Low-resistance cyclone filter bag composite dust removal equipment

Abstract

This invention relates to the field of industrial environmental dust removal, and discloses a low-resistance cyclone filter bag composite dust removal device, including a fixed support. A cyclone separation chamber is fixedly installed in the lower inner part of the fixed support, and a filter chamber is fixedly installed in the upper inner part of the fixed support. A lower isolation plate is fixedly installed inside the cyclone separation chamber, and a conical cyclone cylinder is fixedly installed in the middle of the lower isolation plate. A spiral guide cone is fixedly installed on the inner wall of the conical cyclone cylinder. Several dust discharge ports are evenly opened on the side wall of the conical cyclone cylinder. An air inlet pipe is fixedly installed at the outer end of each of the two dust discharge ports, and the end of each air inlet pipe extends to the outside of the cyclone separation chamber. The two air inlet pipes are arranged symmetrically and tangentially. This invention achieves high-efficiency dust removal, low resistance and energy saving, eliminates circulating pollution, extends filter bag life, has a compact structure, stable operation, wide applicability, and is environmentally friendly and economical through graded dust removal, uniform airflow distribution, and a composite dust removal structure.

Description

Technical Field

[0001] This invention relates to the field of industrial environmental dust removal, specifically a low-resistance cyclone filter bag composite dust removal device. Background Technology

[0002] In industrial production processes, the emission of dust-laden gases can severely pollute the environment and endanger human health. Therefore, dust removal equipment has become a core piece of equipment in the field of industrial environmental protection, and is widely used in various dust-generating industries such as mining, building materials, and chemicals. Currently, commonly used dust removal equipment in industry is mainly divided into two categories: cyclone dust collectors and bag filters. However, both have significant drawbacks and cannot simultaneously meet the requirements of dust removal efficiency, operating resistance, and equipment lifespan.

[0003] Traditional cyclone dust collectors, with their advantages of simple structure and low cost, are mostly used for the primary separation of coarse dust particles. However, their collection efficiency for smaller dust particles is extremely low, making it difficult to meet current stringent environmental emission standards. Furthermore, they are prone to generating upward circulation and short-circuit flow during operation, leading to turbulent airflow, high pressure loss, and high energy consumption. While bag filters can efficiently intercept fine dust and achieve fine filtration, they must withstand the impact of the entire dust-laden gas, resulting in a heavy load on the filter bags, easy clogging, and low cleaning efficiency due to the single pulse-jet cleaning method. This can easily lead to dust residue and recirculation pollution, causing the filter bags to wear out too quickly and resulting in high maintenance costs.

[0004] Existing composite dust collection equipment attempts to combine the advantages of both methods, but most suffer from unreasonable structural designs, uneven airflow distribution, and poor integration between cyclone separation and filter bag filtration. High-speed airflow can directly erode the filter bags, further shortening their lifespan. Simultaneously, the cleaning structure is simplistic, making it difficult to thoroughly remove accumulated dust from the filter bags, and problems such as dust backflow and recirculation pollution exist. Furthermore, some composite equipment suffers from excessively high operating resistance and high energy consumption during long-term operation, failing to meet the demands for treating high-concentration, multi-particle-size dust-laden gases and thus failing to meet the development needs of efficient, energy-saving, and environmentally friendly industrial production. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a low-resistance cyclone filter bag composite dust removal device, which solves the problems of low dust removal efficiency, high operating resistance, easy wear of filter bags, incomplete dust cleaning, and circulating pollution in traditional dust removal equipment, making it difficult to achieve both high efficiency and energy saving.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a low-resistance cyclone filter bag composite dust removal device, comprising a fixed support, a cyclone separation chamber fixedly installed in the lower inner part of the fixed support, a filter chamber fixedly installed in the upper inner part of the fixed support, a lower isolation plate fixedly installed inside the cyclone separation chamber, a conical cyclone cylinder fixedly installed in the middle of the lower isolation plate, a spiral guide cone fixedly installed on the inner wall of the conical cyclone cylinder, and a plurality of dust discharge ports evenly opened on the side wall of the conical cyclone cylinder, with an air inlet pipe fixedly installed at the outer ends of both dust discharge ports. The ends of both extend to the outside of the cyclone separation chamber. The two air inlet pipes are arranged symmetrically and tangentially. An upper isolation plate is fixedly installed inside the filter chamber. Several bag cages are evenly fixedly installed in the middle of the upper isolation plate. Dust collector bags are fixedly installed inside each bag cage. A spiral diverter pipe is fixedly installed inside the filter chamber between the lower and upper isolation plates. Several air outlets are evenly opened on the surface of the spiral diverter pipe. A guide plate is fixedly installed inside the spiral diverter pipe near each air outlet, and the width of the guide plate gradually increases with the spiral direction of the spiral diverter pipe.

[0007] Preferably, a conical air hood is fixedly installed at the top of the conical cyclone body, and the input end of the spiral diverter is fixedly installed at the top of the conical air hood.

