CN110257107A - A kind of biomass pyrogenation gasification system coupling pulverized-coal fired boiler power station electricity-generating method - Google Patents
A kind of biomass pyrogenation gasification system coupling pulverized-coal fired boiler power station electricity-generating method Download PDFInfo
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- CN110257107A CN110257107A CN201910639504.0A CN201910639504A CN110257107A CN 110257107 A CN110257107 A CN 110257107A CN 201910639504 A CN201910639504 A CN 201910639504A CN 110257107 A CN110257107 A CN 110257107A
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- 238000002309 gasification Methods 0.000 title claims abstract description 97
- 239000002028 Biomass Substances 0.000 title claims abstract description 89
- 238000000034 method Methods 0.000 title claims abstract description 40
- 239000003245 coal Substances 0.000 title claims abstract description 36
- 230000008878 coupling Effects 0.000 title claims abstract description 15
- 238000010168 coupling process Methods 0.000 title claims abstract description 15
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 15
- 239000002737 fuel gas Substances 0.000 claims abstract description 61
- 238000000197 pyrolysis Methods 0.000 claims abstract description 50
- 238000010248 power generation Methods 0.000 claims abstract description 39
- 239000007789 gas Substances 0.000 claims abstract description 29
- 239000010802 sludge Substances 0.000 claims abstract description 28
- 238000001035 drying Methods 0.000 claims abstract description 23
- 238000002485 combustion reaction Methods 0.000 claims abstract description 22
- 238000011282 treatment Methods 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000010865 sewage Substances 0.000 claims abstract description 11
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 230000005611 electricity Effects 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 238000003860 storage Methods 0.000 claims description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 239000000446 fuel Substances 0.000 claims description 12
- 239000000567 combustion gas Substances 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 230000002457 bidirectional effect Effects 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 4
- 238000002386 leaching Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 239000002817 coal dust Substances 0.000 abstract description 6
- 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 description 20
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 13
- 239000003546 flue gas Substances 0.000 description 13
- 230000008569 process Effects 0.000 description 13
- 239000010813 municipal solid waste Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 5
- 239000000460 chlorine Substances 0.000 description 5
- 229910052801 chlorine Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 210000004209 hair Anatomy 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010015866 Extravasation Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000002154 agricultural waste Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 230000036251 extravasation Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000004056 waste incineration 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
- C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
- C10J3/60—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
- 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
- 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
- C10J2300/0916—Biomass
- C10J2300/092—Wood, cellulose
-
- 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
- C10J2300/0916—Biomass
- C10J2300/0923—Sludge, e.g. from water treatment plant
-
- 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
- C10J2300/16—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
- C10J2300/1671—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
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- 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]
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention belongs to Biomass Energy Utilization technical fields, disclose a kind of biomass pyrogenation gasification system coupling pulverized-coal fired boiler power station electricity-generating method, pretreatment unit, for being crushed to biomass, drying pretreatment；Pyrolysis gasification furnace unit, for being fuel gas by pretreated biomass pyrogenation gasification；Measurement control unit is conveyed to the fuel gas in pulverized-coal fired boiler power station for controlling and measuring；Gas station unit is stored, is used for storing the fuel gas of pyrolysis gasification furnace production or releasing fuel gas for coal dust boiler electricity station.Biomass is converted into fuel gas by pyrolysis gasification system, is transported to pulverized-coal fired boiler power station combustion power generation, realizes using energy source.The features such as present invention investment is small, generating efficiency is high, more environmentally friendly, O&M expense is low, investment time is short, the pulverized-coal fired boiler power station biomass energies such as house refuse, agricultural scrap residues, sewage treatment and water sludge nearby can be effectively dissolved, low cost utilizes biomass energy.
Description
Technical field
The invention belongs to Biomass Energy Utilization technical fields, and in particular to a kind of biomass pyrogenation gasification system coupling coal
Powder boiler power station electricity-generating method.
Background technique
Currently, the immediate prior art: the biomass currently used for power generation typically refers to the agricultural such as house refuse, stalk
The substances such as the sludge that scrap residues, sewage treatment and water body generate.These biomass bring very big environmental problem to society:
Stalk field is directly burnt, garbage sludge besieged city.Especially house refuse, stench, land occupation, polluted underground water source, situation are more acute.
