Ventilation device for coal mine electromechanics

Abstract

The utility model discloses a ventilation device for a coal mine machine, which relates to the technical field of ventilation, and comprises a T-shaped pipe, which comprises a vertical pipe part for upwards discharging air and a transverse pipe part for feeding air into the vertical pipe part; an air inlet of the air gathering pipe is fixed in the transverse pipe part of the T-shaped pipe, an air outlet in the top end of the air gathering pipe coincides with the central axis of the vertical pipe part of the T-shaped pipe, and the diameter of the section of the air inlet of the air gathering pipe is larger than that of the air outlet; according to the scheme, the sliding cover blocks the air outlet of the air gathering pipe in the non-exhaust state, in the exhaust state, wind power pushes the sliding cover to ascend, the ascending height of the sliding cover is in positive correlation with the wind power, and the sliding cover collides with the air gathering pipe to generate vibration after falling, so that dust on the filter screen falls to the bottom of the vertical pipe part of the T-shaped pipe, and the dust on the filter screen can be automatically treated; treatment is carried out without an external structure, so that the filtering effect is kept in a relatively good state.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of ventilation, specifically to a ventilation device for coal mine electromechanical. BACKGROUND

[0002] In the process of coal mining, the operation of electromechanical equipment will produce a large amount of heat and waste gas, and good ventilation is crucial to protect the normal operation of equipment and the life safety of workers. In the actual use of the existing coal mine electromechanical ventilation device, dust and other impurities carried in the air are easy to block the ventilation pipeline or damage the electromechanical equipment, and the dust is inconvenient to clean, which needs manual frequent disassembly of the equipment for cleaning, consumes a lot of manpower and material resources, and also affects the normal production operation of the coal mine.

[0003] Therefore, the person skilled in the art provides a ventilation device for coal mine electromechanical to solve the problem. UTILITY MODEL CONTENT

[0004] In order to solve the above problems, the utility model provides a ventilation device for coal mine electromechanical.

[0005] In order to achieve the above purpose, the technical scheme of the utility model is as follows:

[0006] A ventilation device for coal mine electromechanical, comprising:

[0007] A T-shaped pipe, comprising a vertical pipe part for upward air outlet, and a horizontal pipe part for air inlet of the vertical pipe part;

[0008] A wind collecting pipe, the air inlet of which is fixed in the horizontal pipe part of the T-shaped pipe, the top air outlet of which coincides with the central axis of the vertical pipe part of the T-shaped pipe, and the air inlet of the wind collecting pipe is larger in cross-sectional diameter than the air outlet;

[0009] A sliding cover, which is located in the vertical pipe part of the T-shaped pipe and in sliding contact with the inner wall, and the sliding cover blocks the air outlet of the wind collecting pipe in the non-exhaust air state;

[0010] A filter screen, which is arranged on the side surface of the sliding cover;

[0011] A guide pipe, which is fixed on the sliding cover, and the air outlet of the wind collecting pipe is inserted into the guide pipe;

[0012] A side opening, which is arranged on the top of the guide pipe;

[0013] In the exhaust air state, the wind collecting pipe narrows the air passage in the horizontal pipe part of the T-shaped pipe, the sliding cover is pushed upward by the wind force, and after falling, it collides with the wind collecting pipe to generate vibration, and the dust on the filter screen falls to the bottom of the vertical pipe part of the T-shaped pipe.

[0014] Preferably, the side openings are uniformly arranged in multiple, and the filter screens are also arranged in multiple, the filter screens are arranged in an inclined manner, and the opening directions of the multiple side openings are respectively towards the multiple filter screens.

[0015] Preferably, the sliding cover is in a whole conical shape, and the vertical section of the bottom edge of the sliding cover is an acute angle.

[0016] Preferably, the vertical pipe part of the T-shaped pipe is arranged below the wind collecting pipe with a dust guide cover, and the opening part of the dust guide cover is in a decreasing diameter from top to bottom.

[0017] Preferably, the bottom of the vertical pipe part of the T-shaped pipe is arranged with a receiving dish through screwing, and the side surface of the receiving dish is arranged with anti-skid lines.

