Demisting and dehumidifying ventilation structure for treating mine underground operation point
By combining defogging and dehumidification components with refrigeration equipment at underground mine work sites, the problems of dense fog and excessively high air humidity in underground mines have been solved, thereby improving visibility and equipment stability and ensuring safe production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN LABOUR PROTECTION INST OF NONFERROUS METALS
- Filing Date
- 2025-07-10
- Publication Date
- 2026-05-26
AI Technical Summary
The problem of dense fog and excessively high humidity at underground mine work sites is difficult to effectively handle with existing technologies, resulting in poor visibility, frequent equipment failures, and threats to safe production.
The ventilation structure combines defogging and dehumidification components with refrigeration equipment, including defogging and dehumidification panels, evaporative coolers, and automatic control. It uses a fan to drive airflow for initial defogging and cooling, combined with refrigeration equipment for deep dehumidification, and drains condensate through a drain pipe to achieve air drying.
It improves visibility in the working environment, reduces equipment failures, ensures operational safety, lowers labor maintenance costs, and enhances equipment stability and mine production efficiency.
Smart Images
Figure CN224282695U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anti-fog structure technology in mines, and in particular to a ventilation structure for defogging and dehumidification at underground mine work sites. Background Technology
[0002] In underground mining environments, humidity is often high due to geological structures, mining activities, and the confined space. Significant groundwater seepage, equipment cooling water evaporation, and water vapor generated during blasting operations make it difficult to dissipate quickly, resulting in prolonged high humidity and dense fog in the work area. This environment not only severely impairs workers' visibility, increasing the risk of operational errors and accidents, but also accelerates the corrosion of metal components in equipment, shortens equipment lifespan, and reduces mining efficiency. Therefore, developing an efficient and reliable defogging and dehumidification ventilation structure for underground mining operations is of great significance for ensuring safe production and improving economic efficiency.
[0003] Currently, the most common methods for dehumidification and fog removal in underground mines are traditional ventilation systems, which expel humid air by increasing ventilation volume. Some mines install simple filters or deflectors in the ventilation ducts to try to intercept fog particles and guide airflow. Other mines use natural ventilation combined with local axial flow fans, or place dehumidifiers near the work site for small-scale dehumidification. These technologies mainly rely on simple air replacement or basic physical interception, lacking in-depth humidity treatment.
[0004] However, existing technologies struggle to fundamentally solve the problems of dense fog and excessively high humidity in underground mining operations. While traditional ventilation methods can remove some humid air, the complex underground space easily creates ventilation dead zones, resulting in persistently high humidity in certain areas. Simple filters and deflectors have low efficiency in intercepting fog particles and are insufficient to effectively reduce the air's moisture content. Furthermore, local dehumidifiers have limited processing range and cannot meet the needs of large working areas, leading to poor visibility, frequent equipment malfunctions due to humidity, and seriously threatening personnel safety and the normal production and operation of the mine. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a ventilation structure for defogging and dehumidification at underground mining sites, aiming to improve the problem of heavy fog and excessively high air humidity at underground mining sites.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a ventilation structure for defogging and dehumidification at underground mine work sites, comprising a ventilation pipe, a support box fixedly connected to the lower surface of the ventilation pipe, a defogging and dehumidification component provided on the inner wall of the ventilation pipe, a replacement component provided above the ventilation pipe, and an automated control cabinet provided below the support box;
[0007] The defogging and dehumidification assembly includes a defogging and dehumidification plate disposed on the inner wall of a ventilation duct. One end of the ventilation duct has an air inlet, and the other end has an air outlet. Wire mesh is disposed inside the air inlet and the air outlet. A thermometer is disposed on the outer wall of the ventilation duct. A refrigeration device is disposed on the inner wall of the support box. An evaporative cooler is fixedly connected to the output end of the refrigeration device. A duct fan is disposed on the inner wall of the ventilation duct. A drain pipe is disposed on the lower surface of the ventilation duct.
