Coated sand boiling bed cyclone dust removal equipment

Abstract

This invention relates to the field of coated sand regeneration dust removal technology, and discloses a coated sand fluidized bed cyclone dust collector, including a shell, a waste box fixedly connected to the top of the shell, a cyclone cylinder fixedly connected to the top of the waste box, an air supply mechanism installed on one side of the top of the cyclone cylinder, a top cover fixedly connected to the top of the air supply mechanism, an adsorption mechanism installed on the top of the top cover, and a discharge cylinder. This coated sand fluidized bed cyclone dust collector, through an indirect discharge mechanism, an anti-adsorption and shaking mechanism, a rotary dust removal mechanism, and an air duct guiding mechanism, achieves intermittent lifting and sealing of the discharge cylinder, intermittent discharge, and, in conjunction with a linkage vibration anti-blocking mechanism, a cylinder wall rotation self-cleaning mechanism, and a forced swirl guiding structure, stabilizes the internal airflow and improves the dust separation effect. The entire machine adopts an integrated mechanical linkage design, resulting in low manufacturing costs, effectively improving dust removal accuracy and sand recovery rate, and is suitable for large-scale continuous regeneration dust removal operations of coated sand.

Description

Technical Field

[0001] This invention relates to the field of coated sand regeneration and dust removal technology, and in particular to a coated sand fluidized bed cyclone dust collector. Background Technology

[0002] The fluidized bed regeneration process for coated sand is the core step in the recycling and reuse of foundry sand. It mainly uses fluidized bed hot air convection and particle friction to peel off the aged resin film and dust impurities from the surface of the old sand, thereby achieving the recycling and reuse of coated sand.

[0003] During the fluidized bed operation, a large amount of mixed waste gas containing fine sand particles, resin debris and dust will be continuously generated. It is necessary to use a cyclone dust collector to separate solid and gas to ensure the cleanliness of the production line and the recycling rate of sand.

[0004] Currently, existing coated sand fluidized bed cyclone dust collectors are mainly divided into two types: conventional gravity direct discharge type and external vibratory improved type. They mostly adopt fixed straight cylinder feeding and conventional gravity airlock operation mode. In actual production, compared with the structure of this invention, there are obvious technical defects. The feeding port is open for a long time or continuously slightly open, without a long-term airlock design. The opening and closing method of the feeding port is simple, which can easily cause backflow of external airflow and turbulence of the cyclone field inside the cylinder. Dust cannot be effectively settled by centrifugal force, so the sand material accumulated at the bottom is easily carried by the reverse airflow and floats up again, making it difficult to guarantee the sorting accuracy. This invention achieves long-term airlock and short-term intermittent unloading, stabilizes the wind pressure cyclone field inside the cylinder, and eliminates secondary dust caused by backflow of airflow. At the same time, the feeding structure of existing equipment is simple. After long-term accumulation of dust, it is easy to bridge and clump at the feeding port or cause problems such as hanging material accumulation, agglomeration and blockage, and material retention. Frequent shutdowns and manual unblocking are required, which is difficult to adapt to large-scale continuous production.

[0005] Secondly, existing equipment lacks a linkage anti-sticking and unblocking structure adapted to dust adhesion. The basic model relies solely on gravity for natural material discharge, while the improved model only adds an independent external vibrating motor to the outside of the ash hopper. The inner wall of the cyclone lacks self-cleaning scraping components, and the external vibrator can only slightly vibrate the ash hopper, failing to clean the inner wall of the cyclone cone section. Dust continuously adheres to the wall, resulting in excessive material accumulation on the cylinder wall over long-term operation, narrowing the airflow channel and weakening the centrifugal separation effect. The external vibrator is an independent power source, adding extra energy consumption and electrical control costs. The vibrating force is singular and cannot specifically shake off dust adhering to the unloading cone surface. The unloading and vibrating mechanisms are independent and lack linkage, resulting in low automation. Existing equipment has independent drive motors for the unloading, vibrating, and guiding functions, leading to high energy consumption, complex transmission components, and a high equipment failure rate due to the simultaneous operation of multiple power sources. The actions of each mechanism lack synchronous linkage logic, and the unloading, dust cleaning, and other processes cannot coordinate, resulting in poor overall machine stability. Summary of the Invention

[0006] The technical problem to be solved by the present invention is that the existing technology has the disadvantages of easy turbulence of the swirl field, large amount of dust escape, easy material accumulation on the cylinder wall, and easy blockage of the feed. To this end, we propose a membrane sand fluidized bed cyclone dust removal device.

