CN208136186U - The downdraft combustion furnace of bamboo timber stoving and bamboo and wood charcoal production zero-emission cigarette is realized simultaneously - Google Patents
The downdraft combustion furnace of bamboo timber stoving and bamboo and wood charcoal production zero-emission cigarette is realized simultaneously Download PDFInfo
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- CN208136186U CN208136186U CN201820328695.XU CN201820328695U CN208136186U CN 208136186 U CN208136186 U CN 208136186U CN 201820328695 U CN201820328695 U CN 201820328695U CN 208136186 U CN208136186 U CN 208136186U
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- combustion furnace
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 65
- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims abstract description 48
- 235000017491 Bambusa tulda Nutrition 0.000 title claims abstract description 46
- 241001330002 Bambuseae Species 0.000 title claims abstract description 46
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims abstract description 46
- 239000011425 bamboo Substances 0.000 title claims abstract description 46
- 239000002023 wood Substances 0.000 title claims abstract description 31
- 239000003610 charcoal Substances 0.000 title claims abstract description 25
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000001035 drying Methods 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 15
- 239000000446 fuel Substances 0.000 claims abstract description 9
- 238000009423 ventilation Methods 0.000 claims description 16
- 238000010000 carbonizing Methods 0.000 claims description 10
- 238000013022 venting Methods 0.000 claims description 6
- 239000011449 brick Substances 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000000779 smoke Substances 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims description 2
- 239000011819 refractory material Substances 0.000 claims description 2
- 239000002956 ash Substances 0.000 claims 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 claims 1
- 239000003595 mist Substances 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 244000271437 Bambusa arundinacea Species 0.000 abstract description 2
- 239000003245 coal Substances 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 229910052717 sulfur Inorganic materials 0.000 abstract description 2
- 239000011593 sulfur Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 16
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 238000002309 gasification Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000003763 carbonization Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 235000021419 vinegar Nutrition 0.000 description 2
- 239000000052 vinegar Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 244000302661 Phyllostachys pubescens Species 0.000 description 1
- 235000003570 Phyllostachys pubescens Nutrition 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model discloses one kind while realizing the downdraft combustion furnace of bamboo timber stoving and bamboo and wood charcoal production zero-emission cigarette, the combustible gas that downdraft combustion furnace generates, and carries out second-time burning in second of combustion chamber before drying chamber heat-dissipating pipe before blower.The high-temperature combustible gas that downdraft combustion furnace described in the utility model generates is without cooling i.e. burned, so the existing down-draft type gasifying furnace of its thermal efficiency ratio is high.The cooling effect of the existing thermal-flame of drying chamber heat-dissipating pipe also has and radiates to drying chamber for heat effect.The furnace realizes the recycling of bamboo timber stoving zero-emission cigarette, bamboo and wood charcoal production zero-emission cigarette and charcoal kiln smog thermal energy simultaneously, is that the bamboo and wood material that three zones roll into one first dries the latest equipment carbonized afterwards.The fuel of the furnace is common bamboo Wood leftover or low-sulfur coal, and price is relatively cheap, and drying cost is low.
Description
Technical field
The utility model relates to combustion furnace technical field, it is specifically a kind of and meanwhile realize bamboo and wood material (non-bamboo scraps, sawdust) dry
The downdraft combustion furnace of dry and bamboo and wood charcoal production zero-emission cigarette.
Background technique
1, the combustible gas that existing down-draft type gasifying furnace generates all is the combustion heat supplying after air-introduced machine.Because the furnace generates
Combustible gas pass through red-hot layer of charcoal downwards, temperature is higher than 800 DEG C, and the temperature that resisting blower is resistant to is lower than 250 DEG C,
So this high-temperature fuel gas must be cooled to lower than 250 DEG C, air-introduced machine will not just be burnt out.Combustible gas is cooled to from higher than 800 DEG C
Lower than 250 DEG C, has lost heat, reduces the thermal efficiency.This is a big disadvantage of existing down-draft type gasifying furnace.
2, the heating equipment of existing bamboo and wood material drying chamber, except biomass particle gasification furnace heat supply, vapor heat supply, electric heat supply
Outside liquefied gas heat supply, other heating stoves can all generate smog, pollute environment, and biological particles, vapor, electricity and liquefied gas
As heat source, the cost for drying bamboo and wood material is very high, i.e., existing bamboo and wood material drying technology or pollution environment or is dried into
This is very high.
