Large-inclination working face chainless conveyor anti-blocking vibration type middle trough and control system

Abstract

The present application relates to the technical field of coal mine underground fully mechanized working face conveyor, in particular to a large-dip-angle working face chainless conveyor anti-blocking vibration type middle trough and control system; the present application comprises a middle trough body and a movable trough body, the movable trough body is positioned with the middle trough body through a pin shaft, and a flexible damping sealing piece is arranged between the horizontal lap joint surface of the movable trough body and the middle trough body, a high-frequency vibrator is fixedly installed below the movable trough body; an AI intelligent camera is installed on the corresponding hydraulic support on the upstream side of the anti-blocking vibration type middle trough, the camera is used for monitoring the coal stacking state of the movable trough body area in real time and outputting a detection signal to a controller, so as to control the start and stop of the high-frequency vibrator. Through the arrangement of the independent movable trough body and the concentration of vibration energy on the material accumulation area, the present application can effectively destroy the material accumulation arch, solves the problems of low efficiency, insecurity and poor effect existing in the artificial high-pressure water flushing mode, and is suitable for large-dip-angle working faces.

Description

Technical Field

[0001] This invention relates to the field of conveyor technology for fully mechanized coal mining faces, specifically to an anti-blocking vibration-type central trough and control system for a chainless conveyor in a steep-angle working face. Background Technology

[0002] With the extension of coal mining to deeper and more complex geological conditions, and the development of mechanized coal mining technology, the mining of steeply inclined coal seams is becoming increasingly common. Currently, chainless conveyors are often used as the main transportation equipment in steeply inclined working faces. Their working principle utilizes the weight of the coal, allowing it to slide down a chute with a large inclination angle, thus achieving continuous transportation. This method avoids the wear and energy consumption of traditional scraper chains and has the advantages of simple structure and low maintenance. However, in actual production, due to the influence of geological conditions at the working face, the conveyor often cannot maintain a single constant inclination angle, and its laying route inevitably has undulating sections, especially the concave parts of "downhill to level slope" or "downhill to uphill". In these undulating sections, the kinetic energy of the coal flow is rapidly consumed at the concave parts, and subsequent material continuously accumulates, easily forming dynamic accumulation, or even completely blocking the chute. Currently, the common on-site treatment for this coal accumulation problem is manual high-pressure water flushing. When coal accumulation is discovered, operators hold high-pressure water hoses and spray water onto the accumulation area, forcing the material to loosen and continue flowing downwards. This method of processing is time-consuming and labor-intensive, and poses significant safety hazards, failing to meet the demands of modern mines for efficient, safe, and intelligent mining. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a clog-resistant vibration-damping central trough for a chainless conveyor with a large inclined working face, comprising a central trough body and a movable trough body, wherein the movable trough body and the central trough body are positioned by a pin shaft, and a flexible vibration-damping seal is provided between the horizontal overlapping surfaces of the movable trough body and the central trough body, and a high-frequency vibrator is fixedly installed below the movable trough body.

[0004] This invention also provides a control system that can accept coal pile signals monitored by an AI smart camera and control the start and stop of a high-frequency vibrator. This invention has a simple and reliable structure, can precisely target the coal pile area, automatically break up arches, and does not interfere with the overall structure of the conveyor, significantly improving the transportation efficiency of the chainless conveyor.

[0005] The technical solution adopted in this invention is: a vibration-resistant central trough for a chainless conveyor with a large-angle working face, comprising a central trough body 1 and a movable trough body 2 disposed within the central trough body 1; the central trough body 1 includes a shovel plate trough side 11, a fixed central plate 12, and a baffle plate trough side 13, the shovel plate trough side 11 is provided with a plane 112 for installing the movable trough body 2, and a pin hole A111 is provided on the plane 112; one side edge of the fixed central plate 12 is provided with a stepped lower step 121, and a window for installing the movable trough body 2 is left between the two fixed central plates 12; the baffle plate trough side 13 is provided with two rectangular openings 131, and a round hole 132 is provided below the two rectangular openings 131, the lower surface of the rectangular openings 131 and the plane 112 are both lower than the lower surface of the central plate 12; The movable groove 2 is welded together with the movable groove side 21 and the movable plate 22. A high-frequency vibrator 23 is fixedly installed directly below the movable plate 22. The movable groove side 21 is provided with two pin holes B211. The two sides of the movable plate 22 are provided with stepped upper steps 221, and the other side is provided with two bosses 222. The power line and signal line of the high-frequency vibrator 23 are led out to the outside of the middle groove 1 through the round hole 132. When the movable groove 2 is installed with the middle groove 1, the two bosses 222 are inserted into the two rectangular openings 131, and then the upper step 221 is placed on the lower step 121. The movable groove 2 is positioned in the middle groove 1 by passing the pin 3 through the pin hole A111 and the pin hole B211. The upper surface of the movable plate 22 is flush with the upper surface of the fixed middle plate 12, and the movable groove 2 can move up and down in the middle groove 1.

