CN101196296A - Method and apparatus for biomass ebullition, gasification and combustion - Google Patents
Method and apparatus for biomass ebullition, gasification and combustion Download PDFInfo
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- CN101196296A CN101196296A CNA2007103000268A CN200710300026A CN101196296A CN 101196296 A CN101196296 A CN 101196296A CN A2007103000268 A CNA2007103000268 A CN A2007103000268A CN 200710300026 A CN200710300026 A CN 200710300026A CN 101196296 A CN101196296 A CN 101196296A
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Abstract
The invention relates to a biomass boiling gasification burning method and device, which is characterized in that: blow the biomass fuel from a material inlet of a gasification firebox to the gasification firebox; the biomass fuel boils under the action of a primary flow raising from the bottom of the gasification firebox; then the biomass fuel burns incompletely under boiling status after lighted up to generate with high temperature combustible gas which can be discharged by a gas burner for direct burning. The boiling gasification burning device comprises a feeding mechanism, an air supply mechanism and the gasification firebox; a gas burner for discharging high temperature fuel gas is arranged at middle upper section of the side wall of the gasification firebox; a discharging opening of the feeding mechanism is positioned on the side wall of the gasification firebox lower than the gas burned and is communicated with the gasification firebox; a wind arrangement device is arranged at bottom of the gasification firebox; the air supply mechanism provides the gasification firebox with the primary flow through the wind arrangement device, which is communicated with the discharging opening of the feeding mechanism through the a feeding air pipe.
Description
Technical field
The present invention relates to the Biomass Energy Utilization technical field, particularly a kind of biomass granule fuel ebullition, gasification combustion method and device thereof that is used for biomass fuels such as agricultural crop straw, wood chip, leaf and processes by biomass fuel.
Background technology
Living beings are compared with conventional energy resource, have that volatile matter content height, energy density are little, easy slagging scorification during burning, hardware had characteristics such as corrosion.Living beings existing when can equipment directly burning, because the design fuel of original equipment and the nature difference of living beings are bigger, often there are problems such as equipment is exerted oneself inadequately, combustion instability, as on former coal combustion equipment, directly burning living beings, because of the burner hearth of former boiler less, cause that the living beings volatile combustion is insufficient, the easy slagging scorification of ash content, heat exchanging device have disadvantages such as corrosion, can not normally move basically, and the direct firing biomass fuel of existing fuel oil and gas-fired equipment.
At present, a biolobic material equipment for gasification being arranged, is that biomass fuel is dropped in the burner hearth, is deposited in to carry out imperfect combustion on the grate, generates fuel gas, and combustion gas purifies the back collection storage by cleaning system, is transported to the gas-cooker terminal by pipeline again during use and lights.The purpose of this equipment for gasification is to produce fuel gas, is a kind of solid biomass to be converted into the materialization conversion equipment of gaseous fuel, but not burner, and when gas-purification, also have harmful components such as tar to separate out, cause second environmental pollution.
It is another kind of on the market that to utilize the equipment of living beings are biomass molding fuel combustion furnaces, be to utilize the living beings after the moulding to do fuel, manually add fuel off and on from charge door, be deposited in and carry out imperfect combustion on the grate, biomass fuel is gasification earlier under high temperature action, and the combustion gas of formation rises to fire door, meets the combustion-supporting gas after-combustion that secondary air duct provides at fire door, ashes behind the biomass combustion fall under the grate, by manually discharging from ash hole.Though this combustion furnace has adopted the second-time burning mode of living beings gasification after-combustions earlier, but it only can use biomass molding fuel, can improve the use cost of combustion furnace, and fuel burns in the mode of piling up on grate, in combustion process, the living beings carbon of unburnt fuel of part and formation can be discharged along with ashes fall under the grate together, causes certain waste and pollution; Manually intermittently reinforced and ash disposal has all increased the amount of labour in using, and use is inconvenient, and the flame instability that provides.This biomass combustion stove with the accumulation mode burning only is suitable for the miniaturization domestic burners, also is not suitable for the biomass gasification fired device of industrial applications at present.
Summary of the invention
The purpose of this invention is to provide a kind of biomass ebullition, gasification combustion method that is suitable for industrial applications, can carry out the ebullition, gasification burning the biomass fuel of certain particle size scope.
