CN109513606A - A kind of layer-stepping sandstone-screening machine - Google Patents
A kind of layer-stepping sandstone-screening machine Download PDFInfo
- Publication number
- CN109513606A CN109513606A CN201910029021.9A CN201910029021A CN109513606A CN 109513606 A CN109513606 A CN 109513606A CN 201910029021 A CN201910029021 A CN 201910029021A CN 109513606 A CN109513606 A CN 109513606A
- Authority
- CN
- China
- Prior art keywords
- spring
- pin
- sink block
- sliding rail
- sandstone
- 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
Links
- 238000012216 screening Methods 0.000 title claims abstract description 47
- 230000007246 mechanism Effects 0.000 claims abstract description 43
- 230000033001 locomotion Effects 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims description 7
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000001125 extrusion Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
- B07B1/30—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro within their own plane in or approximately in or transverse to the direction of conveyance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/469—Perforated sheet-like material
Abstract
A kind of layer-stepping sandstone-screening machine includes Rack Body, sorting mechanism, slider-crank mechanism, two spring pressing mechanisms；Driving motor is fixedly mounted on sink block, drives screening frame to move back and forth with slider-crank mechanism；First extruding spring is mounted between sliding rail front end and sink block, and the second extruding spring is mounted between sink block and screening frame, and third section squeezes spring and is mounted between support frame and sliding rail end；It squeezes spring and generates reverse extrusion power under the drive of slider-crank mechanism, so that quick relative movement between sink block and screening frame, realization carries out screening separation to sandstone.The present apparatus has many advantages, such as compact-sized, at low cost, easy to operate, can largely reduce labour, improve production efficiency.
Description
Technical field
The invention belongs to technical field of mechanical transmission, are related to a kind of layer-stepping sandstone-screening machine.
Background technique
With the fast development of today's society, people are continuous to being gradually increasing of requiring of good life and population size
Increase, a large amount of houses need to build, and sandstone is indispensable raw material when house is built, but because its size, shape are different, it is necessary to
Carry out the screening of sandstone.
In comparatively developed regions, often screened, separated using automating higher equipment, but its equipment price use compared with
Height, equipment volume are larger, not easy to repair；Therefore, the rural area people are when building house, due to the restriction of economic condition, often without
Large-scale sorting mechanism is rented in method purchase, frequently with sandstone separation is manually carried out, is taken considerable time, manpower.
Therefore, it is proposed to a kind of layer-stepping sandstone-screening machine, using slider-crank mechanism combination spring pressing mechanism conduct
Mediation member can fast implement the screening of sandstone, have many advantages, such as simple and compact for structure, at low cost, easy use.
Summary of the invention
The technical solution adopted in the present invention is as follows:
A kind of layer-stepping sandstone-screening machine, including Rack Body, sorting mechanism, slider-crank mechanism, spring pressing mechanism；Slide crank
Block mechanism is mounted on the right side sliding rail on Rack Body 1, and driving motor 13 is fixedly mounted on sink block 4 by motor cabinet 7；Sieve
It selects frame 3 to be fixedly mounted on support frame 2, is moved back and forth by slider-crank mechanism drive；Spring pressing mechanism is arranged symmetrically
In two sliding rails, cooperates the reciprocating movement of slider-crank mechanism to generate extruding force, be further driven to sink block 4 and screening frame 3
It does relatively reciprocating motion.
Sorting mechanism includes 4, two support frame 2, screening frame 3, sink block screws 15；Support frame 2 is symmetrical structure, each
Side is made of threaded hole 2-1, preceding pin 2-5, rear pin 2-2, sliding block 2-4, side pin 2-3；Screening frame 3 is solid by screw 15
Dingan County is on the threaded hole 2-1 of support frame 2；The sliding block 2-4 of support frame 2 slip in right sliding rail；Sink block 4 is symmetrical
Structure, every side are made of receiver board 4-1, sliding block 4-2, front guide post 4-3, rear guide post 4-5, two threaded hole 4-4, symmetrically
It is arranged in the two sides of 4 front end of sink block；Receiver board 4-1 has certain tilt angle, and the sandstone screened is facilitated to flow out；Driving
Motor 13 is fixedly mounted on sink block 4, moves with sink block 4.
