Environment-friendly and energy-saving multi-stage combination type high-performance fiber hyperploid heat drawing device

Abstract

The invention relates to an environment-friendly and energy-saving multi-stage combination type high-performance fiber hyperploid heat drawing device, which is characterized in that pre-drawing drying ovens and a plurality of drawing heat drying ovens are independently arranged in a closed heat preservation box; the upper parts of all the pre-drawing drying ovens and the drawing heat drying ovens which are arranged independently are all provided wit air exhaust devices; a pre-drawing machine is arranged in each pre-drawing drying oven; and a drawing machine is arranged in each drawing heat drying oven. The invention has the advantages of environmental protection, energy saving and high drawing efficiency and can reduce pernicious and hazardous gas emission by 95%, save the energy by 50%-75%, and improve the yield by 150%-300%; in addition, the fiber property intensity of the same primary raw silk can be improved greatly by the drawing means. The invention also has the advantages of low drawing multiple per stage, rare yarn break, less waste, low equipment manufacture cost, reliable performance as well as convenient maintenance and use.

Description

technical field [0001] The invention relates to a post-stretching device for synthetic fibers, in particular to an environmentally friendly and energy-saving multi-stage combined high-performance fiber super-heating drafting device. technical background: [0002] For flexible chain polymers such as high-modulus high-strength polyethylene, fibers cannot be produced by melt spinning due to their extremely high viscosity. The mature process now is to use the gel spinning process. However, the nascent filaments formed by gel spinning can only become high-strength fibers after superheated drawing. In the process of ultra-heated drawing, in addition to the orientation of macromolecules to promote stress crystallization, the original folded chain crystals can be disintegrated and transformed into straight chain crystals, so that the fibers have amorphous regions uniformly dispersed in continuous stretching. Chain structure in a crystallized matrix. [0003] Generally, the total ...

AI Technical Summary

Problems solved by technology

[0007] 1. The hot air box with separate levels and large length occupies a large area, high energy consumption, high manufacturing cost, and more importantly, it is difficult to thread thread, and the thread sags seriously during the drawing process, and it is easy to break due to excessive tension , a large waste

[0008] 2. Because the drafting rollers are placed outside the oven, if the drafting rollers do not use hot rollers, the drafting quality will be seriously affected. If a large number of hot rollers are used, the cost of manufacturing, maintenance and use will be greatly increased, and the resulting drops Leakage will also affect clean production

[0009] 3. The structure is too long and scattered, it is not easy to seal the whole process, and it is easy to cause some solvents to volatilize freely during the production process, causing serious environmental pollution. More importantly, most of the solvents are flammable and explosive chemicals, which are very easy to cause explosion and Fire is very detrimental to safe production

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