Rapid determination of Bond rod-mill work index by modeling the grinding kinetics

Validerad; 2013; 20121108 (ysko)
Generally, Bond work index is a common method for selecting comminution equipment as well as estimation of grinding efficiency and calculating required power. In the current research, a simple, fast and accurate procedure is introduced to find the rod-mill work index based on the conventional Bond work index. The grinding experiments were carried out on four typical samples of iron, copper, manganese and lead–zinc ore with three test-sieves in specified time periods and aimed to shortening the procedure. Furthermore, the grinding kinetics and mass balance equations were applied to model the standard Bond rod-mill work index. For comparing the standard Bond rod-mill work index and the new modeled method, work index (Wi) and produced fine particles in a cycle (Gi) for the four samples determined. The performed paired Student’s t-test results indicated that the Standard Deviation for Gi and Wi obtained by the shortened method are respectively 0.50 and 0.58 in respect of traditional Bond method.

Hashemzadehfini, M.Iran Mineral Processing Research Centre (IMPRC), Karaj (författare)
Parian, Mehdi AmiriLuleå tekniska universitet,Industriell miljö- och processteknik(Swepub:ltu)mehpar (författare)
Iran Mineral Processing Research Centre (IMPRC), KarajIndustriell miljö- och processteknik (creator_code:org_t)

Ingår i:Advanced Powder Technology: Elsevier BV24:1, s. 441-4450921-88311568-5527

Av författaren/redakt...: Ahmadi, R.; Hashemzadehfini, ...; Parian, Mehdi Am ...

Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Materialteknik; och Metallurgi och m ...

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