Mechanical cleaning device for underground coal bunker of coal mine

Abstract

The invention relates to the technical field of coal mine underground cleaning equipment, and discloses a mechanical cleaning device for a coal mine underground coal bunker, which comprises a coal bunker, the top of the coal bunker is mounted in a connecting bridge, a controller is mounted on the inner wall of the connecting bridge, a supporting bunker is mounted at the bottom of the coal bunker, and a supporting cylinder with an open top is arranged in the coal bunker. A lifting mechanism is arranged in the supporting barrel, absorbent cotton is inserted into the supporting barrel and is of a hollow cylindrical structure, rectangular grooves are vertically and symmetrically formed in the bottom of the absorbent cotton upwards, a plurality of cleaning mechanisms are arranged outside the supporting barrel in a surrounding mode, the cleaning mechanisms are connected with the lifting mechanism, and a water storage mechanism is arranged between the cleaning mechanisms. The cleaning mechanism is arranged to conveniently clean coal adhering to the inner wall of the coal bunker, and the water storage mechanism is arranged to store coal water, flush the inner wall of the coal bunker and store the coal water, so that subsequent cleaning of the inner wall of the coal bunker is facilitated, and water resources are saved.

Description

Technical Field

[0001] The present invention relates to the technical field of underground coal mine cleaning equipment, and more particularly to a mechanical cleaning device for underground coal bunkers in coal mines. Background Art

[0002] The coal bunker is a standby spare unit for the two subsystems of mining area and main tunnel transportation. When the mining area and main tunnel transportation are operating normally, the coal bunker plays a role of regulation and metering. When the main tunnel transportation fails, the coal bunker plays a temporary storage role to maintain continuous production of the working face. After the main tunnel transportation failure is eliminated, the coal stored in the coal bunker will be discharged to the main tunnel transportation. Therefore, the underground coal bunker is an important hub connecting various production links and transportation links in coal mine production. Water, gangue and other debris will inevitably be mixed in the coal. The mixing of water and coal slime will easily cause coal powder to stick to the bunker wall. Over time, several meters thick sticky coal will accumulate on the coal bunker wall, affecting the storage capacity of the coal bunker. In severe cases, it will cause blockage inside the coal bunker. Therefore, in order to ensure the normal operation of the coal bunker, the sticky coal should be cleaned frequently.

[0003] At present, major coal mines mainly adopt manual cleaning methods. Manual cleaning is a method in which workers use some cleaning tools to manually clean the sticky coal in the coal bunker. Manual cleaning is slow, inefficient, and consumes a lot of labor. In addition, the volume of the coal bunker is relatively large, and the cycle of cleaning a coal bunker is relatively long. Therefore, manual cleaning cannot meet the production needs of coal mines.

[0004] In the existing technology, mechanical devices are also used for cleaning. However, the water content of coal in the coal bunker is high. If the coal water is not collected during storage, the bunker will easily collapse. In addition, since the inner wall of the coal bunker is uneven, it is difficult for the uniformly set cleaning device to clean the inner wall, resulting in poor coal bunker cleaning effect. Summary of the Invention

[0005] The present invention provides a mechanical cleaning device for an underground coal bunker in a coal mine, which solves the technical problem in the related art that coal stored in the coal bunker has a high moisture content and thus causes bunker collapse.

[0006] The present invention provides a mechanical cleaning device for a coal bunker in a coal mine, comprising a coal bunker, the top of which is mounted in a connecting bridge, the inner wall of which is mounted with a controller, a supporting bunker mounted at the bottom of the coal bunker, a supporting cylinder with an open top structure arranged in the coal bunker, and a lifting mechanism arranged in the supporting cylinder; The support tube is plugged with absorbent cotton, which is arranged in a hollow cylindrical structure, and a rectangular groove is symmetrically opened vertically upward at the bottom of the absorbent cotton; The lifting mechanism includes a support box and a screw. The screw is set in the support tube. A slide is threadedly connected to the screw. The top of the slide abuts against the washing cotton. The washing cotton is squeezed when the slide moves upward. A plurality of cleaning mechanisms are arranged around the outside of the support cylinder, and the cleaning mechanisms are connected to the lifting mechanisms, and water storage mechanisms are arranged between the cleaning mechanisms.

