Ventilation system and method with dust treatment function for mining operation

Abstract

The ventilation system comprises a base, a support is installed on the base, an air exhaust mechanism and an air inlet mechanism are installed on the top of the support, a connecting pipe is fixedly connected to the right side of the air exhaust mechanism, a flow choking inclined guide plate is fixedly connected to the inner bottom wall of the connecting pipe, and a dust removal mechanism is installed on the inner bottom wall of the flow choking inclined guide plate. The air inlet mechanism is movably installed at the right end of the connecting pipe, and the base is provided with an ash removing assembly used for removing ash at the air inlet end of the air inlet mechanism. According to the invention, a double-filtering structure design is adopted, switching is flexible, normal operation can still be maintained without shutdown during replacement, and meanwhile, a distributed air inlet end part is dynamically designed and continuously cleaned, so that uniformity and comprehensiveness of air inlet are ensured, and the air exhaust performance is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mining ventilation, and more particularly to a ventilation system and method for mining operations with a dust handling function. Background Art

[0002] Mine ventilation system refers to the general term for mine ventilation methods and ventilation networks. Ventilation methods are divided into central, diagonal, partitioned and mixed types. Mine ventilation methods refer to the working methods of the main fans to supply air to the mine. According to the installation positions of the main fans, they are divided into three types: extraction, pressure and mixed. The ventilation network is mainly divided into ventilation system network diagrams and their basic forms. Ventilation systems include fan control, CO sensors, traffic status detection, fire alarm control and TC control, as well as the basic tasks, basic requirements, selection principles and management of ventilation systems.

[0003] Among them, exhaust ventilation is to install the fan near the return air wellhead. After the fan is working, part of the air in the wind tunnel is extracted, making the air pressure in the well lower than the atmospheric pressure on the ground, forcing the ground air to enter the well from the air inlet wellhead and then be discharged by the return air, so that fresh air can be input into the mine, increasing the oxygen concentration to dilute and remove toxic and harmful gases and dust in the mine.

[0004] When the equipment is extracting the air in the well, the internal dust will continue to accumulate on the filter structure of the equipment, and it needs to be replaced after a certain period of operation. However, when replacing the filter structure, the equipment needs to be shut down, which is time-consuming and will stop the air flow in the well, making it impossible to operate continuously. In addition, in order to ensure that the extraction is more uniform and comprehensive, a decentralized air intake port is designed to ensure comprehensive extraction of internal gas from low to high. This makes it difficult to clean the air intake ports at higher positions after dust accumulates, and it is difficult to clean them in real time, making it difficult to ensure the uniformity of extraction, and the use effect is not good. Summary of the invention

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a ventilation system and method for mining operations with a dust treatment function to solve the background technical problems.

[0006] To achieve the above object, the present invention adopts the following technical solution: A ventilation system for mining operations with a dust handling function comprises a base, a bracket is installed on the base, an exhaust mechanism and an air intake mechanism are installed on the top of the bracket, a connecting pipe is fixedly connected to the right side of the exhaust mechanism, a baffle inclined guide plate is fixedly connected to the inner bottom wall of the connecting pipe, the air intake mechanism is movably installed to the right end of the connecting pipe, and a dust cleaning component for the air intake end of the air intake mechanism is installed on the base.

[0007] The exhaust mechanism includes a shell, an axial flow fan, a driving motor, a rotating part, a semicircular partition and two semicircular filter covers. The bottom of the shell is fixedly mounted on the bracket, the rotating part is rotatably mounted to the interior of the shell, the output end of the driving motor extends to the interior of the shell and is connected to the rotating part through a coupling, the axial flow fan is fixedly mounted to the back of the shell, the outer side of the semicircular partition is fixedly connected to the interior of the shell, the front side of the semicircular partition is in contact with the rotating part, the two semicircular filter covers are symmetrically clamped to the outer side of the rotating part, and a wind speed sensor is fixedly installed inside the shell.

[0008] The air intake mechanism includes a hollow rotating disk, a driving member and an annularly distributed air intake pipe, the left end of the hollow rotating disk is rotatably connected to the right end of the connecting pipe, the driving member is installed between the hollow rotating disk and the bracket, the left end of the air intake pipe is connected and fixed to the inside of the hollow rotating disk, and the end of the air intake pipe away from the hollow rotating disk is inclined outwardly in an expanding manner; The cleaning assembly includes a water pool, an arc-shaped brush plate, a circulation filter and an arc-shaped guide ring. The bottom of the water pool is fixedly mounted on a base, the outer side of the arc-shaped brush plate is fixedly connected to the interior of the water pool, the circulation filter is fixedly mounted on the base and is circulated with the water pool, the air intake pipe rotates with the hollow rotating disk and contacts and cooperates with the left side of the arc-shaped brush plate inside the water pool, the arc-shaped guide ring is fixedly mounted to the left side of the arc-shaped brush plate, baffles are provided on the inner side of the arc-shaped brush plate and at the gap between the outer side and the water pool, and guide holes are provided on the baffles at the gap between the arc-shaped brush plate and the water pool.

