Coal mine underground sludge cleaning device

Abstract

The invention discloses a coal mine underground sludge cleaning device which comprises a vehicle body, a sliding rail is arranged on the vehicle body, a sliding table is slidably arranged on the sliding rail, a connecting pipe is fixed to the front face of the sliding table, the tail end of the connecting pipe is connected with a volute shell, a discharging opening is formed in the side face of the volute shell, the discharging opening is connected with a guide pipe, and the guide pipe is connected with the sliding table. The guide pipe is connected to a sludge pump arranged on the vehicle body, and the sludge pump is further connected to a sewage draining exit on the ground. Compared with the prior art, efficient, safe and environment-friendly sludge cleaning work is achieved, and a remarkable effect is brought to underground coal mine sludge cleaning.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine cleaning, in particular to an underground coal mine sludge cleaning device. Background Art

[0002] During coal mining, water tanks are important facilities for storing and treating impurities such as mine water and silt. However, as mining activities deepen, a large amount of impurities such as dust from blast tunneling particles, rock particles, drilling mud, concrete lining support spray mortar and silt gradually accumulate in the water tanks. The presence of these impurities not only affects the normal use of the water tanks, but also poses challenges to the safe production and mechanized and efficient production of the mines.

[0003] At present, many mines still use traditional ordinary pumps to clean water tanks. However, due to the complexity and diversity of sediments in the water tank, ordinary pumps often cannot meet the pumping requirements, especially when dealing with large water inrush and permeable turbid water. Therefore, although the mine will regularly clean the underground central water tank, it is often necessary to perform manual secondary cleaning due to poor cleaning results, which not only increases the difficulty and cost of cleaning work, but also affects the normal production of the mine.

[0004] In order to solve this problem, underground central water tank type sand removal and silt removal pump trucks are now widely used in water tank cleaning work. This type of pump truck has the advantages of low installation and adaptability to the working environment, high working flexibility, and small impact range. It can be directly installed and laid in the water tank and immersed in water for operation. Its appearance allows periodic large-scale cleaning work to be dispersed into a smaller time period, which is not only conducive to dredging water tanks in emergency situations, but also can alleviate the transportation pressure caused by large-scale cleaning.

[0005] However, although the underground central water tank type sand removal and dredging pump truck has solved the problem of water tank cleaning to a certain extent, there are still some problems and challenges. First of all, the underground water tanks in mines are diverse in form and complex in structure, which brings great difficulties to dredging work. The complex water tank structure may make it difficult for dredging equipment to enter or restrict operation, thus affecting the cleaning effect. In addition, the coarse granular materials accumulated in the water tank are difficult to flush and dilute with high-pressure water, and need to be manually shoveled and loaded, which not only increases the labor intensity and difficulty of dredging, but also increases safety hazards. In addition, the spiral collection device of the walking excavator will adhere to the spiral blades when collecting the sticky peat, which not only affects the cleaning efficiency of the equipment, but also requires manual assistance in cleaning, further increasing the difficulty and cost of the cleaning work.

[0006] Therefore, in view of the problems and challenges existing in the dredging work of underground water tanks in coal mines, it is necessary to provide a sludge cleaning device for underground coal mines and develop more efficient, intelligent and environmentally friendly dredging equipment and technologies to improve cleaning efficiency, reduce labor intensity, reduce costs, and ensure the safe production and mechanized and efficient production of mines. Summary of the invention

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a coal mine underground sludge cleaning device, comprising a vehicle body, a slide rail is provided on the vehicle body, a slide platform is slidably provided on the slide rail, a connecting pipe is fixed in front of the slide platform, a volute casing is connected to the end of the connecting pipe, a discharge port is provided on the side of the volute casing, the discharge port is connected to a conduit, the conduit is connected to a sludge pump arranged on the vehicle body, and the sludge pump is also connected to a sewage outlet on the ground.

[0008] Further, as a preference, a connecting tube is fixedly connected to the top of the volute casing, and the connecting tube passes through and is hinged to the connecting tube; An angle-adjusting telescopic cylinder is hingedly connected between the connecting pipe and the connecting cylinder.

[0009] Further, as a preference, a screw is rotatably provided in the connecting tube, and the screw penetrates into the connecting cylinder.

[0010] Furthermore, preferably, a conveyor belt is provided in the slide rail.

