CN108927331B - Seed screening installation for agricultural production - Google Patents

Seed screening installation for agricultural production Download PDF

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Publication number
CN108927331B
CN108927331B CN201810761805.6A CN201810761805A CN108927331B CN 108927331 B CN108927331 B CN 108927331B CN 201810761805 A CN201810761805 A CN 201810761805A CN 108927331 B CN108927331 B CN 108927331B
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China
Prior art keywords
collecting frame
fixedly connected
separating cylinder
baffle
plate
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CN201810761805.6A
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Chinese (zh)
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CN108927331A (en
Inventor
宦然
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Minle Aoxing Agricultural Technology Co ltd
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Gansu Hengyu Huawei Biotechnology Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B7/00Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/08Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
    • B07B7/083Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03BSEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B7/00Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage

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  • Pretreatment Of Seeds And Plants (AREA)

Abstract

The invention relates to seed screening equipment, in particular to seed screening equipment for agricultural production. The invention aims to provide seed screening equipment for agricultural production, which can improve the quality of seeds by multi-stage screening. Seed screening equipment for agricultural production comprises a bottom plate, a first collecting frame, a second collecting frame, a supporting frame, an annular sliding rail, a sliding block, a separating cylinder, a screen cylinder, an outer gear ring, a motor, a gear, a first baffle, a second baffle, a first slot, a guide hole, a first elastic piece, a first inserted bar guide block, a second elastic piece and a first inserted bar; the annular slide rail is fixedly connected to the top of the bottom plate through a support frame. The invention achieves the effect of improving the seed quality by multi-stage screening.

