Conveying device of coal gangue sorting machine

Abstract

The conveying device of the coal gangue sorting machine comprises a supporting frame, a detector, a pneumatic spray head, a storage frame and a conveying mechanism, after coal and coal gangue on a conveying belt are detected through the detector, the pneumatic spray head is controlled to spray out gas so that the coal gangue can move to the top end of a baffle, and during rotation of a material buffering cylinder, the coal gangue can be conveyed to the storage frame through the conveying mechanism. The number of coal gangues entering the material conveying barrel within a period of time can be limited, meanwhile, the situation that the coal gangues move to the top end of the material conveying barrel can be effectively avoided, the distance between the material conveying barrel and the baffle can be adjusted by adjusting the telescopic degree of the electric telescopic rod, and the coal gangues are conveyed through the material conveying barrel. The coal gangue can fall into the coal gangue groove due to the shape of the baffle after penetrating through the sponge barrel, and sponge on the surface of the sponge barrel can release part of water on the surface of the coal gangue, so that dust is prevented from being generated.

Description

Technical Field

[0001] The invention relates to the field of coal mine sorting, and in particular to a conveying device of a coal gangue sorting machine. Background Art

[0002] In the process of coal mining, coal gangue is a solid waste generated in the process of coal mining. It is mainly composed of a mixture of coal and various ores. In the process of coal mining, some coal gangue is mined to the ground along with the coal. The large accumulation of coal gangue itself will occupy a lot of land, and under the influence of natural rainfall, it is very easy to cause ecological pollution. By sorting coal gangue, the purity and quality of coal can be improved, thereby improving its market competitiveness. At the same time, the separated coal gangue can be transformed in a centralized manner and put into the building materials market, participating in the circular economy, while reducing pollution, promoting the comprehensive utilization of resources and sustainable development; In the existing process of sorting coal gangue, the separation of coal gangue and coal mine is usually controlled by pneumatic means. In the process of coal gangue separation, the coal gangue will be displaced by the device. Due to the complex composition inside the coal gangue, the dust dispersed by the coal gangue under the force is difficult to recover and reuse, thereby generating certain dust pollution. Summary of the invention

[0003] The object of the present invention is to provide a conveying device for a coal gangue sorting machine to solve the problem of dust emission during the coal gangue sorting and conveying process in the existing scenario.

[0004] To solve the above problems, the present invention provides the following technical solutions: a conveying device of a coal gangue sorting machine, comprising a support frame and a storage rack, a plurality of support rods are arranged at the bottom of the support frame, two ends of a conveyor belt are sleeved inside the support frame, a detector is arranged above the conveyor belt, one end of the conveyor belt is connected to a pneumatic nozzle, the storage rack is arranged at one end of the support frame connected to the pneumatic nozzle, a coal trough and a coal gangue trough are arranged at the bottom of the storage rack, the coal trough is arranged on a side close to the conveyor belt, a conveying device is arranged inside the storage rack, the detector controls the pneumatic nozzle to spray gas to the coal gangue, and the coal gangue pushed by the gas flows into the coal gangue trough through the conveying device.

[0005] Optionally, the conveying device includes a baffle, a material buffer cylinder, a material transport cylinder, and a sponge cylinder. The baffle is arranged above the coal trough and the coal gangue trough, and the baffle is inclined relative to the horizontal plane. The distance between one end of the baffle close to the conveyor belt and the bottom of the storage rack is greater than the distance between the other end and the bottom of the storage rack. The top of the baffle is sequentially provided with a material buffer cylinder, a material transport cylinder, and a sponge cylinder along the baffle. The material buffer cylinder is located at the end of the baffle close to the conveyor belt. The surface of the material buffer cylinder is provided with a plurality of material through holes arranged in a circular array. A material buffer block is provided in the material buffer cylinder. Transmission rods are respectively provided at both ends of the material transport cylinder, and the two transmission rods pass through the storage rack and are coaxially connected to a material transport motor. The two ends of the sponge cylinder are respectively movably connected to the storage rack.

