Solid-liquid separation device and method

Abstract

The invention relates to the technical field of filtering devices, in particular to a solid-liquid separation device and method.The solid-liquid separation device comprises a rack, a barrel arranged on the rack and a filter cartridge arranged in the barrel, and a cleaning assembly used for cleaning impurities on the inner wall of the filter cartridge is arranged on the barrel; a collecting assembly for collecting extruded impurities is arranged in the barrel, and a plugging assembly for plugging the filter cartridge and the collecting assembly is arranged in the barrel; the collecting assembly comprises a filtering ring connected to the inner wall of the barrel body in a sliding mode, a mounting block arranged on the filtering ring, a driving air cylinder fixed to the mounting block and a collecting ring arranged between the filtering ring and the filtering barrel, and the driving air cylinder is fixed to the barrel body; the driving air cylinder is used for driving the collecting assembly and the blocking assembly to move in the axis direction of the filter cartridge, and the collecting ring and the mounting block are arranged at the two opposite ends of the filter ring. The device has the effect of reducing impurities discharged from the liquid outlet pipe.

Description

Technical Field

[0001] This application relates to the technical field of filtering devices, and in particular, to a solid-liquid separation device and method. Background Art

[0002] There are many kinds of chemical products. During the production of liquid chemical products, a scraper filter is required to filter the chemical liquid, and finally separate the impurities in the liquid.

[0003] For example, a Chinese patent document with the publication number CN221933204U discloses a scraper-type automatic cleaning filter, including a filter and an automatic cleaning structure. The automatic cleaning structure is installed inside the filter body; the automatic cleaning structure includes a motor, a rotating shaft, a scraper, a spring, and a scraper sleeve. The rotating shaft is connected to the output end of the motor. A scraper sleeve is installed on the rotating shaft, and a scraper is installed on the scraper sleeve through a spring. When in use, the liquid enters the cylinder through the water inlet pipe, and then passes through the filter cartridge for filtration. The filtered liquid is discharged through the liquid outlet pipe. The impurities will adhere to the inner wall of the filter cartridge. Then, during the movement of the scraper, the impurities adhering to the inner wall of the filter cartridge are cleaned, reducing the situation where the filter cartridge is blocked by impurities. When the scraper scrapes the impurities on the inner wall of the filter cartridge, the material will be scraped off and finally the impurities are discharged through the discharge pipe.

[0004] In the above related technology, although the filtration of the liquid can be achieved, when the hardness of the impurities is not large enough, a part of the impurities on the inner wall of the filter cartridge will be scraped off by the scraper, and another part of the impurities will be squeezed. A part of the squeezed impurities will enter between the housing and the outer wall of the filter cartridge through the filter holes on the filter cartridge, and another part will adhere to the filter holes. Then, during filtration, the flow of the liquid will impact the impurities adhering to the filter holes and enter between the housing and the filter cartridge. The last part of the impurities will be discharged through the liquid outlet pipe, thus affecting the filtration effect of the liquid. Summary of the Invention

[0005] This application provides a solid-liquid separation device and method, aiming to solve the problem that impurities are squeezed and discharged through the liquid outlet pipe in the related technology.

[0006] First aspect: A solid-liquid separation device provided by this application adopts the following technical solution: A solid-liquid separation device, comprising a frame, a cylinder body arranged on the frame, and a filter cartridge arranged inside the cylinder body. A cleaning component for cleaning impurities on the inner wall of the filter cartridge is arranged on the cylinder body. A collection component for collecting the extruded impurities is arranged inside the cylinder body. A blocking component for blocking the filter cartridge and the collection component is arranged inside the cylinder body. The collection component includes a filter ring slidably connected to the inner wall of the cylinder body, a mounting block arranged on the filter ring, a driving cylinder fixed on the mounting block, and a collection ring arranged between the filter ring and the filter cartridge. The driving cylinder is fixed on the cylinder body and is used to drive the collection component and the blocking component to move along the axis direction of the filter cartridge. The collection ring and the mounting block are arranged at opposite ends of the filter ring. The blocking component includes a connecting ring rotatably connected to the mounting block, a first blocking ring fixed on the connecting ring, and a second blocking ring fixed on the connecting ring. The first blocking ring abuts against the outer wall of the filter cartridge and is used to block the filter cartridge. The second blocking ring abuts against the inner wall of the filter ring and is used to block the filter ring.

