Mine environment isolation spraying device

Abstract

The utility model discloses an isolation spraying device for a mine environment. The isolation spraying device comprises a compressed air tank, a pressure-resistant water tank and a spraying assembly, a connecting pipeline is connected between an outlet of the compressed air tank and an inlet of the pressure-resistant water tank, a connecting pipeline is connected between an outlet of the pressure-resistant water tank and the spraying assembly, high-pressure air in the compressed air tank is used for pushing water in the pressure-resistant water tank to enter the spraying assembly, and the spraying assembly is used for spraying mist into a mine. The multiple spraying assemblies are arranged along the rock wall or the ground of the mine. The spraying assembly comprises a spraying main pipe, and spraying connectors are densely distributed on the spraying main pipe; the head ends of the spraying main pipes are connected with inlet flexible pressure-resistant pipes and quick-insertion male heads, the tail ends of the spraying main pipes are connected with outlet flexible pressure-resistant pipes and quick-insertion female heads, and the adjacent spraying main pipes are communicated through the quick-insertion male heads and the quick-insertion female heads; a support plate is further connected to the spraying main pipe, a through hole is formed in the top of the support plate, and the support plate is used for being connected with an expansion screw on a rock wall.

Description

Technical Field

[0001] This utility model belongs to the field of mine safety equipment, specifically relating to a mine environment isolation spray device. Background Technology

[0002] During mining operations, equipment malfunctions, fires, or gases produced during ore extraction may lead to the leakage and spread of toxic and harmful gases. In such cases, personnel must be evacuated as quickly as possible, and measures must be taken to slow the spread of the toxic and harmful gases, buying more time and space for evacuation.

[0003] Conventional mine safety facilities typically include an isolation door at regular intervals. When a toxic or harmful gas leak occurs, closing the isolation door isolates the gas, but this also restricts the effective evacuation of personnel. Therefore, in mines, it is essential to provide space for personnel evacuation while isolating the spread of toxic or harmful gases, which is a necessary requirement for ensuring mine environmental safety. Utility Model Content

[0004] This utility model provides a mine environment isolation spray device, which aims to provide space for personnel evacuation when toxic and harmful gases leak in the mine.

[0005] Therefore, the present invention adopts the following technical solution:

[0006] A mine environment isolation spray device includes a compressed air tank, a pressure-resistant water tank, and a spray assembly; a connecting pipeline is connected between the outlet of the compressed air tank and the inlet of the pressure-resistant water tank, and a connecting pipeline is connected between the outlet of the pressure-resistant water tank and the spray assembly; the high-pressure air in the compressed air tank is used to drive the water in the pressure-resistant water tank into the spray assembly, and the spray assembly is used to spray into the mine.

[0007] The spray assembly comprises multiple units, which are installed along the rock wall or ground of the mine. Each spray assembly includes a main spray pipe densely covered with spray connectors. The head end of the main spray pipe is connected to an inlet flexible pressure-resistant pipe and a quick-connect male connector, while the tail end is connected to an outlet flexible pressure-resistant pipe and a quick-connect female connector. Adjacent spray pipes are connected via quick-connect male and female connectors. A support plate is also connected to the main spray pipe, with a through hole at the top. The support plate is used to connect expansion bolts on the rock wall, and the main spray pipe is fixed by the support plate and expansion bolts.

[0008] The technical solution of this utility model is as follows: a mine environment isolation spray device, including a pressurized water source and several spray components connected in series; the pressurized water source includes a compressed air tank, a compressed air hand valve, a pressure-resistant water tank, a pressure-resistant water tank hand valve, a quick-connect female connector, and connecting pipelines; the spray components include a quick-connect male connector, an inlet flexible pressure-resistant pipe, a spray connector, a spray main pipe, several spray straight heads, several spray elbows, an air whistle, a one-way pressure valve, an outlet flexible pressure-resistant pipe, a self-sealing quick-connect female connector for the spray components, and several support plates.

[0009] The compressed air tank is a conventional high-pressure air storage tank with a maximum withstand pressure of 20MPa. It has a compressed air manual valve at the outlet, and the outlet of the compressed air manual valve is connected to the top of the pressure-resistant water tank through a connecting pipeline for pressurizing the pressure-resistant water tank.

[0010] The pressure-resistant water tank contains water (free of particulate impurities) and has an opening on the bottom side. A pressure-resistant water tank hand valve is installed on the opening. The outlet of the pressure-resistant water tank hand valve is connected to a pipeline to deliver the high-pressure water in the tank to the quick-connect female connector. When the quick-connect female connector is not connected to the spray assembly, the quick-connect female connector remains sealed. When the quick-connect female connector is connected to the spray assembly, the high-pressure water enters the spray assembly through the quick-connect female connector.

