CN109220251A - Agricultural high efficiency corn straw millstone - Google Patents
Agricultural high efficiency corn straw millstone Download PDFInfo
- Publication number
- CN109220251A CN109220251A CN201811168439.XA CN201811168439A CN109220251A CN 109220251 A CN109220251 A CN 109220251A CN 201811168439 A CN201811168439 A CN 201811168439A CN 109220251 A CN109220251 A CN 109220251A
- Authority
- CN
- China
- Prior art keywords
- crush box
- crushing knife
- support
- antiwind
- high efficiency
- 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.)
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F29/00—Cutting apparatus specially adapted for cutting hay, straw or the like
- A01F29/005—Cutting apparatus specially adapted for cutting hay, straw or the like for disintegrating and cutting up bales of hay, straw or fodder
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F29/00—Cutting apparatus specially adapted for cutting hay, straw or the like
- A01F29/02—Cutting apparatus specially adapted for cutting hay, straw or the like having rotating knives with their cutting edges in a plane perpendicular to their rotational axis
- A01F29/025—Cutting apparatus specially adapted for cutting hay, straw or the like having rotating knives with their cutting edges in a plane perpendicular to their rotational axis with feeding direction parallel to axis
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F29/00—Cutting apparatus specially adapted for cutting hay, straw or the like
- A01F29/09—Details
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention discloses a kind of agricultural high efficiency corn straw millstones, front end in crush box is provided with conveyer belt, corn stover is transported in crush box using conveyer belt, facilitate charging, by being provided with cutting tool right above conveyer belt, corn stover during transportation, using cutting tool shreds corn stover, then it imports in crush box and is crushed again, the crush efficiency of corn stover can be effectively improved；After crushing one end time in crush box, if being wound with corn stover on crushing knife tool, crushing knife tool is stopped to suitable position, lives crushing knife tool using antiwind pipe sleeve, the corn stover wound on crushing knife tool can be split away off, then rotary shaft is made to rotate 180 degree, antiwind processing is carried out using crushing knife tool of the antiwind pipe to the other end, does not need manually to be cleared up, not only increases the crush efficiency of corn stover, and it is time saving and energy saving, it is convenient for people to use.
Description
Technical field
The present invention relates to agriculture corn stover processing equipment technical field, specially a kind of agricultural high efficiency corn straw powder
Crushing device.
Background technique
Maize planting is the pith of China's grain-production, and the plantation amount and cultivated area of corn are respectively positioned on grain-production
Forefront, maize planting is exactly the processing problem of corn stover to the most great problem that people generate.Corn stover is corn
The residue in soil is stayed in after harvest, needs to be pulled out just to can be carried out new crop planting, can all be generated every year a large amount of
Corn stover residual, corn stover itself also contain a certain amount of nutriment, feed can be recycled as.Crops are photosynthetic
The product of effect has more than half to be present in stalk, and stalk is that one kind has rich in nitrogen, phosphorus, potassium, calcium, magnesium and organic matter etc.
Multiduty reproducible living resources, stalk are also a kind of roughage.Feature is the high 30%-40% of crude fiber content, and is contained
There is lignin etc..Though lignocellulose cannot be utilized by pig, chicken, can by the livestocks such as ruminant ox, sheep absorb and
It utilizes.
Existing corn straw smashing efficiency is lower, and during corn straw smashing, and corn stover is easy winding
On crushing knife tool, the use of crushing knife tool is influenced, needs manually often to clear up crushing knife tool, guarantees corn stover
Crush efficiency.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the existing defects, provides a kind of agricultural high efficiency corn stalk crushing
It is lower can effectively to solve existing corn straw smashing efficiency for device, and during corn straw smashing, corn stover
It is easy to be wrapped on crushing knife tool, influences the use of crushing knife tool, need manually often to clear up crushing knife tool, guarantee beautiful
The problem of rice stalk crush efficiency.
