A mobile refrigeration and cooling device and method for high-temperature tunneling

Abstract

The present invention provides a mobile refrigeration and cooling device for high-temperature tunneling tunnels, comprising a mobile refrigeration system, an isolation assembly, and a pulling trolley. The isolation assembly is fixedly mounted within the tunnel, dividing the tunnel into an air guide chamber and a ventilation chamber. The ventilation chamber is provided with a mobile refrigeration system, which is connected to the pulling trolley via a connecting rod. The mobile refrigeration system comprises a mobile base, a refrigeration box, an air inlet pipe, an air outlet pipe, and a telescopic rod. The bottom of the refrigeration box is connected to the mobile base via a telescopic rod. The refrigeration box is internally provided with an air guide chamber, an air outlet chamber, and a refrigeration chamber. The air inlet at the top of the air outlet chamber passes through the isolation assembly through the air inlet pipe and is connected to the air guide chamber. The air guide chamber passes through the isolation assembly through the air outlet pipe and is connected to the air guide chamber. A blower is provided at the other end of the air outlet pipe. The present invention eliminates the need for connecting a cooling pipe and can achieve low-cost mobile refrigeration and cooling of high-temperature tunneling tunnels.

Description

Technical Field

[0001] The present invention relates to the technical field of mineral processing equipment, and in particular to a mobile refrigeration and cooling device and method for a high-temperature tunneling tunnel. Background Art

[0002] As the mining depth of mines continues to increase, the problem of mine heat damage has gradually become prominent. Many metal mines are facing the problem of high-temperature heat damage. Therefore, how to solve the problem of mine heat damage is a difficult problem facing the mining industry. At present, the traditional mechanical refrigeration system has achieved certain results in the treatment of mine heat damage. However, due to its large infrastructure investment, it is necessary to build a dedicated chamber, lay cold pipes and cooling pipelines, which is a large project with high operating costs. In addition, a certain amount of cold will be lost during the refrigerant transportation process. These reasons have limited its widespread application underground. Therefore, it is necessary to seek a mobile refrigeration and cooling device and method for high-temperature tunneling that has good cooling effect, is movable, does not require connection to cold pipes, and has low operating costs.

[0003] The invention provides a mobile refrigeration and cooling device and method for high-temperature tunneling tunnels in underground mines, which has good cooling effect, is movable, does not require connection to cooling pipes, and has low operating cost, for cooling the working face of high-temperature tunneling tunnels in underground mines. Summary of the Invention

[0004] The purpose of the present invention is to provide a mobile refrigeration and cooling device and method for high-temperature tunneling, so as to solve the technical problems mentioned in the above background technology.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A mobile refrigeration and cooling device for high-temperature tunneling lanes includes a mobile refrigeration system, an isolation assembly, and a pulling trolley. The isolation assembly is fixedly installed inside the lane to divide the lane into an air guide chamber and a ventilation chamber. The ventilation chamber is equipped with a mobile refrigeration system, which is connected to the pulling trolley via a connecting rod.

[0007] The mobile refrigeration system includes a mobile base, a refrigeration box, an air inlet pipe, an air outlet pipe and a telescopic rod. The bottom of the refrigeration box is connected to the mobile base through the telescopic rod. An air guide bin, an air outlet bin and a refrigeration bin are provided inside the refrigeration box. The air inlet hole on the upper part of the air outlet bin passes through the isolation component through the air inlet pipe and is connected to the air guide chamber. The air guide bin passes through the isolation component through the air outlet pipe and is connected to the air guide chamber. A blower is provided at the other end of the air outlet pipe.

[0008] Furthermore, the isolation assembly includes a wind barrier, a fixed block, a first fixed ear and a winding roller. The first fixed ear is provided at the lower part of the fixed block, and the winding roller is provided in the middle part of the first fixed ear. The wind barrier is provided on the winding roller.

[0009] Furthermore, the wind barrier is made of canvas or polyester fiber mesh, and a fixing bar is provided at the lower part of the wind barrier. A plurality of limiting screws are provided on the fixing bar to facilitate fixing with the ground to form an isolation layer structure.

[0010] Furthermore, a pressure spring is provided on the outer wall of the telescopic rod, a second fixing ear is provided at one end of the movable base, and the second fixing ear is movably connected to the hook of the pulling trolley through a connecting rod.

