Filtering device for brittle material processing

Abstract

The utility model discloses a brittle material processing and filtering device, which belongs to the technical field of filtering devices, and comprises a rack, a conveying mechanism, two filtering mechanisms and a quick replacement mechanism, the conveying mechanism is arranged on the right side of the rack, the two filtering mechanisms are arranged on the left side of the rack, the quick replacement mechanism is arranged on the filtering mechanisms, and the conveying mechanism is arranged on the rack. The filtering mechanism comprises a base, a filter cartridge, a supporting frame, a semicircular frame and a protective net, the base is fixedly mounted on the rack, the filter cartridge is fixedly mounted on the base, a water outlet is fixedly formed in the lower right side of the filter cartridge, a water inlet is fixedly formed in the upper right side of the filter cartridge, the supporting frame is fixedly mounted on the lower side in the filter cartridge, and the semicircular frame is fixedly mounted on the supporting frame. The two semicircular frames are arranged on the upper side of the supporting frame. Through the mode, the filter cotton can be quickly replaced without shutdown, and meanwhile, the filter cotton in the right filter cartridge can be completely replaced without shutdown, and meanwhile, continuous filtration of equipment is not influenced.

Description

Technical Field

[0001] This utility model relates to the field of filtration device technology, specifically a filtration device for processing brittle materials. Background Technology

[0002] During precision machining of brittle materials such as quartz, ceramics, and silicon, the quartz powder, ceramic powder, and silicon powder generated during cutting continuously disperse in the working area. When the cutting fluid cools the cutting head and the product, these fine powders flow with the liquid and adhere to the surface of the cutting head, interacting with the cutting head material and causing a sticking phenomenon. This hinders heat dissipation from the cutting head, forming localized high temperatures. As the machining time increases, heat accumulates continuously, eventually leading to excessively high cutting head temperatures and tool burning. This not only reduces the service life of the cutting tool but also affects the machining accuracy and quality of the product.

[0003] Chinese patent CN221752444U discloses a cutting fluid filtration device, specifically comprising: a filter box, with two support frames symmetrically fixedly connected to the lower part of the filter box; a liquid inlet pipe fixedly connected to the center of the top surface of the filter box; a liquid outlet pipe fixedly connected to the center of the bottom surface of the filter box; two extension frames symmetrically fixedly connected to the upper part of the filter box, the two extension frames being aligned; a sliding frame slidably connected within the two extension frames; two high-efficiency filter screens symmetrically arranged within the sliding frame; and two symmetrically formed discharge troughs at the upper part of the filter box. The two feeding troughs are aligned. A drive motor is bolted to the upper right of the rear end face of the filter box. A set of control screws is threaded into each of the two support frames. A set of lifting sliders is fixedly connected to the bottom end face of each set of control screws. The two sets of lifting sliders are slidably connected to the two support frames. A caster is bolted to the bottom end face of each set of lifting sliders. Two guide rails are symmetrically fixedly connected inside the filter box. Two guide sliders are symmetrically fixedly connected to the bottom end face of the sliding frame. The two guide sliders are slidably connected to the two guide rails.

[0004] However, the technical solution of this patent has the following problems:

[0005] This patent does not allow for quick replacement of the filter cotton without shutting down the machine, and it also does not allow for the complete replacement of the filter cotton in the right-side filter cartridge without shutting down the machine.

[0006] Therefore, those skilled in the art have provided a filtration device for processing brittle materials to solve the above-mentioned problems. Utility Model Content

[0007] The purpose of this invention is to provide a filtration device for processing brittle materials to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A filtration device for processing brittle materials includes a frame, and further includes a conveying mechanism, a filtering mechanism, and a quick-change mechanism. The conveying mechanism is installed on the right side of the frame, and two filtering mechanisms are installed on the left side of the frame. The quick-change mechanism is installed on the filtering mechanisms. Each filtering mechanism includes a base, a filter cartridge, a support frame, a semi-circular frame, and a protective net. The base is fixedly installed on the frame, and the filter cartridge is fixedly installed on the base. An outlet is fixedly installed on the lower right side of the filter cartridge, and an inlet is fixedly installed on the upper right side of the filter cartridge. The support frame is fixedly installed inside the lower side of the filter cartridge, and two semi-circular frames are arranged on the upper side of the support frame. Protective nets are fixedly installed on both the upper and lower sides of the semi-circular frames. The filtration mechanism also includes a protective component, which is installed on the support frame.

