Sand textured multicolor paint and preparation device and preparation method thereof

Abstract

The invention discloses a sand-textured multicolor coating as well as a preparation device and a preparation method thereof, and relates to the technical field of coatings. The preparation method of the sand-textured multicolor paint comprises the following steps: respectively weighing the raw materials of the multicolor paint according to the composition ratio of the raw materials of the sand-textured multicolor paint; pouring the first deionized water into a first container, sequentially adding the defoaming agent, the dispersing agent and the preservative, and uniformly stirring and dispersing; sequentially adding the colored sand, the titanium dioxide, the mica sheet, the barium sulfate and the zinc oxide into the first container, and uniformly stirring and mixing; according to the invention, the raw material composition of the sand-textured colorful paint is optimized and adjusted, and a novel slow-release thickening agent is designed, so that the problems of stability and uniformity of the paint are solved; meanwhile, the invention designs a preparation device of the slow-release thickening agent, the preparation of the slow-release thickening agent can be realized only by adopting the preparation device, the preparation process of the slow-release thickening agent is simplified, the complexity of the process is reduced, and the preparation device has practicability.

Description

Technical Field

[0001] The invention relates to the technical field of coatings, and in particular to a sand-wall-shaped multi-colored coating and a preparation device and a preparation method thereof. Background Art

[0002] Sand wall-like colorful paint is a kind of paint with decorative effect similar to marble and granite, mainly applied on the exterior walls of buildings. Sand wall-like colorful paint has natural and real natural color, giving people a sense of elegance, harmony and solemnity, and is suitable for the exterior wall decoration of various buildings.

[0003] The components of sand-walled colorful paint include: color base paint and continuous phase emulsion. In the preparation process of sand-walled colorful paint, the prepared color base paint and continuous phase emulsion are mainly mixed and stirred in proportion to ensure that all components are evenly dispersed. Granular substances such as mica flakes and colored sand added to sand-walled colorful paint will form a stone-like effect on the surface of the paint.

[0004] As for the common sand-walled colorful paint, the inventor believes that since the sand-walled colorful paint contains a large amount of granular materials such as colored sand and mica flakes, these particles are easy to settle or stratify in the paint system, resulting in poor paint stability, and the particles are easy to precipitate or stratify, affecting the product performance of the sand-walled colorful paint. Therefore, how to solve the above technical problems is a technical problem currently faced by general technicians in this field.

[0005] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0006] In view of the above technical problems, the embodiments of the present invention provide a sand-wall-shaped multi-color coating and a preparation device and method thereof to solve the problems raised in the above background technology.

[0007] A method for preparing a sand-wall-shaped multi-color coating comprises the following steps:

[0008] According to the composition ratio of the raw materials of the sand-wall-shaped multi-color paint, weigh the raw materials of the multi-color paint respectively;

[0009] Pour the first deionized water into the first container, and add the defoamer, dispersant and preservative in sequence, and stir to disperse evenly;

[0010] Add colored sand, titanium dioxide, mica flakes, barium sulfate and zinc oxide to the first container in sequence, and stir to mix evenly;

[0011] Continue adding the emulsion to the first container and stirring until a homogeneous liquid mixture is formed;

[0012] Adding a film-forming aid, a thickener, a slow-release thickener and a gel into the liquid mixture, stirring and mixing evenly to obtain the sand-wall-shaped colorful paint;

[0013] Wherein, the preparation method of the slow-release thickener comprises the following steps:

[0014] According to the composition ratio of each raw material of the slow-release thickener, weigh each raw material of the slow-release thickener respectively;

[0015] Pour the sodium alginate into a second container, and heat the sodium alginate in the second container until the surface is in an adhered state;

[0016] Adding silicon dioxide into the second container and mixing and stirring to adhere silicon dioxide particles to the surface of the sodium alginate;

[0017] The sodium alginate with the silicon dioxide particles attached thereto is naturally cooled to room temperature and then dried;

[0018] Spraying alkaline second deionized water in a second container to make the silicon dioxide on the surface of the sodium alginate adhere to the surface;

[0019] Adding the cationic polymer to the second container and mixing and stirring to encapsulate the cationic polymer on the surface of the silicon dioxide, and obtaining a primary sustained-release thickener with a complete microcapsule shell structure after encapsulation;

[0020] The primary slow-release thickener is dried to obtain a slow-release thickener with a complete particle structure.

