WO2012108230A1 - 炭素繊維前駆体アクリル系糸条の加圧スチーム処理装置、及びアクリル系糸条の製造方法 - Google Patents
炭素繊維前駆体アクリル系糸条の加圧スチーム処理装置、及びアクリル系糸条の製造方法 Download PDFInfo
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- WO2012108230A1 WO2012108230A1 PCT/JP2012/050777 JP2012050777W WO2012108230A1 WO 2012108230 A1 WO2012108230 A1 WO 2012108230A1 JP 2012050777 W JP2012050777 W JP 2012050777W WO 2012108230 A1 WO2012108230 A1 WO 2012108230A1
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- pressurized steam
- steam processing
- yarn
- processing apparatus
- labyrinth
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- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 title claims abstract description 32
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/14—Containers, e.g. vats
- D06B23/16—Containers, e.g. vats with means for introducing or removing textile materials without modifying container pressure
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F6/18—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
- D02J1/222—Stretching in a gaseous atmosphere or in a fluid bed
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
- D02J13/001—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass in a tube or vessel
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/14—Containers, e.g. vats
- D06B23/18—Sealing arrangements
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/04—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/04—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments
- D06B3/045—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments in a tube or a groove
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/01—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with hydrogen, water or heavy water; with hydrides of metals or complexes thereof; with boranes, diboranes, silanes, disilanes, phosphines, diphosphines, stibines, distibines, arsines, or diarsines or complexes thereof
- D06M11/05—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with hydrogen, water or heavy water; with hydrides of metals or complexes thereof; with boranes, diboranes, silanes, disilanes, phosphines, diphosphines, stibines, distibines, arsines, or diarsines or complexes thereof with water, e.g. steam; with heavy water
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/20—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products
- D01F9/21—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D01F9/22—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyacrylonitriles
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/26—Polymers or copolymers of unsaturated carboxylic acids or derivatives thereof
- D06M2101/28—Acrylonitrile; Methacrylonitrile
Definitions
- the present invention relates to a pressurized steam processing apparatus suitably applied at the time of fiber stretching, and more specifically, suitable for a pressurized steam processing apparatus for stretching yarn in a pressurized steam atmosphere, and more than one in a pressurized steam atmosphere.
- the present invention relates to a pressurized steam processing apparatus capable of collectively treating a plurality of yarns in a batch, and a method of manufacturing an acrylic yarn, in the case of pressure steam treatment of the yarns.
- yarns made of polyacrylonitrile polymers are used as raw yarns, and the yarns are required to be excellent in strength and orientation.
- Such a yarn is produced, for example, by spinning a spinning solution containing a polyacrylonitrile-based polymer into a coagulated yarn, drawing the coagulated yarn in a bath and drying to obtain a yarn to obtain a yarn, It can be obtained by subjecting a yarn to a secondary drawing process under a pressurized steam atmosphere.
- a treatment device For the treatment of yarn in a pressurized steam atmosphere, a treatment device is used, in which yarn is run inside the apparatus and pressurized steam is supplied to the yarn.
- a processing apparatus when a large amount of pressurized steam supplied to the inside of the apparatus leaks from the inlet and the outlet of the yarn to the outside of the apparatus, the pressure, temperature, humidity, etc. inside the apparatus become unstable, and Fuzz and thread breakage may occur.
- a large amount of pressurized steam is required to suppress the influence of pressurized steam leaking out of the apparatus, and energy costs have increased.
- a processing apparatus for suppressing leakage of pressurized steam from the inside of the apparatus there is a pressurized steam processing unit for treating a yarn traveling in a fixed direction with pressurized steam, and two labyrinths extending from before and after the pressurized steam processing unit.
- a pressurized steam processing apparatus provided with a seal portion.
- the labyrinth seal portion is provided with a plurality of labyrinth nozzles consisting of plate pieces extending at right angles from the inner wall surface toward the yarn, and energy when passing through each space (expansion chamber) between those labyrinth nozzles The amount of leakage of pressurized steam is reduced by
- Patent Document 1 Japanese Patent Application Laid-Open No. 2001-140161
- Patent Document 1 includes a pressurized steam processing unit and two labyrinth seal units extending from the front and back of the pressurized steam processing unit, and the respective labyrinth seal units are provided. 80 to 120 stages of labyrinth nozzles are provided, and the ratio (L / P) of the extension length L from the inner wall surface of the labyrinth nozzle to the pitch P between adjacent labyrinth nozzles is 0.3 to 1
- the pressurized steam processing apparatus which is .2 is disclosed.
- the main body constituting the pressurized steam processing portion and the labyrinth seal portion is fixed so as to cover the plate-like members with the outer wall members arranged vertically and horizontally along the upper and lower surfaces of the device main body.
- the pressure steam processing unit and the body constituting the labyrinth seal unit are heated and expanded by the pressurized steam supplied into the apparatus, while the pressure resistance is increased.
- the beam member and the outer wall member of the plate-like member provided for holding are cooled in the temperature difference with the surrounding atmosphere, and the thermal expansion becomes smaller as compared with the main body constituting the pressurized steam processing portion and the labyrinth seal portion. Accordingly, due to the difference in the amount of thermal expansion between the main body forming the pressurized steam processing portion and the labyrinth seal portion, and the prismatic member and the outer wall member, the entire apparatus is warped.
- the leakage of steam from the yarn inlet / outlet is suppressed by defining the number of arrangement of labyrinth nozzles and the interval. It is possible to stabilize the treatment, but it is not possible to reduce the interference between yarns traveling adjacent to each other.
- the width of the yarn running opening may be increased in order to avoid this interference, but if the width is increased, the warping of the pressurized steam processing apparatus due to thermal deformation also increases, and the height of the opening is the center of the opening cross section There is a large difference between the two sides of the opening and the opening. As a result, a part of the opening height can not secure the opening height necessary for passing the yarn, and the yarn may come into contact with the labyrinth nozzle to cause fuzz or yarn breakage.
- the present invention has been made to solve the above-mentioned problems at the same time, and its object is to provide a pressurized steam processing unit and two labyrinth seal units extending from the front and back of the pressurized steam processing unit.
- a pressurized steam processing device for yarns that collectively processes a plurality of yarns traveling in parallel along a traveling path in a sheet shape in a pressurized steam atmosphere, while suppressing energy costs due to leakage of pressurized steam. It is an object of the present invention to provide a pressurized steam processing device for yarn that can prevent thermal deformation of the device and at the same time prevent the occurrence of fuzz and yarn breakage.
- another object of the present invention is to provide a pressurized steam processing unit and a plurality of yarns running in parallel in a sheet along the traveling path, comprising two labyrinth seal units extending from the front and back of the pressurized steam processing unit.
- a yarn pressure steam processing apparatus for treating filaments in a batch and under a pressure steam atmosphere, while suppressing energy costs due to leakage of pressurized steam, surely preventing fuzz and yarn breakage from occurring.
- the pressurized steam processing apparatus of the present invention is a pressurized steam processing apparatus for acrylic yarn comprising a pressurized steam processing unit and a labyrinth seal unit, and the labyrinth seal unit is a pressure steam processing unit of the pressurized steam processing unit.
- An outer wall member having a plate-like member extending toward the bottom plate of the pressurized steam processing apparatus is provided on the lower surface, and the ambient temperature of the pressurized steam processing unit or the labyrinth seal unit is 140 ° C. It is preferable that the temperature difference between any point on the top plate or bottom plate of the pressurized steam processing apparatus and the point on the opposing outer wall member be 30 ° C. or less.
- the outer wall member may be a member having a linear expansion coefficient higher than that of the top plate and the bottom plate.
- a heat conducting member be interposed in a space portion formed between at least the upper surfaces of the pressurized steam processing portion and the labyrinth seal portion and the outer wall member.
- a pressurized steam processing apparatus is a pressurized steam processing apparatus for acrylic yarn comprising a pressurized steam processing unit and a labyrinth seal unit, and the labyrinth seal unit is The pressurized steam processing unit provided on the yarn inlet and the yarn outlet of the pressurized steam processing unit, having the traveling path of the yarn in the horizontal direction, and on the upper surface of the pressurized steam processing apparatus excluding the steam inlet;
- An outer wall member having a plate-like member extending toward a top plate of the apparatus, and a plate-like member extending toward a bottom plate of the pressurized steam processing device on the lower surface of the pressurized steam processing device except a steam inlet
- An outer wall member is provided, and a heat conducting member is interposed in a space formed between at least the top plate of the pressurized steam processing apparatus and the outer wall member provided on the top surface of the top plate.
- the ratio (A2 / A1) of the cross-sectional area A2 of the heat conducting member to the area A1 surrounded by the plate-like member is 5% or more in a cross section having an arbitrary space portion parallel to the top plate preferable.
- the ratio (H / W) of the height H of the rectangular opening formed between the upper and lower opposing labyrinth nozzles to the width W is preferably 1/2000 to 1/60.
- the heat conducting member may be disposed at least one at a right angle to the outer wall member and at a right angle to the opening and / or one or more parallel to the opening.
- the distance between the heat conducting members is preferably 100 mm or more and 500 mm or less.
- the heat conduction member is disposed in a lattice shape in a space formed between the pressurized steam processing portion, the labyrinth seal portion and the outer wall member via a plate-like member.
- An example is shown in which one or more first heat transfer members are disposed at right angles to the pressurized steam processing portion and the labyrinth seal portion and in parallel with the yarn traveling direction, and at the same time, the yarn parallel direction
- One or more second heat transfer members can be disposed in parallel, and when a plurality of heat transfer members are provided, the distance between the heat transfer members is preferably 100 mm or more and 500 mm or less.
- the heat applied by the pressurized steam used to process the yarn to the pressurized steam processing portion and the member forming the labyrinth seal portion is efficiently transmitted to the outer wall member, and the thermal deformation of the pressurized steam processing device Can be effectively reduced.
- heat conducting member one or at right angles to the outer wall member and to the top plate and bottom plate of the pressurized steam processing portion and the labyrinth seal portion or obliquely to the opening portion.
- a plurality of third heat transfer members can also be arranged.
- one or more heat transfer members may be disposed at right angles to the outer wall member and at right angles and oblique to the opening.
- the heating means for example, heater
- the heating means which heats the said outer wall member.
- a means for detecting the temperature of the outer wall member by the heating means and a temperature control means for controlling the heating temperature of the heating means based on the detection result of the temperature detection means.
- a pressurized steam processing apparatus is a pressurized steam processing apparatus for acrylic yarn comprising a pressurized steam processing unit and a labyrinth seal unit, wherein the labyrinth seal unit is The pressurized steam processing unit provided on the yarn inlet and the yarn outlet of the pressurized steam processing unit, having the traveling path of the yarn in the horizontal direction, and on the upper surface of the pressurized steam processing apparatus excluding the steam inlet;
- An outer wall member having a plate-like member extending toward a top plate of the apparatus, and a plate-like member extending toward a bottom plate of the pressurized steam processing device on the lower surface of the pressurized steam processing device except a steam inlet
- An outer wall member is provided, and is characterized by comprising heating means for heating the outer wall member.
- the yarn can be subjected to pressure steam processing to suppress the occurrence of fuzz and yarn breakage and to obtain high quality yarn.
- the heat transferred from the pressurized steam used to treat the strip to the members forming the pressurized steam processing portion and the labyrinth seal portion is efficiently conducted to the outer wall member to reduce the thermal deformation of the pressurized steam processing apparatus.
- the external wall member including the plate-like member is fixed so as to cover the apparatus main body, thereby securing the strength of the entire apparatus and using the external wall member.
- FIG. 1 It is a plane sectional view showing a schematic structure of a pressurization steam processing device of the present invention. It is a longitudinal cross-sectional view which shows arrangement
- FIG. It is a partial expanded sectional view in the labyrinth nozzle of the pressurization steam processing apparatus shown in FIG.
- FIG. 7 It is a longitudinal cross-sectional view which shows the state in process of pressurization steam processing of the component part of the labyrinth nozzle of a labyrinth seal part shown in FIG. It is a plane sectional view showing arrangement of a heat conduction member inside of a plate-shaped member of a pressurization steam processing unit in Example 7. It is a plane sectional view showing arrangement of a heat conduction member inside a plate-shaped member of a pressurization steam processing unit in Example 9. It is a plane sectional view showing arrangement of a heat conduction member inside of a plate-shaped member of a pressurization steam processing unit in Example 8.
- FIG. 24 is a cross-sectional view showing the arrangement of heat transfer members in the inside of a plate-like member of a pressurized steam processing apparatus in Embodiment 11.
- FIG. 21 is a plan cross-sectional view showing the arrangement of the heat conducting member inside the plate-like member of the pressurized steam processing device in Example 12. It is a plane sectional view showing arrangement of a heat conduction member inside a plate-shaped member of a pressurization steam processing unit used for Example 6.
- FIG. 21 is an explanatory view of an internal configuration of a pressurized steam processing apparatus used in Example 14.
- FIG. 25 is a longitudinal sectional view of a pressurized steam processing apparatus 102 used in Example 25.
- FIG. 21 is an explanatory view of an internal configuration of a pressurized steam processing apparatus 104 used in a sixteenth embodiment. It is a longitudinal cross-sectional view of the pressurized steam processing apparatus 105 used in Examples 21 and 22.
- FIG. 18 is an explanatory view of the internal configuration of a pressurized steam processing apparatus 107 used in Example 17.
- FIG. 24 is a longitudinal sectional view of a pressurized steam processing apparatus 108 used in Example 23.
- FIG. 21 is an explanatory view of the internal configuration of a pressurized steam processing apparatus 110 used in Example 18.
- FIG. 24 is a longitudinal sectional view of a pressurized steam processing apparatus 111 used in Example 24.
- FIG. 21 is an explanatory view of the internal configuration of a pressurized steam processing apparatus 113 used in Example 20.
- FIG. 26 is a vertical cross-sectional view of a pressurized steam processing apparatus 114 used in Example 26.
- FIG. 1: and FIG. 2 are the plane sectional view and longitudinal cross-sectional view which showed an example of 1st Embodiment of the pressurized steam processing apparatus of the carbon fiber precursor acrylic yarn which concerns on this invention.
- a pressurized steam processing apparatus (hereinafter referred to as a processing apparatus) 1 is a process for treating a carbon fiber precursor acrylic yarn (hereinafter simply referred to as a yarn) Z traveling in a fixed direction with pressurized steam.
- the pressure steam processing unit 10 and two labyrinth seal units 20 extending to the inlet and the outlet (front and rear in the yarn traveling direction) of the yarn of the pressure steam processing unit 10 are provided.
- the configurations of the pressurized steam processing unit 10 and the labyrinth seal unit 20 are substantially the same as the pressurized steam processing apparatus disclosed in Patent Document 1 above. Therefore, in the following description, the specific configurations and the detailed description of the pressurized steam processing unit 10 and the labyrinth seal unit 20 are left to the description of Patent Document 1 above.
