Multistage circular blower for hollow polyphenylene sulfide short fibers

Abstract

The invention discloses a multistage circular blower for hollow polyphenylene sulfide short fibers. The multistage circular blower comprises an air conditioner, a main valve, a branch valve, a staged air inlet device and a circular blowing device, wherein one end of the air conditioner is connected with the staged air inlet device; the staged air inlet device comprises a first air intake tube, a second air intake tube, a third air intake tube, a fourth air intake tube and a fifth air intake tube in sequence from top to bottom; the circular blowing device is connected with the other end of the staged air inlet device; the main valve and the branch valve are located at the joint of the air conditioner and the staged air inlet device; the main valve is located on a connector of the air conditioner; the branch valve is located on the staged air inlet device, and is fixedly arranged at the joint of the first air intake tube 4, the second air intake tube 5, the third air intake tube 4, the fourth air intake tube and the fifth air intake tube, and the multiple air intake tubes are respectively controlled. Compared with only one fan and the one-stage speed regulation of a common circular blower, the multistage circular blower disclosed by the invention is capable of realizing five-stage speed regulation and stage-by-stage cooling.

Description

technical field [0001] The invention relates to a ring blower, in particular to a multistage ring blower for hollow polyphenylene sulfide short fibers, which belongs to the field of chemical fiber manufacturing. Background technique [0002] The main purpose of polyphenylene sulfide staple fiber is to make filter cloth, because it is a solid fiber, so the unit weight is high. On the one hand, the customer uses the high cost of use, which increases the cost of the enterprise; on the other hand, the filter cloth made is heavy and difficult to construct. In order to reduce the unit weight, the hollowing of polyphenylene sulfide has attracted more and more people's attention, and has become an important issue in the production of polyphenylene sulfide staple fibers at this stage. [0003] During the production of PPS staple fiber, the high-temperature viscous melt is extruded from the spinneret hole, cooled by blowing at a certain temperature and humidity, and then formed. In ...

AI Technical Summary

Problems solved by technology

The adjustable wind speed of the existing ring blower is only 1 level, and the molecular fluidity of polyphenylene sulfide is poor. When the hollow fiber is spun, the wind speed is too high, which will cause the molecular stress to change, and cause the yarn to be even and deformed, forming a curl effect, so It is difficult to achieve the effect of hollowing out polyphenylene sulfide

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