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Journal articles
89JUN183
Soviet wood chemistry today - Part 2: past, present, and future, TAPPI JOURNAL June 1989
Journal articles
89jun211
Application of dehydrogenase activity for monitoring organisms in paper-machine recirculated backwater systems, TAPPI JOURNAL June 1989
Journal articles
89JUN93
Filtration theory as applied to the dimensioning of flat band washers, TAPPI JOURNAL June 1989
Journal articles
89MAY123
Evaluation and selection of circulating fluidized bed boilers, TAPPI JOURNAL May 1989
Journal articles
Dechlorination and decolorization of high-molecular-weight chlorolignin from bleach plant effluents by an oxidation process, TAPPI JOURNAL September 1989
Dechlorination and decolorization of high-molecular-weight chlorolignin from bleach plant effluents by an oxidation process, TAPPI JOURNAL September 1989
Journal articles
Color reduction studies at a bleached kraft pulp mill, TAPPI JOURNAL, April 1990, Vol. 73(4)
Color reduction studies at a bleached kraft pulp mill, TAPPI JOURNAL, April 1990, Vol. 73(4)
Journal articles
Beating-induced yellowing of tcf- and ecf-bleached pulps alexander, Solutions! & TAPPI JOURNAL, January 2004, Vol. 3(1) (124KB)
Beating-induced yellowing of tcf- and ecf-bleached pulps alexander, Solutions! & TAPPI JOURNAL, January 2004, Vol. 3(1) (124KB)
Journal articles
Magazine articles
Combatting lime kiln ringing problems at the Arauco Constitución mill, TAPPI Journal July 2020
ABSTRACT: The lime kiln at the Arauco Constitución mill experienced severe ringing problems requiring it to be shut down for ring removal every 3 to 6 months. The mill controlled the problems by blasting ring deposits off during operation with its existing industrial shotgun and a newly installed Cardox liquid carbon dioxide (CO2) cartridge system. Various ring blasting procedures were tested to determine the optimum ring location and thickness to blast; the optimum depth to insert the CO2 cartridge into the kiln; and the most effective blasting frequency and sequence to employ. The best strategy was found to be the weekly blasting operation that alternated between the liquid CO2 cartridge and the industrial shotgun, with the CO2 cartridge inserted into the ring mass, 20 cm (8 in.) away from the refractory brick surface, and the shotgun aimed at rings at about 28 m (92 ft) from the kiln discharge end. With each blasting event removing considerably more rings than before, it takes a longer time for rings to rebuild, allowing the kiln to run continuously between annual maintenance shutdowns with only a few short (< 4 h) downtimes for ring removal. This substantially reduces the costs associated with ring removal and lime replacement during unscheduled shutdowns.