A ventilation dust filtering device for mines

Abstract

The present invention relates to the field of air filtering equipment, and in particular to a ventilation dust filtering device for mines, including a filter box, the filter box including a box body, a water tank is installed on one side of the top of the box body, a dust blocking plate is installed on one side of the box body, a filter bin is arranged on the other side of the box body, a side box is arranged on the side of the dust blocking plate close to the filter bin, an activated carbon block is arranged inside the side box, a uniformly distributed through-hole is vertically penetrated through the middle of the dust blocking plate, a side face of the dust blocking plate away from the side box is provided with fine fluff, a side of the side box away from the dust blocking plate is fixedly connected with a plurality of connecting pipes, an end of the connecting pipe away from the side box is fixedly connected with a water filter box group, a plurality of water filter boxes are arranged, and a water supply pipe is arranged on one side of each water filter box. The present invention can realize multi-faceted interception and filtration of dust in the air through multiple processes, thereby greatly improving the ventilation air quality.

Description

Technical Field

[0001] The invention relates to the field of air filtering equipment, and in particular to a ventilation dust filtering device for mines. Background Art

[0002] In tunnel construction such as industrial and mining, ventilation is an indispensable technical link. Under mechanized operation, ventilation equipment can supply fresh air to the construction site in the cave, create a good working environment, and ensure the health and safety of construction workers. However, since ventilation equipment generally introduces fresh air from the outside into the mine tunnel, dust in the external environment may enter the mine tunnel along with the air. Traditional dust filtering devices use water tanks to wash the air to intercept dust. However, dust and sand will accumulate inside, affecting the subsequent dust separation effect. For this, a regular cleaning plan is generally adopted. However, when encountering weather with a lot of dust outside, the dust content in the air is high, which often leads to premature blockage and affects the actual use of the equipment. Therefore, we propose a ventilation dust filtering device for mines to solve the above-mentioned problems. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a ventilation dust filtering device for mines.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is: a ventilation dust filter device for mines, including a filter box, the filter box includes a box body, a water tank is installed on one side of the top of the box body, a dust blocking plate is installed on one side of the box body, a filter bin is arranged on the other side of the box body, a side box is arranged on the side of the dust blocking plate close to the filter bin, an activated carbon block is arranged inside the side box, a uniformly distributed through hole is vertically penetrated in the middle of the dust blocking plate, and fine fluff is arranged on the end face of the dust blocking plate away from the side box. A plurality of connecting pipes are fixedly connected to one side of the side box away from the ash retaining plate, and a water filter box group is fixedly connected to one end of the connecting pipe away from the side box. There are multiple water filter boxes, each of which is provided with a liquid level gauge inside. A water supply pipe is provided on one side of the water filter box, and a solenoid valve is provided in the middle of the water supply pipe. The bottom of the water supply pipe passes through the bottom of one side of the water filter box, and the top of the water supply pipe is fixedly connected to the bottom of the water tank. A composite filter grating is provided on the side of the water filter box group away from the side box, and the composite filter grating is installed inside the filter bin.

[0005] Preferably, a water inlet pipe is fixedly connected to one side of the front of the water tank, and a water pump is connected to the front of the water tank through the water inlet pipe. Water outlet pipes are fixedly connected to both sides of one end of the water tank, and the end of the water outlet pipe away from the water tank passes through the top of the tank body. A top pipe is fixedly connected to the end of the water outlet pipe away from the water tank, and a uniformly distributed guide port is fixedly connected to one side of the bottom of the top pipe, and the top pipe is fixedly connected to the upper part of one side of the ash retaining plate.

[0006] Preferably, a top frame is provided in the upper inner part of the water filter box, an air duct is installed on the top of the top frame, a connecting pipe is fixedly connected to one side of the air duct, a side of the connecting pipe away from the air duct is fixedly connected to an air bin, the air bin is installed in the middle of the top of the top frame, and a second exhaust pipe is fixedly connected to the side of the air bin away from the connecting pipe.

