CN107384484A - A kind of refuse gasification coupling coal fired power plant TRT and electrification technique - Google Patents
A kind of refuse gasification coupling coal fired power plant TRT and electrification technique Download PDFInfo
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- CN107384484A CN107384484A CN201710818888.3A CN201710818888A CN107384484A CN 107384484 A CN107384484 A CN 107384484A CN 201710818888 A CN201710818888 A CN 201710818888A CN 107384484 A CN107384484 A CN 107384484A
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- Prior art keywords
- rubbish
- gas
- coal
- melter
- gasification
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- 238000002309 gasification Methods 0.000 title claims abstract description 81
- 239000003245 coal Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000008878 coupling Effects 0.000 title claims abstract description 17
- 238000010168 coupling process Methods 0.000 title claims abstract description 17
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 17
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 133
- 239000002893 slag Substances 0.000 claims abstract description 27
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000003546 flue gas Substances 0.000 claims abstract description 20
- 239000000567 combustion gas Substances 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 238000006298 dechlorination reaction Methods 0.000 claims abstract description 13
- 230000005611 electricity Effects 0.000 claims abstract description 10
- 239000002737 fuel gas Substances 0.000 claims abstract description 10
- 238000002844 melting Methods 0.000 claims abstract description 8
- 230000008018 melting Effects 0.000 claims abstract description 8
- 238000000197 pyrolysis Methods 0.000 claims abstract description 7
- 238000010791 quenching Methods 0.000 claims abstract description 6
- 238000002485 combustion reaction Methods 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims description 44
- 239000007787 solid Substances 0.000 claims description 38
- 239000007789 gas Substances 0.000 claims description 33
- 238000007599 discharging Methods 0.000 claims description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000001125 extrusion Methods 0.000 claims description 21
- 230000035939 shock Effects 0.000 claims description 21
- 230000018044 dehydration Effects 0.000 claims description 19
- 238000006297 dehydration reaction Methods 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 18
- 238000012545 processing Methods 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 7
- 235000019738 Limestone Nutrition 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 3
- 239000000292 calcium oxide Substances 0.000 claims description 3
- 239000000460 chlorine Substances 0.000 claims description 3
- 229910052801 chlorine Inorganic materials 0.000 claims description 3
- 239000010459 dolomite Substances 0.000 claims description 3
- 229910000514 dolomite Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000006028 limestone Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 239000000498 cooling water Substances 0.000 claims description 2
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 abstract description 6
- 239000004035 construction material Substances 0.000 abstract description 5
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 2
- 239000004566 building material Substances 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 239000002956 ash Substances 0.000 description 18
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 238000004056 waste incineration Methods 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000009264 composting Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
- C10J3/30—Fuel charging devices
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/82—Gas withdrawal means
- C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0903—Feed preparation
- C10J2300/0906—Physical processes, e.g. shredding, comminuting, chopping, sorting
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0903—Feed preparation
- C10J2300/0909—Drying
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/0946—Waste, e.g. MSW, tires, glass, tar sand, peat, paper, lignite, oil shale
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0983—Additives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
- C10J2300/1606—Combustion processes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1625—Integration of gasification processes with another plant or parts within the plant with solids treatment
- C10J2300/1628—Ash post-treatment
- C10J2300/1634—Ash vitrification
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1671—Integration of gasification processes with another plant or parts within the plant with the production of electricity
- C10J2300/1675—Integration of gasification processes with another plant or parts within the plant with the production of electricity making use of a steam turbine
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
- C10J2300/1807—Recycle loops, e.g. gas, solids, heating medium, water
-
- 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
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
Abstract
The invention discloses a kind of refuse gasification coupling coal fired power plant TRT and electrification technique, TRT includes rubbish preliminary treatment unit, refuse pyrolysis gasification unit, garbage flying ash melt element, coal fired power plant generator unit；Electrification technique produces high-temperature fuel gas using circle fluidized-bed gasification furnace pyrolytic gasification rubbish and is sent into coal-fired boiler combustion coupled electricity-generation, and garbage flying ash melts in melter, and building materials are used as after Quench or are directly filled.The present invention couples coal fired power plant by the way that refuse pyrolysis is gasified into high-temperature flue gas caused by obtained combustion gas and slag and generated electricity, and generating efficiency is high；The present invention in gasification furnace by adding dechlorination fluxing agent dioxin emission amount well below international standard；Quench forms glassy state slag after the garbage flying ash melting of the present invention, can be used as construction material or directly buries, and floor space is small, and heavy metal free leaches, safe and environment-friendly.
