Apparatus, systems and methods for conditioning molten glass
First Claim
1. An apparatus for conditioning molten glass comprising:
- a flow channel defined by a floor, a roof, and a sidewall structure connecting the floor and roof;
the flow channel divided into a plurality of serial sections by a series of skimmers extending generally substantially vertically downward a portion of a distance between the roof and floor;
one or more high momentum combustion burners positioned immediately upstream of each skimmer in either the roof or sidewall structure, or both, to burst at least some foamed material retained behind the skimmers and floating on top of a molten mass of glass flowing in the flow channel by heat and/or direct impingement thereon; and
one or more low momentum combustion burners positioned immediately downstream of each skimmer in either the roof, the sidewall structure, or both, and positioned to transfer heat to the molten mass of glass without substantial interference from the foamed material.
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Accused Products
Abstract
Channel apparatus for use with submerged combustion systems and methods of use to produce glass. One channel apparatus includes a flow channel defined by a floor, a roof, and a wall structure connecting the floor and roof, the flow channel divided into sections by a series of skimmers. Channel apparatus include both high and low momentum combustion burners, with one or more high momentum combustion burners positioned immediately upstream of each skimmer in either the roof or sidewall structure, or both, and one or more low momentum combustion burners positioned immediately downstream of each skimmer in either the roof, the sidewall structure, or both, and positioned to transfer heat to the molten mass of glass without substantial interference from foamed material. Certain embodiments include increased height of glass-contact refractory, in particular immediately upstream of the skimmers.
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Citations
68 Claims
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1. An apparatus for conditioning molten glass comprising:
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a flow channel defined by a floor, a roof, and a sidewall structure connecting the floor and roof; the flow channel divided into a plurality of serial sections by a series of skimmers extending generally substantially vertically downward a portion of a distance between the roof and floor; one or more high momentum combustion burners positioned immediately upstream of each skimmer in either the roof or sidewall structure, or both, to burst at least some foamed material retained behind the skimmers and floating on top of a molten mass of glass flowing in the flow channel by heat and/or direct impingement thereon; and one or more low momentum combustion burners positioned immediately downstream of each skimmer in either the roof, the sidewall structure, or both, and positioned to transfer heat to the molten mass of glass without substantial interference from the foamed material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A system for conditioning molten glass comprising:
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a submerged combustion melter comprising a floor, a roof, a sidewall structure connecting the floor and roof, a melting zone being defined by the floor, roof and wall structure, and a plurality of burners, at least some of which are positioned to direct combustion products into the melting zone under a level of molten glass in the melting zone and form a turbulent molten glass, the melter vessel comprising a batch feeder attached to the wall or roof above the level, and an exit end comprising a melter exit structure for discharging the molten glass, the melter exit structure fluidly and mechanically connecting the melter vessel to a molten glass conditioning channel, the melter configured to produce an initial foamy molten glass having a density and comprising bubbles, at least some of the bubbles forming a bubble layer on top of the foamy molten glass; the molten glass conditioning channel comprising; a flow channel defined by a channel floor, a channel roof, and a channel wall structure connecting the channel floor and channel roof; the flow channel divided into a plurality of serial sections by a series of skimmers extending generally substantially vertically downward a portion of a distance between the channel roof and channel floor; one or more high momentum combustion burners positioned immediately upstream of each skimmer in either the channel roof or channel sidewall structure, or both, to burst at least some foamed material retained behind the skimmers and floating on top of the molten mass of glass flowing in the flow channel by heat and/or direct impingement thereon; and one or more low momentum combustion burners positioned immediately downstream of each skimmer in either the channel roof, the channel sidewall structure, or both, and positioned to transfer heat to the molten mass of glass without substantial interference from the foamed material. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A method for conditioning molten glass comprising:
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a) routing an initial foamy molten glass into a conditioning channel, the initial foamy molten glass having a density and comprising bubbles, at least some of the bubbles forming a bubble layer on top of the foamy molten glass, the conditioning channel comprising a flow channel defined by a channel floor, a channel roof, and a channel sidewall structure connecting the channel floor and channel roof, the flow channel divided into a plurality of serial sections by a series of skimmers extending generally substantially vertically downward a portion of a distance between the channel roof and channel floor; b) positioning one or more high momentum combustion burners immediately upstream of each skimmer in either the channel roof or channel sidewall structure, or both; c) operating the high momentum burners to route combustion products from the high momentum burners to impact at least a portion of bubbles in the bubble layer on the foamy molten glass retained behind the skimmers with sufficient force and/or heat to burst at least some of the bubbles; and d) positioning one or more low momentum combustion burners immediately downstream of each skimmer in either the channel roof, the channel sidewall structure, or both; and e) operating the low momentum burners to route combustion products from the low momentum burners to transfer heat to the molten mass of glass without substantial interference from the foamed material. - View Dependent Claims (34, 35, 36)
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37. A method for conditioning molten glass comprising:
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a) melting glass-forming materials in a submerged combustion melter comprising a floor, a roof, and a sidewall structure connecting the floor and roof, the melter comprising one or more submerged combustion burners and a molten glass outlet, producing an initial foamy molten glass having a density and comprising bubbles, at least some of the bubbles forming a bubble layer on top of the foamy molten glass; b) routing the initial foamy molten glass into a conditioning channel, the conditioning channel comprising a flow channel defined by a channel floor, a channel roof, and a channel wall structure connecting the channel floor and channel roof, the flow channel divided into a plurality of serial sections by a series of skimmers extending generally substantially vertically downward a portion of a distance between the channel roof and channel floor; c) positioning one or more high momentum combustion burners immediately upstream of each skimmer in either the channel roof or channel sidewall structure, or both; d) operating the high momentum burners to route combustion products from the high momentum burners to impact at least a portion of bubbles in the bubble layer on the foamy molten glass retained behind the skimmers with sufficient force and/or heat to burst at least some of the bubbles; e) positioning one or more low momentum combustion burners immediately downstream of each skimmer in either the channel roof, the channel sidewall structure, or both; and f) operating the low momentum burners to route combustion products from the low momentum burners to transfer heat to the molten mass of glass without substantial interference from the foamed material. - View Dependent Claims (38, 39, 40)