[0006] Optionally, the material buffer cylinder includes a material motor, a docking block and a plurality of special-shaped pieces, the material motor and the docking block are respectively arranged on both sides of the storage rack, the outer side surface of the docking block is movably connected with a movable ring, the movable ring is coaxially connected to the material motor, the outer arc surface of the movable ring is connected to one end of a plurality of spring rods in a circular array, the other end of each of the spring rods is connected to the inner side surface of a special-shaped piece, each of the special-shaped pieces surrounds the movable ring in a circular array, each of the material through holes is formed by two special-shaped pieces being spliced ​​and combined together, a limit block is respectively arranged on both sides of the movable ring, the inner side surface of the limit block is connected to the outer side surface of the docking block, and the outer side surface of the limit block is movably connected to the inner side surface of the special-shaped piece.

[0007] Optionally, the storage rack is provided with a positioning slot on the side where the material transport motor is provided, and the two transmission rods are respectively passed through the positioning slots on the side of the storage rack and are connected to the material transport motor, each of the positioning slots is respectively provided with a dustproof sheet, and the dustproof sheet is sleeved on the outer side of the transmission rod, and the top of each of the material transport motors is respectively connected to one end of a plurality of electric telescopic rods, and the other end of each of the electric telescopic rods is connected to a connecting frame.

[0008] Optionally, a bypass groove is provided at the connecting frame, and the bypass groove is connected to the dustproof sheet.

[0009] Optionally, the storage rack is provided with a plurality of air inlets symmetrically arranged on the side where the material transport motor is provided, and the storage rack is provided with a dust suction port on the side away from the conveyor belt.

[0010] Optionally, a plurality of arc-shaped extrusion protrusions are arranged on the side surface of the material conveying cylinder in a circular array around the axis of the material conveying cylinder.

[0011] Optionally, the baffle has an outer shape that is a wave-like arc.

[0012] Beneficial effects: 1. The present invention electrically controls the rotation of the material buffer barrel, and through the rotation of the material buffer barrel, the material through hole and the coal gangue located above the baffle enter the interior of the material buffer barrel through the material through hole. Through the rotation of the material buffer barrel and the restriction of the material through hole, the amount of coal gangue entering the material conveying barrel can be effectively controlled, thereby avoiding the transportation of coal gangue caused by too much coal gangue to become stuck. At the same time, the blocking block in the material buffer barrel is used to block the coal gangue, thereby avoiding the coal gangue from jumping drastically with the rotation of the material buffer barrel, thereby avoiding the coal gangue from colliding drastically with the storage rack to cause dust generation.

[0013] 2. The present invention can adjust the distance between the material transport barrel and the top of the baffle by controlling the extension and retraction of the electric telescopic rod, thereby controlling the distance between the material transport barrel and the top of the baffle to adapt to the size of the coal gangue. While avoiding jamming in the transportation of the coal gangue, it can also avoid the crushing of the coal gangue due to the squeezing of the material transport barrel, and can further reduce the generation of dust.

[0014] 3. When the sponge tube of the present invention contacts with coal gangue, the sponge tube is squeezed by the coal gangue, causing the moisture in the sponge tube to separate from the sponge tube, thereby achieving infiltration of the surface of the coal gangue, which can effectively prevent the dust on the surface of the coal gangue from falling off. At the same time, when the coal gangue falls into the coal gangue trough, it can prevent the generation of dust when the coal gangue collides with the storage rack, which can effectively reduce the generation of dust pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the conveying device of the coal gangue separator of the present invention; Figure 2 It is a schematic diagram of the internal structure of the storage rack of the present invention; Figure 3 It is a connection schematic diagram of the conveying structure of the present invention; Figure 4 It is a structural schematic diagram of the connecting frame of the present invention; Figure 5 It is a structural schematic diagram of the material buffer cylinder of the present invention; Figure 6 It is a schematic diagram of the docking block of the present invention.

