STUDY OF THERMOPHYSICAL PROPERTIES OF BLAST FURNACE SLAG DURING ITS THERMAL TREATMENT

Study of thermophysical characteristics of natural and synthetical furnace slag was made. The dependence of changing enthalpy and thermal capacity of slag in the temperature interval from 293 to 1273 K was determined using the method of qualitative thermal analysis. The method of determining the coefficients of thermal conductivity of materials was improved according to thermogram of the cylindrical sample heating. In this procedure the thermal coefficients of blast furnace slag were determined. By using the coefficients of thermal conductivity and predefined values of the specific thermal capacity the dependence of thermal conductivity on temperature and content of titanium oxide (TiO2 ) in slag was discovered. The obtained data can be used to optimize the operating parameters of existing processing facilities of reprocessing blast slag.The obtained data can be used in the design of new facilities, as well as to determine the optimal heating and cooling during the heat treatment of cast slag products. 

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