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    Limestone-gypsum flue gas desulfurization process
    2.
    发明授权
    Limestone-gypsum flue gas desulfurization process 失效
    石灰石 - 石膏烟气脱硫工艺

    公开(公告)号：US4487784A

    公开(公告)日：1984-12-11

    申请号：US350598

    申请日：1982-02-22

    申请人： Hiroshi Kuroda ,  Tsukasa Nishimura ,  Taiki Hashimoto ,  Masakatsu Nishimura ,  Osamu Kanda ,  Shigeru Nozawa

    发明人： Hiroshi Kuroda ,  Tsukasa Nishimura ,  Taiki Hashimoto ,  Masakatsu Nishimura ,  Osamu Kanda ,  Shigeru Nozawa

    IPC分类号： B01D53/50 ,  C01F11/46 ,  C01B17/00

    CPC分类号： C01F11/464 ,  B01D53/501

    摘要： A flue gas desulfurization process capable of producing a high purity gypsum and also making equipment employed as minimum as possible is provided, which process comprises the steps of cooling and dedusting flue gas containing SO.sub.x ; contacting the cooled gas with a slurry containing limestone to remove SO.sub.x by absorption and also form CaSO.sub.3 ; controlling the pH of the resulting slurry and then blowing air therein to form gypsum; and separating gypsum from the resulting slurry. As a modification of the above process, the slurry of the above second absorption step is further fed to the above first cooling step where unreacted limestone and SO.sub.x are reacted to form CaSO.sub.3.

    摘要翻译： 提供能够生产高纯度石膏的烟道气脱硫方法，并且尽可能地制备尽可能使用的设备，该方法包括冷却除尘含有SO x的烟道气的步骤; 将冷却的气体与含有石灰石的浆料接触以通过吸收除去SO x并且还形成CaSO 3; 控制所得浆液的pH，然后在其中吹入空气以形成石膏; 并从所得浆料中分离石膏。 作为上述方法的改进，将上述第二吸收步骤的浆料进一步进料到上述第一冷却步骤，其中未反应的石灰石和SOx反应形成CaSO 3。

    Wet-type exhaust gas desulfurizing apparatus
    4.
    发明授权
    Wet-type exhaust gas desulfurizing apparatus 失效
    湿式废气脱硫装置

    公开(公告)号：US5429808A

    公开(公告)日：1995-07-04

    申请号：US262771

    申请日：1994-06-20

    申请人： Hiroshi Kuroda ,  Shigeru Nozawa ,  Masakatsu Nishimura ,  Toshio Katsube ,  Takanori Nakamoto

    发明人： Hiroshi Kuroda ,  Shigeru Nozawa ,  Masakatsu Nishimura ,  Toshio Katsube ,  Takanori Nakamoto

    IPC分类号： B01D53/50 ,  B01D53/77 ,  B01F3/04 ,  B01F5/10 ,  B01F7/00 ,  F01N3/08 ,  C01B17/00

    CPC分类号： B01D53/504 ,  B01F3/04531 ,  B01F3/04539 ,  B01F3/04588 ,  B01F3/0473 ,  B01F3/04758 ,  B01F3/04836 ,  B01F2003/04546 ,  B01F2003/04553 ,  B01F2003/04645 ,  B01F2003/04687 ,  B01F2003/04723 ,  B01F5/10 ,  B01F7/00341 ,  B01F7/00641

    摘要： An apparatus for wet process exhaust gas desulfurization including a spraying portion for spreading absorbent slurry including calcium compound, an absorbing tower for bringing the absorbent slurry sprayed from the spraying portion into contact with exhaust gas including sulfur oxides from opposite directions so as to absorb the sulfur oxides in the exhaust gas into the absorbent slurry, a slurry tank disposed below the absorbing tower for receiving the absorbent slurry from the absorbing tower, a plurality of stirrers for stirring each stirrer being an axial flow type agitator having a propeller, and circular system for circulating the absorbent slurry from the slurry tank to the spraying portion. The apparatus further includes a plurality of nozzles for feeding oxidizer gas including oxygen into the absorbent slurry from a backside of each propeller towards a periphery thereof uniformly with respect to a circumferential direction, thereby bubbling the oxidizer gas finely around each propeller.