[0009] As a further description of the above scheme: the rotating part includes a shaft, a side disc, a side ring, and two scrapers, one end of the shaft passes through and is fixedly connected to one side of the side disc, the other end of the shaft is fixedly connected to the center of the side ring, the output end of the drive motor is fixedly connected to the end of the shaft through a coupling, the two scrapers are symmetrically fixedly connected between the side disc and the side ring, the two semicircular filter covers are respectively clamped to the two sides of the two scrapers, and the opposite sides of the two scrapers are fixedly connected to the shaft.

[0010] As a further description of the above scheme: the inside of the shell is fixedly connected to a limit ring, the side of the side plate away from the side ring is in rotational contact with one side of the limit ring, the outside of the shell is hinged with an opening and closing door, and the top of the opening and closing door is fixed to the shell by bolts.

[0011] As a further description of the above scheme: the driving member includes a reduction motor, a gear and a gear ring, the bottom of the reduction motor is fixedly connected to the bracket, the output end of the reduction motor is fixedly connected to the gear through a coupling, the inside of the gear ring is fixedly connected to the outside of the left port of the hollow rotating disk, and the outside of the gear ring is meshed with the gear.

[0012] The circulation filter element includes a circulation box, a circulation pump and a filter core plate. The left side of the circulation box is connected and fixed to the water pool through a pipeline. The circulation pump is fixedly installed on the top of the circulation box. The circulation pump uses a pipeline to connect the circulation box and the water pool. The filter core plate is fixedly installed inside the circulation box.

[0013] As a further description of the above scheme: a filter screen is sleeved on one end of the intake pipe away from the hollow rotating disk, and one end of two springs is fixedly connected to the inside of the filter screen, and the other ends of the two springs are fixedly connected to the end of the intake pipe; an oblique ring groove cooperating with the arc guide ring is provided on the outside of the filter screen, and a through hole distributed in an annular manner is provided on the outside of the intake pipe; a semicircular water storage box corresponding to the intake pipe is fixedly connected to the inside of the hollow rotating disk, and the filter screen contacts and cooperates with the arc brush plate as the hollow rotating disk rotates; when the oblique ring groove is contacted and squeezed into by the arc guide ring as the filter screen moves, the filter screen as a whole moves horizontally along the outside of the intake pipe so that the through hole leaks out for drainage; when the oblique ring groove separates from the arc guide ring as the filter screen moves, the two springs pull the filter screen to reset so that the through hole is closed for normal intake filtration.

[0014] A support wheel is installed inside the water pool, and an annular groove for rolling cooperation with the support wheel is opened on the outer side of the hollow rotating disk; a step ladder is fixedly installed on the left side of the bracket, and the step ladder extends to the lower left side of the shell.

[0015] The present invention also proposes a method for ventilation and dust removal using a mining operation ventilation system with a dust treatment function, comprising the following steps: S1. First, start the axial flow fan to draw negative pressure inside the shell, then suck air through the connecting pipe and the air intake pipe on the air intake mechanism, the air enters the hollow rotating disk and then enters the connecting pipe into the shell, then the air is filtered again through the semicircular filter cover facing the connecting pipe and enters the inside of the rotating part, and then is drawn into the ventilation duct by the axial flow fan; S2, then start the driving member to drive the hollow rotating disk to rotate, so as to drive the air intake pipe to revolve around the axis of the hollow rotating disk, and the air intake pipes alternately enter the interior of the water pool in turn, so that the filter screen enters the interior of the water pool and contacts the arc-shaped brush plate to be scrubbed to clean the large particles of debris attached to the surface. At the same time, due to the inclined setting of the air intake pipe, the water inside will naturally flow out with the rotation, and at the same time, part of the water flow will be intercepted by the semicircular water storage box. As the hollow rotating disk rotates to a high position, the angle of the semicircular water storage box gradually tilts until the internal water flow is splashed downward from the top to settle the intake air, and the settled water flow containing dust flows to the interior of the bottom air intake pipe, and the bottom air intake pipe rotates under the water surface, and the arc-shaped guide ring contacts and squeezes into the oblique ring groove outside the filter screen, so that the filter screen stretches the spring to the right and moves horizontally, leaking out of the through hole, so that the internal sewage is discharged smoothly; S3, then start the circulation pump to pump out the water in the circulation box and inject it into the pool, so that the water flushes the large particles on the arc-shaped brush plate and continuously flows back to the inside of the circulation box, and is filtered by the filter core plate to continuously perform the flushing cycle. Under the cooperation of the baffle and the diversion hole, the circulation pump injects the filtered water from the top to the left side of the baffle, and then the settled sewage is pumped to the right side of the baffle through the diversion hole and finally the mixed sewage is pumped out for filtration, so that the water flow in the pool forms a cycle and the sewage is continuously discharged outward; S4. Then when the wind speed sensor detects that the internal wind speed has decreased, it is determined that the dust accumulated on the initially working semicircular filter cover has reached the replacement level. At this time, the drive motor is started to drive the rotating part to rotate 180 degrees. At this time, the initially working semicircular filter cover rotates to the left side close to the opening and closing door, and the other semicircular filter cover is switched to the working position to ensure the normal operation of the equipment. Then the opening and closing door is opened to disassemble and replace the semicircular filter cover. After completion, the opening and closing door is closed and the wheel is switched for the next replacement.

