CN105838447A - Biomass gasified gas system and ash removal and slag discharging dust removal system thereof - Google Patents
Biomass gasified gas system and ash removal and slag discharging dust removal system thereof Download PDFInfo
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- CN105838447A CN105838447A CN201610401624.3A CN201610401624A CN105838447A CN 105838447 A CN105838447 A CN 105838447A CN 201610401624 A CN201610401624 A CN 201610401624A CN 105838447 A CN105838447 A CN 105838447A
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- 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
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- 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
- C10J3/34—Grates; Mechanical ash-removing devices
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- 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
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
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- 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
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/52—Ash-removing devices
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- 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
- C10J3/74—Construction of shells or jackets
- C10J3/76—Water jackets; Steam boiler-jackets
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- 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
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- 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
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- 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
- C10J2300/1615—Stripping
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- 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
- C10J2300/1631—Ash recycling
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Organic Chemistry (AREA)
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- Solid-Fuel Combustion (AREA)
Abstract
The invention discloses a biomass gasified gas system and an ash removal and slag discharging dust removal system thereof. The biomass gasified gas system comprises a feeding system, a gasification system and an ash removal and slag discharging dust removal system, wherein the feeding system is connected with a control system for harmonically controlling various systems to work; and the feeding system, the gasification system and the ash removal dust collection system are successively connected with one another from top to bottom. The ash removal and slag discharging dust removal system comprises a funnel-shaped ash sieve, a fire grate capable of being movably opened, an ash receiving hopper and a spiral conveying device. The biomass gasified gas system has the advantages of scientific and compact structure, capability of sufficiently utilizing the space and sufficiently realizing the automation of each step, high automation level, convenience in use, high efficiency in gas production, low gas outlet temperature, capability of preventing explosion of gasified gas, safety and reliability; ash and dust of the gasified gas are effectively removed, the environmental pollution is effectively reduced, the service life of relevant devices is prolonged, energy is saved, and the environment is protected; accumulated ash or coking blocks are convenient and rapid to remove; and a positive effect for enlarging the application of recyclable biomass energy can be realized.
Description
Technical field
The present invention relates to a kind of kitchen range, particularly to a kind of gasification, and combustion cooking stove with the biomass material such as fuel wood and straw as fuel.
Background technology
China is large agricultural country, there are the biomass energies such as sufficient fuel wood and straw, in the exploitation of biomass energy, conventional mode is direct combustion or gasifying electricity generation, but, need when direct combustion uses often to add fuel wood to cooking stove, in-convenience in use, gasifying electricity generation is limited to cost, and economic benefit is the best, and cannot large-scale promotion application.Tradition cooking stove is with a long history to fuel wood and straw utilization, and tradition cooking stove is because using inconvenience, and utilization rate of heat value is low, and general only 15% to 20%, big to air pollution.The most gradually abandoning in vast rural area, the exploitation amount causing biomass energy is fewer and feweri, it is impossible to effectively utilize reproducible fuel woods a large amount of in rural area and straw.
For this, carry out the biomass such as fuel wood and straw being gasificated into the small-sized ash discharge dedusting system device of combustible gas and using the biomass gasification burning system of this device to arise at the historic moment, people have invented the uniflow gas stove stove combustion gas of generation upwards inhaled, but, there are some defects in the cooking range capable of gasifying of updraft type: (1) tar content is high, cause the cooking range capable of gasifying life-span short, it is simply that to increase filter, the problem that there will be again Maintenance Difficulty；(2) aerogenesis is unstable, and the gasification of biomass is difficult to control to, and leverages the popularization of cooking range capable of gasifying；(3) aerogenesis calorific value is on the low side, and gasification of biomass the most fully causes aerogenesis calorific value not reach routine use requirement.
