{"id":5334,"date":"2019-08-07T10:30:46","date_gmt":"2019-08-07T02:30:46","guid":{"rendered":"https:\/\/www.jxscmachine.com\/?post_type=new&p=5334"},"modified":"2019-08-07T11:16:11","modified_gmt":"2019-08-07T03:16:11","slug":"alimentateur-a-tablier-a-usage-intensif","status":"publish","type":"new","link":"https:\/\/www.jxscmachine.com\/fr\/new\/heavy-duty-apron-feeder\/","title":{"rendered":"Comment prolonger la dur\u00e9e de vie de l'alimentateur \u00e0 tablier \u00e0 haut rendement ?"},"content":{"rendered":"
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La mine de cuivre de Chengmenshan est une mine de cuivre \u00e0 ciel ouvert du Jiangxi Copper Group. Il existe deux syst\u00e8mes de traitement des minerais, qui utilisent tous un alimentateur \u00e0 tablier lourd pour transf\u00e9rer les minerais vers le convoyeur \u00e0 bande.<\/p>\n

\u00c0 mesure que la capacit\u00e9 de production de la mine augmente, l'usure de la plaque de protection de l'alimentateur \u00e0 tablier lourd s'accro\u00eet, ce qui r\u00e9duit sa dur\u00e9e de vie. Le remplacement de la plaque de protection constitue la principale charge de travail de maintenance de l'alimentateur \u00e0 tablier lourd, et les temps d'arr\u00eat li\u00e9s \u00e0 la maintenance limitent l'efficacit\u00e9 du travail.<\/p>\n

Rejoignez-nous pour savoir comment prolonger la dur\u00e9e de vie des distributeurs \u00e0 tablier.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n

Sp\u00e9cifications des alimentateurs \u00e0 tablier et caract\u00e9ristiques des mat\u00e9riaux d'alimentation<\/h2>\n\t
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Mod\u00e8le d'alimentateur \u00e0 tablier : 1200 mm\u00d76048 mm
\nLargeur de la cha\u00eene : 1200 mm
\nVitesse d'alimentation : (0,064\uff5e0,1) m\/s (contr\u00f4le de la fr\u00e9quence)
\nCapacit\u00e9 : 200\uff5e350 t\/h
\nTaille de l'alimentation : \u2264300 mm
\nDensit\u00e9 apparente du mat\u00e9riau : 1960 kg \/ m3
\nMod\u00e8le de moteur : YP2-180M-4, 18,5 kW
\nMod\u00e8le de r\u00e9ducteur : M5RHT60, rapport de vitesse : 436.87.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n

Analyse de la situation et des probl\u00e8mes existants<\/h2>\n\t
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Les deux plaques de protection lat\u00e9rales de la benne \u00e0 minerai sont en acier r\u00e9sistant \u00e0 l'usure et leur dur\u00e9e de vie est d'environ 6 mois.
\nNotre ing\u00e9nieur a constat\u00e9 que la partie du boulon de fixation de la plaque de garde \u00e9tait tr\u00e8s us\u00e9e et qu'il y avait un risque de chute de la plaque de garde, ce qui entra\u00eenait un risque pour le processus suivant.<\/p>\n

D'apr\u00e8s l'analyse, la protection n'est pas sollicit\u00e9e de mani\u00e8re uniforme et l'usure de la partie inf\u00e9rieure est plus importante que celle de la partie sup\u00e9rieure.
\nLe mouvement relatif du minerai et de la plaque de garde g\u00e9n\u00e8re un frottement de glissement et une force de pression qui provoquent l'usure de la plaque de garde.
\nEn outre, lorsque le minerai tombe du tas vers le fond, le minerai du fond se d\u00e9place plus rapidement et re\u00e7oit une force de pression plus importante. Selon le principe de la force et de la r\u00e9action, le fond du bouclier est \u00e9cras\u00e9 par le minerai. La force et la friction \u00e9tant \u00e9galement plus importantes, le fond de la plaque de protection s'use plus s\u00e9rieusement.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n

Solutions<\/h2>\n\t
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(1) Ajouter le dispositif de protection des boulons. Un bossage rond de 20 mm d'\u00e9paisseur est pr\u00e9vu \u00e0 chaque emplacement de trou de boulon pour prot\u00e9ger les boulons.<\/p>\n

