Single-head tunneling high-temperature and high-humidity roadway cooling and dehumidifying equipment

Abstract

The utility model provides cooling and dehumidifying equipment for a single-head tunneling high-temperature and high-humidity roadway, and belongs to the technical field of mine cooling and dehumidifying. The cooling and dehumidifying equipment for the single-head tunneling high-temperature and high-humidity roadway comprises a dehumidifying mechanism, a feeding mechanism, a cooling mechanism and a movable plate trailer. Wherein the dehumidification mechanism comprises a plurality of dehumidification bags arranged on the roadway wall; the feeding mechanism comprises a compressed air feeding machine and a feeding pipe which is communicated with the compressed air feeding machine and the dehumidification bag; the cooling mechanism comprises a cooling machine and a cooling pipe connected with the cooling machine and the dehumidification bag; and the compressed air feeding machine and the cooling machine are arranged on the movable plate trailer. According to the cooling and dehumidifying equipment for the blind-heading high-temperature and high-humidity roadway, the dehumidifying bags can be increased, decreased, combined and spliced according to site conditions, the blind-heading working face is effectively cooled and dehumidified, the equipment can be detached and move forwards along with the working face, and site construction is facilitated; in addition, raw materials are low in price and can be recycled.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mine cooling and dehumidification, in particular to a cooling and dehumidification equipment for a high-temperature and high-humidity roadway of a single heading. BACKGROUND

[0002] With large-scale development of domestic mineral resources, most of the shallow resources of mines have been exhausted. The resource development depth gradually moves down, and the mining depth of some mines has far exceeded 1000 meters. With the increase of development depth, the ground temperature gradually rises. When the depth reaches 800m, the rock temperature of most mines has reached nearly 40℃. For metal mines, the heading and mining technology is still not able to realize comprehensive mechanized mining due to the influence of the rock properties of surrounding rock and ore body. Therefore, in the environment with such high surrounding rock temperature, combined with the temperature generated by explosive blasting, the temperature of air compression and the temperature generated by the operation of mechanized equipment, the static working environment temperature will be far more than 40℃. Although there are ventilation engineering or refrigeration measures, the environmental temperature of the single heading face will still be high. At the same time, before the explosive blasting operation of the metal mine, drilling operation will be carried out, and a large amount of cooling water will be used for drill bit cooling and flushing of rock debris. Therefore, in the high-temperature and high-humidity environment, the labor efficiency of workers will be greatly reduced, which greatly affects the safety production of mines and even endangers the health of workers.

[0003] At present, the cooling measures used for the single heading working face are basically divided into two categories. One is to improve the ventilation system and increase the air volume or air speed. The other is to use cooling facilities for cold air cooling. For the single heading face, the improvement of the ventilation mode can improve the working environment to a certain extent, but as the working distance increases, the improvement effect becomes worse and worse. The cooling facilities need a lot of pre-investment and need to be matched with relatively perfect on-site engineering to realize.

[0004] Therefore, it is necessary to provide a cooling and dehumidification equipment for a high-temperature and high-humidity roadway of a single heading, to solve the above problems. SUMMARY

[0005] In view of the problems in the background art, the present application provides a cooling and dehumidification equipment for a high-temperature and high-humidity roadway of a single heading, which is composed of a dehumidification mechanism, a feeding mechanism, a cooling mechanism and a mobile plate car. The dehumidification bag can be combined and assembled according to the on-site situation, the single heading working face can be effectively cooled and dehumidified, and the equipment can be disassembled and moved forward with the working face, which is convenient for on-site construction.

[0006] This application provides a cooling and dehumidification device for high-temperature and high-humidity roadways in single-heading tunneling, including a dehumidification mechanism, a feeding mechanism, a cooling mechanism, and a mobile trolley; wherein, the dehumidification mechanism includes a plurality of dehumidification bags disposed on the roadway wall; the feeding mechanism includes a compressed air feeder and a feeding pipe connecting the compressed air feeder and the dehumidification bags; the cooling mechanism includes a cooler and a cooling pipe connecting the cooler and the dehumidification bags; the compressed air feeder and the cooler are placed on the mobile trolley.

