Anti-blocking drainage device for coal mine water prevention and control

Abstract

The utility model belongs to the technical field of coal drainage devices, and particularly relates to an anti-blocking drainage device for preventing water in a coal mine, which comprises a drainage pipe main body, a filter screen disc is fixedly connected to the inner wall of the drainage pipe main body, a water pumping assembly is arranged on the side face of the drainage pipe main body, and a striking device is arranged on the inner wall of the drainage pipe main body. The striking device comprises a motor support, the motor support is fixedly connected to the inner wall of the pipeline body, a driving assembly is arranged on the side, away from the filter screen disc, of the motor support, the driving end of the driving assembly is fixedly connected with a jarring, and the side, close to the motor support, of the filter screen disc is fixedly connected with a struck ring. According to the utility model, the problem that in the drainage operation process, impurities in water are attached to the filter screen disc, so that meshes are blocked by the impurities, and the drainage amount is reduced is solved, and the normal drainage capacity of the device is ensured.

Description

A clog-resistant drainage device for water control in coal mines Technical Field

[0001] This utility model belongs to the technical field of coal mine drainage devices, specifically relating to a drainage device for preventing blockages in coal mines. Background Technology

[0002] Coal mine water control and drainage systems play a crucial role in coal mining, especially in preventing water accumulation and blockages. During coal mining, water accumulation not only affects mine safety but can also lead to production interruptions and equipment damage. Therefore, designing an efficient anti-blockage drainage system is particularly important. During coal mining, groundwater often seeps into the mine through fissures and pores, causing mine water accumulation. This water accumulation not only increases the difficulty of mining but can also trigger safety accidents such as mine flooding and inrush; therefore, effective drainage measures must be implemented.

[0003] Patent publication number CN219316997U discloses a drainage device for water control in coal mine geological engineering, including a water collection device and a drainage pipe. A housing is installed between the water collection device and the drainage pipe. Multiple filter frames are arranged inside the housing, and a second filter layer is installed inside the housing. A filter base is installed at the lower end of the housing. The drainage pipe and the filter base are fixedly connected. The multiple filter frames and the second filter layer are used for coarse filtration, while the filter base is used for fine filtration. A snap-fit ​​assembly is fixedly connected to the upper end of the housing. The snap-fit ​​assembly includes a snap ring, a support column, and a limiting ring. The support column is located between the snap ring and the limiting ring, and a connecting rod is slidably connected inside the limiting ring. Compared with the prior art, the drainage device for water control in coal mine geological engineering according to this patent facilitates the filtration of water collected by the drainage device, thereby preventing impurities in the water from clogging the drainage device.

[0004] However, the current drainage devices for water control in coal mine geological engineering have the following problems: during the drainage operation, impurities in the water adhere to the filter screen, causing the mesh to be blocked by impurities and reducing the drainage volume. Therefore, we propose a blockage-resistant drainage device for water control in coal mines. Summary of the Invention

[0005] The purpose of this invention is to provide a drainage device for coal mine water control that prevents clogging, which can solve the problem in related technologies where impurities in the water adhere to the filter screen during drainage operations, causing the mesh to become clogged and reducing the drainage volume.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A drainage device for preventing blockages in coal mines includes a drainage pipe body, a filter screen fixedly connected to the inner wall of the drainage pipe body, a pumping assembly arranged on the side of the drainage pipe body, and a knocking device arranged on the inner wall of the drainage pipe body. The knocking device includes a motor bracket, which is fixedly connected to the inner wall of the drainage pipe body. A driving assembly is arranged on the side of the motor bracket away from the filter screen, and a vibration ring is fixedly connected to the driving end of the driving assembly. A receiving ring is fixedly connected to the side of the filter screen close to the motor bracket.

[0008] The drive assembly includes a drive motor, the side of which is fixedly connected to the motor bracket on the side away from the filter screen. The output shaft of the drive motor is fixedly connected to a reciprocating lead screw, and a threaded slip ring is threadedly connected to the threaded surface of the reciprocating lead screw. A vibration ring is fixedly connected to the outer wall of the threaded slip ring, and a limiting groove is provided on the side of the vibration ring. A limiting slide post is fixedly connected to the side of the filter screen near the drive motor. The threaded slip ring is provided at the drive end of the drive assembly.