[0018] In summary, the utility model has the following beneficial technical effects:

[0019] The sliding cover blocks the air outlet of the wind collecting pipe in the non-ventilation state, and in the ventilation state, the wind pushes the sliding cover to move upwards, the moving-up height of the sliding cover is positively correlated with the wind force, and after falling, the sliding cover collides with the wind collecting pipe to generate vibration, so that the dust on the filter screen falls to the bottom of the vertical pipe part of the T-shaped pipe, the dust on the filter screen can be automatically treated, the treatment does not need to rely on external structures, and the filtering effect can be kept in a good state. BRIEF DESCRIPTION OF DRAWINGS

[0020] The disclosed content of the utility model will be explained with reference to the drawings. It should be understood that the drawings are only for illustrative purposes, and are not intended to limit the protection scope of the utility model. In the drawings, the same reference signs are used to refer to the same parts. Among them:

[0021] Figure 1 is a whole structure schematic view of the utility model;

[0022] Figure 2 is a front view cross-sectional structure schematic view of the utility model;

[0023] Figure 3 is an enlarged schematic view of the A area in Figure 2

[0024] Figure 4 is a sliding cover top view cross-sectional structure schematic view of the utility model.

[0025] Mark explanation: 1, T-shaped pipe; 2, wind collecting pipe; 3, sliding cover; 4, filter screen; 5, guide pipe; 6, side opening; 7, dust guide cover; 8, receiving dish. DETAILED DESCRIPTION

[0026] ​It is easy to understand that according to the technical scheme of the utility model, a plurality of structure modes and implementation modes which can be replaced with each other can be proposed by the general skilled in the art without changing the essential spirit of the utility model. Therefore, the following specific embodiments and drawings are only exemplary description of the technical scheme of the utility model, and should not be regarded as the whole of the utility model or regarded as the limitation or restriction of the technical scheme of the utility model.

[0027] A ventilation device for coal mine electromechanical, refer to Figures 1-4 , mainly including T type pipe 1, wind gathering pipe 2, sliding cover 3, filter screen 4, guide pipe 5 and side opening 6 etc.

[0028] T type pipe 1, as the main frame of ventilation device, it includes the vertical pipe part of upward air outlet, and the horizontal pipe part of air inlet to vertical pipe part, provides passage for air flow, can pass through fan power.

[0029] Wind gathering pipe 2, its air inlet is fixed in the horizontal pipe part of T type pipe 1, the top end air outlet coincides with the central axis of T type pipe 1 vertical pipe part, the outside of air outlet is same and smooth, and the air inlet of wind gathering pipe 2 is larger than the section diameter of air outlet, wind gathering pipe 2 makes the air passage in the horizontal pipe part of T type pipe 1 narrow, when air flows through here, according to the principle of fluid mechanics, the flow rate is accelerated, and the wind power is increased, which provides power for subsequent upward movement of sliding cover 3.

[0030] Sliding cover 3, it is located in the vertical pipe part of T type pipe 1 and in sliding contact with the inner wall, and sliding cover 3 blocks the air outlet of wind gathering pipe 2 in the state of no air exhaust, in the state of air exhaust, the wind power drives sliding cover 3 to move upward, the upward height is positively correlated with the wind power, and after falling, it collides with wind gathering pipe 2 to generate vibration, so that the dust on filter screen 4 falls to the bottom of the vertical pipe part of T type pipe 1, which can automatically process the dust on filter screen 4 without the help of external structure, so that the filtering effect is better. Sliding cover 3 is conical as a whole, and the vertical section of the bottom edge of sliding cover 3 is an acute angle, which is beneficial to the upward movement of sliding cover 3 driven by air, reduces the air flow resistance, and can also scrape the dust on the inner wall of the vertical pipe part of T type pipe 1 downward.

[0031] Filter screen 4, it is arranged on the side of sliding cover 3, and is used for filtering the dust and other impurities in air.

[0032] Guide pipe 5, it is fixed on sliding cover 3, and the air outlet of wind gathering pipe 2 is inserted into guide pipe 5, which guides the upward and downward sliding of sliding cover 3, and ensures that sliding cover 3 will not deviate during sliding.

[0033] Side opening 6, which is opened at the top of the guide pipe 5, the opening direction of side opening 6 is opposite to the filter screen 4, which ensures that the air can pass through the filter screen 4 uniformly for efficient filtration. The side opening 6 can be uniformly provided with multiple, and the filter screen 4 can also be provided with multiple, the filter screen 4 is arranged obliquely, and the opening directions of the multiple side openings 6 are respectively towards the multiple filter screens 4, such a structure design can make the air more uniformly pass through the filter screen 4 for filtration, and improve the filtration effect.

[0034] The dust guide cover 7 is arranged at the vertical pipe portion of the T-shaped pipe 1 and below the air collecting pipe 2, and the opening portion of the dust guide cover 7 is gradually reduced in diameter from top to bottom. The falling dust can be concentrated and guided to the bottom of the vertical pipe portion of the T-shaped pipe 1, so that the dust is conveniently collected, and the opening at the bottom of the dust guide cover 7 is small, the air flow below the dust guide cover 7 is small, and the collected dust is not easy to be stirred up again.

