Dust explosion prevention dust removal equipment and dust removal method thereof

Abstract

This invention discloses a dust removal device and method for dust explosion prevention, relating to the field of dust removal equipment. It includes a dust collection box, multiple internal dust collection bags, and a processing mechanism for dust explosion prevention. The processing mechanism consists of a gas mixing component, a scraping component, and a vibration component. The top frame of the filter bags is connected to a vibrating tube frame via the vibration component. The gas mixing component is connected to the dust collection box via an inlet pipe. The gas mixing component mixes the dust-laden gas with an inert gas and initially removes large dust particles. The scraping component is positioned below the gas mixing component and scrapes off the filtered large dust particles. The vibration component periodically vibrates the dust collection bags after the scraping component is removed to remove fine dust adhering to the inner wall. This invention effectively prevents dust explosions by introducing inert gas, ensuring thorough mixing before entering the dust collection box, and filtering out large dust particles.

Description

Technical Field

[0001] This invention relates to the technical field of dust removal equipment, specifically a dust removal device and method for dust explosion prevention. Background Technology

[0002] With industrial development, the risk of dust explosions has increased, seriously threatening production safety and human lives. A dust explosion refers to the rapid combustion of combustible dust under specific conditions when it encounters an ignition source, accompanied by a sharp increase in pressure, resulting in an explosion. Dust explosions occur frequently in industrial fields such as grain processing, chemical processing, and metal processing, requiring scientific prevention measures and strict safety management to ensure safety.

[0003] An explosion-proof dust collector for explosive dust, as described in the prior art, includes a dust collection box, an air inlet pipe fixedly connected to one side of the dust collection box; a heat equalization hopper fixedly connected to the inner wall of the dust collection box; a guide groove is formed on the side wall of the heat equalization hopper; water pipes are fixedly connected to the top and bottom of the heat equalization hopper; both water pipes are connected to an external water pump assembly; a suction box is fixedly connected to the top surface of the dust collection box; the suction box is used to suction the gas inside the dust collection box; and multiple uniformly arranged dust collection bags are installed on the top surface inside the dust collection box.

[0004] While the aforementioned technologies can cool the gas inside the dust collector, thereby reducing the probability of dust explosions and protecting the health and safety of workers, the gas contains larger particles and heavier dust. When this dust enters the dust collector, it may cause significant impact and wear to the dust collection bags and other filter devices, reducing filtration efficiency and equipment lifespan. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a dust removal device and a dust removal method for dust explosion prevention, so as to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A dust collection device for explosion-proof dust removal includes a dust collection box, multiple dust collection bags inside, and a dust explosion-proof treatment mechanism. Each of the multiple dust collection bags has a filter bag top frame screwed onto its top. A filter bag bottom plate is located at the bottom of the multiple dust collection bags within the dust collection box, and the filter bag bottom plate is fixed to the multiple dust collection bags with screws. An air inlet pipe is connected to the bottom of the side wall of the dust collection box. A vibrating tube frame is fixed inside the dust collection box above the filter bag top frames. A pull-out dust collection box is located at the bottom of the inner wall of the dust collection box below the filter bag bottom plates. A sealing door is installed on the outer wall of the dust collection box via hinges.

[0008] The processing mechanism consists of a gas mixing component, a scraping component, and a vibration component. The filter bag top frame is connected to the vibration tube frame through the vibration component. The gas mixing component is connected to the dust collection box through the air inlet pipe. The gas mixing component is used to mix the dust-laden gas with the inert gas and initially remove large dust particles. The scraping component is located below the gas mixing component and scrapes off the filtered large dust particles. The vibration component is used to periodically vibrate the dust collection bag after the scraping component is removed to remove fine dust adhering to the inner wall.

[0009] Specifically, the gas mixing assembly includes a connecting pipe and an inert gas storage box. One end of the connecting pipe is threaded and sealed to the air inlet pipe, and the other end of the connecting pipe is threaded and sealed to a gas guide pipe. The gas guide pipe is connected to the dust conveying pipe. The inert gas storage box is fixed to the outer wall of the dust collector by screws. The upper surface of the end of the connecting pipe near the gas guide pipe is connected to a gas supply pipe. An air supply pump is installed inside the inert gas storage box, and the other end of the air supply pipe passes through the inert gas storage box and is connected to the output port of the air supply pump.

[0010] Specifically, in this technical solution, a shaft is provided at the center of the connecting pipe. A blade is fixed to the outer wall of one end of the shaft near the air supply pipe. A bracket is sleeved on the shaft and fixedly connected to the inner wall of the connecting pipe. A filter plate is fixed to the other end of the shaft. The outer ring wall of the filter plate is in contact with the inner wall of the connecting pipe and is in a sliding connection.

