Deep under-pressure mining working face top and bottom plate water disaster monitoring equipment

Abstract

The utility model relates to the technical field of mine safety, in particular to a deep under-pressure mining working face roof and floor water disaster monitoring device which comprises an outer pipe and an inner pipe, one end of the outer pipe extends into a rock stratum, and the other end of the outer pipe is integrally connected with a fixing plate. One end of the inner pipe extends into the outer pipe, and the other end of the inner pipe is sleeved with a connecting ring which can be in threaded connection in the outer pipe; a plurality of pressure sensors and a plurality of humidity sensors are arranged on the side face of the inner pipe, and a plurality of water permeable holes are formed in the outer pipe. A protective ring is arranged at the outer end of the connecting ring, a cover plate is arranged at the outer end of the protective ring, and an opening is formed in one side of the protective ring and used for a connecting line of the pressure sensor and the humidity sensor to pass through; and a wiring terminal is arranged on the fixing plate. According to the utility model, the water disaster monitoring of the top and bottom plates of the deep under-pressure mining working face can be better realized.

Description

Technical Field

[0001] This utility model relates to the field of mine safety technology, specifically to a water hazard monitoring device for the roof and floor of a deep pressurized mining face. Background Technology

[0002] Pressurized mining refers to mining operations conducted without dewatering measures when the thickness of the aquitard is slightly greater than the critical aquitard thickness, or the water pressure is slightly less than the critical water pressure, provided that the floor or roof has a confined aquitard. As shallow coal resources are gradually depleted and coalfield mining continues to extend deeper, the impact of floor water hazards is becoming increasingly severe. Therefore, monitoring water hazards in the roof and floor of the mining face is crucial.

[0003] For example, a mine water hazard monitoring and early warning device disclosed in patent CN216477478U, although it has a monitoring pipe installed at the bottom of the mine to measure the humidity and pressure in the rock strata at the bottom of the mine, can achieve an effective water hazard monitoring effect; however, the wiring pipe in the mine water hazard monitoring and early warning device is inserted between the first and second reinforcing rings and is filled with concrete, which makes the wiring pipe fixed, inconvenient to install, and impossible to disassemble and repair. Moreover, the position of the sensor inside is fixed, and the monitoring effect will be poor. Utility Model Content

[0004] The purpose of this invention is to provide a water hazard monitoring device for the roof and floor of a deep pressurized mining face, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] The water hazard monitoring equipment for the roof and floor of a deep pressurized mining face includes an outer pipe and an inner pipe. One end of the outer pipe extends into the rock strata, and the other end is integrally connected to a fixing plate. One end of the inner pipe extends into the outer pipe, and the other end is fitted with a connecting ring that can be threaded into the outer pipe. The inner pipe is equipped with multiple pressure sensors and multiple humidity sensors on its side, and the outer pipe is equipped with multiple water-permeable holes.

[0007] The outer end of the connecting ring is provided with a protective ring, the outer end of the protective ring is provided with a cover plate, and one side of the protective ring is provided with an opening for the connection wires of the pressure sensor and humidity sensor to pass through; the fixing plate is provided with wiring terminals.

[0008] Preferably, an outer abutment block is provided on the inner wall of the outer tube, and an inner abutment block is provided on the side of the inner tube. An outer inclined groove is provided on the side wall of the outer abutment block along its circumference, and an inner inclined surface is provided on the inner abutment block that abuts against the outer inclined surface.

[0009] Preferably, the inner tube has multiple through holes on its side, and the pressure sensor and humidity sensor are installed at the corresponding through holes, which are used for connecting wires to pass through.

[0010] Preferably, the connecting ring is provided with an external thread, and the outer tube opening is provided with an internal thread, with the external thread and the internal thread engaging.

[0011] Preferably, a fastening nut is fitted onto the connecting ring.

