Rotary Kilns

Transport Phenomena and Transport Processes

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Author: Akwasi A Boateng

Publisher: Butterworth-Heinemann

ISBN: 0080557120

Category: Technology & Engineering

Page: 368

View: 8736

Rotary Kilns—rotating industrial drying ovens—are used for a wide variety of applications including processing raw minerals and feedstocks as well as heat-treating hazardous wastes. They are particularly critical in the manufacture of Portland cement. Their design and operation is critical to their efficient usage, which if done incorrectly can result in improperly treated materials and excessive, high fuel costs. This professional reference book will be the first comprehensive book in many years that treats all engineering aspects of rotary kilns, including a thorough grounding in the thermal and fluid principles involved in their operation, as well as how to properly design an engineering process that uses rotary kilns. Chapter 1: The Rotary Kiln Evolution & Phenomenon Chapter 2: Basic Description of Rotary Kiln Operation Chapter 3: Freeboard Aerodynamic Phenomena Chapter 4: Granular Flows in Rotary Kilns Chapter 5: Mixing & Segregation Chapter 6: Combustion and Flame Chapter 7: Freeboard Heat Transfer Chapter 8: Heat Transfer Processes in the Rotary Kiln Bed Chapter 9: Mass & Energy Balance Chapter 10: Rotary Kiln Minerals Process Applications ·Covers fluid flow, granular flow, mixing and segregation, and aerodynamics during turbulent mixing and recirculation ·Offers hard-to-find guidance on fuels used for rotary kilns, including fuel options such as natural gas versus coal-fired rotary kilns ·Explains principles of combustion and flame control, heat transfer and heating and material balances

The Rotary Cement Kiln

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Author: Kurt E. Peray

Publisher: California Historical Society

ISBN: 9780820603674

Category: Technology & Engineering

Page: 396

View: 8410

An indispensable reference source and training tool not only for kiln operators, but for supervisors and management staff as well. Extensive discussions on pre-heater and pre-calciner operations are included. The appendix includes a section with conversion tables, definitions of common terms relating to rotary kilns, and a suggested outline for a training program for new operators. Contents PART 1. KILN SYSTEMS AND THEORY 1. History 3 2. Types of Rotary Kilns 6 3. The Refractory 17 4. Fuels 37 5. Combustion 44 6. The Flame 63 7. Heat Transfer 83 8. Heat Balances 106 9. The Chemistry of Kiln Feed and Clinker 115 10. Reaction Zones in the Rotary Kiln 141 11. Coating and Ring Formation in a Rotary Kiln 147 12. The Air Circuit in a Rotary Kiln 155 13. Movement of Material Through the Kiln 174 PART II. KILN OPERATING PROCEDURES 199 14. Kiln Operating and Control Methods 201 15. Instrumentation 207 16. Kiln Control Variables 232 17. Fuel Systems 253 18. Clinker Cooler Control 266 19. Kiln Exit-Gas Temperature Control 292 20. Feed-Rate Control 299 2I. Kiln Starts and Shutdowns 308 22. The 27 Basic Kiln Conditions 327 23. Kiln Emergency Conditions 346 24. Safety and Accident Prevention 362 Appendix A: The International System of Units (SI) 367 Appendix B: Weights and Measures 369 Appendix C: Temperature Conversions 378 Appendix D: Kiln Operator's Quiz 382 Index 386

The Rotary Cement Kiln

Total Productive Maintenance, Techniques and Management

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Author: J.P. Saxena

Publisher: CRC Press

ISBN: 9788188305957

Category: Technology & Engineering

Page: 340

View: 7212

Structured into fourteen chapters, this volume covers various aspects of kiln maintenance and deals with the wear of components, operational parameters and their impact on the condition of the kiln, maintenance-friendly design considerations of kiln components, on-line techniques for condition monitoring, repair during operation, effective management of a kiln shutdown, and some management approaches. It presents systematic analyses of the problems encountered during the life span of the kilns and suggests appropriate method(s) to tackle them and meet the needs of engineers and operators involved. Written in simple language, containing a good blend of theory and practice, and supported with practical reference tables and figures, this book is intended for engineers, operators and maintenance workers working with cement kilns. The author, Dr. J.P. Saxena is an absolute expert in the field.

