Downhole movable grouting device

Abstract

The utility model discloses an underground movable grouting device, belongs to the technical field of mine support, and solves the problems that the existing grouting equipment is not suitable for on-site movable grouting in an underground roadway, and the efficiency and the quality of the grouting process are influenced as the manual grouting cannot be accurately controlled and uniformly grouted. The device comprises a tank body, an air inlet pipe and a slurry discharge pipe, a cover is arranged on the tank body, a locking device is arranged between the tank body and the cover, the air inlet pipe is arranged at the upper part of the tank body, and the slurry discharge pipe is arranged at the bottom of the tank body. The device is simple in structure, light, convenient, flexible, reliable and practical, and can play an important role in multiple fields such as underground support of metal mines and embedding of scientific research drilling instruments.

Description

Technical Field

[0001] The utility model belongs to the technical field of mine support, and particularly relates to an underground mobile grouting device. Background Art

[0002] During the permanent support process of underground roadways, generally, cement mortar is used as an anchoring agent during secondary shotcrete mesh support or long cable bolt support. The pre-prepared slurry is injected into the borehole through a device, and then the bolt or cable bolt is installed into the borehole to make it fully bonded with the rock to form a whole, so as to achieve the effect of safety and stability after roadway support. It plays an important role in multiple operations such as shotcrete mesh support, long cable bolt support, and scientific research borehole pre-buried instruments in underground metal mines. However, because most of the existing grouting equipment is relatively bulky and not suitable for mobile grouting at the underground site, and it is impossible to accurately control and evenly grout during manual grouting, which increases the construction difficulty and then affects the efficiency and quality of the grouting process. Summary of the Utility Model

[0003] The utility model provides an underground mobile grouting device to solve the problems that the current large-scale grouting equipment is not suitable for mobile grouting at the underground roadway site, and it is impossible to accurately control and evenly grout during manual grouting, which affects the efficiency and quality of the grouting process.

[0004] The technical solution of the utility model is: an underground mobile grouting device, characterized in that: it includes a tank body, an air inlet pipe, and a slurry discharge pipe. A lid is provided on the tank body, and a locking device is provided between the tank body and the lid. The air inlet pipe is arranged on the upper part of the tank body, and the slurry discharge pipe is arranged at the bottom of the tank body.

[0005] As a further improvement of the utility model, the bottom of the tank body is semi-spherical, which is convenient for high-pressure air to discharge the grouting liquid.

[0006] As a further improvement of the utility model, the locking device includes a buckle, a connecting rod, and a rotating handle. The buckles are arranged at both ends of the connecting rod, and the buckles are directly clamped on the outer surface of the tank body. A threaded through hole is opened in the center of the connecting rod, and a connecting hole is provided on the lid. The connecting hole does not penetrate the lid. The rotating handle is connected to the threaded through hole and the threaded connecting hole by threads, and the lid can be closed tightly by rotating the rotating handle.

[0007] As a further improvement of the utility model, support legs are provided at the bottom of the tank body, and there are 3 support legs evenly distributed on the tank body.

[0008] The beneficial effects of the utility model are as follows: The utility model is lighter than large grouting devices, facilitating movement and grouting in underground roadways. By connecting the air inlet pipe to the high-pressure air used in underground mines, continuous pressurization is applied to the device, enabling the slurry to flow evenly from the grouting pipe during grouting, ensuring stable grouting into the holes without generating grouting bubbles that affect measurement, thereby achieving a safe and stable effect after roadway support. The utility model has a simple structure, is light, flexible, reliable and practical, and can play an important role in multiple fields such as underground support in metal mines and pre-burial of scientific research drilling instruments. Brief Description of the Drawings

[0009] Figure 1 It is a schematic three-dimensional structure diagram of the utility model.

[0010] In the figure: 1 - tank body, 2 - base, 3 - lid, 4 - air inlet pipe, 5 - support leg, 6 - slurry discharge pipe, 7 - buckle, 8 - connecting rod, 9 - rotating handle, 10 - connecting hole. Detailed Embodiment

[0011] The following further elaborates on the utility model in conjunction with the drawings and detailed embodiments.

[0012] As Figure 1 shown, an underground mobile grouting device is characterized in that it includes a tank body 1, an air inlet pipe 4, and a slurry discharge pipe 6. A lid 3 is provided on the tank body 1, and a locking device is provided between the tank body 1 and the lid 3. The air inlet pipe 4 is arranged on the upper part of the tank body 1, and the slurry discharge pipe 6 is arranged at the bottom of the tank body 1.

[0013] The bottom of the tank body 1 is semi-spherical, facilitating the discharge of the grouting liquid by high-pressure air.

[0014] The locking device includes a buckle 7, a connecting rod 8, and a rotating handle 9. The buckles 7 are arranged at both ends of the connecting rod 8, and the buckles 7 are directly clamped on the outer surface of the tank body 1. A threaded through-hole 2 is opened in the center of the connecting rod 8, and a connecting hole 10 is provided on the lid 3. The connecting hole 10 does not penetrate the lid 3. The rotating handle 9 is connected to the threaded through-hole 2 and the threaded connecting hole 10 by threads, and the lid 3 can be tightly closed by rotating the rotating handle 9.

[0015] Support legs 5 are provided at the bottom of the tank body 1, and there are 3 support legs 5 evenly distributed on the tank body 1.

[0016] When in use, it is necessary to first connect valves and PVC pipes of sufficient length to the air inlet pipe 4 and the slurry discharge pipe 6. Close the valves, put the grouting liquid of the required grouting volume into the tank body 1, and close the lid 3. Snap the buckle 7 of the connecting rod 8 onto the outside of the tank body 1. Screw the thread at the lower end of the rotary handle 9 into the opening on the connecting rod 8 and the connecting hole 10 on the lid 3 in sequence, so that the lid 3 can tightly press on the tank body 1. At this time, connect the PVC pipe of the air inlet pipe 4 to the high-pressure air pipe in the underground mine, slightly open the valve of the air inlet pipe 4, check whether the whole device is airtight. After confirming airtightness, connect the PVC pipe on the grouting pipe 6 to the hole to be grouted, open the valve of the air inlet pipe 4, so that high-pressure air enters the tank body 1, and then open the valve on the grouting pipe 6, so that the grouting liquid enters the grouting hole through the pressure of the high-pressure air. After the grouting is completed, close all valves to complete the grouting work.

Claims

1. A mobile underground grouting device, characterized in that: The invention comprises a tank body (1), an air inlet pipe (4), and a slurry discharge pipe (6), wherein the air inlet pipe (4) is arranged at the upper part of the tank body (1), the slurry discharge pipe (6) is arranged at the bottom of the tank body (1), a cover (3) is arranged on the tank body (1), a locking device is arranged between the tank body (1) and the cover (3), the locking device comprises a buckle (7), a connecting rod (8), and a rotating handle (9), the buckle (7) is arranged at both ends of the connecting rod (8), the buckle (7) is directly connected to the outer surface of the tank body (1), a threaded through hole (2) is opened at the center of the connecting rod (8), a connecting hole (10) is arranged on the cover (3), and the rotating handle (9) is connected to the threaded through hole (2) and the threaded connecting hole (10) through a thread.

2. The underground mobile grouting device according to claim 1, characterized in that: The bottom of the tank body (1) is in a semi-spherical shape.

3. A downhole mobile grouting device according to claim 1 or 2, characterized in that: The bottom of the tank body (1) is provided with supporting legs (5).

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