Efficient ventilation device for underground coal mine

Abstract

The utility model discloses an efficient ventilation device for an underground coal mine, which belongs to the field of coal mine dust removal equipment and comprises a box body, a ventilation hole is arranged on the front surface of the box body, a motor is fixedly mounted at the top end of the box body, an output shaft of the motor is fixedly sleeved with a cam, and a filtering mechanism is movably mounted on the inner side of the ventilation hole. The filtering mechanism comprises a first filter screen and a second filter screen, discharging inclined plates are fixedly installed at the bottoms of the first filter screen and the second filter screen, synchronous rods are fixedly connected to the four corners of the first filter screen and the four corners of the second filter screen, a first limiting plate is fixedly installed at the top of the second filter screen, and a buffering pad is fixedly installed on the inner side of the first limiting plate. And second limiting plates are fixedly installed on the left side and the right side of the second filter screen correspondingly, spring columns are movably connected into the second limiting plates in a sleeved mode, vibration of the filter screen can be achieved, filter holes of the filter screen are further prevented from being blocked by particulate matter, the overall smoothness of the filter screen is guaranteed, the cleaning efficiency is more excellent compared with cleaning, and the ventilation performance of the overall equipment is improved.

Description

Technical Field

[0001] The utility model relates to the field of coal mine dust removal equipment, and more specifically, to a high-efficiency ventilation device underground in a coal mine. Background Art

[0002] The environment of underground coal mining is very harsh. There are sewage, dust, gas and other substances in the environment, which seriously threaten the life safety of workers. Therefore, corresponding treatment equipment needs to be set up in the working area. Patent publication number CN220748331U discloses an efficient dust removal device for underground coal mines, including a box body with a ventilation port on the box body, a baffle arranged horizontally in the box body, a dust removal mechanism arranged above the baffle, and a dust collecting chamber below the baffle; the dust removal mechanism includes an exhaust fan, the exhaust fan is fixedly connected to the top of the baffle, and the air outlet of the exhaust fan is connected to the exhaust duct A filter is provided between the air inlet of the exhaust fan and the ventilation port of the box body, and a dust collecting plate is fixedly connected to the bottom of the filter screen, and the dust collecting plate is arranged above the dust collecting chamber through the baffle; a cleaning device is provided on the front side of the filter screen, and the cleaning device includes a swing arm and a driving electric cylinder, the swing arm is hinged at the top of the box body, a brush is provided on one side of the swing arm, the driving electric cylinder is hinged on the side wall of the box body, and the other end of the driving electric cylinder is hinged on the swing arm; the utility model is used to solve the problem in the prior art that the underground dust removal mechanism is easily clogged by dust and cannot operate continuously for a long time, thereby affecting production efficiency.

[0003] In the existing technology, although the surface of the filter can be cleaned to prevent clogging, some particles accompanied by dust will enter the inside of the filter holes and accumulate and clog them. At this time, the brush cannot clean this area, thereby affecting the overall ventilation performance. Finally, more and more filter holes are accumulated, causing ventilation paralysis. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In response to the problems existing in the prior art, the purpose of the present utility model is to provide a high-efficiency ventilation device for coal mines, which can vibrate the filter itself to further prevent its filter holes from being blocked by particulate matter, thereby ensuring its overall smoothness, having better cleaning efficiency than sweeping, and improving the ventilation performance of the overall equipment.

[0006] 2. Technical solution

[0007] In order to solve the above problems, the present invention adopts the following technical solutions.

[0008] The cam is fixedly mounted on the bottom of the box body, and a cam is fixedly mounted on the output shaft of the motor; a filter mechanism is movably mounted on the inner side of the vent hole, and the filter mechanism comprises a first filter screen and a second filter screen, the bottoms of the first filter screen and the second filter screen are both fixedly mounted with a feed inclined plate, the four corners of the first filter screen and the second filter screen are fixedly connected with a synchronization rod, a limit plate is fixedly mounted on the top of the second filter screen, a buffer pad is fixedly mounted on the inner side of the first limit plate, a limit plate is fixedly mounted on the left and right sides of the second filter screen, a spring column is movably mounted on the inner side of the second limit plate, and a convex plate is integrally formed on the bottom end of the feed inclined plate at the bottom of the second filter screen, and a spring is fixedly connected to the inner side of the convex plate;

[0009] An embedding groove is provided on the inner side of the front of the box body, a cleaning plate is slidably installed inside the embedding groove, a cleaning pad is fixedly adhered to the bottom of the cleaning plate, and connecting rods are fixedly installed on the left and right sides of the cleaning plate;

[0010] The bottom end of the cleaning plate is attached to a partition through a cleaning pad, a square groove is opened in the middle of the partition, a guide rod is fixedly installed inside the square groove, and a discharge chute is opened on the surface of the partition and at one end close to the front inner wall of the box body.

