Rotary gangue distributing and anti-accumulation row-arranging device

Abstract

The application discloses a rotary gangue distributing and anti-accumulation discharging device, which comprises a gangue discharging unit, a transfer assembly and a demisting assembly. The gangue discharging unit comprises a base plate, an electric drive rotary bearing and a telescopic gangue discharging conveyor. The electric drive rotary bearing drives the gangue discharging conveyor to rotate, and the telescopic gangue discharging conveyor changes the gangue discharging radius. The transfer assembly is arranged above the beginning end of the gangue discharging conveyor and comprises a hopper and a vibration motor. The hopper receives the incoming gangue from a gangue conveying device and discharges the gangue to the gangue discharging conveyor. The vibration motor prevents the hopper from being blocked, and a damping assembly isolates vibration. The demisting assembly is arranged at the end of the gangue discharging conveyor and comprises a 3D radar and a spraying head. A control device adjusts a closed-loop motor according to the gangue pile height monitored by the 3D radar, so that the 3D radar and the spraying head are synchronously pitched, and the pile height monitoring and the spraying dust setting are realized. The application can accurately adjust the gangue discharging direction and radius, solves the problem of discharging position error after rotation, and realizes uniform gangue distribution, anti-accumulation and automatic dust setting.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of coal mine gangue discharge equipment, in particular to a rotary gangue distribution and anti-accumulation discharge device. BACKGROUND

[0002] A large amount of gangue is generated in the process of coal mining, which usually needs to be discharged to the ground gangue dump. In the prior art, the gangue discharge system usually adopts a fixed gangue discharge conveyor belt to transport the gangue to the discharge point of the gangue dump. This gangue discharge method has the following problems: the gangue is always accumulated at the same position, which causes the local accumulation of the gangue dump to be too high, not only occupies a large amount of land, but also easily causes safety hazards such as landslides and spontaneous combustion; at the same time, the fixed discharge point causes dust to be concentrated, which seriously pollutes the environment.

[0003] However, the prior art still has the following deficiencies: the length of the gangue discharge conveyor belt is fixed, and the gangue discharge radius cannot be adjusted, so when the range of the gangue dump is large, a single rotation cannot cover all the gangue discharge areas; the position of the gangue conveying conveyor belt is fixed, and after the gangue discharge conveyor belt rotates, the discharge point of the gangue conveying conveyor belt and the receiving point of the gangue discharge conveyor belt are easily misaligned, which causes the gangue to fall off; there is no gangue accumulation height monitoring means, and the gangue discharge position cannot be automatically adjusted according to the accumulation state, which relies on manual visual judgment and has a large labor intensity; a large amount of dust is generated during the gangue discharge process, and there is no effective dust reduction measure, which makes the working environment very poor. SUMMARY

[0004] In order to solve the above-mentioned problems in the prior art, the purpose of the present application is to provide a rotary gangue distribution and anti-accumulation discharge device, which can accurately adjust the gangue discharge azimuth angle and the gangue discharge radius, solve the problem that the gangue conveying equipment cannot accurately discharge after the gangue discharge conveyor rotates, realize uniform gangue distribution and anti-accumulation control, and effectively suppress dust.

[0005] The technical scheme adopted by the present application to solve the above-mentioned technical problems is as follows: A rotary gangue distribution and anti-accumulation discharge device, comprising: A gangue discharge unit, comprising a base plate, an electric drive rotary bearing and a gangue discharge conveyor, the bottom of the base plate is provided with a support column, the inner ring of the electric drive rotary bearing is fixedly installed on the top surface of the base plate, the initial end of the gangue discharge conveyor is fixedly connected with the outer ring of the electric drive rotary bearing, the electric drive rotary bearing can drive the gangue discharge conveyor to rotate around it, and the gangue discharge conveyor is a telescopic conveyor; A transfer assembly is arranged above the initial end of the gangue discharge conveyor, the transfer assembly comprises a hopper and a vibration motor, the hopper is used to receive the incoming material of the gangue conveying equipment and discharge the gangue onto the gangue discharge conveyor, and the vibration motor is fixedly installed on the outer wall of the hopper; A demisting assembly is arranged at the end of the gangue discharge conveyor, the demisting assembly comprises a 3D radar and a spray head, and the 3D radar is used to monitor the height of the gangue pile.

