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Method and device for a fiber web production line through a coating substance

A fiber web and fiber generation technology, which is applied in fiber raw material processing, pulp raw material addition process, textile and papermaking, etc., can solve the problems of high cost and low fiber web running performance, and achieve good retention and simple device structure. Effect

Inactive Publication Date: 2014-08-27
VALMET TECH OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages in this type of contact coating method are the high cost of the equipment required and the low runnability of the fiber web

Method used

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  • Method and device for a fiber web production line through a coating substance
  • Method and device for a fiber web production line through a coating substance
  • Method and device for a fiber web production line through a coating substance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0061] In the following description, unless otherwise specified, the same reference numerals refer to the same or corresponding parts or components of the above examples.

[0062] exist figure 1 An example of a spin coating device 10 is schematically shown in , which is a rotating disc atomizer and includes a disc 11 rotatably arranged on a shaft 12 . The rotary disc atomizer also includes an actuator 13 for providing the rotary motion of the disc 11 . The substance to be coated is supplied on the turntable 11 via the fluid line 15 or a corresponding inlet channel. The control means 14 control the rotational speed of the disc 11 by controlling the actuator 13 , while the control means 16 control the amount of substance to be fed on the disc 11 . When the substance to be applied to form the fiber web or the substance to be applied to the fiber web has been fed on the turntable 11 through the fluid pipe 15, it is sprayed and misted by centrifugal force on all edges of the disk...

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Abstract

The invention relates to a method for applying a substance to generate at least one web layer of a fiber web, in which method a substance mixture or suspension or dispersion or solution is applied on a moving surface by at least one spraying and atomizing means. In the method the at least one web layer of fiber web is generated on to moving surface by providing an atomized substance spray comprising fiber particles by the at least one spraying and atomizing means to apply the substance mixture or suspension or dispersion or solution flow as a high viscosity and high consistency mixture or suspension or dispersion or solution, which has the consistency over 5 %. In the method the substance flow is sprayed and atomized by the at least one spraying and atomizing means comprising at least one rotary application means and fiber web is generated partly or completely by applying in contactless manner fibrous substance in form of mixture or suspension or dispersion or solution. The invention also relates to an arrangement for applying a substance to form at least one web layer of a fiber web, which arrangement comprises at least one spraying and atomizing means and moving surface. The arrangement comprises at least one rotary application means for spraying and atomizing the substance mixture or suspension or dispersion or solution with high viscosity and high consistency, in which the mixture or suspension or dispersion or solution comprises fibers or fibrous particles and has the consistency over 5 %.

Description

technical field [0001] The invention relates to a method and a device for a fiber web production line. In particular, the invention relates to a method and a device for producing at least one web layer of a fibrous web by coating. Background technique [0002] As is known from the prior art, a fiber web production process usually comprises an assembly of several devices arranged in succession along the production line. A typical production and processing line consists of a headbox, a forming section, a press section followed by a drying section and a coiler. The production and processing line may also comprise other equipment and / or sections for finishing of the fiber web, such as a pre-calender, a size press, a coating section, a final calender. The production and processing line also includes at least one slitter-winder for forming customer rolls and roll wrappers. In this description and in the appended claims, fibrous webs refer eg to paper webs and cardboard webs. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H23/50
CPCD21F9/006D21H23/50D21F11/04D21F1/02
Inventor 雷约·皮耶蒂凯宁
Owner VALMET TECH OY
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