[0007] To achieve the above objectives, this application adopts the following technical solution: a membrane-coated fluidized bed cyclone dust collector, comprising a shell, a waste box fixedly connected to the top of the shell, a cyclone tube fixedly connected to the top of the waste box, an air supply mechanism installed on one side of the top of the cyclone tube, a top cover fixedly connected to the top of the cyclone tube, an adsorption mechanism installed on the top of the top cover, and also including a discharge cylinder.

[0008] The housing is equipped with an indirect discharge mechanism, which includes a motor fixedly connected to the top of the housing. A cylinder is rotatably connected to the top of the housing, and a protruding rod is fixedly connected to the inner wall of the cylinder. The protruding rod driven by the motor cooperates with a groove opened on the surface of the discharge cylinder to drive the discharge cylinder to intermittently rise and fall to open and close the discharge port of the cyclone.

[0009] An anti-adsorption and shock-drop mechanism is provided, which includes a striking rod that stores energy as the unloading cylinder rises and falls, and releases elastic force to generate a striking vibration during the rising and falling of the unloading cylinder.

[0010] A rotary dust removal mechanism includes a shaft connected to a motor drive and a spiral guide plate fixed to the surface of the shaft, the guide plate rotating in contact with the inner wall of the cyclone.

[0011] The air duct guiding mechanism includes a spoiler that rotates in conjunction with a shaft to guide the incoming airflow in a vortex-like motion.

[0012] Preferably, the indirect discharge mechanism includes:

[0013] The output end of the motor is fixedly connected to a first pinion, and the bottom of the first pinion is fixedly connected to a second large gear. A cylinder is rotatably connected to the top of the housing, and a protruding rod is fixedly connected to the inner wall of the cylinder. One side of the first pinion meshes with the surface of the protruding rod. A long arc groove is formed on the surface of the unloading cylinder, and a short arc groove is formed on the other side of the surface of the unloading cylinder. An inclined groove is formed between the two ends of the long arc groove and the short arc groove. Both the long arc groove and the short arc groove are circumferentially formed along the surface of the unloading cylinder. There is a height difference between the long arc groove and the short arc groove. The top of the unloading cylinder is a conical structure. The four sides of the unloading cylinder are slidably connected to the bottom of the waste box through a slider groove. The bottom of the adsorption mechanism is rotatably connected to a suction tube through a bearing.

[0014] Preferably, the anti-adsorption and anti-fall mechanism includes:

[0015] A support cylinder is fixedly connected to the inside of the housing. Several toothed plates are fixedly connected to the top surface of the support cylinder. Several rotating gears are rotatably connected inside the unloading cylinder. An eccentric rod is fixedly connected between two of the rotating gears. Several T-shaped frame rods are slidably connected up and down inside the unloading cylinder. The eccentric rod is slidably connected to the bottom of the T-shaped frame rod. A striking rod is fixedly connected to the top of the T-shaped frame rod. A spring is fixedly connected to the bottom of the striking rod. The bottom of the spring is fixedly connected to the inner wall of the unloading cylinder.

[0016] Preferably, the rotary dust removal mechanism includes:

[0017] The shaft is rotatably connected to the inner wall of the support cylinder. The top of the shaft is fixedly connected to the inner wall of the adsorption mechanism. A third gear is fixedly connected to the bottom of the shaft. One side of the second large gear meshes with the surface of the third gear.

[0018] Preferably, the air duct guiding mechanism includes:

[0019] The small toothed ring plate is fixedly connected to the outer side of the top of the suction tube. The two sides of the bottom of the top cover are rotatably connected to the upper gears through brackets. The bottom of the upper gears is fixedly connected to the lower gears. The top of the cyclone tube is rotatably connected to the rotating plate. The middle part of the rotating plate is rotatably connected to the outer side of the suction tube through a bearing. The baffle is fixedly connected to the bottom of the rotating plate. The top of the baffle is fixedly connected to the large toothed ring plate.

[0020] Preferably, the waste box is provided with cabinet doors on both sides, and the cabinet doors are made of transparent tempered glass.

[0021] Preferably, the guide plate is conical and spiral in shape and fits against the inner wall of the cyclone, and the guide plate is spirally arranged along the surface of the shaft by multiple extension rods.

[0022] Preferably, the inner diameter of the T-shaped frame rod is larger than the circumferential rotation diameter of the eccentric rod.