The mainstream solution of biomass at present is exactly biomass power generation by waste combustion.Power generation by waste combustion technical process: biology
Matter fuel is collected into factory, and after through hopper and conveying device be sent into incinerator.House refuse, sewage treatment plant and water body in this way are dirty
The biomass energies such as mud, it is also necessary to be stored in storage hole and prevent leachate extravasation pollution.Incinerator is usually chain furnace, biology
The siege that matter fuel is constituted in incinerator by dryer section, burning zone and after-flame section, is effectively performed incineration, stays after burning
Under clinker be discharged through siege end.Clinker is arranged to store to lime-ash from wet type deslagging device and be cheated, and is then grabbed and is filled by lime-ash crane
Vehicle outward transport, is filled or is comprehensively utilized.Incinerator comes out high-temperature flue gas and generates high temperature and high pressure steam through boiler, pushes steamer hair
Electric unit generation completes biomass power generation technical process.
Existing biomass power generation technical process has the following problems:
(1) handle rubbish, sludge power generation by waste combustion project there are dioxin contaminations, the biology of fuel is done with rubbish, sludge
Matter power generation project, due to technologic, how much the flue gas of discharge can all contain some dioxin.This is but also this kind of power generation
Project cannot get periphery masses support, it is difficult to land.
(2) investment is big, and due to the characteristics of biomass is wide, difficult concentration, most of biomass power generation by waste combustion projects all exist
Unit is small, causes generating efficiency low, and investment is much larger than conventional thermal power plant.Especially waste incineration power generation project makes a new start because of cigarette
The improvement of gas dioxin increases cost of investment.
(3) less economical, biomass power generation project, unit is much smaller than conventional thermal power plant, the fortune such as unit steam pressure, temperature
Row parameter is relatively low, and generating efficiency is low；Cost of investment is big；Manually, the O&M costs such as maintenance are much higher than conventional thermal power plant.These because
Element causes project comprehensive economy poor, needs to get a profit by support on policy.
(4) construction cycle time is long.Biomass power generation project construction, the construction including a whole set of power plant, construction scale
Greatly, the time is long.
Problem of the existing technology is:
(1) there is processing rubbish in existing biomass power generation technical process, there are dioxin for the power generation by waste combustion project of sludge
Also therefore there is landing hardly possible in pollution.
(2) existing biomass power generation technical process investment is big.
(3) existing biomass power generation technical process is less economical, and comprehensive economy is poor.
(4) that there are construction cycle times is long for existing biomass power generation technical process.
Solve the meaning of above-mentioned technical problem: near pulverized-coal fired boiler power station, low cost solves house refuse, agricultural are discarded
Great amount of investment is saved in the influence of residue, sludge to environment, is reduced and is occupied the good soil in good farmland, reduces pollution sources, build to conservation culture
If making tremendous contribution.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of biomass pyrogenation gasification systems to couple pulverized-coal fired boiler
Power station electricity-generating method.
The invention is realized in this way a kind of biomass pyrogenation gasification system couples pulverized-coal fired boiler power station electricity-generating method, institute
Stating the biomass of biomass pyrogenation gasification system coupling pulverized-coal fired boiler power station electricity-generating method, be converted by pyrolysis gasification system can
Combustion gas body is transported to pulverized-coal fired boiler power station combustion power generation, realizes using energy source；Specifically: biomass in pyrolysis gasification system,
It is fuel gas into pyrolysis gasification furnace pyrolytic gasification, then fuel gas is transported to coal dust pot after preprocessed crushing is dry
Furnace power station combustion power generation.
The biomass pyrogenation gasification system coupling pulverized-coal fired boiler electricity is realized another object of the present invention is to provide a kind of
It stands the biomass pyrogenation gasification system of electricity-generating method, the biomass energy pyrolysis gasification system includes:
Pretreatment unit, for being crushed to biomass, drying pretreatment；
Pyrolysis gasification furnace unit, for being fuel gas by pretreated biomass pyrogenation gasification；
Measurement control unit is conveyed to the fuel gas in pulverized-coal fired boiler power station for controlling and measuring；
Gas station unit is stored, for storing the fuel gas of pyrolysis gasification furnace production or releasing fuel gas for coal dust
Boiler power station uses.
Further, the pretreatment unit crushes biomass, and leachate is pumped into the raw material of crushing and is dried together；
Including biomass storage silo, grinding device, drying unit, leaching liquid pump, leachate pumping pipeline.
