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公开(公告)号：US20230067216A1
公开(公告)日：2023-03-02
申请号：US17637558
申请日：2020-09-02
摘要： In a method of treating a gas stream (32) containing combustible and/or reactive particles (34) at least a part of the particles (34) contained in the gas stream (32) is separated from the gas stream (32) by means of a separation device (36). The particles (34) separated from the gas stream (32) by means of the separation device (36) are supplied to a collecting vessel (40). The supply of particles (34) to the collecting vessel (40) is interrupted. A flame retardant material (57) is supplied to the collecting vessel (40) so as to form a cover layer of flame retardant material (57) on the particles (34) contained in the collecting vessel (40).
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公开(公告)号：US10730009B2
公开(公告)日：2020-08-04
申请号：US16489136
申请日：2018-02-22
IPC分类号： B01D47/12 , B01D53/58 , B01D53/75 , B01D53/78 , C07C273/16
摘要： A process for purifying exhaust air from a granulation plant for producing a urea-containing granulate includes contacting a gas stream containing a urea-containing dust and ammonia with a sulfuric acid solution or a nitric acid solution in a scrubbing process. The scrubbing process involves scrubbing the gas stream with a first weakly acidic scrubbing solution in a first scrubbing stage and scrubbing the gas stream exiting the first scrubbing stage with a second scrubbing solution having a lower pH than the first weakly acidic scrubbing solution in a second scrubbing stage. The acidic scrubbing solution generated in the second scrubbing stage may be recycled into the first scrubbing stage via a conduit and used therein as the first weakly acidic scrubbing solution. A pre-scrubbing stage for scrubbing dust out of the gas stream may additionally be arranged upstream of the first scrubbing stage.
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公开(公告)号：US10207215B2
公开(公告)日：2019-02-19
申请号：US14354018
申请日：2012-10-16
发明人： Dawei Zhang
IPC分类号： B01D47/06 , B01D47/12 , B01D5/00 , B01J20/20 , B01D53/00 , B01J20/34 , B01D53/14 , B01D46/00 , B01D47/05 , C10B27/06 , C10L3/00 , C10L3/08 , C10L5/28 , C10L9/08 , B01D45/08
摘要： There is provided an active coke regeneration mixed vapor treatment method. The method comprises the following process steps of: A) performing a first water condensation on a mixed vapor produced during an active coke regeneration process by spray water in a first condensation zone; B) performing a second water condensation on the mixed vapor that is after the first water condensation by spray water in a second condensation zone, to further condensate and purify the mixed vapor; C) eliminating moisture in a gas through mist elimination from the gas fraction in the mixed vapor that is after the second water condensation, and discharging the remaining gas from the upper of the second condensation zone; and, D) discharging active coke micro powder in the mixed vapor that is after the second water condensation, with condensation water. In the present invention, an apparatus for implementing the abovementioned method is also provided.
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公开(公告)号：US08986430B2
公开(公告)日：2015-03-24
申请号：US13388207
申请日：2009-08-03
申请人： Henry Kister , Richard B. Nielsen
发明人： Henry Kister , Richard B. Nielsen
CPC分类号： C01B17/0456 , B01D5/003
摘要： Heat is removed from a process liquid of a direct contact condenser in waste gas cooling using two separate and distinct cooling devices that provide cooled process liquid to at least two separate sections in the direct contact condenser. Most preferably, the sections are liquidly isolated and provide the heated process liquids to the respective cooling devices. However, in other embodiments, the sections are liquidly coupled to each other so to allow transfer of the process liquid from one section to another section. One of the two cooling devices uses a lower-cost or higher-availability coolant that the other. It is generally preferred that one of the cooling devices is an air cooler and that another one of the cooling devices employs a cooling medium other than air.
摘要翻译： 使用两个独立和不同的冷却装置，在废气冷却中从直接接触冷凝器的处理液体中除去热量，该冷却装置将直接接触冷凝器中的至少两个分开的部分提供冷却的工艺液体。 最优选地，这些部分是液体隔离的，并且将加热的工艺液体提供给相应的冷却装置。 然而，在其他实施例中，这些部分彼此液体耦合，以便允许处理液体从一个部分转移到另一个部分。 两个冷却装置中的一个使用低成本或更高可用性的冷却剂。 通常优选地，一个冷却装置是空气冷却器，另一个冷却装置采用除空气之外的冷却介质。
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公开(公告)号：US20100101249A1
公开(公告)日：2010-04-29
申请号：US12444195
申请日：2007-09-28
申请人： Andreas Seliger
发明人： Andreas Seliger
CPC分类号： B01D53/18 , B01D53/1462
摘要： The invention relates to a washing column (T) for implementing a physical gas washing in which gas (1) is sent from the bottom to the top and washing agent (2) is sent from the top to the bottom through the washing column, whereby at least two washing sections (WS1, WS2) are arranged on top of one another in the washing column (T), the top section (WS2) of which is bounded at the bottom by a riser base (K), from which a portion of the washing agent that is charged in the upper washing section can be introduced as washing agent into the lower washing section (WS1), and another portion can be removed from the washing column (T) via a lateral drain (4). The upper washing section (WS2) is connected to the lower washing section (WS1) by an overflow (U), via which charged washing agent from the riser base (K) of the upper washing section (WS2) can be introduced into the lower washing section (WS1).