[0008] Preferably, an air inlet short pipe is fixedly installed on the surface of the spiral diverter near each air outlet, and the top end of each air inlet short pipe is connected to the interior of the dust collector bag on the corresponding side.

[0009] Preferably, each of the dust collector bags is fixedly installed with a bent branch pipe at its bottom, the bottom end of each of the spiral diversion pipes is fixedly installed at the top of the return pipe, and rubber pistons are fixedly installed on both sides of the left end of the filter chamber, with the ends of the return pipes extending into the interior of the rubber pistons.

[0010] Preferably, a drive shaft is movably mounted on the left end of the filter chamber near the upper position of the rubber piston. One end of the drive shaft is fixedly mounted on the drive end of the geared motor. Cams are fixedly mounted on the outer diameter of both sides of the drive shaft. A connecting rod is movably mounted on the middle of each cam, and the ends of the connecting rods are movably mounted on the top of the corresponding side of the rubber piston.

[0011] Preferably, a dust discharge pipe is fixedly installed in the middle of each of the rubber pistons, and the ends of the dust discharge pipes extend to the lower interior of the cyclone separation chamber. A one-way valve is fixedly installed inside each of the air inlet short pipe, the bent branch pipe, and the dust discharge pipe.

[0012] Preferably, a worm gear is fixedly installed on the outer diameter of the middle part of the drive shaft, a short shaft is movably installed in the middle of the left end of the filter chamber, a worm wheel is fixedly installed on the outer end of the short shaft and the worm wheel is meshed with the inner end of the worm gear, and the inner end of the short shaft extends into the interior of the filter chamber and is fixedly installed with a first chuck.

[0013] Preferably, a movable plate is movably installed inside the filter chamber. A second chuck is fixedly installed at one end of the movable plate. Several hemispherical protrusions are fixedly installed on the inner sides of both the first and second chucks, and the two sets of hemispherical protrusions are staggered. Through holes are opened on the surface of the movable plate at positions corresponding to each bag cage. Impact blocks are fixedly installed on both sides of the inner wall of the through holes. Both sides of the other end of the movable plate are connected to the inner wall of the filter chamber by return springs.

[0014] Preferably, a plurality of blowpipes are fixedly installed on the inner top of the filter chamber, and a plurality of diffuser nozzles are fixedly installed on the bottom end of each blowpipe, with the bottom end of each diffuser nozzle connected to the top of the dust collector bag on the corresponding side. One end of each blowpipe extends to the outside of the filter chamber and is fixedly installed on one side of the air storage tank. A pulse blow valve is fixedly installed on the outer diameter of each blowpipe. A dust hopper is fixedly installed at the bottom of the cyclone separator, and an air outlet pipe is fixedly installed on one side of the top of the filter chamber.

[0015] This invention provides a low-resistance cyclone filter bag composite dust collector. It has the following beneficial effects:

[0016] 1. This invention introduces dust-laden gas through symmetrically tangentially arranged air inlet pipes, which, together with a conical cyclone cylinder and a spiral guide cone, form a stable swirling flow field. This effectively enhances the centrifugal separation effect, reduces upper circulation, short-circuit flow, and turbulence, and can quickly separate larger dust particles through the dust outlet to the ash hopper, completing primary dust removal. The remaining fine dust enters the swirling diverter pipe with the airflow, and is guided by the guide plate to be transformed into a vertically upward uniform airflow, which smoothly enters the dust collector bag for secondary fine filtration. The fine dust is efficiently intercepted by the bag fibers, ultimately achieving efficient removal of dust of all particle sizes, significantly improving the overall dust removal efficiency, and avoiding the problem of incomplete dust removal caused by a single filtration method.

[0017] 2. This invention effectively reduces equipment operating resistance and energy consumption through multiple structural designs. On the one hand, the spiral guide cone guides the airflow downwards along a spiral trajectory, reducing resistance loss caused by airflow turbulence. On the other hand, the guide plate on the spiral diverter is designed with a width that gradually increases with the spiral direction, ensuring that the airflow is evenly distributed to each dust collector bag, avoiding increased resistance caused by excessively high local airflow velocity. At the same time, it eliminates airflow swirl, reduces flow velocity, reduces scouring of the dust collector bags, and further reduces filtration resistance.

[0018] 3. The present invention adopts a composite dust removal structure of "top blowing plus bottom suction plus middle vibration", which greatly improves the dust removal efficiency compared with the traditional single dust removal method and effectively eliminates the cycle of pollution. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the dust collector bag in this invention;

[0022] Figure 4 This is a schematic diagram of the conical cyclone cylinder body in this invention;

[0023] Figure 5 This is a schematic diagram of the spiral shunt tube in this invention;

[0024] Figure 6 This is a schematic diagram of the movable plate in this invention;

