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    WET-TYPE EXHAUST DESULFURIZING APPARATUS
    3.
    发明公开
    WET-TYPE EXHAUST DESULFURIZING APPARATUS 有权
    GERÄTZUR NASSENTSCHWEFELUNG VON ABGASEN

    公开(公告)号：EP2065083A1

    公开(公告)日：2009-06-03

    申请号：EP07828263.9

    申请日：2007-09-19

    申请人： BABCOCK-HITACHI K.K.

    发明人： UEDA, Takuro ,  NAKAMOTO, Takanori ,  KATAGAWA, Atsushi ,  OKURA, Hajime ,  ISHIZAKA, Hiroshi

    IPC分类号： B01D53/50 ,  B01D53/18 ,  B01D53/68 ,  B01D53/77

    CPC分类号： B01D53/504 ,  B01D53/185 ,  B01D2251/404 ,  B01D2251/608 ,  B01D2257/2045 ,  B01D2257/2047

    摘要： An absorbing tower (4) is provided in its side wall with a gas entrance (3) for introducing a combustion exhaust gas into the absorbing tower, and an absorbing liquid is sprayed from the nozzles (8a) of a spray header (8) into the exhaust gas (1) introduced to rise from the gas entrance (3). A trough (23) is arranged in the side wall of the absorbing tower (4) and above the gas entrance (3), and a nose (22) having a horseshoe shape in a top plan view and extending into tower is disposed in the tower side wall portion of the gas entrance (3) other than the portion arranging the trough (23) and at the same or at substantially the same height as the portion of the trough (23). The absorbing liquid, which is sprayed from the nozzle (8a) and drops along the absorbing tower wall portion, is rescattered to the center portion of the absorbing tower excepting the entrance of the absorbing tower, so that the gas-liquid contact efficiency is improved while suppressing an increase in pressure loss, thereby to prevent the drift of the gas at the tower wall portion.

    摘要翻译： 吸收塔（4）在其侧壁上设置有用于将燃烧废气引入吸收塔的气体入口（3），并且吸收液体从喷雾头（8）的喷嘴（8a）喷射到 从气体入口（3）引入的废气（1）。 在吸收塔（4）的侧壁和气体入口（3）的上方布置有槽（23），并且在顶部平面图中具有马蹄形并延伸到塔中的鼻子（22）设置在 气体入口（3）的除了设置槽（23）的部分以及与槽（23）的部分相同或基本相同的高度的塔侧壁部分。 从喷嘴8a喷射并沿着吸收塔壁部滴下的吸收液除了吸收塔的入口之外被再次吸收到吸收塔的中心部分，从而提高了气液接触效率 同时抑制压力损失的增加，从而防止塔壁部分处的气体漂移。

    IN-FURNACE GAS INJECTION PORT
    4.
    发明公开
    IN-FURNACE GAS INJECTION PORT 审中-公开
    ÖFFNUNGZUR EINSPRITZUNG VON GAS IN EINEN OFEN

    公开(公告)号：EP1995517A1

    公开(公告)日：2008-11-26

    申请号：EP06822958.2

    申请日：2006-10-27

    申请人： BABCOCK-HITACHI K.K.

    发明人： OCHI, Yusuke ,  BABA, Akira ,  KURAMASHI, Kouji ,  OKAZAKI, Hirofumi ,  TANIGUCHI, Masayuki

    IPC分类号： F23L9/02 ,  F23C99/00

    CPC分类号： F23C99/00 ,  F23C7/008 ,  F23C7/02 ,  F23C2201/101 ,  F23L9/02

    摘要： Tertiary nozzle (3) of port (31) for gas injection into furnace (34) comprising a contracted flow producing channel provided obliquely toward central axis (C) 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 (31) toward the central axis (C) and a velocity component heading along the central axis (C) toward the interior of the furnace, and comprising louver (32) disposed for guiding so that the gas flows along the surface of throat wall (26) 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.

