Mining Equipment and Systems : Theory and Practice of Exploitation and Reliability (Hardcover)

ContentsPreface and acknowledgements List of major notations Introduction: Terotechnology and Theory of exploitation 1 Exploitation theory 9 Fundamentals 9 Exploitation theory in mining ? preliminaries 13 Statistical diagnostics 17 Randomness of a sample 19 Outliers analysis 22 Stationarity testing of sequences 29 Stationarity testing of variance in sequences 34 Cyclical component tracing 38 Autocorrelation analysis 47 Homogeneity of data 50 Mutual independence of random variables 54 Mutual dependence of random variables 56 Exploitation process ? Cases of study 65 An exploitation process of an underground monorail suspended loco 66 An exploitation process of a truck in a shovel-truck system 75 An exploitation process of a power shovel 82 Exploitation processes of a continuous miner and a shuttle car 85 Reliability and its models applied for a single piece of equipment 95 Belt conveyors 95 5.1.1. Stream of failures model 96 5.1.2. Process of changes of states: work-repair type 100 Hoisting installations 105 Hoist head ropes 110 5.3.1. A model of the hoist head rope wear process of a fatigue type 110 5.3.2. Approximation functions applied 115 5.3.3. Memory in the wearing process of ropes ? further approximation functions 119 5.3.4. Rope reliability 128 System of machines operating in parallel 141 Systems of machines of continuous operation 147 Introduction 147 Principles of reduction of series systems 151 Cases of study 154 Calculation of systems 172 Quick approximation of system output 174 Semi-Markov systems 176 Cyclical systems ? selected problems 197 A general model of queue theory 197 Mathematical classification of cyclical systems 201 The repairman problem 202 The Palm model 203 A system without losses 207 Erlangian systems 210 The Takacs model 216 The Maryanovitch model 222 The randomised Maryanovitch model 227 8.10. The G/G/k/r model for heavy traffic situation 236 Combined systems 247 A shovel-truck system and in-pit crushing 247 A shovel-truck system and an inclined hoist of the TruckLift type 266 A stream of extracted rock? shaft bin ? hoist 288 Special topic: Homogeneity of a shovel-truck system 313 References 319