Description
Technical field
The invention belongs to garbage utilization technical field, the dress in particular it relates to which a kind of refuse gasification coupling coal fired power plant generates electricity
Put and electrification technique.
Background technology
In recent years, with China's expanding economy, the raising of living standards of the people, the quickening of Development of China's Urbanization, city rubbish
The discharge capacity of rubbish increases sharply, it is contemplated that is up to 2.1 hundred million tons to the municipal refuse annual production of the year two thousand twenty China.At present, garbage harmless
Changing processing mode mainly has：Landfill method, composting process, burning method, recycling treatment.Landfill method and composting process are because there is efficiency
Low, the shortcomings of underground water pollution is serious, floor space is big, governs its long term growth；Because domestic refuse classification infrastructure is thin
It is weak, citizen's refuse classification idea is thin, recycling garbage disposal is shouldered heavy responsibilities, and is unable to popularization and application at present；Burning method is due to it
The reason such as rubbish volume reduction 70-90%, garbage treatment efficiency height is increasingly subject to pay attention to and promoted after efficient energy utilization, burning.
But conventional waste incineration and generating electricity there is：Qi bodies Zhong bioxin and amount of nitrogen oxides caused by waste incineration
Caused slag utilization rate is low after high, burning, can only largely fill, and with Leaching of Heavy Metals, waste incineration and generating electricity efficiency
It is low, the problems such as equipment investment is high.So exploitation it is a kind of can promote maximize, be efficient, environmental protection refuse disposal installation and
Technique has far-reaching significance.
The content of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of refuse gasification coupling coal fired power plant hair
Electric installation and electrification technique.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of refuse gasification couples coal fired power plant TRT, including rubbish preliminary treatment unit, refuse pyrolysis gasification list
Member, garbage flying ash melt element, coal fired power plant generator unit；The rubbish preliminary treatment unit includes garbage sorting device, squeezed
Press-dehydrating prilling granulator, drying unit, drying air cooling device；The refuse pyrolysis gasification unit includes blower fan, garbage feeding
Device, bed feed arrangement, gasification furnace, one-level gas-solid separating device, material-returning device, two level gas-solid separating device；The rubbish
Fusing fly ash unit includes garbage flying ash high temperature conveying device, melter, shock chamber, slag-draining device, slag bath；The coal fired power plant
Generator unit includes coal-burning boiler, steam electric power generator, flue gas processing device；
The discharging opening of the garbage sorting device connects with the feeding mouth of rubbish extrusion dehydration prilling granulator, and the rubbish squeezes
The delivery port of press-dehydrating prilling granulator is connected with the water inlet of shock chamber, and the discharging opening of the refuse disposal installation is dried by rubbish
Equipment for drying is connected to the charging aperture of rubbish feeding device；The drying gas gas outlet of the rubbish drying unit is connected to drying air cooling
But the air inlet of device, the steam gas outlet of the refuse disposal installation are connected to the water inlet of melter；The drying air cooling
But the delivery port of device connects with the water inlet of shock chamber, and the fuel gas gas outlet of the drying air cooling device is connected to combustion
The air inlet of coal burning boiler；
The air outlet of the gasification furnace connects with blower fan, and the garbage inlet of the gasification furnace is connected to rubbish feeding device
Discharging opening, the bed charging aperture of the gasification furnace connects with the discharging opening of bed feed arrangement, the discharging opening of the gasification furnace
