An industrial dust filter cartridge

Abstract

The application belongs to the technical field of dust removal filter cartridges, and particularly discloses an industrial dust removal filter cartridge, which comprises a cylinder body, a gas inlet pipe is communicated with one side of the cylinder body, a dust discharge pipe is communicated with the other side of the cylinder body, and a filter module is arranged in the cylinder body; through the modular splicing star-shaped filter core structure, the maintenance cost and material loss are significantly reduced, the filter core is decomposed into a plurality of independent filter plate units, a first connecting block and a second connecting block, adjacent filter plate units are fixedly connected with the first connecting block and the second connecting block respectively, a filter sector which can be independently disassembled is formed, a plurality of sectors are spliced at the head and tail through the cooperation mechanism of a sliding groove and a sliding bar, and a complete star-shaped filter core is formed; when one piece of filter plate is failed due to local damage, an operator only needs to release the compression of the filter module by the cover body, and then the corresponding damaged sector can be individually extracted for replacement, and the whole filter core does not need to be replaced.

Description

Technical Field

[0001] This invention belongs to the field of dust collector filter cartridge technology, and specifically discloses an industrial dust collector filter cartridge. Background Technology

[0002] In industrial production processes such as welding, grinding, pharmaceuticals, and food processing, large amounts of dust-laden gas are generated, requiring purification using dust removal equipment. Cartridge dust collectors are widely used due to their advantages of large filtration area, small size, and high filtration efficiency. Existing industrial dust collector cartridges typically consist of a cartridge body, an inlet pipe, an outlet pipe, and a filter module located inside the cartridge body. Dust-laden gas flows from the outside of the filter element to the inside, where dust is trapped on the outer surface of the filter element, and the purified gas is discharged from the outlet pipe. During long-term use, existing filter cartridges mainly have the following problems: First, the maintenance cost of filter cartridges is relatively high. To achieve a larger filtration area, filter cartridges are often designed with a star-shaped pleated structure, where multiple V-shaped filter plates are arranged along the circumference to form a star-shaped outline. However, traditional star-shaped filter cartridges are mostly manufactured using a one-piece molding process. When a filter plate in a certain area is damaged due to repeated backflushing, dust impact, or accidental scratching, the entire filter cartridge must be scrapped and replaced because the damaged part cannot be replaced individually. This leads to increased operating costs and unnecessary waste of resources. Secondly, there is a serious dust accumulation problem at the inner corner joints of the filter element (i.e., the root gap area between two adjacent V-shaped filter plates). During the filtration process, the airflow in this inner corner area is poor, and dust easily accumulates and gradually caking due to bridging effect and electrostatic adsorption. Traditional backflushing cleaning methods use compressed gas to instantly blow from the inside of the filter element outward, which is ineffective in cleaning this area. Long-term accumulation of caking dust will erode the effective filtration area, reduce dust removal efficiency, increase filtration resistance, lead to increased system energy consumption, and even provide a breeding ground for microorganisms. Therefore, those skilled in the art have proposed an industrial dust removal filter cartridge to solve the problems mentioned above. Summary of the Invention

[0003] In view of this, the technical problem to be solved by the present invention is to provide an industrial dust collector filter cartridge to solve the problems of high maintenance cost and difficulty in cleaning dead corners of the existing filter cartridge.

[0004] To achieve the above objectives, the present invention provides an industrial dust collector filter cartridge, including a cylinder body, an air inlet pipe connected to one side of the cylinder body, a dust outlet pipe connected to the other side of the cylinder body, a filter module disposed inside the cylinder body, a detachable cover disposed on the top of the cylinder body, an exhaust pipe disposed on the top of the cover body, and the lower end of the exhaust pipe penetrating the cover body and communicating with the cylinder body. The filtration module consists of a filter element assembly, a backwash assembly, and a mounting platform. The filter element assembly is located on top of the mounting platform, and the backwash assembly is located on top of the filter element assembly. The inner bottom wall of the cylinder is fixedly connected to a limiting seat that matches the mounting platform to limit the position of the filter module. The outer shape of the mounting platform matches the inner shape of the limiting seat, and the outer side of the limiting seat is set as a cone.