To this end, inventor has invented filing date 2011.11.11, Patent No. CN201120444716.2, the gasification, and combustion cooking stove of entitled " a kind of Household biomass fuel-efficient stove ".It includes Bunker, the ash-falling chamber being provided with the gasification furnace core connected with Bunker below Bunker, connecting under gasification furnace core and with gasification furnace core, and the vigorous fire kitchen range connected by conduit it is provided with in ash-falling chamber side, wherein Bunker include the warehouse of upper and lower opening, feed bin lid on warehouse upper opening, at the air inlet pipe of warehouse surrounding and smoke exhaust pipe, it is characterized in that the cincture build-up of air nozzle that described gasification furnace core includes the aditus laryngis connected with Bunker lower opening, is provided with at the minimum position of aditus laryngis, and the gasification reactor chamber in the middle part of gasification furnace core；Described cincture build-up of air nozzle is arranged on aditus laryngis for tilting 45 degree, it is additionally provided with to the blower fan around build-up of air nozzle air inlet on described cincture build-up of air nozzle side, the water tank of the waste heat utilizing gasification furnace core gasification reaction it is provided with in gasification furnace core periphery, and between water tank and gasification furnace core, it being provided with spiral heat exchanger fin, described ash-falling chamber includes ash-pan；Described warehouse lower opening is provided with and controls fuel whereabouts and pieced together the fuel door making fuel and gasification reactor chamber intercept the temperature reducing Bunker by two sectors.But in the follow-up development of inventor, it has been found that there is many defects: single blower fan makes cooking stove general power be difficult to reach the requirement of life routine use；There are some defects in the structure design of gasification furnace core, cause gasification furnace core poor thermal insulation property, anti-poor performance of expanding with heat and contract with cold, gasification is not exclusively, gasification furnace core internal temperature is not high enough, tar can not fully occur cracking reaction, tar to fail the defects such as whole removings, causes the biomass fuel aerogenesis such as fuel wood and straw to stablize undesirable；Often having foreign body during use, such as stone, iron nail, also the coking block of ashes, the aperture of fire grate does not passes through at all, and the time one is long, and gasification furnace is unstable with regard to aerogenesis, loses efficacy the most completely；Actually used inconvenience, hinders its popularization and application.
To this end, technical scheme is improved by inventor, Application No. 201510072597.5, the application for a patent for invention of entitled " a kind of gasifying range for biological substance ".Its main technical schemes is: Bunker top is respectively smoke evacuation room and material outlet pumping chamber；Feed bin lid it is provided with in the middle of material outlet pumping chamber；Being provided with exhaust gases passes between water tank and combustion chamber, gasification furnace core connects with Bunker and ash-falling chamber respectively, is provided with band and trembles the infundibulate fire grate of apparatus for ash and mobile gate between gasification furnace core and ash-falling chamber；Being provided with heat-insulation layer between the inside and outside wall of gasification furnace core, the inwall of the gasification reactor chamber in gasification furnace core is the telescoping tube of retractable, and above gasification reactor chamber, sidewall is provided with air nozzle, is provided with igniter in heat-insulation layer.Its advantage is: compact conformation, and gasification reaction temperature is up to 1200 degree, and the liter startup temperature time is short, and igniting is convenient, and aerogenesis is efficient；Heating water tank can produce hot water, also the tar being mixed in biological fuel gas be removed, energy-conserving and environment-protective, improve the service life of relevant utensil；Ashes or the coking block of removing accumulation are convenient and swift.
Aforementioned two patent applications can be good at meeting domestic and low-power commercial scene on small oven, and technology has the highest practical value.But along with gasification furnace expansion in terms of commercial Application, biological fuel gas as produced with gasification furnace replaces in natural gas boiler, existing technology there is also some defects in scene useful industrially: (1) is although solving tar problem, but charging is not carried out automatization, taking the most when industrial aspect, labour cost is high；(2) combustion chamber ash discharge divides and can not realize automatization, it is difficult to and industrial automation is connected；(3) ash, dust content height in gasification gas, combustion gas is the purest, inadequate clean environment firendly, it is impossible to meets long-distance sand transport and the internal combustion engine power generation requirements of combustion gas, is not suitable for industrial large-scale use；(4) gasification reaction UTILIZATION OF VESIDUAL HEAT IN is abundant not, and the heat of high temperature in gasification gas does not make full use of.
Summary of the invention
For solving existing ash discharge dedusting system device and use the biomass gasification burning system of this device to there is drawbacks described above, the present invention provides a kind of ash excellent, that safety, aerogenesis are clean, operation and maintenance is convenient, automaticity is high rational in infrastructure to slag tap dedusting dress system and use the dedusting of slagging tap of this ash to fill the biomass gasification burning system of system.
