公开(公告)号：US08133303B2

公开(公告)日：2012-03-13

申请号：US12167150

申请日：2008-07-02

申请人： James J. Schwab ,  Ronald L. Hawks

发明人： James J. Schwab ,  Ronald L. Hawks

IPC分类号： B01D53/02

CPC分类号： B01D53/10 ,  B01D53/64 ,  B01D2253/102 ,  B01D2257/404 ,  B01D2257/602

摘要： A method and apparatus for reducing discharges into the atmosphere of mercury pollutants associated with dry process, precalciner cement manufacturing is shown. Raw feed meal used in cement production is heated in a special heating chamber to drive off volatile mercury pollutants, such as elemental mercury and mercury oxides. Preferably, the feed meal is heated to a temperature of at least 175° C. The gases that are driven off flow are then cooled to condense the mercury pollutants causing them to be adsorbed on carbon particles injected into the gas flow. The carbon particles containing the condensed mercury pollutants are then filtered out of gas flow, for example, using a fabric filter. The gas flow may be burned to destroy other volatile pollutants such as hydrocarbons and/or ammonia.

摘要翻译： 示出了用于减少与干法相关的汞污染物的排放进入预分解水泥制造的方法和装置。 用于水泥生产的原料饲料在特殊的加热室中加热以驱除挥发性汞污染物，例如元素汞和氧化汞。 优选将进料粉加热到至少175℃的温度。然后将驱出的气体冷却以冷凝汞污染物，使它们吸附在注入到气体流中的碳颗粒上。 然后将含有浓缩的汞污染物的碳颗粒从气流中过滤，例如使用织物过滤器。 气流可能被燃烧以破坏其他挥发性污染物如碳氢化合物和/或氨。

公开(公告)号：US07862332B2

公开(公告)日：2011-01-04

申请号：US11777165

申请日：2007-07-12

申请人： James J. Schwab ,  Ronald L. Hawks

发明人： James J. Schwab ,  Ronald L. Hawks

IPC分类号： F27B15/00

CPC分类号： F27D17/008 ,  C04B7/364 ,  C04B7/40 ,  C04B7/43 ,  F27B7/20

摘要： A method and apparatus for reducing air pollutants associated with dry process, precalciner cement manufacturing is shown. Raw feed meal used in cement production is heated in a special heating chamber to drive off volatile compounds, such as organic materials and salts of ammonia. Preferably, the feed meal is heated to a temperature of at least 350° F. The gases that are driven off flow to the precalciner where they are combusted and rendered harmless. Heat is provided by diverting at least a portion of the exhaust gases from the cement pyroprocessing kiln to the special heater. The raw feed meal is indirectly heated using a heat exchange wall between the feed meal and the kiln exhaust gas flow. In addition, a base-containing material such as lime or precalcined feed meal, may be added to the raw feed before treatment meal to promote the breakdown of inorganic ammonium compounds, thereby releasing gaseous ammonia which is also destroyed upon subsequent combustion. Hot precalcined meal may also be used to provide some of the heat required to heat the raw feed meal in the special heating chamber.

摘要翻译： 示出了用于减少与干法相关的空气污染物的方法和装置，预煅烧水泥制造。 用于水泥生产的原料饲料在特殊加热室中加热以驱除挥发性化合物，例如有机物质和氨盐。 优选地，将进料粉加热到至少350°F的温度。被驱除的气体流到预分解器，在那里它们被燃烧并变得无害。 通过将至少一部分废气从水泥热处理窑转移到特殊加热器来提供热量。 使用饲料粉和窑尾废气流之间的热交换壁间接加热原料饲料。 此外，可以在处理前进料中加入含石灰或预煅烧饲料的含碱材料，以促进无机铵化合物的分解，从而释放随后燃烧时也被破坏的气态氨。 也可以使用热预煅烧的粉末来提供加热特殊加热室中的原料饲料所需的一些热量。

公开(公告)号：US07279039B2

公开(公告)日：2007-10-09

申请号：US11026481

申请日：2004-12-30

申请人： James J. Schwab ,  Ronald L. Hawks

发明人： James J. Schwab ,  Ronald L. Hawks

IPC分类号： C04B2/10

CPC分类号： F27D17/008 ,  C04B7/364 ,  C04B7/40 ,  C04B7/43 ,  F27B7/20

摘要： A method and apparatus for reducing air pollutants associated with dry process, precalciner cement manufacturing is shown. Raw feed meal used in cement production is heated in a special heating chamber to drive off volatile compounds, such as organic materials and salts of ammonia. Preferably, the feed meal is heated to a temperature of at least 350° F. The gases that are driven off flow to the precalciner where they are combusted and rendered harmless. Heat is provided by diverting at least a portion of the exhaust gases from the cement pyroprocessing kiln to the special heater. The raw feed meal is indirectly heated using a heat exchange wall between the feed meal and the kiln exhaust gas flow. In addition, abase-containing material such as lime or precalcined feed meal, may be added to the raw feed before treatment meal to promote the breakdown of inorganic ammonium compounds, thereby releasing gaseous ammonia which is also destroyed upon subsequent combustion. Hot precalcined meal may also be used to provide some of the heat required to heat the raw feed meal in the special heating chamber.

