20 YEARS OF BATH RECYCLING USING AUTOGENOUS MILLS

摘要

In 1984, Aluminium Becancour Inc. awarded FCB, the former company name of Solios, a contract for the supply of the first fully air-swept autogenous grinding system dedicated to the cryolitic bath processing. Today 16 industrial references are in operation world wide, and the 20th anniversary give us the opportunity to draw up the successive developments brought to the original design in order to comply with the ever-demanding requirements of bath processing : separate storage of bath qualities, full ingots feeding, semi-hot bath processing... This paper will also focus on the latest very hot bath pre-cooling system and its contribution to reduce the smelter HF emissions.