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A cleaning method for aramid 1414 spinneret

A technology of spinneret and aramid fiber, which is applied in the direction of spinneret assemblies, textiles and papermaking, etc. It can solve the problems of poor quality and low efficiency, achieve strong adhesion, high strength, and solve the effect of low cleaning efficiency

Active Publication Date: 2021-04-27
BLUESTAR CHENGDU NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this technical solution, based on the setting of the stirring device and the cleaning device, firstly, the spinneret is soaked in the stirring device for pretreatment; secondly, the temperature is raised and purged in the cleaning device, that is, the high temperature melts the spinneret pulp to spin The pulp in the hole is purged with compressed air (low pressure), which effectively improves the cleaning efficiency of the spinneret and avoids secondary cleaning; finally, it is ultrasonically washed in an ultrasonic cleaner, thereby solving the problem of the cleaning efficiency of the spinneret in the prior art. Low, poor quality and other issues

Method used

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  • A cleaning method for aramid 1414 spinneret
  • A cleaning method for aramid 1414 spinneret
  • A cleaning method for aramid 1414 spinneret

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] 1. a cleaning method for aramid fiber 1414 spinneret, is characterized in that, comprises the steps:

[0046] 1) Collection: Use a torque wrench to disassemble the spinneret assembly from the pump base of the metering pump, and remove the spinneret to be cleaned;

[0047] 2) Soaking: Put the spinneret to be cleaned into the stirring device to stir and soak;

[0048] 3) Heating up and purging: put the spinneret treated in step 2) in the cleaning device, pass hot air through the hot air pipe, and keep warm in the cleaning device; then pass compressed air through the compressed air pipe to spray Wire plate purging;

[0049] 4) Ultrasonic washing: place the spinneret treated in step 3) in an ultrasonic cleaner, and after passing the test, the cleaned spinneret is obtained.

[0050] Among them, soaking and stirring the spinneret makes it easy to clean the slurry; heating and purging, using a cleaning device, heating and purging the spinneret, and efficiently removing the s...

Embodiment 2

[0052] On the basis of embodiment 1, root further,

[0053] In step 2), the stirring refers to stirring for 30 min at a temperature of 40° C. and a rotational speed of 30 r / s.

[0054] In step 3), the temperature of the hot air is 100° C., the holding time is 350 minutes; the pressure of the compressed air is 0.4 Mpa, and the purging time is 4 minutes.

[0055] In step 4), the ultrasonic frequency is 28KHz, and the cleaning time is 30min.

Embodiment 3

[0057] On the basis of embodiment 2, the difference of this embodiment is that

[0058] In step 2), the stirring refers to stirring for 20 min at a temperature of 50° C. and a rotational speed of 40 r / s.

[0059] In step 3), the temperature of the hot air is 180°C, the holding time is 20 minutes; the pressure of the compressed air is 0.8Mpa, and the purging time is 2 minutes.

[0060] In step 4), the ultrasonic frequency is 40KHz, and the cleaning time is 20min.

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Abstract

The invention discloses a method for cleaning an aramid fiber 1414 spinneret, and belongs to the technical field of man-made fiber production. Based on the settings of the stirring device and the cleaning device, the aramid fiber 1414 slurry in the spinning hole of the spinneret is cleaned, which specifically includes the steps of collecting the spinneret, soaking in the stirring device, heating and purging in the cleaning device, and ultrasonic rinsing; , increase the ambient temperature in the cleaning device to ensure that the cooling slurry block in the spinning hole of the spinneret melts; then enter the compressed air (low pressure) into the box, and the melted waste slurry flows out from the spinning hole, and then collects the waste slurry; In this process, high temperature is used to melt the slurry block, so as to improve the cleaning efficiency of the spinneret and avoid secondary cleaning. It can effectively avoid using a high-pressure water pump to impact the spinneret, causing damage to the spinneret; and further solve the problems of low cleaning efficiency and poor quality of the spinning plate in the cleaning process of the spinning plate in the prior art.

Description

technical field [0001] The invention relates to a cleaning method for a spinneret, in particular to a cleaning method for an aramid 1414 spinneret, and belongs to the technical field of man-made fiber production. Background technique [0002] Poly-p-phenylene terephthalamide fiber (referred to as "aramid 1414 fiber") is a high-quality fiber synthesized by the U.S. DuPont Company using the liquid crystal behavior of PPTA / H2SO4 solution, dry spray wet spinning method, and low temperature solution polycondensation reaction. Performance poly-p-phenylene terephthalamide fiber. Because of its high heat resistance, high tensile strength, high insulation, chemical corrosion resistance, high compressibility and high bending strength, and stable thermal shrinkage and creep properties, it is used as a special fiber and composite material. It can be used in aerospace, aviation, transportation, communication and other fields, specifically for bulletproof finished products, civil enginee...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D4/04
CPCD01D4/04
Inventor 崔晓静孙潜殷小吉黄昱毛亚丽
Owner BLUESTAR CHENGDU NEW MATERIALS
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