US3020586A - Apparatus for producing fibers - Google Patents

Apparatus for producing fibers Download PDF

Info

Publication number
US3020586A
US3020586A US741267A US74126758A US3020586A US 3020586 A US3020586 A US 3020586A US 741267 A US741267 A US 741267A US 74126758 A US74126758 A US 74126758A US 3020586 A US3020586 A US 3020586A
Authority
US
United States
Prior art keywords
centrifuge
peripheral wall
fibers
wall
band
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US741267A
Other languages
English (en)
Inventor
Charpentier Maurice
Berthon Lucien
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie de Saint Gobain SA
Original Assignee
Compagnie de Saint Gobain SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compagnie de Saint Gobain SA filed Critical Compagnie de Saint Gobain SA
Application granted granted Critical
Publication of US3020586A publication Critical patent/US3020586A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/04—Manufacture of glass fibres or filaments by using centrifugal force, e.g. spinning through radial orifices; Construction of the spinner cups therefor
    • C03B37/045—Construction of the spinner cups
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/04—Manufacture of glass fibres or filaments by using centrifugal force, e.g. spinning through radial orifices; Construction of the spinner cups therefor
    • C03B37/048—Means for attenuating the spun fibres, e.g. blowers for spinner cups

Definitions

  • the present invention relates to the manufacture of fibers from thermoplastic material in the viscous state, and in particular to the manufacture of glass fibers.
  • the invention relates more especially to the production of such fibers according to which the melted material is conducted into the interior of a hollow body, at the periphery of which is provided a band or wall having orifices arranged in several rows.
  • the hollow body is rotatably driven at high speed about its axis and under the action of centrifugal force, the molten material is projected through the orifices in the form of threads, which then undergo a drawing-out effect which transforms them into fibers.
  • the upper part of the peripheral band or wall is placed over the path of the current of flames or hot gases which are spread on contact with the said band, and this upper part of the peripheral band is given a shape such that the part of the flames or hot gases which strike it are directed toward the main current of flames or hot gases by limiting as much as possible its deflection toward the upper part of the centrifuge.
  • the invention provides, in particular, a truncated or rounded shape for the upper part of the peripheral band which is placed in the current of the flames or hot gases.
  • a truncated or rounded shape for the upper part of the peripheral band which is placed in the current of the flames or hot gases.
  • the invention likewise provides for placing, above the centrifuge and in the vicinity of the peripheral Wall, an obstacle designed to prevent the flames or hot gases being deflected toward the upper part of the centrifuge.
  • an annular shoulder limiting the space between the rotating body and the wall of the combustion chamber or burner surrounding the centrifuge can be provided on the upper part of the centrifuge, this shoulder being capable of penetrating to the interior of a groove made in this Wall.
  • the annular shoulder can moreover be integral, not with the centrifuge, but with the combustion chamber or burner.
  • the peripheral wall may be bell-shaped or widened towards the bottom in such a way that the flames or hot gases flow along it without the possibility of separation therefrom.
  • the invention provides, in particular, for imparting to the peripheral wall the shape of several superposed truncated surfaces, the angle of which at the top increases from the upper part towards the lower part.
  • the present invention also contemplates, for the purpose of increasing the Wear-resistance of the peripheral wall, furnishing this peripheral wall with suitably placed ribs, these ribs being annular or horizontal or directed according to a generatrix.
  • the mechanical resistance of the band may be increased further by suitably profiling of the lower part of the centrifuge. It has already been proposed to provide an orifice in this lower part of the centrifuge covering practically the whole lower surface of this body.
  • the invention contemplates the shaping of the portion of the centrifuge adjacent to the band with an inclination of the order of 10 to the horizontal, and a profiling practically identical to that of the upper part of the centrifuge.
  • projection orifices are not made in a smooth peripheral surface, but rather in a peripheral surface having rough places or protuberances, so as to increase the friction of the hot gases on the band, or to realize an adherence of the flames thereto.
  • the invention provides particularly for the realization of a peripheral band with an exterior surface in the form of steps, each step having one or several rows of projection orifices. The offset between these steps may be constant. It may, preferably, be varied with the slope of the peripheral band, and, if desired, may increase with it.
  • FIG. 1 is a partial sectional view of a centrifuge with a surrounding combustion chamber, illustrating one embodiment of the invention
  • FIG. 2 is a view corresponding to FIG. 1 illustrating a second embodiment of the invention
