ANODES PLANT - THE NEXT STEP THE HIGHT CAPACITY ANODE PLANT

摘要

Investors in greenfield primary aluminium smelters nowadays often contemplate the construction and operation of one 300kA (or more) potline as a first phase followed by a second identical potline a few years later for a targeted metal production of 600 000 T/year. Alternatively the 2 potlines can be built in one single phase. In such situation there is a strong economic incentive, both CAPEX and OPEX, to consider a high capacity green anode plant, 60 t/h or more, rather than two "standard" 35t/h paste plants. This is now feasible thanks to the two major developments achieved in the last few years : the SCAP Rhodax® process for dry mix preparation and the IMC® process for paste mixing and cooling. The start-up early 2005 of these 2 processes at 35t/h at respectively ALBA line 5, Bahrain and AOSTAR, China confirmed the high standard of operating and anode quality performance achieved. The equipment is already available for the design of one single line of 70 t/h capacity achieving the same performance standards.