A sewage treatment filter material cleaning mechanism and cleaning method

Abstract

The invention discloses a sewage treatment filter material cleaning mechanism and a cleaning method, which relate to the field of cleaning equipment, including a cleaning frame, a splicing assembly for loading a filter element is arranged between two groups of side plates, and leakage holes with different apertures are arranged on the two groups of assembly plates, a driving motor is connected to the assembly plate, an inner cylinder cleaning part and an outer cylinder cleaning part are sleeved on the output shaft of the driving motor, universal joints are arranged on the outside of the two groups of assembly plates, the universal joints are connected to the side plates, a movable adjustment part is connected to the universal joints, and the movable adjustment part is installed on the side plates; a spraying assembly for spraying and cleaning the filter element is installed on the side plates, and the sewage treatment filter material cleaning mechanism is conducive to physically cleaning the sundries of the filter element under the simultaneous action of the outer cylinder cleaning part and the inner cylinder cleaning part, and is conducive to avoiding the adhesion of dirt to the filter element during cleaning with the decontaminant sprayed by the spraying assembly, and at the same time, by adjusting the inclination of the filter element, it is conducive to timely discharge of the cleaned dirt to avoid the adhesion of dirt.

Description

Technical Field

[0001] The invention relates to the technical field of cleaning equipment, and in particular to a sewage treatment filter material cleaning mechanism and a cleaning method. Background Art

[0002] With the gradual improvement of environmental awareness, the equipment and treatment methods for sewage treatment are gradually optimized. When treating sewage, sewage is introduced from the inlet of the sewage treatment equipment, and the sewage is purified and filtered by the sewage treatment equipment before being discharged. The existing sewage treatment equipment is equipped with a filter element, which is cylindrical. When sewage passes through the filter element of the sewage treatment device, impurities in the sewage are adsorbed on the filter element. In order to avoid clogging of the filter element, the filter element needs to be cleaned.

[0003] When cleaning the sewage treatment device, the sewage treatment device is first rinsed with water to facilitate the preliminary cleaning of the sewage treatment device. The filter element inside the sewage treatment device is neutralized by chemical agents to facilitate cleaning of the filter element, and is also cleaned by vibration and physical brush stick cleaning. The use of chemical agents for neutralization reaction can easily cause damage to the filter element. Since domestic sewage or production and processing water is mixed with oil and dirt, when a physical brush roller is used for cleaning, since the filter element of the sewage treatment equipment has a certain size, the filter element is placed vertically when cleaning the filter element. After cleaning with a cleaning brush roller, sewage mixed with oil and dirt are easily hung on the filter element, and the dirt on the outside of the filter element is not easy to clean. When the filter element is placed horizontally for cleaning, the cleaned sewage and the like remain in the filter element and are not easy to discharge. The oil and dirt adhering to the filter element are not easy to clean. For this reason, we propose a sewage treatment filter material cleaning mechanism and a cleaning method. Summary of the invention

[0004] The object of the present invention is to provide a sewage treatment filter material cleaning mechanism and a cleaning method to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sewage treatment filter material cleaning mechanism and a cleaning method, comprising a cleaning frame, a receiving frame is provided at the bottom of the cleaning frame, and the two sides of the cleaning frame are side panels, and a splicing component for loading a filter element is provided between the two groups of side panels; the splicing component comprises two groups of assembly plates, and the two groups of assembly plates are respectively provided with leakage holes of different aperture sizes, one of the assembly plates is connected to a driving motor, and the output shaft of the driving motor is sleeved with an inner cylinder cleaning part for cleaning the inside of the filter element, and an outer cylinder cleaning part for cleaning the outside of the filter element, and universal joints are provided on the outside of the two groups of assembly plates, one of the universal joints is connected to the side plate, and a movable adjustment part is connected to the other universal joint, and the movable adjustment part is installed on the side plate; a spraying component for spraying and cleaning the filter element is installed on the side plate.

