Gravel separation device for concrete production

Abstract

The invention relates to the technical field of concrete production, and discloses a gravel separation device for concrete production, which comprises a separation box, a partition plate is arranged on one side of an inner cavity of the separation box, a screening area and a discharging area are respectively arranged on two sides of the partition plate, and a screening mechanism is arranged in the screening area. The screening mechanism comprises a rotating disc, a scraping ring, a driving assembly used for driving the rotating disc to rotate and a transmission assembly used for driving the scraping ring to move, the rotating disc is rotationally installed in the screening area, and a plurality of screening columns are fixedly installed on one side of the rotating disc; through combination of the rotating disc and the screening column, gravel can be effectively separated, the screening efficiency is improved, through use of the scraping rings, the common blockage problem in traditional screen equipment is reduced, the maintenance and cleaning process is simplified, and due to the fact that the scraping rings can automatically clean the screening column when moving, the maintenance requirement is greatly reduced, and the downtime is greatly shortened.

Description

Technical Field

[0001] The invention relates to the technical field of concrete production, in particular to a sand and gravel separation device for concrete production. Background Art

[0002] Sand and gravel are the main components of ordinary concrete. They play an indispensable role in concrete. Sand is mainly responsible for filling the gaps between cement particles, reducing the stress of cement shrinkage, and thus preventing concrete from cracking; while gravel is piled into a tight structure to provide support for concrete. This division of labor ensures that concrete has good stability and durability. The coarseness and particle gradation of gravel have a significant impact on the technical performance of concrete. If the gravel is too coarse or too fine, it will affect the cohesion and workability of concrete, increase cement consumption, and even reduce the strength and wear resistance of concrete. Therefore, in the concrete production process, the particle size and gradation of gravel need to be strictly controlled to maintain the quality of concrete.

[0003] In industrial production, screen separation technology is widely used in the screening process of larger particles in sand and gravel. This technology relies on a device with a specific size of sieve holes to implement particle classification. However, this screening method often faces the problem of sieve hole blockage, which requires periodic cleaning to maintain screening efficiency. Since once the sieve holes are blocked by fine particles, it usually involves a complex cleaning process, so frequent maintenance significantly increases the complexity and labor intensity of the operation. In addition, frequent cleaning of the screen not only affects production efficiency, but may also cause interruptions to the production process due to downtime for maintenance, thereby negatively affecting overall production capacity. Therefore, although screen separation technology has a wide range of applications in the field of material handling, its reliability and efficiency in continuous production environments still need to be improved.

[0004] Therefore, it is necessary to provide a sand and gravel separation device for concrete production to solve the above technical problems. Summary of the invention

[0005] The object of the present invention is to provide a sand and gravel separation device for concrete production, which reduces the common clogging problem in traditional screen equipment and simplifies the maintenance and cleaning process.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a sand and gravel separation device for concrete production, comprising a separation box, a partition is provided on one side of the inner cavity of the separation box, a screening area and a discharge area are respectively provided on both sides of the partition, a screening mechanism is provided inside the screening area, the screening mechanism comprises a rotating disk, a scraper ring, a driving component for driving the rotating disk to rotate and a transmission component for driving the scraper ring to move, the rotating disk is rotatably installed inside the screening area, a plurality of screening columns are fixedly installed on one side of the rotating disk, and the plurality of screening columns are distributed in a circular array with the axis of the rotating disk as the center of the array, a plurality of through holes are provided on the scraper ring, and the plurality of screening columns respectively penetrate the plurality of through holes, and the inner walls of the through holes are in contact with the outer peripheral walls of the screening columns, a discharge hole is provided on the partition, a retaining ring is fixedly installed in the discharge hole, and one end of the screening column extends into the inner side of the retaining ring.

[0007] The present invention is further configured as follows: the driving assembly includes a gear, a motor and a rotating shaft, a mounting seat is provided on the side wall of the separation box, the motor is fixedly mounted on the mounting seat, a rotating shaft is fixedly mounted on the output end of the motor, the rotating shaft passes through the gear, the gear is rotatably connected to the inner wall of the separation box, the outer peripheral wall of the rotating disk is provided with convex teeth, the gear is meshed with the convex teeth, a first transmission disk is fixedly mounted on one side of the gear, one end of the rotating shaft passes through the first transmission disk, and a driving disk is fixedly mounted on this end of the rotating shaft.

