CN104400862B - Method for increasing poplar peeling efficiency in man-made forest - Google Patents
Method for increasing poplar peeling efficiency in man-made forest Download PDFInfo
- Publication number
- CN104400862B CN104400862B CN201410570337.6A CN201410570337A CN104400862B CN 104400862 B CN104400862 B CN 104400862B CN 201410570337 A CN201410570337 A CN 201410570337A CN 104400862 B CN104400862 B CN 104400862B
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- China
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- raw material
- peeling
- plantation
- poplar
- poplar wood
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
- B27L1/00—Debarking or removing vestiges of branches from trees or logs; Machines therefor
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Mechanical Engineering (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a method for increasing poplar peeling efficiency in a man-made forest. Poplar wood with diameter being 10-30cm in the man-made forest is selected as raw material. Before a wood peeling machine is used for peeling the raw material, the following steps are performed in turn: (1) sealing the raw material, thereby preventing water serving as a pressure transmitting medium during a pressure processing process from permeating into the raw material, and (2) performing pressure-maintaining treatment on the sealed raw material for 2-5 minutes under the pressure at 200-400MPa. The shear stress of a peeling knife needed for peeling the poplar wood in the man-made forest, acquired according to the method provided by the invention is reduced to below 10kgf/cm＜2＞, so that the poplar peeling efficiency in the man-made forest is increased.
Description
Technical field
The present invention relates to wood processing field, particularly to a kind of method improving Poplar wood in plantation peeling efficiency.
Background technology
Timber peeling is the important procedure in the timber course of processing, and before the eighties in 20th century, China's timber peeling is always with people
Work is main, and labor intensity is big, and production efficiency is low.Late 1980s, China just developed first generation log bark removing machine product,
So far, the mechanization of timber peeling is the most substantially achieved.But, existing timber peeling technology there is also a lot of problem, mainly
Show that technical equipment power demand is big, energy consumption high on.This is primarily due to, it usually needs bigger shearing force could realize wood
The peeling of material, the spud shear pressure stress needed for usual poplar peeling is 100-200kgf/cm2.This improves peeling undoubtedly
Power requirement, the material performance requirement of spud and the horsepower requirements of machinery.A kind of convenient, timber peeling technology of low energy consumption
Urgently research and develop, but this must solve timber peeling needed for the big problem of spud shear stress.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method improving Poplar wood in plantation peeling efficiency, owing to using the present invention
Method gained Poplar wood in plantation peeling needed for spud shear stress can be reduced to 10kgf/cm2Hereinafter, therefore can improve
Poplar wood in plantation peeling efficiency.
In order to solve above-mentioned technical problem, the present invention provides a kind of method improving Poplar wood in plantation peeling efficiency: choose a diameter of
The Poplar wood in plantation timber of 10-30cm (5-25 is raw) is raw material, before using log bark removing machine that raw material is carried out peeling, first depends on
Secondary following steps:
1., raw material is carried out encapsulation process, using prevent in pressing process as transmission medium water penetrate into raw material (timber)；
2., the pressurize under the pressure of 200-400Mpa of the raw material after encapsulation process is processed 2-5 minute (at supertension process vessel
Inside carry out).
The improvement of method improving Poplar wood in plantation peeling efficiency as the present invention: step 1. in, raw material is carried out polyethylene and moulds
Material film parcel, thus realize sealing.
The further improvements in methods improving Poplar wood in plantation peeling efficiency as the present invention:
During with the Poplar wood in plantation timber of 10-15cm diameter for raw material, step be 2. by the raw material after encapsulation process in
Under the pressure of 300～400Mpa, pressurize processes 5 minutes；
During with the Poplar wood in plantation timber of 16-22cm diameter for raw material, 2. step is in 400Mpa by the raw material after encapsulation process
Pressure under pressurize process 5 minutes；
During with the Poplar wood in plantation timber of 23-30cm diameter for raw material, 2. step is in 400Mpa by the raw material after encapsulation process
Pressure under pressurize process 5 minutes.
In the present invention, it is typically based on the process chamber diameter of extra-high tension unit, chooses diameter 10-30cm (5-25 is raw)
Poplar wood in plantation be raw material.
The present invention is that Poplar wood in plantation raw material (belt leather) is carried out under the high static pressure of 200-400MPa high voltage units, it was found that
The spud shear stress needed for Poplar wood in plantation peeling after the high voltage units finally given can be reduced to 10kgf/cm2Below.
The mechanism of the present invention is explained as follows:
During supertension processing timber, veneer and timber practicality part all can deform upon under stress, but, veneer and timber are real
Density and fibre structure by part have significantly difference, during deforming upon under stress, veneer and timber practicality portion
Branch carries out deformation with different speed of deformation, and this makes veneer and timber practicality part achieve in pressing process mutually
Separate, and then the spud shear stress needed for making follow-up peeling processing significantly declines.
Using the Poplar wood in plantation timber after sealing of the present invention and pressurization processed, the spud needed for its peeling is sheared
Stress can be reduced to 10kgf/cm2Below.Therefore, the present invention can easily, the peeling realizing Poplar wood in plantation of low energy consumption,
Thus realize improving the efficiency of Poplar wood in plantation peeling.