[0005] In the above technical solution, preferably, the filter element assembly includes several groups of first connecting blocks and second connecting blocks, and a filter plate is fixedly connected between the first connecting blocks and the second connecting blocks in the same group. Several groups of first connecting blocks, second connecting blocks and filter plates are spliced ​​together to form a star-shaped filter element.

[0006] In the above technical solution, preferably, docking components are provided on the opposite sides of two adjacent first connecting blocks and two adjacent second connecting blocks, and a sliding groove is opened on the surface of one of the first connecting blocks and the second connecting block, and a sliding strip matching the sliding groove is fixedly connected to the surface of the other first connecting block and the second connecting block.

[0007] In the above technical solution, preferably, a knocking component is provided on the side of the two adjacent second connecting blocks away from the center of the star-shaped filter element; The striking assembly includes a striking strip fixedly connected to the surface of one of the second connecting blocks, and a guide block with a uniform distribution fixedly connected to the surface of the other second connecting block, the guide block having an isosceles trapezoidal cross-sectional shape.

[0008] In the above technical solution, preferably, the backflushing assembly includes a fixing ring fixedly connected to the top of the star-shaped filter element, the top of the fixing ring is provided with a rotating groove, a sliding plate is slidably connected to the inner wall of the fixing ring, a trigger rod is provided on the surface of the sliding plate, one end of the trigger rod passes through the interior of the rotating groove, and the other end of the trigger rod passes through the fixing ring and is fixedly connected to the top of the second connecting block to which a knocking strip is fixedly connected.

[0009] In the above technical solution, preferably, a spring is fixedly connected to the bottom of the skateboard, and the lower end of the spring is fixedly connected to the inner wall of the fixing ring.

[0010] In the above technical solution, preferably, the top of the fixed ring is rotatably connected to a rotating ring, the bottom of the rotating ring is fixedly connected to a rotating ring located inside the rotating groove, the surface of the rotating ring is provided with uniformly distributed trigger cavities, one side of the inner wall of the trigger cavity is inclined, and the upper end of the trigger rod is in contact with the surface of the rotating ring.

[0011] In the above technical solution, preferably, the top of the rotating ring is provided with a mounting shell, the bottom of the mounting shell is fixedly connected to the top of the fixed ring, the rotating ring is located inside the mounting shell, a connecting ring is fixedly connected to the inner side of the mounting shell and is arranged on the same axis as the center hole of the rotating ring, an exhaust hole is opened on the surface of the connecting ring, a one-way valve is provided on the inner wall of the exhaust hole, and a backflushing pipe is provided on the surface of the mounting shell.

