System for preventing flotation reagent from being decomposed in titanium concentrate drying process

The utility model discloses a system for preventing a flotation reagent from being decomposed in a titanium concentrate drying process, which comprises a rotary drum, a flotation reagent storage tank and a flotation reagent storage tank, the flue gas pipeline assembly is at least partially arranged in the rotary drum and is configured to convey flue gas for indirectly drying the flotation titanium concentrate; the chimney is communicated with the outlet of the flue gas pipeline assembly; an inlet of the furnace gas pipeline assembly is connected with a furnace gas outlet of the rotary drum; the hot air furnace is provided with a gas pipeline, a combustion-supporting air pipeline and a hot air outlet, and the combustion-supporting air pipeline is connected with the outlet of the furnace gas pipeline assembly; an inlet of the air mixing chamber is connected with the hot air outlet, and an outlet of the air mixing chamber is connected with an inlet of the flue gas pipeline assembly. The indirect drying device ca