[0008] The present invention is further configured as follows: the transmission assembly includes a slide, a connecting rod and a screw, the screw is rotatably installed in the screening area, the screw is located above the rotating disk, the screw passes through the slide, and the screw is threadedly connected to the slide, a connecting ring is sleeved on the scraper ring, and the connecting ring is rotatably matched with the scraper ring, the slide is fixedly connected to the connecting ring through the connecting rod, and a second transmission disk is fixedly installed on one end of the screw.

[0009] The present invention is further configured as follows: a plurality of driving teeth are provided on both end surfaces of the driving disk, and the driving teeth are distributed in a circular array with the axis of the driving disk as the array center; a plurality of tooth grooves are provided on one side of the first transmission disk and the second transmission disk close to the driving disk, and the tooth grooves are adapted to the driving teeth.

[0010] The present invention is further configured as follows: a hydraulic cylinder is fixedly mounted on the top of the separation box, and an output end of the hydraulic cylinder is fixedly connected to a mounting seat.

[0011] The present invention is further configured as follows: a sealing disk is provided on one side of the retaining ring, the sealing disk is provided in the discharge area, the sealing disk is elastically connected to the inner wall of the separation box through a spring, and a push rod for pushing the sealing disk to move is fixedly installed on one side of the scraper ring close to the partition.

[0012] The present invention is further configured as follows: a feed barrel is fixedly mounted on one side of the separation box, a feed hole is opened in the middle of the rotating disk, one end of the feed barrel extends into the feed hole, and the feed barrel rotates in coordination with the rotating disk.

[0013] The present invention is further configured as follows: the bottom end of the screening area is connected to a first discharge port, and the bottom end of the discharge area is connected to a second discharge port.

[0014] In summary, the present invention has the following beneficial effects: the present invention can effectively separate sand and gravel and improve screening efficiency through the combination of the rotating disk and the screening column. The use of the scraper ring reduces the common clogging problems in traditional screening equipment and simplifies the maintenance and cleaning process, because these scraper rings can automatically clean the screening column when moving, which greatly reduces the maintenance requirements and downtime. In addition, this automated cleaning mechanism also improves production efficiency because the equipment can operate continuously without frequent shutdowns for maintenance. The precise screening process optimizes product quality control and ensures the performance stability of concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0016] Figure 2 It is a cross-sectional structural schematic diagram of the present invention;

[0017] Figure 3 It is a schematic diagram of the split structure of the screening mechanism of the present invention;

[0018] Figure 4 It is a schematic diagram of the structure of the driving assembly and the transmission assembly of the present invention;

[0019] Figure 5 It is a schematic cross-sectional structural diagram of the gear of the present invention;

[0020] Figure 6 It is a schematic diagram of the split structure of the first transmission disc, the second transmission disc and the driving disc of the present invention.

[0021] In the figure: 1. separation box; 2. feed barrel; 3. first discharge port; 4. second discharge port; 5. partition; 6. rotating disk; 7. screening column; 8. retaining ring; 9. sealing disk; 10. spring; 11. scraper ring; 12. connecting ring; 13. push rod; 14. screw; 15. slide seat; 16. connecting rod; 17. gear; 18. rotating shaft; 19. motor; 20. mounting seat; 21. hydraulic cylinder; 22. first transmission disk; 23. second transmission disk; 24. driving disk; 25. driving gear. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.

