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Device and method for producing a material web

A technology of format and equipment, applied in the field of drying equipment, can solve the problems of expensive connection devices, long manufacturing and assembly time, etc., and achieve the effect of easy fixing and installation, and preventing slipping.

Inactive Publication Date: 2012-09-19
VOITH PATENT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Disadvantages of the prior art embodiments are that the production of the connecting device interfering with the slats and the roller cover is expensive and, moreover, requires a long manufacturing and assembly time

Method used

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  • Device and method for producing a material web
  • Device and method for producing a material web
  • Device and method for producing a material web

Examples

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Embodiment Construction

[0039] figure 1 A drying installation 1 according to the invention is shown which has a steam-heatable cylinder 1.1, in particular a drying cylinder 1.1 of a paper machine, which has a slat cage 10 installed in its interior. The interfering strips 2 are arranged axially, that is to say parallel to the longitudinal axis 1.1 of the drying drum, and are pressed against the shell surface 1.2 by means of four retaining rings 3 . The retaining ring 3 designed as an extruded element consists of several retaining ring segments 3.1. In order to generate a radial tension on the interfering strip 2 , the retaining ring segments are pressed against each other by tensioning elements, such as helical springs or cylindrical springs 4 . In this exemplary embodiment, there is a form-fit connection at each intersection point between the retaining ring segment 3 . 1 and the interfering strip 2 . The retaining rings 3 are arranged equidistantly. Expediently, they are arranged closer together i...

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PUM

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Abstract

The invention relates to a drying device (1) for drying a material web, in particular a paper, cardboard, or tissue web, comprising a steam-heatable cylinder (1.1) with an interior that has a lateral face (1.2). The drying device also comprises a device (10) lying in the interior for increasing the heat transfer from the interior to the lateral face (1.2). The device (10) comprises at least one disrupting strip (2), which lies axially and which has a contact surface (8) that is in contact with the lateral face (1.2), and at least one pressing element (3) for pressing the at least one disrupting strip onto the lateral face (1.2). The invention is characterized in that the lateral face (1.2) and / or the contact surface (8) of the disrupting strip (2) has means for increasing the friction coefficient between the lateral face (1.2) and the disrupting strips (2).

Description

technical field [0001] The invention relates to a drying apparatus for drying a material web, in particular a paper, cardboard or tissue paper web. The drying device comprises a steam-heatable drum with an interior with a shell surface and a device for increasing the heat transfer from the interior space to the shell surface. The device comprises at least one interference web arranged axially with a contact surface in contact with the shell surface and at least one pressing element for pressing the at least one interference web against the shell surface. Background technique [0002] Rollers with such devices are known. Thus, such a device is described in patent document EP1362951. The interfering slats consist of a tube with a rectangular cross-section and are pressed onto the inner wall of the drum via retaining rings. In order to fix the interfering strips with the retaining ring, there are perforations in the interfering strips for receiving pins, which in turn are sc...

Claims

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Application Information

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IPC IPC(8): D21F5/02
CPCD21F5/021
Inventor E.维勒H.布伦纳M.洛尔曼
Owner VOITH PATENT GMBH
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