Metal mine underground ventilation cooling device

Abstract

The utility model relates to the technical field of metal mine, and disclose a kind of metal mine underground ventilation cooling device, including cooling box, the rear end of cooling box is connected with air inlet pipe, and the connecting place of cooling box and air inlet pipe is provided with filter box, the lower position of the side of cooling box is provided with semiconductor refrigerator, the front end of cooling box is installed with gas-liquid separator, the outer ring of gas-liquid separator is connected with air supply pipe in rear position, and the connecting place of air supply pipe and gas-liquid separator is provided with air supply solenoid valve;Through air inlet pipe, filter box, cooling box, semiconductor refrigerator, the humid air of input can be cooled directly, the temperature in mine can be effectively reduced, avoid that water mist is too much to cause the interference of personnel sight, it is convenient to improve ventilation dryness, and air moisture content is less, dust and moisture can be prevented to stick on personnel or equipment, air in odor can be adsorbed, it is convenient to improve ventilation quality.

Description

Technical Field

[0001] This utility model relates to the field of metal mining technology, specifically to a ventilation and cooling device for underground metal mines. Background Technology

[0002] Metal mines generally refer to minerals from which metallic elements can be extracted through smelting. In the working environment of underground mines, the high concentration of dust can greatly reduce visibility in the workplace, obstructing the vision of workers and affecting safe production. Mine ventilation and cooling refers to introducing fresh air into the mine to increase the oxygen concentration, dilute and expel toxic and harmful gases and dust in the mine, dilute harmful gases and dust underground, and regulate the underground temperature in order to create a better working environment.

[0003] A search revealed a Chinese patent for a ventilation and cooling device for underground metal mines, publication number CN217761061U. The device includes a supporting outer frame, with a guide pipe horizontally welded to one end of the supporting outer frame, a water receiving pipe vertically welded to the top surface of the supporting outer frame, and a supporting rod vertically welded to the top surface of the supporting outer frame.

[0004] The above-mentioned device can isolate impurities in the air through the isolation mesh plate, and combines the structure of fan body and spray head for ventilation operation, so that while ventilation is possible, water mist can also be blown outward to ventilate and cool the designated environment.

[0005] However, it is difficult to process the outside air. When the outside air in the mine is humid, the humid air enters the mine directly. The moisture in the air mixes with the dust and may stick to personnel or equipment, affecting the efficiency of personnel. In addition, the method of cooling by spraying water will further increase the humidity in the mine. The humid air will cause water mist to form on the surface of the lighting equipment in the mine, reducing the brightness of the lighting and visibility. Furthermore, the deliquescent ore may stick together, affecting the mining efficiency. Summary of the Invention

[0006] The technical problem to be solved by this utility model is to provide a ventilation and cooling device for underground metal mines, which addresses the shortcomings of the prior art. This ventilation and cooling device can cool the incoming humid air to reduce its temperature. By mixing the cold air with the underground gas, it can effectively reduce the temperature inside the mine. It does not directly spray water to cool the air, thus preventing the underground environment from becoming too humid and avoiding excessive water mist that could interfere with the visibility of personnel. It can also dry the air to prevent it from containing too much moisture, thereby improving ventilation and dryness. Furthermore, the low moisture content of the air can prevent dust and moisture from mixing and sticking to personnel or equipment.

[0007] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0008] A ventilation and cooling device for underground metal mines includes a cooling box, an air inlet pipe connected to the rear end of the cooling box, a filter box provided at the connection between the cooling box and the air inlet pipe, a semiconductor cooler for cooling the liquid inside the cooling box located on one side of the cooling box near the bottom, and a gas-liquid separator provided at the front end of the cooling box.

[0009] An air supply pipe is connected to the rear of the outer ring of the gas-liquid separator, and an air supply solenoid valve is installed at the connection between the air supply pipe and the gas-liquid separator. The end of the air supply pipe away from the gas-liquid separator is connected to the cooling box. An air supply fan is installed at the connection between the cooling box and the air supply pipe. A ventilation pipe is connected to the top of the gas-liquid separator.

