MICHAEL JAMES FRIEDRICH
Engineers in Pittsburgh, PA

License number
Pennsylvania PE029572E
Category
Engineers
Type
Professional Engineer
Address
Address
Pittsburgh, PA 15228

Personal information

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Name
Address
Phone
Michael Friedrich
579 Crystal Dr, Pittsburgh, PA 15228
Michael Friedrich
207 Pearl St, Harrisburg, PA 17109
Michael Friedrich
579 Crystal Dr, Pittsburgh, PA 15228
Michael Friedrich
19 Cardinal, Middletown, PA 17057
(215) 547-9819
Michael Friedrich
207 Pearl St, Harrisburg, PA 17109

Professional information

Michael Friedrich Photo 1

Preheating Cold Blast Air Of A Blast Furnace For Tempering The Hot Blast Temperature

US Patent:
7232542, Jun 19, 2007
Filed:
Apr 5, 2004
Appl. No.:
10/818440
Inventors:
Michael Friedrich - Pittsburgh PA, US
Robert D'Arrigo - Bridgeville PA, US
Assignee:
Aker Kvaerner Metals, Inc. - Pittsburgh PA
International Classification:
C21B 13/00, C21B 11/02
US Classification:
266 44, 266197, 266144, 432214
Abstract:
An improved blast furnace system for producing molten iron incorporating a preheater to heat the cold blast air used to temper the hot blast temperature is disclosed. The improved blast furnace system comprises a blast furnace, a hot blast main for conveying a supply of hot blast to the blast furnace, a plurality of stoves for heating a supply of cold blast and generating the hot blast, a cold blast main for conveying a supply of cold blast to the plurality of stoves, and at least one cold blast preheater for heating a portion of the cold blast, that has been diverted to the preheater, into heated air and the heated air is mixed with the hot blast to temper the hot blast temperature.