Ventilation, dust removal and purification equipment for coal mine driving working face

Abstract

The invention discloses ventilation, dust removal and purification equipment for a coal mine driving working face, and belongs to the technical field of coal mine ventilation and dust removal. The ventilation, dust removal and purification equipment comprises a purification box, a horizontally-arranged partition plate is arranged in the purification box, and the interior of the purification box is divided into a purification cavity and a dust collection cavity through the partition plate; a gas inlet pipeline and a gas outlet pipeline are arranged at the two ends of the purification box respectively, and a separation cavity is formed in the purification box; a dust removal and purification assembly is rotationally connected to the middle position of the partition plate, a rotation driving assembly for driving the dust removal and purification assembly to rotate is arranged on the dust removal and purification assembly, and the rotation driving assembly is rotationally connected with the purification box and located in the partition cavity; a first scraping assembly and a second scraping assembly which are used for scraping the dust removal and purification assembly are arranged at the two ends of the dust collection cavity correspondingly, an air blowing and dust removal assembly for removing dust of the dust removal and purification assembly is arranged in the dust collection cavity, and a hinged movable door is arranged at the bottom of the purification box. According to the dust removal device, dust on the filtering dust removal plate can be comprehensively removed.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mine ventilation and dust removal, and in particular relates to ventilation and dust removal purification equipment for a coal mine excavation working face. Background Art

[0002] Coal mine excavation is a key link in coal mining, but in the process of excavation, operations such as drilling, blasting, and cutting by multi-purpose excavators will generate a lot of dust. These dusts mainly include coal dust and rock dust. Coal dust is flammable. When it reaches a certain concentration, it may cause an explosion accident, posing a huge threat to mine safety. For example, many coal mine dust explosions have occurred in history, causing serious casualties and property losses. Therefore, in the daily production process of the mining face, ventilation and dust removal devices are needed to remove dust and filter the air. Common measures include ventilation and dust removal, coal seam water injection, and spray dust reduction.

[0003] However, the existing ventilation dust removal and purification equipment cannot comprehensively clean the dust removal filter plates during the dust removal process, resulting in the filter plates being blocked by a large amount of dust after working for a period of time. A large amount of dust will directly pass through the filter plates with the air, resulting in the exhaust air still containing a high concentration of dust, and the expected dust removal effect cannot be achieved. Summary of the invention

[0004] The embodiment of the present invention provides a ventilation, dust removal and purification device for a coal mine excavation working face to solve the problems in the prior art.

[0005] The embodiment of the present invention adopts the following technical scheme: a ventilation and dust removal purification equipment for a coal mine excavation working face, comprising a purification box, a horizontally arranged partition is provided inside the purification box, the partition divides the purification box into a purification chamber and a dust collecting chamber, and a suspended suspension frame is provided on the top of the purification box; an air inlet duct and an air outlet duct are respectively provided at both ends of the purification box, and a partition chamber is provided in the purification box; a rotatably connected dust removal and purification component is provided at the middle position of the partition, and a rotating drive component for driving the dust removal and purification component to rotate is provided on the dust removal and purification component, and the rotating drive component is rotatably connected to the purification box and is located in the partition chamber; a first scraping component and a second scraping component for scraping the dust removal and purification component are respectively provided at both ends of the dust collecting chamber, and an air blowing dust removal component is provided in the dust collecting chamber to remove dust from the dust removal and purification component, and a hinged movable door is provided at the bottom of the purification box.

[0006] Furthermore, the dust removal and purification assembly includes a rotating shaft and four filtering dust removal plates. The rotating shaft is horizontally connected to the partition and extends into the partition cavity. The four filtering dust removal plates are arranged on the rotating shaft at equal intervals.

[0007] Furthermore, the rotary drive assembly includes a driving motor, a driving gear, a rotating gear, a rotating disk and a driving plate. The driving motor is located on the outer wall of the purification box, the driving gear is located on the main shaft of the driving motor and is located in the compartment, the rotating gear is rotatably connected to the inner wall of the compartment and meshes with the driving gear, the middle position of the driving plate is connected to the rotating gear, one end of the driving plate is provided with a rotating shaft, the other end of the driving plate is provided with an arc plate, the rotating disk is fixedly connected to the rotating shaft, and the rotating disk is provided with four equally spaced slide seats and arc seats. During the rotation process, the rotating shaft slides in the slide seat, and the arc plate slides on the arc seat.

[0008] Furthermore, the first scraping assembly and the second scraping assembly have the same structure and are symmetrically arranged. The first scraping assembly and the second scraping assembly respectively perform scraping work on both ends of the filter dust removal plate.

