CN201801497U - Household straw gasification furnace capable of eliminating coking and burn-out phenomena - Google Patents

Household straw gasification furnace capable of eliminating coking and burn-out phenomena Download PDF

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Publication number
CN201801497U
CN201801497U CN2010201004187U CN201020100418U CN201801497U CN 201801497 U CN201801497 U CN 201801497U CN 2010201004187 U CN2010201004187 U CN 2010201004187U CN 201020100418 U CN201020100418 U CN 201020100418U CN 201801497 U CN201801497 U CN 201801497U
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China
Prior art keywords
furnace
burn
grate
furnace body
coking
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Expired - Fee Related
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CN2010201004187U
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Chinese (zh)
Inventor
郭建华
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Chongqing University of Technology
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Chongqing University of Technology
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Priority to CN2010201004187U priority Critical patent/CN201801497U/en
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Publication of CN201801497U publication Critical patent/CN201801497U/en
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Expired - Fee Related legal-status Critical Current

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Abstract

Aiming to the defects and problems during the use of the conventional straw gasification furnace in market, the utility model provides a household straw gasification furnace capable of eliminating coking and burn-out phenomena. The furnace body of the household straw gasification furnace comprises a hearth, a thermal insulating layer, and a furnace wall; a furnace lid and a water tight trough are arranged at the upper part of the furnace body; the generated fuel gas discharges from a fuel gas outlet, part of the water vapor in the fuel gas is condensed into water after cooling down, and the water flows out of the furnace body from the fuel gas outlet through an inclined water guide trough circling the upper part of the furnace body; the lower part of the furnace body comprises an air inlet, an ash chamber, an ash outlet, a gas distribution hole, a fixed grate and a movable grate, air reaches an oxidizing layer in the furnace from the air inlet after passing through a clearance between the grates and the ring-shaped gas distribution hole at the lower part of the furnace body, the fixed grate is arranged at the bottom of the hearth and the movable grate is arranged below the fixed grate; and in case of the furnace slag coking or the straw burn-out and burn-through, the movable grate can be drawn to eliminate the coking, burn-out and burn-through phenomena. The utility model has the benefits of simple structure, reliability in working, and convenience in operation.

