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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
The top five reasons software projects fail (and how Extreme
The top five reasons software projects fail (and how Extreme Programming mitigates them), Solutions!, Online Exclusives, August 2004
Journal articles
The effect of roller taper on webs, TAPPI JOURNAL November 2012
The effect of roller taper on webs, TAPPI JOURNAL November 2012
Journal articles
From tree cutting to pulping: the impact of storage time on pulp mill economics, TAPPI JOURNAL November 2012
From tree cutting to pulping: the impact of storage time on pulp mill economics, TAPPI JOURNAL November 2012
Journal articles
Differences in bleaching responses from fungal- versus bacterial-derived enzymes, TAPPI JOURNAL March 2012
Differences in bleaching responses from fungal- versus bacterial-derived enzymes, TAPPI JOURNAL March 2012
Journal articles
Reductive degradation of residual chromophores in kraft pulp with sodium dithionite, TAPPI JOURNAL March 2012
Reductive degradation of residual chromophores in kraft pulp with sodium dithionite, TAPPI JOURNAL March 2012
Journal articles
Two-sided drainage handsheet machine, TAPPI JOURNAL May 2012
Two-sided drainage handsheet machine, TAPPI JOURNAL May 2012
Journal articles
Magazine articles
TAPPI Journal Summaries, Paper360º January/February 2020
TAPPI Journal Summaries, Paper360º January/February 2020
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.