A rotary partitioned injection and dust cleaning and filtering equipment

Abstract

This invention belongs to the field of environmental protection equipment technology, specifically relating to a rotary zoned jet cleaning and filtration dust removal device. It includes a cylindrical body, a driving device at the top of the cylinder, a sealing jet cleaning device below the driving device, a sealing zone plate below the sealing jet cleaning device, a filter device below the sealing zone plate, a scraper device below the filter device, and a screw feeder below the scraper device, all mounted on a base. This invention adopts a cylindrical single-unit structure, which can be stacked in multiple layers or arranged in parallel, resulting in a small footprint. The integrated sealing jet cleaning device enables zoned offline cleaning, simplifying the structure. The shared drive scraper device reduces air leakage, and the absence of a ash storage hopper reduces equipment height, leading to low investment costs.

Description

Technical Field

[0001] This invention belongs to the field of environmental protection equipment technology, specifically relating to a rotary zone jet cleaning and dust removal filter. Background Technology

[0002] With increasingly stringent controls on air pollutant emissions, the concentration of particulate matter emissions from industries such as metallurgy, power, and chemicals is generally required to be ≤10mg / Nm³, with some regions and industries requiring it to be below 5mg / Nm³. Traditional non-filtration equipment such as electrostatic precipitators and wet scrubbers are insufficient to meet ultra-low emission requirements, making filtration-type dust collection equipment such as bag filters, cartridge filters, and sintered plastic plate filters the mainstream choice. Currently, the most widely used type is the box-type bag filter, which has advantages such as high dust removal efficiency and easy offline cleaning, but also has significant drawbacks: large footprint, high initial investment, high equipment resistance, frequent bag replacement, high maintenance costs, and long downtime.

[0003] Although existing rotary pulse dust collectors have improved upon the traditional structure by using a rotary cleaning mechanism to replace the fixed compartment structure, they still have many shortcomings: the rotary mechanism drives the entire top cover to rotate, resulting in large inertia, poor jet cleaning accuracy, and easy damage to filter bags; the equipment has a complex structure, a large number of offline valves and cylinders, and a high air leakage rate; the fan is located at the bottom, making maintenance inconvenient, and the centrally located chimney makes the equipment bulky and the investment high; the cleaning and ash unloading mechanisms are driven independently, resulting in many failure points and poor operational stability.

[0004] To address this issue, a rotary zone jet cleaning and filtration dust removal device with a small footprint, simplified structure, low resistance, precise dust removal, easy maintenance, and reliable operation was developed to solve the technical problems. Summary of the Invention

[0005] To address the aforementioned shortcomings in the existing technology, the present invention provides a rotary zone pulse-jet cleaning and filtration dust removal device to solve the problems mentioned in the background technology.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A rotary partitioned jet cleaning and dust removal device includes a cylinder, a driving device at the top of the cylinder, a sealing jet cleaning device below the driving device, a sealing partition plate below the sealing jet cleaning device, a filter device below the sealing partition plate, a dust scraping device below the filter device, and a screw feeder below the dust scraping device. The screw feeder is mounted on a base. The sealing jetting device includes an air tank located on the central axis of the cylinder. The air tank is equipped with a connecting seat, which is fixedly connected to the upper sealing plate. The upper sealing plate is equipped with a side sealing plate, and the inner side of the side sealing plate is equipped with a sealing cavity. A pulse valve is installed in the sealing cavity, and a jetting pipe is installed below the pulse valve. A jetting chamber is installed below the jetting pipe, and a jetting chamber partition is installed inside the jetting chamber. A jetting head is installed below the jetting chamber partition. Supporting rollers are installed on both sides of the sealing cavity, and the lower end of the air tank is rotatably connected to the ash scraping device.

[0007] Furthermore, the sealing cavity is formed by a side sealing plate, an upper sealing plate, a lower sealing plate, and an arc plate with supporting rollers installed. The bottom of the side sealing plate is provided with flexible sealing elements around its perimeter. The flexible sealing elements fit into the fan-shaped dividing frame to form a sealing chamber. The supporting rollers are slidably connected to the slide rail, which is located on the upper side of the sealing partition plate.

