Spinning device and polyacrylonitrile fiber spinning machine

A technology of polyacrylonitrile fiber and spinning device, which is applied in wet spinning method, drawing spinning method, feeding solution to spinneret, etc., can solve the problems of complex equipment structure, large space occupation and high production cost, and achieve shortened time. Process flow, high production efficiency, and the effect of improving quality

Pending Publication Date: 2020-12-25
吉林富博纤维研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art that the spinning machine needs to be separately provided with a water washing device and a drying roller, resulting in a complex structure of the entire equipment, a large space occupa

Method used

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  • Spinning device and polyacrylonitrile fiber spinning machine
  • Spinning device and polyacrylonitrile fiber spinning machine
  • Spinning device and polyacrylonitrile fiber spinning machine

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0049] This embodiment provides a spinning device and a polyacrylonitrile fiber spinning machine with the spinning device:

[0050] Such as Figure 1 to Figure 7 As shown, the present embodiment provides a spinning device, and the spinning device includes a pair of rollers consisting of a first spinning roll 12 and a second spinning roll 11 with different diameters, wherein the second spinning roll 11 The diameter is greater than the diameter of the first spinning roll 12, and the filaments alternately pass through the first spinning roll 12 and the second spinning roll 11 in turn, and the filaments are wound from one end of the pair of rolls to the other end, and the second spinning The roller 11 includes a water washing section 11a, and water is sprayed on the water washing section 11a by a water spraying mechanism to realize water washing of the filaments.

[0051] Preferably, in this embodiment, multiple first spinning rolls 12 correspond to one second spinning roll 11 , ...

Embodiment 2

[0112] On the basis of the first embodiment, this embodiment provides a process for preparing polyacrylonitrile fibers using the polyacrylonitrile fiber spinning machine in the first embodiment.

[0113] A preparation process for polyacrylonitrile fibers, comprising:

[0114] Spinning the spinning dope through a spinning device;

[0115] The sprayed spinning stock solution is shaped by a forming device to obtain filaments;

[0116] The formed filaments are washed with water and dried to obtain polyacrylonitrile fibers.

[0117] In order to realize the preparation technology of polyacrylonitrile fiber in the present embodiment, adopt such as Figure 1 to Figure 3 The spinning machine shown carries out the production of polyacrylonitrile fibers. Described spinning machine comprises frame 15, is used for the spinneret device that spinning dope is carried out spinning, makes the spinning dope of spraying form the molding device that forms filament, and carries out follow-up tre...

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Abstract

The invention discloses a spinning device. The spinning device comprises a roller composed of first spinning rollers and a second spinning roller which are different in diameter, filaments alternatelypass through the first spinning rollers and the second spinning roller and are wound from one end of the roller to the other end of the roller, the second spinning roller comprises a washing section,a water spraying mechanism sprays water to the washing section to wash the filaments, and the quality of the filaments is further ensured. The polyacrylonitrile fiber spinning machine comprises a forming device and the spinning device, the forming device comprises a coagulating bath tank, a primary washing tank and a drafting roller arranged between the coagulating bath tank and the primary washing tank, the diameter of the drafting roller is d, the rotating speed of the drafting roller is n, the diameter of the first spinning rollers is d1, the rotating speed of the first spinning rollers isn1, and n/n1 is smaller than d1/d. The speed of the filaments entering the primary washing tank is smaller than the speed of the filaments leaving the primary washing tank, in the whole technologicalprocess, only one-time drafting is carried out in the primary washing tank, multiple times of drafting are not needed, and production equipment is simplified.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a spinning device and a polyacrylonitrile fiber spinning machine. Background technique [0002] The polyacrylonitrile fibers currently on the market mainly include acrylic staple fibers, acrylic filaments and polyacrylonitrile-based carbon fiber precursors, all of which have similar production processes. Among them, the difference between acrylic filament and other polyacrylonitrile fibers is that its current application field is mainly textile fabrics. Therefore, the requirements for the uniformity of acrylic filament are high, and the requirements for the stability of its production quality are also higher. . The above-mentioned characteristics have also caused acrylic filaments to be compared with acrylic staple fibers or polyacrylonitrile-based carbon fiber precursors. If the same production process and equipment are used for production, the production cost is higher, which...

Claims

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Application Information

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IPC IPC(8): D01D5/06D01D5/16D01D10/06D01D1/06
CPCD01D1/06D01D5/06D01D5/16D01D10/06
Inventor 刘海亮宋德武郑成军张弘孟祥化王富余关东雪高嘉徽
Owner 吉林富博纤维研究院有限公司
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