Dense medium separation equipment

Abstract

The utility model discloses dense medium separation equipment which comprises a tank body, supporting legs are fixedly connected to the left end and the right end of the lower surface of the tank body, a filter plate is arranged in the tank body, a plurality of filter holes are evenly formed in the upper surface of the filter plate, and rectangular plates are arranged on the left side and the right side of the upper surface of the filter plate. According to the dense medium separation equipment, through cooperation of the tank body, the supporting legs, the filter plate, the filter holes, a rectangular plate, a cross block, a motor, a transmission unit, a material taking groove and a baffle, the rectangular plate can generate obliquely upward acting force, at the moment, a compression spring starts to compress a rotating rod to slide upwards on the outer wall of a square rod, and a gap between the rectangular plate and the filter plate can be enlarged to skip stuck coal briquettes; therefore, a high-load operation state caused by the fact that resistance borne by the output shaft is greatly increased during operation of the motor is prevented, the burning loss probability of the motor during operation can be greatly reduced, and the stability of separation equipment during operation can be enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine sorting, in particular to heavy medium sorting equipment. Background Art

[0002] Heavy medium refers to a medium with a density greater than 1g / cm3. There are many types of heavy media, and coal is one of the heavy media. Coal mines are areas where humans mine coal resources in coal-rich mining areas. They are generally divided into underground coal mines and open-pit coal mines. According to the degree of coalification, coal can be divided into four categories: peat, lignite, bituminous coal and anthracite. In order to improve the poor use effect of some sorting machines used in coal mines, the main reason is that the structure used by the sorting machine is relatively complex and inconvenient to operate, which leads to reduced efficiency of the sorting machine. The patent with application number 202221475822.1 in the public technology has been applied, including a hollow column, a circular ring block is provided on the top of the hollow column, a cross block is fixed inside the circular ring block, and two symmetrical arc blocks are fixed on the bottom of the cross block and the outer wall of the circular ring block. Although the coal dust or foreign matter mixed in the coal can be separated, it ensures that the qualified coal blocks are sorted out, which effectively improves the efficiency of the sorting machine.

[0003] However, in actual use, there are still certain minor drawbacks. Since the coal blocks to be screened have various shapes, and basically each coal block has sharp corners, the coal blocks can be easily temporarily stuck above the sieve holes. In the sorting equipment in the public technology, the rectangular plate that scrapes the coal blocks fits against the filter plate, and the rectangular plate during revolution is easily stopped by the stuck coal. At this time, the motor driving the rectangular plate is in an overloaded operating state, which can easily cause the driving motor to burn out. The stability of the sorting equipment during operation needs to be strengthened. Utility Model Content

[0004] The purpose of the utility model is to provide a heavy medium sorting equipment to solve the problem that the shapes of coal blocks to be screened are various and basically each coal block has a sharp corner, which will cause the coal blocks to be temporarily stuck above the sieve holes very easily. In the sorting equipment in the public technology, the rectangular plate for scraping the coal blocks fits with the filter plate, and the rectangular plate during revolution is easily stopped by the stuck coal. At this time, the motor driving the rectangular plate is in an overloaded operating state, which can easily cause the burning of the driving motor. The stability of the sorting equipment during operation needs to be strengthened.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heavy medium separation device, comprising a tank body, the left and right ends of the lower surface of the tank body are fixedly connected to legs, a filter plate is arranged inside the tank body, a plurality of filter holes are evenly opened on the upper surface of the filter plate, rectangular plates are arranged on the left and right sides of the upper surface of the filter plate, a cross block is fixedly connected to the top of the inner top of the tank body, a motor is fixedly connected to the center of the upper surface of the cross block, a material taking trough is opened on the right side of the outer wall of the tank body, a baffle is arranged on the outer side of the material taking trough, and the motor is connected to the rectangular plate through a transmission unit;

[0006] The transmission unit comprises a rotating drum, a rotating rod, a square rod, a ball and a compression spring;