[0023] See also Figures 1 to 3 In an embodiment of the present invention, a sand and gravel separation device for concrete production includes a separation box 1, a partition 5 is provided on one side of the inner cavity of the separation box 1, and a screening area and a discharge area are respectively provided on both sides of the partition 5, and a screening mechanism is provided inside the screening area, and the screening mechanism includes a rotating disk 6, a scraper ring 11, a driving component for driving the rotating disk 6 to rotate, and a transmission component for driving the scraper ring 11 to move, the rotating disk 6 is rotatably installed inside the screening area, and a plurality of screening columns 7 are fixedly installed on one side of the rotating disk 6, and the plurality of screening columns 7 are distributed in a ring array with the axis of the rotating disk 6 as the array center, and there is a certain gap between the screening columns 7, and stones larger than the gap are screened out, and the scraper ring 11 is provided with a plurality of through holes, and the plurality of screening columns 7 respectively penetrate the plurality of through holes, and the inner walls of the through holes are in contact with the outer peripheral walls of the screening columns 7, and the partition 5 is provided with a discharge hole, and a retaining ring 8 is fixedly installed in the discharge hole, and the screening One end of the column 7 extends into the inner side of the retaining ring 8; when in use, the sand and gravel to be screened are put into the separation chamber formed between the multiple screening columns 7, and then the driving component drives the rotating disk 6 to rotate. When the rotating disk 6 rotates, it drives the multiple screening columns 7 to rotate, so that the sand and gravel in the separation chamber tumbles, so that the sand and gravel with smaller particles fall downward through the gaps between the screening columns 7 to the first discharge port 3, and the sand and gravel with larger particles remain in the separation chamber. After separation is completed, the scraper ring 11 is driven by the transmission component to move toward the partition plate 5, so that the large particles of sand and gravel in the separation chamber are pushed into the discharge area through the through holes inside the retaining ring 8, and discharged through the second discharge port 4, thereby realizing the separation of large particles of sand and gravel. Since the screening column 7 passes through the through holes on the scraper ring 11, the scraper ring 11 can clean the surface of the screening column 7 when it moves, and can also effectively prevent sand and gravel from being blocked in the gaps between the screening columns 7, which can effectively prevent blockage, and the cleaning process is relatively efficient, effectively improving production efficiency.

[0024] In this embodiment, preferably, the bottom end of the screening area is connected to a first discharge port 3, and the screened sand and gravel are discharged through the first discharge port 3. The bottom end of the discharge area is connected to a second discharge port 4, and the screened large-particle sand and gravel are discharged through the second discharge port 4.

[0025] In this embodiment, preferably, a feed barrel 2 is fixedly installed on one side of the separation box 1, a feed hole is opened in the middle of the rotating disk 6, one end of the feed barrel 2 extends into the feed hole, and the feed barrel 2 rotates in coordination with the rotating disk 6, and sand and gravel are input into the separation chamber through the feed barrel 2.

[0026] In this embodiment, preferably, a sealing disk 9 is provided on one side of the retaining ring 8, and the sealing disk 9 is arranged in the discharge area. The sealing disk 9 is elastically connected to the inner wall of the separation box 1 through a spring 10, and a push rod 13 for pushing the sealing disk 9 to move is fixedly installed on the side of the scraper ring 11 close to the partition 5; in a natural state, the sealing disk 9 is attached to the retaining ring 8 to close one side opening of the separation chamber formed on the inner side of the multiple screening columns 7 to prevent the sand and gravel from rolling directly into the discharge area during screening. When the scraper ring 11 moves toward the partition 5, the push rod 13 on one side of the scraper ring 11 can push open the sealing disk 9, so that large particles of sand and gravel can be pushed into the discharge area, thereby realizing the automatic opening and closing of the sealing disk 9, without the need to set an electrical drive element for driving, thereby reducing costs and improving synchronization.

[0027] See also Figures 4 to 6 In the embodiment of the present invention, the driving assembly includes a gear 17, a motor 19 and a rotating shaft 18. A mounting seat 20 is provided on the side wall of the separation box 1, and the motor 19 is fixedly installed on the mounting seat 20. The output end of the motor 19 is fixedly installed with a rotating shaft 18, and the rotating shaft 18 passes through the gear 17. The gear 17 is rotatably connected to the inner wall of the separation box 1. The outer peripheral wall of the rotating disk 6 is provided with convex teeth, and the gear 17 is meshed with the convex teeth. A first transmission disk 22 is fixedly installed on one side of the gear 17, and one end of the rotating shaft 18 passes through the first transmission disk 22, and a driving disk 24 is fixedly installed on this end of the rotating shaft 18.

