Improvement of smelting energy efficiency through anode production improvement

该项目旨在优化阳极制造技术，解决阳极制造过程中的能源消耗和熔炼槽性能对阳极质量的影响。目前阳极技术的挑战是生产始终如一的高质量阳极，同时应对进料原料的频繁变化，并限制用于阳极焙烧的燃料量。低质量阳极遇到的问题是阳极解体和彻底失效，不仅导致阳极生产所需的能量损失，而且还导致电流和磁场的扰动，增加了额外的功耗。仅在魁北克省，每年就有216，000吨的碳被过度消耗。在现代冶炼计划中，电解槽中碳消耗的显著降低是不可能的，而惰性阳极的实施前景也不清楚。及时改进阳极质量和生产工艺是合理降低碳耗过剩的唯一途径。

This project is planned to optimize the anode manufacturing technology addressing the challenges related to the effect of anode quality of both the energy consumption in anode manufacturing process and the performance of smelting cells. The challenge of the present anode technology is to produce consistently high quality anodes while dealing with frequent changes in the incoming raw materials and limiting the amount of fuel used for anode baking. The issues encountered with low quality anodes are anode disintegration and outright failure resulting not only in the loss of the energy required for the anode production, but also in the perturbation of the current flow and magnetic field increasing the extra power consumption. 216,000 tons of carbon is annually consumed in excess, in Québec alone. In the modern smelting plans a significant reduction of carbon consumption in electrolytic bath is not possible while the perspective for implementation of inert anodes is not clear either. In time, the improvement of anode quality and production process is most likely the only way to reasonably reduce the excess carbon consumption.