[0011] Furthermore, as a preference, the slide rail is hinged in the vehicle body, and a slide rail lifting cylinder is also hinged between the slide rail and the vehicle body.

[0012] Further, preferably, a plurality of inclined blades are distributed on the inner circumference of the volute casing, and the upper and lower ends of each blade are respectively fixed to an upper rotating ring and a lower rotating ring, and the upper rotating ring and the lower rotating ring are rotatably connected to the upper and lower surfaces of the volute casing.

[0013] Further, as a preference, a gear ring is fixed above the upper rotating ring, a gear is rotatably provided in the volute casing, the gear is meshed with the gear ring, and the gear can be driven to rotate by a driving motor fixed on the volute casing.

[0014] Further, as a preference, a filter cylinder is provided between the inner walls of the upper swivel and the lower swivel, and the filter cylinder is fixedly connected to the volute casing.

[0015] Further, as a preference, a plurality of nozzles are distributed outside the volute casing, and the nozzles are connected to a high-pressure water pump; Each of the nozzles is inclined at a certain angle, and the spraying direction is opposite to the vortex direction generated by the blades.

[0016] Furthermore, preferably, an overhead bracket is provided at the bottom of the volute casing.

[0017] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the inclination angle of the volute casing and the connecting pipe can be adjusted by extending and retracting the angle-adjusting telescopic cylinder, so that the volute casing can be tilted at different angles and fit to the bottom of the pool to meet the cleaning needs of the bottom of the pool at different depths and positions; the slide rail lifting cylinder can adjust the inclination angle of the slide rail, further enhancing the adaptability and flexibility of the device.

[0018] In the present invention, through the design of the volute case, combined with the rotation of the blades driven by the drive motor, a strong centrifugal effect is generated, which effectively throws the mud to the surroundings and concentrates it to the discharge port, and then the sludge pump is used for suction, so as to achieve efficient cleaning and suction; the high-pressure water column sprayed by the nozzle can stir up the sediment at the bottom of the pool, reduce the consistency of the sludge, and further improve the suction efficiency. In addition, the spiral water flow sprayed by the nozzle is opposite to the vortex caused by the blades to form turbulence, which increases the impact force on the sludge.

[0019] In the present invention, the design of the filter cylinder can retain the coarse particles in the mud in the filter cylinder, and the coarse particles are transported to the upper end of the connecting pipe by the screw, and lifted to the ground collection device by the conveyor belt, thereby realizing the separation of the coarse particles from the mud. The screening design not only reduces the wear of the coarse particles on the sludge pump, but also reduces the phenomenon of peat attached to the screw, thereby extending the service life of the equipment. The mud and the coarse particles are treated separately, which is conducive to the subsequent resource recovery and reuse, and meets the environmental protection requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a sludge cleaning device in a coal mine; Figure 2 It is a structural schematic diagram of a half-section of a volute casing; Figure 3 It is a structural schematic diagram of the cross section of the volute casing; In the figure: 1. vehicle body; 2. slide rail; 3. slide table; 4. connecting pipe; 41. screw; 5. volute casing; 51. connecting cylinder; 52. blade; 53. upper swivel; 54. lower swivel; 55. filter cylinder; 56. gear ring; 57. gear; 58. bracket; 59. discharge port; 6. conduit; 7. sludge pump; 8. angle adjustment telescopic cylinder; 9. conveyor belt; 10. slide rail lifting cylinder; 11. nozzle; 12. drive motor. DETAILED DESCRIPTION

[0021] See also Figure 1In an embodiment of the present invention, a sludge cleaning device for underground coal mines includes a vehicle body 1, a slide rail 2 is provided on the vehicle body 1, a slide platform 3 is slidably provided on the slide rail 2, a connecting pipe 4 is fixed in front of the slide platform 3, a volute 5 is connected to the end of the connecting pipe 4, a discharge port 59 is provided on the side of the volute 5, the discharge port 59 is connected to a conduit 5, the conduit 5 is connected to a sludge pump 7 provided on the vehicle body 1, and the sludge pump 7 is also connected to a sewage outlet on the ground. The volute 5 is extended into the bottom of the underground water tank of the mine, and the mud at the bottom of the water tank can be discharged to the ground through suction by the sludge pump 7.

[0022] In this embodiment, a connecting tube 51 is fixedly connected to the top of the volute casing 5 , and the connecting pipe 4 passes through and is hinged to the connecting tube 51 .

