An integrated dustproof and ventilation device for underground coal mine

Abstract

The utility model relates to the technical field of coal mine ventilation, and disclose a coal mine underground ventilation dustproof integration device, including ventilator main part, one end fixed mounting of ventilator main part has end ring spare, the inside filling of end ring spare has filter plate, the outside fixed mounting of filter plate has half ring spare, the top contact of half ring spare has the clamping ring of end ring spare surface, in the pulling of pull -ring, drive shift plate and drive limit plate synchronous movement, when the bottom connecting block gradually separates limit cavity inside, it shows that pull -ring has been pulled to the right place. After the above operation is completed, with the sliding cooperation of the sliding block and the sliding groove, the clamping ring can be translated from the surface of the end ring to the surface of the arc plate. At this time, by applying a longitudinal force to the half ring inside the inner cavity through the side block two, the half ring can be moved. This structure design can make the disassembly process of the filter plate more convenient.

Description

Technical Field

[0001] This utility model belongs to the field of coal mine ventilation technology, and specifically relates to an integrated ventilation and dust control device for underground coal mines. Background Technology

[0002] In underground coal mine operations, the ventilation system is a core infrastructure for ensuring the safety of workers and maintaining underground air circulation. Its core function is to transport fresh air from the surface to underground mining faces, electromechanical chambers, and other ventilation areas through intake shafts, while simultaneously expelling polluted air containing toxic and harmful gases such as methane and carbon monoxide to the surface through return shafts. However, surface air often carries a large amount of dust in the natural environment, such as atmospheric dust and coal dust from the mine surface. Furthermore, secondary dust is easily generated in the intake path (such as intake shafts and bottom yards) due to shaft wall collapse and equipment operation. As a result, fresh air carries dust before entering the mine. Existing ventilation systems only focus on "airflow transport" and "harmful gas dilution," lacking pre-dust prevention treatment for the intake airflow. After a large amount of dust enters the mine with the ventilation airflow, it not only aggravates the dust concentration in mining faces and transport roadways, causing workers to be exposed to a high-dust environment for a long time, but may also cause equipment failure due to dust accumulation, threatening safe production underground.

[0003] To address the issue of dust carried in intake air, some mines have attempted to install dust filtration devices (such as grid filter plates and bag filters) in intake airways or underground yards to intercept dust particles in the airflow. However, existing dust filtration devices have revealed significant shortcomings under the special working conditions of underground coal mines. The high concentration of dust in the underground intake air necessitates frequent disassembly and replacement of the filter plates. However, existing filter plates mostly use traditional installation methods such as bolt fixing and welding connections. Disassembly requires operators to carry wrenches, screwdrivers, and other tools into the intake airway or equipment room to remove the fasteners one by one. During this process, the ventilation fan volume must be reduced or even temporarily stopped. This not only affects normal underground ventilation but also increases the safety risks of collisions and dust inhalation for operators due to the confined space and dim lighting of the intake airway. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an integrated ventilation and dust control device for underground coal mines.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an integrated ventilation and dust control device for underground coal mines, comprising a ventilation fan body, an end ring fixedly installed at one end of the ventilation fan body, a filter plate filled inside the end ring, a semi-ring fixedly installed on the outside of the filter plate, a snap ring on the surface of the end ring contacting the top of the semi-ring, symmetrical side blocks I fixedly installed on the outside of the end ring, and side blocks II fixedly installed at the top of the side blocks I at both ends of the semi-ring;

[0006] The top of the main body of the ventilator is fixedly installed with an arc plate that is fixedly connected to the end ring. Symmetrical end blocks are fixedly installed on both sides of the snap ring. A sliding plate is provided on one side of the end block, and a symmetrical limiting plate is fixedly installed on one side of the sliding plate.

[0007] Preferably, the semi-ring is located inside the end ring, and the end ring has an internal cavity for fitting the filter plate and the semi-ring to be inserted and accommodated.

[0008] Preferably, an insert is fixedly installed on the top of the first side block, extending through to the inside of the second side block, and the second side block has a socket for insertion into the insert.

[0009] Preferably, the bottom of the snap ring is fixedly equipped with mutually symmetrical sliders, and the top of the arc plate, the semi-ring and the snap ring are all provided with corresponding sliding grooves, and the sliding grooves and the sliders are slidably connected to each other.

