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本文对钢厂制造流程动态运行过程的物理本质进行了概要的描述，并在此基础上进一步指出：在钢厂制造流程中，铁素物质流与碳素能量流的关系是相伴而行的，而碳素能量流与铁素物质流的关系则是时合时分的。在钢厂制造流程中，不仅存在着铁素物质流网络及相关的运行程序，而且也存在着与铁素物质流转换有关的能量流网络及其运行程序。本文强调在研究钢厂的能源转换功能的方法时指出，不能停留在物料平衡、热平衡的方法上，而应该以动态的输入-输出概念和能量流网络的概念来进一步推动钢厂节能减排工作。本文还讨论了钢厂能量流运行的动力学机制以及能源管控中心的设计原则。进而从铁素物质流系统和碳素能量流系统提出了一系列钢厂节能减排的着手环节。特别对钢厂“只买煤、不买电、不用燃料油”的内涵与煤气等含能介质“近零”排放作了解释。提出中国钢厂的节能减排应该进入以建立能量流网络——能源管控中心为主要标志的新阶段。

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.