To save energy and reduce consumption, the requirements of high-performance insulation materials are increasing, the quality requirements for insulation of applications in the steel industry, for example steel ladles, tundishes or vacuum ladles for steel treatment are very high.
Parallel to this development, also the requirement for utilizable volume is increasing. The brick linings are thinner. Therefore, it is necessary to insulate for example the steel ladles very efficient.
Previously, the thermal insulation materials used in steel industry mainly include insulating brick, ceramic fiber, calcium silicate and other products. the thermal insulation effect of such materials is acceptable at low temperature., however, with the increase of service temperature, the thermal conductivity will rise sharply, and the thermal insulation performance will decrease rapidly. By using the microporous insulation panels the below benefits can be got for steel ladles:
Reduce shell temperature
The high heat flux of the lining system causes the too high temperature of the ladle shell, which damage the strength of the cladding and the creep resistance. Helps improve the life of the ladle shell.
low shrinkage – reduce the gaps and risks of cracking.
Reduces energy consumption by low superheated tapping
Bake energy saving
Greatly improve the inner wall temperature of the ladle, reduce the on-line baking time of the ladle, and save energy.
Good for steel quality
Reduce the tapping temperature and achieve low superheat pouring.
Improve the service life of the refractory material
Reducing the temperature difference between the hot and cold surfaces of the ladle refractory material, improve the service life of the refractory material.
Increase the effective capacity of the ladle
Smooth pouring, speed up the process: long strip casting time, high heat preservation requirements; shortening LF furnace heating time, good to organize production, speed up production speed, increase output.