CN112797415A - Method and system for waste incineration treatment - Google Patents

Method and system for waste incineration treatment Download PDF

Info

Publication number
CN112797415A
CN112797415A CN202110157515.2A CN202110157515A CN112797415A CN 112797415 A CN112797415 A CN 112797415A CN 202110157515 A CN202110157515 A CN 202110157515A CN 112797415 A CN112797415 A CN 112797415A
Authority
CN
China
Prior art keywords
flue gas
waste
temperature
deacidification
garbage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110157515.2A
Other languages
Chinese (zh)
Inventor
吴光明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Pinde Environmental Science And Technology Co ltd
Original Assignee
Jiangsu Pinde Environmental Science And Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Pinde Environmental Science And Technology Co ltd filed Critical Jiangsu Pinde Environmental Science And Technology Co ltd
Priority to CN202110157515.2A priority Critical patent/CN112797415A/en
Publication of CN112797415A publication Critical patent/CN112797415A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/08Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
    • F23G5/14Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
    • F23G5/16Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion in a separate combustion chamber
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44Details; Accessories
    • F23G5/442Waste feed arrangements
    • F23G5/444Waste feed arrangements for solid waste
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00Arrangements of devices for treating smoke or fumes
    • F23J15/02Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/025Arrangements 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00Arrangements of devices for treating smoke or fumes
    • F23J15/02Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/027Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using cyclone separators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00Arrangements of devices for treating smoke or fumes
    • F23J15/02Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/04Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00Arrangements of devices for treating smoke or fumes
    • F23J15/06Arrangements of devices for treating smoke or fumes of coolers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2217/00Intercepting solids
    • F23J2217/10Intercepting solids by filters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2217/00Intercepting solids
    • F23J2217/40Intercepting solids by cyclones
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2217/00Intercepting solids
    • F23J2217/50Intercepting solids by cleaning fluids (washers or scrubbers)
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/30Technologies for a more efficient combustion or heat usage

Abstract

The invention discloses a method and a system for waste incineration treatment, which comprise a waste feeding system, an incinerator and secondary combustion chamber system, a waste boiler and SNCR denitration system, a quench tower system, a reaction tower system, a dust remover system, a deacidification system and the like. The garbage feeding system receives garbage and then spirally feeds the garbage into the incinerator, the flue gas after incineration and further treatment in the secondary combustion chamber is fed into a waste boiler and an SNCR denitration system to recover flue gas waste heat and denitrate, the flue gas is fed into a quenching tower system to be rapidly cooled, then is fed into a reaction tower system to react, is fed into a deduster system to be dedusted, and is finally fed into a deacidification system to be deacidified and then is discharged after reaching the standard. The method and the system for waste incineration treatment have the advantages of good energy-saving and environment-friendly properties, raw material applicability, high denitration and deacidification efficiency, effective inhibition of dioxin re-synthesis, obvious dust removal and heavy metal removal effects and the like. The novel method and the system for the waste incineration treatment have the advantages of energy conservation, consumption reduction, simple operation, good operation economic benefit, direct emission of flue gas and no pollution to the environment.