[0011] Furthermore, the air inlet end of the blower is provided with an air duct, and a first rectangular opening is provided on the outside of the air duct, a filter layer is provided on the inside of the first rectangular opening, a sliding block is provided on the outside of the first rectangular opening, and one side of the sliding block is slidably connected to the track on the air duct through a first sliding groove; a second rectangular opening is provided on the upper part of the sliding block, and a sealing block is provided inside the second rectangular opening, and both sides of the sealing block are connected to the second sliding groove of the second rectangular opening through a slider, and a handle is provided on the upper part of the sealing block.

[0012] Furthermore, a refrigerator is provided inside the refrigeration bin.

[0013] Furthermore, a plurality of rotating wheels are provided at the bottom of the movable base, and at least four rotating wheels are provided.

[0014] Furthermore, a first through hole and a second through hole are provided on the upper portion of the wind barrier.

[0015] The method for using a mobile refrigeration and cooling device for a high-temperature tunnel includes the following steps:

[0016] S1. Install isolation components in the working area inside the tunnel and pull out the wind barrier to secure it to the ground below to form an isolation barrier.

[0017] S2. Pull the trolley to introduce the mobile refrigeration system into the ventilation chamber, and connect the air inlet pipe and the air outlet pipe to the second through hole and the first through hole on the wind barrier respectively;

[0018] S3. Start the refrigerator to guide the cold air from the air inlet pipe into the air guide chamber to cool the working environment.

[0019] Furthermore, in step S1, the distance between the wind barrier and the working surface of the tunnel is 5m; in step S3, the power of the refrigerator is 6.5kw, the air supply speed is 12m / s, the return air rate is controlled by the blower in the air outlet duct, and the pressure of the first hole of the return air outlet is -70Pa.

[0020] Compared with the prior art, the present invention can achieve one of the following beneficial effects:

[0021] 1. The wind barrier effectively reduces the volume of the refrigeration space, significantly reducing the power consumption of the mobile refrigeration system and saving operating electricity costs. The cold air generated by the mobile refrigeration system is transported to the refrigeration space through a flexible cold air duct. The cold air comes into contact with the hot air in the tunnel, exchanging heat and cold, thereby reducing the air temperature in the tunnel. The combination of the return air duct and the blower can change the return air velocity, accelerating the air flow in the refrigeration space and further accelerating the reduction of the air temperature in the refrigeration space, creating and maintaining a comfortable working environment for workers. In addition, the flatbed truck and refrigeration system can be freely moved to meet the needs of the working face. The entire refrigeration device and method can also be used to cool down the heat damage of high-temperature tunnel excavation working faces at different locations.

[0022] 2. The device and method can not only achieve the purpose of preventing and controlling heat damage in high-temperature tunneling tunnels in underground mines, but also reduce the cost of heat damage prevention and control. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a partial schematic diagram of the mobile refrigeration system of the present invention.

[0024] Figure 2 It is a partial structural diagram of the isolation component of the present invention.

[0025] Figure 3 It is a partial structural schematic diagram of the blower of the present invention.

[0026] Figure 4 This is a schematic diagram of wind-guiding cooling on one side of the wind barrier of the present invention.

[0027] In the figure: 1-mobile base, 2-rotating wheel, 3-telescopic rod, 4-refrigeration box, 6-connecting rod, 7-refrigeration chamber, 8-air outlet chamber, 9-air guide chamber, 10-air outlet pipe, 11-air inlet pipe, 12-blower, 14-air guide pipe, 15-track, 16-sliding block, 17-second slide groove, 18-sealing block, 19-handle, 20-fixed block, 21-first fixing ear, 22-wind barrier, 23-first through hole, 24-second through hole, 25-pulling trolley. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0029] Example 1

[0030] A mobile refrigeration and cooling device for a high-temperature tunneling tunnel comprises a mobile refrigeration system, an isolation component and a pulling trolley 25. The isolation component is fixedly arranged inside the tunnel to divide the tunnel into an air guide chamber and a ventilation chamber. The ventilation chamber is provided with a mobile refrigeration system, and the mobile refrigeration system is connected to the pulling trolley 25 through a connecting rod 6; the mobile refrigeration system comprises a mobile base 1, a refrigeration box 4, an air inlet pipe 11, an air outlet pipe 10 and a telescopic rod 3. The bottom of the refrigeration box 4 is connected to the mobile base 1 through the telescopic rod 3. An air guide bin 9, an air outlet bin 8 and a refrigeration bin 7 are provided inside the refrigeration box 4. The air inlet hole on the upper part of the air outlet bin 8 passes through the isolation component through the air inlet pipe 11 and is connected to the air guide chamber. The air guide bin 9 passes through the isolation component through the air outlet pipe 10 and is connected to the air guide chamber. A blower 12 is provided at the other end of the air outlet pipe 10. In the above scheme,

