Vertical coating dispersing, stirring and online integrated filtering equipment

Abstract

The invention provides vertical coating dispersing, stirring and online integrated filtering equipment, and relates to the technical field of coating mixing equipment, the vertical coating dispersing, stirring and online integrated filtering equipment comprises a rack assembly, and a driving assembly, a bearing seat assembly and an outer barrel which are arranged on the rack assembly; the bearing seat assembly comprises a bearing seat, a discharging hopper is arranged on the bearing seat, a discharging pipe is connected to the discharging hopper, and a gap separator is fixedly connected to the lower portion of the discharging hopper. A main shaft longitudinally penetrates through the discharging hopper and the gap separator, the upper end of the main shaft is connected with the driving assembly, and the lower end of the main shaft is connected with a cylindrical rotor; the gap separator is located in the cylindrical rotor and can rotate relative to the cylindrical rotor which is driven by the main shaft to rotate. The equipment has the beneficial effects that the equipment utilization rate, the production continuity and the working condition adaptability are improved while the product quality is guaranteed, and the equipment is suitable for efficient, energy-saving and intelligent treatment of medium and high viscosity coating slurry.

Description

Technical Field

[0001] This invention relates to the field of coating mixing equipment technology, and in particular to a vertical coating dispersion, mixing and online integrated filtration equipment. Background Technology

[0002] In the fine chemical industry, including coatings, inks, and adhesives, achieving efficient dispersion, homogenization, and precision filtration of high-viscosity slurries containing solids is a core technological step in ensuring product fineness, stability, and appearance quality. Currently, the industry generally adopts a two-stage separation process of dispersion followed by transfer filtration. This means that the material is first dispersed in a high-speed dispersion device where solid particles are broken down and the liquid phase is mixed through shearing and turbulence, before being pumped to an independent filtration unit where undispersed agglomerates and mechanical impurities are intercepted by a filter screen.

[0003] However, the aforementioned traditional processes have certain technical drawbacks when processing systems with high viscosity and high solids content: 1. Because the separation of dispersion and filtration requires the transfer and temporary storage of materials, the process is interrupted and the continuity is poor. This not only prolongs the cycle, increases energy consumption and cleaning costs, and results in low energy efficiency, but also makes it easy for problems such as sedimentation and viscosity fluctuations to occur due to process interruption, affecting batch stability.

[0004] 2. Highly viscous materials can easily cause the filter screen surface to quickly gelatinize and clog, resulting in problems such as decreased filtration efficiency and increased system back pressure. The traditional method is to stop the machine and manually disassemble, clean or replace the filter screen after it becomes clogged. This is not only labor-intensive and time-consuming, but also has a low overall utilization rate of the equipment. Furthermore, it is easy to introduce contamination or damage to the filter media during open operation, increasing quality risks and maintenance costs.

[0005] Therefore, the industry urgently needs to develop an integrated equipment that can integrate dispersion, mixing and online filtration functions, and can realize in-situ self-cleaning or regeneration of filter units in a closed system, so as to fundamentally solve the long-standing pain point of relying on manual disassembly and cleaning after filter screen blockage, and promote the upgrading of fine chemical slurry production towards continuous, efficient, low-consumption and intelligent directions. Summary of the Invention

[0006] This invention overcomes the shortcomings of the prior art and provides a vertical integrated equipment for coating dispersion, stirring and online filtration. While ensuring product quality, it improves equipment utilization, production continuity and adaptability to working conditions. It is suitable for efficient, energy-saving and intelligent processing of medium and high viscosity coating slurries.

[0007] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: A vertical integrated coating dispersion, mixing, and online filtration device includes: A frame assembly, and a drive assembly, a bearing housing assembly, and an outer barrel disposed on the frame assembly; The bearing housing assembly includes a bearing housing, on which a discharge hopper is provided, and a discharge pipe is connected to the discharge hopper. A gap separator is fixedly connected to the lower part of the discharge hopper. A main shaft runs longitudinally through the discharge hopper and the gap separator. The upper end of the main shaft is connected to the drive assembly, and the lower end of the main shaft is connected to a cylindrical rotor. The cylindrical rotor is enclosed in the gap separator and rotates relative to the gap separator under the drive of the main shaft. The outer barrel is provided with an inlet pipe at its bottom, and the bearing seat assembly covers the top of the outer barrel. The cylindrical rotor has an open top and a closed periphery and bottom. Gaps are reserved between the bottom of the cylindrical rotor and the inner bottom surface of the outer barrel, between the periphery of the cylindrical rotor and the inner side wall of the outer barrel, and between the inner wall of the cylindrical rotor and the slot separator, which together form a labyrinth flow channel around the cylindrical rotor. In the working state, the material is pumped into the labyrinth flow channel from the inlet pipe. Driven by the rotation of the cylindrical rotor, it undergoes radial diffusion, axial rise and circumferential rotation. It enters the interior of the cylindrical rotor and flows through the slot separator to complete filtration. Finally, it enters the discharge hopper and is discharged from the discharge pipe. The main shaft has an axially formed main flushing channel inside, and a number of secondary flushing channels connected to the main flushing channel are formed radially corresponding to the position of the gap separator. The cleaning fluid flows through the main flushing channel and the secondary flushing channels, and performs a rotary sweeping reverse flushing of the gap separator under the action of the rotation of the main shaft.

