A slag crushing device for use in a coal mine underground

Abstract

The application belongs to the technical field of slag crushing, and particularly relates to a slag crushing device for underground coal mines, which comprises a base, a fixed disc fixedly connected to one side of the upper end face of the base, a reinforcing rib arranged at the bottom of the fixed disc, two rotating shafts rotatably arranged at one side of the fixed disc, a crushing roller fixedly sleeved on the rotating shaft, and a feed inlet fixedly connected to one side of the fixed disc; the device further comprises a circulating lifting and screening integrated assembly; the circulating lifting and screening integrated assembly comprises a crushing screen cylinder rotatably arranged at the end face of one side of the fixed disc. The circulating lifting and screening integrated assembly is used, and in the crushing process, the slag in the crushing screen cylinder is repeatedly moved to the two crushing rollers under the cooperation of the crushing screen cylinder and the push plate, so that the circulating crushing is realized, the crushing screen cylinder is emptied of the slag, and the dead angle in the crushing process is avoided, the incomplete crushing is avoided, and the crushing effect is improved.

Description

Technical Field

[0001] This invention belongs to the field of slag crushing technology, specifically a slag crushing device for underground coal mines. Background Technology

[0002] During underground coal mining operations, slag is often generated. If this slag is discarded directly, it will result in a waste of resources. Therefore, after being collected, this slag can be used as raw material for other building materials. In order to facilitate the subsequent reuse of slag, it needs to be crushed.

[0003] Patent CN212702151U discloses a slag crusher, relating to the technical field of slag crushing equipment. It includes a crushing shell, a primary crushing mechanism, a secondary crushing mechanism, an exhaust pipe, a feeding hopper, a screen, a conveying motor, and a support mechanism. The primary and secondary crushing mechanisms are housed inside the crushing shell. The exhaust pipe is fixedly connected to and communicates with the crushing shell. An exhaust fan is mounted on the exhaust pipe, and an exhaust hood is fixedly mounted at the end of the fan away from the crushing shell, positioned directly above the feeding hopper. A screen is located below the secondary crushing mechanism, and spiral conveying blades are mounted outside the conveying shaft. A support mechanism is fixedly mounted at the bottom of the crushing shell. Using this technical solution, the patent can more thoroughly crush slag, achieving one-step crushing and screening, ensuring the quality of the slag powder, and has the advantages of dust absorption and noise reduction, protecting the health of workers.

[0004] However, the above technical solutions still have the following shortcomings in practical applications: When crushing slag, the slag is poured into the space between two crushing rollers through a feeding funnel. The two rollers are then driven to rotate simultaneously, and the slag is crushed by the crushing teeth on the rollers. However, because there are gaps between the crushing teeth, dead zones inevitably appear during the crushing process. Uncrushed slag will fall through these gaps, resulting in incomplete crushing and affecting the overall crushing effect. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, the present invention proposes a slag crushing device for underground coal mines.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a slag crushing device for underground coal mines, including a base, a fixed plate fixedly connected to one side of the upper end face of the base, a reinforcing rib provided on one side of the bottom of the fixed plate, two rotating shafts rotatably arranged on one side of the fixed plate, crushing rollers fixedly sleeved on the rotating shafts, and a feed inlet fixedly connected to one side of the fixed plate. It also includes an integrated component for circulating lifting and screening; The integrated circulating lifting and screening component includes a crushing screen cylinder rotatably mounted on one side of the fixed plate. A support column is fixedly connected to one side of the upper end face of the base. A control panel is provided on one side of the support column. One end of the crushing screen cylinder is rotatably mounted on the support column. Multiple rows of screen holes are evenly arranged along the circumference of the crushing screen cylinder. Multiple push plates are evenly distributed and slidably connected along the circumference of the crushing screen cylinder.