3, the disposal status of bamboo carbonization of wood smog is that most producers directly to airborne release smog, pollute environment；It is a small number of
Producer uses hollow moso bamboo or stainless steel tube condensation method, by smog condensation liquefaction.The shortcomings that condensation method：First is that undried bamboo and wood
Material charing will generate a large amount of bamboo and wood vinegar liquid, and due to its complex chemical composition and each component content is very dilute, refine difficult, great Liang Ji
Press to secondary pollution.Second is that many is difficult to the liquefied toxic component that is condensed in smog, as butadiene, carbon monoxide, benzene,
Toluene etc. is discharged into air, pollutes air.Third is that many in smog be difficult to the fuel gas condensed, such as carbon monoxide, hydrogen, first
Alkane, butadiene, methanol, benzene, toluene etc. are discharged into atmosphere and had not only polluted environment but also wasted a large amount of thermal energy.
Utility model content
The purpose of the utility model is to provide a kind of lower suctions that can realize bamboo timber stoving bamboo and wood charcoal production zero-emission cigarette simultaneously
Formula combustion furnace solves the problems, such as the low disadvantage of existing downdraft gasification furnace thermal efficiency and pollution environment.
To achieve the above object, the utility model provides the following technical solutions：
The utility model discloses downdraft combustion furnace that is a kind of while realizing bamboo timber stoving and bamboo and wood charcoal production zero-emission cigarette,
The combustible gas that downdraft combustion furnace generates carries out secondary combustion in second of combustion chamber before drying chamber heat-dissipating pipe before blower
It burns.
Above the grate of downdraft combustion furnace assembly first charing smog enter pipe or below assembly second charing smog into
Enter pipe, the smokestack mouth of carbonizing kiln enters pipe or the second charing by the first charing smog that pipeline is connected to downdraft combustion furnace
Smog enters pipe, and the oral area of second of combustion chamber under the grate of downdraft combustion furnace between furnace and drying chamber is connected to drying chamber and dissipates
Heat pipe front end inlet, heat-dissipating pipe back outlet connect air-introduced machine.
Downdraft combustion furnace further includes the bell, furnace bottom, furnace wall being equipped with, and upper furnace hearth, upper furnace hearth is arranged above grate
Fuel chambers are arranged in top, furnace under grate following settings, are the first grey room below lower furnace, are below second of combustion chamber
Dual ash chamber.
Compared with prior art, the utility model has the beneficial effects that：
1, the high-temperature combustible gas that downdraft combustion furnace described in the utility model generates is burned without cooling, so it
The existing down-draft type gasifying furnace of thermal efficiency ratio it is high.The cooling effect of the existing thermal-flame of drying chamber heat-dissipating pipe also has and dissipates to drying chamber
Heat is for heat effect.
2, the smog of the fuel of the furnace combustible gas that burning generates for the first time and the low water content that carbonizing kiln generates, in the furnace
Secondary combustion chamber be sufficiently cleaned burning, the heat heat-dissipating pipe of generation is used for bamboo timber stoving, so furnace reality simultaneously
The recycling for having showed bamboo timber stoving zero-emission cigarette, bamboo and wood charcoal production zero-emission cigarette and charcoal kiln smog thermal energy, is that three zones combine in
The bamboo and wood material of the whole body first dries the latest equipment carbonized afterwards, than existing bamboo timber stoving and the production of bamboo and wood charcoal and its smoke treated
Technology is more energy efficient more clean it is more scientific.
3, the fuel of the furnace is common bamboo Wood leftover or low-sulfur coal, and price is relatively cheap, and drying cost is low.
4, it solves the low disadvantage of existing downdraft gasification furnace thermal efficiency, it is dirty to solve existing bamboo and wood material drying chamber heating stove
Environment or the high disadvantage of drying cost are contaminated, solves following disadvantage existing for existing bamboo carbonization of wood smog condensation method：Bamboo and wood
The secondary pollution of vinegar liquid is difficult to the toxic gas condensed and fuel gas, pollution atmosphere, waste thermal energy to airborne release.
Detailed description of the invention
Fig. 1 is the structure schematic side view that combustion furnace is absorbed under the utility model；
Fig. 2 is the schematic top plan view for absorbing combustion furnace under the utility model and connecting with drying chamber and carbonizing kiln；
Fig. 3 is existing down-draft type gasifying furnace combustible gas second-time burning position view；
Fig. 4 is that combustion furnace combustible gas second-time burning position view is absorbed under the utility model.