- the pressurized steam processing unit 10 and the labyrinth seal unit 20 have a top plate 11a and a bottom plate 11b made of a single flat plate member at the upper and lower sides, and the pressurized steam processing unit 10 is the top plate 11a.
- the labyrinth seal portion 20 is provided at the center of the bottom plate 11 b and is provided adjacent to the front and rear of the pressurized steam processing portion 10.
- the pressurized steam processing unit 10 provided at the central portion of the top plate 11a and the bottom plate 11b is a porous plate made of two porous plate members disposed one over the other across the yarn traveling path 18 along which the yarn Z travels. It has a plate 14.
- Pressurization chambers 16 and 17 are formed between the top plate 11 a and the bottom plate 11 b and the porous plates 14.
- the pressurizing chamber 16 has upper and lower pressurized steam inlets 12 for supplying steam from the outside.
- the pressurized steam inlets 12 are respectively formed above and below the center of the pressurized steam processing unit 10.
- the pressurized steam inlet 12 can also be formed either up or down.
- the material which comprises the pressurization steam processing part 10 should just be a material which has mechanical strength enough to endure the pressure of pressurization steam.
- stainless steel having corrosion resistance and steel materials coated with rust proofing may be mentioned.
- the labyrinth seal portion 20 has a plurality of labyrinth nozzles 24 each consisting of a plate piece extending perpendicularly to the direction approaching each other from the inner wall surface 22 of the top plate 11 a and the bottom plate 11 b toward the yarn Z.
- an opening 26 which is a yarn traveling path inside the labyrinth seal portion 20 is formed, and an expansion chamber 28 is formed between the adjacent labyrinth nozzles 24.
- a yarn inlet 30 for introducing the yarn Z is formed in the first labyrinth seal portion 31 on the primary (rear) side of the pressurized steam processing unit 10, and the secondary of the pressurized steam processing unit 10
- the second labyrinth seal portion 33 on the part) side is formed with a yarn outlet 32 from which the yarn Z is led out.
- the material of the plate constituting the labyrinth nozzle 24 is not particularly limited, but it is corrosion resistant and hard in stainless steel, titanium, titanium alloy or steel material because it can reduce damage to the yarn when it contacts.
- One that has been subjected to chromium plating treatment is mentioned.
- the labyrinth nozzle 24 is formed of an elongated plate, and is formed to extend at right angles from the inner wall surface 22 of the top plate 11a and the bottom plate 11b toward the yarn Z traveling through the opening 26 of the labyrinth seal portion 20.
- the shape of the labyrinth nozzle 24 is not particularly limited as long as it can reduce the amount of leakage of pressurized steam, but is preferably a rectangular frame-shaped plate.
- the labyrinth nozzle 24 may extend from all the inner wall surfaces 22 in the entire area of the labyrinth seal portion 20, or may extend from the inner wall surface 22 excluding a part of the area. That is, as shown in FIG. 3, from the inner wall surface 22 of the top plate 11 a and the bottom plate 11 b over the entire area of the labyrinth seal portion 20, the labyrinth nozzle 24 integrally travels in the labyrinth seal portion 20. It may be extended toward the end.
- a pair of upper and lower labyrinth nozzles 24 facing toward the yarn Z traveling in the opening 26 of the labyrinth seal portion 20 is extended from the respective inner wall surfaces 22 facing up and down, and the pair of labyrinth nozzles
- a rectangular opening 26 may be formed by the space 24 and the left and right inner wall surfaces 22.
- the ratio (L / P) of the extension length L (FIG. 3) from each inner wall surface 22 of the top plate 11a and the bottom plate 11b in the labyrinth nozzle 24 to the pitch P (FIG. 3) between the adjacent labyrinth nozzles 24 is Although less than 0.3 is preferable, it is not particularly limited. Moreover, although it is preferable that extending length L of the labyrinth nozzle 24 from each inner wall surface 22 of the top plate 11a and the bottom plate 11b is 3 mm or more, it is not specifically limited.
- the pitch P between adjacent labyrinth nozzles 24 is preferably 16 to 29 mm, but is not particularly limited. Although it is preferable that thickness a (FIG. 3) of the board piece which comprises the labyrinth nozzle 24 shall be 3 mm or less, it is not specifically limited. The number of forming stages of the labyrinth nozzle 24 is preferably 20 to 80 but is not particularly limited.
- the shape of the labyrinth nozzle 24 is not limited to the flat plate illustrated in FIGS.
- the opening 26 formed by the labyrinth nozzle 24 is preferably formed in a horizontally extending rectangular shape as shown in FIG. If the opening 26 is rectangular, it is easy to keep the yarn Z traveling in the processing apparatus 1 flat and passing it, and the pressurized steam blown out in the pressurized steam processing unit 10 is the surface of the yarn Z It is easy to get in, and it can promote the penetration and reach to the inside. For this reason, it becomes easy to heat the yarn Z uniformly uniformly in a short time by pressurized steam.
- the opening 26 is formed at the center in the height direction of the labyrinth seal portion 20. This makes it easy to make the traveling of the yarn Z unstable due to the difference in the flow of the pressurized steam flow in the upper and lower regions separated by the yarn Z traveling in the labyrinth seal portion 20 of the expansion chamber 28. Can be prevented.
- the ratio (H / W) (FIG. 4) of the height H (the distance in the vertical direction between the upper and lower labyrinth nozzles) of the rectangular opening 26 of the labyrinth nozzle 24 (FIG. 4) is 1/2000 to It is preferably 1/60. If the ratio (H / W) is 1/2000 or more, interference between yarns Z traveling adjacent to each other is reduced particularly in multi-spindle processing in which a plurality of yarns Z are run, and damage caused thereby And mixed fiber can be easily suppressed, and the generation of fuzz and yarn breakage in the yarn Z can be easily suppressed. In addition, when the ratio (H / W) is 1/60 or less, it is easy to achieve both of keeping the yarn Z flat and reducing the leakage amount of pressurized steam.
- the processing device 1 can be divided into two parts, the upper portion and the lower portion of the yarn Z which travels the inside of the device, since it is easy to pass the yarn Z into the device. Is preferred. Thereby, the threading operation can be easily performed in a short time, particularly when stretching processing is simultaneously performed collectively in a pressurized steam atmosphere while running a plurality of yarns Z in parallel in the processing apparatus 1 .
- the opening and closing mechanism of the divided apparatus main bodies is not particularly limited.
- a mechanism which connects the divided apparatus main bodies with a hinge and opens and closes can be adopted.
- a method may be employed in which the upper apparatus main body portion to be divided is lifted up and closed.
- a plate-like member 50 and an outer wall member 40 surrounded by a plate material are provided so as to cover the constituent members constituting the pressurized steam processing unit 10 and the labyrinth seal unit 20 of the processing apparatus 1 shown in FIGS. There is.
- the joint surfaces of the plate member 50 and the outer wall member 40 are all joined by welding.
- the plate-like member 50 and the outer wall member 40 reduce the deformation of the device due to the pressure exerted by the pressurized steam used to process the yarn Z on the members forming the pressurized steam processing unit 10 and the labyrinth seal unit 20.
- the height H of the uniform rectangular opening 26 can be obtained.
- the pressure steam processing unit 10 and the labyrinth seal unit are in a state where the temperature of the labyrinth seal unit 20 is 120 ° C. or more and 160 ° C. or less (in particular, the atmosphere temperature of the labyrinth seal unit 20 is 140 ° C.)
