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公开(公告)号：US20180148374A1
公开(公告)日：2018-05-31
申请号：US15577225
申请日：2016-05-20
CPC分类号： C04B7/436 , B01D47/02 , C02F1/004 , C02F1/463 , C02F1/5236 , C02F1/66 , C02F9/00 , C02F2001/007 , C02F2001/5218 , C02F2103/34 , C04B7/60 , Y02P40/121 , C04B7/365
摘要： A method for treating and utilizing bypass dusts from a cement production process involves a) contacting the bypass dust with an aqueous phase and mixing the same to obtain a suspension, wherein water-soluble components of the bypass dust are dissolved in the aqueous phase; b) performing a solid/liquid separation, in particular a vacuum filtration or a filter press filtration, to separate the solids contained in the suspension, wherein a brine remains; c) precipitating a partial amount of the heavy metals present in the brine, and optionally Ca, and separating the precipitate from the brine; and d) subjecting the brine to an electrocoagulation, wherein a flocculate containing the heavy metals remaining in the brine is separated.
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公开(公告)号：US09855527B2
公开(公告)日：2018-01-02
申请号：US15034542
申请日：2014-11-06
IPC分类号： B01D53/10 , B01D53/90 , B01D53/06 , B01D53/86 , B01D53/56 , B01D53/62 , B01D53/72 , B01D46/00 , B01D46/48 , C04B7/43 , C04B7/36
CPC分类号： B01D53/8656 , B01D53/06 , B01D53/10 , B01D53/8653 , B01D53/90 , B01D2251/602 , B01D2257/302 , B01D2257/404 , B01D2257/502 , B01D2257/702 , B01D2258/0233 , C04B7/364 , C04B7/365 , C04B7/43 , C04B7/436
摘要： A method for cleaning bypass gases of the cement or mineral industry includes cooling down a removed bypass gas from a cement or mineral processing plant to a temperature of between 500° C. and 150° C., and coarsely dedusting the bypass gas, the dust burden being reduced by 30 to 95%. After the dedusting step, the gaseous constituents contained in the partly dedusted bypass gas are reduced in a reducing step. The partly dedusted bypass gas is further finely dedusted. The gaseous constituents reducing step includes at least a catalytic reduction of one or more of nitrogen oxides, hydrocarbons, and carbon monoxide.
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公开(公告)号：US20130291725A1
公开(公告)日：2013-11-07
申请号：US13808031
申请日：2011-07-01
IPC分类号： B01D53/14
CPC分类号： B01D53/64 , B01D53/14 , B01D53/78 , B01D2251/40 , B01D2257/602 , B01D2258/0233 , C04B7/364 , C04B7/436 , F27D17/008
摘要： A method for treating cement kiln exhaust is provided. The method includes the steps of: providing a cement kiln exhaust gas stream from a kiln; providing a water soluble alkaline-earth metal polysulfide; combining the cement kiln exhaust stream with the water soluble alkaline-earth metal polysulfide to create a combined stream; and removing at least a portion of one heavy metal from the combined stream.
摘要翻译： 提供了一种处理水泥窑尾气的方法。 该方法包括以下步骤：从窑炉提供水泥窑废气流; 提供水溶性碱土金属多硫化物; 将水泥窑排气流与水溶性碱土金属多硫化物混合以产生组合流; 以及从组合流中除去至少一部分重金属。
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4.发明申请公开(公告)号：US20130202514A1
公开(公告)日：2013-08-08
申请号：US13811197
申请日：2011-08-04
申请人： Shinichiro Saito , Junichi Terasaki
发明人： Shinichiro Saito , Junichi Terasaki
IPC分类号： B01D53/50
CPC分类号： B01D53/501 , B01D2258/0233 , C04B7/436 , C04B7/60 , C04B18/162 , F27D17/008 , F27D2017/009 , Y02W30/95
摘要： In accordance with the present invention, there is provide and device and method to facilitate the treatment of chlorine bypass dust while preventing increases in chemical cost and concentrations of heavy metals in clinker, and ensuring stability in quality of cement, and to treat chlorine bypass exhaust gas while avoiding coating troubles in a cement kiln etc., and preventing heat losses in a preheater etc., without degradation of clinker production amount.
