CN110623294A - Integrated built-in heat supply device of biomass energy bulk curing barn - Google Patents

Integrated built-in heat supply device of biomass energy bulk curing barn Download PDF

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Publication number
CN110623294A
CN110623294A CN201910925710.8A CN201910925710A CN110623294A CN 110623294 A CN110623294 A CN 110623294A CN 201910925710 A CN201910925710 A CN 201910925710A CN 110623294 A CN110623294 A CN 110623294A
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CN
China
Prior art keywords
furnace
heat
flue gas
hearth
temperature flue
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Granted
Application number
CN201910925710.8A
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Chinese (zh)
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CN110623294B (en
Inventor
赵高坤
张宏
孙建峰
徐鸿飞
王鹏
杨健
杨闽
蔡小尧
蔡建峰
张荣辉
杨世兵
邹聪明
陈颐
胡彬彬
吴会平
杨世波
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Yunnan Academy of Tobacco Agricultural Sciences
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Yunnan Academy of Tobacco Agricultural Sciences
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Priority to CN201910925710.8A priority Critical patent/CN110623294B/en
Publication of CN110623294A publication Critical patent/CN110623294A/en
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Publication of CN110623294B publication Critical patent/CN110623294B/en
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    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24BMANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00Preparing tobacco in the factory
    • A24B3/10Roasting or cooling tobacco
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

Abstract

The invention discloses an integrated built-in heat supply device of a biomass energy bulk curing barn, which comprises a combustion furnace and a heat exchanger, wherein a furnace door is arranged on the combustion furnace, a feeding mechanism is arranged on the furnace door of the combustion furnace and extends into a hearth of the combustion furnace, an igniter and a fire viewer communicated with the outside are arranged in the hearth, a protective cover is arranged at the connecting part of the furnace door and the feeding mechanism, the heat exchanger is arranged at the top of the combustion furnace through a support, and the heat exchanger is communicated with the hearth of the combustion furnace through a high-temperature flue gas guide pipe. The invention has compact structure, simple layout, energy saving and consumption reduction, replaces coal energy with fuels such as coal, firewood, biomass gas and the like, reduces the consumption of non-renewable energy, has less fuel consumption and high temperature rise and heat exchange speed; the waste heat recovery and utilization can be carried out on the high-temperature flue gas exhausted by the combustion furnace, the utilization efficiency of heat energy is further improved, the heating capacity and the heating effect are improved, and the heat energy loss is reduced, so that the aims of improving the quality and reducing the loss of tobacco leaf baking, reducing the cost and improving the efficiency are fulfilled.

Description

Integrated built-in heat supply device of biomass energy bulk curing barn
Technical Field
The invention belongs to the technical field of tobacco baking equipment, and particularly relates to an integrated built-in heat supply device of a biomass energy bulk curing barn.
Background
With the rapid development of the tobacco industry, the standard of the tobacco leaf demand is higher and higher, the production of high-quality tobacco leaves is the main direction of the future development, and the science and technology cigarette has become the main melody of the development of the traditional agriculture to the modern tobacco leaves. The tobacco curing barn is matched by an advanced scientific technology, the internal quality and the external quality of tobacco leaves are continuously improved, the labor intensity and the production cost are reduced, the economic benefit is increased, and the tobacco curing barn becomes a necessary means for tobacco to mainly compete for the market at the present stage. In four links of tobacco seedling raising, planting, picking and baking, the baking is a link with the least controllable quality, the highest risk and the largest loss of the flue-cured tobacco. The tobacco leaf baking is an essential key link in the production of flue-cured tobacco, is also the weakest link in the production of the tobacco leaves at present, solves the problem of baking and modulating the tobacco leaves, namely maintains the enthusiasm of farmers for growing the tobacco and solves the problem of stable tobacco production.
