CN101575747A - High strength and high modulus super high molecular weight polyethylene fiber spinning equipment and spinning process thereof - Google Patents
High strength and high modulus super high molecular weight polyethylene fiber spinning equipment and spinning process thereof Download PDFInfo
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- CN101575747A CN101575747A CNA2009100374969A CN200910037496A CN101575747A CN 101575747 A CN101575747 A CN 101575747A CN A2009100374969 A CNA2009100374969 A CN A2009100374969A CN 200910037496 A CN200910037496 A CN 200910037496A CN 101575747 A CN101575747 A CN 101575747A
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Abstract
The invention discloses a high strength and high modulus super high molecular weight polyethylene fiber spinning equipment and a spinning process thereof. The spinning equipment comprises a large capacity screw extruder and a combined spinneret plate arranged at the position of a nozzle of the large capacity screw extruder, wherein the combined spinneret plate comprises at least two parallelly connected spinneret plates; and a partition is arranged between each two spinneret plates. Due to the use of the combined spinneret plate, the process ensures continuous production without limitation on extrusion amount during small-size filatures production, thereby making full use of the productivity of the screw of the extruder, saving energy, reducing equipment time and production cost and greatly improving the productivity of a single machine.
Description
Technical field
The present invention relates to a kind of macromolecular material spinning equipment, relate in particular to a kind of high-performance high strength and high modulus super high molecular weight polyethylene fiber spinning equipment that is applied to.The invention still further relates to the spinning technique of above-mentioned high-strength and high-modulus ultrahigh molecular weight polyethylene fibre.
Background technology
High-tenacity polyethylene fibre also claims superhigh molecular weight polyethylene fibers, is to adopt the composite fibre materials with high strength and modulus of molecular weight in the ultra-high molecular weight polyethylene production more than 1,000,000.In the world, high-tenacity polyethylene fibre, aramid fiber, carbon fiber are referred to as three big high performance fibre material.Wherein superhigh molecular weight polyethylene fibers is being brought into play important role because of having high strength, high-modulus, low-density characteristics aspect modernized war and defend equipment, aerospace and the aviation, has also obtained application more and more widely at civil area.The production method of above-mentioned superhigh molecular weight polyethylene fibers mainly is to adopt double screw extruder to carry out spinning.
Chinese patent 95111657.6 discloses a kind of Ultrastrength polyethylene fibre spinning apparatus, it comprises that the pressure dissolution kettle is connected to the inlet of double screw extruder by pipeline and pressure medial launder, the outlet of double screw extruder connects the inlet of measuring pump by pipeline, measuring pump exports the inlet of taking over filter by pipeline, and the outlet of filter connects spinnerets by pipeline.This scheme is carried out deaeration by double screw extruder, is suitable for industrialized continuous production; But adopt this kind production decision, because the filter capacity of its filter and the restriction of spinnerets production capacity, the unit production capacity can only be in annual production below 100 tons.Existing single-filtering chamber filter need improve the production that filtering accuracy could satisfy big Denier fiber, and the raising meeting limit production efficiency of filtering accuracy is difficult to accomplish scale production.
Chinese patent CN200520048119.2 discloses a kind of novel high-strength high-modulus polyethylene fiber spin bank, comprise storage vat, extruder, filtration supercharging device and freezing bath, place ground solvent tank to link to each other with the storage vat of conveying and metering pump according to this with a high position by pipeline, storage vat is connected to the inlet of extruder by loading hopper, extruder connects supercharging filter, manifold and filament spinning component, cooling bath according to this, be connected with fiber barrel with the roll dies that falls, fiber barrel is positioned at the below of roll dies again.This scheme has been strengthened the filtration of super high molecular polyethylene solution, thereby has improved fiber quality; But this scheme also is only to adopt a double screw extruder to be equipped with general spinnerets, single-filter, and its output is still received restriction, and the unit production capacity can only be in 100 tons/year.
Summary of the invention
At the prior art deficiency, the technical problem to be solved in the present invention provides the high strength and high modulus super high molecular weight polyethylene fiber spinning equipment of a kind of unit production capacity that can increase substantially spinning, performance extruder potential production capacity.
The present invention provides a kind of simultaneously can increase substantially the unit production capacity of spinning, the high strength and high modulus super high molecular weight polyethylene fiber spinning technology of performance extruder potential production capacity.