[0031] The refrigeration box 4 is set on a mobile base, which is convenient for pulling the trolley for shipping, and a refrigerator is set in the refrigeration compartment inside the refrigeration box 4, which can connect the generated cold air through the air inlet pipe through the second through hole to the working area of ​​the air guide chamber, and then introduce the cold air into the working area for cooling, and export it through the air outlet pipe for circulating cooling, thereby achieving the purpose of circulating cooling in the excavation tunnel.

[0032] Example 2

[0033] This embodiment further describes the isolation component on the basis of Example 1, and the isolation component includes a wind barrier 22, a fixed block 20, a first fixed ear 21 and a winding roller. The first fixed ear 21 is provided at the lower part of the fixed block 20, and a winding roller is provided in the middle part of the first fixed ear 21, and the wind barrier 22 is provided on the winding roller; the wind barrier 22 is one of canvas or polyester fiber mesh, and a fixing strip is provided at the lower part of the wind barrier 22, and a number of limit screws are provided on the fixing strip to facilitate fixation with the ground to form an isolation layer structure; the wind barrier 22 is made of flexible material and can be rolled up by a winding roller, which is convenient for installation and retraction. When in use, the fixed block 20 is placed at a certain area away from the working surface of the tunnel, the wind barrier 22 is lowered, and fixed to the ground and both sides to achieve isolation. The wind barrier 22 is used to prevent the cold air in the refrigeration space from escaping to the outside, and at the same time prevent the hot air with higher temperature in the non-refrigeration space from diffusing into the refrigeration space, and can achieve a temperature difference of 5°C on both sides of the wind barrier.

[0034] Example 3

[0035] This embodiment further describes the telescopic rod 3 on the basis of Example 1. A pressure spring is provided on the outer wall of the telescopic rod 3, and a second fixing ear is provided at one end of the mobile base 1. The second fixing ear is movably connected to the hook of the pulling trolley 25 through the connecting rod 6; the telescopic rod 3 cooperates with the pressure spring to provide a shock-absorbing effect for the internal refrigeration box.

[0036] Example 4

[0037] This embodiment further describes the blower 12 on the basis of embodiment 1. The air inlet end of the blower 12 is provided with an air duct 14, and the outside of the air duct 14 is provided with a first rectangular opening, the inside of the first rectangular opening is provided with a filter layer, the outside of the first rectangular opening is provided with a sliding block 16, one side of the sliding block 16 is slidably connected to the track 15 on the air duct 14 through a first slide groove; the upper part of the sliding block 16 is provided with a second rectangular opening, and the inside of the second rectangular opening is provided with a sealing block 18, both sides of the sealing block 18 are connected to the second slide groove 17 of the second rectangular opening through a slider, and the upper part of the sealing block 18 is provided with a handle. Hand 19; a refrigerator is provided inside the refrigeration bin 7; a plurality of rotating wheels 2 are provided at the bottom of the mobile base 1, and at least four rotating wheels 2 are provided; a first through hole 23 and a second through hole 24 are provided on the upper part of the wind barrier 22; a filter layer is provided inside the first rectangular opening of the air duct 14, which can be used to absorb dust generated in the working area and play an isolation role, and the sliding block 16 can slide on the first rectangular opening, and a second rectangular opening is provided on the upper part of the sliding block 16, and a sealing block 18 is provided inside. When in use, the sealing block 18 is pulled out and removed by the sliding block 16, so that the operator can replace the internal filter layer.

[0038] Based on Example 1,

[0039] The method for using a mobile refrigeration and cooling device for a high-temperature tunnel includes the following steps:

[0040] S1. Install the isolation assembly in the working area inside the tunnel and pull out the wind barrier 22 to fix it to the lower surface to form an isolation barrier;

[0041] S2. Pull the trolley 25 to introduce the mobile refrigeration system into the ventilation chamber, and connect the air inlet pipe 11 and the air outlet pipe 10 to the second through hole 24 and the first through hole 23 on the wind barrier 22, respectively.

[0042] S3, start the refrigerator to guide the cold air from the air inlet duct 11 into the air guide chamber to cool the working environment;

[0043] In step S1, the distance between the wind barrier 22 and the tunnel working surface is 5m; in step S3, the power of the refrigerator is 6.5kw, the air supply speed is 12m / s, the air outlet pipe 10 controls the return air rate through the blower 12, and the pressure of the first through hole 24 of the return air outlet is -70Pa.

