A fine particle coal slime crusher for preventing broken particles from adhering to the inner wall

Abstract

The present invention discloses a fine particle coal slime crusher for preventing broken particles from adhering to the inner wall, which relates to the technical field of coal slime crushing, and includes a crusher main body; a crushing assembly is arranged inside the crusher main body. In the present invention, the coal slime is transported by the first conveyor belt. The two sides of the sorting block are arranged in an inclined plane. The coal slime with lower viscosity falls onto the surface of the diversion plate along the inclined arc of the sorting block, and is pushed to the front end of the diversion plate and sent into the drying box under the action of the transport plate. The coal slime with higher viscosity is directly sent into the pretreatment cylinder for pretreatment such as refrigeration under the action of the sorting block, and after passing through the pretreatment, it falls above the second conveyor belt and is transported to the crusher main body by the second conveyor belt for crushing treatment. The adhesiveness of the coal slime after sorting and pretreatment is reduced, the situation of the coal slime adhering to the inner wall during the crushing process is reduced, and further, the phenomenon that the coal slime blocks the discharge port or the cutter tooth gap, resulting in the obstruction of material flow and the decline of crushing efficiency, is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of coal slime crushing, and in particular to a fine-particle coal slime crusher capable of preventing crushed particles from adhering to an inner wall. Background Art

[0002] Coal slime refers to a semi-solid substance formed by coal powder containing water. It is a product in the coal production process. Depending on the variety and formation mechanism, its properties vary greatly, and its availability also varies greatly. There are many types and a wide range of uses.

[0003] At present, coal mines and coal preparation enterprises basically use coal slime drying equipment. Most of the drying equipment uses coal combustion to generate a high-temperature drying furnace to dehydrate the coal slime, and then carry out a crushing process. This method has many disadvantages such as high noise and dust on site, high labor costs, and poor safety. The coal slime on the market enters the direct crushing equipment, and the crushing effect is poor. After crushing, the coal slime particles are large, generally more than 50mm, and cannot be evenly scattered on the clean coal flow. It is very easy to gather into large pieces of coal slime for the second time, resulting in unstable calorific value of clean coal and affecting the quality of commercial coal.

[0004] A Chinese patent document discloses a fine-particle coal sludge cake crusher (CN112934413B) that prevents crushed particles from adhering to the inner wall, comprising a machine body, a crushing structure and a drive motor; wherein the machine body is composed of a base and a crushing bin with inclined side walls, one end of the base is a discharge port at the bottom of the crushing bin, and the other end is equipped with a drive motor; the drive motor is connected to the crushing structure fixed in the crushing bin through a power transmission system, driving the teeth on the crushing structure to mesh and operate, and crushing the coal sludge cake placed in the crushing bin; however, there are still the following defects in the implementation process:

[0005] Although the device in the above-mentioned document can reduce the adhesion of the coal slime cake to the inner wall of the crushing bin by arranging two sets of tooth rollers in parallel and parallel to the inclined side wall, and the inclined side wall forms an angle with the bottom, the coal slime cake can be crushed. However, the viscosity of the coal slime increases after absorbing moisture during storage or processing. If the coal slime is dried and heated to remove moisture, the clay minerals in the coal slime will melt and increase the adhesion. The viscosity of some coal slime accumulated on the periphery is lower than that of the coal slime inside. In the process of drying the coal slime, insufficient and uneven drying will occur, resulting in some coal slime still adhering to the inner wall of the equipment, which in turn leads to obstruction of coal slime flow and reduces the efficiency of crushing. The adhesive falls off and mixes into the finished product, resulting in different sizes of coal slime particles, affecting subsequent combustion or processing performance. Summary of the invention

[0006] The object of the present invention is to provide a fine particle coal slime crusher which can prevent crushed particles from adhering to the inner wall, so as to solve the problem in the above background technology that insufficient drying causes coal slime to adhere to the inner wall.

[0007] To solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0008] A fine particle coal slime crusher for preventing broken particles from adhering to the inner wall, comprising a crusher main body; a crushing assembly is arranged inside the crusher main body, a first conveyor belt is arranged on one side of the crusher main body, a pretreatment cylinder is fixedly connected to the bottom of the first conveyor belt, a second conveyor belt is fixedly connected to the bottom of the pretreatment cylinder, a drying box is fixedly connected to one end of the second conveyor belt away from the pretreatment cylinder, and a sorting assembly is arranged on the top of the first conveyor belt;

[0009] The sorting assembly includes a sorting block fixedly connected to the top of the first conveyor belt. The sorting block is trapezoid-shaped, and a plurality of conveying plates are fixedly connected to both sides of the sorting block. Flow dividing plates are fixedly connected to both sides of the inner side wall of the first conveyor belt, and the conveying plates and the flow dividing plates are slidably connected; a semiconductor refrigerating sheet is arranged on the inner wall of the pretreatment cylinder, and the semiconductor refrigerating sheet is used to transfer cold to the inner wall of the pretreatment cylinder to realize the freezing function. A pretreatment assembly is arranged inside the pretreatment cylinder, and the pretreatment assembly is used to evenly apply the sorted coal slime on the inner wall of the pretreatment cylinder.

[0010] Adopting the above technical solution, in this solution, the coal slime is transported by the arranged first conveyor belt. During the transportation process, the first conveyor belt generates vibrations to make the coal slime accumulated on its surface loose. The two sides of the sorting block on the surface of the first conveyor belt are inclined. During the transportation process, the coal slime with lower viscosity falls onto the surface of the flow dividing plate along the inclined arc of the sorting block, and is pushed to the front end of the flow dividing plate and sent into the drying box under the action of the conveying plate. At the same time, the coal slime with higher viscosity is directly sent into the pretreatment cylinder for freezing pretreatment under the action of the sorting block, and after passing through the pretreatment, it falls above the second conveyor belt and is transported to the crusher main body through the second conveyor belt for crushing treatment. After sorting and pretreatment, the adhesiveness of the coal slime is reduced, the situation of the coal slime adhering to the inner wall during the crushing process is reduced, and further, the phenomenon that the coal slime blocks the discharge port or the cutter tooth gap, resulting in the obstruction of material flow and the decline of crushing efficiency, is reduced.

