JP4051415B2 - Garbage incineration, dust collection, neutralization, and catalytic reaction treatment equipment after incineration, post-catalyst fertilizer plant and its structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a treatment apparatus for the first purpose of combusting waste efficiently and maintaining a high temperature region so that the incinerated material is miniaturized in a uniform state and the water content ratio of the incinerated material is reduced. is there. In a fluidized bed melting furnace that incinerates and melts at the same time, chlorine-based organic compounds that are thermally decomposed in a high-temperature region lose their dioxins because the chlorine molecules are separated and decomposed from phenol groups and benzene nuclei. On the other hand, chlorine molecules combine with high-temperature steam to form chloric acid gas, and the waste gas pipeline is corroded by the high-temperature waste gas. Therefore, means for cooling the waste gas pipeline and heat-resistant and corrosion-resistant material The waste heat boiler is used as the waste gas treatment to reduce the temperature. In addition, it generates electricity using steam from the waste heat boiler.
[0002]
Moreover, the autoclave apparatus which utilizes the calorie | heat amount of this waste gas is devised. Furthermore, it is included in the waste gas that has been reduced to 50 to 80 degrees Celsius by using a rapid cooling device that cools the waste gas temperature to a low temperature range, and a lime solution refined with limestone and an artificial zeolite produced with coal ash. Performs neutralization and catalytic reaction of harmful gases. In addition, a device that collects harmful gaseous heavy metal oxides contained in waste gas, an auto-separator for separating and recovering the lime solution and the zeolite after the catalyst from the solution after the reaction are adopted, and after the recovered catalyst Various zeolite fertilizers are produced from the above-mentioned autoclave apparatus. Furthermore, the recovered lime solution containing calcium chlorate is regenerated in the lime solution purification reaction tank and reused.
[0003]
[Prior art]
In recent years, considerable progress has been made in plant technology for large incineration melting furnaces (more than 4 t / H treatment). Moreover, the environmental pollutants released into the atmosphere during melting by incineration have greatly cleared the national standards. These technologies were developed by major companies with technology grants mainly through business tie-ups with environmental business companies in European countries. It is no exaggeration to say that most of the technology is used. In addition, it cannot be overlooked that other incineration facility manufacturers have been accustomed to improving the existing technology and receiving approval.
[0004]
However, what should be considered according to the situation in Japan is that the country is a small country with a large population and a production-oriented country due to industrialization, and therefore, measures against garbage differ from those in Europe. In other words, the amount of garbage discharged in a small community is large, the collection efficiency of garbage is high, and the processing of domestic waste and industrial waste garbage in the living area is processed in the living area. It is desirable, and in order to advance privatization within the municipality of a predetermined area, it is effective to use a normal medium-sized processing furnace (2 to 4 t / H processing) or a small processing furnace (2 t / H or less) and an existing plant. Improvement and the spread of the flame type gasification and melting furnace are awaited.
[0005]
However, the number of facilities with incinerators currently in Japan is about 5,300 as of the end of 2001, and they are in operation. Among them, about 900 after the end of November 2002 If the existing facilities are to be used continuously at the facilities at the locations, it is necessary to increase the number of bag filters currently installed to strictly observe environmental pollution standards, to stop the operation of existing facilities, or to newly incinerate melting plants. It will be in a state where one has to make a choice such as whether to measure the introduction of.
[0006]
As mentioned above, we will make a major expansion work, stop the operation of existing facilities, or introduce new incineration melting furnace plants that comply with the national standards. The manufacturer's proposal is to recommend only large furnaces that exceed the actual conditions, and still have incineration and melting that can be maintained and managed at low running costs with high safety technology in medium and small processing furnaces and with no economic burden. No furnace plant is known.
[0007]
[Problems to be solved by the invention]
The present patent applicant has already applied for and obtained a patent for a "waste incineration and melting slag plant and its structure" that clears the waste gas standard value at the time of incineration of waste determined by the country. The invention consists of a NiMo plywood with a heat-resistant and corrosion-resistant water-cooled jacket, which is fed with a direct gas-type melting furnace indicated by reference numeral 3 in FIG. It comprises a water-cooled cyclone type separator constituted by a waste gas pipe to be constructed and a NiMo plywood indicated by reference numeral 7, a fly ash recovery tank indicated by reference numeral 8, a rapid cooling apparatus indicated by reference numeral 10, and a bag filter.
[0008]
In the above plant, dioxins generated when incinerating chlorinated organic compounds are decomposed, but hydrochloric acid gas is generated, and in addition, sulfurous acid gas generated when incinerated garbage is added to the incinerator metal. Prevents corrosion to parts. The corrosion prevention technology prevents the deterioration of the durability of each part of the incineration plant that normally occurs. Post-treatment costs such as lime particles and activated carbon discharged after use of the filter and their purchase costs have raised plant maintenance costs.
[0009]
Since the amount of lime powder normally used in the bag filter is required to be 1/20 of the weight of the incinerated material, the usage cost is enormous regardless of whether it is a large, medium or small furnace. In addition, since illegal dumping cannot be performed after use, the waste is again processed in an incineration melting furnace to be slag, which lowers the original incineration operation rate of the garbage and raises the running cost.
[0010]
In addition, the waste gas temperature discharged from the water-cooled cyclone separator used in the waste gas treatment process was over 1,300 degrees Celsius, which put a burden on cooling in the rapid cooling device in the next process. .
