Fluidized bed system for removing particulate contaminants from a
gaseous stream
    1.
    发明授权
    Fluidized bed system for removing particulate contaminants from a gaseous stream 失效
    用于从气流中除去微粒污染物的流化床系统

    公开(公告)号:US4973458A

    公开(公告)日:1990-11-27

    申请号:US351136

    申请日:1989-05-09

    IPC分类号: B01D46/38 B01D53/12

    CPC分类号: B01D46/38 B01D53/12

    摘要: An apparatus and method for removing particulate contaminants, and optionally gaseous contaminants, from a hot gaseous stream where a vessel is provided containing a fluidized bed zone and the gases are passed through the fluidized bed zone containing a fluidized bed of granular media prior to passage of a major portion of the gas through a plurality of first hollow, ceramic, barrier filter elements at least partially disposed in the fluidized bed, and a minor portion thereof through a plurality of second hollow, ceramic, barrier polishing filter elements removed from the fluidized granular media. The plurality of first filter elements are scoured by the granular media to remove collected deposits while fine particulates collected on the plurality of second filter elements are removed by back flushing of a gas therethrough.

    摘要翻译: 一种用于从热气流中除去颗粒污染物和任选的气态污染物的装置和方法,其中提供含有流化床区的容器,并且气体在通过之前通过含有颗粒介质流化床的流化床区 气体的主要部分通过至少部分地设置在流化床中的多个第一中空陶瓷屏障过滤元件,以及其少部分通过从流化颗粒中除去的多个第二中空陶瓷屏障抛光过滤元件 媒体。 多个第一过滤元件被颗粒介质洗刷以除去所收集的沉积物,同时通过反向冲洗气体从而将多个第二过滤器元件上收集的细小颗粒除去。

    Compact ceramic tube filter array high-temperature gas filtration
    2.
    发明授权
    Compact ceramic tube filter array high-temperature gas filtration 失效
    紧凑型陶瓷管过滤器阵列高温气体过滤

    公开(公告)号:US4904287A

    公开(公告)日:1990-02-27

    申请号:US288698

    申请日:1988-12-22

    IPC分类号: B01D46/00 B01D46/24

    摘要: Disclosed is a hot gas filter system employing ceramic tube filters, or candles, in which the ratio of filter surface to system cross-section can exceed 50. The system includes a pressure vessel having an internal wall dividing the pressure vessel into first and second vessel portions, a gas inlet for directing a hot gaseous stream having particulate matter entrained therein into the first portion and a gas outlet for exhausting a filtered gaseous stream from the second vessel portion, a plurality of gas filter units supported by the internal wall and extending into the first vessel portion. Each filter unit includes a central gas plenum having an outer wall with one end of the outer wall attached to the internal wall, and a plurality of filter modules supported by the central gas plenum. Each module includes a ceramic tube, and support structure extending from the central gas plenum for supporting the ceramic tube and communicating gas between the ceramic tube and the central gas plenum. A backflow of gas is provided through the plurality of gas filter units to the ceramic tubes for periodically dislodging particulate matter from the outer surface of the tubes.

    摘要翻译: 公开了一种使用陶瓷管过滤器或蜡烛的热气体过滤器系统,其中过滤器表面与系统横截面的比率可以超过50.该系统包括压力容器,该压力容器具有将压力容器分成第一和第二容器 部分,用于将具有夹带在其中的颗粒物质的热气流引导到第一部分中的气体入口和用于从第二容器部分排出过滤的气态物流的气体出口,由内壁支撑并延伸到 第一容器部分。 每个过滤器单元包括中央气体增压室,其具有外壁,外壁的一端连接到内壁,以及多个由中央气体增压室支撑的过滤器模块。 每个模块包括陶瓷管,以及从中心气室延伸的支撑结构,用于支撑陶瓷管并在陶瓷管和中心气体充气室之间连通气体。 通过多个气体过滤器单元提供气体的回流到陶瓷管,用于从管的外表面周期性地移除颗粒物质。

    Apparatus and method for removing gaseous contaminants and particulate
contaminants from a hot gas stream
    4.
    发明授权
    Apparatus and method for removing gaseous contaminants and particulate contaminants from a hot gas stream 失效
    从热气流中除去气态污染物和微粒污染物的装置和方法

    公开(公告)号:US4973459A

    公开(公告)日:1990-11-27

    申请号:US351497

    申请日:1989-05-09

    IPC分类号: B01D46/34 B01D53/08 C10K1/30

    摘要: An apparatus and method for cleaning hot gases containing gaseous contaminants and particulate contaminants, including sticky components where a vessel contains a walled housing and a divider which separates an enclosed area therebetween into dirty and clean gas sections. A moving bed of coarse particulate material is contained in the walled housing with gases, after flow through a portion of the moving bed, passing into the second section where hollow, ceramic, barrier filter units remove the remaining solids therefrom. Sorbent material removes gaseous contaminants, sticky components are retained in the moving bed of coarse particulate material, and the filter units remove fines so that the hot gases are discharged clean from the vessel.

