| Abstract: | Methods for Processing Animal Raw Fats with Special Consideration of Centrifugal Clarifying and Separating Processes Modern methods for processing animal raw fats are characterized by extensive application of centrifugal clarifying and separating techniques. The physical principles of such techniques as well as the design of the centrifugal equipment used, incorporating the latest developments, are dealt with in the first part of this publication. Optimum operating efficiency of centrifugal decanters functioning as pre-clarifiers is demonstrated by describing their operating principles, design, and distinguishing engineering features. For the separation of liquid mixtures and for fine clarification (?polishing”?), self-cleaning centrifugal separators are provided. Based on the constructional features of these separators, various possibilities of sediment discharge and various control systems are explained. The treatment of animal raw fat and the proper process technology are detailed in the second part of this publication. Continuous wet rendering processes are widely used in practice nowadays. Critical comments are given on the advantages of these processes as compared with the dry rendering methods. In conclusion, reference is made to environmental protection. Measures to be taken against air and water pollution are given special attention. |
