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13:03 Mar 21, 2018
English to Russian translations [PRO] Law/Patents - Patents / Горнодобывающая промышленность, пенная флотация, классификация
English term or phrase:reflux classifier
"Alternatively, in certain embodiments the flow of particles in fluid in the first outlet passes to a classification apparatus to produce a flow of relatively higher density particles, and a separate flow of relatively lower density particles.
In certain forms of this, the classification apparatus can be one or more of the group comprising: a hydrocyclone, a spiral, a gravity table, a teeter bed and a reflux classifier."
"In the iron ore industry, the recovery of fine particles is an important concern in terms of process performance and production costs and perennial efforts are devoted to increase the efficiency in handling these fines. The Reflux Classifier (RC) is a relatively new technology that is mainly used in the coal and minerals industries. The operating principle of this system is based on three mechanisms: hindered settling, autogenous dense medium and lamella settling.
This paper summarizes the experimental work undertaken to assess the RC for the beneficiation of iron ore fines. Tests performed with a spiral tailings and a screened spiral feed showed that products meeting commercial iron oxide concentrate specifications with very high recovery could be obtained in only one step with the RC at the pilot scale. An attempt has also been made at benchmarking the RC tests (pilot scale) against sink-float tests (laboratory scale)."