Device for screening and filtering impurities in coal

Abstract

The invention relates to the technical field of coal processing equipment, in particular to a coal impurity screening and filtering device which comprises a screening and filtering base, vertical beam frames are fixedly installed in the centers of the two sides of the top end face of the screening and filtering base through welding, and an impurity collecting assembly is arranged between the two vertical beam frames; a filtering machine box is fixedly installed at the top ends of the two vertical beam frames and located over the top of the impurity collecting assembly, a plurality of filtering holes are formed in the end face of the bottom of the inner side of the filtering machine box, a material overturning assembly is arranged in the center of the interior of the filtering machine box, and a material falling assembly is arranged over the top of the filtering machine box. According to the device for screening and filtering the impurities in the coal, the discharging position of coal materials can be adjusted according to use requirements, and therefore the situation that the falling coal materials are blocked is effectively avoided; and moreover, the coal materials can be conveniently turned and shifted, so that impurities carried by the coal materials are stripped, and the impurities are effectively collected.

Description

Technical Field

[0001] The invention relates to the technical field of coal processing equipment, and in particular to a device for filtering impurities from coal. Background Art

[0002] The coal mined from the mine needs to be processed by a filter screen to filter out the impurities in the coal. In the filtering process, a device for filtering impurities in the coal is usually used;

[0003] The device for filtering impurities from coal in the prior art is inconvenient to discharge coal materials during use, which causes the falling coal materials to easily accumulate and become blocked. The blocked coal materials are inconvenient to filter out impurities, which affects the efficiency of impurity screening. Therefore, a device for filtering impurities from coal is proposed to address the above problem. Summary of the invention

[0004] The problem solved by the present invention is to provide a device for screening impurities in coal, which can adjust the feeding position of coal materials according to the use requirements, so as to effectively avoid the blockage of the falling coal materials; and it can facilitate the turning of coal materials to separate the impurities carried by the coal materials, thereby facilitating the impurity screening of the coal materials and effectively collecting the impurities.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A device for filtering impurities from coal, comprising:

[0007] A sieve filter base, wherein vertical beam frames are fixedly installed at the center of both sides of the top end surface of the sieve filter base by welding, and an impurity collection component is arranged between the two vertical beam frames, a filter box is fixedly installed at the top of the two vertical beam frames, and the filter box is located directly above the top of the impurity collection component, a plurality of filter holes are opened on the inner bottom end surface of the filter box, a material turning component is arranged at the center of the interior of the filter box, and a material dropping component is arranged directly above the top of the filter box;

[0008] The guide rail bracket, the blanking assembly includes a guide rail bracket, the two guide rail brackets are respectively welded and installed on the two ends of the top of the filter box, and a first electric guide rail is fixedly installed at the center of the top of the guide rail bracket, a first guide rail slide is installed at the center of the top of the first electric guide rail, and a load-bearing arm is installed at the top of the first guide rail slide by welding, a blanking barrel is arranged between the two load-bearing arms, and a telescopic sleeve is connected and installed at the center of the bottom end face of the blanking barrel, and a discharge barrel is connected and installed at the bottom end face of the telescopic sleeve.

[0009] Furthermore, locking screw plates are installed on the outer walls of the blanking barrel by welding, and a locking stud is installed in the center of the end face of the locking screw plate. A locking screw hole is opened in the center of the top of the locking top seat, and the bottom end of the locking stud passes through the locking screw plate and is fixedly connected with the locking screw hole by thread. It is convenient to fix the locking screw plate on the top of the locking top seat through the locking stud, so that the blanking barrel is fixedly installed between the load-bearing arms, thereby improving the convenience of installation and connection and the firmness and tightness of the connection.

