An experimental study on the ultra-fine grinding of gypsum ore in a dry ball mill
Küçük Resim Yok
Tarih
2016
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ELSEVIER SCIENCE BV
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Gypsum is a crystalline form of hydrated calcium sulfate (CaSO4 center dot 2H(2)O) generally used in cements and plasters in the construction industry, though also in paints, fertilizers, medicines, papers, and textiles. For use in these materials, gypsum must be ground finely (<100 mu m), if not ultra-finely (<10 mu m), for which ball mills are most effective. Despite gypsum's widespread use and the regular need to grind it, studies concerning the grinding of gypsum ore remain scarce. In response, in this study, we have systematically investigated how certain grinding parameters (i.e., mill speed, ball filling ratio, ball size distribution, powder filling ratio, grinding aid ratio, and grinding time) of conventional dry ball mills affect the grindability of gypsum ore. We determined the properties of the micronized gypsum products obtained in optimal grinding conditions, and the results showed that the dry ball mill grinding process can effectively produce ultra-fine gypsum products. (C) 2015 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
Gypsum ore, Ultra-fine grinding, Dry ball mill, Product features
Kaynak
POWDER TECHNOLOGY
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
291
