2024
DOI: 10.15376/biores.19.2.2404-2416
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Understanding the limits of a screening operation. Part 1: Characterization of screen plugging

Miguel E. Villalba,
James A. Olson,
D. Mark Martinez

Abstract: Pressure screening is a critical step in the production of high-quality paper. In efforts to meet sustainable market demands, mill operators are forced to push the limits of screening operation to the point where plugging becomes a recurrent issue. This two-part study provides insights into the limits of screening operations. In the first part, some published imaging data was analyzed to delve into the plugging mechanisms. The observed hysteresis and intermittency were measured by image processing techniques, … Show more

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Cited by 1 publication
(2 citation statements)
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“…However, as the rotor speed was decreased, the distribution shifted away from the Gaussian form with the fluctuations increasing prior and during plugging. Following from part one (Villalba et al 2024), the change in the distribution was quantified using the kurtosis. The distributions of the water and pulp data in the operational regime (see Fig.…”
Section: Application Of the Prediction Tool For Pluggingmentioning
confidence: 99%
See 1 more Smart Citation
“…However, as the rotor speed was decreased, the distribution shifted away from the Gaussian form with the fluctuations increasing prior and during plugging. Following from part one (Villalba et al 2024), the change in the distribution was quantified using the kurtosis. The distributions of the water and pulp data in the operational regime (see Fig.…”
Section: Application Of the Prediction Tool For Pluggingmentioning
confidence: 99%
“…This article is part two of a two-part study investigating the limits of screening operations. Part one focused on characterizing the plugging mechanisms occurring in the limits of operation (Villalba et al 2024). Particularly, it elucidated an increased intermittency as a precursory mechanism to screen failure.…”
Section: Introductionmentioning
confidence: 99%