[0021] Preferably, the raw materials of the sand-wall-like colorful paint include, by weight: 30-40 parts of first deionized water, 0.15-0.3 parts of preservatives, 0.3-1 parts of defoaming agents, 0.4-1 parts of dispersants, 20-40 parts of colored sand, 6-10 parts of titanium dioxide, 3.5-7 parts of mica flakes, 5.5-8 parts of barium sulfate, 1.5-6 parts of film-forming aids, 12-30 parts of emulsions, 1-2 parts of thickeners, 1-5 parts of zinc oxide, 1-5 parts of gels, and 1-2 parts of slow-release thickeners.

[0022] Preferably, the raw materials of the sustained-release thickener include, by weight, 2-5 parts of second deionized water, 1 part of sodium alginate, 5-8 parts of silicon dioxide and 1-3 parts of cationic polymer.

[0023] Preferably, the dispersant is polyvinyl alcohol or sodium polyacrylate; the film-forming aid is 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate; and the thickener is a polyurethane thickener.

[0024] Preferably, in the step of heating the sodium alginate in the second container until the surface is in an adhered state, the heating temperature is 50-80°C.

[0025] A preparation device for the slow-release thickener as described above, comprising: a base, a material storage barrel, a rotating mechanism, a material redirecting mechanism, a first filter plate, a second filter plate and a liquid spray pipe;

[0026] The material storage barrel is located above the base, and a discharge pipe is fixedly arranged at the bottom of the material storage barrel; the discharge pipe is rotatably connected to the base; there is a gap between the bottom surface of the material storage barrel and the top surface of the base;

[0027] The outer wall of the storage barrel is provided with an outer shell layer, and the outer shell layer and the outer wall of the storage barrel are enclosed to form a first space; a heating wire is provided in the first space, and the heating wire is fixed to the inner wall of the outer shell layer;

[0028] The rotating mechanism includes a turbine, a worm, a fixed block and a first motor;

[0029] The turbine is arranged in the gap between the bottom surface of the storage barrel and the top surface of the base, and the turbine is coaxially fixed with the discharge pipe; the bottom surface of the storage barrel is fixed on the top surface of the turbine;

[0030] The fixing blocks include two, and the two fixing blocks are fixed on the base at intervals; the fixing blocks are provided with shaft holes; and the two ends of the worm are rotatably connected in the shaft holes of the two fixing blocks;

[0031] The first motor is fixed on the base, the main shaft of the first motor is fixedly connected to one end of the worm; the worm is meshingly connected to the turbine;

[0032] The first filter plate is circular and fixed in the material storage barrel, and a second space exists between the bottom surface of the first filter plate and the inner bottom surface of the material storage barrel;

[0033] The top pipe opening of the discharge pipe extends to the outside of the top surface of the first filter plate, and an inverted frustum-shaped discharge trough is arranged around the discharge pipe on the top of the first filter plate;

[0034] The material redirection mechanism is arranged at the inner top of the storage barrel, and the material redirection mechanism comprises an annular oblique plate, a cylindrical tube and an annular horizontal plate;

[0035] The annular oblique plate is arranged around the inner wall of the storage barrel, and the outer side of the annular oblique plate is fixed on the inner wall of the storage barrel;

[0036] The annular horizontal plate is coaxially fixed to the inner top wall of the storage barrel and is located above the annular oblique plate;

[0037] The cylindrical tube is coaxially located inside the storage barrel, and the outer wall of the cylindrical tube is sealed and fixedly connected to the inner side of the annular oblique plate and the inner side of the annular horizontal plate; the inner tube cavity of the cylindrical tube is the material discharge port;

[0038] The annular oblique plate, the annular horizontal plate, the cylindrical tube and the inner wall of the storage barrel together form a third space;

[0039] A plurality of liquid spray pipes are arranged at annular intervals on the annular inclined plate, and a liquid inlet pipe is connected to the annular horizontal plate;

[0040] A control valve is provided on the discharge pipe, and a second filter plate is detachably connected to the lower pipe opening of the discharge pipe;

[0041] Among them, a plurality of drainage holes a are arranged on the discharge pipe at the position section located in the second space.

[0042] Preferably, the second filter plate is circular, and a handle bar is fixed at the center of the bottom surface of the second filter plate;

[0043] An internal thread is arranged at the lower pipe opening of the discharge pipe, and an external thread is arranged circumferentially on the second filter plate; the second filter plate is threadedly connected to the lower pipe opening of the discharge pipe.

[0044] Preferably, it also includes an agitator; the agitator includes a stirring rod arranged in the storage barrel, a circular stirring plate fixed at the lower end of the stirring rod, and a second motor located above the storage barrel and drivingly connected to the stirring rod; the stirring rod passes through the inner tube cavity of the cylindrical tube.

