CN201024154Y

CN201024154Y - Stalk gasification oven

Info

Publication number: CN201024154Y
Application number: CNU2007201065827U
Authority: CN
Inventors: 刘天行
Original assignee: 刘一峰
Priority date: 2007-02-14
Filing date: 2007-02-14
Publication date: 2008-02-20
Anticipated expiration: 2017-02-14

Abstract

The utility model discloses a straw gasification furnace, comprising an air producing furnace, a cooling purification device and a burner. The air producing furnace comprises a furnace body which is provided with a material inlet at the upper part and an ash outlet at the bottom part; the air producing furnace is also connected with a fuel gas fan; an inner container is arranged in the furnace body, and an interlayer is arranged between the furnace body and the inner container; the upper part of the inner container is a cylinder, and the lower part is an inverted cone; the air producing furnace is connected with an air regulating pipe which is provided with a regulating valve; the top of the air producing furnace is provided with a material press handle, and an inclined angle iron is arranged at the handle; a furnace cover is positioned on the material inlet, and a sealing ring is arranged at the circumference of the furnace cover; the cooling purification device contains purification liquid, and the bottom of the cooling purification device is provided with a water sealing drain pipe I; a tube fitting I of the water sealing drain pipe I has a break angle I; a connection main pipe is installed between the air producing furnace and the cooling purification device; a tube fitting of the connection main pipe is inserted under the liquid surface of the cooling purification device; a fuel gas pipe is arranged between the cooling purification device and the burner; a manual plate tuning valve is positioned at the fuel gas pipe.

Description

A kind of stalk gasifier

[technical field]

The utility model relates to a kind of stalk gasifier, relates in particular to a kind of producer of stalk gasifier.

[background technology]

In the last few years, along with fast development of national economy, China for the demand of the energy also in growth at full speed, in vast Rural areas, the contradiction of energy supply and demand anxiety is just more outstanding, because relative city, Rural areas is still less-developed, is difficult to the higher fuel such as Sweet natural gas of use cost as main fuel; And the mode that traditional burning coal, firewood act as a fuel can produce a large amount of nitride, sulfide and dust impurity, causes severe contamination, thus people press for a kind of can substitute the cleaning of coal, firewood, at a low price, New-type fuel safely and efficiently.By stalk combustion decomposition gasification under anoxia condition is produced inflammable gas is an emerging in recent years energy technology that is applicable to the rural area, the Rural areas can produce a large amount of stalks in agriculture production, therefore adopt the gasifying stalk technology not only with low cost, and the gas component that produces behind the gasifying stalk is with methane, hydrogen and carbon monoxide are main, its product mainly is water and carbonic acid gas behind the fuel gas buring, do not produce sulfide and nitride, can effectively alleviate environmental pollution, but in the prior art, the stalk gasifier that gasifying stalk is converted into inflammable gas exists certain defective, at first, the producer body of heater of stalk gasifier is a single layer structure, cause the high temperature and the external world that produce when making gas in the producer constantly to carry out heat exchange, reduced the thermo-efficiency of producer; Secondly, because in gasifying stalk, stalk must decompose at heating flame under the anaerobic environment could produce combustion gas, the compacting of stalk need being tried one's best when therefore in the producer of stalk gasifier, dosing stalk, extrude the air of accumulating between stalk, its anoxycausis under the situation that can't fully contact oxygen is decomposed, and its burner hearth of traditional stalk gasifier is a cylindrical cavity, be difficult for the stalk compacting, in gas-making process, can cause quite a few stalk aerobic burning, aerobic burning not only can cause the waste of stalk material, and the high temperature that produces of aerobic burning also can cause the structural distortion of producer body of heater, reduces the work-ing life of producer even causes danger.

[utility model content]

Technical problem to be solved in the utility model is to provide a kind of stalk gasifier, this stalk gasifier has changed the furnace binding of producer in the existing stalk gasifier, make the stalk can be after inserting producer by abundant compacting, thereby make stalk in producer, carry out anoxycausis more fully, improved the gas gasification transformation efficiency of stalk, made stalk gasifier energy-saving safe more.