[0009] Furthermore, the first scraping assembly and the second scraping assembly each include a scraping frame, a moving gear, a moving motor, a moving tooth plate and two slides, the two slides are symmetrically arranged on the side walls of the dust collecting chamber, the two ends of the scraping frame are slidably connected to the two slides, the moving tooth plate is horizontally connected to the scraping frame, the moving motor is located on the outer wall of the purification box and the moving gear is connected to the main shaft of the moving motor, and the moving gear is meshed with the moving tooth plate.

[0010] Furthermore, the scraping frame is provided with a movable electric cylinder, the telescopic end of the movable electric cylinder is provided with a scraping plate, and the scraping plate is provided with two sliding rods that slidably cooperate with the scraping plate.

[0011] Furthermore, the air blowing dust removal assembly includes an installation frame, a lifting motor, a lifting screw, a lifting frame and two swinging parts. The installation frame is vertically arranged in the dust collecting chamber, and a lifting slot is provided in the installation frame. The lifting motor is located in the installation frame, and the vertical rotation of the lifting screw is connected in the lifting slot and connected to the main shaft of the lifting motor. The lifting frame is slidably connected in the lifting slot and the lifting frame is threadedly connected to the lifting screw, and the two swinging parts are symmetrically arranged at both ends of the lifting frame.

[0012] Furthermore, each of the swinging parts includes a swinging motor, a swinging frame, an air outlet pipe and a plurality of high-pressure air outlet nozzles. The swinging motor is located in the lifting frame, the swinging frame is rotatably connected in the lifting frame and is transmission-connected to the swinging motor, and the plurality of high-pressure air outlet nozzles are equidistantly arranged on the swinging frame, and the air outlet pipe is connected to the plurality of high-pressure air outlet nozzles.

[0013] At least one of the above technical solutions adopted in the embodiments of the present invention can achieve the following beneficial effects:

[0014] First, when the present invention scrapes the dust on the filter dust removal plate, the mobile motor drives the mobile gear to rotate on the mobile tooth plate, thereby driving the position of the scraping frame to move back and forth on the two slides, which can drive the scraping plate to scrape the dust on the filter dust removal plate, and can quickly remove a large amount of dust accumulated on the surface of the filter dust removal plate. Direct cleaning may cause the cleaning process to be cumbersome and time-consuming due to excessive dust. By scraping, most of the dust can be removed from the surface of the filter dust removal plate, just like using a shovel to remove snow. First, shovel away a thick layer of snow, and subsequent cleaning will be easier and more efficient; it can restore some of the ventilation performance of the filter dust removal plate in a short time, because the scraping process can quickly open the blocked filter holes, allowing air to pass through the filter dust removal plate more smoothly, thereby ensuring that the dust removal equipment can still maintain a certain working efficiency during the cleaning process.

[0015] Secondly, when the present invention uses blowing gas to remove dust from the filter dust removal plate, the lifting motor drives the lifting screw to move up and down in the lifting slot, which can drive the position of the lifting frame to move up and down, and blow away the dust at different positions on the filter dust removal plate. When blowing, the swing motor can drive the position of the swing frame to swing continuously on the lifting frame, thereby driving the positions of several high-pressure air outlet nozzles to swing. When the position of the high-pressure air outlet nozzle swings, different areas of the filter dust removal plate can be comprehensively jet cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 The three-dimensional structure of the present invention is cut away Figure 1 ;

[0019] Figure 3 The three-dimensional structure of the present invention is cut away Figure 2 ;

[0020] Figure 4 This is a three-dimensional structural exploded view of the rotary drive assembly in the present invention;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the first scraping component and the second scraping component in the present invention;

[0022] Figure 6 The three-dimensional structure of the air blowing dust removal component in the present invention is shown in FIG. Figure 1 ;

[0023] Figure 7 The three-dimensional structure of the air blowing dust removal component in the present invention is shown in FIG. Figure 2 ;

[0024] Reference numerals:

[0025] Purification box 1, partition 10, purification chamber 11, dust collection chamber 12, suspension frame 13, air inlet duct 14, air outlet duct 15, partition 16, movable door 17, dust removal and purification component 2, rotating shaft 20, filter dust plate 21, rotary drive component 3, drive motor 30, drive gear 31, rotating gear 32, rotating disk 33, drive plate 34, rotating shaft 35, arc plate 36, slide slot seat 37, arc seat 38, first scraping component 4 , the second scraping component 5, the scraping frame 450, the moving gear 451, the moving motor 452, the moving tooth plate 453, the slide 454, the moving electric cylinder 455, the scraping plate 456, the slide bar 457, the air blowing and dust removal component 6, the mounting frame 61, the lifting motor 62, the lifting screw 63, the lifting frame 64, the lifting slot 611, the swinging part 65, the swinging motor 651, the swinging frame 652, the air outlet pipe 653, and the high-pressure air outlet nozzle 654. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. 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 making creative work are within the scope of protection of the present invention.

