JP2008057906A - Low pollution incineration equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an incinerating device for incinerating a thrown-in incineration object 8 of general waste, industrial waste or mixed combustible waste thereof at an air ratio in a supercharged state with low pollution. <P>SOLUTION: In this incinerating device, exhaust gas produced from a combustion product incinerator 1 supplying excessive air to incinerate the thrown-in incineration object 8 is kept to a high temperature while being burnt by an exhaust gas combustion burner 18 and an exhaust gas antiflash burner 20, then quickly cooled to a low temperature by an exhaust gas cooling tower 27 and ejected from an exhaust gas chimney 33 via an exhaust gas cleaning tank 34 if necessary. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention incinerates general waste such as paper and wood scraps discarded from households, rubber scrap discarded from production factories and construction sites, industrial waste such as foamed polystyrene and waste plastics, or combustible wastes mixed with these. In this case, the present invention relates to an incineration processing apparatus that reduces the appearance of smoke, odors and other harmful substances, and processes them with low pollution.

Japan is currently importing and producing resources, and many kinds of products such as paper products, wooden products and plastic products are produced in large quantities. In addition, waste products such as paper scraps, wood scraps, rubber scraps and waste plastics are discarded in large quantities. In addition, discarded automobiles and electrical appliances are crushed by industrial shredders, and metals such as iron can be recovered and reused as effective resources, but most of shredder dust such as rubber, plastic and glass is discarded. Is done. As the economy and society gradually shifts to resource recycling, there is an increase in functionality of waste treatment facilities owned by local governments and the emergence of waste treatment companies. There are many. However, the current situation is that most of the industrial waste is incinerated in an incinerator because the recycling cost of industrial waste is higher than the disposal cost.

Many types of incinerators have been developed and used for incineration. For example, in Japanese Utility Model Laid-Open No. 7-2721, a combustion air supply pipe having a number of obliquely upward nozzle holes formed on the peripheral wall surface at the combustion exhaust gas outlet of an industrial waste combustion chamber having a partition wall structure containing water is provided. A smoke extinguishing incinerator with a built-in standing secondary combustion structure chimney ”, and“ No. 3070256 ”,“ Combustion air supply with many air injection holes in the furnace body above the rooster A combustion furnace with a pipe installed and an incinerator input door on the upper side and an ash extraction door on the lower side, an exhaust tube with an exhaust gas temperature raising burner, and a chimney and an air injection hole A small incinerator with an exhaust gas combustion cylinder connected with an empty supply pipe for combustion, and Japanese Patent Application Laid-Open No. 2004-245478, “An incinerator grate in the furnace body and an ash drop damper on the lower side thereof are installed between Directly above the combustion air supply blower A combustion furnace for the main combustion chamber and re-combustion chamber provided burner and water spray nozzle thereabove, there is a small incinerator "which connected the exhaust gas cooling cylinder was internally provided with exhaust cooling air nozzle pipe. Further, in Japanese Patent Application Laid-Open No. 2005-226925, “a thermal decomposition region of an incineration input, a secondary combustion region of cracked gas generated in the thermal decomposition region, and a melting region of ash and carbonized incineration input generated in the thermal decomposition region There are also incinerators comprising an oxygen-enriched burner in which air and oxygen gas are added to fossil fuel in the pyrolysis zone and secondary combustion zone, and in the melting zone. Each of these incinerators removes unburned gases such as carbon monoxide and hydrocarbons in the exhaust gas emitted when incinerating general waste such as paper waste and cardboard, and industrial waste such as rubber waste and plastic waste. Complete combustion is achieved by secondary combustion, greatly reducing dioxins and other harmful substances, as well as smoke and odors.

