CN105689360B - A kind of system and technique of the domestic garbage burning electricity generation that gasified using coal gas of converter - Google Patents
A kind of system and technique of the domestic garbage burning electricity generation that gasified using coal gas of converter Download PDFInfo
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- CN105689360B CN105689360B CN201610123328.1A CN201610123328A CN105689360B CN 105689360 B CN105689360 B CN 105689360B CN 201610123328 A CN201610123328 A CN 201610123328A CN 105689360 B CN105689360 B CN 105689360B
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- 239000003034 coal gas Substances 0.000 title claims abstract description 65
- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 43
- 230000005611 electricity Effects 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000002309 gasification Methods 0.000 claims abstract description 90
- 238000001816 cooling Methods 0.000 claims abstract description 42
- 238000011084 recovery Methods 0.000 claims abstract description 14
- 238000002485 combustion reaction Methods 0.000 claims abstract description 13
- 238000000197 pyrolysis Methods 0.000 claims abstract description 4
- 239000002699 waste material Substances 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 229910052799 carbon Inorganic materials 0.000 claims description 13
- 238000003860 storage Methods 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000005979 thermal decomposition reaction Methods 0.000 claims description 7
- 238000006392 deoxygenation reaction Methods 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims 1
- 239000002893 slag Substances 0.000 claims 1
- 239000010791 domestic waste Substances 0.000 abstract description 4
- 238000010248 power generation Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 44
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 239000003546 flue gas Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000009628 steelmaking Methods 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 238000004056 waste incineration Methods 0.000 description 2
- 208000005623 Carcinogenesis Diseases 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000036952 cancer formation Effects 0.000 description 1
- 231100000504 carcinogenesis Toxicity 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001754 furnace pyrolysis Methods 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- 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
- F23G5/08—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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/02—Gases or liquids enclosed in discarded articles, e.g. aerosol cans or cooling systems of refrigerators
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Gasification And Melting Of Waste (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of system using coal gas of converter gasification domestic garbage burning electricity generation, including:Converter cooling residual heat boiler (2), for carrying out preliminary heat recovery to caused coal gas of converter in converter (1);Pyrolysis can occur in the presence of coal gas of converter for rotary kiln type gasification furnace (3), the house refuse being input in rotary kiln type gasification furnace (3);Secondary chamber's boiler (4), gasification gas and coal gas of converter in rotary kiln type gasification furnace (3) enter in secondary chamber's boiler (4) and the combustion heat release in secondary chamber's boiler (4), to produce high-temperature steam;TRT (5), caused high-temperature steam can be transported in TRT (5) in secondary chamber's boiler (4), to be generated electricity.The invention also discloses a kind of technique using coal gas of converter gasification domestic garbage burning electricity generation.The present invention utilizes coal gas of converter gasification process domestic waste, and by the direct combustion power generation of coal gas of converter, is advantageous to energy environment protection.
Description
Technical field
Utilized the present invention relates to steel coal gas of converter, burning city domestic garbage processing technology field, more particularly to converter
Coal gas utilizes, refuse gasification incineration technology.
Background technology
In steel plant's converter producing smelting process, the decarburization of oxygen rifle top blowing oxygen can produce a large amount of high concentration CO coal gas of converter, turn
Producer gas is sent into gas chamber after the techniques such as supercooling, purification, dedusting and recycled.The security reliability of this technique, section
Learn recyclability, production capacity is to reclaim the key of coal gas of converter.Overwhelming majority converter coal gas purification in China uses " OG methods " more at present
" LT methods " is recycled, and achieves preferable economic benefit.
Due to the intrinsic particularity of coal gas of converter, there is also more problem for its removal process.Wherein, " OG methods " needs to consume
A large amount of cooling waters cool down rapidly 900~1000 DEG C of high-temperature flue gas, and water resources consumption amount is big, and a large amount of afterheat of converter gas do not have
It is utilized." LT methods " is although system recovery coal gas of converter can reduce great lot of water resources use, but supporting spray cooling system is still needed to,
Consume certain water and carry out cooling high temperature flue gas;And system requirements is finer, higher is required to equipment and related Control System, once
Property investment it is big.
Meanwhile RECOVERY OF CONVERTER GAS technique takes CO, O in quarter detection coal gas in removal process2Concentration, work as O2Concentration is not
Just reclaimed more than 30% more than 2%, CO concentration, and below standard gas is then sent into diffusing tower burning row by triple valve
Put, cause mass energy to waste.
