CN111842423A - Automatic agricultural grain straw smashing and stacking device - Google Patents

Automatic agricultural grain straw smashing and stacking device Download PDF

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Publication number
CN111842423A
CN111842423A CN202010686513.8A CN202010686513A CN111842423A CN 111842423 A CN111842423 A CN 111842423A CN 202010686513 A CN202010686513 A CN 202010686513A CN 111842423 A CN111842423 A CN 111842423A
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CN
China
Prior art keywords
stacking
group
pile
platform
smashing
Prior art date
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Withdrawn
Application number
CN202010686513.8A
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Chinese (zh)
Inventor
谢秀荣
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202010686513.8A priority Critical patent/CN111842423A/en
Publication of CN111842423A publication Critical patent/CN111842423A/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/24—Drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/26—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
    • B30B1/261—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks by cams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/30—Feeding material to presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/32—Discharging presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/34—Devices for discharging articles or materials from conveyor 
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/82—Rotary or reciprocating members for direct action on articles or materials, e.g. pushers, rakes, shovels

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Threshing Machine Elements (AREA)

Abstract

The invention relates to the technical field of straw treatment, and discloses an automatic agricultural grain straw smashing and stacking device which comprises a box body, a discharge hole, a smashing cavity, a feeding channel and a smashing motor, wherein the box body is provided with a feeding hole; the inside of the box that is located under the feed opening is provided with a set of pile up neatly platform, the top left side of pile up neatly platform rotates through the dwang and is connected with a set of rotor plate, the right side fixed mounting of pile up neatly platform has a set of fixing base, and the outside removal in inside left side of fixing base is connected with a set of slurcam, the portable two sets of stripper plates that are connected with of bilateral symmetry around the top of pile up neatly platform, be provided with a set of portable to the inboard gravity piece of pile up neatly platform under the pile up neatly platform, the top fixedly connected with of gravity piece a set of connecting rod of the L type structure that extends right, the upside fixed mounting of fixing base has a set of rotating. The invention has the advantages that: automatic operation, fast speed, high working efficiency and good stability of straw forming.

