Coal mine air leakage stoppage material grouting device

Abstract

The utility model relates to the technical field of grouting devices, in particular to a coal mine air leakage stoppage material grouting device which comprises a material conveying barrel and a material conveying head, a rotating ring is rotatably connected between the material conveying barrel and the material conveying head, an air pump is arranged on the outer side of the rotating ring, the output end of the air pump is fixedly connected with an input pipe, and the input pipe is connected with an air inlet pipe. An air injection assembly is arranged at the end, away from the air pump, of the input pipe. The air injection assembly comprises a ventilation pipe fixedly connected with one end of the input pipe, a plurality of communicated air injection pipes are fixedly connected to the side face of the inner wall of the ventilation pipe, and a plurality of through holes matched with the air injection pipes are formed in the outer side of the rotating ring. According to the device, slurry on the inner wall of the conveying head is softened through the arrangement of the heating wires, the softened slurry is sprayed down through high-pressure gas through the matched arrangement of the gas pump, the input pipe, the ventilation pipe and the gas spraying pipe, the ventilation pipe, the rotating ring and the gas spraying pipe are dragged to rotate, and the gas spraying range of the gas spraying pipe is enlarged.

Description

Technical Field

[0001] The utility model relates to the technical field of grouting devices, in particular to a grouting device for plugging air leakage in coal mines. Background Art

[0002] Grouting materials, such as fly ash and yellow mud, are mixed uniformly in a specific proportion to create a slurry of a certain concentration. During the grouting process, a grouting hole or grouting channel is first formed in the air leakage area by drilling or other means. Then, a grouting pipe is inserted into the grouting hole, and a grouting pump is activated to pressurize and inject the plugging material into the air leakage area. Under the influence of the grouting pressure, the grouting material gradually diffuses and fills the air leakage area, forming a sealing layer. As the grouting material is continuously injected and solidifies, the air leakage problem is effectively resolved.

[0003] With respect to the above-mentioned related technologies, the defect of the existing grouting device is that after the grouting material is injected through the grouting head, some slurry will remain on the inner wall of the grouting head. After long-term use, a large amount of slurry will accumulate and solidify, causing blockage of the grouting head. Therefore, the utility model provides a grouting device for coal mine air leakage plugging materials. Utility Model Content

[0004] The purpose of this application is to provide a grouting device for plugging air leakage in coal mines, so as to solve the problem proposed in the above background technology that after grouting the material through the grouting head, some slurry will remain on the inner wall of the grouting head. After long-term use, a large amount of slurry will accumulate and solidify, causing blockage of the grouting head.

[0005] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a grouting device for plugging air leakage in coal mines, comprising a feed barrel and a feed head, wherein a rotating ring is rotatably connected between the feed barrel and the feed head, an air pump is arranged on the outside of the rotating ring, the output end of the air pump is fixedly connected to an input pipe, and an injection assembly is arranged on the end of the input pipe away from the air pump; the injection assembly comprises a ventilation pipe fixedly connected to one end of the input pipe, a plurality of interconnected injection pipes are fixedly connected to the side surface of the inner wall of the ventilation pipe, a plurality of through holes adapted to the injection pipes are provided on the outside of the rotating ring, and the end of the injection pipe away from the ventilation pipe faces the inner wall of the feed head.

[0006] Preferably, a plurality of slots are provided on the inner side of the feeding head, and heating wires are provided on the inner wall side of the slots.

[0007] Preferably, the top and bottom of the rotating ring are fixedly connected to limit rings, and the inner sides of the feeding barrel and the feeding head are provided with sliding grooves adapted to the limit rings.

[0008] Preferably, a fixing plate is fixedly connected to the outer side of the rotating ring, and the air pump is fixedly connected to the fixing plate.

[0009] Preferably, a sliding plate is fixedly connected to the outer side of the rotating ring, and a groove is provided on the outer side of the sliding plate.

[0010] Preferably, a convex block is provided on the inner wall side of the groove, and the convex block is made of rubber block.

[0011] Preferably, a recessed groove adapted to the protrusion is provided on the outer side of the feeding head, a U-shaped frame is fixedly connected to the outer side of the feeding barrel, and one end of the U-shaped frame away from the feeding barrel is fixedly connected to the outer side of the feeding head.

[0012] In summary, the technical effects and advantages of the utility model are:

[0013] 1. In the utility model, the slurry on the inner wall of the feeding head is softened by setting a plurality of heating wires. The softened slurry is sprayed down by high-pressure gas through the coordinated setting of the air pump, input pipe, vent pipe and jet pipe. The vent pipe, rotating ring and jet pipe are dragged to rotate, so that the jet range of the jet pipe is enlarged.

[0014] 2. In the present invention, the rotating ring and the limiting ring are arranged in coordination to avoid the rotating ring from deflecting during deflection, and the sliding plate, the protrusion and the recessed groove are arranged in coordination to facilitate the limiting of the sliding plate and the rotating ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic diagram of the axial structure of the utility model from a first perspective;

[0017] Figure 2 This is a schematic diagram of the axial structure from a second viewing angle of the present invention;

[0018] Figure 3 This is a schematic structural diagram of the sliding plate, protrusions and grooves in the present invention;

[0019] Figure 4 It is a structural schematic diagram of the U-shaped frame in the utility model.