Connected with the charging aperture of one-level gas-solid separating device；The solid-state isolate discharging opening of the one-level gas-solid separating device passes through returning charge
Device is connected to the charge door of gasification furnace, and the gaseous state isolate discharging opening of the one-level gas-solid separating device is connected to two level gas-solid
The charging aperture of separator；The gas outlet of the two level gas-solid separating device is connected to air inlet and the melter of coal-burning boiler
Air inlet, the discharging opening of the two level gas-solid separating device are connected to the charging aperture of garbage flying ash high temperature conveying device；The rubbish
The discharging opening of rubbish flying dust high temperature conveying device is connected to the charging aperture of melter；The gas outlet of the melter is connected to rubbish baking
First air inlet of equipment for drying, the melter bottom are provided with shock chamber, and the shock chamber connects slag by batch equipment (18)
Pond；
The discharging opening of the coal-burning boiler is connected to the charge door of melter, the flue gas gas outlet connection of the coal-burning boiler
In the air inlet of flue gas processing device, the steam gas outlet of the coal-burning boiler is connected to the air inlet of steam electric power generator, institute
The gas outlet for stating steam electric power generator is connected to the second air inlet of rubbish drying unit.
Further, the melter is water wall structure.
Further, the coal-burning boiler is provided with coal feeding pipe road and air intake conduit.
A kind of refuse gasification couples coal fired power plant electrification technique, comprises the following steps：
(1) added after the sorted device of rubbish, extrusion dehydration prilling granulator, drying unit processing by rubbish feeding device
Gasification furnace；Extrusion water caused by rubbish extrusion dehydration prilling granulator and the cooling water of rubbish drying air cooling device generation are sent to sharp
Cold house；
(2) bed, gasifying agent, dechlorination fluxing agent add gasification furnace by bed feed arrangement；
(3) rubbish pyrolytic gasification, dechlorination fluxing agent under high temperature bed and gasifying agent effect reacts with chlorine in rubbish, generation
Combustion gas and garbage flying ash；The garbage flying ash that gasification furnace is carried out with combustion gas is filled after the separation of one-level gas-solid separating device by returning charge
Put feeding gasification furnace to continue to react, the flying dust not separated by one-level gas-solid separating device is then collected by two level gas-solid separating device；
The pyrogenous origin combustion gas part of refuse gasification goes to coal-burning boiler, and a part goes to melter；
(4) garbage flying ash that two level gas-solid separating device is collected into is sent into melter by high temperature conveying device, is fired in high temperature
Gas and from coal-burning boiler high-temperature air burning heating under will be melt into liquid；The high-temperature flue gas of melter's generation is sent to fire coal
Boiler, caused steam go to rubbish drying unit；
(5) molten slag from melter drops in slag-draining device in shock chamber's Quench into glassy state clinker, then
Interval drains into slag bath；Partial-chilled room chilled water extracts from slag bath；
(6) combustion gas from gasification furnace and the high-temperature flue gas from melter are admitted to coal-burning boiler, and coal-fired coupling combustion
Burn and produce steam, promote steam electric power generator to generate electricity, some vapor is separately extracted from steam electric power generator and is sent to rubbish drying dress
Put.
Moisture content is 0-80% before the garbage disposal, and moisture content is 0-35%, particle diameter 0-10cm after processing.
The bed is abrasion resistant particles, particle diameter 1.0-5.0mm；The dechlorination fluxing agent is lime stone, dolomite and oxygen
Change calcium particle, particle diameter 0.1-2mm, the dechlorination fluxing agent and rubbish mass ratio are 0.01-0.5：1.
Gasification furnace reaction temperature control fluidizing velocity in 500-900 DEG C, gasification furnace stove is 0.5-5m/s, gasification furnace
Gas outlet temperature is 450-850 DEG C.
