Intelligent ventilation equipment for underground coal mine

Abstract

The invention discloses coal mine underground intelligent ventilation equipment, and belongs to the technical field of ventilation equipment, the coal mine underground intelligent ventilation equipment comprises a pipeline and an air duct, the air duct is fixedly mounted on the pipeline, an induced draft fan is fixedly mounted in the air duct, a filtering and purifying mechanism is arranged in the pipeline, and an elastic collision mechanism is arranged on the filtering and purifying mechanism; the filtering and purifying mechanism comprises a fixing ring and a driving shaft, when a filter screen in the pipeline needs to be cleaned, a worker can rotate the driving shaft outside the pipeline to enable a rotating shaft in the pipeline to rotate, a cleaning plate is driven through the rotating shaft, a brush on the cleaning plate is made to brush dust on the first filter screen, and the cleaning efficiency is improved. Falling dust can be cleaned out by opening the bottom plate, dust removal and cleaning can be conveniently and rapidly conducted on a filter screen in the ventilation equipment, the ventilation quality is improved, and the phenomenon of bacterium breeding caused by dust accumulation is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of ventilation equipment, and in particular provides an intelligent ventilation equipment for underground coal mines. Background Art

[0002] In today's energy-intensive society, in order to obtain more resources, people usually mine coal in deep mines, which leads to the presence of various harmful gases such as carbon monoxide, hydrogen sulfide, sulfur dioxide, nitrogen dioxide, ammonia, hydrogen and methane in deep mines. The accumulation of these gases can easily cause accidents such as poisoning, fire and explosion. Therefore, in order to mine safely, it is often necessary to ventilate the mine to input a large amount of fresh air, dilute and discharge harmful gases, and adjust the temperature and humidity to improve the working environment of workers.

[0003] According to a Chinese patent with the publication number "CN206513394U", a ventilation device for underground coal mines includes a housing, an exhaust chimney, a motor and a fan blade, a shock-absorbing base is provided at the bottom of the housing, a connecting buckle is provided at the connection of the housing, an air inlet and an air outlet are provided at both ends of the housing, a filter screen and an inlet-side sound-absorbing layer are welded on the air inlet, an outlet-side sound-absorbing layer is provided at the air outlet, the air outlet is connected to the exhaust chimney, an intelligent exhaust window is provided on the exhaust chimney, a pressure sensor is provided on the intelligent exhaust window, and an induced draft fan is provided at the outlet end of the exhaust chimney. The utility model has a reasonable structural design and has the advantages of long service life, low noise, safety and stability.

[0004] After the above-mentioned equipment is used for a long time, a large amount of dust will adhere to the internal filter of the ventilation equipment. If the dust is not cleaned in time, it will cause the filter to be blocked and bacteria to grow, affecting the ventilation quality underground in the coal mine. The existing cleaning method generally requires disassembly and removal for cleaning. The cleaning steps are relatively cumbersome and will affect the normal use of the ventilation equipment. Therefore, an intelligent ventilation equipment for underground coal mines is proposed to solve the above-mentioned problems. Summary of the invention

[0005] The technical problem to be solved by the present invention is to address the deficiencies in the above-mentioned prior art, and the present invention provides an intelligent ventilation device for underground coal mines.

[0006] To achieve the above object, the technical solution adopted by the present invention is: an intelligent ventilation device for underground coal mines, comprising a pipeline and a wind tube, wherein the wind tube is fixedly installed at one end of the pipeline, an induced draft fan is fixedly installed inside the wind tube, a filtering and purifying mechanism is arranged inside the pipeline, and a spring mechanism is arranged on the filtering and purifying mechanism;

[0007] The filtering and purification mechanism includes a fixed ring and a driving shaft, the fixed ring is fixedly installed on the inner wall of the pipeline, the interior of the fixed ring is movably equipped with a ring frame, the interior of the ring frame is fixedly installed with a filter screen, the upper end of the driving shaft is fixedly installed with a second bevel gear, the second bevel gear is meshed with a first bevel gear, the interior of the first bevel gear is fixedly installed with a rotating shaft, and the rotating shaft is located on the axis of the pipeline, the rotating shaft is fixedly installed with a cleaning plate, and the cleaning plate is fixedly installed with a brush that acts on the filter screen.

