Maschinenfabrik Andritz Actiengesellschaft

Alfred Weinmann

Peter Scheucher

Dag Bergloff

Georg Ickinger

Walter Schinninger

Karl Jirenec

Hubert Hermann

Wolfgang Leutzendorff

Roland Konstantiniuk

Josef Steinegger

Leopold Sidla

Ernst Markytan

A process and apparatus for continuously purifying gases by removing entrained burdening substances therefrom, wherein the gas is loaded with entrained substances is passed substantially radially through adsorbing material arranged about an axis of rotation as an adsorber bed, the substances being retained on the adsorbing materials in the course of their rotational movement about the axis of rotation, and in the course of further rotational movement the load of retained substances is desorbed, optionally after inertization, by flushing with a fluid medium, e.g., hot gases or steam, and the adsorbing material may then be cooled and/or dried. Rotational movement is preferably done intermittently, and the feed stream to and the drain stream from the adsorbing material each are conducted through a confined space extending at least in one direction substantially parallelly to the axis of rotation or to the adsorber bed, the confined space being fed and drained axially. The direction of the feed stream is at least essentially opposite to that of the drain stream in relation to the adsorber bed.

Rotatable adsorber apparatus for continuously purifying gases

The invention relates to a process and a plant for separating low density material, in particular plastics, in particular with a density of less than 1, from substrate mixtures, preferably from waste material fractions or presorted garbage fractions optionally containing essential portions of plastics or optionally presorted to paper/plastics fractions, wherein a gravity separation, in particular a sink-float separation, is carried out and the low density material phase, in particular polyolefin plastics, is withdrawn and optionally further processed as a separate fraction after drying. According to the invention, the separating effect and the cleaning of the low density material phase withdrawn are increased by carrying out at least one centrifugal separation, preferably in a hydrocyclone, in addition to at least one gravity separation, preferably in a sink-float basin.

Process and a plant for separating low density material from substrate

This invention relates to an improvement in a drying installation for treating a web of material including a drying hood having flow channels therein and heat sources and blowers for the circulation of a drying medium which is passed through apertures to said web and drawn off again through exhaust channels, the improvement comprising a plurality of profiled tube means mounted adjacent said web, the distances between said tube means constituting diffuser-like gaps serving as exhaust channels, and a plurality of apertures in said tube means directed toward said web, said apertures being in a triangular configuration and distributed over said tube means at a constant distance.

Drying installation for treating webs of material

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Graz, Austria

Alfred Weinmann