[{"data":1,"prerenderedAt":1151},["ShallowReactive",2],{"site-footer-common":3,"glossary:filter-cake":45,"glossary-related:filter-cake":226},{"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":206,"description":207,"extension":208,"meta":209,"navigation":210,"path":211,"relatedTerms":212,"seo":217,"sources":220,"stem":224,"term":47,"__hash__":225},"glossary\u002Fglossary\u002Ffilter-cake.md","Filter cake",[49,50],"dust cake","filter cake layer",{"type":52,"value":53,"toc":199},"minimark",[54,72,77,126,130,166,173,177],[55,56,57,60,61,66,67,71],"p",{},[58,59,47],"strong",{}," is the dust layer that progressively builds up on the gas-side surface of a ",[62,63,65],"a",{"href":64},"\u002Fglossary\u002Ffilter-bag","filter bag"," during normal operation. Counter-intuitively, the cake itself performs most of the fine-particle filtration: a fresh bag with no cake has higher penetration than a bag with a developed cake. The art of baghouse operation is to maintain a useful cake without letting it grow so thick that ",[62,68,70],{"href":69},"\u002Fglossary\u002Fdifferential-pressure-baghouse","differential pressure"," climbs unsustainably.",[73,74,76],"h2",{"id":75},"cake-life-cycle","Cake life cycle",[78,79,80,87,93,114,120],"ol",{},[81,82,83,86],"li",{},[58,84,85],{},"Conditioning"," — a new or freshly cleaned bag is \"pre-coated\" by initial dust loading",[81,88,89,92],{},[58,90,91],{},"Steady-state filtration"," — the cake builds, ΔP rises slowly, outlet remains low",[81,94,95,98,99,103,104,108,109,113],{},[58,96,97],{},"Cleaning cycle"," — ",[62,100,102],{"href":101},"\u002Fglossary\u002Fpulse-jet-cleaning-cycle","pulse-jet",", ",[62,105,107],{"href":106},"\u002Fglossary\u002Freverse-air-baghouse","reverse-air"," or ",[62,110,112],{"href":111},"\u002Fglossary\u002Fshaker-baghouse","shaker"," releases part of the cake",[81,115,116,119],{},[58,117,118],{},"Residual cake"," — a thin layer remains; ΔP resets but not to zero",[81,121,122,125],{},[58,123,124],{},"Long-term drift"," — over many cycles, residual cake gradually thickens, eventually requiring offline cleaning or bag change",[73,127,129],{"id":128},"how-cake-behaviour-varies","How cake behaviour varies",[131,132,133,139,149,160],"ul",{},[81,134,135,138],{},[58,136,137],{},"Coal fly ash"," — releases relatively cleanly under pulse-jet",[81,140,141,144,145],{},[58,142,143],{},"Cement kiln dust"," — can be sticky, prone to ",[62,146,148],{"href":147},"\u002Fglossary\u002Fcake-bridging-cake-blinding","bridging",[81,150,151,154,155,159],{},[58,152,153],{},"Wet or hygroscopic dusts"," — cake hardens; classic ",[62,156,158],{"href":157},"\u002Fglossary\u002Fbag-blinding","bag-blinding"," risk",[81,161,162,165],{},[58,163,164],{},"Sub-micron biomass \u002F WtE ash"," — fine cake bonds firmly to bag surface",[55,167,168,172],{},[62,169,171],{"href":170},"\u002Fglossary\u002Fsonic-horn","Sonic horns"," supplement primary cleaning by addressing residual cake before it consolidates.",[73,174,176],{"id":175},"related-terms","Related terms",[131,178,179,184,189,194],{},[81,180,181],{},[62,182,183],{"href":64},"Filter bag",[81,185,186],{},[62,187,188],{"href":147},"Cake bridging \u002F cake blinding",[81,190,191],{},[62,192,193],{"href":157},"Bag blinding",[81,195,196],{},[62,197,198],{"href":69},"Differential pressure (baghouse)",{"title":200,"searchDepth":201,"depth":201,"links":202},"",2,[203,204,205],{"id":75,"depth":201,"text":76},{"id":128,"depth":201,"text":129},{"id":175,"depth":201,"text":176},"baghouse","Filter cake is the dust layer that progressively builds up on the gas-side surface of a filter bag during normal operation. Counter-intuitively, the