Waterborne epoxy paint tinting device with filtering function

Abstract

The utility model relates to paint mixing equipment technical field, especially with filter function's waterborne epoxy paint mixing device, including jar body, the top of jar body inner chamber is welded with baffle, the top of baffle is equipped with the stirring rod through bearing penetration, the left and right sides of stirring rod all are equipped with the rotating rod through bearing, the top fixed sleeve of rotating rod is equipped with gear. The filter residue cylinder carries out primary filtration to the impurity in raw material, and the filtered raw material flows into the jar body, opens the discharge valve, and the paint flows into the filter residue box, and the filter screen shell carries out secondary fine filtration to the paint, effectively removes the impurity, improves the paint quality, and the gear is driven to move in the gear ring circumference when the stirring rod rotates and rotates through the meshing connection, and the shearing blade on the rotating rod surface rotates at high speed and carries out shearing to the agglomerated particle in the paint, so that the mixing function of stirring rod is cooperated, and the dispersion effect is effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of paint mixing equipment, specifically a water-based epoxy paint mixing device with filtration function. Background Technology

[0002] Waterborne epoxy coatings are environmentally friendly coatings that use water as a solvent or dispersion medium. They have advantages such as being environmentally friendly and having low VOC emissions, and are widely used in the field of industrial corrosion protection. During the paint mixing process, epoxy resin, curing agent, pigments and additives need to be mixed and stirred.

[0003] A search revealed that the announcement number CN221386144U, entitled "A Paint Mixing Device for the Production of Water-Based Anti-Rust Epoxy Zinc-Rich Primer," includes a housing, a processing box, and a motor housing. Research and analysis revealed that although the third rotating shaft, turntable, and ball bearings work together to drive the processing box and the mixing and cleaning device to rotate in opposite directions, ensuring stable and thorough mixing of the primer within the processing box and thus improving the mixing quality and production quality of the primer, the following defects still exist to some extent.

[0004] For example, the filtration function is insufficient. The above-mentioned paint mixing device requires additional equipment for filtration, which results in cumbersome procedures and incomplete filtration. If there are impurities in the raw materials or particles generated during stirring, it will affect the uniformity of the paint and the construction effect. At the same time, it is inconvenient to clean the inside of the equipment, which requires manual cleaning by personnel, increasing the workload. Moreover, it is impossible to shear the agglomerated particles in the paint during the stirring process, resulting in unsatisfactory dispersion and poor mixing uniformity. In order to solve the above technical problems, we have designed a water-based epoxy paint mixing device with filtration function. Utility Model Content

[0005] The purpose of this invention is to provide a water-based epoxy coating mixing device with a filtration function. It has the advantages of two-stage filtration, which effectively removes impurities, improves coating quality, can automatically clean, reduces workload, has better shearing and dispersion effect, and improves mixing uniformity. It solves the problems of impurity removal, which affects the coating construction effect, the need for manual cleaning, which increases workload, unsatisfactory dispersion and shearing effect, and poor mixing uniformity.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a water-based epoxy coating mixing device with filtration function, comprising a tank body, a partition welded to the top of the inner cavity of the tank body, a stirring rod installed through the top of the partition through a bearing, rotating rods installed on both sides of the stirring rod through bearings, a gear fixedly sleeved on the top of the rotating rod, a shearing blade installed on the surface of the rotating rod, a gear ring welded to the side wall of the bottom inner cavity of the partition, a first cleaning pipe and a second cleaning pipe respectively installed on the top of the partition, a feeding mechanism installed through the left side of the top of the tank body, a drive motor installed in the middle of the top of the tank body by bolts, a discharge pipe connected to the bottom of the tank body, a discharge valve sleeved on the bottom of the surface of the discharge pipe, a filter cake box welded to the bottom of the discharge valve, a circulation pump provided on the right side of the outer shell, a lower three-way valve installed at the inlet end of the circulation pump, and an upper three-way valve installed at the outlet pipe of the circulation pump.

[0007] Preferably, the feeding mechanism includes a feeding hopper, the bottom of which is penetrated by a partition plate, a filter cylinder is inserted into the inner cavity of the feeding hopper, and a top cover is threaded onto the top of the feeding hopper, with a feeding pipe connected to the top of the top cover.

[0008] Preferably, the outer surface of the tank is welded with a shell, and the side walls and bottom of the inner cavity of the shell are bolted with electric heaters. A temperature sensor is installed through the bottom of the tank, and the bottom of the temperature sensor and the discharge pipe both extend to the outside of the shell. A support frame is welded to the bottom of the outer surface of the shell, and a main control box is bolted to the front side of the top right side of the support frame.

