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    Wet flue gas desulfurization apparatus
    3.
    发明授权
    Wet flue gas desulfurization apparatus 失效
    湿式烟气脱硫装置

    公开(公告)号：US5762883A

    公开(公告)日：1998-06-09

    申请号：US665943

    申请日：1996-06-19

    申请人： Kiyoshi Okazoe ,  Eiji Ochi ,  Toru Takashina ,  Susumu Okino

    发明人： Kiyoshi Okazoe ,  Eiji Ochi ,  Toru Takashina ,  Susumu Okino

    IPC分类号： B01D53/34 ,  B01D53/50 ,  B01D53/77

    CPC分类号： B01D53/504

    摘要： This invention relates to a wet flue gas desulfurization apparatus including: an absorption tower having defined in the lower part thereof a tank for holding a calcium compound-containing slurry fed thereto; a circulating pump for delivering the slurry within the tank to the upper part of the absorption tower in order to bring it into contact with flue gas; air supply member for supplying air to the tank for purposes of oxidation; a withdrawal pump for withdrawing the slurry within the tank in order to recover gypsum formed as a by-product or discharge waste water; falling slurry withdrawal member for withdrawing part of the slurry delivered to the upper part of the absorption tower by the circulating pump and falling through the absorption tower at a position above the liquid surface of the tank; and mixing member for the slurry withdrawn by the falling slurry withdrawal member with the slurry withdrawn from the tank by the withdrawal pump, whereby oxidizing substances produced in the tank of the absorption tower can be decreased by reduction.

    摘要翻译： 本发明涉及一种湿式烟道气脱硫装置，包括：吸收塔，其下部具有用于保持供给其中含钙化合物的浆料的罐; 循环泵，用于将罐内的浆料输送到吸收塔的上部，以使其与烟气接触; 空气供给构件，用于向氧化槽供给空气; 用于取出罐内的浆料以便回收作为副产物形成的石膏或排出废水的抽出泵; 用于取出通过循环泵输送到吸收塔的上部的一部分浆料并且在罐的液面上方的位置落入吸收塔的落下浆料取出构件; 以及由下降浆料取出构件取出的浆料的混合构件，其中通过抽吸泵从罐中取出的浆料，由此通过还原可以减少在吸收塔的罐中产生的氧化物质。

    Combustion exhaust gas treatment system
    6.
    发明授权
    Combustion exhaust gas treatment system 失效
    燃烧废气处理系统

    公开(公告)号：US6113863A

    公开(公告)日：2000-09-05

    申请号：US592116

    申请日：1996-01-26

    申请人： Taku Shimizu ,  Kazuaki Kimura ,  Kiyoshi Okazoe ,  Atsushi Tatani ,  Naohiko Ukawa ,  Masao Hino ,  Susumu Okino ,  Takashi Haruki ,  Toru Takashina ,  Eiji Ochi

    发明人： Taku Shimizu ,  Kazuaki Kimura ,  Kiyoshi Okazoe ,  Atsushi Tatani ,  Naohiko Ukawa ,  Masao Hino ,  Susumu Okino ,  Takashi Haruki ,  Toru Takashina ,  Eiji Ochi

    IPC分类号： B01D53/46 ,  B01D53/50 ,  F23J15/00 ,  F23J15/02 ,  B01D50/00

    CPC分类号： C10M173/02 ,  B01D53/46 ,  B01D53/501 ,  F23J15/003 ,  F23J15/022 ,  C10M2215/042 ,  C10M2229/045 ,  C10M2229/046 ,  C10N2220/13 ,  C10N2240/58 ,  F23J2215/20 ,  F23J2219/50

    摘要： Five combustion exhaust gas treatment systems capable of removing dust and selenium (Se) in combustion exhaust gas and making harmless are proposed: (1) combustion exhaust gas is cooled to 350.degree. C. or less, dust is separated, Se is transformed into insoluble compound, and Se is separated; (2) combustion exhaust gas is cooled to 350.degree. C. or less, dust is separated, Se elution preventive agent is added, and dust is formed into scale; (3) dust in combustion exhaust gas is collected by dust collector, dust is formed into slurry by making use of part of circulation liquid in desulfurization apparatus, and tetravalent Se in dust slurry is transformed into insoluble compound, which is separated into solid and liquid; (4) dust is separated from combustion exhaust gas by dust collector, and it is heated to gasify Se, and is led into desulfurization apparatus, etc., and formed into slurry, and Se is made into insoluble compound; and (5) a treating agent for making tetravalent Se insoluble is added to part of circulation liquid in desulfurization apparatus, and it is sprayed into combustion exhaust gas to make Se insoluble.