[0025] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0026] The components include: 1. Fixed support; 2. Cyclone separation chamber; 3. Filter chamber; 4. Lower isolation plate; 5. Conical cyclone body; 6. Spiral guide cone; 7. Dust discharge port; 8. Air inlet pipe; 9. Conical hood; 10. Upper isolation plate; 11. Bag cage; 12. Dust collector bag; 13. Coiled diverter pipe; 14. Air outlet; 15. Guide plate; 16. Short air inlet pipe; 17. Bent branch pipe; 18. Return pipe; 19. 20. Rubber piston; 21. Drive shaft; 22. Gear motor; 23. Cam; 24. Connecting rod; 25. Dust exhaust pipe; 26. Worm gear; 27. Short shaft; 28. Worm wheel; 29. ​​First chuck; 30. Movable plate; 31. Second chuck; 32. Through hole; 33. Impact block; 34. Return spring; 35. Blowpipe; 36. Diffuser nozzle; 37. Air storage tank; 38. Dust hopper; 39. Air outlet pipe. Detailed Implementation

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example:

[0029] Please see the appendix Figure 1 -Appendix Figure 7 This invention provides a low-resistance cyclone filter bag composite dust removal device, such as... Figure 1As shown, the system includes a fixed support 1, which serves as the installation foundation and support carrier for the entire equipment. It is used to stably fix the cyclone separation chamber 2 and the filter chamber 3, ensuring their relative position remains stable during operation. This prevents components from loosening due to equipment vibration, ensuring the overall reliability of the equipment and providing solid structural support for subsequent graded dust removal and composite dust cleaning. The cyclone separation chamber 2 is fixedly installed in the lower inner part of the fixed support 1. The cyclone separation chamber 2 is the core area for primary dust separation, used to achieve centrifugal separation of larger dust particles in the dust-laden gas, reducing the load on subsequent filter bag filtration. Its internal space design is adapted to the airflow trajectory of cyclone separation, effectively guiding the dust-laden gas to form a stable vortex and reducing airflow turbulence. A filter chamber 3 is fixedly installed in the upper part of the frame 1. The filter chamber 3 is the key area for fine dust filtration. It integrates core filtration components such as bag cages 11 and dust collector bags 12 to perform secondary filtration on the fine dust remaining after cyclone separation, ensuring that the final exhaust gas meets environmental protection standards. At the same time, it provides installation space for components such as the spiral diverter pipe 13 and the blowpipe 34. A lower partition plate 4 is fixedly installed inside the cyclone separation chamber 2. The lower partition plate 4 is used to separate the lower areas of the cyclone separation chamber 2 and the filter chamber 3, preventing dust in the cyclone separation chamber 2 from entering the lower space of the filter chamber 3. At the same time, it provides stable installation support for the conical cyclone cylinder 5, ensuring that the conical cyclone cylinder 5 remains fixed under the impact of high-speed airflow and avoiding displacement that would affect the cyclone separation effect. A conical cyclone separator 5 is fixedly installed in the middle of the lower isolation plate 4. The conical cyclone separator 5 is the core component of the cyclone separator. Its conical structure guides the dust-laden gas downwards along the cylinder wall in a spiral motion, enhancing centrifugal separation and allowing dust to separate from the airflow under centrifugal force. Simultaneously, it works with a spiral guide cone 6 to further optimize the airflow trajectory, reduce upper circulation and short-circuit flow, and lower operating resistance. A spiral guide cone 6 is fixedly installed on the inner wall of the conical cyclone separator 5. The spiral structure of the spiral guide cone 6 matches the inner wall of the conical cyclone separator 5, guiding the dust-laden gas downwards steadily along a spiral trajectory, avoiding airflow turbulence, reducing resistance loss caused by turbulence, and enhancing the centrifugal separation effect. This allows dust particles of different sizes to be initially classified under centrifugal force. For subsequent dust separation and collection, several dust discharge ports 7 are evenly distributed on the side wall of the conical cyclone body 5. The dust discharge ports 7 are used to discharge larger dust particles separated inside the conical cyclone body 5, allowing them to fall into the ash hopper 37 for collection. The evenly distributed dust discharge ports 7 ensure smooth dust discharge and avoid dust accumulation caused by blockage of a single dust discharge port, which would affect the cyclone separation efficiency. Air inlet pipes 8 are fixedly installed on the outer ends of the dust discharge ports 7 on both sides, and the ends of the air inlet pipes 8 extend to the outside of the cyclone separation chamber 2. The air inlet pipes 8 are used to introduce external dust-laden gas into the cyclone separation chamber 2, serving as the channel for dust-laden gas to enter the equipment. The design of extending to the outside of the cyclone separation chamber 2 facilitates connection with external dust-laden gas conveying pipelines. The two air inlet pipes 8 are arranged symmetrically and tangentially.The symmetrically tangentially arranged air inlet pipes 8 allow two streams of dust-laden gas to enter the conical cyclone body 5 tangentially from two opposite directions, forming a symmetrical and stable swirling field. This reduces the generation of upper circulation and short-circuit flow, making the airflow distribution more uniform and enhancing the centrifugal separation effect. Simultaneously, it reduces airflow resistance upon entry, preventing equipment wear caused by excessively high local airflow velocities. An upper partition plate 10 is fixedly installed inside the filter chamber 3. The upper partition plate 10 separates the upper area of ​​the filter chamber 3, providing stable installation support for the bag cages 11 and preventing the filtered clean air from mixing with unfiltered dust-laden gas, ensuring filtration efficiency. Its structural design is adapted to the installation spacing of the bag cages 11, facilitating the subsequent installation and maintenance of the dust collector bags 12. Several dust collectors are evenly fixedly installed in the middle of the upper partition plate 10. Bag cages 11 support the dust collector bags 12, preventing them from collapsing during airflow impact and cleaning. This ensures the bags remain fully extended, increasing filtration area and efficiency. The evenly distributed bag cages 11 distribute airflow evenly to each bag 12, preventing excessive load on localized filter bags. Each bag cage 11 contains a fixed dust collector bag 12, which is the core component of fine filtration. Its surface fiber structure effectively intercepts fine dust particles in the dust-laden gas, purifying the gas. Its material is compatible with composite cleaning methods, allowing for rapid dust removal under pulse-jet, suction, and vibration, preventing clogging and ensuring continuous filtration. The interior of the filter chamber 3 is located between the lower partition plate 4 and the upper partition plate 1. A spiral diverter pipe 13 is fixedly installed between the 0 and 0. The spiral diverter pipe 13 is used to divert the airflow carrying fine dust after cyclone separation, and evenly distribute the airflow to each dust collector bag 12. Its spiral structure can extend the airflow path, making it easier for the guide plate 15 to buffer and guide the airflow, while reducing the resistance during the airflow process. Inside the filter chamber 3, a spiral diverter pipe 13 is fixedly installed between the lower isolation plate 4 and the upper isolation plate 10. The spiral diverter pipe 13 is used to receive the airflow carrying fine dust discharged from the conical air hood 9, and evenly distribute it to each dust collector bag 12 to achieve uniform airflow distribution and avoid excessive load on local filter bags. Its spiral structure can effectively extend the airflow path, and together with the guide plate 15, achieve a smooth airflow transition. To reduce resistance loss caused by airflow turbulence, the surface of the spiral diverter 13 is evenly provided with several air outlets 14. The air outlets 14 are the channels through which airflow enters the inlet duct 16 from the spiral diverter 13. The evenly distributed air outlets 14 ensure that each dust collector bag 12 receives a uniform airflow supply, improving bag utilization. Simultaneously, they prevent blockage of the air outlets 14, which could lead to uneven airflow distribution and affect filtration efficiency. Inside the spiral diverter 13, near each air outlet 14, a guide plate 15 is fixedly installed. The width of the guide plate 15 gradually increases with the spiral direction of the spiral diverter 13. The guide plate 15 guides the airflow within the spiral diverter 13, converting swirling airflow into vertically upward airflow, eliminating airflow swirl, and reducing flow velocity.To prevent high-speed airflow from eroding the dust collector bags 12 and extend their lifespan, the design of gradually increasing width along the spiral direction balances the airflow pressure at various points in the distribution pipe, ensuring even airflow from each outlet 14 and further improving the uniformity of airflow distribution. This guarantees consistent filtration load for each dust collector bag 12.