- the ⁇ H can be reduced to 0.5 mm or less, whereby pressure is applied at the central portion and the end portion in the width direction of the rectangular opening 26. It is less likely to cause a difference in the steam flow, and uniform heat is given to the fiber bundle, which makes it easy to obtain a fiber bundle of uniform quality. In that respect, it is more preferable to set ⁇ H to 0.25 mm or less.
- the temperatures of the pressurized steam processing unit 10 and the labyrinth seal unit 20 are 100 ° C. or more and 160 ° C. or less (in particular, the atmospheric temperature of the pressurized steam processing unit 10 and the labyrinth seal unit 20 is 140 ° C.)
- the temperature difference between any point of the top plate 11a and the bottom plate 11b of the pressurized steam processing unit 10 and the labyrinth seal unit 20 and the point of the outer wall member 40 facing the top plate 11a and the bottom plate 11b is 30 ° C. or less It is preferable because warpage due to thermal expansion can be suppressed.
- the temperature difference is more preferably 25 ° C. or less, and more preferably 20 ° C. or less.
- the outer wall member 40 is a member of the top plate 11a and the bottom plate 11b in order to suppress the difference in thermal expansion and suppress warpage. It is preferable to use a member having a linear expansion coefficient higher than the linear expansion coefficient. What kind of member having a different linear expansion coefficient may be appropriately selected depending on the temperature difference generated between the top plate 11 a or the bottom plate 11 b and the outer wall member 40.
- heat conducting members 44 and 46 are provided in the inside of the plate member 50 between the members forming the pressurized steam processing unit 10 and the labyrinth seal unit 20 and the outer wall member 40.
- the material of the heat conducting members 44 and 46 is preferably a material having a thermal conductivity of 16 W / (m ⁇ K) or more, and steel, stainless steel, aluminum alloy, etc. can be used, but is particularly limited. I will not.
- the heat conduction members 44, 46 By the effect of heat conduction by the heat conduction members 44, 46, the temperature difference between the pressure steam processing unit 10, the constituent members constituting the labyrinth seal unit 20 and the outer wall member 40 is reduced, and the warp of the device is reduced.
- the uniform height H of the opening 26 is maintained, and the difference ⁇ H between the central height H1 and the end height H2 in the width direction of the opening 26 becomes smaller.
- the heat conducting members 44 and 46 provided between the constituent members (the top plate 11 a and the bottom plate 11 b) constituting the pressurized steam processing unit 10 and the labyrinth seal unit 20 and the outer wall member 40 are optional parallel to the outer wall member 40.
- the ratio (A2 / A1) of the cross-sectional area A2 of the heat conducting member to the area A1 surrounded by the plate-like member 50 is 5% or more with respect to the cross section.
- the ratio (A2 / A1) is 33% or less.
- the heat conducting member is vertically protruded from the top plate 11 a and the bottom plate 11 b with respect to the top plate 11 a and the bottom plate 11 b of the pressurized steam processing unit 10 and the labyrinth seal unit 20.
- the heat conducting members (symbols 44 and 46 in FIGS. 1 and 2) according to the illustrated example have a rib shape, and a plurality of heat conducting members (parallel to the yarn running direction and the yarn parallel direction) are arranged in a grid shape It is not limited.
- the heat conducting member 44 may be disposed one or more in parallel to the yarn traveling direction with respect to the top plate 11a and the bottom plate 11b constituting the pressurized steam processing unit 10 and the labyrinth seal unit 20 (FIG.
- one or more heat conducting members 46 may be disposed in parallel with the yarn parallel direction (see FIGS. 8 and 9). Furthermore, as shown in FIG. 10, a plurality of heat conducting members 48 can be disposed obliquely to the yarn traveling direction. Furthermore, as shown in FIG. 11, a plurality of heat conducting members 44, 46 are disposed in parallel with the yarn running direction and the yarn parallel direction, respectively, and the heat conducting members 48 are disposed obliquely in the yarn running direction. Can.
- the heat conducting members 44 and 46 inside the plate-like member 50 in parallel with the yarn running direction and the yarn parallel direction, respectively, the amount of thermal expansion of the components constituting the pressurized steam processing unit 10 and the labyrinth seal unit 20 Also, the difference in the amount of thermal expansion of the outer wall member 40 is reduced, and the warpage of the device can be reduced, so that the uniform height H of the opening 26 can be obtained.
- the distance between the heat conducting members 44 and 46 disposed in parallel to the yarn running direction and the yarn parallel direction is 100 mm or more and 500 mm or less. If the distance between the heat conducting members 44 and 46 is 500 mm or less, the outer wall member is heat applied to the components of the pressurized steam processing unit 10 and the labyrinth seal unit 20 by the pressurized steam used to process the yarn Z As a result, the thermal deformation of the pressurized steam processing apparatus can be reduced. Furthermore, if the heat conduction member 48 disposed diagonally is added, the heat is uniformly transmitted to the outer wall member 40, so that the thermal deformation of the pressurized steam processing apparatus can be further reduced.
- the distance between the heat conducting members 44 and 46 is 100 mm or more, the amount of structural material used can be minimized, and the enlargement of the opening / closing mechanism accompanying the weight increase of the device itself can be suppressed. It is possible to suppress the increase in the device cost.
- a heat insulating material is enclosed in a space formed between the plate member 50 and the pressurized steam processing unit 10 and the labyrinth seal unit 20 in order to suppress heat radiation from the plate member 50 and the outer wall member 40 to the atmosphere. It is preferable to do. Although glass wool, rock wool, etc. can be used as a heat insulating material to enclose, it is not specifically limited. By the presence of the heat insulating material, the thermal efficiency inside the pressurized steam processing unit 10 and the labyrinth seal unit 20 can be improved, and at the same time, the heat radiation from the plate member 50 and the outer wall member 40 to the atmosphere is efficiently suppressed.
- the material of the plate-like member 50 and the outer wall member 40 is not particularly limited as long as the material has mechanical strength sufficient to suppress the pressure by the pressurized steam. It is possible to use a rustproofed steel or stainless steel, a special invar alloy having a low linear expansion coefficient, or the like.
- the material of the heat conducting members 44, 46, 48 is not particularly limited as long as the material has mechanical strength sufficient to suppress the pressure by the pressurized steam and the heat conductivity is high. It is possible to use a rustproofed steel or stainless steel, a special invar alloy having a low linear expansion coefficient, or the like.
- FIG. 14 is a longitudinal sectional view of the processing apparatus 101 according to the second embodiment.
- parts and members having the same configurations as those of the pressurized steam processing apparatus 1 according to the first embodiment described above are denoted by the same reference numerals, and the detailed description will be made. It shall be omitted.
- the pressurized steam processing apparatus 101 shown in FIG. 14 includes a pressurized steam processing unit 10 that processes, with pressurized steam, a large number of sheet-like yarns Z traveling in a fixed direction, and a thread running of the pressurized steam processing unit 10. There are provided primary and secondary labyrinth seal portions 20a and 20b disposed adjacent to each other in the front and back direction.
- the opening / closing mechanism of the divided device main portions 61 and 62 is not particularly limited.
- the divided device main portions 61 and 62 are connected by a hinge A mechanism for opening and closing can be employed.
- a method of lifting the portion of the upper device main body 61 to be divided and opening and closing may be employed.
- a plate-shaped upper and lower frame member (plate-like member) 50 is surrounded along the upper and lower outer peripheral surfaces so as to cover the apparatus body constituting the pressurized steam processing unit 10 and the labyrinth seal unit 20 of the processing apparatus 101.