Slider-crank mechanism includes 13, four motor cabinet 7, crank 8,9, two M8 bolts 12 of connecting rod, driving motor M6 spiral shells
Bolt 14；Motor cabinet 7 is made of threaded hole 7-1, threaded hole 7-2, a unthreaded hole 7-3, four motor installing holes；Wherein driving motor
13 are fixedly mounted on motor cabinet 7 in corresponding 4 motor installing holes by four M6 bolts 14；Crank 8 is connected by key
On the output shaft of driving motor 13；Connecting rod 9 is made of unthreaded hole 9-1, unthreaded hole 9-2 and the body of rod；Unthreaded hole 9-1 and crank 8 on connecting rod 9
On pin connection, unthreaded hole 9-2 connect with the side pin 2-3 of support frame 2.
Spring pressing mechanism includes that 1, two first segment of Rack Body squeezes 5, two second segments extruding 10, two, spring of spring
Third section squeezes spring 11；The upper right sliding rail of Rack Body 1 by front end pin 1-1, rear end pin 1-2, sliding slot 1-1, preceding notch 1-4,
Notch 1-5 is formed afterwards, and left sliding rail is identical as right sliding rail feature and is arranged symmetrically in 1 both lateral sides of Rack Body；First segment squeezes bullet
5 one end of spring is mounted on the front end pin 1-1 of the right sliding rail of Rack Body 1, and the other end is mounted on the front guide post 4-3 of sink block 4；
Second segment squeezes 10 one end of spring and is mounted on the rear guide post 4-5 of sink block 4, and the other end is mounted on the preceding pin of support frame 2
On 2-5；Third section squeezes 11 one end of spring and is mounted on the rear pin 2-2 of support frame 2, and the other end is mounted on the right cunning of Rack Body 1
On the rear end pin 1-2 of rail；Left sliding rail arranges identical spring arrangement on Rack Body 1.
The beneficial effects of the present invention are: a kind of layer-stepping sandstone-screening machine, using motor as driving source, using crank block
It is transmission mechanism with spring is squeezed, drives the reciprocating motion between sorting mechanism, screening function may be implemented.The present apparatus has knot
The advantages that structure is compact, simple, operation is easy and is low in cost, by adjusting screening frame hole body shapes and sizes, it can be achieved that right
The screening of different size sandstone.
Detailed description of the invention
A kind of overall structure figure of layer-stepping sandstone-screening machine of Fig. 1.
Rack Body structure chart in a kind of layer-stepping sandstone-screening machine of Fig. 2.
Reception mount structure figure in a kind of layer-stepping sandstone-screening machine of Fig. 3.
Support frame structure figure in a kind of layer-stepping sandstone-screening machine of Fig. 4.
Motor cabinet structure chart in a kind of layer-stepping sandstone-screening machine of Fig. 5.
Link mechanism figure in a kind of layer-stepping sandstone-screening machine of Fig. 6.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawing.
Such as Fig. 1, a kind of layer-stepping sandstone-screening machine includes Rack Body, sorting mechanism, slider-crank mechanism, spring extruder
Structure；Screening frame 3 is scheduled on support frame 2, is slid together by the drive of support frame 2；Slider-crank mechanism is arranged in the right side on Rack Body 1
On wood side-guide, crank 8 is driven to rotate by driving motor 13, and then support frame 2 is driven to move back and forth；The symmetrical cloth of spring pressing mechanism
It sets in the sliding rail of left and right, the reciprocating movement of slider-crank mechanism squeezes spring, is further driven to sink block 4 and screening frame 3 is opposite
Movement is, it can be achieved that screening function.
Such as Fig. 2 and Fig. 3, the right sliding rail on Rack Body 1 is by front end pin 1-1, rear end pin 1-2, sliding slot 1-1, preceding notch
1-4, rear notch 1-5 composition, left sliding rail is identical as right sliding rail feature and is arranged symmetrically in 1 other side of Rack Body；Sink block 4 is pair
Claim structure, right half part is by receiver board 4-1, sliding block 4-2, front guide post 4-3, rear guide post 4-5, four threaded hole 4-4 groups
At;Sliding block 4-2 on sink block 4 in the sliding rail on Rack Body 1, from spring arrangement generate extruding force drive sink block 4 toward
It is multiple mobile.
