CN109609192A - A kind of high-efficiency and energy-saving type two-stage type biomass gasification stove gasification system - Google Patents
A kind of high-efficiency and energy-saving type two-stage type biomass gasification stove gasification system Download PDFInfo
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- CN109609192A CN109609192A CN201910078053.8A CN201910078053A CN109609192A CN 109609192 A CN109609192 A CN 109609192A CN 201910078053 A CN201910078053 A CN 201910078053A CN 109609192 A CN109609192 A CN 109609192A
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- 238000002309 gasification Methods 0.000 title claims abstract description 139
- 239000002028 Biomass Substances 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000005201 scrubbing Methods 0.000 claims abstract description 20
- 238000001035 drying Methods 0.000 claims abstract description 16
- 238000000926 separation method Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000001833 catalytic reforming Methods 0.000 claims description 17
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 15
- 239000002893 slag Substances 0.000 claims description 14
- 239000003054 catalyst Substances 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 12
- 238000001556 precipitation Methods 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000013461 design Methods 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 5
- 229910052593 corundum Inorganic materials 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- QDOXWKRWXJOMAK-UHFFFAOYSA-N chromium(III) oxide Inorganic materials O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims description 3
- 229910000514 dolomite Inorganic materials 0.000 claims description 3
- 239000010459 dolomite Substances 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 2
- 238000005245 sintering Methods 0.000 claims description 2
- 239000010431 corundum Substances 0.000 claims 1
- 238000004321 preservation Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 91
- 238000005516 engineering process Methods 0.000 abstract description 10
- 239000000567 combustion gas Substances 0.000 abstract description 6
- 238000006555 catalytic reaction Methods 0.000 abstract description 4
- 230000006978 adaptation Effects 0.000 abstract 1
- 230000001376 precipitating effect Effects 0.000 abstract 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 239000002737 fuel gas Substances 0.000 description 6
- 239000000446 fuel Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 150000002989 phenols Chemical class 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 4
- 150000002790 naphthalenes Chemical class 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000000855 fermentation Methods 0.000 description 3
- 230000004151 fermentation Effects 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 239000012774 insulation material Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000011269 tar Substances 0.000 description 3
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 239000007809 chemical reaction catalyst Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 238000002207 thermal evaporation Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 230000001476 alcoholic effect Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 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
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 150000002430 hydrocarbons Chemical group 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001535 kindling effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000011276 wood tar Substances 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
- C10J3/721—Multistage gasification, e.g. plural parallel or serial gasification stages
-
- 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
- C10J3/723—Controlling or regulating the gasification process
-
- 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
- C10J2200/00—Details of gasification apparatus
- C10J2200/06—Catalysts as integral part of gasifiers
-
- 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
-
- 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
- C10J2300/169—Integration of gasification processes with another plant or parts within the plant with water treatments
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Abstract
The invention discloses a kind of high-efficiency and energy-saving type two-stage type biomass gasification stove gasification systems, belong to energy science and technology field, it include: bucket elevator, biomass gasifying furnace, steam generator, air preheater, gas scrubbing tower, gas-drying apparatus, gas cooler, roots blower, gas collection container, the bucket elevator is connected to closed storage hopper, and lower part connects gasification furnace.The gasification furnace is divided into burner hearth, catalytic reaction zone, gas clinker separation chamber and ash hole, and lower part connects water sealed tank；Steam generator is arranged in the rear portion of gasification furnace, and the steam generator and drum, sub-cylinder form circulation loop, later successively after air preheater, gas scrubbing tower, gas-drying apparatus, gas cooler, inputs gas collection container by roots blower；The lower part setting precipitating sink of system.This system is sturdy and durable, safety and stability, and structure is simple, easy to operate, and gasification efficiency is high, and combustion gas quality is good, material wide adaptation range and advantage of lower cost.
Description
Technical field
The present invention relates to energy science and technology field, specifically a kind of high-efficiency and energy-saving type two-stage type biomass gasification stove gasification
System.
Background technique
With the sustainable fast development of domestic and international economy, the disposable resource supply and demand notch such as petroleum, natural gas, coal gas by
Year increases, and there is an urgent need to a kind of low price, energy conservation, safe, clean New-type fuels to enter market by people.Due to gaseous fuel height
Effect cleans, conveniently, so the research and development of biomass gasification technology have obtained extensive attention both domestic and external, and achieves encouraging progress.