For realizing this purpose, the technical solution adopted in the utility model is: a kind of stalk gasifier, comprise producer, cooling purifier and burner, described producer comprises body of heater, and described upper of furnace body is provided with opening for feed, the bottom is provided with ash output hole, also be connected with the combustion gas blower fan on the described producer, it is characterized in that: be provided with inner bag in the described body of heater, be provided with interlayer between body of heater and the inner bag, described inner bag top is right cylinder, and the bottom is a reverse taper.

Further, be provided with refractory insulating layer in the described interlayer.

Further, be connected with the adjusting airduct on the described producer, described adjusting airduct is provided with variable valve.

Further, described body of heater top is provided with the gland handle, and described gland handle is provided with the inclined-plane angle bar.

Further, described opening for feed is provided with bell, and the bell edge is provided with sealing-ring.

Further, be connected by being connected house steward between described body of heater and cooling purifier, described connection house steward's tube head inserts under the liquid level of scavenging solution in the cooling purifier.

Further, be connected by gas line between described cooling purifier and the burner, also be provided with manual flap valve on the described gas line.

Improved, in the described cooling purifier scavenging solution is housed, the cooling purifier bottom is provided with water seal blow-off pipe I, and the tube head I of described water seal blow-off pipe I is provided with knuckle I.

Improved, described burner bottom is provided with water seal blow-off pipe II, and the tube head II of described water seal blow-off pipe II is provided with knuckle II.

The utility model adopts above-mentioned technical scheme, has changed the furnace binding of producer in the existing stalk gasifier, is provided with inner bag in the body of heater of producer, is provided with interlayer between body of heater and inner bag; And it is the inner-tube structure of reverse taper for the right cylinder bottom that existing circular cylindrical cavity burner hearth is changed into top, be more convenient for the stalk material compacting, thereby make it in the producer inner bag, carry out the abundant gasification of anoxycausis and be inflammable gas, not only improved the utilization ratio of stalk, and double-deck producer furnace binding also makes stalk gasifier energy-saving safe more in use, satisfactory for result, be adapted at vast Rural areas more and use.

[description of drawings]

Fig. 1 is the front view of the utility model stalk gasifier;

Fig. 2 is the side-view of Fig. 1;

Fig. 3 is the vertical view of Fig. 1;

Fig. 4 is the sectional view of Fig. 1;

Fig. 5 is the sectional view of Fig. 2.

[embodiment]

As Fig. 1,2,3,4, shown in 5, a kind of stalk gasifier of the utility model, by producer 1, cooling purifier 2 and burner 3 connect and compose, body of heater 11 tops of producer 1 are provided with opening for feed 13, the bottom of body of heater 1 is provided with ash output hole 14, on producer 1, also be connected with combustion gas blower fan 4, described producer 1 is a bilayer structure, in the body of heater 11 of producer 1, be provided with inner bag 12, form interlayer between body of heater 11 and the inner bag 12, described inner bag 12 tops are right cylinder, the bottom is a reverse taper, difference to temperature when carrying out anoxycausis in can the producer according to the stalk gasifier of different purposes in the interlayer requires to fill the insulating refractory that is fit to, as only being the stalk gasifier that uses in the family, for gas cloud can reach satisfactory effect of heat insulation,, then need in interlayer, dose the thermofin of refractory materials in the interlayer if some users are carried out the large-scale stalk gasifier of central gas supply.Because after stalk adds producer 1, need carry out anoxycausis under the anaerobic environment in the producer 1 decomposes to gasify and is combustible carbon monoxide, methane and hydrogen, and the producer burner hearth of the existing stalk gasifier isometrical right cylinders up and down that adopt more, therefore stalk is difficult for being compacted after adding, make and accumulated more air between stalk, thereby what the stalk that considerable part is arranged in gas-making process carried out is the aerobic burning, this defective has not only caused the waste of stalk, and thereby the higher relatively temperature that produces of aerobic burning also causes the distortion of producer furnace binding to be damaged easily even produces danger, therefore the inner bag 12 employing tops of described producer 1 are right cylinder, the bottom is the structure of reverse taper, adopt this structure, after stalk inserted from opening for feed 13, because the inner bag bottom is a reverse taper, can be easy and convenient stalk is tightly compacted in inner bag 12, when having solved in the past the producer burner hearth and having adopted up and down isometrical right cylinder, the difficult stalk aerobic incendiary defective that the stalk compacting is caused of user, improved the utilization ratio of stalk, also avoided the aerobic burning to make the destruction of the high temperature of generation for the producer inner bag.

