[{"data":1,"prerenderedAt":414},["ShallowReactive",2],{"site-footer-common":3,"glossary:dust-catcher":45,"glossary-related:dust-catcher":184},{"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":166,"description":167,"extension":168,"meta":169,"navigation":170,"path":171,"relatedTerms":172,"seo":175,"sources":178,"stem":182,"term":47,"__hash__":183},"glossary\u002Fglossary\u002Fdust-catcher.md","Dust catcher",[49,50],"blast furnace dust catcher","inertial separator",{"type":52,"value":53,"toc":159},"minimark",[54,63,68,124,128,141,145],[55,56,57,58,62],"p",{},"A ",[59,60,61],"strong",{},"dust catcher"," is a large vertical inertial separator at the front of a blast-furnace gas-cleaning train. Top-gas from the blast furnace enters at the top, the gas slows as it expands into the large vessel, and coarse particulate falls out under gravity into a discharge hopper at the base.",[64,65,67],"h2",{"id":66},"where-it-sits-in-the-cleaning-train","Where it sits in the cleaning train",[69,70,71,84],"table",{},[72,73,74],"thead",{},[75,76,77,81],"tr",{},[78,79,80],"th",{},"Step",[78,82,83],{},"Equipment",[85,86,87,95,107],"tbody",{},[75,88,89,93],{},[90,91,92],"td",{},"1 — coarse separation",[90,94,47],{},[75,96,97,100],{},[90,98,99],{},"2 — fine wet cleaning",[90,101,102],{},[103,104,106],"a",{"href":105},"\u002Fglossary\u002Fventuri-scrubber","Venturi scrubber",[75,108,109,112],{},[90,110,111],{},"3 — final polish",[90,113,114,115,119,120],{},"Wet ",[103,116,118],{"href":117},"\u002Fglossary\u002Fwet-esp","ESP"," or ",[103,121,123],{"href":122},"\u002Fglossary\u002Fbaghouse","baghouse",[64,125,127],{"id":126},"cleaning-the-dust-catcher","Cleaning the dust catcher",[55,129,130,131,135,136,140],{},"The dust-catcher hopper accumulates large quantities of coarse iron-bearing dust and is prone to ",[103,132,134],{"href":133},"\u002Fglossary\u002Fbridging","bridging",". ",[103,137,139],{"href":138},"\u002Fglossary\u002Fsonic-horn","Sonic horns"," at the hopper outlet keep the dust flowing and reduce interruptions to the gas-cleaning train.",[64,142,144],{"id":143},"related-terms","Related terms",[146,147,148,155],"ul",{},[149,150,151],"li",{},[103,152,154],{"href":153},"\u002Fglossary\u002Fcyclone-separator","Cyclone separator",[149,156,157],{},[103,158,106],{"href":105},{"title":160,"searchDepth":161,"depth":161,"links":162},"",2,[163,164,165],{"id":66,"depth":161,"text":67},{"id":126,"depth":161,"text":127},{"id":143,"depth":161,"text":144},"hrsg-gas-path","A dust catcher is a large vertical inertial separator at the front of a blast-furnace gas-cleaning train. Top-gas from the blast furnace enters at the top, the gas slows as it expands into the large vessel, and coarse particulate falls out under gravity into a discharge hopper at the base.","md",{},true,"\u002Fglossary\u002Fdust-catcher",[173,174],"cyclone-separator","venturi-scrubber",{"title":176,"description":177},"Dust catcher — primary inertial separator for blast-furnace gas cleaning","A dust catcher is a large vertical inertial separator used in blast-furnace gas cleaning to remove coarse particulate before downstream wet scrubbers or fabric filters.",[179],{"title":180,"url":181},"Wikipedia — Blast furnace","https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBlast_furnace","glossary\u002Fdust-catcher","-2irlo-5xmwPedwppOylqMoBqM-sMGMBGnulBHFd59o",[185,324],{"id":186,"title":154,"aliases":187,"body":191,"category":166,"description":307,"extension":168,"meta":308,"navigation":170,"path":153,"relatedTerms":309,"seo":315,"sources":318,"stem":322,"term":154,"__hash__":323},"glossary\u002Fglossary\u002Fcyclone-separator.md",[188,189,190],"cyclone","cyclones","gas cyclone",{"type":52,"value":192,"toc":301},[193,204,208,239,243,263,267,272,274],[55,194,57,195,198,199,203],{},[59,196,197],{},"cyclone separator"," removes particulate from a gas stream by centrifugal force: gas enters tangentially at the top of a vertical cylinder, spirals downward, and exits axially at the top through an inner pipe (vortex finder); heavier particles are thrown outward to the wall, slide down the conical bottom, and discharge through the ",[103,200,202],{"href":201},"\u002Fglossary\u002Fcyclone-dipleg","dipleg"," below.",[64,205,207],{"id":206},"where-cyclones-are-used","Where cyclones are used",[146,209,210,217,224,236],{},[149,211,212,216],{},[103,213,215],{"href":214},"\u002Fglossary\u002Fcfb-boiler","CFB boiler"," primary separators — large-diameter, high-temperature",[149,218,219,223],{},[103,220,222],{"href":221},"\u002Fglossary\u002Fpreheater-cyclone","Cement preheater cyclones"," — multi-stage gas-to-meal heat exchange",[149,225,226,227,230,231,235],{},"Pre-cleaners ahead of ",[103,228,229],{"href":122},"baghouses"," and ",[103,232,234],{"href":233},"\u002Fglossary\u002Felectrostatic-precipitator","ESPs"," — knock out coarse dust to reduce downstream load",[149,237,238],{},"Process gas separation in chemical and refining duty",[64,240,242],{"id":241},"cyclone-fouling","Cyclone fouling",[146,244,245,251,257],{},[149,246,247,250],{},[59,248,249],{},"Wall