CN204224547U - Low-suction type organism-gasifying furnace - Google Patents
Low-suction type organism-gasifying furnace Download PDFInfo
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- CN204224547U CN204224547U CN201420676413.7U CN201420676413U CN204224547U CN 204224547 U CN204224547 U CN 204224547U CN 201420676413 U CN201420676413 U CN 201420676413U CN 204224547 U CN204224547 U CN 204224547U
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- 239000000446 fuel Substances 0.000 claims abstract description 56
- 239000002028 Biomass Substances 0.000 claims abstract description 52
- 239000000463 material Substances 0.000 claims abstract description 43
- 239000007789 gas Substances 0.000 claims abstract description 33
- 238000002485 combustion reaction Methods 0.000 claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 239000002918 waste heat Substances 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 18
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 9
- 238000002309 gasification Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 241001494479 Pecora Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005502 peroxidation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
Classifications
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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
-
- 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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- Solid-Fuel Combustion (AREA)
Abstract
The utility model discloses a kind of low-suction type organism-gasifying furnace, for biomass burning raw material production geseous fuel, it comprises: upper furnace body, its sidewall is provided with some air inlet ports for introducing combustion air; Lower furnace body, is arranged on the below of upper furnace body; Air feeder, is communicated with described air inlet port, comprises the combustion-supporting steam of setting ratio and the combustion-supporting gas of combustion air for providing for the burning of biomass material, and the waste heat that described combustion-supporting steam is carried by geseous fuel is as the device fabrication of thermal source; Take-off equipment, is arranged on described lower furnace body, for exporting the rear geseous fuel generated of described biomass material reaction.Low-suction type organism-gasifying furnace in the utility model, introduces combustion-supporting gas by side entering type, solves biomass material and to burn uneven problem.By comprising the combustion-supporting gas of steam, reduce a nitrogen content in geseous fuel.Use geseous fuel waste heat to produce combustion-supporting steam, saved the energy, saved equipment cost.
Description
Technical field
The utility model relates to a kind of biomass-making that uses for the vapourizing furnace of geseous fuel, belongs to renewable resource utilization field.
Background technology
Biomass energy is a kind of desirable renewable energy source, because it is widely distributed, be conducive to the features such as environmental protection, thus more and more receives the concern of countries in the world.Biomass gasification technology biomass material being generated after the series reaction such as burning geseous fuel is a kind of important way utilizing biomass energy.Biomass gasification technology utilizes biomass material, such as: agricultural crop straw, forest tree castoff, edible fungi residues, cattle and sheep animal manure etc. carry out gasification and transform into inflammable gas, thus substitutes liquefied gas, coal gas equal energy source as life production gas.At present, usually use low-suction type organism-gasifying furnace to gasify to biomass material, biomass material is through chemical reactions such as peroxidation, reduction, cracking in vapourizing furnace, and finally generating major ingredient is the geseous fuel of CO.
As shown in Figure 2, low-suction type organism-gasifying furnace of the prior art comprises: the upper furnace body 101 being positioned at biomass gasifying furnace top, be positioned at the lower furnace body 102 below upper furnace body, be positioned at the grate 103 bottom upper furnace body 101, for to export after gasifying biomass produce the take-off equipment of geseous fuel 8, comprise the output channel 104 that is communicated with lower furnace body 102 and be arranged on output channel 104, for providing the first air pump 7 of power for the output of geseous fuel 8.
During work, first, biomass material 5 is rendered in upper furnace body 101, after opening the first air pump 7, first air pump 7 unlatching, due to its suction function, air is entered by the top of upper furnace body 101, enters into lower furnace body 102 by biomass material, is discharged subsequently by output channel 104.Subsequently, lighted by biomass material in bottom, when after flameholding, biomass material can be divided into three parts according to its burning degree: superposed layer 501 to be combusted, be positioned at its underpart zone of combustion 502 and be positioned at bottom grieshoch 503.Suction enters into the air of biomass material namely as combustion-supporting gas, for the burning of biomass material, after its burning, geseous fuel 8 of producing is also under the suction function of the first air pump 7, to be delivered in subsequent handling to be further processed by lower furnace body 102 through output channel 104.
