MANUFACTURE OF QUICKLIME BY SINTERING MACHINE

PURPOSE:To exceedingly reduce the unsintering and oversintering of limestone, at the time of charging coke breeze and limestone powder to the topmost layer of a pallet in a sintering machine and executing sintering, by using a multistage sieving machine and reducing the particle size from the upper layer part to the lower layer part. CONSTITUTION:A mixture of limestone powder and coke breeze is charged to the topmost layer of a pallet 1 in a Dwight-Lloyd sintering machine to form quicklime by heat in an ignition furnace. At this time, a multistage sieving machine 22 is used, and the limestone in a hopper 19 is sieved to regulate the particle size distribution in the height direction of a limestone layer in such a manner that the upper part has coarse one and the lower part has fine one. Then, coarse limestone is charged to the range having the most heat and the fine limestone to the range having small heat.