[0045] Preferably, it also includes a stand, an upper fixing plate, a lower fixing plate, a guide column, a screw rod, a moving seat and a third motor;

[0046] The upper fixing plate and the lower fixing plate are fixed on the stand at intervals in the upper and lower parts;

[0047] The guide column is fixed on the upper fixing plate and the lower fixing plate; the screw rod is parallel to the guide column and is rotatably connected to the upper fixing plate and the lower fixing plate;

[0048] The moving seat is slidably connected to the guide column, and the moving seat is threadedly connected to the screw; the second motor of the stirrer is fixed on the moving seat;

[0049] The third motor is fixed on the stand, and the main shaft of the third motor is connected to the screw drive.

[0050] Preferably, a fixing plate is fixedly provided on the top of the storage barrel, a limiting hole is provided at the end of the fixing plate, and the stirring rod passes through the limiting hole.

[0051] A sand-wall-like multi-color coating and a preparation device and method thereof provided in an embodiment of the present invention have the following beneficial effects: the present invention optimizes and adjusts the raw material composition of the sand-wall-like multi-color coating, and designs a new slow-release thickener, thereby solving the stability and uniformity problems of the coating; at the same time, the present invention designs a preparation device for the slow-release thickener, and the preparation of the slow-release thickener can be achieved by only using this preparation device, thereby simplifying the preparation process of the slow-release thickener, reducing the complexity of the process, and having practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 This is a structural schematic diagram of the first aspect of the present invention;

[0053] Figure 2 This is a structural schematic diagram of the second angle of the present invention;

[0054] Figure 3 For the present invention Figure 1 Cross-section view in the AA direction;

[0055] Figure 4 It is a cross-sectional view of a part of the structure of the present invention. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0057] In view of the above technical problems, the embodiments of the present invention provide a sand-wall-shaped multi-color coating and a preparation device and method thereof to solve the problems raised in the above background technology.

[0058] 1. The design ideas of the present invention are as follows:

[0059] The present invention optimizes the composition and production process of the sand-walled multi-color coating, effectively solving the problem of coating stratification and uneven dispersion during use. The specific design ideas of the present invention are as follows:

[0060] 1. Optimize and adjust the composition of each raw material in the coating to solve the stability and uniformity problems of the coating. For example, adding defoamers, dispersants and preservatives can effectively reduce bubbles and precipitation, ensure the stability of the coating, and improve its anti-corrosion performance; adding pigments and fillers such as titanium dioxide, mica flakes, and barium sulfate can help improve the hiding power, glossiness and texture effect of the coating.

[0061] 2. In the process of preparing the paint, emulsion and thickener are added in combination. By gradually adding emulsion and thickener, the paint can form a stable colloidal structure while ensuring fluidity, increase the viscosity of the paint and improve the rheology, which can effectively reduce the problem of particle sedimentation or stratification.

[0062] 3. Slow-release thickeners are added to the paint raw materials. Traditional thickeners often immediately affect the viscosity of the paint, while slow-release thickeners use "microcapsule technology" to gradually release the thickening effect during the use of the paint, avoiding the problem of viscosity fluctuations in the paint during construction.

[0063] 4. A slow-release thickener suitable for sand-walled colorful coatings is designed. The main component of the slow-release thickener is sodium alginate, which is a natural polymer compound with good thickening properties. The present invention uses silicon dioxide particles as the basic material of the slow-release capsule shell, heats the sodium alginate to combine it with silicon dioxide, and coats the surface of the sodium alginate with a layer of silicon dioxide slow-release capsule shell structure;

[0064] Meanwhile, in the process of coating the silicon dioxide on the surface of the sodium alginate, it is considered that when the sodium alginate is heated to make its surface in an adhered state, the silicon dioxide is adsorbed by the viscosity of the sodium alginate surface, and there may be an incomplete structure of the silicon dioxide sustained-release capsule shell; in this regard, the present invention further encapsulates a layer of cationic polymer on the surface of the silicon dioxide to form a sustained-release thickener with a complete sustained-release capsule shell structure;

[0065] Cationic polymer is also a material for sustained-release capsule shell. The structure of sustained-release capsule shell prepared by cationic polymer has a three-dimensional network structure with several gaps, and this structure also has a sustained-release effect. When the cationic polymer is embedded in silica, alkaline deionized water is sprayed on the surface of silica in advance to make the silica in an adherent state, which is convenient for adsorption with the cationic polymer. At the same time, silica is negatively charged in the alkaline solution, and the cationic polymer can be firmly adsorbed and aggregated on the surface of silica through electrostatic adsorption, thereby improving the integrity of the sustained-release capsule shell structure.

[0066] 5. A preparation device for a slow-release thickener is designed with emphasis. The slow-release thickener can be prepared by only using this preparation device, which simplifies the preparation process of the slow-release thickener, reduces the complexity of the process, and is practical.