[0011] Furthermore, a sliding groove 2 is opened on both the left and right sides of the box body, a sliding groove 1 is opened on the top of the box body, the limiting plate 2 is slidably installed inside the sliding groove 2, and the limiting plate 1 is slidably installed inside the sliding groove 1.

[0012] Furthermore, one end of the connecting rod is fixedly connected to the outer surface of the synchronization rod.

[0013] Furthermore, a circular groove is provided on the inner side of the box body on the right side of the sliding groove 1, and the shape of the circular groove is adapted to the shape formed by the cam rotating one circle.

[0014] Furthermore, the guide rod is movably sleeved inside the spring and the convex plate, and the size of the square groove is adapted to the size of the convex plate.

[0015] Furthermore, the partition is fixedly installed on the inner surface of the box.

[0016] Furthermore, an exhaust fan is fixedly installed on the side of the partition, and a swing arm device is provided on the outer surface of the second filter.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) This solution uses the filter mechanism to achieve its own vibration by moving back and forth, thereby shaking off some particles that accumulate inside the filter holes and cannot be swept away, further improving the smoothness of the entire filter and ensuring the efficiency of the overall ventilation.

[0020] (2) This solution utilizes a cleaning plate that can move along with the movement of the filter mechanism, so that it can further sweep away the particles shaken off the surface of the partition, thereby improving the cleaning efficiency of the entire device and preventing accumulation and clogging on the surface of the partition. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a three-dimensional schematic diagram of the internal structure of the box in the present utility model;

[0023] Figure 3 This is a side cross-sectional view of the internal structure of the box in the present invention;

[0024] Figure 4 This is a schematic diagram of the filter structure of the utility model;

[0025] Figure 5 This is a schematic diagram of the cleaning plate structure in the present utility model;

[0026] Figure 6 This is a schematic diagram of the partition structure in the present utility model.

[0027] Description of the numbers in the figure:

[0028] 1. Box body; 2. Ventilation holes; 3. Motor; 4. Cam; 5. Filter mechanism; 6. Cleaning plate; 7. Exhaust fan; 8. Partition; 9. Swing arm device; 101. Embedded slot; 102. Sliding slot 2; 103. Circular slot; 104. Sliding slot 1; 501. Filter screen 1; 502. Filter screen 2; 503. Unloading inclined plate; 504. Synchronizing rod; 505. Limiting plate 1; 506. Buffer pad; 507. Limiting plate 2; 508. Spring column; 509. Spring; 601. Cleaning pad; 602. Connecting rod; 801. Guide rod; 802. Unloading chute. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0032] Example 1:

[0033] See also Figure 1-6 , a high-efficiency ventilation device for underground coal mines, comprising a box body 1, a ventilation hole 2 is opened on the front of the box body 1, a motor 3 is fixedly installed on the top of the box body 1, a bottom plate is detachably installed on the bottom of the box body 1, a cam 4 is fixedly sleeved on the output shaft of the motor 3, a filter mechanism 5 is movably installed on the inner side of the ventilation hole 2, the filter mechanism 5 comprises a filter screen 1 501 and a filter screen 2 502, the bottoms of the filter screen 1 501 and the filter screen 2 502 are fixedly installed with a material discharge inclined plate 503, the four corners of the filter screen 1 501 and the filter screen 2 502 are fixedly connected with a synchronization rod 504, the top of the filter screen 2 502 is fixedly installed with a limit plate 1 505, and the inner side of the limit plate 1 505 is fixedly installed with a buffer pad 506. The left and right sides of the second mesh 502 are fixedly installed with a second limit plate 507, and the internal movably sleeve of the second limit plate 507 is provided with a spring column 508. The bottom end of the unloading inclined plate 503 at the bottom of the second filter screen 502 is integrally formed with a convex plate, and the inner side of the convex plate is fixedly connected with a spring 509. The left and right sides of the interior of the box body 1 are provided with a second sliding groove 102, and the top of the interior of the box body 1 is provided with a first sliding groove 104. The second limit plate 507 is slidably installed in the interior of the second sliding groove 102, and the first limit plate 505 is slidably installed in the interior of the first sliding groove 104. A circular groove 103 is provided on the inner side of the box body 1 on the right side of the first sliding groove 104. The shape of the circular groove 103 is adapted to the shape formed by the cam 4 rotating one circle.