[0007] The rotating drum is fixedly connected to the bottom end of the motor, and the rotating drum is rotatably connected to the cross block through a sealed bearing. A rotating rod is provided at the lower part of the interior of the rotating drum, and the bottom end of the outer wall of the rotating rod is fixedly connected to the contact surface of the rectangular plate. A square rod is provided inside the rotating rod, and the top of the square rod is fixedly connected to the contact surface of the rotating drum. The outer wall of the square rod is successively annularly slidably clamped with a plurality of ball bearings from bottom to top, and the ball bearings are fitted with the inner wall of the rotating rod. A compression spring is sleeved on the upper part of the outer wall of the square rod, and the upper and lower ends of the compression spring are respectively fixedly connected to the contact surfaces of the rotating drum and the rotating rod.

[0008] Preferably, a storage box is placed below the tank body.

[0009] Preferably, a vibration unit is provided on the outer side of the filter plate;

[0010] The vibration unit includes a slide groove, a vertical rod, a rubber strip, a through groove, a convex block, a vertical rod, a reciprocating groove, a bracket, a first groove wheel, a second groove wheel and a belt;

[0011] The cam is provided with a plurality of camshafts, each of which is connected to a pair of camshafts, and the camshafts are connected to the plurality of camshafts respectively.

[0012] Preferably, a heat dissipation unit is provided at the top of the vertical rod;

[0013] The heat dissipation unit comprises a disc, a toothed ring, a toothed column, a crossbar, a vertical plate and a fan blade;

[0014] The disc is fixed to the top of the vertical rod, a toothed ring is fixed to the upper surface of the disc, a toothed column is meshingly connected to the upper right side of the toothed ring, a cross bar is fixed to the center of the right surface of the toothed column, a vertical plate is rotatably connected to the outer wall of the cross bar, the vertical plate is fixedly connected to the contact surface of the tank body, and a fan blade is fixed to the right end of the cross bar.

[0015] Preferably, a shell is fixedly connected to the left surface of the vertical plate, and the shell is rotatably connected to the vertical rod through a dustproof bearing.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] Through the coordination among the tank body, legs, filter plate, filter hole, rectangular plate, cross block, motor, transmission unit, material trough and baffle, the coal blocks to be sorted can be appropriately put into the space above the internal filter plate of the tank body through the space above the cross block, and then the motor can be started to push the coal blocks to move above the filter plate, and those coal blocks smaller than the inner diameter of the filter hole will fall downward. During the sorting process, some coal blocks are stuck in the filter hole and the contact force with the rectangular plate increases. Because the bottom end of the rectangular plate is a conical structure, the rectangular plate will generate an oblique upward force. At this time, the compression spring begins to compress the rotating rod to slide upward on the outer wall of the square rod, which can increase the gap between the rectangular plate and the filter plate to skip the stuck coal blocks, so as to prevent the high-load operation state caused by the increased resistance on the output shaft when the motor is running, which can greatly reduce the probability of burning during the operation of the motor, so that the stability performance of the sorting equipment during operation can be enhanced.

[0018] Through the cooperation among the tank body, legs, filter plate, filter holes, rectangular plate, cross block, motor, transmission unit, vibration unit, material trough and baffle, the second groove wheel can rotate together with the rotating drum, during which the first groove wheel and the vertical rod can be rotated through the transmission of the belt. Because the reciprocating groove under the outer wall of the vertical rod is connected to the sliding block, the block and the filter plate can move up and down intermittently. During this process, when the filter plate moves up and down indirectly, the efficiency of coal blocks passing through the filter holes can be improved, so as to improve the sorting efficiency of coal blocks by the sorting equipment.

[0019] Through the coordination among the tank body, legs, filter plate, filter holes, rectangular plate, cross block, motor, transmission unit, heat dissipation unit, material trough and baffle, the disc and the tooth ring can rotate synchronously during the rotation of the vertical rod. During this period, the tooth ring can perform meshing transmission on the tooth column, so that the tooth column, cross bar and fan blade can rotate concentrically. After the fan blade rotates, the air on both sides thereof flows from left to right, so that the airflow can blow the running motor, and the heat dissipation effect can be provided for the motor, so that it can be kept in working state for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the accompanying drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and the originals and elements are not necessarily drawn to scale.