To achieve the above object, the invention provides the following technical scheme: agricultural use high efficiency corn straw millstone, including
Support column, workbench, cutting tool and crushing knife tool, there are six support column settings, respectively four the first support columns and
Two the second support columns, the support column are uniformly welded on the two sides of workbench, and the upper end side of the workbench is provided with
Conveyer belt, the upper end of first support column, which is threadably secured, is provided with electric telescopic rod, the electric telescopic rod it is upper
End is welded with the first support plate, and the upper end of first support plate is fixedly installed mounting base by screw, the mounting base
Upper end is fixedly installed with the first driving motor, and the output end of first driving motor is connected with cutting tool by belt, institute
The lower end that cutting tool is set to the first support plate is stated, the upper end other side of the surface of conveyer belt, the workbench is provided with
Putting hole, crush box is placed in the putting hole, and one end of the crush box passes through putting hole, is fixed at support rod
On, one end of the support rod is welded on the side of the first support column, and the upper end of the workbench is located at a side of crush box
There are four third support column, the upper end of the third support column is welded with the second support plate for edge fixed setting, and described second
The upper end of fagging, which is threadably secured, is provided with hydraulic cylinder, and one end of the hydraulic cylinder is connected with hydraulic stem, the hydraulic stem
One end passes through the second support plate, and is connected with connection transverse slat, and the bottom end of the connection transverse slat is evenly spaced to be provided with several
Antiwind pipe, the inside of the antiwind pipe is set as hollow structure, and one end middle position of the antiwind pipe is provided with
The bottom end in antiwind hole, the antiwind pipe is set in the through-hole on crush box top, the outer end side setting of the crush box
There is mounting plate, is threadably secured on the mounting plate and the second driving motor is installed, the output end of second driving motor
Axis connection has rotary shaft, and one end of the rotary shaft passes through the one side wall of crush box, and is set to the inside of crush box, the rotation
It is located at the side inside crush box in shaft and is provided with crushing knife tool, the tapered shape setting of crushing knife tool, the crushing knife
The size of tool matches with the cavity inside antiwind pipe.
As a preferred technical solution of the present invention, the side on the crush box close to conveyer belt is provided with charging
Mouthful, and the height of the feed inlet is slightly below conveyer belt, is mutually connected with one end of conveyer belt.
As a preferred technical solution of the present invention, two first support columns and second support column are set to
The same side of workbench, and two first support columns are disposed in proximity to the side of conveyer belt.
As a preferred technical solution of the present invention, the crushing knife of side in the quantity and rotary shaft of the antiwind pipe
It is identical to have quantity, and the antiwind pipe is set to the surface of rotary shaft.
It is solid by screw thread between first support plate and the second support plate as a preferred technical solution of the present invention
Surely it is provided with dust absorption fan, the input terminal of the dust absorption fan connects dust hood by sweep-up pipe, and the dust hood is located at charging
The surface of mouth, the output end of the dust absorption fan are connected with dust bag by sweep-up pipe.
As a preferred technical solution of the present invention, the bottom end of the mounting plate is fixed on support rod, and institute
The bottom end side for stating support rod is welded with support feet.
As a preferred technical solution of the present invention, the model YNT-03 of the electric telescopic rod, the crush box
Side be provided with observation window.
Side as a preferred technical solution of the present invention, one of them first support column is fixedly installed control
Panel processed is provided with multiple manipulation buttons on the control panel.
Compared with prior art, the beneficial effects of the present invention are: this kind of agricultural high efficiency corn straw millstone, passes through
The front end of crush box is provided with conveyer belt, corn stover is transported in crush box using conveyer belt, facilitates charging, by
Cutting tool is provided with right above conveyer belt, corn stover during transportation, using cutting tool carries out corn stover
Chopping, then imports in crush box again and is crushed, can effectively improve the crush efficiency of corn stover；It is crushed in crush box
After the time of one end, if being wound with corn stover on crushing knife tool, crushing knife tool is stopped to suitable position, antiwind pipe sleeve is utilized
Firmly crushing knife tool can split away off the corn stover wound on crushing knife tool, and rotary shaft is then made to rotate 180 degree, utilize
Antiwind pipe carries out antiwind processing to the crushing knife tool of the other end, does not need manually to be cleared up, not only increases corn stalk
The crush efficiency of stalk, and it is time saving and energy saving, it is convenient for people to use.