[0027] The following describes in detail a technical solution for ventilation and dust removal and purification equipment for a coal mine excavation working face according to various embodiments of the present invention in conjunction with the accompanying drawings.

[0028] Reference Figures 1 to 7As shown, an embodiment of the present invention provides a ventilation dust removal and purification device for a coal mine excavation working face, comprising a purification box 1, wherein a horizontally arranged partition 10 is provided inside the purification box 1, wherein the partition 10 divides the purification box 1 into a purification chamber 11 and a dust collecting chamber 12, and a suspended suspension frame 13 is provided on the top of the purification box 1; an air inlet duct 14 and an air outlet duct 15 are provided at both ends of the purification box 1, respectively, and a partition chamber 16 is provided in the purification box 1; a rotatably connected dust removal and purification component 2 is provided at the middle position of the partition 10, and a rotating drive component 3 for driving the dust removal and purification component 2 to rotate is provided on the dust removal and purification component 2, and the rotating drive component 3 is rotatably connected to the purification box 1 and is located in the partition chamber 16; a first scraping component 4 and a second scraping component 5 for scraping the dust removal and purification component 2 are provided at both ends of the dust collecting chamber 12, respectively, and an air blowing dust removal component 6 for removing dust from the dust removal and purification component 2 is provided in the dust collecting chamber 12, and a hinged movable door 17 is provided at the bottom of the purification box 1.

[0029] During the dust removal process, the air inlet duct 14 transports the gas into the purification chamber 11, and the dust removal and purification component 2 purifies the gas in the gas, and then the gas is discharged through the air outlet duct 15. The dust collection chamber 12 can collect the dust scraped and blown out of the dust removal and purification component 2, and the dust can be discharged outward by opening the hinged movable door 17;

[0030] The ventilation dust removal and purification equipment for coal mine excavation working face of the present invention ensures the smooth guidance of airflow through the carefully designed air inlet duct 14 and air outlet duct 15, avoiding the airflow turbulence in the purification box 1. At the same time, the partition 10 effectively separates the purification box into the purification chamber 11 and the dust collecting chamber 12, realizing the uniform distribution of airflow, thereby improving the overall purification effect of the dust removal and purification component 2. The dust removal and purification component 2 rotates under the drive of the rotary drive component 3, which not only increases the contact area between the filter dust removal plate and the airflow, but also avoids the clogging of the filter plate through the intermittent rotation design, maintaining a stable dust removal efficiency. The double-sided scraping of the first scraping component 4 and the second scraping component 5 and the auxiliary blowing effect of the air blowing dust removal component 6 further enhance the dust collection effect. The suspension design of the suspension frame 13 makes the equipment easy to install and disassemble, and the hinged movable door 17 facilitates the rapid discharge of dust in the dust collecting chamber 12, simplifying the maintenance and cleaning process. The partition chamber 16 isolates the rotary drive assembly 3 from the purification chamber 11 and the dust collection chamber 12, thereby avoiding the wear of the rotary drive assembly by dust. At the same time, the rotating connection design ensures the smoothness of the rotation, reduces the vibration and noise of the equipment, and enhances the stability of the equipment. The compact internal structure realizes the miniaturization of the equipment, saves the installation space, and adapts to the limited space conditions of the coal mine excavation working face. In addition, the overall dust-proof design of the equipment reduces the pollution of the mine environment by dust, reduces the risk of dust explosion, and improves the safety of the mine. In summary, the present invention has shown significant beneficial effects in optimizing airflow distribution, improving dust removal effect, strengthening dust collection, facilitating maintenance and cleaning, enhancing equipment stability, saving space and improving safety, etc., and provides an efficient, reliable and safe solution for dust control at the coal mine excavation working face.

[0031] It should be noted that an air intake pump is provided on the air intake pipe 14 to transport gas into the purification box 1, and an air outlet pump is provided on the air outlet pipe 15 to discharge gas to the outside. The two suspension frames 13 can rotate the purification box 1 to the position of coal mine excavation.

[0032] Specifically, the dust removal and purification assembly 2 includes a rotating shaft 20 and four dust filter plates 21. The rotating shaft 20 is horizontally connected to the partition 10 and extends into the compartment 16. The four dust filter plates 21 are arranged at equal intervals on the rotating shaft 20. Each dust filter plate 21 is arranged at a 90-degree interval.

