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    PROCESS AND APPARATUS FOR MAKING A MINERAL MELT
    1.
    发明申请
    PROCESS AND APPARATUS FOR MAKING A MINERAL MELT 审中-公开

    公开(公告)号：US20170321885A1

    公开(公告)日：2017-11-09

    申请号：US15533941

    申请日：2015-12-11

    Applicant: Rockwool International A/S

    Inventor： Lars Elmekilde Hansen

    IPC: F23C3/00 ,  F27B1/20 ,  C03B5/235 ,  F23L7/00 ,  C03B3/02 ,  F23C6/04 ,  C03B5/12 ,  F27B15/00

    CPC classification number: F23C3/008 ,  C03B3/026 ,  C03B5/12 ,  C03B5/2353 ,  F23C6/047 ,  F23C2201/101 ,  F23L7/007 ,  F23L2900/07007 ,  F27B1/20 ,  F27B15/003 ,  Y02E20/344 ,  Y02P40/55

    Abstract: The invention relates to a method of making a mineral melt, the method comprising providing a circulating combustion chamber which comprises an upper zone, a lower zone and a base zone, injecting primary particulate fuel and particulate mineral material and primary combustion gas into the upper zone of the circulating combustion chamber, thereby at least partially combusting the primary particulate fuel and thereby melting the particulate mineral material to form a mineral melt and generating exhaust gases, injecting into the lower zone of the circulating combustion chamber, through at least one first burner, secondary combustion gas and gaseous fuel and secondary particulate fuel, wherein the secondary combustion gas and gaseous fuel and secondary particulate fuel are injected via a single first burner, wherein the amount of secondary combustion gas injected via each first burner is insufficient for stoichiometric combustion of the total amount of gaseous fuel and secondary particulate fuel injected via that first burner, and injecting tertiary combustion gas into the lower zone of the circulating combustion chamber, through at least one tertiary combustion gas injector, whereby the tertiary combustion gas enables completion of the combustion of the gaseous fuel and the secondary particulate fuel, separating the mineral melt from the hot exhaust gases so that the hot exhaust gases pass through an outlet in the circulating combustion chamber and the mineral melt collects in the base zone. The invention also relates to apparatus suitable for use in the method.

    SOLID-FUEL-FIRED BURNER AND SOLID-FUEL-FIRED BOILER
    3.
    发明申请
    SOLID-FUEL-FIRED BURNER AND SOLID-FUEL-FIRED BOILER 审中-公开
    固体燃料燃烧器和固体燃料锅炉

    公开(公告)号：US20120152158A1

    公开(公告)日：2012-06-21

    申请号：US13381535

    申请日：2010-06-07

    Applicant: Keigo Matsumoto ,  Koutaro Fujimura ,  Kazuhiro Domoto ,  Toshimitsu Ichinose ,  Naofumi Abe ,  Jun Kasai

    Inventor： Keigo Matsumoto ,  Koutaro Fujimura ,  Kazuhiro Domoto ,  Toshimitsu Ichinose ,  Naofumi Abe ,  Jun Kasai

    IPC: F23D1/00 ,  F23L9/00 ,  F23L15/00 ,  F23K3/02

    CPC classification number: F23D1/00 ,  F23C6/045 ,  F23C2201/101 ,  F23C2201/20

    Abstract: A solid-fuel-fired burner that suppresses a high-temperature oxygen remaining region formed at the outer circumference of a flame and that can decrease the amount of NOx eventually produced is provided. A solid-fuel-fired burner that is used in a burner section of a solid-fuel-fired boiler for performing low-NOx combustion separately in the burner section and in an additional-air injection section and that injects powdered solid-fuel and air into a furnace includes a fuel burner having internal flame stabilization and a secondary-air injection port that does not perform flame stabilization, in which the air ratio in the fuel burner is set to 0.85 or more.

