CN111536520A - Treatment system for carrying out harmless treatment and reduction on solid waste and solid waste treatment method - Google Patents
Treatment system for carrying out harmless treatment and reduction on solid waste and solid waste treatment method Download PDFInfo
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/033—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment comminuting or crushing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/14—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
- F23G5/16—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion in a separate combustion chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/50—Control or safety arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention belongs to the technical field of solid waste treatment, and relates to harmless and quantitative reduction equipment and a method, in particular to a treatment system and a solid waste treatment method for performing harmless and quantitative reduction on solid waste.
Description
Technical Field
The invention belongs to the technical field of solid waste treatment, relates to equipment and a method for harmlessness and reduction, and particularly relates to a treatment system and a treatment method for harmlessness and reduction of solid waste.
Background
With the development of technology, various manufacturing industries mature the technology, resulting in the generation of a large amount of solid waste. Therefore, the harmlessness, reduction and recycling of the solid waste are one of the important contents related to the protection and improvement of living and ecological environments, the prevention and control of pollution, the change of the traditional development mode and the coordination of economic development and environmental protection.
In many manufacturing industries such as the automobile industry and the printing industry, solid wastes such as waste paint residues, waste paint buckets and expired waste paint are generated in the industrial production process, and meanwhile, in the automobile coating production line, waste water and sludge mixed with various substances such as acid, alkali, solvent, grease, precipitated mud, phosphate film, surface treating agent powder, electroplating waste water and the like are generated. Sludge formed by a plurality of chemical substances and harmful substances can cause the environment to be badly influenced by wear-out regardless of discharge or accumulation treatment. The two substances are listed as hazardous wastes, and are difficult to treat industrial hazardous wastes due to the fact that the substances contain a large amount of organic matters, are complex in components, high in toxic and harmful effects and high in treatment cost.
At present, the treatment mode of the waste paint slag generated in the coating process is mainly incineration, and the treatment mode of the waste water sludge generated in the metal surface treatment process is mainly landfill. Although the waste is reduced in a waste paint slag disposal mode, secondary pollution is easily caused in the incineration process, the heat energy consumption is high, the smoke gas amount is large, and the unit treatment cost is high; and the sludge disposal mode is not effectively reduced, a large amount of landfill volume is needed, and the method is obviously untimely under the current environment of shortage of large-city land.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a treatment system for performing harmless and quantitative reduction on solid waste, which is used for drying at the early stage, reducing the waste for multiple times, classifying and treating the waste and waste gas and effectively avoiding secondary pollution, and forms a new solid waste treatment method based on the system.
The technical scheme adopted by the invention is as follows:
the utility model provides a processing system for being directed at solid waste carries out innoxious and minimizing, includes solid useless storage silo and desiccator, its characterized in that: the solid waste discharge bin is internally provided with a plurality of storage cavities, each storage cavity is used for containing solid waste and sludge, the discharge ends of the storage cavities are communicated with the feed end of the dryer, the solid waste and the sludge are mixed in the dryer in proportion, the discharge end of the dryer is respectively provided with a tail gas treatment device, a multi-hearth furnace device and a quenching tank, flue gas generated by the dryer is communicated with the tail gas treatment device, generated waste residues are communicated with the multi-hearth furnace device, and generated fly ash is communicated with the quenching tank.
Further, the dryer adopts a heat pump dryer, the heat pump dryer utilizes the reverse Carnot principle, and a compressor, a heat exchanger, a restrictor, a heat absorber and a compressor are sequentially installed in the heat pump dryer.
Further, many thorax stove device includes the pyrolysis unit and burns the unit, wherein burns the unit and install the next level at the pyrolysis unit, burn the unit and include a combustion chamber and the second combustion chamber of installing in order, a combustion chamber is used for burning solid mixture, and the tail gas of this combustion chamber is leading-in the second combustion chamber, second combustion chamber and outside air and combustion improver switch on and are used for combustion gas, and the exhaust end of this second combustion chamber is installed tail gas processing apparatus.
Furthermore, the tail gas treatment device comprises a quench tower, a bag-type dust remover, an SCR reactor, a washing tower and an outer discharge chimney which are sequentially installed, and the quench tank is installed at a waste material outlet of the bag-type dust remover.
Furthermore, a waste heat boiler is arranged between the exhaust end of the secondary combustion chamber and the quench tower, a water tank is arranged at the water inlet end of the waste heat boiler, and a branch cylinder is arranged at the exhaust end of the waste heat boiler.
