Thyssenkrupp Industrial Solutions Ag

Thyssenkrupp Polysius Aktiengesellschaft

Jürgen Denker

Karl Lampe

Christoph Beyer

Richard Erpelding

Peter Fleuter

Yilmaz Karakus

Meike Dietrich

Guido Scholz

The invention relates to a multi-level furnace for thermal treatment of the material flow which has at least two process chambers arranged one above another, each providing at least two level floors, and is equipped with one or more transfer devices for transferring the treated material flow from an upper process chamber to a lower process chamber. In order to separate the two process chambers in terms of gas flow, the transfer device has means for forming a material column in the transition region between the upper and the lower process spaces, wherein said means for forming a material column comprise at least one conveying unit or at least one chute, and the at least one conveying unit or at least one chute also forms a material removal device for the upper process chamber and/or a material input device for the lower process chamber.

Multi-level furnace and method for thermal treatment of a material flow

A device for drying and torrefaction of at least one carbon-containing material flow in a multiple-hearth furnace includes a drying zone, a torrefaction zone, a heat exchanger for heating the drying gas flow, the discharge point of the drying zone being connected via the heat exchanger to the infeed point of the drying zone; and a combustion assembly, wherein the discharge point of the torrefaction zone is connected via the combustion assembly and the heat exchanger to the infeed point of the torrefaction zone, wherein a torrefaction gas flow discharged via the discharge point of the torrefaction zone is combusted in the combustion assembly and the resulting exhaust gas is used in the heat exchanger to heat the drying gas flow and is fed to the torrefaction zone, wherein the drying zone and the torrefaction zone comprise two separate gas circulations.

Device and method for the drying and torrefaction of at least one carbon-containing material flow in a multiple hearth furnace

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Beckum, Germany

Jürgen Denker