Refractory Engineering and Kiln Maintenance in Cement Plants

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Author: J.P. Saxena

Publisher: CRC Press

ISBN: 9788188305001

Category: Technology & Engineering

Page: 312

View: 1983

This book deals with two important areas that directly affect kiln availability for production. These two aspects decide if the cement plant would make profit or loss during the year. At the moment there is no book that deals with these aspects. The literature on these subjects is scattered and the totality of the subject is missing. The book Refractory Engineering and Kiln Maintenance in Cement Plants is an utmost requirement for the Cement Industry and would fulfil the needs of the Cement Industry all over the world. It has brought out various developments of refractory with the changing technological scenario. The contents is totally comprehensive in every respect and has been planned in such a way that starting from Changing Phases of Kiln Systems and Choice of Refractories, Improving the Kiln Up-time, there are also important chapters on Inspection, Storage and Packing of Refractories, Refractory Management, Kiln Maintenance with a bonus of a glossary of the technical terms. The book will serve as a handbook for production managers, production engineers, Kiln operators, refractory engineers, maintenance managers, purchase engineers, inventory engineers, warehouse officers and storekeepers.

Fuzzy Logic Control

Advances in Applications

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Author: H. B. Verbruggen,Robert Babu?ka

Publisher: World Scientific

ISBN: 9789810238254

Category: Technology & Engineering

Page: 329

View: 7562

Fuzzy logic control has become an important methodology in control engineering. This volume deals with applications of fuzzy logic control in various domains. The contributions are divided into three parts. The first part consists of two state-of-the-art tutorials on fuzzy control and fuzzy modeling. Surveys of advanced methodologies are included in the second part. These surveys address fuzzy decision making and control, fault detection, isolation and diagnosis, complexity reduction in fuzzy systems and neuro-fuzzy methods. The third part contains application-oriented contributions from various fields, such as process industry, cement and ceramics, vehicle control and traffic management, electromechanical and production systems, avionics, biotechnology and medical applications. The book is intended for researchers both from the academic world and from industry.

Pyrometry

The Papers and Discussion of a Symposium on Pyrometry Held by the American Institute of Mining and Metallurgical Engineers at Its Chicago Meeting, September, 1919, in Co_peration with the National Research Council and the National Bureau of Standards

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Author: American Institute of Mining, Metallurgical, and Petroleum Engineers

Publisher: National Academies

ISBN: N.A

Category: Pyrometers

Page: 701

View: 8638

Cement and Concrete

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Author: M.S.J Gan

Publisher: CRC Press

ISBN: 9780412790508

Category: Technology & Engineering

Page: 224

View: 2884

Cement and concrete are of great interest to the construction and civil engineering communities. This study provides an appreciation of the complex nature of these materials and a realization that most of the failures involving concrete constructions are preventable.

Advances in Neural Networks Isnn 2009

6th International Symposium on Neural Networks, Isnn 2009 Wuhan, China, May 26-29, 2009 Proceedings

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Author: Wen Yu,Haibo He,Nian Zhang

Publisher: Springer Science & Business Media

ISBN: 3642015093

Category: Computers

Page: 1207

View: 5693

The three volume set LNCS 5551/5552/5553 constitutes the refereed proceedings of the 6th International Symposium on Neural Networks, ISNN 2009, held in Wuhan, China in May 2009. The 409 revised papers presented were carefully reviewed and selected from a total of 1.235 submissions. The papers are organized in 20 topical sections on theoretical analysis, stability, time-delay neural networks, machine learning, neural modeling, decision making systems, fuzzy systems and fuzzy neural networks, support vector machines and kernel methods, genetic algorithms, clustering and classification, pattern recognition, intelligent control, optimization, robotics, image processing, signal processing, biomedical applications, fault diagnosis, telecommunication, sensor network and transportation systems, as well as applications.

China's Technological Catch-Up Strategy

Industrial Development, Energy Efficiency, and CO2 Emissions

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Author: Michael T. Rock,Michael Toman

