Fracture grouting plugging device for coal seam

Abstract

The utility model discloses a crack grouting plugging device for a coal seam, which relates to the technical field of grouting devices and comprises a grouting device main body, a connecting pipe is fixedly mounted on one side of the grouting device main body, a sealing ring is fixedly mounted on one side of the interior of the connecting pipe, a supporting ring is fixedly mounted on the left side of the outer side of the connecting pipe, and a sealing ring is fixedly mounted on the outer side of the supporting ring. Four supporting plates are fixedly installed on the periphery of the outer side of the supporting ring, a connecting ring is fixedly installed on the outer sides of the supporting plates, and four dampers are fixedly installed on the periphery of one side of the connecting ring. According to the crack grouting plugging device for the coal seam, the grout outlet is inserted into the crack, and when the grout outlet reaches the deep position of the crack, the grout outlet is shrunk through movement of the insertion pipe in the connecting pipe, so that the crack grouting plugging device for the coal seam is convenient to use; and a gap between the connecting pipe and the inserting pipe can be sealed through a sealing ring and a sealing ring, and the practicability of the crack grouting plugging device for the coal seam is improved.

Description

Technical Field

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

[0002] Coal seams usually refer to natural coal seams formed naturally underground. Most coal seams are located three hundred to five hundred meters underground. Some coal seams with larger reserves can extend to thousands of meters underground. The existence of coal seams means that coal gas will be formed. Due to the existence of coal gas and the movement of the earth's crust, some coal seams will form cracks, which will make the stability of the coal seams worse. Therefore, when excavating coal mines to mine coal seams, it is necessary to seal the potentially dangerous coal seam cracks first to stabilize the coal seams and facilitate mining.

[0003] The existing Chinese utility model patent with reference announcement number: CN208310739U discloses a large fissure thick slurry drilling grouting device, which relates to the field of geotechnical engineering technology. The grouting device includes a cement slurry pool, a grouting pump, a slurry delivery hose and a slurry delivery mechanism. The slurry delivery mechanism includes a spiral rod, a motor and a connecting plate. The spiral rod includes a central rotating rod and a rotary blade. One end of the spiral rod is fixedly connected to the motor main shaft and continuously rotates under the drive of the motor. The rotary blade is spirally fixedly connected to the circumference of the central rotating rod. Under the rotation of the spiral rod, the thick slurry is pushed into the deep cracks, thereby achieving the purpose of conveying slurry. The large fissure thick slurry drilling grouting device disclosed by the utility model overcomes the weakness of poor self-flow of cement thick slurry, and is suitable for pouring viscous cement slurries of various water-cement ratios; at the same time, the pouring speed can be effectively controlled by changing the power of the motor and the grouting pump according to the water-cement ratio of the thick slurry and the degree of development of the fissures.

[0004] When the existing fracture grouting plugging device for coal seams is used for deeper fractures, the grouting device needs to be manually held for a long time due to the deeper fractures, which makes the operation more complicated, and the nozzle of the existing device is not easy to extend and retract, so it is not easy to use for fractures of different depths. Utility Model Content

[0005] The purpose of the utility model is to overcome the problems of inconvenient operation and inconvenience in using the prior art for cracks of different depths, and to provide a crack grouting and plugging device for coal seams. The utility model is simple to use, has a firm structure and is easy to use.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A fissure grouting plugging device for coal seams, comprising:

[0008] The grouting device body has a connecting pipe fixedly installed on one side of the grouting device body, and the connecting pipe is in the shape of a pipe. A sealing ring is fixedly installed on the inner side of the connecting pipe, and the sealing ring is in the shape of an annular ring. A supporting ring is fixedly installed on the left side of the outer side of the connecting pipe, and the supporting ring is in the shape of an annular ring. Four supporting plates are fixedly installed around the outer side of the support ring, and a connecting ring is fixedly installed on the outer side of the support plate, and the connecting ring is in the shape of an annular ring. Four dampers are fixedly installed around one side of the connecting ring, and a spring is movably connected to the outer side of the damper, and a mounting ring is fixedly installed on one side of the spring, and the mounting ring is in the shape of an annular ring. Four supporting blocks are fixedly installed around the mounting ring, and a mounting groove is fixedly installed on one side of the support block, and a mounting bolt is movably connected to one side of the inner side of the mounting groove.