Above-mentioned low-suction type organism-gasifying furnace, although can geseous fuel be prepared, but due to its combustion-supporting gas mainly air, and the content of oxygen only accounts for 21% in air, and the content of nitrogen is 78%, because the chemical property of nitrogen is more stable, not easily decompose, so, containing a large amount of nitrogen in the geseous fuel that low-suction type organism-gasifying furnace produces, inflammable gas ratio is not high, and the quality of geseous fuel is lower.
Utility model content
In order to solve the problem that in geseous fuel that low-suction type organism-gasifying furnace in prior art produces, the non-combustible gas content such as nitrogen is higher, the utility model provides a kind of low-suction type organism-gasifying furnace of improvement, it sets up air feeder on the basis of existing low-suction type organism-gasifying furnace, uses the combustion-supporting gas of mixture as the utility model low-suction type organism-gasifying furnace of air and water vapor; While ensureing normally the carrying out of biomass material gasification reaction, a nitrogen content that biomass material burns in the geseous fuel that generates can also be reduced.
The utility model also utilizes the waste heat entrained by geseous fuel as the thermal source of combustion-supporting production of steam, the geseous fuel cooling also for exporting while save energy.And low-suction type organism-gasifying furnace structure provided by the utility model is simple, easy for installation, is not only suitable for and produces with new installation, be also applicable to the transformation of old equipment.
For solving the problem, technical scheme provided by the utility model is:
A kind of low-suction type organism-gasifying furnace, for biomass burning raw material production geseous fuel, this vapourizing furnace comprises:
Upper furnace body, its sidewall is provided with some air inlet ports for introducing combustion-supporting gas;
Lower furnace body, is arranged on the below of described upper furnace body;
Air feeder, be communicated with described air inlet port, comprise the combustion-supporting steam of setting ratio and the mixing combustion-supporting gas of combustion air for providing for the burning of described biomass material, the waste heat that described combustion-supporting steam is carried by described geseous fuel is as the device fabrication of thermal source;
Take-off equipment, is communicated with described lower furnace body, for exporting the rear geseous fuel generated of described biomass material reaction.
Further, described air inlet port is uniform along described upper furnace body sidewall circumference.
Further, described air feeder comprises steam input device and air delivery arrangement, and described steam input device comprises for the production of the steam generator of combustion-supporting steam and the some steam input pipe roads of delivery of steam to described upper furnace body for producing; Described air delivery arrangement comprises for providing the air supplying device of combustion air and for combustion air being input to the some air inlet duct roads in upper furnace body.
Further, described steam generator is steam boiler.
Further, one end, described steam input pipe road is communicated with described air inlet port, and the other end is communicated with described steam generator; Combustion-supporting steam is entered in described upper furnace body by described steam input pipe road and described air inlet port after being exported by steam generator.
Further, it is an input channel that described steam input pipe road and described air inlet duct road converge before described air inlet port, enters into described upper furnace body again after described combustion-supporting steam is mixed in described input channel with combustion air.
Further, described take-off equipment comprises and to be communicated with described lower furnace body, for the output channel that exported by described geseous fuel be arranged on described output channel, for exporting for described geseous fuel the first air pump providing power.
Further, described output channel is communicated with described steam generator, is input in steam generator by described geseous fuel.
Further, the sidewall of described upper furnace body is also provided with some viewing windows for observing stove combustion situation.
Further, described some viewing windows are uniform along described vapourizing furnace sidewall circumference.
Low-suction type organism-gasifying furnace in the utility model, by setting up air feeder on existing low-suction type organism-gasifying furnace, the plenum system of existing low-suction type organism-gasifying furnace is entered by top and enters instead by sidewall, can avoid, because biomass material nonunf ormity hinders different and zone of combustion that is that cause to burn uneven problem everywhere to combustion-supporting gas, making geseous fuel quality more stable.And will in prior art, use air as combustion-supporting gas, change into and use steam and air gas mixture as combustion-supporting gas, not only greatly reduce a nitrogen content in geseous fuel, and combustion-supporting steam can to gasify C, CO, CO of producing with biomass material
2reaction produces inflammable gas, and make the inflammable gas content in geseous fuel more, quality is higher.