Description

A kind of twin furnace grid stalk gasifier of eliminating coking and the empty phenomenon of burning
Affiliated technical field
The utility model relates to a kind of family expenses stalk gasifier that utilizes agricultural crop straw, agricultural byproducts waste, Chai Xin etc. to act as a fuel to produce the inflammable gas of cleaning, cheap, environmental protection, especially can solve fuel in the gasifying stalk process coking, burn in sky and the stove problem such as water vapour eliminating.
Background technology
Stalk gasifier is a fuel with agricultural crop straw, agricultural byproducts waste, Chai Xin etc., under anoxia condition, by the chemical pyrolysis reaction conversions is inflammable gas, can be numerous urban residents provides the energy of cleaning, cheapness, environmental protection, is widely used in urban residents' cooking, shower, heating in winter, agricultural byproducts oven dry, the drying of wood etc.
The gasifying stalk The Application of Technology can solve the handling problem of agricultural crop straw, agricultural byproducts waste well; Solve urban residents' daily life energy problem, the quality of making the life better.Vigorously promote the use stalk gasifier, meet the energy environment protection policy of current national energy-saving and emission-reducing, also meet the policy of nation-building new socialist countryside.
At present, the patented technology of relevant stalk gasifier is a lot, and the product that puts goods on the market is quite a few, but unsatisfactory from the situation of market feedback, reason is that some technical problems do not solve, as the slag coking, burn emptyly burn, combustion gas is coal-tar middle oil with separating of moisture etc.Ash content behind the different gasifying stalks is coking easily at a certain temperature, can stop up vaporized chemical (air, oxygen, water vapour etc.) passage after the coking, has a strong impact on normally carrying out of gasification; Stalk is in gasification, because volatile matter is drained with combustion gas, the stalk volume reduces and forms certain space (burn sky, even burn), and the anoxycausis condition has been destroyed in this space, and the composition in the combustion gas is changed, and influences the quality of combustion gas; Stalk is in gasification, and stove contains a large amount of water vapour, is condensed on the fuel of falling again behind the moisture in the stove, if the moisture in the stove can not in time be got rid of, can cause the burning and the ignition difficulties of combustion gas, and fuel gases calorific value reduces.
The utility model patent provides a kind of family expenses stalk gasifier that addresses the above problem.
Summary of the invention
In order to solve some defectives and the problem that existing stalk gasifier in use exists on the market, the utility model proposes a kind of family expenses stalk gasifier of eliminating coking and burning empty phenomenon, also the intravital moisture of stalk gasifier can be discharged smoothly, this The Application of Technology can improve the working reliability and the aerogenesis quality of stalk gasifier.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: the gutter that has gradient around inboard wall of furnace body is set on the top of vapourizing furnace burner hearth, the lower-most point of gutter connects gas outlet, the pyrolysis chemical reaction takes place and produces the mixed combustible gas body in stalk under the effect of oxygen, wherein contain a certain amount of water vapour, temperature descended (reducing to 100 ℃~300 ℃ by 500 ℃~600 ℃) when inflammable gas rose, and water vapour is met and is condensed into water after cold and falls in the gutter and flow out body of heater by gas outlet; In the bottom of vapourizing furnace burner hearth upper and lower two grates being set, is fixing grate above, has only horizontal fire bars, is the moveable grate below, and movable grate also is provided with several equally distributed setting fire bars except horizontal fire bars is arranged.When the slag coking appears in stalk gasifier at work, by moving movable grate, the fire bars of its setting can destroy coking smoothly, pulverize and the ash entrance chamber that falls, and when vapourizing furnace occurs burning empty or burns, move movable grate, but the fuel in the fire bars rabbling roaster of its setting, the fuel of stove internal upper part can fall and fill up the cavity rapidly, handles the works better that (opening the works better that bell can interrupt vapourizing furnace) can recover stalk gasifier thereby need not open bell.
The beneficial effects of the utility model are, when the slag coking appears in stalk gasifier at work, by moving movable grate, coking can be destroyed smoothly, pulverizes and the ash entrance chamber that falls, and when appearance burning sky burns, move movable grate and can eliminate the cavity rapidly, handle the works better that (opening the works better that bell can interrupt vapourizing furnace) can recover stalk gasifier thereby need not open bell.During stalk gasifier work, contain a large amount of water vapour in the combustion gas in the stove, temperature descended when combustion gas was risen, and was condensed into water after the water vapour chance is cold and flowed out body of heater by the gutter that has gradient around upper of furnace body by gas outlet, the timely discharge of moisture helps the raising of combustion gas quality in the stove.The utility model is simple in structure, and reliable operation is easy to operate, and is respond well.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model stalk gasifier structural representation.
Fig. 2 is fixing grate structure vertical view.
Fig. 3 is movable grate structure vertical view.
Fig. 4 is movable grate section of structure.
Fig. 5 is the vertical view when fixedly grate and movable grate are overlapping.
1. furnace chambers among the figure, 2. burner hearth, 3. thermofin, 4. furnace wall, 5. bell, 6. handle, 7. blast inlet, 8. gas outlet, 9. air distribution hole, 10. ash output hole, 11. watertight sealing grooves, 12. gutters, 13. fixing grate, 14. movable grates, 15. horizontal fire bars, 16. erect fire bars, grey chambers 17..
Embodiment
In Fig. 1, gas blower blasts air in the grey chamber (17) of vapourizing furnace bottom through blast inlet (7), air is evenly reasonably sent into the interior oxidation zone of vapourizing furnace via grate (13,14) gap and annular air distribution hole (9), the pyrolysis chemical reaction takes place and produces the mixed combustible gas body in stalk under the effect of oxygen, wherein contain a certain amount of water vapour, temperature descended when inflammable gas rose, and water vapour is met and is condensed into water after cold and falls into around the gutter that has gradient (12) of upper of furnace body and by gas outlet (8) and flow out body of heater.The grate part is by fixedly grate (13) and movable grate (14) two portions are formed, fixedly has only horizontal fire bars on the grate (13), its structure vertical view as shown in Figure 2, drawing together has horizontal fire bars (15) and erects fire bars (16) on the grate (14), its structure is shown in Fig. 3,4, and the vertical view when fixedly grate (13) and movable grate (14) are overlapping as shown in Figure 5.When the slag coking appears in stalk gasifier at work, by moving movable grate (14), erectting fire bars (16) can destroy coking smoothly, pulverize and the ash entrance chamber that falls (17), and when appearance burning sky burns, move movable grate (14), erect fire bars (16) and can eliminate the cavity rapidly, handle the works better that (opening the works better that bell can interrupt vapourizing furnace) can recover stalk gasifier thereby need not open bell (5) with fuel generation stirring.