The present invention solves the above-mentioned problems, and further, a reaction treatment device for collecting dust, neutralizing, and catalyzing waste gas, and a treatment device before incineration of waste that has created a process for fertilizing zeolite after the catalyst. The present invention provides a plant for the use of waste heat after incineration, dust collection / neutralization / catalyst of waste gas, fertilizer using zeolite after the catalyst, and the structure thereof.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, the plant and apparatus of the present invention are configured as follows.
Referring to FIG. 1, as a pretreatment to be put into the direct-type melting furnace 3 for incineration and melting of garbage, the multistage blasting device 1 makes the dust minute and facilitates combustion. And in order to dehydrate the water | moisture content contained in refuse, wastes are processed with the water-containing separation conveyance apparatus 2. In addition, the waste gas discharged from the direct melting furnace 3 or the residue discharged from the other incinerator 22, the aluminum particles treated by the apparatus 23 for refining aluminum cans, and the water-cooled cyclone separator 7 are used for separation. A gasification melting furnace 4 is provided for melting the material to be melted in the melt storage tank 6 for storing the fly ash and the like in the recovered fly ash recovery tank 8. A waste gas pipeline 5 provided for treating the waste gas discharged from the gasification melting furnace 4 and a waste heat boiler 9 using waste gas heat emitted from the cyclone separator 7 are configured.
[0012]
Zeolite such as artificial zeolite produced with lime solution and coal ash to be refined with limestone, instead of the quick cooling device 10 for further reducing the temperature of the waste gas reduced in temperature by the waste heat boiler 9 and the conventionally used bag filter A waste gas dust collection / neutralization / catalytic reaction treatment device 11 composed of particles, a lime solution purification reaction tank 12 and a cleaning separation device 14 for purifying the solution in the tank are provided. Further, a separation device 15 for separating and recovering the spent gas in the dust collection / neutralization / catalytic reaction treatment device from the used solution into the zeolite, the lime solution and the drain after the catalyst, the solution recovery tank 12, and the drain recovery tank 13 and the zeolite recovery tank 16 are comprised.
[0013]
In order to produce various zeolite fertilizers by autoclaving the zeolite, an autoclave device 17 configured using steam generated from the waste heat boiler 9 and waste gas heat of the waste heat boiler 9, the waste heat boiler 9 It comprises the power generator 18 for generating electric power using the steam, the hot water tank 19 for recovering the hot water discharged from each plant and the steam drain, the cooling water tank 20, and the chiller device 21 for cooling the hot water.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
A preferred embodiment of the present invention will be described with reference to the drawings.
The processing apparatus before incineration of garbage according to the present invention was devised in order to facilitate combustion of garbage when it is attempted to incinerate and melt the direct connection type melting furnace 3 of FIG. There are many types of trash, for example, bulk trash is generally treated with a crusher, and not only hard trash but also soft ones are combusted at the same time. However, it is not uniform and a large difference occurs in the combustion state. Therefore, in order to miniaturize hard and soft garbage as uniformly as possible, the multistage demolition apparatus 1 shown in FIGS. 1 and 2 is configured.
[0015]
The multistage demolition apparatus 1 is a cylindrical body 25, and a rotation main shaft 27 is provided perpendicularly to the center of the cylindrical body 25. A pulley type rotation plate 28 shown in FIG. In the upper stage, the interval is wide, and as it goes to the lower stage, the interval is narrowed to form a plurality of stages. A cylindrical plate that supports the rotating cylinder 29 by attaching a light and hard metal plate such as a titanium steel plate to prevent dust from being caught between the outer cylindrical portion and the outer peripheral portion. An upper lid 31 is provided in which 36 is fixed to the inner upper portion. 2 is fixed to the bottom to support the main shaft shown in FIG. 2 (d) and to stabilize the outer cylinder, and the dust introduced from the inlet 26 shown in FIG. 2 (a) is installed at the top. The rotation main shaft 27 is rotated through the motor 32 and the pulley 33, and the gantry 34 provided at the lower portion and the cart 35 formed therebelow are collected.
[0016]
Among the above-mentioned miniaturized garbage, there are many garbages that are difficult to burn, such as raw garbage, and the water content separating and conveying device 2 that was created to reduce the water content ratio and reduce the specific gravity of the garbage is provided. This will be described with reference to FIGS.
In order to burn the garbage most efficiently in the direct connection type melting furnace 3, the pretreatment is to make the dust minute and to supply a small amount intermittently in a small amount with the moisture contained in the waste removed as much as possible. The direct connection type melting furnace 3 is provided with a small-scale intermittent charging device. Therefore, in order to drain liquid from the trash that has been miniaturized by the multistage blasting device 1, the water-containing separation / conveying device 2 for trash becomes an indispensable pretreatment device.
[0017]
3 (c) and (d), the waste that has been reduced in size by the multistage demolition device 1 is collected on the loading device 47 of the water-containing separation / conveying device 2 and dropped onto the conveyor screw 40. FIG. The conveyor-type screw 40 shown in FIG. 4 is rotated at a high speed, and drained from the hole of the drained perforated cylinder 41 installed outside thereof. The drained liquid is collected in the recovery dome for recovering the drained liquid in the perforated cylinder 41. The wastewater passes through the drainage device 42 at the lower part thereof, and is treated and drained at a wastewater treatment facility provided in the incineration plant. In this apparatus, bearing bearings 43 are provided at both ends of the gantry 48, and a plummer block 44 is provided between the rotation main shaft and the main body so that dust and drainage do not leak from the main body to the rotation main shaft side. The motor 46 and the pulley 45 constitute a drive device.
