Mine ventilation device

Abstract

The utility model discloses a mine ventilation device which comprises a main exhaust pipe, an auxiliary exhaust pipe vertically communicated with the top end of the main exhaust pipe, a fan installed at the outer end of the auxiliary exhaust pipe, a filter mesh coaxially installed at a pipe opening of the auxiliary exhaust pipe, a transmission shaft coaxially connected with the filter mesh in a rotating mode, and a transmission shaft connected with the transmission shaft in a rotating mode. The outer end of the transmission shaft is in transmission connection with a driving motor, the driving motor is installed on the outer wall of the cross section of the auxiliary exhaust pipe, brush strips are installed on the circumferential face of the transmission shaft, and bristles of the brush strips are attached to the side wall of the filtering net piece in a sliding mode. The utility model has the beneficial effects that dust adhered to the filter mesh can be cleaned through the rotating brush strip, and normal air exhaust and filtration of the filter mesh are ensured, so that smooth air exhaust under a mine is ensured, and mine safety accidents are avoided.

Description

Technical field:

[0001] The utility model belongs to the field of mining machinery, in particular to a mining ventilation device. Background technology:

[0002] In the process of mining resources exploitation, ventilation in the mine is a very important safety measure. The internal airflow needs to be exchanged with the outside world to ensure the safety of the construction workers in the mine. A lot of dust will be generated in the underground mining process. When the underground air is discharged, the polluted air needs to be filtered to prevent the air in the mine from polluting the outside environment. When filtering the air, a filter is usually installed at the mouth of the ventilation duct. However, in actual use, after the filter has been filtered for a long time, a large amount of dust will adhere to the mesh, causing the filter holes to be blocked, which not only affects the normal filtration of the air, but also causes the exhaust in the mine to be blocked, which is prone to mine safety accidents. Utility model content:

[0003] The utility model aims to provide a mine ventilation device, and overcomes the shortcomings of the above-mentioned prior art, and effectively solves the existing problem of clogging of the filter screen in the ventilation pipe.

[0004] The content of the utility model: A mine ventilation device, including a main exhaust duct, a secondary exhaust duct is vertically connected to the top of the main exhaust duct, a fan is installed at the outer end of the secondary exhaust duct, a filter mesh is coaxially installed at the pipe mouth of the secondary exhaust duct, a transmission shaft is coaxially rotatably connected to the filter mesh, the outer end of the transmission shaft is transmission-connected to a drive motor, the drive motor is installed on the outer wall of the cross-section of the secondary exhaust duct, a brush strip is installed on the circumferential surface of the transmission shaft, and the bristles of the brush strip are slidably fitted with the side wall of the filter mesh.

[0005] Furthermore, a debris discharge port is provided on the bottom wall of the auxiliary exhaust duct, and a sealing cover is matched with the debris discharge port, and the sealing cover is fixedly connected to the bottom wall of the auxiliary exhaust duct.

[0006] Furthermore, the sealing cover is concave in shape.

[0007] Furthermore, the sealing cover is fixedly connected to the bottom wall of the auxiliary exhaust duct by a first bolt.

[0008] Furthermore, four brush strips are evenly installed on the circumferential surface of the transmission shaft.

[0009] Furthermore, the length of the brush strip is the same as the cross-sectional radius of the filter mesh.

[0010] Furthermore, a plurality of connecting plates are evenly installed on the circumference of the filter mesh, and the connecting plates are fixedly connected to the inner wall of the auxiliary exhaust duct by a second bolt.

[0011] The beneficial effects of the utility model are as follows: the dust adhered to the filter mesh can be cleaned by the rotating brush bar, thereby ensuring the normal exhaust filtration of the filter mesh, thereby ensuring smooth exhaust in the mine and avoiding safety accidents in the mine. Description of the drawings:

[0012] Figure 1 It is a partial cross-sectional view of the main view of the utility model;

[0013] Figure 2 It is a partial cross-sectional view of the right side view of the utility model;

[0014] In the figure, 1 is a main exhaust duct, 2 is a main exhaust duct, 3 is a fan, 4 is a filter mesh, 5 is a transmission shaft, 6 is a drive motor, 7 is a brush bar, 8 is a miscellaneous port, 9 is a sealing cover, and 10 is a connecting piece. Specific implementation method:

[0015] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation of the present invention is now described with reference to the accompanying drawings:

[0016] like Figure 1 to Figure 2 As shown, a mine ventilation device comprises a main exhaust duct 1, the top of the main exhaust duct 1 is vertically connected with an auxiliary exhaust duct 2, a fan 3 is installed at the outer end of the auxiliary exhaust duct 2, a filter mesh 4 is coaxially installed at the pipe mouth of the auxiliary exhaust duct 2, a transmission shaft 5 is coaxially rotatably connected to the filter mesh 4, the outer end of the transmission shaft 5 is transmission-connected to a drive motor 6, the drive motor 6 is installed on the outer wall of the cross-section of the auxiliary exhaust duct 2, a brush strip 7 is installed on the circumferential surface of the transmission shaft 5, the bristles of the brush strip 7 are slidably fitted with the side wall of the filter mesh 4, and the auxiliary exhaust duct is provided with a fan 3, and a filter mesh 4 is coaxially installed at the pipe mouth of the auxiliary exhaust duct 2. 2 is provided with a debris discharge port 8, and a sealing cover 9 is matched on the debris discharge port 8, and the sealing cover 9 is fixedly connected to the bottom wall of the auxiliary exhaust duct 2, and the sealing cover 9 is concave, and the sealing cover 9 is fixedly connected to the bottom wall of the auxiliary exhaust duct 2 by a first bolt, and four brush strips 7 are evenly installed on the circumferential surface of the transmission shaft 5, and the length of the brush strips 7 is the same as the cross-sectional radius of the filter mesh 4, and a plurality of connecting pieces 10 are evenly installed on the circumference of the filter mesh 4, and the connecting piece 10 is fixedly connected to the inner wall of the auxiliary exhaust duct 2 by a second bolt.

[0017] Specifically, the dust adhering to the filter mesh 4 can be cleaned by the rotating brush bar 7, thereby ensuring the normal exhaust filtration of the filter mesh 4.

[0018] During actual use, under the suction action of the fan 3, the air under the mine is extracted through the main exhaust pipe 1. At this time, the filter mesh 4 located in the auxiliary exhaust pipe 2 filters the dust carried in the air. When a lot of dust adheres to the surface of the filter mesh 4, the operation of the fan 3 can be temporarily stopped, and the drive motor 6 can be started. At this time, the transmission shaft 5 drives the four brush strips 7 to clean the filter mesh 4. The cleaned dust particles fall into the concave sealing cover 9 through the discharge port 8 for temporary storage. The concave sealing cover 9 can be quickly disassembled by removing the first bolt, and the dust particles can be poured out.

[0019] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mine ventilation device, comprising a main exhaust duct (1), characterized in that: The top end of the main exhaust duct (1) is vertically connected to an auxiliary exhaust duct (2), a fan (3) is installed at the outer end of the auxiliary exhaust duct (2), a filter mesh (4) is coaxially installed at the pipe mouth of the auxiliary exhaust duct (2), a transmission shaft (5) is coaxially rotatably connected to the filter mesh (4), the outer end of the transmission shaft (5) is transmission-connected to a drive motor (6), the drive motor (6) is installed on the outer wall of the cross section of the auxiliary exhaust duct (2), a brush strip (7) is installed on the circumferential surface of the transmission shaft (5), and the bristles of the brush strip (7) are slidably fitted with the side wall of the filter mesh (4).

2. A mine ventilation device according to claim 1, characterized in that: A debris discharge port (8) is provided on the bottom wall of the auxiliary exhaust duct (2), and a sealing cover (9) is matched with the debris discharge port (8), and the sealing cover (9) is fixedly connected to the bottom wall of the auxiliary exhaust duct (2).

3. A mine ventilation device according to claim 2, characterized in that: The sealing cover (9) is concave in shape.

4. A mine ventilation device according to claim 2, characterized in that: The sealing cover (9) is fixedly connected to the bottom wall of the auxiliary exhaust pipe (2) via a first bolt.

5. A mine ventilation device according to claim 1, characterized in that: Four brush strips (7) are evenly mounted on the circumferential surface of the transmission shaft (5).

6. A mine ventilation device according to claim 5, characterized in that: The length of the brush strip (7) is the same as the cross-sectional radius of the filter mesh (4).

7. A mine ventilation device according to claim 1, characterized in that: A plurality of connecting plates (10) are evenly mounted on the circumference of the filter mesh (4), and the connecting plates (10) are fixedly connected to the inner wall of the auxiliary exhaust pipe (2) via a second bolt.

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