Further, top of gasification furnace destructive distillation fuel gas is pumped to combustion inside gasification furnace by the pyrolysis gasification furnace unit
It burns, and is used using fuel gas energy heats air for pretreatment unit；Including pyrolytic gasification furnace body, sealed feeder unit,
Feed pipe, destructive distillation fuel gas conduit, destructive distillation combustion gas blower, destructive distillation fuel gas nozzle, middle section pyrolytic gasification combustion gas exhaust tube, heat exchange in furnace
Device, heat exchange blower fan, rotation grate, grate driving motor, ash-pan, pyrolytic gasification fresh-air fan, deduster.
Further, described to measure the combustion heating amount for being conveyed to power plant's fuel gas, control conveys the flammable of station boiler
Gas quickly close it is short, open-minded, and according to power plant need adjust storage gas station storage or transporting combustible gases；Including fuel gas
Delivery pipe, fuel gas delivery pump, flowmeter, calorific value monitor, control and caloricity gaging device, quick closing valve valve, storage combustion gas
It stands Bidirectional adjusting valve.
Further, storage gas station unit can store fuel gas, and fuel gas supply is increased when power plant needs
Speed stores fuel gas when power plant does not need.
Another object of the present invention is to provide a kind of agricultural waste residual using the biomass pyrogenation gasification system
Object electrification technique, the agricultural scrap residues electrification technique include: to work as that the agricultural scrap residues such as stalk is used to do biomass
When fuel, agricultural scrap residues after crushing, drying, into pyrolysis gasification furnace pyrolytic gasification, are generated in pretreatment unit
Fuel gas is measured and is controlled by measurement control unit, and it is flammable that storage gas station stores and increase as needed supply power plant
Gas combustion power generation.
Another object of the present invention is to provide a kind of sewage treatments using the biomass pyrogenation gasification system, water body
The electrification technique of sludge, the sewage treatment, water sludge electrification technique include: when using the sludge such as sewage treatment, water body
When doing biomass fuel, sludge, by crushing, drying, has peculiar smell since sludge drying is vented, drying exhaust in pretreatment unit
Must be installed additional out after smelly device eliminates the unusual smell before emptying could empty；Pyrolyzing sludge gasification simultaneously.
Another object of the present invention is to provide a kind of hairs of house refuse using the biomass pyrogenation gasification system
Galvanic process, the electrification technique of the house refuse include: to install iron remover additional before crushing in pretreatment unit to carry out except iron, drying
It installs additional out after smelly device eliminates the unusual smell and could empty before exhaust emptying；Pyrolyzing sludge gasification simultaneously.
Another object of the present invention is to provide a kind of power stations using the biomass pyrogenation gasification system.
Biomass power generation is realized in the pulverized-coal fired boiler power station that the present invention has been built up by coupling, compared with prior art, tool
It has the advantage that
(1) small, pulverized-coal fired boiler power station is invested, boiler, steam turbine, power generation, ash disposal desulfurization removing nitric environmental protection facility etc. are all existing
At, only need to invest biomass pyrogenation gasification system using the present invention, and traditional biomass power generation project is small, investment height, throwing
Money amount is substantially saved.
(2) generating efficiency is high.The main indicator for influencing generating efficiency is the temperature and pressure of steam, and pulverized-coal fired boiler power station is steamed
The temperature and pressure ratio of vapour is that there are many biomass power generation project eminence.
(3) more environmentally friendly, no dioxin.Pulverized-coal fired boiler power station unit is big, and fume treatment investment, O&M all compare biomass power generation
Project is strong, and when using garbage power, will not generate dioxin.
(4) O&M is simple, and expense is low.The present invention only considers the O&M of gasification and pyrolysis system, pyrolysis gasification system structure letter
Single, operation needs manpower few, and O&M expense is than low.
