Coal mine deep well roadway grouting body maintenance equipment and using method thereof

Abstract

The invention belongs to the technical field of coal mining, and particularly relates to coal mine deep well roadway grouting body maintenance equipment which comprises a grouting pump and two feeding pipes, the discharging end of the grouting pump is communicated with the two feeding pipes, the two feeding pipes are communicated through a plurality of slurry guide pipes, and the slurry guide pipes are communicated with the discharging end of the grouting pump. A plurality of first connectors are arranged on the outer side of each slurry guide pipe, each first connector is in threaded connection with a material distribution disc, each material distribution disc is provided with a plurality of second connectors, and each second connector is connected with a slurry injection pipe through an anti-explosion hose; the grouting pipe can be inserted into the corresponding position for grouting according to the actual grouting requirement, the maintenance effect is good, raw materials are saved, the maintenance cost is reduced, and creativity is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mining, and in particular relates to a coal mine deep shaft tunnel grouting body maintenance device and a use method thereof. Background Art

[0002] The purpose of grouting the loose zone of surrounding rock is to change the chemical composition of the loose zone of surrounding rock by injecting slurry into the loose zone of surrounding rock, thereby changing its physical properties, cementing the weak, loose and broken loose zone of surrounding rock into an integral, homogeneous and isotropic consolidated rock mass, improving its own tensile, compressive and shear strength, and being able to resist the maximum concentrated stress transmitted from the inside of the loose zone of surrounding rock without deforming itself or deforming within the technically permitted range.

[0003] The existing Chinese patent number is CN112983477B: a coal mine deep shaft tunnel grouting body maintenance device and maintenance method thereof. The grouting body maintenance device proposed in the patent can inject slurry into the designated area of ​​the loose layer of the tunnel surrounding rock at a certain interval. However, the location where the loosened surrounding rock layer of the coal mine tunnel is generally unevenly distributed. The grouting body maintenance device proposed in the patent will cause waste of slurry and bring unnecessary work burden to the maintenance workers. In order to better perform grouting according to the actual situation of the loosened surrounding rock layer of the tunnel, a coal mine deep shaft tunnel grouting body maintenance equipment and a method of using the same are now proposed. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a coal mine deep shaft tunnel grouting body maintenance equipment and a use method thereof.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a coal mine deep shaft tunnel grouting body maintenance equipment, comprising a grouting pump and two feeding pipes, the discharge end of the grouting pump is connected to the two feeding pipes, the two feeding pipes are connected through a plurality of grouting pipes, the grouting pipes are in an inverted "U" shape, a plurality of first connectors are arranged on the outside of each of the grouting pipes, a distribution plate is threadedly connected to each of the first connectors, a plurality of second connectors are arranged on each of the distribution plates, each of the second connectors is connected to a grouting pipe through an explosion-proof hose, the grouting pipes are inserted into the surrounding rock layer of the tunnel, a sealing cabin is provided in the pipe wall of each of the grouting pipes, a matching sealing pipe is arranged in the sealing cabin, a plurality of first grouting holes connected to the sealing cabin are provided on the inner and outer pipe walls of the grouting pipes, a second grouting hole corresponding to the first grouting hole is provided on the sealing pipe, a movable groove connected to the sealing cabin is provided on the surface of the grouting pipe, and a movable block fixedly connected to the sealing pipe is provided in the movable groove.

[0006] Preferably, a method for using a grouting body maintenance device for a deep mine tunnel is as follows: A. Mark the position in the tunnel where grouting is required, and then insert the grouting pipe according to the position in the tunnel where grouting is required, ensuring that the part of the grouting pipe with the first grouting hole is immersed in the loose layer of the surrounding rock of the tunnel; B. Extract slurry through the grouting pump, then inject it into the two feeding pipes, then enter the slurry guide pipe through the feeding pipe, then enter the injection and distribution tray through the first connector, and then enter the corresponding grouting pipe through the second connector and the explosion-proof hose; C. The sealing tube can be driven to rotate a certain angle in the sealing cabin through the movable block as needed, so that the second grouting hole connects the two corresponding first grouting holes. The slurry passes through the first grouting hole and the second grouting hole and enters the loose layer of the surrounding rock of the tunnel, thereby achieving the purpose of grouting maintenance.

[0007] Compared with the prior art, the present invention has the following beneficial effects: The present invention can insert the grouting pipe into the corresponding position according to the actual grouting needs to carry out grouting, has good curing effect, saves raw materials, reduces the curing cost, and is creative. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic structural diagram of a front cross-section of the present invention; Figure 2 It is a structural schematic diagram of the present invention; Figure 3 For the present invention Figure 1 The structural diagram at A in the middle; Figure 4 It is a schematic diagram of the cross-sectional structure of the slurry guide pipe of the present invention; In the figure: 1. grouting pump; 2. feeding pipe; 3. surrounding rock layer; 4. grouting pipe; 5. distribution plate; 6. second connecting head; 7. explosion-proof hose; 8. first connecting head; 9. movable block; 10. first grouting hole; 11. grouting pipe; 12. movable groove; 13. sealing pipe; 14. sealing cabin; 15. second grouting hole. DETAILED DESCRIPTION