However, the incinerators disclosed in the above-mentioned actual No. 3070256 and Japanese Patent Application Laid-Open No. 2004-245478 are small-sized, and the actual examples disclosed in Japanese Utility Model Laid-Open No. 7-2721 and Japanese Patent Application Laid-Open No. 2005-226952 are disclosed. As is clear from the drawing, if the incinerated product has a small capacity, and the incinerated material exceeds the incineration capacity or an excessive amount of incinerated material, the incinerated material will start to ignite without igniting soot and odor. There is a problem of inducing air pollution, such as exhausting a large amount of gas, significantly reducing the cooling capacity of exhaust gas, and discharging dioxins and other harmful substances and dust. Due to these problems, the incineration of municipal waste is being reconsidered, such as the prohibition of the use of garbage incinerators owned by schools nationwide.
Japanese Utility Model Publication No. 7-2721 Noto 3070256 JP 2004-245478 A Japanese Patent Laid-Open No. 2005-226952

The inventors of the present invention are able to significantly reduce smoke and odor generated when burning combustible general waste or industrial waste or waste mixed with these wastes in a production factory or within a company, and exhaust gas. Many experiments were conducted with the aim of searching for an incineration method that suppresses the generation and resynthesis of dioxins contained in it. As a result, the object can be achieved by first burning the incineration input at a supercharged air ratio and heating the generated exhaust gas to 800 ° C or higher and then rapidly cooling to 200 ° C or lower. I found out. Based on this knowledge, the present invention further provides a practical method for incinerating to a low pollution level or a non-pollution level by completely burning and rapidly cooling the unburned gas in the exhaust gas, or further performing an exhaust gas purification process with a bag filter. A typical device is provided.

The present invention achieves that purpose, the gist of which is that the main incinerator on the upper side separated from the top and bottom by laying a multi-stage incinerator multi-stage receiving rooster with a multi-stage structure in which one side is high and the other side is low in the incinerator An incinerator charging device provided with an incinerated material charging door that can be opened and closed at the upper part of the uppermost side surface of the incinerated multi-stage receiving rooster, and a combustion burner directed to the incinerated multi-stage receiving rooster. Combustion air jet ring having a bifurcated structure in which a number of nozzle holes are drilled on opposite sides through the incinerated product on the incinerated product multistage receiving rooster on the other side connected to the combustion air supply blower on the side A pipe is arranged for each incinerator multistage receiving rooster branch, and an incinerator wiping bar is provided that travels freely from one side to the other side directly above the uppermost combustion air jet ring pipe. An ash removal unit is installed in the lower incineration chamber. -Combustion incinerator with an incineration ash storage chamber with an incineration ash waste outlet on the bottom side, an exhaust gas combustion furnace with an exhaust gas combustion burner on the exhaust gas delivery side of the combustion incinerator, exhaust gas inflow An exhaust gas combustion air supply blower is provided on the side, an exhaust gas smoke eliminating blower is provided on the other exhaust gas delivery side, and an exhaust gas smoke eliminating burner is provided between them. An exhaust gas cooling air supply blower is provided on the lower side in the exhaust gas circulation pipe to be flown, and a number of nozzles for injecting cooling air from an oblique angle of 10 degrees or less on the side wall surface at a position orthogonal to the exhaust gas circulation direction or upward. This is a low-pollution incineration system in which exhaust gas cooling towers equipped with exhaust gas cooling air injection pipes with holes are sequentially connected, and then an exhaust gas chimney with an exhaust gas induction blower is connected to the exhaust gas inflow side. . If necessary, after the above-described exhaust gas cooling tower, after connecting a flue gas purification tank with a bag filter installed in the exhaust gas flow passage of the exhaust gas circulation tank and an acid gas adsorbing powder supply device on the exhaust gas inflow side, It is a low-pollution incineration processing apparatus to which an exhaust gas chimney provided with an exhaust gas induction fan is connected.

The above-described low pollution incineration processing apparatus of the present invention completely incinerates the incinerated waste in order to incinerate general waste, industrial waste or combustible waste mixed with these at a supercharged air ratio. .
In addition, the exhaust gas generated in the incineration process is completely smokeless and brominated until it burns out at a high temperature, so it is smokeless and brominated, and rapid cooling from high to low temperature suppresses the generation and resynthesis of dioxins. In addition, it can be discharged with low or no pollution.