[0011] Specifically, the scraping assembly includes a collection box, the top of which matches the outer wall of the connecting pipe in the gas mixing assembly. The lower surface of the connecting pipe and the top of the collection box are provided with matching openings. A scraper is vertically fixed inside the collection box, and the top of the scraper extends through the opening into the connecting pipe. The scraper contacts the filter plate in the gas mixing assembly.

[0012] A flow guide plate is welded at the opening of the connecting pipe.

[0013] Specifically, in this technical solution, arc-shaped top plates are welded to the top of both outer walls of the collection box, and both arc-shaped top plates are in contact with the outer wall of the connecting pipe. Arc-shaped mounting plates are placed on the outer wall of the upper surface of the connecting pipe at the two arc-shaped top plates, and the two arc-shaped top plates and the arc-shaped mounting plates are fixedly connected by bolts.

[0014] Specifically, in this technical solution, a side plate is fixed to the outer wall of the dust collector on one side of the air inlet pipe. A movable plate is provided on the side of the side plate near the air inlet pipe. A fixed plate is provided below the movable plate. The fixed plate is fixedly connected to the bottom of the outer wall of the side plate. A monitoring block is installed on the upper surface of the fixed plate. A pressure sensor is embedded in the top of the monitoring block. A pressure block is fixed on the lower surface of the movable plate at the monitoring block.

[0015] Specifically, the side plate is provided with a movable groove, a vertical rod is fixed in the movable groove, a movable plate is slidably sleeved on the vertical rod, a support spring is provided on the movable plate and sleeved outside the vertical rod, a section of the movable plate is fixedly connected to the movable plate, and a push plate is welded to the outer wall of the collection box near the dust removal box in the scraping assembly, and the upper surface of the push plate is in contact with the lower surface of the movable plate.

[0016] Specifically, in this technical solution, the vibration component includes a geared motor, the pressure sensor is connected to the geared motor via a wireless controller, the output shaft of the geared motor is fitted with a small cam, the geared motor is mounted on the upper surface of the vibration tube frame by screws, the vibration tube frame is integrally provided with a guide tube, a vertical shaft passes through the guide tube, the bottom end of the vertical shaft is fixedly connected to the top frame of the filter bag, and the protruding part of the small cam contacts the outer wall of the vertical shaft;

[0017] Each of the four corners of the filter bag top frame and the vibrating tube frame is equipped with a lead screw. Each lead screw has a hexagonal nut installed at its bottom and top. Each vibrating tube frame has a return spring located outside the lead screw. The bottom of each return spring is in contact with the upper surface of the vibrating tube frame, and the top of each return spring is in contact with the hexagonal nut.

[0018] Specifically, in this technical solution, a partition is fixed inside the dust collection box on the vibrating tube frame, a fan is installed on the upper surface of the partition, a soundproof air outlet plate is installed at the top of the dust collection box, and ventilation holes are provided on the soundproof air outlet plate.

[0019] Based on the above technical solution, a dust removal method for dust explosion-proof dust removal equipment will also be provided, including the following steps:

[0020] Step 1: Gas mixing. The dust-laden gas to be treated is introduced into the dust collector through the inlet pipe. At the same time, inert gas is released from the inert gas storage box and mixed with it. The mixed gas then passes through the blades, which drive the blades to rotate. This, in turn, drives the filter plate to rotate, ensuring that the dust-laden gas and the inert gas are fully mixed. This effectively reduces the oxygen concentration, and the filter plate performs preliminary filtration, separating larger particles. As the filter plate rotates, the filtered particles are scraped into the collection box by the scraper.

[0021] Step 2: Deep filtration. After the gas has passed the initial filtration, it enters the dust collection box and is drawn upward by the fan. The gas undergoes deep filtration through the dust collection bags. Fine dust is trapped on the inner surface of the dust collection bags, and the clean gas is discharged through the bags by the fan and through the ventilation holes of the soundproof air outlet plate, ensuring that the exhaust gas meets the standards and reducing noise pollution.

[0022] Step 3: Vibration cleaning. When regularly dismantling and cleaning the large dust particles collected in the collection box, tightening the bolts will cause the collection box to move down, the push plate to move down with it, and the movable plate to move down under the elasticity of the support spring, so that the pressure block contacts the monitoring block. The pressure sensor detects the pressure change and sends a signal to the controller.

