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sag mill discharge box

SAG MILL DISCHARGE SCREENS-TROMMEL vs. VIBRATING

the mill from the grates in the slot between the grates and the head. The oversize falls into a bucket wheel on the discharge end of the trommel, gets picked up as the trommel revolves and falls into the stationary rock box. A water jet then squirts that oversize back into the mill through the conical discharge

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SAG Mill Grinding Circuit Design - 911metallurgist

Jun 06, 2016  By combining with SAG discharge and screening on the SAG discharge screens, top size control to the ball-mill circuit feed is maintained while still unloading the SAG circuit (Mosher et al, 2006). A variant of this method is to direct pebble-crushing circuit product to the ball-mill sump for secondary milling: while convenient, this has the ...

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Sag Mill Discharge Chute by Kitson Manufacturing

Discharge. Chute. Date. October 2019. Our KMS team have been working around the clock to hit the delivery date to fabricate this 6t discharge chute for a sag mill @ Northparkes Mines, we still have rubber lining and a three coat painting system to go before completion. The QA process has been completed by our engineer to make sure everything ...

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Improved Relationships for Discharge in SAG/AG Mills

of grate/pulp lifter design in AG/SAG mill discharge. The current understanding from literature lacks knowledge of mill content size distribution and its effect on discharge through the grate at various aperture sizes and radial positions. It also indicates that in order to advance the understanding in a meaningful way, a more mechanistic ...

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

Nov 26, 2019  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.

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Semi-autogenous grinding (SAG) mill liner design and ...

SAG mill liner development draws primarily on practical experience from SAG milling operations supported by computer-based modeling of charge motion in SAG mills and on established good design practice. Liner design needs to respond to the process aspects of mill liner action that are critical to good SAG mill performance, i.e.,

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Major Mines Projects Young-Davidson Mine

The SAG mill discharge reports to the cyclone feed pump box. A centrifugal pump (with one stand-by) with a 298 kW (400 hp) VFD drive delivers the slurry from the cyclone feed pump box to a battery of three (two are typically in operation) ø660 mm (26”) hydrocyclones fed from a common manifold.

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Optimizing your SAG mill operation - International Mining

Mar 21, 2007  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 finer particles) and pebbles (20-100 mm).

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SAG Mill Discharge - YouTube

Sep 10, 2012  This is a ¨low quality¨video of a SAG Mill´s discharge. But in any case, a SAG mill for you to see. xMetallurgist.ca

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Ding Zhang - Metallurgist - Kinross Gold Corporation ...

Sep 14, 2012  SAG mill, ball mill, flotation cell inspections. OSA calibration and trouble shooting Daily plant circuit metallurgical checks, including reagent dosages, addition points, OSA machines, cyclone underflow and overflow, SAG mill trommel and Ball mill discharge box.

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SAG Mill Pulp Dischargers - Grinding Classification ...

Modern Semi-Autogenous (SAG) Grinding Mills can be up to 12 metres in diameter (absorbing up to 20 MW of power) and need to discharge over 2500 tonnes per hour of solids via pulp lifters. Pulp lifters take the form of a radial array of “box-section” channels mounted inside the discharge end wall of the mill.

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Schenck Process Supplies Mill Discharge Screens for Cobre ...

In 2017, First Quantum approached Schenck Process regarding the supply of mill discharge screens for Cobre Panama’s SAG mills, which are among the biggest in the world. The resulting design was a monster mill discharge screen, that was later dubbed the ‘Beast’.

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sag mill conveyor discharge chute - greenrevolution

Bradken SAG-AG Mill Liners Bradken Bullnose Discharge Cones Bradken Vortex ... to form rock boxes, which virtually eliminates wear to the chute structure. ... on the conveyor belt, containing spillage, and controlling dust at the transfer.

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Improving Energy Efficiency in Barrick Grinding Circuits

carry the slurry from the discharge grates to the discharge trommel for exit the mill. The existing from radial pulp lifters were replaced with a proprietary design known as the Turbo Pulp Lifter or TPL™. Figure 2 - Crash stop of SAG mill showing pooling . The mill grate discharge included square pebble ports which hadvery limited open area ...

