What is acicular wollastonite powder? Acicular wollastonite powder is wollastonite powder ground by GKHD Wollastonite ultrafine mill, with high aspect ratio (15-20:1). Because wollastonite has avant-garde and acicular structure and bright and white color, it is called acicular wollastonite powder. Acicular wollastonite powder has the characteristics of good reinforcement, sealing, heat resistance and stability. It is mainly used in the field of industry and agriculture.
Market application prospect of ultra-fine acicular wollastonite powder?
Acicular wollastonite powder is ground by a grinder to an ultra-fine grinding with more than 325 mesh. It can be used in building materials industry, friction materials, plastics industry, ceramic industry, FRP industry, insulation, thermal insulation materials, glass products and polymer composites, paint and coating industry, metallurgy, fire resistance industry, welding electrode industry and so on. In general, acicular wollastonite powder has broad application prospects and relatively wide acceptance in the market. It is a high-quality scheme worthy of consideration for ultra-fine acicular wollastonite powder and wollastonite deep processing.
What are the equipment for producing ultra-fine acicular wollastonite powder?
The equipment for producing ultra-fine acicular wollastonite powder mainly includes GKHD ultrafine mill, air flow mill (flat, circulating, impact, fluidized bed, opposed jet), stirring mill, Raymond mill, mechanical impact mill, vibration mill, etc.
Because the working principles of different grinding mechanisms are different, there are differences in product fineness and aspect ratio. The ultra-fine acicular wollastonite powder is ground by mass stirring. The fineness is generally below 4 µ m, and 90% of the ultra-fine acicular wollastonite powder produced by vibration mill is less than 10 µ M. The ultra-fine acicular shaped wollastonite powder produced by Raymond mill has a fineness of 30 ~ 50 µ m and an aspect ratio of 5 ~ 10. However, because of the way of Raymond mill, Raymond mill can have a good effect on the grinding fineness of wollastonite, but it can not be well guaranteed in the aspect ratio. The ultra-fine acicular shaped wollastonite powder produced by the air mill has a fineness of 5 ~ 15 µ m and a length diameter ratio of about 8 ~ 12. The fineness of GKHD ring roller mill comminuted products is generally 5-45 μ m。