[0044] Although the present invention has been described herein with reference to a number of illustrative embodiments thereof, it will be understood that numerous other modifications and implementations may be devised by those skilled in the art that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the present disclosure, the drawings, and the claims, numerous variations and modifications may be made to the components and / or layout of the subject combination arrangement. In addition to variations and modifications to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A mobile refrigeration and cooling device for high-temperature tunneling, comprising a mobile refrigeration system, an isolation assembly, and a pulling trolley (25), characterized in that: The isolation assembly is fixedly arranged inside the lane to divide the lane into an air guide chamber and a ventilation chamber. A mobile refrigeration system is arranged in the ventilation chamber, and the mobile refrigeration system is connected to the pulling trolley (25) via a connecting rod (6); The mobile refrigeration system comprises a mobile base (1), a refrigeration box (4), an air inlet pipe (11), an air outlet pipe (10) and a telescopic rod (3); the bottom of the refrigeration box (4) is connected to the mobile base (1) via the telescopic rod (3); an air guide bin (9), an air outlet bin (8) and a refrigeration bin (7) are provided inside the refrigeration box (4); an air inlet hole on the upper part of the air outlet bin (8) passes through the isolation component and is connected to the air guide chamber through the air inlet pipe (11); the air guide bin (9) passes through the air outlet hole and passes through the isolation component and is connected to the air guide chamber through the air outlet pipe (10); a blower (12) is provided at the other end of the air outlet pipe (10); The isolation assembly includes a wind barrier (22), a fixed block (20), a first fixed ear (21) and a winding roller, wherein the first fixed ear (21) is provided at the lower portion of the fixed block (20), and a winding roller is provided in the middle portion of the first fixed ear (21), and the wind barrier (22) is provided on the winding roller; A pressure spring is provided on the outer wall of the telescopic rod (3), a second fixing ear is provided at one end of the movable base (1), and the second fixing ear is movably connected to a hook of the pulling trolley (25) through a connecting rod (6); An air guide tube (14) is provided at the air inlet end of the blower (12), and a first rectangular opening is provided on the outside of the air guide tube (14), a filter layer is provided on the inside of the first rectangular opening, a sliding block (16) is provided on the outside of the first rectangular opening, and one side of the sliding block (16) is slidably connected to a track (15) on the air guide tube (14) through a first sliding groove; a second rectangular opening is provided on the upper part of the sliding block (16), and a sealing block (18) is provided inside the second rectangular opening, and both sides of the sealing block (18) are connected to the second sliding groove (17) of the second rectangular opening through a slider, and a handle (19) is provided on the upper part of the sealing block (18); The method for using a mobile refrigeration and cooling device for a high-temperature tunnel includes the following steps: S1. Install the isolation assembly in the working area inside the tunnel and pull out the wind barrier (22) and fix it to the lower surface to form an isolation barrier; S2, introducing the mobile refrigeration system into the ventilation chamber by pulling the trolley (25), and connecting the air inlet pipe (11) and the air outlet pipe (10) to the second through hole (24) and the first through hole (23) on the wind barrier (22), respectively; S3, starting the refrigerator to introduce cold air from the air inlet duct (11) into the interior of the air guide chamber to achieve cooling of the working environment.

2. The mobile refrigeration and cooling device for high-temperature tunneling according to claim 1, characterized in that: The wind barrier (22) is a canvas or polyester fiber mesh. A fixing strip is provided at the lower portion of the wind barrier (22). A plurality of limit screws are provided on the fixing strip to facilitate fixing to the ground to form an isolation barrier.

3. The mobile refrigeration and cooling device for high-temperature tunneling according to claim 1, characterized in that: A refrigerator is provided inside the refrigeration bin (7).

4. The mobile refrigeration and cooling device for high-temperature tunneling according to claim 1, characterized in that: A plurality of rotating wheels (2) are provided at the bottom of the movable base (1), and at least four rotating wheels (2) are provided.

5. The mobile refrigeration and cooling device for high-temperature tunneling according to claim 1, characterized in that: In step S1, the distance between the wind barrier (22) and the tunnel working surface is 5m; in step S3, the power of the refrigerator is 6.5kw, the air supply speed is 12m / s, and the air outlet duct (10) controls the return air speed through the blower (12).

Images