TW521138B - A method for incinerating a waste and the apparatus thereof - Google Patents

Abstract

The present invention is to provide a method and an apparatus for incinerating a waste, including a municipal refuse by means of a fire grate type or a fluidized bed type incinerators, which suppress a concentration of substances such as dioxins contained in wastes. That is to say, it has been found that the sulfur content or nitrogen compounds in a sludge are effective in suppressing the generation of a sort of dioxins. This waste incineration system performs a mixed fuel combustion of waste, sludge, solid fuel, plastics and others. Further, it suppresses the temperature of combustion waste gas and the SOx concentration after the mixed fuel combustion. As a result, the present invention is characterized in by reducing the generated amounts of dioxins.

Description

521138 V. Description of the invention α) [Technical Field] The present invention relates to a method for incineration of waste and a device thereof. [Background Technology] Wastes such as municipal waste and industrial waste (hereinafter, referred to as "waste" means municipal waste and / or industrial waste) are treated by incineration in most cases. Dispose for burial. As for the waste incineration equipment, a grate incinerator is provided in most cases, but a fluid bed incinerator is also provided. In an incinerator equipped with a furnace-type incinerator, waste incineration is carried out as follows: First, the waste is charged into the incinerator to make use of the combustion air blown from below the grate and the radiant heat in the furnace. The temperature rises while drying and catches fire; secondly, the waste is burned and ashed, and the incinerated ash is discharged out of the furnace. On the other hand, because the combustion exhaust gas contains flammable gas such as 1, C0, ch4, etc. generated during the drying and heating period of the waste and the initial combustion phase, the air is blown into the secondary combustion chamber to perform the combustion of flammable gas deal with. After that, the combustion exhaust gas is discharged from the secondary combustion chamber, and then sent to the exhaust gas treatment process after the boiler is recovered by heat or cooled by a gas-cooled device such as a gas cooler. Secondly, after removing the toxic gas and removing the dust, it is released from the chimney and dispersed. Furthermore, as shown in ^ 2, in an incineration facility equipped with a fluidized bed incinerator, waste incineration is performed as follows: the waste is fed into the fluidized bed incinerator 1 through a general waste input machine 2if The fluidized layer 9 on the fluidized bed 4 is heated and burned while drying. However, due to the

521138 V. Description of the invention (2) The combustion exhaust gas produced contains flammable gas such as h2, C0, ch4, etc. The air is blown into the rest of the incinerator to perform the treatment of combustible gas combustion. Then, the 'combustion exhaust gas is cooled in the gas cooling equipment, and is then sent to the exhaust gas processing equipment 5'. After the toxic gas removal treatment and dust removal treatment, the smoke 6 is released and dispersed in the atmosphere. The fluid bed incinerator shown in Japanese Patent Laid-Open No. 9-303743 is an example. RDF incineration is sometimes performed in such a fluidized bed incinerator. Here, RDF (Refuse Derived Feul) is a waste conversion fuel, which means a fuel formed by adding calcium compounds to industrial waste and municipal waste. This fuel usually has a low calorific value of 300 0 ~ 60 001 {(^ 1/1 ^, moisture 1 ~ 20 wt%). In the case of RDF combustion, there are the following problems: Because RDF contains a large amount of gas This chlorine component easily reacts with aromatic compounds to produce dioxins (as described below). On the other hand, it has recently been found that the combustion exhaust gas generated from waste incineration treatment facilities and the like contains toxic dioxins ( Such as gas dibenzo-dioxine, chlorodibenzofuran, etc.) or other organic gas compounds, has become a major problem in environmental protection. Therefore, 'the requirements for dioxin are being strengthened. Under such conditions The development of various technologies to reduce the dioxin in the combustion exhaust gas is in progress. However, most of these technologies are technologies that capture dioxins and fly ash, so it must be treated separately. It has not become an essential solution. &Amp; The dioxin-like decomposition technology in the lamp gas exhaust gas needs to be dealt with on a large scale. When the technology is applied to the existing incineration equipment, Teach home '/ port and to the substantial

Page 8 V. Description of the invention (3) The equipment modification has difficulties in its implementation. Ceramic filters for processing. The rain is δ and the combustion exhaust gas is placed. [Disclosure of the invention] The present invention is an invention created to solve the above problems, and provides a simple guide for the following problems of burning ash in a waste incinerator. ΐ ΐ. Only: "The above-mentioned state occurs, thereby suppressing the combustion of harmful gases or unburned gas in the furnace. U? i The invention of the above-mentioned problem created by the above-mentioned another-the purpose is to mention: the method of arane waste and its method Equipment: That is, only a simple device and a low-cost substance can be added to reduce the amount of dioxin produced. 2. To achieve the above purpose, the present invention provides the following method or device. That is, first, the present invention provides an incineration The method of waste includes: the preparation step of the sludge with a moisture content of 65 to 90% by weight, a sulfur content of 0 to 2% by weight in a dry state, and a sludge of 1 to 10% by weight of a gas content; -6,000,000 ^ & 1/1 ^ and moisture 1-20 "% of solid solid fuel with low calorific value, 5,000-4, 000 kcal / kg and moisture 30-7 0wt% of solid waste selected from the group consisting of general waste such as municipal waste Or the material preparation step of general waste; Incineration furnace and in that the waste sludge and solid refuse step selected from the group of the fuel waste or co-firing of the ships were. In the first aspect, the present invention provides a method for incineration of waste including:〉 preparation steps for loss, heat loss, and waste plastic having a low calorific value of 4,500 kcal / kg or more;

521138

A step of mixing the sludge with the waste plastic in a waste incinerator; and controlling the furnace outlet temperature of the waste incinerator to 900-L 2000 to control the oxygen concentration at 3-1 2% steps. And in the second, the present invention provides a method for incinerating waste including: a step of mixing the waste with sludge in a waste incinerator; and > determining the s0x of the combustion exhaust gas in the waste incinerator Concentration, and the measured value of the SOx concentration controls the supply amount of the sludge and / or the waste & supply amount. The fourth aspect of the invention provides a method for incinerating waste including: a step of mixing the waste with a sulfur-containing component in a waste incinerator; and measuring the SOx concentration of the combustion exhaust gas in the waste incinerator And controlling the supply amount of the sulfur-containing component and / or the supply amount of the waste according to the measured value of the SOx concentration. In a fifth aspect, the present invention provides a method for incinerating waste including: a step of mixing a sulfur-containing component with a solid solid fuel in a waste incinerator, and measuring the SOx concentration of the combustion exhaust gas in the waste incinerator, and Controlling the supply amount of the sulfur-containing component and / or the supply amount of the refuse solid fuel based on the measured value of the SOx concentration. In a sixth aspect, the present invention provides a method for incineration of waste including: supplying a powder containing sulfur components to a sludge to incinerator supply line or a waste to incinerator supply line; and making the waste in a waste incinerator. The step of co-firing the mud with the waste; and measuring the SOx concentration of the combustion exhaust gas in the waste incinerator, and

V. Description of the invention (5) The measured value of the SOx concentration controls the sulfur content: Seventh, the present invention provides an incineration waste: the method includes 1 person. = > a step of dispersing mud and / or sulfur-containing components to be supplied to a waste sound garbage hopper; and a & furnace = a step of mixing the waste and the component in a waste incinerator By.忒 3 sulfur f eighth 'The present invention provides a method for incineration of waste including: forming the === internally connecting the waste with the sewage ... The sulfur-containing ^ ninth, the present invention provides a method for incinerating waste including: Steps of adding gaseous compounds to wastes · Steps of loading the wastes into an incinerator; and Steps of burning the wastes in the incinerator. In a tenth aspect, the present invention provides a method for incinerating waste including: a step of sending the waste into a drying zone in a grate type incinerator; a step of adding nitrogen compounds to the waste that is reached; and A step of incineration of the nitrogen compound and the waste. In a tenth aspect, the present invention provides a method for incineration of waste, including the step of loading waste into a fluidized bed incinerator; the step of burning the waste in the incinerator; and Steps in which the nitrogen compound is blown into the area before the secondary combustion in the rest of the bed.

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V. Description of the invention (6) In the twelfth 'the present invention provides a method for incineration of waste including the steps of adding nitrogen compounds to the waste; and loading the waste or the waste and sludge into the incinerator Step of burning the waste or mixing the waste with sludge. 'For the step M where the nitrogen gas compound is blown in by the part M of the exhaust gas flow path through which the combustion exhaust gas flows below 650 ° C. & 'In the thirteenth', the present invention provides a method for incineration of waste, including the step of preparing an incineration device having an incinerator, a cooling device, and an electric dust collector; the waste is mixed with the sludge and the Steps; and a step of controlling the cooling device in a manner that the exhaust gas temperature at the inlet of the electric dust collector can become 230 ° C or less. In the fourteenth, the present invention provides a device for incineration of waste including: an incinerator located in the device for incineration of waste; _ a waste% for the purpose of co-firing the waste in the incinerator with sludge And sludge supply device; SO SOx concentration meter for measuring the SOx concentration in the furnace or the furnace outlet;

A control device for controlling the supply of the sludge and / or the waste according to the SOx concentration. ^ I In a fifteenth aspect, the present invention provides a device for incineration of waste including: an incinerator located in the device for incineration of waste; ^ containing the purpose of co-firing the sulfur-containing components and waste in the incinerator

Sulfur component supply device and waste supply device; S is used to measure the SOx concentration in the furnace or the outlet of the SOx concentration meter; w from and 521138 V. Description of the invention (7) is used to control based on the SOx concentration A control device for the supply amount of the sulfur-containing component and / or the waste. In a sixteenth aspect, the present invention provides a device for incineration of waste including: an incinerator located in the device for incineration of waste; the sulfur-containing component for the purpose of co-firing the sulfur-containing components in the incinerator and solid solid fuel A component supply device and the solid fuel supply device; a Sox concentration meter used to measure the Sox concentration in the furnace, the furnace outlet, or the chimney; and used to control the reading of sulfur-containing components and / Or the control device for the supply of the waste. In a seventeenth aspect, the present invention provides a device for incineration of waste including: a sludge supply device and a waste supply device; and a sulfur-containing component provided in the sludge and the waste supply line to the incinerator Powder supply device. In an eighteenth aspect, the present invention provides a device for incineration of waste including: an incinerator for mixing sludge and / or sulfur-containing components with the waste; a waste hopper attached to the incinerator; and A blower used to disperse the sludge and / or sulfur-containing components for supply to the refuse hopper. In a nineteenth aspect, the present invention provides a device for incineration of waste including: an incinerator used for co-firing sewage / Ni and / or sulfur-containing components with the waste;

88120517.ptd Page 13 521138 V. Description of the invention (8) The burner located in the burner is used to make the grate of the drying section in the twentieth and to be used in the twentieth. The grate in the compound is located in the upper part of the nitrogen-oxygen compound moving bed in the twentieth, and the compound in the twentieth is located in the incineration gas compound to add nitriding to the gas furnace, and a device, the flow path. The drying section furnace f in the second + furnace; and the dirt / Ni and / or the sulfur-containing component are dispersed to the blower of the upper part. The present invention provides a device for incineration of waste, including: a device for adding nitride to the waste entering the incinerator, and blowing nitrogen compounds into the flow path of the combustion exhaust gas. a The present invention provides an incinerator with waste incineration; < 1 dagger · furnace in the furnace; and a slinger, which is used to supply nitrogen compounds to the upper drying zone. Second, the present invention provides a fluidized bed in a burner of a device for incineration of waste; and an adding device for blowing the nitrogen compound into a region before the secondary combustion in the remaining width portion. First, the present invention provides a device for incineration of waste including: an incinerator in the device of the waste; an adding device for the composition loaded in the incinerator; The town of heat recovery is used to blow nitrogen compounds into the burner gas of the boiler outlet. The invention provides a device for incineration of waste including:

Page 14 521138 V. Description of the invention (9) An incinerator located in the device that burns the waste; a nitrogen compound adding device is used to add nitrogen compounds to the waste that is loaded into the incinerator; A gas cooler located behind the incinerator; and a device for blowing nitrogen compounds into the gas cooler outlet to burn off the exhaust gas flow path. In the twenty-fifth paper, the present invention provides a waste incineration device including: an incinerator, a cooling device, an exhaust gas treatment device, an electric dust collector, an exhaust fan, and a dung silk #, U 丨 which is settled in the flue by the chimney. A waste incineration unit connected in series below is placed in the waste supply funnel of the incinerator; the sludge supply funnel installed in the incinerator; the cooling equipment connected to the electric dust collector An inlet gas temperature control device for an electric dust collector; and a temperature detector for detecting an exhaust gas temperature for detecting an inlet temperature of the electric dust collector in the exhaust gas temperature control device for the inlet of the electric dust collector. [Best Mode for Carrying Out the Invention] The following is a detailed description of the implementation of the present invention. The best aspect 1 ^ > This aspect is based on a method of incineration of waste in a waste incinerator with 65-90% by weight of moisture, sulfur 〇1_2 〇wt% in a dry state, and nitrogen fractionation An incineration method featuring 10% by weight of sludge and low-temperature calorific value of 3,000-6,000kcal / kg and moisture content of 20% by weight of RDF at a mixing rate of 10 ~ 70% is achieved. For the above purposes. Page 15 521138 V. Description of the invention (ίο) Again, the co-firing rate mentioned here is defined as follows: Co-firing rate = sludge supply weight / (sludge supply weight + RDF supply weight) The method is characterized by adding sludge to RDF and burning it.

The S component in the sludge exists in the furnace as H2S, cs2, cos, SO, and so3 during the combustion process. These substances have a toxic effect on copper or its quaternary substances that act as catalysts for dioxin generation reaction 2, and ㈣β high temperature ^ exhaust gas lines from the burning site to the furnace exit can effectively inhibit the production of dioxin ^. Furthermore, the N component in the sludge generates ammonia during the combustion process, especially in the reducing atmosphere of the primary combustion field, and because this ammonia reacts with chlorine compounds, it can inhibit the dioxin reaction in the process of dioxin production. . In addition, suppressing the water concentration in the sludge to suppress the reaction rate of the material can reduce the generation of odor. The amount of tritium produced can reduce the concentration of aromatic organic compounds caused by disasters, and the concentration of dioxin-like substances that are completely burned will also decrease. The waste incinerator to which this aspect is applied is any type (type), but in order to improve the miscibility of RDF and sludge and to improve the sludge's burning tick 'take the incinerator that burns while flowing while burning', especially moving bed The incinerator is better. "&Quot; ^ \ As mentioned in /, fuels formed by the addition of sentence iii, such as industrial waste and municipal waste. Municipal wastes are cooking scraps of food, plastic containers' papers, wood chips, etc., and calcium carbonate, slaked lime, etc. for moms. j r ΐ = RDF to T is a substance having a low degree of calorific value of 3000 to 6000 kcal / kg, and a degree of moisture of about 1 to 20%.

521138 V. Description of the invention (ll) Wastewater from sewage sludge treatment equipment, such as the following water sludge: 1. Wastewater generated from organic wastewater treated with activated sludge = water and urine. The sludge produced from time to time in similar situations in the closed waters; Neh, in the other; sludge produced in the process of the second, etc., which can be any kind of sludge. = The sludge that is better in the method according to the method contains nitrogen content i ~ 10% based on dry basis content. ^ Process ql 'sulfur content U ~ 2, GWt%, and the water content of the sludge is 65 ~ 90wU. More appropriate. According to the absolute concentration of h2S, cS2, cos, tritium, SO3, or similar components in the waste gas when the s and n points in the sludge are less than 0.1% and 1%, respectively. It will decrease, and the reduction effect 2 Conversely, if the S and N points in the sludge are higher than 2.0% and 10% respectively, the SOx and NOx concentrations in the smoke will become higher, which may not be achieved A value of 0 is specified. Furthermore, it is difficult to effectively suppress the combustion reaction rate of combustible materials when the water content of the sludge is less than 65%, and it is difficult to maintain the temperature in the furnace when the water content of the sludge is more than 90%. The co-firing rate of sludge and RDF is 10 ~ 70%. The reason for this setting is that a minimum of 10 ppm of S-scores and a minimum of N-scores must be present in the furnace. Otherwise, the effect is not expected. Therefore, it is necessary to set the co-firing rate to more than 0%. Furthermore, if the co-firing rate exceeds 70%, the water content will increase, making it difficult to maintain the furnace outlet temperature at 800 ° C, even in a field where the air ratio is reduced. The sludge and RDF may be mixed and burned in the incinerator, and may be put into the incinerator after being mixed in advance, or may be separately put into the incinerator. The combustion temperature (in the fluidized bed type is the temperature of the remaining portion) is usually 8 5 0 ~ 丨 〇 〇 521138 V. Description of the invention (12) '--- 1 ° C is more appropriate. The structure of the incinerator used in this embodiment is shown in FIG. This incinerator 1 is a flow-type incinerator, and a sand layer provided with a flow layer 9 in its interior is prevented from moving downward by a dispersion plate. Below the board, a bellows is formed, which is used to blow in the combustion air. In this furnace, an RDF charging machine 2 and a sludge charging machine 3 are separately attached. During the incineration process <, the sludge and RDF were respectively put into the furnace from their input machines, and the temperature was raised while drying the flowing sand layer under the air sent from the air box below the dispersion plate And catching fire. The flow of sludge or RDF on the fluidized bed 4 and the remainder above it are burned until the furnace outlet completes its complete combustion: after the incineration is completed, the exhaust gas is taken out of the furnace from the furnace outlet and passed through the exhaust gas treatment equipment After treatment, it is released from the smoke. Under the use of the above incinerator, an RDF with a calorific value of 400Okcal / kg and a water content of 8% made from municipal waste and a water content of 80% 'N content 7%' and S content 0 · 6% of sludge is mixed fired. At this time, the temperature in the furnace was maintained at 850 ° C, and the temperature of the flowing layer portion was changed within a range of 5,000 to 850 ° C, and the temperature of the remaining width portion was 850 to 10,000 ° C. Range to perform incineration. When only RDF was incinerated, the average dioxin concentration obtained was 2. lng / Nm3-teq. However, when the RDF of 1 t / h and the sludge of 0.5 · t / h were mixed, the co-firing rate was 33 · 3. In the case of% combustion, the suppression of the average value was achieved to 0.2 ng / Nm3-teq. Furthermore, a municipal waste having a calorific value of 60 00 kcal / kg and a water concentration of 5 ° / is actually used. RDF, and a sludge with a water concentration of 90%, N content of 7%, and S content of 0.6% for incineration. First, only

Page 18 521138 V. Description of the invention (13) π At this time, after spraying only the water in the furnace, make RDF of 0.6t / h. The mud is mixed fired at a mixed fire rate of 70%. This is equal to the temperature of the furnace exit temperature when the ancient battle of Geng Xi, Da and the burning of RDF only

1 Γ Γ ^ to exert control. As a result, compared with the case where only RDF was burned, RDF- 沄,, p, Rigu + ^ oivi ^ r is half. The average reduction of dioxin concentration in Xinxinxin 4 is about as described above. This release & β ^ 7jc: t ^ R, ΟΛ0 / as much as possible, so that it has a sulfur content of 0.1-2.0%, including difficulties 6 5-9 0%, and f male 1 1 Λ η / 70% of 4 f @ sludge and RDF are burned according to the characteristics of mixed burning rate of 10 ~ 11Λ. Because the water content is high and low = hot summer low It is possible that the sludge is mixed with RDF with low calorific value and high heat generation, which can suppress the generation of harmful gas or unburned gas. Ding Er, the above-mentioned clever mud, participates in the co-firing. Moisture can effectively inhibit the production of dioxins. In the case of incineration of mud, sludge with a high moisture content has a low degree of _ 疋 to the internal combustion state, which can not avoid the temperature of nine, k, or the burning gas, ^ + Τ π Μ ϋ The degree distribution changes in time and space :: uniform sentence. This not only makes it difficult to control 胄, but also has a tendency to generate harmful gases: Ni:; U ',', Benkai 'method It is possible to make this difficult-to-burn pollution garden burn smoothly. The best aspect 2 f aspect is based on-the type of waste in the waste incinerator. The incinerator has a sulfur content of 65, wt% in a dry state, and a sulfur content of 2.00 wt%, and a sludge with a fraction of H0wt% and a low calorific value of 15 ().

Page 19, 521138 V. Description of the invention (14)-An incineration method characterized by mixed burning at a rate of 10 ~ 4 ^% of general waste such as municipal waste such as / kg and water content of 30 to 70% by weight. Those who achieve the above purpose. According to 'the mixed burning rate mentioned here is defined by the following formula ... Mixed burning rate = sludge supply weight / (sludge supply weight + general waste supply weight of municipal waste, etc.) This method is characterized by adding sludge to general waste such as municipal waste and burning it, and the s component in sludge during combustion = Ii2S CS2 COS, S02, and S03 exist in the furnace. These substances have a toxic effect on copper or similar substances that act as catalysts for the dioxin generation reaction. Exhaust gas lines from the high-temperature combustion field in the furnace to the furnace outlet after the exit of the furnace may have the effect of inhibiting the production of dioxins. In addition, the N component in the sludge has been burned over% t, especially in the reducing atmosphere of the primary combustion area, and ammonia is generated, and because this ammonia reacts with chlorine compounds, the dioxin production reaction of C1 during the production of dioxins can be suppressed. . In addition, when the water content in the sludge is suppressed to suppress the combustion reaction rate of combustibles, the amount of radon produced can be reduced. When the production of tritium can be suppressed to a low level, the concentration of aromatic organic compounds caused by tritium will be reduced, so the concentration of dioxin-like substances produced by incomplete combustion will be reduced. The waste incinerator to which this aspect is applied is of any type (type), and a grate incinerator, a fluidized bed incinerator can be used. , Urban waste is a mixture of food crumbs, leftover meals, plastic containers, paper, wood chips, etc., which has a low calorific value of 1 000 ~ 300 0 kcal / kg and a moisture content of 30 ~ 70wt%.

521138 V. Description of the invention (15) / Deficiency, the mixed burning rate of general waste such as urban waste & Another reason is that there needs to be a minimum of 10 ppm of S points and a minimum of 10 ppm of N points in the furnace, otherwise M wears ^ L. ^ The rate is more than ⑽: In addition, Λ Λ is determined by mixed burning. > On the other hand, the right mixing rate is more than 40%, and the water concentration is $: 'It is difficult to maintain the temperature of the furnace outlet to 800, even when it is operated at an air ratio. s 2 = The general waste of the second city garbage can be mixed and burned in the incinerator, and the second post technology can be put into the incinerator or put into the incinerator separately. . It is suitable that: 70 ° / solitary degree (in the fluidized bed type, the temperature of the remaining portion) is usually 8500 to 100 ° C. The structure of the incinerator used in this embodiment is shown in FIG. ^ f, furnace 1 is a grate-type incinerator, in which the main combustion chamber is inferior i Γ two (that is, the drying section 11, the combustion section 1, 2, and the post-combustion section 1 3) ^ inclined in the second section structure. The uppermost part of the grate in the main combustion chamber ^ = the waste chute 10 used for the waste branch, and the lower end of the grate forms the grate, the grate chute is 15 °, and 'the secondary is provided above the main combustion chamber The combustion chamber takes Is 1 and uses η to set the secondary combustion of the combustion exhaust gas. The sludge and waste are put into the furnace from the waste α «, and the fuel is sent to the drying equipment for automatic supply. 1 The air from below and the radiant heat inside the furnace were dried under fire, and the vessel was on fire. The waste and sludge that started to burn from the fire are sent to the automatic fuel supply device of J " °, and are rolled under the use of the combustion chamber gas from below. Gan i. ^ The unburned part is in the post-combustion section. Completely burned. After the incineration ^ the stored ash is taken out to the outside using the main ash chute 15. Combustion treatment is being carried out in Shenhe _, and the combustion exhaust gas (furnace gas) is in the secondary combustion.

