Comment on Behavior of Energy Flow and Construction of Energy Flow Network for Steel Manufacturing Process

The physical essence of the dynamic operation of steel manufacturing process is described in this paper.It is pointed out that in the steel manufacturing process,the ferrogenious flow is accompanied by energy flow,but the energy flow sometimes operates with ferrogenious flow,sometimes operates separately.And there is not only ferrogenious flow network and related operating program,but also the energy flow network and its program,which related with ferrogenious flow transform.It is stressed that the material balance and heat balance are not the only way for studying the function of energy conversion.The new concept of dynamic input-output and the energy flow network should be used to further promote the energy-saving and emission reduction work in steel plants.The operation dynamic mechanism of energy flow in a steel plant and the design principles of energy control center are also discussed in this paper.And then,a series of measures of energy-saving and emission reduction are proposed based on the mechanism of ferrogenious flow and carbon energy flow system.The connotation of "buying coal only,no buying electricity and no fuel" and the "zero emissions" of by-product gases and other energy mediums are especially explained.It is proposed that energy-saving and emission reduction for Chinese steel plants would enter a new stage marked by building energy flow network-Energy Control Center.