Centrifugal bag filter

Abstract

The invention relates to the technical field of filters, and discloses a centrifugal bag filter which comprises a centrifugal water tank, a filtering tank and a connecting pipe, the connecting pipe is connected between the top of the centrifugal water tank and the upper portion of the filtering tank, the top of the filtering tank is of an opening structure, and a tank cover is installed at the top of the filtering tank through bolts; a tank cap is fixedly mounted at the top of the tank cover, a forward and reverse rotation motor is mounted at the top of the tank cap, a filter bag capable of being folded, stretched and adjusted is mounted in the filter tank, a cleaning part capable of being stretched, lifted and adjusted is mounted in the filter bag, and the forward and reverse rotation motor is in transmission connection with the cleaning part; a tightening mechanism for clamping and fixing the filter bag is mounted in the filter tank; the centrifugal bag filter is provided with the cleaning structure and the extension adjusting structure, and meanwhile, accumulation of impurities is effectively avoided through cooperation of the cleaning structure and the extension adjusting structure, so that the filtering effectiveness and durability of the filter bag are ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of filters, in particular to a centrifugal bag filter. Background Art

[0002] Centrifugal bag filter is a high-efficiency filtration equipment that combines centrifugal separation and bag filtration technology. It is widely used in the removal of solid particles in liquids. Its working principle is to quickly separate solid particles in liquids through centrifugal force, and then further remove residual tiny particles through bag filters; the equipment usually consists of two parts: a centrifugal separator and a filter bag. The liquid first enters the centrifugal separator. Under the action of high-speed rotation, heavier solid particles are thrown to the inner wall of the equipment to form sediment, while lighter liquid flows out from the center. Then the liquid passes through the filter bag to further remove fine particles that are not captured by the centrifugal separator; centrifugal bag filters have the advantages of high filtration efficiency, easy operation, and low maintenance cost. They are suitable for many industries such as chemical, pharmaceutical, food and water treatment.

[0003] The existing centrifugal bag filter does not have a cleaning function when in use. When a large amount of impurities adhere to the inside of the filter bag and affect the filtration, the filter bag can only be replaced. At the same time, the filter bag cannot be adjusted during use, resulting in the entire inside of the filter bag starting to filter when it is first used, thereby shortening the filtration time. Therefore, the existing centrifugal bag filter is underused and has a low filtration efficiency. Improvements are now needed to address the above problems. Summary of the invention

[0004] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a centrifugal bag filter, comprising a centrifugal water tank, a filter tank and a connecting pipe, wherein the connecting pipe is connected between the top of the centrifugal water tank and the upper part of the filter tank, the top of the filter tank is an open structure, a tank cover is installed on the top of the filter tank by bolts, a tank cap is fixedly installed on the top of the tank cover, a forward and reverse motor is installed on the top of the tank cap, a foldable and stretchable filter bag is installed inside the filter tank, a retractable and lifting and adjusting cleaning component is installed inside the filter bag, the forward and reverse motor is drivingly connected to the cleaning component, and a tightening mechanism for clamping and fixing the filter bag is installed inside the filter tank.

[0005] Preferably, the upper part of the filter bag is a corrugated folding structure, a connecting ring is fixedly installed on the top of the filter bag, a clamping sealing ring A is fixedly installed on the bottom of the connecting ring, the connecting ring is installed at the upper part of the interior of the filter tank, an intubation is provided inside the filter bag, a clamping ring is fixedly installed on the top of the intubation, the clamping ring is installed at the upper part of the interior of the filter tank and is located on the top of the connecting ring, a clamping sealing ring B is fixedly installed on the bottom of the clamping ring, and four abutments for pressing and fixing the clamping ring are fixedly installed at equal distances in a ring at the bottom of the tank cover, so that the filter bag can be firmly installed and the filter bag can be conveniently disassembled and assembled.

