Krupp Polysius Ag

Polysius Ag

Magyar Aluminiumipari Troszt

Gerhard Butschko

Horst Ritzmann

Wolf Goldmann

Janos Steiner

Peter Tiggesbaumker

Paul Weber

Jozsef T Toth

Kalman Wenzly

Erich Lankes

Peter Wolfgang Bohm

The invention relates to a method of burning, calcining or sintering fine-grain material in which the burnt material separated from the gas flow is supplied to a residence container from which a part of the material is returned to the burning zone and the remainder of the material is supplied to the cooling zone. Such a method is distinguished by a low heat and energy requirement and by a simple construction of the apparatus and permits ideal adaptation of the burning conditions to the particular material.

Method and apparatus for burning fine-grain material

Fine-grained material is heat treated by being preheated and then is heated to its calcining or sintering temperature, following which it is again heated to such temperature and subsequently cooled. The concentration and residence time of the material during its second heating are greater than they are during its first heating, and the concentration of oxygen is greater during the first heating of the material than during its second heating.

Apparatus and method for calcining or sintering fine-grained material

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Hamm, Germany

Gerhard Butschko