Description

Seed screening installation for agricultural production
Technical Field
The invention relates to seed screening equipment, in particular to seed screening equipment for agricultural production.
Background
Agriculture is an industry for obtaining products by artificial cultivation by utilizing growth and development rules of animals and plants. Agriculture belongs to the first industry, and the science for researching agriculture is agriculture. The agricultural working object is living animals and plants, and the obtained products are the animals and plants. Agriculture is a fundamental industry for supporting national economic construction and development.
The requirement on the quality of seeds in agricultural production is high, and the better seeds can be used for planting the better crops, so the seeds in agricultural production need to be screened, and the seed screening equipment in the prior art has the defect of incomplete screening due to single screening mode.
In summary, there is a need to develop a seed screening apparatus for agricultural production, which can improve the quality of seeds by multi-stage screening, so as to overcome the disadvantages of the prior art.
Disclosure of Invention
The invention aims to overcome the defect that the seed screening equipment in the prior art has single screening mode and incomplete screening, and the technical problem to be solved by the invention is to provide the seed screening equipment for agricultural production, which can improve the seed quality by multi-stage screening.
The invention is achieved by the following specific technical means:
seed screening equipment for agricultural production comprises a bottom plate, a first collecting frame, a second collecting frame, a supporting frame, an annular sliding rail, a sliding block, a separating cylinder, a screen cylinder, an outer gear ring, a motor, a gear, a first baffle, a second baffle, a first slot, a guide hole, a first elastic piece, a first inserted bar guide block, a second elastic piece and a first inserted bar; the annular slide rail is fixedly connected to the top of the bottom plate through a support frame, and the separating cylinder is connected with the annular slide rail in a sliding manner through a sliding block; the outer gear ring is fixedly connected to the top of the outer side wall of the separating cylinder, and the motor is fixedly connected to the top of the annular sliding rail; the gear is in transmission connection with the output end of the motor and is meshed with the outer gear ring; the first baffle is hinged to the bottom of one side of the separating cylinder and used for shielding a discharge hole formed in the side wall of the separating cylinder; the bottom of the first baffle is provided with a first slot, and the bottom of the separating cylinder is provided with a guide hole communicated with the first slot; the first inserted bar is connected with the bottom of the separating cylinder through a first elastic piece and penetrates through the guide hole to be in inserted fit with the first slot; the screen cylinder is fixedly connected to the separating cylinder and penetrates through the bottom of the separating cylinder; the second baffle is hinged to the bottom of the screen drum and used for shielding a discharge hole formed in the bottom of the screen drum; the guide block is fixedly connected to one side of the bottom of the separating cylinder, the second inserted link is connected with the guide block through a second elastic piece, and the second inserted link penetrates through the guide hole to be inserted and matched with a second slot formed in the end part of the second baffle; the first collecting frame is arranged at the top of the bottom plate and is positioned below the first baffle; the second collecting frame is placed at the top of the bottom plate and is positioned below the second baffle;
the water outlet device also comprises a first sieve plate, a scraper, a first water outlet pipe, a water valve, a third collecting frame, a second sieve plate and a second water outlet pipe; the first sieve plate is fixedly connected to the lower part in the second collecting frame; sliding chutes are formed in the front side and the rear side of the inner wall of the second collecting frame, and the front end and the rear end of the scraping plate are connected with the sliding chutes in a sliding mode; a water outlet is formed in the top of one side wall of the second collecting frame, and the third collecting frame is fixedly connected to one side, close to the water outlet, of the outer wall of the second collecting frame and is positioned below the water outlet; the second sieve plate is fixedly connected to the lower part in the third collecting frame; the first water outlet pipe is fixedly connected to the bottom of the side wall of the second collecting frame and is positioned below the first sieve plate; the water valve is arranged on the first water outlet pipe; the second water outlet pipe is fixedly connected to the bottom of the third collecting frame and is communicated with the first water outlet pipe;
the device also comprises a cover plate, a screw and a turntable; the cover plate is hinged to the top of the separating cylinder and used for shielding a feeding hole formed in the top of the separating cylinder; a second threaded hole is formed in one side of the cover plate, the screw is in threaded connection with the second threaded hole, the top end of the screw is fixedly connected with the rotary table, and the bottom end of the screw penetrates through the second threaded hole and is in threaded connection with a first threaded hole formed in the top of the separating cylinder;
also comprises a handle; the handle is fixedly connected to the top of the scraper;
the device also comprises a third sieve plate; the third sieve plate is fixedly connected in the second collecting frame and is positioned above the first sieve plate;