[0023] The technical effects and advantages of this invention are as follows:

[0024] In this invention, an indirect discharge mechanism is used, and the discharge cylinder is periodically raised and lowered to reset, achieving intermittent opening and closing of the discharge port at the bottom of the cyclone cylinder with long-term sealing and short-term discharge. This completely improves the defects of traditional gravity-locked air structure, such as easy air leakage, backflow of airflow, and disordered vortex field. This structure can stably lock the air and maintain pressure under continuous dust removal conditions, effectively preventing the bottom sand from being carried up again by the rebound airflow, greatly improving the dust settling efficiency of coated sand and the sand recovery rate. At the same time, the conical surface at the top of the discharge cylinder guides the accumulated sand to slide smoothly into the waste box, effectively preventing the material from accumulating and clogging at the discharge port, and ensuring continuous and stable material discharge from the equipment.

[0025] In this invention, relying on the meshing transmission of the toothed plate and the self-rotating gear, and the eccentric structure of the eccentric rod combined with the spring force rebound, bidirectional automatic knocking vibration can be achieved throughout the entire process of the unloading cylinder moving down to unload and moving up to reset. This can efficiently shake off the sticky resin dust adsorbed and adhered to the conical surface of the unloading cylinder, and specifically solve the industry pain points of coated sand being easy to adhere, easy to clump, and easy to clog holes. The structure is fully mechanically linked and driven by a unified motor without the need for additional power. There is no need for manual shutdown to clean up the accumulated material, which significantly reduces the workload of equipment maintenance and the frequency of production downtime, and effectively improves the automated continuous operation capability of the equipment.

[0026] In this invention, the existing motor power system of the equipment synchronously drives the first pinion, second large gear, and third gear for transmission, resulting in low energy consumption and strong linkage. The conical spiral guide plate continuously adheres to the inner wall of the cyclone and rotates to scrape the wall, thoroughly removing the dust accumulated on the inner wall. At the same time, the spiral trajectory guides the sand to spiral down along the cylinder wall, enhancing the centrifugal separation effect. Combined with the top baffle plate and baffle air guide structure, the internal vortex air path of the cyclone can be stabilized, and the centrifugal force can be enhanced to achieve thorough sand separation, preventing the sand from floating and escaping with the central airflow of the suction cylinder. This significantly improves the dust removal accuracy and sand purification quality of the equipment, and can fully adapt to the needs of large-scale, high-precision regeneration dust removal production of coated sand fluidized bed.

[0027] In this invention, a single motor drives four mechanisms simultaneously: material discharge, shaking, rotary self-cleaning, and air duct guidance. The coordinated operation of these four mechanisms achieves unloading and airlocking, material shaking and blockage clearing, dust scraping from the cylinder wall, and airflow swirl to assist in dust separation. Each process is coordinated and driven, and the integrated collaborative transmission reduces the need for additional power configuration, significantly reducing the overall energy consumption and manufacturing cost of the equipment. This solves the problems of high energy consumption and increased manufacturing costs associated with traditional equipment that uses multiple mechanisms with independent drives. Furthermore, the intermittent material discharge and airlocking, shaking and anti-blockage, and active swirl structure significantly improve dust removal accuracy and sand recovery rate, making it suitable for continuous large-scale regeneration of coated sand. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0029] Figure 2 This is a sectional view of the top vertical cross-section of the main body of the present invention;

[0030] Figure 3 For the present invention Figure 2 Enlarged view of the structure at point A in the middle;

[0031] Figure 4 This is a sectional view of the bottom vertical cross-section structure of the main body of the present invention;

[0032] Figure 5 For the present invention Figure 4 Enlarged view of the structure at point B in the middle;

[0033] Figure 6 This is an exploded view of part of the anti-adsorption and shaking mechanism of the present invention;

[0034] Figure 7 This is an exploded view of the unloading cylinder and swirl cylinder positions and structures of the present invention;

[0035] Figure 8 This is an exploded view of a portion of the rotary dust removal mechanism of the present invention;

[0036] Figure 9 This is a schematic diagram of the top structure of the present invention.

[0037] Legend: 1. Shell; 2. Waste box; 3. Cyclone; 4. Air supply mechanism; 5. Top cover; 6. Adsorption mechanism; 7. Unloading cylinder; 8. Motor; 9. First pinion; 10. Second large gear; 11. Cylinder; 12. Protruding rod; 13. Large arc groove; 14. Small arc groove; 15. Inclined groove; 16. Suction cylinder; 17. Support cylinder; 18. Gear plate; 19. Rotating gear; 20. Eccentric rod; 21. T-shaped frame rod; 22. Striking rod; 23. Spring; 24. Shaft; 25. Third gear; 26. Guide plate; 27. Small gear ring plate; 28. Upper gear; 29. ​​Lower gear; 30. Rotating plate; 31. Baffle plate; 32. Large gear ring plate; 33. Cabinet door. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the invention in a schematic manner, and therefore only show the components relevant to the invention.

