Environment-friendly concentrated equipment for light-fast yellow pigment

By designing an environmentally friendly, lightfast yellow pigment concentration device with a mixing tank and mixing mechanism, the problems of pigment agglomeration and hue shift caused by temperature gradients in evaporative concentrators have been solved, achieving uniform heating and efficient concentration of pigments and improving pigment quality.

CN224292527UActive Publication Date: 2026-05-29PENGLAI XINGUANG PIGMENT CHEM

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PENGLAI XINGUANG PIGMENT CHEM
Filing Date
2025-04-27
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing evaporative concentrators suffer from localized overheating due to temperature gradients during the heating process, which can lead to pigment agglomeration, hue shift, and decreased tinting strength.

Method used

An environmentally friendly, lightfast yellow pigment concentration device was designed, comprising a stirring tank, a drive mechanism, and a stirring mechanism. The stirring mechanism ensures that the pigment is heated evenly, eliminates temperature differences, prevents clumping, and keeps the pigment within a suitable temperature range.

Benefits of technology

It achieves uniform heating of pigments, prevents clumping, maintains consistent pigment quality, improves heat transfer efficiency and fluidity, avoids chemical deterioration, and enhances the hue stability and tinting strength of pigments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of concentration equipment, and disclose a kind of environment-friendly light-fast yellow pigment concentration equipment, comprising: mixing barrel, the top end fixed mounting of mixing barrel has gear ring;Driving mechanism, the driving mechanism is set at the top end of mixing barrel;Stirring mechanism, the stirring mechanism is set in the inside of mixing barrel.This kind of environment-friendly light-fast yellow pigment concentration equipment, due to the design of stirring mechanism, it can effectively drive the pigment close to the inner wall of mixing barrel to the center of mixing barrel inside circular motion, effectively eliminate pigment slurry radial temperature difference, prevent pigment caking phenomenon occurs, so that pigment slurry concentration distribution is balanced, fluidity is guaranteed, completely break the heat transfer and flow vicious cycle caused by local concentration caking, and can avoid pigment chemical metamorphosis due to local high temperature, uniform temperature field makes pigment always be in suitable processing temperature interval, effectively inhibit hue shift and tinting strength attenuation, significantly improve pigment quality consistency.
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Description

Technical Field

[0001] This utility model relates to the field of concentration equipment technology, and more specifically, to an environmentally friendly, lightfast yellow pigment concentration device. Background Technology

[0002] In the pigment production process, evaporative concentrators have become one of the mainstream concentration equipment due to their ability to effectively increase the solid content of pigments. They achieve concentration by heating the pigment slurry to vaporize and evaporate the solvent. However, in the heating process of existing evaporative concentrators, the heat source is usually arranged around the tank wall, which causes the pigment near the tank wall to be directly heated and have a much higher temperature than the central area of ​​the tank, forming a significant temperature gradient. This not only aggravates local overheating and energy waste, but also causes the pigment to over-evaporate solvent. After the concentration rises sharply, it is easy to form agglomerates, which further hinders heat transfer and material flow, forming a vicious cycle. Moreover, because the pigment in the high-temperature area near the tank wall is in an ultra-suitable temperature environment for a long time, it is very easy to cause changes in chemical structure, resulting in pigment hue shift, decreased tinting strength and other quality deterioration phenomena. Therefore, it is necessary to improve it. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides an environmentally friendly, lightfast yellow pigment concentration device, which has the advantage of making the pigment heat evenly.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an environmentally friendly, lightfast yellow pigment concentration device, comprising:

[0005] A mixing tank, wherein a toothed ring is fixedly installed at the top of the mixing tank;

[0006] A drive mechanism is disposed at the top of the mixing tank;

[0007] A stirring mechanism, wherein the stirring mechanism is disposed inside the stirring tank;

[0008] The stirring mechanism includes a gear, the outer surface of which meshes with the outer surface of a gear ring. A long shaft is fixedly sleeved inside the gear, and several sets of first stirring blades are arranged on the long shaft. A scraper is movably sleeved on the outer surface of the long shaft, and the outer surface of the scraper is in contact with the inner wall of the stirring tank. A vertical shaft is fixedly sleeved inside the scraper, and a connecting rod is fixedly sleeved on the outer surface of the vertical shaft. A rotating shaft is fixedly sleeved inside the connecting rod, and a second stirring blade is fixedly sleeved on the outer surface of the rotating shaft.

[0009] As a preferred embodiment of this utility model, the driving mechanism includes:

[0010] A support frame, the bottom end of which is fixedly connected to the top end of the mixing tank;

[0011] The motor has its bottom end fixedly connected to the top end of the bracket, and its output shaft is fixedly sleeved with a short shaft, the inside of the bottom end of the short shaft being fixedly sleeved with the top end of the rotating shaft.

[0012] As a preferred embodiment of this utility model, a fixing block is fixedly installed at the top of the scraper, the interior of the fixing block is movably sleeved with the outer surface of the long shaft, a retaining ring is fixedly installed on the outer surface of the fixing block, and the interior of the retaining ring is movably connected with the outer surface of the toothed ring.

[0013] As a preferred embodiment of this utility model, a fixed shell is fixedly fitted onto the outer surface of the mixing tank, and a heating wire is fixedly installed inside the fixed shell, with the heating wire located around the periphery of the mixing tank.

[0014] As a preferred embodiment of this utility model, a feed pipe is fixedly connected to the bottom of the mixing tank, and a valve is provided on the feed pipe.

[0015] As a preferred embodiment of this utility model, a fixing ring is fixedly sleeved on the outer surface of the fixing shell, and a support frame is fixedly installed at the bottom end of the fixing ring.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This environmentally friendly, lightfast yellow pigment concentration equipment, due to the design of the stirring mechanism, can effectively drive the pigment close to the inner wall of the stirring tank to circulate towards the center of the stirring tank, effectively eliminating radial temperature differences in the pigment slurry, preventing pigment agglomeration, ensuring a uniform concentration distribution of the pigment slurry, guaranteeing fluidity, completely breaking the vicious cycle of heat transfer and flow caused by localized concentration and agglomeration, and preventing chemical deterioration of the pigment due to localized high temperatures. The uniform temperature field keeps the pigment in a suitable processing temperature range, effectively suppressing hue shift and tinting strength decay, and significantly improving the consistency of pigment quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the stirring mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the retaining ring of this utility model;

[0022] Figure 5 This is a schematic diagram of the heating wire of this utility model.

[0023] In the diagram: 1. Mixing tank; 2. Gear ring; 3. Gear; 4. Long shaft; 5. First mixing blade; 6. Scraper; 7. Vertical shaft; 8. Connecting rod; 9. Rotating shaft; 10. Second mixing blade; 11. Support; 12. Motor; 13. Short shaft; 14. Fixing block; 15. Retaining ring; 16. Fixing shell; 17. Heating wire; 18. Feed pipe; 19. Valve; 20. Fixing ring; 21. Support frame. Detailed Implementation

[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] like Figures 1 to 5 As shown, this utility model provides an environmentally friendly, lightfast yellow pigment concentration device, comprising:

[0026] A mixing tank 1, with a toothed ring 2 fixedly installed at the top of the mixing tank 1;

[0027] The drive mechanism is located at the top of the mixing tank 1;

[0028] The stirring mechanism is located inside the stirring tank 1;

[0029] The stirring mechanism includes a gear 3, the outer surface of which meshes with the outer surface of the gear ring 2. A long shaft 4 is fixedly sleeved inside the gear 3. Several sets of first stirring blades 5 are provided on the long shaft 4. A scraper 6 is movably sleeved on the outer surface of the long shaft 4. The outer surface of the scraper 6 is in contact with the inner wall of the stirring tank 1. A vertical shaft 7 is fixedly sleeved inside the scraper 6. A connecting rod 8 is fixedly sleeved on the outer surface of the vertical shaft 7. A rotating shaft 9 is fixedly sleeved inside the connecting rod 8. A second stirring blade 10 is fixedly sleeved on the outer surface of the rotating shaft 9.

[0030] When the rotating shaft 9 rotates, it will simultaneously drive the connecting rod 8 and the second stirring blade 10 to rotate. At this time, the second stirring blade 10 will stir the pigment inside the mixing tank 1. Meanwhile, the connecting rod 8 will drive the scraper 6 to rotate through the vertical shaft 7. At this time, the scraper 6 will scrape the pigment close to the inner wall of the mixing tank 1. At the same time, the scraper 6 will drive the gear 3 to rotate through the long shaft 4. Since the gear 3 meshes with the gear ring 2, the gear 3 will drive the long shaft 4 and the first stirring blade 5 to rotate around the rotating shaft 9 as the axis while also rotating on their own axis. At this time, the first stirring blade 5 will stir the pigment scraped by the scraper 6 and force it to move towards the center inside the mixing tank 1. During this process, the pigment will circulate inside the mixing tank 1, so that the pigment can be heated evenly.

[0031] The drive mechanism includes:

[0032] Support 11, the bottom end of support 11 is fixedly connected to the top end of mixing tank 1;

[0033] The bottom end of the motor 12 is fixedly connected to the top end of the bracket 11. The output shaft of the motor 12 is fixedly sleeved with a short shaft 13. The inside of the bottom end of the short shaft 13 is fixedly sleeved with the top end of the rotating shaft 9.

[0034] When motor 12 is running, short shaft 13 will drive rotating shaft 9 to rotate.

[0035] Among them, a fixing block 14 is fixedly installed at the top of the scraper 6. The inside of the fixing block 14 is movably sleeved with the outer surface of the long shaft 4. A retaining ring 15 is fixedly installed on the outer surface of the fixing block 14. The inside of the retaining ring 15 is movably connected with the outer surface of the toothed ring 2.

[0036] Due to the design of the fixing block 14 and the retaining ring 15, the gear ring 2 and the gear 3 can be well protected to prevent the pigment from contacting the gear ring 2 and the gear 3 and affecting the transmission effect of the gear ring 2 and the gear 3.

[0037] The outer surface of the mixing tank 1 is fixedly fitted with a fixed shell 16, and a heating wire 17 is fixedly installed inside the fixed shell 16. The heating wire 17 is located on the periphery of the mixing tank 1.

[0038] When the heating wire 17 is running, it can heat the pigment inside the mixing tank 1. Due to the design of the fixed shell 16, the heating wire 17 can be well protected.

[0039] The mixing tank 1 has a feed pipe 18 fixedly connected to the bottom of the tank, and a valve 19 is installed on the feed pipe 18.

[0040] Due to the design of the discharge pipe 18, the pigment that has been concentrated inside the mixing tank 1 can be discharged from the mixing tank 1 through the discharge pipe 18. Due to the design of the valve 19, it is convenient for the operator to open or close the discharge pipe 18.

[0041] Among them, a fixing ring 20 is fixedly sleeved on the outer surface of the fixing shell 16, and a support frame 21 is fixedly installed at the bottom end of the fixing ring 20.

[0042] Due to the design of the fixing ring 20 and the support frame 21, the equipment as a whole can be well supported, allowing the equipment to be placed stably on the ground.

[0043] Working principle and usage process of this utility model:

[0044] When the operator needs to concentrate the pigment, firstly, the operator pours the pigment into the mixing tank 1. Then, the operator activates the heating wire 17, which heats the mixing tank 1, causing the moisture inside the pigment to evaporate. Next, the operator starts the motor 12, at which point the short shaft 13 drives the rotating shaft 9 to rotate. Simultaneously, the rotating shaft 9 drives the connecting rod 8 and the second stirring blade 10 to rotate. When the second stirring blade 10 rotates, it stirs the pigment inside the mixing tank 1. When the connecting rod 8 rotates, it drives the scraper 6 to rotate via the vertical shaft 7. Since the outer surface of the scraper 6 is in contact with the inner wall of the mixing tank 1, the rotation of the scraper 6 scrapes the pigment near the inner wall of the mixing tank 1. At the same time, the long shaft 4 rotates around the rotating shaft 9 under the drive of the scraper 6. The long shaft 4 then drives the gear 3 around the rotating shaft 9. As the gear 3 rotates around the shaft 9, the outer surface of the gear 3 meshes with the gear ring 2. Therefore, when the gear 3 rotates around the shaft 9, it will simultaneously drive the long shaft 4 to rotate. At this time, the first stirring blade 5 will rotate around the shaft 9 under the drive of the long shaft 4. Due to the design of the first stirring blade 5, when the first stirring blade 5 rotates, it can stir the pigment scraped by the scraper 6 and drive the pigment to move towards the center of the mixing tank 1. During this process, the pigment will circulate inside the mixing tank 1. In this state, the fluid molecules move violently and irregularly, which can greatly improve the mass transfer and heat transfer efficiency, so as to promote the uniform transfer of heat and thus achieve the function of uniformly heating the pigment. After the pigment concentration process is completed, the operator opens the valve 19, and the pigment inside the mixing tank 1 will be discharged from the inside of the mixing tank 1 through the discharge pipe 18.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly, lightfast yellow pigment concentration device, characterized in that, Including: A mixing tank (1) is provided with a toothed ring (2) fixedly installed at the top of the mixing tank (1). A drive mechanism is provided at the top of the mixing tank (1); A stirring mechanism is disposed inside the stirring tank (1); The stirring mechanism includes a gear (3), the outer surface of the gear (3) meshes with the outer surface of the gear ring (2), a long shaft (4) is fixedly sleeved inside the gear (3), a number of first stirring blades (5) are provided on the long shaft (4), a scraper (6) is movably sleeved on the outer surface of the long shaft (4), the outer surface of the scraper (6) is in contact with the inner wall of the stirring tank (1), a vertical shaft (7) is fixedly sleeved inside the scraper (6), a connecting rod (8) is fixedly sleeved on the outer surface of the vertical shaft (7), a rotating shaft (9) is fixedly sleeved inside the connecting rod (8), and a second stirring blade (10) is fixedly sleeved on the outer surface of the rotating shaft (9).

2. The environmentally friendly, lightfast yellow pigment concentration equipment according to claim 1, characterized in that: The driving mechanism includes: The support (11) is fixedly connected at its bottom end to the top end of the mixing tank (1); The motor (12) is fixedly connected to the top of the bracket (11) at its bottom end. The output shaft of the motor (12) is fixedly sleeved with a short shaft (13). The inside of the bottom end of the short shaft (13) is fixedly sleeved with the top of the rotating shaft (9).

3. The environmentally friendly, lightfast yellow pigment concentration equipment according to claim 1, characterized in that: A fixing block (14) is fixedly installed at the top of the scraper (6). The interior of the fixing block (14) is movably connected to the outer surface of the long shaft (4). A retaining ring (15) is fixedly installed on the outer surface of the fixing block (14). The interior of the retaining ring (15) is movably connected to the outer surface of the toothed ring (2).

4. The environmentally friendly, lightfast yellow pigment concentration equipment according to claim 1, characterized in that: A fixed shell (16) is fixedly sleeved on the outer surface of the mixing tank (1), and a heating wire (17) is fixedly installed inside the fixed shell (16). The heating wire (17) is located on the periphery of the mixing tank (1).

5. The environmentally friendly, lightfast yellow pigment concentration equipment according to claim 1, characterized in that: The bottom of the mixing tank (1) is fixedly fitted with a feed pipe (18), and a valve (19) is provided on the feed pipe (18).

6. The environmentally friendly, lightfast yellow pigment concentration equipment according to claim 4, characterized in that: A fixing ring (20) is fixedly sleeved on the outer surface of the fixing shell (16), and a support frame (21) is fixedly installed at the bottom end of the fixing ring (20).