Dust removal equipment for dust explosion prevention and dust removal method thereof

Abstract

The invention discloses dust removal equipment for dust explosion prevention and a dust removal method thereof, and relates to the field of dust removal equipment.The dust removal equipment comprises a dust removal box, a plurality of dust removal cloth bags in the dust removal box and a treatment mechanism for dust explosion prevention, the treatment mechanism is composed of a gas mixing assembly, a scraping assembly and a vibration assembly, and a filter bag top frame is connected with a vibration pipe frame through the vibration assembly; the gas mixing assembly is communicated with the dust removal box through a gas inlet pipe, the gas mixing assembly is used for mixing dusty gas and inert gas and preliminarily removing large-particle dust, and the scraping assembly is arranged below the gas mixing assembly and scrapes the filtered large-particle dust; and the vibration assembly is used for periodically vibrating the dust removal cloth bag after the scraping assembly is detached so as to remove fine dust attached to the inner wall of the dust removal cloth bag. Inert gas is introduced and fully mixed before entering the dust removal box, and primary large-particle dust is filtered, so that the oxygen concentration is reduced, and dust explosion is effectively prevented.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of dust removal equipment, and specifically relates to dust removal equipment for dust explosion prevention and a dust removal method thereof. Background Art

[0002] With the development of industry, the risk of dust explosions has increased, posing a serious threat to production safety and human lives. Dust explosion refers to the rapid combustion of combustible dust caused by an ignition source under specific conditions, accompanied by a sharp rise in pressure to form an explosion. In industrial fields such as grain processing, chemical industry, and metal processing, dust explosion incidents occur frequently, and scientific preventive measures and strict safety management must be taken to ensure safety.

[0003] An explosion-proof dust collector for explosive dust described in the prior art includes a dust collection box, one side of which is fixedly connected to an air inlet pipe; an inner wall of the dust collection box is fixedly connected to a heat equalizing bucket; a side wall of the heat equalizing bucket is provided with a guide groove; the top and bottom of the heat equalizing bucket are fixedly connected to water pipes; both water pipes are connected to an external water pump assembly; the top surface of the dust collection box is fixedly connected to a suction box; the suction box is used to suck the gas in the dust collection box; and a plurality of evenly arranged dust bags are installed on the inner top surface of the dust collection box.

[0004] Although the above technology can cool the gas inside the dust collector, thereby reducing the probability of dust explosion in the dust collector to protect the life, health and safety of workers, the gas contains larger particles and heavier dust. After these dusts enter the dust collector, they may cause greater impact and wear on the dust collector bag and other filtering devices, reducing the filtration efficiency and equipment life. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a dust removal device for dust explosion prevention and a dust removal method thereof to solve the technical problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A dust collection device for dust explosion prevention, comprising a dust collection box, a plurality of dust collection bags inside and a processing mechanism for dust explosion prevention, the tops of the plurality of dust collection bags are all mounted with a filter bag top frame by screws, a filter bag bottom plate is provided at the bottom of the plurality of dust collection bags in the dust collection box, the filter bag bottom plate is fixed to the plurality of 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 pipe rack is fixed to the interior of the dust collection box above the filter bag top frame, a pull-out dust collection box is provided at the inner bottom of the dust collection box below the filter bag bottom plate, and a sealing door is mounted on the outer wall of the dust collection box by a hinge; 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 pipe frame through the vibration component. The gas mixing component is connected to the dust removal box through the air inlet pipe. The gas mixing component is used to mix the dust-laden gas with the inert gas and preliminarily remove large particles of dust. The scraping component is arranged below the gas mixing component and scrapes the filtered large particles of dust. The vibration component is used to periodically vibrate the dust bag after the scraping component is removed to remove fine dust attached to the inner wall.

[0007] Specifically, the present technical solution includes a gas mixing assembly comprising a connecting pipe and an inert gas storage box, one end of the connecting pipe is threadedly and sealedly connected to the air inlet pipe, the other end of the connecting pipe is threadedly and sealedly connected to an air guide pipe, the air guide pipe is connected to the dust conveying pipe, the inert gas storage box is fixed to the outer wall of the dust removal box by screws, the upper surface of one end of the connecting pipe close to the air guide pipe is connected to an air 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.

