Filter cartridge type pulse dust collector

Abstract

The utility model relates to a filter cartridge type pulse dust collector which comprises a box body, an air inlet and an air outlet are formed in the box body, a filter cartridge is arranged in the box body, a cavity partition plate is further arranged in the box body, and the box body is divided into a filter cartridge mounting cavity and a pulse dust collection cavity by the cavity partition plate; the filter cartridge is arranged in the filter cartridge mounting cavity, the upper end of the filter cartridge is mounted at the upper end of the filter cartridge mounting cavity in a buckling manner, the lower end of the filter cartridge is supported and connected through a supporting net plate arranged in the box body, the pulse dust removal cavity is provided with a blowing system, and a dust collection box is further arranged at the bottom of the box body and is communicated with the filter cartridge mounting cavity. The cavity partition plate is arranged in the box body to divide the box body into the filter cartridge mounting cavity and the pulse dust removal cavity, the filter cartridges are mounted in a buckling manner, dust-containing gas enters the filter cartridge mounting cavity through the gas inlet, clean gas filtered by the filter cartridges enters the pulse dust removal cavity and is discharged through the gas outlet, the mounting and replacing processes of the filter cartridges are simplified, and the dust removal efficiency is improved. The ash removal efficiency is improved, and the maintenance time and cost are reduced.

Description

Technical Field

[0001] The utility model patent relates to the field of dust collectors, in particular to a cartridge type pulse dust collector. Background Art

[0002] With the acceleration of industrialization and rising environmental awareness, industrial controls on dust emissions are becoming increasingly stringent. Among the numerous dust treatment devices, pulse dust collectors are widely used due to their high dust removal performance. While traditional bag dust collectors can meet dust removal needs to a certain extent, they have some shortcomings in practice, such as the complex and time-consuming bag replacement process and the tendency of bags to clog under certain conditions. Furthermore, with the development and advancement of technology, the market is placing higher demands on equipment miniaturization, efficiency, and automation.

[0003] In recent years, cartridge-type pulse dust collectors have been widely used in industrial dust removal due to their compact structure, large filtration area, and excellent cleaning performance. These dust collectors use cartridge filters as their filter elements. Compared to traditional bag filters, cartridge filters not only offer higher filtration efficiency but are also easier to replace, significantly improving work efficiency. Cartridge-type pulse dust collectors primarily clean dust through compressed air pulse backflush, enabling them to maintain optimal performance even when handling high dust concentrations. Furthermore, thanks to pulse control technology, the pulse interval and spray time can be adjusted according to actual conditions to achieve optimal cleaning results.

[0004] Although the filter cartridge pulse dust collector has made great improvements in dust removal efficiency and structural design, there are still some problems in practical application. First, in terms of filter cartridge replacement, the existing filter cartridge is mainly connected to the housing through flanges and bolts. When replacing, the bolts need to be disassembled. However, the space inside the housing is relatively small, and the space left for maintenance is also small, which makes filter cartridge replacement inconvenient. In addition, when cleaning, high-pressure gas is sprayed into the filter cartridge through the blowpipe. When back-blowing, the blowpipe is generally fixed to the upper part of the filter cartridge, and the position and angle of the spray are fixed, which can easily cause uneven spraying. In addition, the efficiency of reverse spraying is also low. Utility Model Content

[0005] The purpose of the utility model is to solve the problems of low filter cartridge replacement efficiency and low reverse jet dust removal efficiency. The utility model provides a filter cartridge type pulse dust collector.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A cartridge-type pulse dust collector comprises a box body, an air inlet and an air outlet are provided on the box body, a filter cartridge is provided in the box body, and a cavity partition plate is also provided in the box body, the cavity partition plate divides the box body into a filter cartridge installation cavity and a pulse dust removal cavity; the filter cartridge is arranged in the filter cartridge installation cavity, the upper end of the filter cartridge is mounted on the upper end of the filter cartridge installation cavity by a snap-fit ​​type, and the lower end of the filter cartridge is supported and connected by a supporting mesh plate provided in the box body, and a blowing system is provided in the pulse dust removal cavity, the blowing system comprises a pulse controller, an electromagnetic pulse valve and a blowing pipe, and the blowing pipe is connected to an air bag provided outside the box body through the electromagnetic pulse valve; a dust collecting box is also provided at the bottom of the box body, and the dust collecting box is communicated with the filter cartridge installation cavity.