摘要翻译： 根据本发明，提供了一种便于处理氯旁路粉尘的装置和方法，同时防止熟料中化学成本和重金属浓度的增加，并确保水泥质量的稳定性，以及处理氯旁路排气 气体，同时避免水泥窑等中的涂层故障，并且防止预热器等中的热损失，而不降低熟料生产量。
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公开(公告)号：US20130192497A1
公开(公告)日：2013-08-01
申请号：US13806297
申请日：2011-06-08
CPC分类号： C04B7/60 , B01D53/508 , B01D53/62 , B01D53/86 , B09B3/0025 , C04B7/436 , F27D17/00 , Y02P10/283
摘要： In accordance with the present invention, there is provided a treat chlorine bypass dust while preventing increases in chemical cost and concentrations of heavy metals in clinker, and ensuring stability in quality of cement. In a chlorine bypass facility 1 extracting a part G of combustion gas, while cooling it, from a kiln exhaust gas passage, which runs from an inlet end of a cement kiln to a bottom cyclone, and recovering a high chlorine concentration chlorine bypass dust D5 from the extracted gas G1, a slurry S containing chlorine bypass dust and SO2 gas or/and CO2 gas are contacted with each other to obtain solid content. The slurry containing chlorine bypass dust and an exhaust gas from the chlorine bypass facility or/and the exhaust gas from the cement kiln can be contacted with each other, and the solid content can be fed to a cement finishing process, which allows cement with low CaO and Ca(OH)2 contents and with stable property such as setting time to be produced.
摘要翻译： 根据本发明，提供一种治疗氯旁路粉尘，同时防止熟料中化学成本和重金属浓度的增加，并确保水泥质量的稳定性。 在氯旁路设备1中，在从水泥窑的入口端到底部旋风分离器的窑尾废气通道中冷却时，提取燃烧气体G，并且回收高氯浓度氯旁路粉尘D5 从提取气体G1中将含有氯旁路粉尘和SO 2气体或/和CO 2气体的浆料S彼此接触以获得固体含量。 含有氯旁路粉尘和来自氯旁路设备的废气和/或来自水泥窑的废气的浆料可以彼此接触，并且可以将固体成分进料到水泥整理过程中，这使得水泥具有低的 CaO和Ca（OH）2含量，并具有稳定的性能，例如凝固时间。
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公开(公告)号：US20120272872A1
公开(公告)日：2012-11-01
申请号：US13512125
申请日：2011-08-18
CPC分类号： C04B7/436 , B01D53/64 , B01D2251/402 , B01D2251/404 , B01D2257/602 , B01D2258/0233 , B09B3/0025 , B09B3/0083 , C22B43/00 , Y10S588/90
摘要： A method for treating cement kiln dust is provided. The method includes the steps of receiving cement kiln dust (CKD) from a kiln; heating the collected CKD; forming a gas stream of vaporized metal and CKD by sufficient heating to separate at least one heavy metal from the collected CKD stream to create a cleaned CKD stream and a metal stream; providing a water soluble alkaline-earth metal polysulfide; combining the heavy metal stream with the water soluble alkaline-earth metal sulfide to create a combined stream; and removing at least a portion of one heavy metal from the combined stream.
摘要翻译： 提供了一种处理水泥窑灰的方法。 该方法包括从窑炉接收水泥窑灰（CKD）的步骤; 加热收集的CKD; 通过充分加热形成汽化金属和CKD的气流，以从收集的CKD流中分离出至少一种重金属以产生清洁的CKD流和金属流; 提供水溶性碱土金属多硫化物; 将重金属流与水溶性碱土金属硫化物结合以产生组合流; 以及从组合流中除去至少一部分重金属。
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7.发明申请公开(公告)号：US20110318247A1
公开(公告)日：2011-12-29
申请号：US12998992
申请日：2009-12-17
申请人： Roberto Fedi , Antonio Clausi , Giovanni Cinti
发明人： Roberto Fedi , Antonio Clausi , Giovanni Cinti
CPC分类号： F27D17/004 , C04B2/10 , C04B7/364 , C04B7/436 , F23G5/02 , F23J1/00 , F23J15/02 , F23J2215/00 , F23J2217/10 , F23J2217/40 , F23J2217/50 , F23J2219/10 , F23J2219/60 , F27B7/2033 , F27D17/008 , Y02P40/121
摘要： The present invention concerns a process for purifying a flow of combustion fumes from a clinker production plant comprising the following operating steps: a) removing dust at a temperature comprised between 250 and 400° C. from a flow of combustion fumes exiting from a suspension preheater with formation of a flow of combustion fumes free of dust; b) carrying out on said flow of combustion fumes free of dust a selective catalytic NOx reduction treatment with a reducing agent, with formation of a purified flow of combustion fumes. The present invention also concerns an apparatus for carrying out the aforementioned process.
