The prime objective on any SAG mill operation is to adjust the various process parameters (mill in-feed SAG mill speed Inquire Now Evolution of SAG Mill Process Control at the Xstrata 445 PAPER 28 Evolution of SAG Mill Process Control at the Xstrata Nickel Raglan Operation Erik Bartsch1 Chief Engineer Guy Comeau2 Senior Metallurgist
Chat MoreSAG mill discharge measurement model for combined state and parameter estimation. In Third International Conference on Autogenous and Semiautogenous Grinding Technology SAG 2001 vol. IV. UBC Vancouver BC Canada pp. 138–149.
Chat More2.1. Process Flow and Control Infrastructure Each Module at Waterval Concentrator (WvalC) employs a φ7.3 m x 8.2 m EGL SAG mills with 2 x 5200 kW motors in primary milling duty. Two silos containing Merensky and UG2 ore respectively feed the mill that operates at a fixed 75 of the critical speed.
Chat MoreDownload Citation The Optimization of Process Parameters of Large-Scale SAG Mill This paper is based on the kinetic theory of ore and steel balls in the SAG Mill and theoretical research of
Chat MoreSAG mill can be applied as the first stage grinding equipment. It can effectively avoid the occurrence of sliming phenomenon and avoid further grinding of fine particles. It can play a good role in controlling granularity and energy saving. Advantage of SAG Mill. Infrastructure investment and equipment cost is lower than common process
Chat MoreSAG mills • Determination of your SAG mill s power draw characteristics. • SAG Mill Steel Charge Estimation tool provides an estimate of the percent steel in the charge of your SAG mill based on the power draw and the total charge volume. • Ball impact energy chart to determine the impact energy of balls as a function of mill diameters.
Chat MoreThe optimum parameters were 700g/t NaCN 46 solid in pulp pH=10 and d 80 =45 microns using the Taguchi method. So the gold recovery was obtained 90.71 . Also it was concluded that the NaCN concentration was the most effective parameter and the solid percent plus retention time had the lowest effect on this process.
Chat MoreRelation between Sag mill solid and product P80 Both are dependent on feed size. Dependent on Volume solids in SAG mill. Dependent on ball charge volume. Hardness of ore. Recirculation load. Dependent on P80 size. All other parameters are secondary. In general Sag mill solids are kept at 70 by wt. Operating grinding circuit is an art.
Chat MoreThe system is based on acoustic sensors and proprietary process control software to predict and adjust the SAG mill operation according to impacts on the mill and other main process variables. King Becerra FL Global Product Line ManagerProcess Optimisation told IM "There are eight audio sensors on a bidirectional mill four on
Chat MoreThat parameter has a direct impact n almost all o of the parameters in the system itbeing able to be moved to another operation-zone just by itself. is easy to change Th parameter is the mill speed. The whole grinding process is heavily conditioned by the mill speed. The mill
Chat MoreThe prime objective on any SAG mill operation is to adjust the various process parameters (mill in-feed SAG mill speed Inquire Now Evolution of SAG Mill Process Control at the Xstrata 445 PAPER 28 Evolution of SAG Mill Process Control at the Xstrata Nickel Raglan Operation Erik Bartsch1 Chief Engineer Guy Comeau2 Senior Metallurgist
Chat MoreThe optimum parameters were 700g/t NaCN 46 solid in pulp pH=10 and d 80 =45 microns using the Taguchi method. So the gold recovery was obtained 90.71 . Also it was concluded that the NaCN concentration was the most effective parameter and the solid percent plus retention time had the lowest effect on this process.
Chat MoreThe prime objective on any SAG mill operation is to adjust the various process parameters (mill in-feed SAG mill speed Inquire Now Evolution of SAG Mill Process Control at the Xstrata 445 PAPER 28 Evolution of SAG Mill Process Control at the Xstrata Nickel Raglan Operation Erik Bartsch1 Chief Engineer Guy Comeau2 Senior Metallurgist
Chat MoreThe SAG mill disch arges onto a trommel The most critical process parameters namely Coating thickness (μm) Depth of Cut (mm) Spindle Speed SS (rev/min) and Feed Rate (mm/min) are
Chat MoreThis project looked at the process variables from ore characterization through SAG mill practices and finally ball mills and cyclones strategies and resulted in significant improvement in
Chat MoreThis project looked at the process variables from ore characterization through SAG mill practices and finally ball mills and cyclones strategies and resulted in significant improvement in
Chat MoreMinerals Engineering Vol. 14 No. 6 pp. 575-591 2001 PergaOn 2001 Elsevier Science Ltd All rigbts reserved 0892-6875(01)00052-8 0892-6875/01/ see front matter INFERENTIAL MEASUREMENT OF SAG MILL PARAMETERS" T.A. APELT` S.P. ASPREY and N.F. THORNHILL Department of Chemical Engineering University of Sydney NSW 2006 Australia Centre for Process Systems
Chat MoreFrom the literature it is apparent that in circuit design some approaches to the sizing of AG/SAG mills as well as the ball mills that they feed use this parameter. This paper reviews whether the
Chat MoreIf the SAG mill is not intended to be the rate-limiting step in a process plant then it is best to adjust the SAG load (and power) to hold a constant tonnage to satisfy another constraint elsewhere. Underground mines are an example the hoisting capacity of the mine shaft is the rate-limiting step in the process and the SAG mill must adapt to
Chat MoreAn updated data set for sag mill power model calibration This paper expands the SAG mill survey database published by the Author at Procemin 2013. The new database includes 49 published SAG/AG mill surveys and includes mills from all over the world.
Chat MoreThis project looked at the process variables from ore characterization through SAG mill practices and finally ball mills and cyclones strategies and resulted in significant improvement in
Chat MoreAG/SAG index for the studied ores varied within the wide range from 11.94 to 18.14 KWh/t. The highest ore hardness in the process of AG/SAG grinding is noted for sample the lowestfor sample No.5. The values of modified Bond ball mill work index for the product of AG/SAG mill
Chat MoreThe Optimization of Process Parameters of LargeScale SAG Mill This paper is based on the kinetic theory of ore and steel balls in the SAG Mill and theoretical research of power consumption. Orthogonal method is taken to design experimental plan while effective power of the SAG Mill collision times between steel balls and the SAG Mill and
Chat MoreThe parameters A b and ta have no physical meaning in their own right. They are ore hardness parameters used by the AG/SAG mill model in JKSimMet which permits prediction of the product size distribution and the power draw of the AG/SAG mill for a given feed size distribution and feed rate. In . 0 10 20 30 40 50 60 70 80 90 100 0 0.5 1 1.5 2 2
Chat MoreSAG mill can be applied as the first stage grinding equipment. It can effectively avoid the occurrence of sliming phenomenon and avoid further grinding of fine particles. It can play a good role in controlling granularity and energy saving. Advantage of SAG Mill. Infrastructure investment and equipment cost is lower than common process
Chat MoreThe analysis of the influence of ball sizes in SAG grinding hasn t been developed in detail by considering the effect on process parameters inside the mill grinding efficiency or internal classification. Historically a conventional grinding reference has been made on
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