[0009] Preferably, the top of the stirring rod extends through to the outside of the tank and is fixedly connected to the output shaft of the drive motor via a coupling; the top of the gear extends to the inner cavity at the bottom of the partition and meshes with the gear ring; and spray pipes are installed at the bottom of both the first and second cleaning pipes.

[0010] Preferably, scrapers are installed on the outer sides of both the left and right sides of the stirring rod, a filter screen shell is installed through the left side of the filter cake box by bolt sealing, and a conveying pipe is welded to the bottom of the filter cake box.

[0011] Preferably, a circulating material pipe is installed between the feed end at the bottom of the lower three-way valve and the discharge pipe, and a cleaning liquid pipe is connected to the feed end on the right side of the lower three-way valve. The liquid outlet pipes at the top and left side of the upper three-way valve both penetrate the tank body and are respectively connected to the second cleaning pipe and the baffle.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The filter cartridge filters impurities in the raw material once. The filtered raw material flows into the tank. When the discharge valve is opened, the coating flows into the filter cake box. The filter screen performs a second fine filtration of the coating, which effectively removes impurities and improves the quality of the coating.

[0013] When the stirring rod rotates, it drives the gear to move in a circular motion within the gear ring and rotates through meshing. The shearing blades on the surface of the rotating rod rotate at high speed to shear the agglomerated particles in the coating. This, combined with the mixing function of the stirring rod, effectively improves the dispersion effect.

[0014] The circulating pump draws the coating from the bottom through the circulating pipe and then flows it back into the tank through the outlet pipe on the left side of the upper three-way valve for circulation and stirring, thus preventing sedimentation at the bottom and improving the uniformity of mixing.

[0015] By opening the ports on the right side of the lower three-way valve and the upper three-way valve, the circulating pump delivers the cleaning fluid to the second cleaning pipe, which is then sprayed through the spray pipe to rinse the inner wall and agitator components of the tank. This automatic cleaning process greatly reduces the workload of personnel and improves cleaning efficiency. Attached Figure Description

[0016] Figure 1 This is an axonometric view of the structure of this utility model; Figure 2 This is a cross-sectional axonometric view of the tank body and outer shell of this utility model; Figure 3 This is a cross-sectional axonometric view of the tank body of this utility model; Figure 4 This is a rear axonometric view of the filter cake box and filter screen shell of this utility model.

[0017] In the diagram: 1. Tank body; 2. Support frame; 3. Outer shell; 4. Feeding mechanism; 5. Drive motor; 6. Upper three-way valve; 7. Circulation pump; 8. Lower three-way valve; 9. Cleaning liquid pipe; 10. Circulation material pipe; 11. Main control box; 12. Conveying pipe; 13. Filter residue box; 14. Injection pipe; 15. Top cover; 16. Filter residue cylinder; 17. Feed hopper; 18. Temperature sensor; 19. Discharge pipe; 20. Discharge valve; 21. Filter screen shell; 22. Electric heater; 23. First cleaning pipe; 24. Second cleaning pipe; 25. Spray pipe; 26. Gear; 27. Rotating rod; 28. Shearing blade; 29. ​​Scraper; 30. Gear ring; 31. Baffle plate; 32. Stirring rod. Detailed Implementation

