Integral-differential equation of fine grinding kinetics
Journal Title: Технічна механіка, Техническая механика, Technical Mechanics - Year 2016, Vol 4, Issue 4
Abstract
Kinetics for fine grinding the ore is analyzed. The form of an integral-differential Zagustin’s equation of the grinding kinetics is employed to describe variations in the distribution function of particles by sizes in grinding. The research objective is to modify the form of a kinetic equation for grinding considering the special features for material jet grinding. To attain this, the derived dependences of characteristics of the acoustic signals fixed in the grinding zone on the technological parameters of the process, particles sizes, and properties of the grinding mate-rial are used. Distributive and selective functions of grinding (or a function of selection and failure) are expressed by a maximal amplitude of the acoustic signals. A partial solution of the kinetic equation for jet grinding chamotte is obtained. The results of computations of the grinding kinetics are compared with the data of experi-mental grinding using the laboratory jet mill.
Authors and Affiliations
N. Pryadko, Ye. Ternovaya
Keywords
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