CN1590602A - Dry spinning hot air circulation device - Google Patents
Dry spinning hot air circulation device Download PDFInfo
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- CN1590602A CN1590602A CNA031562981A CN03156298A CN1590602A CN 1590602 A CN1590602 A CN 1590602A CN A031562981 A CNA031562981 A CN A031562981A CN 03156298 A CN03156298 A CN 03156298A CN 1590602 A CN1590602 A CN 1590602A
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- path
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- blowing device
- lateral blowing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
A hot air circulating system for sufficiently evaporating solvent and recovering it in dry spinning procedure is composed of a channel, a solvent recovering unit, a heat exchanger between the exit of solvent recovering unit and gas inlet of channel, and a lateral hot air blower between channel and spinneret plate for increasing the solvent evaporating and recovering efficiency.
Description
Technical field
The present invention relates to a kind of dry spinning heated air circulation device, is a kind of device that in the process of dry spinning solvent can fully be evaporated therein and reclaim, and belongs to the apparatus field of dry spinning.
Background technology
When polymer has enough heat endurances in its solvent boiling point scope, should be used in the method spinning.When adopting dry spinning, the problem that relates to the solvent evaporation and reclaim at first is to evaporate from the entrained solvent of tow that spinnerets sprays and to collect, and secondly is the solvent that evaporates to be delivered in the retracting device reclaim.The evaporation of solvent and the raising of collection rate are the bases of improving solvent recovery efficient.
Evaporation and collection for solvent are carried out in spinning shaft, mainly be to adopt in spinning shaft, to feed hot inert gas, solvent can fully be evaporated therein, and with gas deliver in the solvent recovery unit solvent reclaimed after, fresh inert gas behind the recovery solvent is sent into the evaporation of carrying out solvent in the path again again, thereby form a circulation; Therefore, the path is the device that is used for the dry spinning evaporation, collects solvent.
Yet present dry spinning path is the thick vertical tube that 4-8 rice is long normally, and electrical heating can be carried out in the outside of spinning shaft, in order to evaporating solvent; Path the inside can feed heat gas (for example: nitrogen), in order to reclaim solvent; The inlet of spinning head and hot gas is housed in the upper end in path, the gas of heat moves from top to bottom along the direction of tow, enter the path, solvent in the tow is evaporated, and directly deliver to solvent recovery unit by the air outlet of spinning shaft below, solvent is reclaimed, this mode also is known as co-current spinning, this kind method is widely used in the production of dry acrylic fiber, yet solvent increases but existing from the upper end, path to the hot gas of lower end, and when hot gas flow into the lower end, its solvent had hindered the further evaporation of solvent in the tow that comes downwards to the bottom, and it is unfavorable that solvent is discharged.Another mode is called counter-current spinning, promptly import hot gas from the lower end, path, discharge from the upper end, though it can keep the hot gas at filament mouth place, bottom, path to have lower solvent strength, make it to have better solvent evaporation rate with respect to co-current spinning, therefore its efficient also only can reach about 95%,, further improvement is used for evaporation and collects solvent device, is beneficial to improve the target that solvent recovering yield becomes the industry.
Summary of the invention
In order further to improve solvent recovering yield, the present invention proposes a kind of new dry spinning heated air circulation device, its purpose is to overcome being used in the existing dry spinning and evaporates the problem that the solvent evaporation efficiency in the path of collecting solvent can't improve.
For achieving the above object, the technical solution adopted in the present invention is: a kind of dry spinning heated air circulation device, comprise path, solvent recovery unit and be located at solvent recovery unit outlet and the gas access, path between heat exchanger, wherein: be provided with a lateral blowing device between the upper end in described path and spinnerets, the relative two sides of described lateral blowing device are respectively equipped with a gas access and a gas vent; Described solvent recovery unit outlet links to each other with the gas access in described path, the inlet of lateral blowing device respectively through heat exchanger, and the outlet of path, lateral blowing device is connected with the solvent recovery unit inlet.Adopt above-mentioned connected mode, feed fresh hot gas to path and lateral blowing device respectively, with on path and the path and the solvent between the spinnerets evaporate and collect to be delivered to hold in the agent retracting device and carry out solvent recovery, the fresh hot gas after the recovery is imported in path and the lateral blowing device again.