[0012] In the above technical solution, preferably, a filter ring is fixedly connected to the top of the rotating ring, the inner side of the filter ring is in contact with the outer side of the connecting ring, and uniformly distributed drive blades are fixedly connected to the top of the rotating ring.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The modular, spliced ​​star-shaped filter element structure significantly reduces maintenance costs and material loss. It is decomposed into multiple independent filter plate units, a first connecting block, and a second connecting block. Adjacent filter plate units are fixedly connected to the first and second connecting blocks, forming an independently detachable filter sector. Multiple sectors are spliced ​​end to end through the cooperation mechanism of sliding grooves and sliding strips to form a complete star-shaped filter element. When one of the filter plates fails due to partial damage, the operator only needs to release the cover from the filter module to extract the corresponding damaged sector for replacement, without having to replace the entire filter element. The second connecting block is used as a dedicated inner corner connecting component, replacing the inner corner root formed by the integral bending of the filter plate in the traditional solution. Since the second connecting block is a solid or non-permeable structure and does not have gas filtration function, it avoids the concentrated penetration and adhesion of dust-containing airflow at that point from the source, significantly reducing the initial adsorption amount and accumulation rate of dust. The adjacent second connecting blocks are connected by the sliding groove and the sliding strip to form a movable connection that can slide relative to each other. During cleaning, the external driving mechanism drives the specific second connecting blocks to move relative to each other, which can cause the adhesion base of the clump dust to be misaligned and destroyed, effectively reducing the adhesion of the dust. The relative sliding shearing action can directly scrape off the accumulated surface dust, turning the static dust accumulation dead corner into a dynamic area that can be actively cleaned, solving the technical problem that the traditional backflushing method is powerless against geometric dead corners. This invention features a backwash assembly at the top of a star-shaped filter element, comprising a rotating ring, a drive blade, a rotating ring, and a trigger chamber. When high-pressure backwash gas is injected into the mounting housing for dust removal, the airflow acts on the drive blade before purging the filter element, driving the rotating ring and the rotating ring with the inclined trigger chamber to rotate. This, in conjunction with the rotating ring, trigger chamber, trigger rod, and spring, drives the second connecting block, enabling simultaneous sliding dust removal and tapping dust removal during the backwash process. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram illustrating the separation process of the present invention; Figure 3 This is a cross-sectional schematic diagram of the cylinder of the present invention; Figure 4 This is a schematic diagram of the structure of the filtering module of the present invention; Figure 5 This is a partial exploded view of the filtering module of the present invention; Figure 6 This is a partial explosion diagram of the recoil assembly of the present invention; Figure 7 for Figure 6 Enlarged view of A in the middle; Figure 8 This is a schematic diagram showing the distribution of the first connecting block, the second connecting block, and the filter plate of the present invention; Figure 9 for Figure 8 A magnified view of B in the middle.

[0015] In the diagram: 1. Cylinder; 101. Inlet pipe; 102. Dust exhaust pipe; 103. Limiting seat; 2. Cover; 201. Exhaust pipe; 3. Filter module; 31. Filter element assembly; 311. First connecting block; 312. Second connecting block; 313. Filter plate; 314. Sliding bar; 315. Striking bar; 316. Guide block; 32. Backflush assembly; 321. Backflush pipe; 322. Exhaust port; 323. Mounting shell; 324. Drive blade; 325. Rotating ring; 326. Filter ring; 327. Rotating ring; 328. Trigger chamber; 329. Fixing ring; 3210. Rotating groove; 3211. Slide plate; 3212. Spring; 3213. Trigger rod; 33. Mounting platform. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0018] like Figures 1-9 An industrial dust collector filter cartridge is shown, including a cylinder body 1. An air inlet pipe 101 is connected to one side of the cylinder body 1, and a dust discharge pipe 102 is connected to the other side of the cylinder body 1. A filter module 3 is installed inside the cylinder body 1. A detachable cover 2 is installed on the top of the cylinder body 1. An exhaust pipe 201 is installed on the top of the cover 2. The lower end of the exhaust pipe 201 passes through the cover 2 and is connected to the cylinder body 1. The filter module 3 consists of a filter element assembly 31, a backwash assembly 32, and a mounting platform 33. The filter element assembly 31 is located on top of the mounting platform 33, and the backwash assembly 32 is located on top of the filter element assembly 31. The inner bottom wall of the cylinder 1 is fixedly connected to a limiting seat 103 that cooperates with the mounting platform 33 to limit the position of the filter module 3. The outer shape of the mounting platform 33 matches the inner shape of the limiting seat 103, and the outer side of the limiting seat 103 is set as a cone.

[0019] The gas that needs to be dusted is introduced into the interior of the cylinder 1 through the air inlet pipe 101 and flows from the outside of the filter element assembly 31 to the inside of the filter element assembly 31. In this process, the gas is dusted and the dusted gas can be discharged through the exhaust pipe 201. The backwash assembly 32 is used for backwashing and cleaning when there is a lot of dust and material adhering to the surface of the filter element assembly 31 after a long dust removal time; The mounting platform 33 and the limiting seat 103 are designed to prevent the filter module 3 from shifting during use. The cover 2 can be fixed to the cylinder 1 by bolts or other fasteners. After installation, the end of the cover 2 can press against the end of the backflush assembly 32, providing a downward force during use to limit the position of the filter module 3 in conjunction with the mounting platform 33 and the limiting seat 103, thereby improving the stability during use. Furthermore, removing the cover 2 releases the limiting force, making it easy to disassemble the filter module 3.