[0007] Preferably, the support box is fixedly connected to the top of the coal bin through a fixed plate, a motor is fixedly installed on the top surface of the support box, a rotating shaft is installed at the bottom output end of the motor, the bottom of the rotating shaft is fixedly connected to the top of the screw, and the bottom of the screw is connected to the bottom surface of the support tube through a bearing.

[0008] Preferably, the outer wall of the support tube is symmetrically provided with a sliding groove, a sliding seat is threadedly connected to the screw rod, and a slider is symmetrically fixedly connected to the side wall of the sliding seat. The side of the slider is connected to the inner wall of the lifting tube, and the slider slides in the sliding groove as the lifting tube moves. The lifting tube is sleeved on the outside of the support tube, and a sealing ring is fixedly connected to the inner bottom surface of the lifting tube, and the inner wall of the sealing ring abuts against the support tube.

[0009] Preferably, an arc-shaped groove is provided on the top of the support box, the arc-shaped groove is adapted to the rectangular groove provided on the absorbent cotton, and the bottom of the absorbent cotton is in contact with the top of the slide seat.

[0010] Preferably, a winding drum is fixedly connected to the rotating shaft, and limit frames are symmetrically arranged on both sides of the winding drum. The top of the limit frame is fixedly connected to the motor. Multiple reinforcing ropes are wound on the winding drum, and the bottom of the reinforcing rope passes through the limit frame and is fixedly connected to the top of the slide.

[0011] Preferably, the top of the support box is symmetrically rotatably connected to a limit rod, and the limit rod is arranged in an inverted L-shaped structure, and the inner top surface of the limit rod abuts against the top wall of the absorbent cotton.

[0012] Preferably, the cleaning mechanism includes a cleaning rod, the side wall of the cleaning rod abuts against the inner wall of the coal bin, the top of the cleaning rod is fixedly connected to a crushing block, the side wall of the cleaning rod is fixedly connected to a support rod, the top of the support rod is fixedly connected to an inclined rod, the top of the inclined rod is fixedly connected to a filter cylinder, and one end of the support rod is connected to the outer surface of the lifting cylinder.

[0013] Preferably, a filter tank is provided on the top of the filter cartridge, a grid plate is fixedly connected inside the filter tank, a filter cloth is placed on the top of the grid plate, filter stones are wrapped in the filter cloth, a liquid outlet pipe is fixedly connected to the bottom of the filter cartridge, and the bottom of the liquid outlet pipe is fixedly connected to the top of the lifting cylinder.

[0014] Preferably, the water storage mechanism includes a water storage plate, and the water storage plate is configured as a hollow arc-shaped plate structure, the side wall of the water storage plate is fixedly connected to the cleaning rod, the top of the water storage plate is fixedly connected to an arc-shaped cleaning plate, the bottom of the water storage plate is fixedly connected to multiple groups of water outlet pipes, a nozzle is fixedly installed at the bottom of the water outlet pipe, and an electric control valve is provided on the nozzle, the water storage plate is fixedly connected to a water supply pipe on the side facing the lifting cylinder, and the side of the water supply pipe is fixedly connected to the lifting cylinder.

[0015] Preferably, a reinforcement plate is symmetrically fixedly connected to the bottom of the support tube, the side walls of the reinforcement plate are fixedly connected to the inner wall of the coal bunker, the bottom of the reinforcement plate is fixedly connected to a support foot, and the bottom of the support foot is fixedly connected to the top wall of the coal bunker lower hopper. Compared with the prior art, the present invention has the following beneficial effects: The present invention adopts technical means that cooperate with a support tube, absorbent cotton, a cleaning mechanism and a water storage mechanism. The support tube is cooperated with the absorbent cotton to collect the coal water inside the coal bunker. The cleaning mechanism is provided to facilitate the cleaning of the sticky coal on the inner wall of the coal bunker. The water storage mechanism can not only store the coal water, but also flush the inner wall of the coal bunker, which overcomes the shortcomings of the existing technology and solves the problem that the coal bunker is prone to bunker collapse accidents. It can also store the coal water, which is convenient for subsequent cleaning of the inner wall of the coal bunker, is more environmentally friendly, saves water resources, and improves the economic benefits of the device.

