Ventilation and dust removal device for underground coal mine

Abstract

The utility model belongs to the field of coal mine ventilation and dust removal, and particularly relates to an underground coal mine ventilation and dust removal device which comprises a base, a first communication box fixedly connected to the upper end of the base, an air suction pipe fixedly connected to the front end of the first communication box in a through mode, a connecting pipe fixedly connected to the rear end of the first communication box in a through mode and a centrifugal fan arranged at the upper end of the base. The input end of the centrifugal fan is connected with the connecting pipe in a penetrating mode, and the output end of the centrifugal fan is fixedly connected with a second communicating box in a penetrating mode. A water source flows into the U-shaped communication box through the water injection pipe, the first atomizer sprays the interior of the air outlet pipe for dust falling, liquid at the lower end of the inner wall of the air outlet pipe flows into the second atomizer on the air suction pipe from the flow pipe, and air sucked into the air suction pipe is subjected to primary dust falling; and the dust falling and filtering effects are greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of coal mine ventilation and dust removal, specifically relating to underground ventilation and dust removal devices in coal mines. Background Technology

[0002] Mine ventilation systems introduce fresh air to provide necessary oxygen for underground workers and expel harmful gases such as methane, carbon monoxide, and carbon dioxide, reducing harm to personnel. At the same time, they can also carry away mine dust through airflow, reducing dust concentration, improving the working environment, and preventing occupational diseases such as pneumoconiosis in miners.

[0003] Existing coal mine ventilation and dust removal devices may lack efficient and multi-level dust suppression mechanisms, resulting in unsatisfactory dust removal effects in high-dust environments such as underground coal mines, and may also cause water waste during dust removal.

[0004] Therefore, a ventilation and dust removal device for underground coal mines is proposed. By setting up a multi-layer filtration structure and a recycling structure, the dust reduction efficiency is improved, and the water resource utilization efficiency is improved through the recycling structure. Utility Model Content

[0005] In order to overcome the problems of poor dust removal effect and low water energy efficiency of existing ventilation and dust removal devices used in coal mines, a new ventilation and dust removal device for underground coal mines is proposed.

[0006] The technical solution of this utility model is as follows: a ventilation and dust removal device for underground coal mines, including a base, a first connecting box fixedly connected to the upper end of the base, an air intake pipe fixedly connected to the front end of the first connecting box, a connecting pipe fixedly connected to the rear end of the first connecting box, a centrifugal fan installed at the upper end of the base, the input end of the centrifugal fan being connected to the connecting pipe, a second connecting box fixedly connected to the output end of the centrifugal fan, an air outlet pipe fixedly connected to the front end of the second connecting box, and a dust suppression component installed on the air outlet pipe.

[0007] Preferably, when ventilation and dust removal are required in a coal mine, a centrifugal fan is turned on to allow dusty air to enter through the suction pipe. The air is then filtered through the first connecting box and discharged through the outlet pipe on the second connecting box. During the discharge process, the outlet pipe passes through a dust-suppressing component to suppress some of the dust in the outlet pipe. Then, liquid flows into the suction pipe, carrying away the dust in the suction pipe for further dust suppression.

[0008] Preferably, the dust suppression component includes a first tank, a water injection pipe, a U-shaped connecting box, a first atomizer, a flow pipe, and a second atomizer. The outer wall of the exhaust pipe is provided with the first tank, the inner wall of the first tank is fixedly connected to the water injection pipe, the lower end of the water injection pipe passes through the first tank and is fixedly connected to the U-shaped connecting box, the upper end of the U-shaped connecting box is attached to the upper part of the inner wall of the exhaust pipe, the lower end of the U-shaped connecting box is provided with evenly distributed first atomizers, the exhaust pipe and the intake pipe are connected through the flow pipe, and the flow pipe extends to the inner wall of the intake pipe and is provided with a second atomizer.