[0008] The above technical solution divides the housing into a cartridge installation chamber and a pulse dust removal chamber by installing a cavity divider within the housing. The filter cartridges are installed using a snap-on design. Dust-laden gas enters the cartridge installation chamber through the air inlet, and clean gas, filtered by the filter cartridges, enters the pulse dust removal chamber and is discharged through the air outlet. When dust cleaning is required, the pulse controller activates the electromagnetic pulse valve, and compressed air blows back through the blowpipe to remove dust accumulated on the filter cartridge surface, which then falls into the dust collection box. This structure simplifies the installation and replacement process for the filter cartridges, improves cleaning efficiency, and reduces maintenance time and costs.

[0009] As a preferred embodiment of the present invention, a connecting flange is connected to the upper end of the filter cartridge, a positioning block is provided on the upper end surface of the connecting flange, a positioning groove matching the positioning block is provided on the cavity partition plate, an elastic claw is also provided on the cavity partition plate, and a groove for the elastic claw to engage is provided on the connecting flange.

[0010] Through the above technical solution, by arranging a positioning block and a slot on the filter cartridge connecting flange, which cooperate with the positioning slot and elastic claw on the cavity partition plate, when the filter cartridge is installed, the positioning block is embedded in the positioning slot and the elastic claw is inserted into the slot, ensuring that the filter cartridge is firmly fixed on the partition plate, avoiding the complexity of traditional flange and bolt fixing, and making the installation and removal of the filter cartridge faster and easier.

[0011] As a preferred embodiment of the present invention, it also includes a filter cartridge mounting plate, which is arranged at the lower end of the cavity partition plate, and is connected to a connecting flange at the upper end of the filter cartridge, and a positioning block is provided on the upper end surface of the connecting flange, and a positioning groove matching the positioning block is provided on the filter cartridge mounting plate, and an elastic claw is also provided on the filter cartridge mounting plate, and a groove for engaging the elastic claw is provided on the connecting flange; a rotating shaft is connected to the center of the filter cartridge mounting plate, and the rotating shaft passes through the cavity partition plate, the pulse dust removal chamber and is connected to a driving mechanism outside the box, and the driving mechanism can drive the rotating shaft to rotate.

[0012] Through the above technical solution, the positioning block on the filter cartridge mounting plate cooperates with the positioning groove and elastic claws on the filter cartridge mounting plate to fix the filter cartridge. The external driving mechanism drives the filter cartridge to rotate through the rotating shaft, and can rotate the filter cartridge to the position of the inspection port, which is convenient for replacing the filter cartridge and is also suitable for replacing a single filter cartridge.

[0013] As a preferred embodiment of the present invention, a support block is provided at the lower end of the filter cartridge installation cavity, the support mesh plate is connected to the support block via a spring, and a limiting mechanism for limiting the height position of the support mesh plate is also provided on the box body.

[0014] With this technical solution, a support block is installed at the lower end of the filter cartridge mounting cavity. The support screen is connected to the support block via a spring, and a limit mechanism is also provided. The support screen provides support for the filter cartridge, while the spring allows the support screen to move up and down, facilitating assembly and disassembly of the filter cartridge. The limit mechanism secures the support screen in place using a latch. The spring and limit mechanism simplify the assembly and disassembly process while ensuring the filter cartridge remains stable and reliable during operation.

[0015] As a preferred embodiment of the present invention, the limiting mechanism includes a latch hole and a latch provided on the box body, and the latch can be inserted into the latch hole from the outside of the box body.

[0016] Through the above technical solution, when replacing the filter cartridge, the supporting mesh plate is pressed to a certain position and fixed with a pin. This method is fast and safe and effectively prevents the filter cartridge from accidentally falling off during the replacement process.

[0017] As a preferred embodiment of the present invention, the blowing pipe is connected to a telescopic mechanism, and the telescopic mechanism can drive the blowing pipe to extend into or withdraw from the filter cartridge.

[0018] Through the above technical solution, the blow pipe is connected to the telescopic mechanism and can be extended into or out of the filter cartridge as needed. Driven by the telescopic mechanism, the blow pipe penetrates deep into the filter cartridge to achieve more precise cleaning operations. At the same time, the telescopic function enhances the flexibility and coverage of cleaning and improves the cleaning effect.

[0019] As a preferred embodiment of the present invention, a plurality of blowing ports at different angles are provided on the blowing pipe.

[0020] Through the above technical solution, by arranging multiple blowing ports at different angles on the blowing pipe, it is ensured that the blowing gas can fully cover the surface of the filter cartridge, thereby increasing the uniformity of the blowing, reducing dead angles, and improving the cleaning effect.

