CN102031151A - Anti-clogging biomass gasification combustor - Google Patents
Anti-clogging biomass gasification combustor Download PDFInfo
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- CN102031151A CN102031151A CN2010105621236A CN201010562123A CN102031151A CN 102031151 A CN102031151 A CN 102031151A CN 2010105621236 A CN2010105621236 A CN 2010105621236A CN 201010562123 A CN201010562123 A CN 201010562123A CN 102031151 A CN102031151 A CN 102031151A
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Abstract
The invention provides an anti-clogging biomass gasification combustor. The combustor comprises a cavity and a hollow cylindrical combustion chamber, wherein the combustion chamber is communicated with a material feeding tube and an escape pipe; an air chamber is arranged between the cavity and the combustion chamber and is connected with an air pipe; the air pipe is connected with an air adjuster; and an air inlet is formed on the combustion chamber. Air enters the air chamber from the air pipe and then enters the combustion chamber from the air inlet to supplement the needed proper amount air and adjust the temperature in the combustion chamber. Because the air inlet amount of the air pipe is adjusted through the air adjuster, the air inlet amount can be reduced when the temperature in the combustion chamber is more than 1,000 DEG C; ash does not reach the melting point and avoid slagging because of the high temperature; the difficulty in cleaning solidified dregs is eased; and the disturbance on cyclone in the combustion chamber, which is caused by excessive deposited ash and does not contribute to cyclone dust removal, is eliminated.
Description
Technical field
The invention belongs to energy preparation field, specifically relate 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.And existing combustion technology mainly is fire grate grate firing burning and fluidized bed combustion, wherein, adopting the shortcoming of fire grate grate firing enamelware pot is that fuel combustion is incomplete, thermo-efficiency is low, having to adopt under pyritous burning or the pyrolytical condition, and the ash that produces (silicon-dioxide and some metal-salts) is surpassing slagging scorification easily under 1000 ℃ the situation, the accumulated slag amount is as too much, can stop up the combustion chamber, influence combustion efficacy.And the employing fluid-bed combustion furnace generally only is to be applied to large-sized boiler, and its investment is huge, and the production cost height can not be tried hard to recommend application greatly in medium-sized and small enterprises.
Summary of the invention
In order to solve the problem that prior art exists, the invention provides a kind of biomass burner that can prevent the slagging scorification of biomass ash.
Technical scheme of the present invention is as follows: burner of the present invention, comprise cavity, the throat less chamber of hollow, the combustion chamber is communicated with feed-pipe and escape pipe, has air chamber between described cavity and the combustion chamber, and described air chamber is connected with airduct, described airduct connects ventilating regulator, an intake opening has been opened in described combustion chamber, and wind enters air chamber from tracheae and enters the combustion chamber through intake opening, to replenish required proper amount of gas and the combustion chamber internal temperature is regulated.
The axial inwall of described intake opening and the cross section inwall of combustion chamber are tangent, and the wind of air chamber tangentially enters the combustion chamber from intake opening, and the self-forming whirlwind carries out centrifugation to ash.
Described escape pipe is horizontally set at the center of combustion chamber, and the left end of escape pipe places the combustion chamber to be built-in end, and the right-hand member of escape pipe stretches out and is external part outside the combustion chamber.
The tube wall of the built-in end of described escape pipe is provided with some through holes.
Described escape pipe is horizontally set at the center of combustion chamber, and the inlet of escape pipe is connected with the outlet of combustion chamber.
Described air chamber is provided with dividing plate, and dividing plate is divided into secondary air chamber and tertiary chamber with air chamber, and described tracheae is made up of secondary tracheae and three tracheaes; Described secondary air chamber is connected with secondary air channel, the inlet of secondary air channel connects ventilating regulator, described combustion chamber offers an intake opening, the axial inwall of described intake opening and the cross section inwall of combustion chamber are tangent, wind enters air compartment from secondary air channel and tangentially enters the combustion chamber through intake opening, and the self-forming whirlwind replenishes required air for the combustion chamber and the combustion chamber internal temperature is regulated; Described tertiary chamber is connected with tertiary-air pipe; The tube wall of the external part of described escape pipe offers production well; Described tertiary chamber is communicated with production well.