[0006] Preferably, the splicing component also includes an extension ring plate installed on the assembly plate, and the extension ring plate is provided with a plurality of sliding groove groups, and the sliding groove groups are two sections of symmetrical arc grooves; a cavity is provided inside the assembly plate for installing the drive motor, and a cover plate is installed at the cavity mouth, and a plurality of arc grooves corresponding to the sliding groove groups are started on the cavity wall.

[0007] Preferably, the outer cylinder cleaning part includes a toothed disc installed inside the cavity, the toothed disc is sleeved on the output shaft of the driving motor, the assembly plate is connected to a bracket, and the bracket is rotatably connected to a bidirectional threaded shaft, the bidirectional threaded shaft is connected to a gear meshing with the toothed disc, and the lower part of the gear passes through an arc groove to mesh with the toothed disc; the bidirectional threaded shaft is sleeved with a threaded shaft sleeve, and both ends of the threaded shaft sleeve are respectively connected to toggle rods, and the toggle rods pass through the sliding groove group.

[0008] Preferably, one end of the toggle rod is connected to a plug sleeve, and a scraper is connected between two groups of adjacent toggle rods.

[0009] Preferably, the inner cylinder cleaning member comprises a fixed sleeve sleeved on the output shaft of the driving motor, and a plurality of curved brush plates are connected to the fixed sleeve, and a plurality of groups of through holes are distributed on the curved brush plates.

[0010] Preferably, the movable adjustment part includes a motor mounting sleeve connected to the outside of the driving motor, a strip groove is opened on the side panel, and powerful electromagnets are installed at both ends of the strip groove, an adjustment column is connected between the two powerful electromagnets, the motor mounting sleeve is connected to the universal joint, one end of the universal joint is connected to a metal slider, and the metal slider is sleeved on the adjustment column, and return springs are installed on the upper and lower parts of the metal slider.

[0011] Preferably, both sides of the metal sliding block are connected to limiting guide rods, and both ends of the limiting guide rods are connected to the upper and lower inner walls of the strip groove.

[0012] Preferably, the spray assembly includes automatic nozzles installed on the side wall, the automatic nozzles are symmetrically distributed up and down, and a pipe is connected between two automatic nozzles, one of the pipes is connected to a decontamination box, and the other pipe is connected to an air pressure pump body.

[0013] A cleaning method used by a sewage treatment filter material cleaning mechanism:

[0014] a. Assemble the filter element, assemble the filter element through the splicing components, and install the two ends of the splicing components with the side panels;

[0015] b. Scrape cleaning: the driving motor drives the inner cylinder cleaning part to clean the inside of the filter element, and the outer cylinder cleaning part to clean the outside of the filter element;

[0016] c. Decontamination spraying: start the spraying assembly to spray the decontamination agent on the filter element;

[0017] d. Swing cleaning: Move the adjustment piece to drive the assembled filter element to swing along the universal joint and clean at the same time;

[0018] e. Air-dry and discharge, the air pump body blows gas from the large-diameter leakage hole to air dry.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention assembles the filter element to be cleaned by setting a splicing assembly, assembles universal joints at both ends of the splicing assembly, and moves and adjusts one of the universal joints by a moving adjustment piece. Under the simultaneous action of the outer cylinder cleaning piece and the inner cylinder cleaning piece, it is beneficial to physically clean the debris of the filter element. The decontaminant sprayed by the spraying assembly is beneficial to avoid the dirt from adhering to the filter element during cleaning. At the same time, by adjusting the tilt of the filter element, it is beneficial to discharge the cleaned dirt in time to avoid the dirt from adhering.

[0021] The leak holes of the assembly plate designed in the present invention have different sizes, so that air flow difference is formed inside the assembly plate, which is beneficial to the cleaning of dirt. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the filter element when it is assembled as a whole in the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the cleaning frame connected to the spraying assembly of the present invention;

[0024] Figure 3 for Figure 1 Schematic diagram of the structure after the filter element is removed;

[0025] Figure 4 It is a structural schematic diagram of the splicing assembly of the present invention;

[0026] Figure 5 for Figure 4 Schematic diagram of the local explosion structure;

[0027] Figure 6 It is a schematic diagram of the structure of the splicing assembly of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the outer cylinder cleaning part of the present invention;

[0029] Figure 8 for Figure 7 A schematic diagram of the enlarged structure of the area at center A;

[0030] Fig. 9 for Figure 7 Schematic diagram of the enlarged structure of area B in the middle.