[0006] Preferably, the tightening mechanism includes four arc-shaped clamping members, the four arc-shaped clamping members are located inside the filter tank, any two adjacent arc-shaped clamping members are staggered up and down, the four arc-shaped clamping members clamp and fix the filter bag through a tube, and a mounting block is fixedly installed in the middle of the outer arc surface of the four arc-shaped clamping members, one end of the mounting block is provided with a socket, the inside of the socket is movably plugged with a pin, and one end of the pin is fixedly connected to the inside of the filter tank.

[0007] Preferably, one end of the four mounting blocks are fixedly mounted with an internal thread block, the interiors of the four internal thread blocks are threadedly connected with threaded rods, the four threaded rods are rotatably connected to the filter tank, one end of the four threaded rods extends to the outside of the filter tank and is fixedly connected with a bevel gear, a rotating circle is mounted on the surface of the filter tank, and a bevel gear ring meshing with four bevel gears is fixedly mounted on the bottom of the rotating circle, so that the four arc-shaped clamping parts can be separated from the filter bag and the filter bag can be extended and moved downward to grow.

[0008] Preferably, a transverse block is fixedly mounted on the surface of the filter tank, an L-shaped block is fixedly mounted on the circumferential surface of the rotating circle, and an electric telescopic rod is rotatably mounted between one end of the transverse block and the top of the L-shaped block, thereby enabling effective adjustment and transmission.

[0009] Preferably, the cleaning component includes a hollow cover located inside the filter bag, and four arc-shaped scrapers are provided on the surface of the hollow cover, and any two adjacent arc-shaped scrapers are staggered up and down, and the inner arc surfaces of the four arc-shaped scrapers are fixedly installed with adjusting rods, and four through holes are opened on the surface of the hollow cover, and the four through holes are respectively aligned with four adjusting rods, and the four adjusting rods are movably inserted into the four through holes and extend to the inside of the hollow cover, and a linkage block is provided inside the hollow cover, and a linkage rod is rotatably connected between the bottom of the linkage block and one end of the four adjusting rods, so that the impurities inside the filter bag can be effectively cleaned.

[0010] Preferably, an outer square inner threaded tube is provided inside the filter bag, a motor is installed inside the lower part of the outer square inner threaded tube, the output end of the motor is fixedly connected to a threaded rod extending to the inside of the hollow cover, and the threaded rod is threadedly connected to the linkage block, so that the four arc scrapers can be effectively adjusted to make the four arc scrapers contact with the inside of the filter bag.

[0011] Preferably, a square inner groove is provided between the middle parts of the tank cover and the tank cap, an outer square inner threaded tube is movably inserted into the inside of the square inner groove, a threaded shaft threadedly connected to the outer square inner threaded tube is rotatably connected to the top of the square inner groove, the top of the threaded shaft is fixedly connected to the output end of the forward and reverse motor, a ring groove is provided at the bottom of the square inner groove, and three sealing water retaining rings in contact with the surface of the square inner threaded tube are installed inside the ring groove, thereby effectively driving the arc scraper to move downward for adjustment.

[0012] Preferably, a water inlet pipe is installed on the upper part of the surface of the centrifugal water tank, a sand settling tank is installed at the bottom of the centrifugal water tank, a discharge pipe is installed at one end of the sand settling tank, a valve A is installed in the middle of the discharge pipe, and a water outlet pipe is installed at the bottom of the filter tank, and a valve B is installed in the middle of the water outlet pipe, so that the liquid can be effectively transported and filtered.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) During operation, the centrifugal bag filter has a cleaning structure and a stretching adjustment structure by arranging a centrifugal water tank, a filter tank, a connecting pipe, a tank cover, a stopper, a tank cap, a forward and reverse motor, a filter bag, a cleaning component and a tightening mechanism. The cleaning structure can remove impurities from the inside of the filter bag to avoid clogging and affecting the filtering performance, and the stretching adjustment structure can stretch and adjust the filter bag to increase the length of the filter bag. At the same time, the cooperation of the cleaning structure and the stretching adjustment structure effectively avoids the accumulation of impurities and ensures the effectiveness and durability of the filter bag filtration;