[0021] As a preferred embodiment of the present invention, a cover plate is further provided on the blowing pipe, the telescopic mechanism drives the blowing pipe to extend into the filter cartridge, and the cover plate can cover the opening of the filter cartridge.

[0022] Through the above technical solution, by arranging a cover plate on the blowing pipe, when the telescopic mechanism drives the blowing pipe to extend into the filter cartridge, the cover plate can close the filter cartridge opening to prevent gas leakage during the blowing process, reduce energy loss, and improve the cleaning efficiency.

[0023] As a preferred embodiment of the present invention, a reverse flow guide cone is further provided in the filter cartridge.

[0024] Through the above technical solution, the direction of the airflow is changed by the reverse guide cone, which helps the dust to be deposited at the bottom of the filter cartridge, helps to collect the dust in a centralized manner, facilitates cleaning, and reduces secondary pollution.

[0025] As a preferred embodiment of the present invention, a dust conveying auger is further provided at the bottom of the dust collecting box.

[0026] Through the above technical solution, the dust is transported to the collection device through the auger at the bottom of the dust collecting box, which can effectively transport the collected dust out, ensure the continuous operation of the dust removal system, and reduce the maintenance frequency.

[0027] In summary, the present invention has at least one of the following beneficial technical effects:

[0028] 1. This utility model utilizes positioning blocks on the filter cartridge connection flange and matching positioning slots on the chamber divider. The elastic claws engage the slots, enabling rapid installation and removal of the filter cartridge. This design eliminates the need for complex tools and lengthy manual labor for filter cartridge replacement, enabling simple manual installation and removal. This significantly improves work efficiency and reduces labor costs. Furthermore, the support mesh ensures that the filter cartridge will not loosen or even fall off due to prolonged vibration during use, enhancing system stability.

[0029] 2. The blowpipe used in the present invention is equipped with a telescopic mechanism, which can be extended into or out of the filter cartridge as needed, thereby ensuring that the compressed air can directly act on the inside of the filter cartridge, allowing the blowing force to more effectively penetrate the filter cartridge and improve the dust cleaning efficiency. The blowpipe is also provided with a plurality of blowing ports at different angles, which can spray in different directions to form a full range of cleaning coverage, thus avoiding the problem of local blockage caused by uneven blowing. In addition, the cover plate equipped on the blowpipe can close the filter cartridge opening when it penetrates into the filter cartridge under the drive of the telescopic mechanism, preventing gas leakage during the blowing process, and ensuring that the energy of the compressed air is concentrated on dust cleaning rather than being lost in the air. These improvement measures work together to improve the effect of reverse blowing and cleaning, ensuring that the equipment can still maintain a good working condition when handling high-concentration dust.

[0030] 3. The rotating shaft drives the rotation of the filter cartridge mounting plate, allowing each filter cartridge to be easily rotated to the access port. Even filter cartridges located far from the access port can be easily replaced without removing other filter cartridges. This not only reduces labor intensity and improves work efficiency, but also reduces the potential damage risk caused by frequent disassembly and assembly, thereby extending the service life of the equipment. Furthermore, since any filter cartridge requiring replacement can be quickly located, equipment operating efficiency is improved, downtime is reduced, and production continuity is ensured. This greatly facilitates filter cartridge maintenance, making the cartridge-type pulse dust collector more convenient and efficient in practical application.

[0031] 4. This utility model features a dust conveying auger at the bottom of the dust collection box, which effectively transports collected dust, ensuring continuous operation of the dust removal system and reducing maintenance frequency. Furthermore, a reverse flow cone added to the filter cartridge redirects the airflow, helping dust settle at the bottom of the filter cartridge, facilitating centralized dust collection and reducing the possibility of secondary contamination. This makes the entire dust removal process more efficient and easier to manage, while also reducing the cost and difficulty of subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present utility model.

[0033] Figure 2 It is a cross-sectional view of embodiment 1 of the present invention.

[0034] Figure 3 It is a schematic diagram of the filter cartridge structure according to Example 1 of the present invention.

[0035] Figure 4 It is a structural schematic diagram of the cavity partition plate according to Example 1 of the present invention.

[0036] Figure 5 It is a structural diagram of embodiment 2 of the present utility model.

[0037] Figure 6 It is a cross-sectional structural diagram of Example 2 of the present utility model.

