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Method and arrangement in tail threading of a web in the dryer section of a fiber web machine

A fiber web machine and dryer technology, used in papermaking, papermaking, textiles and papermaking, etc., can solve the problems of tail threading uncertainty, insufficient description of technical personnel, damage to valuable equipment and equipment in papermaking machines, etc.

Inactive Publication Date: 2013-02-13
METSO PAPER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method according to this patent may be able to be used on some machines, but this has not even been tried as disclosed, because the tail tie is not described in more detail in this patent, in other words, the description is not available to those skilled in the art. words are not enough
The problem is uncertainty about successful tail threading and possible damage to paper machine clothing and equipment

Method used

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  • Method and arrangement in tail threading of a web in the dryer section of a fiber web machine
  • Method and arrangement in tail threading of a web in the dryer section of a fiber web machine
  • Method and arrangement in tail threading of a web in the dryer section of a fiber web machine

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Experimental program
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Embodiment Construction

[0025] figure 1 A conventional fiber web machine 18 is shown viewed from the side. The fiber web machine 18 comprises (as a continuous partial entity) a forming section 10 , a press section 12 , a drying section 14 and a finishing section 16 . according to figure 1 In the fiber web machine of , the finishing section only consists of machine rolls. The method and apparatus of the present invention are designed for tail threading in the dryer section 14 of a fiber web machine 18 using only an above-located single fabric run 20 . The drying section 14 includes a continuous drying cylinder bank 38 according to figure 1 There are 9 dryer groups 38 in the fiber web machine. Dryer groups 38 are identified individually by symbols R1-R9. Advantageously, the web is full width during tail threading.

[0026] In the tail threading of the web 34 in the dryer section 14, figure 1 The fiber web machine 18 shown can have a device 28 according to the invention shown in FIG. 2 . figure ...

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Abstract

The invention relates to a method in tail threading in the dryer section of a fiber web machine including successive dryer groups (38). The dryer group (38) includes dryer cylinders (22), turning rolls (24), vacuum boxes (62), one dryer fabric (26) traveling as single fabric run (20) via the dryer cylinders (22) and the turning rolls (24), and in tail threading of the web (34) the end (42) of the web (34) is led at full width through the dryer section (14). In addition, on the side of an opening gap (32) formed by a dryer cylinder (22) and the dryer fabric (26), the full width web (34) is blown off from the dryer cylinder (22), at least at the edges (33, 35) of the web (34). The invention also relates to a corresponding arrangement (28).

Description

technical field [0001] The invention relates to a method for tail threading of a web in the dryer section of a fiber web machine comprising a continuous dryer group comprising: [0002] - drying cylinder; [0003] - steering rollers; [0004] - Vacuum box; [0005] - a dryer section fabric traveling as a single fabric run via drying cylinders and turning rolls; and [0006] - In tail threading of the web, the end of the web passes through the dryer section at its full width. [0007] The invention also relates to a corresponding device. Background technique [0008] A single fabric dryer section is usually used as the dryer section of a fiber web machine. In the single fabric dryer section, tail threading of the web is usually done using the threaded tail of the web, the tail. However, problems are sometimes encountered in the guidance of the tail and especially in the formation of the tail. Additionally, when tail threading of the web is accomplished with a tail, equ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F7/00D21G9/00
CPCD21G9/0063D21F7/00
Inventor 卡里·尤皮韦利-佩卡·科尔琼恩安蒂·科穆莱宁帕沃·西尔维厄
Owner METSO PAPER INC