Energy-saving and emission-reducing water return device for corrugated board production

Abstract

The invention relates to the technical field of paperboard production, and provides an energy-saving and emission-reducing water return device for corrugated paperboard production, which comprises a filter tank, an ozone generator and an electric cabinet, the ozone generator is connected with the filter tank through a connecting pipe on the ozone generator, and the electric cabinet is connected with the filter tank through a connecting pipe on the ozone generator. A water return assembly is arranged on one side of the filter tank, and the filter pressing assembly is driven by the second driving assembly to descend, so that filter pressing can be performed on impurities such as fibers, paper pulp and the like left after filtration on the filter cartridge and the supporting disc, the inner wall of the filter cartridge can be cleaned, and then the lifting assembly drives the supporting disc to descend; according to the filter press, the filter-pressed impurities can be taken out from the filter cartridge, so that a lot of time is not required to be spent by workers for fishing, the labor intensity of the workers can be reduced, the cleaning efficiency can be improved, and meanwhile, the workers do not need to work in a humid environment which possibly contains harmful gas for a long time.

Description

Technical Field

[0001] The invention relates to the technical field of paperboard production, and in particular to an energy-saving, emission-reducing and water-returning device for corrugated paperboard production. Background Art

[0002] Corrugated cardboard is a multi-layer adhesive body, which is composed of at least one layer of corrugated core paper and one layer of cardboard. It has high mechanical strength and can withstand collisions and falls during transportation. The actual performance of corrugated cardboard depends on three factors: the characteristics of the core paper and cardboard and the structure of the carton itself.

[0003] It is known that Chinese patent CN210481078U discloses an energy-saving and emission-reducing water return system for corrugated cardboard production, which specifically relates to the technical field of cardboard production equipment, including a base plate, a filter chamber is arranged on the top surface of the base plate, and a collecting chamber is arranged on the side of the top surface of the base plate close to the filter chamber, an electric control box is arranged on the rear side of the collecting chamber, a rotating shaft is installed inside the filter chamber, and a reduction motor is fixedly arranged on the rear side wall of the filter chamber. The utility model is provided with a primary filter screen, a first filter assembly and a second filter assembly, the primary filter screen can filter impurities in the wastewater, wherein the first filter assembly and the second filter assembly can be taken out separately without affecting the filtering use, a slide seat, a brush and a limit rod are arranged, the slide seat can slide on the circumferential side outer wall of the limit rod to ensure the stability of the slide seat when sliding, and the brush can sweep and scrape the bottom of the filter chamber to facilitate the cleaning of impurity precipitation.

[0004] However, in the implementation of relevant technologies, it was found that the above scheme has the following problems: high safety risks, floating fibers and other impurities require a lot of time to be salvaged manually, which not only increases the labor intensity of workers but also affects efficiency, and long-term work in a humid environment that may contain harmful gases can easily lead to health problems. Summary of the invention

[0005] The present invention proposes an energy-saving, emission-reducing and water-returning device for corrugated cardboard production, which solves the problems in the related technology of high safety risks, floating fibers and other impurities requiring a lot of time to be manually salvaged, thereby increasing the labor intensity of workers and affecting efficiency, and working for a long time in a humid environment that may contain harmful gases is likely to cause health problems.

[0006] The technical solution of the present invention is as follows: an energy-saving and emission-reducing water return device for corrugated cardboard production, comprising a filter tank, an ozone generator and an electric control box, wherein the ozone generator is connected to the filter tank through a connecting pipe thereon;

[0007] A water return component is provided on one side of the filter pool, and the input end of the water return component is connected to the filter pool, and the output end of the water return component is connected to an external collection pool;

[0008] A separation shell is provided on one side of the filter pool away from the water return assembly, a fixed shell is provided through the top of the separation shell, and the fixed shell is rotatably connected to the separation shell, a filter cartridge is fixedly installed on the inner side wall of the fixed shell, and a support plate is provided on the bottom wall of the filter cartridge;

[0009] A plug-in mechanism is provided on the inner side of the filter cartridge near the bottom, and the plug-in mechanism is plugged into the support plate;

[0010] A lifting assembly is provided on the legs of the separation shell, and the support plate is rotatably connected to the lifting assembly;

[0011] A fixing frame is fixedly installed on the top of the separation shell, a water inlet pipe is penetrated through the fixing frame, a drain pipe is fixedly installed on the bottom wall of the separation shell, and the other end of the drain pipe is connected to the filter tank;

[0012] The fixing frame is provided with a second driving assembly and a first driving assembly respectively, the second driving assembly is provided with a filter press assembly, and the first driving assembly is connected to the fixing shell;

[0013] The filter pool is provided with a mounting assembly, and the mounting assembly is respectively provided with a filtering assembly and a cleaning assembly.