[0007] By adopting the above technical solution, when it is necessary to clean the impurities on the inner wall of the filter cartridge, first rotate the first blocking ring and the second blocking ring. Then, when the cleaning component is cleaning the impurities, since the first blocking ring blocks the filter cartridge, at this time, the impurities will not be pushed out of the filter holes on the filter cartridge, and a part of the impurities will enter the filter holes of the filter cartridge. At this time, continue to rotate the connecting ring, and the first blocking ring and the second blocking ring rotate simultaneously. The filter holes on the first blocking ring coincide with the filter holes on the filter cartridge. Then, the filter holes on the second blocking ring and the filter holes on the filter ring are still not coincident, and at this time, the filter ring is still in a blocked state. Then, when the liquid is flowing, it will enter between the first blocking ring and the second blocking ring. At this time, the impurities in the filter holes of the filter cartridge will be washed into the space between the first blocking ring and the second blocking ring. Finally, rotate the connecting ring in the reverse direction to make the first blocking ring block the filter cartridge and the second blocking ring block the filter ring. At this time, clean the liquid and impurities between the first blocking ring and the second blocking ring, so as to reduce the discharge of impurities from the liquid outlet pipe.

[0008] Optionally, the cleaning component includes a first cleaning shaft rotatably arranged on the cylinder body, a first cleaning plate fixed on the first cleaning shaft, a second cleaning shaft rotatably connected to the first cleaning shaft, and a second cleaning plate fixed on the second cleaning shaft. The first cleaning plate and the second cleaning plate both abut against the inner wall of the filter cartridge, and the second cleaning shaft passes through the first cleaning shaft. A driving device for driving the first cleaning shaft or the second cleaning shaft to rotate is arranged on the cylinder body, and the length of the blocking component is less than the length of the filter cartridge.

[0009] By adopting the above technical solution, when the collection component and the plugging component correspond to the first cleaning plate, the filter cartridge corresponding to the second cleaning plate can still filter the liquid. When the collection component and the plugging component correspond to the second cleaning plate, the filter cartridge corresponding to the first cleaning plate can still filter the liquid, thereby improving the liquid filtration efficiency.

[0010] Optionally, the driving device includes a driving motor fixed on the cylinder body and a linkage component arranged on the driving motor; the linkage component includes a first linkage block fixed on the first cleaning shaft, a second linkage block fixed on the second cleaning shaft, a linkage cylinder fixed on the cylinder body, and a linkage shaft rotatably connected to the linkage cylinder. A linkage groove for inserting the first linkage block or the second linkage block is formed on the linkage shaft.

[0011] By adopting the above technical solution, when the linkage cylinder drives the linkage shaft to move so that the first linkage block is in the linkage groove and the second linkage block is out of the linkage groove, the driving motor rotates to drive the first cleaning shaft and the first cleaning plate to rotate, cleaning the first half of the filter cartridge; when the second linkage block is in the linkage groove and the first linkage block is out of the linkage groove, the driving motor rotates to drive the second cleaning shaft and the second cleaning plate to rotate, cleaning the second half of the filter cartridge.

[0012] Optionally, a control component for driving the connecting ring to rotate is arranged on the cylinder body. The control component includes a first control rod fixed on the connecting ring, a second control rod penetrating through the first control rod, a large gear ring rotatably connected to the cylinder body, and a gear rotatably connected to the cylinder body. The second control rod is rotatably connected to the large gear ring, the gear and the large gear ring are meshed, a control motor is arranged on the cylinder body, an output shaft of the control motor is connected to the gear, the first control rod slides on the second control rod, and the first control rod penetrates through the collecting ring.

[0013] By adopting the above technical solution, the control motor drives the gear to rotate, and then the gear drives the large gear ring to rotate, thereby driving the connecting ring to rotate and adjusting the positions of the first plugging ring and the second plugging ring.

[0014] Optionally, external threads are provided on one of the first control rods, and the collecting ring is threadedly connected to the first control rod provided with the external threads; a connecting pipe is installed on the collecting ring, the connecting pipe communicates with the cavity between the first plugging ring and the second plugging ring, a filter screen is arranged in the connecting pipe, the pore diameter of the filter screen is smaller than the pore diameter of the filter cartridge, and a one-way valve is arranged on the connecting pipe.

[0015] By adopting the above technical solution, when the impurities in the filter holes rush between the first sealing ring and the second sealing ring, the filter ring and the filter cartridge are sealed. Then, the second control rod is driven to rotate by the servo motor, and the first control rod is driven to rotate by the second control rod. Since an external thread is provided on one first control rod, the collecting ring can be driven to move towards the connecting ring at this time, squeezing the liquid between the first sealing ring and the second sealing ring. At this time, the liquid can be discharged through the connecting pipe.

[0016] Optionally, a material suction assembly is provided on the cylinder body. The material suction assembly includes a fixed pipe fixed on the cylinder body, a moving pipe slidably connected to the fixed pipe, and a self-priming pump connected to the fixed pipe. The moving pipe is fixed on the connecting ring, and the moving pipe communicates with the cavity between the first sealing ring and the second sealing ring.

[0017] By adopting the above technical solution, when the collecting ring moves towards the connecting ring, after the liquid is squeezed out, the impurities are sucked out of the collecting ring by the self-priming pump through the moving pipe and the fixed pipe.

[0018] Optionally, an installation ring is provided on the filter cartridge, and a support ring for supporting the installation ring is provided on the inner wall of the cylinder body.

