[{"data":1,"prerenderedAt":541},["ShallowReactive",2],{"site-header-common":3,"site-footer-common":59,"site-navigation-common":86,"applications-index":113},{"id":4,"extension":5,"footer":6,"meta":50,"navbar":51,"stem":57,"__hash__":58},"common\u002Fcommon.yml","yml",{"tagline":7,"legalTitle":8,"cookieSettingsLabel":9,"links":10,"sections":11},"Acoustic cleaning intelligence for industrial fouling, soot, ash, dust and build-up.","Legal","Cookie preferences",[],[12,24,36,48],{"title":13,"links":14},"Product",[15,18,21],{"label":16,"to":17},"How it works","\u002F#how-it-works",{"label":19,"to":20},"Application fit","\u002F#fit",{"label":22,"to":23},"ROI calculator \u002F Coming soon","\u002F#economics",{"title":25,"links":26},"Applications",[27,30,33],{"label":28,"to":29},"Boilers and heat transfer","\u002Fapplications\u002Fboilers-heat-transfer",{"label":31,"to":32},"SCR catalyst cleaning","\u002Fapplications\u002Fscr-catalyst-cleaning",{"label":34,"to":35},"Dust collection","\u002Fapplications\u002Fdust-collection",{"title":37,"links":38},"Resources",[39,42,45],{"label":40,"to":41},"Blog","\u002Fresources\u002Fblog",{"label":43,"to":44},"Glossary","\u002Fglossary",{"label":46,"to":47},"Buyer's guide","\u002Fresources\u002Fblog\u002Facoustic-cleaning-system",{"title":8,"links":49},[],{},{"links":52,"action":56},[53,55],{"label":25,"to":54},"\u002F#applications",{"label":16,"to":17},{"label":22,"to":23},"common","rzKP9GVWGTSjN3RTtCIYeR1oX7iQIvlngM7hHP108rc",{"id":4,"extension":5,"footer":60,"meta":80,"navbar":81,"stem":57,"__hash__":58},{"tagline":7,"legalTitle":8,"cookieSettingsLabel":9,"links":61,"sections":62},[],[63,68,73,78],{"title":13,"links":64},[65,66,67],{"label":16,"to":17},{"label":19,"to":20},{"label":22,"to":23},{"title":25,"links":69},[70,71,72],{"label":28,"to":29},{"label":31,"to":32},{"label":34,"to":35},{"title":37,"links":74},[75,76,77],{"label":40,"to":41},{"label":43,"to":44},{"label":46,"to":47},{"title":8,"links":79},[],{},{"links":82,"action":85},[83,84],{"label":25,"to":54},{"label":16,"to":17},{"label":22,"to":23},{"id":4,"extension":5,"footer":87,"meta":107,"navbar":108,"stem":57,"__hash__":58},{"tagline":7,"legalTitle":8,"cookieSettingsLabel":9,"links":88,"sections":89},[],[90,95,100,105],{"title":13,"links":91},[92,93,94],{"label":16,"to":17},{"label":19,"to":20},{"label":22,"to":23},{"title":25,"links":96},[97,98,99],{"label":28,"to":29},{"label":31,"to":32},{"label":34,"to":35},{"title":37,"links":101},[102,103,104],{"label":40,"to":41},{"label":43,"to":44},{"label":46,"to":47},{"title":8,"links":106},[],{},{"links":109,"action":112},[110,111],{"label":25,"to":54},{"label":16,"to":17},{"label":22,"to":23},[114,257,416],{"id":115,"title":116,"body":117,"description":231,"extension":232,"eyebrow":233,"meta":234,"navigation":235,"path":29,"primary":236,"relatedLinks":238,"seo":248,"stem":251,"summary":252,"__hash__":256},"applications\u002Fapplications\u002Fboilers-heat-transfer.md","Boilers and heat-transfer surfaces",{"type":118,"value":119,"toc":221},"minimark",[120,125,129,132,136,158,162,165,168,172,175,195,198,202,205,208,212],[121,122,124],"h2",{"id":123},"start-with-the-zone-not-the-boiler-label","Start with the zone, not the boiler label",[126,127,128],"p",{},"A boiler can contain several fundamentally different deposit duties. Furnace slag, superheater fouling, convective-pass ash, economiser deposits and air-heater pluggage do not behave alike. Temperature, chemistry, residence time and the existing cleaning method can change the answer from one surface to the next.",[126,130,131],{},"Acoustic cleaning is primarily preventive. Its strongest role is to keep suitable particulate mobile before it consolidates. It should not be presented as a universal substitute for the concentrated energy of sootblowing, water cleaning or offline removal.",[121,133,135],{"id":134},"stronger-candidate-conditions","Stronger candidate conditions",[137,138,139,143,146,149,152,155],"ul",{},[140,141,142],"li",{},"The deposit is dry, friable or only lightly bonded when the system