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Vat former for paper machine and application thereof

A former and paper machine technology, applied in the paper machine, paper machine, paper machine wet end, etc., can solve the problems of being unable to adapt to the variety of production varieties, low paper formation uniformity of the counter-flow network tank, and the speed of the machine cannot be too high, etc., to achieve Good economic and social benefits, ingenious design concept, and convenient use

Active Publication Date: 2014-12-10
SHANDONG XINHE PAPER ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The characteristic of the downstream network tank is that it has a large dehydration arc length, and it can use pulp with a lower concentration. The uniformity of the paper in the type net trough is low, and the speed cannot be too high; the suction type net trough is suitable for the situation of high speed

Method used

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  • Vat former for paper machine and application thereof
  • Vat former for paper machine and application thereof
  • Vat former for paper machine and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A network tank former for a paper machine, comprising a pulp distribution device 10, a partition type headbox 11, a network tank forming flow channel, a flow channel adjustment device 12, an outlet adjustment device 15, and a dispersant adding device 13, wherein the The mesh groove forming flow channel includes an orientation part and a constant speed part, the orientation part includes an orientation arc plate 6 and a lip cloth 7, and the lip cloth 7 is fixedly arranged on the upper end surface of the orientation arc plate 6 and overlaps with the mesh surface , the fixed speed part is an adjustable movable arc-shaped plate 8, the outlet adjusting device 15 is arranged on the upper end of the movable arc-shaped plate 8, and the flow channel adjusting device 12 is arranged on the lower end of the movable arc-shaped plate 8, so The bottom end of the movable curved plate 8 is provided with a homogenizing groove 9, and the dispersant adding device 13 is arranged on the frame...

Embodiment 2

[0037] A network tank former for a paper machine, the structure is as described in Example 1, the difference is that the homogenizing groove is set as a semicircular groove with a diameter of 150 mm.

Embodiment 3

[0039] A method for using the above-mentioned paper machine network tank former, comprising the following steps,

[0040] (1) When the paper machine is working, the pulp enters the square cone pipe 3 from the first square pipe 2, and then enters the headbox 11 through the pulp delivery pipe 4 connected with the square cone pipe 3, and the remaining pulp enters the headbox 11 from the second square pipe. Pipe 2 flows out;

[0041] (2) The dispersant adding device 13 injects the dispersant for papermaking into the headbox 11 through the rubber hose 1, and after the pulp entering the headbox 11 is mixed with the dispersant, it passes through the homogenizing groove 9 to suddenly diffuse to generate turbulent flow;

[0042] (3) Adjust the movable arc-shaped plate 8 through the outlet adjustment device 15 and the flow channel adjustment device 12, adjust the width of the flow channel between the movable arc-shaped plate 8 and the mesh surface, and the pulp reaches the mesh surface ...

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Abstract

The invention relates to a vat former for a paper machine and the application of the vat former. The vat former for the paper machine comprises a pulp distributing device, a headbox, a vat forming flow channel, a flow channel adjusting device, an outlet adjusting device and a dispersing agent adding device. The vat forming flow channel comprises a directional portion and a constant-speed portion, wherein the directional portion comprises a directional arc plate and an apron, the apron is fixedly arranged on the upper end face of the directional arc plate and is in lap joint with the mould face, the constant-speed portion comprises an adjustable movable arc plate, the bottom end of the movable arc plate is provided with a pulp evening ditch, the width of the flow channel between the movable arc plate and the mould face is adjusted through the outlet adjusting device and the flow channel adjusting device, and the proportional relation between the width of the flow channel at the position of a pulp inlet and the width of the flow channel at the position of an overflowing opening is adjusted at the same time. Through adjustment of the movable arc plate, the amount of pulp flowing onto the mould can be effectively controlled. The vat former for the paper machine is convenient to use, remarkable in effect and suitable for multiple kinds of products.

Description

technical field [0001] The invention relates to a network groove former for a paper machine and an application thereof, belonging to the technical field of paper making equipment. Background technique [0002] The former is the heart of the whole paper machine, which is related to the quality of the paper. In the cylinder former, the suspension of the paper material is formed into a paper sheet through water filtration on the cage surface. The quality of the paper and the normal production of the paper machine are closely related to the structure and operation of the forming device. Once the wet paper web is formed in the forming device, the fiber interweaving state in the paper is basically fixed, and the basic physical properties of the paper are also determined. The subsequent pressing, drying and calendering of the paper machine can only improve the formed state to a limited extent. The nature of the paper web. [0003] For the forming device, it is generally divided i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21F1/00D21F1/06
Inventor 夏吉瑞韩美营姬雪连李培国宋来臣翟世冲张姗姗王芸张磊
Owner SHANDONG XINHE PAPER ENG CO LTD
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