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公开(公告)号：US07311887B2
公开(公告)日：2007-12-25
申请号：US11361148
申请日：2006-02-24
IPC分类号： B01D53/50
CPC分类号： B01D53/504 , B01D53/323 , B01D53/60 , B01D2251/2062 , B01D2259/818 , Y02A50/2348
摘要： A process reduces SOx emissions in a flue gas stream by adding a wet collector plate section to an existing electrostatic precipitator (ESP) or by converting the last field of an existing ESP to wet operation. To achieve the conversion, the last field or fields of an existing dry ESP are removed and replaced with components made from materials suitable for operation in a wet environment. After the ESP contains wet operation, ammonia is added to the flue gas stream while it is progressing through the collection plates in the ESP.
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公开(公告)号：US07156902B1
公开(公告)日：2007-01-02
申请号：US11121371
申请日：2005-05-04
申请人： Ralph F. Altman
发明人： Ralph F. Altman
摘要： A gas separation apparatus combines the technologies of electrostatic precipitators and centrifugal particle separators into a single unit. At an inlet into the gas separation apparatus, a water spray is introduced into the gas stream. The water spray may include various chemical additives, typically selected to react with or neutralize the particulates as they are mixed with the water or for other benefit. The resulting water and particulate mixture, which is much more dense than air, is centrifugally separated and collected through a drain tube outlet. In addition to the centrifugal forces applied to the gas and water stream, an electrical field of magnitude sufficient to produce coronal discharge is also applied to a central electrode. The electric field is generated between the cylinder wall and the central electrode, to assist the centrifugal forces and thereby remove additional particulate beyond that ordinarily removed by a standard centrifugal separator. A vortex finder surrounds the central electrode and protects the electrode from undesirable exposure to water splashes or the like, while assisting with the centrifugal separation. The novel separation apparatus and technique offer particular synergy when applied to the effluent stream from a fossil-fuel electric power plant or other similar gas streams.
摘要翻译： 气体分离装置将静电除尘器和离心式颗粒分离器的技术结合到一个单元中。 在气体分离装置的入口处，将水雾引入气流中。 水喷雾可以包括各种化学添加剂，通常选择它们与水混合或与其混合时与微粒反应或中和。 所得到的水和颗粒混合物比空气密度要高得多，通过排水管出口离心分离和收集。 除了施加到气体和水流的离心力之外，还能够向中心电极施加足以产生冠状放电的电场。 在气缸壁和中心电极之间产生电场，以帮助离心力，从而除去通过标准离心分离器通常除去的附加颗粒。 涡流探测器围绕中心电极并保护电极不受不良暴露于水溅等，同时辅助离心分离。 当应用于来自化石燃料发电厂或其它类似气流的流出物流时，新颖的分离装置和技术提供特定的协同作用。
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公开(公告)号：US5961693A
公开(公告)日：1999-10-05
申请号：US833886
申请日：1997-04-10
摘要： A two-stage electrostatic separator for separating particles from a particle laden gas stream includes a pre-charging section and spaced-apart gas-permeable grounded and discharge electrodes charged at opposite polarities and defining a separating section between them, the grounded electrode being positioned upstream from the discharge electrode. The particles in the particle laden gas stream are pre-charged to a certain charge in the pre-charging section and penetrate through the grounded electrode into the separating section, where the particles are separated from the particle laden gas stream. As a result, a clean gas stream exits from the separating section through the discharge electrode, and the particles separated from the particle laden gas stream are partially collected on the grounded electrode, and partially are removed with a bleed flow which is recirculated. The electrodes may be of linear or cylindrical shape, and linear electrodes may be arranged in a "zig-zag" order.
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公开(公告)号：US07416646B2
公开(公告)日：2008-08-26
申请号：US10782465
申请日：2004-02-19
申请人： Ralph F. Altman , Sam Rosen
发明人： Ralph F. Altman , Sam Rosen
IPC分类号： B01J19/08
CPC分类号： C04B18/08 , C01B13/11 , C01B2201/10 , C01B2201/22 , Y02W30/92
摘要： Disclosed is a method of treating, fly ash having an unacceptably high concentration of carbon, with ozone produced in situ by corona discharge. This method will allow high carbon-content fly ash to be used with air entrainment agents as an additive to cement. The corona discharge can be produced in the exhaust pipe with a venturi of various combustion systems. The device of this invention can be used in conjunction with a triboelectric carbon-fly ash separation system or in a conventional combustion system. The corona discharge is produced off of sharp-tipped metal devices. A venturi is used in the exhaust pipe in the exhaust pipe in conjunction with the sharp-tipped metal devices.