[0007] Preferably, a gear is fixedly sleeved on one end of the rotating shaft, and the two gears mesh with each other. A fixed seat is fixedly connected to one side of the fixed disk, and a second motor is fixedly connected to one side of the fixed seat. The output end of the second motor is fixedly connected to one end of the rotating shaft.

[0008] Preferably, a first motor is fixedly connected to one side of the upper end of the support column, and the output end of the first motor is fixedly connected to one end of the crushing screen cylinder.

[0009] Preferably, a collection box is placed on one side of the upper surface of the base.

[0010] Preferably, it also includes an anti-slip cover component; The anti-slip cover assembly includes a cover plate, one end of which is rotatably mounted on a push plate.

[0011] Preferably, a mounting cavity is provided on one side of the push plate, and a third motor is fixedly connected to one side of the inner cavity of the mounting cavity. The output end of the third motor is fixedly connected to one end of the cover plate.

[0012] Preferably, it also includes an integrated anti-clogging and anti-jamming component; The anti-blocking and anti-jamming integrated component includes a support rod fixedly connected to one side of the upper end of the fixed plate, a second cylinder fixedly connected to one side of the support rod, and a mounting plate fixedly connected to the piston end of the second cylinder.

[0013] Preferably, an electromagnet is fixedly connected to the bottom of the mounting plate, and a magnetic block is provided on one side of the push plate, so that the electromagnet and the magnetic block can attract each other.

[0014] Preferably, slide rods are slidably connected to both sides of the push plate. A limit block is fixedly connected to one end of each slide rod, and a spring is sleeved on one side of each slide rod. One end of the spring is fixedly connected to the limit block, and the other end is fixedly connected to the end of the slide rod.

[0015] Preferably, a first cylinder is fixedly connected to one side of the support rod via a connecting block, a fixing plate is fixedly connected to the piston end of the first cylinder, and a plurality of unblocking blocks are fixedly connected to the lower end face of the fixing plate, the unblocking blocks being matched with the screen hole specifications.

[0016] The beneficial effects of this invention are as follows: 1. The slag crushing device for underground coal mines described in this invention utilizes an integrated circulating lifting and screening component. During the crushing process, the slag in the crushing screen cylinder is repeatedly moved between the two crushing rollers through the coordinated action of the crushing screen cylinder and the pusher plate, thereby achieving circulating crushing until the crushing screen cylinder is emptied of slag. This avoids dead zones during the crushing process, which could lead to incomplete crushing and affect the crushing effect. Furthermore, because the crushing screen cylinder rotates continuously, the slag is also in a continuous state of movement, which is beneficial to improving the slag screening effect.

[0017] 2. The slag crushing device for underground coal mines described in this invention utilizes an anti-slip cover assembly. Whenever the pusher plate pushes the slag upwards from the bottom, the cover plate rotates, causing one edge of the cover plate to adhere to the inner wall of the crushing screen cylinder. This keeps the slag within a closed triangular area, preventing it from falling along the pusher plate surface. When the pusher plate reaches its highest point, the cover plate rotates back to its original position, no longer covering the slag, allowing it to fall. This effectively avoids the situation where, due to the large volume of slag or a large amount of slag accumulated on the pusher plate, the slag falls prematurely before reaching the designated height, thus ensuring continuous and stable crushing of the slag.

[0018] 3. The slag crushing device for underground coal mines described in this invention utilizes an integrated anti-blocking and anti-jamming component to remove slag stuck at the angle between the push plate and the crushing screen cylinder, as well as at the screen holes, thereby enabling the slag to be crushed and screened out smoothly. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective; Figure 3 This is a schematic diagram of the three-dimensional structure of the fixed plate. Figure 4 This is a schematic diagram of the three-dimensional structure at the feed inlet; Figure 5 This is a schematic diagram of the three-dimensional structure at the support rod. Figure 6 yes Figure 5 Enlarged view of a portion of point A in the middle; Figure 7 This is a schematic diagram of the three-dimensional structure of the push plate. Figure 8 This is a schematic diagram of the three-dimensional structure at the fixed plate.

