Ventilation and dust removal device for coal mine operation

Abstract

The utility model discloses a ventilation and dust removal device for coal mine operation, and relates to the field of coal mine ventilation, the ventilation and dust removal device comprises a ventilation structure, a dust falling structure and a filtering structure, the ventilation structure comprises a dust falling cylinder, an air inlet pipe fixedly installed on the surface of the dust falling cylinder, an exhaust pipe fixedly installed at the upper end of the dust falling cylinder, and a fan fixedly installed at the upper end of the exhaust pipe; and the dust falling structure is arranged in the dust falling cylinder and comprises a spraying pipe and a net plate which are fixedly mounted on the inner wall of the dust falling cylinder, a blow-off pipe fixedly mounted at the lower end of the dust falling cylinder and a water supply assembly communicated with the spraying pipe, and the spraying pipe and the net plate are fixedly mounted on the inner wall of the dust falling cylinder. By arranging the ventilation structure, the dust falling structure and the filtering structure, compared with the prior art, dust can be subjected to dust falling through the dust falling structure, muddy water obtained after dust falling can be intercepted through the filter screen part, meanwhile, the filter screen belt can be cleaned through the cleaning part, and the defect that a filter element needs to be frequently replaced traditionally is overcome; and the use of operators is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of coal mine ventilation, and in particular to a coal mine operation ventilation and dust removal device. Background Technology

[0002] Mine ventilation refers to the process of introducing fresh air into the mine to increase oxygen concentration, thereby diluting and removing toxic and harmful gases and dust. The basic tasks of mine ventilation are: to supply sufficient fresh air underground to meet the oxygen needs of personnel; to dilute harmful gases and dust underground to ensure safe production; and to regulate the underground climate to create a good working environment.

[0003] Chinese Patent Publication No. CN217724973U discloses a ventilation and dust removal device for coal mine operations, belonging to the field of coal mine operation technology. It includes a base and a dust collection box fixed to the top of the base. A filter frame is fitted into the top of the dust collection box, and a rotating shaft is embedded within the dust collection box. An installation tube is embedded in the side wall of the dust collection box. A filter element is embedded in the filter frame, and a positioning hole is opened in the side wall of the filter frame. A positioning rod that engages with the positioning hole is elastically inserted into the installation tube, and a pull rod connected to the positioning rod is slidably inserted into the side wall of the installation tube. Blades are fixed in a circular array on the outer wall of the rotating shaft, and a speed pointer is fixed in a circular array at the end of the rotating shaft extending out of the dust collection box. Universal wheels are fixedly installed in a rectangular array at the bottom of the base. Fastening frames are fitted at both ends of the dust collection box. This ventilation and dust removal device for coal mine operations facilitates the disassembly and cleaning of the filter components inside the dust collection device, improving the convenience of cleaning the dust collection device.

[0004] However, this device has the following drawbacks: after filtering dust, the filter components need to be disassembled and cleaned. Coal mine production generates a large amount of dust, leading to frequent cleaning of the filter components, which is inconvenient for operators. To address these drawbacks, we propose a ventilation and dust removal device for coal mine operations. Summary of the Invention

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a ventilation and dust removal device for coal mine operations.

[0006] To address the problems existing in the prior art, this utility model adopts the following technical solution: a ventilation and dust removal device for coal mine operations, comprising:

[0007] A ventilation structure, comprising a dust collection cylinder, an air inlet pipe fixedly installed on the surface of the dust collection cylinder, an exhaust pipe fixedly installed at the upper end of the dust collection cylinder, a fan fixedly installed at the upper end of the exhaust pipe, and a connecting pipe fixedly installed at the upper end of the fan;

[0008] A dust suppression structure is provided inside a dust suppression cylinder, comprising a spray pipe and a mesh plate fixedly installed on the inner wall of the dust suppression cylinder, a drain pipe fixedly installed at the lower end of the dust suppression cylinder, and a water supply assembly connected to the spray pipe.

[0009] The filtration structure includes a water storage tank, a clear water chamber and a wastewater chamber respectively disposed inside the water storage tank, and a mud and water filtration assembly disposed inside the water storage tank, wherein the mud and water filtration assembly is composed of a filter screen component and a cleaning component.

