CN106042126A - Rapid and direct board deep carbonization process - Google Patents
Rapid and direct board deep carbonization process Download PDFInfo
- Publication number
- CN106042126A CN106042126A CN201610580268.6A CN201610580268A CN106042126A CN 106042126 A CN106042126 A CN 106042126A CN 201610580268 A CN201610580268 A CN 201610580268A CN 106042126 A CN106042126 A CN 106042126A
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- China
- Prior art keywords
- plank
- heating platen
- temperature
- cellar
- moisture content
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Classifications
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- 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
- 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
- B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a rapid and direct board deep carbonization process. The rapid and direct board deep carbonization process includes the following steps of (1) material selection, (2) shaping, (3) wood shaving, (4) drying treatment, (5) insulation treatment, (6) carbonization treatment and (7) cooling treatment. All steps in the method are scientifically and reasonably matched, boards can be subject to carbonization operation directly, the energy loss is reduced, and meanwhile the overall carbonization treatment time length is shortened by about 30%; and the thickness of an effective carbonization layer of the board is increased by one to two times, the properties of crack resistance, bending resistance, impact toughness, the nail-holding ability and the like of the boards are better improved, and the using value is higher.
Description
Technical field
The invention belongs to Wood carbonization technical field, be specifically related to a kind of plank quickly direct degree of depth carbonization technique.
Background technology
The timber that carbide wood obtains after referring to, in hot environment, timber is carried out homogeneity carbonization treatment, after carbonization treatment
Timber in addition to surface aesthetic, also there is anticorrosion and antibiont invasion and attack, resistance to deformation cracking, resistant to elevated temperatures advantage, and due to it
There is moisture content low, the most hygroscopic, there is again stable material quality, fat is not overflow in defat indeformable, complete, heat-proof quality is good, without special
The features such as abnormal smells from the patient, are preferable furniture and indoor and outdoor decoration material.
Before prior art carries out carbonization to plank, need first to carry out dried, the water content of plank is down to necessarily
Below degree, prevent its moisture content higher, directly carry out carbonization treatment and can make timber that carbonization inequality occurs in carbonisation
The phenomenons such as even, twist deformation, explosion.The shortcoming of this mode is to need first timber to be thermally dried process, especially
Moist wood, recycles high temperature and it is carried out carbonization treatment after being then cooled to room temperature, during this, heat waste is relatively
Many, energy loss is bigger.Based on this, people attempt directly plank being carried out direct carbonization process, and no matter the water content of plank is many
Few, a kind of method of unseasoned lumber direct carbonization as disclosed in Application No. 201310440191.9, including: warm-up phase, it is dried
Stage, regulation stage, dry carbonization transition stage, carbonation stage, temperature-fall period, be divided into the most again eight sub-rank by drying stage
Section is dried, and finally completes carbonization treatment.But it has been found that step is the most complicated time actually used, simultaneously need to carry out accurate
Detection and control process, and add cost, and the time of process is the longest.Additionally, have when the method is for wet wood direct carbonization
Effect carburization zone is shallower, and the performance such as the bending strength of timber, toughness, nail-holding ability has declined, and have impact on timber
Serviceability.
Summary of the invention
In order to solve the problems referred to above, the invention provides a kind of plank quickly direct degree of depth carbonization technique.