With the iterative method of China's industrialization and urbanization, domestic waste problem is also increasingly closed by people
Note.Currently, municipal refuse annual yield in China's is average to produce quantity of refuse about 300kg for each person every year close to 200,000,000 tons, and in recent years
To increase substantially with 10% speed, the quality of life of people has been had a strong impact on.
At present, the mode of China's processing house refuse is mainly garbage loading embeading and waste incineration, but because garbage loading embeading accounts for
With land resource, and because China human mortality distributed pole is uneven, in the big area of the density of population, domestic waste provides with soil
Source contradiction in short supply is becoming increasingly acute, and is badly in need of increasing waste incineration and garbage reclamation.Simultaneously as component of refuse is extremely complex,
It can be produced with organic pollutions such as carcinogenesis bioxin in direct burning process, cause the environmental pollution of getting worse.
The content of the invention
It is an object of the invention to provide a kind of cooling water consumption that can not only be avoided during RECOVERY OF CONVERTER GAS and remaining
Heat leakage, caused environmental problem utilizes coal gas of converter gasification house refuse when and can enough effectively alleviates domestic rubbish disposal
The system and technique of burning electricity generation.
To achieve the above object, the system and work of a kind of domestic garbage burning electricity generation that gasified using coal gas of converter of the invention
The concrete technical scheme of skill is:
A kind of system for the domestic garbage burning electricity generation that gasified using coal gas of converter, including:Converter cooling residual heat boiler, with turning
The gas vent of stove is connected, for carrying out preliminary heat recovery to caused coal gas of converter in converter, to produce steam;Revolution
Kiln formula gasification furnace, it is connected with the gas vent of converter cooling residual heat boiler, the life rubbish being input in rotary kiln type gasification furnace
Pyrolysis can occur in the presence of coal gas of converter for rubbish, to produce gasification gas and carbon containing waste residue;Secondary chamber's boiler, with revolution
The gas vent of kiln formula gasification furnace is connected, and the gasification gas and coal gas of converter in rotary kiln type gasification furnace enter in secondary chamber's boiler
And the combustion heat release in secondary chamber's boiler, to produce high-temperature steam;TRT, it is connected with secondary chamber boiler, secondary chamber's boiler
In caused high-temperature steam can be transported in TRT, to be generated electricity.
A kind of technique for the domestic garbage burning electricity generation that gasified using coal gas of converter, is comprised the following steps:Turn caused by converter
Producer gas, which enters in converter cooling residual heat boiler, carries out preliminary heat recovery, to produce steam;More than coal gas of converter is cooled down by converter
Heat boiler enters rotary kiln type gasification furnace, to be internally formed hot environment, the house refuse of pretreatment in rotary kiln type gasification furnace
Rotary kiln type gasification furnace is sent into through life refuse feeding device, and the hot environment inside rotary kiln type gasification furnace issues heat
Decomposition reaction, with generation gasification gas and carbon containing waste residue;Caused gasification gas and coal gas of converter enter two in rotary kiln type gasification furnace
Secondary chamber boiler, and the combustion heat release in secondary chamber's boiler, to produce high-temperature steam;Caused high-temperature steam is defeated in secondary chamber's boiler
Deliver in TRT, to be generated electricity.
The present invention's has advantages below using the system and technique of coal gas of converter gasification domestic garbage burning electricity generation:
1) present invention carries out gasification house refuse using converter coal gas high-temperature heat, avoids the spray during coal-gas recovering
Leaching cooling water consumption and waste heat are scattered and disappeared, and caused gas feeding boiler directly burns, and in the absence of gas recovery, qualified discharge is not asked
Topic, can effectively utilize the coal gas of converter energy.
2) present invention gasifies house refuse under the effect of high temperature coal gas of converter, is burned again after producing gasifying gas,
House refuse can be avoided directly to burn the generation of the organic pollutions such as Shi bioxin, and filled out after first domestic garbage gasification is handled
Bury, can effectively reduce house refuse volume, reduce directly landfill to appropriation of land.
Brief description of the drawings
Fig. 1 is the structural representation of the system using coal gas of converter gasification domestic garbage burning electricity generation of the present invention;
Fig. 2 is the structural representation of the kiln gas gasifier in the present invention.