In order to overcome the prior art deficiency, the technical solution used in the present invention is: a kind of high strength and high modulus super high molecular weight polyethylene fiber spinning equipment, described spinning equipment comprises big extrusion capacity screw rod machine, is arranged at the multiple spinneret at the nozzle place of this big extrusion capacity screw rod machine, described multiple spinneret comprises at least two spinneretss that connect side by side, between per two spinneretss a space bar is set.
More preferably, described high strength and high modulus super high molecular weight polyethylene fiber spinning equipment also comprises the many filter chambers filter that is arranged between big extrusion capacity screw rod machine and the multiple spinneret, this many filter chambers filter comprises at least two filter chambers, and the entrance and exit of each filter chamber respectively is provided with a valve.
More preferably, described high strength and high modulus super high molecular weight polyethylene fiber spinning equipment also comprises temperature-adjusting device, the controller that this temperature-adjusting device comprises the temperature sensor of the head that is arranged at big extrusion capacity screw rod machine, electrically connect with this temperature sensor, the power governor that electrically connects with this controller, be arranged at head and head is carried out thermoregulator heater, described power governor electrically connects with described heater and exports control signal and give heater.
The present invention also provides a kind of polyethylene fiber spinning technology, uses above-mentioned polyethylene fiber spinning equipment, and this spinning technique may further comprise the steps: set spinning technique environmental standard temperature range; Detect and feedback actual environment temperature; If the actual environment temperature exceeds the normal temperature scope, the actual environment temperature is regulated, otherwise continue to detect and feedback actual environment temperature.
More preferably, described environmental standard temperature range is ± 5 ℃ of normal temperature setting values.
The present invention also provides another polyethylene fiber spinning technology, uses above-mentioned polyethylene fiber spinning equipment, and this spinning technique may further comprise the steps: set spinning technique head normal temperature scope; Detection is also fed back actual head temperature; If actual head temperature exceeds the normal temperature scope, actual head temperature is regulated, otherwise continued to detect and feed back actual head temperature; Described environmental standard temperature range is environmental standard desired temperature ± 5 ℃.
The invention has the beneficial effects as follows: use multiple spinneret, when needs are produced little fiber number spinning, do not need to limit extrusion capacity and just can continue to produce, made full use of the production capacity of extruder screw, energy savings, reduction equipment time cost and production cost; Improve the unit production capacity greatly, realized the ability in single line production capacity 100-400 ton/year.
The present invention uses many filter chambers filter, melt filtration effect when guaranteeing big flow.This many filter chambers filter is used in combination with multiple spinneret, can determine to use the quantity of filter chamber by the control valve of each pipeline of control, thereby changes the filter capacity of filter; When the feed amount of the melt of regulating measuring pump, can under identical filtering accuracy, regulate the usage quantity of filter chamber, and not need to regulate filtering accuracy.Many filter chambers filter can also improve filter capacity, during to a large amount of feed of measuring pump, produces the fiber of different fiber numbers and does not influence filter effect, guarantees the high-quality of fiber.
Description of drawings
Fig. 1 is the structural representation of the multiple spinneret among the present invention;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the many filter chambers structure of filter schematic diagram among the present invention;
Fig. 4 is the organigram of the PID temperature controller among the present invention.
The specific embodiment
Below embodiments of the present invention are specifically described.
A kind of high strength and high modulus super high molecular weight polyethylene fiber spinning equipment of the present invention, described spinning equipment comprises big extrusion capacity screw rod machine, is arranged at the multiple spinneret 10 at the nozzle place of this big extrusion capacity screw rod machine, described multiple spinneret comprises at least two spinneretss 11 that connect side by side, between per two spinneretss 11 space bar 15 is set.Each spinnerets is provided with one group of spinneret orifice 12.
Use multiple spinneret 11, when needs are produced little fiber number spinning, do not need to limit extrusion capacity and just can continue to produce, made full use of the production capacity of extruder screw, energy savings, reduction equipment time cost and production cost; Improve the unit production capacity greatly, realized the ability in single line production capacity 100-400 ton/year.
For guaranteeing each spinnerets wire vent uniformity, on circuit design, adopted special construction, realize the multiple spinneret pressure stability.
The present invention can independently get up to be divided into three synnemas separately with the silk from multiple spinneret left part, middle part, right part ejection when keeping the pump feed amount of big measuring pump, produce the fiber of little fiber number; Also can produce the fiber of big fiber number with from the synthetic altogether synnema of the silk of spinnerets left part, middle part, right part ejection.Use multiple spinneret flexibly, under the prerequisite that does not reduce equipment capacity, can produce the fiber of different size, adapt to large-scale production.
