CN107904684B - Spinning method for prolonging plate cleaning period of special-shaped section fiber production - Google Patents
Spinning method for prolonging plate cleaning period of special-shaped section fiber production Download PDFInfo
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- CN107904684B CN107904684B CN201711342773.8A CN201711342773A CN107904684B CN 107904684 B CN107904684 B CN 107904684B CN 201711342773 A CN201711342773 A CN 201711342773A CN 107904684 B CN107904684 B CN 107904684B
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- 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
- D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
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- 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
- D01D11/00—Other features of manufacture
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- 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
- D01D13/00—Complete machines for producing artificial threads
- D01D13/02—Elements of machines in combination
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- Textile Engineering (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
The invention relates to a spinning method for prolonging the plate cleaning period of special-shaped section fiber production, which keeps the longitudinal height unchanged, increases the cross-sectional area of a slow cooling chamber, keeps the plate surface temperature of a spinneret plate in a mode of naturally preserving heat and additionally arranging a heat insulation plate under the heat insulation plate to prolong a calm zone, prolongs the plate cleaning period of special-shaped section fiber production by 35-55%, and increases the cross-sectional area of the slow cooling chamber, namely, changes the cross section of the slow cooling chamber from a circle to a rectangle on the premise of keeping the spinneret plate connected with the slow cooling chamber unchanged. According to the invention, the cylindrical slow cooling chamber is changed into a rectangular column shape, so that the dissipation space of spinning oligomers is enlarged, the active heating type slow cooling area is changed into a non-heating heat preservation type, the aggregation number and the hardness degree of the oligomers on a high-temperature spinneret plate are reduced, the plate cleaning period of fibers with special-shaped cross sections is greatly prolonged, the production efficiency is improved, the energy consumption is reduced, waste fibers are reduced, the spinning quality is improved, and the labor intensity of workers is reduced.
Description
Technical Field
The invention belongs to the field of spinning, relates to a spinning method for prolonging the plate cleaning period of profiled cross-section fiber production, and particularly relates to a spinning method for reducing the aggregation number and the hardness degree of oligomers on a high-temperature spinneret plate and prolonging the plate cleaning period of profiled cross-section fiber production by enlarging the dissipation space of spinning oligomers and arranging a non-heating heat preservation type slow cooling area.
Background
In traditional polyester filament yarn production technology, all be provided with slow cooling district usually, its purpose has two: firstly, the strand silk is ensured not to be rapidly cooled after being discharged from a spinneret plate, so that the exterior of the strand silk is highly oriented due to rapid cooling, macromolecules are in a disordered state due to high temperature inside the strand silk, and the difference of the radial structure of the fiber is large, namely the so-called skin-core effect; secondly, a higher temperature of the spinneret surface is maintained, so that the filaments are smoothly discharged, the orifice bulking effect is normal, and the phenomenon of melt fracture to form weak filaments is avoided.
At present, the slow cooling effect of the slow cooling zone is mainly ensured by heating the slow cooling zone, the heating mode of the slow cooling zone mainly has two modes, both modes are active heating, firstly, as shown in figure 1, a heat medium of a box body is used for heating, once the spinning temperature is determined, the adjustment is generally not needed, the spinning temperature is passive, and different application conditions are difficult to adapt; another heating method is shown in fig. 2, an electrical heating method is adopted for heating, the setting temperature can be higher than the box heat medium temperature, or lower than the box heat medium temperature, and the method is flexible, and can be set according to actual conditions, but the high temperature can aggravate the coking of the oligomer on the spinneret, if the temperature is reduced, such as the power is cut off and the heating is not carried out, because the heater is usually made of aluminum material with heavy quality and good heat transfer effect, a large amount of heat can be absorbed from the box, the heat medium is rapidly condensed around the outside of the assembly cavity, the heat is not supplemented enough, so that the temperature of the spinning assembly is reduced, the melt flow performance is obviously reduced, a large amount of broken filaments are reduced in the product, and the like, especially for the production of fibers with special-shaped cross sections, the perimeter of the orifice is obviously increased due to the special-shaped cross sections, the coke deposits, monofilament breakage is generated in the high-speed running of strand silk, the surface of a spinning cake is expressed in the form of broken filament drop and the like, the existence of the broken filament brings great trouble to post-processing unwinding, and the strength and elongation of a filament bundle are influenced, which is to be avoided as much as possible in production, so that in order to reduce the broken filament, the plate needs to be cleaned in time, and cokes at orifices and plate surfaces (mainly orifices) are cleaned, but the production efficiency is seriously influenced.