[0007] In the technical solution of this application embodiment, by setting up a dehumidification mechanism, a feeding mechanism, and a cooling mechanism, the three work together to greatly reduce the temperature and humidity in the environment. In addition, the dehumidification bags can be combined and assembled according to the site conditions, and can be used for targeted cooling and dehumidification of the single-heading tunneling face. Moreover, the dehumidification mechanism can be disassembled, and the compressed air feeder and cooler are placed on a mobile cart, which can be moved forward with the working face to facilitate on-site construction. The equipment has a simple structure, is easy to install, greatly improves the efficiency of dehumidification and cooling, and improves the working environment.

[0008] In some embodiments, the dehumidifier bag has a rectangular longitudinal section, an arched transverse section, and a planar contact surface with the tunnel wall.

[0009] In this embodiment, the contact surface between the dehumidifying bag and the tunnel wall is designed as a plane, which can better contact the tunnel wall and increase the stability of the fixation; the transverse cross section of the dehumidifying bag is designed as an arch, which can increase the water absorption area.

[0010] In some embodiments, the dehumidifier bag is provided with hanging holes at both ends.

[0011] In this embodiment, the dehumidifier bag is provided with hanging holes at both ends, and can be fixed to the tunnel wall by setting hooks on the tunnel wall.

[0012] In some embodiments, the side of the dehumidifying bag that contacts the tunnel wall is a waterproof cloth, and the side away from the tunnel wall is a one-way permeable membrane.

[0013] In this embodiment, the side and sides in contact with the tunnel wall are designed as waterproof fabric, giving the dehumidifier bag good tear resistance and allowing it to hang well on the tunnel wall while preventing water from entering the dehumidifier bag through cracks in the tunnel wall. The side away from the tunnel wall is made of a one-way permeable membrane, allowing moisture in the air to condense and pass through the one-way permeable membrane into the dehumidifier bag, while water in the dehumidifier bag cannot enter the outside.

[0014] In some embodiments, the dehumidifier bag has a feed inlet, a liquid inlet, and a liquid outlet on the side away from the end.

[0015] In this embodiment, an inlet, a liquid inlet, and a liquid outlet are provided on the side of the dehumidification bag, which can be connected to the feeding mechanism and the cooling mechanism through pipes to deliver water-absorbing particles into the dehumidification bag and circulate for cooling and dehumidification.

[0016] In some embodiments, the cooling pipe includes a first cooling pipe disposed inside the dehumidifying bag and a second cooling pipe disposed outside the dehumidifying bag; the first cooling pipe and the second cooling pipe are connected; the first cooling pipe is U-shaped; the first cooling pipe enters from the liquid inlet, passes radially through the dehumidifying bag, and exits from the liquid outlet.

[0017] In this embodiment, the U-shaped first cooling pipe that passes radially through the dehumidification bag is connected to the second cooling pipe, which can realize the cycle of cooling and dehumidification of the dehumidification bag.

[0018] In some embodiments, the feed tube is connected to the feed inlet.

[0019] In this embodiment, the feeding pipe can deliver dehumidifying particles into the fixed dehumidifying bags respectively.

[0020] In some embodiments, the compressed air feeder contains water-absorbing granular material.

[0021] In this embodiment, the water-absorbing granular material in the compressed air feeder can be conveyed to the dehumidification bag through the feeding pipe to absorb the moisture that condenses in the air and enters the dehumidification bag.

[0022] In some embodiments, the cooler includes a liquid nitrogen compressor or a Freon compressor.

[0023] In this embodiment, a nitrogen compressor or a Freon compressor can cool the water-absorbing particles in the dehumidification bag through a condenser tube. Since water has a high specific heat capacity, its heat absorption capacity increases significantly when the temperature decreases. As the dehumidification bag cools down, the water vapor in the tunnel condenses into water droplets and enters the dehumidification bag through a one-way moisture-wicking membrane, thus completing the cooling and dehumidification of the tunnel.

[0024] The following is an overview of the technical solution of this application. In order to make the technical means of this application clearer and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of this application, the accompanying drawings used in this application will be briefly described below. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0026] Fig. 1 This is a schematic diagram of the plan layout of the cooling and dehumidification equipment for a high-temperature and high-humidity roadway in a single-heading tunnel, as provided in an embodiment of this application.

[0027] Fig. 2 A top view of the dehumidification bag of the cooling and dehumidification equipment for high-temperature and high-humidity roadways in single-heading tunnels provided in the embodiments of this application.

