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Clarifying device and method for centrifugally clarifying giass

A clarification device and glass technology, which is applied in glass production, glass furnace equipment, glass manufacturing equipment, etc., can solve the problems of difficult to guarantee glass and molten glass, and achieve the effects of shortened residence time, reduced size, and compact equipment

Inactive Publication Date: 2006-06-07
SAINT-GOBAIN GLASS FRANCE
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Problems solved by technology

[0007] In any case, although it is effective to achieve a very significant reduction in the residence time of the vitrifiable substances in the melting chamber compared to "usual" melting and a considerable increase in productivity, on the other hand the molten glass is difficult to clarify. Foamy, it is especially difficult to guarantee the quality of the final glass, especially optical glass

Method used

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  • Clarifying device and method for centrifugally clarifying giass
  • Clarifying device and method for centrifugally clarifying giass
  • Clarifying device and method for centrifugally clarifying giass

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Embodiment Construction

[0088] The device described below is suitable for melting and refining glasses with very different compositions, and the glass here is supplied to float glass production equipment for the production of flat glass. In particular, these glasses can also be supplied to hollow glass forming equipment or to fiber-forming equipment using centrifugal action devices.

[0089] Of course, in addition to any standard glass of silicon-sodium-calcium type, it is particularly advantageous to use the device of the present invention to produce different types of special glass, especially the glass that has been considered difficult to melt so far:

[0090] With low Na 2 Glass with O content and relatively high content of alkaline earth metal oxides (specifically CaO) is economically advantageous in terms of raw material cost, but it has great corrosion resistance at normal melting temperatures and adopts the usual methods. The melting is still quite hard. It may involve, for example, the glass c...

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Abstract

The present invention relates to a clarification device and a method of centrifugally refining glass, the device being used for thin-layer clarification glass and comprising at least one device capable of rotating for centrifugal clarification, the inner wall of said device essentially defining at least one vertical hollow cylinder The shape of the middle part, inside the cylinder, has baffles over at least a part of its height, so as to prevent the molten glass from flowing out between said inner wall and these baffles.

Description

[0001] This application is a divisional application of the parent case with the application number CN99800054.X. The filing date of the mother case is January 22, 1999; the title of the invention is "Method and Device for Melting and Refining Vitrifiable Substances". Technical field [0002] The present invention relates to a clarification device, a clarification device and a method for centrifuging and clarifying glass. [0003] More specifically it relates to flat glass forming equipment, such as float glass forming equipment or flat glass forming equipment, but also to bottle and flask type hollow glass forming equipment, thermal or sound insulation mineral wool type glass fiber forming equipment or so-called Reinforced fabric glass filament forming equipment. Background technique [0004] A lot of research work has been done on these methods. These methods briefly include the first melting step, followed by the clarification step. The clarification step consists in adjusting t...

Claims

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Application Information

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IPC IPC(8): C03B5/225C03B5/20C03B5/235
CPCC03B5/225C03B5/2255C03B5/2257C03B5/2353C03B5/2356Y02P40/57Y02P40/50C03B5/235
Inventor P·让沃伊尼T·马萨尔特R·罗德里格斯 夸塔斯A·罗德里格斯 罗德里格斯J·-A·努内斯 埃尔南德斯
Owner SAINT-GOBAIN GLASS FRANCE
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