Coal slime water deep clarification system, and treatment method thereof

The invention discloses a coal slime water deep clarification system, and a treatment method thereof. The coal slime water deep clarification system comprises a thickener; a thickener internal concentration on-line monitoring system which comprises a calibration part and a thickener internal concentration on-line monitoring part; a coal slime water automatic reagent feeding system which comprises successively connected a coal slime water feeding detection unit, a monitoring operation unit, and a reagent feeding unit; a reagent dispersing system which comprises a double-impeller heating high-efficiency preparation barrel communicated with the reagent feeding unit, and a reagent feeding buffer barrel; the bottom of the reagent feeding buffer barrel is provided with two feed outlets which are used for communicating a constant amount reagent feeding channel and a variable amount reagent feeding channel; reagents in the constant amount reagent feeding channel and the variable amount reagent feeding channel are both delivered into a coal slime water feed inlet pipe; the thickener internal concentration on-line monitoring system, the coal slime water automatic reagent feeding system, and the reagent dispersing system are all connected with a control system via electric connection. The coal slime water deep clarification system is capable of realizing real-time monitoring and correction, and saving reagents, and is more perfect.