[{"data":1,"prerenderedAt":860},["ShallowReactive",2],{"site-footer-common":3,"glossary:sintering-deposit":45,"glossary-related:sintering-deposit":166},{"id":4,"extension":5,"footer":6,"meta":40,"navbar":41,"stem":43,"__hash__":44},"common\u002Fcommon.yml","yml",{"tagline":7,"links":8,"sections":9},"Acoustic cleaning intelligence for industrial fouling, soot, ash, dust and build-up.",[],[10,19,31],{"title":11,"links":12},"Product",[13,16],{"label":14,"to":15},"How it works","\u002F#product",{"label":17,"to":18},"Cost assessment","\u002F#hero",{"title":20,"links":21},"Company",[22,25,28],{"label":23,"to":24},"What we build","\u002F#about",{"label":26,"to":27},"Careers","\u002F#careers",{"label":29,"to":30},"Contact","\u002F#contact",{"title":32,"links":33},"Resources",[34,37],{"label":35,"to":36},"Blog","\u002Fresources\u002Fblog",{"label":38,"to":39},"Glossary","\u002Fglossary",{},{"links":42},[],"common","YocmZRy1AYfBbpgGVms-zhdiABlF8VTxHx6h4rDmZBA",{"id":46,"title":47,"aliases":48,"body":51,"category":147,"description":148,"extension":149,"meta":150,"navigation":151,"path":152,"relatedTerms":153,"seo":156,"sources":159,"stem":163,"term":164,"__hash__":165},"glossary\u002Fglossary\u002Fsintering-deposit.md","Sintering (deposit)",[49,50],"deposit sintering","ash sintering",{"type":52,"value":53,"toc":140},"minimark",[54,62,67,76,80,93,111,115],[55,56,57,61],"p",{},[58,59,60],"strong",{},"Sintering",", when applied to fouling deposits, is the bonding-together of particles into harder consolidated layers under sustained temperature. A fresh deposit is friable and easy to remove; an aged deposit on a hot tube surface gradually fuses into a bonded film that resists all but the most aggressive cleaning.",[63,64,66],"h2",{"id":65},"why-early-intervention-matters","Why early intervention matters",[55,68,69,70,75],{},"The asymmetry between fresh and sintered deposit cleanability is the underlying argument for continuous acoustic cleaning. A fresh dust layer responds to a single ",[71,72,74],"a",{"href":73},"\u002Fglossary\u002Fsonic-horn","sonic-horn"," pulse; the same dust two days later may resist a full steam-sootblower cycle; two weeks later only water-washing during an outage removes it.",[63,77,79],{"id":78},"temperature-drives-sintering-rate","Temperature drives sintering rate",[81,82,83,87,90],"ul",{},[84,85,86],"li",{},"Below 600 °C — sintering is slow; deposits remain friable for days",[84,88,89],{},"600–800 °C — sintering accelerates; friable phase lasts hours",[84,91,92],{},"Above 800 °C — sintering is rapid; partly molten components bond on contact",[55,94,95,96,100,101,105,106,110],{},"This temperature-driven asymmetry is why ",[71,97,99],{"href":98},"\u002Fglossary\u002Frecovery-boiler","recovery boilers",", ",[71,102,104],{"href":103},"\u002Fglossary\u002Fwaste-to-energy","WtE"," boilers and high-AFR ",[71,107,109],{"href":108},"\u002Fglossary\u002Fpreheater-tower","cement plants"," — all running at the higher end of these ranges — benefit most from continuous cleaning.",[63,112,114],{"id":113},"related-terms","Related terms",[81,116,117,123,129,135],{},[84,118,119],{},[71,120,122],{"href":121},"\u002Fglossary\u002Ffouling","Fouling",[84,124,125],{},[71,126,128],{"href":127},"\u002Fglossary\u002Fslagging","Slagging",[84,130,131],{},[71,132,134],{"href":133},"\u002Fglossary\u002Flow-melt-sticky-ash","Low-melt sticky ash",[84,136,137],{},[71,138,139],{"href":73},"Sonic horn",{"title":141,"searchDepth":142,"depth":142,"links":143},"",2,[144,145,146],{"id":65,"depth":142,"text":66},{"id":78,"depth":142,"text":79},{"id":113,"depth":142,"text":114},"fouling","Sintering, when applied to fouling deposits, is the bonding-together of particles into harder consolidated layers under sustained temperature. A fresh deposit is friable and easy to remove; an aged deposit on a hot tube surface gradually fuses into a bonded film that resists all but the most aggressive