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WO2008000002A1 - Procédé de fabrication de fibres minérales continues - Google Patents

Procédé de fabrication de fibres minérales continues Download PDF

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Publication number
WO2008000002A1
WO2008000002A1 PCT/AT2007/000183 AT2007000183W WO2008000002A1 WO 2008000002 A1 WO2008000002 A1 WO 2008000002A1 AT 2007000183 W AT2007000183 W AT 2007000183W WO 2008000002 A1 WO2008000002 A1 WO 2008000002A1
Authority
WO
WIPO (PCT)
Prior art keywords
melt
volume
nozzle
removal area
processing zone
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.)
Ceased
Application number
PCT/AT2007/000183
Other languages
German (de)
English (en)
Inventor
Taras Oleksandrovich Medvyedyev
Yury Lvovich Tsybulya
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.)
Asamer Basaltic Fibers GmbH
Centre Competence 'basalt' LLC
Original Assignee
Asamer Basaltic Fibers GmbH
Centre Competence 'basalt' LLC
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 Asamer Basaltic Fibers GmbH, Centre Competence 'basalt' LLC filed Critical Asamer Basaltic Fibers GmbH
Priority to EP07718399A priority Critical patent/EP2041037A1/fr
Publication of WO2008000002A1 publication Critical patent/WO2008000002A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • C03B37/08—Bushings, e.g. construction, bushing reinforcement means; Spinnerettes; Nozzles; Nozzle plates