[0012] Preferably, the fixing plate is secured by multiple screws.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. It can effectively facilitate the installation and removal of the inner tube within the outer tube, making it convenient for maintenance of the inner tube. The inner tube can be loosened, rotated, and then fixed, allowing adjustment of the positions of the pressure and humidity sensors. This is beneficial for subsequent monitoring, analysis, and early warning of water hazards in the roof and floor of deep pressurized mining faces.

[0015] 2. The protective ring, cover plate, and wiring terminals make the wiring of the pressure sensor and humidity sensor very convenient and well protected, preventing the wiring from becoming messy. Attached Figure Description

[0016] Figure 1 This is a cross-sectional schematic diagram of a water hazard monitoring device for the top and bottom plates of a deep pressurized mining face according to this utility model. Detailed Implementation

[0017] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative of this utility model and are not intended to limit it.

[0018] like Figure 1 As shown in the figure, this embodiment provides a water hazard monitoring device for the roof and floor of a deep pressurized mining face, which includes an outer pipe 100 and an inner pipe 110. One end of the outer pipe 100 extends into the rock strata, and the other end is integrally connected to a fixing plate 120. One end of the inner pipe 110 extends into the outer pipe 100, and the other end is fitted with a connecting ring 130, which can be threaded into the outer pipe 100. Multiple pressure sensors 140 and multiple humidity sensors 150 are provided on the side of the inner pipe 110, and multiple water-permeable holes 101 are provided on the outer pipe 100.

[0019] The outer end of the connecting ring 130 is provided with a protective ring 160, the outer end of the protective ring 160 is provided with a cover plate 161, and one side of the protective ring 160 is provided with an opening 162 for the connection wires of the pressure sensor 140 and the humidity sensor 150 to pass through; the fixing plate 120 is provided with a wiring terminal 170.

[0020] In practical use, this embodiment requires drilling holes in the top and bottom plates of the mining face for installing the outer tube 100. The inner tube 110 is located inside the outer tube 100. The pressure sensor 140 and humidity sensor 150 are installed on the inner tube 110. They are connected to the outer tube 100 by a threaded connection through a connecting ring 130. The two can be easily fixed and easily separated. In this way, the pressure sensor 140 and humidity sensor 150 can be easily installed, disassembled and repaired, and the pressure sensor 140 and humidity sensor 150 can be protected.

[0021] The opening 162 on the protective ring 160 is used for the connection wires of the pressure sensor 140 and the humidity sensor 150 to pass through. In this way, the outside can easily connect to the pressure sensor 140 and the humidity sensor 150, and the connection wires can be protected. The terminal 170 can facilitate the connection of the connection wires, so that the connection wires are not messy, and can also restrict the connection wires.

[0022] Since the inner tube 110 can rotate, it can be rotated and then fixed in actual use. This can change the position of the pressure sensor 140 and the humidity sensor 150, which is more conducive to the monitoring, analysis and early warning of water hazards in the roof and floor of the deep pressurized mining face.

[0023] Pressure sensor 140 and humidity sensor 150 can measure water pressure and water vapor in the top and bottom rock strata of the mining face. In actual use, pressure sensor 140 and humidity sensor 150 are connected to the early warning terminal through a transmission line passing through the inner pipe 110, which facilitates the staff to analyze the data and issue early warnings. The pressure sensor 140, humidity sensor 150, transmission line and early warning terminal all adopt the structure disclosed in the patent with publication number CN216477478U, so they will not be described in detail.

[0024] The permeable holes 101 allow water to enter the rock strata at the top and bottom of the mining face, facilitating data collection by the pressure and humidity sensors.

[0025] An outer abutment block 102 is provided on the inner wall of the outer tube 100, and an inner abutment block 111 is provided on the side of the inner tube 110. An outer inclined groove is provided on the side wall of the outer abutment block 102 along its circumference, and an inner inclined surface is provided on the inner abutment block 111 that abuts against the outer inclined surface.

[0026] The cooperation between the outer abutment block 102 and the inner abutment block 111 can fix the inner tube 110, support the inner tube 110, and prevent the inner tube 110 from becoming unstable.