[0010] Furthermore, the protective component includes: a first waterproof rubber ring, a filter cotton and a second waterproof rubber ring. The first waterproof rubber ring is fixedly installed on the upper side of the support frame, the filter cotton is arranged inside the semi-circular frame, and the second waterproof rubber ring is fixedly installed on the upper and lower outer walls of the semi-circular frame.

[0011] Furthermore, the protective assembly also includes a sealing assembly, which is installed on the upper side of the filter cartridge. The sealing assembly includes a sealing cover, a threaded rod, a connecting seat, and a rotating block. The sealing cover is located on the upper side of the filter cartridge. One end of each of the threaded rods is hinged to the outer wall of the filter cartridge. The connecting seats are fixedly installed on the outer wall of the sealing cover. A rectangular slot is provided on the connecting seat. The end of each threaded rod away from the filter cartridge is located in the rectangular slot. The rotating block is located on the upper side of the rectangular slot and is threadedly connected to the threaded rod.

[0012] Furthermore, the protective assembly also includes a detection assembly, which is installed on the sealing cover. The detection assembly includes a third waterproof rubber ring and a pressure gauge. The third waterproof rubber ring is fixedly installed on the lower side of the sealing cover, and the detection end of the pressure gauge is fixedly installed on the sealing cover through the sealing cover.

[0013] Furthermore, the quick-change mechanism includes: a rotating plate, a fourth waterproof rubber ring, and an upper base. The rotating plate is rotatably connected to the middle side inside the filter cartridge via a rotating shaft. The fourth waterproof rubber ring is fixedly installed on the middle side of the rotating plate. The upper base is fixedly installed on the upper side of the rotating plate. A cross slot is provided on the upper base. The semi-circular frame is slidably connected to the rotating plate.

[0014] Furthermore, the quick-change mechanism also includes: a central shaft and a reversing handle, the central shaft being rotatably connected to the middle side of the sealing cover, a cross protrusion being provided on the lower side of the central shaft, and the reversing handle being fixedly installed on the upper side of the central shaft, the cross protrusion being provided in the cross slot;

[0015] Furthermore, the conveying mechanism includes: a water pump, a first pipe, a first valve, a second valve, a second pipe, and a third pipe. The water pump is fixedly installed on the right side of the frame. The first pipe is fixedly connected to the output end of the water pump. A first valve is fixedly installed on the left side of the first pipe. The end of the first valve away from the first pipe is fixedly connected to the inlet of the right filter cartridge. The second pipe is fixedly installed in the middle of the first pipe. The second valve is fixedly connected to the end of the second pipe away from the first pipe. The third pipe is fixedly installed on the end of the second valve away from the second pipe. The end of the third pipe away from the second valve is fixedly connected to the inlet of the left filter cartridge.

[0016] Furthermore, the conveying mechanism also includes a fourth pipe, a third valve, and a fifth pipe. One end of the fourth pipe is fixedly connected to the outlet of the right filter cartridge. The third valve is fixedly installed at the end of the fourth pipe away from the outlet of the right filter cartridge. One end of the fifth pipe is fixedly installed at the end of the third valve away from the fourth pipe. The end of the fifth pipe away from the third valve is fixedly connected to the inlet of the left filter cartridge.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model uses the rotation of the reversing handle to drive the central shaft to rotate, the rotation of the central shaft to drive the upper base to rotate, the rotation of the upper base to drive the rotating plate to rotate, and the rotation of the rotating plate to cause the semicircular frames on the left and right sides of the rotating plate to interchange positions. The degree of rotation of the reversing handle can be judged by the markings engraved on the upper side of the sealing cover. The interchange of the semicircular frames allows the filter cotton and protective net in the unused semicircular frame on the left to move to the right, which is conducive to quickly replacing the filter cotton without stopping the machine.

