CN112342631A - Device for producing high-strength high-modulus polyethylene fibers by using tetrachloroethylene as second solvent through gel method - Google Patents
Device for producing high-strength high-modulus polyethylene fibers by using tetrachloroethylene as second solvent through gel method Download PDFInfo
- Publication number
- CN112342631A CN112342631A CN201910719837.4A CN201910719837A CN112342631A CN 112342631 A CN112342631 A CN 112342631A CN 201910719837 A CN201910719837 A CN 201910719837A CN 112342631 A CN112342631 A CN 112342631A
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- China
- Prior art keywords
- water
- heat exchange
- solvent
- cooling
- tetrachloroethylene
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000002904 solvent Substances 0.000 title claims abstract description 19
- 239000000835 fiber Substances 0.000 title claims abstract description 15
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 title claims abstract description 15
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 229950011008 tetrachloroethylene Drugs 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000000498 cooling water Substances 0.000 claims abstract description 23
- 235000015110 jellies Nutrition 0.000 claims abstract description 19
- 239000008274 jelly Substances 0.000 claims abstract description 19
- 238000000746 purification Methods 0.000 claims abstract description 19
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 239000003292 glue Substances 0.000 claims abstract description 15
- 238000000605 extraction Methods 0.000 claims abstract description 10
- 239000012809 cooling fluid Substances 0.000 claims abstract description 4
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 238000005260 corrosion Methods 0.000 claims description 9
- 239000004698 Polyethylene Substances 0.000 claims description 7
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
- 239000004593 Epoxy Substances 0.000 claims description 3
- 239000010426 asphalt Substances 0.000 claims description 3
- 238000005536 corrosion prevention Methods 0.000 claims description 3
- 238000005868 electrolysis reaction Methods 0.000 claims description 3
- 238000005189 flocculation Methods 0.000 claims description 3
- 230000016615 flocculation Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000005011 phenolic resin Substances 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 239000000499 gel Substances 0.000 description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 239000000126 substance Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 238000001891 gel spinning Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/06—Wet spinning methods
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The invention discloses a device for using tetrachloroethylene as a second solvent in the process of producing high-strength high-modulus polyethylene fibers by a jelly glue method, which comprises a water cooling system for cooling fluid strand wires into jelly glue strand wires by water, and an extraction tank for extracting the jelly glue strand wires; the water cooling system comprises a heat exchange device, a cooling water tank and a delivery pump, wherein the heat exchange device, the cooling water tank and the delivery pump are connected in series, and water purification equipment is additionally arranged at any position among the heat exchange device, the cooling water tank and the delivery pump. The invention can effectively remove the floccules and produce products with good quality.
Description
Technical Field
The invention relates to a device used in the process of producing high-strength high-modulus polyethylene fibers by a jelly glue method.
Background
The high-strength high-modulus polyethylene fiber is a new material developed in the last 50 th century and has excellent mechanical properties. Has obvious advantages in the aspects of sports clothing, navigation, maritime work, labor protection, military industry and the like. The gel spinning adopts white oil as a first solvent to swell and unwind polyethylene particles with high molecular weight (the molecular weight is more than 50 ten thousand), so that the polyethylene particles can be entangled with each other after extrusion, and the polyethylene particles are in a linear chain state through high-power stretching to form a high-performance product. Before stretching, the molecular chains need to be relatively fixed, namely white oil in the gel silk is removed as much as possible, and extrusion, extraction and other methods can be used for removing the white oil. The extraction method is adopted when the high-strength and high-modulus polyethylene fiber is produced by the traditional gel spinning method, and the extraction solvent, namely the second solvent, can adopt hydrocarbon solvent, toluene, gasoline and the like. The hydrocarbon solvent (a mixture of normal alkane and naphthenic alkane of C6-C8) has a flash point of less than 40 ℃, is very dangerous in the use process, is easy to generate fire risks, and similarly has the fire risks of toluene, gasoline and the like. More than one enterprise has a fire problem in the production process, and the loss is very large. In order to solve the problem, the inventor replaces the extracting agent with tetrachloroethylene, and after years of practice, the fire risk is solved. However, after the solvent is replaced, the tetrachloroethylene solvent is not sufficiently stable at high temperatures, and is easily decomposed into acidic substances at high temperatures, which cause corrosion of equipment. Corrosion occurs not only in the portion of the equipment in contact with the liquid but also in the portion not in contact with the liquid. The iron rust on the corroded equipment can pollute the PE wires, and meanwhile, the corroded equipment surface becomes rough, so that the problems of broken wires and the like are caused in production. In order to solve the problem of corrosion of a portion in contact with a liquid, the present inventors stabilized an aqueous solution system by adding a substance containing a specific group. Such as amines or ammonia, may be effective. Generally, ammonia water is selected, and the first is cheap and easy to obtain; secondly, the buffer has certain buffer capacity; thirdly, the irritation is weaker than that of the organic amines. After the system is stabilized, a small amount of system stabilizer is remained in the white oil, and the small amount of system stabilizer is subjected to high-temperature treatment in the process of producing the gel silk and reacts with the white oil to generate a new substance, the new substance is flocculent in water after being aggregated, and the flocculent is further aggregated in a cooling water system and then adhered to the gel silk. This process results in foreign matter on the gel wire that is also difficult to separate thoroughly from the gel wire. Floccules are adhered to the gel yarns, and in the stretching process, a section of the floccules is mixed with the finished product yarns, so that the problems of color difference, foreign matters and the like are caused.