    摘要翻译： 用于气体注入炉（34）的端口（31）的三级喷嘴（3）包括从气流的上游侧向中心轴线（C）倾斜设置的收缩流产生通道，使得气流具有从 所述端口（31）的外周侧朝向中心轴线（C），并且沿着中心轴线（C）朝向炉内部方向流动的速度分量，并且包括设置用于引导气体流动的百叶窗（32） 沿着扩大的管状结构的喉壁（26）的表面，其中气体通道在设置在收缩流产生通道的出口区域处的炉壁开口处扩大。 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，从而能够防止生成块状形式的熟料 通过灰附着和融合在炉壁的喉部扩大管部分的炉壁上。

    Pulverized coal burner
    6.
    发明公开
    Pulverized coal burner 失效
    煤粉燃烧器

    公开(公告)号：EP1351017A2

    公开(公告)日：2003-10-08

    申请号：EP03014608.8

    申请日：1998-07-15

    申请人： Hitachi, Ltd. ,  Babcock Hitachi K.K.

    发明人： Okazaki, Hirofumi ,  Kobayashi, Hironobu ,  Tsumura, Toshikazu ,  Kiyama, Kenji ,  Jimbo, Tadashi ,  Kuramashi, Kouji ,  Morita, Shigeki ,  Nomura, Shin-ichiro ,  Shimogori, Miki

    IPC分类号： F23D1/00

    CPC分类号： F23D1/00 ,  F23C2202/40 ,  F23C2900/09002

    摘要： The pulverized coal burner suitable for lowering the concentration of nitrogen comprises a pulverized coal nozzle (10) for jetting a mixture of pulverized coal and primary air, a secondary air nozzle (11) and a tertiary air nozzle (12), concentrically arranged around the outer periphery of the pulverized coal nozzle (10), and a tube expanded portion (20) at the end of a partition wall separating two adjacent air nozzles. A flow shift means for shifting the secondary air in the secondary air nozzle so as to flow along the tube expanded portion, for example a guide plate (30), is provided. The secondary air comes to be jetted outward by the guide plate, and mixing of the secondary air and the tertiary air with pulverized coals is delayed, whereby an amount of occurrence of NOx can be decreased. The guide plate (61) is a ring disposed in an outlet region of the secondary air nozzle (11), which ring has a taper-shaped ring portion for guiding a part of the secondary air (52) in a radially outward direction.

    摘要翻译： 适于降低氮浓度的粉煤燃烧器包括用于喷射粉煤和一次空气的混合物的粉煤喷嘴（10），二次空气喷嘴（11）和三次空气喷嘴（12），其同心地布置在 粉煤喷嘴（10）的外周和在分隔两个相邻空气喷嘴的分隔壁的端部处的管扩大部分（20）。 设置用于使二次风喷嘴中的二次空气沿着扩管部分（例如导向板（30））流动的流量切换装置。 二次空气由导板向外喷射，二次风和三次风与粉煤的混合被延迟，由此可以减少NOx的产生量。 导向板61是设置在二次空气喷嘴11的出口区域中的环，该环具有用于沿径向向外方向引导二次空气52的一部分的锥形环部。

    Pulverized coal combustion burner and combustion method thereby
    7.
    发明公开
    Pulverized coal combustion burner and combustion method thereby 有权
    由此粉煤燃烧器和燃烧方法

    公开(公告)号：EP0933592A3

    公开(公告)日：1999-09-15

    申请号：EP99101208.9

    申请日：1999-01-22

    申请人： Hitachi, Ltd. ,  Babcock Hitachi K.K.

    发明人： Okazaki, Hirofumi ,  Kobayashi, Hironobu ,  Tsumura, Toshikazu ,  Kiyama, Kenji ,  Jimbo, Tadashi ,  Kuramashi, Kouji ,  Morita, Shigeki ,  Nomura, Shinichiro ,  Shimogori, Miki

    IPC分类号： F23D1/00 ,  F23C7/02

    CPC分类号： F23C7/02 ,  F23C6/045 ,  F23C2201/101 ,  F23D1/00

    摘要： An object is to provide a pulverized coal combustion burner and a combustion method by the burner in which occurrence of NOx is small and unburnt carbons in combustion ashes are small. In a combustion method by a pulverized coal combustion burner which is provided with a pulverized coal nozzle (10) for injecting a mixture (13) of pulverized coal and air and an air nozzle (11) for injecting air (14), a combustion flame formed by the above-mentioned pulverized coal combustion burner forms a zone (17) of gas phase air ratio of 1 or less at a radially central portion of the flame and a zone (16) of gas phase air ratio of more than 1 outside the zone, in the vicinity of the burner jet port, and a zone of gas phase air ratio of 1 or less in the downstream side of the flame.

