序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
21 控制将含有混合物的石灰烧成生石灰的过程的方法和设备 CN200980160281.4 2009-07-03 CN102472582A 2012-05-23 L·莱邓格; E·达尔克维斯特
一种用于控制在回转窑(2)中燃烧含有混合物的石灰(CaCO3)和将其转换成煅石灰(CaO)的过程的方法和设备(1),回转窑(2)具有由壁(4)包围的伸长的空腔(3)和被设置来加热空腔(3)的燃烧炉(5)。该方法包括收集在沿空腔(3)的纵轴(20)的多个测量点处的壁(4)中的温度的测量数据,至少根据壁(4)中的温度的测量数据和借助于描述沿窑(2)的空腔(3)的温度的热模型,预测沿空腔(3)的纵轴(20)的实际的温度梯度,根据所预测的沿空腔(3)的温度梯度和用于控制窑(2)中温度的预定的控制策略,确定沿空腔(3)的期望的温度梯度,以便控制在窑(2)的壁(4)内侧上的石灰沉积的区域和减轻石灰沉积(10)的缺陷
22 泥制造装置及制造方法 CN200780049516.3 2007-11-30 CN101578243A 2009-11-11 中村朋道; 坂本幸教; 松良刚
发明是提供一种可使未燃含有量保持在容许范围内,同时使飞灰的使用量增加的泥制造装置等。该水泥制造装置包括用以除去石膏内所含有的未燃碳的除去机构、及将已由除去机构除去未燃碳的石膏与熟料一起粉碎以产生水泥的粉碎机构。减少水泥中的未燃碳的总含有量,与此相应地,使飞灰的使用量增加。前述除去机构可除去石膏内所含有的未燃碳,并且可除去飞灰内所含有的未燃碳,前述粉碎机构可将已除去未燃碳的飞灰与已除去未燃碳的石膏及熟料一起粉碎,而前述除去机构亦可在除去飞灰内所含有的未燃碳的同时,除去石膏内所含有的未燃碳。
23 一种硫酸盐泥生产方法 CN200710014106.7 2007-03-30 CN101050072A 2007-10-10 孙建成; 王建军; 孙海文; 聂峰
一种硫酸盐泥生产方法,使用窑外分解技术生产,利用窑尾废烟气的热量,同时喷入粉,分解炉控制顶部温度为780-840℃。具体地控制分解炉的顶部温度为815-825℃,入窑生料分解率控制在94-96%。采用篦式冷却机对硫铝酸盐熟料进行冷却。各种生产参数的控制采用微机在中央控制室进行控制,如窑转速、生料下料量、窑头喂煤量等参数的调整得到集中控制,确保熟料质量。为了节约成本,可用脱硫石膏代替天然二水石膏,用脱模废石膏替代天然石膏作缓凝剂。采用上述方法生产硫铝酸盐水泥的有益效果是:(1)产量提高。(2)煤耗降低。(3)质量得到提高。(4)降低了成本。
24 一种高镁低热酸盐泥熟料及其制备方法 CN03157168.9 2003-09-17 CN101041560A 2007-09-26 隋同波; 文寨军; 王晶; 张忠伦; 范磊; 刘克忠; 王显斌; 刘云
发明公开了一种高镁低热酸盐泥熟料,其矿物组成为(重量百分比):C2S 40~65%,C3S 15~40%,C3A 1~8%,C4AF 10~25%;并且,上述水泥熟料中,MgO含量在2.0~6.0%。本发明同时公开一种上述高镁低热硅酸盐水泥熟料的制备方法,包括将水泥生产原材料生产成水泥熟料的必要步骤,并包括使水泥熟料中化镁含量控制在2.0~6.0%的步骤。本发明提供的高镁低热硅酸盐水泥熟料,能够在一般水泥厂普遍生产,自身水化热低、干缩率低、抗侵蚀性及耐磨性好,并且在混凝土使用中可以减少混凝土裂缝,提高抗裂能,特别适合在高性能混凝土、大体积混凝土和水工混凝土等工程上使用。
25 泥烧成五率值化学平衡配料法 CN98108158.4 1998-04-27 CN1177774C 2004-12-01 马中奇; 张婉玉; 马斌; 马玉萍; 马艳
发明涉及泥生产配料方法的数学模型,其特征是该模型包含SiO2、Al2O3、Fe2O3、CaO、MgO、SO3、CaF2、K2O、Na2O、BaO、MnO2、P2O5、TiO2等十三种以上化物的化学平衡关系。实施本发明比三率值配料法节耗25~38%,耗电下降20~30%,熟料质量稳定在62.5~72.5兆帕。本发明亦通用于特种水泥的生产配料。
26 泥全黑生料配热控制方法 CN97116769.9 1997-08-19 CN1055907C 2000-08-30 刘长发; 刘玉兵; 赵鹰立; 张玉昌
一种泥黑生料配热控制技术,涉及物料取样及分析方法,主要用于水泥全黑生料制备过程中保持生料发热量的稳定,通过设计的“状物料取样装置”及弹测定样灰份的方法,使生料配热波动控制在1.13%,比目前的常规方法提高4倍以上,控制滞后时间显著缩短,对于稳定熟料质量,提高立窑产量和节约能源具有重要意义。
27 泥全黑生料配热控制技术 CN97116769.9 1997-08-19 CN1172086A 1998-02-04 刘长发; 刘玉兵; 赵鹰立; 张玉昌
一种泥黑生料配热控制技术,涉及物料取样及分析方法,主要用于水泥全黑生料制备过程中保持生料发热量的稳定,通过设计的“状物料取样装置”及弹测定样灰份的方法,使生料配热波动控制在1.13%,比目前的常规方法提高4倍以上,控制滞后时间显著缩短,对于稳定熟料质量,提高立窑产量和节约能源具有重要意义。
28 解决泥安定性的方法 CN93110603.6 1993-03-06 CN1091727A 1994-09-07 张光梁; 方国平; 何登双; 言兴华; 刘卫霞
发明是一种泥生产的配料工艺控制方法,它是通过改变传统三组分配料方式以及用控制SiO2含量替代控制CaO的方法使水泥生料三率值的合格率大幅度提高,解决生料的易烧性,使立窑煅烧时产生的液相量和液相粘度稳定,使底火和热工制度稳定使A矿的生成条件稳定存在,从而使fc降低,C3S提高,达到解决水泥的安定性和提高水泥的强度的目的。
29 METHODS FOR FORMULATING A CEMENT SLURRY FOR USE IN A SUBTERRANEAN SALT FORMATION US15870714 2018-01-12 US20180135382A1 2018-05-17 Siva Rama Krishna JANDHYALA; Krishna M. RAVI; Sandip Prabhakar PATIL; Krishna Babu YERUBANDI; Abhimanyu Pramod DESHPANDE; Yogesh BARHATE; Rahul Chandrakant PATIL
Methods of formulating a cement slurry for use in a subterranean salt formation, including methods for formulating a cement slurry capable of providing long-term zonal isolation within a subterranean salt formation. The methods also take into account the effects of treatment fluids on the cement slurry, such as drilling fluids, spacer fluids, flush fluids, or other relevant fluids used to perform a subterranean formation operation.
