Tobacco stalk fiber substance as well as preparation method and application thereof

A fiber material and tobacco stem technology, which is applied in the field of tobacco stem fiber material and its biofibrillation, can solve the problems of high proportion of short fibers, poor durability, and damage to tobacco stem fiber structure, and improve the physical properties and processability of fibers , Improve the porosity and filling of the sheet, and the effect of low mechanical equipment strength requirements

Inactive Publication Date: 2012-05-30
朱大恒
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the comprehensive promotion of tobacco threshing and rebaking process in my country, a large amount of tobacco stem waste is produced. The annual tobacco stem waste produced in my country's tobacco processing reaches hundreds of thousands of tons. At present, part of the tobacco stem waste is used for the production of tobacco sheets, and most of it is due to Cannot be effectively used, resulting in a backlog of inventory, or destroyed by incineration, sanitary landfill, etc., resulting in waste of resources
[0003] At present, in the process of producing tobacco sheet from tobacco stem waste, mechanical fiberizing and beating methods are mainly used to prepare fiber raw materials. During the process of mechanical fiberizing and beating, the fiber structure of tobacco stems is greatly damaged, especially the fibers are easily broken. The proportion of short fibers is high, resulting in dense structure of thin slice products, poor filling and burning properties, and unsatisfactory coke reduction effect
[0004] On the other hand, in the pulping and papermaking process of using tobacco waste, there are currently two main methods. One is to directly adopt mechanical defibration and pulping. Great destructive effect, especially easy to break fibers, high proportion of short fibers, resulting in dense structure of paper or cardboard products, poor elasticity, large specificity, residual pectin is easy to cause mildew during product use, and poor durability
The second is to adopt the traditional chemical fiberizing and pulping method, which consumes a lot of energy, causes serious pollution, and the fibers are easy to cause damage.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Select 1000kg of waste tobacco stems produced by threshing and redrying plant, put it in the fermentation tank, add 1000kg of water, mix evenly, carry out aerobic high temperature solid state fermentation, and cover the surface of the material with plastic film. There is a ventilation pipe at the bottom of the fermentation tank, and proper ventilation is carried out during the fermentation process. After 2 days, the material temperature rose from the ambient temperature to 50°C; the following 15 days, the material temperature was maintained at 50-65°C; about the 18th day of fermentation, the material entered the cooling stage. On the 25th day of fermentation, the tobacco stalks complete the degumming effect. The tobacco stalks are sent to the defibrating tank (pool), and 8000kg of water is added. Stirring or beating at low speed (100-300 revolutions / min) for 1-10 minutes, so that the fibers are fully dispersed. , And then filter out the fibrous material, the filtrate and...

Embodiment 2

[0052] Select 1000kg of waste tobacco stems produced by threshing and redrying plant, place them in a fermentation tank, add 1000kg of water, 5kg of fermentation inoculants, mix well, carry out aerobic high temperature solid fermentation, and cover the surface of the material with plastic film. There is a ventilation pipe at the bottom of the fermentation tank, and proper ventilation is carried out during the fermentation process. After 2 days, the material temperature rose from the ambient temperature to 55°C; the following 15 days, the material temperature was maintained at 50-65°C; about the 15th day of fermentation, the material entered the cooling stage. On the 20th day of fermentation, put the tobacco stems into a defibrating tank (tank), add 6000kg of water, stir or beat at a low speed (100-300 revolutions / min) for 1-10 minutes to fully disperse the fibers, and then filter out the fibrous material , The filtrate and residue are further concentrated and processed into liq...

Embodiment 3

[0054] Select 100kg of waste tobacco stems produced by threshing and redrying plants, place them in a fermentation tank (pool), add 1000kg of water, soak for 24 hours, and gradually raise the temperature to 35℃, and then use the natural strains (mainly Bacillus ) Carry out liquid fermentation for 48 hours, continue to ventilate during the fermentation process, and gradually increase the stirring speed. Then, the tobacco stems are sent to the defibrating tank (tank), stirring or beating at low speed (300-1000 rpm) for 1-10 minutes, so that the fibers are fully evacuated, and then the fibrous material is filtered out, and the filtrate and residue are used as other materials Use; the fiber material is rinsed, dehydrated, and dried to obtain the tobacco stem fiber material product. The waste water rinsing the fiber material can be recycled for the fermentation process. After measurement, the average fiber length of the obtained tobacco stem fibrous material product is 8mm, and the...

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PUM

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Abstract

The invention provides a tobacco stalk fiber substance as well as a preparation method and an application thereof. The tobacco stalk fiber substance is obtained by the way that tobacco stalk is taken as a main raw material and biological degumming and extraction are carried out, the tobacco stalk fiber substance mainly comprises a single tobacco stalk fiber and a tobacco stalk fiber bundle (containing 2-20 single tobacco stalk fibers), and the average length of the fibers is 3-30mm. Production steps comprise processes such as burdening, biological degumming, defibering, fiber extracting and the like. The preparation method provided by the invention has the advantages of low degree of disruption to the fiber, high defibering degree, high long fiber ratio, low requirement on strength of mechanical equipment, low energy consumption and water consumption and no pollution discharge. The prepared fiber can be widely applied to tobacco sheet processing, papermaking, preparation of substrate used for soilless culture and the like.

Description

Technical field [0001] The invention relates to the technical field of tobacco stem waste utilization and tobacco stem defibrillation, in particular to a tobacco stem fibrous material and a biological defibrillation method and application thereof. technical background [0002] Tobacco stems are the thick, hard veins of tobacco leaves, accounting for about 20-30% of the leaf weight. With the comprehensive promotion of the tobacco threshing and redrying process in my country, a large amount of tobacco stem waste is produced. The tobacco stem waste produced in my country’s tobacco processing reaches hundreds of thousands of tons each year. At present, part of the tobacco stem waste is used for the production of tobacco slices, and most of the waste is used for the production of tobacco slices. Can not be used effectively, resulting in a backlog of inventory, or use incineration, sanitary landfill and other methods to destroy, resulting in waste of resources. [0003] At present, in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B5/16A24B3/14D21J1/00A01G1/00
Inventor 朱大恒
Owner 朱大恒
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