[0020] like Figures 1-9 As shown, the filter element assembly 31 includes several sets of first connecting blocks 311 and second connecting blocks 312. A filter plate 313 is fixedly connected between the first connecting blocks 311 and the second connecting blocks 312 in the same set. Several sets of first connecting blocks 311, second connecting blocks 312 and filter plates 313 are spliced ​​together to form a star-shaped filter element.

[0021] A docking assembly is provided on the opposite sides of two adjacent first connecting blocks 311 and two adjacent second connecting blocks 312. A sliding groove is opened on the surface of one of the first connecting blocks 311 and the second connecting block 312, and a sliding strip 314 matching the sliding groove is fixedly connected to the surface of the other first connecting block 311 and the second connecting block 312. Specifically, by splicing two first connecting blocks 311 and two second connecting blocks 312, the filter plate 313 of the star-shaped filter element can be replaced individually when damaged. Compared with the traditional method of replacing the entire star-shaped filter element when it is damaged, this method can effectively reduce wear and reduce maintenance costs. Compared to traditional one-piece star-shaped filter cartridges, this method uses the second connecting block 312 to replace the traditional one-piece inner corner connection. Since the second connecting block 312 does not have filtration and ventilation, the dust accumulation at the inner corner connection is significantly reduced. Furthermore, during cleaning, the dust adhesion can be reduced by moving the second connecting block 312 to drive the slide strip 314 to slide on the inner wall of the slide groove. The principle is that the adhered dust will shift due to the relative movement of the two second connecting blocks 312, thus reducing the difficulty of cleaning. This setting effectively avoids the problem of poor performance of backflushing cleaning when dust accumulates at the inner corner of the traditional filter cartridge, and prevents long-term dust accumulation from affecting subsequent use.

[0022] like Figures 1-9 As shown, a knocking component is provided on the side of the two adjacent second connecting blocks 312 away from the center of the star-shaped filter element; The striking assembly includes a striking strip 315 fixedly connected to the surface of one of the second connecting blocks 312, and guide blocks 316 evenly distributed on the surface of the other second connecting block 312. The cross-sectional shape of the guide blocks 316 is an isosceles trapezoid. During the relative movement of the two second connecting blocks 312, the striking bar 315 will be lifted by the inclined surface of the guide block 316, and after separation, it will reset to achieve the purpose of striking the second connecting block 312. The cleaning effect is improved by using the striking vibration, and the dust can also be scraped off during the movement. Specifically, the striking bar 315 is made of metal springs.

[0023] like Figures 1-9 As shown, the backflushing assembly 32 includes a fixing ring 329 fixedly connected to the top of the star-shaped filter element. The top of the fixing ring 329 has a rotating groove 3210. A sliding plate 3211 is slidably connected to the inner wall of the fixing ring 329. A trigger rod 3213 is provided on the surface of the sliding plate 3211. One end of the trigger rod 3213 passes through the interior of the rotating groove 3210, and the other end of the trigger rod 3213 passes through the fixing ring 329 and is fixedly connected to the top of the second connecting block 312, which is fixedly connected to the striking strip 315.

[0024] A spring 3212 is fixedly connected to the bottom of the skateboard 3211, and the lower end of the spring 3212 is fixedly connected to the inner wall of the fixing ring 329.

[0025] The top of the fixed ring 329 is rotatably connected to the rotating ring 325, and the bottom of the rotating ring 325 is fixedly connected to the rotating ring 327 located inside the rotating groove 3210. The surface of the rotating ring 327 is provided with evenly distributed trigger cavities 328. One side of the inner wall of the trigger cavity 328 is inclined. The upper end of the trigger rod 3213 is in contact with the surface of the rotating ring 327.