[0021] In the diagram: 1. Base; 2. Fixed plate; 3. Support rod; 4. Crushing screen cylinder; 5. Support column; 6. First motor; 7. First cylinder; 8. Second cylinder; 9. Feed inlet; 10. Collection box; 11. Second motor; 12. Gear; 13. Crushing roller; 14. Push plate; 15. Fixed plate; 16. Unblocking block; 17. Mounting plate; 18. Spring; 19. Slide rod; 20. Third motor; 21. Fixed seat; 22. Rotating shaft; 23. Control panel; 24. Screen hole; 25. Limiting block; 26. Connecting block; 27. Mounting cavity; 28. Magnetic block; 29. ​​Reinforcing rib; 30. Electromagnet; 31. Cover plate. Detailed Implementation

[0022] The technical solution of the present invention will now be clearly and completely described 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.

[0023] Please refer to Figures 1-8 The present invention provides a technical solution: a slag crushing device for underground coal mines, including a base 1, a fixed plate 2 fixedly connected to one side of the upper end face of the base 1, a reinforcing rib 29 provided on one side of the bottom of the fixed plate 2, two rotating shafts 22 rotatably arranged on one side of the fixed plate 2, a crushing roller 13 fixedly sleeved on the rotating shafts 22, and a feed inlet 9 fixedly connected to one side of the fixed plate 2. It also includes an integrated component for circulating lifting and screening; The integrated circulating lifting and screening component includes a crushing screen cylinder 4 rotatably mounted on one side of the fixed disk 2, a support column 5 fixedly connected to one side of the upper end face of the base 1, a control panel 23 mounted on one side of the support column 5, one end of the crushing screen cylinder 4 rotatably mounted on the support column 5, multiple rows of screen holes 24 are evenly arranged along the circumference of the crushing screen cylinder 4, and multiple push plates 14 are evenly distributed and slidably connected along the circumference of the crushing screen cylinder 4.

[0024] In this embodiment, as Figure 1 and Figure 4 As shown, a gear 12 is fixedly sleeved on one end of the rotating shaft 22, and the two gears 12 mesh with each other. A fixed seat 21 is fixedly connected to one side of the fixed disk 2, and a second motor 11 is fixedly connected to one side of the fixed seat 21. The output end of the second motor 11 is fixedly connected to one end of the rotating shaft 22.

[0025] A first motor 6 is fixedly connected to one side of the upper end of the support column 5, and the output end of the first motor 6 is fixedly connected to one end of the crushing screen cylinder 4.

[0026] A collection box 10 is placed on one side of the upper surface of the base 1.

[0027] Specifically, in the existing technology, when crushing slag, the slag is poured between two crushing rollers 13, and then crushed by the crushing teeth on the two crushing rollers 13. However, since there are gaps between the crushing teeth, crushing dead zones inevitably occur during the crushing process, and the slag that is not crushed will fall through the gaps, resulting in incomplete crushing and thus affecting the crushing effect.

[0028] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows: Place the entire device in a suitable position and operate it using the control panel 23. The second motor 11 drives the rotating shaft 22 on one side to rotate, which in turn causes the two crushing rollers 13 to rotate simultaneously with the cooperation of the two gears 12. The slag to be crushed is added to the crushing screen cylinder 4 through the feed inlet 9. Then, the first motor 6 drives the crushing screen cylinder 4 to rotate. When the crushing screen cylinder 4 rotates, the portion of the push plate 14 located inside the crushing screen cylinder 4 pushes the slag to move, causing the slag to rise from the bottom of the crushing screen cylinder 4. When the slag is about to reach the highest point of the crushing screen cylinder 4, it will fall between the two crushing rollers 13 under the action of gravity, thus crushing the slag. Furthermore, since the crushing screen cylinder 4 has multiple rows of screen holes 24, slag smaller than the screen holes 24 will fall through the screen holes 24 into the collection box 10.

