CN104552518B - A kind of dehumidification process of redwood - Google Patents
A kind of dehumidification process of redwood Download PDFInfo
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- CN104552518B CN104552518B CN201510011736.3A CN201510011736A CN104552518B CN 104552518 B CN104552518 B CN 104552518B CN 201510011736 A CN201510011736 A CN 201510011736A CN 104552518 B CN104552518 B CN 104552518B
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- 240000005020 Acaciella glauca Species 0.000 title claims abstract description 132
- 235000003499 redwood Nutrition 0.000 title claims abstract description 132
- 238000000034 method Methods 0.000 title claims abstract description 59
- 238000007791 dehumidification Methods 0.000 title claims abstract description 28
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 84
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 22
- 238000001802 infusion Methods 0.000 claims description 14
- 238000002791 soaking Methods 0.000 claims description 9
- 230000002085 persistent effect Effects 0.000 claims description 4
- 238000010792 warming Methods 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 3
- 238000002386 leaching Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 9
- 238000000605 extraction Methods 0.000 abstract description 8
- 238000010521 absorption reaction Methods 0.000 abstract description 7
- 238000001704 evaporation Methods 0.000 abstract description 7
- 230000008020 evaporation Effects 0.000 abstract description 7
- 238000007654 immersion Methods 0.000 abstract description 2
- 241000220324 Pyrus Species 0.000 description 23
- 235000021017 pears Nutrition 0.000 description 23
- 238000001035 drying Methods 0.000 description 8
- 239000002023 wood Substances 0.000 description 7
- 238000012545 processing Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 238000009835 boiling Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 241000158728 Meliaceae Species 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 150000002576 ketones Chemical class 0.000 description 2
- 235000014593 oils and fats Nutrition 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 244000061458 Solanum melongena Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000002156 adsorbate Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Classifications
-
- 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
- B27K1/00—Damping wood
-
- 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
- B27K3/34—Organic impregnating agents
-
- 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
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/04—Combined bleaching or impregnating and drying of wood
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Pretreatment Of Seeds And Plants (AREA)
Abstract
The invention provides the dehumidification process of a kind of redwood, belong to timber field.The step such as including supercharging immersion, centrifugal, steam convection current, the dehumidification process of this redwood, by the way of supercharging, forces the acetone liquid as dehydrant to enter the portion of water in redwood, in absorption redwood, reach the purpose of preliminarily dried, make follow-up dehumidifying burden alleviate.Centrifuging being used for the dehumidifying of redwood, by axial xylem, the moisture in redwood is transferred to two ends, make moisture moving resistance reduce, evaporation is completely.This technique changes the shift direction of moisture in redwood cleverly makes dehumidifying work become simple, and makes effect on moisture extraction good.Solve existing dehumidification process effect on moisture extraction poor, the problems such as dehumidifying difficulty is big.
Description
Technical field
The invention belongs to timber field, relate to the dehumidification process of a kind of redwood.
Background technology
Redwood, the general designation of China's furniture woods high-end, famous and precious, initially refer to the hard of redness
Wood, kind is more；After last century the eighties, the demand of mahogany furniture is increased by everybody
Adding, industry is urgently to be speculated, and country has carried out specification according to indexs such as density to redwood,
Redwood specification is: two sections, five genus, eight classes, 33 kinds.Redwood because of poor growth,
Material is hard, trophophase all more than the centuries, originate in a lot of redwood of south China,
As far back as remaining little of just being cut down in period bright, clear, redwood of today, mostly originate in
Southeast Asia, Africa, there are cultivation cultivation and introducing and planting in China Guangdong, Yunnan.The timber heart
Sapwood difference is obvious, and sapwood is narrow, canescence；The yellowish redness of heartwood, to redness of the skin or complexion, is exposed to
Becoming aubergine time in air for a long time, certain Huanghua Pear, Burma spend the timber such as pears, Door frame
Color will not take on a red color.Wood figure is attractive in appearance, and material is hard, durable, for valuable family
Tool and workmanship etc. use material.Redwood is that torrid areas pulse family wingceltis belongs to timber, mainly produces
In India, China Guangdong, Yunnan and the South Sea Islands are also produced, and are common famous and precious
Hardwood." redwood " is Jiangsu and Zhejiang Provinces and northern popular title, and Guangdong one band is commonly called as " acid branch wood ".
