2019-4-8

УДК 622.7  DOI: 10.21440/0536-1028-2019-4-71-79

 

Tsypin E. F., Popova E. V., Efremova T. A. The influence of X-ray radiometric separation on the technological parameters of extra-balance zinc ore deep dressing. Izvestiya vysshikh uchebnykh zavedenii. Gornyi zhurnal = News of the Higher Institutions. Mining Journal. 2019; 4: 71–79 (In Russ.). DOI: 10.21440/0536-1028-2019-4-71-79

Introduction. At a recent time, ore of complex chemical and mineralogical composition, including extrabalance ore, get involved into ore processing. Low assay is common with extra-balance ore. X-ray radiometric method is one perspective way of improving the quality of raw material. Research aim is to study the influence of preliminary dressing with the X-ray radiometric method on the technological parameters of extra-balance zinc ore flotation.
Methodology. The research has been carried out with the use of extra-balance zinc ore with the size of –50+0 mm. Unsortable grain-size class and one jigging class +30 mm have been selected from the initial ore. Jigging class is separated at an X-ray radiometric separator to get the concentrate of X-ray radiometric separation (XRRS) and XRRS tailings. By mixing XRRS concentrate in the given proportion and the contents of the unsortable class 80, 60, 30%, combined products are formed being the products of flotation feed. Flotation of the given products has been carried out to get the rough concentrate and flotation tailings. Technological parameters have been calculated.
Summary. Combined application of X-ray radiometric separation and flotation of extra-balance zinc ore allows significantly improving technological parameters and reconsider approaches to the technology of the given ore dressing.

Key words: preliminary concentration; flotation; X-ray radiometric separation; extra-balance zinc ore; technological parameters; preliminary dressing.

 

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