(5) investment time is short, quick.Biomass pyrogenation gasification system is only invested, without the concern for building for power generation project
It is quick if investment time is short.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of biomass energy pyrolysis gasification system provided in an embodiment of the present invention；
Fig. 2 is the operation principle schematic diagram of embodiment 1 provided in an embodiment of the present invention；
Fig. 3 is the operation principle schematic diagram of embodiment 2 provided in an embodiment of the present invention；
Fig. 4 is the operation principle schematic diagram of embodiment 3 provided in an embodiment of the present invention；
In figure: 1, pyrolysis gasification system；2, pulverized-coal fired boiler power station；3, pretreatment unit；4, pyrolysis gasification furnace unit；5, it counts
Measure control unit；6, gas station unit is stored；7, biomass storage silo；8, grinding device；9, leaching liquid pump；10, leachate is taken out
Send pipeline；11, drying unit；12, pyrolytic gasification furnace body；13, sealed feeder unit；14, destructive distillation fuel gas conduit；15, charging in furnace
Pipe；16, heat exchanger；17, heat exchange blower fan；18, deduster；19, middle section pyrolytic gasification combustion gas exhaust tube；20, destructive distillation combustion gas blower；
21, destructive distillation fuel gas nozzle；22, grate is rotated；23, ash-pan；24, pyrolytic gasification fresh-air fan；25, fuel gas delivery pipe；26,
Grate driving motor；27, control and caloricity gaging device；28, flowmeter；29, gas station Bidirectional adjusting valve is stored；30, calorific value
Monitor；31, fuel gas delivery pump；32, quick closing valve valve；33, drying is vented out smelly device；34, iron remover.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
There is processing rubbish for existing biomass power generation technical process, there are dioxin for the power generation by waste combustion project of sludge
Pollution, investment is big, and less economical, comprehensive economy is poor, the long problem of construction cycle time.The present invention has been built up by coupling
Pulverized-coal fired boiler power station, realize biomass power generation.
Structure of the invention is explained in detail with reference to the accompanying drawing.
As shown in Figure 1, biomass energy pyrolysis gasification system provided in an embodiment of the present invention includes: pretreatment unit 3, heat
Solve gasification furnace unit 4, measurement control unit 5, storage gas station unit 6.
Pretreatment unit 3 crushes biomass, dries pretreatment.
Pretreated biomass pyrogenation gasification is fuel gas by pyrolysis gasification furnace unit 4.
Measurement control unit 5, control and metering are conveyed to the fuel gas in pulverized-coal fired boiler power station.
Gas station unit 6, the fuel gas of storage pyrolysis gasification furnace production are stored, or releases fuel gas for coal dust pot
Furnace power station uses.
In a preferred embodiment of the invention, pretreatment unit 3 crushes biomass, and leachate is pumped into the original of crushing
It is dried together in material, leachate is avoided to generate pollution, specifically include biomass storage silo 7, grinding device 8, leaching liquid pump 9, drip
Filtrate pumping pipeline 10, drying unit 11.
In a preferred embodiment of the invention, pyrolysis gasification furnace unit 4 is by 12 top destructive distillation combustible gas of pyrolytic gasification furnace body
Body pumps to 12 internal-combustion of pyrolytic gasification furnace body, and is used using fuel gas energy heats air for pretreatment unit 3, tool
Body includes pyrolytic gasification furnace body 12, sealed feeder unit 13, destructive distillation fuel gas conduit 14, feed pipe 15, heat exchanger 16, heat exchange wind in furnace
Machine 17, deduster 18, middle section pyrolytic gasification combustion gas exhaust tube 19, destructive distillation combustion gas blower 20, destructive distillation fuel gas nozzle 21, rotation grate
22, ash-pan 23, pyrolytic gasification fresh-air fan 24, grate driving motor 26.
In a preferred embodiment of the invention, measurement control unit 5, for measuring the burning for being conveyed to power plant's fuel gas
Calorific value, control conveying station boiler fuel gas quickly close it is short, open-minded, and according to power plant need adjust storage gas station deposit
Storage or transporting combustible gases specifically include fuel gas delivery pipe 25, control and caloricity gaging device 27, flowmeter 28, storage
Gas station Bidirectional adjusting valve 29, calorific value monitor 30, fuel gas delivery pump 31, quick closing valve valve 32.
In a preferred embodiment of the invention, storage gas station unit 6 adds for storing fuel gas when power plant needs
Big fuel gas supply rate, fuel gas is stored when power plant does not need.
Biomass energy pyrolysis gasification method provided in an embodiment of the present invention includes: that biomass is turned by pyrolysis gasification system
Fuel gas is turned to, pulverized-coal fired boiler power station combustion power generation is transported to, realizes using energy source；Specifically: biomass is in pyrolytic gasification
It is fuel gas into pyrolysis gasification furnace pyrolytic gasification, then fuel gas is transported to after preprocessed crushing is dry in system
Pulverized-coal fired boiler power station combustion power generation.
