Latest developments in the hatch continuous steelmaking process
Hatch developed the patented Continuous Reduced Iron Steelmaking Process ( CRISP) as a response to the changing needs of the steel industry.The key incentives for this novel,patented technology are improved operating costs and significant environmental benefits as well as the ability to process unique alternative materials.It also represents a viable alternative to the traditional integrated steel plant.The paper for the 2013 Baosteel Biennial Academic Conference outlines the concepts of CRISP as well as the results of the successful piloting at the Swerea MEFOS Metallurgical Research Institute in Lulea,Sweden.Of particular importance to the successful implementation of this technology is the high degree of flexibility the CRISP concept provides.Originally developed for the continuous melting of gas-based DRI,hot or cold,the inherent features of the CRISP technology allow processing of other charge materials such as the high gangue DRI,partially reduced DRI,iron-bearing metallic waste materials or scrap.In contrast to conventional electric furnace steelmaking,the CRISP technology has a number of advantageous features : ( 1) superior iron yield;(2) ability to charge and melt fine material;( 3 ) lower energy consumption rate and carbon footprint;(4) significantly longer residence time in the furnace;(5 ) capability of handling large volumes of slag;(6) lower CO2 emissions;(7 ) stable furnace power load enables supply from weaker grids.The operational benefits and the economic incentives for these applications are presented.
CRISP continuous steelmaking stationary electric furnace DRI- based steelmaking slag control steel decarburization piloting steel technology low grade DRI
Frank Wheeler Yakov Gordon Marka Okrutny
Senior Consultant , Iron and Steel,Hatch Ltd.,Mississauga,Ontario,Canada Technical Director-Ironmaking,Iron and Steel,Hatch Ltd.,Mississauga,Ontario,Canada Process Engineering,Iron and Steel , Hatch Ltd.,Mississauga,Ontario,Canada
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2013-06-01（万方平台首次上网日期，不代表论文的发表时间）