the bottom of the separating cylinder inclines towards the direction of the first baffle.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, seeds are poured into the screen drum, and the screen drum is driven to rotate by the operation of the motor, so that the seeds are separated under the action of centrifugal force, the unqualified seeds with small particle size are thrown out of the screen drum, and the qualified seeds are left out of the screen drum, thereby achieving the effect of screening the seeds. After the seeds with qualified particle sizes are collected, the unqualified seeds mixed with the empty shells can be removed again in a water separation mode, and the screening effect is improved.
Drawings
Fig. 1 is a first front view structure diagram of the present invention.
FIG. 2 is an enlarged view of A of FIG. 1 according to the present invention.
FIG. 3 is an enlarged view of B in FIG. 1 according to the present invention.
Fig. 4 is a second front view structure diagram of the present invention.
Fig. 5 is a third schematic view of the present invention.
FIG. 6 is an enlarged view of C in FIG. 5 according to the present invention.
Fig. 7 is a schematic diagram of a fourth front view structure according to the present invention.
Fig. 8 is a schematic view of a fifth front view structure according to the present invention.
The labels in the figures are: 1-a bottom plate, 2-a first collecting frame, 3-a second collecting frame, 4-a support frame, 5-a ring-shaped sliding rail, 6-a sliding block, 7-a separating cylinder, 8-a screen cylinder, 9-an outer gear ring, 10-a motor, 11-a gear, 12-a first baffle, 13-a second baffle, 14-a first slot, 15-a guide hole, 16-a first elastic piece, 17-a first inserted rod, 21-a second slot, 22-a guide block, 23-a second elastic piece, 24-a second inserted rod, 25-a first screen plate, 26-a sliding groove, 27-a scraping plate, 28-a first water outlet pipe, 29-a water valve, 30-a third collecting frame, 31-a second screen plate, 32-a water outlet, 33-a second water outlet pipe and 34-a cover plate, 35-first threaded hole, 36-second threaded hole, 37-screw rod, 38-rotary disc, 39-handle and 40-third sieve plate.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
examples
1-8, the seed screening equipment for agricultural production comprises a bottom plate 1, a first collecting frame 2, a second collecting frame 3, a supporting frame 4, an annular slide rail 5, a slide block 6, a separating cylinder 7, a screen cylinder 8, an outer gear ring 9, a motor 10, a gear 11, a first baffle 12, a second baffle 13, a first slot 14, a guide hole 15, a first elastic piece 16, a first inserted link 17, a guide block 22, a second elastic piece 23 and a first inserted link 17; the annular slide rail 5 is fixedly connected to the top of the bottom plate 1 through a support frame 4, and the separating cylinder 7 is connected with the annular slide rail 5 in a sliding manner through a slide block 6; the outer gear ring 9 is fixedly connected to the top of the outer side wall of the separating cylinder 7, and the motor 10 is fixedly connected to the top of the annular slide rail 5; the gear 11 is in transmission connection with the output end of the motor 10 and is meshed with the outer gear ring 9; the first baffle plate 12 is hinged to the bottom of one side of the separating cylinder 7 and used for shielding a discharge hole formed in the side wall of the separating cylinder 7; the bottom of the first baffle plate 12 is provided with a first slot 14, and the bottom of the separating cylinder 7 is provided with a guide hole 15 communicated with the first slot 14; the first inserted link 17 is connected with the bottom of the separating cylinder 7 through a first elastic piece 16, and the first inserted link 17 penetrates through the guide hole 15 and is in inserted fit with the first slot 14; the screen cylinder 8 is fixedly connected to the separation cylinder 7 and penetrates through the bottom of the separation cylinder 7; the second baffle 13 is hinged at the bottom of the screen drum 8 and is used for shielding a discharge hole formed at the bottom of the screen drum; the guide block 22 is fixedly connected to one side of the bottom of the separating cylinder 7, the second inserted link 24 is connected with the guide block 22 through the second elastic piece 23, and the second inserted link 24 penetrates through the guide hole 15 to be in inserted fit with the second slot 21 formed in the end part of the second baffle 13; the first collecting frame 2 is placed on the top of the bottom plate 1 and is positioned below the first baffle plate 12; the second collecting frame 3 is placed on the top of the bottom plate 1 and is located below the second baffle 13.
When seeds need to be screened, firstly, the seeds are poured into the screen cylinder 8, then the motor 10 is started to operate, the motor 10 drives the gear 11 to rotate, the gear 11 is meshed with the outer gear ring 9, and the separating cylinder 7 is in sliding connection with the annular slide rail 5 through the slide block 6, so that the separating cylinder 7 rotates, unqualified seeds with small particle size in the screen cylinder 8 are thrown out of the screen cylinder 8 under the centrifugal action, qualified seeds with large particle size are left in the screen cylinder 8, and the effect of rapidly screening the seeds can be achieved; after the seeds are screened out of the outer wall, the motor 10 is controlled to stop running.
When unqualified seeds with small particle size in the separating cylinder 7 need to be taken out after the seeds are screened, the first inserting rod 17 is pulled to move downwards through the first elastic piece 16 to be separated from the first slot 14, and the first baffle 12 is not clamped, so that the first baffle 12 can be rotated clockwise, the discharge hole of the separating cylinder 7 is opened, and then the unqualified seeds flow into the first collecting frame 2 through the discharge hole; after the collection is finished, the first baffle 12 is rotated to the initial position, the first inserting rod 17 is inserted into the first slot 14, and the first inserting rod 17 cannot fall off under the action of the first elastic piece 16, so that the effect of fixing the first baffle 12 is achieved.
