CN108453856A - A kind of drying means of control wood shrinkage - Google Patents

A kind of drying means of control wood shrinkage Download PDF

Info

Publication number
CN108453856A
CN108453856A CN201810045670.3A CN201810045670A CN108453856A CN 108453856 A CN108453856 A CN 108453856A CN 201810045670 A CN201810045670 A CN 201810045670A CN 108453856 A CN108453856 A CN 108453856A
Authority
CN
China
Prior art keywords
timber
drying
degrees celsius
freeze
drying means
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.)
Pending
Application number
CN201810045670.3A
Other languages
Chinese (zh)
Inventor
李玉杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201810045670.3A priority Critical patent/CN108453856A/en
Publication of CN108453856A publication Critical patent/CN108453856A/en
Pending legal-status Critical Current

Links

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
    • B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
    • B27K5/0085—Thermal treatments, i.e. involving chemical modification of wood at temperatures well over 100°C
    • 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
    • B27K5/0005—Cryogenic treatment
    • 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
    • B27K5/001—Heating
    • 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
    • B27K2240/00—Purpose of the treatment
    • B27K2240/20—Removing fungi, molds or insects

Abstract

Disclosed by the invention to belong to wood processing technique field, specially a kind of drying means of control wood shrinkage, the drying means of the control wood shrinkage includes the following steps：S1：Raw material is cut；S2：Steam treatment：Timber after cutting is put into sealed pressure tank, steam treatment is carried out to timber, the time of steam treatment is 30 40 minutes；S3：Hot-water soak：Timber after steam treatment is put into water-bath and carries out heating water bath, the temperature of heating water bath is 70 95 degrees Celsius, and soaking time is 6 10 hours；S4：Pre-freeze is handled；S5：The pre-heat treatment；S6：Heating；S7：Detection, the pit structure of timber can be destroyed to a certain extent, change the microtexture of timber, avoid the capillary tension that dry initial stage is larger caused by Free water migrates, so as to prevent the generation of shrinkage phenomenon, and rate of drying is fast, high-quality, the invention can also improve the structural stability of timber, prevent the erosion of worm.

