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公开(公告)号：US20230152037A1
公开(公告)日：2023-05-18
申请号：US17922946
申请日：2021-04-30
发明人： Anna Ivanova DINKOVA , Jost LEMKE , Karl LAMPE , Eike WILLMS
CPC分类号： F27B7/42 , F27B7/36 , F27D19/00 , C04B7/432 , C04B7/434 , C04B7/4476 , C04B7/47 , F27M2003/03 , F27D2019/0003
摘要： A cement production plant may include a preheater for preheating raw meal, a calciner for calcining the preheated raw meal, and a furnace with a furnace burner for firing the raw meal to form cement clinker. The furnace has a combustion gas inlet for admitting a combustion gas with an oxygen content of 30% to 75% into the furnace. The cement production plant may also include a cooler for cooling the cement clinker. The calciner and the furnace each have at least one respective fuel inlet for admitting at least one fuel into the calciner and the furnace. The calciner and the furnace each have at least one respective inert gas inlet for respectively admitting inert gas into the calciner and the furnace.
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公开(公告)号：US11878950B2
公开(公告)日：2024-01-23
申请号：US17051087
申请日：2019-04-26
发明人： Jost Lemke , Eike Willms
CPC分类号： C04B7/4476 , C04B7/432 , C04B7/4407 , C04B7/4415 , C04B7/475 , F27B7/3205 , F27B7/36 , F27B7/362 , F27B7/383
摘要： Processes and plants for producing cement clinker, in which an oxygen-containing gas having a proportion of 15% by volume or less of nitrogen and a proportion of 50% by volume or more of oxygen is conveyed from a first section of the cooler directly adjoining the top of the furnace into the rotary furnace and is optionally additionally conveyed to the calciner, and where the total gas streams fed in to the combustion processes consist to an extent of more than 50% by volume (preferably more than 85% by volume) of oxygen.
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公开(公告)号：US5572938A
公开(公告)日：1996-11-12
申请号：US387542
申请日：1995-02-13
申请人： Christopher B. Leger
发明人： Christopher B. Leger
CPC分类号： F27B7/362 , C04B7/4476 , F27B2007/365
摘要： Oxygen is lanced into the main combustion reaction of a cement kiln to increase heat transfer to the clinker bed and to increase clinker production. Oxygen is separately lanced along the floor, i.e. the lowest wall of the kiln, to delay mixing with the flame to provide deep staging. The deeply staged oxygen flow is adjusted frequently to control emissions and stabilize the burning zone while the primary oxygen flow is maintained constant.
摘要翻译： 氧气渗透到水泥窑的主要燃烧反应中，以增加对熟料床的热传递并增加熟料的产量。 氧气沿着地板，即窑的最低壁分开分开，以延迟与火焰的混合以提供深层分级。 经常调节深层次的氧气流，以控制排放并稳定燃烧区域，同时保持原始氧气流量恒定。
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公开(公告)号：US20180186651A1
公开(公告)日：2018-07-05
申请号：US15742154
申请日：2016-07-13
申请人： KERNEOS
CPC分类号： C01F7/164 , C04B7/32 , C04B7/4476
摘要： Disclosed is a method for manufacturing calcium aluminates in an industrial furnace, according to which, continuously, into a tank made of refractory material containing a molten pool that is constantly heated, fine particles are introduced of a raw material source of alumina and/or of aluminium and of a raw material source of calcium oxide and/or of calcium having a median diameter d50 less than or equal to 6,000 μm in order to melt the fine particles of raw material, and, continuously, at the outlet of the tank a mass of liquid calcium aluminates is recovered.