When qualified seeds in the screen cylinder 8 need to be removed, the second elastic piece 23 pulls the second inserting rod 24 to move towards the direction far away from the second baffle 13, so that the second inserting rod is separated from the second slot 21, the second baffle 13 is not clamped, the second baffle 13 rotates under the action of gravity, the discharge hole of the screen cylinder 8 is opened, and then the qualified seeds flow into the second collecting frame 3 through the discharge hole; after the collection is finished, the second baffle 13 is rotated to the initial position, the second inserting rod 24 is inserted into the second slot 21, and the second inserting rod 24 cannot fall off under the action of the second elastic piece 23, so that the effect of fixing the second baffle 13 is achieved.
As shown in fig. 4, the seed screening apparatus mechanism for agricultural production further includes a first sieve plate 25, a scraper 27, a first water outlet pipe 28, a water valve 29, a third collecting frame 30, a second sieve plate 31, and a second water outlet pipe 33; the first sieve plate 25 is fixedly connected with the inner lower part of the second collecting frame 3; sliding grooves 26 are formed in the front and rear top parts of the inner wall of the second collecting frame 3, and the front and rear ends of the scraping plate 27 are connected with the sliding grooves 26 in a sliding mode; a water outlet 32 is formed in the top of one side wall of the second collecting frame 3, and the third collecting frame 30 is fixedly connected to one side, close to the water outlet 32, of the outer wall of the second collecting frame 3 and is positioned below the water outlet 32; the second sieve plate 31 is fixedly connected to the inner lower part of the third collecting frame 30; the first water outlet pipe 28 is fixedly connected to the bottom of the side wall of the second collecting frame 3 and is positioned below the first sieve plate 25; a water valve 29 is mounted on the first water outlet pipe 28; the second water outlet pipe 33 is fixedly connected to the bottom of the third collecting frame 30 and is communicated with the first water outlet pipe 28.
After qualified seed of particle diameter flowed into second collection frame 3, because the seed of some ghost, because the particle diameter is enough big and not screened, so toward second collection frame 3 water injection this moment, the unqualified seed of ghost floats at the surface of water owing to the buoyancy that receives water, when the horizontal plane surpassed delivery port 32, along with rivers through delivery port 32 fall into third collection frame 30 in, and fall on second sieve 31, water is discharged through second outlet pipe 33, at this in-process, accessible spout 26 slip scraper blade 27, further scrape out delivery port 32 with the levitated unqualified seed in upper strata, further improved screening effect. After the screening is completed, the water valve 29 is opened, the water in the second collection frame 3 is discharged through the first water outlet pipe 28, and the seeds are left in the second collection frame 3 due to the effect of the first sieve plate 25.
As shown in fig. 5 and 6, the seed screening apparatus mechanism for agricultural production further includes a cover plate 34, a screw 37 and a turntable 38; the cover plate 34 is hinged to the top of the separating cylinder 7 and used for shielding a feeding hole formed in the top of the separating cylinder 7; one side of the cover plate 34 is provided with a second threaded hole 36, a screw 37 is in threaded connection with the second threaded hole 36, the top end of the screw is fixedly connected with the rotary disc 38, and the bottom end of the screw penetrates through the second threaded hole 36 and is in threaded connection with a first threaded hole 35 formed in the top of the separating cylinder 7.
When seeds need to be screened, the cover plate 34 is modified, and the turnplate 38 is screwed to drive the screw rod 37 to rotate, so that the screw rod 37 is screwed into the first threaded hole 35, and the cover plate 34 is fixed to prevent the damage caused by swinging in the rotating process of the separating cylinder 7; the cover plate 34 covers the top of the separating cylinder 7 to prevent seeds from being thrown out of the separating cylinder 7, so that seed loss is avoided.
As shown in fig. 7, the seed screening apparatus mechanism for agricultural production further includes a handle 39; a handle 39 is secured to the top of the blade 27.
When unqualified seeds on the water surface need to be scraped by the scraper 27, the scraper 27 can be slid more conveniently and more easily through the handle 39.
As shown in fig. 8, the seed screening apparatus mechanism for agricultural production further includes a third screen deck 40; the third screen plate 40 is fixed in the second collecting frame 3 and is located above the first screen plate 25.
After falling into second collection frame 3 when the qualified seed of particle size, at first fall on third sieve 40, because the mesh diameter ratio of third sieve 40 is bigger than first sieve 25, so sieve the seed once more, improved the screening effect.
Wherein, the bottom of the separating cylinder 7 inclines towards the direction of the first baffle plate 12; the seeds can flow out from the separating cylinder 7 more conveniently, and the collection is convenient.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention to achieve the above technical effects.

