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Runnability component and method for drying a paper web

A drying section and component technology, applied in the dryer section, paper making, paper machine, etc., can solve the problem that the turning roll is not optimal

Inactive Publication Date: 2013-06-26
VALMET TECH OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, deflection rolls, which are designed to cooperate with the suction box, are not optimal for cooperating with the blow box

Method used

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  • Runnability component and method for drying a paper web
  • Runnability component and method for drying a paper web
  • Runnability component and method for drying a paper web

Examples

Experimental program
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Embodiment Construction

[0066] figure 1 A schematic overview of a pocket space 9 between two drying cylinders 1 , 2 and a deflection roll 3 in the dryer section of a paper machine is shown. The pocket space 9 is delimited by the first drying cylinder 1, the second drying cylinder 2, the turning roll 3 and the web flows 5a, 5b. In more detail, the pocket space 9 is delimited on its entry side 9a by the web flow 5a between the first drying cylinder 1 and the turning roll 3, and on its exit side 9b by the turning roll 3 and the second turning roll 3. The web flow 5b between the drying cylinders 2 is delimited. The position of the deflection rolls in the horizontal direction x and in the longitudinal direction L of the paper machine is between the drying cylinders 1 , 2 , but in the vertical direction y it is below said drying cylinders 1 , 2 . The direction of rotation of the drying cylinders 1 , 2 is indicated by arrow R. It is to be understood that in the dryer section of a paper or board machine t...

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Abstract

The invention relates to a box-like elongated runnability component (10) and a method for a drying section of a paper machine or the like. The runnability component comprises an entry side surface (10a) and an exit side surface (10b), which are connected to each other at least by a lower surface, whereby the entry side surface, exit side surface and lower surface delimit the inner volume of the runnability component. Further, it has a first end and a second end (10', 10''), between which it extends in its length direction, as well as a first blowing element (11), which is arranged in connection with the entry side surface to blow air upwards, and a first sealing element (20), which is arranged in connection with the entry side surface, beneath the first blowing element (11), whereby the first sealing element (20) divides the surface of the entry side into a first region and a second region. Furthermore, the lower surface of the runnability component (10) is provided with a first suction element.

Description

technical field [0001] The present invention relates to a runnability component and a method for drying a paper web according to the preambles of the appended independent claims. Background technique [0002] In the drying section of a paper or board machine, the web to be dried is conveyed supported by one or two wires in contact with a plurality of heated dryer cylinders. In a single-felt draw configuration, the paper web is run through the dryer train supported by a dryer wire, whereby the dryer wire presses the web against the heated dryer surface. Thus, in a single-felt drawing configuration, the drying cylinders are arranged on the outside of the wire loop and the deflection rolls are arranged on the inside of the wire loop. A pocket space is formed which is delimited by the wire, two adjacent drying cylinders and the deflection roll between these drying cylinders and at a different level. An opening nip or gap is formed on the area on the entry side of the pocket sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21F5/00
CPCD21F5/042D21F5/046
Inventor 基莫·卡西宁内纳德·米洛萨夫列维奇卡勒·穆胡恩亚里-佩卡·皮哈约基佩卡·萨里基维
Owner VALMET TECH OY