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A method and device for vertical wet spinning

A wet spinning, vertical technology, applied in the field of vertical wet spinning, can solve the problem of molecular structure orientation dispersion, etc., to achieve the effect of improving the tensile breaking strength of fibers

Active Publication Date: 2018-02-06
四川辉腾科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention is aimed at the defect that the degree of orientation of the molecular structure is scattered due to the influence of gravity when the existing horizontal wet spinning stock solution is drawn to form the primary fiber.

Method used

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  • A method and device for vertical wet spinning

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Experimental program
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Effect test

Embodiment 1

[0025] A vertical wet spinning device, including a pump shaft, a pump shaft clutch, a metering pump, a raw liquid main pipe, a coagulation bath, a primary coagulation liquid pipeline, a U-shaped coagulation bath tube, a first godet, and a straight coagulation bath The pump shaft clutch is set on the pump shaft, the raw liquid main pipe is connected to the coagulation bath through the metering pump set on the pump shaft clutch, the primary coagulation liquid pipeline is connected to the coagulation bath, and the coagulation bath Connect with one end of the U-shaped coagulation bath tube, set the first godet above the other end of the coagulation bath, set the straight coagulation bath tube on the upper end of the first godet, and set the second coagulation bath tube on the upper end of the straight coagulation bath tube. Godet.

[0026] An overflow port is provided on the straight coagulation bath pipe.

[0027] A spinneret is arranged in the coagulation bath, and the spinnere...

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Abstract

The invention belongs to the technical field of specialty fibers, and particularly relates to a vertical type wet spinning method and device. The device comprises a pump shaft (1), a pump shaft clutch (2), a metering pump (3), a stock solution header pipe (4), a coagulation bath tank (5), a first-level coagulation liquid pipeline (6), a U-shaped coagulation bath pipe (7), a first draw-off godet (8), a straight coagulation bath pipe (9), an overflow port (10) and a second draw-off godet (11). The device is characterized in that the pump shaft (1) is provided with the pump shaft clutch (2), the stock solution header pipe (4) is connected with the coagulation bath tank (5) through the metering pump (3) arranged on the pump shaft clutch (2), and the first-level coagulation liquid pipeline (6) is communicated with the coagulation bath tank (5). According to the vertical type wet spinning method and device, longitudinal drawing is performed on nascent fibers through gravity by adopting the vertical type special wet spinning method, the nascent fiber drawing direction and the coagulation liquid flowing direction are consistent with the gravity direction, therefore, the influence of the gravity on molecular structure orientation is avoided, and the molecular structure orientation is more concentrated.

Description

technical field [0001] The invention belongs to the technical field of special fibers, in particular to a vertical wet spinning method and device. Background technique [0002] Wet spinning is one of the main spinning methods of chemical fibers. Aramid III fiber spinning technology at home and abroad has been improved on traditional wet spinning to form a relatively complete manufacturing system. [0003] Generally, wet spinning is mainly composed of coagulation, spray washing, cold and hot drying, winding, oiling / sizing and heat treatment. [0004] Coagulation process: After the spinning dope is metered by a metering pump, it is filtered through a candle filter and enters the spinning assembly, then extruded from the spinneret hole, and solidified into a filament in the medium in the coagulation bath. When the high-speed jet of stock solution is solidified and formed in the bath, the velocity of the stock solution is very high, and the concentration difference with the bat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D5/06
CPCD01D5/06
Inventor 韩和平杨开丛张鸥
Owner 四川辉腾科技股份有限公司
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