Another object of the present invention provides a kind of biomass ebullition, gasification burner that is suitable for industrial applications, can carry out the ebullition, gasification burning to the biomass fuel of certain particle size scope.
For achieving the above object, the present invention adopts following technical scheme: the biomass ebullition, gasification combustion method, it is indoor that biomass fuel is blown into gasification, and combustion from the charging aperture of gasification combustion chamber, under the effect of a general mood stream that rises in bottom, autopneumatolysis combustion chamber, and the biomass fuel boiling; After lighting, biomass fuel carries out imperfect combustion and generates the high-temperature combustible gas body under fluidized state, and the high-temperature combustible gas body is discharged directly burning by gas burner.
The high-temperature combustible gas body burns earlier with after secondary wind mixes in the gas burner exit again.
The biomass ebullition, gasification burner, comprise feeder, fan structure and gasification combustion chamber, be provided with in the middle and upper part of gasification combustion chamber's sidewall and be used for the gas burner that high-temperature fuel gas is discharged burning, the discharging opening of feeder is arranged at gasification combustion chamber's sidewall and is lower than on the position of gas burner and with gasification combustion chamber and communicates; The gasification combustion chamber bottom is provided with air-distribution device, and the fan structure provides general mood stream by air-distribution device one time to gasification combustion chamber, and the fan structure is communicated with the discharging opening of feeder by the feed airduct.
The fan structure is communicated with the exhaust passage of gas burner by secondary air channel.
Exit in the gas burner exhaust passage is provided with annular passage, the along the circumferential direction spaced apart tangent air inlet that is provided with on the internal ring wall of annular passage, and the air outlet of secondary air channel is positioned on the annular passage.
Described tangent air inlet is two rows, and the rotation direction of two row's tangent air inlets is opposite.
Described air-distribution device comprises the even case of pressing, and the even case of pressing is by being communicated with gasification combustion chamber as the air port on the air distribution plate on case top.
The fan structure comprises blower fan and the bellows that are communicated with blower fan, and bellows are communicated with the even case of pressing by an airduct, and the air inlet of feed airduct and secondary air channel all is communicated with bellows.
Described feeder comprises drive unit and the feed screw feeder that is driven by drive unit, and the charging aperture of feed screw feeder is provided with loading hopper, and the discharging opening of feed screw feeder is the discharging opening of feeder.
Described drive unit comprises motor, and motor is in transmission connection by shaft coupling and feed screw feeder.
Among the present invention, feeder cooperates the wind-force of feed airduct that biomass fuel is blown into gasification combustion chamber, because the indoor air capacity deficiency of gasification, and combustion, make biomass fuel carry out the incomplete oxidation Boiling Combustion, with the pyrolytic gasification of finishing the living beings volatile matter and the direct burning of fixed carbon, thereby produce a large amount of CO, CH
4Deng the high temperature fuel gas, make the indoor pressure of gasification, and combustion be slightly larger than atmospheric pressure simultaneously, the high-temperature combustible gas body is just discharged directly burning from gas burner automatically like this.
The present invention is provided with air-distribution device in the gasification combustion chamber bottom, evenly to the indoor wind ascending air that provides a time of gasification, and combustion, make the biomass fuel that enters in the gasification combustion chamber be in fluidized state, described fluidized state is meant biomass fuel, and outstanding to be dispersed in gasification combustion chamber aerial, and tumbling motion, do not lump, pile up, ash content is taken out of by air-flow behind the less biomass fuel combustion of particle diameter, and the bigger fuel of particle diameter burns away in that gasification, and combustion is indoor, the all burnt ash content is just discharged gasification combustion chamber with air-flow up to being gasified totally, gasification like this, combustion efficiency is good, and biomass combustion is complete, and efficiency of combustion can reach more than 95%.Charging gear can be supplied with gasification combustion chamber's fuel continuously, makes that fuel gas abundance, combustion gas flame are stable, temperature is high, provides guarantee to industrialized continuous production.The wind-force of feed airduct can evenly be blown into gasification combustion chamber to biomass fuel, provides the part air on the top of gasification combustion chamber simultaneously, to improve the temperature of gasification combustion chamber, makes burner stable.In addition,, can also control the internal temperature of gasification combustion chamber, make it not to be higher than 850 ℃, guarantee the indoor not slagging scorification of gasification, and combustion by adjusting the ratio of wind and feed wind.