[0028] In this embodiment, preferably, the transmission assembly includes a slide 15, a connecting rod 16 and a screw 14, the screw 14 is rotatably installed in the screening area, the screw 14 is located above the rotating disk 6, the screw 14 passes through the slide 15, and the screw 14 is threadedly connected to the slide 15, the scraper ring 11 is sleeved with a connecting ring 12, and the connecting ring 12 is rotatably matched with the scraper ring 11, the slide 15 is fixedly connected to the connecting ring 12 through the connecting rod 16, and a second transmission disk 23 is fixedly installed at one end of the screw 14; a plurality of driving teeth 25 are provided on both end surfaces of the driving disk 24, and the driving teeth 25 are distributed in a ring array with the axis of the driving disk 24 as the array center, and a plurality of tooth grooves are provided on one side of the first transmission disk 22 and the second transmission disk 23 close to the driving disk 24, and the tooth grooves are adapted to the driving teeth 25; a hydraulic cylinder 21 is fixedly installed on the top of the separation box 1, and the output end of the hydraulic cylinder 21 is fixedly connected to the mounting seat 20; the hydraulic cylinder 21 can be driven by the extension and contraction of the output end of the hydraulic cylinder 21 The mounting seat 20 is moved. When the mounting seat 20 moves, the motor 19 can drive the rotating shaft 18 to move, thereby driving the driving disc 24 to move, so that the position of the driving disc 24 can be adjusted. When the driving tooth 25 of the driving disc 24 moves to its left end face and meshes with the tooth groove on the first transmission disc 22, the rotation of the driving disc 24 can drive the first transmission disc 22 to rotate, thereby driving the gear 17 to rotate. When the gear 17 rotates, it drives the rotating disc 6 to rotate, so that multiple screening columns 7 rotate. When the driving disc 24 moves to its right end face, the driving tooth 25 is meshed with the tooth groove on the second transmission disc 23, the rotation of the driving disc 24 can drive the second transmission disc 23 to rotate, thereby driving the screw 14 to rotate. When the screw 14 rotates, it can drive the slide 15 to move, thereby driving the scraper ring 11 to move through the connecting rod 16 and the connecting ring 12 to clean the screening column 7; through the setting of a motor 19, the rotation of the rotating disc 6 and the movement of the scraper ring 11 can be realized, thereby effectively reducing the production cost of the equipment.

[0029] Working principle: The sand and gravel to be screened are put into the separation chamber formed between the multiple screening columns 7 through the feed barrel 2, and then the driving disc 24 is moved to the driving teeth 25 on its left end face to mesh with the tooth grooves on the first transmission disc 22. The motor 19 drives the driving disc 24 to rotate, so that the driving disc 24 drives the first transmission disc 22 to rotate, thereby driving the gear 17 to rotate. When the gear 17 rotates, it drives the rotating disc 6 to rotate, thereby rotating the multiple screening columns 7, so that the sand and gravel in the separation chamber rolls, so that the sand and gravel with smaller particles fall downward through the gaps between the screening columns 7 to the first discharge port 3, and the larger particles The sand and gravel remain in the separation chamber. After the separation is completed, the driving disc 24 moves to the driving tooth 25 on its right end face to mesh with the tooth groove on the second transmission disc 23. The rotation of the driving disc 24 drives the second transmission disc 23 to rotate, thereby driving the screw 14 to rotate. When the screw 14 rotates, it drives the slide 15 to move, thereby driving the scraper ring 11 to move through the connecting rod 16 and the connecting ring 12, so that the large particles of sand and gravel in the separation chamber are pushed into the discharge area through the through holes inside the retaining ring 8 and discharged through the second discharge port 4, thereby realizing the separation of large particles of sand and gravel. At the same time, the movement of the scraper ring 11 can also clean the screening column 7.