[0021] Figure 1 It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 for Figure 1 Schematic diagram of the connection structure of the motor, rectangular plate and rotating drum;

[0023] Figure 3 for Figure 1 Schematic diagram of the connection structure of the tank, filter plate and vertical rod;

[0024] Figure 4 for Figure 1 Schematic diagram of the connection structure of the tank body, crossbar and fan blades;

[0025] Figure 5 for Figure 2 Top view of rotating rod and square rod;

[0026] Figure 6 for Figure 1 Left side view of the rectangular plate.

[0027] In the figure: 1, tank body, 2, support leg, 3, filter plate, 4, filter hole, 5, rectangular plate, 6, cross block, 7, motor, 8, drum, 9, rotating rod, 10, square rod, 11, ball, 12, compression spring, 13, slide groove, 14, vertical rod, 15, rubber strip, 16, through groove, 17, bump, 18, vertical rod, 19, reciprocating groove, 20, bracket, 21, first groove wheel, 22, second groove wheel, 23, belt, 24, disc, 25, toothed ring, 26, toothed column, 27, cross bar, 28, vertical plate, 29, fan blade, 30, shell, 31, material trough, 32, baffle, 33, storage box. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principles and processes, and no longer explains the electrical control.

[0030] Since the coal blocks to be screened have various shapes, basically every coal block has sharp corners, which will cause the coal blocks to be temporarily stuck above the sieve holes very easily. In the sorting equipment in the public technology, the rectangular plate that scrapes the coal blocks fits with the filter plate. During the revolution, the rectangular plate is easily stopped by the stuck coal. At this time, the motor driving the rectangular plate is in an overloaded operating state, which can easily cause the driving motor to burn out. The stability of the sorting equipment during operation needs to be strengthened.

[0031] The utility model provides a heavy medium sorting equipment. Through the cooperation among a tank body, supporting legs, filter plates, filter holes, rectangular plates, cross blocks, motors, transmission units, material taking troughs and baffles, an appropriate amount of coal blocks to be sorted can be put into the upper part of the internal filter plate of the tank body through the space above the cross blocks. Then, the rectangular plates of the motor are started to push the coal blocks to move them above the filter plates. Those coal blocks smaller than the inner diameter of the filter holes will fall downward. During the sorting process, some coal blocks are stuck in the filter holes and the contact force with the rectangular plates increases. Since the bottom end of the rectangular plates is a conical structure, the rectangular plates will generate an oblique upward force. At this time, the compression spring starts to compress the rotating rod to slide upward on the outer wall of the square rod, which can increase the gap between the rectangular plate and the filter plate to jump over the stuck coal blocks, so as to prevent the high-load operation state caused by the greatly increased resistance on the output shaft during the operation of the motor. The burning probability of the motor during operation can be greatly reduced, so that the stability performance of the sorting equipment during operation can be enhanced.

[0032] See also Figure 1-6The utility model provides a technical solution: a heavy medium separation device, including a tank body 1, the left and right ends of the lower surface of the tank body 1 are fixedly connected with supporting legs 2, a filter plate 3 is arranged inside the tank body 1, a plurality of filter holes 4 are evenly opened on the upper surface of the filter plate 3, rectangular plates 5 are arranged on the left and right sides of the upper surface of the filter plate 3, a cross block 6 is fixedly connected to the top of the inner top of the tank body 1, a motor 7 is fixedly connected to the center of the upper surface of the cross block 6, a material taking trough 31 is opened on the right side of the outer wall of the tank body 1, a baffle 32 is arranged on the outer side of the material taking trough 31, the motor 7 is connected to the rectangular plate 5 through a transmission unit, and the transmission unit includes a rotating drum 8, a rotating rod 9, and a square rod 10. , balls 11 and compression springs 12, the rotating drum 8 is fixedly connected to the bottom end of the motor 7, and the rotating drum 8 is rotatably connected to the cross block 6 through a sealed bearing. A rotating rod 9 is provided at the lower part of the interior of the rotating drum 8, and the bottom end of the outer wall of the rotating rod 9 is fixedly connected to the contact surface of the rectangular plate 5. A square rod 10 is provided inside the rotating rod 9, and the top of the square rod 10 is fixedly connected to the contact surface of the rotating drum 8. The outer wall of the square rod 10 is successively annularly slidably clamped with a plurality of balls 11 from bottom to top, and the balls 11 are in contact with the inner wall of the rotating rod 9. A compression spring 12 is sleeved on the upper part of the outer wall of the square rod 10, and the upper and lower ends of the compression spring 12 are respectively fixedly connected to the contact surfaces of the rotating drum 8 and the rotating rod 9.

[0033] In the specific implementation process, it is worth pointing out that the power line of the motor 7 is connected to the external power supply device, the output shaft of the motor 7 is vertically and concentrically fixedly connected to the rotating drum 8, the inner wall of the rotating drum 8 and the outer wall of the rotating rod 9 are matched with each other, the ball 11 can roll but cannot be separated from the square rod 10, the coefficient of the compression spring 12 is 1-10N / CM, and the coal blocks to be sorted are appropriately put into the upper part of the internal filter plate 3 of the tank body 1 through the space above the cross block 6, and then the motor 7 is started to rotate the rotating drum 8, the square rod 10 and the rotating rod 9, and the two rectangular plates 5 will rotate around the rotating rod 9 as the center, and the rectangular plates 5 can push the coal blocks to move above the filter plate 3, and those smaller than the inner diameter of the filter hole 4 The coal blocks that are larger than the filter holes 4 will fall downwards, and the coal blocks that are larger than the filter holes 4 will remain on the top of the filter plate 3, completing the sorting operation of the coal blocks. During the sorting process, some coal blocks are stuck in the filter holes 4 and the contact force with the rectangular plate 5 increases. Because the bottom end of the rectangular plate 5 is a conical structure, after the force with the coal blocks increases, the rectangular plate 5 will generate an oblique upward force. At this time, the compression spring 12 opens the compression spring rotating rod 9 to slide upward on the outer wall of the square rod 10, which can increase the gap between the rectangular plate 5 and the filter plate 3 to jump over the stuck coal blocks, so as to prevent the motor 7 from operating in a high-load state due to the greatly increased resistance on the output shaft when the motor 7 is running, which can greatly reduce the probability of burning of the motor 7 during operation, so that the stability performance of the sorting equipment during operation can be enhanced.

[0034] Furthermore, a storage box 33 is placed below the tank body 1 .

[0035] In the specific implementation process, it is worth pointing out that the storage box 33 can collect and store the smaller coal blocks that fall from the tank body 1. Of course, the storage box 33 can also be replaced by a conveyor belt to move the fallen small coal blocks to other locations.

[0036] Furthermore, a vibration unit is provided on the outer side of the filter plate 3, and the vibration unit includes a slide 13, a vertical rod 14, a rubber strip 15, a through groove 16, a convex block 17, a vertical rod 18, a reciprocating groove 19, a bracket 20, a first groove wheel 21, a second groove wheel 22 and a belt 23. The slide 13 is opened above the inner wall of the tank body 1, and the two vertical rods 14 are respectively inserted into the left and right ends of the upper surface of the filter plate 3, and the upper and lower ends of the vertical rod 14 are fixedly connected to the contact surface of the tank body 1. The inner top of the slide 13 is fixedly connected to a rubber strip 15, and the rubber strip 15 is fixedly connected to the contact surface of the filter plate 3. The slide 1 A through groove 16 is fixedly connected to the left side of the inner wall of the tank body 3, a convex block 17 is arranged inside the through groove 16, a vertical rod 18 is inserted into the upper surface of the convex block 17, and the vertical rod 18 is connected with the convex block 17 by sliding engagement through a reciprocating groove 19. A bracket 20 is fixedly connected to the left side of the outer wall of the tank body 1, and the bracket 20 is rotatably connected with the vertical rod 18 through a dustproof bearing. A first groove wheel 21 is fixedly sleeved on the upper part of the outer wall of the vertical rod 18, and a second groove wheel 22 is arranged on the right side of the first groove wheel 21. The inner wall of the second groove wheel 22 is fixedly connected to the outer wall of the rotating drum 8, and the second groove wheel 22 is rotatably connected with the first groove wheel 21 through a belt 23.

