A convenient bag dust collector for metallurgical casting

Abstract

The present invention relates to the field of dust separation technology, and in particular to a bag dust collector that is easy to clean for metallurgical casting. The present invention provides such a bag dust collector that is easy to clean for metallurgical casting, including a base frame, an outer frame, a dust hopper, a dust exhaust pipe, an air inlet pipe, an air outlet pipe, a support plate and a bag. The top of the base frame is connected to the outer frame, the bottom of the outer frame is connected and connected to the dust hopper, the bottom of the dust hopper is connected and connected to the dust exhaust pipe, and the lower left side of the outer frame is connected and connected to the air inlet pipe. The nozzle and the nozzle are driven downward by an electric slide rail to extend into the interior of the bag, ensuring that the compressed gas can evenly cover the entire inner surface of the bag, especially the lower area of ​​the bag, avoiding the problem of cleaning dead corners in traditional cleaning methods, and significantly improving the cleaning effect; because the nozzle is spraying inside the bag, the airflow will not directly impact the surface of the bag, reducing the physical wear of the bag and extending the service life of the bag.

Description

Technical Field

[0001] The invention relates to the technical field of dust separation, and in particular to a conveniently cleaned bag dust collector for metallurgical casting. Background Art

[0002] In the metallurgical and foundry industries, production processes such as smelting, pouring, grinding, cutting, etc. will release a large amount of metal dust, oxide particles and other harmful substances. These pollutants not only pose a threat to the environment, but also may endanger the health of workers. In order to meet this challenge, bag filters filter these dusty gases, effectively capture and remove the particles in them, and ensure that the exhaust gas discharged into the atmosphere meets environmental protection standards.

[0003] Traditional bag filters usually use compressed air to clean the bag from top to bottom. This method uses high-pressure airflow to impact the outer surface or inside of the bag, causing the attached dust to fall off. However, this method has certain limitations: since the airflow is concentrated in the upper area of ​​the bag, the cleaning effect is uneven, especially for bags with longer lengths, the dust in the lower part is difficult to be effectively removed, and it is easy to form the so-called "dead corner of cleaning". In addition, when the high-pressure airflow directly impacts the bag, it may cause local deformation or wear of the bag, especially in the case of frequent cleaning, which will accelerate the aging of the bag and shorten its service life. Summary of the invention

[0004] In order to overcome the above-mentioned shortcomings, the object of the present invention is to provide a bag dust collector that is easy to clean for metallurgical casting.

[0005] The technical implementation scheme of the present invention is: a bag dust collector for metallurgical casting with convenient cleaning, including a base frame, an outer frame, a dust hopper, a dust exhaust pipe, an air inlet pipe, an air outlet pipe, a support plate and a bag. The top of the base frame is connected to the outer frame, the bottom of the outer frame is connected and connected to the dust hopper, the bottom of the dust hopper is connected and connected to the dust exhaust pipe, the lower left side of the outer frame is connected and connected to the air inlet pipe, the upper right side of the outer frame is connected and connected to the air outlet pipe, the inner middle of the outer frame is connected to a support plate, and a plurality of cylindrical bags are evenly arranged and connected on the support plate. The upper and lower ends of the bags are open, and the upper end thereof is high The degree is lower than that of the air outlet pipe, and it also includes an air pump, a hose, a ventilation frame, an electric slide rail, a nozzle and a nozzle. Air pumps are installed on both side walls of the upper part of the outer frame, and an electric slide rail is symmetrically installed on the left wall of the upper inner part of the outer frame. The electric slide rail is slidably connected with a ventilation frame, and a hose is connected to the air pump. The tail end of the hose penetrates into the outer frame and is connected with the corresponding ventilation frame. The ventilation frame is located at the top of the outer frame, and a plurality of nozzles are rotatably connected to the bottom of the ventilation frame at equal intervals. A nozzle with a three-way port is installed at the bottom of the nozzle, and the nozzle is located above the cloth bag and is aimed at each cloth bag one by one.

[0006] As a preferred technical solution of the present invention, it also includes two electric slide rails, an isolation plate, a cross bar, a baffle, a torsion spring, a vertical bar and a partition plate. Two electric slide rails are installed in the middle of the left side wall of the upper inner part of the outer frame. The two electric slide rails are slidably connected with an isolation plate. The isolation plate is located between the two ventilation frames. The lower left side and the upper right side of the isolation plate are connected with cross bars. The middle of the inner ports of the air inlet pipe and the air outlet pipe are rotatably connected with baffles. Torsion springs are connected between the upper and lower ends of the baffle and the air inlet pipe or the air outlet pipe. Vertical bars are connected to both walls of the baffle. The cross bars are in contact and cooperate with the vertical bars on the same horizontal plane. A partition plate is connected in the middle of the dust hopper.

