Efficient color paste grinding and dispersing device

Abstract

The utility model discloses an efficient color paste grinding and dispersing device which comprises a dispersing mechanism, a cleaning mechanism and a temperature control mechanism, the dispersion mechanism comprises a pre-dispersion tank, a buffer tank and a dispersion tank, the lower end and the upper end of the pre-dispersion tank are respectively provided with a first discharge port and a first feed port, the pre-dispersion tank is connected with the buffer tank through the first discharge port, and the first discharge port is provided with a first valve; the upper end of the dispersion tank is provided with a second feed port, the lower end of the dispersion tank is provided with a second discharge port, the dispersion tank is connected with the buffer tank through the second feed port, and the second discharge port and the second feed port are respectively provided with a second valve and a third valve; a circulating pipe is arranged on one side of the dispersing tank, and a circulating pump is arranged on the circulating pipe; the cleaning mechanism is used for cleaning tank cavities of the pre-dispersing tank, the buffer tank and the dispersing tank; the temperature control mechanism is used for controlling the temperature in the pre-dispersing tank and the dispersing tank. According to the utility model, the color paste particle size consistency is improved, the dispersion efficiency is improved, and efficient and stable continuous production is realized.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and in particular to a high-efficiency pigment paste grinding and dispersing device. Background Technology

[0002] In traditional white pigment production, direct grinding and dispersion in a single tank is usually used. However, due to the high density of heavy pigments such as titanium dioxide, they tend to settle and accumulate in a single dispersion tank, resulting in a wide particle size distribution, poor pigment uniformity, and unreliable quality. Moreover, long-term mechanical stirring or grinding is required, which is inefficient and cannot form continuous and efficient production.

[0003] Therefore, in order to solve the above problems, it is necessary to develop an efficient pigment grinding and dispersing device to improve the consistency of pigment particle size, increase dispersion efficiency, and achieve efficient and stable continuous production. Utility Model Content

[0004] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0005] A high-efficiency pigment paste grinding and dispersing device, characterized in that it includes a dispersing mechanism, a cleaning mechanism, and a temperature control mechanism;

[0006] The dispersion mechanism includes a pre-dispersion tank, a buffer tank, and a dispersion tank arranged sequentially from top to bottom. The pre-dispersion tank has a first discharge port at its lower end and a first inlet port on one side of its upper end. The pre-dispersion tank is connected to the buffer tank through the first discharge port, and a first valve is provided on the first discharge port.

[0007] The dispersion tank is provided with a second feed inlet on one side of the upper end and a second discharge outlet at the lower end. The dispersion tank is connected to the buffer tank through the second feed inlet. A second valve is provided on the second discharge outlet and a third valve is provided on the second feed inlet.

[0008] A circulation pipe communicating with the tank cavity is provided on one side of the dispersion tank. One end of the circulation pipe is connected to the bottom of the dispersion tank, and the other end is connected to the upper side of the dispersion tank. A circulation pump is provided on the circulation pipe.

[0009] The cleaning mechanism is used to clean the cavities of the pre-dispersion tank, buffer tank, and dispersion tank.

[0010] The temperature control mechanism is used to control the temperature inside the pre-dispersion tank and the dispersion tank.

[0011] Preferably, the pre-dispersion tank is provided with a first stirring assembly, which is electrically connected to a first valve;

[0012] The dispersion tank is equipped with a second stirring assembly, which is electrically connected to a second valve and a third valve.

[0013] Preferably, the stirring disc of the first stirring assembly is a high-speed sawtooth or slotted dispersion disc.

[0014] Preferably, the stirring head of the second stirring assembly is a high-shear homogenizing emulsifying head.

[0015] Preferably, the cleaning mechanism includes an annular spray pipe and a water supply pipe. The annular spray pipe is respectively disposed on the upper side of the pre-dispersion tank, the buffer tank and the dispersion tank. The annular spray pipe has a plurality of water spray holes inclined toward the inner wall of the tank around its circumference.

[0016] One end of the water supply pipe is connected to a ring-shaped spray pipe, and the other end is connected to a high-pressure water source. A fourth valve is installed on each water supply pipe.

[0017] Preferably, the annular spray pipe is provided with a spray head on the spray hole.

[0018] Preferably, the temperature control mechanism includes a cooling jacket, which is respectively disposed on the outside of the pre-dispersion tank and the dispersion tank.

[0019] Preferably, the temperature control mechanism further includes a temperature sensor electrically connected to the cooling jacket. The temperature sensor is respectively installed on the pre-dispersion tank and the dispersion tank, and is used to detect the temperature of the pigment paste in the pre-dispersion tank and the dispersion tank respectively.

[0020] Preferably, the first valve, the second valve, and the third valve are solenoid valves.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] 1. This utility model improves the uniformity of pigment particle size, enhances dispersion efficiency, and enables efficient and stable continuous production.

[0023] 2. By installing a circulation pump on one side of the dispersion tank, titanium dioxide particles are forced to remain suspended, preventing them from settling to the bottom and accelerating dynamic shear dispersion.

[0024] 3. By combining the design of buffer tanks and valves, the pre-dispersion and main dispersion stages are connected to avoid production interruptions and improve processing continuity.

[0025] 4. By combining the cleaning mechanism with valves, the tank cavities of the pre-dispersion tank, buffer tank, and dispersion tank are quickly cleaned, allowing residues to be discharged rapidly, reducing residual contamination, and ensuring batch consistency.

[0026] 5. By setting up a temperature control mechanism, the temperature of the pigment in the pre-dispersion tank and the dispersion tank is controlled to prevent overheating during high-speed dispersion from causing deterioration of the pigment performance. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] The components include: 1. Cleaning mechanism; 2. Temperature control mechanism; 3. Pre-dispersion tank; 4. Buffer tank; 5. Dispersion tank; 6. Circulation pipe; 7. Circulation pump; 8. High-pressure water source; 9. Fourth valve; 11. Annular spray pipe; 12. Water supply pipe; 13. Spray head; 21. Cooling jacket; 22. Temperature sensor; 31. First stirring assembly; 51. Second stirring assembly; 10. First valve; 20. Third valve; 30. First feed inlet; 3a. First discharge outlet; 3b. Second feed inlet; 5a. Second discharge outlet; 5b. Detailed Implementation

[0029] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0030] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," "up," "down," "front," "back," and similar expressions used in this document are for illustrative purposes only.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0032] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0033] like Figure 1 As shown, a high-efficiency pigment grinding and dispersing device includes a dispersing mechanism, a cleaning mechanism 1, and a temperature control mechanism 2. The dispersing mechanism includes a pre-dispersing tank 3, a buffer tank 4, and a dispersing tank 5 arranged sequentially from top to bottom. The lower end of the pre-dispersing tank 3 is provided with a first discharge port 3b, and the upper side is provided with a first feed port 3a. The pre-dispersing tank 3 is connected to the buffer tank 4 through the first discharge port 3b, and a first valve 10 is provided on the first discharge port 3b.

[0034] The dispersion tank 5 is provided with a second inlet 5a on one side of the upper end and a second outlet 5b at the lower end. The dispersion tank 5 is connected to the buffer tank 4 through the second inlet 5a. A second valve 20 is provided on the second outlet 5b and a third valve 30 is provided on the second inlet 5a.

[0035] A circulation pipe 6 communicating with the tank cavity is provided on one side of the dispersion tank 5. One end of the circulation pipe 6 is connected to the bottom of the dispersion tank 5, and the other end is connected to the upper side of the dispersion tank 5. A circulation pump 7 is provided on the circulation pipe 6.

[0036] The cleaning mechanism 1 is used to clean the tank cavities of the pre-dispersion tank 3, buffer tank 4, and dispersion tank 5.

[0037] The temperature control mechanism 2 is used to control the temperature inside the pre-dispersion tank 3 and the dispersion tank 5.

[0038] In this embodiment, firstly, solvent, titanium dioxide, dispersion resin, and defoamer are poured into pre-dispersion tank 3 all at once to initially break up agglomerates, reduce the load on the main tank, and improve the uniformity of the titanium dioxide slurry particle size. Then, the pre-dispersed titanium dioxide slurry is transferred to dispersion tank 5 through buffer tank 4, and the titanium dioxide particles are forcibly suspended by circulation pump 7 to prevent them from settling to the bottom. At the same time, dynamic shear force is used to improve dispersion efficiency. The buffer tank 4 is set up to connect the pre-dispersion and main dispersion stages, avoiding production process interruption and improving processing continuity. The cleaning mechanism 1 is set up to quickly clean the tank cavities of pre-dispersion tank 3, buffer tank 4, and dispersion tank 5, reducing residual contamination and ensuring batch consistency. The temperature control mechanism 2 is set up to control the temperature inside pre-dispersion tank 3 and dispersion tank 5 to prevent overheating during high-speed dispersion from deteriorating the performance of the slurry. The circulation pump forces the titanium dioxide particles to suspend, preventing them from settling to the bottom and accelerating dynamic shear dispersion.

[0039] The grinding and dispersing device described above improves the uniformity of pigment particle size, increases dispersion efficiency, and enables efficient and stable continuous production.

[0040] Furthermore, such as Figure 1 As shown, the pre-dispersion tank 3 is equipped with a first stirring assembly 31, which is electrically connected to the first valve 10;

[0041] The dispersion tank 5 is equipped with a second stirring assembly 51, which is electrically connected to the second valve 20 and the third valve 30.

[0042] In this embodiment, when the first stirring component 31 completes stirring, the first valve 10 is opened, allowing the pre-dispersed titanium dioxide slurry in the pre-dispersion tank 3 to enter the buffer tank 4 for pre-storage under gravity. When the second stirring component 51 completes stirring, it stops, and the third valve 30 is opened to discharge the finished pigment paste. After completion, the third valve 30 is closed, and the second valve 20 is opened, allowing the pre-dispersed titanium dioxide slurry in the buffer tank 4 to enter the dispersion tank 5. After a set time is reached, the second valve 20 is closed, and then the second stirring component 51 is started. By repeating the above steps, efficient, stable, and continuous production of white pigment paste can be achieved.

[0043] Furthermore, such as Figure 1 As shown, in order to break down and evenly distribute titanium dioxide particles and improve pre-dispersion efficiency and effect, the stirring disc of the first stirring component 31 is a high-speed sawtooth or slotted dispersion disc.

[0044] Furthermore, such as Figure 1 As shown, in order to improve the grinding and dispersion effect and efficiency of white pigment, the stirring head of the second stirring component 51 is a high-shear homogenizing emulsifying head.

[0045] Furthermore, such as Figure 1 As shown, the cleaning mechanism 1 includes an annular spray pipe 11 and a water supply pipe 12. The annular spray pipe 11 is respectively installed on the upper side of the pre-dispersion tank 3, buffer tank 4 and dispersion tank 5. The annular spray pipe 11 has a plurality of water spray holes that are inclined toward the inner wall of the tank.

[0046] One end of the water supply pipe 12 is connected to the annular spray pipe 11, and the other end is connected to the high-pressure water source 8. A fourth valve 9 is installed on the water supply pipe 12.

[0047] In this embodiment, when it is necessary to remove residual pigment from the tank, the fourth valve 9 is opened, and high-pressure water is sprayed onto the inner wall of the tank from multiple spray holes at different positions after passing through the water supply pipe 12 and the annular spray pipe 11. At the same time, the first valve 10, the second valve 20 and the third valve 30 are opened simultaneously, so that the residual dirt is discharged from the tank, thereby achieving rapid cleaning of residual pigment, reducing residual pollution and ensuring batch consistency.

[0048] Furthermore, such as Figure 1 As shown, in order to improve the cleaning effect on the residue on the inner wall of the tank, a spray head 13 is provided on the spray hole of the annular spray pipe 11.

[0049] Furthermore, such as Figure 1 As shown, in order to prevent the heat generated by the high-speed dispersion of the pre-dispersion tank 3 and the dispersion tank 5 from being too high and damaging the performance of the pigment, the temperature control mechanism 2 includes a cooling jacket 21, which is respectively provided on the outside of the pre-dispersion tank 3 and the dispersion tank 5.

[0050] Furthermore, such as Figure 1 As shown, in order to more accurately and energy-efficiently prevent the color paste temperature inside the tank from becoming too high, the temperature control mechanism 2 also includes a temperature sensor 22 electrically connected to the cooling jacket 21. The temperature sensor 22 is respectively set on the pre-dispersion tank 3 and the dispersion tank 5, and is used to detect the temperature of the color paste in the pre-dispersion tank 3 and the dispersion tank 5 respectively.

[0051] Furthermore, the first valve 10, the second valve 20, and the third valve 30 are solenoid valves.

[0052] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model patent.

Claims

1. A high efficiency mill disperser for colorant paste, characterized by, The device comprises a dispersing mechanism, a cleaning mechanism and a temperature control mechanism. The dispersing mechanism comprises a pre-dispersing tank, a buffer tank and a dispersing tank arranged from top to bottom. The pre-dispersing tank is provided with a first discharge port at the lower end and a first inlet port at one side of the upper end. The pre-dispersing tank is connected with the buffer tank through the first discharge port. The dispersing tank is provided with a second inlet port at one side of the upper end and a second discharge port at the lower end. The dispersing tank is connected with the buffer tank through the second inlet port.

2. A high efficiency mill for grinding and dispersing colorants as claimed in claim 1 wherein, The dispersing tank is provided with a circulating pipe connected with the tank cavity. The circulating pipe is connected with the bottom of the dispersing tank at one end and with one side of the upper end of the dispersing tank at the other end.

3. A high efficiency mill for grinding and dispersing colorants as defined in claim 2, wherein The circulating pipe is provided with a circulating pump.

4. A high efficiency mill for grinding and dispersing colorants as defined in claim 2, wherein The cleaning mechanism is used for cleaning the tank cavities of the pre-dispersing tank, the buffer tank and the dispersing tank.

5. The high efficiency mill for grinding and dispersing colorants of claim 1 wherein, The temperature control mechanism is used for controlling the temperature in the pre-dispersing tank and the dispersing tank. The pre-dispersing tank is provided with a first stirring assembly.

6. A high efficiency mill for grinding and dispersing colorants as defined in claim 5, wherein The first stirring assembly is electrically connected with the first valve.

7. A high efficiency mill for dispersing colorants as defined in claim 1, wherein The dispersing tank is provided with a second stirring assembly.

8. A high efficiency mill for grinding and dispersing colorants as defined in claim 7, wherein The second stirring assembly is electrically connected with the second valve and the third valve.

9. A high efficiency mill base grinding and dispersing device according to claim 1 wherein, The stirring disc of the first stirring assembly is a high-speed sawtooth or slotted dispersing disc. The stirring head of the second stirring assembly is a high-shear homogenizing emulsifying head. The cleaning mechanism comprises a ring-shaped spray pipe and a water supply pipe. The ring-shaped spray pipes are arranged in the tank cavities of the pre-dispersing tank, the buffer tank and the dispersing tank. The ring-shaped spray pipes are provided with a plurality of water spray holes inclined toward the inner wall of the tank. One end of the water supply pipe is connected with the ring-shaped spray pipes, and the other end is connected with a high-pressure water source. The water supply pipe is provided with a fourth valve. The water spray holes of the ring-shaped spray pipes are provided with spray heads. The temperature control mechanism comprises cooling jackets. The cooling jackets are arranged on the outer sides of the pre-dispersing tank and the dispersing tank. The temperature control mechanism further comprises temperature sensors electrically connected with the cooling jackets. The temperature sensors are arranged on the pre-dispersing tank and the dispersing tank to detect the temperature of the color paste in the pre-dispersing tank and the dispersing tank, respectively. The first valve, the second valve and the third valve are electromagnetic valves.

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