METHOD OF CONTROL OF TECHNOLOGICAL PARAMETERS OF ORE FLOWS OF GRINDING PROCESS IN PROCESS STAGES OF IRON ORE ENRICHMENT

摘要

A method for control of technological parameters of ore flows of grinding process in process stages of iron ore enrichment includes extreme adjustment of the grinding process performance, recording emergency overloads, temporary exclusion of extreme adjustment, measurement of flow rate and rate of change of consumption of the finished product, measuring the flow of initial product, predicting the flow rate of finished product for the time passage of material through the mill based on the value ​​of the rate of change of consumption of finished product, definition of a new value of consumption of initial material into the mill and continuation of extreme adjustment upon termination of the time of transition process caused by setting a new value of consumption of the finished product. Then it is determined the maximum value of the module of difference of consumptions of initial material cost and consumption of the finished product, measured the maximum value of the rate module of change of consumption of the finished product and determined the ratio of this value to the maximum value of the module of difference of consumption of initial material and consumption of the finished product. The new value of consumption of initial material is determined by multiplying the value of the ratio by the difference of consumption of the finished product obtained as a result of prediction, value of maximum module of difference of consumption of initial material and consumption of the finished product.