For achieving the above object, the ash that the present invention takes slag tap dedusting dress system and use this ash slag tap dedusting dress system biomass gasification burning system schema respectively:
(1), the ash discharge of a kind of biomass gasification burning system is slagged tap dust pelletizing system, it is characterized in that: ash discharge dust pelletizing system of slagging tap includes that infundibulate ash sieves, it is located at bottom infundibulate ash sieve and the movable fire grate opened, it is located at the ash bucket below fire grate, and the helix transporting device discharged by the ashes in ash bucket.Helix transporting device can convenient and practical automatic business processing ashes, it is discharged from ash bucket；Bulk ashes or other block can disposably be cleared up away from infundibulate ash sieves by fire grate.
As the explanation of such scheme, aforementioned ash discharge dust pelletizing system of slagging tap also includes driving infundibulate ash sieve to make the eccentric screen apparatus for ash of horizontal screen ash action, and eccentric screen apparatus for ash includes supporting seat, eccentric, power transmission shaft, sieve ash motor；Power transmission shaft is arranged on support seat by bearing, power transmission shaft is driven rotation by sieving ash motor, eccentric is located at power transmission shaft upper end, aforementioned infundibulate ash sieve has top edge to be circumferentially with uniform 3 ~ 6 sieve ash seats, the quantity identical match of the quantity of power transmission shaft and eccentric seat grey with sieve, eccentric is provided with the short axle of bias of deviation power transmission shaft axle center certain distance, and eccentric short axle is connected with sieve ash seat by bearing.Being shaken by bias, the ash in can being sieved by infundibulate ash is the most fully trembled down, prevents from blocking infundibulate ash sieve, affects gasification reaction.
As the improvement of such scheme, aforementioned drive axle is provided with sprocket wheel, is connected by chain between each sprocket wheel.Can practical each power transmission shaft synchronous interaction, infundibulate ash sieve tremble ash evenly.
Further illustrating as such scheme, aforementioned fire grate is provided with the gear-linked system controlling fire grate folding, and gear-linked system is mainly made up of the left gear being connected with fire grate and right gear, cylinder/oil cylinder；Left gear and right gear intermesh linkage, and right gear is connected with cylinder/oil cylinder.Cylinder/oil cylinder is controlled, it is possible to achieve bulk ashes or other block are disposably cleared up away from infundibulate ash sieves by automatization by control system.
Further illustrating as such scheme, said spiral conveyer device includes the blast tube communicated with ash bucket side, the conveying pipe being provided with elongate slot below blast tube, and what conveying pipe was middle is provided with screw conveyor shaft, and ash discharge motor；Screw conveyor shaft periphery is provided with the helical blade of ash-slag delivery, and the end of screw conveyor shaft is located at by ash discharge motor.Screw conveyor shaft is rotated by ash discharge motor, helical blade produce axial force, can convenient and practical automatic business processing ashes, it is discharged from ash bucket.
Further illustrating as such scheme, aforementioned ash discharge dust pelletizing system of slagging tap also includes that dedusting cooling system, dedusting cooling system include two or more cyclone separator, the air-introduced machine that cyclone separator is connected, and ash fractional precipitation pond；The outlet of cyclone separator bottom extend into ash fractional precipitation pond；Cyclone separator periphery is provided with cooling water jacket, is connected with ash fractional precipitation pond bottom cooling water jacket, if temperature lowering water set is arranged over spraying mouth with whirlwind air inlet solid carbon dioxide in the same direction, water is sprayed mouth and is connected with ash fractional precipitation pond by water curtain water circulating pump.Automatically carry out purifying, lowering the temperature by the gasification gas that system produces herein.Simultaneously work as the explosion-proof of whole gasification gas system, when in body of heater and pipeline, oxygen proportion reaches finite concentration, it is possible to implosion phenomenon, threatening safety in production greatly, when implosion occurs, pressure outlet below cyclone separator is delivered to precipitate pond, water can arrange along with pressure, gas leakage, pressure releases, dangerous releasing.
Further illustrating as such scheme, aforementioned ash discharge dust pelletizing system of slagging tap also includes hot-water heating system, and hot-water heating system includes furnace water jacket and hot water conveying pipe；Furnace water jacket is arranged around the gasification furnace core of biomass gasification burning system and infundibulate ash sieve matchingly, and hot water conveying pipe is connected with furnace water jacket and ash fractional precipitation pond respectively；The support seat of described eccentric screen apparatus for ash is arranged on furnace water jacket, constituting for two-layer pipe in the middle of described power transmission shaft, form two waterway channels, waterway channel communicates with the end supporting seat, being provided with the pipe spreader passed for power transmission shaft in furnace water jacket, the upper and lower two ends of pipe spreader are provided with bearing；Pipe spreader bottom is provided with cooling jacket, is sequentially provided with intake antrum and water chamber in the middle of cooling jacket, and intake antrum is provided with water inlet, and water chamber is provided with outlet；Intake antrum and water chamber are provided with and are connected the rubber seal separated with drive shaft seal.