[0008] Furthermore, the sealing partition plate includes a partition plate provided on the lower side of the blower head, and fan-shaped dividing frames are provided on both sides of the partition plate. One end of the fan-shaped dividing frame is provided with an inner ring frame, and the other end of the fan-shaped dividing frame is provided with an outer ring frame. The partition plate is provided with plate holes, and ribs are provided on the lower side of the plate holes. The sealing partition plate is located in the upper part of the cylinder, and the sealing partition plate is divided into multiple equally divided sectors by the fan-shaped dividing frames and the partition plate.

[0009] Furthermore, the upper side of the cylinder is provided with a sealing cover plate, the lower side of the cylinder is provided with a scraper plate, the lower side of the scraper plate is provided with a screw feeder, the upper side wall of the cylinder is provided with an exhaust pipe, and the lower side wall of the cylinder is provided with an air inlet pipe; the sealing cover plate is provided with a driving device.

[0010] Furthermore, the filtration device includes a bag frame disposed on the lower side of the sealed partition plate, and a bag is disposed on the bag frame. The filtration device is disposed under multiple equally divided sectors, and the bag frame and bag in each equally divided sector are radially uniformly arranged and circumferentially staggered.

[0011] Furthermore, the ash scraping device includes an ash scraping base plate, an ash scraping blade on the ash scraping base plate, the ash scraping blade being fixedly connected to the ash scraping plate seat, an ash inlet on the lower side of the ash scraping base plate, the ash inlet being connected to a screw feeder, and the ash scraping plate seat being fixedly connected to the lower side of the air storage tank.

[0012] Furthermore, the driving device includes a support base fixedly connected to the sealing cover plate, a motor is mounted on the support base, and a coupling is fixedly connected to the output shaft of the motor; the lower end of the coupling is fixedly connected to the upper end of the gas storage tank.

[0013] Furthermore, the lower end of the air tank is a hollow shaft structure, the hollow shaft is rotatably connected to the bearing seat, and the hollow shaft passes through the scraper base plate and is connected to the rotary joint. The lower side of the rotary joint is provided with a compressed air pipe and a power cord pipe, and the compressed air pipe is connected to the air tank.

[0014] Furthermore, the inner ring frame is fixedly connected to the gas storage tank, and a sealing cylinder is fixedly connected to the lower side of the inner ring frame; the gas storage tank is provided inside the sealing cylinder, and a fixed bracket is provided on the lower side of the sealing cylinder, with the fixed bracket positioned between the filter device and the dust scraping device.