[0014] Through the above technical scheme, the impurities such as fibers and pulp remaining after filtration can be centrifuged, filtered and removed, and the inner wall of the filter cartridge can be cleaned, so there is no need to spend a lot of time on salvaging manually, which can reduce the labor intensity of workers and improve the cleaning efficiency. At the same time, workers do not need to work for a long time in a humid environment that may contain harmful gases.

[0015] Preferably, the plug-in mechanism comprises four plug-in blocks arranged in a cross shape and fixedly mounted on the inner wall of the filter cartridge, the top of the support plate is provided with four plug-in grooves arranged in a cross shape, and the plug-in blocks are plugged into the plug-in grooves.

[0016] The above technical solution ensures that the rotating filter cartridge can drive the support disk to rotate synchronously.

[0017] Preferably, the lifting assembly includes a fixed plate fixedly mounted on the filter tank legs, a cylinder is fixedly mounted on the bottom wall of the fixed plate, and the support plate is rotatably mounted on the output end of the cylinder, and a sealing ring is provided on the outer side of the support plate.

[0018] Through the above technical solution, the impurities that have been filtered can be taken out of the filter cartridge, which is convenient for manual cleaning. At the same time, the sealing effect between the support plate and the separation shell can be improved to prevent wastewater from flowing out of the gap between the support plate and the separation shell when the impurities on the support plate are filtered.

[0019] Preferably, the first driving assembly includes a first motor fixedly mounted on the inner top wall of the fixed frame via a motor frame, a gear is fixedly mounted on the output end of the first motor, an outer gear ring is fixedly mounted on the outer side wall of the fixed shell, and the gear is meshingly connected with the outer gear ring.

[0020] Through the above technical solution, the fixed shell can be driven to rotate, so that the filter cartridge and the support disk can rotate synchronously, and then the impurities such as fibers and pulp remaining on the support disk after filtering can be centrifugally separated.

[0021] Preferably, the second driving assembly comprises a threaded rod and a limit rod mounted on the top of the fixing frame, and the threaded rod is rotatably mounted on the fixing frame;

[0022] A second motor is fixedly mounted on the inner top wall of the fixing frame via a second motor frame, and an output end of the second motor is fixedly connected to the threaded rod.

[0023] Through the above technical solution, the filter press assembly threaded thereon can be stably driven to descend, thereby being able to filter the impurities on the support plate.

[0024] Preferably, the filter press assembly comprises a rectangular plate arranged on the threaded rod and the limiting rod, and the rectangular plate is threadedly connected to the threaded rod, two fixing columns are fixedly installed at the bottom of the rectangular plate, and a pressure plate is fixedly installed at the bottom of the two fixing columns;

[0025] A belt brush is fixedly mounted on the outer wall of the pressure plate, and the belt brush is in contact with the filter cartridge.

[0026] Through the above technical solution, the impurities on the support plate can be filtered and the inner wall of the filter cartridge can be cleaned.

[0027] Preferably, the cleaning assembly comprises two electric telescopic rods fixedly mounted on the top of the mounting assembly, a fixing plate is fixedly mounted on the top of the two electric telescopic rods, four U-shaped frames are arranged between the two fixing plates, and both sides of the four U-shaped frames are fixedly connected to the fixing plates symmetrically arranged therebetween;

[0028] One side of the four U-shaped frames is fixedly mounted with a brush, and the four brushes are arranged in pairs and are opposed to each other.

[0029] Through the above technical solution, the surface of the filter screen can be cleaned, thereby preventing the filter holes on the filter component from being clogged when the return water component transports the filtered wastewater to the external collection tank, resulting in a reduction in the filtering effect.

[0030] Preferably, the mounting assembly comprises a mounting frame arranged on the filter tank, the top of the mounting frame is provided with two cross grooves, and the filter assembly is plugged into the inner side of the cross grooves;

[0031] Both sides of the mounting frame are threadedly connected with hand screws, and the screw ends of the hand screws are in contact with the filter pool.