Because the fixed carbon particle in the living beings has carried out abundant burning in that gasification, and combustion is indoor, the ash content in afterburnt just can be discharged with fuel gas, and the indoor ashless branch of gasification, and combustion accumulates, and manually ash disposal is easy to use.In addition, in the high-temperature fuel gas burning, the gaseous state tar that is blended in the high-temperature fuel gas also directly burns thereupon, no tar pollution; Surplus carbon in the ash content has also carried out second-time burning simultaneously, and burning back ash content carbon content is very low, can reach the urban atmosphere discharge standard.
Among the present invention, set up secondary air channel, the secondary wind that provides at the gas burner place with help combustible gas conflagration after fuel gas mixes, combustion flame is short, temperature is high.It is more full and uniform that the tangent air inlet of annular passage and two row's different directions makes that secondary wind mixes with fuel gas, and combustion efficiency is better.The even case of pressing makes a wind ascending air uniform and stable, guarantees that the indoor biomass fuel of gasification, and combustion is in uniform fluidized state all the time.
The present invention can burn moisture content less than 30%, size is less than the various biomass fuels of 30mm, all can use as corn stalk, rice husk, peanut shell, corncob, sawdust, wood shavings, papermaking waste material etc., no longer be subject to the moulding biomass fuel, the raw material applicability is extensive, and use cost is low.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the A-A cutaway view among Fig. 1.
The specific embodiment
Fig. 1, shown in Figure 2 be the biomass ebullition, gasification burner, comprise base 1, feeder, fan structure and be used for the gasification combustion chamber 9 of biomass ebullition, gasification, the locular wall of gasification combustion chamber 9 mainly is made of high-alumina refractory brick lining 16 and alumina silicate fibre outer lining 17.Be installed with the even case 11 of pressing on the side of base 1, the case top of this even pressure case is the air distribution plate 10 that has the air port, and gasification combustion chamber 9 is arranged on the air distribution plate 10, and the even case 11 of pressing communicates with gasification combustion chamber 9 by the air port on the air distribution plate.Be provided with the gas burner 8 that is used for high-temperature fuel gas discharge burning in the middle and upper part of gasification combustion chamber's 9 sidewalls, exit in the exhaust passage of gas burner is provided with annular passage 19, the air outlet of secondary air channel 14 is positioned on the annular passage, and this air outlet and annular passage are tangent; The along the circumferential direction spaced apart tangent air inlet 20 that is provided with on the internal ring wall of annular passage 19, tangent air inlet 20 has two rows, and the rotation direction of two row's tangent air inlets is opposite.Gas burner 8 has refractory concrete liner 18.
Above-mentioned feeder comprises feed screw feeder 6 and is fixedly arranged on motor 4 on the base 1 by motor frame 3 that motor 4 is in transmission connection by shaft coupling 5 and feed screw feeder 6; The charging aperture of feed screw feeder 5 is provided with loading hopper 7, the discharging opening of feed screw feeder 6 is arranged at gasification combustion chamber's sidewall and is lower than on the position of gas burner 8 and with gasification combustion chamber 9 and communicates, this discharging opening and gas burner 8 are relative and establish, certainly as required with both layings in a certain angle.
Above-mentioned fan structure comprises centrifugal high pressure fan 2 and the bellows 13 that are communicated with this fan outlet, bellows 13 are provided with feed airduct 12 and airduct 14, secondary air channel 15, the air outlet of feed airduct 12 is communicated with the discharging opening of feed screw feeder 6, the air outlet of an airduct 14 is communicated with the even case 11 of pressing, and the air outlet of secondary air channel 15 is communicated with the annular passage of gas burner 19; Be equipped with control valve on airduct 14, secondary air channel 15 and the feed airduct 12, centrifugal high pressure fan 2 and bellows 13 all are fixedly arranged on the base 1.During work, centrifugal high pressure fan 2 provides pressure-air for bellows 13, bellows 13 are divided into three strands to pressure-air, one enters even case 11, the process air distribution plate of pressing by an airduct 14 and enters formation ascending airs in the gasification combustion chamber 9, another strand by feed airduct 12 deliver to feed screw feeder discharging opening, that biomass fuel is blown into gasification, and combustion is indoor, make it to scatter, deliver to gas burner 8, mix combustion-supporting by secondary air channel 15 for the 3rd strand with the high-temperature fuel gas of discharging.
