Sand aggregate and gravel separation device

Abstract

The utility model belongs to the technical field of sand and stone separation, and particularly relates to a sand and stone separation device which comprises a base, four fixing sleeves are fixedly connected to the base, a first spring is fixedly connected to the inner wall of the bottom end of each fixing sleeve, a movable rod is fixedly connected to the top end of each first spring, and the movable rod is fixedly connected to the bottom end of each fixing sleeve. The top end of each movable rod is fixedly connected with a triangular seat; in the sand and stone separation process, materials such as pebbles can be effectively prevented from being blocked at the sieve holes through vibration generated by knocking, the sieve holes can be kept unblocked, the materials can be ensured to smoothly pass through the screen mesh, and therefore the screening efficiency is improved, gas is sprayed to the drum screen through the gas outlet nozzle at a certain speed and pressure, and the screening efficiency is improved. And fine particles and wet materials attached to the screen holes can be blown away, so that the screen holes are effectively prevented from being blocked, the materials with high water content can be dried to a certain extent by spraying gas, the humidity of the materials is reduced, and the risk that the screen holes are blocked is further reduced.

Description

Technical Field

[0001] This utility model relates to the field of sand and gravel separation technology, specifically a sand and gravel separation device. Background Technology

[0002] During the sand processing process, since the sand contains sand and gravel, a sand and gravel separation device is needed to screen, separate, and classify the sand and gravel in the sand. Through separation, it can be ensured that each material can be fully utilized, thereby improving the overall material utilization rate.

[0003] Existing drum-type sand and gravel separators mainly consist of a feed hopper, a drum, and a drive unit. During sand and gravel separation, the sand to be separated is first fed into the drum through the feed hopper. Then, the drive unit rotates the drum, generating centrifugal force. Under the action of centrifugal force, the sand and gravel separate inside the drum. Due to the different physical properties of sand and gravel, such as density and particle size, they are distributed in different positions inside the drum. Fine sand falls into the collection area through small holes or screens inside the drum, while larger gravel continues to rotate with the drum and is discharged to the other end. After a period of separation, the sand and gravel gather on both sides of the drum or in different collection areas, achieving classified collection. The collected sand and gravel can be further processed or utilized.

[0004] In existing drum-type sand and gravel separators, when the material contains a large number of particles close to the screen aperture size, these particles easily clog the screen apertures. When the material has a high moisture content, the material tends to adhere to the screen apertures, causing blockage. Screen aperture blockage prevents the material from passing through the screen normally, greatly reducing screening efficiency. Furthermore, screen aperture blockage causes material to accumulate inside the drum, increasing friction and wear between the drum and the screen. Over time, this shortens the lifespan of both the drum and the screen. Therefore, a sand and gravel separator is proposed to address these issues. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the problems mentioned in the background technology, this utility model proposes a sand and gravel separation device.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A sand and gravel separation device of this utility model includes a base, on which four fixed sleeves are fixedly connected. A first spring is fixedly connected to the inner wall of the bottom end of each fixed sleeve, and a movable rod is fixedly connected to the top of the first spring. A triangular seat is fixedly connected to the top of each of the four movable rods. A rotating rod is rotatably mounted on two triangular seats on the same side. Rollers are fitted at both ends of the rotating rod, and the four rollers are correspondingly arranged within the triangular seats. A first motor is mounted on the side wall of each of the two triangular seats on the same end. The output end of the first motor is connected to one end of the rotating rod. A drum screen is mounted on the four rollers, and both ends of the drum screen are fixedly connected to… There are two limiting plates, located on both sides of the roller. A fixing ring is fixedly connected to the middle of the drum screen. When screening and separating sand and gravel, the first motor is started, causing the rotating rod to drive the roller to rotate, which in turn forces the drum screen to rotate. Through the high-speed rotation of the drum screen, sand and gravel are separated inside the drum under the action of centrifugal force. Since the particle size of sand and gravel is different, sand will fall through the screen holes into the sand collection box for collection, while gravel will be intercepted inside the drum screen and finally discharged through the arc-shaped guide hopper. This achieves the separation and classified collection of sand and gravel, thereby ensuring that each material can be fully utilized and improving the overall material utilization rate.

