Usually, high-quality bauxite and high-quality lime are used as raw materials, and raw materials with appropriate composition are prepared according to a certain proportion. After sintering, the clinker with aluminate as the main component is obtained, and then it is ground into fine powder to make a fire-resistant hydraulic cementing material, which is called fire-resistant cement.

The fire resistance limit of refractory cement is not less than 65438 0580 degrees Celsius. According to different components, it can be divided into aluminate refractory cement, low calcium aluminate refractory cement, calcium magnesium aluminate cement and dolomite refractory cement.

Brief introduction of refractory cement:

Refractory cement is also called aluminate cement or high alumina cement. Aluminate cement is a kind of hydraulic cementing material, which takes bauxite and limestone as raw materials, produces clinker with calcium aluminate as the main component and alumina content of about 50% by calcination, and then grinds it.

Refractory cement forms a low melt at high temperature. When preparing refractory castable, too much addition will reduce the high temperature performance of castable, and silicon micro-powder can be used to replace part of refractory cement in general production.

In fact, the use of refractory cement is not very extensive, and it is usually used for various refractory aggregates of cement, such as corundum and calcined bauxite. It can also be made into refractory mortar or concrete and used as the lining of cement rotary kiln and other industrial kilns.