pa1778data.pdf
pa1778data.pdf
pa1778data.pdf
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#<br />
U.S. STEEL DUQUESKE WORKS<br />
HAER NO. PA-115<br />
(Page 109)<br />
blowdown rates were kept as close to zero as possible. 9<br />
The combustion air and delivery system at the Duquesne blast<br />
furnace plant began as a relatively simple operation. Early<br />
additions and changes to the system were primarily aimed at<br />
increasing production and efficiency. These changes centered on<br />
the introduction and subsequent improvements of the plant's wet<br />
gas cleaning systems, the improvement of its cold blast<br />
production and delivery equipment, and improvements in hot blast<br />
stove construction. Beginning with the addition of the<br />
ferromanganese gas cleaning plant in 1953 and running through the<br />
installation of the various water treatment facilities, however,<br />
innovations to the system were increasingly driven by government<br />
imposed environmental protection policies rather than by<br />
traditional productivity concerns. During the five years<br />
preceding the shutdown of the blast furnace plant in 1984,<br />
millions of dollars were spent to change the combustion air and<br />
delivery system as a result of this latter category.<br />
ENDNOTES:<br />
l."The Duquesne Furnaces of the Carnegie Steel Co., Ltd.,"<br />
The Iron Trade Review 30 (March 25, 1897): 9-10; "The Duquesne<br />
Furnace Plant of the Carnegie Steel Company, Limited," The Iron<br />
Age 59 (March 25, 1897): 9-11; Carnegie Steel Company, "General<br />
Arrangement of Blowing Engine House for 40" x 78" x 76" x 66"<br />
Engines, Drawing #1341, July 31, 1895"; "Operation of Blast<br />
Furnace Gas Engines," The Iron Age 88 (July 6, 1911): 36; and<br />
Carnegie Steel Company, "Equalizing Pipe for Furnaces No. 1 & No.<br />
2: Drawing #1511, June 5, 1896."<br />
2.A. N. Diehl, "The Blast Furnace Regenerative Stove," The<br />
Iron Age 89 (March 7, 1912): 580; "Operation of Blast Furnace Gas<br />
Engines," The Iron Age 88 (July 6, 1911): 36-8; A. N. Diehl,<br />
"Data Pertaining to Gas Cleaning at the Duquesne Blast Furnaces,"<br />
Transactions of the American Institute of Mining Engineers 50<br />
(1914): 3-46; J. M. Camp and C. B. Francis, The Making, Shaping<br />
and Treating of Steel. Fourth Edition, (Pittsburgh, 1925), 175-<br />
179; A. N. Diehl, "How to Clean Blast Furnace Gas," The Iron<br />
Trade Review 54 (March 26, 1914): 590-593; "Keeping Your Furnace<br />
Gas Clean," The Iron Trade Review 54 (March 12, 1914): 516-518;<br />
J. E. Johnson Jr., Blast Furnace Construction in America, (New<br />
York, 1917), 306-27; Carnegie Steel Company, "Duquesne Works:<br />
Plant Description Book," (Duquesne, 1925), 42, 43; and Carnegie<br />
Steel Company, "General Arrangement of Piping for Gas Cleaning<br />
Plant: Drawing #6220, September 24, 1907."<br />
3.L. E. Liddle, "Effect of Moisture Additions to the Air<br />
Delivered to Blast Furnaces," Blast Furnace and Steel Plant 3 3