The outer setting of described cavity has thermal insulation layer, and the main body of described combustion chamber is a flame retardant coating.
Also comprise lighter for ignition and explosive door.
Described burner offers fire door, and described fire door is equipped with bell, and the top of described fire door is provided with form.
Also include the base that can make burner move or load and unload, be used for the detection means of detected temperatures.
The present invention is owing to be provided with air compartment, the oxygen of timely aftercombustion chamber, simultaneously, the air output of airduct is regulated by ventilating regulator, when the temperature of combustion chamber surpasses 1000 ℃, can reduce air output, make lime-ash can not reach molten point and slagging scorification by Yin Gaowen, both alleviated the difficulty of cleaning slagging scorification, eliminated because of depositing too much lime-ash whirlwind in the combustion chamber is formed to disturb be unfavorable for the whirlwind ash disposal again.
In addition, because wind tangentially enters in the columnar combustion chamber from blast pipe or intake opening, can the self-forming whirlwind, the ash of biological fuel gas is separated.This structure, the biogas of making does not need ash disposal separately, has reduced processing step, has saved the time for preparing clean biological fuel gas, has also saved ash handling equipment, has reduced production cost.
Description of drawings
Fig. 1 is the internal structure of burner of the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is the structural relation synoptic diagram of feed-pipe and combustion chamber;
Fig. 5 is the structural relation synoptic diagram of intake opening and combustion chamber;
Fig. 6 is the cross sectional representation of escape pipe.
Embodiment
This burner is a heat-storage type burner, and the diameter of combustion chamber is 0.8m, and capacity is 0.75m
3As Figure 1-3, this burner is made up of base 12, cavity 20, thermal insulation layer 11, flame retardant coating 9, lighter for ignition 18, feed-pipe 15, secondary air channel 19, dividing plate 5, tertiary-air pipe 17, escape pipe 8, bell 10, form 1 and explosive door 13.The burner body structure is by base 12 support fixation.Cavity 20 is hollow circle tube, the accumbency setting.The inside of cavity 20 is provided with flame retardant coating 9, and this flame retardant coating 9 also is the hollow cylinder structure.The hollow cylinder structure of flame retardant coating 9 has formed combustion chamber 2.Combustion chamber 2 is communicated with the axial inwall of this feed-pipe 15 and the lateral cross section inwall of combustion chamber 2 tangent (as Fig. 4) with the feed-pipe 15 that cavity 20 is provided with.The inwall of the outer wall of flame retardant coating 9 and cavity 20 has the space, and this space has formed air compartment.The inside of cavity 20 and in the left side of flame retardant coating 9 is provided with thermal insulation layer 11.The left end of combustion chamber 2 is provided with a fire door, and by bell 10 sealings.Be positioned at the top of fire door, also be provided with a form 1, be used to observe the combustion case in the burner, the unusual phenomenon when in time finding burning.The axis direction of combustion chamber 2 and be positioned at right side place arranged transversely one escape pipe 8 of combustion chamber 2, escape pipe 8 and combustion chamber 2 concentric settings, this escape pipe 8 is the direct piping of both ends open, the diameter of pipeline is 0.4m.It is built-in end that the left end of escape pipe 8 inserts in 2 inside, combustion chamber, the distance of the inner left wall of the left port of built-in end and combustion chamber 2 is 500mm, the right-hand member of escape pipe 8 extends outside the combustion chamber 2 and exposes to outside the cavity 20 is external part, and the external part of escape pipe 8 is connected with the inlet of boiler (not shown).The external part tube wall of escape pipe 8 offers 8 and discharges pore 16 (as Fig. 6), and every discharge pore 16 is evenly arranged on the cross section of escape pipe 8, and the quantity of every discharge pore 16 is 3, and production well 16 is communicated with tertiary chamber 6.Space between the inwall of the outer wall of flame retardant coating 9 and cavity 20 has formed air compartment, be divided into secondary air chamber 4 and tertiary chamber 6, secondary air chamber 4 and tertiary chamber 6 are separated by dividing plate 5, and dividing plate also plays the effect of supporting the combustion chamber except forming secondary air chamber 4 and tertiary chamber 6.The outside of secondary air chamber 4 connects secondary air channel 19, and the inlet of secondary air channel 19 connects ventilating regulator, and ventilating regulator can be chosen butterfly valve (not shown) etc.One intake opening 14 is set, the axial inwall of this intake opening 14 and the lateral cross section inwall of combustion chamber 2 tangent (as Fig. 5) between secondary air chamber 4 and the combustion chamber 2.The outside of tertiary chamber 6 connects tertiary-air pipe 17.Burner is provided with lighter for ignition 18, when working first, utilizes coal gas ignition that the combustion chamber is risen 400 ℃, begins the whirlwind charging then.Also be provided with temperature detection device in the combustion chamber 2, can be thermopair 3, be used for measuring the furnace temperature of combustion chamber, generally surpass 1000 ℃ and promptly report to the police.Open bell 10 and just can conveniently be cleaning lime-ash in the combustion chamber 2.Base 12 can make things convenient for the dismounting of burner and move.Explosive door 13 is in order to prevent the burner hypertonia, when internal pressure of combustion chamber surpasses 0.01Mpa, opens the explosive door relief pressure, can prevent superpressure and blasts and cause Peril Incident.
