CN114289308B - Concrete sand-stone separator - Google Patents
Concrete sand-stone separator Download PDFInfo
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- CN114289308B CN114289308B CN202111460868.6A CN202111460868A CN114289308B CN 114289308 B CN114289308 B CN 114289308B CN 202111460868 A CN202111460868 A CN 202111460868A CN 114289308 B CN114289308 B CN 114289308B
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Abstract
The invention provides a concrete sand and stone separator which comprises a box body, wherein a feeding pipe is arranged on one side of the box body, a separation bin communicated with the feeding pipe is arranged in the box body, a spiral conveying shaft is rotatably connected to the separation bin, a motor used for driving the spiral conveying shaft is arranged on the box body, a discharging pipe communicated with the separation bin is arranged on the side wall of the box body, a plurality of sand discharging holes are formed in the bottom surface of the separation bin in a penetrating mode, a sand discharging pipe is arranged on the side wall of the box body, which is close to the sand discharging holes, a sand cleaning plate and a cylinder used for driving the sand cleaning plate are arranged on the box body, a plurality of dredging columns are arranged on the sand cleaning plate, and the dredging columns are connected to the corresponding sand discharging holes in a sliding mode. The invention has the advantages of efficiently cleaning the sand blocks in the sand discharge holes, avoiding the blockage of the sand discharge holes and improving the screening efficiency of the separator to a certain extent.
Description
Technical Field
The invention relates to the field of sand and stone separators, in particular to a concrete sand and stone separator.
Background
At present, chinese patent with bulletin number of CN212041343U discloses a concrete sand and stone separator, including the supporting legs, the top fixedly connected with of supporting legs handles the case, one side top fixedly connected with conveying pipe of handling the case, the one end fixedly connected with of conveying pipe goes into the hopper, the other end fixedly connected with separation storehouse of conveying pipe, the bottom of separation storehouse evenly has a plurality of sediment ejection holes that link up, movable hole and discharge hole have been seted up to the one end of separation storehouse, the inside fixedly connected with row material pipe of discharge hole, the inside swing joint of movable hole has the conveying axle, the one end fixedly connected with motor of conveying axle, the bottom middle part fixedly connected with sand discharge pipe of handling the case. However, when the separator is used, sand in the separation bin is easy to agglomerate and block the sand discharge hole, so that the separator is inconvenient to clean, and the screening efficiency of the separator is reduced to a certain extent.
Disclosure of Invention
In view of the above, the present invention aims to provide a concrete sand-stone separator, which has the advantages of efficiently cleaning sand blocks in sand discharge holes, avoiding the blockage of the sand discharge holes, and improving the screening efficiency of the separator to a certain extent.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a concrete sand and stone separator, includes the box, box one side is provided with the conveying pipe, be provided with in the box with the communicating separation storehouse of conveying pipe, the separation storehouse rotates and is connected with the screw conveyer shaft, the box is provided with and is used for the drive the motor of screw conveyer shaft, the box be close to the lateral wall of motor be provided with the communicating discharging pipe of separation storehouse, the bottom surface of branch storehouse is link up there are a plurality of sand discharge holes, the box is close to the lateral wall of sand discharge hole is provided with the sand discharge pipe, the box is provided with clear sand board and is used for the drive clear sand board's cylinder, be provided with a plurality of mediation posts on the clear sand board, a plurality of mediation posts slide and are connected in a plurality of sand discharge holes that correspond.
Through above-mentioned technical scheme, carry the grit to the conveying pipe, under the dead weight effect of grit, the grit falls to the separation storehouse along the conveying pipe that the slope set up, makes the screw conveying axle rotate through driving motor to make epaxial helical blade of screw conveying drive the grit move mutually discharging pipe one side, at this in-process, sand in the grit falls to in the cavity of box through the sediment outflow hole under the dead weight effect, later exports through the sediment outflow pipe. The cylinder drives the sand removing plate to be close to one side of the sand discharging hole, so that a plurality of dredging columns are inserted into a plurality of corresponding sand discharging holes, sand agglomerating in the sand discharging holes is squeezed out and discharged out of the sand discharging holes, and the sand is conveyed to the next sand discharging hole by the spiral conveying shaft to clean sand blocks in the sand discharging holes, so that the sand discharging holes are prevented from being blocked, and the screening efficiency of the separator is improved to a certain extent.