cleaning.","md",{},true,"\u002Fglossary\u002Fsintering-deposit",[147,154,155,74],"slagging","low-melt-sticky-ash",{"title":157,"description":158},"Sintering (of deposits) — bonding of fouling particles into harder consolidated layers","Sintering is the bonding-together of fouling particles into harder consolidated layers under sustained temperature. Why early intervention matters: cleaning before sintering is far easier.",[160],{"title":161,"url":162},"Wikipedia — Sintering","https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSintering","glossary\u002Fsintering-deposit","Sintering (of deposits)","12PC9mViC73tqQ2ZrBxVyQPykY44a6F8mhzZyearbxE",[167,340,507,633],{"id":168,"title":122,"aliases":169,"body":172,"category":147,"description":325,"extension":149,"meta":326,"navigation":151,"path":121,"relatedTerms":327,"seo":330,"sources":333,"stem":337,"term":338,"__hash__":339},"glossary\u002Fglossary\u002Ffouling.md",[170,171],"process fouling","heat-transfer fouling",{"type":52,"value":173,"toc":320},[174,231,235,273,277,288,290],[55,175,176,178,179,100,183,100,187,100,191,100,195,100,199,100,203,100,206,208,209,100,211,100,215,100,219,100,223,100,227,230],{},[58,177,122],{}," is the accumulation of unwanted deposits on the surfaces of process equipment. It is the universal phenomenon that connects every application Sylio addresses: ",[71,180,182],{"href":181},"\u002Fglossary\u002Fboiler","boilers",[71,184,186],{"href":185},"\u002Fglossary\u002Felectrostatic-precipitator","ESPs",[71,188,190],{"href":189},"\u002Fglossary\u002Fbaghouse","baghouses",[71,192,194],{"href":193},"\u002Fglossary\u002Fselective-catalytic-reduction","SCR catalysts",[71,196,198],{"href":197},"\u002Fglossary\u002Fhopper","hoppers and silos",[71,200,202],{"href":201},"\u002Fglossary\u002Fheat-recovery-steam-generator","HRSGs",[71,204,205],{"href":108},"cement preheaters",[71,207,99],{"href":98},". Different industries use different specific names for the resulting deposits — ",[71,210,154],{"href":127},[71,212,214],{"href":213},"\u002Fglossary\u002Fscaling","scaling",[71,216,218],{"href":217},"\u002Fglossary\u002Fcoking","coking",[71,220,222],{"href":221},"\u002Fglossary\u002Fbridging","bridging",[71,224,226],{"href":225},"\u002Fglossary\u002Fbuild-up-coating-accretion","coating",[71,228,229],{"href":225},"build-up"," — but fouling is the umbrella that connects them.",[63,232,234],{"id":233},"consequences-of-fouling","Consequences of fouling",[81,236,237,243,249,255,261,267],{},[84,238,239,242],{},[58,240,241],{},"Heat-transfer loss"," — reducing thermal efficiency and raising fuel cost",[84,244,245,248],{},[58,246,247],{},"Pressure-drop rise"," — derating fans and raising power consumption",[84,250,251,254],{},[58,252,253],{},"Flow blockage"," — interrupting material flow in storage and process vessels",[84,256,257,260],{},[58,258,259],{},"Tube corrosion"," — beneath the deposit, accelerated by local chemistry",[84,262,263,266],{},[58,264,265],{},"Forced outages"," — when fouling becomes severe enough to force a shutdown",[84,268,269,272],{},[58,270,271],{},"Emission excursions"," — when air-pollution-control equipment loses effectiveness",[63,274,276],{"id":275},"mitigation-philosophy","Mitigation philosophy",[55,278,279,280,284,285,287],{},"The Sylio philosophy is ",[281,282,283],"em",{},"prevention over remediation",". Continuous low-amplitude ",[71,286,74],{"href":73}," cleaning keeps deposits from consolidating into the bonded layers that demand intensive periodic cleaning. The economic case is clear: every avoided forced outage typically justifies the entire acoustic-cleaning installation.",[63,289,114],{"id":113},[81,291,292,296,301,306,310,316],{},[84,293,294],{},[71,295,128],{"href":127},[84,297,298],{},[71,299,300],{"href":213},"Scaling",[84,302,303],{},[71,304,305],{"href":217},"Coking",[84,307,308],{},[71,309,47],{"href":152},[84,311,312],{},[71,313,315],{"href":314},"\u002Fglossary\u002Fheat-transfer-surface-fouling","Heat-transfer