Coal mine mining drainage anti-blocking device

Abstract

The utility model provides a coal mine mining drainage anti-blocking device which comprises a machine frame, a slag discharging opening is formed in the upper portion of one side face of the machine frame, an opening of the slag discharging opening is arranged downwards, a bottom plate is arranged under the slag discharging opening, and the end, close to the machine frame, of the bottom plate inclines upwards to form an inclined part. The end, away from the rack, of the bottom plate is horizontally arranged to form a horizontal part, two symmetrically-arranged side baffles are installed on the edge of the upper surface of the bottom plate and connected with the rack through connecting pieces, and a plurality of plate pieces making contact with one another are evenly arranged on the upper surface of the horizontal part of the bottom plate. The lower surface of the plate sheet is provided with two inserting heads, the area, covered by the plate sheet, of the horizontal part of the bottom plate is provided with inserting holes matched with the inserting heads, and the inserting heads are inserted into the inserting holes. And the ground below the slag discharge port does not need to be maintained.

Description

Technical Field

[0001] This utility model is a coal mine drainage and anti-clogging device, belonging to the field of mechanical equipment. Background Technology

[0002] Coal mine drainage and anti-clogging measures are crucial for ensuring safe mine production. The aim is to optimize drainage system design to prevent clogging of drainage channels by impurities such as silt and coal dust, ensuring stable operation of the drainage system. Installing a bar screen at the entrance of the drainage roadway for coarse filtration is one of the key measures for preventing blockages in coal mine drainage systems. The bar screen has a discharge port on one side of its frame. Debris is intercepted by the equipment and discharged from the discharge port, falling directly to the ground below. However, with continuous slag removal operations, a large amount of coal dust, rocks, and other debris quickly accumulates below the discharge port, requiring regular manual removal using shovels. During this process, frequent friction between the shovel blades and the ground causes the concrete layer to gradually wear down and thin, sometimes even exposing the underlying gravel. Ground repairs require breaking up the worn layer and re-pouring concrete, but the cement requires at least 48 hours to cure. During this time, the area below the discharge port is unusable, forcing the bar screen to stop or temporarily change the discharge path, leading to a decrease in the drainage system's processing efficiency. Furthermore, each drainage interruption caused by maintenance increases the risk of water accumulation in the roadway, indirectly affecting mining safety. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a coal mine drainage anti-clogging device to solve the problems mentioned in the background technology. This utility model prevents the ground below the slag discharge port from being damaged due to repeated friction with the iron shovel, and eliminates the need to repair the ground below the slag discharge port.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a coal mine drainage and anti-clogging device, comprising a frame, a slag discharge port installed at the upper part of one side of the frame, the slag discharge port opening downwards, a base plate provided directly below the slag discharge port, the end of the base plate near the frame inclined upwards to form an inclined section, the end of the base plate away from the frame arranged horizontally to form a horizontal section, two symmetrically arranged side baffles installed at the edge of the upper surface of the base plate, the side baffles being connected to the frame via connectors, a plurality of mutually contacting plates evenly arranged on the upper surface of the horizontal section of the base plate, two plug connectors installed on the lower surface of the plates, and plug holes for matching the plug connectors being opened in the area of ​​the horizontal section of the base plate covered by the plates, the plug connectors being inserted into the plug holes.

[0005] Furthermore, the connecting component includes a connecting plate, and the side baffle is fixedly connected to the connecting plate at one end near the frame. A positioning plate is provided on one side of the connecting plate and arranged parallel to the connecting plate. The positioning plate is fixedly connected to the frame. Circular holes are provided on both the side of the positioning plate facing the connecting plate and the side of the connecting plate facing the positioning plate. A screw is inserted into the channel formed by the two circular holes. A nut is threaded to one end of the screw. There is a gap between the positioning plate and the connecting plate.

