System and method for treating associated weak magnetite

The invention relates to the technical field of weak magnetite recovery in the technical field of sintering and mineral separation, and discloses a system and method for treating associated weak magnetite, and the system comprises an external heating rotary kiln, a bracket and a slurry storage tank. According to the beneficiation method for recycling the associated weak magnetite, on the basis of an original traditional beneficiation process, finely-crushed ores directly enter a treatment system of the associated weak magnetite instead of directly entering a grinding and selecting procedure, and the rotating speed of a rotary kiln, the temperature of a hearth, the filling rate and the heating time are controlled; then the ore enters a slurry storage tank from a discharge port in the tail of the rotary kiln, and the temperature is reduced to normal temperature; and finally, pumping into an ore grinding procedure of an original traditional mineral separation process through a slurry pump, and carrying out ore g