fires.",[140,144,145],{},"Build-up recurs after a clean or recoverable starting condition.",[140,147,148],{},"The affected surface sits in a gas-filled space that pressure oscillations can reach.",[140,150,151],{},"Released ash can fall or travel into an existing collection and removal system.",[140,153,154],{},"A temperature, pressure, heat-rate, load or cleaning signal changes as the deposit develops.",[140,156,157],{},"Mounting, materials, air supply and access can be reviewed for the actual duty.",[121,159,161],{"id":160},"conditions-that-need-another-answer","Conditions that need another answer",[126,163,164],{},"Hot slag, molten material, deeply sintered ash, coke and chemically cemented deposits usually require another method. Sticky biomass or waste-derived ash may change character rapidly with fuel chemistry and surface temperature. Process correction, fuel management, temperature control or a high-energy cleaning method may remain the primary action.",[126,166,167],{},"An acoustic system also cannot solve a downstream ash-removal bottleneck. Material that is released but not evacuated can accumulate elsewhere or become re-entrained.",[121,169,171],{"id":170},"establish-the-operating-consequence","Establish the operating consequence",[126,173,174],{},"Choose the primary metric before proposing a system. Depending on the zone, that may be:",[137,176,177,180,183,186,189,192],{},[140,178,179],{},"flue-gas exit temperature at comparable load;",[140,181,182],{},"heat rate, fuel use or steam conditions;",[140,184,185],{},"gas-path differential pressure or fan demand;",[140,187,188],{},"sootblower frequency, steam consumption or maintenance;",[140,190,191],{},"manual-cleaning hours and outage duration;",[140,193,194],{},"campaign length before derate or cleaning.",[126,196,197],{},"The baseline needs representative load, fuel and ambient conditions. A short favourable period is not enough to establish a sustained result.",[121,199,201],{"id":200},"define-how-acoustic-cleaning-would-coexist","Define how acoustic cleaning would coexist",[126,203,204],{},"The practical question is often not whether horns or sootblowers win everywhere. It is whether preventive acoustic cleaning can reduce accumulation in a defined dry zone while existing equipment remains available for deposits that need higher cleaning energy.",[126,206,207],{},"Document which sootblowers, washes or offline tasks remain in the operating plan. That makes the proposed change testable and prevents a local result from becoming a plant-wide replacement claim.",[121,209,211],{"id":210},"evidence-to-collect","Evidence to collect",[126,213,214,215,220],{},"Use the ",[216,217,219],"a",{"href":218},"\u002Fguidance\u002Fevidence-checklist","evidence checklist"," to record the exact zone, fresh and mature deposit condition, temperature range, fuel or process changes, current cleaning sequence, drawings, access and the metric that matters. The guide does not establish final suitability, but it exposes the questions that a technical review must resolve.",{"title":222,"searchDepth":223,"depth":223,"links":224},"",2,[225,226,227,228,229,230],{"id":123,"depth":223,"text":124},{"id":134,"depth":223,"text":135},{"id":160,"depth":223,"text":161},{"id":170,"depth":223,"text":171},{"id":200,"depth":223,"text":201},{"id":210,"depth":223,"text":211},"Qualify recurring deposits by zone, condition and operating effect before considering acoustic cleaning alongside sootblowers, washing or offline work.","md","Application \u002F Heat transfer",{},true,{"label":237,"to":41},"Explore technical guidance",[239,242,245],{"label":240,"to":241},"Sonic horn versus steam sootblower","\u002Fresources\u002Fblog\u002Fsonic-horn-vs-steam-sootblower",{"label":243,"to":244},"Sticky biomass and waste-to-energy ash","\u002Fresources\u002Fblog\u002Fsticky-ash-biomass-waste-to-energy-boilers",{"label":246,"to":247},"ROI and payback guide","\u002Fresources\u002Fblog\u002Facoustic-cleaning-roi-payback",{"title":249,"description":250},"Acoustic cleaning for boilers and