[0019] 2. By closing the first and third valves and opening the second valve, the water pump delivers the used cutting fluid. The cutting fluid passes through the first pipe, the second pipe, the second valve, the third pipe, and the left-side filter mechanism in sequence, and flows out after one filtration. At this time, the filter cotton in the right-side filter mechanism can be replaced. This allows for the replacement of all the filter cotton in the two semi-circular frames on the right side without stopping the machine, and without affecting the continuous filtration of the equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0021] Figure 2 This is a front view of the present utility model;

[0022] Figure 3 This is a top view of the present invention;

[0023] Figure 4For along Figure 3 Sectional view along the AA direction;

[0024] Figure 5 This is a partial structural diagram of the filtration mechanism of this utility model. Figure 1 ;

[0025] Figure 6 This is a partial structural diagram of the filtration mechanism of this utility model. Figure 2 ;

[0026] Figure 7 This is a partial structural diagram of the filtration mechanism of this utility model. Figure 3 ;

[0027] Figure 8 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0028] Figure 9 for Figure 8 A magnified view of A in the middle.

[0029] In the diagram: 1. Frame; 2. Conveying mechanism; 21. Water pump; 22. First pipe; 23. First valve; 24. Second valve; 25. Second pipe; 26. Third pipe; 27. Fourth pipe; 28. Third valve; 29. ​​Fifth pipe; 3. Filtration mechanism; 31. Base; 32. Filter cartridge; 33. Support frame; 34. Semicircular frame; 35. Protective net; 36. Outlet; 37. Inlet; 38. First waterproof rubber ring; 39. Filter cotton; 310. Second waterproof rubber ring; 311. Sealing cover; 312. Threaded rod; 313. Connecting seat; 314. Rotating block; 315. Rectangular slot; 316. Third waterproof rubber ring; 317. Pressure gauge; 4. Quick change mechanism; 41. Rotating plate; 42. Fourth waterproof rubber ring; 43. Upper base; 44. Cross slot; 45. Central shaft; 46. Reversing handle; 47. Cross protrusion. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0032] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-9A filtration device for processing brittle materials includes a frame 1, and further includes a conveying mechanism 2, a filtering mechanism 3, and a quick-change mechanism 4. The conveying mechanism 2 is installed on the right side of the frame 1, and two filtering mechanisms 3 are installed on the left side of the frame 1. The quick-change mechanism 4 is installed on the filtering mechanism 3. The filtering mechanism 3 includes a base 31, a filter cartridge 32, a support frame 33, a semi-circular frame 34, and a protective net 35. The base 31 is fixedly installed on the frame 1, and the filter cartridge 32 is fixedly installed on the base 31. An outlet 36 is fixedly installed on the lower right side of the filter cartridge 32, and an inlet 37 is fixedly installed on the upper right side of the filter cartridge 32. The support frame 33 is fixedly installed inside the lower side of the filter cartridge 32, and two semi-circular frames 34 are arranged on the upper side of the support frame 33. Protective nets 35 are fixedly installed on both the upper and lower sides of the semi-circular frames 34. The filtering mechanism 3 also includes a protective component, which is installed on the support frame 33.

[0033] The conveying mechanism 2 delivers the used cutting fluid to the filtering mechanism 3, which filters the used cutting fluid. The quick-change mechanism 4 quickly replaces the components of the filtering mechanism 3 without stopping the machine.

[0034] The protective assembly includes: a first waterproof rubber ring 38, a filter cotton 39, and a second waterproof rubber ring 310. The first waterproof rubber ring 38 is fixedly installed on the upper side of the support frame 33. The filter cotton 39 is disposed inside the semi-circular frame 34. The second waterproof rubber ring 310 is fixedly installed on the upper and lower outer walls of the semi-circular frame 34. The first waterproof rubber ring 38 is used to seal the gap between the semi-circular frame 34 and the support frame 33, and the second waterproof rubber ring 310 is used to seal the gap between the semi-circular frame 34 and the filter cartridge 32.