[0008] Specifically, the present technical solution is provided with a shaft rod at the inner center of the connecting pipe, and a blade is fixed to the outer wall of one end of the shaft rod close to the air supply pipe. A bracket is sleeved on the shaft rod, and the bracket is fixedly connected to the inner wall of the connecting pipe, and a filter plate is fixed to the other end of the shaft rod, and 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.

[0009] Specifically, the scraping assembly includes a collection box, the top of which matches the outer wall of the connecting pipe provided in the gas mixing assembly, the lower surface of the connecting pipe and the top of the collection box are both provided with matching openings, a scraper is vertically fixed inside the collection box, the top of the scraper extends through the opening into the connecting pipe, and the scraper contacts the filter plate provided in the gas mixing assembly; A guide inclined plate is welded at the opening of the connecting pipe.

[0010] Specifically, the tops of the outer walls on both sides of the collecting box are welded with arc-shaped top plates, and the two arc-shaped top plates are in contact with the outer walls of the connecting pipe. An arc-shaped mounting plate is 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 plate are fixedly connected by bolts.

[0011] Specifically, the outer wall of the dust removal box is located on the side of the air inlet pipe and a side panel is fixed thereon, a movable panel is provided on the side of the side panel close to the air inlet pipe, a fixed panel is provided below the movable panel, the fixed panel is fixedly connected to the bottom of the outer wall of the side panel, a monitoring block is installed on the upper surface of the fixed panel, a pressure sensor is embedded in the top of the monitoring block, and a pressure block is fixed on the lower surface of the movable panel at the monitoring block.

[0012] The technical solution is specific, 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, the movable plate is provided with a support spring sleeved on the outside of the vertical rod, one 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 provided in the scraping assembly, and the upper surface of the push plate is in contact with the lower surface of the movable plate.

[0013] Specifically, the vibration assembly includes a reduction motor, the pressure sensor is connected to the reduction motor through a wirelessly connected controller, the output shaft sleeve of the reduction motor is provided with a small cam, the reduction motor is mounted on the upper surface of the vibration pipe frame by screws, the vibration pipe frame is integrally provided with a guide tube, a vertical shaft is passed through the guide tube, the bottom end of the vertical shaft is fixedly connected to the filter bag top frame, and the raised portion of the small cam is in contact with the outer wall of the vertical shaft; Screw rods are provided at the four corners of the filter bag top frame and the upper surface of the vibration tube rack, and a hexagonal nut is installed at the bottom and top of each screw rod. A reset spring is located outside the screw rod on the upper surface of the vibration tube rack, and the bottom end of each reset spring is in contact with the upper surface of the vibration tube rack, and the top end of each reset spring is in contact with the hexagonal nut.

[0014] Specifically, the dust removal box is provided with a partition fixed on the vibration pipe frame, a fan is installed on the upper surface of the partition, and a sound insulation air outlet plate is installed on the top of the dust removal box, and ventilation holes are provided on the sound insulation air outlet plate.

[0015] According to the above technical solution, a dust removal method for dust explosion-proof dust removal equipment is also provided, comprising the following steps: Step 1: Gas mixing. The dust-laden gas to be treated is introduced into the dust removal box through the air inlet pipe. At the same time, inert gas is released from the inert gas storage box to mix with the gas. The mixed gas then passes through the blades, which drives them to rotate. The shaft drives the filter plate to rotate, so that the dust-laden gas and the inert gas are fully mixed, effectively reducing the oxygen concentration. The filter plate performs preliminary filtration to separate larger particles. As the filter plate rotates, the scraper scrapes the removed particles into the collection box. Step 2: Deep filtration. After the preliminary filtered gas enters the dust removal box, the fan draws the gas upwards and passes through the dust bag for deep filtration. Fine dust is intercepted on the inner surface of the dust bag. The clean gas passes through the bag and is discharged by the fan and discharged through the ventilation holes of the sound insulation air outlet plate, ensuring that the exhaust gas meets the standards while reducing noise pollution. Step 3: Vibration cleaning: When the collection box is regularly dismantled to clean the collected large particles of dust, the bolt is turned to move the collection box downward, and the push plate moves downward accordingly. The movable plate moves downward 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. The controller starts the reduction motor, and the output end of the reduction motor pushes the vertical shaft downward through the small cam. The vertical shaft drives the filter bag top frame, screw rod, dust bag and filter bag bottom plate to move downward synchronously. When the screw rod moves downward, the reset spring is compressed through the hexagonal nut on the top. When the raised part of the small cam leaves the vertical shaft, the reset spring rebounds quickly, driving the filter bag top frame to reset. Through periodic vibration, the fine dust attached to the inner wall of the dust bag falls off and falls into the dust collection box.

