CN106142251A - The immersion process of willow soak cycle is shortened in dynamic transformation mode - Google Patents
The immersion process of willow soak cycle is shortened in dynamic transformation mode Download PDFInfo
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- CN106142251A CN106142251A CN201610510495.1A CN201610510495A CN106142251A CN 106142251 A CN106142251 A CN 106142251A CN 201610510495 A CN201610510495 A CN 201610510495A CN 106142251 A CN106142251 A CN 106142251A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
- B27K3/08—Impregnating by pressure, e.g. vacuum impregnation
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- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention belongs to timber treatment technology field, provide a kind of immersion process shortening willow soak cycle in dynamic transformation mode, there is provided high pressure hydration environment and low pressure to soak environment, described high pressure hydration environment and low pressure immersion environment for poplar when being included in immersion poplar to be repeatedly alternately present.Compared with prior art, the beneficial effects of the present invention is: technique can directly be applied mechanically on existing, thus implement conveniently；Shorten the time that poplar soaks greatly, thus improve immersion efficiency.
Description
Technical field
The invention belongs to timber treatment technology field, relate to a kind of willow immersion process, be related specifically to a kind of with dynamically
Transformation mode shortens the immersion process of willow soak cycle.
Background technology
China is typical Shaolin country, and whole nation afforestation rate is 20.36%.In recent years annual imported timber 100,000,000 cubes
Rice is above (every Year's consumption is about 25 billion cubic meters).Along with the enforcement of country's wildwood protected project, artificial forest provides
Source becomes the target of concern.Whole nation artificial forest protected area is 62,000,000 hm at present3, ranking first in the world, its timber is in building, family
The fields such as tool are with a wide range of applications.
Poplar Plantation has yield high, and growth is fast, the advantages such as cutting cycle is short, but its density of wood is low, material is soft, color
Shallow, moisture content is high and skewness, be easily generated the manufacturing deficiencies such as dry-shrinkage deformed and Veneer Cutting fluffing and mechanical strength be poor, surface
Hardness is low, wearability is low, limits it and uses, and compared with wildwood timber, its material and dicoration differ greatly.The most right
It is the most necessary that poplar carries out chemical modification.
In the middle of prior art, poplar is carried out the most modified main employing vacuum technology, but this process is deposited
Shortcoming be that treating capacity is the least, high to equipment requirements degree, simultaneously because single decompression maintains and pressurization maintains so that timber
Internal structure conversion is single, causes soak time long, poor effect.And for example Publication No. " 103203786A ", patent name is
" a kind of modifying cotton wood technique ", the technique which describing a kind of extensive process poplar, but its distinct disadvantage is that the process time is non-
The longest.
Therefore, it is necessary to provide the technical scheme improved, to overcome technical problem present in prior art.
Summary of the invention
It is an object of the invention to, it is provided that a kind of immersion process shortening willow soak cycle in dynamic transformation mode, have
Effect improves the immersion speed during poplar processes.
In order to achieve the above object, the invention provides a kind of immersion shortening willow soak cycle in dynamic transformation mode
Method, provides high pressure hydration environment and low pressure to soak environment for poplar when being included in immersion poplar, described high pressure hydration environment and
Low pressure is soaked environment and is repeatedly alternately present.During high pressure hydration, lumber fibre is compressed, and between fiber and fiber, space diminishes, in it
Material be extruded discharge, and low pressure is soaked and is exactly made the space between fiber and fiber become big, contributes to pool inner water body to wood
Carry out washing inside material washing.Utilize high-pressure and low-pressure checker repeatedly, can make lumber fibre all the time in dynamic mapping state, by one
A little dead angles or tubule space discharge completely, thus improve immersion efficiency, shorten soak time.