cake itself performs most of the fine-particle filtration: a fresh bag with no cake has higher penetration than a bag with a developed cake. The art of baghouse operation is to maintain a useful cake without letting it grow so thick that differential pressure climbs unsustainably.","md",{},true,"\u002Fglossary\u002Ffilter-cake",[213,214,158,215,216],"filter-bag","cake-bridging-cake-blinding","differential-pressure-baghouse","pulse-jet-cleaning-cycle",{"title":218,"description":219},"Filter cake — the dust layer that performs most of the filtration","Filter cake is the dust layer that builds up on the surface of a baghouse filter bag. The cake itself does most of the fine-particle filtration; cleaning balances cake build-up against ΔP.",[221],{"title":222,"url":223},"Wikipedia — Filter cake","https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFilter_cake","glossary\u002Ffilter-cake","i7km6mXaz39JRBZKEHi5VmJkbsQH_9lsoFWRNtoUZrI",[227,465,657,809,986],{"id":228,"title":183,"aliases":229,"body":232,"category":206,"description":448,"extension":208,"meta":449,"navigation":210,"path":64,"relatedTerms":450,"seo":456,"sources":459,"stem":463,"term":183,"__hash__":464},"glossary\u002Fglossary\u002Ffilter-bag.md",[230,231],"filter bags","bag (baghouse)",{"type":52,"value":233,"toc":443},[234,255,259,272,371,375,408,410],[55,235,236,237,239,240,244,245,249,250,254],{},"A ",[58,238,65],{}," is the cylindrical fabric sock that traps particulate inside a ",[62,241,243],{"href":242},"\u002Fglossary\u002Ffabric-filter","fabric filter",". Bags are typically 120–300 mm in diameter and 2–10 m long, suspended vertically from the ",[62,246,248],{"href":247},"\u002Fglossary\u002Ftubesheet","tubesheet",", supported internally by a wire ",[62,251,253],{"href":252},"\u002Fglossary\u002Fbag-cage","bag cage"," and sealed at the top by a snap-band collar.",[73,256,258],{"id":257},"media-selection","Media selection",[55,260,261,262,266,267,271],{},"Bag media must match the application temperature, gas chemistry, dust load and cleaning system. See ",[62,263,265],{"href":264},"\u002Fglossary\u002Fp84-nomex-ryton-filter-media","P84 \u002F Nomex \u002F Ryton filter media"," and ",[62,268,270],{"href":269},"\u002Fglossary\u002Fptfe-membrane-filter-bag","PTFE membrane filter bag",".",[273,274,275,291],"table",{},[276,277,278],"thead",{},[279,280,281,285,288],"tr",{},[282,283,284],"th",{},"Material",[282,286,287],{},"Max continuous temp",[282,289,290],{},"Typical use",[292,293,294,306,317,328,339,350,361],"tbody",{},[279,295,296,300,303],{},[297,298,299],"td",{},"Polyester",[297,301,302],{},"135 °C",[297,304,305],{},"Cement, food, light industrial",[279,307,308,311,314],{},[297,309,310],{},"Polypropylene",[297,312,313],{},"90 °C",[297,315,316],{},"Wet chemistry, washdown",[279,318,319,322,325],{},[297,320,321],{},"Nomex (aramid)",[297,323,324],{},"200 °C",[297,326,327],{},"Asphalt, metallurgical",[279,329,330,333,336],{},[297,331,332],{},"P84 (polyimide)",[297,334,335],{},"240 °C",[297,337,338],{},"Cement, biomass",[279,340,341,344,347],{},[297,342,343],{},"Ryton (PPS)",[297,345,346],{},"190 °C",[297,348,349],{},"Coal-fired utility, sulphur-rich",[279,351,352,355,358],{},[297,353,354],{},"Fibreglass",[297,356,357],{},"260 °C",[297,359,360],{},"Cement, WtE high-temperature",[279,362,363,366,368],{},[297,364,365],{},"PTFE (Teflon)",[297,367,357],{},[297,369,370],{},"Aggressive chemistry, sub-mg outlet",[73,372,374],{"id":373},"failure-modes","Failure modes",[131,376,377,384,390,396,402],{},[81,378,379,383],{},[58,380,381],{},[62,382,193],{"href":157}," — pore choking that raises ΔP",[81,385,386,389],{},[58,387,388],{},"Abrasion"," — wear