Auxiliary device for fracture treatment of underground tunneling roadway support body of metal mine

Abstract

The utility model discloses an auxiliary device for fracture treatment of a metal mine underground tunneling roadway support body, which comprises a cylindrical storage bin, the storage bin is vertically arranged, the bottom of the storage bin is connected with supporting legs, and the storage bin is used for storing materials to be repaired; the top of the storage bin is open and is detachably connected with a sealing cover plate, a nozzle-shaped discharge port is formed in the bottom of the storage bin, and a discharge valve and a flexible material injection pipe are connected to the discharge port; an air pressure assembly is arranged on the upper portion of the bin wall of the storage bin and used for providing air pressure for the interior of the storage bin so that materials in the storage bin can be discharged from the discharging port at a high speed. The wet concrete guniting machine is used for fracture treatment work of the underground tunneling roadway support body of the metal mine, the problems that raw materials of the wet concrete guniting machine are wasted and flexibility is insufficient are effectively solved, cost loss is reduced, and working efficiency of fracture treatment of the underground tunneling roadway support body is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of underground mine support technology, specifically relating to an auxiliary device for crack treatment of support structures in underground tunnels of metal mines. Background Technology

[0002] The support strength of underground tunnel supports in metal mines is affected by changes in rock stress. With the accumulation of rock displacement and deformation, gaps may form between the support and the original rock, or the support may crack under stress, thus reducing its support strength and posing a risk of sudden collapse. This, in turn, affects the normal construction and operation of underground tunnels in metal mines. Currently, underground tunnel construction in metal mines adopts a large-scale mechanized production model. Shotcreting of the support is done using wet concrete shotcrete machines. However, for the treatment of cracks in the support, the use of wet concrete shotcrete machines is problematic because they cannot precisely control the flow rate, resulting in significant material waste. Furthermore, the large size and lack of flexibility of wet concrete shotcrete machines make it impossible to flexibly repair and treat multiple cracks in the support of underground tunnel supports. Therefore, it is necessary to develop an auxiliary device for treating cracks in the support of underground tunnels in metal mines to solve this problem. Utility Model Content

[0003] This utility model provides an auxiliary device for treating cracks in the support structure of underground tunnels in metal mines. The purpose is to solve the problem that existing wet concrete spraying machines are too large and lack flexibility, making it impossible to flexibly repair and treat multiple cracks in the support structure of underground tunnels in mines.

[0004] An auxiliary device for treating cracks in the support structure of underground tunnels in metal mines includes a cylindrical storage bin, which is placed vertically and connected to a support leg at the bottom. The storage bin is used to store materials to be repaired.

[0005] The top of the storage silo is open and detachably connected to a sealing cover. The bottom forms a spout-shaped discharge port, which is connected to a discharge valve and a flexible material injection pipe. The upper part of the storage silo wall is equipped with a wind pressure assembly, which is used to provide air pressure inside the storage silo so that the material inside the storage silo can be discharged from the discharge port at high speed.

[0006] Furthermore, the air pressure assembly includes an air inlet pipe, an air control valve, and an air pressure gauge. An air inlet is provided on the upper part of the storage silo wall, and the first end of the air inlet pipe is connected to the air inlet. The air control valve and the air pressure gauge are connected to the air inlet pipe, and the last end of the air inlet pipe is connected to the air pressure source.

[0007] Furthermore, a sealing ring is fitted around the edge of the sealing cover, and multiple fastening buckles are connected to the upper part of the storage silo wall. The fastening buckles are used to press the sealing cover tightly against the top of the storage silo.

