Risk and failure aspects in twin screw extrusion

There is a multitude of norms and general guidelines relevant to machine safety. Two possibilities are discussed which allow a systematic analysis of hazards concerning processes, process steps and machines down to their components, and which allow appropriate measures to be defined. It concerns the so-called FMEA (Fehler-Mo¨glichkeits- und Einfluss-Analyse = Fault Occurrence and Influence Analysis) and classical safety analysis. Using some examples from the field of extrusion technology, the application of safety analysis is demonstrated and the measures are described that have to be realized to guarantee protection for people.

Keywords:

• Extrusion
• Twin Screw Extruder
• Food- And Feed-EXTRUSION
• Safety Analysis