Content:
Theory teaching
Introductory lecture. Classification of loading machines in underground mining. Application of loading machines. Scraper for loading and loading machines with bucket, handles, chain and rake. Calculation of the capacity and cycle time of the loading machine. Selection of loading machines. Maintenance of loading machines. Classification of transportation machines in underground mining. Machines for continuous and discontinuous transport in underground mining. Theoretical basis. Chain conveyors (drive, tension device, chains, structure). Light chain conveyors and armored chain conveyors. Application. Calculation of the capacity of the chain conveyor. Calculation of the chain conveyor in the complex configuration of the route. Rubber belt conveyors (drives, tension, return device, wipers). Rubber belt. Application. Calculation of belt width and speed. Engine power calculation. Belt selection. Selection and sizing of drums. Devices for hydraulic and pneumatic transport. Discontinuous transport in underground mining. Winches and scrapers for transport. Calculations. Means of rail transport in underground mining. Mine railway (locomotives and wagons). Calculation of locomotives, locomotive mass, traction force, braking distance. Calculation of the cycle of the composition. Calculation of the capacity of the Mine Railway. Monorail and Winch rail. Calculating the transport cycle. Trucks and service vehicles. Practical teaching
Calculations of cycle time scraper and loader with bucket. Calculating the loading capacity of the scrapers and loading machines with bucket, handles, chain and rakes. Calculation of the capacity of the chain conveyor. Calculation of the chain conveyor in the complex configuration of the route. Selection of chain conveyor. Calculation of belt width and speed. Engine power calculation. Traction force on the periphery of the drive drum. Belt selection. Selection and sizing of drums. Selection of rails. Calculation of mine locomotive, traction force, mass of locomotive. Transport cycle, movement resistance, braking force. Equation of movement of the composition. Stoppage. Calculation of pull force. |
