Binder + Co. Aktiengesellschaft

Omya International Ag

Bernhard Neukam

Ernst Erwin Brunnmair

Harald Tschernko

Markus Alfred Pusch

Hartmut Kremer

Julian Neubacher

Marcus Alfred Pusch

Erwin Ernst Brunnmair

Michael Wimmer

A method for heat treatment of a grain-shaped feed material uses a calcination device in order to remove carbonate or water of crystallization from the feed material. In order to continuously check the quality of the heat treatment process, the bulk density of the heat-treated material is measured continuously, wherein upon detection of a deviation of the determined bulk density from the at least one desired bulk density at least one heat treatment parameter of the heat treatment is adapted automatically or manually.

Method for heat treatment of a feed material

A method for heat treatment of a grain-shaped feed material using a calcination device to remove carbonate or water of crystallization from the feed material are provided. To continuously check the quality of the heat treatment process, the bulk density of the heat-treated material is measured continuously, wherein upon detection of a deviation of the determined bulk density from the at least one desired bulk density at least one heat treatment parameter of the heat treatment is adapted automatically or manually.

System for heat treatment of a feed material

The invention relates to a method for the expansion of sand grain-shaped raw material () in which the raw material () drops downwards through a substantially vertical heated shaft () provided with means () for forming a temperature profile (), in which a shaft flow () prevails wherein the raw material () expands as a result of heat transfer in the shaft () to form expanded granulate () and the granulate formed () is passed into a pneumatic conveying line () with a conveying flow () for further transport. In order to continuously check the quality of the expansion process, the bulk density of the expanded granulate () is measured continuously, wherein upon detecting a deviation from at least one defined bulk density, the temperature profile () in the shaft () is adapted automatically or manually and/or the feeding of raw material () into the shaft () is reduced automatically or manually.

Method for expansion of sand grain-shaped raw material

A method and system for expanding sand grain-shaped raw material drops raw material downwards through a substantially vertical heated shaft equipped for forming a temperature profile, in which a shaft flow prevails wherein raw material expands as a result of heat transfer in the shaft to form expanded granulate, and the granulate formed is passed into a pneumatic conveying line with a conveying flow for further transport. The method and system continuously measure the bulk density of the expanded granulate to continuously check the quality of the expansion process, automatically or manually adapting the temperature profile in the shaft and/or automatically or manually reducing the feeding of raw material into the shaft upon detecting a deviation from at least one defined bulk density.

Device for expansion of sand grain-shaped raw material

The invention relates to a method for the expansion of sand grain-shaped raw material () in which the raw material drops downwards through a substantially vertical heated shaft () provided with means () for heating, in which a shaft flow () prevails and to a dosing element () which can be connected to a substantially vertical shaft () and a conveying line (). In order to prevent the pressure fluctuations coming from the conveying line () in the area of the shaft (), a dosing element () is attached between the shaft and the conveying () line, in which the quantity of granulate which goes over from the shaft () into the conveying line () is regulated via means for regulating so that a defined material collection of the granulate is formed as a buffer in the dosing element (), which decouples the shaft flow () from the conveying flow.

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Stattegg, Austria

Bernhard Neukam