[0023] The controller starts the geared motor. The output of the geared motor pushes the vertical shaft downward through the small cam. The vertical shaft drives the filter bag top frame, the lead screw, the dust collector bag and the filter bag bottom plate to move downward synchronously. When the lead screw moves downward, the hexagonal nut at the top compresses the return spring. When the protrusion of the small cam leaves the vertical shaft, the return spring quickly springs back, driving the filter bag top frame to return to its original position. Through periodic vibration, the fine dust adhering to the inner wall of the dust collector bag falls off and into the dust collection box.

[0024] In summary, the present invention has the following beneficial effects: by introducing inert gas and blowing the blades to rotate, the filter plate is rotated by the shaft, so that the gas is fully mixed before entering the dust collection box, reducing the oxygen concentration and effectively preventing dust explosion;

[0025] Simultaneously, the rotation of the filter plate achieves preliminary filtration of dust-laden gas, separating larger particles, and scraping these particles into the collection box by the scraper, which significantly reduces the impact and wear of dust in the subsequent gas on the dust collector bag, extends the service life of the dust collector bag, and reduces equipment maintenance costs.

[0026] In addition, when the collection box is disassembled and cleaned regularly, the pressure block can come into contact with the monitoring block, triggering the pressure sensor. The controller then starts the geared motor, which drives the filter bag top frame to vibrate and clean the dust, ensuring that fine dust falls off, improving dust removal efficiency, and ensuring the long-term stable operation of the equipment. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the orthogonal structure of the device of the present invention;

[0028] Figure 2 This is a schematic diagram of the main structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the oblique axonometric structure inside the dust collector of the present invention;

[0030] Figure 4 This is a schematic diagram of the dust collector bag structure of the present invention;

[0031] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0032] Figure 6 This is a schematic diagram of the oblique axonometric structure of the processing mechanism of the present invention;

[0033] Figure 7 This is a schematic diagram of the main structure of the processing mechanism of the present invention;

[0034] Figure 8 This is a schematic diagram of the blade and filter plate structure of the present invention;

[0035] Figure 9 This is a schematic diagram of the side plate structure of the present invention;

[0036] Figure 10 This is a diagram illustrating the method steps of the present invention.

[0037] Attached Figure Descriptions: 1. Dust collector box; 101. Sealed door; 102. Filter bag top frame; 103. Vibrating tube frame; 1031. Guide tube; 104. Partition plate; 1041. Fan; 1042. Soundproof air outlet plate; 105. Filter bag bottom plate; 106. Air inlet pipe; 2. Dust collector bag; 3. Ash collection box; 4. Processing mechanism; 5. Gas mixing assembly; 501. Connecting pipe; 502. Air supply pipe; 503. Inert gas storage box; 5031. Air supply pump; 504. Shaft; 505. Support; 506. Blade; 507. Filter plate; 508. Air guide pipe; 6. Scraper Components include: 601, Collection box; 602, Scraper; 603, Guide plate; 604, Arc-shaped top plate; 605, Arc-shaped mounting plate; 606, Push plate; 7, Vibration assembly; 701, Gear motor; 702, Small cam; 703, Vertical shaft; 705, Lead screw; 7051, Return spring; 7052, Hexagonal nut; 8, Side plate; 801, Moving groove; 8011, Vertical rod; 8012, Support spring; 8013, Moving plate; 802, Movable plate; 8021, Pressure block; 803, Fixed plate; 8031, Monitoring block; 8032, Pressure sensor. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0039] The embodiments of the present invention will now be described.

[0040] In this embodiment, please refer to Figures 1-4As shown, a dust removal device for dust explosion prevention includes a dust collection box 1, multiple dust collection bags 2 inside, and a dust explosion prevention processing mechanism 4. The tops of the multiple dust collection bags 2 are all screwed with filter bag top frames 102. A filter bag bottom plate 105 is provided at the bottom of the multiple dust collection bags 2 in the dust collection box 1. The filter bag bottom plate 105 is fixed to the multiple dust collection bags 2 with screws. An air inlet pipe 106 is connected to the bottom of the side wall of the dust collection box 1. A vibrating tube frame 103 is fixed inside the dust collection box 1 above the filter bag top frames 102. A pull-out dust collection box 3 is provided at the bottom of the inner wall of the dust collection box 1 below the filter bag bottom plate 105. A sealing door 101 is installed on the outer wall of the dust collection box 1 through a hinge.