[0010] Furthermore, connecting cross plates are welded around the bottom end surface of the blanking barrel, and mounting hangers are welded on the outer sides of the four connecting cross plates, a second electric guide rail is fixedly installed at the center of the bottom end of the mounting hanger, and a second guide rail slide is installed at the outer side of the bottom of the second electric guide rail, the rotation angle of the second guide rail slide on the outer side of the second electric guide rail is 0-270°, a mounting partition is fixedly installed at the center of the bottom end of the second guide rail slide, and an electric cylinder is fixedly installed at the center of the end surface of the mounting partition, and one end of the electric cylinder A piston push rod is installed in the center, and a traction sleeve is welded and installed on the other end of the piston push rod. An anti-slip plate is fixedly installed on one side of the outer wall of the discharge barrel, and a traction rod is fixedly installed between the two anti-slip plates. The traction sleeve is sleeved and installed on the outside of the traction rod, and the rotation angle of the traction sleeve on the outside of the traction rod is 0-270°; as the second guide rail slide is rotated and adjusted, and the electric cylinder and the piston push rod can adjust the discharging position of the telescopic sleeve and the discharge barrel, the material discharge is convenient, the uniformity of the material discharge is effectively improved, and it is beneficial to improve the filtration quality.

[0011] Furthermore, the material turning assembly includes a material turning motor, the material turning motor is fixedly installed on one side of the end face of the filter case, and a driving pulley is fixedly installed on the outer side of the motor shaft of the material turning motor, and limiting columns are fixedly installed on both sides of one end of the driving pulley, and a first transmission belt is sleeved and installed on the outer side of the driving pulley, and a first follower shaft and a second follower shaft are respectively plugged and installed on both sides of the inside of the filter case, one end of the first follower shaft passes through the filter case and is connected to two first follower pulleys, and one of the first follower pulleys is connected to the driving pulley through the first transmission belt, and the second One end of the follower shaft passes through the filter box and is connected to a second follower pulley, the outer side of the second follower pulley is sleeved with a second transmission belt, and the other side of the second transmission belt is sleeved with the outer side of another first follower pulley, a turning roller is fixedly installed in the center of the outer wall of the first follower shaft and the second follower shaft, and a number of material shifting support rods are installed on both sides of the outer wall of the turning roller by welding, the material shifting support rod on the outer side of the first follower shaft and the material shifting support rod on the outer side of the second follower shaft are staggered; the turning assembly is used to facilitate the turning and stirring of the coal material, thereby improving the filtering effect.

[0012] Furthermore, a limit frame is provided on the bottom side of the material turning motor, and one end of the limit frame is fixedly connected to the end face of the filter box, the limit frame is located at the outer end of the driving pulley and has two limit grooves, and one end of the two limit columns are respectively inserted and installed in the two limit grooves, and a limiter is fixedly installed in the center of the bottom end of the limit frame, and the limiter is electrically connected to the material turning motor; it can have a limiting effect on the rotation of the motor shaft of the material turning motor.

[0013] Furthermore, two transmission through holes are provided in the center of both ends of the filter case, and transmission bearings are fixedly installed inside the transmission through holes. Both ends of the first follower shaft and the second follower shaft pass through the transmission through holes, and the outer walls of the first follower shaft and the second follower shaft are rotatably connected to the transmission bearings at corresponding positions; this facilitates the rotation of the first follower shaft and the second follower shaft inside the transmission bearing, effectively improving the stability of the transmission.

[0014] Furthermore, the impurity collecting assembly includes a collecting shell, which is arranged between two vertical beams, and the collecting shell is located directly below the bottom of the filter hole, the inner bottom of the collecting shell is an inclined surface structure, and connecting cross seats are fixedly installed all around the outer wall of the collecting shell, and the other end of the connecting cross seat is fixedly connected to the vertical beam, a flip connecting rod is plugged and installed in the center of the top side of one end of the collecting shell, and the two ends of the flip connecting rod are rotatably connected to the collecting shell, a material baffle plate is fixedly installed on the outer side of the flip connecting rod, and the bottom end of the material baffle plate is connected to the inner wall of the collecting shell, a flip handle is provided on one side of the outside of the collecting shell, and one end of the flip connecting rod passes through the collecting shell and is fixedly connected to the flip handle; it is convenient to collect and store impurities dropped during filtration through the impurity collecting assembly.