Description

Automatic agricultural grain straw smashing and stacking device
Technical Field
The invention relates to the technical field of straw treatment, in particular to an automatic agricultural grain straw smashing and stacking device.
Background
The straw is a general term of the stem and leaf parts of mature crops. Generally, the residual parts of wheat, rice, corn, potatoes, rape, cotton, sugarcane and other crops after seeds are harvested are burnt on the spot in rural areas of China by people to increase the fertilizer of the land, but air pollution is caused.
Chinese patent (publication No. CN 209897693U, published as 2020.01.07) discloses an agricultural straw treatment device, which comprises a feeding device, a treatment device and a material collecting device, wherein straws are placed in a guide assembly, a conveying assembly is used for conveying the straws to a rolling assembly, the straws are rolled by the rolling assembly to be flat, a prepressing assembly is used for pressing the rolled straws, a cutting assembly is used for conveying the cut straws into small fragments to a material collecting box, and a grinding assembly is used for carrying and grinding the straw fragments falling into the material collecting box into particles. This equipment is only carrying out simple smashing with the straw, does not carry out reasonable effectual processing to it to the straw after smashing has great degree of difficulty on the problem of collection and transportation because weight is lighter, consequently needs to design one kind and possesses that the straw is smashed and be convenient for collect the device of transporting.
Disclosure of Invention
The invention aims to provide an automatic agricultural grain straw smashing and stacking device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an automatic agricultural grain straw smashing and stacking device comprises a box body, a discharge port, a smashing cavity, a feeding channel and a smashing motor; the box sets up to the rectangle structure, the rectangle discharge gate has been seted up to the left side wall lower part of box, the top intermediate position fixed mounting of box has a set of crushing chamber, the outside intercommunication in inside left side in crushing chamber has the feedstock channel who is used for the straw input, the inside right side in crushing chamber is seted up downwards and is used for the feed opening of straw after will smashing downbearing, be provided with a set of horizontal axis of rotation directly over the feed opening, fixed mounting has two sets of crushing swoves side by side about in the axis of rotation, the right-hand member of axis of rotation rotates and is connected with the crushing motor who fixes in crushing chamber right side wall inside, through starting two sets of crushing swoves of crushing motor drive rotation, thereby smash the straw. The bottom of feed opening intercommunication has the unloading passageway that sets up top in the box, and the inside of the box that is located the feed opening under is provided with a set of pile up neatly platform, and the bottom of unloading passageway extends to the left side wall upper portion of pile up neatly platform, is convenient for input the straw after smashing from the left side upper portion of pile up neatly platform through the unloading passageway. The bottom of the stacking table is fixed at the inner bottom of the box body through a plurality of groups of uniformly distributed stand columns, the left side of the top of the stacking table is rotatably connected with a group of rotating plates through rotating rods, a group of output belts with the height consistent with the outer bottom of the stacking table are arranged on the left side of the stacking table, the left ends of the output belts are connected to the discharge port, when the rotating plates swing leftwards to be horizontal, the tail ends of the rotating plates are arranged on the upper sides of the output belts, a group of fixing seats are fixedly arranged on the right side of the stacking table, the inner left side of each fixing seat is connected with a group of pushing plates in an outward moving mode, the middle parts of the right side walls of the pushing plates are connected with a group of first hydraulic cylinders fixed on the inner right sides of the fixing seats through hydraulic rods rightwards, the front side and the back side of the top of, the second hydraulic cylinder is started to drive the extrusion plate to move back and forth, and then the crushed straws input to the stacking table are extruded and molded. The utility model discloses a set of pile up neatly platform, including the fixing base, the fixing base is fixed with the connecting rod of L type structure that extends right, and the upside right-hand member of connecting rod is vertical to be provided with a set of portable to the inboard gravity piece of pile up neatly platform, and the top fixedly connected with of gravity piece has a set of bracing piece, and the bottom of bracing piece is fixed at the interior bottom of box, the upside fixed mounting of fixing base has a set of rotating electrical machines, and the upside of rotating electrical machines rotates and is connected with a set of cam, and the bottom fixed mounting that is located the connecting rod directly over the cam has a set of kicking block, when the rotating electrical machines drive cam is rotatory.
