Autogenous Grinding (AG) Mill Liners

Characteristics of Wet Mills：
1). The end cover is not vertically connected to the cylinder and the end cover liner is conical in shape.
2). The discharge end is equipped with a discharge grid plate, and the material discharged from the grid plate is screened by a conical barrel. The undersize material is discharged through the discharge outlet, while the oversize material is returned to the mill for further grinding through a spiral self-return device, forming a closed-loop grinding system. This allows for further control of the discharge particle size and reduces the amount of recirculating material.
3). The ore feed side uses a movable ore feeding trolley.
4). The large gear is fixed on the hollow shaft neck at the discharge end. The remaining parts of the wet autogenous mill have a similar structure to the dry autogenous mill.

Characteristics of Dry Mills:
1). Short hollow shaft neck and short cylinder body, making it easy for materials to enter and facilitating classification, thereby reducing the residence time of materials in the mill and resulting in high production capacity.
2). The end cover and cylinder are vertical, and they are equipped with double concave-convex wave-shaped liners (also known as reversing liners). In addition to protecting the end cover, these liners can prevent material segregation. When the material falls onto one wave peak of the liner, it can be bounced to the other side, increasing the chance of collision with the falling material and ensuring uniform distribution of materials with different particle sizes in the cylinder.
3). The cylinder is lined with T-shaped liners, which act as lifters. Their function is to lift the material to a certain height and let it fall under its own weight, enhancing the impact and crushing effect.
4). The feed enters the autogenous mill through the feed chute, and the crushed material is discharged from the mill by the airflow of the fan. It then enters the corresponding classification equipment for grading. Coarse particles return to the mill for further grinding during the discharge process, relying on their own weight.