Device and method for cleaning pipelines for cationic polyester melts

A cationic polyester, melt pipeline technology, applied in the directions of cleaning methods and utensils, chemical instruments and methods, cleaning hollow objects, etc., to achieve the effect of convenient supply and mature application technology

Inactive Publication Date: 2014-03-26
浙江东华纤维制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a cationic polyester melt pipeline cleaning device and its cleaning method, which solves the cleaning problem of the cationic polyester melt pipeline, and converts all the polyester melt remaining in the pipeline into the original The monomer will not corrode the equipment, and has the characteristics of energy saving and environmental protection

Method used

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  • Device and method for cleaning pipelines for cationic polyester melts

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Such as figure 1 As shown, a cationic polyester melt pipe cleaning device of the present embodiment includes a melt discharge pump 2 installed on the polyester melt discharge pipeline 1 of the cationic polyester melt production device; The polyester melt discharge pipeline 1 is connected with the melt four-way valve 3; the melt discharge pump 2 is connected with the first pipeline 4; the first pipeline 4 is connected with the electric heater 5; The electric heater 5 is connected to the utility steam system through the second pipeline 6; a steam valve 13 is installed on the first pipeline 4; A nitrogen pipeline 14 is installed on the first pipeline 4; a nitrogen valve 15 is installed on the nitrogen pipeline 14; the nitrogen pipeline 14 is connected with the nitrogen gas supply system; the melt discharge pump A third pipeline 7 is installed on the polyester melt discharge pipeline 1 between 2 and the melt four-way valve 3; the third pipeline 7 is connected to the cleani...

Embodiment 2

[0020] Such as figure 1 As shown, a cationic polyester melt pipe cleaning device of the present embodiment includes a melt discharge pump 2 installed on the polyester melt discharge pipeline 1 of the cationic polyester melt production device; The polyester melt discharge pipeline 1 is connected with the melt four-way valve 3; the melt discharge pump 2 is connected with the first pipeline 4; the first pipeline 4 is connected with the electric heater 5; The electric heater 5 is connected to the utility steam system through the second pipeline 6; a steam valve 13 is installed on the first pipeline 4; A nitrogen pipeline 14 is installed on the first pipeline 4; a nitrogen valve 15 is installed on the nitrogen pipeline 14; the nitrogen pipeline 14 is connected with the nitrogen gas supply system; the melt discharge pump A third pipeline 7 is installed on the polyester melt discharge pipeline 1 between 2 and the melt four-way valve 3; the third pipeline 7 is connected to the cleani...

Embodiment 3

[0024] Such as figure 1As shown, a cationic polyester melt pipe cleaning device of the present embodiment includes a melt discharge pump 2 installed on the polyester melt discharge pipeline 1 of the cationic polyester melt production device; The polyester melt discharge pipeline 1 is connected with the melt four-way valve 3; the melt discharge pump 2 is connected with the first pipeline 4; the first pipeline 4 is connected with the electric heater 5; The electric heater 5 is connected to the utility steam system through the second pipeline 6; a steam valve 13 is installed on the first pipeline 4; A nitrogen pipeline 14 is installed on the first pipeline 4; a nitrogen valve 15 is installed on the nitrogen pipeline 14; the nitrogen pipeline 14 is connected with the nitrogen gas supply system; the melt discharge pump A third pipeline 7 is installed on the polyester melt discharge pipeline 1 between 2 and the melt four-way valve 3; the third pipeline 7 is connected to the cleanin...

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Abstract

The invention discloses a device and a method for cleaning pipelines for cationic polyester melts. The device comprises a melt discharge pump; the melt discharge pump is mounted on a polyester melt discharge pipeline of a cationic polyester melt manufacturing device; the polyester melt discharge pipeline is connected with a melt four-way valve; the melt discharge pump is connected with a first pipeline; the first pipeline is connected with an electric heater; the electric heater is connected with a public engineering steam system by a second pipeline; a steam valve is mounted on the first pipeline; a nitrogen pipeline is mounted on the first pipeline between the steam valve and the melt discharge pump; a third pipeline is mounted on the polyester melt discharge pipeline between the melt discharge pump and the melt four-way valve; the third pipeline is connected with a cleaning collecting vehicle by a metal hose; a melt blow-off valve is mounted on the third pipeline; the cleaning collecting vehicle is connected with a cleaning waste liquid receiving device by a fourth pipeline. The device and the method have the advantages that the pipelines for the cationic polyester melts can be cleaned by the aid of the device and the method, equipment can be prevented from being corroded, energy can be saved, and environments can be protected.

Description

technical field [0001] The invention relates to a cationic polyester melt pipeline cleaning device and a cleaning method thereof. Background technique [0002] Polyester fiber is currently the most widely used synthetic fiber in the world. Its manufacturing process is a chemical reaction, through the esterification reaction of purified terephthalic acid and ethylene glycol, and further polycondensation reaction to generate a polymer thermoplastic material with a molecular weight of about 20,000. , and then thermally stretched to produce fibers with a certain strength. China is a big polyester fiber manufacturer. At present, the annual output of polyester fiber is 50 million tons. There are many polyester melt direct spinning production devices in China. The market provides a large amount of high-quality synthetic fibers. At the same time, the maintenance of these production devices has become an important guarantee for the production of high-quality products. Generally, poly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B9/032C08J11/14C08L67/00
CPCB08B9/0328Y02P20/10Y02W30/62
Inventor 孟继承沈国锋郭太兴赵海锋李松俞亮
Owner 浙江东华纤维制造有限公司
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