  • FIG. 3 is a sectional view of a portion of the centrifuge illustrating a curved peripheral Wall or one composed'of portions of different angularities;
  • FIG. 4 illustrates a variation of the peripheral wall shown in FIG. 3 provided with steps therealong;
  • FIG. 5 is an enlarged view of the peripheral wall shown in FIG. 4 at the upper portion thereof;
  • FIG. 6 is an enlarged view of the peripheral wall shown in FIG. 4 at the intermediate portion thereof;
  • PEG. 7 is an enlarged view of the peripheral wall shown in FIG. 4 at the lower portion thereof;
  • FIG. 8 is a vertical sectional view of a modified arrangement of a centrifuge provided with a reinforced bottom wall as well as horizontal reinforcing ribs;
  • FIG. 9 is a partial sectional view of a centrifuge pro-' vided with vertical reinforcing ribs.
  • FIG. 10 is a vertical sectional view of the peripheral wall provided with projection orifices having enlarged entry openings for the purpose of minimizing the frictional resistance to material projected therethrough.
  • FIG. 1 is shown the rotating body or centrifuge 1,
  • the peripheral band or wall 2 is provided with a certain number of rows of orifices 3 for the projection therefrom of the material in the melted state which is introduced to the interior of this body.
  • the centrifuge is surrounded by a combustion chamber 4 with an annular slot 5 concentric with the centrifuge.
  • the upper part 8 of the peripheral band 2 is mounted below the slot 5 within the vertical projection thereof and in the path of the hot gases escaping from the annular slot 5 of the combustion chamber, and this part 8 is rounded off so that the part of the hot gases which strike it are directed toward the current which leaves the slot, and which is conveyed over the entire height of the band which has a shape that flares toward the bottom.
  • the surface of the impact zone of the hot gases on the upper part of the band is between a half and a tenth of the surface of slot 5.
  • annular shoulder 7 which serves as an obstacle to limit the space between this body and the wall of the combustion chamber.
  • the presence of this enlargement contributes toward preventing any passage of hot gases in this space.
  • the annular shoulder 7 may be placed adjacent to the inner boundary of the annular slot 5 to constrict the space between the upper wall of the centrifuge and the combustion chamber.
  • the shoulder on either the centrifuge or the combustion chamber may be extended to fit within a recess in the opposite member. This is illustrated in FIG. 4 wherein the shoulder 7 on the top of the centrifuge fits within an annular recess 7' in the underside of the combustion chamber 4.
  • the peripheral band has a variable conic shape and is comprised of three superposed truncated surfaces 2a, 2b, 2c whose angle at the top increases from the upper to the lower part.
  • the surface 2a can have 21 7 inclination, 2b a 10 inclination, and 20 a 13 inclination with respect to the vertical. Due to this arrangement, the friction and contact of the gas current with the peripheral wall is improved all along the wall.
  • the friction and area of contact of the hot gases with the peripheral band is increased over the entire height of this band, by providing steps 10, each step capable of accommodating one or several rows of projection orifices 3.
  • the offset or displacement between the steps may be different according to the inclination of the surface.
  • the displacement d increases with the inclination to the vertical, being a minimum for the small angles at the top of the peripheral wall (FIG. 5), increasing for the larger inclination of the wall at the intermediate part thereof, as shown in MG. 6 by d, and being a maximum, as shown by d" in FIG. 7 at the wall portion adjacent to the bottom thereof.
  • FIG. 8 shows a modified form of a centrifuge whose bottom 11 is inclined to the horizontal and which presents a profiling similar to that of the upper part 6 of the rotating body, and which is characterized particularly by a concavity directed towards the bottom with a variable section increasing from the peripheral Wall to its extremity.
  • This form given to the bottom 11 increases the mechanical strength of the band.
  • internal horizontal ribs 12 are provided for the same purpose.
  • the ribs 13, instead of being arranged horizontally, are placed vertically and extend over the whole height of the band from bottom 11 to the upper part 6.
  • the thickness of its peripheral wall may be increased.
  • this increased thickness increases the length of the projection channels 3 through which the molten material must pass, and consequently the resistance to the flow of this material, which in turn gives rise to the necessity of increasing the pressure of the material being fed to these channels.
  • the invention contemplates giving these channels a flared shape toward the inside of the centrifuge.
  • the eripheral wall consists of two parts, the inner part 14 having the flared entry openings 15 which merge with the passages 16 which are provided in the outer part 17 which encompass the projection orifices 3.
  • the peripheral wall may have a variable thickness, the thickness being greater at the lower part than at its upper part.