[0029] By repeating the above operation, the slag in the crushing screen 4 can be moved repeatedly between the two crushing rollers 13 under the coordinated action of the crushing screen 4 and the push plate 14, thereby realizing cyclic crushing until the crushing screen 4 is emptied of slag. This avoids dead corners during the crushing process, which would lead to incomplete crushing and affect the crushing effect.

[0030] Furthermore, since the crushing screen cylinder 4 rotates continuously, the slag is also in a continuous state of movement, which is conducive to improving the slag screening effect.

[0031] In this embodiment, as Figures 5-7 As shown, it also includes an anti-slip cover assembly; The anti-slip cover assembly includes a cover plate 31, one end of which is rotatably mounted on the push plate 14.

[0032] A mounting cavity 27 is provided on one side of the push plate 14. A third motor 20 is fixedly connected to one side of the inner cavity of the mounting cavity 27. The output end of the third motor 20 is fixedly connected to one end of the cover plate 31.

[0033] Specifically, in the above embodiments, although the pusher plate 14 can be used to continuously push the slag upward to achieve the purpose of repeatedly crushing the slag, if the volume of the slag is large or the amount of slag piled on the pusher plate 14 is large when the pusher plate 14 pushes the slag upward, the slag may fall prematurely before it rises to the designated height, thus causing the slag to be unable to be crushed.

[0034] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows: Whenever the pusher plate 14 pushes the slag upwards from the bottom, the third motor 20 drives the cover plate 31 to rotate, causing one edge of the cover plate 31 to fit against the inner wall of the crushing screen cylinder 4. This keeps the slag within a closed triangular area, preventing it from falling off the surface of the pusher plate 14. When the pusher plate 14 reaches its highest point, the third motor 20 drives the cover plate 31 to rotate and reset, removing the cover plate from the slag and allowing it to fall. This effectively prevents the slag from falling prematurely before reaching the designated height when the pusher plate 14 pushes it upwards, due to its large volume or the large amount of slag accumulated on the pusher plate 14. This ensures continuous and stable crushing of the slag.

[0035] In this embodiment, as Figure 5 , Figure 7 , Figure 8 As shown, it also includes an integrated anti-clogging and anti-jamming component; The anti-blocking and anti-jamming integrated component includes a support rod 3 fixedly connected to one side of the upper end of the fixed plate 2, a second cylinder 8 fixedly connected to one side of the support rod 3, and a mounting plate 17 fixedly connected to the piston end of the second cylinder 8.

[0036] An electromagnet 30 is fixedly connected to the bottom of the mounting plate 17, and a magnetic block 28 is provided on one side of the push plate 14. The electromagnet 30 and the magnetic block 28 can attract each other.

[0037] Both sides of the push plate 14 are slidably connected to slide rods 19. One end of the slide rod 19 is fixedly connected to a limit block 25. A spring 18 is sleeved on one side of the slide rod 19. One end of the spring 18 is fixedly connected to the limit block 25, and the other end is fixedly connected to the end of the slide rod 19.

[0038] A first cylinder 7 is fixedly connected to one side of the support rod 3 via a connecting block 26. A fixing plate 15 is fixedly connected to the piston end of the first cylinder 7. Multiple unblocking blocks 16 are fixedly connected to the lower end face of the fixing plate 15. The unblocking blocks 16 are matched with the specifications of the sieve holes 24.

[0039] Specifically, in the above embodiments, although the pusher plate 14 can be used to push the slag upwards, the slag is easily stuck at the angle between the pusher plate 14 and the inner wall of the crushing screen cylinder 4, thus preventing the slag from being crushed and discharged. Furthermore, for some slag with a volume similar to that of the screen holes 24, such slag is easily stuck in the screen holes 24, causing the screen holes 24 to be blocked, thereby affecting the passage of subsequent slag.

