Polysius Ag

Kurt Henning

Jurgen Wurr

Otto Heinemann

Heinz-Herbert Schmits

Horst Ritzmann

Wolfgang Rother

Wolf Goldmann

Werner Schossler

Hans Mollenkopf

Georg Schepers

Paul Weber

Horst Bonisch

Karl Krutzner, Jr

Fine-grained material such as raw ground cement adapted to be fired in a rotary tube furnace is introduced to a vertical preheater and falls through a heating zone located at a level below the level at which the material enters the preheater. A stream of air enters the preheater at a level below the heating zone and passes upwardly at sufficient velocity to entrain the material that has passed through the heating zone, thereby causing such material to pass again through the heating zone. From the preheater the material is delivered to the furnace for final firing.

Methods and apparatus for the heat treatment of fine-grained materials

A bearing ring is loosely mounted on peripherally spaced support plates fixed to a rotary drum. At least one box loosely holding a graphite plate is open on the side facing the inner surface of the bearing ring and is disengageably secured in the space between two adjacent support plates.

Apparatus for lubricating bearing rings loosely mounted on a rotary drum

This invention relates to a rotary drum having a bearing ring mounted on the drum casing and movable relative thereto in the peripheral direction, said ring being supported by support plates affixed to the drum casing at constant intervals.

Bearing ring mounting for rotary drum

Fine-grained material such as raw ground cement adapted to be fired in a rotary tube furnace is introduced to a vertical perheater and falls through a heating zone located at a level below the level at which the material enters the preheater. A stream of air enters the preheater at a level below the heating zone and passes upwardly at sufficient velocity to entrain the material that has passed through the heating zone, thereby causing such material to pass again through the heating zone. From the preheater the material is delivered to the furnace for final firing.

Growing community of inventors

Neubeckum, Germany

Kurt Henning