  • An apparatus for manufacturing fibers of thermoplastic material comprising a hollow rotary centrifuge provided with an opening to receive the heated thermo plastic material in the interior thereof, said centrifuge having a peripheral wall provided with a plurality of superposed rows of orifices therein for projecting the fibers therethrough by centrifugal force, said peripheral wall having a varied angularity with the inclination thereof with respect to the vertical, increasing constantly from the top to the bottom thereof, means including an annularly-shaped slot for directing an annular hot gaseous blast against the peripheral wall of said centrifuge and onto the fibers issuing therefrom in a direction transverse to the planes of emission thereof, the upper part of said peripheral wall being disposed below said slot within the vertical projection thereof and within the path of said gaseous blast so that the portion of the blast striking said upper part of the wall is directed towards the main part of the blast with minimal deviation thereof towards the upper part of the centrifuge.
  • An apparatus for manufacturing fibers of thermoplastic material comprising a hollow centrifuge rotatable about a vertical axis and provided with an opening to receive the heated thermoplastic material in the interior thereof, said centrifuge having a peripheral wall provided with a plurality of superposed rows of orifices therein for projecting the fibers therethrough by centrifugal force, means including an annularly-shaped slot for directing an annular hot gaseous blast against the peripheral wall of said centrifuge and onto the fibers issuing therefrom in a direction transverse to the planes of emission thereof, the upper part of said peripheral wall being disposed below said slot within the vertical projection thereof and within the path of said gaseous blast so that the portion of the blast striking said upper part of the wall is directed towards the main part of the blast with minimal deviation thereof towards the upper part of the centrifuge, and protuberances on said peripheral wall to increase the frictional resistance of the gaseous blast thereon and consequently the adherence of said blast thereto without separation therefrom.
  • peripheral wall is composed of different portions of varying inclination and the protuberances are in the form of steps having a varying displacement from each other at the several inclinations, with each one of the steps having at least one row of the projection orifices therein.
  • peripheral wall is formed of two juxtaposed concentric bands, the inner one having flared openings facing the interior of the centrifuge and the outer one having the orifices therein coinciding with the constricted ends of said last-mentioned openings.
  • peripheral wall is of variable thickness, being of greater thickness at the bottom than at the top thereof.
  • An apparatus for manufacturing fibers of thermoplastic material comprising a hollow rotary centrifuge provided with an opening to receive the heated thermoplastic material in the interior thereof, said centrifuge having a peripheral wall composed of a plurality of superimposed truncated surfaces the angularities of which increase from the upper to the lower part and provided with a plurality of superposed rows of orifices therein for projecting the fibers therethrough by centrifugal force, means for directing an annular hot gaseous blast against the peripheral wall of said centrifuge and onto the fibers issuing therefrom in a direction transverse to the planes of emission thereof, the upper part of said peripheral wall being disposed within the path of said gaseous blast so that the portion of the blast striking said upper part of the wall is directed towards the main part of the blast with minimal deviation thereof towards the upper part of the centrifuge.
  • An apparatus for manufacturing fibers of thermoplastic material comprising a hollow centrifuge rotatable about a vertical axis and provided with an opening to receive the heated thermoplastic material in the interior thereof, said centrifuge having a flared frustoconical peripheral wall of substantial height provided with a plurality of superposed rows of orifices therein for projecting the fibers therethrough by centrifugal force, a combustion chamber surrounding said centrifuge and provided with an annular slot for directing an annular hot gaseous blast against the peripheral wall of said centrifuge and onto the fibers issuing therefrom 6 in a direction transverse to the planes of emission thereof, the upper part of said peripheral wall being of rounded form and disposed below said annular slot within the vertical projection thereof and within the path of i said gaseous blast so that the portion of the blast striking said upper part of the wall is directed towards the main part of the blast with minimal deviation thereof towards the upper part of the centrifuge, and an annular protuberance in the space between said combustion chamber and the upper part of said centrif
  • centrifuge is provided with a curved top wall extending inwardly from the top of said peripheral wall, and a curved bottom wall on said centrifuge extending inwardly from the bottom of said peripheral wall at an angle of approximately 10 to the horizontal and having an inwardly directed convex curvature substantially in conformity with that of said top wall.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Measuring Volume Flow (AREA)
US741267A 1957-06-17 1958-06-11 Apparatus for producing fibers Expired - Lifetime US3020586A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR741111 1957-06-17