[0019] By adopting the above technical solution, the purpose of facilitating the installation of the filter cartridge is achieved under the action of the installation ring.

[0020] Optionally, a moving groove for the second control rod to rotate is formed on the installation ring. An installation sleeve is arranged in the moving groove. The installation sleeve is rotatably connected to the second control rod, and sealing elastic pieces are arranged on both sides of the installation sleeve. Optionally, two first control rods and two second control rods are provided.

[0021] By adopting the above technical solution, when the large gear ring rotates, the rotation of the second control rod and the first control rod is more stable.

[0022] Second aspect: A solid-liquid separation method includes the following steps: S1: When the cleaning component cleans the impurities on the inner wall of the filter cartridge, the collecting component and the sealing component are made to correspond to the position of the filter cartridge corresponding to the first cleaning shaft; S2: The connecting ring drives the first sealing ring and the second sealing ring to rotate to seal the filter holes on the filter cartridge and the filter ring; S3: After the cleaning is completed, the filter holes on the filter cartridge are opened, and the filter holes on the filter ring remain sealed; S4: The impurities in the filter holes on the filter cartridge enter between the first sealing ring and the second sealing ring to seal the filter holes on the filter cartridge.

[0023] By adopting the above technical solution, when it is necessary to clean the impurities on the inner wall of the filter cartridge, first make the collection component and the plugging component correspond to the position of the filter cartridge corresponding to the first cleaning shaft. Since the lengths of the collection component and the plugging component are less than the length of the filter cartridge, after the first plugging ring and the second plugging ring plug the filter holes on the filter ring and the filter cartridge, the filter cartridge that does not correspond to the collection component and the plugging component can still filter the liquid. When the positions of the filter cartridge corresponding to the collection component and the plugging component are corresponding, the filter holes on the filter cartridge are plugged by the first plugging ring, and the filter ring is plugged by the second plugging ring. Under the action of the collection ring, a sealed state is formed between the first plugging ring and the second plugging ring. At this time, when the first cleaning plate is cleaning, the impurities will not be pushed through the filter cartridge into the space between the filter cartridge and the cylinder body, thereby reducing the purpose of impurities being discharged from the liquid outlet pipe.

[0024] In summary, the present application includes at least one of the following beneficial effects: 1. The filter cartridge is plugged by the first plugging ring, and the filter ring is also plugged by the second plugging ring. Then, when the cleaning component is cleaning the impurities, since the first plugging ring plugs the filter cartridge, the impurities will not be pushed away from the filter cartridge at this time; 2. After the first cleaning plate finishes cleaning, the driving cylinder drives the collection component and the plugging component to move downward, so that the driving device drives the second cleaning plate to rotate. At this time, the impurities below the filter cartridge are cleaned by the collection component, the plugging component and the second cleaning plate, so as to achieve the purpose of continuous filtration while cleaning. Description of the Drawings

[0025] Figure 1 is the overall structural schematic diagram of the embodiment of the present application.

[0026] Figure 2 is the sectional view of the cylinder body of the embodiment of the present application.

[0027] Figure 3 is the sectional view of the filter cartridge of the embodiment of the present application.

[0028] Figure 4 is Figure 3 the enlarged view of part A in

[0029] Figure 5 is the partial enlarged view of the plugging component of the embodiment of the present application.

[0030] Figure 6 is the structural schematic diagram of the filter ring and the mounting block of the embodiment of the present application.

[0031] Figure 7 is the structural schematic diagram of the collection ring of the embodiment of the present application.

[0032] Figure 8 is the structural schematic diagram of the control component of the embodiment of the present application.

[0033] Figure 9 It is a schematic diagram of the gear and large gear ring structure of an embodiment of the present application.

[0034] Figure 10 It is a schematic diagram of the linkage component structure of an embodiment of the present application.

[0035] Reference numerals: 01, frame; 02, cylinder body; 03, filter cartridge; 04, liquid inlet pipe; 07, support ring; 08, mounting ring; 1, cleaning component; 11, first cleaning shaft; 12, first cleaning plate; 13, second cleaning shaft; 14, second cleaning plate; 2, collection component; 21, filter ring; 22, mounting block; 23, driving cylinder; 24, collection ring; 3, plugging component; 31, connecting ring; 32, first plugging ring; 33, second plugging ring; 4, linkage component; 41, first linkage block; 42, second linkage block; 43, linkage cylinder; 44, linkage shaft; 45, linkage groove; 5, control component; 51, first control rod; 52, second control rod; 53, large gear ring; 54, gear; 55, control motor; 6, moving groove; 61, mounting sleeve; 62, sealing elastic sheet; 7, material suction component; 71, fixed pipe; 72, moving pipe; 8, driving motor. Detailed implementation manners

[0036] The following is further described in detail in conjunction with Figures 1 - 10 the present application.

