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Method and machine for manufacturing a fibrous material web

A fiber material and machine technology, applied in the field of pressing devices, can solve the problems of high energy consumption, production speed and output limitation, and achieve the effect of improving residence time, reliable and stable operation, and optimizing water absorption

Inactive Publication Date: 2020-03-24
VOITH PATENT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The result is high energy consumption due to thermal drying of the web in the area of ​​the drying cylinder
Furthermore, production speed and output are limited by this

Method used

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  • Method and machine for manufacturing a fibrous material web
  • Method and machine for manufacturing a fibrous material web
  • Method and machine for manufacturing a fibrous material web

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] figure 1A simplified schematic representation of a first embodiment of the machine 1 according to the invention is shown. A machine 1 for producing a fibrous web 2, in this case a tissue web 2, comprises a forming area with a forming roll 5 and an inner belt 4 which at least partially encloses the forming roll together with the outer belt 3 5. The headbox 6 introduces the fiber suspension between the belts 3, 4 (ie the inner belt 3 and the outer belt 4). In order to form the tissue web 2, in the region of the forming roll 5, the fiber suspension is dewatered mainly in the common wrapping region of the belts 3, 4 and is guided, supported on the inner belt 4, to the subsequent press 7 and through the pressing device 7 . The press device 7 comprises in this example an upper press roll 8 and a lower counter roll 9 which cooperate to create a press nip 24 for further dewatering of the tissue web 2 . Counter roll 9 and press roll 8 can also be arranged inversely. The cou...

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PUM

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Abstract

The invention relates to a machine (1) for producing a fibrous material web (2), in particular a tissue paper web, having a forming region which comprises a forming roll (5) and a permeable inner belt(4) in order to produce the fibrous material web (2), the inner belt (4) at least partially surrounding the forming roll (5) together with an outer belt (3), and the outer belt (3) surrounding the forming roll. The machine (1) further comprises a press device (7) following the forming region for further dewatering the fibrous web (2) in a press nip (24), the fibrous material web (2) being guidedbetween the inner belt (4) and a lower press belt (11) through the press nip (24), the machine (1) further comprising a subsequent drying cylinder (14), the fibrous material web (2) is guided from theforming region to the heated surface of the drying cylinder (14) so as to be supported on the inner belt (4). The machine (1) according to the invention is characterized in that the inner belt (4) isstructured in order to structure the fibrous material web (2), and in that a transfer roller (13) is designed as a shoe roller in order to produce an extended transfer nip (12).

Description

technical field [0001] The invention relates to a machine for producing a fibrous web, in particular a tissue web, having a forming zone comprising forming rolls and a permeable inner belt for producing a fibrous web, said inner belt being at least Wrapping the forming roll partly together with the outer belt, the machine also has a pressing device next to the forming area, the pressing device comprising a pressing nip consisting of a pressing roll and a mating roll, the pressing nip For further dewatering of the fibrous web, wherein the press nip is the first press nip of a press device, wherein the fibrous web is guided past between the inner belt and the lower press belt A press nip, the machine also having a drying cylinder adjoining the press, wherein the fibrous web is passed from the forming zone to the transfer nip or transfer nip formed for transfer between the transfer roll and the drying cylinder The fibrous web is guided so as to lie on the inner belt, and the fib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21F1/00D21F3/08D21F5/00
CPCD21F1/00D21F3/08D21F5/004D21F3/045D21F5/181D21F11/006D21F11/14D21F3/0227D21F3/029D21F3/10D21F7/008D21F9/02D21H27/002
Inventor C.彭蒂多J.伯格斯特伦
Owner VOITH PATENT GMBH
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