Abstract
The article presents the results of researching metal-containing raw material preparation in two-compartment jigging machine, the distinctive feature of which is that the jigging concentrate is extracted in the first compartment, into which initial feed is loaded and the undersize from the second compartment is returned. The subject matter of a new aftertreatment diagram of heavy fraction on concentration tables is that the heavy fraction is divided into two equal parts, which are supplied to the installed parallel tables mixing the concentrate of one them with initial feed of another table where ready gravio-concentrate is produced. It is proved that the concurrent extraction of gold from copper-pyritic ores using the proposed flow sheet diagram allows increasing gold extraction from 5,12 to 9,89 %. As a result of pilot tests of the developed scheme of gravity separation with formation of high metal content in the head of the process, it is determined that its use for extracting lead from slag (4–6 %) from soda smelting of used battery scrap in rotary kilns allows increasing extraction of lead in concentrate by 7,7 % and its content in gravity concentrate by 14,7 %.
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