[0041] The processing unit 4 consists of a gas mixing component 5, a scraping component 6, and a vibration component 7. The filter bag top frame 102 is connected to the vibration tube frame 103 through the vibration component 7. The gas mixing component 5 is connected to the dust collection box 1 through the air inlet pipe 106. The gas mixing component 5 is used to mix the dust-laden gas with the inert gas and initially remove large dust particles. The scraping component 6 is set below the gas mixing component 5 and scrapes off the filtered large dust particles. The vibration component 7 is used to periodically vibrate the dust collection bag 2 after the scraping component 6 is removed to remove the fine dust adhering to the inner wall.

[0042] Inside the dust collector 1, a partition 104 is fixed on the vibrating tube frame 103. A fan 1041 is installed on the upper surface of the partition 104. A soundproof air outlet plate 1042 is installed on the top of the dust collector 1, and ventilation holes are provided on the soundproof air outlet plate 1042.

[0043] When treating dust-laden gas, the dust-laden gas is first mixed with inert gas through gas mixing component 5, and large dust particles are initially removed. Then, under the action of scraping component 6, the separated large dust particles are cleaned and collected. After that, the clean gas enters dust collection box 1, and under the action of fan 1041, it undergoes deep filtration through dust collection bag 2, and fine dust is effectively intercepted. Finally, the purified gas is discharged through soundproof air outlet 1042 to ensure the dust removal effect.

[0044] When the collection box 601 in the scraping component 6 needs to be disassembled and cleaned regularly, the collection box 601 will automatically trigger the vibration component 7 after it is removed, which will vibrate the dust collector bag 2 to clean the fine dust adhering to the inner wall. This fine dust falls into the pull-out dust collection box 3, which is easy to pull out and handle centrally.

[0045] By introducing inert gas and mixing it with the dust-laden gas, the gas is ensured to be uniformly mixed with the injected inert gas, reducing the oxygen concentration and effectively preventing dust explosions. At the same time, it achieves preliminary filtration of the dust-laden gas, separating larger particles and significantly reducing the impact and wear of dust in the subsequent gas on the dust collector bag 2, thus extending the service life of the dust collector bag.

[0046] Please see Figures 6-8 As shown, the gas mixing assembly 5 includes a connecting pipe 501 and an inert gas storage box 503. One end of the connecting pipe 501 is threadedly sealed to the air inlet pipe 106, and the other end of the connecting pipe 501 is threadedly sealed to a guide pipe 508, which is connected to the dust conveying pipe. The inert gas storage box 503 is fixed to the outer wall of the dust collector 1 by screws. The upper surface of the end of the connecting pipe 501 near the guide pipe 508 is connected to a gas supply pipe 502. An air supply pump 5 is installed inside the inert gas storage box 503. 031, the other end of the gas supply pipe 502 passes through the inert gas storage box 503 and is connected to the output port of the gas supply pump 5031. A shaft 504 is provided at the center of the inside of the connecting pipe 501. A blade 506 is fixed on the outer wall of the end of the shaft 504 near the gas supply pipe 502. A bracket 505 is sleeved on the shaft 504. The bracket 505 is fixedly connected to the inner wall of the connecting pipe 501. A filter plate 507 is fixed at the other end of the shaft 504. The outer ring wall of the filter plate 507 contacts the inner wall of the connecting pipe 501 and is in a sliding connection.

[0047] The scraping assembly 6 includes a collection box 601. The top of the collection box 601 matches the outer wall of the connecting pipe 501 in the gas mixing assembly 5. The lower surface of the connecting pipe 501 and the top of the collection box 601 are provided with matching openings. A scraper 602 is vertically fixed inside the collection box 601. The top of the scraper 602 extends through the opening into the connecting pipe 501. The scraper 602 contacts the filter plate 507 in the gas mixing assembly 5. A guide plate 603 is welded to the opening in the connecting pipe 501. Arc-shaped top plates 604 are welded to the top of the outer walls on both sides of the collection box 601. Both arc-shaped top plates 604 are in contact with the outer wall of the connecting pipe 501. Arc-shaped mounting plates 605 are placed on the outer wall of the upper surface of the connecting pipe 501 at the two arc-shaped top plates 604. The two arc-shaped top plates 604 and the arc-shaped mounting plates 605 are fixedly connected by bolts.