    摘要翻译： 本发明的目的在于提供一种粉碎煤燃烧器以及燃烧器的燃烧方法，其中，NOx的产生少且燃烧灰中的未燃烧碳少。 在具有用于喷射粉煤和空气的混合物（13）的粉煤喷嘴（10）和用于喷射空气（14）的空气喷嘴（11）的粉煤燃烧器的燃烧方法中，燃烧火焰 由所述粉煤燃烧器形成的气相空气比在所述火焰的径向中心部分处形成1或更小的区域（17），以及在所述火焰的径向中央部分处的气相空气比率大于1的区域（16） 在燃烧器喷射口附近区域以及火焰下游侧的气相空气比为1以下的区域。

    BOILER DEVICE
    8.
    发明公开
    BOILER DEVICE 有权
    锅炉设备

    公开(公告)号：EP2664847A1

    公开(公告)日：2013-11-20

    申请号：EP12734688.0

    申请日：2012-01-12

    申请人： BABCOCK-HITACHI K.K.

    发明人： ORII, Akihito ,  OKAZAKI, Hirofumi

    IPC分类号： F23C7/02 ,  F23C6/04 ,  F23L9/02

    CPC分类号： F23C7/02 ,  F23C6/04 ,  F23C7/004 ,  F23C2201/101 ,  F23C2900/06041 ,  F23C2900/07021 ,  F23D1/00 ,  F23D2201/20 ,  F23D2900/01001 ,  F23L9/02 ,  F23M5/08

    摘要： Areliable and cost-effective boiler equipped with a sound air supply nozzle which enables the following is provided: even when there is a gap between the nozzle provided in a through hole communicating with the interior of a furnace and the through hole, a strong swirl flow along the inner surface of the furnace wall can be formed; and burnout due to radiant heat can be suppressed. The air supply nozzle has the through hole in the furnace wall comprised of a water pipe, the nozzle supplying air is inserted into the through hole, and there is the gap between the nozzle and the through hole. The air supply nozzle is so configured that the position of the tip of the nozzle is located at a distance of 0.8 times the nozzle inside diameter or more away from the furnace wall inner surface and a tangential velocity component is given to gas jetting out of the nozzle.

    摘要翻译： 配备有良好的空气供应喷嘴的可靠且具有成本效益的锅炉提供如下：即使当设置在与炉内部连通的通孔中的喷嘴与通孔之间存在间隙时，强旋流 沿炉壁内表面可形成; 并且可以抑制由辐射热引起的燃尽。 供气喷嘴在炉壁上具有由水管构成的通孔，供给喷嘴的空气插入通孔中，并且在喷嘴和通孔之间存在间隙。 供气喷嘴构成为，喷嘴前端的位置位于喷嘴内径的0.8倍以上，离开炉壁内表面的位置，对喷出的气体赋予切向速度分量 喷嘴。

    WET FLUE-GAS DESULFURIZATION APPARATUS AND METHOD OF WET FLUE-GAS DESULFURIZATION
    9.
    发明公开
    WET FLUE-GAS DESULFURIZATION APPARATUS AND METHOD OF WET FLUE-GAS DESULFURIZATION 有权
    湿法烟气脱硫装置和湿法烟气脱硫方法

    公开(公告)号：EP1958682A1

    公开(公告)日：2008-08-20

    申请号：EP06810295.3

    申请日：2006-09-20

    申请人： BABCOCK-HITACHI K.K.