[0016] Compared with the prior art, the advantages of the present invention are: (1) This scheme starts the driving member to drive the hollow rotating disk to rotate, thereby driving the intake pipe to revolve around the axis of the hollow rotating disk. The intake pipes enter the interior of the water pool alternately in turn, so that the filter screen enters the interior of the water pool and contacts the arc-shaped brush plate to be scrubbed to clean the large particles of debris attached to the surface, so as to keep the filter screens on each intake pipe clean, ensure the cleanliness of the intake port, improve the uniformity and comprehensiveness of the intake, and more thoroughly adsorb the air in the well space.

[0017] (2) This solution adopts a dual-filter structure design and uses a starting drive motor to drive the rotating part to rotate 180 degrees, so that the semicircular filter cover in the working position is switched with the other semicircular filter cover in the non-working state. Then, the shell is opened to disassemble and replace the semicircular filter cover filled with dust, thereby ensuring normal operation of the equipment during replacement.

[0018] (3) This solution uses a continuously rotating hollow rotating disk to allow the air intake pipe to continuously enter the water tank in sequence. During the rotation, some water mixed air will be sucked into the pipe, increasing the humidity of the air mixed with harmful and flammable gases inside, thereby improving the safety of equipment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front cross-sectional structural schematic diagram of the present invention; Figure 2 for Figure 1 A schematic diagram of the enlarged structure of the middle A part; Figure 3 It is a schematic diagram of the three-dimensional structure of the hollow rotating disk of the present invention; Figure 4It is a schematic diagram of the side cross-sectional structure of the air extraction mechanism of the present invention; Figure 5 It is a schematic diagram of a three-dimensional cross-sectional structure of a rotating member of the present invention; Figure 6 It is a schematic diagram of the side cross-sectional structure of the water pool of the present invention; Figure 7 It is a partial side cross-sectional structural schematic diagram of the present invention; Figure 8 It is a schematic diagram of a top view of a cross-sectional structure of the air extraction structure of the present invention; Fig. 9 It is a schematic diagram of the side cross-sectional structure of the semicircular water storage box of the present invention.

[0020] Description of the numbers in the figure: 1. Base; 2. Bracket; 21. Step; 3. Exhaust mechanism; 31. Shell; 32. Axial fan; 33. Drive motor; 34. Rotating member; 341. Shaft; 342. Side plate; 343. Side ring; 344. Scraper; 35. Semicircular partition; 36. Semicircular filter cover; 37. Wind speed sensor; 4. Intake mechanism; 41. Hollow rotating plate; 411. Annular groove; 42. Driving member; 421. Speed ​​reduction motor; 422. Gear; 423. Gear ring ; 43. Inlet pipe; 431. Filter screen; 432. Spring; 433. Oblique ring groove; 434. Through hole; 435. Semicircular water storage box; 5. Connecting pipe; 6. Cleaning assembly; 61. Water tank; 611. Support wheel; 62. Arc-shaped brush plate; 63. Circulation filter element; 631. Circulation box; 632. Circulation pump; 633. Filter core plate; 64. Arc-shaped guide ring; 65. Baffle; 66. Diversion hole; 7. Limiting ring; 8. Opening and closing door; 9. Flow-blocking oblique guide plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] See also Figure 1-9 In the present invention, a ventilation system for mining operation with a dust treatment function comprises a base 1, a bracket 2 is installed on the base 1, an exhaust mechanism 3 and an air intake mechanism 4 are installed on the top of the bracket 2, a connecting pipe 5 is fixedly connected to the right side of the exhaust mechanism 3, a flow-blocking inclined guide plate 9 is fixedly connected to the inner bottom wall of the connecting pipe 5, the air intake mechanism 4 is movably installed to the right end of the connecting pipe 5, and a dust cleaning component 6 for the air intake end of the air intake mechanism 4 is installed on the base 1; The exhaust mechanism 3 includes a shell 31, an axial flow fan 32, a driving motor 33, a rotating member 34, a semicircular partition 35 and two semicircular filter covers 36. The bottom of the shell 31 is fixedly mounted on the bracket 2, the rotating member 34 is rotatably mounted to the inside of the shell 31, the output end of the driving motor 33 extends to the inside of the shell 31 and is connected to the rotating member 34 through a coupling, the axial flow fan 32 is fixedly mounted to the back of the shell 31, the outer side of the semicircular partition 35 is fixedly connected to the inside of the shell 31, the front side of the semicircular partition 35 is in contact with the rotating member 34, the two semicircular filter covers 36 are symmetrically snapped onto the outer side of the rotating member 34, and a wind speed sensor 37 is fixedly installed inside the shell 31.

