Wollastonite acicular mineral is a kind of inorganic, non-toxic, resistant to chemical corrosion, thermal stability and the size stability is good, have a glass and pearl lustre, low water absorption and oil absorption value, mechanical properties and electric properties, and has certain reinforcing effect. Wollastonite fiber is long, easy separation of product, low iron content and high whiteness, mainly used as reinforcing filler of polymer matrix composites, such as plastic, rubber, ceramics, paint, building materials, etc). In general acid, alkali resistance, resistance to chemical corrosion, low hygroscopicity was less than 4%, oil absorption, low conductivity, better insulation. Wollastonite is a kind of typical metamorphic minerals, mainly produced in contact zone of acid rock and limestone, and idocrase, garnet symbiosis. Also can be found in deep metamorphic crystalline schist, volcanic ejecta calcium and some alkaline rock. Wollastonite silicate minerals, common and needle-like wollastonite powder is widely used in coatings, plastics, rubber, ceramic, in building fire protection plate, friction materials, sealing material instead of asbestos and glass fiber.

Our country is the world's one of the main producers and exporters of wollastonite. Producing ultrafine silicon ash powder and needle silicon ash powder main enterprises of China's non-metallic mineral industry corp pear wollastonite mining quarry company, zhejiang changxing silica fume, nonmetal mineral resources in yunnan province application research institute, at the south of jiangxi wollastonite mining company, hebei huangshi building materials mining companies, etc.

Shanghai Ding Bo wollastonite crushing equipment mainly include Raymond mill, sizing mill, impact crusher and so on. The Raymond mill is mainly used for processing purposes fine powder, 200-325; Classifying grinding machine for the production of medium length to diameter ratio less than or equal to 10, 400-800 purpose of wollastonite powder.

Wollastonite in the production line is composed of coarse crushing, crushing, fine grinding, ultrafine crushing and product collection of super fine crushing of main process parameters for: feeding granularity of 325 mesh, the classifier rotating speed 2760 r/min, production of 280 kg/h, product fineness d97 = 10 um.