Aiming at the problems of coal heating, heating modes such as biomass granular fuel, electromagnetic heating, resistance heating, infrared heating and the like appear, and a series of new problems are brought although some problems of coal heating can be avoided. For example, the existing biomass particle combustion furnace has low heat energy utilization efficiency; although the electromagnetic heating is fast in heating, the energy consumption is high, the heat efficiency is low, and the energy is not saved; and resistance heating and infrared heating electricity adds roast room and gets rid of (or remain) the original firing equipment in roast room, at the original room of heating of roast room and the indoor installation multiunit resistance wire of flue-cured tobacco or far infrared carbon fiber electrothermal tube, adjust the temperature in the roast room through the different combinations of control multiunit resistance wire or far infrared carbon fiber electrothermal tube, although control is comparatively simple, no matter resistance wire or far infrared carbon fiber electrothermal tube all have the inefficiency of generating heat, output can only segment control, lead to the not enough meticulous and steady problem of temperature adjustment.
Therefore, the key to solve the problem is to develop a novel combustion furnace which can effectively improve the utilization efficiency of heat energy and has low energy consumption.
Disclosure of Invention
The invention provides an integrated built-in heat supply device of a biomass energy bulk curing barn.
The invention is realized by the following technical scheme: comprises a combustion furnace and a heat exchanger, wherein the combustion furnace is provided with a furnace door, the feeding mechanism is arranged on the furnace door of the combustion furnace, and extends into the hearth of the combustion furnace, an igniter and a fire viewer communicated with the outside are arranged in the hearth, a protective cover is arranged at the connecting part of the furnace door and the feeding mechanism, the heat exchanger is arranged at the top of the combustion furnace through a bracket, the heat exchanger is communicated with a hearth of the combustion furnace through a high-temperature flue gas guide pipe, the heat exchanger comprises a heat exchange fire box and a heat conducting mechanism, the heat exchange fire box and the heat conducting mechanism are arranged on a bracket, the heat-exchange fire boxes are symmetrically arranged at two ends of the heat-conducting mechanism and are communicated with each other, a smoke exhaust pipe communicated with the heat-exchange fire box is arranged on the outer side wall of any one heat-exchange fire box, the bottom of the other heat-exchange fire box is communicated with a high-temperature flue gas guide pipe, and heat exchange fins are arranged on the outer walls of the combustion furnace and the high-temperature flue gas guide pipe.
The invention has the beneficial effects that: the invention has compact structure, simple layout and convenient operation and use, replaces coal energy with fuels such as coal, firewood, biomass gas and the like, reduces the consumption of non-renewable energy, has less fuel consumption, is not limited by power supply and climate, has high temperature rise and heat exchange speed, can quickly heat the air around the furnace body, has high heat utilization rate and effectively reduces heat loss; the waste heat recovery and utilization can be carried out on the high-temperature flue gas discharged by the combustion furnace, the utilization efficiency of heat energy is further improved, the heating capacity and effect are improved, the heat energy loss is reduced, and the defect that the electromagnetic, resistance, infrared heating and other electric heating modes are limited by electric energy is completely avoided; compared with the traditional coal-fired furnace, the temperature is easy to automatically control and is environment-friendly, and compared with the traditional modes of electromagnetic heating, resistance heating, infrared heating and the like, the efficiency is higher, so that the high reliability of the curing barn can be ensured, and the purposes of improving the quality and reducing the loss of tobacco leaves during curing, reducing cost and improving efficiency are achieved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a left side view of the present invention;
FIG. 3 is a schematic diagram of the right view structure of the present invention;
FIG. 4 is a schematic top view of the present invention;
FIG. 5 is a schematic structural view of a high temperature flue gas duct according to the present invention;
FIG. 6 is a reference diagram illustrating the operation of the high temperature flue gas duct according to the present invention;
the reference numbers in the figure are 1 ~ furnace wall, 2 ~ furnace roof, 3 ~ igniter, 4 ~ ash bin, 5 ~ explosion-proof hole, 6 ~ heat exchange sheet, 7 ~ long heat sheet, 8 ~ short heat sheet, 9 ~ heat exchange fire box, 10 ~ finned tube, 11 ~ smoke exhaust tube, 12 ~ settling box, 13 ~ heat conduction tube, 14 ~ fire baffle, 15 ~ ash cleaning door, 16 ~ bracket, 17 ~ screw feeder, 18 ~ storage box, 19 ~ discharge port, 20 ~ material level observation window, 21 ~ box cover, 22 ~ air supplementing tube and 23 ~ fire observer.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description is made with reference to the accompanying drawings.
