Pigment infected object is to make the color of the material. Pigments soluble and non-soluble, inorganic and organic difference. Inorganic pigments are generally mineral substances, humans have long known that the use of inorganic pigments, the use of colored soil and minerals, body painting and painting on the wall. Organic pigments are generally derived from plants and marine animals, such as Qian blue, Garcinia and Roman purple extracted from shellfish. Colored pigment is a fine particle powder-like substance is generally insoluble in water, can be dispersed in various, oils, solvents and resins other media. It hiding power, tinting strength, is relatively stable to light, commonly used in the preparation of coatings, inks, and colored plastic and rubber, it can be said that the colorant.

        Iron oxide, ferric oxide alias, limonite burning, burnt ocher, iron oxide, iron oxide red, Pink, Venetian Red (mainly composed of iron oxide) and the like. Chemical formula Fe2O3, was dissolved in hydrochloric acid as a reddish brown powder. Its reddish brown powder is a lower pigment called red iron oxide, used in paint, ink, rubber and other industries, do catalyst, glass, stones, metal polishing agent, used as iron raw material industry.

         Flash dryer (iron oxide red dryer, iron oxide red dryer) is a dried, pulverized and sieved in one of the new continuous drying equipment, especially for the cake-like, paste, mud slurries drying. Heater, feeder, stirring crushing system, classifier, drying competent, cyclone separator, bag filter, fan and other components.

How it works: 
        Hot air inlet tube tangentially into the bottom of the drying chamber annulus, and a spiral rise, while the material from the feeder metered into the tower, and with hot air heat exchange sufficiently larger than the wet material under the action of the agitator is mechanically crushed, low moisture content and smaller particle size of the material rise along with rotating air stream delivered to the separator gas-solid separation, product packaging and collection, and the exhaust after treatment devices dust emptying .

1, the gas inside the drying chamber to the high-speed, short residence time, effectively prevent the wall material viscosity and heat-sensitive materials deterioration, and once dried into a uniform powder products, eliminating the need for crushing, screening and other processes. 　　 

2, the drying chamber is equipped with grading ring and swirl sheet material fineness and final moisture adjustable. Special air distribution system, reducing the resistance of the device, and effectively improve the uniformity of dried material. 　　 

3, the bottom of the dryer to set a special cooling device and pneumatic sealing device to avoid material deterioration phenomenon generated at the bottom of the high temperature zone. 　　 

4, can effectively control the final moisture and fineness, by feeding hot air temperature, the classifier is adjusted to ensure that the moisture content and product fineness uniform.　
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