justfy the operation of a rod mill in an open circuit

A discharging port of the rod mill (3) is in communication with a sieving chamber of the fine powder screening machine (2).

A bottom discharging port of the fine powder screening machine (2), a feeding port of the rod mill (3), and a blowing port of the blower (1) are in communication.

It can replace the rod mill sand machine, the impact sanding machine, the cone crusher and other mechanical equipment to produce the more perfect aggregate of building sand and stone.