Furnace lining refractory material selection

Furnace lining refractory material selection The main performance of the furnace is mainly determined by the technical and economic performance of the furnace lining refractory material selection refractory insulation material, which directly affects the investment cost of the furnace, work performance, thermal efficiency, energy consumption costs of operation, etc.. Select the general principles of refractory insulation materials: 1, the performance of the furnace and thermal characteristics. Such as intermittent work of the kiln should be selected for low heat capacity of the material. 2, the safe use of the material temperature, thermal conductivity system, high temperature strength, chemical stability. 3, the life of the use. 4, investment costs and maintenance costs of operation. In general, heavy refractory materials focus on a certain technical performance indicators, such as high-temperature stability, chemical stability, etc.; resistant to light insulation materials pay more attention to the input and operation of the comprehensive technical and economic indicators. Selection of lightweight insulation materials, is generally the thermal conductivity of insulation materials (λ) and the cost of each unit volume of insulation materials (Ρ) to determine, "λΡ" the product value of the smaller the better. The smaller the value of thermal conductivity, the better the insulation effect of the insulation material, the lower the energy cost of operation. Low cost per unit volume of insulation material means low investment cost and good economic effect of investment. You can use the coordinate graphical method of graph selection, the horizontal coordinate for the working temperature, the vertical coordinate for (λΡ) good product, with the safe use of material temperature interception of the curve of each material, select the technical and economic performance of good materials.