Multi-stage filtration device for papermaking wastewater

Abstract

This utility model relates to the field of papermaking wastewater treatment technology, and in particular to a multi-stage filtration device for papermaking wastewater. It includes a base plate, a drainage frame installed at the rear end of the base plate, and a support block installed on the top of the base plate. A groove is provided on the top of the support block, and a fixing block is connected to the rear side of the top of the support block. A motor is connected to the top of the fixing block, and a pinion gear is connected to the output end of the motor. A gear ring is rotatably connected to the front end of the fixing block. The motor drives the pinion gear to rotate, causing the gear ring to rotate on the fixing block. This utility model achieves automatic cleaning of the filter screen by setting a rotatable filter cylinder and a gear screw drive mechanism. During cleaning, the filter cylinder rotates under the drive of the motor, causing the concentrated dirt area to move upwards and be initially unloaded by gravity. Then, the screw pushes the pusher block to penetrate deep into the interior to thoroughly remove residual dirt. This effectively replaces the traditional manual disassembly and cleaning method, significantly shortens cleaning time, increases wastewater recycling efficiency, and contributes to water resource reuse.

Description

Technical Field

[0001] This utility model relates to the field of papermaking wastewater treatment technology, and in particular to a multi-stage filtration device for papermaking wastewater. Background Technology

[0002] A multi-stage filtration device for papermaking wastewater is a specialized device for purifying wastewater generated during the papermaking process in stages. This device typically consists of multiple filtration units with different functions, such as a coarse filter layer, a flocculation sedimentation layer, a fine filter layer, and an activated carbon adsorption layer. It removes suspended solids, fiber residues, organic matter, and harmful chemical components from the wastewater in stages, following the principle of coarse first and then fine.

[0003] In the current multi-stage filtration device for wastewater from papermaking, the replacement and cleaning of the filter screen usually requires manual disassembly of part of the device structure. This is not only cumbersome to operate, but also requires machine shutdown, resulting in long downtime and affecting overall processing efficiency and production progress.

[0004] Therefore, in view of the problems that existing multi-stage filtration devices for papermaking wastewater usually require manual disassembly of some structures when replacing or cleaning the filter screen, which is cumbersome, requires shutdown, prolongs downtime, and affects processing efficiency and production progress, there is an urgent need to design a new type of multi-stage filtration device for papermaking wastewater. Utility Model Content

[0005] To overcome the problem that existing multi-stage filtration devices for papermaking wastewater typically require manual disassembly of parts of the structure when replacing or cleaning the filter screens, which is cumbersome, necessitates machine shutdown, prolongs downtime, and affects processing efficiency and production schedule.

[0006] The technical solution of this utility model is as follows: a multi-stage filtration device for papermaking wastewater, comprising a base plate, a drainage frame installed at the rear end of the base plate, and a support block installed at the top of the base plate. A groove is formed on the top of the support block, and a fixed block is connected to the rear top of the support block. A motor is connected to the top of the fixed block, and a pinion gear is connected to the output end of the motor. A gear ring is rotatably connected to the front end of the fixed block. The motor drives the pinion gear to rotate, causing the gear ring to rotate on the fixed block. A lead screw is threaded into the gear ring, and a slider is connected to the front end of the lead screw. The slider is slidably connected to the groove. A motor is connected to the rear top of the base plate. A geared disc is rotatably connected to the front of the inside of the drain frame. A filter cylinder is connected to the rear end of the geared disc. The geared disc is ring-shaped, and the filter cylinder consists of multiple filter screens connected by partition plates. A push block is connected to the rear end of the lead screw through a fixed block. The push block is movably connected to the drain frame. The motor drives the pinion to rotate, causing the geared ring to rotate on the fixed block. The lead screw moves back and forth through the rotation of the fixed block. The movement of the lead screw pushes the push block to move. The push block is movably connected to the filter cylinder. A large gear is rotatably connected to the front of the inside of the drain frame. The large gear meshes with the geared disc and is connected to the output end of the motor.