(2), a kind of biomass gasification burning system, including feed system, gasification system, ash discharge slags tap dust pelletizing system, feed system and coordinate to control the control system of each system work；Feed system, gasification system and ash discharge dust pelletizing system of slagging tap is linked in sequence from top to bottom；It is characterized in that: ash discharge dust pelletizing system of slagging tap is that ash discharge described in scheme any one of aforementioned schemes () is slagged tap dust pelletizing system.The work of each composition system is controlled, it is possible to achieve feed, tremble the full-automatic process of ash, purification gasification gas, cooling hot water, save artificial, be suitable for industrial application by control system.
Further illustrating as such scheme, aforementioned gasification system, mainly by gasification furnace core, is located at the material outlet on gasification furnace core top, and is provided the aerator composition of air for gasification furnace core.Produce gasification gas herein.
Further illustrating as such scheme, aforementioned feed system includes feed bin and automatic feeder, and automatic feeder is bucket type feeding apparatus hoisting, screw feeding device, chain bucket continuous feeding device or belt continuous feeding device.Automatic feed mode is versatile and flexible, selects flexibly because of needs.
From the foregoing, it will be observed that the present invention mainly has the advantage that scientific structure and compact, space makes full use of, and fully realizes the automatization of links, and automatization level is high, easy to use, and aerogenesis is efficient, and air outlet temperature is low, gas-tight activating QI implosion, safe and reliable；Effectively ash and the dust of gasification gas are removed, significantly reduce the pollution to environment, improve the service life of relevant utensil, energy-conserving and environment-protective；Ash or the coking block of removing accumulation are convenient and swift；Effect is actively promoted to expanding the application using reproducible biomass energy.
Accompanying drawing explanation
Fig. 1 is the system structure schematic diagram of the present invention, and the arrow in figure is gasification gas or the flow direction of water.
Dust pelletizing system schematic top plan view that Fig. 2 is the gasification system of Fig. 1 and ash discharge is slagged tap.
Fig. 3 is infundibulate ash sieve and the positional structure schematic diagram of eccentric screen apparatus for ash of Fig. 1.
Fig. 4 is the complete plan structure schematic diagram of Fig. 3.
Fig. 5 is the infundibulate ash sieve in Fig. 1 and the positional structure schematic diagram of fire grate.
Fig. 6 is the structural representation of the eccentric screen apparatus for ash of Fig. 3.
Fig. 7 is the structural representation of the dedusting cooling system of Fig. 1.
Drawing reference numeral illustrates: 1-gasification system, 2-feed system, and 3-ash discharge is slagged tap dust pelletizing system, 4-dedusting cooling system, 6-hot-water heating system；11-feed bin, 12-gasification furnace core, 14-aerator；
31-eccentric screen apparatus for ash, 32-fire grate, 33-ash bucket, 34-helix transporting device, 35-infundibulate ash sieves；311-supports seat, 312-power transmission shaft, 313-sieve ash motor, 314-sprocket wheel, 315-eccentric, 316-sieve ash seat, the eccentric short axle of 317-, 318-bearing；3161-waterway channel, 3162-pipe spreader, 3163-cooling jacket, 3164-intake antrum, 3165-water chamber, 3166-water inlet, 3167-outlet, 3168-rubber seal；321-left gear, 322-right gear, 323-cylinder/oil cylinder；341-blast tube, 342-carries pipe, 343-screw conveyor shaft, 344-helical blade, 345-ash discharge motor；
41-cyclone separator, 42-air-introduced machine, 43-ash fractional precipitation pond, 44-furnace water jacket, 45-hot water conveying pipe；411-lowers the temperature water jacket, and 412-whirlwind air inlet, 413-water sprays mouth, 414-water curtain water circulating pump.
Detailed description of the invention
Below in conjunction with the accompanying drawings and preferred embodiment, the present invention and Advantageous Effects thereof are further elaborated.