[0006] Furthermore, a flexible vibration damping seal 5 is provided between the horizontal overlapping surfaces of the movable trough 2 and the central trough 1. The flexible vibration damping seal 5 is a wear-resistant rubber strip.

[0007] Furthermore, the anti-blocking vibration type central trough is installed in the recessed part of the working face, and an AI smart camera 4 is installed on the hydraulic support beam upstream of the anti-blocking vibration type central trough. Its lens is aimed at the area of ​​the movable trough 2. The AI ​​smart camera 4 has a built-in image recognition algorithm to identify the coal pile status and output detection signals.

[0008] Furthermore, it also includes a control system, which includes a controller. The input of the controller is connected to the AI ​​smart camera 4 via a signal line to receive the coal pile signal detected by the AI ​​smart camera 4. The output of the controller is connected to the high-frequency vibrator 23 via a signal line, and can control the start and stop of the high-frequency vibrator 23. The controller is equipped with a delay module, which is used to start the high-frequency vibrator 23 after the coal pile signal is detected for 3 seconds, and automatically stop the high-frequency vibrator 23 after it has been working for 30 seconds.

[0009] This invention relates to an anti-clogging vibration-type central trough and control system for a chainless conveyor in a steep-angle working face. The system has a simple and reliable structure, can accurately prevent clogging and has a high degree of automation, significantly improves the mining efficiency of the working face, reduces safety risks, saves water resources, and has good prospects for promotion and application.

[0010] The technical solution of the present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0011] Figure 1 This is a cross-sectional view of the anti-vibration type central channel of the present invention; Figure 2 This is a schematic diagram of the anti-vibration central groove structure of the present invention; Figure 3 for Figure 2 AA section view; Figure 4 This is a schematic diagram of the central tank structure of the present invention; Figure 5 for Figure 4 BB section view; Figure 6 This is a schematic diagram of the movable tank structure of the present invention; Figure 7 for Figure 6 CC section view; In the diagram: 1. Middle groove body, 11. Shovel plate groove side, 111. Pin hole A, 112. Plane, 12. Fixed middle plate, 121. Lower step, 13. Baffle groove side, 131. Rectangular opening, 132. Round hole, 2. Movable groove body, 21. Movable groove side, 211. Pin hole B, 22. Movable middle plate, 221. Upper step, 222. Boss, 23. High frequency vibrator, 3. Pin shaft, 4. AI smart camera, 5. Flexible vibration damping seal. Detailed Implementation

[0012] The following is a detailed description of specific embodiments of the present invention with reference to the accompanying drawings: like Figures 1-7As shown, the present invention discloses an anti-clogging vibration-resistant central trough for a chainless conveyor with a large inclined working face, comprising a central trough body 1 and a movable trough body 2 disposed within the central trough body 1; the central trough body 1 includes a shovel plate trough side 11, a fixed central plate 12, and a baffle plate trough side 13. The shovel plate trough side 11 is provided with a plane 112 for mounting the movable trough body 2, and a pin hole A111 is provided on the plane 112; a stepped lower step 121 is provided on one side edge of the fixed central plate 12, and a window for mounting the movable trough body 2 is provided between the two fixed central plates 12; the baffle plate trough side 13 is provided with two rectangular openings 131, and a circular hole 132 is provided below the two rectangular openings 131, the lower surface of the rectangular openings 131 and the plane 112 are both lower than the lower surface of the central plate 12; the movable trough body 2 is welded to the movable trough side 21 and the movable central plate 22. A high-frequency vibrator 23 is fixedly installed directly below the movable plate 22. The movable trough side 21 is provided with two pin holes B211. The two sides of the movable plate 22 are provided with stepped upper steps 221, and the other side is provided with two bosses 222. The power line and signal line of the high-frequency vibrator 23 are led out to the outside of the middle trough 1 through the round hole 132. When the movable trough 2 is installed with the middle trough 1, the two bosses 222 are inserted into the two rectangular openings 131, and then the upper step 221 is overlapped with the lower step 121. The movable trough 2 is positioned in the middle trough 1 by the pin shaft 3 passing through the pin hole A111 and the pin hole B211. The upper surface of the movable plate 22 is flush with the upper surface of the fixed middle plate 12 to ensure the flatness of the coal flow. The movable trough 2 can move up and down in the middle trough 1.

[0013] In this embodiment, a flexible vibration damping seal 5 is provided between the horizontal overlapping surfaces of the movable trough 2 and the central trough 1. The flexible vibration damping seal 5 is a wear-resistant rubber strip, which plays a dual role of vibration isolation and sealing, so that all the energy of the high-frequency vibrator 23 is applied to the movable trough, thereby improving the coal blockage prevention effect.

