CN201436295U - Biomass circulation fluidized bed gasifier - Google Patents
Biomass circulation fluidized bed gasifier Download PDFInfo
- Publication number
- CN201436295U CN201436295U CN2009200585734U CN200920058573U CN201436295U CN 201436295 U CN201436295 U CN 201436295U CN 2009200585734 U CN2009200585734 U CN 2009200585734U CN 200920058573 U CN200920058573 U CN 200920058573U CN 201436295 U CN201436295 U CN 201436295U
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- biomass
- heater
- fluid bed
- circulating fluid
- gasification furnace
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Abstract
The utility model belongs to technical field of biomass gasifier, especially relates to a biomass circulation fluidized bed gasifier comprising a feeing device, a blast device, a gasifier and a dust remover. The feeding device is arranged on one side of the gasifier with the other side provided with an igniting hole, the lower end of the gasifier is provided with a filling valve port which is provided with a filling valve and communicated with the blast device, the upper end of the gasifier is provided with a gas pipe which is communicated with the dust remover equipped with a gas outlet. The utility model can perform quick thermal decomposition on biomass raw material with a fine granularity even smaller than and equal to 3cm, so as to generate CO, H2, CH4 or other alkane gas, without products having serious environmental pollution such as sulfur, dust and the like, with calorific value being 5-8.6MJ/m<3> and fluidized speed achieving requirement of quick filtration, namely being greater than granular terminal speed by 3-5 times. The utility model can be used for coal-fired, oil-fired boilers with quantity of steam greater than 6t/h and little environmental pollution caused by the gas emission.
Description
Technical field:
The utility model belongs to the biomass gasification device technical field, particularly the biomass circulating fluid bed gasification furnace.
Background technology:
Biomass energy is to be fixed in tellurian sun power by photosynthesis of plants, is one of important " green energy resource ", and biomass energy can be regenerated, and is inexhaustible, inexhaustible.According to estimates, 10 times of being equivalent to approximately that world's main fuel consumes of the annual energy of storing of plant; And be less than 1% of its total amount as the utilization of the energy.The biomass that these are not used, for finishing natural carbon cycle, its overwhelming majority is discharged energy and carbon element by natural decomposition, gets back to occurring in nature.Biomass combustion is traditional mode of utilizing, and not only thermo-efficiency is low, and labour intensity is big, and is seriously polluted.Can utilize biomass energy efficiently by the biomass energy switch technology, produce various clean fuels, substitute coal, fuel such as oil and natural gas are produced electric power.And minimizing is protected national Energy resources to the dependence of fossil energy, alleviates the pollution that energy expenditure causes to environment.
Gasification is as a kind of efficient, clean method of utilizing, and important effect arranged aspect the pollution improving the biomass utilization ratio and reduce.Biomass gasification device is a kind of device that biomass is transformed into inflammable gas that is used for specially handling, and it makes it volatilize H biomass waste material thermal degradation
2, CO, CH
4With hydrocarbon polymer CnHm, promptly change inflammable gas into, be called wood gas, be a kind of high energy, boiler of feeding or other burner use.Present biomass gasification device, main handle be of a size of 10cm～70cm than mcroorganism matter, for straw, the less biomass of straw equidimension after wood chip, husk or the pulverizing, these biomass gatherings 10cm～70cm need be compacted to and the biomass gasification device utilization could be, can not directly utilize the less biomass of size, utilize the biomass limitation bigger.
The utility model content:
The purpose of this utility model is to provide a kind of Rapid Thermal of carrying out the biomass material of tiny granularity to decompose at the deficiencies in the prior art, to produce the device of available geseous fuel---the biomass circulating fluid bed gasification furnace, to solve handling problem to the biomass material of tiny granularity.
For achieving the above object, the utility model adopts following technical scheme:
The biomass circulating fluid bed gasification furnace, it comprises feeding unit, air-blast device, vapourizing furnace and fly-ash separator, feeding unit is located at a side of vapourizing furnace, the opposite side of vapourizing furnace is provided with fire hole, and the lower end of vapourizing furnace is provided with the filler valve port, and filler valve port place is provided with the filler valve, air-blast device is communicated with the filler valve port, the upper end of vapourizing furnace is provided with pneumatic tube, and pneumatic tube is communicated with fly-ash separator, and fly-ash separator is provided with escape pipe.