[0010] Preferably, a limiting cavity is formed between the two limiting plates, and a bottom connecting block located inside the limiting cavity is fixedly installed at the bottom of the first side block.

[0011] Preferably, a connecting rod penetrating the inner side of the end block is fixedly installed on one side of the moving plate, and an elastic element fixedly connected to the inner side of the end block is fixedly installed at one end of the connecting rod.

[0012] Preferably, the surface of the connecting rod is fixedly equipped with mutually symmetrical protrusions, and the inner side of the end block is provided with a groove, which is used to engage with the protrusions.

[0013] Preferably, pull rings are fixedly installed on one side of both of the two moving plates, and the two pull rings are symmetrical to each other.

[0014] In summary, this utility model has the following beneficial effects:

[0015] 1. During the pulling of the pull ring, the drive plate moves the limiting plate synchronously; when the bottom connecting block gradually disengages from the inner side of the limiting cavity, it indicates that the pull ring has been pulled into place. After completing the above operation, with the sliding cooperation of the slider and the slide groove, the snap ring can be moved from the surface of the end ring to the surface of the arc plate. At this time, the side block two applies a longitudinal force to the half ring inside the inner cavity to move it, thereby realizing the action of removing the filter plate from the inside of the end ring. This structural design makes the disassembly process of the filter plate easier and more convenient.

[0016] 2. When reinstalling the filter plate, the precise positioning of side block one and side block two should be achieved first by using the cooperation of the insert and the insertion hole. At the same time, the insertion and positioning between the half ring and the end ring should be completed with the help of this cooperation. The filter plate can be replaced and disassembled by pulling the ring to lock the movement. Its operation is convenient and provides efficient support for downhole operations.

[0017] 3. After the snap-fit ​​ring is properly fitted and fixed to the end ring, the slider and the groove form a circumferential constraint through sliding contact. This effectively limits the relative rotation of the two in the circumferential direction, preventing angular deviation caused by factors such as downhole vibration and equipment shaking, ensuring that the filter plate always maintains the preset installation orientation. Furthermore, the bottom connecting block and the limiting plate form an axial positioning through rigid contact, precisely controlling the relative axial position of the snap-fit ​​ring and the end ring, preventing axial movement or loosening, and ensuring the fit and installation of the filter plate. This dual limiting design provides a robust installation guarantee, significantly improving the structural stability of the filter plate after installation and reducing the risk of failure due to limiting failure, providing reliable support for the long-term stable operation of the filter plate. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram showing the cooperation between the main body of the ventilator and the arc plate of this utility model;

[0020] Figure 3 This is a schematic diagram showing the use of the end ring and the arc plate in this utility model.

[0021] Figure 4 This is a cross-sectional schematic diagram of the end ring component of this utility model;

[0022] Figure 5 This is a schematic diagram of the filter plate and semi-ring component of this utility model;

[0023] Figure 6 This is a schematic diagram of the snap-fit ​​ring of this utility model;

[0024] Figure 7 This is an enlarged cross-sectional view of the end block of this utility model;

[0025] Figure 8 This is an exploded cross-sectional view of the end block and the sliding plate of this utility model.

[0026] Figure label:

[0027] 1. Main body of the ventilation fan; 101. End ring; 102. Inner cavity;

[0028] 2. Filter plate; 201. Semi-ring component;

[0029] 3. Snap-fit ​​ring;

[0030] 4. Side block one; 401. Insert;

[0031] 5. Side block two; 501. Insertion hole;

[0032] 6. Arc plate; 601. Slider; 602. Slide groove;

[0033] 7. End block;

[0034] 8. Moving plate; 801. Limiting plate; 802. Limiting cavity; 803. Bottom connecting block;

[0035] 9. Connecting rod; 901. Raised bar; 902. Groove;

[0036] 10. Elastic components;

[0037] 11. Pull ring. Detailed Implementation

[0038] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0039] The specific embodiments of this utility model are described below with reference to the accompanying drawings:

[0040] Example:

[0041] refer to Figures 1-8 An integrated ventilation and dust control device for underground coal mines includes a ventilation fan body (1). One end of the ventilation fan body 1 is fixedly installed with an end ring 101. The end ring 101 is filled with a filter plate 2. A semi-ring 201 is fixedly installed on the outside of the filter plate 2. The top of the semi-ring 201 contacts a snap ring 3 located on the surface of the end ring 101. A pair of symmetrical side blocks 4 are fixedly installed on the outside of the end ring 101. A pair of side blocks 5 located on the top of the side blocks 4 are fixedly installed at both ends of the semi-ring 201.