[0015] The cleaning structure and the stretching adjustment structure are simple in design, convenient to use and operate, stable and reliable in adjustment and cleaning, and the performance thereof can meet the use requirements of efficient liquid filtration;

[0016] (2) By starting the electric telescopic rod to extend, the L-shaped block drives the rotating circle to rotate, the rotation of the rotating circle drives the bevel gear ring to rotate, the rotation of the bevel gear ring drives the four bevel gears to rotate, the rotation of the four bevel gears drives the four threaded rods to rotate, the rotation of the four threaded rods causes the four internal thread blocks to move on their surfaces and drives the four mounting blocks to move on the surfaces of the four pins, the movement of the four mounting blocks drives the four arc clamping parts away from the filter bag, so that the four arc clamping parts do not clamp and fix the filter bag, and then the filter bag is pushed to stretch and grow by the same length by moving the cleaning part downward; after the filter bag stretches and grows, the four arc clamping parts clamp and fix the filter bag again, so as to prevent the filter bag from automatically stretching and growing during the filtration process; and the equal length stretching and growth enables the filter bag to continue to effectively perform the filtering operation;

[0017] (3) The threaded rod is rotated by starting the motor. The rotation of the threaded rod causes the linkage block to move downward on its surface. The linkage block that moves downward pushes the four linkage rods to move and pushes the four adjustment rods to move out of the hollow cover. The four outward-moving adjustment rods push the four arc-shaped scrapers to move, and finally the four arc-shaped scrapers contact the inside of the filter bag. After that, the four arc-shaped scrapers that move downward scrape the impurities inside the filter bag, so that the impurities are concentrated in the lower part of the filter bag.

[0018] (4) By starting the forward and reverse motor to rotate the threaded shaft, the rotation of the threaded shaft will cause the outer square inner threaded tube to move downward inside the square inner groove. The downward movement of the outer square inner threaded tube will drive the hollow cover and four arc-shaped scrapers to move downward. During the downward movement, the four expanded arc-shaped scrapers will scrape off the impurities attached to the inside of the filter bag, causing the impurities to fall into the lower part of the filter bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0020] In the attached picture:

[0021] Figure 1 It is a schematic diagram of the structure of the centrifugal bag filter of the present invention;

[0022] Figure 2 For the present invention Figure 1 Schematic diagram of the local structure;

[0023] Figure 3 For the present invention Figure 1 A schematic cross-sectional structure diagram of;

[0024] Figure 4 For the present invention Figure 3The local structure of Figure 1 ;

[0025] Figure 5 For the present invention Figure 4 The local structure of Figure 1 ;

[0026] Figure 6 For the present invention Figure 4 The local structure of Figure 2 ;

[0027] Figure 7 It is a schematic diagram of the local structure of the present invention 4 Figure 3 ;

[0028] Figure 8 For the present invention Figure 3 The local structure of Figure 2 ;

[0029] Fig. 9 For the present invention Figure 8 Schematic diagram of the local structure;

[0030] In the figure: 1, centrifugal water tank; 2, filter tank; 3, connecting pipe; 4, tank cover; 401, stopper; 5, tank cap; 6, forward and reverse motor; 7, filter bag; 8, cleaning parts; 9, connecting ring; 10, clamping seal ring A; 11, insert tube; 12, clamping ring; 13, clamping seal ring B; 14, arc clamping piece; 15, mounting block; 16, socket; 17, latch; 18, internal thread block; 19, threaded rod; 20, bevel gear; 21, rotating circle; 22, bevel gear 1. ring; 23. horizontal block; 24. L-shaped block; 25. electric telescopic rod; 26. hollow cover; 27. arc scraper; 28. through hole; 29. ​​adjusting rod; 30. linkage block; 31. linkage rod; 32. outer square inner threaded pipe; 33. motor; 34. threaded rod; 35. square inner groove; 36. threaded shaft; 37. ring groove; 38. sealing water retaining ring; 39. water inlet pipe; 40. sand settling tank; 41. discharge pipe; 42. valve A; 43. water outlet pipe; 44. valve B. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] Embodiment 1, by Figures 1 to 9The present invention comprises a centrifugal water tank 1, a filter tank 2 and a connecting pipe 3, wherein the connecting pipe 3 is connected between the top of the centrifugal water tank 1 and the upper part of the filter tank 2, the top of the filter tank 2 is an open structure, a tank cover 4 is installed on the top of the filter tank 2 by bolts, a tank cap 5 is fixedly installed on the top of the tank cover 4, a forward and reverse motor 6 is installed on the top of the tank cap 5, a foldable and stretchable filter bag 7 is installed inside the filter tank 2, a retractable and lifting-adjustable cleaning component 8 is installed inside the filter bag 7, the forward and reverse motor 6 is transmission-connected with the cleaning component 8, and a tightening mechanism for clamping and fixing the filter bag 7 is installed inside the filter tank 2.

