CN2913363Y - Solid and liquid composite bed biomass gasification furnace - Google Patents
Solid and liquid composite bed biomass gasification furnace Download PDFInfo
- Publication number
- CN2913363Y CN2913363Y CNU2006200974067U CN200620097406U CN2913363Y CN 2913363 Y CN2913363 Y CN 2913363Y CN U2006200974067 U CNU2006200974067 U CN U2006200974067U CN 200620097406 U CN200620097406 U CN 200620097406U CN 2913363 Y CN2913363 Y CN 2913363Y
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- China
- Prior art keywords
- inner chamber
- high temperature
- bed
- fluidized
- gasifier
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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
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Processing Of Solid Wastes (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
The utility model relates to a fixed and fluidized compound bed biomass gasifier. The inner chamber of the gasifier is a hollow cylinder, a cloth grid plate (3) with an inclined plane is disposed at the upper part of the inner chamber of the gasifier, a high temperature thermal storage packing layer (6) is disposed at the lower part of the inner chamber, a circular thermal insulation dust collecting chamber (9) is disposed at the periphery of the inner chamber, a high temperature CO2 gasifying agent inlet (4) is disposed at the side face of the inner chamber. The fixed and fluidized compound bed biomass gasifier uses high temperature CO2 as gasifying agent, so as to obtain high heating value and high gas generation yield. The main components of the pyrolysis gas (CO, H2) can be adjusted as required. The high temperature thermal storage packing layer can improve the carbon conversion rate (88% without catalyst). The utility model has both characteristics of fixed bed and fluidized bed, can make the fluidized biomass completely contact with high temperature CO2 in the gasifier to perform flash pyrolysis.
Description
Technical field
The utility model belongs to the multiple-hearth biomass gasifying furnace field of flowing admittedly.
Background technology
Under the high temperature, utilizing vaporized chemical to make biomass is that plant material or other carbonaceous solids material transition of timber and so on becomes the thermochemical process of inflammable gas to be called gasification, and just solid or liquid fuel are converted into the thermochemical process of geseous fuel.In gasification installation, free oxygen or carry out chemical reaction in conjunction with the carbon in oxygen and the fuel generates inflammable gas.Utilize the method for gasification that wood material, agricultural crop straw or organic property trade waste are changed into geseous fuel, not only aspect save energy, be significant, and the protection environment, prevent aspect the pollution also significant.
The gasification of biomass is exactly to utilize airborne oxygen or oxygen carrier the fixed carbon in the biomass to be oxidized to the process of inflammable gas as vaporized chemical, adopt different material, be blown into gas (air, oxygen, water vapor) or service temperature, equipment, the pyrolysis pneumatolytic that is produced divides also different.
Biomass gasifying furnace commonly used at present mainly contains fixed-bed gasification furnace and fluidized-bed gasification furnace.Gasification reaction in the fixed-bed gasification furnace carries out in a relative immobilized bed, finishes drying, pyrolysis, oxidation and reduction process successively, and biomass material is transformed into inflammable gas.Its feature is to have one to hold the burner hearth of raw material and the fire grate of a support reaction bed of material.According to the difference of air flow line, fixed-bed gasification furnace can be divided into updraft type vapourizing furnace and downdraft vapourizing furnace again.Fixed-bed gasification furnace is mainly used in the component of biomass gasification for gas supplying of rural area.The main weak point of fixed bed is to be easy to generate tar, and productivity is also not high enough.
Fluidized-bed gasification furnace generally has a hot sand bed, promptly in fluidized-bed gasification furnace, put into sand as fluidizing medium, at first with casting bed heating, the material that enters fluidized-bed gasification furnace afterwards just can be in the enterprising promoting the circulation of qi reaction of hot sand bed, and keeps the temperature of fluidized-bed by reaction heat.The fully contact of material particles, sand, vaporized chemical (air) is heated evenly in fluidized-bed gasification furnace, is " boiling " state in stove, and gasification reaction speed is fast, the factor of created gase height, and its gasification reaction carries out on the constant temperature bed.Fluidized-bed gasification furnace is divided into bubbling bed gasification furnace, circle fluidized-bed gasification furnace, double-current bed gasification furnace and carries bed gasification furnace.Fluidized-bed gasification furnace is applicable to large-scale gasification system, as the gasifying biomass power generation system.Because fluidized-bed will contain N with air as vaporized chemical in the aerogenesis
2Higher, thereby gas heating value is lower.
Summary of the invention
The technical problems to be solved in the utility model is that fixed bed and fluidized-bed are combined, and a kind of outer heat supply, easy to operate, the stay-in-grade multiple-hearth biomass gasifying furnace that flows admittedly of giving vent to anger are provided.
The utility model solves the problems of the technologies described above with following technical scheme: at inner chamber is the cloth screen (3) that the band inclined-plane is arranged at the top of the vapourizing furnace inner chamber (5) of open circles tubular, high-temperature heat accumulation packing layer (6) is arranged at the bottom, annular thermal insulating dust-collecting cavity (9) is arranged on every side, and there is high temperature CO the side
2Vaporized chemical import (4).
Use the solid stream multiple-hearth biomass gasifying furnace of this gasifying biomass, with high temperature CO
2Be vaporized chemical, can obtain high heating value and high yield gas rate.Inflammable gas main component (CO, H
2) can regulate as required.The pyrolysis gas that produces both can be used as domestic fuel, can be used as industrial raw material (CO, H again
2).Built-in high-temperature heat accumulation packing layer makes the efficiency of carbon conversion height, is issued to 88% in the condition of catalyst-free.Have the multiple-hearth inflammable gas producer of fixed bed and fluidized-bed characteristics concurrently, make biomass in stove, be fluidization and high temperature CO
2Fully the flash cracking is carried out in contact.