And to the general flow of mahogany furniture processing be at present: select materials, drying and processing, open
Tenon, engraving, assemble, scraped finish, japanning.Wherein, drying and processing is the dry step of redwood
Suddenly, now with the drying means method that generally uses steam convection current, change wet bulb temperature
Realize being dried with dry-bulb temperature, but the wood density of this kind of kind is relatively big, use steam
The method of convection current, steam is difficult to enter into the inside of redwood in the case of insufficient pressure,
Needing constant pressurization, drying cost is high and technology difficulty is big, makes redwood be difficult to be dried,
The most traditional steam convection current method be the method according to moisture gradient make wood internal from
Gradually moved to outside by water and absorption water, then evaporate, period, the side that moisture moves
To being moving radially along timber, need to cross over the xylem of different gradient, cross over difficulty
Greatly, need to overcome bigger resistance, here it is use the mode timber of steam convection current at present
The reason that drying effect is the best.
Summary of the invention
It is an object of the invention to for the above-mentioned problems in the prior art, it is provided that one
Planting the dehumidification process of redwood, the dehumidification process of this redwood makes redwood effect on moisture extraction good, dehumidifying
Completely, solve existing dehumidification process effect on moisture extraction poor, the problems such as dehumidifying difficulty is big.
The purpose of the present invention can be realized by following technical proposal: the dehumidifying of a kind of redwood
Technique, comprises the steps:
A, supercharging are soaked, and adding concentration in infusion chamber is the acetone liquid of 100%, will
Redwood through screening is completely soaked to acetone liquid, seals infusion chamber, passes through supercharging
Equipment carries out all directions supercharging to acetone liquid forces acetone liquid to enter inside redwood,
Increasing to pressure to 140MPa-150MPa, the persistent period is 15-16 hour；
Acetone industrially mainly as solvent for explosive, plastics, rubber, fiber,
In process hides, oils and fats, the industry such as spray paint, acetone industrially has and is used as dehydrant
Purposes, inventor, through attempting many times, is drawn by great many of experiments, in suitably pressure
Under power, acetone liquid " can get into " inside entering redwood, absorbs oneself in redwood
By water and partial adsorbates water, reach the purpose of preliminarily dried redwood, make follow-up dehumidifying work
Alleviate as burden.
B, centrifugal, redwood after soaking is placed on centrifuge and carries out high-speed constant-speed and be centrifuged
Rotating, the center of redwood is fixing on centrifuge, and rotary speed is 8000r/min
-9800r/min, the time controls at 7-8 hour；
Every is fixed in centrifuge through the redwood center soaked, passes through centrifuging
Carry out redwood rotating processing, the absorption in the Free water remained in making redwood and capillary tube
Water can move to the two ends of redwood, period, passes through centrifugal rotation, it is possible to fracture capillary
" hydrogen is strong to be combined " in pipe, make absorption water " breaing up phenomenon " occur, in follow-up step
In easily remove.
C, steam convection current, fix the redwood after centrifugal, use existing steam convection current method
Being dried, steam convection current method includes preheating, and making temperature is 40-50 degree Celsius and humidity
For 0.07kg/m3-0.08kg/m3Humid air cycle flow through redwood, the time is
60-70min, vapor (steam) velocity controls at 2m/s-3m/s；In the reducing temperature and humidity stage, make temperature
It is 0.04kg/m for 30-40 degree Celsius and humidity3-0.06kg/m3Humid air cycle
Flowing through above-mentioned redwood, the time is 50-60min, the intensification wet down stage, makes the temperature be
60-70 degree Celsius is 0.002kg/m with humidity3-0.004kg/m3Humid air cycle stream
Dynamic through above-mentioned redwood, until water content is 10%-11% in redwood, wherein, steam edge
Redwood radial through, the steam pressure at the two ends of redwood is 5MPa-6MPa, should
The steam of pressure and redwood two ends contact length are total for accounting for this redwood from the port of redwood two ends
The distance of long 10%-15%.