The Biomass Energy Resources production capacity of the Western European countries is bigger in national basic power source consumption proportion, at present in the U.S., Austria
4%, 10%, 16% is accounted for respectively in the basic power source consumption of the various countries such as Sweden.For this purpose, developed country and developing country all
The biomass utilization technologies research and application of all multipaths are actively developed, biomass energy develop and uses major technique hand at present
Duan You: biomass microorganism fermentation, it includes biomass marsh gas fermentation, biomass alcoholic fermentation；Biomass thermal chemical conversion skill
Art, it includes biomass pyrolytic technology, biomass gasification technology, phyteral compression forming and biology carbon technique；Biomass energy
Source ecological engineering.
Biomass gasification technology, the basic principle is that under the conditions of imperfect combustion, it is higher by having in organic biomass
The hydrocarbon chain of molecular weight cracks, and CO, H of lower molecular weight are converted to through peroxidating and reduction reaction2、CH4Equal combustible gases
Body is a kind of efficient biomass energy transformation way.The fuel gas that biomass is generated through gasification, can be widely used for cooking, adopts
Warm, industry heating and drying, are also used as the fuel of the thermodynamic devices such as internal combustion engine, gas turbine, output power or power,
Improve the energy grad and utilization efficiency of biomass.
Biomass gasification technology is to develop a kind of relatively rapider and reliable biomass energy utilization technologies, present state in recent years
Carrier selected by the biomass gasification technology of interior mainstream is fluidized-bed gasification furnace, is often mixed in the reaction mass of fluidized-bed gasification furnace
There is the inert material sand of selected mistake, in the case where being blown into gasifying agent effect, material particles, sand, gasifying agent contact are sufficiently, heated to fill
Point, it is in " boiling " combustion state in furnace, gasification reaction speed is fast, and production capacity is strong, and gasification efficiency is high.And in-furnace temperature is high
And it is constant, tar is cracked to form gas at high temperature, therefore tar content is smaller, and more ash is contained in the combustion gas only come out of the stove
Point.And the main distinction of circle fluidized-bed gasification furnace and single fluidized bed is that circle fluidized-bed gasification furnace in gas outlet is equipped with rotation
Wind separator or bag separator separate carbon granule and sand that combustion gas carries, participate in gasification again after returning to gasification furnace
Reaction.And the fuel value of recirculating fluidized bed is higher, uncombusted substance is less, be uniquely in the gasification furnace of constant temperature bed reaction,
Gasification reaction carries out in bed, and tar also cracks in bed, and the later carbon granule of gas solid separation is constantly circulated back in reacting furnace, because
And big bed density is kept, grain density is evenly distributed on bed section, and carbon granule is made to have time enough to stop in bed, with suitable
The slow-footed needs of reduction reaction are answered, the biomass material that moisture content is big, calorific value is low, kindling is difficult is suitble to.But recycle stream
The shortcomings that changing bed gasification furnace is to need to pre-process before filler, produces the ash content in gas and needs purified treatment well, otherwise right
Component wear is serious.
The central gas supply system that China voluntarily develops has entered practicability test and demonstration phase, and Shandong Energy Research Institute grinds
The XFF series stalk gasifier of system obtains certain social and economic benefits in the application of rural area central gas supply；Daliang City's environment
Scientific design research institute has been built up using the Lz series of biologic matter carbonization gasification installation of development for the life of l000 peasant family
With the biomass pyrolytic processing factory of combustion gas.However, current central gas supply system is in the prevalence of so-called " low load with strong power "
The amount of design requirement is often not achieved in problem, i.e., many gasification projects, and the utilization rate of biomass gasification equipment is not high, and burnt
Oily problem is difficult to thoroughly do away with, and large-scale gas line network is caused the bad the problem of causing fuel value to reduce that blocks and conduct heat occur, equipment
Disassembly and cleaning are all inconvenient, cause gasification station operation difficulty and maintenance cost all very high, the calorific value and the intensity of gasification of combustion gas are but
Relatively low, the large-scale promotion for being unfavorable for equipment uses.
Summary of the invention
It is above-mentioned to solve the object of the present invention is to provide a kind of high-efficiency and energy-saving type two-stage type biomass gasification stove gasification system
The problems in background technique.
