Nowadays , the main iron ore in the domestic ore selective industry are magnetic iron ore and hematite, and the fine magnetic iron ore takes 3/4 of the fine iron ore in our country. The iron resources in our country are very rich. Because of the fine granularity of our chosen magnetic iron ore, the bad influence of magnetic agglomeration becomes more obvious, which makes it harder to improve the fine ore’s degree depending on the simplex ore beneficiation. Combining the magnetic flotation and anion reverse flotation can achieve the mutual complement in ore separating line, which is beneficial for the improvement of the degree of magnetic iron ore.
Flotation machine is one of the most important selection of fine mine devices in mineral processing. Using centrifugal field, etc, the separation of new type of air-breathing centrifugal floatation separator was the most effective physics means in realizing fine-grained mineral separation. It was mainly used in mining, coal industry, etc. The most significant characteristic is: pulp flows through the nozzle into the feeding tube. The high-speed pulp enters air-bubble generator, so as to form negative pressure in mixing chamber and inhale air. Fully mixed with pulp, air enters into flotation tank in tangent line to achieve sorting purpose by used centrifugal field, etc.
Aiming at new type of air-breathing centrifugal floatation separator, and using numerical simulation method, it analysis the key components of flotation machine, the different structure of the flotation cell. Flotation cell and the whole machine model combined with industrial test and determine the optimal structure flotation machine. This article uses modeling software Gambit to establish the flotation separator physical model.
Flotation process is one of the most effective processes of China’s ore concentrator to raise iron content and reduce silicon. Cationic reverse flotation process can get the fine ore after a course separation and a fine separation. The reverse flotation foam was concentrated through magnetic separation and grinding.
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