[PDF][PDF] Rate-limiting mechanisms of water removal during the formation, vacuum dewatering, and wet-pressing of paper webs: A review

MA Hubbe, B Sjöstrand, L Nilsson, A Koponen… - …, 2020 - academia.edu
Because some of the critical events during the removal of water before the dryer section on a
paper machine happen very rapidly within enclosed spaces–such as wet-press nips–there …

[PDF][PDF] A historical perspective of scientific advances in paper forming hydrodynamics: 1950-2000

J Zhao, RJ Kerekes - BioResources, 2017 - bioresources.cnr.ncsu.edu
Since the invention of paper in China 2000 years ago, enormous advances have taken
place in papermaking. Forming of paper from a suspension of fibres has progressed from a …

Mechanical modelling of blade forming and drainage of flocculated suspensions

C Holmqvist - 2005 - diva-portal.org
A method has been developed for flexible modelling of multi-component twinwire blade
formers. Features such as suction devices, loadable blades, curved blades, and partial …

[PDF][PDF] 制浆造纸科学的方程范例: 含义及其应用

赵汝和, 张美云 - China Pulp & Paper, 2021 - researchgate.net
本文介绍了制浆造纸科学中用于预测主要参数对产品和工艺过程影响的方程范例.
一些方程是很久以前由其他学科导出的, 沿用于制浆造纸工程技术; 另一些方程是制浆造纸研究 …

[图书][B] Multilayering of fine paper with 3-layer headbox and roll and blade gap former

A Puurtinen - 2004 - aaltodoc.aalto.fi
The aim of this study was on the layering of fine paper with a 3-layer headbox and roll blade
gap former. It consisted of methodological development and laboratory scale studies, as well …

Modelling of the pressure distributions in twin-wire blade formers

C Holmqvist - 2002 - diva-portal.org
During papermaking, the internal structure of the fibre network constituting the paper is to a
dominating extent determined in the forming zone of the paper machine. This thesis is aimed …

Viscous flow of a Newtonian fluid in a curved channel with flexible moving porous walls

DM Martinez, DJ Seo, J Jong - Chemical engineering science, 2008 - Elsevier
We consider flow of a viscous Newtonian fluid in a curved channel with moving porous
walls; the upper wall is flexible and its position in unknown a priori. This work is motivated …

Rozwój konstrukcyjny dwusitowych urządzeń formujących

M Reczulski - Przegląd Papierniczy, 2012 - infona.pl
Formowanie między dwoma sitami, w porównaniu z formowaniem wstęgi papieru na
maszynie płaskositowej, zapewnia lepsze odwodnienie i formowanie wstęgi. Jest to …

[PDF][PDF] Measurements of pressure pulses from blades in a gap former

RW Gooding, JD McDonald, A Rompré… - Paptac 90th Conf …, 2004 - researchgate.net
Pressure forces are applied in the forming section of a paper machine to drain the fibre
suspension and form a consolidated fibre mat. At the same time, these forces redistribute the …

Hydrodynamics of blade gap formers

A Roshanzamir - 2000 - open.library.ubc.ca
In blade gap forming in papermaking, a headbox discharges a pulp suspension into a gap
between two moving permeable fabrics under tension. As these fabrics wrap around fixed …