[0016] In the figure: 1. support frame; 11. support rod; 12. conveyor belt; 13. detector; 14. pneumatic nozzle; 15. air inlet; 16. dust suction port; 2. storage rack; 21. coal chute; 22. coal gangue chute; 23. adjustment slot; 24. dustproof sheet; 3. conveying device; 31. baffle; 32. material buffer cylinder; 321. material through hole; 322. material motor; 323. docking block; 324. movable ring; 325. special-shaped sheet; 326. limit block; 327. spring rod; 33. material transport cylinder; 331. extrusion convex block; 34. sponge cylinder; 35. material stop block; 36. transmission rod; 37. material transport motor; 38. electric telescopic rod; 4. connecting frame; 41. avoidance slot. DETAILED DESCRIPTION

[0017] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example: Figure 1-Figure 2 As shown, a conveying device 3 of a coal gangue sorting machine includes a support frame 1 and a storage frame 2. A plurality of support rods 11 are arranged at the bottom of the support frame 1. Two ends of a conveyor belt 12 are sleeved in the support frame 1. A detector 13 is arranged above the conveyor belt 12. One end of the conveyor belt 12 is connected to a pneumatic nozzle 14. The pneumatic nozzle 14 passes through the support frame 1 and is externally connected to an air pump. The storage frame 2 is arranged at one end of the support frame 1 connected to the pneumatic nozzle 14. A coal trough 21 and a coal gangue trough 22 are arranged at the bottom of the storage frame 2. The coal trough 21 is arranged near the conveyor belt. On one side of the storage rack 12, a conveying device 3 is arranged inside the storage rack 2, and a detector 13 controls a pneumatic nozzle 14 to spray gas to the coal gangue, and the coal gangue pushed by the gas flows into the coal gangue trough 22 through the conveying device 3; the storage rack 2 is symmetrically provided with a plurality of air inlets 15 on the side where the material transport motor 37 is arranged, and the storage rack 2 is provided with a dust suction port 16 on the side away from the conveyor belt 12, and a dust suction port 16 is externally connected to a dust collector, and air flows in from the air inlet 15 and flows out from the dust suction port 16, and then the dust in the storage rack 2 will also be absorbed by the dust collector; In the prior art, the conveyor belt 12 transports the mixed gangue and coal together, and the detector 13 is used to perform X-ray scanning on the gangue and coal transported at the conveyor belt 12, and the scanning result is output to an external processing system. The processing system processes the information output by the detector 13 and outputs a control signal to control the pneumatic nozzle 14 to locate the time when the gangue arrives at the pneumatic nozzle 14 within a corresponding time. After that, gas can be sprayed to the corresponding area where the gangue is located, thereby causing the gangue to leave the conveyor belt 12 and fly into the baffle 31, while the coal normally leaves the conveyor belt 12 and falls into the coal trough 21 connected to the conveyor belt 12.

[0019] like Figure 3 As shown, the conveying device 3 includes a baffle 31, a material buffer cylinder 32, a material conveying cylinder 33, and a sponge cylinder 34. The baffle 31 has a wave-like arc shape. The baffle 31 is arranged above the coal trough 21 and the gangue trough 22. The baffle 31 is inclined relative to the horizontal plane. The inclined baffle 31 can provide assistance for the natural flow of the gangue. The distance between one end of the baffle 31 close to the conveyor belt 12 and the bottom of the storage rack 2 is greater than the distance between the other end and the bottom of the storage rack 2, because the distance between the baffle 31 and the bottom of the storage rack 2 is greater than the distance between the baffle 31 and the bottom of the storage rack 2. The pneumatic nozzle 14 at 12 can push the coal gangue to move to a relatively high position, so that the relatively high end of the baffle 31 is close to the conveyor belt 12. At the same time, when the coal gangue moves to above the baffle 31, the subsequent process of the coal gangue moving from the top of the baffle 31 to the coal gangue trough 22 will be similar to going downhill, thereby being able to avoid the situation where the coal gangue is stuck above the baffle 31 to a large extent. The top of the baffle 31 is sequentially provided with a material buffer cylinder 32, a material transport cylinder 33, and a sponge cylinder 34 along the baffle 31.