[0008] Furthermore, there are two groups of filtering and purifying mechanisms, which are arranged in parallel in the pipeline, and the filter net includes a first filter net and a second filter net, which are fixedly installed on the two groups of filtering and purifying mechanisms respectively.

[0009] Furthermore, the drive shaft is rotatably assembled inside the pipe through a bearing, and a turning handle is fixedly mounted on the lower end of the drive shaft.

[0010] Furthermore, a fixing frame is fixedly installed inside the pipeline, a bearing is installed inside the fixing frame, and the end of the rotating shaft is installed on the inner wall of the inner ring of the bearing, and the rotating shaft passes through the middle of the ring frame and the filter screen.

[0011] Furthermore, the impact mechanism includes a fixed seat, a first circular ring and a second circular ring, the fixed seat is fixedly installed on the inner wall of the fixed ring, a guide column is fixedly installed on the fixed seat, a spring is sleeved on the guide column, a limit block is fixedly installed on the other end of the guide column, the other end of the guide column passes through the ring frame, and the spring is located between the fixed seat and the ring frame, a first hemisphere is fixedly connected to the first circular ring, and a second hemisphere is fixedly connected to the second circular ring.

[0012] Furthermore, the first circular ring is fixedly mounted on the ring frame, the second circular ring is fixedly mounted on the rotating shaft, and the positions of the first circular ring and the second circular ring correspond to each other. The number of the first hemispheres is four, and the four first hemispheres are fixedly mounted on the first circular ring at equal intervals. The number of the second hemispheres is four, and the four second hemispheres are fixedly connected to the second circular ring at equal intervals.

[0013] Furthermore, a dust exhaust port is provided at the bottom of the pipe, and the position of the dust exhaust port corresponds to the filtering and purification mechanism. A bottom plate is installed inside the dust exhaust port, and a support frame is fixedly installed at the bottom of the pipe.

[0014] Furthermore, a locking plate mechanism is provided at the bottom of the pipe, and the locking plate mechanism is located between the two dust exhaust ports, the locking plate mechanism includes a fixed plate and a rotating column, the fixed plate is fixedly installed at the bottom of the pipe, the upper end of the rotating column is rotatably connected to the bottom of the fixed plate through a bearing, a gear is fixedly installed on the rotating column, a handwheel is fixedly installed on the outer end of the rotating column, the bottom of the fixed plate is symmetrically movable with a toothed plate, and the toothed plate is meshed with the gear, a locking plate is fixedly installed on the upper surface of the outer end of the toothed plate, and the locking plate is supported on the bottom plate.

[0015] Furthermore, a guide block is fixedly installed on the bottom of the fixed plate, a guide opening is opened on the tooth plate, and the guide block is inserted into the guide opening, and a limit plate is fixedly installed on the bottom of the guide block, and the width of the limit plate is greater than the width of the guide opening.

[0016] The beneficial effects of using the present invention are:

[0017] 1. The present invention designs the first filter and the second filter, which can perform double filtration and purification on the ventilated air, improve the quality of the air flowing out of the wind tube, and reduce the harm to the health of underground workers.

[0018] 2. The present invention cooperates with the fixed ring, the ring frame, the filter screen, the rotating shaft, the cleaning plate, the brush, the first bevel gear, the second bevel gear, the driving shaft, the handle, the fixed frame and the bearing to operate. When it is necessary to clean the filter screen inside the pipeline, the two groups of cleaning plates and the brush can be driven to rotate at the same time, thereby cleaning the two filter screens at the same time. The three-dimensional filter screen in the ventilation equipment can be quickly and conveniently dust-removed and cleaned, thereby improving the quality of ventilation and avoiding the phenomenon of bacterial growth caused by dust accumulation.

[0019] 3. The present invention cooperates with the fixed seat, the guide column, the spring, the limit block, the first ring, the first hemisphere, the second ring and the second hemisphere to operate. When the filter is cleaned with a brush, the second ring is driven to rotate at the same time, so that the second hemisphere is periodically contacted with the first hemisphere, driving the ring frame to move periodically and reset under the action of the spring. The vibration generated can shake off the dust on the filter, further improving the cleaning effect of the dust on the filter.

