Open AccessEconomic efficiency of preconcentration with X-ray fluorescence separation
Author(s) -
Tsypin Evgenii,
Tatiana Efremova,
T. Yu. Ovchinnikova
Publication year - 2020
Publication title -
izvestiâ vysših učebnyh zavedenij. gornyj žurnal
Language(s) - English
Resource type - Journals
eISSN - 2686-9853
pISSN - 0536-1028
DOI - 10.21440/0536-1028-2020-6-66-74
Subject(s) - composition (language) , fluorescence , mineralogy , geology , environmental science , physics , philosophy , linguistics , quantum mechanics
. A promising direction in mineral processing development is the combination of preconcentration and deep processing. For that purpose, X-ray fluorescence separation (XFS) is highly effectively used. A feature of the technology is the availability of the procedures of crushing and screening of the initial rock into machine and unsortable classes, and separation in machine classes. The efficiency of preconcentration complex depends on the quality of granulometric composition forming procedures. Methodology. X-ray radiometric washability of polymetallic ore samples has been assessed, schemes and equipment for preconcentration with the use of X-ray fluorescence separation of the rock mass with various granulometric composition have been selected, and technical and economic assessment has been made. Results. Economic indicators of X-ray fluorescence separation application for preconccentration have been determined for polymetallic ore of various granulometric composition. The possibilities for significant improvement of the economic effect by means of forming the granulometric composition of the processed rock mass have been revealed. Summary. X-ray fluorescence separation in polymetallic ore preconcentration is highly effective. Optimization of blasted rock mass granulometric composition by means of specific organization of drilling and blasting operations and selecting specific modes of crushing and screening results in the growth of the economic effect from XFS by 2.1–2.7 times.