optimizing your sag mill operation
and sizing of sag mill
AG Autogenous & SAG Semi-Autogenous Mill . Obviously, the SAG mill is consuming more and the ball mill less power than was predicted by the empirical method, but the overall total is 99.5% of the predicted total. Examples. The Hemlo gold project of Teck-Corona (1000 mtpd) provides an example of mill sizing using the empirical ...
Online SAG Mill Pluse Measurement and Optimization ...
@article{osti_969329, title = {Online SAG Mill Pluse Measurement and Optimization}, author = {Rajamani, Raj and Delgadillo, Jose and Duriseti, Vishal}, abstractNote = {The grinding efficiency of semi autogenous milling or ball milling depends on the tumbling motion of the total charge within the mill. Utilization of this tumbling motion for efficient breakage of …
ABB process control and automation solutions for mines ...
Further optimize your mining process with ABB Ability™ MineOptimize (English - pdf - Article) ... Use of the latest technology to overcome the demands of mill operation (English - pdf - Article) ... The world's first 42-foot diameter 28 MW gearless SAG mill (English - pdf - Technical publication)
AUTOMATION ADVANCED CONTROL EXPERT (ACE)
SAG Mill ACE Supervisory optimization BrainWave MPC Metris Digital Twin Metris risk monitoring Metris data analytics PRODUCT: SAG MILL ACE Antofagasta PLC's Minera Los Pelambres has one of the largest open pit mines in Chile and produces approxi-mately 320,000 tonnes of copper concentrate annually. When copper prices are high, producers look ...
Optimization of a SAG Mill Energy System: Integrating Rock ...
An optimization is carried out to minimize the yearly cost of energy for the operation of the SAG mill. This cost includes the energy consumption cost in $/kWh and the capital cost for the PV-BESS infrastructure, prorated over the life of the battery system, accounting for the discount rate through an annuity factor (Pamparana et al. 2019a, b).The …
Integrating photovoltaic solar energy and a battery energy ...
The SAG data corresponds to the operation of three mills over six months, from which a typical day was selected through fuzzy c-means clustering. The total production for this typical day was 192,000 tons for the three SAG mills, with a maximum and minimum SAG mill power consumption of 42.17 MW and 40.77 MW, respectively.
Optimization of mill performance by using
The performance of tumbling mills is sensitive to the volumetric mill filling which influences grinding media wear rates, throughput, power draw, and product grind size from the circuit. Each of these performance parameters peaks at different filling values. In order to contin-uously optimize mill operation, it is vital to
Benefits of process control systems in mineral processing ...
Closed SAG mill +1%: Bouché et al., 2005, Van Drunick and Penny, 2005: Xstrata Nickel Raglan Operation: Closed SAG mill, ball mill +4% to +5% +0.6%: Bartsch et al. (2008) Xstrata Strathcona nickel mill: Closed rod mill, ball mill +7.7%: 0%: 0%: Bartsch et al., 2008, Nunez et al., 2009: Fuzzy logic control: Equigold Mt Rawdon plant: SAG mill +2 ...
Optimizing your SAG Mill | Mining Surplus
The optimal performance of AG/SAG mills is the key to successful plant operation. All AG/SAG mills using radial or curved pulp lifters suffer from inherent material transport problems such as slurry and pebble pooling, which decrease throughput and increase energy consumption.
How to resolve the most common hydrocyclone problems
The grinding mill might be the issue. Of course, the hydrocyclone isn't the only place to look when you are reviewing the classification of your grinding mill circuit.. Often when we're investigating a mill circuit, there are cases where the amount of new feed to the plant has exceeded the ability of the mill to grind the ore fine enough to allow the cyclones to generate …
SAG Mill Optimization using Model Predictive Control
Control 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, M.S., van der Westhuizen, A.P., & Mainza, A.N. 2009).