surface fouling",[84,317,318],{},[71,319,139],{"href":73},{"title":141,"searchDepth":142,"depth":142,"links":321},[322,323,324],{"id":233,"depth":142,"text":234},{"id":275,"depth":142,"text":276},{"id":113,"depth":142,"text":114},"Fouling is the accumulation of unwanted deposits on the surfaces of process equipment. It is the universal phenomenon that connects every application Sylio addresses: boilers, ESPs, baghouses, SCR catalysts, hoppers and silos, HRSGs, cement preheaters, recovery boilers. Different industries use different specific names for the resulting deposits — slagging, scaling, coking, bridging, coating, build-up — but fouling is the umbrella that connects them.",{},[154,214,218,328,329,74],"sintering-deposit","heat-transfer-surface-fouling",{"title":331,"description":332},"Fouling — accumulation of unwanted deposits on process equipment surfaces","Fouling is the accumulation of unwanted deposits on process-equipment surfaces. The general umbrella term covering slagging, scaling, coking, sintering and many other specific mechanisms.",[334],{"title":335,"url":336},"Wikipedia — Fouling","https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFouling","glossary\u002Ffouling","Fouling (general)","vsFkT5ifjz3ggye30lYBeL42wZVcgPLYcyF9bwo9YnA",{"id":341,"title":128,"aliases":342,"body":346,"category":147,"description":493,"extension":149,"meta":494,"navigation":151,"path":127,"relatedTerms":495,"seo":498,"sources":501,"stem":505,"term":128,"__hash__":506},"glossary\u002Fglossary\u002Fslagging.md",[343,344,345],"slag deposit","slag bonding","molten slag deposit",{"type":52,"value":347,"toc":488},[348,371,375,389,393,455,461,463],[55,349,350,352,353,357,358,362,363,367,368,370],{},[58,351,128],{}," is the deposition of molten or semi-molten ash on high-temperature surfaces inside a boiler — primarily the ",[71,354,356],{"href":355},"\u002Fglossary\u002Ffurnace","furnace"," ",[71,359,361],{"href":360},"\u002Fglossary\u002Fwaterwall","waterwalls"," and the finishing ",[71,364,366],{"href":365},"\u002Fglossary\u002Fsuperheater","superheater",". Slag is distinguished from ",[71,369,147],{"href":121}," generally by being formed at temperatures high enough to melt the ash; once cooled against the tube it solidifies as a hard, bonded layer.",[63,372,374],{"id":373},"why-slag-is-hard-to-clean","Why slag is hard to clean",[81,376,377,380,383,386],{},[84,378,379],{},"Bonded directly to the tube — not a loose surface deposit",[84,381,382],{},"Hardness comparable to the tube metal itself",[84,384,385],{},"Resists acoustic cleaning — sound energy cannot dislodge a bonded interface",[84,387,388],{},"Removable only with high-energy mechanical methods",[63,390,392],{"id":391},"cleaning-options","Cleaning options",[394,395,396,409],"table",{},[397,398,399],"thead",{},[400,401,402,406],"tr",{},[403,404,405],"th",{},"Tool",[403,407,408],{},"Use case",[410,411,412,424,436,447],"tbody",{},[400,413,414,421],{},[415,416,417],"td",{},[71,418,420],{"href":419},"\u002Fglossary\u002Fwater-cannon","Water cannon",[415,422,423],{},"Standard for furnace waterwall slag",[400,425,426,433],{},[415,427,428,429],{},"Steam ",[71,430,432],{"href":431},"\u002Fglossary\u002Fretract-sootblower","retract sootblower",[415,434,435],{},"Finishing superheater slag, with care for tube erosion",[400,437,438,444],{},[415,439,440],{},[71,441,443],{"href":442},"\u002Fglossary\u002Fexplosive-deslagging","Explosive deslagging",[415,445,446],{},"Severe build-up, periodic intervention",[400,448,449,452],{},[415,450,451],{},"Manual lancing (offline)",[415,453,454],{},"During major outages",[55,456,457,460],{},[71,458,459],{"href":73},"Sonic horns"," are not effective on furnace slag, but they are effective immediately downstream where deposits cool to a friable consistency. Sylio's value on slag-prone units lies in the convective pass, not in the furnace