A filtering device for producing water-based resin

Abstract

The utility model discloses a kind of filtering equipment for water-based resin production, including shell, cover plate assembly being located on the upper end of shell, driving mechanism, filter cartridge and cleaning mechanism, magnetic coupling assembly is equipped between driving mechanism and cleaning mechanism, magnetic coupling assembly includes second permanent magnet and first permanent magnet;Cleaning mechanism includes rotating rod and eddy current blade, eddy current blade is used to produce cleaning eddy current in gap when rotating, to realize the low shear, wearless cleaning of filter cartridge outer wall.The utility model is driven by eddy current blade to produce fluid shear force by magnetic force non-contact cleaning mechanism, avoids the shear breaking problem caused by mechanical scraping brush to water-based resin emulsion, guarantees the stability of product, and, complete static seal is realized by magnetic transmission, eliminates the leakage and wear risk of traditional shaft seal, equipment service life is long, and maintenance cost is low.

Description

Technical Field

[0001] This utility model belongs to the field of water-based resin production technology, and in particular relates to a filtration device for water-based resin production. Background Technology

[0002] In the production process of water-based resins, the reacted resin solution often contains impurities such as gel particles and unreacted monomers, requiring filtration to obtain a pure product. Currently, bag filters or cartridge filters are commonly used in the industry, but when processing high-viscosity or easily gelled resins, they suffer from low filtration efficiency, frequent filter media replacements, and high operating costs.

[0003] Furthermore, while some self-cleaning filters, such as brush or scraper filters, can extend filter cartridge life, their mechanical scraping action generates significant shear forces on the water-based resin emulsion, easily leading to emulsion demulsification, flocculation, and compromised product stability. Simultaneously, the dynamic seals of the mechanical drive shaft pose a risk of leakage and wear, potentially contaminating the product. To address these issues, a filtration device for water-based resin production is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a filtration device for the production of water-based resins, thereby solving the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a filtration device for the production of water-based resins, comprising a housing, a cover plate assembly disposed at the upper end of the housing, a drive mechanism, a filter cylinder, and a cleaning mechanism. A magnetic coupling assembly is provided between the drive mechanism and the cleaning mechanism. The magnetic coupling assembly includes a second permanent magnet fixed to the output end of the drive mechanism and a first permanent magnet embedded in the rotating rod of the cleaning mechanism. The cleaning mechanism includes a rotating rod fixedly connected to the first permanent magnet and vortex blades fixed to the circumferential side of the rotating rod. The vortex blades are in a non-contact clearance fit with the outer wall of the filter cylinder. The vortex blades are used to generate cleaning vortices in the clearance during rotation to achieve low-shear and wear-free cleaning of the outer wall of the filter cylinder.

[0006] Preferably, the cover plate assembly includes an upper cover plate and a lower cover plate. The lower cover plate is fixedly installed on the upper end of the housing. The upper cover plate and the lower cover plate are detachably connected by bolts. The upper surface of the upper cover plate is provided with a feed inlet. A diverter cylinder is fixedly connected below the feed inlet. The cylinder wall of the diverter cylinder is provided with several diverter grooves. The outlet of each diverter groove is provided with a splash guard. The cross-section of the diverter groove is U-shaped. The guiding surface of the splash guard is a downwardly curved, slightly concave arc surface.

[0007] Preferably, a mounting frame is fixedly installed inside the filter cartridge, and a flow guide is fixedly installed on the upper surface of the mounting frame. Several protrusions are fixed on the bottom of the peripheral side of the flow guide. The flow guide is umbrella-shaped, and the protrusions are used to disperse the wall flow.

[0008] Preferably, a connecting rod is rotatably provided inside the diverter cylinder, and a spiral blade is fixedly connected to the peripheral side of the connecting rod.

[0009] Preferably, the vortex blades are arranged in multiple groups, and each group of blades is arranged asymmetrically in the circumferential direction of the rotating rod.

[0010] Preferably, a limiting ring is fixedly provided on the bottom surface of the inner wall of the housing, the bottom end of the rotating rod is inserted into the limiting ring, and a bearing bushing made of self-lubricating material is embedded in the limiting ring.

[0011] Preferably, the driving mechanism is a motor fixedly mounted on the upper cover plate, and a mounting ring is fixed on the upper surface of the upper cover plate. The second permanent magnet is rotatably disposed in the mounting ring through a bearing.

[0012] Preferably, the feed inlet is internally threaded with a plug, and the bottom surface of the housing is fixedly connected with a discharge pipe.