- prismatic members (heat conduction members) 44 and 46 are similarly assembled in a grid shape.
- outer wall members 40A and 40B are fixed to the upper and lower outer side surfaces of the upper and lower frame members 50 and the prismatic members 44 and 46, respectively.
- the same material or different materials may be used for the prismatic members 44, 46, 48 excellent in thermal conductivity disposed on the upper and lower and left and right outer surfaces of the apparatus main body.
- the same raw material or a different raw material can be combined and used also about the prismatic member distribute
- a heating means is disposed on the upper and lower outer wall members 40A and 40B.
- the steam heater 52 is used as the heating means, but there is no particular limitation on the heating means, and it is a method capable of causing the member to be heated to reach a desired temperature. Just do it.
- a sheathed heater an aluminum cast heater, a brass cast heater, a rubber heater, or the like may be employed.
- the space between the heater 52 and the processing device 101 may be filled with thermo cement or the like.
- the heating means is distribute
- the arrangement is not particularly limited as long as the arrangement is made.
- the heating means is disposed inside the upper and lower outer wall members 40A and 40B.
- the heating means can be disposed only on the upper outer wall member 40A on the upper side of the device body among the upper and lower outer wall members 40A and 40B, or only on the lower outer wall member 40B on the lower side of the device body.
- heating means other than pressurized steam By forming heating means other than pressurized steam to these pressurized steam processing devices, temperature decrease due to heat radiation of the upper and lower outer wall members 40A and 40B can be compensated, so that the entire device is thermally expanded uniformly, and as a result, It is possible to reduce the unevenness due to the fluctuation of the height H of the opening 26 formed by the labyrinth nozzle 24.
- the heating temperature of the upper and lower outer wall members 40A and 40B by the heating means is not particularly limited, but the temperature of steam supplied into the pressurized steam processing unit 10, the width W of the opening 26, the yarn Z of the pressurized steam processing unit 10 It is preferable to select the optimum temperature at which the desired opening height H can be secured, based on the total length in the traveling direction and the total length of the primary and secondary labyrinth seal portions 20a and 20b. Alternatively, a method may be used in which the distribution of the heating temperature of the member to be heated by the heating means is all constant, or a method of decreasing the temperature only partially or continuously changing according to the temperature of steam in the labyrinth seal portion 20. You may adopt the method of making it.
- a temperature control device for controlling the temperature of a required portion in the labyrinth seal unit 20 to a desired temperature in response to a detection signal from the temperature detection device is installed outside the processing device 101.
- a temperature detection device for detecting the heating temperature of the member to be heated is installed. It is preferable that the installation position of this temperature detection device is located at the upper and lower outer wall members 40A and 40B and can directly measure the temperature of the device body. Therefore, in the present embodiment, the temperature detection device is installed at one or a plurality of locations in the labyrinth seal portion 20.
- a method of detecting the heating temperature by the heating means for example, although a thermocouple is often used, it is not limited to this, and there is no particular limitation as long as it can accurately detect the temperature in a desired temperature range.
- the processing apparatuses 1 and 101 of the present invention are not limited to the processing apparatuses 1 and 101 illustrated in FIGS. 1 to 3 and 14.
- the processing apparatus 1, 101 in the illustrated example is an apparatus for traveling the yarn Z in the horizontal direction, it may be a pressurized steam processing apparatus for traveling the yarn Z in the vertical direction.
- the yarn Z may be appropriately selected according to the application, and, for example, a spinning stock solution containing a polyacrylonitrile-based polymer is spun, and it is drawn in a bath to produce carbon fibers such as dried and densified yarn Yarns used in
- a spinning stock solution containing a polyacrylonitrile-based polymer is spun into coagulated yarn, and the coagulated yarn is drawn in a bath and dried to be compacted to be a yarn composed of carbon fiber precursor fibers.
- the yarn is subjected to secondary drawing in a pressurized steam atmosphere to obtain a yarn Z of a polyacrylonitrile-based fiber bundle consisting of multifilaments.
- the processing apparatus 1, 101 according to the present invention is not particularly limited in the type and processing process of the yarn Z of fibers made of the polyacrylonitrile-based polymer to be applied, but it is intended to obtain fibers with fineness and highly oriented fibers. It can be suitably used as a stretch processing apparatus and a stretch processing method in cases where high spinning speeds are required. In particular, it can be used suitably for the drawing process in the production of polyacrylonitrile-based polymer fibers for acrylic fibers and carbon fibers.
- the temperature difference ⁇ T between an arbitrary point on the top plate 11a and the bottom plate 11b of the pressurized steam processing unit 10 and the labyrinth seal unit 20 and the point on the opposing outer wall member 40 is evaluated at a predetermined position and the maximum temperature difference It was calculated ⁇ T M.
- height unevenness in the width direction of the height at the opening 26 of Examples 15 to 26 is an opening between the upper and lower labyrinth nozzles of the pressure steam processing apparatus 101 after the end of stretching of the yarn.
- DMAc dimethylacetamide
- a stock solution of spinning solution is prepared by dissolving it at a concentration of 20 mass%, viscosity of 50 Pa ⁇ s, and a temperature of 60 ° C.), and the stock solution of spinning solution is passed through a spinneret with 12000 holes and has a concentration of 70 mass% and a solution temperature of 35 ° C. After being discharged inside, washed with water, it was drawn three times in a hot water bath and dried at 135 ° C. to obtain a densified yarn Z.
- Example 1 In the processing apparatus 1 illustrated in FIGS. 1 and 2, the total length X of the processing apparatus 1 is 4000 mm, the total length in the traveling direction of the yarn Z of the pressurized steam processing unit 10 is 1000 mm, and the yarn Z of the labyrinth seal unit 20 is traveled.
- the total length in the direction is 1500 mm
- the width Y of the processing apparatus is 1050 mm
- the height H of the rectangular opening 26 is 2 mm
- the width W of the opening 26 is 1000 mm.
- the total length X of the processing apparatus 1 is the sum of the total lengths in the traveling direction of the yarns of the pressurized steam processing unit 10 and the two first and second labyrinth seal units 20.
- the total length of the labyrinth seal portion 20 corresponds to the length of each of the first and second labyrinth seal portions 20 on one side, and the first and second labyrinth seal portions 20 having this total length are the pressure steam processing portion There are two before and after ten.
- the plate member 50 is a plate having a plate thickness of 25 mm
- the outer wall member 40 is a plate having a plate thickness of 21 mm
- the constituent members of the pressure steam processing unit 10 and the labyrinth seal unit 20 are a plate having a plate thickness of 25 mm.
- the height of the processing apparatus surrounded by the constituent members of the pressurized steam processing unit 10 and the labyrinth seal unit 20, the plate member 50 and the outer wall member 40 was 300 mm.
- the ratio (A2 / A1) of the cross-sectional area A2 of the heat conducting member to the area A1 surrounded by the plate-like member 50 in this processing apparatus is set to 7.5%.
- the labyrinth nozzle 24 and the porous plate 14 were disregarded for the simplification of calculation.
- the pressure steam processing unit 10 has a pressure of 300 KPaG and a temperature of 142 ° C., and the pressure applied to the inside of the components of the labyrinth seal unit 20 is measured from the first and second labyrinth seal portions 31 and 33 to the yarn inlet 30 And the yarn outlet 32 is lowered.
- the temperature applied to the inside of the member forming the labyrinth seal portion 20 was the saturated vapor temperature at the pressure that decreases proportionally.
