INCLINED STRAKE Russian patent published in 2014 - IPC B03B5/70 

FIELD: mining.

SUBSTANCE: inclined strake comprises loading and unloading assemblies. Bottom body consists of two surfaces inclined to each other to make a flute narrowing from material loading side to unloading side. It is equipped with rectangular cross-section crimps. Said crimps are laid in symmetry at angles on two surfaces. This strake is equipped with cut-off device arranged some 4-8 mm above said crimps composed by plates. The latter are equally spaced apart and located at 40-50 degrees to strake axis and inclined at 60-80 degrees towards unloading assembly so that the plate inner boundary line converges from loading assembly to unloading assembly while plate end thrusts against the board lateral edge. Plate top edge is located above lateral board.

EFFECT: efficient separation of material, higher yield of heavy fractions.

4 dwg