[0011] A further improvement of the technical solution of the present invention lies in that: the pretreatment assembly includes a storage bucket arranged on the inner wall of the pretreatment cylinder. Limiting strips are symmetrically and fixedly connected to the outer wall of the storage bucket. Electric push rods are fixedly connected to the inner side walls of the two limiting strips. The output end of one of the electric push rods is fixedly connected to a second hollow rod, and the output end of the other electric push rod is fixedly connected to a scraping plate. The output end of the electric push rod away from the second hollow rod is fixedly connected to a scraping plate. One end of the second hollow rod is slidably connected to a first hollow rod, and one end of the first hollow rod is fixedly connected to a coating plate. The outer walls of the coating plate and the scraping plate are both in contact with the inner side wall of the pretreatment cylinder.

[0012] With the above technical solution, after one week of applying the coal slime, the coating plate adjusts its position under the action of the electric push rod to continue the application. At this time, the scraping plate switches its position under the action of the electric push rod at its bottom, and scrapes the coal slime initially applied on the inner wall of the pretreatment cylinder. The scraping plate and the coating plate work alternately, making the application of the coal slime more uniform and the freezing effect better.

[0013] A further improvement of the technical solution of the present invention lies in that: a feed frame is fixedly connected to the outer wall of the storage bucket, a second motor is fixedly connected to the inner side wall of the storage bucket, the output end of the second motor is fixedly connected with a first bevel gear, the outer wall of the first bevel gear is meshed with a second bevel gear, the top of the second bevel gear is rotationally connected to the inner wall of the storage bucket, the bottom of the second bevel gear is fixedly connected with a second support rod, the outer wall of the first bevel gear is meshed with a third bevel gear, the bottom of the third bevel gear is fixedly connected with a first support rod, a baffle is fixedly connected to the inner wall of the storage bucket, the baffle is rotationally connected to the first support rod, a fixed square rod is slidably connected to the inner wall of the first support rod, the bottom of the fixed square rod is fixedly connected with an extrusion plate, the outer wall of the extrusion plate is threadedly connected to the inner wall of the storage bucket, a feed pipe is fixedly connected to the bottom of the storage bucket, a filter screen plate is arranged inside the feed pipe, the bottom of the second support rod is rotationally connected to the filter screen plate, and the feed pipe is fixedly connected to the second hollow rod.

[0014] With the above technical solution, when the coal slime enters the storage bucket through the feed frame, the extrusion plate moves downward through the cooperation of the fixed square rod and the first support rod, and the second support rod rotates under the action of the second bevel gear, so that the material enters the feed pipe. It should be noted that a filter screen plate is arranged inside the feed pipe. When the second support rod rotates, the particulate impurities in the coal slime adhere to the filter screen plate under the action of centrifugal force, reducing the impurities in the coal slime while transporting the material.

[0015] A further improvement of the technical solution of the present invention lies in that: a fixed top cover is rotationally connected to the top of the storage bucket, the fixed top cover is fixedly connected to the pretreatment cylinder, a first motor is fixedly connected to the top of the fixed top cover, the output end of the first motor is connected to the top of the storage bucket, a third fixed block is fixedly connected to the inner side wall of the fixed top cover, a chute is opened at the top of the storage bucket, the third fixed block is slidably connected to the chute, and the coating plate is arranged in an S shape.

[0016] With the above technical solution, the storage bucket is connected to the fixed top cover. When the fixed top cover rotates under the action of the first motor at its top, the third fixed block inside it slides in the chute, causing the storage bucket to float up and down. Therefore, after the coal slime is extruded into the feed pipe, it is transported to the coating plate, and the coating plate moves synchronously with the storage bucket.

[0017] A further improvement of the technical solution of the present invention lies in that: a plugging ball is rotatably connected to the inner wall of the first hollow rod, a through hole is provided on the plugging ball, the central axis of the plugging ball extends to the outside of the first hollow rod and is fixedly connected with an adjusting gear, the outer wall of the adjusting gear is meshed with a rack, the rack is fixedly connected with the second hollow rod, and a plurality of first fixing blocks are fixedly connected to the inner wall of the pretreatment cylinder.

[0018] With the above technical solution, when the coating plate contacts the first fixing block during the coating process in this solution, the first hollow rod will contract into the second hollow rod under the action of the spring inside it. At this time, the plugging ball flips, so that the slime stops entering the coating plate, and continues to feed after the first hollow rod resets. Under the action of this structure, intermittent coating is realized, making the freezing effect of the slime better and making it more convenient for the scraping plate to perform the scraping work.

[0019] A further improvement of the technical solution of the present invention lies in that: a first telescopic rod is fixedly connected to the top of the scraping plate, a limiting block is fixedly connected to the top of the first telescopic rod, a triangular inclined block is fixedly connected to the top of the limiting block, a first limiting rod is slidably connected to the middle position of the limiting block, the top of the first limiting rod is fixedly connected to the fixed top cover, a first spring is arranged on the outer wall of the first limiting rod, the bottom of the first spring is fixedly connected to the limiting block, a plurality of second fixing blocks are fixedly connected to the bottom of the fixed top cover, and the triangular inclined block is slidably connected to the second fixing blocks.

[0020] With the above technical solution, when the inclined surface of the triangular inclined block abuts against the inclined surface of the second fixing block in this solution, the limiting block is squeezed and moves downward, and after the triangular inclined block passes the second fixing block, it resets under the action of the first spring, so as to generate jitter during the scraping process, making the scraping more thorough and further increasing the uniformity of the slime coating.

[0021] A further improvement of the technical solution of the present invention lies in that: the crushing assembly includes an arc-shaped baffle fixedly connected inside the crusher main body, a feeding plate is rotatably connected to the middle position of the arc-shaped baffle, one end of the feeding plate is connected to the output end of an external motor, two cutting blades are fixedly connected to the inner side wall of the crusher main body, the outer walls of the two cutting blades are alternately inserted, an inner support rod is fixedly connected to the inside of the cutting blade, air permeation grooves are provided on the outer wall of the inner support rod, a fixed disc is fixedly connected to one end of the cutting blade, a second spring is fixedly connected to one end of the fixed disc, a piston plate is fixedly connected to one side of the second spring, the piston plate is attached to the inner wall of the inner support rod, two partition plates are fixedly connected to the inner wall of the inner support rod, exhaust holes are provided at the bottom of the partition plates, one-way valves are arranged at the middle positions of the exhaust holes, one-way valves are arranged at the bottom of the piston plate, and a vibration motor is arranged at the end of the second spring away from the fixed disc.

[0022] With the above technical solution, in this solution, two groups of cutting blades are arranged staggeredly, and a vibration motor is also arranged at one end of them. While cutting and crushing staggeredly, it also generates jitter to reduce the adhesion of slime. It should be noted that when the vibration motor is working, the piston plate slides in the inner support rod and squeezes the gas to the middle position of the inner support rod. The gas is blown into the cutting blades through the air permeable grooves, and then the residues on the surface of the cutting blades are blown off to reduce the adhesion of slime.