[0007] Preferably, one end of the exhaust pipe 2 away from the air bin is fixedly connected to the exhaust pipe 1, the top of the exhaust pipe 1 is fixedly connected to the air guide pipe, the bottom of the exhaust pipe 1 is fixedly connected to the adjacent water filter box, and one end of the exhaust pipe on the water filter box is connected to the filter bin.

[0008] Preferably, a sand collecting rack is installed at the bottom of the water filter box, the top of the sand collecting rack is concave, the top of the sand collecting rack is provided with evenly distributed small through holes, the top of the sand collecting rack is covered with filter cloth, and the end of the exhaust pipe away from the water tank passes through the side wall of the sand collecting rack and is arranged in the lower part of the sand collecting rack.

[0009] Preferably, a vertical cylinder is fixedly connected to the middle part of the water filter box, the bottom of the vertical cylinder is provided with evenly distributed openings, the interior of the vertical cylinder is rotatably connected with a rotating shaft, the top of the rotating shaft passes through the top frame and the bottom of the air bin, and the rotating shaft is rotatably connected to the top frame and the air bin.

[0010] Preferably, the top of the outer periphery of the rotating shaft is fixedly connected with an impeller, and the impeller is arranged inside the air bin; the lower part of the outer periphery of the rotating shaft is fixedly connected with a mud conveying auger, and the mud conveying auger is arranged inside a vertical cylinder; mud guiding square tubes are fixedly connected to both sides of the upper part of the vertical cylinder.

[0011] Preferably, the ends of the mud guide square tubes away from the upright cylinder are fixedly connected to a mud guide box, the mud guide boxes are fixedly connected to the lower front and rear sides of the water filter box, the lower inner part of the mud guide box is provided with an inclined guide plate, and the lower end of the mud guide box away from the water filter box is fixedly connected to a guide frame.

[0012] Preferably, the end of the guide frame away from the mud guide box is fixedly connected to a sewage collecting bin, a sewage outlet is provided in the middle of the bottom end of the sewage collecting bin, the sewage collecting bin is fixedly connected to the middle of the bottom end of the box body, one side of the sewage collecting bin is fixedly connected to a sewage discharge pipe, and the end of the sewage discharge pipe away from the sewage collecting bin passes through one side of the bottom of the box body.

[0013] Preferably, an air inlet is installed in the middle of one end of the box body, an air outlet is installed in the middle of the other end of the box body, the filter box is connected to an air duct through the air outlet, and the filter box is connected to a ventilator through the air duct.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] When the present invention is in use, air will enter the filter separation box through the air inlet, and the air will encounter the dust blocking plate after entering, and the dust in the air can be intercepted by the dust blocking plate. The fine fluff arranged on the end face of the dust blocking plate can increase the dust interception effect, and by setting the dust blocking plate in an inclined state, part of the air will be guided upward, thereby prolonging the residence time of the air on one side of the dust blocking plate, thereby increasing the dust interception and interception amount of the dust blocking plate, and at the same time, setting the through port in a vertical state, combined with the inclination of the dust blocking plate, can increase the tortuosity of the air circulation channel to achieve sufficient dust interception.

[0016] The water inside the water tank can be discharged through the water outlet pipe, the water will enter the top pipe through the water outlet pipe, and be discharged through the guide port at the bottom. The water can be guided to the end face of the ash retaining plate through the guide port, and the fluff on the surface of the ash retaining plate can facilitate the water to flow through, forming a water curtain. The water curtain can effectively intercept dust in the air passing through the ash retaining plate, and at the same time, the continuous flow of water can take away the dust on the ash retaining plate, so that the dust and sewage will flow down and gather into the sewage collecting bin through the sewage pipe, and finally be discharged through the sewage outlet, thereby achieving preliminary interception of dust, which is beneficial to practical use.

[0017] After passing through the dust blocking plate, the air will enter the side box. The activated carbon block inside the side box can intercept the dust while effectively improving the air quality and eliminating the odor in the air. After passing through the side box, the air will enter the water filter box through the connecting pipe. Through multiple water filter boxes, the air can be fully washed with water, and the dust can be fully filtered, separated and purified. Finally, the composite filter grating can achieve the final filtration and separation of the air. Through multiple processes, the dust in the air can be intercepted and filtered in many aspects, thereby greatly improving the ventilation air quality.

