Preparation method and device of iron oxide pigment

A technology for iron oxide pigments and preparation devices, which is applied in the direction of chemical instruments and methods, inorganic pigment treatment, fibrous fillers, etc., which can solve the problems of inability to ensure uniform particle size of iron oxide pigments, poor mixing effect of color paste, and reduction of iron oxide pigment preparation. Improve the mixing effect and mixing rate, improve the grinding performance, and keep the particle size uniform

CN113122020AActive Publication Date: 2021-07-16TONGLING RELY TECH
8 Cites 2 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2021-07-16

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a preparation method of an iron oxide pigment, and relates to the technical field of iron oxide pigment preparation, and the preparation method specifically comprises the following steps: crushing and pulping a pigment filter cake, grinding slurry, carrying out color mixing treatment on the ground color paste, and finally granulating and drying through a spray drying tower and a fluidized bed system. According to the preparation method of the iron oxide pigment, slurry entering the grinding frame is heated, particles of the heated slurry are expanded, the grinding performance of the particles of the slurry is obviously improved, the particles in the slurry are rapidly ground between the grinding block and the filter screen, in this way, the particle size of the prepared iron oxide pigment can be kept uniform, meanwhile, the preparation efficiency of the iron oxide pigment can be improved, slurry in the color mixing tank is heated through steam, particulate matter in the slurry is kept in an active state, the high-speed stirring effect of the material mixing frame is matched, and the mixing effect and the mixing speed of the color paste are effectively improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of iron oxide pigment preparation, in particular to a preparation method and device for iron oxide pigment. Background technique

[0002] Iron oxide is the second largest inorganic pigment next to titanium white, and it is also the largest color inorganic pigment. Iron oxide pigments mainly include iron oxide red, yellow, black and brown iron oxide as the basic material. , iron oxide yellow, also known as iron oxyhydroxide, will dehydrate and decompose at about 177 degrees Celsius and turn red. Therefore, the application of ordinary iron yellow pigments in high-temperature occasions such as plastic processing and baking coatings is limited. Iron oxide The surface coating of the yellow pigment can improve its temperature resistance, thereby expanding the application field of the iron oxide yellow pigment. The preparation process is mainly prepared by a wet method, and the wet method can make the pigment prepa...

Examples

Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] see Figure 1-4 Shown, a kind of preparation method of iron oxide pigment comprises the following steps:

[0031] Step 1. Send the synthetic pigment filter cake into the inside of the beating box 1 from the feed hopper 4, feed water and additives into the inside of the beating box 1 through two feeding pipes 17, and then start the beating motor 16, and the beating motor 16 The output shaft drives the beating blade to crush and beat the material inside ...