Preferably, the box body is close to the inner wall of the sand discharge pipe and is symmetrically provided with two inclined planes I, and the inclined planes I face the sand cleaning plate.
Through the technical scheme, when the sieved sand falls to the inner wall of the box body through the sand discharge hole, under the dead weight effect of the sand, the first inclined plane guides the sand to move to one side of the sand discharge pipe, so that the sand is discharged from the sand discharge pipe.
Preferably, the sand cleaning plate is symmetrically provided with two inclined planes II, and the inclined planes II are attached to the corresponding inclined planes I.
Through above-mentioned technical scheme, when the clear sand board of cylinder drive is close to one side of inclined plane one side, the mediation post breaks away from the sand hole, and inclined plane two is laminated mutually with inclined plane one for avoid inclined plane one to be directly impacted by clear sand board and damage.
Preferably, the bottom surface of the sand cleaning plate is provided with a buffer column, the buffer column is provided with a jack for the piston rod of the air cylinder to be inserted, the piston rod of the air cylinder is provided with a positioning block, the jack is provided with a chute for the sliding connection of the positioning block, and a damping spring is arranged between the inner groove wall of the chute and the positioning block.
Through the technical scheme, the positioning block and the chute are used for preventing the piston rod of the cylinder from separating from the buffer column, when the first inclined plane is jointed with the second inclined plane, the cylinder drives the positioning block to slide downwards, the damping spring stretches, when the positioning block is abutted against the bottom inner groove wall of the chute, the cylinder drives the positioning block to slide upwards for approaching the sand removing plate to one side of the sand removing hole, in the process, the stretched damping spring vibrates for buffering the impact of the positioning block on the chute and driving the sand removing plate to vibrate along with the impact, so that the dredging column can slide reciprocally along the axial direction of the sand removing hole in the inner hole wall of the sand removing hole, the cleaning effect of the dredging column on the sand removing hole is enhanced, meanwhile, under the dead weight effect of the sand removing plate and the elastic force effect of the damping spring, the second inclined plane is jointed with the first inclined plane in a reciprocating way and separated, a certain squeezing effect is achieved on sand attached to the first inclined plane, and sand is convenient to output to one side of the sand removing pipe.
Preferably, a telescopic rod sleeved by the damping spring is arranged between the inner groove wall of the chute and the positioning block.
Through above-mentioned technical scheme, the telescopic link is used for guiding damping spring's flexible direction.
Preferably, the side wall of the sand removing plate, which is close to the dredging column, is provided with a first curved surface, and the first curved surface faces the sand discharging pipe.
Through above-mentioned technical scheme, when sand falls to clear sand board through the sediment outflow hole, under the assistance of the clear sand board of vibration, receive the sand of dead weight effect under the guide of curved surface one, break away from clear sand board and fall to the inclined plane wall, avoid clear sand board accumulation too much sand.
Preferably, the dredging column is provided with a second curved surface, and the inner hole wall of the sand discharge hole is provided with a third curved surface attached to the second curved surface.
Through above-mentioned technical scheme, when the mediation post is close to sediment outflow hole one side, curved surface two is laminated with the curved surface three-phase for in leading the mediation post to insert sediment outflow hole, guarantee when clear sand board vibration, the mediation post inserts sediment outflow hole smoothly.
Preferably, two through grooves are symmetrically formed in the inner hole wall of the sand discharge hole, a barrier strip is connected to the through grooves in a sliding mode, a compression spring is arranged between the inner groove wall of each through groove and the barrier strip, the barrier strip is exposed out of the end portion of each through groove, the length of the end portion of each barrier strip is smaller than the radius of the sand discharge hole, a guide curved surface is arranged on the side wall, close to the dredging column, of each barrier strip, and the guide curved surface faces to the curved surface II.
Through the technical scheme, under the action of the elasticity of the compression spring, the two baffle strips are close to each other along the inner groove wall of the through groove, gaps between the two baffle strips are used for sand meeting screening requirements to pass through, when the dredging column slides upwards along the inner hole wall of the sand hole, the second curved surface is in conflict with the guide curved surface, the dredging column drives the two baffle strips to be separated from each other under the guide of the guide curved surface, the compression spring contracts, the gaps between the two baffle strips are expanded, the dredging column pushes sand blocks blocked in the sand hole out of the sand hole, when the dredging column slides downwards along the inner hole wall of the sand hole and is far away from the baffle strips, the two baffle strips are relatively gently close to each other under the guide of the second curved surface, and are used for scattering sand blocks falling into the sand hole in a hit mode, so that the dredging state of the sand hole is maintained.
