Qu'est-ce que le talc ?
Talc is one kind of mineral formed by hydrothermal alteration. Magnesium-rich minerals usually become talc after hydrothermal alteration. Talc is common silicate mineral. Since talc is ultimately used in powder form, fine grinding is a necessary process for talc. The Mohs hardness of talc is 1, so it is easier to grind. Fine-grinding equipment of talc would be mentioned beblow:
Ultra-fine talc powder with mesh over 325 is one of the ultra-fine powders with largest application worldwide, it is widely used in fabrication du papier, plastics, rubber, paints and coatings, cosmetics and ceramics.
Équipement utilisé pour le broyage fin de talc
At present, the processing of ultra-fine talc mainly adopts dry processing. The equipment of dry processing mainly includes: impact mill, jet mill, vibration mill, roller mill and ball mill.
La procédure de broyage fin du talc
In short, the processing procedure is: talc block – coarse crushing – drying – medium crushing – fine grinding – ultra-fine grinding – cyclone aggregation – packaging. Specifically, the procedure is as follows: first, pre-crush talc stone through coarse crushing, then send crushed talc to vertical dryer via bucket elevator. Next, crush the dried feed by hammer crusher, after crushing, send ground feed to Raymond mill for find-grinding. Next, ultra-fine grinding of ground powder by roller mill, ball mill or jet mill. The final product fineness can reach 500-5000 mesh (d97=30-5um). After ultra-fine grinding, the talc powder are classified by classifier and finally collected through cyclone collector.
Des études ont montré que la poudre de talc subit plusieurs changements après un broyage ultrafin. Outre les changements visibles sur la taille des particules, la surface spécifique augmente, la blancheur s'améliore et l'activité de la poudre s'améliore considérablement. Le broyage ultrafin est une méthode de traitement en profondeur importante pour les matières minérales non métalliques. Le choix d'un équipement de broyage adapté est essentiel pour améliorer l'efficacité du traitement et la qualité du produit.
Résumé
Des études ont montré que la poudre de talc subit plusieurs changements après un broyage ultrafin. Outre les changements visibles sur la taille des particules, la surface spécifique augmente, la blancheur s'améliore et l'activité de la poudre s'améliore considérablement. Le broyage ultrafin est une méthode de traitement en profondeur importante pour les matières minérales non métalliques. Le choix d'un équipement de broyage adapté est essentiel pour améliorer l'efficacité du traitement et la qualité du produit.
Qingdao Epic Powder Machinery Co., Ltd. is a professional manufacturer of powder processing equipment. The products include: jet mill, ball mill, vibration mill, broyeur à rouleaux, various classifiers, surface coating modifiers and related auxiliary equipment, such as dust collector. Qingdao Epic has always adhered to the principle of reliable quality, low price, first-class after-sales service, and the concept of one customer one design. Ball mill from Qingdao Epic can be well used in grinding talc powder. It can be combined with single classifier or multiple classifiers for classifying powders with different fineness. The ball mill-classifier production line is advanced processing line for non-mineral powders. It has high reputation among customers both home and abroad.
If you have related demands or questions, contact staff of Qingdao Epic directly, they are always at your service.
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