High-quality paper web papermaking technology

A paper-making process and high-quality technology, applied in the direction of textiles and paper-making, paper-making, paper-making machines, etc., can solve the problems of undisclosed paper-making machinery or paper-making system paper-making process, different degrees of thickness, paper quality reduction, etc., to avoid clogging, improve The effect of retaining power and improving quality

Active Publication Date: 2017-12-12
临泉鹏成机电技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Slurry used in papermaking is a complex, heterogeneous compound of fibers, fine fibers, fillers, and other additives, all of which have constantly changing properties, which can cause confusion during processing. The main part of the raw material is not turned into paper when it is first passed through the production line, but the raw material is dewatered on the forming wire, but the dewatering process causes fine fibers and fillers to be lost through the forming wire along with the moisture, Poor retention at least
[0003] In addition, since the sources of fibers and fine fibers used in papermaking are generally certain fiber raw materials such as hardwood pulp, recycled fiber or agricultural fiber, and these fiber raw materials are more or less heterogeneous, the fibers contained in them are The degree of thickness is different, directly used on the forming screen, it will easily lead to the reduction of paper quality after forming
[0004] In U.S. Patent Application No. 4,781,793, a method of improving paper properties, especially paper retention, is disclosed, in which the basic stock is separated into two separate fractions based on fiber length, and according to the specific purpose to process the fibers in each component, but it does not disclose the corresponding papermaking machinery or papermaking system and papermaking process

Method used

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  • High-quality paper web papermaking technology
  • High-quality paper web papermaking technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Such as figure 1 As shown, a high-quality paper web papermaking process, including:

[0045] Step 1, the feeding process, the papermaking slurry is pumped from the slurry tank 411 to several feeding pipes 412 by the feeding pump 413, and sprayed on the filter area 31 of the filter screen 3 by the feeding pipe 412;

[0046] Step 2, smoothing process, the papermaking slurry reaching the filter area 31 is rolled and smeared by the smoothing roller 422 rolling back and forth along the chute 4211;

[0047] Step 3, the filtering process, the papermaking slurry smoothed by the smoothing roller 422 passes through the filter area 31 of the filter screen 3, and the papermaking slurry is filtered by the filter area 31 and sprinkled on the forming wire 2;

[0048] Step 4, water squeezing process, the papermaking slurry sprinkled on the forming wire 2 is driven by the forming wire 2 to the water squeezing station at the rear side of the filter area 31, and the dewatering motor 52 d...

Embodiment 2

[0065] Such as figure 2 and image 3 As shown, a high-quality paper web papermaking system includes a frame 1, the frame 1 is L-shaped, it includes a first installation part 11 arranged horizontally and a second installation part 12 arranged vertically, and also includes:

[0066] The forming wire 2, the forming wire 2 is arranged horizontally around the first installation part 11, and forms an endless wire ring, which is uniformly distributed meshes, and its upper area forms a papermaking area 21;

[0067] The filter screen 3, the filter screen 3 is horizontally arranged on the second installation part 12, and forms an endless mesh ring, which is located above the input end of the papermaking area 21, and it is uniformly distributed. The mesh number of the net 3 is larger than the mesh number of the forming screen 2, and the conveying direction of the lower end area of ​​the filter mesh 3 is opposite to the conveying direction of the papermaking area 21;

[0068] A feeding...

Embodiment approach

[0103] Such as figure 2 As shown, as a preferred embodiment, the dehydration device 5 includes:

[0104] A plurality of dehydration rollers 51, both ends of the dehydration rollers 51 are installed on the first mounting part 11 in rotation, they are equidistantly arranged above the dehydration zone 213 along the conveying direction of the dehydration zone 213, and along the The conveying direction of the dehydration zone 213, the vertical distance between the dehydration roller 51 and the dehydration zone 213 changes from large to small; and

[0105] A dehydration motor 52 , the dehydration motor 52 is arranged on one side of the first installation part 11 , and it is connected to any one of the dehydration rollers 51 in transmission, and drives the other dehydration rollers 51 to rotate through a belt transmission.

[0106] It should be noted that, in the process of squeezing and dehydrating the slurry by the dewatering roller 51, due to the gradual decrease of the moisture...

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Abstract

The invention provides a high-quality paper web papermaking technology. The technical problems that in the slurry dehydrating process, filler is lost and the remaining force is poor are solved. Compared with a traditional papermaking technology, before papermaking slurry is sprayed to a forming mesh, by adding a filtering process, a filter net is used for filtering the papermaking slurry, thick and long fibers are filtered out, the consistency of the thickness and length degree is ensured, then, the number of meshes in the forming mesh can be decreased, excessive filler losses are avoided, meanwhile, by adding the defoaming process, water and filler contained in the filter net are used for smearing the forming mesh before papermaking, bubbles on the forming mesh are removed, and a layer of filler is smeared on the forming net in advance so as to improve the quality of formed paper sheets.

Description

technical field [0001] The invention relates to the field of base paper forming in the papermaking process, in particular to a high-quality paper web papermaking process. Background technique [0002] Slurry used in papermaking is a complex, heterogeneous compound of fibers, fine fibers, fillers, and other additives, all of which have constantly changing properties, which can cause confusion during processing. The main part of the raw material is not turned into paper when it is first passed through the production line, but the raw material is dewatered on the forming wire, but the dewatering process causes fine fibers and fillers to be lost through the forming wire along with the moisture, At least less staying power. [0003] In addition, since the sources of fibers and fine fibers used in papermaking are generally certain fiber raw materials such as hardwood pulp, recycled fiber or agricultural fiber, and these fiber raw materials are more or less heterogeneous, the fibe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21F11/00
CPCD21F11/002
Inventor 丁俞岚
Owner 临泉鹏成机电技术有限公司
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