Mine large-dip-angle working face corner plugging and spraying equipment

Abstract

The utility model discloses mine large-dip-angle working face corner plugging and spraying equipment which comprises a machine frame, the machine frame is provided with a pump head assembly and two sets of slurry sucking and discharging devices, the slurry sucking and discharging devices are both provided with slurry discharging pipes, the slurry discharging pipes are provided with slurry discharging heads, and the machine frame is provided with a moving assembly driving the slurry discharging heads to move directionally. The moving assembly comprises a pneumatic motor, a first positioning block, a rotating rod, a second positioning block and a vertical rod, the rack is fixedly provided with a cross rod, the cross rod is in sliding connection with the vertical rod, the cross rod is provided with a limiting assembly for limiting the vertical rod, and the second positioning block is connected with the slurry discharging head. The slurry discharging head sprays the fire preventing and extinguishing materials along the square perimeter track through the moving assembly, the slurry discharging head does not need to be manually held by hand for spraying, plugging spraying can be rapidly conducted on the mine large-dip-angle working face corner, the spraying efficiency of the fire preventing and extinguishing materials is improved, and plugging of the large-dip-angle working face corner can be rapidly conducted.

Description

Technical Field

[0001] The utility model relates to the field of mine safety, in particular to a corner plugging spraying device for a mine working surface with a large dip angle. Background Art

[0002] During the mining process of coal mines, after the high-angle coal mining face is pushed and mined, the roof of the two corners of the tunnels may collapse, resulting in a large area of ​​empty roof in the corners of the two tunnels of the working face, forming an air leakage channel in the goaf. If the air leakage space in the goaf of the two tunnels is large, it is easy to bring the gas in the goaf to the upper corner, and at the same time increase the width of the oxidation zone, which will cause the residual coal in the goaf to spontaneously combust, and it needs to be quickly sealed.

[0003] In the related technology, the air leakage space in the goaf is traditionally sealed with air bags or bagged sand. With the rapid development of the coal mining industry, mining pneumatic grouting equipment has gradually begun to be used to spray inorganic self-foaming fire-proof materials. Inorganic self-foaming fire-proof materials have good fluidity and diffusivity in the early stage, which can cover and fill the coal body and cracks. In the later stage, the gel body has good adhesion and plays a good oxygen isolation effect. The mining pneumatic grouting equipment uses the cylinder as the driving source, combines the double plunger of the pump head assembly to reciprocate, and cooperates with the suction and discharge valve group to complete the suction and discharge work.

[0004] With regard to the above-mentioned related technologies, when the mining pneumatic grouting equipment is actually used in the mine, the slurry discharge head needs to be manually held for spraying. Due to the complex terrain of the steep-angle working face, manually holding the slurry discharge head for spraying is time-consuming and labor-intensive, and the spraying efficiency is low. Utility Model Content

[0005] In order to improve the spraying efficiency of inorganic self-foaming fire extinguishing materials and quickly achieve the blocking of corners of working surfaces with large inclination angles, the present application provides a spraying device for blocking corners of working surfaces with large inclination angles in mines.

[0006] The present application provides a corner plugging spraying device for a large-angle working surface in a mine, which adopts the following technical solution:

[0007] A kind of corner plugging spraying equipment for a high-angle working face in a mine, comprising a frame, the frame is provided with a pump head assembly and two sets of slurry suction and discharge devices, the slurry suction and discharge devices are all provided with a slurry discharge pipe, the slurry discharge pipe is provided with a slurry discharge head, the frame is provided with a moving component, the moving component comprises an air motor, a first positioning block, a rotating rod, a second positioning block and a vertical rod, the air motor is fixedly mounted on the frame and the output end is fixedly connected to the first positioning block, the rotating rod passes through the first positioning block and is slidably connected to the first positioning block, the vertical rod passes through the second positioning block and is slidably connected to the second positioning block, the second positioning block is rotatably connected to one end of the rotating rod, the frame is fixedly provided with a cross bar, the cross bar is slidably connected to the vertical rod, the cross bar is provided with a limiting component for limiting the vertical rod, and the second positioning block is connected to the slurry discharge head.

[0008] Optionally, an annular piece is fixedly provided on the rotating rod near the second positioning block, and a spring is fixedly provided between the annular piece and the first positioning block.

[0009] Optionally, the second positioning block is fixedly connected to a receiving plate, the receiving plate is provided with a through hole adapted to the pulp discharge head, the receiving plate is provided with a locking ring adapted to the pulp discharge head, the locking ring comprises an upper half ring and a lower half ring, the lower half ring and the receiving plate are fixedly connected, one end of the upper half ring is rotatably connected to the lower half ring, and the other end of the upper half ring is connected to the lower half ring by bolts.

