The Application of Ceramic Fiber Module in Industrial Furnace

Ceramic fiber is a fiber high temperature material, in the 20th century, 70 years to develop a new type of industrial furnaces and other energy-saving technological transformation of energy-saving equipment. Ceramic fiber as light and efficient fire-resistant insulation material, with light weight, good insulation properties, easy construction, no lining baking and many other advantages, it is currently the most widely used industrial lining materials. Ceramic fibers have very low thermal conductivity and are used for lining to reduce furnace wall cooling, resulting in better energy savings. At the same time because of the characteristics of low thermal inertia, reheat furnace temperature control becomes more convenient, so ceramic fiber (module) as the lining is widely used in iron and steel industry furnace.1. Ceramic fiber module in the iron and steel industry applications: the traditional industrial furnace refractory lining weight, furnace waste heat serious, poor insulation, ash temperature over 100?, the furnace temperature is difficult to precisely control. In recent years, the refractory lining of industrial furnaces has been used to design the entire fiber lining. Due to the low thermal conductivity, low density and light weight of the fibers, lighter steel support structures are used in the design of kilns, which makes industrial furnaces The development of a "kiln lightweight" kiln era. Fiber storage is small, to adapt to the rapid heating and cooling mode of operation. In addition, the fiber module can be processed into different products to adapt to the shell wall of various shapes. Fiber module has good mechanical vibration and impact resistance, chemical stability is better, these advantages on the development of new kiln plays an important role.2. Ceramic fiber module heat-resistant technology trends: the main ceramic fiber substrate is Al2O3 and SiO2, ordinary ceramic fiber Al2O3 content is low, the formation of the fiber can not be separated from the mullite phase, known as: amorphous alumina ceramic Fiber, the use of temperature is about 1000?. In recent years, a crystalline alumina ceramic fiber has been developed. Al2O3 content of 72% or more, the melting point is very high, can be separated from a uniform mullite phase crystals, known as crystalline alumina ceramic fiber. Heat-resistant temperature can reach 1600?.At present, energy saving, environmental protection, to prevent global warming has become the focus of world attention, the cost of fuel will become the bottleneck of the development of iron and steel industry.