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Mining Mineral Processing

Effiuent treatment plant Treated water discharge Carbon strip vessel SAG mill screen Crushed ore Gravity screen Intensive leach on-in-leach Carbon fines Primary cyclones Secondary cyclones Ball mill discharge pump box Apron feeder Apron feeders Pre-leech Gravity thickener separators Gravity tailings pump box Induction furnace Kiln Stacker SAG ...

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mills discharge sump Mining Quarry Plant

Apr 01, 2013  COMPARING SAG MILLS AND HPGR ON A CONSISTENT BASIS fed directly to the ball mill or to the ball mill discharge sump [8], it is assumed that the effect on Warman Sump Pump Datasheets, Manuals, Linecards, Case Studies

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Warman MCR 250 Slurry Pump - The Weir Group

SAG mill discharge, along with a variety of other Warman ® pumps in various applications throughout the site. The challenge In the SAG mill application, very coarse slurry is fed directly to the Warman ® AH pumps. Due to these abrasive conditions, the wear life of the incumbent pumps was low, averaging 1,650 hours, and in need of improvement.

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Major Mines Projects Marathon Project

Ball mill discharge is combined with SAG mill screen undersize and feeds a cyclone feed pump box with a single variable-speed cyclone feed pump. A spare cyclone feed pump (wet end) is stored on site to allow for quick change-out.

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Major Mines Projects Lik Project

The SAG mill will operate at a critical speed of 76.9% with a nominal 12% ball load. Discharge from the SAG mill will be directed to a vibrating screen. Undersize from the screens will be discharged to the cyclone feed pump box, and oversize material (15-25% of new feed) will be sent to

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SM at Kennecott Utah Copper Introduction

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

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INTERNATIONAL CYANIDE MANAGEMENT INSTITUTE Cyanide

The milling circuit consists of two semi-autogenous (SAG) mills, SAG 1 and SAG 2, in open circuit and a Ball Mill in closed circuit with a cluster of cyclones. The SAG and Ball mills discharge is pumped to a set of primary cyclones whose under flow reports to the

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Aripuana Polymetallic Project, Serra do Expedito - NS Energy

Undersize screen material from the SAG mill discharge will be transferred to a pump box and the slurry will feed a set of hydro-cyclones. Hydro-cyclone underflow material will be returned to the ball mill, while overflow will be sent back to the flotation feed pump box for further grinding.

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TECHNICAL DATA PRODUCT OPTIONS: Mining’s Final Knife ...

• Flotation • Thickeners • Screen Box Isolation NewCon knife gate valves (KGV) perform extremely • Water Recirculation • Sag Mill Discharge well in both large and fine-coarse mineral processing, and are built to withstand the world’s most severe duty abrasive slurry applications. As a purge-less KGV, we guarantee zero leakage to

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DPO MILL EQUIPMENT LISTING SEPTEMBER 1, 2015

Ball Mill Discharge Pump Box BR-301: SAG Mill (2250 HP) Hardinge 20' x 6' (1966) USED MARKET BR-311: Ball Mill (2250 HP) Nordberg: 14' x 20'-8" (1966) GM-413 USED MARKET: Flash Flotation Cell: 8,5 m3 Louvicourt: CH-300 SAG Mill Feed Conveyor Head Chute: Fabrication CH-301: SAG Mill Retractable Chute Fabrication: CH-302 Screen Oversize Chute ...

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Throughput optimisation in milling circuits

SAG mill discharge control is quite involved due to few interactive variables, such as mill discharge sump level, classification hydro-cyclone variables (feed density, flow and pressure) and water feed rate to the sump. Model predictive control (MPC), which is a multi-input multi-output (MIMO) controller, is very suitable for this purpose. ...

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Polycorp - AG/SAG Mill Liners

AG/SAG Mill Liners. We have supplied rubber pulp lifters for SAG mills up to 40 ft in diameter. We are pioneers in the design of both radial and curved pulp lifters, also design and manufacture Rubber / PolyStl™ grates and discharge systems.