[0023] A further improvement of the technical solution of the present invention lies in that: a fixed frame is fixedly connected to the inner wall of the crusher main body, a buffer pad is fixedly connected to the inner side wall of the fixed frame, a screening plate is inserted at the middle position of the buffer pad, a third spring is fixedly connected to the top of the screening plate, a baffle plate is fixedly connected to the bottom of the fixed frame, a plurality of second limiting rods are fixedly connected to the bottom of the screening plate, the outer walls of the second limiting rods are all sleeved with fourth springs, the bottoms of the second limiting rods are all fixedly connected with extrusion pieces, a plurality of connecting rods are fixedly connected to the inner side wall of the crusher main body, an arched plate is fixedly connected to one side of the connecting rod, a plurality of fixing rods are fixedly connected to the side of the arched plate close to the crusher main body, and the extrusion pieces are in contact with the inner side wall of the arched plate.

[0024] With the above technical solution, the middle position of the baffle plate in this solution can be turned over to reduce the flying of the dust raised by the slime. Specifically, when the screening plate is impacted and displaced downward, it squeezes the second limiting rods to move downward. At this time, the extrusion pieces slide on the side of the arched plate, so that the fixing rods can knock on the inner wall of the crusher main body to further reduce the adhesion of slime to the inner wall.

[0025] A further improvement of the technical solution of the present invention lies in that: a drying cylinder is arranged inside the drying box, a spray gun is fixedly connected to one side of the drying box, the output end of the spray gun is arranged inside the crusher main body, and the spray gun is connected to an external air pump through a pipeline.

[0026] With the above technical solution, the slime with lower viscosity selected is sent into the drying box for drying treatment, and the dried slime is sprayed into the crusher main body through the spray gun. It should be noted that the slime is sprayed in a mist shape and mixed with the frozen slime to reduce the phenomenon of agglomeration.

[0027] Due to the adoption of the above technical solution, the technical progress achieved by the present invention compared with the prior art is:

[0028] 1. The present invention provides a fine particle coal slime crusher for preventing broken particles from adhering to the inner wall. The coal slime is transported by a first conveyor belt. During the transportation process, the first conveyor belt vibrates to make the coal slime accumulated on its surface loose. The two sides of the sorting blocks on the surface of the first conveyor belt are arranged in an inclined plane. During the transportation process, the coal slime with lower viscosity falls onto the surface of the diversion plate along the inclined arc of the sorting blocks, and is pushed to the front end of the diversion plate and sent into the drying box under the action of the transportation plate. At the same time, the coal slime with higher viscosity is directly sent into the pretreatment cylinder for ice pretreatment under the action of the sorting blocks, and after pretreatment, it falls above the second conveyor belt and is transported to the crusher main body for crushing treatment through the second conveyor belt. Through sorting and pretreatment, the adhesiveness of the coal slime is reduced, the situation of the coal slime adhering to the inner wall during the crushing process is reduced, and further, the phenomenon that the coal slime blocks the discharge port or the cutter tooth gap, resulting in the hindrance of material flow and the decline of crushing efficiency, is reduced.

[0029] 2. The present invention provides a fine particle coal slime crusher for preventing broken particles from adhering to the inner wall. The storage bucket is connected to the fixed top cover. When the first motor works, the third fixed block inside the fixed top cover slides in the chute, causing the storage bucket to float up and down. Therefore, when the coal slime is squeezed into the feeding pipe and transported to the coating plate, the coating plate moves synchronously with the storage bucket, and the coal slime is evenly smeared on the inner side wall of the pretreatment cylinder by the coating plate. Since the storage bucket floats up and down inside the fixed top cover, the coal slime smeared by the coating plate is in an S shape. After one week of smearing, the coating plate adjusts its position under the action of the electric push rod to continue smearing. At this time, the scraping plate switches its position under the action of the electric push rod at its bottom and scrapes the coal slime initially smeared on the inner wall of the pretreatment cylinder. The scraping plate and the coating plate work alternately, making the coal slime smear more evenly and having a better freezing effect.

[0030] 3. The present invention provides a fine particle coal slime crusher for preventing broken particles from adhering to the inner wall. The top of the scraping plate is provided with a first telescopic rod. During the scraping process, when the inclined plane of the triangular inclined block abuts against the inclined plane of the second fixed block, the limiting block is squeezed and moves downward, and after the triangular inclined block passes the second fixed block, it resets under the action of the first spring, thereby generating a jitter during the scraping process, making the scraping more thorough and further increasing the evenness of the coal slime smearing.

[0031] 4. The present invention provides a fine particle coal slime crusher for preventing broken particles from adhering to the inner wall. Two groups of cutting blades are arranged staggeredly, and a vibration motor is also arranged at one end of them. While staggering and crushing, it also generates jitter to reduce the adhesion of the coal slime. It should be noted that when the vibration motor is working, the piston plate slides inside the inner support rod and squeezes the gas to the middle position of the inner support rod. The gas is blown into the cutting blades through the air permeable grooves, and then blows off the residues on the surface of the cutting blades, reducing the adhesion of the coal slime.

[0032] 5. The present invention provides a fine particle coal slime crusher for preventing broken particles from adhering to the inner wall. The second motor is arranged to drive the first bevel gear to move. At this time, the second bevel gear and the third bevel gear rotate under the drive of the first bevel gear. When the coal slime enters the storage bucket through the feeding frame, the extrusion plate moves downward through the cooperation of the fixed square rod and the first support rod, and the second support rod rotates under the action of the second bevel gear, so that the material enters the conveying pipe. It should be noted that a filter screen plate is arranged inside the conveying pipe. When the second support rod rotates, the particulate impurities in the coal slime adhere to the filter screen plate under the action of centrifugal force, reducing the impurities in the coal slime while transporting the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be further described below with reference to the accompanying drawings.