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41. An apparatus for conditioning molten glass comprising:
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a flow channel defined by a floor, a roof, and a sidewall structure connecting the floor and roof; the flow channel divided into two sections by a skimmer extending generally substantially vertically downward a portion of a distance between the roof and floor; one or more high momentum combustion burners positioned upstream of the skimmer in either the roof or sidewall structure, or both, to burst at least some foamed material retained behind the skimmers and floating on top of a molten mass of glass flowing in the flow channel by heat and/or direct impingement thereon; and one or more low momentum combustion burners positioned downstream of the skimmer in either the roof, the sidewall structure, or both, and positioned to transfer heat to the molten mass of glass without substantial interference from the foamed material. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52)
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53. A method for conditioning molten glass comprising:
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a) routing an initial foamy molten glass into a conditioning channel and under a skimmer, the initial foamy molten glass having a density and comprising bubbles, the conditioning channel comprising a flow channel defined by a channel floor, a channel roof, and a channel sidewall structure connecting the channel floor and channel roof, the skimmer extending generally substantially vertically downward a portion of a distance between the channel roof and channel floor, thereby collecting foam into a region of high bubble volume on top of the molten glass upstream of the skimmer; b) positioning one or more high momentum combustion burners above the region of high bubble volume upstream of the skimmer in either the channel roof or channel sidewall structure, or both; c) operating the high momentum burners to route combustion products from the high momentum burners to impact at least a portion of bubbles in the region of high bubble volume on the molten glass retained behind the skimmers with sufficient force and/or heat to burst at least some of the bubbles; and d) positioning one or more low momentum combustion burners downstream of each skimmer in either the channel roof, the channel sidewall structure, or both; and e) operating the low momentum burners to route combustion products from the low momentum burners to transfer heat to the molten mass of glass without substantial interference from the foamed material. - View Dependent Claims (54, 55)
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56. A method for conditioning molten glass comprising:
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a) routing an initial foamy molten glass under a skimmer, thereby collecting foam into a region of high bubble volume on top of the molten glass upstream of the skimmer; b) directing combustion products from at least one high momentum burner onto the region of high bubble volume on the molten glass with sufficient force and/or heat to burst at least some bubbles of the region of high bubble volume; and c) directing combustion products from at least one low momentum burner to transfer heat to the molten glass downstream of the skimmer. - View Dependent Claims (57, 58, 59)
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60. A method for conditioning molten glass comprising:
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a) providing a conditioning channel comprising a flow channel defined by a channel floor, a channel roof, and a channel sidewall structure connecting the channel floor and channel roof, the conditioning channel having one more skimmers extending generally substantially vertically downward a portion of a distance between the channel roof and channel floor; b) routing an initial foamy molten glass having a density and comprising bubbles into the conditioning channel and under the one or more skimmers, thereby causing one or more regions of high bubble volume to collect on top of the molten glass at one or more first locations in the conditioning channel; c) operating at least one high momentum burner above each of the one or more first locations to route combustion products from the high momentum burners to impact at least a portion of bubbles in the one or more regions of high bubble volume with sufficient force and/or heat to burst at least some of the bubbles; and d) operating at least one low momentum burner to route combustion products from the low momentum burner to transfer heat to the top of molten glass at a second location where regions of high bubble volume are not formed. - View Dependent Claims (61)
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62. A method for conditioning molten glass comprising:
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a) providing a conditioning channel comprising a flow channel defined by a channel floor, a channel roof, and a channel sidewall structure connecting the channel floor and channel roof; b) separating the conditioning channel into a plurality sections by positioning one or more skimmers in the conditioning channel, each skimmer extending generally substantially vertically downward a portion of a distance between the channel roof and channel floor; c) positioning at least one high momentum burner and at least one low momentum burner in at least one of the plurality of sections in either the channel roof or channel sidewall structure, or both; d) routing an initial foamy molten glass having a density and comprising bubbles into the conditioning channel and under the one or more skimmers, thereby causing a region of high bubble volume to collect on top of the molten glass in a downstream portion of at least one section; e) operating at least one high momentum burner above the region of high bubble volume in the at least one section to impact at least a portion of bubbles in the region with sufficient force and/or heat to burst at least some of the bubbles; and f) operating at least one low momentum burner to route combustion products from the low momentum burners to transfer heat to the top of molten glass in upstream portions of each section where regions of high bubble volume are not formed. - View Dependent Claims (63, 64)
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65. An apparatus for conditioning molten glass comprising:
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a flow channel defined by a floor, a roof, and a sidewall structure connecting the floor and roof; the flow channel divided into a plurality of serial sections by a series of skimmers extending generally substantially vertically downward a portion of a distance between the roof and floor; one or more high momentum combustion burners positioned upstream of each skimmer in either the roof or sidewall structure, or both, to burst at least some foamed material retained behind the skimmers and floating on top of a molten mass of glass flowing in the flow channel by heat and/or direct impingement thereon; and one or more low momentum combustion burners positioned downstream of each skimmer in either the roof, the sidewall structure, or both, and positioned to transfer heat to the molten mass of glass without substantial interference from the foamed material.
