Oliver Platinum Series, Руководство по эксплуатации, Страница: 17 / 61

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The End Raise, or the slope from the feed end to the discharge end, controls how fast the product
moves down the deck. As will be seen, this is directly related to the feed rate. If there is not enough
end raise, i.e the slope is too small, the product coming in on the feed end will bunch up and
stratification will not occur well. If there is the proper amount of end raise, there will be a level
amount of product across the deck, and stratification will occur and then separation. If there is too
much end raise the feed rate will not keep up with how fast the product is moving down the deck,
and there will be no stratification or proper separation. This is illustrated in Figure 8.
Figure 8: End Raise (a) too little end raise to keep up with feed rate (b) right amount of end raise to
balance the feed rate (c) too much end raise for the feed rate to keep up with
Deck vibration/speed is tied directly to the side tilt. Like the side tilt, having extreme setting will
cause the same separation issues that Side Tilt causes, but in the opposite sense. Whereas too much
side tilt will allow gravity to pull the particles down to the low side of the deck, too much deck speed
will send them too far to the high side. Likewise, while too little side tilt will cause the particles to
bunch up at the high side and not separate correctly, too little deck speed will cause them to bunch
up towards the low side. This is shown in Figure 9. The assumption in the figure is that the deck side
tilt is kept constant while the deck speed is varied. The two of the them are coupled, and in reality
there will not be separated effects as shown in Figure 6 and Figure 8.