Paper cut tail cutter heating apparatus

A technology of heating device and water needle, which is applied in the direction of papermaking, paper machine, textile and papermaking, etc., can solve the problems such as fouling and loosening of water needle nozzles on trimming edges, shortening the service life of forming nets, and abrasion of forming net edges, etc., to achieve Reduce poor cutting, reduce cutting spatter, and prolong service life

Inactive Publication Date: 2017-02-22
NINE DRAGONS PAPER IND TIANJIN
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Hard water will cause fouling during the papermaking process. If it is not controlled, it will not only cause fouling and loose flowers at the nozzle of the trimming water needle, resulting in poor cutting of the wet paper web, but also in serious cases, it will cause damage to the edge of the forming wire. Severe wear and tear, shortening the service life of the forming net

Method used

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  • Paper cut tail cutter heating apparatus

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Embodiment Construction

[0013] The present invention is specifically described below in conjunction with accompanying drawing, as shown in the figure,

[0014] A water needle heating device for paper cutting, which consists of a soft water tank, a water needle pump, a water needle filter and a cutting edge water needle,

[0015] The soft water tank collects steam condensed water from the drying cylinder to obtain hot soft water;

[0016] The needle pump transmits hot soft water to the needle filter.

[0017] The water needle filter passes the hot soft water to the trimming water needle after filtering;

[0018] The trimming water needles include two fixed water needles 1 and one mobile standby water needle 2 .

[0019] The invention utilizes steam condensed hot soft water of the drying cylinder as high-pressure water for trimming water needles, and the hardness of steam condensed hot soft water is low, which will not cause fouling of trimming water needles and cause water needles to scatter, and at...

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Abstract

The invention discloses a paper cut tail cutter heating apparatus. Paper cutter tail cutter high-pressure water is vapor condensation heat soft water and then filtered via a tail cutter filter to work as wet paper web trimming tail cutter. The paper cut tail cutter heating apparatus can reduce poor wet paper web cutting due to slag accumulation and falling apart of a trimming tail cutter nozzle; deckle edge cutting splash due to tail cutter falling apart can be reduced, so paper lint defect of original paper can be avoided; and abrasion to a side part of a forming net by heat soft water can be reduced, so service life of a net can be prolonged.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to hard water softening technology. Background technique [0002] Hard water will cause fouling during the papermaking process. If it is not controlled, it will not only cause fouling and loose flowers at the nozzle of the trimming water needle, resulting in poor cutting of the wet paper web, but also in serious cases, it will cause damage to the edge of the forming wire. Severe wear and tear will shorten the service life of the forming net. If the hard water quality is softened to reduce the content of calcium and magnesium ions in the water quality, it will play a major role in the stable operation of the paper machine in production, prolonging the service life of the fabric, and reducing the problem of base paper. Therefore, it is necessary to design a new paper-cut water needle heating device. Contents of the invention [0003] The object of the present invention is to s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21F7/00
Inventor 李志军
Owner NINE DRAGONS PAPER IND TIANJIN
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