Fremgangsmåde og indretning til varmebehandling indbefattende fremgangsmåde og indretning til udskillelse eller sortering af en ladning.

摘要

The device according to the invention for separating or classifying material to be fed into at least two different grain fractions comprises a screen device, which is formed by rotatable elements, particularly a roller table screen, wherein at least one finer grain fraction passes between the rotatable elements and means are provided for cooling the rotatable elements.