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Drying device

A drying device and drying technology, which is applied in the field of drying devices of machines, can solve the problems of laboriousness and easy failure of fibers.

Inactive Publication Date: 2011-07-06
VOITH PATENT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The transfer of the fiber web is trouble-prone and laborious

Method used

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Examples

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Embodiment Construction

[0030] The drying device has a plurality of drying units, in which the fibrous web 1 is supported by a drying wire 2 of the respective drying unit and alternately meanders through heated drying cylinders 3 and suctioned guide rollers 4 .

[0031] The drying cylinder 3 is located in the upper row of the drying unit and is located on the lower side of the fiber web 1 , and the guide roller 4 is located in the lower row of the drying unit and is located on the upper side of the fiber web 1 . The air-permeable drying wire 2 presses the fibrous web 1 against the hot outer surface of the drying cylinder 3 and facilitates the heat transfer to the fibrous web 1 .

[0032] The drying unit comprises a plurality of transfer units 11 , 12 arranged in series, each of which has a strip sensor 7 and a separating device 8 immediately behind it at its start.

[0033] For the transfer, the narrow transfer strip of the fibrous web 1 passes through the drying device on the guide side. After a su...

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Abstract

The present invention relates to a drying device of a machine for preparing and / or thermal-refining a fibrous web (1), wherein the fibrous web (1) used for drying is transferred through heated drying cylinders (3) and guide rollers (4). Transferring the fibrous web (1) can become more quickly and more reliably through the following steps: the drying device includes a plurality of successive transfer sections, wherein each transfer section is respectively provided with at least a strip sensor (7), a transfer aid (6) and a separator (8) which directly follows the strip sensor (7). The strip sensor (7), the transfer aid and the separator are connected to a a controller (10). On detecting a fault in the transfer operation, the strip sensor (7) of a transfer unit (11, 12) activates the separator (8) of the previous transfer unit, via the controller (10). Furthermore, the present invention relates to a method of transfering a transferstrip of a paper web, a paperboard web, a fabric web and the like through the drying device.

Description

field of invention [0001] The invention relates to a drying device for a machine for preparing and / or conditioning a fibrous web, in which the fibrous web to be dried is transported via heated drying cylinders and guide rolls, wherein the drying device has several A strip sensor for detecting the transfer strip of the fibrous web, a plurality of transfer aids for guiding the transfer strip and a plurality of separating devices for separating the transfer strip. [0002] The invention also relates to a method for transferring a transfer strip of a fibrous web through a drying device of a machine for preparing and / or conditioning a fibrous web, in which device the fibrous web for drying is passed through heated drying cylinders and guide rolls Conveying, wherein the drying device can have a plurality of strip sensors for detecting the transfer strip and a plurality of transfer aids for guiding the transfer strip and a plurality of separating devices for separating the transfer s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F26B13/12
CPCD21F7/04D21G9/0063
Inventor 彼得·卡尔沃纳·戈贝尔
Owner VOITH PATENT GMBH
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