[0032] Through the above technical solution, the filter assembly can be stably fixed on the filter tank for use.

[0033] Preferably, the filter assembly includes two filter screens, and a strip plate is fixedly installed on the top of the two filter screens, and the two strip plates are respectively inserted into the inner sides of the two cross grooves;

[0034] The mounting frame and the two strip plates are both provided with communicating circular holes, and a plug-in rod is plugged into the inner side of the circular hole.

[0035] Through the above technical solution, the water flowing from the filter tank to the return water component can be filtered for the second time, and the filter net can be fixed, thereby preventing the cleaning component from driving the filter net to move upward when cleaning the filter net.

[0036] Preferably, the water return assembly comprises a water pump arranged at one side of the filter tank, an extraction pipe is fixedly installed at the input end of the water pump, and the other end of the extraction pipe is connected to the filter tank;

[0037] A delivery pipe is fixedly installed at the output end of the water pump, and the other end of the delivery pipe is connected to an external collection tank.

[0038] Through the above technical solution, the wastewater treated in the filter tank can be transported to an external collection tank so that it can be reused.

[0039] The working principle and beneficial effects of the present invention are:

[0040] 1. The filter press assembly is driven to descend by the second driving assembly, so that the impurities such as fibers and pulp remaining on the filter cartridge and the support plate after filtration can be filtered and the inner wall of the filter cartridge can be cleaned. Then the lifting assembly drives the support plate to descend, so that the filtered impurities can be taken out of the filter cartridge, and there is no need for manual labor to spend a lot of time on salvaging. It can reduce the labor intensity of workers and improve the cleaning efficiency. At the same time, workers do not need to work for a long time in a humid environment that may contain harmful gases.

[0041] 2. The fixed shell and the filter cartridge are driven to rotate by the first driving assembly, and then the filter cartridge drives the support plate with the cooperation of the plug-in mechanism, so that the impurities before the filter press can be centrifugally separated, thereby effectively improving the solid-liquid separation effect.

[0042] 3. The electric telescopic rod is used to drive the fixed plate and the U-shaped frame to rise and fall, so that the brush can clean the surface of the filter screen, thereby preventing the filter holes on the filter screen from being blocked when the return water component transports the filtered wastewater to the external collection tank, resulting in a reduction in the filtering effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] Figure 1 It is a schematic diagram of the overall structure proposed by the present invention;

[0045] Figure 2 A schematic diagram of the structure of the separation shell proposed for the present invention;

[0046] Figure 3 A schematic cross-sectional view of the separation shell provided by the present invention;

[0047] Figure 4 The present invention provides a schematic structural diagram of a filter press assembly;

[0048] Figure 5 The present invention proposes Figure 3 A is an enlarged structural diagram;

[0049] Figure 6 A schematic diagram of the structure of the lifting assembly proposed in the present invention;

[0050] Figure 7 A schematic diagram of the structure of the cleaning component proposed by the present invention;

[0051] Figure 8 The present invention provides a structural schematic diagram of the installation assembly.

[0052] In the figure: 1. Filter tank; 2. Ozone generator; 3. Electric control box;

[0053] 4. Water return assembly; 41. Water pump; 42. Extraction pipe; 43. Delivery pipe;

[0054] 5. Separation shell; 6. Fixed shell; 7. Filter cartridge; 8. Support plate;

[0055] 9. Lifting assembly; 91. Fixed plate; 92. Cylinder;

[0056] 10. Fixed frame;

[0057] 11. second driving assembly; 1101. threaded rod; 1102. limit rod; 1103. second motor;

[0058] 12. filter press assembly; 1201. rectangular plate; 1202. fixed column; 1203. pressure plate; 1204. belt brush;

[0059] 13. First drive assembly; 1301. First motor; 1302. Gear; 1303. External gear ring;

[0060] 14. Installation assembly; 1401. Installation bracket; 1402. Cross slot; 1403. Thumb screw;

[0061] 15. Filter assembly; 1501. Filter screen; 1502. Strip plate; 1503. Connecting rod;

[0062] 16. Cleaning assembly; 1601. Electric telescopic rod; 1602. Fixing plate; 1603. U-shaped frame; 1604. Brush;

[0063] 17. Plug-in block; 18. Plug-in slot; 19. Sealing ring. DETAILED DESCRIPTION