[0008] Furthermore, the labyrinthine flow channel is filled with grinding media; several stirring rods are provided on the outer peripheral wall of the cylindrical rotor; the cylindrical rotor has a media discharge groove in the area corresponding to the slit separator, the width of the media discharge groove is greater than the diameter of the grinding media; a material feeding disc is also fixedly connected to the main shaft. When the cylindrical rotor rotates, the stirring rods drive the grinding media to move to grind the material, and at the same time, the material feeding disc pushes the grinding media outward, so that the grinding media is discharged from the media discharge groove. The discharge medium groove is a long, longitudinally oriented groove; the direction of the discharge medium groove is matched with the upward and swirling flow direction of the material in the labyrinth flow channel, so that the grinding medium follows the flow of the material and is smoothly discharged along the discharge medium groove under the centrifugal pushing action of the feeding disc.

[0009] Furthermore, the rotating engagement portion of the main shaft and the gap separator is provided with a wear-resistant sleeve mounted on the main shaft and a wear-resistant ring mounted on the gap separator. The wear-resistant sleeve is rotatably disposed relative to the wear-resistant ring, and the fit gap between the wear-resistant sleeve and the wear-resistant ring is smaller than the diameter of the grinding medium.

[0010] Furthermore, the drive assembly includes a motor, a drive pulley, a driven pulley, and a transmission belt. The motor drives the drive pulley and drives the driven pulley to rotate through the transmission belt. The upper end of the main shaft is connected to the driven pulley. The driven pulley has a larger diameter than the driving pulley, so as to provide a greater output torque to the main shaft through the reduction transmission.

[0011] Furthermore, the frame assembly includes a base and a lifting head that can be raised and lowered relative to it, and the bearing housing assembly and drive assembly are mounted on the lifting head; the base is provided with a lifting mechanism that drives the lifting head to move; a support frame extends from the bottom of the base, and a guide rail is mounted on the support frame; guide seats are provided on both sides of the outer barrel, and guide wheels mounted on the guide seats can roll along the guide rail to realize the lateral movement of the outer barrel; A movable bead-loading cart is provided within the space enclosed by the support frame. The bead-loading cart is located below the bottom cover of the outer barrel and is equipped with a handle and a quick-release valve.

[0012] Furthermore, the cylindrical rotor includes a rotor bottom cover located at the bottom, and the lower surface of the rotor bottom cover is machined with a ring-shaped convex structure, which is used to generate additional shearing and tumbling effects on the material on the bottom surface of the outer barrel during rotation. The downward protrusion depth of the embossed structure is H1, the axial clearance height between the lower surface of the rotor bottom cover and the inner bottom surface of the outer barrel is H2, and the ratio of H1 to H2 is in the range of 1~2:10.

[0013] Furthermore, a mechanical seal structure is provided between the discharge hopper and the main shaft. The mechanical seal structure includes a flange fixed to the discharge hopper, a stationary ring disposed on the flange near the main shaft, and a clamping element disposed on the flange for pressing the stationary ring. A kit is fixedly connected to the main shaft, and a rotating ring is disposed on the kit. The kit is provided with a spring that provides axial clamping force to press the rotating ring toward the stationary ring, thereby achieving a rotary dynamic seal and preventing air from entering the discharge hopper and generating air bubbles.

[0014] Furthermore, the lifting head extends outward from the base in a horizontal direction, forming an L-shaped support frame together with the base; the support frame is arranged along the extension direction of the lifting head, and the horizontal length of the support frame is greater than the horizontal extension length of the lifting head; the bearing housing assembly is installed at the far end of the horizontal extension of the lifting head, so that the center of gravity projection of the bearing housing assembly is close to the center of the area covered by the support frame, thereby improving the anti-overturning stability and operational smoothness of the equipment under dynamic load.

