Environment-friendly water-based paint and preparation method thereof

Abstract

The invention relates to the technical field of water-based paint processing, and discloses an environment-friendly water-based paint and a preparation method thereof.The environment-friendly water-based paint is prepared from, by weight, 30-50 parts of waterborne polyurethane, 10-20 parts of deionized water, 2-5 parts of dipropylene glycol monomethyl ether, 1-2 parts of activated carbon, 1-3 parts of talcum powder, 3-5 parts of dispersing agent, 1-5 parts of thickening agent, 3-5 parts of defoaming agent and 5-10 parts of pigment filler. A conveying belt with a material turning assembly is arranged, the material turning assembly comprises a fixing frame, a movable second material turning seat and a movable third material turning seat are arranged in the fixing frame, a second material turning plate and a third material turning plate are arranged on the lower side of the second material turning seat and the lower side of the third material turning seat, movable teeth are arranged on the lower side of the second material turning plate, and scraping teeth are arranged on the lower side of the third material turning plate. When the second material turning seat and the third material turning seat move, grooves can be scraped on the powder through the second material turning plate and the third material turning plate, so that the contact area between the powder and hot air is increased, and the drying effect is improved.

Description

Technical Field

[0001] This invention relates to the field of water-based coating processing technology, specifically to an environmentally friendly water-based coating and its preparation method. Background Technology

[0002] All coatings that use water as a solvent or dispersion medium can be called water-based coatings. Water-based coatings include three types: water-soluble coatings, water-dilutable coatings, and water-dispersible coatings. Water-soluble coatings use water-soluble resins as film-forming agents, with polyvinyl alcohol and its various modified forms being representative examples. Other examples include water-soluble alkyd resins, water-soluble epoxy resins, and inorganic polymer water-based resins.

[0003] Water-based coatings use water as a diluent and contain no organic solvents. Compared with traditional coatings, they have no irritating odor, are harmless to the human body, do not pollute the environment, and have the characteristics of water resistance, wear resistance, and aging resistance. Water-based coatings require the use of powders such as lubricants, dispersants, and preservatives during processing. If these powders contain a large amount of water, it will cause inaccurate proportions and thus affect product quality. Therefore, the first step in processing is to dry the raw materials. Conventional raw material drying is usually done by belt dryers. During the entire processing, the raw materials are statically placed on the conveyor belt. The raw materials at the bottom are more difficult to dry, requiring longer drying time to achieve the ideal drying effect, resulting in low efficiency. Summary of the Invention

[0004] This invention provides an environmentally friendly water-based coating and its preparation method, which has the beneficial effect of high drying efficiency. It solves the problem mentioned in the background art that the raw materials are statically placed on the conveyor belt during the entire processing, and the raw materials at the bottom are difficult to dry, requiring an extended drying time to achieve the ideal drying effect, resulting in low efficiency.

[0005] The present invention provides the following technical solution: an environmentally friendly water-based coating, comprising the following components in parts by weight: 30-50 parts water-based polyurethane, 10-20 parts deionized water, 2-5 parts dipropylene glycol methyl ether, 1-2 parts activated carbon, 1-3 parts talc, 3-5 parts dispersant, 1-5 parts thickener, 3-5 parts defoamer, and 5-10 parts pigments and fillers.

[0006] As an optional embodiment of the preparation method of the environmentally friendly water-based coating described in this invention, the method includes the following steps:

[0007] S1. Raw material drying: The powder raw material is sent into the drying device for drying to remove the moisture in the powder raw material, and then the material is weighed according to the weight proportions for later use.

[0008] S2. First low-speed mixing: First, add 1-3 parts of waterborne polyurethane, deionized water, dipropylene glycol methyl ether, and defoamer to the disperser, and stir for 10 minutes at 400-600 rpm.

[0009] S3. High-speed mixing: Add the remaining defoamer, talc, activated carbon, and dispersant to the disperser and stir for 10 minutes at 800-1000 rpm. Then add the pigments and fillers to the disperser and stir for 10 minutes at 1000-1500 rpm.

[0010] S4. Second low-speed mixing: Add the thickener to the disperser and stir for 5 minutes at 600-800 rpm. The finished product can be obtained after stirring.