30 METHODS FOR FORMULATING A CEMENT SLURRY FOR USE IN A SUBTERRANEAN SALT FORMATION US14429919 2014-05-30 US20160258246A1 2016-09-08 Siva Rama Krishna Jandhyala; Krishna Ravi; Sandip Prabhakar Patil; Krishna Babu Yerubandi; Abhimanyu Deshpande; Yogesh Ramesh Barhate; Rahul Chandrakanth Patil
Methods of formulating a cement slurry for use in a subterranean salt formation, including methods for formulating a cement slurry capable of providing long-term zonal isolation within a subterranean salt formation. The methods also take into account the effects of treatment fluids on the cement slurry, such as drilling fluids, spacer fluids, flush fluids, or other relevant fluids used to perform a subterranean formation operation.
31 PERFORATED BURNER FOR A ROTARY KILN US14823313 2015-08-11 US20160046524A1 2016-02-18 JOSEPH COLANNINO; DOUGLAS W. KARKOW; CHRISTOPHER A. WIKLOF
A rotary kiln includes a stationary fuel nozzle and a perforated flame holder positioned within an inclined rotating shell. The flame holder includes a plurality of perforations that collectively confine a combustion reaction of the burner to the flame holder to shift most heat transfer from the combustion reaction from radiation heat transfer to convective heat transfer.
32 Method and device for controlling a process for burning a lime containing mixture to burnt lime US13342585 2012-01-03 US08340825B2 2012-12-25 Lars Ledung; Erik Dahlqvist
A method and a device for controlling a process for burning lime containing mixture (CaCO3) and converting it to calcinated lime (CaO) in a rotary kiln, the rotary kiln having an elongated cavity surrounded by a wall and a burner arranged to heat the cavity. The method includes collecting measurement data of the temperature in the wall at a plurality of measuring points along the longitudinal axis of the cavity, predicting the actual temperature gradient along the longitudinal axis of the cavity based at least on the measurement data of the temperature in the wall, and by means of a thermal model describing the temperature along the cavity of the kiln, determining a desired temperature gradient along the cavity based on the predicted temperature gradient along the cavity and a predetermined control strategy controlling the temperature in the kiln.
33 CEMENT MANUFACTURING APPARATUS AND METHOD US13368222 2012-02-07 US20120167806A1 2012-07-05 Tomomichi Nakamura; Yukinori Sakamoto; Tsuyoshi Matsura
A cement manufacturing apparatus capable of increasing quantity of fly ash used in the apparatus while controlling unburned carbon content in cement within a permissible range. The cement manufacturing apparatus comprises a removal means for removing unburned carbon from gypsum, and a grinding means for grinding gypsum from which unburned carbon is removed by the removal means together with clinker to generate cement. With the apparatus, total unburned carbon content in cement can be reduced, and the quantity of fly ash used in the apparatus can be, increased by the reduced amount of unburned carbon. The removal means can remove unburned carbon contained in gypsum as well as unburned carbon contained in fly ash, and the grinding means may grind the fly ash from which unburned carbon is removed together with the gypsum, from which unburned carbon is removed, and clinker.
