Underground ventilation cooling method and device

Abstract

The invention provides an underground ventilation cooling method and device, and belongs to the technical field of mine construction. The method comprises the steps that a conveyor is used for conveying a to-be-mounted air duct assembly to an air duct mounting position; connecting the air duct components section by section by using connecting pieces in the direction from outside to inside, then connecting the air duct components with hanging rings of the air duct components by using a pre-erected rack and a hoisting device, and completing the installation of the air duct; wherein ventilation holes are densely formed in the bottom of the air duct; a lifting device capable of vertically lifting in the air duct is arranged; a cooling assembly is arranged on a lifting platform of the lifting device; a ventilation device which is arranged on the working face above the well in advance is used for conducting ventilation on the interior of the air duct, and air enters the well through ventilation holes of the air duct after passing through the cooling assembly. According to the underground ventilation cooling method and device, the technical effects that the temperature of the underground working face can be remarkably reduced, and the working efficiency and safety of miners are improved can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of mine construction, and in particular to an underground ventilation and cooling method and device. Background Art

[0002] With the rapid development of the mining industry, more than one-third of the country's metal mines have a mining depth of 1,000 meters or more. The high temperature problem in deep mining is mainly due to the increase in geothermal gradients, that is, as the mining depth increases, the temperature of the underground rock formation also increases. Therefore, the high temperature problem faced by deep mining is particularly prominent, especially when the ventilation system during the mine infrastructure period has not yet been fully formed. The high temperature environment poses a severe challenge to operational safety, efficiency, and equipment operation. Specifically, during the infrastructure stage, since the permanent ventilation system has not yet been established and there are many dead-end tunnels, the ventilation of the working face mainly relies on local fans (local fans) to connect the air duct. However, this ventilation method often causes the working face temperature to be too high due to the large amount of heat generated when the working face is slagging and the drilling rig is drilling. In this case, conventional ventilation methods cannot effectively reduce the temperature of the working face.

[0003] A mine ventilation device (publication number CN218862651 U) is disclosed in the prior art. The top of the ventilation box is connected to the air outlet pipe, the bottom is connected to the air inlet pipe, and the air circulation in the mine is realized by the fan in the air outlet pipe. The filter assembly arranged between the air outlet pipe and the air inlet pipe filters the air containing dust impurities extracted from the mine, so that the dusty air is mixed with water and then passes through the fan after filtering, thereby effectively improving the operation time of the fan and the ventilation efficiency. Although it has a certain ventilation effect, the cooling effect is limited.

[0004] Therefore, there is an urgent need for a highly efficient underground ventilation and cooling method and device. Summary of the invention

[0005] The object of the present invention is to provide an underground ventilation and cooling method and device to solve at least one technical problem existing in the prior art.

[0006] The present invention protects an underground ventilation and cooling method, which comprises:

[0007] Using a conveyor to transport the wind tube assembly to be installed to the wind tube installation position;

[0008] From the outside to the inside, the wind tube assembly is connected section by section using a connecting piece, and then the pre-erected stand and a lifting device are connected to the lifting ring of the wind tube assembly to complete the installation of the wind tube; wherein, the bottom of the wind tube is densely provided with ventilation holes;

[0009] A lifting device capable of vertical lifting and lowering movement in the wind tube is provided; a cooling component is provided on the lifting platform of the lifting device;

[0010] The air duct is ventilated by using a ventilation device pre-installed at the working surface above the well. After the wind passes through the cooling component, it enters the well through the ventilation holes of the air duct.

[0011] Further, the preferred method further comprises:

[0012] The method for providing a lifting device capable of vertical lifting movement in the wind tube comprises:

[0013] A lifting installation frame for supporting the lifting platform is arranged on the working surface above the well;

[0014] A lifting component is arranged on the lifting mounting frame and is used to drive the lifting platform to perform vertical lifting movement in the wind tube.

[0015] Further, a preferred method is that the cooling component includes a cooling box, a water collecting tank arranged below the cooling box, and ice cubes arranged in the cooling box; and cooling ventilation holes are arranged on the inner wall of the cooling box.

[0016] Further, the preferred method further comprises:

[0017] Using a water level sensor to detect the water level in the water collection tank;

[0018] When the water level in the sump reaches a set height, the water level sensor sends out a voice alarm.

