Flotation method for lead-zinc oxide ore

Abstract

The invention relates to a flotation method for lead-zinc oxide ore. Column-type flotation equipment (a flotation column) is applied to the floatation technical process of the lead-zinc oxide ore, and the following advantages of the column-type flotation equipment are fully utilized: the sorting effect on fine minerals is good; multiple work of the conventional flotation machine can be finished by one-stop operation; the column-type flotation equipment is applied to high foam output operation and the like; and one-stop flotation work can replace coarse scavenging work or coarse concentration work of the flotation machine; or the one-stop column flotation work can replace multiple work of middling ore recleaning. Therefore, the flotation method for the lead-zinc oxide ore can greatly shorten the flow of production technology, better recover fine valuable minerals, and solve the problem of unsmooth technical process due to high foam output, has stable production process, and can improve and stabilize the product quality. In the practical application, the flotation recovery of the zinc oxide is improved by over 5 percent, and the zinc oxide concentrate grade is improved by over 2 percent.

Description

technical field [0001] The invention relates to a process method for beneficiation of lead-zinc oxide ore in the field of mineral processing, and relates to equipment and a process flow in the flotation recovery process of lead-zinc oxide ore. Background technique [0002] my country has abundant reserves of lead and zinc resources, ranking second in the world. However, at present, only high-grade oxide ores and a small amount of sulfide ores are used in my country's lead-zinc mines, and a large number of low-grade lead-zinc oxide ores cannot be utilized. Taking the largest lead-zinc deposit in my country, the Lanping lead-zinc oxide deposit in Yunnan as an example, at present, lead-zinc sulfide ore and a small amount of lead-zinc oxide ore with a zinc grade higher than 15% are mainly used. It is stored near the mine, causing a lot of waste of resources. Therefore, improving the separation technology of this type of lead-zinc oxide ore is the most important way to ensure th...

AI Technical Summary

Problems solved by technology

[0006] 2. The flotation time of lead-zinc oxide ore is long, the process flow is long, and the process structure is complicated;

[0007] 3. Since the process equipment used is conventional flotation machine equipment, it cannot solve the problem of flotation recovery of fine-grained minerals, and lead-zinc oxide ore produces a large amount of fine-grained minerals during the disintegration process;

[0008] 4. Most of the flotation collectors used in oxidized ore flotation have strong foaming performance. The amount of foam in the flotation process is large, the flotation process is long, and the content of slime is high, which makes it difficult in the actual production process. Ensure smooth flow and process stability

[0011] Therefore, through years of flotation technology research and production practice of lead-zinc oxide ore, it is difficult to realize the real industrial production of lead-zinc oxide ore only from the two aspects of flotation technology and reagent system

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