at the bottom of the bag from falling cake",[81,391,392,395],{},[58,393,394],{},"Thermal degradation"," — exceeding the media's continuous-service rating",[81,397,398,401],{},[58,399,400],{},"Hydrolysis \u002F acid attack"," — at the cold end below the acid dew point",[81,403,404,407],{},[58,405,406],{},"Cage corrosion"," — failure of the cage allows bag collapse",[73,409,176],{"id":175},[131,411,412,417,423,428,433,439],{},[81,413,414],{},[62,415,416],{"href":242},"Fabric filter",[81,418,419],{},[62,420,422],{"href":421},"\u002Fglossary\u002Fbaghouse","Baghouse",[81,424,425],{},[62,426,427],{"href":252},"Bag cage",[81,429,430],{},[62,431,432],{"href":269},"PTFE-membrane filter bag",[81,434,435],{},[62,436,438],{"href":437},"\u002Fglossary\u002Ffibreglass-filter-bag","Fibreglass filter bag",[81,440,441],{},[62,442,193],{"href":157},{"title":200,"searchDepth":201,"depth":201,"links":444},[445,446,447],{"id":257,"depth":201,"text":258},{"id":373,"depth":201,"text":374},{"id":175,"depth":201,"text":176},"A filter bag is the cylindrical fabric sock that traps particulate inside a fabric filter. Bags are typically 120–300 mm in diameter and 2–10 m long, suspended vertically from the tubesheet, supported internally by a wire bag cage and sealed at the top by a snap-band collar.",{},[451,206,452,453,454,455,158],"fabric-filter","bag-cage","ptfe-membrane-filter-bag","fibreglass-filter-bag","p84-nomex-ryton-filter-media",{"title":457,"description":458},"Filter bag — the cylindrical fabric element of a baghouse","A filter bag is the cylindrical fabric sock that traps particulate inside a fabric filter. Media selection depends on temperature, gas chemistry, dust load and cleaning cycle.",[460],{"title":461,"url":462},"Wikipedia — Baghouse","https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBaghouse","glossary\u002Ffilter-bag","c5qm1D9QdtuF4K2dtGAjDJ_qJJmuF0iuEqVTUcRXqww",{"id":466,"title":188,"aliases":467,"body":471,"category":206,"description":644,"extension":208,"meta":645,"navigation":210,"path":147,"relatedTerms":646,"seo":649,"sources":652,"stem":654,"term":655,"__hash__":656},"glossary\u002Fglossary\u002Fcake-bridging-cake-blinding.md",[468,469,470],"cake bridging","cake blinding","bag bridging",{"type":52,"value":472,"toc":637},[473,487,490,496,500,512,516,588,592,612,614],[55,474,475,266,478,480,481,484,485,271],{},[58,476,477],{},"Cake bridging",[58,479,469],{}," are two related but distinct failure modes of ",[62,482,483],{"href":211},"filter cake"," inside a ",[62,486,206],{"href":421},[73,488,477],{"id":489},"cake-bridging",[55,491,492,493,495],{},"Cake bridging is when the accumulated dust cake on adjacent ",[62,494,230],{"href":64}," merges across the gap between them, locking the bags together into a connected mass. The bags can no longer move independently under cleaning pulses; the pulse-jet pressure is absorbed by the joint cake instead of releasing it. ΔP climbs, primary cleaning becomes ineffective, and the only remedy without intervention is taking the compartment offline.",[73,497,499],{"id":498},"cake-blinding","Cake blinding",[55,501,502,503,507,508,511],{},"Cake blinding (or ",[504,505,506],"em",{},"bag blinding",") is when particulate works its way into the bag pore structure itself, embedding in the fabric and choking the open pore area. Unlike surface cake, blinding cannot be released by any normal cleaning cycle — the dust is ",[504,509,510],{},"inside"," the medium. Blinding is the dominant cause of premature bag