{"id":9941,"date":"2022-01-05T09:56:00","date_gmt":"2022-01-05T01:56:00","guid":{"rendered":"https:\/\/www.zonelenviro.com\/comment-determiner-le-rapport-air-tissu-en-fonction-des-conditions-de-fonctionnement-des-depoussiereurs\/"},"modified":"2026-04-21T14:42:39","modified_gmt":"2026-04-21T06:42:39","slug":"comment-determiner-le-rapport-air-tissu-en-fonction-des-conditions-de-fonctionnement-des-depoussiereurs","status":"publish","type":"post","link":"https:\/\/www.zonelenviro.com\/fr\/comment-determiner-le-rapport-air-tissu-en-fonction-des-conditions-de-fonctionnement-des-depoussiereurs\/","title":{"rendered":"Comment d\u00e9terminer le rapport air\/tissu en fonction des conditions de fonctionnement des d\u00e9poussi\u00e9reurs ?"},"content":{"rendered":"\t\t
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Comment dimensionner le rapport air\/tissu en fonction des conditions de fonctionnement du bo\u00eetier du filtre \u00e0 sac \u00e0 poussi\u00e8re\u00a0?<\/b><\/h2>

\u00a0<\/span><\/p>

Les utilisateurs finaux sont parfois confus quant \u00e0 la conception du rapport air\/tissu du<\/span> d\u00e9poussi\u00e9reur \u00e0 sac filtrant<\/span><\/a>Les fabricants de d\u00e9poussi\u00e9reurs proposent des rapports air\/tissu diff\u00e9rents, car les conditions de fonctionnement sont identiques. Certains mod\u00e8les sont con\u00e7us \u00e0 partir de l’exp\u00e9rience, d’autres en fonction du budget, et certains se contentent de proposer une liste pour diff\u00e9rents types de d\u00e9poussi\u00e9rage. Mais sur quelle base th\u00e9orique repose le choix de ce rapport air\/tissu\u00a0? Zonel Filtech apporte la r\u00e9ponse suivante \u00e0 cette question.<\/span><\/p>

Supposons que le rapport air\/tissu soit Qt\u00a0:<\/span>
<\/span>Qt = Qn * C1*C2*C3*C4*C5<\/span><\/p>

Qn est le rapport air\/tissu standard, qui est li\u00e9 au type de particule et \u00e0 ses propri\u00e9t\u00e9s de coh\u00e9rence, en gros\u00a0:<\/span>
<\/span>La sublimation des m\u00e9taux ferreux et non ferreux, le charbon actif choisit 1,2 m\/min ;<\/span>
<\/span>L’air poussi\u00e9reux issu de la production de coke, les r\u00e9sidus volatils, les poudres m\u00e9talliques (polissage, etc.), l’oxydation du m\u00e9tal sont s\u00e9lectionn\u00e9s \u00e0 1,7 m\/min ;<\/span>
<\/span>La vitesse de d\u00e9placement des poussi\u00e8res d’alumine, de ciment, de charbon, de chaux et de minerais est de 2,0 m\/min.<\/span>
<\/span>Un air poussi\u00e9reux similaire peut donc d\u00e9cider en fonction de ce qui pr\u00e9c\u00e8de.<\/span><\/p>

C1 est l’indice du type de purge\u00a0:<\/span>
<\/span>Je choisis la m\u00e9thode de purge par jet puls\u00e9\u00a0:<\/span>
<\/span>sacs \u00e0 poussi\u00e8re en tissu filtrant tiss\u00e9<\/span><\/a>, C1 choisir 1.0;<\/span>
<\/span>sacs \u00e0 poussi\u00e8re en tissu filtrant non tiss\u00e9<\/span><\/a>, C1 choisir 1.1.<\/span>
<\/span>Je choisis la purge par soufflage invers\u00e9 plus secousse m\u00e9canique, le C1 choisi 0,1~0,85\u00a0;<\/span>
<\/span>Si la purge par soufflage invers\u00e9 uniquement, le C1 choisir 0,55~0,7.<\/span><\/p>

C2 est l’indice relatif \u00e0 la teneur en poussi\u00e8re \u00e0 l’entr\u00e9e\u00a0:<\/span>
<\/span>Si la teneur en poussi\u00e8re \u00e0 l’entr\u00e9e est de 20 g\/m3, le C2 choisit 0,95 ;<\/span>
<\/span>Si la teneur en poussi\u00e8re \u00e0 l’entr\u00e9e est de 40 g\/m3, le C2 choisit 0,90 ;<\/span>
<\/span>Si la teneur en poussi\u00e8re \u00e0 l’entr\u00e9e est de 60 g\/m3, le C2 choisit 0,87 ;<\/span>
<\/span>Si la teneur en poussi\u00e8re \u00e0 l’entr\u00e9e est de 80 g\/m3, le C2 choisit 0,85 ;<\/span>
<\/span>Si la teneur en poussi\u00e8re \u00e0 l’entr\u00e9e est de 100 g\/m3, le C2 choisit 0,825 ;<\/span>
<\/span>Si la teneur en poussi\u00e8re \u00e0 l’entr\u00e9e est de 150 g\/m3, le C2 choisit environ 0,80 ;<\/span><\/p>