摘要翻译： 公开了一种处理具有不可接受的高浓度碳的飞灰的方法，其中通过电晕放电原位产生的臭氧。 该方法将允许高含碳烟灰与作为水泥添加剂的空气夹带剂一起使用。 可以在具有各种燃烧系统的文氏管的排气管中产生电晕放电。 本发明的装置可以与摩擦电碳 - 飞灰分离系统或常规燃烧系统结合使用。 电晕放电由锋利的金属器件产生。 结合锋利的金属装置，在排气管的排气管中使用文氏管。
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公开(公告)号：US07101422B1
公开(公告)日：2006-09-05
申请号：US11290761
申请日：2005-11-30
IPC分类号： B03C3/76
CPC分类号： B03C3/74 , B03C3/68 , Y10S323/903
摘要： A gas separation apparatus using electrostatic precipitators and mechanical rappers is enhanced by the addition of an opposite polarity refreshing power supply and a switching arrangement. The switching components selectively disconnect the primary power supply and connect the refreshing power supply to the electrostatic precipitator, causing an electrical impulse in the precipitator sufficient to dislodge precipitate from the collector plates. An RC filter is further provided to control the impulse and reduce the burden that would otherwise be placed upon the refreshing power supply. The novel separation apparatus and technique offer particular synergy when applied to the effluent stream from a coal-fired electric power plant or other similar gas streams.
摘要翻译： 使用静电除尘器和机械敲击器的气体分离装置通过添加相反极性的刷新电源和开关装置来增强。 开关组件选择性地断开主电源并将刷新的电源连接到静电除尘器，使得除尘器中的电脉冲足以从收集板上移除沉淀物。 还提供了一个RC滤波器来控制脉冲并减轻否则会在刷新电源上产生的负担。 当应用于来自燃煤电厂或其它类似气流的流出物流时，新颖的分离装置和技术提供特别的协同作用。
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公开(公告)号：US06395145B1
公开(公告)日：2002-05-28
申请号：US09653236
申请日：2000-08-31
申请人： Ralph F. Altman
发明人： Ralph F. Altman
IPC分类号： B01J1908
CPC分类号： C04B18/08 , C01B13/11 , C01B2201/10 , C01B2201/22 , Y02W30/92 , C04B20/02
摘要： Disclosed is a method of treating, fly ash having an unacceptably high concentration of carbon, with ozone produced in situ by corona discharge. This method will allow high carbon-content fly ash to be used with air entrainment agents as an additive to cement. The corona discharge can be produced in the exhaust pipe of various combustion systems. The device of this invention can be used in conjunction with a triboelectric carbon-fly ash separation system or in a conventional combustion system. The corona discharge is produced off of sharp-tipped metal devices.
摘要翻译： 公开了一种处理具有不可接受的高浓度碳的飞灰与通过电晕放电原位产生的臭氧的方法。 该方法将允许高含碳烟灰与作为水泥添加剂的空气夹带剂一起使用。 可以在各种燃烧系统的排气管中产生电晕放电。 本发明的装置可以与摩擦电碳 - 飞灰分离系统或常规燃烧系统结合使用。 电晕放电由锋利的金属器件产生。
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公开(公告)号：US07226570B2
公开(公告)日：2007-06-05
申请号：US10309364
申请日：2002-12-03
IPC分类号： B01D53/52
CPC分类号： F23J15/04 , B01D51/10 , B01D53/507 , B01D2251/2062 , F23J15/003 , F23J2215/20 , F23J2217/101 , F23J2217/102 , F23J2219/10 , F23N5/003
摘要： An algorithm process for treating fly ash found in flue gas to prevent rapping reentrainment of fly ash particles comprising adding ammonia to the fly ash particles in a stoichometric amount of one part or somewhat less of ammonia to one part of sulfur trioxide, such that rapping reentrainment of fly ash particles in the flue gas is prevented. An algorithm is used to determine the amount of sulfur in the flue gas.
摘要翻译： 一种用于处理在烟道气中发现的飞灰的算法方法，以防止粉煤灰颗粒的敲击再吸入，包括以一定量的一部分或稍微少一点的氨与一部分三氧化硫将粉煤灰颗粒加入到飞灰颗粒中，使得敲击再吸入 烟气中的飞灰颗粒被阻止。 使用算法来确定烟道气中的硫含量。
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公开(公告)号：US5683494A
公开(公告)日：1997-11-04
申请号：US746640
申请日：1996-11-13
CPC分类号： B07B7/086 , B01D45/16 , B03C3/15 , B04C11/00 , B04C3/06 , B04C5/04 , B04C5/14 , B04C2009/001
摘要： An electrostatically enhanced separator (EES) which provides mechanical separation and electrostatic separation to yield a compact and highly efficient separation system. The EES (10) may be incorporated in a collection system as well using a conventional collection device such as a cyclone collector (32), bag filter (37) or electrostatic precipitator (38). The EES (10) includes a cylindrical-walled separation chamber (11) with an inlet passage (13), a clean flow outlet (21), and a particle outlet passage (15). The inlet passage (13) and particle outlet passage (15) are both thin elongated slits which open tangentially to the cylindrical wall of the chamber for providing a substantially flush incoming flow path dispersed lengthwise along the wall.