[0009] Preferably, a rotating ear plate is rotatably provided at the lower end of the base, and second sliding wheels are rotatably provided at the left and right ends of the rotating ear plate, while first sliding wheels are rotatably provided at the rear of the left and right ends of the base.

[0010] Preferably, a drawer is slidably provided on the right end of the first connecting box, and uniformly distributed filter holes are opened through the front and rear ends of the drawer. The drawer is filled with uniformly distributed filter cotton, and a handle is fixedly connected to the left end of the drawer.

[0011] Preferably, a first support block is fixed to the upper end of the base, and a second support block is fixed to the upper end of the first connecting box. The upper end of the first support block is attached to the lower part of the outer wall of the air inhalation pipe, and the upper end of the second support block is attached to the lower part of the outer wall of the air outlet pipe.

[0012] Preferably, a second baffle is fixed to the inner wall of the air outlet pipe, and a first baffle is fixed to the inner wall of the air inlet pipe.

[0013] Preferably, the filter cotton is stacked on the inner wall of the drawer.

[0014] The beneficial effects of this utility model are:

[0015] 1. Water is fed into the U-shaped connecting box through the water injection pipe. Then, the first atomizer sprays the inside of the air outlet pipe to reduce dust. The liquid at the lower end of the inner wall of the air outlet pipe flows into the second atomizer on the air intake pipe through the flow pipe to perform preliminary dust reduction on the gas inhaled in the air intake pipe, which greatly improves the dust reduction and filtration effect.

[0016] 2. By pulling the drawer box out of the first connecting box, the filter cotton can be directly replaced, removed, cleaned, and maintained. When filtering is performed, dust and gas flow into the first connecting box through the suction pipe, then undergo preliminary filtration through the filter hole at the front of the drawer box, then secondary filtration through the filter cotton, and finally tertiary filtration through the filter hole at the rear of the drawer box, thus preventing blockage in the centrifugal fan. The filter cotton on the drawer box adsorbs dust, achieving rapid filtration and replacement.

[0017] 3. The second baffle on the outlet pipe can prevent liquid from flowing back into the second connecting box while facilitating the introduction of liquid into the flow pipe. The first baffle on the suction pipe can prevent liquid on the suction pipe from flowing into the first connecting box. Attached Figure Description

[0018] Figure 1 The diagram shown is a three-dimensional structural schematic of the underground ventilation and dust removal device for coal mines according to this utility model.

[0019] Figure 2 The diagram shown is a three-dimensional structural schematic of the base of the underground ventilation and dust removal device for coal mines according to this utility model.

[0020] Figure 3 The diagram shown is a three-dimensional disassembled structural diagram of the filter element of the underground ventilation and dust removal device for coal mines according to this utility model.

[0021] Figure 4 The diagram shown is a three-dimensional cross-sectional view of the ventilation and dust removal device for underground coal mines according to this utility model.

[0022] Figure 5 The diagram shown is a partially enlarged three-dimensional structural schematic of point A of the underground ventilation and dust removal device of this utility model.

[0023] The markings in the attached diagram are as follows: 1. Base; 101. First tank; 102. Water inlet pipe; 103. U-shaped connecting box; 104. First atomizer; 105. Flow pipe; 106. Second atomizer; 2. First sliding wheel; 3. Rotating ear plate; 4. Second sliding wheel; 5. First support block; 6. First connecting box; 7. Inhalation pipe; 8. Connecting pipe; 9. Centrifugal fan; 10. Second support block; 11. Second connecting box; 12. First baffle; 13. Air outlet pipe; 14. Second baffle; 15. Drawer box; 16. Filter hole; 17. Handle; 18. Filter cotton. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Please see Figures 1-5 This utility model provides an embodiment of a ventilation and dust removal device for underground coal mines, comprising a base 1, characterized in that: a first connecting box 6 is fixedly connected to the upper end of the base 1, an air intake pipe 7 is fixedly connected to the front end of the first connecting box 6, a connecting pipe 8 is fixedly connected to the rear end of the first connecting box 6, a centrifugal fan 9 is provided at the upper end of the base 1, the input end of the centrifugal fan 9 is connected to the connecting pipe 8, a second connecting box 11 is fixedly connected to the output end of the centrifugal fan 9, an air outlet pipe 13 is fixedly connected to the front end of the second connecting box 11, and a dust suppression component is provided on the air outlet pipe 13.