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公开(公告)号：US20150158733A1
公开(公告)日：2015-06-11
申请号：US14418445
申请日：2013-07-24
发明人： Hans Hunsinger , Guenter Beuchle , Peter Stemmermann , Uwe Schweike , Karolina Warzycha , Krassimir Garbev
IPC分类号： C01B33/24
CPC分类号： C01B33/24 , C04B7/3453 , Y02P40/148 , Y02P40/18 , C04B7/425 , C04B7/4476
摘要： A process for preparing dicalcium silicate includes providing a starting material comprising calcium carbonate (CaCO3) and silicon dioxide (SiO2), wherein a molar ratio of calcium:silicon (C:S) is from 1.5:1 to 2.5:1. At least one of an inorganic alkali metal salt and an alkaline earth metal salt is added as a mineralizing agent to the starting material in an amount of from 0.5 wt.-% to 20 wt.-%, based on a total weight of the starting material. The starting material is reacted with the mineralizing agent in a gas atmosphere having a CO2 partial pressure of from 0.05 MPa to 0.2 MPa at a temperature of from 900° C. to 1100° C. so as to obtain a dicalcium silicate product. The dicalcium silicate product comprises a content of an unreacted starting material of
摘要翻译： 制备硅酸二钙的方法包括提供包含碳酸钙（CaCO 3）和二氧化硅（SiO 2）的原料，其中钙：硅（C：S）的摩尔比为1.5:1至2.5:1。 基于起始物的总重量，将至少一种无机碱金属盐和碱土金属盐作为矿化剂加入原料中，其量为0.5重量％至20重量％ 材料。 使原料与矿化剂在900〜200℃的CO 2分压为0.05MPa〜0.2MPa的气体气氛中反应，得到硅酸二钙制品。 硅酸二钙产品包含的未反应原料的含量<5重量％，总碳含量<1.5重量％，各自以硅酸二钙产物的重量计。
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6.发明申请公开(公告)号：US20110073013A1
公开(公告)日：2011-03-31
申请号：US12922499
申请日：2009-03-12
CPC分类号： C04B7/44 , C04B7/323 , F27D21/02 , C04B7/40 , C04B7/4476
摘要： The invention relates to a method for manufacturing a sulfoaluminous or belitic sulfoaluminous clinker from a raw mix formed from a mixture including minerals containing calcium, aluminum, silica, iron, and sulfur, preferably in sulfate form, and is characterized in that the method comprises the steps including: at least partially dehydrating and decarbonating the mixture through placement in a vertical kiln (1) comprising a substantially vertical chamber (2) wherein the mixture is heated, the chamber (2) of the vertical kiln (1) being supplied with hot gases the temperature of which is between 900 and 1150° C; extracting the dehydrated and decarbonated mixture from the vertical kiln (1) and conveying the same in a continuous kiln (4) comprising a furnace (5) and a transporting means (6) for transporting the mixture across the furnace (5); heating the mixture from the vertical kiln (1) by passing the mixture through the furnace (5) via the transporting means (6) such that a clinkerization of the mixture is obtained, the average passage time in the furnace being greater than 15 minutes.
摘要翻译： 本发明涉及一种从含有钙，铝，二氧化硅，铁和硫的矿物的混合物形成的原料混合物中制造磺化铝或贝氏硫铝质熟料的方法，优选硫酸盐形式，其特征在于该方法包括 步骤包括：将混合物至少部分地脱水和脱碳，放置在垂直窑（1）中，所述垂直窑（1）包括基本垂直的室（2），其中混合物被加热，垂直窑（1）的室（2）被供给热 气体的温度在900和1150℃之间; 从垂直窑（1）中提取脱水和脱碳的混合物，并在包括炉（5）和输送装置（6）的连续窑（4）中输送脱水和脱碳的混合物，以将混合物输送到炉子（5）上; 通过使混合物通过输送装置（6）将混合物通过炉（5）从混合物中加热混合物，从而获得混合物的熟料，炉中的平均通过时间大于15分钟。
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公开(公告)号：US20240150236A1
公开(公告)日：2024-05-09
申请号：US18284045
申请日：2022-03-18
发明人： Eike WILLMS , Patrick BRUNELOT , Martin UHDE , Olaf ONTRUP , Constantin KIMMIG , Jost LEMKE
CPC分类号： C04B7/4469 , C04B7/4476 , F27B15/006 , F27B15/08 , F27M2003/03
摘要： The present invention relates to apparatus for thermal treatment of a mineral starting material, wherein the apparatus comprises a calciner, wherein the calciner comprises at least a first calciner section and a second calciner section, wherein the first calciner section is arranged vertically, wherein the second calciner section is arranged at an incline, wherein the second calciner section has an angle α between the horizontal and the flow direction of the second calciner section, wherein the angle α is between 20° and 80°, wherein the first calciner section has a first hydraulic diameter dh,1, wherein the second calciner section has a second hydraulic diameter dh,2, wherein the second hydraulic diameter dh,2 is less than or equal to the first hydraulic diameter dh,1 multiplied by the sine of the angle α.