Preferably, the barrier strip is provided with a limiting block, and the inner groove wall of the through groove is provided with a limiting groove for sliding connection of the limiting block.
Through the technical scheme, the limiting groove and the limiting block are used for limiting the sliding movement of the barrier strip in the through groove, so that the compression spring is prevented from being excessively contracted or stretched, the compression spring keeps good elastic potential energy, and the barrier strip is prevented from being separated from the through groove. Under the action of the elasticity of the compression spring, the compression spring drives the barrier strips to be abutted against the inner groove wall of the limit groove, which is close to the sand discharge hole, so as to keep the distance between the two barrier strips.
Drawings
FIG. 1 is a cross-sectional view of an embodiment;
FIG. 2 is an enlarged view of region A of FIG. 1;
fig. 3 is an enlarged view of region B of fig. 1.
Reference numerals: 1. a case; 2. supporting feet; 3. a support plate; 4. a mounting groove; 5. a collection bucket; 6. a feed pipe; 7. a hopper; 8. a separation bin; 9. a screw conveying shaft; 10. a motor; 11. a discharge pipe; 12. a sand discharge hole; 13. a sand discharge pipe; 14. a sand removing plate; 15. a cylinder; 16. dredging the column; 17. an inclined plane I; 18. a second inclined plane; 19. an inclined plane III; 20. a buffer column; 21. a jack; 22. a positioning block; 23. a chute; 24. a damping spring; 25. a telescopic rod; 26. a first curved surface; 27. a second curved surface; 28. a third curved surface; 29. a protective cover; 30. a guide curved surface; 31. a through groove; 32. a barrier strip; 33. a compression spring; 34. a limiting block; 35. and a limit groove.
Detailed Description
The following detailed description of the invention is provided in connection with the accompanying drawings to facilitate understanding and grasping of the technical scheme of the invention.
Referring to fig. 1, 2 and 3, a concrete sand and stone separator comprises a box body 1, wherein a feeding pipe 6 is arranged on one side of the box body 1, the feeding pipe 6 is obliquely arranged, a hopper 7 is arranged at the end part, far away from the box body 1, of the feeding pipe 6, a separation bin 8 communicated with the feeding pipe 6 is arranged in the box body 1, sand and stone is poured into the hopper 7, so that the sand and stone are input from the hopper 7 to the feeding pipe 6 under the action of dead weight, and the sand and stone fall to the separation bin 8 along the obliquely arranged feeding pipe 6. The separation bin 8 is rotationally connected with the spiral conveying shaft 9, the box 1 is provided with a motor 10 used for driving the spiral conveying shaft 9, the side wall of the box 1, which is close to the motor 10, is provided with a discharging pipe 11 communicated with the separation bin 8, the bottom surface of the separation bin is penetrated with a plurality of sand discharging holes 12, the spiral conveying shaft 9 is rotated by driving the motor 10, thereby the spiral blades on the spiral conveying shaft 9 drive sand and stone to move on one side of the discharging pipe 11, sand in sand falls into a cavity of the box 1 under the action of dead weight through the sand discharging holes 12, and the sand with larger volume after screening is output from the discharging pipe 11. The inner wall of the box body 1 is provided with a sand discharge pipe 13 near the side wall of the sand discharge hole 12 for outputting sand separated from the sand discharge hole 12.