[0009] In a preferred embodiment, a sealing ring is movably connected inside the connecting pipe, and an insertion tube is fixedly installed on the outer side of the sealing ring. The insertion tube is a structure for being inserted into the interior of the connecting pipe.

[0010] In a preferred embodiment, a threaded ring is movably connected to the outside of one side of the sealing ring, and a slurry outlet pipe is fixedly installed on one side of the threaded ring. The slurry outlet pipe is a structure for discharging slurry.

[0011] In a preferred embodiment, slurry outlet holes are fixedly installed around the slurry outlet pipe, and a slurry outlet is fixedly installed on one side of the slurry outlet pipe, and the slurry outlet is a structure for discharging slurry.

[0012] In a preferred embodiment, a hose is fixedly mounted on one side of the grouting device body, and a slurry pump is fixedly mounted on one side of the hose. The slurry pump is a structure for extracting slurry from the mixing barrel.

[0013] In a preferred embodiment, a bottom plate is fixedly installed at the bottom of the slurry pump, and four universal wheels are fixedly installed around the bottom of the bottom plate. The universal wheels are a structure for driving the overall movement.

[0014] In a preferred embodiment, a mixing bucket is fixedly mounted on the left side of the top of the base plate, and a handle is fixedly mounted on one side of the base plate, and the handle is used to pull the entire structure.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The fracture grouting and plugging device for coal seams is inserted into the fracture through the slurry outlet. When the slurry outlet reaches the depth of the fracture, the slurry outlet is contracted by the movement of the insertion pipe inside the connecting pipe, so that the fracture grouting and plugging device for coal seams can be used. The gap between the connecting pipe and the insertion pipe can be sealed by the sealing ring and the sealing ring to avoid leakage. The slurry can be discharged to the surroundings through the slurry outlet holes around the slurry outlet pipe, and the slurry can be discharged to the front through the slurry outlet, thereby improving the practicality of the fracture grouting and plugging device for coal seams;

[0017] 2. The fracture grouting and plugging device for coal seams can be fixed on one side of the coal seam by means of the mounting bolts inside the mounting groove on one side of the support block, thereby fixing the main body of the grouting device, avoiding the tediousness of lifting the main body of the grouting device for a long time when the cracks are too deep. The spring can be contracted by pushing the main body of the grouting device, thereby adjusting the depth of grouting. The contraction of the spring can be supported by the damper, thereby improving the practicability of the fracture grouting and plugging device for coal seams. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the main body of the grouting device in the utility model;

[0020] Figure 3 It is a schematic diagram of the connecting ring in the utility model;

[0021] Figure 4 It is a schematic diagram of the sealing ring in the utility model;

[0022] Figure 5 It is a schematic diagram of the hose in the utility model.

[0023] 1. Grouting device body; 11. Connecting pipe; 12. Sealing ring; 13. Support ring; 14. Support plate; 2. Connecting ring; 21. Damper; 22. Spring; 23. Mounting ring; 24. Support block; 25. Mounting groove; 26. Mounting bolt; 3. Sealing ring; 31. Inserting pipe; 32. Threaded ring; 33. Slurry outlet pipe; 34. Slurry outlet hole; 35. Slurry outlet; 4. Hose; 41. Slurry pump; 42. Bottom plate; 43. Universal wheel; 44. Mixing bucket; 45. Handle. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Combined with Figure 1-5 In this embodiment, a fracture grouting and plugging device for coal seams includes: a grouting device body 1, a connecting pipe 11 is fixedly installed on one side of the grouting device body 1, and the connecting pipe 11 is in a pipe shape. A sealing ring 12 is fixedly installed on one side of the inner side of the connecting pipe 11, and the sealing ring 12 is in an annular shape. A support ring 13 is fixedly installed on the left side of the outer side of the connecting pipe 11, and the support ring 13 is in an annular shape. Four support plates 14 are fixedly installed around the outer side of the support ring 13.

