sag mill optimisation

SAG Mill Optimisation and Increasing Throughput at the …

The work involved participating in and overseeing the redesign of the SAG mill liner systems and developing operational strategies for maximising throughput through to the end of mine life. Ausenco's comminution optimisation tool, Ausgrind, was used to benchmark and analyse plant data with empirical models, predict circuit performance for ...

A Hybrid Intelligent Framework for Maximising SAG Mill …

In mineral processing plants, grinding is a crucial step, accounting for approximately 50 percent of the total mineral processing costs. Semi-autogenous grinding mills are extensively employed in the grinding circuit of mineral processing plants. Maximizing SAG mill throughput is of significant importance considering its profound …

The basics of grinding circuit optimisation

Mill feed size optimisation Mine to mill optimisation tends to dominate discussions around feed size optimisation, followed reasonably closely by secondary crushing, given the magnitude of the benefits that are often associated with those efforts. In some instances SAG mill feed size optimisation may involve something considerably less

Optimisation of secondary crushing stage before Single Stage SAG mill

Optimisation of secondary crushing stage before Single Stage SAG mill at Freda Rebecca ... SAG mill has a diameter of 16 ft, length of 24 ft, installed power of 2 MW and operate in closed circuit ...

Optimisation of the Cadia Hill SAG mill circuit

PDF | On Sep 1, 2001, S. Hart and others published Optimisation of the Cadia Hill SAG mill circuit | Find, read and cite all the research you need on ResearchGate

SAG mill optimisation using power-based simulations

Ausgrind program improvements include: Mill liner wear and life prediction for any liner/lifter design. SAG mill slurry pooling model to predict the onset and effect of …

A Hybrid Intelligent Framework for Maximising SAG Mill …

purposes, SAG mills utilise a combination of steel balls and coarse ore to achieve the desired discharge particle size [2]. An essential performance metric for a SAG mill is its throughput, which measures the volume of processed ore per hour [3]. SAG mill throughput maximisation stands as a critical priority, given its profound financial outcomes.

A Hybrid Intelligent Framework for Maximising SAG Mill …

PREDICTIVE OPTIMIZATION OF SAG MILL WEAR USING …

predicting liner wear and fine-tuning optimum conditions for SAG mill operation. CASE SCENARIO Consider a large SAG mill with a diameter of 10.97 m, as shown in Figure …

Milling Optimisation and Metfest

Talking about a SAG mill, then turn off the size distribution instrument, or the mill charge instrument and leave the control strategy running, which is likely still balancing the weight in the ...

AG/SAG mill acoustic emissions characterisation under …

Also, fundamental studies around this area have been neglected over the years. The basic concept of the mill acoustic emission could support and improve the understanding and optimisation of AG/SAG mill. It further enables recent mining industry drive for reduced on-site footprint, owing to health and safety concerns.

BOCCOST Modelling Tracking and Relating Mine and Mill …

The mining and milling groups at Batu Hijau are tasked with increasing SAG mill throughput by approximately ten per cent. Avenues used for this process are blasting and crushing optimisation, ore blending and predicting SAG mill throughput in relation to the geological model. This is in line with traditional æMine to MillÆ studies. At Batu …

SAG mill optimisation and increasing throughput at the …

CITATION:Chandramohan, R, Braun, R, Lane, G, Hollis, K, Le, J and Baas, D, 2018. SAG mill optimisation and increasing throughput at the Phu Kham Copper-Gold Operation - a success story, in Proceedings 14th AusIMM Mill Operators' Conference 2018, pp 113-128 (The Australasian Institute of Mining and Metallurgy: Melbourne).

Analysis of Operating Variables through DEM Simulations for SAG Mill …

In this presentation, Levi Guzman, Molycop Technical Director – Applications Services, explains the methodology behind DEM modelling and how it can be used to optimise ball size, liner design, mill speed and discharge component design for …

MillSlicer VIP | Molycop

Improve the throughput and efficiency of your SAG/AG mill by measuring the mill volume, steel charge per cent, toe angle and liner impacts. Close Search X. Products & Services. Resources. Other Content ... including …

Mount Carlton SAG Mill Optimisation

Before the change, the SAG mill power utilisation was about 65.1%. This increased to 72.4% post the grate change. An analysis of production data following the change in 2016 showed 80% SAG mill ...