[0011] As an optional solution of the preparation method of the environmentally friendly water-based coating of the present invention, wherein: the drying device in step S1 includes a frame, and the frame is provided with a conveyor belt, the conveyor belt is provided with a plurality of storage tanks, and the storage tanks are provided with a turning component;

[0012] The material-turning assembly includes a fixed frame, and a crossbeam is provided in the middle of the fixed frame. A sliding seat is provided inside the crossbeam. The sliding seat is slidably connected to the crossbeam, and the sliding seat is elastically connected to the fixed frame through a first return spring. A fixed rod is provided on the sliding seat, and the fixed rod is elastically connected to the sliding seat through a first spring. A first material-turning seat is symmetrically provided on the fixed rod, and a first material-turning plate is provided on the lower side of the first material-turning seat. A second material-turning seat is provided on one side of the crossbeam, and a third material-turning seat is provided on the other side of the crossbeam. The second material-turning seat and the third material-turning seat are fixedly connected by a connecting rod, and the second material-turning seat is elastically connected to the fixed frame through a fixed spring. The connecting rod is slidably connected to the crossbeam. A wavy protrusion is provided on one side of the fixed frame.

[0013] As an optional solution of the preparation method of the environmentally friendly water-based coating of the present invention, wherein: a second flipping plate is provided on the lower side of the second flipping seat, and the second flipping plate is elastically connected to the second flipping seat through a second return spring; a third flipping plate is provided on the lower side of the third flipping seat, and the third flipping plate is elastically connected to the third flipping seat through a third return spring; and an extension rod is provided at one end of the third flipping seat.

[0014] As an optional embodiment of the preparation method of the environmentally friendly water-based coating of the present invention, wherein: the crossbeam is provided with a limiting plate for limiting the sliding seat, the limiting plate is U-shaped, and the limiting plate is elastically connected to the crossbeam by a second spring; a push rod is provided on one side of the third flipping seat, and the position of the push rod is opposite to the limiting plate.

[0015] As an optional solution of the preparation method of the environmentally friendly water-based coating of the present invention, the second flipping plate is provided with a plurality of movable teeth on its lower side, and the movable teeth are rotatably connected to the second flipping plate through a rotating shaft. The second flipping plate is provided with a pressure plate for limiting the movable teeth, and the pressure plate is elastically connected to the second flipping plate through a limiting spring.

[0016] As an optional embodiment of the preparation method of the environmentally friendly water-based coating of the present invention, wherein: an adjustment block for adjusting the height of the pressure plate is provided on one side of the crossbeam, one end of the adjustment block is fixedly connected to the crossbeam, and one side of the adjustment block is provided with an inclined surface.

[0017] As an optional embodiment of the preparation method of the environmentally friendly water-based coating of the present invention, wherein: one end of the second flipping plate and the third flipping plate are provided with an extension protrusion, one end of the fixing frame is provided with an adjustment plate, the adjustment plate is elastically connected to the fixing frame through a third spring, and the fixing frame is located on one side of the extension protrusion.

[0018] As an optional embodiment of the preparation method of the environmentally friendly water-based coating of the present invention, wherein: a first magnetic suction block is provided on one side of the second material turning seat, a second magnetic suction block is provided on the fixed frame at a position corresponding to the first magnetic suction block, a dial plate is provided on one side of the second magnetic suction block, and the dial plate is rotatably connected to the fixed frame.

[0019] As an optional embodiment of the preparation method of the environmentally friendly water-based coating of the present invention, the inner side of the frame is provided with a first baffle and a second baffle, the position of the first baffle is opposite to the lever, the position of the second baffle is opposite to the extension rod, and the second baffle is elastically connected to the frame by a torsion spring.

[0020] The present invention has the following beneficial effects:

[0021] 1. The preparation method of the environmentally friendly water-based coating involves setting up a conveyor belt with a material-turning component. The material-turning component includes a fixed frame, and a movable second material-turning seat and a third material-turning seat are provided in the fixed frame. The second material-turning seat and the third material-turning seat are fixedly connected by a connecting rod and move synchronously.

