Application of Ceramic Fiber in Energy Saving and Environmental Protection

Application as high temperature insulation material

Ceramic Fiber is a high-efficiency energy-saving thermal insulation material. The material itself has the characteristics of general fiber, and at the same time it has high temperature resistance, corrosion resistance and oxidation resistance that ordinary fiber does not have. More importantly, it avoids the brittleness of general refractory materials. To a certain extent, it has replaced traditional heavy refractory bricks as industrial kiln wall lining materials. First, the thickness of the kiln is reduced by 1/2, the quality is reduced by 60-80%, and the steel used for building the kiln is saved by 30-50%, which not only saves the masonry cost of the kiln, but also It also greatly reduces the load on the steel structure of the kiln, thereby prolonging the service life of the furnace body; secondly, using fiber materials with light weight, low thermal conductivity and low heat capacity as the kiln wall can reduce the surface temperature of the kiln wall , To speed up the heating rate of the furnace, thereby reducing the energy consumption in the furnace temperature operation control, which has a very significant energy-saving effect on the starting and stopping of the heating furnace.

Therefore, the biggest advantage of industrial kilns built with ceramic fiber as the kiln wall is energy saving.

Ceramic Fiber

Application as filter material

Compared with the traditional granular filter material, the fibrous filter material has larger interface adsorption and can intercept suspended solids; compared with the foam ceramic filter, it has a smaller pore size and higher filtration accuracy; compared with the organic fiber filter, it has Better thermal stability, chemical stability and thermal shock resistance. Therefore, ceramic fiber materials have been widely used in air purification, high temperature flue gas filtration, diesel exhaust microfiltration trapping, chemical filtration, metal liquid filtration, etc., due to their high strength, good thermal shock resistance, and chemical corrosion resistance. . Ceramic fiber filters can be divided into ceramic fiber composite membrane materials, ceramic fiber paper, ceramic inner nets, and ceramic fiber filters. The manufacturing process and application range of each material are different, which to a great extent meets the requirements of filtration standards for various production scenarios. Ceramic fiber filtration technology can reduce atmospheric environmental pollution and human harmful factors in air purification, high-temperature flue gas filtration, and diesel exhaust microfiltration capture. It can reduce the waste rate in metal liquid filtration and chemical filtration, and reduce the generation of ineffective waste. Both energy conservation and environmental protection play an important role.

Application as sound absorption and sound insulation material

Ceramic Fiber Products are porous aggregates of microfibers with excellent sound absorption and sound insulation properties. First of all, because the fiber product itself has many interconnected tiny pores between the fibers, when the sound wave is incident on the fiber material and propagates inside it, the viscous resistance of the air in the pores and the frictional resistance between the fibers will affect A part of the sound energy is converted into heat energy to form a loss. Secondly, when the air in the pore is compressed, the temperature of the surrounding environment increases, and when it is sparse, the temperature decreases, and the heat conduction of the fiber will lose part of the sound energy. Ceramic fiber simulation products have been made into the product form of cotton board as sound-absorbing material. Except for the low sound absorption coefficient of ultra-fine glass wool board and slag wool board, the average sound absorption coefficient of other ceramic fiber cotton boards is higher than 0.80, it is a high sound-absorbing material, which has been widely used in industry, construction, transportation and other fields. It is a sound-absorbing product worth promoting in terms of isolating noise pollution.

Although Ceramic Fiber Cloth plays an important role in high temperature industry and other fields, there is no perfect thing in the world, and its disadvantages cannot be ignored. The most prominent is that ceramic fiber materials are relatively soft and require facing materials. During construction and installation It is easy to cause dust, irritate the skin, and is also inhalable, which will cause certain harm to the ambient air and human body during the manufacturing process. In this respect, it is necessary to continuously improve the performance of the product without changing the superiority of the ceramic fiber itself in practice. "Remove the dross and take the essence" is the purpose of maintaining the vitality of sustainable development of everything.