pa1778data.pdf
pa1778data.pdf
pa1778data.pdf
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U.S. STEEL DUQUESNE WORKS<br />
HAER No. PA-115<br />
(Page 86)<br />
Three f and Four: Extending from the top of each blast furnace are<br />
four 5 , -6" diameter refractory brick lined pipes called uptakes.<br />
The uptakes are tied together at each furnace by two 7*-6"<br />
diameter refractory brick lined pipes called downcomers. The<br />
downcomers at each furnace are tied together into one brick lined<br />
pipe before entering the dustcatcher.<br />
B. Dustcatchers for Blast Furnaces Number One, Two, Three, and<br />
Four: A 26'-5" diameter, 17,470 cu. ft. dustcatcher is located<br />
adjacent to blast furnaces one through four.<br />
Installation Dates: 1901 and 1924.<br />
C. Dustcatcher for Dorothy Six: A 40•-0" diameter, 78,860 cu.<br />
ft. dustcatcher, designed and manufactured by John Mohr and Sons,<br />
is located on the grounds of the remains of Dorothy six.<br />
Installation Date: 1962.<br />
D. Rough Gas Main for Blast Furnaces One. Three, and Four:<br />
Exiting each of the dustcatchers at blast furnaces one, three,<br />
and four is a approximately 6'-0" inside diameter refractory<br />
brick lined rough gas pipe. The pipes tie together into the<br />
rough gas main before branching off into the top of one of the<br />
Venturi Gas Washers located at either blast furnace number three<br />
or blast furnace number four.<br />
Installation Date: 1908. However, there have been numerous<br />
replacements and rerouting of the rough gas mains in<br />
succeeding years.<br />
E. Rough Gas Main for Dorothy Six: Exiting the dustcatcher<br />
located on the grounds of the remains of Dorothy Six is a 8'-4"<br />
inside diameter refractory brick lined rough gas pipe. The pipe<br />
leads directly to the Gas Washer for Dorothy Six.<br />
Installation Date: 1962.<br />
F. Venturi Gas Scrubbers at Blast Furnaces Numbers Three and<br />
Four: 150,000 scfm capacity venturi gas scrubbers, manufactured<br />
by the American Air Filter Company, are located approximately<br />
65*-0" east of blast furnace number three and blast furnace<br />
number four. The "carbofrax" brick lined gas washer is designed<br />
to receive rough gas at temperatures up to 500 degrees F.<br />
Installation Date: 1971.<br />
G. Gas Cooling Towers at Blast Furnaces Numbers Three and<br />
Four: 180,000 cfm capacity gas cooling towers, manufactured by<br />
the American Air Filter Company, are located west of the venturi<br />
washers at blast furnaces numbers three and four. The tile lined<br />
gas cooling tower is designed to cool the cleaned gas down to 112<br />
degrees F.<br />
Installation Date: 1971.