{"id":776,"date":"2015-10-29T10:05:12","date_gmt":"2015-10-29T09:05:12","guid":{"rendered":"https:\/\/www.geha-laverman.com\/?p=776\/"},"modified":"2015-10-29T10:05:12","modified_gmt":"2015-10-29T09:05:12","slug":"het-verhaal-van-een-gebroken-breker","status":"publish","type":"post","link":"https:\/\/www.geha-laverman.com\/fr\/2015\/10\/29\/het-verhaal-van-een-gebroken-breker\/","title":{"rendered":"L'histoire d'un briseur de gr\u00e8ve"},"content":{"rendered":"<p><strong>Outre un bon prix, un d\u00e9lai de livraison court joue un r\u00f4le essentiel. Les arr\u00eats de production doivent \u00eatre \u00e9vit\u00e9s \u00e0 tout moment. Il en va de m\u00eame pour l'entreprise de recyclage Stuer \u00e0 Kruibeke, en Belgique, o\u00f9 nous avons livr\u00e9 un \u00e9chantillon (de r\u00e9vision) solide.<\/strong><!--more--><\/p>\n<p>Stuer poss\u00e8de un concasseur que nous lui avons fourni \u00e0 l'\u00e9poque. Apr\u00e8s plus d'une d\u00e9cennie de bons et loyaux services, le broyeur avait manifestement besoin d'\u00eatre remplac\u00e9.<\/p>\n<p>Mais aucun remplacement n'a \u00e9t\u00e9 pr\u00e9vu, bien qu'une r\u00e9vision particuli\u00e8rement importante ait eu lieu, qui a marqu\u00e9 la deuxi\u00e8me longue vie du broyeur.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-777 aligncenter\" src=\"https:\/\/www.geha-laverman.com\/wp-content\/uploads\/2017\/05\/brekeroudennieuw.png\" alt=\"\" width=\"700\" height=\"380\" \/><\/p>\n<p>L'op\u00e9ration ne s'annon\u00e7ait pas facile. D'un commun accord, il a \u00e9t\u00e9 d\u00e9cid\u00e9 de mettre le concasseur pratiquement abandonn\u00e9 hors service pendant la p\u00e9riode des vacances belges, puis de le transf\u00e9rer \u00e0 Pralltec, bas\u00e9 \u00e0 Lengerich, en Allemagne.<\/p>\n<p>Pralltec, depuis plus de cinq ans notre partenaire sp\u00e9cialis\u00e9 dans la r\u00e9vision et le remplacement de concasseurs sur site. Elle construit \u00e9galement des installations compl\u00e8tes cl\u00e9s en main pour le recyclage du verre et du b\u00e9ton, par exemple, avec des volumes de production de 5 \u00e0 500 tonnes par heure, exclusivement sur la base des sp\u00e9cifications et des id\u00e9es du client.<\/p>\n<p>Pralltec a vu de nombreuses opportunit\u00e9s de r\u00e9viser totalement le broyeur. Il s'agissait de remplacer presque tout, \u00e0 l'exception du carter.<\/p>\n<p>Le concasseur a d'abord \u00e9t\u00e9 enti\u00e8rement d\u00e9mont\u00e9. Ensuite, tous les composants d\u00e9mont\u00e9s, tels que le rotor, les roulements, l'arbre du rotor et les prall works, ont \u00e9t\u00e9 minutieusement inspect\u00e9s.<\/p>\n<p>Le rotor a fait l'objet d'une r\u00e9vision compl\u00e8te, avec l'installation d'un nouvel arbre de rotor, \u00e9galement \u00e9quip\u00e9 de nouveaux roulements. Il a \u00e9galement \u00e9t\u00e9 constat\u00e9 que le carter du concasseur devait \u00eatre align\u00e9, puis \u00e9quip\u00e9 d'un blindage compos\u00e9 de plaques d'usure HARDOX 500 \u00e0 l'int\u00e9rieur. Celles-ci ont \u00e9t\u00e9 fabriqu\u00e9es sur mesure dans l'atelier de Geha Laverman \u00e0 Zaandam. Des installations de pralinage enti\u00e8rement nouvelles ont \u00e9galement \u00e9t\u00e9 install\u00e9es. Il a \u00e9galement \u00e9t\u00e9 d\u00e9cid\u00e9 de remplacer l'arri\u00e8re du concasseur.<\/p>\n<p>Des bandes d'impact Magotteaux en MMC (Metal Matrix Composite) ont \u00e9t\u00e9 install\u00e9es dans le rotor. Ce mat\u00e9riau a une dur\u00e9e de vie nettement plus longue que les brides conventionnelles gr\u00e2ce \u00e0 l'utilisation d'inserts en c\u00e9ramique dans l'alliage.<\/p>\n<p>Il va sans dire que l'ext\u00e9rieur du concasseur a re\u00e7u une nouvelle couche de peinture. Apr\u00e8s tout, l'\u0153il a besoin de quelque chose et cela rend le concasseur indiscernable du neuf.<br \/>\nApr\u00e8s exactement quatre semaines - avec de longues journ\u00e9es ! - le broyeur a \u00e9t\u00e9 rendu \u00e0 Stuer et fonctionne comme avant.<\/p>\n<p>Une r\u00e9vision aussi importante que celle d\u00e9crite peut \u00e9videmment \u00eatre \u00e9vit\u00e9e par des contr\u00f4les p\u00e9riodiques. Il y a une diff\u00e9rence entre l'usure et la d\u00e9t\u00e9rioration. Le remplacement des pi\u00e8ces d'usure peut \u00eatre effectu\u00e9 rapidement et sur place. La r\u00e9vision d'un concasseur us\u00e9 prend du temps et, dans la plupart des cas, doit \u00eatre effectu\u00e9e dans un atelier.<\/p>","protected":false},"excerpt":{"rendered":"<p>Outre un bon prix, un d\u00e9lai de livraison court joue un r\u00f4le essentiel. Les arr\u00eats de production doivent \u00eatre \u00e9vit\u00e9s \u00e0 tout moment. Il en va de m\u00eame pour l'entreprise de recyclage Stuer \u00e0 Kruibeke, en Belgique, o\u00f9 nous avons livr\u00e9 un \u00e9chantillon (de r\u00e9vision) solide.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-776","post","type-post","status-publish","format-standard","hentry","category-geen-onderdeel-van-een-categorie"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.1 (Yoast SEO v27.1.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Het verhaal van een gebroken breker - Geha Laverman<\/title>\n<meta name=\"robots\" content=\"noindex, follow\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Het verhaal van een gebroken breker\" \/>\n<meta property=\"og:description\" content=\"Naast een goede prijs speelt een korte levertijd een eminente rol. 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