Such as Fig. 4, support frame 2 is symmetrical structure, and right half part is by threaded hole 2-1, preceding pin 2-5, rear pin 2-2, cunning
Row block 2-4, side pin 2-3 composition；Sliding block 2-4 is slided on the sliding rail of Rack Body 1；First segment squeezes spring 5 and is mounted on machine
Between the front end pin 1-1 of frame body 1 and the front guide post 4-3 of sink block 4, second segment squeezes spring 10 and is mounted on support frame 2
Preceding pin 2-5 and sink block 4 rear guide post 4-5 between, third section squeeze spring 11 be mounted on rear pin 2-2 and Rack Body
Between rear end pin 1-2 on 1；Spring arrangement is set to generate extruding force by the reciprocating movement of slider-crank mechanism, further band
Dynamic sink block 4 and screening frame 3 do relatively reciprocating motion.
Such as Fig. 5 and Fig. 6, motor cabinet 7 is made of threaded hole 7-1, threaded hole 7-2, unthreaded hole 7-3, four motor installing holes；Electricity
Base 7 is fixed on sink block 4 by threaded hole 7-1 and threaded hole 7-2, and driving motor 13 is mounted on motor cabinet 7, and driving is bent
Handle 3 rotates, and is further driven to the reciprocating motion of connecting rod 9；Connecting rod 9 is made of a unthreaded hole 9-1, a unthreaded hole 9-2 and the body of rod；Connecting rod
Unthreaded hole 9-1 on 9 is connect with the pin on crank 8；The unthreaded hole 9-2 connection of connecting rod 9 on the support frame is fixedly mounted in screening frame 3
On the side pin 2-3 of support frame, under the drive of connecting rod 9, screening frame 3 moves back and forth.
The course of work of the invention:
Driving motor 13 is fixed on sink block 4 by motor cabinet 7, and driving motor 13 drives crank 8 to rotate, connecting rod 9 and screening
Mechanism connection can drive sorting mechanism to realize and move back and forth；First extruding spring 5 is mounted between sliding rail front end and sink block 4,
Second squeezes between 10 sink block 4 of spring and screening frame 3, and third section squeezes spring and is mounted on support frame 2 and sliding rail end, in song
Generate extruding force under the drive of handle slide block mechanism so that quick relative movement between sink block 4 and screening frame 3, can be realized by
Material carries out screening separation.
Working principle of the present invention:
It is power source with driving motor 13, taking slider-crank mechanism is intermediate transmission mechanism, and screening frame 3 is driven to move back and forth；
Spring pressing mechanism is combined among slider-crank mechanism simultaneously so that the power that obtains of screening frame 3 by squeeze spring can be with
In back transfer to sink block 4, sink block 4 and the relatively rapid movement of screening frame 3 are realized.
Claims (4)
1. a kind of layer-stepping sandstone-screening machine, it is characterised in that: squeezed including Rack Body, sorting mechanism, slider-crank mechanism, spring
Press mechanism；Slider-crank mechanism is mounted on the sliding rail side on Rack Body (1), and driving motor (13) is fixed by motor cabinet (7)
On sink block (4)；Screening frame (3) is fixed on support frame (2), is moved back and forth by crank block drive；Spring squeezes
Mechanism is arranged symmetrically in two sliding slots, is cooperated the reciprocating movement of slider-crank mechanism to generate extruding force, is further driven to receive
Frame (4) and screening frame (3) relative motion.
2. a kind of layer-stepping sandstone-screening machine as described in claim 1, it is characterised in that: sorting mechanism include support frame (2),
Screening frame (3), sink block (4), two screws (15)；Support frame (2) be symmetrical structure, right half part by threaded hole (2-1),
Side pin (2-3), rear pin (2-2), sliding block (2-4), preceding pin (2-5) composition；Screening frame (3) is fixed by screw (15)
It is mounted on two threaded holes (2-1) of support frame (2)；The sliding block (2-4) of support frame (2) slip in right sliding rail；It connects
Receiving frame (4) is symmetrical structure, and right half part is by receiver board (4-1), sliding block (4-2), front guide post (4-3), rear guide post (4-
5), four threaded hole (4-4) compositions, are arranged symmetrically in the two sides of sink block (4) front end；Receiver board (4-1) inclines with certain
Rake angle facilitates the sandstone screened to flow out；Driving motor (13) is fixedly mounted on sink block (4), starts shipment with sink block (4) one
It is dynamic.
