CN201137973Y

CN201137973Y - Firewood stalk gasifying stove

Info

Publication number: CN201137973Y
Application number: CNU2007201741533U
Authority: CN
Inventors: 陈德祥
Original assignee: DEXIANG CAICAO STRAW GASIFICATION STOVE PLANT
Current assignee: DEXIANG CAICAO STRAW GASIFICATION STOVE PLANT
Priority date: 2007-10-10
Filing date: 2007-10-10
Publication date: 2008-10-22
Anticipated expiration: 2017-10-10

Abstract

The utility model discloses a firewood straw gasification stove, specifically organic matters such as firewood, straw and the like are conversed into combustible gas in the furnace and then are delivered into a gas kitchen range which is specially made to burn. The firewood straw gasification stove comprises a chassis (1), a stove body outer casing (2), a stove body inner container (3), a flame band bridge (4), a draughty fan (5), a stove cover (6) and filters (7), (8). The utility model is characterized in that the chassis (1) in a hearth is equipped with a stove head (9), the roof of the stove head (9) takes circular arch shape, the lateral face is provided with a plurality of gas holes, which has no holes on the roof, the stove head (9) is provided with an oxygen feeding hole (10), whose lateral face is provided with an ash hole (11), a heat-insulating layer (13) is arranged between a stove casing (2) and the stove body inner container (3), an ash hole (14) and a heating pipe (5) are arranged under the stove body, the upper portion is provided with an air outlet pipe (16), and the inlets of each channel are provided with valve to control air inlet and air outlet. The firewood straw gasification stove does not need igniting after primary ignition is succeed, which has low processing cost and excellent gasification effect, and environment is purified, and energy source is saved.

Description

The faggot stalk gasifier

Technical field:

The utility model belongs to a kind of faggot straw gasifying stove and accessory, specifically organic matters such as faggot, stalk is converted into the gas-cooker burning of delivering to special making behind the imflammable gas in stove.

Background technology:

At present, coal gas or gas fuel have all been used in many cities, this not only makes the urban air environment be greatly improved, and bring great convenience to life, the resident is as long as open gas stove switch one, the dish of cooking of can heating up water, not only simple and convenient but also sanitation and hygiene, but in vast rural area, sparsely populated, unlikelyly all gas piping or natural gas line are led to every family, best bet is to gather materials on the spot, the various discarded gasifiable feedstocks of farmers' are converted into imflammable gas, this gasifiable raw material comprises faggot, sawmilling, husk, wood shavings, corncob, the beans bar, cotton stalk, sesame straw, wheat straw, peanut shell, the trees fallen leaves, food bacterium discarded object ox, sheep, horse argol or the like, the every peasant household of these discarded objects can collect several very heavy every year at least, if imflammable gas with its gasification generation, can need for the annual combustion gas of every peasant household completely, for the gasifiable feedstock that these farmers' are discarded is converted into imflammable gas, many people think hard designing various gasification furnaces, as utility model patent " ignition-type stalk gasifier automatically ", application number 200620051195.3; " a kind of biological fuel gas stalk gasifier ", application number 200620051365.8, these gasification furnaces all are that to utilize stalk, rice husk, faggot, wood chip etc. be raw material, under anaerobic conditions, imperfect combustion, make organic matter resolve into imflammable gas such as carbon monoxide, methane, ethane rapidly, after purifying, use for gas-cooker.In the prior art, otherwise simple in structure, but used certain problem, otherwise complex structure, the cost height.

Summary of the invention:

The purpose of this utility model is to invent a kind of cost simple in structure faggot stalk gasifier low but easy to use, allows vast countryside and peasantry afford to use well.

Principle of the present utility model, be under the situation of oxygen deprivation high temperature, to make organic combustible imperfect combustion in stove, resolve into carbon monoxide, methane, ethane, carbon, steam, carbon dioxide, materials such as tar, steam is got back in the stove through arch form bell (7) condensation, produce flammable carbon monoxide and the hydrogen of reduction reaction generation with red-hot carbon, red-hot carbon and carbon dioxide generating reduction reaction generate flammable carbon monoxide, tar is got back to the decomposition that burns away in the stove through 7 condensations of circular arch type bell, the unnecessary water of bell 7 condensations flows to the body of heater inner bag along circular arch and is absorbed by inner bag, so the gas that comes out in faggot stalk gasifier gas outlet 14 mainly is carbon monoxide, hydrogen, imflammable gas such as methane have a spot of tar and steam to filter and can remove through

filter

15 and 16 condensations.