[0033] An inlet pipe 39 is installed on the upper part of the surface of the centrifugal water tank 1, a sand settling tank 40 is installed at the bottom of the centrifugal water tank 1, a discharge pipe 41 is installed at one end of the sand settling tank 40, a valve A42 is installed in the middle of the discharge pipe 41, and an outlet pipe 43 is installed at the bottom of the filter tank 2, and a valve B44 is installed in the middle of the outlet pipe 43, so that the liquid can be effectively transported and filtered.

[0034] The high-pressure liquid enters the centrifugal water tank 1 tangentially through the water inlet pipe 39 and rotates. The centrifugal force generated by the rotation pushes the silt and solid particles with higher density to flow down along the inner wall of the centrifugal water tank 1, and finally causes the sand and stones to enter the interior of the sand settling tank 40.

[0035] The initially filtered liquid then enters the interior of the filter tank 2 through the connecting pipe 3, and then enters the interior of the filter bag 7 through the insert pipe 11 for further filtration, so that fine impurities in the liquid are filtered and intercepted by the filter bag 7, and then the clean liquid is discharged through the outlet pipe 43.

[0036] The upper part of the filter bag 7 is a corrugated folding structure, a connecting ring 9 is fixedly installed on the top of the filter bag 7, a clamping sealing ring A10 is fixedly installed on the bottom of the connecting ring 9, the connecting ring 9 is installed at the upper part of the inside of the filter tank 2, an insert tube 11 is provided inside the filter bag 7, a clamping ring 12 is fixedly installed on the top of the insert tube 11, the clamping ring 12 is installed at the upper part of the inside of the filter tank 2 and is located on the top of the connecting ring 9, a clamping sealing ring B13 is fixedly installed on the bottom of the clamping ring 12, and four abutment blocks 401 for pressing and fixing the clamping ring 12 are fixedly installed at equal distances in an annular shape on the bottom of the tank cover 4, so that the filter bag 7 can be firmly installed and the filter bag 7 can be conveniently disassembled and assembled.

[0037] The filter bag 7 with a corrugated folded structure on the upper part is installed into the interior of the filter tank 2 through the connecting ring 9, and then the cannula 11 is inserted into the interior of the filter bag 7 through the clamping ring 12, and the clamping ring 12 is located on the top of the connecting ring 9, and then the tank cover 4 is installed on the top of the filter tank 2, and at the same time, the four blocks 401 squeeze the clamping ring 12 to deform the clamping seal ring A10 and the clamping seal ring B13 to play an effective sealing role.

[0038] The centrifugal bag filter has a cleaning structure and a stretching adjustment structure. The cleaning structure can remove impurities from the inside of the filter bag to avoid clogging that affects the filtering performance, while the stretching adjustment structure can stretch and adjust the filter bag to increase the length of the filter bag. At the same time, the cooperation of the cleaning structure and the stretching adjustment structure effectively avoids the accumulation of impurities and ensures the effectiveness and durability of the filter bag filtration. The cleaning structure and the stretching adjustment structure are simple in design, easy to use and operate, and stable and reliable in adjustment and cleaning. The performance they have can meet the use requirements of efficient liquid filtration.