(1) ash discharge of biomass gasification burning system is slagged tap the detailed description of the invention of dust pelletizing system:
See Fig. 1 ~ Fig. 6, the ash discharge of biomass gasification burning system slag tap dust pelletizing system include infundibulate ash sieve 35, it is located at bottom infundibulate ash sieve 35 and the movable fire grate 32 opened, is located at the ash bucket 33 below fire grate 32, and the helix transporting device 34 discharged by the ashes in ash bucket 33.
Seeing Fig. 3 ~ Fig. 6, wherein, ash discharge is slagged tap the eccentric screen apparatus for ash 31 that dust pelletizing system 3 also includes driving infundibulate ash sieve 35 to make horizontal screen ash action, and eccentric screen apparatus for ash 31 includes supporting seat 311, eccentric 315, power transmission shaft 312, sieve ash motor 313；Power transmission shaft 312 is arranged on support seat 311 by bearing 318, power transmission shaft 312 is driven rotation by sieve ash motor 313, eccentric 315 is located at power transmission shaft 312 upper end, infundibulate ash sieve 35 has top edge to be circumferentially with uniform 3 ~ 6 sieve ash seats 316, the quantity identical match of the quantity of power transmission shaft 312 and eccentric 315 seat 316 grey with sieve, eccentric 315 is provided with the short axle of bias 317 of deviation power transmission shaft 312 axle center certain distance, and eccentric short axle 317 is connected with sieve ash seat 316 by bearing 318.Power transmission shaft 312 is provided with sprocket wheel 314, is connected by chain between each sprocket wheel 314.
See Fig. 1, it is preferable that fire grate 32 is provided with the gear-linked system controlling fire grate 32 folding, and gear-linked system is mainly made up of the left gear 321 being connected with fire grate 32 and right gear 322, cylinder/oil cylinder 323；Left gear 321 and right gear 322 intermesh linkage, and right gear 322 is connected with cylinder/oil cylinder 323.
Seeing Fig. 2, it is preferable that helix transporting device 34 includes the blast tube 341 communicated with ash bucket 33 side, the conveying pipe 342 being provided with elongate slot below blast tube 341, what conveying pipe 342 was middle is provided with screw conveyor shaft 343, and ash discharge motor 345；Screw conveyor shaft 343 periphery is provided with the helical blade 344 of ash-slag delivery, and the end of screw conveyor shaft 343 is located at by ash discharge motor 345.
Seeing Fig. 7, ash discharge dust pelletizing system 3 of slagging tap also includes that dedusting cooling system 4, dedusting cooling system 4 include two or more cyclone separator 41, and air-introduced machine 42 that cyclone separator 41 is connected is, and ash fractional precipitation pond 43；The outlet of cyclone separator 41 bottom extend into ash fractional precipitation pond 43；Cyclone separator 41 periphery is provided with cooling water jacket 411, it is connected with ash fractional precipitation pond 43 bottom cooling water jacket 411, if cooling water jacket 411 is arranged over spraying mouth 413 with whirlwind air inlet 412 solid carbon dioxide in the same direction, water is sprayed mouth 413 and is connected with ash fractional precipitation pond 43 by water curtain water circulating pump 414.
Seeing Fig. 1, Fig. 3 and Fig. 7, ash discharge dust pelletizing system 3 of slagging tap also includes that hot-water heating system 6, hot-water heating system 6 include furnace water jacket 44 and hot water conveying pipe 45342；Furnace water jacket 44 is matchingly around gasification furnace core 12 and infundibulate ash sieve 35 setting of biomass gasification burning system, and hot water conveying pipe 45342 is connected with furnace water jacket 44 and ash fractional precipitation pond 43 respectively；The support seat 311 of described eccentric screen apparatus for ash 31 is arranged on furnace water jacket 44, constitute for two-layer pipe in the middle of described power transmission shaft 312, form two waterway channels 3161, waterway channel 3161 communicates with the end supporting seat 311, being provided with the pipe spreader 3162 passed for power transmission shaft 312 in furnace water jacket 44, pipe spreader about 3162 two ends are provided with bearing 318；Pipe spreader 3162 bottom is provided with in the middle of cooling jacket 3163, cooling jacket 3163 and is sequentially provided with intake antrum 3164 and water chamber 3165, and intake antrum 3164 is provided with water inlet 3166, and water chamber 3165 is provided with outlet 3167；Intake antrum 3164 and water chamber 3165 are provided with and are tightly connected the rubber seal 3168 of separation with power transmission shaft 312.