[0030] Specifically, in this embodiment, 13 air outlets 14 are designed. The width of the guide plate 15 is 1 / 13, 1 / 12, 1 / 11...1 / 2 and 1 of the width of the air outlet 14, respectively. This ensures that the air volume of each air outlet 14 is the same. Different numbers of air outlets 14 can be stacked according to specific circumstances, and the width size follows the same pattern as above.

[0031] In this embodiment, a conical air hood 9 is fixedly installed at the top of the conical cyclone body 5. The conical air hood 9 is used to receive the rising airflow carrying fine dust inside the conical cyclone body 5 and smoothly guide it into the spiral diverter pipe 13, serving as a transition and connection. This prevents the airflow from becoming turbulent at the top of the conical cyclone body 5, reduces resistance loss, and prevents fine dust from accumulating at the connection point, ensuring smooth airflow delivery. The input end of the spiral diverter pipe 13 is fixedly installed at the top of the conical air hood 9. This installation method can achieve a tight connection between the conical air hood 9 and the spiral diverter pipe 13, allowing the airflow to directly enter the spiral diverter pipe 13 from the conical air hood 9, avoiding airflow leakage, ensuring the stability and continuity of airflow delivery, and laying the foundation for subsequent airflow diversion and filter bag filtration.

[0032] Furthermore, an inlet short pipe 16 is fixedly installed on the surface of the spiral diverter 13 near each air outlet 14, and the top of the inlet short pipe 16 is connected to the interior of the corresponding side dust collector bag 12. The inlet short pipe 16 is used to accurately guide the airflow discharged from the air outlet 14 of the spiral diverter 13 into the interior of the corresponding dust collector bag 12, so as to achieve precise connection between the airflow and the filter bag, avoid the reduction of filtration efficiency caused by airflow diffusion, and at the same time, its connection method ensures that all the airflow can enter the dust collector bag 12, reduce airflow leakage, and improve the filtration effect. The structural design of the inlet short pipe 16 is adapted to the installation position of the air outlet 14 and the dust collector bag 12, which facilitates installation and maintenance.