[0007] As a preferred technical solution of the present invention, it also includes support rods and screw rods. Several support rods are connected to the upper inner side of the outer frame at equal intervals, and screw rods are connected to the outer side of the nozzle. The screw rods are threadedly connected to the corresponding support rods.

[0008] As a preferred technical solution of the present invention, it also includes a sealing ring and a limiting rod. The lower end of the nozzle is located below the support rod and is sleeved with a sealing ring for sealing the upper end of the cloth bag. The top of the sealing ring is arranged in a rectangular shape and connected to four limiting rods. The limiting rods are slidably matched with the support rod.

[0009] As a preferred technical solution of the present invention, a gravity block is provided inside the sealing ring to increase the gravity of the sealing ring.

[0010] As a preferred technical solution of the present invention, it also includes a sleeve block, an expansion rod, an inclined block and a return spring. The lower end of the nozzle is located below the sealing ring and is connected to the sleeve block. A plurality of expansion rods are evenly and slidably connected to the sleeve block along the circumferential direction. The tops of the expansion rods are connected to inclined blocks. Return springs are connected between the expansion rods and the inside of the sleeve block. The gravity of the sealing ring is greater than the elastic force of the return spring. An annular groove is provided at the bottom of the sealing ring, and the inclined block is snap-fitted with the annular groove.

[0011] As a preferred technical solution of the present invention, it also includes a support tube, a motor, a pattern block, a rotating rod, a knocking rod, a buffer spring, a disc and a protrusion. The support tube is connected to the dust exhaust pipe, and the motor is installed on the front side of the dust exhaust pipe. The support tube is rotatably connected with the pattern block, and the motor output shaft passes through the support tube and is connected to the pattern block. The rear end of the pattern block is connected to the rotating rod, and the rotating rod passes through the support tube. The rear side of the support tube is symmetrically slidably connected with the knocking rod, and the knocking end of the knocking rod is in contact with the support tube. A buffer spring is connected between the knocking rod and the support tube, and a disc is connected to the rear side of the rotating rod. A plurality of protrusions are connected at intervals on the upper edge of the rear side wall of the disc, and the protrusions are in contact with the knocking rod.

[0012] As a preferred technical solution of the present invention, it also includes a rotating shaft, a bevel gear, a flapping plate, a rotating block and a hinged rod. Each side of the outer wall of the dust collecting hopper is rotatably connected to a rotating shaft, and a flapping plate is connected to the rotating shaft. Both ends of the rotating shaft are connected to bevel gears, and two adjacent bevel gears are meshed with each other. The lower end of the flapping plate on the front side is rotatably connected to the rotating block, and the rotating block is rotatably connected to the hinged rod, and the lower end of the hinged rod is rotatably connected to the upper end of the rotating rod.

[0013] The beneficial effects of the present invention are as follows: 1. The electric slide rail drives the nozzle and the nozzle to move downward and extend into the bag, ensuring that the compressed gas can evenly cover the entire inner surface of the bag, especially the lower area of ​​the bag, avoiding the problem of dead corners in traditional cleaning methods and significantly improving the cleaning effect.

[0014] 2. Since the nozzle is spraying inside the bag, the airflow will not directly impact the surface of the bag, reducing the physical wear of the bag. In addition, this built-in spray system simplifies the maintenance process and realizes convenient cleaning, making the cleaning and maintenance of the filter bag more efficient and time-saving, reducing downtime.

[0015] 3. Through the design of the isolation plate, the internal chamber of the outer frame is divided into two parts, front and back. During the cleaning process, the front and back chambers are cleaned one by one, and the equipment can still keep half of the bags working normally, ensuring the continuous operation of the equipment without affecting the production process.

[0016] 4. During cleaning, the sealing ring is put on the upper port of the bag to effectively prevent the dust in the bag from flowing back, ensuring the thoroughness of cleaning and the cleanliness of the equipment. At the same time, the expansion rod is set to fully expand the bag during the cleaning process, so that the gas sprayed from the nozzle can act more evenly on the inside of the bag, further improving the cleaning quality and ensuring that the dust can be discharged smoothly from the lower port.