At 850-1350 DEG C, it is 0.3-1.5MPa that melter, which produces steam pressure, for melter's melting temperature control；Institute
It is 150-300 DEG C to state the vapor (steam) temperature extracted in steam electric power generator.
Beneficial effects of the present invention：
1) present invention couples coal fired power plant by the way that refuse pyrolysis is gasified into high-temperature flue gas caused by obtained combustion gas and slag
Generate electricity, make full use of the existing generating equipment of coal fired power plant, electrical parameter occurred frequently and high effective flue gas processing system, generating efficiency is high, cigarette
Gas discharge environmental protection, system equipment investment are low；
2) present invention is low by adding dechlorination fluxing agent dioxin emission amount in gasification furnace, and discharge capacity≤
0.01ng/Nm3, well below international standard 0.1ng/Nm3, meanwhile, reduce garbage flying ash melting temperature；
3) garbage flying ash and dechlorination fluxing agent uniformly mix and keep the condition of high temperature in gasification furnace of the invention, utilize high temperature
Combustion gas and high temperature air provide heat for melter, and energy expenditure is low, and the energy of fusing fly ash can be met by introducing a small amount of combustion gas
Demand；Quench forms glassy state slag after garbage flying ash melting, can be used as construction material or directly buries, and floor space is small, no weight
Metal leachability, it is safe and environment-friendly；
4) rubbish is extruded extrusion water by the present invention and rubbish drying air cooling condensate is used as slag chilled water, high through molten state slag
Its organic components content is greatly reduced after temperature processing, then filtered through slag bath, settled post-processing difficulty and substantially reduce.
Brief description of the drawings
For the ease of it will be appreciated by those skilled in the art that the present invention is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation that refuse gasification of the present invention couples coal fired power plants.
Description of reference numerals：1st, garbage sorting device；2nd, rubbish extrusion dehydration prilling granulator；3rd, air cooling device is dried；
4th, rubbish drying unit；5th, blower fan；6th, rubbish feeding device；7th, bed feed arrangement；8th, gasification furnace；9th, one-level gas solid separation fills
Put；10th, material-returning device；11st, two level gas-solid separating device；12nd, coal-burning boiler；13rd, steam electric power generator；14th, fume treatment fills
Put.15th, garbage flying ash high temperature conveying device；16th, melter；17th, shock chamber；18th, batch equipment；19th, slag bath.
Embodiment
Technical scheme is clearly and completely described below in conjunction with embodiment, it is clear that described reality
It is only part of the embodiment of the present invention to apply example, rather than whole embodiments.It is general based on the embodiment in the present invention, this area
All other embodiment that logical technical staff is obtained under the premise of creative work is not made, belong to what the present invention protected
Scope.
A kind of refuse gasification couples coal fired power plant TRT, as shown in figure 1, including rubbish preliminary treatment unit, rubbish
Pyrolytic gasification unit, garbage flying ash melt element, coal fired power plant generator unit；Rubbish preliminary treatment unit fills including garbage sorting
Put 1, extrusion dehydration prilling granulator 2, drying unit 4, drying air cooling device 3；Refuse pyrolysis gasification unit includes blower fan 5, rubbish
Rubbish feed arrangement 6, bed feed arrangement 7, gasification furnace 8, one-level gas-solid separating device 9, material-returning device 10, two level gas solid separation dress
Put 11；Garbage flying ash melt element include garbage flying ash high temperature conveying device 15, melter 16, shock chamber 17, slag-draining device 18,
Slag bath 19；Coal fired power plant generator unit includes coal-burning boiler 12, steam electric power generator 13, flue gas processing device 14；
The discharging opening of garbage sorting device 1 connects with the feeding mouth of rubbish extrusion dehydration prilling granulator 2, rubbish extrusion dehydration
The delivery port of prilling granulator 2 connects with the water inlet of shock chamber 17, and the discharging opening of refuse disposal installation 2 passes through rubbish drying unit
4 are connected to the charging aperture of rubbish feeding device 6；The drying gas gas outlet of rubbish drying unit 4 is connected to drying air cooling device 3
Air inlet, the steam gas outlet of refuse disposal installation 4 is connected to the water inlet of melter 16；Drying air cooling device 3 goes out
