变性淀粉脱水及气流干燥系统的控制策略优化  

Control Logic Optimization of Modified Starch Dewatering and Drying System

作　　者：邱炜[1,2] 王豪[1] 袁蔡斌 徐文艳[4] 

机构地区：[1]上海交通大学自动化系,上海200240 [2]国民淀粉工业(上海)有限公司,上海201600 [3]中国海诚工程科技股份有限公司,上海200031 [4]上海师范大学生命与环境科学学院,上海200234

出　　处：《化工自动化及仪表》2013年第4期439-442,共4页Control and Instruments in Chemical Industry

摘　　要：根据工作原理将变性淀粉脱水及气流干燥的工艺分成两部分来研究。通过在线预估得到淀粉压滤脱水环节的生产速率,将该速率进行适当的转换以确定下游气流干燥环节的干燥速度,并对气流干燥环节的最终成品水分和相关的尾气温度做一定程度的控制优化,使得整条生产线在优化产能的同时,提高成品含水率的稳定性和产品质量。对比试验证明了该系统相对于原系统的优越性。In terms of modified starch dewatering and drying process,the whole system was divided into two sub-systems for analysis.Through on-line estimation and calculation,the productivity of dewatering process can be obtained and properly transformed to determine downstream drying rate and to optimize both moisture of finished products and temperature of end gas so that entire production line can be optimized and both moisture content stability and product quality of finished products can be improved.Comparative tests prove superiority of this system versus the original system.

关 键 词：优化控制 PID控制 变性淀粉 脱水干燥 

分 类 号：TH862[机械工程—仪器科学与技术]