摘要翻译： 示出了用于减少与干法相关的空气污染物的方法和装置，预煅烧水泥制造。 用于水泥生产的原料饲料在特殊加热室中加热以驱除挥发性化合物，例如有机物质和氨盐。 优选地，将进料粉加热到至少350°F的温度。被驱除的气体流到预分解器，在那里它们被燃烧并变得无害。 通过将至少一部分废气从水泥热处理窑转移到特殊加热器来提供热量。 使用饲料粉和窑尾废气流之间的热交换壁间接加热原料饲料。 此外，可以在处理粉之前向原料进料中含有含砷材料，例如石灰或预煅烧的进料粉，以促进无机铵化合物的分解，从而释放随后燃烧也被破坏的气态氨。 也可以使用热预煅烧的粉末来提供加热特殊加热室中的原料饲料所需的一些热量。

公开(公告)号：US20100000406A1

公开(公告)日：2010-01-07

申请号：US12167150

申请日：2008-07-02

申请人： James J. Schwab ,  Ronald L. Hawks

发明人： James J. Schwab ,  Ronald L. Hawks

IPC分类号： B01D53/10

CPC分类号： B01D53/10 ,  B01D53/64 ,  B01D2253/102 ,  B01D2257/404 ,  B01D2257/602

摘要： A method and apparatus for reducing discharges into the atmosphere of mercury pollutants associated with dry process, precalciner cement manufacturing is shown. Raw feed meal used in cement production is heated in a special heating chamber to drive off volatile mercury pollutants, such as elemental mercury and mercury oxides. Preferably, the feed meal is heated to a temperature of at least 175° C. The gases that are driven off flow are then cooled to condense the mercury pollutants causing them to be adsorbed on carbon particles injected into the gas flow. The carbon particles containing the condensed mercury pollutants are then filtered out of gas flow, for example, using a fabric filter. The gas flow may be burned to destroy other volatile pollutants such as hydrocarbons and/or ammonia.

摘要翻译： 示出了用于减少与干法相关的汞污染物的排放进入预分解水泥制造的方法和装置。 用于水泥生产的原料饲料在特殊的加热室中加热以驱除挥发性汞污染物，例如元素汞和氧化汞。 优选将进料粉加热到至少175℃的温度。然后将驱出的气体冷却以冷凝汞污染物，使它们吸附在注入到气体流中的碳颗粒上。 然后将含有浓缩的汞污染物的碳颗粒从气流中过滤，例如使用织物过滤器。 气流可能被燃烧以破坏其他挥发性污染物如碳氢化合物和/或氨。

公开(公告)号：US06749820B2

公开(公告)日：2004-06-15

申请号：US09797203

申请日：2001-02-28

申请人： Ronald L. Hawks ,  James J. Schwab

发明人： Ronald L. Hawks ,  James J. Schwab

IPC分类号： C01B1722

CPC分类号： B01D53/504

摘要： The liquid cooling spray in a gas conditioning chamber is modified by the addition of an alkali to scrub sulfuir dioxide and other acid forming gases and a separation unit to remove particles that may contain either unreacted alkali or salts of the acid forming gases. A slurry of fine particles of hydrated lime is injected into the liquid coolant under conditions that result in kernels of controllable size that contain the alkali or salts from reactions with the acid forming gases. The modified cooling liquid provides for a high sulfur dioxide collection efficiency at a low molar ratio of alkali to sulfur, while the specified kernel size range allows fbr efficient removal of the kernels from the gas.

摘要翻译： 在气体调节室中的液体冷却喷雾通过加入碱来洗涤二氧化硫和其它形成酸的气体以及分离单元来改变，以除去可能含有未反应的碱或形成酸的气体的盐的颗粒。 在产生可控尺寸的颗粒的条件下，将熟石灰的细颗粒的浆料注入液体冷却剂中，其含有与酸形成气体反应的碱或盐。 改性的冷却液在碱与硫的低摩尔比下提供高二氧化硫收集效率，而规定的粒径范围允许有效地从气体中除去颗粒。

公开(公告)号：US6060030A

公开(公告)日：2000-05-09

申请号：US63703

申请日：1998-04-20

申请人： James J. Schwab ,  Ronald L. Hawks

发明人： James J. Schwab ,  Ronald L. Hawks

IPC分类号： B01D53/34 ,  B01D53/50 ,  B01D53/58 ,  B01D53/40

CPC分类号： B01D53/58 ,  B01D53/346 ,  B01D53/501 ,  B01D2258/0233 ,  Y10S423/05

摘要： A method is provided for abating acidic contaminants, such as sulfur dioxide and hydrogen chloride, in exhaust gases while minimizing the formation of visible plumes of ammonium salts proximate to the outlet of the exhaust stack by injecting a spray of an alkaline liquid, such as sodium hydroxide or potassium hydroxide, into the contaminated exhaust gases wherein the pH of the alkaline liquid is high enough, i.e. greater than a pH of about 11, so that the acidic contaminants preferentially react with the alkaline liquid rather than the ammonia in the gases, thereby minimizing formation of visible plumes of ammonium salts.

摘要翻译： 提供了一种用于在排气中减轻酸性污染物（例如二氧化硫和氯化氢）的方法，同时通过喷射碱性液体（例如钠）喷雾，使靠近废气堆的出口的铵盐的可见羽流的形成最小化 氢氧化物或氢氧化钾进入受污染的废气中，其中碱性液体的pH足够高，即大于约11的pH，使得酸性污染物优先与气体中的碱性液体而不是氨反应，从而 最小化可见的铵盐的形成。