Dense medium separator

专利名称：Dense medium separator发明人：Paul A. Olivier申请号：US11999460申请日：20071204

公开号：US20080135461A1公开日：20080612

专利附图：

摘要：The present invention is directed to a dense medium separator and methodsfor operating the separator and separating solids in a dense medium. A separator ispresented with distribution and extraction zones at opposite ends. Solids enter theseparator and medium is injected in the direction of the extraction zone at the

distribution zone. The injected medium forms a float current that moves the lowerdensity solids to the extraction zone which then overflows a weir and is harvested. Afloats extraction device separates the lower density solids from the medium andrecirculates the medium back into the injection stream. Between the distribution andextraction zones is a separation zone where higher density solids fall out of the floatcurrent and into/onto a sinks mover at the bottom of the separation zone. The sinksmover moves the higher density solids in a direction opposite to that of the flow

direction to a recovery zone where they are harvested. A sinks recovery device separatesthe high density solids from the medium and recirculates the medium back into theinjection stream. The sinks mover also creates counter-current in the medium which isalso opposite the direction of the float current. Higher separation accuracies are achievedby establishing a vertical interval of unperturbed medium in the separation zone of thebath between the float current of the upper level and the counter-current and sinksmover in the lower level. There, the predominant force acting on the solids is theseparation density, i.e., the difference between the density of a solid and the medium.Lower density solids (floats) will separate, unimpeded, upward into the float currentwhere they are extracted at the extraction zone, while higher density solids (sinks)separate downward into the counter-current and on to the sinks mover, where they arerecovered in the recovery zone.

申请人：Paul A. Olivier

地址：Dalat City VN

国籍：VN

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