摘要
Abstract
In this paper,a 400 kA prebaked electrolytic cell is taken as the research object.Aiming at the negative impact of black dust from anode baking flue gas purification on electrolytic production,studies on characteristic analysis,impact quantification and comprehensive treatment are carried out.Based on sampling and production data analysis from November to December 2024,it is determined that excessive particle size and high impurity content of black dust are the key factors causing cell voltage fluctuation,reduced current efficiency and unstable primary aluminum quality,with an increase of approximately 100 kWh in power consumption per ton of aluminum.A four-in-one comprehensive treatment system of"source control-process adaptation-on-site optimization-emergency support"is constructed and verified on site.This research provides a reference for raw material abnormality treatment in similar enterprises and supports the refined and intelligent production of the workshop.关键词
400kA预焙电解槽/黑料/电解生产/工艺优化/节能降耗Key words
400kA prebaked electrolytic cell/black material/fluorine-loaded alumina/electrolytic production/process optimization/energy saving and consumption reduction分类
矿业与冶金