The working process of burner is as follows: at first initial igniter 18, after the burning room temp reaches more than 400 ℃, biomass material is after crushed tangentially blown into combustion chamber 2 from feed-pipe 15 by a wind, in combustion chamber 2 through forming biological fuel gas and some biomass ashes (as silicon-dioxide and metal-salt etc.) behind 1 to 2 second high temperature (900～1000 ℃) gasification, and combustion.In combustion processes, because a wind is tangentially to enter the combustion chamber, therefore can in columnar combustion chamber 2, form whirlwind, under the centrifugal action of whirlwind, the grey separated and following bottom that is sunken to the combustion chamber that burning generates, the clean biological fuel gas of combustion chamber 2 axis centre then enters in the boiler by escape pipe 8.Simultaneously, 19 pairs of secondary air chambers of secondary air channel 4 continue air-supply, and enter combustion chamber 2 by intake opening 4 tangential air-supplies, form whirlwind with the required oxygen of gasification incomplete combustion in the aftercombustion chamber 2.Through burning after a while,, then can reach fusion point of ash and slagging scorification easily if the temperature in the combustion chamber 2 surpasses 1000 ℃.After thermopair 3 detects too high temperature, reduce the air quantity that enters secondary air chamber 4 with butterfly valve control, thereby reduce the combustion chamber amount of oxygen, be lower than 1000 ℃ to guarantee the burning room temp.Before clean biological fuel gas enters boiler, also biological fuel gas is replenished air (oxygen), promptly tertiary air enters tertiary chamber from tertiary-air pipe 17, mixes with biological fuel gas by tertiary air, make and together enter fully burning in the boiler, to obtain boiler of feeding burning more heat.
Claims (10)
1. biomass gasification fired device of anti-slagging scorification, comprise cavity, the throat less chamber of hollow, combustion chamber are communicated with feed-pipe and escape pipe, it is characterized in that, has air chamber between described cavity and the combustion chamber, described air chamber is connected with airduct, and described airduct connects ventilating regulator, and an intake opening has been opened in described combustion chamber, wind enters air chamber from tracheae and enters the combustion chamber through intake opening, to replenish required proper amount of gas and the combustion chamber internal temperature is regulated.
2. burner according to claim 1 is characterized in that, the axial inwall of described intake opening and the cross section inwall of combustion chamber are tangent, and the wind of air chamber tangentially enters the combustion chamber from intake opening, and the self-forming whirlwind carries out centrifugation to ash.
3. burner according to claim 1 and 2 is characterized in that described escape pipe is horizontally set at the center of combustion chamber, and the left end of escape pipe places the combustion chamber to be built-in end, and the right-hand member of escape pipe stretches out and is external part outside the combustion chamber.
4. burner according to claim 3 is characterized in that the tube wall of the built-in end of described escape pipe is provided with some through holes.
5. burner according to claim 1 is characterized in that described escape pipe is horizontally set at the center of combustion chamber, and the inlet of escape pipe is connected with the outlet of combustion chamber.