[0039] Embodiment 2, on the basis of embodiment 1, the tightening mechanism includes four arc-shaped clamping members 14, the four arc-shaped clamping members 14 are located inside the filter tank 2, any two adjacent arc-shaped clamping members 14 are staggered up and down, the arc of the four arc-shaped clamping members 14 is one hundred and twenty degrees, the four arc-shaped clamping members 14 clamp and fix the filter bag 7 through the insert tube 11, the four arc-shaped clamping members 14 are matched with the insert tube 11, and a mounting block 15 is fixedly installed in the middle of the outer arc surface of the four arc-shaped clamping members 14, one end of the mounting block 15 is provided with a socket 16, the inside of the socket 16 is movably plugged with a pin 17, and one end of the pin 17 is fixedly connected to the inside of the filter tank 2.

[0040] One end of the four mounting blocks 15 is fixedly mounted with an internal thread block 18, the interior of the four internal thread blocks 18 is threadedly connected with a threaded rod 19, the four threaded rods 19 are rotatably connected to the filter tank 2, one end of the four threaded rods 19 extends to the outside of the filter tank 2 and is fixedly connected with a bevel gear 20, a rotating circle 21 is mounted on the surface of the filter tank 2, and a bevel gear ring 22 meshing with the four bevel gears 20 is fixedly mounted on the bottom of the rotating circle 21, so that the four arc-shaped clamping members 14 can be separated from the filter bag 7 and the filter bag 7 can be stretched downward and grow; a cross block 23 is fixedly mounted on the surface of the filter tank 2, an L-shaped block 24 is fixedly mounted on the circumferential surface of the rotating circle 21, and an electric telescopic rod 25 is rotatably mounted between one end of the cross block 23 and the top of the L-shaped block 24, so that effective adjustment and transmission can be performed.

[0041] By starting the electric telescopic rod 25 to extend, the L-shaped block 24 drives the rotating circle 21 to rotate, the rotation of the rotating circle 21 drives the bevel gear ring 22 to rotate, the rotation of the bevel gear ring 22 drives the four bevel gears 20 to rotate, the rotation of the four bevel gears 20 drives the four threaded rods 19 to rotate, the rotation of the four threaded rods 19 causes the four internal thread blocks 18 to move on their surfaces and drives the four mounting blocks 15 to move on the surfaces of the four latches 17, the movement of the four mounting blocks 15 drives the four arc clamping members 14 away from the filter bag 7, so that the four arc clamping members 14 do not clamp and fix the filter bag 7, and then the filter bag 7 is pushed to stretch and grow to the same length by moving the cleaning component 8 downward; after the filter bag 7 stretches and grows, the four arc clamping members 14 clamp and fix the filter bag 7 again, so as to prevent the filter bag 7 from automatically stretching and growing during the filtration process; and the stretching and growing of the same length enables the filter bag 7 to continue to effectively perform the filtering operation.

[0042] Embodiment 3, on the basis of embodiment 1, the cleaning component 8 includes a hollow cover 26 located inside the filter bag 7, and four arc-shaped scrapers 27 are provided on the surface of the hollow cover 26, and the curvature of the four arc-shaped scrapers 27 is one hundred and twenty degrees. Any two adjacent arc-shaped scrapers 27 are staggered up and down, and the inner arc surfaces of the four arc-shaped scrapers 27 are fixedly installed with adjustment rods 29, and four through holes 28 are opened on the surface of the hollow cover 26. The four through holes 28 are respectively aligned with the four adjustment rods 29, and the four adjustment rods 29 are movably inserted into the inside of the four through holes 28 and extend to the inside of the hollow cover 26, and a linkage block 30 is provided inside the hollow cover 26, and a linkage rod 31 is rotatably connected between the bottom of the linkage block 30 and one end of the four adjustment rods 29, so that the impurities inside the filter bag 7 can be effectively cleaned.