Description

Method and system for waste incineration treatment
Technical Field
The invention belongs to the technical field of waste incineration, and particularly relates to a method and a system for waste incineration treatment.
Background
With the acceleration of the urbanization process, the problem of waste accumulation of municipal solid waste is becoming more serious, and the methods for treating municipal solid waste at home and abroad at present generally comprise: sanitary landfill, direct burning, plasma gasification, etc.
The sanitary landfill not only occupies a large amount of land, but also contains a large amount of heavy metals and bacteria, and can generate stink to cause serious pollution to water, soil and atmosphere. With the increasing annual production of wastes such as garbage, the embarrassment situation that the wastes such as garbage can be buried and piled up has occurred in many places, and the environmental and ecological safety problems caused by the pollution of garbage landfill are very serious.
The direct incineration of wastes such as garbage and the like can realize biomass reduction, reduce the occupied area and generate electricity at the same time, thereby creating certain economic benefit. However, the currently published incineration methods also bring about a series of problems: firstly, carcinogenic substances such as dioxin, furan and the like are easily generated due to low incineration temperature; secondly, the fly ash and the residue generated by incineration are rich in toxic and harmful heavy metal substances, which easily causes pollution to underground water sources; and thirdly, a large amount of smoke is generated by incineration, and the carbon emission is large.
The principle of plasma gasification technology is that by utilizing the physical characteristics of plasma, the high-temperature plasma has high energy density, the neutral particle temperature is close to the electron temperature, and the reactivity of various particles is high, the central temperature of a plasma torch for treating garbage generally can reach 30000 ℃ at most, the edge temperature can also reach about 3000 ℃, when the high-temperature plasma impacts a treated object, the treated object is quickly gasified and decomposed, new substances are generated by recombination, and therefore the treated harmful substances are changed into harmless substances. However, the method has high energy consumption, short plasma moment service life, frequent equipment replacement and high treatment cost.
Therefore, the search and research for developing a new green and environment-friendly method for treating wastes such as garbage and the like to reduce and eliminate the problem of environmental pollution caused in the process of treating municipal domestic garbage as much as possible have become a new subject in the field of waste treatment such as garbage and the like at present. Particularly, with the rapid development of economy and the increasing shortage of energy resources in recent years, the harmlessness, reduction and recycling of waste treatment such as garbage and the like become a new development direction of the industry at present.
Disclosure of Invention
The invention aims to provide a method and a system for waste incineration treatment, aiming at the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a method and a system for waste incineration treatment are characterized by comprising the following steps:
step 1: the garbage is spirally fed into an incinerator through a feeding system;
step 2: flue gas generated after the garbage is incinerated and further treated in a secondary combustion chamber is sent to a waste boiler and an SNCR (selective non-catalytic reduction) denitration system to recover the waste heat of the flue gas and carry out denitration;
and step 3: the flue gas after flue gas waste heat recovery and denitration is sent to a quenching tower system for rapid cooling, and then is sent to a reaction tower system for reaction, and heavy metal and dioxin in the flue gas are adsorbed in the reaction tower;
and 4, step 4: the smoke after absorbing heavy metal and dioxin is sent to a cyclone dust collector and a bag-type dust collector for dust collection.
And 5: after dust removal by a bag-type dust remover, the flue gas enters a primary washing tower and a secondary washing tower for deacidification.
A method and a system for waste incineration treatment, comprising: garbage feeding system, burn burning furnace and second combustion chamber system, pot and SNCR deNOx systems, quench tower system, reaction tower system, dust remover system and deacidification system.
Wherein the garbage feeding system is used for feeding garbage into the incinerator.
The incinerator and the secondary combustion chamber system are used for carrying out high-temperature incineration treatment on the garbage.
The waste boiler and the SNCR denitration system are used for recycling and denitration the waste heat of the flue gas generated by burning the flue gas.
The quenching tower system is used for rapidly cooling the flue gas.
The reaction tower system is used for adsorbing heavy metals and dioxin in the flue gas.
The dust remover system is used for carrying out cyclone dust removal and cloth bag dust removal on the flue gas.
The deacidification system is used for carrying out primary washing and secondary washing deacidification on the flue gas.
Further, the temperature of the incinerator in the step 2 is not lower than 850 ℃, and the optimal operation temperature is 850-870 ℃; the temperature of the second combustion chamber is 1100 ℃, and the optimal temperature is 1000-1200 ℃. However, when the halogen compound content exceeds 1% by weight, the operation temperature is required to be not lower than 1100 ℃.
Furthermore, the residence time of the flue gas of the incinerator and the secondary combustion chamber in the step 2 is about 1-10 seconds, preferably about 2 seconds, so that the emission indexes of various pollutants in the flue gas generated by incineration can be obviously superior to the existing environmental protection standard, and meanwhile, the equipment investment and the operation cost can be effectively reduced.
Further, the flue gas in the step 2 enters a waste heat boiler with a membrane wall structure from a secondary combustion chamber, high-temperature flue gas generates saturated steam and recovers heat through the waste heat boiler, and the temperature of the flue gas at the outlet of the waste heat boiler is 550 ℃. A selective non-catalytic reduction (SNCR) denitration system is arranged at a hearth of the waste heat boiler. And spraying a reducing agent urea solution on a water-cooled wall in a first return hearth of the waste heat boiler under the environment of 900-1050 ℃ to reduce NOx components in the flue gas to generate nitrogen.
