Flotation machine is the important ore dressing equipment, which is driven by the rotation of motor, V-belt and the impeller, and the centrifugal force has contributed to the formation of negative pressure. On one hand, it absorbs sufficient amount of air to mix with the slurry, on the other hand, it stir the pulp to mix with the drug, while thinning foam to make the mineral adhere to the foam, and then float to the pulp surface and finally forms the mineralized bubbles. Actually, there are a lot of applications of flotation machine, and Fote experts have found a particular advantage of flotation machine.We have known that the flotation machine is a mineral dressing method, which is on the basis of water with different wet abilities. The property that whether the mineral can be floated easily or difficultly is called the floatability. It is mainly used as mining flotation machine, which is mainly suitable for separating copper, zinc, lead, not take gold and other ferrous and non ferrous metals. How to improve the concentrate grade of flotation machine? In order to improve the flotation grade of concentrate, we must first understand what factors affect the grade of concentrate during the ore dressing process. Generally, too much mud will influence the grade of concentrate, and the solutions are as follows:(1) Increase the ore washing process before crushing, wash away the mud.(2) Use the Hydro cyclone or classification box to select the raw ore in the molybdenum ore dressing equipment, so that the materials with different particle sizes and gravity will be separated respectively, namely the separation of mud and sand.(3) Choose the suitable slime inhibitor such as water glass, six partial sodium phosphate and carboxymethy cellulose to suppress the slime.(4) Only use the 2# oil and oxidized wax soap to conduct the mud removal flotation, and then use other agents to carry out mineral separation.At the present, Fote Heavy Machinery has set up three state level...