[0026] The top of the rotating ring 325 is provided with a mounting shell 323. The bottom of the mounting shell 323 is fixedly connected to the top of the fixed ring 329. The rotating ring 325 is located inside the mounting shell 323. A connecting ring is fixedly connected to the inner side of the mounting shell 323 and is arranged on the same axis as the center hole of the rotating ring 325. The surface of the connecting ring is provided with an exhaust hole 322. A one-way valve is provided on the inner wall of the exhaust hole 322. A backflush pipe 321 is provided on the surface of the mounting shell 323.

[0027] A filter ring 326 is fixedly connected to the top of the rotating ring 325. The inner side of the filter ring 326 is in contact with the outer side of the connecting ring. Evenly distributed drive blades 324 are fixedly connected to the top of the rotating ring 325.

[0028] During the backwash cleaning process, high-pressure backwash gas is injected into the backwash pipe 321. The gas is guided by the backwash pipe 321 and injected into the mounting housing 323. During this process, the drive blade 324 drives the rotating ring 325 to rotate until it is discharged through the exhaust port 322. The one-way valve prevents the filtered gas from being discharged through this port. The backwash gas through the exhaust port 322 can be guided through the inner hole of the connecting ring and through the fixing ring 329 to be injected into the interior of the filter element assembly 31, realizing backwash cleaning from the inside out. The cleaned dust can be discharged separately through the dust discharge pipe 102. During the rotation of the drive blade 324 and the rotating ring 325, the rotating ring 327 can be rotated synchronously. The trigger rod 3213 is triggered by the height difference between the trigger cavity 328 and the bottom surface of the rotating ring 327. Under the action of the spring 3212, the trigger rod 3213 located in the trigger cavity 328 can stick tightly to the inner wall of the trigger cavity 328 until it slides out along the inclined surface of the trigger cavity 328. During this process, the trigger rod 3213 and the slide plate 3211 can be squeezed to move down synchronously and compress the spring 3212. At this time, the trigger rod 3213 can squeeze the second connecting block 312 connected to it to move down, and then cooperate with the striking bar 315 and the guide block 316 to clean the inner corner, which greatly improves the effect of backwash cleaning.

[0029] Working principle: The gas requiring dust removal is introduced into the cylinder 1 through the inlet pipe 101 and flows from the outside to the inside of the filter element assembly 31, thus removing dust from the gas. The dust-removed gas is discharged through the exhaust pipe 201. During the backwash cleaning process, high-pressure backwash gas is injected into the backwash pipe 321. The gas is guided by the backwash pipe 321 and injected into the mounting housing 323. During this process, the drive blade 324 drives the rotating ring 325 to rotate until it is discharged through the exhaust port 322. The one-way valve prevents the filtered gas from being discharged through this port. The backwash gas through the exhaust port 322 is guided through the inner hole of the connecting ring and through the fixing ring 329 to be injected into the interior of the filter element assembly 31, realizing backwash cleaning from the inside out. The cleaned dust can be discharged separately through the dust exhaust pipe 102. At the same time, as the drive blade 324 drives the rotating ring 325 to rotate, it can synchronously drive the rotating ring 327 to rotate. The height difference between the trigger cavity 328 and the bottom surface of the rotating ring 327 is used to trigger the trigger rod 3213. Under the action of the spring 3212, the trigger rod 3213 located in the trigger cavity 328 can stick tightly to the inner wall of the trigger cavity 328 until it slides out along the inclined surface of the trigger cavity 328. During this process, the trigger rod 3213 and the slide plate 3211 can be squeezed to move down synchronously and compress the spring 3212. At this time, the trigger rod 3213 can squeeze the second connecting block 312 connected to it to move down, and then cooperate with the striking bar 315 and the guide block 316 to achieve cleaning of the inner corner, which greatly improves the effect of backwash cleaning.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. An industrial dust collector filter cartridge, comprising a cartridge body (1), characterized in that, One side of the cylinder (1) is connected to an air inlet pipe (101), and the other side of the cylinder (1) is connected to a dust exhaust pipe (102). A filter module (3) is installed inside the cylinder (1). A detachable cover (2) is installed on the top of the cylinder (1). An exhaust pipe (201) is installed on the top of the cover (2). The lower end of the exhaust pipe (201) passes through the cover (2) and is connected to the cylinder (1). The filter module (3) consists of a filter element assembly (31), a backwash assembly (32) and a mounting platform (33). The filter element assembly (31) is located on the top of the mounting platform (33), and the backwash assembly (32) is located on the top of the filter element assembly (31). The inner bottom wall of the cylinder (1) is fixedly connected to a limiting seat (103) that cooperates with the mounting platform (33) to limit the filter module (3). The outer shape of the mounting platform (33) matches the inner shape of the limiting seat (103), and the outer side of the limiting seat (103) is set as a cone.

