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Title Improvement of Reducing Flame Burner with Oxygen Enrichment
Creator Okada, Seiji; Suzuki, Yutaka; Kaminaka, Motofumi
Publisher Digitized by J. Willard Marriott Library, University of Utah
Date 1998
Spatial Coverage presented at Maui, Hawaii
Abstract Recently, in the non-oxidizing furnace (NOF) of the continuous annealing process, steel sheet is heated by reducing and direct fired heating with reducing-flame burner instead of by the radiant tube heating. Firstly we investigated the reductive performance of the burner, and tried to improve the reductive efficiency with preheated and oxygen enriched combustion air. Secondly we attempted to specify the main reductive species by numerical simulation of the laminar coke oven gas (COG) pre-mixed flame. The conclusions are summarized as follows. The oxidized layer on a steel sheet of several mircrons thickness, could be reduced in ten seconds when steel sheet was heated from room temperature to 800°C in a furnace. The reducing flame burner with oxygen enriched combustion air could lead to 1200°C non-oxidizing heating in the open air. As a result of computation, the concentration of H, which is the reductive radical in the reducing flame, was increased by using high temperature flame.
Type Text
Format application/pdf
Language eng
Rights This material may be protected by copyright. Permission required for use in any form. For further information please contact the American Flame Research Committee.
Conversion Specifications Original scanned with Canon EOS-1Ds Mark II, 16.7 megapixel digital camera and saved as 400 ppi uncompressed TIFF, 16 bit depth.
Scanning Technician Cliodhna Davis
ARK ark:/87278/s6g73hcj
Setname uu_afrc
ID 13413
Reference URL https://collections.lib.utah.edu/ark:/87278/s6g73hcj

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Title Page 9
Format application/pdf
OCR Text Show
Setname uu_afrc
ID 13405
Reference URL https://collections.lib.utah.edu/ark:/87278/s6g73hcj/13405