Wood fiber pretreatment liquid and manufacturing method of fiberboard

A pretreatment liquid and wood fiber technology, which is applied in the pretreatment of molding materials, manufacturing tools, flat products, etc., can solve the problems of unbreakable fiber yield, increased production energy consumption, high energy consumption, etc., and achieve the reduction of control requirements, Ease of control and high fiber yield

Active Publication Date: 2019-01-01
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Controlling the moisture content of wood chips, prolonging the heat grinding time, and prolonging the log cooking time will greatly increase the production energy consumption. Therefore, although the existing fiber production method is mature, it still has high requirements, high energy consumption, and high fiber yield. unbreakable problem

Method used

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  • Wood fiber pretreatment liquid and manufacturing method of fiberboard
  • Wood fiber pretreatment liquid and manufacturing method of fiberboard
  • Wood fiber pretreatment liquid and manufacturing method of fiberboard

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1: A kind of lignocellulosic pretreatment liquid, is made by stirring and mixing component A, component B and water. Component A is laccase powder, and the dosage is 0.1kg; component B is sugar, and the dosage is 0.35kg; water, 13.65kg. 14.1kg per serving.

Embodiment 2

[0043] Embodiment 2: A kind of lignofiber pretreatment liquid, which is formed by stirring and mixing component A, component B and water. Component A is photosynthetic bacteria powder, and the dosage is 0.1kg; component B is corn flour, and the dosage is 0.55kg; water, 14.65kg. 15.3kg per serving.

Embodiment 3

[0044] Embodiment 3: A kind of lignofiber pretreatment liquid, which is formed by stirring and mixing component A, component B and water. Component A is xylanase powder, and the dosage is 0.1kg; component B includes corn flour, and the dosage is 0.69kg, and sodium silicate powder, and the dosage is 0.06kg, 0.75kg in total; water, 15.65kg. 16.5kg per serving.

[0045] A kind of manufacturing method of the fiber board that has utilized the pretreatment liquid of embodiment 1 to embodiment 3, comprises the following steps in sequence:

[0046] S1. Log steaming and chipping treatment, the log or branch wood is steamed for 8 hours, and the steamed log or branch wood is chipped.

[0047] S2. The process of preparing the pretreatment solution, according to the dosage of the embodiment 1 to the embodiment 3, component A, component B and water are placed in the container, after stirring, stand at room temperature for 12 hours.

[0048] S3. The process of pretreatment, before the proc...

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PUM

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Abstract

The invention discloses a kind of wood fiber pretreatment liquid. The wood fiber pretreatment liquid comprises a component A and water. The component A comprises enzyme powder or bacterial powder usedfor degrading cellulose, hemicelluloses and/or lignin. The pretreatment liquid further comprises a component B. The component B comprises water-soluble nutrition powder. The pretreatment liquid is formed by stirring and mixing the component A, the component B and water. The charging mass ratio of the component A to the component B to the water is (1-5):(3.5-9.5):(136.5-168.5). The wood fiber pretreatment liquid has the advantages that the production energy consumption is low, and the fiber yield rate is high.

Description

technical field [0001] The present application relates to a pretreatment liquid, in particular to a pretreatment liquid used for wood fiber pretreatment; at the same time, the present application also relates to a manufacturing method of a fiberboard using the pretreatment liquid. Background technique [0002] Medium / high density fiber-based panel is the most popular, stable quality and most mature technology in the market. Usually, in order to obtain fiber raw materials, it is necessary to go through thermal grinding of wood shavings and drying of fibers, and then the obtained fiber raw materials can be used for hot pressing of fiberboards. The thermal grinding process has high requirements, such as the uniformity of moisture content of wood chips, thermal grinding time, log cooking degree, etc., and the fiber yield of 95% (effective fiber ratio that can be used for hot pressing) has also become The bottleneck of the material yield in the heat grinding process. [0003] C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N1/00B27N1/02B27K3/00B27K3/12B27K3/52B27N3/12B27N3/04B27N3/00
CPCB27K3/002B27K3/12B27K3/52B27N1/00B27N1/0209B27N3/002B27N3/04B27N3/12
Inventor 黄润州贾翀汤正捷周定国张洋徐信武王军锋
Owner NANJING FORESTRY UNIV
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