    Abstract translation: 提供一种固体燃料燃烧式燃烧器，其抑制形成在火焰外周的高温氧剩余区域，并且可以减少最终产生的NOx的量。 一种固体燃料燃烧式燃烧器，其用于固体燃料燃烧锅炉的燃烧器部分，用于在燃烧器部分和附加空气喷射部分中单独进行低NOx燃烧，并且喷射粉末状固体燃料和空气 包括具有内部火焰稳定性的燃料燃烧器和不进行火焰稳定化的二次空气喷射口，其中燃料燃烧器中的空气比设定在0.85以上。

    In-Furnace Gas Injection Port
    8.
    发明申请
    In-Furnace Gas Injection Port 审中-公开
    炉内气体注入口

    公开(公告)号：US20090087805A1

    公开(公告)日：2009-04-02

    申请号：US12224983

    申请日：2006-10-27

    Applicant: Yusuke Ochi ,  Akira Baba ,  Kouji Kuramashi ,  Hirofumi Okazaki ,  Masayuki Taniguchi

    Inventor： Yusuke Ochi ,  Akira Baba ,  Kouji Kuramashi ,  Hirofumi Okazaki ,  Masayuki Taniguchi

    IPC: F23D11/38 ,  F23D11/36

    CPC classification number: F23C99/00 ,  F23C7/008 ,  F23C7/02 ,  F23C2201/101 ,  F23L9/02

    Abstract: Tertiary nozzle of port for gas injection into furnace includes a contracted flow producing channel provided obliquely toward central axis from the upstream side of gas flow so that the gas flow has a velocity component heading from the outer circumferential side of the port toward the central axis and a velocity component heading along the central axis toward the interior of the furnace, and including louver disposed for guiding so that the gas flows along the surface of throat wall of enlarged pipe configuration wherein the gas channel is enlarged at a furnace wall opening disposed at an outlet area of the contracted flow producing channel. Accordingly, there can be provided a gas injection port that not depending on conditions, such as the flow rate of gas injected from the port, without inviting any complication of apparatus structuring or cost increase, enables preventing of the growth in lump form of clinker caused by ash adhesion and fusion on the wall surface of throat enlarged pipe portion of the furnace.

    Abstract translation: 用于气体注入炉的端口的三次喷嘴包括从气流的上游侧向中心轴线倾斜设置的收缩流产生通道，使得气流具有从端口的外周侧向中心轴线方向的速度分量， 沿着中心轴朝向炉内部的速度分量，并且包括设置用于引导的百叶窗，使得气体沿着扩大的管道结构的喉壁的表面流动，其中气体通道在设置在炉壁的炉壁开口处扩大 合约流产渠道出口面积。 因此，可以提供不依赖于从端口喷射的气体的流量等条件而不引起装置构造或成本增加的任何复杂性的气体注入口，能够防止生成块状形式的熟料 通过灰分粘附和融合在喉部扩大管部分的炉壁上。

    OVERFIRE AIR TUBE DAMPER FOR BOILER AND METHOD FOR REGULATING OVERFIRE AIR
    10.
    发明申请
    OVERFIRE AIR TUBE DAMPER FOR BOILER AND METHOD FOR REGULATING OVERFIRE AIR 有权
    用于锅炉的过热空气管阻尼器和用于调节过热空气的方法

    公开(公告)号：US20080283039A1

    公开(公告)日：2008-11-20

    申请号：US11749535

    申请日：2007-05-16

    Applicant: Robert W. Waltz ,  Quang H. Nguyen

    Inventor： Robert W. Waltz ,  Quang H. Nguyen

    IPC: F23L11/00

    CPC classification number: F23L9/02 ,  F23C2201/101 ,  F23L13/06

    Abstract: A damper and overfire air duct in a combustion system having a combustion structure defining a flue gas passage, the damper and overfire air duct including: an inlet to the overfire air duct and an outlet to the duct discharging overfire air into the flue gas passage, and the damper aligned with an axis of the overfire air duct, and having an open position axially distal to the inlet and a closed position at least partially in the inlet and duct, wherein the damper is movable axially between the open and closed positions.

    Abstract translation: 在具有限定烟道气通道的燃烧结构的燃烧系统中的阻尼器和过火空气管道，所述阻尼器和过火空气管道包括：过火空气管道的入口和管道的出口将过高的空气排放到烟道气通道中， 并且所述阻尼器与所述过火空气管道的轴线对准，并且具有至少部分地在所述入口和管道中轴向远离所述入口的开放位置和闭合位置，其中所述阻尼器可在所述打开位置和关闭位置之间轴向移动。

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