34 METHODS OF MAKING CEMENTITIOUS COMPOSITIONS AND PRODUCTS MADE THEREBY US12789025 2010-05-27 US20110059316A1 2011-03-10 Srinivas Kilambi; Krishnan Iyer; Karthik Gopalakrishnan; Ramesh Chembeti; Niraj Singh; Satish Reddy Dhumpala; Zijun Liu; Raman Kumar Gottumukkala; Subhadeep Mukherjee
A method of making cementitious particles using combustion synthesis is described. The method uses less energy and produces lower CO2 emissions than conventional processes. By controlling the process conditions, the morphology and the properties of the particles can be easily tuned for a variety of applications. A batch reactor and a continuous conveyor type reactor that can be used for the combustion synthesis with high viscosity raw materials are also described.
35 Method of producing portland cement US11359610 2006-02-23 US20060191444A1 2006-08-31 Louis Wagner
A method of producing Portland cement includes the steps of: preparing a raw material of the Portland cement; preparing Municipal Solid Waste (MSW) ash; mixing the raw material and the MSW ash to obtain a mixture; feeding the mixture into a kiln; and operating the kiln to obtain the Portland cement. In the step of mixing the raw material and the MSW ash, the raw material may be mixed with the MSW ash, so that a weight% of the MSW ash is within a range of 1% to 60%. The method of producing Portland cement may further include the step of analyzing the MSW ash to determine a composition thereof, so that the raw material may be mixed with the MSW ash according to the composition of the MSW ash.
36 Kiln plant control system US10129474 2003-01-21 US06790034B1 2004-09-14 Michael John Kearns; Tony Brian Lange; Neville Frewin
A controller for a kiln plant, typically a cement plant, has a thermodynamic controller which measures a number of variables including the kiln hood temperature and one or more output gas concentrations, and controls the fuel input to the kiln to maintain the hood temperature within a desired range and a main impeller of the kiln to maintain the measured gas concentrations within a predetermined range. The invention includes a quality controller wich controls the amount of 3CaO.SiO2 present in clinker produced by the plant. The controller comprises an inner controller which controls free-lime content in the clinker and a thermodynamic outer controller.
37 Method and device for regulating the burning process of a cement burning system US496555 1983-05-20 US4498930A 1985-02-12 Heinrich Rake; Horst Herchenbach; Gernot Jager; Gerhard Franck
This invention relates to a method and device for regulating a cement burning system to make it more efficient. A product stream, in keeping with customary practice, passes successively through a pre-heating zone, a calcining zone, a sintering zone, and a cooling zone. In accordance with the present invention, the degree of deacidification of the product in the area of the calcining zone is determined by one of several methods and this determination is translated into control signals which control at least one parameter of the method in response to the degree of deacidification.
38 Methods for formulating a cement slurry for use in a subterranean salt formation US15870714 2018-01-12 US10060218B2 2018-08-28 Siva Rama Krishna Jandhyala; Krishna M. Ravi; Sandip Prabhakar Patil; Krishna Babu Yerubandi; Abhimanyu Pramod Deshpande; Yogesh Barhate; Rahul Chandrakant Patil
Methods of formulating a cement slurry for use in a subterranean salt formation, including methods for formulating a cement slurry capable of providing long-term zonal isolation within a subterranean salt formation. The methods also take into account the effects of treatment fluids on the cement slurry, such as drilling fluids, spacer fluids, flush fluids, or other relevant fluids used to perform a subterranean formation operation.
39 Perforated burner for a rotary kiln US14823313 2015-08-11 US09828288B2 2017-11-28 Joseph Colannino; Douglas W. Karkow; Christopher A. Wiklof
A rotary kiln includes a stationary fuel nozzle and a perforated flame holder positioned within an inclined rotating shell. The flame holder includes a plurality of perforations that collectively confine a combustion reaction of the burner to the flame holder to shift most heat transfer from the combustion reaction from radiation heat transfer to convective heat transfer.
40 Methods For Formulating A Cement Slurry For Use In A Subterranean Salt Formation Using Geometric Modeling US15300098 2015-03-10 US20170183964A1 2017-06-29 Siva Rama Krishna Jandhyala; Krishna M. Ravi
Methods including experimentally determining a salt creep profile for a single salt or intercalated salts in a subterranean formation, designing a proposed cement slurry based on the salt creep profile, experimentally determining whether the proposed cement slurry is capable of forming a wellbore load resistant cement sheath based on actual thermal and thermo-mechanical properties of the proposed cement slurry, theoretically determining whether the proposed cement slurry is capable of forming the wellbore load resistant cement sheath by designing an electronic, cross-section geometric model of the subterranean salt formation and simulating a condition of the wellbore loads on the cured proposed cement slurry using the geometric model, establishing a final cement slurry capable of forming the wellbore load resistant cement sheath, and performing a final cementing operation with the final cement slurry in the subterranean salt formation.
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