A device for screening impurities from coal

Abstract

This invention relates to the field of coal processing equipment technology, specifically a device for screening impurities in coal, comprising: a screening base, on which vertical beams are fixedly welded to the center of both sides of the top end face of the screening base, and an impurity collection assembly is arranged between the two vertical beams; a filter box is fixedly installed at the top of the two vertical beams, and the filter box is located directly above the top of the impurity collection assembly; a plurality of filter holes are opened on the bottom end face of the inner side of the filter box; a material turning assembly is arranged in the center of the interior of the filter box; and a material dropping assembly is arranged directly above the top of the filter box. This device for screening impurities in coal can adjust the feeding position of coal material according to usage requirements, thereby effectively avoiding blockage of the falling coal material; and it can facilitate the turning and flipping of the coal material, so that the impurities carried by the coal material are stripped off and effectively collected.

Description

Technical Field

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

[0002] Coal mined from mines needs to be filtered to remove impurities; during the filtration process, coal screening devices are usually used to remove impurities.

[0003] In existing coal screening devices, the coal material is difficult to feed, which leads to accumulation and blockage of the falling coal material. The blockage makes it difficult to screen out impurities, thus affecting the efficiency of impurity removal. Therefore, a coal screening device is proposed to address the above problems. Summary of the Invention

[0004] The problem solved by this invention is to provide a device for screening impurities in coal, which can adjust the feeding position of coal material according to the usage requirements, thereby effectively avoiding blockage of the falling coal material; and, it can facilitate the turning and flipping of coal material, so that the impurities carried by the coal material can be removed, thereby facilitating the screening of coal material for impurities and effectively collecting the impurities.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A coal screening device for impurities, comprising:

[0007] A filter base has vertical beams fixedly installed on both sides of the top end face of the filter base by welding, and an impurity collection component is set between the two vertical beams. A filter box is fixedly installed on the top of the two vertical beams, and the filter box is located directly above the top of the impurity collection component. Several filter holes are opened on the bottom end face of the inner side of the filter box. A material turning component is set in the center of the interior of the filter box, and a material dropping component is set directly above the top of the filter box.

[0008] The guide rail support is included in the material feeding assembly. Two guide rail supports are welded and installed at the top ends of the filter box, and a first electric guide rail is fixedly installed at the center of the top of the guide rail support. 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 welded to the top of the first guide rail slide. A material feeding cylinder is provided between the two load-bearing arms, and a telescopic sleeve is connected and installed at the center of the bottom end face of the material feeding cylinder. A discharge cylinder is connected and installed at the bottom end face of the telescopic sleeve.

[0009] Furthermore, locking screw plates are welded and installed around the outer wall of the material discharge cylinder, 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 threadedly connected to the locking screw hole. This facilitates the fixing of the locking screw plate to the top of the locking top seat by the locking stud, so that the material discharge cylinder is fixedly installed between the load-bearing booms, improving the convenience of installation and connection and the firmness and tightness of the connection.

[0010] Furthermore, connecting horizontal plates are welded to all four sides of the bottom end face of the feeding cylinder, and mounting brackets are welded to the outer sides of the four connecting horizontal plates. A second electric guide rail is fixedly mounted at the center of the bottom end of the mounting bracket, and a second guide rail slide is mounted on the outer bottom of the second electric guide rail. The rotation angle of the second guide rail slide outside the second electric guide rail is 0-270°. A mounting partition is fixedly mounted at the center of the bottom end of the second guide rail slide, and an electric cylinder is fixedly mounted at the center of the end face of the mounting partition. One end of the electric cylinder... A piston push rod is installed in the center, and a traction collar is welded to the other end of the piston push rod. An anti-detachment plate is fixedly installed on one side of the outer wall of the discharge cylinder, and a traction rod is fixedly installed between the two anti-detachment plates. The traction collar is sleeved on the outside of the traction rod, and the rotation angle of the traction collar on the outside of the traction rod is 0-270°. With the rotation adjustment of the second guide rail slide and the electric cylinder and piston push rod, the discharge position of the telescopic sleeve and the discharge cylinder can be adjusted, making the discharge convenient, effectively improving the uniformity of the discharge, and helping to improve the filtration quality.

