Lead-zinc ore is a very versatile ore with high application value in many fields such as electrical, mechanical, metallurgical, chemical, light industry, military and medicine. The main task of lead-zinc ore beneficiation equipment is to separate the useful minerals from the veins in lead-zinc ore, improve the grade of useful components in the ore and reduce the content of harmful impurities.

Lead-zinc ore beneficiation equipment can be divided into oxide lead-zinc ore beneficiation equipment, sulfide lead-zinc ore beneficiation equipment, and polymetallic lead-zinc ore beneficiation equipment. According to the lead-zinc ore beneficiation process, it can be divided into crushing equipment, screening equipment, grinding equipment, classifying equipment, mixing equipment, flotation equipment, dewatering equipment, etc.

In terms of configuration, the lead-zinc beneficiation equipment mainly includes crushing and screening equipment such as jaw crusher, hydraulic cone crusher, circular vibrating screen, etc., grinding and classifying equipment such as ball mill and spiral classifier, etc., flotation equipment, etc. These are the main equipment constituting the lead-zinc beneficiation production line, and the whole production line is smoothly produced with reasonable equipment configuration, which is conducive to the effective sorting of lead-zinc ore.

Lead-zinc sulfide ore beneficiation process

Sulfide lead-zinc ore is mainly composed of galena and sphalerite, according to the nature of the ore, the flotation process can be used in the selection stage of the lead-zinc ore beneficiation line, which mainly includes priority flotation and mixed flotation. The priority flotation process mainly selects the lead from the lead-zinc ore first, followed by the zinc.

Lead-zinc oxide ore flotation process

Lead-zinc oxide ore is usually flotation by sulphide pyrite flotation. For the more difficult lead ore in oxidized lead-zinc ore, the flotation method can be used to add sodium sulfide in stages to ensure that the pH value of the pulp is kept at a normal level, and finally the concentrate is selected. The flotation method is used to select the zinc ore.