Wherein：1 bell, 2 drying layers, 3 charring layers, 4 first ventilation ducts, 5 oxide layers, 6 layer of charcoal, 7 reduction zones, 8 second is logical
Air hose, 9 second of combustion chamber, 10 first grey rooms, 11 furnace bottoms, 12 dual ash chamber, 13 furnace walls, 14 first charing smog enter pipe,
15 grates, 16 second charing smog enter pipe, 17 third venting pipes, 18 fuel chambers, 19 downdraft combustion furnaces, 20 carbonizing kilns
Smokestack mouth, 21 air-introduced machines.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-4 is please referred to, the utility model discloses a kind of while realizing that bamboo timber stoving and bamboo and wood charcoal produce zero-emission cigarette
Downdraft combustion furnace, the combustible gas that downdraft combustion furnace 19 generates, second of combustion before the drying chamber heat-dissipating pipe before blower
It burns 1200 degree of combustible gases after carrying out second-time burning in room 9 and is heated equipment and comes out 200 degree of hot gas and enter back into blower.Downdraft
800 degree of combustible gases that gasification furnace comes out cool to 200 degree through cooling equipment, then pass sequentially through blower, second-time burning and are added
Hot equipment, in blower after-combustion, this is the essential area of downdraft combustion furnace and down-draft type gasifying furnace for the combustion gas of down-draft type gasifying furnace
Not.The grate 15 of downdraft combustion furnace 19 above assemble first charing smog enter pipe 14 or below assembly second charing smog into
Enter pipe 16, the smog of the smokestack mouth 20 from carbonizing kiln is made to be able to enter the combustion furnace, the smokestack mouth 20 of carbonizing kiln passes through pipeline
The the first charing smog for being connected to downdraft combustion furnace 19 enters pipe 14 or the second charing smog enters pipe 16, downdraft combustion
The oral area for burning lower second of the combustion chamber 9 between furnace and drying chamber of grate 15 of furnace 19 is connected to drying chamber heat-dissipating pipe front end inlet,
Heat-dissipating pipe back outlet connects air-introduced machine 21,21 high temperature resistant of air-introduced machine.Second of combustion chamber 9 is passed through Secondary Air, by combustible gas and
Carbonizing kiln smog whole oxidizing fire, the flame of generation spray into the front end inlet of drying chamber heat-dissipating pipe from second of combustion chamber 9.
The downdraft combustion furnace manufactured according to the above technical scheme, can connect with drying chamber and connect with carbonizing kiln, so
Bamboo timber stoving and bamboo and wood charcoal production zero-emission cigarette can be realized simultaneously, and can recycle the thermal energy of charcoal kiln smog.
Downdraft combustion furnace 19 further includes the bell 1, furnace bottom 11, furnace wall 13 being equipped with, and upper furnace is arranged in grate 15 above
Hall, is arranged fuel chambers 18 above upper furnace hearth, furnace under 15 following settings of grate, is the first grey room 10 below lower furnace, and second
The lower section of secondary combustion chamber 9 is dual ash chamber 12.
The upper furnace hearth two sides are respectively cooperating with the first ventilation duct 4 of setting and third venting pipe 17, the first ventilation duct 4 and third
Ventilation duct 17 is divulged information at first time burning；Second of combustion chamber 9 is equipped with the second ventilation duct 8, and the second ventilation duct 8 is to the
Secondary combustion chamber 9 is divulged information.
Drying layer 2, charring layer 3, oxide layer 5, layer of charcoal 6 and reduction zone 7 are followed successively by the fuel chambers 18 from top to bottom.It is dry
Dry 150 degree or so of 2 temperature of layer, 3 temperature 400-500 degree of charring layer, oxide layer 5 be first time burning at 1000 degree of temperature or so,
Layer of charcoal 6 is mainly 800 degree of combustible gas temperature or so that bamboo and wood powdered carbon and reduction zone 7 come out.Oxide layer chemical equation is C+O2
=CO2, reduction zone chemical equation is CO2+ C=2CO.
Specific part requirement is as follows：
The bell 1 is made of sheet metal, and 11 outside of furnace bottom and 13 outside of furnace wall are all sheet metals, and liner is high temperature resistant material
Material, heat-resisting material are common brick, refractory brick or fire clay etc., and with a thickness of 12-20 centimetres, being subject to can keep the temperature heat-resisting material.
The shape of downdraft combustion furnace 19 can be rectangular, round or other shapes.The side length or diameter of furnace are according to baking
Room and carbonizing kiln size determine, generally between 30-100 centimetres, might be less that 30 centimetres or are greater than 100 centimetres.
The height at 10 bottom of the grey room of grate 15 to the first is 50 centimetres or so, can also be higher or lower.
Furnace wall 13 between the lower furnace of grate 15 and second of combustion chamber 9, which should punch, to be connected to, and second of 9 oral area of combustion chamber is answered
Towards drying chamber heat-dissipating pipe front end inlet.The surrounding outer wall of second of combustion chamber 9 is made of refractory material, with a thickness of 12-20 lis
Rice.The size of second of combustion chamber should determine according to furnace size, and general 30-50 meter a length of, width is 20-40 centimetres, height
It is 10-25 centimetres.
The nozzle of first ventilation duct 4, the second ventilation duct 8 and third venting pipe 17 matches valve all to adjust intake, and first
Charing smog enters pipe 14 and the second charing smog of assembly below enters the nozzle of pipe 16 and matches valve all to adjust into smoke.First
Ventilation duct 4, the second ventilation duct 8 and the charing smog of third venting pipe 17, first enter pipe 14 and the second charing smog enters pipe 16
Diameter generally at 4 centimetres -6 centimetres, the quantity of these pipes can fill several, extra pipes more and can close, and the used time again
Open-minded, every kind of pipe can fill 3-6.