[0011] Furthermore, the material-turning assembly includes a material-turning motor, which is fixedly installed on one side of the end face of the filter housing. A drive pulley is fixedly installed on the outer side of the motor shaft of the material-turning motor. Limiting posts are fixedly installed on both sides of one end of the drive pulley. A first transmission belt is sleeved on the outer side of the drive pulley. A first follower shaft and a second follower shaft are respectively inserted and installed on both sides of the inside of the filter housing. One end of the first follower shaft passes through the filter housing and is connected to two first follower pulleys. One of the first follower pulleys is connected to the drive pulley via the first transmission belt. One end of the follower shaft passes through the filter housing and is connected to a second follower pulley. A second transmission belt is sleeved on the outer side of the second follower pulley, and the other side of the second transmission belt is sleeved on the outer side of another first follower pulley. A turning roller is fixedly installed in the center of the outer wall of both the first and second follower shafts, and several material-pushing support rods are welded to both sides of the outer wall of the turning rollers. The material-pushing support rods on the outer side of the first and second follower shafts are staggered. The turning assembly facilitates the turning and agitation of coal materials, thereby improving the filtration 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. Two limit grooves are opened at the outer end of the limit frame located on the drive pulley, and one end of each of the two limit posts is inserted into the two limit grooves respectively. A limiter is fixedly installed at the center of the bottom end of the limit frame, and the limiter is electrically connected to the material-turning motor; thus, it can limit the rotation of the motor shaft of the material-turning motor.

[0013] Furthermore, two transmission through holes are opened at the center of each end of the filter housing, 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 bearings, effectively improving the stability of the transmission.

[0014] Furthermore, the impurity collection assembly includes a collection housing, which is disposed between two vertical beams and located directly below the bottom of the filter holes. The bottom inner side of the collection housing has an inclined surface structure. Connecting cross seats are fixedly installed around the outer wall of the collection housing, and the other end of the connecting cross seats is fixedly connected to the vertical beams. A flipping connecting rod is inserted into the center of the top side of one end of the collection housing, and both ends of the flipping connecting rod are rotatably connected to the collection housing. A baffle plate is fixedly installed on the outer side of the flipping connecting rod, and the bottom end of the baffle plate is connected to the inner wall of the collection housing. A flipping handle is provided on the outer side of the collection housing, and one end of the flipping connecting rod passes through the collection housing and is fixedly connected to the flipping handle. This facilitates the collection and storage of impurities that fall during filtration through the impurity collection assembly.

[0015] Furthermore, two lightweight through holes are provided on both sides of the end face of the filter base, and load-bearing feet are fixedly installed around the bottom end face of the filter base by welding, and an anti-slip pad is fixedly installed in the center of the bottom end face of the load-bearing feet; the load-bearing feet and the anti-slip pad can provide a firm support effect for the filter base, making the overall structure more stable.

[0016] The beneficial effects of this invention are: the coal screening and impurity filtering device has a solid overall support and good stability; during use, the material feeding component can be set to adjust the feeding position of the coal material according to the usage requirements, so that the coal material is fed at different positions, thereby effectively avoiding blockage of the falling coal material; furthermore, the material turning component can easily turn the coal material, so that the impurities carried by the coal material can be quickly stripped off, facilitating the screening of the coal material and effectively improving the efficiency of impurity removal; and the impurity collection component can effectively collect impurities, improving the convenience of impurity collection and treatment. Attached Figure Description

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

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

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

[0020] Figure 4 for Figure 3 Schematic diagram of the cross section of AA;

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

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

[0023] Figure 7 for Figure 6 Cross-sectional view of BB;

[0024] Figure 8 for Figure 6 A cross-sectional view of the C-section.