[0034] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 is a schematic diagram of the overall structure of the first conveyor belt in the present invention;

[0036] Figure 3 is for the present invention Figure 2 enlarged view of part A;

[0037] Figure 4 is a schematic diagram of the combined sectional three-dimensional structure of the pretreatment cylinder and the storage bucket in the present invention;

[0038] Figure 5 is a schematic diagram of the sectional three-dimensional structure of the storage bucket in the present invention;

[0039] Figure 6 is a schematic diagram of the combined three-dimensional structure of the storage bucket and the fixed top cover in the present invention;

[0040] Figure 7 is a schematic diagram of the combined sectional three-dimensional structure of the first hollow rod and the second hollow rod in the present invention;

[0041] Figure 8 is for the present invention Figure 7 enlarged view of part B;

[0042] Figure 9 is a schematic diagram of the combined three-dimensional structure of the scraping plate and the storage bucket in the present invention;

[0043] Figure 10 is for the present invention Figure 9 enlarged view of part C;

[0044] Figure 11 is a schematic diagram of the sectional three-dimensional structure of the crusher main body in the present invention;

[0045] Figure 12 Schematic cross-sectional three-dimensional structure diagram of the inner support rod in the present invention;

[0046] Figure 13 Schematic three-dimensional structure diagram of the cooperation between the screening plate and the blocking plate in the present invention;

[0047] Figure 14 Schematic cross-sectional three-dimensional structure diagram of the screening plate and the blocking plate in the present invention;

[0048] Figure 15 Schematic three-dimensional structure diagram of the cooperation between the drying box and the spray gun in the present invention.

[0049] In the figure: 1. Crusher main body; 2. Pretreatment cylinder; 3. Second conveyor belt; 4. First conveyor belt; 5. Drying box; 6. Sorting block; 7. Diverting plate; 8. Transport plate; 9. Storage bucket; 10. Feed pipe; 11. Limit strip; 12. First hollow rod; 13. Coating plate; 14. First fixing block; 15. Scraping plate; 16. First telescopic rod; 17. Fixed top cover; 18. First motor; 19. Second fixing block; 20. Third fixing block; 21. Chute; 22. Feeding frame; 23. Second motor; 24. First bevel gear; 25. Second bevel gear; 26. Third bevel gear; 27. Fixed square rod; 28. First support rod; 29. Second support rod; 30. Electric push rod; 31. Second hollow rod; 32. Sealing ball; 33. Adjusting gear; 34. Rack; 35. Limit block; 36. First limiting rod; 37. First spring; 38. Triangular inclined block; 39. Arc-shaped baffle; 40. Feeding plate; 41. Fixed frame; 42. Screening plate; 43. Blocking plate; 44. Cutting blade; 45. Fixed disc; 46. Second spring; 47. Inner support rod; 48. Vent slot; 49. Partition plate; 50. Exhaust hole; 51. Piston plate; 52. Third spring; 53. Buffer pad; 54. Second limiting rod; 55. Fourth spring; 56. Connecting rod; 57. Fixed rod; 58. Arch-shaped plate; 59. Extrusion piece; 60. Spray gun; 61. Extrusion plate. Specific embodiments

[0050] The following further describes the present invention in detail with reference to embodiments.

[0051] Embodiment 1

[0052] As Figure 1 , Figure 2 and Figure 3As shown in the figure, the present invention provides a fine particle coal slime crusher for preventing broken particles from adhering to the inner wall, including a crusher main body 1; a crushing component is arranged inside the crusher main body 1, a first conveyor belt 4 is arranged on one side of the crusher main body 1, a pretreatment cylinder 2 is fixedly connected to the bottom of the first conveyor belt 4, a second conveyor belt 3 is fixedly connected to the bottom of the pretreatment cylinder 2, one end of the second conveyor belt 3 far from the pretreatment cylinder 2 is fixedly connected to a drying box 5, and a sorting component is arranged on the top of the first conveyor belt 4;

[0053] The sorting component includes a sorting block 6 fixedly connected to the top of the first conveyor belt 4. The sorting block 6 is trapezoid-shaped. A plurality of transport plates 8 are fixedly connected to both sides of the sorting block 6. Flow dividing plates 7 are fixedly connected to both sides of the inner side wall of the first conveyor belt 4. The transport plates 8 and the flow dividing plates 7 are slidably connected; a semiconductor refrigerating sheet is arranged on the inner wall of the pretreatment cylinder 2, and the semiconductor refrigerating sheet is used to transfer cold to the inner wall of the pretreatment cylinder 2 to realize the ice-making function. A pretreatment component is arranged inside the pretreatment cylinder 2, and the pretreatment component is used to evenly apply the sorted coal slime on the inner wall of the pretreatment cylinder 2.

[0054] In this embodiment, the coal slime is transported by the arranged first conveyor belt 4. During the transportation process, the first conveyor belt 4 vibrates to make the coal slime accumulated on its surface loose. The two sides of the sorting block 6 on the surface of the first conveyor belt 4 are inclined. During the transportation process, the coal slime with lower viscosity drops onto the surface of the flow dividing plate 7 along the inclined arc of the sorting block 6, and is pushed to the front end of the flow dividing plate 7 and sent into the drying box 5 under the action of the transport plate 8. At the same time, the coal slime with higher viscosity is directly sent into the pretreatment cylinder 2 for icing pretreatment, and after passing through the pretreatment, it falls above the second conveyor belt 3 and is transported to the crusher main body 1 by the second conveyor belt 3 for crushing treatment. After sorting and pretreatment, the adhesiveness of the coal slime is reduced, the situation of the coal slime adhering to the inner wall during the crushing process is reduced, and further, the phenomenon that the coal slime blocks the discharge port or the cutter tooth gap, resulting in the obstruction of material flow and the decline of crushing efficiency, is reduced.

[0055] Embodiment 2

[0056] As Figure 4 and Figure 5As shown in the figure, on the basis of Embodiment 1, the present invention provides a technical solution: Preferably, a feed frame 22 is fixedly connected to the outer wall of the storage barrel 9, a second motor 23 is fixedly connected to the inner side wall of the storage barrel 9, the output end of the second motor 23 is fixedly connected to a first bevel gear 24, the outer wall of the first bevel gear 24 is meshed with a second bevel gear 25, the top of the second bevel gear 25 is rotationally connected to the inner wall of the storage barrel 9, the bottom of the second bevel gear 25 is fixedly connected to a second support rod 29, the outer wall of the first bevel gear 24 is meshed with a third bevel gear 26, the bottom of the third bevel gear 26 is fixedly connected to a first support rod 28, a baffle is fixedly connected to the inner wall of the storage barrel 9, the baffle is rotationally connected to the first support rod 28, a fixed square rod 27 is slidably connected to the inner wall of the first support rod 28, the bottom of the fixed square rod 27 is fixedly connected to a pressing plate 61, the outer wall of the pressing plate 61 is threadedly connected to the inner wall of the storage barrel 9, a feed pipe 10 is fixedly connected to the bottom of the storage barrel 9, a filter screen plate is arranged inside the feed pipe 10, the bottom of the second support rod 29 is rotationally connected to the filter screen plate, and the feed pipe 10 is fixedly connected to a second hollow rod 31.