[0048] Dust-laden gas enters the connecting pipe 501 through the air guide pipe 508. At the same time, the air supply pump 5031 is started, injecting inert gas (such as nitrogen) from the inert gas storage box 503 into the connecting pipe 501 through the air supply pipe 502. The gas mixes with the dust-laden gas. When the mixed gas passes through the blades 506, it will cause the blades 506 to rotate. The blades 506 drive the filter plate 507 to rotate through the shaft 504. The filter plate 507 slides on the inner wall of the connecting pipe 501, so that the gas is fully mixed before entering the dust collector 1, reducing the oxygen concentration and effectively preventing dust explosion. When the mixed gas passes through the filter plate 507, the large dust particles it contains will be filtered out. The guide plate 603 guides the airflow direction to prevent the gas from entering the interior of the collection box 601 and causing secondary dust. During the rotation of the filter plate 507, the scraper 602 is close to its surface and scrapes the attached large dust particles to the bottom of the collection box 601 to ensure continuous and efficient filtration.

[0049] When regularly cleaning the large dust particles collected in the collection box 601, the staff uses tools to remove the bolts used to fix the arc-shaped top plate 604 and the arc-shaped mounting plate 605, so that the top of the collection box 601 is separated from the connecting pipe 501. This makes it easy to open the collection box 601 and take out the dust accumulated inside, thereby achieving efficient cleaning and maintenance, ensuring the long-term stable operation of the equipment, and improving the reliability and safety of the overall dust removal system.

[0050] Please see Figure 4 , Figure 5 , Figure 6 and Figure 9 As shown, a side plate 8 is fixed to the outer wall of the dust collector 1 on one side of the air inlet pipe 106. A movable plate 802 is provided on the side of the side plate 8 near the air inlet pipe 106. A fixed plate 803 is provided below the movable plate 802. The fixed plate 803 is fixedly connected to the bottom of the outer wall of the side plate 8. A monitoring block 8031 ​​is installed on the upper surface of the fixed plate 803. A pressure sensor 8032 is embedded in the top of the monitoring block 8031. A pressure block 8021 is fixed on the lower surface of the movable plate 802 at the monitoring block 8031. A movable groove 801 is provided on the side plate 8. A vertical rod 8011 is fixed in the movable groove 801. A movable plate 8013 is slidably sleeved on the vertical rod 8011. A support spring 8012 is provided on the movable plate 8013 and sleeved on the outside of the vertical rod 8011. One section of the movable plate 802 is fixedly connected to the movable plate 8013. A push plate 606 is welded to the outer wall of the collection box 601 in the scraping assembly 6 near the dust collection box 1. The upper surface of the push plate 606 is in contact with the lower surface of the movable plate 802.

[0051] The vibration assembly 7 includes a geared motor 701. A pressure sensor 8032 is connected to the geared motor 701 via a wireless controller. The output shaft of the geared motor 701 is fitted with a small cam 702. The geared motor 701 is mounted on the upper surface of the vibration tube frame 103 by screws. A guide tube 1031 is integrally provided on the vibration tube frame 103. A vertical shaft 703 passes through the guide tube 1031. The bottom end of the vertical shaft 703 is fixedly connected to the filter bag top frame 102. The protruding part of the small cam 702 is in contact with the outer wall of the vertical shaft 703.

[0052] Each of the four corners of the filter bag top frame 102 and the vibrating tube frame 103 is equipped with a lead screw 705. Each lead screw 705 is fitted with a hexagonal nut 7052 at its bottom and top. Each of the four corners of the vibrating tube frame 103 is fitted with a return spring 7051 on its upper surface outside the lead screw 705. The bottom of each return spring 7051 is in contact with the upper surface of the vibrating tube frame 103, and the top of each return spring 7051 is in contact with the hexagonal nut 7052.

[0053] During the disassembly and cleaning of the collection box 601, after the top of the collection box 601 separates from the connecting pipe 501, the push plate 606 moves downward. At this time, the support spring 8012 unfolds and pushes the moving plate 8013 downward along the vertical rod 8011. The moving plate 8013 drives the movable plate 802 to move downward, causing the pressure block 8021 to press against the monitoring block 8031 ​​and trigger the pressure sensor 8032. The pressure sensor 8032 sends a signal to the controller. After receiving the signal, the controller starts the reduction motor 701. After the protruding part of the small cam 702 contacts the top of the vertical shaft 703, it pushes it along the guide. The vertical shaft 703 moves downward within the tube 1031, causing the filter bag top frame 102, lead screw 705, dust collector bag 2, and filter bag bottom plate 105 to move downward synchronously. When the lead screw 705 moves downward, it compresses the return spring 7051 through the hexagonal nut 7052 at the top. When the protrusion of the small cam 702 leaves the top of the vertical shaft 703, the return spring 7051 quickly springs back, causing the filter bag top frame 102 to return to its original position. Through periodic vibration, the fine dust adhering to the inner wall of the dust collector bag 2 falls off and into the dust collection box 3, thereby ensuring the removal of fine dust, improving dust removal efficiency, and ensuring the long-term stable operation of the equipment.

