Method and apparatus for the purification of oil-containing and water-containing roll scale sludge

Abstract

In a method for the cleaning of oil- and water-containing roll scale sludge, the roll scale sludge is introduced to a heatable treatment region 10 for a first drying step. In addition to the first drying step, a second drying step is provided for with which the roll scale sludge is subjected to a vacuum drying 14, 15. For this reason, the purification of the oil- and water-containing roll scale sludge is improved without additional auxiliary materials using only pure thermal energy in an effective manner which is applicable to large-scale commercial applications.

Dependencies are inferred from the claim text.