[0015] Furthermore, it also includes a multi-layered dust removal device, each layer of which is equipped with a separate sealing jet blowing device, sealing partition plate, filter device, dust scraping device, screw feeder, and air inlet pipe; each layer is separated by a partition plate, and each layer shares the air storage tank and drive device, and the exhaust pipe of each layer is connected to the combined air outlet pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. By adopting a cylindrical single-unit structure design, the footprint of the dust collector is significantly reduced. The cylindrical body has a cylindrical structure, which can be arranged in multiple layers or in parallel in a planar manner according to the dust collection air volume requirements: multi-layer stacking allows each layer to share the same central air storage tank and drive device, making full use of space in the vertical direction; parallel arrangement in a planar manner allows for flexible combination of equipment according to the processing air volume. Through the above structural improvements, under the same filtration area conditions, the footprint of this invention is only half or one-third of that of traditional bag dust collectors, solving the technical problems of traditional bag dust collectors having a large footprint and being unable to be arranged in narrow areas; 2. By incorporating an integrated sealing pulse-jet cleaning device and a sealing partition plate, the bag filter cleaning structure is simplified and space utilization is improved. The integrated sealing pulse-jet cleaning device has a fan-shaped structure, with one rotating device replacing dozens of fixed pulse valves and a complex compartmentalized offline structure. The pulse-jet cleaning mechanism operates independently without fault points and requires no maintenance throughout its lifespan. The filter bags are radially evenly arranged and circumferentially staggered on the sealing partition plate, with uniform spacing and no wasted space. The sealing partition plate divides the filter bags into 8 equal sections, and one rotating integrated sealing pulse-jet cleaning device can complete the offline cleaning of each section, eliminating the need for a complex compartmentalized offline cleaning structure. 3. By setting up a planar rotating scraper mechanism that shares a drive with the dust removal device and a hopperless structure, the ash discharge device is simplified and the air leakage rate is reduced. The scraper is fixed at the lower end of the central air tank and shares the same drive device with the dust removal device. It rotates synchronously with the air tank, scraping the dust to the ash inlet and then discharging it through a screw feeder. There is no need to set up traditional ash hoppers, silo wall vibrators, ash discharge valves, and other auxiliary facilities. Through the above structural improvements, the air leakage rate of the dust collector is reduced from 3% of the traditional structure to 3‰, and the equipment height is reduced by half compared to traditional baghouse dust collectors, greatly reducing the investment cost of the dust collector. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a rotary zone pulse-jet cleaning and dust removal device according to the present invention; Figure 2 This is a partial schematic diagram of a rotary zone pulse-jet cleaning and dust removal device according to the present invention. Figure 3 for Figure 2 Sectional view of AA; Figure 4 for Figure 2 A magnified view of part D; Figure 5 This is a cross-sectional schematic diagram of the integrated sealing jet blowing device; Figure 6 for Figure 4 Sectional view of CC; Figure 7 This is a schematic diagram of an integrated sealing jetting device; Figure 8 This is a schematic diagram of a sealed partition plate; Figure 9 for Figure 7 Sectional view of BB; Figure 10 This is a schematic diagram of a multi-layer dust removal device; Figure 11 This is a schematic diagram of two dust removal devices combined. Figure 12 A schematic diagram of a three-dust collector unit; Figure 13 A schematic diagram of four dust collector units; The reference numerals in the accompanying drawings include: 1. Motor; 2. Pulse valve power cord; 3. Support base; 31. Coupling; 4. Sealing jet device; 41. Pulse valve; 42. Sealing cavity; 43. Support roller; 44. Side sealing plate; 441. Flexible seal; 45. Jet nozzle; 46. Jet chamber; 47. Jet pipe; 48. Jet chamber partition; 49. Upper sealing plate; 491. Lower sealing plate; 5. Connecting seat; 6. Air tank; 7. Sealing cover plate; 8. Sealing partition plate; 81. Inner ring frame; 82. Sector-shaped partition frame; 8 3. Partition plate; 84. Plate hole; 85. Outer ring frame; 86. Rib plate; 9. Exhaust pipe; 10. Slide rail; 11. Bag frame; 12. Bag; 13. Compressed air pipeline; 14. Power cord conduit; 15. Rotary joint; 16. Bearing seat; 17. Scraper plate seat; 18. Base; 19. Screw feeder; 20. Scraper bottom plate; 21. Scraper blade; 22. Fixed bracket; 23. Sealing cylinder; 24. Air inlet pipe; 25. Cylinder body; 26. Feeder discharge port; 27. Partition plate; 28. Combined exhaust pipe; 29. ​​Ash inlet. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0019] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this application. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0020] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0021] In the description of this invention, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating a connection between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] Example 1: like Figure 1-13 As shown, the present invention discloses a rotary zone pulse-jet cleaning and filtration dust removal device, including a cylinder 25. The cylinder 25 is the basic frame and outer shell of the dust collector body, which supports and fixes all structural components. A sealing cover plate 7 is installed on the upper part of the cylinder, and a scraping bottom plate 20 is installed on the lower part, forming a closed dust removal working space.