heat-transfer surfaces","Assess dry boiler and gas-path fouling by deposit, zone, current cleaning and measurable operating effect before specifying acoustic cleaning.","applications\u002Fboilers-heat-transfer",[253,254,255],"The strongest acoustic-cleaning candidates are recurring dry deposits in cooler convective and gas-path zones.","Hot, sticky, slagged, sintered or chemically bonded material usually needs another cleaning method or process correction.","A useful case starts from a clean baseline and measures temperature, heat rate, pressure loss, run length or cleaning demand.","cl99-WXEFiEb_1zdRdTVey8mPNQg2Yc95OI5kcln0_8",{"id":258,"title":259,"body":260,"description":393,"extension":232,"eyebrow":394,"meta":395,"navigation":235,"path":35,"primary":396,"relatedLinks":397,"seo":407,"stem":410,"summary":411,"__hash__":415},"applications\u002Fapplications\u002Fdust-collection.md","ESP and baghouse dust collection",{"type":118,"value":261,"toc":386},[262,266,269,272,276,279,296,299,303,306,326,329,331,348,351,355,358,378,381],[121,263,265],{"id":264},"diagnose-the-affected-function-first","Diagnose the affected function first",[126,267,268],{},"An ESP and a baghouse each combine collection surfaces, cleaning equipment, gas flow and dust removal. A symptom at the stack, fan or differential-pressure transmitter can originate in more than one part of that chain.",[126,270,271],{},"Acoustic cleaning should be considered only after the affected location and mechanism are defined. Keeping dry dust mobile in a hopper is not the same duty as cleaning a bag, correcting an ESP electrical problem or repairing a feeder.",[121,273,275],{"id":274},"baghouse-assessment-path","Baghouse assessment path",[126,277,278],{},"For a baghouse, separate these questions:",[137,280,281,284,287,290,293],{},[140,282,283],{},"Are the bags returning towards their clean differential pressure after each pulse?",[140,285,286],{},"Is filter media blinded, damaged, incorrectly tensioned or operating outside its intended air-to-cloth ratio?",[140,288,289],{},"Are pulse pressure, valve sequence and compressed-air quality correct?",[140,291,292],{},"Is dust leaving the hopper, or is it being re-entrained onto the bags?",[140,294,295],{},"Have gas moisture, temperature, chemistry or production rate changed?",[126,297,298],{},"Acoustic cleaning may support suitable dry hopper, plenum or dead-zone deposits. It does not repair blinded media or a weak pulse-cleaning system.",[121,300,302],{"id":301},"esp-assessment-path","ESP assessment path",[126,304,305],{},"For an ESP, distinguish:",[137,307,308,311,314,317,320,323],{},[140,309,310],{},"collecting-plate or discharge-electrode build-up;",[140,312,313],{},"rapper condition and sequence;",[140,315,316],{},"hopper accumulation and evacuation;",[140,318,319],{},"gas temperature, moisture and dust resistivity;",[140,321,322],{},"transformer-rectifier and electrical-field performance;",[140,324,325],{},"sneakage, gas distribution and re-entrainment.",[126,327,328],{},"A cleaning concept that improves a hopper condition does not automatically correct electrical or collection-performance constraints elsewhere in the precipitator.",[121,330,135],{"id":134},[137,332,333,336,339,342,345],{},[140,334,335],{},"Fine, dry dust accumulates repeatedly in a gas-filled and acoustically reachable space.",[140,337,338],{},"The deposit remains friable before it bridges or consolidates.",[140,340,341],{},"Hoppers, screws, valves and conveyors can accept the released load.",[140,343,344],{},"Mounting can be engineered without compromising casing, insulation or internals.",[140,346,347],{},"A location-specific metric and inspection method exist.",[126,349,350],{},"Wet or cohesive material, packed solids, failed discharge equipment and geometry-driven mass-flow problems usually need another method or root-cause correction.",[121,352,354],{"id":353},"measurement-plan","Measurement plan",[126,356,357],{},"Select metrics that match the diagnosed zone:",[137,359,360,363,366,369,372,375],{},[140,361,362],{},"baghouse