CN201990639U - Biomass gasification system for two-segment circulating fluidized bed - Google Patents
Biomass gasification system for two-segment circulating fluidized bed Download PDFInfo
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- CN201990639U CN201990639U CN2011200019620U CN201120001962U CN201990639U CN 201990639 U CN201990639 U CN 201990639U CN 2011200019620 U CN2011200019620 U CN 2011200019620U CN 201120001962 U CN201120001962 U CN 201120001962U CN 201990639 U CN201990639 U CN 201990639U
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- biomass
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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
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Abstract
The utility model relates to a biomass gasification system for a two-segment circulating fluidized bed, which comprises a fluidized bed gasification furnace, a feed bin, a feeder, an ash removal device fan and an ash hopper and further comprises a second feeder; the fluidized bed gasification furnace is provided with a second inlet; an outlet of the ash hopper is connected with the second feeder; an outlet of the second feeder is connected with an air supply inlet of a combustor; an outlet of the combustor is connected with a second inlet of the fluidized bed gasification furnace; and the biomass coke collected by the ash hopper is fed into the air supply inlet by the second feeder and enters into a cyclone combustor for pyrolysis under the action of wind force to supplement the heat to the fluidized bed gasification furnace. The biomass gasification system ensures that the biomass powder has good pyrolysis effect in the gasification furnace and completely pyrolyzes the fixed carbon in the biomass coke through the cyclone combustion chamber; and the heat of the fixed carbon is circularly provided for the fluidized bed gasification furnace for pyrolysis. Therefore, the waste of biomass powder heat energy can not be caused, and the thermal efficiency of the biomass gasification system can be effectively improved.
Description
Technical field
The utility model belongs to energy preparation field, specifically relates to a kind of combustion equipment of gasifying biomass.
Background technology
Along with the continuous development of world economy, the energy and environmental problem become increasingly conspicuous.The human main energy sources of using at present has 3 kinds of oil, Sweet natural gas and coals.According to the International Energy Agency statistics, these 3 kinds of energy have only respectively about 35 years, 50 years and 240 years for the time limit of human exploitation on the earth.Fossil resources such as coal, oil exhaust the power supply constant tension day by day on the one hand; On the other hand, the excessive use of fossil resource has caused serious environmental problem day by day.Therefore, develop and seek new substitute energy and become the key subjects that human social must be solved in the new millennium.
Biomass energy is the sun power that is stored in by the photosynthesis of plant and sun power in the plant.According to estimates, the annual energy of storing of plant is equivalent to 10 times that world's main fuel consumes, and is less than 1% of its total amount as the utilization of the energy.Characteristics such as biomass material is because of having the volatility height, and carbon is active high, and N, S content are low, and ash content is low are a kind of fine fuel.By the biomass energy switch technology, can utilize this reproducible clean biomass energy efficiently, substitute fuel such as coal, oil and natural gas.
At present, utilize biomass material,, behind temperature or the high temperature pyrolysis, can extract bio-oil or biological fuel gas during it is carried out as straw, bagasse, rice chaff, sawdust, wood chip etc.
Studies show that the biomass powder that utilizes after the fragmentation is better as the pyrolysis effect of biomass gasifying furnace raw material, but for some existing biomass fluid bed gasification pyrolytic reactive systems, biomass powder stops the short time (being less than 2 seconds) and will be taken to by the high temperature carrier gas in the whirlwind ash handling equipment in 800 ℃ high-temperature gasification stove, this makes the biomass char of collecting at the whirlwind ash handling equipment reach 20～30%, this part biomass char is except containing 2% ash content, the fixed carbon that remaining mainly is in the biomass, the pyrolytic reaction generate energy owing to need just can take place in fixed carbon under hot conditions, still there is technology barrier in its secondary circulation utilization, cause the thermo-efficiency of vapourizing furnace on the low side, caused the wasting of resources.Therefore, how the fixed carbon with this part uses, and improves the thermo-efficiency of biomass gasifying furnace, remains the solution of technology.
The utility model content
In order to solve the problem that prior art exists, the utility model provides a kind of pyrolytic biomass material is not carried out secondary pyrolysis utilization, to improve the gasification system of thermo-efficiency.
In order to realize above purpose, the technical solution of the utility model is as follows: comprise fluidized-bed gasification furnace, and feed bin, feeding machine, the ash handling equipment blower fan, ash bucket also comprises second feeding machine, described fluidized-bed gasification furnace is provided with second inlet; The outlet of described ash bucket connects second feeding machine, and the outlet of second feeding machine is sent into mouth with the wind of burner and is connected, and the outlet of burner is connected with second inlet of fluidized-bed gasification furnace; The biomass char that ash bucket is collected is sent into mouth by second feeding machine input wind, and under the effect of wind-force, enters pyrolysis in the cyclone burner, is the fluidized-bed gasification furnace additional heat.
And then, described fluidized-bed gasification furnace second the inlet be positioned at first the inlet below.
Described second feeding machine is a screw feeder.
Described burner is a whirlwind type burner.
The utility model has guaranteed that biomass powder has good pyrolysis effect in vapourizing furnace, and by cyclone combustion chamber with the abundant pyrolysis of fixed carbon in the biomass char, utilize its heat circulation to offer the fluidized-bed gasification furnace pyrolysis again, therefore, can not cause the waste of biomass powder heat energy, can effectively improve the thermo-efficiency of gasification system.
Description of drawings
Fig. 1 is that the structure of the utility model gasification system is formed synoptic diagram.