摘要翻译： 静电增强分离器（EES），其提供机械分离和静电分离以产生紧凑且高效的分离系统。 也可以使用诸如旋风收集器（32），袋式过滤器（37）或静电除尘器（38）的常规收集装置将EES（10）并入收集系统中。 EES（10）包括具有入口通道（13），清洁流出口（21）和颗粒出口通道（15）的圆柱形壁分离室（11）。 入口通道（13）和颗粒出口通道（15）都是与室的圆柱形壁切向相切的细长狭缝，用于提供沿壁沿纵向分散的基本上齐平的进入流动路径。
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9.发明授权
公开(公告)号：US4872887A
公开(公告)日：1989-10-10
申请号：US243435
申请日：1988-09-12
摘要： A method is provided for enhancing the efficiency of fly ash collection in an electrostatic precipitator by lowering the resistivity of the fly ash particles in the flue gas, comprising the steps of introducing an aqueous solution of ammonium sulfate or ammonium bisulfate into a slipstream of hot flue gas or hot combustion air in a chamber external to the main flue gas duct wherein thermal decomposition is effected, removing the NH.sub.3 decomposition product by catalytic oxidation to increase the effectiveness of the SO.sub.3 decomposition product, and then distributing the SO.sub.3 decomposition product into the main flue gas stream exiting from the air preheater at a point upstream from the electrostatic precipitator.
摘要翻译： 提供一种通过降低烟道气中的飞灰颗粒的电阻率来提高静电除尘器中的粉煤灰收集效率的方法，包括以下步骤：将硫酸铵或硫酸氢铵的水溶液引入热烟道 气体或热燃烧空气在主烟道气管道外部的室内进行热分解，通过催化氧化除去NH 3分解产物，以提高SO3分解产物的有效性，然后将SO 3分解产物分配到主烟道 在静电除尘器上游的一点处从空气预热器排出的气流。
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公开(公告)号：US07413593B2
公开(公告)日：2008-08-19
申请号：US11338525
申请日：2006-01-24
CPC分类号： B03C3/68 , B03C3/74 , Y10S323/903
摘要： A gas separation apparatus using electrostatic precipitators and mechanical rappers is enhanced by the addition of an opposite polarity refreshing power supply and a switching arrangement. The switching components selectively disconnect the primary power supply and connect the refreshing power supply to the electrostatic precipitator, causing an electrical impulse in the precipitator sufficient to dislodge precipitate from the collector plates. In one embodiment, an RC filter is further provided to control the impulse and reduce the burden that would otherwise be placed upon the refreshing power supply. In a second embodiment, a pair of SCR strings serve as the switches. Cleaning power is delivered from a capacitor through one of the SCR strings using a resonant circuit, the resonance which causes the SCR string to commutate off after the impulse has been delivered. The capacitor is charged to a pre-calculated potential, dependent upon a measured potential just prior to delivery of the cleaning power, to ensure that the cleaning voltage stays below a corona onset voltage. The novel separation apparatus and technique offer particular synergy when applied to the effluent stream from a coal-fired electric power plant or other similar gas streams.
摘要翻译： 使用静电除尘器和机械敲击器的气体分离装置通过添加相反极性的刷新电源和开关装置来增强。 开关组件选择性地断开主电源并将刷新的电源连接到静电除尘器，使得除尘器中的电脉冲足以从收集板上移除沉淀物。 在一个实施例中，进一步提供RC滤波器以控制脉冲并减轻另外将被置于刷新电源的负担。 在第二实施例中，一对SCR串用作开关。 使用谐振电路从电容器通过SCR串中的一个SCR串来传送清洁电力，该谐振电路在脉冲输送之后导致SCR串整流。 电容器被充电到预先计算的电位，这取决于在传送清洁功率之前的测量电位，以确保清洁电压保持低于电晕起始电压。 当应用于来自燃煤电厂或其它类似气流的流出物流时，新颖的分离装置和技术提供特别的协同作用。
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