[0022] In the initial state, the second material turning seat is adsorbed to the fixed frame by a magnet. As the conveyor belt moves, the material turning assembly moves to the first baffle. The first baffle is located on the upper side of the frame. During the movement, the first baffle抵触the deflector plate, and the deflector plate deflects. Under the push of the deflector plate, the second material turning seat separates from the fixed frame. Subsequently, under the push of the fixed spring, the second material turning seat pops out. At this time, the second material turning seat and the third material turning seat move. There are second material turning plates and third material turning plates on the lower sides of the second material turning seat and the third material turning seat respectively. There are movable teeth on the lower side of the second material turning plate, and scraping teeth are provided on the lower side of the third material turning plate. Both can scrape grooves on the powder to increase the contact area between the powder and hot air and improve the drying effect.

[0023] 2. For the preparation method of this environmentally friendly water-based coating, by setting a crossbeam with a sliding seat, the sliding seat is in a "convex" shape. The sliding seat is elastically connected to the fixed frame through a first return spring. Under normal circumstances, the first return spring is in a state of storing energy. Correspondingly, a limiting plate for limiting the sliding seat is provided on the crossbeam, and the sliding seat can be clamped by the limiting plate.

[0024] A push rod is provided on one side of the third material turning seat. As the third material turning seat moves, the push rod passes through the crossbeam and抵触s one end of the limiting plate. Under the push of the push rod, the limiting plate overcomes the resistance of the second spring and moves in a direction away from the sliding seat. After losing the restriction of the limiting plate, the sliding seat moves under the action of the first return spring. Under the drive of the sliding seat, the first material turning plate with scraping teeth can scrape grooves on the powder, further increasing the contact area between the powder and hot air and effectively improving the drying efficiency.

[0025] 3. For the preparation method of this environmentally friendly water-based coating, by setting second material turning plates and third material turning plates with extending protrusions, correspondingly, a movable adjusting plate is provided on the fixed frame. When the sliding seat moves under the drive of the first return spring, it will抵触the adjusting plate. Under the push of the adjusting plate, the positions of the second material turning plate and the third material turning plate change. An extension rod is provided at one end of the third material turning plate. Correspondingly, a second baffle is provided on the side of the frame. As the conveyor belt moves, the extension rod抵触s the second baffle. Under the push of the second baffle, the extension rod, the second material turning seat, and the third material turning seat move. Since the positions of the second material turning plate and the third material turning plate change, therefore, as the second material turning seat and the third material turning seat move, new grooves can be scraped on the powder through the second material turning plate and the third material turning plate, greatly increasing the contact area between the powder and hot air. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the internal structure of the frame of the present invention.

[0027] Figure 2 It is a schematic diagram of the positional structure of the material turning assembly and the frame of the present invention.

[0028] Figure 3 This is a schematic diagram of the material turning component structure of the present invention.

[0029] Figure 4 This is a schematic diagram showing the position and structure of the crossbeam and the fixed frame of the present invention.

[0030] Figure 5 This is a schematic diagram of the internal structure of the crossbeam of the present invention.

[0031] Figure 6 This is a schematic diagram of the internal structure of the sliding seat of the present invention.

[0032] Figure 7 This is a schematic diagram of the internal structure of the second material turning seat of the present invention.

[0033] Figure 8 This is a schematic diagram of the internal structure of the third material turning seat of the present invention.

[0034] In the diagram: 1. Frame; 101. First baffle; 102. Second baffle; 2. Conveyor belt; 3. Storage trough; 4. Fixed frame; 401. Wavy protrusion; 5. Crossbeam; 6. Sliding seat; 7. First return spring; 8. Fixed rod; 9. First spring; 10. First tilting seat; 11. First tilting plate; 12. Second tilting seat; 1201. Second tilting plate; 1202. Second return spring; 13. Third tilting seat; 1301. Three-fold material plate; 1302, third return spring; 1303, extension rod; 1304, push rod; 14, connecting rod; 15, limiting plate; 16, second spring; 17, movable tooth; 18, rotating shaft; 19, pressure plate; 20, limiting spring; 21, adjusting block; 22, extension protrusion; 23, adjusting plate; 24, third spring; 25, first magnetic suction block; 26, second magnetic suction block; 27, lever plate; 28, torsion spring; 29, fixed spring. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example 1

[0037] Please see Figures 1 to 8This invention discloses an environmentally friendly water-based coating, comprising the following components in parts by weight: 30-50 parts water-based polyurethane, 10-20 parts deionized water, 2-5 parts dipropylene glycol methyl ether, 1-2 parts activated carbon, 1-3 parts talc, 3-5 parts dispersant, 1-5 parts thickener, 3-5 parts defoamer, and 5-10 parts pigments and fillers.