    摘要翻译： 一种用于湿法废气脱硫的装置，包括用于散布包含钙化合物的吸收浆料的喷射部分，用于使从喷射部分喷射的吸收剂浆料相对于包含硫氧化物的废气从相反方向接触以吸收硫的吸收塔 废气中的氧化物进入吸收剂浆料，设置在吸收塔下方的用于从吸收塔接收吸收剂浆料的浆料槽，用于搅拌每个搅拌器的多个搅拌器是具有螺旋桨的轴流式搅拌器，以及用于 将吸收剂浆料从浆料槽循环到喷射部分。 该装置还包括多个喷嘴，用于将相对于圆周方向均匀地从每个螺旋桨的后侧朝向周边的氧化剂气体（包括氧气）供入到吸收剂浆料中，从而使氧化剂气体围绕每个螺旋桨细分。

    Wet-type flue gas desulfurization plant and method making use of a solid desulfurizing agent
    6.
    发明授权
    Wet-type flue gas desulfurization plant and method making use of a solid desulfurizing agent 失效
    湿式烟气脱硫装置及使用固体脱硫剂的方法

    公开(公告)号：US5686053A

    公开(公告)日：1997-11-11

    申请号：US532759

    申请日：1995-10-11

    申请人： Hirofumi Kikkawa ,  Fumito Nakajima ,  Hiroyuki Kaku ,  Shigehito Takamoto ,  Hiroshi Ishizaka ,  Shigeru Nozawa ,  Masakatsu Nishimura ,  Takanori Nakamoto

    发明人： Hirofumi Kikkawa ,  Fumito Nakajima ,  Hiroyuki Kaku ,  Shigehito Takamoto ,  Hiroshi Ishizaka ,  Shigeru Nozawa ,  Masakatsu Nishimura ,  Takanori Nakamoto

    IPC分类号： B01D53/34 ,  B01D53/50 ,  C01F11/06 ,  B01D53/78

    CPC分类号： B01D53/502 ,  B01D53/501 ,  B01D53/504 ,  B01D53/508 ,  Y10S423/05

    摘要： A wet-type flue gas desulfurization method and plant making use of a solid desulfurizing agent in which exhaust gas exhausted from a combustion apparatus such as a boiler is brought into contact with absorbing liquid to absorb sulfur oxide from the exhaust gas into the absorbing liquid followed by neutralization of the absorbing liquid containing the sulfur oxide thus absorbed. The solid desulfurizing agent is selectively retained in an absorbing liquid neutralizing zone and the absorbing liquid, containing water as a main constituent and solid products formed from the absorbed sulfur oxide, is selectively removed from the neutralizing zone. In the neutralizing zone the upward flow of the absorbing liquid, optionally augmented by an upward flow of air or water, forms a fluidized bed of limestone particles, thereby preventing coating of the limestone by gypsum and thereby retaining reactivity of limestone. According to the present invention, coexistence of Al and F in the absorbing liquid seldom deteriorates the desulfurizing performance. Further, it is possible to reduce power and cost required to grind limestone and to achieve a higher desulfurizing performance.

    摘要翻译： PCT No.PCT / JP95 / 00921 Sec。 371 1995年10月11日第 102（e）1995年10月11日日期PCT提交1995年5月11日PCT公布。 公开号WO95 / 31272 日期：1995年11月23日一种湿式烟气脱硫方法和使用固体脱硫剂的设备，其中从锅炉等燃烧装置排出的废气与吸收液体接触以从排气中吸收硫氧化物 进入吸收液体，然后中和含有如此吸收的硫氧化物的吸收液体。 选择性地将固体脱硫剂保持在吸收液中和区中，从中和区选择性地除去以水为主要成分的吸收液和由吸收的硫氧化物形成的固体产物。 在中和区中，任选地通过向上的空气或水流增加的吸收液体的向上流动形成石灰石颗粒的流化床，从而防止石膏被石膏包覆，从而保持石灰石的反应性。 根据本发明，吸收液中Al和F的共存很少使脱硫性能下降。 此外，可以降低研磨石灰石所需的功率和成本，并且实现更高的脱硫性能。