    摘要翻译: 一种用于清洁含有气态污染物和颗粒污染物的热气体的装置和方法,包括粘性组分,其中容器包含壁状壳体和将其间封闭区域分离成脏和清洁气体部分的分隔件。 粗粒状材料的移动床在流过一部分移动床之后被气体包含在带壁的壳体中,进入第二部分,其中中空的陶瓷阻挡过滤器单元从其中除去剩余的固体。 吸附剂材料除去气体污染物,粘性组分保留在粗颗粒材料的移动床中,并且过滤器单元去除细粉,使得热气体从容器中清洁出来。

    High temperature, high pressure gas filter system
    5.
    发明授权
    High temperature, high pressure gas filter system 失效
    高温高压气体过滤系统

    公开(公告)号:US4764190A

    公开(公告)日:1988-08-16

    申请号:US13300

    申请日:1987-02-10

    摘要: A filtering apparatus for separating particulates from high temperature, high pressure gas streams has a vessel divided into upper and lower chambers by a tubesheet, the tubesheet having a flexible support means with the rim thereof resting in a groove in outwardly extending flange portions securing together upper and lower sections of the vessel wall. The flexible support means for the tubesheet has a cylindrical wall depending from a support plate and a conical wall depending from the rim, the two walls secured together, with insulation between and about the walls. The vessel is insulated and preferably has a steam coil cooling device in the lower section thereof. A backflush system includes vertically spaced rows of pipes having tubes depending therefrom directed to the open tops of the filter elements, with the spaced rows connected together by pivotal links, and alignment means provided to align the open ends of the tubes with the open tops of the filter elements. The apparatus may use hollow, ceramic, tubular filter elements or hollow ceramic fabric filter elements.

    摘要翻译: 用于从高温高压气流中分离微粒的过滤装置具有通过管板分成上室和下室的容器,管板具有柔性支撑装置,其边缘处于凹槽中,该槽沿向外延伸的凸缘部分固定在一起 和血管壁的下部。 用于管板的柔性支撑装置具有从支撑板和从边缘悬垂的锥形壁的圆柱形壁,两个壁固定在一起,在壁之间和周围具有绝缘。 容器是绝缘的,并且在其下部优选具有蒸汽盘管冷却装置。 反吹系统包括垂直间隔排的管,其具有从其指向过滤器元件的敞开顶部的管,其中间隔开的排通过枢转连杆连接在一起,以及对准装置,其被设置成将管的开口端与 过滤元件。 该设备可以使用中空陶瓷,管状过滤元件或中空陶瓷织物过滤元件。

    Production of high purity silicon by a heterogeneous arc heater reduction
    6.
    发明授权
    Production of high purity silicon by a heterogeneous arc heater reduction 失效
    通过异质电弧加热器生产高纯度硅

    公开(公告)号:US4239740A

    公开(公告)日:1980-12-16

    申请号:US42474

    申请日:1979-05-25

    CPC分类号: C01B33/033

    摘要: A process for converting silicon intermediates to high purity silicon by an arc heater characterized by the steps of preliminarily reacting gaseous silicon intermediate, such as a silicon halide, with a metal reductant, such as sodium, to form preliminary reaction products including small solid silicon particles and droplets of salt of the metal reductant, at temperatures below the boiling point of the metal reductant, subsequently heating the reaction products to temperatures above said boiling point in an arc heater chamber to convert the reaction products to droplets of silicon to merge and form larger silicon droplets, and thereafter separating the mixture of silicon droplets and salt vapor.

    摘要翻译: 一种通过电弧加热器将硅中间体转化为高纯度硅的方法,其特征在于将气态硅中间体如卤化硅与金属还原剂如钠反应,以形成包括小固体硅颗粒的预反应产物 并且金属还原剂的盐滴在金属还原剂的沸点以下的温度下随后在电弧加热器室中将反应产物加热到高于沸点的温度,以将反应产物转化成硅滴,从而形成较大的 硅滴,然后分离硅滴和盐蒸气的混合物。

    Filter unit for use at high temperatures
    7.
    发明授权
    Filter unit for use at high temperatures 失效
    高温过滤器

    公开(公告)号:US4735638A

    公开(公告)日:1988-04-05

    申请号:US932115

    申请日:1986-11-18

    摘要: A filtering unit for filtering particulates from high temperature gases uses a spiral ceramic spring to bias a ceramic, tubular filter element into sealing contact with a flange about an aperture of a metallic tube sheet. The ceramic spiral spring may contact the upper edge of the filter element and be restrained by a stop member spaced from one end of the tube sheet, or the spring may contact the bottom of the filter element and be restrained by a support member spaced from the opposite end of the tube sheet. The stop member and support member are adjustably secured to the tube sheet. A filtering system uses the ceramic spiral spring to bias a plurality of ceramic, tubular filter elements in a respective plurality of apertures in a tube sheet which divides a vessel into upper and lower enclosed sections.

