[특허]Method and system for reducing a foam in a glass melting furnace

Johns Manville International, Inc.

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특허 상세정보

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Method and system for reducing a foam in a glass melting furnace

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C03B-005/02
미국특허분류(USC)	373/027; 373/030
출원번호	US-0440631 (2003-05-19)
발명자 / 주소	Huber, Aaron Morgan Tinianov, Brandon Dillan
출원인 / 주소	Johns Manville International, Inc.
대리인 / 주소	Touslee Robert D.
인용정보	피인용 횟수 : 5 인용 특허 : 36

초록

Provided is a method for reducing or removing a foam present in a glass melting furnace, including providing an ultrasonic energy emitted from at least one ultrasonic energy source to a foam present above the surface of a molten material in a glass melting furnace. The ultrasonic energy is effective to reduce or remove at least a part of the foam. Also provided is a system for reducing or removing a foam present in a glass melting furnace.

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1. A method for reducing or removing a foam present in a glass melting furnace, comprising:providing an ultrasonic energy emitted from at least one ultrasonic energy source to a foam present above the surface of a molten material in a glass melting furnace, wherein the ultrasonic energy is effective to reduce or remove at least a part of the foam, and wherein the at least one ultrasonic energy source is arranged entirely above the surface of the molten material. 2. The method according to claim 1, wherein the foam is present above the molten material in the form of a foam layer. 3. The method according to claim 2, wherein the ultrasonic energy is effective to reduce at least a part of the foam layer in the glass melting furnace by from about 25% to about 100% of the thickness of the foam layer. 4. The method according to claim 3, wherein the ultrasonic energy is effective to reduce at least a part of the foam layer in the glass melting furnace by from about 50% to about 100% of the thickness of the foam layer. 5. The method according to claim 1, wherein the maximum temperature in the glass melting furnace is at least about 1,400 EC. 6. The method according to claim 2, wherein the ultrasonic energy is provided to from about 10% to about 50% of the surface area of the foam layer. 7. A method for reducing or removing a foam present in a glass melting furnace, comprising:providing an ultrasonic energv emitted from at least one ultrasonic energy source to a foam present above the surface of a molten material in a glass melting furnace, wherein the ultrasonic energy is effective to reduce or remove at least a part of the foam, wherein the foam is present above the molten material in the form of a foam layer, and wherein the at least one ultrasonic energy source is arranged above the surface of the foam layer. 8. The method according to claim 1, wherein the at least one ultrasonic energy source is arranged at a sidewall or a crown of the glass melting furnace. 9. The method according to claim 1, wherein the ultrasonic energy is provided by a plurality of ultrasonic energy sources. 10. A method for reducing or removing a foam present in a glass melting furnace, comprising:providing an ultrasonic energy emitted from at least one ultrasonic energy source to a foam present above the surface of a molten material in a glass melting furnace, wherein the ultrasonic energy is effective to reduce or remove at least a part of the foam, wherein the ultrasonic energy is provided by a plurality of ultrasonic energy sources, and wherein a first ultrasonic energy source is arranged at a sidewall of the glass melting furnace, and a second ultrasonic energy source is arranged at a crown of the glass melting furnace. 11. The method according to claim 2, wherein the foam layer includes at least two zones, and wherein the at least one ultrasonic energy source alternately provides the ultrasonic energy to each of the at least two zones. 12. The method according to claim 2, wherein the foam layer includes a first zone and a second zone, wherein a first ultrasonic energy source provides a first ultrasonic energy to the first zone, and a second ultrasonic energy source provides a second ultrasonic energy to the second zone. 13. The method according to claim 1, wherein the ultrasonic energy is at a frequency of from about 25 kHz to about 125 kHz. 14. The method according to claim 2, wherein the ultrasonic energy and the heat emitted from a heat source are directed to the same area of the foam layer. 15. A system for reducing or removing a foam present in a glass melting furnace, comprising:at least one ultrasonic energy source for providing an ultrasonic energy to a foam present above the surface of a molten material in the glass melting furnace, wherein the ultrasonic energy is effective to reduce or remove the foam, and wherein the at least one ultrasonic energy source is arranged entirely above the surface of the molten material. 