- the pressure of the first and second labyrinth seal portions 31 and 33 is proportionally decreased so that the pressure at the yarn inlet 30 and the yarn outlet 32 becomes 0 KPaG.
- the temperature of the first and second labyrinth seal portions 31 and 33 is set to 142 ° C.
- the temperature of the yarn inlet 30 and the yarn outlet 32 is set to 100 ° C.
- the heat transfer coefficient between the inner surface of the plate member 50, the surface of the heat conduction member 44 parallel to the yarn traveling direction, the surface of the heat conduction member 46 parallel to the yarn parallel direction, and the space is 3 W / (m (2 / K), the temperature of the space is 80 ° C., the heat transfer coefficient between the outer surface of the plate member 50 and the space is 10 W / (m 2 / K), and the temperature of the space is 60 ° C. did.
- W is the width of the rectangular opening of the labyrinth nozzle.
- Example 2 With regard to the thickness and number of the heat conducting member 44 and the heat conducting member 46 of the processing apparatus 1 and the arbitrary cross section parallel to the outer wall member 40, the cross sectional area A2 of the heat conducting member with respect to the area A1 surrounded by the plate member 50 Numerical analysis was performed using the same conditions as in Example 1 except that the ratio (A2 / A1) was changed as shown in Table 2. The obtained results are also shown in Table 3.
- Example 6 The entire space formed between the plate member 50 and the top plate 11a and the bottom plate 11b of the processing apparatus 1 shown by thin hatched hatching in FIG. 12 is filled with a heat conducting member, ie surrounded by the plate member 50 Numerical analysis was performed using the same conditions as in Example 1 except that the ratio (A2 / A1) of the cross-sectional area A2 of the heat conducting member to the area A1 was 100%. The obtained results are also shown in Table 3.
- Example 7 As illustrated in FIGS. 6 and 8, only one of the heat conducting member 44 and the heat conducting member 46 is used as the heat conducting member inside the plate-like member 50, and the thickness is changed as shown in Table 2. Numerical analysis was performed using the same conditions as Example 1 except for the above. The obtained results are also shown in Table 3.
- Example 9 As illustrated in FIGS. 7 and 9, only one of the heat conducting member 44 and the heat conducting member 46 is used as the heat conducting member inside the plate-like member 50, and the thickness and the member spacing are as shown in Table 2. Numerical analysis was performed using the same conditions as in Example 1 except for the change. The obtained results are also shown in Table 3.
- Example 11 As exemplified in FIG. 10, Example 1 was used except that only the heat conduction member 48 disposed obliquely as the heat conduction member inside the plate-like member 50 was used, and the thickness and the member spacing were set as shown in Table 2. Numerical analysis was performed using the same conditions as in. The obtained results are also shown in Table 3.
- Example 12 As illustrated in FIG. 11, the heat conducting member 44, the heat conducting member 46 and the heat conducting member 48 are used as the heat conducting members inside the plate-like member 50, and the thickness and the member spacing are changed as shown in Table 2 Numerical analysis was performed using the same conditions as in Example 1. The obtained results are also shown in Table 3.
- Example 13 Numerical analysis was performed using the same conditions as in Example 1 except that the total length X of the processing apparatus 1 was changed as shown in Table 2. The obtained results are also shown in Table 3.
- the total length in the running direction of the yarn Z of the pressurized steam processing portion is 1000 mm
- the total length in the traveling direction of the yarn of the labyrinth seal portion is 1500 mm
- the length of the labyrinth seal section is two, and two labyrinth seal sections of this full length are provided before and after the pressurized steam processing section.
- the extension length from the inner wall surface of the labyrinth nozzle L is 5 mm
- pitch P between adjacent labyrinth nozzles is 20 mm
- ratio L / P of extension length L to pitch P is 0.25
- number of labyrinth nozzle stages is 60
- height H of opening is 2 mm
- a processing apparatus 104 was used in which the width W of the opening was 1000 mm, and a flat heater 52 was fixed on one surface of each of the upper and lower outer wall members on the front surface side.
- a K-type thermocouple was attached to the surface of the outer wall member opposite to the heating surface.
- the yarn Z obtained in Production Example 1 was introduced from the yarn inlet with five weights using the processing device 104, and pressurized steam treatment was performed.
- the pressure in the pressure chamber was 300 kPa, and the pressure and temperature of pressurized steam supplied to the heater 52 were controlled so that the temperature of the upper and lower outer wall members would be 142 ° C.
- Table 4 shows the evaluation frequency of fluff generation and height spots in the widthwise direction of the opening after the pressure steam drawing while drawing by the pressure steam processing apparatus 104.
- Examples 16 to 20 As illustrated in FIGS. 16, 18, 20, 14, 22, the example is the embodiment except that the prismatic members 44, 46, 48 of the processing devices 104, 107, 110, 101, 113 are changed as shown in Table 4
- the pressure steam treatment of the yarn Z was performed in the same manner as 15.
- Example 21 As illustrated in FIG. 17, as a heating unit of a processing apparatus other than the pressurized steam processing unit, an upper outer wall member using a processing device 105 in which a flat heater 52 is adhered to only the upper outer wall member 40A.
- the pressurized steam treatment of the yarn Z was performed in the same manner as in Example 15 except that the temperature of 40A was changed as shown in Table 4.
- Examples 22 to 26 As illustrated in FIGS. 17, 19, 21, 15 and 23, the example is the embodiment except that the prismatic members 44, 46 and 48 of the processing devices 105, 108, 111, 102 and 114 are changed as shown in Table 4 The pressure steam treatment of the yarn Z was performed in the same manner as in No. 21.
- Example 4 the temperature of the outer wall member 40A is shown using a processing device having the same structure as the processing devices 101, 104, 107, 110, 113 except that the heaters for heating the upper and lower outer wall members are not provided.
- the pressurized steam treatment of the yarn Z was performed in the same manner as in Example 15 except for the change.
- the condition of the fluff after the pressure steam drawing was observed during the drawing with the pressure steam processing apparatus, and the generation frequency of the fluff was evaluated, and the height spots in the width direction at the opening 26 are shown. Shown in 4.
