Ural Federal University named after the first president of Russia B. N. Yeltsin, Yekaterinburg, Russia:

N. G. Ageev, Professor of a Chair of Metallurgy of Heavy Non-ferrous Metals
V. P. Zhukov, Professor of a Chair of Metallurgy of Heavy Non-ferrous Metals, e-mail: zhukov.v.p@mail.ru

“Mednogorsk Copper-Sulphur Combine” JSC, Mednogorsk, Russia:

K. V. Bulatov, Chief Engineer
D. Yu. Skopin, Chief Metallurgist

There was developed the determined model of copper smelting complex “melting furnace – combined melting – conversion”. This model makes it possible to carry out the quantitative assessment of material and heat flows in united technological chain of melting units. As applied to Mednogorsk Copper-Sulphur Combine, there is shown the principal possibility of usage of the model for the purpose of calculation of optimal distribution of oxygen with restricted power of oxygen station between the shaft furnace and autogenous melting complex. The model represents a set of material and heat balances of units: combined conversion melting, shaft furnace and matte processing converters. The main blocks of the model are used for the following operations:
— calculation of efficient compositions of raw materials and obtained products;
— enthalpy of the substances, which form the foregoing products;
— material and heat balances.
Existence of circulating materials in the scheme flows between the smelting devices requires the usage of iterative calculations, implemented in environment Excel spreadsheets. Iterative calculations are used for the calculation of heat losses in environment in thermal balance sheets. For the purpose of visualization of calculation and control results of technological process, there is used the block diagram, which makes it possible to change the control parameters and observe the calculation results. The functional diagram of the range of units with variable parameters of furnaces operation is given along with examples of calculations with access to the different conversion melting modes.