[0009] The water pump assembly includes a water inlet frame, which is fixedly connected to one end of the drain pipe body near the blow-off device. A dual-output motor is fixedly connected to the top of the water inlet frame, and water collection blades are fixedly connected to the two output shafts of the dual-output motor.

[0010] The side of the impact ring closest to the motor bracket is located on the motion trajectory of the side of the impact ring furthest from the motor bracket, and the inner wall of the groove of the limiting slot is in contact with the outer wall of the limiting slide.

[0011] A crushing device is provided on the side of the filter screen away from the reciprocating screw. The crushing device includes an inner conical friction ring. The side of the inner conical friction ring is fixedly connected to the side of the filter screen away from the reciprocating screw. A linkage shaft is fixedly connected to the side of the reciprocating screw close to the filter screen. A crushing wheel is rotatably connected to the outer wall of the linkage shaft. A conical friction wheel is fixedly connected to the side of the crushing wheel away from the linkage shaft. A scraper is fixedly connected to the outer wall of the linkage shaft.

[0012] The outer wall of the conical friction wheel and the inner wall of the inner conical friction ring are both rough surfaces, and the outer wall of the conical friction wheel is in contact with the inner wall of the inner conical friction ring.

[0013] The outer wall of the crushing wheel is in contact with the side of the filter screen near the inner cone friction ring, and the side of the scraper plate near the filter screen is in contact with the side of the filter screen near the scraper plate.

[0014] The technical effects achieved by this utility model are as follows:

[0015] This invention, through the setting of the knocking device, enables the motor bracket, drive motor, reciprocating screw, threaded slip ring, impact ring, limiting groove, limiting slide column, and impacted ring to cooperate. The reciprocating threaded motion of the moving threaded slip ring causes the impact ring to reciprocate under the limiting action of the limiting groove and limiting slide column. This reciprocating motion causes the impact ring to repeatedly impact the impacted ring, and the impacted ring transmits the impact force to the filter screen, causing the coal impurities attached to the filter screen to be knocked off. This prevents the filter screen mesh from being blocked by impurities during drainage operations, thus ensuring the normal output of the drainage system.

[0016] This invention, through the setting of a crushing device, enables the inner conical friction ring, linkage shaft, crushing wheel, conical friction wheel, and scraper plate to work together. The crushing wheel rotates around the linkage shaft, driving the conical friction wheel to rotate around the linkage shaft. When the conical friction wheel rotates around the linkage shaft, it rotates again around its own center point under the frictional force of the inner conical friction ring, thereby causing the crushing wheel to rotate around its own center point. This allows the crushing wheel to crush large hard impurities blocked by the filter screen, further ensuring the normal operation of the drainage system. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the entire utility model;

[0018] Figure 2 is a schematic diagram of the structure of the water inlet frame of this utility model;

[0019] Figure 3 is a schematic diagram of the structure of the motor bracket of this utility model;

[0020] Figure 4 is an enlarged schematic diagram of the structure at point A in Figure 3 of this utility model;

[0021] Figure 5 is a schematic diagram of the structure of the scraper plate of this utility model;

[0022] Figure 6 is an enlarged schematic diagram of the structure at point B in Figure 5 of this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Drainage pipe body; 2. Filter screen; 3. Pump assembly; 31. Inlet frame; 32. Dual-outlet motor; 33. Water collection plate blade; 4. Impact removal device; 41. Motor bracket; 42. Drive motor; 43. Reciprocating screw; 44. Threaded slip ring; 45. Vibration ring; 46. Restriction groove; 47. Restriction slide column; 48. Impact ring; 5. Crushing device; 51. Inner conical friction ring; 52. Linkage shaft; 53. Crushing wheel; 54. Conical friction wheel; 55. Scraper. Detailed Implementation

[0025] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0026] As shown in Figures 1-5, a drainage device for preventing blockages in coal mines includes a drainage pipe body 1, a filter screen 2 fixedly connected to the inner wall of the drainage pipe body 1, a pump assembly 3 provided on the side of the drainage pipe body 1, and a knocking device 4 provided on the inner wall of the drainage pipe body 1. The knocking device 4 includes a motor bracket 41, which is fixedly connected to the inner wall of the drainage pipe body 1. A drive assembly is provided on the side of the motor bracket 41 away from the filter screen 2. A vibration ring 45 is fixedly connected to the drive end of the drive assembly, and a receiving ring 48 is fixedly connected to the side of the filter screen 2 near the motor bracket 41. The drive end ensures the normal operation of the device.