[0018]
the above Directly connected melting furnace 3 Incineration melting Is Waste gas And Fly ash from the fly ash collection tank 8 that collected the residue discharged from the existing incinerator 22 and the waste gas after incineration. as well as The aluminum powder collected by the waste aluminum can pulverizer 23 for pulverizing the aluminum can Collect the molten material in the storage tank 6 Gasification melting furnace 4 When melted by appear The waste gas is sent from the waste gas pipe 5 continuously formed in the melting furnaces 3 and 4 to the cyclone separator. The Regarding the water-cooled cyclone type separation device 7 configured for heat-resistant and corrosion-resistant configuration of the waste gas pipeline 5 and fly ash recovery, the present applicant has obtained a patent as Patent Registration No. 2997780, but the outline is as follows. As shown in FIG.
[0019]
Furnace 3, 4 The waste gas is fed into the water-cooled cyclone separator 7 through the waste gas line 5, but the waste gas flowing in the waste gas line 5 undergoes chemical changes when chlorinated organic compounds are burned. Contains harmful substances such as hydrochloric acid generated by Further, the temperature of the waste gas flowing through the waste gas pipeline 5 is very high (1300 ° C. or higher). Therefore, in order to prevent the waste gas pipeline 5 from being corroded by harmful substances such as hydrochloric acid, and at the same time to prevent the heat degradation of the waste gas pipeline 5, the waste gas pipeline 5 is constituted by a cooling water jacket 52. Since the inside of the cooling water jacket 52 is exposed to a high temperature waste gas and at the same time to a harmful substance such as hydrochloric acid, it is composed of a heat-resistant and corrosion-resistant metal plate. As the heat and corrosion resistant metal, nickel molybdenum metal, for example, Hastelloy (trade name) can be mentioned.
[0020]
Waste gas from the waste gas pipe line 5 is introduced into the water-cooled cyclone separator 7, and since the interior is exposed to a high temperature in the same manner as described above, the wall is covered with the cooling water jacket 53. The water is circulated through the cooling water jacket 53 for cooling. The waste gas inlet 54 is eccentrically attached to the cylindrical portion of the cooling water jacket 53, and a waste gas pipe 5 'is provided on the top surface of the central position of the water-cooled cyclone separator 7. . Further, a separated fly ash discharge port 55 is provided at a lower portion of the cooling water jacket 53.
[0021]
The waste gas introduced into the water-cooled cyclone separator 7 swirls in the internal space, and fly ash in the waste gas falls downward from the periphery and is discharged from the discharge port 55 through the valve 57. The waste gas from which fly ash and the like are removed is discharged from the central position to the waste gas pipeline 5 'and sent to the next step (FIG. 1). The waste gas pipe 5 'is also composed of a cooling water jacket 56, like the waste gas pipe 5. The inside of the cooling water jacket 56 is a heat-resistant and corrosion-resistant metal plate such as Hastelloy (trade name). It consists of the plate material. The fly ash or the like in the waste gas discharged from the discharge port 55 is collected in the fly ash collection tank 8 continuous to the discharge port 55.
[0022]
The waste gas temperature discharged from the direct-type melting furnace 3 and the gasification melting furnace 4 exceeds 1,300 degrees Celsius, and may be 1,500 degrees depending on the combustion products. And the waste gas temperature discharged | emitted from the cooling type cyclone type | mold separation apparatus 7 also maintains 1,300 degree | times. The waste heat boiler 9 is configured to effectively use the waste heat to reduce the waste heat temperature to 350 to 400 degrees Celsius.
[0023]
The features of the waste heat boiler 9 will be described with reference to FIG. A circular header pipe 63 is formed in the upper part and the lower part, and the inner water pipe 64 is connected to the header pipe 63 by the upper and lower central parts and the outer part of the header pipe 63, and between the inner water pipes 64 in the center part. A jammer plate 66 serving as a gas passage having a predetermined length is joined to the central portion between the inner water pipes 64 from the upper portion of the header pipe 63, and is provided as a waste heat supply plate for enhancing waste heat utilization. Waste gas enters from the waste gas supply port 61 in the upper part of the waste heat boiler 9, passes through the center of the header pipe 63, passes through the inner chamber formed by the cylindrical inner water pipe 64, and passes from the lower part of the jammer plate 66. The heat efficiency of the waste heat boiler 9 is enhanced by absorbing waste gas heat in an external chamber constituted by the outer water pipe 65 and sending it to the discharge port provided in the upper part.
[0024]
A castable 74 is driven into the bottom and upper header pipes 63 for better gas passage, and a dust collection chamber 73 is provided at the bottom of the cylinder. In order to connect the waste heat boiler 9 to the waste gas pipeline 5 'composed of NiMo plywood at the uppermost part of the main body of the waste heat boiler 9 in order to feed the high-temperature waste gas from the water-cooled cyclone separator 7 to the pipeline 5' A water-cooled jacketed air supply pipe 71 is provided. One of the steam discharge pipes 70 is a safety mounting valve, one is a pressure gauge mounting, and one is a main steam pipe. A water supply pipe 69, a drainage blow pipe 72, and a float switch 68 with a gauge are attached, and the entire cylindrical shape is constituted by a heat insulating material 75.