The box 1 is provided with a sand removing plate 14 and a cylinder 15 for driving the sand removing plate 14, a plurality of dredging columns 16 are arranged on the sand removing plate 14, and the dredging columns 16 are connected to the sand discharging holes 12 in a sliding mode. The cylinder 15 drives the sand removing plate 14 to be close to one side of the sand discharging hole 12, so that a plurality of dredging columns 16 are inserted into a plurality of corresponding sand discharging holes 12, sand agglomerated in the sand discharging holes 12 is squeezed and dispersed and discharged out of the sand discharging holes 12, and the spiral conveying shaft 9 conveys sand to the next sand discharging hole 12 so as to clean sand blocks in the sand discharging holes 12, avoid the sand discharging holes 12 from being blocked, and improve the screening efficiency of the separator to a certain extent. The cylinder 15 is provided with a protective cover 29 for protecting the cylinder 15, so that sand output by the sand discharge pipe 13 is prevented from falling onto the cylinder 15, and interference is caused to driving of the cylinder 15. The protective cover 29 is provided with a third inclined surface 19, and the third inclined surface 19 faces the sand discharge pipe 13 and is used for guiding the falling direction of sand separated from the sand discharge pipe 13 so as to facilitate the collection of sand by workers.
Two inclined planes I17 are symmetrically arranged on the inner wall of the box body 1 close to the sand discharge pipe 13, and the inclined planes I17 face the sand cleaning plate 14. When the sieved sand falls to the inner wall of the box body 1 through the sand discharge hole 12, the first inclined surface 17 guides the sand to move to one side of the sand discharge pipe 13 under the self weight of the sand, so that the sand is discharged from the sand discharge pipe 13. The sand cleaning plate 14 is symmetrically provided with two inclined planes II 18, and the inclined planes II 18 are attached to the corresponding inclined planes I17. When the cylinder 15 drives the sand removing plate 14 to approach to one side of the first inclined plane 17, the dredging column 16 is separated from the sand discharging hole 12, and the second inclined plane 18 is attached to the first inclined plane 17 to avoid damage caused by direct impact of the first inclined plane 17 by the sand removing plate 14.
The bottom surface of the sand cleaning plate 14 is provided with a buffer column 20, the buffer column 20 is provided with an insertion hole 21 for inserting a piston rod of the air cylinder 15, the piston rod of the air cylinder 15 is provided with a positioning block 22, and the insertion hole 21 is provided with a sliding chute 23 for sliding connection of the positioning block 22 so as to prevent the piston rod of the air cylinder 15 from being separated from the buffer column 20.
A damping spring 24 is arranged between the inner groove wall of the chute 23 and the positioning block 22, and a telescopic rod 25 sleeved by the damping spring 24 is arranged between the inner groove wall of the chute 23 and the positioning block 22 and used for guiding the telescopic direction of the damping spring 24. When the first inclined surface 17 is jointed with the second inclined surface 18, under the action of the elastic force of the damping spring 24, the damping spring 24 is driven to stretch by the positioning block 22, when the air cylinder 15 drives the positioning block 22 to slide towards the side far away from the jack 21, the damping spring 24 is contracted, the sand cleaning plate 14 is close to the sand discharging hole 12, the dredging column 16 is inserted into the sand discharging hole 12, in the process, the stretched damping spring 24 vibrates to buffer the impact of the positioning block 22 on the sliding groove 23 and drive the sand cleaning plate 14 to vibrate along with the impact, so that the dredging column 16 slides back and forth along the axial direction of the sand discharging hole 12 on the inner hole wall of the sand discharging hole 12, the cleaning effect of the dredging column 16 on the sand discharging hole 12 is enhanced, meanwhile, under the self weight of the sand cleaning plate 14 and the elastic force of the damping spring 24, the second inclined surface 18 is jointed with the first inclined surface 17 in a reciprocating mode and separated, a certain squeezing and scattering effect is played on sand attached to the first inclined surface 17, and sand is convenient to output towards the sand discharging tube 13 side.
The side wall of the sand removing plate 14, which is close to the dredging column 16, is provided with a first curved surface 26, and the first curved surface 26 faces the sand discharging pipe 13. When sand falls onto the sand removing plate 14 through the sand discharging holes 12, the sand under the action of dead weight is separated from the sand removing plate 14 and falls onto the inclined surface wall under the guidance of the first curved surface 26 with the aid of the vibrating sand removing plate 14, so that excessive sand accumulation of the sand removing plate 14 is avoided. The dredging column 16 is provided with a second curved surface 27, and the inner hole wall of the sand discharge hole 12 is provided with a third curved surface 28 which is attached to the second curved surface 27. When the dredging column 16 approaches to one side of the sand hole 12, the second curved surface 27 is attached to the third curved surface 28 to guide the dredging column 16 to be inserted into the sand hole 12, so as to ensure that the dredging column 16 is smoothly inserted into the sand hole 12 when the sand cleaning plate 14 vibrates.