Embodiment
Biomass gasification system is made up of feed bin 1, first screw feeder 2, fluidized-bed gasification furnace 3, whirlwind ash handling equipment 4, ash bucket 6, cyclone burner 8, second screw feeder 7, blower fan 9.The bottom of fluidized-bed gasification furnace 3 is provided with two inlets, promptly is first inlet and second inlet, and first inlet is on second inlet.First inlet of the bottom of fluidized-bed gasification furnace 3 connects first screw feeder 2, the upper end outlet of fluidized-bed gasification furnace 3 connects whirlwind ash handling equipment 4, the upper end of whirlwind ash handling equipment 4 connects gas line 5, and the lower end connects ash bucket 6, the outlet of ash bucket 6 connects second screw feeder 7, the outlet of second screw feeder 7 is sent into mouth with the wind of cyclone burner 8 and is connected, the outlet of cyclone burner 8 is connected with bottom second inlet of fluidized-bed gasification furnace 3, the bottom of fluidized gasification stove 3 connects blower fan 9 by airduct, and the wind of cyclone burner 8 send mouth to connect blower fan 9 by airduct.
The workflow of biomass gasification system is as follows: the biomass powder in the feed bin is sent into fluidized-bed gasification furnace by first screw feeder by first inlet, the pyrolysis under 800 ℃ of high temperature of biological pledge powder, and gasification reaction becomes biological fuel gas; The biological fuel gas of carrying biomass char secretly enters the whirlwind ash handling equipment, under the effect of whirlwind, biomass char is separated, and then is stored by ash bucket, and clean biological fuel gas is then supplied with kiln by gas line output and used; Utilize second screw feeder and by blower fan the biomass char wind in the ash bucket is fed into cyclone combustion chamber and carry out the secondary pyrolysis, the high-temperature fuel gas that pyrolysis obtains enters fluidized-bed gasification furnace, with additional heat.
Claims (5)
1. a two-part circulating fluidized bed biomass gasification system comprises fluidized-bed gasification furnace, feed bin, and charger, the ash handling equipment blower fan, ash bucket,
It is characterized in that: also comprise second feeding machine, described fluidized-bed gasification furnace is provided with second inlet;
The outlet of described ash bucket connects second feeding machine, and the outlet of second feeding machine is sent into mouth with the wind of burner and is connected, and the outlet of burner is connected with second inlet of fluidized-bed gasification furnace.
2. gasification system according to claim 1 is characterized in that, described fluidized-bed gasification furnace second the inlet be positioned at first the inlet below.
3. gasification system according to claim 2 is characterized in that, described second feeding machine is spiral feeding machine.
4. gasification system according to claim 2 is characterized in that, described burner is a whirlwind type burner.
5. gasification system according to claim 2 is characterized in that, described ash handling equipment is the cyclone type ash handling equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200019620U CN201990639U (en) | 2011-01-06 | 2011-01-06 | Biomass gasification system for two-segment circulating fluidized bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200019620U CN201990639U (en) | 2011-01-06 | 2011-01-06 | Biomass gasification system for two-segment circulating fluidized bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201990639U true CN201990639U (en) | 2011-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200019620U Expired - Fee Related CN201990639U (en) | 2011-01-06 | 2011-01-06 | Biomass gasification system for two-segment circulating fluidized bed |
Country Status (1)
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| CN (1) | CN201990639U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031155A (en) * | 2011-01-06 | 2011-04-27 | 广州迪森热能技术股份有限公司 | Two-section circulating fluidized bed biomass gasification system |
| CN102528068A (en) * | 2012-01-16 | 2012-07-04 | 中国科学院过程工程研究所 | Device and method for preparing superfine nickel powder |
| CN102977928A (en) * | 2012-10-11 | 2013-03-20 | 田原宇 | Pulverized coal combined circulating fluidized bed hierarchical pyrolytic gasifier |
| CN104449872A (en) * | 2014-12-11 | 2015-03-25 | 余传林 | Gasification process system for fine particle biomass or solid fossil fuel |
| CN105593346A (en) * | 2013-12-27 | 2016-05-18 | Posco能源公司 | Closure seal for electrical adaptor |
-
2011
- 2011-01-06 CN CN2011200019620U patent/CN201990639U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031155A (en) * | 2011-01-06 | 2011-04-27 | 广州迪森热能技术股份有限公司 | Two-section circulating fluidized bed biomass gasification system |
| CN102528068A (en) * | 2012-01-16 | 2012-07-04 | 中国科学院过程工程研究所 | Device and method for preparing superfine nickel powder |
| CN102528068B (en) * | 2012-01-16 | 2014-07-30 | 中国科学院过程工程研究所 | Device and method for preparing superfine nickel powder |
| CN102977928A (en) * | 2012-10-11 | 2013-03-20 | 田原宇 | Pulverized coal combined circulating fluidized bed hierarchical pyrolytic gasifier |
| CN105593346A (en) * | 2013-12-27 | 2016-05-18 | Posco能源公司 | Closure seal for electrical adaptor |
| CN105593346B (en) * | 2013-12-27 | 2018-01-02 | Posco能源公司 | Double-fluidized-bed indirect gasification device |
| CN104449872A (en) * | 2014-12-11 | 2015-03-25 | 余传林 | Gasification process system for fine particle biomass or solid fossil fuel |
| CN104449872B (en) * | 2014-12-11 | 2016-08-10 | 余传林 | A kind of fine particle biomass or the gasifying process system of solid fossil fuel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20200106 |
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| CF01 | Termination of patent right due to non-payment of annual fee |