Claims (1)

1. Seed screening equipment for agricultural production is characterized by comprising a base plate (1), a first collecting frame (2), a second collecting frame (3), a support frame (4), an annular slide rail (5), a slide block (6), a separating cylinder (7), a screen cylinder (8), an outer gear ring (9), a motor (10), a gear (11), a first baffle (12), a second baffle (13), a first slot (14), a guide hole (15), a first elastic piece (16), a first inserted rod (17), a guide block (22), a second elastic piece (23) and a first inserted rod (17); the annular slide rail (5) is fixedly connected to the top of the bottom plate (1) through a support frame (4), and the separating cylinder (7) is in sliding connection with the annular slide rail (5) through a slide block (6); the outer gear ring (9) is fixedly connected to the top of the outer side wall of the separating cylinder (7), and the motor (10) is fixedly connected to the top of the annular sliding rail (5); the gear (11) is in transmission connection with the output end of the motor (10) and is meshed with the outer gear ring (9); the first baffle (12) is hinged to the bottom of one side of the separating cylinder (7) and is used for shielding a discharge hole formed in the side wall of the separating cylinder (7); the bottom of the first baffle (12) is provided with a first slot (14), and the bottom of the separating cylinder (7) is provided with a guide hole (15) communicated with the first slot (14); the first inserted rod (17) is connected with the bottom of the separating cylinder (7) through a first elastic piece (16), and the first inserted rod (17) penetrates through the guide hole (15) to be in plug-in fit with the first slot (14); the screen cylinder (8) is fixedly connected to the separating cylinder (7) and penetrates through the bottom of the separating cylinder (7); the second baffle (13) is hinged at the bottom of the screen drum (8) and is used for shielding a discharge hole formed at the bottom of the second baffle; the guide block (22) is fixedly connected to one side of the bottom of the separating cylinder (7), the second inserted rod (24) is connected with the guide block (22) through the second elastic piece (23), and the second inserted rod (24) penetrates through the guide hole (15) to be in inserted fit with the second inserting groove (21) formed in the end part of the second baffle (13); the first collecting frame (2) is placed at the top of the bottom plate (1) and is positioned below the first baffle plate (12); the second collecting frame (3) is placed at the top of the bottom plate (1) and is positioned below the second baffle plate (13);
the device also comprises a first sieve plate (25), a scraper plate (27), a first water outlet pipe (28), a water valve (29), a third collecting frame (30), a second sieve plate (31) and a second water outlet pipe (33); the first sieve plate (25) is fixedly connected with the inner lower part of the second collecting frame (3); sliding chutes (26) are formed in the front side and the rear side of the top of the inner wall of the second collecting frame (3), and the front end and the rear end of the scraper plate (27) are connected with the sliding chutes (26) in a sliding mode; a water outlet (32) is formed in the top of one side wall of the second collecting frame (3), and a third collecting frame (30) is fixedly connected to one side, close to the water outlet (32), of the outer wall of the second collecting frame (3) and is positioned below the water outlet (32); the second sieve plate (31) is fixedly connected with the inner lower part of the third collecting frame (30); the first water outlet pipe (28) is fixedly connected to the bottom of the side wall of the second collecting frame (3) and is positioned below the first sieve plate (25); the water valve (29) is arranged on the first water outlet pipe (28); the second water outlet pipe (33) is fixedly connected to the bottom of the third collecting frame (30) and is communicated with the first water outlet pipe (28);
the device also comprises a cover plate (34), a screw rod (37) and a turntable (38); the cover plate (34) is hinged to the top of the separating cylinder (7) and used for shielding a feeding hole formed in the top of the separating cylinder (7); a second threaded hole (36) is formed in one side of the cover plate (34), the screw rod (37) is in threaded connection with the second threaded hole (36), the top end of the screw rod is fixedly connected with the rotary table (38), and the bottom end of the screw rod penetrates through the second threaded hole (36) to be in threaded connection with a first threaded hole (35) formed in the top of the separating cylinder (7);
also comprises a handle (39); the handle (39) is fixedly connected with the top of the scraper (27);
also comprises a third sieve plate (40); the third sieve plate (40) is fixedly connected in the second collecting frame (3) and is positioned above the first sieve plate (25);
the bottom of the separating cylinder (7) inclines towards the direction of the first baffle plate (12).
CN201810761805.6A 2018-07-12 2018-07-12 Seed screening installation for agricultural production Active CN108927331B (en)