2. The industrial dust collector filter cartridge according to claim 1, characterized in that, The filter element assembly (31) includes several sets of first connecting blocks (311) and second connecting blocks (312). A filter plate (313) is fixedly connected between the first connecting blocks (311) and the second connecting blocks (312) in the same set. Several sets of first connecting blocks (311), second connecting blocks (312) and filter plates (313) are spliced ​​together to form a star-shaped filter element.

3. An industrial dust collector filter cartridge according to claim 2, characterized in that, A docking assembly is provided on the opposite sides of two adjacent first connecting blocks (311) and two adjacent second connecting blocks (312). A sliding groove is provided on the surface of one of the first connecting blocks (311) and the second connecting block (312), and a sliding strip (314) matching the sliding groove is fixedly connected to the surface of the other first connecting block (311) and the second connecting block (312).

4. An industrial dust collector filter cartridge according to claim 3, characterized in that, A striking component is provided on the side of the two adjacent second connecting blocks (312) away from the center of the star-shaped filter element; The striking assembly includes a striking strip (315) fixedly connected to the surface of one of the second connecting blocks (312), and a guide block (316) uniformly distributed on the surface of the other second connecting block (312), the guide block (316) having an isosceles trapezoidal cross-sectional shape.

5. An industrial dust collector filter cartridge according to claim 4, characterized in that, The backflushing assembly (32) includes a fixing ring (329) fixedly connected to the top of the star-shaped filter element. The top of the fixing ring (329) is provided with a rotating groove (3210). A sliding plate (3211) is slidably connected to the inner wall of the fixing ring (329). A trigger rod (3213) is provided on the surface of the sliding plate (3211). One end of the trigger rod (3213) passes through the interior of the rotating groove (3210), and the other end of the trigger rod (3213) passes through the fixing ring (329) and is fixedly connected to the top of the second connecting block (312) which is fixedly connected with a striking strip (315).

6. An industrial dust collector filter cartridge according to claim 5, characterized in that, A spring (3212) is fixedly connected to the bottom of the slide plate (3211), and the lower end of the spring (3212) is fixedly connected to the inner wall of the fixing ring (329).

7. An industrial dust collector filter cartridge according to claim 6, characterized in that, The top of the fixed ring (329) is rotatably connected to a rotating ring (325), and the bottom of the rotating ring (325) is fixedly connected to a rotating ring (327) located inside the rotating groove (3210). The surface of the rotating ring (327) is provided with uniformly distributed trigger cavities (328). One side of the inner wall of the trigger cavity (328) is inclined. The upper end of the trigger rod (3213) is in contact with the surface of the rotating ring (327).

8. An industrial dust collector filter cartridge according to claim 7, characterized in that, The top of the rotating ring (325) is provided with a mounting shell (323), the bottom of the mounting shell (323) is fixedly connected to the top of the fixed ring (329), the rotating ring (325) is located inside the mounting shell (323), a connecting ring is fixedly connected to the inner side of the mounting shell (323) and is coaxially arranged with the center hole of the rotating ring (325), an exhaust hole (322) is opened on the surface of the connecting ring, a one-way valve is provided on the inner wall of the exhaust hole (322), and a backflush pipe (321) is provided on the surface of the mounting shell (323).

9. An industrial dust collector filter cartridge according to claim 8, characterized in that, A filter ring (326) is fixedly connected to the top of the rotating ring (325), the inner side of the filter ring (326) is in contact with the outer side of the connecting ring, and uniformly distributed drive blades (324) are fixedly connected to the top of the rotating ring (325).

Images