A comparison of SAG mill power models Alex Doll * Alex G Doll Consulting Ltd, Canada ABSTRACT SAG Mill power draw models are used in mill design and grinding circuitPDF | On Feb 24, 2022, Alex Doll published Technical Memorandum on Grinding Mill Motor Power Definitions Rev6 | Find, read and cite all the research you need on ResearchGateTechnical Memorandum on Grinding Mill Motor Power
SAG 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 specific2017年10月1日· All content in this area was uploaded by Alex Doll on Sep 26, CFnet is an empirical adjustment to a ball mill circuit SAG semiautogenous grinding (mill) TPowerbased modelling of singlestage AG and SAG mill circuits
2017年10月5日· SAG mill power draw models are used in mill design and grinding circuit modelling to predict how much power will be consumed by a particular mill geometry and operating configuration The importance of conducting surveys suited to model calibration will be highlighted because the review of literature shows that survey informationMetallurgical process calculations; Globally recognized specialist in mineral grinding; Online powerbased grinding circuit design and benchmarking software wwwsagmilling example; Circuit benchmarking and debottlenecking audits for operating mines example; Short courses For operators, courses on operating SAG &Alex G Doll Consulting Limited
Sagmilling is home to a collection of both free and subscriptionbased calculation tools to aid metallurgical process engineers perform comminution calculations Grinding circuit design tools, including for SAG millball mill circuits, and geometallurgy energy models are available to subscribers The online library of technical articles2019年2月8日· Energy Calculation Model of Ball Kinematics Based On Ball ENERGY CALCULATION MODEL OF BALL KINEMATICS BASED ON BALL MILL COAL LOADpdf Free download as PDF File (pdf), Text File (txt) or read online for free JankovicValidation of a closed circuit ball mill modelpdf 001REP Increased SAGalex doll grinding circuit sag ball mill calculations
Blank spreadsheet that is prepopulated with the field names needed to import laboratory test results into the circuit model testwork database (subscription required) Enter your test results, one per row, arranged into the columns indicated To import into your testwork database, copy the block of cells starting with the top row2015年10月20日· Methods to Estimate AG/SAG Mill Grinding Power Requirements (1) Using the results of SMC data (2) Using SAG Power Index (SPI) data (3) Using the 1989 Barratt method updated on Alex Doll’s Web site (February 16, 2015) (3) Using Don Burgess’ method (11th Mill Operators Conference 2012) They seem to give veryMethods to Estimate AG/SAG Mill Grinding Power Requirements
2022年2月24日· The SAG mill power draw model of Austin (using the calibration by Doll, 2013) is used to predict the process power draw at the mill shell, P shell , and the efficiency losses for the drive'sSep 2016 Alex Doll 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 fromAlex DOLL | Consultant | Bachelor of Applied Science | Research
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; Usecalculate sag ball mill circulating load calculate sag ball mill Home alex doll grinding circuit sag ball mill calculations Crusher mill PF Series Impact More calculating circulating load on a cone crusher grinding mill equipment capital and operating costs can be calculated and compared comprises five MP1000 cone crushers in circulatingalex doll grinding circuit sag ball mill calculations
*Alex Doll1 and Berge Simonian2 1Alex G Doll Consulting Ltd PO Box 1236 Logan Lake, BC – V0K 1W0 (*Corresponding author: alexdoll@sagmilling) 2Centerra Gold Inc – Mount Milligan Mine 299 Victoria St, Suite 200 Prince George, BC – V2L 5B8 Abstract Bond's work index is one of the mostly widely used metrics of mineral grindability2018年4月17日· Mill, gear and pinion friction multiplier: 1025 Mill Power required at pinionshaft = (240 x 165 x 1025) ÷ 0746 = 5440 Hp Speed reducer efficiency: 98% 5440 Hp ÷ 098 = 5550 HP (required minimum motor output power) Therefore select a mill to draw at least 5440 Hp at the pinionshaftAG Autogenous & SAG SemiAutogenous Mill Design Calculations
