CN118681452A - Device and method for preparing highly dispersible pearlescent pigment - Google Patents

Abstract

The present invention discloses a device and method for preparing highly dispersible pearlescent pigments, and relates to the technical field of preparing pearlescent pigments, including a bracket, a tank body is fixedly connected to the bracket, a push plate is slidably arranged inside the tank body, the push plate divides the inside of the tank body into an upper bin and a lower bin, the upper bin is located above the lower bin, an air chamber is provided inside the side wall of the tank body, a bottom chamber is provided at the bottom of the tank body, the bottom chamber is connected to the air chamber, the bottom chamber is connected to the lower bin through a first through groove, a first one-way valve is fixedly installed inside the first through groove, a heating device is fixedly installed inside the bottom chamber, a second through groove is penetrated and opened on the push plate, and a second one-way valve is fixedly installed inside the second through groove. The device for preparing highly dispersible pearlescent pigments is provided with structures such as a push plate, a lower bin, an upper bin, and a lifting mechanism, and can simultaneously realize the functions of stirring and drying, thereby improving the efficiency of preparing pearlescent pigments.

Description

Device and method for preparing highly dispersible pearlescent pigment

Technical Field

The invention relates to the technical field of pearlescent pigment preparation, and in particular to a device and method for preparing highly dispersible pearlescent pigment.

Background Art

Pearlescent pigments include a flaky substrate and a metal oxide coated on the flaky substrate. The type of coated metal oxide can be selected according to the desired pearlescent pigment. For example, if a metal oxide with a high refractive index (such as titanium dioxide and zirconium oxide) is coated, a pearlescent color can be obtained through the interference effect of light refraction. If color pigments, dyes or colored metal oxides (such as iron oxide and chromium oxide) are added to the above-mentioned metal oxides, colorful pearlescent colors can be obtained through the refraction of the pearlescent pigment.

In the preparation process of highly dispersed pearlescent pigments, it is necessary to go through the steps of stirring, filtration, drying, etc. However, the stirring device used in the existing preparation process has a relatively single function, and the processing efficiency needs to be improved.

Therefore, it is necessary to propose a highly dispersed pearlescent pigment preparation device and method to solve the above problems.

Summary of the invention

The purpose of the present invention is to provide a highly dispersible pearlescent pigment preparation device and method to solve the problem that the steps of stirring, filtration, drying, etc. are required in the preparation process of highly dispersible pearlescent pigment. However, the stirring device used in the existing preparation process has a relatively single function and the processing efficiency needs to be improved.

To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a highly dispersible pearlescent pigment preparation device and method, comprising a bracket, a tank body is fixedly connected to the bracket, a push plate is slidably arranged inside the tank body, the push plate divides the inside of the tank body into an upper warehouse and a lower warehouse, the upper warehouse is located above the lower warehouse, an air chamber is opened inside the side wall of the tank body, a bottom chamber is opened at the bottom of the tank body, the bottom chamber is communicated with the air chamber, the bottom chamber is communicated with the lower warehouse through a first through groove, a first one-way valve is fixedly installed inside the first through groove, a heating device is fixedly installed inside the bottom chamber, a second through groove is penetrated and opened on the push plate, a second one-way valve is fixedly installed inside the second through groove, an air hole is opened on the top of the inner wall of the tank body, the upper warehouse is communicated with the air chamber through the air hole, a vertical cylinder is rotatably connected to the push plate, the vertical cylinder is communicated with the lower warehouse, a stirring box is fixedly connected to the vertical cylinder, a lifting mechanism cooperating with the push plate is arranged at the bottom of the tank body, and a driving mechanism for driving the vertical cylinder to rotate is arranged between the vertical cylinder and the tank body.

Preferably, the second through groove is provided in plurality.

Preferably, the lifting mechanism includes an electric push rod, which is provided with two electric push rods, which are evenly distributed about the axis of the tank body, and the electric push rod is fixedly connected to the lower surface of the tank body. A circular hole is opened at the bottom of the tank body for the telescopic end of the electric push rod to pass through, and the telescopic end of the electric push rod is fixedly connected to the push plate.

Preferably, the driving mechanism includes a rotating shaft, a slide groove, a limit plate and a motor, the rotating shaft is rotatably connected to the bottom of the tank body, the slide groove is opened on the inner wall of the vertical cylinder, the limit plate is slidably connected to the inside of the slide groove, the limit plate is fixedly connected to the rotating shaft, the motor is fixedly connected to the lower surface of the bottom of the tank body, and the rotating shaft is fixedly connected to the driving shaft of the motor.

Preferably, the interior of the stirring box is slidably connected to a slide plate, and the slide plate divides the interior of the stirring box into a first air cavity and a second air cavity, the first air cavity is located at one end of the stirring box close to the vertical cylinder, and the end of the stirring box away from the vertical cylinder is slidably connected to a stirring plate, and the stirring plate is fixedly connected to the slide plate.

Preferably, a first air groove is provided inside the stirring plate, the first air groove is located at one end of the stirring plate close to the slide board, the first air groove is connected to the second air cavity, second air grooves are provided at both the upper and lower ends of the stirring plate, the second air grooves are connected to the first air grooves, the second air grooves are located at one end of the stirring plate away from the slide board, the second air grooves are distributed in an inclined shape, and a stirring rod is slid inside the second air groove.

Preferably, a baffle ring is fixedly connected to the bottom of the air chamber, an activated carbon ring is fixedly connected between the top of the baffle ring and the inner wall of the air chamber, the outer diameters of the baffle ring and the activated carbon ring gradually decrease from bottom to top, and a water outlet pipe is fixedly connected to the bottom of the outer wall of the tank body, the water outlet pipe is connected to the air chamber, and a solenoid valve is fixedly installed on the water outlet pipe.

Preferably, the top of the tank body is sealed with a cover plate, the bottom of the side wall of the tank body is provided with a discharge port, and the inner wall of the discharge port is sealed with a sealing plate.

The present invention also discloses a method for preparing a highly dispersible pearlescent pigment, comprising the above-mentioned highly dispersible pearlescent pigment preparation device, and further comprising the following steps:

S1. Pour pearlescent pigment powder and water into a tank, mix and stir evenly, and perform inorganic coating treatment;

S2, filtering, washing, and drying to obtain a pigment substrate;

S3, preparing the obtained pigment substrate into an aqueous suspension, and adding the modified solution;

S4, stirring, draining and drying the filter cake.

Preferably, the modification solution comprises a silane surface modifier and a coupling agent.

Technical effects and advantages of the present invention:

1. The present invention can realize the functions of stirring and drying at the same time by arranging structures such as a push plate, a lower bin, an upper bin and a lifting mechanism, thereby improving the efficiency of preparing pearlescent pigments;

2. The gas is blown upward from the second slot to the upper bin, which causes the materials accumulated on the push plate to flip upward and cooperate with the stirring box to fully mix and stir the materials, thereby improving the uniformity of mixing and stirring;

3. The combined effect of wind force and high temperature heat on the material, with the cooperation of the stirring box, stirring plate, stirring rod and other structures, improves the drying efficiency of the material;

4. The push plate moves up and down inside the tank and cooperates with the vertical cylinder, stirring box and other structures to make the stirring plate reciprocate and extend to improve the uniformity of stirring;

5. By setting the first air groove, the second air groove and other structures and cooperating with the slide plate, the stirring rod can be reciprocated and extended, further improving the uniformity of stirring;

6. When the push plate moves upward inside the tank, the high-temperature water vapor in the upper half of the tank will be pressed into the air chamber through the air hole, and the high-temperature water vapor will flow from top to bottom inside the air chamber, achieving the effect of heat preservation of the tank and improving the utilization efficiency of heat energy;

7. The telescopic end of the electric push rod extends out, so that the push plate moves upward inside the tank. The push plate can push and scrape the materials attached to the inner wall of the tank upward and to the upper half of the tank, which is convenient for the operator to clean;

8. The gas after filtering out moisture enters the bottom chamber, and the gas has a certain amount of heat, which can be quickly heated to the specified temperature by the heating device, achieving the effect of reducing energy consumption;

9. After the preparation operation is completed, the activated carbon ring will be in a moist state due to the effect of filtering out moisture. The residual heat of the heating device can be transferred to the activated carbon ring to quickly dry it for subsequent use;

10. After the preparation operation is completed, the push plate moves upward inside the tank, the slide plate slides toward the vertical cylinder, and the stirring plate and stirring rod slide back to reduce the area of the stirring structure, which is convenient for operators to clean.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the structure of a device for preparing highly dispersible pearlescent pigments according to the present invention.

FIG. 2 is a schematic cross-sectional view of the structure of the device for preparing highly dispersible pearlescent pigments of the present invention.

FIG. 3 is an enlarged schematic diagram of the structure at point A in FIG. 2 of the present invention.

FIG. 4 is a schematic diagram of an enlarged structure of the structure at B in FIG. 2 of the present invention.

FIG. 5 is a schematic diagram of an enlarged structure of the structure at point C in FIG. 2 of the present invention.

FIG. 6 is an enlarged schematic diagram of the structure at point D in FIG. 2 of the present invention.

FIG. 7 is a schematic diagram of the structure of the stirring box, the first air cavity and the second air cavity of the present invention.

FIG8 is an enlarged schematic diagram of the structure at point E in FIG7 of the present invention.

In the figure: 1. bracket; 2. tank body; 3. push plate; 4. lower warehouse; 5. upper warehouse; 6. air chamber; 7. bottom chamber; 8. first through groove; 9. first one-way valve; 10. heating device; 11. second through groove; 12. second one-way valve; 13. air hole; 14. retaining ring; 15. activated carbon ring; 16. water outlet pipe; 17. solenoid valve; 18. electric push rod; 19. vertical cylinder; 20. stirring box; 21. first air cavity; 22. second air cavity; 23. stirring plate; 24. first air groove; 25. slide plate; 26. second air groove; 27. stirring rod; 28. rotating shaft; 29. slide groove; 30. limit plate; 31. motor; 32. cover plate; 33. discharge port; 34. sealing plate.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clarify the technical solutions in the embodiments of the present invention; it is clearly described in detail that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

The present invention provides a highly dispersible pearlescent pigment preparation device as shown in FIGS. 1 to 8 , comprising a bracket 1, to which a tank body 2 is fixedly connected. The top of the tank body 2 is sealed with a cover plate 32, a discharge port 33 is provided at the bottom of the side wall of the tank body 2, and a sealing plate 34 is sealed on the inner wall of the discharge port 33. When in use, the cover plate 32 is opened, pearlescent pigment powder and water are poured into the tank body 2, and then the cover plate 32 is closed; after the preparation is completed, the sealing plate 34 is opened, and the material is discharged from the discharge port 33.

A push plate 3 is provided inside the tank body 2 for sliding. The push plate 3 may be made of, but not limited to, heat-conducting materials such as silicon carbide. A rubber ring may be provided on the outer ring of the push plate 3 to improve the sealing of the push plate 3 when sliding up and down, and to reduce the wear between the push plate 3 and the tank body 2. The push plate 3 divides the inside of the tank body 2 into an upper bin 5 and a lower bin 4, and the upper bin 5 is located above the lower bin 4. When the push plate 3 slides upward inside the tank body 2, it can squeeze the upper bin 5, increase its internal pressure, and then discharge the gas. At the same time, a negative pressure state is formed inside the lower bin 4, which has a certain suction force.

The bottom of the tank body 2 is provided with a lifting mechanism that cooperates with the push plate 3, and the lifting mechanism includes an electric push rod 18, and two electric push rods 18 are provided, and the two electric push rods 18 are evenly distributed about the axis of the tank body 2. The electric push rod 18 is fixedly connected to the lower surface of the tank body 2, and a circular hole is opened at the bottom of the tank body 2 for the telescopic end of the electric push rod 18 to pass through, and the telescopic end of the electric push rod 18 is fixedly connected to the push plate 3. It should be noted that other structures with lifting effects can also be used to drive the push plate 3 to move up and down.

Specifically, when the telescopic end of the electric push rod 18 is extended, the push plate 3 moves upward inside the tank body 2 ; when the telescopic end of the electric push rod 18 is retracted, the push plate 3 moves downward inside the tank body 2 .

An air chamber 6 is provided inside the side wall of the tank body 2, and the air chamber 6 is in a ring-shaped structure. An air hole 13 is provided on the top of the inner wall of the tank body 2, and a plurality of air holes 13 are provided. The upper chamber 5 is connected to the air chamber 6 through the air hole 13. A bottom chamber 7 is provided at the bottom of the tank body 2, and the bottom chamber 7 is connected to the air chamber 6. The bottom chamber 7 is connected to the lower chamber 4 through a first through groove 8, and a first one-way valve 9 is fixedly installed inside the first through groove 8. The first one-way valve 9 is provided so that the gas inside the bottom chamber 7 can enter the lower chamber 4 through the first through groove 8 without reverse flow. A second through groove 11 is provided through the push plate 3, and a plurality of second through grooves 11 are provided. A second one-way valve 12 is fixedly installed inside the second through groove 11, and the second one-way valve 12 is provided so that the gas inside the lower chamber 4 can enter the upper chamber 5 through the second through groove 11 without reverse flow.

A heating device 10 is fixedly installed inside the bottom chamber 7. The heating device 10 can be set in multiples. The heating device 10 includes a heating block and other structures. The heating device 10 can quickly heat up the gas passing through the bottom chamber 7. When used specifically, a heating device 10 can also be set inside the gas chamber 6 to improve the heating efficiency. When preparation at a certain temperature is required, the heating device 10 can perform a heating operation.

The push plate 3 is rotatably connected with a vertical cylinder 19, which is connected with the lower bin 4, and a mixing box 20 is fixedly connected to the vertical cylinder 19. When the push plate 3 moves up and down, the vertical cylinder 19 will be driven to move up and down synchronously, and the rotation of the vertical cylinder 19 will drive the mixing box 20 to rotate, thereby mixing and stirring the materials.

A driving mechanism for driving the vertical cylinder 19 to rotate is provided between the vertical cylinder 19 and the tank body 2, and the driving mechanism includes a rotating shaft 28, a chute 29, a limit plate 30 and a motor 31. The rotating shaft 28 is rotatably connected to the bottom of the tank body 2, the chute 29 is provided on the inner wall of the vertical cylinder 19, the limit plate 30 is slidably connected inside the chute 29, and the limit plate 30 is fixedly connected to the rotating shaft 28. The limit plate 30 and the chute 29 are provided, so that even if the vertical cylinder 19 moves up and down and its position changes, the rotating shaft 28 can drive the vertical cylinder 19 to rotate. The motor 31 is fixedly connected to the lower surface of the bottom of the tank body 2, and the rotating shaft 28 is fixedly connected to the driving shaft of the motor 31. Specifically, the rotation of the motor 31 drives the rotating shaft 28 to rotate, and under the cooperation of the chute 29 and the limit plate 30, drives the vertical cylinder 19 to rotate, so that the stirring box 20 mixes and stirs the materials to achieve the stirring function.

During operation, the telescopic end of the electric push rod 18 extends, causing the push plate 3 to move upward inside the tank body 2, and the push plate 3 will press the gas in the upper half of the tank body 2 into the air chamber 6 and the bottom chamber 7 through the air hole 13 in sequence, and enter the interior of the lower warehouse 4 through the first through groove 8.

Furthermore, when the telescopic end of the electric push rod 18 is retracted, the push plate 3 moves downward inside the tank body 2, and with the cooperation of the first one-way valve 9 and the second one-way valve 12, the gas is blown upward from the second through groove 11 to the upper bin 5, thereby causing the material accumulated on the push plate 3 to flip upward, and cooperate with the stirring box 20 to fully mix and stir the material, thereby improving the uniformity of the mixing and stirring;

If the heating device 10 is turned on at this time, the heating device 10 can quickly heat up the gas passing through the bottom chamber 7. The high-temperature gas is blown upward from the second through groove 11 to the upper bin 5, thereby causing the materials accumulated on the push plate 3 to flip upward, and at the same time, the heat is conducted to the inside of the upper bin 5. The wind force and the high-temperature heat act together on the materials to achieve the drying function.

The present invention can realize the functions of stirring and drying at the same time by arranging the push plate 3, the lower bin 4, the upper bin 5 and the lifting mechanism, thereby improving the efficiency of preparing the pearlescent pigment.

At the same time, the wind force and high temperature heat act together on the material, and with the cooperation of the stirring box 20, the stirring plate 23, the stirring rod 27 and other structures, the efficiency of drying the material is improved.

It should be noted that since the gas circulates between the lower warehouse 4, the upper warehouse 5 and other structures, there is a certain amount of gas loss. A pressure device that cooperates with the lower warehouse 4 or the upper warehouse 5 can be provided on the tank body 2, including a pressure gauge and other structures, which can replenish gas or relieve pressure to ensure the normal operation of the device. The pressure device is an existing common technology and will not be elaborated here.

In addition, after the material preparation is completed, there will be residual materials attached to the inner wall of the tank body 2. Considering that the tank body 2 has a certain depth, if it is cleaned manually, especially the lower half of the tank body 2, it will bring inconvenience to the operator. The telescopic end of the electric push rod 18 extends, so that the push plate 3 moves upward inside the tank body 2. The push plate 3 can push and scrape the materials attached to the inner wall of the tank body 2 upward and push and scrape to the upper half of the tank body 2, which is convenient for the operator to clean;

When a lifting mechanism with a long travel distance is provided, the remaining materials can be directly pushed and scraped to the top opening of the tank body 2.

It should be noted that other equipment may also be provided to cooperate with the device to perform operations such as filtration. Filtration is a common existing technology and will not be described in detail here.

Considering that during the drying process, the evaporated high-temperature water vapor will float in the upper half of the tank body 2. When the push plate 3 moves upward inside the tank body 2, the high-temperature water vapor in the upper half of the tank body 2 will be pressed into the air chamber 6 through the air hole 13, and the high-temperature water vapor flows from top to bottom inside the air chamber 6, achieving the effect of heat preservation of the tank body 2 and improving the utilization efficiency of heat energy.

Considering that there is a certain amount of moisture in the high-temperature water vapor, if it directly enters the interior of the bottom chamber 7, it will reduce the heating efficiency of the heating device 10 and may enter the upper warehouse 5 again. Therefore, a baffle ring 14 is fixedly connected to the bottom of the air chamber 6, and an activated carbon ring 15 is fixedly connected between the top of the baffle ring 14 and the inner wall of the air chamber 6. The activated carbon ring 15 is pressed from activated carbon material and can filter out moisture in the gas so that moisture does not enter the interior of the bottom chamber 7. Even if a small amount of moisture enters the interior of the bottom chamber 7, it will be quickly dried by the heat generated by the heating device 10. At the same time, a desiccant or the like can be arranged in the bottom chamber 7 to cooperate with the activated carbon ring 15 to improve the drying effect.

The gas after the water is filtered out enters the bottom chamber 7, and the gas has a certain amount of heat, and can be quickly heated to a specified temperature by the heating device 10, thereby achieving the effect of reducing energy consumption.

The outer diameters of the baffle ring 14 and the activated carbon ring 15 gradually decrease from bottom to top, and the filtered water slides down along the inclined outer walls of the activated carbon ring 15 and the baffle ring 14, and accumulates between the baffle ring 14 and the wall of the air chamber 6. A water outlet pipe 16 is fixedly connected to the bottom of the outer wall of the tank body 2, and the water outlet pipe 16 is connected to the air chamber 6. A solenoid valve 17 is fixedly installed on the water outlet pipe 16, and the solenoid valve 17 can be opened to discharge the accumulated water from the water outlet pipe 16.

After the preparation operation is completed, the activated carbon ring 15 will be in a moist state due to the effect of filtering out moisture, and the residual heat of the heating device 10 can be transferred to the activated carbon ring 15 to quickly dry it for subsequent use.

In order to improve the stirring effect, a slide plate 25 is slidably connected to the inside of the stirring box 20, and the slide plate 25 divides the inside of the stirring box 20 into a first air cavity 21 and a second air cavity 22. The first air cavity 21 is located at one end of the stirring box 20 close to the vertical cylinder 19. A stirring plate 23 is slidably connected to the end of the stirring box 20 away from the vertical cylinder 19, and the stirring plate 23 is fixedly connected to the slide plate 25.

When the push plate 3 moves upward inside the tank body 2, a negative pressure state is formed inside the lower chamber 4, which has a certain suction force and can suck the first air cavity 21 through the vertical tube 19, so that the slide plate 25 slides toward the vertical tube 19 and the stirring plate 23 is recovered; when the push plate 3 moves downward inside the tank body 2, part of the gas will enter the first air cavity 21 inside the stirring box 20 from the vertical tube 19, and push the slide plate 25 to slide in the direction away from the vertical tube 19, so that the stirring plate 23 extends to expand the stirring radius.

The push plate 3 moves up and down inside the tank body 2 and cooperates with the vertical cylinder 19, the stirring box 20 and other structures to make the stirring plate 23 reciprocate and extend, thereby improving the uniformity of stirring.

The high-temperature gas entering the vertical cylinder 19 and the stirring box 20 increases the temperature of the structure itself, which also has a drying effect. In addition, a plurality of second through grooves 11 are provided on the push plate 3 to expand the heat conduction area and further improve the efficiency of material drying.

A first air groove 24 is provided inside the stirring plate 23. The first air groove 24 is located at one end of the stirring plate 23 close to the slide plate 25. The first air groove 24 is connected to the second air cavity 22. Second air grooves 26 are provided at both upper and lower ends of the stirring plate 23. The second air grooves 26 are connected to the first air grooves 24. The second air grooves 26 are located at one end of the stirring plate 23 away from the slide plate 25. The second air grooves 26 are distributed in an inclined shape. A stirring rod 27 is slidable inside the second air groove 26.

When the slide plate 25 slides toward the vertical cylinder 19, the stirring plate 23 is retracted, so that the interior of the second air cavity 22 is in a negative pressure state, and the stirring rod 27 is sucked through the second air cavity 22, the first air groove 24, and the second air groove 26, so that the stirring rod 27 is retracted into the interior of the second air groove 26; the slide plate 25 slides in the direction away from the vertical cylinder 19, and the stirring plate 23 extends. During the sliding process of the slide plate 25, the second air cavity 22 is squeezed, so that the gas in the second air cavity 22 enters the second air groove 26 from the first air groove 24, pushing the stirring rod 27 to slide out.

By providing the first air groove 24, the second air groove 26 and other structures, and cooperating with the slide plate 25, the stirring rod 27 can be reciprocated and extended, thereby further improving the uniformity of stirring.

During specific use, a spring or other structure may be provided to cooperate with the slide plate 25 and the stirring rod 27 to assist in their rapid reset. For example, when the slide plate 25 slides in the direction away from the vertical cylinder 19, the spring is stretched, and when the slide plate 25 slides in the direction of the vertical cylinder 19, the reset elastic force of the spring may assist in the rapid reset of the slide plate 25. Spring reset is a common existing technology and will not be elaborated here.

In addition, after the preparation operation is completed, the push plate 3 moves upward inside the tank body 2, the slide plate 25 slides toward the vertical cylinder 19, and the stirring plate 23 and the stirring rod 27 are both slid back to reduce the area of the stirring structure, which is convenient for operators to clean.

The present invention also includes a method for preparing a highly dispersible pearlescent pigment, including the above-mentioned device for preparing a highly dispersible pearlescent pigment, and further including the following steps:

S1. Pour pearlescent pigment powder and water into tank 2, mix and stir evenly, and perform inorganic coating treatment. The coating treatment is specifically as follows: add aluminum salt solution for Al2O3 coating and silicate solution for SiO2 coating in sequence; and the above solutions are all added dropwise at a uniform speed, and the pH value is maintained between 7 and 9 during the process, and the hydrolysis products are gradually coated on the surface of the pearlescent pigment particles.

S2, filtering, washing, and drying to obtain a pigment substrate, which can be prepared using the above-mentioned device;

S3, preparing the obtained pigment substrate into an aqueous suspension, and adding the modified solution;

S4, stirring, discharging, draining and drying the filter cake to obtain a modified pearlescent pigment.

The modified solution includes a silane surface modifier and a coupling agent. The surface modifier may be, but is not limited to, NQ-9171, wherein the silane surface modifier can improve the wettability of the powder surface, thereby improving the dispersibility of the powder in the solvent, and preparing a highly dispersible pearlescent pigment.

The coupling agent may be, but is not limited to, n-octyltriethoxysilane. The redispersibility of the pigment particles in the solvent system is changed by using a surface modifier; the silane surface modifier and the coupling agent work together to form a composite silane modified layer on the surface of the deposited oxide layer, which has excellent surface wetting properties and can effectively enhance the redispersibility of the pearlescent pigment particles without changing their existing pearlescent glossiness.

Working principle: Pour pearlescent pigment powder and water into the tank body 2. At this time, the push plate 3 is attached to the bottom wall of the tank body 2. Then, the motor 31 is started, and the motor 31 rotates to drive the rotating shaft 28 to rotate, and under the cooperation of the chute 29 and the limit plate 30, the vertical cylinder 19 is driven to rotate, so that the stirring box 20 mixes and stirs the materials.

The electric push rod 18 is started, and the telescopic end of the electric push rod 18 is extended, so that the push plate 3 moves upward inside the tank body 2, and the push plate 3 presses the gas in the upper half of the tank body 2 into the air chamber 6 and the bottom chamber 7 through the air hole 13 in sequence, and enters the interior of the lower warehouse 4 through the first through groove 8; the lower warehouse 4 forms a negative pressure state with a certain suction force, and the first air cavity 21 is sucked through the vertical cylinder 19, so that the slide plate 25 slides toward the vertical cylinder 19, and the stirring plate 23 is recovered; at the same time, during the sliding process of the slide plate 25, the stirring rod 27 is sucked through the second air cavity 22, the first air groove 24, and the second air groove 26, so that the stirring rod 27 is recovered into the interior of the second air groove 26;

When the telescopic end of the electric push rod 18 is retracted, the push plate 3 moves downward inside the tank body 2, and with the cooperation of the first one-way valve 9 and the second one-way valve 12, part of the gas is blown upward from the second through groove 11 to the upper bin 5, thereby causing the material accumulated on the push plate 3 to flip upward, and cooperate with the stirring box 20 to fully mix and stir the material;

The other part of the gas will enter the first air cavity 21 inside the stirring box 20 from the vertical tube 19, and push the slide plate 25 to slide in the direction away from the vertical tube 19, so that the stirring plate 23 extends to expand the stirring radius; at the same time, the slide plate 25 will squeeze the second air cavity 22 during the sliding process, so that the gas in the second air cavity 22 enters the second air groove 26 from the first air groove 24, pushing the stirring rod 27 to slide outward, expanding the stirring range, and thus improving the stirring efficiency.

According to the above steps, the telescopic end of the electric push rod 18 reciprocates and retracts multiple times, and the gas is blown upward from the second through groove 11 to the upper bin 5, causing the material to flip upward; at the same time, the stirring plate 23 and the stirring rod 27 reciprocate and contract, thereby enabling the material to be efficiently stirred, thereby improving the processing efficiency.

When drying operation is required, the heating device 10 is turned on, and the heating device 10 can quickly heat up the gas passing through the bottom chamber 7. The electric push rod 18 is started, and the telescopic end of the electric push rod 18 is extended, so that the push plate 3 moves upward inside the tank body 2, and the push plate 3 presses the gas in the upper half of the tank body 2 into the air chamber 6 and the bottom chamber 7 through the air hole 13 in sequence, and the heating device 10 quickly heats up the gas passing through the bottom chamber 7, and the heated gas enters the lower bin 4 through the first through groove 8; when the telescopic end of the electric push rod 18 is recovered, the push plate 3 moves downward inside the tank body 2, and with the cooperation of the first one-way valve 9 and the second one-way valve 12, part of the high-temperature gas is blown upward from the second through groove 11 to the upper bin 5, thereby causing the materials accumulated on the push plate 3 to flip upward, and at the same time, the heat is conducted to the inside of the upper bin 5, and the wind force and high-temperature heat act together on the materials, and at the same time, with the cooperation of the stirring box 20, the stirring plate 23, the stirring rod 27 and other structures, the efficiency of material drying is improved.

The high-temperature gas entering the vertical cylinder 19 and the stirring box 20 increases the temperature of the structure itself, which also has a drying effect. In addition, a plurality of second through grooves 11 are provided on the push plate 3 to expand the heat conduction area and further improve the efficiency of material drying.

Considering that during the drying process, the evaporated high-temperature water vapor will float in the upper half of the tank body 2, when the push plate 3 moves upward inside the tank body 2, the high-temperature water vapor located in the upper half of the tank body 2 will be pressed into the air chamber 6 through the air hole 13, and the high-temperature water vapor flows from top to bottom inside the air chamber 6, thereby achieving the effect of keeping the tank body 2 warm and improving the utilization efficiency of heat energy.

The activated carbon ring 15 will filter out the moisture in the high-temperature water vapor, and the gas after the moisture is filtered out will enter the bottom chamber 7. The gas has a certain amount of heat and can be quickly heated to a specified temperature by the heating device 10, thereby achieving the effect of reducing energy consumption.

The filtered water slides down along the inclined outer walls of the activated carbon ring 15 and the baffle ring 14 and accumulates between the baffle ring 14 and the wall of the air chamber 6. The electromagnetic valve 17 can be opened to reduce the accumulated water and discharge it through the water outlet pipe 16.

Claims (10)

1. A highly dispersible pearlescent pigment preparation device, comprising a support (1), characterized in that: a tank body (2) is fixedly connected to the support (1), a push plate (3) is slidably arranged inside the tank body (2), the push plate (3) divides the inside of the tank body (2) into an upper bin (5) and a lower bin (4), the upper bin (5) is located above the lower bin (4), an air chamber (6) is provided inside the side wall of the tank body (2), a bottom chamber (7) is provided at the bottom of the tank body (2), the bottom chamber (7) is communicated with the air chamber (6), the bottom chamber (7) is communicated with the lower bin (4) through a first through groove (8), a first one-way valve (9) is fixedly installed inside the first through groove (8), and the bottom chamber (7) is A heating device (10) is fixedly installed inside, a second through groove (11) is formed through the push plate (3), a second one-way valve (12) is fixedly installed inside the second through groove (11), an air hole (13) is formed at the top of the inner wall of the tank body (2), the upper bin (5) is connected to the air chamber (6) through the air hole (13), a vertical cylinder (19) is rotatably connected to the push plate (3), the vertical cylinder (19) is connected to the lower bin (4), a stirring box (20) is fixedly connected to the vertical cylinder (19), a lifting mechanism cooperating with the push plate (3) is provided at the bottom of the tank body (2), and a driving mechanism for driving the vertical cylinder (19) to rotate is provided between the vertical cylinder (19) and the tank body (2). 2. The device for preparing highly dispersible pearlescent pigment according to claim 1, characterized in that: a plurality of the second through grooves (11) are provided. 3. The highly dispersible pearlescent pigment preparation device according to claim 1 is characterized in that: the lifting mechanism comprises an electric push rod (18), the electric push rod (18) is arranged in two, the two electric push rods (18) are evenly distributed about the axis of the tank body (2), the electric push rod (18) is fixedly connected to the lower surface of the tank body (2), the bottom of the tank body (2) is provided with a circular hole through which the telescopic end of the electric push rod (18) passes, and the telescopic end of the electric push rod (18) is fixedly connected to the push plate (3). 4. The device for preparing highly dispersible pearlescent pigment according to claim 1 is characterized in that: the driving mechanism comprises a rotating shaft (28), a slide groove (29), a limit plate (30) and a motor (31), the rotating shaft (28) is rotatably connected to the bottom of the tank body (2), the slide groove (29) is opened on the inner wall of the vertical cylinder (19), the limit plate (30) is slidably connected to the inside of the slide groove (29), the limit plate (30) is fixedly connected to the rotating shaft (28), the motor (31) is fixedly connected to the lower surface of the bottom of the tank body (2), and the rotating shaft (28) is fixedly connected to the driving shaft of the motor (31). 5. The highly dispersible pearlescent pigment preparation device according to claim 1 is characterized in that: a slide plate (25) is slidably connected to the interior of the stirring box (20), and the slide plate (25) divides the interior of the stirring box (20) into a first air cavity (21) and a second air cavity (22), and the first air cavity (21) is located at one end of the stirring box (20) close to the vertical cylinder (19), and a stirring plate (23) is slidably connected to one end of the stirring box (20) away from the vertical cylinder (19), and the stirring plate (23) is fixedly connected to the slide plate (25). 6. The device for preparing highly dispersible pearlescent pigment according to claim 5, characterized in that: a first air groove (24) is provided inside the stirring plate (23), the first air groove (24) is located at one end of the stirring plate (23) close to the slide plate (25), the first air groove (24) is communicated with the second air cavity (22), second air grooves (26) are provided at both upper and lower ends of the stirring plate (23), the second air groove (26) is communicated with the first air groove (24), the second air groove (26) is located at one end of the stirring plate (23) away from the slide plate (25), the second air groove (26) is distributed in an inclined shape, and a stirring rod (27) is slidably disposed inside the second air groove (26). 7. The device for preparing highly dispersible pearlescent pigment according to claim 1 is characterized in that: a retaining ring (14) is fixedly connected to the bottom of the air chamber (6), an activated carbon ring (15) is fixedly connected between the top of the retaining ring (14) and the inner wall of the air chamber (6), the outer diameters of the retaining ring (14) and the activated carbon ring (15) gradually decrease from bottom to top, a water outlet pipe (16) is fixedly connected to the bottom of the outer wall of the tank body (2), the water outlet pipe (16) is communicated with the air chamber (6), and a solenoid valve (17) is fixedly installed on the water outlet pipe (16). 8. The device for preparing highly dispersible pearlescent pigment according to claim 1, characterized in that: the top of the tank body (2) is sealed with a cover plate (32), the bottom of the side wall of the tank body (2) is provided with a discharge port (33), and the inner wall of the discharge port (33) is sealed with a sealing plate (34). 9. A method for preparing a highly dispersible pearlescent pigment, characterized in that it comprises the device for preparing a highly dispersible pearlescent pigment according to any one of claims 1 to 8, and further comprises the following steps: S1. Pour pearlescent pigment powder and water into tank (2), mix and stir evenly, and perform inorganic coating treatment; S2, filtering, washing, and drying to obtain a pigment substrate; S3, preparing the obtained pigment substrate into an aqueous suspension, and adding the modified solution; S4, stirring, draining and drying the filter cake. 10 . The method for preparing highly dispersible pearlescent pigment according to claim 9 , wherein the modified solution comprises a silane surface modifier and a coupling agent.