Lead zinc ore beneficiation general to go through the integration of rich ore to the smelting of lead, zinc metal products. The ore technology processing and smelting test is an important part of geological exploration work and one of the important basis for evaluating whether the deposit can be used for commodity ore development. Therefore, the ore optional test must be carried out during the geological exploration process. In the detailed investigation or preliminary survey stage, the laboratory preliminary optional test should be generally carried out, and detailed optional tests should be carried out in the preliminary survey or detailed survey stage. When large or medium-sized or super-large deposits with large ore content is complex and have great comprehensive utilization value, in addition to detailed optional tests, laboratory-scale expansion tests are also required when necessary. For certain ore types, laboratory smelting tests are also required when the ore dressing method fails to obtain qualified concentrate products or if monomer separation is not possible.
Before conducting the ore optional test, the ore material composition should be studied first, the ore type should be classified, the state of occurrence of the element should be ascertained, the mineral type, the ore structure and the grain size characteristics of the ore should be identified, and a reasonable process flow should be provided for the ore dressing test. in accordance with.
The lead-zinc ore industrial type is divided into sulfide ore (lead or zinc oxidation rate <10%), oxidized ore (lead or zinc oxidation rate >30%), mixed ore according to the ore oxidation degree. (Lead or zinc oxidation rate 10% to 30%). Press different ore useful components, can be divided into lead ore, zinc ores, zinc ore, copper, lead and zinc ores, sulfur, lead and zinc ores, copper, lead and zinc ores sulfur, tin-lead ore, lead ore, antimony, zinc, copper ore and the like . According to different ore structure, it can be divided into disseminated ore, dense block ore, breccia ore, strip ore, fine vein disseminated ore.
When the metallurgical department needs to be sorted according to the ore type, mining, sorting (smelting), and can be circled on the geological section and connected to the adjacent sections, the distribution range should be circled and the reserves should be calculated separately.
The beneficiation test of lead-zinc ore, depending on the type of ore, selects different beneficiation methods. Sulfide ore is usually floated. The oxidized ore is flotation by flotation or re-election with flotation, or after flotation by sulphide roasting, or after re-election, treatment with sulphuric acid and then flotation. For lead-zinc ore containing polymetallics, a general beneficiation method such as magnetic-floating, heavy-floating, heavy-magnetic-floating is generally used.
Lead and zinc beneficiation flotation process flow chart
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