[0010] A ventilation solenoid valve is installed at the connection between the ventilation pipe and the gas-liquid separator. A ventilation fan is connected to the other end of the ventilation pipe. A moisture absorption pipe is connected to the end of the ventilation fan away from the ventilation pipe. An exhaust port is movably installed at the front end of the moisture absorption pipe through a damping shaft. The rear end of the exhaust port is connected to the front end of the moisture absorption pipe through a corrugated hose.

[0011] As a further improvement of this utility model, a liquid replenishment pipe is provided at the top of the cooling box, and a pipe with a drain valve is connected to the lower part of the side of the cooling box away from the semiconductor cooler, and the liquid level in the cooling box does not exceed the bottom of the air blower.

[0012] As a further improvement of this utility model, the bottom end of the gas-liquid separator is connected to a drain pipe, the front end of the cooling box is connected to a drain pump, the water inlet of the drain pump is connected to the drain pipe, and the water outlet of the drain pump is connected to the cooling box through a water outlet pipe.

[0013] As a further improvement of this utility model, a mist eliminator is provided at the upper part of the gas-liquid separator, a drain solenoid valve is provided at the connection between the gas-liquid separator and the drain pipe, and a liquid level sensor for detecting the liquid level inside the gas-liquid separator is provided at the lower part of the front end of the gas-liquid separator.

[0014] As a further improvement of this utility model, the filter box is provided with a filter screen plate inside, the moisture absorption tube is filled with an activated carbon adsorption section and a resin moisture absorption section, and the top of both the filter box and the moisture absorption tube are detachably connected with a sealing cap by fixing bolts.

[0015] As a further improvement of the present invention, an electrical control box is provided on one side of the upper part of the cooling box. The electrical control box is electrically connected to the semiconductor cooler, the ventilation solenoid valve, the air supply solenoid valve, the air supply fan, the ventilation fan, the drain pump, the liquid level sensor, and the drain solenoid valve.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention utilizes an air inlet duct, filter box, cooling box, and semiconductor refrigerator working together to directly cool the incoming humid air, thereby lowering its temperature. By mixing the cooled air with the underground mine gases, it effectively reduces the mine's temperature. This non-direct water-spraying cooling method prevents excessive humidity underground and avoids excessive water mist that could obstruct personnel's vision. It also prevents ore from clumping together due to deliquescence, thus avoiding impacts on mining efficiency.

[0018] This invention utilizes a gas-liquid separator, a ventilation fan, and a moisture-absorbing pipe that work together to dry the air during ventilation, preventing it from containing excessive moisture and improving ventilation dryness. The low moisture content of the air also prevents dust and moisture from mixing and sticking to personnel or equipment. Furthermore, the activated carbon adsorption section inside the moisture-absorbing pipe can adsorb odors in the air, further improving ventilation quality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a ventilation and cooling device for underground metal mines according to an embodiment of this utility model;

[0020] Figure 2 This is a cross-sectional view of the internal structure of the cooling box in an embodiment of this utility model;

[0021] Figure 3 As an embodiment of this utility model Figure 1 Top view of the structure.

[0022] In the diagram: 1. Cooling box; 2. Semiconductor refrigerator; 3. Air inlet duct; 4. Filter box; 5. Gas-liquid separator; 6. Air supply fan; 7. Air supply solenoid valve; 8. Ventilation fan; 9. Ventilation solenoid valve; 10. Moisture absorption pipe; 11. Corrugated hose; 12. Exhaust port; 13. Liquid level sensor; 14. Drain pump; 15. Electrical control box; 16. Air supply duct; 17. Ventilation duct; 18. Liquid replenishment pipe; 19. Drain pipe; 20. Water supply pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Combination Figures 1-3A ventilation and cooling device for underground metal mines includes a cooling box 1. An air inlet pipe 3 is connected to the rear end of the cooling box 1, and a filter box 4 is installed at the connection between the cooling box 1 and the air inlet pipe 3. A semiconductor cooler 2 for cooling the liquid inside the cooling box 1 is installed on one side of the cooling box 1 near the bottom. A gas-liquid separator 5 is installed at the front end of the cooling box 1. The cold surface of the semiconductor cooler 2 is in contact with the surface of the cooling box 1. The cooling box 1 can be made of a metal material with excellent thermal conductivity.