Publications (1)

Publication Number Publication Date
US3020586A true US3020586A (en) 1962-02-13

Family

ID=8704500

Family Applications (1)

Application Number Title Priority Date Filing Date
US741267A Expired - Lifetime US3020586A (en) 1957-06-17 1958-06-11 Apparatus for producing fibers

Country Status (7)

Country Link
US (1) US3020586A (US20030204162A1-20031030-M00002.png)
BE (1) BE568679A (US20030204162A1-20031030-M00002.png)
CH (1) CH347308A (US20030204162A1-20031030-M00002.png)
DE (1) DE1092606B (US20030204162A1-20031030-M00002.png)
FR (1) FR1177313A (US20030204162A1-20031030-M00002.png)
GB (1) GB834385A (US20030204162A1-20031030-M00002.png)
NL (5) NL130662C (US20030204162A1-20031030-M00002.png)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3245768A (en) * 1962-03-19 1966-04-12 Johns Manville Rotor for forming glass filaments
US4289518A (en) * 1978-12-08 1981-09-15 Saint-Gobain Industries Glass fiberization by centrifugal feed of glass into attenuating blast
US5203900A (en) * 1989-12-06 1993-04-20 Isover Saint-Gobain. "Les Miroirs" Method of producing discontinuous coated glass fibers
US20070000286A1 (en) * 2005-07-01 2007-01-04 Gavin Patrick M Fiberizing spinner for the manufacture of low diameter, high quality fibers
US20080229786A1 (en) * 2007-03-21 2008-09-25 Gavin Patrick M Rotary Fiberizer
US20120270718A1 (en) * 2009-12-22 2012-10-25 Saint-Gobain Isover Fibre-forming centrifuge, device and method for forming mineral fibres
CN110785385A (zh) * 2017-07-11 2020-02-11 圣戈班伊索福公司 纤维化纺丝机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2459783B1 (fr) * 1979-06-22 1989-10-20 Saint Gobain Centrifugeur creux pour le fibrage de matieres thermoplastiques, notamment de verre
US4731001A (en) * 1985-10-31 1988-03-15 Toshiba Electric Appliances Co., Ltd. Apparatus for making cotton candy
US4846643A (en) * 1985-10-31 1989-07-11 Toshiba Electric Appliances Apparatus for making cotton candy

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2192944A (en) * 1937-05-11 1940-03-12 Owens Corning Fiberglass Corp Apparatus for manufacturing glass wool
US2431205A (en) * 1943-09-08 1947-11-18 Owens Corning Fiberglass Corp Apparatus for manufacturing fibrous glass
US2609566A (en) * 1948-12-31 1952-09-09 Owens Corning Fiberglass Corp Method and apparatus for forming fibers
US2624912A (en) * 1946-05-31 1953-01-13 Saint Gobain Process and apparatus for the production of fibers from thermoplastics
FR1124487A (fr) * 1955-02-28 1956-10-12 Saint Gobain Perfectionnement à la fabrication de fibres, notamment de fibres de verre

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2192944A (en) * 1937-05-11 1940-03-12 Owens Corning Fiberglass Corp Apparatus for manufacturing glass wool
US2431205A (en) * 1943-09-08 1947-11-18 Owens Corning Fiberglass Corp Apparatus for manufacturing fibrous glass
US2624912A (en) * 1946-05-31 1953-01-13 Saint Gobain Process and apparatus for the production of fibers from thermoplastics
US2609566A (en) * 1948-12-31 1952-09-09 Owens Corning Fiberglass Corp Method and apparatus for forming fibers
FR1124487A (fr) * 1955-02-28 1956-10-12 Saint Gobain Perfectionnement à la fabrication de fibres, notamment de fibres de verre
FR1124489A (fr) * 1955-02-28 1956-10-12 Saint Gobain Perfectionnement à la fabrication de fibres à partir de matières thermoplastiques telles que le verre
FR1127561A (fr) * 1955-02-28 1956-12-19 Saint Gobain Perfectionnements aux dispositifs pour la fabrication de fibres à partir de matières thermoplastiques telles que le verre

