[특허]Glass furnace with bottom material feed

Owens-Brockway Glass Container Inc.

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Glass furnace with bottom material feed

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C03B-003/02 C03B-003/00 C03B-005/04 C03B-005/235
출원번호	US-0262113 (2014-04-25)
등록번호	US-9822027 (2017-11-21)
발명자 / 주소	Wang, Zhongming Weil, Scott Gullinkala, Tilak Vempati, Udaya Kadur, Shivakumar S.
출원인 / 주소	Owens-Brockway Glass Container Inc.
인용정보	피인용 횟수 : 0 인용 특허 : 16

초록

A glass furnace includes a furnace chamber for containing glass melt and a screw conveyor for receiving glass batch material and feeding the glass batch material to the furnace chamber. A dam wall is disposed with respect to the screw conveyor such that batch material from the screw conveyor must flow upward over the dam wall before entering the furnace chamber. The top of the dam wall may be below the level of the melt pool in the furnace chamber.

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1. A glass furnace comprising: a melt chamber configured to contain a glass melt;a conveyor configured to receive glass batch material and feed such material to the melt chamber, wherein the conveyor is coupled to an output shaft of a motor surrounded by a motor housing, and the motor housing is coupled to a source of cooling fluid that circulates through the motor housing;a dam wall disposed upstream with respect to the melt chamber and downstream with respect to the conveyor, wherein a top of the dam wall is below a melt level in the melt chamber, and wherein the dam wall forms a well upstream of the melt chamber;a heater positioned in the well and configured to heat glass batch material prior to flow over the dam wall,wherein the conveyor is disposed at a position below a top surface of the glass melt within the melt chamber, and wherein the conveyor is configured to drive the raw batch materials into a lower portion of the well for partial melting by the heater prior to entering the melt chamber, and wherein the conveyor and the dam wall are configured to flow the batch materials upward over the dam wall before the batch materials enter the melt chamber. 2. The furnace set forth in claim 1, wherein the heater comprises a heating element and a conveyor that conveys batch material through the heater toward an outlet of the heater, wherein the outlet of the heater is positioned below a top of the dam wall. 3. The furnace set forth in claim 1 further comprising: a plurality of heaters positioned in the well, wherein the heaters heat the glass batch material prior to flow over the dam wall, wherein each of the heaters comprises a heating element and a conveyor that conveys the glass batch material through the heater toward an outlet thereof; anda plurality of chutes through which glass batch material is conveyed prior to being conveyed through the heaters. 4. The glass furnace of claim 1 wherein the conveyor is a screw conveyor. 5. The glass furnace of claim 1 wherein the heater includes a gas heating element or an electric heating element. 6. The glass furnace of claim 1 wherein the conveyor includes a first conveyor that drives the batch material to the well and a second conveyor that drives batch through the well. 7. The glass furnace of claim 1 wherein the conveyor extends into the well. 8. The glass furnace of claim 7 wherein the conveyor extends horizontally. 9. The glass furnace of claim 7 wherein the conveyor extends vertically. 10. A glass furnace comprising: a glass melt;a melt chamber for containing said glass melt;a screw conveyor configured to receive glass batch material and feed such material to the melt chamber, wherein the screw conveyor is coupled to an output shaft of a motor surrounded by a motor housing, and the motor housing is coupled to a source of cooling fluid that circulates through the motor housing; anda dam wall disposed upstream with respect to the melt chamber and downstream with respect to the conveyor, wherein the conveyor and the dam wall are configured to flow the batch materials upward over the dam wall before the batch materials enter the melt chamber. 11. The glass furnace of claim 10 wherein the conveyor is a screw conveyor. 12. The glass furnace of claim 10 wherein the heater includes a gas heating element or an electric heating element. 13. The glass furnace of claim 10 wherein the conveyor includes a first conveyor that drives the batch material to the well and a second conveyor that drives batch through the well. 14. The glass furnace of claim 10 wherein the conveyor extends into the well. 15. The glass furnace of claim 14 wherein the conveyor extends horizontally. 16. The glass furnace of claim 14 wherein the conveyor extends vertically. 17. A glass furnace that includes: a pool of glass melt;a melt chamber including a wall and configured to contain said pool of glass melt;a batch feeder adjacent to the wall of the melt chamber and configured to supply batch material;a conveyor proximate one end of the batch feeder and configured to receive and convey the batch material;a dam wall disposed upstream with respect to the melt chamber and downstream of the conveyor at the end of the conveyor and forming a well upstream of the melt chamber, wherein a top of the dam wall is below a melt level in the melt chamber; and,a heater positioned in the well between the dam wall and the wall of the melt chamber and configured to heat the batch material in the well before flowing over the dam wall into the glass melt,wherein the conveyor is disposed at a position below a top surface of the glass melt within the melt chamber and wherein the conveyor is configured to drive the raw batch materials into a lower portion of the well for partial melting by the heater prior to entering the melt chamber, and wherein the conveyor and the dam wall are configured to flow the batch materials upward over the dam wall before the batch materials enter the melt chamber. 