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Dryer system for high-strength high-modulus superhigh molecular weight polyethylene fibers

An ultra-high molecular weight, polyethylene fiber technology, applied in the field of dryer systems for high-strength and high-modulus ultra-high molecular weight polyethylene fibers, can solve the problems of wasting energy, affecting the post-stretching properties of fibers, and unable to reuse hot air, and improving the stretching Status, system pressure is easy, and the effect of maintaining stable production

Active Publication Date: 2010-09-01
SHANDONG ICD HIGH PERFORMANCE FIBRES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing dryer is composed of a blower, a heater, a drying box and an induced draft fan. The working method is that the blower inhales fresh air and heats it to a predetermined temperature (30-100°C), then enters the drying box, transfers heat to the filaments and takes them away. The hot liquid is then sucked and discharged to the outside by the induced draft fan. The disadvantage is that the hot air cannot be reused and energy is wasted
In addition, there is no process treatment for the wet filaments before they enter the dryer, resulting in the sudden increase of tension caused by the rapid volatilization of a large amount of liquid at the entrance of the dryer, resulting in a large number of fluff, which affects the post-stretch performance of the fibers

Method used

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  • Dryer system for high-strength high-modulus superhigh molecular weight polyethylene fibers

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A dryer system for high-strength and high-modulus ultra-high molecular weight polyethylene fibers of the present invention, its structural schematic diagram can be seen figure 1 , comprising a mixer, a heater, a dryer, an induced draft fan and a blower, the mixer, a heater, a dryer and an induced draft fan are connected in sequence and form a circuit, and the blower is respectively connected with the induced draft fan and the induced draft fan through a valve The mixer is connected. Air discharge into the blower is 10-30%.

[0018] The active rollers in the dryer are fixed on both sides. After the air is mixed by the mixer, it enters the heater to be heated again, and then it is reintroduced into the dryer by the induced phoenix fan for recycling. The wet filaments are pre-dried, and the remaining hot air is mixed with fresh dry air and reheated by the heater, and the above-mentioned route is circulated.

Embodiment 2

[0020] Under the same output and the same weather conditions, a comparison test was carried out for direct discharge of all hot air and 10% of hot air. The comparison results are shown in Table 1:

[0021] Table 1

[0022] category

[0023] From the above table, it can be obtained that after most of the return air is recycled, the liquid content of the yarn output from the dryer is significantly reduced, and the energy saving effect is remarkable.

Embodiment 3

[0025] Under the same output, the same draw ratio, and the same draw speed, a comparison test was carried out for direct discharge of all hot air and 10% of hot air. The comparison results are shown in Table 1:

[0026] Table 2

[0027] category

[0028] It can be obtained from the above table: when all the hot air is discharged in a straight line, the yarn at the inlet of the dryer contains a large amount of liquid, and the volatilization of the liquid will cause the yarn to shrink, generate tension, and easily produce fuzz.

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Abstract

The invention discloses a dryer system for high-strength high-modulus superhigh molecular weight polyethylene fibers, which comprises a mixer, a heater, a dryer, an induced fan and an air blower, wherein the mixer, the heater, the dryer and the induced fan are sequentially connected and form a circuit; the air blower is respectively connected with the induced fan and the mixer through valves; thevent capacity of air entering the air blower is 10 to 30 percent; and a drive roll in the dryer is fixed by two sides. The dryer system circularly uses hot air, pre-dries wet filaments and fulfils the aims of saving energy and improving the tensile property of the filaments; meanwhile, the bending moment of the filament to a driven roll of a drying oven is reduced, which is favorable for protecting equipment and maintaining stable production; and the system pressure is easily adjusted to be balanced and stable.

Description

technical field [0001] The invention relates to a dryer, in particular to a dryer system for high-strength and high-modulus ultra-high molecular weight polyethylene fibers. Background technique [0002] The existing dryer is composed of a blower, a heater, a drying box and an induced draft fan. The working method is that the blower inhales fresh air and heats it to a predetermined temperature (30-100°C), then enters the drying box, transfers heat to the filaments and takes them away. The hot liquid is then sucked and discharged to the outside by the induced draft fan. The disadvantage is that the hot air cannot be reused and energy is wasted. And the wet silk sliver does not have any process measures before entering the dryer, resulting in the sudden increase of tension caused by the rapid volatilization of a large amount of liquid at the entrance of the dryer, resulting in a large number of fluff, which affects the post-stretch performance of the fiber. Contents of the in...

Claims

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Application Information

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IPC IPC(8): D01D10/06D01D13/02D01F6/04
Inventor 李夑平
Owner SHANDONG ICD HIGH PERFORMANCE FIBRES CO LTD
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