Underground mine ventilation device

Abstract

The utility model discloses an underground mine ventilation device which comprises a ventilator, an air outlet pipe is arranged at the top of the front side of the ventilator, an air inlet pipe is arranged on the right side of the ventilator, a filtering piece is arranged at the end of the air inlet pipe and is designed to be of a structure with more than half of a sphere, and a fixing mechanism is arranged between the filtering piece and the air inlet pipe. According to the underground mine ventilation device, the filtering part of the more than half spherical structure is arranged, so that the filtering area is greatly increased, and compared with a traditional filtering part, the filtering efficiency is effectively improved; through the fixing mechanism with the locking ring matched with the positioning ring, the filtering piece can be rapidly mounted or dismounted only by rotating the driving rod, operation is easy and convenient, and the maintenance difficulty and time cost are reduced.

Description

A ventilation device for underground mines Technical Field

[0001] This utility model relates to the field of mine safety equipment technology, specifically to an underground mine ventilation device. Background Technology

[0002] Ventilation systems in underground mines are key equipment for ensuring safe production and a good working environment during underground mining operations. Their main functions are to deliver fresh air to the underground working area, remove dust and harmful gases (such as carbon monoxide and hydrogen sulfide), and regulate the temperature and humidity underground.

[0003] However, existing underground mine ventilation systems have many problems. On the one hand, the filter components at the air inlet mostly adopt planar or conventional three-dimensional structures, with limited filtration area. After prolonged use, they are easily clogged by dust, leading to a sharp increase in ventilation resistance, a significant reduction in ventilation efficiency, and even affecting the normal operation of the ventilation system. Furthermore, existing filter components are inconvenient to disassemble and clean, requiring substantial manpower and time. On the other hand, cleaning the filter components usually requires shutting down the system, which interrupts underground ventilation, worsens the underground working environment, and increases safety hazards. To address these problems, innovative designs based on existing underground mine ventilation systems are urgently needed. Summary of the Invention

[0004] The purpose of this invention is to provide a ventilation device for underground mines to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an underground mine ventilation device, including a ventilator, an air outlet pipe is provided at the top of the front side of the ventilator, and an air inlet pipe is provided on the right side of the ventilator. A filter element is provided at the end of the air inlet pipe, and the filter element is designed as a semi-spherical structure. A fixing mechanism is provided between the filter element and the air inlet pipe, and a cleaning mechanism for the filter element is provided on the outside of the air inlet pipe.

[0006] Preferably, the fixing mechanism includes a locking ring, a positioning ring is nested and fixed on the outer wall of the air intake pipe near the end of the air intake pipe, and a locking ring is threaded on the outer end of the air intake pipe, and one side of the locking ring is in contact with one side of the positioning ring, and the outer wall of the locking ring is fixedly connected to the inner side of the filter opening.

[0007] Preferably, a drive rod is fixed to the outer wall of the locking ring, and the drive rod is distributed at equal angles about the central axis of the locking ring.

[0008] Preferably, the cleaning mechanism includes a movable ring, and the movable ring is rotatably mounted on the outer wall of the air intake pipe via a bearing. A hollow gear is fixed on one side of the movable ring, and the movable ring and the hollow gear are coaxially arranged. A drive mechanism is provided on one side of the hollow gear. A slot is opened on one side of the movable ring, and one end of a locking rod is engaged inside the slot. The locking rod is fixedly connected to the movable ring by bolts, and a frame is fixed to the other end of the locking rod. At the same time, a brush is fixed on the inner side of the frame.

[0009] Preferably, the drive mechanism includes a solid gear, one side of which meshes with the solid gear, and the middle part of the solid gear is fixedly connected to the output end of the motor, and the outer wall of the motor is fixed to the outer wall of the air intake pipe by a fixing bracket.

[0010] Preferably, the frame and brush are both arc-shaped, and the frame, brush and filter are coaxial with each other, with the inner side of the brush in contact with the outer side of the filter.