[0026] Specifically, the grouting device body 1 is a structure for grouting. The connecting ring 2 can be supported by the supporting ring 13 and the four supporting plates 14 around it, the slurry can be discharged through the connecting pipe 11, and the outer side of the insertion pipe 31 can be sealed by the sealing ring 12.

[0027] A connecting ring 2 is fixedly installed on the outer side of the support plate 14, and the connecting ring 2 is in an annular shape. Four dampers 21 are fixedly installed around one side of the connecting ring 2, and a spring 22 is movably connected to the outer side of the damper 21. A mounting ring 23 is fixedly installed on one side of the spring 22, and the mounting ring 23 is in an annular shape. Four supporting blocks 24 are fixedly installed around the mounting ring 23, and a mounting groove 25 is fixedly installed on one side of the support block 24, and a mounting bolt 26 is movably connected to one side of the inner side of the mounting groove 25.

[0028] Specifically, the four support blocks 24 can be fixed to the side of the coal seam through the mounting bolts 26 inside the mounting groove 25 and supported by the mounting ring 23. The depth of the slurry outlet 35 can be adjusted by the contraction of the spring 22. The spring 22 can be supported by the contraction of the damper 21, and the outer side of the support plate 14 can be connected by the connecting ring 2.

[0029] The sealing ring 3 is movably connected inside the connecting tube 11 , and an insertion tube 31 is fixedly installed on the outer side of the sealing ring 3 .

[0030] A threaded ring 32 is movably connected to the outside of one side of the sealing ring 3 , and a slurry outlet pipe 33 is fixedly installed on one side of the threaded ring 32 .

[0031] The slurry outlet pipe 33 is fixedly provided with slurry outlet holes 34 around it, and a slurry outlet port 35 is fixedly provided on one side of the slurry outlet pipe 33 .

[0032] Specifically, by moving the insertion tube 31 inside the connecting tube 11, the insertion depth can be adjusted, the slurry can be discharged from all sides through the slurry holes 34 around the slurry discharge pipe 33, and the slurry can be discharged forward through the slurry outlet 35, thereby improving the slurry discharge range and efficiency of the fracture grouting and plugging device for coal seams.

[0033] A hose 4 is fixedly installed on one side of the grouting device body 1 , and a grouting pump 41 is fixedly installed on one side of the hose 4 .

[0034] A bottom plate 42 is fixedly mounted on the bottom of the slurry pump 41 , and four universal wheels 43 are fixedly mounted around the bottom of the bottom plate 42 .

[0035] A mixing bucket 44 is fixedly mounted on the left side of the top of the bottom plate 42 , and a handle 45 is fixedly mounted on one side of the bottom plate 42 .