To achieve the goals above, the present invention is the following technical schemes are provided: a kind of high-efficiency and energy-saving type two-stage type biomass gas
Change furnace gasification system, specifically includes that bucket elevator, gasification furnace, steam generator, air preheater, gas scrubbing tower, gas
Drier, gas cooler, roots blower, gas collection container, the bucket elevator top connect closed feed hopper, institute
It states closed hopper and is divided into three-level from top to bottom, star-like feed valve and electric gate valve are fixed between closed feed hopper, the
It is connected to gasification furnace below the closed feed hopper of three-level, the gasification furnace is by inner cylinder, outer cylinder and catalytic reforming zone between the two
It constitutes, is specifically divided into going out for feed inlet, burner hearth, alundum matter fixed grate, catalytic reforming zone, slag air separation chamber and lower end
The ash hole of grey mouth, lower end is consecutively connected to water sealed tank and water sealed tank, and steam generator, institute are arranged behind the gasification furnace
It states steam generator rear portion and is connected to air preheater, the tube bank of air preheater uses threaded flue, fully absorbs steam hair
The waste-heat cold air of raw device, the air preheater set gradually gas scrubbing tower, gas-drying apparatus, gas cooling later
The lower part setting of device, roots blower and gas collection container, the gas scrubbing tower, gas-drying apparatus and gas collection container is heavy
Shallow lake pond, collects condensed water and washes, the gas scrubbing tower, gas-drying apparatus, gas collection container lower end to sinking
Non-return valve is installed on the pipeline in shallow lake pond, prevents the condensate return of discharge.
Preferably, star-like feed valve and electric brake are respectively set from top to bottom between the closed feed hopper two-stage of the three-level
Valve.
Preferably, the inner cylinder of the burner hearth conical design tapered using bore；The lower part of gasification furnace burner hearth is sintered rigid
Oxide layer is arranged in beautiful matter fixed grate top, and gasification agent steam entrance is arranged in lower furnace portion alundum matter fixed grate top,
Air inlet is arranged on gasification agent steam entrance top；For gas channel of gasifying, gasification gas goes out the lower furnace portion straight section for using bore tapered
Mouth is communicated with slag air separation chamber, and fire grate, i.e. alundum matter fixed grate are equipped between burner hearth and slag air separation chamber
With gasification gas channel, slag air separation chamber top is provided with gasification stream and goes out gasification furnace channel, in outflow gasification furnace channel
Middle setting catalytic reforming zone, the replaceable honeycomb catalyst catalysts device of placement in catalytic reforming zone, by gasification gas
Self-energy and honeycomb catalyst catalysts device further cracking reformation is carried out to gasification gas, make to produce in gasification
Raw phenols, naphthalenes macromolecular are converted into the fuel gas such as methane, hydrogen, CO；It is arranged in the catalytic reforming zone replaceable
The catalyst that honeycomb catalyst catalysts device uses is dolomite, Al2O3、Cr2O3Etc. the honeycomb ceramics being made into, gasify gas
Gas passage in honeycomb ceramics is flowed through, the cleavable within the scope of 450 DEG C ~ 750 DEG C is first to phenols, naphthalenes macromolecular through the catalyst
The fuel gas such as alkane, hydrogen, CO.The inside of gasification furnace is the gasify zoneofoxidation of each layer, reaction zone, catalytic reforming zone, and outer layer is
Insulating layer, the insulating layer is by filled thermal insulation materials such as alumina silicate fibres, and furnace roof arranges feed inlet, using flange seal, burner hearth
Bottom is equipped with ash hole, is consecutively connected to the water sealed tank and water sealed tank of lower section, liquidometer is disposed in the water sealed tank, control tank
Interior water level, the top of water sealed tank are equipped with dragveyer, the solid lime-ash that discharge burning and gasification generate.
Preferably, the rear portion of gasification furnace is connected to air preheater, and the inlet of the air preheater is equipped with air stream
Control valve door needs the cold air of sustainable supply control flow according to the oxidation process for providing gasification energy, through air preheat
Gasification furnace is sent into after device and thermal evaporation gas heat exchange.
Preferably, the gas cooler mainly consists of three parts, and first part passes through water circulating pump, water tank, gas
Recirculated water heat-transfer surface built in cooler is connected by pipeline, carries out heat exchange cooling to gasification gas；Gas described in second part is cold
But device is connected with the air heat-exchange face built in air blower, gas cooler by pipeline, is changed using cold air gasification gas
Heat is cooling；Part III is that the water supply that the water supply of steam generator is pumped into built in gas cooler by boiler feed pump is heated
It is sent after heating to steam generator in heating surface, heat exchange cooling is carried out to gasification gas using the water supply of steam generator.
Preferably, the front of the gas collection container arranges that demister, the residual moisture in removing gasification gas improve gas
Change the quality of gas.