[0006] As another optimized solution of the above-mentioned rotary gangue feeding and anti-accumulation gangue removal device, the gangue removal unit includes a central shaft, which is coaxially arranged with an electric drive rotary bearing. The bottom end of the central shaft is fixed on the base plate, and the top end of the central shaft is connected to the starting end of the gangue removal conveyor through a bearing seat.

[0007] As another optimized solution of the above-mentioned rotary gangue feeding and anti-accumulation gangue removal device, the gangue removal unit includes a tractor, an arc track and a geared motor. The bottom of the tractor is equipped with at least one set of track wheels. The arc track is arranged with the beginning of the gangue removal conveyor as the center. The geared motor is fixedly installed on the tractor. The output end of the geared motor is connected to the track wheels through a chain drive group, which can drive the track wheels to move along the arc track.

[0008] As another optimized solution for the aforementioned rotary gangue feeding and anti-accumulation gangue disposal device, a gantry frame is fixedly installed on the top of the tractor, and a stay cable is installed on the gantry frame. The stay cable is used to pull the gangue disposal conveyor.

[0009] As another optimized solution of the above-mentioned rotary gangue feeding and anti-accumulation gangue discharge device, the transfer component includes a vertical frame, a support frame, a bottom frame and a shock-absorbing component. The vertical frame is fixedly connected to the gangue discharge conveyor, the support frame is fixed on the top of the vertical frame, the bottom frame is installed above the support frame through the shock-absorbing component, and the bottom outer wall of the funnel is fixedly connected to the bottom frame.

[0010] As another optimized solution of the above-mentioned rotary gangue material and anti-accumulation gangue disposal device, the shock absorption component includes a limiting slide rod, a composite spring and an anti-detachment component. The limiting slide rod is fixedly connected to the four corners of the bottom frame and passes through the support frame. The end of the limiting slide rod that passes through the support frame is fixedly connected to the anti-detachment component. The limiting slide rod is fitted with a composite spring.

[0011] As another optimized solution of the above-mentioned rotary gangue feeding and anti-accumulation gangue discharge device, the defogging component includes a lifting frame, a mounting plate and a closed-loop motor. The lifting frame is fixedly connected to the lower end of the gangue discharge conveyor. The two ends of the mounting plate are rotatably connected to the lifting frame through support shafts. The closed-loop motor is fixedly installed on the lifting frame to drive the support shafts to rotate, thereby changing the pitch angle of the mounting plate.

[0012] As another optimized solution of the above-mentioned rotary gangue distribution and anti-accumulation gangue disposal device, the demisting component includes a spray head, which is installed on the surface of the mounting plate. There are multiple spray heads, which are arranged along the length of the mounting plate.

[0013] The present invention has the following beneficial effects: The rotation of the waste rock conveyor is directly driven by an electric rotary bearing, achieving precise closed-loop control of the rotation angle; at the same time, a traction vehicle is set up to follow along the arc track, providing auxiliary support to the end of the waste rock conveyor and ensuring the stability of the rotation process.

[0014] The gangue discharge conveyor adopts a telescopic structure. By changing the conveying length through the storage bin and the movable section frame, the discharge radius can be adjusted. Combined with the rotation function, the discharge point can be arbitrarily adjusted within the fan-shaped ring belt, significantly improving the uniformity of gangue distribution.

[0015] A transfer component is installed above the starting end of the waste rock discharge conveyor. It receives the incoming material from the waste rock transport equipment through a funnel and transfers it to the waste rock discharge conveyor, which solves the problem that the waste rock transport equipment cannot accurately discharge material after the waste rock discharge conveyor rotates. A vibration motor is installed on the funnel to prevent the waste rock from arching and blocking inside the funnel. The vibration damping component isolates the vibration and prevents the vibration from being transmitted to the waste rock discharge conveyor and the slewing bearing.

[0016] A 3D radar and spray head are installed at the end of the waste rock conveyor. The 3D radar monitors the height of the waste rock pile in real time. The control equipment adjusts the closed-loop motor according to the monitoring data so that the 3D radar and spray head are synchronously pitched. This ensures that the 3D radar is always aimed at the waste rock pile for accurate monitoring, and that the spray head is always aimed at the material drop point for dust suppression, effectively suppressing dust.