[0025] See Figures 1-3 Furthermore, the outer ring of the gas-liquid separator 5 is connected to an air supply pipe 16 at the rear position, and an air supply solenoid valve 7 is provided at the connection between the air supply pipe 16 and the gas-liquid separator 5. The end of the air supply pipe 16 away from the gas-liquid separator 5 is connected to the cooling box 1. An air supply fan 6 is provided at the connection between the cooling box 1 and the air supply pipe 16. A ventilation pipe 17 is connected to the top of the gas-liquid separator 5. A ventilation solenoid valve 9 is provided at the connection between the ventilation pipe 17 and the gas-liquid separator 5. A ventilation fan 8 is connected to the other end of the ventilation pipe 17. A moisture absorption pipe 10 is connected to the end of the ventilation fan 8 away from the ventilation pipe 17. An exhaust port 12 is movably installed (rotatably connected) at the front end of the moisture absorption pipe 10 through a damping pivot. The rear end of the exhaust port 12 is connected to the front end of the moisture absorption pipe 10 through a corrugated hose 11. The exhaust port 12 is rotatable. The filter box 4 is equipped with a filter screen plate inside, and the moisture absorption tube 10 is filled with an activated carbon adsorption section and a resin moisture absorption section. Both the filter box 4 and the moisture absorption tube 10 are detachably connected to a sealing cap via fixing bolts. Opening the sealing cap allows for replacement of the filter screen plate, the activated carbon adsorption section, or the resin moisture absorption section. The activated carbon adsorption section is composed of many activated carbon particles, and the resin moisture absorption section is composed of many moisture-absorbing resin particles.

[0026] Specifically, by connecting the air inlet pipe 3 to the external air supply pipe, external air is delivered to the cooling box 1. Coolant can be pre-filled into the cooling box 1. One end of the air inlet pipe 3 passes through the cooling box 1 and extends into the coolant. The semiconductor cooler 2 is activated to cool the coolant to ensure that the coolant maintains a suitable temperature. Subsequently, the gas filtered by the filter box 4 enters the coolant in the cooling box 1 to complete the cooling process. Then, the air supply fan 6 and the ventilation fan 8 are activated, and the air supply solenoid valve 7 and the ventilation solenoid valve 9 are opened. The air supply fan 6 delivers the cooled gas to the moisture absorption pipe 10. After being treated by the activated carbon section and the resin moisture absorption section in the moisture absorption pipe 10, the gas is discharged into the mine through the corrugated hose 11 and the exhaust port 12. At this time, the air temperature is low and the moisture content is low, which can effectively reduce the temperature inside the mine.

[0027] See Figure 1The cooling tank 1 is equipped with a liquid replenishment pipe 18 at its top. A drain valve is connected to a pipe located on the lower side of the cooling tank 1 away from the semiconductor cooler 2, and the liquid level inside the cooling tank 1 does not exceed the bottom of the air blower 6. A drain pipe 19 is connected to the bottom of the gas-liquid separator 5. A drain pump 14 is connected to the lower front end of the cooling tank 1, and the pump's inlet is connected to the drain pipe 19. The pump's outlet is connected to the cooling tank 1 via a water supply pipe 20. A mist eliminator is located at the upper interior of the gas-liquid separator 5. A drain solenoid valve is located at the connection between the gas-liquid separator 5 and the drain pipe 19. A liquid level sensor 13 for detecting the liquid level inside the gas-liquid separator 5 is located at the lower front end of the gas-liquid separator 5. An electrical control box 15 is located on one side of the upper part of the cooling box 1. The electrical control box 15 is electrically connected to the semiconductor cooler 2, the ventilation solenoid valve 9, the air supply solenoid valve 7, the air supply fan 6, the ventilation fan 8, the drain pump 14, the liquid level sensor 13, and the drain solenoid valve. The gas-liquid separator 5 adopts a commonly used existing structure.

