METHOD AND PLANT FOR MANUFACTURING MINERALIZED PORTLAND CEMENT CLINKER

摘要

PCT No. PCT/DK95/00075 Sec. 371 Date Nov. 1, 1996 Sec. 102(e) Date Nov. 1, 1996 PCT Filed Feb. 21, 1995 PCT Pub. No. WO95/23773 PCT Pub. Date Sep. 8, 1995The invention relates to a method and a plant for manufacturing mineralized portland cement clinker. The method and plant provides for preheating, calcining, burning and finally cooling the clinker. The mineralizer may e.g. be gypsum, fluorine, or a waste product containing these or other mineralizers. The mineralizer is added to the feedstock after the feedstock has been fed to the process, preferably after the cyclone which handles the feed to the calciner, i.e. the last cyclone in the preheater, or the lowermost preheater stage in a plant which does not incorporate a calciner.