[0023] Furthermore, a sealing cover plate 7 is provided on the upper side of the cylinder 25, and a driving device is provided on the sealing cover plate 7. A scraper plate 20 is provided on the lower side of the cylinder 25, and a screw feeder 19 is provided on the lower side of the scraper plate 20; a driving device is provided on the top of the cylinder 25, a sealing jetting device 4 is provided on the lower side of the driving device, a sealing partition plate 8 is provided on the lower side of the sealing jetting device 4, a filter device is provided on the lower side of the sealing partition plate 8, a scraper device is provided on the lower side of the filter device, and a screw feeder 19 is provided on the lower side of the scraper device. The screw feeder 19 is mounted on the base 18, and a feeder discharge port 26 is provided at the end of the screw feeder 19; the driving device includes a support base 3 fixedly connected to the sealing cover plate 7, a motor 1 is provided on the support base 3, and a coupling 31 is fixedly connected to the output shaft of the motor 1; the lower end of the coupling 31 is fixedly connected to the upper end of the gas storage tank 6.

[0024] A slide rail 10 is provided on the upper side of the sealing partition plate 8. A sealing blower 4 is installed on the upper side of the slide rail 10. Figure 1 , 5 As shown in Figure 7, the sealing jetting device 4 includes an air storage tank 6 disposed on the central axis of the cylinder 25. A connecting seat 5 is fixedly connected to the air storage tank 6. The connecting seat 5 is bolted to the upper sealing plate 49. A side sealing plate 44 is provided on the upper sealing plate 49, and a sealing cavity 42 is provided inside the side sealing plate 44. The sealing cavity 42 is formed by the side sealing plate 44, the upper sealing plate 49, the lower sealing plate 491, and an arc plate on which a supporting roller 43 is installed. A pulse valve 41 is provided inside the sealing cavity 42. A jetting pipe 47 is provided below the pulse valve 41. A jetting chamber 46 is provided below the jetting pipe 47. A jetting chamber partition 48 is provided inside the jetting chamber 46. A jetting head 45 is provided below the jetting chamber partition 48. Support rollers 43 are provided on both sides of the sealing cavity 42. The support rollers 43 are slidably connected to the slide rail 10. Flexible sealing elements 441 are provided around the lower side of the side sealing plate 44. The flexible sealing elements 441 are fitted with the fan-shaped dividing frame 82 of the sealing partition plate 8 to form a sealing chamber.

[0025] A sealing partition plate 8 is horizontally fixed in the upper part of the cylinder 25. For example... Figure 8 , 9 As shown, the sealing partition plate 8 includes a partition plate 83, with fan-shaped dividing frames 82 on both sides of the partition plate 83. One end of each fan-shaped dividing frame 82 has an inner ring frame 81, and the other end has an outer ring frame 85. The partition plate 83 has holes 84, and a reinforcing rib 86 is located below the holes 84. The fan-shaped dividing frames 82, along with the partition plate 83, the inner ring frame 81, and the outer ring frame 85, divide the sealing partition plate 8 into multiple equally divided sectors. Preferably, the sealing partition plate 8 is divided into eight equally divided sectors, each surrounded by a sealing frame to form a sealing plane. The sealing frame around each sector extends 30mm above the edge of the bag opening. A cleaning chamber is formed between the sealing partition plate 8 and the sealing cover plate 7. The eight equally divided sectors surround the sealing cylinder 23.

[0026] A filter device is provided on the lower side of the sealed partition plate 8. The filter device includes a bag frame 11 located on the lower side of the sealed partition plate 8, and a bag 12 is mounted on the bag frame 11. The filter device is respectively set under multiple equally divided sectors. The bag frame 11 and the bag 12 in each equally divided sector are radially uniformly arranged and circumferentially staggered. Specifically, the dust collector bags 12 are divided into 8 groups. The number and position of bags in each group are the same, and they are installed in 8 equally divided sectors. The sector-shaped dividing frame 82 is 30mm higher than the edge of the bag opening to form a sealing plane. When the filter bags are being cleaned, they cover the filter bags in the designated area, isolating the bags in that area from the dust-laden airflow (offline state), ensuring the cleaning effect and not affecting the continuous operation of the dust collector.

