Method for producing raw material of papermaking fiber

A technology of fiber raw materials and biomass, which is applied in the field of papermaking fiber raw materials, can solve the problems of limited output, high cost, and large water consumption, and achieve the effects of environmental protection, improvement of utilization rate, and water conservation

Inactive Publication Date: 2007-12-26
陈延林
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AI Technical Summary

Problems solved by technology

[0002] In the past, chemical pulping methods such as alkali method or sulfite method were the main methods of paper pulping. However, this simple chemical pulping method requires a large amount of chemicals in the early stage of production and consumes a lot of water resources. And cause a large amount of sewage discharge, can no longer meet the requirements of modern environmental protection, has been basically eliminated
At present, two methods are generally used. One is an ecological method that combines biodegradation and physical cracking. It is suitable for biomass fibers with low density, such as wood, grass, etc., and it needs to be puffed, which consumes a lot of energy and costs a lot. At the same time, the pulp made is hard and needs a long biodeg...

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
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Examples

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Embodiment Construction

[0006] For example, the combination of low-alkali chemical swelling, biodegradation, and physical cracking is used to make paper-making bamboo fiber raw materials. The process is as follows:

[0007] First, chop the bamboo (including bamboo poles, bamboo tips, bamboo branches, scraps from bamboo products, etc.) 10cm, screened to remove powder particles, and then prepare a reservoir, add low-alkali chemicals not higher than 6% in the pond, such as CaO, NaOH, sodium sulfide, etc., keep the normal temperature, and the bamboo material Perform low chemical swelling in the pool for 30-60 hours; or heat, the temperature is generally kept at 35°C-60°C, and perform low chemical swelling in the pool for 20-40 hours. Afterwards, the bamboo material is drained, and the liquid in the pool is mixed with the liquid added with the fungus, and then gradually filtered to make it biodegrade naturally. The filtered liquid is biodegradable due to the use of low-level chemicals, and can be reused ...

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Abstract

This invention relates to a method for producing paper making bamboo fiber materials, which applies a combination method of low chemical moist expansion, bio-degradation and physical analysis to cut up and select biomass for low chemical moist expansion, dipped with bacterium and analyzed mechanically then to be steamed and analyzed mechanically to prepare fiber materials of paper making, which meets the requirement of environment protection.

Description

technical field [0001] The invention relates to a method for producing papermaking fiber raw materials, especially bamboo fiber raw materials for papermaking. Background technique [0002] In the past, chemical pulping methods such as alkali method or sulfite method were the main methods of paper pulping. However, this simple chemical pulping method requires a large amount of chemicals in the early stage of production and consumes a lot of water resources. And cause a large amount of sewage discharge, can no longer meet the requirements of modern environmental protection, has been basically eliminated. At present, two methods are generally used. One is an ecological method that combines biodegradation and physical cracking. It is suitable for biomass fibers with low density, such as wood, grass, etc., and it needs to be puffed, which consumes a lot of energy and costs a lot. At the same time, the pulp made is hard and needs a long biodegradation time; Its fiber shape densi...

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
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Application Information

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IPC IPC(8): D21B1/04
Inventor 陈延林
Owner 陈延林
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