[0025]
The waste gas temperature discharged from the waste heat boiler 9 is reduced to about 350 to 400 degrees Celsius. Furthermore, the temperature of the waste gas can be reduced to about 50 to 80 degrees Celsius by the rapid cooling device 10. The features of the rapid cooling apparatus 10 will be described with reference to FIGS.
FIG. 7 shows a pool type cooling tower, and FIG. 8 shows a shower type cooling tower. The structures of the radiator panel 79 and the cooling tower body 76 in both towers are the same as those shown in FIGS. The waste gas sent from the waste gas discharge port 62 of the waste heat boiler 9 is inserted from the suction port 77, and is disposed between the radiator panel assembly chamber 78 provided in the upper portion and the radiator panel assembly chamber 78 provided in the lower portion. A radiator panel 79 is attached as shown in (b), and a waste gas vent 80 is formed in the lower radiator panel assembly chamber 78.
[0026]
The waste gas introduced from the suction port 77 of the pool type cooling tower is dispersed in the upper radiator panel 79, passes through the lower radiator panel assembly chamber 78, and is sent to the next cooling tower. In this case, the cooling tower main body 76 is characterized in that the cooling water is supplied from the water supply port 81 or the water supply port 82 from the lower part between the radiator panels 79 and is drained from the upper water discharge port 83.
[0027]
In the case of a shower-type cooling tower, waste gas vented from a waste gas vent 80 provided in the lower part passes through a radiator panel 79 provided in a radiator panel assembly chamber 78 provided in the lower part, and a radiator provided in the upper part. It passes through the panel collecting chamber 78 and is cooled and discharged from the waste gas discharge port 89. In this case, the cooling tower body 76 cools the radiator panel 79 by injecting cooling water from the pipe 86 with the injection nozzle by a pump 84 provided outside the main body between the radiator panels 79, and provided outside the main body. An air outlet 87 with an air outlet is provided at the lower part between the radiator panels 79 from the air fan 85, an air exhaust pipe 88 with draining mist and a fan is provided at the upper part of the main body, and a water outlet 83 at the lower part. It is characterized by providing.
[0028]
The rapid cooling device 10 is characterized by a combination of a pool type cooling tower and a shower type cooling tower, and is intended to increase the cooling effect and the steel material that can withstand corrosive acidic gas containing HCl. In the case of using a steel material having high thermal conductivity, the panel portion in contact with the waste gas is subjected to Teflon processing.
The waste gas discharged from the waste gas discharge port 89 of the rapid cooling device 10 after being reduced in temperature to about 50 to 80 degrees Celsius is sent to the next dust collection / neutralization / catalytic reaction processing device 11.
[0029]
The reaction processing apparatus 11 is demonstrated based on FIG. 9 (a), (b). Using artificial zeolite particles or synthetic zeolite particles produced from lime solution and coal ash purified by limestone, neutralize waste gas generated after incineration and melting of garbage, and through a catalytic reaction by adsorption and ionization, dust collection The reaction process is configured as a final process for completing the process. The waste gas discharged from the rapid cooling apparatus 10 is introduced into the pretreatment chamber 90 of the apparatus, neutralized by spraying the lime solution from the pipe 95 with a spray nozzle disposed on the upper lid of the chamber from the insertion port 91, and at the same time. A jet scrubber 99 is provided at the rear of the pretreatment chamber 90 so that the chamber has a negative static pressure.
[0030]
The waste gas that is cooled and sent in the radiator of the rapid cooling device 10 by the suction force of the jet scrubber 99 can be sucked well. Further, the jet scrubber 99 discharges an appropriate amount of zeolite stored in the zeolite tank 98 from the upper part of the blower pipe and blows it to the neutralization / catalyst reaction tower 92 when the blower fan 102 distributes air to the blower pipe. An annular pipe 96 for distributing the lime solution is provided on the inner and outer walls of the neutralization / catalyst reaction tower 92. The ring-shaped pipes 96 are arranged in multiple stages, and each pipe 96 has a large number of nozzles inclined at a predetermined angle with respect to the tower core, and the jet direction is inclined so that the zeolite particles and lime solution blown from the jet scrubber 99 are provided. And the waste gas can be satisfactorily neutralized and catalyzed.
[0031]
The lime solution sprayed in the reaction tower is recovered in the lower storage tank 94. A post-treatment chamber 93 is provided at the rear of the reaction tower 92. A plurality of filter plates 100 for collecting the dust adhering as water droplets are provided in the post-treatment chamber 93 at an inclination angle of about 60 degrees, and after a certain period of time, the filter plates 100 are sprayed with a plurality of dust particles. Cleaning and desorption are performed by spraying from a pipe 97 for distributing a lime solution provided with a nozzle. In addition, a draining mist 101 is provided in the upper part of the same room, and the exhaust fan 106 exhausts air to the atmosphere by a suction fan 103 provided in the rear part of the exhaust pipe 104 for discharging the cleaned waste gas. The post-processing chamber 93 is composed of a plurality of chambers, and the air volume of the suction fan 103 is calculated and set so that the pre-processing chamber 90 and the reaction tower can be operated satisfactorily in a negative static pressure state. The present invention provides a dust collection / neutralization / catalytic reaction treatment apparatus.
