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公开(公告)号：US5433936A
公开(公告)日：1995-07-18
申请号：US29430
申请日：1993-03-09
CPC分类号： B01D61/44 , B01D53/502
摘要： A flue gas desulfurization process which comprises the steps of absorbing and separating sulfur oxides from a combustion waste gas using a Ca compound and, as an absorption auxiliary agent, an organic acid which has carboxyl groups at opposite ends of a straight-chain hydrocarbon containing from 1 to 4 carbon atoms in a flue gas desulfurization apparatus, separating the waste water discharged from the desulfurization apparatus in an electrodialyzer which comprises an alternate array of univalent selective anion-exchange membranes and cation-exchange membranes into two solutions: a concentrated solution in which metallic and chlorine ions are concentrated and a dilute solution in which the metallic and chlorine ions are diluted and the organic acid is left behind, and then recycling the dilute solution as an absorbent to the flue gas desulfurization apparatus.
摘要翻译： 一种烟道气脱硫方法，包括以下步骤：使用Ca化合物吸收和分离来自燃烧废气的硫氧化物，并且作为吸收助剂，在含有 在烟道气脱硫装置中具有1至4个碳原子，将包含一价选择性阴离子交换膜和阳离子交换膜的交替排列的电渗析器中的脱硫装置排出的废水分离成两种溶液：浓缩溶液，其中 浓缩金属和氯离子，稀释金属离子和氯离子稀释后的有机酸，然后将作为吸收剂的稀释溶液再循环至烟道气脱硫装置。
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公开(公告)号：US06863875B1
公开(公告)日：2005-03-08
申请号：US09658928
申请日：2000-09-11
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。
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公开(公告)号：US5295400A
公开(公告)日：1994-03-22
申请号：US779189
申请日：1991-10-22
申请人： Atsushi Tatani , Naohiko Ukawa , Susumu Okino , Toru Takashina , Tsumoru Nakamura , Tokuma Arai , Yoshihiro Shiraishi
发明人： Atsushi Tatani , Naohiko Ukawa , Susumu Okino , Toru Takashina , Tsumoru Nakamura , Tokuma Arai , Yoshihiro Shiraishi
CPC分类号： G01N35/1097 , G01N1/2035
摘要： A slurry sampling device (3) for sampling a slurry in which solid particles are dispersed has upper and lower blocks (105, 109), and a rotator (102) for collection which is rotatably held between the blocks and has a plurality of through holes (111) each having a volume corresponding to the amount of sample to be collected. The upper and lower blocks are provided with slurry conduits (101, 108) and carrier fluid conduits (107, 110) which can be communicated with the through holes so that slurry and carrier fluid can flow therethrough. Arc-shaped long grooves (113, 114) are provided on portions of the upper and lower blocks where ends of the slurry conduits (101, 108) come into contact with, or are adjacent to, the rotator, so that at least one of the through holes is thereby constantly in contact with the long grooves. In the method for sampling slurry a part of the slurry is pumped (2) from a slurry tank (1) and returned (4) to the slurry tank, and that part of the slurry is sampled intermittently by the sampling device (3) and sent to an analyzer (6) for analysis of the composition of the slurry.
摘要翻译： 用于对其中分散有固体颗粒的浆料进行取样的浆料取样装置（3）具有上下块（105,109）和用于收集的旋转体（102），其被可旋转地保持在块之间并具有多个通孔 （111），每个具有对应于要收集的样品量的体积。 上部和下部块设置有可与通孔连通的浆液管道（101,108）和载体流体管道（107,110），使得浆料和载体流体可以流过其中。 在上部和下部块的部分上设置有弧形的长槽（113,114），其中浆料管道（101,108）的端部与旋转体接触或相邻，使得至少一个 因此通孔与长槽不断地接触。 在采样浆料的方法中，将一部分浆料从浆料罐（1）泵送（2）并返回（4）到浆料罐中，并且该部分浆料被取样装置（3）间歇地取样， 送到分析仪（6），分析浆料的组成。
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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。
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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.
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公开(公告)号：US06740297B2
公开(公告)日：2004-05-25
申请号：US10294204
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.
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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
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.
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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.
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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
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。
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10.发明授权Method of producing solid moldings from a by-product of wet limestone-gypsum desulfurization of flue gas 失效从烟气湿石灰石 - 石膏脱硫副产品生产固体成型品的方法
公开(公告)号：US5395561A
公开(公告)日：1995-03-07
申请号：US978259
申请日：1992-11-20
申请人： Naohiko Ukawa , Hiroshi Fujita , Toru Takashina , Masakazu Onizuka , Atsushi Tatani , Kenji Inoue , Tsuyoshi Ohishi
发明人： Naohiko Ukawa , Hiroshi Fujita , Toru Takashina , Masakazu Onizuka , Atsushi Tatani , Kenji Inoue , Tsuyoshi Ohishi
摘要： A method of producing solid molding products from a slurry which has undergone absorption in wet-limestone gypsum desulfurization of flue gas includes the steps of concentrating the gypsum-containing absorption slurry, mixing and kneading the solid concentrated slurry with flyash and quicklime or slaked lime, molding the mixture into a given shape using a mold and then curing a resulting molding product in a reaction chamber wherein a part of desulfurized gas is passed. The method also includes solidifying a molded product by drying with water-saturated hot air produced with heat recovered from the flue gas and with water added into a heat recovery process.
摘要翻译： 从在烟道气湿石灰石膏脱硫中经历吸收的浆料生产固体成型产品的方法包括浓缩含石膏的吸收浆料，将固体浓缩浆料与飞灰和生石灰或熟石灰混合和捏合的步骤， 使用模具将混合物成型为给定形状，然后在所述一部分脱硫气体通过的反应室中固化所得模制产品。 该方法还包括通过用从烟道气回收的热量产生的水饱和热空气和加入热回收过程中的水进行干燥来固化模制产品。
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