[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows: This underground mine ventilation device is equipped with a filter element with a semi-spherical structure, which significantly increases the filtration area and effectively improves filtration efficiency compared with traditional filter components. The fixing mechanism, which uses a locking ring and a positioning ring, allows for quick installation or removal of the filter element simply by rotating the drive rod, making operation simple and convenient, reducing maintenance difficulty and time costs. During operation, the cleaning mechanism uses a motor-driven solid gear and hollow gear to rotate the movable ring, enabling the brush to clean the filter element online, avoiding downtime for filter cleaning, ensuring continuous underground ventilation, and improving operational safety. The arc-shaped frame and brush, coaxial with the filter element, can closely fit the surface of the filter element, ensuring comprehensive and thorough cleaning without dead angles, effectively removing adhering dust. Combined with the increased filtration area of ​​the filter element, dust adhesion is more dispersed, further reducing the risk of clogging, extending the service life of the filter element, and maintaining the efficient operation of the ventilation device. Attached Figure Description

[0012] Figure 1 is a schematic diagram of the movable ring structure from a first-view perspective of this utility model;

[0013] Figure 2 is a schematic diagram of the second perspective structure of the movable ring of this utility model;

[0014] Figure 3 is a partial cross-sectional view of the intake pipe of this utility model;

[0015] Figure 4 is an enlarged structural schematic diagram of point A in Figure 3 of this utility model.

[0016] In the diagram: 1. Ventilator; 2. Inlet pipe; 3. Outlet pipe; 4. Filter element; 5. Locking ring; 6. Drive rod; 7. Positioning ring; 8. Moving ring; 9. Hollow gear; 10. Solid gear; 11. Motor; 12. Slot; 13. Locking rod; 14. Bolt; 15. Frame; 16. Brush. Detailed Implementation

[0017] 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.

[0018] Please refer to Figures 1-4. This utility model provides a technical solution: an underground mine ventilation device, including a ventilator 1, an air outlet pipe 3 is provided on the top of the front side of the ventilator 1, and an air inlet pipe 2 is provided on the right side of the ventilator 1. A filter element 4 is provided at the end of the air inlet pipe 2, and the filter element 4 is designed as a semi-spherical structure. A fixing mechanism is provided between the filter element 4 and the air inlet pipe 2, and a cleaning mechanism for the filter element 4 is provided on the outside of the air inlet pipe 2.

[0019] The fixing mechanism includes a locking ring 5. A positioning ring 7 is nested and fixed to the outer wall of the air intake pipe 2 near its end. The locking ring 5 is threaded onto the outer end of the air intake pipe 2, with one side of the locking ring 5 fitting against one side of the positioning ring 7. Furthermore, the outer wall of the locking ring 5 is fixedly connected to the inner side of the opening of the filter element 4. Rotating the locking ring 5 allows for quick installation and removal of the filter element 4. Compared to traditional bolt fixing methods, this significantly reduces disassembly and installation time, facilitating filter element 4 replacement and deep cleaning. The increased filtration area of ​​the filter element 4 means it only needs cleaning or replacement after multiple uses, further reducing maintenance frequency.

[0020] A drive rod 6 is fixed to the outer wall of the locking ring 5, and the drive rod 6 is distributed at equal angles about the central axis of the locking ring 5. The setting of the drive rod 6 provides the operator with a force application point, making the operation of rotating the locking ring 5 more effortless and convenient.

[0021] The cleaning mechanism includes a movable ring 8. The movable ring 8 is rotatably mounted on the outer wall of the air intake pipe 2 via a bearing. A hollow gear 9 is fixed to one side of the movable ring 8, and the movable ring 8 and the hollow gear 9 are coaxially arranged. A drive mechanism is provided on one side of the hollow gear 9. A slot 12 is opened on one side of the movable ring 8, and one end of a locking rod 13 is engaged inside the slot 12. The locking rod 13 is fixed to the movable ring 8 by bolts 14. The other end of the locking rod 13 is fixed to a frame 15, and a brush 16 is fixed to the inner side of the frame 15. The slot 12 and the locking rod 13 are engaged and fixed by bolts 14, which facilitates the installation, disassembly and replacement of the frame 15 and the brush 16. When the brush 16 is worn or damaged, a new brush 16 can be quickly replaced to ensure cleaning efficiency.

[0022] The drive mechanism includes a solid gear 10, one side of the hollow gear 9 is meshed with the solid gear 10, and the middle part of the solid gear 10 is fixedly connected to the output end of the motor 11. The outer wall of the motor 11 is fixed to the outer wall of the air intake pipe 2 by a fixing bracket.

[0023] Both the frame 15 and the brush 16 are arc-shaped, and the frame 15, the brush 16 and the filter element 4 are coaxial. The inner side of the brush 16 is in contact with the outer side of the filter element 4. The arc-shaped and coaxial design allows the brush 16 to fit closely to the curved surface of the filter element 4, ensuring that the surface of the filter element 4 is cleaned in all directions without dead angles, effectively removing the dust attached to the filter element.

[0024] Working Principle: When using this underground mine ventilation device, the ventilator 1 is started, and outside air enters through the intake pipe 2. After being filtered by the filter element 4, dust and other impurities are trapped on the surface of the filter element 4. Due to the large filtration area of ​​the filter element 4, it can efficiently filter a large amount of dust-laden air. Clean air enters the ventilator 1 through the intake pipe 2 and is then transported to various working areas of the underground mine through the exhaust pipe 3. When there is a lot of dust adhering to the surface of the filter element 4, affecting the ventilation efficiency, the motor 11 is started. The motor 11 drives the solid gear 10 to rotate. The solid gear 10 meshes with the hollow gear 9, driving the movable ring 8 to rotate, which in turn causes the frame 15 and the brush 16 to rotate around the filter element 4. During the rotation, the brush 16 cleans the surface of the filter element 4, brushing off the adhering dust, realizing online cleaning of the filter element 4 without stopping the machine, ensuring the continuity of underground ventilation. When filter element 4 needs to be replaced, the operator holds the drive rod 6, rotates the locking ring 5, and unscrews the locking ring 5 off the air intake pipe 2 to remove filter element 4 for replacement.

[0025] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A ventilation device for underground mines, comprising a ventilation fan (1), characterized in that: An air outlet pipe (3) is provided on the top of the front side of the ventilator (1), and an air inlet pipe (2) is provided on the right side of the ventilator (1). A filter element (4) is provided at the end of the air inlet pipe (2), and the filter element (4) is designed as a semi-spherical structure. A fixing mechanism is provided between the filter element (4) and the air inlet pipe (2). A cleaning mechanism for the filter element (4) is provided on the outside of the air inlet pipe (2).

2. The underground mine ventilation device according to claim 1, characterized in that: The fixing mechanism includes a locking ring (5), a positioning ring (7) is nested and fixed on the outer wall of the air intake pipe (2) near the end of the air intake pipe (2), and a locking ring (5) is threaded on the outer end of the air intake pipe (2), and one side of the locking ring (5) is in contact with one side of the positioning ring (7), and the outer wall of the locking ring (5) is fixedly connected to the inner side of the opening of the filter element (4).

3. The underground mine ventilation device according to claim 2, characterized in that: The outer wall of the locking ring (5) is fixed with a drive rod (6), and the drive rod (6) is distributed at equal angles about the central axis of the locking ring (5).

4. The underground mine ventilation device according to claim 1, characterized in that: The cleaning mechanism includes a movable ring (8). The outer wall of the air intake pipe (2) is rotatably mounted with the movable ring (8) via a bearing. A hollow gear (9) is fixed on one side of the movable ring (8), and the movable ring (8) and the hollow gear (9) are coaxially arranged. A drive mechanism is provided on one side of the hollow gear (9). A slot (12) is opened on one side of the movable ring (8), and one end of a locking rod (13) is engaged inside the slot (12). The locking rod (13) and the movable ring (8) are fixedly connected by bolts (14). The other end of the locking rod (13) is fixed with a frame (15), and a brush (16) is fixed on the inner side of the frame (15).

5. A ventilation device for underground mines according to claim 4, characterized in that: The drive mechanism includes a solid gear (10), one side of the hollow gear (9) meshes with the solid gear (10), and the middle part of the solid gear (10) is fixedly connected to the output end of the motor (11), and the outer wall of the motor (11) is fixed to the outer wall of the air intake pipe (2) by a fixing bracket.

6. The underground mine ventilation device according to claim 4, characterized in that: The frame (15) and brush (16) are both arc-shaped, and the frame (15) and brush (16) are coaxial with the filter element (4), and the inner side of the brush (16) is in contact with the outer side of the filter element (4).

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