Preferably, the scrub raffinate of the gas scrubbing tower generation and gas-drying apparatus, gas collection container generate cold
Condensate is all discharged into the precipitation pond of lower section, is followed between the precipitation pond and gas scrubbing tower by water circulating pump and pipeline formation
Loop back path.
Compared with prior art, the beneficial effects of the present invention are the internal structures by reasonable design gasification furnace significantly
The quality and gasification efficiency of gasification gas are improved, the quality for the gas that gasifies can be by 1500Kcal/Nm3It is increased to 3500Kcal/Nm3With
On, gasification efficiency reaches 70% or more, while material is more adaptable, and without phenols, naphthalene with cementability in gasification gas
The wood tar substance such as class, is dusted, depickling, dehydration etc. not only effectively improve combustion gas quality by gas cleaning link,
Lime-ash and waste water are also separated, handle or recycled in time, and waste water can be recycled after precipitation process, desliming, realize without sewage
Discharge；By selecting that there is the refractory material for meeting gasification of biomass catalysis needs and thermal insulation material can be conducive to gasification
It is rapid, thoroughly complete and reduce energy consumption, while reducing equipment attrition, reach sturdy and durable, operational safety is stable wants
It asks；And this system main structure is simple, and it is easy to maintain.
Detailed description of the invention
Fig. 1 is the system flow chart of biomass gasifying furnace；
Fig. 2 is the main view of biomass gasifying furnace；
Fig. 3 is the side view of biomass gasifying furnace；
Fig. 4 is the cross-sectional view in the face A-A in Fig. 2；
Fig. 5 is the cross-sectional view in the face B-B in Fig. 2；
Fig. 6 is the cross-sectional view in the face C-C in Fig. 2；
Fig. 7 is the cross-sectional view in the face D-D in Fig. 2.
In figure, 1, bucket elevator, 2, gasification furnace, 3, steam generator, 4, air preheater, 5, gas scrubbing tower, 6,
Gas-drying apparatus, 7, gas cooler, 8, roots blower, 9, gas collection container, 10, closed feed hopper, 11, star-like feed
Valve, 12, electric gate valve, 13, non-return valve, 14, water tank, 15, air blower, 16, precipitation pond, 17, dragveyer, 18, burner hearth, 19,
Alundum matter fixed grate, 20, catalytic reforming zone, 21, water sealed tank, 22, water sealed tank, 23, slag air separation chamber, 24, liquid level
Meter, 25, feed inlet, 26, gasification furnace ash hole, 27, air inlet, 28, gasification agent steam entrance, 29, gasification gas channel.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only the preferred embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1: Fig. 1-Fig. 7, a kind of high-efficiency and energy-saving type two-stage type biomass gasification stove gasification system are please referred to, comprising:
Bucket elevator 1, gasification furnace 2, steam generator 3, air preheater 4, gas scrubbing tower 5, gas-drying apparatus 6, gas cooling
The top of device 7, roots blower 8, gas collection container 9, the bucket elevator 1 is installed by closed feed hopper 10, the closing
Formula hopper 10 is divided into three-level from top to bottom, and gasification furnace 2, the gasification furnace 2 are connected to below the closed feed hopper 10 of the third level
It is made of inner cylinder, outer cylinder and catalytic reforming zone 20 between the two, including feed inlet 25, burner hearth 18, alundum matter stationary furnace
19, catalytic reforming zone 20, slag air separation chamber 23 and lower end gasification furnace ash hole 26 are arranged, it is rigid that sintering has been disposed in the burner hearth 18
Beautiful matter fixed grate 19；Steam generator 3 is set after the gasification furnace 2, it is pre- that 3 rear portion of steam generator is connected to air
The inlet of hot device 4, the air preheater 4 is equipped with air flow control valve, according to the oxidation process of offer gasification energy
The cold air for needing sustainable supply control flow, is sent into gasification furnace after air preheater and thermal evaporation gas heat exchange；It is described
Gas scrubbing tower 5, gas-drying apparatus 6, gas cooler 7 are set gradually after air preheater 4, the gas cooler 7 is main
It consists of three parts, first part is passed through by the recirculated water heat-transfer surface built in water circulating pump, water tank 14, gas cooler 7
Pipeline is connected, and carries out heat exchange cooling to gasification gas；In gas cooler 7 described in second part and air blower 15, gas cooler 7
The air heat-exchange face set is connected by pipeline, carries out heat exchange cooling to gasification gas using cold air；Part III is steam generation
The water supply of device 3 is pumped into after the interior heating of heating surface is heated in the water supply built in gas cooler 7 by boiler feed pump and is sent to steam
Generator 3 carries out heat exchange cooling to gasification gas using the water supply of steam generator 3；Roots's wind after the gas cooler 7
Gasification conductance is entered the gas collection container 9 being arranged below by machine 8, and demister is arranged in the inlet of the gas collection container 9, into
One step improves the quality of gasification gas to gasification qi exhaustion water；The gas scrubbing tower 5, gas-drying apparatus 6 and gas collection container 9
It is connected to the precipitation pond 16 of lower section, by condensed water and washes discharge system, the gas scrubbing tower 5 and precipitation pond 16
Circulation loop is formed by water circulating pump and pipeline, fuel gas is sufficiently washed, the gas scrubbing tower 5, gas are dry
Dry device 6, gas collection container 9 lower end and precipitation pond 16 between pipeline on non-return valve 13 is respectively set, avoid steam return
Stream.