[0010] Optionally, the limit stop assembly includes two limit stops parallel to each other, both of which are fixedly connected to the cross bar, and the two limit stops are respectively located on both sides of the vertical bar.

[0011] Optionally, the frame is provided with a strip plate located directly below the vertical rod, a trapezoidal block is fixedly connected to the lower end of the vertical rod, and the strip plate is provided with a trapezoidal groove slidably connected to the trapezoidal block.

[0012] Optionally, a plurality of universal wheels are provided at the bottom of the frame.

[0013] Optionally, a cleaning scraper is movably connected to the side wall of the second positioning block.

[0014] Optionally, the slurry suction and discharge device is further provided with a slurry suction pipe, and one end of the slurry suction pipe away from the pump head assembly is connected to a suction filter.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. The slurry discharge head is driven to move by the moving component, and the slurry discharge head sprays the inorganic self-foaming fire-proof extinguishing material along the square perimeter trajectory. There is no need to manually hold the slurry discharge head for spraying, and the corners of the mine working surface with a large dip angle can be quickly blocked by spraying, which improves the spraying efficiency of the inorganic self-foaming fire-proof extinguishing material and can quickly block the corners of the working surface with a large dip angle;

[0017] 2. After the pulp discharge head is moved to a certain position by the moving assembly, the pneumatic motor is stopped, the first positioning block stops rotating, the pulp discharge head position remains unchanged, and then the frame can be moved by the universal wheel to spray the inorganic self-foaming fire extinguishing material on other positions, thereby increasing the spraying range of the equipment and ensuring the blocking effect;

[0018] 3. Pass the slurry discharge head and the slurry discharge pipe through the through hole from bottom to top, then remove the bolts, install the slurry discharge head into the upper half ring, and then lock the upper half ring and the lower half ring with bolts to position the slurry discharge head, so as to improve the stability of the subsequent slurry discharge head during the spraying process and ensure the spraying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1The present invention is a schematic diagram of the overall structure of a corner plugging spraying equipment for a large-angle working face in a mine.

[0020] Figure 2 It is a schematic diagram of the connection structure between the rack and the mobile component.

[0021] Figure 3 yes Figure 2 Enlarged schematic diagram of part A.

[0022] Explanation of the reference numerals in the accompanying drawings: 1. frame; 2. pump head assembly; 3. slurry suction and discharge device; 31. slurry discharge pipe; 311. slurry discharge head; 32. slurry suction pipe; 321. suction filter; 4. moving assembly; 41. pneumatic motor; 42. first positioning block; 43. rotating rod; 431. annular plate; 44. second positioning block; 441. cleaning scraper; 45. vertical rod; 451. trapezoidal block; 5. spring; 6. receiving plate; 61. through hole; 621. upper half ring; 622. lower half ring; 11. cross bar; 111. limit stop block; 12. strip plate; 121. trapezoidal groove; 13. universal wheel. DETAILED DESCRIPTION

[0023] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0024] The embodiment of the present application discloses a corner plugging spraying device for a high-angle working surface in a mine.

[0025] Reference Figure 1 A spraying device for sealing corners of a large-angle working face in a mine, comprising a frame 1, a pump head assembly 2 and two sets of slurry suction and discharge devices 3, the two sets of slurry suction and discharge devices 3 are respectively located at both ends of the pump head assembly 2 along the length direction. The slurry suction and discharge devices 3 are each provided with a slurry suction pipe 32 and a slurry discharge pipe 31, and a suction filter 321 is connected to one end of the slurry suction pipe 32 away from the pump head assembly 2, and the suction filter 321 filters the incoming slurry to ensure the performance and effect of the subsequent spraying of the inorganic self-foaming fire extinguishing material.

[0026] Reference Figure 2 and Figure 3 A slurry discharge head 311 is provided at one end of the slurry discharge pipe 31 away from the pump head assembly 2. A moving assembly 4 for driving the slurry discharge head 311 to move in a directional manner is installed on both sides of the frame 1. The moving assembly 4 includes an air motor 41, a first positioning block 42, a rotating rod 43, a second positioning block 44 and a vertical rod 45. The second positioning block 44 is fixedly connected to a receiving plate 6, which is located on the side of the second positioning block 44 away from the rotating rod 43. The receiving plate 6 is provided with a through hole 61 adapted to the slurry discharge head 311. The diameter of the through hole 61 is larger than that of the slurry discharge head 311. In actual use, the operator passes the slurry discharge head 311 and the slurry discharge pipe 31 through the through hole 61 from bottom to top.

