CN109041661A - A kind of multi-functional one-stop straw-carbonized returning to the field scattering machine - Google Patents
A kind of multi-functional one-stop straw-carbonized returning to the field scattering machine Download PDFInfo
- Publication number
- CN109041661A CN109041661A CN201810820529.6A CN201810820529A CN109041661A CN 109041661 A CN109041661 A CN 109041661A CN 201810820529 A CN201810820529 A CN 201810820529A CN 109041661 A CN109041661 A CN 109041661A
- Authority
- CN
- China
- Prior art keywords
- carbonization
- burner hearth
- crushing device
- carbonized
- water tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C3/00—Treating manure; Manuring
- A01C3/06—Manure distributors, e.g. dung distributors
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D82/00—Crop conditioners, i.e. machines for crushing or bruising stalks
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F11/00—Other organic fertilisers
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
- C10B53/02—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of cellulose-containing material
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- 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
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
Abstract
The present invention provides a kind of multi-functional one-stop straw-carbonized returning to the field scattering machines, including crossbeam, crossbeam is connected with molding machine, molding machine is connected with grinding device, grinding device is connected with conveying device, the molding machine lower end is equipped with carbonizing plant, the carbonizing plant includes carbonization burner hearth, the burner hearth that is carbonized is set in cooling water tank, both ends are fixedly connected with cooling water tank, cooling water tank end is equipped with carbonization feeding inlet, carbonization burner hearth both ends connect with carbonization transmission device activity, carbonization transmission device is connected with carbide furnace retarder and carbide furnace motor, first half circumference is equipped with burner hearth insulating layer outside the carbonization burner hearth.The present invention can directly farmland stalk from crush, compression, be made again be easy to crops absorption fine particle directly shed after carbonization treatment in farmland, the waste for avoiding simple directly crop straw burning pollution on the environment and resource, reduces the generation of pest and disease damage.
Description
Technical field
The invention belongs to agricultural equipment technical fields, relate in particular to a kind of multi-functional one-stop straw-carbonized returning to the field throwing
Spread machine.
Background technique
In the prior art, to stalk handled there are two types of method, first is that directly using straw scattering draught in farmland as fertilizer,
Another kind is will to shed after crop straw burning in farmland.The season of grain harvest and the maturity period of weeds, weeds are mingled in stalk
In, there are also various harmful worm's ovums also to produce on weeds and stalk, stalk is directly shed in farmland, equal to the seed weeds
And various harmful worm's ovums are also sowed in farmland, so, the farmland weed in the coming year and pest can be more and more；It is simple straight
Connecing burning not only polluted environment, but also cause the waste of resource.
Summary of the invention
The present invention provides a kind of multi-functional one-stop straw-carbonized returning to the field scattering machines, solve the stalk in background technique
Disadvantage more than environmental pollution caused by returning to the field, the wasting of resources and pest and disease damage.
The technical scheme of the present invention is realized as follows: a kind of multi-functional one-stop straw-carbonized returning to the field scattering machine, including
Crossbeam, crossbeam are connected with molding machine, and molding machine is connected with grinding device, and grinding device is connected with conveying device, it is described at
Type device lower end be equipped with carbonizing plant, the carbonizing plant include carbonization burner hearth, carbonization burner hearth be set to cooling water tank in, both ends with
Cooling water tank is fixedly connected, and cooling water tank end is equipped with carbonization feeding inlet, carbonization burner hearth both ends and carbonization transmission device activity phase
It connects, carbonization transmission device is connected with carbide furnace retarder and carbide furnace motor, outside the carbonization burner hearth on first half circumference
Equipped with burner hearth insulating layer；
Preferably, the grinding device includes crushing device shell, and crushing device hull outside is equipped with shield, crushing device shell
Body is flexibly connected by hinge with cooling water tank, and center breaker roll, side breaker roll are equipped in crushing device shell, and center is broken
Roller, side breaker roll are connected with crushing device gear-box, crushing device motor, and crushing device casing peripheral is equipped with broken nail；
Preferably, the molding machine includes being set to the intracorporal center molding roller of crushing device shell, side molding roller and feeding
Device, center breaker roll, side breaker roll, center molding roller, side molding roller and feed appliance are in star in crushing device shell
Circle distribution, center molding roller, side molding roller and feed appliance are connected with molding machine gear-box, center molding roller, side
Closed annulus molding raceway is formed on the circumference of molding roller, the lower section of crushing device shell moulding section is equipped with shaping blank
Outlet；
Preferably, the conveying device includes transmission device, and transmission device is connected with conveyor motors, and transmission device two sides are set
There is backplate；
Preferably, the crushing device is connected with dust-extraction unit, and the dust-extraction unit is included in crushing device shell two sides and is equipped with
Dust mouth, the dust mouth is connected with dust exhaust apparatus, and the dust exhaust apparatus is connected with dust-proof water tank, dust-proof water tank be equipped with plus
The mouth of a river, filler are equipped with filler cap；
Preferably, latter half of outside the carbonization burner hearth to be equipped with fume ducts, carbonization burner hearth rear end is equipped with axial flow blower, flue dust pipe
Road is connected with cooling water tank, and carbonization burner hearth end is equipped with finished product discharge port；
Preferably, the cooling water tank lower part is equipped with outlet of sewer.
