CN115307147A - Stale refuse coupling household refuse treatment device and method - Google Patents

Stale refuse coupling household refuse treatment device and method Download PDF

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Publication number
CN115307147A
CN115307147A CN202210884955.2A CN202210884955A CN115307147A CN 115307147 A CN115307147 A CN 115307147A CN 202210884955 A CN202210884955 A CN 202210884955A CN 115307147 A CN115307147 A CN 115307147A
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CN
China
Prior art keywords
steam
sent
refuse
gasification furnace
water
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Pending
Application number
CN202210884955.2A
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Chinese (zh)
Inventor
许岩韦
鲁润润
刘永付
王进
王沛丽
徐刚
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.)
Everbright Envirotech China Ltd
Everbright Environmental Protection Research Institute Nanjing Co Ltd
Everbright Environmental Protection Technology Research Institute Shenzhen Co Ltd
Original Assignee
Everbright Envirotech China Ltd
Everbright Environmental Protection Research Institute Nanjing Co Ltd
Everbright Environmental Protection Technology Research Institute Shenzhen Co Ltd
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Application filed by Everbright Envirotech China Ltd, Everbright Environmental Protection Research Institute Nanjing Co Ltd, Everbright Environmental Protection Technology Research Institute Shenzhen Co Ltd filed Critical Everbright Envirotech China Ltd
Priority to CN202210884955.2A priority Critical patent/CN115307147A/en
Publication of CN115307147A publication Critical patent/CN115307147A/en
Pending legal-status Critical Current

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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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/10—Adaptations for driving, or combinations with, electric generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B33/00—Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
    • F22B33/18—Combinations of steam boilers with other apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22G—SUPERHEATING OF STEAM
    • F22G1/00—Steam superheating characterised by heating method
    • 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
    • F23G5/44—Details; Accessories
    • F23G5/46—Recuperation of heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2206/00—Waste heat recuperation
    • F23G2206/10—Waste heat recuperation reintroducing the heat in the same process, e.g. for predrying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2206/00—Waste heat recuperation
    • F23G2206/20—Waste heat recuperation using the heat in association with another installation
    • F23G2206/203—Waste heat recuperation using the heat in association with another installation with a power/heat generating installation
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/12—Heat utilisation in combustion or incineration of waste

Abstract

The invention discloses a stale refuse coupling domestic refuse treatment device and a stale refuse coupling domestic refuse treatment method, wherein the stale refuse coupling domestic refuse treatment device comprises the following steps: domestic waste treatment mechanism includes: an incinerator; the evaporator is connected with the incinerator and used for exchanging heat between water and the flue gas to form saturated steam; stale refuse treatment mechanism comprising: the gasification furnace is used for generating gasification reaction of the aged garbage under the action of water vapor and hot air to generate new gasification gas; the heat exchanger is connected with the gasification furnace and the evaporator and is used for exchanging heat between saturated steam generated by the evaporator and gasified gas generated by the gasification furnace to form superheated steam; the water vapor generator is connected with the heat exchanger and the gasification furnace and used for heating water by using the superheated steam sent by the heat exchanger to form water vapor, and the water vapor is sent to the gasification furnace; and the air heater is connected with the heat exchanger, the gasification furnace and the incinerator and used for exchanging heat between the gasified gas sent by the heat exchanger and the air to form hot air, the hot air is sent into the gasification furnace, and the gasified gas is sent into the incinerator. The invention deeply couples the stale refuse treatment with the domestic refuse incineration treatment.

