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公开(公告)号：US09975806B2
公开(公告)日：2018-05-22
申请号：US14782437
申请日：2014-04-04
Applicant: KHD Humboldt Wedag GmbH
Inventor： Heiko Schuermann , Marc Feiss
CPC classification number: C04B7/4446 , C04B7/434 , C04B7/44 , C04B7/47 , F27B7/08 , F27B2007/025 , Y02P40/126 , C04B7/4423
Abstract: A plant for producing cement clinker, comprising as viewed in the direction of materials flow, a heat exchanger to preheat raw meal, a downstream calciner to calcine the raw meal, a rotary kiln to sinter the calcined raw meal, and a clinker cooler to cool the sintered cement clinker. A combustion device which carbonizes, pyrolysis or burns difficult fuels, is embodied as a pot reactor or gooseneck reactor in an inverted U-shape, and is positioned upstream of the calciner on the flow path of the exhaust gases from the rotary kiln to the calciner, and has a gas outlet that opens out above a tertiary-air line of the clinker cooler into the calciner. As a result, it becomes possible to burn fuel which is lumpy and/or has poor ignitability, and the gases from incomplete combustion in the reactor are available in the calciner in gaseous form for further combustion.
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公开(公告)号：US10479727B2
公开(公告)日：2019-11-19
申请号：US14782400
申请日：2014-04-04
Applicant: KHD Humboldt Wedag GmbH
Inventor： Norbert Streit , Marc Feiss
Abstract: A method for operating a plant for producing cement clinker from raw meal having, as viewed in the materials flow direction, at least one calciner for deacidifying the raw meal, and at least one rotary kiln for sintering the deacidified raw meal to form cement clinker. The deacidified raw meal, after passing through the calciner, flows via a cyclone preheating stage into the rotary kiln. Exhaust gases are guided from the rotary kiln into a reactor, arranged between the rotary kiln and the calciner, with fuel being fed into the reactor superstoichiometrically in relation to the dwell time of the exhaust gases in the reactor, so that carbon dioxide in the exhaust gases is reduced to form carbon monoxide. The carbon monoxide is used as a reducing agent for nitrogen oxides, which are chemically reduced in the reactor independently of the short dwell time in the calciner.
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3.发明申请Plant for producing cement clinker with gasification reactor for difficult fuels 有权用于生产难燃燃料气化反应釜的水泥熟料厂公开(公告)号：US20160046525A1
公开(公告)日：2016-02-18
申请号：US14782437
申请日：2014-04-04
Applicant: KHD Humboldt Wedag GmbH
Inventor： Heiko Schuermann , Marc Feiss
CPC classification number: C04B7/4446 , C04B7/434 , C04B7/44 , C04B7/47 , F27B7/08 , F27B2007/025 , Y02P40/126 , C04B7/4423
Abstract: A plant for producing cement clinker, comprising as viewed in the direction of materials flow, a heat exchanger to preheat raw meal, a downstream calciner to calcine the raw meal, a rotary kiln to sinter the calcined raw meal, and a clinker cooler to cool the sintered cement clinker. A combustion device which carbonizes, pyrolysis or burns difficult fuels, is embodied as a pot reactor or gooseneck reactor in an inverted U-shape, and is positioned upstream of the calciner on the flow path of the exhaust gases from the rotary kiln to the calciner, and has a gas outlet that opens out above a tertiary-air line of the clinker cooler into the calciner. As a result, it becomes possible to burn fuel which is lumpy and/or has poor ignitability, and the gases from incomplete combustion in the reactor are available in the calciner in gaseous form for further combustion.
Abstract translation: 一种用于生产水泥熟料的装置，包括从材料流动的方向观察，用于预热生料的热交换器，用于煅烧生料的下游煅烧器，用于烧结煅烧生料的回转窑和熟料冷却器冷却 烧结水泥熟料。 碳化，热解或燃烧困难的燃料的燃烧装置被实施为倒U形的罐式反应器或鹅颈式反应器，并且位于煅烧炉的上游，在来自回转窑的废气流向煅烧炉 并且具有在熟料冷却器的三次空气管线之上开放到煅烧炉中的气体出口。 结果，可以燃烧块状和/或具有差的点火性的燃料，并且在反应器中的不完全燃烧的气体可以以气态形式用于进一步燃烧。
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公开(公告)号：US20160039714A1
公开(公告)日：2016-02-11
申请号：US14782400
申请日：2014-04-04
Applicant: KHD Humboldt Wedag GmbH
Inventor： Norbert Streit , Marc Feiss
CPC classification number: C04B7/365 , C04B7/364 , C04B7/432 , C04B7/4446
Abstract: A method for operating a plant for producing cement clinker from raw meal having, as viewed in the materials flow direction, at least one calciner for deacidifying the raw meal, and at least one rotary kiln for sintering the deacidified raw meal to form cement clinker. The deacidified raw meal, after passing through the calciner, flows via a cyclone preheating stage into the rotary kiln. Exhaust gases are guided from the rotary kiln into a reactor, arranged between the rotary kiln and the calciner, with fuel being fed into the reactor superstoichiometrically in relation to the dwell time of the exhaust gases in the reactor, so that carbon dioxide in the exhaust gases is reduced to form carbon monoxide. The carbon monoxide is used as a reducing agent for nitrogen oxides, which are chemically reduced in the reactor independently of the short dwell time in the calciner.
Abstract translation: 操作用于生产水泥熟料的设备的方法，从材料流动方向看，至少一个用于使生料脱酸的煅烧炉和至少一个用于烧结脱酸生料的回转窑以形成水泥熟料。 经过煅烧炉的脱酸生料经旋风预热阶段流入回转窑。 废气从回转窑引导到设置在回转窑和煅烧炉之间的反应器中，燃料相对于反应器中废气的停留时间以超分子量计送入反应器中，使得排气中的二氧化碳 气体被还原形成一氧化碳。 一氧化碳用作氮氧化物的还原剂，其在反应器中被化学还原，与煅烧炉中的短停留时间无关。
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