Single taphole blast furnace casthouse performance optimizing cost and availability

Conference · Fri Dec 01 04:00:00 EST 1995

OSTI ID:129073

Fowles, R D; Searls, J B; Peay, W R ^[1]; Brenneman, R G

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1. Geneva Steel, Provo, UT (United States)

The No. 2 blast furnace is a single taphole furnace with a convection air-cooled iron trough. The iron runner system is designed to fill four 90 ton open-top ladles per cast, which are transported by locomotive to the steel shop. The slag runner system is capable of filling three 800 ft{sup 3} slag pots per cast. The No. 2 blast furnace was blown in from mini-reline with this new casthouse configuration in early December 1991. It was operated for nearly three years until it was banked for planned stove repairs and a trough rebuild in late September 1994. During this period, the furnace produced just over 2.5 million tons of hot metal across the original trough refractory lining system, with 13 intermediate hot patch castable repairs. The entire casthouse refractory usage (main trough, runner systems, and covers) during this campaign was 1.06 pounds per net ton of hot metal. Investigation of the lining during demolition indicated that the trough lining campaign could have been extended to at least 3.0 million tons. This paper will discuss how operating practices, mechanical design, refractory design, maintenance philosophy, and attention to detail synergistically contributed to the long campaign life and low refractory consumption rate.

• OSTI ID: 129073
• Report Number(s): CONF-9504182--; ISBN 0-932897-99-1
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
BLAST FURNACES
CASTING
CONSUMPTION RATES
DESIGN
EROSION
IRON
LINERS
MATERIALS HANDLING EQUIPMENT
OPERATION
PERFORMANCE
REFRACTORIES
SERVICE LIFE
SLAGS
WEAR