    发明人： ODA, Naoki ,  NAKAMOTO, Takanori ,  NOSAKA, Hiroyuki

    IPC分类号： B01D53/50 ,  B01D53/18 ,  B01D53/77

    CPC分类号： B01D53/504

    摘要： Exhaust (Flue) gas of boiler is introduced through gas inlet part (port) (2) of flue-gas desulfurization apparatus (system), and absorbent liquid sprayed from spray nozzle (5) of absorbent liquid spray section (4) is trapped (stored) in liquid trapping (recirculation tank) section (7). There, agitation is performed by means of propeller (11) of oxidation agitator (8) to thereby oxidize SO 2 absorbed from the exhaust (flue) gas into gypsum. In the liquid trapping section (7), oxidation air is fed from posterior air pipe (10) and anterior air pipe (13) behind and ahead of liquid propulsion (to the rear and front of a liquid discharge) by the propeller (11). Thus, even when the amount of oxidation air must be increased in accordance with an increase of boiler load, the oxidation efficiency can be enhanced without increasing of the number of agitators. Accordingly, there can be provided a wet flue-gas desulfurization apparatus (system) and method with which even when the amount of oxidation air fed to the liquid trapping section is increased, highly efficient oxidation can be performed without increasing the number of agitators installed and the operating cost.

    摘要翻译： 通过烟气脱硫装置（系统）的气体入口部（端口）（2）导入锅炉的排气（烟道气），吸收液喷射部（4）的喷雾喷嘴（5）喷射的吸收液被捕集 储存）在液体捕集（再循环罐）部分（7）中。 在那里，通过氧化搅拌器（8）的螺旋桨（11）进行搅拌，从而将从废气（烟道）吸收的SO 2氧化成石膏。 在液体捕集部7中，由推进器11将氧化空气从后空气管10和前空气管13供给到液体推进器的前后（液体排出的后部和前部） 。 因此，即使当随着锅炉负荷的增加必须增加氧化空气的量时，也可以在不增加搅拌器的数量的情况下提高氧化效率。 因此，可以提供一种湿式烟道气脱硫设备（系统）和方法，即使当供应到液体捕集部分的氧化空气的量增加时，也可以在不增加安装的搅拌器数量的情况下进行高效氧化; 营运成本。

    DENITRATION CATALYST, PROCESS FOR PREPARING THE SAME, AND EXHAUST GAS PURIFICATION METHOD
    10.
    发明授权
    DENITRATION CATALYST, PROCESS FOR PREPARING THE SAME, AND EXHAUST GAS PURIFICATION METHOD 失效
    脱硝催化剂，其制造方法及发射过程

    公开(公告)号：EP0937500B1

    公开(公告)日：2005-08-17

    申请号：EP98931027.1

    申请日：1998-07-09

    申请人： Babcock Hitachi K.K.

    发明人： IMADA, Naomi, Kure Res. Lab. of Babcock-Hitachi KK ,  KATO, Yasuyoshi, Kure Res. Lab. of Babcock-Hitachi

    IPC分类号： B01J33/00 ,  B01D53/56 ,  B01D53/86

    CPC分类号： B01J33/00 ,  B01D53/8628 ,  B01J21/063 ,  B01J23/22 ,  B01J23/24 ,  B01J37/0219 ,  B01J37/0244 ,  Y10S502/507

    摘要： A denitration catalyst for use in the reduction of nitrogen oxides contained in an exhaust gas containing highly deliquescent salts as dust with ammonia, which bears thereon a porous coating of a water-repellent organic resin, a porous coating of a mixture of a water-repellent organic resin with inorganic oxide particles, or a porous coating of a mixture of a water-repellent organic resin with catalyst component particles. The denitration catalyst can be prepared, for example, by coating the surface of a denitration catalyst with an aqueous dispersion containing a water-repellent organic resin having a lower concentration, drying the coating, further coating the dried coating with an aqueous dispersion containing a water-repellent organic resin having a higher concentration, and then drying the coating to form a porous coating of a water-repellent organic resin. This denitration catalyst, even when used in the treatment of an exhaust gas containing ash containing highly deliquescent salts, enables the water-repellent porous coating formed on the surface to prevent the salts that have deliquesced from entering the catalyst. This can prevent the deterioration of the catalyst and enables a high catalytic activity to be maintained for a long period of time.