itself.",[63,462,114],{"id":113},[81,464,465,470,475,480,484],{},[84,466,467],{},[71,468,469],{"href":360},"Waterwall",[84,471,472],{},[71,473,474],{"href":365},"Superheater",[84,476,477],{},[71,478,479],{"href":355},"Furnace",[84,481,482],{},[71,483,122],{"href":121},[84,485,486],{},[71,487,420],{"href":419},{"title":141,"searchDepth":142,"depth":142,"links":489},[490,491,492],{"id":373,"depth":142,"text":374},{"id":391,"depth":142,"text":392},{"id":113,"depth":142,"text":114},"Slagging is the deposition of molten or semi-molten ash on high-temperature surfaces inside a boiler — primarily the furnace waterwalls and the finishing superheater. Slag is distinguished from fouling generally by being formed at temperatures high enough to melt the ash; once cooled against the tube it solidifies as a hard, bonded layer.",{},[496,366,356,147,497],"waterwall","water-cannon",{"title":499,"description":500},"Slagging — molten ash bonding to high-temperature boiler surfaces","Slagging is the deposition of molten or semi-molten ash on radiant and high-temperature surfaces in the boiler furnace. Hard, bonded; usually requires water cannons or explosive deslagging.",[502],{"title":503,"url":504},"Power Engineering — How to Deal with Ceaseless Slagging","https:\u002F\u002Fwww.power-eng.com\u002Foperations-maintenance\u002Fhow-to-deal-with-ceaseless-slagging\u002F","glossary\u002Fslagging","ETHZyOpE6ep9L5Ko6HI45eGDis7f8SAGpAWqJo3Z414",{"id":508,"title":134,"aliases":509,"body":513,"category":618,"description":619,"extension":149,"meta":620,"navigation":151,"path":133,"relatedTerms":621,"seo":624,"sources":627,"stem":631,"term":134,"__hash__":632},"glossary\u002Fglossary\u002Flow-melt-sticky-ash.md",[510,511,512],"sticky ash","low-melting ash","alkali-rich sticky ash",{"type":52,"value":514,"toc":612},[515,533,537,545,549,558,562,584,586],[55,516,517,519,520,523,524,527,528,532],{},[58,518,134],{}," is the universal headache of ",[71,521,522],{"href":103},"biomass"," and ",[71,525,526],{"href":103},"waste-to-energy"," boiler operation. It forms when ash particles rich in ",[71,529,531],{"href":530},"\u002Fglossary\u002Falkali-metals-in-ash","alkali metals"," (K, Na) and chlorides soften at typical convective-pass gas temperatures (700–900 °C) and bond to cooler tube surfaces on contact.",[63,534,536],{"id":535},"why-it-defeats-steam-sootblowers","Why it defeats steam sootblowers",[55,538,539,540,544],{},"A steam jet from an ",[71,541,543],{"href":542},"\u002Fglossary\u002Fik-long-retract-sootblower","IK retract sootblower"," is highly effective on dry, friable ash but largely ineffective on a deposit that has bonded as a continuous sticky film. The steam removes only the loose surface layer; the bonded under-layer remains and continues to grow.",[63,546,548],{"id":547},"why-sonic-horns-help","Why sonic horns help",[55,550,551,553,554,557],{},[71,552,459],{"href":73}," work ",[281,555,556],{},"before"," the deposit consolidates. Continuous low-amplitude vibration during the early sticky phase prevents the deposit from forming a bonded interface with the tube. The ash remains friable enough to be released by sootblowers or by the next horn pulse, rather than building up into a self-reinforcing sticky mass.",[63,559,561],{"id":560},"where-it-dominates","Where it dominates",[81,563,564,571,578,581],{},[84,565,566,567],{},"Recovery boilers — see ",[71,568,570],{"href":569},"\u002Fglossary\u002Fcarry-over","carry-over",[84,572,573,577],{},[71,574,576],{"href":575},"\u002Fglossary\u002Fstraw-agricultural-residue-firing","Straw"," and high-alkali biomass",[84,579,580],{},"WtE boilers, especially with high-RDF feed",[84,582,583],{},"Petcoke firing in some configurations",[63,585,114],{"id":113},[81,587,588,593,599,604,608],{},[84,589,590],{},[71,591,592],{"href":530},"Alkali metals in ash",[84,594,595],{},[71,596,598],{"href":597},"\u002Fglossary\u002Fchloride-induced-corrosion","Chloride-induced