Blast-furnace ironmaking -- Existing capital and continued improvements are a winning formula for a bright future
- U.S. Steel, Monroeville, PA (United States)
Throughout the years the blast-furnace process has been improved upon significantly. Increases to the hot-blast temperature, improvements to the physical, chemical, and metallurgical properties of coke and burden materials, the use of more fuel injectants, and improvements to the design of the furnace facilities have led to significant decreases in furnace coke rate, increases in productivity, and increases in furnace campaign life. As a result, many of the alternative cokeless reduction processes have not replaced blast-furnace hot-metal production in North America. In the future, these continued blast-furnace improvements will potentially result in coke rates decreasing to 400 pounds per net ton of hot metal (lb/NTHM) as more pulverized coal is injected. These improvements, coupled with the fact that existing blast furnaces and coke plants can be refurbished for approximately $110 per annual ton of hot metal [$100 per annual net ton of hot metal (NTHM)], will result in extending the life of the North American blast furnaces well into the twenty-first century.
- OSTI ID:
- 129071
- Report Number(s):
- CONF-9504182-; ISBN 0-932897-99-1; TRN: IM9550%%439
- Resource Relation:
- Conference: 78. steelmaking and 54. ironmaking conference, Nashville, TN (United States), 2-5 Apr 1995; Other Information: PBD: 1995; Related Information: Is Part Of Ironmaking conference proceedings. Volume 54; PB: 584 p.
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BLAST FURNACES
TECHNOLOGY UTILIZATION
SERVICE LIFE
METAL INDUSTRY
FORECASTING
FUEL SUBSTITUTION
BITUMINOUS COAL
CONSUMPTION RATES
COKE
OPTIMIZATION
HISTORICAL ASPECTS
PRODUCTIVITY
SPECIFICATIONS
OXYGEN ENRICHMENT
NATURAL GAS
FUEL OILS
TAR
LINERS
COOLING SYSTEMS
COKING PLANTS
WASTE MANAGEMENT
CAPITALIZED COST
COMPILED DATA