Detailed description of the invention
Fig. 1 is the overall structure diagram that agricultural of the present invention uses high efficiency corn straw millstone；
Fig. 2 is the mounting structure schematic diagram that agricultural of the present invention connects transverse slat with high efficiency corn straw millstone；
Fig. 3 is the structural schematic diagram that agricultural of the present invention uses the antiwind pipe of high efficiency corn straw millstone；
Fig. 4 is the schematic diagram of internal structure that agricultural of the present invention uses high efficiency corn straw millstone crush box；
Fig. 5 is the mounting structure schematic diagram that agricultural of the present invention uses high efficiency corn straw millstone dust hood；
In figure: 1, workbench；2, cutting tool；3, crushing knife tool；4, the first support column；5, the second support column；6, conveyer belt；7,
Electric telescopic rod；8, the first support plate；9, screw；10, mounting base；11, the first driving motor；12, belt；13, putting hole；
14, crush box；15, support rod；16, third support column；17, the second support plate；18, hydraulic cylinder；19, hydraulic stem；20, connection is horizontal
Plate；21, antiwind pipe；22, through-hole；23, mounting plate；24, the second driving motor；25, rotary shaft；26, antiwind hole；27, it inhales
Dirt blower；28, dust hood；29, feet is supported；30, control panel；31, button is manipulated.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-5 is please referred to, the present invention provides a kind of technical solution: agricultural high efficiency corn straw millstone, including branch
Dagger, workbench 1, cutting tool 2 and crushing knife tool 3, there are six the support column settings, respectively four the first support columns 4
With two the second support columns 5, the support column is uniformly welded on the two sides of workbench 1, and the upper end side of the workbench 1 is set
It is equipped with conveyer belt 6, the upper end of first support column 4, which is threadably secured, is provided with electric telescopic rod 7, the electric expansion
The upper end of bar 7 is welded with the first support plate 8, and the upper end of first support plate 8 is fixedly installed mounting base 10 by screw 9,
The upper end of the mounting base 10 is fixedly installed with the first driving motor 11, and the output end of first driving motor 11 passes through belt
12 are connected with cutting tool 2, and the cutting tool 2 is set to the lower end of the first support plate 8, the surface of conveyer belt 6, the work
The upper end other side for making platform 1 is provided with putting hole 13, is placed with crush box 14 in the putting hole 13, and the one of the crush box 14
End is fixed on support rod 15, one end of the support rod 15 is welded on the one of the first support column 4 across putting hole 13
Side, a side edge that the upper end of the workbench 1 is located at crush box 14 are fixedly installed four third support columns 16, and described
The upper end of three support columns 16 is welded with the second support plate 17, and the upper end of second support plate 17, which is threadably secured, is provided with liquid
Cylinder pressure 18, one end of the hydraulic cylinder 18 are connected with hydraulic stem 19, and one end of the hydraulic stem 19 passes through the second support plate 17, and
It is connected with connection transverse slat 20, the bottom end of the connection transverse slat 20 is evenly spaced to be provided with several antiwind pipes 21, described anti-
The inside of winding pipe 21 is set as hollow structure, and one end middle position of the antiwind pipe 21 is provided with antiwind hole 26,
The bottom end of the antiwind pipe 21 is set in the through-hole 22 on 14 top of crush box, and the outer end side of the crush box 14 is provided with
Mounting plate 23 is threadably secured on the mounting plate 23 and is equipped with the second driving motor 24, second driving motor 24
Output end axis connection has rotary shaft 25, and one end of the rotary shaft 25 passes through the one side wall of crush box 14, and is set to crush box
14 inside is located at the side inside crush box 14 in the rotary shaft 25 and is provided with crushing knife tool 3, and the crushing knife tool 3 is in
Cone-shaped setting, the size of the crushing knife tool 3 match with the cavity inside antiwind pipe 21.
In the present embodiment, it is preferred that the side on the crush box 14 close to conveyer belt 6 is provided with feed inlet, and described
The height of feed inlet is slightly below conveyer belt 6, is mutually connected with one end of conveyer belt 6.
In the present embodiment, it is preferred that two first support columns 4 and second support column 5 are set to workbench 1
The same side, and two first support columns 4 are disposed in proximity to the side of conveyer belt 6.
In the present embodiment, it is preferred that 3 quantity of crushing knife tool of side in the quantity and rotary shaft 25 of the antiwind pipe 21
It is identical, and the antiwind pipe 21 is set to the surface of rotary shaft 25.
In the present embodiment, it is preferred that be threadably secured and be provided between first support plate 8 and the second support plate 17
The input terminal of dust absorption fan 27, the dust absorption fan 27 connects dust hood 28 by sweep-up pipe, and the dust hood 28 is located at charging
The surface of mouth, the output end of the dust absorption fan 27 are connected with dust bag by sweep-up pipe.
In the present embodiment, it is preferred that the bottom end of the mounting plate 23 is fixed on support rod 15, and the support rod
15 bottom end side is welded with support feet 29.
In the present embodiment, it is preferred that the model YNT-03 of the electric telescopic rod 7, the side of the crush box 14 is set
It is equipped with observation window.
In the present embodiment, it is preferred that the side of one of them first support column 4 is fixedly installed control panel 30,
Multiple manipulation buttons 31 are provided on the control panel 30.
