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Cleaning method of cationic partially oriented yarn (POY) spinning box

A technology of spinning box and cation, which is applied in the direction of textiles and papermaking, spinneret assemblies, and complete sets of equipment for the production of artificial threads. It can solve the problems of poor cleaning effect and low work efficiency, and is beneficial to production and work. High efficiency and good cleaning effect

Inactive Publication Date: 2012-07-25
桐昆集团浙江恒盛化纤有限公司
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The existing cleaning method for the cationic POY spinning box uses a steel wire rope to clean the inlet and outlet of the box melt pipeline. The cleaning effect is poor and the work efficiency is low. Therefore, it is necessary to develop a cleaning method with good cleaning effect and high work efficiency. method

Method used

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Embodiment 1

[0018] The cleaning method of the cationic POY spinning box described in this embodiment adopts a container with a heating function as an intermediate tank, adopts triethylene glycol as a cleaning medium, and adopts a centrifugal pump as a transmission power source, and proceeds according to the following steps:

[0019] A. After the melt pipeline is frozen, remove the metering pump, remove the components and component bases, and empty the residual melt in the tank;

[0020] B. Arrange the pipeline, connect the spinning box, the tundish and the centrifugal pump into a circulation pipeline, and arrange a bypass for the self-circulation of the tundish at the same time, and set a switching valve between the circulation pipeline and the bypass;

[0021] C. Inject triethylene glycol into the intermediate tank, start the heating function to raise the temperature of triethylene glycol to 120°C, and then circulate the triethylene glycol in the bypass until the temperature of triethylen...

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Abstract

A cleaning method of cationic partially oriented yarn (POY) spinning box adopts container with heating function as intermediate tank, triethylene glycol as cleaning medium and centrifugal pump as transport power source. The method comprises filling triethylene glycol into the intermediate tank, starting heating function to heat triethylene glycol to 120 DEG C, self-circulating triethylene glycol in bypass until reaching 270 DEG C, and controlling activation of switching valve to circulate triethylene glycol in circulation pipeline. Triethylene glycol enters the spinning box from its outlet, and leaves the spinning box from its inlet. The inventive cleaning method utilizes high-temperature centrifugal pump to circulate high-temperature triethylene glycol (270 DEG C) between the intermediate tank and spinning box, effectively dissolves pipe wall coke of spinning box to allow coke to flow out together with triethylene glycol, thereby effectively removing box interior coke, and achieving better cleaning effect and higher working efficiency.

Description

technical field [0001] The invention relates to a method for cleaning a spinning box, in particular to a cleaning method for a cationic POY spinning box. Background technique [0002] At present, the direct spinning of POY melt in domestic chemical fiber enterprises mainly produces bright and semi-dull conventional varieties. At present, some direct spinning enterprises that can produce differentiated cationic POY have also emerged. Compared with conventional varieties, the third monomer is added in the cationic production process, and there are more coagulation and gel impurities. The melt filter cycle (filtration accuracy 25U) is generally about 10 days, and the conventional varieties are about 3 months. The cycle of spinning components is also significantly shortened. For example, the cationic cycle of 300D / 96F is about 10 days, and that of conventional varieties is about 75 days. Compared with conventional varieties, cationic melts have poor fluidity, low melting point,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D4/04D01D13/02
Inventor 朱伟锴张德强胡卫东冯新祥张刚强
Owner 桐昆集团浙江恒盛化纤有限公司
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