[0018] After the air enters the water filter box, the water inside the water filter box will wash, filter and separate the air. After passing through the water, the air will reach the upper part of the water filter box and enter the air guide pipe. The air can be introduced into the air bin through the air guide pipe and the connecting pipe, and discharged through the exhaust pipe 2. The air will drive the impeller to rotate, and the impeller can drive the rotating shaft and the mud conveying auger to rotate. The dust and sand deposited at the bottom of the water filter box can be discharged through the mud conveying auger, and the discharged sand will be discharged through the mud guide square pipe, and under the guidance of the guide plate inside the mud guide box, it will enter the guide frame and introduce the mud and sand into the sewage collecting bin to avoid the continuous accumulation of mud and sand inside the water filter box and affect the subsequent filtering and separation effect. By continuously discharging mud and sand during air filtration and separation, it can be avoided that when a regular cleaning plan is adopted and there is a lot of dust from the outside, the dust content in the air is high, resulting in premature blockage.

[0019] By installing a sand collecting rack at the bottom of the water filter box, the sediment at the bottom of the water filter box can be guided, so that the sediment can be gathered to the opening at the bottom of the upright cylinder, which is convenient for the sediment to enter the upright cylinder from the opening. In actual use, the water level inside the water filter box can be monitored by the water level gauge inside the water filter box. When the water level inside the water filter box is low, the solenoid valve inside the water supply pipe will open, so that the water inside the water tank will enter the water filter box, so as to replenish the water of the water filter box, which is beneficial to continuous use. When the water enters the water filter box, the continuously entering water will rise and pass through the top of the sand collecting rack. When passing through, the water will drive the sediment on the top of the sand collecting rack, speed up the accumulation of sediment to the middle, which is beneficial to the continuous discharge of sediment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the combined state structure of a ventilation dust filtering device for mines according to the present invention;

[0021] Figure 2 It is a bottom view schematic diagram of the three-dimensional structure of a ventilation dust filtering device for mines according to the present invention;

[0022] Figure 3 This is a schematic diagram of the internal structure of a box of a ventilation dust filtering device for mines according to the present invention;

[0023] Figure 4 This is a second schematic diagram of the internal structure of a box of a ventilation dust filtering device for mines according to the present invention;

[0024] Figure 5 It is a schematic diagram of the local structure of the top pipe of a ventilation dust filtering device for mines according to the present invention;

[0025] Figure 6 It is a partial structural schematic diagram of a water filter box of a ventilation dust filter device for mines of the present invention;

[0026] Figure 7 This is a schematic diagram of the internal structure of a water filter box of a mine ventilation dust filter device according to the present invention;

[0027] Figure 8 This is a second schematic diagram of the internal structure of a water filter box of a ventilation dust filter device for mines according to the present invention;

[0028] Fig. 9 The present invention is a schematic diagram of the partial structure of the impeller and mud conveying auger of a ventilation dust filtering device for mines.

[0029] 1. Fan; 2. Air duct; 3. Filter box; 301. Air outlet; 302. Guide frame; 303. Air inlet; 304. Water outlet pipe; 305. Water tank; 306. Water inlet pipe; 307. Box; 308. Drain pipe; 309. Drain bin; 310. Drain outlet; 311. Composite filter grating; 312. Water filter box; 313. Water supply pipe; 314. Ash retaining plate; 315. Through port; 316. Side box ; 317, mud guide box; 318, top pipe; 319, diversion port; 320, exhaust pipe one; 321, exhaust pipe two; 322, air guide pipe; 323, air bin; 324, connecting pipe; 325, mud guide square pipe; 326, top frame; 327, opening; 328, guide plate; 329, upright cylinder; 330, connecting pipe; 331, sand collecting rack; 332, rotating shaft; 333, impeller; 334, mud conveying auger. DETAILED DESCRIPTION