[0017] 5. By setting the pattern block in the dust exhaust pipe, the collected dust can be continuously transported in the dust exhaust pipe, and the gas inside the outer frame can be effectively prevented from being discharged through the dust exhaust pipe, thereby enhancing the sealing and dust removal efficiency of the system. The rotation of the pattern block not only promotes the transmission of dust, but also transmits its power to the disc and the protrusion. The protrusion structure pushes the knocking rod to knock the support cylinder, avoiding dust sticking to the pattern block, thus ensuring the high efficiency of the dust removal process.

[0018] 6. The outer wall of the dust hopper is equipped with multiple flapping plates, which swing inwards and outwards to hit the dust hopper, effectively preventing the dust from adhering to the inner wall of the dust hopper, ensuring that the dust can fall into the dust exhaust pipe smoothly and evenly, further improving the dust removal efficiency, and also maintaining the long-term stable operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the supporting plate, cloth bag, ventilation frame and other components of the present invention;

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the air pump, hose, ventilation frame and other components of the present invention;

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the baffle, torsion spring, partition plate and other components of the present invention;

[0023] Figure 5 It is a three-dimensional structural schematic diagram of the electric slide rail 2, the isolation plate and the crossbar component of the present invention;

[0024] Figure 6 It is a three-dimensional structural schematic diagram of the baffle, torsion spring and vertical rod components of the present invention;

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the support rod, screw rod, outer frame and other components of the present invention;

[0026] Figure 8 It is a three-dimensional structural schematic diagram of the supporting rod, screw rod, nozzle and other components of the present invention;

[0027] Fig. 9 It is a schematic diagram of the three-dimensional structure of the sealing ring, the limiting rod and the supporting rod and other components of the present invention;

[0028] Fig.10 It is a three-dimensional structural schematic diagram of the sleeve block, expansion support rod, return spring and other components of the present invention;

[0029] Fig.11 It is a three-dimensional structural schematic diagram of the sealing ring, the limiting rod and the annular groove component of the present invention;

[0030] Fig.12 It is a three-dimensional structural schematic diagram of the sleeve block, expansion support rod and inclined block and other components of the present invention;

[0031] Fig.13 It is a three-dimensional structural schematic diagram of the supporting cylinder, motor, and pattern block of the present invention;

[0032] Fig.14 It is a three-dimensional structural schematic diagram of the components such as the rotating shaft, bevel gear and flapping plate of the present invention.

[0033] Figure numbers: 1: bottom frame, 101: outer frame, 102: dust bucket, 103: dust exhaust pipe, 104: air inlet pipe, 105: air outlet pipe, 106: support plate, 107: bag, 201: air pump, 202: hose, 203: ventilation frame, 204: electric slide rail 1, 205: nozzle, 206: nozzle, 301: electric slide rail 2, 302: isolation plate, 303: cross bar, 304: baffle, 305: torsion spring, 306: vertical bar, 307: partition plate, 401 : Support rod, 402: Screw rod, 501: Sealing ring, 502: Limit rod, 601: Bushing block, 602: Expanding support rod, 603: Oblique block, 604: Return spring, 605: Annular groove, 701: Support cylinder, 702: Motor, 703: Flower block, 704: Rotating rod, 705: Beating rod, 706: Buffer spring, 707: Disc, 708: Protrusion, 801: Rotating shaft, 802: Bevel gear, 803: Beating plate, 804: Rotating block, 805: Articulated rod. DETAILED DESCRIPTION