In addition, the utility model also utilizes the waste heat entrained by geseous fuel as the thermal source of combustion-supporting production of steam, both saves the energy, is also geseous fuel cooling.By above-mentioned transformation, low-suction type organism-gasifying furnace in the utility model is burnt more abundant everywhere, and it is more even to burn everywhere, avoid the generation of " burning " phenomenon, and by introducing water vapor in combustion-supporting gas, greatly reduce a nitrogen content that biomass material burns in the geseous fuel that generates, improve the quality of geseous fuel.And it is simple that the low-suction type organism-gasifying furnace in the utility model also has structure, easy for installation, the advantages such as the low and practicality of cost of manufacture is stronger.
Accompanying drawing explanation
Fig. 1 uses biomass-making for the system architecture schematic diagram of geseous fuel;
Fig. 2 is low-suction type organism-gasifying furnace structural representation in prior art;
Fig. 3 is low-suction type organism-gasifying furnace structural representation (part sectioned view) in the utility model;
Fig. 4 is low-suction type organism-gasifying furnace schematic diagram (sectional view) in the utility model.
In figure: 1. vapourizing furnace; 101. upper furnace body; 102. lower furnace body; 103. grate; 104. output channel; 105. bell; 106. air inlet port; 107. viewing window; 108. steam input pipe roads; 109. air inlet duct roads; 110. input channel; 2. refining plant; 3. drying installation; 4. gas-holder; 5. biomass material; 501. layers to be combusted; 502. zone of combustion; 503. grieshoch; 504. steam isolating layer; 6. combustion-supporting gas; The combustion-supporting steam of 6a.; 6b. combustion air; 7. the first air pump; 8. geseous fuel; 9. steam generator.
Embodiment
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 3,4, a kind of low-suction type organism-gasifying furnace in the utility model comprises: upper furnace body 101, lower furnace body 102, bell 105, air feeder and take-off equipment.Upper furnace body 101 is arranged on the top of lower furnace body 102, and the output terminal of air feeder is communicated with upper furnace body 101, for providing at upper furnace body 101 combustion biomass material the mixing combustion-supporting gas 6 comprising combustion-supporting steam 6a and combustion air 6b.Ratio between combustion-supporting steam 6a in combustion-supporting gas 6 and combustion air 6b can adjust according to the concrete quality of biomass material, and the inflammable gas content in the geseous fuel 8 generated after making burning is the highest.
As shown in Figure 3,4, bell 105 is arranged on the top of upper furnace body 101, when biomass material thrown in by needs, opens it, after input, is closed by bell 105, it should be noted that and do not need to seal between bell 105 and upper furnace body 101.Biomass material is combustion generated gas fuel 8 in upper furnace body 101.Some air inlet ports 106 are arranged on the sidewall of upper furnace body 101, and combustion-supporting gas 6, for coordinating with the output terminal of air feeder, imports in upper furnace body 101 by some air inlet ports 106; Preferably, some air inlet ports 106 are uniform along the circumference of upper furnace body 101 sidewall.The ash that the bottom that grate 103 is arranged on upper furnace body 101 generates for being burnt by biomass material in upper furnace body 101 leaks in lower furnace body 102.In addition, for better observing the combustion case of upper furnace body 101 endogenous substance raw material, the sidewall of upper furnace body 101 is also provided with some viewing windows 107; Preferably, some viewing windows 107 are uniform along the sidewall circumference of upper furnace body 101.
As shown in Figure 3,4, lower furnace body 102 is arranged on the below of upper furnace body 101, and the ash that upper furnace body 101 combustion produces will be fallen in lower furnace body by grate 103, and the geseous fuel 8 produced that burns also will be exported by take-off equipment through lower furnace body 102.