Further, the quenching tower system is a concurrent quenching tower. The 550 ℃ flue gas after waste heat recovery and denitration enters a downstream quenching tower, and is quenched by atomized alkali liquor, so that the temperature of the flue gas is reduced to below 200 ℃ within 1s, and the flue gas crosses a temperature range (250-450 ℃) where dioxin is regenerated in a short time, and the regeneration of the dioxin is avoided.
Further, the reaction tower system is a dry reactor. The flue gas after two cooling enters from the bottom of the dry reactor, and SO in the flue gas2The HCl and HF acid gases react with the sprayed lime powder to play a role in deacidification. Spraying about 200 meshes of activated carbon powder while spraying lime powder to adsorb heavy metal and dioxin in flue gas.
Further, the dust remover system includes cyclone and sack cleaner, the granule that is greater than 200um in the cyclone desorption flue gas, the granule that is less than 200um in the sack cleaner desorption flue gas. After deacidification and adsorption by a dry method, the flue gas mixed with the activated carbon powder and the lime powder sequentially enters a cyclone dust collector and a bag type dust collector. After dust in the flue gas is dedusted by the cyclone dust collector, small particles are adsorbed on the surface layer of a filter bag of the dust collector to form a dust layer, and lime in the dust continuously reacts with acid gas in the flue gas;
further, after dust removal by the bag-type dust remover, the flue gas adopts a two-stage wet deacidification process. The primary wet washing adjusts the temperature of the flue gas from about 180 ℃ to about 80 ℃, and the flue gas enters a secondary washing tower for further deacidification after reaching the optimal temperature section of acid-base reaction; and water in the flue gas is removed by a demister at the outlet of the secondary washing tower.
Has the advantages that:
(1) the method provided by the invention utilizes high temperature to carry out incineration treatment on wastes such as garbage and the like and outputs the wastes in the form of high-temperature flue gas, the treatment process is green and environment-friendly, and the emission of pollutants such as dioxin and the like is far lower than the strictest environment-friendly emission standard of European Union and the like.
(2) From an ecological perspective, wastes such as garbage are a source of pollution, but from a resource perspective, garbage is an increasing resource on earth. For example, the method provided by the invention can be used for treating garbage and then generating power, if China can classify the garbage and sufficiently and effectively use the garbage for power generation, 4000-6000 million coal resources can be saved every year.
The technology is developed and used for treating various wastes such as municipal garbage, industrial garbage and the like, changes waste into valuable and has wide market prospect.
Drawings
FIG. 1 is a schematic view of the structure of a method and system for incineration disposal of garbage according to embodiment 1.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of this application and the above-described drawings, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
A method and system for waste incineration disposal as shown in fig. 1, comprising: garbage feeding system, burn burning furnace and second combustion chamber system, pot and SNCR deNOx systems, quench tower system, reaction tower system, dust remover system and deacidification system.
Wherein the garbage feeding system is used for feeding garbage into the incinerator. The waste feeding system comprises a screw feeder 1.
The incinerator and the secondary combustion chamber system are used for carrying out high-temperature incineration treatment on the garbage. The incinerator and secondary combustion chamber system comprises an incinerator 2 and a secondary combustion chamber 3. The temperature of the incinerator 2 is not lower than 850 ℃, and the optimal operation temperature is 850-870 ℃; the temperature of the second combustion chamber 3 is 1100 ℃, and the optimal temperature is 1000-1200 ℃. However, when the halogen compound content exceeds 1% by weight, the operation temperature is required to be not lower than 1100 ℃.
The residence time of the flue gas of the incinerator 2 and the secondary combustion chamber 3 is about 1-10 seconds, preferably about 2 seconds, so that the emission indexes of pollutants in the flue gas generated by incineration are obviously superior to the existing environmental protection standard, and meanwhile, the equipment investment and the operation cost can be effectively reduced.
The waste boiler and the SNCR denitration system are used for recycling and denitration the waste heat of the flue gas generated by burning the flue gas. The waste boiler and SNCR denitration system comprises a waste heat boiler 4. The waste heat boiler 4 is of a membrane type water-cooled wall structure, saturated steam and recovered heat are generated by high-temperature flue gas passing through the waste heat boiler 4, and the temperature of the flue gas at the outlet of the waste heat boiler 4 is 550 ℃. A selective non-catalytic reduction (SNCR) denitration system is arranged at a hearth of the waste heat boiler. And spraying a reducing agent urea solution on a water-cooled wall in a first return hearth of the waste heat boiler under the environment of 900-1050 ℃ to reduce NOx components in the flue gas to generate nitrogen.
The quenching tower system is used for rapidly cooling the flue gas. The quench tower system includes a quench tower 5. The quenching tower 5 is a concurrent quenching tower. The 550 ℃ flue gas after waste heat recovery and denitration enters a quench tower 5, the flue gas is quenched by atomized alkali liquor, the temperature of the flue gas is reduced to be below 200 ℃ within 1s, the flue gas crosses a temperature range (250-450 ℃) where dioxin is regenerated in a short time, and the regeneration of the dioxin is avoided.
The reaction tower system is used for adsorbing heavy metals and dioxin in the flue gas. The reaction column system includes a dry reactor 6. The flue gas after two cooling enters from the bottom of the dry reactor 6, and SO in the flue gas2The HCl and HF acid gases react with the sprayed lime powder to play a role in deacidification. Spraying about 200 meshes of activated carbon powder while spraying lime powder to adsorb heavy metal and dioxin in flue gas.