[0010] The filter assembly includes a drive roller, a first guide roller, and a second guide roller rotatably connected to the inner wall of the clean water chamber, a driven roller rotatably connected to the inner wall of the wastewater chamber, a filter belt disposed on the surfaces of the drive roller and the driven roller, and a motor fixedly installed on the front of the water storage tank for driving the drive roller to rotate.

[0011] Preferably, the water supply assembly includes a water pump fixedly installed on the inner wall of the clean water chamber, and a drain pipe fixedly installed at the outlet end of the water pump, with the other end of the drain pipe connected to the inlet end of the spray pipe.

[0012] Preferably, the cleaning component includes an ultrasonic generator fixedly installed on the inner wall of the sewage chamber, and a V-shaped scraper fixedly installed on the upper surface of the water storage tank.

[0013] Preferably, the lower surface of the V-shaped scraper overlaps with the surface of the filter belt, and the V-shaped scraper is positioned above the sewage chamber.

[0014] Preferably, a diffuser plate is fixedly installed at the end of the sewage pipe away from the dust collection cylinder. The diffuser plate has a cavity inside, and multiple drainage holes are equidistantly formed on the inner bottom wall of the cavity.

[0015] Preferably, the diffuser plate is positioned directly above the water cavity.

[0016] Preferably, the spray pipe is located directly above the mesh panel, and there are multiple mesh panels.

[0017] Preferably, a sewage pipe is fixedly installed on the right side of the water storage tank, and a valve is provided on the surface of the sewage pipe.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. By setting up a ventilation structure, a dust suppression structure, and a filtration structure, when dusty air enters the dust suppression cylinder through the air inlet pipe, the dust suppression structure sprays water droplets to suppress the dust. The wastewater after dust suppression enters the filtration structure and is filtered by the filter belt. When the filter belt below the sewage pipe becomes clogged, the drive motor can rotate the filter belt, thereby moving the filter belt without mud or water to directly below the sewage pipe. At this time, the filter belt with mud or water will enter the sewage chamber, and the ultrasonic generator will clean the mud or water attached to it. Compared with existing technologies, this device uses a dust suppression structure to suppress dust, and the mud or water after dust suppression is intercepted by the filter screen component. At the same time, the cleaning component cleans the filter belt. The cleaned filter belt can be reused, breaking the defect of the traditional need for frequent filter replacement and making it more convenient for operators.

[0020] 2. By setting up a diffuser plate, when the sewage pipe draws mud and water out of the dust collection cylinder, the mud and water will enter the cavity and be discharged through multiple drainage holes, thereby dispersing the water flow and avoiding the problem of excessive water flow impact causing damage to the filter belt. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an undue limitation. In the drawings:

[0022] Figure 1 This is a three-dimensional first-view schematic diagram of the present invention;

[0023] Figure 2 This is a three-dimensional second-view schematic diagram of the present invention;

[0024] Figure 3 This is a front sectional view of the filter structure of this utility model;

[0025] Figure 4 This is a front sectional view of the dust collection cylinder of this utility model;

[0026] Figure 5 This is a cross-sectional view of the diffuser plate of this utility model.

[0027] The components in the diagram are numbered as follows: 10 Dust suppression cylinder, 11 Air inlet pipe, 12 Exhaust pipe, 13 Fan, 14 Connecting pipe, 20 Spray pipe, 21 Mesh screen, 22 Sewage pipe, 30 Water storage tank, 31 Clean water chamber, 32 Sewage chamber, 40 Drive roller, 41 First guide roller, 42 Second guide roller, 43 Driven roller, 44 Filter belt, 45 Motor, 50 Water pump, 51 Drain pipe, 60 Ultrasonic generator, 61 V-shaped scraper, 70 Diffuser plate, 71 Cavity, 72 Leakage hole, 80 Sewage pipe. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0029] Please see Figure 1-5 This utility model provides a technical solution: a ventilation and dust removal device for coal mine operations, comprising: a ventilation structure, a dust reduction structure, and a filtration structure.