Disclosure of Invention
The invention aims to provide a device for producing high-strength high-modulus polyethylene fibers by using tetrachloroethylene as a second solvent in a jelly method with good product quality.
The technical solution of the invention is as follows:
a device for using tetrachloroethylene as a second solvent in the process of producing high-strength high-modulus polyethylene fibers by a jelly glue method comprises a water cooling system for cooling fluid strands into jelly glue strands through water, and an extraction tank for extracting the jelly glue strands; the method is characterized in that: the water cooling system comprises a heat exchange device, a cooling water tank and a delivery pump, wherein the heat exchange device, the cooling water tank and the delivery pump are connected in series, and water purification equipment is additionally arranged at any position among the heat exchange device, the cooling water tank and the delivery pump.
The water purification equipment is one or the combination of three of an air floatation purification device, a flocculation purification device and an electrolysis purification device.
The water purification equipment is an air floatation device; the water in the cooling tank flows through the air floating device, the treated water flows to the heat exchange device, and then returns to the cooling water tank after the constant temperature is stable.
The heat exchange device is one or a combination of a plurality of heat exchangers, a water chilling unit and a water cooling tower and is used for exchanging heat.
The cooling water tank, the heat exchange device, and the pipeline, the pipe fitting and the valve for connecting the cooling water tank and the heat exchange device are provided with heat insulation layers.
The interior of the extraction tank is subjected to corrosion prevention by adopting an anti-corrosion coating, and the anti-corrosion coating is made of epoxy asphalt, a tetrafluoro coating, phenolic resin, a lining PE or a lining PP.
The invention can effectively remove the floccules and produce products with good quality.
Drawings
The invention is further illustrated by the following figures and examples.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
A device for using tetrachloroethylene as a second solvent in the process of producing high-strength high-modulus polyethylene fibers by a jelly glue method comprises a water cooling system for cooling fluid strands into jelly glue strands through water, and an extraction tank for extracting the jelly glue strands; the water cooling system comprises a heat exchange device, a cooling water tank and a delivery pump, wherein the heat exchange device, the cooling water tank and the delivery pump are connected in series, and a water purification device 4 is additionally arranged at any position among the heat exchange device 1, the cooling water tank 2 and the delivery pump 3.
The water purification equipment is one or the combination of three of an air floatation purification device, a flocculation purification device and an electrolysis purification device.
The water purification equipment is an air floatation device; the water in the cooling tank flows through the air floating device, the treated water flows to the heat exchange device, and then returns to the cooling water tank after the constant temperature is stable.
The heat exchange device is one or a combination of a plurality of heat exchangers, a water chilling unit and a water cooling tower and is used for exchanging heat.
The cooling water tank, the heat exchange device, and the pipeline, the pipe fitting and the valve for connecting the cooling water tank and the heat exchange device are provided with heat insulation layers.
The interior of the extraction tank is subjected to corrosion prevention by adopting an anti-corrosion coating, and the anti-corrosion coating is made of epoxy asphalt, a tetrafluoro coating, phenolic resin, a lining PE or a lining PP.
In the figure 1, an air floatation tank is additionally arranged between a cooling water tank and a conveying pump, floccules just generated in the cooling tank are removed by air floatation in the air floatation tank, the removed floccules are discharged through a sewage discharge port, and water is purified. The floccule condition is controlled, and the system is integrally stable.
Claims (6)
1. A device for using tetrachloroethylene as a second solvent in the process of producing high-strength high-modulus polyethylene fibers by a jelly glue method comprises a water cooling system for cooling fluid strands into jelly glue strands through water, and an extraction tank for extracting the jelly glue strands; the method is characterized in that: the water cooling system comprises a heat exchange device, a cooling water tank and a delivery pump, wherein the heat exchange device, the cooling water tank and the delivery pump are connected in series, and water purification equipment is additionally arranged at any position among the heat exchange device, the cooling water tank and the delivery pump.