[0034] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0035] Example 1: A bag dust collector for metallurgical casting with convenient cleaning, such as Figure 1-Figure 3As shown, it includes a base frame 1, an outer frame 101, a dust hopper 102, a dust exhaust pipe 103, an air inlet pipe 104, an air outlet pipe 105, a support plate 106, a cloth bag 107, an air pump 201, a hose 202, a ventilation frame 203, an electric slide rail 204, a nozzle 205 and a nozzle 206. The top of the base frame 1 is connected to the outer frame 101, the bottom of the outer frame 101 is connected and connected to the dust hopper 102, and the bottom of the dust hopper 102 is connected and connected to the dust exhaust pipe 103 The lower left side of the outer frame 101 is connected to an air inlet pipe 104 through a flange, which is responsible for introducing the dust-containing gas to be treated. The upper right side of the outer frame 101 is connected to an air outlet pipe 105 through a flange, which is used to discharge the clean air after filtering. The inner middle part of the outer frame 101 is connected to a support plate 106 through bolts. A number of cylindrical bags 107 for separating dust and air are evenly arranged and connected to the support plate 106 at intervals. The upper and lower ends of the bags 107 are open, and the upper end The height of the outlet is lower than the air outlet pipe 105. An air pump 201 is installed on the front and rear side walls of the upper part of the outer frame 101 by bolts. An electric slide rail 204 is symmetrically installed on the left side wall of the upper part of the outer frame 101 by bolts. A ventilation frame 203 is slidably connected to the electric slide rail 204. A hose 202 is connected to the air pump 201. The tail end of the hose 202 penetrates into the outer frame 101 and is connected to the corresponding ventilation frame 203. The hose 202 is elastic and can adapt to the change of the position of the ventilation frame 203. The material has a certain toughness and can avoid mutual entanglement. The ventilation frame 203 is located at the top of the outer frame 101. A plurality of nozzles 205 are rotatably connected to the bottom of the ventilation frame 203 at equal intervals. A three-way nozzle 206 is installed at the bottom of the nozzle 205. The nozzle 206 is located above the cloth bag 107 and is aimed at each cloth bag 107 one by one to spray compressed gas into the inside of the cloth bag 107 to achieve the purpose of cleaning.

[0036] The dust-laden gas enters the outer frame 101 through the air inlet pipe 104, and then contacts the bag 107 on the support plate 106, and enters the interior through the lower port of the bag 107. In this process, larger particles hit the surface of the filter bag due to inertia and are intercepted, and smaller particles are also captured due to diffusion, electrostatic adsorption and other mechanisms. The purified air passes through the bag 107 upward, flows out from the upper port, and is finally discharged through the air outlet pipe 105. As time goes by, a certain amount of dust will accumulate on the surface of the bag 107, causing the pores to gradually decrease, increasing the air flow resistance, thereby affecting the dust removal efficiency. At this time, it is necessary to perform dust cleaning operations regularly. When cleaning, first start the air pump 201 and the electric slide rail 204. The air pump 201 draws external air and sends it into the ventilation frame 203 through the hose 202, and then it is sprayed from the nozzle 206 through the nozzle 205. At the same time, after the electric slide rail 204 is started, it will drive the ventilation frame 203, the nozzle 205 and the nozzle 206 to move downward, and the nozzle 206 accurately extends into the interior of the bag 107. The high-pressure airflow released by the nozzle 206 directly impacts the inner wall of the bag 107, causing the attached dust to fall off and fall into the dust collecting hopper 102 below, and then fall into the dust exhaust pipe 103. This not only realizes convenient cleaning, but also reduces the physical damage to the bag 107. After the dust cleaning is completed, the air pump 201 is turned off, and the electric slide rail 204 is controlled to drive the ventilation frame 203, the nozzle 205 and the nozzle 206 to move upward and reset to the initial position to restore the normal dust removal working state. When the operation is completed or the collected dust needs to be cleaned, the valve of the dust exhaust pipe 103 is opened, and the dust in the dust collecting hopper 102 can be easily discharged to keep the system clean and efficient.

[0037] Embodiment 2: Based on embodiment 1, Figure 4-Figure 6 As shown, it also includes an electric slide rail 2 301, an isolation plate 302, a cross bar 303, a baffle 304, a torsion spring 305, a vertical bar 306 and a partition plate 307. Two electric slide rails 2 301 are installed in the middle of the left side wall of the upper part of the outer frame 101 by bolts. The electric slide rails 2 301 are slidably connected with the isolation plate 302. The isolation plate 302 is located between the two ventilation frames 203. The isolation plate 302 moves downward and is inserted between the cloth bags 107, which can divide the interior of the outer frame 101 into two front and rear chambers. The lower left side of the isolation plate 302 and the upper right side of the isolation plate 302 are connected. A cross bar 303 is welded on both sides, a baffle 304 is rotatably connected in the middle of the inner ports of the air inlet pipe 104 and the air outlet pipe 105, a torsion spring 305 is connected between the upper and lower ends of the baffle 304 and the air inlet pipe 104 or the air outlet pipe 105, a vertical bar 306 is welded on the front and rear walls of the baffle 304, the cross bar 303 is in contact with the vertical bar 306 on the same horizontal plane, a partition plate 307 is connected in the middle of the dust hopper 102, the partition plate 307 divides the interior of the dust hopper 102 into two front and rear chambers, and the isolation plate 302 can move downward to contact the partition plate 307.