[0054] Please see Figures 1-10 As shown in the above embodiments, a dust removal method for a dust removal device for dust explosion prevention will also be provided, including the following steps:

[0055] Step 1: Gas mixing. The dust-laden gas to be treated is introduced into the dust collector 1 through the inlet pipe 106. At the same time, inert gas is released from the inert gas storage box 503 and mixed with it. The mixed gas then passes through the blades 506 and drives them to rotate. The shaft 504 drives the filter plate 507 to rotate, so that the dust-laden gas and the inert gas are fully mixed, effectively reducing the oxygen concentration. The filter plate 507 performs preliminary filtration to separate larger particles. While the filter plate 507 is rotating, the scraper 602 scrapes the filtered particles into the collection box 601.

[0056] Step 2: Deep filtration. After the gas has passed the initial filtration, it enters the dust collection box 1 and is drawn upward by the fan 1041. The gas undergoes deep filtration through the dust collection bag 2. Fine dust is intercepted on the inner surface of the dust collection bag 2, and the clean gas passes through the bag and is discharged by the fan 1041. It is also discharged through the ventilation holes of the soundproof air outlet plate 1042 to ensure that the exhaust gas meets the standards and at the same time reduce noise pollution.

[0057] Step 3: Vibration cleaning. When regularly dismantling and cleaning the large dust particles collected in the collection box 601, the bolts are turned and the collection box 601 moves down. The push plate 606 moves down with it, and the movable plate 802 moves down under the elasticity of the support spring 8012, so that the pressure block 8021 contacts the monitoring block 8031. The pressure sensor 8032 detects the pressure change and sends a signal to the controller.

[0058] The controller starts the geared motor 701. The output end of the geared motor 701 pushes the vertical shaft 703 downward through the small cam 702. The vertical shaft 703 drives the filter bag top frame 102, the lead screw 705, the dust collector bag 2 and the filter bag bottom plate 105 to move downward synchronously. When the lead screw 705 moves downward, it compresses the return spring 7051 through the hexagonal nut 7052 at the top. When the protrusion of the small cam 702 leaves the vertical shaft 703, the return spring 7051 quickly springs back, driving the filter bag top frame 102 to reset. Through periodic vibration, the fine dust adhering to the inner wall of the dust collector bag 2 falls off and into the dust collection box 3.

[0059] The working principle of this invention is as follows:

[0060] When treating dust-laden gas, the dust-laden gas enters the connecting pipe 501 through the air guide pipe 508. Simultaneously, the air supply pump 5031 starts, injecting inert gas (such as nitrogen) from the inert gas storage tank 503 into the connecting pipe 501 through the air supply pipe 502. This gas mixes with the dust-laden gas. As the mixed gas passes through the blades 506, they rotate. The blades 506, via the shaft 504, drive the filter plate 507 to rotate. The filter plate 507 slides against the inner wall of the connecting pipe 501, ensuring thorough mixing of the gas before it enters the dust collection box 1, thus reducing the oxygen concentration. When the mixed gas passes through the filter plate 507, the large dust particles it contains will be filtered out. The guide plate 603 guides the airflow direction to prevent the gas from entering the collection box 601 and causing secondary dust. During the rotation of the filter plate 507, the scraper 602 is close to its surface and scrapes the attached large dust particles to the bottom of the collection box 601. Then, the clean gas enters the dust collector 1 and is deeply filtered by the dust collector bag 2 under the action of the fan 1041. Fine dust is effectively intercepted and finally discharged through the soundproof air outlet plate 1042.

[0061] When regularly cleaning the large dust particles collected in the collection box 601, the staff uses tools to remove the bolts used to fix the arc-shaped top plate 604 and the arc-shaped mounting plate 605, so that the top of the collection box 601 is separated from the connecting pipe 501, making it easy to open the collection box 601 and take out the dust accumulated inside.

[0062] After the top of the collection box 601 separates from the connecting pipe 501, the push plate 606 moves downward. At this time, the support spring 8012 unfolds and pushes the moving plate 8013 downward along the vertical rod 8011. The moving plate 8013 drives the movable plate 802 downward, causing the pressure block 8021 to press against the monitoring block 8031 ​​and trigger the pressure sensor 8032. The pressure sensor 8032 sends a signal to the controller. After receiving the signal, the controller starts the reduction motor 701. After the protruding part of the small cam 702 contacts the top of the vertical shaft 703, it pushes it... The vertical shaft 703 moves downward along the guide tube 1031, causing the filter bag top frame 102, lead screw 705, dust collector bag 2 and filter bag bottom plate 105 to move downward synchronously. When the lead screw 705 moves downward, it compresses the return spring 7051 through the hexagonal nut 7052 at the top. When the protrusion of the small cam 702 leaves the top of the vertical shaft 703, the return spring 7051 quickly springs back, causing the filter bag top frame 102 to return to its original position. Through periodic vibration, the fine dust adhering to the inner wall of the dust collector bag 2 falls off and into the dust collection box 3, making it easy to pull out and centrally process.

