摘要
炭素阳极是铝电解中最至关重要的组成部分,在电解过程中,阳极孔隙率高会导致阳极炭块消耗快、炭渣量升高,造成大量的浪费,是吨铝炭耗远超出理论消耗的主要原因;因此,预焙阳极加密技术的开发是一项具有很大价值的工作。本文主要分析了阳极浸渍时,阳极表面形成滤饼的原因及结果,对阳极孔隙模型与浸渍过程做了一些合理的假设,如将微孔浸渍过程看做泊肃叶流动,在此基础上建立数学模型,使用MATLAB来对数学模型进行模拟计算,对不同浸渍压力、QI(喹啉不溶物)浓度、浸渍剂粘度等参数进行模拟计算,从浸渍效率的结果来对这些参数进行分析优化。
The carbon anode is the most important part of aluminum electrolysis.In the electrolysis process,the high porosity of anode will lead to fast consumption of anode carbon block and increase of carbon slag,resulting in a large amount of waste,which is the main reason that carbon consumption per ton of aluminum far exceeds the theoretical consumption.Thus,development of pre-baked anode densification technology is a work of great value.This article mainly analyzes the reasons and results of the formation of filter cake on the anode surface during anode dipping,and makes some reasonable assumptions about the anode pore model and the dipping process.It regards the microporous dipping process as Poiseuille flow,establishes mathematical model on this basis and uses MATLAB to simulate and calculate the mathematical model.And parameters of different impregnation pressure,QI(quinoline insoluble matter)concentration and impregnant viscosity were simulated,calculated and optimized from the results of impregnation efficiency.
作者
陈蒲明
崔同尧
CHEN Puming;CUI Tongyao(Chongqing Qineng Electric Aluminum Co.,Ltd.,Qijiang400800,China;School of Energy Science and Engineering,Centred South University,Changsha 410083,China)
出处
《金属材料与冶金工程》
CAS
2020年第4期58-63,共6页
Metal Materials and Metallurgy Engineering
关键词
阳极浸渍
浸渍模型
anode impregnation
impregnation model
