pa1778data.pdf

STEELMAKING PLANT - BASIC OXYGEN
U.S. STEEL DUQUESNE WORKS
HAER No. PA-115
(Page 190)
Historic Name: U.S.S. Corporation, Duquesne Works, Basic Oxygen
Steelmaking System
Present Name: U.S.X. Corporation, National-Duquesne Works, Basic
Oxygen Steelmaking System
Location: Upper Works
Construction: 1964, 1979, 1982
Documentation: Photographs of the Basic Oxygen Steelitiaking Plant
are in HAER No. PA-115-B.
DESCRIPTION
I- Flux Handling Building. Trestle, and Covered Conveyor:
Located approximately 500*-0" south and 200*-0" east of the BOP
shop is the one story, l4 , -6" wide x 240*-0" long flux handling
building. Laid out on a north-south axis, the steel framed
building with corrugated metal exterior was constructed by the
American Bridge Company. Its gable roof is supported by
structural I-beams. The interior of the building contains a 7
1/2-ton hoist which is attached to a car shaker.
The building sits upon an elevated standard gauge single
track trestle which extends 100'-0" past its south wall opening
and 220 ! -0" in front of its north wall opening. Nineteen hoppers
are hung from that portion of the trestle which is located under
the roof of the building. Located below the hoppers is a 24"
motor powered conveyor belt which travels in a northerly
direction. The conveyor rises at a 30 degree angle after it
passes the trestle and travels through a 8'-0" diameter conveyor
tube to the south wall of the BOP shop where it turns at a 90
degree angle and travels in a easterly direction up the wall at a
15 degree angle before turning into the building. Once inside
the building, the conveyor, traveling in a northerly direction,
rises at a 15 degree angle to the furnace aisle's flux storage
floor.
Construction date: 19 63.
II. Mould Preparation Building: Built on a concrete foundation
by the American Bridge Company, the mould preparation building is
located 30*-0" south of the south wall of the BOP shop at its
near western teeming aisle. Laid out on a north-south axis, the
170 , -8" wide x 480*-0" long x 50'-5" high steel framed,
corrugated metal clad structure originally made up the southern
end of the furnace building and the mixer building for Open
Hearth Number One. The southern end of the existing building
(old mixer building) is 117'-3" wide x 58*-0" long. The eastern
wall of the old mixer building is coextensive with the centerline