Hereinafter, the low pollution incineration processing apparatus of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a cross-sectional view of an embodiment of the present invention. In FIG. 1, 1 is a combustion incinerator. Combustion incinerator 1 has a multi-stage structure consisting of two or more stages with one side being high and the other side being low inside or in the inside of incinerator 2 which is constructed by arbitrarily combining heat-resistant materials such as refractory bricks and refractory metal materials. An incinerated multistage receiving rooster 3 that can swing up and down like a seesaw is installed in the lower stage and separated into upper and lower chambers. The separated upper side is the main combustion chamber 4 and the lower side is the post-incineration chamber 5. Provided in the structure. In the main combustion chamber 4 on the upper side, an incineration material input device 7 that contains an incinerated material such as paper waste, wood waste, and waste plastic and that is provided with an incinerated material input door 6 that can be opened and closed on the incinerated material input side, Combustion gas or liquid fuel combustion burner 9 directed from the incineration material introduction door 6 of the incineration material introduction device 7 to the incineration material 8 placed on the incineration material multistage receiving roster 3 is opposed to the upper side. A plurality of nozzle holes 11 on the opposite side of the incinerated product 8 on the incinerated multistage receiving rooster 3 connected to the combustion air supply blower 10 on one side and the incinerated multistage receiving rooster 3 on the other side. A combustion air jet pipe 12 having a bifurcated structure divided into two parts is arranged in each stage of the incinerated multistage receiving rooster 3, and the combustion air jet pipe 12 directly above the uppermost combustion air jet pipe 12 is arranged from one side. The incineration material wiping bar 13 that travels forward and backward is provided. That. In other words, the main combustion chamber 4 on the upper side of the incinerator 2 throws the incinerated material 8 thrown from the incinerated material charging door 6 of the incinerated material charging device 7 and placed on the incinerated material multistage receiving rooster 3 into the combustion burner 9. In the present invention, the incinerator discharge bar 13 of the incinerated multistage receiving roster 3 is provided in a structure that incinerates in a supercharged state while supplying air from the flame and the combustion air supply blower 10. The incinerator 8 that is thrown into the main combustion chamber 4 in a narrow range by running directly above the incinerator input door 6 and piled on the incinerator input side, that is, the high stage side of the incinerated multistage receiving rooster 3 is thinly burned. In the meantime, the effect of improving the incineration function of the incinerated product 8 is improved by improving the flame around the flame ejected from the incinerator burner 9. In addition, by providing the bottom stage of the incinerated multistage receiving rooster 3 in a structure that can swing up and down, the red hot coal and incineration ash fed from the upper stage side can be appropriately shaken off. In the lower incinerator 5 on the other lower side, an ash dropping damper 14 for incinerated ash deposited on the incinerated incinerated product 8 burned on the incinerated multistage receiving rooster 3 is provided so as to be opened and closed downward. An incineration ash storage chamber 16 is provided which accommodates the falling incineration ash and has an incineration ash waste outlet 15 on the incineration ash removal side. Further, the incineration ash waste outlet 15 may be provided with an incineration ash scraping door opening / closing door and a freely accessible incineration ash storage box. That is, the post-incineration chamber 5 is provided with a structure for storing the incinerated ash of the input incinerated product 8 burned on the incinerated product multistage receiving rooster 3 and taking it out of the furnace and discarding it. The combustible incinerator 1 according to the present invention configured as described above efficiently incinerates the input incinerated product 8 placed in the incinerated product multistage receiving rooster 3 in a supercharged state of air. The ash and the like discharged in the above are disposed so as to be disposed of appropriately without interfering with the combustion of the incinerated product 8.