Described feeding unit comprises hopper, biomass puopulsion unit and variable speed motor, and an end of biomass puopulsion unit is connected with hopper, and the other end is communicated with vapourizing furnace, and variable speed motor is arranged on the biomass puopulsion unit.
Described air-blast device comprises gas blower, spinner-type flowmeter, inlet pipe, pneumavalve, and gas blower is communicated with the filler valve port by inlet pipe, and inlet pipe is provided with spinner-type flowmeter and pneumavalve.
Also be provided with hand sluice valve on the described inlet pipe.
Described fly-ash separator is tornado dust collector or sack cleaner.
The below of described fire hole also is provided with cinder cleaning hole.
Described filler valve is made of transversely movable two valves.
The furnace wall of described vapourizing furnace is provided with thermal insulation layer.
The utility model beneficial effect is: the biomass circulating fluid bed gasification furnace, it comprises feeding unit, air-blast device, vapourizing furnace and fly-ash separator, feeding unit is located at a side of vapourizing furnace, the opposite side of vapourizing furnace is provided with fire hole, and the lower end of vapourizing furnace is provided with the filler valve port, and filler valve port place is provided with the filler valve, air-blast device is communicated with the filler valve port, the upper end of vapourizing furnace is provided with pneumatic tube, and pneumatic tube is communicated with fly-ash separator, and fly-ash separator is provided with escape pipe.Light vapourizing furnace from fire hole, air-blast device is blown into air to vapourizing furnace, and biomass enter vapourizing furnace from feeding unit, and biomass Rapid Thermal in vapourizing furnace is decomposed, and generates CO, H
2, CH
4Or other alkanes gas, the gas of generation is discharged from escape pipe after the fly-ash separator udst separation, enters boiler or other burner, uses for them.The utility model can to tiny granularity or even≤biomass material of 3cm carries out Rapid Thermal and decomposes, and generates CO, H
2, CH
4Or other alkanes gas, there are not products big for environment pollution such as sulphur, ash, calorific value reaches 5-8.6MJ/M
3, fluidizing velocity reaches the requirement of quick filter attitudeization, and promptly greater than 3-5 particle terminal velocity doubly, can be used for quantity of steam is above fire coal, oil-firing boiler of 6t/h, and the gas environmental pollution of burning back discharging is little.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Reference numeral:
1---body of heater 2---fly-ash separator 3---pneumatic tube
4---escape pipe 5---hopper 6---biomass puopulsion units
7---variable speed motor 8---gas blower 9---spinner-type flowmeters
10---inlet pipe 11---fire hole 12---filler valve ports
13---filler valve 14---pneumavalve 15---hand sluice valves
16---cinder cleaning hole 17---thermal insulation layer 18---dedusting valves
19---gas slag separating opening 20---quartz sand
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described, sees accompanying drawing 1.
The biomass circulating fluid bed gasification furnace, it comprises feeding unit, air-blast device, body of heater 1 and fly-ash separator 2, feeding unit is located at a side of body of heater 1, the opposite side of body of heater 1 is provided with fire hole 11, and the lower end of body of heater 1 is provided with filler valve port 12, and filler valve port 12 places are provided with filler valve 13, air-blast device is communicated with filler valve port 12, the upper end of body of heater 1 is provided with pneumatic tube 3, and pneumatic tube 3 is communicated with fly-ash separator 2, and fly-ash separator 2 is provided with escape pipe 4.
Described feeding unit comprises hopper 5, biomass puopulsion unit 6 and variable speed motor 7, and an end of biomass puopulsion unit 6 is connected with hopper 5, and the other end is communicated with body of heater 1, and variable speed motor 7 is arranged on the biomass puopulsion unit 6.Biomass are put into hopper 5, and biomass puopulsion unit 6 is advanced into body of heater 1 with biomass under the startup of variable speed motor 7.