18. The glass furnace of claim 17 wherein the conveyor is oriented horizontally. 19. The glass furnace of claim 17 wherein the conveyor is oriented vertically. 20. The glass furnace of claim 17 wherein the conveyor is a screw conveyor. 21. The glass furnace of claim 20 wherein the screw conveyor is coupled to an output shaft of a motor, the motor is surrounded by a motor housing, and the motor housing is coupled to a source of cooling fluid that circulates through the motor housing and maintains the motor at an acceptable temperature. 22. The glass furnace of claim 17 wherein the heater includes a gas heating element or an electric heating element. 23. The glass furnace of claim 17 wherein the conveyor includes a first conveyor that drives the batch material to the well and a second conveyor that drives batch through the well. 24. The glass furnace of claim 17 wherein the conveyor extends into the well. 25. The glass furnace of claim 24 wherein the conveyor extends horizontally. 26. The glass furnace of claim 24 wherein the conveyor extends vertically. 27. A glass furnace that includes: a melt chamber configured to contain a pool of glass melt having a melt level;a feed chamber proximate a bottom portion of the melt chamber, the feed chamber having an outlet below the melt level;a conveyor configured to receive batch material and to convey the batch material through the feed chamber toward the outlet of the feed chamber, the conveyor being disposed at least partially within the feed chamber, and coupled to an output shaft of a motor surrounded by a motor housing, and the motor housing is coupled to a source of cooling fluid that circulates through the motor housing;a dam wall disposed upstream with respect to the melt chamber and downstream of the conveyor, wherein a top of the dam wall is below a melt level in the melt chamber, and wherein the dam wall forms a well upstream of the melt chamber; anda heater positioned in the well proximate the outlet of the feed chamber and configured to heat glass batch material prior to flow over the dam wall and that at least partially melts the batch material,wherein the conveyor is disposed at a position below a top surface of the glass melt within the melt chamber and wherein the conveyor is configured to drive the raw batch materials into a lower portion of the well for partial melting by the heater prior to entering the melt chamber, and wherein the conveyor and the dam wall are configured to flow the batch materials upward over the dam wall before the batch materials enter the melt chamber. 28. The glass furnace of claim 27 wherein the conveyor is oriented generally horizontally within the feed chamber. 29. The glass furnace of claim 27 wherein the heater is disposed within the feed chamber such that batch material exiting the feed chamber is forced through or past the heater. 30. The glass furnace of claim 27 wherein the heater is disposed to heat batch material prior to flow over the dam wall. 31. The glass furnace of claim 27 wherein the dam wall forms the well at one end of the feed chamber that separates the feed chamber from the melt chamber. 32. The glass furnace of claim 31 wherein the well is part of the feed chamber and the conveyor is oriented generally vertically within the feed chamber. 33. The glass furnace of claim 32 wherein the feed chamber has a sloped bottom feed wall that aids in maintaining an even flow of batch material to the vertically oriented conveyor. 34. The glass furnace of claim 27 including: a batch feeder that supplies batch material to the feed chamber. 35. The glass furnace of claim 34 wherein the batch feeder is adjacent a side wall of the melt chamber and supplies batch material under gravity to the feed chamber. 36. The glass furnace of claim 27 wherein the outlet of the feed chamber defines an opening in a side wall of the melt chamber. 37. The glass furnace of claim 36 wherein the opening in the side wall of the melt chamber defines a plane, and wherein the end of the screw conveyor is in approximate alignment with the plane of the opening. 38. The glass furnace of claim 37 wherein the heater comprises a submerged heater proximate a bottom wall of the melt chamber, wherein the heater heats the batch material passing through the opening in the side wall of the melt chamber into the melt chamber. 39. The glass furnace of claim 27 wherein the conveyor is a screw conveyor. 40. The glass furnace of claim 27 wherein the heater includes a gas heating element or an electric heating element. 41. The glass furnace of claim 27 wherein the conveyor includes a first conveyor that drives the batch material to the well and a second conveyor that drives batch through the well. 42. The glass furnace of claim 27 wherein the conveyor extends into the well. 43. The glass furnace of claim 42 wherein the conveyor extends horizontally. 44. The glass furnace of claim 42 wherein the conveyor extends vertically.

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Glass furnace with bottom material feed

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Glass furnace with bottom material feed

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