Another kind of preferably scheme, initial pressure-cycling includes two kinds of situations:
The first situation, first provides high pressure hydration environment, then changes low pressure into and soaks environment；
The second situation, first provides low pressure to soak environment, then changes high pressure hydration environment into；
Wherein, in the first scenario, described pressure-cycling is a continuous high pressure hydration environment and a low pressure immersion
The adjacent appearance of environment；In the latter case, described pressure-cycling is that a continuous low pressure soaks environment and sub-high pressure leaching
The adjacent appearance of bubble environment.It is further preferred that described pressure-cycling number of times is n time, be positioned in described n pressure-cycling
1 time pressure-cycling lasts longer than the 2nd the pressure-cycling persistent period to n-th.Preferred again, the 1st transformation
The low pressure immersion environment persistent period in circulation is 1.1～10 of the high pressure hydration environment persistent period in the 1st pressure-cycling
Times.Describe it can be appreciated that occur owing to high pressure and low pressure convert according to such scheme, the atmospheric pressure state occurred first only height
One in pressure and low pressure, is then transformed to and the most different another kind of atmospheric pressure states.Air pressure circulation first is particularly significant,
Timber is owing to starting immersion, and inside does not have liquid to enter or enters seldom, and the 1st time pressure-cycling keeps the long period to contribute to
Fully open the immersion potentiality of timber, make the 1st pressure-cycling be fully immersion as far as possible.In the first scenario, high
Extruding present low pressure front end, the immersion under high pressure can be regarded as provides a potential energy of deformation as wood internal fiber so that after when
When continuous low pressure occurs, fiber bounce-back is strong so that it is quickly open.And in the latter case, i.e. low pressure occurs in high-voltage front end,
Low pressure makes swelling of wood, fiber open, and accelerates the exchange between inner material and immersion liquid, carries out high pressure leaching the most again
Bubble, its result is got twice the result with half the effort.Above it can be seen that the 1st circulation is the key in all circulations, therefore follow in whole transformation
During ring, the persistent period of the 1st pressure-cycling to be longer than the persistent period of other pressure-cyclings.And follow the 1st transformation
In ring, low pressure is the key of whole immersion, effectively opening of fiber, whole process can be made to soak and fully carried out, therefore
The low pressure immersion environment persistent period in the defined in preferred scheme the 1st pressure-cycling is the height in the 1st pressure-cycling
Pressure soaks 1.1～10 times of environment persistent period.
Same it is further preferred that be in the 2nd time to all high pressure hydration environment persistent period in n-th pressure-cycling
And/or the low pressure immersion environment persistent period is the most identical, soaks the environment persistent period for the low pressure in described 1st pressure-cycling
0.02～0.9 times.
Or it is same it is further preferred that described pressure-cycling number of times is 2～144 times.Concrete pressure-cycling number of times can
Size, timber that concrete tonnage according to timber, timber are cut into need the technique degree of depth to be processed etc. suitably to regulate.Above-mentioned side
Case further preferred, the total soak time of poplar is less than 48 hours, and the maximal pressure span of described high pressure hydration environment exists
2.0～5.0MPa, described low pressure soaks the minimal pressure span of environment 0.03～0.05MPa.
Preferably, soak time is proportional with poplar quality.
Preferably, the transformation process of described high pressure hydration environment and low pressure immersion environment meets linear function model.
Preferably, the transformation process of described high pressure hydration environment and low pressure immersion environment meets SIN function model.
Compared with prior art, the beneficial effects of the present invention is:
Technique can directly be applied mechanically on existing, thus implements conveniently；Shorten the time that poplar soaks greatly, from
And improve immersion efficiency.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following example will assist in the technology of this area
Personnel are further appreciated by the present invention, but limit the present invention the most in any form.It should be pointed out that, the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement.These broadly fall into the present invention
Protection domain.Following example cited by the present invention, all as a example by poplar acid-base neutralization soaking technology, and other immersion
Technique can do corresponding deformation accordingly, and the technique after deformation is without departing from protection scope of the present invention certainly.
Embodiment 1
120 tons of timber need to be soaked.
First original poplar is carried out pH value mensuration, to determine that later stage immersion process is to select acid pond to carry out soaking neutralization.