[0006] Furthermore, multiple vertically arranged grid bars are evenly installed in the lower part of the frame, and a drive shaft is rotatably installed in the upper part of the frame. One end of the drive shaft extends to the outside of the frame, and a geared motor is installed on one side of the frame. The output shaft of the geared motor is connected to the end of the drive shaft that extends to the outside of the frame. Both ends of the drive shaft are fitted with chain discs connected to the drive shaft. Two arc-shaped guide rails are installed in the lower part of the frame, and an annular toothed rake chain is slidably installed in the arc-shaped guide rails. The annular toothed rake chain is fitted on the chain discs, and multiple toothed rakes that cooperate with the grid bars are installed on the annular toothed rake chain.

[0007] Furthermore, a horizontal shaft is provided on the lower side of the slag discharge port. The horizontal shaft is connected and fixed to the frame. Support legs are installed at both ends of the horizontal shaft. Positioning seats are installed at the lower ends of the support legs. Two symmetrically arranged foot holes are opened on the upper surface of the positioning seats.

[0008] Furthermore, the lower surface of the plate is recessed upward to form two blind holes, and the upper end of the connector is fixed in the blind holes.

[0009] Furthermore, one end of the plate is machined with an arc-shaped surface, which fits into the curved portion formed by the inclined portion and the horizontal portion of the base plate.

[0010] The beneficial effects of this utility model are:

[0011] 1. The inclined section of the base plate allows debris to automatically slide down to the horizontal section, reducing manual shoveling distance. The side baffles limit the debris's scattering range, preventing it from accumulating at the bottom of the frame and affecting equipment operation. When using a shovel to transfer debris from the side baffles, the inclined section of the base plate, and the horizontal section of the base plate, the shovel does not directly contact the ground under the protection of the base plate. This prevents damage to the ground below the slag discharge port due to repeated friction with the shovel, eliminating the need for maintenance of the ground below the slag discharge port.

[0012] 2. Insert the connectors on the plates into the corresponding connector holes. Multiple plates form a barrier and are laid on the horizontal upper surface of the base plate. When a plate is damaged during contact with the shovel, only the worn plate needs to be replaced, which reduces maintenance costs, improves maintenance efficiency, and avoids delays in the normal use of the bar screen cleaning machine due to maintenance. Attached Figure Description

[0013] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of the structure of a coal mine water drainage and anti-clogging device according to the present invention;

[0015] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0016] Figure 3 This is another perspective view of the anti-clogging device for water drainage in coal mines according to the present invention;

[0017] Figure 4 This is a schematic diagram of the assembly of the side baffle, plate and bottom plate in a coal mine drainage and anti-clogging device of this utility model;

[0018] Figure 5 This is a perspective view of the toothed rake in a coal mine drainage and anti-clogging device according to the present invention.

[0019] In the diagram: 1-Frame, 2-Gear motor, 3-Plate, 4-Side baffle, 5-Base plate, 6-Outrigger, 7-Positioning seat, 8-Grid bar, 9-Toothed rake, 10-Arc guide rail, 11-Annular toothed rake chain, 12-Chain disc, 13-Drive shaft, 14-Horizontal shaft, 15-Screw, 16-Nut, 17-Positioning plate, 18-Connecting plate, 19-Slag discharge port, 20-Plug-in connector, 21-Plug-in hole. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Please see Figure 1 , Figure 2 and Figure 5This utility model provides a technical solution: a coal mine drainage and anti-clogging device, including a frame 1. A slag discharge port 19 is installed at the upper part of one side of the frame 1, with the opening of the slag discharge port 19 facing downward. Multiple vertically arranged grid bars 8 are evenly installed at the lower part of the frame 1, forming a barrier to intercept debris. A drive shaft 13 is rotatably installed at the upper part of the frame 1, with one end of the drive shaft 13 extending to the outside of the frame 1. A reduction motor 2 is installed on one side of the frame 1, and the output shaft of the reduction motor 2 is connected to the end of the drive shaft 13 extending to the outside of the frame 1. Both ends of the drive shaft 13 are fitted with transmission... The chain disk 12 connected to the shaft 13 has two arc-shaped guide rails 10 installed at the lower part of the frame 1. A ring-shaped toothed rake chain 11 is slidably installed in the arc-shaped guide rails 10. The ring-shaped toothed rake chain 11 is sleeved on the chain disk 12. Multiple toothed rakes 9 that cooperate with the grid bars 8 are installed on the ring-shaped toothed rake chain 11. When the reduction motor 2 is working, it drives the chain disk 12 to rotate through the transmission shaft 13. The chain disk 12 drives the toothed rakes 9 to move through the ring-shaped toothed rake chain 11. The toothed rakes 9 lift the debris on the multiple grid bars 8 forming a barrier to intercept debris to the upper part of the frame 1. Then the debris is discharged from the slag discharge port 19 to prevent the debris from entering the drainage tunnel at will with water.