The mouth of a river connects with the water inlet of shock chamber 17, and the fuel gas gas outlet of drying air cooling device 3 is connected to coal-burning boiler 12
Air inlet；
The air outlet of gasification furnace 8 connects with blower fan 5, and the garbage inlet of gasification furnace 8 is connected to going out for rubbish feeding device 6
Material mouth, the bed charging aperture of gasification furnace 8 connect with the discharging opening of bed feed arrangement 7, the discharging opening and one-level of the gasification furnace 8
The charging aperture connection of gas-solid separating device 9；The solid-state isolate discharging opening of one-level gas-solid separating device 9 is connected by material-returning device 10
The charge door of gasification furnace 8 is connected to, the gaseous state isolate discharging opening of one-level gas-solid separating device 9 is connected to two level gas-solid separating device
11 charging aperture；The gas outlet of two level gas-solid separating device 11 is connected to the air inlet of coal-burning boiler 12 and the air inlet of melter 16
Mouthful, the discharging opening of two level gas-solid separating device 11 is connected to the charging aperture of garbage flying ash high temperature conveying device 15；Garbage flying ash is high
The discharging opening of warm conveying device 15 is connected to the charging aperture of melter 16；Melter 16 is water wall structure, and melter 16 goes out
Gas port is connected to the first air inlet of rubbish drying unit 4, and the bottom of melter 16 is provided with shock chamber 17, and the shock chamber 17 passes through
Batch equipment 18 connects slag bath 19；
Coal-burning boiler 12 is additionally provided with coal feeding pipe road and air intake conduit, and the discharging opening of coal-burning boiler 12 is connected to melter
16 charge door, the flue gas gas outlet of coal-burning boiler 12 are connected to the air inlet of flue gas processing device 14, the steaming of coal-burning boiler 12
Vapour gas outlet is connected to the air inlet of steam electric power generator 13, and the gas outlet of steam electric power generator 13 is connected to rubbish drying unit
4 the second air inlet.
Garbage sorting equipment can be selected in garbage sorting device 1, it is possible to achieve the Fast Classification of rubbish；Extrusion dehydration is granulated dress
Put 2 and extrusion dehydration comminutor can be selected, rubbish is carried out
A kind of refuse gasification couples coal fired power plant electrification technique, comprises the following steps：
Pass through rubbish feeding device 6 after the sorted device 1 of S1, rubbish, extrusion dehydration prilling granulator 2, the processing of drying unit 4
Add gasification furnace 8；The cooling that water and rubbish drying air cooling device 3 generate is extruded caused by rubbish extrusion dehydration prilling granulator 2
Water is sent to shock chamber 17；
S2, bed, dechlorination fluxing agent add gasification furnace 8 by bed feed arrangement 7；
S3, rubbish pyrolytic gasification, dechlorination fluxing agent under high temperature bed and gasifying agent effect react with chlorine in rubbish, generation
Combustion gas and garbage flying ash；The garbage flying ash that gasification furnace 8 is carried out with combustion gas passes through returning charge after the separation of one-level gas-solid separating device 9
Device 10 is sent into gasification furnace 8 and continues to react, and the flying dust not separated by one-level gas-solid separating device 9 is then by two level gas-solid separating device
11 collect；The pyrogenous origin combustion gas part of refuse gasification goes to coal-burning boiler 12, and a part goes to melter 16；
The garbage flying ash that S4, two level gas-solid separating device 11 are collected into is sent into melter 16 by high temperature conveying device 15,
High-temperature fuel gas and from coal-burning boiler 12 high-temperature air burning heating under will be melt into liquid；The high temperature cigarette that melter 16 generates
Pneumatic transmission goes to rubbish drying unit 4 toward coal-burning boiler 12, caused steam；
S5, the molten slag from melter 16 drop in slag-draining device 18 in the Quench of shock chamber 17 into glassy state clinker
It is interior, then intermittently drain into slag bath 19；Partial-chilled room chilled water extracts from slag bath 19；
S6, the combustion gas from gasification furnace 8 and the high-temperature flue gas from melter 16 are admitted to coal-burning boiler 12, and coal-fired coupling
Combination burning produces steam, promotes steam electric power generator 13 to generate electricity, and some vapor is separately extracted from steam electric power generator is sent to rubbish
Drying unit 4.