[0037] During the specific implementation process, it is worth pointing out that the filter plate 3 can slide up and down inside the slide groove 13, the outer wall of the vertical rod 14 is gapped with the through-surface of the filter plate 3, the rubber strip 15 is made of rubber material and has a certain flexibility, the protrusion 17 can slide up and down inside the through groove 16, and the inner wall of the protrusion 17 is connected with the vertical rod 18 through the reciprocating groove 19. The belt 23 is gapped with the through-surface of the tank body 1, and the second groove wheel 22 can rotate together with the rotating drum 8. During this period, the first groove wheel 21 and the vertical rod 18 can be rotated through the transmission of the belt 23. Because the reciprocating groove 19 under the outer wall of the vertical rod 18 is connected to the protrusion 17 by sliding and snapping, the protrusion 17 and the filter plate 3 can intermittently move up and down. During this process, when the filter plate 3 moves up and down indirectly, the efficiency of coal blocks passing through the filter hole 4 can be improved, so as to improve the coal block sorting efficiency of the sorting equipment.

[0038] Furthermore, a heat dissipation unit is provided at the top of the vertical rod 18, and the heat dissipation unit includes a disc 24, a toothed ring 25, a toothed column 26, a cross bar 27, a vertical plate 28 and a fan blade 29. The disc 24 is fixedly connected to the top of the vertical rod 18, the upper surface of the disc 24 is fixedly connected to the toothed ring 25, the upper right side of the toothed ring 25 is meshingly connected to the toothed column 26, the right surface center of the toothed column 26 is fixedly connected to the cross bar 27, the outer wall of the cross bar 27 is rotatably connected to the vertical plate 28, the vertical plate 28 is fixedly connected to the contact surface of the tank body 1, and the right end of the cross bar 27 is fixedly connected to the fan blade 29.

[0039] In the specific implementation process, it is worth pointing out that the cross bar 27 is rotatably connected to the vertical plate 28 through a dustproof bearing, and the disc 24 and the toothed ring 25 can rotate synchronously during the rotation of the vertical bar 18. During this period, the toothed ring 25 can mesh with the toothed column 26, so that the toothed column 26, the cross bar 27 and the fan blade 29 can rotate concentrically. After the fan blade 29 rotates, the air on both sides thereof flows from left to right, so that the airflow can blow the running motor 7, and provide a heat dissipation effect for the motor 7, so that it can be kept in a working state for a long time.

[0040] Furthermore, a shell 30 is fixedly connected to the left surface of the vertical plate 28, and the shell 30 is rotatably connected to the vertical rod 18 through a dustproof bearing.

[0041] In the specific implementation process, it is worth pointing out that the housing 30 can prevent foreign matter from entering into the interior thereof, so as to facilitate the stable transmission of the tooth ring 25 to the tooth column 26 .