The present invention adds the loading hopper from feeder such as the biomass fuel below the 30mm such as corn stalk, rice husk, peanut shell, corncob, sawdust, wood shavings, papermaking waste material, motor-driven feed screw feeder continuously is delivered to gasification combustion chamber with fuel, discharging opening at the feed screw feeder, by the wind-force of feed airduct biomass fuel is blown in the ebullition, gasification combustion chamber that temperature is not higher than 850 ℃, and evenly scatter, simultaneously a general mood stream that rises after by air distribution plate from the gasification combustion chamber bottom makes biomass fuel in the indoor boiling of gasification, and combustion; Because the indoor air capacity deficiency of gasification, and combustion, biomass fuel carries out imperfect combustion, finishes the direct burning of the pyrolytic gasification and the fixed carbon of living beings volatile matter, produces a large amount of CO, CH
4Deng the high temperature fuel gas, along with separating out of volatile matter in the fuel, fuel particle density reduces gradually, the fuel ash of last after-flame is along with the high-temperature combustible gas body is discharged from the exhaust passage of gas burner together, charcoal in high-temperature combustible gas body and the ash content mixes the violent rapidly burning in back with secondary wind in the gas burner exit, the high-temperature combustible gas body carries out completing combustion, and the surplus carbon in the ash content carries out second-time burning.
The biomass ebullition, gasification burner is applicable to civil boiler, small hydropower station boiler, kiln or other firing equipment, also can directly apply to the transformation of existing fire coal, fuel oil, gas fired-boiler, the high-temperature flue gas that also can utilize biomass combustion to produce is used for industries such as drying.Expense is lower when being used for various boiler improvement, and operating cost reduces 50%-70% than coal-burning boiler heating cost reduction 30%-40% than oil burning boiler heating cost.
Claims (10)
1. biomass ebullition, gasification combustion method is characterized in that: it is indoor that biomass fuel is blown into gasification, and combustion from the charging aperture of gasification combustion chamber, under the effect of a general mood stream that rises in bottom, autopneumatolysis combustion chamber, and the biomass fuel boiling; After lighting, biomass fuel carries out imperfect combustion and generates the high-temperature combustible gas body under fluidized state, and the high-temperature combustible gas body is discharged directly burning by gas burner.
2. biomass ebullition, gasification combustion method according to claim 1 is characterized in that: the high-temperature combustible gas body burns earlier with after secondary wind mixes in the gas burner exit again.
3. biomass ebullition, gasification burner, it is characterized in that: comprise feeder, fan structure and gasification combustion chamber, be provided with in the middle and upper part of gasification combustion chamber's sidewall and be used for the gas burner that high-temperature fuel gas is discharged burning, the discharging opening of feeder is arranged at gasification combustion chamber's sidewall and is lower than on the position of gas burner and with gasification combustion chamber and communicates; The gasification combustion chamber bottom is provided with air-distribution device, and the fan structure provides general mood stream by air-distribution device one time to gasification combustion chamber, and the fan structure is communicated with the discharging opening of feeder by the feed airduct.
4. biomass ebullition, gasification burner according to claim 3 is characterized in that: the fan structure is communicated with the exhaust passage of gas burner by secondary air channel.
5. biomass ebullition, gasification burner according to claim 4, it is characterized in that: the exit in the gas burner exhaust passage is provided with annular passage, the along the circumferential direction spaced apart tangent air inlet that is provided with on the internal ring wall of annular passage, the air outlet of secondary air channel is positioned on the annular passage.
6. biomass ebullition, gasification burner according to claim 5 is characterized in that: described tangent air inlet is two rows, and the rotation direction of two row's tangent air inlets is opposite.
7. according to claim 4 or 5 or 6 described biomass ebullition, gasification burners, it is characterized in that: described air-distribution device comprises the even case of pressing, and the even case of pressing is by being communicated with gasification combustion chamber as the air port on the air distribution plate on case top.
