A kind of polyester fiber spinning system

Abstract

The invention belongs to the technical field of spinning, and particularly relates to a polyester fiber spinning system. The system comprises a feeding module, an air pressure rod, a spinning module,a heat supply module, a waste heat circulation module and a solvent recycling device; the air pressure rod is used for being matched with the feeding module for work; the heat supply module is used for conveying solvent steam into the spinning module; the waste heat circulation module is arranged at the bottom of the spinning module, and the waste heat circulating unit is used for cooling fiber yarn; the solvent recycling device is used for recycling solvents in the spinning module and conveying the solvents into a heating device; a gas supply box is used for conveying inert gas to the feedingmodule; the gas supply box is fixedly arranged on the upper surface of the heating device through an installation frame. The system is mainly used for producing polyurethane fibers, spinning stock solutions can be uniformly mixed and filtered, meanwhile, the solvent steam can be subjected to heat recycling, and the energy consumption is reduced.

Description

technical field [0001] The invention belongs to the technical field of dry spinning equipment, in particular to a polyester fiber spinning system. Background technique [0002] Polyurethane is mainly formed by the polyaddition reaction of diisocyanate or polyisocyanate with dihydroxy or polyhydroxy compounds. It has excellent properties such as high elasticity, wear resistance, low temperature resistance, solvent resistance and aging resistance, so it is widely used in various fields of national economy. Due to the good solubility of polyurethane materials in N,N-dimethylformamide, N,N-dimethylacetamide and dimethyl sulfoxide, polyurethane fibers can be prepared by wet spinning, which is widely used. Wide range of applications in leather, sofas, shoes and hats, automotive interiors, decorations, tracks and other fields. In the polyurethane fiber dry spinning process, whether the spinning stock solution is uniform or not determines the quality of spinning; at the same time,...

AI Technical Summary

Problems solved by technology

Although this technical solution can realize solvent recovery and heat recycling, this technical solution cannot cool down the silk thread at the lower end when the heat is recycled; at the same time, this technical solution cannot homogenize the spinning solution, nor can it reduce the temperature of the solvent. The steam spreads evenly, making the use of this invention limited

Images