The inner cylinder of the burner hearth 18 is the tapered conical design of bore, effectively improves efficiency of combustion, gasifying agent is in gasification furnace 2
It is preheated in the zoneofoxidation of lower part, burner hearth 18 is sent by gasification gas channel 29 and gos deep into the thorax heart, fired in 18 center concentrated oxygen supply of burner hearth
It burns, participates in gasification reaction into burner hearth 18；The gasification gas that burning generates by the gasification gas channel 29 of 18 lower part straight section of burner hearth into
Enter slag air separation chamber 23, is provided with gasification stream between the inside and outside cylinder of the 23 top gasification furnace 2 of slag air separation chamber and goes out
Gasification furnace channel, the coal gas that 2 lower part slag air separation chamber 23 of gasification furnace generates go out in gasification furnace channel to arrange by gasification stream
Catalytic reforming zone 20 flow out gasification furnace 2, replaceable catalytic reaction catalyst device built in the catalytic reforming zone 20, rely on
The self-energy and catalytic reaction catalyst device of gasification gas carry out further cracking reformation to gasification gas, make to produce in gasification
Raw phenols, naphthalenes macromolecular are converted into the fuel gas such as methane, hydrogen, CO, improve the quality of gasification gas；The catalytic reforming
The catalyst that the replaceable catalyst reaction device of arrangement uses in area 20 is dolomite, Al2O3、Cr2O3Etc. the honeycomb ceramics being made into,
Gasification stream can split phenols, naphthalenes macromolecular through gas passage in honeycomb ceramics, through the catalyst within the scope of 450 DEG C ~ 750 DEG C
Solution is the fuel gas such as methane, hydrogen, CO.The inside of gasification furnace 2 is the zoneofoxidation of each gasification layer, reaction zone, catalytic reforming zone,
Outer layer is by the insulating layer of the filled thermal insulation materials such as alumina silicate fibre, and furnace roof is feed inlet 25, using flangeseal, burner hearth 18
Bottom is equipped with ash hole, is consecutively connected to the water sealed tank 21 and water sealed tank 22 of lower section, is disposed with liquidometer in the water sealed tank 21
24, for measuring the water level conditions in water sealed tank 21, the top of water sealed tank 22 is equipped with dragveyer 16, and discharge burns and gasified
The solid lime-ash that journey generates.
In the present invention unless specifically defined or limited otherwise, term " installation ", " setting ", " connection ", " fixation ",
Terms such as " arrangements " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be with
It is mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside a element, unless otherwise restricted clearly, for the common of this field
For technical staff, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of high-efficiency and energy-saving type two-stage type biomass gasification stove gasification system, comprising: bucket elevator (1), gasification of biomass
Furnace (2), steam generator (3), air preheater (4), gas scrubbing tower (5), gas-drying apparatus (6), gas cooler (7),
Roots blower (8), gas collection container (9), it is characterised in that: bucket elevator (1) top connects closed feed hopper
(10), the closed hopper (10) is divided into three-level from top to bottom, and gasification furnace is arranged below the closed feed hopper of the third level
(2), the gasification furnace (2) is made of inner cylinder, outer cylinder and catalytic reforming zone (20) between the two, is specifically divided into feed inlet
(25), burner hearth (18), alundum matter fixed grate (19), catalytic reforming zone (20), slag air separation chamber (23) and lower end
Steam generator (3) are arranged later in ash hole (26), the biological gasification furnace (2), are arranged after the steam generator (3) empty
Gas scrubbing tower (5), gas-drying apparatus (6), gas cooling are set gradually after air preheater (4), the air preheater (4)
Device (7), roots blower (8) and gas collection container (9)；The gas scrubbing tower (5), gas-drying apparatus (6), gas collection storage
Precipitation pond (16) are arranged in the lower section of cabinet (9), in the gas scrubbing tower (5), gas-drying apparatus (6), gas collection container (9)
Lower end and precipitation pond (16) between pipeline on be arranged non-return valve (13).