Technical solution of the present invention is further described combined with specific embodiments below.
Embodiment 1:
General biomass pyrogenation gasification system provided in an embodiment of the present invention couples pulverized-coal fired boiler power station electrification technique, is applicable in
In the agricultural scrap residues such as stalk；It specifically includes: when doing biomass fuel using the agricultural scrap residues such as stalk, agricultural
Scrap residues after crushing, drying, into pyrolysis gasification furnace pyrolytic gasification, generate fuel gas, lead in pretreatment unit
Measurement control unit metering and control are crossed, storage gas station stores and increase as needed supply power plant's gas fuel burning hair
Electricity.
Embodiment 2:
The embodiment of the present invention provides the biomass pyrogenation gasification system coupling coal dust for being suitable for the sludge such as sewage treatment, water body
Boiler power station electrification technique specifically includes: when doing biomass fuel using sludge such as sewage treatment, water bodys, sludge is being pre-processed
Unit is by crushing, drying must be installed additional out after smelly device 33 eliminates the unusual smell since sludge drying exhaust has a peculiar smell before drying exhaust emptying
It could empty.
Pyrolyzing sludge gasification simultaneously, can generate a small amount of dioxin, and meeting nature disappears in power boiler burning power generation process
It removes.
During coupling pulverized-coal fired boiler power station combustion power generation of the invention, the mechanism for eliminating dioxin is as follows:
(1) high-temp combustion decomposes dioxin.
Dioxin is more than 3 seconds in 850 DEG C of temperature or more of environment, can effectively be decomposed.And temperature is higher, decomposes speed
It spends faster.
The boiler furnace burning in coupling pulverized-coal fired boiler power station of the invention, flue-gas temperature distribution are dropped from 1400 DEG C of flame kernel
900-1100 DEG C is exported as low as roof of the furnace, the high-temperature region residence time is more than 4 seconds, and temperature and time is all much larger than decomposition dioxin
Standard.
(2) dioxin is avoided to recombine in flue gas cooling procedure.
Flue gas synthesis dioxin condition: flue gas be in dioxin generate 300 DEG C~500 DEG C environment of temperature, there are free
The uncombusted organic matter of state, there are free state chlorine elements.Common practice is flue gas full combustion, removes in flue gas and dissociates
The uncombusted organic matter of state；Remove free state chlorine element in flue gas；Flue gas is quickly cooled down, in 300 DEG C~500 DEG C temperature environments
No more than 1 second.
The boiler in coupling pulverized-coal fired boiler power station of the invention, ash of the fire coal containing 30-40% used contain in the ash of this part
There is a large amount of calcium oxide, be in molten condition in hot environment, can effectively absorb chlorine element, be therefore not present in flue gas in power station boiler
Free state chlorine element does not synthesize the free state chlorine element of dioxin needs；Power plant's coal dust is in suspended state in burner hearth
Burning, most combustibles are all burnt out in furnace, and a small amount of uncombusted carbon is that glassy mass covers by surface, in flue gas not
Containing free organic substance, the free state organic matter of dioxin needs is not synthesized；Flue gas in power station boiler is reduced to from 500 DEG C
300 DEG C of times less than 1 second, do not synthesize the time of dioxin needs.
Embodiment 3:
The embodiment of the present invention provides the biomass pyrogenation gasification system coupling pulverized-coal fired boiler power station hair for being suitable for house refuse
Galvanic process specifically includes: when doing biomass fuel using house refuse, since rubbish miscellaneous would generally have certain discarded steel
Iron, and peculiar smell is serious, installs iron remover 34 additional before crushing in pretreatment unit and install additional out before drying exhaust emptying except iron
Smelly device 33 could empty after eliminating the unusual smell.Pyrolyzing sludge gasification simultaneously, the dioxin that can be generated, in power boiler burning power generation process
Middle meeting nature is eliminated.