Then poplar entirety is carried out peeling, then carries out cutting the generation processing poplar timber block obtaining the large volume such as multiple.To obtain
Timber block put in the fermentation vat preparing liquid medicine, and sealing potential device is installed, sets up pressure-cycling environment.
In transformation immersion process, first providing high pressure, according to linear function, pressure is slowly increased to 2MPa, the most gradually
It is decompressed to negative pressure be slowly increased, when negative pressure increases to 0.05MPa, again boosts to enter second time pressure-cycling.Total immersion
48 hours time, altogether carrying out 144 transformations, the 2nd time is the most equal to the time of n-th transformation, and high pressure therein and
The low pressure retention time is the most equal.The time of the 2nd pressure-cycling is 0.9 times of the 1st pressure-cycling persistent period, and the 1st
Persistent period is high pressure 1.1 times of secondary pressure-cycling mesolow.
After completing whole timber immersion process, taking-up timber to clear water reserviors carries out washing and washes or Dipping, then
Pull out be dried process and sofening treatment, finally regulation moisture content to 6%～8% both preliminary timber finished product.
Embodiment 2
45 tons of timber need to be soaked.
First original poplar is carried out pH value mensuration, to determine that later stage immersion process is to select alkali pond to carry out soaking neutralization.
Then poplar entirety is carried out peeling, then carries out cutting the generation processing poplar timber block obtaining the large volume such as multiple.To obtain
Timber block put in the fermentation vat preparing liquid medicine, and sealing potential device is installed, sets up pressure-cycling environment.
In transformation immersion process, first providing low pressure, according to SIN function, pressure is gradually reduced to 0.03MPa, the most again
Gradually being pressurized to malleation be slowly increased, when malleation increases to 5MPa, blood pressure lowering is to enter second time pressure-cycling again.Total immersion
48 hours time, altogether carrying out 2 transformations, high pressure and low pressure persistent period in the 2nd pressure-cycling are equal, and simultaneously the 2nd
The time of secondary pressure-cycling is 0.5 times of the 1st pressure-cycling persistent period, and during the 1st pressure-cycling mesolow lasting
Between be 10 times of high pressure.
After completing whole timber immersion process, taking-up timber to clear water reserviors carries out washing and washes or Dipping, then
Pull out be dried process and sofening treatment, finally regulation moisture content to 6%～8% both preliminary timber finished product.
Embodiment 3
80 tons of timber need to be soaked.
First original poplar is carried out pH value mensuration, to determine that later stage immersion process is to select alkali pond to carry out soaking neutralization.
Then poplar entirety is carried out peeling, then carries out cutting the generation processing poplar timber block obtaining the large volume such as multiple.To obtain
Timber block put in the fermentation vat preparing liquid medicine, and sealing potential device is installed, sets up pressure-cycling environment.
In transformation immersion process, first providing high pressure, according to SIN function, pressure is gradually increased to 4MPa, the most again by
Decrescence it is depressed into negative pressure to be slowly increased, when negative pressure increases to 0.04MPa, again boosts to enter second time pressure-cycling.Total leaching
48 hours bubble time, altogether carrying out 96 transformations, high pressure and low pressure persistent period in the 2nd pressure-cycling are equal, simultaneously
The time of the 2nd pressure-cycling is 0.02 times of the 1st pressure-cycling persistent period, and the holding of the 1st pressure-cycling mesolow
The continuous time is 3 times of high pressure.
After completing whole timber immersion process, taking-up timber to clear water reserviors carries out washing and washes or Dipping, then
Pull out be dried process and sofening treatment, finally regulation moisture content to 6%～8% both preliminary timber finished product.
Claims (10)
1. shorten the immersion process of willow soak cycle in dynamic transformation mode, when being included in immersion poplar, provide high pressure for poplar
Soak environment and low pressure soaks environment, it is characterised in that described high pressure hydration environment and low pressure are soaked environment and is repeatedly alternately present.