[0064] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0065] Embodiment 1

[0066] See also Figure 1 - Figure 8 , an energy-saving and emission-reducing water return device for corrugated cardboard production, comprising a filter tank 1, an ozone generator 2 and an electric control box 3, wherein the ozone generator 2 is connected to the filter tank 1 through a connecting pipe thereon;

[0067] A water return component 4 is provided on one side of the filter pool 1, and the input end of the water return component 4 is connected to the filter pool 1, and the output end of the water return component 4 is connected to the external collection pool;

[0068] A separation shell 5 is provided on one side of the filter tank 1 away from the water return assembly 4, a fixed shell 6 is provided through the top of the separation shell 5, and the fixed shell 6 is rotatably connected to the separation shell 5, a filter cartridge 7 is fixedly installed on the inner side wall of the fixed shell 6, and a support plate 8 is provided on the bottom wall of the filter cartridge 7;

[0069] A plug-in mechanism is provided on the inner side of the filter cartridge 7 near the bottom, and the plug-in mechanism is plugged into the support plate 8;

[0070] A lifting assembly 9 is provided on the legs of the separation shell 5, and the support plate 8 is rotatably connected to the lifting assembly 9;

[0071] A fixing frame 10 is fixedly installed on the top of the separation shell 5, and a water inlet pipe is penetrated through the fixing frame 10. A drainage pipe is fixedly installed on the bottom wall of the separation shell 5, and the other end of the drainage pipe is connected to the filter tank 1;

[0072] The second driving assembly 11 and the first driving assembly 13 are respectively arranged on the fixing frame 10 , the filter press assembly 12 is arranged on the second driving assembly 11 , and the first driving assembly 13 is connected to the fixing shell 6 .

[0073] The present invention provides an energy-saving and emission-reducing water return device for corrugated cardboard production. When in use, waste water enters the filter cartridge 7 and the support plate 8 in the separation shell 5 through the water inlet pipe on the fixed frame 10, and can be initially filtered through the filter cartridge 7. The filtered waste water is transported to the filter pool 1 from the drainage pipe at the bottom of the separation shell 5, and then the first driving component 13 is started to drive the fixed shell 6 and the filter cartridge 7 to rotate, and then the rotating filter cartridge 7 drives the support plate 8 with the cooperation of the plug-in mechanism, so that the impurities such as fiber and pulp remaining after filtration on the filter cartridge 7 and the support plate 8 can be centrifugally separated, and then the second driving component 11 is started to drive the filter press component 12 to descend, so that the filter press component 12 can both filter and filter. The fibers, pulp and other impurities remaining after filtration on the cylinder 7 and the support plate 8 are filtered, and the inner wall of the filter cylinder 7 can be cleaned, which effectively improves the solid-liquid separation effect. After the filtration is completed, the lifting component 9 is started to drive the support plate 8 to descend, so that the impurities that have been filtered can be taken out of the filter cylinder 7, and there is no need to spend a lot of time on manual salvage, which can not only reduce the labor intensity of workers, but also improve the cleaning efficiency. At the same time, workers do not need to work for a long time in a humid environment that may contain harmful gases. Then start the ozone generator 2 to sterilize and disinfect the wastewater in the filter pool 1 to achieve the effect of eliminating odor and purification. Finally, the treated wastewater is transported to the external collection pool through the return water component 4 for reuse.

[0074] Furthermore, the plug-in mechanism includes four plug-in blocks 17 arranged in a cross shape and fixedly mounted on the inner wall of the filter cartridge 7 , and four plug-in slots 18 are arranged in a cross shape on the top of the support plate 8 , and the plug-in blocks 17 are plugged into the plug-in slots 18 .

[0075] Specifically, through the plug-in block 17 and the plug-in slot 18, when the first drive assembly 13 drives the fixed shell 6 and the filter cartridge 7 thereon to rotate, the filter cartridge 7 can synchronously drive the support plate 8 to rotate, thereby centrifugally separating impurities such as fibers and pulp remaining on the support plate 8 after filtration.

[0076] Furthermore, the lifting assembly 9 includes a fixed plate 91 fixedly mounted on the legs of the filter tank 1, a cylinder 92 is fixedly mounted on the bottom wall of the fixed plate 91, and a support plate 8 is rotatably mounted on the output end of the cylinder 92, and a sealing ring 19 is sleeved on the outer side of the support plate 8.

