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Arrangement within yankee cylinder or like roller of paper machine

A technology of Yankee drying cylinder and paper machine, which is applied in paper machine, paper making, textile and paper making, etc. It can solve the problems that cannot completely solve the problem of lint removal, and achieve reliable and very clean effect

Inactive Publication Date: 2005-08-10
METSO PAPER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These publications address some of the issues, but not all of the lint removal issues

Method used

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  • Arrangement within yankee cylinder or like roller of paper machine
  • Arrangement within yankee cylinder or like roller of paper machine
  • Arrangement within yankee cylinder or like roller of paper machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] figure 1 Reference numeral 1 denotes a Yankee dryer whose upper part is completely covered by the half-shrouds 2' and 2" of the shroud 2. Arrow a indicates the air flow directed against the surface of the paper web. The Yankee dryer has a doctor blade 3 makes the paper web break away from the surface of the Yankee dryer. Reference numeral 4 indicates a paper threading device that guides the progress of the paper web 5 and changes the direction of the paper web 5 before the roller 6 if necessary. In order to guide the paper web before the roller 6, it can be Using auxiliary equipment 7, for example figure 1 Blower box and support cylinder shown. Furthermore, different devices such as a calender can be used to treat the paper web. In the machine direction indicated by the arrow 8, the shield 2 is followed by a cover area 9, which is connected at 10 to the shield part 2", where the top surface of the shield part 2" and the top of the cover area 9 The surfaces lie at lea...

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PUM

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Abstract

The invention relates to an arrangement within a Yankee cylinder or the like at the dry end of a paper machine, which arrangement comprises at least a drying cylinder, a hood covering the drying cylinder, web guiding means, and a roller. After the drying cylinder at the dry end of the machine, seen in the machine direction, a covered area which above and on the sides is at least mainly covered extends at least to the area of the roller.

Description

technical field [0001] The invention relates to an arrangement in a Yankee dryer at the dry end of a paper machine, the arrangement comprising at least one dryer cylinder, a shroud covering the dryer cylinder, threading and a roll, in particular In order to improve the runnability, solve the lint problem, thereby reducing the disturbance to the production, and improve the fire safety of the paper machine. Background technique [0002] In a paper machine, a Yankee dryer and a hood connected to the dryer are generally used to dry the paper web. In order to improve the drying effect, high-speed hot air is blown from the hood to the paper web on the surface of the dryer. . The web is freed from the cylinder surface by means of a doctor blade. At this point a large amount of lint comes off the paper, especially soft tissue paper. The paper is passed to the rolls by a mechanical transfer device, during which lint is also shed from the paper. A part of the lint falls on the fin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F5/02D21F5/04D21F5/18D21G9/00
CPCD21F5/182D21F5/044D21F5/042D21G9/0063
Inventor O·拉明佩尔J·莱穆C·莫里尼
Owner METSO PAPER INC
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