    摘要翻译: 用于从高温气体中过滤颗粒的过滤单元使用螺旋陶瓷弹簧来将陶瓷管状过滤器元件偏置成与围绕金属管板的孔的凸缘密封接触。 陶瓷螺旋弹簧可以接触过滤器元件的上边缘并且被与管板的一端间隔开的止动构件约束,或者弹簧可以接触过滤器元件的底部并且被与所述过滤器元件间隔开的支撑构件约束 管板的相对端。 止动构件和支撑构件可调节地固定到管板。 过滤系统使用陶瓷螺旋弹簧来将多个陶瓷管状过滤器元件偏置在管板中的相应多个孔中,该管板将容器分成上封闭部分和下封闭部分。

    Filtering system
    8.
    发明授权
    Filtering system 失效
    过滤系统

    公开(公告)号:US4539025A

    公开(公告)日:1985-09-03

    申请号:US654697

    申请日:1984-09-26

    IPC分类号: B01D46/00 B01D46/04 B01D46/06

    摘要: A filter system wherein a cylindrical shell having open ends and a gas-impervious wall with means for supporting a filter tube coaxially within the shell to form an annular chamber therebetween has means for securing the filter tube to the other open end, such that gases from the enclosure must pass through the filter tube into the annular chamber and then out of the cylindrical shell. A jet pulse means is provided to provide a jet pulse of fluid to the annular chamber to flex the filter tube inwardly to dislodge solids collected on the interior surface of the filter tube.

    摘要翻译: 一种过滤器系统,其中具有开口端的圆柱形壳体和不透气壁,其具有用于同时地在壳体内支撑过滤管以在其间形成环形室的装置,其间具有用于将过滤管固定到另一开口端的装置, 外壳必须通过过滤管进入环形室,然后通过圆柱形外壳。 提供喷射脉冲装置以向环形室提供流体的喷射脉冲,以向内弯曲过滤管,以移除收集在过滤管内表面上的固体。

    Method for casting and handling ultra-thin reverse osmosis membranes
    9.
    发明授权
    Method for casting and handling ultra-thin reverse osmosis membranes 失效
    铸造和处理超薄反渗透膜的方法

    公开(公告)号:US3969452A

    公开(公告)日:1976-07-13

    申请号:US495758

    申请日:1974-08-08

    摘要: A method of casting ultra-thin semipermeable membranes comprises the steps of: (A) applying a coating of a film forming water soluble solution, containing a leachable pore producing agent and a polymer which is not substantially degraded by organic polar solvents, onto a smooth casting surface, (B) drying the coating to form a support film about 0.5-10 mils thick, (C) applying a coating of an organic polymeric membrane coating solution onto the support film, and drying the coating to form a semipermeable reverse osmosis membrane film about 0.01-1.0 mil thick and (D) applying a leaching liquid to the films, to cause pore formation in the support film and to form a composite consisting of a 0.01-1.0 mil thick semipermeable membrane, supported by a 0.5-10 mils thick water soluble film support of between about 5-50% porosity.

    摘要翻译: 一种铸造超薄半透膜的方法包括以下步骤:(A)将含有可浸出的孔产生剂的膜形成水溶性溶液和基本上不被有机极性溶剂降解的聚合物涂布到光滑的 (B)干燥涂层以形成大约0.5-10密尔厚的支撑膜,(C)将有机聚合物膜涂覆溶液的涂层施加到支撑膜上,并干燥该涂层以形成半透反渗透膜 薄膜约0.01-1.0密耳厚,(D)将浸出液施加到薄膜上,在载体薄膜中形成孔,并形成由0.01-1.0密耳厚的半透膜组成的复合材料,该薄膜由0.5-10密耳 稠水溶性薄膜载体的孔隙率约为5-50%。

    Hot gas cross flow filtering module
    10.
    发明授权
    Hot gas cross flow filtering module 失效
    热气交叉流过滤模块

    公开(公告)号:US4737176A

    公开(公告)日:1988-04-12

    申请号:US930218

    申请日:1986-11-12

    CPC分类号: B01D46/12 B01D2273/20

    摘要: A filter module for use in filtering particulates from a high temperature gas has a central gas duct and at least one horizontally extending support mount affixed to the duct. The support mount supports a filter element thereon and has a chamber therein, which communicates with an inner space of the duct through an opening in the wall of the duct, and which communicates with the clean gas face of the filter element. The filter element is secured to the support mount over an opening in the top wall of the support mount, with releasable securement provided to enable replacement of the filter element when desired. Ceramic springs may be used in connection with the filter module either to secure a filter element to a support mount or to prevent delamination of the filter element during blowback.

    摘要翻译: 用于从高温气体中过滤颗粒的过滤器模块具有中心气体管道和固定到管道上的至少一个水平延伸的支撑安装件。 支撑座在其上支撑过滤元件并且在其中具有腔室,其通过管道的壁中的开口与管道的内部空间连通,并且与过滤元件的清洁气体面连通。 过滤元件在支撑安装件的顶壁上的开口处固定到支撑座上,其中可释放的固定件设置成在需要时能够更换过滤元件。 陶瓷弹簧可以与过滤器模块结合使用,以将过滤元件固定到支撑架上,或者防止在回吹期间过滤元件的分层。