Control System of Coking Plant

The reduction of cost in the process of iron manufacture is of permanent interest in steel-making industry. An important part of the overall cost in the process of iron manufacture is the cost of production of metallurgical coke. This problem is solved by finding a new technologies of iron production (COREX) or optimization of current ways of iron production. Therefore we have adopted the method The control of coking plant has been analyzed and investigated with the aim of proposing optimum control system. This optimum control system consists of optimization and stabilization levels. New ways of optimization and stabilization have been proposed by using the simulation model. The first optimization level represents the kernel of the optimum control of the coke battery. Exact solution is very difficult and is based upon using a complex simulation model of coking and flow of gas media from mixing station all the way to suction of combustion products into the chimney on the basis of optimization principle with the model. Its result is the determination of optimum performance of each coking battery block in such a way as to produce the required amount of coke within given time interval. This optimization level, because of its extent and difficulty, is at the stage of development and testing. The second optimization level solves in a simple way the optimum stabilization of heating capacity of mixture gas. Optimum heating capacity is solved with a method of linear programming. This optimization level was implemented and has brought positive results.