The integrated built-in heat supply device of the biomass energy bulk curing barn shown in fig. 1 ~ 6 comprises a combustion furnace and a heat exchanger, wherein a furnace door is arranged on the combustion furnace, a feeding mechanism is arranged on the furnace door of the combustion furnace and extends into a hearth of the combustion furnace, an igniter 3 and a fire viewer 23 communicated with the outside are arranged in the hearth, a protective cover is arranged at a connecting part of the furnace door and the feeding mechanism, the heat exchanger is arranged at the top of the combustion furnace through a support 16 and is communicated with the hearth of the combustion furnace through a high-temperature flue gas guide pipe, the heat exchanger comprises a heat exchange fire box 9 and a heat conducting mechanism, the heat exchange fire box 9 and the heat conducting mechanism are arranged on the support 16, heat exchange fire boxes 9 are symmetrically arranged at two ends of the heat conducting mechanism and are communicated with each other, a smoke exhaust pipe 11 communicated with the heat exchange fire box 9 is arranged on the outer side wall of any one of the heat exchange fire boxes 9, the bottom of the.
The combustion furnace comprises a furnace wall 1, a furnace top 2 and a feeding mechanism, wherein the furnace wall 1 is internally provided with a U-shaped hearth, the hearth is connected with a furnace door, an ash bin 4 communicated with the outer side of the furnace wall 1 is arranged below the hearth, the opening direction of the ash bin 4 is consistent with that of the hearth, the ash bin 4 is provided with an ash bin 4 door matched with the ash bin 4 door, any side wall of the hearth is provided with a high-temperature flue gas guide port, the outer side of the high-temperature flue gas guide port is provided with a high-temperature flue gas guide pipe, the furnace is internally provided with an air supplementing pipe 22 communicated with the outside, and the bottom of the hearth is provided with an ash and coke; the furnace top 2 is sealed and covered on the top of the furnace wall 1.
And heat exchange fins 6 are respectively arranged on the outer walls of the furnace wall 1 and the furnace top 2 of the combustion furnace.
The heat exchange fins 6 of the furnace part of the furnace top 2 are arranged in a structure that the top center is uniformly radiated outwards, the heat exchange fins 6 comprise long heat fins 7 and short heat fins 8, the long heat fins 7 and the short heat fins 8 are arranged alternately, and the short heat fins 8 are arranged at the lower part of the furnace top 2.
The thickness of the heat exchange plate 6 is not less than 0.3cm, the height is not less than 4cm, and the heat exchange plate 6 is fixedly connected with the furnace wall 1 and the furnace top 2.
The heat conducting mechanism is formed by arranging a plurality of layers of horizontally arranged finned tubes 10, each layer of finned tubes 10 is provided with at least two finned tubes 10, and two ends of each finned tube 10 are communicated with a heat exchange fire box 9; and turbulence fins are arranged on the inner side walls of the heat exchange fire boxes 9, which are not connected with the finned tubes 10, and the turbulence fins on the two adjacent side walls are arranged in a staggered manner.
The finned tube 10 is a tube with radiating fins uniformly arranged on the tube wall of the tube in the axial direction.
The high-temperature flue gas guide pipe comprises a settling tank 12 and a heat conducting pipe 13, wherein one side of the settling tank 12 is provided with a high-temperature flue gas guide opening on the side wall of the hearth, the high-temperature flue gas guide opening is communicated, the heat conducting pipe 13 is arranged at the top of the settling tank 12, the settling tank 12 and the heat conducting pipe 13 are combined to form an integrally formed L-shaped structure, an ash removal door 15 is arranged on the front surface or the lower surface of the settling tank 12, and heat exchange sheets 6 are arranged on the outer walls of the settling tank 12 and the heat conducting pipe 13.