[0038] Explanation of the accompanying symbols: 1. Box body; 2. Air inlet; 3. Air outlet; 4. Filter cartridge; 5. Cavity partition plate; 6. Filter cartridge mounting cavity; 7. Pulse dust removal cavity; 8. Support mesh plate; 9. Blowing pipe; 10. Electromagnetic pulse valve; 11. Air bag; 12. Dust collecting box; 13. Connecting flange; 14. Positioning block; 15. Positioning groove; 16. Elastic claw; 17. Slot; 18. Filter cartridge mounting plate; 19. Dust feeding auger; 20. Rotating shaft; 21. Driving mechanism; 22. Support block; 23. Pin hole; 24. Pin; 25. Telescopic mechanism; 26. Blowing port; 27. Cover plate; 28. Guide cone; 29. ​​Spring. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-6 The utility model patent is further described in detail.

[0040] Example 1:

[0041] like Figures 1 to 4 As shown, this embodiment discloses a cartridge-type pulse dust collector, comprising a housing 1, on which an air inlet 2 and an air outlet 3 are provided. A filter cartridge 4 is provided within the housing 1, and a connecting flange 13 is fixedly connected to the upper end of the filter cartridge 4. A cavity partition plate 5 is also provided within the housing 1, and the cavity partition plate 5 is provided in the middle and upper part of the housing 1. The cavity partition plate 5 divides the housing 1 into a filter cartridge mounting cavity 6 and a pulse dust removal cavity 7. In this embodiment, the air inlet 2 is provided on the housing 1 and is connected to the filter cartridge mounting cavity 6, and the air outlet 2 is provided on the housing 1 and is connected to the pulse dust removal cavity 7.

[0042] The filter cartridge 4 is arranged in the filter cartridge installation cavity 6, and the upper end of the filter cartridge 4 is mounted on the upper end of the filter cartridge installation cavity 6 by a snap-fit ​​method. In this embodiment, two positioning blocks 14 are provided on the upper end face of each connecting flange 13, and two positioning grooves 15 are provided on the lower end face of the cavity partition plate 5 to cooperate with the positioning blocks 14. An elastic claw 16 is also provided on the cavity partition plate 5, and a card groove 17 for engaging the elastic claw 16 is provided on the connecting flange 13. When the filter cartridge 4 is installed By engaging the positioning block 14 on the connecting flange 13 into the positioning groove 15 on the lower end surface of the cavity partition plate 5, the filter cartridge 4 can be quickly positioned, and then by engaging the elastic claw 16 into the groove 17 on the lower end surface of the connecting flange 13, the installation of a filter cartridge 4 can be completed. This method enables the filter cartridge 4 to be quickly installed on the cavity partition plate 5. An opening corresponding to the filter cartridge 4 is provided on the cavity partition plate 5, so that the gas can enter the pulse dust removal chamber 7 from the filter cartridge 4 and be discharged from the air outlet 3.

[0043] Since the filter cartridge 4 has a certain weight, in order to prevent the filter cartridge 4 from falling off the cavity partition plate 5 after long-term use, in this embodiment, the lower end of the filter cartridge 4 is supported and connected by a supporting mesh plate 8 set in the box body 1.

[0044] Reference Figure 3 A support block 22 is provided at the lower end of the filter cartridge mounting cavity 6. The support mesh 8 is connected to the support block 22 via a spring 29. Under the force of the spring 29, the support mesh 8 always contacts the lower end of the filter cartridge 4, thereby providing support for the filter cartridge 4. When the filter cartridge 4 needs to be replaced or removed, the support mesh 8 is pressed downward to disengage the support mesh 8 from the filter cartridge 4, allowing the filter cartridge 4 to be removed.

[0045] To facilitate the separation of the support mesh 8 from the filter cartridge 4 when removing the filter cartridge 4, a limiting mechanism is provided on the housing 1 to limit the height of the support mesh 8. In this embodiment, the limiting mechanism includes a latch hole 23 and a latch 24 provided on the housing 1. The latch 24 can be inserted into the latch hole 23 from outside the housing 1. When the filter cartridge 4 needs to be removed, the support mesh 8 is lowered to below the height of the latch hole 23, and then the latch 24 is inserted into the latch hole 23 from outside the housing 1.