Publisher: Oxford University Press

ISBN: 0190225653

Category: Business & Economics

Page: 448

View: 6855

Prior to 1979, China had a bifurcated and geographically-dispersed industrial structure made up of a relatively small number of large-scale, state-owned enterprises in various industries alongside numerous small-scale, energy-intensive and polluting enterprises. Economic reforms beginning in 1979 led to the rapid expansion of these small-scale manufacturing enterprises in numerous energy-intensive industries such as aluminum, cement, iron and steel, and pulp and paper. Subsequently, the government adopted a new industrial development strategy labeled "grasp the large, let go the small." The aims of this new policy were to close many of the unprofitable, small-scale manufacturing plants in these (and other) industries, create a small number of large enterprises that could compete with OECD multinationals, entice these larger enterprises to engage in high-speed technological catch-up, and save energy. China's Technological Catch-Up Strategy traces the impact of this new industrial development strategy on technological catch-up, energy use, and CO2 emissions. In doing so, the authors explore several detailed, enterprise-level case studies of technological catch-up; develop industry-wide estimates of energy and CO2 savings from specific catch-up interventions; and present detailed econometric work on the determinants of energy intensity. The authors conclude that China's strategy has contributred to substantial energy and CO2 savings, but it has not led to either a peaking of or a decline in CO2 emissions in these industries. More work is needed to cap and reduce China's CO2 emissions.

Energy Efficiency in the Cement Industry

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Author: J. Sirchis

Publisher: CRC Press

ISBN: 1851665463

Category: Architecture

Page: 180

View: 2501

This text presents the proceedings of a seminar organized by the CEC, Directorate-General for Energy and CIMPOR Cimentos de Portugal E.P. with the co-operation of Cembureau European Cement Association, held in Oporto, Portugal, 6-7 November 1989.

Industrial Combustion Testing

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Author: Charles E. Baukal, Jr.

Publisher: CRC Press

ISBN: 1420085298

Category: Technology & Engineering

Page: 784

View: 8406

Until now, anyone conducting industrial combustion tests had to either rely on old methods, go scurrying through the literature to find proven applicable methodologies, or hire top-shelf consultants such as those that work for cutting-edge companies like John Zink. Manufacturers can no longer take industrial combustion for granted. Air and noise pollution standards must be met, and today no one can afford the inefficient use of fuel. Drawing on three decades of experience, Charles Baukal Jr. is not only aware of the best methods but is responsible for designing and implementing a number of them, owning 11 patents of his own, as well as having hundreds of articles to his credit. Providing busy engineers with a convenient reference that gives them state-of-the-art techniques without having to cull through the literature, this practical compendium: Demonstrates how to conduct meaningful experiments with industrial scale combustion equipment Illustrates a number of methods through case studies Includes detailed pictures, figures, graphs, and tables, to explain processes and make sense of the data Presents valuable information on advanced diagnostics, burner and flare testing, and testing in combustors, including techniques for a variety of kilns, furnaces, and boilers Written to make better practioners out of academicians and better scholars out of hands-on engineers, this unique volume teaches academics how to work at the large scales associated with industrial combustion, while also teaching engineers the rigorous approach needed for successful modeling.

A First Course on Electrical Drives

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Author: S. K. Pillai

Publisher: New Age International

ISBN: 9788122401660

Category:

Page: 235

View: 5478

The Aim Of Revision Is Mainly To Acquaint The Students With The Recent Trends In The Development Of Electric Motors Used As Prime Movers In Electric Drive Systems.The Chapter On Introduction To Solid State Controlled Drives Has Been Expanded To Include Sections On Increasingly Used *Brushless Dcmotors And Switched-Reluctance Motors.A Separate Chapter On The More Commonly Used Position Control Drive Motors, Namely,Stepper Motors Has Been Also Incorporated.The Drives Used In The Fast Growing Petroleum Industry Have Been Included In The Chapter On Industrialapplications.

Baumaterialienkunde. Les Matériaux de construction

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Author: N.A

Publisher: N.A

ISBN: N.A

Category: Building materials

Page: N.A

View: 9942

Vol. 1-2, 6-7, 11 contain proceedings of the association's first four congresses: Zurich, 1895; Stockholm, 1897; Budapest, 1901; Brussels, 1906

Waste Treatment and Disposal

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Author: Paul T. Williams

Publisher: John Wiley & Sons

ISBN: 111868737X

Category: Technology & Engineering

Page: 424

View: 1841

Following on from the successful first edition of WasteTreatment & Disposal, this second edition has beencompletely updated, and provides comprehensive coverage ofwaste process engineering and disposal methodologies. Concentratingon the range of technologies available for household and commercialwaste, it also presents readers with relevant legislativebackground material as boxed features. NEW to this edition: Increased coverage of re-use and recycling Updating of the usage of different waste treatmenttechnologies Increased coverage of new and emerging technologies for wastetreatment and disposal A broader global perspective with a focus on comparativeinternational material on waste treatment uptake and wastemanagement policies