[0015] Furthermore, the outer barrel includes an outer wall cylinder and an inner cylinder, with a jacket space formed between the outer wall cylinder and the inner cylinder, and a spiral guide plate is provided in the jacket space; The lower end of the main shaft is provided with a square section, and a threaded section is provided below the square section; an assembly plate is provided inside the cylindrical rotor, and a square hole is provided in the assembly plate; the square section is inserted into the square hole, and a nut is screwed into the threaded section to fix the main shaft to the assembly plate; the medium discharge groove is opened on the wall surface of the cylindrical rotor above the assembly plate.

[0016] Furthermore, a temperature sensor for monitoring the material temperature is installed on the discharge pipe; a first liquid level sensor located at a high position and a second liquid level sensor located at a low position are provided in the discharge hopper for monitoring the material level status.

[0017] Compared with the prior art, the beneficial effects of the present invention are: This invention integrates dispersion, stirring, grinding, and precision filtration into a single vertical, enclosed device. Materials pass through a three-dimensional labyrinthine flow channel composed of a rotor, outer barrel, and filter screen, undergoing thorough shearing, mixing, and grinding, significantly shortening the process flow and improving processing efficiency. Secondly, this equipment features online self-cleaning capabilities; the main shaft has a built-in rotating flushing channel that performs reverse-sweeping flushing of the filter screen, effectively preventing clogging and reducing downtime for maintenance. Through the combination of wear-resistant sleeves and rings, along with a mechanical seal structure, it is adapted to process high-viscosity materials, extending the lifespan of key components and preventing bubble formation. This ensures product quality while improving equipment utilization, production continuity, and adaptability to various operating conditions, making it suitable for the efficient, energy-saving, and intelligent processing of medium- and high-viscosity coatings and slurries. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and are used together with the embodiments of the invention to explain the invention. They do not constitute a limitation of the invention. In the drawings: Figure 1 This is a structural schematic diagram of a vertical integrated coating dispersion, mixing, and online filtration device; Figure 2 This is a side view of a vertical integrated coating dispersion, mixing, and online filtration system; Figure 3 This is a cross-sectional view of a vertical integrated coating dispersion, mixing, and online filtration system; Figure 4 yes Figure 3 Enlarged view of circle A in the middle; Figure 5 This is a schematic diagram of the structure of a vertical integrated coating dispersion, mixing, and online filtration equipment with the bearing housing assembly removed. Figure 6This is a structural diagram of the bearing housing assembly and the outer barrel. Figure 1 ; Figure 7 This is a structural diagram of the bearing housing assembly and the outer barrel. Figure 2 ; Figure 8 This is a cross-sectional view of the bearing housing assembly and the outer barrel; Figure 9 yes Figure 8 Enlarged view of circle B in the middle; Figure 10 This is a diagram showing the positional relationship between the raised texture on the rotor bottom cover and the outer barrel; Figure 11 This is a schematic diagram showing the connection status of the bearing housing, discharge hopper, and gap separator; Figure 12 yes Figure 11 Enlarged view of circle C; Figure 13 This is a schematic diagram of the structure of a cylindrical rotor. Figure 1 ; Figure 14 This is a schematic diagram of the structure of a cylindrical rotor. Figure 2 ; Figure 15 This is a schematic diagram showing the connection between the slot separator and the discharge hopper; Figure 16 This is a schematic diagram of the mechanical seal structure at the junction of the main shaft and the discharge hopper.

[0019] In the diagram: 1. Drive assembly; 2. Bearing housing assembly; 201. Bearing housing; 202. Discharge hopper; 203. Discharge pipe; 3. Outer barrel; 301. Outer wall cylinder; 302. Inner cylinder; 303. Spiral guide plate; 4. Gap separator; 5. Main shaft; 501. Main flushing channel; 502. Secondary flushing channel; 503. Square section; 504. Threaded section; 6. Cylindrical rotor; 601. Discharge medium tank; 602. Assembly plate; 603. Square hole; 604. Rotor bottom cover; 7. Feed pipe; 8. Stirring rod; 9. Feeding disc; 10. 11. Wear-resistant sleeve; 12. Wear-resistant ring; 13. Motor; 14. Drive pulley; 15. Driven pulley; 16. Base; 17. Lifting head; 18. Lifting mechanism; 19. Support frame; 20. Guide rail; 21. Guide seat; 22. Guide wheel; 23. Bead loading cart; 24. Handle; 25. Quick-release valve; 26. Roughed structure; 27. Flange; 28. Stationary ring; 29. ​​Clamping component; 30. Kit; 31. Moving ring; 32. Spring; 33. Nut; 34. Temperature sensor; 35. First liquid level sensor; 36. Second liquid level sensor. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] like Figures 1 to 16 As shown, this invention claims protection for a vertical integrated coating dispersion, stirring, and online filtration device, which integrates dispersion, stirring, grinding, filtration, and online cleaning functions into a vertical device, thereby achieving continuous and efficient processing of medium- and high-viscosity coating slurries.