3. a kind of layer-stepping sandstone-screening machine as described in claim 1, it is characterised in that: slider-crank mechanism includes motor cabinet
(7), crank (8), connecting rod (9), two M8 bolts (12), driving motor (13), four M6 bolts (14)；Motor cabinet (7) is by spiral shell
Pit (7-1), threaded hole (7-2), a unthreaded hole (7-3), four motor installing hole compositions；Wherein driving motor (13) passes through four
A M6 bolt (14) is fixed on motor cabinet (7) in corresponding 4 motor installing holes；Motor cabinet (7) passes through two M8 bolts
(12) it is mounted on sink block (4)；Crank (8) is connected by key on the output shaft of driving motor (13)；Connecting rod (9) is by unthreaded hole
(9-1), unthreaded hole (9-2) and body of rod composition；Unthreaded hole (9-1) on connecting rod (9) is connect with the pin on crank (8), unthreaded hole (9-2)
It is connect with the side pin (2-3) of support frame (2).
4. a kind of layer-stepping sandstone-screening machine as described in claim 1, it is characterised in that: spring pressing mechanism includes Rack Body
(1), two first segments squeeze spring (5), two second segments squeeze spring (10), two third sections squeeze spring (11)；Rack
The right sliding rail of body (1) is by front end pin (1-1), rear end pin (1-2), sliding slot (1-1), preceding notch (1-4), rear notch (1-5)
Composition, left sliding rail is identical as right sliding rail feature and is arranged symmetrically in Rack Body (1) both lateral sides；First segment squeezes spring (5) one
End is mounted on the front end pin (1-1) of Rack Body (1) right sliding rail, and the other end is mounted on the front guide post (4-3) of sink block (4)
On；Second segment squeezes spring (10) one end and is mounted in the rear guide post (4-5) of sink block (4), and the other end is mounted on support frame
(2) on preceding pin (2-5)；Third section squeezes spring (11) one end and is mounted on the rear pin (2-2) of support frame (2), another
End is mounted on the rear end pin (1-2) of Rack Body (1) right sliding rail；Left sliding rail arranges identical spring arrangement on Rack Body (1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910029021.9A CN109513606A (en) | 2019-01-12 | 2019-01-12 | A kind of layer-stepping sandstone-screening machine |
| NL2024633A NL2024633B1 (en) | 2019-01-12 | 2020-01-09 | Layered Sand - Gravel Screening Device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910029021.9A CN109513606A (en) | 2019-01-12 | 2019-01-12 | A kind of layer-stepping sandstone-screening machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109513606A true CN109513606A (en) | 2019-03-26 |
Family
ID=65798818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910029021.9A Pending CN109513606A (en) | 2019-01-12 | 2019-01-12 | A kind of layer-stepping sandstone-screening machine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109513606A (en) |
| NL (1) | NL2024633B1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110152996A (en) * | 2019-05-27 | 2019-08-23 | 谢锦州 | A kind of green soy bean screening machine |
| CN110216067A (en) * | 2019-05-21 | 2019-09-10 | 南京金陵化工厂有限责任公司 | A kind of compound stabilizer production screening plant and screening technique |
| CN110280477A (en) * | 2019-07-05 | 2019-09-27 | 浙江海洋大学 | A kind of dustless sand sieving machine of civil engineering |
| CN111001556A (en) * | 2019-12-16 | 2020-04-14 | 周建平 | Sand and stone filter equipment based on variable speed shakes and prevents to block up |
| CN111185372A (en) * | 2020-03-09 | 2020-05-22 | 程志求 | Grit screening installation for building engineering |
| CN111804037A (en) * | 2020-08-17 | 2020-10-23 | 沈杰毅 | Alloy liquid filter equipment among casting process |
| CN112058642A (en) * | 2020-08-28 | 2020-12-11 | 广州嘉宜科技有限公司 | Device for screening coffee fruits in size |
| CN113275245A (en) * | 2021-06-09 | 2021-08-20 | 湖北楚民发农业科技有限公司 | Full-automatic grain drying production line with pay-off screening mechanism |
| CN114700259A (en) * | 2022-05-17 | 2022-07-05 | 郑州市农业技术推广中心 | Agricultural seed selection device |
