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    Exhaust gas desulfurizing method and system therefor
    1.
    发明授权
    Exhaust gas desulfurizing method and system therefor 有权
    废气脱硫方法及其系统

    公开(公告)号：US06656440B2

    公开(公告)日：2003-12-02

    申请号：US09914778

    申请日：2001-09-05

    申请人： Toru Takashina ,  Naohiko Ukawa ,  Kenji Inoue

    发明人： Toru Takashina ,  Naohiko Ukawa ,  Kenji Inoue

    IPC分类号： B01D5350

    CPC分类号： B01D53/504 ,  B01D53/502 ,  B01D53/80

    摘要： A method and system for desulfurizing flue gas in which desulfurization is effected by bringing absorbent slurry containing limestone into contact with flue gas. The method classifies absorbent slurry extracted from a desulfurization absorber, returns a fine-side fluid to the desulfurization absorber, and sends a coarse-side fluid to a solid-liquid separator. Supplied limestone powder is mixed to yield limestone slurry by a solid-liquid mixer, and the limestone slurry is classified, sending the small-particle fluid component thereof to the desulfurization absorber, and sending the large-particle fluid component thereof to a limestone fine grinder. And, limestone contained in the large-particle fluid component is finely ground by the limestone fine grinder and the finely ground limestone is sent to the desulfurization absorber. According to the desulfurization method and system, the concentration of limestone in the desulfurization absorber is increased while the concentration of residual limestone in by-product gypsum is kept low, whereby the desulfurization performance of the absorber can be enhanced, and the operation power for the whole system can be decreased.

    摘要翻译： 通过使含有石灰石的吸收剂浆料与烟气接触来进行脱硫的脱硫烟道气的方法和系统。 该方法将从脱硫吸收器中提取的吸收剂浆料分类，将细边流体返回到脱硫吸收器，并将粗侧流体送至固液分离器。 将供给的石灰石粉末通过固液混合器混合，得到石灰石浆料，将石灰石浆料分级，将其中的小粒子流体成分送入脱硫吸收塔，将大颗粒流体成分送入石灰石细磨 。 并且，大颗粒流体组分中所含的石灰石由石灰石细研磨机精细研磨，精细研磨的石灰石被送到脱硫吸收器。 根据脱硫方法和系统，脱硫吸收剂中石灰石的浓度增加，副产物石膏中残留石灰石的浓度降低，吸收剂的脱硫性能可以提高， 整个系统可以减少。

    Method for desulfurizing exhaust smoke
    3.
    发明授权
    Method for desulfurizing exhaust smoke 失效
    排烟烟气脱硫方法

    公开(公告)号：US5284557A

    公开(公告)日：1994-02-08

    申请号：US720621

    申请日：1991-06-25

    申请人： Naohiko Ukawa ,  Susumu Okino ,  Toru Takashina ,  Masakazu Onizuka ,  Kenji Inoue

    发明人： Naohiko Ukawa ,  Susumu Okino ,  Toru Takashina ,  Masakazu Onizuka ,  Kenji Inoue

    IPC分类号： B01D53/60 ,  B01D53/50 ,  B01D53/74 ,  B01D53/77 ,  C25B1/00

    CPC分类号： B01D53/501

    摘要： A method for desulfurizing an exhaust gas containing SO.sub.2 and NO.sub.x in accordance with a wet lime process, the aforesaid desulfurizing method being characterized by comprising the steps of drawing a part of an absorbing slurry, subjecting a filtrate obtained by the solid-liquid separation of the drawn absorbing slurry to an electrolysis treatment in the presence of chlorine ions, or after adjusting the filtrate to pH 3-4, mixing a hydrochlorite with the filtrate, and then refeeding the filtrate as a make-up water to an absorbing tower.