[0077] It should also be noted that the support plate 8 is in an inverted T-shape, and the sealing ring 19 is located between the support plate 8 and the separation shell 5 .

[0078] Specifically, the supporting plate 8 is driven downward by the contracting cylinder 92, so that the impurities filtered out of the filter cartridge 7 can be taken out for manual cleaning. At the same time, the sealing ring 19 is passed through to improve the sealing effect between the supporting plate 8 and the separation shell 5, thereby preventing the wastewater from flowing out of the gap between the supporting plate 8 and the separation shell 5 when the impurities on the supporting plate 8 are filtered.

[0079] Furthermore, the first drive assembly 13 includes a first motor 1301 fixedly mounted on the inner top wall of the fixed frame 10 through a motor frame, a gear 1302 is fixedly mounted on the output end of the first motor 1301, an outer gear ring 1303 is fixedly mounted on the outer wall of the fixed shell 6, and the gear 1302 is meshingly connected with the outer gear ring 1303.

[0080] Specifically, the first motor 1301 drives the gear 1302 to rotate, and then the rotating gear 1302 can drive the fixed shell 6 to rotate through the outer ring gear 1303 meshing with it, so that the filter cartridge 7 and the support plate 8 can rotate synchronously, and then the impurities such as fibers and pulp remaining on the support plate 8 after filtering can be centrifugally separated.

[0081] Further, the second driving assembly 11 includes a threaded rod 1101 and a limit rod 1102 mounted on the top of the fixing frame 10, and the threaded rod 1101 is rotatably mounted on the fixing frame 10;

[0082] A second motor 1103 is fixedly mounted on the inner top wall of the fixing frame 10 via a second motor frame, and an output end of the second motor 1103 is fixedly connected to the threaded rod 1101 .

[0083] Specifically, the threaded rod 1101 is driven to rotate by the second motor 1103, and then the rotating second motor 1103 can stably drive the filter press assembly 12 threaded thereon to descend under the cooperation of the limiting rod 1102, thereby filtering the impurities on the support plate 8.

[0084] It should also be noted that a limiting plate is fixedly installed on the outer wall of the limiting rod 1102, and the limiting plate is located above the filter press assembly 12 to prevent the filter press assembly 12 from rising too high when the threaded rod 1101 drives the filter press assembly 12 to rise and cause the filter press assembly 12 to fall off the threaded rod 1101.

[0085] Further, the filter press assembly 12 includes a rectangular plate 1201 disposed on the threaded rod 1101 and the limiting rod 1102, and the rectangular plate 1201 is threadedly connected to the threaded rod 1101, and two fixing columns 1202 are fixedly installed at the bottom of the rectangular plate 1201, and a pressure plate 1203 is fixedly installed at the bottom of the two fixing columns 1202;

[0086] A belt brush 1204 is fixedly mounted on the outer wall of the pressure plate 1203 , and the belt brush 1204 is in contact with the filter cartridge 7 .

[0087] Specifically, the rotating threaded rod 1101 drives the rectangular plate 1201 to descend, and then the descending rectangular plate 1201 drives the pressure plate 1203 on the inner side of the filter cartridge 7 to descend synchronously through the fixed column 1202, so that the pressure plate 1203 can filter the impurities on the support plate 8, and the belt brush 1204 can clean the inner wall of the filter cartridge 7.

[0088] Furthermore, the water return assembly 4 includes a water pump 41 disposed on one side of the filter tank 1, an extraction pipe 42 is fixedly installed at the input end of the water pump 41, and the other end of the extraction pipe 42 is connected to the filter tank 1;

[0089] A delivery pipe 43 is fixedly installed at the output end of the water pump 41 , and the other end of the delivery pipe 43 is connected to an external collection tank.

[0090] Specifically, the treated wastewater in the filter tank 1 is extracted through the water pump 41 and the extraction pipe 42, and then the extracted water is transported to the external collection tank through the delivery pipe 43, so that it can be reused.

[0091] Embodiment 2

[0092] Based on the first embodiment, in the present embodiment: a mounting assembly 14 is provided on the filter pool 1, a filtering assembly 15 and a cleaning assembly 16 are respectively provided on the mounting assembly 14, the cleaning assembly 16 comprises two electric telescopic rods 1601 fixedly installed on the top of the mounting assembly 14, a fixing plate 1602 is fixedly installed on the top of the two electric telescopic rods 1601, four U-shaped frames 1603 are provided in the middle of the two fixing plates 1602, and both sides of the four U-shaped frames 1603 are fixedly connected to the symmetrical fixing plates 1602, and a brush 1604 is fixedly installed on one side of the four U-shaped frames 1603, and the four brushes 1604 are opposed to each other in pairs.

