Separator is a kind of powder screening equipment widely used in cement,chemical,food and other industries.It mainly separates the powder particles in the mixture according to size through vibration screening or airflow screening to achieve powder grading and screening.Separators can be divided into three-separation separators,centrifugal separators,cyclone separators and other types.Each type has its unique working principle and application scenario.In the new dry cement production line,separators are widely used in coal mills,raw material unloading drying mills and cement mill systems,and play an important role in increasing mill output,reducing costs and improving product quality.