Gary Works No. 13 blast furnace: A new removable trough design

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

OSTI ID:129075

Schuett, K J; Pawlak, J P ^[1]; Traina, L; Brenneman, R G

---

1. U.S. Steel Group, Gary, IN (United States). Gary Works

No. 13 Blast Furnace at US Steel`s Gary Works is a 35 tuyere furnace with a 36.5 ft. hearth capable of producing over 9,000 tons of hot metal per day. The current casthouse design was placed in service following the second reline in the fall of 1979. This design anticipated daily production rates averaging 7,500 tons of hot metal per day and provided for removable troughs at two of the three tapholes. At the time, the troughs were rammed with a high alumina/silicon carbide granular ramming material that provided the operators with trough campaign lives between 60,000--70,000 tons of hot metal produced. As refractory technology progressed, low cement/low moisture castables were introduced to the trough systems on No. 13 Blast Furnace. The immediate success of the castables was tempered by emergence of a new unexpected problem. That problem was the thermal expansion of the castable. The paper describes the problems that resulted in the need to modify the trough design, the new design of the trough, and its improvement in iron trough campaign life and reliability.

• OSTI ID: 129075
• Report Number(s): CONF-9504182--; ISBN 0-932897-99-1
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
ALUMINIUM OXIDES
BLAST FURNACES
CEMENTS
DESIGN
JOINTS
LINERS
MODIFICATIONS
PRODUCTIVITY
REFRACTORIES
SERVICE LIFE
SILICON CARBIDES
SPECIFICATIONS
THERMAL EXPANSION
THICKNESS