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Alternative TitleMethod for intelligently controlling pressure difference of cement raw meal vertical mill
苑明哲; 王卓; 宁艳艳; 朱光
Rights Holder中国科学院沈阳自动化研究所
Patent Agent沈阳科苑专利商标代理有限公司 21002
Other AbstractThe invention discloses a method for intelligently controlling the pressure difference of a cement raw meal vertical mill. In the method, internal pressure difference of the mill is taken as a major controlled variable, external circulating current is taken as an auxiliary controlled variable, a feeding amount is taken as a major control variable, and a water spray amount is taken as an auxiliarycontrol variable. The method comprises the following steps of: judging a current production condition according to the internal pressure difference of the mill and external circulating current information with a production rule method and under the normal working condition, controlling the internal pressure difference of the mill by adopting GPC-PID (Generalized Predictive Control-Proportion Integration Differentiation). In the method, a mathematic model for describing the change of the pressure difference along with the feeding amount can be established only by using input and output data of a process without analyzing the complex material milling process of the raw meal vertical mill, the identifying process is simple, and online identification is available the method has certain adaptability to the change of the production condition and the advantages of multistep prediction, rolling optimization and feedback correction of a GPC algorithm as well as the advantages of easiness and high robustness of a PID algorithm are fully utilized, so that the labor intensity of field operating personnel is lowered greatly.
PCT Attributes
Application Date2011-07-05
Date Available2013-05-15
Application NumberCN201110186847.X
Open (Notice) NumberCN102319612A
Contribution Rank1
Document Type专利
Recommended Citation
GB/T 7714
苑明哲,王卓,宁艳艳,等. 一种水泥生料立磨压差的智能控制方法[P]. 2012-01-18.
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