Tensioning devices and guides | Voith
SensoTension LC measures the exact tension of clothing in the wire, press and dryer section. Control signals are present to directly guide the tensioning device and therefore ensure constant belt tension. Unlike conventional belt force sensors, SensoTension LC is dual-channel in its design and thus ensures a constant tension for your paper machine.
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Efficient wet pressing with OptiPress press section| Valmet
The task of the paper machine press section is to remove water, primarily through wet pressing. Wet pressing increases sheet dryness in order to ensure adequate paper machine drying capacity and to improve web runnability at the beginning of the dryer section. The press section also has a major impact on sheet surface properties such as ...
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Papermaking PAPERMACHINE – PRESSING 1. INTRODUCTION
Pressing of the web on the paper machine follows ... (Wahlstrom, 1969). The dewatering capacity of a press section and the properties of paper depend on the design and the number of nips. The risk of web breaks is determined by the general design of ... Phase-4 Both paper and felt are exposed in this phase and the paper
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Toscotec | Products - Paper&Board machines: Press section
Paper machine press section represent a key area for rebuilds to improve quality of the paper and energy savings. With its latest press section designs and references, Toscotec has focused on ease of operation and overall plant efficiency. Solutions have been developed on various grades to reduce free draws, paper breaks, and of course increase ...
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Felt press machine models for manufacturing paper - YouTube
Sep 26, 2016· Felt press machine models for manufacturing paper. ... Fourdrinier paper machine forming section - Duration: 1:46. TDM Paper Machine 9,700 views. 1:46. Acrylic Felt vs Wool Felt ...
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8 Paper Machine Troubleshooting - AstenJohnson
paper machine. Although it is difficult to list all possible causes for all machine types, these lists can be used to provide guidance in troubleshooting most equipment. 8 1 Forming Section Troubleshooting Guide Symptom Areas to Consider Barring • Condition of rolls (vibration) • Seals on couch roll • Vibration on all machine elements
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Paper Machine Design and Operation--Descriptions and ...
"Paper Machine Design and Operation--Descriptions and Explanations" By Gunnar Gavelin Seamed Press Felts 139 Felt Suction Boxes 140 High-Pressure Showering 140 Cost of Paper Machine Clothing 140 5.18 Vacuum Pumps 140 Water-Ring Vacuum Pump 140 Water-Ring Pump Heat Recovery 141 Turbo Compressor 142 5.19 Pressi ng and Paper Quality 143 Shadow ...
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Papermaking PAPERMACHINE – DRYING Introduction
On a paper machine, drying is accomplished by passing the web ... and has a felt or fabric threaded in it to press the paper on to the hot rolls, as shown in Figure 4. ... However, only one side of the paper is heated, and therefore a section with dryers on the bottom .
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Voith | Press section
The higher the dry content of the paper web after leaving the press section, the less energy has to be expended in subsequent drying. A high initial wet strength of the moist paper web after leaving the press also leads to a lower number of breaks, especially in the first dryer groups.
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Roles of Press Felt in Press Section of Paper Machine
The functions required of press felt for paper machines are mainly water removal, web conveyance, and paper surface finish. The water removal performance of felts is closely related to steam consumption during the paper drying process and is a very important factor in determining energy consumption costs.
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Roles of press felt in press section of paper machine ...
The functions required of press felt for paper machines include water removal, web conveyance, and paper surface finish. The water removal performance of felts is closely related to steam ...
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Feltest Equipment BV
Forming fabrics, press felts, dryer screens - Paper Machine Clothing is yet another variable in a paper machine. Even assessing the performance of a trial can be a hard job. Feltest offers the tools and the knowledge you need to get the best of your Paper machine Clothing.
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