LU501111B1

LU501111B1 - Underground Crushing and Sieving Coal Gangue Separator

Info

Publication number: LU501111B1
Application number: LU501111A
Authority: LU
Inventors: Yonghuai Guo; Xi Wang; Kun Hu; Shuang Wang; Deyong Li
Original assignee: Univ Anhui Sci & Technology
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-06-28

Abstract

The disclosure relates to the field of coal gangue separation, and in particular, to an underground crushing and sieving coal gangue separator, including a mounting mechanism, a cleaning mechanism, a crushing mechanism, a linkage mechanism, a material pushing mechanism, and a sieving mechanism. Raw materials in a feeding hopper are pushed by the material pushing mechanism, so as to promote rolling of the raw materials and prevent the materials from being blocked in the feeding hopper.

Description

DESCRIPTION Underground Crushing and Sieving Coal Gangue Separator Technical Field

[0001] The disclosure relates to the field of coal gangue separation, and in particular, to an underground crushing and sieving coal gangue separator. Background

[0002] Coal gangue separators can realize coal gangue separation under mines and directly fill gangue under mines, which can greatly save transportation costs and also reduce pollution. The existing underground crushing and sieving coal gangue separators utilize a hardness difference between coal and gangue to selectively crush coal, so as to realize the separation of coal and gangue. However, due to sludge attached to the surface of coal gangue just mined, if the crushing strength is insufficient, it is difficult to crush some big pieces of coal with thick sludge attached. If the coal is to be completely crushed, it is necessary to increase the crushing strength, which will also cause a greater crushing effect on gangue, resulting in insufficient separation accuracy and poor separation effect.

Summary

[0003] In view of the problems in the prior art, the disclosure provides an underground crushing and sieving coal gangue separator.

[0004] A technical solution used by the disclosure to solve the technical problem thereof is as follows. An underground crushing and sieving coal gangue separator includes a mounting mechanism, a cleaning mechanism, a crushing mechanism, a linkage mechanism, a material pushing mechanism, and a sieving mechanism. The cleaning mechanism is mounted on one side of the mounting mechanism. The crushing mechanism is mounted inside the mounting mechanism. The linkage mechanism is mounted on a side surface of the mounting mechanism. The material pushing mechanism and the linkage mechanism are mounted on the same side of the mounting mechanism. The linkage mechanism connects the crushing mechanism and the material pushing mechanism. The sieving mechanism is mounted inside the mounting mechanism. The sieving mechanism is located below the crushing mechanism.

[0005] The mounting mechanism includes a cuboid-shaped cabinet. Two supporting stands are arranged at a lower end of the cabinet. A feeding hopper is arranged on one side of an upper end of the cabinet. An inclined feeding slide is arranged below the feeding hopper. A fine sieve is laid at the bottom of the feeding slide. A muddy water groove is provided below the fine sieve. A drainage pipe is arranged at a lower end of the muddy water groove. The drainage pipe extends to the outside of the cabinet. An acceleration sliding groove with a greater inclination angle is provided at a tail end of the feeding slide. A crushing groove is communicated below a tail end of the acceleration sliding groove. A sieving groove is provided at a lower end of the crushing groove. The sieving groove is divided into a coal slide and a gangue slide. The gangue slide is located on a side close to the muddy water groove. The coal slide is located on a side close to the crushing groove. An upper end of the sieving groove is provided with a square swinging groove. The swinging groove is located on a side of the crushing groove facing away from the muddy water groove. A limiting sliding groove is vertically provided on a side of the swinging groove facing away from the crushing groove. A linkage rotating groove is provided on a side of the limiting sliding groove away from the swinging groove.

[0006] Specifically, the cleaning mechanism includes a mud-water separator. The mud-water separator is mounted on one side of the cabinet. A hollow feeding pipe with a tapered end is arranged in the middle of the mud-water separator. An opening of the tapered end of the hollow feeding pipe is connected to the drainage pipe. À coaxial connecting shaft is arranged at a tail end of the hollow feeding pipe. A first motor is connected to a tail end of the connecting shaft. À conveying propeller is arranged outside the hollow feeding pipe. A discharge port is provided in the middle of the hollow feeding pipe. The hollow feeding pipe is sleeved with a sleeve. A mud discharge port is provided at a lower end of a tapered end of the sleeve. A water discharge port is provided at a lower end of the other end of the sleeve.

