The flotation process of a single copper sulfide ore is generally relatively simple and differs only in the structure of grinding-flotation from the grinding-flotation-coarse concentrate regrinding process of complex copper sulfide ore. The factors affecting the recovery rate of copper ore beneficiation process mainly include mineral composition and structure, percentage of various minerals, mineral particle size, number of useful and harmful components and their occurrence state, oxidation degree of ore, ore sorting beneficiation technology, and equipment level, etc. The following introduces several effective ways to improve the recovery rate of copper ore beneficiation and dressing.
1. Improve beneficiation technology
With the improvement and development of ore mining and beneficiation technology, coarse concentrate, mixed concentrate and medium ore regrind technology can be used in the concentrator. The selection of effective ore processing and beneficiation reagents stabilizes the copper concentrate grade at more than 20% while maintaining the copper recovery rate at a relatively high level.
2. Comprehensive recovery of valuable minerals
With the development of mineral processing technology, great attention has been paid to the comprehensive recovery of valuable components associated with copper ores, such as gold, silver, iron, sulfur, molybdenum, and other elements, especially the recovery rate of gold and silver. The recovery of these valuable minerals by the concentrator can improve the recovery rate of copper ore and at the same time increase the economic benefits of the concentrator.
3. Adopt flotation machine
The flotation machine is the main separation equipment of the copper ore concentrator. The grade and recovery of copper concentrate can be improved by using a flotation machine.
4. Large scale equipment
Large scale equipment is one of the main measures to improve the technical and economic indexes of copper ore concentrators. Concentrators should choose large-scale equipment suitable for their own construction scale as much as possible, which is conducive to automatic control of production, increase the recovery rate of copper ore, reduce energy consumption and costs, and improve the economic benefits of the concentrator.
5. Improve the automation level of beneficiation operation
Copper ore concentrator can adopt automatic measures and equipment, such as the chain control of the crushing system, automatic control of constant feeding ratio and water addition of grinding system, control of the flotation level, pH control of the pulp, fluorescence online analysis, and computer monitoring, intelligent computerized drug delivery control, so as to improve the ore dressing recovery rate.
Nile Machinery is a professional mineral ore dressing or beneficiation equipment manufacturer. Through continuous research, analysis, and optimization of beneficiation process parameters, the recovery rate of copper ore processing has been greatly improved.
