CN201704294U - Combined device for gasifying biomass and coal - Google Patents
Combined device for gasifying biomass and coal Download PDFInfo
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- CN201704294U CN201704294U CN2010202289634U CN201020228963U CN201704294U CN 201704294 U CN201704294 U CN 201704294U CN 2010202289634 U CN2010202289634 U CN 2010202289634U CN 201020228963 U CN201020228963 U CN 201020228963U CN 201704294 U CN201704294 U CN 201704294U
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Abstract
The utility model provides a combined device for gasifying biomass and coal comprising a fluidized bed (6), a gas distributer (4), a raw coal inlet (5), a steam inlet (3), a biomass jet-flow feeding pipe (2), a cyclone separator (7), a synthesis gas outlet (8) and an ash outlet (1), wherein the combined device is characterized in that the cyclone separator (7) is arranged at the upper part of the fluidized bed (6); the synthesis gas outlet (8) is formed at the top end of the cyclone separator (7); the raw coal inlet (5) is arranged on the lateral surface of the lower part of the fluidized bed (6); the gas distributer (4) is mounted at the lower part of the fluidized bed (6) and communicated with the steam inlet (3); the biomass jet-flow feeding pipe (2) is mounted at the center of the bottom of the fluidized bed (6); and the ash outlet (1) is arranged at the bottom of the bed body at the lower part of the fluidized bed (6). The biomass is pneumatically delivered into the fluidized bed (6) via the biomass jet-flow feeding pipe (2), thus forming continuous jet-flow above the biomass jet-flow feeding pipe (2); the raw coal is fed in via the raw coal inlet (5), so that the raw coal and the biomass can form the reverse-flow motion; accordingly, the biomass and coal can be fully mixed under the action of the jet-flow disturbance; and the steam is fed into the fluidized bed (6) via the steam inlet (3) and the gas distributer (4), so that the pyrolytic reaction and gasification reaction can be conducted between the biomass and coal in the presence of the steam.
Description
Technical field
The utility model is a kind of biomass and coal combined gasification equipment, relate in particular to a kind of biomass and coal gasify altogether the preparation synthetic gas jet fluidized-bed gasification installation.
Background technology
In order to tackle climate change, reduce greenhouse gases CO
2The quantity discharged focus that become international community and paid close attention to.Biomass are the extremely abundant renewable energy source of zero-sum reserves as the clean discharging of a kind of carbonic acid gas, and development and use have a high potential.Along with the minimizing day by day of fossil energy, biomass gasification technology also has very important realistic meaning to China's Energy restructuring.The carbon monoxide and hydrogen mixture that biomass get through vaporizing system (being commonly referred to synthetic gas) further catalysis synthetic fluid, geseous fuel or industrial chemicals intermediate has been subjected to the unprecedented attention of domestic industry circle and academia, and dropped into great amount of manpower and carried out relevant research and development with material resources, what have enters pilot scale or half suitability for industrialized production scale.
Biomass are when gasification, because particulate irregularity, cause in fluidized-bed stabilization fluid separately, in order to improve its fluidizing performance, usually need to add a certain amount of solid, inert and help flow medium, for example do not have the quartz sand of catalytic performance and have the rhombspar etc. of katalysis, increased the power consume.In addition, can produce a large amount of tar during gasifying biomass, cause pipeline or equipment to stop up easily, influence the steady running of device, if the tar of discharge deal with improperly, also can be to secondary environmental pollution.Biomass and coal combined gasification can well remedy the biomass defective of gasification separately.Chinese patent CN 1230498C discloses biomass and the burning of fluidized bed air feed and has supplied the gasification installation of the periodical operation of steam gasification, at the air feed combustion phases, supplies with coal and air, coal is burnt under fluidized state produce heat; For the steam gasification stage, feed biomass and water vapor, in this process, produce high heating value gas.This invention is adopted air feed burning and for the periodical operation of steam gasification, although avoided the generation of tar, has been reduced production efficiency, and the operating procedure complexity has increased the difficulty of industrial applications.
Summary of the invention
The purpose of this utility model provide a kind of simple in structure, cost is low, easy-operating biomass and coal combined gasification equipment.