The beneficial effects of the present invention are: the present invention can directly farmland stalk from crush, compression, then be made and be easy to agriculture
The fine particle that crop absorbs directly is shed after carbonization treatment in farmland, allows the fertile grain in soil to increase production, weeds pest and disease damage
It eliminates completely, not only avoids the waste of simple directly crop straw burning pollution on the environment and resource, also omit a large amount of
The person property's power for transporting stalk and place and time are collected, while also having striven for more quality time for the cultivation of peasant,
Also omit the expense and time of artificial material resources of fertilising etc., it is ensured that the smooth sowing of next season grain.
Detailed description of the invention
Fig. 1 is overall appearance figure of the invention；
Fig. 2 is main part top view of the invention；
Fig. 3 is the A-A sectional view of Fig. 2；
Fig. 4 is the B-B sectional view of Fig. 3.
Part explanation
1, crossbeam, 2, carbide furnace motor, 3, carbide furnace retarder, 4, molding machine gear-box, 5, dust-proof water tank, 6, filler
Lid, 7, wheel, 8, dust exhaust apparatus, 9, shield, 10, feed device motor, 11, transmission device, 12, backplate, 13, finished product discharging
Mouthful, 14, axial flow blower, 15, fume ducts, 16, carbonization transmission device, 17, burner hearth insulating layer, 18, side molding roller, 19, hinge
Chain, 20, molding raceway, 21, center molding roller, 22, feed appliance, 23, filler, 24, broken nail, 25, center breaker roll,
26, dust mouth, 27, side breaker roll, 28, crushing device shell, 29, crushing device gear-box, 30, crushing device motor, 31, drop
Reservoir, 32, carbonization burner hearth, 33, carbonization feeding inlet, 34, shaping blank outlet, 35, outlet of sewer.
Specific embodiment
For a better understanding and implementation, the invention will be further described below in conjunction with the accompanying drawings: an a kind of multi-functional station
The straw-carbonized returning to the field scattering machine of formula, including crossbeam 1, crossbeam 1 are connected with molding machine, and molding machine is connected with grinding device, powder
Crushing device is connected with conveying device, and the molding machine lower end is equipped with carbonizing plant, and carbonizing plant includes carbonization burner hearth 32, carbonization
Burner hearth 32 is set in cooling water tank 31, and both ends are fixedly connected with cooling water tank 31, and 31 end of cooling water tank is equipped with carbonization feeding inlet
33, carbonization 32 both ends of burner hearth connect with helical form carbonization 16 activity of transmission device, helical form carbonization transmission device 16 and carbide furnace
Retarder 3 is connected with carbide furnace motor 2, and carbonization 32 outside first half circumference of burner hearth is equipped with burner hearth insulating layer 17, carbide furnace
32 outside of thorax is latter half of to be equipped with fume ducts 15, and carbonization 32 rear end of burner hearth is equipped with axial flow blower 14, fume ducts 15 and temperature lowering water
Case 31 is connected, and 31 lower part of cooling water tank is equipped with outlet of sewer 35, and carbonization 32 end of burner hearth is equipped with finished product discharge port 13；Grinding device
Including crushing device shell 28, shield 9 is equipped with outside crushing device shell 28, crushing device shell 28 passes through hinge 19 and drop
Reservoir 31 is flexibly connected, and center breaker roll 25, side breaker roll 27, center breaker roll 25, side are equipped in crushing device shell 28
Breaker roll 27 is connected with crushing device gear-box 29, crushing device motor 30, and 28 periphery of crushing device shell is equipped with broken nail 24,
Molding machine includes center molding roller 21, side molding roller 18 and the feed appliance 22 crossed in shell 28 set on crushing device, in
Heart breaker roll 25, side breaker roll 27, center molding roller 21, side molding roller 18 and feed appliance 22 are in crushing device shell 28
In star circle distribution, center molding roller 21, side molding roller 18 and feed appliance 22 are connected with molding machine gear-box 4, in
Heart molding roller 21, side molding roller 18 circumference on shape closed annulus in a row form raceway 20, crushing device shell 28
The lower section of moulding section is equipped with shaping blank outlet 34；Conveying device includes transmission device 11, transmission device 11 and transmission device