[0019] Further, the preferred method further comprises:

[0020] After lowering the lifting platform loaded with the cooling component to the cooling working position at the bottom of the wind tube, the cooling operation is performed and timing is performed;

[0021] When the preset time is reached, the lifting assembly automatically drives the lifting platform to rise to the ice-adding working position on the top of the wind tube to perform the ice-adding operation.

[0022] Further, a preferred method is to lower the lifting platform loaded with the cooling component to the cooling working position at the bottom of the wind tube to perform cooling;

[0023] When the water level in the water collecting tank reaches a set height, the water level sensor sends an electrical signal, and the lifting assembly drives the lifting platform to rise to the ice adding working position on the top of the wind tube to perform ice adding operation.

[0024] Furthermore, the preferred method further comprises a control system, wherein the control system is used to control the lifting assembly to drive the lifting platform to rise or fall;

[0025] The control system receives the electrical signal from the water level sensor.

[0026] Further, a preferred method is that the lifting assembly includes a fixed pulley, a movable pulley and a lifting rope;

[0027] The fixed pulley is fixedly arranged on one side of the lifting installation frame, and the movable pulley is fixedly arranged on the other side of the lifting installation frame;

[0028] One end of the lifting rope is connected to the drum wheel of the winch, and the lifting rope passes around the fixed pulley and the movable pulley in sequence, and the other end is connected to the lifting platform.

[0029] Further, a preferred method is that the lifting component is an electric lifting platform.

[0030] The present invention also includes an underground ventilation and cooling device, the device comprising:

[0031] The wind tube installation unit is used to transport the wind tube assembly to be installed to the wind tube installation position by using a conveyor; the wind tube assembly is connected section by section by using a connecting piece from the outside to the inside, and then the pre-erected stand and the lifting device are connected to the lifting ring of the wind tube assembly to complete the wind tube installation; wherein, the bottom of the wind tube is densely provided with ventilation holes;

[0032] A lifting unit is used to set a lifting device that can move vertically in the wind tube; a cooling component is set on the lifting platform of the lifting device;

[0033] The ventilation unit is used to ventilate the air duct by using a ventilation device pre-arranged at the working surface above the well. After the wind passes through the cooling component, it enters the well through the ventilation holes of the air duct.

[0034] As described above, the underground ventilation and cooling method and device of the present invention include using a conveyor to convey the wind duct assembly to be installed to the wind duct installation position; taking the direction from the outside to the inside, using a connector to connect the wind duct assembly section by section, and then using a pre-erected stand and a hoisting device to connect with the hanging ring of the wind duct assembly, and completing the installation of the wind duct; wherein, the bottom of the wind duct is densely provided with ventilation holes; a lifting device that can move vertically up and down in the wind duct is provided; a cooling component is provided on the lifting platform of the lifting device; the wind duct is ventilated by using a ventilation device pre-set at the working surface above the well, and the wind passes through the cooling component and enters the well through the ventilation holes of the wind duct. The underground ventilation and cooling method and device of the present invention can pre-cool the wind through the cooling component carried by the lifting device to reduce the temperature of the wind, and then send the cold wind into the well through the ventilation holes of the wind duct. This pre-cooling treatment can significantly reduce the temperature of the underground working surface and reduce the heat stress of miners. In addition, the vertical lifting movement of the lifting device allows the cooling components to be adjusted according to the temperature requirements of different areas underground, providing greater flexibility and adaptability. This ventilation system that integrates the vents at the bottom of the wind tube, the lifting device and the cooling components can effectively improve the air quality and temperature conditions underground, improve the work efficiency and safety of miners, and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] By referring to the following description and claims in conjunction with the accompanying drawings, and with a more comprehensive understanding of the present invention, other objects and results of the present invention will become more apparent and easier to understand. In the accompanying drawings:

[0036] Figure 1 It is a flow chart of an underground ventilation and cooling method according to an embodiment of the present invention.

[0037] Figure 2 It is a schematic structural diagram of an underground ventilation and cooling device according to an embodiment of the present invention.

[0038] Figure 3 It is another structural schematic diagram of an underground ventilation and cooling device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0039] In the following description, for the purpose of illustration, in order to provide a comprehensive understanding of one or more embodiments, many specific details are set forth. However, it is apparent that these embodiments may also be implemented without these specific details. In other examples, for ease of describing one or more embodiments, well-known structures and devices are shown in the form of block diagrams.