[0020] 4. Through the coordinated operation of the fixed plate, rotating column, gear, hand wheel, guide block, limit plate, tooth plate, guide port and lock plate, when it is necessary to clean the dust dropped inside the pipe, the transmission relationship of the gear tooth plate can simultaneously make the lock plates on both sides away from the bottom plate, thereby realizing the simultaneous and rapid disassembly of the bottom plates on both sides. Without disassembling the filter screen, the cleaning work of the dropped dust can be completed conveniently and quickly, so that the overall cleaning and dust removal work of the filter screen can be completed conveniently and effectively, making this ventilation equipment more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is one of the three-dimensional structural schematic diagrams of the present invention.

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention.

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the filtering and purification mechanism of the present invention.

[0024] Figure 4 It is a schematic diagram of the cross-sectional structure of the filtering and purifying mechanism of the present invention.

[0025] Figure 5 It is a three-dimensional structural schematic diagram of the impact mechanism of the present invention.

[0026] Figure 6 This is the second schematic diagram of the three-dimensional structure of the present invention.

[0027] Figure 7 It is a three-dimensional structural schematic diagram of the locking plate mechanism of the present invention.

[0028] The reference numerals include: 1, pipeline, 2, filtering and purifying mechanism, 201, fixing ring, 202, ring frame, 203, first filter screen, 204, rotating shaft, 205, cleaning plate, 206, brush, 207, first bevel gear, 208, second bevel gear, 209, driving shaft, 210, turning handle, 211, second filter screen, 212, fixing frame, 213, bearing, 3, impact mechanism, 301, fixing seat, 3 02. Guide column, 303. Spring, 304. Limit block, 305. First ring, 306. First hemisphere, 307. Second ring, 308. Second hemisphere, 4. Locking plate mechanism, 401. Fixed plate, 402. Rotating column, 403. Gear, 404. Hand wheel, 405. Guide block, 406. Limit plate, 407. Tooth plate, 408. Guide port, 409. Locking plate, 5. Air duct, 6. Draft fan, 7. Bottom plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0033] Embodiment 1

[0034] Reference Figure 1 and Figure 2 A kind of intelligent ventilation equipment for underground coal mines includes a pipeline 1 and a wind tube 5. The wind tube 5 is fixedly installed at one end of the pipeline 1. An induced draft fan 6 is fixedly installed inside the wind tube 5. A filtering and purification mechanism 2 is arranged inside the pipeline 1, and a rebound mechanism 3 is arranged on the filtering and purification mechanism 2.

[0035] The air duct 5 and the induced draft fan 6 realize ventilation work.

[0036] The filtering and purification mechanism 6 is used to filter dust in the air.

[0037] The impact mechanism 3 is used to assist the filtering and purification mechanism 6 in cleaning.

[0038] like Figure 2 , Figure 3 and Figure 4As shown, the filtering and purifying mechanism 2 includes a fixed ring 201 and a driving shaft 209, the fixed ring 201 is fixedly mounted on the inner wall of the pipeline 1, the internal movably assembled ring frame 202 of the fixed ring 201, the internal of the ring frame 202 is fixedly mounted with a filter screen, the upper end of the driving shaft 209 is fixedly mounted with a second bevel gear 208, the second bevel gear 208 is meshed with a first bevel gear 207, the internal of the first bevel gear 207 is fixedly mounted with a rotating shaft 204, and the rotating shaft 204 is located on the axis of the pipeline 1, the rotating shaft 204 is fixedly mounted with a cleaning plate 205, and the cleaning plate 205 is fixedly mounted with a brush 206 acting on the filter screen.

[0039] A bracket is disposed inside the ring frame 202 to provide auxiliary support to the ring frame 202 and facilitate installation of the filter screen. At the same time, the bracket plays an auxiliary supporting role for the rotating shaft 204 .

[0040] The driving shaft 209 rotates, and the second bevel gear 208 and the first bevel gear 207 drive the rotating shaft 204 to rotate, and then drive the cleaning plate 205 and the brush 206 to rotate, so as to clean the filter and remove the dust attached to the surface of the filter.

[0041] The filtering and purification mechanism 2 can be used to conveniently and quickly remove dust from the filter screen in the ventilation equipment, thereby improving the quality of ventilation and avoiding the phenomenon of bacterial growth caused by dust accumulation.

[0042] Specifically, if Figure 2 and Figure 3 As shown, there are two groups of filtering and purifying mechanisms 2, which are arranged in parallel in the pipeline 1, and the filter nets include a first filter net 203 and a second filter net 211, which are fixedly installed on the two groups of filtering and purifying mechanisms 2 respectively.