[0008] Furthermore, the replacement component includes a fixing ring disposed above the ventilation duct. A rotating shaft is rotatably connected to the upper side of the inner wall of the ventilation duct. A cover plate is fixedly connected to the outer wall of the rotating shaft. A fixing hook is fixedly connected to the upper surface of the cover plate. A support block is fixedly connected to the upper surface of the ventilation duct. A moving block is rotatably connected to the inner wall of the support block. A limit groove is formed in the inner wall of the ventilation duct. A handle is fixedly connected to the upper surface of the cover plate.
[0009] Furthermore, the outer wall of the defogging and dehumidification plate is slidably connected to the inside of the limiting groove, which is used to limit the sliding of the defogging and dehumidification plate.
[0010] Furthermore, the outer wall of the fixed ring is disposed on the inner wall of the movable plate block, and the movable plate block is used to drive the fixed ring to rotate.
[0011] Furthermore, the outer wall of the fixing ring is rotatably connected to the inner wall of the fixing hook, and the fixing hook is used to fix the fixing ring.
[0012] Furthermore, the wire mesh is used to ensure that large debris cannot enter the device, and the gaps between the wire meshes are 2 cm.
[0013] Furthermore, the thermometer is used to monitor the ambient humidity at the mine working face.
[0014] Furthermore, the cover plate is rotatably connected to the upper side of the inner wall of the ventilation duct.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this utility model, after the equipment is started, the fan drives the air to flow in the ventilation pipe. The air is first pre-treated by the defogging and dehumidifying plate, and then the refrigeration equipment, together with the evaporative cooler, deeply cools and dehumidifies it. The condensate is discharged through the drain pipe, and the dry air is blown out from the air outlet. The automatic control cabinet regulates the operation of the equipment, which solves the problem of heavy fog and excessive air humidity at the mine underground work site. It achieves the effects of improving the visibility of the working environment, reducing the risk of equipment failure caused by moisture, ensuring the safety of personnel and the stable operation of equipment.
[0017] 2. In this utility model, when it is necessary to replace the defogging and dehumidifying plate, first move the plate moving block to release the fixing ring restriction, separate the fixing hook, open the cover plate, pull out the old plate along the limiting groove, replace the new plate, and then reverse the operation to complete the installation. This achieves the purpose of quick and convenient equipment maintenance, shortens downtime maintenance time, improves equipment utilization efficiency, and reduces labor maintenance costs. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of a ventilation structure for defogging and dehumidification at underground mine work sites proposed in this utility model;
[0019] Figure 2 This is a schematic diagram of the thermometer part of a ventilation structure for defogging and dehumidification at underground mine work sites proposed in this utility model.
[0020] Figure 3 This is a schematic diagram of the duct fan section of a ventilation structure for defogging and dehumidification at underground mine work sites proposed in this utility model.
[0021] Figure 4 This is a schematic diagram of a refrigeration equipment component of a ventilation structure for defogging and dehumidification at underground mining sites, as proposed in this utility model.
[0022] Figure 5 for Figure 2 Enlarged diagram of point A in the middle.
[0023] Legend:
[0024] 1. Support box; 2. Ventilation duct; 3. Automation control cabinet; 4. Drainage pipe; 5. Wire mesh; 6. Air inlet; 7. Air outlet; 8. Thermometer; 9. Duct fan; 10. Cover plate; 11. Limiting groove; 12. Rotating shaft; 13. Demisting and dehumidifying plate; 14. Refrigeration equipment; 15. Evaporative cooler; 16. Handle; 17. Fixing hook; 18. Fixing ring; 19. Support block; 20. Movable block. Detailed Implementation
[0025] 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.
[0026] Reference Figures 1-3An embodiment of this utility model is provided: a ventilation structure for defogging and dehumidification at underground mine work sites, including a ventilation pipe 2, a support box 1 fixedly connected to the lower surface of the ventilation pipe 2, a defogging and dehumidification component provided on the inner wall of the ventilation pipe 2, a replacement component provided above the ventilation pipe 2, and an automatic control cabinet 3 provided below the support box 1.
