Where you are: Home pageYear 2021Issue (145) → Article:
AAA     ENG | POL

Intensification of Press Felt Dewatering for Tissue Machines

Research and development

Author:

  • Reczulski Mariusz
    Institute of Papermaking and Printing, Lodz University of Technology, Łódź, Poland

Nr DOI: 10.5604/01.3001.0014.5053

Download... PDF
Full text
Download... PDF
references

Abstract:

This article describes a method of dewatering press felts using a blow-through device. The essence of this method is pressing out free water contained in the felt with unheated air at a slight overpressure. The usefulness of this method for various types of felt used in tissue machines was tested. The results showed that the effectiveness of this process depends mainly on the proper selection of the pressure difference on both sides of the dewatering felt and of the blow-through time (dwell time). The increase in the dryness of felts dewatered by means of the air blow-through method is closely related to the structure and contamination of the felt. In the second part of the study, the felts were additionally dewatered using a suction chamber with a vacuum of 20 kPa. Unfortunately, the increase in the dryness of the felts by means of a vacuum was not very high, only up to 2.8%.

Tags:

fibrous materials, press felt dewatering, air blow-through, paper machine.

Citation:

Reczulski M. Intensification of Press Felt Dewatering for Tissue Machines. FIBRES & TEXTILES in Eastern Europe  2021; 29, 1(145): 92-97. DOI: 10.5604/01.3001.0014.5053

Published in issue no 1 (145) / 2021, pages 92–97.

CONTACT:

FIBRES & TEXTILES
in Eastern Europe
ul. Skłodowskiej-Curie 19/27,
90-570 Łódź, Poland
tel. (48-42) 638-03-14
e-mail: infor@ibwch.lodz.pl
ftee@ibwch.lukasiewicz.gov.pl

EDITORIAL OFFICE
ul. Skłodowskiej-Curie 1927, 90-570 Łódź, Poland • tel.  (48-42) 638-03-14 • e-mail: infor@ibwch.lodz.plhttp://www.fibtex.lodz.pl

EDITORIAL DEPARTMENT
Editor-in-Chief Emilia Jaszczurska-Niedźwiedzka, V-ce Editor-in-Chief Marta Cyrczak, Text Editor Geoffrey Large, Assistant Editor Anna Wahl, Typesetting and Printed at Media-Press • Production IBWCh

facebook