Furthermore, in the present invention, the combustion incinerator 1 having the above-described structure is connected to a post-treatment device for purifying exhaust gas generated when the incinerated product 8 is incinerated to reduce pollution or to eliminate pollution. Yes. Reference numeral 17 denotes an exhaust gas combustion furnace. The exhaust gas combustion furnace 17 is for burning the unburned gas and dioxins contained in the exhaust gas generated and discharged when the incinerated product 8 is burned in the combustion product incinerator 1 at a high temperature. The exhaust gas combustion burner 18 is also a flow furnace for recombusting the exhaust gas. Further, the exhaust gas combustion furnace 17 is used to prevent a rapid temperature drop of the exhaust gas discharged from the combustion incinerator 1 while holding high temperature heat, and is connected close to the exhaust gas outlet of the combustion incinerator 1. It is preferable to do. 19 is an exhaust gas combustion extinguishing furnace, and an exhaust gas extinguishing burner 20 for burning harmful components that generate black smoke, soot, odor, etc. contained in the exhaust gas is provided inside, and the exhaust gas of the exhaust gas combustion furnace 17 On the inflow side, the air supplied from the exhaust gas combustion air supply blower 21 for maintaining the supercharged state of air is exchanged in the exhaust gas circulation direction in the same manner as the combustion air supply blower 10 of the combustion incinerator 1 described above. In addition, a nozzle pipe 23 having a number of nozzle holes 22 for injecting in the direction is provided, and the air supplied from the exhaust gas extinguishing blower 24 is also provided on the other exhaust gas delivery side in the same manner as the incineration air supply blower 10. A nozzle pipe 26 having a large number of nozzle holes 25 for injecting the gas in a direction intersecting with the exhaust gas flow direction is provided. That is, the exhaust gas combustion / extinguishing furnace 19 completely burns a small volume of unburned gas remaining in the flowing exhaust gas, erases black smoke from the exhaust gas, and sends out while promoting decomposition of dioxins. The drive source of the combustion air supply blower 21 may be operated independently, or may be operated in combination with the drive source of the combustion air supply blower 10 of the combustor incinerator 1 and is not particularly limited.

An exhaust gas cooling tower 27 is connected to the exhaust gas delivery side of the exhaust gas combustion / extinguishing furnace 19. FIG. 2 is a longitudinal sectional view showing the internal structure of the exhaust gas cooling tower 27. A water-cooled exhaust gas distribution pipe for flowing the exhaust gas from the upper side to the lower side in order to weaken the flow rate of the exhaust gas sent from the exhaust gas combustion and extinguishing furnace 19. 28, an exhaust gas cooling air supply blower 29 is provided on the lower side, and cooling air is supplied to the side wall surface at a position orthogonal to the exhaust gas circulation direction or in a direction opposite to the exhaust gas circulation direction, that is, from an oblique angle of 10 degrees upward. An exhaust gas cooling air injection pipe 31 having a large number of nozzle holes 30 for injection is provided inside. That is, the ratio of the inner diameter of the water-cooled gas distribution pipe 28 / the outer diameter of the water-cooled exhaust gas cooling air injection pipe 31 is not particularly limited because it varies depending on the distribution speed of the exhaust gas distribution amount, the injection of cooling air, etc. According to the experiments by the present inventors, the tip of the air flow ejected from the nozzle hole 30 is disturbed without significantly disturbing the flow of the exhaust gas at a distance where it collides with the side surface of the water-cooled exhaust gas distribution pipe 28, It is good to arrange about 4 times as a range which promotes rapid cooling. That is, the exhaust gas cooling tower 27 in the present invention cools the high temperature exhaust gas passing through the exhaust gas combustion furnace 17 from the combustor incinerator 1 through the exhaust gas combustion furnace 17 to a low temperature of 200 ° C. or less at a stretch. The resynthesis of dioxins contained in the exhaust gas is completely suppressed, and the influence of dioxins on air, water quality, and soil pollution is significantly reduced, resulting in a low pollution or non-polluted exhaust gas. That is, such an effect is obtained by tilting the thin linear air ejected from the nozzle hole to an orthogonal position or an upper side opposite to the exhaust gas flow direction within 10 degrees so as to cut off the exhaust gas flow direction. This is a result of the effect of being able to cool the exhaust gas that retains high temperature heat at a stroke by injecting at the same time. Therefore, if a thin linear air stream is injected along the flow direction of the exhaust gas, or is injected at an excessive oblique angle exceeding 10 degrees on the opposite upper side, the crossing force between the two is weakened and cooling is performed. The speed becomes slow and the above effect is lost. In this way, the exhaust gas that has been made less pollutant or non-polluted by rapid cooling from a high temperature of 800 ° C. or more to a low temperature of 200 ° C. or less is attracted to the exhaust gas induction blower 32 provided on the exhaust gas inflow side, It is discharged into the atmosphere through the exhaust gas chimney 33.

