CN107062807A - A kind of cocoon drying technique - Google Patents
A kind of cocoon drying technique Download PDFInfo
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- CN107062807A CN107062807A CN201710323987.4A CN201710323987A CN107062807A CN 107062807 A CN107062807 A CN 107062807A CN 201710323987 A CN201710323987 A CN 201710323987A CN 107062807 A CN107062807 A CN 107062807A
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- dry section
- cocoon
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- dry
- air humidity
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- 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
-
- 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
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/04—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour circulating over or surrounding the materials or objects to be dried
-
- 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
- F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
- F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
- F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
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- Chemical Or Physical Treatment Of Fibers (AREA)
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- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a kind of cocoon drying technique,（1）Prepare；（2）Dry section；（3）Drying process.The application to fresh silkworm by carrying out triphasic different drying process, enable in silk cocoon, in, outer layer falls thread and substantially reduced, reelability percentage is significantly improved, by to wind speed in three dry sections, the reciprocation that temperature and relative air humidity certain two become, the reelability percentage of silk cocoon can further be improved, by using radiation treatment when the second dry section is handled, improve significantly raising to silk cocoon isstudied tool, pass through the first dry section, the microwave treatment of the reciprocation coordinated different capacity of temperature humidity in second dry section, cocoon quality can be significantly improved, improve silk production rate.
Description
Technical field
The invention belongs to cocoon drying technical field, and in particular to a kind of cocoon drying technique.
Background technology
The drying of silk cocoon is the work silkworm chrysalis for killing fresh cocoon cocoon intracavitary in Primary Processing using heat energy, and removes amount of water,
Fresh cocoon is dried into the technical process as dried cocoon, cocoon drying is commonly called as.Dry purpose is to prevent nymphosis moth living, silkworm during silk cocoon storage
The parasitic fly blow that body is left goes out maggot and pupal cell rots and damages cocoon layer, while also making cocoon layer is appropriate after Overheating Treatment to change outer layer
The readily soluble property of silk gum, strengthens cocoon cooking resistivity, protects the unwinding of cocoon, is conducive to filature and storage.In cocoon drying process
In, it should be reached suitable dry equal according to the characteristic of silk cocoon, using rational temperature, humidity and wind speed, it is to avoid the excessive denaturation of silk gum
It is even, save cocoon quality from damage, reached during cocoon drying by the way that silk cocoon internal moisture to be diffused through to the method for surface evaporation, the water of silk cocoon layer
Point it is easy to discharge, so cocoon drying is critical that to obtain the moisture effusion of silkworm chrysalis body inside silk cocoon.
The content of the invention
The purpose of the present invention is that there is provided a kind of cocoon drying technique the problem of being directed to existing.
The present invention is achieved by the following technical solutions：
A kind of cocoon drying technique, comprises the following steps：
（1）Prepare：By fresh silkworm, after removing surface, weighed, be subsequently placed in ventilation and place 2-3 hours；
（2）Dry section：Drying process is divided into three dry sections, and the first dry section is dried using hot blast constant speed, and wind speed is 0.35m/
S, relative air humidity is gradually decremented to 6% by 12%, then keeps constant, and temperature is gradually incremented to 120 DEG C by 112 DEG C, then
Keep constant；Second dry section is dried using hot blast constant temperature, and temperature is 102 DEG C, and wind speed is gradually incremented to 0.65m/ by 0.35m/s
S, then keeps constant, relative air humidity is gradually decremented to 6% by 10%, then keeps constant；3rd dry section uses hot blast
Fixed wet drying, relative air humidity is 8%, and temperature is gradually decremented to 85 DEG C by 93 DEG C, then keeps constant, wind speed is by 0.70m/s
0.40m/s is gradually decremented to, then keeps constant；
（3）Drying process：By step（1）In fresh silkworm be placed into the first dry section, place 30-35min after, while using micro-
Ripple carries out single treatment, and processing time is 2-4min, then proceedes to place 10min, takes out fresh silkworm, be placed into ventilation naturally cold
But to after room temperature, then fresh silkworm is placed into the second dry section, places after 25-28min, carry out radiation treatment 30-35s, then
Continue to place 8-10min, take out fresh silkworm, be placed into ventilation and naturally cool to after room temperature, then fresh silkworm is placed into the 3rd drying
Qu Zhong, is placed after 10-15min, carries out after-treatment using microwave, processing time is 1-2min, then proceedes to place 15min,
Then take out, obtain dry silkworm.