[0033] During the dust removal process, the filter dust removal plate 21 located in the purification chamber 11 purifies the dust in the gas. During the dust removal process, the rotating drive component 3 can drive the rotating shaft 20 to rotate, thereby driving the position of another filter dust removal plate 21 on the rotating shaft 20 to rotate, so as to scrape and shake the dust accumulated on the other filter dust removal plate 21, so as to obtain a clean filter dust removal plate 21 for use.

[0034] Specifically, the horizontal connection design between the rotating shaft 20 of the dust removal and purification component 2 and the partition 10 ensures the stable operation of the component in the purification chamber 11, and the setting that the rotating shaft 20 extends into the partition 16 cleverly utilizes the space, realizes the direct connection between the rotary drive component 3 and the dust removal and purification component 2, and reduces the loss of energy transfer. Four filter dust removal plates 21 are arranged on the rotating shaft 20 at equal intervals and at ninety-degree intervals. This layout not only maximizes the filtering area, but also ensures that during the rotation process, each filter dust removal plate 21 can be evenly affected by the airflow, thereby improving the dust removal efficiency.

[0035] During the dust removal process, the filter dust removal plate 21 in the purification chamber 11 efficiently purifies the dust in the gas, and the rotary drive assembly 3 drives the rotation of the rotating shaft 20, which not only realizes the periodic replacement of the filter dust removal plate 21, but also effectively removes the dust attached to the filter dust removal plate 21 through scraping and shaking actions, ensuring that each filter dust removal plate 21 can be kept clean before being put into use again, thereby maintaining a stable dust removal effect.

[0036] In addition, this design also reduces the risk of clogging of the filter dust removal plate 21, prolongs the service life of the component, and reduces the maintenance frequency. At the same time, the precise control of the rotary drive component 3 makes the rotation of the rotating shaft 20 smooth and low-noise, further improving the operating stability of the equipment. Overall, the design of the dust removal and purification component 2 not only reflects the ingenious application of mechanical principles, but also achieves a comprehensive improvement in dust removal efficiency, equipment stability and maintenance convenience, providing efficient and reliable guarantees for dust control at the coal mine excavation working face.

[0037] Specifically, the rotary drive assembly 3 includes a drive motor 30, a drive gear 31, a rotating gear 32, a rotating disk 33 and a drive plate 34. The drive motor 30 is located on the outer wall of the purification box 1, the drive gear 31 is located on the main shaft of the drive motor 30 and is located in the compartment 16, the rotating gear 32 is rotatably connected to the inner wall of the compartment 16 and meshes with the drive gear 31, the middle position of the drive plate 34 is connected to the rotating gear 32, one end of the drive plate 34 is provided with a rotating shaft 35, and the other end of the drive plate 34 is provided with an arc plate 36, the rotating disk 33 is fixedly connected to the rotating shaft 20, and the rotating disk 33 is provided with four equally spaced slide seats 37 and arc seats 38. During the rotation process, the rotating shaft 35 slides in the slide seat 37, and the arc plate 36 slides on the arc seat 38.

[0038] When the positions of the four filter dust removal plates 21 are intermittently rotated, the driving motor 30 drives the driving gear 31 to rotate, thereby driving the rotating gear 32 to rotate, and the rotation of the rotating gear 32 will drive the driving plate 34 to rotate, and the driving plate 34 rotates so that the rotating shaft 35 rotates in the corresponding sliding groove seat 37, and the arc plate 36 rotates on the arc seat 38, and the rotating shaft 35 on the driving plate 34 rotates in the sliding groove seat 37, which will drive the position of the driving disk to rotate ninety degrees, so that the driving disk drives the rotating shaft 20 to rotate ninety degrees. During use, the position of the filter dust removal plate 21 can be driven to rotate ninety degrees each time, so that the dust-cleaned filter dust removal plate 21 is rotated into the purification chamber 11 to perform dust removal and purification operations on the gas. When dust on the filter dust removal plate 21 is removed, the driving motor 30 can also drive the filter dust removal plate 21 to rotate ninety degrees in the opposite direction, so as to perform dust removal operations on both sides of the filter dust removal plate 21.

[0039] The order for dust removal on the filter dust removal plate 21 is to first scrape the dust on one side of the filter dust removal plate 21 through the first scraping component 4, then rotate the filter dust removal plate 21 180 degrees, and scrape the dust on the other side of the filter dust removal plate 21 through the second scraping component 5, and then rotate the filter dust removal plate 21 in the opposite direction by ninety degrees to the position of the air blowing dust removal component 6, and use the air blowing dust removal component 6 to comprehensively remove the dust in the middle of the filter dust removal plate 21.