Description

Stale refuse coupling household refuse treatment device and method
Technical Field
The invention belongs to the technology of waste incineration treatment, and particularly relates to a stale waste coupling household waste treatment device and method.
Background
Most of the existing stale refuse treatment methods directly enter a refuse incinerator for incineration, but stale refuse has high content of ash and soil and is easy to generate a large amount of fly ash, which brings great impact on a flue gas purification part in a refuse incineration process system; meanwhile, the current garbage incineration system runs at almost full load, and if stale garbage is burnt, the garbage incinerator is required to run at an overload state, so that the service life of the garbage incinerator is shortened.
Disclosure of Invention
The invention provides a device and a method for treating stale refuse coupled with domestic refuse so as to reduce the influence of direct burning of stale refuse in a furnace on equipment.
The invention adopts the following technical scheme.
A stale refuse-coupled domestic refuse treatment apparatus comprising:
domestic waste treatment mechanism includes:
the incinerator is used for introducing the household garbage, gasified gas and air for incineration to generate smoke;
domestic waste processing mechanism still includes:
the evaporator is connected with the incinerator and used for exchanging heat between water and the flue gas to form saturated steam;
stale refuse treatment mechanism comprising:
the gasification furnace is used for introducing stale garbage, hot air, water vapor and gasification gas, the gasification gas is combusted in the gasification furnace, and the stale garbage generates gasification reaction under the action of the water vapor and the hot air to generate new gasification gas;
the heat exchanger is connected with the gasification furnace and the evaporator and is used for exchanging heat between saturated steam generated by the evaporator and gasified gas generated by the gasification furnace to form superheated steam;
the water vapor generator is connected with the heat exchanger and the gasification furnace and used for heating water by using the superheated steam sent by the heat exchanger to form water vapor, and the water vapor is sent to the gasification furnace;
and the air heater is connected with the heat exchanger, the gasification furnace and the incineration furnace and used for exchanging heat between the gasified gas sent by the heat exchanger and air to form hot air, the hot air is sent into the gasification furnace, and the gasified gas is sent into the incineration furnace.
Further, the household garbage disposal mechanism further comprises:
the superheater is connected with the evaporator and used for heating saturated steam through flue gas to generate superheated steam;
the steam turbine is connected with the superheater and driven to rotate by superheated steam, and the steam turbine is used for being connected with a generator to generate electricity;
and the economizer is connected with the superheater and the evaporator and used for heating water through flue gas, and the heated water is sent into the evaporator.
Further, the domestic waste processing mechanism still includes:
and the deaerator is connected with the water vapor generator, the steam turbine and the coal economizer, and condensed water formed by cooling superheated steam in saturated steam and condensed water formed by cooling the superheated steam in the steam turbine are introduced into the coal economizer after being deaerated.
The invention also provides a method for treating the aged refuse coupled with the domestic refuse, which comprises the following steps:
s1: introducing the household garbage, gasified gas and air into a garbage incinerator to burn to generate smoke;
s2: introducing the aged garbage, hot air, water vapor and gasified gas into a gasification furnace, burning the gasified gas in the gasification furnace, and carrying out gasification reaction on the aged garbage under the action of the water vapor and the hot air to generate new gasified gas;
s3: and (3) repeatedly executing the step (S1) and the step (S2), forming steam by using the smoke heating water generated in the step (S1) for use by the gasification furnace, heating air by using the gasified gas generated in the step (S2) for use by the hot air supply furnace, and using the gasified gas generated in the step (S2) for use by the garbage incinerator.