[0039] Reference Figure 1 - Figure 9 As shown, the present invention provides a coated sand fluidized bed cyclone dust collector, including a shell 1, a waste box 2 fixedly connected to the top of the shell 1, a cyclone 3 fixedly connected to the top of the waste box 2, an air supply mechanism 4 installed on one side of the top of the cyclone 3, a top cover 5 fixedly connected to the top of the air supply mechanism 4, an adsorption mechanism 6 installed on the top of the top cover 5, and a discharge cylinder 7.

[0040] Reference Figure 1As shown, cabinet doors 33 are provided on both sides of the waste box 2. The cabinet doors 33 are made of transparent tempered glass. The transparent glass material of the cabinet doors 33 allows the staff to directly observe the waste collection inside the waste box 2, which is convenient for the staff to clean up the accumulated waste in a timely manner and avoid excessive waste accumulation affecting the dust removal effect of the equipment. At the same time, the transparent tempered glass has sufficient structural strength and corrosion resistance, which can adapt to the dusty working environment inside the equipment. It is not easily worn or scratched by wind and sand, and can maintain a transparent observation effect for a long time without the need to frequently replace the observation parts, thus reducing the cost and workload of daily maintenance of the equipment.

[0041] The housing 1 is equipped with an indirect discharge mechanism, which includes a motor 8 fixedly connected to the top of the housing 1. A cylinder 11 is rotatably connected to the top of the housing 1, and a protruding rod 12 is fixedly connected to the inner wall of the cylinder 11. The indirect discharge mechanism uses the top conical surface of the discharge cylinder 7 to block the discharge port of the cyclone 3. As the discharge cylinder 7 descends and resets intermittently, the outlet is briefly opened to discharge material and then closed, realizing the brief opening and sealing of the discharge port to prevent the airflow from carrying the bottom sand material upward.

[0042] Specifically, refer to Figure 1 - Figure 7 As shown, the indirect material discharge mechanism includes:

[0043] A first pinion 9 is fixedly connected to the output end of the motor 8, and a second large gear 10 is fixedly connected to the bottom of the first pinion 9. A cylinder 11 is rotatably connected to the top of the housing 1, and a protruding rod 12 is fixedly connected to the inner wall of the cylinder 11. One side of the first pinion 9 meshes with the surface of the protruding rod 12. A long arc groove 13 is opened on the surface of the unloading cylinder 7, and a short arc groove 14 is opened on the other side of the surface of the unloading cylinder 7. An inclined groove 15 is opened between the two ends of the long arc groove 13 and the short arc groove 14. Both the long arc groove 13 and the short arc groove 14 are circumferentially opened along the surface of the unloading cylinder 7. There is a height difference between the long arc groove 13 and the short arc groove 14. The top of the unloading cylinder 7 is a conical structure. The four sides of the unloading cylinder 7 are slidably connected to the bottom of the waste box 2 through the slider groove. The bottom of the adsorption mechanism 6 is rotatably connected to the suction tube 16 through the bearing.

[0044] The exhaust gas from the fluidized bed is connected to the air supply mechanism 4. The dust-laden exhaust gas discharged from the fluidized bed is introduced into the cyclone 3 by the air supply mechanism 4. The exhaust gas spirals down inside the cyclone 3. Combined with the centrifugal force generated by the rotation, large sand particles are thrown against the inner wall of the cyclone 3 and fall down the wall. The falling sand eventually accumulates at the top of the discharge cylinder 7. After the airflow hits the bottom, it rebounds and is then sucked out by the suction force generated by the adsorption mechanism 6 connected to the suction cylinder 16.

[0045] During this period, the motor 8 runs synchronously, driving the first pinion 9 to rotate. The first pinion 9 drives the cylinder 11 to rotate. When the cylinder 11 rotates, the protruding rod 12 slides along the inner wall of the large arc groove 13. The unloading cylinder 7 is connected to the bottom of the waste box 2 by sliding up and down. This causes the protruding rod 12 to slide along the inner wall of the large arc groove 13, the small arc groove 14 and the inclined groove 15. The inclined groove 15 is opened along the surface of the unloading cylinder 7 to connect the large arc groove 13 and the small arc groove 14. The connection between the inclined groove 15 and the large arc groove 13 is lower than the connection between the inclined groove 15 and the small arc groove 14.