[0038] A method for preparing an environmentally friendly water-based coating includes the following steps:

[0039] S1. Raw material drying: The powder raw material is sent into the drying device for drying to remove the moisture in the powder raw material, and then the material is weighed according to the weight proportions for later use.

[0040] S2. First low-speed mixing: First, add 1-3 parts of waterborne polyurethane, deionized water, dipropylene glycol methyl ether, and defoamer to the disperser, and stir for 10 minutes at 400-600 rpm.

[0041] S3. High-speed mixing: Add the remaining defoamer, talc, activated carbon, and dispersant to the disperser and stir for 10 minutes at 800-1000 rpm. Then add the pigments and fillers to the disperser and stir for 10 minutes at 1000-1500 rpm.

[0042] S4. Second low-speed mixing: Add the thickener to the disperser and stir for 5 minutes at 600-800 rpm. The finished product can be obtained after stirring.

[0043] This technology improves the processing technology of water-based coatings by using a dedicated drying device. During drying, hot air is introduced to heat and dry the powder. The powder is turned over by a turning component on the conveyor belt, which increases the contact area between the powder and the hot air, greatly improving drying efficiency and shortening drying time.

[0044] Example 2

[0045] This embodiment is an improvement upon embodiment 1. For details, please refer to [link / reference]. Figures 1 to 8 The drying device in step S1 includes a frame 1, and a conveyor belt 2 is provided inside the frame 1. Several storage tanks 3 are provided on the conveyor belt 2, and a turning component is provided inside the storage tanks 3.

[0046] The material turning component includes a fixed frame 4, and a cross beam 5 is provided in the middle of the fixed frame 4. A sliding seat 6 is provided in the cross beam 5. The sliding seat 6 is slidably connected to the cross beam 5, and the sliding seat 6 is elastically connected to the fixed frame 4 through a first return spring 7. A fixed rod 8 is provided on the sliding seat 6, and the fixed rod 8 is elastically connected to the sliding seat 6 through a first spring 9. First material turning seats 10 are symmetrically provided on the fixed rod 8, and a first material turning plate 11 is provided on the lower side of the first material turning seat 10. A second material turning seat 12 is provided on one side of the cross beam 5, and a third material turning seat 13 is provided on the other side of the cross beam 5. The second material turning seat 12 and the third material turning seat 13 are fixedly connected through a connecting rod 14, and the second material turning seat 12 is elastically connected to the fixed frame 4 through a fixed spring 29. The connecting rod 14 is slidably connected to the cross beam 5. A wavy protrusion 401 is provided on one side of the fixed frame 4.

[0047] A second material turning plate 1201 is provided on the lower side of the second material turning seat 12, and the second material turning plate 1201 is elastically connected to the second material turning seat 12 through a second return spring 1202. A third material turning plate 1301 is provided on the lower side of the third material turning seat 13, and the third material turning plate 1301 is elastically connected to the third material turning seat 13 through a third return spring 1302. An extension rod 1303 is provided at one end of the third material turning seat 13.

[0048] A limiting plate 15 for limiting the sliding seat 6 is provided on the cross beam 5. The limiting plate 15 is U-shaped, and the limiting plate 15 is elastically connected to the cross beam 5 through a second spring 16. A push rod 1304 is provided on one side of the third material turning seat 13, and the position of the push rod 1304 is opposite to that of the limiting plate 15.

[0049] A first baffle 101 and a second baffle 102 are provided inside the frame 1. The position of the first baffle 101 is opposite to that of the dial 27, and the position of the second baffle 102 is opposite to that of the extension rod 1303. The second baffle 102 is elastically connected to the frame 1 through a torsion spring 28.