摘要翻译： 本发明涉及一种用于实现从底部向顶部输送气体（1）的物理气体洗涤的洗涤塔（T），并且洗涤剂（2）通过洗涤塔从顶部输送到底部，由此 在洗涤塔（T）中，至少两个洗涤部分（WS1，WS2）彼此顶部布置，顶部（WS2）在底部由提升管基座（K）限定， 可以将装在上部洗涤部中的洗涤剂作为洗涤剂引入下部洗涤部（WS1），另一部分可以经由侧面排出物（4）从洗涤塔（T）除去。 上清洗部（WS2）通过溢流（U）与下洗涤部（WS1）连接，来自上清洗部（WS2）的提升管基部（K）的带电清洗剂可以通过上溢液 洗涤部（WS1）。
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公开(公告)号：US6149715A
公开(公告)日：2000-11-21
申请号：US526936
申请日：2000-03-16
申请人： Veli Keinanen , Launo Lilja , Pekka Niemela , Janne Ollila
发明人： Veli Keinanen , Launo Lilja , Pekka Niemela , Janne Ollila
CPC分类号： B01D47/12 , B01D45/16 , B01D47/10 , B01D50/004 , F23J15/022 , Y10S261/09 , Y10S261/54
摘要： The invention relates to a method according to which the wet scrubbing of a gas flow is performed in at least three, advantageously six successive steps or phases, and the droplet separation of the scrubbed gases is carried out in a uniform cyclone-like droplet separator composed of several nested cylinders. The invention also relates to a method for momentarily bypassing, during a capacity rise, a scrubbing phase that causes pressure loss. As a result, there is obtained a clean and dropless gas that falls below the allowed dust content limits and can thus be either conducted to combustion or discharged in the open air. The invention also relates to an apparatus, a multiphase scrubber, for realizing the method. The invention is particularly suited to be used for scrubbing hot furnace gases from closed reduction furnaces, where said furnace gases contain easily inflammable components.
摘要翻译： 本发明涉及一种方法，根据该方法，在至少三个，有利地六个连续的步骤或相中进行气流的湿式洗涤，并且洗涤的气体的液滴分离在均匀的旋风分离的液滴分离器中进行，组合 的几个嵌套圆柱体。 本发明还涉及一种在容量上升期间暂时绕过引起压力损失的洗涤阶段的方法。 因此，获得了低于允许的粉尘含量极限的清洁无气的气体，因此可以在露天的空气中进行燃烧或排出。 本发明还涉及一种用于实现该方法的装置，多相洗涤器。 本发明特别适合用于从封闭还原炉中洗涤热炉气体，其中所述炉内气体容易含有易燃组分。
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公开(公告)号：US5928412A
公开(公告)日：1999-07-27
申请号：US765728
申请日：1996-12-30
CPC分类号： B01D53/58 , B01D1/2818 , B01D1/284 , B01D53/38 , B01D53/72
摘要： A method is disclosed by which vapour is cleaned of gaseous impurities during evaporation of polluted liquids. Vapour is conducted via a boiler, a compressor to a heat exchanger (12) in which condensation takes place. In order to clean the vapour, a scrubber (14) is arranged between the boiler (3) and the heat exchanger (12), in which the vapour is scrubbed in several steps (17, 18) at different pH values. Thus, the step (17) is an acid step, whereas the step (18) is an alkaline step. In this manner, the vapour for condensation may be conducted into the heat exchanger and be condensed in order to remove a clean condensate without pollution of acid or alkaline substances.
摘要翻译： PCT No.PCT / DK95 / 00310 Sec。 371日期1996年12月30日第 102（e）日期1996年12月30日PCT Filed 1995年7月19日PCT公布。 公开号WO96 / 03191 日期1996年2月8日公开了一种在污染液体蒸发期间通过蒸气清除气态杂质的方法。 蒸气通过锅炉，压缩机传导到发生冷凝的热交换器（12）。 为了清洁蒸气，在锅炉（3）和热交换器（12）之间布置有洗涤器（14），其中蒸汽以不同pH值的几个步骤（17,18）洗涤。 因此，步骤（17）是酸性步骤，而步骤（18）是碱性步骤。 以这种方式，用于冷凝的蒸汽可以进入热交换器并被冷凝，以便除去清洁的冷凝物而不污染酸或碱性物质。
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公开(公告)号：US5759233A
公开(公告)日：1998-06-02
申请号：US565022
申请日：1995-11-30
申请人： James J. Schwab
发明人： James J. Schwab
CPC分类号： B01D47/12 , B01D47/10 , Y10S261/54
摘要： An air pollution control system incorporating a venturi scrubber and a method of cleansing a particulate-laden, contaminated gas flow are disclosed. Spray nozzles are used to introduce optimized droplets of a scrubbing liquid into the venturi to maximize particle collection efficiency. The present invention discloses automatic control systems which adjust the venturi as the properties of the effluent gases change. For example, in one embodiment, the spray volume and/or droplet size is adjusted as the particle concentration changes. In another embodiment, the spray volume is increased as the volume of effluent gas decreases.