[0042] In the present utility model, unless otherwise clearly stipulated and limited, the terms "installation", "setting", "connection", "fixation", "screw-on" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present utility model according to the specific circumstances.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heavy medium separation device, comprising a tank body (1), characterized in that: The left and right ends of the lower surface of the tank body (1) are fixedly connected to supporting legs (2); a filter plate (3) is provided inside the tank body (1); a plurality of filter holes (4) are evenly provided on the upper surface of the filter plate (3); rectangular plates (5) are provided on the left and right sides of the upper surface of the filter plate (3); a cross block (6) is fixedly connected to the top of the inner surface of the tank body (1); a motor (7) is fixedly connected to the center of the upper surface of the cross block (6); a material taking trough (31) is provided on the right side of the outer wall of the tank body (1); a baffle (32) is provided on the outer side of the material taking trough (31); and the motor (7) is connected to the rectangular plate (5) via a transmission unit; The transmission unit comprises a rotating drum (8), a rotating rod (9), a square rod (10), a ball (11) and a compression spring (12); The rotating drum (8) is fixedly connected to the bottom end of the motor (7). The rotating drum (8) is rotatably connected to the cross block (6) through a sealed bearing. A rotating rod (9) is provided at the bottom of the rotating drum (8). The bottom end of the outer wall of the rotating rod (9) is fixedly connected to the contact surface of the rectangular plate (5). A square rod (10) is provided inside the rotating rod (9). The top end of the square rod (10) is fixedly connected to the contact surface of the rotating drum (8). The outer wall of the square rod (10) is sequentially annularly slidably clamped with a plurality of balls (11) from bottom to top. The balls (11) are in contact with the inner wall of the rotating rod (9). A compression spring (12) is sleeved on the upper part of the outer wall of the square rod (10). The upper and lower ends of the compression spring (12) are respectively fixedly connected to the contact surfaces of the rotating drum (8) and the rotating rod (9).

2. A heavy medium separation device according to claim 1, characterized in that: A storage box (33) is placed below the tank body (1).

3. A heavy medium separation device according to claim 1, characterized in that: A vibration unit is provided on the outer side of the filter plate (3); The vibration unit comprises a slide groove (13), a vertical rod (14), a rubber strip (15), a through groove (16), a convex block (17), a vertical rod (18), a reciprocating groove (19), a bracket (20), a first groove wheel (21), a second groove wheel (22) and a belt (23); The slide groove (13) is opened above the inner wall of the tank body (1), and the two vertical rods (14) are respectively inserted into the left and right ends of the upper surface of the filter plate (3), and the upper and lower ends of the vertical rods (14) are fixedly connected to the contact surface of the tank body (1). The inner top of the slide groove (13) is fixedly connected to a rubber strip (15), and the rubber strip (15) is fixedly connected to the contact surface of the filter plate (3). The left side of the inner wall of the slide groove (13) is fixedly connected to a through groove (16), and a convex block (17) is provided inside the through groove (16). The upper surface of the convex block (17) is inserted with a vertical rod (18). ), the vertical rod (18) is slidably connected to the protrusion (17) through a reciprocating groove (19), the bracket (20) is fixedly connected to the left side of the outer wall of the tank body (1), the bracket (20) is rotatably connected to the vertical rod (18) through a dustproof bearing, a first groove wheel (21) is fixedly sleeved on the upper part of the outer wall of the vertical rod (18), a second groove wheel (22) is provided on the right side of the first groove wheel (21), the inner wall of the second groove wheel (22) is fixedly connected to the outer wall of the rotating drum (8), and the second groove wheel (22) is rotatably connected to the first groove wheel (21) through a belt (23).

4. A heavy medium separation device according to claim 3, characterized in that: A heat dissipation unit is provided at the top end of the vertical rod (18); The heat dissipation unit comprises a circular disk (24), a toothed ring (25), a toothed column (26), a crossbar (27), a vertical plate (28) and a fan blade (29); The disc (24) is fixedly connected to the top of the vertical rod (18); a toothed ring (25) is fixedly connected to the upper surface of the disc (24); a toothed column (26) is meshingly connected to the upper right side of the toothed ring (25); a cross bar (27) is fixedly connected to the center of the right surface of the toothed column (26); an outer wall of the cross bar (27) is rotatably connected to a vertical plate (28); the vertical plate (28) is fixedly connected to the contact surface of the tank body (1); and a fan blade (29) is fixedly connected to the right end of the cross bar (27).

5. A heavy medium separation device according to claim 4, characterized in that: A shell (30) is fixedly connected to the left surface of the vertical plate (28), and the shell (30) is rotatably connected to the vertical rod (18) via a dustproof bearing.

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