Definitions

  • the invention relates to the production of endless mineral fibers, in particular from rock, from mixtures based thereon, from glass-containing industrial and technical waste products.
  • a disadvantage of this method is that it only defines the procedure for determining an optimum (with regard to the properties of the melt necessary for the production of qualitative primary fibers) removal area in the processing zone (distribution channel).
  • the known method does not match the geometrical dimensions of the removal region with the parameters of the melting furnace in which the preparation of the melt for feeding into the processing zone (distribution channel) takes place, nor with the parameters of the fiber forming system, which is a flow feeder and a nozzle vessel, which are arranged one behind the other and connected to each other. This reduces the overall stability of the fiber production process, but allows the production of endless mineral fibers from viscous and high viscosity melts with an average specific brittleness of at least 0.7 fractions per kg.
  • a rock mineral fiber manufacturing method which comprises preparing a melt of raw material in a melting furnace, feeding the melt to a processing zone (distribution channel) from which the melt is taken by a feeder and fed to the nozzles (European Patent EP 1380552 , 2002, IPC C03B 37/02), wherein the openings of the flow feeder, through which the removal of the melt takes place and which form the extraction zone for the removal of the melt, are arranged such that the ratio of the height of the melt in the furnace to Height of the removal range for the melt in the range of 1.4 to 50 is located.
  • the ratio of the melt level in the furnace (the melting tank) to the projection surface of the Entnalime Schemes for the melt to the horizontal plane in the range of 10 to 6000 are.
  • the known method matches the geometrical dimensions of the removal region with the parameters of the melting furnace in which the treatment of the melt for supply to the processing zone (distribution channel) takes place
  • the known process as before does not provide any connection between the geometry of the removal region for the melt with the parameters of the fiber-forming system, which is a flow feeder and a nozzle vessel arranged one behind the other and connected to each other. This does not make it possible to ensure a high overall stability of the fiber production process, but has made it possible to improve the characteristics of the production of continuous mineral fibers to an average specific brittleness of at least 0.5 fractions per kg and a daily average output of a single unit of up to 170 kg.
  • the extraction area for taking out the melt for flow supply to the nozzles is formed by an end opening of the flow feeder and openings on the side surface of the flow feeder.
  • the known method defines the function of the flow feeder as follows: "Taking a temperature homogeneous melt and stabilizing its supply to the nozzle feeder for processing into primary fiber" (p. 106).
  • This ratio between the melt viscosities in the flow feeder and in the nozzle vessel depends primarily on the temperature of the melt itself, which is withdrawn from the processing zone (distribution channel) and the walls of the said devices, which are usually by ohmic heating on passage electric current to be heated.
  • the working temperatures of the materials from which the flow feeder (nozzle vessel) are produced are generally limited to a range from 1350 to 1800 0 C, which is close to the melting temperature of the rock, as it is - also in view of the low thermal conductivity and diathermy nature of basalt rock melts - it is not possible to use the flow feeder (the nozzle vessel) for effectively controlling the properties of the melt, in particular for heating the melt to optimum temperatures.
  • the only function of the flow feeder is to "stabilize” the melt with optimum properties from the removal area to the nozzle vessel (s) for fiber formation.
  • the possibility of a “stabilized” supply undoubtedly determines the relationship between the geometrical dimensions of the zone of the melt removal area (in fact, the volume inside) the flow feeder delimited by the plane of its end opening and the plane connecting the lower and lower edges of the lower openings located on the side surface of the flow feeder and located in the processing zone) and the geometrical dimensions (in fact the volume en) of the flow feeder, the nozzle vessel and the total volume of the inner nozzle opening.
  • the object to be solved by the present invention is to increase the stability and effectiveness of basalt rock melt fiber manufacturing technology, mixtures based thereon, glass-containing industrial and engineering wastes, resulting in a reduction of the average specific brittleness on stripping of the primary yarns and an increase in the specific output of a single production unit.
  • the distribution channel is also often called feeder channel or supply line or basin.
  • the volume in the enthalpy area comprises the internal volume of the opening or openings in the region of the end face of the flow feeder and the internal volume of the openings which are located on the side faces of the flow feeder.
  • the wall thickness of the flow feeder is low, this being selected from a range with a lower limit of 0.1 mm, preferably 0.5 mm, in particular 0.8 mm and an upper limit of 10 mm, preferably 5 mm, in particular 3 mm , Wall thicknesses from a range of max. 1 mm. This results in very small volumes.
  • the total volume of the openings in the side areas of the flow feeder is from a range with a lower limit of 50 mm 3 , preferably 80 mm 3 , in particular 100 mm 3 , and an upper limit of 500 mm 3 , preferably 300 mm, in particular 200 mm. Volumes of 150 mm 3 to 180 mm 3 prove to be particularly advantageous.
  • the total volume of the opening or openings in the end region of the flow feeder is from a range with a lower limit of 1000 mm 3 , preferably 1500 mm 3 , in particular 2000 mm, and an upper limit of 10000 mm 3 , preferably 5000 mm 3 , in particular 4000 mm 3 , selected. Volumes of 3200 mm 3 to 3800 mm 3 are advantageous. Even very small deviations of the volumes of a few percent can be of great importance for the quality of the mineral fibers.
  • the diameter of the end opening or the sum of the end openings of the flow feeder is selected from a range with a lower limit of 1 mm, preferably 5 mm, in particular 10 mm, and an upper limit of 100 mm, preferably 50 mm, in particular 30 mm.
  • the height over which the openings are distributed on the side surfaces of the flow feeder is from a range with a lower limit of 0.5 mm, preferably 2 mm, in particular 5 mm, and an upper limit of 200 mm, preferably 100 mm, in particular 50 mm, selected.
  • the internal volume of the nozzle openings is limited by the plane in the bottom and front of the nozzle opening.
  • the nozzle vessel is completely filled with melt to produce and maintain a defined static pressure.
  • the nozzle vessel also only having to be partially filled with melt.
  • the diameter of the nozzle openings is selected from a range with a lower limit of 0.5 mm, preferably 1 mm, in particular 1.5 mm, and an upper limit of 50 mm, preferably 20 mm, in particular 10 mm. Particularly advantageous are openings with an average diameter in the range of 1 mm to 5 mm.
  • the present invention provides optimum ratios of the volume of the melt removal area to the internal volumes of the flow feeder and the nozzle vessel, and also the internal volume of the internal openings of the nozzles of the nozzle vessel.
  • the nozzle vessel and the nozzle orifices of less than 0.02, 0.0005 and 0.05 respectively, the amount of melt entering the molding system is not sufficient, and it may come to violations of the principle of continuous flow of the melt, which flows into the inner nozzle openings. This, in turn, obviously leads to an increase in the specific brittleness of the primary fibers and a reduction in the specific production of the fiber-forming system.
  • melt flows at different temperatures into the flow feeder it is known from the literature, that the temperature of the melt on heating from the surface decreases on average by 15 to 17 ° C every 10 mm
  • a viscosity which can not be stabilized with the aid of the heat released from the walls of the flow feeder which leads to Example be heated by passing electrical current (the amount of heat mentioned is limited by the working interval of the materials from which the flow feeder is made).
  • Basalt rock giving a viscous melt having the following composition (% by weight): 52.8 to 53.7 SiO 2 , 0.5 to 0.6 TIO 2 , 17.3 to 19.7 Al 2 O 3 , 9.8 to 10.6 Fe 2 O 3 + FeO, 3.1 to 6.3 MgO 7.1 to 8.0 CaO, 2.8 Na 2 0, 1.6 K 2 O, others - 1 , 8, was ground to particle sizes of 10 to 20 mm, mechanically sorted and placed in a smelting furnace where, with the aid of the combustion energy of the gas-air mixture, a temperature of 1450 ⁇ 10 0 C was maintained to produce a homogeneous melt.
  • the melt flowed into the processing zone itself - the distribution channel, on the bottom of which flow feed tubes were arranged, which had openings in the end face as well as on the side face near the end face.
  • the temperature of the melt in the distribution channel was maintained in the range of 1300 to 1350 0 C.
  • a removal area was formed, wherein the depth of the distribution channel, the height of the withdrawal area exceeded 3.5 times.
  • the melt was led from the processing zone to the nozzle vessel, where the formation of the fibers took place in the inner nozzle openings.
  • the ratios of the volume of the melt extraction area to the inner volumes of the flow feeder, the nozzle vessel and the nozzle openings were 0.025, 0.006 and 0.45, respectively. Under production conditions, a mean specific brittleness of basalt continuous fibers of 0.45 fractions per kg and a mean output of a single unit of 177 kg per 24 hours was achieved.
  • mineral fibers were produced from Kraftwerksasche, the calcite (CaCO 3 ) was added, according to the technology described for Example 1.
  • the ash was composed of the following components (wt%): 43.6 SiO 2 , 16.2 Al 2 O 3 , 1.6 Fe 2 O 3 , 5.25 FeO, 0.7 Li 2 O, 26 , 7 CaO, 3.11 MgO, 0.67 K 2 O, and 2.17 other ingredients.
  • Example 1 According to the technique described for Example 1, at a temperature of 1300 ⁇ 30 ° C in the melting furnace and 1100 to 1270 ° C in the distribution channel mineral fibers from glass-containing technical waste products (fluorescent tubes) were prepared according to the invention.
  • the glass-containing technical waste products were composed of the following components (% by weight): 72.0 SiO 2 , 2.0 Al 2 O 3 , ⁇ 0.01 FeO, 19.5 to 18 (Na 2 O + K 2 O), 8.0 (CaO + MgO + BaO), traces of PbO, Sb 2 O 3 , As 2 O 3 , Cd oxide, Ti and other components.

