Pre-milling system control method based on fuzzy intelligent control and optimization method

Abstract

The invention relates to the field of industrial automatic control and aims to provide a pre-milling system control method based on fuzzy intelligent control and an optimization method. In the pre-milling system control method, a steady flow cabin weight control loop is used for controlling feeding, discharging and self circulation of a steady flow cabin, and a cyclic load control loop is used for controlling feeding, discharging and self circulation of a grinding system; and fuzzy intelligent control is adopted in the steady flow weight control loop, and a prediction control method is adopted in the cyclic load control loop for controlling. According to the invention, the weight of the steady flow cabin is stably kept within a safety range, and severe oscillations are avoided; the prediction control method adopted in the cyclic load control loop can be used for effectively processing non linearity, strong coupling, multiple variables, large time-delay and other properties in a pre-milling system flow, and effectively treating constraint conditions; and thus, the fluctuations of all variables are obviously reduced, the automation level of a pre-milling system is increased, the labor intensity of workers is reduced, and the purpose of stable and optimized operation of the system is achieved.

Description

technical field [0001] The invention relates to the field of industrial automatic control, in particular to a control method for a pre-grinding system based on fuzzy intelligent control and an optimization method. Background technique [0002] The cement production process is a complex physical and chemical process. Although the production process is constantly developing, from shaft kiln, hollow kiln, wet process kiln, preheater kiln to the current new dry process kiln (preheater with decomposition outside the kiln), The overall production process remains unchanged, that is, two mills and one kiln (raw material mill system, cement kiln system, cement mill system). [0003] Among them, the pre-grinding process is an important link in cement production. Because of its characteristics of large lag, nonlinearity, and strong coupling, it has always been an important and difficult issue in cement process control. At present, most of the pre-grinding process of domestic cement pr...

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