[0033] Furthermore, each dust collector bag 12 has a bent branch pipe 17 fixedly installed at its bottom. The bent branch pipe 17 is used to guide the dust-laden gas inside the dust collector bag 12 to the return pipe 18 during the dust removal process. Its bent structure prevents dust accumulation inside the pipe, ensuring smooth flow of the dust-laden gas. It also adapts to the internal spatial layout of the filter chamber 3, avoiding interference with other components. The bottom end of each spiral diverter pipe 13 is fixedly installed at the top of the return pipe 18. The return pipe 18 receives the dust-laden gas discharged from the bent branch pipe 17 and transports it to the rubber piston 19, realizing the return and reprocessing of the dust-laden gas. The connection method of the swirl-type diverter 13 ensures a tight pipe connection and avoids dust and gas leakage. Rubber pistons 19 are fixedly installed on both sides of the left end of the filter chamber 3, and the ends of the return pipes 18 extend into the interior of the rubber pistons 19. As a suction component in the dust removal process, the rubber pistons 19 generate negative pressure through repeated compression and release to achieve the suction of dust and gas in the dust collector bag 12. Its elastic structure can adapt to repeated compression and release actions, ensuring stable suction effect. At the same time, the design of the return pipes 18 extending into its interior allows dust and gas to directly enter the rubber pistons 19, avoiding leakage and improving suction efficiency.

[0034] Furthermore, a drive shaft 20 is movably mounted on the left end of the filter chamber 3, near the upper part of the rubber piston 19. The drive shaft 20 serves as a power transmission component, transmitting the power from the geared motor 21 to the cam 22 and worm gear 25, achieving synchronous rotation of the cam 22 and worm gear 25. Its movable mounting ensures smooth rotation, reduces frictional resistance, and extends service life. One end of the drive shaft 20 is fixedly mounted on the drive end of the geared motor 21. The geared motor 21, as a power source, provides power for the rotation of the drive shaft 20. Its output speed is reduced, allowing precise control of the drive shaft 20's rotation speed to match the rhythm requirements of the dust removal process, ensuring effective dust removal while reducing energy consumption. Cams 22 and 23 are fixedly mounted on the outer diameter of both sides of the drive shaft 20. 2. Cam 22 is used to convert the rotational motion of drive shaft 20 into the reciprocating motion of connecting rod 23. Its eccentric structure design can push connecting rod 23 up and down during rotation, thereby driving the compression and release of rubber piston 19. The material of cam 22 is suitable for high-frequency rotation requirements, wear-resistant and durable. Connecting rod 23 is movably installed in the middle of cam 22, and the ends of connecting rod 23 are movably installed on the top of the corresponding side rubber piston 19. Connecting rod 23 serves as a transmission connector, used to connect cam 22 and rubber piston 19, transmitting the rotational motion of cam 22 to rubber piston 19, driving rubber piston 19 to complete compression and release actions. Its movable installation method ensures smooth movement, reduces friction between parts, avoids jamming, and ensures stable operation of the dust removal and suction process.

[0035] Furthermore, each rubber piston 19 is fixedly equipped with a dust discharge pipe 24, the ends of which extend to the lower interior of the cyclone separator 2. The dust discharge pipe 24 is used to discharge the compressed dust gas inside the rubber piston 19 and guide it into the bottom of the cyclone separator 2, where it finally falls into the ash hopper 37 for collection. Its design of extending to the lower interior of the cyclone separator 2 ensures that the dust gas directly enters the dust collection area, preventing dust from spreading again and improving dust collection efficiency. The air inlet short pipe 16, the bent branch pipe 17, and the dust discharge pipe 24 are all fixedly installed inside. Equipped with one-way valves, the one-way valves control the unidirectional flow of airflow. The one-way valve in the inlet short pipe 16 prevents the airflow in the dust collector bag 12 from flowing back to the spiral diverter pipe 13. The one-way valve in the bent branch pipe 17 prevents the dust gas in the rubber piston 19 from flowing back to the dust collector bag 12. The one-way valve in the dust discharge pipe 24 prevents the dust gas in the cyclone separator 2 from flowing back to the rubber piston 19. By setting the one-way valves, the correct flow direction of airflow and dust gas is ensured, avoiding equipment failure and reduced dust removal efficiency caused by backflow, and ensuring the normal operation of the equipment.