[0011] The spray assembly is mounted on the rock wall close to the mine tunnel via a bracket plate. A quick-connect male connector connects to a self-sealing quick-connect female connector with a water source. High-pressure water enters the inlet flexible pressure-resistant pipe through the quick-connect male connector, then through the spray connector, and finally into the main spray pipe. Several spray nozzles are installed on both the upper and lower sides of the main spray pipe. The upper spray nozzles point towards the rock wall, and the lower spray nozzles point towards the mine tunnel. The spray nozzles atomize the high-pressure water and spray it towards the rock wall and the mine tunnel respectively. Spray elbows are installed on both the upper and lower sides of the inlet and outlet ends of the main spray pipe. The upper spray elbows point towards the angle between the rock wall and the inlet flexible hose, and the angle between the rock wall and the outlet flexible hose; the lower spray elbows point towards the angle between the mine tunnel and the inlet flexible hose, and the angle between the mine tunnel and the outlet flexible hose, thus achieving full coverage of the spray surface. The spray main pipe... It is also equipped with a gas whistle. When the spray pipe is full of high-pressure water, the gas whistle self-closes. When the pressure tank runs out of water, the high-pressure gas blows the gas whistle to sound a water shortage alarm. After the high-pressure water flows through the spray pipe, it reaches the one-way pressure valve. The one-way pressure valve is set to open at 5MPa pressure. That is, when the pressure in the spray pipe is higher than or equal to 5MPa, the one-way pressure valve opens, and the high-pressure water flows into the outlet flexible pressure-resistant pipe. When the pressure in the spray pipe is lower than 5MPa, the one-way pressure valve closes, and the high-pressure water does not flow into the outlet flexible pressure-resistant pipe. The high-pressure water reaches the self-sealing quick-connect female of the spray assembly through the outlet flexible pressure-resistant pipe. When multiple spray assemblies are used in series, the self-sealing quick-connect female of the spray assembly delivers high-pressure water to the next spray assembly. When only one spray assembly is used, the self-sealing quick-connect female of the spray assembly remains sealed.

[0012] One or more spray units are used together to produce sheet-like water mist. The water mist is continuously produced to form a barrier, isolating toxic and harmful gases and reducing their spread. Evacuation personnel can then freely pass through the water mist to evacuate.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. High-pressure air from a compressed air tank is used as the pressure source for high-pressure water, which does not involve electricity and can be used in explosion-proof areas;

[0015] 2. Multiple spray units are connected in series and can be manually connected via flexible tubes and self-sealing joints, which can easily expand the isolation area;

[0016] 3. By using the gas sentry alarm installed on the main spray pipe, water shortage alarm information can be obtained remotely and water replenishment can be carried out in a timely manner;

[0017] 4. Both the upper and lower sides of the main spray pipe are equipped with spray nozzles and spray elbows, which can form an isolation spray in the gaps between the rock wall and the spray pipe, as well as at the connection between spray components, thereby achieving full spray coverage of the isolated area;

[0018] 5. The single-phase pressure conduction valve installed at the outlet end of the spray main pipe can maintain the minimum spray pressure of the spray main pipe, thereby ensuring the spray effect. When the pressure in the high-pressure air tank is insufficient, it can ensure that the spray components in critical parts maintain an effective spray isolation effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the spray assembly of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of an embodiment;

[0022] In the diagram: Compressed air tank 1-1, compressed air hand valve 1-2, pressure-resistant water tank 1-3, pressure-resistant water tank hand valve 1-4, pressurized water self-sealing quick-connect female connector 1-5, connecting pipeline 1-6;

[0023] 2. Spray assembly, 2-1. Quick-connect male connector, 2-2. Inlet flexible pressure-resistant tube, 2-3. Spray connector, 2-4. Spray main tube, 2-5. Spray straight head, 2-6. Spray elbow, 2-7. Air whistle, 2-8. One-way pressure valve, 2-9. Outlet flexible pressure-resistant tube, 2-10. Self-sealing quick-connect female connector, 2-11. Support plate. Detailed Implementation

[0024] like Figures 1-3As shown in the accompanying drawings, the present invention will be further described in detail below with reference to the embodiments.

[0025] Example 1: Installation of Mine Environmental Isolation Spray Device

[0026] Before installation, fill the compressed air tank 1-1 with 20MPa standard compressed air. Do not use other high-pressure gases. After filling, close the compressed air manual valve 1-2. Fill the pressure-resistant water tank 1-3 with water (free of particulate impurities) and connect the compressed air manual valve 1-2 to the inlet of the pressure-resistant water tank 1-3 using a connecting pipeline.

