Simple, Low Cost Flow Aids
An insulation manufacturing company are using vibrating aerator pads to aid with the flow of silica in a silo.
The silica media is room temperature, and is sucked through the silo via negative pressure. The aerators are fitted on the inside of this particular silo, in three rows and roughly 500mm apart. One of the outlets of an aerator can be seen on the bottom right exterior of the silo below, with the blue pipe which would be attached to an air feed.