[0023] The air intake mechanism 4 includes a hollow rotating disk 41, a driving member 42 and an annularly distributed air intake pipe 43. The left end of the hollow rotating disk 41 is rotatably connected to the right end of the connecting pipe 5. The driving member 42 is installed between the hollow rotating disk 41 and the bracket 2. The left end of the air intake pipe 43 is connected and fixed to the interior of the hollow rotating disk 41. The end of the air intake pipe 43 away from the hollow rotating disk 41 is inclined to expand outward.

[0024] The cleaning assembly 6 includes a water pool 61, an arc-shaped brush plate 62, a circulation filter 63 and an arc-shaped guide ring 64. The bottom of the water pool 61 is fixedly mounted on the base 1, the outer side of the arc-shaped brush plate 62 is fixedly connected to the interior of the water pool 61, the circulation filter 63 is fixedly mounted on the base 1 and is circulated and connected with the water pool 61, the air intake pipe 43 rotates with the hollow rotating disk 41 and contacts and cooperates with the left side of the arc-shaped brush plate 62 inside the water pool 61, the arc-shaped guide ring 64 is fixedly mounted on the left side of the arc-shaped brush plate 62, and baffles 65 are provided on the inner side of the arc-shaped brush plate 62 and the gap between the outer side thereof and the water pool 61, and guide holes 66 are opened on the baffles 65 at the gap between the arc-shaped brush plate 62 and the water pool 61.

[0025] In the present invention, the interior of the shell 31 is evacuated to a negative pressure by starting the axial flow fan 32, and then air is sucked in through the connecting pipe 5 and the air intake pipe 43 on the air intake mechanism 4, the air enters the hollow rotating disk 41 and then enters the connecting pipe 5 to enter the shell 31, and then the air passes through the semicircular filter cover 36 facing the connecting pipe 5 and is filtered again before entering the interior of the rotating member 34, and then is drawn into the ventilation duct by the axial flow fan 32, and then the driving member 42 is started to drive the hollow rotating disk 41 to rotate, so as to drive the air intake pipe 43 to revolve around the axis of the hollow rotating disk 41, and the air intake pipe 43 enters the interior of the water pool 61 alternately in turn, so that the filter screen 431 enters the interior of the water pool 61 and contacts the arc-shaped brush plate 62 to be brushed to clean the large particles of debris attached to the surface, so as to keep the filter screen 431 on each air intake pipe 43 clean, and ensure the cleanliness of the air intake port.

[0026] When it is necessary to replace the filter structure, first start the drive motor 33 to drive the rotating part 34 to rotate one hundred and eighty degrees, so that the semicircular filter cover 36 in the working position is switched with the other semicircular filter cover 36 in the non-working state, and then open the shell 31 to disassemble and replace the semicircular filter cover 36 that is full of dust. At this time, the rotating part 34 divides the space between the two semicircular filter covers 36 into two independent spaces. During replacement, the internal airflow flows normally, the external replacement area is not connected to the interior, and the semicircular partition plate 35 in the direction of the exhaust side of the left axial flow fan 32 closes the port on the side where the semicircular filter cover 36 on the replacement side is located, so as to achieve complete separation of the area where the replacement is located from the internal airflow flow area, thereby ensuring the continuous operation of the equipment.

[0027] At the same time, as the air intake pipe 43 rotates, the water inside will flow out naturally, and part of the water flow will be intercepted by the semicircular water storage box 435. As the hollow rotating disk 41 rotates to a high position, the angle of the semicircular water storage box 435 gradually tilts until the water flow inside is splashed downward from the top to settle the intake air, and the settled water flow containing dust flows to the inside of the bottom air intake pipe 43. As the bottom air intake pipe 43 rotates under the water surface, the arc guide ring 64 contacts and squeezes into the oblique ring groove 433 on the outside of the filter screen 431, causing the filter screen 431 to stretch the spring 432 to the right and move horizontally, leaking out of the through hole 434, so that the internal sewage can be discharged smoothly, thereby achieving continuous flushing, settling and sewage discharge.

[0028] Thereby, the device is designed with a dual filter structure, which is flexible to switch. When changing, it can still maintain normal operation without shutting down. At the same time, a dynamic design is adopted for the decentralized air intake end, which is continuously cleaned to ensure the uniformity and comprehensiveness of the air intake and improve the air extraction performance. This solves the problem in the prior art that when replacing the filter structure, the equipment needs to be shut down, which is time-consuming and will stop the air flow in the well, making it impossible to operate continuously. In addition, in order to ensure that the extraction is relatively uniform and comprehensive, decentralized air intake ports are designed to ensure comprehensive extraction of internal gas from low to high. This results in the air intake ports at higher positions being difficult to clean after dust accumulates, and difficult to clean in real time, making it difficult to ensure the uniformity of extraction and resulting in poor use effect.