[0057] Since the slime enters the storage barrel 9 for storage after separation, and it is necessary to perform pretreatment on the inner wall of the pretreatment cylinder 2 in small amounts and multiple times through the storage barrel 9, and there are large particles in the slime, which is not conducive to the subsequent treatment work.

[0058] In this embodiment, the second motor 23 is set to drive the first bevel gear 24 to move. At this time, the second bevel gear 25 and the third bevel gear 26 rotate under the drive of the first bevel gear 24. When the slime enters the storage barrel 9 through the feed frame 22, the pressing plate 61 moves downward through the cooperation of the fixed square rod 27 and the first support rod 28, and the second support rod 29 rotates under the action of the second bevel gear 25, so that the material enters the feed pipe 10. It should be noted that a filter screen plate is arranged inside the feed pipe 10. When the second support rod 29 rotates, the particulate impurities in the slime adhere to the filter screen plate under the action of centrifugal force, reducing the impurities in the slime while transporting the material.

[0059] Embodiment 3

[0060] As Figure 4 and Figure 5As shown in the figure, on the basis of Embodiment 2, the present invention provides a technical solution: Preferably, the pretreatment assembly includes a storage bucket 9 arranged on the inner wall of the pretreatment cylinder 2. The outer wall of the storage bucket 9 is symmetrically and fixedly connected with limiting strips 11. Electric push rods 30 are fixedly connected to the inner side walls of the two limiting strips 11. The output end of one of the electric push rods 30 is fixedly connected with a second hollow rod 31, and the output end of the other electric push rod 30 is fixedly connected with a scraping plate 15. One end of the second hollow rod 31 is slidably connected with a first hollow rod 12. One end of the first hollow rod 12 is fixedly connected with a coating plate 13. The outer walls of the coating plate 13 and the scraping plate 15 are both in contact with the inner side wall of the pretreatment cylinder 2.

[0061] As Figure 5 and Figure 6 As shown in the figure, preferably, a fixed top cover 17 is rotatably connected to the top of the storage bucket 9. The fixed top cover 17 is fixedly connected with the pretreatment cylinder 2. A first motor 18 is fixedly connected to the top of the fixed top cover 17. A third fixed block 20 is fixedly connected to the inner side wall of the fixed top cover 17. A chute 21 is opened at the top of the storage bucket 9. The third fixed block 20 is slidably connected with the chute 21. The coating plate 13 is arranged in an S shape.

[0062] Since the slime needs to be pretreated by freezing before being crushed, there will be a phenomenon of uneven freezing, resulting in a large amount of slime still adhering to the inner wall during the subsequent crushing work, causing wear of the equipment and reducing work efficiency.

[0063] In this embodiment, by connecting the storage bucket 9 and the fixed top cover 17, when the first motor 18 works, the third fixed block 20 inside the fixed top cover 17 slides in the chute 21, causing the storage bucket 9 to float up and down. Therefore, when the slime is squeezed into the feed pipe 10 and transported to the coating plate 13, the coating plate 13 moves synchronously with the storage bucket 9, and the slime is evenly smeared on the inner side wall of the pretreatment cylinder 2 by the coating plate 13. Since the storage bucket 9 floats up and down in the fixed top cover 17, the slime smeared by the coating plate 13 is in an S shape. After one week of smearing, the coating plate 13 adjusts its position under the action of the electric push rod 30 and continues to smear. At this time, the scraping plate 15 switches its position under the action of the electric push rod 30 at its bottom and scrapes the slime initially smeared on the inner wall of the pretreatment cylinder 2. The scraping plate 15 and the coating plate 13 work alternately, making the slime smear more evenly and having a better freezing effect.

[0064] As Figure 7 and Figure 8As shown, preferably, a plugging ball 32 is rotatably connected to the inner wall of the first hollow rod 12. A through hole is provided on the plugging ball 32. The central axis of the plugging ball 32 extends to the outside of the first hollow rod 12 and is fixedly connected with an adjusting gear 33. The bottom of the adjusting gear 33 is meshed and connected with a rack 34. The rack 34 is fixedly connected with the second hollow rod 31. A plurality of first fixing blocks 14 are fixedly connected to the inner wall of the pretreatment cylinder 2.

[0065] Since the coal slime needs to be evenly smeared on the inner wall of the pretreatment cylinder 2 for freezing treatment, continuously smearing the coal slime on the inner wall of the pretreatment cylinder 2 will result in a relatively large overall volume of the frozen coal slime, which is prone to the phenomenon of material jamming and blockage. At the same time, continuous smearing will also cause the phenomenon that the unfrozen coal slime is squeezed down by the rear when being scraped, resulting in insufficient freezing of the coal slime and reducing the efficiency of subsequent crushing.

[0066] In this embodiment, by arranging a plurality of first fixing blocks 14 on the inner wall of the pretreatment cylinder 2, when the coating plate 13 contacts the first fixing blocks 14 during the smearing process, the first hollow rod 12 will contract into the second hollow rod 31 under the action of the spring inside it. It should be noted that during the contraction process, the adjusting gear 33 moves above the rack 34, causing the plugging ball 32 to flip, so that the coal slime stops entering the coating plate 13 and continues to feed after the first hollow rod 12 resets. Under the action of this structure, intermittent coating is realized, making the freezing effect of the coal slime better and making it more convenient for the scraping plate 15 to perform the scraping work.

[0067] As Figure 9 and Figure 10 As shown, preferably, a first telescopic rod 16 is fixedly connected to the top of the scraping plate 15. A limiting block 35 is fixedly connected to the top of the first telescopic rod 16. A triangular inclined block 38 is fixedly connected to the top of the limiting block 35. A first limiting rod 36 is slidably connected to the middle position of the limiting block 35. The top of the first limiting rod 36 is fixedly connected to the fixed top cover 17. A first spring 37 is arranged on the outer wall of the first limiting rod 36. The bottom of the first spring 37 is fixedly connected to the limiting block 35. A plurality of second fixing blocks 19 are fixedly connected to the bottom of the fixed top cover 17. The triangular inclined block 38 is slidably connected to the second fixing blocks 19.