[0031] In the figure: 1-cleaning frame; 2-joining assembly; 3-inner cylinder cleaning piece; 4-outer cylinder cleaning piece; 5-universal joint; 6-movable adjustment piece; 7-spraying assembly; 11-receiving frame; 12-side plate; 21-assembly plate; 22-leak hole; 23-driving motor; 24-extension ring plate; 25-sliding groove group; 26-cavity; 27-cover plate; 28-arc groove; 31-fixed sleeve; 32-curved brush plate; 3 3-through hole; 41-toothed disc; 42-bracket; 43-bidirectional threaded shaft; 44-gear; 45-threaded sleeve; 46-toggle rod; 47-plug-in sleeve; 48-scraper; 61-strip groove; 62-powerful electromagnet; 63-adjusting column; 64-metal slider; 65-reset spring; 66-limiting guide rod; 71-automatic nozzle; 72-pipeline; 73-decontamination box; 74-air pressure pump body. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 9 The present invention provides a technical solution: a sewage treatment filter material cleaning mechanism, which is used to clean sewage treatment equipment, clean the filter element in the sewage treatment equipment, and preliminarily clean the outside of the sewage treatment equipment by flushing with a high-pressure water gun.

[0034] For the treatment of the filter element inside the sewage treatment equipment, the filter element needs to be removed from the sewage treatment equipment after preliminary cleaning. The device used for cleaning includes a cleaning rack 1. For details, please refer to the attached Figure 1-Figure 3 As shown in the figure, the bottom of the cleaning rack 1 is a plate fixed by a dark rotation, which is fixed to the ground by means of bolts and screws. A receiving frame 11 is provided at the bottom of the cleaning rack 1. The receiving frame 11 is used to receive the cleaned sewage. A valve capable of draining sewage is provided at the bottom of the receiving frame 11 to discharge the sewage received in the receiving frame 11. The two sides of the cleaning rack 1 are side panels 12, one of which is provided with a strip groove 61, and a splicing assembly 2 for loading a filter element is provided between the two sets of side panels 12;

[0035] For details on assembling the filter element, refer to the attached Figure 4-Figure 6As shown, the splicing component 2 includes two groups of assembly plates 21, and the two groups of assembly plates 21 are provided with leakage holes 22 of different aperture sizes, that is, the leakage hole 22 on one of the assembly plates 21 has a large aperture, and the leakage hole 22 on the other assembly plate 21 has a small aperture. By designing the aperture difference, the wind entering the hole and the wind discharged from the hole are of different sizes, thereby achieving a wind speed difference and air pressure difference, which is conducive to the air entering the assembled filter element and cleaning the inside of the filter element through the air. The splicing component 2 also includes an extension ring plate 24 installed on the assembly plate 21, and the extension ring plate 24 is provided with a plurality of sliding groove groups 25, and the sliding groove group 25 is two sections of symmetrical arc grooves. A cavity 26 is provided inside the assembly plate 21 on which the drive motor 23 is installed, and a cover plate 27 is installed at the mouth of the cavity 26, and a plurality of arc grooves 28 corresponding to the sliding groove group 25 are formed on the wall of the cavity 26.

[0036] A driving motor 23 is connected to one of the assembly plates 21, and an inner cylinder cleaning part 3 for cleaning the inside of the filter element and an outer cylinder cleaning part 4 for cleaning the outside of the filter element are sleeved on the output shaft of the driving motor 23. Universal joints 5 are provided on the outside of the two groups of assembly plates 21, one of which is connected to the side plate 12, and a movable adjustment part 6 is connected to the other universal joint 5, and the movable adjustment part 6 is installed on the side plate 12; a spray assembly 7 for spraying and cleaning the filter element is installed on the side plate 12.

