Abstract: The technological progress of steelmaking process in Hesteel was briefly introduced in this paper. And the key economic and technical indicators of Hesteel were comparative analyzed simultaneously. The following techniques were described in detail, and it include precise and clean steel control technology, dry dust removal in converter, automatic steelmaking technology based on flue gas analysis, continuous casting slab heavy pressure technology, steel slag quenching and waste heat recovery,and big data quality control system. All of above techniques have been applied in Hesteel production line which provided favorable support for low costing green steelmaking and high grade, high value-added product development. In addition, the direction of development would be point out in the paper. And the intelligent steelmaking, jet metallurgy for big scrap radio and process flow control technology being developed and applied in the further to show innovative ability of Hesteel were also introduced in the paper.

Key words: automatic steelmaking, continue casting heavy press, big date process and quantity control, clean manufacturing