THE STUDY OF THERMAL PROPERTIES OF TITANIUM-MAGNETITE KACHKANAR PELLETS

Abstract

The thermo-physical properties of titanium-magnetite Kachkanar pellets of various basicity were carried out. Using the method of mixing, the dependence of the average physical specific heat of pellets under the temperature and phase composition was found. To find an apparent heat capacity of pellets the authors have used the gravimetric system with continuous registration of changes in the mass of pellet which provides the creation of an oxidizing or neutral atmosphere to separate the processes of oxidation and decarbonization. The coefficients of pellets thermal diffusivity were determined using a quasisteady method enabling simple ratio calculation during continuous heating. The coefficients of thermal conductivity of the pellets were found from the equation connecting the density, heat capacity and thermal diffusivity coefficients. The results are of particular interest and can be used in the design of the new firing units, as well as the optimization of design and operational parameters of the existing ones.