CN111394138B - Biomass pellet pyrolysis semi-gasification furnace - Google Patents
Biomass pellet pyrolysis semi-gasification furnace Download PDFInfo
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- CN111394138B CN111394138B CN202010346987.8A CN202010346987A CN111394138B CN 111394138 B CN111394138 B CN 111394138B CN 202010346987 A CN202010346987 A CN 202010346987A CN 111394138 B CN111394138 B CN 111394138B
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- gasification
- waste heat
- heat recovery
- recovery box
- combustion furnace
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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
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/723—Controlling or regulating the gasification process
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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
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/0916—Biomass
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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
- C10J2300/12—Heating the gasifier
- C10J2300/1207—Heating the gasifier using pyrolysis gas as fuel
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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
- C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
- C10J2300/1807—Recycle loops, e.g. gas, solids, heating medium, water
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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
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
生物质颗粒热解半气化炉具，包括燃烧炉，在燃烧炉一侧设置上窄下宽的气化沉降室，在气化沉降室顶部设有出火口，在气化沉降室内位于出火口处固定安装上窄下宽的气化沉降罩，气化沉降罩侧壁底部设有一豁口，且在气化沉降室与气化沉降罩之间固定安装螺旋导流板，在燃烧炉与气化沉降室之间连通过火管，在气化沉降室顶部位于出火口处固定安装环形且中空的聚风盘，在聚风盘内圆面周向均匀设有径向倾斜的聚风口，聚风盘侧壁通过第一风管连通风机。其可将产生的烟尘回收，避免烟尘飘散到大气中污染环境，将未完全燃烧的可燃气体再次引燃，提高燃料的热转换率，节约能源，防止因产生焦油阻塞管道。
The biomass particle pyrolysis semi-gasification furnace comprises a combustion furnace, a gasification settling chamber which is narrow at the top and wide at the bottom is arranged on one side of the combustion furnace, a fire outlet is arranged at the top of the gasification settling chamber, a gasification settling hood which is narrow at the top and wide at the bottom is fixedly installed at the fire outlet in the gasification settling chamber, a notch is arranged at the bottom of the side wall of the gasification settling hood, and a spiral guide plate is fixedly installed between the gasification settling chamber and the gasification settling hood, a fire pipe is connected between the combustion furnace and the gasification settling chamber, a ring-shaped and hollow air collecting disk is fixedly installed at the top of the gasification settling chamber at the fire outlet, radially inclined air collecting ports are evenly arranged on the inner circumference of the air collecting disk, and the side wall of the air collecting disk is connected to the fan through the first air duct. It can recycle the generated smoke and dust to prevent the smoke and dust from drifting into the atmosphere to pollute the environment, re-ignite the incompletely burned combustible gas, improve the thermal conversion rate of the fuel, save energy, and prevent the pipeline from being blocked due to the generation of tar.
Description
Technical Field
The invention relates to a biomass particle stove, in particular to a biomass particle pyrolysis semi-gasification stove.
Background
The biomass particle stove is a stove using biomass particles made of crushed firewood, straw, corncob and the like as fuel, and is widely applied to the fields of cooking, heating, water heating and the like. The existing biomass particle stove cannot fully burn fuel due to insufficient oxygen supply, generates a large amount of smoke dust, incompletely burned combustible gas and tar, and the generated smoke dust drifts into the atmosphere to pollute the environment, so that the incompletely burned combustible gas reduces the heat conversion rate of the fuel, and causes energy waste and the generated tar blocks a pipeline.
Disclosure of Invention
The invention aims to solve the technical problems and provides a biomass particle pyrolysis semi-gasification stove which can recycle generated smoke dust, prevent the smoke dust from drifting into the atmosphere to pollute the environment, re-ignite the combustible gas which is not completely combusted, improve the heat conversion rate of fuel, save energy and prevent the pipeline from being blocked by tar.
