STEEPLY INCLINED STREAM-GOLD CONCENTRATOR Russian patent published in 2012 - IPC B03B5/62 

FIELD: process engineering.

SUBSTANCE: invention relates to classification and concentration of minerals. It may be used in development of stream-gold. Proposed concentrator comprises two-section housing. First section is inclined to lengthwise vertical axis and provided with pack of inclined corrugated plates arranged in parallel. It incorporates water delivery branch pipes, those to feed initial material and concentrate collection chambers. Second section serves to trap fine heavy particles. First section features the shape of descending triangle while inclined plates form clearance with concentrator housing to make inclination lengthwise and crosswise angle regulation. Section bottom above concentrate collection chambers is furnished with alternating crosswise branch pipes to feed additional water and inclined plates arranged to provide for adjustable clearance between plates bottom edges and water delivery branch pipe. Outlet of the latter is directed along surfaces of the plates. Top section of the plate is secured to top section of the next branch pipe and has minor continuation and crosswise bent baffle. Second section begins from apex of first section sharp end and represents two-section screw-like descending flute.

EFFECT: better sizing to density and higher extraction of heavy minerals, higher efficiency.

1 dwg