[0043] The first filter 203 and the second filter 211 are provided to perform double filtration and purification on the ventilated air, thereby improving the quality of the air flowing out of the air duct 5 .

[0044] Specifically, if Figure 3 As shown, the drive shaft 209 is rotatably assembled inside the pipeline 1 through a bearing, and a turning handle 210 is fixedly installed at the lower end of the drive shaft 209.

[0045] The driving shaft 209 can be driven to rotate by rotating the turning handle 210 .

[0046] In practical applications, the handle 210 can be connected to a power mechanism such as a motor to achieve remote control and timing control of the filter cleaning work, thereby realizing intelligent application.

[0047] Specifically, if Figure 2 and Figure 3As shown, a fixing frame 212 is fixedly installed inside the pipeline 1, a bearing 213 is installed inside the fixing frame 212, and the end of the rotating shaft 204 is installed on the inner wall of the inner ring of the bearing 213, and the rotating shaft 204 passes through the ring frame 202 and the middle of the filter screen.

[0048] The fixing frame 212 and the bearing 213 are provided to support the rotating shaft 204 , facilitate the rotation of the rotating shaft 204 , and improve the stability of the rotation of the rotating shaft 204 .

[0049] Specifically, if Figure 5 As shown, the impact mechanism 3 includes a fixed seat 301, a first circular ring 305 and a second circular ring 307. The fixed seat 301 is fixedly installed on the inner wall of the fixed ring 201. A guide column 302 is fixedly installed on the fixed seat 301. A spring 303 is sleeved on the guide column 302. A limit block 304 is fixedly installed on the other end of the guide column 302. The other end of the guide column 302 passes through the ring frame 202, and the spring 303 is located between the fixed seat 301 and the ring frame 202. A first hemisphere 306 is fixedly connected to the first circular ring 305, and a second hemisphere 308 is fixedly connected to the second circular ring 307.

[0050] Specifically, if Figure 5 As shown, the first circular ring 305 is fixedly mounted on the ring frame 202, the second circular ring 307 is fixedly mounted on the rotating shaft 204, and the positions of the first circular ring 305 and the second circular ring 307 correspond to each other. There are four first hemispheres 306, which are fixedly mounted on the first circular ring 305 at equal intervals. There are four second hemispheres 308, which are fixedly connected to the second circular ring 307 at equal intervals.

[0051] When the rotating shaft 204 rotates, it will drive the second ring 307 to rotate. When the second hemisphere 308 on the second ring 307 contacts the first hemisphere 306 on the first ring 305, it will push the first ring 305 to drive the ring frame 202 to move axially and compress the spring 303. When the first hemisphere 306 and the second hemisphere 308 are offset, the ring frame 202 is reset under the action of the spring 303 and hits the limit block 304. The generated vibration will shake off the dust on the filter net, further improving the dust cleaning effect on the filter net.

[0052] The number of the first hemispheres 306 and the second hemispheres 308 can be adjusted according to actual conditions. It is necessary to ensure that the number of the first hemispheres 306 and the second hemispheres 308 are the same, and the intervals between adjacent first hemispheres 306 or second hemispheres 308 are the same.

[0053] Specifically, if Figure 6 As shown, a dust outlet is provided at the bottom of the pipe 1 , and the position of the dust outlet corresponds to the filtering and purifying mechanism 2 . A bottom plate 7 is installed inside the dust outlet, and a support frame is fixedly installed at the bottom of the pipe 1 .

[0054] After the bottom plate 7 is removed, the dust swept away in the pipeline 1 can be cleaned and discharged.

[0055] The support frame is used to support the pipeline 1.

[0056] Working principle: When the filter screen inside the pipe 1 needs to be cleaned, the staff can drive the driving shaft 209 to rotate by turning the handle 210 outside the pipe 1. The driving shaft 209 drives the rotating shaft 204 to rotate through the transmission of the first bevel gear 207 and the second bevel gear 208, and then drives the cleaning plate 205 and the brush 206 to rotate to clean the dust on the filter screen. The fallen dust can be cleaned out by opening the bottom plate 7;

[0057] At the same time, the rotating shaft 204 will drive the second ring 307 to rotate during the rotation process. When the second hemisphere 308 on the second ring 307 contacts the first hemisphere 306 on the first ring 305, the first ring 305 and the ring frame 202 will be pushed to move. When the first hemisphere 306 and the second hemisphere 308 are offset, the ring frame 202 is reset under the action of the spring 303 and hits the limit block 304, so that the ring frame 202 and the filter screen vibrate, and the dust on the filter screen can be shaken off.