[0050] The material turning component includes a fixed frame 4. A cross beam 5 is provided in the middle of the fixed frame 4. A movable sliding seat 6 is provided in the cross beam 5. The sliding seat 6 is in a "convex" shape. The sliding seat 6 is elastically connected to the fixed frame 4 through a first return spring 7. Under normal circumstances, the first return spring 7 is in a state of storing energy. Correspondingly, a limiting plate 15 for limiting the sliding seat 6 is provided on the cross beam 5. The sliding seat 6 can be clamped by the limiting plate 15. A movable second material turning seat 12 and a third material turning seat 13 are also provided in the fixed frame 4. The second material turning seat 12 and the third material turning seat 13 are fixedly connected through a connecting rod 14, and the two move synchronously;

[0051] Initially, the second tilting seat 12 is magnetically attached to the fixed frame 4. As the conveyor belt 2 moves, the tilting assembly moves to the first baffle 101, which is located on the upper side of the frame 1. During the movement, the first baffle 101 abuts against the deflector 27. Under the push of the first baffle 101, the deflector 27 deflects, and one end of the deflector 27 abuts against the second tilting seat 12. Under the push of the deflector 27, the second tilting seat 12 and the fixed frame 4... After separation, the second tilting seat 12 pops out under the push of the fixed spring 29. At this time, the second tilting seat 12 and the third tilting seat 13 move. The second tilting plate 1201 and the third tilting plate 1301 are provided on the lower side of the second tilting seat 12 and the third tilting plate 1301. The lower side of the second tilting plate 1201 has movable teeth 17, and the lower side of the third tilting plate 1301 has scraping teeth. Both can scrape grooves on the powder to increase the contact area between the powder and the hot air and improve the drying effect.

[0052] A push rod 1304 is provided on one side of the third tilting seat 13. As the third tilting seat 13 moves, the push rod 1304 passes through the crossbeam 5 and abuts against one end of the limiting plate 15. Under the push of the push rod 1304, the limiting plate 15 overcomes the resistance of the second spring 16 and moves away from the sliding seat 6. After the limitation of the limiting plate 15 is removed, the sliding seat 6 moves under the action of the first return spring 7. Driven by the sliding seat 6, the first tilting plate 11 with scraping teeth can scrape grooves on the powder, further increasing the contact area between the powder and the hot air, and effectively improving the drying efficiency.

[0053] To improve the drying effect, this technical solution includes a movable fixing rod inside the sliding seat. The fixing rod is used to fix the first turning seat 10. The fixing rod is elastically connected to the sliding seat through a first spring. Correspondingly, a wave-shaped protrusion 401 is provided on the inner side of the fixing frame. One end of the first turning seat 10 is connected to the wave-shaped protrusion 401. When the first turning seat 10 moves under the drive of the sliding seat, it will move towards the fixing rod due to the influence of the wave-shaped protrusion 401. The fixing rod will overcome the resistance of the first spring and reciprocate under the drive of the first turning seat 10. In this way, the first turning seat 10 with the first turning plate 11 can slide out a wave-shaped groove on the powder, further increasing the contact area between the powder and the hot air.

[0054] Example 3

[0055] This embodiment is an improvement upon embodiment 1. For details, please refer to [link / reference]. Figures 1 to 8 The lower side of the second flip plate 1201 is provided with a number of movable teeth 17, and the movable teeth 17 are rotatably connected to the second flip plate 1201 through a rotating shaft 18. The second flip plate 1201 is provided with a pressure plate 19 for limiting the movable teeth 17, and the pressure plate 19 is elastically connected to the second flip plate 1201 through a limiting spring 20.

[0056] One side of the crossbeam 5 is provided with an adjustment block 21 for adjusting the height of the pressure plate 19. One end of the adjustment block 21 is fixedly connected to the crossbeam 5, and one side of the adjustment block 21 is provided with an inclined surface.

[0057] The second flipping plate 1201 and the third flipping plate 1301 are each provided with an extension protrusion 22 at one end, and the fixed frame 4 is provided with an adjustment plate 23 at one end. The adjustment plate 23 is elastically connected to the fixed frame 4 through a third spring 24, and the fixed frame 4 is located on one side of the extension protrusion 22.