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(PDF) Acoustic emissions monitoring of SAG mill performance

CSIRO Minerals, PO Box 883, Kenmore, QLD 4069, Australia. ... The results indicate that the superior formulation incorporates a size-by-size SAG mill discharge measurement model, which provides ...

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Major Mines Projects Marathon Project

Ball mill discharge is combined with SAG mill screen undersize and feeds a cyclone feed pump box with a single variable-speed cyclone feed pump. A spare cyclone feed pump (wet end) is stored on site to allow for quick change-out.

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DPO MILL EQUIPMENT LISTING SEPTEMBER 1, 2015

Ball Mill Discharge Pump Box BR-301: SAG Mill (2250 HP) Hardinge 20' x 6' (1966) USED MARKET BR-311: Ball Mill (2250 HP) Nordberg: 14' x 20'-8" (1966) GM-413 USED MARKET: Flash Flotation Cell: 8,5 m3 Louvicourt: CH-300 SAG Mill Feed Conveyor Head Chute: Fabrication CH-301: SAG Mill Retractable Chute Fabrication: CH-302 Screen Oversize Chute ...

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APPLYING GOOD PRACTISE TO THE INSTALLATION AND

Figure 1 – Grinding plant, Sag Mill and Ball Mills Circuit . 4 DRIVE ARRANGEMENTS ... a conventional option with gear box, which may be parallel shaft (see Figure 2), or with shafts at 90° (see Figure 3); and a second option that utilizes a multi-pole motor, which eliminates the need for a ... Discharge Position “A” is normally the ...

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LINTECH

l Aggregate - Fine to coarse wet and dry heavy abrasion: sump box, launder, transfer point, chute, dump truck and heavy machinery protection. l Sag mill discharge, chutes/ transfer point, ball mill discharge, pump sump. l Tailing box /launder concrete protection. DIMENSION: l

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Flowsheets - an overview ScienceDirect Topics

Mill drive arrangement. Mill drives are generally located on the outside of the mill to facilitate maintenance. • Mill discharge arrangement. If the SAG and ball mills feed separate pump systems this is not an issue. If the two stages feed the same pump system, the SAG mill usually drives the discharge

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AMIT 135: Lesson 6 Grinding Circuit – Mining Mill Operator ...

SAG Mill Circuit Example — Gold Processing SAG mill circuit example for gold processing [image: (135-6-3)] AG/SAG Mill. AG/SAG mills are normally used to grind run-off-mine 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 Mill

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Mill (grinding) - Wikipedia

SAG mill. SAG is an acronym for semi-autogenous grinding. SAG mills are autogenous mills that also use grinding balls like a ball mill. A SAG mill is usually a primary or first stage grinder. SAG mills use a ball charge of 8 to 21%. The largest SAG mill is 42' (12.8m) in diameter, powered by a

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Used Ball Mills for sale. Allis-Chalmers, Metso Cyclone ...

36 x 20.5 ft (11 x 6.3 m) Unused Metso SAG Mill with 20,100 HP Gearless Drive. - 10.9 x 6.2 meter shell - 20,100 HP (15,000 kW) Gearless Drive - 50 Hz ABB motor - Complete with control rooms and transformers - mill was part of a cancelled project, stored to manufacturer specifications Estim...

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Wear and Failure Analysis of Semi-Autogenous Grinding Mill ...

Feb 27, 2017  Figure 1 shows a schematic cross section of the Chadormalu iron ore complex SAG mill which consist of two rows of liners; (1) feed-end shell liners and (2) discharge-end shell liners. The present case study has been conducted on these well-worn liners. The liners were replaced after comminution of 800 thousand tons of iron ore.

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US3180581A - Ball mill discharge trommel - Google Patents

US3180581A US210975A US21097562A US3180581A US 3180581 A US3180581 A US 3180581A US 210975 A US210975 A US 210975A US 21097562 A US21097562 A US 21097562A US 3180581 A US3180581 A US 3180581A Authority US United States Prior art keywords trommel discharge annulus mill opening Prior art date 1962-07-19 Legal status (The legal status is an assumption and is not a

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

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

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