[0067] 2. A method for preparing a sand-walled multi-colored coating

[0068] The preparation method of the sand-wall-shaped multi-color coating comprises the following steps:

[0069] According to the composition ratio of the raw materials of the sand-wall-shaped multi-color paint, weigh the raw materials of the multi-color paint respectively;

[0070] Pour the first deionized water into the first container, and add the defoamer, dispersant and preservative in sequence, and stir to disperse evenly;

[0071] Add colored sand, titanium dioxide, mica flakes, barium sulfate and zinc oxide to the first container in sequence, and stir to mix evenly;

[0072] Continue adding the emulsion to the first container and stirring until a homogeneous liquid mixture is formed;

[0073] Adding a film-forming aid, a thickener, a slow-release thickener and a gel into the liquid mixture, stirring and mixing evenly to obtain the sand-wall-shaped colorful paint;

[0074] Wherein, the preparation method of the slow-release thickener comprises the following steps:

[0075] According to the composition ratio of each raw material of the slow-release thickener, weigh each raw material of the slow-release thickener respectively;

[0076] Pour the sodium alginate into a second container, and heat the sodium alginate in the second container until the surface is in an adhered state;

[0077] Adding silicon dioxide into the second container and mixing and stirring to adhere silicon dioxide particles to the surface of the sodium alginate;

[0078] The sodium alginate with the silicon dioxide particles attached thereto is naturally cooled to room temperature and then dried;

[0079] Spraying alkaline second deionized water in a second container to make the silicon dioxide on the surface of the sodium alginate adhere to the surface;

[0080] Adding the cationic polymer to the second container and mixing and stirring to encapsulate the cationic polymer on the surface of the silicon dioxide, and obtaining a primary sustained-release thickener with a complete microcapsule shell structure after encapsulation;

[0081] The primary slow-release thickener is dried to obtain a slow-release thickener with a complete particle structure.

[0082] Preferably, the raw materials of the sand-wall-like colorful paint include, by weight: 30-40 parts of first deionized water, 0.15-0.3 parts of preservatives, 0.3-1 parts of defoaming agents, 0.4-1 parts of dispersants, 20-40 parts of colored sand, 6-10 parts of titanium dioxide, 3.5-7 parts of mica flakes, 5.5-8 parts of barium sulfate, 1.5-6 parts of film-forming aids, 12-30 parts of emulsions, 1-2 parts of thickeners, 1-5 parts of zinc oxide, 1-5 parts of gels, and 1-2 parts of slow-release thickeners.

[0083] Preferably, the raw materials of the slow-release thickener include, by weight, 2-5 parts of second deionized water, 1 part of sodium alginate, 5-8 parts of silicon dioxide and 1-3 parts of cationic polymer. The cationic polymer is specifically a polyquaternary ammonium salt polymer or a polyamine.

[0084] Preferably, the dispersant is polyvinyl alcohol or sodium polyacrylate; the film-forming aid is 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate; and the thickener is a polyurethane thickener.

[0085] Preferably, in the step of heating the sodium alginate in the second container until the surface is in an adhered state, the heating temperature is 50-80°C.

[0086] 3. Experimental effect test

[0087] 1. Experimental groups:

[0088] Experimental group 1: 30 parts of first deionized water, 0.15 parts of preservatives, 0.3 parts of defoaming agents, 0.4 parts of dispersants, 40 parts of colored sand, 10 parts of titanium dioxide, 7 parts of mica flakes, 5.5 parts of barium sulfate, 1.5 parts of film-forming aids, 12 parts of emulsions, 1 part of thickeners, 1 part of zinc oxide, 5 parts of gels, and 1 part of sustained-release thickeners.

[0089] Experimental group 2: 35 parts of first deionized water, 0.3 parts of preservative, 0.8 parts of defoaming agent, 1 part of dispersant, 40 parts of colored sand, 8 parts of titanium dioxide, 5 parts of mica flakes, 6 parts of barium sulfate, 3 parts of film-forming aid, 25 parts of emulsion, 1 part of thickener, 5 parts of zinc oxide, 3 parts of gel and 1.5 parts of slow-release thickener.

[0090] Control group: 35 parts of first deionized water, 0.3 parts of preservative, 0.8 parts of defoaming agent, 1 part of dispersant, 40 parts of colored sand, 8 parts of titanium dioxide, 5 parts of mica flakes, 6 parts of barium sulfate, 3 parts of film-forming aid, 25 parts of emulsion, 2.5 parts of thickener, 5 parts of zinc oxide, and 3 parts of gel.