521138 V. Description of the invention (16) The chambers 14 and 4 are mixed to perform secondary combustion to completely burn the unburned part, and are sent to the exhaust gas treatment equipment. Using the above incinerator, the temperature of the drying section which is actually maintained at a temperature of 8500 ° C and the temperature of the drying section which is changed in the range of 650 to 850 ° C, and the combustion chamber which is changed in the range of 900,000 to 1,000 Below the temperature, an urban waste having a calorific value of 230 kcal / kg and a sludge having a water concentration of 80 wt%, n content of 7 wt%, and S content of 0.6 wt% were incinerated. Where only municipal waste is incinerated, dioxin is paid; the average degree is 1.6 ng / N m3 -1 eq. However, when 2t / h of municipal waste is treated with 1 t / h of sludge, When the co-firing rate is 33.3%, the average value is suppressed to 0.25ng / Nm3-teq. Furthermore, in a fluid bed incinerator, a municipal waste having a calorific value of 280 kcal / kg and a sludge having a moisture content of 90 wt%, N content of 7 wt%, and S content of 0.6 wt% were actually incinerated. Compared with the case where only municipal waste was burned and the case where municipal waste was mixed with sludge, the average concentration of dioxin in urban waste-sludge mixed burning was reduced by about 60%. Press again. At this time, the experiment is performed with the furnace outlet temperatures of both sides being equalized. As explained above, this aspect is a kind of general waste such as sludge and municipal waste with a sulfur content of 0.1-2.0% by weight, moisture of 65-90% by weight, and nitrogen content of 110% by weight. A combustion method characterized by a mixed firing ratio of 10 to 40%. The sludge with high moisture content and low calorific value can be mixed with municipal waste with low calorific value, which can stabilize the combustion state in the furnace and suppress the generation of harmful gas or unburned gas. In addition, S, N, and water in the sludge having the above-mentioned component concentration can effectively suppress the occurrence of dioxin. Sludge with high moisture content reduces furnace temperature due to low heat

Page 22 521138 A certain burning state. Therefore, the temperature or the blade of the combustion chamber becomes uneven in time and space, which causes a problem that unburned gas or harmful gas is easily generated. When a material incinerator is widely used as an incinerator, it is sometimes said that it is not possible to perform complete combustion or the path of the furnace turtle is blocked. Usually, the method of incineration of sludge may not make this possible. Combustion Pollution V. Description of the Invention (17) It is difficult to control the concentration of the combustion gas and it is difficult to control the temperature. Furthermore, it is burned with waste air under the pressure of sludge entering the furnace. However, the mud burned smoothly according to the present. The best aspect 3 In a fluidized bed type, the incineration of chlorine components and aromatic aocinoids (such as chlorine di ^), due to the combustion reaction caused by waste plastics, the yield of dioxin is increased, causing Dai to solve this problem. Blow-in method. The properties of plastics are different. Hazardous gases of this kind are used to decompose waste plastics. The guide is simpler. Burning waste plastic compounds in a combustion furnace will cause inverse I and dioxin. Progress. Therefore, the method of changing the concentration of ausin species that is affected by the biological process. However, in the past, when the change in the temperature of the exhaust gas is very plastic, waste plastics should be used, which results in dibenzofuran content. The temperature reaches the problem that the aromatic system of the plutonium or unburned portion is high. Due to the large amount of technical and combustion gas flow, it is difficult to effectively control the design of the above problems. The purpose is to provide the following methods: to introduce methods to maintain a certain furnace combustion state without causing the above problems, In this way, it is easy to cause wearing problems due to the gel contained. At high temperatures, it can lead to waste management or investment of dioxin.

Page 521138

The harmful effects of this system can be ~ 1200, and the remaining waste gas due to the waste plastics of the sludge is the same as that of the wood gas. ~ 2 2 The state expected to solve the above problems, and its calorific value is 4500kcal / kw The waste plastic at: C furnace exit temperature and 3 ~ 12% furnace outlet oxygen mixed burning characteristics of the waste plastic incineration method to achieve the above goal ^, high water content and low calorific value of sludge and sludge; rubber mix Burning can suppress the temperature of the flowing layer to a low temperature and maintain the temperature, so that the combustion state in the furnace is stabilized, so: or the discharge of unburned gas. 1 Sting In addition, the co-firing method of waste plastic and sludge can inhibit the production of dioxins more than the tick burning method of waste plastic alone. " ° The S component in the sludge exists in the furnace as h2s, cs2, cos, S () 2, S () 3 during the combustion process. These substances have a poisoning effect on copper or similar substances that act as the catalyst 3 for dioxin generation reaction, and the exhaust gas pipeline from the high-temperature combustion field in the furnace to the furnace outlet can effectively suppress the generation of dioxin. Moreover, the N component in the sludge generates ammonia during the combustion process, especially in a reducing atmosphere in the primary combustion area, and the reaction of ammonia with chlorine compounds can inhibit the dioxin production reaction of C1 during the production of dioxins. In addition, 'inhibiting the water concentration in the sludge to suppress the combustion reaction speed of the combustibles' can reduce the amount of tritium produced. When the amount of tritium produced can be reduced, the concentration of aromatic organic compounds caused by tritium will decrease, so the concentration of dioxin-like substances in incomplete combustion products will also decrease. In addition, when the temperature of the sand layer is set to a low temperature such as 380 ~ 450 ° C, the reaction speed of the waste plastic in the flowing layer will decrease. Therefore, solid waste plastic

521138 V. Description of the invention (19) The gasification is slow, and the mixing of the gas and air produced by waste plastics is kept balanced. As a result, it is possible to suppress (reduce) the production of tritium from unburned substances, and to suppress the occurrence of dioxin, which is an incompletely combustible substance, in a broad sense. The flammable components in the gasified waste plastic and sludge are burned in the remainder of the high temperature to further suppress harmful gases, and reach 900 ~ 1200 at the furnace outlet. (:. Moreover, the operation of supplying air to the furnace is performed under the oxygen concentration of 3 to 12% at the furnace outlet until the furnace outlet can be completely burned. The waste incinerator applying this aspect belongs to any kind of ( Type), and grate type incinerators can also be used. However, in order to improve the miscibility of waste plastic and sludge and improve the sludge flammability, it is best to use an incinerator that burns while burning. Especially the fluidized bed incinerator is better. Waste plastics have a low calorific value of more than 45,000 kcal / kg with combustibles (better than 4500 ~ 120,000 kcal / kg, and more than 4500 ~ 8000 kcal / kg). The degree of chlorine content is less than 20 wt%, and 0.1 to 10 wt% is more appropriate. The mixed burning rate of waste plastic and sludge is 10 to 70%. The reason for this setting In order to 'require the presence of at least 10 ppm ppm of S-scores and at least 0 ppm of n-scores in the furnace', otherwise the effect is not expected, so it is necessary to set the co-firing rate above 丨. Otherwise, if the co-firing rate exceeds 70%, the water concentration becomes higher, making it difficult to maintain the furnace The temperature of the mouth is above 90 ° C, even when operating at a reduced air ratio. The sludge and waste plastic can be mixed and burned in the incinerator, and they can be put into the incinerator after mixing in advance or separately. It can also be put into an incinerator.

88120517.ptd Page 25 521138

Regarding the combustion conditions, 'where the furnace outlet temperature is 900 ~ i 2 000 ° C, and the furnace outlet oxygen concentration is about 3 ~ 丨 0%, and when a fluidized bed furnace is used for the incinerator', the sand layer is used. The temperature can be set by the method of 38 ° ~ 45 ° rc. Usually, it is difficult to maintain the sand layer temperature below 450 1 when the municipal waste or waste plastic is burned separately. However, due to waste plastic and pollution ^ ^ ^ / defect The fixed carbon component in the mud plays a role in maintaining the temperature of the sand layer; 0 450 ° C. Waste plastic sludge and sludge are in the second layer in the flowing layer; burned. Preferably, the fluidization of the flowing layer is 2 ~ H:

Thirty eight A C. After that, the complete combustion of the incinerator was completed while the high temperature was maintained, and the furnace outlet reached 900 ~ 12〇 (rc :: t = after the exhaust gas was maintained at an oxygen concentration of 3 ~! After passing through the waste gas place, the furnace exit is taken out of the furnace too. Ϊ́ 处理 The device is processed and placed outside. The incineration used in this ~, the same example is a mobile structure = In Figure 4.

The sand layer of the fluidized bed is prevented by the dispersion plate; the formation-formation bellows skin is provided inside for the combustion. Below the dispersing plate, a waste plastic input machine 20 and 丨 depleted mud ^ are separately attached. In this incinerator, separate sludge and waste plastic are input from it. During the incineration process, the air sent from the bellows below the dispersion plate is put into the furnace, and the use layer is dried while heating up and catching fire. Make it in the flowing layer of the fluid layer and the remaining two or waste plastics on the (flowing bed 4f). After the incineration is completed, the exhaust gas is exhausted from the exit; After the processing equipment is processed, the smoke is taken out of the furnace from the furnace, and it is out of the furnace.

521138

V. Description of the invention (21) Each has a sand layer thermometer 21, a furnace outlet thermometer 22, and a furnace outlet oxygen / chenity detector 2 3 ', which are mainly controlled in such a way that the measured values can enter the specified range ^ It can be used in the case of automatic control. Press again, in order to replace the furnace outlet oxygen concentration meter (detector), a concentration meter is set near the smoke picture, and the oxygen concentration at the furnace outlet can also be estimated from its concentration value. Owt% ， 1 Under the use of the above incinerator, actually make a polyethylene-based waste plastic with a low calorific value of 8500kcal / kg and a chlorine content of iwt% with a moisture content of 88wt% and N content of 6. Owt% ， And water sludge below 1.0% by weight ^ Do not mix and burn at a supply of 500kg / h "to maintain the temperature of the sand layer at 38 (j ~ 450 ° C, the temperature of fluidized air is maintained at 20 ~ 28. 〇c, the field at the furnace outlet is maintained at 900 ~ 1 200, and the oxygen concentration at the furnace outlet is maintained at 3 ~ 12%. As a result, compared with the case where only waste plastic is burned, the average concentration is reduced by about half. " Take 4 octanes, and actually make a polyethylene with a main body of waste plastic with a low hair volume of 6,000 kcal / kg and an air content of 4wt% and a moisture content of 86 奵%, N 4wt%, and S Each 0.8% by weight of raw urine sludge is burned at a rate of 500kg / h. The temperature of the sand layer is maintained at 380 ~ 45 {rc, and the fluidization degree is maintained at 40 ~ 281TC. The temperature was maintained between 90 ° and 1200 ° F and the oxygen concentration at the furnace outlet was maintained at 3-12%. As a result, compared with the case where only the rubber is burned, the concentration of dioxin is flat. The degree of suppression. Especially under the conditions of sand layer temperature of 44 (rc, fluidized air temperature of 20 ℃, the remaining temperature of 95ITC, furnace π temperature of 92 (rc, R, and furnace temperature of 8 ± 2%)时 ， # The dioxin class to export the furnace

Page 27 521138 V. Description of the invention (22) The concentration is suppressed to 0.06ng / Nm3-teq. As explained above, the present invention is an incineration characterized by making waste plastics with low calorific value of flammable materials more than 450,000Okcal / kg in a specific range to keep the furnace outlet temperature and the furnace outlet oxygen concentration below the furnace outlet with mixed sludge. method. It is possible to achieve stable combustion by mixing the sludge with high moisture content and low calorific value and plastic with low calorific value. Therefore, it is possible to suppress the exhaustion of harmful gas or a part thereof. In addition, when the sand layer temperature is set to a low temperature, such as 38 ° ~ 45 ° C, the reaction rate of primary combustion will be reduced, and the balance of mixing and stirring with air can be fully maintained, so it can be suppressed (reduced) / The amount of production, and can inhibit the production of dioxins. The gasified waste plastic and dirt = Γ combustibles are burned at the remaining temperature to further suppress the generation of harmful gases, and the temperature at the furnace outlet reaches a temperature of 900 ~ 1200 ° c. Because the oxygen concentration of 3 ~ 12% is maintained at the furnace outlet until the furnace outlet < dish%

Full burning. In the case of automatic control, it is sufficient to program the value of each temperature P 入 into its parameter. The best form of chaos / morning 4 Mud: ϊίϊϊ 物 Ϊ, the inventors, etc. aimed at using waste incinerators to make waste and pollution: the effective inhibition method of dioxin in the waste treatment process, and carefully researched the results. See seeing (finding). That is, 'in the treatment of waste, & the control of the input ratio of achievables and the amount of sludge input, effectively inhibited the generation of dioxins. In addition, set the content of the above-mentioned sludge within the range;

Page 28 521138 V. Description of the invention (23)), nitrogen content (nitrogen content), and water content (water content) can further increase the effect of inhibiting dioxin. This aspect is the aspect designed based on the above knowledge, and includes the following concepts as its characteristics. That is, 'this aspect provides a method for treating wastes mixed with sludge in an incinerator, measuring the SOX concentration in the furnace or the furnace outlet, and controlling the sludge and / or waste according to the measured value Disposal method of waste, which is characterized by the amount of material supplied. According to 'In this aspect, the above incinerator is preferably a fluid bed furnace, and it is best to control the above sludge and / or waste in such a way that the above-mentioned SOX concentration can be 100 ~ 2,000,000 ppm. Of supply. In addition, in this aspect, it is preferable that the above-mentioned sludge has a sulfur content of 0.1 to 2.0% and a nitrogen content of 1 to 10% on a dry basis weight, and its water concentration is 65 to 90% by weight. The present invention provides a treatment device for a waste in which sludge is mixed with waste in an incinerator, and includes an SOx concentration meter for measuring the SOx concentration in the furnace or the furnace outlet, and A waste treatment device characterized by a control device that controls the supply amount of the sludge and / or waste based on the measured value. According to another aspect, in this aspect, the incinerator is preferably a fluidized bed furnace, and it is preferably equipped with a method for controlling the above-mentioned sludge and / or in such a manner that the SOx concentration can become 丨 00 ~ 2,000,000 Control device for the supply of waste. In addition, in the apparatus of this aspect, it is preferable to treat sludge having a sulfur content of 0.1 to 2.0% and nitrogen content on a dry basis weight, and its

521138

Those with a water concentration of 65 ~ 90wt%. In the related waste incinerator, the waste is mixed with sludge, because the monitoring of the sox concentration in the furnace or the furnace outlet can effectively dioxin. The SOx concentration in the furnace or the furnace outlet can be used as a reference for the combustion reaction in the furnace, etc. 2. In addition, the SOx concentration can be used as an indicator of the amount of sludge input because almost all of its 3 amount comes from sulfur in the sludge. That is, the index when you want to know what kind of sludge is put into the ratio of the amount of waste or you want to know the degree of combustion in the furnace. Therefore, adjusting the SOx concentration in the designated range or the furnace outlet can determine the input ratio of sludge to waste required for stable combustion, and it can suppress dioxin with good effect. To realize this effect, only set the sox concentration meter in the furnace or out of the furnace. In the case of automatic operation, only its value is incorporated into the operating parameters, that is :. This effect can be achieved relatively inexpensively without special modifications. Then press' When it is difficult to set the sox concentration meter in the furnace or the furnace exit == similarly, set the sox concentration meter in the chimney and set the sox concentration in the chimney " ° to be the specified Within this range, this effect can also be obtained. The following uses FIG. 5 to further explain this aspect. Fig. 5 ^ shows an example of a waste treatment device in an original state. The first and second processing facilities are equipped with a fluidized bed incinerator 101, a waste input machine 102, and a ^ / b technology incinerator 103. Here, the incinerator 101 is connected to an exhaust gas treatment device & A chimney 112 is connected to the exhaust gas treatment device 110. In addition, a sox concentration meter 〇〇6 is installed at the outlet 1 of the 乂 k furnace 1 〇1 and designed.

521138 V. Description of the invention (25) The concentration detection signal from this density meter 106 can be input to the control device measuring instrument (meter) 107. " 5 Secondly, 'sludge and waste are put into the fluidized bed incinerator 101 from each of the input machines 1 0 2 and 10 3 in FIG. 5, and then fluidized with the fluid sent from below the dispersion plate 04 A layer of fluidized sand (such as air, etc.) contacts and dries. 'Fire. The burning sludge and waste were burned in the incinerator 101. In order to suppress the cause of increasing the concentration of dioxins, it is preferable that the time for the band retention to be 3 seconds or more, and the temperature of the exhaust gas at the furnace outlet be less than 700 ° C. “In FIG. 5 ', the input amount of sludge and / or waste is determined so that the measured value of the sox concentration meter 10 installed at the furnace outlet 105 can be within the specified range. That is, the concentration check The output signal is input from the SOx concentration meter 106 into the control device or measuring device 107 connected to the SOx concentration meter 106. Based on this, the sludge and the SOx concentration at the outlet of the furnace & I or the input of waste. Then, increase the input of sludge and / or reduce the input of waste when the SOx concentration is low, and reduce the input of sludge and / Or increase the amount of waste input. In this case, the appropriate SOx concentration at the furnace outlet is 10 () ~ 2, OMppm. If the SOx concentration at the furnace outlet is less than 100ppm, the effect of inhibiting dioxin is Does not meet the requirements, and if it exceeds 2, 000 ppm, the concentration of 2H2S or 3 in the exhaust gas will increase, and many concerns are required in terms of operation and the environment. Pressing 'in this state, you can also increase the concentration of s0x It is estimated that 106 is installed in the incinerator 101, and the concentration of SOx in the furnace can be between Within the designated range (in most 100~2 say, the range of 000ppm) controls the sludge and / or waste

Page 31 88120517.ptd 521138 V. Description of the invention (26) In the investment of waste, the same effect as above can be obtained. In addition, as described above, when it is difficult to install the SOx concentration meter in the furnace or the furnace outlet or the like, the SOx concentration meter may be installed in the chimney. In this case, as shown in Fig. 5, because the white smoke from the upstream of the chimney prevents the air from converging in the exhaust gas pipeline, etc., and has an effect on the concentration of SOx in the chimney, for example, considering the conversion of oxygen 12% to convert the concentration Just fine. In addition, the incinerator in this aspect is not particularly limited, but in order to improve the flammability of sulfur-containing components, a particularly preferred incinerator is a fluid-bed incinerator including a fluid-bed incinerator that burns and burns while flowing, Fluidized bed thermal decomposition furnaces, etc. In addition, in the treatment of the waste related to this aspect, when the sulfur content (sulfur content), nitrogen content (nitrogen content), and water content (water content) in the sludge supplied to the incinerator are adjusted, it may be adjusted. Reduce dioxin classes more effectively. Here, the sludge from sewage-based wastewater equipment is as follows: water sludge, fecal urine, sludge generated when organic wastewater is treated with activated sludge, ί = sludge generated when it is separated, and dredged in rivers Time = similar to the situation of sludge generated in closed waters, sludge generated in other processes, etc. 'is not particularly limited. Sample 丨 waste treatment in f = type incinerator, which explains this situation. However, this aspect has not been affected by these implementations. The temperature in the furnace of 50 to 700 ° C, with stone claw knives 0.7% (dry basis weight), nitrogen 6% (teach their tongues ^ ^ ^ 〇B «χ ^ 〇 1 7 UX / Chendu and dioxin concentration

), And sludge with a moisture content of 75% by weight and low θ soil Page 32 521138 V. Description of the invention (27) The relationship with the concentration of toxic substances (HJ + SO3) is shown in the graph. Based on this result, controlling the supply of sludge so that the SOx concentration at the furnace outlet can be 100 to 2,000 ppm can effectively remove dioxins and control the concentration of toxic or corrosive substances. 'Again, Fig. 7 shows an example of mixing waste with sludge without controlling the supply of sludge according to the SOx concentration. In this figure γ, a waste feeder 22 (102), a sludge feeder 23 (103), a fluidized bed incinerator (101), a fluidized bed 24 (104), and a furnace outlet 25 are shown. (105), an exhaust gas treatment device 30 (110), and a chimney 32 (112). Based on the description made according to FIG. 5, the sample in this state is used to determine the value of the X-degree value in the furnace or the furnace as an indicator to determine the combustion status in the furnace. It is possible to suppress the exhaust of harmful gases. 丄 == Under the transformation of Genda, the above-mentioned effect can be achieved at a lower cost. Regarding this aspect, Dioxin's effective suppression in this case is aimed at the knowledge of waste disposal in the incinerator. / β ~ Repeated research results, as shown below, in the incinerator to make waste austenoids, to further determine the ^ ^ sulphur content when mixed burning can reduce the outlet outlet SOx concentration to maintain ^ combustion & status indicators Will be produced in the furnace or furnace. It can effectively inhibit Dior when it is within the range of 疋. This aspect is designed according to the above-mentioned A mouth, and includes the following ideas

Page 33 521138 V. Description of the invention (28) is its characteristic. That is, 'this aspect provides a method for treating a waste in which a sulfur-containing component is mixed with waste in an incinerator, measures the concentration in the furnace or the furnace outlet, and controls the above-mentioned sulfur-containing component and And / or a method of treating waste characterized by the amount of waste supplied. = Also know: In this complaint, the above-mentioned incinerator is preferably a fluidized bed furnace, and it is best to control the above-mentioned sulfur-containing component in such a way that the above-mentioned SOx concentration can be 100 ~ 2, 000 ppm. Or waste. Furthermore, the present invention provides a waste treatment device borrowing an incinerator, which is provided with a sulfur-containing component supply device and a waste supply device, which is used to measure the concentration of sox in the furnace or the furnace outlet. , A densitometer, and a waste processing device characterized by a control device for controlling the above-mentioned sulfur-containing component and / or waste based on the measured value for the next summer. In the device of the best Ui aspect, the above-mentioned incinerator is compared with a fluid bed furnace, and the above-mentioned S0x concentration can be used to control the supply amount of the sulfur-containing component and / or waste at a concentration of 100 ~ 2,000. In the treatment technology for controlling related wastes, because the waste is mixed with sulfur-containing components in the incinerator and the concentration is reduced, it can effectively reduce the dioxin in the furnace or at the outlet of the furnace. In the JJ S, M furnace. These substances have a toxic effect on acting as Dior 1, CoS, So2, and So3 existing in similar substances, but = copper of the catalyst or exhaust gas lines after the mouth, can effectively suppress: = until the furnace Out

丄 1 JO 丄 1 JO V. Description of the Invention (29) Furthermore, the index of the furnace. This material can also be a component. How to know the range of the furnace is determined. Its realization can be better. In order to achieve the mouth, the parameter value 0 or the concentration of S0x in the furnace outlet can be used as Because of the δ amount of the external iSox concentration such as the combustion reaction in the furnace, the sulfur content is almost an indicator of the amount of sulfur-containing component input. That is, an index when you want to know the level of the contained species relative to the amount of waste, or want to know how much the burning progresses. Therefore, at the indicated j, the concentration of iS0x in the furnace or the furnace outlet for combustion can stabilize the amount of sulfur-containing components required for stable combustion conditions, thereby suppressing dioxins at the political rate. This effect 'is only to set the Sox concentration meter in or out of the furnace. In the case of an incinerator that operates automatically, it is only necessary to program its value. No special modification is needed to achieve this effect at a lower cost. It is also known that, in the case where it is difficult to set the Sox concentration meter in the furnace or the furnace outlet or the like, a Sox concentration meter is installed in the chimney to change the S0x in the chimney. By adjusting the concentration within the specified range, the effect of the present invention can also be obtained. The following uses drawings to explain this aspect in more detail. FIG. 8 shows an example of the waste treatment apparatus in this aspect. This treatment device is provided with a fluidized bed incinerator 1 0 1, a sulfur-containing component supply device 1 0 3 ′, and a waste supply device 1 2. The incinerator 1 0 1 is connected to an exhaust gas treatment device 110. The exhaust gas treatment device 110 is connected to a chimney 112. Furthermore, a SOx concentration meter 106 is installed at the outlet 105 of the incinerator 101, and it is designed so that a concentration detection signal from the concentration meter 106 can be input to a control device or measuring device 107. Next, the sulfur-containing components and wastes are supplied from each supply device in FIG. 8 〇 02 2.