    Wet-type flue gas desulfurization plant and method making use of a solid desulfurizing agent
    7.
    发明授权
    Wet-type flue gas desulfurization plant and method making use of a solid desulfurizing agent 失效
    湿式烟气脱硫装置及使用固体脱硫剂的方法

    公开(公告)号：US6080370A

    公开(公告)日：2000-06-27

    申请号：US207152

    申请日：1998-12-08

    申请人： Hirofumi Kikkawa ,  Fumito Nakajima ,  Hiroyuki Kaku ,  Shigehito Takamoto ,  Hiroshi Ishizaka ,  Shigeru Nozawa ,  Masakatsu Nishimura ,  Takanori Nakamoto

    发明人： Hirofumi Kikkawa ,  Fumito Nakajima ,  Hiroyuki Kaku ,  Shigehito Takamoto ,  Hiroshi Ishizaka ,  Shigeru Nozawa ,  Masakatsu Nishimura ,  Takanori Nakamoto

    IPC分类号： B01D53/34 ,  B01D53/50 ,  C01F11/06 ,  B01D53/78

    CPC分类号： B01D53/502 ,  B01D53/501 ,  B01D53/504 ,  B01D53/508 ,  Y10S423/05

    摘要： A wet-type flue gas desulfurization method and plant making use of a solid desulfurizing agent in which exhaust gas exhausted from a combustion apparatus such as a boiler is brought into contact with absorbing liquid to absorb sulfur oxide from the exhaust gas into the absorbing liquid followed by neutralization of the absorbing liquid containing the sulfur oxide thus absorbed. The solid desulfurizing agent is selectively retained in an absorbing liquid neutralizing zone and the absorbing liquid, containing water as a main constituent and solid products formed from the absorbed sulfur oxide, is selectively removed from the neutralizing zone. In the neutralizing zone the upward flow of the absorbing liquid, optionally augmented by an upward flow of air or water, forms a fluidized bed of limestone particles, thereby preventing coating of the limestone by gypsum and thereby retaining reactivity of limestone. According to the present invention, coexistence of Al and F in the absorbing liquid seldom deteriorates the desulfurizing performance. Further, it is possible to reduce power and cost required to grind limestone and to achieve a higher desulfurizing performance.

    摘要翻译： 使用固体脱硫剂的湿式烟道气脱硫方法和设备，其中从锅炉等燃烧装置排出的废气与吸收液体接触，从废气中吸收硫氧化物进入吸收液体，随后 通过中和含有如此吸收的硫氧化物的吸收液体。 选择性地将固体脱硫剂保持在吸收液中和区中，从中和区选择性地除去以水为主要成分的吸收液和由吸收的硫氧化物形成的固体产物。 在中和区中，任选地通过向上的空气或水流增加的吸收液体的向上流动形成石灰石颗粒的流化床，从而防止石膏被石膏包覆，从而保持石灰石的反应性。 根据本发明，吸收液中Al和F的共存很少使脱硫性能下降。 此外，可以降低研磨石灰石所需的功率和成本，并且实现更高的脱硫性能。

    Wet-type flue gas desulfurization plant and method making use of a solid desulfurizing agent
    8.
    发明授权
    Wet-type flue gas desulfurization plant and method making use of a solid desulfurizing agent 失效
    湿式烟气脱硫装置及使用固体脱硫剂的方法

    公开(公告)号：US5788944A

    公开(公告)日：1998-08-04

    申请号：US532758

    申请日：1995-10-11

    申请人： Hirofumi Kikkawa ,  Fumito Nakajima ,  Hiroyuki Kaku ,  Shigehito Takamoto ,  Hiroshi Ishizaka ,  Shigeru Nozawa ,  Masakatsu Nishimura ,  Takanori Nakamoto

