Core technology
Acoustic horn
Also known as acoustic horns, industrial acoustic horn.
An acoustic horn is the broader engineering term for a horn-shaped sound emitter that projects high-intensity low-frequency sound for industrial cleaning duty. In day-to-day procurement and trade-press writing the term is used interchangeably with sonic horn; academic and European specification documents tend to prefer "acoustic horn" while North American power-industry literature prefers "sonic horn" or "sonic sootblower".
Why the two names co-exist
Three lineages converge on the same device:
- Acoustical engineering literature describes any directional sound source with an exponential or conical flare as an "acoustic horn", regardless of frequency or intended use.
- Power-industry practice in the United States adopted "sonic horn" as the catalogue term in the 1980s, paralleling "sonic sootblower".
- European industrial procurement has retained "acoustic horn" and "acoustic cleaner" as the dominant phrasing in tender specifications.
The hardware, frequencies, sound-pressure levels, mounting and control logic are identical across all three usages.
SEO and search behaviour
Specifiers searching acoustic horn typically land on industrial, audio-engineering and signalling (ship's horn, alarm-horn) results in the same SERP — the term is more ambiguous than sonic horn. Pages targeting this query benefit from disambiguation copy in the first paragraph (industrial cleaning duty, not signalling) and from cross-linking to the industrial sonic horn disambiguator.
Related terms
Related terms
- Sonic hornA sonic horn is a pneumatically-driven low-frequency sound emitter (typically 60–400 Hz at 140–180 dB SPL) used to dislodge particulate fouling from boilers, ESPs, baghouses and process vessels.
- Acoustic cleanerAn acoustic cleaner is any device that uses high-intensity sound waves to dislodge particulate fouling from inside industrial process equipment such as boilers, ESPs, baghouses and silos.
- Bell hornA bell horn is the conical or exponential flare that amplifies and projects sound from an industrial sonic horn's driver into the vessel being cleaned.
- Low-frequency acoustic cleanerLow-frequency acoustic cleaners operate at 60–250 Hz. The long wavelength penetrates deep into large open vessels such as ESPs, recovery boilers and cement preheater cyclones.