[0038] When dust cleaning is required, the two isolation plates 302 can separate the chamber of the outer frame 101 into two chambers, front and back. When cleaning the cloth bag 107 in one chamber, the cloth bag 107 on the other side can be used normally. During actual operation, the electric slide rail 2 301 on one side is controlled to start, driving the corresponding isolation plate 302 and cross bar 303 to move downward until the isolation plate 302 is inserted between the cloth bags 107 and contacts the partition plate 307. At this time, the interior of the outer frame 101 is divided into two independent chambers, front and back. During the downward movement of the cross bar 303, it will contact the corresponding vertical rod 306, thereby pushing the vertical rod 306 and the baffle 304 to rotate, and the torsion spring 305 will be deformed accordingly. After the baffle 304 rotates, it blocks half of the ports of the inlet pipe 104 and the outlet pipe 105, so that the gas can only enter the corresponding side through the inlet pipe 104. The cleaned air can only be discharged from the air outlet pipe 105 in the chamber on this side. After the isolation plate 302 is accurately moved to the position, the air pump 201 and the electric slide rail 1 204 are started to clean the cloth bags 107 on one side, and the cloth bags 107 on the other side clean the gas normally, so that the equipment keeps running. After the cleaning of the cloth bags 107 on one side is completed, the electric slide rail 2 301 can be controlled to drive the corresponding isolation plate 302 and the cross bar 303 to move upward and reset. After the cross bar 303 is separated from the vertical bar 306, the partition plate 307 is reversed and reset under the reset action of the torsion spring 305, and the normal airflow path is restored. The cloth bags 107 on the other side can be cleaned next time. According to the above operation, the cloth bags 107 on both sides can be cleaned one by one without interrupting the operation of the equipment, so as to ensure that the equipment always maintains efficient operation.

[0039] like Figure 7-Figure 8 As shown, it also includes a support rod 401 and a screw 402. A plurality of support rods 401 are welded at equal intervals on the inner upper side of the outer frame 101. The outer side of the nozzle 205 is connected to a screw 402. The screw 402 is threadedly connected to the corresponding support rod 401. The nozzle 205 moves downward with the screw 402. Through the cooperation of the screw 402 and the support rod 401, the screw 402 can move downward and rotate at the same time, thereby rotating the nozzle 205 and the nozzle 206, thereby improving the uniformity of the compressed gas when spraying inside the bag 107, and further improving the cleaning effect.

[0040] like Fig. 9As shown, it also includes a sealing ring 501 and a limiting rod 502. The lower end of the nozzle 205 is located below the support rod 401 and is sleeved with a sealing ring 501. A gravity block is arranged inside the sealing ring 501 to increase the gravity of the sealing ring 501. Four limiting rods 502 are welded on the top of the sealing ring 501 in a rectangular arrangement. The limiting rods 502 are slidably matched with the support rod 401. The sealing ring 501 and the limiting rod 502 cannot rotate due to the limitation of the support rod 401. The size of the sealing ring 501 fits the size of the upper port of the cloth bag 107. When the nozzle 205 moves downward with the screw 402 and the nozzle 206, the screw 402, the nozzle 205 and the nozzle 206 rotate downward, and the sealing ring 501 It also moves downward under the action of gravity, and is limited by the limiting rod 502 and can only move downward in a straight line. After the screw 402, the nozzle 205 and the nozzle 206 enter the cloth bag 107, the sealing ring 501 is sleeved on the upper port of the cloth bag 107 due to its own gravity, thereby sealing the upper port, effectively preventing the dust in the cloth bag 107 from flowing back during the cleaning process, and ensuring the cleaning effect. At the end of the cleaning, the screw 402, the nozzle 205 and the nozzle 206 move upward and reset. After the nozzle 206 is separated from the upper port, the nozzle 206 continues to move upward to support the sealing ring 501 and the limiting rod 502 and move upward together to reset them, no longer blocking the upper port of the cloth bag 107, and restoring the normal airflow path.