[0007] Preferably, a support frame is fixedly connected to the base, a second motor is installed at the top of the support frame, a rotating disk is installed at the output end of the second motor, an eccentric rod is fixed on the rotating disk, a support plate is fixedly connected to the side wall of the support frame, a fixed seat is installed on the support plate, a pendulum is hinged in the fixed seat, a rectangular plate is fixedly connected to the side wall of the support plate, and a second spring is fixed between the rectangular plate and the pendulum. During the sand and gravel separation process, the second motor operates, causing the rotating disk to drive the eccentric rod to rotate. With the cooperation of the second spring, the eccentric rod forces the pendulum to reciprocate to strike the fixed ring on the outer side wall of the drum screen, thereby knocking down small stones and other materials that are blocking the screen holes. The vibration generated by the striking can effectively prevent small stones and other materials from forming blockages at the screen holes, keeping the screen holes unobstructed, ensuring that the material can pass through the screen smoothly, thereby improving the screening efficiency.

[0008] Preferably, four support columns are fixedly connected to the base, and a sleeve is fixedly connected to the top of each support column. Two sleeves on the same side are fitted with hollow tubes, and the two hollow tubes are located on both sides of the striking component. Multiple air outlets are connected to each hollow tube, and an air injection pipe is connected to one end of each hollow tube. During the sand and gravel separation process, an air pump is connected to the air injection pipe. Through the operation of the air pump, gas is introduced into the hollow tube through the air injection pipe. Finally, the gas is sprayed onto the drum screen at a certain speed and pressure through the air outlets. This can blow away fine particles and wet materials attached to the screen holes, thereby effectively preventing screen hole blockage. The gas injection can disturb the material layer on the drum screen, making the material looser and helping the material pass through the screen holes, thus improving screening efficiency. For materials with high moisture content, the gas injection can also play a certain drying role, reducing the humidity of the material and further reducing the risk of screen hole blockage.

[0009] Preferably, two uprights are fixedly connected to the base, and a feed hopper is fixedly connected to the two uprights. An arc-shaped guide hopper is fixedly connected between two support columns away from the feed hopper. When using the device, the feed hopper facilitates the input of the sand to be screened into the drum screen for screening, and the arc-shaped guide hopper facilitates the discharge of the separated stones through the arc-shaped guide hopper.

[0010] Preferably, a sand collection box is fixedly connected to the base, and the sand collection box is located directly below the drum screen. When using the device, the sand collection box facilitates the collection of the screened sand.

[0011] Preferably, baffle plates are fixed to both sides of the port of the sand collection box, and the two baffle plates are located on both sides of the drum screen. When using the device, by setting baffle plates, the splashing and scattering of materials, especially small particles, during the screening process is effectively prevented, ensuring that the sand can fall accurately into the sand collection box.

[0012] Preferably, the sand collection box has a sand discharge port on one side, and both sides of the sand discharge port are fixedly connected to limit slide rails. The two limit slide rails are fitted with a sealing cover plate. When using the device, the sand discharge port makes it easy to take out the sand collected in the sand collection box.

[0013] The advantages of this utility model are:

[0014] 1. In the sand and gravel separation process, the second electric motor drives the rotating disc to rotate the eccentric rod. With the cooperation of the second spring, the eccentric rod forces the pendulum to reciprocate to strike the fixed ring on the outer wall of the drum screen, thereby knocking down small stones and other materials that are blocking the screen holes. The vibration generated by the striking can effectively prevent small stones and other materials from forming blockages in the screen holes, keeping the screen holes unobstructed and ensuring that the materials can pass through the screen smoothly, thereby improving the screening efficiency.

