R＆D and application of the HMDA-636×117 magnetic separator overflow regulating device

The trouble with the operation of the HMDA-636×117 magnetic separator of Xinhe Washery is that the regulation of its overflow fails to be made in time and in an accurate manner. Through structural analysis, it is decided to fit a wafer butterfly valve on the pipe at the bottom of the tailings tank. The valve has a handle bar through which the tailings flow can be regulated for controlling the height of the separator's overflow. Practice shows it is a simple and easy-to-separate control means through which it is possible to realize not only dynamic regulation of overflow with high accuracy, but also control of overflow at an most appropriate height. The use of the overflow control device has brought about substantial economic benefit for the washery due to reduction of quantity of medium in magnetic tailings, less medium consumption per ton of coal treated, and cutdown of costs of materials.