The present invention also provides a kind of technical scheme: a kind of dry spinning heated air circulation device, comprise path, solvent recovery unit and be located at solvent recovery unit outlet and the gas access, path between heat exchanger, wherein: be provided with a lateral blowing device between the upper end in described path and spinnerets, the relative two sides of described lateral blowing device are respectively equipped with a gas access and a gas vent; Described solvent recovery unit outlet is linked to each other with the hot gas inlet in described path through heat exchanger, and the hot gas outlet on the described path links to each other with the gas access of lateral blowing device, and the hot gas outlet of lateral blowing device is connected with the solvent recovery unit inlet.The fresh hot gas that comes out from the solvent retracting device at first enters the path and carries out the solvent evaporation, delivers to the lateral blowing device again through the hot gas outlet in path and carries out the solvent evaporation, comes out to send back to from lateral blowing again and carries out solvent recovery in the solvent recovery unit.
In order to make Cross Wind Force even, make wind energy enough blow to tow from whole side, add the contact area of strong wind and tow, the side leading wind inlet of described lateral blowing device covers the whole side along the longitudinal direction of lateral blowing device.
For the wind speed that makes the approaching side blowing device is improved, be provided with a blower fan between the hot gas inlet of outlet of described path hot gas and lateral blowing device.
When adopting second kind of technical scheme, be compensated in order to make temperature drop from the path effluent air, be provided with heat exchanger between the hot gas inlet of outlet of described path hot gas and lateral blowing device.
Owing to adopt technique scheme, be provided with a lateral blowing device in the upper end in path, the exit of spinnerets, feed hot gas, can carry out initial permutation to firm solvent from the next tow of spinnerets outlet, the wind of side direction is compared the contact area increase with tow with the hot blast that feeds along the path direction, more help taking away solvent, help improving evaporation, the collection efficiency of solvent.
Deliver to the gas access of lateral blowing device after will heating from the gas that has solvent that flow out in the path again, the tow solvent strength in spinnerets exit is the highest, the concentration of the hot gas that has solvent is improved once more, the hot gas that will have a dense solvent through the outlet of lateral blowing device is delivered to solvent recovery unit again, solvent collection efficient is improved greatly, again can energy savings, save the feeding of fresh inert gas, reduce power consumption, promptly can reduce product cost, its solvent evaporation rate can reach 99%.
Description of drawings
Fig. 1 is the structural representation of the embodiment one of dry spinning heated air circulation device of the present invention;
Fig. 2 is the structural representation of the embodiment two of dry spinning heated air circulation device of the present invention;
Fig. 3 is the structural representation of the embodiment three of dry spinning heated air circulation device of the present invention.
Wherein: path 4 solvent recovery units, 3 heat exchangers 5
Gas access, path 1 path gas vent, 2 lateral blowing devices 6
Lateral blowing device gas access 61 lateral blowing device gas vents 62
The specific embodiment
Embodiment one, referring to Fig. 1, showed a kind of dry spinning heated air circulation device among the figure, it comprises path 4, solvent recovery unit 3, heat exchanger 5, path 4 is respectively equipped with hot gas inlet 1 and outlet 2, and its inlet 1 is positioned at the below in path 4, and outlet 2 is positioned at the top in path 4; Be provided with a lateral blowing device 6 between the upper end in described path 4 and spinnerets, two relative sides of described lateral blowing device 6 have an inlet 61 and one outlet 62.The outlet of solvent recovery unit 3 links to each other through the inlet 61 of heat exchanger 5 with gas access, path 1, lateral blowing device, and the inlet of solvent recovery unit 3 links to each other with the outlet 62 of path gas vent 2, lateral blowing device.
Wherein solvent recovery unit 3 belongs to prior art, the gas that comes out through the outlet 62 of the gas vent 2 in path 4, lateral blowing device 6 is sent into and is carried out solvent recovery in the solvent recovery unit 3, and the live gas after the recovery evaporates in path 4 and lateral blowing device 6 are sent in the outlet of solvent recovery unit 3 again and collects solvent.In the present embodiment, in the inlet of path 4 and lateral blowing device 6, feed the fresh hot nitrogen that comes out from the solvent retracting device respectively, carry out the evaporation of solvent in order to side direction with the tow parallel direction, than only carry out forward evaporating solvent in path 4, its efficient can improve greatly.
Embodiment two, referring to Fig. 2, showed a kind of dry spinning heated air circulation device among the figure, comprise path 4, solvent recovery unit 3, heat exchanger 5, path 4 is respectively equipped with hot gas inlet 1 and outlet 2, and its inlet 1 is positioned at the below in path 4, and outlet 2 is positioned at the top in path 4; Be provided with a lateral blowing device 6 in the exit of spinnerets, the upper end in path 4, described lateral blowing device 6 has inlet 61 that covers a side and the outlet 62 that covers the another side; And the outlet of solvent recovery unit 3 links to each other with gas access, path 1 through heat exchanger 5, and the gas vent 2 in described path 4 is connected to the inlet 61 of lateral blowing device; The inlet of solvent recovery unit 3 links to each other with the outlet 62 of lateral blowing device.