Implementation of Mine to Mill Blast Optimisation at …

throughput of semi autogenous (SAG) mills by optimising the blast fragmentation. A number of test blasts were conducted during the period May 2000 to January 2002 and the ore from these blasts was campaigned through the mill. The data from these trials suggested up to 15 per cent increase in the SAG mill throughput with high energy blast ...

AusIMM Perth Branch

AusIMM acknowledges the Traditional Custodians of the land on which we work, meet and live across the world and pay our respects to Elders past, present and emerging.

Ø Effect of SAG Mill Feed Size Distribution and Ore …

OPTIMISATION OF THE CADIA HILL SAG MILL CIRCUIT S. Hart (1), W. Valery (2), B Clements (1), M. Reed (1), M. Song (3) and R. Dunne (4) ... SAG mill speed was thus lowered and charge level raised until the noise levels from the mill dictated an increase in mill speed was possible. As a result of the ball throw issue lifter face angle was

Choosing a SAG Mill to Achieve Design Performance

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Whitepaper Mill Optimisation

SAG mill circuit No. of mills # 1 SAG mill motor power installed kW 28,000 Motor type Gearless Mill manufacture FL SAG mill dimensions diameter length 40 ft (12,192 m) 26 ft (7,924 m) Mill direction Bi-directional Mill speed – range % critical 0-80 Mill speed – nominal % critical 76 SAG mill specific energy kWh/t 6.6 Grinding media Mm 125

Benefits of optimisation and model predictive control on a …

Anglo American Platinum employs numerous fully autogenous (AG) primary mills. All are under Neuro-Fuzzy control, applied in a manner suitably robust to perform in the non-linear, highly unmeasured environment of primary milling (Steyn et al., 2010).These mills have recently been fitted with model predictive controllers that enable real-time …

SAG Mill | Autogenous and Semi-Autogenous Mills

Your operation requires a Semi Autogenous Mill (SAG mill) or Autogenous Mill (AG Mill) that is flexible, durable, cost-efficient and tailored to your specific needs and use cases. That's why we offer a full product range from 4.3m to 12.2m in diameter with multiple options for configuration of designs to suit your operation:

OPTIMISATION OF THE SOSSEGO SAG MILL

Sossego was the first CVRD SAG mill operation to process copper-gold ore. It is located in Para state, south east of Amazon region in Brazil. The comminution circuit was designed to treat 41,000 ...

SAG mill optimisation & increasing throughput at Phu Kham

The Operation's comminution circuit, which comprises of a semi-autogenous (SAG) mill and two ball mills, each with 13 megawatts (MW) of installed power, was …

Optimisation of a SAG mill though trajectory and power milling

Mill filling is an important operational parameter in a SAG mill circuit and by its control and optimisation it can produce significant improvements in production capacity and energy …

Whitepaper Mill Optimisation

and implement design changes used in the optimisation . of the Aktogay 40 ft SAG mill lining system and summarises the operational performance improvements realised and the future design initiatives being investigation. Keywords. …

YANACOCHA GOLD SINGLE STAGE SAG MILL DESIGN, …

2 OPTIMISATION OF THE SINGLE STAGE SAG MILL CIRCUIT AT THE YANACOCHA GOLD MILL ABSTRACT This paper describes the design, the first three years of operation and optimization of a large,

SAG liner support and optimisation

Mill operators searching for ways to increase productivity of their SAG mills can now enjoy the benefits of complete mill service from FLS, including sup-ply, installation, 3D …

STEP CHANGE IN LINER DESIGN FOR THE KANSANSHI …

Criteria for optimisation of the 32ft SAG mill included Discrete Element incorporation of Modelling (DEM), to determine charge motion for definingthe appropriate face angle to achieve the optimal ball and charge trajectory. It was also envisaged to optimise liner life of regular changed parts by the use of alternative wear materials.