[0027] Reference Figure 2 and Figure 3 The receiving plate 6 is provided with a locking ring adapted to the slurry discharge head 311, the locking ring includes an upper half ring 621 and a lower half ring 622, the lower half ring 622 is fixedly connected to the receiving plate 6, one end of the upper half ring 621 is rotatably connected to the lower half ring 622, and the other end of the upper half ring 621 is connected to the lower half ring 622 by bolts. The operator then removes the bolts, installs the slurry discharge head 311 into the upper half ring 621, and then locks the upper half ring 621 and the lower half ring 622 by bolts to position the slurry discharge head 311, so as to improve the stability of the subsequent slurry discharge head 311 during the spraying process and ensure the spraying effect.

[0028] Reference Figure 2 and Figure 3 The pneumatic motor 41 of the moving assembly 4 is fixedly connected to the frame 1, and the output end of the pneumatic motor 41 is fixedly connected to the first positioning block 42, and the rotating rod 43 passes through the first positioning block 42 and is slidably connected to the first positioning block 42. When the operator starts the pneumatic motor 41, the output shaft of the pneumatic motor 41 rotates to drive the first positioning block 42 to rotate, and then the first positioning block 42 drives the rotating rod 43 to rotate.

[0029] Reference Figure 2 and Figure 3 , the vertical rod 45 passes through the second positioning block 44 and is slidably connected to the second positioning block 44, the second positioning block 44 is rotatably connected to one end of the rotating rod 43, and the frame 1 is fixed with a cross bar 11, the cross bar 11 passes through the upper end of the vertical rod 45 and is slidably connected to the vertical rod 45. Under the limiting action of the cross bar 11, when the vertical rod 45 rotates with the first positioning block 42, the rotating rod 43 slides relative to the first positioning block 42 while rotating with the first positioning block 42. The rotating rod 43 is fixed with an annular piece 431 near the second positioning block 44, and a spring 5 is installed between the annular piece 431 and the first positioning block 42, and the two ends of the spring 5 are fixedly connected to the annular piece 431 and the first positioning block 42 respectively. The spring 5 limits the relative position of the rotating rod 43 and the first positioning block 42, which is conducive to improving the stability of the rotating rod 43 when moving.

[0030] Reference Figure 2 and Figure 3The crossbar 11 is provided with a limit assembly, which includes two limit blocks 111 parallel to each other. The limit blocks 111 are fixedly connected to the crossbar 11. The two limit blocks 111 are respectively located on both sides of the vertical bar 45. The limit blocks 111 limit the moving area of ​​the vertical bar 45, which is conducive to ensuring the spraying effect of the blocked area. The frame 1 is provided with a strip plate 12 located directly below the vertical bar 45. The lower end of the vertical bar 45 is fixedly connected with a trapezoidal block 451. The strip plate 12 is provided with a trapezoidal groove 121. The trapezoidal block 451 slides in the trapezoidal groove 121. The trapezoidal groove 121 limits the vertical bar 45 to prevent the lower end of the vertical bar 45 from swinging, which is conducive to improving the spraying efficiency.

[0031] Reference Figure 2 and Figure 3 The rotating rod 43 drives the second positioning block 44 and the vertical rod 45 to move, and the distance between the second positioning block 44 and the first positioning block 42 is cyclically approached and moved away, and the second positioning block 44 moves along the square perimeter trajectory. Then the second positioning block 44 drives the slurry discharge head 311 to move, and the slurry discharge head 311 sprays the fire-proof extinguishing material along the square perimeter trajectory. There is no need to manually hold the slurry discharge head 311 for spraying, and the corners of the mine working surface with a large dip angle can be quickly blocked by spraying, which improves the spraying efficiency of the fire-proof extinguishing material and can quickly block the corners of the working surface with a large dip angle.

[0032] Reference Figure 2 and Figure 3 After long-term use, the end of the pulp discharge head 311 is prone to adhesion of residual materials and impurities. A cleaning scraper 441 is installed on the side wall of the second positioning block 44. The cleaning scraper 441 can be removed from the second positioning block 44, and then the pulp discharge head 311 is regularly scraped and cleaned to ensure the subsequent use effect of the pulp discharge head 311.

[0033] Reference Figure 1 and Figure 2 A plurality of universal wheels 13 are provided at the bottom of the frame 1, and preferably four universal wheels 13 are provided, which are respectively installed at the four end corners of the frame 1. When the pulp discharge head 311 is moved to a certain position by the moving component 4, the pneumatic motor 41 is stopped, the first positioning block 42 stops rotating, and the position of the pulp discharge head 311 remains stationary, and then the frame 1 can be moved by the universal wheels 13, so as to realize spraying of inorganic self-foaming fire extinguishing material on other positions, thereby increasing the spraying range of the equipment and ensuring the blocking effect.

