ISSN:0734-9343    

DOI:10.1080/15455838909407961

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

摘要:

In dense medium processes for the beneficiation of minerals the consumption of medium (generally ferrosilicon) represents a major component of the operating cost. This provides a strong incentive for improvement in heavy medium recovery circuit design and operation. A major thrust in heavy medium plant design over the past decade has therefore been towards circuits which reduce medium losses.

ISSN:0734-9343    

DOI:10.1080/15455838909407962

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

摘要:

A Model of dense medium cyclones is developed based on balancing the terminal velocities of the discrete particles due to the centrifugal force against a random turbulent eddy velocity. An expression of the form —

ISSN:0734-9343    

DOI:10.1080/15455838909407963

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

摘要:

The paper describes the design of the dilute medium and medium recovery circuits installed at the coal preparation plants at the Cornwall Coal Company's Fingal Mine, and the BP Coal Australia's Howick Mine. These circuits minimize the use of clarified water for rinsing to improve the mass transfer of adhering medium from the coal surface into the carrying liquid, and have been combined with the use of two stage magnetic separator. The separator utilizes a conventional concurrent first stage and a counter-rotation second stage. This combintion results in high medium recoveries during both normal operation, and start up and shut down phases when large quantities of medium can be most from a conventional circuit.

ISSN:0734-9343    

DOI:10.1080/15455838909407964

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

摘要:

Models which have been presented in the literature consider only selected aspects of dense medium cyclone operation, are empirical in nature and generally relate only to severely limited ranges of operating parameters. This paper reports progress towards development of a more comprehensive and robust model.

ISSN:0734-9343    

DOI:10.1080/15455838909407965

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

摘要:

Density tracers are currently used in a large number of Australian coal preparation plants and research laboratories, yet few papers deal with the rigorous statistical treatment of the results from such tests.

ISSN:0734-9343    

DOI:10.1080/15455838909407966

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

摘要:

Systems for the routine on-line determination of ash content of process streams in coal preparation plants and handling systems have been in use in Australia for over four years. More recently, monitors for on-line moisture measurements have been developed to complement the ash measurement function. The technology for these systems is reviewed briefly.

ISSN:0734-9343    

DOI:10.1080/15455838909407967

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

ISSN:0734-9343    

DOI:10.1080/15455838909407968

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor

摘要:

This is a scanned image of the original Editorial Board page(s) for this issue

ISSN:0734-9343    

DOI:10.1080/15455838909407960

出版商:Taylor & Francis Group    

年代:1989

数据来源: Taylor