Hex metal becomes impractical to use when the section of plant being protected is of small diameter, the free rolling capabilities of flex metal allows plant as small as 150mm to lined. Typical applications include air distributors, cyclone diplegs, fan cases and all plants where the practicality of free rolling material is beneficial to maintenance activities.
Normally, we should protect the Air Duct from Mill to Cyclone silo, input pipe of all filter and air converged box. The inner surface of cement grinds mill classifier, the housing of cycle fan. In all, the pipe which Cement powder go through need to be protected scientifically.