[0030] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0031] like Figure 1-Figure 9 A ventilation dust filtering device for mines shown in the figure comprises a filter box 3, the filter box 3 comprises a box body 307, a water tank 305 is installed on one side of the top of the box body 307, a dust blocking plate 314 is installed on one side of the box body 307, a filter bin is arranged on the other side of the box body 307, a side box 316 is arranged on the side of the dust blocking plate 314 close to the filter bin, an activated carbon block is arranged inside the side box 316, a uniformly distributed through-hole 315 is vertically penetrated through the middle of the dust blocking plate 314, a side face of the dust blocking plate 314 away from the side box 316 is provided with fine fluff, a side of the side box 316 away from the dust blocking plate 314 is fixedly connected with a plurality of connecting pipes 330, an end of the connecting pipe 330 away from the side box 316 is fixedly connected with a group of water filter boxes 312, a plurality of water filter boxes 312 are arranged, and a liquid level gauge is arranged inside each water filter box 312. The meter is electrically connected to the solenoid valve, a water supply pipe 313 is provided on one side of the water filter box 312, a solenoid valve is provided in the middle of the water supply pipe 313, the bottom of the water supply pipe 313 passes through the bottom of one side of the water filter box 312, the top of the water supply pipe 313 is fixedly connected to the bottom of the water tank 305, a composite filter grating 311 is provided on the side of the water filter box 312 away from the side box 316, the composite filter grating 311 is installed inside the filter bin, a top frame 326 is provided on the upper part of the water filter box 312, an air guide pipe 322 is installed on the top of the top frame 326, one side of the air guide pipe 322 is fixedly connected to a connecting pipe 324, the connecting pipe 324 is fixedly connected to a gas bin 323 on the side away from the air guide pipe 322, the gas bin 323 is installed in the middle of the top of the top frame 326, and the side of the gas bin 323 away from the connecting pipe 324 is fixedly connected to an exhaust pipe 2 321;

[0032] Furthermore, in a specific implementation, the mine tunnel inside the mine can be ventilated through the ventilator 1. When fresh air from the outside is introduced into the mine tunnel, the incoming air can be filtered through the filter box 3 to avoid the situation where the airflow carries a large amount of dust when the outside air is extracted, thereby affecting the normal breathing of the miners. The air will enter the filter box 3 through the air inlet 303. After entering, the air will encounter the dust blocking plate 314. The dust in the air can be intercepted by the dust blocking plate 314. The fine hairs arranged on the end face of the dust blocking plate 314 can increase the dust interception effect. By setting the dust blocking plate 314 to an inclined state, part of the air will be guided upward, thereby prolonging the residence time of the air on one side of the dust blocking plate 314, thereby increasing the dust interception and blocking effect of the dust blocking plate 314. Intercepting, and setting the opening 315 to a vertical state, which cooperates with the inclination of the dust blocking plate 314 to increase the tortuosity of the air circulation channel to fully intercept dust, and the air will enter the side box 316 after passing through the dust blocking plate 314. The activated carbon block inside the side box 316 can effectively improve the air quality and eliminate odor in the air while intercepting the dust. The air will pass through the side box 316 and then enter the water filter box 312 through the connecting pipe 330. Through multiple water filter boxes 312, the air can be fully washed with water, and the dust can be fully filtered and purified. Finally, the composite filter grating 311 can achieve final filtration of the air. Through multiple processes, multi-faceted interception and filtration of dust in the air can be achieved, thereby greatly improving the ventilation air quality.