The dust remover system is used for carrying out cyclone dust removal and cloth bag dust removal on the flue gas. The dust collector system comprises a cyclone dust collector 7 and a bag-type dust collector 8. The cyclone dust collector 7 removes particles larger than 200um in the flue gas, and the bag-type dust collector 8 removes particles smaller than 200um in the flue gas. After deacidification and adsorption by a dry method, the flue gas mixed with the activated carbon powder and the lime powder sequentially enters a cyclone dust collector 7 and a bag type dust collector 8. After dust in the flue gas is dedusted by the cyclone dust collector 7, small particles are adsorbed on the surface layer of a filter bag of the dust collector to form a dust layer, and lime in the dust continuously reacts with acid gas in the flue gas;
the deacidification system is used for carrying out primary washing and secondary washing deacidification on the flue gas. The deacidification system includes a primary scrubber 9 and a secondary scrubber 10. After dust removal by a bag-type dust remover, the flue gas adopts a two-stage wet deacidification process. The primary washing tower 9 adjusts the temperature of the flue gas from about 180 ℃ to about 80 ℃, and enters the secondary washing tower 10 for further deacidification after reaching the optimal temperature section of acid-base reaction; and water in the flue gas is removed by a demister at the outlet of the secondary washing tower 10.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A method and a system for treating garbage by incineration comprise a garbage feeding system, an incinerator and secondary combustion chamber system, a waste boiler and SNCR denitration system, a quench tower system, a reaction tower system, a dust remover system, a deacidification system and the like. The garbage feeding system receives garbage and then spirally feeds the garbage into the incinerator, the flue gas after incineration and further treatment in the secondary combustion chamber is fed into a waste boiler and an SNCR denitration system to recover flue gas waste heat and denitrate, the flue gas is fed into a quenching tower system to be rapidly cooled, then is fed into a reaction tower system to react, is fed into a deduster system to be dedusted, and is finally fed into a deacidification system to be deacidified and then is discharged after reaching the standard.
2. The method and system for waste incineration disposal according to claim 1, wherein: the main furnace system is composed of 2 incinerators and 1 secondary combustion chamber furnace system, thereby improving the processing capacity of the system and saving the investment of the secondary combustion chamber. The temperature of the incinerator is not lower than 850 ℃, and the optimal operation temperature is 850-870 ℃; the temperature of the second combustion chamber is 1100 ℃, and the optimal temperature is 1000-1200 ℃. However, when the halogen compound content exceeds 1% by weight, the operation temperature is required to be not lower than 1100 ℃.
3. The method and system for waste incineration disposal according to claim 1, wherein: the flue gas enters the waste heat boiler with the membrane type water-cooled wall structure from the secondary combustion chamber, the high-temperature flue gas generates saturated steam and recovers heat through the waste heat boiler, and the temperature of the flue gas at the outlet of the waste heat boiler is 550 ℃. A selective non-catalytic reduction (SNCR) denitration system is arranged at a hearth of the waste heat boiler. And spraying a reducing agent urea solution on a water-cooled wall in a first return hearth of the waste heat boiler under the environment of 900-1050 ℃ to reduce NOx components in the flue gas to generate nitrogen.
4. The method and system for waste incineration disposal according to claim 1, wherein: the quenching tower system is a concurrent quenching tower. The 550 ℃ flue gas after waste heat recovery and denitration enters a downstream quenching tower, and is quenched by atomized alkali liquor, so that the temperature of the flue gas is reduced to below 200 ℃ within 1s, and the flue gas crosses a temperature range (250-450 ℃) where dioxin is regenerated in a short time, and the regeneration of the dioxin is avoided.
5. The method and system for waste incineration disposal according to claim 1, wherein: the reaction tower system is a dry reactor. The flue gas after two cooling enters from the bottom of the dry reactor, and SO in the flue gas2The HCl and HF acid gases react with the sprayed lime powder to play a role in deacidification. Spraying about 200 meshes of activated carbon powder while spraying lime powder to adsorb heavy metal and dioxin in flue gas.
6. The method and system for waste incineration disposal according to claim 1, wherein: the dust remover system comprises a cyclone dust remover and a bag-type dust remover, wherein the cyclone dust remover removes particles larger than 200um in the flue gas, and the bag-type dust remover removes particles smaller than 200um in the flue gas. After deacidification and adsorption by a dry method, the flue gas mixed with the activated carbon powder and the lime powder sequentially enters a cyclone dust collector and a bag type dust collector. After dust in the flue gas is dedusted by the cyclone dust collector, small particles are adsorbed on the surface layer of a filter bag of the dust collector to form a dust layer, and lime in the dust continuously reacts with acid gas in the flue gas.
7. The method and system for waste incineration disposal according to claim 1, wherein: after dust removal by a bag-type dust remover, the flue gas adopts a two-stage wet deacidification process. The primary wet washing adjusts the temperature of the flue gas from about 180 ℃ to about 80 ℃, and the flue gas enters a secondary washing tower for further deacidification after reaching the optimal temperature section of acid-base reaction; and water in the flue gas is removed by a demister at the outlet of the secondary washing tower.
8. A method and system for waste incineration disposal according to claims 1 and 3, wherein: the residence time of the flue gas of the incinerator and the secondary combustion chamber is about 1-10 seconds, preferably about 2 seconds, so that the emission indexes of pollutants in the flue gas generated by incineration are obviously superior to the existing environmental protection standard, and the equipment investment and the operation cost can be effectively reduced.
CN202110157515.2A 2021-02-05 2021-02-05 Method and system for waste incineration treatment Pending CN112797415A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110157515.2A CN112797415A (en) 2021-02-05 2021-02-05 Method and system for waste incineration treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110157515.2A CN112797415A (en) 2021-02-05 2021-02-05 Method and system for waste incineration treatment