6. burner according to claim 3 is characterized in that described air chamber is provided with dividing plate, and dividing plate is divided into secondary air chamber and tertiary chamber with air chamber, and described tracheae is made up of secondary tracheae and three tracheaes; Described secondary air chamber is connected with secondary air channel, the inlet of secondary air channel connects ventilating regulator, described combustion chamber offers an intake opening, the axial inwall of described intake opening and the cross section inwall of combustion chamber are tangent, wind enters air compartment from secondary air channel and tangentially enters the combustion chamber through intake opening, and the self-forming whirlwind replenishes required air for the combustion chamber and the combustion chamber internal temperature is regulated; Described tertiary chamber is connected with tertiary-air pipe; The tube wall of the external part of described escape pipe offers production well; Described tertiary chamber is communicated with production well.
7. burner according to claim 1 is characterized in that the outer setting of described cavity has thermal insulation layer, and the main body of described combustion chamber is a flame retardant coating.
8. burner according to claim 1 is characterized in that, also comprises lighter for ignition and explosive door.
9. burner according to claim 1 is characterized in that described burner offers fire door, and described fire door is equipped with bell, and the top of described fire door is provided with form.
10. burner according to claim 1 is characterized in that, also includes the base that can make burner move or load and unload, and is used for the detection means of detected temperatures.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010562123 CN102031151B (en) | 2010-11-25 | 2010-11-25 | Anti-clogging biomass gasification combustor |
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| CN 201010562123 CN102031151B (en) | 2010-11-25 | 2010-11-25 | Anti-clogging biomass gasification combustor |
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| CN102031151A true CN102031151A (en) | 2011-04-27 |
| CN102031151B CN102031151B (en) | 2013-03-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588951A (en) * | 2012-03-21 | 2012-07-18 | 德清县华恒涂装设备有限公司 | Biomass burner |
| CN103436295A (en) * | 2013-08-09 | 2013-12-11 | 黄龙辉 | Method for preparing combustible gas from biomass fuel |
| CN103925593A (en) * | 2013-01-16 | 2014-07-16 | 戴增池 | Efficient biomass vortex burner |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2476716Y (en) * | 2001-04-16 | 2002-02-13 | 张德地 | Gasification combustion stove using solid fuel |
| CN201181013Y (en) * | 2008-03-26 | 2009-01-14 | 娄劲松 | Air suction type gasification furnace |
| US20090224209A1 (en) * | 2007-11-19 | 2009-09-10 | Jacobus Eilers | Process to prepare a mixture of hydrogen and carbon monoxide |
| CN201857369U (en) * | 2010-11-25 | 2011-06-08 | 广州迪森热能技术股份有限公司 | Anti-slagging biomass gasifying burner |
-
2010
- 2010-11-25 CN CN 201010562123 patent/CN102031151B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2476716Y (en) * | 2001-04-16 | 2002-02-13 | 张德地 | Gasification combustion stove using solid fuel |
| US20090224209A1 (en) * | 2007-11-19 | 2009-09-10 | Jacobus Eilers | Process to prepare a mixture of hydrogen and carbon monoxide |
| CN201181013Y (en) * | 2008-03-26 | 2009-01-14 | 娄劲松 | Air suction type gasification furnace |
| CN201857369U (en) * | 2010-11-25 | 2011-06-08 | 广州迪森热能技术股份有限公司 | Anti-slagging biomass gasifying burner |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588951A (en) * | 2012-03-21 | 2012-07-18 | 德清县华恒涂装设备有限公司 | Biomass burner |
| CN103925593A (en) * | 2013-01-16 | 2014-07-16 | 戴增池 | Efficient biomass vortex burner |
| CN103436295A (en) * | 2013-08-09 | 2013-12-11 | 黄龙辉 | Method for preparing combustible gas from biomass fuel |
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| Publication number | Publication date |
|---|---|
| CN102031151B (en) | 2013-03-20 |
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Denomination of invention: Anti slagging biomass gasification burner Effective date of registration: 20220401 Granted publication date: 20130320 Pledgee: Agricultural Bank of China Limited Guangzhou Liuhua sub branch Pledgor: GUANGZHOU DEVOTION THERMAL TECHNOLOGY Co.,Ltd. Registration number: Y2022980003837 |