Embodiment
In order to be better understood by the purpose of the present invention, structure and function, below in conjunction with the accompanying drawings, a kind of of the present invention is utilized
The system and technique of coal gas of converter gasification domestic garbage burning electricity generation do further detailed description.
As shown in figure 1, the system using coal gas of converter gasification domestic garbage burning electricity generation of the present invention includes being sequentially connected with
Converter cooling residual heat boiler 2, rotary kiln type gasification furnace 3, secondary chamber's boiler 4 and TRT 5.Wherein, converter cooling residual heat
Boiler 2 is connected with the gas vent of converter 1, for carrying out preliminary heat recovery to caused coal gas of converter in converter 1, with production
Raw steam;Rotary kiln type gasification furnace 3 is connected with the gas vent of converter cooling residual heat boiler 2, is input to rotary kiln type gasification
Pyrolysis can occur in the presence of coal gas of converter for the house refuse in stove 3, to produce gasification gas and carbon containing waste residue;It is secondary
Room boiler 4 is connected with the gas vent of rotary kiln type gasification furnace 3, gasification gas and coal gas of converter in rotary kiln type gasification furnace 3
Into in secondary chamber's boiler 4 and the combustion heat release in secondary chamber's boiler 4, to produce high-temperature steam;TRT 5 and secondary chamber's pot
Stove 4 is connected, and caused high-temperature steam can be transported in TRT 5 in secondary chamber's boiler 4, to be generated electricity.
Further, the drum 21 in converter cooling residual heat boiler 2 is connected with storage heater 6, is produced in converter cooling residual heat boiler 2
Raw steam can carry out accumulation of heat pressure regulation after being drawn by drum 21 into storage heater 6, to be changed into continuous, stable low-pressure steam.Should
It is noted that the outlet conduit of storage heater 6 is divided into two-way, wherein the steam jet 31 in rotary kiln type gasification furnace 3 is connected all the way,
Connect deaerating device 7 all the way in addition.
Specifically, steam jet 31 is provided with rotary kiln type gasification furnace 3, caused by converter cooling residual heat boiler 2
Steam is injected to back by the steam jet 31 that is delivered to after the pressure regulation of storage heater 6 in rotary kiln type gasification furnace 3 by steam jet 31
In kiln type gasification furnace 3, steam and carbon containing waste residue caused by house refuse thermal decomposition that steam jet 31 sprays can be in rotary kilns
Water gas reaction further occurs in formula gasification furnace 3, to produce gasification gas and rubbish waste residue.
Deaerating device 7 respectively with the drum 41 in the drum 21 and secondary chamber's boiler 4 in converter cooling residual heat boiler 2
It is connected, to provide recirculated water for the drum 41 in the drum 21 and secondary chamber's boiler 4 in converter cooling residual heat boiler 2.Wherein, turn
Caused steam after the pressure regulation of storage heater 6 by that can be delivered in deaerating device 7 in stove cooling residual heat boiler 2, to be used as deoxygenation
Thermal source.
Further, as shown in Fig. 2 the tilting furnace installation of rotary kiln type gasification furnace 3, angle of inclination is preferably 3~5 °, stove
The body entry position circle of contact is evenly equipped with steam jet 31, and body of heater middle part installs rotating driving device 32 additional, and inboard wall of furnace body is disposed with
Heat-storing material 33, the gas outlet of body of heater afterbody are provided with cyclone separator 34.Wherein, the top of cyclone separator 34
Outlet is connected with secondary chamber boiler 4, and outlet at bottom is connected with deslagging device 8, and the gas of the separation of cyclone separator 34 is into two
Burnt in secondary chamber boiler 4, separated waste residue then enters deslagging device 8, by being arranged outside deslagging device.Further, since coal gas of converter
Discontinuity, it is preferred on the connecting pipe of rotary kiln type gasification furnace 3 and converter cooling residual heat boiler 2 to install water-cooled push-pull valve additional
35, push-pull valve is opened when steelmaking converter is normally smelted, and push-pull valve is closed when blowing out or shove charge.
Further, rotary kiln type gasification furnace 3 is connected with life refuse feeding device 9.Wherein, to prevent from leaking out, life rubbish
Rubbish feed arrangement 9 is preferably that three-level delays storehouse feed system.Specifically, during system feeding, one-level discharge valve is opened, other dischargings
Valve is closed;When the slow storehouse quantity of refuse of one-level reaches certain reserves, one-level discharge valve is closed, and two level discharge valve is opened, and rubbish enters two
The slow storehouse ... of level the like complete fill process.