Furthermore, a micro powder injection device is installed in a flue gas pipeline between the quenching tower and the bag-type dust remover, and the micro powder injection device is used for injecting alkaline dust and adsorption particles into the flue gas pipeline.
A solid waste treatment method using a treatment system for making harmless and reducing the amount of solid waste, comprising the steps of:
step 1: respectively guiding the waste residues and the sludge of the solid wastes into different storage cavities in a waste storage bin;
step 2: conveying the waste residues and the sludge stored in the storage cavity to a dryer in proportion for mixing and shaping to form a mixture;
and step 3: raising the pressure and raising the temperature to 90-100 ℃ in a dryer, and drying;
and 4, step 4: after the mixture is dried until the water content is reduced to 20%, introducing the mixture into a multi-hearth furnace device;
and 5: standing in a multi-hearth furnace device for secondary drying, and collecting the generated water vapor by a tail gas treatment device;
step 6: pyrolyzing and incinerating in a multi-hearth furnace device, sucking and conveying the generated flue gas to a secondary combustion chamber, heating to over 1100 ℃, and then introducing the generated secondary flue gas into a tail gas treatment device; the incineration product enters a quenching tank for cooling;
and 7: and packaging and transporting the cooled incineration product after water removal treatment.
Further, in the step 6, the generated flue gas is mixed with external air and combustion improver in a secondary combustion chamber for combustion, and is allowed to stay for more than 2 seconds.
Further, in the step 6, the secondary flue gas is used as a heating medium to exchange heat with a waste heat boiler and is reduced to 550 ℃ at 450-; the low-temperature tail gas is cooled to below 200 ℃ by a quenching tower and then enters a bag-type dust collector; then, sequentially carrying out denitration through an SCR reactor and wet deacidification through a water washing tower; and finally realizing the outward discharge.
Furthermore, the low-temperature tail gas between the quenching tower and the bag-type dust remover is sprayed with lime powder and activated carbon powder by a micro powder spraying device.
The invention has the advantages and positive effects that:
1. in the invention, because the heat values of different solid wastes are different, the solid wastes of the solid wastes and the sludge with high water content are classified and stored in the corresponding storage cavities at the front end of the treatment and are mixed in proportion at the front end of the treatment, so that the components of the pyrolysis and incineration processes in the subsequent process are ensured to be stable, and the treatment effect is better. After mixing, a dryer is adopted to dry and remove water from the mixture, so that most of water can be removed, and energy consumption required by the subsequent incineration procedure can be effectively reduced. And then, secondary drying, pyrolysis and incineration are sequentially carried out in the multi-hearth furnace device, and the incineration products, tail gas and light fly ash are respectively treated, so that the harmless degree is high, and secondary pollution is effectively avoided.
2. In the invention, the drier preferably adopts a heat pump drier, although the drying efficiency is lower than that of an electric heating drier and a fossil fuel drier, the running cost is far lower than that of the drying equipment, the cost performance is high, and the heat pump drier is suitable for treating a large amount of solid waste.
3. In the invention, the pyrolysis unit and the incineration unit are arranged in the multi-hearth furnace device, so that pyrolysis and incineration can be respectively carried out, the smoke generated in the pyrolysis process is small, substances such as dioxin and the like are hardly generated, meanwhile, combustible gas can be generated, a large amount of heat energy can be recovered by incinerating the combustible gas, the incineration process is cleaner, and secondary pollution can be effectively avoided;
4. in the invention, the tail gas treatment device is sequentially provided with the waste heat boiler, the quench tower, the bag-type dust collector, the SCR reactor, the water washing tower and the exhaust chimney, so that waste heat recovery, cooling, fly ash sedimentation, denitration and deacidification can be respectively realized, and the final harmless exhaust requirement is met.
5. In the invention, the sprayed alkaline dust and the adsorption particles can remove partial acid gas, heavy metal dust and precursor of dioxin, and effectively inhibit the generation of substances such as dioxin and the like.
