BIOMASS-MIXED, PULVERIZED COAL-FIRED BURNER AND FUEL COMBUSTION METHOD
    72.
    发明申请
    BIOMASS-MIXED, PULVERIZED COAL-FIRED BURNER AND FUEL COMBUSTION METHOD 审中-公开
    生物质混合,粉煤燃烧器和燃料燃烧方法

    公开(公告)号:US20150068438A1

    公开(公告)日:2015-03-12

    申请号:US14386951

    申请日:2013-03-21

    Abstract: A biomass-mixed, pulverized coal-fired burner is provided. The biomass-mixed, pulverized coal-fired burner is capable of burning biomass fuel as auxiliary fuel in large quantities and burning only pulverized coal when the biomass fuel is not sufficiently available. The biomass-mixed, pulverized coal-fired burner includes: a biomass fuel jet nozzle that extends axially along the biomass-mixed, pulverized coal-fired burner; a pulverized coal fuel jet nozzle that surrounds the biomass fuel jet nozzle; a secondary air nozzle that surrounds the pulverized coal fuel jet nozzle; and a tertiary air nozzle that surrounds the secondary air nozzle. A biomass fuel stream is jetted into an inside of a pulverized coal fuel flame formed in a furnace, the flame offering favorable ignition and flame holding performance.

    Abstract translation: 提供生物质混合粉煤燃烧器。 生物质混合粉煤燃烧器能够大量燃烧生物质燃料作为辅助燃料,当生物质燃料不足时,仅燃烧粉煤。 生物质混合粉煤燃烧器包括:生物质燃料喷嘴,其沿着生物质混合的粉煤燃烧器轴向延伸; 围绕生物质燃料喷嘴的粉煤燃料喷嘴; 围绕粉煤燃料喷嘴的二次空气喷嘴; 以及围绕二次空气喷嘴的三次空气喷嘴。 将生物质燃料流喷射到在炉中形成的粉煤燃料火焰的内部,该火焰提供有利的点火和火焰保持性能。

    NON-MELT AND PARTIAL MELT TYPE ENTRAINED FLOW BED GASIFIER
    73.
    发明申请
    NON-MELT AND PARTIAL MELT TYPE ENTRAINED FLOW BED GASIFIER 有权
    非熔体和部分熔融型浸入式流化床加气器

    公开(公告)号:US20140227142A1

    公开(公告)日:2014-08-14

    申请号:US14343113

    申请日:2013-04-26

    Abstract: The present invention relates to a cylindrical non-melt and partial melt type entrained flow bed gasifier with one or more burners mounted on the top thereof for supplying pulverized raw coal and oxidizer thereto, wherein each of the burners comprises three or four pipes so as to form a central supplying line for injecting the pulverized coal with a carrier gas into the gasifier, a primary oxidizer annular region around the central supplying line having a plurality of primary oxidizer supplying bores for injecting primary oxidizer vertically or at an angle to the injection region of the pulverized coal supplied through the central supplying line so as to direct the pulverized coal to the central region, and an outer cooling annular region around the primary oxidizer annular region for flowing cooling water, which is operated preferably at a temperature range of 1,250˜1,450° C., or of 1,150˜1,500° C. according to the properties of the coal. According to the present invention, the pulverized coal and oxidizer are properly mixed, and the pulverized coal is directed towards the middle of the gasifier, so that the reaction is completed with the ash being wholly non-melted or partially melted.

    Abstract translation: 本发明涉及一种圆柱形非熔体和部分熔融型夹带式流化床气化器,其中安装有一个或多个燃烧器,用于向其上提供粉碎的原料煤和氧化剂,其中每个燃烧器包括三个或四个管,以便 形成用于将粉煤与载气一起注入气化器的中央供应管线,围绕中央供应管线的主要氧化剂环形区域具有多个初级氧化剂供应孔,用于将初级氧化剂垂直注射或与注入区域 通过中央供给线供给的粉煤以将粉煤引导到中心区域,在主氧化剂环状区域周围的外部冷却环状区域用于使冷却水流动,优选在1,250〜约1,450℃的温度范围 根据煤的性质,或者1,150〜1500℃。 根据本发明,粉煤和氧化剂被适当混合,粉煤被引向气化器的中部,使得灰尘完全不熔化或部分熔化而完成反应。