Two through grooves 31 are symmetrically formed in the inner hole wall of the sediment trapping hole 12, the through grooves 31 are slidably connected with barrier ribs 32, the through grooves 31 are used for guiding the barrier ribs 32 to move in the correct position, compression springs 33 are arranged between the inner groove walls of the through grooves 31 and the barrier ribs 32, under the action of the elasticity of the compression springs 33, the two barrier ribs 32 are close to each other along the inner groove walls of the through grooves 31, the length of the end portions of the barrier ribs 32 exposed out of the through grooves 31 is smaller than the radius of the sediment trapping hole 12, gaps between the two barrier ribs 32 are used for sand meeting screening requirements to pass through, guide curved surfaces 30 are arranged on the side walls of the barrier ribs 32 close to the dredging columns 16, the guide curved surfaces 30 are curved towards the curved surfaces two 27, when the dredging columns 16 slide upwards along the inner hole wall of the sediment trapping hole 12, the curved surfaces two curved surfaces 27 are in contact with the guide curved surfaces 30, the dredging columns 16 are driven to be separated from each other under the guide of the guide curved surfaces 30, the compression springs 33 shrink, gaps between the two barrier ribs 32 are expanded, sand blocked in the sediment trapping holes 12 are pushed out of the sediment trapping holes 16, and when the dredging columns 16 slide downwards along the inner hole 12 and keep the inner hole walls of the barrier ribs 12, and the two curved surfaces of the barrier ribs are kept away from the guide surfaces 32 to be in a gentle state, and the two curved surfaces of the dredging columns are kept in a state of the dredging grooves, and the dredging grooves are kept in a state, and the dredging grooves are kept in a smooth state, and the dredging holes, and the dredging grooves are separated, and the dredging holes are separated. The stop bars 32 are provided with limiting blocks 34, limiting grooves 35 for sliding connection of the limiting blocks 34 are formed in the inner groove walls of the through grooves 31, under the action of the elastic force of the compression springs 33, the compression springs 33 drive the stop bars 32 to be in contact with the inner groove walls of the limiting grooves 35 close to the sand discharge holes 12 so as to keep the distance between the two stop bars 32, the limiting grooves 35 and the limiting blocks 34 are used for limiting sliding movement of the stop bars 32 in the through grooves 31, the compression springs 33 are prevented from being excessively contracted or expanded, good elastic potential energy is kept by the compression springs 33, and the stop bars 32 are prevented from being separated from the through grooves 31.
The bottom of the box body 1 is provided with supporting feet 2, the supporting feet 2 are used for supporting the box body 1, the supporting piece is provided with a supporting plate 3 used for supporting a cylinder 15, and the supporting plate 3 can also improve the structural stability of the separator. The mounting groove 4 has been seted up to backup pad 3, and the mounting groove 4 slides and is connected with and collect fill 5, and it is inconsistent with safety cover 29 to collect fill 5 for collect the sand that breaks away from sand discharge tube 13, the mounting groove 4 is connected with the sliding of collecting fill 5, and the staff of being convenient for collects the sand after the screening.
Of course, the above is only a typical example of the invention, and other embodiments of the invention are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the invention claimed.
