Underground coal mine auxiliary ventilation structure

Abstract

The utility model relates to an underground coal mine auxiliary ventilation structure which comprises a fan and an air inlet pipe communicated with an air inlet of the fan. The fan is provided with a filtering assembly which is used for wetting and filtering entering air and precipitating and cleaning impurities; a collecting assembly for collecting precipitated impurities is arranged on the filtering assembly; an impurity lifting assembly for discharging precipitated impurities into the collecting assembly is also arranged on the filtering assembly. Air in a mine is sucked in through the air inlet pipe and exhausted into the filtering assembly through the exhaust pipe, impurities in the air are filtered and precipitated on the impurity lifting assembly through water, the impurities are lifted into the collecting assembly to be collected and stored in cooperation with the impurity lifting assembly, and therefore the impurities in the mine can be effectively collected and stored under the condition that airflow circulation is not affected. Impurities are treated, and ventilation and freshness are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mine technical field, concretely is a kind of coal mine auxiliary ventilation structure underground. BACKGROUND

[0002] Coal mine underground ventilation is the important link of ensuring miner safety and improving mining efficiency, and good ventilation system can effectively dilute and exclude harmful gas (such as methane, carbon dioxide and dust) generated in underground, and provide fresh air, protect the health and safety of miners, and the following are some key points about coal mine underground ventilation:

[0003] Ventilation system design: underground ventilation system usually includes main fan, auxiliary fan, ventilation channel, air door, etc., when designing, the scale of mine, geological conditions, mining method and gas emission situation need to be considered.

[0004] Ventilation mode: common ventilation mode includes natural ventilation and mechanical ventilation, natural ventilation relies on temperature difference and air pressure difference to flow air, and mechanical ventilation uses fan to force air flow.

[0005] Based on the above existing coal mine underground ventilation mode, after external air enters into mine, the air is sucked in by mechanical ventilation mode and filtered by filter screen, and then discharged, to promote air flow in mine, but filter screen filtering mode is prone to cause filter screen blockage, and filtering service life is limited, which is not conducive to effective filtration of impurities in air and guaranteeing air flow smoothness, therefore, the present application designs a kind of coal mine auxiliary ventilation structure underground to solve this prior art defect, which effectively filters and collects impurities and guarantees air flow smoothness. INVENTION CONTENTS

[0006] In view of the defects of the prior art, the utility model provides a kind of coal mine auxiliary ventilation structure underground, with the advantages such as effectively filtering and collecting impurities and guaranteeing air flow smoothness.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of coal mine auxiliary ventilation structure underground, including fan and the air inlet pipe being communicated at the air inlet of the fan;

[0008] The filter assembly for humidifying and filtering the entering air and precipitating and cleaning impurities is arranged on the fan;

[0009] The collection assembly for collecting precipitated impurities is arranged on the filter assembly;

[0010] The impurity lifting assembly is further arranged on the filter assembly.

[0011] As a preferred technical scheme of the utility model, the filter assembly comprises a water storage tank installed outside the fan, an inclined impurity guide plate is installed on the bottom wall of the water storage tank, a baffle is installed inside the water storage tank and located at the leftmost end of the inclined impurity guide plate, and an exhaust pipe in contact with the inclined impurity guide plate is communicated with the exhaust port of the fan; wherein, a gap exists between the baffle and the inclined impurity guide plate.

[0012] As a preferred technical scheme of the utility model, the upper opening of the water storage tank is provided with a cover for sealing the opening, and a plurality of air outlet pipes are communicated with the cover.

[0013] Wherein, the cover is provided with a switch sealing element for closing the gap between the baffle and the inclined impurity guide plate.

[0014] As a preferred technical scheme of the utility model, the collection assembly comprises an impurity discharge hole arranged outside the water storage tank and located at the left side of the baffle, and an impurity storage seat installed outside the water storage tank and located below the impurity discharge hole.

[0015] As a preferred technical scheme of the utility model, the impurity lifting assembly comprises an impurity filtering and draining element and a lifting element.

[0016] Wherein, the impurity filtering and draining element comprises a moving plate arranged on the bottom wall of the water storage tank and attached to the inclined impurity guide plate and the water storage tank, a plurality of drainage holes are formed in the moving plate, and filter cotton is attached to the upper surface of the moving plate.

[0017] As a preferred technical scheme of the utility model, the lifting element comprises a mounting seat installed on the surface of the cover, a servo motor is installed on the outside of the mounting seat, a rotating shaft is installed on the output shaft of the servo motor and rotatably connected to the inner wall of the mounting seat, a winding disc is installed on the outside of the rotating shaft, and a pull rope passing through the cover and connected to the moving plate is fixedly wound on the outside of the winding disc.

[0018] Wherein, the cover and the moving plate are installed with front and rear symmetrically distributed telescopic rods.

[0019] As a preferred technical scheme of the utility model, the switch sealing element comprises an electric push rod installed on the surface of the cover, and a switch plate closely attached to the surface of the baffle is installed on the push rod of the electric push rod.