[0007] Specifically, the cleaning mechanism further includes a filter tank. The filter tank is mounted outside the cabinet. A water inlet of the filter tank is connected to the water discharge port. A water outlet of the filter tank is connected to a centrifugal pump. A water outlet of an upper end of the centrifugal pump is connected to a vertical water delivery pipe. A second motor is connected to a side of the centrifugal pump facing away from the filter tank. An upper end of the water delivery pipe is vertically communicated with a liquid adding pipe. One end of the liquid adding pipe is connected to a water passage pipeline. The water passage pipeline is mounted inside the cabinet. The water passage pipeline is located at an upper end of the feeding slide. A plurality of spray grooves are provided on an upper side surface of the feeding slide. One spray head is mounted in one spray groove. The spray heads are all communicated with the water passage pipeline.

[0008] Specifically, the crushing mechanism includes a first crushing hammer mounted in the crushing groove. Six crushing hammer heads are arranged at equal intervals outside the first crushing hammer. A first shaft rod extending to the outside of the cabinet is arranged in the middle of the first crushing hammer. The other end of the first shaft rod is coaxially provided with a first rotating wheel. À tail end of the first shaft rod is connected to a third motor. An impact toothed plate is mounted on a side of the crushing groove close to the acceleration sliding groove. A second crushing hammer is mounted below the impact toothed plate. À second shaft rod extending to the outside of the cabinet is arranged in the middle of the second crushing hammer. The other end of the second shaft rod is coaxially provided with a second rotating wheel. A tail end of the second shaft rod is connected to a fourth motor.

[0009] Specifically, the linkage mechanism includes a first gear. The first gear is mounted outside the cabinet. The first gear and the fourth motor are located on the same side. The first gear and the fourth motor have the same height. A coaxial third rotating wheel is mounted outside the first gear. The third rotating wheel is connected to the second rotating wheel through a first transmission belt. À second gear meshes with a side of the first gear facing away from the fourth motor. A fourth rotating wheel is coaxially arranged on the second gear. A third gear meshes directly below the first gear. A fifth rotating wheel is coaxially arranged on the third gear.

[0010] Specifically, the material pushing mechanism includes a pushing plate mounted at an upper port of the feeding slide. One side of the pushing plate is provided with a rotating shaft. The rotating shaft extends out of a side of the cabinet where the first gear is mounted. A tail end of the rotating shaft is fixedly connected to one end of a first connecting rod. The other end of the first connecting rod is movably connected to one end of a second connecting rod. The other end of the second connecting rod is movably connected to one end of a third connecting rod. The other end of the third connecting rod is mounted on a sixth rotating wheel. The sixth rotating wheel is mounted on a side wall of the cabinet. The sixth rotating wheel is located directly below the rotating shaft. A second transmission belt is sleeved between the sixth rotating wheel and the fourth rotating wheel.

[0011] Specifically, the sieving mechanism includes a vibrating sieve plate mounted obliquely in the sieving groove. An end of the vibrating sieve plate close to the gangue slide is lower. Both sides of the vibrating sieve plate are provided with a side plate separately. A plurality of rollers are arranged at equal intervals between the two side plates. A supporting shaft is arranged at the lower end of the vibrating sieve plate. The supporting shaft extends to the outside of the cabinet. A seventh rotating wheel is coaxially arranged at an outside end of the supporting shaft. A third transmission belt is sleeved between the seventh rotating wheel and the fifth rotating wheel. Synchronizing gears are coaxially arranged on the rollers and the supporting shaft. All the synchronizing gears are connected by a chain. Two connecting plates are vertically mounted at an end of the vibrating sieve plate facing away from the gangue slide. A bolt rod is arranged between the two connecting plates.

[0012] Specifically, the sieving mechanism further includes a linkage rotating rod mounted in the swinging groove. An upper end of the linkage rotating rod is provided with a linkage clamping groove. A fulcrum bolt rod passes through the middle of the linkage rotating rod. The fulcrum bolt rod is fixedly mounted at a lower end of the swinging groove. A lower end of the linkage rotating rod is movably connected to one end of a transition rod. The bolt rod movably passes through the other end of the transition rod. A linear sliding rod is mounted in the limiting sliding groove. An end of the linear sliding rod close to the swinging groove is provided with a linkage clamping bolt. The linkage clamping bolt is clamped in the linkage clamping groove. The other end of the linear sliding rod is fixedly connected to a linkage support rod. The other end of the linkage support rod is movably connected to one end of a linkage pushing rod. The other end of the linkage pushing rod is movably mounted at a wheel surface centrifugal position of a driving wheel. The driving wheel is mounted in the linkage rotating groove. A third shaft rod is coaxially arranged on a side of the driving wheel facing away from the linkage pushing rod. The third shaft rod extends out of a side surface of the cabinet where the third motor is located. An eighth rotating wheel is coaxially mounted at a tail end of the third shaft rod. A fourth transmission belt is sleeved between the eighth rotating wheel and the first rotating wheel.