Further, the exhanst gas outlet of secondary chamber's boiler 4 is connected with smoke processing system, and smoke processing system includes sequentially connecting
Smoke eliminator 10, dust arrester 11, frequency converting induced draft fan 12 and the chimney 13 connect.In addition, to avoid sending out in secondary chamber's boiler 4
Raw flame-out phenomenon, the gaseous mixture porch of secondary chamber's boiler 4 preferably install normal burner 42 additional, fuel can use natural gas,
Waste oil etc..
As shown in figure 1, the technique of the domestic garbage burning electricity generation that gasified using coal gas of converter of the present invention, including following step
Suddenly:
First, coal gas of converter caused by converter 1, which enters in converter cooling residual heat boiler 2, carries out preliminary heat recovery, with production
Raw steam.
Secondly, coal gas of converter enters rotary kiln type gasification furnace 3 by converter cooling residual heat boiler 2, to gasify in rotary kiln type
Stove 3 is internally formed hot environment, and the house refuse of pretreatment is sent into rotary kiln type gasification furnace 3 through life refuse feeding device 9, and
Hot environment inside rotary kiln type gasification furnace 3 issues heat decomposition reaction, with generation gasification gas and carbon containing waste residue.
Then, caused gasification gas and coal gas of converter enter secondary chamber's boiler 4 in rotary kiln type gasification furnace 3, and secondary
Combustion heat release in room boiler 4, to produce high-temperature steam, flue gas caused by burning enters follow-up smoke eliminator 10, dedusting
Device 11 is handled, and is introduced chimney 13 by frequency converting induced draft fan 12 and be discharged into atmospheric environment.
Finally, caused high-temperature steam is delivered in TRT 5 in secondary chamber's boiler 4, to be generated electricity.
Wherein, caused steam can be sent into rotary kiln type after pressure regulation by steam jet 31 in converter cooling residual heat boiler 2
In gasification furnace 3, steam and carbon containing waste residue caused by house refuse thermal decomposition that steam jet 31 sprays can gasify in rotary kiln type
Water gas reaction occurs in stove 3, to produce gasification gas and rubbish waste residue.
Meanwhile caused steam can be also delivered in deaerating device 7 after pressure regulation in converter cooling residual heat boiler 2,
Using as deoxygenation thermal source, deaerating device 7 respectively with the drum and secondary chamber's boiler 4 in converter cooling residual heat boiler 2
Drum is connected, to provide recirculated water for the drum 41 in the drum 21 and secondary chamber's boiler 4 in converter cooling residual heat boiler 2.
The present invention's is gasified using the system and technology utilization coal gas of converter of coal gas of converter gasification domestic garbage burning electricity generation
Domestic waste is handled, domestic rubbish disposal is expanded to iron and steel domain;Meanwhile by the direct combustion power generation of coal gas of converter, keep away
Unsuitable gas recovery burning empties phenomenon during exempting from recycling, is advantageous to energy environment protection.
Embodiment 1:
There are 2 pneumatic steelmaking production lines in certain steel plant, and the maximum dress iron water amount of separate unit converter reaches 125t.Caused by steelmaking converter
Coal gas of high temperature (~1850 DEG C), temperature is reduced to 1300 DEG C after converter cooling residual heat boiler recovered steam, subsequently into rotary kiln
Formula gasification furnace.Rotary kiln type gasification stove internal wall heat-storing material absorbs flue gas heat and carries out accumulation of heat, and hot environment is formed in furnace interior;
The house refuse of pretreatment is sent into rotary kiln type gasification furnace through feed system, be brought rapidly up under high temperature furnace inner environment to 700~
800 DEG C, pyrolysis generation gasification gas and carbon containing waste residue occurs.
The steam of converter cooling residual heat boiler recovery is sent into rotary kiln type gasification furnace after storage heater pressure regulation, with thermal decomposition production
Water gas reaction further occurs for raw carbon containing waste residue, generates high heating value garbage gasifying gas.Gasification gas and converter caused by final
Gas mixture body enters secondary chamber's boiler, and abundant combustion heat release produces high-temperature flue gas under hot wind for combustion supporting;Caused high temperature cigarette
Gas enters secondary chamber's boiler furnace by absorbing and cooling temperature, and it is net that flue gas purification system, dust removal installation processing are entered under air-introduced machine effect
Change, be discharged into atmospheric environment.