[0015] 2. In the sand and gravel separation process, this utility model connects an external air pump to the air injection pipe. Through the operation of the air pump, gas is introduced into the hollow tube through the air injection pipe. Finally, the gas is sprayed onto the drum screen at a certain speed and pressure through the air outlet. This can blow away fine particles and wet materials attached to the screen holes, thereby effectively preventing screen blockage. The gas injection can also disturb the material layer on the drum screen, making the material looser and facilitating its passage through the screen holes, thus improving screening efficiency. For materials with high moisture content, the gas injection can also play a certain drying role, reducing the moisture content of the material and further reducing the risk of screen blockage. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a first side view of the overall three-dimensional structure of the device;

[0018] Figure 2 This is a schematic diagram of the overall second side view of the three-dimensional structure of the device;

[0019] Figure 3 A three-dimensional cross-sectional view of the fixed sleeve;

[0020] Figure 4 A schematic diagram of the three-dimensional structure of the striking component;

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the screening mechanism.

[0022] In the diagram: 1. Base; 2. Fixed sleeve; 3. First spring; 4. Movable rod; 5. Triangular seat; 6. Rotating rod; 7. Roller; 8. First motor; 9. Drum screen; 10. Limiting plate; 11. Fixed ring; 12. Support frame; 13. Second motor; 14. Rotary disk; 15. Eccentric rod; 16. Support plate; 17. Fixed seat; 18. Pendulum; 19. Rectangular plate; 20. Second spring; 21. Support column; 22. Tube sleeve; 23. Hollow tube; 24. Air outlet; 25. Air injection pipe; 26. Sand collection box; 27. Baffle plate; 28. Limiting slide rail; 29. ​​Sealing cover plate; 30. Arc-shaped guide hopper; 31. Vertical pole; 32. Feed hopper. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figure 1-5 As shown, a sand and gravel separation device includes a base 1, on which four fixed sleeves 2 are fixedly connected. A first spring 3 is fixedly connected to the inner wall of the bottom end of each fixed sleeve 2, and a movable rod 4 is fixedly connected to the top of each first spring 3. A triangular seat 5 is fixedly connected to the top of each of the four movable rods 4. A rotating rod 6 is rotatably mounted on two triangular seats 5 on the same side. Rollers 7 are fitted at both ends of the rotating rod 6, and the four rollers 7 are correspondingly arranged within the triangular seats 5. A first motor 8 is mounted on the side wall of each of the two triangular seats 5 on the same end. The output end of the first motor 8 is connected to one end of the rotating rod 6. A drum screen 9 is mounted on the four rollers 7. Two limiting plates 10 are fixedly connected to both ends of the drum screen 9, and the two limiting plates 10 are located on both sides of the rollers 7. A fixing ring 11 is fixedly connected to the middle position of the drum screen 9. When screening and separating sand and gravel, the sand to be screened is first fed into the drum screen 9 through the feed hopper 32. Then, the first motor 8 is started, which causes the rotating rod 6 to drive the roller 7 to rotate, thereby forcing the drum screen 9 to rotate as well. Through the high-speed rotation of the drum screen 9, the sand and gravel are separated inside the drum under the action of centrifugal force. Since the particle size of sand and gravel is different, the sand will fall into the sand collection box 26 through the screen holes for collection, while the gravel will be intercepted inside the drum screen 9 and finally discharged through the arc-shaped guide hopper 30. This achieves the separation and classification of sand and gravel, thereby ensuring that each material can be fully utilized and improving the overall material utilization rate.

[0025] A support frame 12 is fixedly connected to the base 1. A second motor 13 is installed at the top of the support frame 12. A rotating disk 14 is installed at the output end of the second motor 13. An eccentric rod 15 is fixed on the rotating disk 14. A support plate 16 is fixedly connected to the side wall of the support frame 12. A fixed seat 17 is installed on the support plate 16. A pendulum 18 is hinged inside the fixed seat 17. A rectangular plate 19 is fixedly connected to the side wall of the support plate 16. A second spring 20 is fixedly connected between the rectangular plate 19 and the pendulum 18. During the sand and gravel separation process... The second motor 13 operates, causing the rotating disk 14 to drive the eccentric rod 15 to rotate. With the cooperation of the second spring 20, the eccentric rod 15 forces the pendulum 18 to reciprocate to strike the fixed ring 11 on the outer wall of the drum screen 9, thereby knocking down small stones and other materials that are blocked in the screen holes. The vibration generated by the striking can effectively prevent small stones and other materials from forming blockages in the screen holes, keeping the screen holes unobstructed, and ensuring that the materials can pass through the screen smoothly, thereby improving the screening efficiency.

