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Ceramic fiber rope refractory insulation materials and the prospects of the simple analysis

Insulating refractory ceramic fiber rope is known widely used in various thermal furnace refractory insulation material, because of its density is much lower than other refractories, therefore small heat storage, heat insulation effect is obvious, as the lining material can be greatly reduced thermal furnace energy consumption, energy efficiency has brought a revolution to thermal furnace. On the other hand it's applied technology and methods of thermal furnace masonry is also brought about a revolution.

1) Ceramic fiber insulation refractories Situation
Ceramic fiber first appeared in 1941, the United States Babu, Wilcox Company with natural kaolin, with electric arc furnace melt blown into fibers. The late 1940s, American companies produce aluminum silicate fiber series, and for the first time used in the aerospace industry; in the 1960s, the United States developed a variety of ceramic fiber products, and for industrial furnace wall lining. In the 1970s, China began producing ceramic fiber in use, the application of technology has rapidly expanded in the 1980s, but the main temperature range below 1000 ℃, application technology is relatively simple backward.

In the 20th century, 90 years later, with the popularization and application of zirconium-containing fibers and polycrystalline alumina fiber, temperature increased to 1000 ℃ ~ 1400 ℃, but because of the backwardness, applications and application mode product quality defects and application of technology have been limitations. Such as polycrystalline alumina fibers can not be made into fiber blanket, single product specifications to loose cotton fiber block-based, although the temperature is increased, but the strength is poor, limiting the scope of use, but also shorten the service life.

Zirconium is a versatile fiber with a melting method of production, low-cost aluminum silicate fiber, can be widely used as masonry various thermal furnace hot face full fiber lining, currently in this area the quality of domestic products and application development is relatively backward, now appeared abroad chromium fiber, use a higher temperature than zirconium-containing fiber, there are no reports in this regard.

B) the prospects for malpractice and insulating refractory ceramic fiber rope Analysis
Although the ceramic fiber plays an important role in the field of high-temperature industrial insulating refractory, but there are a lot of production defects, in particular, it has inhalable, the environment and the human body has certain hazards, some foreign enterprises to strengthen an amorphous limit the use of ceramic fibers. Currently, a biological solubility amorphous refractory ceramic fiber insulation market, this super fiber (siO2-CaO-MgO based ceramic fiber) is a pollution-free environment-friendly materials. Ceramic fiber products in the future production trend is towards clean, refined and versatile direction, in particular the use of new technology, new materials, production of high value-added, high-tech functional fine ceramic fiber, its production probability will be growing, Zhejiang team to optimize thermal insulation refractory great significance.