[0040] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows: Whenever a pusher plate 14 moves to the highest point of the crushing screen cylinder 4, the crushing screen cylinder 4 stops rotating. The second cylinder 8 drives the electromagnet 30 to descend and energizes the electromagnet 30 until the electromagnet 30 attracts the magnetic block 28. Then, the second cylinder 8 drives the pusher plate 14 to rise, and the pusher plate 14 will be pulled out of the crushing screen cylinder 4 until the end of the pusher plate 14 is embedded in the edge of the crushing screen cylinder 4. At this time, the slag stuck at the angle between the pusher plate 14 and the crushing screen cylinder 4 will fall off. At this time, the first cylinder 7 drives the fixed plate 15 to move, so that the multiple unblocking blocks 16 on the fixed plate 15 pass through the screen hole 24 and push out the slag stuck in the screen hole 24. This achieves self-cleaning of the screen hole 24 and avoids the situation where the screen hole 24 is blocked by slag, which affects the subsequent passage of slag.

[0041] Working principle: The device is operated using the control panel 23. The second motor 11 drives the rotating shaft 22 on one side to rotate, which in turn causes the two crushing rollers 13 to rotate simultaneously with the cooperation of the two gears 12. The slag to be crushed is added into the crushing screen cylinder 4 through the feed inlet 9. Then, the first motor 6 drives the crushing screen cylinder 4 to rotate. When the crushing screen cylinder 4 rotates, the part of the push plate 14 located in the inner cavity of the crushing screen cylinder 4 pushes the slag to move, so that the slag rises from the bottom of the crushing screen cylinder 4. When the slag is about to reach the highest point of the crushing screen cylinder 4, it will fall between the two crushing rollers 13 under the action of gravity, and the crushing rollers 13 can then crush the slag. Furthermore, since the crushing screen cylinder 4 is provided with multiple rows of screen holes 24, slag with a volume smaller than the screen holes 24 will fall into the collection box 10 through the screen holes 24.

[0042] By repeating the above operation, the slag in the crushing screen 4 can be moved repeatedly between the two crushing rollers 13 under the coordinated action of the crushing screen 4 and the push plate 14, thereby realizing cyclic crushing until the crushing screen 4 is emptied of slag. This avoids dead corners during the crushing process, which would lead to incomplete crushing and affect the crushing effect.

[0043] Furthermore, since the crushing screen cylinder 4 rotates continuously, the slag is also in a continuous state of movement, which is conducive to improving the slag screening effect.

[0044] Whenever the pusher plate 14 pushes the slag upwards from the bottom, the third motor 20 drives the cover plate 31 to rotate, causing one edge of the cover plate 31 to fit against the inner wall of the crushing screen cylinder 4. This keeps the slag within a closed triangular area, preventing it from falling off the surface of the pusher plate 14. When the pusher plate 14 reaches its highest point, the third motor 20 drives the cover plate 31 to rotate and reset, removing the cover plate from the slag and allowing it to fall. This effectively prevents the slag from falling prematurely before reaching the designated height when the pusher plate 14 pushes it upwards, due to its large volume or the large amount of slag accumulated on the pusher plate 14. This ensures continuous and stable crushing of the slag.