replacement.",[73,513,515],{"id":514},"causes","Causes",[273,517,518,531],{},[276,519,520],{},[279,521,522,525,528],{},[282,523,524],{},"Cause",[282,526,527],{},"Bridging",[282,529,530],{},"Blinding",[292,532,533,543,552,561,570,579],{},[279,534,535,538,541],{},[297,536,537],{},"Bag spacing too close",[297,539,540],{},"✓",[297,542],{},[279,544,545,548,550],{},[297,546,547],{},"Hygroscopic \u002F wet dust",[297,549,540],{},[297,551,540],{},[279,553,554,557,559],{},[297,555,556],{},"Acid dew-point excursion",[297,558],{},[297,560,540],{},[279,562,563,566,568],{},[297,564,565],{},"Tar \u002F oil aerosol in gas",[297,567],{},[297,569,540],{},[279,571,572,575,577],{},[297,573,574],{},"Sticky biomass \u002F WtE ash",[297,576,540],{},[297,578,540],{},[279,580,581,584,586],{},[297,582,583],{},"Insufficient cleaning intensity",[297,585,540],{},[297,587],{},[73,589,591],{"id":590},"prevention","Prevention",[131,593,594,601,604,607],{},[81,595,596,597,600],{},"Correct media selection (e.g. ",[62,598,599],{"href":269},"PTFE membrane"," for sticky chemistry)",[81,602,603],{},"Adequate cleaning intensity matched to dust load",[81,605,606],{},"Compartment isolation when dew-point excursions are imminent",[81,608,609,611],{},[62,610,171],{"href":170}," to break early bridging before it consolidates",[73,613,176],{"id":175},[131,615,616,620,624,628,632],{},[81,617,618],{},[62,619,47],{"href":211},[81,621,622],{},[62,623,193],{"href":157},[81,625,626],{},[62,627,198],{"href":69},[81,629,630],{},[62,631,183],{"href":64},[81,633,634],{},[62,635,636],{"href":170},"Sonic horn",{"title":200,"searchDepth":201,"depth":201,"links":638},[639,640,641,642,643],{"id":489,"depth":201,"text":477},{"id":498,"depth":201,"text":499},{"id":514,"depth":201,"text":515},{"id":590,"depth":201,"text":591},{"id":175,"depth":201,"text":176},"Cake bridging and cake blinding are two related but distinct failure modes of filter cake inside a baghouse.",{},[647,158,215,213,648],"filter-cake","sonic-horn",{"title":650,"description":651},"Cake bridging and cake blinding — what they are and how to prevent them","Cake bridging is dust connecting adjacent bags so the cleaning pulse no longer reaches the surface. Cake blinding is pore choking that raises ΔP and reduces filtration.",[653],{"title":461,"url":462},"glossary\u002Fcake-bridging-cake-blinding","Cake bridging and cake blinding","FuKPxZMIyacCwBs8Wwtwxlq5Lkffh4vEFUalqNBwMe4",{"id":658,"title":193,"aliases":659,"body":662,"category":206,"description":799,"extension":208,"meta":800,"navigation":210,"path":157,"relatedTerms":801,"seo":802,"sources":805,"stem":807,"term":193,"__hash__":808},"glossary\u002Fglossary\u002Fbag-blinding.md",[660,661],"filter bag blinding","bag binding",{"type":52,"value":663,"toc":793},[664,680,684,727,731,752,756,769,771],[55,665,666,668,669,672,673,676,677,679],{},[58,667,193],{}," is the choking of a ",[62,670,671],{"href":64},"filter bag's"," pore structure by dust that has worked its way into the fabric itself rather than remaining on the surface. Once embedded, the dust cannot be released by any normal ",[62,674,675],{"href":101},"cleaning cycle","; ",[62,678,70],{"href":69}," rises and stays high. Blinding is the leading cause of premature bag replacement on most industrial baghouses.",[73,681,683],{"id":682},"when-blinding-accelerates","When blinding accelerates",[131,685,686,692,698,704,715],{},[81,687,688,691],{},[58,689,690],{},"Acid dew-point excursions"," — condensed acid bonds dust into the fabric",[81,693,694,697],{},[58,695,696],{},"Hygroscopic dust"," — moisture pickup turns surface dust into a wet paste",[81,699,700,703],{},[58,701,702],{},"Tar or oil aerosol"," in the inlet gas",[81,705,706,714],{},[58,707,708,709,713],{},"Excessive bag-velocity (",[62,710,712],{"href":711},"\u002Fglossary\u002Fair-to-cloth-ratio","air-to-cloth ratio",")"," — forces particulate into the pores",[81,716,717],{},[58,718,719,720,108,724],{},"Sub-micron ash from ",[62,721,723],{"href":722},"\u002Fglossary\u002Fwaste-to-energy","WtE",[62,725,726],{"href":722},"biomass",[73,728,730],{"id":729},"mitigation","Mitigation",[131,732,733,736,743,746],{},[81,734,735],{},"Maintain gas temperature above the acid dew point (typically 130–150 °C)",[81,737,738,739,742],{},"Use ",[62,740,741],{"href":269},"PTFE-membrane bags"," for surface filtration where chemistry warrants",[81,744,745],{},"Right-size the baghouse so air-to-cloth ratio stays moderate",[81,747,738,748,751],{},[62,749,750],{"href":170},"sonic horns"," to keep cake from consolidating into the medium before each pulse",[73,753,755],{"id":754},"distinguishing-from-cake-bridging","Distinguishing from cake bridging",[55,757,758,760,761,764,765,768],{},[62,759,477],{"href":147}," is a ",[504,762,763],{},"cake-on-surface"," problem and is fixable with better cleaning. Blinding is ",[504,766,767],{},"dust-in-fabric"," and is not fixable without bag replacement.",[73,770,176],{"id":175},[131,772,773,777,781,785,789],{},[81,774,775],{},[62,776,188],{"href":147},[81,778,779],{},[62,780,47],{"href":211},[81,782,783],{},[62,784,183],{"href":64},[81,786,787],{},[62,788,198],{"href":69},[81,790,791],{},[62,792,636],{"href":170},{"title":200,"searchDepth":201,"depth":201,"links":794},[795,796,797,798],{"id":682,"depth":201,"text":683},{"id":729,"depth":201,"text":730},{"id":754,"depth":201,"text":755},{"id":175,"depth":201,"text":176},"Bag blinding is the choking of a filter bag's pore structure by dust that has worked its way into the fabric itself rather than remaining on the surface. Once embedded, the dust cannot be released by any normal cleaning cycle; differential pressure rises and stays high. Blinding is the leading cause of premature bag replacement on most industrial baghouses.",{},[214,647,213,215,648],{"title":803,"description":804},"Bag blinding — pore choking that destroys baghouse performance","Bag blinding is the choking of filter-bag pores by dust embedded within the medium. It raises differential pressure permanently and is the leading cause of premature bag replacement.",[806],{"title":461,"url":462},"glossary\u002Fbag-blinding","-0FrhXk5-j24S5xuHXl-Fl5tAcqRGunLiGuaHiN9eWQ",{"id":810,"title":198,"aliases":811,"body":816,"category":206,"description":974,"extension":208,"meta":975,"navigation":210,"path":69,"relatedTerms":976,"seo":977,"sources":980,"stem":984,"term":198,"__hash__":985},"glossary\u002Fglossary\u002Fdifferential-pressure-baghouse.md",[812,813,814,815],"baghouse ΔP","baghouse delta-P","filter ΔP","baghouse dP",{"type":52,"value":817,"toc":968},[818,837,841,920,924,930,934,939,941],[55,819,820,823,824,826,827,831,832,108,834,271],{},[58,821,822],{},"Differential pressure (ΔP)"," across a ",[62,825,206],{"href":421}," is the pressure drop between the dirty-gas inlet ",[62,828,830],{"href":829},"\u002Fglossary\u002Fplenum-clean-side-dirty-side","plenum"," and the clean-gas outlet plenum. ΔP is the headline operational KPI for any fabric filter: too low signals broken bags or open compartments, too high signals fouling, ",[62,833,148],{"href":147},[62,835,836],{"href":157},"blinding",[73,838,840],{"id":839},"typical-operating-bands","Typical operating bands",[273,842,843,859],{},[276,844,845],{},[279,846,847,850,853,856],{},[282,848,849],{},"Application",[282,851,852],{},"Normal ΔP",[282,854,855],{},"Alarm",[282,857,858],{},"Trip",[292,860,861,878,894,907],{},[279,862,863,869,872,875],{},[297,864,865,866],{},"Cement ",[62,867,102],{"href":868},"\u002Fglossary\u002Fpulse-jet-baghouse",[297,870,871],{},"8–15 mbar (3–6 inWG)",[297,873,874],{},"20 mbar",[297,876,877],{},"25 mbar",[279,879,880,885,888,891],{},[297,881,882,883],{},"Coal utility ",[62,884,107],{"href":106},[297,886,887],{},"10–18 mbar",[297,889,890],{},"22 mbar",[297,892,893],{},"28 mbar",[279,895,896,899,902,904],{},[297,897,898],{},"WtE pulse-jet",[297,900,901],{},"12–20 mbar",[297,903,877],{},[297,905,906],{},"32 mbar",[279,908,909,912,915,918],{},[297,910,911],{},"Light industrial pulse-jet",[297,913,914],{},"5–12 mbar",[297,916,917],{},"18 mbar",[297,919,877],{},[73,921,923],{"id":922},"why-operators-obsess-over-δp","Why operators obsess over ΔP",[55,925,926,927,929],{},"Every additional mbar of ΔP costs ID-fan power and reduces plant throughput. A 5-mbar ΔP rise on a large coal-fired baghouse can mean hundreds of kW of additional fan power and the loss of a few MW of derate-induced generation. Sustained high ΔP also accelerates ",[62,928,506],{"href":157}," and triggers premature bag-change campaigns.",[73,931,933],{"id":932},"how-sonic-horns-reduce-δp","How sonic horns reduce ΔP",[55,935,936,938],{},[62,937,171],{"href":170}," keep the bag-surface cake from consolidating into the medium between primary cleaning cycles. Pulse-jet, reverse-air or shaker cleaning then has less work to do and removes a larger fraction of the cake. Plants retrofitting sonic horns commonly see 2–5 mbar ΔP reduction and 25–40% extension of bag life.",[73,940,176],{"id":175},[131,942,943,947,951,955,959,964],{},[81,944,945],{},[62,946,416],{"href":242},[81,948,949],{},[62,950,422],{"href":421},[81,952,953],{},[62,954,47],{"href":211},[81,956,957],{},[62,958,193],{"href":157},[81,960,961],{},[62,962,963],{"href":101},"Pulse-jet cleaning cycle",[81,965,966],{},[62,967,636],{"href":170},{"title":200,"searchDepth":201,"depth":201,"links":969},[970,971,972,973],{"id":839,"depth":201,"text":840},{"id":922,"depth":201,"text":923},{"id":932,"depth":201,"text":933},{"id":175,"depth":201,"text":176},"Differential pressure (ΔP) across a baghouse is the pressure drop between the dirty-gas inlet plenum and the clean-gas outlet plenum. ΔP is the headline operational KPI for any fabric filter: too low signals broken bags or open compartments, too high signals fouling, bridging or blinding.",{},[451,206,647,158,216,648],{"title":978,"description":979},"Differential pressure (baghouse ΔP) — the headline KPI for fabric filters","Differential pressure (ΔP) across a baghouse is the pressure drop between dirty and clean plenums. It is the headline operational KPI: too low signals broken bags, too high signals fouling.",[981],{"title":982,"url":983},"Sly Inc — How to Monitor Baghouse Health Through Differential Pressure","https:\u002F\u002Fwww.slyinc.com\u002Fblog\u002Fhow-to-monitor-baghouse-health-through-differential-pressure\u002F","glossary\u002Fdifferential-pressure-baghouse","5pIag8o_scInCb_UF6sVlqlEgtkNoIR5M4nNm3qHxk4",{"id":987,"title":963,"aliases":988,"body":992,"category":206,"description":1138,"extension":208,"meta":1139,"navigation":210,"path":101,"relatedTerms":1140,"seo":1142,"sources":1145,"stem":1149,"term":963,"__hash__":1150},"glossary\u002Fglossary\u002Fpulse-jet-cleaning-cycle.md",[989,990,991],"pulse cycle","pulse-jet cycle","bag pulsing",{"type":52,"value":993,"toc":1132},[994,1008,1012,1076,1080,1086,1095,1098,1102,1107,1109],[55,995,996,997,1000,1001,1003,1004,1007],{},"The ",[58,998,999],{},"pulse-jet cleaning cycle"," is the firing pattern of brief compressed-air pulses that clean the ",[62,1002,230],{"href":64}," of a ",[62,1005,1006],{"href":868},"pulse-jet baghouse",". The