[0007] Preferably, this device uses a filter cartridge to allow wastewater to enter from the bottom for initial filtration. When cleaning is required, simply stop the water intake and start the motor. The motor drives a large gear to rotate a geared disc, causing the filter cartridge to rotate above the area to be cleaned. Some of the attached dirt can fall off by gravity. Subsequently, another motor drives a small gear to rotate, causing a geared ring to rotate within a fixed block. This, in turn, pushes a lead screw to move back and forth. The lead screw drives a pusher block into the filter cartridge, completely pushing out any remaining dirt. This structure achieves automatic rotation and rapid cleaning of the filter cartridge, significantly simplifying the filter maintenance process. It eliminates the need for manual disassembly, greatly reduces downtime for cleaning, effectively improves the equipment's operating efficiency and continuous processing capacity, and enhances the practical application value of the device in papermaking wastewater treatment.

[0008] Preferably, a support plate is connected to the right end of the drainage frame. The support plate is L-shaped, and an air pump is connected to the top of the support plate.

[0009] Preferably, a nozzle is connected to the bottom of the support plate, and the nozzle is connected to the output end of the air pump.

[0010] Preferably, a movable groove is provided on the top rear side of the drainage frame, and a spring is connected inside the movable groove.

[0011] Preferably, the end of the spring away from the moving groove is connected to a pull block, and the rear end of the pull block is connected to a handle.

[0012] Preferably, a groove is provided on the top rear side of the drainage frame, and a collection frame is movably connected inside the groove.

[0013] Preferably, the rear end of the drainage frame is provided with a water inlet, which is connected to an external water pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] By setting up a rotatable filter cartridge and a matching gear and screw drive mechanism, the filter screen can be automatically cleaned. During the cleaning process, the filter cartridge can rotate precisely under the drive of an electric motor, causing the concentrated dirt area to move upward. With the help of gravity, the attached impurities are initially unloaded. Subsequently, the pinion gear drives the gear ring and screw to push the pusher block into the interior of the filter cartridge, completely pushing out the remaining dirt. This structure avoids the complexity of operation and downtime caused by traditional manual disassembly and cleaning. It not only greatly shortens the cleaning cycle, but also effectively improves the operational continuity and maintenance efficiency of the filtration system, significantly enhancing the filtration effect and facilitating online water recycling and reuse, thus achieving clean paper production. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the multi-stage filtration device for papermaking wastewater according to the present invention.

[0017] Figure 2 This is a three-dimensional side view of the multi-stage filtration device for papermaking wastewater according to the present invention.

[0018] Figure 3 This is a three-dimensional rear view schematic diagram of the multi-stage filtration device for papermaking wastewater according to this utility model.

[0019] Figure 4 This is a three-dimensional bottom view of the multi-stage filtration device for papermaking wastewater according to this utility model.

[0020] Figure 5 This is a three-dimensional rear sectional view of the multi-stage filtration device for papermaking wastewater according to this utility model.

