tions at early design stag The article is composed of sections successively informing on the existing techniques of sizing SAG mill power, Bond work in-dexes and their applicability to calculating autogenous/semiau-togenous mills Finally, the authors give a comparative analysis of the results obtained using the described method and in the

Get Priceresponse spectrum calculations The first steps to a overall 3D system model were done to examine dynamic seismic response of the complete SAG mill unit including foundation, mill & bearing as well as the electric motor The analysis was also exchanged, reviewed and discussed with independent specialists Design Of Converter And Control System

Get Pricedesign of a plant for Adanac Moly Corp to include SAG and Ball milling The hardness of each sample was measured in terms of SAG power index, SPI (for SAG grinding) and Bond Ball mill work index, BWi (for ball mill grinding) A further measure, the Minnovex crusher index, Ci was also measured for use in the CEET program to determine SAG

Get PriceJan 01, 2015· For SAG mill design, this model could help by generating a correction factor over the power (kW) calculated in the usual way by multiplying the specific energy in kW h/t (determined from experimental testing) by the projected capacity in t/h The power calculated in the usual way is a basic value which does not consider the variability of the ,

Get PriceThe basic parameters used in ball mill design (power calculations), rod mill or any tumbling mill sizing are; material to be ground, characteristics, Bond Work Index, bulk density, specific density, desired mill tonnage capacity DTPH, operating % solids or pulp density, feed size as F80 and maximum ‘chunk size’, product size as P80 and maximum and finally the type of circuit open/closed ,

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 PriceSAG mill can operate at a reasonable ef ciency if the ﬁ nal ﬁ , The ﬁ nal DB Consulting (DBC) AG/SAG SE calculation is based on an AG/SAG circuit without a pebble crusher , an inefﬁ ciency value in the region of 125 because the design 80 per cent passing value is not achieved The ball mill ,

Get PriceSelect flow sheet, grinding mills, aspect ratios, diameters, lengths and motor kW, report calculations, mill specifications and recommendations for expansion (if applicable) When requested, provide equipment specifications for all equipment items in a commercial grinding circuit including the SAG mill(s), ball mill(s), trommels, screen(s ,

Get Price21 SAG mill modeling In MODSIM, one of the simulation models used for a SAG mill unit is SAGT (Semi-Autogenous Grinding with Trommel) model In this model, a SAG mill with a trommel screen at mill discharge is modeled using the full population balance ,

Get PriceOptimization of mill performance by using online ball and pulp measurements J o u r n a l P a p e r The Journal of The Southern African Institute of Mining and Metallurgy VOLUME 110 NON-REFEREED PAPER MARCH 2010 135 Table I Influence of speed and liner design on load dynamics Mill speed Soft design Aggressive design

Get PriceSAG mill design CDM Consulting used to test Rocky DEM power draw Empirical Model Rocky DEM Model Figure 1 - Morrell C-model for mill power draw Rocky calculations for power draw were shown to accurately replicate Morrell’s C-model for power draw, an increasingly critical component in mill design ,

Get Price• SAG Mill Design Test (Starkey, 2006) There are reasonable correlations between all the tests’ data that generally allow any or all of the data to be used to design a SAG mill based grinding circuit for ‘typical’ ores of a moderate competence range Issues have arisen where the expected SAG mill specific energy is greater than 10 kWh/t

Get Pricedesign and performance predicting tool that uses energy relationships to model the performance of SAG / Ball mill circuits This paper describes the development of the equipment and a small scale static test that measures specific energy for compression breakage through the calculation of mechanical energy consumed and breakage achieved We

Get PriceSimilar to the impeller design affecting pump capacity, the pulp lifter design affects the discharge capacity (or mill throughput) of AG and SAG grinding mills Generally, the discharge from AG/SAG mills consists of one or both of the following components: slurry (water and ,

Get PriceJan 30, 2018· This video shows how to calculate Volume of a SAG Mill using GEOMAGIC DESIGN X in under 6 minutes from start to finish Alignment: Local Based on Pick Point ,

Get PriceA study of the structural design of large SAG mills is presented Stress ranges from strain gauge measurements are compared with those calculated using finite element models for two mills

Get PriceSAG Mill power draw models are used in mill design and grinding circuit modelling to predict how muc h pow er wi, [↓ read more ↓] Alex Doll: modelling: A simple estimation method of materials handling specific energy consumption in HPGR circuits

Get PricePlease find below two calculators for sizing mills using the Bond and Rowland methods: Ball mill sizing: Calculator for ball mill(s) in a single stage circuit Rod ball mill sizing: Calculator for rod mill(s) as first stage of the circuit and ball mill(s) as second stage of the circuit

Get PriceSmarter processing for the future, in the area of SAG mill design involves accurate grinding test data, completing ﬁ nal mill design in less than three months, and at a cost of less than $80 000 US , and mill sizing calculations are similar to reproducibility, ie +/- < 3% 0 5 10 15 20 25 30 35 40

Get PriceMill liner wear and life prediction for any liner/lifter design SAG mill slurry pooling model to predict the onset and effect of slurry pooling for varying operating conditions Grinding mill trajectory model to determine safe operating speed ranges based on liner/lifter design

Get PriceSep 29, 2020· Tumbling mill design has been studied since the middle of the XIX century There are many comminution models in the literature, with preponderance, ,

Get PriceA rock breakage test has been developed that can help predict autogenous (AG) and semi-autogenous (SAG) mill performance in situations where only limited quantities of rock samples are available

Get PriceFeb 23, 2018· This video shows how to obtain enclose Volume for a SAG Mill using Geomagic Wrap in aroud 8 minut It shows Import of FARO Focus FLS file 1/1 ,

Get Priceencountered within each ruling span It also enables the design engineer to define the difference in elevation between the anchor points of any actual span Usually, instead of making the necessary calculations for the actual span, transmission line designers have simply substituted the ruling span sag and tension data for the actual

Get PriceInvolute Gear Design Equations and Calculator Equations and engineering design calculator to determine critical design dimensions and features for an involute gear Lewis Factor Equation Lewis factor Equation is derived by treating the tooth as a simple cantilever and with tooth contact occurring at the tip as shown above

Get PriceThe SAG mill specific energy consumption (E SAG) is calculated using the 1979 Barratt equation and the ball mill specific energy consumption (E bm) This model includes a phantom cyclone effect in the equations due to the ball mill being calculated by difference and not being calculated by the normal Bond equation The resultant operating work ,

Get PriceMay 30, 2016· This project is to design and fabricate a mini ball mill that can grind the solid state of raw materials into fine powder Ball mill is a cylindrical device that used to grind and blend raw ,

Get PriceThe crushed ore is transferred to a semiautogenous (SAG) mill or ball mill where the ore is further reduced in size Water is added to the ball mill, in which a slurry that usually contains from about 20 to 55 percent solids is produced (Singh, 2010; International Mining, 2011) (see fig 2) The

Get PricePipe Launder Design: Determines the flow through a pipe launder of a specified geometry Mill Liner Effective Thickness: Determines the effective mill inside diameter of a given set of "top hat" lifters for use in mill volume and critical speed calculations Mill Filling Calculation:

Get Price