Analysis of methods for processing oily mill scale and oily sludge for iron and steel production

Abstract

The paper considers the main methods of processing oily mill scale and oily sludge for iron and steel production. At present, the issue of processing such waste is highly relevant for iron and steel works. The iron content allows regards them as a valuable technogenic raw material. But direct processing is complicated by the high oil content. The authors describe thermal processing variants with and without regeneration of oil products, physicochemical methods and briquetting. A desludging method with the help of Rotor Impulse Machines (RIM) is described in sufficient detail; its main advantages are presented. A very promising direction in the development of new technologies for the processing of oily sludge is the combination of physicochemical, mechanical, magnetic and other methods of desludging with the regeneration of oils.