BLOCK-MODULAR MODELING OF THE MECHANISM OF PHYSICO-CHEMICAL PROCESSES OCCURRING DURING THE WELDING OF ZINC CAKES

Zarochentsev Vladimir Mikhailovich, Rutkovsky Alexander Leonidovich, Bolotaeva Indira Islanovna

The article presents the results of a study of the welting process. Based on the analysis of the welting processes occurring in the reaction zone of the furnace, the mechanism of the process is formulated as a set of ongoing interactions and a schematic diagram of modeling this mechanism is developed. As a result of the conducted research, a mathematical and block-modular model was developed in Simulink to determine the thermodynamic temperature of the beginning of the reduction of zinc oxide with solid carbon, which made it possible to calculate the temperature conditions of the welting process in the reaction zone of the furnace. For the selected conditions of the process, a mathematical and block-modular model was developed in Simulink, which allows calculating the stationary equilibrium state of the flows of matter, heat and chemical reactions in the reaction zone of the furnace. The solution of the developed model is obtained, which clearly demonstrates the change in the process parameters depending on the oxygen content and the flow rate of furnace gases. The developed model can be used to determine the optimal conditions for carrying out the welting process, designing metallurgical furnaces and creating control systems based on modern information technologies.

Keywords:Metallurgy, welting, zinc oxide, carbon, mathematical model, chemical kinetics, thermodynamic temperature, modeling, block-modular model, equilibrium state.