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04.11.2013
Acoustic cleaner releases boiler ash build-up at brewery
Martin Engineering, Neponset, IL, has supplied a sonic horn to the Alaskan Brewing Company. It helps improve ash flow and prevent clogging in the exhaust stream of an ingenious hybrid boiler system that uses spent grain from the brewing process as fuel. Ash accumulation problems had been forcing the company to shut down its equipment on a weekly basis, requiring three to four days of down time. Instead of shutting down the equipment after just 25 hours of operation, company officials now report that, thanks to the newly installed acoustic cleaner, the system can complete an entire brewing cycle, with little or no performance loss in 94 hours of boiler run time.
Because Martin Engineering lacked any data on its sonic horns for this specific application, the company offered to deliver an appropriately sized model to the brewery on a trial basis, with the understanding that the product could be returned without charge if it was unsuccessful. The company also worked with the brewery’s maintenance crew to determine the optimum location and provide instruction on its installation at the intake of the 6in cyclone separator.
Sonic horns work by producing a low-frequency, high-pressure sound wave, which is created when compressed air flexes a titanium diaphragm in the sound generator. This sound wave is then magnified as it is emitted through the cleaner’s bell. The pressure causes dry particulate deposits to resonate and become fluidised, allowing them to be removed by constant gas flow or gravity. Martin Engineering has subsidiaries in several European countries, supported by an extensive regional dealer network. www.martin-eng.com
Martin sonic horn (in orange) installed at the Alaskan brewery
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