http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
The aim of process calculations is to evaluate the performance of minerals and coal processing operations in terms of efficiency of the operation, grade of the final products and recovery of the required constituents. To meet these requirements, in-depth detailed calculations are illustrated in this book. This book is designed to cover all the process calculations. The method and/or steps in process calculations have been described by taking numerical examples. Process calculations illustrated in a simple and self explanatory manner based on two basic material balance equations will allow the reader to understand the contents thoroughly. Inclusion of elaborate process calculations in every chapter is the highlight of this book. This book is unique and devoted entirely to the process calculations with sufficient explanation of the nature of the calculations. This book will prove useful to all: from student to teacher, operator to engineer, researcher to designer, and process personnel to plant auditors concerned with minerals and coal processing.
Cover; Half Title; Title Page; Copyright Page; Dedication; Table of Contents; Preface; Acknowledgements; List of tables; List of figures; 1 Minerals and coal; 1.1 Types of minerals; 1.2 Mineral processing; 1.3 Coal; 1.3.1 Proximate analysis; 1.3.1.1 Determination of moisture; 1.3.1.2 Determination of volatile matter; 1.3.1.3 Determination of ash; 1.3.1.4 Determination of fixed carbon; 1.3.2 Expression of analytical results on different bases; 1.3.2.1 As received or As sampled; 1.3.2.2 Air-dried; 1.3.2.3 Dry or moisture free; 1.3.2.4 Dry, ash free (d.a.f).
1.3.2.5 Dry, mineral matter free (d.m.m.f)1.3.3 Calculations on different bases; 1.3.3.1 As received or As sampled basis; 1.3.3.2 Air-dried basis; 1.3.3.3 Dry or moisture free basis; 1.3.3.4 Dry, ash free (d.a.f) basis; 1.3.3.5 Dry, mineral matter free (d.m.m.f) basis; 1.4 Varieties of coal; 1.5 Coal processing; 1.6 Problems for practice; 2 Material (mass) balance; 3 Sampling; 4 Size analysis; 4.1 Sieve analysis; 4.2 Testing method; 4.3 Presentation of particle size distribution data; 4.4 Particle size distribution equations; 4.5 Size assay analysis; 4.6 Problems for practice; 5 Screening.
5.1 Purpose of screening5.2 Screen; 5.3 Screen action; 5.3.1 Factors affecting the rate of screening; 5.4 Material balance; 5.5 Screen efficiency; 5.6 Tromp curve; 5.7 Problems for practice; 6 Density; 6.1 Solids and pulp; 6.2 Retention time; 6.3 Miscible liquids; 6.4 Problems for practice; 7 Liberation; 8 Comminution; 8.1 Objectives of comminution; 8.2 Laws of comminution; 8.3 Types of comminution operations; 8.4 Problems for practice; 9 Crushing; 9.1 Types of crushers; 9.2 Crushing operation; 9.3 Open and closed circuit crushing operations; 9.3.1 Open circuit crushing operation.
9.3.2 Closed circuit crushing operation9.4 Problems for practice; 10 Grinding; 10.1 Grinding action; 10.2 Wet and dry grinding; 10.3 Grinding circuits; 10.4 Problems for practice; 11 Principles of settling; 11.1 Laminar and turbulent flows; 11.2 Fluid resistance; 11.3 Terminal velocity; 11.4 Free settling; 11.5 Hindered settling; 11.6 Equal settling particles; 11.7 Settling ratio; 11.8 Settling of large spheres in a suspension of fine spheres; 11.9 Problems for practice; 12 Classification; 12.1 Classifiers; 12.2 Efficiency of separation in hydrocyclone; 12.3 Problems for practice.
13 Beneficiation operations13.1 Gravity concentration; 13.2 Froth flotation; 13.3 Magnetic separation; 13.4 Electrical separation; 14 Sink and float; 15 Float and sink; 15.1 Float and sink test; 15.2 Near gravity materials; 15.3 Yield reduction factor; 15.4 Washability Index; 15.5 Optimum degree of washability (ODW); 15.6 Washability number; 15.7 Effect of sizing on washability characteristics of a coal; 15.8 Mayer curve; 15.8.1 Construction of M-curve; 15.8.2 M-curve for a three product system; 15.8.3 M-curve for blended cleaned and un-cleaned coal.
D.V. Subba Rao, formerly Head of the Department of Mineral Beneficiation, S.D.S. Autonomous College, Andhra Pradesh, India.
Includes bibliographical references and indexes.
Dr. D.V. Subba Rao is retired associate professor and head of the department of Mineral Beneficiation at S.D.S. Autonomous College, (India). He has 32 years of experience at S.D.S. Autonomous College and presently serves as a guest faculty in the department of Mining Engineering at GIET, India. He has published multiple books on mineral beneficiation and has been member and chairman of academic bodies such as BOS in Mineral Beneficiation, BOS in Materials Handling and BOS in Applied Chemistry as well as the academic council and governing body of S.D.S. Autonomous College.
Leiden, The Netherlands : CRC Press/Balkema, [2016]