[0013] The disclosure has the following beneficial effects. Materials are accelerated by an acceleration sliding groove, so that the materials enter a crushing groove at a certain speed, and an impact force is increased to ensure complete crushing. Coal gangue raw materials are washed by the cleaning mechanism, and sludge attached to the surface of coal is cleaned and separated, so that the coal is more easily crushed, and meanwhile, the cleaning mechanism can realize water recycling. A roller rotates anticlockwise, and can drive gangue and coal to move towards a lower end of a vibrating sieve plate. In cooperation with the continuous vibration of the vibrating sieve plate, small pieces of coal and gangue are caused to fall into a coal slide, while large pieces of gangue slide down along the vibrating sieve plate, so that coal gangue separation is realized. Brief Description of Figures

[0014] The disclosure will now be further described with reference to the accompanying drawings and examples.

[0015] FIG. 1 is a front-view appearance diagram of an underground crushing and sieving coal gangue separator according to the disclosure;

[0016] FIG. 2 is a front-view cross-sectional diagram of an underground crushing and sieving coal gangue separator according to the disclosure;

[0017] FIG. 3 is an enlarged structural diagram of part A of FIG. 2;

[0018] FIG. 4 is a top-view cross-sectional diagram of an underground crushing and sieving coal gangue separator according to the disclosure; and

[0019] FIG. 5 is a cross-sectional structural diagram of a mud-water separator according to the disclosure.

[0020] In the figures: 1, mounting mechanism; 11, cabinet; 12, supporting stand; 13, feeding hopper; 14, feeding slide; 15 fine sieve; 16, muddy water groove; 17, drainage pipe; 18, acceleration sliding groove; 19, crushing groove; 110, sieving groove; 111, coal slide; 112, gangue slide; 113, swinging groove; 114, limiting sliding groove; 115, linkage rotating groove; 2, cleaning mechanism; 21, mud-water separator; 211, hollow feeding pipe; 212, connecting shaft; 213, conveying propeller; 214, discharge port; 215, sleeve; 216, mud discharge port; 217, water discharge port; 22, first motor; 23, filter tank; 24, centrifugal pump; 25, water delivery pipe; 26, second motor; 27, liquid adding pipe; 28, water passage pipeline; 29, spray groove; 291, spray head; 3, crushing mechanism; 31, first crushing hammer; 32, crushing hammer head; 33, first shaft rod; 331, first rotating wheel; 34, third motor; 35, impact toothed plate; 36, second crushing hammer; 37, second shaft rod; 371, second rotating wheel; 38, fourth motor; 4, linkage mechanism; 41, first gear; 411,

third rotating wheel; 412, first transmission belt; 42, second gear; 421, fourth rotating wheel; 422, second transmission belt; 43, third gear; 431, fifth rotating wheel; 432, third transmission belt; 5, material pushing mechanism; 51, pushing plate; 52, rotating shaft; 53, first connecting rod; 54, second connecting rod; 55, third connecting rod; 56, sixth rotating wheel; 6, sieving mechanism; 61, vibrating sieve plate; 62, side plate; 63, roller; 64, supporting shaft; 641, seventh rotating wheel; 65, connecting plate; 66, synchronizing gear; 67, chain; 68, bolt rod; 69, transition rod; 610, linkage rotating rod; 611, fulcrum bolt rod; 612, linkage clamping groove; 613, linear sliding rod; 614, linkage clamping bolt; 615, linkage support rod; 616, driving wheel; 617, linkage pushing rod; 618, third shaft rod; 619, eighth rotating wheel; and 620, fourth transmission belt. Detailed Description

[0021] In order to make it easy to understand the technical means, creative features, objects and effects achieved by the disclosure, the disclosure will be further explained below in conjunction with detailed description.

[0022] As shown in FIGS. 1-5, an underground crushing and sieving coal gangue separator of the disclosure includes a mounting mechanism 1, a cleaning mechanism 2, a crushing mechanism 3, a linkage mechanism 4, a material pushing mechanism 5, and a sieving mechanism 6. The cleaning mechanism 2 is mounted on one side of the mounting mechanism 1. The crushing mechanism 3 is mounted inside the mounting mechanism 1. The linkage mechanism 4 is mounted on a side surface of the mounting mechanism 1. The material pushing mechanism 5 and the linkage mechanism 4 are mounted on the same side of the mounting mechanism 1. The linkage mechanism 4 connects the crushing mechanism 3 and the material pushing mechanism 5. The sieving mechanism 6 is mounted inside the mounting mechanism