6. The solid waste treatment method using the treatment system for carrying out the harmlessness and the reduction on the solid waste comprises 7 steps of storing, mixing, drying, pyrolyzing, incinerating, cooling and packaging to form a set of complete solid waste treatment process. In the implementation process, different solid wastes are mixed according to corresponding proportion, so that the stability of the pyrolysis and incineration procedures is ensured. Drying is used as primary decrement, so that the water in the mixture is effectively removed, and the energy consumption in the subsequent treatment process is reduced. Secondary drying, pyrolysis and incineration in the multi-hearth furnace device, wherein the secondary drying can realize further reduction; the amount of flue gas generated by pyrolysis is low, substances such as dioxin and the like are hardly generated, the process is cleaner, small-molecule combustible gas can be generated in the pyrolysis process, the combustible gas can be further burnt, a large amount of heat energy can be recovered, the burning process is cleaner, and secondary pollution is effectively avoided; in the burning process, the air introduced into the secondary chamber is matched with the combustion improver, the heating time and the heating temperature are controlled, and most of organic matters can be converted into harmless CO2And H2And O. In the tail gas treatment process, a waste heat boiler, a quench tower, dry desulfurization, cloth bag dust removal, SCR denitration and wet desulfurization are combined to realize complete tail gas purification treatment, and the tail gas reaches the discharge standard of hazardous waste incineration pollution control standard GB 18484-2001.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic flow and structure diagram of the present invention;
FIG. 3 is a schematic view of a flow and structure of a portion of the tail gas treatment apparatus.
Detailed Description
The present invention is further illustrated by the following examples, which are intended to be illustrative, not limiting and are not intended to limit the scope of the invention.
The invention discloses a treatment system for carrying out harmless treatment and reduction on solid waste, which comprises a solid waste storage bin 1 and a dryer 3, and is characterized in that a plurality of storage cavities 2 are arranged in the solid waste discharge bin, each storage cavity is used for containing the solid waste and sludge, the discharge ends of the storage cavities are communicated with the feed end of the dryer, the solid waste and the sludge are mixed in the dryer in proportion, the discharge end of the dryer is respectively provided with a tail gas treatment device, a multi-hearth furnace device and a quenching tank, smoke generated by the dryer is communicated with the tail gas treatment device, generated waste residues are communicated with the multi-hearth furnace device 13, and generated fly ash is communicated with the quenching tank.
In this embodiment, the desiccator adopts the heat pump desiccator, and this heat pump desiccator utilizes contrary carnot principle, and its inside is installed compressor, heat exchanger, flow controller, heat absorber and compressor in order.
In this embodiment, many thorax stove device includes pyrolysis unit and burns the unit, wherein burns the unit and install in the lower of pyrolysis unit, burn the unit and include a combustion chamber and second combustion chamber 11 of installing in order, a combustion chamber is used for burning solid mixture, and the tail gas of this combustion chamber is leading-in the second combustion chamber, second combustion chamber and outside air and combustion improver switch on and are used for combustion gas, and the exhaust end of this second combustion chamber is installed tail gas processing apparatus.
In this embodiment, the tail gas treatment device includes quench tower 10, sack cleaner 8, SCR reactor 6, scrubbing tower 7 and the outer chimney that discharges of installing in order, installs at the waste outlet of sack cleaner quench the groove.
In this embodiment, a waste heat boiler 9 is installed between the exhaust end of the second combustion chamber and the quench tower, a water tank 12 is installed at the water inlet end of the waste heat boiler, and a branch cylinder is installed at the exhaust end of the waste heat boiler.
In this embodiment, a flue gas pipeline between the quench tower and the bag-type dust collector is provided with a micro powder injection device 4, and the micro powder injection device is used for injecting alkaline dust and adsorption particles into the flue gas pipeline.
A solid waste treatment method using a treatment system for making the solid waste harmless and reducible, characterized in that: the method comprises the following steps:
step 1: respectively guiding the waste residues and the sludge of the solid wastes into different storage cavities in a waste storage bin;
step 2: conveying the waste residues and the sludge stored in the storage cavity to a dryer in proportion for mixing and shaping to form a mixture;
and step 3: raising the pressure and raising the temperature to 90-100 ℃ in a dryer, and drying;
and 4, step 4: after the mixture is dried until the water content is reduced to 20%, introducing the mixture into a multi-hearth furnace device;
and 5: standing in a multi-hearth furnace device for secondary drying, and collecting the generated water vapor by a tail gas treatment device;
step 6: pyrolyzing and incinerating in a multi-hearth furnace device, sucking and conveying the generated flue gas to a secondary combustion chamber, heating to over 1100 ℃, and then introducing the generated secondary flue gas into a tail gas treatment device; the incineration product enters a quenching tank for cooling;
and 7: and packaging and transporting the cooled incineration product after water removal treatment.
In this embodiment, in the step 6, the generated flue gas is mixed with the external air and the combustion improver in the second combustion chamber for combustion, and is allowed to stay for more than 2 seconds.