[0027] The drive assembly includes a drive motor 42, which is fixedly connected to the side of the motor bracket 41 away from the filter screen 2. The output shaft of the drive motor 42 is fixedly connected to a reciprocating lead screw 43. A threaded slip ring 44 is threadedly connected to the threaded surface of the reciprocating lead screw 43. A vibration ring 45 is fixedly connected to the outer wall of the threaded slip ring 44. A limiting groove 46 is provided on the side of the vibration ring 45. A limiting slide post 47 is fixedly connected to the side of the filter screen 2 near the drive motor 42. The drive motor 42 is electrically connected to an external controller.

[0028] The water pump assembly 3 includes an inlet frame 31, which is fixedly connected to the side of the drain pipe body 1. A dual-output motor 32 is fixedly connected to the top of the inlet frame 31. Both output shafts of the dual-output motor 32 are fixedly connected to water collection blades 33. This is existing technology and will not be further elaborated.

[0029] The side of the impact ring 48 closest to the motor bracket 41 is located on the motion trajectory of the side of the impact ring 45 away from the motor bracket 41. The inner wall of the groove of the limiting groove 46 is in contact with the outer wall of the limiting slide 47. The necessary contact ensures the stable operation of the device.

[0030] According to the above structure, when drainage operation begins, the operator turns on the dual-output motor 32 through the external controller. The two output shafts of the dual-output motor 32 rotate, driving the two water-collecting blades 33 to rotate in opposite directions, thereby increasing the water flow velocity and achieving reliable drainage operation. Before the drainage operation begins, the operator turns on the drive motor 42 through the external controller. The output shaft of the drive motor 42 rotates, driving the reciprocating screw 43 to rotate. The rotation of the reciprocating screw 43 drives the threaded slip ring 44 to reciprocate, causing the shock ring 45 to reciprocate under the restriction of the limiting groove 46 and the limiting slide 47. This reciprocating motion causes the shock ring 45 to repeatedly impact the impact ring 48, transmitting the impact force to the filter screen 2 through the impact ring 48. This causes the coal impurities attached to the filter screen 2 to be shaken off, preventing the filter screen 2 from being clogged by impurities during the drainage operation and ensuring the normal output of the drainage system.

[0031] As shown in Figures 1-5, a crushing device 5 is provided on the side of the filter screen 2 away from the reciprocating screw 43. The crushing device 5 includes an inner conical friction ring 51. The side of the inner conical friction ring 51 is fixedly connected to the side of the filter screen 2 away from the reciprocating screw 43. A linkage shaft 52 is fixedly connected to the side of the reciprocating screw 43 close to the filter screen 2. A crushing wheel 53 is rotatably connected to the outer wall of the linkage shaft 52. A conical friction wheel 54 is fixedly connected to the side of the crushing wheel 53 away from the linkage shaft 52. A scraper plate 55 is fixedly connected to the outer wall of the linkage shaft 52. The contact surface between the scraper plate 55 and the filter screen 2 is a smooth surface.

[0032] The outer wall of the conical friction wheel 54 and the inner wall of the inner conical friction ring 51 are both rough surfaces. The outer wall of the conical friction wheel 54 is in contact with the inner wall of the inner conical friction ring 51. The rough surfaces can increase the friction between the components.

[0033] The outer wall of the crushing wheel 53 contacts the side of the filter screen 2 near the inner cone friction ring 51, and the side of the scraper plate 55 near the filter screen 2 contacts the side of the filter screen 2 near the scraper plate 55. The necessary contact ensures the linkage between the components.

