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Crescent-shaped dehydrating screen for paper making machine

A paper machine and crescent technology, which is applied in the field of dewatering wire for crescent paper machines, can solve the problems of inability to meet the needs of high-grade household paper production, low speed of the paper machine, poor softness, etc., and achieves strong water absorption, The effect of fast dehydration and clear oblique lines

Active Publication Date: 2016-03-30
安徽华辰造纸网股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The existing dewatering nets are mainly used in the production of household paper on fourdrinier paper machines and inclined wire paper machines. The speed of paper machines is low, and most of them do not exceed 800 m / min. Although they can meet the needs of dehydration and forming, the surface of the produced household paper is No texture, high tightness and poor softness, which cannot meet the production needs of high-end household paper, especially the production needs of crescent-shaped paper machines

Method used

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  • Crescent-shaped dehydrating screen for paper making machine
  • Crescent-shaped dehydrating screen for paper making machine
  • Crescent-shaped dehydrating screen for paper making machine

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Embodiment Construction

[0029] The specific implementation manner of the present invention will be described in further detail below by describing the best embodiment with reference to the accompanying drawings.

[0030] Such as figure 1 , figure 2 with image 3 Shown: 1-16 are 16 warp threads, 21-36 are 16 weft threads in the upper layer, and 41-48 are 8 weft threads in the lower layer.

[0031] Such as figure 1 Shown: 16 warp threads from 1 to 16 interweave with 16 weft threads from 21 to 36 to form the upper layer of the dehydration net, forming the front side of the dehydration net. The front side of the dehydration net forms oblique lines and weft satin weaves, and the protruding front weft supports fine fibers , high fiber retention rate, low basis weight and good formation.

[0032] Such as figure 2 Shown: 16 warp threads from 1 to 16 interweave with 8 weft threads from 41 to 48 to form the lower layer of the dewatering net, forming the reverse side of the dewatering net. .

[0033] S...

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Abstract

The invention discloses a crescent-shaped dehydrating screen for a paper making machine. According to the dehydrating screen, 16 warp yarns and 24 weft yarns are adopted to be woven circularly, the 16 warp yarns and 16 weft yarns are interwoven to form an upper layer of the dehydrating screen to form the front of the dehydrating screen, and weft face satin weave is adopted as the front of the dehydrating screen; the 16 wrap yarns and 8 weft yarns are interwoven to form a lower layer of the dehydrating screen to form the reverse side of the dehydrating screen, and warp face satin weave is adopted as the reverse side of the dehydrating screen. The crescent-shaped dehydrating screen for the paper making machine has the advantages of being high and uniform in dehydrating speed and low in energy consumption, and produced paper for life is clear in slant grain, super soft, large in bulkness, high in water absorbing property and high in strength; when the product with the same thickness and the same area is produced, 20% of wood pulp cellulose is reduced compared with common paper for life, and a great number of wood fibers and forest resources are saved.

Description

technical field [0001] The invention relates to a dewatering net for papermaking, and more particularly to a dewatering net for a crescent-shaped paper machine. Background technique [0002] The dewatering wire for paper machine is an essential and valuable dewatering equipment for papermaking enterprises. It is applied in the wet part of the paper machine and runs circularly at a certain speed. The pulp is evenly sprayed onto the dewatering wire through the headbox. Forming plate, wiper blade, low vacuum suction box, high vacuum suction box, couch roll and other dewatering components remove the moisture in the slurry and keep the fibers on the dewatering net to form wet paper, which is sent to the press section. The use of dewatering nets must meet the requirements of paper quality and service life. Therefore, in the design of the organizational structure of the dewatering nets, the grain structure, fiber support index, air permeability, water filtration, longitudinal and l...

Claims

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Application Information

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IPC IPC(8): D21F1/10
CPCD21F1/10
Inventor 丁家祥丁朝阳王雷
Owner 安徽华辰造纸网股份有限公司
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