Height of first ventilation duct away from grate 15, can also be lower than 20 centimetres or higher than 50 lis generally at 20-50 centimetres
Rice, the second ventilation duct 8 should be mounted in the front of secondary combustion chamber.
Charing smog enters pipe can enter in 15 above and below of grate.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (5)
1. realizing the downdraft combustion furnace of bamboo timber stoving and bamboo and wood charcoal production zero-emission cigarette simultaneously, which is characterized in that downdraft combustion
The combustible gas that furnace (19) generate is burnt, carries out secondary combustion in second of combustion chamber (9) before the drying chamber heat-dissipating pipe before blower
It burns；
The grate (15) of downdraft combustion furnace (19) assembles the first charing smog above and enters pipe (14) or below the second charcoal of assembly
Change smog to enter pipe (16), the smokestack mouth (20) of carbonizing kiln is connected to the first charing cigarette of downdraft combustion furnace (19) by pipeline
Mist enters pipe (14) or the second charing smog enters pipe (16), furnace and drying chamber under the grate (15) of downdraft combustion furnace (19)
Between the oral area of second of combustion chamber (9) be connected to drying chamber heat-dissipating pipe front end inlet, heat-dissipating pipe back outlet connects air-introduced machine
(21)；
Downdraft combustion furnace (19) further includes the bell (1), furnace bottom (11), furnace wall (13) being equipped with, and grate (15) is set above
Upper furnace hearth is set, fuel chambers (18) are arranged in upper furnace hearth top, furnace under grate (15) following settings, are the first ashes below lower furnace
Room (10) is dual ash chamber (12) below second of combustion chamber (9).
2. downdraft combustion furnace that is according to claim 1 while realizing bamboo timber stoving and bamboo and wood charcoal production zero-emission cigarette,
It is characterized in that, the upper furnace hearth two sides are respectively cooperating with setting the first ventilation duct (4) and third venting pipe (17), second of burning
Room (9) is equipped with the second ventilation duct (8)；The bell (1) is made of sheet metal, outside furnace bottom (11) and outside furnace wall (13)
All be sheet metal, liner is heat-resisting material, heat-resisting material common brick, refractory brick or fire clay, heat-resisting material with a thickness of
12-20 centimetres.
3. downdraft combustion furnace that is according to claim 1 while realizing bamboo timber stoving and bamboo and wood charcoal production zero-emission cigarette,
It is characterized in that, being followed successively by drying layer (2), charring layer (3), oxide layer (5), layer of charcoal from top to bottom in the fuel chambers (18)
(6) and reduction zone (7).
4. downdraft combustion furnace that is according to claim 2 while realizing bamboo timber stoving and bamboo and wood charcoal production zero-emission cigarette,
It is characterized in that, the surrounding outer wall of second of combustion chamber (9) is made of refractory material, with a thickness of 12-20 centimetres.
5. downdraft combustion furnace that is according to claim 2 while realizing bamboo timber stoving and bamboo and wood charcoal production zero-emission cigarette,
It is characterized in that, the nozzle of the first ventilation duct (4), the second ventilation duct (8) and third venting pipe (17) all match valve with adjust into
Air quantity, the first charing smog enters pipe (14) and following assembly second carbonizes smog and enters the nozzle of pipe (16) and matches valve all to adjust
It saves into smoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820328695.XU CN208136186U (en) | 2018-03-09 | 2018-03-09 | The downdraft combustion furnace of bamboo timber stoving and bamboo and wood charcoal production zero-emission cigarette is realized simultaneously |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820328695.XU CN208136186U (en) | 2018-03-09 | 2018-03-09 | The downdraft combustion furnace of bamboo timber stoving and bamboo and wood charcoal production zero-emission cigarette is realized simultaneously |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208136186U true CN208136186U (en) | 2018-11-23 |
Family
ID=64288308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820328695.XU Expired - Fee Related CN208136186U (en) | 2018-03-09 | 2018-03-09 | The downdraft combustion furnace of bamboo timber stoving and bamboo and wood charcoal production zero-emission cigarette is realized simultaneously |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208136186U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108179034A (en) * | 2018-03-09 | 2018-06-19 | 应佩荣 | The downdraft combustion furnace of bamboo timber stoving and bamboo and wood charcoal production zero-emission cigarette is realized simultaneously |
-
2018
- 2018-03-09 CN CN201820328695.XU patent/CN208136186U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108179034A (en) * | 2018-03-09 | 2018-06-19 | 应佩荣 | The downdraft combustion furnace of bamboo timber stoving and bamboo and wood charcoal production zero-emission cigarette is realized simultaneously |
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