cycle is controlled by a sequencer (often a baghouse PLC) and is tuned through three primary variables.",[73,1009,1011],{"id":1010},"cycle-parameters","Cycle parameters",[273,1013,1014,1027],{},[276,1015,1016],{},[279,1017,1018,1021,1024],{},[282,1019,1020],{},"Parameter",[282,1022,1023],{},"Typical range",[282,1025,1026],{},"Effect of increasing",[292,1028,1029,1040,1054,1065],{},[279,1030,1031,1034,1037],{},[297,1032,1033],{},"Pulse duration",[297,1035,1036],{},"100–300 ms",[297,1038,1039],{},"More cleaning per pulse; more bag flex \u002F wear",[279,1041,1042,1045,1048],{},[297,1043,1044],{},"Pulse interval (continuous mode)",[297,1046,1047],{},"10–120 s per row",[297,1049,1050,1051,1053],{},"Less ",[62,1052,483],{"href":211}," build-up; more compressed-air use",[279,1055,1056,1059,1062],{},[297,1057,1058],{},"ΔP set-point (on-demand mode)",[297,1060,1061],{},"12–18 mbar",[297,1063,1064],{},"Cleaning fires only when ΔP rises; minimum bag wear",[279,1066,1067,1070,1073],{},[297,1068,1069],{},"Pulse pressure",[297,1071,1072],{},"4–7 bar",[297,1074,1075],{},"Stronger pulse; deeper penetration into the bag",[73,1077,1079],{"id":1078},"continuous-vs-on-demand-cleaning","Continuous vs on-demand cleaning",[55,1081,1082,1085],{},[58,1083,1084],{},"Continuous cycling"," runs the cleaning sequence on a fixed schedule regardless of dust load. Simple, but wastes air and bag life on lightly-loaded periods.",[55,1087,1088,1091,1092,1094],{},[58,1089,1090],{},"On-demand cleaning"," fires only when ",[62,1093,70],{"href":69}," crosses a set-point. Minimises wear and air use but can fall behind when dust load spikes.",[55,1096,1097],{},"Most modern baghouses run a hybrid: on-demand control with a maximum-interval limit to prevent indefinite skipping.",[73,1099,1101],{"id":1100},"how-sonic-horns-interact-with-the-pulse-cycle","How sonic horns interact with the pulse cycle",[55,1103,1104,1106],{},[62,1105,171],{"href":170}," running continuously between pulse events keep cake from consolidating, which lets the pulse-jet system run a less aggressive cycle for the same ΔP. The combined OPEX saving (lower compressed-air use, longer bag life) is the headline argument for retrofitting horns onto an existing pulse-jet baghouse.",[73,1108,176],{"id":175},[131,1110,1111,1116,1120,1124,1128],{},[81,1112,1113],{},[62,1114,1115],{"href":868},"Pulse-jet baghouse",[81,1117,1118],{},[62,1119,183],{"href":64},[81,1121,1122],{},[62,1123,47],{"href":211},[81,1125,1126],{},[62,1127,198],{"href":69},[81,1129,1130],{},[62,1131,636],{"href":170},{"title":200,"searchDepth":201,"depth":201,"links":1133},[1134,1135,1136,1137],{"id":1010,"depth":201,"text":1011},{"id":1078,"depth":201,"text":1079},{"id":1100,"depth":201,"text":1101},{"id":175,"depth":201,"text":176},"The pulse-jet cleaning cycle is the firing pattern of brief compressed-air pulses that clean the filter bags of a pulse-jet baghouse. The cycle is controlled by a sequencer (often a baghouse PLC) and is tuned through three primary variables.",{},[1141,213,647,215,648],"pulse-jet-baghouse",{"title":1143,"description":1144},"Pulse-jet cleaning cycle — pulse duration, interval and on-demand tuning","The pulse-jet cleaning cycle is the firing pattern of compressed-air pulses across a baghouse. Tuned by pulse duration, interval and ΔP set-point to balance cleaning against bag wear.",[1146],{"title":1147,"url":1148},"Micronics — Sonic Horns for Baghouses","https:\u002F\u002Fwww.micronicsinc.com\u002Fdry-baghouse-filtration\u002Fparts\u002Fbaghouse-accessories\u002Fsonic-horns\u002F","glossary\u002Fpulse-jet-cleaning-cycle","xTWyvWFeqO0jdzrM9_SIfkzZDlTkLFSKbX2ESybPeAA",1782613721197]