This is 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: History; Types of Rotary Kilns; Refractories; Fuels; Combustion; The Flame; Heat Transfer; Heat Balances; The Chemistry of Kiln Feed and Clinker, Reaction Zones in the Rotary Kiln; Coating and Ring Formation in a Rotary Kiln; The Air Circuit in a Rotary Kiln: Movement of the Material Through The Kiln; Kiln Operating and Control Methods; Instrumentation; Burning Zone Control; Fuel Systems; Clinker cooler Control; Kiln Exit-Gas Temperature Control; Feed-Rate Control; Kiln Starts and Shutdowns; The 27 Basic Kiln Conditions; Kiln Emergency Conditions; Safety and Accident Prevention; Appendix: A KILN OPERATOR'S QUIZ; Glossary; Conversion Tables; Index. See also: F.M. LEA's, THE CHEMISTRY OF CEMENT AND CONCRETE, Third Edition: ISBN 978-0-8206-0212-7; Kurt Peray, The Cement Manufacturer's Handbook: ISBN 0820603686. Visit us at www.chemical-publishing.com

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. This new edition contains an updated CFD section with inclusion of recent case studies and in line with recent developments covers pyrolysis processes, torrefaction of biomass, application of rotary kilns in C02 capture and information on using rotary kilns as incinerators for hydrocarbons. - Provides essential information on fluid flow, granular flow, mixing and segregation, and aerodynamics during turbulent mixing and recirculation - Gives guidance on which fuels to choose, including options such as natural gas versus coal-fired rotary kilns - Covers principles of combustion and flame control, heat transfer and heating and material balances - New edition contains information on pyrolysis processes with low temperatures and torrefaction of biomass. It also covers calcination of petcoke, how rotary kilns are used as incinerators for chlorinated hydrocarbons. - Includes updated material on CFD simulation of kiln gas and solids flow with a selection of recent case studies.

This book provides process engineers with all of the information necessary for installation, maintenance and management of refractory in a cement industry. It describes how to characterize the refractory material and select refractories for various equipments in the cement plant. The author explains refractory installation, in general, and the rotary kiln specifically, as it is distinct from static furnaces used in metallurgical or process industries. It also details the chemical and physical factors that influence refractory performance and has discussed the mechanism of degradation of refractories with special emphasis on thermo-chemical and thermo-mechanical aspects. The heat transfer calculation and energy loss from the equipment surfaces has been addressed. A chapter in the book is dedicated for the management of refractory quality and the installation quality at the site. Maximizes reader understanding of the operating conditions in different equipments and how those are related to selection of refractories; Details the process variables and their influences on the performance of the refractories; Elucidates subtle points of refractory installation to ensure optimal performance; Presents heat transfer calculations and quality management protocols of refractory installation. Reinforces the concepts with many illustrations and tables.

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.

This unique handbook contains the most essential engineering formulas used in the cement manufacturing process. All formulas are presented in both English and metric systems of units. Examples are given to familiarize the reader with the usefulness of these formulas. The book can be used as a text manual for courses in cement technology, and as a reference for solving operating problems. The book is equally valuable for the manager supervisor, chemist, and operator as it is to the cement plant engineer.

The book is an outcome of the author’s active professional involvement in research, manufacture and consultancy in the field of cement chemistry and process engineering. This multidisciplinary title on cement production technology covers the entire process spectrum of cement production, starting from extraction and winning of natural raw materials to the finished products including the environmental impacts and research trends. The book has an overtone of practice supported by the back-up principles.

Nonlinear System Identification: NARMAX Methods in the Time, Frequency, and Spatio-Temporal Domains describes a comprehensive framework for the identification and analysis of nonlinear dynamic systems in the time, frequency, and spatio-temporal domains. This book is written with an emphasis on making the algorithms accessible so that they can be applied and used in practice. Includes coverage of: The NARMAX (nonlinear autoregressive moving average with exogenous inputs) model The orthogonal least squares algorithm that allows models to be built term by term where the error reduction ratio reveals the percentage contribution of each model term Statistical and qualitative model validation methods that can be applied to any model class Generalised frequency response functions which provide significant insight into nonlinear behaviours A completely new class of filters that can move, split, spread, and focus energy The response spectrum map and the study of sub harmonic and severely nonlinear systems Algorithms that can track rapid time variation in both linear and nonlinear systems The important class of spatio-temporal systems that evolve over both space and time Many case study examples from modelling space weather, through identification of a model of the visual processing system of fruit flies, to tracking causality in EEG data are all included to demonstrate how easily the methods can be applied in practice and to show the insight that the algorithms reveal even for complex systems NARMAX algorithms provide a fundamentally different approach to nonlinear system identification and signal processing for nonlinear systems. NARMAX methods provide models that are transparent, which can easily be analysed, and which can be used to solve real problems. This book is intended for graduates, postgraduates and researchers in the sciences and engineering, and also for users from other fields who have collected data and who wish to identify models to help to understand the dynamics of their systems.

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.