The object of the present invention is achieved like this, it is by fluidized-bed, gas distributor, the feed coal inlet, steam entry, biomass jet feed-pipe, cyclonic separator, syngas outlet and lime-ash outlet are formed, it is characterized in that fluidized-bed top bed body is connected by the tapering transition section with the lower bed body, top bed body diameter is greater than lower bed body diameter, a cyclonic separator is arranged in the top bed body, the cyclonic separator top is a syngas outlet, the lower bed body side surface has the feed coal inlet, gas distributor is equipped with in the fluidized-bed bottom, gas distributor communicates with steam entry, biomass jet feed-pipe is equipped with in the center of fluidized-bed bottom, and fluidized-bed lower bed body bottom is the lime-ash outlet.
Biomass enter fluidized-bed by biomass jet feed-pipe jet, and mix with feed coal that feed coal inlet enters, water vapor enters bed through steam entry and gas distributor, pyrolysis and gasification reaction take place in biomass and coal under the effect of water vapor, synthetic gas is discharged from syngas outlet after cyclonic separator separates, and lime-ash is discharged by the lime-ash outlet.
The utility model compared with prior art has the following advantages:
1. the utility model has adopted different feeding manners to biomass and coal, biomass are by the air conveying fluidized-bed that enters of air, above biomass jet feed-pipe, form solid jet, feed coal is then entered by the lateral feed coal inlet of fluidized-bed, and form countercurrent movement with biomass, under the effusive disturbance, the realization biomass are mixed fully with coal, avoid biomass and coal the classification phenomenon to occur in fluidized-bed;
2. oxygen concentration is higher in the fluerics, biomass jet feed-pipe top, main generation biomass and burning of coal thermopositive reaction, and peripheral annular space district oxygen concentration is lower, the main pyrolysis that biomass and coal take place and with the gasification thermo-negative reaction of water vapor, the heat that the fluerics combustion reactions discharges, be passed to the annular space district by strong internal recycle of particulate and the diffusion of central section high-temperature gas,, realize the direct coupling of energy for pyrolysis of annular space district and gasification thermo-negative reaction provide energy;
3. a cyclonic separator is arranged in the fluidized-bed top bed body, can make synthetic gas and grey high efficiency separation, the high temperature ash after the separation turns back in the fluidized-bed again, has effectively reduced power loss;
4. the conical gas sparger is equipped with in the fluidized-bed bottom, guaranteed to form bubbling fluidization in fluidized-bed annular space district, the mixing of particle and gas is more abundant, has effectively promoted the pyrolysis and the gasification reaction of biomass and coal, improve the reaction efficiency of device, also helped cindery discharging simultaneously.
Description of drawings
Fig. 1 is a structural representation of the present utility model
As shown in the figure, the 1st, lime-ash outlet, the 2nd, biomass jet feed-pipe, the 3rd, steam entry, the 4th, gas distributor, the 5th, feed coal inlet, the 6th, fluidized-bed, the 7th, cyclonic separator, the 8th, syngas outlet.
Embodiment
A cyclonic separator 7 is arranged at fluidized-bed 6 tops, cyclonic separator 7 tops are syngas outlet 8, fluidized-bed 6 lower side have feed coal inlet 5, gas distributor 4 is equipped with in fluidized-bed 6 bottoms, gas distributor 4 communicates with steam entry 3, biomass jet feed-pipe 2 is equipped with in the center of fluidized-bed 6 bottoms, and fluidized-bed 6 lower bed bodies bottom is lime-ash outlet 1.
Biomass are entered fluidized-bed 6 by biomass jet feed-pipe 2 by air is air conveying, above biomass jet feed-pipe 2, form solid jet, feed coal is then entered by feed coal inlet 5, and form countercurrent movement with biomass, under the effusive disturbance, the realization biomass are mixed fully with coal, oxygen concentration is higher in the fluerics, main generation biomass and burning of coal thermopositive reaction, water vapor enters in the fluidized-bed 6 through steam entry 3 and gas distributor 4, pyrolysis and gasification reaction take place in biomass and coal under the effect of water vapor, the synthetic gas of carrying ash secretly enters the cyclonic separator 7 on fluidized-bed 6 tops, synthetic gas after cyclonic separator 7 separates is discharged by cyclonic separator 7 vertical syngas outlet 8, and lime-ash is discharged by the lime-ash outlet 1 of fluidized-bed 6 bottoms.
