BE500030A - - Google Patents

Info

Publication number
BE500030A
BE500030A BE500030DA BE500030A BE 500030 A BE500030 A BE 500030A BE 500030D A BE500030D A BE 500030DA BE 500030 A BE500030 A BE 500030A
Authority
BE
Belgium
Prior art keywords
emi
glass
coloring agent
coloring
feeder
Prior art date
Application number
Other languages
French (fr)
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.)
Publication of BE500030A publication Critical patent/BE500030A/fr

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/173Apparatus for changing the composition of the molten glass in glass furnaces, e.g. for colouring the molten glass
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/18Stirring devices; Homogenisation
    • C03B5/187Stirring devices; Homogenisation with moving elements
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/18Stirring devices; Homogenisation
    • C03B5/187Stirring devices; Homogenisation with moving elements
    • C03B5/1875Stirring devices; Homogenisation with moving elements of the screw or pump-action type

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)

Description

       

   <EMI ID=1.1> 

  
La coloration du verre a généralement lieu par introduction d'un agent colorant dans le bassin même de fusion. Pour passer d'une fabrication de verre,coloré à un verre incolore ou vice-versa, il suffit donc de cesser

  
ou, au contraire, de procéder à l'introduction du colorant; mais, en raison

  
de la continuité de marche et du grand volume des bassins de fusion, le passage du verre coloré au verre incolore ou vice-versa ne se fait que lentement,

  
ce dont il résulte des productipns de verre dont la coloration va progressivement en diminuant', ou, au: contraire, en s'accentuant, productions qui ne peuvent être utilisées qu'à la fabrication d'articles de moindre valeur.. 

  
La présente invention remédie à cet inconvénient elle a pour ob-jet un procédé de coloration du verre&#65533; grâce auquel sont rendus à peu près instantanés les passages d'un verre incolore à un verre coloré, d'un( verre coloré à un verre de couleur différente ou d'un verre coloré à un verre incolore, ce qui évite la nécessité de fabriquer, lors des changements de couleur, des quantités relativement importantes d'articles sans valeur. 

  
 <EMI ID=2.1> 

  
titué par un mélange vitrifiable de bas point de fusion, coulant liquide dans le verre chaud au fur et à mesure du tirage de celui-ci, ou introduit directement sous forme de poudre- 

  
Pour assurer un mélange intime de l'agent colorant et du verre,

  
 <EMI ID=3.1> 

  
et d'un ou plusieurs groupes de cylindres lisses se déplaçant transversalement dans ledit "feeder", perpendiculairement à son fond et au courant de verre.

  
L' invention sera bien comprise, d'ailleurs, à l'aide de la description qui va suivre, en référence au dessin schématique annexé, donné à titre d'exemple indicatif, représentant des appareillages pour la mise en oeuvre de ce procédé :
Fig. 1 est une vue en plan d'une installation selon l'invention; Figures 2, 3 et 4 sont des vues respectivement de face en élévation, de côté en élévation et en plan d'un dispositif rotatif de brassage du verre dans le "feeder"; Figures 5, 6 et 7 sont les mêmes vues d'un dispositif de brassage à déplacement transversal alternatif; Figures 8, 9 et 10 sont les mêmes vues d'un dispositif de brassage identique au dernier, mais double, et  Figures 11, 12 et 13 sont les mêmes vues d'un dispositif comportant <EMI ID=4.1> 

  
Pour obtenir une coloration rigoureusement uniforme du verre, ce dernier est brassé, dans la zone 6 du "feeder", après introduction de l'agent colorant.

  
Ce brassage peut être réalisé par des dispositifs, tels que notamment :
-trois cylindres 7 en matière réfractaire et à structure hélicoï- <EMI ID=5.1> 

  
à une vitesse lente, de l'ordre de quelques tours par minute pour éviter la formation de bulles dans le verre; ces cylindres rotatifs sont disposés, dans

  
 <EMI ID=6.1> 
-quatre cylindres lisses 10 formant les dents d'un peigne 12, comme <EMI ID=7.1> 

  
 <EMI ID=8.1> 
-deux peignes 12 comportant chacun, comme représenté en figures 8, <EMI ID=9.1> 

  
 <EMI ID=10.1> 
-simultanément trois cylindres rotatifs 7 à structure hélicoïdale <EMI ID=11.1> 

  
 <EMI ID=12.1> 

  
térieur du "feeder". 

  
L'agent colorant utilisé est constitué par un mélange vitrifiable

  
 <EMI ID=13.1> 

  
d'exemple, être formé d'une forte proportion de borax, de 10 à 30 % de colorant consistant en un ou plusieurs oxydes ou combinaisons métalliques ou tous autres éléments de coloration, et éventuellement des traces de fluidifiant.

  
Ce mélange colorant peut être introduit en 2, dans le "feeder" 3,, soit à l'état fondu, soit sous forme de poudre; dans le premier cas, il coule dans le verre chaud, au fur et à mesure du tirage de celui-ci; dans le second cas, la poudre de colorant concentré résultant, d'une fusion en pot séparée et

  
 <EMI ID=14.1> 

  
ou tout autre dispositif approprié, distribuée exactement dosée en fonction

  
 <EMI ID=15.1> 

  
poudre de colorant se liquéfie d'ailleurs immédiatement, lorsqu'elle tombe au contact du verre fondu.

