公开(公告)号：US06190630B1

公开(公告)日：2001-02-20

申请号：US09026897

申请日：1998-02-20

申请人： Masakazu Onizuka ,  Toru Takashina ,  Kiyoshi Okazoe ,  Hiroyuki Katayama

发明人： Masakazu Onizuka ,  Toru Takashina ,  Kiyoshi Okazoe ,  Hiroyuki Katayama

IPC分类号： C01B1720

CPC分类号： B03C3/011 ,  B01D53/504

摘要： This invention provides a flue gas treating process for removing sulfur oxides and dust from exhaust gas containing sulfur oxides and dust by using an absorption tower into which an absorbing fluid containing an alkaline agent is sprayed, comprising the steps of equipping the absorption tower with integrally formed dust collection means comprising dust collecting plates and discharge electrodes, and with dust separation means for sweeping off the dust collected by the dust collection means; and treating the exhaust gas in the dust collection means and subsequently cleaning the exhaust gas in the absorption tower, whereby desulfurization and dust removal are effected while sweeping off the collected dust by the dust separation means. Thus, desulfurization and dust removal can be effected in a simple manner, and the capacity of an electrostatic precipitator installed on the upstream side can be reduced.

摘要翻译： 本发明提供一种烟道气处理方法，该方法用于通过使用喷射含有碱性试剂的吸收液的吸收塔来除去含有硫氧化物和灰尘的废气中的硫氧化物和灰尘，包括以下步骤：将吸收塔装配成一体形成 灰尘收集装置包括集尘板和放电电极，以及用于清除由集尘装置收集的灰尘的灰尘分离装置; 并且对灰尘收集装置中的废气进行处理，随后清洗吸收塔中的废气，从而在通过灰尘分离装置扫除所收集的灰尘的同时进行脱硫除尘。 因此，能够以简单的方式进行脱硫除尘，能够降低安装在上游侧的静电除尘器的容量。

公开(公告)号：US06932952B2

公开(公告)日：2005-08-23

申请号：US10851331

申请日：2004-05-24

申请人： Masakazu Onizuka ,  Toru Takashina

发明人： Masakazu Onizuka ,  Toru Takashina

IPC分类号： F23J15/04 ,  B01D53/14 ,  B01D53/34 ,  B01D53/50 ,  B01D53/77 ,  B05B7/04

CPC分类号： B01D53/504 ,  B01D53/1481 ,  Y02A50/2349

摘要： A wet type exhaust gas desulfurization method includes sucking liquid in a liquid reservoir containing a sulphur compound formed from sulphur dioxide contained in exhaust gas so as to form a flow of the liquid, reducing the flow of the liquid in diameter to form a depressurized region in the flow, the reducing including passing the liquid through a reduction section which includes a reduction section plate having a reduction section hole and a peripheral portion surrounding the reduction section hole, the peripheral portion protruding toward the upstream side of the flow, introducing air into the depressurized region so as to generate a mixture stream of the air and the liquid, and spouting the mixture stream into the liquid reservoir. The reducing includes forming cavities in the flow, the forming cavities includes shearing the flow, and the shearing includes bringing the flow into contact with the peripheral portion.

摘要翻译： 湿式废气脱硫方法包括将液体吸入含有由废气中所含的二氧化硫形成的硫化合物的液体储存器中，以形成液体流，减少直径的液体的流动，形成减压区域 所述流动，所述还原包括使液体通过还原部分，所述还原部分包括具有还原部分孔的还原部分板和围绕所述还原部分孔的周边部分，所述周边部分朝向所述流动的上游侧突出，将空气引入 减压区域，以产生空气和液体的混合物流，并将混合物流喷射到液体储存器中。 还原包括在流动中形成空腔，成形腔包括剪切流动，剪切包括使流体与周边部分接触。

公开(公告)号：US5653944A

公开(公告)日：1997-08-05

申请号：US587501

申请日：1996-01-17

申请人： Taku Shimizu ,  Koichiro Iwashita ,  Yoshikazu Endo ,  Masakazu Onizuka ,  Toru Takashina

发明人： Taku Shimizu ,  Koichiro Iwashita ,  Yoshikazu Endo ,  Masakazu Onizuka ,  Toru Takashina

IPC分类号： B01D24/00 ,  B01D53/50 ,  B01D53/73 ,  B01D50/00 ,  B01D53/02

CPC分类号： B01D53/73 ,  B01D24/002 ,  B01D53/504 ,  B01D2201/48

摘要： This invention is related to a slurry filtration device and the wet lime-gypsum flue-gas desulfurization system comprising a slurry filtration device for the separation (concentration) of gypsum. The slurry filtration device comprises tank that has a slurry supply pipe at its upper part and a filtrate-drain hole at its bottom, a layer of filter sand lying on its bottom, a slurry accumulator arranged on the layer of filter sand, and a vibrator set in said slurry accumulator for vibrating the slurry. The present invention not only improves the solid-liquid separability remarkably but also saves cost and space.