build-up"," — dust accretes on the wall and gradually narrows the gas path; flow re-organises and efficiency drops",[149,252,253,256],{},[59,254,255],{},"Dipleg pluggage"," — separated material backs up in the dipleg, eventually re-entraining",[149,258,259,262],{},[59,260,261],{},"Vortex finder fouling"," — alters internal swirl pattern",[64,264,266],{"id":265},"cleaning","Cleaning",[55,268,269,271],{},[103,270,139],{"href":138}," installed on the cyclone shell or dipleg keep wall deposits from consolidating. On cement preheater cyclones particularly, sonic horns are the standard preventive against the coatings that form under alternative-fuel firing.",[64,273,144],{"id":143},[146,275,276,282,287,291,296],{},[149,277,278],{},[103,279,281],{"href":280},"\u002Fglossary\u002Fmulti-cyclone-multiclone","Multi-cyclone \u002F multiclone",[149,283,284],{},[103,285,286],{"href":201},"Cyclone dipleg",[149,288,289],{},[103,290,215],{"href":214},[149,292,293],{},[103,294,295],{"href":221},"Preheater cyclone",[149,297,298],{},[103,299,300],{"href":138},"Sonic horn",{"title":160,"searchDepth":161,"depth":161,"links":302},[303,304,305,306],{"id":206,"depth":161,"text":207},{"id":241,"depth":161,"text":242},{"id":265,"depth":161,"text":266},{"id":143,"depth":161,"text":144},"A cyclone separator removes particulate from a gas stream by centrifugal force: gas enters tangentially at the top of a vertical cylinder, spirals downward, and exits axially at the top through an inner pipe (vortex finder); heavier particles are thrown outward to the wall, slide down the conical bottom, and discharge through the dipleg below.",{},[310,311,312,313,314],"multi-cyclone-multiclone","cyclone-dipleg","cfb-boiler","preheater-cyclone","sonic-horn",{"title":316,"description":317},"Cyclone separator — centrifugal particulate-removal device","A cyclone separator removes particulate from a gas stream by centrifugal force. Wall build-up and re-entrainment from the dipleg are the dominant operational issues.",[319],{"title":320,"url":321},"Wikipedia — Cyclonic separation","https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCyclonic_separation","glossary\u002Fcyclone-separator","q8drrAFN5eVbx6KETEHT-VxRny2DelPTSLsYv0Fj2dU",{"id":325,"title":106,"aliases":326,"body":328,"category":166,"description":399,"extension":168,"meta":400,"navigation":170,"path":105,"relatedTerms":401,"seo":405,"sources":408,"stem":412,"term":106,"__hash__":413},"glossary\u002Fglossary\u002Fventuri-scrubber.md",[327],"venturi wet scrubber",{"type":52,"value":329,"toc":394},[330,335,339,356,360,376,378],[55,331,57,332,334],{},[59,333,106],{}," is a high-energy wet scrubber that atomises scrubbing liquid into a high-velocity throat where the liquid droplets intercept and trap fine particulate. The cleaned gas-and-droplet stream then passes to a downstream cyclonic separator that knocks out the wet droplets.",[64,336,338],{"id":337},"applications","Applications",[146,340,341,347,350,353],{},[149,342,343,344,346],{},"Blast-furnace gas cleaning (after the ",[103,345,61],{"href":171},", before wet ESP)",[149,348,349],{},"Hazardous-waste incinerator off-gas",[149,351,352],{},"Chemical and pharmaceutical process exhaust where sticky aerosols defeat dry collection",[149,354,355],{},"Pulp-and-paper recovery-boiler vent-stack scrubbing",[64,357,359],{"id":358},"sonic-horn-relevance","Sonic-horn relevance",[55,361,362,363,367,368,371,372,375],{},"Venturi scrubbers themselves are continuously wetted and rarely benefit from acoustic cleaning. However, the ",[364,365,366],"em",{},"upstream"," dust catcher and the ",[364,369,370],{},"downstream"," sludge handling hoppers do — ",[103,373,374],{"href":138},"sonic horns"," at those points prevent the sludge bridging that interrupts scrubber operation.",[64,377,144],{"id":143},[146,379,380,384,389],{},[149,381,382],{},[103,383,47],{"href":171},[149,385,386],{},[103,387,388],{"href":117},"Wet ESP (WESP)",[149,390,391],{},[103,392,393],{"href":233},"Electrostatic precipitator",{"title":160,"searchDepth":161,"depth":161,"links":395},[396,397,398],{"id":337,"depth":161,"text":338},{"id":358,"depth":161,"text":359},{"id":143,"depth":161,"text":144},"A Venturi scrubber is a high-energy wet scrubber that atomises scrubbing liquid into a high-velocity throat where the liquid droplets intercept and trap fine particulate. The cleaned gas-and-droplet stream then passes to a downstream cyclonic separator that knocks out the wet droplets.",{},[402,403,404],"dust-catcher","wet-esp","electrostatic-precipitator",{"title":406,"description":407},"Venturi scrubber — high-energy wet scrubber for fine particulate","A Venturi scrubber atomises scrubbing liquid into a high-velocity throat where it intercepts and traps fine particulate. Common on blast-furnace gas cleaning and chemical off-gas duty.",[409],{"title":410,"url":411},"Wikipedia — Venturi scrubber","https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FVenturi_scrubber","glossary\u002Fventuri-scrubber","yVNOyd7QrxVArzFVSZWaxygqCFuoXilVu3dv33FwFNs",1782613743231]