[0040] It should be understood that terms such as "horizontal", "vertical", "up", "down", "top", "middle", "length", "inside", and "bottom" indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting the present invention.

[0041] Unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or integrated; they can be mechanically connected, electrically connected, or able to communicate with each other; they can be directly connected, or indirectly connected through an intermediate medium, and they can be internally connected between two elements or an interactive relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Example 1

[0043] Various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0044] Figure 1 It is a schematic diagram of the process of an underground ventilation and cooling device according to an embodiment of the present invention.

[0045] The present invention protects a method for underground ventilation and cooling, such as Figure 1 As shown, the method includes,

[0046] S110, using a conveyor to convey the wind duct assembly to be installed to the wind duct installation position.

[0047] S120. Connect the air duct assembly section by section using connectors from outside to inside, and then connect the air duct assembly to the hanging rings using a pre-erected stand and a hoisting device to complete the installation of the air duct; wherein ventilation holes are densely arranged at the bottom of the air duct.

[0048] S130, a lifting device capable of vertical lifting and lowering in the wind tube is provided; a cooling component is provided on the lifting platform of the lifting device. The cooling component includes a cooling box, a water collecting tank provided below the cooling box, and ice cubes provided in the cooling box; cooling ventilation holes are provided on the inner wall of the cooling box. The lifting component is an electric lifting platform.

[0049] S140, ventilating the air duct by using a ventilation device pre-installed at the working surface above the well, and the wind passes through the cooling component and then enters the well through the ventilation holes of the air duct.

[0050] Furthermore, the method for setting up a lifting device that can perform vertical lifting and lowering movements in the wind duct includes: S131, setting up a lifting mounting frame for supporting a lifting platform on the working surface above the well; S132, setting up a lifting component on the lifting mounting frame for driving the lifting platform to perform vertical lifting and lowering movements in the wind duct.

[0051] As an improvement of the present embodiment, the lifting and lowering action of the lifting device is linked to the water level in the water collection tank through a control system. The specific method includes: S151, after the lifting platform loaded with the cooling component is lowered to the cooling working position at the bottom of the wind tube, cooling is performed; the water level in the water collection tank is detected by a water level sensor; S152, when the water level in the water collection tank reaches the set height, the water level sensor issues a voice alarm. S153, when the water level in the water collection tank reaches the set height, the water level sensor sends an electrical signal, and the lifting component drives the lifting platform to rise to the ice adding working position at the top of the wind tube to perform ice adding operations. By monitoring the water level, the energy efficiency and operation efficiency of the system are improved.

[0052] As an improvement of this embodiment, after the lifting platform loaded with the cooling component is lowered to the cooling working position at the bottom of the wind tube, the cooling operation is performed and the timing is calculated; when the preset time is reached, the lifting component automatically drives the lifting platform to rise to the ice adding working position at the top of the wind tube to perform the ice adding operation. In other words, by counting the melting time of ice cubes, the melting time of ice cubes is set to the preset time length

[0053] For the present invention, the control unit can be set up with an automatic control system based on a PLC (programmable logic controller), which can not only receive the signal of the liquid level sensor, but also automatically control the start and stop of the lifting action of the lifting device according to the signal. In other words, a more complex control logic can be realized by combining a variety of sensors with the control unit. The control unit can also be set up with fault diagnosis and alarm functions. When a sensor fails, the system can automatically alarm and take corresponding emergency measures.

[0054] Example 2

[0055] The present invention protects an underground ventilation and cooling device, including a duct assembly and a connector, a duct installation unit, a lifting unit and a ventilation unit; the duct installation unit includes a conveyor for conveying the duct assembly to be installed to the duct installation position; a stand and a lifting device for hoisting the duct assembly connected section by section using the connector to form a duct; wherein the bottom of the duct is densely provided with ventilation holes; the lifting unit includes a lifting device that can be lifted and lowered vertically on the duct; a lifting platform is provided at the bottom of the lifting device, and a cooling component is provided on the lifting platform; the ventilation unit includes a ventilation device provided at the working surface above the well. The densely provided ventilation holes at the bottom of the duct, the lifting device and the cooling component work together to achieve effective ventilation and cooling of the underground environment.

