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    Supplying method of combustion air and the like
    111.
    发明专利
    Supplying method of combustion air and the like 失效
    燃烧空气的供应方式等

    公开(公告)号：JPS5956007A

    公开(公告)日：1984-03-31

    申请号：JP16315682

    申请日：1982-09-21

    Applicant: Babcock Hitachi Kk

    Inventor： MASAI TADAHISA ,  MIGAKI HITOSHI ,  UEMURA TOSHIO ,  MORITA SHIGEKI ,  ITAGAKI KIICHI

    IPC: F23C99/00 ,  F23C6/04 ,  F23C7/02

    CPC classification number: F23C6/047 ,  F23C2201/101

    Abstract: PURPOSE:To reduce an amount of NOX without increasing soot and dust in the exhaust gas by a method wherein a speed of air and the like fed from a multi- stage burner and an after-air port is gradually increased in sequence along a flowing direction of the combusted waste gas. CONSTITUTION:Air and the like are injected from each of the burners 3 to 5 and the throat parts of the after-air ports 6 and 7 and their injection speeds are set such that they are gradually increased in sequence from a lower stage burner 3, upper stage burner 5 and front and rear after-air ports 6 and 7 which are arranged along a flowing direction of the combustioned discharged gas as shown as a speed vector 9 of lower stage burner, a speed vector 10 of medium stage burner, a speed vector 11 of upper stage burner, a speed vector 12 of a front side after-air and a speed vector 13 of a rear side after-air. Thereby, it is made possible to reduce NOX without increasing the soot and dust in the discharged gas.

    Abstract translation: 目的：通过这样一种方法来减少NO x的量，不会由于多级燃烧器和后空气供给的空气等的速度沿流动方向逐渐增加， 的燃烧废气。 构成：从燃烧器3〜5的各个喷射空气等，再次喷出口6和7的喉部，喷射速度被设定为从下段燃烧器3依次逐渐增大， 上段燃烧器5以及下燃烧器的速度矢量9所示的燃烧排出气体的流动方向配置的前后排气口6和7，中级燃烧器的速度矢量10，速度 上级燃烧器的矢量11，前后侧空气中的速度矢量12和后侧空气中的速度矢量13。 由此，可以在不增加排出气体中的烟尘的同时减少NOX。

    Boiler device
    112.
    发明专利
    Boiler device 失效
    锅炉装置

    公开(公告)号：JPS5949410A

    公开(公告)日：1984-03-22

    申请号：JP15851982

    申请日：1982-09-11

    Applicant: Babcock Hitachi Kk

    Inventor： UEMURA TOSHIO ,  MASAI TADAHISA ,  MIGAKI HITOSHI ,  MORITA SHIGEKI ,  ITAGAKI KIICHI ,  NAKASHITA SHIGETO

    IPC: F23C99/00 ,  F23C6/04

    CPC classification number: F23C6/047 ,  F23C2201/101

    Abstract: PURPOSE:To enable to use as the fuel of a boiler coal containing high iron content without the occurrence of slagging, by a method wherein burners at plural stages are installed, coal containing high iron content is fed to the burner at a lowermost stage, and the burner at the uppermost stage takes the form of a denitrificating burner. CONSTITUTION:Burners 2, 3 and 4, positioned at the lower part of a boiler furnance 1, are aligned in 3 stages, the burners 2 at a lower stage and the burner 3 at a middle stage form a main burner, and the burner 4 at an upper stage forms a denitrating burner. Coal containing high iron content contained in a banker 5 is the coal which has the amount of iron in ash being 10% or more in consideration of the softening and the melting temperature of coal ash. Coal containing high iron content, pulverized by a mill 7, is fed to the burner at the lowermost stage through a fuel pipe 13 by an air fan 12 to charge it into the furnace 1. In the burner 2 at the lowermost stage, an air ratio is set to 1.0 to form an oxidizing atmosphere. Thus, ash content is prevented from softening and melting as in a reducing atmosphere. Meanwhile, in the burner 4 at the upper stage, an air ratio is set to 0.8 or less, whereby a reducing atmosphere is produced and a boiler is capable of achieving low NOX combustion.

    Abstract translation: 目的：为了能够作为含铁量高的锅炉煤燃料，不会发生排渣，通过安装多级燃烧器的方法，将含铁量高的煤料送入燃烧器的最下层， 最上层的燃烧器采用脱硝燃烧器的形式。 构成：位于锅炉1的下部的燃烧器2,3和4分为3级，下段的燃烧器2和中间级的燃烧器3形成主燃烧器，燃烧器4 在上段形成脱硝燃烧器。 考虑到煤灰的软化和熔融温度，含有高铁含量的煤含有煤灰，其中灰分中铁的含量为10％以上。 含有高铁含量的煤由磨机7粉碎，通过空气风扇12通过燃料管13在最下层进料到燃烧器中，将其装入炉1中。在最下段的燃烧器2中， 比为1.0，形成氧化气氛。 因此，如在还原气氛中那样，防止灰分含量被软化和熔化。 同时，在上段的燃烧器4中，空气比设定为0.8以下，由此产生还原气体，锅炉能够实现低NO X燃烧。

    PROCESS AND APPARATUS FOR MAKING A MINERAL MELT
    113.
    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
    115.
    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
    120.
    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。

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