Further, the flue gas is processed by an evaporator, a superheater, an economizer and a flue gas purification system in sequence and then is discharged into the atmosphere through a chimney; the flue gas exchanges heat with water in the evaporator to form saturated steam, one part of the saturated steam enters the superheater to be further heated to generate superheated steam, the generated superheated steam is sent to the steam turbine to generate power, the other part of the saturated steam enters the heat exchanger to exchange heat with the gasified gas generated in the S2 to generate superheated steam, and the superheated steam is sent to the steam generator to heat the water to generate steam and then enters the gasification furnace.
And further, after the gasified gas generated in the S2 is sent into a heat exchanger to exchange heat with saturated steam to generate superheated steam, the gasified gas is cooled and sent into an air heater to exchange heat with air to form hot air, and the gasified gas after further cooling is sent into the garbage incinerator.
Further, steam after work is done in the steam turbine is sent into a condenser to be condensed into water, the water is deoxidized through a deaerator and then sent into an economizer to exchange heat with flue gas, then the steam is sent into a steam pocket, the water in the steam pocket enters an evaporator, and the steam in the steam pocket is sent into a superheater or a heat exchanger.
Further, after being sent to a deaerator for deoxidization, the condensed water in the water vapor generator is sent to an economizer for heat exchange with the flue gas and then sent to a steam drum.
Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
(1) The stale refuse treatment process and the domestic refuse incineration treatment process are deeply coupled, only a small amount of equipment is needed to be added, and a flue gas purification system is shared;
(2) The aged garbage does not directly enter the garbage incinerator, so that the service life of the conventional garbage incinerator equipment is not shortened;
(3) The gasification mode is adopted to treat the stale waste, so that the smoke content in the generated smoke (the gasification gas in the application) can be effectively reduced, and the treatment capacity of a smoke purification system cannot be influenced;
(4) The gasification temperature is lower than the incineration temperature, so that elements such as heavy metals, na, K and the like in the stale refuse can not be carried by the gasified gas and are retained in the bottom slag, the comprehensive utilization of the subsequent bottom slag is not influenced, and the impact on a flue gas purification system in the refuse incineration treatment can not be caused;
(5) The two processes have higher coupling degree on material energy, but are easy to decouple, and if the treatment of the stale refuse is finished, the whole stale refuse treatment process can be abandoned without influencing the household refuse incineration treatment process;
(6) The process parameters can be designed according to the daily treatment capacity of the stale refuse without considering the overload capacity of the existing refuse incineration system.
Drawings
Fig. 1 is a schematic block diagram of a stale refuse-coupled domestic refuse treatment apparatus according to this embodiment.
Fig. 2 is a schematic block diagram of the stale refuse handling mechanism of fig. 1.
Fig. 3 is a schematic block diagram of the household garbage disposal facility of fig. 1.
Detailed Description
The invention is further described below with reference to specific embodiments and the accompanying drawings.
Referring to fig. 1-3, the present invention provides a stale refuse coupling domestic refuse treatment device, which includes a domestic refuse treatment mechanism and a stale refuse treatment mechanism.
The household garbage treatment mechanism comprises an incinerator, a flue gas treatment component and a power generation component. The incinerator is used for incinerating garbage and generating smoke. The flue gas processing assembly cools and filters the flue gas and then discharges the flue gas. The power generation assembly utilizes the heat of the recovered flue gas to generate power.
The incinerator is used for introducing household garbage, gasified gas and air to burn to generate flue gas. The gasified gas is generated after the stale refuse is treated by the stale refuse treatment mechanism.
The flue gas treatment component comprises an evaporator, a superheater, an economizer, a flue gas purification system and a chimney. The flue gas passes through the evaporator, the superheater, the economizer and the flue gas purification system in sequence and is discharged from the chimney.
And the evaporator is connected with the incinerator and used for exchanging heat between water and the flue gas to form saturated steam.
And the superheater is connected with the evaporator and used for heating saturated steam through flue gas to generate superheated steam.
