SPIRAL SEPARATOR (VERSIONS) Russian patent published in 2009 - IPC B03B5/52 

FIELD: mining.

SUBSTANCE: this invention refers to the enrichment of the mineral resources in the spiral separators and in particular, for the improvement of the efficiency of the extraction of the fine gold during enrichment of the gold-containing ore and the sand in mining industry. Spiral separator includes spiral operation body made in the cross-section in the form of semi-channel with the external board and connected to the central support column, mechanism for original power supply receipt, mechanism for delivery of the washwater, cutoff plates of the concentrate. According to one version of the spiral separator, the mechanism for the washwater delivery is made in the form of the channel formed by the surface of the support column, semi-channel's bottom and limiter installed on the bottom whereof. The limiter is made with the variable altitude decreasing along its longitudinal axis from up to bottom in order to provide uniform supply of the washwater. According to the other version of the spiral separator, spiral semi-channel is connected to the support column surface by the directing sleeve made with the longitudinal groove for the washwater and longitudinal slot on the side face to locate the bottom of the semi-channel. On the upper surface there are dents of the variable depth. The groove is made with variable depth decreasing along its longitudinal axis from up to bottom. In the limiter there are transverse through holes.

EFFECT: invention improves the efficiency of the extraction of the fine gold and improves the quality of the schlich gold concentrate.

5 cl, 3 dwg