copper sag mill discharge

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conveyor discharge sag

Copper has been weakly and irregularly re-precipitated in the upper zones of the deposits. Secondary sulphides are dominantly chalcocite with minor covellite and rare native copper. ... Discharge from each SAG mill will be cycloned to recover the finished product whilst unfinished product will be evenly split between two ball-mill circuits. The ...

Increase throughput and capacity in SAG mills

Optimized discharge-end serviceability is particularly important for an open-ended mill as the grate design is the primary mechanism to control the slurry pool level. Therefore, the ability to easily iterate grate configurations is imperative for process performance optimization, especially during early operation or when there are significant ...

Development of an Innovative Copper Flowsheet at Phu Kham

SAG milling extends itself to many applications due to the range of mill sizes available. They can accomplish the same size reduction work as two or three stages of crushing and screening, a rod mill and some or all of the work done by a ball mill. SAG mills are also an optimum solution for wet grinding since crushing and screening in these ...

Outotec® Open Ended Discharge Grinding Mill - Outotec

the product of a gyratory crusher. The discharge of the SAG mill is transferred onto a vibrating screen. The oversize material is crushed in a pebble crusher, and the undersize is combined with the ball mill (6.71 × 9.91 m) discharge and sent to the cyclones. The SAG mill in phase 1 uses two 4100 kW synchronous motors and works

SAG MILL DISCHARGE SCREENS-TROMMEL vs. VIBRATING …

The apron feeders discharge on to a 1.1 m wide conveyor belt which carries the ore into the mill grinding circuit. The primary grinding circuit consists of an 8.3 m diameter × 4.0 m grinding length, 5,222 kW SAG mill in closed circuit with a single deck vibrating screen and a cone crusher.

Changing sag mill liners type from Hi-Low to Hi-Hi at ...

Copper Sag Mill Discharge - keramiekopschool.be. Copper Sag Mill Discharge. C&M Mining Machine has been delivering solutions for demanding aggregate applications worldwide for over 35+ years. Our comprehensive portfolio covers crushers, screens, feeders, trackmounted and wheelmounted units, stationary plants and related automation solutions ...

sag mill discharge screens - les6quarts.be

Based on the high throughput and coarse grind, AG mills produce coarse grinds often classify mill discharge with screens and trommel. SAG mills grinding media includes some large and hard rocks, filled rate of 9% – 20%. SAG mill grind ores through impact, attrition, abrasion forces.

The future of SAG mills - International Mining

Ideally, the discharge rate through a grate-pulp lifter assembly should be equal to the discharge rate through at a given mill hold-up. However, the results obtained have shown that conventional pulp lifter designs cause considerable restrictions to flow resulting in reduced flow capacity.

copper sag mill discharge - lineco.co.za

There are several SAG mill specific design tests available to determine the amenability of an ore to SAG milling and the resultant SAG mill specific energy. Recent projects that have failed to achieve design throughput have typically failed to take sufficient heed of the indications of ore competency in the test work data or analysis of the data.

Paper # 25 - Copper Mountain Overview on the Grinding ...

copper sag mill discharge bellareginanl. Optimum SAG Mill Discharge Density Grinding P80 sag mill product is the 80 % passing particle size in sag mill discharge SAG mill sol SAG MILL DISCHARGE SCREENS TROMMEL vs 20 SAG MILL DISCHARGE SCREENS TROMMEL vs VIBRATING Tony Moon RTZ What I'd like to talk about is probably one of the nastiest bits of mill design for a grinding

Optimizing your SAG mill operation - International Mining

the SAG mill discharge and therefore a relatively high design pebble recirculation in the SAG mill. Space was made available for future pebble crushing capacity when hard primary skarn ore becomes a significant proportion of the feed blend in later years of operation. The …

Antamina Copper-Zinc Mine - Mining Technology | Mining ...

Replacing traditional steel cast mill liners with new lightweight composite liners is another way to increase throughput of mills. Major gold and copper operations have already started doing this in mills up to 40' Ø and seen an improvement in the slurry discharge of up to seven percent.

sag mill discharge screen - safpaec.co.za

SAG mill is fitted with a dual pinion drive (6.5 MW per pinion) and is driven by a variable-speed drive comprised of a SER/Hyper synchronous drive. The 24 ft × 39 ft (13 MW) ball mill is driven by dual, 6.5 MW wound-rotor motors through reduction boxes and gear and pinion drives. The SAG mill discharge is screened on a rotating trommel screen.

Modelling SAG milling power and specific energy ...

the product of a gyratory crusher. The discharge of the SAG mill is transferred onto a vibrating screen. The oversize material is crushed in a pebble crusher, and the undersize is combined with the ball mill (6.71 × 9.91 m) discharge and sent to the cyclones. The SAG mill in phase 1 uses two 4100 kW synchronous motors and works

Mill (grinding) - Wikipedia

SAG mill/ball mill combinations. The SAG mill (5000 x 2800 mm, 750 KW) reduces the ore to minus 1mm. The SAG mill discharge is cycloned, with a cut 80% less than 75 µm, the underflow passing to a ball mill (4000 x 6000 mm, 1.4 MW), with the cyclone overflow joining the ball mill discharge. The combined ball mill discharge is then cycloned ...

SM at Kennecott Utah Copper Introduction

The Copper Mountain SAG mill is 10363 mm [34 feet] in diameter and 6096 mm [20 feet] long. It is a grate discharge mill with an inside diameter of 10363 mm [34 feet] and a grinding length of 5334 mm [17.5 feet]. The mill is driven by two 8,500 horsepower ABB motors. Figure 2 - The 34' x 20' SAG mill

INCREASING SAG MILL CAPACITY AT THE COPPER …

Copper Mountain first feed to the SAG mill occurred in late May, 2011. The circuit began ramp up in mid-June of that year, with more consistent operating run times on the SAG and Ball mills. Plant throughput in ... SAG mill discharge screen opening slot size and initiating the overall expert system into the control

sag mill discharge screen

and discharge grates on the Ø34' SAG mill. However, following inspection, the scope of works was extended to include replacement of all the shell plates, along with the discharge end outer grates. The Ø24' ball mill also required feed end outer and inner plates, as well as shell and discharge plates, to be replaced. PROCESS

CASE STUDY: PROMINENT HILL - Outotec

Similar 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 …

Changing sag mill liners type from Hi-Low to Hi-Hi at ...

one SAG mill feeding two ball mills in a closed circuit with a hydrocyclone battery (Figure 1). The aim of the ball mill/ hydrocyclone circuit is to produce the optimum flotation feed particle size while maintaining grind throughput. The optimal operating point is a trade …

(PDF) SAG mill circuit optimisation at Ernest Henry Mining

with the ball mill discharge in a common sump and is pumped to 840mm . ... correlation between copper and gold in the primary ore zone however ... SAG mill …

Commissioning and Optimisation of the Phu Kham Copper …

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. Use Add Comment = to comment on someone else's ...

Optimizing your SAG mill operation - International Mining

Jan 01, 2015· It is also possible to use the −1″ fraction that shows a positive effect on the SAG mill throughput (the power consumption decreases, but the specific energy decreases more) because the mineral goes faster to the mill discharge, leaving a greater part …

What's the Difference Between SAG Mill and Ball Mill ...

with the ball mill discharge in a common sump and is pumped to 840mm . ... correlation between copper and gold in the primary ore zone however ... SAG mill …

SAG mills (semi-autogenous grinding mills) -

Similar 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 …