[0035] The conveying mechanism 2 delivers the used cutting fluid to the inlet 37 of the right-side filtration mechanism 3. The used cutting fluid is filtered through the two protective nets 35 above and below the semi-circular frame 34 and the filter cotton 39, and flows out from the outlet 36 on the lower right side of the filter cartridge 32.

[0036] The protective assembly further includes a sealing assembly, which is installed on the upper side of the filter cartridge 32. The sealing assembly includes a sealing cover 311, a threaded rod 312, a connecting seat 313, and a rotating block 314. The sealing cover 311 is disposed on the upper side of the filter cartridge 32. One end of each of the threaded rods 312 is hinged to the outer wall of the filter cartridge 32. The connecting seats 313 are fixedly installed on the outer wall of the sealing cover 311. A rectangular slot 315 is provided on the connecting seat 313. The end of the threaded rod 312 away from the filter cartridge 32 is disposed in the rectangular slot 315. The rotating block 314 is disposed on the upper side of the rectangular slot 315 and is threadedly connected to the threaded rod 312.

[0037] When disassembling the sealing cover 311, loosen the rotating block 314 from the threaded rod 312, rotate the threaded rod 312 so that the threaded rod 312 leaves the rectangular slot 315 of the connecting seat 313. At this time, the sealing cover 311 is unlocked, and the sealing cover 311 can be quickly opened. The semi-circular frame 34 can be pulled out, and after replacing the new filter cotton 39, the semi-circular frame 34 can be inserted back into the filter cartridge 32.

[0038] When installing the sealing cover 311, rotate the threaded rod 312 so that the threaded rod 312 enters the rectangular slot 315 of the connecting seat 313, and tighten the rotating block 314 to lock the sealing cover 311.

[0039] The protective assembly further includes a detection assembly, which is installed on the sealing cover 311. The detection assembly includes a third waterproof rubber ring 316 and a pressure gauge 317. The third waterproof rubber ring 316 is fixedly installed on the lower side of the sealing cover 311. The detection end of the pressure gauge 317 passes through the sealing cover 311 and is fixedly installed on the sealing cover 311. The third waterproof rubber ring 316 is used to seal the gap between the sealing cover 311 and the filter cartridge 32. The pressure gauge 317 is used to detect the pressure inside the right filter cartridge 32.

[0040] Example 2: In some embodiments, such as Figures 1-9 In a preferred embodiment of this utility model, the quick replacement mechanism 4 includes: a rotating plate 41, a fourth waterproof rubber ring 42, and an upper base 43. The rotating plate 41 is rotatably connected to the middle side inside the filter cartridge 32 via a rotating shaft. The fourth waterproof rubber ring 42 is fixedly installed on the middle side of the rotating plate 41. The upper base 43 is fixedly installed on the upper side of the rotating plate 41. A cross slot 44 is provided on the upper base 43. The semi-circular frame 34 is slidably connected to the rotating plate 41.

[0041] The quick-change mechanism 4 further includes: a central shaft 45 and a reversing handle 46. The central shaft 45 is rotatably connected to the middle side of the sealing cover 311. A cross protrusion 47 is provided on the lower side of the central shaft 45. The reversing handle 46 is fixedly installed on the upper side of the central shaft 45. The cross protrusion 47 is provided in the cross slot 44.

[0042] To quickly replace the filter cotton 39 and the protective net 35, rotate the reversing handle 46. The rotation of the reversing handle 46 drives the central shaft 45 to rotate, which in turn drives the upper base 43 to rotate. The rotation of the upper base 43 drives the rotating plate 41 to rotate, which in turn causes the semicircular frames 34 on the left and right sides of the rotating plate 41 to interchange positions. The degree of rotation of the reversing handle 46 can be determined by the markings engraved on the upper side of the sealing cover 311. The interchange of the semicircular frames 34 allows the filter cotton 39 and the protective net 35 in the unused semicircular frame 34 on the left to move to the right, which is beneficial for quickly replacing the filter cotton 39 without stopping the machine.