[0027] The inner ring frame 81 is fixedly connected to the gas storage tank 6. A sealing cylinder 23 is fixedly connected to the lower side of the inner ring frame 81. The gas storage tank 6 is located inside the sealing cylinder 23. A fixed bracket 22 is located on the lower side of the sealing cylinder 23. The fixed bracket 22 is located between the filter device and the dust scraping device. A filter device is installed between the fixed bracket 22 and the sealing partition plate 8 to form a filter chamber.

[0028] Specifically, a sealing partition plate 8 is laid in the upper part of the cylinder. The sealing partition plate 8 is located between the filter chamber and the clean chamber, which serves to separate the two chambers and fix the filter bag 12. Its main function is to separate the dust-laden airflow from the clean airflow and is the basic component for the installation of the filter bag 12.

[0029] A fixed bracket 22 is provided on the lower side of the filter device, and a ash scraping device is provided on the lower side of the fixed bracket 22. The ash scraping device includes a ash scraping base plate 20, and a ash scraping knife 21 is provided on the ash scraping base plate 20. The ash scraping knife 21 is fixedly connected to the ash scraping plate seat 17. An ash inlet 29 is provided on the lower side of the ash scraping base plate 20. The ash inlet 29 is connected to the screw feeder 19. The ash scraping plate seat 17 is fixedly connected to the lower side of the air storage tank 6.

[0030] Furthermore, the lower end of the air tank 6 is a hollow shaft structure, which is rotatably connected to the bearing seat 16. The hollow shaft passes through the scraper base plate 20 and is connected to the rotary joint 15. The rotary joint 15 is provided with a compressed air pipe 13 and a power cord pipe 14 on its lower side. The compressed air pipe 13 is connected to the air tank 6.

[0031] An exhaust pipe 9 is provided on the upper side wall of the cylinder 25, and the exhaust pipe 9 can be arranged at any angle in the circumferential direction of the cylinder. An air inlet pipe 24 is provided on the lower side wall of the cylinder 25. The air inlet pipe 24 is a tangential air inlet structure and is tangent to the inner wall of the cylinder 25.

[0032] Furthermore, it also includes a multi-layered dust removal device, each layer of which is equipped with a separate sealing jet blowing device 4, a sealing partition plate 8, a filter device, a dust scraping device, a screw feeder 19, and an air inlet pipe 24; each layer is separated by a partition plate 27, and each layer shares an air storage tank 6 and a drive device, and the exhaust pipe 9 of each layer is connected to the air outlet merging pipe 28.

[0033] Specifically, such as Figure 6 As shown, the sealing and blowing device 4 has a fan-shaped structure and is installed in the cleanroom. It consists of a sealing chamber 42, a blowing chamber 46, and a flexible sealing element 441, and has four functions: sealing, air storage, air guiding, and blowing. The sealing chamber 42 is connected to the central air storage tank 6. The lower part of the sealing chamber 42 is the blowing chamber 46. When the pulse valve is opened, compressed air forms a pulse airflow. The airflow flows rapidly in the blowing chamber 46 and is then rapidly sprayed into the filter bag 12 through the blower head 45 installed on the blowing chamber 46 to achieve the purpose of dust removal. The lower part of the blowing chamber 46 is the flexible sealing element 441. When the flexible sealing element 441 moves to one of the equally divided fan-shaped sectors, it forms a sealing chamber. This sealing chamber is formed by the fan-shaped dividing frame 82 of the partition plate and the flexible sealing element. In the sealed state, the filter bag in the sector is cut off from the negative pressure from the exhaust fan, and the filter bag 12 is in a non-working state, that is, the filter bag stops filtering the dust-laden gas, thereby realizing offline dust removal of the filter bag.

[0034] The sealed cavity 42 provides compressed air for pulse jetting. The central air tank 6 has a cylindrical sealed chamber structure and is installed vertically. The sealed cavity 42, the jetting chamber 46, and the central air tank 6 form an integrated sealed jetting device 4. This device rotates with the central air tank 6 and is designed with a rotary mechanism adapted to the offline jetting operation mechanism of the bag filter, so as to achieve precise air supply and jetting.