And the economizer is connected with the superheater and the evaporator and used for heating water through flue gas, and the heated water is sent into the evaporator.
And the flue gas purification system is connected with the economizer and is used for filtering and adsorbing the flue gas, and the purified flue gas is discharged from a chimney.
In the illustrated embodiment, the domestic waste treatment facility further comprises a steam drum. The steam drum is respectively connected with the evaporator, the superheater, the economizer and the stale refuse treatment mechanism.
The water of the economizer and the steam of the evaporator are both sent into a steam drum, and the steam drum is internally divided into water and steam with saturated temperature. The water is sent into an evaporator to be heated to form steam, part of saturated steam is sent into a superheater to be heated to form superheated steam, and part of saturated steam is sent into a stale garbage treatment mechanism.
The power generation component comprises a steam turbine, a generator, a condenser and a deaerator.
The steam turbine is connected with the superheater and used for driving the steam turbine to rotate through superheated steam, the steam turbine is connected with the generator, and the rotating steam turbine drives the generator to generate electricity and then sends the electricity into a power grid.
And discharging the steam after the work is done through the tail part of the steam turbine, enabling the steam to enter a condenser to be condensed into water, and deoxidizing through a deaerator. Then enters the economizer again under the action of the feed water pump to complete circulation.
It will be appreciated that the domestic waste management apparatus may further comprise a water pump to deliver water.
The stale refuse treatment mechanism comprises a gasification furnace, a heat exchanger, a water vapor generator and an air heater.
The gasification furnace is used for introducing stale garbage, hot air, steam and gasification gas, the gasification gas is combusted in the gasification furnace, and the stale garbage generates gasification reaction under the action of the steam and the hot air to generate new gasification gas.
And the heat exchanger is connected with the gasification furnace and the evaporator and is used for exchanging heat between the saturated steam generated by the evaporator and the gasified gas generated by the gasification furnace to form superheated steam.
And the water vapor generator is connected with the heat exchanger and the gasification furnace and is used for heating water by using the superheated steam sent by the heat exchanger to form water vapor, and the water vapor is sent to the gasification furnace.
The superheated steam is condensed into condensed water, and the condensed water is introduced into a deaerator for subsequent treatment.
And the air heater is connected with the heat exchanger, the gasification furnace and the incineration furnace and used for exchanging heat between the gasified gas sent by the heat exchanger and air to form hot air, the hot air is sent into the gasification furnace, and the gasified gas is sent into the incineration furnace.
The embodiment of the invention also provides a method for treating the aged refuse coupled with the domestic refuse, which comprises the following steps:
s1: introducing the household garbage, gasified gas and air into a garbage incinerator to burn to generate smoke;
s2: introducing the stale refuse, hot air, water vapor and gasified gas into a gasification furnace, burning the gasified gas in the gasification furnace, and carrying out gasification reaction on the stale refuse under the action of the water vapor and the hot air to generate new gasified gas;
s3: and (3) repeatedly executing the step (S1) and the step (S2), forming steam by using the smoke heating water generated in the step (S1) for use by the gasification furnace, heating air by using the gasified gas generated in the step (S2) for use by the hot air supply furnace, and using the gasified gas generated in the step (S2) for use by the garbage incinerator.
Further, the flue gas is processed by an evaporator, a superheater, an economizer and a flue gas purification system in sequence and then is discharged into the atmosphere through a chimney; the flue gas exchanges heat with water in the evaporator to form saturated steam, one part of the saturated steam enters the superheater to be further heated to generate superheated steam, the generated superheated steam is sent to the steam turbine to generate power, the other part of the saturated steam enters the heat exchanger to exchange heat with the gasified gas generated in the S2 to generate superheated steam, and the superheated steam is sent to the steam generator to heat the water to generate steam and then enters the gasification furnace.
