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Simulation of clinker grinding circuits of cement plant based on process models calibrated using GA search method

Journal of Central South University 2014年第2期21卷 799-810页

作者： A.Farzanegan E.Ghasemi Ardi A.Valian V.Hasanzadeh School of Mining College of EngineeringUniversity of Tehran Department of Mining Faculty of EngineeringUniversity of Kashan

Particle size distributions of obtained samples from several sampling campaigns were determined and raw data were mass balanced before being used in simulation *** determination of breakage function,selection function,Bond work index,residence time distribution parameters,and Whiten's model parameters for air separators and diaphragms between the two compartments of tube ball mills,performance of the circuits was simulated for given throughputs and feed particle size ***'s model parameters were determined by GA(genetic algorithm) toolbox of MATLAB *** on implemented models for modeling and simulation,optimization of circuits was carried *** increased nearly 10.5% and 15.8% in fresh feed capacity input to each tube ball *** addition,circulating load ratios of circuits are modified to 118% and 127% from low level of 57% and 22%,respectively,and also cut points of air separators are adjusted at 30 and 40 μm from high range of 53 and 97 μm,*** applications helped in well-operation and energy consumption reduction of equipments.

关键词： cement plant clinker grinding genetic algorithm simulation optimization

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The Selection and Application of Anticorrosive Materials for Flue Gas Desulfurization（FGD） System in cement plant

The Selection and Application of Anticorrosive Materials for...

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作者： Yuyun Liao Hefei cement Research ＆ Design Institute Corporation Ltd.

This paper combined with the actual case of flue gas desulfurization（FGD） system in cement plant, analyzes the corrosion environment in each area of the FGD system, and selects appropriate anticorrosive materials for different corrosion environment, so as to provide operating experience and reference for the safe, stable and efficient operation of the FGD system.

关键词： cement plant Flue Gas Desulfurization System Corrosion Environment Selection of Anticorrosive Materials

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Application of the AERMOD modeling system for environmental impact assessment of NO_2 emissions from a cement complex

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Journal of Environmental Sciences 2011年第6期23卷 931-940页

作者： Kanyanee Seangkiatiyuth Vanisa Surapipith Kraichat Tantrakarnapa Anchaleeporn W.Lothongkum Department of Chemical Engineering Faculty of EngineeringKing Mongkut's Institute of Technology LadkrabangBangkok 10520Thailand Air Quality and Noise Management Bureau Pollution Control DepartmentMinistry of Natural Resources and EnvironmentBangkok 10400Thailand Department of Environmental Health Sciences Faculty of Public HealthMahidol UniversityBangkok 10400Thailand

We applied the model of American Meteorological Society-Environmental Protection Agency Regulatory Model（AERMOD） as a tool for the analysis of nitrogen dioxide（NO2） emissions from a cement complex as a part of the environmental impact *** dispersion of NO2 from four cement plants within the selected cement complex were investigated both by measurement and AERMOD simulation in dry and wet *** values of NO2 emissions were compared with those obtained during a 7-day continuous measurement campaign at 12 *** was predicted that NO2 concentration peaks were found more within 1 to 5 km,where the measurement and simulation were in good agreement,than at the receptors 5 km further away from the reference *** QuantileQuantile plots of NO2 concentrations in dry season were mostly fitted to the middle line compared to those in wet *** can be attributed to high NO2 wet *** results show that for both the measurement and the simulation using the AERMOD,NO2 concentrations do not exceed the NO2 concentration limit set by the National Ambient Air Quality Standards（NAAQS） of *** indicates that NO2 emissions from the cement complex have no significant impact on nearby *** can be concluded that the AERMOD can provide useful information to identify high pollution impact areas for the EIA guidelines.

关键词： AERMOD environmental impact assessment Gaussian model air pollutants NO2 cement plant

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中国水泥生产碳排放系数测算典型研究

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生态环境与保护 2013年第8期 800-808页

作者：赵建安魏丹青

本文选取了中国中西部两省区两条典型新型干法熟料生产线作为实证研究对象，采用目前主流的几种方法进行测算，并通过比较分析探讨了结果发生偏差的原因。研究认为： ①单纯从熟料中 CaO和 MgO反推或者采用国际标准默认值，必然会高估... 详细信息

本文选取了中国中西部两省区两条典型新型干法熟料生产线作为实证研究对象，采用目前主流的几种方法进行测算，并通过比较分析探讨了结果发生偏差的原因。研究认为： ①单纯从熟料中 CaO和 MgO反推或者采用国际标准默认值，必然会高估水泥生产工艺排放系数，原因是生料中掺入 CaO含量较高的电石渣、钢渣、硫酸渣等替代原料时，工艺排放系数明显减小，优良做法是获取使用替代原料的种类和在生料物料中 CaO和 MgO的平均占比，折算成一个参数，对熟料法进行修正； ②中国水泥生产燃料以烟煤为主，燃料燃烧碳排放系数应在( 250～ 350)kgCO[，2]/t熟料范围内，排放系数低于 IPCC标准默认值 27％以上； ③中国区域电网排放因子较 CSI默认值高出 25％左右，更符合中国实际情况； ④中国实际水泥熟料比在 65％左右，由于缺少中国的工厂级数据，国外对中国水泥排放系数至少有 10％以上高估，导致估算值高于中国实际水泥生产排放量。另外，还针对中国水泥生产实际，提出四点碳减排措施。

关键词：水泥生产线碳排放系数测算方法典型研究 cement plant emission factor calculation methods typical research

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