Brief Introduction

A jet mill is a device that uses high-velocity airflow to achieve ultra-fine dry grinding of materials. It usually consists of grinding nozzles, a classifying rotor, a screw feeder, and other components. During operation, materials enter the grinding chamber through the screw feeder, while compressed air is injected into the grinding chamber at high speed via supersonic nozzles. The materials are accelerated in the supersonic jet stream and repeatedly impact and collide at the intersection of the nozzles to achieve the grinding effect. After grinding, the materials are carried by the ascending airflow into the classifying chamber. Under the action of the high-speed rotating classifying rotor, fine powders are separated, while coarse powders return to the grinding chamber for further grinding.

A jet mill is a device that uses high-velocity airflow as the power source to grind materials through mutual collision, friction, and shearing between materials. It is particularly suitable for ultra-fine grinding and dispersing materials that are difficult to grind mechanically.

Features

Low-temperature grinding: Since materials are ground under gas expansion, the temperature of the grinding chamber can be maintained at room temperature, making it suitable for grinding heat-sensitive materials.

No contamination: No additional medium is introduced during the grinding process, reducing material contamination.

Low wear: The main grinding effect relies on mutual impact and collision of particles, which reduces wear on the inner wall of the equipment.

Low energy consumption: Compared with traditional grinding equipment, jet mills have higher energy efficiency, saving 15% – 25% of energy.

Easy to control: Modern jet mills are usually equipped with advanced automatic control systems, featuring simple operation and real-time display of operating status.

Parameters