pa1778data.pdf

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northern wall and 27'-0" from the western wall.
U.S. STEEL DUQUESNE WORKS
HAER No. PA-115
(Page 62)
Located inside the control room is the snort wheel and a
number of unidentifiable gauges, switches and charts. A 10-ton
Sheppard/Niles crane sits on the cast house craneway.
The remnants of the slag runners lead to a slag pit located
at the southern end of the building. Located below the eastern
end of the cast house is a set of standard gauge tracks which
transported "submarine" ladle cars.
Original construction date: 1896.
Rebuilt: 1918.
Installation of crane: 1924.
IV. Slag Pits:
A. Slag Pit Number One: The slag pit for blast furnace number
one is adjacent to the northern side of the cast house. Laid out
on a east-west axis, the pit is broken up into two approximately
12*-0" deep sections. The section closest to the cast house has
a capacity of 58,100 cubic feet. The other section has a
capacity of 66,500 cubic feet. Running along the sides of the
slag pit are several 6" diameter water pipes which are equipped
with spray connections for spraying the slag after it had been
deposited into the pit. The water was supplied to the
connections at a rate of 500 gpm from a 50,000 gallon holding
tank which is located behind the eastern wall of the cast house.
The holding tank received its contents from a 6" diameter blow-
down line leading from the cold well at the evaporative waste
water recycle system.
Construction of slag pit: 1953.
Installation of holding tank: 1979.
B. Slag Pit Number Four: The 29'-3" wide x SO'-O" long x 22'-
0" deep slag pit for blast furnace number four is laid out on a
north-south axis adjacent to the south end of cast house four. A
lO'-O" high brick wall rims the pit. Several equally spaced
water spray nozzles are located on the brick walls. The spray
nozzles utilized water drawn from the plant's service water
system in order to granulate the slag as it entered the pit. A
31'-4" wide craneway is located directly over the pit. sitting
on top of it is a 15-ton Alliance crane.
Construction of slag pit and craneway: 1909.
Installation of crane: 1958.
V. Ladle Preparation Facilities:
A. New Ladle House: Located approximately 30'-0" south of
clarifier number one, the new ladle house is laid out on a