The working principle of the invention and process for using: corn stover is placed on conveyer belt 6, is opened conveyer belt 6, first and is driven
Dynamic motor 11, electric telescopic rod 7 and dust absorption fan 27, electric telescopic rod 7 drive the first support plate 8 to move up and down,
During conveyer belt 6 drives corn stover to move into crush box 14, the first driving motor 11 is cut by the drive of belt 12
The corn stover that cutter has on 2 pairs of conveyer belts 6 carries out segmentation cutting, so that becoming into the corn stover strip in crush box 14
It is small, the crush efficiency of corn stover can not only be improved, but also can be reduced corn stover and be wrapped on crushing knife tool 3, dust suction
Blower 27 sucks the dust generated in cutting process in dust bag, avoids the health of harmful to human；It is beaten by manipulating button 31
The second driving motor 24 is opened, so that the second driving motor 24 drives rotary shaft 25 and crushing knife tool 3 to carry out high speed rotation, utilizes powder
Broken cutter 3 crushes corn stover in crush box 14, in crushing process, if there is corn stover to be wrapped on crushing knife tool 3,
Then the crush efficiency of crushing knife tool 3 can be made to substantially reduce, close the second driving motor 24 at this time, so that in final rotary shaft 25
The crushing knife tool 3 of side is located at the top of rotary shaft 25, then opens hydraulic cylinder 18, and hydraulic cylinder 18 drives hydraulic stem 19
Antiwind pipe 21 gos deep into inside crush box 14, and the crushing knife tool 3 by 26 sets of the antiwind hole of antiwind 21 bottom end of pipe in taper
On, so that crushing knife tool 3 gos deep into the cavity in antiwind pipe 21, the corn stover wound on crushing knife tool 3 can be fallen off,
Antiwind pipe 21 is withdrawn by hydraulic cylinder 18, then makes rotary shaft 25 rotate 180 degree by manipulating button 31, utilizes again
Antiwind pipe 21 handles the crushing knife tool 3 of 25 other side of rotary shaft, after the completion of processing, continues to carry out powder to corn stover
The crush efficiency of corn stover can be improved in broken processing.
This kind of agricultural high efficiency corn straw millstone is provided with conveyer belt by the front end in crush box, utilizes biography
It send band that corn stover is transported in crush box, facilitates charging, by being provided with cutting tool, corn right above conveyer belt
Stalk during transportation, using cutting tool shreds corn stover, then imports in crush box and is crushed again, energy
Enough effectively improve the crush efficiency of corn stover；After crushing one end time in crush box, if being wound with corn on crushing knife tool
Stalk, crushing knife tool is stopped to suitable position, live crushing knife tool using antiwind pipe sleeve, can will be wound on crushing knife tool
Corn stover is split away off, and rotary shaft is then made to rotate 180 degree, is carried out using crushing knife tool of the antiwind pipe to the other end anti-tangle
Around processing, does not need manually to be cleared up, not only increase the crush efficiency of corn stover, and time saving and energy saving, facilitate people
Use.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. agricultural high efficiency corn straw millstone, including support column, workbench (1), cutting tool (2) and crushing knife tool
(3), which is characterized in that there are six the support column settings, respectively four the first support columns (4) and two the second support columns
(5), the support column is uniformly welded on the two sides of workbench (1), and the upper end side of the workbench (1) is provided with conveyer belt
(6), the upper end of first support column (4), which is threadably secured, is provided with electric telescopic rod (7), the electric telescopic rod
(7) upper end is welded with the first support plate (8), and the upper end of first support plate (8) is fixedly installed installation by screw (9)
Seat (10), the upper end of the mounting base (10) are fixedly installed with the first driving motor (11), first driving motor (11)
Output end is connected with cutting tool (2) by belt (12), and the cutting tool (2) is set to the lower end of the first support plate (8),
The upper end other side of the surface of conveyer belt (6), the workbench (1) is provided with putting hole (13), in the putting hole (13)
It is placed with crush box (14), one end of the crush box (14) passes through putting hole (13), is fixed on support rod (15), institute
The one end for stating support rod (15) is welded on the side of the first support column (4), and the upper end of the workbench (1) is located at crush box (14)
A side edge be fixedly installed four third support columns (16), the upper end of the third support column (16) is welded with second
Fagging (17), the upper end of second support plate (17), which is threadably secured, to be provided with hydraulic cylinder (18), the hydraulic cylinder (18)
One end be connected with hydraulic stem (19), one end of the hydraulic stem (19) passes through the second support plate (17), and it is horizontal to be connected with connection
Plate (20), the bottom end of connection transverse slat (20) is evenly spaced to be provided with several antiwind pipes (21), the antiwind pipe
(21) inside is set as hollow structure, and one end middle position of the antiwind pipe (21) is provided with antiwind hole (26),
The bottom end of the antiwind pipe (21) is set in the through-hole (22) on crush box (14) top, the outer end one of the crush box (14)
Side is provided with mounting plate (23), is threadably secured and is equipped with the second driving motor (24) on the mounting plate (23), and described
The output end axis connection of two driving motors (24) has rotary shaft (25), and one end of the rotary shaft (25) passes through crush box (14)
One side wall, and it is set to the inside of crush box (14), crush box (14) internal side setting is located on the rotary shaft (25)
Have crushing knife tool (3), the tapered shape setting of crushing knife tool (3), the size of the crushing knife tool (3) and antiwind pipe (21)
Internal cavity matches.
