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The comminution of multicomponent feeds under batch and locked-cycle conditions: Kinetics, simulation and energy distribution.

Authors
Fuerstenau-DW; Venkataraman-KS
Source
Int J Miner Proc 1988 Apr; 22(1-4):105-118
NIOSHTIC No.
10008576
Abstract
The results of a detailed investigation of batch and locked-cycle dry grinding of quartz-calcite mixtures in a laboratory ball mill are presented. Batch grinding tests showed that the breakage rate function of the components is time-independent but composition- dependent and is normalizable with specific energy. Locked-cycle tests on the mineral mixtures revealed that approximately 25 2-min cycles are required before the composition of the circuit product and the recycle material attains steady state. The circulating load, after steadily increasing during the first 15 cycles, continued to fluctuate over a narrow range. These findings indicate that industrial-scale grinding circuits may also have long transient periods as the grindability of the ore changes and that circuits might be in transience perpetually.
CODEN
IJMPBL
Publication Date
19880101
Document Type
Journal Article
Fiscal Year
1988
NTIS Accession No.
NTIS Price
Identifying No.
MIR 4-91
Issue of Publication
1-4
ISSN
0301-7516
NIOSH Division
WO
Source Name
International Journal of Mineral Processing
State
DC
Performing Organization
University of CA--Berkeley
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