[0016] The present invention adopts technical means that cooperate with a motor, a rotating shaft, a screw, a slide and a lifting cylinder. The screw drives the slide to move up and down, thereby driving the lifting cylinder to move up and down linearly, which is convenient for squeezing the absorbent cotton and also convenient for driving the cleaning mechanism to clean the inner wall of the coal bin, overcoming the shortcomings of the existing technology, and thus allowing the absorbent cotton to be compressed to squeeze out water and recycled, with higher economic benefits.

[0017] The present invention uses technical means that cooperate with a cleaning rod, a filter cartridge, an inclined rod and a support rod. The cleaning rod moves upward to clean the inner wall of the coal bin. The filter cartridge is provided to facilitate filtering the coal in the coal bin, precipitating its internal moisture and collecting it, thereby overcoming the shortcomings of the existing technology, further reducing the moisture content of the coal inside the coal bin, and the cleaning rod facilitates the removal of sticky coal on the inner wall of the coal bin, resulting in better cleaning effect and higher cleaning efficiency.

[0018] The present invention adopts the technical means of cooperating with a water storage plate, a cleaning plate and a nozzle. Water is stored by the water storage plate, the inner wall of the coal bunker is cleaned by the cleaning plate, and the inner wall of the coal bunker is further cleaned by the nozzle, which overcomes the shortcomings of the existing technology, effectively improves the coal bunker cleaning efficiency, and makes the coal bunker cleaning effect stronger. In particular, the nozzle can effectively clean the uneven positions on the inner wall of the coal bunker, effectively avoids the adhesion of coal, and has a better cleaning effect and a higher cleaning rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the internal cross-section of the coal bunker of the present invention; Figure 3 This is a schematic diagram of the overall structure of the coal bunker interior according to the present invention; Figure 4It is a schematic diagram of the overall structure of the support cylinder and the lifting mechanism of the present invention; Figure 5 This is a schematic diagram of the overall structure of the support box of the present invention from the front view; Figure 6 It is a schematic diagram of the overall structure of the cleaning mechanism of the present invention; Figure 7 It is a schematic diagram of the decomposed structure of the filter cartridge of the present invention; Figure 8 It is a schematic diagram of the overall structure of the water storage mechanism of the present invention.

[0020] In the figure: 100, coal bunker; 101, connecting bridge; 102, controller; 103, support bunker; 200, lifting mechanism; 201, support box; 202, motor; 203, rotating shaft; 204, screw; 205, slide; 206, slider; 207, lifting cylinder; 208, arc groove; 209, winding cylinder; 210, sealing ring; 211, limit frame; 212, reinforcement rope; 213, limit rod; 300, support tube; 301, slide; 302, reinforcement plate; 303, support foot; 400, absorbent cotton; 401, rectangular groove; 500, cleaning mechanism; 501, cleaning rod; 502, filter cartridge; 5021, filter tank; 5022, grid plate; 5023, filter cloth; 5024, filter stone; 5025, liquid outlet pipe; 503, inclined rod; 504, support rod; 505, crushing block; 600, water storage mechanism; 601, water storage plate; 602, cleaning plate; 603, water outlet pipe; 604, nozzle; 605, water supply pipe. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] The embodiment of the present invention discloses a mechanical cleaning device for coal bunkers in coal mines, such as Figure 1-8 As shown, it includes: a coal bunker 100, the top of the coal bunker 100 is installed in a connecting bridge 101, a controller 102 is installed on the inner wall of the connecting bridge 101, a support bunker 103 is installed at the bottom of the coal bunker 103, a support cylinder 300 with an open top is provided in the coal bunker 100, and a lifting mechanism 200 is provided in the support cylinder 300; It should be noted that the support tube 300 is plugged with absorbent cotton 400, and the absorbent cotton 400 is configured as a hollow cylindrical structure, and a rectangular groove 401 is symmetrically opened vertically upward at the bottom of the absorbent cotton 400; Specifically, the lifting mechanism 200 includes a support box 201 and a screw 204. The screw 204 is disposed in the support tube 300. A slide 205 is threadedly connected to the screw 204. The top of the slide 205 abuts against the washing cotton 400. The washing cotton 400 is squeezed when the slide 205 moves upward. It should be noted that a plurality of cleaning mechanisms 500 are disposed around the outside of the support tube 300 , and the cleaning mechanisms 500 are connected to the lifting mechanism 200 , and a water storage mechanism 600 is disposed between the cleaning mechanisms 500 .

