CN106369936A - Drying method for ebony for floors - Google Patents
Drying method for ebony for floors Download PDFInfo
- Publication number
- CN106369936A CN106369936A CN201610929041.8A CN201610929041A CN106369936A CN 106369936 A CN106369936 A CN 106369936A CN 201610929041 A CN201610929041 A CN 201610929041A CN 106369936 A CN106369936 A CN 106369936A
- Authority
- CN
- China
- Prior art keywords
- kiln
- moisture content
- temperature
- ebony
- equilibrium moisture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B1/00—Preliminary treatment of solid materials or objects to facilitate drying, e.g. mixing or backmixing the materials to be dried with predominantly dry solids
- F26B1/005—Preliminary treatment of solid materials or objects to facilitate drying, e.g. mixing or backmixing the materials to be dried with predominantly dry solids by means of disintegrating, e.g. crushing, shredding, milling the materials to be dried
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2210/00—Drying processes and machines for solid objects characterised by the specific requirements of the drying good
- F26B2210/16—Wood, e.g. lumber, timber
Abstract
The invention discloses a drying method for ebony for floors and belongs to the technical field of wood drying. The drying method comprises the following steps that firstly, ebony plates are selected and picked, and chordal plates are selected out; secondly, primary machining is conducted on the ebony plates, and the chordal plates of the ebony plates are saw-cut into the plates with the 400-mm thickness of the length specification mentioned below; thirdly, disc arrangement and stacking are conducted on the ebony plates; fourthly, the ebony plates are put into a kiln; fifthly, treatment in the initial stage in the kiln is conducted; sixthly, dehydration and drying are conducted; seventhly, treatment in the middle stage in the kiln is conducted; and eighthly, balance treatment in the late stage in the kiln is conducted; and in the late stage of drying, the wood is dried to the required moisture content through a drying process shown in the ebony drying reference in the table 1. By the adoption of the drying method for the ebony for the floors, the problems of serious deformation and serious cracking generated when the ebony is dried can be solved effectively, and the use value of the ebony is increased.
Description
Technical field
The present invention relates to method for drying wood, particularly to a kind of drying meanss of the wood of the coal for producing floor, belong to
In Wood Drying Technology field.
Background technology
Coal wood wood color is natural, the eye-catching and great sense of movement of color, and any one tangent plane can clearly show wood
The aesthetic feeling of stricture of vagina.Its growing environment is also very special, is grown on the massif area of more than 1600 meters of mean sea level, and upper soll layer contains
Abundant mineral resources, the rhizome of trees penetrates layer mineral deeply, absorbs nutrition and moisture, so containing metal-like in its timber.Crow
The wooden structures of Jin Mu are very outstanding, are described as " the 9th kind of redwood ".Weigh weight with handss in the hand, it finds that it is compared by coal wood
He will sink much at timber.The hardness of timber, density are high, and its wooden structures is similar with the Door frame in redwood, and pore is fine and closely woven, the depth
Wood grain is alternate and texture that form dye-in-the-wood individual character.But it also has fatal defect, the change of moisture content makes it be easily deformed and opens
Split, during drying and processing, it usually can voluntarily burst, this greatly reduces the use value of coal wood.At present still
Do not have a kind of can solve coal wood dry run easy to crack, deformation drying process.The invention provides a kind of coal wood
Drying process, can be very good to solve the problems, such as coal wood dry run cracking, deformation.
Content of the invention
The defect existing for prior art, it is an object of the invention to provide a kind of floor drying side of coal wood
Method, deformation, serious cracking when solving the problems, such as that coal wood is dried.