Embodiment 1
Plastic 50%, wood chip, paper 5%, biology and garbage 45% after the sorted device sorting of rubbish, it is aqueous
Rate 35%, moisture content is reduced to 20% after extrusion dehydration is granulated and is dried, and granularity≤3cm, 1.0mm river sands are added by bed hopper
Enter gasification furnace, 0.8mm dolomites press dolomite：Rubbish=0.3：1 (kg/kg) is added, and gasifier operation temperature is at 650 DEG C, control
Fluidizing velocity 3.5m/s in stove processed, for melting room temperature at 950 DEG C, melter produces steam pressure two Evil in 0.75MPa, combustion gas
English content is 0.008ng/Nm3.The high-temperature fuel gas of gasification furnace generation and the high-temperature flue gas of melter's generation are sent to coal-burning boiler coupling
To close and generate electricity, the vapor (steam) temperature extracted from steam electric power generator is 250 DEG C, boiler smoke Zhong content of dioxin≤0.008ng/Nm3,
Cold slag is sent to construction material processing factory or landfill.
Embodiment 2
Plastic 70%, wood chip, paper 5%, biology and garbage 25% after the sorted device sorting of rubbish, it is aqueous
Rate 20%, moisture content is reduced to 9% after extrusion dehydration is granulated and is dried, and granularity≤3cm, 0.9mm river sands are added by bed hopper
Enter gasification furnace, 0.6mm lime stones press lime stone：Rubbish=0.6：1 (kg/kg) is added, and gasifier operation temperature is at 850 DEG C, control
Fluidizing velocity 3.0m/s in stove processed, for melting room temperature at 900 DEG C, melter produces steam pressure two Evil in 0.5MPa, combustion gas
English content is 0.01ng/Nm3.The high-temperature fuel gas of gasification furnace generation and the high-temperature flue gas of melter's generation are sent to coal-burning boiler coupling
Generate electricity, the vapor (steam) temperature extracted from steam electric power generator is 200 DEG C, and boiler smoke Zhong content of dioxin≤0.008ng/Nm3 is cold
Slag is sent to construction material processing factory or landfill.
Embodiment 3
Plastic 25%, wood chip, paper 15%, biology and garbage 60% after the sorted device sorting of rubbish, contain
Water rate 50%, moisture content is reduced to 24% after extrusion dehydration is granulated and is dried, and granularity≤3cm, 1.5mm river sands are by bed hopper
Gasification furnace is added, 1.0mm calcium oxide particles press calcium oxide particle：Rubbish=0.2：1 (kg/kg) is added, gasifier operation temperature
At 600 DEG C, fluidizing velocity 3.0m/s in stove is controlled, for melting room temperature at 1150 DEG C, melter produces steam pressure in 1.0MPa,
Combustion gas Zhong content of dioxin is 0.007ng/Nm3.The high-temperature fuel gas of gasification furnace generation and the high-temperature flue gas of melter's generation are sent to
Coal-burning boiler coupled electricity-generation, the vapor (steam) temperature extracted from steam electric power generator are 300 DEG C, boiler smoke Zhong content of dioxin≤
0.005ng/Nm3, cold slag are sent to construction material processing factory or landfill.