The settling tank 12 is connected and is provided with the fire damper 14 on one side of high temperature flue gas guide port, fire damper 14 shelters from flame, makes flame heat oven 1, furnace roof 2 in the furnace, prevents that flame from getting into settling tank 12 in a large number, fire damper 14 sets up on the bottom plate of settling tank 12, and fire damper 14 highly is not less than the half of high temperature flue gas guide port height, is not more than the four fifths of high temperature flue gas guide port height, makes and forms heat conduction channel between fire damper 14 and the top of settling tank 12.
The ash bin 4 is provided with explosion-proof holes 5, and the number of the explosion-proof holes 5 is at least two.
The feeding mechanism comprises a storage box 18 and a spiral feeder 17, wherein one end of the spiral feeder 17 is provided with the storage box 18, the other end of the spiral feeder 17 penetrates through a furnace door to extend into a hearth of the combustion furnace, the storage box 18 is arranged above a material receiving port of the spiral feeder 17, a material removing port 19 is formed in the bottom of the storage box 18, a material removing baffle is arranged on the material removing port 19, the material removing baffle opens and closes the material removing port 19, a material level observation window 20 of a transparent structure is longitudinally formed in the wall of the storage box 18, and a box cover 21 is arranged at the top of the storage box 18.
The fire viewer 23 is a tubular structure, the fire viewer 23 is disposed at the middle lower part of the furnace, one end of the fire viewer 23 extends into the furnace, the other end of the fire viewer outwardly penetrates through the furnace wall 1, and the fire viewer is provided with observation lenses, the cross-sectional area of the fire viewer 23 is not less than 4 cm.
The igniter 3 is an electronic automatic igniter 3 with the functions of dust prevention and electric shock prevention, the power of the igniter 3 is more than 0.60 kW, the ignition time is less than 5 min, and the use frequency is more than 2000 times.
One end of the air supplementing pipe 22 is connected with a fan outside the furnace wall 1, and the other end of the air supplementing pipe extends into the furnace chamber.
And a sealing ring is arranged between the furnace wall 1 and the furnace top 2.
The heat exchanger, the high-temperature flue gas guide pipe, the furnace wall 1 of the combustion furnace and the furnace top 2 are made of high-temperature-resistant metal materials.
The specific working mode and process of the invention are as follows: when in use, the device is erected in a heat supply chamber of a house to be dried, a combustion furnace, a heat exchanger and a high-temperature flue gas guide pipe are all arranged in the heat supply chamber, a furnace door and an ash bin 4 of the combustion furnace are arranged outside the heat supply chamber, and the furnace wall 1, the heat exchanger and the high-temperature flue gas guide pipe are fully contacted with gas in the heat supply chamber; when the biomass fuel burner works, biomass fuel is put into the storage box 18 in advance, is automatically conveyed into a hearth of the burner through the spiral feeder 17 arranged at the bottom of the storage box 18, and is automatically ignited and combusted by the igniter 3; when heating is carried out, the biomass fuel is automatically and continuously added into the hearth for combustion through the spiral feeder 17, part of heat generated by the combustion of the biomass fuel is transferred to the furnace wall 1 and the furnace top 2, the furnace wall 1 and the furnace top 2 transfer the heat to gas in the heat supply chamber through the heat exchange fins 6 outside the furnace wall and the furnace top, so that the gas is heated, hot gas in the heat supply chamber is conveyed to heat-requiring equipment through a pipeline, the other part of heat exchanges heat with high-temperature flue gas through the high-temperature flue gas guide pipe and the heat exchanger in sequence, and the flue gas is discharged from the smoke discharge pipe 11 on the heat exchanger.
After heat enters the high-temperature flue gas guide pipe, part of the heat is contacted with the settling box 12 and the heat conduction pipe 13 to exchange heat, the heat exchange fins 6 on the surfaces of the settling box 12 and the heat conduction pipe 13, namely the long heat fins 7 and the short heat fins 8 absorb the heat and then heat the gas in the heat supply chamber, the other part of the heat continues to rise along with the flue gas and enters the heat exchanger, at the moment, the flue gas is firstly gathered in the heat exchange fire box 9 connected with the heat conduction pipe 13 and then is conveyed to the other heat exchange fire box 9 through a pipe array formed by combining a plurality of finned pipes 10, the heat absorbed by the heat exchange fire box 9 and the finned pipes 10 is transferred to heat the gas in the heat supply chamber, and after the flue gas exchanges heat in the finned pipes 10 and the two heat exchange fire boxes 9, the high-temperature flue gas.
