pa1778data.pdf
pa1778data.pdf
pa1778data.pdf
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U.S. STEEL DUQUESNE WORKS<br />
HAER No. PA-115<br />
(Page 13 6)<br />
2. Ore, Manganesef and Flux Scale Car: The construction,<br />
manufacture, relative location, and function of the ore,<br />
manganese, and flux scale car for blast furnace number 3 are<br />
exactly the same as its counterpart for blast furnace number 2.<br />
Installation Date: 1920.<br />
3. Ore, Manganese, and Flux Bins: See I - A - 3 for<br />
description.<br />
Construction Date: 1920.<br />
4. Coke Bin: The construction, relative location, and<br />
arrangement of the coke bin for blast furnace number 3 is the<br />
same as the coke bins for blast furnaces number 1 and 2 with the<br />
exception that the vibrating coke screens are made by a different<br />
manufacturer. The 60" wide x 120" long x 4" thick coke screen,<br />
which is inclined at angle of 20 degrees from the mouth of the<br />
weigh hopper openings, was manufactured by the Syntron Company.<br />
A 2 hp motor powers the vibrating coke screen.<br />
Construction Date: 192 0.<br />
Alteration of bin to fit Syntron Vibrating Coke Screen:<br />
1969.<br />
5. Skip Pit: Made up of concrete construction, the skip pit<br />
is 8'-l" wide x 14'-6" long x 20'-2 1/2" deep. Its centerline is<br />
located 40'-0" off of the eastern wall of the stockhouse and<br />
259'-0" from the centerline of the hoist bucket pit for blast<br />
furnace number 2.<br />
Construction Date: 1953.<br />
6. Skip Incline and Track: The skip track consists of a set<br />
of rails 5 f -8 1/2" apart which are mounted to a 9'-10 5/8" wide x<br />
9'-0" high inclined bridge rising for a distance of 164'-9" to<br />
the top of the furnace along its centerline. The incline of the<br />
bridge is broken up into two segments. It rises at an angle of<br />
approximately 70 degrees to a height of 128'-3" where it becomes<br />
an approximate 58 degree angle to the top of the furnace.<br />
Design Date: 1952.<br />
7. Skip Car and Carriage: A skip car (capacity level full =<br />
267 cu. ft.) is mounted on a carriage which is set on the skip<br />
track leading to the top of the furnace. The steel plate<br />
constructed car is 5'-2" wide x ll'-7 1/2" long x 5'-4 1/2" high.<br />
Its carriage is made up of a front and rear rail wheel and axle<br />
assembly. The centerline distance between the front and rear<br />
wheels is 7'-0". The distance between rails is 5'-8 1/2". The<br />
stem of the skip car is mounted on a trunnion, located 3 , -3" from<br />
the rear of the car, and is connected to a 1 1/4" wire rope which<br />
is attached to the motor, drive, and winch drum assembly situated<br />
in the hoist house. The inside of the skip car, which is open at