1. The sieving mechanism 6 is located below the crushing mechanism 3.

[0023] The mounting mechanism 1 includes a cuboid-shaped cabinet 11. Two supporting stands 12 are arranged at a lower end of the cabinet 11. A feeding hopper 13 is arranged on one side of an upper end of the cabinet 11. An inclined feeding slide 14 is arranged below the feeding hopper 13. A fine sieve 15 is laid at the bottom of the feeding slide 14. A muddy water groove 16 is provided below the fine sieve 15. A drainage pipe 17 is arranged at a lower end of the muddy water groove 16. The drainage pipe 17 extends to the outside of the cabinet 11. An acceleration sliding groove 18 with a greater inclination angle is provided at a tail end of the feeding slide 14. A crushing groove 19 is communicated below a tail end of the acceleration sliding groove 18. A sieving groove 110 is provided at a lower end of the crushing groove 19. The sieving groove 110 is divided into a coal slide 111 and a gangue slide 112. The gangue slide 112 is located on a side close to the muddy water groove 16. The coal slide 111 is located on a side close to the crushing groove

19. An upper end of the sieving groove 110 is provided with a square swinging groove 113. The swinging groove 113 is located on a side of the crushing groove 19 facing away from the muddy water groove 16. A limiting sliding groove 114 is vertically provided on a side of the swinging groove 113 facing away from the crushing groove 19. A linkage rotating groove 115 is provided on a side of the limiting sliding groove 114 away from the swinging groove 113.

[0024] Specifically, the cleaning mechanism 2 includes a mud-water separator 21. The mud-water separator 21 is mounted on one side of the cabinet 11. A hollow feeding pipe 211 with a tapered end is arranged in the middle of the mud-water separator 21. An opening of the tapered end of the hollow feeding pipe 211 is connected to the drainage pipe 17. A coaxial connecting shaft 212 is arranged at a tail end of the hollow feeding pipe 211. A first motor 22 is connected to a tail end of the connecting shaft 212. A conveying propeller 213 is arranged outside the hollow feeding pipe 211. A discharge port 214 is provided in the middle of the hollow feeding pipe 211. The hollow feeding pipe 211 is sleeved with a sleeve 215. A mud discharge port 216 is provided at a lower end of a tapered end of the sleeve 215. A water discharge port 217 is provided at a lower end of the other end of the sleeve

215.

[0025] Specifically, the cleaning mechanism 2 further includes a filter tank 23. The filter tank 23 is mounted outside the cabinet 11. A water inlet of the filter tank 23 is connected to the water discharge port 217. À water outlet of the filter tank 23 is connected to a centrifugal pump 24. À water outlet of an upper end of the centrifugal pump 24 is connected to a vertical water delivery pipe 25. À second motor 26 is connected to a side of the centrifugal pump 24 facing away from the filter tank 23. An upper end of the water delivery pipe 25 is vertically communicated with a liquid adding pipe 27. One end of the liquid adding pipe 27 is connected to a water passage pipeline 28. The water passage pipeline 28 is mounted inside the cabinet 11. The water passage pipeline 28 is located at an upper end of the feeding slide 14. A plurality of spray grooves 29 are provided on an upper side surface of the feeding slide 14. One spray head 291 is mounted in one spray groove 29. The spray heads 291 are all communicated with the water passage pipeline 28.

[0026] Specifically, the crushing mechanism 3 includes a first crushing hammer 31 mounted in the crushing groove 19. Six crushing hammer heads 32 are arranged at equal intervals outside the first crushing hammer 31. A first shaft rod 33 extending to the outside of the cabinet 11 is arranged in the middle of the first crushing hammer

31. The other end of the first shaft rod 33 is coaxially provided with a first rotating wheel 331. A tail end of the first shaft rod 33 is connected to a third motor 34. An impact toothed plate 35 is mounted on a side of the crushing groove 19 close to the acceleration sliding groove 18. A second crushing hammer 36 is mounted below the impact toothed plate 35. A second shaft rod 37 extending to the outside of the cabinet 11 is arranged in the middle of the second crushing hammer 36. The other end of the second shaft rod 37 is coaxially provided with a second rotating wheel

371. À tail end of the second shaft rod 37 is connected to a fourth motor 38.

[0027] Specifically, the linkage mechanism 4 includes a first gear 41. The first gear 41 is mounted outside the cabinet 11. The first gear 41 and the fourth motor 38 are located on the same side. The first gear 41 and the fourth motor 38 have the same height. À coaxial third rotating wheel 411 is mounted outside the first gear 41. The third rotating wheel 411 is connected to the second rotating wheel 371 through a first transmission belt 412. A second gear 42 meshes with a side of the first gear 41 facing away from the fourth motor 38. A fourth rotating wheel 421 is coaxially arranged on the second gear 42. A third gear 43 meshes directly below the first gear

41. A fifth rotating wheel 431 is coaxially arranged on the third gear 43.

[0028] Specifically, the material pushing mechanism 5 includes a pushing plate 51 mounted at an upper port of the feeding slide 14. One side of the pushing plate 51 is provided with a rotating shaft 52. The rotating shaft 52 extends out of a side of the cabinet 11 where the first gear 41 is mounted. A tail end of the rotating shaft 52 is fixedly connected to one end of a first connecting rod 53. The other end of the first connecting rod 53 is movably connected to one end of a second connecting rod 54. The other end of the second connecting rod 54 is movably connected to one end of a third connecting rod 55. The other end of the third connecting rod 55 is mounted on a sixth rotating wheel 56. The sixth rotating wheel 56 is mounted on a side wall of the cabinet 11. The sixth rotating wheel 56 is located directly below the rotating shaft 52. À second transmission belt 422 is sleeved between the sixth rotating wheel 56 and the fourth rotating wheel 421.