[0040] Specifically, the precise matching of the driving motor 30, the driving gear 31, the rotating gear 32, the rotating disk 33 and the driving plate 34 of the rotating driving assembly 3 constitutes an efficient and stable rotating driving system. The driving motor 30 is located on the outer wall of the purification box 1. This layout is convenient for maintenance and heat dissipation, and at the same time avoids the influence of internal dust on the motor. The meshing design of the driving gear 31 and the rotating gear 32 ensures the stability and efficiency of power transmission, and the rotating connection mode of the rotating gear 32 further reduces energy loss.

[0041] The middle position of the driving plate 34 is connected to the rotating gear 32, and the rotating shaft 35 and the arc plate 36 at both ends thereof are designed to achieve precise matching with the slide seat 37 and the arc seat 38 on the rotating disk 33. During the rotation process, the rotating shaft 35 slides in the slide seat 37, and the arc plate 36 slides on the arc seat 38. This design not only ensures the stable rotation of the rotating disk 33, but also realizes the precise position control of the filter dust removal plate 21.

[0042] When the positions of the four filter dust removal plates 21 are intermittently rotated, the operation of the drive motor 30 drives the efficient operation of the entire rotary drive system. Each time the position of the filter dust removal plate 21 rotates 90 degrees, not only the timely replacement of the clean filter dust removal plate 21 is achieved, but also the continuous and efficient dust removal in the purification chamber 11 is ensured. At the same time, the design that the drive motor 30 drives the filter dust removal plate 21 to rotate 90 degrees in the opposite direction allows both sides of the filter dust removal plate 21 to be effectively dusted, thereby improving the comprehensiveness and thoroughness of dust removal.

[0043] When dusting the filter dust removal plate 21, the first scraping component 4, the second scraping component 5 and the air-blowing dust removal component 6 cooperate in sequence to achieve all-round and multi-level dust removal of the filter dust removal plate 21. First, one side of the filter dust removal plate 21 is scraped by the first scraping component 4, then it is rotated 180 degrees, and the other side is scraped by the second scraping component 5, and finally it is reversely rotated 90 degrees to the position of the air-blowing dust removal component 6 to perform comprehensive dust removal. This sequential design not only improves the dust removal efficiency, but also ensures the cleanliness of the filter dust removal plate 21 and extends its service life.

[0044] In general, the design of the rotary drive assembly 3 fully reflects the ingenious application of mechanical principles, realizes efficient, stable and precise power transmission, and provides reliable and efficient guarantee for dust control at the coal mine excavation working face. At the same time, the cooperation with the first scraping assembly 4, the second scraping assembly 5 and the air blowing dust removal assembly 6 further improves the comprehensiveness and thoroughness of dust removal, providing strong support for the safe production of the mine.

[0045] Specifically, the first scraping assembly 4 and the second scraping assembly 5 have the same structure and are symmetrically arranged. The first scraping assembly 4 and the second scraping assembly 5 respectively scrape the two ends of the filter dust removal plate 21.

[0046] Specifically, the first scraping assembly 4 and the second scraping assembly 5 each include a scraping frame 450, a moving gear 451, a moving motor 452, a moving tooth plate 453 and two slides 454, the two slides 454 are symmetrically arranged on the side walls of the dust collecting chamber 12, the two ends of the scraping frame 450 are slidably connected to the two slides 454, the moving tooth plate 453 is horizontally connected to the scraping frame 450, the moving motor 452 is located on the outer wall of the purification box 1 and the moving gear 451 is connected to the main shaft of the moving motor 452, and the moving gear 451 is meshed with the moving tooth plate 453.

[0047] Specifically, the scraping frame 450 is provided with a movable electric cylinder 455 , a scraping plate 456 is provided on the telescopic end of the movable electric cylinder 455 , and the scraping plate 456 is provided with two sliding rods 457 that slidably cooperate with the scraping plate 456 .

[0048] When scraping the dust on the filter dust plate 21, the moving motor 452 drives the moving gear 451 to rotate on the moving tooth plate 453, thereby driving the position of the scraping frame 450 to move back and forth on the two slides 454, and then driving the scraping plate 456 to scrape the dust on the filter dust plate 21, which can quickly remove a large amount of dust accumulated on the surface of the filter dust plate 21. Direct cleaning may cause the cleaning process to be cumbersome and time-consuming due to the excessive amount of dust. By scraping, most of the dust can be removed from the surface of the filter dust plate 21, just like using a shovel to remove snow. First, shovel away the thick layer of snow, and subsequent cleaning will be easier and more efficient; it can restore some of the ventilation performance of the filter dust plate 21 in a short time, because the scraping process can quickly open the blocked filter holes, allowing air to pass through the filter dust plate 21 more smoothly, thereby ensuring that the dust removal equipment can still maintain a certain working efficiency during the cleaning process;

[0049] Scraping off dust can reduce the physical wear of dust on the filter dust removal plate 21. If gas blowing or other methods are directly used, a large number of dust particles may continuously rub the surface of the filter dust removal plate 21 under the action of the gas cleaning medium during the contact with the filter dust removal plate 21, causing damage to the fiber structure of the filter dust removal plate 21. Pre-scraping off dust can avoid this situation, just like shaking off dust before washing clothes, reducing damage to clothing fibers during subsequent washing, thereby extending the service life of the filter dust removal plate 21.

