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公开(公告)号：US20230075323A1
公开(公告)日：2023-03-09
申请号：US17796630
申请日：2021-01-29
申请人： ROCKWOOL A/S
摘要： The invention provides a method to form a melt for making man-made vitreous fibres, in which mineral raw material is melted in a gas-fired cyclone furnace and the mineral charge comprises a material that comprises metallic aluminium.
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公开(公告)号：US20230040599A1
公开(公告)日：2023-02-09
申请号：US17880253
申请日：2022-08-03
申请人： Jeffrey C. Alexander
发明人： Jeffrey C. Alexander
摘要： Rotary heat-exchanger for glass batch and/or cullet, comprising a stationary casing having a gas inlet and outlet, and an interior region between the gas inlet and outlet; a chamber positioned in the casing rotatable with respect to the casing and configured to receive batch material or a mixture with cullet; at least one heat exchange tube in the casing in fluid communication with the gas inlet and outlet; a feeder in communication with the chamber and comprising a feeder housing configured to discharge the batch material or mixture of batch material and cullet into the chamber along an infeed length and in contact with the at least one tube; wherein the infeed length is a length effective to heat the batch or mixture with cullet material up to at least 100° C. in the infeed length. A method of preheating glass batch is also disclosed.
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公开(公告)号：US11441206B2
公开(公告)日：2022-09-13
申请号：US15989945
申请日：2018-05-25
发明人： Shailesh Pradeep Gangoli , Avishek Guha , Anshu Gupta , Reed Jacob Hendershot , Michael J. Gallagher , Martin Lawrence , Petr Tlamicha
摘要： A system and method of controlling a metal melting process in a melting furnace, including determining at least one furnace parameter characterizing a melting furnace, adding a charge containing solid metal into the melting furnace, detecting at least one charge parameter characterizing the charge, firing a burner into the melting furnace to provide heat to melt the charge, and exhausting burner combustion products from the furnace, detecting at least one process parameter characterizing progress of melting the charge, calculating a furnace efficiency based on the at least one furnace parameter, calculating a predicted process pour readiness time based on the at least one charge parameter, the at least one process parameter, and the furnace efficiency, and controlling the metal melting process based on the predicted process pour readiness time.
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公开(公告)号：US11358895B2
公开(公告)日：2022-06-14
申请号：US16192196
申请日：2018-11-15
发明人： Shane T. Rashley , Zhongming Wang
摘要： A feed assembly for a melting chamber having a plurality of walls and at least one submerged burner, and related methods of its operation are disclosed. The feed assembly includes a tubular body being hollow and having a first end and extending to a second end. The second end is for connecting to one of the plurality of walls. The tubular body further includes a port proximate the second end wherein the port has a first port end and tapers radially inwardly to a second port end at the second end. The feed assembly also has a batch charger disposed within the tubular body and having a first charger end and extending to a second charger end.
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公开(公告)号：US20210395127A1
公开(公告)日：2021-12-23
申请号：US17279329
申请日：2019-09-25
申请人： SAINT-GOBAIN ISOVER
摘要： A for melting batch material includes a furnace equipped with a submerged burner, a system for supplying the submerged burner with fuel gas and with oxidizer, a system for supplying the furnace with raw material including fragments of mineral wool below the surface of the molten batch materials, a system for supplying the furnace with raw material including a vertical duct for receiving raw material through its upper side and for conveying this raw material downward toward the molten batch materials. The duct receives the combustion flue gases originating from the furnace and conveys them upward through the raw material in the duct. A system supports the solid raw material in the duct and is positioned above the surface of the molten batch material and retains the solid raw material in the duct and lets descending molten raw material pass through to fall into the molten batch material.
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公开(公告)号：US20200317556A1
公开(公告)日：2020-10-08
申请号：US16910282
申请日：2020-06-24
摘要： A system for preheating batch materials in a glass melting furnace includes: a preheater configured to receive unheated batch materials and to deliver heated batch materials, the preheater including an outlet configured to exhaust fluid from the preheater and an inlet configured to receive exhaust fluid from the glass melting furnace and exhaust fluid recirculated from the outlet of the preheater; a fan configured to provide ambient air to a furnace flue; a valve configured to control an amount of the ambient air to the furnace flue; a temperature sensor configured to sense temperature of exhaust gases in the furnace flue; and a temperature controller configured to control the valve and the fan responsive to the temperature sensed by the temperature sensor.
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公开(公告)号：US20190330092A1
公开(公告)日：2019-10-31
申请号：US15966462
申请日：2018-04-30
摘要： A method of fabrication of arsenic glass, comprising forming pellets of an arsenic-containing glass-forming mixture comprising arsenic in a range between about 30 and about 50% w/w and glass forming elements, and melting the pellets by direct heating to a temperature in a range between about 950 and about 1250° C.
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8.发明申请公开(公告)号：US20180354836A1
公开(公告)日：2018-12-13
申请号：US15780717
申请日：2016-12-01
CPC分类号： C03B3/005 , C03B3/023 , C03B5/12 , F27B3/18 , F27D3/0033
摘要： A method and an apparatus for making a mineral melt having a cyclone furnace and a separating cyclone, said apparatus further having a device for supplying pre-heated particulate mineral material from a bottom of the separating cyclone to an inlet of the cyclone furnace. A material receiving conduit adapted for receiving the pre-heated particulate mineral material from the bottom outlet of the separating cyclone, in which the material receiving conduit has a first pressure. An outlet conduit supplying the particulate mineral material to the inlet of the cyclone furnace having a second pressure, wherein said second pressure is higher than said first pressure, and the particulate mineral material is fluidised and flows from the material receiving conduit to the outlet conduit. A gas-lock valve is provided between said material receiving conduit and said outlet conduit.
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公开(公告)号：US20180283789A1
公开(公告)日：2018-10-04
申请号：US15934245
申请日：2018-03-23
申请人： Hisashi Kobayashi , Kuang-Tsai Wu
发明人： Hisashi Kobayashi , Kuang-Tsai Wu
摘要： A thermochemical regenerator system is operated without encountering accumulation of unwanted solids on the interior surfaces of the passages through which flue gas passes.
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公开(公告)号：US09822027B2
公开(公告)日：2017-11-21
申请号：US14262113
申请日：2014-04-25
CPC分类号： C03B3/023 , C03B3/005 , C03B3/026 , C03B5/04 , C03B5/2356
摘要： 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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