[0016] In summary, the present invention has the following beneficial effects: by introducing inert gas and blowing the blades to rotate, the shaft drives the filter plate to rotate, so that the gas is fully mixed before entering the dust removal box, reducing the oxygen concentration and effectively preventing dust explosions; At the same time, the rotation of the filter plate realizes the preliminary filtration of the dust-laden gas, separates the larger particles, and scrapes these particles into the collection box through the scraper, which significantly reduces the impact and wear of the dust in the subsequent gas on the dust collection bag, extends the service life of the dust collection bag, and reduces the equipment maintenance cost; In addition, when the collection box is regularly dismantled and cleaned, the pressure block can be brought into contact with the monitoring block, triggering the pressure sensor. The controller starts the reduction motor, driving the filter bag top frame to vibrate and clean the dust, ensuring that fine dust falls off, improving dust removal efficiency, and ensuring long-term stable operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the isometric structure of the device of the present invention; Figure 2 This is a schematic diagram of the main structure of the present invention; Figure 3 This is a schematic diagram of the internal oblique axonometric structure of the dust removal box of the present invention; Figure 4 Schematic diagram of the dust bag structure of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle; Figure 6 This is a schematic diagram of the oblique axonometric structure of the processing mechanism of the present invention; Figure 7 This is a schematic diagram of the main structure of the processing mechanism of the present invention; Figure 8 This is a schematic diagram of the blade and filter plate structure of the present invention; Figure 9 It is a schematic diagram of the side panel structure of the present invention; Figure 10 A diagram showing the steps of the method of the present invention.

[0018] Description of the drawings: 1. Dust box; 101. Sealing door; 102. Filter bag top frame; 103. Vibrating pipe rack; 1031. Guide pipe; 104. Partition; 1041. Fan; 1042. Sound insulation air outlet plate; 105. Filter bag bottom plate; 106. Air inlet pipe; 2. Dust 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. Bracket; 506. Blade; 507. Filter plate; 508. Air guide pipe; 6. Scraper Removal assembly; 601, collecting box; 602, scraper; 603, guide ramp; 604, arc-shaped top plate; 605, arc-shaped mounting plate; 606, push plate; 7, vibration assembly; 701, reduction motor; 702, small cam; 703, vertical shaft; 705, screw rod; 7051, return spring; 7052, hexagonal nut; 8, side plate; 801, movable groove; 8011, vertical rod; 8012, support spring; 8013, movable plate; 802, movable plate; 8021, pressure block; 803, fixed plate; 8031, monitoring block; 8032, pressure sensor. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 understood as limiting the present invention.

[0020] The following describes an embodiment of the present invention based on its overall structure.

[0021] In this embodiment, please refer to Figure 1-Figure 4 As shown, a dust removal device for dust explosion prevention includes a dust box 1, multiple dust bags 2 inside and a processing mechanism 4 for dust explosion prevention. The tops of the multiple dust bags 2 are all installed with filter bag top frames 102 by screws. A filter bag bottom plate 105 is provided at the bottom of the multiple dust bags 2 in the dust box 1. The filter bag bottom plate 105 is fixed to the multiple dust bags 2 with screws. The bottom of the side wall of the dust box 1 is connected with an air intake pipe 106. A vibrating pipe rack 103 is fixed to the inside of the dust box 1 above the filter bag top frame 102. A pull-out dust collection box 3 is provided at the inner bottom of the dust box 1 below the filter bag bottom plate 105. The outer wall of the dust box 1 is installed with a sealing door 101 by a hinge. The processing mechanism 4 is composed 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 pipe frame 103 through the vibration component 7. The gas mixing component 5 is connected to the dust removal 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 preliminarily remove large particles of dust. The scraping component 6 is arranged below the gas mixing component 5 and scrapes the filtered large particles of dust. The vibration component 7 is used to periodically vibrate the dust bag 2 after the scraping component 6 is removed to remove fine dust attached to the inner wall; Inside the dust removal box 1 , a partition 104 is fixed on the vibrating pipe frame 103 , a fan 1041 is installed on the upper surface of the partition 104 , and a sound insulation air outlet plate 1042 is installed on the top of the dust removal box 1 , and ventilation holes are provided on the sound insulation air outlet plate 1042 .

