CN208137905U - A kind of provisions for grouting for coal mine flood prevention and treatment - Google Patents

Abstract

The utility model relates to the technical field of coal mine water disaster prevention and control, in particular to a grouting device for coal mine water disaster prevention and control; it includes a grouting pipe, a number of one-way electromagnetic valves are sequentially arranged on the side wall of the grouting pipe from top to bottom, and the top of the grouting pipe is connected There is a grouting hose; the upper part of the grouting pipe is rotatably connected to a support plate arranged horizontally, and the two ends of the support plate are fixedly connected to telescopic columns arranged vertically; A gear, the second gear meshes on the right side of the first gear, the second gear is fixedly connected to the rotating shaft, the rotating shaft is connected to the motor, and the motor is fixed on the support plate; the grouting fluid is fed from the one-way solenoid valve Enter the gap for grouting treatment, but the grouting liquid will not flow into the grouting pipe in reverse, so that the grouting work can be carried out smoothly; the first gear drives the grouting pipe to rotate, and at the same time the telescopic column drives the support plate to descend, and the grouting pipe is falling Simultaneous rotation effectively realizes the convenient placement of the grouting pipe.

Description

A grouting device for coal mine water disaster prevention and control

technical field

The utility model relates to the technical field of coal mine water disaster prevention and control, in particular to a grouting device for coal mine water disaster prevention and control.

Background technique

Coal mine floods affect the progress and quality of mine construction, worsen the working environment of workers, increase the drainage facilities and drainage costs of mines, and bring unsafe factors to coal mine production. In severe cases, well flooding accidents even occur, causing major loss of life and property. Losses, in the process of coal mining, it is very easy to communicate with water accumulation in old cellars, water leakage accidents in car-making mines, and water damage accidents in coal mines will also lead to erosion and weakening of surrounding rocks, induce secondary disasters, damage water resources, and reduce resource recovery rate, tons The cost of coal drainage remains high, and the hydrogeological conditions of my country's coal fields are complex. At present, about 18% of the coal reserves to be mined in my country are threatened by serious water damage. It is of important and urgent practical significance to prevent and control them.

The sealing performance of the existing grouting hole is poor, and when the grouting casing enters the drilled ground hole, it is also easily blocked, which affects the grouting work. During the grouting work, the grouting hole is easy to be blocked, which affects the grouting efficiency and increases Large workers work harder and increase working hours.

A Chinese patent on a coal mine water disaster prevention and control device (authorized announcement number: CN205206784U) uses barbs to solve the problem of smoothness, but when the grouting sleeve is pulled out, the barbs will have greater resistance.

Contents of the invention

The utility model solves the technical problem that the grouting casing is easily blocked when it enters the ground hole that has been drilled, and the grouting hole is easily blocked during the grouting work, which affects the grouting efficiency, and provides a coal mine water disaster prevention and control system. Grouting device.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: a grouting device for the prevention and control of coal mine water damage, including a grouting pipe, and several one-way solenoid valves are sequentially arranged on the side wall of the grouting pipe from top to bottom, The top of the grouting pipe is connected with a grouting hose; the upper part of the grouting pipe is rotatably connected with a support plate arranged horizontally, and the two ends of the support plate are fixedly connected with telescopic columns arranged vertically; A first gear is sheathed, and a second gear meshes on the right side of the first gear. A rotating shaft is fixedly connected to the lower side of the second gear. The rotating shaft is connected to a motor, and the motor is fixedly arranged on the support plate.

When using the grouting device, the telescopic column is fixedly connected to the ground, and the grouting pipe enters the hole. When the grouting pipe enters the gap and is blocked, start the motor, and the motor drives the shaft to rotate. The shaft drives the second gear to rotate, and the second gear drives the first gear. Rotate, the first gear drives the grouting pipe to rotate, and at the same time the telescopic column drives the support plate to descend, then the grouting pipe rotates while descending, effectively realizing the convenient placement of the grouting pipe. Carry out grouting work, open the one-way solenoid valve, the grouting liquid enters the gap from the one-way solenoid valve for grouting treatment, but the grouting liquid will not flow into the grouting pipe in reverse, and the smooth progress of the grouting work is realized.

Compared with the prior art, the utility model has the following beneficial effects:

The grouting liquid of the grouting device of the utility model enters the gap from the one-way electromagnetic valve for grouting treatment, but the grouting liquid will not flow into the grouting pipe in reverse, so that the grouting work can be carried out smoothly; the first gear drives the grouting pipe Rotate, at the same time make the telescopic column drive the support plate to descend, then the grouting pipe rotates while descending, effectively realizing the convenient placement of the grouting pipe. The utility model has the advantages of reasonable structural design, convenient grouting, no backflow and smooth descent, etc., and has certain popularization and application value.

Description of drawings

Figure 1 is a sectional view of a grouting device for water disaster prevention and control in coal mines.