    发明人： Hirofumi Kikkawa ,  Fumito Nakajima ,  Hiroyuki Kaku ,  Shigehito Takamoto ,  Hiroshi Ishizaka ,  Shigeru Nozawa ,  Masakatsu Nishimura ,  Takanori Nakamoto

    IPC分类号： B01D53/30 ,  B01D53/34 ,  B01D53/50 ,  B01D53/78 ,  F27B17/00

    CPC分类号： B01D53/346 ,  B01D53/30 ,  B01D53/501 ,  B01D53/504 ,  B01D53/78

    摘要： Exhaust gas from combustion equipment such as a boiler is brought into contact with an absorbing liquid to absorb sulfur oxide from the exhaust gas into the absorbing liquid. Limestone particles having larger diameters are selectively retained in a zone wherein the absorbing liquid that has absorbed the sulfur oxide from the exhaust gas is neutralized. The absorbing liquid containing water and the gypsum thereby formed, as main constituents, are selectively drained from the neutralizing zone and recycled for renewed contact with the exhaust gas. Because of the possibility of a large decrease of desulfurizing performance due to a variation in the load on the boiler, etc., at least one of the following is monitored: pressure drop across the neutralizing zone, torque of a stirring device, solids concentration in the absorbing liquid, specific gravity of the absorbing liquid and viscosity of the absorbing liquid. Responsive to the monitored parameters outlet SO.sub.2 concentration is controlled within a predetermined range by regulation of at least one of the following: flow rate of the absorbing liquid circulated into contact with the exhaust gas, amount of the solid desulfurizing agent added to the absorbing liquid, particle diameter of the solid desulfurizing agent and speed of agitation of the solid desulfurizing agent in the neutralizing zone.

    摘要翻译： PCT No.PCT / JP95 / 00922 Sec。 371 1995年10月11日第 102（e）1995年10月11日日期PCT提交1995年5月11日PCT公布。 出版物WO96 / 26785 日期1996年6月9日将诸如锅炉的燃烧设备的废气与吸收液体接触，以从废气中吸收硫氧化物进入吸收液体。 具有较大直径的石灰石颗粒选择性地保留在从废气中吸收硫氧化物的吸收液中和的区域中。 作为主要成分的含水和石膏的吸收液体被选择性地从中和区排出并再循环再次与废气接触。 由于锅炉等负荷变化导致脱硫性能大幅下降的可能性在以下至少一项被监测：中和区上的压降，搅拌装置的转矩，固体浓度 吸收液体，吸收液的比重和吸收液体的粘度。 响应于所监测的参数，出口SO2浓度通过调节以下至少一个来控​​制在预定范围内：循环与废气接触的吸收液体的流量，加入吸收液体中的固体脱硫剂的量， 固体脱硫剂的粒径和固体脱硫剂在中和区的搅拌速度。

    Method for controlling wet-process flue gas desulfurization
    9.
    发明授权
    Method for controlling wet-process flue gas desulfurization 失效
    湿法烟气脱硫控制方法

    公开(公告)号：US4836991A

    公开(公告)日：1989-06-06

    申请号：US41224

    申请日：1987-04-22

    申请人： Okikazu Ishiguro ,  Masakatsu Nishimura ,  Shigeru Nozawa ,  Hiromi Kamogawa ,  Shigeyoshi Kawano

    发明人： Okikazu Ishiguro ,  Masakatsu Nishimura ,  Shigeru Nozawa ,  Hiromi Kamogawa ,  Shigeyoshi Kawano

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

    CPC分类号： B01D53/501

    摘要： Optimum overall operation of a whole plant including a combustion unit such as a boiler and a wet-process flue gas desulfurization unit comprising an absorption column for removing sulfur dioxide from a flue gas from the combustion unit by absorption using a slurry of an absorbing agent such as limestone powder circulated through absorption column, recycle pumps for circulating the slurry through the absorption column and oxidation air blowers for supplying an oxidation air to the absorption column and a recycle tank is controlled by anticipating a future pH value of the circulating slurry and a future inlet sulfur dioxide content of the flue gas from a present pH value of the circulating slurry and a present inlet sulfur dioxide content of the flue gas and their change rates by computing, anticipating a future desulfurization ratio from both the anticipated pH value and inlet SO.sub.2 content and a recycle rate of the slurry, and controlling the recycle rate of the circulating slurry on the basis of the anticipated desulfurization ratio, where a desired desulfurization ratio can be readily and continuously maintained against any change in fuel species and load of a boiler with reduced utility consumption.