During operation, the use condition of the substance fuel in the storage tank 18 can be observed through the level observation window 20; the fire intensity and the combustion condition of the biomass fuel in the hearth of the flame observing device 23; the air supply pipe 22 supplies oxygen to the hearth, so that the biomass fuel is combusted more fully, the combustion efficiency is improved, the operation speed of a fan connected with the air supply pipe 22 can be adjusted, and the requirements of different air supply amounts are met; the dust carried by the high-temperature flue gas settles and collects at the bottom of the settling tank 12 when the high-temperature flue gas rises in the heat conduction pipe 13, and finally is taken out from the dust removing door 15.

Claims (10)

1. The utility model provides a built-in heating device of biomass energy bulk curer integral type, is provided with furnace gate, its characterized in that including firing burning furnace, heat exchanger on firing burning furnace: the charging mechanism is arranged on a furnace door of the combustion furnace and extends into a hearth of the combustion furnace, an igniter (3) and a fire viewer (23) communicated with the outside are arranged in the hearth, a protective cover is arranged at the connecting part of the furnace door and the feeding mechanism, the heat exchanger is arranged at the top of the combustion furnace through a bracket (16), the heat exchanger is communicated with a hearth of the combustion furnace through a high-temperature flue gas guide pipe, the heat exchanger comprises a heat exchange fire box (9) and a heat conducting mechanism, the heat exchange fire box (9) and the heat conducting mechanism are arranged on a bracket (16), heat exchange fire boxes (9) are symmetrically arranged at two ends of the heat conducting mechanism and are communicated with each other, the outer side wall of any heat exchange fire box (9) is provided with a smoke exhaust pipe (11) communicated with the heat exchange fire box, the bottom of the other heat exchange fire box (9) is communicated with a high-temperature flue gas guide pipe, and the outer walls of the combustion furnace and the high-temperature flue gas guide pipe are provided with heat exchange fins (6).
2. The biomass energy bulk curing barn integrated internal heat supply device according to claim 1, wherein: the combustion furnace comprises a furnace wall (1), a furnace top (2) and a feeding mechanism, wherein a hearth with a U-shaped structure is arranged inside the furnace wall (1), the hearth is connected with a furnace door, an ash bin (4) communicated with the outer side of the furnace wall (1) is arranged below the hearth, the opening direction of the ash bin (4) is consistent with that of the hearth, an ash bin (4) door matched with the ash bin (4) is arranged on the ash bin (4), a high-temperature flue gas guide port is formed in any side wall of the hearth, a high-temperature flue gas guide pipe is arranged outside the high-temperature flue gas guide port, an air supplementing pipe (22) communicated with the outside is arranged inside the hearth, and an ash and coke removing device is arranged at the bottom of the; the furnace top (2) is sealed and covered on the top of the furnace wall (1).
3. The biomass energy bulk curing barn integrated internal heat supply device according to claim 1, wherein: and heat exchange fins (6) are respectively arranged on the outer walls of the furnace wall (1) and the furnace top (2) of the combustion furnace.
4. The biomass energy bulk curing barn integrated internal heat supply device according to claim 3, wherein the integrated internal heat supply device comprises: the heat exchange fins (6) of the furnace part of the furnace top (2) are of a structure with a top center radiating outwards uniformly, the heat exchange fins (6) comprise long heat fins (7) and short heat fins (8), the long heat fins (7) and the short heat fins (8) are arranged alternately, and the short heat fins (8) are arranged on the lower part of the furnace top (2).