[0015] Furthermore, two lightweight through holes are provided on both sides of the end surface of the sieve base, and load-bearing feet are fixedly installed on all four sides of the bottom end surface of the sieve base by welding, and a non-slip bottom pad is fixedly installed in the center of the bottom end surface of the load-bearing feet; the load-bearing feet and the non-slip bottom pad can provide a firm supporting effect on the sieve base, making the overall structure more stable.

[0016] The beneficial effects of the present invention are as follows: the device for filtering impurities in coal has a firm overall support and good stability; when in use, the unloading position of the coal material can be adjusted according to the use requirements by setting the dropping component, so that the coal material can be unloaded at different positions, thereby effectively avoiding the blockage of the falling coal material; and, by setting the turning component, the coal material can be easily turned and rotated, so that the impurities carried by the coal material can be quickly peeled off, which is convenient for impurity screening of the coal material and effectively improves the efficiency of impurity filtering; and the impurities can be effectively collected through the impurity collecting component, which improves the convenience of impurity collection and processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a first overall structural schematic diagram of the present invention;

[0018] Figure 2 It is a second overall structural schematic diagram of the present invention;

[0019] Figure 3 It is the overall front view of the present invention;

[0020] Figure 4 for Figure 3 Schematic cross-sectional view of AA in the figure;

[0021] Figure 5 It is an overall side view of the present invention;

[0022] Figure 6 It is an overall top view of the present invention;

[0023] Figure 7 for Figure 6 A schematic cross-sectional view of the middle BB;

[0024] Figure 8 for Figure 6 Schematic cross-sectional view of CC.

[0025] Legend:

[0026] 1. Screening base; 2. Vertical beam frame; 3. Filter chassis; 4. Filter hole; 5. Turning assembly; 6. Dropping assembly; 7. Impurity collection assembly; 8. Load-bearing support foot; 51. Turning motor; 52. Driving pulley; 53. Limiting frame; 54. Limiter; 55. Limiting groove; 56. Limiting column; 57. First transmission belt; 58. First follower pulley; 59. First follower shaft; 510. Second follower shaft; 511. Second follower pulley; 512. Second transmission belt; 513. Turning roller; 514. Material-digging support rod; 61. Guide rail support Seat; 62, first electric guide rail; 63, first guide rail slide; 64, load-bearing arm; 65, locking top seat; 66, discharge barrel; 67, connecting cross plate; 68, installation hanger; 69, second electric guide rail; 610, second guide rail slide; 611, installation partition; 612, electric cylinder; 613, piston push rod; 614, telescopic sleeve; 615, traction rod; 616, discharge barrel; 617, traction sleeve; 71, collection casing; 72, connecting cross seat; 73, flip connecting rod; 74, baffle plate; 75, flip handle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Specific examples are given below.

[0029] See also Figures 1 to 8 , a device for filtering impurities from coal, comprising:

[0030] A screening base 1, vertical beams 2 are fixedly installed in the center of both sides of the top end surface of the screening base 1 by welding, and an impurity collecting assembly 7 is arranged between the two vertical beams 2, and the impurity collecting assembly 7 can be stably and firmly supported by the vertical beams 2; a filter box 3 is fixedly installed on the top of the two vertical beams 2, and the filter box 3 is located directly above the top of the impurity collecting assembly 7, and the filter box 3 can be stably and firmly supported by the vertical beams 2; a plurality of filter holes 4 are provided on the inner bottom end surface of the filter box 3, which facilitates the impurities in the coal to fall through the filter holes; a turning assembly 5 is arranged in the center of the interior of the filter box 3, and the turning assembly 5 is convenient for turning and shaking off the coal material, thereby effectively improving the filtering effect; a dropping assembly 6 is arranged directly above the top of the filter box 3, and the dropping assembly 6 can facilitate the coal material to be evenly discharged, thereby avoiding the influence of uneven discharge on the filtering effect;