[0017] The additional technical features and advantages of the present invention will become more apparent from the following description, or may be learned through practice of the invention. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention (first perspective); Figure 2 This is a schematic diagram of the structure of the present invention (second perspective); Figure 3 This is a schematic diagram of the transfer component of the present invention; Figure 4 This is a schematic diagram of the defogging component of the present invention; Figure 5 This is a schematic diagram of the central axis of the present invention; The reference numerals in the attached drawings are explained as follows: 10-Gallery removal unit; 101-Base plate; 102-Support column; 103-Electric drive rotary bearing; 104-Gallery removal conveyor; 105-Central shaft; 106-Bearing housing; 107-Tractor; 108-Gantry frame; 109-Cable stay; 110-Rail wheel assembly; 111-Gear motor; 112-Chain drive assembly; 113-Arc-shaped track; 20-Transfer component; 201-Upright frame; 202-Support frame; 203-Base frame; 204-Function funnel; 205-Vibration motor; 206-Limiting slide bar; 207-Composite spring; 208-Anti-detachment component; 30-Defogging component; 301-Hanging bracket; 302-Mounting plate; 303-Support shaft; 304-Spray head; 305-Closed-loop motor; 306-3D radar. Detailed Implementation

[0019] The technical solution of the present invention will be further described in detail below with reference to specific embodiments. Parts not explained in the following embodiments of the present invention are all considered to be prior art known or should be known by those skilled in the art.

[0020] like Figures 1-5 As shown, a rotary gangue cloth and anti-accumulation gangue removal device includes a gangue removal unit 10, a transfer component 20, and a demisting component 30.

[0021] The waste rock removal unit 10 includes a base plate 101, a support column 102, an electric drive rotary bearing 103, a waste rock removal conveyor 104, a central shaft 105, a bearing housing 106, a traction vehicle 107, a gantry frame 108, a stay cable 109, a track wheel assembly 110, a geared motor 111, a chain drive assembly 112, and an arc track 113.

[0022] Multiple support columns 102 are fixedly mounted on the bottom of the base plate 101, and the support columns 102 are installed on a concrete foundation to provide stable support for the entire device. The inner ring of the electric drive slewing bearing 103 is fixedly mounted on the top surface of the base plate 101 by bolts. The electric drive slewing bearing 103 adopts an internal gear or external gear slewing bearing, is driven by a motor, and can achieve precise angle control. The starting end of the waste rock removal conveyor 104 is fixedly connected to the outer ring of the electric drive slewing bearing 103. When the outer ring of the electric drive slewing bearing 103 rotates, it drives the waste rock removal conveyor 104 to rotate around its starting end, thereby changing the waste rock removal azimuth angle.

[0023] The central shaft 105 is coaxially arranged with the electric drive rotary bearing 103. The bottom end of the central shaft 105 is fixed to the base plate 101, and the top end of the central shaft 105 is connected to the starting end of the waste rock removal conveyor 104 through the bearing seat 106. The central shaft 105 passes through the center of the electric drive rotary bearing 103 and cooperates with the starting end of the waste rock removal conveyor 104 through the bearing, playing a role in radial positioning and assisting in anti-overturning. When the waste rock removal conveyor 104 rotates, the central shaft 105 does not rotate, but only provides rotational center positioning for the waste rock removal conveyor 104 and shares part of the overturning moment.

[0024] The bottom of the tractor 107 is equipped with at least one set of track wheel sets 110; in this embodiment, two track wheel sets 110 are provided. The axial direction of the track wheel sets 110 extends radially along the arc-shaped track 113, allowing for smoother rolling and avoiding obstruction. The arc-shaped track 113 is arranged on the ground with the starting end of the waste rock conveyor 104 as its center. The center of the arc-shaped track 113 coincides with the axis of the electric drive slewing bearing 103, and its radius is equal to the distance from the tractor 107 to the starting end. The geared motor 111 is fixedly mounted on the tractor 107. The output end of the geared motor 111 is connected to the track wheel sets 110 via a chain drive assembly 112, enabling it to drive the track wheel sets 110 to move along the arc-shaped track 113. When the waste rock conveyor 104 rotates, the tractor 107 moves synchronously along the arc-shaped track 113 under the drive of the geared motor 111, supporting the end of the waste rock conveyor 104 and ensuring the stability of the entire waste rock conveyor 104 during rotation.