[0063] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A dust removal device for dust explosion prevention, comprising a dust collection box (1), a plurality of dust collection bags (2) inside, and a dust explosion prevention processing mechanism (4), wherein the top of each of the plurality of dust collection bags (2) is fitted with a filter bag top frame (102) by screws, a filter bag bottom plate (105) is provided at the bottom of the plurality of dust collection bags (2) in the dust collection box (1), and an air inlet pipe (106) is connected to the bottom of the side wall of the dust collection box (1), characterized in that, The dust collector (1) has a vibrating tube frame (103) fixed inside above the filter bag top frame (102), and a pull-out dust collection box (3) is provided at the bottom of the dust collector (1) below the filter bag bottom plate (105). The processing mechanism (4) consists of a gas mixing component (5), a scraping component (6), and a vibration component (7). The filter bag top frame (102) is connected to the vibration tube frame (103) through the vibration component (7). The gas mixing component (5) is connected to the dust collection box (1) through the air inlet pipe (106). The gas mixing component (5) is used to mix the dust-laden gas with the inert gas and initially remove large particles of dust. The scraping component (6) is set below the gas mixing component (5) and scrapes off the large particles of dust that are filtered. The vibration component (7) is used to periodically vibrate the dust collection bag (2) after the scraping component (6) is removed to remove the fine dust adhering to the inner wall. The gas mixing assembly (5) includes a connecting pipe (501) and an inert gas storage box (503). One end of the connecting pipe (501) is threadedly sealed to the air inlet pipe (106), and the other end of the connecting pipe (501) is threadedly sealed to a guide pipe (508). The guide pipe (508) is connected to a dust conveying pipe. The inert gas storage box (503) is fixed to the outer wall of the dust collector (1) by screws. The upper surface of the end of the connecting pipe (501) near the guide pipe (508) is connected to a gas supply pipe (502). A gas supply pump (5031) is installed inside the inert gas storage box (503). The other end of the gas supply pipe (502) passes through the inert gas storage box (503) and is connected to the output port of the gas supply pump (5031). A shaft (504) is provided at the center of the connecting pipe (501). A blade (506) is fixed on the outer wall of one end of the shaft (504) near the air supply pipe (502). A bracket (505) is sleeved on the shaft (504). The bracket (505) is fixedly connected to the inner wall of the connecting pipe (501). A filter plate (507) is fixed at the other end of the shaft (504). The outer ring wall of the filter plate (507) is in contact with the inner wall of the connecting pipe (501) and is slidably connected. The scraping assembly (6) includes a collection box (601), the top of which matches the outer wall of the connecting pipe (501) in the gas mixing assembly (5), and matching openings are provided on the lower surface of the connecting pipe (501) and the top of the collection box (601). A scraper (602) is vertically fixed inside the collection box (601), and the top of the scraper (602) extends through the opening into the connecting pipe (501). The scraper (602) contacts the filter plate (507) in the gas mixing assembly (5). A flow guide plate (603) is welded at the opening of the connecting pipe (501).

2. The dust removal equipment for explosion-proof dust control according to claim 1, characterized in that, The top of the outer walls on both sides of the collection box (601) is welded with an arc-shaped top plate (604). Both arc-shaped top plates (604) are in contact with the outer wall of the connecting pipe (501). An arc-shaped mounting plate (605) is placed on the outer wall of the upper surface of the connecting pipe (501) at the two arc-shaped top plates (604). The two arc-shaped top plates (604) and the arc-shaped mounting plate (605) are fixedly connected by bolts.

3. The dust removal equipment for explosion-proof dust removal according to claim 1, characterized in that, The outer wall of the dust collector (1) is fixed with a side plate (8) on one side of the air inlet pipe (106). The side plate (8) is provided with a movable plate (802) on the side near the air inlet pipe (106). A fixed plate (803) is provided below the movable plate (802). The fixed plate (803) is fixedly connected to the bottom of the outer wall of the side plate (8). A monitoring block (8031) is installed on the upper surface of the fixed plate (803). A pressure sensor (8032) is embedded in the top of the monitoring block (8031). A pressure block (8021) is fixed on the lower surface of the movable plate (802) at the monitoring block (8031).