2. agricultural high efficiency corn straw millstone according to claim 1, it is characterised in that: the crush box (14)
The upper side close to conveyer belt (6) is provided with feed inlet, and the height of the feed inlet is slightly below conveyer belt (6), with conveyer belt
(6) one end is mutually connected.
3. agricultural high efficiency corn straw millstone according to claim 1, it is characterised in that: two described first
Dagger (4) and second support column (5) are set to the same side of workbench (1), and two the first support column (4) settings
In the side close to conveyer belt (6).
4. agricultural high efficiency corn straw millstone according to claim 1, it is characterised in that: the antiwind pipe
(21) quantity is identical as crushing knife tool (3) quantity of side on rotary shaft (25), and the antiwind pipe (21) is set to rotation
The surface of shaft (25).
5. agricultural high efficiency corn straw millstone according to claim 1, it is characterised in that: first support plate
(8) it is threadably secured and is provided with dust absorption fan (27) between the second support plate (17), the input of the dust absorption fan (27)
End connects dust hood (28) by sweep-up pipe, and the dust hood (28) is located at the surface of feed inlet, the dust absorption fan (27)
Output end dust bag is connected with by sweep-up pipe.
6. agricultural high efficiency corn straw millstone according to claim 1, it is characterised in that: the mounting plate (23)
Bottom end be fixed on support rod (15), and the bottom end side of the support rod (15) be welded with support feet (29).
7. agricultural high efficiency corn straw millstone according to claim 1, it is characterised in that: the electric telescopic rod
(7) model YNT-03, the side of the crush box (14) is provided with observation window.
8. agricultural high efficiency corn straw millstone according to claim 1, it is characterised in that: one of them described the
The side of one support column (4) is fixedly installed control panel (30), is provided with multiple manipulation buttons on the control panel (30)
(31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811168439.XA CN109220251A (en) | 2018-10-08 | 2018-10-08 | Agricultural high efficiency corn straw millstone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811168439.XA CN109220251A (en) | 2018-10-08 | 2018-10-08 | Agricultural high efficiency corn straw millstone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109220251A true CN109220251A (en) | 2019-01-18 |
Family
ID=65055736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811168439.XA Withdrawn CN109220251A (en) | 2018-10-08 | 2018-10-08 | Agricultural high efficiency corn straw millstone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109220251A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109874519A (en) * | 2019-04-25 | 2019-06-14 | 南昌工程学院 | It is novel to cut the super pulverizer of formula straw |
| CN110202719A (en) * | 2019-06-20 | 2019-09-06 | 界首市东威塑业有限公司 | A kind of processing of PE material recovery particle disintegrating apparatus and its operating method |
| CN110622713A (en) * | 2019-10-30 | 2019-12-31 | 邳州亚联环保科技有限公司 | Agricultural corn stalk environmental protection treatment equipment |
| CN110771362A (en) * | 2019-12-02 | 2020-02-11 | 杨晗春 | Straw reducing mechanism for agricultural production |
| CN112718197A (en) * | 2020-12-17 | 2021-04-30 | 杨允廷 | Agricultural straw recovery processing device |
-
2018
- 2018-10-08 CN CN201811168439.XA patent/CN109220251A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109874519A (en) * | 2019-04-25 | 2019-06-14 | 南昌工程学院 | It is novel to cut the super pulverizer of formula straw |
| CN110202719A (en) * | 2019-06-20 | 2019-09-06 | 界首市东威塑业有限公司 | A kind of processing of PE material recovery particle disintegrating apparatus and its operating method |
| CN110622713A (en) * | 2019-10-30 | 2019-12-31 | 邳州亚联环保科技有限公司 | Agricultural corn stalk environmental protection treatment equipment |
| CN110771362A (en) * | 2019-12-02 | 2020-02-11 | 杨晗春 | Straw reducing mechanism for agricultural production |
| CN112718197A (en) * | 2020-12-17 | 2021-04-30 | 杨允廷 | Agricultural straw recovery processing device |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190118 |
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| WW01 | Invention patent application withdrawn after publication |