[0025] A gantry frame 108 is fixedly mounted on the top of the tractor 107. A stay cable 109 is mounted on the gantry frame 108. The lower end of the stay cable 109 is connected to the end of the waste rock discharge conveyor 104 for suspending and pulling the waste rock discharge conveyor 104. Through the tractor 107, the gantry frame 108, and the stay cable 109, the end of the waste rock discharge conveyor 104 is reliably supported and can move along the arc track 113 with the tractor 107.

[0026] The waste rock discharge conveyor 104 is a telescopic conveyor. In this embodiment, a socket-type telescopic belt conveyor is used, including a fixed section frame, a movable section frame, and a belt storage bin. The movable section frame is inserted into the fixed section frame, and the two can slide relative to each other through the cooperation of slide rails and rollers. The cylinder body of the telescopic hydraulic cylinder is fixed on the fixed section frame, and the piston rod is connected to the movable section frame, driving the movable section frame to extend and retract. The belt storage bin is set in the telescopic section and includes a fixed redirecting roller and a movable redirecting roller. When the waste rock discharge conveyor 104 extends and retracts, the movable redirecting roller moves with the movable section frame, automatically retracting and extending the belt to maintain a constant belt tension. By extending and retracting, the effective length of the waste rock discharge conveyor 104 is changed, thereby adjusting the waste rock discharge radius.

[0027] Support column 102 is installed on a concrete foundation, providing stable support for the entire device. Electric slewing bearing 103 drives the starting end of the waste rock discharge conveyor 104 to rotate around its axis. Simultaneously, geared motor 111 drives track wheel assembly 110 to move along arc-shaped track 113 via chain drive assembly 112. Tractor 107 moves synchronously with the rotation of waste rock discharge conveyor 104, supporting the end of the conveyor 104 via gantry frame 108 and cable-stayed bridge 109. The waste rock discharge conveyor 104 itself is telescopic, changing its discharge radius. The combination of rotation and telescopic movement allows the material drop point of the waste rock discharge conveyor 104 to be arbitrarily adjusted within the fan-shaped belt.

[0028] The transfer component 20 is located above the starting end of the waste rock discharge conveyor 104 and includes a vertical frame 201, a support frame 202, a bottom frame 203, a funnel 204, a vibration motor 205, a limit slide bar 206, a composite spring 207, and an anti-detachment component 208.

[0029] The upright frame 201 is fixedly connected to the beginning of the waste rock conveyor 104 and rotates synchronously with the waste rock conveyor 104. The support frame 202 is fixed to the top of the upright frame 201 and is a rectangular frame structure. The bottom frame 203 is positioned above the support frame 202, and the bottom frame 203 is connected to the support frame 202 via a shock-absorbing assembly. The bottom outer wall of the funnel 204 is fixedly connected to the bottom frame 203, and the upper opening of the funnel 204 is an enlarged opening, sufficient to cover the varying drop points of the waste rock conveying equipment. The funnel 204 is made of wear-resistant steel plate with an inclination angle of not less than 60° to ensure smooth sliding of the waste rock. The vibration motor 205 consists of two explosion-proof mining vibration motors, which are symmetrically installed on the outer walls of both sides of the funnel 204. The two vibration motors 205 rotate in opposite directions, so that the excitation force is superimposed in the vertical direction and canceled out in the horizontal direction, thereby ensuring that the funnel 204 only vibrates in the vertical direction, preventing gangue from arching and blocking in the funnel, and ensuring that the gangue is discharged evenly.

[0030] The shock absorption assembly includes a limiting slide rod 206, a composite spring 207, and an anti-detachment component 208. The limiting slide rod 206 is fixedly connected to the four corners of the bottom frame 203 and extends downwards through the support frame 202. An anti-detachment component 208 is fixedly connected to one end of the limiting slide rod 206 that passes through the support frame 202 to prevent the limiting slide rod 206 from detaching from the support frame 202. A composite spring 207 is fitted onto each limiting slide rod 206, with the upper end of the composite spring 207 abutting against the bottom frame 203 and the lower end abutting against the support frame 202. The composite spring 207 adopts a structure of a metal helical spring wrapped with rubber, possessing both high load-bearing capacity and high damping characteristics. When the vibration motor 205 operates, the funnel 204 and the bottom frame 203 vibrate axially (vertically) along the limiting slide bar 206. The composite spring 207 absorbs and isolates the vibration, preventing it from being transmitted to the support frame 202, the upright frame 201, and the waste rock conveyor 104. The cooperation between the limiting slide bar 206 and the support frame 202 constrains the horizontal displacement of the bottom frame 203, ensuring that the funnel 204 only vibrates vertically. The anti-detachment component 208 prevents the limiting slide bar 206 from detaching and also serves as an upper limit.