[0022] When dust-laden gas is subjected to dust removal treatment, the dust-laden gas is first mixed with an inert gas through the gas mixing component 5, and large dust particles are initially removed. Then, the large dust particles separated are cleaned and collected by the scraping component 6. After that, the clean gas enters the dust removal box 1, and is deeply filtered through the dust removal bag 2 under the action of the fan 1041. Fine dust is effectively trapped, and finally the purified gas is discharged through the sound insulation air outlet plate 1042 to ensure the dust removal effect. When the collection box 601 in the scraping assembly 6 needs to be disassembled and cleaned regularly, the collection box 601 will automatically trigger the vibration assembly 7 after being disassembled to vibrate the dust bag 2 to clean the fine dust attached to the inner wall. These fine dusts fall into the pull-out dust collection box 3, which is convenient for pulling out and centralized treatment. Thus, by introducing inert gas and mixing it with the dust-laden gas, it is ensured that it is evenly mixed with the injected inert gas, the oxygen concentration is reduced, and dust explosions are effectively prevented. At the same time, preliminary filtration of the dust-laden gas is achieved, larger particles are separated, and the impact and wear of the dust in the subsequent gas on the dust collector bag 2 are significantly reduced, thereby extending the service life of the dust collector bag.

[0023] See also Figure 6-Figure 8As 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 and sealedly connected to the air inlet pipe 106. The other end of the connecting pipe 501 is threadedly and sealedly connected to the air guide pipe 508. The air guide pipe 508 is connected to the dust conveying pipe. The inert gas storage box 503 is fixed to the outer wall of the dust removal box 1 by screws. The upper surface of one end of the connecting pipe 501 near the air guide pipe 508 is connected to the air 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 inner portion of the connecting pipe 501. A blade 506 is fixed to the outer wall of the shaft 504 at one end close to 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 to the other end of the shaft 504. The outer wall of the filter plate 507 contacts and is slidably connected to the inner wall of the connecting pipe 501. The scraping assembly 6 includes a collecting box 601, the top of which matches the outer wall of the connecting pipe 501 provided 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 collecting box 601. A scraper 602 is vertically fixed inside the collecting 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 provided in the gas mixing assembly 5, and a guide inclined plate 603 is welded at the opening in the connecting pipe 501. Arc-shaped top plates 604 are welded to the tops of the outer walls on both sides of the collecting box 601, and the two 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, and the two arc-shaped top plates 604 and the arc-shaped mounting plate 605 are fixedly connected by bolts.

[0024] The dust-laden gas enters the connecting pipe 501 through the air guide pipe 508, and at the same time the air supply pump 5031 is started, and the inert gas (such as nitrogen) in the inert gas storage box 503 is injected into the connecting pipe 501 through the air supply pipe 502, and mixed with the dust-laden gas. When the mixed gas passes through the blade 506, it drives it to rotate. The blade 506 drives 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 removal box 1, reducing the oxygen concentration and effectively preventing dust explosion. When the mixed gas passes through the filter plate 507, the large particles of dust contained in it will be filtered out, wherein the guide inclined plate 603 guides the direction of the airflow 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 particles of dust to the bottom of the collection box 601, ensuring continuous and efficient filtering effect. When regularly cleaning the large particles of dust 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 convenient to open the collection box 601 and remove the dust accumulated inside, thereby achieving efficient cleaning and maintenance, ensuring long-term stable operation of the equipment, and improving the reliability and safety of the overall dust removal system.

[0025] See also Figure 4 、 Figure 5 、 Figure 6 and Figure 9 As shown, the outer wall of the dust removal box 1 is located on the side of the air inlet pipe 106 and is fixed with a side plate 8. A movable plate 802 is provided on the side of the side plate 8 close to 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 to the lower surface of the movable plate 802 at the monitoring block 8031. A movable groove 801 is provided on the side plate 8, in which a vertical rod 8011 is fixed. A movable plate 8013 is slidably sleeved on the vertical rod 8011. The movable plate 8013 is provided with a support spring 8012 sleeved on the outside of the vertical rod 8011. A 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 provided in the scraping assembly 6 near 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. The vibration assembly 7 includes a reduction motor 701. The pressure sensor 8032 is connected to the reduction motor 701 via a wirelessly connected controller. The output shaft sleeve of the reduction motor 701 is provided with a small cam 702. The reduction motor 701 is mounted on the upper surface of the vibration pipe frame 103 by screws. The vibration pipe frame 103 is integrally provided with a guide tube 1031. A vertical shaft 703 is passed through the guide tube 1031. The bottom end of the vertical shaft 703 is fixedly connected to the filter bag top frame 102. The raised portion of the small cam 702 contacts the outer wall of the vertical shaft 703. Screw rods 705 are provided at the four corners of the upper surface of the filter bag top frame 102 and the vibration pipe frame 103. The bottom and top ends of each screw rod 705 are installed with hexagonal nuts 7052. The upper surface of the vibration pipe frame 103 is located outside the screw rod 705. The bottom end of each reset spring 7051 is in contact with the upper surface of the vibration pipe frame 103, and the top end of each reset spring 7051 is in contact with the hexagonal nut 7052.