[0034] The implementation principle of the corner plugging spraying equipment of the high-angle working face of a mine in the embodiment of the present application is as follows: the operator passes the slurry discharge head 311 and the slurry discharge pipe 31 from bottom to top through the through hole 61, and installs the slurry discharge head 311 into the upper half ring 621. The pneumatic motor 41 is started, and the pneumatic motor 41 drives the first positioning block 42 to rotate, and then the first positioning block 42 drives the rotating rod 43 to rotate. Under the limiting action of the cross bar 11, the vertical rod 45 rotates with the first positioning block 42 during the rotation process, and the rotating rod 43 slides relative to the first positioning block 42 while rotating with the first positioning block 42. The limit block 111 limits the moving area of ​​the vertical rod 45, and the rotating rod 43 drives the second positioning block 44 to move with the vertical rod 45, and the second positioning block 44 moves along the square perimeter trajectory. Then the second positioning block 44 drives the slurry discharge head 311 to move, and the slurry discharge head 311 sprays the inorganic self-foaming fire extinguishing material along the square perimeter trajectory. There is no need to manually hold the slurry discharge head 311 for spraying, and the corners of the mine working surface with a large inclination angle can be quickly sealed and sprayed, which improves the spraying efficiency of the inorganic self-foaming fire extinguishing material and can quickly seal the corners of the working surface with a large inclination angle.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A corner plugging spraying device for a high-angle working face in a mine, comprising a frame (1), the frame (1) being provided with a pump head assembly (2) and two sets of slurry suction and discharge devices (3), the slurry suction and discharge devices (3) being provided with a slurry discharge pipe (31), the slurry discharge pipe (31) being provided with a slurry discharge head (311), characterized in that: The frame (1) is provided with a moving assembly (4), which comprises an air motor (41), a first positioning block (42), a rotating rod (43), a second positioning block (44) and a vertical rod (45). The air motor (41) is fixedly mounted on the frame (1) and an output end is fixedly connected to the first positioning block (42). The rotating rod (43) passes through the first positioning block (42) and is slidably connected to the first positioning block (42). The vertical rod (45) is slidably connected to the second positioning block (44). The second positioning block (44) is rotatably connected to one end of the rotating rod (43). The frame (1) is fixedly provided with a cross bar (11). The cross bar (11) is slidably connected to the vertical rod (45). The cross bar (11) is provided with a limiting assembly for limiting the vertical rod (45). The second positioning block (44) is connected to the pulp discharge head (311).

2. The corner plugging spraying equipment for a mine with a large dip angle working surface according to claim 1 is characterized by: An annular piece (431) is fixedly arranged on the rotating rod (43) near the second positioning block (44), and a spring (5) is fixedly arranged between the annular piece (431) and the first positioning block (42).

3. The corner plugging spraying equipment for a mine with a large dip angle working surface according to claim 1 is characterized by: The second positioning block (44) is fixedly connected to a receiving plate (6), the receiving plate (6) is provided with a through hole (61) adapted to the pulp discharge head (311), the receiving plate (6) is provided with a locking ring adapted to the pulp discharge head (311), the locking ring comprises an upper half ring (621) and a lower half ring (622), the lower half ring (622) is fixedly connected to the receiving plate (6), one end of the upper half ring (621) is rotatably connected to the lower half ring (622), and the other end of the upper half ring (621) is connected to the lower half ring (622) by bolts.

4. The corner plugging spraying equipment for a mine with a large dip angle working surface according to claim 1 is characterized by: The limit stop assembly comprises two limit stop blocks (111) which are parallel to each other. The limit stop blocks (111) are fixedly connected to the cross bar (11). The two limit stop blocks (111) are respectively located on both sides of the vertical bar (45).

5. The corner plugging spraying equipment for a mine with a large dip angle working surface according to claim 4 is characterized by: The frame (1) is provided with a strip plate (12) located directly below the vertical rod (45); a trapezoidal block (451) is fixedly connected to the lower end of the vertical rod (45); and the strip plate (12) is provided with a trapezoidal groove (121) slidably connected to the trapezoidal block (451).

6. The corner plugging spraying equipment for a mine with a large dip angle working surface according to claim 1 is characterized by: A plurality of universal wheels (13) are provided at the bottom of the frame (1).

7. The corner plugging spraying equipment for a mine with a large dip angle working surface according to claim 1 is characterized by: The side wall of the second positioning block (44) is movably connected with a cleaning scraper (441).

8. The corner plugging spraying equipment for a mine with a large dip angle working surface according to claim 1 is characterized by: The slurry suction and discharge device (3) is also provided with a slurry suction pipe (32), and one end of the slurry suction pipe (32) away from the pump head assembly (2) is connected to a suction filter (321).

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