And further, after the gasified gas generated in the S2 is sent into a heat exchanger to exchange heat with saturated steam to generate superheated steam, the gasified gas is cooled and sent into an air heater to exchange heat with air to form hot air, and the gasified gas after further cooling is sent into the garbage incinerator.
Further, steam after work is done in the steam turbine is sent into a condenser to be condensed into water, the water is deoxidized through a deaerator and then sent into an economizer to exchange heat with flue gas, then the steam is sent into a steam pocket, the water in the steam pocket enters an evaporator, and the steam in the steam pocket is sent into a superheater or a heat exchanger.
Further, after being sent to a deaerator for deoxidization, the condensed water in the water vapor generator is sent to an economizer for heat exchange with the flue gas and then sent to a steam drum.
The flow of each component is specifically illustrated as follows:
garbage/air/flue gas flow: after entering the garbage incinerator, the household garbage is incinerated under the supply of air, wherein gasified gas generated by stale garbage treatment also enters the incinerator to be incinerated together to generate a large amount of hot flue gas, the hot flue gas sequentially passes through the evaporator, the superheater and the economizer to enter a flue gas purification system, and various pollutants are removed and then are discharged to the atmosphere through a chimney. The bottom slag generated after the household garbage is incinerated is discharged from the incinerator, enters the slag bin together with the bottom slag generated by the gasifier in the stale garbage treatment process for storage, and is then recycled uniformly.
A water circulation flow: the method comprises the following steps that feed water is fed into an economizer through a feed water pump, the feed water is subjected to heat exchange with hot flue gas and then fed into a steam drum, the steam drum contains water and steam reaching saturation temperature, the saturated water enters an evaporator and is subjected to heat exchange with the hot flue gas to become saturated steam, a part of the saturated steam enters a superheater to be further heated to generate superheated steam, the superheated steam enters a steam turbine to drive the steam turbine to rotate, the steam turbine is connected with a generator, the rotating steam turbine drives the generator to generate power, and then the power is fed into a power grid; the other part of the waste gas enters a heat exchanger of the stale waste treatment process to exchange heat with the gasified gas to generate superheated steam, and the temperature of the gasified gas is reduced at the same time. And discharging the steam after the work is done through the tail part of the steam turbine, condensing the steam into water in a condenser, and feeding the water into a deaerator through a condensate pump. Then enters the economizer again under the action of the feed water pump to complete water circulation.
A stale refuse treatment subprocess: the stale garbage, the hot air, the water vapor and part of gasified gas enter the gasification furnace together, gasification reaction is generated under the action of the water vapor and the hot air, and part of gasified gas is combusted in the gasification furnace, so that the gasification reaction is ensured to be smoothly carried out. The generated gasified gas exchanges heat with saturated steam from the household garbage incineration treatment process through a heat exchanger, enters an air heater after being cooled, and exchanges heat with normal-temperature air to obtain gasified gas with lower temperature. Part of gasified gas enters a gasification furnace for incineration, and the gasification reaction in the gasification furnace is maintained; the rest part can be sent into a garbage incinerator for combustion, and can be moved for other uses according to actual needs.
The normal temperature air enters an air heater to exchange heat with gasified air, and the obtained hot air enters a gasification furnace to carry out gasification reaction with the stale garbage; tap water generates water vapor through a water vapor generator, and the water vapor enters a gasification furnace to carry out gasification reaction with stale garbage; saturated steam from the household garbage incineration treatment process enters a heat exchanger, generates superheated steam after exchanging heat with gasified gas, enters a water vapor generator to heat tap water, is cooled to be condensed water, and enters a deaerator of the household garbage incineration treatment process again.
The examples described herein are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall within the protection scope of the present invention.

