{"id":6763,"date":"2021-04-04T17:08:16","date_gmt":"2021-04-04T17:08:16","guid":{"rendered":"https:\/\/www.aluminaceramicball.com\/?p=6763"},"modified":"2021-04-15T07:41:16","modified_gmt":"2021-04-15T07:41:16","slug":"comment-choisir-la-taille-la-quantite-de-remplissage-et-le-rapport-des-billes-de-broyage-en-ceramique-dalumine","status":"publish","type":"post","link":"https:\/\/www.aluminaceramicball.com\/fr\/comment-choisir-la-taille-la-quantite-de-remplissage-et-le-rapport-des-billes-de-broyage-en-ceramique-dalumine\/","title":{"rendered":"Comment choisir la taille, la quantit\u00e9 de remplissage et le rapport des billes de broyage en c\u00e9ramique d'alumine ?"},"content":{"rendered":"

Boules de broyage en c\u00e9ramique d'alumine<\/a> ont les caract\u00e9ristiques suivantes : haute r\u00e9sistance, haute duret\u00e9, haute r\u00e9sistance \u00e0 l'usure, haute densit\u00e9, petite taille, r\u00e9sistance aux temp\u00e9ratures \u00e9lev\u00e9es, r\u00e9sistance \u00e0 la corrosion, absence de fer, non polluant, etc., et sont largement utilis\u00e9s dans les c\u00e9ramiques, les gla\u00e7ures, le verre, etc. Le broyage des non-m\u00e9taux est le moyen de broyage des broyeurs \u00e0 billes, des broyeurs \u00e0 pot, des broyeurs \u00e0 vibration, etc. Ses performances sont nettement sup\u00e9rieures \u00e0 celles des cailloux.<\/p>\n

Les billes en c\u00e9ramique d'alumine sont utilis\u00e9es pour le broyage dans un broyeur \u00e0 boulets.<\/h2>\n

Lors de la s\u00e9lection d'un produit, le type de bille de broyage doit \u00eatre consid\u00e9r\u00e9 en fonction de l'incompatibilit\u00e9 du mat\u00e9riau et de la duret\u00e9 Mohs du produit. La duret\u00e9 des billes \u00e0 haute teneur en alumine bille en c\u00e9ramique<\/a> est de 9, et la densit\u00e9 est de 3,6 g\/cm\u00b3, dans le processus de broyage humide, lorsque la quantit\u00e9 de remplissage des billes atteint 55% du volume net du broyeur \u00e0 billes, le meilleur \u00e9tat peut \u00eatre atteint. Le poids des billes dans le broyeur \u00e0 boulets peut \u00eatre estim\u00e9 \u00e0 l'aide d'une formule empirique. Quantit\u00e9 de pierre charg\u00e9e = 3,14X le rayon carr\u00e9 du broyeur \u00e0 billes X la gravit\u00e9 sp\u00e9cifique de la bille X la longueur du broyeur \u00e0 billes X25%*1000<\/p>\n

En ce qui concerne la granulom\u00e9trie de la bille c\u00e9ramique \u00e0 haute teneur en alumine du broyeur \u00e0 billes :<\/h2>\n

En raison des diff\u00e9rents adjuvants de broyage ajout\u00e9s au broyeur \u00e0 boulets, la formule ci-dessus a \u00e9galement chang\u00e9. D'une mani\u00e8re g\u00e9n\u00e9rale, la granulom\u00e9trie initiale des billes du broyeur \u00e0 boulets est la suivante : 30% pour les grosses billes, 40% pour les billes moyennes et 30% pour les petites billes. En pratique, elle d\u00e9pend principalement de la taille des particules du mat\u00e9riau \u00e0 abraser. Le diam\u00e8tre et la vitesse du broyeur \u00e0 billes doivent \u00e9galement \u00eatre pris en compte. Broyeur \u00e0 billes humide Le concassage des mat\u00e9riaux repose principalement sur le broyage plut\u00f4t que sur l'impact. Par cons\u00e9quent, le nombre de grosses billes doit \u00eatre r\u00e9duit de mani\u00e8re appropri\u00e9e, et des billes moyennes et petites doivent \u00eatre utilis\u00e9es pour garantir de bons r\u00e9sultats de broyage. La charge de la bille d\u00e9pend du mod\u00e8le du broyeur \u00e0 billes, de sorte que les r\u00e8gles ci-dessus ne conviennent pas au processus de broyage \u00e0 sec.<\/p>\n

Quels sont les points auxquels il faut pr\u00eater attention lors de l'installation et de l'arr\u00eat de la bille de broyage \u00e0 haute teneur en aluminium ?<\/h2>\n

Les plaques de rev\u00eatement de chaque silo du broyeur \u00e0 boulets sont essentiellement en m\u00e9tal. Lors du chargement des billes dans le broyeur \u00e0 air, il convient d'abord de charger une certaine quantit\u00e9 de mat\u00e9riau (ou de ciment en vrac) pour le tamponner, puis d'installer les billes en c\u00e9ramique afin d'\u00e9viter une chute de hauteur de plus de 3 m\u00e8tres. En effet, la bille en c\u00e9ramique heurte le rev\u00eatement en acier, provoque des microfissures et augmente le taux d'endommagement de la bille en c\u00e9ramique au cours du processus de production. En outre, au cours du processus de production du ciment, si le broyage est arr\u00eat\u00e9 pour des raisons telles que la production et la maintenance, il est n\u00e9cessaire d'\u00e9viter les op\u00e9rations de broyage \u00e0 vide de longue dur\u00e9e sans mat\u00e9riau afin d'\u00e9viter d'endommager la bille \u00e0 forte teneur en aluminium, de raccourcir le cycle de remplissage et de prolonger la dur\u00e9e de vie.<\/p>\n

Voici comment choisir la taille, la quantit\u00e9 de remplissage et la proportion des billes de broyage en c\u00e9ramique d'alumine<\/a><\/p>","protected":false},"excerpt":{"rendered":"

Alumina ceramic grinding balls have the characteristics of high strength, high hardness, high wear resistance, high specific gravity, small size, high-temperature resistance, corrosion resistance, iron-free, non-polluting, etc., and are widely used in ceramics, glazes, glass, etc. The grinding of non-metals is the grinding medium of ball mills, pot mills, vibration mills, etc. Its performance is […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_templately_pack_id":"","_templately_imported_at":"","_templately_source":"","_templately_import_session_id":"","site-sidebar-layout":"default","site-content-layout":"default","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":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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