Described air-blast device comprises gas blower 8, spinner-type flowmeter 9, inlet pipe 10, pneumavalve 14, and gas blower 8 is communicated with filler valve port 12 by inlet pipe 10, and inlet pipe 10 is provided with spinner-type flowmeter 9 and pneumavalve 14.Start gas blower 8, can be blown into air to body of heater 1, air blast is combustion-supporting, and spinner-type flowmeter 9 can detect the air capacity that gas blower 8 is blown into, and pneumavalve 14 can be regulated the air capacity that gas blower 8 is blown into according to reaction needed.
Also be provided with hand sluice valve 15 on the described inlet pipe 10.When air-blast device breaks down, can open hand sluice valve 15, be blown into air to body of heater 1, guarantee continuing, normally using of body of heater 1.
Described fly-ash separator 2 is tornado dust collector or sack cleaner.The dust removal mechanism of tornado dust collector is that dust-contained airflow is rotated, and separates from air-flow and captures in wall by means of centrifugal force depositing dust grain, relends and helps action of gravity to make grit fall into ash bucket.The working mechanism of sack cleaner is that ash-laden gas passes through filtering material, and grit is filtered, and filtering material captures coarse dust mainly by the inertial impaction effect, captures grain dust mainly by diffusion and sieving action.The lower end of fly-ash separator 2 is provided with dedusting valve 18, can in time grit be removed, and guarantees the normal use of fly-ash separator 2.
The below of described fire hole 11 also is provided with cinder cleaning hole 16.By cinder cleaning hole 16, can in time know the combustion ashes such as ash wood of 1 li of body of heater, guarantee the normal use of body of heater 1.
Described filler valve 13 is made of transversely movable two valves, and filler valve 13 is opened flexibly, the convenient filler that adds.
The furnace wall of described body of heater 1 is provided with thermal insulation layer 17, and thermal insulation layer 17 can make the temperature of body of heater 1 remain on required temperature, reduces the loss of heat.
Principle of work:
Before the utility model work, 1 adding quartz sand 20 and the charcoal from filler valve port 12 toward body of heater closed filler valve 13 earlier, lights the charcoal of body of heater 1 then from fire hole 11, utilize gas blower 8 blowing-in and combustion-supportings, make body of heater 1 inside reach the temperature (200 ℃～300 ℃) of gasifying biomass rapidly.Biomass are advanced into body of heater 1 from feeding unit, and biomass are burnt in body of heater 1, Rapid Thermal takes place decompose, and generate gas, coke and tar, and tar continues cracking under hot environment, and coke and CO
2, H
2O further reduces, and at gas slag separating opening 19 places of pneumatic tube 3, the carbon granules of complete reaction and gas are not separated, and gas is seen off as product, and coke is then got back to body of heater 1 bottom and air burns.Biomass are in the reaction of body of heater 1, from being divided into combustion zone, pyrolysis zone and reduction zone, pyrolytic reaction down, be in the high-temperature zone, and because biological particles is less, heat transfer condition is good, the heating rate that is subjected in high temperature is very high, can carry out unique Rapid Thermal and decompose.By gasification kinetics as can be known, the gas volume that the Rapid Thermal of high heating rate decompose to generate is many, and coke and tar are seldom, and gas heating value is also higher, so be very beneficial for the carrying out of gasifying.Simultaneously and since unreacted completely coke get back to body of heater 1 bottom, can reduce on the one hand the loss of coke, on the other hand, the pyritous coke meets in body of heater 1 bottom and air, can burn rapidly, for body of heater 1 provides enough heats, minimizing oxygen and H
2, CH
4, CO etc. reaction, thereby guarantee that body of heater 1 exit gas calorific value is higher.In addition, because the reduction zone is in a pyrolysis zone very long interval afterwards, make the cracking of tar and also original time enough of coke, the effect of gasification is further improved, so with respect to other bodies of heater, the gas heating value of generation is higher, carbon transforms more complete, and required equivalence ratio is also lower, between 0.2～0.25, is a kind of efficient ideal vaporous form.
The inflammable gas CO, the H that generate
2, CH
4Or other alkanes gas, after fly-ash separator 2 udst separations, discharge from escape pipe 4, there are not products big for environment pollution such as sulphur, ash, enter boiler or other burner, use for them, the gas environment pollution that gives off after the burning is little.The inflammable gas calorific value that generates reaches 5-8.6MJ/M
3Can be used for quantity of steam is above fire coal, oil-firing boiler of 6t/h.