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Abstract
Description
図1及び図2は、本発明に係る炭素繊維前駆体アクリル系糸条の加圧スチーム処理装置の第1の実施形態の一例を示した平断面図と縦断面図である。
ラビリンスノズル24を構成する板片の厚みa(図3)は、3mm以下とすることが好ましいが、特に限定されない。
ラビリンスノズル24の形成段数は、20~80段であることが好ましいが、特に限定されない。
アクリロニトリル(AN)、メチルアクリレート(MA)、及びメタクリル酸(MAA)をモル比AN/MA/MAA=96/2/2で共重合させたポリアクリロニトリル系重合体をジメチルアセトアミド(DMAc)溶液(ポリマー濃度20質量%、粘度50Pa・s、温度60℃)に溶解させて紡糸原液を調製し、該紡糸原液をホール数12000の紡糸口金を通して、濃度が70質量%、液温が35℃のDMAc水溶液中に吐出して水洗後、熱水浴中で3倍に延伸し、135℃で乾燥して、緻密化した糸条Zを得た。
図1及び図2に例示した処理装置1において、処理装置1の全長Xが4000mm、加圧スチーム処理部10の糸条Zの走行方向の全長が1000mm、ラビリンスシール部20の糸条Zの走行方向の全長が1500mm、処理装置の幅Yが1050mm、矩形状開口部26の高さHが2mm、開口部26の幅Wが1000mmとした。ただし、処理装置1の全長Xとは、加圧スチーム処理部10と2つの第1及び第2のラビリンスシール部20の糸条の走行方向の全長の和である。すなわち、ラビリンスシール部20の全長は片側の第1及び第2のラビリンスシール部20のそれぞれの長さのことであり、この全長をもつ第1及び第2ラビリンスシール部20が加圧スチーム処理部10の前後に2つ設けられている。
処理装置1の上記熱伝導部材44及び上記熱伝導部材46の厚み、数、外壁部材40と平行な任意の断面に関して、板状部材50により囲まれた面積A1に対する熱伝導部材の断面積A2の比率(A2/A1)を表2に示すように変更した以外は、実施例1と同様の条件を用い数値解析を行った。得られた結果を同じく表3に示す。
図12に細い斜線ハッチで示した処理装置1の板状部材50と天板11a及び底板11bとの間に形成される空間部全域を熱伝導部材で充填したこと、すなわち板状部材50により囲まれた前記面積A1に対する熱伝導部材の断面積A2の比率(A2/A1)を100%としたこと以外は、実施例1と同様な条件を用い数値解析を行った。得られた結果を同じく表3に示す。
図6、図8に例示したように、板状部材50内部の熱伝導部材として、熱伝導部材44、もしくは熱伝導部材46のどちらか一方のみを用い、厚みを表2に示すように変更した以外は、実施例1と同様の条件を用い数値解析を行った。得られた結果を同じく表3に示す。
図7、図9に例示したように、板状部材50内部の熱伝導部材として熱伝導部材44、もしくは熱伝導部材46のどちらか一方のみを用い、厚み及び部材間隔を表2に示すように変更した以外は、実施例1と同様の条件を用い数値解析を行った。得られた結果を同じく表3に示す。
図10に例示したように、板状部材50内部の熱伝導部材として斜めに配した熱伝導部材48のみを用い、その厚み及び部材間隔を表2に示すように設定した以外は、実施例1と同様の条件を用い数値解析を行った。得られた結果を同じく表3に示す。
図11に例示したように、板状部材50内部の熱伝導部材として熱伝導部材44、熱伝導部材46及び熱伝導部材48を用い、厚み及び部材間隔を表2に示すように変更した以外は、実施例1と同様の条件を用い数値解析を行った。得られた結果を同じく表3に示す。
処理装置1の全長Xを表2に示すように変更した以外は、実施例1と同様な条件を用い数値解析を行った。得られた結果を同じく表3に示す。
図13に例示したように、板状部材50内部に熱伝導部材を設けず、外壁部材40の物性値として、ステンレス鋼SUS304の物性値(縦弾性係数=200GPa、横弾性係数=74GPa、線膨張係数γ= 17.8×10-6[/℃])を用いたこと以外は、実施例1と同様の条件を用いて数値解析を行った。得られた結果を同じく表3に示す。
図13に例示したように、板状部材50内部に熱伝導部材を設けなかったこと以外は、実施例1と同様の条件を用いて数値解析を行った。得られた結果を同じく表3に示す。
処理装置1の処理装置の幅Y及びラビリンスノズル24の矩形状開口部幅Wを表2に示すように変更した以外は、実施例1と同様な条件を用い数値解析を行った。得られた結果を同じく表3に示す。
図16に例示する処理装置104において、加圧スチーム処理部の糸条Zの走行方向の全長が1000mm、ラビリンスシール部の糸条の走行方向の全長が1500mm(ただし、ラビリンスシール部の全長は片側のラビリンスシール部の長さのことであり、この全長のラビリンスシール部が加圧スチーム処理部の前後に2つ設けられている。以下同じ。)、ラビリンスノズルの内壁面からの延設長さLが5mm、隣接するラビリンスノズル間のピッチPが20mm、延設長さLとピッチPとの比L/Pが0.25、ラビリンスノズル段数が60段、開口部の高さHが2mm、開口部の幅Wが1000mm、上下の外壁部材のそれぞれ表面側の片面に平面状のヒーター52を固設した処理装置104を用いた。装置本体の材質には鉄鋼(線膨張係数γ= 11.7×10-6[/℃])を用いた。
前記処理装置104を用いて、製造例1で得られた糸条Zを5錘で糸条入口から導入して加圧スチーム処理を行った。加圧室の圧力は300kPaとし、上下の外壁部材の温度が142℃になるようにヒーター52に供給する加圧スチームの圧力と温度とを制御した。
図16、18、20、14、22に例示するように、処理装置104,107,110,101,113の角柱状部材44,46,48を表4に示すように変更した以外は、実施例15と同様にして糸条Zの加圧スチーム処理を行った。
図17に例示するように、加圧スチーム処理部以外の処理装置の加熱手段として、上部外壁部材40Aのみに、片面が平面状のヒーター52を接着させた処理装置105を用いて、上部外壁部材40Aの温度を表4に示すように変更した以外は、実施例15と同様にして糸条Zの加圧スチーム処理を行った。
図17、19、21、15、23に例示するように、処理装置105,108,111,102,114の角柱状部材44,46,48を表4に示すように変更した以外は、実施例21と同様にして糸条Zの加圧スチーム処理を行った。
上下の外壁部材を加熱するヒーターを設けていないこと以外は処理装置101,104,107,110,113と同様な構造を持つ処理装置を用いて、外壁部材40Aの温度を表4に示すように変更した以外は、実施例15と同様にして糸条Zの加圧スチーム処理を行った。
加圧スチーム処理装置で延伸を行っている間に加圧スチーム延伸以降での毛羽の状態を観察し、毛羽の発生頻度を評価した結果と、開口部26における幅方向の高さ斑とを表4に示す。
11a 天板
11b 底板
12 加圧スチーム入口
14 多孔板
16,17 加圧室
18 糸条走行路
20 ラビリンスシール部
22 内壁面
24 ラビリンスノズル
26 (矩形状)開口部
28 膨張室
30 糸条入口
31,33 第1及び第2ラビリンスシール部
32 糸条出口
34 開口部断面中央
36 開口部断面両端
40 外壁部材
40A,40B (上下)外壁部材
44,46,48 角柱状部材(熱伝導部材)
50 上下の枠材(板状部材)
52 ヒーター(加熱手段)
61,62 (上下の分割)装置本体部
Claims (16)
- 加圧スチーム処理部と、ラビリンスシール部とを具備するアクリル系糸条の加圧スチーム処理装置であって、
前記ラビリンスシール部は、加圧スチーム処理部の糸条入口と糸条出口にそれぞれ設けられ、前記糸条の走行路を水平方向に有し、複数のラビリンスノズルを前記走行路の上下に有し、
前記ラビリンスノズルでは、上側ラビリンスノズルと下側ラビリンスノズルが対向する位置に在り、
前記ラビリンスシール部の雰囲気温度が140℃の時の、対向する1組の前記上側ラビリンスノズルと前記下側ラビリンスノズルとの垂直方向の距離の最大値と最小値の差(ΔH)が、0.5mm以下である、
ことを特徴とするアクリル系糸条の加圧スチーム処理装置。 - スチーム入口を除く加圧スチーム処理装置の上面に、前記加圧スチーム処理装置の天板に向けて延在する板状部材を有する外壁部材と、スチーム入口を除く加圧スチーム処理装置の下面に、前記加圧スチーム処理装置の底板に向けて延在する板状部材を有する外壁部材が設けられ、
前記加圧スチーム処理部又は前記ラビリンスシール部の雰囲気温度が140℃の時の、前記加圧スチーム処理装置の天板又は底板の任意の点と、対向する外壁部材の点との温度差が30℃以下である、
請求項1に記載のアクリル系糸条の加圧スチーム処理装置。 - 前記外壁部材が、前記天板及び前記底板の線膨張係数より高い線膨張係数の部材である請求項2記載のアクリル系糸条の加圧スチーム処理装置。
- 前記加圧スチーム処理部及び前記ラビリンスシール部の少なくとも上面と、外壁部材との間に形成される空間部に熱伝導部材が介装されてなる請求項2又は3に記載のアクリル系糸条の加圧スチーム処理装置。