[0020] In the figure: 1. Feeding barrel; 2. Rotating ring; 3. Feeding head; 4. Ventilation pipe; 5. Injection pipe; 6. Fixed plate; 7. Air pump; 8. Input pipe; 9. Sliding plate; 10. Bump; 11. Limiting ring; 12. Heating wire; 13. Empty slot; 14. Groove; 15. Concave slot; 16. U-shaped frame. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0023] Example 1: Reference Figure 1-4 The coal mine plugging air leakage material grouting device shown includes a feeding cylinder 1 and a feeding head 3. A rotating ring 2 is rotatably connected between the feeding cylinder 1 and the feeding head 3. An air pump 7 is provided on the outside of the rotating ring 2. The output end of the air pump 7 is fixedly connected to an input pipe 8. An injection assembly is provided on the end of the input pipe 8 away from the air pump 7; the injection assembly includes a ventilation pipe 4 fixedly connected to one end of the input pipe 8, and a plurality of interconnected injection pipes 5 are fixedly connected to the side of the inner wall of the ventilation pipe 4. A plurality of through holes adapted to the injection pipes 5 are opened on the outside of the rotating ring 2. The end of the jet pipe 5 away from the vent pipe 4 is directed toward the inner wall of the feeding head 3, which is convenient for cleaning the slurry remaining on the inner wall of the feeding head 3; a plurality of empty grooves 13 are provided on the inner side of the feeding head 3, and a heating wire 12 is provided on the side of the inner wall of the empty groove 13, which is convenient for heating and softening the slurry remaining on the inner wall of the feeding head 3; the top and bottom of the rotating ring 2 are fixedly connected to the limit ring 11, and the inner sides of the feeding cylinder 1 and the feeding head 3 are provided with sliding grooves adapted to the limit ring 11 to prevent the rotating ring 2 from deflecting during rotation.

[0024] In this embodiment, the slurry is injected through the feeding cylinder 1, the rotating ring 2 and the feeding head 3. After the injection is completed, the heating wire 12 is energized to soften the slurry remaining on the inner wall side of the feeding head 3. The air pump 7 is controlled to eject high-pressure gas through the input pipe 8, the vent pipe 4 and the jet pipe 5. The softened slurry is sprayed down by the high-pressure gas, and the vent pipe 4, the rotating ring 2 and the jet pipe 5 are dragged to rotate, so that the jet range of the jet pipe 5 is increased.

[0025] Example 2: Reference Figure 1-4Based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes that a fixed plate 6 is fixedly connected to the outer side of the rotating ring 2, and the air pump 7 is fixedly connected to the fixed plate 6, and the fixed plate 6 supports the air pump 7; a sliding plate 9 is fixedly connected to the outer side of the rotating ring 2, and a groove 14 is provided on the outer side of the sliding plate 9; a protrusion 10 is provided on the inner wall side of the groove 14, and the protrusion 10 is made of a rubber block and has deformable ability; a recessed groove 15 is provided on the outer side of the feeding head 3 to match the protrusion 10, and a U-shaped frame 16 is fixedly connected to the outer side of the feeding barrel 1, and the end of the U-shaped frame 16 away from the feeding barrel 1 is fixedly connected to the outer side of the feeding head 3 to fix the feeding barrel 1 and the feeding head 3.

[0026] The working principle of this utility model is as follows: after the slurry on the inner wall side of the feeding head 3 is cleaned, the ventilation pipe 4 is dragged to drive the sliding plate 9 and the protrusion 10 to move, and the protrusion 10 is squeezed and deformed by the outer side of the feeding head 3 until the protrusion 10 is stuck in the concave groove 15, thereby limiting the sliding plate 9 and the rotating ring 2.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. 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 grouting device for plugging air leakage in coal mines, comprising a feeding tube (1) and a feeding head (3), characterized in that: A rotating ring (2) is rotatably connected between the feeding cylinder (1) and the feeding head (3); an air pump (7) is provided on the outside of the rotating ring (2); an input pipe (8) is fixedly connected to the output end of the air pump (7); and an injection assembly is provided at one end of the input pipe (8) away from the air pump (7); The jet assembly comprises a vent pipe (4) fixedly connected to one end of the input pipe (8); a plurality of interconnected jet pipes (5) are fixedly connected to the side surface of the inner wall of the vent pipe (4); a plurality of through holes adapted to the jet pipes (5) are provided on the outer side of the rotating ring (2); and one end of the jet pipe (5) away from the vent pipe (4) faces the inner wall of the feed head (3).

2. The grouting device for plugging air leakage in coal mines according to claim 1, characterized in that: A plurality of slots (13) are provided on the inner side of the feeding head (3), and heating wires (12) are provided on the inner wall side of the slots (13).

3. The grouting device for plugging air leakage in coal mines according to claim 1, characterized in that: The top and bottom of the rotating ring (2) are fixedly connected to a limit ring (11), and the inner sides of the feeding barrel (1) and the feeding head (3) are provided with a sliding groove adapted to the limit ring (11).

4. The grouting device for plugging air leakage in coal mines according to claim 3, characterized in that: A fixed plate (6) is fixedly connected to the outer side of the rotating ring (2), and the air pump (7) is fixedly connected to the fixed plate (6).

5. The grouting device for plugging air leakage in coal mines according to claim 4, characterized in that: A sliding plate (9) is fixedly connected to the outer side of the rotating ring (2), and a groove (14) is provided on the outer side of the sliding plate (9).

6. The grouting device for plugging air leakage in coal mines according to claim 5, characterized in that: A convex block (10) is provided on the inner wall side of the groove (14), and the convex block (10) is made of a rubber block.

7. The grouting device for plugging air leakage in coal mines according to claim 6, characterized in that: The outer side of the feeding head (3) is provided with a recessed groove (15) adapted to the protrusion (10), and the outer side of the feeding barrel (1) is fixedly connected with a U-shaped frame (16), and the end of the U-shaped frame (16) away from the feeding barrel (1) is fixedly connected to the outer side of the feeding head (3).

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