[0022] See Figure 1 , Figure 3 and Figure 4 A base plate 5 is located directly below the slag discharge port 19. The end of the base plate 5 closest to the frame 1 slopes upward to form an inclined section, while the end of the base plate 5 furthest from the frame 1 is horizontal to form a horizontal section. Two symmetrically arranged side baffles 4 are installed at the edge of the upper surface of the base plate 5. The inclined section of the base plate 5 allows debris to automatically slide down the slope to the horizontal section of the base plate 5, reducing the distance for manual shoveling. The side baffles 4 limit the range of debris scattering, preventing it from accumulating at the bottom of the frame 1 and affecting equipment operation. When using a shovel to transfer debris from the structure formed by the side baffles 4, the inclined section of the base plate 5, and the horizontal section of the base plate 5, the shovel does not directly contact the ground under the protection of the base plate 5, preventing damage to the ground below the slag discharge port 19 due to repeated friction with the shovel, thus eliminating the need for maintenance of the ground below the slag discharge port 19.

[0023] See Figure 1 , Figure 3 and Figure 4Multiple contacting plates 3 are evenly arranged on the upper surface of the horizontal part of the base plate 5. Two plugs 20 are installed on the lower surface of the plates 3. The lower surface of the plates 3 is concave upward to form two blind holes, so that the upper end of the plugs 20 is fixed in the blind holes, improving the stability of the connection between the plugs 20 and the plates 3. One end of the plates 3 is machined with an arc surface, which fits into the curved part formed by the inclined part and the horizontal part of the base plate 5. The arc surface design avoids the end of the plates 3 near the inclined part of the base plate 5 from protruding and affecting the sliding of debris. The area of ​​the horizontal part of the base plate 5 covered by the plates 3 has plug holes 21 that match the plugs 20, so that the plugs 20 on the plates 3 are inserted into the corresponding plug holes 21. Multiple plates 3 form a barrier on the upper surface of the horizontal part of the base plate 5. When the plates 3 are damaged in contact with the shovel, only the worn plates 3 need to be replaced, reducing maintenance costs, improving maintenance efficiency, and avoiding delays in the normal use of the bar screen due to maintenance.

[0024] See Figure 1 and Figure 2 A connecting plate 18 is fixed to one end of the side baffle 4 near the frame 1. A positioning plate 17 is provided on one side of the connecting plate 18, which is parallel to the connecting plate 18. The positioning plate 17 is fixed to the frame 1. Circular holes are provided on the side of the positioning plate 17 facing the connecting plate 18 and the side of the connecting plate 18 facing the positioning plate 17. A screw 15 is inserted into the channel formed by the two circular holes. A nut 16 is threaded to one end of the screw 15. Since there is a gap between the positioning plate 17 and the connecting plate 18, when the screw 15 and the nut 16 cannot be properly separated due to rust, the screw 15 can be cut off using this gap, which facilitates the disassembly and assembly of the base plate 5 and the frame 1.