[0058] Embodiment 2

[0059] On the basis of the first embodiment, a locking plate mechanism 4 is designed.

[0060] The locking plate mechanism 4 is used to limit and fix the bottom plate 7 , and is also used to realize the rapid disassembly and installation of the bottom plate 7 .

[0061] Specifically, if Figure 6 and Figure 7 As shown, a locking plate mechanism 4 is provided at the bottom of the pipe 1, and the locking plate mechanism 4 is located between the two dust exhaust ports, the locking plate mechanism 4 includes a fixed plate 401 and a rotating column 402, the fixed plate 401 is fixedly installed at the bottom of the pipe 1, the upper end of the rotating column 402 is rotatably connected to the bottom of the fixed plate 401 through a bearing, a gear 403 is fixedly installed on the rotating column 402, a hand wheel 404 is fixedly installed on the outer end of the rotating column 402, the bottom of the fixed plate 401 is symmetrically movable and equipped with a tooth plate 407, and the tooth plate 407 is meshed with the gear 403, a locking plate 409 is fixedly installed on the upper surface of the outer end of the tooth plate 407, and the locking plate 409 is supported on the bottom plate 7.

[0062] The locking plate 409 is used to support and limit the bottom plate 7 so that the bottom plate 7 is installed on the pipeline 1.

[0063] Since the symmetrically arranged tooth plates 407 are located on both sides of the gear 403, when the gear 403 rotates, it will drive the two tooth plates 407 to move in opposite directions. When the two sets of tooth plates 407 and the locking plate 409 move inward and the locking plate 409 is separated from the bottom plate 7, the bottom plate 7 can be easily removed and then the dust cleaning work can be carried out.

[0064] In practical applications, the rotating column 402 can be connected to a power mechanism such as a motor to achieve automatic rotation and save manpower.

[0065] Specifically, if Figure 7 As shown, a guide block 405 is fixedly installed at the bottom of the fixed plate 401, a guide opening 408 is opened on the tooth plate 407, and the guide block 405 is inserted into the guide opening 408, and a limit plate 406 is fixedly installed at the bottom of the guide block 405, and the width of the limit plate 406 is greater than the width of the guide opening 408.

[0066] The guide block 405 is in a rectangular shape, which can ensure that the tooth plate 407 moves in a straight line. The limit plate 406 is designed to limit the position of the tooth plate 407, thereby ensuring that the lock plate 409 can effectively contact and support the bottom plate 7.

[0067] Working principle: when it is necessary to clean the dust that has fallen inside the pipe 1, the staff can drive the rotating column 402 to rotate by turning the hand wheel 404, and drive the gear 403 to rotate through the rotating column 402, so that the two tooth plates 407 move inward, driving the locking plate 409 away from the bottom plate 7. When the bottom plate 7 loses the limiting fixation of the locking plate 409, it can be directly removed from the dust exhaust port of the pipe 1, so as to facilitate the discharge of the cleaned dust outside the pipe 1. The disassembly work of the two bottom plates 7 can be completed at the same time, saving disassembly time and improving the efficiency of handling dust in the pipe 1.

[0068] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, many changes can be made in the specific implementation methods and application scopes based on the ideas of the present invention. As long as these changes do not deviate from the concept of the present invention, they all belong to the protection scope of the present invention.

Claims

1. An intelligent ventilation device for underground coal mines, characterized in that: The invention comprises a pipeline (1) and a wind tube (5), wherein the wind tube (5) is fixedly mounted on one end of the pipeline (1), an induced draft fan (6) is fixedly mounted inside the wind tube (5), a filtering and purifying mechanism (2) is arranged inside the pipeline (1), and a rebound mechanism (3) is arranged on the filtering and purifying mechanism (2); The filtering and purifying mechanism (2) comprises a fixing ring (201) and a driving shaft (209); the fixing ring (201) is fixedly mounted on the inner wall of the pipeline (1); a ring frame (202) is movably mounted inside the fixing ring (201); a filter screen is fixedly mounted inside the ring frame (202); a second bevel gear (208) is fixedly mounted on the upper end of the driving shaft (209); a first bevel gear (207) is meshed on the second bevel gear (208); a rotating shaft (204) is fixedly mounted inside the first bevel gear (207); the rotating shaft (204) is located on the axis of the pipeline (1); a cleaning plate (205) is fixedly mounted on the rotating shaft (204); and a brush (206) for acting on the filter screen is fixedly mounted on the cleaning plate (205).