By above-mentioned embodiment, in that context it may be convenient to realize infundibulate ash sieve 35 ashes or other block from infundibulate ash sieve 35 automatically clear up away, practicality ash discharge slag tap fill automation mechanized operation.
(2) detailed description of the invention of biomass gasification burning system:
Seeing Fig. 1 ~ Fig. 7, biomass gasification burning system includes feed system 2, gasification system 1, and ash discharge is slagged tap dust pelletizing system 3, feed system 2 and coordinate to control the control system of each system work；Feed system 2, gasification system 1 and ash discharge dust pelletizing system 3 of slagging tap is linked in sequence from top to bottom；Ash discharge dust pelletizing system 3 of slagging tap is slagged tap dust pelletizing system 3 for the ash discharge described in embodiment one.
Seeing Fig. 1, gasification system 1 is main by gasification furnace core 12, is located at the feed bin 11 mouthfuls on gasification furnace core 12 top, and provides the aerator 14 of air to form for gasification furnace core 12.
Seeing Fig. 1, feed system 2 includes feed bin 11 and automatic feeder, and automatic feeder is bucket type feeding apparatus hoisting, screw feeding device, chain bucket continuous feeding device or belt continuous feeding device.
The work process of biomass gasification burning system is as follows: biomass gasification burning system passes through feed system 2, automatically and continuously biomass fuel is transported in feed bin 11, fuel drops to carry out in gasification furnace core 12 combustion gasification naturally by gravity in feed bin 11, aerator 14 sprays oxygen supply in gasification furnace core 12, then in gasification furnace core 12 under the high velocity air oxygen supply of injection, the upper bit of gasification furnace core 12 forms the zoneofoxidation of high temperature, simultaneous oxidation district is under conditions of quantitatively feeding oxidant, and oxidant runs out of substantially；The gas that reaction produces carries out reduction reaction under zoneofoxidation with pyrocarbon layer, thus generates biological mass combustable gas activating QI.Owing to, under the absorption of pyrocarbon layer and catalytic action, the tar generated in zoneofoxidation and above cracking zone is decomposed totally in zoneofoxidation and reducing zone, and in the process, multiple chemical reaction is carried out, and tar destruction is particularly thoroughly formed gasification gas simultaneously.The ash constantly produced in redox reaction enters ash discharge and slags tap in dust pelletizing system 3, and little carbon granules and ash, by crossing the aperture of infundibulate ash sieve 35, are fallen in ash bucket 33.Under specific circumstances, non-combustible impurity in ash and fuel can lump, the most just processed by fire grate 32, fire grate 32 suitably can be opened the cycle because the difference of operating mode sets to fire grate 32, when fire grate 32 is opened, the impurity of bulk and coking block drop in ash bucket 33, and whole ash and thick coking block are discharged outside body of heater by helix transporting device 34.Combustion gas through ash bucket 33 and blast tube 341 time, part of ash dust can take in cyclone separator 41 along with the air-flow of gasification gas, ash dust falls again, water sprays mouth 413 and sprays water in cyclone separator 41, moisture film is formed at cyclone separator 41 inwall, the dust and the carbon distribution that fall are washed in ash fractional precipitation pond 43 by Water warfare, and last clean gasification gas combustion gas drains into external pipe to using gas end through air-introduced machine 42.
Book and specific embodiment do not constitute any restriction to the present invention according to the above description, the invention is not limited in detailed description of the invention disclosed and described above, some amendments and the deformation to the present invention, it should also fall in the scope of the claims of the present invention.
Claims (10)
1. the ash discharge of a biomass gasification burning system is slagged tap dust pelletizing system, it is characterized in that: ash discharge dust pelletizing system of slagging tap includes that infundibulate ash sieves, it is located at bottom infundibulate ash sieve and the movable fire grate opened, it is located at the ash bucket below fire grate, and the helix transporting device discharged by the ashes in ash bucket.