Description

A kind of drying means of control wood shrinkage
Technical field
The present invention relates to wood processing technique field, specially a kind of drying means of control wood shrinkage.
Background technology
The drying of wood is one of link important in woodwork process, improves rate of drying, shortens arid cycle and is Reduce drying cost, energy saving important channel.It is dry in order to avoid being generated in drying process in traditional timber drying Processing generally is dried using lower temperature when the moisture content of timber is higher in dry defect, with the reduction of moisture content, Drying temperature gradually rises so that the temperature in entire drying process is relatively low.Existing method for drying wood drying efficiency is low, meeting The shrinkage for causing timber is deformed even warpage, cracking, and be easy to cause timber and damaged by worms and damaged, for this purpose, we carry Go out a kind of drying means of control wood shrinkage.
Invention content
The purpose of the present invention is to provide a kind of drying means of control wood shrinkage, to solve to carry in above-mentioned background technology The existing method for drying wood drying efficiency gone out is low, can cause the shrinkage of timber, is deformed even warpage, cracking, and hold Easily cause the problem of timber is damaged by worms and damaged.
To achieve the above object, the present invention provides the following technical solutions：A kind of drying means of control wood shrinkage, the control The drying means of wood shrinkage processed includes the following steps：
S1：Raw material is cut；
S2：Steam treatment：Timber after cutting is put into sealed pressure tank, steam treatment is carried out to timber, at steam The time of reason is 30-40 minutes；
S3：Hot-water soak：Timber after steam treatment is put into water-bath and carries out heating water bath, the temperature of heating water bath It it is 70-95 degrees Celsius, soaking time is 6-10 hours；
S4：Pre-freeze is handled：Timber after immersion is put into pre-freeze device and carries out pre-freeze processing, the pre-freeze time is that 18-28 is small When, pre-freezing temperature is -18 to -30 degrees Celsius；
S5：The pre-heat treatment：Timber after pre-freeze is put into dry kiln, is gradually heated up, when temperature rises to 65-75 degrees Celsius When, keep the temperature 2-4 hours；
S6：Heating：It after preheating, heats up again so that temperature reaches 80-120 degrees Celsius, keeps the temperature 4-10 hours；
S7：Detection：Timber after drying is subjected to conventional drying, cooling, and carries out Humidity Detection.
Preferably, the steam pressure in the step S2 is 0.2-0.4Mpa, and the vapor (steam) temperature is that 120-130 is Celsius Degree.
Preferably, it in the step step S4, needs that processing is dried to timber before carrying out pre-freeze processing, it is described dry The method of dry processing is vacuum drying.
Preferably, the heating rate in the step S5 is 15-20 degrees Celsius/hour.
Preferably, the heating rate in the step S6 is 20-25 degrees Celsius/hour.
Preferably, the cool-down method in the step S7 is natural cooling.
Compared with prior art, the beneficial effects of the invention are as follows：A kind of drying for control wood shrinkage that the invention proposes Method can destroy the pit structure of timber, change the microtexture of timber to a certain extent, avoid dry initial stage because of freedom Water capillary tension larger caused by migrating, so as to prevent the generation of shrinkage phenomenon, and rate of drying is fast, high-quality, should Invention can also improve the structural stability of timber, prevent the erosion of worm.
Description of the drawings
Fig. 1 is drying means flow chart of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the present invention provides a kind of drying means of control wood shrinkage：
The drying means of the control wood shrinkage includes the following steps：
Embodiment 1
S1：Raw material is cut；
S2：Steam treatment：Timber after cutting is put into sealed pressure tank, steam treatment is carried out to timber, at steam The time of reason is 40 minutes, steam pressure 0.4Mpa, and the vapor (steam) temperature is 130 degrees Celsius；
S3：Hot-water soak：Timber after steam treatment is put into water-bath and carries out heating water bath, the temperature of heating water bath It it is 95 degrees Celsius, soaking time is 10 hours；
S4：Pre-freeze is handled：Timber after immersion is put into pre-freeze device and carries out pre-freeze processing, the pre-freeze time is 28 hours, Pre-freezing temperature is -18 degrees Celsius, needs that processing, the method for the drying process is dried to timber before carrying out pre-freeze processing For vacuum drying；
S5：The pre-heat treatment：Timber after pre-freeze is put into dry kiln, is gradually heated up, heating rate be 20 degrees Celsius/it is small When, when temperature rises to 75 degrees Celsius, keep the temperature 4 hours；
S6：Heating：It after preheating, heats up again, heating rate is 25 degrees Celsius/hour so that temperature reaches 120 and takes the photograph Family name's degree keeps the temperature 10 hours；
S7：Detection：Timber after drying is subjected to conventional drying, cooling, cool-down method is natural cooling, and carries out humidity Detection.
Embodiment 2
S1：Raw material is cut；
S2：Steam treatment：Timber after cutting is put into sealed pressure tank, steam treatment is carried out to timber, at steam The time of reason is 30 minutes, steam pressure 0.2Mpa, and the vapor (steam) temperature is 120 degrees Celsius；
S3：Hot-water soak：Timber after steam treatment is put into water-bath and carries out heating water bath, the temperature of heating water bath It it is 70 degrees Celsius, soaking time is 6 hours；
S4：Pre-freeze is handled：Timber after immersion is put into pre-freeze device and carries out pre-freeze processing, the pre-freeze time is 18 hours, Pre-freezing temperature is -30 degrees Celsius, needs that processing, the method for the drying process is dried to timber before carrying out pre-freeze processing For vacuum drying；
S5：The pre-heat treatment：Timber after pre-freeze is put into dry kiln, is gradually heated up, heating rate be 15 degrees Celsius/it is small When, when temperature rises to 65 degrees Celsius, keep the temperature 2 hours；
S6：Heating：It after preheating, heats up again, heating rate is 20 degrees Celsius/hour so that temperature reaches 80 and takes the photograph Family name's degree keeps the temperature 4 hours；
S7：Detection：Timber after drying is subjected to conventional drying, cooling, cool-down method is natural cooling, and carries out humidity Detection.
Embodiment 3
S1：Raw material is cut；
S2：Steam treatment：Timber after cutting is put into sealed pressure tank, steam treatment is carried out to timber, at steam The time of reason is 35 minutes, steam pressure 0.3Mpa, and the vapor (steam) temperature is 115 degrees Celsius；
S3：Hot-water soak：Timber after steam treatment is put into water-bath and carries out heating water bath, the temperature of heating water bath It it is 83 degrees Celsius, soaking time is 8 hours；
S4：Pre-freeze is handled：Timber after immersion is put into pre-freeze device and carries out pre-freeze processing, the pre-freeze time is 23 hours, Pre-freezing temperature is -24 degrees Celsius, needs that processing, the method for the drying process is dried to timber before carrying out pre-freeze processing For vacuum drying；
S5：The pre-heat treatment：Timber after pre-freeze is put into dry kiln, is gradually heated up, heating rate be 17 degrees Celsius/it is small When, when temperature rises to 70 degrees Celsius, keep the temperature 3 hours；
S6：Heating：It after preheating, heats up again, heating rate is 23 degrees Celsius/hour so that temperature reaches 100 and takes the photograph Family name's degree keeps the temperature 7 hours；
S7：Detection：Timber after drying is subjected to conventional drying, cooling, cool-down method is natural cooling, and carries out humidity Detection.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace And modification, the scope of the present invention is defined by the appended.

Claims (6)

1. a kind of drying means of control wood shrinkage, it is characterised in that：The drying means of the control wood shrinkage includes as follows Step：
S1：Raw material is cut；
S2：Steam treatment：Timber after cutting is put into sealed pressure tank, steam treatment is carried out to timber, steam treatment Time is 30-40 minutes；
S3：Hot-water soak：Timber after steam treatment is put into water-bath and carries out heating water bath, the temperature of heating water bath is 70-95 degrees Celsius, soaking time is 6-10 hours；
S4：Pre-freeze is handled：Timber after immersion is put into pre-freeze device and carries out pre-freeze processing, the pre-freeze time is 18-28 hours, in advance It is -18 to -30 degrees Celsius to freeze temperature；
S5：The pre-heat treatment：Timber after pre-freeze is put into dry kiln, is gradually heated up, when temperature rises to 65-75 degrees Celsius, Heat preservation 2-4 hours；
S6：Heating：It after preheating, heats up again so that temperature reaches 80-120 degrees Celsius, keeps the temperature 4-10 hours；
S7：Detection：Timber after drying is subjected to conventional drying, cooling, and carries out Humidity Detection.
2. a kind of drying means of control wood shrinkage according to claim 1, it is characterised in that：In the step S2 Steam pressure is 0.2-0.4Mpa, and the vapor (steam) temperature is 120-130 degrees Celsius.
3. a kind of drying means of control wood shrinkage according to claim 1, it is characterised in that：The step step S4 In, it needs that processing is dried to timber before carrying out pre-freeze processing, the method for the drying process is vacuum drying.
4. a kind of drying means of control wood shrinkage according to claim 1, it is characterised in that：In the step S5 Heating rate is 15-20 degrees Celsius/hour.
5. a kind of drying means of control wood shrinkage according to claim 1, it is characterised in that：In the step S6 Heating rate is 20-25 degrees Celsius/hour.
6. a kind of drying means of control wood shrinkage according to claim 1, it is characterised in that：In the step S7 Cool-down method is natural cooling.
CN201810045670.3A 2018-01-17 2018-01-17 A kind of drying means of control wood shrinkage Pending CN108453856A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810045670.3A CN108453856A (en) 2018-01-17 2018-01-17 A kind of drying means of control wood shrinkage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810045670.3A CN108453856A (en) 2018-01-17 2018-01-17 A kind of drying means of control wood shrinkage

Publications (1)

Publication Number Publication Date
CN108453856A true CN108453856A (en) 2018-08-28

Family

ID=63220593

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810045670.3A Pending CN108453856A (en) 2018-01-17 2018-01-17 A kind of drying means of control wood shrinkage

Country Status (1)

Country Link
CN (1) CN108453856A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101015925A (en) * 2007-02-15 2007-08-15 吴义强 Method for drying yate
CN103659973A (en) * 2013-11-26 2014-03-26 广西生态工程职业技术学院 High temperature treatment technology for fast-growing man-made forest eucalyptus wood
CN105387691A (en) * 2015-11-24 2016-03-09 南京林业大学 Drying method for controlling wood collapse
CN106142266A (en) * 2016-06-30 2016-11-23 成都华聚杨武家具有限公司 A kind of wood material for furniture drying means
CN106696026A (en) * 2016-12-06 2017-05-24 阜阳市伟叶家具有限公司 Fraxinus mandshurica drying method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101015925A (en) * 2007-02-15 2007-08-15 吴义强 Method for drying yate
CN103659973A (en) * 2013-11-26 2014-03-26 广西生态工程职业技术学院 High temperature treatment technology for fast-growing man-made forest eucalyptus wood
CN105387691A (en) * 2015-11-24 2016-03-09 南京林业大学 Drying method for controlling wood collapse
CN106142266A (en) * 2016-06-30 2016-11-23 成都华聚杨武家具有限公司 A kind of wood material for furniture drying means
CN106696026A (en) * 2016-12-06 2017-05-24 阜阳市伟叶家具有限公司 Fraxinus mandshurica drying method

Similar Documents

Publication Publication Date Title
CN101224593B (en) Wood heat treatment method
CN1815115B (en) Wood rapid-drying method
CN108911777B (en) High-temperature-resistant quartz fiber reinforced silica-based composite material and preparation method and application thereof
CN105627699B (en) A kind of drying means and device of easy seasoned wood
CN106440671A (en) Wood drying and anticorrosive treatment method
CN106766708A (en) A kind of wood chip drying process
CN105171866A (en) Method for modifying wood through combination of resin impregnation reinforcing, vacuum drying and heat treatment
CN105276930B (en) A kind of method for suppressing drying of wood shrinkage
CN107036394B (en) A kind of vacuum drying method of nanmu plate
CN106871593B (en) Active drying method for wood
CN108453856A (en) A kind of drying means of control wood shrinkage
CN106313249A (en) Deep carbonation method for thick and heavy wood plate
CN105887210B (en) It is a kind of to improve the unwinding filature production technology with obvolvent stability of raw silks of fresh cocoons
CN106003321B (en) Suitable for log or the heat modification method of thick square bar
CN107891504A (en) The drying means of Eucalyptus core plate
CN107365820A (en) A kind of method that moringa seeds shell prepares polypeptide
JP2014046550A (en) Oil penetration/drying device
CN106313240A (en) Drying treatment method for wood
CN108844291A (en) A method of utilizing microwave drying timber floor
CN107763977A (en) A kind of China fir drying means
CN106196906A (en) A kind of dewatering for lithium-ion electric core and dehydration equipment
JP2004138338A (en) Method of drying timber with high quality
CN105522627A (en) Light wood processing method
KR100997822B1 (en) Thermal treating method for log
CN109556357A (en) A kind of floor drying means of red gum

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20180828

RJ01 Rejection of invention patent application after publication