[0035] The receiving dish 8 is threadedly installed at the bottom of the vertical pipe portion of the T-shaped pipe 1, and the side surface of the receiving dish 8 is provided with anti-skid lines, so that the receiving dish 8 is conveniently disassembled and installed by the worker, and is used for collecting the dust falling from the filter screen 4.

[0036] In actual use of the ventilation device for coal mine electromechanical use, the air enters from the horizontal pipe portion of the T-shaped pipe 1, and when passing through the air collecting pipe 2, the air passage is narrowed and the flow rate is accelerated due to the larger cross-sectional diameter of the air inlet of the air collecting pipe 2 than that of the air outlet, and the wind force is increased. When the wind force reaches a certain degree, the sliding cover 3 is pushed to move upwards along the inner wall of the vertical pipe portion of the T-shaped pipe 1, the air enters the guide pipe 5 from the air outlet of the air collecting pipe 2 and flows to the filter screen 4 through the side opening 6, and the dust and other impurities in the air are filtered under the action of the filter screen 4. With the change of the wind force, the upward height of the sliding cover 3 also changes correspondingly, so that the automatic adjustment of the ventilation volume is realized. When the ventilation is finished or the wind force is weakened, the sliding cover 3 falls under the action of its own gravity and collides with the air collecting pipe 2 to generate vibration, so that the dust adhering to the filter screen 4 falls off, and the dust falls into the receiving dish 8 at the bottom of the vertical pipe portion of the T-shaped pipe 1 under the guidance of the dust guide cover 7. The worker can rotate the receiving dish 8, disassemble the receiving dish 8 by using the anti-skid lines on the side surface of the receiving dish 8, clean the dust in the receiving dish 8, and then install the receiving dish 8 back to the original position after the cleaning is completed, so that the ventilation device can be continuously used.

[0037] The technical range of the utility model is not limited to the content in the above description, and the person skilled in the art can make various deformations and modifications to the above embodiment without departing from the technical thought of the utility model, and these deformations and modifications should all belong to the protection range of the utility model.

Claims

1. A ventilation device for coal mine electromechanical applications, characterized in that, include: T-shaped pipe (1), which includes an upward air outlet vertical pipe section and an air inlet horizontal pipe section; The air inlet of the air-collecting pipe (2) is fixed inside the horizontal section of the T-shaped pipe (1), and the air outlet at the top coincides with the central axis of the vertical section of the T-shaped pipe (1). The air inlet of the air-collecting pipe (2) has a larger cross-sectional diameter than the air outlet. The sliding cover (3) is located inside the vertical section of the T-shaped tube (1) and slides in contact with the inner wall. The sliding cover (3) blocks the air outlet of the air-gathering tube (2) when the air is not being exhausted. A filter screen (4) is disposed on the side of the sliding cover (3); The guide tube (5) is fixed on the sliding cover (3), and the air outlet of the air gathering tube (2) is inserted into the guide tube (5); A side opening (6) is provided at the top of the guide tube (5); In the exhaust state, the air-gathering pipe (2) narrows the air passage in the horizontal section of the T-shaped pipe (1), the wind pushes the sliding cover (3) upward, and after falling, it collides with the air-gathering pipe (2) to generate vibration, and the dust on the filter screen (4) falls to the bottom of the vertical section of the T-shaped pipe (1).

2. A ventilation device for coal mine electromechanical applications according to claim 1, characterized in that: The side openings (6) are evenly arranged in multiple ways, and the filter screens (4) are also arranged in multiple ways. The filter screens (4) are arranged at an angle, and the opening directions of the multiple side openings (6) are respectively facing the multiple filter screens (4).

3. A ventilation device for coal mine electromechanical applications according to claim 2, characterized in that: The sliding cover (3) is conical in shape, and the vertical cross-section of the bottom edge of the sliding cover (3) is acute.

4. A ventilation device for coal mine electromechanical applications according to claim 3, characterized in that: The vertical section of the T-shaped tube (1) is provided with a dust guide hood (7) located below the air collecting tube (2), and the diameter of the opening of the dust guide hood (7) decreases from top to bottom.

5. A ventilation device for coal mine electromechanical applications according to claim 4, characterized in that: The bottom of the vertical section of the T-shaped tube (1) is fitted with a receiving dish (8) by threads, and the side of the receiving dish (8) is provided with anti-slip texture.

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