Development of a Sludge Slagging Combustor

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Title Development of a Sludge Slagging Combustor
Creator Yoshigae, Takeo; Suzuki, Tomio
Publisher Digitized by J. Willard Marriott Library, University of Utah
Date 1990
Spatial Coverage presented at San Francisco, California
Abstract Kobe Steel has developed a sludge slagging combustor (1). The main features of this combustor are the use of swirling flow combustion and two-stage air injection. Swirling flow combustion increases the combustion intensity, dust collection and retention time. Two-stage air injection produces a desirable flow pattern and temperature distribution. Additional fuel is added in order to keep the wall temperature of the slagging combustor uniform at above one hundred degrees higher than the ash fusion temperature. The sewage ash melts quickly after entering the slagging combustor. The slag capture for ash is over 95%, and the NOx emission is less than 100 ppm corrected to 12% Oz. A heavy metal water-miscible test indicates no problem with slag disposal and a strength test indicates that the slag can be used as a construction material. The sludge slagging combustor has been applied to a 40 ton-cake per day Melting After Carbonizing Sludge system commercial plant. The expected performance of the slagging combustor is comfirmed by the commercial plant operation.
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
Metadata Cataloger Kendra Yates
ARK ark:/87278/s6m32z9h
Setname uu_afrc
Date Created 2012-04-20
Date Modified 2012-09-05
ID 6320
Reference URL https://collections.lib.utah.edu/ark:/87278/s6m32z9h