Improvement as such scheme, described high strength and high modulus super high molecular weight polyethylene fiber spinning equipment also comprises the many filter chambers filter 20 that is arranged between big extrusion capacity screw rod machine and the multiple spinneret, this many filter chambers filter comprises at least two filter chambers 22, and the entrance and exit of each filter chamber respectively is provided with a valve 26.
The necessary filter capacity that improves filter after the melt flow of screw extruder improves, otherwise the pressure reduction rising is fast before and after the whole production cycle middle filtrator, causes spinning instability, lousiness to break end many.The present invention uses many filter chambers filter, melt filtration effect when guaranteeing big flow.This many filter chambers filter is used in combination with multiple spinneret, can determine to use the quantity of filter chamber by the control valve of each pipeline of control, thereby changes the filter capacity of filter; When the feed amount of the melt of regulating measuring pump, can under identical filtering accuracy, regulate the usage quantity of filter chamber, and not need to regulate filtering accuracy.Many filter chambers filter can also improve filter capacity when keeping original filtering accuracy, during to a large amount of feed of measuring pump, produce the fiber of different fiber numbers and do not influence filter effect, guarantee the high-quality of fiber.Therefore, the filtering accuracy that many filter chambers filter need not change the filter chamber just can satisfy the production of different Denier fibers and the high-quality of assurance fiber, is achieved large-scale production.
Improvement as such scheme, described high strength and high modulus super high molecular weight polyethylene fiber spinning equipment also comprises temperature-adjusting device, controllers 55 that this temperature-adjusting device comprises the temperature sensor 52 of the head 50 that is arranged at big extrusion capacity screw rod machine, electrically connects with this temperature sensor 52, the power governors 56 that electrically connect with this controller 55, be arranged at head and head is carried out thermoregulator heater 58, described power governor 56 and described heater 58 be electrical to be connected and exports control signal to heater 58.
The present invention also provides a kind of polyethylene fiber spinning technology, uses above-mentioned polyethylene fiber spinning equipment, and this spinning technique may further comprise the steps: set spinning technique environmental standard temperature range; Detect and feedback actual environment temperature; If the actual environment temperature exceeds the normal temperature scope, the actual environment temperature is regulated, otherwise continue to detect and feedback actual environment temperature.
As the improvement of such scheme, described environmental standard temperature range is ± 5 ℃ of normal temperature setting values.
Because the particularity of technology, the fluctuation of ambient temperature will influence each Heating Zone Temperature of screw extruder, influences the control of spinning temperature.Constant environment temperature can reduce the high temperature-controlled precision required pressure of temperature controlling instruments, promotes production stability, production capacity and product quality thereby also promptly improve the technological temperature control accuracy.The present invention is by taking the insulation measure to equipment environment of living in, and the fluctuation that alleviates ambient temperature mainly comprises technological temperature the influence of each Heating Zone Temperature of screw extruder makes temperature control precision in processing range.
The present invention also provides another polyethylene fiber spinning technology, uses above-mentioned polyethylene fiber spinning equipment, and this spinning technique may further comprise the steps: set spinning technique head normal temperature scope; Detection is also fed back actual head temperature; If actual head temperature exceeds the normal temperature scope, actual head temperature is regulated, otherwise continued to detect and feed back actual head temperature; Described environmental standard temperature range is environmental standard desired temperature ± 5 ℃.
Big each Heating Zone Temperature of extrusion capacity screw extruder and pressure, spinning holding temperature, isoparametric the stablizing of measuring pump rotating speed can directly influence production capacity and output, and above parameter instability also can cause the spinning instability, influences the quality of spinning.The present invention controls parameter by the PID controller, realizes that temperature control precision is in the scope of technological requirement.
Heating control system is gathered signal by temperature sensor and is input to the PID controller.When the dut temperature of gathering when temperature sensor departs from desirable set-point, the PID controller compares (P), integration (I), differential (D) computing according to the deviation of measuring-signal and set-point, thereby export certain appropriate control signals and give power governor, impel the heating of heater value to return to set-point, reach PID and control automatically.
Above disclosed only is the preferred embodiments of the present invention, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of being done according to the present patent application claim still belongs to the scope that the present invention is contained.
Claims (6)
1, a kind of high strength and high modulus super high molecular weight polyethylene fiber spinning equipment, it is characterized in that, described spinning equipment comprises big extrusion capacity screw rod machine, is arranged at the multiple spinneret at the nozzle place of this big extrusion capacity screw rod machine, described multiple spinneret comprises at least two spinneretss that connect side by side, between per two spinneretss a space bar is set.