(2) Utilisation intelligente de la bande r\u00e9sistante \u00e0 l'usure (Fig. 1). En fonction de la trajectoire d'usure du minerai, ajouter une bande r\u00e9sistante \u00e0 l'usure sur le panneau (470 mm \u00d7 30 mm \u00d7 40 mm), et ajouter 3 bandes r\u00e9sistantes \u00e0 l'usure sur le fond (1075 mm \u00d7 30 mm \u00d7 40 mm, 400 mm \u00d7 30 mm \u00d7 40 mm, 250 mm \u00d7 30 mm \u00d7 40 mm).<\/p>\n

Lorsque l'alimentateur \u00e0 plaques lourdes fonctionne, l'espace form\u00e9 entre les bandes d'usure est rempli de minerai fin et de petit minerai. Ces petits minerais et la plaque de garde sont relativement statiques, formant une couche protectrice de la plaque, r\u00e9duisant l'usure caus\u00e9e par la friction directe entre la plaque de garde et le gros minerai, prolongeant ainsi la dur\u00e9e de vie de la plaque de garde (Fig. 2).<\/p>\n\n\t\t<\/div>\n\t<\/div>\n\n\t

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\"structure<\/div>\n\t\t<\/figure>\n\t<\/div>\n\n\t
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\"Direction<\/div>\n\t\t<\/figure>\n\t<\/div>\n

Comparaison de la dur\u00e9e de vie avant et apr\u00e8s l'optimisation<\/h2>\n\t
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Gr\u00e2ce \u00e0 l'optimisation structurelle des plaques de protection des deux c\u00f4t\u00e9s de la benne \u00e0 minerai de la mine, le probl\u00e8me de l'usure in\u00e9gale et de l'usure importante de la plaque de protection a \u00e9t\u00e9 compl\u00e8tement r\u00e9solu, et la dur\u00e9e de vie de la plaque de protection optimis\u00e9e est pass\u00e9e de 6 mois \u00e0 24 mois (figure 3).<\/p>\n\n\t\t<\/div>\n\t<\/div>\n

Conclusion<\/h2>\n\t
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Le projet a obtenu de bons r\u00e9sultats, a r\u00e9solu le probl\u00e8me de la courte dur\u00e9e de vie de la plaque de protection, a r\u00e9duit la fr\u00e9quence de l'entretien et de la r\u00e9paration de l'alimentateur \u00e0 tablier lourd, a r\u00e9duit la pression du travail du personnel d'entretien et a am\u00e9lior\u00e9 l'efficacit\u00e9 op\u00e9rationnelle de l'\u00e9quipement et la stabilit\u00e9 du syst\u00e8me de production.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n\n\t

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\"installation<\/div>\n\t\t<\/figure>\n\t<\/div>\n
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JXSC, 35 ans de fabrication d'\u00e9quipements miniers, fournit types d'alimentateurs de minerais<\/a> dans le monde entier (alimentateur \u00e0 tablier, alimentateur vibrant, alimentateur \u00e0 glissi\u00e8re, alimentateur \u00e0 disque, etc.)
\nNous sommes l\u00e0 pour vous aider<\/a> \u21d2 s\u00e9lection de machines mini\u00e8res, solutions de traitement des minerais, optimisation des usines de traitement.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

\u00c9tude de cas : Jiangxi Copper Group mine syst\u00e8me de transfert, probl\u00e8mes d'usure et d'efficacit\u00e9. Rejoignez-nous pour savoir comment prolonger la dur\u00e9e de vie d'un alimentateur \u00e0 tablier.<\/p>","protected":false},"author":1,"featured_media":5358,"parent":0,"menu_order":307,"comment_status":"open","ping_status":"open","template":"","format":"standard","meta":{"_acf_changed":false,"ngg_post_thumbnail":0,"footnotes":""},"categories":[],"tags":[],"class_list":["post-5334","new","type-new","status-publish","format-standard","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"\nCase Study | How to Prolong the Heavy Duty Apron Feeder Service Life?<\/title>\n<meta name=\"description\" content=\"Case Study: Jiangxi Copper Group mine transfer system, wear and efficiency problems. 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