[0042] The top of the main body 1 of the ventilator is fixedly installed with an arc plate 6 that is fixedly connected to the end ring 101. The two sides of the snap ring 3 are fixedly installed with symmetrical end blocks 7. One side of the end block 7 is provided with a sliding plate 8. One side of the sliding plate 8 is fixedly installed with symmetrical limiting plates 801.

[0043] Specifically, during the pulling of the pull ring 11, the driving plate 8 moves the limiting plate 801 synchronously; when the bottom connecting block 803 gradually disengages from the inner side of the limiting cavity 802, it indicates that the pull ring 11 has been pulled into place. After completing the above operation, with the sliding cooperation of the slider 601 and the slide groove 602, the snap ring 3 can be moved from the surface of the end ring 101 to the surface of the arc plate 6. At this time, the side block 25 applies a longitudinal force to the semi-ring 201 inside the inner cavity 102 to make it move, thereby realizing the action of removing the filter plate 2 from the inner side of the end ring 101. This structural design makes the disassembly process of the filter plate 2 easier and more convenient.

[0044] The semi-ring 201 is located inside the end ring 101, and the end ring 101 has an inner cavity 102 that accommodates the filter plate 2 and the semi-ring 201.

[0045] Specifically, the inner cavity 102 is inserted into and snapped into the inner side of the end ring 101 in conjunction with the filter plate 2, wherein the semi-ring 201 is also located inside the inner cavity 102 and its outer diameter does not protrude from the surface of the end ring 101.

[0046] An insert 401 is fixedly installed on the top of side block 4, extending through to the inside of side block 5. The inside of side block 5 is provided with a socket 501 for use in inserting the insert 401.

[0047] Specifically, while the semi-ring 201 is located inside the end ring 101, the second side block 5 covers the top of the first side block 4, and the insert 401 is inserted into the insertion hole 501, thereby achieving the positioning between the first side block 4 and the second side block 5, and at the same time achieving the insertion positioning between the semi-ring 201 and the end ring 101.

[0048] The bottom of the snap ring 3 is fixedly equipped with symmetrical sliders 601. The top of the arc plate 6, the semi-ring 201 and the snap ring 3 are all provided with corresponding sliding grooves 602, and the sliding grooves 602 and the sliders 601 are slidably connected to each other.

[0049] Specifically, the sliding connection between the slider 601 and the groove 602 will cooperate with the snap ring 3 to guide the smooth movement of the arc plate 6, the semi-ring 201 and the snap ring 3.

[0050] A limiting cavity 802 is formed between the two limiting plates 801. A bottom connecting block 803 located inside the limiting cavity 802 is fixedly installed on the bottom of the side block 4. A connecting rod 9 penetrating the inside of the end block 7 is fixedly installed on one side of the moving plate 8. An elastic element 10 fixedly connected to the inside of the end block 7 is fixedly installed at one end of the connecting rod 9. Symmetrical protrusions 901 are fixedly installed on the surface of the connecting rod 9. A groove 902 is opened on the inside of the end block 7. The groove 902 is used to engage with the protrusions 901. Pull rings 11 are fixedly installed on one side of each of the two moving plates 8. The two pull rings 11 are symmetrical to each other.

[0051] Specifically, during the pulling of the pull ring 11, the moving plate 8 drives the limiting plate 801 to move. During the movement, once the bottom connecting block 803 gradually disengages from the inner side of the limiting cavity 802, it can be considered as pulled into place. Simultaneously, the movement of the moving plate 8 drives the connecting rod 9 to move. The connecting rod 9 will slide and engage with the end block 7 through the protrusion 901 and the groove 902 to guide the movement and prevent angle changes during movement. At the same time, the movement of the connecting rod 9 will cause the elastic element 10 to extend so that when the force applied to the pull ring 11 is released, the elastic element 10 can drive the above structure back to the initial position.

[0052] The working principle of this utility model is as follows: In the use of the integrated ventilation and dust prevention device, the operation of the main body 1 of the ventilation fan is coordinated with the working environment in the coal mine for ventilation. The filter plate 2 intercepts dust and impurities in the air entering from the air inlet of the main body 1. With long-term use, the operator can operate the filter plate 2 via the pull ring 11.