[0030] The above description is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, characteristics and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A sand and gravel separation device for concrete production, comprising a separation box (1), a partition (5) is provided on one side of the inner cavity of the separation box (1), a screening area and a discharge area are provided on both sides of the partition (5), and a screening mechanism is provided inside the screening area, characterized in that: The screening mechanism comprises a rotating disk (6), a scraper ring (11), a driving assembly for driving the rotating disk (6) to rotate, and a transmission assembly for driving the scraper ring (11) to move. The rotating disk (6) is rotatably mounted inside the screening area. A plurality of screening columns (7) are fixedly mounted on one side of the rotating disk (6). The plurality of screening columns (7) are distributed in a circular array with the axis of the rotating disk (6) as the array center. The scraper ring (11) is provided with a plurality of through holes. The plurality of screening columns (7) respectively penetrate the plurality of through holes, and the inner walls of the through holes are in contact with the outer peripheral walls of the screening columns (7). The partition plate (5) is provided with a discharge hole. A retaining ring (8) is fixedly mounted in the discharge hole. One end of the screening column (7) extends into the inner side of the retaining ring (8).

2. A sand and gravel separation device for concrete production according to claim 1, characterized in that: The driving assembly comprises a gear (17), a motor (19) and a rotating shaft (18); a mounting seat (20) is provided on the side wall of the separation box (1); the motor (19) is fixedly mounted on the mounting seat (20); a rotating shaft (18) is fixedly mounted on the output end of the motor (19); the rotating shaft (18) passes through the gear (17); the gear (17) is rotatably connected to the inner side wall of the separation box (1); a convex tooth is provided on the outer peripheral wall of the rotating disk (6); the gear (17) meshes with the convex tooth; a first transmission disk (22) is fixedly mounted on one side of the gear (17); one end of the rotating shaft (18) passes through the first transmission disk (22); and a driving disk (24) is fixedly mounted on this end of the rotating shaft (18).

3. A sand and gravel separation device for concrete production according to claim 2, characterized in that: The transmission assembly comprises a slide (15), a connecting rod (16) and a screw (14); the screw (14) is rotatably installed in the screening area, the screw (14) is located above the rotating disk (6), the screw (14) passes through the slide (15), and the screw (14) is threadedly connected to the slide (15); a connecting ring (12) is sleeved on the scraper ring (11), and the connecting ring (12) is rotatably matched with the scraper ring (11); the slide (15) is fixedly connected to the connecting ring (12) through the connecting rod (16), and a second transmission disk (23) is fixedly installed on one end of the screw (14).

4. A sand and gravel separation device for concrete production according to claim 3, characterized in that: Both end surfaces of the driving disk (24) are provided with a plurality of driving teeth (25), the driving teeth (25) being distributed in a ring array with the axis of the driving disk (24) as the array center, and a plurality of tooth grooves are provided on one side of the first transmission disk (22) and the second transmission disk (23) close to the driving disk (24), the tooth grooves being adapted to the driving teeth (25).

5. A sand and gravel separation device for concrete production according to claim 4, characterized in that: A hydraulic cylinder (21) is fixedly mounted on the top of the separation box (1), and an output end of the hydraulic cylinder (21) is fixedly connected to a mounting seat (20).

6. The sand and gravel separation device for concrete production according to claim 1, characterized in that: A sealing disk (9) is provided on one side of the retaining ring (8), and the sealing disk (9) is arranged in the discharge area. The sealing disk (9) is elastically connected to the inner wall of the separation box (1) through a spring (10), and a push rod (13) for pushing the sealing disk (9) to move is fixedly installed on the side of the scraper ring (11) close to the partition (5).

7. The sand and gravel separation device for concrete production according to claim 1, characterized in that: A feed barrel (2) is fixedly mounted on one side of the separation box (1), a feed hole is opened in the middle of the rotating disk (6), one end of the feed barrel (2) extends into the feed hole, and the feed barrel (2) and the rotating disk (6) are rotatably matched.

8. The sand and gravel separation device for concrete production according to claim 1, characterized in that: The bottom end of the screening zone is connected to a first discharge port (3), and the bottom end of the discharge zone is connected to a second discharge port (4).

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