pa1778data.pdf

U.S. STEEL DUQUESNE WORKS
HAER No. PA-115
(Page 218)
12* to 32 ! . Crops from the shear fell through a chute into a
crop bucket which was located in a pit on the western side of the
flying shear.
A double skew gathering table is located immediately past
the 21" flying shear. It was used to collect the billets in
gangs after shearing. The skew table segregated the billets by
size and type. Short pieces—billets, usually one per ingot,
which formed the remainder of the ingot and which conseguently
could not be cut into the proper length—were flipped off of the
skew table by a short piece ejector into a cradle.
From the skew gathering table, the billets were moved to a
rope driven transfer table which in turn moved them westward to
the hot bed run-in table. Product from the hot saw line was also
moved to the hot bed run-in table by a rope driven transfer
table. The run-in table delivered the billets to one of three
hot beds which were laid out perpendicular to the 21" mill line.
The rope driven hot beds ran in a westerly direction and dropped
the cooled billets into a cradle that is located in the shipping
building. The billets were subsequently picked up by an E.O.T.
crane and piled for shipping.
2. Scale and Waste Water Collection Facilities: The scale
and waste water collection system at the primary mill building
begins in the soaking pit section. A 20' deep concrete pit
running directly underneath the ingot car buggy tracks collected
loose scale which dropped from the ingots that were being
transferred from the soaking pits to the ingot receiving table.
The pit was periodically cleaned out by a cable-drawn scale
bucket which travelled along the bottom of the trough, and
carried the scale to the southern end of the soaking pit section
up a slight incline and into a cinder box. The box was
subsequently moved by means of an electric platform truck to a
cinder pit, located outside of the eastern wall of the soaking
pit section. From there, the contents of the box, and others
like it, were periodically dumped into a railroad car or truck.
An extensive scale and waste water system of flumes is
located in the basement of the building's mill section, directly
beneath the rolling equipment. It is divided into three
sections. The first section covers the 46" x 110" mill area.
The flume extends from the ingot receiving table to the 46" mill
shear. It collected the scale and waste cooling water slurry
from the receiving table, the 46" x 110" roll stand, the hot
scarfer, and the 46" mill shear. The flume is sloped from each
end so that the slurry flowed downward to its center which is
located directly below the 46" x 110" roll stand. From there the
flume extends westward at a slope of 9 degrees to Scale Pit No. 1