[0036] Furthermore, a worm gear 25 is fixedly installed on the outer diameter of the middle part of the drive shaft 20. The worm gear 25 is used to transmit the rotational power of the drive shaft 20 to the worm wheel 27. Its meshing with the worm wheel 27 can realize the smooth transmission of power, and at the same time change the direction of power transmission to adapt to the reciprocating motion requirements of the movable plate 29. The tooth design of the worm gear 25 ensures tight meshing, high transmission efficiency, and reduced power loss. A short shaft 26 is movably installed in the middle of the left end of the filter chamber 3. The short shaft 26 is used to support the worm wheel 27 and the first chuck 28, and transmits the rotational power of the worm wheel 27 to the first chuck 28. Its movable installation method ensures smooth rotation and reduces frictional resistance. A worm wheel is fixedly installed on the outer end of the short shaft 26. 27. The worm gear 27 is meshed with the inner end of the worm 25. The worm gear 27 and the worm 25 constitute a worm gear transmission mechanism, which can convert the rotational motion of the worm 25 into the rotational motion of the short shaft 26. At the same time, the speed is reduced and the torque is increased to ensure that the rotational force of the first chuck 28 is sufficient to drive the movable plate 29 to move. The inner end of the short shaft 26 extends into the interior of the filter chamber 3 and is fixedly installed with the first chuck 28. The first chuck 28 is used to cooperate with the second chuck 30 through the hemispherical protrusion to drive the movable plate 29 to reciprocate. The hemispherical protrusion design on its surface can realize the staggered meshing with the second chuck 30, converting the rotational motion into reciprocating motion and providing power for the vibration of the movable plate 29.

[0037] Furthermore, a movable plate 29 is movably installed inside the filter chamber 3. The movable plate 29 is used to drive the impact block 32 to collide with the bag cage 11, realizing the vibration cleaning of the dust collector bag 12. Its movable installation method ensures flexible reciprocating movement to adapt to the cleaning rhythm. At the same time, the through hole 31 on its surface is designed to avoid interference with the bag cage 11, ensuring the normal operation of the bag cage 11 and the dust collector bag 12. A second chuck 30 is fixedly installed at one end of the movable plate 29. The second chuck 30 cooperates with the first chuck 28, forming a toothed structure through interlocking hemispherical protrusions. During rotation, the movable plate 29 reciprocates. Its hemispherical protrusion design reduces friction between components, ensuring smooth movement. Several hemispherical protrusions are fixedly installed on the inner ends of both the first chuck 28 and the second chuck 30, with the two sets of hemispherical protrusions interlacing. When the first chuck 28 rotates, the interlacing hemispherical protrusions, through mutual compression and separation, push the second chuck 30, causing the movable plate 29 to reciprocate, thus vibrating the movable plate 29 and providing power for the impact block 32 to collide with the cage 11. Simultaneously, the interlacing design ensures stable movement of the movable plate 29. To prevent jamming, through holes 31 are provided on the surface of the movable plate 29 at positions corresponding to each bag cage 11. These through holes 31 are used to avoid the bag cages 11, ensuring that the movable plate 29 will not collide or interfere with the bag cages 11 during reciprocating motion. Simultaneously, their size is adapted to the diameter of the bag cages 11, ensuring that the impact blocks 32 can accurately collide with the center of the bag cages 11. Impact blocks 32 are fixedly installed on both sides of the inner wall of the through holes 31. The impact blocks 32 are used to continuously collide with the center of the bag cages 11 during the reciprocating motion of the movable plate 29, causing the dust collector bags 12 to vibrate and shake off the accumulated dust inside the bags. The material is wear-resistant and can withstand high-frequency impacts. At the same time, its installation position ensures that the impact force is moderate, which can effectively shake off the accumulated dust without damaging the bag cage 11 and the dust collector bag 12. The other end of the movable plate 29 is connected to the inner wall of the filter chamber 3 by a return spring 33 on both sides. The return spring 33 is used to provide a return force when the movable plate 29 moves, so that the movable plate 29 can move back and forth smoothly under the action of the first chuck 28 and the second chuck 30, avoiding excessive movement of the movable plate 29 and damage to the components. At the same time, it ensures that the impact force of the impact block 32 is uniform and improves the effect of vibration cleaning.

[0038] Furthermore, several blowpipes 34 are fixedly installed on the top of the filter chamber 3. The blowpipes 34 are used to transport high-pressure gas from the gas storage tank 36 and distribute the high-pressure gas to each diffuser nozzle 35. The fixed installation method ensures that no displacement occurs during the blowing process. At the same time, the evenly distributed blowpipes 34 ensure that each dust collector bag 12 can obtain a uniform blowing airflow. Several diffuser nozzles 35 are fixedly installed at the bottom of each blowpipe 34, and the bottom of each diffuser nozzle 35 is aligned with the top of the corresponding dust collector bag 12. The diffuser nozzle 35 is connected to the blowpipe 34 and diffuses the high-pressure gas into the dust collector bag 12, ensuring that the high-pressure gas acts evenly inside the dust collector bag 12 for top-mounted cleaning. Its diffuser design prevents excessive localized impact of the high-pressure gas from damaging the dust collector bag 12, while also improving the coverage and effectiveness of the cleaning process. One end of each blowpipe 34 extends to the outside of the filter chamber 3 and is fixedly installed on one side of the air storage tank 36, which stores the high-pressure gas and provides a stable gas source for the cleaning process. The connection between the blowpipe 34 and the blowpipe 34 ensures smooth delivery of high-pressure gas and prevents leakage. Pulse jet valves are fixedly installed on the outer diameter of the blowpipe 34. These valves control the timing and duration of the high-pressure gas flow within the blowpipe 34, enabling pulse jet cleaning. The cleaning rhythm can be precisely controlled according to the dust accumulation on the filter bag 12, improving cleaning efficiency and saving air. A dust hopper 37 is fixedly installed at the bottom of the cyclone separator 2. The dust hopper 37 collects the dust discharged from the cyclone separator 2 and the dust discharge pipe 24. The bottom of the filter chamber 3 can be equipped with a dust discharge device to facilitate regular cleaning of the collected dust, realize the recycling of dust, and prevent dust accumulation from affecting the operation of the equipment. An air outlet pipe 38 is fixedly installed on one side of the top of the filter chamber 3. The air outlet pipe 38 is used to discharge the clean air filtered by the dust collector bag 12 from the filter chamber 3 to the equipment. Its installation position is located at the top of the filter chamber 3 to ensure that the clean air can be discharged smoothly and avoid mixing with unfiltered dust-containing gas. At the same time, it is easy to connect to the external exhaust pipe to realize the discharge of purified gas.