[0028] The liquid level sensor 13 is used to send signals to the electrical control box 15. The electrical control box 15 is used to control the operation of the semiconductor cooler 2, ventilation solenoid valve 9, air supply solenoid valve 7, air supply fan 6, ventilation fan 8, drain pump 14, and drain solenoid valve. The electrical control box 15, semiconductor cooler 2, ventilation solenoid valve 9, air supply solenoid valve 7, air supply fan 6, ventilation fan 8, drain pump 14, liquid level sensor 13, and drain solenoid valve are all connected to a power source.

[0029] Specifically, the liquid level sensor 13 sends a signal to the electrical control box 15 in real time. When the liquid level sensor 13 detects that there is a lot of water in the gas-liquid separator 5, the electrical control box 15 controls the ventilation solenoid valve 9 to close and starts the drain pump 14. At the same time, the drain solenoid valve is opened. At this time, the water in the gas-liquid separator 5 will be guided by the drain pump 14 and discharged back into the cooling box 1. After complete drainage, the drain pump 14 and the drain solenoid valve can be closed. Then, ventilation and cooling can continue according to the above steps. The top of the cooling box 1 is equipped with a liquid replenishment pipe. When there is little water in the cooling box 1, water can be replenished into the cooling box 1 through the liquid replenishment pipe. At the same time, a pipe with a drain valve is provided on the side of the cooling box 1 away from the semiconductor cooler 2. When there is a lot of water, the drain valve can be opened as needed to drain the water.

[0030] In actual operation, the valves and power supply control components are waterproofed and explosion-proof according to existing technology, which will not be elaborated here. By connecting the air inlet pipe 3 to the external air supply pipe, the external air is delivered to the cooling box 1. At this time, coolant can be pre-filled into the cooling box 1, and the semiconductor cooler 2 is started to cool the coolant to ensure that the coolant maintains a suitable temperature. Subsequently, the gas filtered by the filter box 4 enters the coolant in the cooling box 1 to complete the cooling process.

[0031] Subsequently, the air supply fan 6 and ventilation fan 8 can be started and the air supply solenoid valve 7 and ventilation solenoid valve 9 can be opened. The cooled air can be transported to the moisture absorption pipe 10 through the air supply fan 6. After being treated by the activated carbon section and resin moisture absorption section in the moisture absorption pipe 10, it is discharged into the mine through the corrugated hose 11 and the exhaust port 12. At this time, the air temperature is low and the moisture content is low, which can effectively reduce the temperature in the mine.

[0032] Furthermore, a sealing cover is detachably installed at the top of the moisture absorption pipe 10. After prolonged use, the sealing cover can be removed, and the activated carbon in the activated carbon adsorption section or the moisture absorption resin in the resin moisture absorption section can be replaced to prevent it from losing its treatment function after saturation. Meanwhile, the exhaust port 12 is connected to the moisture absorption pipe through the corrugated hose 11, and a damping pivot is provided at the connection between the exhaust port 12 and the moisture absorption pipe 10. During ventilation, the exhaust port 12 can be moved to adjust its spray angle, which provides high flexibility in use.

[0033] When the liquid level sensor 13 detects that there is too much water in the gas-liquid separator 5, the ventilation solenoid valve 9 is closed and the drain pump 14 is started. At the same time, the drain solenoid valve is opened. At this time, the water in the gas-liquid separator 5 will be guided by the drain pump 14 and discharged back into the cooling tank 1. After complete drainage, the drain pump 14 and the drain solenoid valve can be closed.

[0034] Afterwards, ventilation and cooling can continue according to the above steps. A liquid replenishment pipe 18 is provided at the top of the cooling box 1. When the water (coolant) in the cooling box 1 is low, water can be replenished into the cooling box 1 through the liquid replenishment pipe 18. At the same time, a drain valve pipe is provided on the side of the cooling box 1 away from the semiconductor cooler 2. When there is a lot of water, the water can be drained as needed.