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)
  • Inorganic Fibers (AREA)
  • Glass Compositions (AREA)

Abstract

L'invention concerne la technologie de fabrication de fibres minérales continues constituées de matériaux présentant une taille de particules qui, de préférence, ne dépasse pas 80 mm dans un four de fusion. La masse fondue est acheminée dans des dispositifs d'alimentation liquide dans la zone de transformation dans le canal de répartition. Une zone de prélèvement est constituée dans la zone de transformation pour la masse fondue, pour acheminer le liquide aux buses du récipient à buses, dans les ouvertures intérieures duquel les fibres continues primaires sont formées. Le rapport entre le volume de la zone de prélèvement de la masse pour l'acheminement liquide aux buses, et le volume intérieur du dispositif d'alimentation liquide est de l'ordre de 0,002 à 0,09, ou le rapport entre le volume de la zone de prélèvement de la masse fondue pour acheminement liquide aux buses, et le volume intérieur du récipient à buses qui est rempli par la masse fondue est de l'ordre de 0,0005 à 0,025, ou le rapport entre le volume de la zone de prélèvement de la masse fondue pour l'acheminement liquide et le volume interne total des ouvertures de buses du récipient à buses est de l'ordre de 0,05 à 2,8.
PCT/AT2007/000183 2006-06-26 2007-04-20 Procédé de fabrication de fibres minérales continues Ceased WO2008000002A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07718399A EP2041037A1 (fr) 2006-06-26 2007-04-20 Procédé de fabrication de fibres minérales continues

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
UAUA200607107 2006-06-26
UA200607107 2006-06-26

Publications (1)

Publication Number Publication Date
WO2008000002A1 true WO2008000002A1 (fr) 2008-01-03

Family

ID=38267530

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2007/000183 Ceased WO2008000002A1 (fr) 2006-06-26 2007-04-20 Procédé de fabrication de fibres minérales continues

Country Status (2)

Country Link
EP (1) EP2041037A1 (fr)
WO (1) WO2008000002A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9027927B2 (en) 2007-11-27 2015-05-12 Aristocrat Technologies Australia Pty Limited Gaming machine with reels

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992021628A1 (fr) * 1991-05-31 1992-12-10 Medvedev Alexandr Alexandrovic Procede et dispositif de production de fibre minerale continue
RU2068814C1 (ru) * 1993-07-07 1996-11-10 Александр Александрович Медведев Способ изготовления волокон из расплава горных пород и устройство для его осуществления
DE19538599A1 (de) * 1995-10-09 1997-05-07 Buerger Gerhard Verfahren und Vorrichtung zur Herstellung von Mineralfasern
RU2203231C2 (ru) * 2000-08-17 2003-04-27 Научно-исследовательская лаборатория базальтовых волокон Института проблем материаловедения НАН Украины Способ получения непрерывного волокна из расплава базальтовых горных пород

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992021628A1 (fr) * 1991-05-31 1992-12-10 Medvedev Alexandr Alexandrovic Procede et dispositif de production de fibre minerale continue
RU2068814C1 (ru) * 1993-07-07 1996-11-10 Александр Александрович Медведев Способ изготовления волокон из расплава горных пород и устройство для его осуществления
DE19538599A1 (de) * 1995-10-09 1997-05-07 Buerger Gerhard Verfahren und Vorrichtung zur Herstellung von Mineralfasern
RU2203231C2 (ru) * 2000-08-17 2003-04-27 Научно-исследовательская лаборатория базальтовых волокон Института проблем материаловедения НАН Украины Способ получения непрерывного волокна из расплава базальтовых горных пород

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9027927B2 (en) 2007-11-27 2015-05-12 Aristocrat Technologies Australia Pty Limited Gaming machine with reels

Also Published As

Publication number Publication date
EP2041037A1 (fr) 2009-04-01

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