521138 V. Description of the invention (30) 103 After being put into the incinerator ΐ (π, it is brought into contact with the sand layer fluidized by the flowing gas (such as air) sent from below the dispersing plate 104 to dry and catch fire. Sulfur containing fire The components and wastes are burned in the incinerator. At this time, in order to suppress the occurrence of dioxine and the like that cause the increase in dioxin concentration, the residence time should preferably be more than 3 seconds, and the exhaust gas temperature at the furnace outlet should be The temperature is lower than 70 ° C. The exhaust gas is discharged from the furnace outlet 105, and after being processed by the exhaust gas treatment device 110, the smoke picture 112 is released to the outside. In FIG. 8, it is installed at the furnace outlet 1 The measured value of the SOx concentration meter 10 can determine the input amount of sulfur-containing components and / or wastes within a specified range. That is, the concentration detection signal is from the SOx concentration meter 1. 6 Enter the control device or measuring device 107 connected to the SOx concentration meter 106 and use it as a basis to determine the sulfur content and / or waste based on the SO X concentration at the furnace outlet 105 can be within the specified range. The amount of material input. Then, in the field with a low concentration of sox In combination with increasing the amount of sulfur-containing components and / or reducing the amount of waste input ', on the contrary, when the SOx concentration is high, reducing the amount of sulfur-containing components and / or increasing the amount of waste. In this aspect, the furnace The appropriate Sox concentration at the outlet is 100 ~ 2, 00〇ρριη. If the SOx concentration at the furnace outlet is lower than 100ppm, the effect of suppressing dioxin is not satisfactory, and if it exceeds 2,00ppm, the exhaust gas The concentration of the toxic substance h2s is increased, and there are many concerns in terms of safety and health. According to the 'in this state, it is also possible to install the SOx concentration meter 106 in the furnace' and the SOx concentration in the furnace can be at The amount of sulfur-containing components and / or waste is controlled in a manner within the specified range (preferably in the range of 100 to 2,000 ppm). Furthermore, as previously mentioned, it is difficult to reduce the s 〇x concentration meter

Page 36 521138 V. Description of the invention (31) Where it is placed in the furnace or the furnace outlet or the like, the meter m is set to ㈣! 12. In this case, as shown in the figure, the white smoke upstream of the concentration chimney can prevent the air from converging on the exhaust pipe, and the place where the sound is loud, for example, consider the conversion of oxygen and oxygen 12%; = ^ Moreover, the incinerator in this aspect is not particularly affected. To improve the flammability of sulfur-containing components, a particularly good incinerator ^, but for the flow-side combustion of the fluidized bed furnace includes flow; = 煻 ^-thermal decomposition furnace and so on. &Amp; furnace, fluidized bed = the above explanation, according to the degree of furnace or furnace outlet value 'can determine the content required to achieve stable combustion conditions; rm rate, it is possible to effectively suppress the best dioxin To achieve this effect cheaply with great improvements. This aspect provides the RDF processing method and device, which guides the simpler device to maintain the discharge of harmful gas or unburned gas in a certain furnace during the incineration process. . With both hands to reduce i ^ this aspect, the inventors of this case and other research on the RDf treatment of the incinerator 1 = = effective suppression method of similar research results, as follows =, when RDF and sulfur-containing components in the incinerator It can suppress the occurrence of 1 f, and is an indicator for judging the combustion status in the furnace. When the SOX concentration in the furnace or the furnace outlet is maintained within the specified range, it can effectively suppress the Lu system.

Page 37 521138 V. Description of the invention (32) The generation of dioxin. This aspect is the aspect designed based on the above knowledge, and includes the following concepts as its characteristics. That is, 'this aspect provides a method for treating RDF in which the sulfur-containing component is R]) F in an incinerator, measures the concentration of g0x in the furnace, the furnace outlet, or the chimney, and controls the above according to the measured value The processing method of RDF characterized by the supply amount of sulfur-containing components and / or RDF. Furthermore, in this aspect, it is preferable that the incinerator is a fluidized bed furnace, and the supply amount of the sulfur-containing component and / or RDF is preferably controlled so that the SOx concentration can be 50 to 400 ppm. Furthermore, the present aspect provides an RDF processing device for incinerators for mixing sulfur-containing components and co-firing, which includes a supply device for sulfur-containing components, and a supply device for rdf. A chimney concentration SOx concentration meter and an RDF processing device characterized by a control device for controlling the supply of the sulfur-containing component and / or RDF according to the measured value. According to another aspect, in the device of this aspect, the above incinerator is preferably a fluidized bed furnace, and it is preferably provided with a chimney so that the above-mentioned concentration of sox can be 50 to 400 ppm to control the sulfur content. Control device for the amount of ingredients and / or supply. In the RDF processing technology related to this aspect, since the RDF is mixed with the sulfur-containing component in the incinerator and monitoring the SOx concentration in the furnace, the furnace outlet, or the smoke at this time, the dioxin can be effectively reduced. Sulfur components exist in the combustion process as! ^, Cs2, COS, s〇2, S〇3

V. Description of the invention (33) Inside the furnace. These substances are oblique to the II bucket, and their similar substances have toxic effects, and the waste gas pipelines after the reaction catalyst copper or mouth can have a 12-temperature heating field in the furnace until a part of the furnace is out. Substances inhibit the production of dioxins. Furthermore, p-substance ^ inhibits the dioxin uranium reaction of C1 during the production of dioxins. As a result, the occurrence of Dai Haoxin's quasi-genetic species such as Zhi Zhi and A i was suppressed. Dioxin of the process and its wake. Furthermore, in the furnace or the furnace outlet, there are indicators such as + 〇Λ, Qu + _ burning reaction. In addition, the degree can be used as the internal combustion of the furnace ==: can also become the reference phase of the amount of sulfur-containing components: ::: Ercheng Γ Do not be to what extent the relative amount of ratio is: into Zhixin to know the furnace The degree to which the combustion progresses. Also, this SOx concentration is an index for the purpose of performing the response that contributes to the above-mentioned dioxin 'reduction with good efficiency. In order to achieve this effect, it is only necessary to set the SOx concentration meter at the inside of the furnace, or smoke II, and in the case of an incinerator with automatic operation, it is only necessary to program the parameters of the operation. No special change is needed. 1 j 钗 低廉 贯 Use Figure 9 below for a more detailed description. FIG. 9 shows an example of the waste treatment apparatus in this aspect. Here, the device is provided with a fluidized bed incinerator 110, a supply device 1330, and a sulphur-containing component supply device 1 32. Here, the incinerator 100 is connected to an exhaust gas X production and device 110, and A chimney 112 is connected to the exhaust gas treatment device 110. Re-emulsion treatment The SOx concentration meter 1 2 7 is installed in the above chimney 112, and it is designed so that the concentration detection signal from this concentration meter 127 is input to the control device or measurement =

P.39 521138 V. Description of the invention (34) 128 ° Next, the RDF and sulfur-containing components are put into the incinerator 101 from each of the supply devices 130 and 132 in FIG. 9 and sent from below the dispersion plate 104. The fluidized sand layer from the fluidized gas (such as air) comes into contact with it, dries, and catches fire. The fired sulfur-containing components and RDF were burned in the incinerator 101. The exhaust gas is discharged from the furnace outlet 106 through the exhaust gas treatment device no and discharged from the chimney 112 to the outside. In FIG. 9, the input amount of RDF and / or sulfur-containing components is determined such that the measured value of the SOx concentration meter 127 installed in the chimney 112 can be within the specified range. That is, the concentration detection signal is input from the sox concentration meter 127 installed in the chimney 112 to a control device or measuring device ι01 that is connected to the SOx concentration meter 127. Based on this measurement value, the sox concentration in the chimney is used. The amount of RDF and / or sulfur-containing components may be determined within a specified range. Then, in the case of low SOx concentration, increase the amount of sulfur-containing components and / or reduce the input of rdf. On the other hand, in the case of high SOx, the amount of sulfur-containing components is reduced and / or the waste is increased. The amount of investment. Press again, as shown in Figure 9, because the white smoke from the upstream of the chimney prevents the air from converging with the exhaust gas, etc., and if it has an effect on the SOx concentration of the chimney, the second method is to convert the oxygen by 12% to estimate the concentration. can. When automatic control is performed, this S0x concentration value may be added to the operating parameters. / In this aspect, the appropriate SOX concentration of the smoke is 50 to 400 ppm. If the smoke kSOx concentration is lower than 5GPPm, the reaction using the above sulfur component cannot be effectively performed, and if it exceeds 40 0Ppm, the tail caused by sulfur oxides in the exhaust gas

-40- 521138 5. Description of the invention (35) The possibility of flow corrosion is very high. Again, in this state, it is also possible to set the SOx concentration meter in the furnace or the furnace outlet, and the SOx concentration in the furnace or the furnace outlet can be within the specified range of fe (preferably all can be within 60 In the range of ~ 600 ppm), the amount of sulfur components and / or the input amount of sulfur-containing components can also be controlled in this case: the same effect. Again, the incinerator in this aspect is not particularly limited, but in order to improve the flammability of sulfur-containing components, a preferred incinerator is a fluidized bed incinerator that burns while flowing. Therefore, according to this description, according to this state #, in the solid waste treatment of the incinerator, the sulfur-containing plutonium: material input ratio required to achieve stable combustion conditions can be determined. May effectively inhibit the effects of dioxins ^ This does not require 彳 m transformation to achieve the best aspect of the low cost 7 is to provide a method and device for waste treatment, the furnace to make sludge and waste The mixed-burning waste treatment towels are maintained at-疋, thereby reducing the dioxin class with good efficiency. ^ The inventors of the case have focused on the results of intensive research on effective suppression methods in the waste treatment of incinerators. # To the following, P will use 313 pipelines for waste treatment technology that co-firing mud and waste. Ίt The powder is supplied to the sludge or waste supplied to the incinerator, which can effectively supply the sulfur-containing components in a stable state.

> 21138

Those who have less effect on dioxin concentration. Further, in order to control the amount of sulfur-containing component powder required to achieve stable combustion conditions, the concentration of the sox in the furnace, the furnace outlet, or the chimney is used as an indicator to judge the combustion status in the furnace Maintaining the percentage within the specified range can further improve its effect of inhibiting dioxin. The aspect is the aspect designed based on the above knowledge, including those that are characteristic of it. That is, the sludge for the waste is based on this. Compared with the method, the burner is the waste to the device pipeline. In addition, it is used to calculate the waste. The waste treatment method for mixed burning of mud and waste is a method for treating waste characterized by supplying sulfur-containing component powder to a pipeline for supplying waste to an incinerator. In the sample, determine the sox concentration in the furnace, the furnace outlet, or the chimney. The measured value is used to control the supply amount of the sulfur-containing component powder. Preferably, the above-mentioned sox concentration from the smoke can be 50 to 400p. The supply amount of the sulfur-containing component powder is controlled. Furthermore, the above-mentioned fluid bed furnace is preferred. In this aspect, there is provided a processing device for incineration of sludge and waste in an incinerator, which is provided with a powder for supplying a sulfur-containing component for supplying the powder to the sludge or waste for incinerator. It's a waste treatment device. This complaint provides a waste treatment device having a sox concentration of sox concentration in an oven, a furnace outlet, or a chimney, and is used to control the sulfur-containing component based on the measured value. The control device for powder is a characteristic waste treatment device. Here, compared to the way that the above-mentioned SOx concentration of smoke can become 50 ~ 400ppm, it is 521138

The above-mentioned sulfur-containing component powder is controlled. Furthermore, it is a fluidized bed furnace. Jia Jia, the above incinerator, the above "sulphur content powder supply paper refers to the sulfur powder storage tank and sludge supply line, or n 5ρ $" is the sulfur powder supply line connected to the waste supply line and The treatment technologies such as storage tanks and wastes related to the waste in this state were mentioned; since the = is not supplied to the pipeline for supplying sludge or waste to the incinerator, the amount of sulfur-containing components in a stable state = :: its amount Sufficient to reduce the working concentration. In the case of μXingzhong, while the sulfur component supply line (for supplying the sulfur component powder is connected to the sludge supply line or the waste supply line to the incinerator, the sulfur component powder and the sludge or waste When the materials are mixed, the mixture is supplied into the furnace, and the mixed uniformity consisting of sulfur powder and sludge or waste can be supplied into the furnace. Moreover, the sulfur-containing components can be avoided and directly supplied into the furnace. The danger caused by the non-uniformity in the furnace or the explosion of dust, etc. Also, the operation of starting and ending the supply of sulfur components can be started and ended together with the start and end of the supply of sludge or waste during operation, which can establish the simplicity of operation. And safety. In addition, the sulfur, nitrogen, and water components can be fully supplied to the furnace, so based on the above reasons, dioxins can be reduced with good efficiency. At this time, 'in the furnace, the furnace exit, or the chimney The SOX concentration of the exhaust gas depends on the combustion conditions such as the temperature in the furnace, the amount of sulfur-containing component powder supplied to the sludge supply pipeline or the waste supply official line, etc., so it can be used as dioxins Production index. That is, monitor the SOx concentration value within the specified range.

521138

= ^, The outlet 'or the sox concentration of the smoke can be determined for combustion $ = Γ The amount of sulfur-containing component powder required for the current stable combustion conditions, and the efficiency of W1 inhibits the production of harmful gases such as dioxins . ., ', I only have this effect, only set the sox concentration meter in the furnace, out of the furnace: "Chimney can be used." $ Special modifications are required to achieve this at a lower cost, but this aspect is not affected by the following The drawings are used to illustrate the limitations of these descriptions in more detail. An example of a waste disposal device at the 2010 exhibition. This treatment = is equipped with a waste storage tank 201, a sludge storage tank 202, a sulfur powder storage ^, and an incinerator 204, and a waste supply pipeline is connected between the waste storage tank 201 and the incineration =, and 204 2005 is used to supply the waste in the waste 1 storage tank 201 to the incinerator 204, and a sludge supply line 206 is connected between the sludge storage tank 1 and the incinerator 204 It is used to supply the sludge in the storage tank 202 to the incinerator 204, and a sulfur powder supply line a? Is connected between the sulfur powder storage 202 and the sludge supply line 202. The sulfur powder in the sulfur powder storage tank 203 is supplied to the incinerator 204. #In this example "The sludge in the sludge storage tank 202 is pressure-fed from the sludge storage tank 202 = a pump (not shown) to reach the incineration through the sludge supply line 206 =, 204. At this time, the sulfur powder pressure-fed from the sulfur powder storage tank 203 is supplied into the mud supply line 206, and after being transferred downstream, the sludge and the sulfur knife are mixed with each other to form a uniform property and are supplied. In the incinerator 204. Due to the arrangement as described above, the danger of non-uniformity in the furnace or dust explosion caused by the direct supply of sulfur powder to Lune can be avoided.

V. Description of the invention (39) Maintain the sulfur and nitrogen in the furnace, and-reduce dioxin. Because of the operation. Under the conditions of ίΐΓ, the supply operation of sulfur and the supply of Di and 5 mud were started together with good efficiency and convenience. " ,,, Γ can be used to establish the simplicity of operation. However, in this case, the sludge is supplied for recognition as powder, and it is mainly sulfur-containing and is not limited. It can be used suitably. For example, the slurry is the same. Although the example of connecting the sulfur powder paper feeding bus is shown in this figure, it is also possible that the second and second lines are connected to the π mud supply pipe pipeline, and it is also disclosed in this case; IL 2 2 = Pipeline and waste supply become uniform (mixture) to supply to the heartburn: J sulfur powder mixed with each other = effect. Furthermore, it is simpler than this example: the same line as the above case can be used for water supply lines, etc. Fig. 11 shows another example of the waste treatment device of the present invention. In this case, a moving bed incinerator 214 is connected to a waste milk treatment device 222 and an exhaust gas treatment device 222 is connected to a chimney 2 24. In addition, a waste storage tank 211 and an incinerator 214 are connected. A waste supply line 215 is connected between the waste storage tank 211 and the incinerator 214, and a sludge supply line 21 6 is connected between the sludge storage tank 212 and the incinerator 214. It is used to supply the sludge in the sludge storage tank 21 2 to the incinerator 214, and a sulfur powder supply line 21? Is connected between the sulfur powder storage tank 213 and the sludge supply line 216, and is used to supply the sulfur powder. Storage tank page 45 521138 V. Description of invention (40) 213 The sulfur powder is supplied to the incinerator 214. Furthermore, a SOx concentration meter 220 is installed in the aforementioned smoke_224, and a concentration detection signal from the SOx concentration meter 220 is input to a control device or a measuring device 221. In this example, as described above, the sulfur-containing component powder supplied to the sludge supply line 206 is sufficiently mixed with the sludge in the sludge supply line 206 to form uniform properties and is supplied. In the incinerator 21 4. The above-mentioned sludge and the waste supplied from the waste storage tank 211 through the waste supply line 215 are dried by the sand layer fluidized by the air (sent from the air box 225 located below the dispersion plate 2 18). Heat up and catch fire. The burning waste is burned in the remaining width 'to complete its complete combustion. The exhaust gas is discharged from the smoke 2 2 4 after being processed by the exhaust gas treatment device 2 2 2. Based on the concentration detection signal from the SOx concentration meter 220 provided in the chimney 224 described above, the control device or the measuring device 2 21 is used to determine the sulfur content powder so that the SOx concentration in the chimney can be within a specified range. Of supply. Specifically, if the SOx concentration is too low, the supply amount of the sulfur-containing component powder is increased, whereas if the SOx concentration is too high, the supply amount of the sulfur-containing component powder is reduced. In this aspect, the appropriate SOx concentration of smoke is 50 to 400 ppm. If the SOx concentration of the chimney is lower than 50 ρριη, the effect of dioxin suppression is not satisfactory, and if it exceeds 40Oppm, the SOx concentration cannot reach the specified value. Also, as shown in Figure 11, because the white smoke from the upstream of the smoke letter prevents air from converging in the exhaust gas pipeline, etc., and has an effect on the sox concentration of the chimney, for example, the method of converting 12% of oxygen is used to estimate The concentration is sufficient. Moreover, in the case of performing automatic control, it is sufficient to add this concentration value to the operation parameter item.

88120517.ptd Page 46 521138 V. Explanation of the invention (41) Again, although the SOx concentration meter is set in Yanzi in this example, it is also possible to install the SOx concentration meter in the furnace 214 or the furnace outlet 219, and The supply amount of the sulfur-containing component powder is controlled in such a manner that the SOx concentration in the furnace or the furnace outlet can be within the specified range (preferably both in the range of 60 to 600 ppm). Furthermore, although an example using a fluidized bed incinerator is shown for the incinerator in this figure, it is not limited to this example, and may be applied to a grate incinerator or the like. As explained above, according to this aspect, in the treatment of waste mixed with sludge by incinerators, it can effectively supply sulfur powder in a stable state, which is used to supplement the effect of reducing dioxin. Those with sulfur concentration. Furthermore, since the combustion condition in the furnace can be judged based on the furnace, the furnace outlet, or the smoke 2S0x concentration, it can be determined that it can more effectively reduce the sulfur-containing components required for the realization of stable combustion conditions for the purpose of dioxins. Supply of powder. The best aspect 8 This aspect provides a waste treatment method in which waste is mixed with sludge and / or sulfur-containing components in a waste incinerator to disperse the sludge and / or sulfur-containing components to Disposal method characterized by being supplied to a garbage hopper. Furthermore, the present aspect provides a waste treatment device for co-firing waste with sludge and / or sulfur-containing components in a waste incinerator, and is provided for dispersing sludge and / or sulfur-containing components to The bulk supply mechanism provided by the garbage hopper is a processing device featuring the characteristics. The following describes this aspect in detail. In this aspect, borrow-has the ability to homogenize sludge and / or sulfur content

88120517.ptd Page 47 V. Description of the invention (42) Decentralized supply of knife supply function ^ ^ ^ ^ ^ ^ Evenly distributed to the garbage disposal A / Ni and / or sulfur-containing components ,, n is / Ten people fight. To disperse the supply device, the main sulfur components are dispersed on the garbage hopper. Conveyors, M0-N0 pumps, and bone movements. For example, a screw bearing β moving machine, or a combination thereof may be mentioned. = Preferably, in the case of sludge and / or sulfur-containing components, the waste hopper is already supplied with waste. Political supply, · σ When the sludge is distributed and supplied, the sludge permeates and disperses because it is scattered in the weight of the garbage hopper, and it is evenly distributed with the combustibles contained in it ... It is also available for the shogun, and the sun splash, ΐί;:! The part with extremely low heat generation or the part with high water content is generated. ^ The large target area can be stably burned to prevent the occurrence of radon. : = The dispersive supply device for the dispersive supply of mud and / or sulfur-containing components, which is 0 m in diameter, uses a kind of sludge and / or sulfur-containing components and gas: mouth 1 j garbage feed hopper dispersed supply The blowpipe. A blow pipe using an empty # ^ 2, etc. as the carrier gas can be used to make the sludge and / or sulfur-containing components [, the carrier gas together more evenly and effectively dispersed in the garbage hopper. Widely = The waste and sludge and / or sulphur-containing components are dispersedly supplied to the garbage plus 1 hopper from the dispersion supply device. It is better to implement this at the timing of the waste crane to enter the waste hopper. Decentralized supply. The waste that is usually stored in the garbage is supplied to the garbage hopper by a garbage crane at designated intervals determined appropriately. In the field where the amount of waste in the garbage hopper is small Page 48 521138 V. Description of the invention (43) If the sludge and / or sulfur-containing components are continuously supplied, it is equivalent to the Θ sludge and / or sulfur-containing components The components are supplied in an incinerator. In addition, when the crane puts waste into the garbage hopper, if the sludge and / or sulfur-containing materials are continuously supplied, sulfur-containing components or waste may be scattered around the garbage hopper. . Therefore, when the timing of coupling waste into the garbage hopper is driven, the decentralized supply device can be driven to supply an appropriate amount of mud and / or sulfur-containing components with good efficiency. For example, the distributed supply device can be driven by the following method. (1) The waste starter is used to supply waste to the waste and to disperse and supply a certain amount of sludge and / or sulfur-containing components. For (2) the amount of waste in the garbage hopper is sensed by a sensor, and the most suitable amount of waste in the garbage hopper is dispersedly supplied in a manner that the pollution and / or sulfur-containing components can be uniformly mixed. Sludge, etc. (1) When the waste starter supplies waste to the waste hopper, the supply of sludge and / or sulfur-containing components. U) The weight 1 sensor senses the weight of the waste that is thrown into the garbage plus the second bucket by the garbage starter, and after the waste is input, the combined amount of sludge and / or sulfur-containing components is dispersedly supplied. You can also use a combination of methods such as 垔 里 适 ^. In addition, it is not limited to the above method, and other methods may be adopted to implement the decentralized supply in accordance with the timing of the waste input bucket. , The above-mentioned method of dispersed supply of sludge and / or sulfur-containing components: at least the shutdown of the incinerator on January 1! Stopped hours ago. Before the burning of the crane, the crane began to adjust the operation from a few hours before it stopped operating, and began to reduce it. 88120517.ptd Page 49

