Dust removal and ventilation equipment for coal mine

Abstract

The utility model provides a kind of coal mine dust removal ventilation equipment, it includes: box, vertical partition is fixedly installed in box interior, box top end inside is respectively fixedly installed with lower partition and upper partition, upper partition side is inserted with frame and is penetrated, frame top is equipped with the compacting mechanism located in the box, the box inside fixedly connected with fixed pipe in the other side of upper partition. The present application adopts the ventilation of box when coal mine dust removal, airflow is guided using partition, and cooperate atomization dust removal to capture dust in air, set frame and can be used for filter material storage, facilitate further filtration dust, ensure dust removal effect, and after long-term use, filter material cleaning can be realized using the reflux of water source, the disassembly of frame can be realized by compacting mechanism, subsequent coal mine dust removal ventilation is facilitated, and multiple filter screens are set for dust and impurity filtration, stored in box bottom, facilitate subsequent cleaning, and the collected water source can be reused, improve the use performance of coal mine dust removal ventilation equipment.

Description

Technical Field

[0001] This utility model relates to a dust removal and ventilation device for coal mines, belonging to the field of coal mine dust removal and ventilation technology. Background Technology

[0002] Dust control and ventilation in coal mines is a crucial aspect of safe production, primarily used to reduce underground dust concentration, improve the working environment, protect miners' health, and prevent explosions. Methods include: increasing airflow to dilute dust concentration (but requires coordination with other dust control measures); wet dust collection (using methods like spraying water and wet drilling to suppress dust, low cost but affected by water quality); mechanical dust collection (such as cyclone dust collectors and baghouse dust collectors, high efficiency but complex maintenance); and foam dust collection (covering the dust source with foam, suitable for areas with high dust concentrations).

[0003] Dust removal and ventilation in coal mines is an important step in coal mine production. However, in actual dust removal and ventilation processes, the ventilation effect is poor, water consumption is high, and prolonged filtration can lead to severe dust accumulation on the surface of the filter material, affecting the dust removal effect. Moreover, subsequent cleaning work is relatively complicated, increasing the cleaning time, and replacement is also inconvenient, increasing the difficulty of operation and affecting the smooth progress of subsequent dust removal and ventilation. Utility Model Content

[0004] This utility model provides a coal mine dust removal and ventilation device to solve the technical problem of high cleaning difficulty in dust removal and ventilation equipment.

[0005] This utility model solves the above-mentioned technical problems through the following technical solutions:

[0006] This utility model provides a dust removal and ventilation device for coal mines, comprising:

[0007] The housing has vertical partitions fixedly installed inside. A lower partition and an upper partition are fixedly installed inside the top of the housing, located on the inner wall of the vertical partitions. Both the upper and lower partitions are fixedly connected to the side walls of the vertical partitions. A coarse filter screen is arranged at an angle in the middle of the lower partition. A frame plate is inserted through one side of the upper partition. A pressing mechanism located inside the housing is located above the frame plate. The frame plate is sealed to the surface of the lower partition. A fixing pipe is fixedly connected inside the housing on the other side of the upper partition. A fine filter screen is fixedly connected to the vertical partition located below the lower partition.

[0008] In this technical solution, an air inlet and an air outlet are fixedly installed on both sides of the top of the box, and the air inlet and air outlet are respectively arranged on both sides of the airflow channel formed between the upper partition and the lower partition.

[0009] In this technical solution, the upper partition is a V-shaped structure, and a number of evenly distributed atomizing nozzles are connected through one side of the upper partition. The atomizing nozzles are correspondingly arranged on the air inlet side, and each atomizing nozzle is connected to the inside of the fixed pipe.

[0010] In this technical solution, the vertical partition is set on one side of the box body and located on the side of the air inlet and air outlet. The vertical partition is fixedly connected to the fixed pipe, and the fixed pipe is connected to the inside of the frame plate through a flexible hose.

[0011] In this technical solution, a water pump is fixedly installed on the top side wall of the vertical partition, the water pump is fixedly connected to the delivery pipe, and the water pump and the upper partition are respectively located on both sides of the vertical partition.

[0012] In this technical solution, one end of the conveying pipe extends to the bottom of the box, and the other end of the conveying pipe passes through the vertical partition and is connected to the rigid part of one end of the hose. Two control valves are fixedly connected to the end of the hose, and the two control valves are located on both sides of the conveying pipe respectively.