Publications (1)

Publication Number Publication Date
CN112797415A true CN112797415A (en) 2021-05-14

Family

ID=75814296

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110157515.2A Pending CN112797415A (en) 2021-02-05 2021-02-05 Method and system for waste incineration treatment

Country Status (1)

Country Link
CN (1) CN112797415A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113464946A (en) * 2021-07-30 2021-10-01 苏州西热节能环保技术有限公司 Device and method for effectively reducing SOx of waste incineration power generation pollutant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113464946A (en) * 2021-07-30 2021-10-01 苏州西热节能环保技术有限公司 Device and method for effectively reducing SOx of waste incineration power generation pollutant

Similar Documents

Publication Publication Date Title
CN101735011B (en) Process for gasification-liquefaction disposal of domestic garbage and organic waste
CN101201167A (en) Apparatus and method for gasification of refuse and hyperthermia melt processing of flying ash
CN101822942B (en) Wet purification method for dioxin and heavy metals in solid waste incineration gas
CN111609406A (en) Method for treating domestic garbage
CN105066135A (en) Small garbage catalytic gasification pyrolysis technology method and equipment thereof
CN112797415A (en) Method and system for waste incineration treatment
CN112377917A (en) Method for denitration of coal-fired power plant boiler by sludge and coal slime cooperative recycling
CN201748434U (en) Rubbish burning processing device
CN109945211B (en) Burning treatment method and system for semi-coke pyrolysis waste gas and waste liquid
WO2018192564A1 (en) Flue gas purification system for domestic waste pyrolysis incinerator
CN113234490A (en) Gasification-based sludge comprehensive utilization system and treatment method
CN112742201A (en) Method and system for purifying waste incineration flue gas
CN205640929U (en) Waste incineration treatment system
CN211011385U (en) Plasma gasification furnace and waste incineration power plant's innocent treatment system
CN112797416A (en) Method and system for incineration treatment of medical waste
CN105602585A (en) Method for gas production from conversion of municipal household garbage treated through low-temperature destructive distillation in tubular furnace
CN209147106U (en) A kind of coal unit coupling Msw Incineration Power-generating System
CN109294624B (en) Garbage melting gasification coupling coal-fired power generation system and process method thereof
CN111121063A (en) Waste incineration flue gas treatment method for controlling dioxin memory effect
CN110848702A (en) Device and method for treating household garbage incineration fly ash by fluidized bed boiler with fly ash washing function
CN214147922U (en) Device for reducing pollutant system treatment in waste incineration power generation tail gas
CN108421806A (en) A kind of refuse gasification cogeneration system with flue gas recirculation
CN212746480U (en) System for treating household garbage
CN213901070U (en) System for domestic waste pyrolysis gasification is chemical chain combustion in coordination
CN210480860U (en) High-efficient hydrogen manufacturing equipment of municipal sludge resourceization

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination