PRODUCTION PROCESS OF CEMENT

摘要

PROBLEM TO BE SOLVED: To provide a cement production process using waste plastics as at least a part of a fuel for a calcination furnace, by which a cement raw material can stably be calcined even when the addition amount of such waste plastics to a fuel stock of the fuel is increased and also, cement production can simply be performed without requiring any large-scale equipment. SOLUTION: This cement production process comprises directly charging waste plastic fragments whose average volume is adjusted to <=1 cm3 into a secondary air duct of cement production equipment.