Further, the step（2）In the first dry section relative air humidity increase and decrease speed be 0.5%/min, temperature passs
Speedup rate is 0.5 DEG C/min.
Further, the step（2）In the second dry section wind speed ascending rate be 1m/min, relative air humidity successively decreases
Speed is 0.2%/min.
Further, the step（2）In the 3rd dry section lapse of temperature speed be 1 DEG C/min, wind speed decline rate is
2m/min。
Further, the step（3）Middle single treatment microwave power is 110W.
Further, the step（3）Middle after-treatment microwave power is 80W.
Further, the step（3）What middle radiation treatment was used60The processing of Co- gamma-rays.
Further, it is described60Co- gamma-rays processing treatment dosage is 0.28kGy.
The present invention has advantages below compared with prior art：The application is triphasic different dry by being carried out to fresh silkworm
Processing, enables to silk cocoon inner, middle and outer layer to fall thread and substantially reduces, reelability percentage is significantly improved, by wind in three dry sections
Speed, temperature and relative air humidity it is certain two become reciprocation, can further improve the reelability percentage of silk cocoon, by
Use radiation treatment during the processing of the second dry section, silk cocoon isstudied tool improved significantly raising, by the first dry section,
The microwave treatment of the reciprocation coordinated different capacity of temperature humidity, can significantly improve cocoon quality, carry in second dry section
High silk production rate.
Embodiment
Embodiment 1
A kind of cocoon drying technique, comprises the following steps：
（1）Prepare：By fresh silkworm, after removing surface, weighed, be subsequently placed in ventilation and place 2 hours；
（2）Dry section：Drying process is divided into three dry sections, and the first dry section is dried using hot blast constant speed, and wind speed is 0.35m/
S, relative air humidity is gradually decremented to 6% by 12%, then keeps constant, and temperature is gradually incremented to 120 DEG C by 112 DEG C, then
Keep constant；Second dry section is dried using hot blast constant temperature, and temperature is 102 DEG C, and wind speed is gradually incremented to 0.65m/ by 0.35m/s
S, then keeps constant, relative air humidity is gradually decremented to 6% by 10%, then keeps constant；3rd dry section uses hot blast
Fixed wet drying, relative air humidity is 8%, and temperature is gradually decremented to 85 DEG C by 93 DEG C, then keeps constant, wind speed is by 0.70m/s
0.40m/s is gradually decremented to, then keeps constant；
（3）Drying process：By step（1）In fresh silkworm be placed into the first dry section, place 30min after, while using microwave
Single treatment is carried out, processing time is 2min, then proceed to place 10min, take out fresh silkworm, be placed into ventilation and naturally cool to
After room temperature, then fresh silkworm is placed into the second dry section, placed after 25min, carry out radiation treatment 30s, then proceed to place
8min, takes out fresh silkworm, is placed into ventilation and naturally cools to after room temperature, then fresh silkworm is placed into the 3rd dry section, places
After 10min, after-treatment is carried out using microwave, processing time is 1min, then proceed to place 15min, then take out, done
Silkworm.
The step（2）In the first dry section relative air humidity increase and decrease speed be 0.5%/min, temperature increment speed is
0.5℃/min。
The step（2）In the second dry section wind speed ascending rate be 1m/min, relative air humidity rate of regression is
0.2%/min。
The step（2）In the 3rd dry section lapse of temperature speed be 1 DEG C/min, wind speed decline rate be 2m/min.
The step（3）Middle single treatment microwave power is 110W.
The step（3）Middle after-treatment microwave power is 80W.
The step（3）What middle radiation treatment was used60The processing of Co- gamma-rays.
It is described60Co- gamma-rays processing treatment dosage is 0.28kGy.