[0032]
The lime solution refinement | purification reaction processing apparatus 12 is demonstrated based on FIG. 10, FIG. The lime solution purification reaction treatment device 12 is positioned as part of the dust collection / neutralization / catalytic reaction treatment device 11 for waste gas, and the dust collection / neutralization / catalysis reaction treatment device 11 for waste gas is installed. It consists of four tanks as an underground tank 110 constructed with concrete on the side. From the reacted solution stored in the reaction solution storage tank 94 at the bottom of the reaction processing device 11, the separation device 15 separates and recovers the catalyst, the zeolite, the lime solution, and the drain, and the separation device 15 collects the lime solution. A first tank equipped with a water-absorbing device 118 with a ball trap for storage, a second tank composed of two tanks provided with a limestone charging box 111 having a partition structure made of stainless mesh steel, a third tank, and a plurality of stainless mesh steel It consists of a chamber having a magnetic layer forming a shelf 112 with a staged ferrite magnet and a fourth tank consisting of a tank 113 for storing a lime solution that passes through each tank, and at the bottom of each tank, The perforated panel plate 114 is laid, and the lime solution at the end is processed by the filter 115 and then sent to the reaction processing apparatus 11 by the water supply pump 116 for use.
[0033]
Further, the slurry generated from the limestone charging box 111 above the perforated panel plate 114 laid at the bottom of each tank is sent to the cleaning separation device 14 for lime solution purification by the pump 117 and processed to remove the slurry. Is returned to the first tank, and the separated slurry is collected in the drain recovery tank 13.
[0034]
Further, two separation devices 15 are provided, and when the zeolite after the catalyst captured by the separation device 15 is recovered, the separation function is stopped and the zeolite particles captured in the separation device 15 are installed at the bottom of the separation device. The material is recovered by a recovery cart and collected in the zeolite recovery tank 16. One of the separation devices 15 is always in operation, and the separated solution is collected by the lime solution purification reaction treatment device 12 and circulated and reused.
[0035]
Most of the reacted solution stored in the reaction solution storage tank 94 at the bottom of the waste gas dust collection / neutralization / catalyst reaction processing device 11 is neutral, but the alkalinity of the lime solution is passed through the limestone tank. Becomes pH 9 or higher, and even if the acid gas has an acidity of pH 3 or lower, the neutralized solution is neutralized by the alkalinization with zeolite.
[0036]
The heavy metal oxide gas contained in the waste gas and sent is also sucked and adsorbed on the zeolite by the high cation exchange capacity (CEC) of the zeolite and is subjected to a catalytic reaction treatment. In addition, Cl gas in the waste gas becomes HCl and reacts with the lime solution to react with calcium chloride (CaCl ₂ ) And is adsorbed by the zeolite to become a Ca-type zeolite by catalytic reaction.
[0037]
Ammonia gas in the waste gas generated when incinerating garbage etc. is adsorbed by zeolite and converted into nitrogen-type zeolite by catalytic reaction. ₂ It is also possible to make cheap urea by adsorbing methane, but in particular, Ca-type zeolite functions in various ways as a soil conditioner. For example, nutrient retention function, improvement of acidified soil, greening of desert, reduction of salt damage of reclaimed soil, stable culture medium for hydroponics, artificial soil culture medium for home gardening, water quality purification, sewage treatment, barn washing waste liquid And removal of ammonium ions, phosphorus, organic heavy metal ions, etc. in dam lakes, water treatment facilities or wastewater treatment.
[0038]
The configuration of the auto separator 120 as the separator 15 to be employed will be described in detail below based on FIG.
The mechanism is to automate the removal and discharge of fine particles. When a solution containing fine particles is forcibly supplied to the waste liquid inlet 124 by a pump, the liquid is blown up from the nozzle 125, and the dirty liquid is sent into the rotating body 121 of the centrifuge by the rotational force of the nozzle cover 126, forcing the fine particles. Precipitate on the inner wall of the rotating body 121. The cleaned liquid enters the outer case from the overflow hole 129 of the rotating body 121 and flows out from the cleaning liquid outlet 130. The fine particles settled on the side wall of the rotating body 121 become sludge and accumulate in the rotating body 121. In the figure, numeral 127 is a sludge discharge gear motor, and numeral 128 is a centrifuge motor.
[0039]
After a certain period of operation, the centrifuge and separator pump automatically stop and enter the sludge discharge process. When the centrifuge stops, the liquid remaining in the rotating body 121 falls into the lower case, becomes a drain, and flows out from the drain outlet 133. When the centrifuge stops, the slide plate 123 opens and the stopper shaft 132 is lowered to lock the rotating body 121. Further, the slide coupling 131 is fitted to the descending blade shaft while rotating, and the scraping blade 122 is rotated to scrape off the sludge accumulated in the rotating body 121. When the scraping is completed, the slide plate 123, the slide coupling 131, and the stopper shaft 132 are returned to their original positions, and the centrifuge automatically resumes rotation. The centrifuge cleaning stop time is about 6-7 minutes. When the lime solution after the catalyst in the storage tank 94 provided at the lower part of the reaction tower is separated and recovered into the zeolite and the solution by the separation device 15, basically two units are used together, and the lime solution purification reaction treatment device 12 In the case of the cleaning separation device 14 used for cleaning with a perforated panel provided at the bottom, it is characterized by being used as a single machine.