Furthermore, as another embodiment of the present invention, as described above, a very small amount of harmful substances such as NOx, SOx, HCl, HF and the like in the exhaust gas modified to low pollution by the exhaust gas cooling tower 27 is removed, and no pollution is caused. Therefore, the exhaust gas purification tank 34 is connected to the exhaust gas delivery side of the exhaust gas cooling tower 27. FIG. 3 shows a partial cross-sectional view of the exhaust gas purification tank 34. A bag filter 36 is installed in the exhaust gas flow passage of the exhaust gas circulation tank 35 such as a box and a pipe through which the exhaust gas circulates. An acid gas adsorbing powder supply device 37 that houses and ejects a powder agent that adsorbs an acid gas such as NOx contained therein is provided. In the present invention, the bag filter 36 removes impurities and impure gas in the exhaust gas. As shown in FIG. 3, one or more of the bag filters 36 are arranged in parallel or stacked in the exhaust gas flow path. As long as the exhaust gas can pass through the passage of the bag filter 36, such as assembling in a bellows shape or bending in a U-shape, the arrangement and processing are not particularly limited. That is, the exhaust gas purification tank 34 ejects an acidic gas powder agent such as slaked lime as necessary from an acidic gas adsorbing powder supply device 37, and forms a coating layer on the exhaust gas inflow side surface of the bag filter 36, thereby including in the exhaust gas. It adsorbs acidic gas such as NOx and eliminates even fine dust particles that float, and releases only non-polluting exhaust gas from the exhaust chimney 33 to the atmosphere.

In the main combustion chamber 4 of the combustion incinerator 1, the low-pollution incineration processing apparatus of the present invention configured as described above opens the incineration material input door 6 of the incinerated material input device 7 and incinerates the combustion material incinerator 1. Each of the incinerated materials 8 such as paper waste, wood waste, rubber waste and waste plastic placed on the multi-stage receiving rooster 3 is connected to the combustion air supply blower 10. While supplying air in a supercharged state from the nozzle hole 11 of the combustion air jet pipe 12 having a bifurcated structure provided for each stage, incineration is performed with a flame injected from the combustion burner 9. At this time, in order to efficiently incinerate the input incinerated product 8, when the input incinerated product 8 cannot be supplied with air from the nozzle hole 11 of the combustion air jet pipe 12, the input incinerated product wiping bar 13 is placed. It is good to move the incinerated product 8 which becomes an obstacle by pushing in. Further, the use location of the nozzle hole 11 of the combustion air ejection pipe 12 provided for each stage of the incinerated multi-stage receiving roster 3 is selected according to the loaded amount of the incinerated product 8 or the amount of injected air is determined. By adjusting, it can be incinerated efficiently without consuming wasteful heat energy. The incineration ash generated in the main combustion chamber 4 falls naturally from the incinerated multistage receiving rooster 3 or moves the bottom incinerator multistage receiving rooster 3 that can swing up and down and forcibly drops it to the incinerator. 5 and then completely incinerated ash, and then discarded from the incinerator ash waste outlet 15 to the outside of the furnace.

