Refractory linings in billet re-heating furnaces in hot rolling, sealed quench furnaces in heat treatment and most furnaces with refractory bricks face the following problems:
. Thermal shock cracking
. Energy leaks through thermal shock cracks in refractory
. Excessive furnace shell temperature heating
. Non-uniform heating in different zones of furnace
. Low refractory lining life
. High fuel consumption due to energy leaks
ESPON refractory coatings can withstand up to 1800 deg. C.and prevent the above problems.
Hence, life of the refractory is increased.
Due to high emissivity of ESPON refractory coating, heat is reflected back into the furnace, thereby reducing fuel consumption.Furnace retains high temperature for a long period even after shut down. This reduces start-up time when furnace is switched on next day. Heat uniformity is facilitated and maintained by the reflective ESPON coating. Furnace outer shell temperature does not geat excessively heated up.Due to its ability to withstand high temperature, ESPON refractory coatings are also used in Acid Regeneration Plants to prevent slag adhesion.
ESPON Refractory Coatings lead to reduced fuel consumption and increased refractory lining life.