In order to realize the blockage identification of feed opening in the aluminum electrolytic production process and improve the accuracy of alumina concentration control,this paper will introduce an effective method in detail.This method is to install a pressure sensor on the intake pipe of each cylinder,and collect the pressure value in the whole process of breaking and the corresponding duration of breaking for each pressure value.Through data a-nalysis,the minimum pressure value and corresponding duration of breaking are obtained,and the blockage identifi-cation of feed opening and corresponding control strategy are determined according to the changes of these two data during each breaking process.Through tests,this method can effectively identify the blockage identification of feed opening and automatically deal with it,so as to achieve on-demand breaking and material control and reduce equip-ment wear and hammer sticking.It has been widely used in 300 kA to 600 kA large pre-baked electrolyzer and has a-chieved good results.
关键词
铝电解/氧化铝浓度/打壳下料/卡堵识别
Key words
aluminium electrolysis/alumina concentration/breaking and feeding/jam identification
维普
万方数据