[0068] Since the coal slime is frozen on the inner wall of the pretreatment cylinder 2 by using the coating method of the coating plate 13 and is scraped by the scraping plate 15, to avoid the phenomenon that the scraping plate 15 fails to scrape cleanly and there is residual coal slime on the inner wall of the pretreatment cylinder 2, when the coating plate 13 performs secondary coating, the thickness distribution of the coal slime on the inner wall of the pretreatment cylinder 2 is uneven, which not only leads to uneven freezing effect of the coal slime but also results in larger particles in the subsequent crushing of the coal slime, causing incomplete crushing.

[0069] In this embodiment, a No. 1 telescopic rod 16 is provided on the top of the scraper plate 15. During the scraping process, when the inclined surface of the triangular inclined block 38 conflicts with the inclined surface of the No. 2 fixed block 19, the limit block 35 is squeezed and moved downward, and after the triangular inclined block 38 passes through the No. 2 fixed block 19, it is reset under the action of the first spring 37, thereby generating shaking during the scraping process, making the scraping more thorough, and further increasing the uniformity of the coal slime smearing.

[0070] Example 4

[0071] like Figure 11 and Figure 12 As shown, on the basis of Example 3, the present invention provides a technical solution: preferably, the crushing assembly includes an arc-shaped baffle 39 fixedly connected to the inside of the crusher body 1, a feed plate 40 is rotatably connected at the middle position of the arc-shaped baffle 39, one end of the feed plate 40 is connected to the output end of the external motor, two cutting blades 44 are fixedly connected to the inner side wall of the crusher body 1, the outer walls of the two cutting blades 44 are alternately arranged, the inside of the cutting blades 44 is fixedly connected to an inner support rod 47, and the outer wall of the inner support rod 47 is provided with a venting groove 4 8. One end of the slitting blade 44 is fixedly connected to a fixed disc 45, one end of the fixed disc 45 is fixedly connected to a second spring 46, one side of the second spring 46 is fixedly connected to a piston plate 51, the piston plate 51 is fitted with the inner wall of the inner support rod 47, the inner wall of the inner support rod 47 is fixedly connected to two partition plates 49, an exhaust hole 50 is opened at the bottom of the partition plate 49, a one-way valve is arranged at the middle position of the exhaust hole 50, a one-way valve is arranged at the bottom of the piston plate 51, and a vibration motor is arranged at the end of the second spring 46 away from the fixed disc 45.

[0072] Since the coal slime needs to be transported into the crusher body 1 through the second conveyor belt 3 for crushing after being frozen, a small amount of coal slime may adhere to the cutter during the crushing process.

[0073] In this embodiment, two groups of cutting blades 44 are staggered and a vibration motor is provided at one end thereof, which generates vibration while performing staggered crushing, thereby reducing the adhesion of coal slime. It should be noted that when the vibration motor is working, the piston plate 51 slides in the inner support rod 47 and squeezes the gas to the middle position of the inner support rod 47. The gas is blown into the cutting blades 44 through the air permeable grooves 48, thereby blowing off the residue on the surface of the cutting blades 44 and reducing the adhesion of coal slime.

[0074] like Figure 13 and Figure 14As shown, preferably, a fixed frame 41 is fixedly connected to the inner wall of the crusher main body 1. A buffer pad 53 is fixedly connected to the inner side wall of the fixed frame 41. A screening plate 42 is inserted at the middle position of the buffer pad 53. A third spring 52 is fixedly connected to the top of the screening plate 42. A baffle plate 43 is fixedly connected to the bottom of the fixed frame 41. A plurality of second limiting rods 54 are fixedly connected to the bottom of the screening plate 42. A fourth spring 55 is sleeved on the outer wall of each second limiting rod 54. The bottom of each second limiting rod 54 is fixedly connected to an extrusion piece 59. A plurality of connecting rods 56 are fixedly connected to the inner side wall of the crusher main body 1. An arched plate 58 is fixedly connected to one side of the connecting rod 56. A plurality of fixing rods 57 are fixedly connected to the side of the arched plate 58 close to the crusher main body 1. The extrusion piece 59 abuts against the inner side wall of the arched plate 58.

[0075] Since some debris will adhere to the inner wall of the equipment after the coal slime is crushed, it takes a lot of time and effort to clean it frequently.

[0076] In this embodiment, after the coal slime is crushed by the cutting blades 44, it falls on the surface of the screening plate 42. When the screening plate 42 is impacted, it can slide up and down slightly under the action of the third spring 52 and the buffer pad 53. The coal slime passing through the screening plate 42 falls on the surface of the baffle plate 43 and then falls for discharge. It should be noted that the middle position of the baffle plate 43 can be flipped to reduce the dust flying up from the coal slime. Specifically, when the screening plate 42 is impacted and displaced downward, it squeezes the second limiting rods 54 to move downward. At this time, the extrusion piece 59 slides on the side of the arched plate 58, so that the fixing rods 57 can knock on the inner wall of the crusher main body 1, further reducing the adhesion of the coal slime to the inner wall.

[0077] As Figure 15 shown, preferably, a drying cylinder is arranged inside the drying box 5. A spray gun 60 is fixedly connected to one side of the drying box 5. The output end of the spray gun 60 is arranged inside the crusher main body 1. The spray gun 60 is connected to an external air pump through a pipeline.

[0078] Since the coal slime is sorted, the coal slime with high viscosity is crushed by means of freezing treatment. This method results in the phenomenon that the coal slime still agglomerates after crushing, weakening the crushing effect of the coal slime.

[0079] In this embodiment, the coal slime with low viscosity is selected and sent into the drying box 5 for drying treatment, and the dried coal slime is sprayed into the crusher main body 1 through the spray gun 60. It should be noted that the coal slime is sprayed in a mist shape and mixed with the frozen coal slime to reduce the agglomeration phenomenon.

[0080] The working principle of the fine particle coal slime crusher for preventing the crushed particles from adhering to the inner wall is specifically described below.

[0081] As Figures 1 - 15As shown, during the transportation of the coal slime, the first conveyor belt 4 vibrates to loosen the coal slime accumulated on its surface. The separation blocks 6 on the surface of the first conveyor belt 4 are arranged in inclined surfaces on both sides. During the transportation, the coal slime with lower viscosity falls to the surface of the diverter plate 7 along the inclined arc of the separation blocks 6, and is pushed to the front end of the diverter plate 7 under the action of the conveyor plate 8 and sent to the drying box 5. At the same time, the coal slime with higher viscosity is directly sent to the pretreatment cylinder 2 for ice pretreatment under the action of the separation blocks 6, and falls on the top of the second conveyor belt 3 after pretreatment, and passes through the second The conveyor belt 3 transports the coal to the crusher body 1 for crushing. When the coal slime enters the storage barrel 9 through the feed frame 22, the extrusion plate 61 moves downward through the cooperation of the fixed square rod 27 and the first support rod 28, and the second support rod 29 rotates under the action of the second bevel gear 25, so that the material enters the delivery pipe 10. It should be noted that a filter screen is provided inside the delivery pipe 10. When the second support rod 29 rotates, the centrifugal force causes the granular impurities in the coal slime to adhere to the filter screen, thereby reducing the impurities in the coal slime while transporting the material.