[0041] like Figure 10-12 As shown, it also includes a sleeve block 601, an expansion rod 602, an inclined block 603 and a return spring 604. The lower end of the nozzle 205 is located below the sealing ring 501 and is welded with a sleeve block 601. A plurality of expansion rods 602 are evenly and slidably connected to the upper edge of the sleeve block 601 in a circumferential direction. The top of the expansion rod 602 is integrally formed and connected with an inclined block 603. A return spring 604 is connected between the expansion rod 602 and the inside of the sleeve block 601. The return spring 604 is initially in a compressed state, and the gravity of the sealing ring 501 is greater than the elastic force of the return spring 604. An annular groove 605 is provided at the bottom of the sealing ring 501, and the inclined block 603 is snap-fitted with the annular groove 605. The sleeve block 601 and the expansion rod 602 move downward with the nozzle 205 into the interior of the cloth bag 107, and the expansion rod 602 pops outward and fits tightly against the inner wall of the cloth bag 107, which can expand the cloth bag 107 and improve the cleaning quality.

[0042] When the sealing ring 501 moves downward with the nozzle 206, the nozzle 206 synchronously moves downward with the sleeve block 601 and the expansion rod 602. When the nozzle 206 rotates, it drives the expansion rod 602 and the inclined block 603 to rotate along the annular groove 605 at the bottom of the sealing ring 501. When the nozzle 206 extends into the cloth bag 107 and continues to move downward, the sealing ring 501 is blocked at the upper end of the cloth bag 107, and the inclined block 603 continues to move downward and disengages from the annular groove 605. At this time, the reset spring 604 rebounds and resets, driving the expansion rod 602 and the inclined block 603 to move outward, and the expansion rod 602 is close to the inner wall of the cloth bag 107 to open the cloth bag 107. The function of the expansion rod 602 is to ensure that the cloth bag 107 7 is fully expanded during the cleaning process so that the gas ejected from the nozzle 206 can evenly cover the entire inner surface of the bag 107, thereby improving the cleaning effect and ensuring that the dust can be discharged smoothly downward through the lower port. After the cleaning is completed, the nozzle 206 moves upward with the sleeve block 601, the inclined block 603 and the expansion rod 602. When the inclined block 603 contacts the annular groove 605, since the gravity of the sealing ring 501 is greater than the elastic force of the reset spring 604, the inclined block 603 is squeezed and moved inward, driving the expansion rod 602 to move inward, and the reset spring 604 is compressed accordingly, and the inclined block 603 is re-stuck in the annular groove 605. The nozzle 206 continues to move upward, supporting the sealing ring 501 to move upward and reset.

[0043] like Fig.13 As shown, it also includes a support cylinder 701, a motor 702, a flower block 703, a rotating rod 704, a knocking rod 705, a buffer spring 706, a disc 707 and a protrusion 708. The dust exhaust pipe 103 is connected with the support cylinder 701, the front side of the dust exhaust pipe 103 is installed with a motor 702 by bolts, the support cylinder 701 is rotatably connected with the flower block 703, the output shaft of the motor 702 passes through the support cylinder 701 and is connected to the flower block 703, the rear end of the flower block 703 is connected with a rotating rod 704, and the rotating rod 704 passes through the support cylinder 70 1. A knocking rod 705 is symmetrically and slidably connected to the rear side of the support tube 701. The knocking end of the knocking rod 705 contacts and cooperates with the support tube 701. A buffer spring 706 is connected between the knocking rod 705 and the support tube 701. A disc 707 is connected to the rear side of the rotating rod 704. A plurality of protrusions 708 are connected at intervals along the upper edge of the rear side wall of the disc 707. The protrusions 708 contact and cooperate with the knocking rod 705, so that the knocking rod 705 is pushed to knock the support tube 701 through the protrusions 708, so as to ensure that the dust on the pattern block 703 is shaken off smoothly.

[0044] After the dust-laden gas is filtered by the bag 107, the dust falls downward into the dust hopper 102, and then enters the dust exhaust pipe 103 downward through the dust hopper 102. After starting the motor 702, the output shaft of the motor 702 drives the pattern block 703 to rotate. The pattern block 703, through its unique structural design, can not only continuously transport the collected dust downward, but also effectively prevent the gas inside the outer frame 101 from being discharged through the dust exhaust pipe 103. When the dust needs to be discharged, the valve of the dust exhaust pipe 103 is opened to discharge and collect the dust. The design of the pattern block 703 can continuously transport the collected dust, and at the same time prevent the gas inside the outer frame 101 from being discharged through the dust exhaust pipe 103. When the pattern block 703 rotates, the rotating rod 704 and the disc 707 are driven to rotate synchronously. The protrusion 708 on the disc 707 contacts the knocking rod 705, and the knocking rod 705 is repeatedly pushed back and forth by the rotation of the disc 707. The buffer spring 706 provides a reset force, so that the knocking rod 705 can be quickly reset after each knocking. The knocking rod 705 knocks on the support tube 701, and the vibration generated is transmitted to the pattern block 703 through the support tube 701, ensuring that the pattern block 703 will not have dust adhesion during the dust conveying process, thereby improving the dust removal efficiency and ensuring the long-term stable operation of the system. After the operation is completed, the motor 702 can be turned off.