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CN201810761805.6A CN108927331B (en) 2018-07-12 2018-07-12 Seed screening installation for agricultural production

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Application Number Priority Date Filing Date Title
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CN108927331B true CN108927331B (en) 2021-06-25

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110038789A (en) * 2019-05-29 2019-07-23 范甬挺 A kind of agricultural seed screening plant
CN111299142A (en) * 2020-01-03 2020-06-19 李燕芳 Seed sieving mechanism
CN115069406A (en) * 2022-06-01 2022-09-20 杭州中泽生物科技有限公司 Rice seed screening system and screening method

Citations (9)

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Publication number Priority date Publication date Assignee Title
US6726026B1 (en) * 2001-08-20 2004-04-27 Lawrence Edwin Wilkerson Seed husk separator
CN205518243U (en) * 2016-03-31 2016-08-31 张军 Novel food gets rid of oil machine
CN206042743U (en) * 2016-06-28 2017-03-29 白丽玉 A kind of multi-functional seed soaking equipment
CN106914414A (en) * 2017-05-04 2017-07-04 冷国强 A kind of petroleum coke high throughput screening devices
CN107486396A (en) * 2017-10-11 2017-12-19 苏州和必尔斯电子科技有限公司 A kind of agriculture cereal rapid impurity removal device
CN107626568A (en) * 2017-09-25 2018-01-26 深圳市晟腾企业管理有限公司 One kind building sandy soil centrifugal sifting machine
CN207014616U (en) * 2017-07-15 2018-02-16 东莞市乘风精密机械有限公司 A kind of energy saving and environment friendly plastics recovery milling apparatus
CN207258470U (en) * 2017-07-27 2018-04-20 蒋花 A kind of municipal garbage bucket pressurizing unit
CN108035629A (en) * 2018-01-09 2018-05-15 安徽三九农业装备科技股份有限公司 The door lock assembly of tea twisting machine blanking door

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6726026B1 (en) * 2001-08-20 2004-04-27 Lawrence Edwin Wilkerson Seed husk separator
CN205518243U (en) * 2016-03-31 2016-08-31 张军 Novel food gets rid of oil machine
CN206042743U (en) * 2016-06-28 2017-03-29 白丽玉 A kind of multi-functional seed soaking equipment
CN106914414A (en) * 2017-05-04 2017-07-04 冷国强 A kind of petroleum coke high throughput screening devices
CN207014616U (en) * 2017-07-15 2018-02-16 东莞市乘风精密机械有限公司 A kind of energy saving and environment friendly plastics recovery milling apparatus
CN207258470U (en) * 2017-07-27 2018-04-20 蒋花 A kind of municipal garbage bucket pressurizing unit
CN107626568A (en) * 2017-09-25 2018-01-26 深圳市晟腾企业管理有限公司 One kind building sandy soil centrifugal sifting machine
CN107486396A (en) * 2017-10-11 2017-12-19 苏州和必尔斯电子科技有限公司 A kind of agriculture cereal rapid impurity removal device
CN108035629A (en) * 2018-01-09 2018-05-15 安徽三九农业装备科技股份有限公司 The door lock assembly of tea twisting machine blanking door

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