Mine vertical tailing filling pipe repairing device and method

Abstract

The invention discloses a mine vertical tailing filling pipe repairing device and method.The repairing device comprises an air bag, an air bag inflation mechanism, a repairing grouting pipe, a repairing grouting mechanism and an exhaust pipe, an inflation nozzle is arranged on the air bag, the air bag inflation mechanism is connected with the inflation nozzle, the repairing grouting pipe and the exhaust pipe are both fixedly connected with the air bag, and the air bag inflation mechanism is connected with the air bag inflation mechanism. And the repairing and grouting mechanism is connected with the repairing and grouting pipe. By means of the repairing device and method, the convenience and efficiency of repairing the filling pipe wall are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of tailings filling, and particularly relates to a repairing device and method for a vertical tailings filling pipe in a mine. Background Art

[0002] In the process of exploitation and utilization of mineral resources, a large amount of solid waste is inevitably generated. Mines reduce the occurrence of underground stope collapse accidents and environmental pollution caused by waste by re-filling the remaining solid waste into the underground stopes. Among them, paste (tailings) filling mainly mixes one or more solid wastes, cement and water in a certain proportion under certain conditions to prepare a paste-like slurry with certain stability, fluidity and plasticity, and under the action of external force or gravity, in the form of plug flow, it is transported to the underground goaf through a pipeline to complete the filling operation. The paste filling technology provides the best way for the disposal of solid waste. It not only turns waste into treasure, but also the filling body provides a supporting role for the goaf, ensuring the safety of the mining process, reducing the loss and dilution of ore, and improving the utilization rate of mineral resources.

[0003] Common tailings filling structures, such as Figure 1 As shown, it includes a filling borehole 1, a filling pipe protection sleeve 2 placed in the filling borehole, and a filling pipe 4 placed in the filling pipe protection sleeve. A grouting fixing layer 3 is filled between the filling borehole and the filling pipe protection sleeve. A underground chamber 7 is constructed at the bottom of the filling borehole. A buffer tank 5 is arranged in the underground chamber. The bottom of the filling pipe is connected to the buffer tank, and the buffer tank is connected to a pulp conveying pipe 6. During operation, the filling material in the filling pipe is decompressed through the buffer tank and then transported to each goaf to be filled through the pulp conveying pipe for filling operation.

[0004] Due to the different elevations and lengths of each goaf, after a period of filling operation, a "back line" is formed in the filling pipe. Combined with the impact of the vertical falling of the filling material, the walls of the filling pipe and the filling pipe protection sleeve are worn and perforated. If not repaired in time, it will eventually lead to caving, block the filling pipe, and cause the filling pipe to be scrapped.

[0005] The currently common repair method is to take out the entire filling pipe and then repair the perforated part of the filling pipe wall. This repair method is cumbersome and inefficient. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a repairing device and method for a vertical tailings filling pipe in a mine to improve the convenience and efficiency of repairing the filling pipe wall.

[0007] The present invention solves the above problems through the following technical means: A repair device for a mine vertical tailings filling pipe, comprising an airbag, an airbag inflation mechanism, a repair grouting pipe, a repair grouting mechanism, and an exhaust pipe. An inflation nozzle is provided on the airbag, the airbag inflation mechanism is connected to the inflation nozzle, the repair grouting pipe and the exhaust pipe are both fixedly connected to the airbag, and the repair grouting mechanism is connected to the repair grouting pipe.

[0008] Further, the airbag inflation mechanism includes an air compressor and an inflation pipe, and the air compressor is connected to the inflation nozzle through the inflation pipe.

[0009] Further, the repair grouting mechanism includes a grouting machine and a slurry delivery pipe, and the grouting machine is connected to the repair grouting pipe through the slurry delivery pipe.

[0010] Further, an inflation valve is provided on the inflation pipe.

[0011] Further, a slurry delivery valve is provided on the slurry delivery pipe.

[0012] Further, a drainage pipe is connected to the exhaust pipe.

[0013] Further, the inflation pipe and the inflation nozzle, the slurry delivery pipe and the repair grouting pipe, and the drainage pipe and the exhaust pipe are all connected through quick-change joints.

[0014] A repair method using the above-mentioned repair device for a mine vertical tailings filling pipe. First, use a pipeline mirror to accurately measure the position of the break hole of the filling pipe, then lower the airbag to the position of the break hole so that both the repair grouting pipe and the exhaust pipe are aligned with the break hole. Then, inject compressed air into the airbag. After the airbag expands to a state where it can be stabilized inside the filling pipe, close the inflation valve. Subsequently, grout into the break hole until the slurry drains out of the drainage pipe and then stop grouting. After the repair slurry solidifies, deflate and recover the airbag.

[0015] Advantages of the present invention:

[0016] The present invention provides a repair device and method for a mine vertical tailings filling pipe. The repair device includes an airbag, an airbag inflation mechanism, a repair grouting pipe, a repair grouting mechanism, and an exhaust pipe. An inflation nozzle is provided on the airbag, the airbag inflation mechanism is connected to the inflation nozzle, the repair grouting pipe and the exhaust pipe are both fixedly connected to the airbag, and the repair grouting mechanism is connected to the repair grouting pipe. By using the repair device and method of the present application, the convenience and efficiency of repairing the filling pipe wall are improved. Description of the Drawings

[0017] The following further describes the present invention in conjunction with the drawings and embodiments.