[0043] The pressure gauge 317 on the sealing cover 311 is used to detect the pressure inside the right filter cartridge 32. If the pressure is lower than the preset value, there may be air leakage between the rotating plate 41 and the semi-circular frame 34 inside the filter cartridge 32. At this time, the equipment needs to be stopped, and the first waterproof rubber ring 38, the second waterproof rubber ring 310 and the fourth waterproof rubber ring 42 need to be inspected and replaced to avoid contamination of the unused filter cotton 39 on the left side, which would weaken the filtration effect after replacement.

[0044] The conveying mechanism 2 includes: a water pump 21, a first pipe 22, a first valve 23, a second valve 24, a second pipe 25, and a third pipe 26. The water pump 21 is fixedly installed on the right side of the frame 1. The first pipe 22 is fixedly connected to the output end of the water pump 21. The first valve 23 is fixedly installed on the left side of the first pipe 22. The end of the first valve 23 away from the first pipe 22 is fixedly connected to the inlet 37 of the right filter cartridge 32. The second pipe 25 is fixedly installed in the middle of the first pipe 22. The second valve 24 is fixedly connected to the end of the second pipe 25 away from the first pipe 22. The third pipe 26 is fixedly installed on the end of the second valve 24 away from the second pipe 25. The end of the third pipe 26 away from the second valve 24 is fixedly connected to the inlet 37 of the left filter cartridge 32.

[0045] The conveying mechanism 2 further includes a fourth pipe 27, a third valve 28, and a fifth pipe 29. One end of the fourth pipe 27 is fixedly connected to the outlet 36 of the right filter cartridge 32. The third valve 28 is fixedly installed at the end of the fourth pipe 27 away from the outlet 36 of the right filter cartridge 32. One end of the fifth pipe 29 is fixedly installed at the end of the third valve 28 away from the fourth pipe 27. The end of the fifth pipe 29 away from the third valve 28 is fixedly connected to the inlet 37 of the left filter cartridge 32.

[0046] Open the first valve 23 and the third valve 28 of the conveying mechanism 2, and close the second valve 24. The water pump 21 conveys the used cutting fluid. The cutting fluid passes through the first pipe 22, the first valve 23, the right filter mechanism 3, the fourth pipe 27, the third valve 28, the fifth pipe 29, and the left filter mechanism 3 in sequence. After two filtrations, it flows out. If the filtration effect of the filter cotton 39 in the two semi-circular frames 34 on the right is weakened and the water output is greatly reduced, the left filter mechanism 3 can be used for filtration at this time.

[0047] Close the first valve 23 and the third valve 28, open the second valve 24, and the water pump 21 will deliver the used cutting fluid. The cutting fluid will pass through the first pipe 22, the second pipe 25, the second valve 24, the third pipe 26 and the left filter mechanism 3 in sequence, and flow out after one filtration. At this time, the filter cotton 39 in the right filter mechanism 3 can be replaced. This is beneficial to replace all the filter cotton 39 in the two semi-circular frames 34 on the right side without stopping the machine, and at the same time, it will not affect the continuous filtration of the equipment.

[0048] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A filtration device for processing brittle materials, comprising a frame (1), characterized in that, Also includes: The machine includes a conveying mechanism (2), a filtering mechanism (3), and a quick-change mechanism (4). The conveying mechanism (2) is installed on the right side of the frame (1), and the two filtering mechanisms (3) are installed on the left side of the frame (1). The quick-change mechanism (4) is installed on the filtering mechanism (3). The filtering mechanism (3) includes: a base (31), a filter cartridge (32), a support frame (33), a semi-circular frame (34), and a protective net (35). The base (31) is fixedly installed on the frame (1), and the filter cartridge (32) is fixedly installed on the frame (1). Installed on the base (31), the filter cartridge (32) has an outlet (36) fixedly installed on the lower right side and an inlet (37) fixedly installed on the upper right side. The support frame (33) is fixedly installed on the lower side inside the filter cartridge (32). Two semi-circular frames (34) are set on the upper side of the support frame (33). Protective nets (35) are fixedly installed on both the upper and lower sides of the semi-circular frames (34). The filtration mechanism (3) also includes a protective component, which is installed on the support frame (33).