[0034] Specifically, first, the limiting plate 2 507 and the limiting plate 1 505 are slidably installed in the corresponding card slots to ensure that the filter 1 501 and the filter 2 502 have the purpose of limiting during the movement, prevent the occurrence of deviation in other positions, ensure the stability of the forward and backward movement, and provide a guarantee for the subsequent vibration. Then, the elastic vibration of the spring column 508 and the elastic vibration of the spring 509 are used to make the surfaces of the filter 1 501 and the filter 2 502 vibrate in stages, thereby shaking off some particles blocked in the gap and improving its ventilation performance. Moreover, the buffer pad 506 can be used to make the filter 2 502 buffer the collision side inside the sliding groove 104 when vibrating, thereby improving the service life of the device. Finally, the circular shape of the circular groove 103 is used to ensure the normal rotation of the cam 4, so that it can provide the filter 1 501 with a staged ejection force to ensure its vibration.

[0035] An embedding groove 101 is provided on the inner side of the front face of the box body 1, and a cleaning plate 6 is slidably installed inside the embedding groove 101. A cleaning pad 601 is fixedly adhered to the bottom of the cleaning plate 6, and connecting rods 602 are fixedly installed on the left and right sides of the cleaning plate 6. The bottom end of the cleaning plate 6 is fitted with a partition 8 through the cleaning pad 601. A square groove is provided in the middle of the partition 8, and a guide rod 801 is fixedly installed inside the square groove. A discharge chute 802 is provided on the surface of the partition 8 and close to one end of the inner wall of the front face of the box body 1. One end of the connecting rod 602 is fixedly connected to the outer surface of the synchronization rod 504, and the guide rod 801 is movably sleeved on the spring 509 and the inside of the convex plate. The size of the square groove matches the size of the convex plate, and the partition 8 is fixedly installed on the inner surface of the box body 1;

[0036] Specifically, the cleaning pad 601 is attached to the surface of the discharge chute 802 to sweep away the particles, making it easier for the particles to fall into the collection position. The connecting rod 602 is used to link the cleaning pad 601 with the filter mechanism 5. When the filter mechanism 5 moves backward, the cleaning plate 6 is driven to move to clear the discharge chute 802, further preventing blockage and improving the practicality of the overall device.

[0037] An exhaust fan 7 is fixedly installed on the side of the partition 8, and a swing arm device 9 is provided on the outer surface of the filter screen 2 502.

[0038] It should be noted that the relevant structures and working principles of the swing arm device 9 and the exhaust fan 7 in this utility model are the same as the same components inside the efficient dust removal device in a coal mine with patent publication number CN220748331U, so the functions are consistent and will not be described in detail in this utility model.

[0039] The working principle of this utility model is: Figure 3For the straight view, the motor 3 is started to drive the cam 4 to rotate. When the farthest end of the cam 4 rotates to the inside of the sliding groove 104, the limit plate 1 505 is driven to make the entire filter 1 501 and the filter 2 502 at the leftmost position inside the box 1. The corresponding spring column 508 and the spring 509 are both in a stretched state. When the position of the cam 4 changes, the spring column 508 and the spring 509 are reset to drive the filter 1 501 and the filter 2 502 to move right and reset. Then, the spring's own characteristics are used to vibrate and shake off the particles at the filter holes.

