Abstract
As people pay more and more attention to environmental protection, energy conservation in the whole process of steel manufacturing has become a hot research object. China’s steel manufacturing process has a history of energy conservation for more than 40 years. The total energy consumption per ton of steel of large and medium-sized enterprises has dropped from 1.646tce/t to 555.24kgce/t. This paper puts forward a new theory of process reconstruction, which is mainly explained from the following three aspects: analysis-optimization of the set of procedures’ functions, coordination-optimization of the set of procedures’ relations, and reconstruction-optimization of the set of process’ procedures. Then, the paper expounds the relationship between process reconstruction and energy saving from two aspects: interface technology and synergy of material flow and energy flow. After applying the new process reconstruction technology, the energy-saving effect of about 5% was achieved in the steel plant experiment. Finally, the research direction of energy conservation in steel manufacturing process is proposed.
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