[0029] Specifically, the sieving mechanism 6 includes a vibrating sieve plate 61 mounted obliquely in the sieving groove 110. An end of the vibrating sieve plate 61 close to the gangue slide 112 is lower. Both sides of the vibrating sieve plate 61 are provided with a side plate 62 separately. A plurality of rollers 63 are arranged at equal intervals between the two side plates 62. A supporting shaft 64 is arranged at the lower end of the vibrating sieve plate 61. The supporting shaft 64 extends to the outside of the cabinet 11. A seventh rotating wheel 641 is coaxially arranged at an outside end of the supporting shaft 64. A third transmission belt 432 is sleeved between the seventh rotating wheel 641 and the fifth rotating wheel 431. Synchronizing gears 66 are coaxially arranged on the rollers 63 and the supporting shaft 64. All the synchronizing gears 66 are connected by a chain 67. Two connecting plates 65 are vertically mounted at an end of the vibrating sieve plate 61 facing away from the gangue slide 112. A bolt rod 68 is arranged between the two connecting plates 65.

[0030] Specifically, the sieving mechanism 6 further includes a linkage rotating rod 610 mounted in the swinging groove 113. An upper end of the linkage rotating rod

610 is provided with a linkage clamping groove 612. A fulcrum bolt rod 611 passes through the middle of the linkage rotating rod 610. The fulcrum bolt rod 611 is fixedly mounted at a lower end of the swinging groove 113. A lower end of the linkage rotating rod 610 is movably connected to one end of a transition rod 69. The bolt rod 68 movably passes through the other end of the transition rod 69. A linear sliding rod 613 is mounted in the limiting sliding groove 114. An end of the linear sliding rod 613 close to the swinging groove 113 is provided with a linkage clamping bolt 614. The linkage clamping bolt 614 is clamped in the linkage clamping groove

612. The other end of the linear sliding rod 613 is fixedly connected to a linkage support rod 615. The other end of the linkage support rod 615 is movably connected to one end of a linkage pushing rod 617. The other end of the linkage pushing rod 617 is movably mounted at a wheel surface centrifugal position of a driving wheel

616. The driving wheel 616 is mounted in the linkage rotating groove 115. A third shaft rod 618 is coaxially arranged on a side of the driving wheel 616 facing away from the linkage pushing rod 617. The third shaft rod 618 extends out of a side surface of the cabinet 11 where the third motor 34 is located. An eighth rotating wheel 619 is coaxially mounted at a tail end of the third shaft rod 618. A fourth transmission belt 620 is sleeved between the eighth rotating wheel 619 and the first rotating wheel 331.

[0031] When the underground crushing and sieving coal gangue separator is in use, the first motor 22 and the second motor 26 are started.

The first motor 22 drives the hollow feeding pipe 211 in the mud-water separator 21 to rotate and the conveying propeller 213 to rotate.

The second motor 26 drives the centrifugal pump 24. The liquid adding pipe 27 is connected to an external water source to deliver clear water.

[0032] The third motor 34 is started to drive the first shaft rod 33 to rotate anticlockwise and the first crushing hammer 31 to rotate anticlockwise.

The first rotating wheel 331 on the first shaft rod 33 drives the eighth rotating wheel 619 to rotate through the fourth transmission belt 620. The third shaft rod 618 drives the driving wheel 616 to rotate.

An end of the linkage pushing rod 617 movably mounted at a centrifugal part of the wheel surface of the driving wheel 616 performs a circular motion, while the linear sliding rod 613 movably connected to the other end of the linkage pushing rod 617 can only perform a linear motion.

Therefore, during the rotation of the driving wheel 616, the linkage pushing rod 617 drives the linear sliding rod 613 to perform a linear reciprocating motion.