[0056] The cooling assembly includes a cooling box, a water collecting tank 5 arranged below the cooling box, and ice cubes arranged in the cooling box; cooling ventilation holes are arranged on the inner wall of the cooling box.

[0057] In the specific implementation process, the lifting device includes a lifting mounting frame and a lifting assembly for supporting the lifting platform; the lifting mounting frame is arranged on the working surface above the well; and a lifting assembly for driving the lifting platform to move vertically up and down in the wind tube is arranged on the lifting mounting frame. That is to say, a lifting assembly for driving the lifting platform to move vertically up and down in the wind tube is arranged on the lifting mounting frame, and the lifting assembly can be electrically or hydraulically driven to achieve precise control and stable operation of the lifting platform. The lifting assembly can include but is not limited to a motor, a gear, a screw rod, a pulley block, a cable or a hydraulic system, etc., and these components work together to achieve vertical movement of the lifting platform. The design of the lifting platform needs to take into account load, stability and safety to adapt to different working conditions and environments. In addition, the present invention also includes a cooling assembly arranged on the lifting platform, which is used to pre-cool the wind to improve ventilation efficiency and effect. The wind tube is ventilated by a ventilation device pre-arranged at the working surface above the well, and the wind passes through the cooling assembly and enters the well through the ventilation hole of the wind tube, thereby achieving cooling and ventilation of the underground environment. The design of this lifting device not only provides an effective solution for underground ventilation and cooling, but also can flexibly adjust the position of the cooling components through the vertical movement of the lifting platform to meet the temperature regulation needs of different areas, thereby improving the adaptability and efficiency of the system.

[0058] Example 3

[0059] In this embodiment, various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0060] Figure 1-Figure 2The structure of the underground ventilation and cooling device is described in general. Specifically, Figure 1 2 is a schematic structural diagram of an underground ventilation and cooling device according to an embodiment of the present invention; Figure 2 It is another structural schematic diagram of an underground ventilation and cooling device according to an embodiment of the present invention.

[0061] The underground ventilation and cooling device includes a wind tube assembly and a connecting piece, a wind tube installation unit, a lifting unit and a ventilation unit; the wind tube installation unit includes a conveyor for conveying the wind tube assembly to be installed to the wind tube installation position; a stand and a lifting device for hoisting the wind tube assembly connected section by section using the connecting piece to form a wind tube 1; wherein the bottom of the wind tube is densely provided with ventilation holes; the lifting unit includes a lifting device that can be lifted and lowered vertically on the wind tube; a lifting platform 4 is provided at the bottom of the lifting device, and a cooling component is provided on the lifting platform 4; the ventilation unit includes a ventilation device arranged at the working surface above the well. The lifting device includes a lifting mounting frame and a lifting component for supporting the lifting platform; the lifting mounting frame is arranged on the working surface above the well; a lifting component for driving the lifting platform to move vertically up and down in the wind tube is arranged on the lifting mounting frame. The cooling component includes ice cubes. The ventilation holes are arranged in an array; a lifting ring is provided on the wall of the wind tube 1, and the lifting ring is used to connect with the stand and the lifting device.

[0062] As an implementation form of this embodiment, the lifting assembly includes a fixed pulley 1, a movable pulley 8 and a lifting rope 3; the fixed pulley 1 is fixedly arranged on one side of the lifting mounting frame 7, and the movable pulley 8 is fixedly arranged on the other side of the lifting mounting frame 7; the lifting rope 3 passes around the fixed pulley 2 and the movable pulley 8 in sequence, and one end of the lifting rope 3 is connected to the lifting platform. In the specific implementation process, the lifting rope can be a steel wire rope or a nylon rope. It is set according to the needs of the actual application scenario to adapt to different loads and safety requirements. As an implementation form of this embodiment, the lifting platform can be a hanging basket commonly used at the construction site. The lifting rope can be lifted and lowered by manpower. The other end of the lifting rope can also be connected to the drum of the winch to achieve one-button automatic lifting and lowering. It is set according to the needs of the actual application scenario and is not specifically limited here.