[0039] Working principle:

[0040] First, dust-laden gas is introduced into the cyclone separator 2 through two inlet pipes 8. The two streams of gas enter the conical cyclone body 5 tangentially from two directions, forming a symmetrical and stable vortex, reducing upper circulation and short-circuit flow. Combined with the effect of the spiral guide cone 6, the airflow is guided to descend steadily along a spiral trajectory, enhancing centrifugal separation, reducing turbulence, and lowering pressure loss. The largest dust particles are discharged through the dust outlet 7 on the side of the conical cyclone body 5 and fall into the ash hopper 37. Medium-sized dust particles descend with the rotation of the cylinder wall and fall into the ash hopper 37 due to centrifugal force. The smallest dust particles rise with the airflow and enter the spiral diverter pipe 13 through the conical air hood 9. The gas then flows through the spiral diverter pipe 13. The air flows through the flow tube 13 and is guided by the flow guide plate 15 before being discharged from each air outlet 14. The flow guide plate 15 can convert the airflow into a vertical upward airflow, eliminate the swirl and reduce the flow velocity, and avoid high-speed scouring of the dust collector bag 12 in the later stage. At the same time, the flow guide plate 15 is designed with the width gradually increasing with the swirl direction of the spiral flow tube 13, so that the airflow can be discharged evenly from each air outlet 14, thereby improving the utilization rate of the dust collector bag 12. The airflow enters the air inlet short pipe 16 from the air outlet 14 and breaks through the one-way valve in the air inlet short pipe 16 to enter the dust collector bag 12 for secondary filtration. After the fine dust is intercepted by the surface fibers of the dust collector bag 12, the clean air overflows and is finally discharged from the air outlet 38.As dust accumulates inside the filter bag 12, the pressure difference between the system inlet and outlet increases, triggering the dust removal process. At this time, all pulse jet valves open, and high-pressure gas from the storage tank 36 enters the jet pipe 34 and is ejected through the diffuser nozzle 35. The high-pressure gas is sprayed downwards from the top of the filter bag 12. Simultaneously, the reduction motor 21 starts, driving the transmission shaft 20 to rotate, which in turn rotates the cam 22. The rotating cam 22 causes one end of the connecting rod 23 to rotate, thus continuously compressing and releasing the rubber piston 19 at the other end of the connecting rod 23. When the rubber piston 19 releases, the internal air pressure decreases, and the one-way valve in the bent branch pipe 17 opens. Dust-laden gas from the filter bag 12 enters the rubber piston 19 through the bent branch pipe 17 and the return pipe 18. When the rubber piston 19 is compressed, the internal air pressure increases, and the one-way valve in the dust discharge pipe 24 closes. When opened, the dusty gas enters the bottom of the cyclone separator 2 through the dust discharge pipe 24 and finally enters the ash hopper 37. At the same time, when the drive shaft 20 rotates, it also drives the worm 25 to rotate. The rotating worm 25 drives the worm wheel 27 and the short shaft 26 to rotate, which in turn drives the first chuck 28 to rotate. When the first chuck 28 rotates, it forms a toothed structure through two sets of interlocking hemispherical protrusions. With the action of the return spring 33, it drives the movable plate 29 to move back and forth. At this time, the impact block 32 in the through hole 31 will continuously collide with the middle of the bag cage 11, thereby causing the dust collector bag 12 to vibrate and shake off the dust in the dust collector bag 12. The composite dust cleaning structure of top blowing, bottom suction and middle vibration greatly improves the cleaning efficiency of the dust in the dust collector bag 12. At the same time, coarse and fine dust are collected separately, preventing the dust in the dust collector bag 12 from being sucked up by the cyclone airflow and circulating pollution.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-resistance cyclone filter bag composite dust collector, comprising a fixed support (1), characterized in that, A cyclone separation chamber (2) is fixedly installed in the lower inner part of the fixed bracket (1), and a filter chamber (3) is fixedly installed in the upper inner part of the fixed bracket (1). A lower isolation plate (4) is fixedly installed inside the cyclone separation chamber (2). A conical cyclone cylinder (5) is fixedly installed in the middle of the lower isolation plate (4). A spiral guide cone (6) is fixedly installed on the inner wall of the conical cyclone cylinder (5). Several dust discharge ports (7) are evenly opened on the side wall of the conical cyclone cylinder (5). An air inlet pipe (8) is fixedly installed at the outer end of the dust discharge ports (7) on both sides, and the end of the air inlet pipe (8) extends to the outside of the cyclone separation chamber (2). The two air inlet pipes (8) are arranged symmetrically and tangentially. The filter chamber (3) is fixedly installed with an upper isolation plate (10). Several bag cages (11) are evenly fixedly installed in the middle of the upper isolation plate (10). Dust collector bags (12) are fixedly installed inside each bag cage (11). A spiral diversion pipe (13) is fixedly installed inside the filter chamber (3) between the lower isolation plate (4) and the upper isolation plate (10). Several air outlets (14) are evenly opened on the surface of the spiral diversion pipe (13). A guide plate (15) is fixedly installed inside the spiral diversion pipe (13) near each air outlet (14), and the width of the guide plate (15) gradually increases with the spiral direction of the spiral diversion pipe (13).