[0031] The waste rock transport equipment first discharges the waste rock into the funnel 204. After the funnel 204 receives the waste rock, the vibrating motor 205 generates vertical vibration, causing the waste rock to be evenly distributed within the funnel 204 and smoothly discharged onto the waste rock discharge conveyor 104. Because the funnel 204 is located above the beginning of the waste rock discharge conveyor 104 and rotates with it, regardless of the rotation angle of the waste rock discharge conveyor 104, the incoming material from the waste rock transport equipment always falls within the upper opening range of the funnel 204, and is then transferred from the funnel 204 to the waste rock discharge conveyor 104, avoiding the problem of inaccurate material discharge after the waste rock discharge conveyor 104 rotates. The composite spring 207 of the shock absorption component isolates the vibration generated by the vibrating motor 205, preventing the vibration from being transmitted to the waste rock discharge conveyor 104 and the electric drive rotary bearing 103.

[0032] The defogging assembly 30 is located below the end of the waste rock conveyor 104 and includes a lifting frame 301, a mounting plate 302, a support shaft 303, a spray head 304, a closed-loop motor 305, and a 3D radar 306.

[0033] The lifting frame 301 is fixedly connected to the lower end of the waste rock conveyor 104 and moves and rotates synchronously with the waste rock conveyor 104. Both ends of the mounting plate 302 are rotatably connected to the lifting frame 301 via support shafts 303, allowing the mounting plate 302 to pitch around the support shafts 303. A closed-loop motor 305 is fixedly mounted on the lifting frame 301, and its output shaft is connected to the support shaft 303 to drive the support shaft 303 to rotate, thereby changing the pitch angle of the mounting plate 302. A spray head 304 is mounted on the surface of the mounting plate 302, employing a high-pressure atomizing nozzle to spray water mist to suppress dust generated at the material drop point. Multiple 3D radars 306 are arranged along the length of the mounting plate 302, used to monitor the height of the waste rock pile in real time and output the pile height data.

[0034] The control device (not shown in the figure) is electrically connected to the 3D radar 306 and the closed-loop motor 305. The control device receives the height data of the gangue pile monitored by the 3D radar 306, calculates the position of the material drop point and the height change of the gangue pile based on this data, and controls the closed-loop motor 305 to drive the support shaft 303 to rotate, thereby synchronously adjusting the pitch angle of the 3D radar 306 and the spray head 304 on the mounting plate 302. When the gangue pile rises, the control device controls the mounting plate 302 to pitch upwards, ensuring that the 3D radar 306 is always aligned with the surface of the gangue pile for monitoring, while simultaneously ensuring that the spray head 304 is always aligned with the material drop point for dust suppression. The control device can also control the telescopic mechanism of the electrically driven rotary bearing 103 and the gangue discharge conveyor 104 based on the pile height data, automatically adjusting the azimuth angle and radius of the gangue discharge to achieve uniform gangue distribution and anti-accumulation control.