4. The dust removal equipment for explosion-proof dust protection according to claim 3, characterized in that, The side plate (8) is provided with a movable groove (801), and a vertical rod (8011) is fixed in the movable groove (801). A movable plate (8013) is slidably sleeved on the vertical rod (8011). A support spring (8012) is provided on the movable plate (8013) and sleeved on the outside of the vertical rod (8011). One section of the movable plate (802) is fixedly connected to the movable plate (8013). The collection box (601) in the scraping assembly (6) is provided with a push plate (606) welded to the outer wall of the dust removal box (1). The upper surface of the push plate (606) is in contact with the lower surface of the movable plate (802).

5. A dust removal device for explosion-proof dust control according to claim 3, characterized in that, The vibration assembly (7) includes a geared motor (701), and the pressure sensor (8032) is connected to the geared motor (701) via a wirelessly connected controller. The output shaft of the geared motor (701) is fitted with a small cam (702). The geared motor (701) is mounted on the upper surface of the vibration tube frame (103) by screws. The vibration tube frame (103) is integrally provided with a guide tube (1031). A vertical shaft (703) passes through the guide tube (1031). The bottom end of the vertical shaft (703) is fixedly connected to the filter bag top frame (102). The protruding part of the small cam (702) is in contact with the outer wall of the vertical shaft (703). Each of the four corners of the filter bag top frame (102) and the vibrating tube frame (103) is provided with a lead screw (705). Each lead screw (705) is equipped with a hexagonal nut (7052) at its bottom and top. Each vibrating tube frame (103) is equipped with a return spring (7051) on its upper surface outside the lead screw (705). The bottom of each return spring (7051) is in contact with the upper surface of the vibrating tube frame (103), and the top of each return spring (7051) is in contact with the hexagonal nut (7052).

6. The dust removal equipment for explosion-proof dust control according to claim 1, characterized in that, The dust collector (1) has a partition (104) fixed on the vibrating tube frame (103) inside. A fan (1041) is installed on the upper surface of the partition (104). A soundproof air outlet plate (1042) is installed on the top of the dust collector (1). The soundproof air outlet plate (1042) has ventilation holes.

7. A dust removal method for a dust removal device for explosion-proof dust control according to any one of claims 1-6, characterized in that, Includes the following steps: Step 1: Gas mixing. The dust-laden gas to be treated is introduced into the dust collector (1) through the inlet pipe (106). At the same time, inert gas is released from the inert gas storage box (503) and mixed with it. The mixed gas then passes through the blades (506) and drives them to rotate. The shaft (504) drives the filter plate (507) to rotate, so that the dust-laden gas and the inert gas are fully mixed, effectively reducing the oxygen concentration. The filter plate (507) performs preliminary filtration to separate larger particles. When the filter plate (507) rotates, the filtered particles are scraped into the collection box (601) by the scraper (602). Step 2, deep filtration: After the gas has passed through the initial filtration, it enters the dust collection box (1) and is drawn upward by the fan (1041). The gas is then filtered through the dust collection bag (2) for deep filtration. Fine dust is intercepted on the inner surface of the dust collection bag (2). The clean gas passes through the bag and is discharged by the fan (1041), and is discharged through the ventilation holes of the soundproof air outlet plate (1042) to ensure that the exhaust gas meets the standards and at the same time reduce noise pollution. Step 3: Vibration cleaning. When regularly dismantling and cleaning the large dust particles collected in the collection box (601), the bolts are turned and the collection box (601) moves down. The push plate (606) moves down with it, and the movable plate (802) moves down under the elasticity of the support spring (8012), so that the pressure block (8021) contacts the monitoring block (8031). The pressure sensor (8032) detects the pressure change and sends a signal to the controller. The controller starts the geared motor (701). The output end of the geared motor (701) pushes the vertical shaft (703) down through the small cam (702). The vertical shaft (703) drives the filter bag top frame (102), the lead screw (705), the dust collector bag (2) and the filter bag bottom plate (105) to move down synchronously. When the lead screw (705) moves down, it compresses the reset spring (7051) through the hexagonal nut (7052) at the top. When the protrusion of the small cam (702) leaves the vertical shaft (703), the reset spring (7051) quickly springs back, driving the filter bag top frame (102) to reset. Through periodic vibration, the fine dust adhering to the inner wall of the dust collector bag (2) falls off and into the dust collection box (3).

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