Kiln drive application considerations

The paper presents available drive train configurations and alternative methods for driving a cement plant kiln. Driving equipment options using hydraulic motors, DC drives or variable frequency drives employing both current and voltage source technologies are evaluated in terms of performance, reliability, maintenance, operating efficiency and total cost of ownership. Drive and motor performance requirements are reviewed in relation to torque/current speed characteristics of the kiln load. Torque pulsations and induced vibrations and their effect on the mechanical drive train components are reviewed.