In this embodiment, in the step 6, the secondary flue gas is used as a heating medium to exchange heat with the waste heat boiler and is reduced to 550 ℃ at 450-; the low-temperature tail gas is cooled to below 200 ℃ by a quenching tower and then enters a bag-type dust collector; then, sequentially carrying out denitration through an SCR reactor and wet deacidification through a water washing tower; and finally realizing the outward discharge.
In this embodiment, the low-temperature tail gas between the quenching tower and the bag-type dust collector is sprayed with lime powder and activated carbon powder by a micro-powder spraying device.
In this example 1, the solid waste treatment of Tianjin Yiyufeng corporation is taken as an example.
The existing solid wastes of Tianjin Yiyufeng automobile company, including paint waste generated in the coating process and wastewater treatment sludge generated in the metal surface treatment process, are all dangerous wastes. The waste paint slag and the sludge are stored in the storage bin, and the organic component proportion in the solid component of the waste paint slag is up to more than 90 percent, so the heat value is very high, while the inorganic component proportion in the solid component of the sludge is about 50 percent, and the heat value is lower.
Step 1: respectively guiding the waste residues and the sludge of the solid wastes into different storage cavities in a waste storage bin;
step 2: conveying the daily treatment capacity of the waste residues and the sludge stored in the storage cavity to a dryer according to the ratio of 10:7 for mixing and shaping to form a mixture; in order to facilitate the subsequent drying process, a primary forming machine is prepared at the front feeding stage (namely step 2) of the heat pump dryer, waste residues and sludge are pressed into strips, and meanwhile, the two types of solid wastes are uniformly mixed;
and step 3: boosting the pressure and raising the temperature to 100 ℃ in a dryer, and drying;
and 4, step 4: after being dried, the water content of the mixed material is reduced from 80 percent to 20 percent, and then the mixed material is guided into an incineration feeding groove of a multi-hearth furnace device through a screw conveyer;
and 5: standing in an incineration feeding groove of a multi-hearth furnace device for secondary drying, and collecting generated steam through a tail gas treatment device;
step 6: the pyrolysis and incineration are carried out in a multi-hearth furnace device, solid organic components in the materials are gasified into combustible gas in the pyrolysis stage, the rest parts are converted into coke, and the combustible gas is sent into the furnace through a circulating pipeline, so that the combustible gas can be recycled, and the consumption of natural gas is saved; the generated flue gas is sucked and sent to a secondary combustion chamber and heated to more than 1100 ℃, then the generated secondary flue gas enters a tail gas treatment device, and after the step is finished, the material reduction reaches more than 95%; fly ash generated in the incineration product enters a quenching tank for cooling;
and 7: and packaging and transporting the cooled incineration product after water removal treatment.
In the embodiment, the flue gas generated in the incineration process is pumped and sent to a second combustion chamber by a draught fan 5 under negative pressure and heated to over 1100 ℃, so that combustible gas, harmful gas and the like in the flue gas are completely oxidized into CO2And H2And O. Sufficient air and auxiliary fuel are introduced into the second combustion chamber to heat the flue gas to 1100 ℃ so that the synthetic gas is mixed and combusted in the second combustion chamber and stays for more than 2 seconds, and the organic matters are completely converted into harmless CO2And H2O。
In this embodiment, the high-temperature flue gas at the outlet of the secondary combustion chamber has a heat recovery value, a waste heat boiler is usually adopted to recover the waste heat of the flue gas, and the waste heat in the flue gas is utilized to generate steam, which can be sold outside.
In the embodiment, after heat is recovered by the waste heat boiler, the temperature of the flue gas is suddenly reduced from 500 ℃ to about 200 ℃ by the quenching tower and then enters the bag-type dust remover, the temperature of the flue gas entering the bag-type dust remover is 200 ℃, so that the dewing phenomenon of the bag-type dust remover can be avoided, and lime hydrate powder and activated carbon are sprayed into a flue gas pipeline to remove part of pollutants such as acid gas, heavy metal dust, dioxin precursor and the like before the flue gas enters the bag-type dust remover. The dedusted flue gas enters a wet deacidification system from a draught fan, and SO in the flue gas2Further neutralization with NaOH solution was removed.
Claims (10)
1. The utility model provides a processing system for being directed at solid waste carries out innoxious and minimizing, includes solid useless storage silo and desiccator, its characterized in that: the solid waste discharge bin is internally provided with a plurality of storage cavities, each storage cavity is used for containing solid waste and sludge, the discharge ends of the storage cavities are communicated with the feed end of the dryer, the solid waste and the sludge are mixed in the dryer in proportion, the discharge end of the dryer is respectively provided with a tail gas treatment device, a multi-hearth furnace device and a quenching tank, flue gas generated by the dryer is communicated with the tail gas treatment device, generated waste residues are communicated with the multi-hearth furnace device, and generated fly ash is communicated with the quenching tank.
