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A method and a device for transferring a tail

A narrow strip and conveying device technology, applied in papermaking, paper machine, wet end of paper machine, etc., can solve the problems of safety hazards, ineffective paper threading strips, etc., and achieve the effect of great chance of success

Active Publication Date: 2009-04-08
ANDRITZ TECH & ASSET MANAGEMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However it has been found that the method of WO02 / 088463 is not effective as to how the tail is moved into position
As a result, the transfer of the web is not always successful, but may have to be tried several times until the tail transfer is successful
In addition, the method of WO 02 / 088463 presents safety hazards, since the manual handling of the tail requires the operator to work dangerously close to the running web and often also to the running wire and rolls

Method used

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  • A method and a device for transferring a tail
  • A method and a device for transferring a tail
  • A method and a device for transferring a tail

Examples

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Embodiment Construction

[0044] Figure 1 shows a pulp production equipment 1 suitable for the production of market pulp, that is, pulp based on cellulose fibers obtained by pulping or bleaching. The pulp production plant 1 includes a first treatment unit in the form of a wet forming table 2 and a second treatment unit in the form of a pulp dryer 4. The slurry of cellulose fibers is fed to the wet forming station 2 from an unshown slurry tank. In the wet forming station 2, the slurry is fed to an unshown forming wire according to a principle known per se, and then transferred to the press liner 6 and then squeezed between unshown press rolls to form a The cellulose-based fiber paper web 8 transferred by the liner 6 is pressed. After the wet forming station 2, the paper web 8 has a dry solid content of approximately 50%. The thickness of the paper web 8 is about 1.5-2.5 mm just after the wet forming station 2. The paper web 8 usually has a width of 3-10 meters. The paper web is then assumed to be transferre...

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Abstract

A device (18) for transferring a tail of a cellulose based fibrous web (8) from a first unit to a second unit comprises a separating member (20) , which is adapted to form a space (95) between a first face (96) of the tail (92) and the first unit, a tail pick up pulley (30) which is adapted to be inserted in said space (95) between the first face (96) of the tail (92) and the first unit, the tail pick up pulley (30) further being adapted for moving the tail (92) into a cutting position, a cutting device being adapted for cutting the tail (92) at said cutting position, and a tail conveyor device being adapted for catching the tail cut at the cutting position, and for forwarding the cut tail (92) to the second unit.

Description

Technical field [0001] The present invention relates to a method of transferring a tail of a cellulose-based fiber paper web from a first processing unit to a second processing unit. [0002] The invention also relates to a device for transferring the threaded strips of the cellulose-based fiber paper web from the first processing unit to the second processing unit. Background technique [0003] When forming and drying a web-forming material such as a cellulose pulp web, the web-forming material is processed in different units. For example, the cellulose pulp production equipment may include: a wet forming station, in which, for example, a slurry of cellulose fibers is processed to form a wet cellulose-based fiber paper web; and a pulp dryer in which the wet paper web is passed to the paper The web is dried by blowing hot air. At start-up, and when the paper web is accidentally broken, the paper web must be transferred from the wet forming station to the dryer. When transferring ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21F7/00D21F1/36
CPCD21G9/0063Y10T83/0548Y10T83/2181
Inventor R·彼得松M·尼伦
Owner ANDRITZ TECH & ASSET MANAGEMENT
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