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Method and device for winding a fibrous web

A technology of fiber web and winding device, which is applied in the field of paper web and cardboard web, paper web and cardboard web, and can solve problems such as not being cost-effective

Inactive Publication Date: 2015-11-25
VALMET TECH OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This approach is not cost-effective in terms of energy consumption

Method used

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  • Method and device for winding a fibrous web

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] In the schematic example according to the figures, the parent roll 10 is on the unwinding section from which the full-width web W unrolled from the parent roll 10 is guided to the slitting section by means of guide rollers 11 . For the sake of clarity, slitting means, such as slitting blades, lasers or water jet slitting tools, have been omitted from the examples of the figures, but in slitting the web W is slit longitudinally into partial webs W1...Wn , with six (6) partial webs in the example of the drawing. The figure shows that the full width web W becomes a partial web W1...Wn at the point of the slitting. Starting from slitting, the partial webs W1...Wn are guided via guide rollers further towards winding rollers 12, 13 and to the first winding roller 12 on which the second partial web W2... W6 is wound to partial web rolls R2...R6 via the first winding roll 12 and leads each second partial web W1...W5 to the partial web rolls R1...R5 via the second winding roll....

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Abstract

The invention relates to a method for winding fiber webs, particularly paper and board webs, in which method, partial web rolls (R1...Rn) are wound in a winding device, where partial webs (W1...Wn) are guided to rolls (R1...Rn) via a nip between a winding roll (12; 13) and the rolls (R1...Rn). In the method, substantially all partial webs (W1...Wn) are guided to the first winding roll (12) and substantially every second partial web (W1...W5) is guided to the second winding roll (13). The invention also relates to a device for winding fiber webs, particularly paper and board webs, which device comprises a winding roll (12; 13) for winding partial webs (W1... Wn) into partial web rolls (R1...Rn) via a nip between the winding roll (12; 13) and the roll being formed (R1...Rn). The device comprises the first winding roll (12), via which substantially all partial webs (W1...Wn) are arranged guidable, and the second winding roll (13), to which substantially every second partial web (W1...W5) is arranged guidable.

Description

technical field [0001] The invention relates to a method for winding a fibrous web, especially a paper and board web, in which a partial web roll is wound in a winding device, wherein the partial web roll is connected to the roll via a winding roll The nip between is guided onto the roll. [0002] The invention also relates to a device for winding a fibrous web, especially a paper and board web, comprising means for winding a part of the web through the nip between the winding roll and the roll being formed. to the winding roll in the partial web roll. Background technique [0003] As is known, fibrous webs (for example paper) are produced in many machines which together constitute paper production lines several hundred meters long. Modern paper machines are capable of producing over 450,000 tons of paper per year. The speed of the paper machine can exceed 2000 m / min and the width of the paper web can be greater than 11 meters. [0004] In a paper production line, paper ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H18/20B65H19/22
CPCB65H19/2284B65H2301/41466B65H2301/4148B65H2301/41486B65H2403/92B65H18/26B65H19/22B65H2220/09B65H18/145B65H18/16
Inventor 亚尔莫·马尔米
Owner VALMET TECH OY