摘要翻译： 本发明涉及浆料过滤装置和湿法石膏 - 石膏烟气脱硫系统，其包括用于分离（浓缩）石膏的浆料过滤装置。 浆料过滤装置包括在其上部具有浆料供给管的罐，底部具有滤液排放孔，位于其底部的滤砂层，布置在过滤砂层上的浆料储存器和振动器 设置在所述浆料储液器中以使浆料振动。 本发明不仅显着提高了固液分离性，而且节省了成本和空间。

公开(公告)号：US06517792B2

公开(公告)日：2003-02-11

申请号：US09924378

申请日：2001-08-08

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： B01D5334

CPC分类号： C10M173/02 ,  B01D53/46 ,  B01D53/501 ,  C10M2215/042 ,  C10M2229/045 ,  C10M2229/046 ,  C10N2220/13 ,  C10N2240/58 ,  F23J15/003 ,  F23J15/022 ,  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° C. or less, dust is separated, Se is transformed into insoluble compound, and Se is separated; (2) combustion exhaust gas is cooled to 350° 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.

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。

公开(公告)号：US06773680B2

公开(公告)日：2004-08-10

申请号：US10294269

申请日：2002-11-14

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： B01J808

CPC分类号： C10M173/02 ,  B01D53/46 ,  B01D53/501 ,  C10M2215/042 ,  C10M2229/045 ,  C10M2229/046 ,  C10N2220/13 ,  C10N2240/58 ,  F23J15/003 ,  F23J15/022 ,  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° C. or less, dust is separated, Se is transformed into insoluble compound, and Se is separated; (2) combustion exhaust gas is cooled to 350° 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.

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。

公开(公告)号：US06896851B1

公开(公告)日：2005-05-24

申请号：US09529257

申请日：1999-08-10

申请人： Masakazu Onizuka ,  Toru Takashina ,  Takeo Shinoda

发明人： Masakazu Onizuka ,  Toru Takashina ,  Takeo Shinoda

IPC分类号： B01D53/50 ,  B01D53/78 ,  B01J10/00 ,  B01D53/34 ,  B01D53/77

CPC分类号： B01D53/78 ,  B01D53/504

摘要： The wet-gas desulfurizing apparatus according to this invention removes the oxides of sulfur, such as SO2, from combustion exhaust gas by scrubbing the combustion exhaust with an absorption liquid which contains an alkali. It includes: 1) a branch pipe to circulate the absorption liquid which is inserted into a collection tank, of which the end discharges the absorption liquid into the collection tank, and the branch pipe having an internal diameter of D; and 2) an air-blowing pipe in inject air into the branch pipe, of which the end is inserted at an insertion point located between 3 D and 10 D from the discharge end of the branch pipe. The end of the air-blowing pipe is inserted into the branch pipe, and has an appearance of a semicircular trough facing downstream toward the collection tank.

摘要翻译： 根据本发明的湿气脱硫装置通过用含有碱的吸收液清洗燃烧废气，从燃烧废气中除去SO 2氧化物，例如SO 2。 它包括：1）一根分支管，用于循环插入到收集罐中的吸收液体，其中末端将吸收液体排出到收集罐中，而分支管内径为D; 以及2）将喷射空气送入分支管中的空气喷射管，其末端从分支管的排出端位于3D与10D之间的插入点处插入。 吹气管的端部插入分支管中，并且具有朝向收集罐的下游的半圆形槽的外观。

公开(公告)号：US06814942B2

公开(公告)日：2004-11-09

申请号：US09751087

申请日：2000-12-29

申请人： Takeo Shinoda ,  Toru Takashina ,  Masakazu Onizuka

发明人： Takeo Shinoda ,  Toru Takashina ,  Masakazu Onizuka

IPC分类号： B01D5334

CPC分类号： B01D53/504

摘要： An oxygen-containing blowing device for use in a wet flue gas desulfurizer for removing SO2 from combustion exhaust gas by wet desulfurization includes a fluid reservoir for an absorbing fluid equipped with a delivery pipe for discharging the absorbing fluid so that its discharge end is open in said fluid reservoir, and an oxygen feed nozzle for injecting an oxygen-containing gas disposed in the area of the discharged stream in the discharge end of the delivery pipe.

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。