Since the linkage clamping bolt 614 at the other end of the linear sliding rod 613 is clamped in the linkage clamping groove 612 at the upper end of the linkage rotating rod 610, when the linear sliding rod 613 performs a linear reciprocating motion, the linkage rotating rod 610 is also driven to perform a repeated swinging motion using the fulcrum bolt rod 611 as an axis, a connecting end of the transition rod 69 and the linkage rotating rod 610 performs a reciprocating swinging motion, and a lower end of the transition rod 69 is connected to the bolt rod 68 on the connecting plate 65, so that a high end of the vibrating sieve plate 61 is driven to vibrate up and down, i.e. the vibrating sieve plate 61 continuously vibrates using the supporting shaft 64 as a fulcrum.

The fourth motor 38 is started to drive the second shaft rod 37 to rotate clockwise.

The second crushing hammer 36 and the second rotating wheel 371 rotate clockwise.

The second rotating wheel 371 drives the coaxial third rotating wheel 411 and the first gear 41 to rotate clockwise through the first transmission belt 412. The second gear 42 and the third gear 43 meshing with the first gear 41 rotate anticlockwise.

The fifth rotating wheel 431 on the third gear 43 drives the seventh rotating wheel 641 to rotate anticlockwise.

The supporting shaft 64 on the vibrating sieve plate 61 is driven to rotate anticlockwise.

The synchronizing gears 66 on the supporting shaft 64 drive the synchronizing gears 66 on the rollers 63 to rotate through the chain 67, thereby driving the rollers 63 to rotate anticlockwise.

The fourth rotating wheel 421 on the second gear 42 drives the sixth rotating wheel 56 to rotate through the second transmission belt 422. The third connecting rod 55 performs a continuous and stable circular motion with the sixth rotating wheel 56. An end of the second connecting rod 54 connected to a front end of the third connecting rod 55 performs a circular motion, and the other end is limited by the first connecting rod 53. Therefore, a connecting end of the second connecting rod 54 and the first connecting rod 53 performs an obtuse angle reciprocating rotation using the rotating shaft 52 as an axis, and then drives the pushing plate 51 to repeatedly swing, so as to push materials in the feeding slide 14 and promote the materials to slide.

Coal gangue raw materials are poured into the feeding slide 14 through the feeding hopper 13. The pushing plate 51 performs a repeated swinging motion to push the coal gangue raw materials to slide down in the feeding slide 14. Clear water input in the liquid adding pipe 27 enters the water passage pipeline 28, and is sprayed onto the coal gangue raw materials through the spray heads 291 to clean soil on the surface of the coal gangue raw materials.

Muddy water flows into the muddy water groove 16 through the fine sieve 15, and enters the hollow feeding pipe 211 in the mud-water separator 21 through the drainage pipe 17. The hollow feeding pipe 211 is driven by the first motor 22 to rotate.

The muddy water enters the sleeve 215 via the discharge port 214. Then solid particles in the muddy water are conveyed to the mud discharge port 216 via the conveying action of the conveying propeller 213 and discharged, while liquid flows to the water discharge port 217 and flows into the filter tank 23. The liquid which has undergone solid-liquid separation is further filtered through the filter tank 23, and micro particles therein are adsorbed and filtered.

Then filtrate is conveyed via the centrifugal pump 24, enters the liquid adding pipe 27 through the water delivery pipe 25, is mixed with the clear water in the liquid adding pipe 27 and enters the water passage pipeline 28. The mixed liquid is sprayed into the feeding slide 14 through the spray heads 291, coal and gangue therein are washed, and muddy water formed penetrates through the fine sieve 15 into the muddy water groove 16, is uniformly drained into the mud-water separator 21 via the drainage pipe 17, and is then subjected to cycling filtration, so as to realize the recycling of water resources and save water.

The cleaned coal gangue enters the crushing groove 19. The first crushing hammer 31 performs first crushing on a large piece of coal, and impacts coal gangue on the impact toothed plate 35 to perform impact crushing.

Then the coal gangue falls to the second crushing hammer 36 to perform second crushing on the coal, so as to achieve multiple crushing and ensure complete crushing.

The crushed coal gangue falls onto the vibrating sieve plate 61, and the rollers 63 on the vibrating sieve plate 61 rotate anticlockwise, so as to promote the coal gangue to slide down.

Meanwhile, the vibrating sieve plate 61 performs continuous vibration with the supporting shaft 64 at the bottom end as a fulcrum, so as to ensure that the coal gangue can slide down.

Meanwhile, a large piece of gangue does not block at a gap between the rollers 63. During the downward sliding of the crushed coal and gangue, small pieces of coal and gangue fall into the coal slide 111 through the gap between the rollers 63 to be discharged.

The bottom of the coal slide 111 collects mixtures of the crushed small pieces of coal and small pieces of gangue, and the mixtures are transported out of a mine.

The large pieces of gangue slide down along the vibrating sieve plate 61 into the gangue slide 112 to be discharged for laying raw materials on roads under the mine.

