{ "id": 16869, "date": "2025-06-13T07:25:01", "date_gmt": "2025-06-13T07:25:01", "guid": { "rendered": "https:\/\/slewingbearings.com\/etude-de-cas-donner-les-moyens-a-un-geant-de-la-pate-a-papier-et-du-papier-au-bresil\/" }, "modified": "2025-06-13T07:25:01", "modified_gmt": "2025-06-13T07:25:01", "slug": "etude-de-cas-donner-les-moyens-a-un-geant-de-la-pate-a-papier-et-du-papier-au-bresil", "status": "publish", "type": "post", "link": "https:\/\/slewingbearings.com\/fr\/etude-de-cas-donner-les-moyens-a-un-geant-de-la-pate-a-papier-et-du-papier-au-bresil\/", "title": { "rendered": "\u00c9TUDE DE CAS : Donner les moyens \u00e0 un g\u00e9ant de la p\u00e2te \u00e0 papier et du papier au Br\u00e9sil" }, "excerpt": { "rendered": "

Project: Central-Drive Sludge Thickener for Industrial Wastewater Treatment Le d\u00e9fi : vaincre la friction et la corrosion chimique Au c\u0153ur d’une grande usine de p\u00e2te \u00e0 papier et de papier au Br\u00e9sil, un \u00e9paississeur de boues essentiel \u00e9tait confront\u00e9 \u00e0 une grave crise op\u00e9rationnelle. Les eaux us\u00e9es industrielles, charg\u00e9es de concentrations \u00e9lev\u00e9es de produits chimiques corrosifs et de charges de boues in\u00e9gales, avaient endommag\u00e9 le palier pivotant existant. En moins d’un an, l’unit\u00e9 a succomb\u00e9 \u00e0 la corrosion interne et \u00e0 une d\u00e9faillance des engrenages caus\u00e9e par une charge excentrique. \u00ab Chaque jour d’arr\u00eat repr\u00e9sentait des milliers de tonnes d’eaux us\u00e9es non trait\u00e9es, exposant l’installation \u00e0 un risque \u00e9lev\u00e9 d’amendes environnementales s\u00e9v\u00e8res et de paralysie op\u00e9rationnelle. \u00bb La solution ZZ : con\u00e7ue pour la r\u00e9silience Apr\u00e8s avoir re\u00e7u les commentaires du client via M. Rinaldo (d’une soci\u00e9t\u00e9 commerciale au Br\u00e9sil), l’\u00e9quipe d’ing\u00e9nieurs ZZ a men\u00e9 une analyse approfondie de l’environnement hautement humide et corrosif caract\u00e9ristique des sites industriels br\u00e9siliens. Nous avons d\u00e9velopp\u00e9 une solution rotative sur mesure : Material Upgrade: We replaced standard 50Mn with high-performance 42CrMo4 Alloy Steel, significantly enhancing the bearing’s fatigue life under heavy eccentric loads. Renforcement de la d\u00e9fense : Pour lutter contre l’ environnement agressif environnement, nous avons appliqu\u00e9 un sp\u00e9cialis\u00e9 Zn anticorrosion rev\u00eatement et int\u00e9gr\u00e9 le syst\u00e8me exclusif \u00e0 double l\u00e8vre d’\u00e9tanch\u00e9it\u00e9 de ZZ, emp\u00eachant efficacement les eaux us\u00e9es acides et les contaminants de a26> p\u00e9n\u00e9trer dans le canal d’\u00e9coulement. Transmission de pr\u00e9cision : Les engrenages internes ont subi un trempage par induction, garantissant un couple constant et r\u00e9gulier, m\u00eame \u00e0 des vitesses extr\u00eamement basses de 0,15 tr\/min. Le r\u00e9sultat : une stabilit\u00e9 24 heures sur 24, 7 jours sur 7, dans les conditions difficiles du Br\u00e9sil : Depuis son installation en 2024, le palier \u00e0 rotule ZZ a fonctionn\u00e9 sans interruption pendant plus de 18 000 heures dans le climat chaud et humide du Br\u00e9sil, sans aucun arr\u00eat impr\u00e9vu. Le responsable technique du client a d\u00e9clar\u00e9 : \u00ab La solution ZZ n’a pas seulement r\u00e9solu notre casse-t\u00eate en mati\u00e8re de maintenance, elle nous a \u00e9galement apport\u00e9 la fiabilit\u00e9 n\u00e9cessaire pour r\u00e9pondre en toute confiance aux audits environnementaux stricts. \u00bb<\/p>\n", "protected": false }, "author": 1, "featured_media": 16861, "comment_status": "open", "ping_status": "open", "sticky": false, "template": "", "format": "standard", "meta": { "content-type": "", "footnotes": "" }, "categories": [ 1196, 306 ], "tags": [ 1202 ], "class_list": [ "post-16869", "post", "type-post", "status-publish", "format-standard", "has-post-thumbnail", "hentry", "category-blog-fr", "category-support-technique", "tag-industriel-eaux-usees-traitement" ], "yoast_head": "\n\u00c9TUDE DE CAS : Donner les moyens \u00e0 un g\u00e9ant de la p\u00e2te \u00e0 papier et du papier au Br\u00e9sil - ZZ Group<\/title>\n<meta name=\"description\" content=\"Depuis son installation en 2024, le ZZ palier pivotant a fonctionn\u00e9 sans interruption pendant plus de a10> 18 000 heures dans le climat chaud et humide du Br\u00e9sil.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/slewingbearings.com\/fr\/etude-de-cas-donner-les-moyens-a-un-geant-de-la-pate-a-papier-et-du-papier-au-bresil\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u00c9TUDE DE CAS : Donner les moyens \u00e0 un g\u00e9ant de la p\u00e2te \u00e0 papier et du papier au Br\u00e9sil - 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