[0018] Please see Figures 1-4A water-based epoxy coating mixing device with filtration function includes a tank body 1. A partition 31 is welded to the top of the inner cavity of the tank body 1. A stirring rod 32 is installed through the top of the partition 31 via a bearing. Rotating rods 27 are installed on both sides of the stirring rod 32 via bearings. A gear 26 is fixedly sleeved on the top of the rotating rod 27. A shearing blade 28 is installed on the surface of the rotating rod 27. A gear ring 30 is welded to the side wall of the bottom inner cavity of the partition 31. Both the gear ring 30 and the gear 26 are made of stainless steel. A first cleaning pipe 23 and a second cleaning pipe 24 are respectively installed on the top of the partition 31. By setting the first cleaning pipe 23, the gear ring 30 and the gear 26 can be easily cleaned. 6. Rinse to prevent paint adhesion from affecting meshing transmission. The first cleaning pipe 23 and the second cleaning pipe 24 are made of corrosion-resistant PTFE hoses. A feeding mechanism 4 is installed through the left side of the top of the tank 1. A drive motor 5 is installed in the middle of the top of the tank 1 by bolts. A discharge pipe 19 is connected to the bottom of the tank 1. A discharge valve 20 is installed on the bottom of the surface of the discharge pipe 19. A filter box 13 is welded to the bottom of the discharge valve 20. A circulation pump 7 is set on the right side of the outer shell 3. The impeller and pump shell of the circulation pump 7 can be made of 316 stainless steel. A lower three-way valve 8 is installed at the liquid inlet of the circulation pump 7. An upper three-way valve 6 is installed at the liquid outlet of the circulation pump 7. Please see Figure 2 The feeding mechanism 4 includes a feeding hopper 17, with a partition 31 penetrating the bottom of the feeding hopper 17. A filter cylinder 16 is inserted into the inner cavity of the feeding hopper 17. The filter screen of the filter cylinder 16 is 40 mesh. A top cover 15 is threaded onto the top of the feeding hopper 17. A feeding pipe 14 is connected to the top of the top cover 15. Please see Figure 2 The outer surface of the tank 1 is welded with an outer shell 3. The side walls and bottom of the inner cavity of the outer shell 3 are bolted with electric heaters 22. The electric heaters 22 are electric heating wires that can heat the coating in the tank 1 to ensure that the stirring is carried out at the optimal temperature and avoid viscosity increase and uneven stirring due to low temperature. A temperature sensor 18 is installed through the bottom of the tank 1. By setting the temperature sensor 18, the temperature information of the coating heating can be transmitted to the main control box 11. The main control box 11 can accurately control the stirring temperature. The bottom of the temperature sensor 18 and the discharge pipe 19 both extend to the outside of the outer shell 3. A support frame 2 is welded to the bottom of the outer surface of the outer shell 3. The main control box 11 is bolted to the front side of the top right side of the support frame 2. The main control box 11 integrates a temperature controller to regulate the temperature inside the tank 1. Please see Figure 2The top of the stirring rod 32 extends through to the outside of the tank 1 and is fixedly connected to the output shaft of the drive motor 5 via a coupling. The top of the gear 26 extends to the inner cavity at the bottom of the partition 31 and meshes with the gear ring 30. The bottoms of the first cleaning pipe 23 and the second cleaning pipe 24 are both connected to a spray pipe 25. Three to four high-pressure nozzles (0.5-1mm orifice diameter) are evenly arranged on the spray pipe 25. The nozzles are tilted at 45° toward the inner wall of the tank 1 to ensure that the rinsing covers the entire inner wall surface. Please see Figure 2 and Figure 4 Scrapers 29 are installed on the outer sides of both sides of the stirring rod 32. By setting scrapers 29, the coating adhering to the tank wall can be scraped off more thoroughly and discharged more effectively. At the same time, it is convenient to clean the tank wall. A filter screen shell 21 is installed through the left side of the filter cake box 13 by bolt sealing. The filter screen shell 21 is an 80-mesh fine filter screen. The bottom of the filter cake box 13 is welded and connected to the conveying pipe 12. Please see Figure 2 A circulating material pipe 10 is installed between the feed end at the bottom of the lower three-way valve 8 and the discharge pipe 19. The feed end on the right side of the lower three-way valve 8 is connected to the cleaning liquid pipe 9. The outer end of the cleaning liquid pipe 9 is connected to the external cleaning liquid delivery pipe. The liquid outlet pipes at the top and left side of the upper three-way valve 6 both pass through the tank body 1 and are connected to the second cleaning pipe 24 and the baffle 31 respectively.

[0019] In use, this device is powered by an external power source. The raw material enters the feed hopper 17 through the injection pipe 14. The filter cylinder 16 filters the impurities in the raw material once. The filtered raw material flows into the tank 1. After feeding is completed, the injection pipe 14 stops feeding. At this time, the drive motor 5 is controlled to work and drive the stirring rod 32 to rotate and stir the raw material. During the rotation of the stirring rod 32, the gear 26 at the top of the rotating rod 27 will rotate in a circular motion within the gear ring 30 and rotate through meshing. The shearing blades 28 on the surface of the rotating rod 27 will rotate at high speed to shear the agglomerated particles in the coating. This, combined with the mixing function of the stirring rod 32, effectively improves the dispersion effect. During the stirring process, the circulation pump 7 is controlled to work and draw the coating from the bottom through the circulation pipe 10. The liquid flows out and back into the tank 1 through the outlet pipe on the left side of the upper three-way valve 6 for circulation and stirring, avoiding sedimentation at the bottom and improving the uniformity of mixing. After stirring is completed, the discharge valve 20 is opened, and the coating flows into the filter residue box 13. The filter screen shell 21 performs secondary fine filtration on the coating, which effectively removes impurities and improves the quality of the coating. After discharge, the tank 1 needs to be cleaned in time. At this time, the ports on the right side of the lower three-way valve 8 and the upper three-way valve 6 are opened respectively. At this time, the circulation pump 7 works to deliver the cleaning liquid to the second cleaning pipe 24 through the cleaning liquid pipe 9, and then sprays it into the interior of the tank 1 through the spray pipe 25 to rinse the inner wall and the stirring components. This automatic cleaning greatly reduces the workload of personnel and improves the cleaning efficiency.