Faggot stalk gasifier of the present utility model from Figure of description as can be known, comprise base 1, be contained in the body of heater shell 2 on the base 1, body of heater inner bag 3, stove bottom grate 4, the blower fan 5 that stove is outer, the bell 6 on the furnace roof and the filter 7 of gas outlet, 8, it is characterized in that in the burner hearth of body of heater inner bag, being equipped with on the base 1 stove head 9, there are many pores the circular arch type side of stove head 9, but atresia on the top, stove head 9 has oxygenation port 10, there is ash hole 11 stove head side, between shell 2 and body of heater inner bag 3, be heat-insulation layer 13, there is ash hole 14 the body of heater bottom by grate 4 positions, gas-adding pipe 15 is arranged at the body of heater bottom, escape pipe 16 is arranged at top, between bell 6 and body of heater, have and coil 17 on the seal cover, last dish 17 hollow diameters are slightly less than the diameter of body of heater inner bag 3, valve control air inlet is arranged and give vent to anger in the import of each pipeline and outlet.

Body of heater inner bag 3 is to add 2 by refractory cement and seat clay to form, and when moisture content was excessive in the stove, material had hygroscopicity, can at once fire in the stove not drenched and put out, and does not also readily conduct heat the temperature in the favourable maintenance body of heater simultaneously.

High and the body of heater internal diameter of body of heater will have certain proportion, and the ratio of warp is that 1.5: 1 combustion gasification effects are best in evidence stove height and body of heater.

Bell 6 is processed into the circular arch type, helps the condensation of steam and tar, reduces steam and tar content from escape pipe 16 output combustion gas, makes combustion gas purer, reduces environmental pollution, makes filtration device structure become more simple, only filters with air setting to get final product.

In order to strengthen the heat insulation effect of body of heater, except that having the heat-insulation layer between body of heater shell and body of heater inner bag, furnace bottom also has heat-insulation layer 18.

Bell 6 is processed into the circular arch type, as pot cover, helps the condensation of steam and tar.

The utlity model has following characteristics:

1. need not light a fire when use every day after once lighting a fire successfully, because the furnace insulation performance is good, the Mars of ash content parcel during blowing out is in case during the blower fan air-supply, can revive again again.

2. gasification result is good, and the per kilogram stalk can produce 2m ³Combustion gas.

3. heat-insulation layer 13 body of heater internal layers 3 all are nonmetallic materials, through cost accounting, and the hundreds of units of this gasification furnace cost, the peasant affords to use.

4. aboundresources, the raw material range broadness that this gasification furnace is suitable for, comprise faggot, sawdust, husk, wood shavings, corncob, beans stalk, cotton stalk, sesame stalk, argol of wheat straw, straw, branch, fallen leaves, waste edible fungus gurry, ox, sheep, horse or the like, peasant household has thousands of jin every year at least, and enough the annual combustion gas of each tame peasant household is used.

5. energy savings, environment purification.After using gasification furnace, can need not burn coal fully, both saved and purchased the coal money, purified environment simultaneously, use the gasification furnace user only to need in burner hearth, to adorn 6-8 jin faggot and can do a family's food of one day of five mouthfuls of people and a domestic water, be not subjected to the weather condition restriction, with traditional coal kitchen range relatively, energy savings, economy, to one's profit.As burn a kettle 6kg boiling water and only need 6-8 minute, the pig feed that boils one pot of 25Kg of heat only needs 45～50 minutes, the most important thing is that it has changed the situation of kitchen, rural area " smoke fire bake the people " fully, makes peasant household liberate oneself from the cooking of traditional cooking stove backwardness.

Description of drawings:

Accompanying drawing is a faggot stalk gasifier schematic diagram, 1. bases among the figure, 2. body of heater shell, 3. body of heater inner bag, 4. grate, 5. blower fan, 6. bell, 7. filter 1,8. filter 2,9. stove head, 10. oxygenation port, 11. stove head side ash holes, 13. heat-insulation layer, 14. ash holes, 15. gas-adding pipes, 16. escape pipes, 17. dish on the seal cover (dish on the abbreviation), 18. furnace bottom heat-insulation layers, 19. gate valves, 1,20.

gate valve

2,21. gate valve 3,22. gate valves 4,23. gate valves 5,24. gate valves 6.