2. The filtration device for processing brittle materials according to claim 1, characterized in that, The protective components include: a first waterproof rubber ring (38), a filter cotton (39), and a second waterproof rubber ring (310). The first waterproof rubber ring (38) is fixedly installed on the upper side of the support frame (33), the filter cotton (39) is set inside the semi-circular frame (34), and the second waterproof rubber ring (310) is fixedly installed on the upper and lower outer walls of the semi-circular frame (34).

3. The filtration device for processing brittle materials according to claim 2, characterized in that, The protective assembly further includes a sealing assembly, which is installed on the upper side of the filter cartridge (32). The sealing assembly includes a sealing cover (311), a threaded rod (312), a connecting seat (313), and a rotating block (314). The sealing cover (311) is located on the upper side of the filter cartridge (32). One end of each of the threaded rods (312) is hinged to the outer wall of the filter cartridge (32). The connecting seats (313) are fixedly installed on the outer wall of the sealing cover (311). A rectangular slot (315) is provided on the connecting seat (313). One end of the threaded rod (312) away from the filter cartridge (32) is located in the rectangular slot (315). The rotating block (314) is located on the upper side of the rectangular slot (315) and is threadedly connected to the threaded rod (312).

4. The filtration device for processing brittle materials according to claim 3, characterized in that, The protective assembly further includes a detection assembly mounted on the sealing cover (311).

5. The filtration device for processing brittle materials according to claim 4, characterized in that, The quick replacement mechanism (4) includes: a rotating plate (41), a fourth waterproof rubber ring (42) and an upper base (43). The rotating plate (41) is rotatably connected to the middle side inside the filter cartridge (32) via a rotating shaft. The fourth waterproof rubber ring (42) is fixedly installed on the middle side of the rotating plate (41). The upper base (43) is fixedly installed on the upper side of the rotating plate (41). A cross slot (44) is provided on the upper base (43). The semi-circular frame (34) is slidably connected to the rotating plate (41) up and down.

6. The filtration device for processing brittle materials according to claim 5, characterized in that, The quick-change mechanism (4) further includes: a central shaft (45) and a reversing handle (46). The central shaft (45) is rotatably connected to the middle side of the sealing cover (311). A cross protrusion (47) is provided on the lower side of the central shaft (45). The reversing handle (46) is fixedly installed on the upper side of the central shaft (45). The cross protrusion (47) is provided in the cross slot (44).

7. The filtration apparatus for processing brittle materials according to claim 6, characterized in that, The conveying mechanism (2) includes: a water pump (21), a first pipe (22), a first valve (23), a second valve (24), a second pipe (25), and a third pipe (26). The water pump (21) is fixedly installed on the right side of the frame (1). The first pipe (22) is fixedly connected to the output end of the water pump (21). The first valve (23) is fixedly installed on the left side of the first pipe (22). The end of the first valve (23) away from the first pipe (22) is fixedly connected to the inlet (37) of the right filter cartridge (32). The second pipe (25) is fixedly installed in the middle of the first pipe (22). The second valve (24) is fixedly connected to the end of the second pipe (25) away from the first pipe (22). The third pipe (26) is fixedly installed on the end of the second valve (24) away from the second pipe (25). The end of the third pipe (26) away from the second valve (24) is fixedly connected to the inlet (37) of the left filter cartridge (32).

8. The filtration apparatus for processing brittle materials according to claim 7, characterized in that, The conveying mechanism (2) further includes: a fourth pipe (27), a third valve (28) and a fifth pipe (29). One end of the fourth pipe (27) is fixedly connected to the outlet (36) of the right filter cartridge (32). The third valve (28) is fixedly installed at the end of the fourth pipe (27) away from the outlet (36) of the right filter cartridge (32). One end of the fifth pipe (29) is fixedly installed at the end of the third valve (28) away from the fourth pipe (27). The end of the fifth pipe (29) away from the third valve (28) is fixedly connected to the inlet (37) of the left filter cartridge (32).

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