How Stone Boxes Increase SHC & SPC in Cement Plants
Detailed process explanation of pre-heater hot spots, cyclone wear, false air, SHC increase and ID fan power rise. 1. What is a stone box in a cement plant pre-heater ? When refractory inside a pre-heater cyclone or duct starts failing, the steel shell gradually becomes exposed to hot process gases. Under normal conditions, the refractory…