Alex Doll * Alex G Doll Consulting Ltd, Canada ABSTRACT SAG Mill power draw models are used in mill design and grinding circuit modelling to predict how much power will be consumed by a particular mill geometry and operating configuration This paper will compare SAG mill models by Morrell, Loveday (using "Power Numbers" publishedAlex G Doll MINERAL COMMINUTION CONSULTANT Mineral grinding specialist Expert witness in litigation related to grinding circuit design and throughput forecasting Presented the “AG/SAG milling” module (2017, 2019, 2023), Montréal, Canada Geometallurgy basicsResume of Alex G Doll
Alex Doll Grinding Circuit Sag Ball Mill Calculations As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc we offer advanced, rational solutions for any sizereduction requirements, including quarry, aggregate, grinding production and complete plant planEF5BM=[ P80+103 1145×P80] ( 3 ) The EF4 formula requires both the rod mill and ball mill work index (rod mill Wi is used to calculate the optimal feed size) and because this is a “singlestage ball mill” calculation, the F80 is actually the rod mill feed size (10,000 µm) from Table 1 and the P80 is the ball mill circuit product The EF5 factor only appliesC O N S U L T I N G L T D TECHNICAL MEMORANDUM
2016年9月1日· 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 The2016年6月6日· Single stage AG/SAG milling AG/SAG mills as a primary grinding stage in a circuit with or without additional stages of comminution Inclusion of pebblecrushing circuits in the AG/SAG circuit Circuits above, but with feed preparation including two stages of crushing—typically referenced as precrushingSAG Mill Grinding Circuit Design 911 Metallurgist
single SAG mill in closed circuit with a pebble crusher and a single ball mill in closed circuit with hydrocyclones, as described in TorrealbaVargas et al, 2015 Mill survey measurements Fresh feed rate 1651 dry t/h (SAG product); Hydrocyclone feed rate 4577 dry t/h (654 t/h diverted to gravity circuit); Ball mill feed rate 2270 dry t/h;AN UPDATED DATA SET FOR SAG MILL POWER MODEL CALIBRATION *A G Doll Logan Lake, Canada ABSTRACT 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 TheAN UPDATED DATA SET FOR SAG MILL POWER MODEL
Semiautogenous Grinding Circuits Alex Doll Alex G Doll Consulting Ltd Cork, Ireland alexdoll@sagmilling Prepared November 20, 2022 for: •AG/SAG mill circuit types •AG/SAG circuit powerbased modelling •Bond Work Index •AG/SAG population balance modelling •Mill motors Part 1WiRM, the Bond rod mill work index (conducted using a waveliner mill and a fourteen mesh closing size), unitless (but relative to either a metric tonne or Imperial short ton basis) WiRM = 115 (A×b)057 [based on reinterpretation of Doll, 2016] WiRM = 135 (SGI)051 [Doll, 2016] WiC, the Bond crushing work index, unitless (but relative toPowerbased modelling of singlestage AG and SAG mill circuits
2014年12月22日· For design purposes, you need an estimation or prediction of your SAG Mill’s tonnage; well, there are 3 ways to generate good rock “ore” hardness testing data for SAG and ball mill circuit2017年1月23日· calculation of the new set points can have negative effect on the of SAG mill grinding circuit and to stabilize feeding regime to Doll, AG, 2013 A comparison of SAG mill power models In(PDF) Supervisory Fuzzy Expert Controller for SAG Mill Grinding
Metallurgical process calculations; Globally recognized specialist in mineral grinding; Online powerbased grinding circuit design and benchmarking software wwwsagmilling example; Circuit benchmarking and debottlenecking audits for operating mines example; Short courses For operators, courses on operating SAG &2011年1月1日· The AG/SAG circuit discharge P80 is now increasingly referred to as the “Transfer Size” or T80 for short From the literature it is apparent that in circuit design some approaches to theThe appropriateness of the transfer size in AG and SAG Mill Circuit