II 521138 V. Description of the invention (44) f The amount of waste input. During this period, if the sludge and / or sulfur-containing components continue to be supplied, the following disadvantages will occur ... That is, the sludge will continue to be supplied, and, together, it is expected that the overall calorific value will decrease, resulting in Burning scorch ^ change to pay no son-in-law, and in the case of continuing to supply sulfur-containing components, the combustion ratio of sulfur-containing components in the incinerator will increase, and the exhaust gas will rise by 7 degrees. When the supply of sludge and / or sulfur-containing components by means of a dispersed supply device is stopped at least 1 hour before the incinerator is stopped, the instability of the incinerator as described above can be avoided, and the unstable combustion state of the incinerator can be prevented = Stop turning. Knowledge-based magic The invention is described in further detail below with reference to the drawings. Fig. 1_2 is a schematic view showing an example of a waste disposal device according to the present invention, a part of a waste hopper of a second waste incinerator. The waste is put into the garbage hopper 3002 from the garbage yttrium heavy machine 301. On the other hand, the sludge and / = 4 sulfur and Λ matter pass from the sludge and / or sulfur-containing component introduction port 305 through the conveyor 304 as Scattered on the waste in the waste hopper 302. Then, the sludge infiltrates the waste in the waste hopper 3002 due to its own weight, so that the combustible materials, water, etc. contained in the waste are uniformly mixed with the waste. The two j ^ materials are evenly dispersed on the waste in the waste hopper and mixed with the waste β ^, and sometimes the sulfur-containing components of the household are also supplied at the same time due to the supply of waste to the furnace. In the furnace. In this way, the sludge indicator and the waste are placed in the furnace from the garbage chute 3 ° 3 (not shown in Fig. 13 is a schematic diagram showing another example of the waste treatment device of the present invention, 521138 V. Description of the invention (45) The waste hopper part of the waste incinerator is shown therein. Like the processing device shown in FIG. 2, waste is put into the waste hopper 302 from the waste crane 3 (n. On the other hand, sludge and / or containing The sulfur component is introduced from the sludge and mash or the sulfur-containing component introduction port 305, and is transported together with the carrier gas (from the carrier gas supply port 307 supplier) from the blowing pipe 30 6 to be dispersedly supplied to the waste hopper 302 In this way, the sludge and / or sulfur-containing components are dispersed on the waste in the waste hopper 302 within a wide range with good efficiency. At this time, in addition to the carrier gas, air, CO2, and nitrogen can be used. The exhaust gas recirculation gas can be used, and the flow rate is the same, which is mainly within the range where the sludge and / or sulfur-containing components can be dispersed, and it is not particularly limited. Then, the sludge penetrates due to its own weight. Garbage feeding hopper within 302 = The waste is mixed uniformly with the combustibles, water, etc., and the waste is uniformly dispersed on the waste in the waste hopper: together with the waste, the waste chute is discharged into the furnace from the waste chute (303). (Not shown) supply. Waste sludge sludges that are co-fired with waste water can be used as sludge generated during sludge treatment at the sewage and organic wastewater produced by activated sludge. Sludge generated when solid-liquid separation of organic-containing waste water? In the case of: Chuan Shuye Ϊ or similar conditions in closed waters, etc., optionally, the sludge produced in the process of sewage treatment, dilute Ϊ, 种类Sludge. The moisture content of the sludge is not acceptable; it is used in the usual range such as 1. ~ _ and other water-containing sludge to the limit '^ ^ ί) 5 ^ t ^ t, MG waste wheel month. Specialized rubber system Waste, etc., optional sulfur content

Page 521138

In the case of rubber wastes such as waste tires such as water + government # 5, it is necessary to perform the operation in consideration of heat generation. In addition, the above-mentioned sludge and sulfur-containing components can also be used in combination. In this example, the method of the incinerator is not restricted in any way, but can be used in: moving bed incinerator, grate incinerator, kiln incinerator, etc. The temperature of the combustion chamber and the sludge and / or sulfur-containing components can be set within a normal range. Specific examples are disclosed below to further illustrate the present invention. (Example 1)-A grate-type incinerator was used for the waste incinerator, and the municipal solid waste and sludge were mixed and burned in accordance with the method of the present invention. First, the sludge is mixed with the air, and a blow pipe having a function of dispersing the sludge is used to supply the sludge to a waste hopper in which waste is put in advance. In this case, c02 was used as a carrier gas for sludge transportation. Municipal waste has a calorific value of 2300kcal / kg and its sludge content is 80%. The temperature of the drying section is changed within the range of 700 to 850 C, and the mixed combustion of municipal waste and sludge is performed under the temperature change of the combustion chamber within the range of 85 to 10,000 ° C. Compared with the case where the sludge is separately input from a separate chute, the average CO concentration is reduced to less than half, and the dioxin concentration is also reduced by 30%. The furnace can be operated under stable conditions during incineration, but no abnormal conditions were found in the exhaust gas concentration and ash state. (Example 2)

521138 V. Description of the invention (47) Use a grate type incinerator for the waste incinerator and use the method of the present invention to co-fire the municipal waste and sulfur-containing components of the waste. First, sulfur powder is used for the sulfur-containing component, and a blow pipe having a function of dispersing the sulfur-containing component is used to supply the sulfur-containing component to a waste hopper in which wastes are pre-filled. In this case, C02 was used as a carrier gas for carrying a sulfur-containing component. Municipal waste has a heat of 23,000 kcl / kg and its sulfur content is 80%. 700 ~ 850. (: Change the temperature of the drying section within the range and change the temperature of the combustion chamber within the range of 850 ~ 1000t: Mixing of municipal waste and sulfur powder is performed. The result is different from that of municipal waste and sulfur powder. Do not use the separate chute for comparison. The average CO concentration is reduced to less than half, and the dioxin concentration is reduced by 20%. During the incineration, the furnace operation can be performed under stable conditions, and the exhaust gas concentration and ash state No abnormal condition was found. As explained above, the method and device provided in accordance with this aspect are to enable sludge and / or protection, separation of materials and municipal waste, etc., while maintaining a certain state of combustion in the incinerator. The waste is reduced by co-firing with good efficiency; | The method and device for treating dioxin-type waste in the waste rail. In this aspect, sludge and / or sulfur-containing components and waste can be used. Evenly supplied to the garbage hopper, the sludge and / or sulfur-containing components and waste can also be uniformly supplied in the furnace. Therefore, the combustion is safe in the area where the incinerator does not generate extremely low heat generation. As a result, the result is that the moon dagger can reduce the generation (amount) of dioxin in the exhaust gas with good efficiency. According to this aspect, the co-firing method of sludge and / or sulfur-containing components and waste is not only applicable to It is also possible for a conventional fluidized bed incinerator

88120517.ptd Page 53 V. Description of the Invention (48) :::: Known furnace grate incinerator and other optional incineration industries have high industrial value. This is the best aspect9,-ί: / 样 + Provides a waste treatment method that uses a waste incinerator of a furnace to make waste 蛊 / chemical and / or co-fires sulfur-containing components废弃物 The waste treatment method in which the sulfur-containing components of the plant are dispersed and supplied to the drying section furnace is a special Ϊ. Yanggong Gouyu wants to provide a waste treatment device for the incineration of waste using furnace grate.

The furnace is dedicated to the depleted mud and / or sulfur-containing components dispersed by the J furnace. The following is a detailed description of this aspect. $ 词 She buried heartily. Baxi 5: 5 t & It has a dispersive supply for the function of sludge and / or sulfur-containing components. It can be evenly dispersed and supplied to the furnace-type incineration M., and / or 3 sulfur components. On the grate in the drying section of the furnace. For the purpose of dispersing the # a #, it mainly has the function of making sludge and / or knife on the grate in the installation section. Due to the limitation, the optional fraction can be used in the case where the sludge is distributed and supplied, and the waste in the drying section of the furnace is dried. It will catch fire soon after drying due to its own weight. In sulfur containing Cheng Cheng itself is also dried, and the waste in the drying section of the grate is the same, and it is evenly dispersed in the dry to burn. Therefore, it can be burned after drying with the waste without being caused. Because of the sludge and waste ': Stabilize and mix everything in the low temperature area, and the following will not happen) 21138

= The sludge before incineration is from the ash chute below the grate of the pressure air hole of the furnace E. "% Is the sludge and / or sulfur-containing components from the device, preferably Λ is used for a uniform supply of dispersed supply of 舻, B-like, alder species can make sludge and / or sulfur-containing components ^ Combined: For dry blower, the blower tube is supplied in a distributed manner. When blower tube is used and ^ empty louse, CO2, etc. are the carrier gas, sludge and / or = can be effectively dispersed in the drying furnace ... Press again, In the present invention, the middle knife, / deficiency, and / or sulfur-containing components are dispersedly supplied to the grate in the drying section, but in the case where the high-temperature field in the furnace makes the surface temperature of the blowing tube high, it is preferable that the outside of the blowing tube The cooling structure is provided. The dispersed supply of sludge and / or sulfur-containing components to the grate in the drying section should preferably be stopped at least 1 hour before the incinerator is stopped. The incinerator is usually counted from the number before the operation is stopped. The operation adjustment is started from the hour to reduce the amount of waste input. During this period, if the sludge and / or sulfur-containing components are continuously supplied, the following disadvantages occur: that is, when the sludge is continuously supplied, It is expected that the amount of heat generated by the whole will decrease, which will cause the combustion state to become Stability; in the case of continuing to supply sulfur-containing components, the combustion ratio of sulfur-containing components in the incinerator will increase, so that the SOx in the waste will increase. At least when the operation of the incinerator is stopped, When stopping the supply of sludge and / or sulfur-containing components by dispersing the supply before 1 hour, the above-mentioned problems can be avoided, and the unstable combustion state of the incinerator can be prevented until the operation is stopped. The present invention will be described in further detail with reference to the drawings.

V. Description of the invention (50) Figure 1 Figure 1 of the waste type waste treatment device-the example is omitted to the drying section of the furnace grate 2 hopper 401 and then sent to the garbage slide coffee = 2 points. And / or sulfur-containing components. In this way, the dirty people move: and the waste effect leather which is distributed and supplied to the drying section furnace, and is scattered on the drying section furnace_3 in the surrounding, in addition to the use of air, c02, nitrogen, etc. in the wide-loading gas: Gas recirculation gas, etc., its preferred flow rate is sufficient to make the sludge two sulfur-containing, the amount of dispersed matter without affecting the amount of combustion in the furnace. 5 徂 2 The dispersion of T mud and / or sulfur-containing components on the drying section furnace 403. Although: In the incinerator shown in the figure, it is placed in the waste. . The sludge and / or sulfur-containing components may also be supplied to the drying furnace grate 403 in the same manner as the blow pipe provided along with the moving 828. Evening: J later penetrated into the drying furnace grate 403 due to its own weight, so that the combustible materials, water, etc. were evenly mixed with the waste, and the other two, the components were evenly dispersed in the drying furnace. The above waste is mixed with ^ discard, both sentences are mixed. In this way, by using the air 406 and the radiant heat of the furnace 2 sent from below, the mud and / or sulfur-containing components are dried together with the waste and caught fire. At the beginning of the combustion, the sludge and / or sulfur-containing components and waste are transported to the grate 404 of the combustion section, and the air 406 is burned from below. The unburned part is sent to the post-combustion section. On the grate 4505, 521138 V. Description of the invention (51) to make it completely burned, and the allowance left after incineration is from the outside. The remaining ash is from the main ash chute 41. The taken combustion treatment is performed in the main combustion chamber 411. The forging is performed by γ # corpse- ^ m ^ ^, the combustion exhaust gas (furnace gas) is burned for a long time to 412 yoke row after secondary combustion so that it is not intruded, the combustion exhaust gas is discharged. Outside the furnace, and & detailed π / · ", ^ °. Good illustration) and so on. And it is transported to the exhaust gas treatment equipment (not treated = sample: in order to sludge washed with waste can be used with The organic waste water through the sewage, the mud under the water, and the urinary mud after passing through the activated sludge has passed through the active sewage = :; the redundant, organic-containing wastewater is separated by solid-liquid: produced-during the dredging or similar situations The "grown" in the closed water area is "sludge," and other types of sludge produced during the water treatment process. The moisture content of the sludge has not been particularly used in the usual range. (Such as 10 ～ g 0%, etc.) Watery sludge.

In addition, powdery, liquid, and solid = sulfur components can be used for sulfur-containing components. However, it can be transferred without risk of explosion, etc. In addition, the sludge and sulfur-containing components described above can also be used. Ingredients are used. ^ A. In this state, the temperature of the drying section and the temperature of the combustion chamber are not particularly limited. The temperature of the drying section and the temperature of the combustion chamber within the normal range can be ^^ Good efficiency makes the sludge And / or mixed burning of sulfur-containing components and waste. Λ Specific examples are described below to further explain this aspect. (Constant Example 1) A grate-type incinerator as shown in FIG. 14 is used to follow this aspect. P.57 521138 V. Description of the invention (52) Municipal solid waste and sludge are mixed and burned. First, the sludge is mixed with nitrogen, and a blow pipe with a function of dispersing the sludge is used to disperse the sludge. The sludge is supplied to the grate in the drying section. At this time, C02 is used as the carrier gas for sludge transportation. Municipal waste has a calorific value of 200 kcal / kg and its sludge content is 80%. Change the temperature of the drying section in the range of 850 ° C and In the range of 100 ° C, the mixed burning of municipal waste and sludge is performed under the temperature change of the combustion chamber. As a result, compared with the case where no mixed burning of municipal waste and sludge is performed, the average CO concentration is reduced to less than half, The average concentration of dioxin also decreased by 70%. During the incineration, the furnace can be operated under stable conditions, but no abnormal conditions were found in the concentration of exhaust gas and the state of ash. (Example 2) Use Figure 1 4 The grate-type incinerator shown is used to co-firing municipal solid waste and sulfur-containing components in accordance with the method of the present invention. First, sulfur powder is used for the sulfur-containing component, and a sulfur-containing component is used. The blowing pipe with the function of dispersing materials supplies the sulfur-containing components to the grate in the drying section. At this time, CO2 is used as the carrier gas for carrying the sulfur-containing components. Municipal waste is a material with ordinary composition. Under the usual test conditions, mixed burning of municipal waste and sulfur powder was performed. As a result, compared with the case where mixed burning of municipal waste and sulfur powder was not implemented, the average CO concentration was reduced to less than half, and the concentration of dioxin was reduced by 50%. During incineration may be performed under stable operating conditions of the furnace, and the ash in the exhaust gas and the concentration of the state of the condition is not found to be normal. ^ As described above made of, in accordance with the present invention a method and apparatus is provided,

88120517.ptd Page 58 521138 V. Description of the invention (53) The sludge and / or sulfur-containing components and municipal waste can be used in a good condition while maintaining the combustion condition in a certain grate incinerator. Treatment method and treatment device for efficient mixed burning to reduce dioxin-like waste in exhaust gas. In this aspect, because sludge and / or sulfur-containing components and waste can be uniformly supplied to the grate in the drying section, the combustion is stabilized in the incinerator in an area where its heat generation is not extremely low. As a result, it is possible to reduce the generation (amount) of dioxin in the exhaust gas with good efficiency. According to this method, the method of co-firing sludge and / or sulfur-containing components and wastes is likely to be applied to a grate type incinerator, and therefore has a high industrial value. The best aspect 10 About this aspect, the inventors of this case found that during the various tests of waste incineration, the dioxin was burned in the exhaust gas when the waste was mixed with sludge such as sewage sludge. The fact that the content of the class will decrease. Therefore, the inventors of the present case have conducted various studies on how the effect of dioxin reduction caused by sludge co-firing is produced. Regarding the production of dioxins caused by the incineration of wastes, it is known that the combustion state of wastes in an oxygen-deficient atmosphere is one of the main reasons for the generation of dioxins, and the combustion conditions in this state are equivalent to those in an incinerator. The conditions of the initial combustion stage when the waste is heated up. It can be inferred that the substances produced by the thermal decomposition of sludge during the initial combustion stage have the effect of inhibiting the production of dioxins. Therefore, in view of the fact that the nitrogen content of general sludge is as high as 2 to 10 wt% (on a dry basis), it is believed that the substance having the effect of inhibiting the production of dioxin may be

521138

An experiment was performed on the thermal decomposition products of the three rat components in the sludge. In the experiment, as a result of adding nitrogen compounds to the waste to perform incineration, it was found that the dioxin (amount) in the combustion exhaust gas was reduced. It can be inferred that the substances that inhibit the production of dioxins are ammonia (NH3) or compounds with nh2 groups produced by thermal decomposition of nitrogen-containing components in sludge. The mechanism by which the thermal decomposition products of nitrogen-containing components can inhibit the production of dioxin has not been determined in the month, but it is speculated that these substances have a toxic effect on copper or other substances that act as catalysts for dioxin generation reactions. To.

This toxic effect may be one of the reasons that the thermal decomposition product inhibits the production of dioxins. In this way, it is thought that the above nitrogen compounds of the thermal decomposition products of sludge have a suppressive effect on the production (reaction) of dioxin when burning waste. Therefore, it is confirmed that dioxin can be suppressed by adding nitrogen compounds to the waste and burning it. The facts of this kind.

In addition, in this aspect, the problem of generating dioxins in the exhaust gas flow path after the incinerator exit is also studied, and a method for suppressing the generation of dioxins has been found as described below. It is generally believed that in the exhaust gas flow path, a certain component in the fly ash acts as a catalyst to promote the reaction of unburned aromatic compounds with chlorine to generate dioxins. Therefore, in this case, a test of the exhaust gas flow path after the blowing of the nitride into the incinerator outlet was also carried out. As a result, the amount of dioxin in the exhaust gas was reduced. The reason for this reduction may be the same as the case where the nitride is loaded into the incinerator, which is caused by the nitrogen compounds blown into the exhaust gas flow path to suppress the generation of dioxins. In this way, nitrogen compounds are installed in the incinerator and also in the exhaust gas flow path.

Page 60 521138 V. Description of the invention (55) When nitrogen compounds are used, the amount of dioxin produced in both places will decrease, and the dioxin (content) in the combustion exhaust gas can be further reduced. This aspect is designed based on the knowledge based on the results of the above = experiments and research. The first complaint of this sample is the method of 'increasing nitrogen compounds into wastes and loading them; ^ a method of incineration of wastes characterized by the combustion waste gas flow path after burning the furnace and blowing nitrogen compounds into the exit of the incinerator. In the form of "f", since nitrogen compounds are loaded into the waste gas to be charged into the incinerator and the waste gas flow path of the combustion gas, as described above, two places (i.e., inside the incinerator and the flow path of the combustion gas ) Of the Dioxin class. As a result, dioxins in the combustion exhaust gas can be greatly reduced. According to "in this aspect", the outlet of the incinerator refers to the outlet of the secondary combustion chamber. Furthermore, “sludge” refers to sewage sludge, fecal urine sludge, organic wastewater produced by sludge treatment, sludge produced by organic matter-containing wastewater after solid-liquid separation, and In terms of sludge generated during river dredging in waters. > Further, the "nitrogen compound" means an organic compound or an inorganic compound containing nitrogen. Specific examples of preferred nitrogen compounds include ammonia, urea, and the like. The nitrogen compound may be used in the form of a gas, a liquid, a solid, or an aqueous solution ', but an appropriate form of the nitride is selected depending on the place where the nitrogen compound is added. The second aspect of this aspect is the incineration method in which the waste gas flow path after the sludge and waste are charged into the incinerator and nitrogen compounds are blown into the incinerator outlet is a characteristic waste.

Page 521138

V. Description of the invention (56) In this invention, incineration of sludge and waste is carried out. The effects of dioxin can be inhibited by incineration of Γ, Γ, and Γ. As the mud blows into the combustion exhaust gas flow path, it can suppress the generation of dioxin in the incinerator and the combustion road. In addition, waste incineration and pollution are usually carried out separately in dedicated incineration equipment, but (this invention is cheap because the waste and sludge are incinerated together, one can save one, save equipment costs and operate The third aspect of this aspect is the feature of adding nitrogen compounds to waste and / or sludge at the time of waste and sludge loading " °

Incineration method. ~ Fruit matter In this aspect, nitrogen compounds are added to the waste or sludge being charged, or both. Because the 5 sludges under the incineration process are clays with a high water content (90% by weight) even after dehydration treatment, if a large amount of this dewatered sludge is charged, ^, Poor burning condition. Therefore, it may not be possible to load sludge with a nitrogen content as the purpose. In this case, by adding additional nitrogen compounds at the mouth = ^ to supplement the insufficient nitrogen amount, the dioxin produced in the incinerator can be greatly reduced in a burning state like y.

^ Mixing waste with sludge in a waste incineration plant produces the aforementioned cost-saving benefits. The fourth aspect of ίf is characterized by the fact that Yanshi has a mechanism for adding gas compounds to the incinerator station and a mechanism provided for nitrogen compounds • ..., exhaust gas flow paths. Waste incineration equipment.

521138

According to this aspect, since nitrogen compounds can be added to the waste, the amount of dioxin produced in the f k furnace can be reduced. Furthermore, since nitrogen compounds can be blown into the combustion exhaust gas flow path, the amount of dioxin produced in the combustion exhaust gas flow path can be reduced. A fifth aspect of the present aspect is that a mechanism for adding sludge to the incinerator is provided with a mechanism for adding nitrogen compounds to the mechanism for loading the sludge, and a mechanism for adding nitrogen is provided. A waste incinerator featuring a mechanism for blowing compounds into the combustion exhaust gas flow path. According to this aspect, since the dioxin produced in the sewage incinerator can be added to the sludge to be loaded into the furnace, the amount of nitrogen introduced to suppress the generation of dioxin can be achieved. In addition, there can be benefits from waste costs. The sludge is put into an incinerator and the suppression effect is obtained. In addition, because the nitrogen content of the sludge that can be filled with nitrogen compounds is insufficient, the mixed burning of the incinerator and the sludge can be supplemented to save a. In the above aspects of the present situation, nitrogen The place where the compound blows into the flow path of the combustion exhaust gas is mainly set at the exit of the incinerator to the smoke country, but it is particularly preferable that the fly ash containing the catalyst component is set before the dust collector is captured. Upstream premises. FIG. 15 is an explanatory diagram showing a first example related to the embodiment of this aspect. The incineration equipment shown in this figure is a person with a grate type incinerator. In the figure, 5 is a grate type tearing furnace, and 511 is a waste hopper, which is used to load the waste. Inside the furnace, 515 is the exhaust gas treatment process. The gas treatment process 515 uses a boiler, a gas cooler, and the like to cool the gas, remove the acid gas, and collect dust.

Page 63 521138 V. Description of the invention (58) In addition, a device 5 5 0 is provided for the equipment attached to the incinerator 5 10 to add nitrogen compounds to the waste loaded in the 5 10 incinerator. This compound adding machine is configured to form a structure with urea (ie, a nitrogen compound), a liquid storage tank 551, a urea supply pump 552, and a urea spray nozzle tube 553. In addition, the equipment attached to the exhaust gas treatment process 5 1 5 is provided with a mechanism 5 7 0, which is used to blow nitrogen compounds into the flow path of the combustion exhaust gas. This nitrogen compound blowing mechanism 570 forms a structure having an ammonia gas storage tank 571, a flow rate regulator 5ΰ72, a 入 ^ and a spray nozzle tube (not shown). 'In the combustion chamber 512 of the incinerator, a drying section furnace t513a, a combustion section furnace t513b, and a post-combustion section furnace 513c each having a conveying core are provided in stages. It is designed so that the inside of the combustion chamber 512 can be divided into a region (drying zone) mainly filled with the ^, so that the dried waste is burned, and post combustion is performed to ash the waste sent in the combustion state. Area (post-combustion zone). In the waste incineration equipment according to the above structure, the waste is sprayed with :: Ξ 5 V, and the waste is sprayed with urea combustion chamber_ from the urea spray nozzle pipe 553. The amount of air supply for the second combustion in the combustion chamber: Operation: The furnace in the second stage is said to implement restricted combustion. This is not completely eliminated = ^ Knife occurs in the oxygen-deficient state of the flammable compound and the gas & > ^ 2: Right, the conventional technology will cause aromatic reactions and Gu easily produces dioxins, but in the present invention 521138 V. Description of the invention (59) In one embodiment, ammonia (NH3) or a compound having an NH2 group is generated due to the thermal decomposition of urea added to the waste, which can inhibit the above-mentioned dioxin generation reaction. Since the combustion exhaust gas generated in the combustion chamber 512 contains the combustible gas generated in the drying section furnace 5 1 3 a and the combustion section grate 51 3 b, the air is blown into the secondary combustion chamber 5 1 4 to exercise. Secondary combustion treatment for combustible gas combustion.

Secondly, the combustion exhaust gas discharged from the secondary combustion chamber 514 is sent to an exhaust gas treatment process 515, and after cooling treatment, harmful gas removal treatment, and dust removal treatment, it is released from the chimney 516 and dispersed. At this time, the ammonia gas supplied from the gas storage tank 5 71 is blown into the above-mentioned various devices for performing exhaust gas treatment or a flue to which each device is connected. Due to the blowing of this ammonia gas, the dioxins generated in the flow path of the combustion waste gas can be reduced. As described above, the nitrogen compounds are charged into the incinerator and the exhaust gas flow path, thereby reducing the amount of dioxin produced in the two places (the incinerator and the exhaust gas flow path).