Steam convection current method in this step is existing conventional redwood drying process, different
Place is, steam has the pressure of 5MPa-6MPa at the two ends of redwood, due to
In the centrifugation step of previous step, the moisture major part in redwood has been transferred to the two of redwood
At end, accelerate redwood two ends are dried by the way of to steam boosting, make in redwood
Moisture from two ends evaporation and go out, traditional technique be make redwood by steam convection current method in
Moisture shifts from inside to outside according to the height of moisture gradient thus evaporates, but this process moisture
Needing to overcome the xylem of radially different gradient, resistance is relatively big, and portion of water is difficult to discharge,
This method makes moisture shift in the xylem that redwood is axial, is transferred to end, two ends heel row
Removing, resistance is little, and completely, effect on moisture extraction is good in moisture evaporation.
In the dehumidification process of above-mentioned a kind of redwood, in step a, described boost pressure
With the growth rate uniform-pressurizing of 2MPa/h-3MPa/h to 140MPa-150MPa.
Making acetone progressively infiltrate in redwood by uniform-pressurizing, osmotic effect is good.
In the dehumidification process of above-mentioned a kind of redwood, step c is carried out in dry kiln.
In the dehumidification process of above-mentioned a kind of redwood, described supercharging equipment is booster pump.
In the dehumidification process of above-mentioned a kind of redwood, described infusion chamber is square, supercharging
The quantity of pump is four, the four direction of the most corresponding infusion chamber.
In actual production, depending on physical device situation.
In the dehumidification process of above-mentioned a kind of redwood, also have between step b and step a
A1 in steps, removes acetone, and the redwood through soaking is warming up to 56-57 degree Celsius,
Stand 5-10 minute.
Although acetone has volatile characteristic, but still remains little in the redwood after soaking
The acetone liquid of part, the boiling point of acetone is 56.53 degrees Celsius, reaches third by heating
The boiling point of ketone, makes the acetone of residual volatilize.
Compared with prior art, the dehumidification process of this redwood has the advantage that
1, the dehumidification process of this redwood is by the way of supercharging, forces third as dehydrant
Ketone liquid enters in redwood, the portion of water in absorption redwood, reaches the mesh of preliminarily dried
, make follow-up dehumidifying burden alleviate.
2, centrifuging is used for the dehumidifying of redwood by the dehumidification process of this redwood, by redwood
Moisture be transferred to two ends by axial xylem, make moisture moving resistance reduce, steam
Distribute complete.
3, the dehumidification process of this redwood makes position at redwood two ends by the steam of pressurized treatments
In the moisture rapid evaporation at redwood two ends, efficiency is high, and evaporation is completely.
4, the dehumidification process of this redwood uses acetone as dehydrant, and acetone is colourless liquid,
Preventing from dyeing redwood in immersion process, acetone has volatile characteristic simultaneously, leaching
After bubble, major part acetone directly volatilizees, and decreases follow-up workload.
Detailed description of the invention
The dehumidification process of this redwood, comprises the steps:
A, supercharging are soaked, and adding concentration in infusion chamber is the acetone liquid of 100%, will
Redwood through screening is completely soaked to acetone liquid, seals infusion chamber, passes through supercharging
Equipment carries out all directions supercharging to acetone liquid forces acetone liquid to enter inside redwood,
Increasing to pressure to 140MPa-150MPa, the persistent period is 15-16 hour；Acetone is in work
In industry mainly as solvent for explosive, plastics, rubber, fiber, process hides, oils and fats,
In the industry such as spray paint, acetone industrially has the purposes being used as dehydrant, inventor
Through attempting many times, drawn by great many of experiments, under suitable pressure, acetone solution
Body " can get into " inside entering redwood, absorbs the Free water in redwood and part is inhaled
Attached water, reaches the purpose of preliminarily dried redwood, makes follow-up dehumidifying work load alleviate.
Supercharging equipment is booster pump.
In step a, boost pressure is with the growth rate uniform-pressurizing of 2MPa/h-3MPa/h
To 140MPa-150MPa.Make acetone progressively infiltrate in redwood by uniform-pressurizing, ooze
The most effective.
B, centrifugal, redwood after soaking is placed on centrifuge and carries out high-speed constant-speed and be centrifuged
Rotating, the center of redwood is fixing on centrifuge, and rotary speed is 8000r/min
-9800r/min, the time controls at 7-8 hour；By every in the middle part of the redwood soaked
Place is fixed in centrifuge, carries out rotating processing, in making redwood to redwood by centrifuging
Absorption water in the Free water of residual and capillary tube can move to the two ends of redwood, period,
Pass through centrifugal rotation, it is possible to " hydrogen is strong to be combined " in fracture capillary tube, make absorption water occur
" break up phenomenon ", easily remove in subsequent steps.
C, steam convection current, fix the redwood after centrifugal, use existing steam convection current method
Being dried, steam convection current method includes preheating, and making temperature is 40-50 degree Celsius and humidity
For 0.07kg/m3-0.08kg/m3Humid air cycle flow through redwood, the time is
60-70min, vapor (steam) velocity controls at 2m/s-3m/s；In the reducing temperature and humidity stage, make temperature
It is 0.04kg/m for 30-40 degree Celsius and humidity3-0.06kg/m3Humid air cycle
Flowing through above-mentioned redwood, the time is 50-60min, the intensification wet down stage, makes the temperature be
60-70 degree Celsius is 0.002kg/m with humidity3-0.004kg/m3Humid air cycle stream
Dynamic through above-mentioned redwood, until water content is 10%-11% in redwood, wherein, steam edge
Redwood radial through, the steam pressure at the two ends of redwood is 5MPa-6MPa, should
The steam of pressure and redwood two ends contact length are total for accounting for this redwood from the port of redwood two ends
The distance of long 10%-15%.Steam convection current method in this step is existing conventional redwood
Drying process, different places is, steam has 5MPa-6MPa at the two ends of redwood
Pressure, owing to, in the centrifugation step of previous step, the moisture major part in redwood is
It is transferred at the two ends of redwood, accelerates by the way of to steam boosting redwood two ends
Being dried, make the moisture in redwood go out from two ends evaporation, traditional technique is to pass through steam
Convection current method makes moisture in redwood shift from inside to outside according to the height of moisture gradient thus steams
Sending out, but this process moisture needs to overcome the xylem of radially different gradient, resistance is relatively big,
Portion of water is difficult to discharge, and this method makes moisture shift in the xylem that redwood is axial,
Being transferred to end, two ends heel row remove, resistance is little, and completely, effect on moisture extraction is good in moisture evaporation.
Step c is carried out in dry kiln, and every redwood is each attached in dry kiln.
Infusion chamber is square, and the quantity of booster pump is four, the four of the most corresponding infusion chamber
Individual direction.In actual production, depending on physical device situation.
Also there is between step b and step a step a1, remove acetone, to through soaking
Redwood be warming up to 56-57 degree Celsius, stand 5-10 minute.Easily wave although acetone has
The characteristic sent out, but in the redwood after soaking, still remain the acetone liquid of fraction, acetone
Boiling point be 56.53 degree, reach the boiling point of acetone by heating, make the acetone of residual wave
Send out.
Below for using traditional redwood dehumidification process and using the redwood dehumidifying tool of this technique
Body situation contrasts:
Raw material all uses 30 thickness through predrying (natural drying) to be 30mm length
Degree spends pears for the Burma of 20cm.