    摘要翻译： 一种根据湿法石灰处理对含有二氧化硫和氮氧化物的废气进行脱硫的方法，上述脱硫方法的特征在于包括以下步骤：拉出一部分吸收浆料，将通过固液分离得到的滤液 在氯离子存在下进行电解处理，或将滤液调节至pH 3-4后，与滤液混合，然后将滤液作为补充水重新加入到吸收塔中。

    Method for desulfurizing exhaust smoke
    4.
    发明授权
    Method for desulfurizing exhaust smoke 失效
    用于去除排烟的方法

    公开(公告)号：US5192518A

    公开(公告)日：1993-03-09

    申请号：US701652

    申请日：1991-05-16

    申请人： Naohiko Ukawa ,  Susumu Okino ,  Toru Takashina ,  Masakazu Onizuka ,  Kenji Inoue

    发明人： Naohiko Ukawa ,  Susumu Okino ,  Toru Takashina ,  Masakazu Onizuka ,  Kenji Inoue

    IPC分类号： B01D47/00 ,  B01D53/50 ,  B01D53/77 ,  B03C1/00 ,  C01F11/46

    CPC分类号： C01F11/464 ,  B01D53/501

    摘要： For the purposes of solving a problem due to a fly ash and HF in an exhaust gas, maintaining the activity of calcium carbonate as an absorbent, and recovering a high-purity gypsum, there is here provided a method for desulfurizing an exhaust smoke which comprises the steps of leading the exhaust gas containing the fly ash to a gas absorbing step, removing SO.sub.2 and the fly ash from the exhaust gas by the use of an absorbing solution slurry containing calcium carbonate as an absorbent in the gas absorbing step, and blowing air into the absorbing solution slurry circulating through the gas absorbing step to oxidize it and to thereby produce the gypsum, the aforesaid method being characterized by drawing a portion of the absorbing solution slurry therefrom, leading it to a magnetic field to separate and recover the fly ash from the absorbing solution slurry, and then returning, to the gas absorbing step, a portion or all of the absorbing solution slurry from which the fly ash has been separated.

    Wet-type exhaust gas desulfurization system having a means for supplying air
    5.
    发明授权
    Wet-type exhaust gas desulfurization system having a means for supplying air 失效
    湿式废气脱硫系统，具有供给空气的装置

    公开(公告)号：US5209905A

    公开(公告)日：1993-05-11

    申请号：US803172

    申请日：1991-12-05

    申请人： Masakazu Onizuka ,  Kenji Inoue ,  Naohiko Ukawa ,  Susumu Okino ,  Toru Takashina

    发明人： Masakazu Onizuka ,  Kenji Inoue ,  Naohiko Ukawa ,  Susumu Okino ,  Toru Takashina

    IPC分类号： B01D53/18 ,  B01D53/34 ,  B01D53/50 ,  C01F11/46

    CPC分类号： C01F11/464 ,  B01D53/501 ,  B01D53/504 ,  Y10S261/75

    摘要： A wet-type exhaust gas desulfurization system comprises a reservoir for trapping an absorbing solution which has absorbed SO.sub.2 from exhaust gas; an absorbing solution circulating tank disposed directly under the reservoir; a plurality of bottom pipes which are installed at the bottom of reservoir and extend downward into the absorbing solution in the circulating tank and whose lower end is open, or drop pipes which depend into the absorbing solution and whose lower ends are open; and air supply pipe at least one end of which is open to the atmosphere; a pipe for discharging the air above the surface of absorbing solution onto the surface of solution in the reservoir; and a pipe for supplying the absorbing solution in the circulating tank to a spray nozzle at the upper part of the absorbing tower.

    摘要翻译： 湿式废气脱硫系统包括用于捕集从废气吸收SO 2的吸收溶液的储存器; 位于储存器正下方的吸收溶液循环罐; 多个底部管道，其安装在储存器的底部并向下延伸到循环罐中的吸收溶液中，并且其下端打开;或下降管，其依赖于吸收溶液并且其下端敞开; 空气供给管的至少一端向大气敞开; 用于将吸收溶液表面上方的空气排放到储存器中的溶液表面上的管道; 以及用于将循环罐中的吸收溶液供应到吸收塔上部的喷嘴的管道。

    Flue gas treating system and process
    7.
    发明授权
    Flue gas treating system and process 有权
    烟气处理系统及工艺

    公开(公告)号：US06863875B1

    公开(公告)日：2005-03-08

    申请号：US09658928

    申请日：2000-09-11

    申请人： Shinichiro Kotake ,  Kazuaki Kimura ,  Kazumitsu Suzuki ,  Naohiko Ukawa ,  Toru Takashina

    发明人： Shinichiro Kotake ,  Kazuaki Kimura ,  Kazumitsu Suzuki ,  Naohiko Ukawa ,  Toru Takashina

    IPC分类号： B01D53/60 ,  C01B17/96

    CPC分类号： B01D53/60 ,  B01D53/77

    摘要： In a flue gas treating system, an absorption tower (21), a reheating section (22) and a fan (23) are arranged in line on a vertical axis so as to function as at least a part of a stack for emitting the treated flue gas into the atmosphere. Moreover, in a flue gas treating process, the amount of ammonia injected in the denitration step (a denitrator (2)) and/or the amount of ammonia at a point downstream of the denitration step are determined so as to be on such an excessive level that ammonia or ammonium salt will remain in the flue gas introduced into the desulfurization step (absorption tower (21)). Thus, the size and cost of the equipment can be reduced.