[0026] When the collection box 601 is disassembled and cleaned, after the top of the collection box 601 is separated from the connecting pipe 501, the push plate 606 moves downward. At this time, the support spring 8012 expands to push the movable plate 8013 to move downward along the vertical rod 8011. The movable plate 8013 drives the movable plate 802 to move downward, so that the pressure block 8021 presses the monitoring block 8031 and triggers 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 to run. The protruding part of the small cam 702 contacts the top of the vertical shaft 703, which pushes it along the guide The tube 1031 moves downward, and the downward moving vertical shaft 703 drives the filter bag top frame 102, the screw rod 705, the dust bag 2 and the filter bag bottom plate 105 to move downward synchronously. When the screw rod 705 moves downward, the return spring 7051 is compressed through the hexagonal nut 7052 on the top. When the raised part of the small cam 702 leaves the top of the vertical shaft 703, the return spring 7051 rebounds quickly, driving the filter bag top frame 102 to reset. Through periodic vibration, the fine dust attached to the inner wall of the dust bag 2 falls off and falls into the dust collecting box 3, thereby ensuring the shedding of fine dust, improving the dust removal efficiency, and ensuring the long-term stable operation of the equipment.

[0027] See also Figures 1-10 As shown, according to the above embodiment, a dust removal method for dust explosion-proof dust removal equipment is also provided, comprising the following steps: Step 1: Gas mixing. The dust-laden gas to be treated is introduced into the dust removal box 1 through the air inlet pipe 106. At the same time, inert gas is released from the inert gas storage box 503 to mix with the dust-laden gas. The mixed gas then passes through the blades 506, which drive the blades 506 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. As the filter plate 507 rotates, the removed particles are scraped into the collection box 601 by the scraper 602. Step 2: Deep filtration. After the preliminarily filtered gas enters the dust removal box 1, the gas is sucked upward by the fan 1041 and deeply filtered through the dust bag 2. Fine dust is intercepted on the inner surface of the dust bag 2. The clean gas passes through the bag and is discharged by the fan 1041 and discharged through the ventilation holes of the sound insulation air outlet plate 1042, ensuring that the exhaust gas meets the standards while reducing noise pollution. Step 3: Vibration cleaning: When the collection box 601 is regularly dismantled to clean the collected large particles of dust, the collection box 601 is moved downward by tightening the bolts, and the push plate 606 moves downward accordingly. The movable plate 802 moves downward 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 reduction motor 701, and the output end of the reduction 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 screw rod 705, the dust bag 2 and the filter bag bottom plate 105 to move downward synchronously. When the screw rod 705 moves downward, the hexagonal nut 7052 on the top compresses the return spring 7051. When the raised part of the small cam 702 leaves the vertical shaft 703, the return spring 7051 rebounds quickly, driving the filter bag top frame 102 to reset. Through periodic vibration, the fine dust attached to the inner wall of the dust bag 2 falls off and falls into the dust collecting box 3.