As shown in Figure 3,4, air feeder comprises steam input device and air delivery arrangement.Steam input device is used for for providing combustion-supporting steam 6a at the biomass material of upper furnace body 101 combustion.Steam input device comprises: steam input pipe road 108, vapour pump, steam valve (not shown) and steam generator 9.Vapour pump and steam valve are all arranged on steam input pipe road 108.One end of steam-pipe 108 is communicated with air inlet port 106, and the other end is communicated with steam generator 9.The combustion-supporting steam 6a that steam generator 9 produces, by the pumping of vapour pump, enters into the gasification reaction for biomass material in upper furnace body 101 through steam input pipe road 108 and air inlet port 106.The set-up mode in steam input pipe road 108 can be provided with an independently steam-pipe 108 for each air inlet port 106 correspondence, but also several air inlet ports 106 share a steam-pipe 108.
As shown in Figure 3,4, the waste heat entrained by geseous fuel 8 that steam generator 9 uses the biomass material in upper furnace body 101 to burn to produce is as thermal source, and geseous fuel 8 produces combustion-supporting steam 6a by carrying out heat exchange with the water in steam generator 9.Meanwhile, by the heat exchange in steam generator 9, the temperature of geseous fuel 8 is reduced; So both saved the energy for combustion-supporting steam 6a produces, and again reduced the output temperature of geseous fuel 8, independent cooling apparatus need not be set up, save facility investment.Preferably, steam generator 9 is steam boiler.Certainly in actual applications, all equipment water being converted to water vapor by heat exchange all can be applicable to this.
As shown in Figure 3,4, air delivery arrangement comprises: some air inlet duct roads 109, be arranged on the second air pump on each air inlet duct road and air supplying device (not shown).The one end in air inlet duct road 109 is communicated with air inlet port 106, and the other end is communicated with air supplying device.Combustion air 6b by air supplying device after filtration, export after the process such as preheating, is entered in upper furnace body 101 by air inlet duct road 109 and air inlet port 106.The set-up mode in air inlet duct road 109 can be provided with an independently air inlet duct road 109 for each air inlet port 106 correspondence, but also corresponding air inlet duct roads 109 of several air inlet ports 106.
Preferably, as shown in Figure 4, air inlet duct road 109 and steam input pipe road 108 use threeway to merge into an input channel 110 before air inlet port 106, and combustion air 6b and combustion-supporting steam 6a is mixed into combustion-supporting gas 6 in pipeline 110, and then enters into upper furnace body by air inlet port 106.For the burning of biomass material is combustion-supporting.
As shown in Figure 3,4, take-off equipment is arranged on lower furnace body 102 place, for exporting the rear geseous fuel 8 generated of biomass material burning.Take-off equipment comprises the output channel 104 for exporting geseous fuel 8 and is arranged on output channel 104, for providing the first air pump 7 of power for the output of geseous fuel 8.One end of output channel 104 is communicated with lower furnace body, and the other end is communicated with steam generator 9.Geseous fuel 8 is pumped to steam generator 9 thermal source input terminus by the first air pump 7, after geseous fuel 8 carries out heat exchange cooling in steam generator 9, then enters into subsequent handling and processes.
During work, first, bell 105 is opened, biomass material is put in upper furnace body 101, then bell 105 is closed.Subsequently, biomass material is lighted in its underpart, when after flameholding, according to the burning degree of biomass material, biomass material can be divided into layer 501 to be combusted, zone of combustion 502 and grieshoch 503 from top to bottom.Under the effect of the first air pump 7 and air feeder, combustion-supporting gas 6 enters zone of combustion 502 by some air inlet ports 106 of upper furnace body, auxiliary biomass material burning.The geseous fuel 8 generated after biomass material burning is pumped out by the below of upper furnace body 101 under the effect of the first air pump 7, by lower furnace body 102, enter into output channel 104, and finally enter into steam generation device 9, carry out heat exchange wherein, generate combustion-supporting steam 6a.Combustion-supporting steam 6a is entered in upper furnace body 101 by steam input pipe road.After the heat exchange at steam production plant 9, temperature reduces, and subsequently, is pumped in subsequent handling, is further processed.