[0035] Furthermore, the display and control components and modules used in the aforementioned electrical control box 15, semiconductor cooler 2, air supply fan 6, ventilation fan 8, air supply solenoid valve 7, ventilation solenoid valve 9, drainage pump 14, and drainage solenoid valve are all existing technologies, which can be fully implemented by those skilled in the art. The power supply is also common knowledge in the field and does not need to be elaborated. The content protected by this utility model does not involve any improvement to the software and methods.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A metal mine underground ventilation cooling device, characterized in that: Includes a cooling box (1), the rear end of which is connected to an air inlet pipe (3), and a filter box (4) is provided at the connection between the cooling box (1) and the air inlet pipe (3). A semiconductor cooler (2) for cooling the liquid in the cooling box (1) is provided on one side of the cooling box (1) at a lower position, and a gas-liquid separator (5) is provided at the front end of the cooling box (1). The gas-liquid separator (5) is connected to an air supply pipe (16) at the rear of its outer ring. An air supply solenoid valve (7) is provided at the connection between the air supply pipe (16) and the gas-liquid separator (5). The end of the air supply pipe (16) away from the gas-liquid separator (5) is connected to the cooling box (1). An air supply fan (6) is provided at the connection between the cooling box (1) and the air supply pipe (16). A ventilation pipe (17) is connected to the top of the gas-liquid separator (5). A ventilation solenoid valve (9) is provided at the connection between the ventilation pipe (17) and the gas-liquid separator (5). A ventilation fan (8) is connected to the other end of the ventilation pipe (17). A moisture-absorbing pipe (10) is connected to the end of the ventilation fan (8) away from the ventilation pipe (17). An exhaust port (12) is movably connected to the front end of the moisture-absorbing pipe (10) through a damping shaft. The rear end of the exhaust port (12) is connected to the front end of the moisture-absorbing pipe (10) through a corrugated hose (11).

2. The metal mine underground ventilation cooling device according to claim 1, characterized in that: The top of the cooling box (1) is provided with a liquid replenishment pipe (18), and a pipe with a drain valve is connected to the lower part of the side of the cooling box (1) away from the semiconductor cooler (2), and the liquid level in the cooling box (1) does not exceed the bottom of the air blower (6).

3. The metal mine underground ventilation cooling device according to claim 1, characterized in that: The bottom end of the gas-liquid separator (5) is connected to a drain pipe (19), and the front end of the cooling box (1) is connected to a drain pump (14) at a lower position. The water inlet of the drain pump (14) is connected to the drain pipe (19), and the water outlet of the drain pump (14) is connected to the cooling box (1) through a water supply pipe (20).

4. The metal mine underground ventilation cooling device according to claim 3, characterized in that: A mist eliminator is installed at the upper part of the gas-liquid separator (5). A drain solenoid valve is installed at the connection between the gas-liquid separator (5) and the drain pipe (19). A liquid level sensor (13) for detecting the liquid level inside the gas-liquid separator (5) is installed at the lower part of the front end of the gas-liquid separator (5).

5. The metal mine underground ventilation cooling device according to claim 1, characterized in that: The filter box (4) is equipped with a filter screen plate inside, and the moisture absorption tube (10) is filled with an activated carbon adsorption section and a resin moisture absorption section. The top of both the filter box (4) and the moisture absorption tube (10) are detachably connected with a sealing cap by fixing bolts.

6. The metal mine underground ventilation cooling device according to claim 4, characterized in that: An electrical control box (15) is provided on one side of the upper part of the cooling box (1). The electrical control box (15) is electrically connected to the semiconductor cooler (2), the ventilation solenoid valve (9), the air supply solenoid valve (7), the air supply fan (6), the ventilation fan (8), the drain pump (14), the liquid level sensor (13), and the drain solenoid valve.

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