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Magazine articles
Pushing performance limits with dryer fabrics, Solutions!, November 2003, Vol. 86(11) (165KB)
Pushing performance limits with dryer fabrics, Solutions!, November 2003, Vol. 86(11) (165KB)
Magazine articles
Different roles for bleached hardwood pulps, Solutions!, November 2003, Vol. 86(11) (149KB)
Different roles for bleached hardwood pulps, Solutions!, November 2003, Vol. 86(11) (149KB)
Magazine articles
Tips for making writing easier part 9: improving your spelling , Solutions!, October 2003, Vol. 86(10) (106KB)
Tips for making writing easier part 9: improving your spelling , Solutions!, October 2003, Vol. 86(10) (106KB)
Magazine articles
Powering up older systems, Solutions!, October 2003, Vol. 86(10) (216KB)
Powering up older systems, Solutions!, October 2003, Vol. 86(10) (216KB)
Magazine articles
What it means to be green, Solutions!, October 2003, Vol. 86(10) (67KB)
What it means to be green, Solutions!, October 2003, Vol. 86(10) (67KB)
Magazine articles
A pulp mill toolkit, Solutions!, October 2003, Vol. 86(10) (370KB)
A pulp mill toolkit, Solutions!, October 2003, Vol. 86(10) (370KB)
Magazine articles
On the road again, Solutions!, September 2003, Vol. 86(9) (80KB)
On the road again, Solutions!, September 2003, Vol. 86(9) (80KB)
Magazine articles
Southern Europe moves toward even greater integration, Solutions!, September 2003, Vol. 86(9) (222KB)
Southern Europe moves toward even greater integration, Solutions!, September 2003, Vol. 86(9) (222KB)
Magazine articles
Lifetime achievement award honors ipstâ??s jim ferris, Solutions!, September 2003, Vol. 86(9) (151KB)
Lifetime achievement award honors ipst’s jim ferris, Solutions!, September 2003, Vol. 86(9) (151KB)
Journal articles
Magazine articles
Corrosion damage and in-service inspection of retractable sootblower lances in recovery boilers, TAPPI Journal October 2021
ABSTRACT: Several reports of accidents involving serious mechanical failures of sootblower lances in chemical recovery boilers are known in the pulp and paper industry. These accidents mainly consisted of detachment and ejection of the lance tip, or even of the entire lance, to the inside of the furnace, towards the opposite wall. At least one of these cases known to the author resulted in a smelt-water explosion in the boiler.In other events, appreciable damage or near-miss conditions have already been experienced. The risk of catastrophic consequences of the eventual detachment of the lance tip or the complete lance of a recovery boiler soot-blower has caught the attention of manufacturers, who have adjusted their quality procedures, but this risk also needs to be carefully considered by the technical staff at pulp mills and in industry committees.This paper briefly describes the failure mechanisms that prevailed in past accidents, while recommending inspection and quality control policies to be applied in order to prevent further occurrences of these dangerous and costly component failures. Digital radiography, in conjunction with other well known inspection techniques, appears to be an effective means to ensure the integrity of sootblower lances in chemical recovery boilers used in the pulp and paper industry.