    摘要翻译： 包括诸如锅炉和湿式烟道气脱硫单元的燃烧单元的整个设备的最佳总体操作包括吸收塔，用于通过使用吸收剂的浆料吸收来自燃烧单元的烟道气中的二氧化硫， 作为通过吸收塔循环的石灰石粉末，用于使浆料循环通过吸收塔的再循环泵和用于向吸收塔供给氧化空气的氧化鼓风机和再循环罐通过预期循环浆料的未来pH值和未来来控制 来自循环浆料的现有pH值的烟道气的入口二氧化硫含量和烟道气的当前入口二氧化硫含量及其变化率通过计算，从预期的pH值和入口SO 2含量预测未来的脱硫比 和浆料的再循环率，并控制循环浆料的再循环率 以预期的脱硫比为基础，其中可以容易且持续地维持所需的脱硫比，以抵抗燃料种类的变化和具有降低的公用事业消耗的锅炉的负荷。

    Printing plate production apparatus
    10.
    发明授权
    Printing plate production apparatus 失效
    印版生产设备

    公开(公告)号：US4044385A

    公开(公告)日：1977-08-23

    申请号：US667144

    申请日：1976-03-15

    申请人： Masakatsu Nishimura ,  Shin Saito ,  Kunsei Tanabe ,  Yasusi Umeda ,  Seiji Arimatsu ,  Yasuyuki Takimoto

    发明人： Masakatsu Nishimura ,  Shin Saito ,  Kunsei Tanabe ,  Yasusi Umeda ,  Seiji Arimatsu ,  Yasuyuki Takimoto

    IPC分类号： B41C1/10 ,  G03F1/00 ,  G03G5/02 ,  G03G13/26 ,  G03G15/05 ,  G03G15/22 ,  G03G21/10 ,  H04N1/00 ,  H04N1/30

    CPC分类号： H04N1/00254 ,  G03F7/202 ,  G03G13/26 ,  G03G15/228

    摘要： Printing plate production apparatus wherein a latent image is formed at the surface of photoconductive insulating sheet, either by an optical system for effecting sheet exposure or by a laser emission scanning system which constitutes the terminal of a facsimile transmission system, this latent image is developed by toner particles, for example, which are applied on, but not fixed on the photoconductive sheet, the developed image is temporarily transferred onto a printing plate with which the photoconductive sheet is brought into pressure contact, and the printing plate carrying the developed image is exposed to light which may effect chemical changes in the printing plate to harden portion thereof unprotected by toner particles after which the printing plate receives treatment to remove toner particles and unhardened portions thereof. In the means of the invention a sheet carrying a developed image initially transmitted by a single facsimile transmission system may be employed as a master copy which is mounted in the exposure system and serves in production of a plurality of identical printing plates.

    摘要翻译： 通过用于实现片材曝光的光学系统或者构成传真传输系统的终端的激光发射扫描系统，在光电导绝缘片的表面上形成潜像的印版生产设备，该潜像由 将显影图像施加在但不固定在光电导片上的调色剂颗粒暂时转印到与感光体压力接触的印刷版上，并且承载显影图像的印版露出 可能影响印版中的化学变化以使未被调色剂颗粒保护的部分硬化，之后印版接受处理以除去调色剂颗粒和未硬化部分。 在本发明的手段中，可以采用携带初始由单传真传送系统传送的显影图像的纸张作为安装在曝光系统中并用于生产多个相同印版的主复印件。