The innovative - Magotteaux
SAG mill operation is "sensitive" to changes in ore quality (hardness and size). Changes in the feed can quickly result in a build up, or loss, of rocks inside the mill. Both situations result in undesirable conditions for the mill. Getting real-time knowledge of what is going on inside your mill Are you looking ..... to optimize your
Applying grindcurves to mill operation and optimisation ...
The operation of AG/SAG mills is sensitive to mill filling, therefore developing grindcurves to relate mill filling to performance indicators such as throughput, power draw, and product size can assist in achieving optimal mill operations. The throughput, power draw, and product size have been shown to peak at different mill filling levels.
Throughput optimisation in milling circuits
SAG Mill Discharge. Controlling the feed and discharge of a mill is mostly a stabilisation exercise – you need to be able to quickly and accurately control the mill feed rate. If the mill feed setpoint is changed, then the actual feed rate needs to stabilise at the new target in a short period of time. The feed rate setpoint can then be tied ...
SOSSEGO SAG MILL - 10 YEARS OF OPERATION AND OPTIMIZATIONS ...
VANCOUVER 2015 SOSSEGO SAG MILL – 10 YEARS OF OPERATION AND OPTIMIZATIONS A. M. Mendonça1, D. Luiz1, M. Souza1, G. Oliveira1, H. Delboni Júnior2, and *M. G. Bergerman3 1 Vale S.A. Mina do Sossego, S/N Vila do Sossego Canaã dos Carajás, Brazil 68537 00 2 HDA Serviços Ltda., Professor - University of São Paulo Av. Prof. Mello …
Minerals | Free Full-Text | Optimizing Performance of SABC ...
The final plan was to increase the ball charge in the SAG and ball mill to 10% v / v and 27% v / v, respectively; set the upper limit of the operating power in the ball mill to 5800 kW; use a TRIO TC Series crusher (without a power-/feed rate–controlling device, but with a feed bin) to crush pebbles for recirculation back to the SAG mill feed ...
Grinding Optimization Spotlight | Intellisense
The Ball Charge in SAG and Ball Mills, in other words, the fraction of the mill volume constituted by balls, has a significant impact on the performance of a mill and the greater Grinding circuit. Running at the wrong Ball Charge adversely impacts not only throughput but the consistency of the product particle size (P80) as well.
SAG & Ball Mill Liner | Tega Dynamix -Tega Industries
Mill liner is the flagship business of Tega with customers spread over 68 countries with DynaMax range. Tega DynaMax range comprises of an innovative product portfolio, delivering comprehensive solutions in mill lining. DynaPrime – DynaPrime is a one stop solution for all your grinding needs in larger size SAG, AG and Ball mill.
Predictive Optimization of SAG Mill Wear Using Rocky ...
Predictive Optimization of SAG Mill Wear Using Rocky Rocky DEM helps predict liner wear and fine-tuning optimum conditions for SAG mill operation . Share this No one in industry is happy with downtime losses incurred due to a machine that won't operate. In the mining sector, these losses can be particularly large.
Optimize Mining and Processing Rates - DJB Consultants
Optimizing Mill Feed Size. Mine to Mill Mine to Mill SAG Mill: "Tent" Diagram: Higher Speed (Brodie, Barratt) – Predicted Operation SAG Mill Grate – Curved Bolt Pattern Our Clients: info@djbconsultantsinc Tel: 604-608-6195: Suite 1000-355 Burrard St, ...
BrainWave control solutions for mining operations
BrainWave SAG mill BrainWave is a proven control system that stabilizes the operation of the SAG mill, resulting in improved operation and in-creased production. BrainWave SAG mill is a unique control pack - age using patented model-based predictive adaptive control technology. It is well known within the mining industry that effective
YANACOCHA GOLD SINGLE STAGE SAG MILL DESIGN, …
1 YANACOCHA GOLD SINGLE STAGE SAG MILL DESIGN, OPERATION, AND OPTIMIZATION Ben Burger 1, Luis Vargas, Hamer Arevalo, Sergio Vicuna1, Jim Seidel2, Walter Valery 3, Alex Jankovic, Roberto Valle ...
