Washing device for producing carbon fiber precursors

Abstract

The invention provides a washing device for producing carbon fiber precursors. The washing device comprises a water tank. Multiple nozzles are arranged on a tank body of the water tank. Water inlets of the nozzles are communicated with the water tank. The nozzles are in a U-shaped groove type or planar supporting plate type, and water outlets of the nozzles are formed in the bottom faces in U-shaped grooves respectively and opposite to washing channels of a beam of silk of the carbon fiber precursors. The multiple water outlets are formed in the bottom faces in the U-shaped grooves or planar supporting plates. The effect of the device for washing a solvent in the carbon fiber precursors is good, the quality of carbon fiber products can be improved, and water can be saved.

Description

technical field [0001] The invention relates to a water washing device for producing carbon fiber precursors. Background technique [0002] my country's carbon fiber research began in the 1970s, and it was not until 2010 that there was great progress and improvement. Good carbon fiber must be guaranteed by high-quality carbon fiber precursor (raw material of carbon fiber). There are many key technologies in the production of carbon fiber precursor, among which the residual amount of solvent in the tow (commonly used solvents include DMAC, DMF, DMSO, NaSCN) is one A very important indicator, if the tow has a high solvent content, the tow will be burnt during high-temperature carbonization, resulting in hairy filaments, which will seriously affect the quality of carbon fibers. [0003] The existing carbon fiber raw silk washing and oiling technologies include immersion, rinsing and serpentine washing. Soaking type: Basically, the tow is passed directly in the hot water tank,...

AI Technical Summary

Problems solved by technology

These methods are poor in removing residual solvents in the raw silk and consume a lot of water and are inefficient

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