Raw material grinding vertical cement mill is an important part of the cement raw material preparation process. After the cement raw materials are crushed, they are sent to the raw mill for further crushing until they reach a certain fineness, and then enter the clinker calcination process. From the production experience of many cement plants, the selection of cement equipment, especially the raw material plant, will directly affect the project investment, production schedule, and economic benefits. At present, in order to adapt to the process characteristics of the new dry process cement production line and make full use of the tail kiln preheating decomposition system of the waste heat of the exhaust gas, we usually adopt the grinding system to combine drying and crushing into a single one.
Working principle: The material falls to the center of the grinding disc through the discharge pipe. The grinding disc rotating at a constant speed uses the centrifugal force to evenly disperse and flatten the raw materials outward to form a material bed of a certain thickness. At the same time, the material is crushed by multiple grinding rollers on the grinding disc. Under the continuous drive of centrifugal force, the material continues to move toward the outer edge of the grinding disc. When the material leaves the grinding disc, it encounters the hot gas entering the mill through the air ring and rises with it. It enters the powder concentrator through the middle shell of the mill. In this process, the material and the hot gas undergo sufficient heat exchange, and the moisture is quickly evaporated. The powder concentrator controls the particle size of the finished product at the roller mill outlet. Particles larger than the specified size are separated and fall back to the grinding disc. Materials that meet the fineness requirements enter the finished product bin through the powder concentrator.
Baichy Machinery is a factory supplier of mining machinery, mainly focusing on stone crushers, powder grinding mills, and mineral beneficiation plants. If you need to know more about raw mill work and search for it, feel free to ask and Baichy always welcomes you.