The technical scheme of the invention is as follows:
The biomass particle pyrolysis semi-gasification stove comprises a combustion furnace and is characterized in that a gasification sedimentation chamber with a narrow upper part and a wide lower part is arranged on one side of the combustion furnace, a fire outlet is arranged at the top of the gasification sedimentation chamber, a gasification sedimentation cover with a narrow upper part and a wide lower part is fixedly arranged at the fire outlet in the gasification sedimentation chamber, a notch is arranged at the bottom of the side wall of the gasification sedimentation cover, a spiral guide plate is fixedly arranged between the gasification sedimentation chamber and the gasification sedimentation cover, a fire tube is connected between the combustion furnace and the gasification sedimentation chamber, an annular and hollow wind gathering disc is fixedly arranged at the fire outlet at the top of the gasification sedimentation chamber, radially inclined wind gathering openings are uniformly arranged on the circumference of the inner circle of the wind gathering disc, and the side wall of the wind gathering disc is communicated with a fan through a first air tube.
Further preferably, a waste heat recovery box is arranged on the outer cover of the gasification settling chamber, the fan is fixedly arranged on the side wall of the waste heat recovery box, and the air inlet end of the first air pipe is communicated with the waste heat recovery box.
Further preferably, a second air pipe is communicated between the waste heat recovery box and the fire passing pipe, the second air pipe is opened, oxygen is provided for the fire passing pipe, part of unburned combustible gas is combusted in the gasification sedimentation chamber, the concentration of the unburned combustible gas at the fire outlet is reduced, and the fire power at the fire outlet is reduced.
Further preferably, a third air pipe is communicated between the waste heat recovery box and the lower part of the combustion furnace, and the third air pipe is opened to supply oxygen to the combustion furnace so as to gasify and burn the fuel in the combustion furnace.
Further preferably, a fourth air pipe is communicated between the waste heat recovery box and the gasification settling chamber, and a small amount of oxygen is supplemented into the gasification settling chamber to prevent flame interruption.
Further preferably, a vertical upward tuyere is arranged at the bottom in the waste heat recovery box, extends upwards to the fire outlet through the gasification sedimentation cover, and is communicated with a fifth air pipe between the waste heat recovery box and the tuyere to supplement oxygen to the center of the fire outlet and prevent the lack of oxygen in the flame center at the fire outlet.
Further preferably, a feeder is arranged on the side wall of the combustion furnace, a hopper is arranged on an output pipe of the feeder, a sixth air pipe is communicated between the waste heat recovery box and the output pipe of the feeder, high pressure is formed in the output pipe of the feeder, and smoke dust in the combustion furnace is prevented from flowing backwards to the hopper.
Further preferably, a pushing plate is arranged below an output pipe of the feeder on the side wall of the combustion furnace, a motor is fixedly arranged on the side wall of the combustion furnace, a crank rocker mechanism is connected between the output shaft of the motor and the pushing plate, the motor drives the pushing plate to reciprocate, and sintered coke in the combustion furnace is pushed away from an outlet of the feeder, so that the feeder is ensured to feed normally.
Further preferably, a seventh air duct is communicated between the waste heat recovery tank and the upper part of the combustion furnace, and the seventh air duct blows heat generated when the igniter ignites to the fuel, and ignites the fuel.
Further preferably, an annular fire collecting disc is arranged at the top of the wind collecting disc, so that flames at a fire outlet are concentrated, an ash accumulation bin protruding to one side is arranged at the bottom of the gasification settling chamber, the ash accumulation bin penetrates out of the waste heat recovery box, and an ash removal door is arranged at the end of the ash accumulation bin penetrating out of the waste heat recovery box.