Export 2 to establishing a heat exchanger 7 between the inlet of lateral blowing device, in order to the temperature drop of supplemental heat gas through the path.
Between the hot gas of the outlet of the hot gas in described path and lateral blowing device enters the mouth, be provided with a blower fan 8, the wind speed of approaching side blowing device is improved, be beneficial to the evaporation and the collection of solvent.
During use, the fresh nitrogen that comes out through solvent recovery unit 3 is admitted in the path 4 through the gas access 1 in path 4, export in the 2 approaching side blowing devices 6 through the path again, the solvent collection of evaporation sent into through lateral blowing device 6 outlet 62 carry out solvent recovery in the solvent recovery unit 3, the live gas after the recovery evaporates in path 4 and lateral blowing device 6 are sent in the outlet of solvent recovery unit 3 again and collects solvent.
Near the filament mouth in described path 4, feed nitrogen-sealed, flow out from lower end, path filament mouth to prevent solvent.
Present embodiment is that counter-current spinning and lateral blowing device series combination are carried out solvent evaporation and collection, the inlet 1 of hot nitrogen 4 belows from the path is sent into, outlet 2 gases that come out are delivered in the lateral blowing device 6 through the path, the solvent from the tow of spinnerets ejection is just further reclaimed, the concentration of the hot gas that has solvent is improved once more, the same like this solvent recovery efficient that can make improves greatly, again can energy savings, save the input quantity of fresh N gas, reduce power consumption, promptly can reduce product cost, its solvent recovery ratio can reach 99%.
Embodiment three, referring to Fig. 3, showed a dry spinning heated air circulation device among the figure, are with a last embodiment difference: the hot gas inlet 1 in path 4 is positioned at the top in path 4, and hot gas outlet 2 is positioned at the below in path 4.Be that described hot gas is that 4 top inlet 1 enters from the path, after flowing out from the outlet 2 of 4 belows, path, be sent to again in the lateral blowing device 6 that present embodiment carries out solvent evaporation and collection with co-current spinning and lateral blowing device series combination.
The non-limiting protection scope of the present invention of the above embodiment of the present invention; inventive point of the present invention is to add the lateral blowing device above the path; the tow that just comes out from spinnerets is carried out the initial evaporation and the collection of solvent by the side direction hot blast of introducing; feed the deficiency that hot gas carries out the solvent evaporation to overcome only following current in the path, adverse current or alternate manner, thus the efficient that improves the solvent evaporation and collect.
Claims (5)
1. dry spinning heated air circulation device, comprise path (4), solvent recovery unit (3) and be located at solvent recovery unit (3) outlet and gas access, path (1) between heat exchanger (5), it is characterized in that: be provided with a lateral blowing device (6) between the upper end of described path (4) and spinnerets, the relative two sides of described lateral blowing device are respectively equipped with a gas access (61) and a gas vent (62); Described solvent recovery unit (3) outlet links to each other with the gas access (61) of gas access, described path (1), lateral blowing device (6) respectively through heat exchanger (5), and the outlet (2) of path, lateral blowing device, (62) are connected with solvent recovery unit (3) inlet.
2. dry spinning heated air circulation device, comprise path (4), solvent recovery unit (3) and be located at solvent recovery unit (3) outlet and gas access, path (1) between heat exchanger (5), it is characterized in that: be provided with a lateral blowing device (6) between the upper end of described path (4) and spinnerets, the relative two sides of described lateral blowing device are respectively equipped with a gas access (61) and a gas vent (62); Described solvent recovery unit (3) outlet links to each other with the gas access (1) of described path (4) through heat exchanger (5), hot gas outlet (2) on the described path (4) links to each other with the gas access (61) of lateral blowing device, and the hot gas outlet (62) of lateral blowing device (6) is connected with solvent recovery unit (3) inlet.
3. dry spinning heated air circulation device according to claim 1 and 2 is characterized in that, the gas access (61) of described lateral blowing device (6) covers the whole side along the longitudinal direction of lateral blowing device.
4. dry spinning heated air circulation device according to claim 2 is characterized in that, is provided with a blower fan (8) between the gas vent (2) of described path (4) and the gas access (61) of lateral blowing device (6).