Soft water from water treatment station, after deaerating type of cycles deoxygenation, secondary chamber's boiler furnace is pumped into by feedwater and absorbs cigarette
Gas heat release, eventually become high-temperature steam feeding TRT and generated electricity, complete whole thermodynamic cycle process.
In order to avoid mixture combustion stops working, in secondary chamber's mixed gas in boiler entry position, a normal burner is set,
Fuel can use natural gas or waste oil etc..
In whole circulation system, converter cooling residual heat boiler and secondary chamber's boiler feedwater are all from same set of feedwater
Deaerating type of cycles.The steam of converter cooling residual heat boiler recovery is collected through drum enters storage heater pressure regulation, is divided into two-way:Steam all the way
It is sent into deaerating type of cycles and carries out deoxygenation, system is no longer rely on other thermals source;And another way steam is sent into revolution kiln gas as gasifying agent
Change stove and carry out gasification reaction.Converter cooling residual heat boiler and secondary is respectively fed to by feed pump after the feedwater deaeration of deaerating type of cycles
Room steam generator system.
Due to the discontinuity of coal gas of converter, water-cooled push-pull valve, steel-making are installed additional on rotary kiln type gasification furnace inlet duct
When converter shove charge is stopped transport, push-pull valve is closed, and is opened during operation;Frequency converting induced draft fan is controlled simultaneously, adjusts absorbing quantity.
Using this technique, house refuse is gasified in stove using high temperature coal gas of converter and fired again, can be made full use of
The waste heat of high temperature coal gas of converter, realizes domestic garbage gasification burning disposal.
Embodiment 2:
Reference implementation example 1, house refuse raw material is only changed to the biomass material of pretreatment, steam in gasification furnace will be passed through
Cut-out;Mixed gas is sent into secondary chamber's boiler combustion heat release after kiln gas gasifier afterbody cyclonic separation;It is biomass carbonated
Solid particle recycles after deslagging device cools down.
The present invention is further described by specific embodiment above, it should be understood that, here specifically
Description, should not be construed as the restriction to the spirit and scope of the invention, and one of ordinary skilled in the art is reading this explanation
The various modifications made after book to above-described embodiment, belong to the scope that the present invention is protected.
Claims (10)
- A kind of 1. system for the domestic garbage burning electricity generation that gasified using coal gas of converter, it is characterised in that including:Converter cooling residual heat boiler(2), with converter(1)Gas vent be connected, for converter(1)In caused converter coal Gas carries out preliminary heat recovery, to produce steam;Rotary kiln type gasification furnace(3), with converter cooling residual heat boiler(2)Gas vent be connected, be input to rotary kiln type gas Change stove(3)In house refuse pyrolysis can occur in the presence of coal gas of converter, to produce gasification gas and carbonaceous waste Slag;Secondary chamber's boiler(4), with rotary kiln type gasification furnace(3)Gas vent be connected, rotary kiln type gasification furnace(3)In gas Change gas and coal gas of converter enters secondary chamber's boiler(4)In and in secondary chamber's boiler(4)Middle combustion heat release, to produce high-temperature steam;TRT(5), with secondary chamber's boiler(4)It is connected, secondary chamber's boiler(4)In caused high-temperature steam can be transported to hair Electric installation(5)In, to be generated electricity,Wherein, the converter cooling residual heat boiler(2)In caused steam rotary kiln type gasification furnace is sent into after pressure regulation(3)In, Steam can be in rotary kiln type gasification furnace with carbon containing waste residue caused by house refuse thermal decomposition(3)Middle generation water gas reaction, with Produce gasification gas and rubbish waste residue.
- 2. the system of the domestic garbage burning electricity generation according to claim 1 that gasified using coal gas of converter, it is characterised in that return Kiln type gasification furnace(3)In be provided with steam jet(31), steam jet(31)The steam of ejection produces with house refuse thermal decomposition Raw carbon containing waste residue can be in rotary kiln type gasification furnace(3)Middle generation water gas reaction, to produce gasification gas and rubbish waste residue.