In addition to the defect of the heating mode, the slow cooling zone in the prior art has a fatal defect, namely, the slow cooling zone is a cylindrical cavity, oligomers cannot escape quickly and smoothly, the oligomers are gathered in a high-temperature field and are bound to coke on a spinneret plate in a large amount, so that the spinneret plate is blocked, the plate cleaning period is shortened, or the coked substances are attached around a spinneret hole to generate bent filaments, the appearance quality of a product is rapidly deteriorated, the broken ends are remarkably increased, the production efficiency is reduced, the labor intensity of workers is high, the phenomenon particularly shown on the production of ultra-bright profiled cross-section fibers is particularly obvious, the normal production operation is seriously influenced, and the waste of the production cost is greatly caused.
Therefore, the spinning method for prolonging the plate cleaning period in the production of the profiled cross-section fiber is of practical significance.
Disclosure of Invention
The invention aims to overcome the problems of unreasonable heating mode and structure of a slow cooling area in the prior art and provides a spinning method for prolonging the plate cleaning period of profiled-section fiber production.
In order to achieve the purpose, the invention is solved by the following technical scheme:
a spinning method for prolonging the plate cleaning period of profiled cross-section fiber production keeps the longitudinal height unchanged, the cross-sectional area of a slow cooling chamber is increased, meanwhile, the slow cooling chamber keeps the plate surface temperature of a spinneret plate in a heat preservation mode, and the plate cleaning period of profiled cross-section fiber production is prolonged by 35-55%. In the prior art, a slow cooling chamber generally adopts a heating medium or electric heating mode to keep the plate surface temperature of a spinneret plate, and the heat preservation mode is adopted to replace the heating medium or electric heating mode, so that the energy is saved, the temperature of a slow cooling area is reduced, the coking degree of oligomers on the spinneret plate surface is effectively reduced, and the plate cleaning period is prolonged.
As a preferred technical scheme:
according to the spinning method for prolonging the plate cleaning period in the production of the profiled-section fiber, the increase of the cross section area of the slow cooling chamber means that the cross section of the slow cooling chamber is changed from a circular shape to a rectangular shape on the premise that a spinneret plate connected with the slow cooling chamber is kept unchanged, the slow cooling chamber in the prior art is cylindrical, the cross section of the slow cooling chamber is circular, and under the condition that the spinneret plate connected with the slow cooling chamber is kept unchanged, the rectangular area is increased greatly relative to the circular area, so that the volume of the slow cooling chamber is increased by about 50%, and the dissipation speed and the quantity of oligomers (spinning concomitant) are greatly improved.
According to the spinning method for prolonging the plate cleaning period in the production of the special-shaped section fiber, the slow cooling chamber is surrounded by the heat insulation plate and the spacer, wherein the heat insulation plate is embedded and hung at the bottom of the spinning box body to form a part of the box body, and the slow cooling area and the box body can be separated; set up well plenum chamber I in the heated board, the spacer assigns into in well plenum chamber I and separates into a plurality of slow cooling cavities with it, has a spinneret in every slow cooling cavity, through assigning the spacer, distinguishes the spindle number, and spouts silicon oil mutual interference when avoiding clear board.
According to the spinning method for prolonging the plate cleaning period in the production of the profiled cross-section fibers, the insulation plate is a stainless steel plate filled with an insulation material capable of resisting temperature of more than 400 ℃, the thickness of the insulation plate is 30-50 mm, and the wall thickness of the stainless steel plate is 0.9-1.5 mm.
According to the spinning method for prolonging the plate cleaning period in the production of the profiled cross-section fibers, the heat insulation material is rock wool or ceramic fibers, the heat insulation material is not limited to the rock wool or ceramic fibers, and other materials with similar functions can also be suitable for the invention.
According to the spinning method for prolonging the plate cleaning period in the production of the profiled cross-section fiber, the thickness of the spacer is 1-3 mm, and the thickness of the spacer is as thin as possible under the condition of ensuring the strength.
According to the spinning method for prolonging the plate cleaning period in the production of the fibers with the special-shaped cross sections, the plurality of spinneret plates in the hollow cavity chamber I are circular spinneret plates, the diameters of the plurality of spinneret plates are the same, and the centers of the plurality of spinneret plates are positioned on the same straight line and are closely adjacent.
