Clay heat insulation refractory bricks

Clay heat insulation refractory bricks
Clay insulation and refractory brick Al2O3 content is generally more than 40%, Fe2O3 content of less than 2.0 to 2.5%. Ingredients in the clinker for the 65 ~ 85%, combined with 35 ~ 15% clay. The crushed clay and ground clinker are milled and then mixed with the clinker to prepare semi-dry mud, which is sintered at about 1400 ° C and has good performance. Clay tiles are weakly acidic at high temperatures.
Lightweight clay brick insulation brick high porosity, low bulk density, low thermal conductivity of refractories, insulation refractories, also known as light refractories, which include insulation refractory products, refractory fiber and refractory fiber products.
Insulation refractory material is characterized by high porosity, generally 40% -85%; volume density lower than 1.5g / cm3; thermal conductivity is low, generally less than 1.0W (mK) .It acts industrial furnace insulation Material, can reduce the furnace heat loss, save energy, and reduce the quality of thermal equipment. Insulation refractory mechanical strength, wear resistance and slag resistance is poor, not suitable for the kiln bearing structure and direct contact with slag, charge, molten metal and other pars.