Set Screen Operating Parameters (Water and Deck Settings)

• Spray Bars:  Turns the spray bars on or off for each deck. AggflowDM only changes the wet screen factor for a screen deck if the spray bar is turned on.
• Spray Rate:  Specifies the water rate flowing through the spray bars for each deck. Adding water without the spray bars on will not set the screen area calculation factor for wet screening.
• Water in Product:  Defines how much water is included in the material as it is carried off each screen deck.  All of these inputs are different representations of the same calculation; therefore changes to one will update the others.
  • (gpm)/(st/h): Represents the flow rate added to each ton of material.
  • Solid Weight %:  Represents the weight % of solids in the material (slurry).
  • Solid Volume %:  Represents the volume % of solids in the material (slurry).
• Wetbox Rate:  Add water to the material before it enters the screen.  The water added here will be included in the mass water balance of the plant and the calculation for water included in the product will be performed for all decks even if spray bars are not turned on.

All water not included in these parameters is assumed to fall through the screen and is included in the remaining material.

For each deck there will be a deck settings tab. The tab is dependent on the type of media selected (Mesh, Plate, Bars, Empty)

• Rate of Travel: Enter the rate of travel (initial setting based on user preferences).
• Set Discharge Bed Depth Ratio (DBD): Set the DBD for the deck (Initial setting based on User Preferences).
• Turn Spray Bars on/off: Turns spray bars on or off on the deck. (This changes the wet screening factor)
• Select Slot Type: Select between square, short, or long slot.
• Enter Open Area: Determines or changes the Open Area factor for the screen.
• Set Efficiency Alarm:  The screen will “Red Flag” when the calculated efficiency is below the designated efficiency.  70% is the default.
• Overrule Calculated Efficiency:  AggFlow will calculate using the percentage (70-98% range) entered. 
• Enter Custom Factor:  Enter and name a custom factor for the screen.  AggFlow will calculate using the custom factor.
• Calculated Required Area:  Displays the screen area as calculated using method formulas.
• Power and Emission tabs:  Store detailed information about the machine.