Perlite: a natural acidic glassy lava non-metallic minerals, including perlite, pitchstone and obsidian, only three different crystalline water content. Because of its volume at 1000 ~ 1300 ℃ rapidly expanding high-temperature condition of 4 to 30 times, it is referred to as expanded perlite. General requirements for expansion in multiples of> 7 to 10 times (obsidian> 3 times available), about 70% silica. Both open pit mining. No dressing, just crushing, screening can. The main purpose may be used as filters, catalysts, molecular sieves and carrier rubber, fertilizers, pesticides. Widely used in construction, metallurgy, petroleum, machinery, light industry, hydropower, casting, medicine, food, agriculture, forestry and other horticultural sectors. Often warm thermal conductivity 0.0245 ~ 0.048W / (m · K), high thermal conductivity of 0.058 ~ 0.175W / (m · K), low thermal conductivity of 0.028 ~ 0.038W / (m · K), the maximum use temperature of 800 ℃. Used as a highly efficient insulation, cold filler material. Soilless cultivation agriculture and horticulture, soil, water and fertilizer and so on. Expanded perlite is used widely in an inorganic mineral material, involving almost all areas. For example: ① oxygen machine, cold storage, transportation of liquid oxygen liquid nitrogen as filling insulation material. ② for wine, oil, pharmaceuticals, food, water filters and other products. ③ used in rubber, paint, coatings, plastics, and other filling materials and vasodilators. ④ for sensitizer. ⑤ used to adsorb the oil slick. ⑥ used in agriculture, horticulture, soil, water and fertilizer. ⑦ for profiles with a variety of adhesive tie made of various specifications and performance. ⑧ greater amount of insulation used in industrial furnaces and building on the roof and walls. Note: The application of expanded perlite manufactures except so some perlite insulation properties, as a basic, adding different binders can be made to adapt to the different needs of the finished product. The factory provides a variety of uses zeolite powder, bentonite, lithium bentonite, sodium bentonite, perlite gardening, air separation plant with perlite, do washing powder with a pearlescent sand, perlite filter aids, perlite insulation board, construction with glass beads, perlite Cleaner, opening perlite, obturator perlite, expanded perlite and other non-metallic mineral products, according to customer request production of various indicators of perlite products.