[0027] The inner tube 110 has multiple through holes 112 on its side. The pressure sensor 140 and the humidity sensor 150 are installed at the corresponding through holes 112. The through holes 112 are used for connecting wires to pass through.

[0028] The through hole 112 allows the connection wires of the pressure sensor 140 and the humidity sensor 150 to pass through easily.

[0029] The connecting ring 130 is provided with an external thread, and the outer tube 100 is provided with an internal thread at the tube opening. The external thread and the internal thread are engaged.

[0030] A fastening nut 180 is fitted onto the connecting ring 130.

[0031] The combination of external and internal threads makes the connection between the outer tube 100 and the inner tube 110 very stable, and the setting of the fastening nut 180 makes the inner tube 110 difficult to rotate.

[0032] The fixing plate 120 is fixed by multiple screws 121.

[0033] The working principle of this embodiment: Water pressure and water vapor in the top and bottom rock strata of the mining face can be measured by pressure sensor 140 and humidity sensor 150 respectively. The measurement data can be transmitted to the early warning terminal via a transmission line, facilitating data analysis and early warning by the staff. During measurement, the fastening nut 180 and connecting ring 130 can be loosened, the positions of pressure sensor 140 and humidity sensor 150 can be adjusted, and then they can be fixed again, which allows for better analysis and early warning. When it is necessary to disassemble and repair the inner tube 110, loosen the fastening nut 180 and then loosen the connecting ring 130. At this time, the inner tube 110 can be easily removed for repair. Note that when removing the inner tube 110, the pressure sensor 140 and humidity sensor 150 should not come into contact with the outer abutment block 102 and the inner abutment block 111.

[0034] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A water hazard monitoring device for the roof and floor of a deep pressurized mining face, characterized in that: It includes an outer tube (100) and an inner tube (110). One end of the outer tube (100) extends into the rock stratum, and the other end is integrally connected to a fixing plate (120). One end of the inner tube (110) extends into the outer tube (100), and the other end is fitted with a connecting ring (130), which can be threaded into the outer tube (100). The inner tube (110) is provided with multiple pressure sensors (140) and multiple humidity sensors (150) on its side, and the outer tube (100) is provided with multiple water-permeable holes (101). The outer end of the connecting ring (130) is provided with a protective ring (160), the outer end of the protective ring (160) is provided with a cover plate (161), and one side of the protective ring (160) is provided with an opening (162) for the connection wires of the pressure sensor (140) and the humidity sensor (150) to pass through; the fixing plate (120) is provided with a terminal block (170).

2. The water hazard monitoring equipment for the roof and floor of a deep pressurized mining face according to claim 1, characterized in that: An outer abutment block (102) is provided on the inner wall of the outer tube (100), and an inner abutment block (111) is provided on the side of the inner tube (110). An outer inclined groove is provided on the side wall of the outer abutment block (102) along its circumference, and an inner inclined surface is provided on the inner abutment block (111) that abuts against the outer inclined surface.

3. The water hazard monitoring equipment for the roof and floor of a deep pressurized mining face according to claim 2, characterized in that: The inner tube (110) has multiple through holes (112) on its side. The pressure sensor (140) and humidity sensor (150) are installed at the corresponding through holes (112). The through holes (112) are used for connecting wires to pass through.

4. The water hazard monitoring equipment for the roof and floor of a deep pressurized mining face according to claim 3, characterized in that: The connecting ring (130) is provided with an external thread, and the outer tube (100) is provided with an internal thread at the pipe opening. The external thread and the internal thread are matched.

5. The water hazard monitoring equipment for the roof and floor of a deep pressurized mining face according to claim 4, characterized in that: A fastening nut (180) is fitted onto the connecting ring (130).

6. The water hazard monitoring equipment for the roof and floor of a deep pressurized mining face according to claim 5, characterized in that: The fixing plate (120) is fixed by multiple screws (121).

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