[0050] In the process of scraping off the dust, the scraping plate 456 can be driven by the moving electric cylinder 455 to move on the scraping frame 450 through two sliding rods 457, thereby changing the distance between the scraping plate 456 and the filter dust removal plate 21. When the distance between the scraping plate 456 and the filter dust removal plate 21 is adjusted appropriately, the dust on the filter dust removal plate 21 can be more effectively removed; if the distance is too large, the scraping plate 456 may not be able to fully contact the dust on the surface of the filter dust removal plate 21, resulting in incomplete scraping; when the distance is reduced to a suitable range, such as a few millimeters, the scraping plate 456 can fit the filter dust removal plate 21 more closely, completely scrape off the dust and improve the scraping efficiency; correctly adjusting the distance can prevent the scraping plate 456 from causing excessive damage to the filter dust removal plate 21. If the spacing is too small, the scraper plate 456 may over-squeeze the filter dust removal plate 21, especially for some filter dust removal plates 21 made of softer materials, which may scratch or damage the filter structure of the filter dust removal plate 21, so the filter dust removal plate 21 can be protected.

[0051] Specifically, the symmetrical arrangement and identical structure of the first scraping assembly 4 and the second scraping assembly 5 ensure the balance and consistency of the dust scraping at both ends of the filter dust removal plate 21, and avoid the problem of uneven dust removal due to structural differences. The scraping frame 450 is designed to be flexibly moved in the dust collecting chamber 12 through the sliding connection of the slide 454, and the meshing of the moving gear 451 and the moving tooth plate 453 ensures the efficient transmission of the driving force of the moving motor 452.

[0052] When the dust on the filter dust removal plate 21 is scraped off, the moving motor 452 drives the moving gear 451 to rotate, thereby driving the scraping frame 450 to move back and forth on the slide 454. This process drives the scraping plate 456 to effectively scrape off the dust on the surface of the filter dust removal plate 21. This design is similar to using a shovel to clear snow, first removing a large amount of accumulated dust, simplifying the subsequent cleaning steps and improving the dust removal efficiency.

[0053] The process of scraping off dust not only quickly restores part of the ventilation performance of the filter dust removal plate 21, but also ensures the smooth passage of air by opening the blocked filter holes, maintains the working efficiency of the dust removal equipment during the cleaning process, and significantly reduces the physical wear of the dust on the filter dust removal plate 21. Pre-scraping dust is similar to shaking off dust before washing clothes, which avoids the damage of a large number of dust particles to the fiber structure of the filter dust removal plate 21 under the action of the gas cleaning medium, thereby extending its service life.

[0054] In addition, by moving the electric cylinder 455, the scraper plate 456 is driven to move on the slide bar 457, so as to realize the flexible adjustment of the distance between the scraper plate and the filter dust removal plate 21. This design enables the scraper plate to fit the filter dust removal plate 21 more closely, ensuring the thorough scraping of dust, while avoiding the damage of the filter dust removal plate 21 caused by improper spacing. Correctly adjusting the spacing not only improves the scraping efficiency, but also realizes the effective protection of the filter dust removal plate 21, especially for the filter dust removal plate 21 with softer material, to prevent its filtering structure from being scratched or damaged.

[0055] In general, the design of the first scraping component 4 and the second scraping component 5 combines the precise control of mechanical principles with the efficient realization of dust removal requirements, which not only improves the dust removal effect, but also optimizes the equipment maintenance process, providing a more reliable, efficient and durable solution for dust control in coal mine excavation working faces.

[0056] Specifically, the air blowing dust removal assembly 6 includes a mounting frame 61, a lifting motor 62, a lifting screw 63, a lifting frame 64 and two swinging members 65. The mounting frame 61 is vertically arranged in the dust collecting chamber 12. A lifting slot 611 is arranged in the mounting frame 61. The lifting motor 62 is located in the mounting frame 61. The lifting screw 63 is vertically connected in the lifting slot 611 and connected to the main shaft of the lifting motor 62. The lifting frame 64 is slidably connected in the lifting slot 611 and the lifting frame 64 is threaded with the lifting screw 63. The two swing members 65 are symmetrically arranged at both ends of the lifting frame 64; each of the swing members 65 includes a swing motor 651, a swing frame 652, an air outlet pipe 653 and a plurality of high-pressure air outlet nozzles 654, the swing motor 651 is located in the lifting frame 64, the swing frame 652 is rotatably connected in the lifting frame 64 and is transmission-connected to the swing motor 651, a plurality of high-pressure air outlet nozzles 654 are equidistantly arranged on the swing frame 652, and the air outlet pipe 653 is connected to a plurality of high-pressure air outlet nozzles 654.