[0045] Whenever a pusher plate 14 moves to the highest point of the crushing screen cylinder 4, the crushing screen cylinder 4 stops rotating. The second cylinder 8 drives the electromagnet 30 to descend and energizes the electromagnet 30 until the electromagnet 30 attracts the magnetic block 28. Then, the second cylinder 8 drives the pusher plate 14 to rise, and the pusher plate 14 will be pulled out of the crushing screen cylinder 4 until the end of the pusher plate 14 is embedded in the edge of the crushing screen cylinder 4. At this time, the slag stuck at the angle between the pusher plate 14 and the crushing screen cylinder 4 will fall off. At this time, the first cylinder 7 drives the fixed plate 15 to move, so that the multiple unblocking blocks 16 on the fixed plate 15 pass through the screen hole 24 and push out the slag stuck in the screen hole 24. This achieves self-cleaning of the screen hole 24 and avoids the situation where the screen hole 24 is blocked by slag, which affects the subsequent passage of slag.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A slag crushing device for underground coal mines, comprising a base (1), characterized in that: A fixed plate (2) is fixedly connected to one side of the upper end face of the base (1). A reinforcing rib (29) is provided on one side of the bottom of the fixed plate (2). Two rotating shafts (22) are rotatably provided on one side of the fixed plate (2). A crushing roller (13) is fixedly sleeved on the rotating shaft (22). A feed inlet (9) is fixedly connected to one side of the fixed plate (2). It also includes an integrated component for circulating lifting and screening; The integrated circulating lifting and screening component includes a crushing screen cylinder (4) rotatably mounted on one side of the fixed disk (2), a support column (5) fixedly connected to one side of the upper end face of the base (1), a control panel (23) provided on one side of the support column (5), one end of the crushing screen cylinder (4) rotatably mounted on the support column (5), multiple rows of screen holes (24) are evenly arranged along the circumference of the crushing screen cylinder (4), and multiple push plates (14) are evenly distributed and slidably connected along the circumference of the crushing screen cylinder (4).

2. The slag crushing device for underground coal mines according to claim 1, characterized in that: One end of the rotating shaft (22) is fixedly fitted with a gear (12), and the two gears (12) mesh with each other. A fixed seat (21) is fixedly connected to one side of the fixed disk (2), and a second motor (11) is fixedly connected to one side of the fixed seat (21). The output end of the second motor (11) is fixedly connected to one end of the rotating shaft (22).

3. The slag crushing device for underground coal mines according to claim 1, characterized in that: The first motor (6) is fixedly connected to one side of the upper end of the support column (5), and the output end of the first motor (6) is fixedly connected to one end of the crushing screen cylinder (4).

4. A slag crushing device for underground coal mines according to claim 1, characterized in that: A collection box (10) is placed on one side of the upper surface of the base (1).

5. A slag crushing device for underground coal mines according to claim 1, characterized in that: It also includes anti-slip cover components; The anti-slip cover assembly includes a cover plate (31), one end of which is rotatably mounted on a push plate (14).

6. A slag crushing device for underground coal mines according to claim 5, characterized in that: The push plate (14) has an installation cavity (27) on one side, and a third motor (20) is fixedly connected to one side of the inner cavity of the installation cavity (27). The output end of the third motor (20) is fixedly connected to one end of the cover plate (31).

7. A slag crushing device for underground coal mines according to claim 1, characterized in that: It also includes integrated anti-clogging and anti-jamming components; The anti-blocking and anti-jamming integrated component includes a support rod (3) fixedly connected to one side of the upper end of the fixed plate (2), a second cylinder (8) fixedly connected to one side of the support rod (3), and an mounting plate (17) fixedly connected to the piston end of the second cylinder (8).

8. A slag crushing device for underground coal mines according to claim 7, characterized in that: An electromagnet (30) is fixedly connected to the bottom of the mounting plate (17), and a magnetic block (28) is provided on one side of the push plate (14). The electromagnet (30) and the magnetic block (28) can attract each other.

9. A slag crushing device for underground coal mines according to claim 1, characterized in that: Both sides of the push plate (14) are slidably connected to slide rods (19). One end of the slide rod (19) is fixedly connected to a limit block (25). A spring (18) is sleeved on one side of the slide rod (19). One end of the spring (18) is fixedly connected to the limit block (25), and the other end is fixedly connected to the end of the slide rod (19).

10. A slag crushing device for underground coal mines according to claim 7, characterized in that: The first cylinder (7) is fixedly connected to one side of the support rod (3) via a connecting block (26). A fixing plate (15) is fixedly connected to the piston end of the first cylinder (7). Multiple unblocking blocks (16) are fixedly connected to the lower end face of the fixing plate (15). The unblocking blocks (16) are matched with the specifications of the sieve holes (24).

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