An agitated surge is a temporary storage device that is used to maintain product free-flowing that can set up with time in a hopper. The second use is to make a low profile hopper that won’t flow so the surge directs material to an outlet valve. The agitation can be a ribbon or paddles turning at very slow speed.
The unit picture below is directly under an air receiver and is handling zylitol. The unit withstands full vacuum and will withstand explosion. An explosion would be directed to the receiver where there is a pressure relief panel.
They can also be made for atmospheric use.
Construction of this unit is Tp304L Stainless Steel contact. Seals are air purged. All components are Atex, CE, CSA or UL approved for the application.
Various capacities available, 100 cubic foot as shown and 60 cubic foot are the most popular sizes.