[0022] This invention relates to a vertical integrated coating dispersion, mixing, and online filtration device, comprising a frame assembly, a drive assembly 1, a bearing housing assembly 2, and an outer tank 3. The frame assembly serves as the basic load-bearing structure of the entire device. Both the drive assembly 1 and the bearing housing assembly 2 are mounted on the frame assembly. The bearing housing assembly 2 specifically includes a bearing housing 201, on which a discharge hopper 202 is provided. A discharge pipe 203 is connected to the discharge hopper 202 for the final discharge of materials. Directly below the discharge hopper 202, a slotted separator 4 is fixedly installed. The slotted separator 4 is a cylindrical filter screen structure whose function is to intercept larger diameter particles.

[0023] A main shaft 5 runs longitudinally through the entire discharge hopper 202 and the central slot separator 4. The upper end of the main shaft 5 is connected to the output end of the drive assembly 1 to obtain rotational power; the lower end of the main shaft 5 is fixedly connected to a cylindrical rotor 6. The cylindrical rotor 6 is enclosed on the outside of the slot separator 4. When the main shaft 5 is driven, the cylindrical rotor 6 rotates at high speed, while the internal slot separator 4 remains stationary, and the two rotate relative to each other.

[0024] The outer barrel 3 is an open-top container, and an inlet pipe 7 is installed at the bottom of the outer barrel 3 for pumping in the slurry to be processed. During operation, the bearing housing assembly 2 covers the top of the outer barrel 3, forming a sealed working chamber. The cylindrical rotor 6 is designed as a cylindrical structure with an open top and closed peripheral walls and bottom. The gaps reserved between the cylindrical rotor 6, the outer barrel 3, and the internal gap separator 4 include: An axial gap is formed between the bottom of the cylindrical rotor 6 and the inner bottom surface of the outer barrel 3.

[0025] An annular radial gap is formed between the circumferential wall of the cylindrical rotor 6 and the inner side wall of the outer barrel 3.

[0026] An internal annular gap is formed between the inner wall of the cylindrical rotor 6 and the outer surface of the slot separator 4.

[0027] These three gaps are interconnected, together forming a three-dimensional labyrinthine flow channel with a tortuous path that surrounds the cylindrical rotor 6.

[0028] The workflow is as follows: Medium-to-high viscosity slurry is pumped into the bottom of the outer tank 3 through the feed pipe 7. Driven by the pump pressure and the rotating cylindrical rotor 6, the material first enters the bottom axial gap, then is thrown into the annular radial gap and moves upward, before turning and flowing into the inner annular gap. In this labyrinthine flow channel, in conjunction with the material input from the supply pump, the material undergoes intense radial diffusion, axial ascent, and circumferential swirling, receiving thorough stirring, shearing, and mixing, extending the processing path and ensuring thorough grinding. Finally, the material enters the interior of the cylindrical rotor 6 through the upper opening and is forced through the stationary slot separator 4. At this point, the material that meets the particle size requirements enters the discharge hopper 202 through the filter slots and is discharged as the finished product via the discharge pipe 203; while incompletely dispersed particles or impurities are trapped outside the slot separator 4.

[0029] To achieve online cleaning and prevent filter clogging, a main flushing channel 501 is formed along the axis inside the main shaft 5, and several secondary flushing channels 502, communicating with the main channel, are radially formed on the shaft corresponding to the filtration area of ​​the slot separator 4. When cleaning is required, a cleaning fluid, such as solvent, water, or gas, is introduced. The fluid flows down along the main flushing channel 501 and is ejected from each secondary flushing channel 502. Because the main shaft 5 and the secondary channels themselves rotate at high speed, the ejected cleaning fluid forms a rotating sweeping water jet or air jet, performing a rotary reverse flushing of the inner wall of the slot separator 4, efficiently removing filter cake or blockages adhering to the filter gaps without requiring shutdown for disassembly and cleaning. This technical solution utilizes the main shaft 5 to design the above-mentioned flushing structure, which can rotate and clean under the drive of the main shaft 5, making it compact and efficient.

[0030] The three-dimensional labyrinthine channel is filled with grinding media of a specific particle size, such as zirconia beads and glass beads. To enhance stirring and drive the movement of the grinding media, several stirring rods 8 are uniformly welded to the outer peripheral wall of the cylindrical rotor 6.