[0057] When the filter dust removal plate 21 is dusted by blowing gas, the lifting motor 62 drives the lifting screw 63 to move up and down in the lifting slot 611, which can drive the position of the lifting frame 64 to move up and down, and blow the dust at different positions on the filter dust removal plate 21. When blowing, the swing motor 651 drives the position of the swing frame 652 to swing continuously on the lifting frame 64, thereby driving the positions of several high-pressure air outlet nozzles 654 to swing. When the position of the high-pressure air outlet nozzle 654 swings, it can perform comprehensive jet cleaning on different areas of the filter dust removal plate 21. On the filter dust removal plate 21, the dust distribution may not be uniform, and the corners and edges are often more likely to accumulate dust. Through swinging, high-pressure gas can cover these areas that are usually difficult to reach; high-pressure gas is ejected from the swinging nozzle, which can produce a stronger impact force. This impact force can more effectively peel dust from the surface of the filter dust removal plate 21 when switching at different angles. Compared with the fixed jet method, the swinging nozzle makes the dust receive forces from multiple directions, just like shaking a tree from different directions to shake off leaves, so that the dust is more likely to be separated from the fiber gap or adsorption position of the filter dust removal plate 21, thereby improving the dust removal efficiency; when the nozzle is stationary, the blown dust may be re-adsorbed on the filter dust removal plate 21 in the nearby area. The swinging nozzle can blow the blown dust away from the area near the filter dust removal plate 21 in time by changing the jet direction to prevent the dust from attaching again.

[0058] Specifically, the ingenious design of the air blowing dust removal assembly 6 ensures the high efficiency and comprehensiveness of the dust filter plate 21 during the dust removal process. The vertical setting of the mounting frame 61 and the layout in the dust collecting chamber 12 provide a stable space for the operation of the lifting motor 62 and the lifting screw 63. The lifting motor 62 drives the lifting screw 63 to move up and down in the lifting slot 611, thereby driving the position adjustment of the lifting frame 64, and realizing the precise blowing and dust removal of the dust filter plate 21 at different heights.

[0059] During the blowing process, the start of the swing motor 651 causes the swing frame 652 to swing continuously on the lifting frame 64, thereby driving the position change of a plurality of high-pressure air outlet nozzles 654. This design enables the high-pressure air outlet nozzles 654 to perform comprehensive jet cleaning on different areas of the filter dust removal plate 21, especially for the corners and edges where dust is easily accumulated, thus achieving a dust removal effect without dead angles.

[0060] High-pressure gas is ejected from the swinging nozzle, and the strong impact force generated by the switching of different angles more effectively removes dust from the surface of the filter dust removal plate 21. This multi-angle and multi-directional jetting method is similar to shaking a tree from different directions to shake off leaves, making it easier for dust to separate from the fiber gaps or adsorption positions of the filter dust removal plate 21, thereby significantly improving the dust removal efficiency.

[0061] In addition, the swinging nozzle can timely blow away the dust from the vicinity of the filter dust removal plate 21 by changing the jet direction, thereby preventing the dust from reattaching. This design effectively prevents secondary pollution during the dust removal process and ensures the continuous cleaning of the filter dust removal plate 21.

[0062] Overall, the design of the air blowing dust removal component 6 fully integrates the mechanical principles and dust removal needs. Through the combination of lifting and swinging, it realizes comprehensive, efficient and deep cleaning of the filter dust removal plate 21, providing a more reliable and advanced solution for dust control in the coal mine excavation working face.

[0063] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A ventilation and dust removal purification equipment for coal mine excavation working face, characterized in that: The invention comprises a purification box (1), wherein a horizontally arranged partition (10) is provided inside the purification box (1), wherein the partition (10) divides the purification box (1) into a purification chamber (11) and a dust collection chamber (12), and a suspended suspension frame (13) is provided on the top of the purification box (1); an air inlet duct (14) and an air outlet duct (15) are respectively provided at both ends of the purification box (1), and a partition chamber (16) is provided inside the purification box (1); a rotatably connected dust removal and purification component (2) is provided at the middle position of the partition (10), wherein the dust collection ... The dust removal and purification component (2) is provided with a rotating drive component (3) for driving the same to rotate; the rotating drive component (3) is rotatably connected to the purification box (1) and is located in the compartment (16); a first scraping component (4) and a second scraping component (5) for scraping the dust removal and purification component (2) are respectively provided at both ends of the dust collecting chamber (12); an air blowing dust removal component (6) for removing dust from the dust removal and purification component (2) is provided in the dust collecting chamber (12); and a hinged movable door (17) is provided at the bottom of the purification box (1).