[0045] like Fig.14 As shown, it also includes a rotating shaft 801, a bevel gear 802, a flapping plate 803, a rotating block 804 and a hinged rod 805. The rotating shaft 801 is rotatably connected to each side of the outer wall of the dust hopper 102, and the flapping plate 803 is connected to the rotating shaft 801. The flapping plate 803 continuously flaps the outer wall of the dust hopper 102 to prevent dust from adhering to the inner wall. Bevel gears 802 are welded at both ends of the rotating shaft 801, and the two adjacent bevel gears 802 are meshed with each other. The lower end of the flapping plate 803 on the front side is rotatably connected to the rotating block 804, and the rotating block 804 is rotatably connected to the hinged rod 805, and the lower end of the hinged rod 805 is rotatably connected to the upper end of the rotating rod 704.

[0046] As the rotating block 804 continues to rotate, the hinged rod 805 will be driven to rotate, and the hinged rod 805 will drive the rotating block 804 to rotate, and pull the front flapping plate 803 to rotate, and the rotating shaft 801 and the bevel gear 802 will form a synchronous transmission chain, thereby driving the remaining rotating shafts 801 and the flapping plates 803 to rotate synchronously, ensuring that all the flapping plates 803 perform the same swing at the same time. 05 pushes the lower end of the flapping plate 803 to rotate outward, while its inner end rotates inward and hits the dust hopper 102. When the rotating block 804 moves upward, the hinged rod 805 pulls the lower end of the flapping plate 803 to rotate inward, while its outer end faces outward and hits the dust hopper 102 again. Through this alternating inward and outward swing, the flapping plate 803 can effectively hit the outer wall of the dust hopper 102, prevent dust from adhering to the inner wall, and ensure that the dust falls evenly into the dust exhaust pipe 103.

[0047] It should be understood that this embodiment is only used to illustrate the present invention and is not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope limited by the appended claims of the application.

