24-hour service hotline
0086 18733132385
Send us an email
[email protected]
Copper-molybdenum ore is an ore rich in valuable metals such as copper and molybdenum, mainly composed of minerals such as chalcopyrite and molybdenite. Chalcopyrite has a high copper content, is golden yellow, and has a metallic luster; molybdenite is silvery white and also has a metallic luster. The following is the full process of porphyry copper-molybdenum ore dressing from grinding to concentrate:
The grinding process is a key step in the beneficiation process, which aims to improve the grinding fineness and output of the ore while reducing energy consumption and production costs. The specific steps are as follows:
Ore pretreatment: Ensure that the mineral material to be processed meets the feed requirements of the high-pressure roller mill.
High-pressure roller mill: The mineral material is crushed by the high-pressure roller mill. During the high-pressure roller mill process, the material is twisted and broken by the high-speed rotation and working pressure of the double rollers, forming a variety of forms such as flakes, granules, and powders. Most of the material can be crushed into finely crushed materials with a particle size of less than 10mm.
Screening and classification: According to the specific process requirements, the crushed materials are screened by a screening machine to classify materials of different particle sizes. Finely crushed materials can directly enter the subsequent ball mill circuit, or they can be included in the ball mill circuit after screening.
The flotation process uses the action of flotation agents to float useful ores and settle waste rocks, thereby achieving ore separation and enrichment. The specific steps are as follows:
Agent ratio: According to the ore characteristics and flotation targets, determine the appropriate reagent combination and concentration to improve the flotation effect.
Flotation equipment selection: Select suitable flotation equipment and adjust equipment parameters according to ore characteristics and flotation requirements, such as the strength of mechanical stirring, bubble size, etc., to achieve a good separation effect.
Flotation operation: The raw ore is divided into four systems and then stirred in the stirring tank and enters the copper, molybdenum and other floatable operations, including copper-molybdenum separation, copper flotation and copper-sulfur separation. Through grinding treatment, the raw ore is ground to -0.074mm, accounting for 65%, and enters the floatable operation of copper, molybdenum, etc. After one roughing, one scavenging and three concentrating, a copper-molybdenum mixed concentrate is obtained.
Copper concentrate treatment: After the copper concentrates of different systems are combined, they flow to the copper concentrate thickener, and after filter pressing and dehydration treatment, they are packaged and stored in the copper concentrate bin.
Molybdenum concentrate treatment: After the molybdenum concentrates of different systems are combined, they flow to the molybdenum buffer stirring tank, and after filter pressing and drying and dehydration, they are packaged and stored in the molybdenum concentrate bin.
Filtrate treatment: The filtrate generated during the treatment process is discharged into the tailings pond after three-level sedimentation.
By optimizing the grinding and flotation processes, the beneficiation of porphyry copper-molybdenum ore not only improves the efficiency and recovery rate of ore processing, but also significantly reduces energy consumption and production costs. At the same time, the use of advanced environmental protection technologies, such as three-level sedimentation and tailings pond management, ensures the environmental friendliness of the beneficiation process.
In summary, the entire process of porphyry copper-molybdenum ore beneficiation covers multiple links from grinding to concentrate. By optimizing each process step, efficient and environmentally friendly ore processing is achieved, providing strong support for the sustainable development of copper-molybdenum mines.
© 2021 Yantai KZ Mining Processing Technology & Equipment Inc.