[0023] The working principle and beneficial effects of the above technical solution are: Working principle: During use, the present invention is provided with a support tube 300 and placed vertically in the coal bunker 100, so that the moisture precipitated from the coal can be collected during the coal storage process inside the coal bunker 100. By inserting absorbent cotton 400 into the support tube 300, the water contained in the coal can be better absorbed. After the absorbent cotton 400 is saturated, the moisture is accumulated in the support tube 300 for storage, so as to avoid bunker collapse accidents during the coal unloading process. By providing multiple sets of cleaning mechanisms 500, the inside of the coal bunker 100 can be quickly cleaned after unloading, so as to avoid coal sticking to the inner wall of the coal bunker 100. By providing multiple water storage mechanisms 600, it is convenient to collect the precipitated coal water, and then use it to clean the inner wall of the coal bunker 100.

[0024] Beneficial effects: The present invention adopts technical means of cooperating with a support tube 300, absorbent cotton 400, a cleaning mechanism 500 and a water storage mechanism 600. The support tube 300 cooperates with the absorbent cotton 400 to collect the coal water inside the coal bin 100. The cleaning mechanism 500 is provided to facilitate cleaning the sticky coal on the inner wall of the coal bin 100. The water storage mechanism 600 is provided to not only store the coal water but also flush the inner wall of the coal bin 100, thereby overcoming the deficiencies in the prior art and solving the problem that the coal bin 100 is prone to bunker collapse accidents. The coal water can also be stored to facilitate subsequent cleaning of the inner wall of the coal bin 100, which is more environmentally friendly, saves water resources and improves the economic benefits of the device.

[0025] In a specific embodiment: the support box 201 is fixedly connected to the top of the coal bin 100 through a fixed plate, a motor 202 is fixedly installed on the top surface of the support box 201, a rotating shaft 203 is installed on the bottom output end of the motor 202, the bottom of the rotating shaft 203 is fixedly connected to the top of the screw 204, and the bottom of the screw 204 is connected to the inner bottom surface of the support tube 300 through a bearing.

[0026] It should be noted that the outer wall of the support tube 300 is symmetrically provided with a slide groove 301, the screw 204 is threadedly connected to the slide seat 205, the side wall of the slide seat 205 is symmetrically fixedly connected with a slider 206, the side of the slider 206 is connected to the inner wall of the lifting tube 207, and the slider 206 slides in the slide groove 301 as the lifting tube 207 moves, the lifting tube 207 is sleeved on the outside of the support tube 300, and the inner bottom surface of the lifting tube 207 is fixedly connected with a sealing ring 210, and the inner wall of the sealing ring 210 abuts against the support tube 300.

[0027] It should be noted that an arcuate groove 208 is provided on the top of the support box 201 , and the arcuate groove 208 is adapted to the rectangular groove 401 provided on the absorbent cotton 400 , and the bottom of the absorbent cotton 400 is in contact with the top of the slide 205 .

[0028] In addition, a winding drum 209 is fixedly connected to the rotating shaft 203, and a limiting frame 211 is symmetrically arranged on both sides of the winding drum 209. The top of the limiting frame 211 is fixedly connected to the motor 202. Multiple strands of reinforcement rope 212 are wound on the winding drum 209, and the bottom of the reinforcement rope 212 passes through the limiting frame 211 and is fixedly connected to the top of the slide 205.

[0029] Specifically, the top of the support box 201 is symmetrically rotatably connected to the limiting rod 213, and the limiting rod 213 is set in an inverted L-shaped structure, and the inner top surface of the limiting rod 213 abuts against the top wall of the absorbent cotton 400.

