Investigation of the hydraulic feeder working process

Abstract

At hydraulic transportation of fine-grained materials for their delivery to the surface from depths exceeding 100 m, there is a necessity of feeding these materials by slurry pumps into the mine drainage pipeline through a special feeder. Such a feeder is a hollow cylinder, included in the network of the main drainage header. Special gate valves allow either to disconnect the feeder from the header at the moment of loading it with material, or to direct the pressure jet created by the main drainage pumps into the feeder cylinder at the moment of material washing out. In this way, the eroded material in the form of a slurry of low concentration (H : L up to 1 : 20) is discharged to the surface by the main dewatering header.