[0037] First aspect: An embodiment of the present application discloses a solid-liquid separation device. Refer to Figures 1 to 4 A solid-liquid separation device includes a frame 01, a cylinder body 02 provided on the frame 01, and a filter cartridge 03 provided in the cylinder body 02. A cleaning component 1 for cleaning impurities on the inner wall of the filter cartridge 03 is provided on the cylinder body 02. At the same time, a collection component 2 is provided in the cylinder body 02, and the collection component 2 is used to collect impurities extruded from the filter cartridge 03. In addition, a plugging component 3 is provided in the cylinder body 02, and the plugging component 3 is used to plug the filter cartridge 03 and the collection component 2. When the cleaning component 1 cleans the inner wall of the filter cartridge 03, it can reduce the cleaning component 1 from pushing impurities through the filter cartridge 03, thereby improving the liquid filtration effect.

[0038] Refer to Figures 1 to 4, a liquid inlet pipe 04 and a liquid outlet pipe are provided on the cylinder body 02. At the same time, a discharge pipe is provided on the cylinder body 02. The cleaning component 1 is used to scrape the impurities on the inner wall of the filter cartridge 03. A pushing component (not shown in the figure) is provided in the filter cartridge 03. After the filtration is completed, the impurities scraped off in the filter cartridge 03 are pushed into the discharge pipe by the pushing component, and the scraped impurities are discharged through the discharge pipe. In addition, a support ring 07 is provided on the inner wall of the cylinder body 02, and a mounting ring 08 is provided on the filter cartridge 03. The mounting ring 08 is fixed to the support ring 07 by bolts. The liquid enters the filter cartridge 03 through the liquid inlet pipe 04, and the filtered liquid enters between the cylinder body 02 and the filter cartridge 03, and then is discharged through the liquid outlet pipe, so as to achieve the purpose of filtration.

[0039] In this embodiment, the pushing component includes a pushing screw rod rotatably connected to the cylinder body 02 and a pushing plate slidably connected in the filter cartridge 03. The pushing plate is threadedly connected to the pushing screw rod. The scraped impurities will fall to the bottom of the filter cartridge 03 under the action of gravity. At this time, the pushing screw rod drives the pushing plate to move, pushing the removed impurities to the discharge pipe, and then discharging them through the discharge pipe. The pushing component belongs to the prior art, and the specific structure and working principle will not be described in detail.

[0040] Refer to Figures 1 to 7 , the collecting component 2 includes a filtering ring 21 slidably connected to the inner wall of the cylinder body 02, a mounting block 22 provided on the filtering ring 21, a driving cylinder 23 fixed to the mounting block 22, and a collecting ring 24 provided between the filtering ring 21 and the filter cartridge 03. The driving cylinder 23 is fixed to the cylinder body 02, and the piston rod of the driving cylinder 23 is connected to the mounting block 22. The collecting ring 24 and the mounting block 22 are arranged at opposite ends of the filtering ring 21. The driving cylinder 23 is used to drive the collecting component 2 and the blocking component 3 to move horizontally.

[0041] Refer to Figures 1 to 5, the plugging assembly 3 includes a connecting ring 31 rotatably connected to the mounting block 22, a first plugging ring 32 fixed to the connecting ring 31, and a second plugging ring 33 fixed to the connecting ring 31. The first plugging ring 32 abuts against the outer wall of the filter cartridge 03, and the second plugging ring 33 abuts against the inner wall of the filter ring 21. The filter holes on the filter ring 21 and the filter holes on the filter cartridge 03 are arranged in a staggered manner. In the initial state, the filter holes on the first plugging ring 32 coincide with the filter holes on the filter cartridge 03, and the filter holes on the filter ring 21 coincide with the filter holes on the second plugging ring 33. Then, the filtered liquid enters between the filter ring 21 and the filter cartridge 03, then flows out through the filter ring 21, and finally enters the liquid outlet pipe. In this embodiment, the lengths of the first plugging ring 32 and the second plugging ring 33 are less than the length of the filter cartridge 03, and the lengths of the first plugging ring 32 and the second plugging ring 33 are the same, and the length of the second plugging ring 33 is the same as the length of the filter ring 21. A control assembly 5 is provided on the cylinder body 02. The control assembly 5 is used to drive the connecting ring 31 to rotate, so that the first plugging ring 32 can plug the filter cartridge 03 and the second plugging ring 33 can plug the filter ring 21.