[0026] Please see Figures 1-3 In this embodiment, a rotating ear plate 3 is rotatably provided at the lower end of the base 1, and second sliding wheels 4 are rotatably provided at the left and right ends of the rotating ear plate 3. First sliding wheels 2 are rotatably provided at the rear of the left and right ends of the base 1. The device displacement can be achieved through the first sliding wheels 2 and the second sliding wheels 4. A drawer box 15 is slidably provided at the right end of the first connecting box 6. Evenly distributed filter holes 16 are provided through the front and rear ends of the drawer box 15. Evenly distributed filter cotton 18 is provided inside the drawer box 15. A handle 17 is fixedly connected to the left end of the drawer box 15. The drawer box 15 can be pulled out of the first connecting box 6 to directly replace, remove, and clean the filter cotton 18. A first support block 5 is fixedly connected to the upper end of the base 1. The upper end of the first support block 5 is fixedly connected to the lower part of the outer wall of the suction pipe 7, and the upper end of the second support block 10 is fixedly connected to the lower part of the outer wall of the exhaust pipe 13. The second support block 10 and the first support block 5 can support the exhaust pipe 13 and the suction pipe 7 respectively. The inner wall of the exhaust pipe 13 is fixedly connected to the second baffle 14, and the inner wall of the suction pipe 7 is fixedly connected to the first baffle 12. The second baffle 14 on the exhaust pipe 13 can prevent liquid from flowing back into the second connecting box 11 and facilitate the introduction of liquid into the flow pipe 105. The first baffle 12 on the suction pipe 7 can prevent liquid on the suction pipe 7 from flowing into the first connecting box 6. The filter cotton 18 is stacked on the inner wall of the drawer box 15.

[0027] Please see Figures 4-5 In this embodiment, the dust suppression assembly includes a first tank 101, a water injection pipe 102, a U-shaped connecting box 103, a first atomizer 104, a flow pipe 105, and a second atomizer 106. The outer wall of the air outlet pipe 13 is provided with the first tank 101 through it. The inner wall of the first tank 101 is fixedly connected to the water injection pipe 102. The lower end of the water injection pipe 102 passes through the first tank 101 and is fixedly connected to the U-shaped connecting box 103. The upper end of the U-shaped connecting box 103 is attached to the upper part of the inner wall of the air outlet pipe 13. The lower end of the U-shaped connecting box 103 is provided with evenly distributed first atomizers 104. The air outlet pipe 13 and the air intake pipe 7 are connected through the flow pipe 105. The flow pipe 105 extends to the inner wall of the air intake pipe 7 and is provided with a second atomizer 106.

[0028] When working, when ventilation and dust removal work is required in the coal mine, the centrifugal fan 9 is turned on to allow dusty air to enter the suction pipe 7. Liquid flows from the flow pipe 105 into the second atomizer 106 on the suction pipe 7 to perform preliminary dust reduction work on the gas drawn into the suction pipe 7.

[0029] Next, the dusty gas flows into the first connecting box 6 through the suction pipe 7, then undergoes preliminary filtration through the front filter hole 16 of the drawer box 15, then undergoes secondary filtration through the filter cotton 18, and then undergoes tertiary filtration through the rear filter hole 16 of the drawer box 15, thereby preventing blockage in the centrifugal fan 9, and adsorbing the dust through the filter cotton 18 on the drawer box 15.