[0025] See Figure 1 and Figure 3 A horizontal shaft 14 is provided on the lower side of the slag discharge port 19. The horizontal shaft 14 is connected and fixed to the frame 1. Both ends of the horizontal shaft 14 are equipped with support legs 6. The lower end of the support legs 6 is equipped with a positioning seat 7. Two symmetrically arranged foot holes are opened on the upper surface of the positioning seat 7. The positioning seat 7 is installed on the ground with bolts. At this time, the structure formed by the support legs 6 and the horizontal shaft 14 supports the frame 1, which facilitates the restriction of the position of the frame 1.

[0026] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A coal mine drainage anti-clogging device, comprising a frame (1), characterized in that: A slag discharge port (19) is installed on the upper part of one side of the frame (1). The slag discharge port (19) is arranged with its opening facing downward. A base plate (5) is provided directly below the slag discharge port (19). The end of the base plate (5) near the frame (1) is inclined upward to form an inclined part. The end of the base plate (5) away from the frame (1) is arranged horizontally to form a horizontal part. Two symmetrically arranged side baffles (4) are installed at the edge of the upper surface of the base plate (5). The side baffles (4) are connected to the frame (1) through connectors. A plurality of mutually contacting plates (3) are evenly arranged on the upper surface of the horizontal part of the base plate (5). Two plugs (20) are installed on the lower surface of the plates (3). The area of ​​the horizontal part of the base plate (5) covered by the plates (3) has a plug hole (21) that matches the plug (20). The plug (20) is inserted into the plug hole (21).

2. The coal mine drainage and anti-clogging device according to claim 1, characterized in that: The connector includes a connecting plate (18). The side baffle (4) is fixedly connected to the connecting plate (1) at one end near the frame (1). A positioning plate (17) is provided on one side of the connecting plate (18) and arranged parallel to the connecting plate (18). The positioning plate (17) is fixedly connected to the frame (1). The side of the positioning plate (17) facing the connecting plate (18) and the side of the connecting plate (18) facing the positioning plate (17) are both provided with round holes. A screw (15) is inserted into the channel formed by the two round holes. A nut (16) is threaded to one end of the screw (15). There is a gap between the positioning plate (17) and the connecting plate (18).

3. The coal mine drainage and anti-clogging device according to claim 1, characterized in that: Multiple vertically arranged grid bars (8) are evenly installed in the lower part of the frame (1). A drive shaft (13) is rotatably installed in the upper part of the frame (1). One end of the drive shaft (13) extends to the outside of the frame (1). A geared motor (2) is installed on one side of the frame (1). The output shaft of the geared motor (2) is connected to the end of the drive shaft (13) that extends to the outside of the frame (1). Both ends of the drive shaft (13) are fitted with chain discs (12) connected to the drive shaft (13). Two arc-shaped guide rails (10) are installed in the lower part of the frame (1). A ring toothed rake chain (11) is slidably installed in the arc-shaped guide rails (10). The ring toothed rake chain (11) is fitted on the chain discs (12). Multiple toothed rakes (9) that cooperate with the grid bars (8) are installed on the ring toothed rake chain (11).

4. The coal mine drainage and anti-clogging device according to claim 1, characterized in that: A horizontal shaft (14) is provided on the lower side of the slag discharge port (19). The horizontal shaft (14) is connected and fixed to the frame (1). Both ends of the horizontal shaft (14) are equipped with support legs (6). A positioning seat (7) is installed at the lower end of the support leg (6). Two symmetrically arranged foot holes are opened on the upper surface of the positioning seat (7).

5. A coal mine drainage and anti-clogging device according to claim 1, characterized in that: The lower surface of the plate (3) is recessed upward to form two blind holes, and the upper end of the connector (20) is fixed in the blind holes.

6. The coal mine drainage and anti-clogging device according to claim 1, characterized in that: One end of the plate (3) is processed with an arc-shaped surface, which is in contact with the curved part formed by the inclined part of the base plate (5) and the horizontal part of the base plate (5).

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