Claims

Claims:

1. An underground crushing and sieving coal gangue separator, comprising a mounting mechanism (1), a cleaning mechanism (2), a crushing mechanism (3), a linkage mechanism (4), a material pushing mechanism (5), and a sieving mechanism (6), wherein the cleaning mechanism (2) is mounted on one side of the mounting mechanism (1), the crushing mechanism (3) is mounted inside the mounting mechanism (1), the linkage mechanism (4) is mounted on a side surface of the mounting mechanism (1), the material pushing mechanism (5) and the linkage mechanism (4) are mounted on the same side of the mounting mechanism (1), the linkage mechanism (4) connects the crushing mechanism (3) and the material pushing mechanism (5), the sieving mechanism (6) is mounted inside the mounting mechanism (1), and the sieving mechanism (6) is located below the crushing mechanism (3); and the mounting mechanism (1) comprises a cuboid-shaped cabinet (11), two supporting stands (12) are arranged at a lower end of the cabinet (11), a feeding hopper (13) is arranged on one side of an upper end of the cabinet (11), an inclined feeding slide (14) is arranged below the feeding hopper (13), a fine sieve (15) is laid at the bottom of the feeding slide (14), a muddy water groove (16) is provided below the fine sieve (15), a drainage pipe (17) is arranged at a lower end of the muddy water groove (16), the drainage pipe (17) extends to the outside of the cabinet (11), an acceleration sliding groove (18) with a greater inclination angle is provided at a tail end of the feeding slide (14), a crushing groove (19) is communicated below a tail end of the acceleration sliding groove (18), a sieving groove (110) is provided at a lower end of the crushing groove (19), the sieving groove (110) is divided into a coal slide (111) and a gangue slide (112), the gangue slide (112) is located on a side close to the muddy water groove (16), the coal slide (111) is located on a side close to the crushing groove (19), an upper end of the sieving groove (110) is provided with a square swinging groove (113), the swinging groove (113) is located on a side of the crushing groove (19) facing away from the muddy water groove (16), a limiting sliding groove (114) is vertically provided on a side of the swinging groove (113) facing away from the crushing groove (19), and a linkage rotating groove (115) is provided on a side of the limiting sliding groove (114) away from the swinging groove (113).

2. The underground crushing and sieving coal gangue separator according to claim 1, wherein the cleaning mechanism (2) comprises a mud-water separator (21), the mud-water separator (21) is mounted on one side of the cabinet (11), a hollow feeding pipe (211) with a tapered end is arranged in the middle of the mud-water separator (21), an opening of the tapered end of the hollow feeding pipe (211) is connected to the drainage pipe (17), a coaxial connecting shaft (212) is arranged at a tail end of the hollow feeding pipe (211), a first motor (22) is connected to a tail end of the connecting shaft (212), a conveying propeller (213) is arranged outside the hollow feeding pipe (211), a discharge port (214) is provided in the middle of the hollow feeding pipe (211), the hollow feeding pipe (211) is sleeved with a sleeve (215), a mud discharge port (216) is provided at a lower end of a tapered end of the sleeve (215), and a water discharge port (217) is provided at a lower end of the other end of the sleeve (215).

3. The underground crushing and sieving coal gangue separator according to claim 2, wherein the cleaning mechanism (2) further comprises a filter tank (23), the filter tank (23) is mounted outside the cabinet (11), a water inlet of the filter tank (23) is connected to the water discharge port (217), a water outlet of the filter tank (23) is connected to a centrifugal pump (24), a water outlet of an upper end of the centrifugal pump (24) is connected to a vertical water delivery pipe (25), a second motor (26) is connected to a side of the centrifugal pump (24) facing away from the filter tank (23), an upper end of the water delivery pipe (25) is vertically communicated with a liquid adding pipe (27), one end of the liquid adding pipe (27) is connected to a water passage pipeline (28), the water passage pipeline (28) is mounted inside the cabinet (11), the water passage pipeline (28) is located at an upper end of the feeding slide (14), a plurality of spray grooves (29) are provided on an upper side surface of the feeding slide (14), one spray head (291) is mounted in one spray groove (29), and the spray heads (291) are all communicated with the water passage pipeline (28).

4, The underground crushing and sieving coal gangue separator according to claim 3, wherein the crushing mechanism (3) comprises a first crushing hammer (31) mounted in the crushing groove (19), six crushing hammer heads (32) are arranged at equal intervals outside the first crushing hammer (31), a first shaft rod (33) extending to the outside of the cabinet (11) is arranged in the middle of the first crushing hammer (31), the other end of the first shaft rod (33) is coaxially provided with a first rotating wheel (331), a tail end of the first shaft rod (33) is connected to a third motor (34), an impact toothed plate (35) is mounted on a side of the crushing groove (19) close to the acceleration sliding groove (18), a second crushing hammer (36) is mounted below the impact toothed plate (35), a second shaft rod (37) extending to the outside of the cabinet (11) is arranged in the middle of the second crushing hammer (36), the other end of the second shaft rod (37) is coaxially provided with a second rotating wheel (371), and a tail end of the second shaft rod (37) is connected to a fourth motor (38).