Exhaust gas having high temperature heat generated when the incinerated product 8 is incinerated in the main combustion chamber 4 of the combustion incinerator 1 is exhaust gas combustion of the exhaust gas combustion furnace 17 connected to the exhaust gas outlet of the main combustion chamber 4. After the unburned gas in the exhaust gas is reburned by the burner 18 to reduce pollution, it is sent to the subsequent exhaust gas combustion / extinguishing furnace 19 at a high speed without lowering to the resynthesis temperature of dioxins. The exhaust gas combustion and extinguishing furnace 19 completely burns even a small amount of unburned gas in the exhaust gas with the exhaust gas smoke extinguishing burner 20 while sending air to the supercharged state by the exhaust gas smoke eliminating blower 24 provided on the exhaust gas sending side. In addition, after the black smoke in the exhaust gas is completely erased, the exhaust gas flowing to the exhaust gas sending side is stirred so that the exhaust gas provided on the exhaust gas sending side is sent back, and the inside of the furnace is heated to a high temperature that promotes the decomposition of dioxins. The gas is sent to the exhaust gas cooling tower 27 while being held. The exhaust gas cooling tower 27 converts the cooling air supplied from the exhaust gas cooling air supply blower 29 into exhaust gas that has high-temperature heat and flows from the upper side to the lower side, and the nozzle holes of the exhaust gas cooling air injection pipe 31. It is rapidly cooled to a low temperature of 200 ° C. or less that completely suppresses the recombination of dioxins by injecting from the orthogonal position to an oblique angle slightly within 10 degrees from 30 ° C. It is reformed into pollution and discharged from the exhaust gas chimney 33.

Further, according to the present invention, an exhaust gas purification tank 34 as shown in FIG. 3 is connected to the exhaust gas delivery side of the exhaust gas cooling tower 27 described above, and the exhaust gas sent from the exhaust gas cooling tower 27 is allowed to pass through. Only the exhaust gas that has been made more pollution-free by the gas adsorbing action of the adsorbed goods is discharged from the exhaust gas chimney 33.

The above-described low-pollution incineration apparatus of the present invention includes the operation of the combustion burner of the incinerator incinerator 1, the operation of setting the incineration temperature, the input amount and input timing of the incinerator input apparatus 7, and the operation of the subsequent exhaust gas combustion furnace 17. A series of connected operations such as operations may be performed manually based on past experience, or each may be performed individually or an operation control circuit may be arranged between each connection to perform operations by automatic control.

Recycling by separating and collecting garbage, reducing waste from charging garbage collection, taking measures for garbage disposal sites, making trash from large cities as landfill materials, creating a new site, harmful from plants, etc. The low-pollution incineration equipment of the present invention is an industrial product in particular, as new and strict prevention measures are taken, such as air pollution prevention measures that determine designated substances and reduce the emission of chemical substances. This is a low-pollution or non-polluting disposal device, and is likely to be used in companies that have production plants and construction sites that produce large amounts of waste in the future.

An embodiment of the present invention is shown in cross section. The internal structure of the exhaust gas cooling tower in this invention is shown with a longitudinal cross-sectional view. It is another Example of this invention, and shows with the longitudinal cross-sectional view of the exhaust gas purification tank in this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Combustion incinerator 2 Incinerator 3 Incinerator multistage receiving rooster 4 Main combustion chamber 5 Post combustion chamber 6 Incinerator input door 7 Incinerator input device 8 Input incinerator 9 Combustion burner 10 Combustion air supply blower 11 Nozzle hole 12 Combustion air ejection pipe 13 Input incineration wiping bar 14 Ash drop damper 15 Incineration ash waste outlet 16 Incineration ash storage chamber 17 Exhaust gas combustion furnace 18 Exhaust gas combustion burner 19 Exhaust gas combustion extinguishing furnace 20 Exhaust gas smoke extinguishing burner 21 Exhaust gas combustion Air supply blower 22 Nozzle hole 23 Nozzle pipe 24 Exhaust gas smoke blower 25 Nozzle hole 26 Nozzle pipe 27 Exhaust gas cooling tower 28 Water-cooled exhaust gas distribution pipe 29 Exhaust gas cooling air supply blower 30 Nozzle hole 31 Exhaust gas cooling air injection pipe 32 Exhaust gas induction blower 33 Exhaust gas chimney 34 Exhaust gas purification tank 35 Exhaust gas circulation tank 36 Grayed filter 37 acid gas adsorption powder feeder

Claims (2)