[0021] In the diagram: 1. Base plate; 2. Drainage frame; 31. Support block; 32. Slide groove; 33. Fixing block; 34. Motor; 35. Pinion gear; 36. Gear ring; 37. Lead screw; 38. Slider; 39. Motor; 310. Gear disc; 311. Filter cartridge; 312. Divider plate; 313. Push block; 314. Large gear; 41. Support plate; 42. Air pump; 43. Nozzle; 44. Moving groove; 45. Spring; 46. Pull block; 47. Handle; 48. Collection frame; 49. Water inlet. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5This utility model provides an embodiment of a multi-stage filtration device for papermaking wastewater, comprising a base plate 1, a drainage frame 2 installed at the rear end of the base plate 1, and a support block 31 installed at the top of the base plate 1. The top of the support block 31 has a sliding groove 32. A fixing block 33 is connected to the rear side of the top of the support block 31. A motor 34 is connected to the top of the fixing block 33. A pinion 35 is connected to the output end of the motor 34. A gear ring 36 is rotatably connected to the front end of the fixing block 33. The motor 34 drives the pinion 35 to rotate, causing the gear ring 36 to rotate on the fixing block 33. A lead screw 37 is threadedly connected to the inside of the gear ring 36. The front end of the screw 37 is connected to a slider 38, which is slidably connected to the groove 32. The rear top of the base plate 1 is connected to a motor 39. The front inside of the drainage frame 2 is rotatably connected to a gear 310. The rear end of the gear 310 is connected to a filter cylinder 311. The gear 310 is ring-shaped, and the filter cylinder 311 is composed of multiple filter screens. The filter screens are connected by partition plates 312. The rear end of the screw 37 passes through the fixing block 33 and is connected to a push block 313. The push block 313 is movably connected to the drainage frame 2. The motor 34 drives the pinion 35 to rotate, causing the gear ring 36 to rotate on the fixing block 33. The screw 37 is connected to the fixing block 33. Block 33 rotates, causing it to move back and forth. Screw 37 moves, pushing push block 313 to move. Push block 313 is movably connected to filter cylinder 311. A large gear 314 is rotatably connected to the front of the drain frame 2. The large gear 314 meshes with gear disc 310 and is connected to the output of motor 39. This device uses filter cylinder 311 to allow wastewater to enter from the bottom for preliminary filtration. When cleaning is required, simply stop the water intake and start motor 39. Motor 39 drives large gear 314 to drive gear disc 310, causing filter cylinder 311 to rotate to the area requiring cleaning. Above, some of the attached dirt can fall off on its own under the action of gravity. Then, another motor 34 drives the pinion 35 to rotate, causing the gear ring 36 to rotate inside the fixed block 33, which in turn pushes the lead screw 37 to move back and forth. The lead screw 37 drives the push block 313 into the filter cartridge 311, completely pushing out the residual dirt. This structure realizes the automatic rotation and rapid cleaning of the filter cartridge 311, which significantly simplifies the maintenance process of the filter screen. No manual disassembly is required, which greatly reduces the downtime for cleaning and effectively improves the operating efficiency and continuous processing capacity of the equipment, enhancing the practical application value of the device in papermaking wastewater treatment.

[0024] Please see Figures 1-5 In this embodiment, a support plate 41 is connected to the right end of the drainage frame 2. The support plate 41 is L-shaped. An air pump 42 is connected to the top of the support plate 41, and a nozzle 43 is connected to the bottom of the support plate 41. The nozzle 43 is connected to the output end of the air pump 42. A moving groove 44 is provided on the rear side of the top of the drainage frame 2. A spring 45 is connected inside the moving groove 44. When the air pump 42 is started, air enters the air pump 42 and is quickly sprayed out through the nozzle 43, thereby blowing off the dirt inside the filter cartridge 311 that needs to be cleaned, thereby improving the cleaning quality.

[0025] Please see Figures 2-5 In this embodiment, the other end of the spring 45 away from the moving groove 44 is connected to a pull block 46, and the rear end of the pull block 46 is connected to a handle 47. A groove is provided on the rear side of the top of the drainage frame 2, and a collection frame 48 is movably connected inside the groove. A water inlet 49 is provided at the rear end of the drainage frame 2. The water inlet 49 is connected to an external water pipe. The water inlet 49 discharges wastewater into the filter cylinder 311, and the wastewater is filtered through the filter cylinder 311. The filtered wastewater flows into the lower device through the drainage frame 2. The filter cylinder 311 is composed of multiple filter screens of different levels, and the partition plate 312 is used to classify the filter cylinder 311.

[0026] During operation, first connect the lower side of the drain frame 2 to the external device to collect the filtered water. Then pull the handle 47, which drives the pull block 46 and stretches the spring 45. Place the collection frame 48 into the groove of the drain frame 2 and release the handle 47. The pull block 46 resets under the action of the elastic force and clamps the collection frame 48, completing the installation operation. Next, connect the inlet 49 to the external water pipe. After the wastewater enters, it is filtered through the filter cartridges 311 with different grades. When it is necessary to clean the filter cartridges 311, first stop the water inlet and start the motor 39. The motor 39 drives the large gear 314 to rotate, which drives the gear... The disc 310 rotates the filter cartridge 311, bringing the area to be cleaned to the top. Some dirt falls off naturally due to gravity. Then, the air pump 42 is activated, which sprays air at high speed through the nozzle 43, effectively blowing away residual dirt adhering to the inside of the filter cartridge 311 and improving the cleaning effect. Finally, the motor 34 is activated, and the pinion 35 drives the gear ring 36 to rotate on the fixed block 33, which drives the lead screw 37 to move back and forth, thereby pushing the pusher block 313 into the inside of the filter cartridge 311 and thoroughly pushing the remaining dirt into the collection frame 48 for collection, achieving rapid cleaning and effectively improving the operating efficiency and maintenance convenience of the equipment.

