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Banana tree paper manufacture technique, slurry storage technique and sewage disposal technique thereof by soft chemistry method

A papermaking process and papermaking sewage technology, which is applied in the directions of washing/replacing pulp treatment liquid, pulp dehydration, fiber raw material treatment, etc., can solve the problems of low production efficiency, large loss of raw materials, sewage pollution, etc., and achieves reduction of production costs and loss of raw materials Effects of low, significant environmental benefits

Inactive Publication Date: 2009-02-04
郑子山
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a banana tree papermaking process, slurry storage technology and sewage treatment technology using soft chemical method to solve the problems of low production efficiency, large raw material loss and sewage pollution in the pulp refining process of the existing technology. The method is efficient and fast, with low loss of raw materials, high yield, strong operability, high-quality paper product yield, long-term storage of raw materials, stable supply, almost no pollution to the environment, and significant economic and environmental benefits.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] (1) Raw materials: Banana trees, leaves and stems that have been felled for no more than 5 days

[0047] (2), pressing and cutting: put the raw material through a rolling machine to squeeze out 40% of the water and cut it into equal lengths of 1 cm;

[0048] (3) Crushing and dispersing: After cutting the material, it is sent to the crusher for crushing through the conveyor belt, and the fibers are detached by high-pressure water to form the primary slurry;

[0049] (4) Sand settling: the initial slurry is desanded through the sand settling ditch;

[0050] (5) Water washing: the initial slurry is sent to the centrifugal tank for water washing after desanding in the sand ditch to remove dirt and mud;

[0051] (6), bleaching: add 0.3% sodium hypochlorite equivalent to dry material weight to the slurry after washing, carry out quick bleaching by heating pipeline;

[0052] (7), pulp refining: add 0.1% sodium linoleate equivalent to dry material weight to the pulp after bleac...

Embodiment 2

[0062] (1) Raw materials: Banana trees, leaves and stems that have been felled for no more than 5 days

[0063] (2), pressing and cutting: put the raw material through a rolling machine to squeeze out 60% of the water and cut it into equal lengths of 5 cm;

[0064] (3) Crushing and dispersing: After cutting the material, it is sent to the crusher for crushing through the conveyor belt, and the fibers are detached by high-pressure water to form the primary slurry;

[0065] (4) Sand settling: the initial slurry is desanded through the sand settling ditch;

[0066] (5) Water washing: the initial slurry is sent to the centrifugal tank for water washing after desanding in the sand ditch to remove dirt and mud;

[0067] (6), bleaching: add 10% sodium chlorate equivalent to dry material weight to the slurry after washing, carry out rapid bleaching by heating pipeline;

[0068] (7), refining: add 6% sodium arachidonic acid and potassium linoleate (the mass ratio of the two is 1 to 1...

Embodiment 3

[0078] (1) Raw materials: Banana trees, leaves and stems that have been felled for no more than 5 days

[0079] (2), pressing and cutting: put the raw material through a rolling machine to squeeze out 45% of the water and cut it into equal lengths of 2 cm;

[0080] (3) Crushing and dispersing: After cutting the material, it is sent to the crusher for crushing through the conveyor belt, and the fibers are detached by high-pressure water to form the primary slurry;

[0081] (4) Sand settling: the initial slurry is desanded through the sand settling ditch;

[0082] (5) Water washing: the initial slurry is sent to the centrifugal tank for water washing after desanding in the sand ditch to remove dirt and mud;

[0083] (6), bleaching: add the chlorine dioxide equivalent to 1% of dry material weight to the slurry after washing, carry out quick bleaching by heating pipeline;

[0084] (7), pulp refining: add 1% sodium palmitate equivalent to dry material weight to the pulp after ble...

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Abstract

The invention provides a banana tree paper making process, a pulp storage technology and a wastewater treatment technology with a soft chemistry method; the process comprises raw material collection, compression and cutting, crashing and fluffing, desliting, washing, blenching, jordaning, grinding, degumming or paper making; the pulp storage technology is as follows: a small amount of preservative is added into thick pulp to receive tumble-dry treatment; the paper making wastewater treatment is as follows: waste water and impurity removal; and the wastewater can be purified and reused. The method has the advantages of high efficiency and quickness, low raw material consumption, high yield, strong operability, high yield and good quality of paper product; the raw materials can be stored for a long time, stable supplied, nearly have no pollution to the environment, and have obvious economic benefit and environment benefit.

Description

technical field [0001] The invention belongs to the technical field of papermaking, and more specifically relates to a banana tree papermaking process using a soft chemical method, a slurry storage technology and a sewage treatment technology. Background technique [0002] The traditional papermaking process requires high temperature and alkali cooking, which will cause serious environmental pollution and damage to forest resources. Using waste banana trees for papermaking can save resources and reduce environmental pollution, and the social role is very obvious. Chinese patent ZL02115525.9, patent name "banana tree pulp and its process", its main process is (1) raw material chopping beating, (2) slurry concentration, (3) heating bleaching, (4) degumming, (5) ) Refining. The raw materials of this process need to be chopped and directly pulped many times, which is time-consuming and energy-consuming; the use of high-temperature cooking with ammonia in the bleaching process ...

Claims

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Application Information

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IPC IPC(8): D21H11/12D21B1/06D21B1/12D21C9/02D21C9/12D21D1/00D21H21/08D21C9/18D21C11/00
Inventor 郑子山陈国良
Owner 郑子山
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