5. The underground crushing and sieving coal gangue separator according to claim 4, wherein the linkage mechanism (4) comprises a first gear (41), the first gear

(41) is mounted outside the cabinet (11), the first gear (41) and the fourth motor (38) are located on the same side, the first gear (41) and the fourth motor (38) have the same height, a coaxial third rotating wheel (411) is mounted outside the first gear (41), the third rotating wheel (411) is connected to the second rotating wheel (371) through a first transmission belt (412), a second gear (42) meshes with a side of the first gear (41) facing away from the fourth motor (38), a fourth rotating wheel (421) is coaxially arranged on the second gear (42), a third gear (43) meshes directly below the first gear (41), and a fifth rotating wheel (431) is coaxially arranged on the third gear (43).

6. The underground crushing and sieving coal gangue separator according to claim 5, wherein the material pushing mechanism (5) comprises a pushing plate (51) mounted at an upper port of the feeding slide (14), one side of the pushing plate (51) is provided with a rotating shaft (52), the rotating shaft (52) extends out of a side of the cabinet (11) where the first gear (41) is mounted, a tail end of the rotating shaft (52) is fixedly connected to one end of a first connecting rod (53), the other end of the first connecting rod (53) is movably connected to one end of a second connecting rod (54), the other end of the second connecting rod (54) is movably connected to one end of a third connecting rod (55), the other end of the third connecting rod (55) is mounted on a sixth rotating wheel (56), the sixth rotating wheel (56) is mounted on a side wall of the cabinet (11), the sixth rotating wheel (56)

is located directly below the rotating shaft (52), and a second transmission belt (422) is sleeved between the sixth rotating wheel (56) and the fourth rotating wheel (421).

7. The underground crushing and sieving coal gangue separator according to claim 6, wherein the sieving mechanism (6) comprises a vibrating sieve plate (61) mounted obliquely in the sieving groove (110), an end of the vibrating sieve plate (61) close to the gangue slide (112) is lower, both sides of the vibrating sieve plate (61) are provided with a side plate (62) separately, a plurality of rollers (63) are arranged at equal intervals between the two side plates (62), a supporting shaft (64) is arranged at the lower end of the vibrating sieve plate (61), the supporting shaft (64) extends to the outside of the cabinet (11), a seventh rotating wheel (641) is coaxially arranged at an outside end of the supporting shaft (64), a third transmission belt (432) is sleeved between the seventh rotating wheel (641) and the fifth rotating wheel (431), synchronizing gears (66) are coaxially arranged on the rollers (63) and the supporting shaft (64), all the synchronizing gears (66) are connected by a chain (67), two connecting plates (65) are vertically mounted at an end of the vibrating sieve plate (61) facing away from the gangue slide (112), and a bolt rod (68) is arranged between the two connecting plates (65).

8. The underground crushing and sieving coal gangue separator according to claim 7, wherein the sieving mechanism (6) further comprises a linkage rotating rod (610) mounted in the swinging groove (113), an upper end of the linkage rotating rod (610) is provided with a linkage clamping groove (612), a fulcrum bolt rod (611) passes through the middle of the linkage rotating rod (610), the fulcrum bolt rod (611) is fixedly mounted at a lower end of the swinging groove (113), a lower end of the linkage rotating rod (610) is movably connected to one end of a transition rod (69), the bolt rod (68) movably passes through the other end of the transition rod (69), a linear sliding rod (613) is mounted in the limiting sliding groove (114), an end of the linear sliding rod (613) close to the swinging groove (113) is provided with a linkage clamping bolt (614), the linkage clamping bolt (614) is clamped in the linkage clamping groove (612), the other end of the linear sliding rod (613) is fixedly connected to a linkage support rod (615), the other end of the linkage support rod (615) is movably connected to one end of a linkage pushing rod (617), the other end of the linkage pushing rod (617) is movably mounted at a wheel surface centrifugal position of a driving wheel (616), the driving wheel (616) is mounted in the linkage rotating groove (115), a third shaft rod (618) is coaxially arranged on a side of the driving wheel (616) facing away from the linkage pushing rod (617), the third shaft rod (618) extends out of a side surface of the cabinet (11) where the third motor (34) is located, an eighth rotating wheel (619) is coaxially mounted at a tail end of the third shaft rod (618), and a fourth transmission belt (620) is sleeved between the eighth rotating wheel (619) and the first rotating wheel (331).