[0009] 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 described embodiments 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 creative work are within the scope of protection of the present invention. Example

[0010] See also Figure 1-4 The present invention provides the following technical solutions: A coal mine deep shaft tunnel grouting body maintenance equipment, comprising a grouting pump 1 and two feeding pipes 2, the discharge end of the grouting pump 1 is connected to the two feeding pipes 2, the two feeding pipes 2 are connected through a plurality of slurry guide pipes 4, the slurry guide pipes 4 are in an inverted "U" shape, and a plurality of first connectors 8 are arranged on the outside of each of the slurry guide pipes 4, each of the first connectors 8 is threadedly connected to a distribution plate 5, each of the distribution plate 5 is provided with a plurality of second connectors 6, and each of the second connectors 6 is connected to a through an explosion-proof hose 7. A grouting pipe 11 is inserted into the surrounding rock layer 3 of the tunnel, a sealing cabin 14 is provided in the pipe wall of each of the grouting pipes 11, a matching sealing pipe 13 is arranged in the sealing cabin 14, a plurality of first grouting holes 10 connected to the sealing cabin 14 are provided on the inner and outer pipe walls of the grouting pipe 11, a second grouting hole 15 corresponding to the first grouting holes 10 is provided on the sealing pipe 13, a movable groove 12 connected to the sealing cabin 14 is provided on the surface of the grouting pipe 11, and a movable block 9 fixedly connected to the sealing pipe 13 is arranged in the movable groove 12.

[0011] Specifically, a method for using a grouting body maintenance device for a deep mine tunnel is as follows: A. Mark the position in the tunnel where grouting is required, and then insert the grouting pipe 11 according to the position in the tunnel where grouting is required, ensuring that the portion of the grouting pipe 11 where the first grouting hole 10 is opened is immersed in the loose layer of the surrounding rock of the tunnel; B. The slurry is extracted by the grouting pump 1, and then injected into the two feeding pipes 2, and then enters the slurry guide pipe 4 through the feeding pipe 2, and then enters the injection and distribution tray 5 through the first connector 8, and then enters the corresponding grouting pipe 11 through the second connector 6 and the explosion-proof hose 7; C. The movable block 9 can be used to drive the sealing tube 13 to rotate a certain angle in the sealing chamber 14 as needed, so that the second grouting hole 15 is connected to the two corresponding first grouting holes 10, and the slurry passes through the first grouting hole 10 and the second grouting hole 15 and enters the loose layer of the surrounding rock of the tunnel, thereby achieving the purpose of grouting maintenance.

[0012] Finally, it should be noted that the above description 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 replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A grouting body maintenance device for deep mine tunnels, comprising a grouting pump (1) and two feeding pipes (2), characterized in that: The discharge end of the grouting pump (1) is connected to the two feeding pipes (2), and the two feeding pipes (2) are connected via a plurality of grouting pipes (4), the grouting pipes (4) are in an inverted "U" shape, and a plurality of first connectors (8) are arranged on the outside of each grouting pipe (4), and a material distribution plate (5) is threadedly connected to each of the first connectors (8), and a plurality of second connectors (6) are arranged on each of the material distribution plates (5), and each of the second connectors (6) is connected to a grouting pipe (11) via an explosion-proof hose (7), and the grouting pipe (11) is plugged into the surrounding rock layer ( 3), a sealed cabin (14) is provided in the wall of each grouting pipe (11), a matching sealed pipe (13) is provided in the sealed cabin (14), a plurality of first grouting holes (10) connected to the sealed cabin (14) are provided on the inner and outer walls of the grouting pipe (11), second grouting holes (15) corresponding to the first grouting holes (10) are provided on the sealed pipe (13), a movable groove (12) connected to the sealed cabin (14) is provided on the surface of the grouting pipe (11), and a movable block (9) fixedly connected to the sealed pipe (13) is provided in the movable groove (12).

2. The method for using the grouting body maintenance equipment for deep mine tunnels according to claim 1, characterized in that: Here’s how to use it: A. marking the position in the tunnel where grouting is required, and then inserting a grouting pipe (11) according to the position in the tunnel where grouting is required, ensuring that the portion of the grouting pipe (11) where the first grouting hole (10) is opened is immersed in the loose layer of the surrounding rock of the tunnel; B. Slurry is extracted by a grouting pump (1), then injected into two feeding pipes (2), then enters the slurry guide pipe (4) through the feeding pipe (2), then enters the injection and distribution plate (5) through the first connector (8), and then enters the corresponding grouting pipe (11) through the second connector (6) and the explosion-proof hose (7); C. The sealing tube (13) can be driven by the movable block (9) to rotate a certain angle in the sealing chamber (14) as required, so that the second grouting hole (15) is connected to the two corresponding first grouting holes (10), and the slurry passes through the first grouting holes (10) and the second grouting holes (15) and enters the loose layer of the surrounding rock of the tunnel, thereby achieving the purpose of grouting maintenance.

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