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3245768A (en) * 1962-03-19 1966-04-12 Johns Manville Rotor for forming glass filaments
US4289518A (en) * 1978-12-08 1981-09-15 Saint-Gobain Industries Glass fiberization by centrifugal feed of glass into attenuating blast
US5203900A (en) * 1989-12-06 1993-04-20 Isover Saint-Gobain. "Les Miroirs" Method of producing discontinuous coated glass fibers
US20070000286A1 (en) * 2005-07-01 2007-01-04 Gavin Patrick M Fiberizing spinner for the manufacture of low diameter, high quality fibers
US20080229786A1 (en) * 2007-03-21 2008-09-25 Gavin Patrick M Rotary Fiberizer
US8250884B2 (en) 2007-03-21 2012-08-28 Owens Corning Intellectual Capital, Llc Rotary fiberizer
US20120270718A1 (en) * 2009-12-22 2012-10-25 Saint-Gobain Isover Fibre-forming centrifuge, device and method for forming mineral fibres
US8869567B2 (en) * 2009-12-22 2014-10-28 Saint-Gobain Isover Fibre-forming centrifuge, device and method for forming mineral fibres
EP2516339B1 (fr) 2009-12-22 2019-02-20 Saint-Gobain Isover Centrifugeur de fibrage, dispositif et procede de formation de fibres minerales
CN110785385A (zh) * 2017-07-11 2020-02-11 圣戈班伊索福公司 纤维化纺丝机
KR20200028343A (ko) * 2017-07-11 2020-03-16 쌩-고벵 이조베르 섬유 형성 판
US11505490B2 (en) 2017-07-11 2022-11-22 Saint-Gobain Isover Fibre-forming plate

Also Published As

Publication number Publication date
GB834385A (en) 1960-05-04
NL130662C (US20030204162A1-20031030-M00002.png) 1971-02-15
CH347308A (fr) 1960-06-30
NL135447C (US20030204162A1-20031030-M00002.png)
DE1092606B (de) 1960-11-10
BE568679A (US20030204162A1-20031030-M00002.png) 1958-12-17
NL111951C (US20030204162A1-20031030-M00002.png) 1965-10-15
NL6509455A (US20030204162A1-20031030-M00002.png) 1965-10-25
FR1177313A (fr) 1959-04-23
NL228768A (US20030204162A1-20031030-M00002.png)
NL302964A (US20030204162A1-20031030-M00002.png) 1965-10-25

Similar Documents

Publication Publication Date Title
US3304164A (en) Apparatus for producing fine glass fibers
US3020586A (en) Apparatus for producing fibers
US2998620A (en) Method and means for centrifuging curly fibers
KR100188507B1 (ko) 광물모의 제조방법 및 장치, 및 그것에 의해 제조된 광물모
US3819345A (en) Production of fibers from thermoplastic materials, particularly glass fibers
US3017663A (en) Apparatus for producing fibers from thermoplastic material
US3150947A (en) Method for production of glass beads by dispersion of molten glass
US3650716A (en) Method of and apparatus for the production of fibers from thermoplastic materials, particularly glass fibers
US4116656A (en) Method of manufacturing fibers of inorganic material and apparatus for same
JPS61141638A (ja) 中空遠心スピナ−
US3084381A (en) Production of fibers from thermoplastic material, particularly glass fibers
US2991507A (en) Manufacture of fibers from thermoplastic materials such as glass
JP4008495B2 (ja) 鉱質ウールを製造する方法および装置
US3282668A (en) Apparatus for the production of fibers from organic or inorganic thermoplastic materials
US2931062A (en) Rotor construction for fiber forming apparatus
US3560179A (en) Rotary apparatus with fluid blast means for making glass fibers from heat-softenable mineral materials
US3759680A (en) Method and apparatus for producing fibers from glass
US3523774A (en) Rotary apparatus for forming glass fibers
JPH06501447A (ja) ガラスファイバーの製造装置及びその製造方法
US4046535A (en) Glass melter having reflective top wall and method for using same
US4627868A (en) Method and apparatus for producing mineral fibers
US3177058A (en) Apparatus for processing heatsoftenable materials
US3152878A (en) Manufacture of fibers, particularly glass fibers
KR20060015255A (ko) 유리 섬유의 제조 방법 및 제조 장치
US3084380A (en) Apparatus for producing fibers from thermoplastic material