2. the ash discharge of biomass gasification burning system as claimed in claim 1 is slagged tap dust pelletizing system, it is characterized in that: described ash discharge dust pelletizing system of slagging tap also includes driving infundibulate ash sieve to make the eccentric screen apparatus for ash of horizontal screen ash action, eccentric screen apparatus for ash includes supporting seat, eccentric, power transmission shaft, sieve ash motor；Power transmission shaft is arranged on support seat by bearing, power transmission shaft is driven rotation by sieving ash motor, eccentric is located at power transmission shaft upper end, described infundibulate ash sieve has top edge to be circumferentially with uniform 3 ~ 6 sieve ash seats, the quantity identical match of the quantity of power transmission shaft and eccentric seat grey with sieve, eccentric is provided with the short axle of bias of deviation power transmission shaft axle center certain distance, and eccentric short axle is connected with sieve ash seat by bearing.
3. the ash discharge of biomass gasification burning system as claimed in claim 2 is slagged tap dust pelletizing system, it is characterized in that: described power transmission shaft is provided with sprocket wheel, is connected by chain between each sprocket wheel.
4. the ash discharge of biomass gasification burning system as claimed in claim 3 is slagged tap dust pelletizing system, it is characterized in that: described fire grate is provided with the gear-linked system controlling fire grate folding, and gear-linked system is mainly made up of the left gear being connected with fire grate and right gear, cylinder/oil cylinder；Left gear and right gear intermesh linkage, and right gear is connected with cylinder/oil cylinder.
5. the ash discharge of biomass gasification burning system as claimed in claim 4 is slagged tap dust pelletizing system, it is characterized in that: described helix transporting device includes the blast tube communicated with ash bucket side, the conveying pipe being provided with elongate slot below blast tube, what conveying pipe was middle is provided with screw conveyor shaft, and ash discharge motor；Screw conveyor shaft periphery is provided with the helical blade of ash-slag delivery, and the end of screw conveyor shaft is located at by ash discharge motor.
6. the ash discharge of biomass gasification burning system as claimed in claim 5 is slagged tap dust pelletizing system, it is characterized in that: described ash discharge dust pelletizing system of slagging tap also includes dedusting cooling system, dedusting cooling system includes two or more cyclone separator, the air-introduced machine that cyclone separator is connected, and ash fractional precipitation pond；The outlet of cyclone separator bottom extend into ash fractional precipitation pond；Cyclone separator periphery is provided with cooling water jacket, is connected with ash fractional precipitation pond bottom cooling water jacket, if temperature lowering water set is arranged over spraying mouth with whirlwind air inlet solid carbon dioxide in the same direction, water is sprayed mouth and is connected with ash fractional precipitation pond by water curtain water circulating pump.
7. the ash discharge of biomass gasification burning system as claimed in claim 6 is slagged tap dust pelletizing system, it is characterized in that: described ash discharge dust pelletizing system of slagging tap also includes hot-water heating system, and hot-water heating system includes furnace water jacket and hot water conveying pipe；Furnace water jacket is arranged around the gasification furnace core of biomass gasification burning system and infundibulate ash sieve matchingly, and hot water conveying pipe is connected with furnace water jacket and ash fractional precipitation pond respectively；The support seat of described eccentric screen apparatus for ash is arranged on furnace water jacket, constituting for two-layer pipe in the middle of described power transmission shaft, form two waterway channels, waterway channel communicates with the end supporting seat, being provided with the pipe spreader passed for power transmission shaft in furnace water jacket, the upper and lower two ends of pipe spreader are provided with bearing；Pipe spreader bottom is provided with cooling jacket, is sequentially provided with intake antrum and water chamber in the middle of cooling jacket, and intake antrum is provided with water inlet, and water chamber is provided with outlet；Intake antrum and water chamber are provided with and are connected the rubber seal separated with drive shaft seal.
8. a biomass gasification burning system, including feed system, gasification system, ash discharge slags tap dust pelletizing system, feed system and coordinate to control the control system of each system work；Feed system, gasification system and ash discharge dust pelletizing system of slagging tap is linked in sequence from top to bottom；It is characterized in that: described ash discharge dust pelletizing system of slagging tap is that the ash discharge described in any one of claim 1 ~ 7 is slagged tap dust pelletizing system.
9. biomass gasification burning system as claimed in claim 8, is characterized in that: described gasification system, mainly by gasification furnace core, is located at the material outlet on gasification furnace core top, and is provided the aerator composition of air for gasification furnace core.
10. biomass gasification burning system as claimed in claim 8, it is characterized in that: described feed system includes feed bin and automatic feeder, automatic feeder is bucket type feeding apparatus hoisting, screw feeding device, chain bucket continuous feeding device or belt continuous feeding device.
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Application publication date: 20160810 |