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Dilution water ring addition device of head box

A dilution water, annular technology, applied in textile and paper making, paper machine, wet end of paper machine, etc., can solve the problem of uneven concentration of local pulp, achieve uniform quantitative distribution globally, improve uniformity, and ensure uniform mixing. Effect

Inactive Publication Date: 2011-09-07
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiency of local slurry concentration unevenness caused by the existing method of adding dilution water in the headbox, the present invention provides a ring-shaped dilution water adding device for the headbox, which can uniformly mix the dilution water and the slurry, and improve the concentration of the slurry. Concentration Uniformity

Method used

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  • Dilution water ring addition device of head box
  • Dilution water ring addition device of head box
  • Dilution water ring addition device of head box

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Embodiment Construction

[0017] In order to further understand the present invention, the present invention will be further described below in conjunction with the accompanying drawings. It should be noted that the specific embodiments do not limit the protection scope of the present invention.

[0018] Such as figure 1 As shown, the dilution water ring adding device of the headbox is mainly composed of a dilution water main pipe 2, a stepping motor 3, a dilution water valve 4, a dilution water branch pipe 5, and a dilution water ring adding plate 6. The dilution water annular addition plate 6 is installed between the slurry inlet main pipe 1 and the tube bundle 7, the slurry in the slurry inlet main pipe 1 enters the tube bundle 7 through the slurry inlet hole 11 on the dilution water annular addition plate 6, and the dilution water is added through the dilution water ring at the same time The adding unit of the plate 6 is distributed to the corresponding slurry inlet hole 11, uniformly mixed with th...

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Abstract

The invention provides an annular dilution water addition device which is suitable for a head box of a high speed paper machine. The device includes a header pipe of dilution water, a stepping motor, a dilution water valve, a branch pipe of the dilution water and an annular addition board of the dilution water. The header pipe of the dilution water is respectively connected with a plurality of branch pipes of the dilution water by the dilution water valve, and the dilution water valve is connected with the stepping motor, and a plurality of branch pipes of the dilution water are connected with the annular addition board of the dilution water; the annular addition board of the dilution water consists of a plurality of addition units which are transversely arranged on a dilution water board; the inlet of a water inlet tank is connected with the branch pipe of the dilution water and a plurality of outlets thereof are respectively connected with an annular groove; and the annular groove is positioned at the periphery of a pulp inlet hole and the inner side thereof is connected with the pulp inlet hole by an addition opening. The dilution water enters the annular addition board of the dilution water from the header pipe through the dilution water valve and the branch pipe and is evenly added into the pulp of the corresponding pipe bundle in an annular way so as to ensure that the dilution water in the local area of the addition chamber can be uniformly mixed with the pulp and improve the uniformity of the transverse local quantitative distribution of the paper.

Description

technical field [0001] The invention relates to the technical field of pulping and papermaking, in particular to a dilution water adding device for the headbox of a high-speed paper machine that controls the lateral quantitative distribution of paper sheets by adjusting the concentration of the slurry with dilution water, and specifically relates to multiple dilution water injection points at the same time. The device for uniformly adding dilution water meets the requirements of the headbox of the high-speed paper machine for the quantitative distribution of paper sheets in the transverse direction. Background technique [0002] At present, there are generally two ways to control the lateral quantitative distribution of paper sheets in paper machines. One is to partially fine-tune the opening of the headbox lip. It also follows the change; the other is to control the quantitative control of the paper sheet in the transverse direction by adding dilution water to adjust the sl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F1/08D21F1/04
Inventor 冯郁成陈克复
Owner SOUTH CHINA UNIV OF TECH
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