'MANUFACTURE OF FUSED DOLOMITE FROM RAW OR CALCINED DOLOMITE OF HIMALAYAN ORIGIN INCLUDING BHUTAN AND INDIAN ORIGIN AND ARTICLES MADE THEREFROM'

摘要

This invention relates to a process for the manufacture of fused dolomite by electrofusion of raw or calcined dolomite of an optimum composition as given in the specification in a fusion pot in presence of electrodes partially filled with coke breeze and/or carbon pieces, which is connected by cable (s) to 1600 KVA transformer equipped with suitable lifting devices and a number of cycles of current is passed, and from the second cycle onwards. semi - fused dolomite is fed first in the fusion pot and then raw dolomite is added at a required rate through a vibro feeder. After the culmination of the fusion process electrodes are lifted, fusion pot with contents are cooled, sorted and packed in moisture-proof bags for storage. The stored product may be made into refractory bricks and shapes with the help of a suitable binder, followed by compaction, firing and storage.