[0013] This utility model has the following beneficial effects: 1. This utility model uses a magnetic coupling non-contact cleaning mechanism to generate fluid shear force by driving vortex blades with magnetic force in the air, which avoids the shearing and demulsification problem caused by mechanical scraping of water-based resin emulsion, ensuring the stability of the product. In addition, complete static sealing is achieved through magnetic transmission, eliminating the leakage and wear risks of traditional shaft seals. The equipment has a long service life and low maintenance cost. 2. This utility model uses a cascaded flow stabilization and distribution mechanism and an umbrella-shaped flow guiding and distribution mechanism to work together to distribute the feed liquid flow evenly and smoothly to the entire outer surface of the filter cartridge, avoiding local blockage. At the same time, the vortex generated by non-contact cleaning can remove filter residue without dead angles, so that the filtration process remains efficient and smooth.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1This is a three-dimensional structural diagram of the present invention; Figure 2 This is a first cross-sectional view of the present invention. Figure 3 This is a second cross-sectional view of the present invention. Figure 4 This is a schematic diagram of the cleaning mechanism of this utility model; Figure 5 This is a schematic diagram of the current distribution mechanism of this utility model; Figure 6 This is a schematic diagram of the flow guiding and distribution mechanism of this utility model; Figure 7 for Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0017] The components represented by each number in the attached diagram are listed below: 1. Housing; 2. Upper cover plate; 3. Lower cover plate; 4. Motor; 5. Plug; 6. Discharge pipe; 7. Filter cylinder; 8. First permanent magnet; 9. Rotating rod; 10. Vortex blade; 11. Limiting ring; 12. Diverter cylinder; 13. Mounting bracket; 14. Flow guide; 15. Connecting rod; 16. Spiral blade; 17. Diverter groove; 18. Splash shield; 19. Protrusion; 20. Mounting ring; 21. Second permanent magnet. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0020] Please see Figures 1-7 As shown, this utility model is a filtration device for the production of water-based resin, including a housing 1, a cover plate assembly disposed on the upper end of the housing 1, a drive mechanism, a filter cylinder 7 and a cleaning mechanism. The top of the housing 1 is sealed by a cover plate assembly consisting of a lower cover plate 3 and an upper cover plate 2, which are detachably connected by bolts for easy maintenance. The drive mechanism is a motor 4 fixedly mounted on the upper cover plate 2. The output end of the motor 4 is connected to a second permanent magnet 21. The permanent magnet is supported by a bearing in a mounting ring 20 fixed to the upper cover plate 2 to ensure stable rotation.

[0021] The magnetic coupling assembly consists of a rotating second permanent magnet 21 and a first permanent magnet 8 embedded inside the rotating rod 9. When the motor 4 drives the second permanent magnet 21 to rotate, the rotating magnetic field it generates penetrates the space and, through magnetic coupling, synchronously drives the first permanent magnet 8 located inside the housing and the rotating rod 9 fixed thereto to rotate. This design eliminates the traditional rotating shaft sealing structure and achieves absolute static sealing.

[0022] The cleaning mechanism consists of a rotating rod 9 and vortex blades 10 fixed to its circumferential side. The key is that the rotational profile of the vortex blades 10 maintains a precise, non-contact gap with the outer wall of the filter cartridge 7. The bottom of the rotating rod 9 is supported by a limiting ring 11 fixed to the bottom surface of the housing. The limiting ring 11 has a bearing bushing made of self-lubricating material embedded in it, which ensures low friction and zero wear while achieving precise radial positioning. The vortex blades 10 are arranged in multiple sets and are asymmetrically arranged around the rotating rod 9. The purpose of this design is to generate strong, disordered cleaning vortices in the inner cavity of the housing outside the filter cartridge 7. These vortices act directly on the outer wall of the filter 7, generating a strong fluid shear force on the filter residue attached to the outer wall, peeling it off and carrying it away, thereby achieving non-contact, low-shear cleaning.

[0023] A diverter cylinder 12 is fixedly connected below the feed inlet of the upper cover plate 2 (normally sealed by the plug 5). The bottom outlet of the diverter cylinder 12 is directly connected to the upper interior of the filter cylinder 7. Several U-shaped diverter grooves 17 are provided on the cylinder wall of the diverter cylinder 12. Each diverter groove 17 outlet is provided with a splash guard 18, and the guide surface of the splash guard 18 is a downwardly curved, slightly concave arc surface. The function of this structure combination is that when it is necessary to add liquid to the equipment, the liquid flow becomes uniform and gentle through the flow stabilizing structure of the diverter cylinder 12, and then flows directly and smoothly into the internal cavity of the filter cylinder 7, avoiding the impact damage of the liquid flow to the filter cake or filter membrane already formed in the filter cylinder.

[0024] Inside the filter cartridge 7, an umbrella-shaped flow guide 14 is fixedly installed by a mounting bracket 13. Several protrusions 19 are fixed on the bottom of the peripheral side of the flow guide 14. Its function is to disperse the liquid evenly in all directions when the liquid enters the filter cartridge, so as to avoid the liquid flow from concentrating and impacting a certain area of ​​the inner wall of the filter cartridge 7. The protrusions 19 at the bottom can further disperse the liquid flow, ensuring that the liquid to be filtered evenly covers the entire inner surface of the filter cartridge 7, so that the filtration process is stable and efficient.

[0025] In addition, as an optimization, a connecting rod 15 can be rotatably installed inside the diversion cylinder 12, with spiral blades 16 fixed on its periphery. This auxiliary stirrer can be impacted or slightly rotated with the liquid flow to play a pre-stirring role in preventing impurities from depositing inside the diversion cylinder 12.

