Red wine mash fermentation tank - with mixing screw conveyor designed as heat exchanger

摘要

A fermentation tank for red wine mash is a cylindrical vessel with a revolving vertical hollow shaft with spiral mixing and conveying elements. A hot or cold medium can be circulated through the shaft and the spiral elements for a heat exchanger action. The pref. design for these elements is a right-hand small dia. inner screw and a left-hand large-diameter outer screw. Such a tank can be manufactured at low cost and is easy to clean. Its conveying and mixing action functions satisfactorily and gently even with different degrees of filling.