Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Arrangement in connection with the press section of a web-forming machine

A forming machine and press section technology, applied in the press section, paper machine, calender, etc., can solve the problems of reduced web whiteness, opacity, web delamination, etc., to improve surface quality and initial smoothness , effective drying effect

Inactive Publication Date: 2009-06-24
METSO PAPER INC
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can cause web delamination
In addition, the brightness and opacity of the web may decrease and the web may stick to surfaces, such as the surface of a roll

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Arrangement in connection with the press section of a web-forming machine
  • Arrangement in connection with the press section of a web-forming machine
  • Arrangement in connection with the press section of a web-forming machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] Figures 1a-2b Some equipment related to the press section of a web forming machine according to the invention is shown. The apparatus comprises at least one press nip 10 for dewatering a web 11 produced on a web forming machine. exist Figure 1a , actually has three press nips. The plant also comprises a smoothing press 12 comprising smoothing rolls 13 . Smooth rolls 13 are arranged after the press nip 10 . When reaching the smoothing press, before the can dryer section, the dry matter content of the web is above 45%, preferably above 55%. According to the invention, the smoothing press 12 also comprises a smoothing heating carrier 14 ′, such as a belt 14 . Preferably, the band is partly or completely made of metal. This metal strip is smooth and has no void volume for moisture removal. The belt 14 is arranged as a loop around at least two guide rollers 15 . The smoothing roller 13 is then arranged in contact with the belt 14 between two guide rollers 15 . Thus...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an arrangement in connection with the press section of a web-forming machine. The arrangement includes at least one press nip (10) for dewatering the web (11) manufactured on a web-forming machine. The arrangement also includes a smoothing press (12) including a smoothing roll (13) arranged after the press nip (10). The smoothing press (12) includes smooth heat carrying means (14') arranged as a loop around at least two guide rolls (15). The smoothing roll (13) is arranged into contact with the means (14') between two guide rolls (15). The smoothing roll (13) and / or at least one of the guide rolls (15) is a deflection compensated roll.

Description

technical field [0001] The invention relates to an apparatus associated with the press section of a web forming machine, comprising: at least one press nip for dewatering the web produced on the web forming machine, and smoothing press means, comprising Smoothing rolls after the nip. Background technique [0002] In the press section of a web forming machine, large amounts of water are rapidly removed from the web. The press section usually has one or two press nips and also applies a press felt. The press nip is formed by two rolls arranged to be loaded against each other. [0003] The rapid dehydration densifies the surface of the same side of the web that was dehydrated. At the same time, there occurs a phenomenon that the oil absorption rate decreases, and the printing quality is degraded. In order to avoid these problems, a smooth press device is installed after the press section. Traditionally, smoothing presses consist of two rolls forming the nip. Thus, the web...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): D21F3/02D21F3/08
CPCD21F3/045D21G1/0066D21F5/04D21F5/18D21F3/0281
Inventor 卡里·雷伊塞宁彼得·洪卡兰皮
Owner METSO PAPER INC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com