Automatic Control System Thermal Operation of Mine Fuel Furnace

摘要

The report presents an improved management system for the thermal operation of the Asarco shaft furnace, intended for remelting copper cathodes and is part of the production line for the copper wire rod of OJSC Uralelectromed. The shortcomings of the management system based on the manual operation of thermal work are noted. The basis for a new control system for the thermal operation of the furnace is a mathematical model of the heat storage and gas dynamics processes. In this case, not only the current controlled value of the controlled parameter (furnace output) is used, but also its predicted value determined by the mathematical model of the process. The developed system allows conducting the technological process of melting copper cathodes in an automatic mode. If the control system uses an adequate mathematical model of the processes of heat and mass transfer and gas dynamics in a shaft furnace with the melting of materials based on universal conservation laws, the physico-chemical laws of processes, it substantially improves the quality of management. The automatic control mode for the thermal operation of the furnace allows obtaining more stable parameters of the technological process, which directly affects the quality of the finished product and increases the energy efficiency of production.