[0035] Dust is generated during the waste rock removal process. Spray head 304 sprays water mist to suppress dust. 3D radar 306 monitors the height of the waste rock pile in real time. Based on the data from 3D radar 306, the control equipment controls the closed-loop motor 305 to drive the support shaft 303 to rotate, thereby adjusting the pitch angle of the mounting plate 302 and simultaneously adjusting the pitch angles of 3D radar 306 and spray head 304. In this way, 3D radar 306 is always aimed at the waste rock pile for precise monitoring, and spray head 304 is always aimed at the location where dust is generated to spray and suppress dust. The control equipment also automatically controls the electric drive rotary bearing 103 and the telescopic mechanism of the waste rock removal conveyor 104 based on the waste rock pile height data, changing the waste rock removal azimuth angle and radius to ensure that the waste rock is evenly piled on the waste rock pile, preventing excessive local accumulation, and realizing automatic control of waste rock distribution and anti-accumulation.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A rotary gangue spreading and anti-accumulation gangue disposal device, characterized in that: include: The waste disposal unit (10) includes a base plate (101), an electric drive rotary bearing (103), and a waste disposal conveyor (104). A support column (102) is provided at the bottom of the base plate (101). The inner ring of the electric drive rotary bearing (103) is fixedly installed on the top surface of the base plate (101). The starting end of the waste disposal conveyor (104) is fixedly connected to the outer ring of the electric drive rotary bearing (103). The electric drive rotary bearing (103) can drive the waste disposal conveyor (104) to rotate around it. The waste disposal conveyor (104) is a telescopic conveyor. The transfer assembly (20) is set above the beginning of the gangue discharge conveyor (104). The transfer assembly (20) includes a funnel (204) and a vibration motor (205). The funnel (204) is used to receive the incoming material from the gangue transport equipment and discharge the gangue onto the gangue discharge conveyor (104). The vibration motor (205) is fixedly installed on the outer wall of the funnel (204). A defogging assembly (30) is located at the end of the waste rock conveyor (104). The defogging assembly (30) includes a 3D radar (306) and a spray head (304). The 3D radar (306) is used to monitor the height of the waste rock pile.

2. The rotary gangue feeding and anti-accumulation device according to claim 1, characterized in that, The waste removal unit (10) includes a central shaft (105), which is coaxially arranged with the electric drive rotary bearing (103). The bottom end of the central shaft (105) is fixed on the base plate (101), and the top end of the central shaft (105) is connected to the beginning of the waste removal conveyor (104) through the bearing seat (106).

3. The rotary gangue feeding and anti-accumulation device according to claim 1, characterized in that, The waste disposal unit (10) includes a tractor (107), an arc track (113), and a geared motor (111). The bottom of the tractor (107) is provided with at least one set of track wheels (110). The arc track (113) is arranged with the beginning of the waste disposal conveyor (104) as the center. The geared motor (111) is fixedly installed on the tractor (107). The output end of the geared motor (111) is connected to the track wheels (110) through a chain drive group (112) and can drive the track wheels (110) to move along the arc track (113).

4. The rotary gangue feeding and anti-accumulation device according to claim 3, characterized in that, A gantry frame (108) is fixedly installed on the top of the tractor (107), and a cable-stayed cable (109) is installed on the gantry frame (108). The cable-stayed cable (109) is used to pull the waste rock conveyor (104).

5. A rotary gangue feeding and anti-accumulation device according to claim 1, characterized in that, The transfer assembly (20) includes a vertical frame (201), a support frame (202), a bottom frame (203), and a shock-absorbing assembly. The vertical frame (201) is fixedly connected to the waste conveyor (104). The support frame (202) is fixed on the top of the vertical frame (201). The bottom frame (203) is installed above the support frame (202) through the shock-absorbing assembly. The bottom outer wall of the funnel (204) is fixedly connected to the bottom frame (203).

6. A rotary gangue feeding and anti-accumulation device according to claim 5, characterized in that, The shock absorption assembly includes a limiting slide rod (206), a composite spring (207), and an anti-detachment component (208). The limiting slide rod (206) is fixedly connected to the four corners of the bottom frame (203) and passes through the support frame (202). The end of the limiting slide rod (206) that passes through the support frame (202) is fixedly connected to the anti-detachment component (208). The limiting slide rod (206) is fitted with a composite spring (207).

7. A rotary gangue feeding and anti-accumulation device according to claim 1, characterized in that, The defogging assembly (30) includes a hoisting frame (301), a mounting plate (302), and a closed-loop motor (305). The hoisting frame (301) is fixedly connected to the bottom of the end of the waste rock conveyor (104). The two ends of the mounting plate (302) are rotatably connected to the hoisting frame (301) through support shafts (303). The closed-loop motor (305) is fixedly installed on the hoisting frame (301) and is used to drive the support shafts (303) to rotate, thereby changing the pitch angle of the mounting plate (302).

8. A rotary gangue spreading and anti-accumulation gangue disposal device according to claim 7, characterized in that, The spray head (304) is installed on the surface of the mounting plate (302). There are multiple spray heads (304) arranged along the length of the mounting plate (302).

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