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A method of drying cashmere loose fibers using radio frequency

A technology for radio frequency drying and cashmere fiber, which is applied in drying, method combination to dry solid materials, drying solid materials, etc. Uneven drying and other problems, achieve uniform drying effect, avoid large differences between dry and wet, and accurately control the moisture regain

Active Publication Date: 2017-08-08
CONSINEE GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because cashmere loose fibers need to withstand high temperatures close to 100 degrees for a long time in the hot air drying method, the surface state and internal structure of cashmere fibers will be seriously damaged. This traditional drying method is also due to the looseness and circulation of cashmere fibers. Due to the characteristics of air flow and other reasons, there is uneven drying of cashmere fibers, and the difference between dry and wet cashmere fibers after drying is large, and the difference in moisture regain is more than + / -5%.
At the same time, the cashmere fiber is directly discharged after drying with hot air, which cannot be reused, and the energy loss is very large

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1, a method for drying cashmere loose fibers using radio frequency, is characterized by comprising the following steps: Step A): dehydrating the cashmere fibers with a centrifugal dehydrator, the rotational speed of the centrifugal dehydrator is 6000 rpm, The dehydration time is between 10 minutes, and the moisture content of the cashmere fiber is uniformly controlled at 40% after dehydration. Step B): spread the dehydrated cashmere fibers on the conveying flat curtain, and feed them between the upper and lower plates of a radio frequency generator with a power of 80KVA at a speed of 18 m / h. The distance between the upper and lower plates is 400 mm, the radio frequency generator emits a radio frequency of 27.00 MHz to the cashmere fiber to dry the cashmere fiber. Step C): During the drying process, the moisture evaporated from the cashmere fibers is discharged out of the radio frequency generator through an exhaust fan. Step D): collecting and packaging the ...

Embodiment 2

[0014] Embodiment 2, a method for drying cashmere loose fibers using radio frequency, is characterized by comprising the following steps: Step A): dehydrating the cashmere fibers with a centrifugal dehydrator, the rotational speed of the centrifugal dehydrator is 7000 rpm, The dehydration time is between 15 minutes, and the moisture content of the cashmere fiber is uniformly controlled at 38% after dehydration. Step B): Lay the dehydrated cashmere fiber on the conveying flat curtain, and feed it between the upper and lower plates of a radio frequency generator with a power of 100KVA at a speed of 20 m / h. The distance between the upper and lower plates is 300 mm, the radio frequency generator emits a radio frequency of 27.12 MHz to the cashmere fiber to dry the cashmere fiber. Step C): During the drying process, the moisture evaporated from the cashmere fibers is discharged out of the radio frequency generator through an exhaust fan. Step D): collecting and packaging the dried...

Embodiment 3

[0015] Embodiment 3 A method for drying cashmere loose fibers using radio frequency, which is characterized by comprising the following steps: Step A): dehydrating the cashmere fibers with a centrifugal dehydrator, and the rotational speed of the centrifugal dehydrator is 8000 rpm , the dehydration time is 20 minutes, and the moisture content of the cashmere fiber after dehydration is uniformly controlled at 36%-. Step B): Lay the dehydrated cashmere fiber on the conveying flat curtain, and feed it between the upper and lower plates of the power 150KVA radio frequency generator at a speed of 22 meters per hour, and the distance between the upper and lower plates is 200 mm, the radio frequency generator emits a radio frequency of 27.50 MHz to the cashmere fiber to dry the cashmere fiber. Step C): During the drying process, the moisture evaporated from the cashmere fibers is discharged out of the radio frequency generator through an exhaust fan. Step D): collecting and packagin...

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Abstract

The invention discloses a method for drying cashmere loose fibers through the radio frequency, and relates to a method for drying the cashmere loose fibers with the higher water content. The method includes the four steps including centrifugal dewatering, radio frequency drying, strong air exhausting and collecting packaging. Compared with the prior art, the cashmere fibers are dried through the radio frequency so that damage to the surface state and the internal structure of the cashmere fibers can be greatly reduced, and the after-drying moisture regain of the cashmere fibers can be accurately controlled; and meanwhile, the cashmere fibers have the puffing effect, and the physical characteristics such as the elasticity and the compliance of the cashmere fibers are improved.

Description

technical field [0001] The invention relates to a method capable of drying cashmere loose fibers with higher water content. Background technique [0002] At present, the hot air drying method is mainly used for drying cashmere loose fibers. The main process is to use steam to heat the circulating airflow to about 100 degrees, and then use the circulating fan to make the high-temperature airflow pass through the cashmere fibers, and the hot air and cashmere loose fibers are heated. Exchange, let the thermal energy heat the cashmere loose fiber to evaporate the moisture in the fiber, and take away the steam through the hot air, and then discharge the moisture into the atmosphere through the exhaust device to achieve the purpose of drying. Cashmere fibers containing moisture need to be dried at a high temperature for more than 30 minutes to achieve the desired degree of dryness required by the process. Because cashmere loose fibers need to withstand high temperatures close to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F26B7/00
Inventor 金光吴艺峰
Owner CONSINEE GRP CO LTD
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