SAG mill wear optimization using DEM simulation - Rocky DEM
To achieve SAG mill equipment optimization, you should combine practical experiencewith pass-or-fail evaluation studies that modulate project resources or operational conditions. We do not recommend that you carry out a project only with in-the-field trial- …
Ask an Expert - Optimizing Your Hammermill Operation
However, a rotary feeder is a volumetric feeding device and its actual feedrates can only be inferred. Using a weighbelt or loss-in-weight feeder or a similar device is recommended to provide an actual weight-based feedrate to the hammermill. This controlled-rate equipment will assist significantly in optimizing your hammermill's performance.
SAG Mills Archives - Mineral Processing & Metallurgy
AG and SAG mills are now the primary unit operation for the majority of large grinding circuits, and form the basis for a variety of circuit configurations. SAG circuits are common in the industry based on: High single-line capacities (leading to capital efficiency) The ability to mill a broad range of ore types in various …. Read more.
What we do - Molycop
QUALITY MEANS LONGER LIFE PRODUCTS. As the largest and most experienced supplier of mining consumables and associated services worldwide Molycop's quality is widely recognized as the industry leading standard. We proudly go to the ends of the earth for our customers and deliver highly developed and innovative products, which are routinely tested in our state-of-the …
Process optimisation for your SAG Mill - FL
Boost and protect your SAG Mill. Our total process control and optimisation system will lower energy usage while increasing production and extending the life of liners It's a cost-efficient way to significantly lift the performance of your mill operations. Reduce critical impacts. With LoadIQ and ECS/ProcessExpert you'll be able to almost ...
Grinding circuit optimisation to increase throughput and ...
Keeps the mill rolling. LoadIQ utilises our mill scanner smart sensor technology to determine the optimum mill load, increasing throughput by 3 – 6%, with some even greater than a 10+% increase in tonnage. Achieving long-term stability in grinding circuits. If your grinding circuit operation is unstable, the productivity, quality and ...
Ore sorting the road to optimizing your operation - ...
Optimized Operations. Sensor-based ore particle sorting can be used to pre-concentrate ROM ore feed, SAG Mill scats and low grade or waste stockpiles. Plant throughput increase, reduced operating costs and mine optimization should be considered in evaluating sorting as well as increased recovery in flotation and leach circuits.
sag mill ball charge calculation
Optimizing your SAG mill operation . 2007 3 21 The mill discharge from these mills consists of slurry which goes to the ball mills for further grinding and coarse pebbles/rocks which are crushed and sent back to the mill To maximize the capacity of these circuits the general practice is to use grates with pebble ports reaching 100 mm instead of normal grate openings to increase the
Studies Show Snags to Mill Optimization | E & MJ
Studies Show Snags to Mill Optimization. More than 100 virtual operators have been deployed over the course of three years at Los Bronces mine. Above, the Los Bronces mine milling control room in Chile. (Photo: Anglo American) Two studies identify obstacles to SDGs, while a major miner announces the windfall from deploying automation.
Noise Monitoring That Prevents Mill Damage | Brüel & Kjær
Protecting and Optimizing Mills The main benefits of this type of reliable SAG mill monitoring are accurate and repeatable decibel signals at the various frequencies – information that is used to protect the mills. The next phase of the project is to provide measurements that can help customers operate a SAG or AG mill optimally.
Optimizing your SAG mill operation - International Mining
The optimal performance of AG/SAG mills is the key to successful plant operation. All AG/SAG mills using radial or curved pulp lifters suffer from inherent material transport problems such as slurry and pebble pooling, which decrease throughput and increase energy consumption.
Optimize Production | Emerson US
In mining operations, the comminution process reduces mined solid materials through crushing, grinding and other means. SAG and Ball mills are one of the most critical pieces of equipment for the process. Mining operators need to optimize grinding mill performance, and reliability to ensure tight shutoff and better recovery.