[0035] The lower side of the sealed partition plate 8 is the filter chamber, which is equipped with filter bags 12. When dust-laden gas enters this area, the filter bags 12 complete the core filtration process of dust interception. The filter bags 12 are the core filtration element; when dust-laden gas passes through, the dust is intercepted outside the bags, and clean gas passes through the bags.

[0036] The lower part of the filter chamber is enclosed by a flat circular steel plate, which serves as the base plate of the dust collector and also as the dust collector scraping base plate 20. A rectangular opening is opened in the middle of the scraping base plate 20, which is the ash inlet 29. A screw feeder 19 is installed below the ash inlet 29, forming a complete sealed filter chamber with the sealing partition plate 8.

[0037] A scraper blade 21 is installed on the floor of the filter chamber. The scraper blade 21 is fixedly installed on the scraper plate seat 17. The scraper plate seat 17 is installed on the central air storage tank 6 that rotates in the center of the dust collector. The dust is scraped up by the scraper and moves with it. Then the dust falls from the dust inlet 29 on the dust collector scraper bottom plate 20 into the screw feeder 19. The screw conveyor 19 continuously and quantitatively transports the dust collected in the dust hopper to the designated discharge point.

[0038] There is an air inlet 24 on one side of the filter chamber. In principle, the air inlet 24 is tangential to the cylinder. This arrangement can force the dust-laden airflow to rotate along the inner wall of the circular cylinder 25. The dust-laden gas can be evenly distributed throughout the filter chamber. Under the action of centrifugal force and cylinder friction, large dust particles settle quickly, reducing the pressure on the filter bags. On the other hand, the increased driving path of the dust-laden gas is conducive to even distribution throughout the filter chamber, making the filtration velocity of each filter bag more uniform and effectively improving the dust removal efficiency.

[0039] Example 2 like Figure 10 As shown, this embodiment, based on embodiment one, also includes a multi-layered dust removal device. Each layer is equipped with a separate sealing jet blowing device 4, a sealing partition plate 8, a filter device, a dust scraping device, a screw feeder 19, and an air inlet pipe 24. Each layer is separated by a partition plate 27, and all layers share the same air storage tank 6 and drive device 1. The exhaust pipe 9 of each layer is connected to the combined exhaust pipe 28.

[0040] The three-dimensional, multi-layered structure makes full use of vertical space, multiplying the filtration area without changing the floor space, making it suitable for applications with strict space constraints. A single dust collector can achieve a filtration area of ​​up to 2000 m². 2 The above can handle dust-laden flue gas volumes of 20 × 10⁶. 4 m 3 / h or more. To save space, dust collectors can be stacked at different heights; with multiple stacked combinations, the air volume handled can reach 80 × 10⁶. 4 m 3 / h or more.

[0041] Example 3 like Figure 11-13 As shown, this embodiment, based on Embodiment 1, adopts a planar parallel arrangement of multiple units. Multiple cylinders 25 are arranged in a planar array in parallel, each cylinder 25 having its own independent air inlet pipe 24. Each cylinder 25 can operate independently or synchronously according to the required air volume. The exhaust pipes 9 of the multiple cylinders 25 are connected to a common air outlet merging pipe.

[0042] Multiple units can be arranged in parallel on a planar surface, allowing for flexible combinations based on actual air volume. Figure 11 It is a combination of two dust collectors. Figure 12 It is a combination of three dust collectors. Figure 13 This arrangement consists of four dust collectors. It is suitable for applications requiring large air volumes where a single unit cannot meet the demand, and where there is relatively ample floor space. It allows for modular assembly, enabling flexible addition or reduction of the number of units.

[0043] Working principle: The equipment operates under the negative pressure of the exhaust fan. Dust-laden gas enters the filter chamber through the tangential inlet pipe 24 along the tangential direction of the inner wall of the cylinder 25. Under the action of centrifugal force and friction of the inner wall of the cylinder, large dust particles settle rapidly, and the dust-laden gas is evenly distributed throughout the filter chamber, making the filtration velocity of each filter bag more uniform and effectively improving the dust removal efficiency.

