-
公开(公告)号：US20190284079A1
公开(公告)日：2019-09-19
申请号：US15922549
申请日：2018-03-15
摘要： A process and apparatus for manufacturing glass. A mixture of solid glass-forming materials comprising at least one fining agent are introduced into a doghouse located upstream of an elongated tank. The glass-forming materials are melted in the doghouse at a temperature at or above a fining-onset temperature of the at least one fining agent by application of heat from one or more submerged combustion burners. The resulting molten glass is relatively foamy and may comprise greater than 25 vol. % gas bubbles. The molten glass is directed from the doghouse into an upstream end of the tank where it is refined to produce molten glass having on average less than 20 seeds per ounce.
-
公开(公告)号：US10392286B2
公开(公告)日：2019-08-27
申请号：US15937696
申请日：2018-03-27
发明人： James C. Juranitch
摘要： Systems and methods for controlling the flow of vitrified material. In at least some embodiments, a vitrified material control system comprises a melt chamber (8) configured to contain a molten material (27) during operation of the control system; a siphon valve (11) configured to facilitate a flow of the molten material from the melt chamber; and a vacuum-generation system (26, 15, 16) configured to controllably deliver a vacuum to the molten material in the melt chamber and to thereby regulate a flow of the molten material from the melt chamber. In other embodiments, methods of controlling a flow of molten vitrified material from a heating device are disclosed. The methods may include, for example, applying a vacuum to the molten material to control a dwell time of the molten material in a vessel of the heating device and regulating the vacuum based on a measured temperature of the molten material.
-
公开(公告)号：US10384971B2
公开(公告)日：2019-08-20
申请号：US15173968
申请日：2016-06-06
发明人： Alexander Sorg , Matthias Lindig
摘要： A glass melting plant refiner for thermal post-treatment of a glass melt containing bubbles, in particular for the production of fiberglass. To reduce the glass melt bubble content produced by submerged combustion burners, a refiner forms a glass melt tank, the glass melt flowing through the tank in a transport direction. The tank has a floor, side walls and a superstructure. A barrier, forming a raised floor part, runs essentially in the transport direction. The barrier forms, at each lateral side, a channel-shaped constriction with the side walls, a width of each constriction transverse to the transport direction being at most 0.45 times the tank width. At least one first fossil fuel heater heats the glass melt from above. At least one second electrical heating device, in each side wall and/or in the floor of the tank in the region of each constriction, extends into the glass melt.
-
公开(公告)号：US10343941B2
公开(公告)日：2019-07-09
申请号：US15625551
申请日：2017-06-16
发明人： Scott Weil , Pramod K Sharma
摘要： Glass batch materials and processes for preparing and melting structured pellets of glass batch materials to produce molten glass. A structured pellet of glass batch materials may include a core and a shell surrounding the core. The core may include a mixture of glass-forming materials and the shell may include a thermally-activated material. The thermally-activated material may be formulated to undergo an exothermic chemical reaction when heated to a temperature at or above a threshold temperature such that heat is transferred from the shell to the mixture of glass-forming materials in the core.
-
公开(公告)号：US10280105B2
公开(公告)日：2019-05-07
申请号：US11760194
申请日：2007-06-08
摘要： A float glass chamber and related methods include a hot section having an atmosphere in at least the lower plenum with less than 3 percent hydrogen based on volume and a cold section having a different volume percent hydrogen.
-
36.发明授权公开(公告)号：US10233105B2
公开(公告)日：2019-03-19
申请号：US15293463
申请日：2016-10-14
申请人： JOHNS MANVILLE
摘要： Methods of melting particulate feedstocks in a submerged combustion melter employing an arrangement of one or more submerged combustion burners emitting combustion products into turbulent molten material. Operating the burners such that there is established a turbulent melting region extending vertically from the floor to a splash region, the splash region extending vertically between the turbulent melting region and a head space region, the head space region extending vertically between the splash region and the melter ceiling, the ceiling positioned above the floor a height H2. Feeding the particulate feedstock into the splash region through one or more inlet ports, the inlet ports positioned at a height H1 measured from the floor, where H1/H2 ranges from about 0.33 to about 0.67. The SCM may have a baffle extending from the ceiling into the splash region. A particulate feedstock conduit may be employed, having an exit port in the splash region.
-
公开(公告)号：US10208952B2
公开(公告)日：2019-02-19
申请号：US15107538
申请日：2014-12-19
发明人： Luc Jarry , Youssef Joumani , Bertrand Leroux , Remi Tsiava
摘要： Combustion method and installation in which an oxygen-rich oxidant is preheated by exchange of heat with a heat-transfer fluid, upstream of the combustion chamber, in which method and installation an auxiliary gas is heated by heat exchange with a first proportion of the hot flue gases discharged from the chamber, and in which method and installation the heat-transfer fluid comprises a mixture of at least a proportion of the heated auxiliary gas with a proportion of hot flue gases.
-
公开(公告)号：US20190031554A1
公开(公告)日：2019-01-31
申请号：US16061585
申请日：2016-12-16
发明人： Matthias OTTER , Walter LEHMANN , Michael HÜNERMANN , Nils Christian NIELSEN , Nigel Robert WHIPPEY , Boris GROMANN , Abdoul-Gafar KPEBANE
IPC分类号： C03C3/06 , B01J2/04 , B01J2/12 , C03B5/167 , C03B5/235 , C03B17/04 , C03B33/06 , C03B20/00 , C03B37/027 , C03B37/012 , C03C1/02 , C01B33/18
摘要： The invention relates to a process for the preparation of a quartz glass body comprising the process steps i.) Providing a silicon dioxide granulate, ii.) Making a glass melt out of silicon dioxide granulate in an oven and iii.) Making a quartz glass body out of at least part of the glass melt, wherein the oven comprises a standing sinter crucible. The invention further relates to a quartz glass body which is obtainable by this process. The invention further relates to a light guide, an illuminant and a formed body, which are each obtainable by further processing of the quartz glass body.
-
公开(公告)号：US20190023599A1
公开(公告)日：2019-01-24
申请号：US15748896
申请日：2016-07-28
发明人： Luc JARRY , Youssef JOUMANI , Gregoire BEASSE
摘要： The invention relates to a method and facility for manufacturing a fiberglass material, in which melted glass is produced in a melting furnace heated via combustion of a fuel with an oxygen-rich oxidant. The fumes generated are used to preheat a combustion reagent in two steps: a first step in which air is heated via heat exchange with the fumes, and a second step in which the combustion reagent is preheated via heat exchange with the hot air. The air is then used in the method for converting the melted glass into a fiberglass material.
-
40.发明授权公开(公告)号：US10183884B2
公开(公告)日：2019-01-22
申请号：US14785330
申请日：2013-05-30
申请人： JOHNS MANVILLE
IPC分类号： C03B5/23 , C03B5/235 , F23C3/00 , F23D14/22 , F23D14/32 , F23D14/48 , F23D14/58 , F23D14/70 , F23D14/78 , F23D14/04 , F27D99/00
摘要： Submerged combustion burners having improved fuel and oxidant mixing characteristics. Submerged combustion melters including the burners. Methods of using submerged combustion melters to melt glass-forming materials and produce molten glass.
-
-
-
-
-
-
-
-
-
搜索结果
834 条记录 (耗时 0.029 秒)