[0042] Refer to Figures 1 to 5 , the cleaning assembly 1 includes a first cleaning shaft 11 rotatably mounted on the cylinder body 02, a first cleaning plate 12 fixed to the first cleaning shaft 11, a second cleaning shaft 13 rotatably connected to the first cleaning shaft 11, and a second cleaning plate 14 fixed to the second cleaning shaft 13. The first cleaning plate 12 and the second cleaning plate 14 both abut against the inner wall of the filter cartridge 03, and the second cleaning shaft 13 passes through the first cleaning shaft 11. At the same time, a driving device is provided on the cylinder body 02. The driving device is used to drive the first cleaning shaft 11 or the second cleaning shaft 13 to rotate. In the initial state, the collecting assembly 2 and the plugging assembly 3 correspond to the first cleaning plate 12. When it is necessary to clean the impurities on the inner wall of the filter cartridge 03, first, the control assembly 5 drives the first plugging ring 32 and the second plugging ring 33 to rotate, and then the driving device drives the first cleaning shaft 11 to rotate, and the second cleaning shaft 13 does not rotate. The first cleaning shaft 11 enables the first cleaning plate 12 to clean the first half of the filter cartridge 03. At this time, since the first plugging ring 32 plugs the filter cartridge 03, during the cleaning process, the extruded impurities will only enter the filter holes of the filter cartridge 03 and will not pass through the filter holes on the filter cartridge 03, which can reduce the impurities entering the outside of the filter cartridge 03, thereby reducing the impurities discharged from the liquid outlet pipe.

[0043] Refer to Figures 2 to 6 , since the driving cylinder 23 is connected to the mounting block 22, at this time, the plugging assembly 3 and the collecting assembly 2 can be driven by the driving cylinder 23 to move along the length direction of the first cleaning shaft 11. When the collecting assembly 2 corresponds to the plugging assembly 3 and the first cleaning plate 12, the plugging assembly 3 plugs the position corresponding to the filter cartridge 03 and the first cleaning plate 12. At this time, the position corresponding to the second cleaning plate 14 can still filter the liquid.

[0044] When impurities on the inner wall of the filter cartridge 03 need to be cleaned, rotate the connecting ring 31, and then rotate the first plugging ring 32 and the second plugging ring 33 so that the filter holes on the first plugging ring 32 do not coincide with the filter holes on the filter cartridge 03. At this time, the filter cartridge 03 is plugged by the first plugging ring 32, and the second plugging ring 33 also plugs the filter ring 21. Then when the cleaning assembly 1 cleans the impurities, since the first plugging ring 32 plugs the filter cartridge 03, at this time, the impurities will not be pushed from the filter holes on the filter cartridge 03 to the outside of the filter cartridge 03, and a part of the impurities will enter the filter holes of the filter cartridge 03.

[0045] After the impurities on the inner wall of the filter cartridge 03 are cleaned, continue to rotate the connecting ring 31 at this time. The first plugging ring 32 and the second plugging ring 33 rotate simultaneously. The filter holes on the first plugging ring 32 coincide with the filter holes on the filter cartridge 03, and then the filter holes on the second plugging ring 33 and the filter holes on the filter ring 21 are still in a non-coincident state. At this time, the filter ring 21 is still in a plugged state. Then when the liquid flows, it will enter between the first plugging ring 32 and the second plugging ring 33. At this time, the impurities in the filter holes on the filter cartridge 03 will be washed between the first plugging ring 32 and the second plugging ring 33. Finally, rotate the connecting ring 31 in the reverse direction so that the first plugging ring 32 plugs the filter cartridge 03 and the second plugging ring 33 plugs the filter ring 21. The impurities in the filter holes enter between the first plugging ring 32 and the second plugging ring 33 under the action of water pressure. Since the lengths of the plugging assembly 3 and the collecting assembly 2 are less than the length of the filter cartridge 03, while cleaning the impurities, the positions where the impurities are not cleaned can still filter the liquid.

[0046] Refer to Figures 1 to 8 As shown in [reference figure], the control assembly 5 includes a first control rod 51 fixed on the connecting ring 31, a second control rod 52 sleeved on the first control rod 51, a large gear ring 53 rotatably connected to the cylinder body 02, and a gear 54 rotatably connected to the cylinder body 02. The second control rod 52 is rotatably connected to the large gear ring 53. The gear 54 and the large gear ring 53 are meshed. The large gear ring 53 is set as an incomplete tooth structure. At the same time, a control motor 55 is arranged on the cylinder body 02. The output shaft of the control motor 55 is connected to the gear 54. The gear 54 is driven by the control motor 55 to rotate, and then the gear 54 drives the large gear ring 53 to rotate, thereby driving the connecting ring 31 to rotate to adjust the positions of the first plugging ring 32 and the second plugging ring 33. Then the first plugging ring 32 can plug the filter holes on the filter cartridge 03, and the second plugging ring 33 can plug the filter holes on the filter ring 21. In this embodiment, two first control rods 51 and two second control rods 52 are provided. Then when the large gear ring 53 rotates, the second control rod 52 and the first control rod 51 rotate more stably.