[0044] When dust-laden gas passes through the filter bag 12, the dust is trapped on the outer surface of the bag, while the clean gas passes through the bag and enters the cleaning chamber, where it is discharged by the exhaust fan via the exhaust pipe 9. During cleaning, the drive unit 1 drives the air tank 6 to rotate, and the integrated sealing jet cleaning device 4 mounted on the air tank 6 rotates accordingly. When the sealing jet cleaning device 4 rotates to a certain equally divided sector of the sealing partition plate 8, the sealing cavity 42 seals against the sealing frame of that sector, isolating the filter bag in that sector from the dust-laden airflow, and the filter bag is in a non-working state, i.e., offline state. At this time, the pulse valve 41 opens, and compressed air is sprayed into the filter bag 12 through the jet pipe 47, the jet chamber 46, and the jet head 45 to remove the dust adhering to the outer surface of the filter bag. The flexible sealing element 441 ensures the sealing effect.

[0045] The central air tank 6 has multiple functions. In addition to storing its own air, it also transmits rotational torque and rotates freely under the action of the drive device 1. The upper part of the air tank 6 is connected to the integrated sealing jetting device 4, and the lower part is connected to the dust removal device 21. Both are supported by the bearing seat 16 and rotate with the air tank 6. The lower part of the air tank 6 is equipped with a pneumatic-electric integrated 360° rotary joint 15, which provides compressed air and power for pulse jetting.

[0046] The dust falling from the cleaning process lands on the scraper plate 20. The scraper blade 21, which rotates synchronously with the air tank 6, scrapes the dust to the dust inlet 29. The dust falls into the screw feeder 19 through the dust inlet 29 and is continuously and quantitatively conveyed by the screw feeder 19 to the designated dust discharge point.

[0047] The above are merely embodiments of the present invention. The circuits, electronic components, and modules involved are all prior art, fully achievable by those skilled in the art, and require no further explanation. The content protected by this application does not involve improvements to the software and methods. Commonly known structures and characteristics in the solutions are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are able to access all prior art in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of the present invention. These should also be considered within the scope of protection of the present invention, and will not affect the effectiveness of the implementation of the present invention or the practicality of the patent.

Claims

1. A rotary zone pulse-jet cleaning and dust removal filter, characterized in that: Includes a cylinder (25), the top of the cylinder (25) is provided with a driving device, the lower side of the driving device is provided with a sealing spray device (4), the lower side of the sealing spray device (4) is provided with a sealing partition plate (8), the lower side of the sealing partition plate (8) is provided with a filter device, the lower side of the filter device is provided with a scraper device, the lower side of the scraper device is provided with a screw feeder (19), and the screw feeder (19) is installed on the base (18); The sealing jetting device (4) includes an air tank (6) set on the central axis of the cylinder (25), a connecting seat (5) on the air tank (6), the connecting seat (5) being fixedly connected to the upper sealing plate (49), a side sealing plate (44) on the upper sealing plate (49), a sealing cavity (42) inside the side sealing plate (44), a pulse valve (41) inside the sealing cavity (42), a jetting pipe (47) below the pulse valve (41), a jetting chamber (46) below the jetting pipe (47), a jetting chamber partition (48) inside the jetting chamber (46), a jetting head (45) below the jetting chamber partition (48), and support rollers (43) on both sides of the sealing cavity (42). The lower end of the air tank (6) is rotatably connected to the ash scraping device.

2. The rotary zone pulse-jet cleaning and dust removal device as described in claim 1, characterized in that: The sealing cavity (42) is formed by a side sealing plate (44), an upper sealing plate (49), a lower sealing plate (491), and an arc plate with a support roller (43). Flexible sealing elements (441) are provided on all four sides of the lower side of the side sealing plate (44). The flexible sealing elements (441) are fitted with the fan-shaped dividing frame (82) of the sealing partition plate (8) to form a sealing chamber. The support roller (43) is slidably connected to the slide rail (10), which is located on the upper side of the sealing partition plate (8).