[0046] This causes the protruding rod 12 to rotate and slide along the large arc groove 13. At this time, the height of the unloading cylinder 7 remains unchanged. Then, the protruding rod 12 slides into the small arc groove 14 through the inclined groove 15, thereby pressing the unloading cylinder 7 to move downward as a whole. After that, the protruding rod 12 slides along the inner wall of the small arc groove 14 for a certain distance, and then slides into the large arc groove 13 along the inclined groove 15 on the other side. Then the unloading cylinder 7 resets and rises. The above process is repeated, so that the unloading cylinder 7 can move up and down periodically under the cyclic push of the protruding rod 12. The bottom of the cyclone 3 is opened and closed intermittently, which prevents the large sand particles accumulated at the top of the cone-shaped unloading cylinder 7 from accumulating and agglomerating at the top of the unloading cylinder 7. This ensures that the large sand particles fall smoothly into the waste box 2 below. At the same time, the rapid reset does not hinder the normal rebound and rise of the airflow, maintaining the stable operation of the cyclone dust collector.

[0047] The arc of the large arc groove 13 is greater than that of the small arc groove 14. This makes the travel time of the protruding rod 12 along the large arc groove 13 longer than that along the small arc groove 14. This allows the unloading cylinder 7 to be in the top position for a long time to close the bottom of the cyclone 3, and in the lower position for a short time to unload. During the continuous rotation of the cylinder 11, the air supply mechanism 4 continuously delivers air and dust into the cyclone 3, realizing the intermittent opening and closing of the unloading cylinder 7. Because the top of the unloading cylinder 7 is a cone, the downward airflow in the open state will break along the surface of the unloading cylinder 7, blowing the sand and dust remaining on the surface of the unloading cylinder 7 into the waste box 2.

[0048] Furthermore, the coated sand fluidized bed cyclone dust collector also includes an anti-adsorption and shaking mechanism. The anti-adsorption and shaking mechanism is connected to the indirect discharge mechanism so that after the discharge cylinder 7 moves down to open the discharge, the knocking rod 22 inside the discharge cylinder 7 generates knocking vibration, which shakes off the adsorbed sand on the surface of the discharge cylinder 7 to prevent the sand from clumping and sticking together and causing blockage.

[0049] Reference Figure 4 - Figure 6 As shown in this implementation plan, the anti-adsorption and shaking mechanism includes:

[0050] A support cylinder 17 is fixedly connected to the inside of the housing 1. Several toothed plates 18 are fixedly connected to the top surface of the support cylinder 17. Several rotating gears 19 are rotatably connected inside the unloading cylinder 7. An eccentric rod 20 is fixedly connected between two rotating gears 19. Several T-shaped frame rods 21 are slidably connected up and down inside the unloading cylinder 7. The eccentric rod 20 is slidably connected to the bottom of the T-shaped frame rod 21. A striking rod 22 is fixedly connected to the top of the T-shaped frame rod 21. A spring 23 is fixedly connected to the bottom of the striking rod 22. The bottom of the spring 23 is fixedly connected to the inner wall of the unloading cylinder 7.

[0051] When the cylinder 11 rotates, it drives the protruding rod 12 to slide along the inner wall of the large arc groove 13 and enter the small arc groove 14 through the inclined groove 15. The unloading cylinder 7 moves downward. When the unloading cylinder 7 moves downward, it drives multiple rotating gears 19 to move downward synchronously with the striking rod 22, the T-shaped frame rod 21, and the spring 23. This causes the rotating gear 19 to contact and mesh with the toothed plate 18 on one side when it moves downward. Then, it briefly meshes for a distance, which drives the rotating gear 19 to rotate. Utilizing the eccentric installation position of the eccentric rod 20, in the initial position, the T-shaped frame rod 21 and the striking rod 22 are always at the top due to the elastic force of the spring 23. The eccentric rod 20 is also at the bottom of the rotating gear 19, following the T-shaped frame rod 21.

[0052] When the rotating gear 19 rotates, the eccentric rod 20 begins to move downwards a certain distance, causing the eccentric rod 20 to drive the T-shaped frame rod 21 and the striking rod 22 to move downwards, compressing the spring 23 to store force. During the last distance of the downward movement of the unloading cylinder 7, the rotating gear 19 will disengage from the toothed plate 18. At this time, the position of the rotating gear 19 is no longer restricted by the toothed plate 18, and the spring 23 will rebound upwards, driving the striking rod 22 to strike the inner wall of the unloading cylinder 7. At the same time, it will drive the rotating gear 19, the eccentric rod 20, and the T-shaped frame rod 21 to synchronously reset to their initial positions.

[0053] When the unloading cylinder 7 returns to its original position and moves upward, the rotating gear 19 will mesh with the toothed plate 18 again. Unlike before, the rotating gear 19 will rotate in the opposite direction at this time, driving the spring 23 to store power for the second time and then disengaging from the toothed plate 18, so that the striking rod 22 can strike the unloading cylinder 7 again.

[0054] This knocking action forces the top conical surface of the discharge cylinder 7 to vibrate, shaking off the coated sand dust adhering to the inner wall of the conical surface. This prevents fine dust from accumulating and clogging the cylinder over a long period, ensuring that the dust separated by the cyclone during the dust removal process can fall smoothly into the waste box 2. It will not be blocked by accumulated material and will maintain the stable and continuous coated sand dust removal operation of the equipment.

[0055] Furthermore, refer to Figure 6As shown, the inner diameter of the T-shaped frame rod 21 is larger than the circumferential rotation diameter of the eccentric rod 20. By reserving sufficient space for the eccentric rotation of the eccentric rod 20, friction and jamming between the eccentric rod 20 and the inner sides of the T-shaped frame rod 21 during rotation are prevented, ensuring a complete and smooth eccentric downward stroke and allowing the spring 23 to fully store elastic force. After the self-rotating gear 19 disengages from its meshing constraint, the spring 23 rebounds, driving the striking rod 22 to impact and strike without interference. The striking force is sufficient to reliably shake off the sand adhering to the surface of the unloading cylinder 7. At the same time, it can offset the coaxiality error of machining and assembly, reduce abnormal noise from component wear, and improve the operational stability of the anti-adsorption and shaking mechanism.

[0056] Furthermore, the coated sand fluidized bed cyclone dust collector also includes a rotary dust removal mechanism, which is connected to the indirect discharge mechanism. The rotary dust removal mechanism includes a shaft 24 connected to the motor 8 and a spiral guide plate 26 fixed on the surface of the shaft 24. The guide plate 26 rotates against the inner wall of the cyclone 3 to clean the inclined inner wall of the cyclone 3, and at the same time, it follows the rotation trajectory of the air path to guide the sand material affected by centrifugal force to be discharged along the outer spiral.

[0057] Reference Figure 2 , Figure 5 and Figure 8 As shown in this embodiment, the rotary dust removal mechanism includes:

[0058] Shaft 24 is rotatably connected to the inner wall of support cylinder 17. The top of shaft 24 is fixedly connected to the inner wall of adsorption mechanism 6. The bottom of shaft 24 is fixedly connected to third gear 25. One side of second large gear 10 meshes with the surface of third gear 25.

[0059] When the motor 8 is running, the first pinion 9 rotates synchronously, driving the second large gear 10 to rotate. The second large gear 10 meshes with the third gear 25 for transmission, causing the third gear 25 and the shaft 24 to rotate continuously. The rotation of the shaft 24 drives the guide plate 26 to rotate synchronously, which causes the guide plate 26 to slide against the inclined surface of the inner cavity of the cyclone 3. It uses its own spiral trajectory to guide the sand and dust falling along the surface of the cyclone 3 downwards into the surface of the unloading cylinder 7. At the same time, the guide plate 26 continuously rubs and cleans the inclined surface of the cyclone 3 during rotation, preventing the sand and dust from adhering to the inner wall of the cyclone 3 and failing to fall normally.

[0060] Furthermore, the second large gear 10 and the third gear 25 adopt a large-small gear ratio transmission, so that the third gear 25 rotates multiple times for the second large gear 10 to rotate once, thus accelerating the rotation efficiency of the shaft 24 and the guide plate 26.

[0061] The spiral trajectory of the guide plate 26 is consistent with the rotational trajectory of the dust entering the cyclone 3 through the air supply mechanism 4, thereby guiding the dust to move spirally for a second time, generating centrifugal force to throw out the sand and dust in the wind, improving the separation efficiency of the coated sand and dust, allowing the clean airflow to be discharged upward along the central channel, while the separated sand and dust are continuously transported downward under the centrifugal force and the guidance of the guide plate 26, preventing the sand and dust from escaping upward with the airflow and ensuring the dust removal accuracy of the equipment.