[0013] In this technical solution, the frame plate is a square hollow structure, and a flow equalization plate with fine holes is fixedly installed on the top of the frame plate. Both sides of the frame plate are provided with baffles located inside the airflow channel, and the frame plate between the two baffles is filled with filter material for gas filtration.

[0014] In this technical solution, the clamping mechanism includes a crossbar, the two ends of which are fixedly connected to the side wall of the vertical partition and the inner wall of the box, respectively. Both ends of the crossbar are movably fitted with a pressure plate with a bent structure. The pressure plate is attached to the top surface of the frame plate. There is a gap between the frame plate and the vertical partition that is larger than the width of the pressure plate. The bottom end of the pressure plate is fixedly connected to the upper partition by bolts.

[0015] In this technical solution, the top of the box is provided with an inspection port, which is located above the upper partition.

[0016] In this technical solution, the lower partition is fixedly connected to a collection tank corresponding to the coarse filter screen at the bottom end of the lower partition. One of the sewage pipes is fixedly installed at the bottom end of the collection tank, and the other sewage pipe is connected to the bottom of the box.

[0017] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0018] The positive and progressive effects of this utility model are as follows:

[0019] The aforementioned coal mine dust removal and ventilation equipment uses a box-type enclosure for ventilation during coal mine dust removal. It utilizes partitions to guide airflow and employs atomizing dust removal to capture airborne dust particles. Frames are provided for storing filter media, facilitating further dust filtration and ensuring effective dust removal. After long-term use, the filter media can be cleaned using water backflow, ensuring thorough cleaning. When replacement is needed, the frame plates can be disassembled via a clamping mechanism, effectively improving operational convenience, shortening maintenance time, and facilitating subsequent coal mine dust removal and ventilation. Multiple filter screens are installed for filtering dust and impurities and stored at the bottom of the enclosure for easy cleaning. The collected water can be reused, reducing water consumption and improving the overall performance of the coal mine dust removal and ventilation equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the half-section structure of this utility model.

[0022] Figure 3 This is a partial three-dimensional structural diagram of the upper partition of this utility model.

[0023] Figure 4 This is a partial three-dimensional structural diagram of the vertical partition of this utility model.

[0024] Figure 5 This is a schematic diagram of the internal side view structure of this utility model.

[0025] Figure 6 This is a schematic diagram of a partial three-dimensional structure of the box body in a top view of this utility model.

[0026] Explanation of reference numerals in the attached figures

[0027] 1. Housing; 2. Vertical partition; 3. Air inlet; 4. Air outlet; 5. Lower partition; 6. Coarse filter; 7. Upper partition; 8. Frame plate; 9. Flow equalization plate; 10. Baffle; 11. Fixing pipe; 12. Atomizing nozzle; 13. Hose; 14. Control valve; 15. Crossbar; 16. Pressure plate; 17. Bolt; 18. Inspection port; 19. Collection tank; 20. Sewage pipe; 21. Water pump; 22. Delivery pipe; 23. Fine filter. Detailed Implementation

[0028] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0029] like Figure 1-6 As shown, the coal mine dust removal and ventilation equipment includes:

[0030] The box body 1 has a vertical partition 2 fixedly installed inside. A lower partition 5 and an upper partition 7 are fixedly installed inside the top of the box body 1, located on the inner wall of the vertical partition 2. The upper partition 7 and the lower partition 5 are fixedly connected to the side wall of the vertical partition 2. A coarse filter 6 is provided in the middle of the lower partition 5. A frame plate 8 is inserted through one side of the upper partition 7. A pressing mechanism is provided above the frame plate 8 inside the box body 1. The frame plate 8 is sealed and fitted to the surface of the lower partition 5. A fixing pipe 11 is fixedly connected inside the box body 1 on the other side of the upper partition 7. A fine filter 23 is fixedly connected to the vertical partition 2 located below the lower partition 5.

[0031] Air inlets 3 and air outlets 4 are fixedly installed on the top two sides of the housing 1, respectively. The air inlets 3 and air outlets 4 are respectively located on both sides of the airflow channel formed between the upper partition 7 and the lower partition 5. The upper partition 7 has a V-shaped structure, and several evenly distributed atomizing nozzles 12 are connected through one side of the upper partition 7. The atomizing nozzles 12 are located on the side of the air inlet 3, and each atomizing nozzle 12 is connected to the inside of the fixed pipe 11. The vertical partition 2 is located on one side of the housing 1 and on the side of the air inlet 3 and the air outlet 4. The vertical partition 2 is fixedly connected to the fixed pipe 11, and the fixed pipe 11 is connected to the inside of the frame plate 8 through the flexible hose 13.

