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Fiber gas drying device and fiber gas drying method

A gas drying and fiber technology, applied in the direction of artificial filament cleaning/drying, etc., can solve the problems of environmental pollution, energy consumption increase, etc., and achieve the effect of environmental friendliness, excellent fiber performance and low energy consumption

Active Publication Date: 2021-12-21
CHINESE TEXTILE ACAD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Heating and drying often requires bulky equipment and a lot of heat, resulting in environmental pollution and increased energy consumption

Method used

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  • Fiber gas drying device and fiber gas drying method
  • Fiber gas drying device and fiber gas drying method
  • Fiber gas drying device and fiber gas drying method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082]Ultra-high molecular weight polyethylene (viscosity average molecular weight: 4 million) is dispersed in decahydronaphthalene solvent (mass ratio of polyethylene to decahydronaphthalene: 10:90), swelled at 99°C for 2 hours and then heated to 160°C to dissolve to form a uniform spinning solution. After metering, it is extruded from the spinneret hole to form a fine spinning stream, which is cooled and solidified in a water bath at 10°C to obtain a solid jelly tow. The solid jelly tow passes through a 90°C air box, and a device with a diameter of 50mm gas cylinder, the gas cylinder is fed with 0.2MPa, 90°C nitrogen gas, the gas cylinder is equipped with a gas distribution pipe and a metal gas damping rod with a diameter of 7mm, and at the same time, the pulling ratio of the tow passing through the gas box is 1.01-1.8 times, Obtain dry raw silk. The dry raw silk is stretched after spinning to obtain polyethylene fibers with excellent fiber performance and a solvent content ...

Embodiment 2

[0084] Ultra-high molecular weight polyethylene (viscosity average molecular weight: 4 million) is dispersed in decahydronaphthalene solvent (mass ratio of polyethylene to decahydronaphthalene: 10:90), swelled at 99°C for 2 hours and then heated to 160°C to dissolve to form a uniform spinning solution. After metering, it is extruded from the spinneret hole to form a fine spinning stream. The fine spinning stream is cooled and solidified by side blowing at 60°C to obtain solid jelly tows. The solid jelly tows pass through a 100°C air box, and a diameter It is a 50mm gas cylinder, which is fed with nitrogen gas at 0.2MPa and 90°C. The gas cylinder is equipped with a gas distribution pipe and a metal gas damping rod with a diameter of 7mm. At the same time, the pulling ratio of the tow through the gas box is guaranteed to be 1.01-1.8 times , to obtain dry raw silk. The dry raw silk is stretched after spinning to obtain polyethylene fibers with excellent fiber performance and a so...

Embodiment 3

[0086] Ultra-high molecular weight polyethylene (viscosity average molecular weight: 4 million) is dispersed in decahydronaphthalene solvent (mass ratio of polyethylene to decahydronaphthalene: 10:90), swelled at 99°C for 2 hours and then heated to 160°C to dissolve to form a uniform spinning solution. After metering, it is extruded from the spinneret hole to form a fine spinning stream, which is cooled and solidified by a 70°C ring blower to obtain a solid jelly tow. The solid jelly tow passes through a 110°C air box, and a diameter It is a 20mm gas cylinder, and the gas cylinder is fed with 0.6MPa, 110°C nitrogen gas. The gas cylinder is equipped with a gas distribution pipe and a glass gas damping rod with a diameter of 5mm. At the same time, the pulling ratio of the tow passing through the gas box is guaranteed to be 1.01-1.8 times , to obtain dry raw silk. After the dry raw silk is spun and thermally stretched, the dry polyethylene fiber is obtained, the fiber performance...

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Abstract

The invention provides a fiber gas drying device and a fiber gas drying method, belonging to the technical field of textile machinery. The device includes a drying box, a plurality of air cylinders, an air source and an exhaust hole; a plurality of air cylinders are arranged on a side wall of the drying box, so that the multiple air cylinders are parallel to each other; the path of the fiber to be dried is along the path of the multiple air cylinders The air source is blown to the fiber to be dried after passing through the air cylinder; one end of the exhaust hole is connected with the accommodation space in the drying box, and the other end of the exhaust hole is connected with the outside world. The method comprises: after the spinning stock solution is pressurized and stabilized, a uniform spinning stock solution is obtained; the uniform spinning stock solution is extruded from a spinneret hole to form a spinning stream; the spinning stream is solidified and formed to obtain a wet state. Fiber; after the wet fiber is dried by the device, a dry tow is obtained. The device and the method are environmentally friendly, have low energy consumption, and the residual amount of the obtained fiber solvent is less than 100ppm.

Description

technical field [0001] The invention relates to the technical field of textile machinery, in particular to a fiber gas drying device and a fiber gas drying method. Background technique [0002] In the process of fiber preparation, molding or dyeing, a large amount of liquids such as solvents or coagulation baths are often required, and these liquids need to be removed eventually to obtain dry finished fibers. In order to remove these liquids, the traditional process is realized by heating and drying. Heating and drying often requires bulky equipment and a lot of heat, resulting in environmental pollution and increased energy consumption. Therefore, there is a need for an environmentally friendly drying device with low energy consumption. Contents of the invention [0003] In view of this, the present invention provides a fiber gas drying device and a fiber gas drying method, which are environmentally friendly and have low energy consumption, so they are more suitable for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D10/06
CPCD01D10/06
Inventor 李方全李鑫王万杰孙玉山孔令熙程金龙苏自强
Owner CHINESE TEXTILE ACAD