Krupp Polysius Ag

Polysius Ag

Frank Schaberg

Horst Ritzmann

Wolfgang Rother

Wolf Goldmann

Jurgen Wurr

Manfred J Durr

Georg Unland

Wilfried Kreft

Peter Tiggesbaumker

Karl Josef Menzel

Gunter Driemeier

Georg Schepers

Karl Krutzner

Gerhard Balzau

Klaus Bauer

Heinrich Klockenbusch

Horst Kretzer

Heinrich Weber

Rudolf Weber

Manfred Steinmann

Gunter Kompa

Rudiger Beyer

Heribert Martens

Herbert Schmelter

Erich Schnieder

Peter Pohlmann

Helmut Kucharski

The invention relates to apparatus for the introduction of reagents in powder form into a melting pan, in which the lance is arranged eccentrically with respect to the pan axis and the outlet nozzles are directed into the larger region of the pan enclosing the pan axis. Such apparatus is distinguished by optimum mixing in of the added reagents.

Apparatus for the introduction of reagents in powder form into a melting

The heat treatment of fine-grained material wherein two quantities of fuel are delivered to a precalcination zone at two different levels. The first quantity of fuel is delivered at a lower level nearer the combustion zone and the oxygen content of the gases passing through this region of the precalcination zone are such that in this region a substoichiometric combustion takes place and a CO content between 0.05% and 1% is established. As a result a reducing decomposition of the NO.sub.x content of the exhaust gases from the combustion zone takes place.

Method and apparatus for the heat treatment of fine-grained material

The invention relates to a continuous mixing silo and a method of operating it for the mixing of fine-grained material. The silo has a base provided with a plurality of zones which are supplied with aerating air in chronological sequence. Individual zones of the base are supplied with additional air in a pulse-like manner at specific intervals of time to achieve intensive aeration and mixing of the material. The additional air is supplied from a storage unit for a shorter period than the aerating air. Air taken from the storage unit is replenished during the time interval between pulses.

Continuous mixing silo and method of operation

A process for producing cement wherein preheated, partially calcined powder-form raw material is finally calcined in a fluidized bed and is discharged to a cooler through which a cooling stream of air passes. A part of the cooling air passes into the fluidized bed from below and another part of the cooling air, together with the partially calcined material, passes into the fluidized bed from the side. The rates of material flow to and from the fluidized bed is regulated to maintain a substantially uniform intersticial ratio between the upper and lower regions of the fluidized bed.

Process for the production of cement in a fluidized bed

Growing community of inventors

Oelde, Germany

Frank Schaberg