Coal Mine
Mine belt conveyor solutionsI.mine belt conveyor DescriptionAlso known as belt conveyor belt conveyor is a continuous transport machinery, but also a general machinery. Belt conveyor with a motor, gear box, belt, rack, driving drum, bend pulley, roller bearing, parts return idlers, tensioning devices and other components.Usually more than one belt conveyor belt motor drag one of skill balance multiple motors have higher requirements.II. the control requirements:1, excellent low frequency torque characteristics, can achieve normal start overloading;2, excellent master-slave control logic enables multiple motors power balance;3, wide speed range, from soft and good performance;4, good overload capacity and environmental adaptability, high reliability;5, wide input voltage range, automatic voltage adjustment function. III. the program design and description:Electrical transmission start condition:The whole drag conveyor consists of four parallel sets of induction motors, motor through reducer connection with the conveyor drive roller, used between the motor and reducer, reducer and the driving drum grid coupling is connected. The motor uses a coaxial motor, namely two motors while controlling a drum;The new system consists of four sets of Corey C500-250G-4T inverter control the four asynchronous motors, which is set to host one inverter, and the remaining three from the inverter to the machine through the main drive from the control function, so all slave synchronization automatically follow the host dynamic operation, in order to achieve a balance of power four motors;Operating frequency control system only needs to operate the host, the host comes directly through the keyboard operates the host, it can also work through the upper platform of the frequency control system for remote control. IV. the program benefits:1, by a motor driven belt conveyor slow start slow start, not to cause harm to the belt, the real motor soft start and soft start combined belt conveyor;2, stable equipment start-up characteristics, greatly reducing the amount of maintenance and inspection equipment;3, excellent master-slave control, to achieve a balance of power four motors, extending motor life;4, according to the actual production of the motor speed, energy-saving effect is obvious;5, ± 15% of the width of the grid designed to meet the power requirements of harsh environments;