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Errection costs of oxide ball mill 24 t

Apr 21, 2020

mine shuts down. In the process, zinc concentrate is reground in a ball mill circuit and mixed with return acid and oxygen in a five-compartment autoclave at 150 C and 1,400 kPa. The elemental sulphur is separated from the product leach slurry by flotation, melted, and hot filtered to produce a high-quality elemental sulphur that is marketed

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    5,5 and 6 h in the ball mill and then further grinding the slip in the MaxxMill to the sieve residues of 6,4 % and 5,5 % over 45 m result-ed in a total energy consumption of 16,9 kWh/t and 17,9 kWh/t, respec-tively, as compared with 27,8 kWh/t when the ball mill alone was

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    the 5 tph oxide test mining operations, the Company anticipates the following operating guidance for the 15 tph oxide mine operation over an 18-month mining program: • The long-lead items for the 15 tph oxide operation, including the ball mill, tailings facility liners and various plant upgrade components have been ordered and are in transit

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    sustaining capital in the Feasibility Study at the end of Year 2. The Optimisation Study now incl udes the ball mill from project commencement and is included in the process plant capital cost. Capital costs shown include contingency amounts which vary between 0% and 15% depending on capital item

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    Mill throughput continued to improve over the September quarter with a total of 2021 ,000978tonnes processed at a grade of 0.84 g/t. The majority of the mill feed during the quarter was hard laterite ore with only a small proportion of oxide ore processed. Pleasingly, the combined throughput achieved in

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  • Major Mines & Projects | La Arena Sulphide expansion Project
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    The ball mills will be in a closed circuit with hydrocyclone clusters. The SAG feed conveyor will feed ore to the SAG mill, 12.19 m diameter by 7.62 m long, flange-to-flange (40 ft diameter by 25 ft long, flange-to-flange) driven by a 24 MW gearless drive. The SAG mill product will discharge to a trommel and then to a pebble wash screen

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    As the rotation speed of the high-speed vibrating ball mill was not adjustable, the factory default setting of 1200 r/min was used. It is generally believed that the ball mill has good grinding efficiency when the interstitial filling fraction of the material is 0.6-1.2 [49, 50]. The

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    Cost of Sales US$/oz 800-900 Total Cash Costs2 US$/oz 725-825 Stripping Ratio (Waste:Ore) tonnes ~3.5 Total Project Capital Expenditures US$ (millions) 1.3-1.6 The long-lead items for the 15 tph oxide operation, including the ball mill, tailings facility liners and various plant upgrade components have been ordered and are in transit

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