2017年10月1日· All content in this area was uploaded by Alex Doll on Sep 26, CFnet is an empirical adjustment to a ball mill circuit SAG semiautogenous grinding (mill) T 802014年3月1日· 102 Circulating load calculation in grinding circuits 1 I ntroduction The mass ba lances in m ineral pro cessing circuits are based on the equation of mass conservation, given by: F = C +T (1(PDF) Circulating load calculation in grinding circuits
First you need the volumetric capacity of the mill, this is the volume of the mill at rest where the ore just reaches the discharge level (often about 1/3 of the internal volume) From this you need to subtract the volume of the grinding media You now have the unit capacity Then take the volumetric feed rate of the new ore per time1 Powerbased modelling of singlestage AG and SAG mill circuits Alex Doll1* and Miguel Becerra2 1 Consultant, Alex G Doll Consulting Ltd, Canada 2 Technical Specialist, Processing group T&SPowerbased modelling of singlestage AG and SAG mill circuits
2020年1月1日· Functional Performance has been used for many years to disentangle different types of ball mill circuit by Alex Doll on Sep 26, 2022 fine grinding calculations are both easier and moreLast commented on by Alex Doll hmm, SAG or Ball mill circuit in iron ore crushing&grinding S 1 REPLY 658 VIEWS Started by Sarah Hello everyone, I would like to know which one is efficient in iron ore crushingGrinding Classification Circuits | PDF | Mill (Grinding)
2015年11月11日· Alex G Doll C O N S U L T I N G L T D TECHNICAL MEMORANDUM February 16, 2015 TO: UBC MINE331 CLASS FROM: ALEX DOLL, ALEX G DOLL CONSULTING LTD SUBJECT: SAG MILL + BALL MILL CIRCUIT SIZING Summary: Most large tonnage mineral processing facilities consist of a primary SAG milling andSAG Mill Circuit Example — Gold Processing SAG mill circuit example for gold processing [image: (13563)] AG/SAG Mill AG/SAG mills are normally used to grind runoffmine ore or primary crusher product Wet grinding in an AG/SAG mill is accomplished in a slurry of 50 to 80 percent solids 2D and 3D simulations of particles in a SAG MillAMIT 135: Lesson 6 Grinding Circuit – Mining Mill Operator
I’m interested to know when sizing a new ball mill, as to why recirculating load has no effect on the power calculation, although it will have effect on volumetric capacity naturally For instance a mill of 300tph with a 300% recirculating load would have 1200 tph going through effectively, but if2015年6月19日· Ball Roller Power Calculation Model #1 A wet grinding ball mill in closed circuit is to be detective 100 TPH of a substance with a work index of 15 and a size distributor of 80% passing ¼ inch (6350 microns) The required product size market is to breathe 80% passing 100 mesh (149 microns)Ball Mill Design/Power Calculation DESIGN AND ANALYSIS OF BALL MILL
2021年9月8日· Doll, AG and Amelunxen, P (2013) Powerbased grinding models Short course presented at the 10th International Conference on Mineral Processing, Santiago, Chile Show more2013年7月15日· b=70% b= 100% b=0% 2 E It should be emphasised that this increase is with respect to ~95% passing size material and not 80% passing size (or P80) as defined in Bond’s method screen sizes(PDF) Energy Efficient Ball Mill Circuit – Equipment Sizing
New video added to the Mineral Grinding Concepts playlist AG → SAG → BAG milling https://lnkd/gASZgsvs Alex Doll on LinkedIn: Ep07 AG, SAG, & BAG milling2018年10月24日· Alexis Yovanovic Indeed Specific energy consumption (W, kWh/t) refers to the simple quotient of the “net” power applied by the mill (kW) divided by the feed rate (t/h) A mill can have aOperating work index is not the specific energy consumption