differential-pressure baseline and recovery after cleaning;",[140,364,365],{},"pulse frequency, fan current and production rate;",[140,367,368],{},"ESP voltage, current, spark rate and opacity where relevant;",[140,370,371],{},"hopper level, discharge interruptions and manual interventions;",[140,373,374],{},"dust-removal equipment load and re-entrainment observations;",[140,376,377],{},"comparable inspection photographs over a defined campaign.",[126,379,380],{},"Released material must remain part of the acceptance plan. A cleaner collection space is not a successful result if it overloads a rotary valve, screw or downstream conveyor.",[126,382,214,383,385],{},[216,384,219],{"href":218}," to keep the bag, field, hopper and discharge functions separate before progressing to technical review.",{"title":222,"searchDepth":223,"depth":223,"links":387},[388,389,390,391,392],{"id":264,"depth":223,"text":265},{"id":274,"depth":223,"text":275},{"id":301,"depth":223,"text":302},{"id":134,"depth":223,"text":135},{"id":353,"depth":223,"text":354},"Distinguish hopper and discharge build-up from plate, electrode, filter-media, pulse-cleaning and gas-condition faults before selecting a cleaning method.","Application \u002F Dust collection",{},{"label":237,"to":41},[398,401,404],{"label":399,"to":400},"Why baghouse differential pressure rises","\u002Fresources\u002Fblog\u002Fbaghouse-differential-pressure-rising",{"label":402,"to":403},"Horn, air cannon or bin vibrator","\u002Fresources\u002Fblog\u002Fsonic-horn-vs-air-cannon-vs-bin-vibrator",{"label":405,"to":406},"Measurement and trial guide","\u002Fguidance\u002Fmeasurement-and-trials",{"title":408,"description":409},"Acoustic cleaning for ESP and baghouse dust collection","Assess ESP and baghouse dust build-up by exact location, deposit condition, pressure, collection stability and hopper discharge before specifying acoustic cleaning.","applications\u002Fdust-collection",[412,413,414],"An equipment-level symptom such as rising pressure or unstable collection does not identify the deposit location by itself.","Acoustic cleaning is most plausible for recurring dry dust in reachable spaces with enough downstream discharge capacity.","The assessment must keep ESP electrical performance, bag condition, pulse cleaning and hopper flow as separate diagnostic paths.","n7YsUeZw37cdXU6Wh2qP5J77nwoflGZeQlO0o1DIoFQ",{"id":417,"title":31,"body":418,"description":521,"extension":232,"eyebrow":522,"meta":523,"navigation":235,"path":32,"primary":524,"relatedLinks":525,"seo":532,"stem":535,"summary":536,"__hash__":540},"applications\u002Fapplications\u002Fscr-catalyst-cleaning.md",{"type":118,"value":419,"toc":513},[420,424,427,430,432,452,456,459,462,466,469,492,495,499,502,505,507],[121,421,423],{"id":422},"separate-ash-pluggage-from-other-scr-problems","Separate ash pluggage from other SCR problems",[126,425,426],{},"Rising pressure loss, changing ammonia slip, reduced NOx performance or visible catalyst obstruction can occur together, but they do not prove one cause. Dry ash accumulation may be a cleaning problem. Ammonium bisulphate, catalyst masking or poisoning, erosion, damaged seals, flow maldistribution and reagent-control faults need different responses.",[126,428,429],{},"The first assessment task is therefore diagnostic: identify the catalyst layer and zone, inspect the deposit, and compare the operating signals with representative baseline conditions.",[121,431,135],{"id":134},[137,433,434,437,440,443,446,449],{},[140,435,436],{},"The obstruction is recurring dry, friable ash rather than sticky or chemically bonded material.",[140,438,439],{},"The catalyst begins clean enough for preventive control to be evaluated.",[140,441,442],{},"Pressure oscillations can reach the relevant catalyst face or passage.",[140,444,445],{},"Mounting keeps the selected equipment inside its temperature and material limits.",[140,447,448],{},"Released ash has a controlled route into the downstream collection system.",[140,450,451],{},"Pressure loss, catalyst condition