C3 est l’indice li\u00e9 \u00e0 la taille des particules\/au diam\u00e8tre m\u00e9dian\u00a0:<\/span>
<\/span>Si le diam\u00e8tre m\u00e9dian de la particule :<\/span>
<\/span>> 100 microns, choisir 1,2~1,4\u00a0;<\/span>
<\/span>100~50 microns, choisir 1,1\u00a0;<\/span>
<\/span>50 \u00e0 10 microns, choisir 1,0\u00a0;<\/span>
<\/span>10~3 microns, choisissez 0,9\u00a0;<\/span>
<\/span><3 microns, choisir 0,9~0,7<\/span><\/p>

C4 est l’indice li\u00e9 \u00e0 la temp\u00e9rature de l’air poussi\u00e9reux\u00a0:<\/span>
<\/span>Pour la temp\u00e9rature de l’air poussi\u00e9reux \u00e0 (degr\u00e9s C) :<\/span>
<\/span>20, choisissez 1.0 ;<\/span>
<\/span>40, choisissez 0,9 ;<\/span>
<\/span>60, choisissez 0,84 ;<\/span>
<\/span>80, choisissez 0,78 ;<\/span>
<\/span>100, choisissez 0,75 ;<\/span>
<\/span>120, choisissez 0,73 ;<\/span>
<\/span>140, choisissez 0,72 ;<\/span>
<\/span>>160, peut choisir 0,70 ou moins correctement.<\/span><\/p>

C5 est l’indice relatif \u00e0 l’\u00e9mission\u00a0:<\/span>
<\/span>Si la demande d’\u00e9mission est inf\u00e9rieure \u00e0 30 mg\/m3, le C5 choisit 1,0\u00a0;<\/span>
<\/span>Si la demande d’\u00e9mission est inf\u00e9rieure \u00e0 10 mg\/m3, le C5 choisit 0,95\u00a0;<\/span><\/p>

Par exemple:<\/span>
<\/span>Conception pour la collecte des poussi\u00e8res de four \u00e0 ciment, avec d\u00e9poussi\u00e9reur \u00e0 sacs filtrants non tiss\u00e9s Nomex, temp\u00e9rature de fonctionnement \u00e0 170 degr\u00e9s C, teneur en poussi\u00e8res \u00e0 l’entr\u00e9e de 50 g\/m3, taille m\u00e9diane des particules de 10 microns, exigence d’\u00e9mission inf\u00e9rieure \u00e0 30 mg\/m3.<\/span>
<\/span>Donc, le Qt=2*1,1*0,88*0,9*0,7*1=1,21m\/min.<\/span>
<\/span>Lors de la conception du DC, ce rapport air\/tissu peut \u00eatre pris en compte.<\/span><\/p>

\u00c9dit\u00e9 par ZONEL FILTECH<\/span><\/p>

\u00a0<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

Les utilisateurs finaux sont parfois confus quant \u00e0 la conception du rapport air\/tissu propos\u00e9e par les fabricants de d\u00e9poussi\u00e9reurs \u00e0 sac filtrant, car, pour une m\u00eame condition de fonctionnement, le rapport air\/tissu peut varier d’un fabricant \u00e0 l’autre.<\/p>\n","protected":false},"author":1,"featured_media":9942,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[123],"tags":[],"class_list":["post-9941","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualites-du-secteur"],"_links":{"self":[{"href":"https:\/\/www.zonelenviro.com\/fr\/wp-json\/wp\/v2\/posts\/9941","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zonelenviro.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zonelenviro.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zonelenviro.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zonelenviro.com\/fr\/wp-json\/wp\/v2\/comments?post=9941"}],"version-history":[{"count":5,"href":"https:\/\/www.zonelenviro.com\/fr\/wp-json\/wp\/v2\/posts\/9941\/revisions"}],"predecessor-version":[{"id":9978,"href":"https:\/\/www.zonelenviro.com\/fr\/wp-json\/wp\/v2\/posts\/9941\/revisions\/9978"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.zonelenviro.com\/fr\/wp-json\/wp\/v2\/media\/9942"}],"wp:attachment":[{"href":"https:\/\/www.zonelenviro.com\/fr\/wp-json\/wp\/v2\/media?parent=9941"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zonelenviro.com\/fr\/wp-json\/wp\/v2\/categories?post=9941"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zonelenviro.com\/fr\/wp-json\/wp\/v2\/tags?post=9941"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}