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Language: English
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Supplemental and Recycled Fiber Series (Details)Includes 13 courses for $499/year. Pulping Library (Details)Includes 72 courses for $1,499/year.
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Training Time: 22 minutes
Compatibility: Desktop, Tablet, Phone
Based on: Industry Standards and Best Practices
Languages: English
Wood fiber accounts for more than 90% of the raw material used in the production of paper and board products, and it can come from a variety of sources. These sources can be slushed virgin fiber that is produced onsite, market pulp from other pulp mills, or recycled/secondary fiber. In the "recycled" fiber category, the most difficult source to process is post-consumer waste. This fiber arrives at the mill contaminated with a variety of undesirable materials. This course will focus on how the fibers are cleaned and separated from the contaminants using the two categories of physical separation: centrifugal cleaning and screening.
Supplemental and Recycled Fiber - Fiber Deinking
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Supplemental and Recycled Fiber - Fiber Fundamentals
Supplemental and Recycled Fiber - Fiber Prep and Screening
Supplemental and Recycled Fiber - Recycling Fiber Overview
Supplemental and Recycled Fiber - Rejects Handling
The following key questions are answered in this module:
In a recycled fiber plant, where does the first separation of contaminants and fiber take place?The first contaminant separation process happens in the repulper.
What are the physical principles on which centrifugal cleaners are based?Rotational motion, centrifugal force and specific gravity differences between fiber and contaminants are the principles on which centrifugal cleaners are based.
What are the physical principles that pressure screens use to clean fibers?Pressure screens clean based primarily on the size difference between fibers and contaminants.
What is the benefit of a cascade cleaner system?Cascade cleaner systems use multiple stages of cleaners to improve overall contaminant removal efficiency and to minimize fiber losses.
What is the difference between forward and reverse cleaners?Forward cleaners are designed to reject materials that are more dense than fibers, reverse cleaners are designed to reject materials less dense than fibers.
Below is a transcript of the video sample provided for this module:
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