[0025] Legend:

[0026] 1. Screen base; 2. Vertical beam frame; 3. Filter box; 4. Filter holes; 5. Tilting assembly; 6. Discharge assembly; 7. Impurity collection assembly; 8. Load-bearing support; 51. Tilting motor; 52. Drive pulley; 53. Limiting frame; 54. Limiter; 55. Limiting groove; 56. Limiting post; 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. Tilting roller; 514. Material feeding support rod; 61. Guide rail support. 61. Base; 62. First electric guide rail; 63. First guide rail slide; 64. Load-bearing boom; 65. Locking top seat; 66. Discharge cylinder; 67. Connecting horizontal plate; 68. Mounting hanger; 69. Second electric guide rail; 610. Second guide rail slide; 611. Mounting partition; 612. Electric cylinder; 613. Piston push rod; 614. Telescopic sleeve; 615. Traction rod; 616. Discharge cylinder; 617. Traction collar; 71. Collector housing; 72. Connecting horizontal seat; 73. Tilting connecting rod; 74. Baffle plate; 75. Tilting handle. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Specific implementation examples are given below.

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

[0030] The filter base 1 has vertical beams 2 fixedly welded to the center of both sides of its top end face. An impurity collection component 7 is positioned between the two vertical beams 2, providing stable and secure support. A filter box 3 is fixedly installed at the top of the two vertical beams 2, directly above the impurity collection component 7. The filter box 3 also provides stable and secure support. Several filter holes 4 are provided on the bottom inner side of the filter box 3, facilitating the screening and removal of impurities from the coal. A material-turning component 5 is located in the center of the filter box 3, allowing for easy turning and shaking of the coal material, effectively improving the filtration effect. A material-feeding component 6 is located directly above the top of the filter box 3, ensuring even feeding of the coal material and preventing uneven feeding from affecting the filtration effect.

[0031] The guide rail support 61 and the material discharge assembly 6 include two guide rail supports 61, which are respectively welded and installed at the top ends of the filter box 3. A first electric guide rail 62 is fixedly installed at the center of the top of the guide rail support 61. A first guide rail slide 63 is installed at the center of the top of the first electric guide rail 62. A load-bearing arm 64 is welded to the top of the first guide rail slide 63. A material discharge cylinder 66 is arranged between the two load-bearing arms 64. A telescopic sleeve 614 is connected and installed at the center of the bottom end face of the material discharge cylinder 66. A discharge cylinder 6 is connected and installed at the bottom end face of the telescopic sleeve 614. 16; Locking screw plates are welded to all four sides of the outer wall of the discharge cylinder 66, 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 connected to the locking screw hole. This facilitates the fixing of the locking screw plate to the top of the locking top seat 65 through the locking stud, so that the discharge cylinder 66 is fixedly installed between the load-bearing booms 64, improving the convenience of installation and connection and the firmness and tightness of the connection. Connecting horizontal plates 67 are welded to all four sides of the bottom end face of the discharge cylinder 66, and four connecting horizontal plates 67 are installed. A mounting bracket 68 is welded to the outer side of the horizontal plate 67. A second electric guide rail 69 is fixedly mounted at the center of the bottom end of the mounting bracket 68. A second guide rail slide 610 is mounted on the outer side of the bottom of the second electric guide rail 69. 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 mounted at the center of the bottom end of the second guide rail slide 610. An electric cylinder 612 is fixedly mounted at the center of the end face of the mounting partition 611. A piston push rod 613 is mounted at the center of one end of the electric cylinder 612. A traction collar 617 is welded to the end of the discharge cylinder 616. An anti-detachment plate is fixedly installed on one side of the outer wall of the discharge cylinder 616, and a traction rod 615 is fixedly installed between the two anti-detachment plates. The traction collar 617 is sleeved on the outside of the traction rod 615, and the rotation angle of the traction collar 617 on the outside of the traction rod 615 is 0-270°. With the rotation adjustment of the second guide rail slide 610, the discharge position of the telescopic sleeve 614 and the discharge cylinder 616 can be adjusted by the electric cylinder 612 and the piston push rod 613. The discharge is convenient and effectively improves the uniformity of the discharge, which is conducive to improving the filtration quality.