[0093] The technical solution provided by this embodiment is: by installing the component 14, the filter component 15 is fixed on the filter tank 1, so that the water can be filtered for the second time, and then the fixing plate 1602 and the U-shaped frame 1603 are driven to rise and fall by the electric telescopic rod 1601, so that the brush 1604 can clean the surface of the filter component 15, thereby preventing the filter holes on the filter component 15 from being blocked when the filtered wastewater is transported to the external collection tank by the return water component 4, resulting in a reduction in the filtering effect.

[0094] Furthermore, the mounting assembly 14 includes a mounting frame 1401 disposed on the filter tank 1, and two cross grooves 1402 are provided on the top of the mounting frame 1401, and the filter assembly 15 is plugged into the inner side of the cross groove 1402;

[0095] Both sides of the mounting frame 1401 are threadedly connected with hand screws 1403 , and the screw ends of the hand screws 1403 are in contact with the filter pool 1 .

[0096] Specifically, the mounting frame 1401 is manually clamped on the filter pool 1, and then the hand screw 1403 threaded thereon is rotated, and the screw end of the hand screw 1403 is made to contact with the filter pool 1, so that the mounting frame 1401 and the filter assembly 15 inserted in the cross groove 1402 can be stably fixed on the filter pool 1 for use.

[0097] Furthermore, the filter assembly 15 includes two filter screens 1501, and a strip plate 1502 is fixedly installed on the top of the two filter screens 1501, and the two strip plates 1502 are respectively inserted into the inner side of the cross groove 1402;

[0098] The mounting frame 1401 and the two strip plates 1502 are provided with communicating circular holes, and a plug-in rod 1503 is plugged into the inner side of the circular hole.

[0099] Specifically, the water flowing from the filter pool 1 to the return water component 4 can be filtered for the second time through the filter net 1501. After that, the plug-in rod 1503 is manually inserted into the circular hole connected to the mounting frame 1401 and the strip plate 1502, so that the filter net 1501 can be fixed, thereby preventing the cleaning component 16 from driving the filter net 1501 to move upward when cleaning the filter net 1501.

[0100] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A water return device for energy saving and emission reduction in corrugated cardboard production, comprising a filter tank (1), an ozone generator (2) and an electric control box (3), characterized in that: The ozone generator (2) is connected to the filter tank (1) via a connecting pipe thereon; A water return component (4) is provided on one side of the filter pool (1), and the input end of the water return component (4) is connected to the filter pool (1), and the output end of the water return component (4) is connected to an external collection pool; A separation shell (5) is arranged on a side of the filter pool (1) away from the water return assembly (4); a fixed shell (6) is arranged through the top of the separation shell (5); the fixed shell (6) is rotatably connected to the separation shell (5); a filter cartridge (7) is fixedly mounted on the inner side wall of the fixed shell (6); and a support plate (8) is arranged on the bottom wall of the filter cartridge (7); A plug-in mechanism is provided on the inner side of the filter cartridge (7) near the bottom, and the plug-in mechanism is plugged into the support plate (8); A lifting assembly (9) is provided on the supporting legs of the separation shell (5), and the supporting plate (8) is rotatably connected to the lifting assembly (9); A fixing frame (10) is fixedly mounted on the top of the separation shell (5), a water inlet pipe is penetrated through the fixing frame (10), a drainage pipe is fixedly mounted on the bottom wall of the separation shell (5), and the other end of the drainage pipe is connected to the filter tank (1); The fixing frame (10) is provided with a second driving assembly (11) and a first driving assembly (13), respectively; the second driving assembly (11) is provided with a filter press assembly (12), and the first driving assembly (13) is connected to the fixing shell (6); The filter pool (1) is provided with a mounting assembly (14), and the mounting assembly (14) is respectively provided with a filtering assembly (15) and a cleaning assembly (16).