FIG. 16 is an explanatory diagram showing a second example related to the embodiment of this aspect. In FIG. 16, parts having the same structure as those in FIG. 15 are given the same reference numerals, and descriptions thereof are omitted. In this embodiment, a sludge supply mechanism is additionally provided for the equipment attached to the incinerator, so that the sludge can be put into the waste hopper 511 together with the waste. In the figure, 540 is a sludge feeder. Furthermore, it is an equipment attached to the exhaust gas treatment process 5 1 5 and is provided with a mechanism 5 70 which is used to blow nitrogen compounds into the flow path of the combustion exhaust gas. In the waste incineration equipment according to the above structure, the waste and sludge to which the waste feed 511 is put are all sent to the combustion chamber 5 丨 2. In the combustion chamber

Page 65 521138 V. Description of the invention (60) '----- Within 512, the waste and sludge are cremated and discharged through various steps of drying, burning and post-combustion. At this time, as mentioned above, ammonia (NH3) or compounds having NH2 groups can be suppressed because the nitrogen-containing components contained in the waste / depleted mud loaded with the waste are thermally decomposed during the drying process or at the beginning of the combustion process. The above-mentioned dioxin-like formation reaction. Therefore, the dioxin content in the combustion exhaust gas generated by the combustion chamber 512 can be reduced. … The combustion exhaust gas generated in the combustion chamber 512 is the same as that in the case of the equipment of FIG. 15, and is sent to the exhaust gas treatment process 5 丨 5 through the secondary combustion chamber 514. Here, the ammonia supplied by the Zhen τ rolling tank 5 71 Blow into it. Due to this blowing of ammonia gas, the dioxins produced by the combustion gas flow path can be reduced. As described above, since the sludge is loaded into the incinerator together with the waste and nitrogen compounds are blown into the exhaust gas flow path, it is possible to suppress the generation of dioxins in two places (the incinerator and the exhaust gas flow path). FIG. 17 is an explanatory diagram showing a third example related to the embodiment of this aspect. In FIG. 17, parts having the same structure as those in FIG. 15 or FIG. 16 are given the same reference numerals, and descriptions thereof are omitted. In this embodiment, in addition to the structure shown in Fig. 6 ', a nitrogen compound adding mechanism 560 is attached, and is used to add nitrogen compounds to the sludge feeder 540. The nitrogen compound adding mechanism 56 forms a structure having a hopper 561 for storing urea powder and a urea feeder 562. In addition, the equipment attached to the exhaust gas treatment process 51 5 is provided with a nitrogen compound blowing mechanism 5 7 0 ′, which is used to blow nitrogen compounds into the combustion exhaust gas flow path. In the garbage incineration facility having the above-mentioned structure, waste is put into a waste hopper 511, and sludge is supplied from a sludge supplying machine 5-40. When the sludge is supplied, urea powder is supplied from the urea supplier 562 to the sludge supplier 540, and

88120517.ptd Page 66 V. Description of the invention (61) — " '----- The sludge containing this urea is put into the waste hopper 5 丨 丨. Secondly, the sludge and waste added to the service are sent to the combustion chamber 5 丨 2. ^ In the chamber 512, the waste and sludge are dried and ashed and discharged. In this case, as mentioned above, ammonia and dragon (3) or ammonia are produced by thermal decomposition of the nitrogenous component in the dagger and the urea added in the drying process or the initial stage of the combustion process. Compounds having NH f can suppress the above-mentioned dioxin-forming reaction. Therefore, 2, Tanaka Tianmin; > The content of dioxin in the combustion exhaust gas produced by the combustion chamber 51 2. The combustion exhaust gas generated in the combustion chamber 51 2 is the same as that in the case of the equipment in FIG. 5. After the secondary combustion chamber 514 is sent to the exhaust gas treatment process 515, the ammonia gas supplied from the gas storage tank 571 is blown here. Into. Due to the blowing of this ammonia gas, the amount of wear caused by the flow path of the combustion exhaust gas can be reduced. As described above, since the urea is added to the sludge when the sludge is loaded into the incinerator, the amount of nitrogen in the incinerator 5 10 can be increased, and the dioxin produced in the incinerator can be further reduced. FIG. 18 is an explanatory diagram showing a fourth example related to the embodiment of this aspect. The incineration equipment shown in this figure is a person having a fluidized bed incinerator, in which '520 is a fluidized bed incinerator, 53 is a waste feeder, and 54 () is a sludge feeder. In addition, 526 is an exhaust gas treatment process, in which a boiler, a gas cooler, and the like are used to perform gas cooling, acid gas removal, and dust collection. The inside of the fluidized bed incinerator 520 is designed to be divided into a fluidized layer portion 523, and when the air is blown from the wind box 5 21 to form a fluidized layer during operation,

Page 67 521138 V. Description of the Invention (62) and the remaining width 524 above it. Nozzle 525 is provided in the remaining width portion 5 24, and is used to blow in the air for secondary combustion. Furthermore, a mechanism 5 710 is provided for the equipment attached to the exhaust gas treatment process 526 and is used to blow nitrogen compounds into the combustion exhaust gas flow path. This nitride blowing mechanism 570 forms a structure having an ammonia gas storage tank 571, a flow rate regulator 5 72, and a spray nozzle tube (not shown). In the waste incineration facility having the above-mentioned structure, waste is loaded into the incinerator 52 from the waste feeder 530, and sludge is loaded from the sludge feeder 53. The charged waste and sludge are dried in the fluidized bed while heating and burning. Due to the limitation of the amount of air blown in the circulation layer, the conventionally formed valleys are likely to cause the combustion state of dioxin. However, in this embodiment of the present invention, ammonia (NH3) or a compound having an NH2 group is generated due to the thermal decomposition of nitrogen-containing components in the sludge loaded together with the waste, which can suppress the above-mentioned dioxin generation reaction. . Because the combustible gas is sent to the treatment area, the exhaust gas is blown in. As mentioned above, the combustion exhaust gas generated by the moving layer section 523 contains ^, c0, CH4 and other gases, and the air is blown from the nozzle 525 into the remainder. 524 is used to perform combustible, secondary combustion treatment. The combustion waste discharged from the incinerator 52o to the exhaust gas treatment process 526, after cooling treatment, harmful gas removal, and dust removal treatment, is discharged from the chimney 527 and separated. The supplied ammonia gas is blown into the various processes as described above, the device or the flue to which each device is connected. Due to this ammonia gas, dioxins produced by the combustion gas flow path can be reduced. As mentioned above, because the sludge and waste are blown into the remaining area before the secondary combustion is performed 521138 V. Description of the invention (63) Dioxins in combustion gas are reduced. , 4 = ΚΠ5 :: Figure 18 shows a furnace-type incinerator or a waste incinerator, but the incinerator to which this aspect can be applied is not subject to the above two types of restriction methods 丨 incinerator. 21 μ-style restrictions ', for example, can also be smoked: 置 = ΐ In Figure 2 ~ Figure 17, the furnace 1 type incinerator is shown to be equipped with ΐΓΠΐϊϊ; made' but the structure of this aspect is not only applicable to possible In the application state, the part with the function of “Equipment” is provided. Furthermore, although the urea added to the incinerator in the equipment in FIG. 15 can be added to the waste as an aqueous solution, and In the equipment of Figure 17, the urea of Tim Likou is added to the sludge in a powder state. However, in the present invention, in the case of adding a compound, nitrogen is added in order to reduce waste. As far as possible, the waste distributed is not biased. It is best to add it in the form of an aqueous solution to attach and dispose of it .: When adding nitrogen compounds to the mud, in order to reduce the moisture content of the load, it is best to use powder. It is added in the state. "'Although, the nitrogen compounds blown into the exhaust gas flow path' in FIG. 15 to FIG. 18 are not restricted by the gaseous substances, and for example, they can be aqueous solutions such as ammonia or urea. . (Example 1) The results of incineration of wastes using a grate-type test facility are explained. For the waste samples, municipal waste is used, and for the sludge samples, sewage π mud is used (moisture = 77%, N = 6% (dry basis)). Furthermore, for loading

521138 V. Description of the invention (64) The nitrogen compounds in the exhaust gas flow path use ammonia. Then, according to a ratio of 200 kg / H of municipal waste and 200 kg / H of sewage sludge, the municipal waste and sewage sludge are charged into an incinerator and incinerated, so that the generated combustion waste is' implemented ammonia gas at 0.35Nm3 The flow is blown into the exhaust duct. ^ ^ The temperature in the air duct is about 300 t. This shows that 'waste is used in the incineration of waste in accordance with the above conditions. The concentration of dioxin in the released iron-burning waste gas is measured. It is known that the conversion of 2, 3, 7, 8-TCDD toxicity equivalent of Dai ^ The average value of the concentration is a low value equivalent to the value when the municipal waste is burned and only ordinary exhaust gas treatment is performed. In this way, during the incineration of waste, the fact that dioxin-containing tritium in combustion exhaust gas can be drastically reduced when blowing sludge and waste-ammonia radon into the exhaust gas flow path is confirmed. According to this aspect, 'sludge or nitrogen compounds and waste are put into an incinerator j :: to be incinerated so that nitrogen-containing components are thermally decomposed to produce: 2 nitrogen compounds produced by the action, and nitrogen compounds = ^ ^ ^ Combustion exhaust gas flow path after the exit to suppress the generation of j: classes in the combustion exhaust gas flow path. Therefore, it can greatly reduce the two (in the incinerator and the combustion of r gas Λ dioxin production amount. Furthermore, When using a 4 Vo furnace and waste air treatment process in two places), a waste gas with nitrogen compound supply = waste incineration equipment, it is possible to supply nitrogen compounds in two places (incinerator and exhaust gas treatment process), and The above effects can be obtained. The best aspect 11 ^ In this aspect, 'the king of various experiments in the waste incineration treatment, found that the waste is burned with sludge and other sewage ^ burned waste when mixed with sludge, page 70 521138 5. Description of the Invention (65) Dioxins in the gas will be reduced. Various studies have been conducted on dioxin reduction caused by sludge co-firing. Regarding one of the reasons for the burning state of the wearer in an atmosphere lacking in oxygen due to the incineration of the waste, and the combustion conditions in this state, the condition of the stage where the waste is heated up. The burning stage is caused by the thermal decomposition of sludge. Therefore, in view of the general nitrogen content of sludge, it is believed that the thermal decomposition products of nitrogen containing components that inhibit dioxin sludge nails are added. 2 The nitrogen compounds are added to the waste to reduce the dioxin (amount) in the gas. The substances produced by the sinophytes are ammonia (NH3) or compounds with NH2 groups in sludge. The nitrogen compounds produced by pyrolysis can not be determined at present, but it is inferred that the production of bebe in the dioxins It is reported that this poisoned effect may be one of the reasons for the effect; It is said by Ueto that the facts when burning waste. Therefore, in the case where the effect of the axin class produced by the inventor of the present case generates an ausin class, it is known that the main reason for the generation of dioxin in the discarded state is equivalent to the waste in the incinerator. It can be inferred that the initial combustion substance has the ability to inhibit the dioxin The amount of such substances as high as 2 to 10 wt% (dry basis) may be the effect of the effect, and experiments are performed. As a result of incineration in the experiment, burning waste was found. It can be inferred that the mechanism of inhibiting the production of dioxin when it is thermally degraded> The mechanism of dioxin production is 'these substances have a toxic effect on copper or its catalyst, and the nitrogen compounds inhibit the dioxin' Nitrogen compounds have a lifetime with waste. The present invention has been designed based on the above knowledge. Therefore, the above-mentioned test and research " qi :: produced results based on the nine I results

Page 71 521138 V. Description of the invention (66) The problem can be solved by the following invention The first embodiment of this aspect is a method of incineration of waste characterized by adding nitrogen compounds to the waste and filling it with an incinerator. In this embodiment, the penetration of nitrogen compounds together with the waste can suppress the generation of dioxin, as described above. Therefore, it is possible to reduce the amount of dioxin in the combustion exhaust gas by providing a very simple device. The second embodiment is a method for incineration of sludge and waste into a furnace together, and the waste is characterized by adding the nitrogen compound to the waste before the waste incinerator and / or the sludge. Method of incineration. 70 Waste and money are usually in separate μ incineration equipment, but (in the usual μ form), because the waste and sludge are treated together, the benefits of saving equipment costs and operating costs are generated, and Mud incineration has the effect of suppressing the production of dioxins. The sludges such as incinerated sludge and sewage sludge are clays with moisture content (65 ~ 90wt%) even after passing through the dewatering place. In order to overcome the above-mentioned situation, the waste and / After adding rat compounds to sewage or sludge, the sludge and waste are added to the incinerator to supplement the shortage of nitrogen. The third method is a method of incineration of sludge and waste: a method for incineration of the furnace. Adding nitrogen compounds into the incinerator, waste and sludge in the bucket is a special method.

521138 V. Description of the invention (67) In this embodiment, both sides of the mud can be added to the nitriding load, which is not biased to the fourth embodiment. The waste incineration equipment is added with nitrogen compounds for nitrogen preparation. In this embodiment, a small amount of nitrogen compounds can be used to suppress incineration without bias. A fifth embodiment is a waste incineration device that puts sludge into an incinerator and sludge and nitrogen compounds are inter-fired. This embodiment can improve the combustion when the moisture in the powder state is added. In the above embodiments, the organic waste water is produced when the wastewater is dredged and the solid-liquid river is dredged. Furthermore, the nitrogen compound Lu is used. In the preferred nitriding process, nitrogen compounds are uniformly distributed in the incinerator because of the waste and pollutants loaded in the incinerator, and the production of dioxins is suppressed. Therefore, a waste system in which sludge is incinerated with waste is not used in a waste incineration facility characterized by a waste compound adding mechanism installed in an incinerator. Since nitrogen compounds can be added to the waste, it can be uniformly added. A large amount of waste is generated in the furnace by dioxin. It's a kind of waste which burns sludge and waste together. It is equipped with a mechanism for adding nitrogen compounds to the sludge feeder (the user) and it is structured so that it can be mixed and put into an incinerator. Waste is particularly useful where powdered nitrogen compounds are added. Nitrogen compounds reduce the burning efficiency of the contents of the incinerator. In the state, sludge refers to sewage sludge, fecal urine sludge, sludge generated during the treatment of sludge, sludge generated when organic matter is removed, and sludge generated in closed waters. Specific examples of organic compounds or inorganic compounds containing nitrogen include the reduction of ammonia and urea.

88120517.ptd Page 73

FIG. 19 is an explanatory diagram showing a first example related to the embodiment of this aspect. The incineration shown in this figure is equipped with a grate type incinerator, where grate is a waste hopper, and is used to load municipal waste into the furnace. 61 5 is an exhaust gas treatment process. In the exhaust gas treatment process 615, a boiler, a gas cooler, or the like is used to perform gas cooling, acid gas removal treatment, and dust collection treatment. In addition, a mechanism 65 is provided for the equipment attached to the incineration of plutonium 610, and is used to add nitrogen compounds to the waste loaded into the incinerator 610. In the figure, 651 is a storage tank for an aqueous solution of urea (a kind of nitride), 652 is a urea supply pump, and 653 is a urea spray nozzle. In addition, 670 represents waste such as municipal garbage. In the combustion chamber 612 of the incinerator, there are staged furnace grates 613a with drying function, combustion stage grate 613b, and post-combustion stage furnaces. In this way, the combustion chamber can be divided into Mainly make the loaded = 670 dry area (drying zone) 'to burn the dried waste = (combustion zone), and the area where the post combustion is performed to ash the waste sent in the burning state (after Burning zone). In the waste incineration equipment according to the above-mentioned structure, the waste is put into the waste bucket and the bucket HI, and the waste is sprayed with 7 solution from the urea spray nozzle tube 653. The waste to which the urea is added is sent from the waste hopper 611 into the combustion chamber 61 2. In the combustion chamber 612, the loaded waste is transported on each of the above furnaces. 521138 V. Description of the invention (69) *-Same way, it is ashed through various steps of drying, burning, and post-combustion. discharge. Due to the operation of the air supply for restricting combustion in the upstream grate, the oxygen deficiency state occurred in part of the grate 513 & (drying zone) and the grate 513b (combustion zone) of the combustion zone. combustion. When incomplete combustion occurs in this way, the reaction between aromatic compounds and chlorine will cause dioxins to be easily generated. However, in this embodiment of the present invention, ammonia (NH3) or NA is generated by thermal decomposition of urea added to waste. Compounds such as these can inhibit the progress of the above-mentioned dioxin generation reaction. Since the combustion exhaust gas generated in the combustion chamber 61 2 contains the combustible gas generated in a part of the drying section grate 6j3a and the combustion section grate 613b, the air is blown into the secondary combustion chamber 61 4 to perform the treatment of combustible gas combustion . One of them-the combustion exhaust gas from human combustion to 614 is sent to the exhaust gas treatment process 615 ′ After cooling treatment, harmful gas removal treatment, and dust removal treatment ′, it is released from the smoke _ 6 6 and dispersed. As described above, 'The addition of urea to the waste and incineration can reduce the amount of dioxin produced in the incinerator and greatly reduce the dioxin content in the combustion exhaust gas. FIG. 20 is an explanatory diagram showing a second example related to the embodiment of this aspect. In FIG. 20, parts having the same structure as those in FIG. 19 are given the same symbols, and the month is omitted. In this embodiment, in addition to being provided with the same structure as in Fig. 1g, a sludge supply mechanism is provided so that sludge and waste can be put into the waste hopper 611 together. 6 4 0 is a sludge feeder. In addition, a nitrogen compound adding mechanism 660 is attached to the sludge feeder 6440, so that the nitrogen compound and the sludge can be mixed and put in. 6 61 is a storage tank for urea powder, while 6 6 2 is a service tank.

88120517.ptd Page 75 521138

Powder supply machine. In the waste incineration facility having the above-mentioned structure, the waste and sludge put into the waste hopper 611 are sent to the combustion chamber 612. In the combustion chamber / 61 2, the waste and sludge are ashed and discharged through various steps of drying, burning and post-combustion. At this time, as mentioned above, ammonia (NH3) or a compound having MI group is generated due to the nitrogen compounds in the sludge loaded with the waste & waste that are pyrolyzed during the drying process or early in the combustion process. Etc., can inhibit the above-mentioned `` dioxin generation reaction ''. Therefore, the content of "sin" in the combustion exhaust gas can be greatly reduced. ^ The combustion exhaust gas generated in the combustion chamber 61 2 is the same as that in the case of the equipment in Fig. 5 and undergoes secondary combustion treatment, gas cooling treatment, and harmful gases. After the "removal treatment" and "dust removal treatment", they are released from the chimney 6 1 6 and dispersed. Fig. 21 is an explanatory view showing a third example related to the embodiment of this aspect. The part of the same structure in FIG. 20 is given the same symbol and its description is omitted. In this embodiment, a mechanism 650 is provided to add nitrogen compounds to the waste and sludge put into the waste hopper 6 1 1 6 51 is a storage tank for aqueous solution, 652 is a urea supply pump, and 653 is a urea spray nozzle tube. In the waste incineration equipment according to the above structure, for the waste and sludge put into the waste hopper 611, An aqueous urea solution is sprayed from the spray nozzle tube 653. The waste and sludge to which the urea is added are sent to the combustion chamber 6 丨 2. In the combustion chamber 6 1 2, the waste and sludge are dried, burned, Ashing At this time, the same as the equipment in Figure 20, because the nitrogen compounds in the sludge loaded with the waste and the additional urea are both

521138 V. Description of the invention (71) Ammonia (MH3) or compounds having NH2 group are generated by thermal decomposition, which can inhibit the above-mentioned dioxin generation reaction, and can greatly reduce the content of dioxin in the combustion exhaust gas. The combustion exhaust gas generated in the combustion chamber 6 1 2 is discharged and dispersed from the smoke _ 61 6 after being treated in the same manner as the equipment in FIG. 19. FIG. 22 is an explanatory diagram showing a fourth example related to the embodiment of this aspect. The incineration equipment shown in the figure is a person with a fluidized bed incinerator, 630 is a waste feeder, 640 is a sludge feeder, and 620 is a fluidized bed incinerator. Furthermore, 626 is an exhaust gas treatment process, in which a boiler, a gas cooler, and the like are used to perform gas cooling, acid gas removal treatment, and dust collection treatment. 〃 μ moving bed incinerator 6 2 〇 is designed to be divided into flow layer section 6 2 3, the use of air supplied to the wind box 621 to form a flow layer during operation, and the remaining width section 624 above it, The remaining width portion 6 24 is provided with a nozzle 6 ^ 25 for air blowing. 6 22 is a dispersion plate and is used to rectify the air blown from the wind box 621 into the flowing layer. Furthermore, a nitrogen compound adding mechanism 660 is attached to the sludge supply machine 64, so that the nitrogen compound can be mixed with the sludge and fed. In the waste incineration facility having the above-mentioned structure, waste is charged into the incinerator from the waste supply machine 630, and sludge is charged into the incinerator 620 from the sludge supply machine. At this time, the sludge supply The machine 64〇 is loaded with urea sludge with urea. The loaded waste: matter /; loss / dagger in /; IL moving layer is dried while heating up and burning. In the machine through layer due to The amount of air blow-in is limited, and it is easy to produce

521138 V. Description of the invention (72) ------ The burning state of dioxin. However, in the present invention, since the nitrogen compounds in the sludge loaded with the waste and the urea added to the sludge are decomposed to generate ammonia (NHS) or a compound having an NH2 group, the above-mentioned dioxin can be suppressed. Generation reaction. The incombustibles in the waste are extracted from the bottom of the incinerator. ^ The combustion exhaust gas generated in the fluid layer contains flammable gases such as &, C0, cl, etc., and air is blown from the nozzle 625 into the remaining width portion 624 to perform the secondary combustion treatment of combustible gas combustion. After that, the exhaust gas discharged from the secondary combustion chamber 614 is sent to the exhaust gas treatment process 626, where after the cooling process, the harmful gas removal process, and the dust removal process, it is released from the smoke 627. As described above Because the sludge is loaded together with the waste, and urea, which is a nitrogen compound, is added to the sludge for incineration, the content of dioxin in the combustion exhaust gas can be greatly reduced. Six again, although in Figure 19 ~ Figure The waste incineration equipment equipped with a grate incinerator or a fluidized bed incinerator is shown in 22, but the incinerator to which this aspect can be applied is not limited by the two types mentioned above. Moreover, although shown in FIGS. 19 to 21 In the grate type incinerator, a structure equipped with a stage type furnace is shown, but the structure of this aspect is not only applicable to the stage type, but a horizontally arranged grate is also possible. Furthermore, 'Although shown in Figure 19 ~ In the device of FIG. 22, two methods are described in the case of powder and the state of aqueous solution regarding the state of urea addition of nitrogen compound. C In the present invention, the state of nitrogen compound at the time of addition is not limited. When adding nitrogen compounds to bulky waste,

521138 V. Description of the invention (73) In the case where it can be added in the form of an aqueous solution to adhere to the waste π: addition compound, it is preferable to mix it with the sludge in the sludge feeder. (Example 1) The results of incineration of waste using the same test equipment as the wide-type incinerator shown in FIG. 20 will be described. The use of municipal waste is the The use of sample water = (77% by weight of waste water, 6% by weight of N (dry basis)). Add urea powder to the sludge. Lack = Qing H, sewage g / H, and ㈣ are loaded for incineration. Dry = Dioxin in the incineration of exhaust gas in accordance with the above conditions #Approximately 20% of the value when only municipal waste is incinerated and only W-Tong's exhaust gas is treated. 2. In the case of waste incineration, the fact that dioxin content in the combustion exhaust gas can be greatly reduced when sludge is loaded or when further nitrogen compounds are added is confirmed. According to this aspect, since nitriding is added when the waste is loaded into the incinerator = or sludge and nitrogen compounds are added to cause the sludge and the added nitrogen compounds to be decomposed to suppress the production of dioxin, it can be reduced The production of incineration J can greatly reduce the dioxin in the combustion exhaust gas :: Xin Li Furthermore, when a waste device equipped with a device for adding nitrogen compounds is incinerated, it is possible to add nitrogen compounds to the device. Incinerator

P.79 521138 Invention description (74) The above-mentioned effect can be obtained. The best aspect 12 The purpose of this aspect is to provide a method and equipment for incineration that can reduce the amount of dioxin produced by simply setting up a simple device and adding inexpensive materials. Regarding your sample, in the various experiments conducted for the incineration of waste, it has been found that the dioxin content in the combustion waste gas will be reduced when the waste is mixed with sludge such as sewage sludge. Therefore, the inventor of this case

Various studies have been conducted on how the effects of dioxin reduction caused by sludge co-firing can occur. Regarding the incineration of waste resulting in the production of dioxins, it is known that the combustion state of wastes in an oxygen-deficient atmosphere is one of the main reasons for the generation of dioxins. The combustion conditions in this state are equivalent to The conditions of the initial combustion stage when the waste is heated up. It can be inferred that the substances produced by the thermal decomposition of sludge during the combustion stage of the period have the effect of suppressing the generation of ausin. ;

= Yes, given that the nitrogen content of general sludge is as high as 2 to 10 wt% (dry basis), one is considered that the substance that has the effect of inhibiting the production of dioxin may be the heat of the nitrogen-containing component in the sludge Decompose products and perform experiments. As a result of adding nitrogen compounds to the waste to perform incineration in the "Experiment" and "Secondary", it was found that the dioxin (amount) in the combustion 2 gas was reduced. It can be inferred that the substance that inhibits the production of dioxin is sludge Ammonia (NH3) or compounds with nh2 group produced by the nitrogen-containing component in the thermal decomposition. The thermal decomposition products of the nitrogen-containing component can inhibit the production of dioxin.