The markings in the figure are as follows:

1-ground, 2-pore, 3-grouting pipe, 4-one-way solenoid valve, 5-telescopic column, 6-support plate, 7-first gear, 8-first bearing, 9-grouting hose, 10- The second gear, 11-rotating shaft, 12-motor, 13-second bearing.

Detailed ways

Below in conjunction with specific embodiment the utility model is further described.

Example 1

As shown in Fig. 1, a kind of grouting device that is used for the prevention and control of coal mine water damage comprises a grouting pipe 3, and several one-way solenoid valves 4 are arranged in turn on the side wall of the grouting pipe 3 from top to bottom, and the top of the grouting pipe 3 is connected with a grouting The hose 9; the upper part of the grouting pipe 3 is rotatably connected with a horizontally arranged support plate 6, and the two ends of the support plate 6 are fixedly connected with a vertical telescopic column 5; The fixed sleeve is provided with a first gear 7, the right side of the first gear 7 is meshed with a second gear 10, the lower side of the second gear 10 is fixedly connected with a rotating shaft 11, and the rotating shaft 11 is connected with a motor 12, and the motor 12 is fixedly arranged on on the support plate 6.

A first bearing 8 is fixedly connected to the top of the grouting pipe 3 , and a grouting hose 9 is fixedly connected to the inner ring of the first bearing 8 .

The bottom of the grouting pipe 3 is conical, so that the grouting pipe 3 enters the hole 2 of the ground 1 that has been drilled and is not easily blocked.

A second bearing 13 is provided between the grouting pipe 3 and the support plate 6 . The inner ring of the second bearing 13 is fixedly sleeved on the outside of the grouting pipe 3 , and the outer ring of the second bearing 13 is connected with the support plate 6 .

Four one-way solenoid valves 4 are arranged on the side wall of the grouting pipe 3 from top to bottom, and the one-way solenoid valves 4 are all connected with the control switch circuit.

The telescopic column 5 is an electric push rod or a hydraulic telescopic column; it can be used depending on the on-site working environment. When using a grouting device, the bottom end of the telescopic column 5 is fixedly connected to the ground.

When the grouting pipe 3 enters the gap 2 of the ground 1, the grouting work is performed, the one-way solenoid valve 4 is opened, and the grouting liquid enters the gap 2 from the one-way solenoid valve 4 for grouting, but the grouting liquid will not reverse It flows into the grouting pipe 3, realizing the smooth progress of the grouting work; when the grouting pipe 3 enters the gap 2 and is blocked, the motor 12 is started, and the motor 12 drives the rotating shaft 11 to rotate, and the rotating shaft 11 drives the second gear 10 to rotate, and the second gear 10 Drive the first gear 7 to rotate, the first gear 7 drives the grouting pipe 3 to rotate, and the telescopic column 5 drives the support plate 6 to descend simultaneously, then the grouting pipe 3 rotates while descending, effectively realizing the convenient placement of the grouting pipe 3.

Claims (6)

1. A grouting device for water disaster prevention in coal mines, characterized in that it includes a grouting pipe (3), and several one-way solenoid valves (4) are sequentially arranged on the side wall of the grouting pipe (3) from top to bottom. The top of the pipe (3) is connected with a grouting hose (9); the upper part of the grouting pipe (3) is rotatably connected with a support plate (6) arranged horizontally, and the two ends of the support plate (6) are fixedly connected with a vertically arranged The telescopic column (5); the first gear (7) is provided on the part of the fixed sleeve located on the upper part of the support plate (6) on the grouting pipe (3), and the second gear (10) is meshed on the right side of the first gear (7). A rotating shaft (11) is fixedly connected to the lower side of the second gear (10), the rotating shaft (11) is connected to a motor (12), and the motor (12) is fixedly arranged on the support plate (6). 2. A grouting device for coal mine water disaster prevention and control according to claim 1, characterized in that: the top of the grouting pipe (3) is fixedly connected with a first bearing (8), and the inner ring of the first bearing (8) A grouting hose (9) is fixedly connected. 3. A grouting device for coal mine water disaster prevention and control according to claim 1 or 2, characterized in that the bottom of the grouting pipe (3) is conical. 4. A grouting device for coal mine water disaster prevention and control according to claim 1 or 2, characterized in that: a second bearing (13) is arranged between the grouting pipe (3) and the support plate (6) ; The inner ring of the second bearing (13) is fixedly sleeved on the outside of the grouting pipe (3), and the outer ring of the second bearing (13) is connected to the support plate (6). 5. A grouting device for preventing and controlling coal mine water damage according to claim 1 or 2, characterized in that four one-way solenoid valves (4) are arranged on the side wall of the grouting pipe (3) from top to bottom. 6. A grouting device for coal mine water disaster prevention and control according to claim 1 or 2, characterized in that: the telescopic column (5) is an electric push rod or a hydraulic telescopic column.