CN105643750B - The efficient charing of thick bamboo tube and free from flaw processing method - Google Patents
The efficient charing of thick bamboo tube and free from flaw processing method Download PDFInfo
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- CN105643750B CN105643750B CN201610103091.0A CN201610103091A CN105643750B CN 105643750 B CN105643750 B CN 105643750B CN 201610103091 A CN201610103091 A CN 201610103091A CN 105643750 B CN105643750 B CN 105643750B
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- bamboo tube
- thick bamboo
- pressure pan
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- temperature
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- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims abstract description 97
- 235000017491 Bambusa tulda Nutrition 0.000 title claims abstract description 97
- 241001330002 Bambuseae Species 0.000 title claims abstract description 97
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims abstract description 97
- 239000011425 bamboo Substances 0.000 title claims abstract description 97
- 238000003672 processing method Methods 0.000 title claims abstract description 9
- 229920002488 Hemicellulose Polymers 0.000 claims abstract description 13
- 238000001035 drying Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 9
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 6
- 230000018984 mastication Effects 0.000 claims abstract description 5
- 238000010077 mastication Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 claims 1
- 229920005610 lignin Polymers 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 229920002678 cellulose Polymers 0.000 abstract description 5
- 239000001913 cellulose Substances 0.000 abstract description 5
- 238000005260 corrosion Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000002023 wood Substances 0.000 description 15
- 239000000463 material Substances 0.000 description 6
- 241000233866 Fungi Species 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000000835 fiber Substances 0.000 description 2
- 230000003020 moisturizing effect Effects 0.000 description 2
- 239000003755 preservative agent Substances 0.000 description 2
- 230000002335 preservative effect Effects 0.000 description 2
- 244000099147 Ananas comosus Species 0.000 description 1
- 235000007119 Ananas comosus Nutrition 0.000 description 1
- 235000005018 Pinus echinata Nutrition 0.000 description 1
- 241001236219 Pinus echinata Species 0.000 description 1
- 235000017339 Pinus palustris Nutrition 0.000 description 1
- 235000005456 Pinus sylvestris var mongolica Nutrition 0.000 description 1
- 241000114025 Pinus sylvestris var. mongolica Species 0.000 description 1
- 240000002871 Tectona grandis Species 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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
- B27M1/06—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by burning or charring, e.g. cutting with hot wire
-
- 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
-
- 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
- B27K5/06—Softening or hardening of wood
Landscapes
- 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 present invention is efficient charing and the free from flaw processing method of thick bamboo tube, is comprised the technical steps that：（1）New fresh bamboo tube drill hole reason；（2）Thick bamboo tube is stacked and into pressure pan；（3）Hot mastication and charing process in circle thick bamboo tube pressure pan；（4）The drying process of circle thick bamboo tube.Fresh round thick bamboo tube is in the high temperature saturated vapor tank that temperature is 140~190 DEG C, utilize the quick heating of high-temperature steam, it is rapidly reached the softening point of lignin, cellulose and hemicellulose, while hemicellulose hydrolyzes rapidly under so high temperature and humidity, reaching the short time efficiently carbonizes purpose.The moisture in thick bamboo tube is discharged by dry hot gas again, dry shrink of thick bamboo tube will not cause to crack again, so fast charring processing and sofening treatment, the free from flaw of manufacture and the circle thick bamboo tube of charing, its dimensional stability is more preferably, also there is anti-corrosion and mothproof performance, be adapted to craft articles, furniture, bamboo building and outdoor scene.More excellent processing method is provided for bamboo industry.
Description
Technical field
Efficient charing and free from flaw processing method the present invention relates to thick bamboo tube, belong to the bamboo processing skill in timber industry
Art field.
Background technology
House decoration, furniture and outdoor wood materials mainly use wood, such as African pineapple lattice, Burma's teak, south
The hard broadleaf of the large diameter such as Mei Yibei and America oak, and the Russian pinus sylvestris var. mongolica through preservative processing, U.S.'s Southern Pine etc..Contain
The preservative of the toxic components such as heavy metal influences ecological environment using being lost in during bringing use with rain drop erosion, so
And as the development of social economy and the increase of population, the whole world constantly increase the demand of timber.Due to global environment pressure plus
Greatly, the environmental consciousness of national governments and the people are strengthened, it is understood that the importance to conserve forests, major diameter log supply are shorter and shorter
Lack, rely on wildwood log and pass by as the epoch of raw material.
14 provinces, municipalities and autonomous regions of the bamboo resource integrated distribution in China on the south the Changjiang river.Today, bamboo industry into
For the pillar industry in China bamboo producing region.China's bamboo grove area and bamboo wood yield increase by 1,300,000 hectares and 1,600,000 tons of nineteen fifty
It is added to 538.1 ten thousand hectares and 16.44 hundred million of 2011.These provide solid, sustainable for China's development bamboo processing
Resource base, the marvellous structure that bamboo wood cylindrical structure is naturally occurring, the equal strength in this structural composites mechanics are set
Principle is counted, can be used as structural wood, it is main to be built up using circle bamboo such as the bamboo tower of Yunnan the Dai nationality.But in use
Easily crack, limit the use scope as structural wood, and water, worm, rot fungi etc. is entered wherein, cause to damage by worms
Its service life is influenced with rotten wait.Therefore, the solution of the technical barrier such as dry, mothproof and good stability of the dimension of circle bamboo thick bamboo tube anticracking
Certainly, it is the necessary guarantee of realizing bamboo resource sustainable use.