[0018] Figure 1 It is a schematic structural diagram of the present invention;

[0019] Figure 2 is a partial schematic diagram of the present invention;

[0020] Figure 3 is another partial schematic diagram of the present invention. Specific Embodiments

[0021] The present invention will be described in detail below with reference to the accompanying drawings. As Figures 1 to 3 shown: This embodiment provides a repair device for a mine vertical tailings filling pipe, which includes an airbag 9, an airbag inflation mechanism, a repair grouting pipe 17, a repair grouting mechanism, and an exhaust pipe 18. An inflation nozzle 19 is provided on the airbag. The airbag inflation mechanism is connected to the inflation nozzle. The repair grouting pipe and the exhaust pipe are both fixedly connected to the airbag. The repair grouting mechanism is connected to the repair grouting pipe.

[0022] Specifically, the airbag inflation mechanism includes an air compressor 12 and an inflation pipe 10. The air compressor is connected to the inflation nozzle through the inflation pipe. When the air compressor is started, the airbag can be inflated through the inflation pipe and the inflation nozzle. Preferably, an inflation valve 11 is provided on the inflation pipe, and the inflation state can be controlled through the inflation valve.

[0023] The repair grouting mechanism includes a grouting machine 15 and a slurry delivery pipe 13. The grouting machine is connected to the repair grouting pipe through the slurry delivery pipe. When the grouting machine is started, the damaged hole 8 in the filling pipe wall can be repaired by grouting through the slurry delivery pipe and the repair grouting pipe. Preferably, a slurry delivery valve 14 is provided on the slurry delivery pipe, and the slurry delivery state can be controlled through the slurry delivery valve.

[0024] Preferably, the exhaust pipe is connected with a drainage pipe 16. Whether the repair state can be judged by whether the drainage pipe discharges slurry. When slurry flows out of the drainage pipe, it indicates that the damaged hole has been filled with slurry.

[0025] As a further improvement to the above technical solution, the inflation pipe and the inflation nozzle, the slurry delivery pipe and the repair grouting pipe, and the drainage pipe and the exhaust pipe are all connected through quick-change joints 20 to improve the convenience of installation and disassembly.

[0026] This embodiment also provides a repair method using the above-mentioned repair device for a mine vertical tailings filling pipe. First, use a pipeline mirror to accurately measure the position of the damaged hole 8 in the filling pipe, then lower the airbag to the position of the damaged hole, align both the repair grouting pipe and the exhaust pipe with the damaged hole, then inject compressed air into the airbag. After the airbag expands to a state where it can be stabilized in the filling pipe, close the inflation valve. Subsequently, grout into the damaged hole until the slurry stops flowing out of the drainage pipe. After the repair slurry solidifies, deflate and recover the airbag.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A repair device for a vertical tailings filling pipe in a mine, characterized in that: It includes an airbag, an airbag inflation mechanism, a repair grouting pipe, a repair grouting mechanism and an exhaust pipe. An inflation nozzle is provided on the airbag. The airbag inflation mechanism is connected to the inflation nozzle. The repair grouting pipe and the exhaust pipe are both fixedly connected to the airbag. The repair grouting mechanism is connected to the repair grouting pipe.

2. The mine vertical tailings filling pipe repair device according to claim 1, characterized in that: The airbag inflation mechanism includes an air compressor and an inflation pipe. The air compressor is connected to the inflation nozzle through the inflation pipe.

3. The mine vertical tailings filling pipe repair device according to claim 2, characterized in that: The repair grouting mechanism includes a grouting machine and a slurry delivery pipe. The grouting machine is connected to the repair grouting pipe through the slurry delivery pipe.

4. The mine vertical tailings filling pipe repair device according to claim 3, characterized in that: An inflation valve is provided on the inflation pipe.

5. The mine vertical tailings filling pipe repair device according to claim 4, characterized in that: A slurry delivery valve is provided on the slurry delivery pipe.

6. The mine vertical tailings filling pipe repair device according to claim 5, characterized in that: The exhaust pipe is connected with a drainage pipe.

7. The mine vertical tailings filling pipe repair device according to claim 6, characterized in that: The inflation pipe and the inflation nozzle, the slurry delivery pipe and the repair grouting pipe, and the drainage pipe and the exhaust pipe are all connected through quick-change joints.

8. A repair method using the mine vertical tailings filling pipe repair device as described in claim 7, characterized in that: First, use a pipeline mirror to accurately measure the position of the break hole of the filling pipe, then lower the airbag to the position of the break hole so that both the repair grouting pipe and the exhaust pipe are aligned with the break hole. Then inject compressed air into the airbag. After the airbag expands to a state where it can be stabilized in the filling pipe, close the inflation valve. Subsequently, grout into the break hole until the slurry is discharged from the drainage pipe and then stop grouting. After the repair slurry solidifies, deflate and recover the airbag.

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