Experimental dynamic characteristics of phosphorite concentrate drying process
Abstract
The process of drying phosphorite concentrate in a rotating drying drum is an object of automatic control with a variety of variables involved in the process and their complex interrelation and interdependence. Obtaining a mathematical description of such an object is a necessary stage of its automation. The description can be represented in the form of a system of differential, integro-differential, integral and similar equations or in the form of transfer functions. Composition of differential equations by analytical method using physical laws of heat and mass transfer leads to a system of equations in partial derivatives, which are not always practically suitable. In addition, some constant coefficients of these equations are unknown and cannot be determined at the actual site.
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