To participate in the 911Metallurgist Forums, be sure to JOIN & LOGIN Use Add New Topic to ask a New Question/Discussion about Grinding OR Select a Topic that Interests you Use Add Reply = to Reply/Participate in a Topic/Discussion (most frequent) Using Add Reply allows you to Attach Images or PDF files and provide a more complete input Use Add Comment = to comment on someone else’s ,

Get PriceBy analysing the sound and other process parameters, SAGwise™ adjusts mill load and decreases steel-on-steel impact, resulting in less energy consumption and increased production Operating a SAG mill is a costly affair

Get Price• Ball Mill Limited: the overall grinding circuit is constrained by the Ball Mill capacity and the SAG mill and Pebble Crusher circuits have spare capacity This limitation is commonly experienced during the processing of the low grade ores (less than 04%Cu) This also confirms theBWi ore hardness – ,

Get PriceThe 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 9071% 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

Get PriceControl of -SemiAutogenous Grinding(SAG) mill weight is an example of an important process that exhibits many of these aspects Maintaining the SAG mill weight at the optimum value is critical for achieving maximum grind rate efficiency and mill production (Powell, MS, van der Westhuizen, AP, & Mainza, AN 2009)

Get PriceThis 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 ,

Get PriceLG A mill power equation for SAG mills Minerals and Metallurgical Processing Feb 1990 pp57-62 Gross power No load power Net power drawn by the charge (813) The net power is calculated from Net power KD25L e! c/ Watts (814) In equation 814, D is the diameter inside the mill liners and Le is the effective length of the mill including the ,

Get PriceDec 01, 2002· This paper discusses the combined state and parameter estimation of SAG mill inventories and model parameters Recognised simulation models are utilised for the rock and water charge state equations New models of the ball charge and mill shell lining states are presented The 36 state system is detectable although not completely observable

Get PriceJul 14, 2015· Parameters Optimization SAGmill 40x26pressed 1 DEVELOPMENT PROPOSAL FOR IMPROVEMENT WITH METHODOLOGY SIX SIGMA RESEARCH WORK OPTIMIZATION OF COMMINUTION IN PROCESS IN SAG MILL 40'POR 26’ AUTHOR: Eng MBA Richard B Cusi Davila, CMRP Master Six Sigma Black Belt 2014

Get PriceAug 30, 2019· 1 Calculation of ball mill capacity The production capacity of the ball mill is determined by the amount of material required to be ground, and it must have a certain margin when designing and selecting There are many factors affecting the production capacity of the ball mill, in addition to the nature of the material (grain size, hardness, density, temperature and humidity), the degree of ,

Get PriceA semi-autogenous (SAG) mill is a kind of grinding equipment with crushing and grinding functions Since it came into being, it has become a favorite in the mineral industry, with its simple process and operation and efficient workability []At the same time, with the success of domestic large-scale SAG mills, especially with the wide application of the SABC (Semi-autogenous ball mill crusher ,

Get Price2 SAG mill rules – evaluate the SAG mill and ball mills weights and power draws and adjust accordingly 3 Ball mill rules – increase or decrease feeds based on weights and power draws Effectively the rules base acts as an envelope around the model-based optimizer It acts as a check on outputs before they are

Get PriceThe SAG mill was designed to treat 2,065 t h −1 of ore at a ball charge of 8% volume, total filling of 25% volume, and an operating mill speed of 74% of critical The mill is fitted with 80 mm grates with total grate open area of 766 m 2 ( Hart et al, 2001 ) 【más】 coal mill technical parameters grinding mill ukraine

Get PriceOct 01, 2009· 1 Introduction This paper describes a case study application of inferential models of the mill inventory and various streams in the primary grinding circuit and is a continuation of earlier work (Apelt et al, 2001a, Apelt et al, 2002a, Apelt et al, 2002b, Apelt and Thornhill, 2009)The inferential measurement models developed in this research are placed into context by utilising them in a ,

Get Pricesize distribution on the SAG mill ll level is made Then, a quantitative relation in the form of a dynamic model is obtained, with the aim to predict the weight of the mill based on the parameters de ning the ore size distribution and other operating variables such as feed rate and speed Finally, the model is validated using real process data from

Get PriceSanjeev Latchireddi, Chief Process Engineer – Grinding Americas, Outokumpu Technology, looks at the shift from ball mills to SAG mills Nowadays, the more successful plants are those that have adopted effective and efficient strategies to optimize their plant operation

Get PriceThe 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 variabl King Becerra, FL Global Product Line Manager – Process Optimisation told IM : “There are eight audio sensors on a bidirectional mill, four on ,

Get PriceAuthors’ final version of paper published in Minerals Engineering 22(12):1032-1044, Oct 2009 INFERENTIAL MEASUREMENT OF SAG MILL PARAMETERS IV: INFERENTIAL MODEL VALIDATION T A APELT*§ and N F THORNHILL§ § Centre for Process Systems Engineering, Imperial College SW7 2BY Email: [email protected]

Get PriceAs one of the machines widely used in mining, a semi-autogenous grinding (SAG) mill can significantly improve the roughing efficiency of rock But the SAG mill still faces the obstacles of significant energy consumption and empirical operation parameters In order to obtain the optimal operation parameters of a SAG mill, in this paper, the discrete element method (DEM) is used to simulate the ,

Get PriceThe 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 05 1 15 2 2 ,

Get PriceSAG/AG milling option is ideal for starter projects with significant exploration and expansion potential Currently a number of the largest SAG mills designed are installed in single stage configuration This paper discusses the challenges associated with the process design of single stage SAG/AG milling circuits, the design flexibility required to

Get Priceparameter process in sag mill Publication » Inferential measurement of SAG mill parameters , The model shows promise in , Parameters Ball Mill Sag , » Learn More Inferential measurement of SAG mill parameters V: MPC simulation, (SAG) mills and is the last in , on Inferential Measurement of SAG Mill Parameters , control of a ,

Get PriceA detailed test work was carried out with an industrial semi-autogenous (SAG) mill in a copper plant in close and open circuits to specify the effects of ore characteristics and operational parameters on mill performance In addition, the shape of mill product particles was studied to monitor breakage events as a function of ore strength

Get PriceIf the process cannot be stabilized, the SAG mill cannot be optimized To achieve the maximum potential of the SAG mill (installed power and resulting throughput), base layer controls in the existing operations need to be configured to minimize the impact of process variability on SAG mill stability This is possible when the instrumentation is ,

Get Priceproduces the JK parameter values A and b as well as estimates the JK parameter ta and crusher model energy matrices, the SMC Test ® can be used to conduct AG/SAG mill and crusher circuit simulations through the use of JKSimMet Independent of this it can be used in power-based calculations, which in conjunction with the Bond

Get PriceA data set of mill operating data is collected from published information and compared to predictions made by two published mill power draw models for SAG mills (Austin's SAG model and Morrell's C-model) A third model (Hogg and Fuerstenau) is fit to each survey and the principal fitting parameter is tabulated Power measurement

Get PriceImportance of Process Parameters in Feed Mills Process parameters are an important part of any quality control program This is the process of measuring specific components of feed or ingredients at different stages like batching, grinding, mixing, conditioning, pelleting, cooling, ,

Get PriceSAGwise total process control manages all key parameters: Parameters monitored: Mill power consumption Load impacts Mill load Pulp density Parameters controlled: Mill speed Feed rate Mill water The result is precisely what you hope to achieve with your SAG mill optimisation efforts: not only higher production and optimal energy

Get PriceSAG 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 particl 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;

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