- Title
- Development of the reflux classifier
- Creator
- Galvin, K. P.
- Relation
- ARC
- Relation
- Challenges in Fine Coal Processing, Dewatering, and Disposal p. 159-185
- Relation
- http://www.smenet.org/CMSPages/PortalTemplate.aspx?aliaspath=/Home
- Publisher
- Society for Mining, Metallurgy & Exploration (SME)
- Resource Type
- book chapter
- Date
- 2012
- Description
- The reflux classifier is a new gravity separation technology for processing fine coal and other dense minerals, developed through collaboration between the University of Newcastle and Ludowici Australia. This chapter provides an account of that development, covering a number of the key findings that have led to the final design, and indeed the separation performance achieved. The chapter also outlines the theoretical basis used to quantify the capacity of the separator. The technology embodies the benefits of a high shear rate similar to that observed for spirals, the benefits of an autogenous dense medium similar to that observed in a teetered-bed separator, and an increased throughput advantage similar to that produced by a lamellae thickener, with a strong synergy achieved among all three. Moreover, the laminar shear mechanism that arises within closely spaced inclined channels permits a powerful separation on the basis of density, delivering a significant performance advantage at the low cut points required for the recovery of metallurgical coal.
- Subject
- reflux classifier; gravity separation technology; fine coal processing
- Identifier
- http://hdl.handle.net/1959.13/1307836
- Identifier
- uon:21539
- Identifier
- ISBN:9780873353632
- Language
- eng
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