Precise adding control structure for lime dosage in lead-zinc sulfide ore flotation operation

The utility model discloses a lead-zinc sulfide ore flotation operation lime dosage accurate adding control structure which comprises a lime supply system and a middle storage device, the middle storage device is provided with a storage barrel, the storage barrel is provided with an external pipe and an overflow pipe, and a rubber pipe valve is installed on the external pipe. The middle storage device is respectively connected with the zinc raw ore stirring barrel, the zinc-sulfur separation stirring barrel and the flotation machine through rubber pipe valves; the lime supply system is in butt joint with the storage barrel through a feeding pipe, and the overflow pipe is connected with a backflow pipe and connected back to the lime supply system through the backflow pipe. According to the utility model, the intermediate storage device for the lime is additionally arranged, so that when the demanded quantity of the lime in the flotation process is increased, the supply can be increased through the electric rub