[0032] In this technical solution, the air inlet 3 is connected to the air pump for coal mine airflow transmission, so that the airflow in the coal mine carries dust through the airflow channel between the upper partition 7 and the lower partition 5, and is discharged through the air outlet 4. When the airflow is flowing, the atomizing nozzle 12 sprays water mist, causing the dust to settle and be guided on the surface of the lower partition 5. After being filtered and dusted again through the side frame plate 8, the gas is discharged. When the frame plate 8 needs to be cleaned, water is delivered to the inside of the frame plate 8 through the hose 13 to achieve backwashing operation.

[0033] A water pump 21 is fixedly installed on the top side wall of the vertical partition 2. The water pump 21 is fixedly connected to the delivery pipe 22. The water pump 21 and the upper partition 7 are respectively located on both sides of the vertical partition 2. One end of the delivery pipe 22 extends to the bottom of the box 1, and the other end of the delivery pipe 22 passes through the vertical partition 2 and is connected to the rigid part of one end of the hose 13. Two control valves 14 are fixedly connected to the end of the hose 13, and the two control valves 14 are respectively located on both sides of the delivery pipe 22.

[0034] In this technical solution, the water pump 21 can transport water from the bottom of the housing 1 through the delivery pipe 22 to the fixed pipe 11 and discharge it through multiple atomizing nozzles 12. When it is necessary to clean the frame plate 8, one of the control valves 14 is closed and the other control valve 14 is opened, so that the water in the delivery pipe 22 enters the frame plate 8 through the hose 13, thereby achieving backwashing cleaning of the frame plate 8 and ensuring effective unblocking of the filter material.

[0035] The frame plate 8 is a square hollow structure. A flow equalization plate 9 with fine holes is fixedly installed on the top of the frame plate 8. Both sides of the frame plate 8 are provided with baffles 10 located inside the airflow channel. The frame plate 8 between the two baffles 10 is filled with filter material for gas filtration. The pressing mechanism includes a crossbar 15. The two ends of the crossbar 15 are fixedly connected to the side wall of the vertical partition 2 and the inner wall of the box 1, respectively. Both ends of the crossbar 15 are movably sleeved with a bent pressure plate 16. The pressure plate 16 is attached to the top surface of the frame plate 8. There is a gap between the frame plate 8 and the vertical partition 2 that is larger than the width of the pressure plate 16. The bottom end of the pressure plate 16 is fixedly connected to the upper partition 7 by bolts 17.

[0036] In this technical solution, the flow equalization plate 9 is set to allow water to enter the frame plate 8 evenly, and the baffle is set for filter media storage to ensure air circulation and prevent filter media leakage. The filter media is preferably one or more of sponge and activated carbon.

[0037] Furthermore, after inserting the frame plate 8 into the upper partition 7, move the pressure plate 16 to above the frame plate 8, rotate the pressure plate 16 to press the frame plate 8 against the surface of the lower partition 5, and tighten the bolts 17 to fix the pressure plate 16, thereby achieving stable installation of the frame plate 8. When it is necessary to remove and replace it, remove the bolts 17 and move the pressure plate 16 on the crossbar 15 to move the pressure plate 16 to the gap between the frame plate 8 and the vertical partition 2. At this time, the frame plate 8 can be pulled out.

[0038] The top of the box 1 is provided with an inspection port 18, which is located above the upper partition 7; the lower partition 5 is provided with a collection trough 19 corresponding to the coarse filter screen 6 fixedly connected to the bottom of the lower partition 5, and one of the drain pipes 20 is fixedly installed at the bottom of the collection trough 19, and the other drain pipe 20 is connected to the bottom of the box 1.

[0039] In this technical solution, the frame plate 8 can be disassembled through the inspection port 18, which facilitates replacement and also makes it convenient to operate the control valve 14.

[0040] Specifically, during dust removal, water mist condenses dust and adheres to the surface of the lower partition 5. The condensed water mist forms a water flow that carries foreign objects through the surface of the coarse filter screen 6, causing fine dust to fall into the interior of the housing 1. Larger foreign objects flow with the water flow to the collection tank 19 for collection and sedimentation. When the water pump 21 is working, water flows through the bottom of the housing 1, allowing the water to be filtered again through the fine filter screen 23 before being pumped out by the water pump 21, thus realizing the circulation of water. After the water is consumed, water can be added back into the housing 1 for continuous use.

