The clay insulating brick is a kind of light refractory products containing 30%~46% alumina oxide, the main materials are chamotte or lightweight clinker and plastic clay, It is usually produced by the method of combustible material, also can adopt the chemical method and foam method to form vesicular structure.

Clay Insulating Bricks For Sale:

The volume density of commonly used lightweight clay brick produced and sold by Rongsheng  is 0.75-1.20g/cm3, the compression strength is 2.0-5.9MPa, the thermal conductivity is 0.221-0.442W/ (m.K) (1350 C). Clay insulation brick size: 240*115*90, standard brick size: 240*115*53.The content of Al2O3in clay bricks is generally more than 40%, and the content of Fe2O3 is less than 2 ~ 2.5%. The clinker in the mixture is 65 ~ 85%, and the combined clay is 35 ~ 15%.  Clay bricks appear faintly acid at high temperature, and the ability to resist alkaline slag erosion is slightly worse, but it is enhanced with the increase of Al2O3 content. The thermal stability of clay insulation bricks are better than the silica brick, magnesia brick.

The application of Clay Insulating Bricks

The clay insulating bricks have wide application, mainly used in the thermal-protective coating material of various industrial kiln, which are not contact with the melt and without erosive gas, the operating temperature is 1200~1400℃. It is mainly used in thermal boiler, glass kiln, cement kiln, chemical fertilizer gas-making furnace, blast furnace, hot blast furnace, coking furnace, electric furnace, casting and casting steel brick, etc.

Clay insulating bricks can also be used as heat surface of refractory material or other refractory material for insulation, used for melting surface, ignition furnace, flue, refining device, heating device, regeneration device, gas stoves and pipes, soaking furnace, annealing furnace, reaction chamber and other industrial equipment.

It can be concluded as following:

1. Furnaces of metallurgy industry, heat treatment furnace
2. Furnaces of chemical industry and construction industry.
3. Furnace of incineration of garbage, recirculating fluidized bed furnace

The Characteristics of Clay Insulating Bricks

Insulating refractory is a kind of refractory material with high porosity, low volume density and low thermal conductivity. The thermal insulation refractory is also called lightweight refractory, which includes insulating refractory products, refractory fiber and refractory fiber products.

The characteristics of insulating refractory material is of high porosity, usually 40%~85%;　The low volume density is lower than 1.5g/cm3; Thermal conductivity is low, generally less than 1.0W (m.K). As the insulation material of industrial kiln, it can reduce heat loss, save energy, and reduce the quality of thermal equipment. Thermal insulation refractories have poor mechanical strength, wear resistance and slag resistance, which are not suitable for the parts of bearing structure and direct contact slag, burden and molten metal.

The manufacture of Clay Insulating Bricks

Zhengzhou Rongsheng Kiln Refractory Material Co., Ltd is specialized in producing and selling refractory material for many years, we have technical team with colorful experience and excellent production team, we provide technical supporting and kiln construction service, if you have demand for clay insulating bricks, welcome to contact with we RS company.

Physicochemical Indexes of Clay Insulating Brick