  
L'invention ne se limite pas, bien entendu, à la seule composition d'agent colorant, non plus qu'aux seuls appareillages ci-dessus indiqués, à



   <EMI ID = 1.1>

  
The coloring of the glass generally takes place by introducing a coloring agent into the melting tank itself. To switch from manufacturing colored glass to colorless glass or vice versa, it is sufficient to stop

  
or, on the contrary, to introduce the dye; but, due

  
the continuity of operation and the large volume of the melting basins, the change from colored glass to colorless glass or vice versa is only done slowly,

  
which results in glass products whose coloring is gradually decreasing, or, on the contrary, increasing, productions which can only be used in the manufacture of articles of lesser value.

  
The present invention overcomes this drawback it has for ob-jet a process for coloring glass &#65533; thanks to which are rendered almost instantaneous the passages from a colorless glass to a colored glass, from a (colored glass to a different colored glass or from a colored glass to a colorless glass, which avoids the need to manufacture , during color changes, relatively large quantities of worthless items.

  
 <EMI ID = 2.1>

  
titué by a vitrifiable mixture of low melting point, flowing liquid in the hot glass as it is drawn, or introduced directly in the form of powder-

  
To ensure an intimate mixing of the coloring agent and the glass,

  
 <EMI ID = 3.1>

  
and one or more groups of smooth cylinders moving transversely in said "feeder", perpendicular to its bottom and to the flow of glass.

  
The invention will be well understood, moreover, with the aid of the description which follows, with reference to the appended schematic drawing, given by way of indicative example, showing equipment for the implementation of this process:
Fig. 1 is a plan view of an installation according to the invention; Figures 2, 3 and 4 are respectively front elevation, side elevation and plan views of a rotary device for mixing the glass in the "feeder"; Figures 5, 6 and 7 are the same views of a reciprocating transverse displacement brewing device; Figures 8, 9 and 10 are the same views of a brewing device identical to the last one, but double, and Figures 11, 12 and 13 are the same views of a device comprising <EMI ID = 4.1>

  
To obtain a strictly uniform coloring of the glass, the latter is stirred, in zone 6 of the "feeder", after introduction of the coloring agent.

  
This mixing can be carried out by devices, such as in particular:
- three cylinders 7 in refractory material and with a helical structure - <EMI ID = 5.1>

  
at a slow speed, of the order of a few revolutions per minute to prevent the formation of bubbles in the glass; these rotating cylinders are arranged, in

  
 <EMI ID = 6.1>
-four smooth cylinders 10 forming the teeth of a comb 12, like <EMI ID = 7.1>

  
 <EMI ID = 8.1>
-two combs 12 each comprising, as shown in Figures 8, <EMI ID = 9.1>

  
 <EMI ID = 10.1>
-simultaneously three rotating cylinders 7 with helical structure <EMI ID = 11.1>

  
 <EMI ID = 12.1>

  
terior of the "feeder".

  
The coloring agent used consists of a vitrifiable mixture

  
 <EMI ID = 13.1>

  
for example, be formed from a high proportion of borax, from 10 to 30% of dye consisting of one or more oxides or metal combinations or any other coloring elements, and optionally traces of thinner.

  
This coloring mixture can be introduced at 2, into the "feeder" 3 ,, either in the molten state or in the form of powder; in the first case, it flows into the hot glass, as the glass is drawn; in the second case, the resulting concentrated dye powder from a separate pot melting and

  
 <EMI ID = 14.1>

  
or any other suitable device, dispensed exactly dosed according to

  
 <EMI ID = 15.1>

  
dye powder liquefies immediately when it comes into contact with molten glass.

  
The invention is not limited, of course, to the coloring agent composition alone, nor to the only equipment indicated above, to


    

Claims (1)

titre d'exemples; elle en embrasse, au contraire, toutes les variantes de réalisation. as examples; on the contrary, it embraces all variant embodiments. REVENDICATIONS. <EMI ID=16.1> CLAIMS. <EMI ID = 16.1> colorant est introduit directement dans le canal, dit "feeder", de distribution du verre fondu aux machines à mouler, ledit agent colorant étant constitué par un mélange vitrifiable de bas point de fusion, soûlant liquide dans le verre chaud au fur et à mesure du tirage de celui-ci., ou introduit indirectement sous forme de poudreo coloring agent is introduced directly into the channel, called "feeder", for distributing molten glass to molding machines, said coloring agent being constituted by a vitrifiable mixture of low melting point, boiling liquid in the hot glass as and when drawing of it., or introduced indirectly in the form of powdero <EMI ID=17.1> <EMI ID = 17.1> de verreo glass <EMI ID=18.1> <EMI ID = 18.1> <EMI ID=19.1> <EMI ID = 19.1>
BE500030D 1949-12-21 BE500030A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR837752X 1949-12-21

Publications (1)

Publication Number Publication Date
BE500030A true BE500030A (en)

Family

ID=9298733

Family Applications (1)

Application Number Title Priority Date Filing Date
BE500030D BE500030A (en) 1949-12-21

Country Status (5)

Country Link
BE (1) BE500030A (en)
CH (1) CH289620A (en)
DE (1) DE837752C (en)
FR (1) FR1004619A (en)
NL (1) NL157961C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL107359C (en) * 1956-03-21
US3057175A (en) * 1956-04-17 1962-10-09 Owens Illinois Glass Co Apparatus for mixing colorant in glass furnace forehearth
DE1207051B (en) * 1958-09-01 1965-12-16 Harvey Larry Penberthy Device for homogenizing a glass melt
DE1143305B (en) * 1958-11-18 1963-02-07 Libbey Owens Ford Glass Co Process for the production of types of glass of different composition
DE1158672B (en) * 1959-07-14 1963-12-05 Owens Illinois Glass Co Mixed glasses colored green by chromium oxide

Also Published As

Publication number Publication date
FR1004619A (en) 1952-04-01
NL157961C (en)
CH289620A (en) 1953-03-31
DE837752C (en) 1952-05-02

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