    MULTI-PORT INJECTOR SYSTEM AND METHOD
    76.
    发明申请
    MULTI-PORT INJECTOR SYSTEM AND METHOD 审中-公开
    多端口喷射器系统和方法

    公开(公告)号:US20130160856A1

    公开(公告)日:2013-06-27

    申请号:US13334265

    申请日:2011-12-22

    Abstract: A feed injector system includes an injector nozzle. The injector nozzle includes a first injector port assembly having a first injector port located at a center of a longitudinal axis of the injector nozzle and defining a flow path for directing a first feed flow from a respective source into a reaction zone. The feed injector system also includes a second injector port assembly having one or more second injector passages arranged about a first circumference of the first injector port for receiving and injecting a second feed flow. Further, the feed injector system includes a third injector port assembly having a plurality of third ports arranged about a second circumference of the first injector port. The third ports are communicatively coupled to a plurality of toroidal flow paths and configured to receive and inject a third feed flow.

    Abstract translation: 进料喷射器系统包括喷射器喷嘴。 喷射器喷嘴包括第一喷射器端口组件,其具有位于喷射器喷嘴的纵向轴线的中心处的第一喷射器端口,并且限定用于将来自相应源的第一进料流引导到反应区域中的流动路径。 进料喷射器系统还包括第二喷射器端口组件,其具有围绕第一喷射器端口的第一圆周布置的一个或多个第二喷射器通道,用于接收和喷射第二进料流。 此外,进料喷射器系统包括第三喷射器端口组件,其具有围绕第一喷射器端口的第二圆周布置的多个第三端口。 第三端口通信地耦合到多个环形流动路径并且被配置为接收和注入第三馈送流。

    Compact pulverized coal burner
    77.
    发明授权
    Compact pulverized coal burner 有权
    紧凑型粉煤燃烧器

    公开(公告)号:US08196531B2

    公开(公告)日:2012-06-12

    申请号:US12151405

    申请日:2008-05-06

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

    Abstract: Disclosed is a burner for oxidant gasification of pulverized fuels under high pressures, e.g. 80 bar, and temperatures, e.g. 1200 to 1900° C., in reactors with liquid slag removal for oxygen gasification. The individual pulverized coal supply tubes in the burner are inclined toward the burner axis in the direction of the burner mouth, are implemented equiareally from the burner inlet up to the burner outlet, and end at the burner mouth adjacent to the oxidant outlet. Owing to the pulverized fuel feeding elements being implemented right up to the burner mouth and the instantaneous entry of the pulverized coal into the rotating oxygen stream there is no longer any areal discontinuity at the dust outlet, since here the pulverized coal stream is immediately sucked into the oxidant stream. At the outlet of the media the individual pulverized coal streams merge into a single rotating pulverized coal/oxygen stream, thereby achieving an even flame spread and stabilization.

    Abstract translation: 公开了一种用于高压下粉碎燃料的氧化气化的燃烧器,例如, 80巴,和温度,例如 1200至1900℃,在具有用于氧气气化的液体除渣的反应器中。 燃烧器中的单独的粉煤供应管沿着燃烧器口的方向朝向燃烧器轴线倾斜,从燃烧器入口等距地施加到燃烧器出口,并且在靠近氧化剂出口的燃烧器口处终止。 由于粉碎的燃料供给元件被直接施加到燃烧器口,并且粉煤瞬时进入旋转的氧气流中,在灰尘出口处不再具有任何区域不连续性,因为这里将粉煤流立即吸入 氧化剂流。 在介质的出口处,单个粉煤流合并成单个旋转的粉煤/氧气流,从而实现均匀的火焰蔓延和稳定化。

    METHOD OF CONSTRUCTING A STATIONARY COAL NOZZLE
    79.
    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
    80.
    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。

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