The working principle of the purifier is based on the screening and separation. After flour is milled, it will contain particles of different particle sizes and densities, as well as impurities such as bran and bran chips. The purifier uses these differences to separate flour and impurities through vibration, air flow, etc., thereby purifying the flour.

A typical purifier usually includes major components such as a screen system, a vibration system, an air flow system, and a feeding and discharging system. The screen system is used to screen flour, the vibration system increases separation efficiency through vibration, and the air flow system blows away lighter impurities in the flour through air flow. The feeding and discharging systems ensure continuous production.

The main function of the purifier is to purify the milled flour, remove impurities, and improve the purity and quality of the flour. It is widely used in flour processing production lines, especially in wheat milling and flour manufacturing processes. Through the processing of the purifier, the flour can be made cleaner and purer, improving the nutritional value and taste quality of the flour, and meeting the needs of consumers.