- 加圧スチーム処理部と、ラビリンスシール部とを具備するアクリル系糸条の加圧スチーム処理装置であって、
前記ラビリンスシール部は、加圧スチーム処理部の糸条入口と糸条出口にそれぞれ設けられ、前記糸条の走行路を水平方向に有し、
スチーム入口を除く加圧スチーム処理装置の上面に、前記加圧スチーム処理装置の天板に向けて延在する板状部材を有する外壁部材と、スチーム入口を除く加圧スチーム処理装置の下面に、前記加圧スチーム処理装置の底板に向けて延在する板状部材を有する外壁部材が設けられ、
加圧スチーム処理装置の少なくとも天板と、前記天板の上面に有する外壁部材との間に形成される空間部に熱伝導部材が介装されてなる、
ことを特徴とするアクリル系糸条の加圧スチーム処理装置。 - 前記天板と平行な任意の前記空間部を有する断面に関し、前記板状部材により囲まれた面積A1に対する前記熱伝導部材の断面積A2の比率(A2/A1)が5%以上である請求項4記載のアクリル系糸条の加圧スチーム処理装置。
- 前記熱伝導部材の熱伝導率が16W/(mK)以上である請求項4~6のいずれか一項に記載のアクリル系糸条の加圧スチーム処理装置。
- 前記上下の対向するラビリンスノズル間に形成される矩形状開口部高さHと幅Wとの比(H/W)が、1/2000~1/60である請求項1~7のいずれか一項に記載のアクリル系糸条の加圧スチーム処理装置。
- 前記熱伝導部材が、前記外壁部材に対して直角に、且つ前記開口部に対して直角に1つ以上及び/又は前記開口部に対して平行に1つ以上配されてなる請求項4~8のいずれか一項に記載のアクリル系糸条の加圧スチーム処理装置。
- 前記熱伝導部材が、100mm以上、500mm以下の間隔で平行に複数配されてなる請求項9記載のアクリル系糸条の加圧スチーム処理装置。
- 前記熱伝導部材が、前記外壁部材に対して直角に、且つ前記開口部に対して斜めに、1つ又は複数配してなる請求項4~8のいずれか一項に記載のアクリル系糸条の加圧スチーム処理装置。
- 前記熱伝導部材が、前記外壁部材に対して直角に、且つ前記開口部に対して直角及び斜めにそれぞれ1つ又は複数配されてなる請求項4~8のいずれか一項に記載のアクリル系糸条の加圧スチーム処理装置。
- 前記外壁部材を加熱する加熱手段を備えてなる請求項2~12のいずれか一項に記載のアクリル系糸条の加圧スチーム処理装置。
- 加圧スチーム処理部と、ラビリンスシール部とを具備するアクリル系糸条の加圧スチーム処理装置であって、
前記ラビリンスシール部は、加圧スチーム処理部の糸条入口と糸条出口にそれぞれ設けられ、前記糸条の走行路を水平方向に有し、
スチーム入口を除く加圧スチーム処理装置の上面に、前記加圧スチーム処理装置の天板に向けて延在する板状部材を有する外壁部材と、スチーム入口を除く加圧スチーム処理装置の下面に、前記加圧スチーム処理装置の底板に向けて延在する板状部材を有する外壁部材が設けられ、
前記外壁部材を加熱する加熱手段を備えてなる
ことを特徴とするアクリル系糸条の加圧スチーム処理装置。 - 前記加熱手段による外壁部材の温度を検出する手段と、前記温度検出手段の検出結果に基づいて、前記加熱手段の加熱温度を制御する温度制御手段を有してなる、請求項13または14に記載のアクリル系糸条の加圧スチーム処理装置。
- 請求項1~15のいずれか一項に記載のアクリル系糸条の加圧スチーム処理装置でアクリル系糸条を延伸処理するアクリル系糸条の製造方法。
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- 2012-01-17 JP JP2012504213A patent/JP5430740B2/ja active Active
- 2012-01-17 ES ES12744273.9T patent/ES2607075T3/es active Active
- 2012-01-17 CN CN201280008543.7A patent/CN103354850B/zh active Active
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- 2012-01-17 MX MX2013009249A patent/MX2013009249A/es active IP Right Grant
- 2012-01-17 KR KR1020137023826A patent/KR101384020B1/ko active IP Right Grant
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- 2012-01-17 US US13/984,743 patent/US8839492B2/en active Active
- 2012-01-17 WO PCT/JP2012/050777 patent/WO2012108230A1/ja active Application Filing
- 2012-02-08 SA SA112330256A patent/SA112330256B1/ar unknown
- 2012-02-10 TW TW101104405A patent/TWI489022B/zh active
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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ITMI20130821A1 (it) * | 2013-05-21 | 2013-08-20 | M A E S P A | Apparecchiatura per lo stiro di fibre acriliche in atmosfera di vapore in pressione e dispositivo automatico di incorsamento per detta apparecchiatura. |
WO2014188341A2 (en) | 2013-05-21 | 2014-11-27 | M.A.E. S.P.A. | Apparatus for stretching acrylic fibres in a pressurized steam environment and automatic drawing-in device for said apparatus |
JP2016522864A (ja) * | 2013-05-21 | 2016-08-04 | エンメ.アー.エー. エッセ.ピー.アー. | 加圧蒸気環境内でアクリル繊維を延伸するための装置および前記装置用の自動引き入れデバイス |
US9869041B2 (en) | 2013-05-21 | 2018-01-16 | M.A.E. S.P.A. | Apparatus for stretching acrylic fibers in a pressurized steam environment and automatic fiber drawing-in device for said apparatus |
KR102059715B1 (ko) | 2013-05-21 | 2019-12-26 | 엠.에이.이. 에스.피.에이. | 가압 스팀 환경 내의 아크릴 섬유 신장 장치 및 상기 장치를 위한 자동 섬유 인입 디바이스 |
JP2015030923A (ja) * | 2013-08-01 | 2015-02-16 | 三菱レイヨン株式会社 | 炭素繊維前駆体アクリル繊維束の延伸方法 |
Also Published As
Publication number | Publication date |
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JP5430740B2 (ja) | 2014-03-05 |
CN103354850B (zh) | 2015-11-25 |
KR101384020B1 (ko) | 2014-04-17 |
KR20130116361A (ko) | 2013-10-23 |
HUE030232T2 (en) | 2017-04-28 |
EP2674522A4 (en) | 2014-08-20 |
TWI489022B (zh) | 2015-06-21 |
EP2674522A1 (en) | 2013-12-18 |
CN103354850A (zh) | 2013-10-16 |
ES2607075T3 (es) | 2017-03-29 |
US20140123713A1 (en) | 2014-05-08 |
MX2013009249A (es) | 2013-11-04 |
SA112330256B1 (ar) | 2015-02-17 |
US8839492B2 (en) | 2014-09-23 |
TW201243123A (en) | 2012-11-01 |
JPWO2012108230A1 (ja) | 2014-07-03 |
EP2674522B1 (en) | 2016-09-28 |
PT2674522T (pt) | 2016-11-09 |
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