[{"data":1,"prerenderedAt":484},["ShallowReactive",2],{"site-footer-common":3,"glossary:manual-lancing":45,"glossary-related:manual-lancing":180},{"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":161,"description":162,"extension":163,"meta":164,"navigation":165,"path":166,"relatedTerms":167,"seo":171,"sources":174,"stem":178,"term":47,"__hash__":179},"glossary\u002Fglossary\u002Fmanual-lancing.md","Manual lancing",[49,50],"manual rodding","hand-lance cleaning",{"type":52,"value":53,"toc":154},"minimark",[54,61,66,101,105,122,130,134],[55,56,57,60],"p",{},[58,59,47],"strong",{}," is operator-performed cleaning of industrial equipment using handheld rods, lances, water jets or hammers. In modern industrial practice it is the cleaning method of last resort — performed when automated cleaning systems have failed to prevent build-up that now requires direct human intervention.",[62,63,65],"h2",{"id":64},"where-it-persists","Where it persists",[67,68,69,79,86,98],"ul",{},[70,71,72,73,78],"li",{},"Cement-plant ",[74,75,77],"a",{"href":76},"\u002Fglossary\u002Fkiln-inlet-ring-snowman","kiln-inlet snowman"," removal during planned outages",[70,80,81,85],{},[74,82,84],{"href":83},"\u002Fglossary\u002Frecovery-boiler","Recovery-boiler"," post-water-wash inspection cleaning",[70,87,88,92,93,97],{},[74,89,91],{"href":90},"\u002Fglossary\u002Fhopper","Hopper"," and ",[74,94,96],{"href":95},"\u002Fglossary\u002Fsilo","silo"," clearance after bridging-induced shutdowns",[70,99,100],{},"Cleaning of partially-blocked equipment too restricted for water-jet access",[62,102,104],{"id":103},"hse-concerns","HSE concerns",[67,106,107,110,113,116,119],{},[70,108,109],{},"Confined-space entry",[70,111,112],{},"Elevated working positions",[70,114,115],{},"Fall-of-material risk above operators",[70,117,118],{},"Heat exposure",[70,120,121],{},"Repetitive-strain injury from sustained manual work",[55,123,124,125,129],{},"The economic and HSE case against manual lancing is the underlying motivation for installing automated cleaning systems including ",[74,126,128],{"href":127},"\u002Fglossary\u002Fsonic-horn","sonic horns"," — every avoided manual-lancing campaign removes an HSE-exposed operator-hour from the maintenance budget.",[62,131,133],{"id":132},"related-terms","Related terms",[67,135,136,142,148],{},[70,137,138],{},[74,139,141],{"href":140},"\u002Fglossary\u002Fwater-lance","Water lance",[70,143,144],{},[74,145,147],{"href":146},"\u002Fglossary\u002Fhydroblasting-offline","Hydroblasting (offline)",[70,149,150],{},[74,151,153],{"href":152},"\u002Fglossary\u002Fwhip-hammer","Whip hammer",{"title":155,"searchDepth":156,"depth":156,"links":157},"",2,[158,159,160],{"id":64,"depth":156,"text":65},{"id":103,"depth":156,"text":104},{"id":132,"depth":156,"text":133},"alternative-cleaning","Manual lancing is operator-performed cleaning of industrial equipment using handheld rods, lances, water jets or hammers. In modern industrial practice it is the cleaning method of last resort — performed when automated cleaning systems have failed to prevent build-up that now requires direct human intervention.","md",{},true,"\u002Fglossary\u002Fmanual-lancing",[168,169,170],"water-lance","hydroblasting-offline","whip-hammer",{"title":172,"description":173},"Manual lancing — handheld cleaning by operator-wielded rods or jets","Manual lancing is operator-performed cleaning using handheld rods, lances or jets. Labour-intensive, HSE-burdened; the cleaning method of last resort in most industrial settings.",[175],{"title":176,"url":177},"Wikipedia — Soot blower","https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSoot_blower","glossary\u002Fmanual-lancing","zJchHG60v5fKidTvMTfCh6AUkQrlIDmmimXwh2jSRTY",[181,266,351],{"id":182,"title":141,"aliases":183,"body":186,"category":161,"description":253,"extension":163,"meta":254,"navigation":165,"path":140,"relatedTerms":255,"seo":259,"sources":262,"stem":264,"term":141,"__hash__":265},"glossary\u002Fglossary\u002Fwater-lance.md",[184,185],"water lances","hydraulic lance",{"type":52,"value":187,"toc":249},[188,200,204,224,230,232],[55,189,190,191,194,195,199],{},"A ",[58,192,193],{},"water lance"," is a handheld or fixed water-jet cleaning device used either during boiler outages (handheld manual variant) or, in fixed mechanised designs (notably from Bergemann), during operation on selected slag-melt zones. The fixed mechanised