[0031] A media discharge groove 601 is formed on the cylindrical rotor 6, and the width of the media discharge groove 601 is larger than the diameter of the grinding media. A material feeding disc 9 is also fixedly connected to the main shaft 5, located above the interior of the cylindrical rotor 6. During operation, the rotating stirring rod 8 drives the grinding media and materials to move violently within the labyrinthine flow channel, colliding, squeezing, and shearing the particles in the material to achieve ultrafine dispersion and grinding. Simultaneously, the rotating material feeding disc 9 generates centrifugal force, continuously pushing the grinding media near the main shaft 5 outwards. The media discharge groove 601 is designed as a longitudinally opened elongated groove, its direction aligning with the mainstream direction of the material's upward and swirling movement within the labyrinthine flow channel. During operation, the discharge medium trough 601 follows the material as it rises axially and rotates circumferentially between the cylindrical rotor 6 and the outer barrel 3, entering the space between the cylindrical rotor 6 and the gap separator 4. This allows the grinding medium to be smoothly discharged along the discharge medium trough 601 back to the space between the cylindrical rotor 6 and the outer barrel 3 to grind the material under the centrifugal movement of the feeding disc 9 and the carrying of the material fluid, thus forming a circulating swirling flow and preventing accumulation inside the cylindrical rotor 6.

[0032] Specifically, during operation, the discharge medium trough 601 forms a directional selective circulation channel. Under the centrifugal agitation of the feeding disc 9 and the carrying effect of the upward flow of material, the grinding medium inside the cylindrical rotor 6 is pushed to the vicinity of the rotor wall and smoothly discharged outward through the discharge medium trough 601 into the annular radial gap between the cylindrical rotor 6 and the outer barrel 3, continuing to participate in the grinding cycle. At the same time, since the labyrinth flow channel has an overall upward, swirling, and turning path layout, the material and grinding medium in the annular radial gap and the bottom axial gap continue to move upward under the drive of the stirring rod 8, and enter the interior of the cylindrical rotor 6 through the upper opening, thereby forming a directional circulating swirling flow path of the outer side of the rotor, the upper opening of the rotor, the inner side of the rotor, the discharge medium trough, and the outer side of the rotor. The media discharge tank 601 mainly serves as a unidirectional outlet channel for grinding media from the inside to the outside, rather than a main inlet channel for media and materials. Therefore, the inlet and outlet are staggered in spatial path, and no convection collision will occur, thus ensuring the smoothness and directionality of the circulation flow.

[0033] Furthermore, after grinding and dispersing, the material that meets the particle size requirements enters the cylindrical rotor 6 with the fluid. Driven primarily by the dynamic pressure generated by the fluid pressure and rotor rotation, it passes from the outside to the inside through the stationary slit separator 4 and is discharged into the discharge hopper 202. While the opening size of the discharge medium trough 601 is larger than the diameter of the grinding media, its longitudinal trough shape aligns with the mainstream swirling direction of the material. Under the combined action of the centrifugal force field and the fluid drag, the fluid near the trough opening primarily carries the grinding media outwards. The fine material that meets the particle size requirements experiences less outward drag in this area and tends to move upwards along the inner wall of the rotor with the mainstream, completing filtration and separation through the slit separator 4. Therefore, the finished material does not preferentially exit from the discharge medium trough 601, thus ensuring filtration and separation efficiency.

[0034] In this embodiment, a wear-resistant structure is provided at the rotating engagement part between the main shaft 5 and the stationary gap separator 4. Specifically, a wear-resistant sleeve 10 is mounted on the main shaft 5, and a wear-resistant ring 11 is mounted on the gap separator 4, and the two rotate relative to each other. The fit gap between the two is less than the minimum diameter of the grinding media. For example, if the grinding balls are set to have a diameter of 1.0 mm, the fit gap between the wear-resistant sleeve 10 and the wear-resistant ring 11 is 0.5 mm. This ensures that the grinding balls cannot enter the cylindrical rotor 6 through the precise fit gap between the wear-resistant sleeve 10 and the wear-resistant ring 11, thereby effectively confining the grinding media in the labyrinth channel, extending its contact and action path with the material, and improving the grinding and dispersion efficiency. By using the gap assembly method of the wear-resistant sleeve 10 and the wear-resistant ring 11 to replace the traditional rolling bearing, it is particularly suitable for the operating conditions where the main shaft 5 and the gap separator 4 are immersed in high-viscosity slurry containing solid particles for a long time. This avoids the rapid wear and damage of the rolling bearing due to lubrication failure and particle intrusion in this harsh environment, and improves the reliability and service life of this key rotating part.

[0035] The drive assembly 1 adopts a belt drive and includes a motor 12, a drive pulley 13, a driven pulley 14, and a drive belt. The diameter of the driven pulley 14 is larger than that of the drive pulley 13, forming a reduction gear transmission structure. This allows the motor 12 to operate in a high-efficiency, high-speed range, while the reduction gear provides greater output torque to the main shaft 5 to overcome the huge rotational resistance caused by high-viscosity materials, ensuring the strength of stirring and dispersion.