[0026] During filtration, the material permeates from the inside to the outside of the filter cylinder 7 under pressure. The filtered resin liquid passes through the filter cylinder 7 and enters the cavity between the filter cylinder 7 and the shell 1, collects at the bottom of the shell 1, and is finally discharged through the discharge pipe 6. Impurities are trapped on the inner surface of the filter cylinder 7.

[0027] Working principle: Opening the cap 5, the aqueous resin liquid enters the distribution cylinder 12 through the inlet. After being rectified by the U-shaped distribution groove 17 and the splash guard 18, it smoothly and directly enters the interior of the filter cylinder 7. The umbrella-shaped guide 14 inside evenly guides the liquid to the entire inner surface of the filter cylinder. Driven by system pressure, the resin liquid permeates the filter cylinder 7 from the inside out. After passing through the filter cylinder 7, the clean liquid enters the cavity between the filter cylinder 7 and the housing 1, collects at the bottom of the housing, and is discharged through the outlet pipe 6. Impurities are intercepted and adhere to the inner surface of the filter cylinder. At the same time, the motor 4... Upon startup, the rotating rod 9 and vortex blades 10 are driven to rotate at high speed via magnetic coupling. Since the blades are located outside the filter cylinder 7, the strong cleaning vortex they generate acts on the outer wall of the filter cylinder 7. Although impurities adhere to the inside, the continuous scouring and vibration of the vortex on the outer wall of the filter cylinder 7 effectively prevents the outside of the filter cylinder 7 from being blocked by impurities in the environment (especially when the machine is stopped). Through the hydrodynamic action on the cylinder wall, it indirectly helps to maintain the unobstructed flow of the filtration channel. Its main purpose is to keep the outside of the filter cylinder 7 clean and ensure the smooth flow of the filtrate.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] 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 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. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A filtration device for the production of water-based resins, comprising a housing (1), a cover plate assembly disposed at the upper end of the housing (1), a drive mechanism, a filter cylinder (7), and a cleaning mechanism, characterized in that: A magnetic coupling assembly is provided between the drive mechanism and the cleaning mechanism. The magnetic coupling assembly includes a second permanent magnet (21) fixed to the output end of the drive mechanism and a first permanent magnet (8) embedded in the rotating rod (9) of the cleaning mechanism. The cleaning mechanism includes a rotating rod (9) fixedly connected to the first permanent magnet (8) and vortex blades (10) fixed to the circumferential side of the rotating rod (9). The vortex blades (10) and the outer wall of the filter cylinder (7) are in a non-contact clearance fit. The vortex blades (10) are used to generate cleaning vortices in the gap when rotating, so as to achieve low-shear and wear-free cleaning of the outer wall of the filter cylinder (7).

2. The filtration equipment for producing water-based resin according to claim 1, characterized in that, The cover plate assembly includes an upper cover plate (2) and a lower cover plate (3). The lower cover plate (3) is fixedly installed on the upper end of the housing (1). The upper cover plate (2) and the lower cover plate (3) are detachably connected by bolts. The upper surface of the upper cover plate (2) is provided with a feed inlet. A diverter cylinder (12) is fixedly connected below the feed inlet. The cylinder wall of the diverter cylinder (12) is provided with several diverter grooves (17). The outlet of each diverter groove (17) is provided with a splash guard (18). The cross-section of the diverter groove (17) is U-shaped. The guide surface of the splash guard (18) is a downwardly curved micro-concave arc surface.

3. The filtration equipment for producing water-based resin according to claim 2, characterized in that, The filter cartridge (7) is fixedly installed with a mounting bracket (13). A flow guide (14) is fixedly installed on the upper surface of the mounting bracket (13). Several protrusions (19) are fixed on the bottom of the peripheral side of the flow guide (14). The flow guide (14) is umbrella-shaped, and the protrusions (19) are used to disperse the wall flow.

4. A filtration device for producing water-based resins according to claim 2, characterized in that, The diverter tube (12) is also rotatably provided with a connecting rod (15), and a spiral blade (16) is fixedly connected to the circumferential side of the connecting rod (15).

5. A filtration device for producing water-based resins according to claim 1, characterized in that, The vortex blades (10) are arranged in multiple groups, and each group of blades is arranged asymmetrically in the circumferential direction of the rotating rod (9).

6. A filtration device for producing water-based resins according to claim 1, characterized in that, A limiting ring (11) is fixedly provided on the bottom surface of the inner wall of the housing (1). The bottom end of the rotating rod (9) is inserted into the limiting ring (11), and a bearing bush made of self-lubricating material is embedded in the limiting ring (11).

7. A filtration device for producing water-based resins according to claim 1, characterized in that, The driving mechanism is a motor (4) fixedly installed on the upper cover plate (2). An installation ring (20) is fixed on the upper surface of the upper cover plate (2). The second permanent magnet (21) is rotatably disposed in the installation ring (20) through a bearing.

8. A filtration device for producing water-based resins according to claim 2, characterized in that, The feed inlet is threaded with a plug (5), and the bottom surface of the housing (1) is fixedly connected with a discharge pipe (6).

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