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Copper ore concentration production line

Copper ore concentration production line

Place of Origin : china
Brand Name : Shanghai Zhongbo Machinery
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The copper ore concentration production line equipment and production processes are as follows:
Mined ore first by jaw crusher preliminary crushing, broken to a reasonable degree of fineness through the hoist, feeding machine into the ball mill for ore crushing, grinding.
After the ball mill grinding, the ore fines into the next process: classification. Spiral classifier with the principles that different proportion of solid particles, different precipitation speed in the liquid, wash, grade the ore mixture. When pass through magnetic separator, washed and graded mineral mixture, due to the different susceptibility of variety of minerals, by the magnetic force and mechanical force , are separated from the magnetic material. Separated minerals by magnetic separator are sent into the flotation machine, adding different drugs depending on the mineral characteristics, making the expected material separated from other mineral particles. Minerals to be separated, because they contain large amounts of water, subject to the initial enrichment of the concentrator, and then the dryer to dry minerals. Copper concentrate grade can be up to 45%.

1. disseminated copper ore flotation

Generally use a relatively simple process, after a period of grinding fineness of -200 mesh acconting for 50% to 70%, then a rougher flotation, 2 or 3 times cleaner flotation, 1 or 2 times scavenging. If copper minerals disseminated particle size is relatively small, we can consider the stage grinding and separation processes. Bornite ore dressing plant mostly adopt the crude concentrate regrinding - a cleaner flotation process, and its essence is mixed - flotation process. First by a period of rough grinding, rougher flotation, scavenging, and then crude concentrate regrinding and then selected to get higher-grade copper concentrate and sulphur concentrate. Coarse pulverized -200 mesh account for 45% to 50%, then fine pulverized -200 mesh about 90% to 95%.

2. dense compact copper ore flotation

Due to the dense symbiotic of chalcopyrite and pyrite, pyrite is often activated by secondary copper. As pyrite has higher content, it is difficult to inhibit , the separation is difficult. The sorting process require to get both copper concentrate and sulphur concentrate. Usually copper tailings is sulfur concentrate after copper beneficiation. If the ore gangue content is more than 20% to 25%, it still needs re-sorting to get the sulfur concentrate. Dealing with dense copper ore, often use two period of grinding or stage grinding, grinding fineness require smaller. The amount of reagent is larger, of which xanthate dosage is above 100g / t ore , lime more than 8 to 10kg / t ore.


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Copper ore concentration production machine

      
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