The specific embodiment:

The utility model is described in further detail describes below in conjunction with accompanying drawing, and as shown in the figure, the faggot stalk gasifier comprises base 1, and three legs are arranged on the base 1, and chassis 1 material is a metal, and the insulation material of the heat-insulation layer 18 on the base is MgCl ₂And Al ₂O ₃Mixture, the body of heater shell 2 and the body of heater inner bag 3 that are contained on the base 1 are cylindrical, grate 4 is laid in the stove bottom, grate is circular, the foot of support is arranged below, the certain space distance is arranged between grate and the bottom refractory, the interspersed stove head 9 of circular hole in the middle of the grate, stove has a 40W blower fan outward, the air-supply of blower fan enters body of heater by gate valve 9 gas-adding pipes 15, furnace roof has bell 6, bell is a dome-shaped, gas outlet 16 is arranged at stove top, gas outlet connects

filter

7,8 these all be the structure of general stove, the burner hearth that it is characterized in that the body of heater internal layer is equipped with stove head 9 at interior the end, there are many pores the dome-shaped side of stove head 9, atresia on the top, favourable faggot stalk evenly burns, stove head 9 has oxygenation port 10 and stove head side ash hole 11, between shell 2 and body of heater inner bag 3, be heat-insulation layer 13, there is ash hole 14 the body of heater bottom by the position of grate 4, gas-adding pipe 15 is arranged at the body of heater bottom, escape pipe 16 is arranged at top, has between bell 6 and body of heater and coils 17 on the seal cover, valve control air inlet is arranged in each conduit entrance and exit and gives vent to anger.Last dish 17 hollow diameters are slightly less than the diameter of body of heater inner bag 3.The wind of blower fan 5 also can be delivered to furnace end of gas cooker by valve 20 and pipeline except that delivering to the gasification furnace through valve 19 and gas-adding pipe 15.Filter 1 and filter 2 usefulness pipelines are connected, combustion gas is delivered to furnace end of gas cooker through valve 24, when water in the filter or tar arrive to a certain degree, can discharge by

valve

22 and 23, body of heater internal layer 3 is by refractory cement and seat clay processing, help moisture absorption and keep furnace temperature, reduce cost, stove ratio high and the body of heater internal diameter is 1.5: 1, and bell 6 is processed into the circular arch type, and apart from body of heater inner bag certain distance, favourable steam and tar condensing.

The concrete use operated: 1. preoperation inspection is debugged fan power, and whether adjust switch flexible, and whether the pipe joint degree of tightness leaks gas, and then the faggot stalk is dropped in the stove, and faggot stalk water content must not surpass 20%, feeds in raw material 20～30 centimeters high.

2. closed ash hole 14,12,

gate valve

22,23,24 is opened

gate valve

19,21, light with waste paper then, throw in the burner hearth, put into 1～2 kilogram of combustibles again, after naked light burns half a minute, turn off blower fan 5, the faggot stalk is filled it up with burner hearth, charging basket is opened blower fan after real with waddy, after 1～3 minute, dense smoke 21 was discharged 1～2 minute from the chimney gas outlet.

3. close chimney 21,

open gate valve

24,20, directly put the gas-cooker burner with lighter and get final product.

Claims

1. faggot stalk gasifier, comprise base (1), be contained in the body of heater shell (2) on the base (1), body of heater inner bag (3), the grate (4) of stove bottom, blower fan (5) and the bell (6) on the furnace roof that stove is outer and be contained in the filter (7) at furnace gas export place, (8), it is characterized in that being equipped with on the base in the burner hearth of body of heater internal layer (1) stove head (9), on the circular arch type side of stove head (9) many pores are arranged, atresia on the top, stove head (9) has oxygenation port (10), the stove head has side ash hole (11), between furnace shell (2) and body of heater inner bag (3), be heat-insulation layer (13), there is ash hole (14) the body of heater bottom by grate (4) position, gas-adding pipe (15) is arranged at the body of heater bottom, escape pipe (16) is arranged at top, dish (17) on the seal cover is arranged between bell (6) and body of heater, last dish (17) hollow diameters is slightly less than the diameter of body of heater inner bag (3), valve control air inlet is arranged and gives vent to anger in the import of each pipeline and outlet.

2. a kind of faggot stalk gasifier according to claim 1 is characterized in that body of heater inner bag (3) is to be processed by refractory cement and seat clay.

3. a kind of faggot stalk gasifier according to claim 1 is characterized in that the ratio 1.5: 1 of the high and stove internal diameter of stove.

4. a kind of faggot stalk gasifier according to claim 1 is characterized in that bell is the circular arch type.

5. a kind of faggot stalk gasifier according to claim 1 is characterized in that heat-insulation layer (18) is also arranged on the stove base.

6. a kind of faggot stalk gasifier according to claim 1 is characterized in that bell (6) is processed into the circular arch type, similar pot cover.