[0031] The guide rail bracket 61, the blanking assembly 6 includes a guide rail bracket 61, two guide rail brackets 61 are respectively welded and installed at the two ends of the top of the filter box 3, and the first electric guide rail 62 is fixedly installed in the center of the top of the guide rail bracket 61, and the first guide rail slide 63 is installed in the center of the top of the first electric guide rail 62, and the top of the first guide rail slide 63 is installed with a load-bearing arm 64 by welding, and a blanking barrel 66 is arranged between the two load-bearing arm 64, and the bottom end surface of the blanking barrel 66 is connected and installed with a telescopic sleeve 614, and the bottom end surface of the telescopic sleeve 614 is connected and installed with a discharge barrel 6 16; The outer wall of the blanking barrel 66 is welded with a locking screw plate, and a locking stud is installed in the center of the end face of the locking screw plate. A locking screw hole is opened in the center of the top of the locking top seat 65, and the bottom end of the locking stud passes through the locking screw plate and is threadedly fixedly connected with the locking screw hole; it is convenient to fix the locking screw plate on the top of the locking top seat 65 through the locking stud, so that the blanking barrel 66 is fixedly installed between the load-bearing arm 64, which improves the convenience of installation and connection and the firmness of the connection; the bottom end face of the blanking barrel 66 is welded with a connecting cross plate 67, and the four connecting cross plates are connected to the bottom end face of the blanking barrel 66. A mounting bracket 68 is welded and installed on the outer side of the cross plate 67, a second electric guide rail 69 is fixedly installed at the center of the bottom end of the mounting bracket 68, and a second guide rail slide 610 is installed at the outer side of the bottom of the second electric guide rail 69, and the rotation angle of the second guide rail slide 610 on the outer side of the second electric guide rail 69 is 0-270°, a mounting partition 611 is fixedly installed at the center of the bottom end of the second guide rail slide 610, and an electric cylinder 612 is fixedly installed at the center of the end face of the mounting partition 611, a piston push rod 613 is installed at the center of one end of the electric cylinder 612, and the other end of the piston push rod 613 is fixedly installed at the center of the end face of the piston push rod 613. A traction sleeve 617 is welded and installed at the end, an anti-slip plate is fixedly installed on one side of the outer wall of the discharge barrel 616, and a traction rod 615 is fixedly installed between the two anti-slip plates. The traction sleeve 617 is sleeved and installed on the outside of the traction rod 615, and the rotation angle of the traction sleeve 617 on the outside of the traction rod 615 is 0-270°; as the second guide rail slide 610 is rotated and adjusted, and the electric cylinder 612 and the piston push rod 613 can adjust the discharge position of the telescopic sleeve 614 and the discharge barrel 616, the discharge is convenient, the uniformity of the discharge is effectively improved, and the filtering quality is improved.

[0032] The material turning assembly 5 includes a material turning motor 51, which is fixedly installed on one side of the end surface of the filter case 3, and a driving pulley 52 is fixedly installed on the outer side of the motor shaft of the material turning motor 51, and a limiting column 56 is fixedly installed on both sides of one end of the driving pulley 52. ​​A first transmission belt 57 is sleeved and installed on the outer side of the driving pulley 52. ​​A first follower shaft 59 and a second follower shaft 510 are respectively plugged and installed on both sides of the inside of the filter case 3. One end of the first follower shaft 59 passes through the filter case 3 and is connected to two first follower pulleys 58, and one of the first follower pulleys 5 8 is connected to the driving pulley 52 through the first transmission belt 57, one end of the second follower shaft 510 passes through the filter box 3 and is connected to a second follower pulley 511, the outer side of the second follower pulley 511 is sleeved with a second transmission belt 512, and the other side of the second transmission belt 512 is sleeved and installed on the outer side of another first follower pulley 58, the outer wall center of the first follower shaft 59 and the second follower shaft 510 are fixedly installed with a turning roller 513, and the outer wall of the turning roller 513 is installed with a plurality of material-shifting support rods 514 on both sides by welding, and the first follower shaft The material shifting support rod 514 on the outside of 59 is staggered with the material shifting support rod 514 on the outside of the second follower shaft 510; the material turning assembly 5 is used to turn and stir the coal material, thereby improving the filtering effect; a limit frame 53 is arranged on the bottom side of the material turning motor 51, and one end of the limit frame 53 is fixedly connected to the end surface of the filter box 3, and the limit frame 53 is located at the outer end of the driving pulley 52 and has two limit grooves 55, and one end of the two limit columns 56 is respectively inserted and installed in the two limit grooves 55, and a limiter 5 is fixedly installed at the bottom center of the limit frame 53. 4, and the limiter 54 is electrically connected to the material turning motor 51; it can have a limiting effect on the rotation of the motor shaft of the material turning motor 51; two transmission through holes are provided in the center of both ends of the filter chassis 3, and transmission bearings are fixedly installed inside the transmission through holes, both ends of the first follower shaft 59 and the second follower shaft 510 pass through the transmission through holes, and the outer walls of the first follower shaft 59 and the second follower shaft 510 are rotatably connected with the transmission bearings at the corresponding positions; it is convenient for the first follower shaft 59 and the second follower shaft 510 to rotate inside the transmission bearings, and the stability of the transmission is effectively improved.

