Ball mill is an important grinding in mineral processing production line equipment, the critical value of ball mill, here mainly refers to the rotational speed of ball mill barrel threshold for the effects of the production efficiency. Critical speed is one of the main data measure grinding machine working condition. The rotational speed of ball…

Iron ore refers to the mineral aggregates containing iron or iron compounds and can be used in the economic field, the steel industry is an important raw material. Although the distribution of iron ore is more extensive, but poor iron ore as well as complex multi-element symbiosis more, making China’s iron ore resources are not…