[0023] In this embodiment, an angle adjustment telescopic cylinder 8 is hinged between the connecting pipe 4 and the connecting tube 51. The angle adjustment telescopic cylinder 8 can adjust the inclination angle of the volute 5 and the connecting pipe 4, so that the volute 5 can be tilted at different angles to fit the bottom of the pool.

[0024] In this embodiment, a screw rod 41 is rotatably disposed in the connection tube 4, and the screw rod 41 penetrates into the connection cylinder 51. The screw rod 41 can be driven to rotate by a driving device disposed in the slide 3.

[0025] In this embodiment, a conveyor belt 9 is provided in the slide rail 2. The coarse granular material accumulated in the connecting tube 51 can be transported to the upper end of the connecting tube 4 through the screw 41, and falls into the conveyor belt 9, and is further lifted by the conveyor belt 9 to the ground collection device, which includes a bucket car or a coal conveyor belt to move the waste out of the mine.

[0026] In this embodiment, the slide rail 2 is hinged in the vehicle body 1, and a slide rail lifting cylinder 10 is also hinged between the slide rail 2 and the vehicle body 1. The slide rail lifting cylinder 10 can adjust the inclination angle of the slide rail 2 so that the slide rail 2 is aligned with the pool bottom of different depths and positions.

[0027] See also Figure 2 and Figure 3 In this embodiment, a plurality of inclined blades 52 are distributed on the inner circumference of the volute casing 5, and the upper and lower ends of each blade 52 are respectively fixed to an upper rotating ring 53 and a lower rotating ring 54, and the upper rotating ring 53 and the lower rotating ring 54 are rotatably connected to the upper and lower surfaces of the volute casing 5.

[0028] In this embodiment, a gear ring 56 is fixed above the upper rotating ring 53 , and a gear 57 is rotatably provided in the volute casing 5 . The gear 57 meshes with the gear ring 56 , and the gear 57 can be driven to rotate by a driving motor 12 fixed on the volute casing 5 .

[0029] The driving motor 12 can drive the blades 52 to rotate along the tilting direction thereof, thereby generating a centrifugal effect to throw the mud in the center to the surroundings, and the mud flows along the volute casing 5 to the discharge port 59 .

[0030] In this embodiment, a filter cylinder 55 is provided between the inner walls of the upper rotating ring 53 and the lower rotating ring 54, and the filter cylinder 55 is fixedly connected to the volute casing 5. The coarse particles in the slurry can be retained in the filter cylinder 55 by the filter cylinder 55, and the coarse particles are transported and discharged by the screw 41 after accumulating at the position of the connecting cylinder 51. In other words, the sediment at the bottom of the pool can be screened by the filter cylinder 55, and the fluid slurry is pumped out from the discharge port 59 by the sludge pump 7, while the solid coarse particles are discharged from the connecting cylinder 51 by the screw 41, which can reduce the wear of the coarse particles on the sludge pump and reduce the phenomenon of peat attached to the screw 41. In addition, when the blades 52 rotate again, they can play the role of cleaning the filter cylinder 55, which can achieve the goal of eliminating daily maintenance.

[0031] In this embodiment, a plurality of nozzles 11 are distributed outside the volute casing 5, and the nozzles 11 are connected to a high-pressure water pump. The nozzles 11 spray high-pressure water columns to the bottom of the pool to stir up the sediment at the bottom of the pool, reduce the consistency of the sludge, and improve the suction efficiency.

[0032] In this embodiment, each nozzle 11 is inclined at a certain angle, and the spraying direction is opposite to the vortex direction generated by the blade 52. In other words, the nozzle 11 can spray a spiral water flow, and the spiral water flow is opposite to the vortex direction caused by the blade 52 to form turbulence and increase the impact force on the sludge.

[0033] In this embodiment, an overhead bracket 58 is provided at the bottom of the volute casing 5, so that there is a certain gap between the bottom of the volute casing 5 and the bottom of the pool to accommodate water flow and sludge to pass through and avoid blockage.

