Mica powder production line

Mica powder in various forms is obtained by grinding and crushing mined mica scrap. In order to get mica powders like wet ground, dry ground mica which is not deterioration in its natural brilliance, color and properties, the advanced grinding mill is needed.

SBM grinding mill is a well known brand among industrial mineral suppliers and exporters of huge variety Such as Mica Mineral, Mica Powder, Industrial Mineral, Mica Flakes, Quartz Mineral, Limestone Rock, Talc Mineral, Indian Marble, Mineral, Limestone, Marble Tiles, Marble Stone, Limestone Tiles, Our efficiency in business has set benchmarks for our competitors on the lines of quality and finesse. Our products are made to high quality standards with proper dimensional stability.

SBM can supply ball mill, Raymond mill, trapezium mill, vertical mill, ultrafine mill for the clients to grind the mined mica.

If you need to konw the price of the mica powder production line or want to get more info, Live Enquiry quickly.

Mica grinding process:

Mica is invaluable in the electrical industry because of its unique combination of physical, chemical and thermal properties, low power loss factor, dielectric constant and dielectric strength.

Scrap mica is ground by three processes, namely dry grinding, wet grinding and micronising. The marketed product is classified according to the grinding process which indicates quality and properties like colour, mesh size and bulk density. Dry mica powder is prepared by grinding in high speed raymond mill, vertical mill, trapezium mill even ultrafine mill. The edges of the flakes get crushed and powdered mica is produced which gives the appearance of flour. Wet-ground mica is produced by grinding in water involving preferential delamination of flakes. Vertical roller mills, with large wheels or rollers rotating on horizontal shafts are used for this purpose.

Mica mineral:

India is the leading producer of muscovite mica followed by Brazil. Other producing countries are the USA, Tanzania, Rhodesia and Argentina. The USA generally produces scrap mica. The leading producers of phlogopite mica are Malagasy Republic and Tanzania whose average annual production are 1,000 tonnes and 300 tonnes respectively. Small production of phologopite is reported from Canada, Tanzania and India.

Mica powder:

Mica powder in various forms is obtained by grinding, breaking mica scrap, which is a slow, costly and extremely complicated process, because of the scrap being tough and having a plate like structure.

The mica obtained from the mine is called crude mica. It requires a little dressing to remove associated pegmatite dirt as well as defective portions such as buckled, wrinkled and wavy mica. They are rifted away with sickel.

Book-mica, split into a size atleast covering an area of 2 1/2 inch and about 1/8 inch thick is called block mica. Block mica split into thin films of thickness 0.004-0.0012 inch is claled mica-film and less than 0.0012 inch thick as splitting.

The laboureres engaged in mica mines and factories where mica is hand-dressed are experts in dressing the crude mica into block, films and splittings. They do it by visual aid only. During the course of processing a considerable portion of mica goea waste. It is termed as scrap mica. The ratio of scrap mica to crude may vary from 60 to 80% depending on the defective portion in the crude mica.

For commercial purposes, mica is graded according to the quality e.g. superfine, clear, stained, fairly stained, good stained, heavily stained and densely stained.

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