[0040]
The autoclave device 17 for fertilizing the zeolite after the catalyst recovered after the treatment by the separation device 15 will be described with reference to FIGS.
Zeolite that has undergone the adsorption catalytic reaction is put into the inlet 159 of the autoclave device 17 as a fertilizer raw material. The cylinder type opening / closing device 158 provided in the lower portion opens, and at the same time, the cylinder type opening / closing device 158 provided in the outlet 160 is also opened by the same operation. The rotating shaft 145 is formed of a pipe, has a plurality of steam discharge holes 147, and has a rotating cylinder for providing a screw conveyor 141 outside thereof. Similarly, the steam discharging hole 148 is provided, and the rotating shaft 145 and the screw conveyor are provided. The attached rotating cylinder is joined and integrated at both ends, and the space is used as a steam storage cylinder pipe 146.
[0041]
The outermost wall of the blades of the screw conveyor 141 has an outer wall for forming the gas heating chamber 150. The heating chamber 150 is formed of the waste gas integrally with the outer body 143, and is disposed at the lower end of the end. A gas supply pipe 149 is provided, a discharge pipe is provided at the upper part on the other end side, an exhaust fan 151 is attached, and air is sent to the waste gas line of the waste heat boiler 9. A bearing 156 is disposed on the frame 157 to support the rotating shaft 145 at both ends, and a motor 155 with a rotating pulley 154 is provided on one side, and a plummer block 153 is mounted on the other side. Integration with the steam supply pipe is planned, and a steam injection electromagnetic valve 144 is provided on the steam pipe to provide an automated apparatus.
[0042]
The portion of the screw conveyor 141 in contact with the outermost end of the blade is non-rotating, and is provided with a steam discharge port 152 used in the autoclave chamber 142 at the upper part of the zeolite outlet 160 fertilized at the exhaust gas outlet, The zeolite fertilized in the autoclave chamber 142 is recovered by a recovery carriage 161.
[0043]
When the zeolite after the catalyst is supplied from the inlet 159, the screw conveyor 141 also rotates simultaneously with the rotation of the rotating shaft 145 provided on the bearings 156 disposed at both ends. The inlet 159 is closed to prevent other zeolite from being supplied until the charged zeolite is delivered to the outlet 160. The outlet 160 is also closed at the same time. At the same time that the zeolite is delivered to the outlet 160, the outlet 160 opens. Steam is ejected from the inside in the autoclave chamber 142, and from the outer wall side, it is gradually discharged from the outlet 160 while being pressurized while being heated to 350 degrees Celsius to 400 degrees Celsius. Extrusion and pressurization are applied with the input port 159 kept open, so that a fixed amount of treatment is determined and operation is performed for a predetermined time, so that zeolite can be made into fertilizer.
[0044]
【The invention's effect】
According to the present invention described above, the following effects can be obtained.
The combustion state in the incineration melting furnace is improved by the pretreatment of incineration by the water-containing separation / conveying device that makes the dust finer by the multistage demolition device and dehydrates the moisture contained in the dust.
[0045]
In addition, as a waste gas treatment after incineration, by incorporating a waste heat boiler, the temperature of 1,300 degrees Celsius or more discharged from a water-cooled cyclone separator is reduced to an approximate value of 350 degrees Celsius to 400 degrees Celsius. In addition, the waste gas that has passed through the rapid cooling system using a combination of the pool method and the shower method has a rapid temperature drop to an approximate value of 50 degrees Celsius to 80 degrees Celsius, and the resynthesis of the dioxins is suppressed. It has become possible to lower the temperature to be reduced.
[0046]
In addition, the parts exposed to high-temperature acid gas are water-cooled and at the same time are made of corrosion-resistant metal, so there is no melting of components, no distortion, breakage or cracks, and durability is improved and long-term Therefore, it was possible to operate stably.
[0047]
As a waste gas treatment measure, there is no need to use lime powder or activated carbon powder, which are secondary pollutants found in dry gas treatment bug filters that have been popular until now, and therefore prevent their emission. It has become possible. By using lime solution and zeolite particles purified from limestone, neutralization of toxic substances in waste gas and catalyst are reacted at the same time, and toxic heavy metal ions and dust are collected. It became possible to process.
According to the present invention, the initial cost and running cost can be greatly reduced.
[0048]
Moreover, it became possible to fertilize the used zeolite as an effective soil conditioner by autoclaving.
[Brief description of the drawings]
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram of a processing apparatus before incineration of garbage incorporating each apparatus of the present invention, waste heat utilization after incineration, dust collection / neutralization / catalytic reaction apparatus for waste gas, and zeolite fertilizer conversion after catalyst. FIG.
FIG. 2A is a cross-sectional view of a multistage demolition device.
(B) is a plan view of the upper lid of the multistage breaking device.
(C) is a plan view of a pulley-type rotating plate of a multistage breaking device.
(D) is a top view of the bottom board part of a multistage breaking device.
FIG. 3A is a cross-sectional view of a water-containing separation and conveyance device.
(B) is a plan view of the water-containing separation transport device.
(C) is a projected side view of the input device portion of the water-containing separation and conveyance device.