[0033] Among them, a water inlet pipe 306 is fixedly connected to one side of the front of the water tank 305, and a water pump is connected to the front of the water tank 305 through the water inlet pipe 306. The water outlet pipe 304 is fixedly connected to both sides of one end of the water tank 305. The end of the water outlet pipe 304 away from the water tank 305 passes through the top of the box body 307. The end of the water outlet pipe 304 away from the water tank 305 is fixedly connected to a top pipe 318, and a uniformly distributed flow guide port 319 is fixedly connected to one side of the bottom of the top pipe 318. The top pipe 318 is fixedly connected to the upper part of one side of the ash blocking plate 314. An air inlet 303 is installed in the middle of one end of the box body 307, and an air outlet 301 is installed in the middle of the other end of the box body 307. The filter box 3 is connected to the air duct 2 through the air outlet 301, and the filter box 3 is connected to the ventilator 1 through the air duct 2;

[0034] Furthermore, in a specific implementation, the water inside the water tank 305 can be discharged through the water outlet pipe 304, and the water will enter the top pipe 318 through the water outlet pipe 304 and be discharged through the guide port 319 at the bottom. The water can be guided to the end face of the ash retaining plate 314 through the guide port 319, and the fluff on the surface of the ash retaining plate 314 can facilitate the flow of water to form a water curtain. The water curtain can effectively intercept dust in the air passing through the ash retaining plate 314, and at the same time, the continuous flow of water can take away the dust on the ash retaining plate 314, so that the dust and sewage will flow down and gather into the sewage collecting bin 309 through the sewage pipe 308, and finally be discharged through the sewage outlet 310, thereby achieving preliminary interception of dust, which is beneficial to practical use.

[0035] Among them, the ends of the exhaust pipe 2 321 away from the air bin 323 are fixedly connected to the exhaust pipe 1 320, the tops of the exhaust pipe 1 320 are fixedly connected to the air guide pipe 322, the bottoms of the exhaust pipe 1 320 are fixedly connected to the adjacent water filter box 312, the ends of the exhaust pipe 1 320 on the terminal water filter box 312 are connected to the filter bin, the bottoms of the water filter boxes 312 are installed with sand collecting racks 331, the tops of the sand collecting racks 331 are concave, the tops of the sand collecting racks 331 are provided with evenly distributed small through holes, the tops of the sand collecting racks 331 are laid with filter cloth, the ends of the exhaust pipe 1 320 away from the water tank 305 penetrate the side walls of the sand collecting racks 331, and are arranged in the lower part of the sand collecting racks 331;

[0036] Furthermore, in a specific implementation, the sand collecting rack 331 installed at the bottom of the water filter box 312 can guide the sediment at the bottom of the water filter box 312, so that the sediment can be gathered at the opening 327 at the bottom of the upright tube 329, which is convenient for the sediment to enter the upright tube 329 from the opening 327. In actual use, the water level inside the water filter box 312 can be monitored by the water level gauge inside the water filter box 312. When the water level inside the water filter box 312 is low, the solenoid valve inside the water replenishment pipe 313 will be opened, so that the water inside the water tank 305 will enter the water filter box 312, so as to replenish the water of the water filter box 312, which is beneficial for continuous use. When the water enters the water filter box 312, the continuously entering water will rise, thereby passing through the top of the sand collecting rack 331. When the water passes through, it will drive the sediment on the top of the sand collecting rack 331, thereby accelerating the accumulation of sediment to the middle.

[0037] The middle part of the water filter box 312 is fixedly connected with a vertical cylinder 329, the bottom of the vertical cylinder 329 is provided with evenly distributed openings 327, the interior of the vertical cylinder 329 is rotatably connected with a rotating shaft 332, the top of the rotating shaft 332 penetrates the top frame 326 and the bottom of the air bin 323, the rotating shaft 332 is rotatably connected with the top frame 326 and the air bin 323, the top of the outer periphery of the rotating shaft 332 is fixedly connected with an impeller 333, the impeller 333 is arranged inside the air bin 323, the lower part of the outer periphery of the rotating shaft 332 is fixedly connected with a mud conveying auger 334, the mud conveying auger 334 is arranged inside the vertical cylinder 329, and the upper sides of the vertical cylinder 329 are fixedly connected with mud guiding square pipes 325;

[0038] Furthermore, in a specific implementation, after the air enters the water filter box 312, the water inside the water filter box 312 will wash and filter the air. After passing through the water, the air will reach the upper part of the water filter box 312 and enter the air guide pipe 322. The air can be introduced into the air bin 323 through the air guide pipe 322 and the connecting pipe 324, and discharged through the exhaust pipe 2 321. During this process, the air will drive the impeller 333 to rotate, and the impeller 333 can drive the rotating shaft 332 and the mud conveying auger 334 to rotate, and the dust and sand deposited at the bottom of the water filter box 312 can be discharged through the mud conveying auger 334.

[0039] Among them, the ends of the mud guide square tubes 325 away from the upright cylinder 329 are fixedly connected to the mud guide box 317, and the mud guide boxes 317 are fixedly connected to the lower parts of the front and rear sides of the water filter box 312. The lower parts of the mud guide boxes 317 are fixedly connected to the guide frame 302 at the lower parts of the ends of the mud guide boxes 317 away from the water filter box 312. The ends of the guide frames 302 away from the mud guide box 317 are fixedly connected to the sewage collecting bin 309. The middle part of the bottom end of the sewage collecting bin 309 is provided with a sewage outlet 310. The sewage collecting bin 309 is fixedly connected to the middle part of the bottom end of the box body 307. A sewage discharge pipe 308 is fixedly connected to one side of the sewage collecting bin 309. The end of the sewage discharge pipe 308 away from the sewage collecting bin 309 passes through one side of the bottom of the box body 307.

[0040] Furthermore, in the specific implementation, the exported sand and soil will be exported through the mud guide square tube 325 and enter the mud guide box 317. The mud and sand will enter the guide frame 302 under the guidance of the guide plate 328 inside the mud guide box 317. The guide frame 302 can guide the mud and sand into the sewage collecting bin 309 to achieve the export of the mud and sand, thereby preventing the mud and sand from continuing to accumulate inside the water filter box 312 and affecting the subsequent filtering effect. By continuously exporting the mud and sand during air filtration, it is possible to avoid the situation where when a regular cleaning plan is adopted and there is a lot of dust from the outside, the dust content in the air is high, resulting in premature blockage.

[0041] Working principle:

[0042] In actual use, the mine tunnel inside the mine can be ventilated through the fan 1. When fresh air from the outside is introduced into the mine tunnel, the incoming air can be filtered through the filter box 3 to avoid the airflow carrying a large amount of dust when the outside air is extracted, which affects the normal breathing of the miners. The air will enter the filter box 3 through the air inlet 303. After entering, the air will encounter the dust blocking plate 314. The dust in the air can be intercepted by the dust blocking plate 314. The fine fluff arranged on the end face of the dust blocking plate 314 can increase the dust interception effect. By setting the dust blocking plate 314 to an inclined state, part of the air will be guided upward, thereby extending the residence time of the air on one side of the dust blocking plate 314, thereby being able to The dust interception and interception amount of the dust blocking plate 314 are increased, and the through-port 315 is set to a vertical state. The coordination with the inclination of the dust blocking plate 314 can increase the tortuosity of the air circulation channel to achieve sufficient dust interception. At the same time, the water inside the water tank 305 can be discharged through the water outlet pipe 304, and the water will enter the top pipe 318 through the water outlet pipe 304 and be discharged through the guide port 319 at the bottom. The water can be guided to the end face of the dust blocking plate 314 through the guide port 319, and the fluff on the surface of the dust blocking plate 314 can facilitate the water to flow through, forming a water curtain. The dust in the air passing through the dust blocking plate 314 can be effectively intercepted by the water curtain, and the continuous flowing water can take away the dust on the dust blocking plate 314, so that the dust and sewage will The dust will flow down and be collected into the dust collection bin 309 through the sewage pipe 308, and finally be discharged through the sewage outlet 310, so as to realize the preliminary interception of dust, which is beneficial to practical use. After passing through the dust blocking plate 314, the air will enter the side box 316. The activated carbon block inside the side box 316 can effectively improve the air quality and eliminate the odor in the air while realizing the dust interception. After passing through the side box 316, the air will enter the water filter box 312 through the connecting pipe 330. Through multiple water filter boxes 312, the air can be fully washed with water, and the dust can be fully filtered and purified. Finally, the composite filter 311 can realize the final filtration of the air. Through multiple processes, multiple aspects of dust in the air can be realized. The air is intercepted and filtered, thereby greatly improving the ventilation air quality. After the air enters the water filter box 312, the water inside the water filter box 312 will wash and filter the air. After passing through the water, the air will reach the upper part of the water filter box 312 and enter the air guide pipe 322. The air can be introduced into the air warehouse 323 through the air guide pipe 322 and the connecting pipe 324, and discharged through the exhaust pipe 2 321. During this process, the air will drive the impeller 333 to rotate, and the impeller 333 can drive the rotating shaft 332 and the mud conveying auger 334 to rotate. The dust and sand deposited at the bottom of the water filter box 312 can be discharged through the mud conveying auger 334, and the discharged sand will be discharged through the mud guide square pipe 325 and enter the mud guide box 317.The silt will enter the guide frame 302 under the guidance of the guide plate 328 inside the silt guide box 317, and the silt can be guided into the dirt collecting bin 309 through the guide frame 302 to realize the export of the silt, and avoid the continuous accumulation of silt inside the water filter box 312 and affect the subsequent filtering effect. By continuously exporting the silt during air filtration, it is possible to avoid the situation where the dust content in the air is high and the clogging occurs early when a regular cleaning solution is adopted and there is a lot of dust outside. The sand collecting rack 331 installed at the bottom of the water filter box 312 can guide the silt at the bottom of the water filter box 312, so that the silt can be gathered at the opening 327 at the bottom of the vertical cylinder 329. It is convenient for the silt to enter the vertical cylinder 329 from the opening 327. In actual use, the water level inside the water filter box 312 can be monitored through the water level gauge inside the water filter box 312. When the water level inside the water filter box 312 is low, the solenoid valve inside the water supply pipe 313 will open, so that the water inside the water tank 305 will enter the water filter box 312, so as to replenish the water of the water filter box 312, which is conducive to continuous use. When the water enters the water filter box 312, the continuously entering water will rise, thereby passing through the top of the sand collecting rack 331. When the water passes through, it will drive the silt on the top of the sand collecting rack 331, speeding up the accumulation of silt to the middle, which is conducive to the continuous drainage of silt.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A ventilation dust filtering device for mines, comprising a filter box (3), characterized in that: The filter box (3) comprises a box body (307), a water tank (305) being installed on one side of the top of the box body (307), an ash retaining plate (314) being installed on one side of the box body (307), a filter bin being arranged on the other side of the box body (307), a side box (316) being arranged on the side of the ash retaining plate (314) close to the filter bin, an activated carbon block being arranged inside the side box (316), evenly distributed through openings (315) being vertically penetrated in the middle of the ash retaining plate (314), a side of the ash retaining plate (314) away from the side box (316) The end surface is provided with fine fluff, a side of the side box (316) away from the dust blocking plate (314) is fixedly connected to a plurality of connecting pipes (330), one end of the connecting pipe (330) away from the side box (316) is fixedly connected to a water filter box (312) group, a plurality of water filter boxes (312) are provided, each of the water filter boxes (312) is provided with a liquid level gauge, a water supply pipe (313) is provided on one side of the water filter box (312), a solenoid valve is provided in the middle of the water supply pipe (313), and the bottom of the water supply pipe (313) passes through the water filter box ( The water supply pipe (313) is fixedly connected to the bottom of one side of the water tank (305), and the top of the water supply pipe (313) is fixedly connected to the bottom of the water tank (305). A composite filter grating (311) is provided on the side of the water filter box (312) group away from the side box (316). The composite filter grating (311) is installed inside the filter bin. A vertical cylinder (329) is fixedly connected to the middle part of the water filter box (312). The bottom of the vertical cylinder (329) is provided with evenly distributed openings (327). A rotating shaft (332) is rotatably connected to the inside of the vertical cylinder (329). The top of the rotating shaft (332) is connected to the bottom of the vertical cylinder (329). The rotating shafts (332) are rotatably connected to the top frame (326) and the air bin (323); the top of the outer periphery of the rotating shaft (332) is fixedly connected to an impeller (333); the impeller (333) is arranged inside the air bin (323); the lower part of the outer periphery of the rotating shaft (332) is fixedly connected to a mud conveying auger (334); the mud conveying auger (334) is arranged inside a vertical cylinder (329); and mud guiding square pipes (325) are fixedly connected to both sides of the upper part of the vertical cylinder (329).

