METHOD OF CONSTRUCTING A STATIONARY COAL NOZZLE
    141.
    发明申请
    METHOD OF CONSTRUCTING A STATIONARY COAL NOZZLE 有权
    建立固定式煤气喷嘴的方法

    公开(公告)号:US20110210191A1

    公开(公告)日:2011-09-01

    申请号:US12713602

    申请日:2010-02-26

    Abstract: Disclosed herein is an apparatus and method of constructing a stationary wear-resistant stationary nozzle 200 and/or nozzle liner 230 for solid fueled furnaces. A transition section 210 is constructed from several flat pieces 211-218 several that may have identical starting shapes. This reduces manufacturing complexity and costs. All pieces 211-218 have a high-wear weld overlay on their inner surface 316, 416. Corner pieces 215-218 are folded into a corner shape at an outlet edge 412 and rolled into a curved shape at an inlet edge 411. Horizontal 211, 212 and vertical pieces 213, 214 are only rolled at an inlet edge 311. The pieces have seam tab 240 along longitudinal edges that are welded together to construct a transition section 210. The transition section 210 may be used as a liner to reduce wear in an existing stationary nozzle or may be constructed to be connected to an inlet piece 220 to form a strong, wear-resistant coal nozzle 200.

    Abstract translation: 本文公开了一种用于固体燃料炉的固定耐磨固定喷嘴200和/或喷嘴衬套230的构造的装置和方法。 过渡部分210由几个可具有相同起始形状的平片211-218构成。 这降低了制造复杂性和成本。 所有片211-218在其内表面316,416上具有高磨损焊接覆盖层。角片215-218在出口边缘412处折叠成角形,并在入口边缘411处卷成弯曲形状。水平211 ,212和垂直件213,214仅在入口边缘311处滚动。这些件具有沿着纵向边缘的接缝突片240,其被焊接在一起以构造过渡部分210.过渡部分210可以用作衬垫以减少磨损 在现有的固定喷嘴中,或者可以构造成连接到入口件220以形成坚固耐磨的煤喷嘴200。

    METHOD FOR DECREASING NITROGEN OXIDES OF A PULVERIZED COAL BOILER USING BURNERS OF INTERNAL COMBUSTION TYPE
    142.
    发明申请
    METHOD FOR DECREASING NITROGEN OXIDES OF A PULVERIZED COAL BOILER USING BURNERS OF INTERNAL COMBUSTION TYPE 审中-公开
    使用内燃机燃烧器减少燃烧煤锅炉的氮氧化物的方法

    公开(公告)号:US20110033807A1

    公开(公告)日:2011-02-10

    申请号:US12921658

    申请日:2008-06-18

    Abstract: A method for decreasing nitrogen oxides of a pulverized coal boiler using burners (2) of internal combustion type comprising: designing or changing all or part of burners of the pulverized coal boiler as internal combustion type burners (2), in which the ignition sources may be plasma generators (1) or ignition devices such as small oil guns etc., and the power thereof can be adjusted for controlling the ignition intensity in the burners (2). The burners (2) are interiorly divided into several stage combustion chambers (5) and are provided with pulverized coal concentrators (4) which do deep fuel staging in the burners (2). During the operation of the boiler, the ignition sources always keep in a working state, and the pulverized coal in the burners (2) is ignited stage by stage and is burnt in advance; decreasing the secondary air amount in the primary combustion zone (22) so that the primary combustion zone (22) is in a relatively strong reducing atmosphere and a high temperature and oxygen-deficient condition for inhibiting the generation of NOx is created; and supplying the remaining air from the upper of furnace of the boiler in the form of over-fire air, so that a deep air staging is carried out in the total furnace. Thus, the NOx generation of combustion can be effectively controlled on the premise of not decreasing the boiler efficiency.

