In researching and writing about sonic soot blowers, it has become obvious that sound waves can provide a solution for many problems in industry.
One which I have not referred to before is that of bulk material levelling. If the bulk material inside a silo is not level, it simply cannot be measured accurately nor can the silo operate to optimum efficiency. Operational difficulties and downtime are the common result. Installing acoustic cleaners, however, can solve this problem.
How does this work? Well, the explanation involves terminology such as ratholing and bridging and formulas for calculating volume material. Sounds complicated but in fact there's a great explanation with diagrams courtesy of a world leading supplier of acoustic cleaners who put together this web page called silo content levelling.