- Time:Jun 21, 2023
Rotary kiln in cement production is a kind of equipment that uses high temperature, high pressure, corrosive gases and substances in harsh environments, in order to ensure its normal operation and production efficiency, a large number of refractory bricks need to be laid inside. The following is the main role of cement kiln refractory brick:
1, fire insulation: cement rotary kiln operating temperature is generally between 1400 ° C to 1600 ° C, if there is not enough insulation measures, will release a lot of heat, resulting in equipment damage, production stagnation and other problems. Refractory bricks can play a good role in heat insulation, limiting the high temperature in the kiln and avoiding affecting the outside and surrounding environment of the equipment.
2, corrosion resistance: the production process of cement rotary kiln will involve a variety of chemical reactions, if the material can not withstand the erosion brought by these reactions, easy to cause the peeling and wear of refractory materials, thereby shortening its life. Firebrick has good corrosion resistance, which can resist the corrosion of acid and alkali and other corrosive media, and extend the service life.
3, load-bearing support: cement rotary kiln bearing a large number of materials and materials, while the need to withstand greater mechanical pressure and impact. As the internal supporting material, the firebrick can share the external force of the kiln to ensure the stability and safety performance of the equipment.
4, other applications: In different areas of the cement rotary kiln, it is necessary to lay different types and different shapes of refractory bricks to meet different process needs. For example, high aluminum refractory brick and synthetic alumina refractory brick need to be used at the head of the kiln; In the middle, alkaline firebrick and proton-type ceramic fiber should be used. At the end of the kiln, firebricks with special materials such as low iron, low silicon and high magnesium need to be used.
In short, the refractory brick in the cement rotary kiln plays a key role in ensuring the normal operation and production efficiency of the equipment. Different types and shapes of firebricks have different properties and application ranges, and need to be selected and applied according to specific circumstances.
