Method for the refining of glass
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
UP-0362396
(2001-07-14)
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등록번호 |
US-7694533
(2010-05-20)
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우선권정보 |
DE-100 41 757(2000-08-25) |
국제출원번호 |
PCT/EP2001/008148
(2001-07-14)
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§371/§102 date |
20030716
(20030716)
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국제공개번호 |
WO02/016274
(2002-02-28)
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발명자
/ 주소 |
- Rodek, Erich
- Schmid-Bauer, Wolfgang
- Römer, Hilgegard
- Weidmann, Günter
- Kiefer, Werner
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출원인 / 주소 |
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대리인 / 주소 |
Ohlandt, Greenley, Ruggiero & Perle, L.L.P.
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인용정보 |
피인용 횟수 :
2 인용 특허 :
4 |
초록
▼
A method for the refining of glass by means of high temperatures in a skull crucible is provided. The method includes introducing a glass melt in the skull crucible through an inlet disposed at an upper region of the skull crucible, heating the skull crucible by irradiation of high-frequency energy,
A method for the refining of glass by means of high temperatures in a skull crucible is provided. The method includes introducing a glass melt in the skull crucible through an inlet disposed at an upper region of the skull crucible, heating the skull crucible by irradiation of high-frequency energy, and discharging the glass melt from the skull crucible through an outlet disposed at the upper region, the outlet being disposed at a place essentially lying opposite the inlet.
대표청구항
▼
The invention claimed is: 1. A method for the refining of glass, which is heated by irradiation of high-frequency energy, by means of high temperatures in a skull crucible, comprising: introducing a glass melt in a melting-down basin of the skull crucible through an inlet disposed at an upper regio
The invention claimed is: 1. A method for the refining of glass, which is heated by irradiation of high-frequency energy, by means of high temperatures in a skull crucible, comprising: introducing a glass melt in a melting-down basin of the skull crucible through an inlet disposed at an upper region of the skull crucible; coupling the high-frequency energy into the glass melt of the skull crucible with a high frequency coil to heat the glass melt in the melting-down basin to a temperature of between 1,750 to 3,000° C.; discharging the glass melt from the melting-down basin through an outlet disposed at the upper region so that the melt overflows from the melting-down basin into an open top overflow channel, which is in fluid communication with a refining device, the outlet being disposed at a place essentially lying opposite the inlet; and preventing a short-circuit flow between the inlet and the outlet by increasing a temperature difference between the glass melt introduced at the inlet and the glass melt within the melting-down basin via the high frequency coil. 2. The method according to claim 1, wherein the short-circuit flow is prevented by a barrier that is cooled and has metal or ceramic components. 3. A method of refining a glass melt comprising: heating the glass melt in a first skull crucible to a temperature of between 1,750 to 3,000° C. by irradiating high-frequency energy into the glass melt; laterally introducing the glass melt to a first portion of an upper region of said first skull crucible so that the glass melt is refined in said first skull crucible prior to overflowing said first skull crucible at a second portion of said upper region into an overflow channel that is open at the top; and increasing, via the high frequency coil, a temperature difference between the glass melt introduced to the first portion and the glass melt overflowing at the second portion to prevent a short-circuit flow between the first and second portions. 4. The method as in claim 3, wherein said first and second portions are diametrically opposite portions. 5. The method as in claim 3, further comprising positioning a bridge barrier in said upper region between said first and second portions. 6. The method as in claim 5, wherein said bridge barrier has a portion that extends a desired depth below a surface of the glass melt. 7. The method as in claim 6, wherein said desired depth is about 1 cm. 8. The method as in claim 5, further comprising cooling said bridge barrier. 9. The method as in claim 5, wherein said bridge barrier is centrally positioned between said first and second portions. 10. The method as in claim 5, wherein said bridge barrier is positioned closer to said first portion than to said second portion. 11. The method as in claim 5, further comprising electrically connecting said bridge barrier to said first skull crucible so that no induced voltages build up between said bridge barrier and said first skull crucible. 12. The method as in claim 5, further comprising operating said bridge barrier and said first skull crucible in an electrically free floating manner. 13. The method as in claim 3, further comprising: heating a second skull crucible; and laterally introducing the glass melt from said first skull crucible via said overflow channel to an inlet of an upper region of said second skull crucible so that the glass melt is further refined in said second skull crucible prior to leaving said second skull crucible at an outlet of said upper region. 14. A method for the refining of glass, which is heated by irradiation of high-frequency energy, by means of high temperatures, comprising: providing a skull crucible refining device having an upper crucible part and a lower crucible part, the upper crucible part having a first diameter, an inlet, and an outlet disposed diametrically opposite the inlet, and the lower crucible part having a second smaller diameter; laterally introducing a cold crude melt to the inlet of the refining device; coupling the high-frequency energy into the lower crucible part of the refining device with a high frequency coil so that the cold crude melt introduced at the inlet is pulled downward from the upper crucible part to a bottom of the lower crucible part then is heated so that a heated crude melt rises to the upper crucible part and forms a refined melt by removing bubbles from the heated crude melt without the cold crude melt being led along directly to the outlet from the inlet at surface of the upper crucible part; and laterally discharging the refined melt from the outlet.
이 특허에 인용된 특허 (4)
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Boen Roger (St. Alexandre FRX) Ladirat Christian (Saint Laurent des Arbes FRX) Gnilka Jean-Pierre (Venejan FRX) Pilliol Henri (Avignon FRX), Furnace for the continuous melting of oxide mixtures by direct induction with high frequency, a very short refining time.
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Matesa Joseph M. (Plum Boro PA), Method for rapid induction heating of molten glass or the like.
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Cozac Daniel (Braine l\Alleud BEX) Simon Jean-Francois (Brussels BEX), Method of manufacturing glass.
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Kurata Motoharu (Tokyo JPX), Method of manufacturing glass.
이 특허를 인용한 특허 (2)
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Kiefer, Werner; Römer, Hildegard; Lentes, Frank-Thomas; Räke, Guido; Ohmstede, Volker; Naumann, Karin; Leister, Michael; Nuessle, Gerhard; Rodek, Erich; Schmidbauer, Wolfgang, Melting and refining in tanks with cooled walls.
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Leister, Michael; Kolberg, Uwe; Ritter, Simone Monika; Wolff, Silke, Method and system for producing glass, in which chemical reduction of glass components is avoided.
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