The cement industry is energy intensive，Big polluting industry，From an energy and environmental perspective，Dry rotary kilns tend to replace wet rotary kilns，The large dry cement production line introduced from abroad in recent ten years has put forward higher requirements for equipment lubrication，For large critical equipment is important for lubrication management，Such as large ball mill reducer，The lubrication of the open gear of rotary kiln is basically the choice of special lubricants。