As a further scheme of the invention: the left end part of the rotating shaft is fixedly provided with a bulge with a conical structure for guiding and crushing the straw input through the crushing cavity to the cutting edge of the crushing cutter.
As a further scheme of the invention: the rotating plate is positioned at the lower side of the bottom of the blanking channel, and the rear end of the rotating rod is rotatably connected with a group of swing motors fixed on the rear side wall of the stacking platform.
As a further scheme of the invention: the bottom of the pushing plate is consistent with the top of the stacking platform, so that the straw formed on the stacking platform can be pushed leftwards and moved out conveniently.
As a further scheme of the invention: the top fixed mounting of bracing piece has a set of limiting plate that prevents the connecting rod from droing from the bracing piece upside, is located the cover on the bracing piece between limiting plate and the connecting rod and is equipped with a set of spring for slow down the impact of connecting rod to the limiting plate.
As a still further scheme of the invention: the left side wall of unloading passageway is provided with a set of inside straw of unloading passageway and carries out the moist atomizer of water spray, and the outside of atomizer has the water tank of fixing top in the box through water pipe intercommunication, carries out appropriate moist through carrying out the straw to pile up neatly, is convenient for improve the compactness when the pile up neatly, improves fashioned speed and stability.
Compared with the prior art, the invention has the beneficial effects that: the straw is input to the stacking platform after being crushed, then is extruded forwards and backwards through the extrusion plates on the front side and the rear side, and the upper side of the straw is extruded by the gravity block circularly lifted and lowered on the upper side, so that the straw is conveniently and quickly molded, and the problem that the straw cannot be quickly collected and processed after being crushed is solved;
the rotatable rotating plate is arranged on the left side of the stacking table, the pushing plate with a moving function is arranged on the right side of the stacking table, and the output belt connected with the discharge port is arranged on the left side of the stacking table, so that molded straws can be automatically and rapidly output outwards conveniently, and the automation degree of the overall operation of the device is improved;
the atomizing spray head capable of wetting the crushed straw in the blanking channel is arranged in the blanking channel, so that the straw forming speed and stability on the stacking platform are facilitated;
the invention has the advantages that: automatic operation, fast speed, high working efficiency and good stability of straw forming.
Drawings
Fig. 1 is an external three-dimensional structure schematic diagram of an automatic agricultural grain straw smashing and stacking device.
Fig. 2 is a schematic diagram of a front view internal structure of the automatic agricultural grain straw smashing and stacking device.
Fig. 3 is a schematic view of the overlooking internal structure of a stacking groove in the automatic agricultural grain straw smashing and stacking device.
Wherein: the automatic feeding device comprises a box body 10, a discharging hole 11, a crushing cavity 12, a feeding channel 13, a discharging hole 14, a crushing cutter 15, a crushing motor 16, a discharging channel 17, an output belt 18, a supporting rod 19, a cam 20, a rotating motor 21, a top block 22, a gravity block 23, a stacking table 24, a rotating plate 25, a pushing plate 26, a first hydraulic cylinder 27, a squeezing plate 28, a second hydraulic cylinder 29, a hydraulic rod 30, a water tank 31, a water pipe 32 and an atomizing nozzle 33.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Example one
Referring to fig. 1-3, an automatic agricultural grain straw smashing and stacking device comprises a box body 10, a discharge hole 11, a smashing cavity 12, a feeding channel 13 and a smashing motor 16; box 10 sets up to the rectangle structure, rectangle discharge gate 11 has been seted up to the left side wall lower part of box 10, the top intermediate position fixed mounting of box 10 has a set of crushing chamber 12, the outside intercommunication in inside left side of crushing chamber 12 has feedstock channel 13 that is used for the straw input, the inside right side of crushing chamber 12 is seted up downwards and is used for the feed opening 14 with the straw after smashing of carrying downwards, be provided with a set of horizontal axis of rotation directly over feed opening 14, fixed mounting has two sets of crushing sword 15 side by side about in the axis of rotation, the right-hand member of axis of rotation rotates and is connected with and fixes the inside crushing motor 16 in crushing chamber 12 right side wall, through starting two sets of crushing sword 15 of crushing motor 16 drive and rotating, thereby smash the straw of crushing chamber 12 inside. The left end of the rotating shaft is fixedly provided with a bulge with a conical structure for guiding and crushing the