pa1778data.pdf

U.S. STEEL DUQUESNE WORKS
HAER No. PA-115
(Page 172)
constructed of brick. A 25'-0" wide x 31'-7" long x 17'-0" high
air compressor room made of brick construction is adjacent to the
maintenance shop at its southern end. Several pallets of
refractory brick lay on the floor near the southern end of the
aisle. The aisle is serviced by two Morgan E.O.T. cranes with a
capacity of 2 5 tons.
B. Charging Aisle: The 80'-0" wide x 785 , -2" long charging
aisle makes up the middle bay of the building. It extends 325'-
0" farther south than the stock house aisle and is composed of
two floors, the ground floor and the charging floor. Located on
the ground floor, 430*-0" from the southern wall of the aisle and
laid out on a north-south axis, is a 35'-0" wide x lOO'-O" long x
17i-0" high 6600 volt indoor sub station constructed of brick.
The station contains control panels for all of the electrical
eguipment located in the electric furnace building. Several
overhead charging buckets with 50-ton capacities are stored on
the ground floor near the southern end of the aisle.
The charging floor is made up of a 80'-0" wide x 20'-0" high
steel framed platform. It extends from the northern wall of the
aisle for a distance of 556 l -0". Located along the western side
of the floor near its mid-point is the melters office.
Constructed of sheet steel, the office is 15'-0" wide x 22*-0"
long x 8'-0" high and is flanked by four 25'-0" x 7*-6" high
ladle alloy addition stock bins on its northern and southern
side.
Running down the center of the floor on a wide gauge track
for its entire length are two 7 1/2-ton capacity Alliance side
door charging machines. The machines travel by means of a
electrically powered rail located on the western side of the
aisle.
The eastern side of the floor is made up five magnesite
brick-lined electric furnaces and their transformer houses. All
of the tooth rocker-type furnaces were constructed by the
American Bridge Company. The southern most furnace (X-5) is
located 283'-6" off the south wall of the aisle. It has a
capacity of 85 tons and is top charged. A 25,000 kva transformer
services the furnace. Furnace X-l is located 64'-0" due north of
X-5. The top charged furnace has a capacity of 20 tons. It is
serviced by a 6000 kva transformer. Located 180'-0" north of
furnace X-l is furnace X-4. Side door charged, the furnace has a
capacity of 85 tons and is serviced by a 22,500 kva transformer.
Furnace X-3 is located 60'-0" north of furnace X-4. It has a
capacity of 85 tons and is side door charged. A 22,500 kva
transformer services the furnace. Located 8 3*-0" north of
furnace X-3 is furnace X-2. The side door charge furnace has a