[0030] The working principle and beneficial effects of the above technical solution are: Working principle: During use, the present invention starts the motor 202 to drive the rotating shaft 203 to rotate, and the rotating shaft 203 drives the screw 204 to rotate, so that the slide 205 can move up and down. During the coal unloading process, the slide 205 is moved to the bottom of the screw 204. After the coal unloading is completed, during the cleaning process of the coal bin 100, the screw 204 drives the slide 205 to move upward, and the slide 205 drives the lifting cylinder 207 to move upward through the slider 206. The lifting cylinder 207 moves upward to squeeze the absorbent cotton 400 and squeeze out the coal water in the absorbent cotton 400. The squeezed absorbent cotton 400 can be drawn out from the top of the support box 201 for easy recycling next time, which is lower in cost and higher in economic benefit. The rotating shaft 203 is provided to cooperate with the winding drum 209 and the reinforcing rope 212 to further reinforce the slide 205, so that the slide 205 has higher stability during the movement.

[0031] Beneficial effects: The present invention adopts technical means that cooperate with the motor 202, the rotating shaft 203, the screw 204, the slide 205 and the lifting cylinder 207. The screw 204 drives the slide 205 to move up and down, thereby driving the lifting cylinder 207 to move up and down linearly, which is convenient for squeezing the absorbent cotton 400 and also convenient for driving the cleaning mechanism 500 to clean the inner wall of the coal bin 100, overcoming the shortcomings of the existing technology, and thus enabling the absorbent cotton 400 to be compressed to squeeze out water and recycled, with higher economic benefits.

[0032] In a specific embodiment: the cleaning mechanism 500 includes a cleaning rod 501, the side wall of the cleaning rod 501 abuts against the inner wall of the coal bin 100, the top of the cleaning rod 501 is fixedly connected to a crushing block 505, the side wall of the cleaning rod 501 is fixedly connected to a support rod 504, the top of the support rod 504 is fixedly connected to an inclined rod 503, the top of the inclined rod 503 is fixedly connected to a filter cartridge 502, and one end of the support rod 504 is connected to the outer surface of the lifting cylinder 207.

[0033] It should be noted that a filter tank 5021 is provided on the top of the filter cartridge 502, a grid plate 5022 is fixedly connected inside the filter tank 5021, a filter cloth 5023 is placed on the top of the grid plate 5022, and filter stones 5024 are wrapped in the filter cloth 5023. A liquid outlet pipe 5025 is fixedly connected to the bottom of the filter cartridge 502, and the bottom of the liquid outlet pipe 5025 is fixedly connected to the top of the lifting cylinder 207.

[0034] The working principle and beneficial effects of the above technical solution are: Working principle: During use, the present invention facilitates the upward movement of the lifting cylinder 207 to drive multiple filter cylinders 502 to move upward, and the filter cylinders 502 drive multiple cleaning rods 501 to move upward to clean the sticky coal on the inner wall of the coal bin 100. By providing an inclined rod 503 in conjunction with the support rod 504, it is convenient to support the cleaning rod 501 and enhance stability. By providing a filter cylinder 502 with a filter groove 5021 opened inside and a filter stone 5024 wrapped with a filter cloth 5023, it is convenient to filter and collect the water in the coal, and it is more practical. The water accumulated in the filter cylinder 502 enters the lifting cylinder 207 through the liquid outlet pipe 5025 for collection. It has a simple structure and strong practicality.

[0035] Beneficial effect: The present invention uses the technical means of cooperating with the cleaning rod 501, the filter cartridge 502, the inclined rod 503 and the support rod 504. The cleaning rod 501 moves upward to clean the inner wall of the coal bin 100. The filter cartridge 502 is provided to facilitate filtering the coal in the coal bin 100, precipitating its internal moisture and collecting it, thereby overcoming the shortcomings of the existing technology, further reducing the moisture content of the coal in the coal bin 100, and the cleaning rod 501 facilitates the removal of sticky coal on the inner wall of the coal bin 100, resulting in better cleaning effect and higher cleaning efficiency.

