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Journal articles
A guide to developing a best management practices (bmp) plan for spent liquor - part 1, TAPPI JOURNAL, October 1999, Vol. 82(10)
A guide to developing a best management practices (bmp) plan for spent liquor - part 1, TAPPI JOURNAL, October 1999, Vol. 82(10)
Journal articles
Troubleshooting gear drives, TAPPI JOURNAL, October 1999, Vol. 82(10)
Troubleshooting gear drives, TAPPI JOURNAL, October 1999, Vol. 82(10)
Journal articles
Pressure screening: changes in pulp properties in the screen basket, TAPPI JOURNAL, October 1999, Vol. 82(10)
Pressure screening: changes in pulp properties in the screen basket, TAPPI JOURNAL, October 1999, Vol. 82(10)
Journal articles
NMR studies, part 5: nature of residual lignin in kraft pulps, TAPPI JOURNAL, September 1999, Vol. 82(9)
NMR studies, part 5: nature of residual lignin in kraft pulps, TAPPI JOURNAL, September 1999, Vol. 82(9)
Journal articles
Impulse drying: status of the pilot-scale research program, TAPPI JOURNAL, September 1999, Vol. 82(9)
Impulse drying: status of the pilot-scale research program, TAPPI JOURNAL, September 1999, Vol. 82(9)
Journal articles
Black liquor gasification - a comprehensive update, TAPPI JOURNAL, September 1999, Vol. 82(9)
Black liquor gasification - a comprehensive update, TAPPI JOURNAL, September 1999, Vol. 82(9)
Journal articles
A financial analysis of north american pulp, paper and packaging firms, TAPPI JOURNAL, September 1999, Vol. 82(9)
A financial analysis of north american pulp, paper and packaging firms, TAPPI JOURNAL, September 1999, Vol. 82(9)
Journal articles
Pulp refiner trial tips, TAPPI JOURNAL, September 1999, Vol. 82(9)
Pulp refiner trial tips, TAPPI JOURNAL, September 1999, Vol. 82(9)
Journal articles
Effect of composition on the first melting temperature of fireside deposits in recovery Boilers, TAPPI JOURNAL, September 1999, Vol. 82(9)
Effect of composition on the first melting temperature of fireside deposits in recovery Boilers, TAPPI JOURNAL, September 1999, Vol. 82(9)
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.