[0034] According to the above structure, the reciprocating screw 43 rotates, driving the linkage shaft 52 to rotate. The rotation of the linkage shaft 52 drives the crushing wheel 53 and the scraper plate 55 to rotate around the linkage shaft 52. The rotation of the crushing wheel 53 around the linkage shaft 52 drives the conical friction wheel 54 to rotate around the linkage shaft 52. When the conical friction wheel 54 rotates around the linkage shaft 52, it rotates again around its own center point under the frictional force of the inner conical friction ring 51. This causes the crushing wheel 53 to rotate around its own center point, thus crushing the large hard impurities blocked by the filter screen 2, further ensuring the normal operation of the drainage system.

[0035] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A drainage device for preventing blockage in coal mines, comprising a drainage pipe body (1), wherein a filter screen (2) is fixedly connected to the inner wall of the drainage pipe body (1), and a water pump assembly (3) is provided on the side of the drainage pipe body (1), characterized in that: A knocking device (4) is provided on the inner wall of the drain pipe body (1). The knocking device (4) includes a motor bracket (41). The motor bracket (41) is fixedly connected to the inner wall of the drain pipe body (1). A driving component is provided on the side of the motor bracket (41) away from the filter screen (2). A shocking ring (45) is fixedly connected to the driving end of the driving component. A receiving ring (48) is fixedly connected to the side of the filter screen (2) near the motor bracket (41).

2. The anti-clogging drainage device for coal mine water control according to claim 1, characterized in that: The drive assembly includes a drive motor (42), the side of which is fixedly connected to the motor bracket (41) on the side away from the filter screen (2). The output shaft of the drive motor (42) is fixedly connected to a reciprocating lead screw (43). A threaded slip ring (44) is threadedly connected to the threaded surface of the reciprocating lead screw (43). A vibration ring (45) is fixedly connected to the outer wall of the threaded slip ring (44). A limiting groove (46) is provided on the side of the vibration ring (45). A limiting slide post (47) is fixedly connected to the side of the filter screen (2) near the drive motor (42). The threaded slip ring (44) is provided at the drive end of the drive assembly.

3. A drainage device for preventing blockages in coal mines according to claim 1, characterized in that: The pump assembly (3) includes an inlet frame (31), which is fixedly connected to one end of the drain pipe body (1) near the knocking device (4). A dual-output motor (32) is fixedly connected to the top of the inlet frame (31), and the two output shafts of the dual-output motor (32) are fixedly connected to water collection blades (33).

4. A drainage device for preventing blockages in coal mines according to claim 2, characterized in that: The side of the impact ring (48) near the motor bracket (41) is on the motion trajectory of the side of the shock ring (45) away from the motor bracket (41), and the inner wall of the groove of the limiting groove (46) is in contact with the outer wall of the limiting slide (47).

5. A drainage device for preventing blockages in coal mines according to claim 2, characterized in that: A crushing device (5) is provided on the side of the filter screen (2) away from the reciprocating screw (43). The crushing device (5) includes an inner conical friction ring (51). The side of the inner conical friction ring (51) is fixedly connected to the side of the filter screen (2) away from the reciprocating screw (43). A linkage shaft (52) is fixedly connected to the side of the reciprocating screw (43) close to the filter screen (2). A crushing wheel (53) is rotatably connected to the outer wall of the linkage shaft (52). A conical friction wheel (54) is fixedly connected to the side of the crushing wheel (53) away from the linkage shaft (52). A scraper plate (55) is fixedly connected to the outer wall of the linkage shaft (52).

6. A drainage device for preventing blockages in coal mines according to claim 5, characterized in that: The outer wall of the conical friction wheel (54) and the inner wall of the inner conical friction ring (51) are both rough surfaces, and the outer wall of the conical friction wheel (54) is in contact with the inner wall of the inner conical friction ring (51).

7. A drainage device for preventing blockages in coal mines according to claim 5, characterized in that: The outer wall of the crushing wheel (53) is in contact with the side of the filter screen (2) near the inner cone friction ring (51), and the side of the scraper plate (55) near the filter screen (2) is in contact with the side of the filter screen (2) near the scraper plate (55).

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