[0036] In a specific embodiment: the water storage mechanism 600 includes a water storage plate 601, and the water storage plate 601 is configured as a hollow arc-shaped plate structure, the side wall of the water storage plate 601 is fixedly connected to the cleaning rod 501, the top of the water storage plate 601 is fixedly connected to an arc-shaped cleaning plate 602, the bottom of the water storage plate 601 is fixedly connected to multiple groups of water outlet pipes 603, the bottom of the water outlet pipe 603 is fixedly installed with a nozzle 604, and the nozzle 604 is provided with an electric control valve, the water storage plate 601 is fixedly connected to a water supply pipe 605 on the side facing the lifting cylinder 207, and the side of the water supply pipe 605 is fixedly connected to the lifting cylinder 207.

[0037] It should be noted that the bottom of the support tube 300 is symmetrically fixedly connected to a reinforcement plate 302, the side wall of the reinforcement plate 302 is fixedly connected to the inner wall of the coal bin 100, the bottom of the reinforcement plate 302 is fixedly connected to a support foot 303, and the bottom of the support foot 303 is fixedly connected to the top wall of the lower hopper of the coal bin 100.

[0038] The working principle and beneficial effects of the above technical solution are: Working principle: During use, the present invention uses a water storage plate 601 in conjunction with a water pipe 605 to facilitate the dispersion of water stored in the support cylinder 300 and store it in the water storage plate 601, thereby greatly increasing the water storage capacity of the device. When cleaning the coal bunker 100 after unloading the coal, the water storage plate 601 moves following the cleaning rod 501. The water storage plate 601 is tightly attached to the inner wall of the coal bunker 100, and the cleaning plate 602 fixedly connected to the top is used to scrape the inner wall of the coal bunker 100 to remove the coal slime stuck on the inner wall of the coal bunker 100. By opening multiple groups of nozzles 604, the nozzles 604 absorb the coal water inside the water storage plate 601 and spray it on the inner wall of the coal bunker 100, which can clean the uneven positions of the inner wall of the coal bunker 100 and achieve a better cleaning effect.

[0039] Beneficial effects: The present invention adopts technical means of cooperating with a water storage plate 601, a cleaning plate 602 and a nozzle 604. Water is stored by the water storage plate 601, the inner wall of the coal bin 100 is cleaned by the cleaning plate 602, and the inner wall of the coal bin 100 is further cleaned by the nozzle 604, which overcomes the shortcomings of the existing technology, effectively improves the cleaning efficiency of the coal bin 100, and makes the cleaning effect of the coal bin 100 stronger. In particular, the nozzle 604 can effectively clean the uneven positions of the inner wall of the coal bin 100, effectively avoid the adhesion of coal, and has a better cleaning effect and a higher cleaning rate.

[0040] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mechanical cleaning device for a coal bunker in a coal mine, comprising a coal bunker (100), wherein the top of the coal bunker (100) is mounted in a connecting bridge (101), a controller (102) is mounted on the inner wall of the connecting bridge (101), and a supporting bunker (103) is mounted at the bottom of the coal bunker (100), characterized in that: A support cylinder (300) with an open top is provided in the coal bunker (100), and a lifting mechanism (200) is provided in the support cylinder (300); The support tube (300) is plugged with absorbent cotton (400), and the absorbent cotton (400) is configured as a hollow cylindrical structure, and a rectangular groove (401) is symmetrically opened vertically upward at the bottom of the absorbent cotton (400); The lifting mechanism (200) comprises a support box (201) and a screw (204), wherein the screw (204) is disposed in a support cylinder (300), and a slide (205) is threadedly connected to the screw (204), wherein the top of the slide (205) abuts against the washing cotton (400), and the washing cotton (400) is squeezed when the slide (205) moves upward; A plurality of cleaning mechanisms (500) are arranged around the outside of the support cylinder (300), and the cleaning mechanisms (500) are connected to the lifting mechanism (200). A water storage mechanism (600) is arranged between the cleaning mechanisms (500).

2. A mechanical cleaning device for coal bunkers in coal mines according to claim 1, characterized in that: The support box (201) is fixedly connected to the top of the coal bunker (100) via a fixing plate, a motor (202) is fixedly installed on the top surface of the support box (201), a rotating shaft (203) is installed at the bottom output end of the motor (202), the bottom of the rotating shaft (203) is fixedly connected to the top of the screw (204), and the bottom of the screw (204) is connected to the inner bottom surface of the support cylinder (300) via a bearing.