Domestic garbage pyrolysis gasification simultaneously, can generate certain dioxin, can be certainly in power boiler burning power generation process
It so eliminates, mechanism is as described above.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of biomass pyrogenation gasification system couples pulverized-coal fired boiler power station electricity-generating method, which is characterized in that the biomass thermal
The biomass of solution gasification system coupling pulverized-coal fired boiler power station electricity-generating method is converted into fuel gas by pyrolysis gasification system, conveys
To pulverized-coal fired boiler power station combustion power generation, using energy source is realized；Specifically: biomass is in pyrolysis gasification system, preprocessed powder
It is fuel gas into pyrolysis gasification furnace pyrolytic gasification after broken drying, then fuel gas is transported to the burning of pulverized-coal fired boiler power station
Power generation.
2. a kind of biomass for realizing the coupling pulverized-coal fired boiler power station electricity-generating method of biomass pyrogenation gasification system described in claim 1
Pyrolysis gasification system, which is characterized in that the biomass energy pyrolysis gasification system includes:
Pretreatment unit, for being crushed to biomass, drying pretreatment；
Pyrolysis gasification furnace unit, for being fuel gas by pretreated biomass pyrogenation gasification；
Measurement control unit is conveyed to the fuel gas in pulverized-coal fired boiler power station for controlling and measuring；
Gas station unit is stored, for storing the fuel gas of pyrolysis gasification furnace production or releasing fuel gas for pulverized-coal fired boiler
Power station uses.
3. biomass pyrogenation gasification system as claimed in claim 2, which is characterized in that the pretreatment unit is by biomass powder
It is broken, and leachate is pumped into the raw material of crushing and is dried together；Including biomass storage silo, grinding device, drying unit, leaching
Liquid pump, leachate pumping pipeline.
4. biomass pyrogenation gasification system as claimed in claim 2, which is characterized in that the pyrolysis gasification furnace unit will gasify
Destructive distillation fuel gas in furnace roof portion pumps to gasification furnace internal-combustion, and using fuel gas energy heats air for pretreatment unit
It uses；Including feed pipe, destructive distillation fuel gas conduit, destructive distillation combustion gas blower, destructive distillation combustion in pyrolytic gasification furnace body, sealed feeder unit, furnace
Gas nozzles, middle section pyrolytic gasification combustion gas exhaust tube, heat exchanger, heat exchange blower fan, rotation grate, grate driving motor, ash-pan, pyrolysis
Gasify fresh-air fan, deduster.
5. biomass pyrogenation gasification system as claimed in claim 2, which is characterized in that the metering is conveyed to power plant's combustible gas
The combustion heating amount of body, control conveying station boiler fuel gas quickly close it is short, open-minded, and according to power plant need adjust storage
Gas station storage or transporting combustible gases；Including fuel gas delivery pipe, fuel gas delivery pump, flowmeter, calorific value monitor,
Control and caloricity gaging device, quick closing valve valve, storage gas station Bidirectional adjusting valve.
6. biomass pyrogenation gasification system as claimed in claim 2, which is characterized in that storage gas station unit can store
Fuel gas increases fuel gas supply rate when power plant needs, fuel gas is stored when power plant does not need.
7. a kind of agricultural scrap residues using biomass pyrogenation gasification system described in claim 2~6 any one generate electricity
Technique, which is characterized in that the agricultural scrap residues electrification technique includes: to work as that the agricultural scrap residues such as stalk is used to do life
When biomass fuel, agricultural scrap residues in pretreatment unit after crushing, drying, into pyrolysis gasification furnace pyrolytic gasification,
Fuel gas is generated, is measured and is controlled by measurement control unit, storage gas station stores and increase as needed supply power plant
Gas fuel burning power generation.
8. a kind of using the sewage treatment of biomass pyrogenation gasification system, water sludge described in claim 2~6 any one
Electrification technique, which is characterized in that the sewage treatment, water sludge electrification technique include: when using sewage treatment, water body etc.
When sludge does biomass fuel, sludge, by crushing, drying, since sludge drying exhaust has peculiar smell, is dried in pretreatment unit
It must install additional out after smelly device eliminates the unusual smell and could empty before exhaust emptying；Pyrolyzing sludge gasification simultaneously.
9. a kind of electrification technique using the house refuse of biomass pyrogenation gasification system described in claim 2~6 any one,
It is characterized in that, the electrification technique of the house refuse includes: to install iron remover additional before crushing in pretreatment unit to carry out except iron,
It installs additional out after smelly device eliminates the unusual smell and could empty before drying exhaust emptying；Pyrolyzing sludge gasification simultaneously.
10. a kind of power station using biomass pyrogenation gasification system described in claim 2~6 any one.
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