Claims

1. A bag dust collector for metallurgical casting with convenient cleaning, comprising a base frame (1), an outer frame (101), a dust hopper (102), a dust exhaust pipe (103), an air inlet pipe (104), an air outlet pipe (105), a support plate (106) and a bag (107), wherein the top of the base frame (1) is connected to the outer frame (101), the bottom of the outer frame (101) is connected to and communicated with the dust hopper (102), the bottom of the dust hopper (102) is connected to and communicated with the dust exhaust pipe (103), an air inlet pipe (104), an air outlet pipe (105), a support plate (106) and a bag (107), wherein the top of the base frame (1) is connected to the outer frame (101), the bottom of the outer frame (101) is connected to and communicated with the dust hopper (102), and the bottom of the dust hopper (102) is connected to and communicated with the dust exhaust pipe (103). The outer frame (101) is connected to the left side of the lower part and communicated with an air inlet pipe (104), the upper part of the outer frame (101) is connected to the right side of the upper part and communicated with an air outlet pipe (105), the inner middle part of the outer frame (101) is connected to a support plate (106), and a plurality of cylindrical cloth bags (107) are evenly arranged and connected to the support plate (106) at intervals, the upper and lower ends of the cloth bags (107) are open, and the height of the upper end thereof is lower than the air outlet pipe (105), characterized in that: The apparatus also includes an air pump (201), a hose (202), a ventilation frame (203), an electric slide rail (204), a nozzle (205) and a nozzle (206). The air pump (201) is installed on both side walls of the upper part of the outer frame (101). The electric slide rail (204) is symmetrically installed on the left side wall of the upper part of the outer frame (101). The electric slide rail (204) is slidably connected to the ventilation frame (203). The air pump (201) is connected to the hose (202). The rear end of the hose (202) penetrates into the outer frame (101) and is connected to the corresponding ventilation frame (203). The ventilation frame (203) is located at the top of the inner part of the outer frame (101). The bottom of the ventilation frame (203) is rotatably connected with a plurality of nozzles (205) at equal intervals, and the bottom of the nozzles (205) is equipped with a three-way nozzle (206), and the nozzle (206) is located above the cloth bag (107) and is aimed at each cloth bag (107) one by one; it also includes an electric slide rail (301), an isolation plate (302), a cross bar (303), a baffle (304), a torsion spring (305), a vertical bar (306) and a partition plate (307), and two electric slide rails (301) are installed in the middle of the left side wall of the upper inner part of the outer frame (101), and the electric slide rails (301) are slidably connected with the isolation plate (302). ), the isolation plate (302) is located between the two ventilation frames (203), the lower left side and the upper right side of the isolation plate (302) are both connected to a cross bar (303), the middle of the inner ports of the air inlet pipe (104) and the air outlet pipe (105) are both rotatably connected to a baffle (304), the upper and lower ends of the baffle (304) and the air inlet pipe (104) or the air outlet pipe (105) are both connected to a torsion spring (305), both walls of the baffle (304) are connected to a vertical bar (306), the cross bar (303) is in contact with the vertical bar (306) on the same horizontal plane, and a partition plate (307) is connected in the middle of the dust bucket (102); and also includes a support rod (401) and a screw (402), a plurality of support rods (401) are connected to the inner upper side of the outer frame (101) at equal intervals, the outer side of the nozzle (205) is connected to a screw (402), and the screw (402) is threadedly connected to the corresponding support rod (401); it also includes a sealing ring (501) and a limiting rod (502), the lower end of the nozzle (205) is located below the support rod (401) and is sleeved with a sealing ring (501) for sealing the upper end of the cloth bag (107), and the top of the sealing ring (501) is connected to four limiting rods (502) arranged in a rectangular shape, and the limiting rod (502) and the support rod (401) are slidably matched;It also includes a sleeve block (601), a spreading rod (602), an inclined block (603) and a return spring (604); the lower end of the nozzle (205) located below the sealing ring (501) is connected to the sleeve block (601); a plurality of spreading rods (602) are evenly and slidably connected to the sleeve block (601) along the circumferential direction; the tops of the spreading rods (602) are connected to the inclined blocks (603); the spreading rods (602) and the inside of the sleeve block (601) are connected to the return spring (604); the gravity of the sealing ring (501) is greater than the elastic force of the return spring (604); the bottom of the sealing ring (501) is provided with an annular groove (605); the inclined block (603) is engaged with the annular groove (605). ; 2. A bag dust collector for metallurgical casting with convenient cleaning according to claim 1, characterized in that: A gravity block is provided inside the sealing ring (501) to increase the gravity of the sealing ring (501).

3. A bag dust collector for metallurgical casting with convenient cleaning according to claim 2, characterized in that: The invention also comprises a support tube (701), a motor (702), a pattern block (703), a rotating rod (704), a knocking rod (705), a buffer spring (706), a disc (707) and a protrusion (708); the dust exhaust pipe (103) is connected with the support tube (701); the front side of the dust exhaust pipe (103) is equipped with a motor (702); the support tube (701) is rotatably connected with the pattern block (703); the output shaft of the motor (702) passes through the support tube (701) and is connected to the pattern block (703); the rear end of the pattern block (703) is connected to the support tube (701); A rotating rod (704) is connected, the rotating rod (704) passes through the supporting tube (701), a striking rod (705) is symmetrically slidably connected to the rear side of the supporting tube (701), the striking end of the striking rod (705) is in contact with the supporting tube (701), a buffer spring (706) is connected between the striking rod (705) and the supporting tube (701), a disc (707) is connected to the rear side of the rotating rod (704), a plurality of protrusions (708) are connected at intervals on the upper edge of the rear side wall of the disc (707), and the protrusions (708) are in contact with the striking rod (705).

4. A bag dust collector for metallurgical casting with convenient cleaning according to claim 3, characterized in that: The utility model also comprises a rotating shaft (801), a bevel gear (802), a flapping plate (803), a rotating block (804) and a hinged rod (805). Each side of the outer wall of the dust collecting bucket (102) is rotatably connected to the rotating shaft (801), the flapping plate (803) is connected to the rotating shaft (801), both ends of the rotating shaft (801) are connected to the bevel gear (802), and two adjacent bevel gears (802) are meshed with each other. The lower end of the flapping plate (803) on the front side is rotatably connected to the rotating block (804), the rotating block (804) is rotatably connected to the hinged rod (805), and the lower end of the hinged rod (805) is rotatably connected to the upper end of the rotating rod (704).

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