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Constant part for a paper machine

A technology of cardboard and tissue paper, applied in the field of devices implementing the method, capable of solving the problems of large space and cost

Inactive Publication Date: 2010-07-21
VOITH PATENT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This is relatively expensive and requires a lot of space

Method used

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  • Constant part for a paper machine
  • Constant part for a paper machine
  • Constant part for a paper machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] In the sizing system of a paper machine, the high-consistency flow 1 consists of fibrous material and filler in a known manner and is combined and mixed according to the settings of the paper machine, that is to say in a predetermined mixing ratio, in a pulp mixing tank 5 .

[0030] The paper machine starts with a headbox 3 and a subsequent forming section 11 for forming a fibrous web 9 . Here, the finished fiber suspension is applied to the forming wire 10 via one or more nozzles of the headbox 3 .

[0031] White water is collected in the forming section 11 and subsequent paper machine units and fed back into the sizing system. The use of white water to form the low-concentration stream 2 is not only economical compared to using fresh water, but also enables re-use of the fibrous material and fillers contained in the white water.

[0032] like figure 1 As shown, the high consistency stream 1 from the pulp mixing tank 5 is diluted in the mixing device 8 with a portion...

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PUM

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Abstract

The invention relates to a method for generating a finished pulp suspension for producing a paper, cardboard, tissue, or other pulp web (1) by mixing at least one high-consistency flow (1) of newly prepared pulp and filler, and at least one low-consistency flow (2), formed of fresh water, white water, or the like, in a machine for producing the pulp web (9). The effort should be thereby reduced, that at least the high-consistency flow (1) is cleaned, and at least one part of the low-consistency flow (2) is mixed into the high-consistency flow (1) only after cleaning the same.

Description

technical field [0001] The invention relates to a method for producing a finished fiber suspension for the manufacture of paper webs, cardboard webs, tissue paper webs or other fibrous webs by mixing in a machine for the manufacture of fibrous webs at least one freshly prepared A high concentration stream of fibrous material and filler is made with at least one low concentration stream of fresh water, white water, or the like. [0002] The invention also relates to a device for producing a fiber suspension for the manufacture of paper webs, cardboard webs, tissue paper webs or other fibrous webs, in particular for carrying out said method, the fiber suspension being composed of at least one A high-consistency stream of freshly prepared fibrous material and fillers and at least one low-consistency stream, preferably consisting of fresh water, white water, etc., are produced in a sizing system of a machine for producing a fibrous web, wherein at least said high-consistency strea...

Claims

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Application Information

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IPC IPC(8): D21F1/08D21F1/66
CPCD21F1/08D21F1/66
Inventor 卡尔-海因茨·贝厄曼欧文·宾德克劳斯·莱雷特马库斯·豪斯勒
Owner VOITH PATENT GMBH