[0028] Fig. 3 Left view of the dehumidification bag of the cooling and dehumidification equipment for high-temperature and high-humidity roadways in single-heading tunnels provided in the embodiments of this application.

[0029] Explanation of reference numerals in the attached drawings: 11. Cooler; 12. First cooling pipe; 13. Second cooling pipe; 21. Compressed air feeder; 22. Feeding pipe; 31. Dehumidifying bag; 32. Hanging hole; 33. Feed inlet; 34. Liquid inlet; 35. Liquid outlet; 4. Mobile trolley; 5. Hook. Detailed Implementation

[0030] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0032] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0033] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0034] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms "installation," "connection," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0035] Currently, methods for cooling and dehumidifying high-temperature and high-humidity roadways in single-heading tunnels have limitations: the improvement effect decreases as the working distance increases, or the cooling facilities require relatively complete on-site engineering support, necessitating significant upfront investment.

[0036] To address the technical issues of poor cooling and dehumidification effects and high initial investment in regulating reservoirs, this application provides a cooling and dehumidification device for high-temperature and high-humidity roadways in single-heading tunnels. This device allows for the combination and assembly of dehumidification bags according to site conditions, effectively cooling and dehumidifying the single-heading tunneling face. It can also be disassembled and moved forward with the working face, featuring a simple structure and convenient on-site construction.

[0037] The present application will be further described below with reference to specific implementation methods.

[0038] Please see Figs. 1-3 This application provides a cooling and dehumidification device for high-temperature and high-humidity roadways in single-heading tunneling, including a dehumidification mechanism, a feeding mechanism, a cooling mechanism, and a mobile trolley 4; wherein, the dehumidification mechanism includes a plurality of dehumidification bags 31 disposed on the roadway wall; the feeding mechanism includes a compressed air feeder 21 and a feeding pipe 22 connecting the compressed air feeder 21 and the dehumidification bags 31; the cooling mechanism includes a cooler 11 and a cooling pipe connecting the cooler 11 and the dehumidification bags 31; the compressed air feeder 21 and the cooler 11 are placed on the mobile trolley 4.

[0039] In different embodiments of this application, the number of dehumidifying bags 31 can be adjusted according to actual needs.

[0040] By employing the aforementioned methods, a dehumidification mechanism, a feeding mechanism, and a cooling mechanism are set up, and the three work together to significantly reduce the temperature and humidity in the environment. Furthermore, the dehumidification bag 31 can be assembled and combined according to site conditions, allowing for targeted cooling and dehumidification of the single-heading tunneling face. The dehumidification mechanism is also detachable; the compressed air feeder 21 and the cooler 11 are mounted on a mobile cart 4, allowing them to move forward with the working face for convenient on-site construction. This equipment has a simple structure, is easy to install, greatly improves dehumidification and cooling efficiency, and enhances the working environment.

[0041] Furthermore, in this embodiment, the dehumidifying bag 31 has a rectangular longitudinal section, an arched transverse section, and a planar contact surface with the tunnel wall.

[0042] By designing the contact surface between the dehumidifying bag 31 and the tunnel wall as a plane, it can better contact the tunnel wall and increase the stability of the fixation; by designing the transverse cross section of the dehumidifying bag 31 as an arch, it can increase the water absorption area.

[0043] Furthermore, in this embodiment of the application, the dehumidifying bag 31 is provided with hanging holes 32 at both ends.

[0044] In the above manner, the dehumidifying bag 31 has hanging holes 32 at both ends, and can be fixed to the tunnel wall by setting hooks 5 on the tunnel wall.

[0045] Furthermore, in this embodiment, the side of the dehumidifying bag 31 that contacts the tunnel wall is made of waterproof cloth, and the side away from the tunnel wall is made of one-way permeable membrane.

[0046] By using the above method, the side and sides in contact with the tunnel wall are designed as waterproof cloth, giving the dehumidifier bag 31 good tear resistance, allowing it to hang well on the tunnel wall, while preventing water from entering the dehumidifier bag 31 through cracks in the tunnel wall; the side away from the tunnel wall is made of a one-way permeable membrane, allowing moisture in the air to condense and pass through the one-way permeable membrane into the dehumidifier bag 31, while water in the dehumidifier bag 31 cannot enter the outside.

[0047] Furthermore, in this embodiment of the application, the dehumidifying bag 31 is provided with a feed inlet 33, a liquid inlet 34 and a liquid outlet 35 on the side away from the end.