[0043] An outer square inner threaded tube 32 is provided inside the filter bag 7, and a motor 33 is installed inside the lower part of the outer square inner threaded tube 32. The output end of the motor 33 is fixedly connected to a threaded rod 34 extending to the inside of the hollow cover 26. The threaded rod 34 is threadedly connected to the linkage block 30, so that the four arc scrapers 27 can be effectively adjusted to make the four arc scrapers 27 contact with the inside of the filter bag 7.

[0044] By starting the motor 33 to rotate the threaded rod 34, the rotation of the threaded rod 34 will cause the linkage block 30 to move downward on its surface. The downwardly moved linkage block 30 will push the four linkage rods 31 to move and push the four adjustment rods 29 to move out from the inside of the hollow cover 26. The four outwardly moved adjustment rods 29 will push the four arc scrapers 27 to move, and finally the four arc scrapers 27 will contact the inside of the filter bag 7; then the downwardly moved four arc scrapers 27 will scrape off the impurities inside the filter bag 7, so that the impurities are concentrated in the lower part of the filter bag 7.

[0045] A square inner groove 35 is provided between the middle parts of the tank cover 4 and the tank cap 5, and the outer square internally threaded tube 32 is movably inserted into the inner part of the square inner groove 35. The top of the square inner groove 35 is rotatably connected with a threaded shaft 36 threadedly connected to the outer square internally threaded tube 32, and the top of the threaded shaft 36 is fixedly connected to the output end of the forward and reverse motor 6. A ring groove 37 is provided at the lower part of the square inner groove 35, and three sealing water retaining rings 38 in contact with the surface of the square internally threaded tube 32 are installed inside the ring groove 37, thereby effectively driving the arc scraper 27 to move downward for adjustment.

[0046] By starting the forward and reverse motor 6 to rotate the threaded shaft 36, the rotation of the threaded shaft 36 will cause the outer square internal threaded tube 32 to move downward inside the square inner groove 35. The downward movement of the outer square internal threaded tube 32 will drive the hollow cover 26 and the four arc-shaped scrapers 27 to move downward. During the downward movement, the four unfolded arc-shaped scrapers 27 will scrape off the impurities attached to the inside of the filter bag 7, so that the impurities will fall into the lower part of the inside of the filter bag 7.

[0047] 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.

[0048] 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 centrifugal bag filter, comprising a centrifugal water tank (1), a filter tank (2) and a connecting pipe (3), characterized in that: The connecting pipe (3) is connected between the top of the centrifugal water tank (1) and the upper part of the filter tank (2); the top of the filter tank (2) is an open structure; a tank cover (4) is installed on the top of the filter tank (2) by means of bolts; a tank cap (5) is fixedly installed on the top of the tank cover (4); a forward and reverse motor (6) is installed on the top of the tank cap (5); a foldable and extendable filter bag (7) is installed inside the filter tank (2); a retractable and liftable cleaning component (8) is installed inside the filter bag (7); the forward and reverse motor (6) is transmission-connected to the cleaning component (8); and a tightening mechanism for clamping and fixing the filter bag (7) is installed inside the filter tank (2).

2. A centrifugal bag filter according to claim 1, characterized in that: The upper part of the filter bag (7) is a corrugated folding structure. A connecting ring (9) is fixedly installed on the top of the filter bag (7). A clamping seal ring A (10) is fixedly installed on the bottom of the connecting ring (9). The connecting ring (9) is installed at the upper part of the inside of the filter tank (2). An insertion tube (11) is provided inside the filter bag (7). A clamping ring (12) is fixedly installed on the top of the insertion tube (11). The clamping ring (12) is installed at the upper part of the inside of the filter tank (2) and is located on the top of the connecting ring (9). A clamping seal ring B (13) is fixedly installed on the bottom of the clamping ring (12). Four abutment blocks (401) for pressing and fixing the clamping ring (12) are fixedly installed at equal distances in an annular shape at the bottom of the tank cover (4).

