Polysius Ag

Joachim Kudras

Norbert Patzelt

Wolfgang Schwab

Uwe Schuh

Heinz Tölke

Thomas Schmitz

Thomas Schmits

Tölke Heinz

The invention relates to a shaft preheater for preheating material in lump form with at least one shaft for receiving the material, a bridge disposed in the shaft for delivering hot gases which flow through the material from the bottom upwards, and a device for filling the shaft with the material such that the shaft is charged centrally thereby developing a filling cone. The bridge is disposed at an inclination corresponding to the filling cone in order to guarantee an even flow through the fill. The device for filling the shaft comprises a vertically adjustable feed chute.

Shaft preheater

A shaft preheater to achieve an improved adaptation of layer height to particle size spectrum of material to be preheated. The shaft preheater includes a plurality of shafts for receiving lumpy material, an arrangement for filling the individual shafts with the lumpy material to be preheated and means for limiting the layer height in the shafts. The means for limiting the layer height include a needle valve and have an arrangement for coarse adjustment and an arrangement for fine adjustments.

Shaft pre-heater

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Kamen, Germany

Joachim Kudras