Claims (4)
1. The utility model provides a concrete sand and stone separator, includes box (1), box (1) one side is provided with conveying pipe (6), be provided with in box (1) with conveying pipe (6) communicating separation storehouse (8), separation storehouse (8) rotate and are connected with screw conveyer axle (9), box (1) are provided with and are used for the drive screw conveyer axle (9) motor (10), box (1) be close to motor (10) lateral wall be provided with separating storehouse (8) communicating discharging pipe (11), the bottom surface of separation storehouse (8) link up have a plurality of sand discharging hole (12), box (1) are close to the lateral wall of sand discharging hole (12) is provided with sand discharging pipe (13), characterized by: the box body (1) is provided with a sand removing plate (14) and a cylinder (15) for driving the sand removing plate (14), the sand removing plate (14) is provided with a plurality of dredging columns (16), the dredging columns (16) are connected with a plurality of sand discharging holes (12) in a sliding way, two inclined planes (17) are symmetrically arranged on the inner wall, close to the sand discharging pipe (13), of the box body (1), the inclined planes (17) face the sand removing plate (14),
the sand cleaning plate (14) is symmetrically provided with two inclined planes II (18), the inclined planes II (18) are attached to the corresponding inclined planes I (17),
the bottom surface of the sand cleaning plate (14) is provided with a buffer column (20), the buffer column (20) is provided with a jack (21) for the insertion of a piston rod of the air cylinder (15), the piston rod of the air cylinder (15) is provided with a positioning block (22), the jack (21) is provided with a sliding chute (23) for the sliding connection of the positioning block (22), a damping spring (24) is arranged between the inner wall of the sliding chute (23) and the positioning block (22),
the dredging column (16) is provided with a second curved surface (27), the inner hole wall of the sand discharge hole (12) is provided with a third curved surface (28) which is attached to the second curved surface (27),
two logical groove (31) have been seted up to the hole wall symmetry in sediment outflow hole (12), it is connected with blend stop (32) to lead to groove (31) to slide, the interior slot wall of leading to groove (31) with be provided with compression spring (33) between blend stop (32), blend stop (32) expose the tip length of leading to groove (31) is less than the radius in sediment outflow hole (12), blend stop (32) are close to the lateral wall of mediation post (16) is provided with guide curved surface (30), guide curved surface (30) orientation curved surface two (27) crooked setting.
2. The concrete sand separator according to claim 1, wherein: a telescopic rod (25) sleeved by the damping spring (24) is arranged between the inner groove wall of the sliding groove (23) and the positioning block (22).
3. The concrete sand separator according to claim 1, wherein: the sand removing plate (14) is provided with a first curved surface (26) close to the side wall of the dredging column (16), and the first curved surface (26) faces the sand discharging pipe (13).
4. The concrete sand separator according to claim 1, wherein: the stop strip (32) is provided with a limiting block (34), and the inner groove wall of the through groove (31) is provided with a limiting groove (35) for sliding connection of the limiting block (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111460868.6A CN114289308B (en) | 2021-11-30 | 2021-11-30 | Concrete sand-stone separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111460868.6A CN114289308B (en) | 2021-11-30 | 2021-11-30 | Concrete sand-stone separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114289308A CN114289308A (en) | 2022-04-08 |
| CN114289308B true CN114289308B (en) | 2023-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111460868.6A Active CN114289308B (en) | 2021-11-30 | 2021-11-30 | Concrete sand-stone separator |
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Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205868791U (en) * | 2016-06-18 | 2017-01-11 | 天津嘉立荷饲料有限公司 | Cleaning sieve |
| CN110394295B (en) * | 2019-07-29 | 2021-07-06 | 内江师范学院 | Building waste recycling concrete separation device |
| CN211436919U (en) * | 2019-10-11 | 2020-09-08 | 大连收获金属纤维有限公司 | Prevent drum sieve of jam |
| CN210935806U (en) * | 2019-11-05 | 2020-07-07 | 安徽鸿坤药业有限公司 | Rotary-type sieving mechanism is used in medicinal material production |
| CN211538480U (en) * | 2020-01-14 | 2020-09-22 | 陕西融成伟业混凝土有限公司 | Roller sand screening machine |
| CN212041343U (en) * | 2020-01-21 | 2020-12-01 | 胡炎 | Concrete grit separating centrifuge |
| CN214077687U (en) * | 2020-09-16 | 2021-08-31 | 董玲洋 | Adjustable screening device |
| CN213494793U (en) * | 2020-11-03 | 2021-06-22 | 四川鼎德商品混凝土有限公司 | Screening and filtering device for ready-mixed concrete |
| CN214052446U (en) * | 2020-12-16 | 2021-08-27 | 东莞市建业混凝土有限公司 | Filtering mechanism applied to sand-stone separator |
| CN112934391B (en) * | 2021-01-25 | 2022-12-23 | 忠县祥鑫建材有限公司 | Grit screening carries all-in-one |
| CN214812401U (en) * | 2021-05-10 | 2021-11-23 | 山东银箭金属颜料有限公司 | Ball mill cylinder screen for aluminum pigment |
| CN214811279U (en) * | 2021-07-16 | 2021-11-23 | 广州市卓高新材料有限公司 | Raw material crushing device for producing sizing agent for papermaking |
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2021
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