The present invention provides a grinding and shaping method using a vertical grinding mill. The grinding and shaping method comprises selecting a vertical grinding mill with thread pitch/diameter ratio of a spiral rotor; selecting the grade of a grinding medium and determining a filling factor and adding the grinding medium into a grinding chamber of the vertical grinding mill; sequentially initiating a dust collector, an air blowing device, a driving device and a feeding device; adjusting rotation speed of the spiral rotor; feeding a raw material into the feeding port at an upper end of the grinding chamber; initiating a discharging device, and discharging the raw material from a discharging port; wherein when selecting the vertical grinding mill, the thread pitch/diameter ratio of the spiral rotor is determined according to the Mohs hardness of the raw material.

In some embodiments, a gravity aided grinding mill apparatus may include an intake for receiving a grinding media and a grindable material. A first elongated runner may be in communication with the intake, and a first doubleback coupling may be in communication with the first elongated runner. Grinding media and grindable material may travel in a first direction across the first elongated runner into the first doubleback coupling and the first doubleback coupling may change the direction of travel of grinding media and grindable material into a second direction. A second elongated runner may be in communication with the first doubleback coupling, and the second elongated runner may receive the grinding media and grindable material traveling in the second direction from the first doubleback coupling. The grinding media and grindable material may be communicated from an output and across a grizzly screen.

One embodiment of a media handling system (5) is disclosed for mixing and or entraining grinding media (15) with a liquid media (10) for supply to a selected destination (D). In one form, the system (5) comprises a first media transfer module (30) configured operable for providing a flow of liquid media (10) having a respective flow condition to a first inlet (11) by way of which liquid media is receivable by the system (5). The system (5) comprises a second media transfer module (25) arranged in fluid communication with and downstream of both of the first inlet (11) and a second inlet (16) by way of which grinding media (15) is receivable by the system (5). The second media transfer module (25) is configured operable for supplying to the selected destination (D) a mixed flow of liquid and grinding media having a respective flow condition. In operation, one or both of the first (30) and second media transfer modules (25) are configured operable relative to the other for modifying one or both of the respective flow conditions so as to be operable or cooperable for facilitating a drawing or urging of a flow of the grinding media (15) into the system (5) via the second inlet (16) for controllably modifying a concentration of grinding media in the mixed flow of liquid and grinding media so as to converge toward and or substantially maintain a target concentration of grinding media (15) determined to be suitable for enabling supply of the mixed flow to the selected destination (D) by the second media transfer module (25).

One embodiment of a media handling system (5) is disclosed for mixing and or entraining grinding media (15) with a liquid media (10) for supply to a selected destination (D). In one form, the system (5) comprises a first media transfer module (30) configured operable for providing a flow of liquid media (10) having a respective flow condition to a first inlet (11) by way of which liquid media is receivable by the system (5). The system (5) comprises a second media transfer module (25) arranged in fluid communication with and downstream of both of the first inlet (11) and a second inlet (16) by way of which grinding media (15) is receivable by the system (5). The second media transfer module (25) is configured operable for supplying to the selected destination (D) a mixed flow of liquid and grinding media having a respective flow condition. In operation, one or both of the first (30) and second media transfer modules (25) are configured operable relative to the other for modifying one or both of the respective flow conditions so as to be operable or cooperable for facilitating a drawing or urging of a flow of the grinding media (15) into the system (5) via the second inlet (16) for controllably modifying a concentration of grinding media in the mixed flow of liquid and grinding media so as to converge toward and or substantially maintain a target concentration of grinding media (15) determined to be suitable for enabling supply of the mixed flow to the selected destination (D) by the second media transfer module (25).