(D) is sectional drawing of the injection | throwing-in apparatus part of a hydrous separation conveyance apparatus.
FIG. 4 is a cross-sectional view of a water-cooled cyclone separator.
FIG. 5A is a cross-sectional view of a waste heat boiler.
(B) is a projected plan view of a header pipe and a water pipe of a waste heat boiler.
(C) is a side view of the upper header pipe part of the waste heat boiler.
FIG. 6A is a projected plan view of a waste gas cooling apparatus.
(B) is a projected side view of the waste gas cooling device.
7A is a projected plan view of a pool type cooling device. FIG.
(B) is a projected side view of the pool type cooling device.
FIG. 8A is a projection plan view of a shower-type cooling device.
(B) is a projected side view of the shower type cooling device.
FIG. 9 (a) is a projected side view of a waste gas dust collection / neutralization / catalytic reaction treatment apparatus.
(B) is a side sectional view of the post-processing chamber.
FIG. 10A is a cross-sectional view of a lime solution purification reaction tank.
(B) is a plan view of a lime solution purification reaction tank.
FIG. 11 is a structural diagram of a separation device.
FIG. 12 (a) is a side sectional view of the autoclave device.
(B) is a projection plan view of the autoclave device.
FIG. 13 is a side cross-sectional view showing the relationship between a melting furnace, a water-cooled cyclone separator, and a waste gas pipe.
[Explanation of symbols]
1. Multistage demolition device
2 、 Hydrous separator
3. Directly connected melting furnace
4. Gasification melting furnace
5. Waste gas pipeline
6. Melt storage tank
7. Water-cooled cyclone separator
8. Fly ash collection tank
9. Waste heat boiler
10. Rapid cooling device
11. Dust collection / neutralization / catalytic reaction treatment equipment
12. Circulating lime solution purification reaction treatment equipment
13. Drain recovery tank
14. Cleaner and separation device for lime solution
15. Separation device for solution, zeolite and drain
16. Zeolite recovery tank
17. Autoclave device
18. Power generator
19, hot water tank
20, cooling water tank
21, Chiller device
22. Incinerator
23. Waste aluminum can powdering equipment
25, cylindrical body
26, inlet
27, rotating spindle
28. Pulley type rotating plate
29, rotating cylinder
30, perforated bottom plate
31, upper lid
32, motor
33, pulley
34, stand
35, cart
36, cylindrical plate
40, conveyor type screw
41, perforated cylinder
42, drainage device collection dome
43, bearings
44, plummer block
45, pulley
46, motor
47, input device
48, stand
49, cart
50 、 Water-cooled cyclone top cover
51, waste gas supply port
52, cooling water jacket
53, cooling water jacket
54, Waste gas inlet
55, outlet
56, cooling water jacket
57, valve
61, waste gas supply port
62, waste gas outlet
63, header pipe
64, inner water pipe
65, outer water pipe
66, Jama board
68, float switch with gauge
69, water supply pipe
70, steam discharge pipe
71, air pipe with water-cooled jacket
72, drainage blow pipe
73, dust collection chamber
74, Castable
75, insulation
76, cooling tower body
77, suction port
78, Radiator panel meeting room
79, Radiator panel
80, waste gas vent
81, water inlet
82, water inlet
83, drain
84, pump
85, blower fan
86, Pipe with injection nozzle
87, Blower with exhaust port
88, exhaust pipe
89, waste gas outlet
90, pretreatment chamber
91, insertion slot
92, Neutralization / catalytic reaction tower
93, aftertreatment chamber
94, storage tank
95, pipe with spray nozzle
96, ring-shaped pipe
97, Pipe for distributing lime solution
98, zeolite tank
99, jet scrubber
100, filter plate
101, draining mist
102, blower fan
103, suction fan
104, discharge pipeline
106, exhaust pipe
110, underground tank
111, limestone box
112, shelf with ferrite magnets
113, tank for storing lime solution
114, perforated panel board
115, filter
116, water supply pump
117, pump
118, water absorption device with ball trap
120, auto separator
121, rotating body
122, scraped feathers
123, slide plate
124, dirty liquid inlet
125, nozzle
126, nozzle cover
127, sludge discharge gear motor
128, centrifuge motor
129, overflow hole
130, cleaning liquid outlet
131, slide coupling
132, stopper shaft
133, drain outlet
141, screw conveyor
142, autoclave chamber
143, outer trunk
144, Steam injection solenoid valve
145, rotation axis
146, steam reservoir tube
147, steam exhaust hole
148, steam exhaust hole
149, supply pipe
150, heating chamber with waste gas
151, exhaust fan
152, steam outlet
153, plummer block
154, rotating pulley
155, motor
156, bearings
157, stand
158, cylinder type opening and closing device
159, slot
160, outlet
161, collection cart

Claims (8)

As a pre-treatment device that puts garbage into a direct melting furnace, a multi-stage blasting device for pulverizing and minimizing the trash, and easily dehydrating and burning moisture from the trash that has been miniaturized by the multi-stage blasting device Waste-water separating and conveying device for trash, direct-type melting furnace for incinerating trash , gasification- melting furnace for melting the melt from the direct-type melting furnace or other incinerators, discharged from the gasification-melting furnace A first waste gas passage through which the waste gas is circulated, a cyclone type separation device for introducing the waste gas in the first waste gas passage, a second waste gas passage through which the waste gas discharged from the cyclone separation device is circulated, the receiving waste gas having discharged heat from the second exhaust gas passage, a waste heat boiler Ru lowers the heat, pool type shower provided in order further to lower the exhaust gas heat from the waste heat boiler Rapid cooling combined with system Waste gas containing harmful substances such as hydrochloric acid gas, sulfurous acid gas, ammonia, nitrogen oxides, carbon monoxide, dioxins, gaseous heavy metal oxides discharged from the rapid cooling