According to the spinning method for prolonging the plate cleaning period in the production of the profiled-section fibers, the cross section of the hollow cavity I is rectangular, the side parallel to the connection line of the circle centers of the plurality of spinneret plates is a long side, and the side perpendicular to the long side is a short side;
the length of the long side is 1.2 times of the sum of the diameters of the spinneret plates, and the length of the short side is 1.7 times of the diameter of the spinneret plate.
According to the spinning method for prolonging the plate cleaning period in the production of the special-shaped section fibers, the heat insulation plate is superposed below the heat insulation plate, the material of the heat insulation plate is the same as that of the heat insulation plate, the heat insulation plate is internally provided with the hollow cavity II, and the cross sections of the hollow cavity II and the hollow cavity I are the same in shape;
in the position where the hollow cavity II is communicated with the hollow cavity I, two edges of the cross section of the hollow cavity II coincide with two short edges of the cross section of the hollow cavity I respectively, and the length of the two edges is larger than the two short edges, so that the hollow cavity II and the hollow cavity I form a step after the thermal insulation plate and the thermal insulation plate are stacked, and oligomers are easy to diffuse.
According to the spinning method for prolonging the plate cleaning period in the production of the profiled cross-section fiber, the thickness of the heat insulation plate is 25-45 mm.
The invention mechanism is as follows:
according to the invention, under the condition of keeping the longitudinal height unchanged, the cross section of the slow cooling chamber is changed from the conventional round shape to the rectangular shape, so that the cross section area of the slow cooling chamber is increased, the dissipation space of spinning oligomer is enlarged, and meanwhile, the heat preservation mode of the slow cooling chamber is changed from an active heating type to a non-heating heat preservation type, so that the energy consumption is reduced, and the aggregation number and the hardness degree of the oligomer on a high-temperature spinneret plate are reduced. Through the improvement of the two aspects, the invention greatly prolongs the cleaning period of the fiber with the special-shaped section. In addition, the hollow heat insulation plate can be stacked under the heat insulation plate, so that the hollow cavities in the heat insulation plate and the heat insulation plate can form a step after the heat insulation plate and the heat insulation plate are stacked, on one hand, the length of a windless area is prolonged, on the other hand, the diffusion speed of the oligomer is accelerated, and meanwhile, the heat insulation effect can be achieved.
Has the advantages that:
(1) according to the spinning method for prolonging the plate cleaning period of the profiled-section fiber production, the cylindrical slow cooling chamber is changed into the rectangular column shape, the dissipation space of spinning oligomers is enlarged, the active heating type slow cooling area is changed into the non-heating heat preservation type, the aggregation number and the hardness degree of the oligomers on a high-temperature spinneret plate are reduced, and the plate cleaning period of the profiled-section fiber is greatly prolonged;
(2) according to the spinning method for prolonging the plate cleaning period in the production of the special-shaped section fibers, the production efficiency is greatly improved, the active heating type slow cooling area is changed into a non-heating heat preservation type, the energy consumption is reduced, and the power consumption is reduced by about 13% compared with that of a traditional spinning box body;
(3) the spinning method for prolonging the plate cleaning period in production of the special-shaped section fiber reduces waste silk, improves spinning quality and reduces labor intensity of workers.
Drawings
FIG. 1 is a schematic view of a prior art cylindrical slow cooling zone heated with a gaseous heating medium;
FIG. 2 is a schematic diagram of a cylindrical slow cooling zone using electric heating in the prior art;
FIG. 3 is a schematic view of a square slow cooling zone of the invention adopting an insulation board for heat preservation;
the method comprises the following steps of 1-spinning beam, 2-gas phase heating medium in the spinning beam, 3-hollow chamber I, 4-electric heater, 5-hollow chamber II, 6-insulation board and 7-insulation board.