521138 V. Description of the invention (75) It has not been determined at this time, but it can be speculated that these substances have a toxic effect on copper or other substances that act as catalysts for Dior + quasi-f reaction. This effect is caused by f. This is one of the reasons for the effect of the thermal decomposition product on the inhibition of dioxin. As described above, when the waste is incinerated, nitrogen compounds and the waste can be used together to suppress the occurrence of dioxin. This aspect is based on the above. Based on the results of the formula test and research Jiu Ji design. Therefore, the above problem can be solved by the following invention. In a first embodiment of this aspect, in a method for incineration of waste using a furnace equipped with a grate furnace, nitrogen compounds are added to the waste that has been incinerated and reached the drying zone, Incineration method of waste characterized by incineration. As mentioned earlier, combustion occurs in the initial stage of combustion, and combustion occurs under conditions that are prone to occur. Therefore, for the waste that is stored in the drying zone ^ ui% is set to be added to the incinerator after the drying, or the thermal drying of the drying zone begins to add nitride: can reduce the heat generated in the drying zone The amount of dioxins produced during decomposition (reaction) or during the combustion (reaction) of the second combustion zone. …, 'In the use of an incinerator equipped with a furnace f type; incinerator of the incinerator and the incineration of waste characterized by incineration of waste nitrogen compounds sent to the drying zone in the incinerator ^ square / a, mouth waste The incineration of materials and the incineration of sludge are usually carried out separately. However, (in this embodiment), the waste material <spirit &β; and the prepared fruit are treated with sludge together with the sludge, which can save equipment costs. And operation dependent ^ ^ ^ Get Jia Zhixiaoya, and due to sludge

88120517.ptd p. 81 ^ 1138

= Incineration 'can suppress the effects of dioxin. However, the sludges such as sewage sludge that are incinerated are clays with a moisture content (65 ~ 90wt%) even after dehydration treatment. If a large amount of this dewatered sewage / Ni is charged, it will cause a bad combustion state in the incinerator. Therefore, it may not be possible to load sludge for the purpose of supplying a required amount of nitrogen components. In the present invention, in order to overcome the above-mentioned situation, nitrogen compounds are added to the waste and / or sludge on the drying zone in the incinerator to make up for the insufficient amount of nitrogen. In a second embodiment, in a method of incinerating waste using an incinerator equipped with a fluidized bed incinerator, the waste is charged into an incinerator and burned, and nitrogen compounds are blown into the remaining portion. The method of incineration of waste is characterized by the area before secondary combustion. Furthermore, in this embodiment, the area before the secondary combustion of the 'remaining portion' refers to the area from the upper end of the flowing layer to the blowing position of the air for secondary combustion. The waste entrained in the fluidized bed incinerator is burned in the fluidized bed. Among them, it is particularly noteworthy that after the loaded waste is dried, the initial combustion stage of combustion is followed by a state prone to dioxin formation . Therefore, in the marginal portion where the combustion gas generated in the fluidized layer is allowed to rise, the area before the secondary combustion air is blown in also forms a state prone to dioxin. Therefore, adding nitrogen compounds to this area can reduce the production of dioxins. The fourth embodiment is an incineration method characterized in that sludge and waste are charged into an incinerator together with the waste incineration method described in the third embodiment.

Page 82 521138 V. Description of the invention (77) Always applied here> "Because the sludge is charged into the incinerator, and nitrogen compounds are blown into the remaining area before the primary combustion, the flow layer can be reduced And the amount of dioxins produced after the rest. '' The fifth embodiment is a waste incineration characterized by a nitrogen compound addition mechanism in a drying zone for supplying nitrogen compounds to the incinerator in a waste incinerator equipped with a grate type incinerator. device. According to this embodiment, since nitrogen compounds are supplied to

Oxygen-type drying belts can reduce the dioxin production of drying and combustion belts. The embodiment of I and I is provided with waste incineration for supplying compounds. In the sixth embodiment of the embodiment, nitrogen is used as a feature in the sixth facility, and the waste is charged. Burning equipment. In the implementation when the amount of nitrogen in the substance and sewage is available, the former sludge is used together to suppress the supply to the insufficient form. The nitrogen in the used field is equipped with sludge incinerator facilities. ’Because of the dioxin incinerator ’s nitrogen content. There is a mechanism for adding a dry compound for adding nitrogen compounds to a furnace to dry the waste inside the sludge treatment process; a mechanism for waste incinerators of a type incinerator; and a nitrogen compound adding mechanism for being used The mud and waste can be used together to save equipment costs and operating costs. In addition, due to the drying zone, waste incineration characterized by the incineration of waste sludge bed incinerators into the remaining structure of the incinerator can be supplemented. Nitriding can reduce the remaining portion in accordance with this. In one embodiment, the area before the second combustion, the generation of dioxin after the compound is supplied to the remaining area

88120517.ptd Page 83 521138 V. Description of the invention (78) The quantity of f 2 taxis is in the form of waste incineration with a fluidized bed incinerator, and f # is provided for supplying sludge to the incineration Furnace mechanism and waste incineration facility featuring nitrogen compound adding mechanism for blowing nitrogen compounds into the remaining area of the incinerator before the secondary combustion. Pianyi ..., this bee is evil, because the sludge can be loaded into the incinerator, and nitrogen compounds can be blown into the area before the secondary combustion of the remaining portion, which can reduce the dioxin in the flow layer portion and the remaining portion The amount of production. f In the above embodiments, sludge refers to sludge generated when sewage, sewage, urine, organic wastewater is treated with activated sludge, and organic-containing wastewater is produced through solid-liquid separation. And sludge generated in dredging in closed waters / Kechuan. ~ F, nitrogen compounds refer to organic compounds or inorganic compounds containing nitrogen. Specific examples of preferred nitrogen compounds include low compounds such as ammonia and urea. The nitrogen compound may be used in a gas, liquid, solid, or aqueous solution, but an appropriate form of the compound is selected depending on where the nitrogen compound is added. Milk: 23 is the first example showing the implementation of this aspect. Is the incineration equipment with a grate incinerator? 10 is a furnace-type 1 k furnace, 711 is a waste hopper, and is used to load municipal waste into the furnace, and 715 is an exhaust gas treatment process. In waste, the process m uses steel furnaces, gas coolers, etc. to perform gas cooling, 'two rolling body removal processing, and dust collection processing. In the picture, 7 ^ waste and other waste. Not clothed

Page 84 521138 V. Description of the invention (79) In the combustion chamber 71 2 of the incinerator, a drying section grate 713a, a combustion section grate 713b, and a post-combustion section furnace 713 3 with a transport function are provided in stages. c. It is designed so that the combustion chamber can be divided into a region (drying zone) mainly for drying the loaded waste 760, a region (combustion zone) for burning the dried waste, and performing post-combustion so that The area where the incoming waste is ashed (post-combustion zone). Furthermore, a mechanism 75 is provided for the equipment attached to the incinerator 710, and is used to add nitrogen compounds to the waste in the combustion chamber 712. The nitrogen compound adding mechanism 750 forms a structure of a storage tank 751 having a urea (i.e., a nitrogen compound) aqueous solution, a urea supply pump 752, and a urea spray nozzle tube 753. In addition, as for the urea spray nozzle tube 753, a plurality of urea spray nozzle tubes 753 can be arranged as required, so that the urea aqueous solution can be dispersed throughout the width direction of the grate 713a in the drying section. In the waste incineration equipment according to the above structure, the waste put into the waste hopper 71 1 is sent to the drying section grate 73 &amp; of the combustion chamber, and the waste is sprayed from the urea spray nozzle tube 753 Spray with urea solution. In the combustion chamber 712, the loaded waste is transported on the above grate while being ashed through various steps of drying, burning, and post-combustion, and is discharged j. In the meantime, because the furnace on the upstream side allows the use of air for restricting combustion, a part of the furnace section 713 &amp; (drying zone) and the furnace section (.,., Λ π) in the drying section burns in an oxygen-deficient state. This is how 时 ΓίΙί: Yao Shi 'will cause the reaction of aromatic compounds and chlorine to easily produce dioxins. However, in this embodiment of the present invention, the furnace grate 71 3a (drying zone) is added to mochi because it is added in yttrium. The urea added to the waste is thermally decomposed to produce ammonia 88120517.ptd Page 85 521138 V. Description of the invention (80) (NH3) or a compound having a 02 group, etc., can inhibit the progress of the above-mentioned dioxin generation reaction. The combustion exhaust gas generated in the combustion chamber 712 contains the combustible gas generated in a part of the drying section furnace 713a and the combustion section grate 713b. The air is blown into the secondary combustion chamber 714 for the treatment of combustible gas combustion. Secondly, the combustion exhaust gas discharged from the secondary combustion chamber 714 is sent to the exhaust gas treatment process 715, and after the cooling treatment, the harmful gas removal treatment, and the dust removal treatment, the smoke 71 6 is released and dispersed. As mentioned above, incineration can be reduced by adding urea to waste

The amount of dioxin produced in the body is reduced, and the content of dioxin in the combustion exhaust gas is greatly reduced. N FIG. 24 is an explanatory diagram showing a second example related to the embodiment of the present invention. Fig. 24. Parts having the same structure as those in Fig. 23 are given the same reference numerals and descriptions thereof are omitted. In this embodiment, in addition to the same structure as that shown in Fig. 23, a sludge supply mechanism is provided so that sludge can be put into the waste hopper 711 together with waste. In the figure, 74 is the sludge supply ^. = In the waste incineration equipment according to the above structure, the waste and sludge put into the waste hopper are sent to the drying section of the combustion chamber, 7i3a, and the urea spray nozzle 753 is sprayed with the urea aqueous solution. . In the combustion chamber 712, the waste and sludge are dried, burned, and burned after the ashes = and ash: dagger: discharged "At this time, as mentioned above, due to the turbulent compounds in the waste with the waste and the furnace The urea added inside is thermally decomposed during the drying process to produce ammonia (NH3) or NH2 group. "Do n’t specialize, it can inhibit the above-mentioned dioxin generation reaction. In &amp;, 521138

Reduce the content of dioxins in combustion exhaust. The combustion exhaust gas generated in the combustion chamber 71 2 is the same as that in the case of the device in FIG. 23. After the secondary combustion treatment, gas cooling treatment, harmful gas removal treatment, and dust removal treatment, the smoke _ 71 6 is released and dispersed. Fig. 25 is an explanatory diagram showing a third example related to the embodiment of this aspect. The incineration equipment shown in this figure is one having a fluidized bed incinerator. 720 is a fluidized bed incinerator and 730 is a waste feeder. In addition, 726 is an exhaust gas treatment process, in which a boiler, a gas cooler, etc. are used to perform gas cooling 'acid gas removal treatment and dust removal treatment. The fluidized bed incinerator 720 is designed to be divided into a fluidized layer portion 723, and a person who uses the air supplied to the wind box 721 to form a fluidized layer during operation, 724 is provided with a nozzle 725 for blowing in air for secondary combustion. Moreover, the equipment attached to the fluid bed incinerator 720 is provided with a nitride compound adding mechanism 750, and is used to blow nitrogen compounds into the remaining width portion 724 of the incinerator. The nitrogen compound adding mechanism 750 forms a storage tank 7d51J urea supply pump 752 with a urea aqueous solution, and a structure of a urea spray nozzle tube 753. The urea spray nozzle tube 753 is installed at a lower level than the position where the air blowing nozzle is provided, and the urea aqueous solution can be blown into the combustion exhaust gas in an incomplete combustion state. In the operation of the garbage incineration device with a confusing structure, the waste is removed from the waste (the feeder 73 is loaded into the incinerator 72), and the loaded waste is heated and burned while the fluid layer 723 is being dried in Zhongtian. Since air is restricted to the flow layer, in the case of the conventional technology, the remaining portion 724 that allows the combustion exhaust gas generated by the flow layer 723 to rise is also formed, which is prone to generate dioxin.

521138 V. Description of invention (82) Burning sorrow. However, in this embodiment of the present invention, the generated urea is thermally decomposed to generate ammonia (NH3) or a compound having a 2 group, etc., thereby suppressing the production of dioxin. Since the combustion exhaust gas generated by the flowing layer 723 contains flammable gases such as sulfide, co, ci, etc., air is blown in from the nozzle 725 to perform a primary combustion treatment for combustible gas combustion. Secondly, the combustion exhaust gas discharged from the incinerator 7 2 0 is sent to the exhaust gas treatment process 726, and after cooling treatment, harmful gas removal treatment, and dust removal treatment, it is released from the chimney 7 2 7 and dispersed. As described above, 'the area where the secondary combustion is performed because nitrogen compounds are blown into the remaining portion' can reduce the content of dioxin in the combustion exhaust gas. FIG. 26 is an explanatory diagram showing a fourth example related to the embodiment of this aspect. The incineration equipment shown in this figure is a person having a fluidized bed incinerator. In Fig. 26, parts having the same structure as those in Fig. 25 are given the same reference numerals, and descriptions thereof are omitted. In this embodiment, in addition to the same structure as that shown in Fig. 25, a sludge supply mechanism is provided so that sludge and waste can be put into the incinerator 720 together. In the figure, 740 is a sludge feeder. In the waste incineration facility according to the above structure, waste is charged into the incinerator 72o from the waste feeder 730, and sludge is loaded into the incinerator 720 from the sludge feeder 74o. The charged waste and sludge are dried in the fluidized layer 723 while being heated and burned. At this time, the amount of air blown in the fluid layer 723 is limited, and in the case of the conventional technique, a combustion state in which dioxin is likely to occur is formed. However, in this embodiment of the present invention, since the sludge is contained, the effect of nitrogen compounds generated by the thermal decomposition of the sludge can be used to suppress the generation of dioxins in the flow layer 7 2 3.

88120517.ptd Page 88 521138 V. Description of the invention (83) In addition, in the remaining width portion 724, the urea exhaust gas nozzle 7 5 3 is sprayed with the urea aqueous solution from the urea spray nozzle tube 7 5 3 for the combustion exhaust gas rising from the flowing layer 723. Due to the effect of nitrogen compounds generated by the thermal decomposition of the urea injected, the generation of dioxins from the margin section 7 to 24 can be suppressed. As described above, since the sludge is charged into the incinerator and the nitrogen compound is blown into the area before the secondary combustion is performed, the generation of dioxin in the two places (the fluid layer and the remaining area) can be suppressed. As a result, the content of dioxins in the combustion exhaust gas can be greatly reduced. Pressing again, although the grate type incinerator with a stage structure is shown in the grate type incinerator in FIGS. 23 and 24, this aspect is not only applicable to the stage type structure, but is mainly provided in the furnace. It is possible to apply this aspect to parts with drying belt function. Furthermore, in the waste incineration equipment shown in Fig. 25, lice insects are blown into the area before the secondary combustion of the remaining area of the special furnace, so as to obtain the dioxins produced by the remaining area ( The amount of dioxin is reduced, but when a structure capable of loading sludge together with waste is added, it may cause further reduction of dioxin. That is, in the flowing layer 723, the s nitrogen component in the sludge is thermally decomposed to generate the nitrogen compound as described above, and the flow can also be suppressed, and the generation of dioxin in 723 can be suppressed. Therefore, the content of dioxins in the combustion gas can be greatly reduced. Humans, although the description of the equipment in FIG. 23 to FIG. 25 describes the case where the state of the added diurea is an aqueous solution, in this case, the state of the desired nitrogen compound is not limited to the aqueous solution. . In the grate type incineration, it can also be used in the case where gaseous compounds are added to the waste on the drying zone.

Page 89 521138 V. Description of the invention (84) Ammonia gas can also be used in the case of blowing in the remaining width of the fluid bed incinerator with powder of urea and the like. (Example 1) The results of incineration of waste in a grate type incinerator will be described. Municipal waste was used for waste samples, and sewage sludge was used for sludge samples (moisture = 77wt%, N = 6wt% (dry basis)). Urea was used for the nitrogen compound blown into the furnace, and it was supplied as an aqueous urea solution. Then, incineration was carried out at a ratio of 2000 kg / H of municipal waste and 200 kg / H of sewage sludge to perform incineration ', and Pei on the grate in the drying section of the incinerator was sprayed with a substance spray and an aqueous solution was used. When the urea aqueous solution is blown in, a flow rate capable of supplying urea at 1 kg / H is set. ¥ In the incineration in accordance with the above conditions, the results of measuring the concentration of the combustion exhaust gas were learned. The average value of 2, 3, 7, 8 —Tcdd 箄 f concentration of dioxin is a low value, which is equivalent to incineration only. About 20% of the value of garbage and ordinary waste gas treatment. It is also confirmed that the addition of nitrogen compounds to the nitrogen-containing sludge or nitrogen compound waste gas when burning is used. 'The fact that the content of dioxin in…, 70 &amp; chaos is greatly reduced has been confirmed. = This aspect 'Because of the dry waste and 5 ：: Ji, Le 丄, a ^ dry matter or 5 / Nitrogen added nitrogen compounds into the incinerator, the sludge and the sludge are distinguished. L 4. In addition, the rat compound has been sliced to produce dioxin which can inhibit the production of dioxin. Second, the amount of dioxin in the incinerator is reduced. In addition, 22: The wearing of a material for a substantial reduction in material supply. When referring to a waste incineration facility equipped with nitriding and industrial equipment, '有 可 钤 徂 纸 #i 儿 人人 被 added to Makuza ^% t The above-mentioned effects can be obtained by nitriding and rejection of σ, σ, σ.

Page 90 521138 V. Description of the invention (85) The best aspect 13 About this aspect, during the various tests of waste incineration treatment, it was found that the waste was mixed with sludge such as sewage sludge. The fact that the content of dioxin in the exhaust gas from time to time is reduced. Therefore, the inventors of the present case have conducted various studies on how the effect of dioxin reduction caused by sludge co-firing has occurred. It is known that one of the main reasons for the generation of dioxins from the incineration of wastes is the lack of oxygen in the combustion atmosphere. The combustion conditions in this state are equivalent to the conditions of the initial combustion stage when the waste charged into the incinerator is heated and warmed. It can be inferred that the substances produced by the thermal decomposition of sludge during the initial combustion stage have the effect of inhibiting the production of dioxins. Therefore, in view of the fact that the nitrogen content of general sludge is as high as 2 to 10 wt% (on a dry basis), it is considered that the substance having the effect of inhibiting the production of dioxin may be a thermal decomposition product of nitrogen-containing components in the sludge, And perform experiments. In the experiment, as a result of adding nitrogen compounds to the waste to perform incineration, it was found that the dioxin (amount) in the combustion exhaust gas was reduced. It can be inferred that the substances that inhibit the production of dioxins are ammonia (NH3) or compounds with NH2 groups that are produced when the nitrogen-containing components in the sludge are thermally decomposed. The mechanism by which the thermal decomposition products of nitrogen-containing components can inhibit the production of dioxins has not yet been determined, but it is speculated that these substances have a toxic effect on copper or other substances that act as catalysts for dioxin generation reactions. This toxic effect may be one of the reasons that the thermal decomposition product inhibits the production of dioxins. In this way, it is thought that the above nitrogen compounds of the thermal decomposition products of sludge are important for incineration.

^ 21138

The generation (reaction) of dioxin at the time of waste has an inhibitory effect. As a result of the incineration of nitrogen compounds added to the waste, the fact that dioxin can be generated is confirmed. In addition, in this case, the production of dioxin in the combustion exhaust gas discharged from the incinerator was also studied, and a method for suppressing the occurrence of 誃 oxin was found as described below. It is generally believed that a certain component in the fly ash in the flow path of the combustion exhaust gas acts as a catalyst to promote the reaction between the unburned aromatic compounds and the gas to generate dioxins. Therefore, in this case, a test was also performed to blow nitrogen compounds into the combustion exhaust gas discharged from the incinerator, and as a result, the amount of dioxin in the exhaust gas was reduced. The reason for this reduction may be the same as the case where nitrogen compounds are installed in the incinerator, which is caused by nitrogen compounds blown into the exhaust gas flow path to suppress the production of dioxins. In addition, it is generally considered that the temperature range in which dioxins are liable to occur is 2000 to 80 ° C. Furthermore, if nitrogen compounds are blown into the combustion exhaust gas above 700 ° C, the nitrogen compounds blown in are consumed in the reduction reaction of NOx without effectively inhibiting the production of dioxins. Therefore, when nitrogen compounds are blown into the combustion exhaust gas, it is necessary to set the temperature of the combustion exhaust gas below 700 ° C, and preferably below 650 ° C. Therefore, the place where the nitrogen compound is blown in the present invention is limited to the part of the exhaust gas flow path where the exhaust gas is cooled to below 65 ° C. The combustion exhaust gas discharged from the secondary combustion chamber of the incinerator usually forms a high temperature of 85 ~ 950 ° C. Therefore, after cooling to below 650 ° C, the nitride is blown into it. For example, in the case of equipment with a boiler, nitriding

521138 V. Description of the invention (87) The compound is blown into the steel furnace which is cooled to 65 ° U. The compound is blown into the exhaust gas stream of the boiler outlet or the gas is generated; Again, with the gas, "" Brother, blowing nitrogen compounds into the gas cooler or its outlet can suppress the production of dioxins with good efficiency. "Road, this aspect is based on the above-mentioned tests and research Designers. Nine hearts ... Fruit-based knowledge and knowledge ΐ The first form is to add nitrogen compounds to waste to make it dry, and blow nitrogen compounds into a simmered wheat gas plant below 650 ° c, / 浼, 70 The method of incineration of waste characterized by the location of the gas path IL through the waste incineration is because the nitrogen compounds are charged (or added) into the dioxin-type amount of the less-burning exhaust gas. At the same time, the production of dioxins is carried out from the place where the nitrogen compounds work with good efficiency, and where the nitrogen compounds blow on the combustion exhaust gas flow path. The confusing form can suppress the second form with good efficiency. The sludge and waste nitrogen compounds are blown into the incinerator from less than 65 t later, and the waste gas stream flowing through the burning waste gas under the position # 1 + Luzhi | Only Feng's waste incineration method. Mixed incineration of common ginseng waste. By making the work of the sludge, the dioxin-like effect can be suppressed due to the nitriding &amp; effect of the sludge. Compounds are blown into the flow path of the combustion exhaust gas to suppress the incinerator and combustion

Page 93 521138 V. Description of the invention (88) Road = the generation of dioxin. In addition, waste incineration and sludge incineration are usually carried out separately in dedicated incineration equipment. However, in this form, the waste and sludge are incinerated together, which can benefit from further savings in equipment and operating costs. The third aspect is characterized in that the waste incineration method described in the second aspect is characterized by adding nitrogen compounds to the waste and / or sludge when the sludge is loaded into the incinerator together with the waste. Waste incineration method. In this form, a nitrogen compound is added to waste or sludge or both before the incinerator is installed. Since the sludge such as water sludge under the incineration treatment is a clay with a high water content (65 to 90% by weight) even after dehydration treatment, if a large amount of this dewatered sludge is loaded, Poor combustion conditions can occur in the incinerator. Therefore, if it is left as it is (without any measures applied), it may not be possible to load sludge for the purpose of supplying the required amount of nitrogen components. In this case, 'in this form, the addition of a nitrogen compound to supplement the insufficient nitrogen amount' can greatly reduce the dioxins produced in the incinerator while maintaining a normal combustion state. Furthermore, when waste and sludge are co-fired in a waste incineration plant, the cost-saving benefits described above can be produced. The fourth aspect is a waste incineration facility equipped with a boiler for heat recovery with secondary combustion exhaust gas (exhaust gas after secondary combustion), and is provided with nitrogen added to the waste that is charged into the incinerator. Compound mechanism and waste incineration facility featuring a mechanism for blowing nitrogen compounds into the combustion exhaust gas flow path of the boiler outlet.