Claims (2)
1. biomass and coal combined gasification equipment export (1) by fluidized-bed (6), gas distributor (4), feed coal inlet (5), steam entry (3), biomass jet feed-pipe (2), cyclonic separator (7), syngas outlet (8) and lime-ash and form.It is characterized in that a cyclonic separator (7) is arranged at fluidized-bed (6) top, cyclonic separator (7) top is syngas outlet (8), fluidized-bed (6) lower side has feed coal inlet (5), gas distributor (4) is equipped with in fluidized-bed (6) bottom, gas distributor (4) communicates with steam entry (3), biomass jet feed-pipe (2) is equipped with in the center of fluidized-bed (6) bottom, and fluidized-bed (6) lower bed body bottom is lime-ash outlet (1).
2. a kind of biomass as claimed in claim 1 and coal combined gasification equipment is characterized in that described gas distributor (4) is a conical distributor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202289634U CN201704294U (en) | 2010-06-09 | 2010-06-09 | Combined device for gasifying biomass and coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202289634U CN201704294U (en) | 2010-06-09 | 2010-06-09 | Combined device for gasifying biomass and coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201704294U true CN201704294U (en) | 2011-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202289634U Expired - Fee Related CN201704294U (en) | 2010-06-09 | 2010-06-09 | Combined device for gasifying biomass and coal |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752232A (en) * | 2014-02-24 | 2014-04-30 | 重庆大学 | Viscous fine mineral powder fluidization reactor |
| CN105018154A (en) * | 2014-04-16 | 2015-11-04 | 代建军 | Biomass double fluidized bed indirect gasification system and control method thereof |
| CN105349184A (en) * | 2015-11-09 | 2016-02-24 | 浙江大学 | Compound furnace catalysis vaporization device and method |
| WO2018133304A1 (en) * | 2017-01-22 | 2018-07-26 | 江苏华威机械制造有限公司 | Separation and pyrolysis system |
| CN108488786A (en) * | 2018-01-24 | 2018-09-04 | 江苏大学 | A kind of carbon-based fuel fractional combustion based on chemical chain and destructive distillation device and method |
| CN110003925A (en) * | 2019-04-04 | 2019-07-12 | 华北电力大学 | A kind of cone mill roll-type biomass quick catalysis pyrolysis reactor and its method for pyrolysis |
-
2010
- 2010-06-09 CN CN2010202289634U patent/CN201704294U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752232A (en) * | 2014-02-24 | 2014-04-30 | 重庆大学 | Viscous fine mineral powder fluidization reactor |
| CN103752232B (en) * | 2014-02-24 | 2015-12-30 | 重庆大学 | Viscosity mineral fine fluidizing reactor |
| CN105018154A (en) * | 2014-04-16 | 2015-11-04 | 代建军 | Biomass double fluidized bed indirect gasification system and control method thereof |
| CN105349184A (en) * | 2015-11-09 | 2016-02-24 | 浙江大学 | Compound furnace catalysis vaporization device and method |
| CN105349184B (en) * | 2015-11-09 | 2018-09-28 | 浙江大学 | A kind of device and method of composite furnace catalytic gasification |
| WO2018133304A1 (en) * | 2017-01-22 | 2018-07-26 | 江苏华威机械制造有限公司 | Separation and pyrolysis system |
| CN108488786A (en) * | 2018-01-24 | 2018-09-04 | 江苏大学 | A kind of carbon-based fuel fractional combustion based on chemical chain and destructive distillation device and method |
| CN108488786B (en) * | 2018-01-24 | 2023-11-10 | 江苏大学 | Carbon-based fuel staged combustion and carbonization device and method based on chemical chains |
| CN110003925A (en) * | 2019-04-04 | 2019-07-12 | 华北电力大学 | A kind of cone mill roll-type biomass quick catalysis pyrolysis reactor and its method for pyrolysis |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20130609 |