Detailed Description
The invention will be further illustrated with reference to specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Example 1
A schematic diagram of a spinning method for prolonging a plate cleaning period in production of fibers with special-shaped cross sections is shown in figure 3, a heat insulation plate 6 is hung at the bottom of a spinning box body 1 in an embedded mode, a gas-phase heating medium 2 is arranged in the spinning box body 1, the heat insulation plate 6 is hollow in a shape like a Chinese character 'hui', a hollow cavity I3 is formed in the heat insulation plate, the cross section of the cavity is rectangular, the side parallel to the connection line of the centers of a plurality of spinneret plates is taken as the long side direction, the length of the long side is 1.2 times of the sum of the diameters of the spinneret plates, the direction perpendicular to the long side is taken as the short side direction, the length of the short side is 1.7 times of the diameter of the spinneret plates, a spacer with the thickness of 1mm is inserted into the hollow cavity I3 to divide the hollow cavity. The diameters of the spinneret plates are the same, and the centers of the circles of the spinneret plates are positioned on the same straight line and are closely adjacent. The heat insulation board 6 is a stainless steel plate filled with rock wool which can resist the temperature of 400 ℃, the thickness of the heat insulation board 6 is 30mm, and the wall thickness of the stainless steel plate is 0.9 mm. A heat insulation plate 7 with the thickness of 25mm is stacked below the heat insulation plate 6, the material of the heat insulation plate 7 is the same as that of the heat insulation plate 6, a hollow cavity II 5 is formed in the heat insulation plate 7, and the cross sections of the hollow cavity II 5 and the hollow cavity I3 are the same; the long sides of the cross sections of the hollow chamber II 5 and the hollow chamber I3 are the same in length; at the position where the hollow chamber II 5 is communicated with the hollow chamber I3, two edges of the cross section of the hollow chamber II 5 are respectively superposed with two short edges of the cross section of the hollow chamber I3, and the lengths of the two edges are greater than the two short edges.
Wherein the rectangular column slow cooling district that corresponds single circular spinneret adopts the heated board to keep warm, the embedded suspension of heated board is in the bottom of spinning box, be equipped with well plenum chamber I in the heated board, the heat insulating board superposes down the heated board, well plenum chamber II has been seted up in the heat insulating board, wherein in the position of well plenum chamber II with well plenum chamber I intercommunication, two limits of well plenum chamber II cross section coincide with two minor faces of well plenum chamber I cross section respectively, and the length on these two limits is greater than two minor faces, cavity chamber II forms a step with well plenum chamber I after the stack of two boards in order to accelerate the oligomer diffusion.
The device is used for spinning the fiber with the ultra-bright special-shaped section, after the temperatures of the heat-insulating plate and the box body are fully balanced, the temperature of the spinneret surface is detected, the measured temperature is 260 ℃ and is higher than the lowest temperature 240 ℃ which can be normally produced, smooth spinning can be realized, and the average plate cleaning period is 32 hours.
Comparative example 1
A schematic diagram of a spinning method for producing fibers with special-shaped cross sections is shown in figure 2, the method adopts an active heating mode for heat preservation, a slow cooling cavity of the method is cylindrical, the height of the cavity is the same as that of embodiment 1, namely 30mm, the radius of the cavity is 51mm, and the slow cooling cavity is heated by an electric heater 4.
The device is used for spinning the fiber with the ultra-bright special-shaped cross section, the average plate cleaning period is 22 hours, and the comparison with the embodiment 1 shows that the device changes the cylindrical slow cooling chamber, namely the hollow chamber I3, into a rectangular column shape, enlarges the dissipation space of the spinning oligomer, changes the active heating type slow cooling area into a non-heating heat preservation type, reduces the aggregation quantity and the hardness degree of the oligomer on a high-temperature spinneret plate, greatly prolongs the plate cleaning period, and prolongs the plate cleaning period by 45 percent.
Example 2
The spinning method for prolonging the plate cleaning period in the production of the special-shaped section fibers is basically the same as that in embodiment 1 in structure, and is different in that the thickness of a spacer is 2mm, a heat-insulating material filled in a heat-insulating plate is ceramic fibers, the heat-resistant temperature of the heat-insulating plate is 405 ℃, the thickness of the heat-insulating plate is 40mm, the wall thickness of a stainless steel plate is 1.2mm, and the thickness of the heat-insulating plate is 35 mm.
The device is used for spinning the fiber with the ultra-bright special-shaped section, after the temperatures of the heat-insulating plate and the box body are fully balanced, the temperature of the spinneret plate surface is detected, the measured temperature is 263 ℃ and is higher than the lowest temperature 240 ℃ which can be used for normal production, smooth spinning can be realized, the average plate cleaning period is 31 hours, and the plate cleaning period is prolonged by 40 percent.
