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兆丰铝冶240KA预焙槽于2003年9月份初二期工程已全部投入运行。2004年8月份三期78台槽也准备通电焙烧,我们在二期焙烧启动技术的基础上,取长补短,吸取经验教训,三期现已有24台槽投入生产,生产运行较二期运行平稳。本文对该槽型三期所采用的焦粉焙烧启动技术应用于实践效果进行介绍。该技术具有升流快,冲击电压低,焙烧过程阴阳极电流分布均匀,操作简单,启动平稳等特点。
Mega Aluminum Smelter 240KA pre-baked tank in September 2003 the second phase of the project have all been put into operation. In August 2004, 78 units of three stages were also prepared for power roasting. Based on the two-stage roasting and start-up technology, we learned from experience and lessons learned. In the third stage, 24 units have been put into production in the third stage and the operation of the production runs smoothly compared to the second stage. In this paper, the trough-type coke powder roasting start-up technology used in the third stage is introduced in practice. The technology has fast upshift, low impulse voltage, uniform cathode and cathode current distribution during roasting, simple operation and steady start-up.