    Abstract translation: 一种使用内燃式燃烧器(2)减少粉煤锅炉的氮氧化物的方法,包括:设计或改变作为内燃式燃烧器(2)的粉煤锅炉的全部或部分燃烧器,其中点火源可以 等离子体发生器(1)或小型油枪等点火装置,并且其功率可以被调节以控制燃烧器(2)中的点火强度。 燃烧器(2)内部分为几级燃烧室(5),并设置有在燃烧器(2)中进行深度燃料分级的粉煤集中器(4)。 在锅炉运行期间,点火源始终处于工作状态,燃烧器(2)中的粉煤逐级点火,并预先燃烧; 减少主燃烧区(22)中的二次空气量,使得第一燃烧区(22)处于相对较强的还原气氛中,并且产生用于抑制NOx的产生的高温和缺氧条件; 并且以过火空气的形式从锅炉的上部供应剩余的空气,使得在整个炉中进行深空气分级。 因此,在不降低锅炉效率的前提下,能够有效地控制NOx的产生。

    PLASMA IGNITION BURNER
    143.
    发明申请
    PLASMA IGNITION BURNER 审中-公开
    等离子体点火燃烧器

    公开(公告)号:US20090038518A1

    公开(公告)日:2009-02-12

    申请号:US12175963

    申请日:2008-07-18

    CPC classification number: F23D1/00 F23D2201/10 F23D2201/20 F23D2207/00

    Abstract: A plasma ignition burner. The plasma ignition burner has at least two stages of burner barrels and a plasma generator for igniting the pulverized coal in a first stage burner barrel of the at least two stages of burner barrels. The burning flame of the former stage burner barrel ignites the pulverized coal in the next stage burner barrel, or further burns with the supplemented air in the next stage burner barrel. The axial direction of said plasma generator is parallel to the direction along which the pulverized-coal-contained air flow enters into the first stage burner barrel and at the same time, parallel to the axis of the burner barrels.

    Abstract translation: 等离子点火燃烧器。 等离子体点火式燃烧器具有至少两级的燃烧器筒和等离子体发生器,用于在燃烧器筒的至少两个阶段的第一级燃烧器筒中点燃粉煤。 前一级燃烧器筒的燃烧火焰点燃下一级燃烧器筒中的粉煤,或者在下一级燃烧器筒中用补充空气进一步燃烧。 所述等离子体发生器的轴向方向平行于粉碎煤包含的空气流进入第一级燃烧器筒的方向,并且同时平行于燃烧器筒的轴线。

    Solid fuel burner, burning method using the same, combustion apparatus and method of operating the combustion apparatus

    公开(公告)号:US20070079736A1

    公开(公告)日:2007-04-12

    申请号:US11633489

    申请日:2006-12-05

    Inventor: Hirofumi Okazaki

    Abstract: A solid fuel burner using a low oxygen concentration gas as a transporting gas of a low grade solid fuel such as brown coal or the like and a combustion method using the solid fuel burner are provided. The solid fuel burner comprises a means for accelerating ignition of the fuel and a means for preventing slugging caused by combustion ash from occurring. Mixing of fuel and air inside a fuel nozzle 11 is accelerated by that an additional air nozzle 12 and a separator 35 for separating a flow passage are arranged in the fuel nozzle 11, and the exit of the additional air nozzle 12 is set at a position so as to overlap with the separator 35 when seeing from a direction perpendicular to a burner axis, and additional air is ejected in a direction nearly perpendicular to a flow direction of a fuel jet flowing through the fuel nozzle 11. An amount of air from the additional air nozzle 12 is varied corresponding to a combustion load. By increasing the amount of air from the additional air nozzle 12 at a low load operation, an oxygen concentration of a circulation flow 19 formed in a downstream portion outside the exit of the fuel nozzle 11 is increased to stably burn the fuel. By decreasing the amount of air from the additional air nozzle 12 at a high load operation, a flame is formed at a position distant from the fuel nozzle 11 to suppress radiant heat received by structures of the solid fuel burner and walls of the furnace.

    Nozzle and Method of Use
    145.
    发明申请
    Nozzle and Method of Use 审中-公开
    喷嘴和使用方法

    公开(公告)号:US20070029409A1

    公开(公告)日:2007-02-08

    申请号:US11461645

    申请日:2006-08-01

    Applicant: Mark Dupuis

    Inventor: Mark Dupuis

    CPC classification number: B05B1/341 F23D1/02 F23D2201/10 F23D2900/01001

    Abstract: A nozzle for controlling the spray pattern and the distribution of particles into a combustion chamber. The nozzle comprises a receiver in communication with a vortex chamber, which in turn is in communication with a discharge hood. The vortex chamber and the discharge hood are designed to reduce the air pressure within the nozzle, and to thereby decrease the velocity at which particles move through the nozzle. The nozzle further comprises a plurality of blades disposed on the vortex chamber which serve to control the spray pattern of the particles. The nozzle further optionally comprises a plurality of deflectors located on the discharge hood which further controls the spray pattern of the particles.

    Abstract translation: 用于控制喷射图案和颗粒分布到燃烧室中的喷嘴。 喷嘴包括与涡流室连通的接收器,涡流室又与排气罩连通。 涡流室和排气罩被设计成减小喷嘴内的空气压力,从而降低颗粒通过喷嘴移动的速度。 喷嘴还包括设置在涡流室上的多个叶片,其用于控制​​颗粒的喷雾图案。 喷嘴还可选地包括位于排气罩上的多个偏转器,其进一步控制颗粒的喷雾图案。

    A BURNER FOR A KILN
    146.
    发明申请
    A BURNER FOR A KILN 审中-公开
    一个烧窑

    公开(公告)号:WO2017108797A1

    公开(公告)日:2017-06-29

    申请号:PCT/EP2016/081933

    申请日:2016-12-20

    Applicant: FLSMIDTH A/S

    Abstract: A burner for a rotary kiln comprising - an elongated tubular body (6) having a longitudinal axis (L) and a discharge end (7) adjacent a combustion zone comprising a flame, - at least one fuel supply pipe for transporting and ejecting fuel through a fuel pipe outlet (10) at the discharge end (7), the fuel being alternative fuel or a mixture of alternative fuel and fossil fuel, and - at the discharge end (7), a number of high speed primary air jet outlets for ejecting primary air and being arranged, when seen towards the discharge end, along a closed line, such as a circle, outwardly of the fuel outlet (10) and surrounding the fuel outlet, wherein at least one of the primary air outlets and preferably a number of the primary air outlets comprise a single orifice outlet or a multiple orifice outlet forming a flat jet air outlet (11) having a major axis and a minor axis and being configured to eject a flat jet air stream (13) having a flat fan pattern with a predetermined fan angle v.

    Abstract translation: 一种用于回转窑的燃烧器,包括 - 具有纵向轴线(L)和邻近包括火焰的燃烧区域的排放端(7)的细长管状体(6), - 至少一种燃料 用于通过排出端(7)处的燃料管出口(10)输送和喷射燃料,所述燃料是替代燃料或替代燃料和化石燃料的混合物,以及 - 在排放端(7)处, 用于喷射一次空气的高速一次空气喷射出口,并且当朝向排出端看去时沿着诸如圆形的闭合线从燃料出口(10)向外且围绕燃料出口布置,其中至少一个 并且优选地多个主出气口包括形成具有长轴和短轴的扁平喷气出口(11)的单孔出口或多孔出口,并且构造成喷射扁平的喷射空气 (13)具有带有预定风扇的扁平扇形图案 角度v。

    固体燃料バーナ
    147.
    发明申请
    固体燃料バーナ 审中-公开
    固体燃料燃烧器

    公开(公告)号:WO2017002675A1

    公开(公告)日:2017-01-05

    申请号:PCT/JP2016/068469

    申请日:2016-06-22

    CPC classification number: F23D1/02 F23D1/00 F23D2201/10 F23D2201/20

    Abstract: バーナ中心軸周りに設けられ、火炉(13)に面する開口を有する直管部(2)と、直管部(2)に連続する曲管部(5)とを備え、曲管部(5)を流れる固体燃料とその搬送気体の混合流体を開口から火炉(13)に噴出するノズル(9)と、直管部(2)のバーナ中心軸側で混合流体に旋回を与える第一旋回器(6)と、第一旋回器(6)の下流のバーナ中心軸側で混合流体に第一旋回器(6)とは逆の旋回を与える第二旋回器(7)とを設けた固体燃料バーナ(1)である。曲管部(5)から流れる混合流体を、第一旋回器(6)により中心軸から径方向に移動させ、第二旋回器(7)により逆旋回をかけることで旋回強度が低減される。