The present invention is achieved through the following technical solutions:
A kind of plank quickly direct degree of depth carbonization technique, comprises the steps:
(1) selection: choose neutral density, thickness standby more than the plank of 1cm；
(2) shaping: with cutting machine, plank is cut into the cuboid-type of rule；
(3) scrape: process that the board surface after shaping is scraped；
(4) dried: the plank after step (3) being processed is emitted on heating platen, it is ensured that in the cellar for storing things at heating platen and its place
Temperature identical, as the moisture content MC > 55% of plank, control heating platen be 0.2 ~ 0.4Mpa to the compaction pressure of plank, control
In system cellar for storing things, temperature is 52 ~ 54 DEG C, applies the ultrasound wave that frequency is 32 ~ 34KHz simultaneously and carries out synchronization process, until plank is aqueous
Till rate is not more than 55%；When the moisture content 35% of plank, < during MC≤55%, controlling heating platen is 0.6 to the compaction pressure of plank
~ 0.8Mpa, controlling the interior temperature in cellar for storing things is 56 ~ 58 DEG C, applies the ultrasound wave that frequency is 34 ~ 36KHz simultaneously and carries out synchronization process, until
Till the moisture content of plank is not more than 35%；When the moisture content 20% of plank < during MC≤35%, controls the heating platen pressure to plank
Compaction forces is 1.0 ~ 1.2Mpa, and controlling the interior temperature in cellar for storing things is 60 ~ 63 DEG C, applies the ultrasound wave that frequency is 36 ~ 38KHz simultaneously and carries out same
Step processes, till the moisture content MC of plank is not more than 20%；
(5) isothermal holding: when the plank moisture content MC after step (4) processes is not more than 20%, the external force of removal heating platen, so
After will cellar for storing things in temperature be promoted to 75 ~ 78 DEG C, isothermal holding 2 ~ 3h；Isothermal holding can eliminate the stress in plank further, even
Change overall organizational structure, prepare for carbonization treatment；
(6) carbonization treatment: the plank after step (5) isothermal holding is discharged on hot plate, again with conduction oil by heating platen
Temperature rise to 200 ~ 230 DEG C, controlling heating platen to the compaction pressure of plank is 1.4 ~ 1.6Mpa, after 10 ~ 15min, unloads heat extraction
The external force of pressing plate, after allowing plank naturally stand 2 ~ 3min, rises to 270 ~ 300 DEG C by the temperature of heating platen, controls heating platen to wood
The compaction pressure of plate is 1.8 ~ 2.0Mpa, is taken out by plank after 15 ~ 20min；
(7) cooling processes: the plank after processing step (6) is lowered the temperature, and the speed of cooling is 50 ~ 60 DEG C/h, treats timber temperature
Degree is cooled to room temperature.
Further, described in step (4) during dried, also need that the vacuum in cellar for storing things is remained 0.065 ~
0.070MPa。
Further, the conduction oil described in step (6) is the conduction oil of 400#.
There is advantages that
(1) present invention is in the dried to plank, is reduced to three phases, utilizes the cooperation of low pressure and temperature, will
Uniform moisture in timber is discharged, and simultaneously takes account of and easily remains bubble inside when plank is dried, produces the problems such as stress, by super
Under the common effect of sound wave and heating platen pressure, plank entirety more consolidation, moisture are discharged the most abundant, and preferably eliminating should
Power, prevents deformation, the phenomenon of cracking.
(2) when carbonization treatment, by the reasonable pressure to plank, can improve the degree of depth of carbonization treatment, period is at secondary
Before pressure, plank is stood naturally the abatement of the operation of 2 ~ 3min, beneficially carburization zone and internal stress, can opening later stage plank
Rate of splitting reduces by 15 ~ 20%, and twice scale pressure carbonization operation makes plank obtain deeper carbonization effect, enhances making of plank
By value.
(3) collocation of the inventive method each step is scientific and reasonable, directly plank can be carried out carbonization operation, reduces energy and damages
Consumption, shortens about 30% by the handling duration of overall carbonization the most again, and effective carburization zone thickness of plank adds 1 ~ 2 times, wood
The performances such as the crack resistance of plate, bending strength, toughness, nail-holding ability all have well improvement, and use value is higher.
Detailed description of the invention
Embodiment 1
A kind of plank quickly direct degree of depth carbonization technique, comprises the steps:
(1) selection: choose neutral density, thickness standby more than the plank of 1cm；
(2) shaping: with cutting machine, plank is cut into the cuboid-type of rule；
(3) scrape: process that the board surface after shaping is scraped；
(4) dried: the plank after step (3) being processed is emitted on heating platen, it is ensured that in the cellar for storing things at heating platen and its place
Temperature identical, as the moisture content MC > 55% of plank, control heating platen be 0.25Mpa to the compaction pressure of plank, control cellar for storing things
Interior temperature is 53 DEG C, applies the ultrasound wave that frequency is 33KHz simultaneously and carries out synchronization process, until the moisture content of plank is not more than
Till 55%；When the moisture content 35% of plank, < during MC≤55%, controlling heating platen is 0.68Mpa to the compaction pressure of plank, control
In system cellar for storing things, temperature is 56 DEG C, applies the ultrasound wave that frequency is 35KHz simultaneously and carries out synchronization process, until the moisture content of plank is little
Till 35%；When the moisture content 20% of plank, < during MC≤35%, controlling heating platen is 1Mpa to the compaction pressure of plank, controls
In cellar for storing things, temperature is 61 DEG C, applies the ultrasound wave that frequency is 38KHz simultaneously and carries out synchronization process, until the moisture content MC of plank is little
Till 20%；
(5) isothermal holding: when the plank moisture content MC after step (4) processes is not more than 20%, the external force of removal heating platen, so
After will cellar for storing things in temperature be promoted to 78 DEG C, isothermal holding 2.5h；
(6) carbonization treatment: the plank after step (5) isothermal holding is discharged on hot plate, again with conduction oil by heating platen
Temperature rise to 220 ~ 230 DEG C, controlling heating platen to the compaction pressure of plank is 1.4Mpa, after 13min, outside removal heating platen
Power, after allowing plank naturally stand 2min, rises to 290 ~ 300 DEG C by the temperature of heating platen, controls the heating platen compression pressure to plank
Power is 2Mpa, is taken out by plank after 18min；
(7) cooling processes: the plank after processing step (6) is lowered the temperature, and the speed of cooling is 55 DEG C/h, treats that Wood temperature is cold
But to room temperature.
Further, described in step (4) during dried, also need the vacuum in cellar for storing things is remained 0.068MPa.
Further, the conduction oil described in step (6) is the conduction oil of 400#.
Comparative example 1
This comparative example 1 compared with Example 1, when step (4) dried, does not apply ultrasonic Treatment operation, except this
Outer method step is the most identical.
Comparative example 2
This comparative example 2 compared with Example 1, when step (6) carbonization treatment, after for the first time pressure, saves and allows plank
Naturally standing the operation of 2 ~ 3min, directly carry out supercharging intensification carbonization treatment, method step in addition is the most identical.
Matched group
Technical method disclosed in Application No. 201310440191.9.
In order to contrast effect of the present invention, select with a collection of plank, use above-mentioned four kinds of modes to process respectively, then will
Its put into maximum temperature difference be 40 DEG C, relative humidity be 80 ~ 85% simulation experiment case in, after adding up three months, each group plank opens
Split rate, shown in table specific as follows:
| Embodiment 1 | Comparative example 1 | Comparative example 2 | Matched group | |
| Cracking rate (%) | 6.4 | 9.6 | 7.7 | 13.2 |
As seen from the above table, the plank crack resistence performance after the present invention processes is more preferable.
Plank after embodiment 1 and matched group alignment processing carries out performance detection find, effective carburization zone of embodiment 1
Thickness is 2.4 times of matched group, and bending strength is its 1.6 times, and nail-holding ability is its 1.3 times, has more preferable use value.
Claims (3)
1. a plank quickly direct degree of depth carbonization technique, it is characterised in that comprise the steps:
(1) selection: choose neutral density, thickness standby more than the plank of 1cm；
(2) shaping: with cutting machine, plank is cut into the cuboid-type of rule；
(3) scrape: process that the board surface after shaping is scraped；
(4) dried: the plank after step (3) being processed is emitted on heating platen, it is ensured that in the cellar for storing things at heating platen and its place
Temperature identical, as the moisture content MC > 55% of plank, control heating platen be 0.2 ~ 0.4Mpa to the compaction pressure of plank, control
In system cellar for storing things, temperature is 52 ~ 54 DEG C, applies the ultrasound wave that frequency is 32 ~ 34KHz simultaneously and carries out synchronization process, until plank is aqueous
Till rate is not more than 55%；When the moisture content 35% of plank, < during MC≤55%, controlling heating platen is 0.6 to the compaction pressure of plank
~ 0.8Mpa, controlling the interior temperature in cellar for storing things is 56 ~ 58 DEG C, applies the ultrasound wave that frequency is 34 ~ 36KHz simultaneously and carries out synchronization process, until
Till the moisture content of plank is not more than 35%；When the moisture content 20% of plank < during MC≤35%, controls the heating platen pressure to plank
Compaction forces is 1.0 ~ 1.2Mpa, and controlling the interior temperature in cellar for storing things is 60 ~ 63 DEG C, applies the ultrasound wave that frequency is 36 ~ 38KHz simultaneously and carries out same
Step processes, till the moisture content MC of plank is not more than 20%；
(5) isothermal holding: when the plank moisture content MC after step (4) processes is not more than 20%, the external force of removal heating platen, so
After will cellar for storing things in temperature be promoted to 75 ~ 78 DEG C, isothermal holding 2 ~ 3h；
(6) carbonization treatment: the plank after step (5) isothermal holding is discharged on hot plate, again with conduction oil by heating platen
Temperature rise to 200 ~ 230 DEG C, controlling heating platen to the compaction pressure of plank is 1.4 ~ 1.6Mpa, after 10 ~ 15min, unloads heat extraction
The external force of pressing plate, after allowing plank naturally stand 2 ~ 3min, rises to 270 ~ 300 DEG C by the temperature of heating platen, controls heating platen to wood
The compaction pressure of plate is 1.8 ~ 2.0Mpa, is taken out by plank after 15 ~ 20min；
(7) cooling processes: the plank after processing step (6) is lowered the temperature, and the speed of cooling is 50 ~ 60 DEG C/h, treats timber temperature
Degree is cooled to room temperature.
A kind of plank the most according to claim 1 quickly direct degree of depth carbonization technique, it is characterised in that institute in step (4)
When stating dried, also need the vacuum in cellar for storing things is remained 0.065 ~ 0.070MPa.
A kind of plank the most according to claim 1 quickly direct degree of depth carbonization technique, it is characterised in that institute in step (6)
The conduction oil stated is the conduction oil of 400#.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610580268.6A CN106042126A (en) | 2016-07-22 | 2016-07-22 | Rapid and direct board deep carbonization process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610580268.6A CN106042126A (en) | 2016-07-22 | 2016-07-22 | Rapid and direct board deep carbonization process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106042126A true CN106042126A (en) | 2016-10-26 |
Family
ID=57418242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610580268.6A Pending CN106042126A (en) | 2016-07-22 | 2016-07-22 | Rapid and direct board deep carbonization process |
Country Status (1)
| Country | Link |
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| CN (1) | CN106042126A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108407018A (en) * | 2018-03-21 | 2018-08-17 | 中铁四局集团建筑工程有限公司 | A method of preservative treatment is carried out to timber |
| CN112611806A (en) * | 2020-12-21 | 2021-04-06 | 安徽龙鼎家居工贸有限公司 | Device and method for detecting water content of raw material plate |
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| CN105313203A (en) * | 2015-10-27 | 2016-02-10 | 中山市大涌镇生产力促进中心 | Quick drying method for rosewood |
| CN105729606A (en) * | 2014-12-12 | 2016-07-06 | 上海骏雄木业有限公司 | Heat treatment method for decoration panel |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101570031A (en) * | 2009-05-29 | 2009-11-04 | 周发荣 | Wood floor carbonizing processing method |
| CN101586905A (en) * | 2009-07-03 | 2009-11-25 | 东南大学 | Ultrasonic hot air combined dryer and drying method thereof |
| CN102626941A (en) * | 2011-02-07 | 2012-08-08 | 刘锡丽 | Fast-growing wood surface reinforcing manufacturing method and sections manufactured thereby |
| CN202922708U (en) * | 2012-10-31 | 2013-05-08 | 杜慕楠 | High-temperature pot-type wood carbonization device |
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| CN103406949A (en) * | 2013-08-14 | 2013-11-27 | 广西南宁绿园北林木业有限公司 | Production method for all eucalyptus lamination board for wood floor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108407018A (en) * | 2018-03-21 | 2018-08-17 | 中铁四局集团建筑工程有限公司 | A method of preservative treatment is carried out to timber |
| CN112611806A (en) * | 2020-12-21 | 2021-04-06 | 安徽龙鼎家居工贸有限公司 | Device and method for detecting water content of raw material plate |
| CN112611806B (en) * | 2020-12-21 | 2022-06-03 | 安徽龙鼎家居工贸有限公司 | Device and method for detecting water content of raw material plate |
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Application publication date: 20161026 |
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