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Method for improving artificial pine forest peeling efficiency

A plantation and high-efficiency technology, applied in the direction of pressure impregnation, etc., can solve the problem of large shear stress of the peeling knife, and achieve the effect of improving efficiency and reducing energy consumption

Inactive Publication Date: 2015-03-25
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A convenient, low-energy wood peeling technology needs to be developed urgently, but this must solve the problem of large shear stress of the peeling knife required for wood peeling

Method used

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  • Method for improving artificial pine forest peeling efficiency
  • Method for improving artificial pine forest peeling efficiency
  • Method for improving artificial pine forest peeling efficiency

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0015] Choose plantation pine wood with a diameter below 10-30cm harvested in March 2014, wrap and seal the selected plantation pine wood with polyethylene plastic film, put it into an ultra-high pressure processing container, and carry out 200-400MPa pressure 2 - High pressure treatment with a dwell time of 5 minutes, removal after treatment. The wood peeling machine with adjustable shear force is used to peel the plantation pine wood before and after treatment, so as to obtain the minimum shear stress of the peeling knife to realize the peeling process.

[0016] Tables 1 to 3 are the density comparison data of plantation pine wood treated with different pressures and pressure holding times.

[0017] It can be seen that using the above process conditions, the shear stress of the peeling knife required for peeling can be effectively reduced to 10kgf / cm 2 the following. However, if the pressure is too low or the pressure holding time is too short, the effect is not obvious. I...

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PUM

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Abstract

The invention discloses a method for improving the artificial pine forest peeling efficiency. The method comprises the following steps: selecting artificial pine forest wood with the diameter of 10-30cm as a raw material, and before peeling the raw material with a wood peeling machine, performing the following steps in sequence: 1, carrying out sealing treatment on the raw material to prevent water used as a pressure transmitting medium from permeating into the raw material during pressure processing; and 2, carrying out pressure keeping treatment on the sealed raw material under the pressure of 200-400Mpa for 2-5 minutes. According to the method, the shearing stress of a peeling knife required for peeling the artificial pine forest can be reduced to be below 10 kgf / cm<2>, so that the artificial pine forest peeling efficiency can be improved.

Description

technical field [0001] The invention relates to the field of wood processing, in particular to a method for improving the peeling efficiency of pine wood in artificial forests. Background technique [0002] Wood peeling is an important procedure in the process of wood processing. Before the 1980s, my country's wood peeling has always been manual, with high labor intensity and low production efficiency. At the end of the 1980s, my country developed the first generation of wood peeling machine products. So far, the mechanization of wood peeling has been basically realized. However, there are still many problems in the existing wood peeling technology, which are mainly manifested in the large power demand and high energy consumption of technical equipment. This is mainly because a large shearing force is usually required to achieve the peeling of the wood. Usually, the shearing pressure stress of the peeling knife required for pine peeling is 150-200kgf / cm 2 . This undoubted...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/08
CPCB27K3/08
Inventor 于勇潘芳朱松明苏光明徐梦龙
Owner ZHEJIANG UNIV