[0030] Water is fed into the U-shaped connecting box 103 through the water injection pipe 102, and then the first atomizer 104 sprays the inside of the air outlet pipe 13 to reduce dust. Then, the liquid at the lower end of the inner wall of the air outlet pipe 13 flows from the flow pipe 105 into the second atomizer 106 on the air intake pipe 7 to perform preliminary filtration of the dust gas.

[0031] Through the above steps, when ventilation and dust removal work is required in the coal mine, the centrifugal fan 9 is turned on to allow dusty air to enter the suction pipe 7. The air is then filtered through the first connecting box 6 and discharged through the exhaust pipe 13 on the second connecting box 11. During the discharge process, the exhaust pipe 13 passes through a dust settling component to reduce some of the dust in the exhaust pipe 13. Then, liquid flows into the suction pipe 7, carrying the dust in the suction pipe 7 for further dust reduction.

[0032] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A ventilation and dust removal device for underground coal mines, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly connected to a first connecting box (6), the front end of the first connecting box (6) is fixedly connected to a suction pipe (7), the rear end of the first connecting box (6) is fixedly connected to a connecting pipe (8), the upper end of the base (1) is provided with a centrifugal fan (9), the input end of the centrifugal fan (9) is connected to the connecting pipe (8), the output end of the centrifugal fan (9) is fixedly connected to a second connecting box (11), the front end of the second connecting box (11) is fixedly connected to an exhaust pipe (13), and a dust suppression component is provided on the exhaust pipe (13).

2. The coal mine underground ventilation and dust removal device according to claim 1, characterized in that: The dust suppression assembly includes a first tank (101), a water injection pipe (102), a U-shaped connecting box (103), a first atomizer (104), a flow pipe (105), and a second atomizer (106). The outer wall of the air outlet pipe (13) is provided with the first tank (101). The inner wall of the first tank (101) is fixedly connected to the water injection pipe (102). The lower end of the water injection pipe (102) passes through the first tank (101) and is fixedly connected to the U-shaped connecting box (103). The upper end of the U-shaped connecting box (103) is attached to the upper part of the inner wall of the air outlet pipe (13). The lower end of the U-shaped connecting box (103) is provided with evenly distributed first atomizers (104). The air outlet pipe (13) and the air intake pipe (7) are connected through the flow pipe (105). The flow pipe (105) extends to the inner wall of the air intake pipe (7) and is provided with a second atomizer (106).

3. The underground ventilation and dust removal device for coal mines according to claim 1, characterized in that: The lower end of the base (1) is rotatably provided with a rotating ear plate (3), the left and right ends of the rotating ear plate (3) are rotatably provided with a second sliding wheel (4), and the rear of the left and right ends of the base (1) are rotatably provided with a first sliding wheel (2).

4. The underground ventilation and dust removal device for coal mines according to claim 1, characterized in that: A drawer (15) is slidably provided on the right end of the first connecting box (6). The front and rear ends of the drawer (15) are provided with evenly distributed filter holes (16). The interior of the drawer (15) is provided with evenly distributed filter cotton (18). A handle (17) is fixedly connected to the left end of the drawer (15).

5. The underground ventilation and dust removal device for coal mines according to claim 1, characterized in that: The upper end of the base (1) is fixed with a first support block (5), and the upper end of the first connecting box (6) is fixed with a second support block (10). The upper end of the first support block (5) is attached to the lower part of the outer wall of the suction pipe (7), and the upper end of the second support block (10) is attached to the lower part of the outer wall of the exhaust pipe (13).

6. The underground ventilation and dust removal device for coal mines according to claim 3, characterized in that: The inner wall of the air outlet pipe (13) is fixed with a second baffle (14), and the inner wall of the air inlet pipe (7) is fixed with a first baffle (12).

7. The coal mine underground ventilation and dust removal device according to claim 4, characterized in that: The filter cotton (18) is stacked on the inner wall of the drawer (15).

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