2. a kind of high-efficiency and energy-saving type two-stage type biomass gasification stove gasification system according to claim 1, it is characterised in that:
Star-like feed valve (11) and electric gate valve (12) are set from top to bottom between the closed feed hopper of three-level (10) two-stage.
3. a kind of high-efficiency and energy-saving type two-stage type biomass gasification stove gasification system according to claim 1, it is characterised in that:
The inner cylinder of the burner hearth (18) conical design tapered using bore；The outer layer of the gasification furnace (2) is insulating layer, by alumina silicate
Fiber heat preservation material filling, furnace roof arrange that feed inlet (25) use flange seal；Lower part, that is, alundum of the gasification furnace (2)
Zoneofoxidation is arranged in matter fixed grate (19) top, and gasifying agent is arranged in burner hearth (18) lower part alundum matter fixed grate (19) top
Air inlet (27) are arranged on steam inlet, gasification agent steam entrance top, the heat generated for the hot-air that oxidation needs, oxidation reaction
Amount is as energy needed for gasification of biomass；Alundum matter fixed grate (19) top is main gasification zone；Burner hearth (18) and with
Communicate slag air separation chamber (23) composition furnace body, the lower furnace portion straight section for using bore tapered be gasification gas channel (29),
The outlet of gasification gas is communicated with slag air separation chamber (23), is provided with sintering between the burner hearth (18) and slag air separation chamber (23)
Corundum fixed grate (19) and gasification gas channel (29)；Slag air separation chamber (23) top is provided with gasification stream outlet
Change furnace channel, goes out setting catalytic reforming zone (20) in gasification furnace channel, placement in the catalytic reforming zone (20) in gasification stream
Replaceable honeycombed catalyst device；The catalyst that the catalyst-assembly uses is dolomite or Al2O3Or Cr2O3It is made into
Honeycomb ceramics；Furnace bottom is equipped with ash hole, is consecutively connected to the water sealed tank (21) and water sealed tank (22) of lower section, the water sealed tank (22)
It is inside disposed with liquidometer (24), the top of water sealed tank (22) is equipped with dragveyer (17).
4. a kind of high-efficiency and energy-saving type two-stage type biomass gasification stove gasification system according to claim 1, it is characterised in that:
The rear portion of biomass gasifying furnace (2) is connected with air preheater (4), and the inlet of the air preheater (4) is equipped with air stream
Control valve door, the upper end outlet of air preheater (4) are connected to the air inlet (27) of gasification furnace by pipeline.
5. a kind of high-efficiency and energy-saving type two-stage type biomass gasification stove gasification system according to claim 1, it is characterised in that:
The gas cooler (7) mainly consists of three parts, and first part passes through water circulating pump, water tank (14), gas cooler (7)
Built-in recirculated water heat-transfer surface is connected by pipeline, carries out heat exchange cooling to gasification gas；Gas cooler described in second part (7)
It is connected with the air heat-exchange face built in air blower (15), gas cooler (7) by pipeline, gasification gas is carried out using cold air
Heat exchange cooling；Part III is that the water supply of steam generator (3) is pumped into built in gas cooler (7) by boiler feed pump
It send after heating to steam generator (3) in water supply heating heating surface, gasification gas is changed using the water supply of steam generator (3)
Heat is cooling.
6. a kind of high-efficiency and energy-saving type two-stage type biomass gasification stove gasification system according to claim 1, it is characterised in that:
Demister is arranged in the front of the gas collection container (9).
7. a kind of high-efficiency and energy-saving type two-stage type biomass gasification stove gasification system according to claim 1, it is characterised in that:
The condensed water row of scrub raffinate and gas-drying apparatus (6), gas collection container (9) generation that the gas scrubbing tower (5) generates
Enter the precipitation pond (16) of lower section；Pass through water circulating pump and pipeline shape between the precipitation pond (16) and gas scrubbing tower (5)
At circulation loop.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109988591A (en) * | 2019-04-18 | 2019-07-09 | 辽宁科技大学 | A kind of preparation of paraffin gas, desulfurization detar device and method |
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