[0027] Based on the actual conditions of the mine, the installation location and quantity of the spray components 2 are designed. If the mine mainly contains light, toxic, and harmful gases, such as methane and fire smoke, multiple spray components 2 need to be installed in the upper half of the mine passage to achieve spray isolation in the upper area. If the mine mainly contains heavy, toxic, and harmful gases, such as sulfur dioxide, multiple spray components 2 need to be installed in the lower half of the mine passage to achieve spray isolation in the lower area. If the mine mainly contains toxic and harmful gases with a density similar to air, such as carbon monoxide, multiple spray components 2 need to be installed around the perimeter of the mine passage to achieve spray isolation across the entire passage surface.

[0028] Drill holes in the rock wall or ground where the spray assembly 2 needs to be installed, and prefabricate expansion bolts. Fix the bracket plates 2-11 of multiple spray assemblies 2 to the expansion bolts. The distance between two adjacent spray assemblies 2 shall not exceed 5 cm.

[0029] After completing the installation of all spray components 2, connect the quick-connect male connector 2-1 of the adjacent spray components 2 and the self-sealing quick-connect female connector 2-10 of the spray components.

[0030] Finally, connect the pressure tank hand valve 1-4 at the outlet of the pressure tank 1-3 to the self-sealing quick-connect female connector 1-5 of the pressurized water source through the connecting pipeline 1-6. Then connect the self-sealing quick-connect female connector 1-5 of the pressurized water source to the self-sealing quick-connect female connector 2-10 of the first spray component 2 to complete the installation of the mine environment isolation spray device.

[0031] Example 2: Deployment of Mine Environmental Isolation Spray Device

[0032] Commissioning process: In the event of a toxic or harmful gas leak, first open the compressed air hand valve 1-2, then open the pressure-resistant water tank hand valve 1-4. High-pressure water enters the inlet flexible pressure-resistant pipe 2-2 through the quick-connect male connector 2-1, and then enters the spray main pipe 2-4 through the spray connector 2-3. The high-pressure water in the spray main pipe 2-4 forms a small-area water spray through the spray straight head 2-5 and the spray elbow 2-6. The multiple spray straight heads 2-5 and spray elbows 2-6 installed on the spray main pipe 2-4 form a 360-degree area spray isolation zone without dead angles. At the same time, the high-pressure water in the spray main pipe 2-4 enters the outlet flexible pressure-resistant pipe 2-9 through the one-way pressure conduction valve 2-8, and then enters the next series-connected spray assembly 2 through the self-sealing quick-connect female connector 2-10 of the spray assembly. This completes the commissioning operation.

[0033] Shutdown procedure: After use, first close the compressed air hand valve 1-2, wait for the first spray component 2 to stop spraying water mist, and then close the pressure tank hand valve 1-4. This completes the shutdown operation.

[0034] Water shortage alarm: When the water in the pressure tank 1-1 is used up, high-pressure gas enters the spray main pipe 2-4 of the spray assembly 2, and then enters the gas whistle 2-7, causing the gas whistle to emit an alarm sound to notify the operator to handle the situation in time.

Claims

1. A mine environment isolation spray device, characterized in that, It includes a compressed air tank (1-1), a pressure-resistant water tank (1-3), and a spray assembly (2); a connecting pipeline (1-6) is connected between the outlet of the compressed air tank (1-1) and the inlet of the pressure-resistant water tank (1-3), and a connecting pipeline (1-6) is connected between the outlet of the pressure-resistant water tank (1-3) and the spray assembly (2). The high-pressure air in the compressed air tank (1-1) is used to push the water in the pressure-resistant water tank (1-3) into the spray assembly (2), and the spray assembly (2) is used to spray into the mine. The spray assembly (2) includes multiple spray assemblies (2) which are laid out along the rock wall or ground of the mine. The spray assembly (2) includes a spray main pipe (2-4) with spray connectors (2-3) densely distributed on it. The head end of the spray main pipe (2-4) is connected to an inlet flexible pressure-resistant pipe (2-2) and a quick-connect male connector, and the tail end of the spray main pipe (2-4) is connected to an outlet flexible pressure-resistant pipe and a quick-connect female connector. Adjacent spray main pipes (2-4) are connected through quick-connect male connectors and quick-connect female connectors. A support plate (2-11) is also connected to the spray main pipe (2-4). The top of the support plate (2-11) is provided with a through hole. The support plate (2-11) is used to connect expansion bolts on the rock wall and fix the spray main pipe (2-4) through the support plate (2-11) and the expansion bolts.

2. The mine environment isolation spray device according to claim 1, characterized in that, The spray connector (2-3) includes a spray straight head (2-5) and a spray elbow (2-6), which are arranged alternately.

3. The mine environment isolation spray device according to claim 1, characterized in that, The spray pipe (2-4) is also equipped with an air whistle (2-7).

4. The mine environment isolation spray device according to claim 1, characterized in that, The outlet of the compressed air tank (1-1) is equipped with a compressed air hand valve (1-2), and the outlet of the pressure-resistant water tank (1-3) is equipped with a pressure-resistant water tank hand valve (1-4).

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