Search
Use the search bar or filters below to find any TAPPI product or publication.
Filters
Content Type
Publications
Level of Knowledge
Collections
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
Leveraging mill-wide big data sets for process and quality i
Authors: Jianzhong Fu and Peter W. Hart | ABSTRACT: The MWV mill in Covington, VA, USA, experienced a long term trend of increasing episodes of paper indents that resulted in significant quantities of internal rejects and production downtime. When traditional troubleshooting techniques failed to resolve the problem, big data analysis techniques were employed to help deter-mine root causes of this negative and increasingly frequent situation. Nearly 6000 operating variables were selected for a deep dive, multi-year analysis after reviewing mill-wide process logs and 60000+ PI tags (data points) collected from one of the major data historian systems at the MWV Covington mill. Nine billion data points were collected from November 2011 to August 2014. Strategies and methods were developed to format, clean, classify, and sort the various data sets to compensate for process lag time and to align timestamps, as well as to rank potential causes or indicators. GE Intelligent Platforms software was employed to develop decision trees for root cause analysis. Insights and possible correlations that were previously invisible or ignored were obtained across the mill, from pulp-ing, bleaching, and chemical recovery to the papermaking process. Several findings led the mill to revise selected process targets and to reconsider a step change in the drying process. These changes have exhibited significant impacts on the mill’s product quality, cost, and market performance. Mill-wide communications of the identified results helped transform the findings into executable actions. Several projects were initiated.
Journal articles
Magazine articles
RISI's North American CEO of the Year, Paper360º November/De
RISI's North American CEO of the Year, Paper360º November/December 2016
Journal articles
Magazine articles
TAPPI Journal Summaries, Paper360º May/June 2018
TAPPI Journal Summaries, Paper360º May/June 2018
Journal articles
Magazine articles
Metsä Group’s Äänekoski Bioproduct Mill: At the Heart of the Bioeconomy, Paper360º November/December 2018
Metsä Group’s Äänekoski Bioproduct Mill: At the Heart of the Bioeconomy, Paper360º November/December 2018
Journal articles
Magazine articles
The PPI Top 100, Paper360º September/October 2017
The PPI Top 100, Paper360º September/October 2017
Journal articles
Magazine articles
Papermaking Best Practices With Vacuum-Dewatering Systems: P
Papermaking Best Practices With Vacuum-Dewatering Systems: Part 1, Paper360º September/October 2017
Journal articles
Magazine articles
TAPPI JOURNAL Summaries, Paper360º September/October 2017
TAPPI JOURNAL Summaries, Paper360º September/October 2017
Journal articles
Magazine articles
Stora Enso Imatra Mills: Going With the Flow, Paper360º March/April 2019
Stora Enso Imatra Mills: Going With the Flow, Paper360º March/April 2019
Journal articles
Magazine articles
Facing the Market, Paper360 May/June 2019
Facing the Market, Paper360 May/June 2019