and emissions-control stability can be monitored together.",[121,453,455],{"id":454},"conditions-that-need-review-or-another-method","Conditions that need review or another method",[126,457,458],{},"Sticky ammonium salts, moisture, corrosion products, hardened deposits and damaged catalyst cannot be reduced to an acoustic-sizing question. Internal hardware exposed to unsuitable temperature, inaccessible geometry or a downstream system already near its ash-handling limit can also make the concept unsuitable.",[126,460,461],{},"Noise, vibration, catalyst-media interaction, access, hazardous-area requirements and the effect of released material need site-specific review. A claim that an acoustic cleaner is universally non-damaging would not establish any of these points.",[121,463,465],{"id":464},"measure-more-than-pressure-drop","Measure more than pressure drop",[126,467,468],{},"Pressure drop is an important signal, but the acceptance plan should not optimise it in isolation. Establish:",[137,470,471,474,477,480,483,486,489],{},[140,472,473],{},"catalyst-layer and reactor differential pressure;",[140,475,476],{},"load, gas flow and temperature during comparison periods;",[140,478,479],{},"NOx reduction, ammonia slip and relevant emissions signals;",[140,481,482],{},"deposit observations from inspections or borescope access;",[140,484,485],{},"current sootblower or cleaning frequency;",[140,487,488],{},"downstream hopper, ESP or baghouse response;",[140,490,491],{},"the duration over which improvement must persist.",[126,493,494],{},"The primary metric and stop criteria should be agreed before a trial or installation. Any process changes during the comparison period should remain visible in the result.",[121,496,498],{"id":497},"treat-mounting-as-part-of-the-application","Treat mounting as part of the application",[126,500,501],{},"An external installation, penetration, waveguide or internally exposed assembly will not share the same thermal and maintenance conditions. Product selection, materials, structural loads, sealing, access, compressed air, valve arrangement and controls belong in the technical scope.",[126,503,504],{},"A category example can show that acoustic cleaning has been tried on an SCR. It cannot establish that a different deposit, mounting or reactor will perform the same way.",[121,506,211],{"id":210},[126,508,509,510,512],{},"Record photographs of the fresh and mature deposit, layer arrangement, operating temperature, pressure trends, catalyst history, current cleaning sequence and the route released ash would follow. Use the ",[216,511,219],{"href":218}," before any quotation or equipment recommendation is requested.",{"title":222,"searchDepth":223,"depth":223,"links":514},[515,516,517,518,519,520],{"id":422,"depth":223,"text":423},{"id":134,"depth":223,"text":135},{"id":454,"depth":223,"text":455},{"id":464,"depth":223,"text":465},{"id":497,"depth":223,"text":498},{"id":210,"depth":223,"text":211},"Assess dry ash pluggage, gas-flow restriction and catalyst access without treating every pressure or emissions problem as an acoustic-cleaning duty.","Application \u002F Emissions control",{},{"label":237,"to":41},[526,528,531],{"label":527,"to":47},"Acoustic cleaning system guide",{"label":529,"to":530},"How the assessment works","\u002Fguidance\u002Fhow-the-assessment-works",{"label":405,"to":406},{"title":533,"description":534},"SCR catalyst acoustic cleaning application guide","Qualify SCR catalyst ash pluggage by deposit, mounting, temperature, pressure loss, emissions conditions and ash removal before selecting acoustic cleaning.","applications\u002Fscr-catalyst-cleaning",[537,538,539],"Dry, recurring ash on accessible catalyst passages can be a preventive acoustic-cleaning candidate.","Ammonium bisulphate, sticky deposits, catalyst damage, maldistribution and chemistry problems require separate diagnosis.","Mounting, temperature exposure and the downstream path for released ash are part of the fit decision.","Ku4TjGRsI_nHNHyKAiDNucUeEwxt9NaY7zjXksNnARQ",1784218412191]