2. The low-resistance cyclone filter bag composite dust collector according to claim 1, characterized in that, A conical air hood (9) is fixedly installed at the top of the conical cyclone body (5), and the input end of the spiral diverter (13) is fixedly installed at the top of the conical air hood (9).

3. The low-resistance cyclone filter bag composite dust collector according to claim 1, characterized in that, The surface of the spiral diversion pipe (13) is fixedly installed with an air inlet short pipe (16) near each air outlet (14), and the top of the air inlet short pipe (16) is connected to the interior of the dust collector bag (12) on the corresponding side.

4. The low-resistance cyclone filter bag composite dust collector according to claim 3, characterized in that, The bottom of each dust collector bag (12) is fixedly installed with a bent branch pipe (17), the bottom end of each spiral diversion pipe (13) is fixedly installed on the top of the return pipe (18), and rubber pistons (19) are fixedly installed on both sides of the left end of the filter chamber (3), and the end of each return pipe (18) extends into the interior of the rubber piston (19).

5. The low-resistance cyclone filter bag composite dust collector according to claim 4, characterized in that, A drive shaft (20) is movably installed at the left end of the filter chamber (3) near the upper position of the rubber piston (19). One end of the drive shaft (20) is fixedly installed at the drive end of the geared motor (21). Cams (22) are fixedly installed on the outer diameter of both sides of the drive shaft (20). A connecting rod (23) is movably installed in the middle of the cam (22), and the ends of the connecting rods (23) are movably installed on the top of the corresponding side of the rubber piston (19).

6. The low-resistance cyclone filter bag composite dust collector according to claim 5, characterized in that, The middle part of each rubber piston (19) is fixedly equipped with a dust discharge pipe (24), and the end of the dust discharge pipe (24) extends to the lower inside of the cyclone separation chamber (2). The inside of the air inlet short pipe (16), the bent branch pipe (17) and the dust discharge pipe (24) is fixedly equipped with a one-way valve.

7. The low-resistance cyclone filter bag composite dust collector according to claim 6, characterized in that, A worm gear (25) is fixedly installed on the outer diameter of the middle part of the drive shaft (20). A short shaft (26) is movably installed in the middle of the left end of the filter chamber (3). A worm wheel (27) is fixedly installed on the outer end of the short shaft (26) and the worm wheel (27) meshes with the inner end of the worm gear (25). The inner end of the short shaft (26) extends into the interior of the filter chamber (3) and is fixedly installed with a first chuck (28).

8. The low-resistance cyclone filter bag composite dust collector according to claim 7, characterized in that, The filter chamber (3) is equipped with a movable plate (29). A second chuck (30) is fixedly installed at one end of the movable plate (29). Several hemispherical protrusions are fixedly installed on the inner sides of the first chuck (28) and the second chuck (30), and the two sets of hemispherical protrusions are interlaced. A through hole (31) is opened on the surface of the movable plate (29) at the position corresponding to each bag cage (11). Impact blocks (32) are fixedly installed on both sides of the inner wall of the through hole (31). The other side of the movable plate (29) is connected to the inner wall of the filter chamber (3) by a return spring (33).

9. The low-resistance cyclone filter bag composite dust collector according to claim 1, characterized in that, Several blow pipes (34) are fixedly installed on the inner top of the filter chamber (3). Several diffuser nozzles (35) are fixedly installed at the bottom of each blow pipe (34), and the bottom of each diffuser nozzle (35) is connected to the top of the dust collector bag (12) on the corresponding side. One end of each blow pipe (34) extends to the outside of the filter chamber (3) and is fixedly installed on one side of the air storage bag (36). A pulse blow valve is fixedly installed on the outer diameter of each blow pipe (34). A ash hopper (37) is fixedly installed at the bottom of the cyclone separator (2). An air outlet pipe (38) is fixedly installed on one side of the top of the filter chamber (3).

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