Lesson 6/Learning Event 4
TABLE 14. MODEL DA60 DRYER CAPACITIES
FIGURE 22. DA60 DRYER CAPACITY CHART
Step 4. Determine the Screen Capacity.
Screen capacity is determined by the amount of aggregate the smallest size screen will pass.
Figure 23 illustrates the relationship between screen openings and aggregate processing rates for
the screen which feeds Bin #1. Total screen capacity is then found by applying the following
formula:
Example: Aggregate blend, Figure 20. Bins and fines feeder separations-given in Step 2 (Screen
Selection) and in Figure 20. From Figure 20, the 5/324nch screen is the smallest to
be used. Figure 23 reveals a passing rate of 70 TPH. The amount of aggregate fed to
Bin #1 is 47%. Thus:
85
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