device is introduced from the insertion port. , A reaction treatment apparatus for neutralizing and catalyzing waste gas by causing dust particles to be collected and sent to the neutralization / catalytic reaction tower together with the zeolite particles discharged from the zeolite tank, and injecting a lime solution onto them at the location, Each tank for separating the lime solution after the reaction containing the zeolite particles into the zeolite particles after the catalyst, the lime solution after use and the drain waste liquid by a separation device, and treating the separated lime solution, the tank the first vessel, second and third tank, through the chamber and the respective tanks and the chamber having a magnetic field layer constituted by the ferrite magnet treated lime dissolved obtained by introducing limestone storing該石ash solution It constitutes a fourth tank to accumulate the said lime solution purification reaction device that makes it possible to circulate into the reaction device in order to reuse the lime solution of the fourth tank was recovered by the separation device A collection tank for collecting the zeolite particles after the catalyst, and a rotary autoclave device for making various types of zeolite fertilizers by heating and pressurizing the zeolite particles collected in the collection tank. Incineration, dust collection / neutralization / catalyst reaction treatment equipment for waste gas after incineration, and fertilizer plant after catalyst.   A multistage breaker is equipped with a rotating shaft inside a cylindrical body, and a plurality of circular rotating pulley-shaped wheels are provided on the rotating shaft, and pulverized while hard and soft debris is broken down from the upper stage to the lower stage. The waste incineration, dust collection / neutralization / catalyst reaction treatment apparatus for waste gas after incineration, and after the catalyst Fertilizer plant.   The waste water separating / conveying device is configured such that the outside of the screw conveyor provided on the horizontal main shaft is surrounded by a perforated cylindrical steel pipe, and the dust introduced from the cylindrical steel pipe entrance is drained toward the outlet by the screw conveyor while being discharged inside the cylindrical steel pipe. The waste incineration, dust collection / neutralization / catalyst reaction treatment apparatus for waste gas after incineration, and a fertilizer plant after the catalyst according to claim 1, wherein: The waste heat boiler generates steam using the high-temperature waste gas discharged from the cyclone separator, and lowers the waste gas temperature to about 350 to 400 degrees Celsius. 4. Incineration of garbage according to any one of items 1 to 3, dust collection / neutralization / catalyst reaction treatment apparatus for waste gas after incineration, and fertilizer plant after the catalyst.   The rapid cooling system is a pool system that increases the cooling effect by supplying cooling water from the lower part of the cooling tower and the gap between the radiator panels. A combination of two cooling means of a shower system in which outside air is blown downward from a fan and a draining mist and an exhaust fan are provided in the upper portion of the cooling tower to enhance the cooling effect. 4. Incineration of garbage according to any one of 4 above, dust collection / neutralization / catalyst reaction treatment device for waste gas after incineration, and fertilizer plant after catalyst. The dust collection / neutralization / catalytic reaction treatment apparatus is a pretreatment chamber in which a lime solution is sprayed from a nozzle provided at the upper part forming a negative static pressure region to neutralize acid gas, and the pretreatment chamber is negatively pressurized. A jet scrubber provided at the rear of the pretreatment chamber to make the region, a zeolite tank for inserting zeolite particles into the air supply pipe of the jet scrubber, and the reaction tower main body so that the reaction gas is passed through the waste gas. By maintaining a static pressure region and tilting a predetermined angle with respect to the tower core provided in multiple stages on the inner wall of the reaction tower main body, a large number of nozzles serving as means for supplying the lime solution, by neutralization of waste gas, adsorption by zeolite and ionization A lower storage tank that collects the lime solution that promotes the catalytic action, a filter plate that adsorbs purified waste gas with water and collects dust, a drain mist provided on the upper part, and a pipe that discharges the waste gas Suction fan provided at the rear And a post-treatment chamber at the rear part of the reaction tower main body equipped with a catalyst for incineration of waste, dust collection / neutralization / catalyst of waste gas after incineration, Reactor and fertilizer plant after catalyst. Separation device Otosepare centrifugation type - provided with a motor, said Otosepare - claims 1, characterized by comprising roughly an object to the zeolite particles and the drain waste lime solution and spent catalyst reaction be recovered by data 6. Incineration of garbage according to any one of claims 6, dust collection / neutralization / catalyst reaction treatment equipment of waste gas after incineration, and fertilizer plant after catalyst.   The autoclave device has an inlet for inserting the zeolite particles after the catalyst, a steam outlet for sending steam into the rotating shaft and ejecting the steam from the part supporting the screw blades, and exhausting from the waste heat boiler formed outside the rotating cylinder of the screw conveyor A waste heat incinerator, a waste gas dust collection / neutralization / catalyst reaction treatment apparatus according to claim 1, Fertilizer plant after catalyst.

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