Sizing, drying and shaping device for polyacrylonitrile-based carbon fiber

Abstract

The invention belongs to a generation device for a polyacrylonitrile-based carbon fiber and particularly relates to a sizing, drying and shaping device for the polyacrylonitrile-based carbon fiber. The sizing, drying and shaping device comprises a sizing device for sizing a carbon fiber, a drying device for the sized carbon fiber as well as a shaping device for shaping the dried carbon fiber, wherein the sizing device comprises a sizing groove for accommodating slurry; a circulating pipeline is arranged on the outer side of the sizing groove; one end of the circulating pipeline is connected with the bottom of the sizing groove; the other end of the circulating pipeline is connected with the upper edge of the sizing groove; a circulating pump is arranged on the circulating pipeline; a guiding roller which is partially immersed in the slurry and an immersing roller which is completely immersed in the slurry are arranged in the sizing groove; a reflowing plate which is arranged in an extending manner is arranged on the outlet edge of the sizing groove; and an air purge device is fixedly arranged above the reflowing plate. According to the sizing, drying and shaping device disclosed by the invention, the sizing is uniform, the shape of tows is good; the pollution of air to the carbon fiber is reduced in the sizing and drying; and meanwhile, the work environment is improved and the work comfortableness of workers is improved.

Description

technical field [0001] The invention belongs to a polyacrylonitrile carbon fiber production device, in particular to a polyacrylonitrile carbon fiber sizing, drying and shaping device. Background technique [0002] Polyacrylonitrile carbon fibers have excellent mechanical properties and are widely used in aviation, sports and leisure products, military and civilian high-tech fields, and are increasingly used in emerging industries such as high-speed trains, wind turbine blades, and cable support cores. Widely used, it has become an important material guarantee and technical driving force for the development of Yuhang aircraft in the direction of light weight, high performance and high reliability. It is a high-tech new material for both military and civilian purposes. [0003] The preparation process of polypropylene carbon fiber includes the processes of raw material polymerization, spinning, pre-oxidation, carbonization, surface treatment, sizing and drying. Sizing and dr...

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Problems solved by technology

[0005] In addition, the currently commonly used carbon fiber sizing and drying equipment in China is relatively backward, with high energy consumption and serious pollution. The airflow at the inlet of the drying furnace cannot be reasonably controlled. Exhausted from the furnace mouth, affecting the production environment

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