Motor 10 is connected, and 11 two sides of transmission device are equipped with backplate 12；Crushing device is connected with dust-extraction unit, and dust-extraction unit is included in broken
The dust mouth 26 that 28 two sides of device housing are equipped with, dust mouth 26 are connected with dust exhaust apparatus 8, dust exhaust apparatus 8 and 5 phase of dust-proof water tank
Even, dust-proof water tank 5 is equipped with filler 23, and filler 23 is equipped with filler cap 6.
A kind of multi-functional one-stop straw-carbonized returning to the field scattering machine, it is mainly by car body and invention main body two large divisions's group
At body part is once reequiped using existing suitable lorry vehicle head part and part car body crossbeam, can be with
Invention main body is combined well.Invention main body can also be used as an independent product, with various harvest machineries and grain
Shelling machine is mating, is moved by other power to draw.
Specifically, crossbeam 1, wheel 7, cooling water tank 31 constitute the frame structure of invention main body, crushing device shell 28
It is flexibly connected by hinge 19 with cooling water tank 31, center breaker roll 25, side breaker roll 27, side molding roller 18, center molding
Roll 21, feed appliance 22 are in star circumference in crushing device shell 28, pass through molding machine gear-box 4 and crushing device
Gear-box 29 transmits power by crushing device motor 30, and harvest machinery is shed the stalk in farmland and is manually pitched into transmission
Device 11 passes through feed device motor 10, shield 9, and backplate 12 is sent into crushing device shell 28, by crushing device shell
The broken nail 24 of the periphery setting of body 28, tear to stalk and is broken into powdered with the dentation blade of breaker roll, then passes through
Powdered stalk is sent to molding machine by feed appliance 22, is equipped with dust mouth 26 in the two sides of crushing device shell 28, is passed through
Dust in shattering process is discharged into dust-proof water tank 5 and is dusted by dust exhaust apparatus 8, and water tank is filled it up with by filler 23 plus water
It is covered afterwards with filler cap 6.The closed annulus of a row is formd on the circumference of side molding roller 18 and center molding roller 21
Raceway 20 is formed, short cylindrical shape particle has been made under the mutual extrusion of roll, shaping blank outlet 34 is arranged in crushing device
The lower part of 28 moulding section of shell, carbonization feeding inlet 33 are arranged in 31 end of cooling water tank and 28 junction of crushing device shell,
Thus short cylindrical shape particle enters in carbonization burner hearth 32, carbonization burner hearth 32 is arranged in cooling water tank 31, both ends and cooling water tank
31 are fixedly connected, and helical form carbonization transmission device 16 is connect with carbonization 32 both ends activity of burner hearth, pass through carbide furnace motor 2 and carbonization
Furnace retarder 3 drives the carbonization and transmission of the helical form carbonization progress carbonized particles of transmission device 16, in the outside of carbonization burner hearth 32
First half circumference on wrapped up one circle burner hearth insulating layer 17, with ensure be carbonized burner hearth 32 in temperature not by cooling water tank 31
Influence, be the high-temperature area of carbide furnace, and carbonization shaping blank from carbonization feeding inlet 33 to burner hearth insulating layer 17 from molding
Billet exit 34 falls into the region that carbonization feeding inlet 33 is carbonized, and carbonization is an extremely slow process, is needed
It burns under oxygen free condition, the blank being carbonized, which is set in the high-temperature area of carbide furnace, completes burning, the flue dust in carbonisation
It by axial flow blower 14 and fume ducts 15, is drained into cooling water tank 31 and is filtered and hydrolyzes, be allowed to eliminate to environment
It influences, flue dust, which incorporates in water, can generate a kind of liquefied ammonia, can be used as liquid nitrogen fertilizer from outlet of sewer 35 and be directly discharged into farmland, carbon
Change the low-temperature region that sufficient carbon granules progresses into carbonization burner hearth 32, cools to safe shape under the cold water effect of cooling water tank 31
State directly sprays it in farmland from finished product discharge port 13 finally by axial flow blower 14.
Suitable lorry vehicle is once reequiped, in the case where having no substantial effect on its original performance, makes its change
At the organic substance in various stalks and rubbish can be crushed whenever and wherever possible, graininess blank molding, then again
Carry out smokeless, innoxious carbonization treatment, it is ensured that the innoxious standard of environmental requirement and product in production link makes have pest
Break off regeneration and communication function at a high temperature of the seed and some other disinfect pathogen of ovum and weeds are in carbonisation, passes through
The stalk and organic matter of carbonization treatment become good natural potash fertilizer, and improvement soil could really be played by being sprinkling upon farmland in this way,
Increase the effect of crops nutrient, while decreasing the life condition of weeds and various pests, year after year, the weeds in farmland
Will necessarily be fewer and fewer with various pests, soil also can be more and more fertile, to realize without the innoxious organic agriculture production of pesticide
Kilter, not only protect environment, but also alleviate government and the burden of peasant, while also increasing personal income.
The other function of multi-functional one-stop straw-carbonized returning to the field scattering machine be by replace graininess blank forming die,
Smokeless biological carbonized fuel is made, can partially replace mineral charcoal and coal consumption of living, and more environmental-protecting performance, application range
More extensively.A large amount of heat can be generated in carbonisation, can be used for drying, wash hot bath, warming etc., part replaces pot
The function of furnace not only has very objective energy-saving effect, but also creates great economic benefit, while saving
Great convenience is brought, to protection environment, the haze reduced in air has boundless meaning.
Claims (7)
1. a kind of multi-functional one-stop straw-carbonized returning to the field scattering machine, including crossbeam (1), crossbeam (1) are connected with molding machine, at
Type device is connected with grinding device, and grinding device is connected with conveying device, it is characterised in that the molding machine lower end is equipped with carbon
Makeup is set, and the carbonizing plant includes carbonization burner hearth (32), and carbonization burner hearth (32) is set in cooling water tank (31), both ends and cooling
Water tank (31) is fixedly connected, and cooling water tank (31) end is equipped with carbonization feeding inlet (33), and carbonization burner hearth (32) both ends and carbonization pass
Device (16) activity is sent to connect, carbonization transmission device (16) is connected with carbide furnace retarder (3) and carbide furnace motor (2), described
Burner hearth (32) the external first half circumference that is carbonized is equipped with burner hearth insulating layer (17).
2. a kind of multi-functional one-stop straw-carbonized returning to the field scattering machine as described in claim 1, it is characterised in that the crushing
Device includes crushing device shell (28), is equipped with shield (9) outside crushing device shell (28), crushing device shell (28) is logical
It crosses hinge (19) to be flexibly connected with cooling water tank (31), center breaker roll (25) is equipped in crushing device shell (28), side is crushed
Roller (27), center breaker roll (25), side breaker roll (27) are connected with crushing device gear-box (29), crushing device motor (30),
Crushing device shell (28) periphery is equipped with broken nail (24).
3. multi-functional one-stop straw-carbonized returning to the field scattering machine as claimed in claim 1 or 2 a kind of, it is characterised in that it is described at
Type device includes center molding roller (21), side molding roller (18) and the feed appliance crossed in shell (28) set on crushing device
(22), center breaker roll (25), side breaker roll (27), center molding roller (21), side molding roller (18) and feed appliance (22)
It is in star circle distribution, center molding roller (21), side molding roller (18) and feed appliance in crushing device shell (28)
(22) be connected with molding machine gear-box (4), center molding roller (21), side molding roller (18) circumference on formed it is closed
Annulus forms raceway (20), and the lower section of crushing device shell (28) moulding section is equipped with shaping blank outlet (34).