The beneficial effects of the invention are as follows:
1. Because the upper narrow and lower wide gasification settling chamber, the upper narrow and lower wide gasification settling cover fixedly arranged in the gasification settling chamber and positioned at the fire outlet, the spiral guide plate fixedly arranged between the gasification settling chamber and the gasification settling cover, the smoke and the combustible gas which is generated in the combustion furnace enter the gasification settling chamber through the fire tube, under the guiding action of the spiral guide plate, the smoke and the combustible gas which is not completely combusted enter the gasification settling chamber and move downwards in a spiral way, under the action of centrifugal force and the inclined plane of the side wall of the gasification settling chamber, the smoke and the dust in the smoke and the dust concentrate to the inner wall of the gasification settling chamber and then fall to the bottom of the gasification settling chamber, under the action of centrifugal force and the inclined plane of the gasification settling cover, the smoke and the combustible gas which is not completely combusted concentrate to the inner wall of the gasification settling cover and fall to the bottom of the gasification settling chamber through the opening of the side wall of the gasification settling cover, so that the flame discharged through the fire outlet is prevented from flying to the atmosphere.
2. The annular and hollow wind collecting disc is fixedly arranged at the fire outlet of the gasification settling chamber, the wind collecting ports are circumferentially and uniformly arranged on the inner circular surface of the wind collecting disc, and the fan communicated with the wind collecting disc through the first air pipe is used for providing oxygen for flames discharged through the fire outlet and combustible gas which is not completely combusted under the action of wind force blown out by the wind collecting ports which are radially inclined on the inner circular surface of the wind collecting disc, so that the flames discharged through the fire outlet and the combustible gas which is not completely combusted are fully combusted, the heat conversion rate of fuel is improved, energy is saved, a pipeline is prevented from being blocked due to tar, meanwhile, wind pressure is formed at the fire outlet, and incompletely settled smoke dust is pressed in the gasification settling cover to prevent the air from entering.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a rear view of FIG. 1;
FIG. 4 is a right side view of the burner of FIG. 1;
FIG. 5 is a top view of the wind tray of FIG. 1;
In the figure, the device comprises a 1-combustion furnace, a 2-waste heat recovery box, a 3-gasification sedimentation chamber, a 4-gasification sedimentation cover, a 5-spiral guide plate, a 6-fire passing pipe, a 7-ash accumulation bin, an 8-ash removal door, a 9-fan, a 10-air collecting disc, an 11-air collecting opening, a 12-first air pipe, a 13-second air pipe, a 14-third air pipe, a 15-fourth air pipe, a 16-air nozzle, a 17-fifth air pipe, a 18-feeder, a 19-hopper, a 20-sixth air pipe, a 21-push plate, a 22-motor, a 23-crank rocker mechanism, a 24-seventh air pipe and a 25-fire collecting disc.
Detailed Description
As shown in fig. 1-5, the biomass particle pyrolysis semi-gasification furnace comprises a combustion furnace 1, a gasification sedimentation chamber 3 with a narrow upper part and a wide lower part is arranged at one side of the combustion furnace 1, a fire outlet is arranged at the top of the gasification sedimentation chamber 3, a waste heat recovery box 2 is arranged outside the gasification sedimentation chamber, a gasification sedimentation cover 4 with a narrow upper part and a wide lower part is fixedly arranged at the fire outlet in the gasification sedimentation chamber 3, a gap is arranged at the bottom of the side wall of the gasification sedimentation cover 4, a spiral guide plate 5 is fixedly arranged between the gasification sedimentation chamber 3 and the gasification sedimentation cover 4, a fire tube 6 is connected between the combustion furnace 1 and the gasification sedimentation chamber 3, an ash accumulation bin 7 protruding to one side is arranged at the bottom of the gasification sedimentation chamber 3, the ash accumulation bin 7 penetrates out of the waste heat recovery box 2, an ash removal door 8 is arranged at the end of the ash accumulation bin 7, a fan 9 which is fixedly arranged at the side wall of the waste heat recovery box 2 and is communicated with the waste heat recovery box 2, an annular and hollow air collecting disc 10 is fixedly arranged at the top of