[0033] The impurity collecting assembly 7 includes a collecting casing 71, which is arranged between the two vertical beams 2, and the collecting casing 71 is located directly below the bottom of the filter hole 4. The inner bottom of the collecting casing 71 is an inclined surface structure. Connecting cross seats 72 are fixedly installed on all sides of the outer wall of the collecting casing 71, and the other end of the connecting cross seat 72 is fixedly connected to the vertical beam 2. A flip connecting rod 73 is plugged and installed in the center of the top side of one end of the collecting casing 71, and the two ends of the flip connecting rod 73 are rotatably connected to the collecting casing 71. A baffle plate 74 is fixedly installed on the outer side of the flip connecting rod 73, and the bottom end of the baffle plate 74 is connected to the inner wall of the collecting casing 71. A flip handle 75 is provided on one side of the outer side of the collecting casing 71, and one end of the flip connecting rod 73 passes through the collecting casing 71 and is fixedly connected to the flip handle 75; it is convenient for the impurity collecting assembly 7 to collect and store impurities dropped during filtration.

[0034] Two lightweight through holes are provided on both sides of the end surface of the sieve base 1. The bottom end surface of the sieve base 1 is fixedly installed with load-bearing feet 8 by welding, and the center of the bottom end surface of the load-bearing feet 8 is fixedly installed with an anti-slip bottom pad. The load-bearing feet 8 and the anti-slip bottom pad can provide a firm support effect for the sieve base 1, making the overall structure more stable.