4. a kind of multi-functional one-stop straw-carbonized returning to the field scattering machine as claimed in claim 1 or 2, it is characterised in that described defeated
Sending device includes transmission device (11), and transmission device (11) is connected with conveyor motors (10), and transmission device (11) two sides are set
There are backplate (12).
5. a kind of multi-functional one-stop straw-carbonized returning to the field scattering machine as claimed in claim 1 or 2, it is characterised in that described broken
Crushing device is connected with dust-extraction unit, and the dust-extraction unit is included in the dust mouth (26) that crushing device shell (28) two sides are equipped with,
The dust mouth (26) is connected with dust exhaust apparatus (8), and the dust exhaust apparatus (8) is connected with dust-proof water tank (5), dust-proof water tank (5)
It is equipped with filler (23), filler (23) are equipped with filler cap (6).
6. a kind of multi-functional one-stop straw-carbonized returning to the field scattering machine as described in claim 1, it is characterised in that the carbonization
Burner hearth (32) is external latter half of equipped with fume ducts (15), and carbonization burner hearth (32) rear end is equipped with axial flow blower (14), fume ducts
(15) it is connected with cooling water tank (31), carbonization burner hearth (32) end is equipped with finished product discharge port (13).
7. a kind of multi-functional one-stop straw-carbonized returning to the field scattering machine as claimed in claim 1 or 2, it is characterised in that the drop
Reservoir (31) lower part is equipped with outlet of sewer (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810820529.6A CN109041661A (en) | 2018-07-24 | 2018-07-24 | A kind of multi-functional one-stop straw-carbonized returning to the field scattering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810820529.6A CN109041661A (en) | 2018-07-24 | 2018-07-24 | A kind of multi-functional one-stop straw-carbonized returning to the field scattering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109041661A true CN109041661A (en) | 2018-12-21 |
Family
ID=64836162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810820529.6A Pending CN109041661A (en) | 2018-07-24 | 2018-07-24 | A kind of multi-functional one-stop straw-carbonized returning to the field scattering machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN109041661A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112552942A (en) * | 2020-12-23 | 2021-03-26 | 陈须琨 | Efficient straw carbonization and field returning device and preparation method |
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| CN103727781A (en) * | 2014-01-14 | 2014-04-16 | 湖南顶立科技有限公司 | Intermittent carbonization furnace |
| CN104604445A (en) * | 2015-01-22 | 2015-05-13 | 孟令启 | Straw field returning device |
| CN204762176U (en) * | 2015-07-13 | 2015-11-18 | 程革林 | Combine with straw carbonization function |
| CN205953922U (en) * | 2016-08-15 | 2017-02-15 | 天津烽能科技有限公司 | Straw carbonization processing equipment |
| CN107262238A (en) * | 2017-08-10 | 2017-10-20 | 何秋英 | A kind of broken carbonization cuber of stalk |
| CN107318386A (en) * | 2017-08-09 | 2017-11-07 | 程革林 | A kind of agricultural machinery with straw field pickup and carbonization complex function |
-
2018
- 2018-07-24 CN CN201810820529.6A patent/CN109041661A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2909988A (en) * | 1955-10-27 | 1959-10-27 | Int Harvester Co | Reciprocating conveyor hay crusher |
| CN102575170A (en) * | 2009-10-01 | 2012-07-11 | 伊藤护 | Carbonizing device |
| CN103157650A (en) * | 2013-03-29 | 2013-06-19 | 周永林 | Multifunctional garbage comprehensive treatment machine |
| CN103727781A (en) * | 2014-01-14 | 2014-04-16 | 湖南顶立科技有限公司 | Intermittent carbonization furnace |
| CN104604445A (en) * | 2015-01-22 | 2015-05-13 | 孟令启 | Straw field returning device |
| CN104604445B (en) * | 2015-01-22 | 2016-06-29 | 孟令启 | A kind of stalk returning device |
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| CN205953922U (en) * | 2016-08-15 | 2017-02-15 | 天津烽能科技有限公司 | Straw carbonization processing equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112552942A (en) * | 2020-12-23 | 2021-03-26 | 陈须琨 | Efficient straw carbonization and field returning device and preparation method |
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Application publication date: 20181221 |