water lance differs from a ",[74,196,198],{"href":197},"\u002Fglossary\u002Fwater-cannon","water cannon"," primarily in lance length, reach and shot pattern — both technologies rely on thermal-shock cracking of slag.",[62,201,203],{"id":202},"where-water-lances-are-used","Where water lances are used",[67,205,206,212,218],{},[70,207,208,211],{},[58,209,210],{},"Outage cleaning"," — handheld lances projecting water into boiler internals after shutdown",[70,213,214,217],{},[58,215,216],{},"Slag-prone zones during operation"," — fixed mechanised lances on coal-fired boiler furnace exits and reheater inlet zones",[70,219,220,223],{},[58,221,222],{},"Cement-plant preheater cleaning"," — manual water-lancing during planned outages on kiln-inlet build-up",[55,225,226,229],{},[74,227,228],{"href":127},"Sonic horns"," reduce the frequency of water-lancing campaigns by preventing the accumulation that water lances are deployed to remove.",[62,231,133],{"id":132},[67,233,234,239,245],{},[70,235,236],{},[74,237,238],{"href":197},"Water cannon",[70,240,241],{},[74,242,244],{"href":243},"\u002Fglossary\u002Fwaterwall","Waterwall",[70,246,247],{},[74,248,47],{"href":166},{"title":155,"searchDepth":156,"depth":156,"links":250},[251,252],{"id":202,"depth":156,"text":203},{"id":132,"depth":156,"text":133},"A water lance is a handheld or fixed water-jet cleaning device used either during boiler outages (handheld manual variant) or, in fixed mechanised designs (notably from Bergemann), during operation on selected slag-melt zones. The fixed mechanised water lance differs from a water cannon primarily in lance length, reach and shot pattern — both technologies rely on thermal-shock cracking of slag.",{},[256,257,258],"water-cannon","waterwall","manual-lancing",{"title":260,"description":261},"Water lance — handheld or fixed water jet for boiler cleaning","A water lance is a handheld or fixed water-jet cleaning device used during boiler outages or, in fixed designs, for slag-melt zones during operation.",[263],{"title":176,"url":177},"glossary\u002Fwater-lance","_UHuQxNAjCSzXAcvoICoPcNf5xX6t9fPdViJEE5XCkQ",{"id":267,"title":147,"aliases":268,"body":272,"category":161,"description":336,"extension":163,"meta":337,"navigation":165,"path":146,"relatedTerms":338,"seo":341,"sources":344,"stem":348,"term":349,"__hash__":350},"glossary\u002Fglossary\u002Fhydroblasting-offline.md",[269,270,271],"hydroblasting","hydro blasting","high-pressure water cleaning",{"type":52,"value":273,"toc":331},[274,280,284,302,306,312,314],[55,275,276,279],{},[58,277,278],{},"Hydroblasting"," uses high-pressure water (typically 700–2,000 bar at the nozzle) to remove hardened deposits from boiler tubes, heat-exchanger surfaces, and process-equipment internals during planned outages. Hydroblasting is the standard offline cleaning method for deposits beyond the reach of online cleaning systems.",[62,281,283],{"id":282},"industrial-uses","Industrial uses",[67,285,286,293,296,299],{},[70,287,288,292],{},[74,289,291],{"href":290},"\u002Fglossary\u002Fwater-wash-recovery-boiler","Recovery-boiler water washes"," — periodic deep cleaning campaigns",[70,294,295],{},"Heat-exchanger off-line tube cleaning",[70,297,298],{},"Refining furnace radiant-tube decoking adjunct",[70,300,301],{},"Cement-plant preheater and kiln-inlet manual cleaning",[62,303,305],{"id":304},"position-vs-sonic-horns","Position vs sonic horns",[55,307,308,309,311],{},"Hydroblasting is offline (requires shutdown), labour-intensive, and addresses deposits that have already consolidated into hard, bonded layers. ",[74,310,228],{"href":127}," are online, automatic, and prevent the consolidation that would otherwise require hydroblasting. Most plants run both: continuous acoustic cleaning extends the interval between hydroblasting campaigns, often doubling the campaign-to-campaign run time.",[62,313,133],{"id":132},[67,315,316,321,327],{},[70,317,318],{},[74,319,320],{"href":290},"Water wash (recovery boiler)",[70,322,323],{},[74,324,326],{"href":325},"\u002Fglossary\u002Fdry-ice-blasting","Dry-ice blasting",[70,328,329],{},[74,330,47],{"href":166},{"title":155,"searchDepth":156,"depth":156,"links":332},[333,334,335],{"id":282,"depth":156,"text":283},{"id":304,"depth":156,"text":305},{"id":132,"depth":156,"text":133},"Hydroblasting uses high-pressure water (typically 700–2,000 bar at the nozzle) to remove hardened deposits