[0030] The ventilation structure includes a dust collection cylinder 10, an air inlet pipe 11 fixedly installed on the surface of the dust collection cylinder 10, an exhaust pipe 12 fixedly installed on the upper end of the dust collection cylinder 10, a fan 13 fixedly installed on the upper end of the exhaust pipe 12, and a connecting pipe 14 fixedly installed on the upper end of the fan 13. Driving the fan 13 can draw dust-laden air into the dust collection cylinder 10 along the air inlet pipe 11.

[0031] The dust suppression structure is set inside the dust suppression cylinder 10. It includes a spray pipe 20 and a screen plate 21 that are fixedly installed on the inner wall of the dust suppression cylinder 10, a sewage pipe 22 that is fixedly installed at the lower end of the dust suppression cylinder 10, and a water supply component that is connected to the spray pipe 20. The spray pipe 20 is located directly above the screen plate 21, and there are multiple screen plates 21.

[0032] When dust-laden air enters the dust collection cylinder 10, water droplets can be sprayed out using the spray pipe 20. After passing through the mesh plate 21, the water droplets will form a water film, which can be used to adsorb and reduce dust in the air. The wastewater after dust reduction will enter the sewage pipe 22, and the air after dust reduction will be discharged from the dust collection cylinder 10 along the exhaust pipe 12 and the connecting pipe 14.

[0033] The filtration structure includes a water storage tank 30, a clear water chamber 31 and a wastewater chamber 32 respectively disposed inside the water storage tank 30, and a mud and water filtration assembly disposed inside the water storage tank 30, wherein the mud and water filtration assembly is composed of a filter screen component and a cleaning component.

[0034] The water supply assembly includes a water pump 50 fixedly installed on the inner wall of the clear water chamber 31, and a drain pipe 51 fixedly installed at the outlet end of the water pump 50. The other end of the drain pipe 51 is connected to the inlet end of the spray pipe 20. Clear water is injected into both the clear water chamber 31 and the sewage chamber 32. After driving the water pump 50, the water in the clear water chamber 31 can be transported to the spray pipe 20 along the drain pipe 51, so that the clear water can be sprayed out using the spray pipe 20.

[0035] The filter screen component includes a drive roller 40, a first guide roller 41, and a second guide roller 42 rotatably connected to the inner wall of the clean water chamber 31, a driven roller 43 rotatably connected to the inner wall of the sewage chamber 32, a filter screen belt 44 disposed on the surfaces of the drive roller 40 and the driven roller 43, and a motor 45 fixedly installed on the front of the water storage tank 30 for driving the drive roller 40 to rotate. The first guide roller 41 and the second guide roller 42 can guide the filter screen belt 44.

[0036] A diffuser plate 70 is fixedly installed at the end of the sewage pipe 22 away from the dust collection cylinder 10. The diffuser plate 70 has a cavity 71 inside. Multiple drainage holes 72 are equidistantly opened on the inner bottom wall of the cavity 71. The diffuser plate 70 is located directly above the clean water chamber 31. The muddy water entering the sewage pipe 22 will enter the cavity 71 and be discharged through the multiple drainage holes 72, dripping onto the filter belt 44. This can disperse the water flow and avoid the problem of the filter belt 44 being damaged due to excessive water flow impact. At this time, the filter belt 44 will filter the muddy water, and the filtered water will enter the clean water chamber 31.

[0037] The cleaning components include an ultrasonic generator 60 fixedly installed on the inner wall of the sewage chamber 32, and a V-shaped scraper 61 fixedly installed on the upper surface of the water storage tank 30. The lower surface of the V-shaped scraper 61 overlaps with the surface of the filter belt 44, and the V-shaped scraper 61 is located above the sewage chamber 32. A sewage pipe 80 is fixedly installed on the right side of the water storage tank 30, and a valve is provided on the surface of the sewage pipe 80.

