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Melt delivery pipeline system for melt direct-spinning process

A technology of conveying pipeline and melt direct spinning, which is applied in the direction of feeding solution to spinneret, etc., can solve problems such as melt temperature fluctuation, and achieve the effects of improving yield, increasing economic benefits and improving stability.

Active Publication Date: 2012-09-19
JIANGSU CHALLEN FIBER S&T
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  • Summary
  • Abstract
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Problems solved by technology

[0012] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a melt conveying pipeline system for the melt direct spinning process, by selectively installing heat medium partitions on the entire heat medium jacketed pipe system, to solve the problem of discharge Detrimental effects of large-scale melt temperature fluctuations caused by non-condensable gas

Method used

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  • Melt delivery pipeline system for melt direct-spinning process
  • Melt delivery pipeline system for melt direct-spinning process
  • Melt delivery pipeline system for melt direct-spinning process

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Embodiment

[0030] The present invention can be applied to 24 filament production lines. The melt from the polyester final polymerization tank is sent to the melt distribution three-way valve of the filament device after passing through the melt cooler and the melt filter, and is divided into two branch pipes. Each branch pipe is divided into three branch pipes by distributing the four-way valve, and each branch pipe is further divided into two branch pipes through the distribution three-way valve, and each branch pipe is finally distributed to two spinning boxes through the three-way valve, so that , The melt from the polyester final polymerization tank is finally evenly distributed to 24 spinning boxes for spinning operations.

[0031] A heat medium jacket is installed outside the entire PET melt pipe, and the balanced flow of heat medium inside is used to ensure the stability of the melt temperature. The horizontal height of the liquid-phase heat medium collection tank is 5-6m, and the...

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Abstract

A melt delivery pipeline system for the melt direct-spinning process comprises a melt pipeline and a heating medium clamp sleeve. A heating medium partition is arranged in the heating medium clamp sleeve fixedly. The melt delivery pipeline system has the advantages that by arranging the heating medium partition in the heating medium clamp sleeve, mutual affection of heating media in different areas and temperature instability of the heating media are avoided, adverse effect on spinning and forming quality due to overhigh temperature or too low temperature of melts is reduced or eliminated, controllability of temperature of spinning melts is realized, stability of product quality is guaranteed and yield of finished products is improved.

Description

technical field [0001] The invention relates to the field of melt conveying, in particular to a melt conveying pipeline system for a melt direct spinning process. Background technique [0002] In the production of melt direct spinning, melt conveying is a key link. The quality of melt conveying has a great influence on the quality of spinning and forming. If the melt temperature is too high, polyester will be degraded and bubbles will be formed. If it is low, it will lead to high melt viscosity and a series of problems such as spinning breakage. There are two main factors that cause the temperature change of the melt during the melt delivery process: [0003] 1. The heat energy converted from the mechanical energy required by the melt to overcome the flow resistance. [0004] 2. Heat exchange between the melt and the heat medium in the jacket of the conveying pipe. [0005] The heat medium jacketed pipe is a special pipe set up to maintain the fluidity and temperature of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D1/09
Inventor 兰寿梅
Owner JIANGSU CHALLEN FIBER S&T
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