Kaolin

Kaolin is one of the most common minerals. Kaolin powder is used in ceramics, medicine, coated paper, as a food additive, in toothpaste, as a light diffusing material in white incandescent light bulbs, and in cosmetics. It is generally the main component in porcelain.

Kaolin crushing and grinding equipment

The crushing process can be constructed by Jaw Crusher, Vibrating Feeder, Vibrating Screen, and Belt Conveyor. Jaw Crusher could be changed through Cone Crushers or Impact Crusher, which depends on need towards the size, shape of the gems and design project of kaolin manufacturing line.
Ball Mill for kaolin is the common grinding mill in kaolin production line, it is used for coarse grinding, the finished size is 0.074-0.4 mm. Raymond Mill is the traditonal Grinding mill and porpular around the world. It finish particles have a good uniformity of finess, with passing screen rate as high as 98%. MTM Trapezium grinding mill is used as substitute of raymond mill for grinding Kaolin.

Kaolin processing flow

Wet process concludes mineral preparation, mineral dressing and processing, products processing three stages. Mineral preparation consists of work of burdening, crushing, stirring pulp and so on. During the dressing and processing working process, it mainly consists of hydraulic classification, flotation separation, selective flocculation, magnetic separation, chemical processing (albifaction) working process, this is in order to clear away the different impurities.
In general, dry process is mainly crushing the mined raw ore to around 25mm, then the ore goes into Cone Crusher for further crushing in order to make the size reach to around 6mm. The hot air that was blew into Cone Crusher could make the kaolin moisture from 20% to 10%. The crushed ore will have a further grinding process by Raymond Mill which is equipped with centrifugal separator and cyclone dust extractor.

Application & Specification

Application: used for ceramics

Production Fineness: 200mesh D90

Ceramic industry is the earliest industry in which kaolin is used and its dosage is relatively large. The general dosage is 20%-30% of the formula.
Application: used in industry

Production Fineness: 200mesh D90

Kaolin has become a necessary mineral raw material for dozens of industries such as paper making, ceramics, rubber, chemical industry, paint, medicine and national defense.