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66. A system for conditioning molten glass comprising:
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a submerged combustion melter comprising a floor, a roof, a sidewall structure connecting the floor and roof, a melting zone being defined by the floor, roof and wall structure, and a plurality of burners, at least some of which are positioned to direct combustion products into the melting zone under a level of molten glass in the melting zone and form a turbulent molten glass, the melter vessel comprising a batch feeder attached to the wall or roof above the level, and an exit end comprising a melter exit structure for discharging the molten glass, the melter exit structure fluidly and mechanically connecting the melter vessel to a molten glass conditioning channel, the melter configured to produce an initial foamy molten glass having a density and comprising bubbles, at least some of the bubbles forming a bubble layer on top of the foamy molten glass; the molten glass conditioning channel comprising; a flow channel defined by a channel floor, a channel roof, and a channel wall structure connecting the channel floor and channel roof; the flow channel divided into a plurality of serial sections by a series of skimmers extending generally substantially vertically downward a portion of a distance between the channel roof and channel floor; one or more high momentum combustion burners positioned upstream of each skimmer in either the channel roof or channel sidewall structure, or both, to burst at least some foamed material retained behind the skimmers and floating on top of the molten mass of glass flowing in the flow channel by heat and/or direct impingement thereon; and one or more low momentum combustion burners positioned downstream of each skimmer in either the channel roof, the channel sidewall structure, or both, and positioned to transfer heat to the molten mass of glass without substantial interference from the foamed material.
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67. A method for conditioning molten glass comprising:
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a) routing an initial foamy molten glass into a conditioning channel, the initial foamy molten glass having a density and comprising bubbles, at least some of the bubbles forming a bubble layer on top of the foamy molten glass, the conditioning channel comprising a flow channel defined by a channel floor, a channel roof, and a channel sidewall structure connecting the channel floor and channel roof, the flow channel divided into a plurality of serial sections by a series of skimmers extending generally substantially vertically downward a portion of a distance between the channel roof and channel floor; b) positioning one or more high momentum combustion burners upstream of each skimmer in either the channel roof or channel sidewall structure, or both; c) operating the high momentum burners to route combustion products from the high momentum burners to impact at least a portion of bubbles in the bubble layer on the foamy molten glass retained behind the skimmers with sufficient force and/or heat to burst at least some of the bubbles; and d) positioning one or more low momentum combustion burners downstream of each skimmer in either the channel roof, the channel sidewall structure, or both; and e) operating the low momentum burners to route combustion products from the low momentum burners to transfer heat to the molten mass of glass without substantial interference from the foamed material.
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68. A method for conditioning molten glass comprising:
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a) melting glass-forming materials in a submerged combustion melter comprising a floor, a roof, and a sidewall structure connecting the floor and roof, the melter comprising one or more submerged combustion burners and a molten glass outlet, producing an initial foamy molten glass having a density and comprising bubbles, at least some of the bubbles forming a bubble layer on top of the foamy molten glass; b) routing the initial foamy molten glass into a conditioning channel, the conditioning channel comprising a flow channel defined by a channel floor, a channel roof, and a channel wall structure connecting the channel floor and channel roof, the flow channel divided into a plurality of serial sections by a series of skimmers extending generally substantially vertically downward a portion of a distance between the channel roof and channel floor; c) positioning one or more high momentum combustion burners upstream of each skimmer in either the channel roof or channel sidewall structure, or both; d) operating the high momentum burners to route combustion products from the high momentum burners to impact at least a portion of bubbles in the bubble layer on the foamy molten glass retained behind the skimmers with sufficient force and/or heat to burst at least some of the bubbles; e) positioning one or more low momentum combustion burners downstream of each skimmer in either the channel roof, the channel sidewall structure, or both; and f) operating the low momentum burners to route combustion products from the low momentum burners to transfer heat to the molten mass of glass without substantial interference from the foamed material.
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Specification