[0082] The material storage barrel 9 is connected with the fixed top cover 17 by the arrangement. When the No. 1 motor 18 is working, the No. 3 fixed block 20 on the inner side of the fixed top cover 17 slides in the slide groove 21 and makes the material storage barrel 9 float up and down. Therefore, after the coal slime is squeezed into the feeding pipe 10, it is transported to the coating plate 13. The coating plate 13 moves synchronously with the material storage barrel 9, and the coating plate 13 is used to evenly apply the coal slime on the inner wall of the pretreatment cylinder 2. Since the material storage barrel 9 floats up and down in the fixed top cover 17, the coal slime applied by the coating plate 13 is in an S shape. After one week of application, the coating plate 13 adjusts its position under the action of the electric push rod 30 to continue applying. At this time, the scraper plate 15 switches its position under the action of the electric push rod 30 at its bottom, and scrapes off the coal slime initially applied on the inner wall of the pretreatment cylinder 2. The scraper plate 15 and the coating plate 13 work alternately, so that the coal slime is applied more evenly and is not frozen. The effect is better. When the coating plate 13 contacts the No. 1 fixed block 14 during the coating process, the first hollow rod 12 will shrink into the second hollow rod 31 under the action of its internal spring. It should be noted that during its shrinkage, the adjusting gear 33 moves above the rack 34, causing the blocking ball 32 to flip, so that the coal slime stops entering the coating plate 13, and continues to feed after the first hollow rod 12 is reset. Under the action of this structure, the coating is spaced, so that the coal slime freezing effect is better, and it is more convenient for the scraping work of the scraper plate 15. A No. 1 telescopic rod 16 is provided on the top of the scraper plate 15. During the scraping process, when the inclined surface of the triangular inclined block 38 conflicts with the inclined surface of the No. 2 fixed block 19, the limit block 35 is squeezed and moved downward, and after the triangular inclined block 38 passes through the No. 2 fixed block 19, it is reset under the action of the first spring 37, thereby generating shaking during the scraping process, making the scraping more thorough.

[0083] The two-component cutting blades 44 are arranged alternately, and a vibration motor is also provided at one end thereof. While being broken alternately, jitter is generated to reduce the adhesion of slime. It should be noted that when the vibration motor is working, the piston plate 51 slides in the inner support rod 47 and squeezes the gas to the middle position of the inner support rod 47. The gas is blown into the cutting blades 44 through the air permeable grooves 48, and then the residues on the surface of the cutting blades 44 are blown off to reduce the adhesion of slime. After being broken by the cutting blades 44, the slime falls on the surface of the screening plate 42. When the screening plate 42 is impacted, it can slide slightly up and down under the action of the third spring 52 and the buffer pad 53. The slime passing through the screening plate 42 falls on the surface of the baffle plate 43 and then drops for discharge. It should be noted that the middle position of the baffle plate 43 can be turned over to reduce the dust flying caused by the slime being lifted. Specifically, when the screening plate 42 is impacted and displaced downward, the second limiting rod 54 is squeezed and moved downward. At this time, the pressing piece 59 slides on the side surface of the arched plate 58, so that the fixed rod 57 can knock on the inner wall of the crusher main body 1, and the slime with lower viscosity is sorted out and sent into the drying box 5 for drying treatment. Then, the dried slime is sprayed in the crusher main body 1 through the spray gun 60. It should be noted that the slime is sprayed in a mist shape and mixed with the frozen slime to reduce the phenomenon of agglomeration.

[0084] The above has generally described the present invention in detail. However, based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, the modifications or improvements made without departing from the spirit and idea of the present invention are within the protection scope of the present invention.

Claims

1. A fine particle coal slime crusher for preventing broken particles from adhering to the inner wall, comprising a crusher main body (1); characterized in that: Inside the crusher main body (1), a crushing component is provided. On one side of the crusher main body (1), a first conveyor belt (4) is provided. At the bottom of the first conveyor belt (4), a pretreatment cylinder (2) is fixedly connected. At the bottom of the pretreatment cylinder (2), a second conveyor belt (3) is fixedly connected. At one end of the second conveyor belt (3) away from the pretreatment cylinder (2), a drying box (5) is fixedly connected. On the top of the first conveyor belt (4), a sorting component is provided; The sorting component includes a sorting block (6) fixedly connected to the top of the first conveyor belt (4). The sorting block (6) is trapezoidally arranged. On both sides of the sorting block (6), a plurality of conveying plates (8) are fixedly connected. On both sides of the inner side wall of the first conveyor belt (4), flow dividing plates (7) are fixedly connected. The conveying plates (8) are slidably connected to the flow dividing plates (7); On the inner wall of the pretreatment cylinder (2), a semiconductor refrigerating sheet is provided. The semiconductor refrigerating sheet is used to transfer cold to the inner wall of the pretreatment cylinder (2) to achieve the ice-making function. Inside the pretreatment cylinder (2), a pretreatment component is provided. The pretreatment component is used to evenly apply the sorted slime on the inner wall of the pretreatment cylinder (2); The slime with lower viscosity falls onto the surface of the diversion plate (7) along the inclined arc of the sorting block (6), and is pushed to the front end of the diversion plate (7) by the transportation plate (8) and sent into the drying box (5). At the same time, the slime with higher viscosity is directly sent into the pretreatment cylinder (2) under the action of the sorting block (6) for Ice formation pretreatment, and after pretreatment, it falls above the second conveyor belt (3) and is transported to the crusher main body (1) by the second conveyor belt (3) for crushing treatment. Inside the drying box (5), a drying cylinder is provided. On one side of the drying box (5), a spray gun (60) is fixedly connected. The output end of the spray gun (60) is arranged inside the crusher main body (1). The spray gun (60) is connected to an external air pump through a pipeline. The dry slime is sprayed into the crusher main body (1) through the spray gun (60).