[0032] The material turning assembly 5 includes a material turning motor 51, which is fixedly installed on one side of the end face of the filter housing 3. A drive pulley 52 is fixedly installed on the outside of the motor shaft of the material turning motor 51. Limiting posts 56 are fixedly installed on both sides of one end of the drive pulley 52. ​​A first transmission belt 57 is sleeved on the outside of the drive pulley 52. ​​A first follower shaft 59 and a second follower shaft 510 are respectively inserted and installed on both sides of the inside of the filter housing 3. One end of the first follower shaft 59 passes through the filter housing 3 and is connected to two first follower pulleys 58. 8 is connected to the drive pulley 52 via the first transmission belt 57. One end of the second follower shaft 510 passes through the filter housing 3 and is connected to a second follower pulley 511. A second transmission belt 512 is sleeved on the outside of the second follower pulley 511, and the other side of the second transmission belt 512 is sleeved on the outside of another first follower pulley 58. A turning roller 513 is fixedly installed in the center of the outer wall of both the first follower shaft 59 and the second follower shaft 510. Several material-pulling support rods 514 are welded to both sides of the outer wall of the turning roller 513. The material feeding support rod 514 on the outer side of the 59 is offset from the material feeding support rod 514 on the outer side of the second follower shaft 510; the material turning assembly 5 facilitates the turning and stirring of coal materials, thereby improving the filtration effect; a limit frame 53 is provided on the bottom side of the material turning motor 51, and one end of the limit frame 53 is fixedly connected to the end face of the filter box 3. Two limit grooves 55 are opened on the outer end of the limit frame 53 located on the drive pulley 52, and one end of each of the two limit posts 56 is inserted into the two limit grooves 55 respectively. A limiter 5 is fixedly installed at the center of the bottom end of the limit frame 53. 4. The limiter 54 is electrically connected to the material turning motor 51; it can limit the rotation of the motor shaft of the material turning motor 51; two transmission through holes are opened at the center of both ends of the filter box 3, and transmission bearings are fixedly installed inside the transmission through holes. The two 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 the corresponding positions; this facilitates the rotation of the first follower shaft 59 and the second follower shaft 510 inside the transmission bearings, effectively improving the stability of the transmission.

[0033] The impurity collection assembly 7 includes a collection housing 71, which is located between two vertical beams 2 and directly below the bottom of the filter holes 4. The bottom inner side of the collection housing 71 has an inclined surface structure. Connecting crossbars 72 are fixedly installed on all four sides of the outer wall of the collection housing 71, and the other end of the connecting crossbars 72 is fixedly connected to the vertical beams 2. A flipping connecting rod 73 is inserted into the center of the top side of one end of the collection housing 71, and both ends of the flipping connecting rod 73 are rotatably connected to the collection housing 71. A baffle plate 74 is fixedly installed on the outer side of the flipping connecting rod 73, and the bottom end of the baffle plate 74 is connected to the inner wall of the collection housing 71. A flipping handle 75 is provided on the outer side of the collection housing 71, and one end of the flipping connecting rod 73 passes through the collection housing 71 and is fixedly connected to the flipping handle 75. This facilitates the collection and storage of impurities that fall during filtration through the impurity collection assembly 7.

