Carbon fiber precursor drying device

The utility model discloses a carbon fiber precursor drying device which comprises a drying box, a plurality of drying hot rollers used for drying tows are arranged in the drying box, a tow inlet and a tow outlet are further formed in the drying box, and a heating tow channel used for drying the tows is arranged between every two adjacent drying hot rollers. According to the utility model, the heating filament channel is additionally arranged between the drying hot rollers, and the temperature of the filament channel is kept consistent with the temperature of the drying hot rollers, so that the temperature of the filament bundle is uniform when the filament bundle arrives at the next drying hot roller from the rollers, and the temperature of the filament bundle reaches the next drying hot roller in a certain tension drafting and high-speed spinning process. Therefore, the problem of broken filaments or wool balls caused by filament breakage is avoided, and the quality of raw filaments is improved. 本实用新型公开了一种碳