2. A mine ventilation dust filter device according to claim 1, characterized in that: A water inlet pipe (306) is fixedly connected to one side of the front of the water tank (305), and a water pump is connected to the front of the water tank (305) through the water inlet pipe (306). Water outlet pipes (304) are fixedly connected to both sides of one end of the water tank (305). One end of the water outlet pipe (304) away from the water tank (305) passes through the top of the box body (307). One end of the water outlet pipe (304) away from the water tank (305) is fixedly connected to a top pipe (318). One side of the bottom of the top pipe (318) is fixedly connected to evenly distributed flow guide ports (319). The top pipe (318) is fixedly connected to an upper portion of one side of the ash retaining plate (314).

3. A mine ventilation dust filter device according to claim 1, characterized in that: A top frame (326) is provided at the upper inner portion of the water filter box (312); an air guide pipe (322) is installed at the top of the top frame (326); a connecting pipe (324) is fixedly connected to one side of the air guide pipe (322); a gas chamber (323) is fixedly connected to the side of the connecting pipe (324) away from the air guide pipe (322); the gas chamber (323) is installed at the middle of the top end of the top frame (326); and a second exhaust pipe (321) is fixedly connected to the side of the gas chamber (323) away from the connecting pipe (324).

4. A mine ventilation dust filter device according to claim 3, characterized in that: One end of the exhaust pipe 2 (321) away from the air bin (323) is fixedly connected to the exhaust pipe 1 (320), the top of the exhaust pipe 1 (320) is fixedly connected to the air guide pipe (322), the bottom of the exhaust pipe 1 (320) is fixedly connected to the adjacent water filter box (312), and the end of the exhaust pipe 1 (320) on the water filter box (312) is connected to the filter bin.

5. A mine ventilation dust filtering device according to claim 4, characterized in that: A sand collecting rack (331) is installed at the bottom of the water filter box (312); the top of the sand collecting rack (331) is concave; the top of the sand collecting rack (331) is provided with evenly distributed small through holes; a filter cloth is laid on the top of the sand collecting rack (331); and the end of the exhaust pipe (320) away from the water tank (305) passes through the side wall of the sand collecting rack (331) and is provided at the lower part of the sand collecting rack (331).

6. A mine ventilation dust filtering device according to claim 1, characterized in that: One end of the mud guide square tube (325) away from the upright tube (329) is fixedly connected to a mud guide box (317); the mud guide box (317) is fixedly connected to the lower front and rear sides of the water filter box (312); an inclined guide plate (328) is provided in the lower inner part of the mud guide box (317); and the lower end of the mud guide box (317) away from the water filter box (312) is fixedly connected to a flow guide frame (302).

7. A mine ventilation dust filtering device according to claim 6, characterized in that: One end of the flow guide frame (302) away from the mud guide box (317) is fixedly connected to a dirt collecting bin (309); a dirt discharge port (310) is provided in the middle of the bottom end of the dirt collecting bin (309); the dirt collecting bin (309) is fixedly connected to the middle of the bottom end of the box body (307); one side of the dirt collecting bin (309) is fixedly connected to a dirt discharge pipe (308); one end of the dirt discharge pipe (308) away from the dirt collecting bin (309) passes through one side of the bottom of the box body (307).

8. A mine ventilation dust filtering device according to claim 1, characterized in that: An air inlet (303) is installed in the middle of one end of the box body (307), and an air outlet (301) is installed in the middle of the other end of the box body (307); the filter box (3) is connected to an air duct (2) via the air outlet (301), and the filter box (3) is connected to a ventilator (1) via the air duct (2).

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