Present invention disclosed above preferred embodiment is only intended to help and illustrates the present invention.Preferred embodiment is not detailed
All details are described, it is only described embodiment also not limit the invention.Obviously, according to the content of this specification,
It can make many modifications and variations.This specification is chosen and specifically describes these embodiments, is to preferably explain the present invention
Principle and practical application so that skilled artisan can be best understood by and utilize the present invention.The present invention is only
Limited by claims and its four corner and equivalent.
Claims (8)
1. a kind of refuse gasification couples coal fired power plant TRT, it is characterised in that including rubbish preliminary treatment unit, rubbish heat
Solve gasification unit, garbage flying ash melt element, coal fired power plant generator unit；The rubbish preliminary treatment unit includes garbage sorting
Device (1), extrusion dehydration prilling granulator (2), drying unit (4), drying air cooling device (3)；The refuse pyrolysis gasification is single
Member include blower fan (5), rubbish feeding device (6), bed feed arrangement (7), gasification furnace (8), one-level gas-solid separating device (9),
Material-returning device (10), two level gas-solid separating device (11)；The garbage flying ash melt element includes garbage flying ash high temperature conveying dress
Put (15), melter (16), shock chamber (17), slag-draining device (18), slag bath (19)；The coal fired power plant generator unit includes combustion
Coal burning boiler (12), steam electric power generator (13), flue gas processing device (14)；
The discharging opening of the garbage sorting device (1) connects with the feeding mouth of rubbish extrusion dehydration prilling granulator (2), the rubbish
The delivery port of extrusion dehydration prilling granulator (2) connects with the water inlet of shock chamber (17), the discharging of the refuse disposal installation (2)
Mouth is connected to the charging aperture of rubbish feeding device (6) by rubbish drying unit (4)；The drying of the rubbish drying unit (4)
Gas gas outlet is connected to the air inlet of drying air cooling device (3), and the steam gas outlet of the refuse disposal installation (4) is connected to
The water inlet of melter (16)；The delivery port of the drying air cooling device (3) connects with the water inlet of shock chamber (17), described
The fuel gas gas outlet of drying air cooling device (3) is connected to the air inlet of coal-burning boiler (12)；
The air outlet of the gasification furnace (8) connects with blower fan (5), and the garbage inlet of the gasification furnace (8) is connected to rubbish and entered
Expect the discharging opening of device (6), the bed charging aperture of the gasification furnace (8) connects with the discharging opening of bed feed arrangement (7), described
The discharging opening of gasification furnace (8) connects with the charging aperture of one-level gas-solid separating device (9)；The one-level gas-solid separating device (9)
Solid-state isolate discharging opening is connected to the charge door of gasification furnace (8), the one-level gas-solid separating device by material-returning device (10)
(9) gaseous state isolate discharging opening is connected to the charging aperture of two level gas-solid separating device (11)；The two level gas-solid separating device
(11) gas outlet is connected to the air inlet of coal-burning boiler (12) and the air inlet of melter (16), the two level gas solid separation dress
The discharging opening for putting (11) is connected to the charging aperture of garbage flying ash high temperature conveying device (15)；The garbage flying ash high temperature conveying device
(15) discharging opening is connected to the charging aperture of melter (16)；The gas outlet of the melter (16) is connected to rubbish drying unit
(4) the first air inlet, melter (16) bottom are provided with shock chamber (17), and the shock chamber (17) passes through batch equipment
(18) slag bath (19) is connected；
The discharging opening of the coal-burning boiler (12) is connected to the charge door of melter (16), and the flue gas of the coal-burning boiler (12) goes out
Gas port is connected to the air inlet of flue gas processing device (14), and the steam gas outlet of the coal-burning boiler (12) is connected to steam-electric power
The air inlet of device (13), the gas outlet of the steam electric power generator (13) are connected to the second air inlet of rubbish drying unit (4)
Mouthful.
A kind of 2. refuse gasification coupling coal fired power plant TRT as claimed in claim 1, it is characterised in that the melter
(16) it is water wall structure.
A kind of 3. refuse gasification coupling coal fired power plant TRT as claimed in claim 1, it is characterised in that the coal-fired pot
Stove (12) is additionally provided with coal feeding pipe road and air intake conduit.