[0029] See also Figure 1 , Figure 4 , Figure 5 and Figure 8, wherein: the rotating member 34 includes a shaft rod 341, a side disc 342, a side ring 343, and two scrapers 344, one end of the shaft rod 341 passes through and is fixedly connected to one side of the side disc 342, the other end of the shaft rod 341 is fixedly connected to the center of the side ring 343, the output end of the drive motor 33 is fixedly connected to the end of the shaft rod 341 through a coupling, the two scrapers 344 are symmetrically fixedly connected between the side disc 342 and the side ring 343, the two semicircular filter covers 36 are respectively clamped to the two sides of the two scrapers 344, and the opposite sides of the two scrapers 344 are fixedly connected to the shaft rod 341.

[0030] In the present invention, the side disc 342 and the side ring 343 are connected as a whole through the shaft 341. The side ring 343 is located on one side of the axial flow fan 32 as a flow path for the gas after entering. That is, the gas enters the shell 31 through the connecting pipe 5 and enters the space between the side disc 342 and the side ring 343 through the semicircular filter cover 36. The outer sides of the two scrapers 344 rotate with the inside of the shell 31 to scrape the dust accumulated inside and scrape it out to avoid dust accumulation inside the shell 31. At the same time, the space between the two semicircular filter covers 36 is divided, and the semicircular partition plate 35 on the air outlet side is used to isolate the semicircular filter cover 36 on the replacement side to ensure normal filtering operation of the equipment.

[0031] See also Figure 4 and Figure 8 , wherein: the interior of the housing 31 is fixedly connected to a limiting ring 7 , and the side of the side disc 342 away from the side ring 343 is in rotational contact with one side of the limiting ring 7 .

[0032] In the present invention, the limiting ring 7 cooperates with the semicircular partition 35 on the other side to make the overall structure composed of the side plate 342 and the side ring 343 rotate more stably.

[0033] See also Figure 1 , wherein: an opening and closing door 8 is hinged on the outer side of the shell 31, and the top of the opening and closing door 8 is connected and fixed to the shell 31 by bolts.

[0034] In the present invention, the housing 31 is opened conveniently by opening and closing the door 8 to carry out the replacement operation of the semicircular filter cover 36 .

[0035] See also Figure 1 , wherein: the driving member 42 includes a reduction motor 421, a gear 422 and a gear ring 423, the bottom of the reduction motor 421 is fixedly connected to the bracket 2, the output end of the reduction motor 421 is fixedly connected to the gear 422 through a coupling, the inside of the gear ring 423 is fixedly connected to the outside of the left port of the hollow rotating disk 41, and the outside of the gear ring 423 is meshed with the gear 422.

[0036] In the present invention, the gear 422 is driven to rotate by starting the reduction motor 421 to drive the gear ring 423 to rotate, thereby driving the hollow rotating disk 41 to rotate, so as to drive the air intake pipe 43 to continuously enter the interior of the pool 61 for cleaning.

[0037] See also Figure 1 , Figure 6 and Figure 7 , wherein: the circulation filter element 63 includes a circulation box 631, a circulation pump 632 and a filter core plate 633. The left side of the circulation box 631 is connected and fixed to the water pool 61 through a pipeline. The circulation pump 632 is fixedly installed on the top of the circulation box 631. The circulation pump 632 uses a pipeline to connect the circulation box 631 and the water pool 61. The filter core plate 633 is fixedly installed inside the circulation box 631.

[0038] In the present invention, the circulation pump 632 is started to pump out the water in the circulation box 631 and inject it into the water pool 61, so that the water in the water pool 61 flows back to the circulation box 631, and the filter core plate 633 circulates and filters the water flow to ensure the cleaning effect.

[0039] See also Figure 1 , Figure 3 and Figure 7 , wherein: a filter screen 431 is sleeved on one end of the air inlet pipe 43 away from the hollow rotating disk 41, one end of two springs 432 is fixedly connected to the inside of the filter screen 431, and the other ends of the two springs 432 are fixedly connected to the end of the air inlet pipe 43, an oblique ring groove 433 matching the arc guide ring 64 is provided on the outside of the filter screen 431, and an annular through hole 434 is provided on the outside of the air inlet pipe 43, and a semicircular water storage box corresponding to the air inlet pipe 43 is fixedly connected to the inside of the hollow rotating disk 41 435, the filter screen 431 is in contact with the arc-shaped brush plate 62 as the hollow rotating disk 41 rotates. When the oblique ring groove 433 is contacted and squeezed into the arc-shaped guide ring 64 as the filter screen 431 moves, the filter screen 431 moves horizontally along the outer side of the air inlet pipe 43 as a whole, so that the through hole 434 leaks out for sewage discharge. When the oblique ring groove 433 is separated from the arc-shaped guide ring 64 as the filter screen 431 moves, the two springs 432 pull the filter screen 431 to reset and close the through hole 434 for normal air intake filtration.