The incinerator has a multi-stage structure with one side being high and the other side being low, and the incinerator multi-stage receiving roster that allows the bottom stage to swing up and down is installed in the main incinerator on the upper side separated vertically. An incinerator input device provided with an incinerator input door that can be opened and closed on the upper side of the uppermost side wall surface of the receiving rooster, and a combustion burner directed to the input incinerator loaded on the incinerated multistage rooster Combustion air jet with a bifurcated structure in which a combustion air supply blower is connected on one side and a number of nozzle holes are drilled on opposite sides through the incinerated material on the incinerated multistage receiving rooster on the other side An incinerator wiping bar is provided for each incinerator multistage receiving rooster, and an incinerator wiping bar that runs freely from one side to the other side directly above the uppermost combustion air jet pipe, and a lower post-incineration chamber There is an ash drop damper installed on the bottom An exhaust gas combustion furnace with an incineration ash storage chamber with an incineration ash waste outlet on the side, an exhaust gas combustion furnace with an exhaust gas combustion burner on the exhaust gas delivery side of the combustion incinerator, and exhaust gas combustion on the exhaust gas inflow side A nozzle pipe having a number of nozzle holes for injecting the air supplied from the air supply blower in the direction crossing the exhaust gas distribution direction is provided, and the air supplied from the exhaust gas combustion blower is discharged to the other exhaust gas sending side. Exhaust gas combustion extinguishing furnace provided with a nozzle pipe provided with a number of nozzle holes for injection in the direction intersecting with the flow direction, and provided with an exhaust gas extinguishing smoke burner therebetween, and exhaust gas for flowing exhaust gas from the upper side to the lower side In the distribution pipe, an exhaust gas cooling air supply blower is provided on the lower side, and cooling air is injected on the side wall surface at a position orthogonal to the exhaust gas distribution direction or upward at an oblique angle of 10 degrees or less. The exhaust gas cooling tower in which the exhaust pipe for cooling the exhaust gas with the nozzle hole is provided is sequentially connected, and then the exhaust gas chimney having the exhaust gas induction blower is connected to the exhaust gas inflow side. Low pollution incineration equipment. An incinerator multistage structure with one side high and the other side low in the incinerator, and an incinerator stage receiving roster that allows the bottom stage to swing up and down is installed in the upper main incineration chamber, which is separated into the upper and lower main incinerators. Incinerator input device provided with an incinerator input door that can be freely opened and closed on the uppermost side wall surface of the receiving rooster, and a combustion burner directed to the input incinerator loaded on the incinerated multistage load rooster Combustion air jet with a bifurcated structure in which a combustion air supply blower is connected on one side and a number of nozzle holes are drilled on opposite sides through the incinerated material on the incinerated multistage receiving rooster on the other side An incineration wiping bar is provided to dispose the pipe in each incinerator multistage receiving rooster branch stage, and the top combustion air jet pipe is directly movable from one side to the other. There is an ash removal damper installed on the bottom side An exhaust gas combustion furnace with an incineration ash storage chamber with an incineration ash waste outlet, an exhaust gas combustion furnace provided with an exhaust gas combustion burner on the exhaust gas delivery side of the combustion incinerator, and an exhaust gas combustion air supply on the exhaust gas inflow side In an exhaust gas combustion smoke evacuation furnace with a blower and an exhaust gas extinguishing smoke blower on the other exhaust gas delivery side and an exhaust gas smoke eliminating burner in between, and in an exhaust gas circulation pipe for flowing exhaust gas from the upper side to the lower side An exhaust gas cooling air supply blower is provided on the lower side, and a plurality of nozzle holes for injecting cooling air from a position orthogonal to the exhaust gas flow direction or an oblique angle within 10 degrees on the side wall are provided on the side wall surface. Exhaust gas cooling tower with built-in air injection pipe, and exhaust gas purification tank with a bag filter installed in the exhaust gas flow passage of the exhaust gas circulation tank and an acid gas adsorbing powder supply device on the exhaust gas inflow side After sequentially connecting, low pollution incinerator, characterized in that constructed by connecting the exhaust chimney having a waste gas 誘送 blower to the exhaust gas inlet side.

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