Foshan gaoteng automation equipment co., LTD., which is engaged in mould furnace, mould heating furnace and energy-saving mould furnace, introduces which refractory pouring material is suitable for the heating furnace.

Which kind of refractory castable for heating furnace is more appropriate, mainly according to the working conditions and temperature of each part of the choice, such as clay castable, high aluminum castable, steel fiber castable, refractory plastic, etc., this is not the typical types of shaped refractory lining lining. Firebrick lining can also be used, in which aluminum silicate firebrick is used more, such as clay brick, high aluminum brick, lightweight clay insulation brick, etc. With the development of unshaped refractory, the precast castable is often used for hoisting on the furnace roof. The material used is high aluminum castable or high aluminum low cement castable.

Above is about the heating furnace commonly used three kinds of refractory materials: refractory castable, refractory brick and castable prefabricated parts, which material should be selected more appropriate, need to pass the heating furnace parts of the use conditions and temperature analysis, with high quality and low price as the material standard.

Working temperature about 1400 ℃, the heating furnace for continuous or annular furnace, the temperature is constant, the use of the various parts mainly divided into low temperature zone, temperate zone and thermal belt, respectively called preheating zone, tropical and tropical, working temperature: 800 ~ 900 ℃, 1150-1200 ℃, 1200-1300 ℃. The main cause of the lining damage is the large thermal shock stress caused by the intermittent operation and the shutdown of the furnace, which leads to the lining material deformation and thermal spalling. The damage to the bottom of the furnace and the bottom of the furnace wall is mainly caused by the chemical reaction between the molten iron oxide slag and the refractory brick. Therefore, different refractory materials should be selected according to the conditions of different parts.