Buhler Ag

Urs Wuest

Willi Wetzel

Andreas Krische

Di Zhuang

A single screw extruder (E) for the extrusion of food or feed, comprising in the direction of flow of a product to be extruded: i) a processing section (); ii) a bypass outlet (B); iii) a valve plate (V); iv) a die plate (D); and iv) a cutter (). The flow of product can be directed through the valve plate, under normal operating conditions of the extruder (E), and through the bypass outlet (B), during start-up of the extruder (E) or for maintenance purposes, downstream of the valve plate (V). The valve plate (V) is arranged on or in a mounting plate (M). The cutter () and the mounting plate (M) are provided with interacting guiding mechanism that prevent rotation of the cutter (), vis-à-vis the mounting plate (M); and the cutter () and the mounting plate (M) are mechanically fastened to each other with rotational locking mechanism.

Extruder for the extrusion of food or feed

This invention relates to a method and a device for thermally treating flour, especially middlings, for hygienic purposes. The device includes modules which are a first, heatable batch mixer () with a pre-mounted depot (). The batch mixer is connected to a drier/cooler () via a look-like flap system (). A second batch mixer () includes a device () for adding additives and a discharge device is mounted behind an additional flap system () that is mounted behind the drier/cooler ().

Method of thermally treating flour for hygienic purposes

This invention relates to a method and a device for thermally treating flour, especially middlings, for hygienic purposes. The device includes modules which are a first, heatable batch mixer () with a pre-mounted depot (). The batch mixer is connected to a drier/cooler () via a lock-like flap system (). A second batch mixer () includes a device () for adding additives and a discharge device is mounted behind an additional flap system () that is mounted behind the drier/cooler ().

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Kronbuehl, Switzerland

Urs Wuest