[0040] When filter screen 1 501 and filter screen 2 502 move to the right, the synchronization rod 504 drives the cleaning plate 6 as a whole to move to the right through the connecting rod 602, and then the cleaning pad 601 is attached to the surface of the discharge chute 802 to sweep the shaken particles to the collection area inside the box 1. When there are a lot of particles accumulated inside, the start of the entire equipment is stopped at this time, and the bottom plate at the bottom of the box 1 is opened. The staff will remove the particles accumulated in the collection area inside the box 1 as a whole. After removal, the entire equipment will be restarted to continue ventilation.

[0041] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A high-efficiency ventilation device for underground coal mines, comprising a housing (1), characterized in that: The front of the box (1) is provided with a ventilation hole (2), the top of the box (1) is fixedly mounted with a motor (3), the bottom of the box (1) is detachably mounted with a bottom plate, the output shaft of the motor (3) is fixedly sleeved with a cam (4), a filter mechanism (5) is movably mounted inside the ventilation hole (2), the filter mechanism (5) comprises a filter screen 1 (501) and a filter screen 2 (502), the bottoms of the filter screen 1 (501) and the filter screen 2 (502) are both fixedly mounted with a material discharging inclined plate (503), the filter screen 1 (501) and the filter screen 2 (502) are ... sleeved with a cam (4), a filter mechanism (5) is movably mounted inside the ventilation hole (2), the filter mechanism (5) comprises a filter screen 1 (501) and a filter screen 2 (502), the filter screen 1 (501) and the filter screen 2 (502) are fixedly mounted with a material discharging inclined plate (503), the filter screen 1 (501) and the filter screen 2 (502) are fixedly mounted with a material discharging inclined plate (503), the filter screen 1 (501) and the filter screen 2 (502) are fixedly sleeved with a cam (4), a filter mechanism (5) is The four corners of the filter screen (502) are fixedly connected with synchronization rods (504), the top of the filter screen (502) is fixedly installed with a limit plate (505), the inner side of the limit plate (505) is fixedly installed with a buffer pad (506), the left and right sides of the filter screen (502) are fixedly installed with limit plates (507), the inner side of the limit plate (507) is movably sleeved with a spring column (508), the bottom end of the discharge inclined plate (503) at the bottom of the filter screen (502) is integrally formed with a convex plate, and the inner side of the convex plate is fixedly connected with a spring (509); An embedding groove (101) is provided on the inner side of the front surface of the box body (1), a cleaning plate (6) is slidably installed inside the embedding groove (101), a cleaning pad (601) is fixedly adhered to the bottom of the cleaning plate (6), and connecting rods (602) are fixedly installed on both the left and right sides of the cleaning plate (6); The bottom end of the cleaning plate (6) is attached to a partition (8) via a cleaning pad (601), a square groove is provided in the middle of the partition (8), a guide rod (801) is fixedly installed inside the square groove, and a discharge groove (802) is provided on the surface of the partition (8) and at one end close to the front inner wall of the box body (1).

2. The high-efficiency ventilation device for underground coal mines according to claim 1, characterized in that: The left and right sides of the box body (1) are both provided with a second sliding groove (102), the top of the box body (1) is provided with a first sliding groove (104), the second limiting plate (507) is slidably installed inside the second sliding groove (102), and the first limiting plate (505) is slidably installed inside the first sliding groove (104).

3. The high-efficiency ventilation device for underground coal mines according to claim 1, characterized in that: One end of the connecting rod (602) is fixedly connected to the outer surface of the synchronization rod (504).

4. The high-efficiency ventilation device for underground coal mines according to claim 1, characterized in that: A circular groove (103) is provided on the inner side of the box body (1) on the right side of the sliding groove (104). The shape of the circular groove (103) matches the shape formed by the cam (4) rotating one circle.

5. The high-efficiency ventilation device for underground coal mines according to claim 1, characterized in that: The guide rod (801) is movably sleeved on the spring (509) and the interior of the convex plate, and the size of the square groove is adapted to the size of the convex plate.

6. The high-efficiency ventilation device for underground coal mines according to claim 1, characterized in that: The partition (8) is fixedly mounted on the inner surface of the box body (1).

7. The high-efficiency ventilation device for underground coal mines according to claim 1, characterized in that: An exhaust fan (7) is fixedly mounted on the side of the partition (8), and a swing arm device (9) is provided on the outer surface of the second filter screen (502).

Images