[0036] The frame assembly includes a base 16 and a lifting head 17. The bearing housing assembly 2 and the drive assembly 1 are integrally mounted on the lifting head 17. A lifting mechanism 18 is provided within the base 16. In this embodiment, the lifting mechanism 18 can be a hydraulic cylinder or a lead screw, which can drive the lifting head 17 and the entire upper assembly to lift together. A support frame 19 extends forward from the bottom of the base 16, and a guide rail 20 is mounted on the support frame 19. Guide seats 21 with guide wheels 22 are mounted on both sides of the outer tub 3. When it is necessary to clean the outer tub 3 or maintain the bottom, simply raise the lifting head 17, causing the bearing housing assembly 2 to rise and separate from the outer tub 3. The outer tub 3 can then be easily moved laterally along the guide rail 20 via the guide wheels 22, greatly simplifying maintenance operations. The space below the support frame 19 is also equipped with a bead-loading cart 23 with a handle 24 and a quick-release valve 25. The handle 24 facilitates pushing and pulling the bead-loading cart 23, and the quick-release valve 25 facilitates the discharge of materials from the bead-loading cart 23. When it is necessary to clean the outer barrel 3, the lower end cover of the outer barrel 3 is opened, and the materials and grinding media will fall into the bead-loading cart 23. The bead-loading cart 23 is designed to facilitate the recycling of grinding media.

[0037] The bottom of the cylindrical rotor 6 is sealed by an independent rotor bottom cover 604. The lower surface of the rotor bottom cover 604 is machined with annularly distributed raised textures 26. When the rotor rotates, these raised textures 26 can generate additional shearing and tumbling action on the viscous material deposited at the bottom of the outer barrel 3, completely eliminating the dead zone of agitation. As a preferred embodiment, the ratio of the protrusion depth H1 of the raised texture to the gap height H2 between the bottom cover and the bottom of the barrel is controlled between 1:10 and 2:10. This ratio ensures that the raised texture has sufficient agitation depth while also providing sufficient clearance for safe operation to avoid scraping the bottom of the barrel.

[0038] As a further improvement, a mechanical seal structure is provided between the discharge hopper 202 and the high-speed rotating main shaft 5. The mechanical seal structure includes a flange 27 fixed to the discharge hopper 202, with a stationary ring 28 embedded within it. This stationary ring 28 is pressed down by a clamping member 29, which is bolted onto the clamping member 29 and locked to the flange 27, thus holding the stationary ring 28 in place. A rotating ring 31 is fixed to the main shaft 5 via a fitting 30, which is also bolted to the main shaft 5. A spring 32 provides a constant axial clamping force to the rotating ring 31, ensuring a tight fit between the end face of the rotating ring 31 and the end face of the stationary ring 28. This structure forms a reliable dynamic seal at the rotating interface, effectively preventing external air from seeping into the discharge hopper 202 from the joint between the main shaft 5 and the discharge hopper 202, thereby avoiding air bubbles in the finished product and ensuring its appearance and quality.

[0039] In this technical solution, the lifting head 17 extends horizontally forward from the base 16, forming a stable L-shaped support frame together with the vertical base 16. The length of the lower support frame 19 is greater than the overhang length of the lifting head 17. Heavy-duty components such as the bearing housing assembly 2 are installed at the far end of the lifting head 17. This design ensures that during equipment operation, the center of gravity projection of the upper moving parts falls within the stable support surface formed by the support frame 19 and the base 16, improving the anti-tipping stability and operational smoothness of the equipment under dynamic conditions such as high speed and uneven load.

[0040] In this embodiment, the outer barrel 3 adopts a jacketed design, including an outer wall cylinder 301 and an inner cylinder 302, forming a jacketed space in the middle, in which a spiral guide plate 303 is installed. Cooling water or heat transfer oil can be introduced to control the temperature of the material inside the barrel.

[0041] The cylindrical rotor 6 is connected to the main shaft 5 via an internal mounting plate 602. The lower end of the main shaft 5 is machined with a square section 503 and a threaded section 504. The mounting plate 602 has corresponding square holes 603. The main shaft 5 is assembled by inserting the square section 503 into the square hole 603, which prevents slippage. The connection is secured with a nut 33 on the threaded section 504, ensuring a firm and reliable connection. The media discharge groove 601 is located on the wall of the cylindrical rotor 6 above the mounting plate 602 to facilitate the circulation and grinding of the grinding media near the upper part of the cylindrical rotor 6.