straws input through the crushing cavity 12 to the blade of the crushing knife 15. The bottom of the feed opening 14 is communicated with a feed channel 17 arranged at the top in the box body 10, a group of stacking tables 24 are arranged in the box body 10 under the feed opening 14, the bottom end of the feed channel 17 extends to the upper portion of the left side wall of the stacking tables 24, and crushed straws can be conveniently input from the upper portion of the left side of the stacking tables 24 through the feed channel 17. The bottom of the stacking platform 24 is fixed at the inner bottom of the box 10 through a plurality of groups of uniformly distributed columns, the left side of the top of the stacking platform 24 is rotatably connected with a group of rotating plates 25 through rotating rods, the rotating plates 25 are positioned at the lower side of the bottom of the blanking channel 17, the rear end of the rotating rods is rotatably connected with a group of swing motors fixed on the rear side wall of the stacking platform 24, a group of output belts 18 with the same height as the outer bottom of the stacking platform 24 are arranged at the left side of the stacking platform 24, the left ends of the output belts 18 are connected to the discharge port 11, when the rotating plates 25 swing leftwards to be horizontal, the tail ends of the rotating plates 25 are arranged at the upper side of the output belts 18, a group of fixed seats is fixedly installed at the right side of the stacking platform 24, a group of pushing plates 26 is movably connected to the left side inside the fixed seats, the middle part of the right side wall, the bottom of the pushing plate 26 is consistent with the top of the stacking table 24, so that straws molded on the stacking table 24 can be pushed leftwards to move out conveniently. Two groups of extrusion plates 28 are symmetrically and movably connected to the front side and the rear side of the top of the stacking table 24, the outer side faces of the extrusion plates 28 are connected with second hydraulic cylinders 29 fixed to the front side wall and the rear side wall of the stacking table 24 through hydraulic rods 30, the second hydraulic cylinders 29 are started to drive the extrusion plates 28 to move back and forth, and then crushed straws input to the stacking table 24 are subjected to extrusion forming. The utility model discloses a box 10, including box body 10, the pile up neatly platform 24, the top fixedly connected with of gravity piece 23 has a set of L type structure that extends right, the upside right-hand member of connecting rod is vertical to be passed and to have a set of bracing piece 19, the bottom of bracing piece 19 is fixed at the interior bottom of box 10, the top fixed mounting of bracing piece 19 has a set of limiting plate that prevents the connecting rod from coming off from the 19 upside of bracing piece, the bracing piece 19 that is located between limiting plate and the connecting rod goes up the cover and is equipped with a set of spring for slow down the impact of connecting rod to the limiting plate. The upside fixed mounting of fixing base has a set of rotating electrical machines 21, and the upside of rotating electrical machines 21 rotates and is connected with a set of cam 20, and the bottom fixed mounting that is located the connecting rod directly over cam 20 has a set of kicking block 22, when rotating electrical machines 21 drive cam 20 rotatory, through cam 20 and kicking block 22 contact each other to intermittent type nature jack-up gravity piece 23.
The working principle of the invention is as follows: firstly, straws to be treated are placed in a crushing cavity 12 through a feeding channel 13, then a crushing motor 16 is started to drive a crushing cutter 15 to crush the straws, the crushed straws are input to a stacking table 24 along a blanking channel 17 through a blanking port 14, then a top gravity block 23 is continuously rotated to drive a cam 20 to move upwards by starting a rotating motor 21 to operate, the gravity block 23 is driven to carry out gravity extrusion on the straws input to the stacking table 24 in a circulating reciprocating manner by utilizing the interval between the cam 20 and the gravity block 23, then the straws are matched with an extrusion plate 28, so that the crushed straws input to the stacking table 24 are stacked, after the straws are formed, the rotating plate 25 is rotated to be horizontal, the straws on the stacking table 24 are pushed to move leftwards to an output belt 18 through a first hydraulic cylinder 27 and then are output outwards through a discharge port 11 through the output belt 18, the process is circulated, so that continuous automatic crushing and stacking treatment is carried out on the straws.
Example two
On the basis of the first embodiment, the left side wall of the blanking channel 17 is provided with a group of atomizing nozzles 33 which spray water to wet straws in the blanking channel 17, the outer sides of the atomizing nozzles 33 are communicated with a water tank 31 fixed at the inner top of the box body 10 through a water pipe 32, and the straws to be piled are properly wetted, so that the compactness during piling is improved, and the forming speed and stability are improved.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims (7)

