Batch charger for a melting furnace

    公开(公告)号:US12054414B2

    公开(公告)日:2024-08-06

    申请号:US17730908

    申请日:2022-04-27

    摘要: A feed assembly having a hollow tubular body and a batch charger disposed within the hollow tubular body is disclosed. The hollow tubular body extends along a central axis from a first end to a second end and, further, comprises a port that tapers from a first port end to a second port end at the second end of the tubular body. The batch charger includes a first charger end proximate the first end of the tubular body and a second charger end proximate the second end of the tubular body. The second charger end is spaced away from the second end of the tubular body to provide a port space within the port. An apparatus that includes a melting chamber and a feed assembly is also disclosed along with a method of feeding batch materials into a melting chamber.

    Method and apparatus for supplying pre-heated particulate mineral material for making a mineral melt

    公开(公告)号:US11878930B2

    公开(公告)日:2024-01-23

    申请号:US17368330

    申请日:2021-07-06

    摘要: A method and an apparatus for making a mineral melt having a cyclone furnace and a separating cyclone, the apparatus 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 the second pressure is higher than the 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 the material receiving conduit and the outlet conduit.

    MELTER FEEDING SYSTEM
    4.
    发明申请

    公开(公告)号:US20230097469A1

    公开(公告)日:2023-03-30

    申请号:US17952612

    申请日:2022-09-26

    申请人: KNAUF INSULATION

    摘要: The invention relates to a material feeding system (1) for a melter comprising: (i) a substantially horizontal feeding barrel (5) designed to feed solid material through the melter wall (9) into the melt (11) contained in the said melter, and arranged below the level (13) of the melt (11) contained in the melter (30), (ii) said feeding barrel (5) comprising a material input opening (15) and material output opening (17), the material output opening (17) leading into the melt (11) contained in the melter (30), said feeding barrel (5) comprising an internal feeder (20) designed to push solid material (7) loaded through the material input opening (15), in the direction of the longitudinal barrel axis (6) toward the material output opening (17), the end of the internal feeder (20) on the material output side extending at a minimum at a distance from the internal melter surface (19) of two (2) to ten (10) times the diameter of the feeding barrel (5), preferably three (3) to eight (8) times the diameter of the feeding barrel, more preferably three (3) to six (6) times the diameter of the feeding barrel or three (3) to five (5) times the diameter of the feeding barrel (5). The invention further covers a submerged combustion melter equipped with above material feeding system and a process for feeding material into a melter.

    METHODS FOR MANUFACTURING GLASS ARTICLES

    公开(公告)号:US20230049196A1

    公开(公告)日:2023-02-16

    申请号:US17961832

    申请日:2022-10-07

    摘要: Methods of producing a glass article include melting a first glass composition and feeding a second glass composition into the melter. Both glass compositions include the same combination of components but at least one component has a concentration that is different in each. At least three glass articles may be drawn from the melter, including: a first glass article formed from the first glass composition; at least one intermediate glass article composed of neither the first nor the second glass composition; and a final glass article not composed of the first glass composition. The concentration of the at least one component in the intermediate glass article may be between the concentration in the first and second glass compositions. The first glass article and final glass article may have differing values for certain properties, and the intermediate glass article may have an intermediate set of values for the same properties.

    Melters for glass forming apparatuses

    公开(公告)号:US11492281B2

    公开(公告)日:2022-11-08

    申请号:US16623621

    申请日:2018-06-27

    摘要: In embodiments, a melter for melting glass may include an inlet wall, an outlet wall opposite the inlet wall, and sidewalls extending from the inlet wall to the outlet wall. The inlet wall, outlet wall, and sidewalls define a glass melting space enclosed by a floor and a top. In embodiments, the inlet wall may comprise a glass contact wall comprising a glass contact surface facing the glass melting space. A superstructure of the inlet wall comprises a jack arch positioned over the glass contact wall and at least a portion of the glass melting space. A plane of an interior face of the jack arch and a plane of the glass contact surface are off-set in a horizontal direction. A vertical distance from the floor to an underside of the jack arch is less than a vertical distance from the floor to an underside of the top.

    Batch charger for a melting chamber

    公开(公告)号:US11358895B2

    公开(公告)日:2022-06-14

    申请号:US16192196

    申请日:2018-11-15

    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.

    SUBMERGED BURNER FURNACE
    9.
    发明申请

    公开(公告)号:US20210395127A1

    公开(公告)日:2021-12-23

    申请号:US17279329

    申请日:2019-09-25

    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.

    METHOD FOR PRODUCING GLASS ARTICLE
    10.
    发明申请

    公开(公告)号:US20210122658A1

    公开(公告)日:2021-04-29

    申请号:US16645045

    申请日:2018-09-11

    IPC分类号: C03B5/16 C03B5/027 C03B3/00

    摘要: A manufacturing method for a glass article includes a supply step of supplying a glass raw material onto a surface of a molten glass accommodated in a melting chamber of a glass melting furnace from a supply unit mounted to a front wall of the melting chamber, and a melting step of melting the supplied glass raw material through heating with an electrode immersed in the molten glass in the melting chamber. The method also includes an outflow step of causing the molten glass to flow outside the melting chamber from an outflow port provided at a rear wall of the melting chamber, wherein 60% to 95% of an area of the surface of the molten glass in the melting chamber is covered with the glass raw material supplied in the supply step.