多维决策系统在300kA预焙铝电解槽温度控制中的应用

来源期刊：冶金自动化2010年第1期

论文作者：王坚 赵志强 曾水平 包昌 刘强

文章页码：54 - 57

关键词：铝电解槽； 多维决策； 温度控制

Key words：aluminium electrolytic cells； multi-dimensional decision； temperature control

摘    要：东方希望包头稀土铝业有限责任公司基于多维决策系统,设计了300 kA预焙槽铝电解温度控制系统。该系统主要完成参数的采集、参数预处理、初晶温度计算、专家知识规则库建立与更新及决策量的模糊推理等功能。系统通过对氟化铝添加量、出铝量、设定电压等参数的调整,实现对电解槽温度的控制。该控制系统在东方希望包头稀土铝业有限责任公司300 kA铝电解槽上运行以来,铝电解温度稳定控制在950~960℃,直流电耗从吨铝13 460 kW.h降低到13 000 kW.h,取得了明显的效果。

Abstract: Based on multi-dimensional decision system,a temperature control system for 300 kA pre-baking aluminium electrolytic cells was designed in Baotou Rare Earth Aluminium Company.Functions of the system include acquisition and preprocessing of parameters;calculation of liquids temperature,establishment and updating of expert knowledge base,and fuzzy inference of decision content.Temperature control of electrolytic cells was realized with regulation of aluminium fluoride addition,aluminium tapping quantity and setting voltage etc.parameters.The control system has been applied to 300 kA aluminium electrolytic cells in Baotou Rare Earth Aluminium Company several months.Temperature of aluminium electrolysis was controlled within 950~960 ℃,DC energy consumption was reduced from 13 460 to 13 000 kW·h.