Example 3
The spinning method for prolonging the plate cleaning period in the production of the special-shaped section fibers is basically the same as that in embodiment 1 in structure, and is different in that the spacer is 3mm in thickness, the heat-insulating material filled in the heat-insulating plate is rock wool, the heat-resistant temperature of the heat-insulating plate is 410 ℃, the thickness of the heat-insulating plate is 50mm, the wall thickness of the stainless steel plate is 1.5mm, and the thickness of the heat-insulating plate is 45 mm.
The device is used for spinning the fiber with the ultra-bright special-shaped section, after the temperatures of the heat-insulating plate and the box body are fully balanced, the temperature of the spinneret plate surface is detected, the detected temperature is 268 ℃ and is higher than the lowest temperature 240 ℃ which can be used for normal production, smooth spinning can be realized, the average plate cleaning period is 30 hours, and the plate cleaning period is prolonged by 35%.
Example 4
The spinning method for prolonging the plate cleaning period in the production of the special-shaped section fibers is basically the same as that in embodiment 1 in structure, and is different in that the thickness of a spacer is 1.5mm, the heat-resistant temperature of a heat-insulating plate filled with a heat-insulating material is 402 ℃, the thickness of the heat-insulating plate is 35mm, the wall thickness of a stainless steel plate is 1.0mm, and the thickness of the heat-insulating plate is 30 mm.
The device is used for spinning the fiber with the ultra-bright special-shaped section, after the temperatures of the heat-insulating plate and the box body are fully balanced, the temperature of the spinneret surface is detected, the detected temperature is 265 ℃ and is higher than the lowest temperature 240 ℃ which can be used for normal production, smooth spinning can be realized, the average plate cleaning period is 34 hours, and the plate cleaning period is prolonged by 54 percent.
Example 5
The spinning method for prolonging the plate cleaning period in production of the special-shaped section fibers is basically the same as that in embodiment 1 in structure, and is different in that only a heat insulation plate is arranged, and no heat insulation plate is superposed below the heat insulation plate.
The device is used for spinning the fiber with the ultra-bright special-shaped section, after the temperatures of the heat-insulating plate and the box body are fully balanced, the temperature of the spinneret surface is detected, the detected temperature is 257 ℃ and is higher than the lowest temperature 240 ℃ which can be used for normal production, smooth spinning can be realized, the average plate cleaning period is 32 hours, the plate cleaning period is prolonged by 15 percent, but the fiber strength and elongation are reduced by 10 percent.
Example 6
The spinning method for prolonging the plate cleaning period in production of the special-shaped section fibers is basically the same as that in embodiment 2 in structure, and is different in that only a heat insulation plate is arranged, and no heat insulation plate is superposed below the heat insulation plate.
The device is used for spinning the fiber with the ultra-bright special-shaped section, after the temperatures of the heat-insulating plate and the box body are fully balanced, the temperature of the spinneret plate surface is detected, the detected temperature is 258 ℃, the temperature is higher than the lowest temperature 240 ℃ capable of being normally produced, smooth spinning can be realized, the average plate cleaning period is 30 hours, the plate cleaning period is prolonged by 35%, but the fiber strength and elongation are reduced by 9%.
Example 7
The spinning method for prolonging the plate cleaning period in production of the special-shaped section fibers is basically the same as that in embodiment 3 in structure, and is different in that only a heat insulation plate is arranged, and no heat insulation plate is superposed below the heat insulation plate.
The device is used for spinning the fiber with the ultra-bright special-shaped section, after the temperatures of the heat-insulating plate and the box body are fully balanced, the temperature of the spinneret surface is detected, the detected temperature is 260 ℃ and is higher than the lowest temperature 240 ℃ which can be used for normal production, smooth spinning can be realized, the average plate cleaning period is 31 hours, the plate cleaning period is prolonged by 40 percent, but the fiber strength and elongation are reduced by 8 percent.
Example 8
The spinning method for prolonging the plate cleaning period in production of the special-shaped section fibers is basically the same as that in embodiment 4 in structure, and is different in that only a heat insulation plate is arranged, and no heat insulation plate is superposed below the heat insulation plate.
The device is used for spinning the fiber with the ultra-bright special-shaped section, after the temperatures of the heat-insulating plate and the box body are fully balanced, the temperature of the spinneret surface is detected, the detected temperature is 261 ℃ and is higher than the lowest temperature 240 ℃ which can be used for normal production, smooth spinning can be realized, the average plate cleaning period is 33 hours, the plate cleaning period is prolonged by 50%, but the fiber strength and elongation are reduced by 8%.