[0040] In the present invention, the large particles of debris in the air inside the well are filtered through the filter screen 431 to achieve preliminary filtration, and the filter screen 431 enters the water pool 61 and is cleaned by the arc-shaped brush plate 62. At the same time, when the air intake pipe 43 rotates, a small amount of water will be sucked into the inside of the connecting pipe 5, and the water is prevented from flowing into the inside of the shell 31 under the action of the flow-blocking inclined guide plate 9. At the same time, the arc-shaped guide ring 64 is used in conjunction with the oblique ring groove 433, so that the filter screen 431 rotates, and while contacting the arc-shaped brush plate 62 for cleaning, the filter screen 431 is pushed to discharge the internal sewage along the air intake pipe 43 into the water pool 61, and the air entering the connecting pipe 5 is humidified to increase the air humidity to increase safety.

[0041] See also Figure 7 , wherein: a support wheel 611 is installed inside the water pool 61, and an annular groove 411 is opened on the outer side of the hollow rotating disk 41 to roll with the support wheel 611. The hollow rotating disk 41 is rolled and supported by the support wheel 611 and the annular groove 411, so that its operation stability is better.

[0042] See also Figure 1 and Figure 4 , wherein: a step ladder 21 is fixedly installed on the left side of the bracket 2, and the step ladder 21 extends to the lower left side of the shell 31. The step ladder 21 is convenient for workers to climb onto the bracket 2 to open the opening and closing door 8 for replacement operations.

[0043] In summary, the filter 431 performs the first step of filtering large particles in the air in the well, and then the semicircular water storage box 435 gradually tilts with the rotation angle until the internal water flow is poured downward from the top, and the gas that has entered the hollow rotating disk 41 is precipitated for the second time, and the mixture of dust and water after the secondary sedimentation is discharged and filtered in conjunction with the circulating water flow. In this process, most of the dust has been removed, and the remaining fine dust will aggravate the agglomeration of fine dust as the humidity inside the entire device increases, providing the necessary conditions for the subsequent efficient filtering operation of the semicircular filter cover 36.

[0044] The present invention also discloses a method for using a ventilation system for mining operations with a dust treatment function, comprising the following steps: S1. First, start the axial flow fan 32 to draw negative pressure inside the shell 31, and then suck air through the connecting pipe 5 and the air intake pipe 43 on the air intake mechanism 4. The air enters the hollow rotating disk 41 and then enters the connecting pipe 5 and enters the shell 31. Then, the air is filtered again through the semicircular filter cover 36 facing the connecting pipe 5 and enters the interior of the rotating part 34, and then is sucked into the ventilation duct by the axial flow fan 32.

[0045] S2, then start the driving member 42 to drive the hollow rotating disk 41 to rotate, so as to drive the air intake pipe 43 to revolve around the axis of the hollow rotating disk 41, and the air intake pipe 43 enters the interior of the water pool 61 alternately in turn, so that the filter screen 431 enters the interior of the water pool 61 and contacts the arc-shaped brush plate 62 to be scrubbed to clean the large particles of debris attached to the surface, so as to keep the filter screen 431 on each air intake pipe 43 clean and ensure air intake. At the same time, since the air intake pipe 43 is tilted, the water inside will naturally flow out with the rotation, and at the same time, part of the water flow is intercepted by the semicircular water storage box 435. As the hollow rotating disk 41 rotates to the highest position, the angle of the semicircular water storage box 435 gradually tilts until the water flow inside is splashed downward from the top to settle the intake air, and the settled water flow containing dust flows to the inside of the intake pipe 43 at the bottom. The intake pipe 43 at the bottom rotates under the water surface, and the arc guide ring 64 contacts and squeezes into the oblique ring groove 433 on the outside of the filter screen 431, so that the filter screen 431 stretches the spring 432 to the right and moves horizontally, leaking out of the through hole 434, so that the internal sewage is discharged smoothly, realizing continuous flushing, settling and sewage discharge.

[0046] S3. Then start the circulation pump 632 to pump out the water in the circulation box 631 and inject it into the pool 61, so that the water flushes the large particles of debris on the arc-shaped brush plate 62 and continuously flows back to the inside of the circulation box 631, and is filtered by the filter core plate 633 to continue the flushing cycle. With the cooperation of the baffle 65 and the guide hole 66, the circulation pump 632 injects the filtered water from the top to the left side of the baffle 65, and then the settled sewage is pumped to the right side of the baffle 65 through the guide hole 66 and finally the mixed sewage is pumped out for filtration, so that the water flow in the pool 61 forms a cycle and continuously discharges the sewage outward.

[0047] S4. Then when the wind speed sensor 37 detects that the internal wind speed has decreased, it is determined that the dust accumulated on the initially working semicircular filter cover 36 has reached the replacement level. At this time, the drive motor 33 is started to drive the rotating part 34 to rotate one hundred and eighty degrees. At this time, the initially working semicircular filter cover 36 rotates to the left side close to the opening and closing door 8, and the other semicircular filter cover 36 is switched to the working position to ensure the normal operation of the equipment. Then, the opening and closing door 8 is opened to disassemble and replace the semicircular filter cover 36. After completion, the opening and closing door 8 is closed, and the wheel is switched for the next replacement.