    摘要翻译： 在烟道气处理系统中，吸收塔（21），再加热部分（22）和风扇（23）在垂直轴线上排成一列，以起到堆叠的至少一部分的作用， 烟气进入大气。 此外，在烟道气处理工序中，确定脱硝工序中注入的氨的数量（脱硝装置（2））和/或在脱硝工序的下游一点处的氨的量为过度 使得氨或铵盐保留在引入脱硫步骤（吸收塔（21））的烟道气中。 因此，可以减少设备的尺寸和成本。

    Gas-liquid contacting apparatus
    9.
    发明授权
    Gas-liquid contacting apparatus 失效
    气液接触装置

    公开(公告)号：US5605655A

    公开(公告)日：1997-02-25

    申请号：US413722

    申请日：1995-03-31

    申请人： Makiichi Ishihara ,  Takakazu Sunada ,  Shigeo Hasegawa ,  Naohiko Ukawa ,  Toru Takashina ,  Yukio Kita ,  Kouichiro Iwashita ,  Kousuke Yamashita ,  Junji Ozaki ,  Kaname Kaneshige

    发明人： Makiichi Ishihara ,  Takakazu Sunada ,  Shigeo Hasegawa ,  Naohiko Ukawa ,  Toru Takashina ,  Yukio Kita ,  Kouichiro Iwashita ,  Kousuke Yamashita ,  Junji Ozaki ,  Kaname Kaneshige

    IPC分类号： B01D53/18 ,  B01D53/50 ,  B01J10/00 ,  B01J19/26 ,  B05B15/06 ,  B01D53/34

    CPC分类号： B01J19/0066 ,  B01D53/185 ,  B01D53/504 ,  B01J10/002 ,  B01J19/26 ,  B05B15/069 ,  Y10S261/39 ,  Y10S261/75

    摘要： A gas-liquid contacting apparatus in which spray nozzles for spraying slurry solution upward are arranged in a tower body through which gas passes, wherein a liquid inlet portion of the spray nozzle is of a bell shape having a radius of curvature of 0.2 times or more of the diameter of a liquid discharge port of the spray nozzle, and a ceramic nozzle support structure comprises: (A) a ceramic nozzle having a ridge portion on the outer peripheral surface of a nozzle body; (B) a tightening flange including a flange body having an aperture larger than the outside shape of the nozzle body and a central cylindrical portion extending substantially concentrically with the nozzle body from lower surface of the flange body, the tightening flange having through holes in the wall of central cylindrical portion thereof; (C) a support nozzle consisting of a cylindrical body having an inside diameter larger than the central cylindrical portion of tightening flange and connected to the tightening flange by bolting via the flange body at the upper portion of the cylindrical body; and (D) an elastomeric resin filled in a space between the nozzle and the support nozzle so that the outside and inside of the central cylindrical portion of tightening flange are integrated via the through holes.

    摘要翻译： 一种气液接触装置，其中向上喷射浆液的喷嘴布置在气体通过的塔体中，其中喷嘴的液体入口部分具有曲率半径为0.2倍或更大的钟形形状 所述喷嘴支撑结构包括：（A）在喷嘴体的外周面上具有脊部的陶瓷喷嘴， （B）包括具有比所述喷嘴体的外形大的孔的凸缘体的紧固凸缘和从所述凸缘体的下表面与所述喷嘴体大致同心地延伸的中心圆筒部，所述紧固凸缘在所述凸缘主体中具有通孔 其中心圆柱形部分的壁; （C）支撑喷嘴，其由具有大于紧固凸缘的中心圆柱形部分的内径的圆柱形主体组成，并通过在圆柱体的上部处的凸缘体进行螺栓连接而与紧固凸缘连接; 和（D）填充在喷嘴和支撑喷嘴之间的空间中的弹性体树脂，使得紧固凸缘的中心圆柱形部分的外部和内部通过通孔一体化。