[0034] During the specific implementation, the vehicle body 1 is moved to the edge of the water tank or to a flat position at the bottom of the tank, and the slide rail lifting cylinder 10 is used to adjust the inclination angle of the slide rail 2 so that it is aligned with the bottom of the underground water tank in the mine that needs to be cleaned; Slide the slide 3 to extend the volute casing 5 into the bottom of the water tank in the mine. Adjust the inclination angle of the volute casing 5 and the connecting pipe 4 by extending and retracting the angle adjustment telescopic cylinder 8, so that the volute casing 5 can fit with the bottom of the tank; Start the drive motor 12 to drive the blades 52 to rotate along the tilt direction, generate centrifugal force to throw the mud in the center to the surroundings, and flow along the volute 5 to the discharge port 59; start the equipment to start the sludge pump 7 to suck the sludge; start the high-pressure water pump to spray high-pressure water column to the bottom of the pool through the nozzle 11 to stir up the sediment at the bottom of the pool and reduce the consistency of the sludge; The sludge enters the conduit 6 through the discharge port 59 of the volute casing 5, is sucked by the sludge pump 7 and transported to the ground sewage outlet, and the coarse particles in the sludge are intercepted by the filter cylinder 55 and accumulated in the filter cylinder 55. When the coarse particles accumulate to a certain extent, the screw 41 transports the coarse particles to the upper end of the connecting pipe 4, and the coarse particles fall onto the conveyor belt 9 through the upper end of the connecting pipe 4, and are further lifted by the conveyor belt 9 to the ground collection device, such as a bucket car or a coal conveyor belt, for centralized treatment.

[0035] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A coal mine underground sludge cleaning device, comprising a vehicle body (1), characterized in that: The vehicle body (1) is provided with a slide rail (2), the slide rail (2) is slidably provided with a slide platform (3), a connecting pipe (4) is fixed in front of the slide platform (3), the end of the connecting pipe (4) is connected to a volute casing (5), a discharge port (59) is provided on the side of the volute casing (5), the discharge port (59) is connected to a conduit (5), the conduit (5) is connected to a sludge pump (7) provided on the vehicle body (1), and the sludge pump (7) is also connected to a sewage discharge port on the ground.

2. A coal mine underground sludge cleaning device according to claim 1, characterized in that: A connecting tube (51) is fixedly connected to the top of the volute casing (5), and the connecting pipe (4) passes through and is hingedly connected to the connecting tube (51); An angle-adjustable telescopic cylinder (8) is hingedly connected between the connecting pipe (4) and the connecting cylinder (51).

3. The underground coal mine sludge cleaning device according to claim 1, characterized in that: A screw rod (41) is rotatably disposed in the connecting tube (4), and the screw rod (41) penetrates into the connecting cylinder (51).

4. The underground coal mine sludge cleaning device according to claim 1, characterized in that: A conveyor belt (9) is provided in the slide rail (2).

5. The underground coal mine sludge cleaning device according to claim 1, characterized in that: The slide rail (2) is hinged in the vehicle body (1), and a slide rail lifting cylinder (10) is also hinged between the slide rail (2) and the vehicle body (1).

6. The underground coal mine sludge cleaning device according to claim 1, characterized in that: The volute casing (5) has a plurality of inclined blades (52) distributed around its inner circumference, the upper and lower ends of each blade (52) being respectively fixed to an upper rotating ring (53) and a lower rotating ring (54), and the upper rotating ring (53) and the lower rotating ring (54) being rotatably connected to the upper and lower surfaces of the volute casing (5).

7. A coal mine underground sludge cleaning device according to claim 6, characterized in that: A gear ring (56) is fixed above the upper rotating ring (53), and a gear (57) is rotatably provided in the volute casing (5). The gear (57) is meshed with the gear ring (56), and the gear (57) can be driven to rotate by a driving motor (12) fixed to the volute casing (5).

8. The underground coal mine sludge cleaning device according to claim 6, characterized in that: A filter cylinder (55) is provided between the inner walls of the upper rotating ring (53) and the lower rotating ring (54), and the filter cylinder (55) is fixedly connected to the volute casing (5).

9. The underground coal mine sludge cleaning device according to claim 1, characterized in that: A plurality of nozzles (11) are distributed outside the volute casing (5), and the nozzles (11) are connected to a high-pressure water pump; Each of the nozzles (11) is inclined at a certain angle, and the spraying direction is opposite to the direction of the vortex generated by the blades (52).

10. The underground coal mine sludge cleaning device according to claim 1, characterized in that: An overhead bracket (58) is provided at the bottom of the volute casing (5).

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