The Lead and Zinc ore dressing, according to the different types of ore, then choose different ore dressing methods, also need different lead-zinc ore beneficiation equipment. Sulfide ores are usually flotation method.Oxidized ore is beneficiated by flotation or gravity separation combined with flotation, or flotation after curing roasting, or flotation after gravity separation with sulfuric acid treatment.For lead and zinc ore containing polymetallic, magnetic – flotation, gravity-flotation, gravity-magnetic – flotation and other combined beneficiation methods are generally used.

Lead and Zinc ore dressing equipment

Lead and Zinc ore dressing equipment

Lead and Zinc ore dressing flow chart

Lead and Zinc ore dressing flow chart

The flotation process of zinc oxide ore as follows:

flotation process of zinc oxide ore

flotation process of zinc oxide ore

A. Grinding argillaceous zinc oxide ore to make the particle size of -0.1mm account for 50% ~ 80%;
B. Flotation of lead oxide by classifying and overflowing the pulp;
C. Put the lead flotation tailings into the agitation tank, control the pulp concentration at 25 ~ 35%, add flotation agent, control the pH value of the pulp 9-11, and stir for 6-15min;
D, the slurry into the flotation tank to grade 1 to grade 3 fine grained roughing, rougher concentrate per level 1 to 3 times, into the next level of middlings was roughing , mud is less than 16% of primary 6-8 min pulp roughing, rougher concentrate on 1-3 times and each time 1-2 min selections and concentrate products, 1 time and realized the roughing of middlings was selected into the desliming; The pulp containing 17-21% mud was roughed for two levels and 5-7 min for each level, and the concentrate was cleaned for 1-3 times and 1-2min for each level. The middles of the second level and the middles of the second level were deslimed. The pulp containing 22-26% mud was roughed for 3-stage and 4-6min for each stage, and the roughed concentrate was roughed for 1-3 times and 1-2min for each stage to get concentrate products.  The middles of the third stage and the middles of the third stage were roughed and deslimed.
E, sending D steps fine particle flotation middling mineral to hydrocyclone group under Φ 150 mm or high frequency fine screen for desliming, removing 0.074 mm below the thin mud, then send to agitation tank, control pulp density of 25-35%, complement flotation agent, the control pulp pH 9-11, mixing 5-12 min, into flotation cell.

ZJH Minerals is one of the earliest mineral beneficiation equipment supplier in China, with a beneficiation history of several decades.Can provide customers with: engineering consultation, mineral processing test, product design, equipment manufacturing, installation and commissioning, post-maintenance and other related EPC contractor services.Our customer cases are beneficiation plant in china, customers want to know about the relevant case, can be arranged according to the actual situation, we have a variety of mineral beneficiation equipment in our factory, users can come to our factory for actual visit and investigation.