摘要翻译： 公开了一种包含文丘里洗涤器的空气污染控制系统和清洁含颗粒物的污染气体流的方法。 喷嘴用于将优化的洗涤液滴滴入文丘里管中以最大限度地提高颗粒收集效率。 本发明公开了随着废气的性质改变而调节文丘里管的自动控制系统。 例如，在一个实施例中，随着颗粒浓度的变化，调节喷雾体积和/或液滴尺寸。 在另一个实施方案中，随着废气体积的减少，喷雾体积增加。
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9.发明授权
公开(公告)号：US5676715A
公开(公告)日：1997-10-14
申请号：US600708
申请日：1996-02-13
摘要： An apparatus for improved removal of particulates and contaminants from a flue gas produced by the combustion of waste materials or fossil fuels in industrial processes having at least one horizontally oriented heat exchanger stage in which a wet scrubbing solution, such as an alkali reagent is sprayed in the same direction as the flue gas flow and a drain mechanism is located below the horizontally oriented heat exchanger. The horizontal orientation of the heat exchanger and the location of the drain mechanism increase the removal efficiency of very small particulates and contaminants. A collection tank is connected to the drain mechanism. A spray washing system is provided adjacent a mist eliminator and one or more additional heat exchanger stages for unplugging the heat exchanger and enhancing small particulate removal within the system.
摘要翻译： 一种用于在具有至少一个水平取向的热交换器阶段的工业过程中由废物或化石燃料的燃烧产生的烟道气中去除微粒和污染物的装置，其中湿式洗涤溶液如碱试剂被喷洒在 与烟气流相同的方向和排水机构位于水平取向的热交换器的下方。 热交换器的水平方向和排水机构的位置提高了非常小的颗粒和污染物的去除效率。 收集箱连接到排水机构。 在除雾器附近设置喷雾洗涤系统，以及一个或多个附加的热交换器级，用于拔除热交换器并增强系统内的小颗粒去除。
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10.发明授权Heating, ventilation and air conditioning unit with automatically controlled water spray air purification system 失效加热，通风和空调机组具有自动控制的喷水空气净化系统
公开(公告)号：US5389120A
公开(公告)日：1995-02-14
申请号：US192988
申请日：1994-02-08
申请人： Frederic D. Sewell , Barry D. Jones
发明人： Frederic D. Sewell , Barry D. Jones
CPC分类号： F24F3/044 , B01D47/06 , B01D47/12 , B01D50/008 , F24F3/1603 , F24F2003/1617
摘要： An automatically controlled water spray air purification system is incorporated in a heating, ventilating and air conditioning unit serving a conditioned interior building space. The purification system is operative to receive a portion of the return air that would normally be flowed through the unit, mix the received return air with a quantity of outside ventilation air, purify the return air/outside air mixture using water sprayed from a sump portion of the purification system, and flow the purified air into the unit for mixture therein with the balance of the return air being flowed therethrough to the conditioned space. Damper structures on the unit and its associated air purification system permit selective variance of the percentage of the unit discharge air that has traversed the purification system. The water spray portion of the purification system is served by a pump forcing water from a sump structure through a filter, with the spray water draining back into the sump after cleansing air traversing the purification system. Upon a sensed demand therefor, an additive injector adds suitable chemical treatment material to the sump water, and a water pollutant monitor structure operates to backwash the filter upon sensing an undesirable pump back pressure increase or a buildup of particulate and gaseous pollutants in the sump water. A dehumidification structure incorporated in the purification system is automatically controlled to remove moisture from purified air exiting the purification system.
摘要翻译： 一个自动控制的喷水空气净化系统被并入加热，通风和空调单元，为室内建筑空间提供服务。 净化系统可操作以接收通常通过该单元的一部分返回空气，将接收到的回流空气与一定量的外部通风空气混合，使用从贮槽部分喷射的水净化回流空气/外部空气混合物 的净化系统，并且将净化的空气流入单元以进行混合，其中回流空气的平衡通过其流过调节空间。 装置上的阻尼器结构及其相关的空气净化系统允许选择性地改变穿过净化系统的单元排出空气的百分比。 净化系统的喷水部分由泵迫使来自贮槽结构的水通过过滤器，在净化穿过净化系统的空气后，喷射水将排放回到贮槽中。 根据感测到的需求，添加剂注入器将适当的化学处理材料添加到集水器水中，并且水污染物监测器结构用于在感测到不利的泵背压增加或集水槽中的颗粒和气态污染物积聚时反洗过滤器 。 自动控制并入净化系统中的除湿结构，以从净化系统排出的净化空气中除去水分。
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