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|---|---|---|---|---|
| GB527210A (en) * | 1939-04-04 | 1940-10-03 | Parker Ltd Frederick | Improvements relating to screening, sifting and grading apparatus |
| JPH11138102A (en) * | 1997-11-07 | 1999-05-25 | Ebara Koki Kk | Vibrating sieve |
| US20040112801A1 (en) * | 2001-04-06 | 2004-06-17 | Burkit Mainin | Mineral processing device |
| CN206716436U (en) * | 2017-04-16 | 2017-12-08 | 郭小平 | A kind of building sandstone screening plant based on crank block slider structure |
| CN206854078U (en) * | 2017-06-21 | 2018-01-09 | 张涛 | A kind of multi-functional civil engineering vibratory sieve |
| CN207238455U (en) * | 2017-08-30 | 2018-04-17 | 深圳市科拉达精细化工有限公司 | A kind of Simple screening machine |
| CN209362993U (en) * | 2019-01-12 | 2019-09-10 | 陕西理工大学 | A kind of sandstone screening plant |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE129655C (en) * | ||||
| CN106311596A (en) * | 2016-08-18 | 2017-01-11 | 江苏大学 | Inertial vibrating screen mechanism |
| CN207430674U (en) * | 2017-09-07 | 2018-06-01 | 河北慈心环保科技有限公司 | A kind of double-deck screen shale shaker |
| CN107790374A (en) * | 2017-12-11 | 2018-03-13 | 合肥挺泰环保科技有限公司 | A kind of impurity screening plant of soil remediation |
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2019
- 2019-01-12 CN CN201910029021.9A patent/CN109513606A/en active Pending
-
2020
- 2020-01-09 NL NL2024633A patent/NL2024633B1/en not_active IP Right Cessation
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB527210A (en) * | 1939-04-04 | 1940-10-03 | Parker Ltd Frederick | Improvements relating to screening, sifting and grading apparatus |
| JPH11138102A (en) * | 1997-11-07 | 1999-05-25 | Ebara Koki Kk | Vibrating sieve |
| US20040112801A1 (en) * | 2001-04-06 | 2004-06-17 | Burkit Mainin | Mineral processing device |
| CN206716436U (en) * | 2017-04-16 | 2017-12-08 | 郭小平 | A kind of building sandstone screening plant based on crank block slider structure |
| CN206854078U (en) * | 2017-06-21 | 2018-01-09 | 张涛 | A kind of multi-functional civil engineering vibratory sieve |
| CN207238455U (en) * | 2017-08-30 | 2018-04-17 | 深圳市科拉达精细化工有限公司 | A kind of Simple screening machine |
| CN209362993U (en) * | 2019-01-12 | 2019-09-10 | 陕西理工大学 | A kind of sandstone screening plant |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110216067A (en) * | 2019-05-21 | 2019-09-10 | 南京金陵化工厂有限责任公司 | A kind of compound stabilizer production screening plant and screening technique |
| CN110152996A (en) * | 2019-05-27 | 2019-08-23 | 谢锦州 | A kind of green soy bean screening machine |
| CN110280477A (en) * | 2019-07-05 | 2019-09-27 | 浙江海洋大学 | A kind of dustless sand sieving machine of civil engineering |
| CN111001556A (en) * | 2019-12-16 | 2020-04-14 | 周建平 | Sand and stone filter equipment based on variable speed shakes and prevents to block up |
| CN111001556B (en) * | 2019-12-16 | 2021-11-16 | 湖南九溪洞科技有限公司 | Sand and stone filter equipment based on variable speed shakes and prevents to block up |
| CN111185372A (en) * | 2020-03-09 | 2020-05-22 | 程志求 | Grit screening installation for building engineering |
| CN111185372B (en) * | 2020-03-09 | 2023-10-13 | 池州市汇成废弃资源综合利用有限公司 | Sand and stone screening equipment for constructional engineering |
| CN111804037A (en) * | 2020-08-17 | 2020-10-23 | 沈杰毅 | Alloy liquid filter equipment among casting process |
| CN112058642A (en) * | 2020-08-28 | 2020-12-11 | 广州嘉宜科技有限公司 | Device for screening coffee fruits in size |
| CN113275245A (en) * | 2021-06-09 | 2021-08-20 | 湖北楚民发农业科技有限公司 | Full-automatic grain drying production line with pay-off screening mechanism |
| CN114700259A (en) * | 2022-05-17 | 2022-07-05 | 郑州市农业技术推广中心 | Agricultural seed selection device |
| CN114700259B (en) * | 2022-05-17 | 2023-10-24 | 郑州市农业技术推广中心 | Agricultural seed selection device |
Also Published As
| Publication number | Publication date |
|---|---|
| NL2024633A (en) | 2020-08-13 |
| NL2024633B1 (en) | 2020-11-23 |
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Application publication date: 20190326 |