[0058] The second material turning seat 12 is provided with a first magnetic suction block 25 on one side, and a second magnetic suction block 26 is provided on the fixed frame 4, which is positioned corresponding to the first magnetic suction block 25. A lever 27 is provided on one side of the second magnetic suction block 26, and the lever 27 is rotatably connected to the fixed frame.

[0059] When the second flip plate 1201 pops out, the third flip plate 1301 does not contact the first flip seat 10. However, the presence of the second flip plate 1201 will interfere with the movement of the first flip seat 10. Therefore, this technical solution provides a deflectable movable tooth 17 at the second flip plate 1201. When the first flip seat 10 moves, it will push the movable tooth 17 to deflect, so that the presence of the movable tooth 17 will not affect the movement of the first flip seat 10.

[0060] Since the movable tooth 17 is movable, in order to improve its stability during operation, this technical solution also provides a pressure plate 19 for limiting its movement inside the second tilting plate 1201. The pressure plate 19 is elastically connected to the second tilting plate 1201 through a limiting spring 20. Under normal circumstances, the limiting spring 20 will apply a pushing force to the pressure plate 19 facing the movable tooth 17. Under the pressure of the pressure plate 19, the movable tooth 17 is not easy to move. When the second tilting plate 1201 moves towards the crossbeam 5, one end of the pressure plate 19 will abut against the adjusting block 21 on the rear crossbeam 5. The pressure plate 19 is slidably connected to the second tilting plate 1201. Since the adjusting block 21 is in the shape of a right triangle, under the push of the adjusting block 21, the pressure plate 19 moves away from the movable tooth 17, and at this time the movable tooth 17 can move freely.

[0061] An extension protrusion 22 is provided at one end of the second tilting plate 1201 and the third tilting plate 1301. Correspondingly, a movable adjusting plate 23 is provided on the fixed frame 4. When the sliding seat 6 moves under the drive of the first return spring 7, it will abut against the adjusting plate 23. Under the push of the adjusting plate 23, the positions of the second tilting plate 1201 and the third tilting plate 1301 change. An extension rod 1303 is provided at one end of the third tilting seat 13. Correspondingly, a second baffle 102 is provided on the side of the frame 1. As the conveyor belt 2 moves, the extension rod 1303 abuts against the second baffle 102. Driven by the baffle 102, the extension rod 1303, the second tilting seat 12, and the third tilting seat 13 move. As the positions of the second tilting plate 1201 and the third tilting plate 1301 change, new grooves can be scraped out on the powder by the second tilting plate 1201 and the third tilting plate 1301, which greatly increases the contact area between the powder and the hot air. When the movement reaches a certain position, the extension rod 1303 can no longer slide relative to the fixed frame 4, and the second baffle 102 deflects and then returns to its original position under the action of the torsion spring 28.

[0062] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0063] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An environmentally friendly water-based coating, characterized in that, The product comprises the following components in parts by weight: 30-50 parts waterborne polyurethane, 10-20 parts deionized water, 2-5 parts dipropylene glycol methyl ether, 1-2 parts activated carbon, 1-3 parts talc, 3-5 parts dispersant, 1-5 parts thickener, 3-5 parts defoamer, and 5-10 parts pigments and fillers.

2. The method for preparing an environmentally friendly water-based coating according to claim 1, characterized in that: Includes the following steps: S1. Raw material drying: The powder raw material is sent into the drying device for drying to remove the moisture in the powder raw material, and then the material is weighed according to the weight proportions for later use. S2. First low-speed mixing: First, add 1-3 parts of waterborne polyurethane, deionized water, dipropylene glycol methyl ether, and defoamer to the disperser, and stir for 10 minutes at 400-600 rpm. S3. High-speed mixing: Add the remaining defoamer, talc, activated carbon, and dispersant to the disperser and stir for 10 minutes at 800-1000 rpm. Then add the pigments and fillers to the disperser and stir for 10 minutes at 1000-1500 rpm. S4. Second low-speed mixing: Add the thickener to the disperser and stir for 5 minutes at 600-800 rpm. The finished product can be obtained after stirring.