[0046] A spraying system is provided in the pulse dust removal chamber 7. In this embodiment, the spraying system includes a pulse controller, an electromagnetic pulse valve 10, and a spray pipe 9. The spray pipe 9 is connected to an air bag 11 provided outside the housing 1 via the electromagnetic pulse valve 10. The air bag 11 is equipped with an air compressor, an oil-water separator, an air storage tank, a filter tank, etc. (provided outside the housing 1, not shown in the figure). The input end of the electromagnetic pulse valve 10 is connected to the pipe joint of the air bag 11, and the output end of the electromagnetic pulse valve 10 is connected to the spray pipe 9. When the pulse controller is in working hours, the pulse controller sends a signal to open the electromagnetic pulse valve 10, and compressed air is sprayed into the spray pipe 9 through the output port. When the pulse control signal disappears, the electromagnetic pulse valve 10 closes. In this way, the electromagnetic pulse valve 10 forms an air pulse from opening to closing, causing an instantaneous positive pressure shock in the filter cartridge 4, thereby achieving dust cleaning of the filter cartridge 4.

[0047] To improve the dust removal effect of the spraying, in this embodiment, the spray pipe is connected to a telescopic mechanism 25, which can drive the spray pipe 9 to extend into or out of the filter cartridge 4. In this embodiment, the telescopic mechanism 25 is a cylinder, which can drive the spray pipe 9 to extend into or out of the filter cartridge 4. By extending the spray pipe 9 into the filter cartridge 4, it can be ensured that the compressed air acts directly on the interior of the filter cartridge 4, so that the force of the spray can more effectively penetrate the filter cartridge 4, thereby improving the dust removal efficiency.

[0048] The blow pipe 9 is provided with a plurality of blow ports 26 at different angles. Through the blow ports 26 at different angles, spraying can be performed in different directions, which helps to form a full range of cleaning coverage, ensuring that every corner of the filter cartridge 4 is cleaned. This multi-angle spraying helps prevent the problem of localized filter cartridge 4 clogging caused by uneven spraying.

[0049] A cover plate 27 is also provided on the blowpipe 9. The telescopic mechanism 25 drives the blowpipe 9 into the filter cartridge 4, and the cover plate 27 covers the opening of the filter cartridge 4. In this embodiment, a reverse flow cone 28 is also provided within the filter cartridge 4. This reverse flow cone 28 redirects the airflow, helping to deposit dust at the bottom of the filter cartridge, centrally collecting dust for easier cleaning and reducing secondary contamination. While the blowpipe 9 extends into the filter cartridge 4, the cover plate 27, which covers the port of the filter cartridge 4, effectively prevents air leakage during the blowing process, ensuring that the compressed air's energy is concentrated on dust removal rather than being dissipated into the air, thereby improving blowing efficiency.

[0050] A dust collecting box 12 is also provided at the bottom of the box body 1. The dust collecting box 12 is connected to the filter cartridge installation cavity 6. The dust filtered by the filter cartridge 4 will fall to the bottom of the box body 1 after backflushing, and then enter the integrated box 12. A dust feeding auger 19 is also provided at the bottom of the dust collecting box 12. The dust feeding auger 19 can conveniently transport the dust to the edge of the box body 1 for easy collection of the dust.

[0051] Example 2:

[0052] The rest of this embodiment is the same as that of embodiment 1, except that, since the inspection port provided on the housing 1 is small, and a plurality of filter cartridges 4 are installed in the housing 1, for the filter cartridge 4 on the side of the housing 1 away from the inspection port, if the filter cartridge 4 needs to be removed separately, all the filter cartridges 4 on the side close to the inspection port need to be removed, resulting in a large overall engineering workload. Therefore, a filter cartridge mounting plate 18 is also provided in this embodiment.

[0053] Reference Figure 5 and Figure 6 The filter cartridge mounting plate 18 is arranged at the lower end of the cavity partition plate 5, and a connecting flange 13 is connected to the upper end of the filter cartridge 4. A positioning block 14 is provided on the upper end surface of the connecting flange 13, and a positioning groove 15 that cooperates with the positioning block 14 is provided on the filter cartridge mounting plate 18. An elastic claw 16 is also provided on the filter cartridge mounting plate 18, and a groove 17 for the elastic claw 16 to engage is provided on the connecting flange 13. A rotating shaft 20 is connected to the center of the filter cartridge mounting plate 18, and the rotating shaft 20 passes through the cavity partition plate 5 and the pulse dust removal chamber 7 and is connected to a driving mechanism 21 outside the housing 1. The driving mechanism 21 can drive the rotating shaft 20 to rotate. A bearing seat connected to the rotating shaft 20 is also provided on the housing 1. In this embodiment, the driving mechanism 21 is a stepper motor acceleration and reduction box.

