CN106288751A - A kind of drying process of purple willow - Google Patents
A kind of drying process of purple willow Download PDFInfo
- Publication number
- CN106288751A CN106288751A CN201610733331.5A CN201610733331A CN106288751A CN 106288751 A CN106288751 A CN 106288751A CN 201610733331 A CN201610733331 A CN 201610733331A CN 106288751 A CN106288751 A CN 106288751A
- Authority
- CN
- China
- Prior art keywords
- purple willow
- processed
- willow
- treatment
- purple
- 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
- F26B23/00—Heating arrangements
- F26B23/04—Heating arrangements using electric heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/02—Drying solid materials or objects by processes not involving the application of heat by using ultrasonic vibrations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
Abstract
The invention discloses the drying process of a kind of purple willow, comprise the steps: (1) purple willow pretreatment, (2) microwave treatment, (3) ultrasonic Treatment, the process of (4) heat-insulation pressure keeping, (5) after-treatment, (6) vacuum drying.The collocation of the present invention each step is rationally, can well improve the characteristic of purple willow itself, produce when significantly reducing dry and the stress of residual, cracking rate during dried reduces more than 70%, purple willow anti-cracking performance after dried is preferable, and has good pliability, tension folding quality, and relative crystallinity is higher, being difficult to moisture regain, use value is preferable.
Description
Technical field
The invention belongs to purple willow processing technique field, be specifically related to the drying process of a kind of purple willow.
Background technology
Wicker plaiting article, the baskets craft with wicker as primary raw material and utility.Wicker plaiting article is folks of china traditional handicraft product
One of.People are intended only as common daily utility in ancient times, the most gradually rise, the most gradually until decades after 20th century
Become selected areas of China foreign exchange earning project.Purple willow is one of conventional wicker plaiting article material, and the dried of purple willow is Qi
Essential step in Liu Jiagong, is also the stage occurred frequently of material cracks, because of the difference such as contractility at each position, easily causes out
Split, the problem of deformation occurs, and the problem such as the dried stress produced also can for follow-up processing, use and hide some dangers for, therefore
How preventing the problem of Cracking in purple willow dried process is one of those skilled in the art's urgent problem.
Summary of the invention
It is desirable to provide the drying process of a kind of purple willow, can effectively promote the dry mass of purple willow.
The present invention is achieved through the following technical solutions:
The drying process of a kind of purple willow, it is characterised in that comprise the steps:
(1) purple willow pretreatment:
After purple willow defoliation, roguing, in being then placed in food steamer, boiling water steams 15 ~ 20min, carries out peeling operation, finally after taking-up
Rinse well standby with clear water；
(2) microwave treatment:
Purple willow after step (1) being processed is put in closed environment, processes purple willow with microwave, and the power control of microwave is
900 ~ 950W, takes out standby after persistently processing 8 ~ 10min；
(3) ultrasonic Treatment:
Purple willow after step (2) being processed is put in ultrasonic Treatment instrument, and the frequency controlling ultrasound wave is 60 ~ 63KHz, persistently locates
Take out standby after reason 15 ~ 20min；
(4) heat-insulation pressure keeping processes:
Purple willow after step (3) is processed put into temperature be 38 ~ 42 DEG C, air pressure be 2 ~ 2.2MPa environment in, at heat-insulation pressure keeping
Take out standby after reason 10 ~ 15min；After microwave and ultrasound processes, carry out heat-insulation pressure keeping process, can prevent at above-mentioned two steps
Cause after reason that purple willow internal stress is excessive, organizational structure is the loosest, the problem that tension folding quality declines, be conducive to keeping it
Pliability；
(5) after-treatment:
Purple willow after step (4) being processed repeats the operation carried out described in step (2), (3), (4), corresponding process ginseng
Number is constant, takes out standby after having processed；In actual production, find a long continuous processing of operation, not only will not reach
To expected effect, the characteristic of purple willow can be brought bigger infringement on the contrary, such as continuous microwave and the ultrasonic Treatment of long period,
The characteristic such as wear-resisting, tension of purple willow can be greatly reduced, and operation is divided into two sections carry out overlapping process, be possible not only to improve
This problem, moreover it is possible to because reasonably coordinating intensity to improve the characteristic of purple willow, and then improve dry rate and quality；
(6) vacuum drying:
Purple willow after step (5) being processed is put in vacuum drying instrument, is dried process, keep vacuum be-0.08 ~-
0.085MPa, is dried purple willow water content to no more than 15% and takes out.
Further, during step (2) microwave treatment, the temperature controlling purple willow is not more than 70 DEG C.
Further, during step (3) ultrasonic Treatment, the temperature controlling purple willow is not more than 65 DEG C.Control microwave and ultrasonic
The temperature of purple willow when ripple processes, can effectively prevent high temperature to internal structural damage, be conducive to maintaining its original physical characteristic；
Further, when step (4) heat-insulation pressure keeping processes, the relative humidity controlling air is 70 ~ 80%.
