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Water washing machine for precipitation fiber of meta-aramid

A technology of aramid fiber precipitation and water washing machine, which is applied to the processing of textile material containers and the configuration of textile material processing equipment, and can solve the problems of dangerous operation, large noise, and large vibration

Active Publication Date: 2016-11-09
SHANGHAI HUIBO NEW MATERIAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Regardless of the composition, it is necessary to separate polym-phenylene isophthalamide from other components; usually soak and wash with water first, and then use a high-speed rotating centrifuge to dehydrate and separate the precipitated fibers. Noise, vibration, and dangerous operation

Method used

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  • Water washing machine for precipitation fiber of meta-aramid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The meta-aramid precipitated fiber stock solution (including: polym-phenylene isophthalamide, calcium chloride, N-N dimethylacetamide and water) is added to the filter bag 3 of the precipitated fiber washing machine, and the stock solution is added to the total The amount is 80% of the capacity of the precipitated fiber washing machine; start the drainage pump 5 of the precipitated fiber washing machine to extract the liquid in the precipitated fiber solution, and continue to deliquify for 8 minutes after the visible liquid is exhausted; Add washing liquid (washing liquid is pure water) to the precipitated fiber washing machine after the first step of removing liquid, and the weight of the added washing liquid is equivalent to 15 times that of the precipitated fiber when it is dry; the intake pipe 4 of the precipitated fiber washing machine continuously blows 0.2 Compressed air at MPa pressure for 20 minutes makes the precipitated fibers toss up and down in the washing l...

Embodiment 2

[0020] The meta-aramid precipitated fiber stock solution (including: polym-phenylene isophthalamide, hydrogen chloride, N-N dimethylacetamide and water) is added to the filter bag 3 of the precipitated fiber washing machine, and the total amount of stock solution added is 30% of the capacity of the sedimentation fiber washing machine; start the drainage pump 5 of the sedimentation fiber washing machine to extract the liquid in the sedimentation fiber solution, and continue to remove the liquid for 1 minute after the visible liquid is exhausted; Add washing liquid (washing liquid is pure water) to the precipitated fiber washing machine after liquid, and the weight of washing liquid is equivalent to twice that of the precipitated fiber in dry state; The compressed air is used for 5 minutes, so that the precipitated fiber is tossed up and down in the washing liquid, and the surface of the washing liquid is continuously bubbled; the compressed air is stopped, and after the bubbles ...

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Abstract

The invention relates to a water washing machine for a precipitation fiber of meta-aramid, and belongs to the field of the production of high molecular materials. The water washing machine for the precipitation fiber of the meta-aramid comprises a barrel (1), wherein a reticular plate (2) provided with a plurality of small holes is fixedly arranged at the lower end of the inner side of the barrel (1); a filtering bag (3) clings to the inner side of the barrel (1) and the upper side of the reticular plate (2); a gas inlet pipe (4) is arranged in a space defined by the reticular plate (2) and a lower end enclosure of the barrel (1). The gas inlet pipe can be convenient for the blowing in of gas; the washing uniformity can be improved; the washing speed can be quickened; a washing solution can be saved; when the precipitation fiber is washed by adopting the water washing machine for the precipitation fiber of the meta-aramid, the adoption of high-speed rotating devices such as a centrifuge can be avoided; the water washing machine for the precipitation fiber of the meta-aramid is convenient to operate, safe, stable, and applicable to industrialized production; the prepared precipitation fiber of the meta-aramid is low in ash content and high in purity.

Description

technical field [0001] It belongs to the field of polymer material production, and relates to precipitation fiber washing equipment. To be precise, it relates to a washing machine suitable for industrial production of meta-aramid precipitated fibers. Background technique [0002] The scientific name of meta-aramid is poly-m-phenylene isophthalamide, also known as aramid 1313 in China. Meta-aramid is one of the fastest-growing varieties of high-performance fibers today, and it is a kind of fiber with excellent comprehensive performance. High-tech fibers are widely used in protective clothing, honeycomb structure materials, electrical insulating paper and high-temperature filter materials, and are important basic materials in the fields of aerospace, electronics, communications, environmental protection, petrochemicals, marine development and special clothing . [0003] Meta-aramid fibrid is an important raw material for the manufacture of honeycomb paper and insulating pape...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06B23/14D06B23/20
CPCD06B23/14D06B23/20
Inventor 刘岳新罗丹龚勇明罗建业胡艳君
Owner SHANGHAI HUIBO NEW MATERIAL SCI & TECH