SIMULATION OF MELT SOLIDIFICATION IN VANYUKOV FURNACE IN CASE OF EMERGENCY STOP

The mathematical 3D-model of Vanjukov melting furnace is presented. It allows us to predict the behavior of the furnace in emergency operation mode (when oxygen flow is disabled) and to construct the effective additional heating system, which dampens the consequences of emergency mode and reduces the costs of the furnace reactivation. It is shown how the enthalpy and porosity method is used to model the molten media solidification in Vanjukov furnace in course of time. The model was adjusted to be adequate with the real operating conditions, which are fuzzy. For the solidifying bath the heating control parameters were found to keep it ready for a fast start. The solidification was solved in a conjugated set with an upper-bath heating system. So the problem of expensive start of furnace after the long emergency stop has been solved.

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