2. A coal mine excavation working face ventilation and dust removal purification equipment according to claim 1, characterized in that: The dust removal and purification component (2) comprises a rotating shaft (20) and four filtering dust removal plates (21); the rotating shaft (20) is horizontally connected to the partition (10) and the rotating shaft (20) extends into the compartment (16); the four filtering dust removal plates (21) are arranged on the rotating shaft (20) at equal intervals.

3. A coal mine excavation working face ventilation and dust removal purification equipment according to claim 2, characterized in that: The rotary drive assembly (3) comprises a drive motor (30), a drive gear (31), a rotating gear (32), a rotating disk (33) and a drive plate (34); the drive motor (30) is located on the outer wall of the purification box (1); the drive gear (31) is located on the main shaft of the drive motor (30) and is located in the compartment (16); the rotating gear (32) is rotatably connected to the inner wall of the compartment (16) and meshes with the drive gear (31); the middle position of the drive plate (34) is The driving plate (34) is connected to the rotating gear (32); one end of the driving plate (34) is provided with a rotating shaft (35); the other end of the driving plate (34) is provided with an arc plate (36); the rotating disk (33) is fixedly connected to the rotating shaft (20); four sliding groove seats (37) and arc seats (38) are arranged on the rotating disk (33) at equal intervals; during the rotation process, the rotating shaft (35) slides in the sliding groove seat (37) and the arc plate (36) slides on the arc seat (38).

4. A coal mine excavation working face ventilation and dust removal purification equipment according to claim 2, characterized in that: The first scraping assembly (4) and the second scraping assembly (5) have the same structure and are symmetrically arranged. The first scraping assembly (4) and the second scraping assembly (5) respectively perform scraping work on both ends of the filter dust removal plate (21).

5. A ventilation and dust removal purification equipment for coal mine excavation working face according to claim 4, characterized in that: The first scraping assembly (4) and the second scraping assembly (5) both include a scraping frame (450), a moving gear (451), a moving motor (452), a moving tooth plate (453) and two slideways (454), wherein the two slideways (454) are symmetrically arranged on the side walls of the dust collecting chamber (12), and the two ends of the scraping frame (450) are slidably connected to the two slideways (454), and the moving tooth plate (453) is horizontally connected to the scraping frame (450), and the moving motor (452) is located on the outer wall of the purification box (1) and the moving gear (451) is connected to the main shaft of the moving motor (452), and the moving gear (451) is meshed with the moving tooth plate (453).

6. A coal mine excavation working face ventilation and dust removal purification equipment according to claim 5, characterized in that: The scraping frame (450) is provided with a movable electric cylinder (455), the telescopic end of the movable electric cylinder (455) is provided with a scraping plate (456), and the scraping plate (456) is provided with two sliding rods (457) that are slidably matched with the scraping plate (456).

7. The ventilation and dust removal purification equipment for coal mine excavation working face according to claim 1 is characterized by: The air blowing dust removal assembly (6) comprises a mounting frame (61), a lifting motor (62), a lifting screw rod (63), a lifting frame (64) and two swinging members (65); the mounting frame (61) is vertically arranged in the dust collecting chamber (12); a lifting slot (611) is arranged in the mounting frame (61); the lifting motor (62) is located in the mounting frame (61); the lifting screw rod (63) is vertically rotatably connected in the lifting slot (611) and is connected to the main shaft of the lifting motor (62); the lifting frame (64) is slidably connected in the lifting slot (611) and the lifting frame (64) is threadedly connected to the lifting screw rod (63); and the two swinging members (65) are symmetrically arranged at both ends of the lifting frame (64).

8. A ventilation and dust removal purification equipment for coal mine excavation working face according to claim 7, characterized in that: Each of the swinging members (65) comprises a swinging motor (651), a swinging frame (652), an air outlet pipe (653) and a plurality of high-pressure air outlet nozzles (654); the swinging motor (651) is located in the lifting frame (64); the swinging frame (652) is rotatably connected in the lifting frame (64) and is transmission-connected to the swinging motor (651); a plurality of high-pressure air outlet nozzles (654) are arranged on the swinging frame (652) at equal intervals; and the air outlet pipe (653) is connected to the plurality of high-pressure air outlet nozzles (654).

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