5. The biomass energy-dense curing barn integrated internal heat supply device according to claim 1, 3 or 4, wherein the biomass energy-dense curing barn integrated internal heat supply device comprises: the thickness of the heat exchange plate (6) is not less than 0.3cm, the height of the heat exchange plate is not less than 4cm, and the heat exchange plate (6) is fixedly connected with the furnace wall (1) and the furnace top (2).
6. The biomass energy bulk curing barn integrated internal heat supply device according to claim 1, wherein: the heat conducting mechanism is formed by arranging a plurality of layers of horizontally arranged finned tubes (10), each layer of finned tube (10) is provided with at least two finned tubes (10), and two ends of each finned tube (10) are communicated with a heat exchange fire box (9); each inner side wall of each heat exchange fire box (9) which is not connected with the finned tubes (10) and (10) is provided with a turbulence fin, and the turbulence fins on the two adjacent side walls are arranged in a staggered manner.
7. The biomass energy bulk curing barn integrated internal heat supply device according to claim 1, wherein: high temperature flue gas pipe including settling tank (12), heat pipe (13), settling tank (12) one side sets up on the high temperature flue gas guide mouth of furnace lateral wall, and communicates high temperature flue gas guide mouth, sets up heat pipe (13) at the top of settling tank (12), makes settling tank (12), heat pipe (13) combination be integrated into one piece's "L" shape structure, is provided with deashing door (15) openly or low face at settling tank (12), be equipped with heat exchanger fin (6) on the outer wall of settling tank (12), heat pipe (13).
8. The biomass energy bulk curing barn integrated internal heat supply device according to claim 7, wherein the integrated internal heat supply device comprises: settling tank (12) connect and be provided with fire damper (14) on one side of high temperature flue gas guide port, fire damper (14) set up on the bottom plate of settling tank (12), and the height of fire damper (14) is not less than the half of high temperature flue gas guide port height, is not more than the fourth fifth of high temperature flue gas guide port height, makes and forms heat conduction passageway between the top of fire damper (14) and settling tank (12).
9. The biomass energy bulk curing barn integrated internal heat supply device according to claim 1, wherein: the ash bin (4) door is provided with explosion-proof holes (5), and the number of the explosion-proof holes (5) is at least two.
10. The biomass energy bulk curing barn integrated internal heat supply device according to claim 1, wherein: the feeding mechanism comprises a storage box (18) and a spiral feeder (17), wherein the storage box (18) is arranged at one end of the spiral feeder (17), the other end of the spiral feeder penetrates through a furnace door to extend into a hearth of the combustion furnace, the storage box (18) is arranged above a material receiving port of the spiral feeder (17), a material removing port (19) is formed in the bottom of the storage box (18), a material removing baffle is arranged on the material removing port (19), the material removing baffle opens and closes the material removing port (19), a material level observation window (20) of a transparent structure is longitudinally formed in the wall of the storage box (18), and a box cover (21) is arranged at the top of the storage box (18).
CN201910925710.8A 2019-09-27 2019-09-27 Integrated built-in heat supply device of biomass energy bulk curing barn Active CN110623294B (en)

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CN204273210U (en) * 2014-11-03 2015-04-22 云南佳叶工贸有限公司 Biomass fuel counter-burning type oven
CN204351051U (en) * 2014-12-04 2015-05-27 张中伟 A kind of firing equipment being applicable to flow translation type drying room
CN204409560U (en) * 2015-01-16 2015-06-24 山东潍坊烟草有限公司 A kind of energy-conservation intensive flue-cured tobacco firing equipment
CN204742592U (en) * 2015-07-25 2015-11-11 山东源泉机械有限公司 Modified advances coal type bulk curer firing equipment automatically
CN106931637A (en) * 2015-12-31 2017-07-07 陈伟峰 A kind of high-efficient hot air furnace for baking equipment for preparatory treatment of tobacco
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CN206831828U (en) * 2017-06-20 2018-01-02 三明市鸿达智能农业设备有限公司 A kind of biomass special hot air stove
CN110269270A (en) * 2019-07-16 2019-09-24 河南农业大学 A kind of one docking furnace of flue-cured tobacco biological substance shaped granule fuel

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