In the utility model; also be provided with on the producer 1 and regulate airduct 19; regulating airduct 19 is connected with the inner bag 12 of producer 1; regulate airduct 19 and be provided with variable valve 191; what of the air capacity that enters producer variable valve 191 can control; in gas-making process; if oxygen too lacks in the producer; then can make stalk can't burn or burn at all very slow; thereby cause stalk gasifier can't make gas or system gas speed is slow; influence is normal to be used; therefore on producer, be provided with and regulate airduct 19 and variable valve 191, in gas-making process as when finding that system gas slowly or not generates combustion gas, can suitably regulate variable valve 19 air in certain amount is entered in the producer; thereby accelerate system gas speed, the convenient use.

As a kind of improvement to prior art, gland 15 edges at opening for feed 13 are provided with sealing-ring 16, sealing-ring 16 can be made with refractory materials, adopt this structure, make that the resistance to air loss of producer is better, outside air can not enter by opening for feed and cause the burning of stalk aerobic, and the combustion gas that produces in the producer can not cause toxic gas gas leakage such as carbon monoxide from the opening for feed effusion yet, not only effectively raise gas making efficiency, existing simultaneously stalk producer has improved security.As another kind of improvement the of the present utility model, on the gland handle 17 at producer body of heater 11 tops, welded inclined-plane angle bar 18, increased the counterweight of gland handle 17, thus more easy and convenient by gland handle 17 compacting stalks the time.

In the utility model, when decomposing through anoxycausis, the stalk in the producer 1 gasifies to behind the inflammable gas, because the inflammable gas temperature is very high, and in the inflammable gas that generates except carbon monoxide, hydrogen, outside the combustiblecomponentss such as methane, also contain dust impurity, objectionable constituent such as tar, can not directly use, so must be with gas cooling, could be fit to use after removing the objectionable constituent in the gas, therefore the inflammable gas that produces in producer 1 need enter by the connection house steward 21 on the producer 1 and carry out cooling and purifying in the cooling purifier 2, contain cooling and purifying liquid in the cavity of cooling purifier 2, general family adopts cold water can reach the effect of cooling and purifying as cooling and purifying liquid when using, as of the present utility model a kind of preferred, the tube head that the connects house steward 21 liquid level certain depth of cooling and purifying liquid that should submerge, after the inflammable gas that produces in the producer 1 feeds the cooling and purifying liquid by connection house steward 21 under pressure, because the tube head that connects house steward 21 is under the liquid level of cooling and purifying liquid, the inflammable gas of generation and the duration of contact of cooling and purifying liquid have been prolonged, therefore inflammable gas can be sufficiently cooled, objectionable constituent in the inflammable gas also can fully be adsorbed, the technology of more existing employing filtering net not only cooling and purifying is effective, and cost is lower.The bottom of cooling purifier 2 is provided with water seal blow-off pipe I24, the tube head I place of water seal blow-off pipe I24 is provided with knuckle I25 upwards, after cooling purifier work for some time, because scavenging solution has wherein adsorbed a large amount of tar, impurity such as ashes, can carry out blowdown this moment by water seal blow-off pipe I24, and can store a certain amount of scavenging solution among the knuckle I25 that makes progress of tube head I, when not needing blowdown at ordinary times, the scavenging solution that is stored among the knuckle I25 can be avoided spilling of tar ashes, and environment for use is cleaned more.