2. The fine particle slime crusher for preventing broken particles from adhering to the inner wall according to claim 1, wherein: The pretreatment component includes a storage bucket (9) arranged on the inner wall of the pretreatment cylinder (2). On the outer wall of the storage bucket (9), limiting strips (11) are symmetrically and fixedly connected. On the inner side walls of the two limiting strips (11), electric push rods (30) are fixedly connected. The output end of one of the electric push rods (30) is fixedly connected to a second hollow rod (31). The output end of the other electric push rod (30) is fixedly connected to a scraping plate (15). One end of the second hollow rod (31) is slidably connected to a first hollow rod (12). One end of the first hollow rod (12) is fixedly connected to a coating plate (13). The outer walls of the coating plate (13) and the scraping plate (15) are both in contact with the inner side wall of the pretreatment cylinder (2).

3. The fine particle coal slime crusher for preventing broken particles from adhering to the inner wall according to claim 2, wherein: The outer wall of the storage bucket (9) is fixedly connected with a feeding frame (22). A second motor (23) is fixedly connected to the inner side wall of the storage bucket (9). The output end of the second motor (23) is fixedly connected with a first bevel gear (24). The outer wall of the first bevel gear (24) is meshed with a second bevel gear (25). The top of the second bevel gear (25) is rotationally connected to the inner wall of the storage bucket (9). The bottom of the second bevel gear (25) is fixedly connected with a second support rod (29). The outer wall of the first bevel gear (24) is meshed with a third bevel gear (26). The bottom of the third bevel gear (26) is fixedly connected with a first support rod (28). A baffle is fixedly connected to the inner wall of the storage bucket (9). The baffle is rotationally connected to the first support rod (28). A fixed square rod (27) is slidably connected to the inner wall of the first support rod (28). The bottom of the fixed square rod (27) is fixedly connected with a pressing plate (61). The outer wall of the pressing plate (61) is threadedly connected to the inner wall of the storage bucket (9). The bottom of the storage bucket (9) is fixedly connected with a feeding pipe (10). A filter screen plate is arranged inside the feeding pipe (10). The bottom of the second support rod (29) is rotationally connected to the filter screen plate. The feeding pipe (10) is fixedly connected with the second hollow rod (31).

4. The fine particle slime crusher for preventing broken particles from adhering to the inner wall according to claim 3, characterized in that: The top of the storage bucket (9) is rotationally connected with a fixed top cover (17). The fixed top cover (17) is fixedly connected with the pretreatment cylinder (2). The top of the fixed top cover (17) is fixedly connected with a first motor (18). The output end of the first motor (18) is connected to the top of the storage bucket (9). A third fixed block (20) is fixedly connected to the inner side wall of the fixed top cover (17). A sliding groove (21) is formed in the top of the storage bucket (9). The third fixed block (20) is slidably connected to the sliding groove (21). The coating plate (13) is arranged in an S shape.

5. The fine particle slime crusher for preventing broken particles from adhering to the inner wall according to claim 4, characterized in that: A blocking ball (32) is rotationally connected to the inner wall of the first hollow rod (12). Through holes are formed in the blocking ball (32). The central axis of the blocking ball (32) extends to the outside of the first hollow rod (12) and is fixedly connected with an adjusting gear (33). The bottom of the adjusting gear (33) is meshed with a rack (34). The rack (34) is fixedly connected with the second hollow rod (31). A plurality of first fixed blocks (14) are fixedly connected to the inner wall of the pretreatment cylinder (2).

6. The fine particle coal slime crusher for preventing broken particles from adhering to the inner wall according to claim 5, wherein: The top of the scraping plate (15) is fixedly connected to a first telescopic rod (16). The top of the first telescopic rod (16) is fixedly connected to a limit block (35). The top of the limit block (35) is fixedly connected to a triangular inclined block (38). A first limit rod (36) is slidably connected to the middle position of the limit block (35). The top of the first limit rod (36) is fixedly connected to the fixed top cover (17). A first spring (37) is arranged on the outer wall of the first limit rod (36). The bottom of the first spring (37) is fixedly connected to the limit block (35). The bottom of the fixed top cover (17) is fixedly connected to a plurality of second fixed blocks (19). The triangular inclined block (38) is slidably connected to the second fixed blocks (19).

7. A fine particle coal slime crusher for preventing broken particles from adhering to the inner wall according to claim 1, characterized in that: The crushing assembly includes an arc-shaped baffle (39) fixedly connected inside the crusher main body (1). A feeding plate (40) is rotatably connected to the middle position of the arc-shaped baffle (39). One end of the feeding plate (40) is connected to the output end of an external motor. Two cutting blades (44) are fixedly connected to the inner side wall of the crusher main body (1). The outer walls of the two cutting blades (44) are alternately inserted. An inner support rod (47) is fixedly connected inside the cutting blade (44). An air permeation groove (48) is formed on the outer wall of the inner support rod (47). One end of the cutting blade (44) is fixedly connected to a fixed disc (45). A second spring (46) is fixedly connected to one end of the fixed disc (45). A piston plate (51) is fixedly connected to one side of the second spring (46). The piston plate (51) is in contact with the inner wall of the inner support rod (47). Two partition plates (49) are fixedly connected to the inner wall of the inner support rod (47). An exhaust hole (50) is formed at the bottom of the partition plate (49). A one-way valve is arranged at the middle position of the exhaust hole (50). A one-way valve is arranged at the bottom of the piston plate (51). A vibration motor is arranged at the end of the second spring (46) away from the fixed disc (45).

8. A fine particle coal slime crusher for preventing broken particles from adhering to the inner wall according to claim 7, characterized in that: The inner wall of the crusher main body (1) is fixedly connected with a fixed frame (41). A buffer pad (53) is fixedly connected to the inner side wall of the fixed frame (41). A screening plate (42) is inserted at the middle position of the buffer pad (53). A third spring (52) is fixedly connected to the top of the screening plate (42). A baffle plate (43) is fixedly connected to the bottom of the fixed frame (41). A plurality of second limiting rods (54) are fixedly connected to the bottom of the screening plate (42). A fourth spring (55) is sleeved on the outer wall of each second limiting rod (54). An extrusion sheet (59) is fixedly connected to the bottom of each second limiting rod (54). A plurality of connecting rods (56) are fixedly connected to the inner side wall of the crusher main body (1). An arched plate (58) is fixedly connected to one side of the connecting rod (56). A plurality of fixing rods (57) are fixedly connected to the side of the arched plate (58) close to the crusher main body (1). The extrusion sheet (59) abuts against the inner side wall of the arched plate (58).

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