生料浆配料过程综合自动化系统

Integrated Automation System for Raw Slurry Blending Process

在烧结法氧化铝生产中,生料浆配料过程具有大惯性、参数时变、多变量耦合、强非线性等综合复杂特性,因此,传统的人工配料生产方式导致配料过程能源消耗大,生料浆的各项工艺指标合格率低,生产效率低。针对上述问题,提出了基于生料浆工艺指标优化的配料过程综合自动化系统。该系统由过程管理、智能优化设定控制、过程控制三层结构组成,讨论了系统的结构、功能和智能优化设定控制策略。该系统成功应用于国内某大型氧化铝厂生料浆配料过程中,稳定了生产流程,提高了生料浆各项工艺指标的合格率,实现了优化控制、优化管理和优化运行,取得了显著的应用效果。

Raw slurry blending is a nonlinear, multivariable, strong coupling process with large time lag in alumina industry. The integrated automation system based on intelligent technology was proposed innovatively, which consists of three layers： intelligent optimization control, process control and process management. The structure, functions and control strategy of this system were discussed. The integrated automation system proposed was successfully applied to the raw slurry blending process of an alumina processing factory.