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[1993] Record of Conference Papers 35th IEEE Cement Industry Technical最新文献

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State of the art in high compression comminution 最先进的高压缩粉碎技术
[1993] Record of Conference Papers 35th IEEE Cement Industry Technical Pub Date : 1993-05-23 DOI: 10.1109/CITCON.1993.296972
F. Feige
{"title":"State of the art in high compression comminution","authors":"F. Feige","doi":"10.1109/CITCON.1993.296972","DOIUrl":"https://doi.org/10.1109/CITCON.1993.296972","url":null,"abstract":"The author presents a historical review and the working principles of high compression comminution. The present state of high compression comminution is discussed from the mechanical point of view and from the process technology point of view. An attempt is made to compare the process engineering aspects of high-pressure grinding rolls and roller grinding mills.<<ETX>>","PeriodicalId":350403,"journal":{"name":"[1993] Record of Conference Papers 35th IEEE Cement Industry Technical","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121078487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Kiln stabilization and control-a COMDALE/C expert system approach 窑稳定与控制——COMDALE/C专家系统方法
[1993] Record of Conference Papers 35th IEEE Cement Industry Technical Pub Date : 1993-05-23 DOI: 10.1109/CITCON.1993.296984
M. Hall
{"title":"Kiln stabilization and control-a COMDALE/C expert system approach","authors":"M. Hall","doi":"10.1109/CITCON.1993.296984","DOIUrl":"https://doi.org/10.1109/CITCON.1993.296984","url":null,"abstract":"The kiln back-end temperature is known to be a key factor in the stability of kiln operation. A kiln control strategy that relies on consistent adjustment of parameters to maintain a stable back-end temperature can significantly improve the kiln performance. Such a control strategy, based on the 27 basic kiln conditions derived from burning-zone temperature, back-end temperature, and oxygen percent, has been developed and implemented with expert systems technology. The approach provides a simplified methodology that is independent of the kiln, and addresses the main requirements associated with developing expert system applications for kiln control. The methodology is described in detail, and results are presented. A method for displaying the complete kiln status without presenting any numerical values of parameters is described.<<ETX>>","PeriodicalId":350403,"journal":{"name":"[1993] Record of Conference Papers 35th IEEE Cement Industry Technical","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129223069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Power frequency electric and magnetic field exposure and human health 工频电磁场暴露与人体健康
[1993] Record of Conference Papers 35th IEEE Cement Industry Technical Pub Date : 1993-05-23 DOI: 10.1109/CITCON.1993.296979
M.I. Walsh, K.E. Donnelly
{"title":"Power frequency electric and magnetic field exposure and human health","authors":"M.I. Walsh, K.E. Donnelly","doi":"10.1109/CITCON.1993.296979","DOIUrl":"https://doi.org/10.1109/CITCON.1993.296979","url":null,"abstract":"Issues relating to public concern over exposure to power frequency electric and magnetic fields are surveyed. Influential health studies of residential and occupational exposures leading to this concern are mentioned. Standards are proposed, based on limiting induced currents to the level of natural body currents. These are much higher than levels of residential and most occupational exposures. Some measurement considerations for heavy power industries are discussed in regard to increasingly sophisticated power control circuits.<<ETX>>","PeriodicalId":350403,"journal":{"name":"[1993] Record of Conference Papers 35th IEEE Cement Industry Technical","volume":"1242 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128386768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Equipment and design considerations for environmentally safe cement distribution terminals 环境安全水泥配送终端的设备和设计考虑
[1993] Record of Conference Papers 35th IEEE Cement Industry Technical Pub Date : 1993-05-23 DOI: 10.1109/CITCON.1993.296980
F. Wuertele