the gasification settling chamber 3 and positioned at a fire outlet, an annular fire collecting disc 25 is arranged at the top of the air collecting disc 10, radially inclined air collecting openings 11 are uniformly arranged on the circumference of the inner circle of the air collecting disc 10, a first air pipe 12 is communicated between the waste heat recovery box 2 and the air collecting disc 10, a second air pipe 13 is communicated between the waste heat recovery box 2 and the fire passing pipe 6, a third air pipe 14 is communicated between the waste heat recovery box 2 and the lower part of the combustion furnace 1, a fourth air pipe 15 is communicated between the waste heat recovery box 2 and the gasification settling chamber 3, a vertically upward air nozzle 16 is arranged at the inner bottom of the waste heat recovery box 2, the air nozzle 16 extends upwards to the fire outlet through the gasification settling cover 4, a fifth air pipe 17 is communicated between the waste heat recovery box 2 and the air nozzle 16, a feeder 18 is arranged on the side wall of the combustion furnace 1, a hopper 19 is arranged on the output pipe of the feeder 18, a sixth air pipe 20 is communicated between the waste heat recovery box 2 and an output pipe of the feeder 18, a push plate 21 is arranged below the output pipe of the feeder 18 on the side wall of the combustion furnace 1, a motor 22 is fixedly arranged on the side wall of the combustion furnace 1, a crank rocker mechanism 23 is connected between the output shaft of the motor 22 and the push plate 21, and a seventh air pipe 24 is communicated between the waste heat recovery box 2 and the upper part of the combustion furnace 1.
The working principle of the invention is as follows:
The feeder 18 feeds fuel into the combustion furnace 1 and ignites the fuel, the smoke and the combustible gas which are generated by the combustion of the fuel enter the gasification settling chamber 3 through the fire tube 6, the smoke and the combustible gas which are not completely combusted enter the gasification settling chamber 3 under the guiding action of the spiral guide plate 5 and move downwards in a spiral manner, under the action of centrifugal force and the inclined plane of the side wall of the gasification settling chamber 3, smoke dust in the smoke and the dust are concentrated to the bottom of the gasification settling chamber 3 and then fall to the bottom of the gasification settling chamber 3, the smoke and the combustible gas which are not completely combusted in the gasification settling chamber 3 enter the gasification settling cover 4 upwards in a spiral manner under the action of the centrifugal force and the inclined plane of the gasification settling cover 4, the smoke and the dust in the smoke are concentrated to the bottom of the gasification settling cover 4 and then fall to the bottom of the gasification settling chamber 3 through the opening of the side wall of the gasification settling cover 4, the flame discharged through the flame is dustless, oxygen is provided for the flame and the combustible gas discharged through the flame outlet and the combustible gas which is not completely combusted under the action of the wind force of the radially inclined wind gathering opening 11 on the inner circular surface of the wind gathering disk 10, and the heat loss of the flame discharged through the flame outlet is fully improved, and the heat loss of the flame is fully improved at the same time.
The above is only a specific embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A biomass particle pyrolysis semi-gasification stove comprises a combustion furnace and is characterized in that a gasification sedimentation chamber with a narrow upper part and a wide lower part is arranged on one side of the combustion furnace, a fire outlet is arranged at the top of the gasification sedimentation chamber, a gasification sedimentation cover with a narrow upper part and a wide lower part is fixedly arranged at the fire outlet in the gasification sedimentation chamber, a notch is arranged at the bottom of the side wall of the gasification sedimentation cover, a spiral guide plate is fixedly arranged between the gasification sedimentation chamber and the gasification sedimentation cover, a fire tube is connected between the combustion furnace and the gasification sedimentation chamber, an annular hollow wind collecting disc is fixedly arranged at the fire outlet at the top of the gasification sedimentation chamber, radially inclined wind collecting openings are uniformly arranged on the inner circumference of the wind collecting disc, and the side wall of the wind collecting disc is communicated with a fan through a first air tube.