[0062] Furthermore, refer to Figure 8 As shown, the guide plate 26 is conical and spiral in shape and fits against the inner wall of the cyclone 3. The guide plate 26 is spirally arranged along the surface of the shaft 24 by multiple extension rods. The guide plate 26 is fixedly installed on the outer wall of the shaft 24 by the spiral arrangement of multiple extension rods. The multiple extension rods provide multiple points of uniform support for the guide plate 26, which improves the overall structural strength, resists the impact of dust-laden airflow and falling sand, avoids the guide plate 26 from shaking or deforming, and ensures that the guide plate 26 always fits tightly against the inner wall of the cyclone 3 for wall scraping and cleaning operations.

[0063] Furthermore, the extension rod has a small cross-section and low airflow resistance, which will not interfere with the swirling flow field inside the cyclone 3. It can continuously scrape off the coated sand dust adhering to the cylinder wall, preventing the accumulated material from sticking to the wall, and can also guide and transport the sand material with the help of the spiral surface, so that the separated particles can slide smoothly down the cylinder wall to the top surface of the unloading cylinder 7, thereby enhancing the efficiency of cyclone dust removal and sorting.

[0064] The optimized membrane sand fluidized bed cyclone dust collector also includes an air duct guiding mechanism, which is connected to the indirect discharge mechanism. The air duct guiding mechanism includes a baffle plate 31 that rotates in conjunction with the shaft 24 to guide the incoming airflow to move in a vortex shape, so that it generates a continuous airflow from top to bottom to guide the incoming dust, which moves in a vortex shape along a predetermined trajectory to generate centrifugal force.

[0065] Reference Figure 2 , Figure 3 , Figure 8 and Figure 9 As shown in this implementation plan, the air duct guiding mechanism includes:

[0066] Small gear ring plate 27 is fixedly connected to the outer side of the top of the suction tube 16. The two sides of the bottom of the top cover 5 are rotatably connected to the upper gear 28 through the bracket. The bottom of the upper gear 28 is fixedly connected to the lower gear 29. The top of the cyclone tube 3 is rotatably connected to the rotating plate 30. The middle part of the rotating plate 30 is rotatably connected to the outer side of the suction tube 16 through the bearing. The baffle plate 31 is fixedly connected to the bottom of the rotating plate 30. The top of the baffle plate 31 is fixedly connected to the large gear ring plate 32.

[0067] When the shaft 24 rotates, it drives the guide plate 26 and the suction tube 16 to rotate synchronously. The suction tube 16 rotates along the bottom of the adsorption mechanism 6. At the same time, the suction tube 16 drives the small gear ring plate 27 to rotate, which in turn drives the upper gear 28 to rotate. This causes the lower gear 29 at the bottom of the upper gear 28 to rotate as well. Finally, the rotation of the lower gear 29 drives the large gear ring plate 32 and the rotating plate 30 to rotate along the outside of the suction tube 16. This causes multiple baffles 31 to rotate with it, generating a downward airflow that blows the dust that enters the cyclone tube 3 through the air supply mechanism 4 downward, guiding it to flow in a spiral shape inside the cyclone tube 3.

[0068] By utilizing the gear ratio between the upper gear 28 and the lower gear 29, the lower gear 29 can drive the rotating plate 30 and the large gear ring plate 32 to rotate multiple times when the upper gear 28 rotates once. This increases the rotation speed of the baffle plate 31, enabling faster delivery of downward airflow, strengthening the centrifugal force of the spiral flow, and further enhancing the centrifugal separation effect of sand and dust. At the same time, no additional independent power source is required. The wind path guidance can be achieved by relying on the existing rotating structure of the equipment, reducing the overall energy consumption and structural complexity of the equipment.

[0069] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A membrane-coated fluidized bed cyclone dust collector, comprising a shell (1), characterized in that: The top of the housing (1) is fixedly connected to a waste box (2), the top of the waste box (2) is fixedly connected to a cyclone separator (3), a blower mechanism (4) is installed on one side of the top of the cyclone separator (3), a top cover (5) is fixedly connected to the top of the cyclone separator (3), an adsorption mechanism (6) is installed on the top of the top cover (5), and a discharge cylinder (7) is also included. The housing (1) is provided with an indirect discharge mechanism. The indirect discharge mechanism includes a motor (8) fixedly connected to the top of the housing (1). A cylinder (11) is rotatably connected to the top of the housing (1). A protruding rod (12) is fixedly connected to the inner wall of the cylinder (11). The protruding rod (12) driven by the motor (8) cooperates with the groove opened on the surface of the discharge cylinder (7) to drive the discharge cylinder (7) to intermittently rise and fall to open and close the discharge port of the cyclone (3). The anti-adsorption and shock-drop mechanism includes a striking rod (22) that stores energy as the unloading cylinder (7) rises and falls, and releases elastic force to generate a striking vibration during the rising and falling of the unloading cylinder (7). The rotary dust removal mechanism includes a shaft (24) that is connected to the motor (8) and a spiral guide plate (26) fixed on the surface of the shaft (24). The guide plate (26) rotates in contact with the inner wall of the cyclone (3). The air duct guiding mechanism includes a spoiler (31) that rotates in conjunction with the shaft (24) to guide the incoming airflow to move in a vortex shape.