2. The apparatus for producing high-strength high-modulus polyethylene fiber by using the jelly method according to claim 1, wherein tetrachloroethylene is used as a second solvent, and the apparatus is characterized in that: the water purification equipment is one or the combination of three of an air floatation purification device, a flocculation purification device and an electrolysis purification device.
3. The apparatus for producing high-strength high-modulus polyethylene fiber by using the jelly method according to claim 1, wherein tetrachloroethylene is used as a second solvent, and the apparatus is characterized in that: the water purification equipment is an air floatation device; the water in the cooling tank flows through the air floating device, the treated water flows to the heat exchange device, and then returns to the cooling water tank after the constant temperature is stable.
4. The apparatus for producing high-strength high-modulus polyethylene fiber by using the jelly method according to claim 1, wherein tetrachloroethylene is used as a second solvent, and the apparatus is characterized in that: the heat exchange device is one or a combination of a plurality of heat exchangers, a water chilling unit and a water cooling tower and is used for exchanging heat.
5. The apparatus for producing high-strength high-modulus polyethylene fiber by using the jelly glue method according to claim 1, 2, 3 or 4, wherein tetrachloroethylene is used as a second solvent, and the apparatus is characterized in that: the cooling water tank, the heat exchange device, and the pipeline, the pipe fitting and the valve for connecting the cooling water tank and the heat exchange device are provided with heat insulation layers.
6. The apparatus for producing high-strength high-modulus polyethylene fiber by using the jelly glue method according to claim 1, 2, 3 or 4, wherein tetrachloroethylene is used as a second solvent, and the apparatus is characterized in that: the interior of the extraction tank is subjected to corrosion prevention by adopting an anti-corrosion coating, and the anti-corrosion coating is made of epoxy asphalt, a tetrafluoro coating, phenolic resin, a lining PE or a lining PP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910719837.4A CN112342631A (en) | 2019-08-06 | 2019-08-06 | Device for producing high-strength high-modulus polyethylene fibers by using tetrachloroethylene as second solvent through gel method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910719837.4A CN112342631A (en) | 2019-08-06 | 2019-08-06 | Device for producing high-strength high-modulus polyethylene fibers by using tetrachloroethylene as second solvent through gel method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112342631A true CN112342631A (en) | 2021-02-09 |
Family
ID=74366314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910719837.4A Pending CN112342631A (en) | 2019-08-06 | 2019-08-06 | Device for producing high-strength high-modulus polyethylene fibers by using tetrachloroethylene as second solvent through gel method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112342631A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130324692A1 (en) * | 2012-05-31 | 2013-12-05 | Thomas Clark | Systems and methods for manufacturing bulked continuous filament |
| CN103866425A (en) * | 2014-03-06 | 2014-06-18 | 江苏九九久科技股份有限公司 | Solvent used by jelly spinning method in preparation of ultra-high-molecular-weight polyethylene fiber |
| CN203834073U (en) * | 2014-02-18 | 2014-09-17 | 江苏神泰科技发展有限公司 | Water seal type tetrachloroethylene extraction plant |
| CN208660489U (en) * | 2018-08-16 | 2019-03-29 | 绵竹宏阳新材料有限公司 | A kind of circulatory system of cooling water |
-
2019
- 2019-08-06 CN CN201910719837.4A patent/CN112342631A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130324692A1 (en) * | 2012-05-31 | 2013-12-05 | Thomas Clark | Systems and methods for manufacturing bulked continuous filament |
| CN203834073U (en) * | 2014-02-18 | 2014-09-17 | 江苏神泰科技发展有限公司 | Water seal type tetrachloroethylene extraction plant |
| CN103866425A (en) * | 2014-03-06 | 2014-06-18 | 江苏九九久科技股份有限公司 | Solvent used by jelly spinning method in preparation of ultra-high-molecular-weight polyethylene fiber |
| CN208660489U (en) * | 2018-08-16 | 2019-03-29 | 绵竹宏阳新材料有限公司 | A kind of circulatory system of cooling water |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230406 Address after: 226400 No.26 Xianghai Avenue, Yangkou Town, Rudong County, Nantong, Jiangsu Applicant after: Kyushu Star Technology Co.,Ltd. Address before: 226407 No.12, Huanghai 3rd road, Rudong Coastal Economic Development Zone, Nantong City, Jiangsu Province Applicant before: JIANGSU JIUJIUJIU TECHNOLOGY Co.,Ltd. |
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| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210209 |
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| RJ01 | Rejection of invention patent application after publication |