corrosion",[84,600,601],{},[71,602,603],{"href":103},"Waste-to-energy",[84,605,606],{},[71,607,474],{"href":365},[84,609,610],{},[71,611,139],{"href":73},{"title":141,"searchDepth":142,"depth":142,"links":613},[614,615,616,617],{"id":535,"depth":142,"text":536},{"id":547,"depth":142,"text":548},{"id":560,"depth":142,"text":561},{"id":113,"depth":142,"text":114},"wte-biomass","Low-melt sticky ash is the universal headache of biomass and waste-to-energy boiler operation. It forms when ash particles rich in alkali metals (K, Na) and chlorides soften at typical convective-pass gas temperatures (700–900 °C) and bond to cooler tube surfaces on contact.",{},[622,623,526,366,74],"alkali-metals-in-ash","chloride-induced-corrosion",{"title":625,"description":626},"Low-melt sticky ash — the universal headache of biomass and WtE cleaning","Low-melt sticky ash forms when alkali-rich ash particles soften at typical convective-pass temperatures and bond to tube surfaces. Defeats steam sootblowers; primary target for sonic horns.",[628],{"title":629,"url":630},"Wikipedia — Slagging and fouling in boilers","https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBoiler#Slagging","glossary\u002Flow-melt-sticky-ash","T-fxgBz2Ckq6-Jqq1LywnOSrLjgAelnaRUCmw8i4qQA",{"id":634,"title":139,"aliases":635,"body":639,"category":835,"description":836,"extension":149,"meta":837,"navigation":151,"path":73,"relatedTerms":838,"seo":845,"sources":848,"stem":858,"term":139,"__hash__":859},"glossary\u002Fglossary\u002Fsonic-horn.md",[636,637,638],"sonic horns","sonic cleaning horn","industrial sonic horn",{"type":52,"value":640,"toc":828},[641,666,670,678,682,744,748,784,788,796,798],[55,642,643,644,647,648,652,653,100,655,100,658,100,660,523,663,665],{},"A ",[58,645,646],{},"sonic horn"," is a pneumatically-driven sound emitter that produces high-intensity, low-frequency sound waves — typically between 60 and 400 Hz at sound pressure levels of 140 to 180 dB — used to dislodge particulate fouling from inside industrial process equipment. Sonic horns are the most common form of ",[71,649,651],{"href":650},"\u002Fglossary\u002Facoustic-cleaner","acoustic cleaner"," and the default specification for cleaning ",[71,654,186],{"href":185},[71,656,190],{"href":657},"\u002Fglossary\u002Ffabric-filter",[71,659,194],{"href":193},[71,661,662],{"href":365},"boiler heat-transfer surfaces",[71,664,198],{"href":197},".",[63,667,669],{"id":668},"how-a-sonic-horn-works","How a sonic horn works",[55,671,672,673,677],{},"Compressed plant air admitted through a ",[71,674,676],{"href":675},"\u002Fglossary\u002Fsolenoid-valve","solenoid valve"," drives a metal diaphragm — typically titanium or 316 stainless — into resonant oscillation at the horn's fundamental frequency. The oscillating pressure field is amplified by an exponential bell horn and projected into the vessel as a near-spherical sound wave. Particulate already deposited on internal surfaces receives an oscillating acceleration that overcomes adhesion; loosened material is then carried out with the gas flow before it can sinter, bridge or bond. Because the cleaning is acoustic and non-contact, the horn can fire while the plant is online without tube erosion, refractory damage or thermal shock.",[63,679,681],{"id":680},"key-parameters","Key parameters",[394,683,684,694],{},[397,685,686],{},[400,687,688,691],{},[403,689,690],{},"Parameter",[403,692,693],{},"Typical range",[410,695,696,704,712,720,728,736],{},[400,697,698,701],{},[415,699,700],{},"Fundamental frequency",[415,702,703],{},"60–400 Hz",[400,705,706,709],{},[415,707,708],{},"Sound pressure level",[415,710,711],{},"140–180 dB",[400,713,714,717],{},[415,715,716],{},"Compressed-air consumption",[415,718,719],{},"8–14 Nm³\u002Fmin at 4–7 bar",[400,721,722,725],{},[415,723,724],{},"Operating temperature (with appropriate materials)",[415,726,727],{},"−40 °C to +500 °C",[400,729,730,733],{},[415,731,732],{},"Firing