[0020] like Figure 5-Figure 6As shown, the material buffer cylinder 32 is located at one end of the baffle plate 31 close to the conveyor belt 12, and the surface of the material buffer cylinder 32 is provided with a plurality of material through holes 321 arranged in a circular array. The outer side surface of the material buffer cylinder 32 is in contact with the arc shape of the baffle plate 31, and a material blocking block 35 is arranged in the material buffer cylinder 32. The material blocking block 35 can prevent the gangue from moving to the top of the material conveying cylinder 33. The material buffer cylinder 32 includes a material motor 322, a docking block 323 and a plurality of special-shaped pieces 325. The material motor 322 and the docking block 323 are respectively arranged on both sides of the storage rack 2, and the outer side surface of the docking block 323 is movably connected with a movable ring 324, and the movable ring 324 is coaxially connected to the material motor 322. The outer arc surface of 24 is connected to one end of a plurality of spring rods 327 in a circular array, and the other end of each of the spring rods 327 is connected to the inner side of a special-shaped piece 325. Each of the special-shaped pieces 325 surrounds the movable ring 324 in a circular array. Each of the material through holes 321 is composed of two special-shaped pieces 325 spliced ​​together. A limit block 326 is provided on both sides of the movable ring 324. The inner side of the limit block 326 is connected to the outer side of the docking block 323. The outer side of the limit block 326 is movably connected to the inner side of the special-shaped piece 325. The limit block 326 is an arc shape as a whole, and a notch is provided in the limit block 326 where the gangue enters the baffle 31. The material motor 322 passes through the storage rack 2 until it reaches the docking block 323, and then is connected to the movable ring 324. The rotation of the material motor 322 drives the movable ring 324 to rotate relative to the two limit blocks 326 and the docking block 323. At the same time, the rotation of the movable ring 324 drives all the spring rods 327 to rotate, and then drives all the special-shaped pieces 325 to rotate in a circle. When the special-shaped piece 325 rotates with the material motor 322 to the gap close to the limit block 326, the special-shaped piece 325 contacts the coal gangue on the baffle 31. At this time, the spring rod 327 connected to the special-shaped piece 325 is squeezed by the coal gangue and moves toward the gap close to the movable ring 324. The moving ring 324 contracts in the direction of the axis, and then the coal gangue is pushed by the non-compressed and contracted special-shaped piece 325 to move to the material through hole 321, and then enters the material buffer cylinder 32, and rotates with the rotation of the material buffer cylinder 32 until the coal gangue rotates to the side of the material buffer cylinder 32 close to the material conveying cylinder 33, and then flows out of the material buffer cylinder 32 through the material through hole 321, and then flows toward the material conveying cylinder 33. In the area where the special-shaped piece 325 contacts the limit block 326, after the outer side surface of the special-shaped piece 325 is subjected to pressure, due to the support of the limit block 326, the special-shaped piece 325 and the spring rod 327 connected thereto will not be displaced; The material motor 322 controls all the special-shaped pieces 325 to rotate around their own axis. The material motor 322 controls the outer side of all the special-shaped pieces 325 to rotate from top to bottom on the side close to the conveyor belt 12, and all the special-shaped pieces 325 to rotate from bottom to top on the side close to the material barrel 33. In this way, the coal gangue at the baffle 31 can be accommodated into the material buffer barrel 32 by using the material through hole 321. The material buffer barrel 32 plays a role in slowly and quantitatively conveying the coal gangue at the top of the baffle 31, which can prevent the blockage of the material barrel 33 and reduce the error rate during the transportation of the material barrel 33. The material blocking block 35 in the material buffer barrel 32 is connected to the storage rack 2, and the material blocking block 35 is located relatively close to the material buffer barrel 32. At the top position, the material blocking block 35 can prevent the gangue in the material buffer cylinder 32 from jumping. When the gangue in the material buffer cylinder 32 collides with each other and causes jumping, the gangue can easily jump out of the material buffer cylinder 32 through the material through hole 321 near the top of the material buffer cylinder 32, and then the jumped-out gangue will pass through the top of the material transport cylinder 33 and the sponge cylinder 34, and may collide with the top of the storage rack 2, or directly fall into the gangue trough 22, which may cause damage to the device and weaken the dust elimination effect of the device. The material buffer cylinder 32 and the material blocking block 35 are made of rubber material, which can reduce the dust caused by contact and extrusion of the gangue.