[0063] Specifically, the wind tube and the hanging basket can be made of flame-retardant plastic steel or iron sheet to ensure safety and durability. The gap 5 in the double-layer structure of the hanging basket can be filled and sealed with foam or rock wool to provide thermal insulation. For the wind tube, the lower part of the main wind tube is densely opened so that the wind flow can pass through these holes and take away the coldness of the ice. Ice cubes are filled inside the hanging basket to provide a cold source. A drain hole is reserved at the bottom of the hanging basket so that the water after the ice melts can be discharged to prevent water accumulation. A single pulley is installed on one side of the main body and a double pulley is installed on the other side to use a wire rope and a fixed pulley to pull the hanging basket up and down. The device is installed on the wind tube not far from the working surface to ensure that the wind flow can effectively pass through the device and cool down. This device will help to provide effective ventilation and cooling for high-temperature working surfaces without increasing additional engineering workload, improve the working environment, and protect the health and safety of operators.

[0064] In the specific implementation process, the main wind tube and wind tube joints should be processed according to the size of the tunnel wind tube to ensure consistent diameters to reduce wind resistance. The hanging basket should be made of lightweight materials for easy manual operation. If it is too heavy, a fall chain or electric drive device may need to be installed. The pulley and wire rope must be firmly fixed to prevent the hanging basket from falling and causing personal injury. A drain hole must be reserved at the bottom of the hanging basket to drain the melted ice water. With this design, the device can effectively reduce the temperature of the working surface and improve the comfort of the working environment, while avoiding the increase of additional engineering workload and costs.

[0065] In summary, for Example 2, the wind tube is the main part of the device, which is used to guide the wind flow and send cold air into the working surface through the opening at the bottom. A wire rope / nylon rope is set to pull the hanging basket up and down; a fixed pulley is set to change the direction of the wire rope so that the hanging basket can move vertically in the wind tube. The hanging basket is set as a lifting platform to carry ice cubes and cool down the air flow in the wind tube. This Example 2 is an implementation method adopted according to the existing materials at the mine site. It can be easily moved to different positions according to the needs of the working surface, has a simple structure, is easy to install and operate, and does not require a complicated installation procedure. It has advantages in cost control and does not require a large amount of capital investment. Avoid adding additional engineering measures, such as building a wind chamber, to reduce the impact on the excavation tunnel. This embodiment has the characteristics of strong mobility, low cost, simple operation, and no additional engineering workload.

[0066] Example 4

[0067] The present invention protects an underground ventilation and cooling device, including a duct assembly and a connector, a duct installation unit, a lifting unit and a ventilation unit; the duct installation unit includes a conveyor for conveying the duct assembly to be installed to the duct installation position; a stand and a lifting device for hoisting the duct assembly connected section by section using the connector to form a duct; wherein the bottom of the duct is densely provided with ventilation holes; the lifting unit includes a lifting device that can be lifted and lowered vertically on the duct; a lifting platform is provided at the bottom of the lifting device, and a cooling component is provided on the lifting platform; the ventilation unit includes a ventilation device provided at the working surface above the well. The densely provided ventilation holes at the bottom of the duct, the lifting device and the cooling component work together to achieve effective ventilation and cooling of the underground environment.

[0068] The cooling component comprises a cooling box, a water collecting tank arranged below the cooling box and ice cubes arranged in the cooling box; cooling ventilation holes are arranged on the inner wall of the cooling box.

[0069] In the specific implementation process, the lifting device includes a lifting mounting frame and a lifting component for supporting the lifting platform; the lifting mounting frame is arranged on the working surface above the well; and a lifting component is arranged on the lifting mounting frame to drive the lifting platform to move vertically up and down in the wind tube.

[0070] In order to further improve the automation level of the underground ventilation and cooling device of the present invention, the lifting component is an electric lifting platform. A water level sensor for detecting the water level is arranged in the water collection tank; the water level sensor is connected to a buzzer. A control system is also included, the control system is used to control the lifting component to drive the lifting platform to rise or fall; the control system receives the electrical signal of the water level sensor.

[0071] That is to say, in the specific implementation process, one implementation method is that the lifting device drives the lifting platform to automatically rise and fall, and when all the ice cubes in the cooling box are melted, so that the water level in the water collection tank rises to a set height, the water level sensor buzzes and alarms. After hearing the buzzing alarm, the manual operation drives the lifting device to automatically rise and completes the ice replacement action.