Further, during step (6) vacuum drying treatment, controlling temperature in vacuum drying instrument is 58 ~ 62 DEG C, and air is relative
Humid control is 50 ~ 60%.
There is advantages that
The present invention, in order to improve the speed that purple willow is dried, reduces drying stress, purple willow has been carried out microwave and ultrasound process, has executed
The microwave treatment added can make pit membrane on parenchyma cell and prothenchyma (of wood) wall damaged, has got through this effective microtriche of pit cavity thin
Tube passage, expands circulation passage and the pipeline of moisture, improves follow-up rate of drying；The ultrasonic Treatment applied can be made
For cell wall and lumen, destroy part pit membrane, further enhancing its permeability, with microwave, there is collaborative process and imitate
Really, simultaneously both can well improve that purple willow is tangential, contract with dry rate radially and longitudinally, reduces cracking incidence rate, and can improve Qi
The relative crystallinity of willow；Finally the purple willow after processing is carried out vacuum drying treatment, advantageously reduce drying stress, accelerate to be dried
Processing speed, prevents it from deforming.Under the reasonable coordination effect of each step, the inventive method can well improve purple willow itself
Characteristic, produces when significantly reducing dry and the stress of residual, and cracking rate during dried reduces more than 70%, is dried place
Purple willow anti-cracking performance after reason is preferable, and has good pliability, tension folding quality, and relative crystallinity is higher, is difficult to
Moisture regain, use value is preferable.
Detailed description of the invention
Embodiment 1
The drying process of a kind of purple willow, comprises the steps:
(1) purple willow pretreatment:
After purple willow defoliation, roguing, in being then placed in food steamer, boiling water steams 15min, carries out peeling operation, finally with clear after taking-up
Water is rinsed well standby；
(2) microwave treatment:
Purple willow after step (1) being processed is put in closed environment, processes purple willow with microwave, and the power control of microwave is
950W, takes out standby after persistently processing 8min；
(3) ultrasonic Treatment:
Purple willow after step (2) being processed is put in ultrasonic Treatment instrument, and the frequency controlling ultrasound wave is 62KHz, persistently processes
Take out standby after 18min；
(4) heat-insulation pressure keeping processes:
Purple willow after step (3) is processed put into temperature be 40 DEG C, air pressure be 2MPa environment in, heat-insulation pressure keeping processes 15min
Rear taking-up is standby；
(5) after-treatment:
Purple willow after step (4) being processed repeats the operation carried out described in step (2), (3), (4), corresponding process ginseng
Number is constant, takes out standby after having processed；
(6) vacuum drying:
Purple willow after step (5) being processed is put in vacuum drying instrument, is dried process, and holding vacuum is-0.08MPa,
Purple willow water content is dried to no more than 13% and takes out.
Further, during step (2) microwave treatment, the temperature controlling purple willow is not more than 70 DEG C.
Further, during step (3) ultrasonic Treatment, the temperature controlling purple willow is not more than 65 DEG C.
Further, when step (4) heat-insulation pressure keeping processes, the relative humidity controlling air is 70 ~ 73%.
Further, during step (6) vacuum drying treatment, controlling temperature in vacuum drying instrument is 59 DEG C, and air is the wettest
Degree control is 52 ~ 55%.
Comparative example 1
Compared with Example 1, whole process does not carry out microwave treatment operation to this comparative example 1, and method step in addition is equal
Identical.
Comparative example 2
Compared with Example 1, whole process does not carry out ultrasonic Treatment operation, method step in addition to this comparative example 2
The most identical.
Comparative example 3
Compared with Example 1, whole process does not carry out heat-insulation pressure keeping and processes operation, method step in addition this comparative example 3
Rapid the most identical.
Comparative example 4
This comparative example 4 compared with Example 1, only carries out a microwave treatment and ultrasonic Treatment, but alignment processing is total
Duration is same as in Example 1, and method step in addition is the most identical.
Matched group
Existing purple willow drying method.
In order to contrast effect of the present invention, select the purple willow that same batch is gathered in, be dried by above-mentioned six kinds of modes respectively
Processing, following table is corresponding processing, performance comparison data:
| It is dried the cracking rate (%) adding man-hour | Use cracking rate (%) after drying | The purple willow Drying Collapse degree of depth (mm) | Humidity resistance (is marked) | |
| Embodiment 1 | 1.3 | 0.7 | 0.05 | 5 |
| Comparative example 1 | 3.1 | 1.0 | 0.17 | 4 |
| Comparative example 2 | 2.9 | 1.2 | 0.19 | 4 |
| Comparative example 3 | 2.1 | 0.9 | 0.14 | 3 |
| Comparative example 4 | 5.2 | 1.6 | 0.32 | 2 |
| Matched group | 4.6 | 2.4 | 0.46 | 3 |
Note: the dry cracking rate adding man-hour described in upper table refers to when purple willow is dried process, the cracking rate of purple willow；
Dried use cracking rate refer to purple willow be dried machine after cracking rate in the validity period of a year；Humidity resistance scoring number
Value is the bigger the better.
As can be seen from the above table, drying method of the present invention can well ensure that purple willow is not ftractureed in dry run,
And the purple willow quality after processing is preferably, cracking rate is significantly reduced, and humidity resistance has the biggest lifting, and use value is higher.
Claims (5)
1. the drying process of a purple willow, it is characterised in that comprise the steps:
(1) purple willow pretreatment:
After purple willow defoliation, roguing, in being then placed in food steamer, boiling water steams 15 ~ 20min, carries out peeling operation, finally after taking-up
Rinse well standby with clear water；
(2) microwave treatment:
Purple willow after step (1) being processed is put in closed environment, processes purple willow with microwave, and the power control of microwave is
900 ~ 950W, takes out standby after persistently processing 8 ~ 10min；
(3) ultrasonic Treatment:
Purple willow after step (2) being processed is put in ultrasonic Treatment instrument, and the frequency controlling ultrasound wave is 60 ~ 63KHz, persistently locates
Take out standby after reason 15 ~ 20min；
(4) heat-insulation pressure keeping processes:
Purple willow after step (3) is processed put into temperature be 38 ~ 42 DEG C, air pressure be 2 ~ 2.2MPa environment in, at heat-insulation pressure keeping
Take out standby after reason 10 ~ 15min；
(5) after-treatment:
Purple willow after step (4) being processed repeats the operation carried out described in step (2), (3), (4), corresponding process ginseng
Number is constant, takes out standby after having processed；
(6) vacuum drying:
Purple willow after step (5) being processed is put in vacuum drying instrument, is dried process, keep vacuum be-0.08 ~-
0.085MPa, is dried purple willow water content to no more than 15% and takes out.
The drying process of a kind of purple willow the most according to claim 1, it is characterised in that during step (2) microwave treatment, controls
The temperature of purple willow is not more than 70 DEG C.
The drying process of a kind of purple willow the most according to claim 1, it is characterised in that during step (3) ultrasonic Treatment, control
The temperature of purple willow processed is not more than 65 DEG C.
The drying process of a kind of purple willow the most according to claim 1, it is characterised in that when step (4) heat-insulation pressure keeping processes,
The relative humidity controlling air is 70 ~ 80%.
The drying process of a kind of purple willow the most according to claim 1, it is characterised in that during step (6) vacuum drying treatment,
Controlling temperature in vacuum drying instrument is 58 ~ 62 DEG C, and it is 50 ~ 60% that relative air humidity controls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610733331.5A CN106288751A (en) | 2016-08-27 | 2016-08-27 | A kind of drying process of purple willow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610733331.5A CN106288751A (en) | 2016-08-27 | 2016-08-27 | A kind of drying process of purple willow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106288751A true CN106288751A (en) | 2017-01-04 |
Family
ID=57676928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610733331.5A Pending CN106288751A (en) | 2016-08-27 | 2016-08-27 | A kind of drying process of purple willow |
Country Status (1)
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| CN (1) | CN106288751A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04343225A (en) * | 1991-03-11 | 1992-11-30 | Howard M Layton | Part drying system and method of drying part |
| US20020127374A1 (en) * | 2000-10-02 | 2002-09-12 | Michael Spratling | Adhesive materials for flooring and methods of using same |
| CN101327606A (en) * | 2008-07-16 | 2008-12-24 | 赵盛源 | Method for processing five-prevention lumber |
| CN101387471A (en) * | 2008-10-10 | 2009-03-18 | 中国林业科学研究院木材工业研究所 | Processing method for balancing moisture in wood |
| CN104441122A (en) * | 2014-09-25 | 2015-03-25 | 阜南县永兴工艺品有限公司 | Cracking-prevention treatment method of osier |
| CN104858953A (en) * | 2014-12-23 | 2015-08-26 | 王玉燕 | Plantation wood modification processing method |
| 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 |
-
2016
- 2016-08-27 CN CN201610733331.5A patent/CN106288751A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04343225A (en) * | 1991-03-11 | 1992-11-30 | Howard M Layton | Part drying system and method of drying part |
| US20020127374A1 (en) * | 2000-10-02 | 2002-09-12 | Michael Spratling | Adhesive materials for flooring and methods of using same |
| CN101327606A (en) * | 2008-07-16 | 2008-12-24 | 赵盛源 | Method for processing five-prevention lumber |
| CN101387471A (en) * | 2008-10-10 | 2009-03-18 | 中国林业科学研究院木材工业研究所 | Processing method for balancing moisture in wood |
| CN104441122A (en) * | 2014-09-25 | 2015-03-25 | 阜南县永兴工艺品有限公司 | Cracking-prevention treatment method of osier |
| CN104858953A (en) * | 2014-12-23 | 2015-08-26 | 王玉燕 | Plantation wood modification processing method |
| 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 |
Non-Patent Citations (2)
| Title |
|---|
| 李贤军: "《木材微波真空干燥特性及其热质迁移机理》", 30 November 2009 * |
| 赵建民等: "《木材概论》", 31 July 2002 * |
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |
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| RJ01 | Rejection of invention patent application after publication |