[0048] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A ventilation system for mining operations with dust handling function, comprising a base (1), characterized in that: The base (1) is mounted with a bracket (2), the top of the bracket (2) is mounted with an air extraction mechanism (3) and an air intake mechanism (4), the right side of the air extraction mechanism (3) is fixedly connected with a connecting pipe (5), the inner bottom wall of the connecting pipe (5) is fixedly connected with a flow-blocking inclined guide plate (9), the air intake mechanism (4) is movably mounted to the right end of the connecting pipe (5), and a dust cleaning component (6) for cleaning the air intake end of the air intake mechanism (4) is mounted on the base (1); The air extraction mechanism (3) comprises a shell (31), an axial flow fan (32), a drive motor (33), a rotating member (34), a semicircular partition (35) and two semicircular filter covers (36); the bottom of the shell (31) is fixedly mounted on the bracket (2); the rotating member (34) is rotatably mounted inside the shell (31); the output end of the drive motor (33) extends into the inside of the shell (31) and is connected to the rotating member (34) via a coupling; the axial flow fan (32) is fixedly mounted on the back of the shell (31); the outer side of the semicircular partition (35) is fixedly connected to the inside of the shell (31); the front side of the semicircular partition (35) is in contact with the rotating member (34); the two semicircular filter covers (36) are symmetrically clamped to the outer side of the rotating member (34); and a wind speed sensor (37) is fixedly mounted inside the shell (31); The air intake mechanism (4) comprises a hollow rotating disk (41), a driving member (42) and an annularly distributed air intake pipe (43); the left end of the hollow rotating disk (41) is rotatably connected to the right end of the connecting pipe (5); the driving member (42) is installed between the hollow rotating disk (41) and the bracket (2); the left end of the air intake pipe (43) is connected and fixed to the inside of the hollow rotating disk (41); and one end of the air intake pipe (43) away from the hollow rotating disk (41) is inclined in an outwardly expanding manner; The cleaning component (6) comprises a water pool (61), an arc-shaped brush plate (62), a circulation filter (63) and an arc-shaped guide ring (64); the bottom of the water pool (61) is fixedly mounted on the base (1); the outer side of the arc-shaped brush plate (62) is fixedly connected to the inside of the water pool (61); the circulation filter (63) is fixedly mounted on the base (1) and is circulated and connected to the water pool (61); the air inlet pipe (43) rotates with the hollow rotating disk (41) and contacts and cooperates with the left side of the arc-shaped brush plate (62) inside the water pool (61); the arc-shaped guide ring (64) is fixedly mounted on the left side of the arc-shaped brush plate (62); baffles (65) are provided on the inner side of the arc-shaped brush plate (62) and at the gap between the outer side thereof and the water pool (61); and guide holes (66) are provided on the baffles (65) at the gap between the arc-shaped brush plate (62) and the water pool (61).

2. The mining operation ventilation system with dust treatment function according to claim 1, characterized in that: The rotating member (34) comprises a shaft (341), a side disc (342), a side ring (343), and two scrapers (344); one end of the shaft (341) passes through and is fixedly connected to one side of the side disc (342); the other end of the shaft (341) is fixedly connected to the center of the side ring (343); the output end of the drive motor (33) is fixedly connected to the end of the shaft (341) via a coupling; the two scrapers (344) are symmetrically fixedly connected between the side disc (342) and the side ring (343); the two semicircular filter covers (36) are respectively clamped to the two sides of the two scrapers (344); and the opposite sides of the two scrapers (344) are fixedly connected to the shaft (341).

3. The mining operation ventilation system with dust treatment function according to claim 2, characterized in that: The interior of the housing (31) is fixedly connected to a limit ring (7), and a side of the side disc (342) away from the side ring (343) is in rotational contact with a side of the limit ring (7).

4. The mining operation ventilation system with dust treatment function according to claim 1, characterized in that: An opening and closing door (8) is hingedly connected to the outer side of the housing (31), and the top of the opening and closing door (8) is connected and fixed to the housing (31) by bolts.

5. The mining operation ventilation system with dust treatment function according to claim 1, characterized in that: The driving member (42) comprises a reduction motor (421), a gear (422) and a gear ring (423); the bottom of the reduction motor (421) is fixedly connected to the bracket (2); the output end of the reduction motor (421) is fixedly connected to the gear (422) via a coupling; the interior of the gear ring (423) is fixedly connected to the outside of the left port of the hollow rotating disk (41); and the outside of the gear ring (423) is meshed with the gear (422).

6. The mining operation ventilation system with dust treatment function according to claim 1, characterized in that: The circulation filter element (63) comprises a circulation box (631), a circulation pump (632) and a filter core plate (633); the left side of the circulation box (631) is connected and fixed to the water pool (61) via a pipeline; the circulation pump (632) is fixedly mounted to the top of the circulation box (631); the circulation pump (632) connects the circulation box (631) and the water pool (61) via a pipeline; and the filter core plate (633) is fixedly mounted inside the circulation box (631).