[0027] The defogging and dehumidification component includes a defogging and dehumidification plate 13, which is installed on the inner wall of the ventilation duct 2. One end of the ventilation duct 2 is provided with an air inlet 6, and the other end is provided with an air outlet 7. Wire mesh 5 is installed inside the air inlet 6 and the air outlet 7. A thermometer 8 is installed on the outer wall of the ventilation duct 2. A refrigeration device 14, model DLSB-5 / 10, with a cooling capacity of 1213-290w and a flow rate of 35L / min, is installed on the inner wall of the support box 1. An evaporative cooler 15 is fixedly connected to the output end of the refrigeration device 14. It is made using 6.4mm*0.8mm copper pipe, which has high heat transfer efficiency and is not easily damaged. A duct fan 9, model JK58~1NO.4.5, with a motor power of 11kw, an air volume of 3~5m3 / s, and a pressure of 1295~2093Pa, is installed on the inner wall of the ventilation duct 2. A drain pipe 4 is installed on the lower surface of the ventilation duct 2.
[0028] Specifically, after the equipment is started, the duct fan 9 in the ventilation duct 2 drives the air to flow. The air first passes through the demisting and dehumidifying plate 13 for preliminary demisting and dehumidification treatment. At the same time, the refrigeration equipment 14 in the support box 1 drives the evaporative cooler 15 to operate, further cooling the air and causing water vapor to condense into liquid water, which is discharged through the drain pipe 4 on the lower surface of the ventilation duct 2. The treated dry air is blown out from the air outlet 7. The wire mesh 5 of the air outlet 7 prevents debris from entering in the opposite direction. The thermometer 8 monitors the ambient humidity in real time, and the automatic control cabinet 3 controls the overall operation of the equipment.
[0029] Reference Figures 1-5 The replacement components include a retaining ring 18, which is positioned above the ventilation duct 2. A rotating shaft 12 is rotatably connected to the upper side of the inner wall of the ventilation duct 2. A cover plate 10 is fixedly connected to the outer wall of the rotating shaft 12. A retaining hook 17 is fixedly connected to the upper surface of the cover plate 10. A support block 19 is fixedly connected to the upper surface of the ventilation duct 2. A moving block 20 is rotatably connected to the inner wall of the support block 19. A limit groove 11 is formed in the inner wall of the ventilation duct 2. A handle 16 is fixedly connected to the upper surface of the cover plate 10. The outer wall of the demisting and dehumidifying plate 13 is slidably connected to the limit groove 11. Inside, the limiting groove 11 is used to limit the sliding of the demisting and dehumidifying plate 13. The outer wall of the fixing ring 18 is set on the inner wall of the moving block 20. The moving block 20 is used to drive the fixing ring 18 to rotate. The outer wall of the fixing ring 18 is rotatably connected to the inner wall of the fixing hook 17. The fixing hook 17 is used to fix the fixing ring 18. The wire mesh 5 is used to ensure that large debris cannot enter the device. The gap between the wire mesh 5 is 2cm. The thermometer 8 is used to monitor the ambient humidity of the mine working face. The cover plate 10 is rotatably connected to the upper side of the inner wall of the ventilation pipe 2.
[0030] Specifically, when it is necessary to replace the defogging and dehumidifying plate 13, move the plate moving block 20 to make it rotate around the support block 19, release the restriction on the fixing ring 18, separate the fixing hook 17 from the fixing ring 18, pull the handle 16 to open the cover plate 10, pull out the defogging and dehumidifying plate 13 along the limiting groove 11 for replacement, and then reverse the operation to complete the installation.
[0031] Working principle: When a ventilation structure for defogging and dehumidification at underground mine work sites is needed, after startup, the air is driven to flow in the ventilation pipe 2 and undergoes preliminary defogging and dehumidification through the internal defogging and dehumidification plate 13. At the same time, the refrigeration equipment 14 in the support box 1 drives the evaporative cooler 15 to work, further cooling and dehumidifying the air, causing water vapor to condense. The condensed water is discharged through the drain pipe 4 on the lower surface of the ventilation pipe 2. The treated dry air is blown out from the air outlet 7. The wire mesh 5 of the air outlet 7 prevents debris from entering in reverse. The thermometer 8 monitors the ambient humidity, and the automatic control cabinet 3 controls the operation of the entire equipment.