摘要翻译： 本发明涉及一种用于净化来自熟料生产设备的燃烧烟雾流的方法，包括以下操作步骤：a）在从悬浮预热器出来的燃烧烟雾流中在250-400℃之间的温度下除去灰尘 形成无灰尘的燃烧烟雾流; b）在所述燃烧烟雾的流动下，用还原剂进行选择性催化NOx还原处理，形成净化的燃烧气流。 本发明还涉及一种用于执行上述过程的装置。
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8.发明授权Method and apparatus for disposing of waste dust generated in the manufacture of cement clinker 失效处理在水泥熟料生产过程中产生的废粉的方法和设备公开(公告)号：US06322355B1
公开(公告)日：2001-11-27
申请号：US09584895
申请日：2000-06-01
申请人： Rom D. Young
发明人： Rom D. Young
IPC分类号： F27B1512
CPC分类号： C04B7/436 , F27B7/20 , F27B7/2025 , F27D17/008 , C04B7/42 , C04B7/60
摘要： A method of disposing of undesirable chemical compounds in waste dust generated in a first kiln in the manufacture of cement clinker by using the dust and slag as the feedstock material to a second kiln, heating the feedstock material in an oxidizing atmosphere, and raising the heat sufficient to diffuse the waste dust and the slag to form a hydraulic product such as cement clinker and lime but insufficient to volatilize previously precipitated chemical compounds in the feedstock material.
摘要翻译： 通过使用灰尘和炉渣作为第二窑的原料来处理在第一窑中产生的废粉尘中的不期望的化学化合物在制造水泥熟料中的方法，在氧化气氛中加热原料并提高热量 足以扩散废粉和炉渣以形成诸如水泥熟料和石灰的液压产品，但不足以挥发原料中先前沉淀的化合物。
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9.发明授权Method and apparatus for disposing of waste dust generated in the manufacture of cement clinker 失效处理在水泥熟料生产过程中产生的废粉的方法和设备
公开(公告)号：US6109913A
公开(公告)日：2000-08-29
申请号：US420734
申请日：1999-10-20
申请人： Rom D. Young
发明人： Rom D. Young
CPC分类号： F27B7/2025 , C04B7/436 , F27B7/20
摘要： A method of disposing of undesirable chemical compounds in waste dust generated in a first kiln in the manufacture of cement clinker by using the dust and slag as the feedstock material to a second kiln, heating the feedstock material in an oxidizing atmosphere, and raising the heat sufficient to diffuse the waste dust and the slag to form a hydraulic product such as cement clinker and lime but insufficient to volatilize previously precipitated chemical compounds in the feedstock material.
摘要翻译： 通过使用灰尘和炉渣作为第二窑的原料来处理在第一窑中产生的废粉尘中的不期望的化学化合物在制造水泥熟料中的方法，在氧化气氛中加热原料并提高热量 足以扩散废粉和炉渣以形成诸如水泥熟料和石灰的液压产品，但不足以挥发原料中先前沉淀的化合物。
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公开(公告)号：US09795912B2
公开(公告)日：2017-10-24
申请号：US15410007
申请日：2017-01-19
申请人： CalPortland Company
发明人： Hartmut Riess , Dusting Pham , George Hartman , Zuhair Hasan
CPC分类号： B01D47/00 , B01D53/508 , B01D53/685 , B01D53/80 , B01D2251/404 , B01D2251/602 , B01D2257/2045 , B01D2258/0233 , C04B7/364 , C04B7/365 , C04B7/436 , C04B7/44 , F27B7/2041 , F27D17/008 , Y02P40/121
摘要： Methods and apparatus for reducing the content of controlled acidic pollutants in clinker kiln emissions are disclosed. The methods and apparatus include introducing bypass dust produced during production of clinker into one or more locations between the preheater exhaust and the inlet to a dust filter including into a gas conditioning tower. Total bypass dust separated from the kiln exhaust gas may be used. The bypass dust can be separated into a fine and coarse portions. Fine or total bypass dust can be mixed with water to form a bypass dust slurry that can be introduced into the gas conditioning tower. Bypass dust can be used to reduce the content of acidic pollutants such as hydrogen chloride HCl and sulfur oxides SOx from clinker kiln emissions.
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