[0037] During cleaning, the assembled filter element is swung along one of the universal joints 5 by moving the adjustment part 6, and then the assembled filter element is tilted and swung along one end during cleaning. On the one hand, it is beneficial to the cleaning of the outside and inside of the filter element, and on the other hand, it is beneficial to the discharge of the dirt after cleaning, thereby avoiding the dirt after cleaning from adhering to the filter element.

[0038] The outer cylinder cleaning member 4 includes a toothed disc 41 installed inside the cavity 26, and the toothed disc 41 is sleeved on the output shaft of the driving motor 23. The assembly plate 21 is connected to a bracket 42, and a bidirectional threaded shaft 43 is rotatably connected to the bracket 42. The bidirectional threaded shaft 43 is connected to a gear 44 meshing with the toothed disc 41, and the lower part of the gear 44 passes through the arc groove 28 and meshes with the toothed disc 41;

[0039] A threaded sleeve 45 is sleeved on the bidirectional threaded shaft 43 , and two ends of the threaded sleeve 45 are respectively connected to toggle rods 46 , and the toggle rods 46 pass through the sliding slot set 25 .

[0040] One end of the toggle rod 46 is connected to a plug-in sleeve 47, and a scraper 48 is connected between two groups of adjacent toggle rods 46. The plug-in sleeve 47 on the toggle rod 46 is inserted into the sliding groove group 25 for fixation, and then the toggle rod 46 is distributed outside the filter element, and then the other end of the toggle rod 46 is plugged into the sliding groove group 25 on the extension ring plate 24, so that the external toggle rod 46 is just distributed outside the filter element. Since the toggle rods 46 are assembled in groups of two, when the toggle rods 46 are fixed and installed, the scraper 48 installed on the toggle rod 46 is also installed synchronously. The inner cylinder cleaning part 3 includes a fixed sleeve 31 sleeved on the output shaft of the drive motor 23, and a plurality of curved brush plates 32 are connected to the fixed sleeve 31. The curved brush plate 32 has soft bristles implanted on its outer surface, which effectively avoids wear on the inside of the filter element during the brushing process, and a plurality of through holes 33 are distributed on the curved brush plate.

[0041] The movable adjustment member 6 includes a motor fixing sleeve 31 connected to the outside of the driving motor 23, a strip groove 61 is opened on the side plate 12, and powerful electromagnets 62 are installed at both ends of the strip groove 61, and an adjustment column 63 is connected between the two powerful electromagnets 62, and the power on and off of the powerful electromagnet 62 is set, and then the metal slider 64 is adsorbed by the magnetic attraction of the powerful electromagnet 62, so that the metal slider 64 drives the assembled filter element to swing up and down, so that the filter element is inclined, which is beneficial to the cleaning of the filter element on the one hand, and the discharge of dirt after cleaning on the other hand. The motor fixing sleeve is connected to the universal joint 5, and one end of the universal joint is connected to the metal slider 64, and the metal slider 64 is sleeved on the adjustment column 63, and the upper and lower parts of the metal slider 64 are installed with reset springs 65.

[0042] Both sides of the metal sliding block 64 are connected to limiting guide rods 66 , and both ends of the limiting guide rods 66 are connected to the upper and lower inner walls of the strip groove 61 .

[0043] The spray assembly 7 includes an automatic nozzle 71 installed on the side wall. The automatic nozzle 71 is symmetrically distributed up and down, and a pipe 72 is connected between two automatic nozzles 71. One of the pipes 72 is connected to a decontamination box 73, and the other pipe 72 is connected to an air pressure pump body 74.

