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Closed loop environmental protection straw biomechanical pulping process

A technology of straw biological and mechanical method, which is applied in the direction of using microorganism/enzymatic cellulose treatment, finely divided raw material pretreatment, textile and papermaking, etc., which can solve the problems of high yield, pollution, low energy consumption, etc., and achieve pulping The effect of high yield

Active Publication Date: 2019-02-15
SHANDONG CENTURY SUNSHINE PAPER GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the many problems existing in the aforementioned existing papermaking process, the present invention provides a closed-loop environmentally friendly straw pulping process, which effectively solves the pollution problem caused by the traditional chemical pulping process, with low energy consumption and high yield

Method used

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  • Closed loop environmental protection straw biomechanical pulping process
  • Closed loop environmental protection straw biomechanical pulping process
  • Closed loop environmental protection straw biomechanical pulping process

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Embodiment Construction

[0024] The closed-loop environment-friendly straw biomechanical pulping process of the present invention combines biotechnology and mechanical technology, uses straw as a raw material, and replaces chemical reaction with biotransformation.

[0025] The pulping process of the present invention comprises: (1) the straw is subjected to rough crushing treatment, and the straw is cut into 8-10cm long coarse material;

[0026] (2) Coarse materials are finely crushed, cut into 3-5cm long fine materials, and the stalks are torn open radially;

[0027] (3) Carry out water washing treatment to aforementioned fine material, remove the silt in the raw material; Dust.

[0028] (4) fine material is carried out steam softening treatment;

[0029] (5) The fine material is impregnated with liquid medicine and scoured into coarse fiber;

[0030] (6) Bio-enzyme treatment is carried out in the bioreactor, and the non-fibrous organic matter in the raw material is oriented to be reacted by the bi...

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Abstract

The invention provides a closed loop environmental protection straw biomechanical pulping process, wherein straws are treated through coarse crushing, fine crushing, water washing, steam softening, dipping and rolling, bio-enzyme treatment, and high concentrated pulp grinding and the like. After mixing solid waste with waste liquid which is produced by a system and is concentrated, the solid wasteis pressed and pelleted and used for combustion power generation, and the straw pulping is achieved, and the process is a closed-loop and pollution-free treatment method, is environmental protection,and creates a new method of straw pulping and papermaking.

Description

technical field [0001] The invention relates to a pulping process, in particular to a closed-loop environment-friendly straw biomechanical pulping process. Background technique [0002] my country is the country that first invented papermaking technology and is a big country in papermaking. However, my country's papermaking technology is still relatively backward, mainly using chemical pulping technology or chemical mechanical technology. The chemical pulping process needs to use a large amount of chemical reagents in the pulping process, and a large amount of black liquor will be discharged during the pulping and cooking process. This black liquor is the main source of pollution. The direct discharge causes direct pollution of water sources and brings great harm to people. Life poses great hazards. [0003] Trees are a common raw material for papermaking, but because over-harvesting would cause great damage to the environment, people began to look for renewable alternative...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21B1/16D21C1/02D21C1/10D21C5/00
CPCD21B1/16D21C1/02D21C1/10D21C5/005
Inventor 王东兴夏友亮邵学军李强王延峰马宝庆
Owner SHANDONG CENTURY SUNSHINE PAPER GROUP
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