cycle",[415,734,735],{},"5–15 s burst, repeated every 3–15 minutes",[400,737,738,741],{},[415,739,740],{},"Mass",[415,742,743],{},"15–60 kg depending on horn size",[63,745,747],{"id":746},"frequency-selection","Frequency selection",[55,749,750,751,100,755,758,759,100,763,767,768,100,771,775,776,523,780,665],{},"Lower frequencies (60–125 Hz) project longer wavelengths and penetrate further into large open vessels — ",[71,752,754],{"href":753},"\u002Fglossary\u002Fpreheater-cyclone","preheater cyclones",[71,756,757],{"href":98},"recovery-boiler superheaters",", large ",[71,760,762],{"href":761},"\u002Fglossary\u002Fesp-field-bus-section","ESP fields",[71,764,766],{"href":765},"\u002Fglossary\u002Fsilo","silos",". Higher frequencies (230–400 Hz) carry more energy per unit volume and suit finer dust loads in ",[71,769,770],{"href":657},"fabric-filter compartments",[71,772,774],{"href":773},"\u002Fglossary\u002Fhoneycomb-catalyst","catalyst layers"," and smaller hopper geometries. See ",[71,777,779],{"href":778},"\u002Fglossary\u002Flow-frequency-acoustic-cleaner","low-frequency acoustic cleaner",[71,781,783],{"href":782},"\u002Fglossary\u002Fhigh-frequency-acoustic-cleaner","high-frequency acoustic cleaner",[63,785,787],{"id":786},"sonic-horn-vs-steam-sootblower","Sonic horn vs steam sootblower",[55,789,790,791,795],{},"Sonic horns are increasingly specified alongside or in place of ",[71,792,794],{"href":793},"\u002Fglossary\u002Fsteam-sootblower","steam sootblowers"," because they consume no boiler-grade steam, cause no tube erosion, require almost no moving parts and can fire every few minutes without operator intervention. They are less effective on hard, fused slag than retractable steam lances, so on furnace waterwalls and high-temperature superheaters they typically complement rather than replace mechanical cleaning.",[63,797,114],{"id":113},[81,799,800,805,811,817,823],{},[84,801,802],{},[71,803,804],{"href":650},"Acoustic cleaner",[84,806,807],{},[71,808,810],{"href":809},"\u002Fglossary\u002Fsonic-sootblower","Sonic sootblower",[84,812,813],{},[71,814,816],{"href":815},"\u002Fglossary\u002Fbell-horn","Bell horn",[84,818,819],{},[71,820,822],{"href":821},"\u002Fglossary\u002Fdiaphragm-horn","Diaphragm horn",[84,824,825],{},[71,826,827],{"href":778},"Low-frequency acoustic cleaner",{"title":141,"searchDepth":142,"depth":142,"links":829},[830,831,832,833,834],{"id":668,"depth":142,"text":669},{"id":680,"depth":142,"text":681},{"id":746,"depth":142,"text":747},{"id":786,"depth":142,"text":787},{"id":113,"depth":142,"text":114},"core-technology","A sonic horn is a pneumatically-driven sound emitter that produces high-intensity, low-frequency sound waves — typically between 60 and 400 Hz at sound pressure levels of 140 to 180 dB — used to dislodge particulate fouling from inside industrial process equipment. Sonic horns are the most common form of acoustic cleaner and the default specification for cleaning ESPs, baghouses, SCR catalysts, boiler heat-transfer surfaces and hoppers and silos.",{},[839,840,841,842,843,844],"acoustic-cleaner","acoustic-cleaning-system","sonic-sootblower","bell-horn","diaphragm-horn","low-frequency-acoustic-cleaner",{"title":846,"description":847},"Sonic horn — definition, frequency, SPL and industrial applications","A 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.",[849,852,855],{"title":850,"url":851},"Power Engineering — Sonic Horns: A User's Introduction","https:\u002F\u002Fwww.power-eng.com\u002Fcoal\u002Fsonic-horns-a-userrsquos-introduction\u002F",{"title":853,"url":854},"Power Engineering — Tuning in to Acoustic Cleaning","https:\u002F\u002Fwww.power-eng.com\u002Fcoal\u002Ftuning-in-to-acoustic-cleaning\u002F",{"title":856,"url":857},"Wikipedia — Sonic soot blowers","https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSonic_soot_blowers","glossary\u002Fsonic-horn","YzrhN0kKzqSaQo0wfn0rueNZ-V43mcg5zahqeWi3lnU",1782613738876]