Page 94 521138 V. Description of the invention (89) According to this form, since nitrogen compounds can be added to the waste, the amount of dioxin in the incinerator can be reduced. In addition, since the combustion exhaust gas flow path at the outlet of the furnace is provided with a mechanism capable of blowing nitrogen compounds into the combustion exhaust gas, the nitrogen compounds can be blown into a portion of less than 65% for performing dioxin suppression with good efficiency. As a result, the amount of dioxin produced in the combustion exhaust gas flow path can be reduced with good efficiency. The fifth aspect is a waste incineration facility provided with a gas cooler for cooling the secondary combustion exhaust gas, which is provided to be used for charging into the incinerator.

A waste incineration facility is characterized by a mechanism for adding nitrogen compounds to waste and a mechanism provided with a combustion exhaust gas flow path for blowing nitrogen compounds into the outlet of a gas cooler. According to this form, nitrogen compounds can be added to the waste, and nitrogen compounds can also be blown into the gas cooler outlet, which belong to the part below 6500c which performs the suppression of the ausin generation reaction with good efficiency . Therefore, the amount of waste generated in the incinerator and the combustion can be reduced with good efficiency. Μ 乂 中 Withered: !! State is a waste related to the fourth form or the fifth form

5: = :! Disposal featuring a mechanism that is used to load sludge into the incinerator instead of a phytochemical substance addition mechanism (a mechanism that is used to replace the nitrogen compound added to the incinerator) Waste incineration equipment. ', Tim 5: Department:: f: Because the sludge is charged into the incinerator instead of the nitrogen compound, it is the same as the fourth form or the fifth form; and the seventh form is the sixth form. In the form of waste incineration equipment,

Page 521138

A waste incineration facility characterized by the structure of adding nitrogen compounds to the dagger is added. In this form, since the compounds are loaded after the sludge is charged into the incinerator, The field of adding nitrogen to suppress the effects of dioxins: = = = = the amount of nitrogen achieved. In the incinerator, the sludge generated during the sludge-based sludge treatment was selected according to the low solution of the organic compound and the like generated during the separation of the activated sewage at the waste gas after treatment. As far as things go. In the form of cheap compounds, nitrogen compounds are in various forms. The device through which the gas flows refers to the sludge produced by the sewage. Nitrogen is preferred. Nitriding is used. • ^ Dynamic heat recovery and sludge connected with sludge, feces and urine, nitrogen compounds containing and blocking compounds means gas can be used in gas, but depending on the gas flow path device, gas sludge, etc. Specific examples of nitrogen in organic waters, organic waste water containing liquid nitrogen compounds, and flue organic waste water cooled by rivers can be listed as solid places. When water passes through solid-liquid dredging or there is no ammonia, urea, or water. Figure 27 shows the first example of the implementation of this aspect. The incineration equipment shown in this figure is equipped with a grate incinerator. By. Furthermore, the incineration equipment shown in this figure is provided with a boiler. In the figure, 81 is in a type I incinerator, 811 is a waste hopper, which is used to load municipal waste 880 into the furnace, 815 is a boiler, and 816 is a dust collector such as a bag. Furthermore, a nitrogen compound adding machine is provided for the equipment attached to the incinerator 810

88120517.ptd Page 96 521138 V. Description of the invention (91) '------------ == 〇 It is used to add nitrogen to the waste that is loaded into the incinerator 810. This nitrogen compound adding mechanism 850 forms a structure of a storage tank 851 having a urea (ie, nitrogen compound) aqueous solution, a urea supply pump 852, and a nozzle tube 853. Urea consignment In addition, the equipment attached to the exhaust gas treatment process is provided with a nitrogen compound blowing structure, structure 870, which is used to blow nitrogen compounds into the combustion exhaust gas flow path. This compound blowing mechanism 870 forms a structure having an ammonia gas storage tank 871, a flow rate meter 872, and a spray nozzle tube (not shown). Ammonia spray nozzle ° The combustion exhaust gas flow path is inserted into the outlet of the pin furnace 815. Inside the combustion chamber 81 2 of the incinerator, a drying section grate 813a, a combustion section grate 813b, and a post-combustion section 篦 813c are provided in a stepwise manner, each of which has a transport function. It is designed so that the combustion to 812 can be divided into a region (drying zone) mainly to dry the loaded-in waste 880, a dried waste ^, a burning zone (combustion zone), and post-combustion to make Area where the waste sent in the burning state is ashed (post-combustion zone). "In the garbage incineration equipment according to the above structure, the waste is put into the waste hopper 811, and the urea is sprayed with a urea solution from the urea spray nozzle tube 853. The waste added with urea is added from the waste. The hopper 811 is sent into the combustion chamber 8 1 2. In the combustion chamber 81 2, the loaded waste is transported on each of the above grate while being ashed through the steps of drying, burning and post-combustion, and is ashed. At this time, due to the operation of the upstream grate to limit the amount of air supply for combustion, an oxygen deficiency condition occurred in part of the grate 813a (drying zone) and the grate 81 3b (combustion zone) in the combustion zone. Of burning.

P.97 521138 V. Description of the invention (92) When incomplete combustion occurs in this way, if conventional techniques are used, it will cause the reaction of aromatic compounds with chlorine to easily produce dioxins. However, in this embodiment of the present invention, due to the addition of Urea in the waste is thermally decomposed to generate ammonia (NI) or a compound having an N group, etc., which can suppress the above-mentioned dioxin-like formation reaction. The combustion exhaust gas generated by burning to 8 1 2 contains the combustible gas generated in the drying section grate 8 1 3 a and the combustion section grate 8 1 3 b, and blows air into the secondary combustion chamber 8 1 4 In order to implement the secondary combustion treatment of combustible gas combustion. The combustion exhaust gas discharged from the secondary combustion chamber 8114 is recovered by the boiler 8 1 5 and cooled to a temperature of about 200 to 3 0 ° C, and then sent to a dust collector to be subjected to a dust removal treatment and then released and dispersed. In the atmosphere. At this time, an ammonia gas is blown into the combustion exhaust gas flow path of the outlet of the boiler 815 from the nitrogen compound blowing mechanism 8 70. Due to the blowing of this ammonia gas, the dioxin (amount) generated in the flow path of the combustion exhaust gas can be reduced. As described above, the nitrogen compounds are charged into the incinerator and the exhaust gas flow path, thereby reducing the amount of dioxin produced in the two places (the incinerator and the exhaust gas flow path). FIG. 28 is an explanatory diagram showing a second example related to the embodiment of this aspect. In Fig. 28, the same components as those in Fig. 27 are designated by the same reference numerals, and descriptions thereof will be omitted. In this embodiment, a sludge supply mechanism is provided for the equipment attached to the incinerator, and the sludge can be put into the waste hopper 811 together with the waste. In the figure, 840 is a sludge feeder. In addition, the equipment attached to the exhaust gas treatment process is provided with a nitrogen compound blowing mechanism 870, which is used to blow nitrogen compounds into the flow path of the combustion exhaust gas.

521138 V. Description of the invention (93) ------- In the waste incineration equipment according to the above structure, the waste and sludge put into the waste hopper 811 are sent to the combustion chamber 8 丨 2. In the combustion chamber 812, the waste and sludge are ashed and discharged through the steps of drying, burning, and post-combustion. At this time, as mentioned above, ammonia (NH3) or a compound having an NH2 group can be suppressed because the nitrogen-containing components in the sludge entering together with the waste undergo pyrolysis during the drying process or the initial stage of the combustion process, thereby suppressing the above. Generating reactions of dioxins. Therefore, the content of dioxins in the exhaust gas produced by the combustion chambers 8 and 2 is reduced. ^ The combustion exhaust gas generated in the combustion chamber 81 2 is discharged from the secondary combustion chamber 814 after being treated by the boiler 815 and the dust collector 816 in the same manner as in the case of the device in FIG. 27) and is dispersed in the atmosphere. At this time, an ammonia gas is blown into the combustion exhaust gas flow path of the outlet of the boiler 8150 from the nitride blowing mechanism 870. Due to this blowing of ammonia gas, dioxins produced in the combustion gas flow path can be reduced. As mentioned above, since the sludge is loaded into the incinerator together with the waste and nitrogen compounds are blown into the exhaust gas flow path, the generation of dioxins in two places (ie, the incinerator and the exhaust gas flow path) can be suppressed. FIG. 29 is an explanatory diagram showing a third example related to the embodiment of this aspect. In Fig. 29, the same components as those in Fig. 27 or Fig. 28 are designated by the same reference numerals, and a description thereof will be omitted. In this embodiment, in addition to the structure shown in Fig. 28, a nitrogen compound adding mechanism 860 is provided to add a nitride to the sludge feeder 840. The nitrogen compound adding mechanism 860 forms a structure having a hopper 861 for storing urea powder and a urea feeder 862. Attached to the exhaust gas treatment process

Page 521 138

The belt equipment is provided with a nitrogen compound blowing mechanism 870, which is used to blow nitrogen compounds into the flow path of the combustion exhaust gas. At the waste incineration facility t configured as described above, the waste is put into the waste one plus t bucket 811 'and the sludge is supplied from the sludge supply machine 84. When the sludge is supplied, the urea powder is supplied from the urea feeder 862 to the sludge feeder 840, and the urea sludge is then put into the waste hopper 81. Secondly, the sludge and waste added with pulses are sent to the combustion chamber 8 丨 2. In the combustion chamber 812, the waste and sludge are ashed through various steps of drying, burning, and post-combustion, and are discharged. At this time, as mentioned earlier, ammonia (NH3) or NH2 groups are produced by the thermal decomposition of the nitrogen-containing components in the sludge loaded with the waste and other materials and the additional urea during the initial stage of the drying process or combustion process. Compounds and the like can suppress the above-mentioned dioxin-like formation reaction. Therefore, the content of dioxins in the combustion exhaust gas produced by the combustion chamber 812 can be significantly reduced. The combustion exhaust gas generated in the combustion chamber 81 2 is the same as that in the case of the device in FIG. 27 ′, is discharged from the secondary combustion chamber 8 1 4, and is discharged into the atmosphere after being processed by the boiler 81 5 and the dust collector 8 16. At this time, ammonia gas is blown into the combustion exhaust gas flow path of the outlet of the boiler 815 from the nitride blowing mechanism 870. Due to the blowing of this ammonia gas, dioxins produced by the combustion gas flow path can be reduced. As described above, when the sludge is loaded into the incinerator, urea is added to increase the amount of nitrogen loaded into the incinerator, and the dioxin produced in the incinerator can be further reduced. FIG. 30 is an explanatory diagram showing a fourth example related to the embodiment of this aspect.

Page 521138

V. Description of the invention (95) The incineration equipment shown in this figure is a person with a fluidized bed incinerator. In the figure, 820 is a fluidized bed incinerator, and 83 is a waste feeder. machine. Moreover, 825 is a gas cooler, which is used to spray the combustion exhaust gas with water to directly cool, and 8 2 6 is a dust collector. &quot; ° /; IL Moving bed type vertical furnace 8 2 0 is designed to be divided into flowing layer sections 8 2 3, and those who use the air blown from the wind box 821 to form the flowing layer during operation, and above it The remaining width section 824. Nozzles 8 and 24 are provided with a nozzle for blowing in air for secondary combustion.

Furthermore, a mechanism 87 () is provided for the equipment attached to the exhaust gas treatment process, and is used to blow nitrogen compounds into the flow path of the combustion exhaust gas. This nitrogen compound blowing mechanism 870 has a structure including an ammonia gas storage tank 871, a flow rate regulator 872, and a nozzle officer (not shown). The ammonia nozzle is inserted into the combustion exhaust gas flow path at the outlet of the gas cooler 8 2 5.

In the garbage incineration facility according to the above-mentioned structure, waste is loaded into the incinerator 8 2 0 from the waste supply machine 8 300, and sludge is loaded from the sludge supply machine 8 3 0, and the loaded waste is disposed of. Materials and sludge are dried in the fluidized bed while heating up and burning. In the fluidized layer, the amount of air blown in is restricted, and a combustion state that is likely to cause the generation of dioxins is formed in the conventional technology. However, in this embodiment, since the nitrogen component is thermally decomposed into the sludge loaded with the waste, ammonia (NH3) or a compound having a NJJ2 group can be used to suppress the above-mentioned dioxin generation reaction. Therefore, the combustion exhaust gas generated by the moving layer portion 823 contains combustible gas such as h2, c0, (: ratio, etc.) blows air into the remaining portion 824 to perform a secondary combustion treatment for combustible gas combustion.

Page 101 521138 V. Description of the invention (96) The combustion exhaust gas discharged from the incinerator 8 2 0 is cooled to a temperature of about 20 0 ~ 4 0 0 ° C in the gas cooler 8 2 5 and sent to the dust collector 826 to After dust removal, it is released and dispersed in the atmosphere. At this time, the operation of blowing ammonia gas from the nitride blowing mechanism 870 into the combustion exhaust gas flow path at the outlet of the gas cooler 825 is performed. Due to this blowing of ammonia gas, the amount of dioxins produced in the combustion exhaust gas flow path can be reduced. &amp; Also, although the waste incineration equipment equipped with a grate type incinerator or a moving bed type incinerator is shown in FIGS. 27 to 30, the incinerator to which this aspect can be applied has not been affected by the above two types. Restrictions, for example, kiln-type incinerators are also possible. In addition, in FIGS. 27 to 30, the structure in which the step-type grate is disposed is shown for the grate-type incinerator, but this aspect is not only applicable to the step-type structure. It is possible to apply this aspect to the function of the drying belt. In addition, although in Fig. 27 to Fig. 30, the nitriding tube installed in the exhaust gas treatment process is inserted into the outlet of the steel furnace 81 5 and the nitrogen nozzle is blown into the boiler. The exit section of 815, but this arrangement is an example of the case where the setting is set = furnace. The nitrogen compound blowing place may not be limited to the exit of ^ ^. The same applies to equipment equipped with a gas cooler, and the space where the nitrogen compounds are blown in is not necessarily limited to the outlet of the gas cooler. In this way, the blowing place of the nitrided material is not necessarily limited to the outlet of the boiler or gas cooler. It can be blown into the gas cooler of the appropriate part of the boiler that is cooled to below 65 °. Furthermore, although the device shown in FIG.

Page 102 521138 V. Explanation of the invention (97) The urea is added to the waste in the state of an aqueous solution and the setting in FIG. 29 = the sludge is added in the powder state, but in the present invention, the state of adding lice Not restricted. In the case of compounds, 敫 τ ++ 々 is prepared to add a lot of milk to the waste. In order to make the chaotic compounds in the waste as unevenly distributed as possible to the waste *, it is best to add it as an aqueous solution. Adhesion: = 丄: When nitrogen compounds are added to the sludge, in order to reduce the amount of tritium water, it can be added in the state of powder. =, "In Fig. 27 to Fig. 3, the nitrogen compounds blown into the exhaust gas flow path are not restricted by gaseous substances, and for example, they can be aqueous solutions such as ammonia or urea. (Example 1 ) Let's say the result of the incineration of the waste under the E-type test equipment. Use municipal waste for the waste sample and sewage π mud for the sludge test (moisture = 77wt%, N = 6wt% ( Dry basis)). In addition, for the nitrogen compounds entering the exhaust gas flow path, ammonia gas is used. Then, the municipal waste and the lower cement are charged into the incinerator at a ratio of municipal waste, 2000 kg / H and sewage sludge 200 kg / H. Incineration. At this time, 'Urea is added at a ratio of 1 kg / H to the charged waste gas, and the combustion exhaust gas generated by the pollution of the furnace passes through the gas cooling and cooling section, and then the ammonia gas is applied to the exhaust gas at a flow rate of 0.35Nm3. Blowing in the duct. At this time, the temperature in the exhaust duct is about 30 (rc.) In the incineration of the waste according to the upper part, the concentration of dioxin in the discharged exhaust gas is measured. The results show that the dioxin class = 2, 3, 7, 8-TCDD equivalent conversion concentration A low value of the average value, based only equivalent of urban garbage incineration purposes and when only a few of the common exhaust gas treatment

Page 103 521138 V. Description of the invention (98) About 10% of the value. In this way, during the incineration of waste, the fact that the urea-added sludge was loaded with the waste and ammonia gas was blown into the exhaust gas flow path can significantly reduce the dioxin content in the combustion exhaust gas was confirmed. According to this aspect, sludge or nitrogen compounds are incinerated together with waste and incinerated, so that the nitrogen-containing components are thermally decomposed to produce nitrogen compounds having the effect of inhibiting dioxin, and the nitrogen compounds are blown into The combustion exhaust gas flow path can greatly reduce the amount of dioxin produced in two places (in the incinerator and the combustion exhaust gas flow path). In addition, since the operation of blowing nitrogen compounds into the combustion exhaust gas flow path is performed at a temperature of less than 6Ot, it is difficult to initiate a denitration reaction, and the effect of inhibiting the dioxin generation reaction X can occur effectively. Furthermore, when using a waste incineration device provided with a device for charging sludge or nitrogen compounds into an incinerator and having a nitrogen compound blowing device at the exit of a boiler or gas cooler, it is possible to suppress the waste The sludge or nitrogen compounds of the dioxin formation reaction are charged into the incinerator, and it is possible to blow the nitrogen compounds into the combustion exhaust gas flow path, which can effectively inhibit the dioxin generation reaction, and obtain the above effect. Aspect 14 of this aspect is the waste incineration method and device that can reduce the amount of dioxin-type with good efficiency and discharge the waste gas generated by the incinerator to treat the waste gas and then put it into the waste incineration system in the atmosphere. . The system configuration of the waste incineration system is shown in Figs. In this figure, 901 is an incinerator with a waste supply hopper 9 〇a, 902 is a cooling device composed of a cooling tower, a steel furnace, a heat exchanger, etc., and 903 is an exhaust gas. Treatment equipment 'is used to remove this 1 or §〇 from the cooled exhaust

Page 104 521138 V. Description of the invention (99) Acid gas, 904 is an electric dust collector, 905 is an exhaust fan, and 906 is a chimney, and these components are connected in series by a flue. In the above-mentioned system, the waste which is put into the incinerator by a crane from a garbage pit is dried and burned 'in the incinerator, and the unburned part is completely burned here. After the combustion, the combustion exhaust gas is discharged outside the furnace, and is discharged from the chimney 9 06 after being treated by the cooling device g 0 2, the exhaust gas treatment device 9 0 3, and the electric dust collector 9 04. In addition, the electric dust collector 904 is characterized in that, as is well known, it is possible to collect fine particles without being affected by the properties of gas or dust. However, in the case of such a waste incineration system, the exhaust gas discharged from the furnace outlet of the incinerator 9001 is exhausted into the electric dust collector at a temperature of about 300 ° C after passing through the cooling device 902 and the exhaust treatment device 903. In many cases, it is necessary to perform dust collection. Therefore, the problem occurs as follows: the temperature of about 300 is the temperature at which dioxin is easily generated. If the combustion exhaust gas is passed through the electric dust collector at the temperature of about 300t, the concentration of dioxin becomes high. The state is discharged from the chimney 906. ~ — The technical purpose of this aspect is to maintain a certain combustion state in the incinerator by introducing a simpler device to reduce the concentration of dioxin in the incinerator ', and it is also possible to suppress the occurrence of dioxin in the electric dust collector. The strict method of waste gas incineration is to provide a waste supply system in a waste incineration system in which an incinerator, a cooling device, an exhaust gas treatment device, an electric dust collector, an exhaust fan, and a smoke box are connected in series. Feed hopper and sludge supply hopper, and equipped with dust collector inlet temperature control device, so that when the waste is incinerated, the sludge is mixed and the electric dust collector can be used at 521138 V. Description of the invention (100) 2 3 0 ° C It is controlled by the following operating modes. In addition, the waste incineration method related to this aspect is characterized by controlling the cooling equipment so that the temperature of the inlet of the electric dust collector of the exhaust gas can be lower than 230 ° C. In addition, it is designed to have a structure in which a k-degree sensor for exhaust gas fermentation degree detection is provided at the entrance of the electric dust collector, and the cooling device is controlled so that the temperature at the entrance of the dust collector can be less than 230 ° C. Hereinafter, a waste incineration method according to this embodiment and an apparatus used in the method will be described with reference to FIG. 33. Fig. 33 is a system configuration diagram of a waste incinerator according to this embodiment, in which the same parts as those of the conventional example (Fig. 35) are given the same symbols. In the waste incineration device of this embodiment, in addition to the waste supply hopper 901a in the incinerator 901, a sludge supply hopper is provided, and an exhaust gas is provided at the entrance of the electric dust collector 904. For temperature detection, the crystal 9 is used to control the cooling device 902 when the temperature of the temperature sensor 907 exceeds 230 ° C or does not exceed: When the temperature rises sharply at this stage, the temperature is controlled to increase the temperature. The dust collector 904 is placed at 23 (rc to reduce the temperature of the equipment 902 here λ-to connect &amp; &gt; to reduce the temperature of the second temperature of the exhaust gas through the water spray atmosphere medium control device 90S, plus the 'cooling tower' to receive When the order of the dust collector inlet $ / power water spray is instructed, the amount of water spray can be increased, and the angle of the water spray is further increased.