[0091] 2. Experimental testing process:

[0092] After the three groups of coatings were prepared according to the preparation method of the sand-walled multi-color coating of the present invention, they were placed at room temperature for observation. The observation time is preferably at least 3 weeks to 6 months, because the particulate matter (such as colored sand, mica flakes, etc.) in the sand-walled multi-color coating may not show obvious stratification in the short term, but long-term use (such as sedimentation, stratification) will be more obvious.

[0093] 3. Experimental results evaluation:

[0094] Delamination detection: Use a transparent container to observe the sedimentation of the paint. If the paint has obvious delamination or sedimentation, it means there is a problem of uneven distribution. Compare experimental group 1, experimental group 2 and the control group to observe the degree and duration of delamination.

[0095] 4. Expected results of the experiment:

[0096] Control group: After the experimental observation period, a small amount of particles settled and there was a slight stratification phenomenon. Experimental groups 1 and 2 did not have particle sedimentation and stratification. The experimental results show that the slow-release thickener can effectively improve the stability of sand-walled colorful coatings and reduce the problems of stratification and particle sedimentation.

[0097] 4. A device for preparing a slow-release thickener

[0098] A preparation device for a slow-release thickener, comprising: a base 110, a material storage barrel 120, a rotating mechanism, a material redirecting mechanism, a first filter plate 130, a second filter plate 160 and a liquid spray pipe 149;

[0099] The material storage barrel 120 is located above the base 110, and a discharge pipe 123 is fixedly provided at the bottom of the material storage barrel 120; the discharge pipe 123 is rotatably connected to the base 110; there is a gap between the bottom surface of the material storage barrel 120 and the top surface of the base 110;

[0100] The outer wall of the material storage barrel 120 is provided with an outer shell layer 121, and the outer shell layer 121 and the outer wall of the material storage barrel 120 enclose a first space 122; a heating wire is provided in the first space 122, and the heating wire is fixed to the inner wall of the outer shell layer 121;

[0101] The rotating mechanism includes a turbine 171, a worm 172, a fixing block 173 and a first motor 174;

[0102] The turbine 171 is disposed in the gap between the bottom surface of the storage barrel 120 and the top surface of the base 110, and the turbine 171 is coaxially fixed with the discharge pipe 123; the bottom surface of the storage barrel 120 is fixed on the top surface of the turbine 171;

[0103] The fixing blocks 173 include two fixing blocks 173 which are fixed on the base 110 at intervals; the fixing blocks 173 are provided with shaft holes; the two ends of the worm 172 are rotatably connected in the shaft holes of the two fixing blocks 173;

[0104] The first motor 174 is fixed on the base 110 , and the main shaft of the first motor 174 is fixedly connected to one end of the worm 172 ; the worm 172 is meshedly connected to the turbine 171 ;

[0105] The first filter plate 130 is circular and fixed in the material storage barrel 120 , and a second space 131 exists between the bottom surface of the first filter plate 130 and the inner bottom surface of the material storage barrel 120 ;

[0106] The top pipe opening of the discharge pipe 123 extends to the outside of the top surface of the first filter plate 130, and an inverted frustum-shaped discharge trough 130a is arranged around the discharge pipe 123 on the top of the first filter plate 130;

[0107] The material redirection mechanism is arranged at the inner top of the storage barrel 120, and the material redirection mechanism includes an annular oblique plate 145, a cylindrical tube 142 and an annular horizontal plate 143;

[0108] The annular oblique plate 145 is disposed around the inner wall of the material storage barrel 120, and the outer side of the annular oblique plate 145 is fixed to the inner wall of the material storage barrel 120;

[0109] The annular horizontal plate 143 is coaxially fixed to the inner top wall of the storage barrel 120 and is located above the annular oblique plate 145;

[0110] The cylindrical tube 142 is coaxially located inside the storage barrel 120, and the outer wall of the cylindrical tube 142 is sealed and fixedly connected to the inner side of the annular oblique plate 145 and the inner side of the annular horizontal plate 143; the inner tube cavity of the cylindrical tube 142 is a material discharge port;

[0111] The annular oblique plate 145, the annular horizontal plate 143, the cylindrical tube 142 and the inner wall of the storage barrel 120 together form a third space 146;

[0112] A plurality of liquid spray pipes 149 are provided at annular intervals on the annular oblique plate 145, and a liquid inlet pipe 147 is connected to the annular horizontal plate 143; the liquid inlet pipe 147 is connected to a container filled with second deionized water;

[0113] A control valve is provided on the discharge pipe 123, and a second filter plate 160 is detachably connected to the lower pipe opening of the discharge pipe 123;

[0114] The discharge pipe 123 is provided with a plurality of drainage holes 123 a at a position section located in the second space 131 .