Can reach the requirement of direct use by the gas behind cooling purifier 2 cooling and purifyings, be provided with gas line 26 at cooling purifier 2 tops, gas line is connected with burner 3, inflammable gas through cooling and purifying can use on burner 3, but inevitably, still also has a spot of tar and ashes impurity through purified gas, therefore also be provided with water seal blow-off pipe II31 in the bottom of burner 3, the tube head II place of water seal blow-off pipe II31 is provided with knuckle II32 upwards equally, to reach the effect of avoiding the tar ashes to spill.

Existing stalk gasifier is after stopping using, for some time and produce combustion gas because the residue stalk in the producer will burn, therefore can in producer and cooling purifier, accumulate a certain amount of compressed gas, when the user opens opening for feed when reinforced once more, causing trapped gas to go out easily causes danger, be head it off, in the utility model, be circumscribed with chimney 23 on the gas line 26, chimney 23 is connected by manual flap valve 22 with gas line 26, manually flap valve 22 upwards turns over and can cut out chimney 23 and open gas line 26, makes the combustion gas of generation enter burner by gas line, burns on burner 3; After not needing to use combustion gas, thereby manual flap valve 22 can be turned over downwards and close gas line 26, open chimney 23 simultaneously, the combustion gas of accumulating in cooling purifier 2 and the producer 1 is discharged from chimney 23 under pressure, reach the inside and outside weighing apparatus that flattens, solved the danger that in producer 1, to accumulate after stopping using in the existing stalk producer in the use that a certain amount of compressed gas causes.

The utility model preferably resolves the technological deficiency that exists in the existing stalk gasifier owing to adopt above-mentioned technology, and is easy to use, and straw utilization rate height is convenient to cleaning, and energy-saving safe is adapted at vast Rural areas and uses.

Conspicuous, embodiment of the present utility model only is to illustrating of technical scheme and non-limiting, as the utility model being done simple change and in fact still being adopted structure of the present utility model, still in protection domain of the present utility model.

Claims

1. stalk gasifier, comprise producer (1), cooling purifier (2) and burner (3), described producer (1) comprises body of heater (11), described body of heater (11) top is provided with opening for feed (13), and the bottom is provided with ash output hole (14), also is connected with combustion gas blower fan (4) on producer (1), it is characterized in that: be provided with inner bag (12) in the described body of heater (11), be provided with interlayer between body of heater (11) and the inner bag (12), described inner bag (12) top is right cylinder, and the bottom is a reverse taper.

2. a kind of stalk gasifier according to claim 1 is characterized in that: be provided with refractory masses in the described interlayer.

3. a kind of stalk gasifier according to claim 1 is characterized in that: be connected with on the described producer (1) and regulate airduct (19), described adjusting airduct (19) is provided with variable valve (191).

4. according to claim 1 or 3 described a kind of stalk gasifiers, it is characterized in that: body of heater (11) top of described producer (1) is provided with gland handle (17), and described gland handle (17) is provided with inclined-plane angle bar (18).

5. a kind of stalk gasifier according to claim 1 is characterized in that: described opening for feed (13) is provided with bell (15), and bell (15) edge is provided with sealing-ring (16).

6. a kind of stalk gasifier according to claim 1 is characterized in that: described cooling purifier is equipped with scavenging solution in (2), and the cooling purifier bottom is provided with water seal blow-off pipe I (24), and the tube head I of described water seal blow-off pipe I (24) is provided with knuckle I (25).

7. according to claim 1 or 6 described a kind of stalk gasifiers, it is characterized in that: be connected by being connected house steward (21) between described producer (1) and the cooling purifier (2), described connection house steward's (21) tube head inserts under the liquid level of the interior scavenging solution of cooling purifier (2).

8. a kind of stalk gasifier according to claim 1 is characterized in that: be connected by gas line (26) between described cooling purifier (2) and the burner (3), described gas line (26) is provided with manual flap valve (22).

9. according to claim 1 or 8 described a kind of stalk gasifiers, it is characterized in that: described burner (3) bottom is provided with water seal blow-off pipe II (31), and the tube head II of described water seal blow-off pipe II is provided with knuckle II (32).