What is the significance of improving the grade of raw ore and concentrate? What is the significance of reducing the grade of tailings?

Ore grade level representative of how much metal content, high-grade ore beneficiation plant processing low-grade ore and the effect is not the same. When processing ore grades, it is necessary to obtain more concentrates under the same conditions than low-grade ores. At the same time, it can reduce the grinding cost and steel ball consumption. Therefore, the level of the ore grade is a factor affecting the concentrate production. At present, some concentrating plants have begun to take some measures to improve the grade of raw ore, such as the installation of dry magnetic pulleys in the crushing system.

Efforts to improve the quality of concentrates are even more important. The quality of concentrates can be increased, which can increase the price of concentrates and increase profits. What is important is that from a global perspective, it has a great effect on energy conservation. Taking iron concentrate as an example, the concentrate grade increased by 1%, the pig iron production of the blast furnace increased by 2.5%, and the coke ratio decreased by 1.5%. The effect was obvious. The same grade of non-ferrous metal concentrates is also improved, which has great benefits for smelting operations, both in terms of energy consumption. Therefore, improving the grade of concentrate is one of the most important indicators of mineral processing.

The grade of the tailings can be seen in the management level of the enterprise; it can be seen whether the process is reasonable; the change in the nature of the ore can be seen. Efforts to reduce tailings grades and reduce metal loss have a certain relationship with increasing production, especially for non-ferrous metals and rare metals.