Detailed description of the invention
Embodiment:
Select fell in March, 2014, diameter at the Poplar wood in plantation of below 10-30cm, to the artificial forest wood chosen as former
Material carries out polyethylene plastic film parcel, sealing, puts into supertension process vessel, carries out pressurize in 2-5 minute under 200-400MPa
The HIGH PRESSURE TREATMENT of time, takes out after process.Use the adjustable log bark removing machine of shearing force to Poplar wood in plantation before and after treatment
Carry out peeling process, it is thus achieved that realize the spud minimum shear stress of peeling processing.
Table 1～3 is the density correction data of the Poplar wood in plantation processed through different pressures and dwell time.
Visible, use above-mentioned process conditions, effectively the spud shear stress needed for peeling can be reduced to 10kgf/cm2
Below.But pressure is too small or dwell time too short DeGrain, pressure is excessive or dwell time long meeting causes timber crack,
And then formation waste material.
The stripping needed for the Poplar wood in plantation peeling that different pressures and dwell time process of the poplar of 1,5 years raw 10-15cm diameters of table
Dermatotome shear stress (unit: kgf/cm2)
The poplar of 2,15 years raw 16-22cm diameters of table is needed for the Poplar wood in plantation peeling that different pressures and dwell time process
Spud shear stress (unit: kgf/cm2)
The poplar of 3,25 years raw 23-30cm diameters of table is needed for the Poplar wood in plantation peeling that different pressures and dwell time process
Spud shear stress (unit: kgf/cm2)
Finally, in addition it is also necessary to be only several specific embodiments of the present invention it is noted that listed above.Obviously, the present invention is not
It is limited to above example, it is also possible to have many deformation.Those of ordinary skill in the art directly can lead from present disclosure
The all deformation gone out or associate, are all considered as protection scope of the present invention.
Claims (2)
1. the method improving Poplar wood in plantation peeling efficiency, is characterized in that: the Poplar wood in plantation timber choosing a diameter of 10-30cm is raw material, before using log bark removing machine that raw material is carried out peeling, and following steps the most successively:
1., raw material is carried out encapsulation process, using prevent in pressing process as transmission medium water penetrate into raw material；
2., with the Poplar wood in plantation timber of 10-15cm diameter for raw material time, the pressurize under the pressure of 300～400MPa of the raw material after encapsulation process is processed 5 minutes；
During with the Poplar wood in plantation timber of 16-22cm diameter for raw material, the pressurize under the pressure of 400MPa of the raw material after encapsulation process is processed 5 minutes；
During with the Poplar wood in plantation timber of 23-30cm diameter for raw material, for the pressurize under the pressure of 400MPa of the raw material after encapsulation process is processed 5 minutes.
The method of raising Poplar wood in plantation peeling efficiency the most according to claim 1, is characterized in that: described step 1. in, raw material is carried out polyethylene plastic film parcel, thus realizes sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410570337.6A CN104400862B (en) | 2014-10-23 | 2014-10-23 | Method for increasing poplar peeling efficiency in man-made forest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410570337.6A CN104400862B (en) | 2014-10-23 | 2014-10-23 | Method for increasing poplar peeling efficiency in man-made forest |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104400862A CN104400862A (en) | 2015-03-11 |
| CN104400862B true CN104400862B (en) | 2017-01-11 |
Family
ID=52638560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410570337.6A Expired - Fee Related CN104400862B (en) | 2014-10-23 | 2014-10-23 | Method for increasing poplar peeling efficiency in man-made forest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104400862B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107415000B (en) * | 2017-07-10 | 2019-02-19 | 浙江大学 | The method that Poplar wood in plantation carries out level dyeing using water-soluble dye |
| CN108908593B (en) * | 2018-08-02 | 2020-04-03 | 安徽昌发实业有限公司 | Pretreatment method for peeling fast-growing poplar |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0250803A (en) * | 1988-08-13 | 1990-02-20 | Marunaka Seisakusho:Kk | Bark-peeling device of raw wood |
| EP1701775B2 (en) * | 2003-11-19 | 2012-06-13 | NATEX Prozesstechnologie GesmbH | A method and process for controlling the temperature, pressure and density profiles in dense fluid processes and associated apparatus |
| CN2801440Y (en) * | 2005-06-02 | 2006-08-02 | 王玉磊 | Raw wood peeling machine |
| CN100408289C (en) * | 2006-08-15 | 2008-08-06 | 马小冈 | Method for making expanding wood plug |
| CN103737684B (en) * | 2013-12-26 | 2016-02-24 | 浙江大学 | Promote the method for artificial forest wood density |
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2014
- 2014-10-23 CN CN201410570337.6A patent/CN104400862B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN104400862A (en) | 2015-03-11 |
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| CB03 | Change of inventor or designer information |
Inventor after: Yu Yong Inventor after: Zhang Fengming Inventor after: Pan Fang Inventor after: Zhu Songming Inventor after: Su Guangming Inventor after: Xu Menglong Inventor before: Yu Yong Inventor before: Pan Fang Inventor before: Zhu Songming Inventor before: Su Guangming Inventor before: Xu Menglong |
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| COR | Change of bibliographic data | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20211023 |