2. The energy-saving and emission-reducing water return device for corrugated board production according to claim 1 is characterized in that: The plug-in mechanism comprises four plug-in blocks (17) arranged in a cross shape and fixedly mounted on the inner wall of the filter cartridge (7); the top of the support plate (8) is provided with four plug-in slots (18) arranged in a cross shape, and the plug-in blocks (17) are plugged into the plug-in slots (18).

3. The energy-saving and emission-reducing water return device for corrugated board production according to claim 1 is characterized in that: The lifting assembly (9) comprises a fixed plate (91) fixedly mounted on the supporting legs of the filter tank (1), a cylinder (92) being fixedly mounted on the bottom wall of the fixed plate (91), and the supporting plate (8) being rotatably mounted on the output end of the cylinder (92), and a sealing ring (19) being sleeved on the outer side of the supporting plate (8).

4. The energy-saving and emission-reducing water return device for corrugated board production according to claim 1 is characterized in that: The first driving assembly (13) comprises a first motor (1301) fixedly mounted on the inner top wall of the fixed frame (10) via a motor frame 1, a gear (1302) being fixedly mounted on the output end of the first motor (1301), an outer gear ring (1303) being fixedly mounted on the outer side wall of the fixed shell (6), and the gear (1302) and the outer gear ring (1303) being meshingly connected.

5. The energy-saving and emission-reducing water return device for corrugated board production according to claim 1, characterized in that: The second driving assembly (11) comprises a threaded rod (1101) and a limiting rod (1102) mounted on the top of the fixing frame (10), and the threaded rod (1101) is rotatably mounted on the fixing frame (10); A second motor (1103) is fixedly mounted on the inner top wall of the fixing frame (10) via a second motor frame, and an output end of the second motor (1103) is fixedly connected to the threaded rod (1101).

6. The energy-saving and emission-reducing water return device for corrugated board production according to claim 5, characterized in that: The filter press assembly (12) comprises a rectangular plate (1201) arranged on the threaded rod (1101) and the limiting rod (1102), and the rectangular plate (1201) is threadedly connected to the threaded rod (1101), two fixing columns (1202) are fixedly installed at the bottom of the rectangular plate (1201), and a pressure plate (1203) is fixedly installed at the bottom of the two fixing columns (1202); A belt brush (1204) is fixedly mounted on the outer wall of the pressure plate (1203), and the belt brush (1204) is in contact with the filter cartridge (7).

7. The energy-saving and emission-reducing water return device for corrugated board production according to claim 1, characterized in that: The cleaning assembly (16) comprises two electric telescopic rods (1601) fixedly mounted on the top of the mounting assembly (14); a fixing plate (1602) is fixedly mounted on the top of each of the two electric telescopic rods (1601); four U-shaped frames (1603) are arranged in the middle of the two fixing plates (1602); and both sides of the four U-shaped frames (1603) are fixedly connected to the fixing plates (1602) symmetrically arranged therebetween; A brush (1604) is fixedly mounted on one side of each of the four U-shaped frames (1603), and the four brushes (1604) are arranged in pairs and face each other.

8. The energy-saving and emission-reducing water return device for corrugated board production according to claim 1, characterized in that: The mounting assembly (14) comprises a mounting frame (1401) arranged on the filter pool (1), the top of the mounting frame (1401) is provided with two cross grooves (1402), and the filter assembly (15) is plugged into the inner side of the cross grooves (1402); Both sides of the mounting frame (1401) are threadedly connected with hand screws (1403), and the screw ends of the hand screws (1403) are in contact with the filter pool (1).

9. The energy-saving and emission-reducing water return device for corrugated board production according to claim 8, characterized in that: The filter assembly (15) comprises two filter screens (1501), and a strip plate (1502) is fixedly mounted on the top of each of the two filter screens (1501), and the two strip plates (1502) are respectively inserted into the inner sides of the two cross grooves (1402); The mounting frame (1401) and the two strip plates (1502) are both provided with communicating circular holes, and a plug-in rod (1503) is plugged into the inner side of the circular hole.

10. The energy-saving, emission-reducing and water-returning device for corrugated board production according to claim 1, characterized in that: The water return assembly (4) comprises a water pump (41) arranged on one side of the filter tank (1); an extraction pipe (42) is fixedly mounted on the input end of the water pump (41), and the other end of the extraction pipe (42) is connected to the filter tank (1); A delivery pipe (43) is fixedly installed at the output end of the water pump (41), and the other end of the delivery pipe (43) is connected to an external collection tank.

Images