[0026] Four support columns 21 are fixedly connected to the base 1. Each support column 21 has a sleeve 22 fixedly connected to its top. Two sleeves 22 on the same side are fitted with hollow tubes 23. The two hollow tubes 23 are located on both sides of the striking component. Each hollow tube 23 is connected to multiple air outlets 24. One end of each hollow tube 23 is connected to an air injection pipe 25. During the sand and gravel separation process, an air pump is connected to the air injection pipe 25. Through the operation of the air pump, gas is introduced into the hollow tube 23 through the air injection pipe 25. Finally, the gas is sprayed onto the drum screen 9 at a certain speed and pressure through the air outlets 24. This can blow away the fine particles and wet materials attached to the screen holes, thereby effectively preventing screen hole blockage. The gas injection can disturb the material layer on the drum screen 9, making the material looser and helping the material pass through the screen holes, thus improving the screening efficiency. For materials with high moisture content, the gas injection can also play a certain drying role, reducing the humidity of the material and further reducing the risk of screen hole blockage.

[0027] Two uprights 31 are fixedly connected to the base 1. The two uprights 31 are fitted with a feed hopper 32, and an arc-shaped guide hopper 30 is fixed between two support columns 21 away from the feed hopper 32. When using this device, the feed hopper 32 makes it easy to put the sand to be screened into the drum screen 9 for screening. The arc-shaped guide hopper 30 makes it easy to discharge the separated stones through the arc-shaped guide hopper 30.

[0028] Please see Figure 1-2As shown, a sand collection box 26 is fixedly connected to the base 1, and the sand collection box 26 is located directly below the drum screen 9. Baffle plates 27 are fixedly connected to both sides of the port of the sand collection box 26, and the two baffle plates 27 are located on both sides of the drum screen 9 respectively. When using this device, by setting up the sand collection box 26, it is convenient to collect the screened sand. By setting up the baffle plates 27, it is effective to prevent the splashing and scattering of materials, especially small particles, during the screening process, ensuring that the sand can fall accurately into the sand collection box 26.

[0029] A sand discharge port is provided on one side of the sand collection box 26. Limiting slide rails 28 are fixed to both sides of the sand discharge port. The two limiting slide rails 28 are fitted with a sealing cover plate 29. When using the device, the sand discharge port makes it easy to take out the sand collected by the sand collection box 26.

[0030] Working Principle: Existing drum-type sand and gravel separators often experience clogging when the material contains a large number of particles close to the screen aperture size. High moisture content in the material can also cause it to adhere to the screen, leading to blockages. This blockage prevents material from passing through the screen, significantly reducing screening efficiency. Furthermore, material accumulation inside the drum increases friction and wear between the drum and the screen, ultimately shortening their lifespan. Therefore, this paper proposes a sand and gravel separation device to address these issues. During the screening and separation of sand and gravel, the sand to be screened is first... Material is fed into the drum screen 9 through the feed hopper 32. Then, the first motor 8 is started, which causes the rotating rod 6 to drive the roller 7 to rotate, thereby forcing the drum screen 9 to rotate as well. Through the high-speed rotation of the drum screen 9, sand and gravel are separated inside the drum under the action of centrifugal force. Since the particle size of sand and gravel is different, sand will fall through the screen holes into the sand collection box 26 for collection, while gravel will be intercepted inside the drum screen 9 and finally discharged through the arc-shaped guide hopper 30. This achieves the separation and classification of sand and gravel, thereby ensuring that each material can be fully utilized and improving the overall material utilization rate.