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公开(公告)号：US20230373853A1
公开(公告)日：2023-11-23
申请号：US18247805
申请日：2021-10-05
发明人： Marc FEISS
CPC分类号： C04B7/4476 , C04B7/432 , C04B7/475
摘要： A method for the thermal treatment of clays by: preheating the clay, which is suspended in a carrier gas, in a heat exchanger; thermally treating the clay in a calcination stage operated under chemically oxidizing conditions; subsequently thermally treating the clay in a calcination stage operated under chemically reducing conditions; cooling the clay in a cooling stage operated under chemically reducing conditions; cooling the clay in a cooling stage operating under chemically oxidizing conditions.
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公开(公告)号：US09751771B2
公开(公告)日：2017-09-05
申请号：US14418445
申请日：2013-07-24
发明人： Hans Hunsinger , Guenter Beuchle , Peter Stemmermann , Uwe Schweike , Karolina Giziewicz , Krassimir Garbev
CPC分类号： C01B33/24 , C04B7/3453 , Y02P40/148 , Y02P40/18 , C04B7/425 , C04B7/4476
摘要： A process for preparing dicalcium silicate includes providing a starting material comprising calcium carbonate (CaCO3) and silicon dioxide (SiO2), wherein a molar ratio of calcium:silicon (C:S) is from 1.5:1 to 2.5:1. At least one of an inorganic alkali metal salt and an alkaline earth metal salt is added as a mineralizing agent to the starting material in an amount of from 0.5 wt.-% to 20 wt.-%, based on a total weight of the starting material. The starting material is reacted with the mineralizing agent in a gas atmosphere having a CO2 partial pressure of from 0.05 MPa to 0.2 MPa at a temperature of from 900° C. to 1100° C. so as to obtain a dicalcium silicate product. The dicalcium silicate product comprises a content of an unreacted starting material of
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公开(公告)号：US08764438B2
公开(公告)日：2014-07-01
申请号：US13054947
申请日：2009-07-28
申请人： Detlev Kupper , Dietmar Schulz
发明人： Detlev Kupper , Dietmar Schulz
IPC分类号： F27B15/00 , F27B14/00 , F27D7/00 , F27B9/40 , F27D19/00 , C04B7/38 , C04B2/10 , C04B7/60 , F23J11/00 , F23J15/00 , F23B70/00 , F23B80/02 , F23C9/00 , F23N5/02
CPC分类号： C04B7/4492 , C04B7/361 , C04B7/364 , C04B7/4476 , F27B7/10 , F27B7/2033 , F27B7/2041 , F27D17/008
摘要： In the method according to the invention for operating a cement plant, the raw meal is preheated in a preheating zone, the preheated material is precalcined in a calcining zone and the precalcined material is finally sintered in a sintering zone. The cement plant is operated in such a manner that the precalcined material which is supplied to the sintering zone has an SO3 concentration of at least 5.5% by mass and a CaSO4 proportion of at least 75%, preferably 90%, of the total salt content.
摘要翻译： 在根据本发明的用于操作水泥厂的方法中，将生料在预热区域中预热，将预热的材料在煅烧区中预煅烧，并且将预煅烧材料最终在烧结区中烧结。 该水泥厂的运行方式为：向烧结区供给的预煅烧材料的SO 3浓度为5.5质量％以上，CaSO 4比例为总盐含量的75％以上，优选为90％ 。
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