Description of drawings
Fig. 1 is the structural representation that the utility model flows the multiple-hearth biomass gasifying furnace admittedly.
Embodiment
At inner chamber be the open circles tubular vapourizing furnace inner chamber 5 above charging equipment loading hopper 1 and helical screw feeder 2 are arranged; The cloth screen 3 on band inclined-plane is arranged at the top of vapourizing furnace inner chamber 5, and high-temperature heat accumulation packing layer 6 is arranged at the bottom, and annular thermal insulating dust-collecting cavity 9 is arranged on every side, and there is high temperature CO the side
2Vaporized chemical import 4.
Admittedly flow multiple-hearth biomass gasifying furnace when work, the biomass fines is pushed opening for feed by helical screw feeder 2 and enters vapourizing furnace inner chamber 5, and descending along the cloth screen 3 that tilts, in the way with high temperature CO from inlet mouth 4
2The destructive distillation pyrolytic reaction takes place in gas contact, and the pellet after the carbonization then falls by cloth screen 3 holes, continues and high temperature CO from inlet mouth 4
2Gas is the reaction of fluidization generation flash gasification, and then with the high-temperature heat accumulation packing layer 6 continuation gasification reactions of gasification air-flow through the body of heater bottom, through the reaction of aforementioned three phases, the biomass fines of going into stove is able to abundant gasification to unreacted carbon granules.The gasification gas that generates enters insulation dust-collecting cavity 9 in the body of heater outside through flap 7, by the mass force and the action of gravity of dust-contained airflow, with the ash content dust collection of failing to react in furnace bottom ash bucket 8, simultaneously also to playing insulation effect in the body of heater.The inflammable gas that gasification reaction obtains then upwards flows along insulation dust-collecting cavity 9, by outlet 11 outputs, reaches the effect of Purge gas after the air outlet enters cyclonic separator 10 to carry out gas solid separation.Use the solid stream multiple-hearth biomass gasifying furnace of this gasifying biomass, its accumulation of heat packing layer is tending towards fully the gasification of biological pyrolytic carbon, and the tar content of giving vent to anger is extremely low; Owing to adopt outer heat-supplying mode, environment is easy to control in the furnace chamber, is convenient to system operation and the steady quality of giving vent to anger.Vaporized chemical only is CO
2And H
2O can obtain the higher combustible gas of calorific value.The insulation dust-collecting cavity in the body of heater outside, with the ash content dust collection of failing to react in the furnace bottom ash bucket, simultaneously also to playing insulation effect in the body of heater and further finishing the gasification reaction that contains the charcoal soot particle.
Claims (1)
1. one kind is flowed the multiple-hearth biomass gasifying furnace admittedly, it is characterized in that at inner chamber be the cloth screen (3) that the band inclined-plane is arranged at the top of the vapourizing furnace inner chamber (5) of open circles tubular, high-temperature heat accumulation packing layer (6) is arranged at the bottom, and annular thermal insulating dust-collecting cavity (9) is arranged on every side, and there is high temperature CO the side
2Vaporized chemical import (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200974067U CN2913363Y (en) | 2006-06-21 | 2006-06-21 | Solid and liquid composite bed biomass gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200974067U CN2913363Y (en) | 2006-06-21 | 2006-06-21 | Solid and liquid composite bed biomass gasification furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2913363Y true CN2913363Y (en) | 2007-06-20 |
Family
ID=38167961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200974067U Expired - Fee Related CN2913363Y (en) | 2006-06-21 | 2006-06-21 | Solid and liquid composite bed biomass gasification furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2913363Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102827641A (en) * | 2012-09-10 | 2012-12-19 | 庆华集团新疆和丰能源化工有限公司 | Coal gasified pyrolyzing furnace |
| CN101665704B (en) * | 2008-07-25 | 2013-05-15 | 许永捷 | Rapid and large-scale method for producing biofuel |
| CN104033889A (en) * | 2014-05-28 | 2014-09-10 | 山东科技大学 | Heat accumulating type biomass gasification combustion device and production process thereof |
| CN106482116A (en) * | 2016-12-12 | 2017-03-08 | 北京神雾环境能源科技集团股份有限公司 | Heat accumulating type deflection plate electronic gas refuse pyrolysis plant and method for pyrolysis |
-
2006
- 2006-06-21 CN CNU2006200974067U patent/CN2913363Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101665704B (en) * | 2008-07-25 | 2013-05-15 | 许永捷 | Rapid and large-scale method for producing biofuel |
| CN102827641A (en) * | 2012-09-10 | 2012-12-19 | 庆华集团新疆和丰能源化工有限公司 | Coal gasified pyrolyzing furnace |
| CN102827641B (en) * | 2012-09-10 | 2014-07-23 | 庆华集团新疆和丰能源化工有限公司 | Coal gasified pyrolyzing furnace |
| CN104033889A (en) * | 2014-05-28 | 2014-09-10 | 山东科技大学 | Heat accumulating type biomass gasification combustion device and production process thereof |
| CN104033889B (en) * | 2014-05-28 | 2016-06-29 | 山东科技大学 | The biomass gasification fired device of heat accumulating type and production technology thereof |
| CN106482116A (en) * | 2016-12-12 | 2017-03-08 | 北京神雾环境能源科技集团股份有限公司 | Heat accumulating type deflection plate electronic gas refuse pyrolysis plant and method for pyrolysis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |