Densification drying device for polyacrylonitrile filaments

Abstract

The invention discloses a densification drying device for polyacrylonitrile filaments. The densification drying device comprises a feeding roller, a heat box, a heat roller, a sliver divider and a bobbin. Slivers which need to be processed sequentially pass through the feeding roller, the heat box, the heat roller and the sliver divider and then are wound around the bobbin; a pressing roller is mounted on the feeding roller, and the slivers pass through the gap between the feeding roller and the pressing roller; two heat pipes are mounted in the heat box, a sliver guider is mounted on the topof the heat box, and the slivers sequentially pass through the heat pipe on the left side, the sliver guider and the heat pipe on the right side; the heat box is connected with a biphenyl stove, an input pipe and a recovery pipe are connected between the biphenyl stove and the heat box, and an electric heating rod is mounted in the biphenyl stove. The heat roller consists of a fixing base, a second motor, an iron core and a sliver guide roller. In this way, the densification drying device for polyacrylonitrile filaments can meet the technical demands of slivers different in strand density.

Description

technical field [0001] The invention relates to the field of production of polyacrylonitrile filaments, in particular to a densification and drying device for polyacrylonitrile filaments. Background technique [0002] In the production process of synthetic fibers, most of the production processes that adopt wet spinning process need to dry the filaments to evaporate the water and solvent in the filaments. The most common method is to heat the filaments by heating rollers. Heating and drying generally adopts a structure of horizontal placement and multiple heat rollers side by side. The entire production line is arranged for a long time and occupies a relatively large area. Especially in the production practice of polyacrylonitrile filaments, due to the relatively large heat shrinkage of polyacrylonitrile filaments Large, the lattice arrangement is disordered, and the method of heating with a hot roller cannot meet the process requirements. Contents of the invention [000...

AI Technical Summary

Problems solved by technology

[0002] In the production process of synthetic fibers, most of the production processes that adopt wet spinning process need to dry the filaments to evaporate the water and solvent in the filaments. The most common method is to heat the filaments by heating rollers. Heating and drying generally adopts a structure of horizontal placement and multiple heat rollers side by side. The entire production line is arranged for a long time and occupies a relatively large area. Especially in the production practice of polyacrylonitrile filaments, due to the relatively large heat shrinkage of polyacrylonitrile filaments Large, lattice arrangement is disordered, and the way of heating with hot rollers cannot meet the process requirements

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