[0053] Pulling the pull ring 11 drives the shift plate 8 to move the limiting plate 801 synchronously. During this movement, when the bottom connecting block 803 gradually disengages from the inner side of the limiting cavity 802, it indicates that the pull ring 11 has been pulled into place. At the same time, the movement of the shift plate 8 synchronously drives the connecting rod 9 to move. The connecting rod 9, through the sliding engagement structure of the protrusion 901 and the groove 902, achieves movement guidance between itself and the end block 7, effectively preventing the end block 7 from shifting at an angle during movement. The movement of the connecting rod 9 further causes the elastic element 10 to extend. After completing the above operations, with the sliding engagement of the slider 601 and the groove 602, the locking ring 3 can be moved from the surface of the end ring 101 to the surface of the arc plate 6. At this time, the side block 25 applies a longitudinal force to the semi-ring 201 inside the inner cavity 102 to move it, thus realizing the action of removing the filter plate 2 from the inner side of the end ring 101. This structural design makes the disassembly process of the filter plate 2 easier and more convenient. In this embodiment, the elastic element 10 is a spring, but is not limited to shape memory alloy, torsion spring, silicone rubber, etc.

[0054] When reinstalling the filter plate 2, the side block 4 and side block 5 should be accurately positioned by first using the cooperation between the insert 401 and the insertion hole 501. At the same time, the insertion and positioning between the half ring 201 and the end ring 101 should be completed by using this cooperation. Then, the installation can be completed by reversing the above disassembly steps.

[0055] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0056] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A coal mine underground ventilation and dust prevention integrated device, comprising a ventilation fan main body (1), one end of the ventilation fan main body (1) is fixedly provided with an end ring (101), characterized in that: The end ring (101) is filled with a filter plate (2), and a semi-ring (201) is fixedly installed on the outside of the filter plate (2). The top of the semi-ring (201) contacts a snap ring (3) located on the surface of the end ring (101). A pair of symmetrical side blocks (4) are fixedly installed on the outside of the end ring (101). A pair of side blocks (5) located on the top of the side blocks (4) are fixedly installed at both ends of the semi-ring (201). The top of the main body (1) of the ventilator is fixedly installed with an arc plate (6) that is fixedly connected to the end ring (101). The two sides of the snap ring (3) are fixedly installed with symmetrical end blocks (7). One side of the end block (7) is provided with a moving plate (8). One side of the moving plate (8) is fixedly installed with symmetrical limiting plates (801).

2. The coal mine underground ventilation and dust prevention integrated device according to claim 1, characterized in that: The semi-ring (201) is located inside the end ring (101), and the end ring (101) has an inner cavity (102) that accommodates the filter plate (2) and the semi-ring (201).

3. The coal mine underground ventilation and dust prevention integrated device according to claim 1, characterized in that: The top of the first side block (4) is fixedly installed with an insert (401) that extends through to the inside of the second side block (5). The inside of the second side block (5) is provided with a socket (501) for use with the insert (401).

4. The coal mine underground ventilation and dust prevention integrated device according to claim 1, characterized in that: The bottom of the snap ring (3) is fixedly equipped with mutually symmetrical sliders (601). The top of the arc plate (6), the semi-ring (201) and the snap ring (3) are all provided with corresponding sliding grooves (602). The sliding grooves (602) and the sliders (601) are slidably connected to each other.

5. The coal mine underground ventilation and dust prevention integrated device according to claim 1, characterized in that: A limiting cavity (802) is formed between the two limiting plates (801), and a bottom connecting block (803) located inside the limiting cavity (802) is fixedly installed on the bottom of the side block (4).

6. The coal mine underground ventilation and dust prevention integrated device according to claim 1, characterized in that: A connecting rod (9) that penetrates the inner side of the end block (7) is fixedly installed on one side of the moving plate (8), and an elastic element (10) that is fixedly connected to the inner side of the end block (7) is fixedly installed on one end of the connecting rod (9).

7. The coal mine underground ventilation and dust prevention integrated device according to claim 6, characterized in that: The surface of the connecting rod (9) is fixedly equipped with mutually symmetrical protrusions (901), and the inner side of the end block (7) is provided with a groove (902), which is used to engage with the protrusions (901).

8. The coal mine underground ventilation and dust prevention integrated device according to claim 1, characterized in that: Pull rings (11) are fixedly installed on one side of each of the two moving plates (8), and the two pull rings (11) are symmetrical to each other.

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