7. The mining operation ventilation system with dust treatment function according to claim 1, characterized in that: A filter screen (431) is sleeved on one end of the air intake pipe (43) away from the hollow rotating disk (41); one end of two springs (432) are fixedly connected to the inside of the filter screen (431); the other ends of the two springs (432) are fixedly connected to the end of the air intake pipe (43); an oblique ring groove (433) cooperating with the arc-shaped guide ring (64) is provided on the outside of the filter screen (431); through holes (434) distributed in an annular pattern are provided on the outside of the air intake pipe (43); a semicircular water storage box (435) corresponding to the air intake pipe (43) is fixedly connected to the inside of the hollow rotating disk (41); and the filter screen (431) contacts and cooperates with the arc-shaped brush plate (62) as the hollow rotating disk (41) rotates; When the oblique-mouthed annular groove (433) is contacted and squeezed into by the arc-shaped guide ring (64) as the filter screen (431) moves, the filter screen (431) as a whole moves horizontally along the outside of the air intake pipe (43) so that the through hole (434) leaks out for sewage discharge; when the oblique-mouthed annular groove (433) is separated from the arc-shaped guide ring (64) as the filter screen (431) moves, the two springs (432) pull the filter screen (431) back to its original position so that the through hole (434) is closed for normal air intake filtering.

8. The mining operation ventilation system with dust treatment function according to claim 1, characterized in that: A support wheel (611) is installed inside the water pool (61), and an annular groove (411) for rolling cooperation with the support wheel (611) is provided on the outer side of the hollow rotating disk (41).

9. The mining operation ventilation system with dust treatment function according to claim 1, characterized in that: A step ladder (21) is fixedly mounted on the left side of the bracket (2), and the step ladder (21) extends to the lower left side of the housing (31).

10. A method for ventilation and dust removal using the mining operation ventilation system with dust treatment function as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: S1, first start the axial flow fan (32) to draw negative pressure inside the housing (31), then suck air through the connecting pipe (5) and the air inlet pipe (43) on the air inlet mechanism (4), the air enters the hollow rotating disk (41), then enters the connecting pipe (5), enters the housing (31), then passes through the semicircular filter cover (36) facing the connecting pipe (5) 5, is filtered again, enters the interior of the rotating member (34), and then is drawn into the ventilation duct by the axial flow fan (32); S2, then start the driving member (42) to drive the hollow rotating disk (41) to rotate, thereby driving the air intake pipe (43) to revolve around the axis of the hollow rotating disk (41), and the air intake pipe (43) sequentially and alternately enters the interior of the water pool (61), so that the filter screen (431) enters the interior of the water pool (61) and contacts the arc-shaped brush plate (62) to be scrubbed and cleaned of large particles of debris attached to the surface. At the same time, since the air intake pipe (43) is inclined, the water inside will naturally flow out as it rotates, and at the same time, part of the water flow will be intercepted by the semicircular water storage box (435), and as the hollow rotating disk (41) rotates, part of the water flow will be intercepted by the semicircular water storage box (435). The moving disk (41) rotates to a high position, at which time the angle of the semicircular water storage box (435) gradually tilts until the water flow inside splashes downward from the top to settle the intake air, and the settled water flow containing dust flows to the inside of the intake pipe (43) at the bottom. The intake pipe (43) at the bottom rotates under the water surface, and the arc-shaped guide ring (64) contacts and squeezes into the inside of the oblique ring groove (433) outside the filter screen (431), so that the filter screen (431) stretches the spring (432) to the right and moves horizontally, leaking out of the through hole (434), so that the internal sewage is discharged smoothly; S3, then starting the circulation pump (632) to pump water from the circulation box (631) into the pool (61), so that the water washes away the large particles of debris on the arc-shaped brush plate (62) and continuously flows back into the circulation box (631), is filtered by the filter core plate (633) and continuously performs a flushing cycle, and with the cooperation of the baffle plate (65) and the guide hole (66), the circulation pump (632) injects filtered water from the top to the left side of the baffle plate (65), and then the settled sewage is pumped to the right side of the baffle plate (65) through the guide hole (66) and finally the mixed sewage is pumped out and filtered, so that the water flow inside the pool (61) forms a cycle and the sewage is continuously discharged to the outside; S4, when the wind speed sensor (37) detects that the internal wind speed has decreased, it is determined that the dust accumulated on the semicircular filter cover (36) that is initially working has reached the replacement level, and the drive motor (33) is started to drive the rotating member (34) to rotate 180 degrees. At this time, the semicircular filter cover (36) that is initially working rotates to the left side close to the opening and closing door (8), and the other semicircular filter cover (36) is switched to the working position to ensure the normal operation of the equipment. Then, the opening and closing door (8) is opened to disassemble and replace the semicircular filter cover (36). After completion, the opening and closing door (8) is closed, and the wheel is switched for the next replacement.

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