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

[0035] Working Principle: During use, the load-bearing legs 8 and anti-slip pads provide stable and firm support for the filter base 1. Coal material requiring screening is fed through the material feeding assembly 6. When the first electric guide rail 62 on top of the guide rail support 61 operates, the first guide rail slide 63 slides on top of the first electric guide rail 62, thereby driving the material feeding cylinder 66 to reciprocate on top of the filter housing 3 via the load-bearing arm 64 and locking top seat 65. During this movement, the connecting horizontal plate 67 and mounting bracket 68 provide stable installation and suspension for the second electric guide rail 69. Simultaneously, the electric cylinder 612 on the end face of the mounting partition 611 operates, via the... The push rod 613 and the traction collar 617 pull the telescopic sleeve 614 on the outside of 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, causing the traction collar 617 to rotate on the outside of the telescopic sleeve 614. This drives the discharge cylinder 616 and the traction rod 615 to adjust their positions, so that the coal material inside the discharge cylinder 66 falls into the filter box 3 through the discharge cylinder 616 and the traction rod 615. The turning assembly 5 turns and pushes the coal material that has fallen into the filter box 3. When the turning motor 51 is working, it drives the drive pulley 52 to rotate through the motor shaft, and drives the first transmission belt 57 to rotate. The two first follower pulleys 58 on the outer side of the first follower shaft 59 rotate. As the first follower pulleys 58 rotate, the second follower pulleys 511 on the outer side of the second follower shaft 510 rotate via the second transmission belt 512, causing the first follower shaft 59 and the second follower shaft 510 to rotate inside the filter housing 3. This causes the material-pushing support rods 514 on the outer side of the turning roller 513 to flip, thereby turning and pushing the coal material. As the drive pulley 52 rotates, it drives the limiting groove 55 to rotate inside the limiting post 56 on the end face of the limiting frame 53. After the limiting groove 55 rotates to its limit position, the limiting device 54 causes the turning motor 51 to reverse, thereby causing the material-pushing support rods 514 on the outer side of the turning roller 513 to rotate. The material support rod 514 swings back and forth, effectively turning the coal. The impurities carried by the turned coal material are filtered and fall through the filter hole 4 and collected by the impurity collection component 7. The collection housing 71 can be fixedly installed between the vertical beams 2 by connecting the cross seat 72. When the impurities fall through the filter hole 4 into the inside of the collection housing 71 for storage, they are piled on one side of the baffle plate 74 through the inclined surface inside the collection housing 71. The operator rotates the flip handle 75, which drives the flip connecting rod 73 to rotate between the collection housings 71, causing the baffle plate 74 to flip. Thus, the impurities on one side of the baffle plate 74 slide out from the inside of the collection housing 71 for easy collection.

[0036] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for filtering impurities from coal, characterized in that, include: A screen base (1) has vertical beams (2) fixedly installed on both sides of the top end face of the screen base (1) by welding, and an impurity collection component (7) is provided between the two vertical beams (2). A filter box (3) is fixedly installed at the top of the two vertical beams (2), and the filter box (3) is located directly above the top of the impurity collection component (7). Several filter holes (4) are opened on the bottom end face of the inner side of the filter box (3). A material turning component (5) is provided in the center of the interior of the filter box (3), and a material dropping component (6) is provided directly above the top of the filter box (3). The guide rail support (61) and the material discharge assembly (6) include the guide rail support (61). The two guide rail supports (61) are welded and installed at the top two ends of the filter box (3). A first electric guide rail (62) is fixedly installed at the center of the top of the guide rail support (61). A first guide rail slide (63) is installed at the center of the top of the first electric guide rail (62). A load-bearing arm (64) is welded to the top of the first guide rail slide (63). A material discharge cylinder (66) is provided between the two load-bearing arms (64). A telescopic sleeve (614) is connected and installed at the center of the bottom end face of the material discharge cylinder (66). A discharge cylinder (616) is connected and installed at the bottom end face of the telescopic sleeve (614). The bottom end face of the material discharge cylinder (66) is welded with connecting horizontal plates (67) around its perimeter. The four connecting horizontal plates (67) are welded with mounting brackets (68). The bottom center of the mounting brackets (68) is fixedly mounted with a second electric guide rail (69). 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) outside the second electric guide rail (69) is 0-270°. 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 face of the mounting plate (611). A piston rod (613) is installed at the center of one end of the electric cylinder (612), and a traction collar (617) is welded to the other end of the piston rod (613). An anti-detachment plate is fixedly installed on one side of the outer wall of the discharge cylinder (616), and a traction rod (615) is fixedly installed between the two anti-detachment plates. The traction collar (617) is sleeved and installed on the outside of the traction rod (615), and the rotation angle of the traction collar (617) on the outside of the traction rod (615) is 0-270°.