Claims (8)

1. A stale refuse-coupled domestic refuse treatment apparatus comprising:
domestic waste treatment mechanism includes:
the incinerator is used for introducing the household garbage, gasified gas and air for incineration to generate smoke;
its characterized in that, domestic waste treatment mechanism still includes:
the evaporator is connected with the incinerator and used for exchanging heat between water and the flue gas to form saturated steam;
stale refuse treatment mechanism comprising:
the gasification furnace is used for introducing stale garbage, hot air, steam and gasification gas, the gasification gas is combusted in the gasification furnace, and the stale garbage generates gasification reaction under the action of the steam and the hot air to generate new gasification gas;
the heat exchanger is connected with the gasification furnace and the evaporator and is used for exchanging heat between saturated steam generated by the evaporator and gasified gas generated by the gasification furnace to form superheated steam;
the water vapor generator is connected with the heat exchanger and the gasification furnace and used for heating water by using the superheated steam sent by the heat exchanger to form water vapor, and the water vapor is sent to the gasification furnace;
and the air heater is connected with the heat exchanger, the gasification furnace and the incineration furnace and used for exchanging heat between the gasified gas sent by the heat exchanger and air to form hot air, the hot air is sent into the gasification furnace, and the gasified gas is sent into the incineration furnace.
2. The stale refuse-coupled domestic refuse treatment apparatus according to claim 1,
domestic waste treatment mechanism still includes:
the superheater is connected with the evaporator and used for heating saturated steam to generate superheated steam;
the steam turbine is connected with the superheater and driven to rotate by superheated steam, and the steam turbine is used for being connected with a generator to generate electricity;
and the economizer is connected with the superheater and the evaporator and used for heating water through flue gas, and the heated water is sent into the evaporator.
3. The coupling household garbage disposal apparatus according to claim 2,
domestic waste treatment mechanism still includes:
and the deaerator is connected with the water vapor generator, the steam turbine and the coal economizer, and condensed water formed by cooling superheated steam in saturated steam and condensed water formed by cooling the superheated steam in the steam turbine are introduced into the coal economizer after being deaerated.
4. A stale refuse coupling domestic refuse treatment method is characterized by comprising the following steps:
s1: introducing the household garbage, gasified gas and air into a garbage incinerator for incineration to generate flue gas;
s2: introducing the stale refuse, hot air, water vapor and gasified gas into a gasification furnace, burning the gasified gas in the gasification furnace, and carrying out gasification reaction on the stale refuse under the action of the water vapor and the hot air to generate new gasified gas;
s3: and (3) repeatedly executing the step (S1) and the step (S2), forming steam by using the smoke heating water generated in the step (S1) for use by the gasification furnace, heating air by using the gasified gas generated in the step (S2) for use by the hot air supply furnace, and using the gasified gas generated in the step (S2) for use by the garbage incinerator.
5. The stale refuse-coupled household refuse treatment method according to claim 4, wherein the flue gas is treated by an evaporator, a superheater, an economizer and a flue gas purification system in sequence and then discharged to the atmosphere through a chimney; the flue gas exchanges heat with water in the evaporator to form saturated steam, part of the saturated steam enters the superheater to be further heated, the generated superheated steam is sent to the steam turbine to generate electricity, the other part of the saturated steam enters the heat exchanger to exchange heat with the gasified gas generated in the S2 to generate superheated steam, and the superheated steam is sent to the steam generator to heat the water to generate steam and then enters the gasification furnace.
6. The coupling household garbage treatment method for the stale garbage according to claim 5, wherein the gasified gas generated in S2 is sent to a heat exchanger to exchange heat with saturated steam to generate superheated steam, then the gasified gas is cooled and sent to an air heater to exchange heat with air to form hot air, and the gasified gas after being further cooled is sent to the garbage incinerator.
7. The method for treating the aged refuse coupled with the domestic refuse according to claim 5, wherein steam after work is done in a steam turbine is sent to a condenser to be condensed into water, then is deoxidized by a deaerator, and is sent to an economizer to exchange heat with flue gas, and then is sent to a steam drum, water in the steam drum enters an evaporator, and steam in the steam drum is sent to a superheater or a heat exchanger.
8. The method for treating the stale refuse coupled with the domestic refuse according to claim 7, wherein the water condensed in the water vapor generator is sent to a deaerator to be deaerated, and then sent to a coal economizer to exchange heat with the flue gas and then sent to a steam drum.
CN202210884955.2A 2022-07-26 2022-07-26 Stale refuse coupling household refuse treatment device and method Pending CN115307147A (en)

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CN202210884955.2A CN115307147A (en) 2022-07-26 2022-07-26 Stale refuse coupling household refuse treatment device and method

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Application Number Priority Date Filing Date Title
CN202210884955.2A CN115307147A (en) 2022-07-26 2022-07-26 Stale refuse coupling household refuse treatment device and method

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Publication Number Publication Date
CN115307147A true CN115307147A (en) 2022-11-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116518377A (en) * 2023-06-14 2023-08-01 广州环投从化环保能源有限公司 Method, device, equipment and storage medium for processing solid stock garbage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116518377A (en) * 2023-06-14 2023-08-01 广州环投从化环保能源有限公司 Method, device, equipment and storage medium for processing solid stock garbage
CN116518377B (en) * 2023-06-14 2023-11-21 广州环投从化环保能源有限公司 Method, device, equipment and storage medium for processing solid stock garbage

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