电解车间排烟装置烟道灰的利用问题,早在1956年就开始研究,清扫电解系列排烟沟收集起来的烟道灰,均经浮选处理。在电解槽加工之后,将处理过的烟道灰加到氧化铝结壳上,并在下次加工电解槽时,将烟道灰打入电解质中,这并没有使电解工艺过程遭到破坏。但加工电解槽时,如果立即把含氧化铝的烟道灰加入电解质中,效果不好,因为其中所含沥青馏分燃烧,从而引起原料飞散。 Electrolysis plant smoke exhaust flue ash utilization, as early as 1956 began to study, cleaning electrolysis series of smoke collected from the flue ash, have been flotation treatment. After the cell is processed, the treated flue dust is added to the alumina crust and the flue ash is driven into the electrolyte during the next cell processing, without disrupting the electrolytic process. However, when the electrolytic cell is being processed, it is ineffective to add the flue ash containing alumina immediately to the electrolyte because the bitumen fraction contained therein burns and the raw material is scattered.