8. biomass ebullition, gasification burner according to claim 7, it is characterized in that: the fan structure comprises blower fan and the bellows that are communicated with blower fan, bellows are communicated with the even case of pressing by an airduct, and the air inlet of feed airduct and secondary air channel all is communicated with bellows.
9. according to the described biomass ebullition, gasification burner of arbitrary claim among the claim 3-6, it is characterized in that: described feeder comprises drive unit and the feed screw feeder that is driven by drive unit, the charging aperture of feed screw feeder is provided with loading hopper, and the discharging opening of feed screw feeder is the discharging opening of feeder.
10. biomass ebullition, gasification burner according to claim 9 is characterized in that: described drive unit comprises motor, and motor is in transmission connection by shaft coupling and feed screw feeder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007103000268A CN101196296A (en) | 2007-12-21 | 2007-12-21 | Method and apparatus for biomass ebullition, gasification and combustion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007103000268A CN101196296A (en) | 2007-12-21 | 2007-12-21 | Method and apparatus for biomass ebullition, gasification and combustion |
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| CN101196296A true CN101196296A (en) | 2008-06-11 |
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| CNA2007103000268A Pending CN101196296A (en) | 2007-12-21 | 2007-12-21 | Method and apparatus for biomass ebullition, gasification and combustion |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660750B (en) * | 2009-09-01 | 2011-03-16 | 刘善华 | Biomass briquette gasification direct combustion combustor |
| CN101995837A (en) * | 2010-11-01 | 2011-03-30 | 广州迪森热能技术股份有限公司 | Automatic biomass gas feeding and diffusing control method and biomass gasification reaction system |
| CN101995836A (en) * | 2010-11-01 | 2011-03-30 | 广州迪森热能技术股份有限公司 | Automatic biomass gas feeding and diffusing control system and biomass gasification reaction system |
| CN102345862A (en) * | 2011-08-26 | 2012-02-08 | 山东省科学院能源研究所 | Biomass particle combustion apparatus and combustion method for the same |
| CN103615718A (en) * | 2013-12-13 | 2014-03-05 | 杭州全合科技有限公司 | Two-stage pulverized coal combustion method |
| CN104197317A (en) * | 2014-09-15 | 2014-12-10 | 关要领 | Biomass burner |
| CN104329661A (en) * | 2014-09-25 | 2015-02-04 | 郑州鼎力新能源技术有限公司 | Wood chip combustion furnace suitable for dryer |
| CN104654286A (en) * | 2014-12-20 | 2015-05-27 | 灵璧县长城锅炉制造厂 | Double-furnace type biomass boiler |
| CN105465770A (en) * | 2016-01-18 | 2016-04-06 | 南通澳润建材科技有限公司 | Biomass burning furnace |
| CN105571299A (en) * | 2016-01-28 | 2016-05-11 | 福建省玛塔农业发展有限公司 | Roasting device and process for producing oyster shell powder |
| CN105861060A (en) * | 2016-04-12 | 2016-08-17 | 河北天善生物技术有限公司 | Boiler system using biomass fuel gas |
| CN106524232A (en) * | 2017-01-04 | 2017-03-22 | 张家界三木能源开发有限公司 | Biomass multifunctional large pot kitchen stove |
| CN106568080A (en) * | 2015-10-09 | 2017-04-19 | 辽宁精化科技有限公司 | Tangential feeding biomass combustor |
| CN106885235A (en) * | 2017-01-24 | 2017-06-23 | 山东理工大学 | Biomass combustion furnace |
| CN107747741A (en) * | 2017-09-19 | 2018-03-02 | 吉林省福泰厨具有限公司 | A kind of kitchen range and dining table |
| CN108036304A (en) * | 2018-01-15 | 2018-05-15 | 山西禾木新能科技有限公司 | A kind of fire coal coupled biological matter burning air-cone |