[0028] The working principle of the present invention is: When the dust-laden gas is subjected to dust removal treatment, the dust-laden gas enters the connecting pipe 501 through the air guide pipe 508, and at the same time the air supply pump 5031 is started, and the inert gas (such as nitrogen) in the inert gas storage box 503 is injected into the connecting pipe 501 through the air supply pipe 502, and mixed with the dust-laden gas. When the mixed gas passes through the blade 506, it drives it to rotate, and the blade 506 drives 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 removal box 1, thereby reducing the oxygen concentration. When the mixed gas passes through the filter plate 507, the large dust particles contained in it will be filtered out. The guide inclined 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 in close contact with its surface, scraping the attached large dust particles to the bottom of the collection box 601. After that, the clean gas enters the dust removal box 1, and is deeply filtered by the dust removal bag 2 under the action of the fan 1041. The fine dust is effectively intercepted and finally discharged through the sound insulation air outlet plate 1042. When regularly cleaning the large dust particles collected in the collection box 601, the staff uses a tool 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 remove the dust accumulated inside; After the top of the collection box 601 is separated from the connecting pipe 501, the push plate 606 moves downward. At this time, the support spring 8012 expands to push the movable plate 8013 to move downward along the vertical rod 8011. The movable plate 8013 drives the movable plate 802 to move downward, so that the pressure block 8021 presses the monitoring block 8031 and triggers 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 to operate. The protruding part of the small cam 702 contacts the top of the vertical shaft 703, which pushes it. It moves downward along the guide tube 1031, and the downward moving vertical shaft 703 drives the filter bag top frame 102, the screw rod 705, the dust bag 2 and the filter bag bottom plate 105 to move downward synchronously. When the screw rod 705 moves downward, the return spring 7051 is compressed through the hexagonal nut 7052 at the top. When the raised part of the small cam 702 leaves the top of the vertical shaft 703, the return spring 7051 rebounds quickly, driving the filter bag top frame 102 to reset. Through periodic vibration, the fine dust attached to the inner wall of the dust bag 2 falls off and falls into the dust collection box 3, which is convenient for pulling out and centralized treatment.

[0029] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiment without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A dust removal device for dust explosion prevention, comprising a dust removal box (1), a plurality of dust removal bags (2) inside, and a dust explosion prevention processing mechanism (4), wherein the tops of the plurality of dust removal bags (2) are all mounted with filter bag top frames (102) by screws, a filter bag bottom plate (105) is provided at the bottoms of the plurality of dust removal bags (2) in the dust removal box (1), and an air inlet pipe (106) is connected to the bottom of the side wall of the dust removal box (1), characterized in that: A vibration pipe rack (103) is fixed inside the dust removal box (1) above the filter bag top frame (102), and a pull-out dust collection box (3) is provided at the inner bottom of the dust removal box (1) below the filter bag bottom plate (105); The processing mechanism (4) is composed 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 pipe frame (103) through the vibration component (7). The gas mixing component (5) is connected to the dust removal 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 preliminarily remove large particles of dust. The scraping component (6) is arranged below the gas mixing component (5) and scrapes the filtered large particles of dust. The vibration component (7) is used to periodically vibrate the dust bag (2) after the scraping component (6) is removed to remove fine dust attached to the inner wall.

2. The dust removal equipment for dust explosion prevention according to claim 1, characterized in that: The gas mixing assembly (5) comprises a connecting pipe (501) and an inert gas storage box (503), one end of the connecting pipe (501) is threadedly sealed with the air inlet pipe (106), the other end of the connecting pipe (501) is threadedly sealed with an air guide pipe (508), the air guide pipe (508) is connected to the dust conveying pipe, the inert gas storage box (503) is fixed to the outer wall of the dust removal box (1) by screws, the upper surface of one end of the connecting pipe (501) close to the air guide pipe (508) is connected to the air supply pipe (502), an air supply pump (5031) is installed inside the inert gas storage box (503), and the other end of the air supply pipe (502) passes through the inert gas storage box (503) and is connected to the output port of the air supply pump (5031).

3. The dust removal equipment for dust explosion prevention according to claim 2, characterized in that: A shaft (504) is provided at the inner center of the connecting tube (501), and a blade (506) is fixed to the outer wall of one end of the shaft (504) close to the air supply tube (502). A bracket (505) is sleeved on the shaft (504), and the bracket (505) is fixedly connected to the inner wall of the connecting tube (501). A filter plate (507) is fixed to the other end of the shaft (504), and the outer wall of the filter plate (507) is in contact with the inner wall of the connecting tube (501) and is in sliding connection.

4. The dust removal equipment for dust explosion prevention according to claim 1, characterized in that: The scraping assembly (6) includes a collecting box (601), the top of the collecting box (601) matches the outer wall of the connecting pipe (501) provided in the gas mixing assembly (5), the lower surface of the connecting pipe (501) and the top of the collecting box (601) are both provided with matching openings, a scraper (602) is vertically fixed inside the collecting box (601), the top of the scraper (602) extends through the opening into the connecting pipe (501), and the scraper (602) contacts the filter plate (507) provided in the gas mixing assembly (5); A flow guide inclined plate (603) is welded at the opening of the connecting pipe (501).