    摘要翻译： 提出了能够除去燃烧废气中的灰尘和硒（Se），无害化的五种燃烧废气处理系统：（1）燃烧废气冷却至350℃以下，灰尘分解， 化合物，Se分离; （2）燃烧废气冷却至350℃以下，粉尘分离，加入Se洗脱剂，灰尘形成规模; （3）燃烧废气中的灰尘由集尘器收集，利用脱硫装置中循环液的一部分形成粉尘，并将粉尘浆中的四价硒转化为不溶性化合物，分离成固体和液体 ; （4）灰尘通过集尘器与燃烧废气分离，并被加热气化Se，并被引入脱硫装置等，形成浆料，Se成不溶性化合物; （5）在脱硫装置的一部分循环液中加入四价Se不溶性的处理剂，喷入燃烧废气中使Se不溶。

    Flue gas treating process and system
    7.
    发明授权
    Flue gas treating process and system 失效
    烟气处理工艺及系统

    公开(公告)号：US5840263A

    公开(公告)日：1998-11-24

    申请号：US848838

    申请日：1997-05-05

    申请人： Takeo Shinoda ,  Tamotsu Higuchi ,  Shinichiro Kotake ,  Kiyoshi Okazoe ,  Tatsuto Nagayasu ,  Koichiro Iwashita ,  Kenichiro Kawamichi ,  Susumu Okino ,  Toru Takashina

    发明人： Takeo Shinoda ,  Tamotsu Higuchi ,  Shinichiro Kotake ,  Kiyoshi Okazoe ,  Tatsuto Nagayasu ,  Koichiro Iwashita ,  Kenichiro Kawamichi ,  Susumu Okino ,  Toru Takashina

    IPC分类号： B01D53/50 ,  B01D53/34

    CPC分类号： B01D53/504

    摘要： A flue gas treating system for removing sulfur dioxide and dust present in flue gas by gas-liquid contact with an absorbing fluid and has an inlet side absorption tower of the liquid column type and an outlet side absorption tower of the liquid column type, each of which has a uniform cross-section over the area of gas-liquid contact, and the cross-section of flue gas in the inlet side absorption tower is smaller than the cross section of flue gas in the outlet side absorption tower. The inlet side absorption tower is constructed in the form of a parallel-flow absorption tower wherein the flue gas flows downward for favorable collection of dust and absorption of sulfur dioxide. The outlet side absorption tower is constructed in the form of a counter-flow adsorption tower wherein the flue gas flows upward for favorable absorption of sulfur dioxide. The absorbing fluid within a tank is injected upward from a plurality of spray pipes.

    摘要翻译： 一种烟气处理系统，用于通过与吸收液体的气液接触来除去烟道气中存在的二氧化硫和粉尘，并具有液柱型的入口侧吸收塔和液柱型的出口侧吸收塔， 在气液接触区域上具有均匀的横截面，入口侧吸收塔中烟道的横截面小于出口侧吸收塔中烟道气的横截面。 入口侧吸收塔以平行流式吸收塔的形式构成，其中烟道气向下流动，有利于收集灰尘和吸收二氧化硫。 出口侧吸收塔以逆流吸附塔的形式构成，其中烟道气向上流动以吸收二氧化硫。 罐内的吸收液体从多个喷射管向上注入。

    Wet exhaust gas desulfurization apparatus and method
    8.
    发明授权
    Wet exhaust gas desulfurization apparatus and method 失效
    湿法除气除气装置及方法

    公开(公告)号：US5221298A

    公开(公告)日：1993-06-22

    申请号：US827216

    申请日：1992-01-30

    申请人： Eiji Ochi ,  Kiyoshi Okazoe ,  Naohiko Ukawa ,  Susumu Okino ,  Masakazu Onizuka

    发明人： Eiji Ochi ,  Kiyoshi Okazoe ,  Naohiko Ukawa ,  Susumu Okino ,  Masakazu Onizuka

    IPC分类号： B01D53/50

    CPC分类号： B01D53/504 ,  B01D53/501

    摘要： A wet exhaust gas desulfurization apparatus includes a housing, an absorbing solution (3, B) stored in the lower portion of the housing, a flue (1, 2, 11, 12, 21, 25) above the surface of the absorbing solution, and a partition plate (4, 15, 25) for dividing the flue into gas inlet and outlet portions. Exhaust gas is introduced as an untreated combustion gas from a space above an absorbing solution (3) divided by a partition plate (4) into the wet exhaust gas desulfurization apparatus, the lower edge (5) of the partition plate is immersed in the solution, pressure of the exhaust gas lowers the upper level (6) of the solution on the upper side of the plate to a level (6') through which the gas passes and flows under the partition plate in contact with the solution leaving the solution on the other side of the plate and then discharges through a space above the absorbing solution on the other side of the partition plate. The plate may be raised and lowered by a rack (4') and pinion ( 4") device, and water jet devices (29) may be used to wash absorbing solution off the surfaces (27, 28) of the plate continuously or intermittently.