16. The system according to claim 15, wherein the glass melting furnace comprises at least one heat source effective for melting a raw material to form the molten material. 17. The system according to claim 15, wherein the foam is present above the molten material in the form of a foam layer. 18. The system according to claim 17, wherein the ultrasonic energy is effective to reduce at least a part of the foam layer in the glass meting furnace by from about 25% to about 100% of the thickness of the foam layer. 19. The system according to claim 18, wherein the ultrasonic energy is effective to reduce at least a part of the foam layer in the glass melting furnace by from about 50% to about 100% of the thickness of the foam layer. 20. The system according to claim 17, wherein the at least one ultrasonic energy source is capable of providing ultrasonic energy to from about 10% to about 50% of the surface area of the foam layer. 21. A system for reducing or removing a foam present in a glass melting furnace, comprising:at least one ultrasonic energy source for providing an ultrasonic energy to a foam present above the surface of a molten material in the lass melting furnace, wherein the ultrasonic energy is effective to reduce or remove the foam, wherein the foam is present above the molten material in the form of a foam layer, and wherein the at least one ultrasonic energy source is arranged above the surface of the foam layer. 22. The system according to claim 15, wherein the at least one ultrasonic energy source is arranged at a sidewall or a crown of the glass melting furnace. 23. The system according to claim 15, wherein the system comprises a plurality of ultrasonic energy sources. 24. A system for reducing or removing a foam present in a glass melting furnace, comprising:at least one ultrasonic energy source for providing an ultrasonic energy to a foam present above the surface of a molten material in the glass melting furnace, wherein the ultrasonic energy is effective to reduce or remove the foam, wherein the system comprises a plurality of ultrasonic energy sources, and wherein a first ultrasonic energy source is arranged at a sidewall of the glass melting furnace, and a second ultrasonic energy source is arranged at a crown of the glass melting furnace. 25. The system according to claim 17, wherein the foam layer includes at least two zones, and wherein the at least one ultrasonic energy source alternately provides the ultrasonic energy to each of the at least two zones. 26. The system according to claim 17, wherein the foam layer includes a first zone and a second zone, wherein a first ultrasonic energy source provides a first ultrasonic energy to the first zone and a second ultrasonic energy source provides a second ultrasonic energy to the second zone. 27. The system according to claim 15, wherein the at least one ultrasonic energy source provides the ultrasonic energy at a frequency of from about 25 kHz to about 125 kHz. 28. The system according to claim 17, wherein the ultrasonic energy and the heat emitted from a heat source are directed to the same area of the foam layer. 29. The method according to claim 1, wherein the at least one ultrasonic energy source is arranged such that the ultrasonic energy is not directly introduced into the molten material. 30. The method according to claim 7, wherein the at least one ultrasonic energy source is arranged such that the ultrasonic energy is not directly introduced into the molten material. 31. The method according to claim 10, wherein the at least one ultrasonic energy source is arranged such that the ultrasonic energy is not directly introduced into the molten material. 32. The system according to claim 15, wherein the at least one ultrasonic energy source is arranged such that the ultrasonic energy is not directly introduced into the molten material. 33. The system according to claim 21, wherein the at least one ultrasonic energy source is arranged such that the ultrasonic energy is not directl y introduced into the molten material. 34. The system according to claim 24, wherein the at least one ultrasonic energy source is arranged such that the ultrasonic energy is not directly introduced into the molten material. 35. The method according to claim 7, wherein the ultrasonic energy is at a frequency of from about 25 kHz to about 125 kHz. 36. The method according to claim 10, wherein the ultrasonic energy is at a frequency of from about 25 kHz to about 125 kHz. 37. The method according to claim 21, wherein the at least one ultrasonic energy source provides the ultrasonic energy at a frequency of from about 25 kHz to about 125 kHz. 38. The method according to claim 24, wherein the plurality of ultrasonic energy sources provides the ultrasonic energy at a frequency of from about 25 kHz to about 125 kHz.

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Method and system for reducing a foam in a glass melting furnace

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Method and system for reducing a foam in a glass melting furnace

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