[0014] In this embodiment, the anti-vibration type central trough is installed at the bottom recess of the working face, and an AI smart camera 4 is installed on the hydraulic support beam upstream of the anti-vibration type central trough. Its lens is aimed at the area of ​​the movable trough 2. The AI ​​smart camera 4 has a built-in image recognition algorithm to identify the coal pile status and output detection signals.

[0015] In this embodiment, a control system is also included. The control system includes a controller. The input terminal of the controller is connected to the AI ​​smart camera 4 via a signal line to receive the coal pile signal detected by the AI ​​smart camera 4. The output terminal of the controller is connected to the high-frequency vibrator 23 via a signal line, which can control the start and stop of the high-frequency vibrator 23. The controller is equipped with a delay module, which is used to start the high-frequency vibrator 23 after the coal pile signal is detected for 3 seconds, and automatically stop the high-frequency vibrator 23 after it has been working for 30 seconds.

[0016] Working principle: When the chainless conveyor is running normally, the upper surface of the moving trough is flush with the upper surface of the fixed middle plate, allowing coal to flow smoothly. An AI smart camera mounted on a hydraulic support collects images of the moving trough area in real time and analyzes them using a built-in algorithm. When coal piles up in the undulating section of the conveyor, the AI ​​smart camera detects the pile and sends a detection signal to the control system. The control system then activates a high-frequency vibrator, directly transmitting vibration energy to the moving trough to generate high-frequency micro-vibrations. This vibration breaks down the friction between the material and the middle plate, as well as the cohesion between the materials, causing the piled-up "coal arch" to collapse, and the coal resumes its flow under its own weight.

[0017] Because the movable tank is isolated from the central tank by rubber parts, the vibration energy is confined to the movable tank area, preventing the whole machine from resonating or being damaged.

[0018] The above detailed description of the technical solutions of the present invention with reference to preferred embodiments is illustrative and not a limitation in form. Those skilled in the art, based on reading this specification, can modify the technical solutions described in the embodiments or make equivalent substitutions for some of the technical features, and such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A clog-resistant, vibration-damping central trough for a chainless conveyor with a large-angle working face, characterized in that: The system includes a central trough (1) and a movable trough (2) located within the central trough (1). The central trough (1) includes a shovel plate groove (11), a fixed middle plate (12), and a baffle groove (13). The shovel plate groove (11) has a plane (112) for installing the movable trough (2), and a pin hole A (111) is provided on the plane (112). The fixed middle plate (12) has a stepped lower step (121) on one side edge, and a window for installing the movable trough (2) is left between the two fixed middle plates (12). The baffle groove (13) has two rectangular openings (131), and a round hole (132) is provided below the two rectangular openings (131). The lower surface of the rectangular openings (131) and the plane (112) are both lower than the lower surface of the middle plate (12). The movable groove (2) is welded together with the movable groove side (21) and the movable plate (22). A high-frequency vibrator (23) is fixedly installed directly below the movable plate (22). The movable groove side (21) is provided with two pin holes B (211). The two sides of the movable plate (22) are provided with stepped upper steps (221), and the other side is provided with two bosses (222). The power line and signal line of the high-frequency vibrator (23) are led out to the outside of the middle groove (1) through the round hole (132). When the movable groove (2) and the middle groove (1) are installed, the two bosses (222) are inserted into the two rectangular openings (131), and then the upper step (221) is attached to the lower step (121). The movable groove (2) is positioned in the middle groove (1) by passing the pin (3) through the pin hole A (111) and the pin hole B (211). The upper surface of the movable plate (22) is flush with the upper surface of the fixed middle plate (12). The movable groove (2) can move up and down in the middle groove (1).

2. The anti-clogging vibration-type central trough of a chainless conveyor with a large inclined working face according to claim 1, characterized in that, A flexible vibration damping seal (5) is provided between the horizontal overlapping surfaces of the movable trough (2) and the central trough (1), and the flexible vibration damping seal (5) is a wear-resistant rubber strip.

3. The anti-clogging vibration-type central trough of a chainless conveyor with a large inclined working face according to claim 1, characterized in that: The anti-blocking vibration type central trough is installed at the bottom recess of the working face, and an AI smart camera (4) is installed on the hydraulic support beam upstream of the anti-blocking vibration type central trough. Its lens is aimed at the area of ​​the moving trough (2). The AI ​​smart camera (4) has a built-in image recognition algorithm to identify the coal pile status and output detection signals.

4. A control system comprising a controller, wherein the input end of the controller is connected to an AI smart camera (4) via a signal line to receive a coal pile signal detected by the AI ​​smart camera (4); the output end of the controller is connected to a high-frequency vibrator (23) via a signal line to control the start and stop of the high-frequency vibrator (23); the controller is provided with a delay module for starting the high-frequency vibrator (23) after the coal pile signal is detected for 3 seconds, and automatically stopping the high-frequency vibrator (23) after it has been working for 30 seconds.

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