{"title":"Equipment and design considerations for environmentally safe cement distribution terminals","authors":"F. Wuertele","doi":"10.1109/CITCON.1993.296980","DOIUrl":"https://doi.org/10.1109/CITCON.1993.296980","url":null,"abstract":"The factors which have created a need for small, flexible cement distribution terminals are reviewed, and the environmental concerns affecting the design and construction of modern cement distribution facilities are discussed. Pneumatic conveying systems remain the only type of equipment which is environmentally acceptable for loading, unloading and distribution of cement everywhere. With pneumatic unloading, it is fully acceptable to operate with open hatches. To help eliminate dust during the unloading process, the third boom section of the vacuum unloading arm has been redesigned by some companies within the industry to allow 360 degrees C operation. With this feature, the vacuum arm can reach all corners of the ship's hold and even vacuum cement from behind web frames and structural supports. This gives the pneumatic unloader the ability to unload a hold evenly, layer by layer without the creation of dust.<<ETX>>","PeriodicalId":350403,"journal":{"name":"[1993] Record of Conference Papers 35th IEEE Cement Industry Technical","volume":"os-19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127690725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Be a manager, go to jail: California Corporate Criminal Liability Act of 1989 当经理，进监狱:1989年加州公司刑事责任法案
[1993] Record of Conference Papers 35th IEEE Cement Industry Technical Pub Date : 1993-05-23 DOI: 10.1109/CITCON.1993.296982
L.K. Largent
{"title":"Be a manager, go to jail: California Corporate Criminal Liability Act of 1989","authors":"L.K. Largent","doi":"10.1109/CITCON.1993.296982","DOIUrl":"https://doi.org/10.1109/CITCON.1993.296982","url":null,"abstract":"In 1989 California enacted a law that will imprison managers in work environments for as long as three years for failing to report a seriously concealed danger that might physically threaten employees or consumers. Currently, the Los Angeles District Attorney's office is looking at eight possible cases in which to apply the Corporate Criminal Liability Act. The responsibilities imposed by the Act require managerial employees, under threat of criminal or civil prosecution, to report their company's unsafe work practices. The Act appears to vest governmental agencies with supervisory authority of equal stature to the employers. Since codification of the Act into the penal code, 387, prosecutors are still learning how to apply the code with greater efficiency and effectiveness.<<ETX>>","PeriodicalId":350403,"journal":{"name":"[1993] Record of Conference Papers 35th IEEE Cement Industry Technical","volume":"149 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124890140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Specifications and maintenance of girth gears 周长齿轮的规格和维护
[1993] Record of Conference Papers 35th IEEE Cement Industry Technical Pub Date : 1993-05-23 DOI: 10.1109/CITCON.1993.296978
D. Kress
{"title":"Specifications and maintenance of girth gears","authors":"D. Kress","doi":"10.1109/CITCON.1993.296978","DOIUrl":"https://doi.org/10.1109/CITCON.1993.296978","url":null,"abstract":"The American Gear Manufacturers Association has issued a new product standard on the rating of mill and kiln gears. The base document for the new standard is also new and can lead to some confusion. The author attempts to clear up the difference in rating between the old and new girth gear standards. The maintenance of girth gears is described. Lubrication of girth gears is a key to their long life and is discussed.<<ETX>>","PeriodicalId":350403,"journal":{"name":"[1993] Record of Conference Papers 35th IEEE Cement Industry Technical","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125497094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Operational results of a vertical roller mill modified with a high efficiency classifier 用高效分级机改造立式辊磨机的运行效果
[1993] Record of Conference Papers 35th IEEE Cement Industry Technical Pub Date : 1993-05-23 DOI: 10.1109/CITCON.1993.296976
D. Salzborn, A. Chin-Fatt
{"title":"Operational results of a vertical roller mill modified with a high efficiency classifier","authors":"D. Salzborn, A. Chin-Fatt","doi":"10.1109/CITCON.1993.296976","DOIUrl":"https://doi.org/10.1109/CITCON.1993.296976","url":null,"abstract":"Major modifications have been made to a roller mill in British Columbia. It is possible to identify their effect on the mill system. A good production increase was attained. While this increase was at a coarser raw meal fineness, there was no adverse affect noted on the clinker quality or on the pyro system operation. The particle size distributions of the raw meal before and after the static classifier was replaced show a definite improvement in eliminating the coarse fraction in the raw meal. The data confirm that in addition to rotor speed control, common to all dynamic classifiers, the high efficiency classifier will also allow the slope of the particle size distribution to be varied. This is achieved by adjusting the guide vane settings. Particle size analyses confirm that a more uniform raw meal is being made.<<ETX>>","PeriodicalId":350403,"journal":{"name":"[1993] Record of Conference Papers 35th IEEE Cement Industry Technical","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124229311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 14
