Method and apparatus for transferring fiber web from a support fabric to another

A fiber web, fiber web machine technology, applied in textiles and papermaking, papermaking, dryer sections, etc., can solve problems such as increasing the wear contact length, and achieve the effect of reducing risks

Active Publication Date: 2011-02-23
METSO PAPER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cover of the suction box is extended in the machine direction, which increases the length of the wear contact

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
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  • Method and apparatus for transferring fiber web from a support fabric to another
  • Method and apparatus for transferring fiber web from a support fabric to another
  • Method and apparatus for transferring fiber web from a support fabric to another

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] figure 1 Shown is a partial view of the press section of a paper machine with means for transferring a fibrous web from one part of the press section to another according to the prior art and as described in US Patent No. 5,888,354. The press section shown in this figure comprises a first press 10 and a second press 20 . In the figure, a first press is represented by its shoe roll 12 and counter roll 14, in which the web W passes through the first press between two fabrics 32 and 34 Runs from left to right. The first felt 32 is encircling, enclosing the fabric guide roll 16 and enclosing the shoe roll 12, the first felt in this embodiment moves in the manner shown in the figure and runs further upwards. The second felt 34 then runs on the back pressure roll 14 . The web W is detached from the first felt 32 by means of a transfer suction box 18 in the path between the back pressure roll 14 and the fabric guide roll 16 . Thereby, the suction force of the suction box 1...

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PUM

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Abstract

Invention relates to a method of transferring a fiber web from a first support fabric (44; 46; 52; 66) to a second support fabric (46; 52; 66), in which method the fiber web (W) is brought close to the location of a suction device (48; 56; 68) on the surface of the first support fabric, the fiber web is detached by the suction device from the first fabric from the opposite side with respect to the suction device and transferred further on surface of the second support fabric on the suction device side. The area of a closing gap (G) of a guide roll (50; 54; 70) on the opposite side with respect to the fiber web (W) is subjected to the suction of the suction device (48; 56; 68) and the fiber web W is detached from the support fabric (44; 46; 52) on the guide roll (50; 54; 70) side before the guide roll (50; 54; 70). Invention relates also to an apparatus for transferring fiber web.

Description

technical field [0001] The invention relates to a method of transferring a fibrous web from a first support fabric to a second support fabric according to the preamble of claim 1 . The invention also relates to a device according to the preamble of claim 7 . [0002] Thus, the present invention relates to the transfer of a fibrous web from one support fabric to another. Thus, the method and device according to the invention are suitable, for example, for transferring a web from a wire section to a press felt, and from a press to a dryer section. In particular, the method and device described above are suitable for transferring a web from a first support fabric to a second support fabric in a paper or board machine. Background technique [0003] Methods and apparatus for transferring a paper web according to the prior art are discussed in detail below with reference to an exemplary press section of a paper machine. Today, the press section after the wire section most commo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21F1/52D21F3/04D21F2/00D21G9/00
CPCD21F3/045D21F1/523D21F2/00D21G9/0063D21F3/00D21F5/00
Inventor 卡勒·希尔韦莱彼得·洪卡兰皮
Owner METSO PAPER INC
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