Low-suction type organism-gasifying furnace of the present utility model by being provided with the air feeder of steam input device, change the combustion-supporting gas burnt using air as biomass material in the past for air and mixture of steam be combustion-supporting gas.And by the content of adjustment combustion air in combustion-supporting gas, normally carrying out of the gasification reaction of biomass material can be ensured, nitrogen content in the geseous fuel produced after can also reducing biomass material burning, improve the quality of geseous fuel, and then improve the production capacity of low-suction type organism-gasifying furnace entirety.In addition, be also used for combustion-supporting production of steam by the waste heat entrained by geseous fuel produced that burnt by biomass material as thermal source, both saved the energy, again reduced the temperature of the geseous fuel of output, saved equipment cost.
It is more than preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. a low-suction type organism-gasifying furnace, for biomass burning raw material production geseous fuel, it is characterized in that, described low-suction type organism-gasifying furnace comprises:
Upper furnace body, its sidewall is provided with some air inlet ports for introducing combustion-supporting gas;
Lower furnace body, is arranged on the below of described upper furnace body;
Air feeder, is communicated with described air inlet port, and for providing the mixing combustion-supporting gas of combustion-supporting steam and combustion air for the burning of described biomass material, the waste heat that described combustion-supporting steam is carried by described geseous fuel is as the device fabrication of thermal source;
Take-off equipment, is communicated with described lower furnace body, for exporting the rear geseous fuel generated of described biomass material reaction.
2. according to the vapourizing furnace described in claim 1, it is characterized in that, described air inlet port is uniform along described upper furnace body sidewall circumference.
3. according to the vapourizing furnace described in claim 1, it is characterized in that, described air feeder comprises steam input device and air delivery arrangement, and described steam input device comprises for the production of the steam generator of combustion-supporting steam and the some steam input pipe roads of delivery of steam to described upper furnace body for producing; Described air delivery arrangement comprises for providing the air supplying device of combustion air and for combustion air being input to the some air inlet duct roads in upper furnace body.
4. according to the vapourizing furnace described in claim 3, it is characterized in that, described steam generator is steam boiler.
5. according to the vapourizing furnace described in claim 3, it is characterized in that, one end, described steam input pipe road is communicated with described air inlet port, and the other end is communicated with described steam generator; Combustion-supporting steam is entered in described upper furnace body by described steam input pipe road and described air inlet port after being exported by steam generator.
6. according to the vapourizing furnace described in claim 3, it is characterized in that, it is an input channel that described steam input pipe road and described air inlet duct road converge before described air inlet port, enters into described upper furnace body again after described combustion-supporting steam is mixed in described input channel with combustion air.
7. according to the vapourizing furnace described in claim 3, it is characterized in that, described take-off equipment comprises and to be communicated with described lower furnace body, for the output channel that exported by described geseous fuel be arranged on described output channel, for exporting for described geseous fuel the first air pump providing power.
8. according to the vapourizing furnace described in claim 7, it is characterized in that, described output channel is communicated with described steam generator, is input in steam generator by described geseous fuel.
9. according to the vapourizing furnace described in claim 1, it is characterized in that, the sidewall of described upper furnace body being also provided with some viewing windows for observing stove combustion situation.
10. according to the vapourizing furnace described in claim 9, it is characterized in that, described some viewing windows are uniform along described vapourizing furnace sidewall circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420676413.7U CN204224547U (en) | 2014-11-13 | 2014-11-13 | Low-suction type organism-gasifying furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420676413.7U CN204224547U (en) | 2014-11-13 | 2014-11-13 | Low-suction type organism-gasifying furnace |
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| CN204224547U true CN204224547U (en) | 2015-03-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104357089A (en) * | 2014-11-13 | 2015-02-18 | 天津大明恒运再生能源利用科技有限公司 | Down-draft biomass gasification furnace |
| CN109111955A (en) * | 2018-08-14 | 2019-01-01 | 张振洋 | A kind of agricultural crop straw gaseous fuel preparation method |
-
2014
- 2014-11-13 CN CN201420676413.7U patent/CN204224547U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104357089A (en) * | 2014-11-13 | 2015-02-18 | 天津大明恒运再生能源利用科技有限公司 | Down-draft biomass gasification furnace |
| CN109111955A (en) * | 2018-08-14 | 2019-01-01 | 张振洋 | A kind of agricultural crop straw gaseous fuel preparation method |
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Granted publication date: 20150325 |