TO THE QUESTION OF ONLINE MONITORING OF METAL CONTENT IN ORE SHIPPED BY MINES TO PROCESSING FACTORIES OF KAZAKHMYS CORPORATION LLC

Abstract

Purpose.Creating an effective system of online monitoring of ores sent to processing plants, focused not only on the profile element (copper), but also on related (silver, cadmium, molybdenum, arsenic) elements (the need to determine the content of silver and cadmium from 1+ ppm). Creating a procedure for the objective distribution of drain metal between mines. Methods. Study of the influence of numerous interfering factors on the test results of ores on the canvas of technological conveyors of concentrators of Kazakhmys Corporation LLC by X-ray fluorescence method (RFM) became EDXRF RKS RLP-21T determination of low content of silver and cadmium (1 + .ppm). The study was conducted in three stages. At the first stage, the following methods were developed: RKS calibration method, RKS measurement procedure, variable ore-RKS clearance method, RKS – Client ZhZF-1,2 system software for registration and display of RKS content data online. elements and the amount of metal in the railway warehouses of ore from mines and quarries and put into operation three RKS RLP-21T on ZHZF-1 2. In the second stage, four RKS RLP-21T were launched (BZF, KZF, NPR). At the third stage, RKS was launched at ZHZF-1.Аnd the basic principle was used in the research: the deposits are different – the RKS calibration method is the same for everyone. Results. The choice of X-ray fluorescent energy dispersion (EDXRF) ore control station (EDC) for online monitoring of metal content in ores on the canvases of technological conveyors of concentrators at ores size class -300 mm is substantiated. Scientific novelty. For the first time in Kazakhstan, on the scale of a huge mining enterprise Kazakhmys Corporation LLP, in practice, the task of online monitoring of the contents of the main (Cu, Pb, Zn) and accompanying (Ag, Cd, Mo) elements at low (1+ ppm) contents of silver, cadmium and 15+ ppm of molybdenum with an ore size of -300mm. For the first time in world practice, it has been proven that EDXRF RKS can provide online monitoring of complex composition copper-containing polymetallic ores for the content of not only basic, but also accompanying (silver, cadmium) components. For the first time in Kazakhstan on the scale of a huge mining enterprise LLC “Kazakhmys Corporation” in practice solved the problem of online monitoring of the content of basic (Cu, Pb, Zn) and related (Ag, Cd, Mo) elements at low contents of silver, cadmium (1+ ppm ) and molybdenum content (15+ ppm) at ore size -300mm. For the first time in world practice, it has been proven that EDXRF RKS can provide online monitoring of polymetallic ores containing copper for the content of not only basic but also related (silver, cadmium) components. Practical significance. Eight RKS RLP-21Ts were put into production. VTK wagon test points on cone crushers KKD 800/160 KD-1 ZHZF-1, KKD 1500/180 KD-2 ZHZF-1, KKD 1500/180 BZF were liquidated. The procedure of objective distribution of drain metal between mines has been established. Keywords: X-ray fluorescent energy dispersive method, ore control station, input process conveyors of concentration plants, online monitoring of the content of elements in ores.