Traditional handicraft the most directly uses steam convection current method, and making temperature is 50 degrees Celsius and wet
Degree is 0.07kg/m3Humid air cycle flow through raw material, the time is 60min, steam
Vapour speed controlling is at 2m/s；In the reducing temperature and humidity stage, make temperature be 40 degrees Celsius and humidity is
0.06kg/m3Humid air cycle flow through raw material, the time is 60min, rise temperature drop
In the wet stage, making temperature be 70 degrees Celsius is 0.004kg/m with humidity3Humid air cycle
Flow through raw material.
After 35.4 hours work, by L606/L-606 Wood moisture tester
Detection, the moisture content in raw material does not changes, and last 30 Burma spend pears
Testing result is: wherein, and 18 moisture content are 13%-13.5%, and 10 moisture content are
11%-11.6%, also 2 moisture content are about 14%.
Below for the result after this technique of employing:
A, supercharging are soaked, and adding concentration in infusion chamber is the acetone liquid of 100%, will
Burma spends pears to be completely soaked to acetone liquid, seals infusion chamber, by supercharging equipment pair
Acetone liquid carry out all directions supercharging force acetone liquid enter Burma spend inside pears, increase
To pressure to 140MPa, the persistent period is 15 hours, and boost pressure is with the increasing of 2MPa/h
Long speed uniform-pressurizing is to 140MPa.
A1, removes acetone, spends pears to be warming up to 57 degrees Celsius the Burma through soaking, quiet
Put 10 minutes.
B, centrifugal, the Burma after soaking spends pears to be placed on centrifuge to carry out high-speed constant-speed
Centrifugal rotation, Burma spends the center of pears fixing on centrifuge, and rotary speed is
9000r/min, the time controls at 8 hours；
C, steam convection current, spend pears to fix the Burma after centrifugal, use existing steam pair
Stream method is dried, and steam convection current method includes preheating, and making temperature is 50 degrees Celsius and humidity
For 0.07kg/m3Humid air cycle flow through Burma and spend pears, the time is 60min,
Vapor (steam) velocity controls at 2m/s；In the reducing temperature and humidity stage, making temperature is 40 degrees Celsius and humidity
For 0.06kg/m3Humid air cycle flow through Burma and spend pears, the time is 60min,
In the intensification wet down stage, making temperature be 70 degrees Celsius is 0.004kg/m with humidity3Wet sky
Gas circulates spends pears through Burma, wherein, steam along Burma spend pears radial through,
Spending the steam pressure at the two ends of pears to be 6MPa in Burma, the steam of this pressure is spent with Burma
Pears two ends contact length be from Burma spend pears two ends port account for this Burma Hua Li overall length
The distance of 15%.
After 30 hours work, examined by L606/L-606 Wood moisture tester
Surveying, Burma spends the moisture content in pears not change, and last 30 Burma spend pears
Testing result be: the water content that 25 Burma spends pears is 11%-11.4%, 3 Burma
The water content of flower pears is 13.3%-13.5%, and the water content that 2 Burma spends pears is
14%-14.4%.
This experiment need the moisture control that Burma is spent pears below 12%, from more than
Data can be the clearest and the most definite the good and bad situation drawing traditional handicraft and the innovation technique, due to
Burma spends pears quality hard, and density is high, and traditional handicraft is difficult to dehumidify, and effect on moisture extraction is poor, logical
Crossing number it has been found that the dehumidification process effect on moisture extraction of this redwood is good, Burma spends the water content of pears
Can reach to manufacture the standard of furniture easily, and its work is imitated from the working time
Rate is higher than the efficiency using traditional handicraft.
As for other kinds of redwood, do not enumerate at this.
Specific embodiment described herein is only to present invention spirit theory for example
Bright.Those skilled in the art can be to described specific embodiment
Make various amendment or supplement or use similar mode to substitute, but without departing from
The spirit of the present invention or surmount scope defined in appended claims.
Claims (6)
1. a dehumidification process for redwood, comprises the steps:
A, supercharging are soaked, and adding concentration in infusion chamber is the acetone liquid of 100%, will
Redwood through screening is completely soaked to acetone liquid, seals infusion chamber, passes through supercharging
Equipment carries out all directions supercharging to acetone liquid forces acetone liquid to enter inside redwood,
Increasing to pressure to 140MPa-150MPa, the persistent period is 15-16 hour；
B, centrifugal, redwood after soaking is placed on centrifuge and carries out high-speed constant-speed and be centrifuged
Rotating, the center of redwood is fixing on centrifuge, and rotary speed is 8000r/min
-9800r/min, the time controls at 7-8 hour；
C, steam convection current, fix the redwood after centrifugal, use existing steam convection current method
Being dried, steam convection current method includes preheating, and making temperature is 40-50 degree Celsius and humidity
For 0.07kg/m3-0.08kg/m3Humid air cycle flow through redwood, the time is
60-70min, vapor (steam) velocity controls at 2m/s-3m/s；In the reducing temperature and humidity stage, make temperature
It is 0.04kg/m for 30-40 degree Celsius and humidity3-0.06kg/m3Humid air cycle
Flowing through above-mentioned redwood, the time is 50-60min, the intensification wet down stage, makes the temperature be
60-70 degree Celsius is 0.002kg/m with humidity3-0.004kg/m3Humid air cycle stream
Dynamic through above-mentioned redwood, until water content is 10%-11% in redwood, wherein, steam edge
Redwood radial through, the steam pressure at the two ends of redwood is 5MPa-6MPa, should
The steam of pressure and redwood two ends contact length are total for accounting for this redwood from the port of redwood two ends
The distance of long 10%-15%.
The dehumidification process of a kind of redwood the most according to claim 1, it is characterised in that
In step a, described boost pressure is with the growth rate uniform-pressurizing of 2MPa/h-3MPa/h
To 140MPa-150MPa.
The dehumidification process of a kind of redwood the most according to claim 1 and 2, its feature
Being, step c is carried out in dry kiln.
The dehumidification process of a kind of redwood the most according to claim 1 and 2, its feature
Being, described supercharging equipment is booster pump.
The dehumidification process of a kind of redwood the most according to claim 4, it is characterised in that
Described infusion chamber is square, and the quantity of booster pump is four, the four of the most corresponding infusion chamber
Individual direction.
The dehumidification process of a kind of redwood the most according to claim 1 and 2, its feature
It is that also there is between step b and step a step a1, removes acetone, to through leaching
The redwood of bubble is warming up to 56-57 degree Celsius, stands 5-10 minute.
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| CN107379169A (en) * | 2017-08-28 | 2017-11-24 | 阜南县腾祥工艺品有限公司 | A kind of drying means for reducing poplar season cracking rate |
| CN107521129A (en) * | 2017-09-29 | 2017-12-29 | 安徽德全新型建材科技有限公司 | One kind accelerates styrofoam aging method |
| CN107471366B (en) * | 2017-10-01 | 2019-10-01 | 莆田市荔城区聚慧科技咨询有限公司 | A kind of redwood dehumidification process based on inhibition cell activity |
| CN107520926B (en) * | 2017-10-01 | 2019-05-24 | 中山市唐明居家具有限公司 | A kind of drying means of redwood |
| CN114701029B (en) * | 2022-04-18 | 2023-06-02 | 中山市伍氏大观园家具有限公司 | Pretreatment process of rosewood |
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| JP2002086407A (en) * | 2000-09-11 | 2002-03-26 | Shinshiba Setsubi:Kk | Method for artificially drying lumber and apparatus for drying lumber |
| JP5049495B2 (en) * | 2006-01-19 | 2012-10-17 | 株式会社前川製作所 | Artificial drying method and system for wood |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101450497A (en) * | 2007-12-04 | 2009-06-10 | 王友平 | Wood steam treatment technique |
| CN103072166A (en) * | 2012-12-21 | 2013-05-01 | 中国林业科学研究院木材工业研究所 | Closed wood fiber drying method |
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