Process of granulating converter steel slag by air jetting

摘要

Production of granules made from converter slag comprises directing a strong air stream against the beam of converter slag. The air stream to the slag stream is adjusted so that the granules are divided into iron-rich and into iron-deficient granules which contain small amounts of free lime corresponding to the requirement of additive in the production of concrete or mortar. Preferred Features: The free lime content is adjusted to less than 0.4 wt.%. The slag has a free lime content of 2-5 wt.% before blasting.