[0021] like Figure 4 As shown, the side of the material conveying barrel 33 is provided with a plurality of arc-shaped extrusion protrusions 331 in a circular array around the axis of the material conveying barrel 33. The extrusion protrusions 331 can increase the contact area between the material conveying barrel 33 and the coal gangue, and assist in the transportation of the coal gangue. Transmission rods 36 are respectively provided at both ends of the material conveying barrel 33. Both transmission rods 36 pass through the storage rack 2 and are coaxially connected to a material conveying motor 37. Both motors control the outer side of the material conveying barrel 33 to rotate from top to bottom on the side close to the material buffer barrel 32, and the side of the material conveying barrel 33 close to the sponge barrel 34 to rotate from bottom to top. The two ends of the sponge tube 34 are movably connected to the storage rack 2 respectively. The sponge tube 34 passes through the storage rack 2 and is externally connected to a water supply pump. The sponge on the surface of the sponge tube 34 absorbs water delivered by the water supply pump. When in contact with coal gangue, the sponge on the surface of the sponge tube 34 is affected by the reaction force provided by the coal gangue, which will cause part of the moisture to migrate to the surface of the coal gangue, and then the dust on the surface of the coal gangue is affected by the moisture and adsorbed on the surface of the coal gangue. In this scenario, the coal gangue will also be wiped by the sponge, and part of the dust will be intercepted in the sponge, thereby reducing the dust on the surface of the coal gangue and the dust generated when the coal gangue falls into the coal gangue trough 22. Under the operation of the staff, the sponge on the surface of the sponge tube 34 is regularly cleaned and replaced, thereby effectively reducing the dust pollution caused by the coal gangue during the sorting process.

[0022] The storage rack 2 is provided with a positioning slot 23 on the side where the material transport motor 37 is provided. Two transmission rods 36 pass through the positioning slots 23 on the side of the storage rack 2 and are connected to the material transport motor 37. A dustproof sheet 24 is provided at each positioning slot 23. The dustproof sheet 24 is sleeved on the outer side of the transmission rod 36. The top of each material transport motor 37 is respectively connected to one end of a plurality of electric telescopic rods 38. The other end of each electric telescopic rod 38 is connected to a connecting frame 4. An avoidance slot 41 is provided at the connecting frame 4. The avoidance slot 41 is connected to the dustproof sheet 24. The dustproof sheet 24 covers the positioning slot 23. The covering of the dustproof sheet 24 on the positioning slot 23 can achieve the closure of the significant gap on the surface of the storage rack 2, and can control the dust pollution of coal gangue to In the storage rack 2, the electric telescopic rod 38 can control the distance between the material transport barrel 33 and the baffle 31 according to the transportation needs. When the electric telescopic rod 38 controls the material transport barrel 33 and the transmission rod 36 to move as a whole in the adjustment slot 23, the dustproof sheet 24 will also be displaced accordingly. However, when the size of the dustproof sheet 24 is large, no matter how the electric telescopic rod 38 is extended or retracted, the dustproof sheet 24 will always keep covering the adjustment slot 23, thereby preventing dust from escaping to the outside. At the same time, an avoidance slot 41 is provided on the surface of the connecting frame 4 for the dustproof sheet 24 to pass through normally. When the electric telescopic rod 38 is extended or retracted, the dustproof sheet 24 can avoid conflict with the connecting frame 4 through the avoidance slot 41, thereby causing deformation or damage to the dustproof sheet 24.