Modern technology impact on power usage in cement plants 现代技术对水泥厂用电的影响
[1993] Record of Conference Papers 35th IEEE Cement Industry Technical Pub Date : 1993-05-23 DOI: 10.1109/CITCON.1993.296975
Sam Fujimoto
{"title":"Modern technology impact on power usage in cement plants","authors":"Sam Fujimoto","doi":"10.1109/CITCON.1993.296975","DOIUrl":"https://doi.org/10.1109/CITCON.1993.296975","url":null,"abstract":"Both power usage and power rates have increased such that in many North American and European cement plants, the cost of electricity is not higher than the cost of fuel. As a result, many technological innovations have to combat this trend. An overview of these advances is provided. All of them feature ways to reduce specific power usage in the cement industry. Specific topics addressed include electrical power management, gas handling and pneumatic systems, motors and transmissions, and comminution and separation.<<ETX>>","PeriodicalId":350403,"journal":{"name":"[1993] Record of Conference Papers 35th IEEE Cement Industry Technical","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127101177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 24
Intelligent alarm handling in cement plants-lessons learned from the nuclear industry 水泥厂的智能报警处理——从核工业中吸取的教训
[1993] Record of Conference Papers 35th IEEE Cement Industry Technical Pub Date : 1993-05-23 DOI: 10.1109/CITCON.1993.296986
A. Henningsen, J. Kemmerer
{"title":"Intelligent alarm handling in cement plants-lessons learned from the nuclear industry","authors":"A. Henningsen, J. Kemmerer","doi":"10.1109/CITCON.1993.296986","DOIUrl":"https://doi.org/10.1109/CITCON.1993.296986","url":null,"abstract":"Building on work done at the Halden Reactor Project and others, an intelligent alarm module (IAM) has been developed, specifically for cement and related processes, that integrates various alarm handling techniques and provides an effective way to validate and manage alarm signals. Being fully integrated with the conventional alarm system, the IAM toolbox makes it possible to focus on the areas where the conventional alarm system does not offer a satisfactory performance.<<ETX>>","PeriodicalId":350403,"journal":{"name":"[1993] Record of Conference Papers 35th IEEE Cement Industry Technical","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126136418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
The North American cement situation: trends in investment and diversification 北美水泥形势:投资和多样化趋势
[1993] Record of Conference Papers 35th IEEE Cement Industry Technical Pub Date : 1900-01-01 DOI: 10.1109/CITCON.1993.296996
R. Grancher
{"title":"The North American cement situation: trends in investment and diversification","authors":"R. Grancher","doi":"10.1109/CITCON.1993.296996","DOIUrl":"https://doi.org/10.1109/CITCON.1993.296996","url":null,"abstract":"The cement industries of the US, Canada, and Mexico are compared in the context of the North American Free Trade Agreement, with primary focus on the US cement industry. Commentary and analysis on the Canadian and Mexican cement industry conditions are made where relevant to the US situation. With regard to investment it is noted that productivity, rather than capacity, has become the central priority in the US. Product line expansion and vertical integration have been key elements in diversification. It is observed that the US industry's present investment and diversification choices tend to stay more closely defined and based upon core enterprises of manufacturing and marketing a construction material than in the past.<<ETX>>","PeriodicalId":350403,"journal":{"name":"[1993] Record of Conference Papers 35th IEEE Cement Industry Technical","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129685714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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