阐述了永磁磁力脱水槽自动控制系统的工作原理及其在歪头山铁矿的应用。结果表明:脱水槽加装自动控制系统后,可提高选别指标,降低工人劳动强度,取得了显著的经济效益。 关键词 磁力脱水槽 密度传感器 自动控制系统 Abstract The working principles of the automatic control system for permanent magnetic dewatering cells and its application at Waitoushan Iron Mine are described. The results show that the installation of the automatic control system on the dewatering cell can improve performance ,reduce the worker’s labour intensity and help achieve very remarkable e2 conomical benefit . Keywords Magnetic dewatering cell ,Density transducer ,Automatic control system