[0044] When using the device in this scheme, first align the mounting hole on the removed filter element with the assembly plate 21. The assembly plate 21 is designed with a plug-in column aligned with the mounting hole, so that one end of the filter element is loaded on the assembly plate 21, and then the output shaft of the drive motor 23 is inserted into the interior of the filter element. When the output shaft is inserted, the curved brush plate 32 fixed on the output shaft is also inserted into the interior of the filter element. The curved brush plate 32 has soft bristles implanted on its outer surface, which effectively avoids wear on the inside of the filter element during the brushing process. After the curved brush plate 32 is inserted into the interior of the filter element, the outer cylinder cleaning piece 4 needs to be assembled on the outside of the filter element. At this time, the plug-in sleeve 47 on the toggle rod 46 is inserted into the sliding groove group 25 for fixing, and then the toggle rod 46 is distributed outside the filter element, and then the other end of the toggle rod 46 is plugged into the sliding groove group 25 on the extension ring plate 24, so that the external toggle rod 46 is just distributed outside the filter element. Since the toggle rods 46 are assembled in groups of two, when the toggle rods 46 are fixed and installed, the scraper 48 installed on the toggle rod 46 is also installed synchronously. The curved brush plate 32, the toggle rod 46 and the scraper 48 in this solution are all made of soft materials, which effectively avoids wear on the filter element;

[0045] Then, the motor fixing sleeve 31 is fixed to the outside of the driving motor 23, and the universal joint 5 is fixed to the outside of the metal slider 64. At this time, by starting the driving motor 23, under the power of the driving motor 23, the curved brush plate 32 begins to brush and clean the inside of the filter element, and at the same time, the toothed disc 41 starts to drive the gear 44 to rotate, thereby rotating the bidirectional threaded shaft 43, and the threaded sleeve 45 installed on the bidirectional threaded shaft 43 reciprocates for adjustment. The toggle rod 46 is made of soft elastic material. When the threaded sleeve 45 is pushed forward, the toggle rod 46 can slide upward along the sliding groove group 25, so that the toggle rod 46 is toggled upward from the bottom of the spacer layer of the filter element, so as to remove the adhesion on the outer surface of the filter element. In addition, it also drives the scraper 48 to separate the debris after scraping, which is beneficial to the cleaning of the outer surface of the filter element. When performing physical cleaning, the decontamination box 73 is opened simultaneously, so that the decontamination agent inside the decontamination box 73 is sprayed out along the automatic nozzle 71, which is convenient for decontamination of the filter element. At the same time, the leakage holes 22 with different apertures are designed, which is beneficial to the formation of air difference inside the filter element, which is convenient for decontamination. At the same time, by setting the power on and off of the strong electromagnet 62, the metal slider 64 is adsorbed by the magnetic attraction force of the strong electromagnet 62, so that the metal slider 64 drives the assembled filter element to swing up and down, making the filter element tilted, which is beneficial to the cleaning of the filter element on the one hand, and on the other hand, it is beneficial to the discharge of dirt after cleaning.

[0046] A cleaning method used in a sewage treatment filter material cleaning mechanism, a. assembling a filter element, assembling the filter element through a splicing assembly 2, and installing both ends of the splicing assembly 2 with a side plate 12;

[0047] b. Scrape cleaning: the driving motor 23 acts to drive the inner cylinder cleaning member 3 to clean the inside of the filter element, and the outer cylinder cleaning member 4 to clean the outside of the filter element;

[0048] c. Decontamination spraying: start the spraying assembly 7 to spray the decontamination agent on the filter element;

[0049] d. Swing cleaning: the moving adjustment part 6 drives the assembled filter element to swing along the universal joint 5 and clean at the same time;

[0050] e. Air-dry and discharge: the air pressure pump body 74 blows gas from the large-diameter leakage hole 22 to dry the mixture.