3. The rotary zone pulse-jet cleaning and dust removal device as described in claim 1, characterized in that: The sealing partition plate (8) includes a partition plate (83) provided on the lower side of the blower head (45), and fan-shaped dividing frames (82) provided on both sides of the partition plate (83). One end of the fan-shaped dividing frame (82) is provided with an inner ring frame (81), and the other end of the fan-shaped dividing frame (82) is provided with an outer ring frame (85). The partition plate (83) is provided with a plate hole (84), and a rib plate (86) is provided on the lower side of the plate hole (84). The sealing partition plate (8) is located in the upper part of the cylinder (25). The sealing partition plate (8) is divided into multiple equally divided sectors by the fan-shaped dividing frame (82) and the partition plate (83).

4. A rotary zoned injection dedusting and filtering equipment according to claim 1, characterized in that: The upper side of the cylinder (25) is provided with a sealing cover plate (7), the lower side of the cylinder (25) is provided with a scraper bottom plate (20), the lower side of the scraper bottom plate (20) is provided with a screw feeder (19), the upper side wall of the cylinder (25) is provided with an exhaust pipe (9), the lower side wall of the cylinder (25) is provided with an air inlet pipe (24); the sealing cover plate (7) is provided with a driving device.

5. The rotary zone pulse-jet cleaning and dust removal device as described in claim 1, characterized in that: The filter device includes a bag frame (11) disposed on the lower side of the sealing partition plate (8), and a bag (12) is provided on the bag frame (11). The filter device is disposed in multiple equally divided sectors, and the bag frame (11) and the bag (12) in each equally divided sector are arranged radially uniformly and circumferentially staggered.

6. A rotary zoned injection dedusting and filtering equipment according to claim 1, characterized in that: The ash scraping device includes a ash scraping base plate (20), an ash scraping blade (21) is provided on the ash scraping base plate (20), the ash scraping blade (21) is fixedly connected to the ash scraping plate seat (17), the ash scraping base plate (20) is provided with an ash inlet (29) on the lower side, and the ash scraping plate seat (17) is fixedly connected to the lower side of the gas storage tank (6).

7. A rotary zoned injection dedusting and filtering equipment according to claim 1, characterized in that: The drive device includes a support base (3) fixedly connected to the sealing cover plate (7), a motor (1) is provided on the support base (3), and a coupling (31) is fixedly connected to the output shaft of the motor (1); the lower end of the coupling (31) is fixedly connected to the upper end of the gas storage tank (6).

8. A rotary zoned injection dedusting and filtering equipment according to claim 1, characterized in that: The lower end of the air tank (6) is a hollow shaft structure. The hollow shaft is rotatably connected to the bearing seat (16), and the hollow shaft passes through the scraper base plate (20) and is connected to the rotary joint (15). The rotary joint (15) is provided with a compressed air pipe (13) and a power cord pipe (14) on its lower side. The compressed air pipe (13) is connected to the air tank (6).

9. The rotary zone pulse-jet cleaning and dust removal device as described in claim 3, characterized in that: The inner ring frame (81) is fixedly connected to the gas storage tank (6), and a sealing cylinder (23) is fixedly connected to the lower side of the inner ring frame (81); the gas storage tank (6) is provided inside the sealing cylinder (23), and a fixed bracket (22) is provided on the lower side of the sealing cylinder (23). The fixed bracket (22) is located between the filter device and the dust scraping device.

10. The rotary zone pulse-jet cleaning and dust removal device as described in claim 1, characterized in that: It also includes a multi-layered dust removal device, each of which is equipped with a separate sealing jet blowing device (4), a sealing partition plate (8), a filter device, a dust scraping device, a screw feeder (19), and an air inlet pipe (24); each layer is separated by a partition plate (27), and each layer shares the air storage tank (6) and the drive device, and the exhaust pipe (9) of each layer is connected to the air outlet merging pipe (28).

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