Embodiment 2
A kind of cocoon drying technique, comprises the following steps：
（1）Prepare：By fresh silkworm, after removing surface, weighed, be subsequently placed in ventilation and place 3 hours；
（2）Dry section：Drying process is divided into three dry sections, and the first dry section is dried using hot blast constant speed, and wind speed is 0.35m/
S, relative air humidity is gradually decremented to 6% by 12%, then keeps constant, and temperature is gradually incremented to 120 DEG C by 112 DEG C, then
Keep constant；Second dry section is dried using hot blast constant temperature, and temperature is 102 DEG C, and wind speed is gradually incremented to 0.65m/ by 0.35m/s
S, then keeps constant, relative air humidity is gradually decremented to 6% by 10%, then keeps constant；3rd dry section uses hot blast
Fixed wet drying, relative air humidity is 8%, and temperature is gradually decremented to 85 DEG C by 93 DEG C, then keeps constant, wind speed is by 0.70m/s
0.40m/s is gradually decremented to, then keeps constant；
（3）Drying process：By step（1）In fresh silkworm be placed into the first dry section, place 35min after, while using microwave
Single treatment is carried out, processing time is 4min, then proceed to place 10min, take out fresh silkworm, be placed into ventilation and naturally cool to
After room temperature, then fresh silkworm is placed into the second dry section, placed after 28min, carry out radiation treatment 35s, then proceed to place
10min, takes out fresh silkworm, is placed into ventilation and naturally cools to after room temperature, then fresh silkworm is placed into the 3rd dry section, places
After 15min, after-treatment is carried out using microwave, processing time is 2min, then proceed to place 15min, then take out, done
Silkworm.
The step（2）In the first dry section relative air humidity increase and decrease speed be 0.5%/min, temperature increment speed is
0.5℃/min。
The step（2）In the second dry section wind speed ascending rate be 1m/min, relative air humidity rate of regression is
0.2%/min。
The step（2）In the 3rd dry section lapse of temperature speed be 1 DEG C/min, wind speed decline rate be 2m/min.
The step（3）Middle single treatment microwave power is 110W.
The step（3）Middle after-treatment microwave power is 80W.
The step（3）What middle radiation treatment was used60The processing of Co- gamma-rays.
It is described60Co- gamma-rays processing treatment dosage is 0.28kGy.
Embodiment 3
A kind of cocoon drying technique, comprises the following steps：
（1）Prepare：By fresh silkworm, after removing surface, weighed, be subsequently placed in ventilation and place 3 hours；
（2）Dry section：Drying process is divided into three dry sections, and the first dry section is dried using hot blast constant speed, and wind speed is 0.35m/
S, relative air humidity is gradually decremented to 6% by 12%, then keeps constant, and temperature is gradually incremented to 120 DEG C by 112 DEG C, then
Keep constant；Second dry section is dried using hot blast constant temperature, and temperature is 102 DEG C, and wind speed is gradually incremented to 0.65m/ by 0.35m/s
S, then keeps constant, relative air humidity is gradually decremented to 6% by 10%, then keeps constant；3rd dry section uses hot blast
Fixed wet drying, relative air humidity is 8%, and temperature is gradually decremented to 85 DEG C by 93 DEG C, then keeps constant, wind speed is by 0.70m/s
0.40m/s is gradually decremented to, then keeps constant；
（3）Drying process：By step（1）In fresh silkworm be placed into the first dry section, place 32min after, while using microwave
Single treatment is carried out, processing time is 3min, then proceed to place 10min, take out fresh silkworm, be placed into ventilation and naturally cool to
After room temperature, then fresh silkworm is placed into the second dry section, placed after 26min, carry out radiation treatment 32s, then proceed to place
9min, takes out fresh silkworm, is placed into ventilation and naturally cools to after room temperature, then fresh silkworm is placed into the 3rd dry section, places
After 12min, after-treatment is carried out using microwave, processing time is 1min, then proceed to place 15min, then take out, done
Silkworm.
The step（2）In the first dry section relative air humidity increase and decrease speed be 0.5%/min, temperature increment speed is
0.5℃/min。
The step（2）In the second dry section wind speed ascending rate be 1m/min, relative air humidity rate of regression is
0.2%/min。
The step（2）In the 3rd dry section lapse of temperature speed be 1 DEG C/min, wind speed decline rate be 2m/min.
The step（3）Middle single treatment microwave power is 110W.
The step（3）Middle after-treatment microwave power is 80W.
The step（3）What middle radiation treatment was used60The processing of Co- gamma-rays.
It is described60Co- gamma-rays processing treatment dosage is 0.28kGy.
Comparative example 1：Step is differed only in embodiment 1（3）In without microwave treatment twice.
Comparative example 2：Step is differed only in embodiment 1（3）In without radiation treatment.
Comparative example 3：Step is differed only in embodiment 1（3）In microwave treatment twice, microwave power is 110W.
Comparative example 4：Step is differed only in embodiment 1（3）In microwave treatment twice, microwave power is 80W.
Comparative example 5：It is step with the difference of embodiment 1（2）In the 3rd dry section temperature be 85 DEG C, keep it is constant.
Experiment：Tested using the fresh silkworm of spring silkworm rearing season, meausring apparatus uses MP200B type electronic balances, sensibility reciprocal is
0.001g, 8 groups are divided into by fresh silkworm, and each fresh silkworm diameter difference is no more than 0.5mm, every group of fresh silkworm 500g, lay thickness take it is fresh
2 times of silkworm diameter, are respectively adopted embodiment and processing are dried with comparative example, contrast influence of each processing to detection d cube：
Table 1
| Reelability percentage % | Fiber number dtex | Strength cN/dtex | Elongation % | Sericin degumming loss percentage % | Clean/point | |
| Embodiment 1 | 85.6 | 2.66 | 3.52 | 23.4 | 6.60 | 96.5 |
| Embodiment 2 | 85.5 | 2.65 | 3.51 | 23.3 | 6.59 | 96.4 |
| Embodiment 3 | 85.3 | 2.65 | 3.52 | 23.2 | 6.57 | 96.3 |
| Comparative example 1 | 81.6 | 2.63 | 3.49 | 22.2 | 6.52 | 94.8 |
| Comparative example 2 | 85.0 | 2.51 | 3.45 | 23.0 | 6.49 | 92.4 |
| Comparative example 3 | 82.5 | 2.64 | 3.51 | 22.6 | 6.54 | 95.1 |
| Comparative example 4 | 83.7 | 2.64 | 3.52 | 22.7 | 6.55 | 95.6 |
| Comparative example 5 | 85.1 | 2.65 | 3.50 | 23.3 | 6.32 | 96.4 |
The secondary different work(used in the present invention it can be seen from the contrast in table 1 between ratio 1, comparative example 3, comparative example 4
The microwave treatment of rate can improve the reelability percentage of silk cocoon silk, and improve the elongation of silk cocoon silk, it can be seen from comparative example 2 originally
Radiation treatment can significantly improve the fiber number and strength of silk cocoon silk in invention, the step in the present invention it can be seen from comparative example 5
（2）In the 3rd dry section temperature use intermittent warming, the sericin degumming loss percentage of silk cocoon can be significantly improved.
Claims (8)
1. a kind of cocoon drying technique, it is characterised in that comprise the following steps：
（1）Prepare：By fresh silkworm, after removing surface, weighed, be subsequently placed in ventilation and place 2-3 hours；
（2）Dry section：Drying process is divided into three dry sections, and the first dry section is dried using hot blast constant speed, and wind speed is 0.35m/
S, relative air humidity is gradually decremented to 6% by 12%, then keeps constant, and temperature is gradually incremented to 120 DEG C by 112 DEG C, then
Keep constant；Second dry section is dried using hot blast constant temperature, and temperature is 102 DEG C, and wind speed is gradually incremented to 0.65m/ by 0.35m/s
S, then keeps constant, relative air humidity is gradually decremented to 6% by 10%, then keeps constant；3rd dry section uses hot blast
Fixed wet drying, relative air humidity is 8%, and temperature is gradually decremented to 85 DEG C by 93 DEG C, then keeps constant, wind speed is by 0.70m/s
0.40m/s is gradually decremented to, then keeps constant；
（3）Drying process：By step（1）In fresh silkworm be placed into the first dry section, place 30-35min after, while using micro-
Ripple carries out single treatment, and processing time is 2-4min, then proceedes to place 10min, takes out fresh silkworm, be placed into ventilation naturally cold
But to after room temperature, then fresh silkworm is placed into the second dry section, places after 25-28min, carry out radiation treatment 30-35s, then
Continue to place 8-10min, take out fresh silkworm, be placed into ventilation and naturally cool to after room temperature, then fresh silkworm is placed into the 3rd drying
Qu Zhong, is placed after 10-15min, carries out after-treatment using microwave, processing time is 1-2min, then proceedes to place 15min,
Then take out, obtain dry silkworm.
2. a kind of cocoon drying technique according to claim 1, it is characterised in that the step（2）In the first dry section
Relative air humidity increase and decrease speed is 0.5%/min, and temperature increment speed is 0.5 DEG C/min.
3. a kind of cocoon drying technique according to claim 1, it is characterised in that the step（2）In the second dry section
Wind speed ascending rate is 1m/min, and relative air humidity rate of regression is 0.2%/min.
4. a kind of cocoon drying technique according to claim 1, it is characterised in that the step（2）In the 3rd dry section
Lapse of temperature speed is 1 DEG C/min, and wind speed decline rate is 2m/min.
5. a kind of cocoon drying technique according to claim 1, it is characterised in that the step（3）Middle single treatment is micro-
Wave power is 110W.
6. a kind of cocoon drying technique according to claim 1, it is characterised in that the step（3）Middle after-treatment is micro-
Wave power is 80W.
7. a kind of cocoon drying technique according to claim 1, it is characterised in that the step（3）Middle radiation treatment is adopted
60The processing of Co- gamma-rays.
8. a kind of cocoon drying technique according to claim 2, it is characterised in that described60Co- gamma-rays handles inorganic agent
Measure as 0.28kGy.
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|---|---|---|---|
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| CN107062807B CN107062807B (en) | 2018-05-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109140906A (en) * | 2018-08-17 | 2019-01-04 | 安徽三利丝绸集团有限公司 | A kind of cocoon drying method improving silk mechanical property and thermal stability |
| CN109234814A (en) * | 2018-07-23 | 2019-01-18 | 安徽三利丝绸集团有限公司 | It is a kind of to guarantee that the two of cocoon quality rushes drying means |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU199281U1 (en) * | 2019-12-05 | 2020-08-25 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный лесотехнический университет имени С.М. Кирова" | External chamber device for drying wood-polymer filament |
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| SU1101641A1 (en) * | 1983-06-21 | 1984-07-07 | Центральный Научно-Исследовательский Институт По Производству И Переработке Натурального Шелка | Method of drying cocoons |
| JPH04370208A (en) * | 1991-06-13 | 1992-12-22 | Kanebo Ltd | Silk reeling from cocoon |
| JPH108323A (en) * | 1996-06-25 | 1998-01-13 | Susumu Kiyokawa | Pretreatment of silk yarn |
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| CN101864601A (en) * | 2010-03-18 | 2010-10-20 | 苏州大学 | Method suitable for drying bombyx mori cocoons with long cocoon silks and fine sizes |
| CN104406368A (en) * | 2014-11-07 | 2015-03-11 | 重庆汇田机械制造有限公司 | Silkworm cocoon baking process |
| CN105004163A (en) * | 2015-07-31 | 2015-10-28 | 无锡乐华自动化科技有限公司 | Stage-by-stage silkworm cocoon drying method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| SU1101641A1 (en) * | 1983-06-21 | 1984-07-07 | Центральный Научно-Исследовательский Институт По Производству И Переработке Натурального Шелка | Method of drying cocoons |
| JPH04370208A (en) * | 1991-06-13 | 1992-12-22 | Kanebo Ltd | Silk reeling from cocoon |
| JPH108323A (en) * | 1996-06-25 | 1998-01-13 | Susumu Kiyokawa | Pretreatment of silk yarn |
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| CN104406368A (en) * | 2014-11-07 | 2015-03-11 | 重庆汇田机械制造有限公司 | Silkworm cocoon baking process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109234814A (en) * | 2018-07-23 | 2019-01-18 | 安徽三利丝绸集团有限公司 | It is a kind of to guarantee that the two of cocoon quality rushes drying means |
| CN109140906A (en) * | 2018-08-17 | 2019-01-04 | 安徽三利丝绸集团有限公司 | A kind of cocoon drying method improving silk mechanical property and thermal stability |
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Effective date of registration: 20220726 Address after: 237300 in the hospital of Anhui Sanli group Nanxi silk Co., Ltd., Nanxi Town, Jinzhai County, Lu'an City, Anhui Province Patentee after: Jinzhai Xinsilk Road Textile Co.,Ltd. Address before: 237300 Jinye Road, Jinzhai modern industrial park, Lu'an City, Anhui Province Patentee before: Anhui New Silk Road cocoon silk Co.,Ltd. |