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Tetiary flow-aid and filter-aid method for high speed newspaper machine

A technology for retention and drainage, newsprint, applied in the addition of retention aids, papermaking, textiles and papermaking, etc., to achieve the effect of improving opacity, reducing sewage treatment load, and reducing the number of cleanings

Inactive Publication Date: 2006-12-20
中闽能源股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This ternary retention and drainage method showed deficiencies in its implementation

Method used

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  • Tetiary flow-aid and filter-aid method for high speed newspaper machine
  • Tetiary flow-aid and filter-aid method for high speed newspaper machine

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Experimental program
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Embodiment Construction

[0014] 48.8g / m was carried out with a slurry of 85% waste paper deinked pulp (DIP) and 15% wood chip groundwood pulp (TMP). 2 For offset printing newsprint production, the dosages of polymer Percol182, fixing agent Alcofix160 and bentonite are determined according to the proportions of 330PPM, 150PPM and 0.07% respectively. Add the fixative Alcofix160 to the mixed pulp tank to capture anionic garbage and reduce the interference of anionic garbage on the retention of polymer Percol182 and bentonite. Add polymer Percol182 to the screen outlet of the paper machine to reduce the high-intensity pulse of the rotor and destroy the molecular chain of cationic polyacrylamide. The addition of bentonite to the inlet of the diluted white water pump can effectively increase the chance of bentonite contacting fine materials so that fine materials can be retained better. In order to further improve the effect of the retention aid, the centrifugal force of the pulp at the screen landing point...

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Abstract

The present invention relates to tertiary retention-aiding and filter-aiding method for high speed newspaper machine. The present invention adopts fixing agent Akofix 160, polymer Perco1 182 and bentonite as retention aid, and features that fixing agent Akofix 160 is added into the mixed pulp pond, polymer Perco1 182 is added in the outlet of the pressure sieve in the papermaking machine, and bentonite is added in the inlet of the diluting white water pump. The present invention has the advantages of high opaqueness of the paper product, less white water consumption, light sewage treating load, less breakdown cleaning, etc.

Description

Technical field [0001] The invention relates to a three-element retention and drainage aid method for a high-speed newsprint machine, which is applied to the retention and drainage aid for a high-speed newsprint machine. Background technique [0002] To manufacture newsprint using a high-speed newsprint machine production line, it is necessary to select several process points in the slurry flow program and add appropriate retention and drainage aids respectively. Obviously, the distribution of a process point and the corresponding retention and drainage aids to be added to each process point determine a retention and drainage method. Generally, if the retention aids added are two kinds of additives, this method is called a binary retention and drainage method; if it is three kinds of additives, it is called a three-way retention and drainage method. The direct purpose of retention is to prevent the loss of fine fibers and fillers in the slurry; the direct purpose of drainag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H23/28D21H21/00D21H21/10
Inventor 林孝帮叶世城王金昌姜小杰吴永铭林熹
Owner 中闽能源股份有限公司