[0041] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A coal mine dust extraction ventilation apparatus, characterised in that, include: The box (1) has a vertical partition (2) fixedly installed inside. The top of the box (1) located on the inner wall of the vertical partition (2) has a lower partition (5) and an upper partition (7) fixedly installed inside. The upper partition (7) and the lower partition (5) are fixedly connected to the side wall of the vertical partition (2). The lower partition (5) has a coarse filter screen (6) arranged at an incline in the middle. The upper partition (7) has a frame plate (8) inserted through one side. The frame plate (8) has a pressing mechanism located inside the box (1) above it. The frame plate (8) is sealed and fitted to the surface of the lower partition (5). The box (1) on the other side of the upper partition (7) has a fixed pipe (11) fixedly connected inside. The vertical partition (2) located below the lower partition (5) has a fine filter screen (23) fixedly connected.

2. The coal mine dust extraction ventilation apparatus of claim 1, wherein: The top two sides of the box (1) are respectively fixedly installed with an air inlet (3) and an air outlet (4), and the air inlet (3) and the air outlet (4) are respectively arranged on both sides of the airflow channel formed between the upper partition (7) and the lower partition (5).

3. The coal mine dust removal and ventilation device of claim 1, wherein: The upper partition (7) has a V-shaped structure. Several evenly distributed atomizing nozzles (12) are connected through one side of the upper partition (7). The atomizing nozzles (12) are correspondingly arranged on the side of the air inlet (3), and each atomizing nozzle (12) is connected to the inside of the fixed tube (11).

4. The coal mine dust extraction ventilation apparatus of claim 1, wherein: The vertical partition (2) is set on one side of the box body (1) and located on the side of the air inlet (3) and the air outlet (4). The vertical partition (2) is fixedly connected to the fixed pipe (11), and the fixed pipe (11) is connected to the inside of the frame plate (8) through the flexible hose (13).

5. The coal mine dust removal and ventilation equipment as described in claim 1, characterized in that: A water pump (21) is fixedly installed on the top side wall of the vertical partition (2). The water pump (21) is fixedly connected to the delivery pipe (22). The water pump (21) and the upper partition (7) are respectively located on both sides of the vertical partition (2).

6. The coal mine dust removal and ventilation equipment as described in claim 5, characterized in that: One end of the conveying pipe (22) extends to the bottom of the box (1), and the other end of the conveying pipe (22) passes through the vertical partition (2) and is connected to the rigid part of one end of the hose (13). Two control valves (14) are fixedly connected to the end of the hose (13), and the two control valves (14) are located on both sides of the conveying pipe (22).

7. The coal mine dust removal and ventilation equipment as described in claim 1, characterized in that: The frame plate (8) is a square hollow structure. A flow equalization plate (9) with fine holes is fixedly installed on the top of the frame plate (8). Both sides of the frame plate (8) are provided with baffles (10) located inside the airflow channel. The frame plate (8) between the two baffles (10) is filled with filter material for gas filtration.

8. The coal mine dust removal and ventilation equipment as described in claim 1, characterized in that: The clamping mechanism includes a crossbar (15), the two ends of which are fixedly connected to the side wall of the vertical partition (2) and the inner wall of the box (1), respectively. Both ends of the crossbar (15) are movably fitted with a pressure plate (16) with a bent structure. The pressure plate (16) is attached to the top surface of the frame plate (8). There is a gap between the frame plate (8) and the vertical partition (2) that is greater than the width of the pressure plate (16). The bottom end of the pressure plate (16) is fixedly connected to the upper partition (7) by bolts (17).

9. The coal mine dust removal and ventilation equipment as described in claim 1, characterized in that: The top of the box (1) is provided with an inspection port (18), which is located above the upper partition (7).

10. The coal mine dust removal and ventilation equipment as described in claim 1, characterized in that: The lower partition (5) is fixedly connected to a collection trough (19) corresponding to the coarse filter screen (6) at the bottom end of the lower partition (5). One of the drain pipes (20) is fixedly installed at the bottom end of the collection trough (19), and the other drain pipe (20) is connected to the bottom of the box body (1).

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