[0036] Specifically, by pulling the handle 45, the four universal wheels 43 around the bottom of the bottom plate 42 can be driven to rotate, thereby driving the fracture grouting and plugging device for coal seams to move, the slurry can be stirred by the stirring barrel 44 to prevent the slurry from settling, the slurry inside the stirring barrel 44 can be extracted by the slurry pump 41, and the slurry can be stirred and mixed by the stirring barrel 44 to avoid the problem of slurry sedimentation, the slurry inside the stirring barrel 44 can be extracted by the operation of the slurry pump 41, and after extraction, the slurry is sent to the inside of the grouting device body 1 through the hose 4, thereby improving the practicality of the fracture grouting and plugging device for coal seams, grouting can be performed by inserting the slurry outlet 35 into the inside of the crack, when the slurry outlet 35 is inserted into the deep of the crack, the insertion tube 31 will move inside the connecting tube 11, thereby facilitating the use and installation of cracks of different depths, and the gap between the connecting tube 11 and the insertion tube 31 can be sealed by the sealing ring 3 and the sealing ring 12. The seal avoids leakage problems and improves the practicality of the fracture grouting and plugging device for coal seams. The slurry can be discharged from all sides through the slurry outlet holes 34 around the slurry outlet pipe 33, and the slurry can be sprayed from the front through the slurry outlet 35, which improves the slurry outlet speed and slurry outlet range of the fracture grouting and plugging device for coal seams. The slurry outlet 35 can be disassembled by rotating the threaded ring 32, so that other slurry outlets 35 can be replaced, which improves the convenience of the fracture grouting and plugging device for coal seams. The mounting ring 23 can be fixed to one side of the coal seam by the mounting bolts 26 inside the mounting groove 25. The depth of the slurry outlet 35 can be adjusted by the contraction of the spring 22. The spring 22 can be supported by the damper 21, and the connecting ring 2 can be supported by the support plate 14 outside the support ring 13, which improves the stability and convenience of the fracture grouting and plugging device for coal seams and avoids the cumbersomeness of long-term manual support when using it for deep cracks.

[0037] Working principle: First, by pulling the handle 45, the four universal wheels 43 around the bottom of the fracture grouting and plugging device for coal seams can be driven to rotate, thereby driving the fracture grouting and plugging device for coal seams to move, and moving the fracture grouting and plugging device for coal seams to a designated position.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fissure grouting plugging device for coal seams, characterized in that: The crack grouting plugging device for coal seams comprises a grouting device body (1), a connecting pipe (11) is fixedly installed on one side of the grouting device body (1), the connecting pipe (11) is in the shape of a pipe, a sealing ring (12) is fixedly installed on one side of the inside of the connecting pipe (11), the sealing ring (12) is in the shape of a ring, a supporting ring (13) is fixedly installed on the left side of the outside of the connecting pipe (11), the supporting ring (13) is in the shape of a ring, four supporting plates (14) are fixedly installed around the outside of the supporting ring (13), and the outside of the supporting plates (14) are fixedly installed. A connecting ring (2) is fixedly installed, the connecting ring (2) is in an annular shape, four dampers (21) are fixedly installed around one side of the connecting ring (2), a spring (22) is movably connected to the outer side of the damper (21), a mounting ring (23) is fixedly installed on one side of the spring (22), the mounting ring (23) is in an annular shape, four support blocks (24) are fixedly installed around the mounting ring (23), a mounting groove (25) is fixedly installed on one side of the support block (24), and a mounting bolt (26) is movably connected to the inner side of the mounting groove (25).

2. A fissure grouting plugging device for coal seams according to claim 1, characterized in that: A sealing ring (3) is movably connected inside the connecting pipe (11), and an insertion pipe (31) is fixedly installed on one side of the outer side of the sealing ring (3).

3. A fissure grouting plugging device for coal seams according to claim 2, characterized in that: A threaded ring (32) is movably connected to the outside of one side of the sealing ring (3), and a slurry outlet pipe (33) is fixedly installed on one side of the threaded ring (32).

4. A fissure grouting plugging device for coal seams according to claim 3, characterized in that: The slurry outlet pipe (33) is fixedly provided with slurry outlet holes (34) around its periphery, and a slurry outlet port (35) is fixedly provided on one side of the slurry outlet pipe (33).

5. The fissure grouting plugging device for coal seams according to claim 1, characterized in that: A hose (4) is fixedly mounted on one side of the grouting device body (1), and a grouting pump (41) is fixedly mounted on one side of the hose (4).

6. A fissure grouting plugging device for coal seams according to claim 5, characterized in that: A bottom plate (42) is fixedly mounted on the bottom of the slurry pump (41), and four universal wheels (43) are fixedly mounted around the bottom of the bottom plate (42).

7. A fissure grouting plugging device for coal seams according to claim 6, characterized in that: A mixing bucket (44) is fixedly mounted on the left side of the top of the bottom plate (42), and a handle (45) is fixedly mounted on one side of the bottom plate (42).

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