pa1778data.pdf

#
U.S. STEEL DUQUESNE WORKS
HAER No. PA-115
(Page 59)
furnace sits on a 29'-0" diameter x 12'-2" deep ceramic bottom
block. It has a working volume of 32,542 cubic feet. Sixteen
equally spaced 18" diameter tuyere openings encircle the
furnace's hearth. The tuyere openings are located 10 f -2 1/2"
above the bottom of the hearth. The iron notch is located on the
eastern side of the furnace, 3 f -l 1/2" above the bottom of the
hearth. The "monkey" is located 90 degrees from the iron notch
on the northern side of the furnace, 7'-6 1/2" above the bottom
of the hearth. The furnace shell is 7/8" thick. The carbon
brick lining between the furnace shell and the circumference of
the hearth is 3'-0" thick. The furnace bosh and stack is lined
with several courses of fire brick.
Original construction date: 1896.
Last relining: 1971.
Retired: 1982.
D. Remains of Blast Furnace Number Four: The shell of blast
furnace number four is located 2 9 3'-0" south of blast furnace
number three. The height of the furnace is 100'-0" from the
bottom of the hearth to the top of the stack. The diameter of
the hearth is 24 , -6". The furnace sits on a 30'-6" diameter x
10'-6" deep ceramic bottom block. It had a working volume of
35,215 cubic feet. Sixteen equally spaced 18" diameter tuyere
openings encircle the furnace's hearth. The tuyere openings are
located 9'-8" above the bottom of the hearth. The iron notch
opening is located on the eastern side of the furnace, 2'-8"
above the bottom of the hearth. The "monkey" is located 9 0
degrees from the iron notch on the southern side of the furnace,
6'-6" above the bottom of the hearth. The furnace shell is 7/8"
thick.
Original construction date: 1896.
Last relining: 1969.
Retired: 1979.
III. Cast Houses:
A. Cast House Number One: Laid out on an east-west axis, cast
house number one is built around blast furnace number one. It is
70*-0" wide x 108 f -0" long x 30'-0" high to the bottom chord of
the truss. The concrete foundation of the building supports a
steel framework which is encased by brick walls. The building f s
louvered 1/4" thick steel plate gable roof is supported by four
equally spaced riveted Pratt trusses running in a north-south
direction which sit on top of two equally spaced Warren trusses
running in a east-west direction. An approximately 20'-0" high x
20 f -2 1/2" wide craneway, running in a north-south direction
extends from the eastern wall of the building. Constructed off
the southern inside wall of the cast house is an approximately
8'-0" wide x 30'-0" long x 10'-0" high control room. The center