XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3 3763
slurry and solids for the Curved1 case compared to Radial1
case. In the next section a comparison between the radial
and curved designs is performed.
Comparison between the radial and curved discharge
systems
The next set of plots in Figure 9 (for slurry) and Figure10
(for solids) will compare the discharge rates, the inwards
and outwards flow rates through the grates for both designs
Radial and Curved.
The above plots show that the curved design is a more
efficient discharge system at higher discharge rates (when
the grates are positioned lower in the pans). As the slots
are moved radially towards the center of the mill, the radial
and curved designs perform almost equally. Similar results
showing the curved design performing better than the radial
one have been reported by Gutierrez, Ahues, Gonzalez and
Merino (2018) in their DEM study of a full mill with dif-
ferent pulp lifters and shell liner lifters. One of the reasons
behind this behavior could be the fact that curved designs
are more efficient at discharging the slurry and the solids
Figure 7. Snapshots from the simulation for the Curved1, Curved4 and Curved7 cases
slurry and solids for the Curved1 case compared to Radial1
case. In the next section a comparison between the radial
and curved designs is performed.
Comparison between the radial and curved discharge
systems
The next set of plots in Figure 9 (for slurry) and Figure10
(for solids) will compare the discharge rates, the inwards
and outwards flow rates through the grates for both designs
Radial and Curved.
The above plots show that the curved design is a more
efficient discharge system at higher discharge rates (when
the grates are positioned lower in the pans). As the slots
are moved radially towards the center of the mill, the radial
and curved designs perform almost equally. Similar results
showing the curved design performing better than the radial
one have been reported by Gutierrez, Ahues, Gonzalez and
Merino (2018) in their DEM study of a full mill with dif-
ferent pulp lifters and shell liner lifters. One of the reasons
behind this behavior could be the fact that curved designs
are more efficient at discharging the slurry and the solids
Figure 7. Snapshots from the simulation for the Curved1, Curved4 and Curved7 cases