autogenous milling 1
autogenous milling 1
Autogenous Grinding Mining Fundamentals
Autogenous mills operate mechanically like ball mills however, the media used for grinding differs. Simply put, in autogenous grinding, the media is also the material that is being ground, whereas in other milling methods steel or porcelain balls are used as media.
Autogenous Grinding Information Mine Engineer.Com
20121126&ensp·&enspAutogenous grinding has two advantages, (1) it reduces metal wear and (2) eliminates secondary and tertiary crushing stages. Thus it offers a savings in capital and operating costs. Autogenous mills are available for both wet and dry grinding. The diameter of autogenous mills is normally two to three times the length.
Simultaneous autogenous milling and ferric chloride
199931&ensp·&enspFig. 1 illustrates the XRD pattern 2 for the asreceived chalcopyrite. Pyrite and quartz are also present, as would be expected (see Table 1, Table 2).After 28.8 ks of simultaneous autogenous milling and leaching, chalcopyrite is not detected, but synthetic nantokite (CuCl) becomes the dominant pattern (see Fig. 2).This would seem to suggest that the reaction (1) CuFeS 2 +4FeCl 3 CuCl 2
AG Autogenous Grinding Mineral Processing
2020722&ensp·&enspAutogenous grinding tests were run in a 10ft x 4ft Rockcyl mill. The principle of prepared feed and media was utilized to determine how coarse a feed could be commercially fed to a rock mill. Secondary rock milling was expanded toward the particle sizes of primary milling while still utilizing the practices of secondary milling.
Testing for autogenous and semiautogenous
198651&ensp·&enspThis paper reviews current testing methods for sizing autogenous and semiautogenous mills in the North American context with comments on the necessity for test work and requirements for different circuits and equipment selection. The economics of testing and the value received are discussed.
Autogenous Grinding Semi Autogenous Grinding
2020728&ensp·&enspA media competency test for secondary autogenous (pebble) milling has also been developed to evaluate the media for secondary autogenous milling. Testing for Product Size. Professor Marcus Digre in his book on autogenous grinding discusses grinding action in autogenous mills as different from the action in rod and ball mills.
A General Model for Semiautogenous and Autogenous
201097&ensp·&enspA General Model for Semiautogenous and Autogenous Milling L.G. AUSTIN, J.M. MENACHO and F. PEARCY Pennsylvania State University, Philadelphia, Penn., USA This paper was the subject of a crossdisciplinary presentation under the chairmanship of Dr A .M. Edwards The paper summarizes the current state of development of simulation models
The Modelling of Autogenous Grinding ScienceDirect
198991&ensp·&enspMin. Metall. nov. ,7798. Stanley G.G. (1975). Considerations in the application of the autogenous milling. J.S.Afr.Inst.Min. Metall. oct., 5355. not discussed. As discussed earlier the lumps are broken depending on the enrgy avail able. This was tested by both drop ping lumps from a height of 1,43 me ters. 0 10 20 30 40 50 Number of drops
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