Cu-Pb-Zn Production Line

Process Introduction

1. The beneficiation process is novel and the operating cost is lower

The copper-lead mixed concentrate regrinding process does not need to grind all the raw ore finely, which saves the grinding cost. At the same time, the concentrate regrinding further dissociates the copper and lead concentrates, and has a good drug removal effect, which is a copper-lead concentrate. separation creates favorable conditions.

2. Strengthen the flotation process to improve the grade of copper concentrate

Strictly implement the pharmaceutical system in the rough selection section, control the dosage of pharmaceuticals, and achieve "early harvest as soon as possible" to reduce multiple cycles and inaction losses; make full use of the secondary enrichment effect of foam, and through appropriate no water addition, The concentrate foam is washed to reduce impurities in the foam and achieve the purpose of strengthening flotation.

3. Copper-lead mixed flotation separation

In the flotation stage, the copper-lead mixed concentrate is preferentially separated. After regrinding, the lead concentrate and the copper concentrate are separated by flotation, and the two concentrates are dehydrated separately.

4. Zinc flotation separation

The tailings of copper-lead mixed flotation are subjected to zinc concentrate flotation after stirring and slurrying, and the obtained concentrate product is a zinc concentrate product after dehydration treatment.

Production instance

For example, a mine has a design scale of 600,000 tons per year, a daily processing capacity of 2,400 tons, and an annual working day of 250 days. The project is constructed in two phases. The first-phase project has a design scale of 300,000 tons per year, with a daily processing capacity of 1,200 tons. The second-phase project has a design scale of 300,000 tons per year. 300,000 tons/year with a daily processing capacity of 1,200 tons. The beneficiation method adopted in the project is flotation method, and the product plan is two products of lead-antimony concentrate and zinc concentrate. The main design indicators are: yield, lead-antimony concentrate 10.9%, zinc concentrate 2.58%; concentrate grade, lead-antimony concentrate Pb32.17%, Sb28.11%, zinc concentrate Zn59.9%; recovery rate, Lead and antimony concentrate Pb85.11%, Sb82.59%, zinc concentrate Zn88.82%.