[0038] When the filter belt 44 located below the diffuser plate 70 becomes clogged, the drive motor 45 can rotate the filter belt 44, thereby moving the filter belt 44 without mud or water to directly below the diffuser plate 70. At this time, the filter belt 44 with mud or water will move to the right and pass through the V-shaped scraper 61. The V-shaped scraper 61 can scrape off the large amount of mud or water accumulated on the filter belt 44. Afterward, the filter belt 44 continues to move to the right and enters the sewage chamber 32, where the ultrasonic generator 60 cleans the mud or water attached to it. The cleaned filter belt 44 can be reused.

[0039] Compared with existing technologies, this device uses a dust-suppressing structure to suppress dust entering the dust-suppressing cylinder 10. The mud and water after dust suppression will be intercepted by the filter screen component, and at the same time, the cleaning component will clean the filter screen belt 44. This breaks the defect of the traditional method of frequently replacing filter elements and makes it more convenient for operators to use.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art based on the technical solution and concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coal mine operation ventilation dust removal device, characterized in that, The utility model relates to a dust faller, which comprises a ventilation structure, a dust fall structure, a filter structure and a water supply assembly. The ventilation structure comprises a dust fall cylinder (10), an air inlet pipe (11) fixedly installed on the surface of the dust fall cylinder (10), an air outlet pipe (12) fixedly installed on the upper end of the dust fall cylinder (10), a fan (13) fixedly installed on the upper end of the air outlet pipe (12), and a connecting pipe (14) fixedly installed on the upper end of the fan (13). The dust fall structure is arranged in the dust fall cylinder (10) and comprises a spray pipe (20) and a mesh plate (21) fixedly installed on the inner wall of the dust fall cylinder (10), a sewage pipe (22) fixedly installed on the lower end of the dust fall cylinder (10), and a water supply assembly in communication with the spray pipe (20). The filter structure comprises a water storage tank (30), a clean water cavity (31) and a sewage cavity (32) arranged in the water storage tank (30), and a mud water filtering assembly arranged in the water storage tank (30) and comprising a filter screen part and a cleaning part. The filter screen part comprises a driving roller (40), a first guide roller (41) and a second guide roller (42) rotatably connected to the inner wall of the clean water cavity (31), a driven roller (43) rotatably connected to the inner wall of the sewage cavity (32), a filter screen belt (44) arranged on the surface of the driving roller (40) and the driven roller (43), and a motor (45) fixedly installed on the front surface of the water storage tank (30) and used for driving the driving roller (40) to rotate.

2. The coal mine operation ventilation dust removal device according to claim 1, characterized in that: The water supply assembly comprises a water pump (50) fixedly installed on the inner wall of the clean water cavity (31), and a drain pipe (51) fixedly installed on the water outlet end of the water pump (50) and in communication with the water inlet end of the spray pipe (20).

3. The coal mine operation ventilation dust removal device according to claim 1, characterized in that: The cleaning part comprises an ultrasonic generator (60) fixedly installed on the inner wall of the sewage cavity (32), and a V-shaped scraper (61) fixedly installed on the upper surface of the water storage tank (30).

4. The coal mine operation ventilation dust removal device according to claim 3, characterized in that: The lower surface of the V-shaped scraper (61) is overlapped with the surface of the filter screen belt (44), and the V-shaped scraper (61) is above the sewage cavity (32).

5. The coal mine operation ventilation dust removal device according to claim 1, characterized in that: The sewage pipe (22) is fixedly installed with a diffusion plate (70) at the end away from the dust fall cylinder (10), the diffusion plate (70) is internally provided with a cavity (71), and a plurality of water leakage holes (72) are equidistantly arranged on the inner bottom wall of the cavity (71).

6. The coal mine operation ventilation dust removal device according to claim 5, characterized in that: The diffusion plate (70) is directly above the clean water cavity (31).

7. The coal mine operation ventilation dust removal device according to claim 1, characterized in that: The spray pipe (20) is directly above the mesh plate (21), and the number of the mesh plates (21) is multiple.

8. The coal mine operation ventilation dust removal device according to claim 1, characterized in that: The right side surface of the water storage tank (30) is fixedly installed with a sewage pipe (80), and the surface of the sewage pipe (80) is provided with a valve.

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