4. a kind of refuse gasification coupling coal fired power plant electrification technique as claimed in claim 1, it is characterised in that including following step
Suddenly：
Filled after the sorted device of S1, rubbish (1), extrusion dehydration prilling granulator (2), drying unit (4) processing by garbage feeding
Put (6) and add gasification furnace (8)；Water and rubbish drying air cooling device (3) are extruded caused by rubbish extrusion dehydration prilling granulator (2)
The cooling water of generation is sent to shock chamber (17)；
S2, bed, gasifying agent, dechlorination fluxing agent add gasification furnace (8) by bed feed arrangement (7)；
S3, rubbish pyrolytic gasification, dechlorination fluxing agent under high temperature bed and gasifying agent effect react with chlorine in rubbish, generate combustion gas
And garbage flying ash；The garbage flying ash that gasification furnace (8) is carried out with combustion gas passes through returning charge after one-level gas-solid separating device (9) separation
Device (10) is sent into gasification furnace (8) and continues to react, not by the flying dust of one-level gas-solid separating device (9) separation then by two level gas-solid point
Collected from device (11)；The pyrogenous origin combustion gas part of refuse gasification goes to coal-burning boiler (12), and a part goes to melter
(16)；
The garbage flying ash that S4, two level gas-solid separating device (11) are collected into is sent into melter (16) by high temperature conveying device (15),
High-temperature fuel gas and from coal-burning boiler (12) high-temperature air burning heating under will be melt into liquid；Melter (16) generation
High-temperature flue gas is sent to coal-burning boiler (12), and caused steam goes to rubbish drying unit (4)；
S5, the molten slag from melter (16) drop in slag-draining device (18) in shock chamber's (17) Quench into glassy state clinker
It is interior, then intermittently drain into slag bath (19)；Partial-chilled room chilled water extracts from slag bath (19)；
S6, the combustion gas from gasification furnace (8) and the high-temperature flue gas from melter (16) are admitted to coal-burning boiler (12), and coal-fired
Coupling combustion produces steam, promotes steam electric power generator (13) to generate electricity, and some vapor is separately extracted from steam electric power generator is sent to
Rubbish drying unit (4).
5. a kind of refuse gasification coupling coal fired power plant electrification technique as claimed in claim 4, it is characterised in that at the rubbish
Moisture content is 0-80% before reason, and moisture content is 0-35%, particle diameter 0-10cm after processing.
6. a kind of refuse gasification coupling coal fired power plant electrification technique as claimed in claim 4, it is characterised in that the bed is
Abrasion resistant particles, particle diameter 1.0-5.0mm；The dechlorination fluxing agent is lime stone, dolomite and calcium oxide particle, particle diameter 0.1-
2mm；The dechlorination fluxing agent and rubbish mass ratio are 0.01-0.5：1.
A kind of 7. refuse gasification coupling coal fired power plant electrification technique as claimed in claim 4, it is characterised in that the gasification furnace
Reaction temperature control fluidizing velocity in 500-900 DEG C, gasification furnace stove is 0.5-5m/s, and fuel gas of gasifying furnace outlet temperature is 450-
850℃。
A kind of 8. refuse gasification coupling coal fired power plant electrification technique as claimed in claim 4, it is characterised in that the melter
At 850-1350 DEG C, it is 0.3-1.5MPa that melter, which produces steam pressure, for melting temperature control；Taken out in the steam electric power generator
The vapor (steam) temperature taken is 150-300 DEG C.
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| CN109985893A (en) * | 2019-04-19 | 2019-07-09 | 国电长源湖北生物质气化科技有限公司 | Gasification of biomass fires the capacity reducing fixing the handles device and technique of incineration firing flying dust again |
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| CN113195685A (en) * | 2018-10-10 | 2021-07-30 | 西亚塔控股私人有限公司 | Process for treating carbonaceous material and apparatus therefor |
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