5. according to claim 2 or 4 described dry spinning heated air circulation devices, it is characterized in that, be provided with heat exchanger (7) between the gas vent (2) of described path (4) and the gas access (61) of lateral blowing device (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031562981A CN100378258C (en) | 2003-09-03 | 2003-09-03 | Dry spinning hot air circulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031562981A CN100378258C (en) | 2003-09-03 | 2003-09-03 | Dry spinning hot air circulation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1590602A true CN1590602A (en) | 2005-03-09 |
| CN100378258C CN100378258C (en) | 2008-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031562981A Expired - Fee Related CN100378258C (en) | 2003-09-03 | 2003-09-03 | Dry spinning hot air circulation device |
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| CN (1) | CN100378258C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101851792A (en) * | 2010-06-25 | 2010-10-06 | 浙江四海氨纶纤维有限公司 | Nitrogen supplementing device of spandex spinning channel and process thereof |
| CN101962813A (en) * | 2010-08-16 | 2011-02-02 | 江阴中绿化纤工艺技术有限公司 | Thermal-energy recycling system in spandex-spinning production process |
| CN101724928B (en) * | 2009-11-13 | 2011-06-08 | 杭州益邦氨纶有限公司 | Second air return system for producing spandex |
| CN103668489A (en) * | 2013-12-23 | 2014-03-26 | 马军 | Dry spinning organic solvent recovery and nitrogen recycling technology and device |
| CN103757752A (en) * | 2014-01-21 | 2014-04-30 | 马军 | Process and device for organic solvent recovery and air cycle use in dry spinning |
| CN103849952A (en) * | 2012-11-30 | 2014-06-11 | 杭州益邦氨纶有限公司 | Novel air return system for producing spandex |
| CN108166087A (en) * | 2018-03-13 | 2018-06-15 | 王慧丽 | A kind of polyester fiber spinning system |
| CN108315827A (en) * | 2018-03-13 | 2018-07-24 | 王慧丽 | A kind of polyester fiber spinning technique |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922056B (en) * | 2009-06-12 | 2012-05-23 | 珠海醋酸纤维有限公司 | Method for adjusting spinning channel wind |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2697251A (en) * | 1951-02-07 | 1954-12-21 | American Viscose Corp | Method and apparatus for manufacturing artificial filaments |
| BE511526A (en) * | 1951-05-22 | |||
| US2763892A (en) * | 1952-04-16 | 1956-09-25 | Celanese Corp | Spinning apparatus |
| GB791784A (en) * | 1955-02-05 | 1958-03-12 | Phrix Werke Ag | Method of recovering the solvent used in the dry-spinning of polyacrylonitrile or copolymers thereof |
| GB1172607A (en) * | 1966-11-04 | 1969-12-03 | Toyo Boseki | Dry Spinning Apparatus |
| FR1572506A (en) * | 1968-05-13 | 1969-06-27 | ||
| CN2091301U (en) * | 1991-06-20 | 1991-12-25 | 章群生 | Fumes glyceryl fiber dry method spinning machine |
-
2003
- 2003-09-03 CN CNB031562981A patent/CN100378258C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101724928B (en) * | 2009-11-13 | 2011-06-08 | 杭州益邦氨纶有限公司 | Second air return system for producing spandex |
| CN101851792A (en) * | 2010-06-25 | 2010-10-06 | 浙江四海氨纶纤维有限公司 | Nitrogen supplementing device of spandex spinning channel and process thereof |
| CN101962813A (en) * | 2010-08-16 | 2011-02-02 | 江阴中绿化纤工艺技术有限公司 | Thermal-energy recycling system in spandex-spinning production process |
| CN101962813B (en) * | 2010-08-16 | 2011-09-14 | 江阴中绿化纤工艺技术有限公司 | Thermal-energy recycling system in spandex-spinning production process |
| CN103849952A (en) * | 2012-11-30 | 2014-06-11 | 杭州益邦氨纶有限公司 | Novel air return system for producing spandex |
| CN103668489A (en) * | 2013-12-23 | 2014-03-26 | 马军 | Dry spinning organic solvent recovery and nitrogen recycling technology and device |
| CN103668489B (en) * | 2013-12-23 | 2016-06-01 | 马军 | Dry-spinning organic solvent reclaims and nitrogen circulation operation and device thereof |
| CN103757752A (en) * | 2014-01-21 | 2014-04-30 | 马军 | Process and device for organic solvent recovery and air cycle use in dry spinning |
| CN103757752B (en) * | 2014-01-21 | 2015-12-30 | 马军 | Dry spinning organic solvent reclaims and air circulation operation and device thereof |
| CN108166087A (en) * | 2018-03-13 | 2018-06-15 | 王慧丽 | A kind of polyester fiber spinning system |
| CN108315827A (en) * | 2018-03-13 | 2018-07-24 | 王慧丽 | A kind of polyester fiber spinning technique |
| CN108315827B (en) * | 2018-03-13 | 2019-07-19 | 扬州君禾薄膜科技有限公司 | A kind of polyester fiber spinning technique |
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| Publication number | Publication date |
|---|---|
| CN100378258C (en) | 2008-04-02 |
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