4.1 Definitions Solids eiection Emptying of the bowl during operation by uncovering and closing slots in the bowl wall Total eiection Total emptying of the bowl with the feed (as a rule) turned off.4.1 Definitions • Solids ejection – Emptying of the bowl during operation by uncovering and closing slots in the bowl wall. • Total ejection – Total emptying of the bowl with the feed (as a rule) turned off