[0020] Compared with the prior art, the technical scheme of the present application has the following advantages:

[0021] The coal mine auxiliary ventilation structure, through the air inlet pipe, the mine internal air is drawn in, through the exhaust pipe, the air is filtered and precipitated to the impurity lifting assembly in the filter assembly, and the impurities are lifted to the collection assembly for collection and storage by the impurity lifting assembly, so that the impurities in the air are effectively treated without affecting the air flow circulation, and the ventilation and fresh air are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a perspective view of the utility model;

[0023] Figure 2 It is a sectional perspective view of the utility model;

[0024] Figure 3 It is a partial perspective view of the utility model;

[0025] Figure 4 It is a left perspective view of the utility model.

[0026] In the drawing: 1, fan; 2, air inlet pipe; 3, water storage tank; 4, cover; 5, exhaust pipe; 6, air outlet pipe; 7, inclined impurity guide plate; 8, partition; 9, electric push rod; 10, switch plate; 11, moving plate; 12, drain hole; 13, filter cotton; 14, telescopic rod; 15, mounting seat; 16, servo motor; 17, rotating shaft; 18, winding disc; 19, pull rope; 20, impurity storage seat; 21, impurity discharge hole. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] Please refer to Figures 1 to 2 The coal mine auxiliary ventilation structure in the embodiment comprises a fan 1 and an air inlet pipe 2 communicated with the air inlet of the fan 1.

[0029] In the embodiment, the fan 1 is provided with a filter assembly for humidifying, filtering and precipitating and cleaning impurities in the entering air.

[0030] It should be noted that the filter assembly includes a water storage tank 3 that is fixed to the outside of the fan 1 by fastening screws. An inclined guide plate 7 is fixed to the bottom wall of the water storage tank 3. A partition plate 8 located at the leftmost end of the inclined guide plate 7 is fixed to the inside of the water storage tank 3. An exhaust pipe 5 that contacts the inclined guide plate 7 is connected to the exhaust port of the fan 1.

[0031] The inclined guide plate 7 is inclined at a 30-degree angle from left to right, and there is a gap between the partition plate 8 and the inclined guide plate 7.

[0032] It should be noted that the inclined guide plate 7 is tightly fitted to the front and rear side walls and the right side wall of the inner cavity of the water tank 3, the partition plate 8 is tightly fitted to the front and rear side walls of the inner cavity of the water tank 3, and the left side wall of the partition plate 8 is flush with the left side wall of the inclined guide plate 7.

[0033] The water storage tank 3 is provided with a cover 4 at the top opening to seal the opening, and the cover 4 is connected to multiple air outlet pipes 6.

[0034] The cover 4 is provided with a switch seal to close the gap between the partition 8 and the inclined guide plate 7.

[0035] The switch seal includes an electric push rod 9 that is fixed to the surface of the cover 4 by fastening screws. A switch plate 10 that is tightly fitted to the surface of the partition 8 is fixed to the push rod of the electric push rod 9 by fastening screws. The switch plate 10 is tightly fitted to the front and rear side walls of the inner cavity of the water storage tank 3.

[0036] Please see Figure 2 and 4 In this embodiment, the filter assembly is provided with a collection component for collecting precipitated impurities.

[0037] The collection assembly includes a discharge hole 21 located on the outside of the water tank 3 and on the left side of the partition 8, and a storage seat 20 installed and fixed on the outside of the water tank 3 below the discharge hole 21.

[0038] Please see Figures 2 to 3 In this embodiment, the filter assembly is further provided with an impurity lifting assembly that discharges the precipitated impurities into the collection assembly.

[0039] It should be noted that the impurity lifting component includes an impurity filtration and drainage component and a lifting component;

[0040] The impurity filtration and drainage component includes a movable plate 11 located on the bottom wall of the water storage tank 3 and attached to the inclined impurity guide plate 7 and the water storage tank 3. The movable plate 11 has multiple drainage holes 12, and the upper surface of the movable plate 11 is attached with filter cotton 13.

[0041] The moving plate 11 is equal in length and width to the filter cotton 13.

[0042] The moving plate 11 is equal in length and width to the space formed by the left side of the partition plate 8 and the water storage tank 3.

[0043] The surface of the water storage tank 3 is provided with a control cabinet for overall equipment system control and power supply.

[0044] The lifting member comprises a mounting seat 15 fixed to the surface of the cover 4 by fastening screws, the outside of the mounting seat 15 is fixed with a servo motor 16 by fastening screws, the output shaft of the servo motor 16 is fixed with a rotating shaft 17 rotatably connected to the inner wall of the mounting seat 15 by fastening screws, the outside of the rotating shaft 17 is fixed with a winding disc 18, and the outside of the winding disc 18 is fixed with a pull rope 19 passing through the cover 4 and connected to the moving plate 11.

[0045] It should be noted that the upper surface of the moving plate 11 is inclined downward by thirty degrees from right to left, so as to avoid the impurities from flowing into the hole 21 along the inclined surface when the moving plate 11 moves to the hole 21.

[0046] The cover 4 and the moving plate 11 are fixed with front and rear symmetrically distributed telescopic rods 14.