[0042] Inside the discharge hopper 202, a high-level first liquid level sensor 35 and a low-level second liquid level sensor 36 are respectively installed. When the material level rises to the sensing range of the first liquid level sensor 35, the control system triggers the discharge pump connected to the discharge pipe 203 to start, pumping out the filtered material. The discharge pump continues to run until the material level drops below the sensing range of the first liquid level sensor 35 and no longer triggers the second liquid level sensor 36. At this point, the control system can delay for 3 to 5 seconds before shutting down the discharge pump to avoid frequent start-stop of the pump at the material level critical point. When the material level drops to the sensing range of the second liquid level sensor 36, the control system triggers the supply pump connected to the inlet pipe 7 to start, pumping the material to be processed into the equipment. The supply pump continues to run until the material level rises above the sensing range of the second liquid level sensor 36 and no longer triggers the first liquid level sensor 35. At this point, the control system delays for 3 to 5 seconds before shutting down the supply pump. By cooperating with the first liquid level sensor 35 and the second liquid level sensor 36, and combining with the delayed start-stop control logic, the material level in the discharge hopper 202 is automatically adjusted in a closed loop within the upper and lower threshold ranges, thereby completing the automatic replenishment and continuous and stable discharge of materials, enabling the system to operate continuously and stably in an unattended state.

[0043] Meanwhile, a temperature sensor 34 is installed on the discharge pipe 203 to monitor and provide feedback on the temperature of the final output material in real time.

[0044] This invention integrates dispersion, stirring, grinding, and precision filtration into a single vertical, enclosed device. Materials pass through a three-dimensional labyrinthine flow channel comprised of a rotor, outer barrel 3, and filter screen, undergoing thorough shearing, mixing, and grinding, significantly shortening the process flow and improving processing efficiency. Furthermore, the device features online self-cleaning capabilities; the main shaft 5 has a built-in rotating flushing channel that performs reverse-sweeping flushing of the filter screen, effectively preventing clogging and reducing downtime for maintenance. The combination of wear-resistant sleeves 10 and wear-resistant rings 11, along with a mechanical seal structure, adapts to the processing of high-viscosity materials, extending the lifespan of key components and preventing bubble formation. This ensures product quality while improving equipment utilization, production continuity, and operational adaptability, making it suitable for the efficient, energy-saving, and intelligent processing of medium- and high-viscosity coatings and slurries.

[0045] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vertical integrated coating dispersion, mixing, and online filtration device, characterized in that, include: A frame assembly, and a drive assembly, a bearing housing assembly, and an outer barrel disposed on the frame assembly; The bearing housing assembly includes a bearing housing, on which a discharge hopper is provided, and a discharge pipe is connected to the discharge hopper. A gap separator is fixedly connected to the lower part of the discharge hopper. A main shaft runs longitudinally through the discharge hopper and the gap separator. The upper end of the main shaft is connected to the drive assembly, and the lower end of the main shaft is connected to a cylindrical rotor. The cylindrical rotor is enclosed in the gap separator and rotates relative to the gap separator under the drive of the main shaft. The outer barrel is provided with an inlet pipe at its bottom, and the bearing seat assembly covers the top of the outer barrel. The cylindrical rotor has an open top and a closed periphery and bottom. Gaps are reserved between the bottom of the cylindrical rotor and the inner bottom surface of the outer barrel, between the periphery of the cylindrical rotor and the inner side wall of the outer barrel, and between the inner wall of the cylindrical rotor and the slot separator, which together form a labyrinth flow channel around the cylindrical rotor. In the working state, the material is pumped into the labyrinth flow channel from the inlet pipe. Driven by the rotation of the cylindrical rotor, it undergoes radial diffusion, axial rise and circumferential rotation. It enters the interior of the cylindrical rotor and flows through the slot separator to complete filtration. Finally, it enters the discharge hopper and is discharged from the discharge pipe. The main shaft has an axially formed main flushing channel inside, and a number of secondary flushing channels connected to the main flushing channel are formed radially corresponding to the position of the gap separator. The cleaning fluid flows through the main flushing channel and the secondary flushing channels, and performs a rotary sweeping reverse flushing of the gap separator under the action of the rotation of the main shaft.

2. The vertical integrated coating dispersion, mixing, and online filtration equipment according to claim 1, characterized in that, The labyrinthine flow channel is filled with grinding media; several stirring rods are provided on the outer peripheral wall of the cylindrical rotor; the cylindrical rotor has a media discharge groove in the area corresponding to the slit separator, and the width of the media discharge groove is greater than the diameter of the grinding media; a material feeding disc is also fixedly connected to the main shaft. When the cylindrical rotor rotates, the stirring rods drive the grinding media to move to grind the material, and at the same time, the material feeding disc pushes the grinding media outward, so that the grinding media is discharged from the media discharge groove. The discharge medium trough is a long, longitudinally shaped trough; The orientation of the discharge medium groove is matched with the upward and swirling flow direction of the material in the labyrinth flow channel, so that the grinding medium follows the flow of the material and is smoothly discharged along the discharge medium groove under the centrifugal pushing action of the feeding disc.

3. The vertical integrated coating dispersion, mixing, and online filtration equipment according to claim 2, characterized in that, The rotating engagement part of the main shaft and the gap separator is provided with a wear-resistant sleeve mounted on the main shaft and a wear-resistant ring mounted on the gap separator. The wear-resistant sleeve is rotatably arranged relative to the wear-resistant ring, and the fit gap between the wear-resistant sleeve and the wear-resistant ring is smaller than the diameter of the grinding medium.

4. The vertical integrated coating dispersion, mixing, and online filtration equipment according to claim 1, characterized in that, The drive assembly includes a motor, a drive pulley, a driven pulley, and a transmission belt. The motor drives the drive pulley and drives the driven pulley to rotate through the transmission belt. The upper end of the main shaft is connected to the driven pulley. The driven pulley has a larger diameter than the driving pulley, so as to provide a greater output torque to the main shaft through the reduction transmission.

5. The vertical integrated coating dispersion, mixing, and online filtration equipment according to claim 1, characterized in that, The frame assembly includes a base and a lifting head that can be raised and lowered relative to it. The bearing housing assembly and drive assembly are mounted on the lifting head. The base is provided with a lifting mechanism that drives the lifting head to move. A support frame extends from the bottom of the base, and a guide rail is mounted on the support frame. Guide seats are provided on both sides of the outer barrel, and guide wheels mounted on the guide seats can roll along the guide rail to realize the lateral movement of the outer barrel. A movable bead-loading cart is provided within the space enclosed by the support frame. The bead-loading cart is located below the bottom cover of the outer barrel and is equipped with a handle and a quick-release valve.

6. The vertical integrated coating dispersion, mixing, and online filtration equipment according to claim 2, characterized in that, The cylindrical rotor includes a rotor bottom cover located at the bottom. The lower surface of the rotor bottom cover is machined with a ring-shaped convex structure, which is used to generate additional shearing and tumbling action on the material on the bottom surface of the outer barrel during rotation. The downward protrusion depth of the embossed structure is H1, the axial clearance height between the lower surface of the rotor bottom cover and the inner bottom surface of the outer barrel is H2, and the ratio of H1 to H2 is in the range of 1~2:

10.

7. The vertical integrated coating dispersion, mixing, and online filtration equipment according to claim 1, characterized in that, A mechanical seal structure is provided between the discharge hopper and the main shaft. The mechanical seal structure includes a flange fixed to the discharge hopper, a stationary ring disposed on the flange near the main shaft, and a clamping element disposed on the flange for pressing the stationary ring. A kit is fixedly connected to the main shaft, and a rotating ring is disposed on the kit. A spring is disposed on the kit to provide axial clamping force for pressing the rotating ring toward the stationary ring, thereby achieving a rotary dynamic seal and preventing air from entering the discharge hopper and generating air bubbles.

8. The vertical integrated coating dispersion, mixing, and online filtration equipment according to claim 5, characterized in that, The lifting head extends outward from the base in a horizontal direction, forming an L-shaped support frame together with the base; the support frame is arranged along the extension direction of the lifting head, and the horizontal length of the support frame is greater than the horizontal extension length of the lifting head; the bearing seat assembly is installed at the far end of the horizontal extension of the lifting head, so that the center of gravity projection of the bearing seat assembly is close to the center of the area covered by the support frame, thereby improving the anti-overturning stability and operational smoothness of the equipment under dynamic load.

9. The vertical integrated coating dispersion, mixing, and online filtration equipment according to claim 3, characterized in that, The outer barrel includes an outer wall cylinder and an inner cylinder, and a jacket space is formed between the outer wall cylinder and the inner cylinder. A spiral guide plate is provided in the jacket space. The lower end of the main shaft is provided with a square section, and a threaded section is provided below the square section; an assembly plate is provided inside the cylindrical rotor, and a square hole is provided in the assembly plate; the square section is inserted into the square hole, and a nut is screwed into the threaded section to fix the main shaft to the assembly plate; the medium discharge groove is opened on the wall surface of the cylindrical rotor above the assembly plate.

10. The vertical integrated coating dispersion, mixing, and online filtration equipment according to claim 1, characterized in that, The discharge pipe is equipped with a temperature sensor for monitoring the material temperature; the discharge hopper is equipped with a first liquid level sensor located at a high position and a second liquid level sensor located at a low position for monitoring the material level status.

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