[0047] Refer to Figures 2 to 4, the cross-section of the second control rod 52 is set to be rectangular, and when the plugging assembly 3 moves, the first control rod 51 can slide on the second control rod 52. In addition, the first control rod 51 is inserted through the collecting ring 24. Since the first control rod 51 and the second control rod 52 need to rotate, a moving groove 6 for the second control rod 52 to rotate is provided on the mounting ring 08. At the same time, a mounting sleeve 61 is arranged in the moving groove 6. The mounting sleeve 61 is rotatably connected to the second control rod 52. At the same time, sealing elastic pieces 62 are arranged on both sides of the mounting sleeve 61. During the process of the mounting sleeve 61 sliding in the moving groove 6, the sealing elastic pieces 62 will deform to a certain extent, and then seal the moving groove 6.

[0048] Refer to Figures 1 to 4 , an external thread is provided on one of the first control rods 51, and the collecting ring 24 is threadedly connected to the first control rod 51 with the external thread. In addition, a connecting pipe (not shown in the figure) is installed at the bottom of the collecting ring 24. The connecting pipe communicates with the cavity between the first plugging ring 32 and the second plugging ring 33, and a filter screen is arranged in the connecting pipe. The pore diameter of the filter screen is smaller than the pore diameter of the filter holes of the filter cylinder 03; at the same time, a one-way valve is arranged on the connecting pipe, which can make the liquid between the first plugging ring 32 and the second plugging ring 33 drain through the connecting pipe, and the liquid outside the filter cylinder 03 cannot enter between the first plugging ring 32 and the second plugging ring 33 through the connecting pipe.

[0049] A servo motor (not shown in the figure) is arranged on the mounting block 22. The output shaft of the servo motor is fixedly connected to the second control rod 52. When the impurities in the filter holes on the filter cylinder 03 are washed between the first plugging ring 32 and the second plugging ring 33, the first plugging ring 32 and the second plugging ring 33 are rotated in the reverse direction to block both the filter holes on the filter cylinder 03 and the filter holes on the filtering ring 21. Then, the second control rod 52 is driven to rotate by the servo motor, and the first control rod 51 is driven to rotate by the second control rod 52. Since an external thread is provided on one of the first control rods 51, at this time, the collecting ring 24 can be driven to move towards the connecting ring 31 to squeeze the liquid between the first plugging ring 32 and the second plugging ring 33. At this time, the liquid can be discharged through the connecting pipe, and the impurities between the first plugging ring 32 and the second plugging ring 33 will remain between the first plugging ring 32 and the second plugging ring 33.

[0050] Refer to Figures 2 to 8, a material suction assembly 7 is provided on the cylinder body 02. The material suction assembly 7 includes a fixed pipe 71 fixed on the cylinder body 02, a moving pipe 72 slidably connected to the fixed pipe 71, and a self-priming pump connected to the fixed pipe 71. The self-priming pump is fixed on the cylinder body 02. In this embodiment, both the fixed pipe 71 and the moving pipe 72 are provided as flexible pipes, and the moving pipe 72 is fixed on the connecting ring 31. At the same time, the moving pipe 72 communicates with the cavity between the first sealing ring 32 and the second sealing ring 33. When the collecting ring 24 moves towards the connecting ring 31, after the liquid is squeezed out, the impurities are sucked out from the collecting ring 24 through the moving pipe 72 and the fixed pipe 71 by the suction force generated by the self-priming pump, so as to achieve the purpose of cleaning the impurities between the first sealing ring 32 and the second sealing ring 33.

[0051] After the first cleaning plate 12 finishes cleaning the first half of the filter cylinder 03, the first sealing ring 32 and the second sealing ring 33 are rotated in the reverse direction to open the filter holes on the filter cylinder 03, and then the filter holes on the filtering ring 21 are also opened, so as to achieve the purpose of continuing to filter the liquid. When it is necessary to clean the second half of the filter cylinder 03, the driving cylinder 23 drives the collecting assembly 2 and the sealing assembly 3 to move. The first control rod 51 slides on the second control rod 52 and moves to the position corresponding to the second cleaning plate 14. Then the first sealing ring 32 and the second sealing ring 33 are rotated to block the filter holes on the filter cylinder 03 and the filtering ring 21. The driving device drives the second cleaning plate 14 to rotate, and the second cleaning plate 14 cleans the impurities on the inner wall of the filter cylinder 03. The working principle of cleaning the second half of the filter cylinder 03 is the same as that of cleaning the first half of the filter cylinder 03, and the specific working principle of cleaning the second half of the filter cylinder 03 will not be elaborated in detail here. When cleaning the second half of the filter cylinder 03, the first half of the filter cylinder 03 can still filter the liquid.