[0008] The beneficial effects of this utility model are:

[0009] This utility model is used for the treatment of cracks in the support structure of underground tunnels in metal mines. It effectively solves the problems of material waste and lack of flexibility of wet concrete spraying machines, reduces cost losses, and effectively improves the efficiency of crack treatment in underground tunnel support structures. This utility model has a compact structure, simple principle, is easy to process, low cost, and good performance. It facilitates the treatment of cracks in the support structure of underground tunnels in metal mines, effectively ensures the strength of the support structure, and is highly practical. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] In the diagram: 1-Sealing cover plate, 2-Sealing ring, 3-Fastening buckle, 4-Air control valve, 5-Air inlet pipe, 6-Air pressure gauge, 7-Storage silo, 8-Discharge port, 9-Injection pipe, 10-Discharge valve, 11-Support leg. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0013] like Figure 1 As shown, an auxiliary device for treating cracks in the support structure of underground tunnels in metal mines includes a cylindrical storage bin 7, which is placed vertically and connected to a support leg 11 at the bottom. The storage bin 7 is used to store materials to be repaired.

[0014] The top of the storage silo 7 is open and detachably connected to a sealing cover plate 1, and the bottom forms a spout-shaped discharge port 8. The discharge port 8 is connected to a discharge valve 10 and a flexible material injection pipe 9. The upper part of the wall of the storage silo 7 is equipped with a wind pressure assembly, which is used to provide wind pressure to the storage silo 7 so that the material in the storage silo 7 is discharged from the discharge port 8 at high speed.

[0015] The air pressure assembly includes an air inlet pipe 5, an air control valve 4, and an air pressure gauge 6. An air inlet is located on the upper part of the storage silo 7 wall, and the first end of the air inlet pipe 5 is connected to the air inlet. The air control valve 4 and the air pressure gauge 6 are connected to the air inlet pipe 5, and the last end of the air inlet pipe 5 is connected to an air pressure source. A sealing ring 2 is fitted around the edge of the sealing cover plate 1, and multiple fastening clips 3 are connected to the upper part of the storage silo 7 wall. The fastening clips 3 are used to press the sealing cover plate 1 tightly against the top of the storage silo 7.

[0016] The method of using this utility model is as follows:

[0017] First, add the mixed slurry to the storage bin 7 with a shovel. Then, attach the sealing cover 1 to the lower sealing ring 2. Use the fastening buckles 3 on both sides of the storage bin 7 to fasten the sealing cover 1, thus sealing the storage bin 7. Place the device near the support structure that needs treatment and use the support legs 11 to keep the device stable. Connect the discharge port 8 to the injection pipe 9, and then open the valve of the discharge port 8. Control the air control valve 4 according to the size of the cracks in the support structure. By observing the air pressure gauge 6, make the air pressure reach the set air pressure value. Then, use the injection pipe 9 to repair and treat various cracks in the roadway support structure, so that the support structure can be restored to its original support strength.

Claims

1. An auxiliary device for treating cracks in the support structure of underground tunnels in metal mines, characterized in that, Includes a cylindrical storage bin (7), which is placed vertically and has a support leg (11) connected to the bottom. The storage bin (7) is used to store materials to be repaired. The top of the storage silo (7) is open and detachably connected to a sealing cover (1), and the bottom forms a spout-shaped discharge port (8). The discharge port (8) is connected to a discharge valve (10) and a flexible material injection pipe (9). The upper part of the storage silo (7) wall is provided with a wind pressure assembly, which is used to provide wind pressure to the storage silo (7) so that the material in the storage silo (7) is discharged at high speed from the discharge port (8).

2. The auxiliary device for treating cracks in the support structure of underground tunnels in metal mines according to claim 1, characterized in that, The air pressure assembly includes an air inlet pipe (5), an air control valve (4), and an air pressure gauge (6). The upper part of the storage silo (7) is provided with an air inlet, and the head end of the air inlet pipe (5) is connected to the air inlet. The air control valve (4) and the air pressure gauge (6) are connected to the air inlet pipe (5), and the tail end of the air inlet pipe (5) is connected to the air pressure source.

3. The auxiliary device for treating cracks in the support structure of underground tunnels in metal mines according to claim 1, characterized in that, The sealing cover (1) is fitted with a sealing ring (2) on its edge. The upper part of the storage bin (7) is connected with multiple fastening buckles (3). The fastening buckles (3) are used to press the sealing cover (1) onto the top of the storage bin (7).

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