2. The biomass particle pyrolysis semi-gasification furnace according to claim 1, wherein a waste heat recovery box is covered outside the gasification settling chamber, the fan is fixedly arranged on the side wall of the waste heat recovery box, and the air inlet end of the first air pipe is communicated with the waste heat recovery box.
3. The biomass particle pyrolysis semi-gasification furnace according to claim 2, wherein a second air duct is communicated between the waste heat recovery box and the overfire duct.
4. The biomass particle pyrolysis semi-gasification furnace according to claim 2, wherein a third air duct is communicated between the waste heat recovery box and the lower portion of the combustion furnace.
5. The biomass particle pyrolysis semi-gasification furnace according to claim 2, wherein a fourth air pipe is communicated between the waste heat recovery box and the gasification settling chamber.
6. The biomass particle pyrolysis semi-gasification furnace according to claim 2, wherein a vertically upward tuyere is arranged at the bottom of the waste heat recovery box, extends upward to a fire outlet through the gasification sedimentation cover, and is communicated with a fifth air pipe between the waste heat recovery box and the tuyere.
7. The biomass particle pyrolysis semi-gasification furnace according to claim 2, wherein a feeder is arranged on the side wall of the combustion furnace, a hopper is arranged on an output pipe of the feeder, and a sixth air pipe is communicated between the waste heat recovery box and the output pipe of the feeder.
8. The biomass particle pyrolysis semi-gasification furnace according to claim 1, wherein a pushing plate is arranged on the side wall of the combustion furnace below an output pipe of the feeder, a motor is fixedly arranged on the side wall of the combustion furnace, and a crank-rocker mechanism is connected between the output shaft of the motor and the pushing plate.
9. The biomass particle pyrolysis semi-gasification furnace according to claim 2, wherein a seventh air duct is communicated between the waste heat recovery tank and the upper portion of the combustion furnace.
10. The biomass particle pyrolysis semi-gasification furnace according to claim 2, wherein an annular fire collecting tray is arranged at the top of the air collecting tray, an ash accumulation bin protruding to one side is arranged at the bottom of the gasification settling chamber, the ash accumulation bin penetrates out of the waste heat recovery box, and an ash removal door is arranged at the end of the ash accumulation bin penetrating out of the waste heat recovery box.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010346987.8A CN111394138B (en) | 2020-04-28 | 2020-04-28 | Biomass pellet pyrolysis semi-gasification furnace |
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| CN202010346987.8A CN111394138B (en) | 2020-04-28 | 2020-04-28 | Biomass pellet pyrolysis semi-gasification furnace |
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| Publication Number | Publication Date |
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| CN111394138A CN111394138A (en) | 2020-07-10 |
| CN111394138B true CN111394138B (en) | 2025-02-07 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211999600U (en) * | 2020-04-28 | 2020-11-24 | 张勇刚 | Biomass Particle Pyrolysis Semi-Gasification Stove |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT372513B (en) * | 1979-06-28 | 1983-10-25 | Berthiller Franz | METHOD AND SYSTEM FOR BURNING STALKS, IN PARTICULAR. STRAW |
| US5895508A (en) * | 1996-08-09 | 1999-04-20 | The United States Of America As Represented By The United States Department Of Energy | Down-flow moving-bed gasifier with catalyst recycle |
| CN105805727B (en) * | 2016-03-14 | 2018-10-30 | 中国矿业大学 | Rice husk charcoal pyrolysis oven flue gas processing system |
| CN106635179B (en) * | 2017-01-23 | 2019-03-08 | 江苏华威机械制造有限公司 | A kind of technique and its device of recirculating fluidized bed and pyrolysis bed combined gasification |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN211999600U (en) * | 2020-04-28 | 2020-11-24 | 张勇刚 | Biomass Particle Pyrolysis Semi-Gasification Stove |
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