3. The method for preparing an environmentally friendly water-based coating according to claim 2, characterized in that: The drying device in step S1 includes a frame (1), and a conveyor belt (2) is provided inside the frame (1). A plurality of storage tanks (3) are provided on the conveyor belt (2), and a turning component is provided inside the storage tanks (3). The material turning assembly includes a fixed frame (4), and a crossbeam (5) is provided in the middle of the fixed frame (4). A sliding seat (6) is provided inside the crossbeam (5). The sliding seat (6) is slidably connected to the crossbeam (5), and the sliding seat (6) is elastically connected to the fixed frame (4) through a first return spring (7). A fixed rod (8) is provided on the sliding seat (6), and the fixed rod (8) is elastically connected to the sliding seat (6) through a first spring (9). A first material turning seat (10) is symmetrically provided on the fixed rod (8), and the first turning seat (10) is... The lower side of the material seat (10) is provided with a first flipping plate (11), one side of the crossbeam (5) is provided with a second flipping seat (12), and the other side of the crossbeam (5) is provided with a third flipping seat (13). The second flipping seat (12) and the third flipping seat (13) are fixedly connected by a connecting rod (14), and the second flipping seat (12) is elastically connected to the fixed frame (4) by a fixed spring (29). The connecting rod (14) is slidably connected to the crossbeam (5), and one side of the fixed frame (4) is provided with a wave-shaped protrusion (401).

4. The method for preparing an environmentally friendly water-based coating according to claim 3, characterized in that: The second flipping seat (12) has a second flipping plate (1201) on its lower side, and the second flipping plate (1201) is elastically connected to the second flipping seat (12) through a second return spring (1202). The third flipping seat (13) has a third flipping plate (1301) on its lower side, and the third flipping plate (1301) is elastically connected to the third flipping seat (13) through a third return spring (1302). One end of the third flipping seat (13) is provided with an extension rod (1303).

5. The method for preparing an environmentally friendly water-based coating according to claim 4, characterized in that: The crossbeam (5) is provided with a limiting plate (15) for limiting the sliding seat (6). The limiting plate (15) is U-shaped and is elastically connected to the crossbeam (5) by a second spring (16). The third turning seat (13) is provided with a push rod (1304) on one side, and the position of the push rod (1304) is opposite to the limiting plate (15).

6. The method for preparing an environmentally friendly water-based coating according to claim 5, characterized in that: The second flipping plate (1201) has several movable teeth (17) on its lower side, and the movable teeth (17) are rotatably connected to the second flipping plate (1201) through a rotating shaft (18). The second flipping plate (1201) has a pressure plate (19) for limiting the movable teeth (17), and the pressure plate (19) is elastically connected to the second flipping plate (1201) through a limiting spring (20).

7. The method for preparing an environmentally friendly water-based coating according to claim 6, characterized in that: One side of the crossbeam (5) is provided with an adjustment block (21) for adjusting the height of the pressure plate (19). One end of the adjustment block (21) is fixedly connected to the crossbeam (5), and one side of the adjustment block (21) is provided with an inclined surface.

8. The method for preparing an environmentally friendly water-based coating according to claim 7, characterized in that: The second flip plate (1201) and the third flip plate (1301) are each provided with an extension protrusion (22) at one end. The fixed frame (4) is provided with an adjustment plate (23) at one end. The adjustment plate (23) is elastically connected to the fixed frame (4) through a third spring (24), and the fixed frame (4) is located on one side of the extension protrusion (22).

9. The method for preparing an environmentally friendly water-based coating according to claim 8, characterized in that: The second flipping seat (12) has a first magnetic suction block (25) on one side, and the fixed frame (4) has a second magnetic suction block (26) with a position corresponding to the first magnetic suction block (25). The second magnetic suction block (26) has a dial plate (27) on one side, and the dial plate (27) is rotatably connected to the fixed frame.

10. The method for preparing an environmentally friendly water-based coating according to claim 9, characterized in that: The inner side of the frame (1) is provided with a first baffle (101) and a second baffle (102). The position of the first baffle (101) is opposite to the lever (27), and the position of the second baffle (102) is opposite to the extension rod (1303). The second baffle (102) is elastically connected to the frame (1) through a torsion spring (28).

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