Claims (5)
1. A spinning method for prolonging the plate cleaning period of profiled cross-section fiber production is characterized in that: keeping the longitudinal height unchanged, increasing the cross-sectional area of the slow cooling chamber, and simultaneously keeping the plate surface temperature of the spinneret plate in the slow cooling chamber in a heat insulation mode, so that the plate cleaning period of the profiled-section fiber production is prolonged by 35-55%;
the cross section area of the slow cooling chamber is increased by changing the cross section of the slow cooling chamber from a circle to a rectangle on the premise of keeping a spinneret plate connected with the slow cooling chamber unchanged;
the slow cooling chamber is formed by enclosing a heat insulation plate and spacers, the heat insulation plate is embedded and hung at the bottom of the spinning box body, a hollow chamber I is formed in the heat insulation plate, the spacers are inserted into the hollow chamber I to divide the heat insulation plate into a plurality of slow cooling chambers, and a spinneret plate is arranged in each slow cooling chamber;
the plurality of spinneret plates in the hollow cavity I are circular spinneret plates, the diameters of the plurality of spinneret plates are the same, and the circle centers of the plurality of spinneret plates are positioned on the same straight line and are closely adjacent;
the cross section of the hollow cavity I is rectangular, the side parallel to the connection line of the circle centers of the plurality of spinneret plates is a long side, and the side perpendicular to the long side is a short side;
the length of the long side is 1.2 times of the sum of the diameters of the spinneret plates, and the length of the short side is 1.7 times of the diameter of the spinneret plate;
a heat insulation plate is stacked below the heat insulation plate, the material of the heat insulation plate is the same as that of the heat insulation plate, a hollow cavity II is formed in the heat insulation plate, and the cross sections of the hollow cavity II and the hollow cavity I are the same in shape;
at the position where the hollow chamber II is communicated with the hollow chamber I, two edges of the cross section of the hollow chamber II are respectively superposed with two short edges of the cross section of the hollow chamber I, and the lengths of the two edges are greater than the two short edges.
2. The spinning method for prolonging the plate cleaning period in the production of the profiled-section fibers according to claim 1, wherein the heat insulation plate is a stainless steel plate filled with a heat insulation material capable of resisting temperature of more than 400 ℃, the thickness of the heat insulation plate is 30-50 mm, and the wall thickness of the stainless steel plate is 0.9-1.5 mm.
3. The spinning method for prolonging the plate cleaning period of profiled-section fiber production according to claim 2, wherein the heat insulation material is rock wool or ceramic fiber.
4. The spinning method for prolonging the plate cleaning period of profiled-section fiber production according to claim 3, wherein the thickness of the spacer is 1-3 mm.
5. The spinning method for prolonging the plate cleaning period of profiled-section fiber production according to claim 1, wherein the thickness of the heat insulation plate is 25-45 mm.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB904869A (en) * | 1959-07-28 | 1962-08-29 | Onderzoekings Inst Res | A method for the production of artificial multifilament threads from polyethylene terephthalate, and the products thus obtained |
| CN202297884U (en) * | 2011-09-09 | 2012-07-04 | 中国石油化工股份有限公司 | Spinning assembly for ultra-high strength polyester staple fiber |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4225299A (en) * | 1978-04-04 | 1980-09-30 | Kling-Tecs, Inc. | Apparatus for extruding yarn |
| JP2888901B2 (en) * | 1990-02-28 | 1999-05-10 | 帝人株式会社 | Melt spinning equipment |
| JP3350218B2 (en) * | 1994-05-23 | 2002-11-25 | 帝人ファイバー株式会社 | Melt spinning equipment |
| JP2010037676A (en) * | 2008-08-04 | 2010-02-18 | Teijin Fibers Ltd | Melt-spinning device |
| JP2014145132A (en) * | 2013-01-25 | 2014-08-14 | Tmt Machinery Inc | Spinning and winding device |
| JP6649395B2 (en) * | 2015-03-09 | 2020-02-19 | コリア インスティチュート オブ インダストリアル テクノロジー | Method for producing high-strength synthetic fiber and high-strength synthetic fiber produced therefrom |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB904869A (en) * | 1959-07-28 | 1962-08-29 | Onderzoekings Inst Res | A method for the production of artificial multifilament threads from polyethylene terephthalate, and the products thus obtained |
| CN202297884U (en) * | 2011-09-09 | 2012-07-04 | 中国石油化工股份有限公司 | Spinning assembly for ultra-high strength polyester staple fiber |
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