[0020] In summary, this water-based epoxy coating mixing device with filtration function, through the coordinated use of tank 1, feeding mechanism 4, drive motor 5, upper three-way valve 6, circulation pump 7, lower three-way valve 8, cleaning liquid pipe 9, filter screen shell 21, first cleaning pipe 23, second cleaning pipe 24, spray pipe 25, gear 26, shearing blade 28 and gear ring 30, solves the problems of impurities being unable to be removed, affecting the coating construction effect, requiring manual cleaning, increasing labor intensity, unsatisfactory dispersion and shearing effect, and poor mixing uniformity.

Claims

1. A water-based epoxy coating mixing device with filtration function, comprising a tank (1), characterized in that: A partition plate (31) is welded to the top of the inner cavity of the tank (1). A stirring rod (32) is installed through the top of the partition plate (31) via a bearing. Rotating rods (27) are installed on both the left and right sides of the stirring rod (32) via bearings. A gear (26) is fixedly sleeved on the top of the rotating rod (27). A shearing blade (28) is installed on the surface of the rotating rod (27). A gear ring (30) is welded to the side wall of the bottom inner cavity of the partition plate (31). A first cleaning pipe (23) and a second cleaning pipe (24) are respectively installed on the top of the partition plate (31). A feeding mechanism (4) is installed through the left side of the top of the tank (1). A drive motor (5) is installed in the middle of the top of the tank (1) via bolts. A discharge pipe (19) is connected to the bottom of the tank (1). The surface of the discharge pipe (19) is... A discharge valve (20) is installed at the bottom. A filter cake box (13) is welded to the bottom of the discharge valve (20). A shell (3) is welded to the outer surface of the tank (1). An electric heater (22) is installed on the side wall and bottom of the inner cavity of the shell (3) by bolts. A temperature sensor (18) is installed through the bottom of the tank (1). The bottom of the temperature sensor (18) and the discharge pipe (19) both extend to the outside of the shell (3). A support frame (2) is welded to the bottom of the outer surface of the shell (3). A main control box (11) is installed on the front side of the right side of the top of the support frame (2) by bolts. A circulation pump (7) is set on the right side of the shell (3). A lower three-way valve (8) is installed at the inlet end of the circulation pump (7). An upper three-way valve (6) is installed at the outlet pipe of the circulation pump (7).

2. The water-based epoxy coating mixing device with filtration function according to claim 1, characterized in that: The feeding mechanism (4) includes a feeding hopper (17), the bottom of the feeding hopper (17) is penetrated by a partition plate (31), a filter cylinder (16) is inserted into the inner cavity of the feeding hopper (17), and a top cover (15) is threaded on the top of the feeding hopper (17), and a material injection pipe (14) is connected to the top of the top cover (15).

3. The water-based epoxy coating mixing device with filtration function according to claim 1, characterized in that: The top of the stirring rod (32) extends through to the outside of the tank (1) and is fixedly connected to the output shaft of the drive motor (5) via a coupling. The top of the gear (26) extends to the inner cavity at the bottom of the partition (31) and meshes with the gear ring (30). The bottoms of the first cleaning pipe (23) and the second cleaning pipe (24) are both connected to a spray pipe (25).

4. The water-based epoxy coating mixing device with filtration function according to claim 1, characterized in that: Scrapers (29) are installed on the outer sides of both sides of the stirring rod (32). A filter screen shell (21) is installed through the left side of the filter cake box (13) by bolt sealing. A conveying pipe (12) is welded to the bottom of the filter cake box (13).

5. The water-based epoxy coating mixing device with filtration function according to claim 1, characterized in that: A circulating material pipe (10) is installed between the feed end at the bottom of the lower three-way valve (8) and the discharge pipe (19). A cleaning liquid pipe (9) is connected to the feed end on the right side of the lower three-way valve (8). The liquid outlet pipes at the top and left side of the upper three-way valve (6) pass through the tank body (1) and are respectively connected to the second cleaning pipe (24) and the partition (31).

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