METHOD FOR MANUFACTURING REGENERATED GYPSUM AND REGENERATED GYPSUM

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a regenerated gypsum to produce the regenerated gypsum having a high content of II type anhydrous gypsum by securely dehydrating and firing gypsum waste materials.;SOLUTION: In the method for manufacturing the regenerated gypsum from the gypsum waste material S using a rotary kiln 1, the regenerated gypsum is manufactured by heating the gypsum waste material S supplied into a rotary furnace 2, to be dehydrated and fired, while sucking a gas G in the rotary furnace 2 which constitutes the rotary kiln 1 from the inside of the rotary furnace 2 to the outside of the rotary furnace 2 by using an induction fan 5.;COPYRIGHT: (C)2009,JPO&INPIT