[0035] Working principle: When in use, the load-bearing feet 8 and the anti-skid bottom pad can provide a stable and firm support effect on the screening base 1; the coal material that needs to be screened for impurities is fed through the blanking assembly 6, and when the first electric guide rail 62 on the top of the guide rail bracket 61 works, the first guide rail slide 63 slides on the top of the first electric guide rail 62, thereby driving the blanking barrel 66 to reciprocate on the top of the filter box 3 through the load-bearing arm 64 and the locking top seat 65. During the movement, the second electric guide rail 69 can be stably installed and suspended by connecting the cross plate 67 and the mounting hanger 68. At the same time, the electric cylinder 612 on the end face of the partition 611 works, and the movable The plug push rod 613 and the traction ring 617 pull the telescopic sleeve 614 outside the traction rod 615. When the second electric guide rail 69 is working, the second guide rail slide 610 rotates on the outside of the second electric guide rail 69, so that the traction ring 617 rotates on the outside of the telescopic sleeve 614, thereby driving the discharge barrel 616 and the traction rod 615 to adjust the position, so that the coal material inside the discharge barrel 66 falls into the inside of the filter box 3 through the discharge barrel 616 and the traction rod 615, and the coal material falling into the inside of the filter box 3 is turned over and transferred by the turning assembly 5. When the turning motor 51 is working, the motor shaft drives the active pulley 52 to rotate, and the first transmission belt 57 drives the first transmission belt 57 to drive ... The two first follower pulleys 58 on the outer side of the first follower shaft 59 are driven to rotate. As the first follower pulley 58 rotates, the second follower pulley 511 on the outer side of the second follower shaft 510 is driven to rotate through the second transmission belt 512, so that the first follower shaft 59 and the second follower shaft 510 rotate inside the filter box 3, respectively driving the material-shifting support rod 514 on the outer side of the material-turning roller 513 to turn over, thereby turning and shifting the coal material; as the active pulley 52 rotates, the limiting groove 55 is driven to rotate inside the limiting column 56 on the end face of the limiting frame 53. After the limiting groove 55 rotates to the limit position, the material-turning motor 51 is reversed through the limiter 54, so that the material-turning roller 513 The outer side of the material-turning roller 513 is turned over. The material support rod 514 swings back and forth to effectively turn the coal over; the impurities carried by the coal material after turning over are filtered out through the filter hole 4, and the impurities are collected by the impurity collecting assembly 7. The collecting casing 71 can be fixedly installed between the vertical beams 2 by connecting the cross seat 72. When the impurities fall into the interior of the collecting casing 71 through the filter hole 4, they are stored and stacked on one side of the baffle plate 74 through the inclined surface inside the collecting casing 71. The user rotates the flip handle 75, so that the flip handle 75 drives the flip connecting rod 73 to rotate between the collecting casing 71, driving the baffle plate 74 to flip, so that the impurities on one side of the baffle plate 74 slide out from the interior of the collecting casing 71, which is convenient for collection.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for filtering impurities from coal, characterized in that: include: A sieve filter base (1), wherein vertical beam frames (2) are fixedly mounted at the center of both sides of the top end surface of the sieve filter base (1) by welding, and an impurity collection component (7) is arranged between the two vertical beam frames (2), a filter box (3) is fixedly mounted at the top of the two vertical beam frames (2), and the filter box (3) is located directly above the top of the impurity collection component (7), a plurality of filter holes (4) are opened on the inner bottom end surface of the filter box (3), a material turning component (5) is arranged at the center of the interior of the filter box (3), and a material dropping component (6) is arranged directly above the top of the filter box (3); A guide rail bracket (61), the blanking assembly (6) includes a guide rail bracket (61), two of the guide rail brackets (61) are respectively welded and installed at the two ends of the top of the filter box (3), and a first electric guide rail (62) is fixedly installed at the center of the top of the guide rail bracket (61), a first guide rail slide (63) is installed at the center of the top of the first electric guide rail (62), and a load-bearing arm (64) is installed at the top of the first guide rail slide (63) by welding, a blanking barrel (66) is arranged between the two load-bearing arm brackets (64), and a telescopic sleeve (614) is connected and installed at the center of the bottom end surface of the blanking barrel (66), and a discharge barrel (616) is connected and installed at the bottom end surface of the telescopic sleeve (614).

2. The device for filtering impurities from coal according to claim 1, characterized in that: The outer wall of the blanking barrel (66) is welded with locking screw plates, and a locking stud is installed in the center of the end surface of the locking screw plate. A locking screw hole is opened in the center of the top of the locking top seat (65), and the bottom end of the locking stud passes through the locking screw plate and is threadedly fixedly connected to the locking screw hole.

3. A device for filtering impurities from coal according to claim 2, characterized in that: The bottom end surface of the blanking barrel (66) is welded with connecting transverse plates (67) all around, and the outer sides of the four connecting transverse plates (67) are welded with mounting brackets (68), the bottom center of the mounting bracket (68) is fixedly mounted with a second electric guide rail (69), and the bottom outer side of the second electric guide rail (69) is mounted with a second guide rail slide (610), the rotation angle of the second guide rail slide (610) on the outer side of the second electric guide rail (69) is 0-270 degrees, and the bottom center of the second guide rail slide (610) is fixedly mounted with a mounting partition (611), An electric cylinder (612) is fixedly installed at the center of the end surface of the mounting partition (611), a piston push rod (613) is installed at the center of one end of the electric cylinder (612), and a traction ring (617) is welded and installed at the other end of the piston push rod (613), an anti-slip plate is fixedly installed at one side of the outer wall of the discharge barrel (616), and a traction rod (615) is fixedly installed between the two anti-slip plates, the traction ring (617) is sleeved and installed on the outside of the traction rod (615), and the rotation angle of the traction ring (617) on the outside of the traction rod (615) is 0-270°.