[0027] Through the above steps, the automatic cleaning of the filter screen is achieved by setting a rotatable filter cylinder 311 and a gear and lead screw 37 drive mechanism. During cleaning, the motor 39 drives the filter cylinder 311 to rotate, turning the dirt area to the top, and using gravity to initially unload impurities. Then, the pinion 35 drives the gear ring 36 to work in conjunction with the lead screw 37, pushing the push block 313 to completely remove the residual dirt. This structure eliminates the traditional manual disassembly steps, reduces downtime, improves cleaning efficiency and the continuity of filtration system operation, and significantly enhances the practicality and ease of maintenance of wastewater treatment equipment. It solves the problem that existing multi-stage filtration devices for papermaking wastewater usually require manual disassembly of some structures when replacing or cleaning the filter screen, which is cumbersome, requires downtime, prolongs downtime, and affects treatment efficiency and production progress. It also contributes to water resource reuse.

[0028] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many other modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it.

Claims

1. A multi-stage filtering device for papermaking wastewater, comprising a bottom plate; characterized in that: It also includes a drainage frame installed at the rear end of the base plate and a support block installed at the top of the base plate. The top of the support block has a groove, and a fixed block is connected to the rear side of the top of the support block. A motor is connected to the top of the fixed block, and a small gear is connected to the output end of the motor. A gear ring is rotatably connected to the front end of the fixed block. The motor drives the small gear to rotate, causing the gear ring to rotate on the fixed block. A lead screw is connected to the internal thread of the gear ring, and a slider is connected to the front end of the lead screw. The slider is slidably connected to the groove. A motor is connected to the rear side of the top of the base plate. A gear plate is rotatably connected to the front side of the inside of the drainage frame. A filter cylinder is connected to the rear end of the gear plate. The gear plate is ring-shaped, and the filter cylinder is composed of multiple filter screens. A partition plate is connected between the filter screens. A push block is connected to the rear end of the lead screw through the fixed block. The push block is movably connected to the drainage frame. The motor drives the small gear to rotate, causing the gear ring to rotate on the fixed block. The lead screw moves back and forth through the rotation of the fixed block. The movement of the lead screw pushes the push block to move. The push block is movably connected to the filter cylinder. A large gear is rotatably connected to the front side of the inside of the drainage frame. The large gear meshes with the gear plate and is connected to the output end of the motor.

2. The multi-stage filtering device for papermaking wastewater according to claim 1, characterized in that: A support plate is connected to the right end of the drainage frame. The support plate is L-shaped, and an air pump is connected to the top of the support plate.

3. The multi-stage filtering device for papermaking wastewater according to claim 2, characterized in that: The bottom of the support plate is connected to a nozzle, which is connected to the output end of the air pump.

4. The multi-stage filtering device for papermaking wastewater according to claim 3, characterized in that: A movable groove is provided on the top rear side of the drainage frame, and a spring is connected inside the movable groove.

5. The multi-stage filtration device for papermaking wastewater according to claim 4, characterized in that: The end of the spring away from the moving groove is connected to a pull block, and the rear end of the pull block is connected to a handle.

6. The multi-stage filtering device for papermaking wastewater according to claim 5, characterized in that: A groove is provided on the top rear side of the drainage frame, and a collection frame is movably connected inside the groove.

7. The multi-stage filtering device for papermaking wastewater according to claim 6, characterized in that: The rear end of the drainage frame is equipped with a water inlet, which is connected to an external water pipe.

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