    Abstract translation: 该固体燃料燃烧器(1)设置有:围绕燃烧器的中心轴设置的喷嘴(9),其包括具有与炉(13)相对的开口的直管部(2)和弯曲 与所述直管段(2)连续的管段(5),并且从所述开口到所述炉(13)喷射出固体燃料和所述固体燃料的载气并流动的流体混合物 在弯曲管部分(5)中; 第一旋流器(6),其在所述直管段(2)的燃烧器中心轴线侧给出所述流体混合物的漩涡; 以及第二旋流器(7),其在燃烧器中心轴线处在第一旋流器(6)的下游提供与第一旋流器(6)给出的涡流相反的涡流。 从弯曲管部(5)流出的流体混合物通过第一旋流器(6)从中心轴线径向移动,并且被第二旋流器(7)反向旋转以减小涡流强度。

    SOLID FUEL NOZZLE TIPS
    148.
    发明申请
    SOLID FUEL NOZZLE TIPS 审中-公开
    固体燃料喷嘴提示

    公开(公告)号:WO2016100544A1

    公开(公告)日:2016-06-23

    申请号:PCT/US2015/066151

    申请日:2015-12-16

    CPC classification number: F23D1/00 F23D2201/10

    Abstract: A solid fuel nozzle tip for issuing a flow of mixed solid fuel and air to a boiler includes a tip body having an inlet and an outlet defining a longitudinal axis therebetween. The tip body includes a slot on an inlet side of the tip body extending in a direction parallel to the longitudinal axis. The slot includes an opening facing the inlet side of the tip body and a recess formed at an angle with respect to the longitudinal axis to at least partially retain a pivot pin. A solid fuel nozzle assembly for issuing a flow of mixed solid fuel and air to a boiler includes a solid fuel nozzle tip with a tip body, as described above, and a locking plate operatively connected to the tip body to assist in retaining a pivot pin within the slot of the tip body.

    Abstract translation: 用于向锅炉发出混合固体燃料和空气流的固体燃料喷嘴尖端包括具有限定其间的纵向轴线的入口和出口的末端体。 尖端体包括在平行于纵向轴线的方向上延伸的尖端体入口侧的槽。 狭槽包括面向尖端体的入口侧的开口和相对于纵向轴线以一定角度形成的凹部,以至少部分地保持枢轴销。 用于向锅炉发出混合固体燃料和空气流的固体燃料喷嘴组件包括如上所述的具有尖端主体的固体燃料喷嘴尖端和可操作地连接到尖端体的锁定板,以有助于保持枢轴销 在尖端体的槽内。

    固体燃料バーナ
    149.
    发明申请
    固体燃料バーナ 审中-公开
    固体燃料燃烧器

    公开(公告)号:WO2013018328A1

    公开(公告)日:2013-02-07

    申请号:PCT/JP2012/004764

    申请日:2012-07-26

    Abstract:  燃料ノズル11の外周壁である隔壁29上のノズル11の出口端部に設二次空気流17の第一の案内部材34とその後方側の第二の案内部材35を設け、第二の案内部材35はノズル隔壁29の全周にわたって均等に配置される複数の冷却フィン36に保持され、第一の案内部材34は二次空気流17a、第二の案内部材35と隔壁29との隙間から第二の案内部材35の正面側へ導かれた二次空気流れ17bをバーナ中心軸から外向きの流れとして第二の案内部材35の正面側の冷却と燃焼灰の付着防止し、バーナ出口部での燃料の着火や火炎の安定性を維持する。

    Abstract translation: 第一引导构件(34),并且在其后侧具有用于二次空气流(17)的第二引导构件(35),设置在分隔件上的燃料喷嘴(11)的出口端部 29),其是喷嘴(11)的外周壁。 第二引导构件(35)由均匀地位于喷嘴隔板(29)的整个周边上的多个散热片(36)保持,第一引导构件(34)形成二次空气流(17a) 从第二引导构件(35)与隔壁(29)的间隙向第二引导构件(35)的前表面侧传导的二次空气流(17b)从第二引导构件 燃烧器,其防止燃烧灰在第二引导构件(35)的前表面侧上的冷却和附接,由此在燃烧器出口处保持燃料点火和燃烧稳定性。

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