2, polyethylene fiber spinning equipment according to claim 1, it is characterized in that: also comprise the many filter chambers filter that is arranged between big extrusion capacity screw rod machine and the multiple spinneret, this many filter chambers filter comprises at least two filter chambers, and the entrance and exit of each filter chamber respectively is provided with a valve.
3, polyethylene fiber spinning equipment according to claim 1, it is characterized in that: also comprise temperature-adjusting device, the controller that this temperature-adjusting device comprises the temperature sensor of the head that is arranged at big extrusion capacity screw rod machine, electrically connect with this temperature sensor, the power governor that electrically connects with this controller, be arranged at head and head is carried out thermoregulator heater, described power governor electrically connects with described heater and exports control signal and give heater.
4, a kind of high strength and high modulus super high molecular weight polyethylene fiber spinning technology is used claim 1 or 2 or 3 described polyethylene fiber spinning equipments, it is characterized in that may further comprise the steps: set spinning technique environmental standard temperature range; Detect and feedback actual environment temperature; If the actual environment temperature exceeds the normal temperature scope, the actual environment temperature is regulated, otherwise continue to detect and feedback actual environment temperature.
5, polyethylene fiber spinning technology according to claim 1 is characterized in that: described environmental standard temperature range is ± 5 ℃ of normal temperature setting values.
6, a kind of polyethylene fiber spinning technology is used the described polyethylene fiber spinning equipment of claim 3, it is characterized in that may further comprise the steps: set spinning technique head normal temperature scope; Detection is also fed back actual head temperature; If actual head temperature exceeds the normal temperature scope, actual head temperature is regulated, otherwise continued to detect and feed back actual head temperature; Described environmental standard temperature range is environmental standard desired temperature ± 5 ℃.
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| CNA2009100374969A CN101575747A (en) | 2009-03-02 | 2009-03-02 | High strength and high modulus super high molecular weight polyethylene fiber spinning equipment and spinning process thereof |
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| CNA2009100374969A CN101575747A (en) | 2009-03-02 | 2009-03-02 | High strength and high modulus super high molecular weight polyethylene fiber spinning equipment and spinning process thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286792A (en) * | 2011-08-09 | 2011-12-21 | 山东爱地高分子材料有限公司 | High-strength high-modulus ultrahigh molecular weight polyethylene fiber spinning equipment and spinning process thereof |
| CN102582293A (en) * | 2012-02-29 | 2012-07-18 | 厦门大学 | Electrospinning direct-writing closed-loop control system and control method |
| CN103614786A (en) * | 2013-11-29 | 2014-03-05 | 大连恒大高新材料开发有限公司 | Switching assembly of spinning process of spunbond non-woven geotextile cloth |
-
2009
- 2009-03-02 CN CNA2009100374969A patent/CN101575747A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286792A (en) * | 2011-08-09 | 2011-12-21 | 山东爱地高分子材料有限公司 | High-strength high-modulus ultrahigh molecular weight polyethylene fiber spinning equipment and spinning process thereof |
| CN102582293A (en) * | 2012-02-29 | 2012-07-18 | 厦门大学 | Electrospinning direct-writing closed-loop control system and control method |
| CN102582293B (en) * | 2012-02-29 | 2014-07-23 | 厦门大学 | Electrospinning direct-writing closed-loop control system and control method |
| CN103614786A (en) * | 2013-11-29 | 2014-03-05 | 大连恒大高新材料开发有限公司 | Switching assembly of spinning process of spunbond non-woven geotextile cloth |
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Owner name: AIDI HIGH MOLECULAR MATERIAL CO., LTD., SHANDONG Free format text: FORMER OWNER: GUANGDONG SHIDA UHMWPE FIBER CO., LTD. Effective date: 20110307 |
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Free format text: CORRECT: ADDRESS; FROM: 529325 NO.1, MEIHUA ROAD, SHAGANG DISTRICT, KAIPING CITY, GUANGDONG PROVINCE TO: 271100 NO.16, FENGHUANG ROAD, NEW AND HIGH TECHNOLOGY INDUSTRIAL AREA, LAIWU CITY, SHANDONG PROVINCE |
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Effective date of registration: 20110307 Address after: 271100 No. 16 Fenghuang Road, Laiwu hi tech Industrial Zone, Shandong, China Applicant after: Aidi High Molecular Material Co., Ltd., Shandong Address before: 529325 Guangdong province Kaiping city Sha Gang Meihua Road No. 1 Applicant before: Guangdong Shinda UHMWPE Fiber Co., Ltd. |
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Open date: 20091111 |