Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for preparing environment-friendly paper pulp by utilizing biological enzyme and production technique thereof

A production process and bio-enzyme technology, which is applied in pulping of cellulose raw materials, papermaking, textiles and papermaking, etc., can solve the problems of restricting the rapid development of small and medium-sized pulping enterprises, high pollution control costs, black liquor pollution, etc. The effect of production cost, low energy consumption and simple process

Inactive Publication Date: 2008-03-12
李增鹏
View PDF0 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to various factors such as immature technical equipment and high cost of pollution control, the problem of black liquor pollution has not been fundamentally solved, thus limiting the rapid development of small and medium-sized pulping enterprises

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Example 1: Choose 1.3 tons of poplar wood branches and cut them into small pieces with a wood slicer. The thickness is controlled within 1cm. Add laccase in the dispensing pool beforehand, and then add lignin peroxidase. The temperature in the pool should be controlled at 80~ Stir evenly at 90°C, put the raw materials into the soaking tank, pump into the bio-enzyme additive in the dispensing tank, steam for 15-24 hours, and control the temperature at 80-90°C. The basic principle is: the lignin of poplar wood is degraded by enzymes into low-molecular-weight lignin, which increases the ability of lignin to dissolve and be extracted, thereby realizing the separation of lignin from cellulose and hemicellulose. The soaked wood chips are processed into velvet-like fine fibers with a double helix rubbing and splitting machine, and the high-concentration refiner is used for high-concentration forced feeding. The purpose is to improve the pulp tapping degree and protect the fiber st...

Embodiment 2

[0010] Example 2: Choose 1.4 tons of wheat straw and cut it into sections about 5-10 cm in length with a grass cutter. Add laccase in the dispensing tank beforehand, and then add manganese peroxidase. The temperature in the tank should be controlled at 80-90℃ , Stir evenly, put the raw materials into the soaking tank, pump into the biological enzyme additives in the dispensing tank, steam for 10-20 hours, and control the temperature at 80-90℃

[0011] The basic principle is: the lignin of the raw material is degraded into low-molecular-weight lignin through enzymes, which increases the ability of lignin to dissolve and be extracted, so as to realize the separation of lignin from cellulose and hemicellulose. The water content of the soaked slurry is relatively large. It is squeezed by the first double screw squeezer to further increase the concentration of wheat straw, and the liquid medicine can be recycled to the dispensing tank.

[0012] The double-screw rubbing and splitting ma...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method and relevant production techniques to produce environmental protection type paper pulp with biologicall zyme. The invention is characterized in that, after pulp-prepration raw materials are cut into pieces or processed through rough cutting, paint zyme and lignin zyme is put into raw material soaking tank to degradate lignin. The purposes are to lower molecule quality lignin, increase resolving and fractionated capacity of lignin, fulfill separation of lignin cellulose from semi-cellulose. Meanwhile, adopt such methods aas mechanical twisting, grinding and pulp-beating, pulp grinding, screw pressing, fiber loosening, fine pulp regulation, fine screening and etc., so as to reach the following technical targets: Low production cost of paper pulp, high perfect pulp concentrate, no polluted drainage, simple technique and advanced method. Therefore, the invention can be widely utilized in paper pulp preparation technologies in paper-making industry.

Description

Technical field [0001] The invention relates to the technical field of papermaking, in particular to a method for preparing environmentally friendly paper pulp by using biological enzymes and a production process thereof. Background technique [0002] my country is a large paper-making country, and the resources of wood plant fiber and non-wood plant fiber used for pulping and papermaking are very rich, and the development prospects are broad. However, for a long time, because most small and medium-sized enterprises have been using traditional alkaline, sulfate, ammonium, and semi-chemical pulping technology. These traditional pulping methods that have undergone high-temperature cooking or chemical soaking have produced a large amount of black liquor and harmful gases during the pulping process, which not only pollutes the environment, but also brings great harm to people's lives and health. For this reason, many pulp and paper companies have invested heavily in transforming or i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): D21C3/22
Inventor 李增鹏
Owner 李增鹏
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com