The charing generally use of timber is first dried over dry, is kept in the environment of being then warming up to 180~220 DEG C again
1~4 it is small when, then also need logical steam to reach its equilibrium moisture content.The charing process time is grown, and process is comparatively laborious.
As can circle and is carbonized thick bamboo tube rapid draing, thus can will circle this material of bamboo as a kind of furniture material,
Construction material and outdoor scene material use, this is because dried free from flaw, is maintained for the original optimum structure of round bamboo
Intensity, the structure of outer layer densification cause entomogenous fungi etc. all to enter；After charing process, what the suitable entomogenous fungi in bamboo wood grew
Nutriment is decomposed, and its equilibrium moisture content is relatively low, and so its dimensional stability, corrosion resistant and mothproof ability just improve,
But used as landscape materials such as outdoor fences, improve it and use added value.
Fresh round bamboo is handled 10~60 minutes in the very high saturated vapor of temperature, using in bamboo wood contain lignin, fibre
The material of dimension element and hemicellulose, in the case where 140~190 DEG C of high temperature and bamboo wood moisture content are higher than more than 30%, easily occurs
The fast hydrolyzing of hemicellulose and carbonize principle, and at such high temperatures, the moisture in bamboo wood all becomes steam and easily arranges
Go out, on bamboo wood lignin, cellulose and hemicellulose softening point, dry shrink of thick bamboo tube will not cause out the temperature again
The defects of splitting, justifying bamboo season cracking will greatly reduce.
The content of the invention
Proposed by the present invention is that the efficient charing of thick bamboo tube and free from flaw processing method, its purpose are intended to utilize fresh round thick bamboo tube
In the high temperature saturated vapor tank that temperature is 140~190 DEG C, using the quick heating of high-temperature steam and damp and hot heat treatment, make bamboo
Cylinder moisturizing heating, is rapidly reached the softening point of lignin, cellulose and hemicellulose, at the same hemicellulose in so high temperature and
Hydrolyzed rapidly under humidity, reaching the short time efficiently carbonizes purpose.
In the case, the moisture in bamboo wood all becomes steam and easily discharges, while the temperature is in bamboo wood lignin, fiber
Element will be big with the defects of on hemicellulose softening point, dry shrink of thick bamboo tube will not cause to crack again, circle bamboo season cracking
It is big to improve.
So fast charring processing and sofening treatment, the free from flaw of manufacture and the circle thick bamboo tube of charing, its dimensional stability is more
It is good, and there is anti-corrosion and mothproof performance, it is adapted to craft articles, furniture and outdoor scene.
The technical solution of the present invention：The efficient charing of thick bamboo tube and free from flaw processing method, comprise the technical steps that：
（1）New fresh bamboo tube drill hole reason；
（2）Thick bamboo tube is stacked and promotes pressure pan；
（3）Hot mastication and charing process in circle thick bamboo tube pressure pan；
（4）The drying process of circle thick bamboo tube.
Advantages of the present invention：Using fresh round thick bamboo tube in the high temperature saturated vapor tank that temperature is 140~190 DEG C, utilize
The quick heating of high-temperature steam and damp and hot heat treatment, heat thick bamboo tube moisturizing, are rapidly reached lignin, cellulose and hemicellulose
Softening point, while hemicellulose hydrolyzes rapidly under so high temperature and humidity, reaching the short time efficiently carbonizes purpose.Herein
In the case of, the moisture in bamboo wood all becomes steam and easily discharges, while the temperature is in bamboo wood lignin, cellulose and hemicellulose
On softening point, thick bamboo tube will substantially improve the defects of drying contraction and will not cause to crack, justify bamboo season cracking.It is so fast
More preferably, and the circle thick bamboo tube has the dimensional stability of fast charing process and sofening treatment, the free from flaw of manufacture and the circle thick bamboo tube of charing
There are anti-corrosion and mothproof performance, be adapted to craft articles, furniture, bamboo building and outdoor scene.Make the free from flaw drying charcoal of round thick bamboo tube
The large-scale production of change is possibly realized, and is also provided safeguard for the sound development of bamboo industry.
Embodiment
Embodiment, the efficient charing of thick bamboo tube and free from flaw processing method are as follows：
（1）The new fresh bamboo tube of a diameter of 100mm（Just felling is no more than 20 days）, 1800mm long is cut on request, passes through length
Drill bit will longitudinally be got through in its ring every upper drilling, or position drills from bamboo green layer to tabasheer layer above and below ring, which can be with
Ensure that the inner and outer boundary of thick bamboo tube communicates；
（2）Thick bamboo tube is stacked and into pressure pan, and thick bamboo tube is placed on trolley, is then advanced it into pressure pan, shuts tank
Door；
（3）Hot mastication and charing process in circle thick bamboo tube pressure pan, it is 180 DEG C of high-temperature steams that temperature will be passed through in tank, just
When being passed through, first the cold air in tank and condensed water are discharged, the temperature for making temperature in tank rapidly rise to 180 DEG C, then keeps
12 minutes, be always saturated vapor within this time, in tank, and under this temperature and humidity, thick bamboo tube has reached its softening point temperature
Degree, hemicellulose hydrolyzed, and circle thick bamboo tube has carbonized, and stops logical steam at this time, and drain tap is crack, makes steam in tank slowly
Discharge, until steam is all discharged in pipe；
（4）The drying process of circle thick bamboo tube, after steam is all discharged in tank, the temperature being passed through from the air inlet of tank is 90 DEG C
Dry hot-air, and the gas outlet of tank lower part is opened, the high-temperature steam in thick bamboo tube will be with dry hot-air drain tank at this time
Outside, by the drying of 60 minutes, just carbonized and dried fissureless round thick bamboo tube.
After conventional post-production, you can the free from flaw circle thick bamboo tube carbonized, its physical and mechanical property are as follows：
Density：0.75~0.85g/cm3
Moisture content：6~15%
MOR∥： ≥ 110 MPa
MOE∥： ≥ 12000 MPa.
Claims (1)
1. the efficient charing of thick bamboo tube and free from flaw processing method, it is characterized in that comprising the technical steps that：
（1）New fresh bamboo tube drill hole reason；
（2）Thick bamboo tube is stacked and into pressure pan；
（3）Hot mastication and charing process in circle thick bamboo tube pressure pan；
（4）The drying process of circle thick bamboo tube;
The step（1）New fresh bamboo tube drill hole reason：, will be vertical every upper drilling in its ring by long drill bit after blocking on request
Drill to getting through, or at the position up and down of ring from bamboo green layer to bamboo spring layer, which may insure that the inner and outer boundary of thick bamboo tube communicates；
The step（2）Thick bamboo tube is stacked and into pressure pan：Thick bamboo tube is placed on trolley, thick bamboo tube is then promoted into pressure pan
In, shut tank door；
The step（3）Hot mastication and charing process in circle thick bamboo tube pressure pan：Be passed through into pressure pan temperature for 140~
190 DEG C of high-temperature steams, the cold air in tank and condensed water when being just passed through, first discharged, pressure pan temperature is rapidly risen to 140
~190 DEG C of temperature, is then kept for 10~60 minutes, is always saturated vapor within this time, in pressure pan, in this temperature
Under humidity, thick bamboo tube has reached softening point temperature, and hemicellulose has hydrolyzed, and circle thick bamboo tube has carbonized, and stops logical steam at this time, will arrange
Air valve is crack, the steam in pressure pan is slowly discharged, until steam is all discharged in pipe；
The step（4）The drying process of circle thick bamboo tube：After steam is all discharged in pressure pan, lead to from the air inlet of pressure pan
The temperature entered is 70~110 DEG C of dry hot-airs, and opens the gas outlet of pressure pan lower part, and the steam in thick bamboo tube will be with this time
Dry hot-air discharges outside the tank, and by the drying of 30~200 minutes, has just been carbonized and dry free from flaw justifies bamboo
Cylinder；
The drying process of circle thick bamboo tube：It can also be after being vented in circle bamboo tube pot, thick bamboo tube directly released, has been stacked in and has been covered and lead to
The place of wind makes its gas do moisture content 12%；The circle thick bamboo tube of taking-up can also further be done in dry kiln or tunnel oven again
It is dry to moisture content 12%.
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| CN201610103091.0A CN105643750B (en) | 2016-02-25 | 2016-02-25 | The efficient charing of thick bamboo tube and free from flaw processing method |
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| CN201610103091.0A CN105643750B (en) | 2016-02-25 | 2016-02-25 | The efficient charing of thick bamboo tube and free from flaw processing method |
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| CN105643750A CN105643750A (en) | 2016-06-08 |
| CN105643750B true CN105643750B (en) | 2018-04-27 |
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Application publication date: 20160608 Assignee: FUJIAN YOUZHU TECHNOLOGY Co.,Ltd. Assignor: Nanjing Forestry University Contract record no.: 2018320000411 Denomination of invention: Efficient carbonization and crack-free treatment method of bamboo pipes Granted publication date: 20180427 License type: Common License Record date: 20181219 |
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Application publication date: 20160608 Assignee: Yongan Yalin Bamboo Research Institute Co.,Ltd. Assignor: Nanjing Forestry University Contract record no.: 2018320000436 Denomination of invention: Efficient carbonization and crack-free treatment method of bamboo pipes Granted publication date: 20180427 License type: Common License Record date: 20181225 |
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Effective date of registration: 20200727 Address after: 563000 south of the intersection of Industrial Avenue and Wanyin Road, Chishui City, Zunyi City, Guizhou Province Patentee after: GUIZHOU XINJIN BAMBOO & WOOD PRODUCTS Co.,Ltd. Address before: Nanjing City, Jiangsu province 210037 Longpan Road No. 159 Patentee before: NANJING FORESTRY University |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20180427 |