[0115] In this embodiment, the second filter plate 160 is circular, and a handle bar 161 is fixed at the center of the bottom surface of the second filter plate 160; the handle bar 161 facilitates the user to control the second filter plate 160 for disassembly and installation operations;

[0116] An internal thread is provided at the lower pipe opening of the discharge pipe 123 , and an external thread is provided circumferentially of the second filter plate 160 ; the second filter plate 160 is threadedly connected to the lower pipe opening of the discharge pipe 123 .

[0117] In this embodiment, an agitator is also included; the agitator includes a stirring rod 152 arranged in the storage barrel 120, a circular stirring plate 151 fixed to the lower end of the stirring rod 152, and a second motor 153 located above the storage barrel 120 and drivingly connected to the stirring rod 152; the stirring rod 152 is arranged to pass through the inner tube cavity of the cylindrical tube 142.

[0118] In this embodiment, it also includes a stand 181, an upper fixing plate 182, a lower fixing plate 183, a guide column 184, a screw 185, a moving seat 186 and a third motor 187;

[0119] The upper fixing plate 182 and the lower fixing plate 183 are fixed on the stand 181 at intervals in the upper and lower parts;

[0120] The guide column 184 is fixed on the upper fixing plate 182 and the lower fixing plate 183; the screw 185 is parallel to the guide column 184 and is rotatably connected to the upper fixing plate 182 and the lower fixing plate 183;

[0121] The movable seat 186 is slidably connected to the guide column 184, and the movable seat 186 is threadedly connected to the screw 185; the second motor 153 of the stirrer is fixed on the movable seat 186;

[0122] The third motor 187 is fixed on the stand 181, and the main shaft of the third motor 187 is drivingly connected to the screw 185. The above structure is used to adjust the position height of the stirrer.

[0123] In this embodiment, a fixing plate 160 is fixedly disposed on the top of the material storage barrel 120, and a limiting hole 161 is disposed at the end of the fixing plate 160, and the stirring rod 152 passes through the limiting hole 161. The limiting hole 161 is used to limit the working position of the stirring rod 152.

[0124] 5. Working method of the slow-release thickener preparation device

[0125] A method for preparing a slow-release thickener using a device for preparing a slow-release thickener is as follows:

[0126] 1. According to the composition ratio of each raw material of the slow-release thickener, weigh each raw material of the slow-release thickener respectively;

[0127] 2. Pour the sodium alginate particles from the inner tube cavity of the cylindrical tube 142 into the storage barrel 120. Since the storage barrel 120 is provided with a first filter plate 130, the sodium alginate will fall on the first filter plate 130. The size of the filter holes on the first filter plate 130 is only used to filter deionized water and cannot pass the sodium alginate particles.

[0128] 3. The heating wire in the storage barrel 120 works to heat the sodium alginate particles until the surface is in an adhered state;

[0129] 4. Continue to add silicon dioxide into the storage barrel 120; the second motor 153 works to control the agitator to mix and stir; at the same time, the first motor 174 works to drive the worm 172 to rotate, and then drives the turbine 171 and the storage barrel 120 to rotate;

[0130] During the rotation operation of the storage barrel 120, the movement direction of the sodium alginate and silicon dioxide mixture in the storage barrel 120 is as follows:

[0131] A. The mixed material will rotate with the rotation of the storage barrel 120 and be thrown to the vicinity of the inner wall of the storage barrel 120;

[0132] B. After the mixed material hits the wall, the direction of movement immediately changes and moves upward under the rotating centrifugal force and the stirring thrust of the agitator;

[0133] C. After the upwardly tumbling material collides with the annular oblique plate 145 in the material redirecting mechanism, the movement direction changes again, and the material tumbles downward toward the middle of the storage barrel 120, and finally falls back to the bottom of the storage barrel 120, completing a cycle; then the material enters the next movement cycle again;

[0134] D. The entire movement process of the material is a continuous tumbling, tangential, and rotating flow state, which makes the material mixing fully uniform. This flow state will adhere the silica particles to the surface of the sodium alginate;

[0135] 5. Then the preparation device is shut down, and the sodium alginate with silicon dioxide particles attached is naturally cooled to room temperature and dried. During the shutdown of the device, natural wind can be blown into the storage barrel 120 to accelerate the drying process.

[0136] 6. The second deionized water is injected into the third space 146 in the material redirecting mechanism by means of the liquid inlet pipe 147, and the first motor 174 works again to drive the storage barrel 120 to rotate; during the rotation of the storage barrel 120, the second deionized water is sprinkled out from the liquid nozzle 149 and sprayed on the silicon dioxide on the surface of the sodium alginate to make it adhere to the silicon dioxide;

[0137] Because the first filter plate 130 is present in the storage barrel 120, the second deionized water will not be retained in the storage barrel 120, and the second deionized water sprayed in excess will pass through the mesh on the first filter plate 130 and enter the second space 131; the second deionized water in the second space 131 will enter the discharge pipe 123 through the drainage hole 123a on the discharge pipe 123, and the control valve on the discharge pipe 123 will be opened to discharge the second deionized water, and the mixed material will not be discharged from the discharge pipe 123 due to the presence of the second filter plate 160;

[0138] The design purpose of the above structure is that the amount of the second deionized water added is only enough to wet the surface of the silicon dioxide and make it adhere to the surface, so as to avoid excessive addition of the second deionized water;

[0139] 7. Continue to add the cationic polymer into the storage barrel 120, and the second motor 153 is operated to control the stirrer to mix and stir; at the same time, during the rotation of the storage barrel 120, the cationic polymer is also caused to be coated on the surface of the silicon dioxide according to the movement path of the above step 3; after the encapsulation is completed, a primary slow-release thickener with a complete microcapsule shell structure is obtained;

[0140] 8. The preparation device is then shut down again to dry the primary slow-release thickener to obtain a slow-release thickener with a complete particle structure; natural wind can be blown into the storage barrel 120 during the shutdown process to accelerate the drying process;

[0141] 9. After the preparation of the slow-release thickener is completed, the second filter plate 160 in the discharge pipe 123 is removed, and the control valve on the discharge pipe 123 is opened; because an inverted frustum-shaped discharge trough 130a is provided around the discharge pipe 123 at the top of the first filter plate 130, the slow-release thickener is discharged from the bottom of the discharge trough 130a through the discharge pipe 123 under the action of gravity.

[0142] The embodiments described above are only descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A method for preparing a sand-walled multi-color coating, characterized in that: The following steps are involved: According to the composition ratio of the raw materials of the sand-wall-shaped multi-color paint, weigh the raw materials of the multi-color paint respectively; Pour the first deionized water into the first container, and add the defoamer, dispersant and preservative in sequence, and stir to disperse evenly; Add colored sand, titanium dioxide, mica flakes, barium sulfate and zinc oxide to the first container in sequence, and stir to mix evenly; Continue adding the emulsion to the first container and stirring until a homogeneous liquid mixture is formed; Adding a film-forming aid, a thickener, a slow-release thickener and a gel into the liquid mixture, stirring and mixing evenly to obtain the sand-wall-shaped colorful paint; Wherein, the preparation method of the slow-release thickener comprises the following steps: According to the composition ratio of each raw material of the slow-release thickener, weigh each raw material of the slow-release thickener respectively; Pour the sodium alginate into a second container, and heat the sodium alginate in the second container until the surface is in an adhered state; Adding silicon dioxide to the second container and stirring the mixture to adhere silicon dioxide particles to the surface of the sodium alginate; The sodium alginate with the silicon dioxide particles attached thereto is naturally cooled to room temperature and then dried; Spraying alkaline second deionized water in a second container to make the silicon dioxide on the surface of the sodium alginate adhere to the surface; Adding the cationic polymer to the second container and mixing and stirring to encapsulate the cationic polymer on the surface of the silicon dioxide, and obtaining a primary sustained-release thickener with a complete microcapsule shell structure after encapsulation; The primary slow-release thickener is dried to obtain a slow-release thickener with a complete particle structure.

2. The method for preparing the sand-walled multi-color coating according to claim 1, characterized in that: The raw materials of the sand-wall-like colorful paint include, by weight: 30-40 parts of first deionized water, 0.15-0.3 parts of preservatives, 0.3-1 parts of defoaming agents, 0.4-1 parts of dispersants, 20-40 parts of colored sand, 6-10 parts of titanium dioxide, 3.5-7 parts of mica flakes, 5.5-8 parts of barium sulfate, 1.5-6 parts of film-forming aids, 12-30 parts of emulsions, 1-2 parts of thickeners, 1-5 parts of zinc oxide, 1-5 parts of gels, and 1-2 parts of slow-release thickeners.

3. The method for preparing the sand-walled multi-color coating according to claim 1, characterized in that: The raw materials of the slow-release thickener include, by weight, 2-5 parts of second deionized water, 1 part of sodium alginate, 5-8 parts of silicon dioxide and 1-3 parts of cationic polymer.

4. The method for preparing the sand-walled multi-color coating according to claim 1, characterized in that: The dispersant is polyvinyl alcohol or sodium polyacrylate; the film-forming aid is 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate; and the thickener is a polyurethane thickener.

5. The method for preparing the sand-walled multi-color coating according to claim 1, characterized in that: In the step of heating the sodium alginate in the second container until the surface is in an adhered state, the heating temperature is 50-80°C.

6. A device for preparing the slow-release thickener according to claim 1, characterized in that: include: A base, a material storage barrel, a rotating mechanism, a material changing mechanism, a first filter plate, a second filter plate and a liquid spray pipe; The material storage barrel is located above the base, and a discharge pipe is fixedly arranged at the bottom of the material storage barrel; the discharge pipe is rotatably connected to the base; there is a gap between the bottom surface of the material storage barrel and the top surface of the base; The outer wall of the storage barrel is provided with an outer shell layer, and the outer shell layer and the outer wall of the storage barrel are enclosed to form a first space; a heating wire is provided in the first space, and the heating wire is fixed to the inner wall of the outer shell layer; The rotating mechanism includes a turbine, a worm, a fixed block and a first motor; The turbine is arranged in the gap between the bottom surface of the storage barrel and the top surface of the base, and the turbine is coaxially fixed with the discharge pipe; the bottom surface of the storage barrel is fixed on the top surface of the turbine; The fixing blocks include two, and the two fixing blocks are fixed on the base at intervals; the fixing blocks are provided with shaft holes; and the two ends of the worm are rotatably connected in the shaft holes of the two fixing blocks; The first motor is fixed on the base, the main shaft of the first motor is fixedly connected to one end of the worm; the worm is meshingly connected to the turbine; The first filter plate is circular and fixed in the material storage barrel, and a second space exists between the bottom surface of the first filter plate and the inner bottom surface of the material storage barrel; The top pipe opening of the discharge pipe extends to the outside of the top surface of the first filter plate, and an inverted frustum-shaped discharge trough is arranged around the discharge pipe on the top of the first filter plate; The material redirection mechanism is arranged at the inner top of the storage barrel, and the material redirection mechanism comprises an annular oblique plate, a cylindrical tube and an annular horizontal plate; The annular oblique plate is arranged around the inner wall of the storage barrel, and the outer side of the annular oblique plate is fixed on the inner wall of the storage barrel; The annular horizontal plate is coaxially fixed to the inner top wall of the storage barrel and is located above the annular oblique plate; The cylindrical tube is coaxially located inside the storage barrel, and the outer wall of the cylindrical tube is sealed and fixedly connected to the inner side of the annular oblique plate and the inner side of the annular horizontal plate; the inner tube cavity of the cylindrical tube is the material discharge port; The annular oblique plate, the annular horizontal plate, the cylindrical tube and the inner wall of the storage barrel together form a third space; A plurality of liquid spray pipes are arranged at annular intervals on the annular inclined plate, and a liquid inlet pipe is connected to the annular horizontal plate; A control valve is provided on the discharge pipe, and a second filter plate is detachably connected to the lower pipe opening of the discharge pipe; Wherein, a plurality of drainage holes are arranged on the discharge pipe at the position section located in the second space.

7. The device for preparing a slow-release thickener according to claim 6, characterized in that: The second filter plate is circular, and a handle bar is fixed at the center of the bottom surface of the second filter plate; An internal thread is arranged at the lower pipe opening of the discharge pipe, and an external thread is arranged circumferentially on the second filter plate; the second filter plate is threadedly connected to the lower pipe opening of the discharge pipe.

8. The device for preparing a slow-release thickener according to claim 6, characterized in that: It also includes a stirrer; the stirrer includes a stirring rod arranged in the storage barrel, a circular stirring plate fixed at the lower end of the stirring rod, and a second motor located above the storage barrel and drivingly connected to the stirring rod; the stirring rod passes through the inner tube cavity of the cylindrical tube.

9. The device for preparing a slow-release thickener according to claim 8, characterized in that: It also includes a stand, an upper fixing plate, a lower fixing plate, a guide column, a screw rod, a moving seat and a third motor; The upper fixing plate and the lower fixing plate are fixed on the stand at intervals in the upper and lower parts; The guide column is fixed on the upper fixing plate and the lower fixing plate; the screw rod is parallel to the guide column and is rotatably connected to the upper fixing plate and the lower fixing plate; The moving seat is slidably connected to the guide column, and the moving seat is threadedly connected to the screw; the second motor of the stirrer is fixed on the moving seat; The third motor is fixed on the stand, and the main shaft of the third motor is connected to the screw drive.

10. The device for preparing a slow-release thickener according to claim 8, characterized in that: A fixing plate is fixedly arranged on the top of the material storage barrel, a limiting hole is arranged at the end of the fixing plate, and the stirring rod passes through the limiting hole.

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