[0047] The working principle of the above embodiment is as follows:

[0048] The air in the mine is sucked into the water in the water storage tank 4 through the air inlet pipe 2 and the exhaust pipe 5, and the impurities in the water are filtered, and the dry air is humidified, and then the air is discharged into the mine through the air outlet pipe 6, so as to promote the air circulation in the mine and ensure the fresh and clean air.

[0049] In addition, the filtered impurities are deposited on the inclined impurity guide plate 7 in the water storage tank 3, and are guided into the space formed by the left side wall of the water storage tank 3 and the partition plate 8 on the left side of the bottom wall of the water storage tank 3, and the setting of the partition plate 8 also ensures that the space is in a static water state, so as to avoid the flow of impurities caused by the entering air.

[0050] Thus, when the impurities accumulate on the filter cotton 13 in the composition space, the gap between the partition plate 8, the inclined impurity guide plate 7 and the water storage tank 3 is sealed by the downward movement of the push switch plate 10 driven by the electric push rod 9, and then the winding disc 18 on the rotating shaft 17 is driven to rotate by the start of the servo motor 16, the pull rope 19 is wound at the same time, the moving plate 11 and the filter cotton 13 are pulled up by the pull rope 19, the telescopic rod 14 is retracted synchronously, the stored impurities are pulled up synchronously, the water in the impurities is discharged through the drain hole 12, the impurities are moved to the impurity discharge hole 21 and discharged into the impurity storage seat 20 through the impurity discharge hole 21, so that the impurities in the air are effectively treated without affecting the air flow, ensuring the ventilation and the fresh air.

[0051] After the impurities are discharged, the servo motor 16 is started again to drive the rotating shaft 17 to reverse, so that the moving plate 11 is lowered and reset to the bottom, and then the electric push rod 9 is started again to drive the switch plate 10 to move upward and reset.

[0052] The electrical components appearing in the text are electrically connected with the main control unit and the power supply. The main control unit can be a conventional known device such as a computer for control, and the existing disclosed power connection technology is not described in detail.

Claims

1. An auxiliary ventilation structure for underground coal mine, comprising a fan (1) and an air inlet pipe (2) connected to the air inlet of the fan (1); characterized in that The fan (1) is provided with a filter assembly for humidifying and filtering the entering air and precipitating and cleaning impurities; The filter assembly is provided with a collection assembly for collecting precipitated impurities; The filter assembly is also provided with an impurity lifting assembly.

2. The auxiliary ventilation structure for underground coal mine of claim 1, wherein: The filter assembly comprises a water storage tank (3) installed outside the fan (1), the bottom wall of the water storage tank (3) is provided with an inclined impurity guide plate (7), the inside of the water storage tank (3) is provided with a partition plate (8) located at the leftmost end of the inclined impurity guide plate (7), and the exhaust port of the fan (1) is connected with an exhaust pipe (5) in contact with the inclined impurity guide plate (7). There is a gap between the partition plate (8) and the inclined impurity guide plate (7).

3. The auxiliary ventilation structure for underground coal mine of claim 2, wherein: An air outlet pipe (6) is connected to the gap between the partition plate (8) and the inclined impurity guide plate (7). The gap between the partition plate (8) and the inclined impurity guide plate (7) is closed by a switch sealing element.

4. The auxiliary ventilation structure of a coal mine underground according to claim 2, characterized in that: The collection assembly comprises a impurity discharge hole (21) located outside the water storage tank (3) and left to the partition plate (8), and a impurity storage seat (20) installed outside the water storage tank (3) and below the impurity discharge hole (21).

5. The auxiliary ventilation structure for underground coal mine of claim 3, wherein: The impurity lifting assembly comprises an impurity filtering and draining element and a lifting element. The impurity filtering and draining element comprises a moving plate (11) arranged between the bottom wall of the water storage tank (3) and the inclined impurity guide plate (7) and the water storage tank (3), a plurality of drainage holes (12) are formed in the moving plate (11), and a filter cotton (13) is attached to the upper surface of the moving plate (11).

6. The auxiliary underground coal mine ventilation structure of claim 5, wherein: The lifting element comprises a mounting seat (15) mounted on the surface of the cover (4), a servo motor (16) is mounted on the outside of the mounting seat (15), a rotating shaft (17) is mounted on the output shaft of the servo motor (16) and rotatably connected with the inner wall of the mounting seat (15), a winding disc (18) is mounted on the outside of the rotating shaft (17), and a pull rope (19) is wound and fixed on the outside of the winding disc (18) and connected with the moving plate (11). The switch sealing element comprises an electric push rod (9) mounted on the surface of the cover (4), and a switch plate (10) is mounted on the push rod of the electric push rod (9) and closely attached to the surface of the partition plate (8).

7. The auxiliary ventilation structure according to claim 3, characterized in that: The switch sealing element comprises an electric push rod (9) mounted on the surface of the cover (4), and a switch plate (10) is mounted on the push rod of the electric push rod (9) and closely attached to the surface of the partition plate (8).

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