Thickener capable of treating high-concentration ore pulp

The invention discloses a thickener capable of treating high-concentration ore pulp. The thickener comprises a reaction cavity, a mounting mechanism, a transmission mechanism and a discharging mechanism, wherein the reaction cavity comprises a peripheral cavity, a fall pressure chamber, a primary treatment chamber, a secondary treatment chamber, a primary sedimentation cavity and a secondary sedimentation cavity; when the thickener works, ore pulp materials enter the primary treatment chamber along a feed pipe, solids with larger particle sizes are deposited in the primary treatment chamber and enter the primary sedimentation cavity through a screen, the sedimentation and flocculation of the materials are accelerated by the rotation of primary inclined main boards, and sedimentation flocculates enter the secondary sedimentation cavity through a screen at the bottom of the primary sedimentation cavity; and secondary inclined main boards in the secondary sedimentation cavity drive stirring shafts, stirring fram