The immersion process shortening willow soak cycle in dynamic transformation mode the most according to claim 1, it is characterised in that
Initial pressure-cycling includes two kinds of situations:
The first situation, first provides high pressure hydration environment, then changes low pressure into and soaks environment；
The second situation, first provides low pressure to soak environment, then changes high pressure hydration environment into；
Wherein, in the first scenario, described pressure-cycling is a continuous high pressure hydration environment and a low pressure immersion environment
Adjacent appearance；In the latter case, described pressure-cycling is that a continuous low pressure soaks environment and a high pressure hydration ring
The adjacent appearance in border.
The immersion process shortening willow soak cycle in dynamic transformation mode the most according to claim 2, it is characterised in that
Described pressure-cycling number of times is n time, is positioned at the in described n pressure-cycling the 1st pressure-cycling and lasts longer than the 2nd time extremely
The pressure-cycling persistent period of n-th.
The immersion process shortening willow soak cycle in dynamic transformation mode the most according to claim 3, it is characterised in that
The low pressure immersion environment persistent period in 1st pressure-cycling is the high pressure hydration environment persistent period in the 1st pressure-cycling
1.1～10 times.
5. according to the described immersion process shortening willow soak cycle in dynamic transformation mode arbitrary in claim 2～3, its
It is characterised by, is in the 2nd time and soaks ring to all high pressure hydration environment persistent period in n-th pressure-cycling and/or low pressure
The border persistent period is the most identical, soaks 0.02～0.9 times of environment persistent period for the low pressure in described 1st pressure-cycling.
The immersion process shortening willow soak cycle in dynamic transformation mode the most according to claim 2, it is characterised in that
Described pressure-cycling number of times is 2～144 times.
The immersion process shortening willow soak cycle in dynamic transformation mode the most according to claim 6, it is characterised in that
The total soak time of poplar be less than 48 hours, the maximal pressure span of described high pressure hydration environment 2.0～5.0MPa, institute
State low pressure and soak the minimal pressure span of environment 0.03～0.05MPa.
The immersion process shortening willow soak cycle in dynamic transformation mode the most according to claim 1, it is characterised in that
Soak time is proportional with poplar quality.
The immersion process shortening willow soak cycle in dynamic transformation mode the most according to claim 1, it is characterised in that
Described high pressure hydration environment and low pressure are soaked the transformation process of environment and are met linear function model.
The immersion process shortening willow soak cycle in dynamic transformation mode the most according to claim 1, its feature exists
In, described high pressure hydration environment and low pressure are soaked the transformation process of environment and are met SIN function model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610510495.1A CN106142251A (en) | 2016-06-27 | 2016-06-27 | The immersion process of willow soak cycle is shortened in dynamic transformation mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610510495.1A CN106142251A (en) | 2016-06-27 | 2016-06-27 | The immersion process of willow soak cycle is shortened in dynamic transformation mode |
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| CN106142251A true CN106142251A (en) | 2016-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610510495.1A Pending CN106142251A (en) | 2016-06-27 | 2016-06-27 | The immersion process of willow soak cycle is shortened in dynamic transformation mode |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0607625A1 (en) * | 1993-01-19 | 1994-07-27 | Sumitomo Corporation | Method of and apparatus for injecting treating liquid into wood and porous inorganic material |
| CN101125433A (en) * | 2006-08-18 | 2008-02-20 | 魏象 | Wood dyeing method using pressure-increasing and pressure-decreasing technology |
-
2016
- 2016-06-27 CN CN201610510495.1A patent/CN106142251A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0607625A1 (en) * | 1993-01-19 | 1994-07-27 | Sumitomo Corporation | Method of and apparatus for injecting treating liquid into wood and porous inorganic material |
| CN101125433A (en) * | 2006-08-18 | 2008-02-20 | 魏象 | Wood dyeing method using pressure-increasing and pressure-decreasing technology |
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Application publication date: 20161123 |
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