Computer control of cement raw mill with an improved material mix control scheme

Abstract

A particular quality of cement in a cement plant can primarly be maintained by controling the raw mix proportion at raw mill outlet. The raw mix production control is a very difficult task due to the constantly varying composition of the available raw materials. This paper deals with the design, development and testing of a novel raw material mix production control algorithm for a cement plant raw mill, so as to maintain the present target mix production at the raw mill technique, which is three times faster than the classical SVD, for the calculation of raw material mix proportion. The strength of this algorith has been varified after testing on a 2500 tons per day (tpd) dry process cement plant situated at Jayanthipuram, Andhra Pradesh, India.