Oil shale raw ore grading system and method

The invention discloses an oil shale raw ore grading system and method. The method comprises the following steps that crushed oil shale raw ore is separated to obtain medium-containing gangue and medium-containing concentrate in the presence of a separating medium; medium removal is conducted on the medium-containing concentrate, and the medium-containing concentrate is screened into lump concentrate and final concentrate with different particle sizes; the lump concentrate is dried, and the dried lump concentrate is conveyed to a concentrate storage; and the final concentrate is centrifugally dewatered, and the centrifugally dewatered final concentrate is conveyed to a stocking area. 本发明描述了一种油页岩原矿的选别系统及方法。其中，方法包括：在分选介质的存在下，对经破碎的油页岩原矿进行分离得到含介矸石与含介精矿；对含介精矿进行脱介并筛分成粒度不同的块精矿和末精矿；烘干块精矿，并将经烘干的块精矿输送至精矿仓；以及对末精矿进行离心脱水，并将经离心脱水后的末精矿输送至堆料场。