2. The membrane-coated fluidized bed cyclone dust collector according to claim 1, characterized in that: The indirect material discharge mechanism includes: The output end of the motor (8) is fixedly connected to a first pinion (9), and the bottom of the first pinion (9) is fixedly connected to a second large gear (10). The top of the housing (1) is rotatably connected to a cylinder (11), and the inner wall of the cylinder (11) is fixedly connected to a protruding rod (12). One side of the first pinion (9) meshes with the surface of the protruding rod (12). The surface of the unloading cylinder (7) is provided with a long arc groove (13), and the other side of the surface of the unloading cylinder (7) is provided with a short arc groove (14). 4) Inclined grooves (15) are provided between the two ends of the long arc groove (13) and the short arc groove (14). The long arc groove (13) and the short arc groove (14) are both opened in a ring along the surface of the unloading cylinder (7). There is a height difference between the long arc groove (13) and the short arc groove (14). The top of the unloading cylinder (7) is a conical structure. The four sides of the unloading cylinder (7) are slidably connected to the bottom of the waste box (2) through the slider groove. The bottom of the adsorption mechanism (6) is rotatably connected to the suction cylinder (16) through the bearing.

3. The membrane-coated fluidized bed cyclone dust collector according to claim 2, characterized in that: The anti-adsorption and shaking-off mechanism includes: A support cylinder (17) is fixedly connected to the inside of the housing (1). Several toothed plates (18) are fixedly connected to the top surface of the support cylinder (17). Several rotating gears (19) are rotatably connected inside the unloading cylinder (7). An eccentric rod (20) is fixedly connected between two of the rotating gears (19). Several T-shaped frame rods (21) are slidably connected up and down inside the unloading cylinder (7). The eccentric rod (20) is slidably connected to the bottom of the T-shaped frame rod (21). The striking rod (22) is fixedly connected to the top of the T-shaped frame rod (21). A spring (23) is fixedly connected to the bottom of the striking rod (22). The bottom of the spring (23) is fixedly connected to the inner wall of the unloading cylinder (7).

4. A membrane-coated fluidized bed cyclone dust collector according to claim 2 or 3, characterized in that: The rotary dust removal mechanism includes: A shaft (24) is rotatably connected to the inner wall of the support cylinder (17). The top of the shaft (24) is fixedly connected to the inner wall of the adsorption mechanism (6). A third gear (25) is fixedly connected to the bottom of the shaft (24). One side of the second large gear (10) meshes with the surface of the third gear (25).

5. The membrane-coated fluidized bed cyclone dust collector according to claim 4, characterized in that: The air duct guiding mechanism includes: Small gear ring plate (27), the small gear ring plate (27) is fixedly connected to the outer side of the top of the suction tube (16), the two sides of the bottom of the top cover (5) are rotatably connected to the upper gear (28) through the bracket, the bottom of the upper gear (28) is fixedly connected to the lower gear (29), the top of the cyclone tube (3) is rotatably connected to the rotating plate (30), the middle part of the rotating plate (30) is rotatably connected to the outer side of the suction tube (16) through the bearing, the baffle plate (31) is fixedly connected to the bottom of the rotating plate (30), and the top of the baffle plate (31) is fixedly connected to the large gear ring plate (32).

6. The membrane-coated fluidized bed cyclone dust collector according to claim 1, characterized in that: The waste box (2) is provided with cabinet doors (33) on both sides, and the cabinet doors (33) are made of transparent tempered glass.

7. The membrane-coated fluidized bed cyclone dust collector according to claim 4, characterized in that: The guide plate (26) is conical and spiral in shape and fits against the inner wall of the cyclone tube (3). The guide plate (26) is spirally arranged along the surface of the shaft (24) by multiple extension rods.

8. The membrane-coated fluidized bed cyclone dust collector according to claim 3, characterized in that: The inner diameter of the T-shaped frame rod (21) is greater than the circumferential rotation diameter of the eccentric rod (20).

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