[0052] Refer to Figures 2 to 10, the driving device includes a driving motor 8 fixed on the cylinder body 02 and a linkage assembly 4 arranged on the driving motor 8. The linkage assembly 4 includes a first linkage block 41 fixed on the first cleaning shaft 11, a second linkage block 42 fixed on the second cleaning shaft 13, a linkage cylinder 43 fixed on the cylinder body 02, and a linkage shaft 44 rotatably connected to the linkage cylinder 43. The linkage shaft 44 is slidably connected to the output shaft of the driving motor 8. The first linkage block 41 and the second linkage block 42 have the same structure and are both arranged in a hexagonal prism structure. At the same time, a linkage groove 45 is formed on the linkage shaft 44, and the cross-section of the linkage groove 45 is hexagonal. When the linkage cylinder 43 drives the linkage shaft 44 to move, at this time, the linkage shaft 44 also slides on the output shaft of the driving motor 8. Then, when the first linkage block 41 is located in the linkage groove 45 and the second linkage block 42 is disengaged from the linkage groove 45, the driving motor 8 rotates to drive the first cleaning shaft 11 and the first cleaning plate 12 to rotate, so as to clean the first half of the filter cartridge 03; when the second linkage block 42 is located in the linkage groove 45 and the first linkage block 41 is disengaged from the linkage groove 45, the driving motor 8 rotates to drive the second cleaning shaft 13 and the second cleaning plate 14 to rotate, so as to clean the second half of the filter cartridge 03.

[0053] The implementation principle of a solid-liquid separation device according to an embodiment of the present application is as follows: When it is necessary to clean the inner wall of the filter cartridge 03, first rotate the connecting ring 31. The connecting ring 31 drives the first sealing ring 32 and the second sealing ring 33 to rotate, so that the first sealing ring 32 seals the first half of the filter cartridge 03, and the second sealing ring 33 seals the filter ring 21. Then, the first cleaning shaft 11 drives the first cleaning plate 12 to rotate to clean the first half of the filter cartridge 03. Since the first sealing ring 32 seals the filter cartridge 03, the squeezed impurities will not pass through the filter cartridge 03 at this time. Some impurities will only enter the filter holes. After the cleaning is completed, the first cleaning plate 12 stops rotating. Then, continue to rotate the first sealing ring 32 and the second sealing ring 33. The first sealing ring 32 no longer seals the filter cartridge 03, and the second sealing ring 33 continues to seal the filter ring 21. Then, when the liquid flows, the squeezed impurities in the filter holes will be washed between the first sealing ring 32 and the second sealing ring 33. Finally, rotate the connecting ring 31 in the reverse direction, so that the first sealing ring 32 seals the filter cartridge 03, and the second sealing ring 33 seals the filter ring 21. Finally, by moving the collecting ring 24, the liquid between the first sealing ring 32 and the second sealing ring 33 is discharged through the connecting pipe, and the squeezed juice is discharged through the self-priming pump, thereby improving the filtering effect of the liquid.

[0054] After the first cleaning plate 12 finishes cleaning, the driving cylinder 23 drives the collection assembly 2 and the blocking assembly 3 to move downward. The first control rod 51 slides on the second control rod 52, causing the driving device to drive the second cleaning plate 14 to rotate. At this time, the impurities in the latter half of the filter cartridge 03 are cleaned by the collection assembly 2, the blocking assembly 3 and the second cleaning plate 14, so as to achieve the purpose of continuous filtering while cleaning.

[0055] Second aspect: A solid-liquid separation method includes the following steps: S1: When the cleaning assembly 1 cleans the impurities on the inner wall of the filter cartridge 03, the collection assembly 2 and the blocking assembly 3 are made to correspond to the position of the filter cartridge 03 corresponding to the first cleaning shaft 11; S2: The connecting ring 31 drives the first blocking ring 32 and the second blocking ring 33 to rotate to block the filter holes on the filter cartridge 03 and the filter ring 21; S3: After cleaning, the filter holes on the filter cartridge 03 are opened, and the filter holes on the filter ring 21 remain blocked; S4: The impurities in the filter holes on the filter cartridge 03 enter between the first blocking ring 32 and the second blocking ring 33, blocking the filter holes on the filter cartridge 03.

[0056] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of this application should be covered within the protection scope of this application.

Claims

1. A solid-liquid separation device, comprising a frame (01), a cylinder body (02) arranged on the frame (01), and a filter cartridge (03) arranged inside the cylinder body (02), wherein a cleaning assembly (1) for cleaning impurities on the inner wall of the filter cartridge (03) is arranged on the cylinder body (02), and it is characterized in that: A collection component (2) for collecting extruded impurities is provided inside the cylinder body (02), and a blocking component (3) for blocking the filter cartridge (03) and the collection component (2) is provided inside the cylinder body (02); the collection component (2) includes a filter ring (21) slidably connected to the inner wall of the cylinder body (02), a mounting block (22) provided on the filter ring (21), a driving cylinder (23) fixed to the mounting block (22), and a collection ring (24) provided between the filter ring (21) and the filter cartridge (03). The driving cylinder (23) is fixed to the cylinder body (02), and the driving cylinder (23) is used to drive the collection component (2) and the blocking component (3) to move along the axial direction of the filter cartridge (03). The collection ring (24) and the mounting block (22) are provided at opposite ends of the filter ring (21); the blocking component (3) includes a connecting ring (31) rotatably connected to the mounting block (22), a first blocking ring (32) fixed to the connecting ring (31), and a second blocking ring (33) fixed to the connecting ring (31). The first blocking ring (32) abuts against the outer wall of the filter cartridge (03) and is used to block the filter cartridge (03), and the second blocking ring (33) abuts against the inner wall of the filter ring (21) and is used to block the filter ring (21).

