The application discloses a kind of lead-
zinc ore
beneficiation method and
system in polymetallic ore, it is related to the technical field of
beneficiation, including the following steps: S1, crushing;S2,
grinding;S3, lead flotation: the ore pulp after
grinding is sent to lead flotation tank, flotation
reagent includes 25# black
medicine, butyl
xanthate,
foaming agent and
zinc inhibitor, using 1 rough 2 sweep 3 precise flotation, and output lead concentrate and lead
tailings;S4,
zinc flotation: lead
tailings are sent to zinc flotation tank, and flotation
reagent includes
copper sulfate, butyl
xanthate and
foaming agent, using 1 rough 2 sweep 3 precise flotation, and output zinc concentrate and zinc
tailings;S5, tailings,
wastewater treatment: the
fluorite tailings produced by flotation are subjected to
solid-liquid separation, and the
liquid phase is sent to a
sewage treatment
station for treatment, and the
treated water is recycled to the
beneficiation section;
Solid phase is sent to mine for filling treatment or used as
building material, solve the problem that there is no efficient,
environmentally friendly, economic lead-zinc ore comprehensive
recovery beneficiation process suitable for the ore properties in Sichuan Mabian area in the prior art.