[0072] Another implementation method is that the lifting device drives the lifting platform to automatically rise and fall, and the lifting and falling action of the lifting device is linked to the water level in the water collection tank. When all the ice cubes in the cooling box melt, causing the water level in the water collection tank to rise to a set height, the water level sensor buzzes and alarms, and triggers the control system to control the lifting device to drive the lifting platform to automatically rise, and then the ice cube replacement action is completed manually.

[0073] However, those skilled in the art should understand that various improvements can be made to the underground ventilation and cooling method and device provided by the present invention without departing from the content of the present invention. Therefore, the protection scope of the present invention should be determined by the content of the attached claims.

Claims

1. A method for underground ventilation and cooling, characterized in that: Methods include, Using a conveyor to transport the wind tube assembly to be installed to the wind tube installation position; From the outside to the inside, the wind tube assembly is connected section by section using a connecting piece, and then the pre-erected stand and a lifting device are connected to the lifting ring of the wind tube assembly to complete the installation of the wind tube; wherein, ventilation holes are densely opened at the bottom of the wind tube; The cooling component on the lifting platform is driven to descend to the cooling working position at the bottom of the wind tube by the lifting device arranged in the wind tube; The air duct is ventilated by using a ventilation device pre-installed at the working surface above the well. After the wind passes through the cooling component, it enters the well through the ventilation holes of the air duct.

2. The underground ventilation and cooling method according to claim 1, characterized in that: The method for providing a lifting device capable of vertical lifting movement in the wind tube comprises: A lifting installation frame for supporting the lifting platform is arranged on the working surface above the well; A lifting component is arranged on the lifting mounting frame and is used to drive the lifting platform to perform vertical lifting movement in the wind tube.

3. The underground ventilation and cooling method according to claim 1, characterized in that: The cooling component comprises a cooling box, a water collecting tank arranged below the cooling box and ice cubes arranged in the cooling box; cooling ventilation holes are arranged on the inner wall of the cooling box.

4. The underground ventilation and cooling method according to claim 3, characterized in that: Also includes, Using a water level sensor to detect the water level in the water collection tank; When the water level in the sump reaches a set height, the water level sensor sends out a voice alarm.

5. The underground ventilation and cooling method according to claim 3, characterized in that: Also includes, After lowering the lifting platform loaded with the cooling component to the cooling working position at the bottom of the wind tube, the cooling operation is performed and timing is performed; When the preset time is reached, the lifting assembly automatically drives the lifting platform to rise to the ice-adding working position on the top of the wind tube to perform the ice-adding operation.

6. The underground ventilation and cooling method according to claim 4, characterized in that: After lowering the lifting platform loaded with the cooling component to the cooling working position at the bottom of the wind tube, cooling is performed; When the water level in the water collecting tank reaches a set height, the water level sensor sends an electrical signal, and the lifting assembly drives the lifting platform to rise to the ice adding working position on the top of the wind tube to perform ice adding operation.

7. The underground ventilation and cooling method according to claim 1, characterized in that: It also includes a control system, which is used to control the lifting assembly to drive the lifting platform to rise or fall; The control system receives an electrical signal from a water level sensor.

8. The underground ventilation and cooling method according to claim 2, characterized in that: The lifting assembly comprises a fixed pulley, a movable pulley and a lifting rope; The fixed pulley is fixedly arranged on one side of the lifting installation frame, and the movable pulley is fixedly arranged on the other side of the lifting installation frame; One end of the lifting rope is connected to the drum wheel of the winch, and the lifting rope passes around the fixed pulley and the movable pulley in sequence, and the other end is connected to the lifting platform.

9. The underground ventilation and cooling method according to claim 2, characterized in that: The lifting component is an electric lifting platform.

10. An underground ventilation and cooling device, characterized in that: include, The wind tube installation unit is used to transport the wind tube assembly to be installed to the wind tube installation position by using a conveyor; the wind tube assembly is connected section by section by using a connecting piece from the outside to the inside, and then the pre-erected stand and the lifting device are connected to the lifting ring of the wind tube assembly to complete the wind tube installation; wherein, the bottom of the wind tube is densely provided with ventilation holes; A lifting unit, used for driving the cooling component on the lifting platform to descend to the cooling working position at the bottom of the wind tube through a lifting device arranged in the wind tube; The ventilation unit is used to ventilate the air duct by using a ventilation device pre-arranged at the working surface above the well. After the wind passes through the cooling component, it enters the well through the ventilation holes of the air duct.

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