- 3. the system of the domestic garbage burning electricity generation according to claim 2 that gasified using coal gas of converter, it is characterised in that turn Stove cooling residual heat boiler(2)In drum and storage heater(6)It is connected, storage heater(6)With rotary kiln type gasification furnace(3)In steam Nozzle(31)It is connected, converter cooling residual heat boiler(2)In caused steam by storage heater(6)Rotary kiln type gas is delivered to after pressure regulation Change stove(3)In steam jet(31), and by steam jet(31)It is injected to rotary kiln type gasification furnace(3)In.
- 4. the system of the domestic garbage burning electricity generation that gasified using coal gas of converter according to claim 1 or 3, its feature are existed In, in addition to deaerating device(7), deaerating device(7)Respectively with converter cooling residual heat boiler(2)In drum and two Secondary chamber boiler(4)In drum be connected;Converter cooling residual heat boiler(2)In drum and storage heater(6)It is connected, storage heater(6) With deaerating device(7)It is connected, converter cooling residual heat boiler(2)In caused steam by storage heater(6)Can be defeated after pressure regulation Deliver to deaerating device(7)In, to be used as deoxygenation thermal source.
- 5. the system of the domestic garbage burning electricity generation according to claim 1 that gasified using coal gas of converter, it is characterised in that return Kiln type gasification furnace(3)Tilting furnace installation, inboard wall of furnace body Bu Ge have heat-storing material(33), the gas vent of body of heater afterbody sets It is equipped with cyclone separator(34), cyclone separator(34)Top exit and secondary chamber's boiler(4)Be connected, outlet at bottom with Deslagging device(8)It is connected.
- 6. the system of the domestic garbage burning electricity generation according to claim 5 that gasified using coal gas of converter, it is characterised in that return Kiln type gasification furnace(3)With life refuse feeding device(9)It is connected, life refuse feeding device(9)Delay storehouse charging system for three-level System.
- 7. the system of the domestic garbage burning electricity generation according to claim 1 that gasified using coal gas of converter, it is characterised in that two Secondary chamber boiler(4)Exhanst gas outlet be connected with smoke processing system, smoke processing system include be sequentially connected with gas cleaning dress Put(10), dust arrester(11), frequency converting induced draft fan(12)And chimney(13).
- 8. a kind of technique for the domestic garbage burning electricity generation that gasified using coal gas of converter, it is characterised in that comprise the following steps:Coal gas of converter caused by converter enters converter cooling residual heat boiler(2)It is middle to carry out preliminary heat recovery, to produce steam;Coal gas of converter is by converter cooling residual heat boiler(2)Into rotary kiln type gasification furnace(3), with rotary kiln type gasification furnace(3) Hot environment is internally formed, the house refuse of pretreatment is through life refuse feeding device(9)It is sent into rotary kiln type gasification furnace(3), And in rotary kiln type gasification furnace(3)Internal hot environment issues heat decomposition reaction, with generation gasification gas and carbon containing waste residue;Rotary kiln type gasification furnace(3)In it is caused gasification gas and coal gas of converter enter secondary chamber's boiler(4), and in secondary chamber's boiler (4)Middle combustion heat release, to produce high-temperature steam;Secondary chamber's boiler(4)In caused high-temperature steam be delivered to TRT(5)In, to be generated electricity,Wherein, the converter cooling residual heat boiler(2)In caused steam rotary kiln type gasification furnace is sent into after pressure regulation(3)In, Steam can be in rotary kiln type gasification furnace with carbon containing waste residue caused by house refuse thermal decomposition(3)Middle generation water gas reaction, with Produce gasification gas and rubbish waste residue.
- 9. the technique of the domestic garbage burning electricity generation according to claim 8 that gasified using coal gas of converter, it is characterised in that turn Stove cooling residual heat boiler(2)In caused steam after pressure regulation by steam jet(31)It is sent into rotary kiln type gasification furnace(3)In, steam Vapour nozzle(31)The steam of ejection can be in rotary kiln type gasification furnace with carbon containing waste residue caused by house refuse thermal decomposition(3)Middle hair Raw water gas reaction, to produce gasification gas and rubbish waste residue.
- 10. the technique of the domestic garbage burning electricity generation according to claim 8 that gasified using coal gas of converter, it is characterised in that Converter cooling residual heat boiler(2)In caused steam deaerating device is delivered to after pressure regulation(7)In, to be used as deoxygenation heat Source, deaerating device(7)Respectively with converter cooling residual heat boiler(2)In drum and secondary chamber's boiler(4)In drum phase Even.
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