5. The dust removal equipment for dust explosion prevention according to claim 4, characterized in that: Arc-shaped top plates (604) are welded to the tops of both outer walls of the collecting box (601), and the two 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), and the two arc-shaped top plates (604) and the arc-shaped mounting plate (605) are fixedly connected by bolts.

6. The dust removal equipment for dust explosion prevention according to claim 1, characterized in that: The outer wall of the dust removal box (1) is located on one side of the air inlet pipe (106) and is fixed with a side plate (8); a movable plate (802) is provided on the side of the side plate (8) close to 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); and a pressure block (8021) is fixed on the lower surface of the movable plate (802) at the monitoring block (8031).

7. The dust removal equipment for dust explosion prevention according to claim 6, characterized in that: 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 supporting spring (8012) sleeved on the outside of the vertical rod (8011) is provided on the movable plate (8013), a section of the movable plate (802) is fixedly connected to the movable plate (8013), and a push plate (606) is welded to the outer wall of the collection box (601) provided in the scraping assembly (6) near the dust removal box (1), and the upper surface of the push plate (606) is in contact with the lower surface of the movable plate (802).

8. The dust removal equipment for dust explosion prevention according to claim 6, characterized in that: The vibration assembly (7) includes a reduction motor (701), the pressure sensor (8032) is connected to the reduction motor (701) via a wirelessly connected controller, the output shaft sleeve of the reduction motor (701) is provided with a small cam (702), the reduction motor (701) is mounted on the upper surface of the vibration pipe frame (103) via screws, the vibration pipe frame (103) is integrally provided with a guide tube (1031), a vertical shaft (703) is passed through the guide tube (1031), the bottom end of the vertical shaft (703) is fixedly connected to the filter bag top frame (102), and the raised portion of the small cam (702) is in contact with the outer wall of the vertical shaft (703); Screw rods (705) are provided at the four corners of the upper surfaces of the filter bag top frame (102) and the vibration tube frame (103), and a hexagonal nut (7052) is installed at the bottom and top of each screw rod (705). A return spring (7051) is provided outside the screw rod (705) on the upper surface of the vibration tube frame (103), and the bottom end of each return spring (7051) is in contact with the upper surface of the vibration tube frame (103), and the top end of each return spring (7051) is in contact with the hexagonal nut (7052).

9. The dust removal equipment for dust explosion prevention according to claim 1, characterized in that: A partition (104) is fixed on the vibration pipe frame (103) inside the dust removal box (1), a fan (1041) is installed on the upper surface of the partition (104), and a sound insulation air outlet plate (1042) is installed on the top of the dust removal box (1), and ventilation holes are provided on the sound insulation air outlet plate (1042).

10. A dust removal method for dust explosion-proof dust removal equipment according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: gas mixing. The dust-laden gas to be treated is introduced into the dust removal box (1) through the air inlet pipe (106). At the same time, the inert gas is released from the inert gas storage box (503) to mix with the dust-laden gas. The mixed gas then passes through the blade (506) to drive the blade (506) to rotate, and the filter plate (507) is driven to rotate through the shaft (504), 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 been initially filtered, it enters the dust removal box (1). The fan (1041) draws the gas upwards and the gas passes through the dust bag (2) for deep filtration. Fine dust is intercepted on the inner surface of the dust 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 sound insulation air outlet plate (1042). This ensures that the exhaust gas meets the standards while reducing noise pollution. Step 3: Vibration cleaning: When the collection box (601) is regularly dismantled to clean the collected large particles of dust, the collection box (601) is moved downward by turning the bolt, and the push plate (606) moves downward accordingly. The movable plate (802) moves downward 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 reduction motor (701), and the output end of the reduction motor (701) pushes the vertical shaft (703) downward through the small cam (702), and the vertical shaft (703) drives the filter bag top frame (102), the screw rod (705), the dust bag (2) and the filter bag bottom plate (105) to move downward synchronously. When the screw rod (705) moves downward, the hexagonal nut (7052) on the top compresses the reset spring (7051), and when the protrusion of the small cam (702) leaves the vertical shaft (703), the reset spring (7051) rebounds quickly, driving the filter bag top frame (102) to reset, and the fine dust attached to the inner wall of the dust bag (2) falls off through periodic vibration and falls into the dust collection box (3).

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