The drying meanss of floor disclosed by the invention coal wood comprise the following steps:
Step one, coal wood plank sorts, and chooses tangential plate；
Step 2, coal wood plank preliminary working, tangential for coal wood bladed saw solution is 400mm and following length specification；
Step 3, coal wood plank code-disc stacking, by ad eundem, the independent code of tangential plate with dimensions and with batch
Disk, stays 2～3cm gap between tangential flaggy, by interlayer plate closely coupled tight during non-tangential plate code-disc, with layer parting bead thickness
Unanimously, on same vertical line, two ends parting bead is concordant with raw material termination for upper-lower position, adopts 2 parting beads between sheet material；
Step 4, coal wood plank enters kiln, and loading of kiln width is less than ventilating air passage, and pallet is put and do not formed channeling, tangential
Board placing, in dry kiln middle part, is around surrounded with other material heaps it is ensured that tangential plate dry environment is stable, after loading of kiln, sheet material
Between length direction and kiln wall, gap is less than 20cm, and highly close to deep bead, spacing is less than 15cm for loading of kiln；
Step 5, in kiln, the initial stage is processed, and is heated up in kiln with the programming rate of 2 DEG C/h, when the temperature in kiln is raised to
When 30 DEG C, open humidification system, make the equilibrium moisture content in kiln progressively reach 25, temperature reaches 40 DEG C, keep 30～48 hours,
After retention time terminates, kiln temperature is set to 35 DEG C, the equilibrium moisture content in kiln is set to 18；
Step 6, dehydrate is processed, when the moisture content of Europe rubber sheet material drops between 30～40, with the intensification of 1 DEG C/h
Kiln temperature is raised to 40 DEG C by speed, and kiln inner equilibrium moisture content is set to 16, and Europe rubber sheet material moisture content is down to 30；
Step 7, in kiln, mid-term is processed, and carries out wettability treatment to plate surface, with the programming rate of 1 DEG C/h by kiln interior temperature
Degree is raised to 45 DEG C, opens automatic humidification system and humidifies in kiln, gradually makes the equilibrium moisture content in kiln reach 19, keeps 8
Hour, after the retention time terminates, kiln inner equilibrium moisture content is gradually adjusted to 12 by 15, and the sheet material moisture content in kiln is dried by 30
To 20, subsequently with the programming rate of 1 DEG C/h, kiln temperature is raised to 50 DEG C, opens automatic humidification system and humidify in kiln,
Gradually make the equilibrium moisture content in kiln reach 16, keep 8 hours, subsequently kiln temperature is set as 50 DEG C, treats that kiln inner equilibrium contains
Water rate is gradually dropped to 10, until sheet material moisture content drops to 15, subsequently with the programming rate of 1 DEG C/h, kiln temperature is raised to 55 DEG C,
Open automatic humidification system to humidify in kiln, gradually make the equilibrium moisture content in kiln drop to 14, keep 8 hours, subsequently with 1
DEG C/programming rate of h is raised to 75 DEG C kiln temperature, kiln inner equilibrium moisture content drops to 6.5, until the moisture content of sheet material drops to
Between 6～7；
Step 8, latter stage Balance Treatment in kiln, with the programming rate of 1 DEG C/h, kiln temperature is raised to 78 DEG C, opens automatically
Humidification system humidifies in kiln, gradually makes the equilibrium moisture content in kiln drop to 8, keeps 12 hours, after process terminates, by kiln
Interior temperature is reduced to 75 DEG C, and equilibrium moisture content is down to 6.5, gradually cools to 40 DEG C of kiln discharges after keeping 4 hours.
Specifically, in insufficient raw material one kiln, loading of kiln width can be reduced it is ensured that its stability.
In initial stage processing procedure in kiln, the equilibrium moisture content in kiln reaches 25, and temperature reaches and keeps 30～48 when 40 DEG C
Hour it is therefore an objective to allow whole kiln sheet material moistening from outside to inside thoroughly, also make the plate initial stage in kiln that when starting moisture content is dried and compare
Close, to ensure that the sheet material moisture content that the later stage dries out compares uniformity it is ensured that the steady quality of subsequent production product.
The beneficial effects of the present invention is: provide a kind of drying meanss of floor coal wood, can be very good to solve
Deformation, the problem of serious cracking when Europe rubber is dried, improve the use value of coal wood.
Specific embodiment
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the present invention now will be to implement
Example mode is described more fully hereinafter.However, the present invention can be embodied with a lot of multi-forms and be not construed as
It is limited to specific embodiment set forth herein.On the contrary, these embodiments are supplied to skilled artisan understands that the present invention
Technical scheme.