[0023] In this embodiment, a working scenario of a conveying device of a coal gangue sorting machine is as follows: the conveyor belt 12 conveys the mixed coal gangue and coal together, and the detector 13 is used to perform X-ray scanning on the coal gangue and coal transported at the conveyor belt 12, and the scanning result is output to an external processing system. The processing system processes the information output by the detector 13 and outputs a control signal to control the pneumatic nozzle 14 to locate the time when the coal gangue arrives at the pneumatic nozzle 14 within a corresponding time, and then it can spray gas to the corresponding area where the coal gangue is located, thereby causing the coal gangue to leave the conveyor belt 12 and fly into the baffle 31, while the coal normally leaves the conveyor belt 12 and falls into the coal trough 21 connected to the conveyor belt 12, and the material buffer cylinder 32 at the top of the baffle 31 will use its own rotation to pass the material through The hole 321 is connected to the gangue, and the special-shaped piece 325 and the spring rod 327 connected thereto will approach the axis of the movable ring 324 when contacting the gangue on the baffle 31, thereby avoiding excessive pressure on the gangue to cause the gangue to be crushed, and can effectively reduce the generation of dust. The gangue will enter the material buffer cylinder 32 through the staggered material through hole 321, and then the special-shaped piece 325 and the spring rod 327 will return to their original position, and the material buffer cylinder 32 controls the gangue at the bottom to move toward the material conveying cylinder 33. The blocking block 35 in the material buffer cylinder 32 can prevent the gangue from jumping to the top of the material conveying cylinder 33 and the sponge cylinder 34. Under the relatively slow rotation of the material buffer cylinder 32, the gangue in the material buffer cylinder 32 will flow from the material through hole 321 to the material conveying cylinder 33 in a quantitative manner; At the material conveying barrel 33, the staff adjusts the extension degree of the electric telescopic rod 38 according to the overall specifications of the gangue, so that the distance between the material conveying barrel 33 and the baffle 31 is controlled in an appropriate range, and the gangue transported by the material conveying barrel 33 will contact the sponge barrel 34, and the gangue will fall into the gangue trough 22 after passing through the sponge barrel 34 and adhering to moisture. In the process of the gangue passing through the sponge barrel 34, the sponge of the sponge barrel 34 will be squeezed by the gangue, and the moisture in the sponge will be It will be released on the surface of the coal gangue, and can effectively adhere to the dust on the surface of the coal gangue. At the same time, it can use moisture to take away part of the dust on the surface of the coal gangue and attach it to the sponge on the surface of the sponge tube 34, thereby reducing the pollution caused by the dust. In the process of sorting and transporting the coal gangue, the air inlet 15 can introduce airflow from the outside, and the vacuum cleaner connected to the dust suction port 16 can suck the dust-containing gas in the storage rack 2 out of the storage rack 2, thereby effectively reducing the dust pollution in the process of sorting the coal gangue.

[0024] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A conveying device for a coal gangue separator, characterized in that: The invention comprises a support frame (1) and a storage frame (2), wherein a plurality of support rods (11) are arranged at the bottom of the support frame (1), two ends of a conveyor belt (12) are sleeved inside the support frame (1), a detector (13) is arranged above the conveyor belt (12), one end of the conveyor belt (12) is butt-jointed with a pneumatic nozzle (14), the storage frame (2) is arranged at one end of the support frame (1) connected with the pneumatic nozzle (14), a coal trough (21) and a coal gangue trough (22) are arranged at the bottom of the storage frame (2), the coal trough (21) is arranged on a side close to the conveyor belt (12), a conveying device (3) is arranged inside the storage frame (2), the detector (13) controls the pneumatic nozzle (14) to spray gas to the coal gangue, and the coal gangue pushed by the gas flows into the coal gangue trough (22) through the conveying device (3).