Page 106 521138 V. Description of the invention (101) The method of incineration of materials will be described. Gansam, pull + + / use the crane to remove the waste from the garbage pit and supply it from the supply hopper 901 to the U 901 produced by the field such as the sewage treatment process, and put the bucket 9 〇ib . It was put into the incineration plant and dried in the feed, mixed with fire and burned. The produced γ-dagger and waste were all downstream of the furnace. Therefore, only the exhaust gas from the toilet is sent from the furnace outlet to lower. For the reason that “the concentration of dioxin can suppress dioxin, compared with the case of only incineration of waste, the explanation is omitted here.” In other dust states already described in the above, “waste and pollution In the case of mud-mixed burning, use the electric 隼 | machine 9 4: reduce the operating temperature to reduce the concentration of dioxin. The concentration of dioxin in the vicinity of 30 0 t is collected in the second series because it avoids valley easy production dioxin. The cured seat cake is young and low, and it is operated under the low plate to suppress the view of life. This is a graph of the relationship between the increase rate of dioxin on the vertical axis A2 obtained by the experimental research of the inventors of the present case, Basin 1 is the increase rate of dioxin, and the horizontal axis is the inlet temperature of the electric dust collector. 8 21 (1) This result shows that the temperature of the electric dust collector is set to 230. (: The following (preferably below Yigeng) can be used in the electric dust collector. The concentration of dioxins is not reduced within 90% of the dioxins with good efficiency. The temperature sensor 7 and the temperature control device 8 installed at the entrance of the electric dust collector are used to monitor the exhaust gas temperature. While in When the temperature sensor 23 (/ V value is "230", or when the temperature rises sharply at the stage when the detection value of the temperature sensor 7 does not pass, the inlet temperature control device of the dust collector is made. 102) 9 08 The first spray of the cooling device 902, a, the spray amount of water of the device 902, and increasing the increase in instructions to increase the cooling will be collected by electricity. When the dust machine 4 is running '2 5 22: The degree of cooling of milk can be reduced in the way that it can be reduced by two degrees when it is managed. The second degree can be 230 or less. I ^ Stain% ^ The effect of dioxin (concentration), and the reduction of dioxin due to this The multiplying effect of the effect can more effectively reduce the concentration of dioxin. The effect of the 胄 effect is also pressed, and automatic control is implemented in the entire system ^ ^ ^ ^ Θ07 The detection value is used as the operating table. / Dish degree sensing benefits can be captured by the electric dust collector 904 to remove and add small pieces ^ can be compiled. From the tobacco bacteria are released into the atmosphere. The ritual of rice pregnancy is the effect of the state of the furnace, borrowing urban garbage and sludge Said to burn a2, the exhaust gas is cooled to 21 (rc after the rc cooling dust collection 27 (1 ^^^ «, # 之The dioxin concentration in the occasion is compared with the dioxin concentration in the case where only municipal waste is burned and the electric dust collector is operated under the condition of ts. The result is that the dioxin concentration of the former (according to this aspect) is about 90% less than the latter Confirm. # 士 ^ ^ According to this aspect, in a kind of waste consisting of an incinerator, a cooling device, an exhaust gas treatment device, an electric dust collector, an exhaust fan, and a smoke free smoke. 1 house connected in series under one house In the incineration system, as the sludge is burned while f ° waste is being burned, the electric dust collector can be operated at a temperature of 230 ° C, which can reduce the generation of dioxins with good efficiency. Utilization] As described above, the method and apparatus for incineration of wastes according to the present invention convert waste, sludge, and plastic in a furnace E-type incinerator and a fluidized bed incinerator.

Page 108 521138 V. Description of the invention (103) The co-firing of rubber, solid solid fuels, sulfur compounds, etc., when the combustion control is performed according to the SOx concentration and the further generation of nitrogen compounds, has the effect of inhibiting the production of dioxins, which is industrially The effect is great. [Explanation of component numbers] 1: Incinerator 2: RDF feeder (Figure 1) 2: Normal waste feeder (Figure 2) 3: Sludge feeder 4: Fluid bed 5: Exhaust gas treatment device 6: Chimney 9 : Flow layer I 0: Garbage chute II: Drying section 12: Combustion section 1 3: Post-combustion section 14: Secondary combustion chamber 15 ·· Main ash chute 2 0: Waste plastic input machine 21: Sand layer section thermometer 2 2 : Furnace outlet thermometer 23: Furnace outlet oxygen concentration detector 1 01: Fluidized bed incinerator 102: Waste input machine

Page 109 521138 V. Description of the invention (104) 1 0 3: Sludge feeder (Fig. 7) 1 03: Sulfur-containing component supply device (Fig. 8) 104: Dispersion plate 105: Furnace outlet 106: SOx concentration Meter 107: control device or measuring device 11 0: exhaust gas treatment device 11 2 ·· chimney

127: SOx concentration meter 128: Control device or measuring device 130: RDF supply device 132: Sulfur component supply device 201: Waste storage tank 202: Sludge storage tank 203: Sulfur powder storage tank 204: Incinerator 205: Waste Material supply pipeline

2 0 6: Sludge supply line 2 0 7: Sulfur powder supply line 211: Waste storage tank 2 1 2: Sludge storage tank 21 3: Sulfur powder storage tank 21 4: Fluidized bed incinerator 21 5: Waste Supply line

Page 110 521138 V. Description of the invention (105) 2 1 6: Sludge supply line 21 7: Sulfur powder supply line 2 1 8: Dispersion plate 2 1 9: Furnace outlet 220: SOx concentration meter 221: Control device or measuring device 222: Exhaust gas treatment device 224: Chimney 2 2 5: Wind box 3 0 1: Garbage crane 3 0 2 · Garbage hopper 3 0 3: Garbage chute 3 0 4: Conveyor 3 0 5: Sludge and / or containing Sulfur component introduction port 3 0 6: Blow pipe 4 0 1 · Garbage hopper 402: Garbage chute 403: Drying section grate 404: Combustion section grate 405: Post-combustion section grate 40 6: Air 407 ·· Blow pipe 408 : Sludge and / or sulfur-containing component introduction port 40 9: Carrier gas supply port

Page 111 521138 V. Description of the invention (106) 410 Main ash chute 411 Main combustion chamber 412 Secondary combustion chamber 510 Grate incinerator 511 Waste hopper 512 Combustion chamber 513a: Drying section grate 513b: Combustion section furnace篦 513c: Post-combustion furnace grate 514 Secondary combustion chamber 515 Exhaust gas treatment process 516 Chimney 520 Fluid bed incinerator 521 Wind box 523 Flow layer section 524 Space section 525 Nozzle 526 Exhaust gas treatment process 527 Chimney 530 Waste supply machine 540 Sludge feeder 550 Mechanism 551 Aqueous solution storage tank 552 Urea supply pump

Page 112

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Page 113 V. Description of the invention (107) 553 Urea spray nozzle tube 560 Nitrogen compound adding mechanism 561 Urea powder storage hopper 562 Pulse feeder 570 Mechanism 571 Ammonia storage tank 572 Flow regulator 610 Furnace-type incinerator 611 Waste hopper 612 Combustion chamber 613a: Drying section grate 613b: Combustion section grate 613c: Post-combustion section grate 614 Secondary combustion chamber 615 Exhaust gas treatment process 616 Chimney 620 Fluidized bed incinerator 621 Wind box 622 Dispersion plate 623 Flow layer section 624 Remaining section 625 Nozzle 626 Exhaust gas treatment process 627 Chimney 521138 V. Description of the invention (108) 630 Waste supply machine 640 Sludge supply machine 650 Mechanism 651 Urea solution storage tank 652 Urea supply pump 653 Urea spray nozzle tube 660 Nitrogen compound adding mechanism 661 Urea powder storage tank 662 Urea powder feeder 670 Waste 710 Furnace type incinerator 711 Waste charging hopper 712 Burning chamber 713a: Drying section grate 713b: Combustion section grate 713c: Post-combustion Section furnace 714 Secondary pk Burning chamber 715 Exhaust gas treated 716 720 chimney flow bed incinerator 721 bellows 723 flows layer 724 over portion 725 of the nozzle portion

Chapter 114

521138 V. Description of the invention (109) 726 Exhaust gas treatment process 727 Chimney 730 Waste supply machine 740 Sludge supply machine 750 Nitrogen compound addition mechanism 751 Storage tank for urea solution 752 Urea supply pump 753 Urea spray nozzle tube 760 Waste 810 Furnace Type incinerator 811 Waste hopper 812 Combustion chamber 813a: Drying section grate 813b: Combustion section grate 813c: Post-combustion section grate 814 :: Secondary combustion chamber 815: Boiler 816: Dust collector 817: Chimney 820: Flow Bed incinerator 821: bellows 823: flow layer section 824: margin section 825: gas cooler

Chapter 115

521138 V. Description of the invention (110) 826 Dust collector 830 Waste feeder 840 Sludge feeder 850 Nitrogen compound adding mechanism 851 Urea solution storage tank 852 Urea supply pump 853 Urea spray nozzle tube 860 Nitrogen compound adding mechanism 861 Urea powder storage Feeding hopper 862 Urea feeder 870 Nitrogen compound blowing mechanism 871 Ammonia gas storage tank 872 Flow rate adjustment / r / r 880 waste 901 incinerator

9 0 1 a: Waste supply hopper 9 0 1 b · Sludge supply hopper 9 0 2: Cooling equipment

9 0 3 ·· Exhaust gas treatment equipment 904: Electric dust collector 9 0 5: Extraction fan 9 0 6: Chimney 9 0 7: Temperature sensor 9 0 8 · • Dust collector inlet temperature control device

P.116 521138 Brief description of the drawings [Simplified description of the drawings] The cross section is a cross-sectional view showing the schematic structure of the fluidized bed used in the embodiment of the present invention. Bed-type incinerator ϊ; = ί ϊ T is a diagram of the general structure of a fluidized bed incinerator. The θ is a cross-sectional view showing a schematic structure of the furnace used in the embodiment of the present invention. Fig. 4 of a b-type tear burner is a sectional view showing a schematic structure of a flow used in an embodiment of the present invention. Type A furnace FIG. 5 is a flowchart showing an embodiment of the present invention. FIG. 6 is a diagram showing an embodiment of the present invention, which is a graph showing the relationship between the SOx concentration and the dioxin concentration, and the relationship with the toxic substance: mouth (IS + SO3) concentration. Fig. 7 is a flowchart showing a fluidized bed incinerator of the present invention-Fig. 8 is a flowchart showing an embodiment of the present invention. FIG. 9 is a flowchart showing an embodiment of the present invention. FIG. 10 is a diagram showing the waste incineration device of the present invention. ^ 1 1 [SI VL — — J ^ Slightly &quot; FIG. 0 is a diagram showing another diagram of the waste incineration device of the present invention. t 略 Figure 12 is a schematic diagram showing an example of the waste incineration device of the present invention. Fig. 13 is another schematic view showing the waste incineration device of the present invention. FIG. 14 of the listed structure is a schematic diagram showing an example of the structure of a waste incinerator of the present invention. ,,mouth

Page 117 yzii3 ^

The illustration of a simple illustration shows the first example of the embodiment of the present invention. The third example of the first embodiment of the present invention shows the third embodiment of the first embodiment of the present invention. An explanatory diagram showing the present example. Fig. 18 is an explanatory diagram showing a fourth example related to the embodiment in one aspect of the present invention. Fig. 19 is an explanatory diagram showing a first example related to an embodiment in another aspect of the present invention. Fig. 20 is an explanatory diagram showing a second example related to an embodiment in another aspect of the present invention. Fig. 21 is an explanatory diagram showing a third example related to the embodiment in another aspect of the present invention. Fig. 22 is an explanatory diagram showing a fourth example related to the embodiment in another aspect of the present invention. Fig. 23 is an explanatory diagram showing a first example related to an embodiment in another aspect of the present invention. Fig. 24 is an explanatory diagram showing a second example related to an embodiment in another aspect of the present invention. Fig. 25 is an explanatory diagram showing a third example related to the embodiment in another aspect of the present invention. Fig. 26 is an explanatory diagram showing a fourth example related to the embodiment in another aspect of the present invention.

Page 118 521138 Brief Description of Drawings Figures 2 to 7 are explanatory diagrams showing the first example related to the implementation form in another aspect of the present invention. Fig. 28 is an explanatory diagram showing a second example related to an embodiment in another aspect of the present invention. Fig. 29 is an explanatory diagram showing a third example related to the embodiment in another aspect of the present invention. Fig. 30 is an explanatory diagram showing a fourth example related to the embodiment in another aspect of the present invention. Fig. 31 is a diagram showing an example of a process for treating the combustion exhaust gas in a waste incineration facility provided with a boiler. Fig. 32 is a diagram showing an example of a combustion exhaust gas treatment process in a waste incineration facility provided with a gas cooler. Fig. 33 is a system configuration diagram of a waste incinerator according to an embodiment of the present invention. Figure 34 is a graph showing the relationship between the operating temperature of the electric dust collector and the increase rate of dioxin. Fig. 35 is a system configuration diagram of a conventional waste incinerator.

Chapter 119

Claims (1)

521138 1. A method for incineration of waste includes: a preparation step of a sludge having a moisture content of 65-90 wt%, a dry sulfur content of 〇1_2 〇wt%, and a nitrogen content of 1 -10 wt%; 3,000,000-1,600kcal / kg and moisture content of 20% solid waste solid fuel and low calorific value of 1,500-4,00 Okcal / kg and moisture content of 30 ^ 0wt%, such as municipal waste The solid solid fuel or the general waste preparation step selected from the group consisting of general waste; and, in a waste incinerator, the sludge and the solid solid fuel or the waste selected from the group Steps of general waste co-firing. …, 2. The method according to item i in the scope of patent application, wherein the co-firing rate of the sludge and the solid solid fuel is 1070%. 3. The method according to item 丨 in the scope of patent application, wherein the co-firing rate of the sludge and the general waste is 10% to 40%. 4. The method according to item 2 of the patent application, wherein the waste incinerator is a fluid bed furnace. 5. The method according to item 3 of the scope of patent application, wherein the waste is a grate furnace. 6. The method according to item 3 of the scope of patent application, wherein the waste incinerator is a fluid bed furnace. 7. · A method for incineration of waste includes: / preparation steps for waste / plastics and waste plastics with a low calorific value of 4,500 kcal / kg or more; the sludge and the waste are disposed in a waste incinerator Plastic mixing step; and controlling the exit temperature of the waste incinerator to 900 ~ 丨, 2000c and Page 120 521138 6. Scope of patent application Those who control the oxygen concentration to 3-1 2%. 8. The method according to item 7 of the scope of patent application, wherein the waste incinerator is a furnace having a fluidized bed, and the temperature of the sand layer forming the fluidized layer is 380-450 ° C. 9. A method for incineration of waste including: a step of mixing waste with sludge in a waste incinerator; a step of measuring the SOx concentration of the combustion exhaust gas in the waste incinerator; and a measurement based on the SOx concentration The value controls the supply of the sludge and / or the supply of the waste. I 0 · The method of claim 9 in which the waste incinerator is a furnace with a fluidized bed. II. The method according to item 9 of the scope of patent application, wherein the SOx concentration of the combustion exhaust gas is 100 to 2,000 ppm, and the SOx concentration is measured in the furnace or at the furnace outlet. 1 2-A method for incinerating waste includes: a step of mixing the waste with a sulfur-containing component in a waste incinerator; a step of measuring the SOx concentration of the combustion exhaust gas in the waste incinerator; and The supply amount of the sulfur-containing component and / or the supply amount of the waste is controlled based on the measured value of the SOx concentration. 1 3 · The method of claim 12 in the scope of patent application, wherein the waste incinerator is a furnace with a fluidized bed. 14. The method according to item 12 in the scope of patent application, wherein the SOx concentration of the combustion exhaust gas is 100 to 2,000 ppm, and the sox concentration is measured in the furnace or at the furnace outlet. Page 121 521138 VI. Application scope of patent 1 5-A method for incinerating waste includes: a step of mixing sulfur-containing components with solid solid fuel in a waste incinerator; and '&gt; The SOx concentration of the combustion exhaust gas is measured in the incinerator, and the supply amount of the sulfur-containing component and / or the supply amount of the solid solid fuel is controlled based on the measured value of the SOx concentration. 16 · The method according to item 15 of the scope of patent application, wherein the Sox concentration of the combustion exhaust gas is measured in a furnace, a furnace outlet, or a chimney. 17. The method according to item 15 of the scope of patent application, wherein the waste incinerator is a furnace with a fluid bed, and the sox concentration of the chimney is 50 to 400 ppm. 18. · A method for incineration of waste includes: supplying sulfur-containing component powder to a sludge to incinerator supply line or a waste to incinerator supply line; making the sludge and the waste in a waste incinerator The step of co-firing the materials; and measuring the SOx concentration of the combustion exhaust gas in the waste incinerator, and controlling the confessed amount of the sulfur-containing component powder based on the measured value of the SOx concentration. The method of the eighteenth aspect of the invention, wherein the SOx intensity of the exhaust gas is measured in the furnace, the furnace outlet, or the chimney, and the SOx concentration of the radon is 50 to 400 ppm. In which the waste is incinerated 20 · The method according to item 18 of the scope of patent application The furnace is a furnace with a fluidized bed. 21 · — A method for incineration of waste including: dispersing sludge and / or sulfur-containing components for supply to a waste incinerator 521138 VI. Scope of patent application Steps of Shili refuse adding hopper; and steps of mixing the waste with the sludge and / or the sulfur-containing material in the waste incinerator. 2 2 ^ The method according to item 21 of the patent application, wherein the supplying step includes mixing the sludge and / or the sulfur-containing component with a gas to disperse and supply the waste to the hopper. 2 ^ · The method according to item 21 of the patent application scope, wherein the method of dispersing and supplying the sludge and / or the 3 sulfur component to the waste hopper is to cooperate with the waste, and the waste into the waste The timing of putting in the garbage hopper is Shi Ba 24. The method according to item 21 of the scope of patent application, wherein the method of dispersing the sludge and / or the matter to the garbage hopper is to stop the waste kiln at least 1 time. Stop performer hours ago. 25. A method for incineration of waste includes: a step of drying 3 ί or dispersing sulfur-containing components for supplying to a private incinerator of a waste incinerator; and a step of disposing the waste in the waste incinerator A step of co-firing waste with the sludge and / or the sulfur-containing component. 26 The method of claim 25, wherein the supplying step includes the step of mixing the &gt; 5 mud and / or the sulfur-containing component with a gas on the grate of the drying section. 27. According to the method of the scope of application for patent No. 25, the method of dispersing and supplying the sludge and the sulfur-containing component to the grate of the drying section is to stop the waste incinerator at least 1 Stop performer hours ago. Page 123 521138 VI. Application for Patent Scope 28 · —A method for incinerating waste includes: a step of adding nitrogen compounds to the waste; a step of loading the waste into an incinerator; and a method of incineration of the waste in the incinerator Stepper. 29. The method according to item 28 of the patent application, further comprising: a step of burning the exhaust gas flow path after the sludge is loaded into the incinerator together with the waste and the nitrogen compound is blown into the outlet of the incinerator. 30. The method according to item 28 of the scope of patent application, further comprising: a step of adding the nitrogen compound to the waste and / or the sludge before the waste and the sludge are loaded into the incinerator. 31. If the method according to item 28 of the patent application scope further includes: a step of adding the nitrogen compound to the waste and sludge which have been put in the waste hopper of the incinerator. ^ 3 2 · — A method for incineration of waste includes: a step of sending the waste into a drying zone in a grate type incinerator; a step of adding a nitrogen compound to the waste that is sent; and a step of adding the nitrogen Step of incineration of the waste of the compound 33. As in the method of the scope of patent application No. 32, wherein the step of feeding includes the step of putting sludge into the incinerator together with the waste / 3 4 ·-incineration The method of waste includes: 'the step of loading the waste into a fluidized bed incinerator; the step of burning the waste in the incinerator; and 35 · — A method for incineration of waste includes a step of adding nitrogen compounds to the waste; a step of loading the waste into the incinerator; a step of burning the waste; Steps of blowing nitrogen compounds into combustion exhaust gas below ° C. 36. The method of claim 35 in the scope of patent application, wherein the step includes the steps of farming sludge with the waste into the incinerator / 37 ·-A method of incineration waste includes: Steps of incinerator, cooling device, and electric dust collector incineration device; &lt; a step of mixing the waste with sludge by waste; and controlling the cooling device with the exhaust gas temperature at the inlet of the electric dust collector to be 23 ° Step by step. Wan 38 · —The device for incineration waste includes: an incinerator located in the device for incineration of waste; a waste supply device and a sludge supply device for the purpose of co-firing the waste and sludge in the incinerator; A sox concentration meter used to determine the sox concentration in the furnace or the furnace outlet; and a control device used to control the supply of the sludge and / or the waste according to the sox concentration. 39. The device according to item 38 of the scope of patent application, wherein the incinerator is a fluidized bed furnace. 40 ·-Plants for incineration of waste include: Page 521 138 An incinerator located in a device for incineration of waste; a mixed sulfur burning device and a waste supply device for the sulfur-containing components and waste in the incinerator; 'for measuring the SOx concentration in the furnace or the furnace outlet sox concentration meter; a control device that is used to control the supply amount of the sulfur-containing component and / ^ 窳 according to the SOx concentration. / μ exhausted product Where the incinerator is a stream 41. For example, the device of the patent application scope No. 40 moving bed furnace. 42 · —The device for incineration of waste includes: an incinerator located in the device for incineration of waste; the supply of the $ sulfur knife for the purpose of the mixed incineration of sulfur-containing components and solid solid fuel in the incinerator The device and the supply of the solid solid fuel; wear; ..., a ... ox concentration meter used to determine the ox concentration in the furnace, the furnace outlet, or the chimney; and &amp; used to control the sulfur content Those who control the supply of components and / or the waste. '4 3 · The device according to item 42 of the patent application scope, wherein the incinerator is a fluid bed furnace. 44. A device for incineration of waste includes: an incinerator located in the device for incineration of waste; a device for supplying sludge to the incinerator and a device for supplying waste; and a device installed in the sludge and the waste Those who supply powders of sulfur-containing components in the incinerator's supply line. Page 126 521138 6. Application scope of patent 4 5 · The device of scope 44 of patent application also includes: SOx concentration meter used to measure SOx concentration in furnace, furnace outlet, or chimney; and A control device for controlling the supply amount of the sulfur-containing component powder according to the measurement value of the SOx concentration meter. 46. The device as claimed in claim 44 in which the incinerator is a fluid bed furnace. 47 · —The device for incineration of waste includes: an incinerator used to mix the sludge and / or sulfur-containing components with the waste; a waste hopper attached to the incinerator; and Sludge and / or sulfur-containing components are dispersed to be supplied to the blower of the refuse hopper. 48 · —A kind of device for incineration of waste includes: an incinerator used to co-firing sludge and / or sulfur-containing components with the waste; a grate located in the drying section of the incinerator; and The sludge and / or sulfur-containing component is dispersed to be supplied to a blower above the grate in the drying section. 4 9. A device for incineration of waste includes: a device for adding nitrogen compounds to wastes charged into the incinerator; and a person for blowing nitrogen compounds into the flow path of the combustion exhaust gas. 50. The device according to item 49 of the scope of patent application, further comprising: a sludge supply machine for loading sludge into the incinerator; and Page 127 521138 VI. Scope of patent application Those who add nitrogen compounds to the sludge loading device. 51 · —Incinerator waste devices include: · an incinerator with a grate; and an internal device for supplying nitrogen compounds to a drying zone on the upper part of the β-height of the incinerator. 52. The device according to item 51 of the scope of patent application, further comprising: 3 sludge feeders, which are used to load sludge into the incinerator. 53 · —A kind of waste incineration device includes: an incinerator with a fluid bed; and a nitrogen compound adding device for blowing the nitrogen compound into a region before the secondary combustion in the remaining width of the fluid bed By. 54. The device according to item 53 of the scope of patent application, further comprising: a mud supply machine, which is used to supply sludge to the incinerator. 55 · —The device for incineration of waste includes: an incinerator located in the device for incineration of the waste; a material adding device for adding nitrogen compounds to the waste loaded in the incinerator; for gas flow, it is located in the A boiler for heat recovery after the incinerator; and less: plutonium, which is used to blow nitrogen compounds into the flow path of the combustion exhaust gas of the boiler outlet. 56 · A device for incineration of waste includes: an incinerator in the device for incineration of the waste; lice compounds are added to the device, and are used for the waste in the incinerator Page 128 521138 6. Adding nitrogen compounds within the scope of patent application; for gas flow, a gas cooler located behind the incinerator; and a device 'used to blow nitrogen compounds into the combustion exhaust gas flow path of the gas cooler outlet By. 57. The device according to item 55 of the scope of patent application, further comprising: a sludge feeder, which is used to load sludge into the incinerator. 58. The device according to item 56 of the scope of patent application, further comprising: a sludge feeder, which is used to load sludge into the incinerator. 5 9 · The device according to the scope of patent application No. 55, further comprising: an adding device, which is used to add the nitrogen compound to the sludge feeder. 60. The device according to item 56 of the patent application scope further includes: an adding device which is used to add the nitrogen compound to the sludge feeder. 6 1 · A device for incineration of waste includes: · an abandonment burner device consisting of an incinerator, a cooling device, an exhaust gas treatment device, an electric dust collector, an exhaust fan, and smoke connected in series under a flue; A waste supply funnel provided in the incinerator; a sludge supply funnel provided in the incinerator; an inlet gas temperature control device of the electric dust collector for connecting the cooling device to the electric dust collector; and &amp; A temperature detector for detecting the exhaust gas temperature of the electric dust collector inlet pulsation detection in the electric dust collector inlet exhaust gas temperature control device.