from boiler tubes, heat-exchanger surfaces, and process-equipment internals during planned outages. Hydroblasting is the standard offline cleaning method for deposits beyond the reach of online cleaning systems.",{},[339,340,258],"water-wash-recovery-boiler","dry-ice-blasting",{"title":342,"description":343},"Hydroblasting — offline high-pressure water cleaning of boiler internals","Hydroblasting uses high-pressure water (typically 700–2,000 bar) to remove hardened deposits from boiler tubes and process equipment during planned outages.",[345],{"title":346,"url":347},"Wikipedia — Water blasting","https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FWater_blasting","glossary\u002Fhydroblasting-offline","Hydroblasting (offline cleaning)","SNPynlovB3D-a9r5kizOqPr6G0FG4mMnqAd33DsRTjM",{"id":352,"title":153,"aliases":353,"body":356,"category":469,"description":470,"extension":163,"meta":471,"navigation":165,"path":152,"relatedTerms":472,"seo":475,"sources":478,"stem":482,"term":153,"__hash__":483},"glossary\u002Fglossary\u002Fwhip-hammer.md",[354,355],"sledge hammer (silo)","manual hammering",{"type":52,"value":357,"toc":463},[358,381,385,396,400,425,429,440,442],[55,359,360,363,364,367,368,370,371,375,376,380],{},[58,361,362],{},"Whip hammering"," is the legacy manual technique of striking the outside of a ",[74,365,366],{"href":90},"hopper",", ",[74,369,96],{"href":95}," or ",[74,372,374],{"href":373},"\u002Fglossary\u002Fbunker-coal-bunker","bunker"," with a sledge or weighted hammer to dislodge material ",[74,377,379],{"href":378},"\u002Fglossary\u002Fbridging","bridges",". It survives in many older plants as the first-line response to a stuck discharge.",[62,382,384],{"id":383},"why-it-persists","Why it persists",[67,386,387,390,393],{},[70,388,389],{},"Zero capital investment",[70,391,392],{},"Immediate availability when more sophisticated devices fail",[70,394,395],{},"Familiar to maintenance crews",[62,397,399],{"id":398},"why-it-should-be-retired","Why it should be retired",[67,401,402,407,413,419],{},[70,403,404,406],{},[58,405,104],{}," — operators working in confined or elevated spaces, occasionally with falling-material risk",[70,408,409,412],{},[58,410,411],{},"Structural damage"," — repeated impacts at the same location dent and crack the vessel",[70,414,415,418],{},[58,416,417],{},"Local effect only"," — energy reaches only material near the impact point; deeper bridges unaffected",[70,420,421,424],{},[58,422,423],{},"Symptom not cause"," — does nothing to prevent the next bridge",[62,426,428],{"id":427},"the-migration-path","The migration path",[55,430,431,432,434,435,439],{},"Modern plant upgrades replace whip hammering with continuous ",[74,433,128],{"href":127}," on the discharge cone, supplemented where needed by a small number of ",[74,436,438],{"href":437},"\u002Fglossary\u002Fair-cannon-air-blaster","air cannons"," for restart-after-shutdown duty. The combined system delivers vastly better availability, zero ongoing operator exposure, and no structural damage to the vessel.",[62,441,133],{"id":132},[67,443,444,448,453,458],{},[70,445,446],{},[74,447,91],{"href":90},[70,449,450],{},[74,451,452],{"href":95},"Silo",[70,454,455],{},[74,456,457],{"href":378},"Bridging",[70,459,460],{},[74,461,462],{"href":127},"Sonic horn",{"title":155,"searchDepth":156,"depth":156,"links":464},[465,466,467,468],{"id":383,"depth":156,"text":384},{"id":398,"depth":156,"text":399},{"id":427,"depth":156,"text":428},{"id":132,"depth":156,"text":133},"hoppers-silos","Whip hammering is the legacy manual technique of striking the outside of a hopper, silo or bunker with a sledge or weighted hammer to dislodge material bridges. It survives in many older plants as the first-line response to a stuck discharge.",{},[366,96,473,474],"bridging","sonic-horn",{"title":476,"description":477},"Whip hammer — legacy manual technique for breaking silo bridges","Whip hammering is the manual technique of striking the outside of a hopper or silo with a sledge to dislodge material bridges. A legacy practice with documented safety and structural concerns.",[479],{"title":480,"url":481},"Bulk-online — Caving, Ratholing in Clinker Silos","https:\u002F\u002Fwww.bulk-online.com\u002Fen\u002Fforum\u002Fsilos-hoppers-bins-bunkers-domes\u002Fcaving-ratholing-clinker-silos","glossary\u002Fwhip-hammer","yL6TPlEQtdkjFxAq-bZy1D7EF4eczCl2BKUSftUPBr4",1782613719112]