Rod Mill Replacement at Aluminium Oxid Stade GmbH

摘要

After 30 years of operation Aluminium Oxid Stade GmbH (AOS) had to replace one of their two rod mills. The mill showed a lot of cracks at the flange section caused by repair welding and cracks at the foundation. This paper will describe basic tests before replacement, bauxite treatment before installation in order to increase milling capacity of the second old rod mill, modification of the DSM screen, mill installation, main technical differences between old and new rod mill and final grinding test.