[0054] In this embodiment of the cartridge-type pulse dust collector, when the filter cartridge 4 needs to be replaced, the support mesh 8 is pressed down to below the height of the latch hole 23. Then, the latch 24 is inserted into the latch hole 23 from outside the housing 1, disengaging the filter cartridge 4 from the support mesh 8. The drive mechanism 21 then operates, driving the rotating shaft 20 to rotate, and the filter cartridge 4 to be replaced is rotated to the vicinity of the inspection port.

[0055] The above are all preferred embodiments of the present utility model patent, and are not intended to limit the scope of protection of the present utility model patent. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model patent should be included in the scope of protection of the present utility model patent.

Claims

1. A cartridge-type pulse dust collector, comprising a housing (1), an air inlet (2) and an air outlet (3) provided on the housing (1), a filter cartridge (4) provided inside the housing (1), characterized in that: A cavity partition plate (5) is also provided in the box body (1), and the cavity partition plate (5) divides the box body (1) into a filter cartridge installation cavity (6) and a pulse dust removal cavity (7); the filter cartridge (4) is provided in the filter cartridge installation cavity (6), the upper end of the filter cartridge (4) is mounted on the upper end of the filter cartridge installation cavity (6) by snap-fitting, and the lower end of the filter cartridge (4) is supported and connected by a supporting mesh plate (8) provided in the box body (1); a blowing system is provided in the pulse dust removal cavity (7), and the blowing system includes a pulse controller, an electromagnetic pulse valve (10) and a blowing pipe (9), and the blowing pipe (9) is connected to an air bag (11) provided outside the box body (1) through the electromagnetic pulse valve (10); a dust collecting box (12) is also provided at the bottom of the box body (1), and the dust collecting box (12) is communicated with the filter cartridge installation cavity (6).

2. The cartridge-type pulse dust collector according to claim 1, characterized in that: A connecting flange (13) is connected to the upper end of the filter cartridge (4), a positioning block (14) is provided on the upper end surface of the connecting flange (13), a positioning groove (15) matching the positioning block (14) is provided on the cavity partition plate (5), an elastic claw (16) is also provided on the cavity partition plate (5), and a groove (17) for engaging the elastic claw (16) is provided on the connecting flange (13).

3. The cartridge-type pulse dust collector according to claim 1, characterized in that: The invention also includes a filter cartridge mounting plate (18), which is arranged at the lower end of the cavity partition plate (5), a connecting flange (13) is connected to the upper end of the filter cartridge (4), a positioning block (14) is provided on the upper end surface of the connecting flange (13), a positioning groove (15) matched with the positioning block (14) is provided on the filter cartridge mounting plate (18), an elastic claw (16) is also provided on the filter cartridge mounting plate (18), and a groove (17) for the elastic claw (16) to engage is provided on the connecting flange (13); a rotating shaft (20) is connected to the center of the filter cartridge mounting plate (18), and the rotating shaft (20) passes through the cavity partition plate (5), the pulse dust removal chamber (7), and is connected to a driving mechanism (21) outside the box body (1), and the driving mechanism (21) can drive the rotating shaft (20) to rotate.

4. A cartridge-type pulse dust collector according to claim 2 or 3, characterized in that: A support block (22) is provided at the lower end of the filter cartridge installation cavity (6), the support mesh plate (8) is connected to the support block (22) via a spring (29), and a limiting mechanism for limiting the height position of the support mesh plate (8) is also provided on the box body (1).

5. The cartridge-type pulse dust collector according to claim 4, characterized in that: The limiting mechanism comprises a latch hole (23) and a latch (24) provided on the box body (1); the latch (24) can be inserted into the latch hole (23) from the outside of the box body (1).

6. The cartridge-type pulse dust collector according to claim 1, characterized in that: The blowing pipe is connected to a telescopic mechanism (25), and the telescopic mechanism (25) can drive the blowing pipe (9) to extend into or withdraw from the filter cartridge (4).

7. The cartridge-type pulse dust collector according to claim 6, characterized in that: The blowing pipe (9) is provided with a plurality of blowing ports (26) at different angles.

8. The cartridge-type pulse dust collector according to claim 6, characterized in that: A cover plate (27) is also provided on the blowing pipe (9). The telescopic mechanism (25) drives the blowing pipe (9) to extend into the filter cartridge (4). The cover plate (27) can cover the opening of the filter cartridge (4).

9. The cartridge-type pulse dust collector according to claim 1, characterized in that: A reverse flow guide cone (28) is also provided in the filter cartridge (4).

10. The cartridge-type pulse dust collector according to claim 1, characterized in that: A dust feeding auger (19) is also provided at the bottom of the dust collecting box (12).

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