Step one, coal wood plank sorts, and chooses tangential plate；
Step 2, coal wood plank preliminary working, tangential for coal wood bladed saw solution is 400mm and following length specification；
Step 3, coal wood plank code-disc stacking, by ad eundem, the independent code of tangential plate with dimensions and with batch
Disk, stays 2～3cm gap between tangential flaggy, by interlayer plate closely coupled tight during non-tangential plate code-disc, with layer parting bead thickness
Unanimously, on same vertical line, two ends parting bead is concordant with raw material termination for upper-lower position, adopts 2 parting beads between sheet material；
Step 4, coal wood plank enters kiln, and loading of kiln width is less than ventilating air passage, and pallet is put and do not formed channeling, tangential
Board placing, in dry kiln middle part, is around surrounded with other material heaps it is ensured that tangential plate dry environment is stable, after loading of kiln, sheet material
Between length direction and kiln wall, gap is less than 20cm, and highly close to deep bead, spacing is less than 15cm for loading of kiln；
Step 5, in kiln, the initial stage is processed, and is heated up in kiln with the programming rate of 2 DEG C/h, when the temperature in kiln is raised to
When 30 DEG C, open humidification system, automatically humidified in kiln according to the equilibrium moisture content setting, make the equilibrium moisture content in kiln
Progressively reach 25, temperature reaches 40 DEG C, and be maintained at 30～48 hours under this epidemic disaster, the retention time regards sheet material in kiln
Thickness determine it is therefore an objective to allow whole kiln sheet material moistening from outside to inside thoroughly, also make the plate initial stage in kiln that when starting moisture content is dried
Relatively, compare uniformity it is ensured that the quality of subsequent production product is steady to ensure the sheet material moisture content that the later stage dries out
Fixed, after the retention time terminates, kiln temperature is set to 35 DEG C, the equilibrium moisture content humidity set in kiln to 18；
Step 6, dehydrate is processed, when the moisture content of Europe rubber sheet material drops between 30～40, with the intensification of 1 DEG C/h
Speed is raised to 40 DEG C kiln temperature, kiln inner equilibrium moisture content humidity set to 16, and being dried to sheet material moisture content is 30；
Step 7, in kiln mid-term process, when the sheet material moisture content in kiln drops to 30, in order to ensure sheet material inside and
External aqueous rate gradient is smaller, when sheet material subsequently continues to be dried surface will not overdrying, produce seasoning defect drying defect, this period need
Wettability treatment carried out to plate surface, with the programming rate of 1 DEG C/h, temperature to be raised to 45 DEG C, open automatic humidification system to kiln
Inside humidified, gradually make the equilibrium moisture content in kiln reach 19, after epidemic disaster keeps 8 hours after reaching, proceeded to the next stage
Dried, kiln temperature is set in 45 DEG C, and equilibrium moisture content is gradually adjusted to 12 by 15, the sheet material moisture content in kiln by 30
It is dried to 20, then with the programming rate of 1 DEG C/h, temperature is raised to 50 DEG C, open automatic humidification system and humidify in kiln,
Gradually make the equilibrium moisture content in kiln reach 16, after epidemic disaster keeps 8 hours after reaching, proceed to the dry of next moisture content stage
Dry process, kiln temperature is set as 50 DEG C, and kiln inner equilibrium moisture content is gradually dropped to 10, is dried, until containing of Europe rubber sheet material
Water rate drops to 15, then with the programming rate of 1 DEG C/h, temperature is raised to 55 DEG C, open automatic humidification system to carrying out in kiln plus
Wet, gradually make the equilibrium moisture content in kiln reach 14, epidemic disaster keeps 8 hours after reaching, proceed to the dry of next moisture content stage
Dry process, kiln temperature is gradually raised to 75 DEG C by 55 DEG C, and programming rate controls in 1 DEG C/h, and kiln inner equilibrium moisture content is gradually dropped to
6.5, it is dried, until the moisture content of Europe rubber sheet material drops between 6～7, then carry out final kiln discharge Balance Treatment, with
Eliminate the residual stress within sheet material, be conducive to follow-up production and processing and stabilized product quality；
Step 8, latter stage Balance Treatment in kiln, with the programming rate of 1 DEG C/h, kiln temperature is raised to 78 DEG C, opens automatically
Humidification system humidifies in kiln, gradually makes the equilibrium moisture content in kiln drop to 8, keeps 12 hours, after process terminates, by kiln
Interior temperature is reduced to 75 DEG C, and equilibrium moisture content is down to 6.5, gradually cools to 40 DEG C of kiln discharges after keeping 4 hours.
Middle and late stage is dried can be extremely required aqueous by the drying of wood using drying process shown in coal wood drying schedule in table 1
Rate.
Table 1. floor coal wood drying schedule
| Moisture content % | Temperature (DEG C) | Equilibrium moisture content (%) | Time (h) |
| Enter kiln early stage to process | 30～40 | 22～25 | 30～48 |
| >40 | 35 | 19 | |
| 40～30 | 40 | 16 | |
| Mid-term processes 30 | 45 | 19～20 | 8 |
| 30～20 | 45 | 12～15 | |
| Mid-term processes 20 | 50 | 16 | 8 |
| 20～15 | 50 | 10 | |
| Mid-term processes 15 | 55 | 14 | 8 |
| <15 | 55～75 | 9～6.5 | |
| End of a period process 8.0 | 78 | 8.0 | 12 |
Test shows, the floor disclosed in this invention sorting mode of coal wood plank, the restriction of dimensions, later stage
Enter the dry step of kiln drying set and processing parameter setting can protect to the full extent coal wood in dry run cracking and
The situation of deformation, achieves satisfied effect, after product drying, qualification rate reaches 99%.
Unless otherwise defined, term (comprising scientific and technical terminology) used herein above should be construed to have as belonging to the present invention
The same meaning that those skilled in the art are commonly understood by.It will also be understood that term used herein above should be explained
For having the consistent meaning of the meaning in the content of this specification and correlation technique with them, and should be not idealize
Or excessive form explanation, unless expressly so limited here.
Although here of the present invention is described with reference to the specific aspect of the present invention, feature and exemplary embodiment, should
When being understood by, the purposes of the present invention does not therefore suffer from limiting, but extend and cover numerous other changes, modification with
And alternate embodiment, as implied giving those skilled in the art in the invention based on disclosure herein.Correspondingly, all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvement done etc., should be included in the guarantor of the present invention
Within the scope of shield.
Claims (1)
1. a kind of drying meanss of floor coal wood are it is characterised in that comprise the following steps:
Step one, coal wood plank sorts, and chooses tangential plate；
Step 2, coal wood plank preliminary working, tangential for coal wood bladed saw solution is 400mm and following length specification；
Step 3, coal wood plank code-disc stacking, by ad eundem, the independent code-disc of tangential plate with dimensions and with batch, string
To staying 2 ~ 3cm gap between flaggy, by interlayer plate closely coupled tight during non-tangential plate code-disc, with layer parting bead consistency of thickness,
, on same vertical line, two ends parting bead is concordant with raw material termination for upper-lower position, adopts 2 parting beads between sheet material；
Step 4, coal wood plank enters kiln, and loading of kiln width is less than ventilating air passage, and pallet is put and do not formed channeling, tangential plate pendulum
It is placed on dry kiln middle part, around surrounded with other material heaps it is ensured that tangential plate dry environment is stable, after loading of kiln, panel length
Between direction and kiln wall, gap is less than 20cm, and highly close to deep bead, spacing is less than 15cm for loading of kiln；
Step 5, in kiln, the initial stage is processed, and is heated up in kiln with the programming rate of 2 DEG C/h, when the temperature in kiln is raised to 30 DEG C
When, open humidification system, make the equilibrium moisture content in kiln progressively reach 25, temperature reaches 40 DEG C, keep 30 ~ 48 hours, keep
After time terminates, kiln temperature is set to 35 DEG C, the equilibrium moisture content in kiln is set to 18；
Step 6, dehydrate is processed, when the moisture content of Europe rubber sheet material drops between 30 ~ 40, will with the programming rate of 1 DEG C/h
Kiln temperature is raised to 40 DEG C, and kiln inner equilibrium moisture content is set to 16, and Europe rubber sheet material moisture content is down to 30；
Step 7, in kiln, mid-term is processed, and carries out wettability treatment to plate surface, with the programming rate of 1 DEG C/h by kiln temperature liter
To 45 DEG C, open automatic humidification system and humidify in kiln, gradually make the equilibrium moisture content in kiln reach 19, keep 8 hours,
After retention time terminates, kiln inner equilibrium moisture content is gradually adjusted to 12 by 15, and the sheet material moisture content in kiln is dried to 20 by 30,
Subsequently with the programming rate of 1 DEG C/h, kiln temperature is raised to 50 DEG C, opens automatic humidification system and humidify in kiln, gradually make
Equilibrium moisture content in kiln reaches 16, keeps 8 hours, subsequently kiln temperature is set as 50 DEG C, treat kiln inner equilibrium moisture content by
Gradually drop to 10, until sheet material moisture content drops to 15, subsequently with the programming rate of 1 DEG C/h, kiln temperature is raised to 55 DEG C, open certainly
Dynamic humidification system humidifies in kiln, gradually makes the equilibrium moisture content in kiln drop to 14, keeps 8 hours, subsequently with 1 DEG C/h's
Programming rate is raised to 75 DEG C kiln temperature, and kiln inner equilibrium moisture content drops to 6.5, until the moisture content of sheet material drop to 6 ~ 7 it
Between；
Step 8, latter stage Balance Treatment in kiln, with the programming rate of 1 DEG C/h, kiln temperature is raised to 78 DEG C, opens automatic humidification
System humidifies in kiln, gradually makes the equilibrium moisture content in kiln drop to 8, keeps 12 hours, after process terminates, by kiln interior temperature
Degree is reduced to 75 DEG C, and equilibrium moisture content is down to 6.5, gradually cools to 40 DEG C of kiln discharges after keeping 4 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610929041.8A CN106369936A (en) | 2016-10-31 | 2016-10-31 | Drying method for ebony for floors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610929041.8A CN106369936A (en) | 2016-10-31 | 2016-10-31 | Drying method for ebony for floors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106369936A true CN106369936A (en) | 2017-02-01 |
Family
ID=57895929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610929041.8A Pending CN106369936A (en) | 2016-10-31 | 2016-10-31 | Drying method for ebony for floors |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556357A (en) * | 2018-11-09 | 2019-04-02 | 大亚(江苏)地板有限公司 | A kind of floor drying means of red gum |
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|---|---|---|---|---|
| WO1995031680A1 (en) * | 1994-05-11 | 1995-11-23 | Valtion Teknillinen Tutkimuskeskus | Method for processing wood at elevated temperatures |
| CN101231132A (en) * | 2008-01-30 | 2008-07-30 | 金国庆 | Wood drying technique |
| DE102009047137A1 (en) * | 2009-11-25 | 2011-05-26 | Institut Für Holztechnologie Dresden Gemeinnützige Gmbh | Method for thermal modification or remuneration of wood and wood products in thermal chambers, involves placing wood or wood product between gas tight, temperature and corrosion-resistant and goods heat conducting cover plate |
| CN104511953A (en) * | 2013-12-25 | 2015-04-15 | 柳州林道轻型木结构制造有限公司 | Pine drying method |
-
2016
- 2016-10-31 CN CN201610929041.8A patent/CN106369936A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995031680A1 (en) * | 1994-05-11 | 1995-11-23 | Valtion Teknillinen Tutkimuskeskus | Method for processing wood at elevated temperatures |
| CN101231132A (en) * | 2008-01-30 | 2008-07-30 | 金国庆 | Wood drying technique |
| DE102009047137A1 (en) * | 2009-11-25 | 2011-05-26 | Institut Für Holztechnologie Dresden Gemeinnützige Gmbh | Method for thermal modification or remuneration of wood and wood products in thermal chambers, involves placing wood or wood product between gas tight, temperature and corrosion-resistant and goods heat conducting cover plate |
| CN104511953A (en) * | 2013-12-25 | 2015-04-15 | 柳州林道轻型木结构制造有限公司 | Pine drying method |
Non-Patent Citations (4)
| Title |
|---|
| 吴智慧主编: "《木质家具制作工艺学》", 31 August 2004, 中国林业出版社 * |
| 杜桓清主编: "《木制品质量安全与使用检验技术》", 30 November 2012, 中国海洋大学出版社有限公司 * |
| 段新芳主编: "《俄罗斯木材贸易及其加工利用技术》", 29 February 2008, 中国建材工业出版社 * |
| 王传贵、蔡家斌主编: "《木质地板生产工艺学》", 31 October 2014, 中国林业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556357A (en) * | 2018-11-09 | 2019-04-02 | 大亚(江苏)地板有限公司 | A kind of floor drying means of red gum |
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Application publication date: 20170201 |