After testing, use the SO of the exhaust emissions of boiler of the present utility model or other burner
2Be 12.84mg/m
3, NO
XBe 161.7mg/m
3, flue dust is 9.27mg/m
3, well below the SO of " Air Pollutant Emission limit value " DB44/27-2001 I period secondary standard
2≤ 550mg/m
3, NO
X≤ 240mg/m
3, flue dust≤120mg/m
3, the gas environmental pollution that gives off after the burning is little.
The above only is a better embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.
Claims (8)
1. biomass circulating fluid bed gasification furnace, it is characterized in that: it comprises feeding unit, air-blast device, body of heater (1) and fly-ash separator (2), feeding unit is located at a side of body of heater (1), the opposite side of body of heater (1) is provided with fire hole (11), the lower end of body of heater (1) is provided with filler valve port (12), filler valve port (12) locates to be provided with filler valve (13), air-blast device is communicated with filler valve port (12), the upper end of body of heater (1) is provided with pneumatic tube (3), pneumatic tube (3) is communicated with fly-ash separator (2), and fly-ash separator (2) is provided with escape pipe (4).
2. biomass circulating fluid bed gasification furnace according to claim 1, it is characterized in that: described feeding unit comprises hopper (5), biomass puopulsion unit (6) and variable speed motor (7), one end of biomass puopulsion unit (6) is connected with hopper (5), the other end is communicated with body of heater (1), and variable speed motor (7) is arranged on the biomass puopulsion unit (6).
3. biomass circulating fluid bed gasification furnace according to claim 1, it is characterized in that: described air-blast device comprises gas blower (8), spinner-type flowmeter (9), inlet pipe (10), pneumavalve (14), gas blower (8) is communicated with filler valve port (12) by inlet pipe (10), and inlet pipe (10) is provided with spinner-type flowmeter (9) and pneumavalve (14).
4. biomass circulating fluid bed gasification furnace according to claim 3 is characterized in that: also be provided with hand sluice valve (15) on the described inlet pipe (10).
5. biomass circulating fluid bed gasification furnace according to claim 1 is characterized in that: described fly-ash separator (2) is tornado dust collector or sack cleaner.
6. biomass circulating fluid bed gasification furnace according to claim 1 is characterized in that: the below of described fire hole (11) also is provided with cinder cleaning hole (16).
7. biomass circulating fluid bed gasification furnace according to claim 1 is characterized in that: described filler valve (13) is made of transversely movable two valves.
8. according to any described biomass circulating fluid bed gasification furnace of claim 1-7, it is characterized in that: the furnace wall of described body of heater (1) is provided with thermal insulation layer (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200585734U CN201436295U (en) | 2009-06-17 | 2009-06-17 | Biomass circulation fluidized bed gasifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200585734U CN201436295U (en) | 2009-06-17 | 2009-06-17 | Biomass circulation fluidized bed gasifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201436295U true CN201436295U (en) | 2010-04-07 |
Family
ID=42372750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200585734U Expired - Fee Related CN201436295U (en) | 2009-06-17 | 2009-06-17 | Biomass circulation fluidized bed gasifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201436295U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216843A (en) * | 2013-03-29 | 2013-07-24 | 合肥德博生物能源科技有限公司 | Biomass gasifying burning boiler |
-
2009
- 2009-06-17 CN CN2009200585734U patent/CN201436295U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216843A (en) * | 2013-03-29 | 2013-07-24 | 合肥德博生物能源科技有限公司 | Biomass gasifying burning boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: DONGGUAN BAIDA SING ENERGY CO., LTD. Free format text: FORMER NAME: BAIDA NEW ENERGY CO., LTD., DONGGUAN CITY |
|
| CP03 | Change of name, title or address |
Address after: 523808, 509, 510, 511, building 3, Songshan Technology Industrial Park, Songshan Lake Science and Technology Park, Guangdong, Dongguan, 5 Patentee after: Dongguan Baida New Energy Co., Ltd. Address before: 523770 Guangdong province Dongguan city Dalang town west of Pine Hill section of Dongguan City Lang 100 new energy Co. Ltd. Patentee before: Dongguan Baida New Energy Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100407 Termination date: 20170617 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |