Adiabatic refractory direction of development of pollution-free ceramic fiber

Ceramic fiber is widely used in various types of thermal furnace insulation high temperature materials, because of its bulk density much lower than other refractory materials, and thus little heat storage, heat insulation effect is obvious, as the lining material can greatly reduce thermal furnaceenergy loss, thermal furnace has brought a revolution in energy efficiency. On the other hand the techniques and methods of its application the thermal kilns and stoves also brought a revolution.

    1 Use the status quo

    The ceramic fiber first appeared in 1941, Babu Wilcox with natural kaolin, the electric arc furnace to melt injection into fibers. The late 1940s, the production of aluminum silicate series fiber of the two companies in the United States, and for the first time used in the aviation industry; 1960s, the United States developed a variety of ceramic fiber products for industrial furnace wall lining. 1970s, ceramic fiber production of the use of rapid promotion of the application of technology in the 1980s, but the main temperature range below 1000 ℃, the application of the technology is relatively backward. In the 1990s, with the popularization and application of containing of zirconium fiber and polycrystalline alumina fiber, temperature up to 1000 ° C to 1400 ° C, but are subject to product quality defects and backward in technology, applications and application the limitations. Such as: polycrystalline alumina fibers can not be made ​​into a fiber blanket, Product Specification Sheet

    Bulk cotton fiber block, although the use of a temperature increase, but the strength is poor, limiting the scope of use, but also shorten the service life.

    Zirconium-containing fiber is produced by melting method uses a wide range of low cost aluminum silicate fiber, can be used in large quantities as masonry various thermal furnace hot face fiber lining, the quality of the products in this area and application development is relatively backward, abroad chromium fibers, temperature than the zirconium-containing fibers higher there are no reports in this regard.