2. According to the intelligent ventilation equipment for underground coal mines as described in claim 1, it is characterized by: There are two groups of the filtering and purifying mechanisms (2), and the two groups of the filtering and purifying mechanisms (2) are arranged in parallel in the pipeline (1). The filter net comprises a first filter net (203) and a second filter net (211), and the first filter net (203) and the second filter net (211) are fixedly mounted on the two groups of the filtering and purifying mechanisms (2), respectively.

3. According to the intelligent ventilation equipment for underground coal mines as described in claim 1, it is characterized by: The driving shaft (209) is rotatably mounted inside the pipe (1) via a bearing, and a turning handle (210) is fixedly mounted on the lower end of the driving shaft (209).

4. According to the intelligent ventilation equipment for underground coal mines as described in claim 1, it is characterized by: A fixing frame (212) is fixedly installed inside the pipeline (1), a bearing (213) is installed inside the fixing frame (212), and the end of the rotating shaft (204) is installed on the inner wall of the inner ring of the bearing (213), and the rotating shaft (204) passes through the middle of the ring frame (202) and the filter screen.

5. According to the intelligent ventilation equipment for underground coal mines as described in claim 1, it is characterized by: The impact mechanism (3) comprises a fixed seat (301), a first circular ring (305) and a second circular ring (307); the fixed seat (301) is fixedly mounted on the inner wall of the fixed ring (201); a guide column (302) is fixedly mounted on the fixed seat (301); a spring (303) is sleeved on the guide column (302); a limit block (304) is fixedly mounted on the other end of the guide column (302); the other end of the guide column (302) passes through the ring frame (202); the spring (303) is located between the fixed seat (301) and the ring frame (202); a first hemisphere (306) is fixedly connected to the first circular ring (305); and a second hemisphere (308) is fixedly connected to the second circular ring (307).

6. According to the intelligent ventilation equipment for underground coal mines as claimed in claim 5, it is characterized by: The first circular ring (305) is fixedly mounted on the ring frame (202), the second circular ring (307) is fixedly mounted on the rotating shaft (204), and the first circular ring (305) and the second circular ring (307) are positioned correspondingly. The number of the first hemispheres (306) is four, and the four first hemispheres (306) are fixedly mounted on the first circular ring (305) at equal intervals. The number of the second hemispheres (308) is four, and the four second hemispheres (308) are fixedly connected to the second circular ring (307) at equal intervals.

7. According to the intelligent ventilation equipment for underground coal mines as described in claim 1, it is characterized by: A dust discharge port is provided at the bottom of the pipe (1), and the position of the dust discharge port corresponds to the filtering and purifying mechanism (2). A bottom plate (7) is installed inside the dust discharge port, and a support frame is fixedly installed at the bottom of the pipe (1).

8. According to the intelligent ventilation equipment for underground coal mines as claimed in claim 7, it is characterized by: A locking plate mechanism (4) is provided at the bottom of the pipe (1), and the locking plate mechanism (4) is located between the two dust exhaust ports. The locking plate mechanism (4) comprises a fixed plate (401) and a rotating column (402). The fixed plate (401) is fixedly mounted on the bottom of the pipe (1). The upper end of the rotating column (402) is rotatably connected to the bottom of the fixed plate (401) via a bearing. A gear (403) is fixedly mounted on the rotating column (402). A hand wheel (404) is fixedly mounted on the outer end of the rotating column (402). A toothed plate (407) is symmetrically movable at the bottom of the fixed plate (401), and the toothed plate (407) is meshed with the gear (403). A locking plate (409) is fixedly mounted on the upper surface of the outer end of the toothed plate (407), and the locking plate (409) is supported on the bottom plate (7).

9. The intelligent ventilation equipment for underground coal mines according to claim 8, characterized in that: A guide block (405) is fixedly mounted on the bottom of the fixed plate (401); a guide opening (408) is provided on the tooth plate (407), and the guide block (405) is inserted into the guide opening (408); a limit plate (406) is fixedly mounted on the bottom of the guide block (405), and the width of the limit plate (406) is greater than the width of the guide opening (408).

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