3. A centrifugal bag filter according to claim 2, characterized in that: The tightening mechanism comprises four arc-shaped clamping members (14), the four arc-shaped clamping members (14) are located inside the filter tank (2), any two adjacent arc-shaped clamping members (14) are arranged in an up-down staggered manner, the four arc-shaped clamping members (14) clamp and fix the filter bag (7) through the insertion tube (11), and a mounting block (15) is fixedly mounted in the middle of the outer arc surface of the four arc-shaped clamping members (14), one end of the mounting block (15) is provided with a plug hole (16), the inside of the plug hole (16) is movably plugged with a plug pin (17), and one end of the plug pin (17) is fixedly connected to the inside of the filter tank (2).

4. A centrifugal bag filter according to claim 3, characterized in that: One end of each of the four mounting blocks (15) is fixedly mounted with an internal thread block (18), the interior of each of the four internal thread blocks (18) is threadedly connected with a threaded rod (19), the four threaded rods (19) are rotatably connected to the filter tank (2), one end of each of the four threaded rods (19) extends to the outside of the filter tank (2) and is fixedly connected with a bevel gear (20), a rotating ring (21) is mounted on the surface of the filter tank (2), and a bevel gear ring (22) meshingly connected with the four bevel gears (20) is fixedly mounted at the bottom of the rotating ring (21).

5. A centrifugal bag filter according to claim 4, characterized in that: A transverse block (23) is fixedly mounted on the surface of the filter tank (2), an L-shaped block (24) is fixedly mounted on the circumferential surface of the rotating circle (21), and an electric telescopic rod (25) is rotatably mounted between one end of the transverse block (23) and the top of the L-shaped block (24).

6. A centrifugal bag filter according to claim 1, characterized in that: The cleaning component (8) comprises a hollow cover (26) located inside the filter bag (7), the surface of the hollow cover (26) is provided with four arc-shaped scrapers (27), any two adjacent arc-shaped scrapers (27) are arranged in an up-down offset manner, and the inner arc surfaces of the four arc-shaped scrapers (27) are fixedly mounted with adjustment rods (29), the surface of the hollow cover (26) is provided with four through holes (28), the four through holes (28) are respectively aligned with the four adjustment rods (29), and the four adjustment rods (29) are movably inserted into the inside of the four through holes (28) and extend into the inside of the hollow cover (26), and a linkage block (30) is provided inside the hollow cover (26), and linkage rods (31) are rotatably connected between the bottom of the linkage block (30) and one end of the four adjustment rods (29).

7. A centrifugal bag filter according to claim 7, characterized in that: An outer square inner threaded tube (32) is provided inside the filter bag (7), a motor (33) is installed inside the lower part of the outer square inner threaded tube (32), an output end of the motor (33) is fixedly connected to a threaded rod (34) extending to the inside of the hollow cover (26), and the threaded rod (34) is threadedly connected to the linkage block (30).

8. A centrifugal bag filter according to claim 7, characterized in that: A square inner groove (35) is provided between the middle parts of the tank cover (4) and the tank cap (5); an outer square inner threaded tube (32) is movably inserted into the inner part of the square inner groove (35); a threaded shaft (36) threadedly connected to the outer square inner threaded tube (32) is rotatably connected at the top of the square inner groove (35); the top of the threaded shaft (36) is fixedly connected to the output end of the forward and reverse motor (6); a ring groove (37) is provided at the bottom of the square inner groove (35); three sealing water retaining rings (38) in contact with the surface of the square inner threaded tube (32) are installed inside the ring groove (37).

9. A centrifugal bag filter according to claim 1, characterized in that: A water inlet pipe (39) is installed on the upper part of the surface of the centrifugal water tank (1), a sand settling tank (40) is installed at the bottom of the centrifugal water tank (1), a discharge pipe (41) is installed at one end of the sand settling tank (40), a valve A (42) is installed in the middle of the discharge pipe (41), a water outlet pipe (43) is installed at the bottom of the filter tank (2), and a valve B (44) is installed in the middle of the water outlet pipe (43).

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