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sewage treatment filter material cleaning mechanism, comprising a cleaning frame (1), characterized in that: The bottom of the cleaning rack (1) is provided with a receiving frame (11), and the two sides of the cleaning rack (1) are provided with side panels (12), and a splicing assembly (2) for loading a filter element is provided between the two sets of side panels (12); The splicing assembly (2) comprises two groups of assembly plates (21), and the two groups of assembly plates (21) are respectively provided with leakage holes (22) of different aperture sizes, one of the assembly plates (21) is connected to a driving motor (23), an inner cylinder cleaning member (3) for cleaning the inside of the filter element, and an outer cylinder cleaning member (4) for cleaning the outside of the filter element are sleeved on the output shaft of the driving motor (23), and universal joints (5) are provided on the outside of the two groups of assembly plates (21), one of the universal joints is connected to the side plate (12), and the other universal joint (5) is connected to a movable adjustment member (6), and the movable adjustment member (6) is mounted on the side plate (12); The side plate (12) is provided with a spraying assembly (7) for spraying and cleaning the filter element; The splicing assembly (2) further comprises an extension ring plate (24) mounted on the assembly plate (21), and a plurality of sliding groove groups (25) are provided on the extension ring plate (24), wherein the sliding groove groups (25) are two sections of symmetrical arc grooves; An assembly plate (21) for mounting a driving motor (23) is provided with a cavity (26) inside, and a cover plate (27) is installed at the mouth of the cavity (26), and a plurality of groups of arc grooves (28) corresponding to the sliding groove group (25) are formed on the wall of the cavity (26); The outer cylinder cleaning member (4) comprises a toothed disc (41) mounted inside the cavity (26), the toothed disc (41) being sleeved on the output shaft of the driving motor (23), the assembly plate (21) being connected to a bracket (42), and the bracket (42) being rotatably connected to a bidirectional threaded shaft (43), the bidirectional threaded shaft (43) being connected to a gear (44) meshing with the toothed disc (41), the lower portion of the gear (44) passing through the arc groove (28) being meshed with the toothed disc (41); The bidirectional threaded shaft (43) is sleeved with a threaded shaft sleeve (45), and both ends of the threaded shaft sleeve (45) are respectively connected to toggle rods (46), and the toggle rods (46) pass through the sliding groove group (25); One end of the toggle rod (46) is connected to an insertion sleeve (47), and a scraper (48) is connected between two groups of adjacent toggle rods (46).

2. A sewage treatment filter material cleaning mechanism according to claim 1, characterized in that: The inner cylinder cleaning member (3) comprises a fixed sleeve (31) sleeved on the output shaft of the driving motor (23), and a plurality of curved brush plates (32) are connected to the fixed sleeve (31), and a plurality of groups of through holes (33) are distributed on the curved brush plates.

3. A sewage treatment filter material cleaning mechanism according to claim 1, characterized in that: The movable adjustment member (6) comprises a motor mounting sleeve connected to the outside of the driving motor (23); a strip groove (61) is provided on the side plate (12); powerful electromagnets (62) are installed at both ends of the strip groove (61); an adjustment column (63) is connected between the two powerful electromagnets (62); the motor mounting sleeve is connected to the universal joint (5); one end of the universal joint is connected to a metal slider (64); the metal slider (64) is sleeved on the adjustment column (63); and the upper and lower parts of the metal slider (64) are both installed with return springs (65).

4. A sewage treatment filter material cleaning mechanism according to claim 3, characterized in that: Both sides of the metal sliding block (64) are connected to limiting guide rods (66), and both ends of the limiting guide rods (66) are connected to the upper and lower inner walls of the strip groove (61).

5. A sewage treatment filter material cleaning mechanism according to claim 1, characterized in that: The spraying assembly (7) comprises an automatic spray head (71) mounted on a side wall, the automatic spray heads (71) being symmetrically distributed up and down, and a pipe (72) being connected between two automatic spray heads (71), one of the pipes (72) being connected to a decontamination box (73), and the other pipe (72) being connected to an air pressure pump body (74).

6. A cleaning method, using a sewage treatment filter material cleaning mechanism according to any one of claims 1 or 5, characterized in that: a. Assembling the filter element, assembling the filter element through the splicing assembly (2), and installing both ends of the splicing assembly (2) with the side plate (12); b. Scraping and cleaning: the driving motor (23) acts to drive the inner cylinder cleaning member (3) to clean the inside of the filter element, and the outer cylinder cleaning member (4) to clean the outside of the filter element; c. Decontamination spraying: starting the spraying assembly (7) to spray the decontamination agent on the filter element; d. Swing cleaning: Move the adjustment piece (6) to drive the assembled filter element to swing along the universal joint (5) while cleaning. e. Air drying and discharge: the air pressure pump body (74) blows gas from the large-diameter leakage hole (22) to dry the gas.

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