4. The device for filtering impurities from coal according to claim 1, characterized in that: The material turning assembly (5) comprises a material turning motor (51), the material turning motor (51) is fixedly mounted on one side of the end surface of the filter case (3), and a driving pulley (52) is fixedly mounted on the outer side of the motor shaft of the material turning motor (51), and limiting columns (56) are fixedly mounted on both sides of one end of the driving pulley (52), and a first transmission belt (57) is sleeved and mounted on the outer side of the driving pulley (52), and a first follower shaft (59) and a second follower shaft (510) are respectively plugged and mounted on both sides of the interior of the filter case (3), and one end of the first follower shaft (59) passes through the filter case (3) and is connected to two first follower pulleys (58), and one of the first follower pulleys (58) is connected to the driving pulley through the first transmission belt (57). (52), one end of the second follower shaft (510) passes through the filter box (3) and is connected to a second follower pulley (511), the outer side of the second follower pulley (511) is sleeved with a second transmission belt (512), and the other side of the second transmission belt (512) is sleeved with the outer side of another first follower pulley (58), a material turning roller (513) is fixedly installed in the center of the outer wall of the first follower shaft (59) and the second follower shaft (510), and a plurality of material shifting support rods (514) are installed on both sides of the outer wall of the material turning roller (513) by welding, and the material shifting support rod (514) on the outer side of the first follower shaft (59) and the material shifting support rod (514) on the outer side of the second follower shaft (510) are staggered.

5. The device for filtering impurities from coal according to claim 4, characterized in that: A limiting frame (53) is arranged on the bottom side of the material turning motor (51), and one end of the limiting frame (53) is fixedly connected to the end surface of the filter box (3); one end of the limiting frame (53) located outside the driving pulley (52) is provided with two limiting grooves (55), and one end of two limiting columns (56) are respectively inserted and installed in the inside of the two limiting grooves (55); a limiter (54) is fixedly installed in the center of the bottom end of the limiting frame (53), and the limiter (54) is electrically connected to the material turning motor (51).

6. The device for filtering impurities from coal according to claim 5, characterized in that: Two transmission through holes are provided in the center of both ends of the filter housing (3), and transmission bearings are fixedly installed inside the transmission through holes. Both ends of the first follower shaft (59) and the second follower shaft (510) pass through the transmission through holes, and the outer walls of the first follower shaft (59) and the second follower shaft (510) are rotatably connected to the transmission bearings at corresponding positions.

7. The device for filtering impurities from coal according to claim 1, characterized in that: The impurity collecting assembly (7) comprises a collecting casing (71), the collecting casing (71) being arranged between two vertical beam frames (2), and the collecting casing (71) being located directly below the bottom of the filter hole (4), the inner bottom of the collecting casing (71) being an inclined surface structure, the outer wall of the collecting casing (71) being fixedly mounted with connecting cross seats (72) all around, and the other end of the connecting cross seat (72) being fixedly connected to the vertical beam frame (2), and one end of the collecting casing (71) being fixedly connected to the vertical beam frame (2), and the other end of the connecting cross seat (72) being fixedly connected to the vertical beam frame (2). A flip connecting rod (73) is plugged and installed in the center of the top side, and both ends of the flip connecting rod (73) are rotatably connected to the collecting casing (71). A material blocking plate (74) is fixedly installed on the outer side of the flip connecting rod (73), and the bottom end of the material blocking plate (74) is connected to the inner wall of the collecting casing (71). A flip handle (75) is provided on one side of the outer side of the collecting casing (71), and one end of the flip connecting rod (73) passes through the collecting casing (71) and is fixedly connected to the flip handle (75).

8. The device for filtering impurities from coal according to claim 1, characterized in that: Two lightweight through holes are provided on both sides of the end surface of the sieve base (1), and load-bearing feet (8) are fixedly installed on all four sides of the bottom end surface of the sieve base (1) by welding, and a non-slip bottom pad is fixedly installed in the center of the bottom end surface of the load-bearing feet (8).

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