Claims (2)

1. can eliminate coking and burn the family expenses stalk gasifier of empty phenomenon for one kind, oven body part comprises burner hearth (2), thermofin (3), furnace wall (4), upper of furnace body is provided with bell (5), watertight locked groove (11), the bottom of body of heater comprises blast inlet (7), air distribution hole (9), ash output hole (10), fixedly grate (13) and movable grate (14), grey chamber (17), it is characterized in that: fixedly grate (13) is last, movable grate (14) is following, and movable grate (14) is made up of horizontal fire bars (15) and setting fire bars (16).
2. family expenses stalk gasifier according to claim 1 is provided with gutter (12) in upper of furnace body, it is characterized in that: around the gutter that has gradient (12) of upper of furnace body inwall, its lower-most point connects gas outlet (8) and locates.
CN2010201004187U 2010-01-22 2010-01-22 Household straw gasification furnace capable of eliminating coking and burn-out phenomena Expired - Fee Related CN201801497U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201004187U CN201801497U (en) 2010-01-22 2010-01-22 Household straw gasification furnace capable of eliminating coking and burn-out phenomena

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201004187U CN201801497U (en) 2010-01-22 2010-01-22 Household straw gasification furnace capable of eliminating coking and burn-out phenomena

Publications (1)

Publication Number Publication Date
CN201801497U true CN201801497U (en) 2011-04-20

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Application Number Title Priority Date Filing Date
CN2010201004187U Expired - Fee Related CN201801497U (en) 2010-01-22 2010-01-22 Household straw gasification furnace capable of eliminating coking and burn-out phenomena

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103074115A (en) * 2013-01-28 2013-05-01 陈全明 Device for producing coal gas with sawdust
CN104130802A (en) * 2014-08-07 2014-11-05 湖南湘丰技术有限公司 Biomass gasification furnace with furnace fuel gas cooling function
CN108865283A (en) * 2018-06-04 2018-11-23 武汉工程大学 A kind of multipurpose biomass fixed-bed gasification furnace fire grate
CN111944561A (en) * 2020-08-28 2020-11-17 江苏嘉林新能源科技有限公司 Biomass gasification fixed bed with burn-through prevention function

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103074115A (en) * 2013-01-28 2013-05-01 陈全明 Device for producing coal gas with sawdust
CN103805287A (en) * 2013-01-28 2014-05-21 陈全明 Device for producing coal gas by using sawdust
CN103805287B (en) * 2013-01-28 2016-02-03 陈全明 A kind of device utilizing wood chip to produce coal gas
CN104130802A (en) * 2014-08-07 2014-11-05 湖南湘丰技术有限公司 Biomass gasification furnace with furnace fuel gas cooling function
CN108865283A (en) * 2018-06-04 2018-11-23 武汉工程大学 A kind of multipurpose biomass fixed-bed gasification furnace fire grate
CN111944561A (en) * 2020-08-28 2020-11-17 江苏嘉林新能源科技有限公司 Biomass gasification fixed bed with burn-through prevention function

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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: 20110420

Termination date: 20130122

CF01 Termination of patent right due to non-payment of annual fee