2. The conveying device of the coal gangue separator according to claim 1, characterized in that: The conveying device (3) comprises a baffle (31), a material buffer cylinder (32), a material conveying cylinder (33), and a sponge cylinder (34). The baffle (31) is arranged above the coal trough (21) and the gangue trough (22). The baffle (31) is inclined relative to the horizontal plane. The distance between one end of the baffle (31) close to the conveyor belt (12) and the bottom of the storage rack (2) is greater than the distance between the other end and the bottom of the storage rack (2). The top of the baffle (31) is provided with a material buffer cylinder (32), a material conveying cylinder (33), and a sponge cylinder (34) in sequence along the baffle (31). 3) a sponge cylinder (34), wherein the material buffer cylinder (32) is located at one end of the baffle (31) close to the conveyor belt (12), the surface of the material buffer cylinder (32) is provided with a plurality of material through holes (321) arranged in a circular array, a material blocking block (35) is arranged inside the material buffer cylinder (32), transmission rods (36) are respectively arranged at both ends of the material transport cylinder (33), the two transmission rods (36) are both passed through the storage rack (2) and are coaxially connected to a material transport motor (37), and the two ends of the sponge cylinder (34) are respectively movably connected to the storage rack (2).

3. The conveying device of the coal gangue separator according to claim 2, characterized in that: The material buffer cylinder (32) comprises a material motor (322), a docking block (323) and a plurality of special-shaped pieces (325). The material motor (322) and the docking block (323) are respectively arranged on both sides of the storage rack (2). The outer side surface of the docking block (323) is movably connected to a movable ring (324). The movable ring (324) is coaxially connected to the material motor (322). The outer arc surface of the movable ring (324) is connected to one end of a plurality of spring rods (327) in a circular array. The other end of each of the spring rods (327) is connected to the inner side surface of a special-shaped piece (325). Each of the special-shaped pieces (325) surrounds the movable ring (324) in a circular array. Each of the material through holes (321) is formed by splicing two special-shaped pieces (325) together, and a limit block (326) is provided on both sides of the movable ring (324). The inner side surface of the limit block (326) is connected to the outer side surface of the docking block (323), and the outer side surface of the limit block (326) is movably connected to the inner side surface of the special-shaped piece (325).

4. The conveying device of the coal gangue separator according to claim 2, characterized in that: The storage rack (2) is provided with a positioning slot (23) on the side where the material transport motor (37) is provided. The two transmission rods (36) respectively pass through the positioning slots (23) on the side of the storage rack (2) and are connected to the material transport motor (37). Each of the positioning slots (23) is provided with a dustproof sheet (24), and the dustproof sheet (24) is sleeved on the outer side of the transmission rod (36). The top end of each of the material transport motors (37) is respectively connected to one end of a plurality of electric telescopic rods (38), and the other end of each of the electric telescopic rods (38) is connected to a connecting frame (4).

5. The conveying device of the coal gangue separator according to claim 4, characterized in that: The connecting frame (4) is provided with an avoidance slot (41), and the avoidance slot (41) is butted against the dustproof sheet (24).

6. The conveying device of the coal gangue separator according to claim 4, characterized in that: A plurality of air inlets (15) are symmetrically arranged on the side of the storage rack (2) on which the material transport motor (37) is arranged, and a dust suction port (16) is arranged on the side of the storage rack (2) away from the conveyor belt (12).

7. The conveying device of the coal gangue separator according to claim 2, characterized in that: A plurality of arc-shaped extrusion protrusions (331) are arranged in a circular array on the side surface of the material conveying barrel (33) around the axis of the material conveying barrel (33).

8. The conveying device of the coal gangue separator according to claim 2, characterized in that: The baffle (31) has an outer shape that is a wave-like arc.

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