1. An automatic agricultural grain straw smashing and stacking device comprises a box body (10), a discharge hole (11), a smashing cavity (12), a feeding channel (13) and a smashing motor (16); the straw crushing device is characterized in that a feed opening (14) used for downwards conveying crushed straws is downwards formed in the middle of the top of the crushing cavity (12), a group of transverse rotating shafts are arranged right above the feed opening (14), two groups of crushing cutters (15) which are arranged side by side left and right are fixedly arranged on the rotating shafts, a crushing motor (16) fixed inside the right side wall of the crushing cavity (12) is rotatably connected to the right end of the rotating shafts, a feed passage (17) arranged at the top in the box body (10) is communicated with the bottom of the feed opening (14), a group of stacking platforms (24) are arranged inside the box body (10) positioned right below the feed opening (14), the bottom end of the blanking channel (17) extends to the upper portion of the left side wall of the stacking platform (24), the bottom of the stacking platform (24) is fixed at the inner bottom of the box body (10) through a plurality of groups of uniformly distributed columns, the left side of the top of the stacking platform (24) is rotatably connected with a group of rotating plates (25) through rotating rods, a group of output belts (18) with the same height as the outer bottom of the stacking platform (24) is arranged on the left side of the stacking platform (24), the left end of each output belt (18) is connected onto the discharge hole (11), a group of fixing seats are fixedly installed on the right side of the stacking platform (24), a group of pushing plates (26) are movably connected to the outer left side of the inner part of each fixing seat, the middle portion of the right side wall of each pushing plate (26) is connected with a group of first hydraulic cylinders (27) fixed on the right side of the inner part of each fixing seat through hydraulic rods (30) right, the lateral surface of stripper plate (28) is connected with through hydraulic stem (30) and fixes second hydraulic cylinder (29) on lateral wall around pile up neatly platform (24), pile up neatly platform (24) be provided with just in the time a set of gravity piece (23) that can move to pile up neatly platform (24) inboard, the top fixedly connected with of gravity piece (23) a set of L type structure that extends right the connecting rod that extends, the vertical the passing of upside right-hand member of connecting rod has a set of bracing piece (19), the bottom of bracing piece (19) is fixed at the interior bottom of box (10), the upside fixed mounting of fixing base has a set of rotating electrical machines (21), the upside of rotating electrical machines (21) is rotated and is connected with a set of cam (20), the bottom fixed mounting of the connecting rod that is located directly over cam (20).
2. The automated agricultural grain straw smashing and stacking device according to claim 1, wherein a protrusion in a conical structure is fixedly mounted at the left end of the rotating shaft.
3. An automated agricultural grain straw smashing and stacking device according to claim 2, wherein a rotating plate (25) is located on the lower side of the bottom of the blanking channel (17), and a group of swing motors fixed on the rear side wall of the stacking platform (24) are rotatably connected to the rear end of the rotating rod.
4. An automated agricultural cereal straw smashing and stacking device according to claim 3, wherein the bottom of the pushing plate (26) is coincident with the top of the stacking table (24).
5. The automatic agricultural grain straw smashing and stacking device according to claim 4, wherein a group of limiting plates for preventing the connecting rods from falling off from the upper side of the supporting rods (19) are fixedly mounted at the tops of the supporting rods (19).
6. The automatic agricultural grain straw smashing and stacking device according to claim 5, wherein a group of springs are sleeved on the supporting rod (19) between the limiting plate and the connecting rod.
7. The automatic agricultural grain straw smashing and stacking device according to any one of claims 1 to 6, wherein a group of atomizing nozzles (33) for spraying water to straw inside the feeding channel (17) for moistening is arranged on the left side wall of the feeding channel (17), and the outer sides of the atomizing nozzles (33) are communicated with a water tank (31) fixed to the inner top of the box body (10) through water pipes (32).
CN202010686513.8A 2020-07-16 2020-07-16 Automatic agricultural grain straw smashing and stacking device Withdrawn CN111842423A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010686513.8A CN111842423A (en) 2020-07-16 2020-07-16 Automatic agricultural grain straw smashing and stacking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010686513.8A CN111842423A (en) 2020-07-16 2020-07-16 Automatic agricultural grain straw smashing and stacking device

Publications (1)

Publication Number Publication Date
CN111842423A true CN111842423A (en) 2020-10-30

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Application Number Title Priority Date Filing Date
CN202010686513.8A Withdrawn CN111842423A (en) 2020-07-16 2020-07-16 Automatic agricultural grain straw smashing and stacking device

Country Status (1)

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CN (1) CN111842423A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113385522A (en) * 2021-06-11 2021-09-14 袁景环 Recyclable garbage crushing and compressing device
CN116374633A (en) * 2023-04-06 2023-07-04 衡阳凯新特种材料科技有限公司 Storage device for silicon nitride powder processing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113385522A (en) * 2021-06-11 2021-09-14 袁景环 Recyclable garbage crushing and compressing device
CN116374633A (en) * 2023-04-06 2023-07-04 衡阳凯新特种材料科技有限公司 Storage device for silicon nitride powder processing
CN116374633B (en) * 2023-04-06 2024-02-09 衡阳凯新特种材料科技有限公司 Storage device for silicon nitride powder processing

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