2. The solid-liquid separation device according to claim 1, wherein: The cleaning component (1) includes a first cleaning shaft (11) rotatably connected to the cylinder body (02), a first cleaning plate (12) fixed to the first cleaning shaft (11), a second cleaning shaft (13) rotatably connected to the first cleaning shaft (11), and a second cleaning plate (14) fixed to the second cleaning shaft (13). The first cleaning plate (12) and the second cleaning plate (14) both abut against the inner wall of the filter cartridge (03), and the second cleaning shaft (13) passes through the first cleaning shaft (11). A driving device for driving the first cleaning shaft (11) or the second cleaning shaft (13) to rotate is provided on the cylinder body (02), and the length of the blocking component (3) is less than the length of the filter cartridge (03).

3. The solid-liquid separation device according to claim 2, wherein: The driving device includes a driving motor (8) fixed to the cylinder body (02) and a linkage component (4) provided on the driving motor (8); the linkage component (4) includes a first linkage block (41) fixed to the first cleaning shaft (11), a second linkage block (42) fixed to the second cleaning shaft (13), a linkage cylinder (43) fixed to the cylinder body (02), and a linkage shaft (44) rotatably connected to the linkage cylinder (43). A linkage groove (45) for inserting the first linkage block (41) or the second linkage block (42) is provided on the linkage shaft (44), and the linkage shaft (44) is slidably connected to the output shaft of the driving motor (8).

4. A solid-liquid separation device according to claim 3, characterized in that: A control assembly (5) for driving the connection ring (31) to rotate is provided on the cylinder body (02). The control assembly (5) includes a first control rod (51) fixed on the connection ring (31), a second control rod (52) inserted through the first control rod (51), a large gear ring (53) rotatably connected to the cylinder body (02), and a gear (54) rotatably connected to the cylinder body (02). The second control rod (52) is rotatably connected to the large gear ring (53). The gear (54) and the large gear ring (53) are meshed. A control motor (55) is provided on the cylinder body (02). The output shaft of the control motor (55) is connected to the gear (54). The first control rod (51) slides on the second control rod (52), and the first control rod (51) is inserted through the collection ring (24).

5. The solid-liquid separation device according to claim 4, characterized in that: External threads are provided on one of the first control rods (51). The collection ring (24) is threadedly connected to the first control rod (51) with external threads. A connection pipe is installed on the collection ring (24). The connection pipe communicates with the cavity between the first sealing ring (32) and the second sealing ring (33). A filter screen is provided in the connection pipe. The pore diameter of the filter screen is smaller than the pore diameter of the filter cartridge (03). A check valve is provided on the connection pipe.

6. The solid-liquid separation device according to claim 5, wherein: A material suction assembly (7) is provided on the cylinder body (02). The material suction assembly (7) includes a fixed pipe (71) fixed on the cylinder body (02), a moving pipe (72) slidably connected to the fixed pipe (71), and a self-priming pump connected to the fixed pipe (71). The moving pipe (72) is fixed on the connection ring (31). The moving pipe (72) communicates with the cavity between the first sealing ring (32) and the second sealing ring (33).

7. The solid-liquid separation device according to claim 6, characterized in that: An installation ring (08) is provided on the filter cartridge (03). A support ring (07) for supporting the installation ring (08) is provided on the inner wall of the cylinder body (02).

8. The solid-liquid separation device according to claim 7, wherein: A moving groove (6) for the second control rod (52) to rotate is formed on the installation ring (08). An installation sleeve (61) is provided in the moving groove (6). The installation sleeve (61) is rotatably connected to the second control rod (52). Sealing elastic sheets (62) are provided on both sides of the installation sleeve (61).

9. A solid-liquid separation device according to claim 4, characterized in that: Both the first control rod (51) and the second control rod (52) are provided in two numbers.

10. A solid-liquid separation method, characterized in that: Using a solid-liquid separation device according to claim 2 above, includes the following steps: S1: When the cleaning assembly (1) cleans the impurities on the inner wall of the filter cartridge (03), the collection assembly (2) and the blocking assembly (3) are positioned corresponding to the position of the filter cartridge (03) corresponding to the first cleaning shaft (11). S2: The connection ring (31) drives the first sealing ring (32) and the second sealing ring (33) to rotate to block the filter holes on the filter cartridge (03) and the filter ring (21). S3: After the cleaning is completed, the filter holes on the filter cartridge (03) are opened, and the filter holes on the filter ring (21) remain blocked. S4: Impurities in the filter holes on the filter cartridge (03) enter between the first sealing ring (32) and the second sealing ring (33), blocking the filter holes on the filter cartridge (03).

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