The equipment and process for beneficiation of lead-zinc ore may vary depending on the properties and objectives of the ore. The following are some possible equipment and processes that may be used:
Crushing equipment: including jaw crushers, cone crushers, impact crushers, etc;
Grinding equipment: including ball mills, rectangular machines, AG/SAG mills, etc;
Sorting equipment: including flotation machines, gravity separators, centrifuges, etc;
Filtering equipment: including filter presses, vacuum filters, etc;
Drying equipment: including rotary furnaces, cyclones, etc.
Coarse selection: The ore is refined to a certain particle size through steps such as crushing and grinding for further processing.
Flotation: Using a flotation machine to separate lead zinc minerals from impurities in the ore, commonly used reagents include collectors, foaming agents, regulators, etc.
Gravity separation: Use a gravity separation machine to separate the flotation lead zinc concentrate into lead concentrate and zinc concentrate, usually using reagents such as sodium cyanide and copper oxide.
Concentration: By using equipment such as pressure filtration or vacuum filtration, the moisture in the concentrate is removed to obtain dry lead zinc concentrate.
Refining: Further processing of lead zinc concentrate, typically using methods such as oxidation roasting, wet smelting, electrolysis, etc. to improve the purity and quality of lead zinc.
The above is a basic introduction to the equipment and process flow of lead-zinc ore beneficiation. In practical applications, special treatments may be carried out based on the different properties of the ore and beneficiation objectives.