2. The apparatus for filtering impurities from coal according to claim 1, characterized in that, The outer wall of the material discharge cylinder (66) is equipped with locking screw plates 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 (65), and the bottom end of the locking stud passes through the locking screw plate and is threadedly connected to the locking screw hole.

3. The apparatus for filtering impurities from coal according to claim 1, characterized in that, The material turning assembly (5) includes a material turning motor (51), which is fixedly installed on one side of the end face of the filter housing (3). A drive pulley (52) is fixedly installed on the outside of the motor shaft of the material turning motor (51). Limiting posts (56) are fixedly installed on both sides of one end of the drive pulley (52). A first transmission belt (57) is sleeved on the outside of the drive pulley (52). A first follower shaft (59) and a second follower shaft (510) are respectively inserted and installed on both sides of the inside of the filter housing (3). One end of the first follower shaft (59) passes through the filter housing (3) and is connected to two first follower pulleys (58). One of the first follower pulleys (58) is connected to the drive pulley through the first transmission belt (57). (52) Connection: One end of the second follower shaft (510) passes through the filter box (3) and is connected to a second follower pulley (511). A second transmission belt (512) is sleeved on the outside of the second follower pulley (511), and the other side of the second transmission belt (512) is sleeved on the outside of another first follower pulley (58). A 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). Several material-pulling support rods (514) are welded on both sides of the outer wall of the turning roller (513). The material-pulling support rods (514) on the outside of the first follower shaft (59) and the material-pulling support rods (514) on the outside of the second follower shaft (510) are misaligned.

4. The apparatus for filtering impurities from coal according to claim 3, characterized in that, The bottom side of the material turning motor (51) is provided with a limit frame (53), and one end of the limit frame (53) is fixedly connected to the end face of the filter box (3). The limit frame (53) has two limit grooves (55) at one end outside the drive pulley (52), and one end of the two limit posts (56) is respectively inserted into the two limit grooves (55). A limit device (54) is fixedly installed at the center of the bottom end of the limit frame (53), and the limit device (54) is electrically connected to the material turning motor (51).

5. The apparatus for filtering impurities from coal according to claim 4, characterized in that, Two transmission through holes are opened at the center of both ends of the filter box (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 the corresponding positions.

6. The apparatus for filtering impurities from coal according to claim 1, characterized in that, The impurity collection assembly (7) includes a collection housing (71), which is disposed between two vertical beams (2) and located directly below the bottom of the filter hole (4). The bottom inner side of the collection housing (71) has an inclined surface structure. Connecting crossbars (72) are fixedly installed on all four sides of the outer wall of the collection housing (71), and the other end of the connecting crossbars (72) is fixedly connected to the vertical beams (2). One side of the collection housing (71) A flipping link (73) is inserted and installed in the center of the top side, and the two ends of the flipping link (73) are rotatably connected to the collector housing (71). A baffle plate (74) is fixedly installed on the outside of the flipping link (73), and the bottom end of the baffle plate (74) is connected to the inner wall of the collector housing (71). A flipping handle (75) is provided on the outer side of the collector housing (71), and one end of the flipping link (73) passes through the collector housing (71) and is fixedly connected to the flipping handle (75).

7. The apparatus for filtering impurities from coal according to claim 1, characterized in that, The filter base (1) has two lightweight through holes on both sides of its end face. The bottom end face of the filter base (1) is fixedly equipped with load-bearing feet (8) by welding, and the bottom end face of the load-bearing feet (8) is fixedly equipped with an anti-slip pad in the center.

Images