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IRONMAKING- BLAST FURNACE PLANT U.S. STEEL DUQUESNE WORKS HAER No. PA-115 (Page 55) Historic Name: United States Steel Corporation, Duquesne Works, Blast Furnace Plant, Iron and Ferroitianganese Production and Delivery System Present Name: U.S.X. Corporation, National-Duquesne Works, Blast Furnace Plant, Iron and Ferroitianganese Production and Delivery System Location: Upper Works Construction: 1896, 1962 Documentation: Photographs of the Duquesne Blast Furnace Plant located in HAER No. PA-115-A. DESCRIPTION I. Blast Furnace Cooling Water Facilities: A. Blast Furnace Number One Bosh Pump House: The bosh pump house for blast furnace number one is located approximately 8'-0" west of cast house number one. The brick enclosure is approximately 10*-0" wide x 17'-0" long x 8'-0" high. Located within the center of the structure is a 125 hp, 1170 rpm Allis- Chalmers motor connected to a Wilson-Snyder pump rated at 5,000 gpm. The pump supplied cooling water to the hearth and bosh area of blast furnace number one. A start-up panel for the pump motor is located inside of the structure just south of the motor/pump assembly. Construction of pump house: 1896. Installation of motor/pump assembly and start up panel: 1961. B. Blast Furnace Number One Stack Pump House: The stack pump house for blast furnace number one is located just south of the bosh pump house. The brick enclosure is approximately the same size as the bosh pump house. It contains a 40 hp, 1775 rpm Westinghouse Life-Line motor which is connected to a size 6 x 6 x 16 AL Wilson-Snyder pump operating at 1000 gpm. The pump supplied cooling water to the stack area of blast furnace number one. Construction of pump house: 1896. Installation of motor/pump assembly: 1963. C. Blast Furnace Number Three Bosh Pump House: The bosh pump house for blast furnace number three is located approximately 8 1 - 0" west of the cast house number three. The approximately 15'-0" wide x 17 , -0" long x 8'-0" high brick enclosure contains two motor/pump assemblies. One assembly consists of a 125 hp, 1170 rpm Allis-Chalmers induction motor connected to a model 16 BA
U.S. STEEL DUQUESNE WORKS HAER NO. PA-115 (Page 56) Wilson-Snyder pump operating at 5,000 gpm. The other assembly consists of a 100 hp, 1780 rpm Westinghouse motor connected to a 6 x 6 x 16 ES Wilson-Snyder pump operating at 1,000 gpm. The pumps delivered cooling water to the hearth and bosh area of blast furnace number three. Construction of pump house: 1896. Installation of 5,000 gpm motor/pump assembly: 1958. Installation of 1,000 gpm motor/pump assembly: 1967. D. Blast Furnace Number Three Stack Pump House: The stack pump house for blast furnace number three is located just south of the bosh pump house. The approximately lO'-O" wide x 17'-0" long x 8'-0" high brick enclosure contains 100 hp, 1450 rpm motor connected to a model 8x6 SKD Allis-Chalmers pump operating at 1,000 gpm. Construction of pump house: 1896. Installation of motor/pump assembly: 1963. E. Blast Furnace Number Four Bosh Pump House: The bosh pump house for blast furnace number four is located approximately 8'- 0" west of cast house number four. The approximately 20'-0" wide x 17*-0" long x 8'-0" high brick enclosure contains a 150 hp, 1180 rpm Allis-Chalmers motor connected to a model 14 BA 2 Wilson-Snyder pump operating at 5,000 gpm. The pump delivered cooling water to the hearth and bosh area of blast furnace number four. Construction of pump house: 1896. Installation of motor/pump assembly: 1959. F. Blast Furnace Number Four Stack Pump House: The stack pump house for blast furnace number four is located just north of the bosh pump house. The approximately 10'-0" wide x 17'-0" long x 8'-0" high brick enclosure contains the remains of two motor/pump assemblies, the main assembly and a booster assembly. The remains of the main assembly consists of a 100 hp, 1175 Westinghouse motor. The remains of the booster assembly consists of a 100 hp, 1770 Allis-Chalmers motor. Construction of pump house: 1896. Installation of main motor: 1970. Installation of booster motor: 1958. G. Dorothy Six Pump House: See inventory of the combustion air production and delivery system - section II - part M for building description. Located within the building are two bosh motor/pump assemblies, two hearth stave motor/pump assemblies, two stack motor/pump assemblies and four strainers. Each bosh motor pump assembly consists of a 200 hp, 1775 rpm General Electric Custom 8,000 motor connected to a model 10 x 12 x 14 1/2 DVC Wilson-Snyder pump operating at 4500 gpm. The bosh pumps
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STEELMAKING PLANT - HEAT TREATMENT
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construction carbon and alloy steel
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