Future Steelmaking Processes

Fruehan, Prof. R. J.

Carnegie Mellon University, MSE Department (United States)

关键词: Energy Consumption;    Productivity;    01 Coal, Lignite, And Peat;    Capitalized Cost;    Furnaces;   

DOI  :  10.2172/840930
RP-ID  :  NONE
RP-ID  :  FC36-01ID14208
RP-ID  :  840930

美国|英语

来源: UNT Digital Library

【 摘 要 】

There is an increasing demand for an ironmaking process with lower capital cost, energy consumption and emissions than a blast furnace. It is the hypothesis of the present work that an optimized combination of two reasonable proven technologies will greatly enhance the overall process. An example is a rotary hearth furnace (RHF) linked to a smelter (e.g., AISI, HIsmelt). The objective of this research is to select promising process combinations, develop energy, materials balance and productivity models for the individual processes, conduct a limited amount of basic research on the processes and evaluate the process combinations. Three process combinations were selected with input from the industrial partners. The energy-materials and productivity models for the RHF, smelter, submerged arc furnace and CIRCOFER were developed. Since utilization of volatiles in coal is critical for energy and CO{sub 2} emission reduction, basic research on this topic was also conducted. The process models developed are a major product developed in this research. These models can be used for process evaluation by the industry. The process combinations of an RHF-Smelter and a simplified CIRCOFER-Smelter appear to be promising. Energy consumption is reduced and productivity increased. Work on this project is continuing using funds from other sources.