[0032] In addition, when it is necessary to replace the defogging and dehumidifying plate 13, move the movable block 20 to separate the fixing hook 17 from the fixing ring 18. The movable block 20 rotates around the support block 19 to release the restriction on the fixing ring 18. Pull the handle 16 on the cover plate 10 to rotate the cover plate 10 around the pivot 12 to open it. At this time, the defogging and dehumidifying plate 13 can be pulled out along the limiting groove 11 for replacement. After the replacement is completed, reverse the above steps to close the cover plate 10 and re-hook the fixing hook 17 onto the fixing ring 18 to complete the replacement of the defogging and dehumidifying plate 13.
[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A ventilation structure for defogging and dehumidification at underground mine work sites, comprising a ventilation pipe (2), characterized in that: A support box (1) is fixedly connected to the lower surface of the ventilation pipe (2), a defogging and dehumidification component is provided on the inner wall of the ventilation pipe (2), a replacement component is provided above the ventilation pipe (2), and an automatic control cabinet (3) is provided below the support box (1). The defogging and dehumidification assembly includes a defogging and dehumidification plate (13), which is installed on the inner wall of the ventilation pipe (2). One end of the ventilation pipe (2) is provided with an air inlet (6), and the other end of the ventilation pipe (2) is provided with an air outlet (7). Wire mesh (5) is installed inside the air inlet (6) and the air outlet (7). A thermometer (8) is installed on the outer wall of the ventilation pipe (2). A refrigeration device (14) is installed on the inner wall of the support box (1). An evaporative cooler (15) is fixedly connected to the output end of the refrigeration device (14). A duct fan (9) is installed on the inner wall of the ventilation pipe (2). A drain pipe (4) is installed on the lower surface of the ventilation pipe (2).
2. The ventilation structure for defogging and dehumidification at underground mine work sites according to claim 1, characterized in that: The replacement component includes a fixing ring (18) which is positioned above the ventilation pipe (2). A rotating shaft (12) is rotatably connected to the upper side of the inner wall of the ventilation pipe (2). A cover plate (10) is fixedly connected to the outer wall of the rotating shaft (12). A fixing hook (17) is fixedly connected to the upper surface of the cover plate (10). A support block (19) is fixedly connected to the upper surface of the ventilation pipe (2). A moving block (20) is rotatably connected to the inner wall of the support block (19). A limit groove (11) is provided on the inner wall of the ventilation pipe (2). A handle (16) is fixedly connected to the upper surface of the cover plate (10).
3. The ventilation structure for defogging and dehumidification at underground mine work sites according to claim 2, characterized in that: The outer wall of the defogging and dehumidifying plate (13) is slidably connected to the inside of the limiting groove (11), which is used to limit the sliding of the defogging and dehumidifying plate (13).
4. The ventilation structure for defogging and dehumidification at underground mine work sites according to claim 2, characterized in that: The outer wall of the fixed ring (18) is disposed on the inner wall of the movable block (20), and the movable block (20) is used to drive the fixed ring (18) to rotate.
5. The ventilation structure for defogging and dehumidification at underground mine work sites according to claim 2, characterized in that: The outer wall of the fixing ring (18) is rotatably connected to the inner wall of the fixing hook (17), and the fixing hook (17) is used to fix the fixing ring (18).
6. The ventilation structure for defogging and dehumidification at underground mine work sites according to claim 1, characterized in that: The wire mesh (5) is used to ensure that large debris cannot enter the device, and the gap between the wire mesh (5) is 2cm.
7. The ventilation structure for defogging and dehumidification at underground mine work sites according to claim 1, characterized in that: The thermometer (8) is used to monitor the ambient humidity at the mine working face.
8. The ventilation structure for defogging and dehumidification at underground mine work sites according to claim 2, characterized in that: The cover plate (10) is rotatably connected to the upper side of the inner wall of the ventilation pipe (2).