3. A mechanical cleaning device for coal bunkers in coal mines according to claim 2, characterized in that: The outer wall of the support tube (300) is symmetrically provided with a slide groove (301), and the side wall of the slide seat (205) is symmetrically fixedly connected with a slider (206), the side of the slider (206) is connected to the inner wall of the lifting tube (207), and the slider (206) slides in the slide groove (301) as the lifting tube (207) moves. The lifting tube (207) is sleeved on the outside of the support tube (300), and the inner bottom surface of the lifting tube (207) is fixedly connected with a sealing ring (210), and the inner wall of the sealing ring (210) abuts against the support tube (300).

4. A mechanical cleaning device for coal bunkers in coal mines according to claim 3, characterized in that: An arcuate groove (208) is provided on the top of the support box (201), and the arcuate groove (208) is adapted to the rectangular groove (401) provided on the absorbent cotton (400), and the bottom of the absorbent cotton (400) abuts against the top of the slide seat (205).

5. The mechanical cleaning device for coal bunkers in coal mines according to claim 3, characterized in that: A winding drum (209) is fixedly connected to the rotating shaft (203), and limiting frames (211) are symmetrically provided on both sides of the winding drum (209). The top of the limiting frame (211) is fixedly connected to the motor (202). Multiple reinforcing ropes (212) are wound around the winding drum (209), and the bottom of the reinforcing rope (212) passes through the limiting frame (211) and is fixedly connected to the top of the slide (205).

6. The mechanical cleaning device for coal bunkers in coal mines according to claim 2, characterized in that: The top of the support box (201) is symmetrically rotatably connected to a limiting rod (213), and the limiting rod (213) is arranged in an inverted L-shaped structure, and the inner top surface of the limiting rod (213) abuts against the top wall of the absorbent cotton (400).

7. The mechanical cleaning device for coal bunkers in coal mines according to claim 1, characterized in that: The cleaning mechanism (500) includes a cleaning rod (501), the side wall of the cleaning rod (501) abuts against the inner wall of the coal bin (100), the top of the cleaning rod (501) is fixedly connected to a crushing block (505), the side wall of the cleaning rod (501) is fixedly connected to a support rod (504), the top of the support rod (504) is fixedly connected to an inclined rod (503), the top of the inclined rod (503) is fixedly connected to a filter cartridge (502), and one end of the support rod (504) is connected to the outer surface of the lifting cylinder (207).

8. The mechanical cleaning device for coal bunkers in coal mines according to claim 7, characterized in that: A filter tank (5021) is provided at the top of the filter cartridge (502), a grid plate (5022) is fixedly connected to the inside of the filter tank (5021), a filter cloth (5023) is placed on the top of the grid plate (5022), and filter stones (5024) are wrapped in the filter cloth (5023), a liquid outlet pipe (5025) is fixedly connected to the bottom of the filter cartridge (502), and the bottom of the liquid outlet pipe (5025) is fixedly connected to the top of the lifting cylinder (207).

9. The mechanical cleaning device for coal bunkers in coal mines according to claim 7, characterized in that: The water storage mechanism (600) includes a water storage plate (601), and the water storage plate (601) is configured as a hollow arc-shaped plate structure. The side wall of the water storage plate (601) is fixedly connected to the cleaning rod (501). The top of the water storage plate (601) is fixedly connected to an arc-shaped cleaning plate (602). The bottom of the water storage plate (601) is fixedly connected to multiple groups of water outlet pipes (603). A nozzle (604) is fixedly installed at the bottom of the water outlet pipe (603), and an electric control valve is provided on the nozzle (604). The water storage plate (601) is fixedly connected to a water supply pipe (605) on the side facing the lifting cylinder (207), and the side of the water supply pipe (605) is fixedly connected to the inside of the lifting cylinder (207).

10. The mechanical cleaning device for coal bunkers in coal mines according to claim 1, characterized in that: The bottom of the support cylinder (300) is symmetrically fixedly connected to a reinforcement plate (302), the side wall of the reinforcement plate (302) is fixedly connected to the inner wall of the coal bunker (100), the bottom of the reinforcement plate (302) is fixedly connected to a support foot (303), and the bottom of the support foot (303) is fixedly connected to the top wall of the lower hopper of the coal bunker (100).

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