[0031] During the sand and gravel separation process, the second motor 13 operates, causing the rotating disk 14 to drive the eccentric rod 15 to rotate. With the cooperation of the second spring 20, the eccentric rod 15 forces the pendulum 18 to reciprocate by striking the fixed ring 11 on the outer wall of the drum screen 9. This knocks down small stones and other materials blocking the screen holes. The vibration generated by the striking effectively prevents small stones and other materials from clogging the screen holes, keeping them clear and ensuring that materials can pass smoothly through the screen, thus improving screening efficiency. During the sand and gravel separation process, the air injection pipe 2... 5. An external air pump is connected. Through the operation of the air pump, gas is introduced into the hollow tube 23 through the air injection pipe 25. Finally, the gas is sprayed onto the drum screen 9 at a certain speed and pressure through the air outlet 24. This can blow away fine particles and wet materials attached to the screen holes, thereby effectively preventing screen hole blockage. The gas injection can disturb the material layer on the drum screen 9, making the material looser and helping the material pass through the screen holes, thus improving screening efficiency. For materials with high moisture content, the gas injection can also play a certain drying role, reducing the moisture content of the material and further reducing the risk of screen hole blockage.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A sand and gravel separation device, characterized in that: Includes a base (1), on which four fixed sleeves (2) are fixedly connected. A first spring (3) is fixedly connected to the inner wall of the bottom end of each fixed sleeve (2), and a movable rod (4) is fixedly connected to the top of the first spring (3). A triangular seat (5) is fixedly connected to the top of each of the four movable rods (4). A rotating rod (6) is rotatably installed on the two triangular seats (5) on the same side. Rollers (7) are fitted on both ends of the rotating rod (6), and the four rollers (7) are correspondingly arranged in the triangular seats (5). A first motor (8) is installed on the side wall of the two triangular seats (5) on the same end. The output end of the first motor (8) is connected to one end of the rotating rod (6). A drum screen (9) is installed on the four rollers (7). Two limiting plates are fixedly connected to both ends of the drum screen (9). 10), and the two limiting plates (10) are located on both sides of the roller (7), a fixing ring (11) is fixedly connected to the middle position of the drum screen (9), a support frame (12) is fixedly connected to the base (1), a second motor (13) is installed at the top of the support frame (12), a rotating disk (14) is installed at the output end of the second motor (13), an eccentric rod (15) is fixed on the rotating disk (14), a support plate (16) is fixedly connected to the side wall of the support frame (12), a fixed seat (17) is installed on the support plate (16), a pendulum (18) is hinged in the fixed seat (17), a rectangular plate (19) is fixedly connected to the side wall of the support plate (16), and a second spring (20) is fixed between the rectangular plate (19) and the pendulum (18).

2. The sand and gravel separation device according to claim 1, characterized in that: Four support columns (21) are fixedly connected to the base (1). Each support column (21) has a sleeve (22) fixedly connected to its top. Two sleeves (22) on the same side are fitted with hollow tubes (23). The two hollow tubes (23) are located on both sides of the striking component. Each hollow tube (23) is connected to multiple air nozzles (24). One end of each hollow tube (23) is connected to an air injection tube (25).

3. The sand and gravel separation device according to claim 1, characterized in that: Two uprights (31) are fixedly connected to the base (1), and a feed hopper (32) is fixedly connected to the two uprights (31). An arc-shaped guide hopper (30) is fixedly connected between two support columns (21) away from the feed hopper (32).

4. The sand and gravel separation device according to claim 1, characterized in that: A sand collection box (26) is fixedly connected to the base (1), and the sand collection box (26) is located directly below the drum screen (9).

5. The sand and gravel separation device according to claim 4, characterized in that: Both sides of the port of the sand collection box (26) are fixed with baffle plates (27), and the two baffle plates (27) are located on both sides of the drum screen (9).

6. The sand and gravel separation device according to claim 4, characterized in that: The sand collection box (26) has a sand discharge port on one side, and a limit slide rail (28) is fixedly connected to both sides of the sand discharge port. The two limit slide rails (28) are fitted with a sealing cover plate (29).

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