Capillary air pressure pressing roller set for papermaking

A technology of capillary air pressure and press rolls, which is applied in the direction of papermaking, paper machines, press parts, etc., and can solve the problems of not stopping the development of new press rolls

Inactive Publication Date: 2017-01-04
JIANGSU LEE & MAN PAPER MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Until now, researchers have not stopped developing new press rolls

Method used

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  • Capillary air pressure pressing roller set for papermaking

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Embodiment Construction

[0020] The present invention will now be further described in detail in conjunction with the accompanying drawings and embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic manner, so it only shows the composition related to the present invention.

[0021] Such as figure 1 As shown, a capillary pressure press roll group for papermaking includes: two press rolls that are squeezed together, and the two press rolls are arranged up and down, which are respectively an upper roll and a lower roll, and the axis of the press roll is hollow structure, the positive air pressure device at the end of the upper roll communicates with its hollow structure, and the negative air pressure device at the end of the lower roll communicates with its hollow structure. The guide layer and the capillary layer located outside the air guide layer, the capillary layer can rotate around the air guide layer, the air...

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Abstract

The invention relates to a capillary air pressure pressing roller set for papermaking. The capillary air pressure pressing roller set for papermaking comprises two pressing rollers mutually extruded together. The two pressing rollers are arranged up and down and comprise an upper roller and a lower roller; an axial center of each pressing roller is of a hollow structure; a positive air pressure device arranged on the end part of the upper roller communicates with the hollow structure of the upper roller; a negative air pressure device arranged on the end part of the lower roller communicates with the hollow structure of the lower roller; a roller wall of each pressing roller comprises a two-layer structure which is an air flow guiding layer with air holes and a capillary layer located on the outer part of the air flow guiding layer; each capillary layer can relatively rotate around each air flow guiding layer; the air holes of the air flow guiding layer in the upper roller and the air holes of the air flow guiding layer in the lower roller are intensively close to a tangent line position between the upper roller and the lower roller. The two pressing rollers are extruded together, an extrusion force can be formed on paper, water in the paper is extruded, and the capillary layers made of capillary materials are adopted on the outermost layers of the two pressing rollers, so that the extruded water can quickly flow into capillary holes.

Description

technical field [0001] The invention relates to a press roll, in particular to a capillary pressure press roll set for papermaking. Background technique [0002] Pressing is an essential process in the paper forming process, and its main function is to remove part of the water in the wet paper and solidify the paper. How to quickly squeeze out the moisture in the wet paper, and how to store and remove it reasonably is a problem that must be considered and solved in the research of press dehydration. Improving the pressing efficiency is a very important measure in the paper industry to improve product quality, save energy and reduce consumption, and improve economic benefits. [0003] The press dehydration of paper sheets is closely related to the structure and working mode of the press section of the paper machine, and is also related to the working parameters of the press equipment. The press section of the paper machine is mainly composed of press rolls. There are many t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21F3/04D21F3/08
CPCD21F3/04D21F3/083
Inventor 李文斌
Owner JIANGSU LEE & MAN PAPER MFG
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