2. A treatment system for the innoxious and quantitative reduction of solid waste as claimed in claim 1 wherein: the dryer adopts a heat pump dryer, the heat pump dryer utilizes the inverse Carnot principle, and a compressor, a heat exchanger, a restrictor, a heat absorber and a compressor are sequentially installed in the heat pump dryer.
3. A treatment system for the innoxious and quantitative reduction of solid waste as claimed in claim 1 wherein: the multi-hearth furnace device comprises a pyrolysis unit and an incineration unit, wherein the incineration unit is installed at the lower position of the pyrolysis unit, the incineration unit comprises a combustion chamber and a secondary combustion chamber which are sequentially installed, the combustion chamber is used for combusting a solid mixture, tail gas of the combustion chamber is introduced into the secondary combustion chamber, external air and a combustion improver are conducted to be used for combusting gas, and the tail gas treatment device is installed at the exhaust end of the secondary combustion chamber.
4. A treatment system for the innocent and minimization of solid waste as claimed in claim 1 or 3 wherein: the tail gas treatment device comprises a quench tower, a bag-type dust remover, an SCR reactor, a water washing tower and an outer discharge chimney which are sequentially installed, and the quench tank is installed at a waste material outlet of the bag-type dust remover.
5. A treatment system for the innoxious and quantitative reduction of solid waste according to claim 4, characterized in that: and a waste heat boiler is arranged between the exhaust end of the secondary combustion chamber and the quench tower, a water tank is arranged at the water inlet end of the waste heat boiler, and a branch cylinder is arranged at the exhaust end of the waste heat boiler.
6. A treatment system for the innoxious and quantitative reduction of solid waste according to claim 4, characterized in that: and a micro powder injection device is arranged in a flue gas pipeline between the quenching tower and the bag-type dust remover and is used for injecting alkaline dust and adsorption particles into the flue gas pipeline.
7. A solid waste treatment method using a treatment system for making harmless and reducing quantity of solid waste as set forth in any one of claims 1 to 6, characterized in that: the method comprises the following steps:
step 1: respectively guiding the waste residues and the sludge of the solid wastes into different storage cavities in a waste storage bin;
step 2: conveying the waste residues and the sludge stored in the storage cavity to a dryer in proportion for mixing and shaping to form a mixture;
and step 3: raising the pressure and raising the temperature to 90-100 ℃ in a dryer, and drying;
and 4, step 4: after the mixture is dried until the water content is reduced to 20%, introducing the mixture into a multi-hearth furnace device;
and 5: standing in a multi-hearth furnace device for secondary drying, and collecting the generated water vapor by a tail gas treatment device;
step 6: pyrolyzing and incinerating in a multi-hearth furnace device, sucking and conveying the generated flue gas to a secondary combustion chamber, heating to over 1100 ℃, and then introducing the generated secondary flue gas into a tail gas treatment device; the incineration product enters a quenching tank for cooling;
and 7: and packaging and transporting the cooled incineration product after water removal treatment.
8. A solid waste treatment method for a treatment system for making harmless and reducing quantity of solid waste according to claim 7, characterized in that: in the step 6, the generated flue gas is mixed with external air and combustion improver in a second combustion chamber for combustion, and stays for more than 2 seconds.
9. A solid waste treatment method for a treatment system for making harmless and reducing quantity of solid waste according to claim 7, characterized in that: in the step 6, the secondary flue gas is used as a heating medium to exchange heat with a waste heat boiler and is reduced to 550 ℃ to form low-temperature tail gas; the low-temperature tail gas is cooled to below 200 ℃ by a quenching tower and then enters a bag-type dust collector; then, sequentially carrying out denitration through an SCR reactor and wet deacidification through a water washing tower; and finally realizing the outward discharge.
10. A solid waste treatment method for a treatment system for making harmless and reducing quantity of solid waste according to claim 9, characterized in that: and spraying lime powder and activated carbon powder on the low-temperature tail gas between the quenching tower and the bag-type dust remover by using a micro-powder spraying device.
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| CN113028426A (en) * | 2021-02-22 | 2021-06-25 | 中国汽车工业工程有限公司 | Harmless decrement process and heat energy recycling method of paint waste residues |
| CN117053566A (en) * | 2023-10-10 | 2023-11-14 | 北京琪玥环保科技股份有限公司 | Treatment system and treatment method for residual oil hydrogen production filter cake |
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