[0048] In this way, a feed inlet 33, a liquid inlet 34, and a liquid outlet 35 are provided on the side of the dehumidification bag 31. These can be connected to the compressed air feeder 21 and the cooler 11 through pipes to convey water-absorbing particles into the dehumidification bag 31 and circulate for cooling and dehumidification.

[0049] Furthermore, in this embodiment, the one-way permeable membrane in the dehumidifying bag 31 is detachable.

[0050] By using the above method, the one-way permeable membrane is designed to be detachable, which facilitates the removal of water-absorbing particles in the dehumidification bag 31.

[0051] Furthermore, in this embodiment of the application, the cooling pipe includes a first cooling pipe 12 disposed inside the dehumidification bag 31 and a second cooling pipe 13 disposed outside the dehumidification bag 31; the first cooling pipe 12 and the second cooling pipe 13 are connected; the first cooling pipe 12 is U-shaped; the first cooling pipe 12 enters from the liquid inlet 34, passes radially through the dehumidification bag 31, and exits from the liquid outlet 35.

[0052] More specifically, the first cooling pipe 12 includes several U-shaped cooling pipes arranged in parallel with each other, which can be respectively set in different positions of the dehumidification bag 31 and in different dehumidification bags 31; the second cooling pipe 13 includes an inlet pipe and an outlet pipe, the inlet pipe is connected to one end of each U-shaped cooling pipe located at the inlet 34, and the outlet pipe is connected to one end of each U-shaped cooling pipe located at the outlet 35.

[0053] In the above manner, the cooling medium in the cooler 11 can be input into the first cooling pipe 12 through the liquid inlet pipe of the second cooling pipe 13, and enter from the liquid inlet end of different U-shaped cooling pipes. It passes radially through the dehumidification bag 31 to achieve cooling and dehumidification of the dehumidification bag 31. Then, it flows into the liquid outlet pipe of the second cooling pipe 13 from the liquid outlet end of the U-shaped cooling pipe and flows back to the cooler 11, thereby realizing the simultaneous cooling and dehumidification cycle of multiple dehumidification bags 31.

[0054] Furthermore, in this embodiment of the application, the feeding pipe 22 is connected to the inlet 33.

[0055] Furthermore, in the embodiments of this application, the feeding pipe 22 is rotatably connected to the compressed air feeder 21, or the feeding pipe 22 is a flexible hose.

[0056] By designing the feeding pipe 22 as a rotating connection or a flexible hose, dehumidifying particles can be conveyed into the fixed dehumidifying bag 31.

[0057] Furthermore, in this embodiment of the application, the compressed air feeder 21 contains water-absorbing granular material.

[0058] In the above manner, the water-absorbing granular material in the compressed air feeder 21 can be transported to the dehumidification bag 31 through the feed pipe 22 to absorb the moisture that condenses in the air and enters the dehumidification bag 31.

[0059] Furthermore, in this embodiment of the application, the cooler 11 includes a liquid nitrogen compressor or a Freon compressor.

[0060] In the above manner, the nitrogen compressor or Freon compressor can cool down the water-absorbing particles in the dehumidification bag 31 through the condenser tube. Since water has a large specific heat capacity, its heat absorption capacity also increases greatly when the temperature decreases. As the dehumidification bag 31 cools down, the water vapor in the tunnel condenses into water droplets and enters the dehumidification bag 31 through the one-way moisture-conducting membrane, thus completing the cooling and dehumidification of the tunnel.

[0061] The working process of the cooling and dehumidification equipment for high-temperature and high-humidity roadways in single-heading tunnels provided in this application is roughly as follows:

[0062] First, hooks 5 are installed on the tunnel wall according to the length and number of dehumidifying bags 31. The hanging holes 32 at both ends of the dehumidifying bags 31 are hung on the hooks 5. The liquid inlet and liquid outlet of the first cooling pipe 12 are passed through the liquid inlet 34 and liquid outlet 35 respectively, and connected to the liquid inlet and liquid outlet of the second cooling pipe 13 respectively. After the arrangement is completed, the water-absorbing particles are put into the compressed air feeder 21. The compressed air feeder 21 feeds the water-absorbing particles into each dehumidifying bag 31 through the feed pipe 22. After the dehumidifying bag 31 is full of water-absorbing particles, the feeding is stopped. Then, the liquid nitrogen cooler 11 is turned on, and liquid nitrogen is transported through the inlet pipe of the second cooling pipe 13 to the first cooling pipe 12, then flows into the outlet pipe of the second cooling pipe 13, and returns to the liquid nitrogen cooler 11. The first cooling pipe 12 inside the dehumidification bag 31 cools down the water-absorbing particles in the dehumidification bag 31. At this time, the free water vapor in the roadway pre-condenses on the surface of the dehumidification bag 31 and enters the dehumidification bag 31 through the one-way permeable membrane, where it is absorbed by the water-absorbing particles. When the water-absorbing particles in the dehumidification bag 31 reach saturation, the one-way permeable membrane in the dehumidification bag 31 is removed, and the water-absorbing particles in the dehumidification bag 31 are placed on the roadway floor. Then, a loader is used to collect them and send them to the ground for high-temperature dehydration to form a recyclable product. As the working face advances, the hook 5 can be removed and fixed in the new working area. At the same time, the mobile trolley 4 is moved forward and the device is re-fixed and connected. The above cooling and dehumidification steps are repeated to continue the cooling and dehumidification treatment of the working face.

[0063] It should be noted that this application is not limited to the above-described embodiments. The above embodiments are merely examples, and any embodiments with the same structure and effect as the technical concept within the scope of this application are included in the technical scope of this application. Furthermore, various modifications that can be conceived by those skilled in the art to the embodiments, and other ways of constructing by combining some of the constituent elements of the embodiments, without departing from the spirit of this application, are also included in the scope of this application.

Claims

1. A cooling and dehumidification device for high-temperature and high-humidity roadways in single-heading tunneling, characterized in that, The system includes a dehumidification mechanism, a feeding mechanism, a cooling mechanism, and a mobile trolley; wherein, the dehumidification mechanism includes a plurality of dehumidification bags disposed on the tunnel wall; the feeding mechanism includes a compressed air feeder and a feeding pipe connecting the compressed air feeder and the dehumidification bags; the cooling mechanism includes a cooler and a cooling pipe connecting the cooler and the dehumidification bags; the compressed air feeder and the cooler are mounted on the mobile trolley.

2. The cooling and dehumidification equipment for high-temperature and high-humidity roadways in single-heading tunneling according to claim 1, characterized in that, The dehumidifier bag has a rectangular longitudinal section and an arched transverse section, with a planar contact surface with the tunnel wall.

3. The cooling and dehumidification equipment for high-temperature and high-humidity roadways in single-heading tunneling according to claim 2, characterized in that, The dehumidifier bag has hanging holes at both ends.

4. The cooling and dehumidification equipment for high-temperature and high-humidity roadways in single-heading tunneling according to claim 3, characterized in that, The side of the dehumidifier bag that contacts the tunnel wall is made of waterproof fabric, while the side away from the tunnel wall is made of one-way permeable membrane.

5. The cooling and dehumidification equipment for high-temperature and high-humidity roadways in single-heading tunneling according to claim 4, characterized in that, The dehumidifier bag has a feed inlet, a liquid inlet, and a liquid outlet on the side away from the end.

6. The cooling and dehumidification equipment for high-temperature and high-humidity roadways in single-heading tunneling according to claim 5, characterized in that, The cooling pipe includes a first cooling pipe disposed inside the dehumidifying bag and a second cooling pipe disposed outside the dehumidifying bag; the first cooling pipe and the second cooling pipe are connected.

7. The cooling and dehumidification equipment for high-temperature and high-humidity roadways in single-heading tunneling according to claim 6, characterized in that, The first cooling pipe is U-shaped; the first cooling pipe enters from the liquid inlet, passes radially through the dehumidification bag, and exits from the liquid outlet.

8. The cooling and dehumidification equipment for high-temperature and high-humidity roadways in single-heading tunneling according to claim 5, characterized in that, The feeding pipe is connected to the inlet.

9. The cooling and dehumidification equipment for high-temperature and high-humidity roadways in single-heading tunneling according to claim 1, characterized in that, The compressed air feeder contains water-absorbing granular material.

10. A cooling and dehumidification device for high-temperature and high-humidity roadways in single-heading tunneling according to claim 1, characterized in that, The cooler includes a liquid nitrogen compressor or a Freon compressor.

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