| CN110553252A (en) * | 2019-03-21 | 2019-12-10 | 华中农业大学 | High ash biomass pellet fuel combustion furnace and method |
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2007
- 2007-12-21 CN CNA2007103000268A patent/CN101196296A/en active Pending
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660750B (en) * | 2009-09-01 | 2011-03-16 | 刘善华 | Biomass briquette gasification direct combustion combustor |
| CN101995837B (en) * | 2010-11-01 | 2012-07-18 | 广州迪森热能技术股份有限公司 | Automatic biomass gas feeding and diffusing control method and biomass gasification reaction system |
| CN101995837A (en) * | 2010-11-01 | 2011-03-30 | 广州迪森热能技术股份有限公司 | Automatic biomass gas feeding and diffusing control method and biomass gasification reaction system |
| CN101995836A (en) * | 2010-11-01 | 2011-03-30 | 广州迪森热能技术股份有限公司 | Automatic biomass gas feeding and diffusing control system and biomass gasification reaction system |
| CN101995836B (en) * | 2010-11-01 | 2012-07-18 | 广州迪森热能技术股份有限公司 | Automatic biomass gas feeding and diffusing control system and biomass gasification reaction system |
| CN102345862B (en) * | 2011-08-26 | 2013-11-27 | 山东省科学院能源研究所 | Biomass particle combustion apparatus and combustion method for same |
| CN102345862A (en) * | 2011-08-26 | 2012-02-08 | 山东省科学院能源研究所 | Biomass particle combustion apparatus and combustion method for the same |
| CN103615718A (en) * | 2013-12-13 | 2014-03-05 | 杭州全合科技有限公司 | Two-stage pulverized coal combustion method |
| CN104197317A (en) * | 2014-09-15 | 2014-12-10 | 关要领 | Biomass burner |
| CN104329661A (en) * | 2014-09-25 | 2015-02-04 | 郑州鼎力新能源技术有限公司 | Wood chip combustion furnace suitable for dryer |
| CN104654286A (en) * | 2014-12-20 | 2015-05-27 | 灵璧县长城锅炉制造厂 | Double-furnace type biomass boiler |
| CN104654286B (en) * | 2014-12-20 | 2017-06-27 | 灵璧县长城锅炉制造厂 | Twin furnace formula biomass boiler |
| CN106568080A (en) * | 2015-10-09 | 2017-04-19 | 辽宁精化科技有限公司 | Tangential feeding biomass combustor |
| CN105465770A (en) * | 2016-01-18 | 2016-04-06 | 南通澳润建材科技有限公司 | Biomass burning furnace |
| CN105571299A (en) * | 2016-01-28 | 2016-05-11 | 福建省玛塔农业发展有限公司 | Roasting device and process for producing oyster shell powder |
| CN105861060A (en) * | 2016-04-12 | 2016-08-17 | 河北天善生物技术有限公司 | Boiler system using biomass fuel gas |
| CN105861060B (en) * | 2016-04-12 | 2019-03-22 | 河北天善生物技术有限公司 | Utilize the boiler system of biological fuel gas |
| CN106524232A (en) * | 2017-01-04 | 2017-03-22 | 张家界三木能源开发有限公司 | Biomass multifunctional large pot kitchen stove |
| CN106524232B (en) * | 2017-01-04 | 2018-11-20 | 张家界三木能源开发有限公司 | A kind of Multifunctional biomass cauldron kitchen range |
| CN106885235A (en) * | 2017-01-24 | 2017-06-23 | 山东理工大学 | Biomass combustion furnace |
| CN106885235B (en) * | 2017-01-24 | 2019-04-16 | 山东理工大学 | Biomass combustion furnace |
| CN107747741A (en) * | 2017-09-19 | 2018-03-02 | 吉林省福泰厨具有限公司 | A kind of kitchen range and dining table |
| CN107747741B (en) * | 2017-09-19 | 2024-03-08 | 吉林省福泰厨具有限公司 | Kitchen range and dining table |
| CN108036304A (en) * | 2018-01-15 | 2018-05-15 | 山西禾木新能科技有限公司 | A kind of fire coal coupled biological matter burning air-cone |
| CN110553252A (en) * | 2019-03-21 | 2019-12-10 | 华中农业大学 | High ash biomass pellet fuel combustion furnace and method |
| CN110553252B (en) * | 2019-03-21 | 2024-03-08 | 华中农业大学 | High ash content biomass pellet fuel combustion furnace and method |
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Open date: 20080611 |