A method for efficient degassing and concentration enrichment in carbon fiber production and polymerization process

A polymerization process and carbon fiber technology, applied in separation methods, chemical instruments and methods, foam dispersion/prevention, etc., can solve problems such as difficult quantitative control of polymerization liquid concentration, inability to realize high-load continuous production, poor uniformity of polymerization liquid, etc., to achieve Achieve high-load continuous production, good uniformity, and prevent gel formation

Active Publication Date: 2018-12-04
ZHONG AN XIN TECH CO LTD +1
View PDF8 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] (2) It is difficult to quantitatively control the concentration of the polymerization solution after degassing;
[0009] (3) The homogeneity of the polymerization solution is poor;
[0010] (4) Intermittent operation, unable to achieve high-load continuous production

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for efficient degassing and concentration enrichment in carbon fiber production and polymerization process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0035] Please refer to figure 1 , this embodiment provides a high-efficiency degassing and concentration device for carbon fiber production and polymerization process, including a degassing kettle 1 . The top of the defoaming kettle 1 is provided with a feed pipe 5 for feeding the polymer solution to be defoamed. A packing layer 2 is arranged inside the defoaming kettle 1, and the packing layer 2 includes packing and upper and lower supports for supporting the packin...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The application discloses a device and a method for high-efficient deaeration and concentration of a carbon fiber production polymerization process. The high-efficient deaeration and concentration device of the carbon fiber production polymerization process comprises a deaeration kettle, a filler layer is arranged in the deaeration kettle, and a reboiler is connected to a position near the bottom of the deaeration kettle, a polymerization solution is introduced into the upper of the filler layer in the deaeration kettle, and the polymerization solution flows from top to bottom. According to the method, dimethylsulfoxide is introduced into the reboiler which is arranged below the deaeration kettle, so that the dimethylsulfoxide is flashed under vacuum into the deaeration kettle, flows from bottom to top, and is in reverse contact with the polymerization solution; the filler, material distributors and all the tower internals in the deaeration degassing kettle are soaked by dimethylsulfoxide vapor, so that the generation of gel is effectively prevented. In the preferred embodiment, due to the presence of filament-shaped spinning liquid above a distribution disk, the filler layer and the gas distribution tube, a very good mass transfer interface is provided, which is particularly suitable for high-load continuous production.

Description

technical field [0001] The invention belongs to the technical field of carbon fiber production, and in particular relates to a high-efficiency defoaming and concentration-enhancing device and method for a carbon fiber production and polymerization process. Background technique [0002] In the process of carbon fiber production and polymerization, the bubbles in the polymerization solution are not easy to remove, and the residual bubbles will cause broken filaments and affect the quality of carbon fibers. Therefore, the polymerization solution must be degassed and concentrated. [0003] Many enterprises use external auxiliary means to improve the defoaming efficiency of the polymerization stock solution, but the degassing operation under long-term vacuum conditions, the solvent on the surface of the polymerization solution is easy to remove and gradually gel, or produce gel, which affects the quality of the polymerization solution. For example, CN101856570B provides an ultras...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): B01D19/02B01D1/00B01D1/30
CPCB01D1/00B01D1/0082B01D1/30B01D19/02
Inventor 杨昆奚广宏周元铭刘运波赵彦国孙毅郑义城刘根房赵志刚张超
Owner ZHONG AN XIN TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap