size distributions in AG/SAG mills. The existing models and understanding of grate discharge and classification are known to be flawed and have been identified as one of the key limitations in AG/SAG modelling. The aim of this thesis is to improve on the current understanding of discharge in …to specific ball/SAG mill operations. Mill capacity, ball size and other parameters are used to select and specify the design features for each installation. Besides removing worn grinding media from the ball mill discharge and saving energy, trunnion magnets have other advantages that appeal to …

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• Rod mill discharge • SAG mill discharge • Wet crushers The Warman ® WRT ® impeller and throatbush combination's new four vane impeller design incorporates a unique vanelet on the back shroud which streamlines the flow through the impeller.

In Fig. 3, Fig. 4 the data is presented in order to show the effect of the fresh feed size, particularly the % −6″ +1″ (−152 +25 mm), on the SAG mill power consumption (Pc) in kW and on the SAG mill specific energy consumption (Ecs) in kW h/t, obtained by dividing the power consumed (kW) by the fresh feed rate (t/h).Furthermore, the spider and discharge cone are segmented and removable. Together these solutions minimize the time and cost associated with mill relining and discharge-end servicing. 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.

SAG mill power draw models are used in mill design and grinding circuit modelling to predict ... D, mill effective diameter, (m) the nominal diameter inside the liners of the mill. Determined as ... pulp slurry, as measured at the mill discharge.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 with a constant 10.5 rpm rotational speed in two directions, and SAG mill of phase 2 uses two 3700 kW synchronous motors and works with variable speed in two directions. Since this

Single stage SAG Mills are very beneficial in reducing CAPEX for plants with a staged throughput approach. When future tonnage is to be increased, the SAG Mill can feed downstream ball milling to boost capacity. Fuller-Traylor SAG/AG Mills range in size from 4.3m through 12.2m in diameter with powers as high as 28,000 kW.Semi-autogenous grinding mills (SAG mills) are tumbling mills that most commonly have a shell diameter-to-length ratio of around two. With this high aspect ratio, SAG mills generate both thrown and cascading ball-milling actions with shell linings shaped to lift and to throw alloy steel grinding balls of up to 150 mm (6 in.) in diameter. These

shown in Figure 1, and included the SAG mill itself, a new oversize recycle Crusher, a double deck discharge screen as well and improved and additional downstream equipment. Proceedings of the 40 th Annual Canadian Mineral Processors Conference – 2008D80 SAG feed, mm 84.3 84.3 62.5 J Total SAG mill, % 27 32 32 J B SAG 14.7 14.7 14.7 J B BM1 32 32 33 J B BM2 32 32 33 Summary of Results The integral optimization is limited by boundary conditions, such as the maximum powder factor depends on bench stability rather tan benefit at the SAG mil. Main results and conditions are listed below:

The SAG mill disch arges onto a trommel ... The improvement in the mill discharge sample ... Experience in the magnetic treatment of drills and end mills up to …The trunnion magnet is mounted at the SAG ball mill discharge point and is used in place of a trommel screen. ... approximately 28 in. long, covers an arc of about 210°, and attracts chips and scats to the inside diameter of the barrel. As the ball mill slurry discharges through the barrel, eight strategically placed lifters inside the barrel ...

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

typical fine ag/sag mill discharge gradation envelope of ag/sag & rod mill product sizes 1 1 10 100 1000 10000 100000 c u m % p a s s i n g microns typical fine rod mill discharge gradation typical coarse rod mill discharge gradations log-log graph paper particle size analyses. mill operators conferenceBy 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 …

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.Mill power where D = mill diameter L = cylindrical length Ld =conical length n = fraction of critical speed where ρp = slurry density ρc = grinding charge density θTO = slurry toe angle for overflow discharge mills (= 3.395 rad) = θT for grate discharge mills θs, T = geometrical parameter Ch e gLN r r zr motion r zr r r z power p Nr r zr ...

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 40 ft (12,192 m) length 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 6.6based on pilot plant SAG mill discharge size distributions, pilot plant SAG mill specific power, pilot plant ball mill specific power, pilot plant product size distributions and Bond-type calculations (as reported by Rowland (Rowland, 1982) and modified by Minproc). SAG Mill Dimensions: The SAG mill was designed for monzonite ore, with ...

The discharge grates of the SAG mill were identified as a key component in the SABC circuit, and their design is a crucial factor in the mill's performance [17] [18][19][20][21]. The initial ...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.

SAG & AG mills - up to 11.6 m (38') diameter. ... self-aligning rocker white metal bearings for the. Read more. TENOVA - Mills. ... China Vertical Slurry Pumps Used for Sag Mill Discharge - China ... China Vertical Slurry Pumps Used for Sag Mill Discharge, Find details about ... The SS is built with bearing assemblies specifically designed for ...down menu. The mill diameter input relates to the inside-shell dimension. The model actually requires the inside liner diameter and hence the liner thickness must also be input. The required length to be input depends on whether the mill is an overflow or a grate discharge machine. …

PRI worked closely with the customer to develop a design that would help decrease their downtime on their 34' diameter by 17' long SAG mill. The cone supplied with PRI ceramic Matrix technology lasted over 12 months! This also led to more business at …Note the size of the mill: Why does the diameter need to be so big? [image: (135-6-2)] 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.

efficiency of the mill discharge system for slurry and pebble removal, and lining ... limited mill size for many years to 36-ft diameter. Today, 20 MW mills are in operation and ... circuiting of the SAG mill and ball mill additions topping the list.The charge was emptied out from a SAG mill treating open cast UG2 ore. The mill is a single-stage RoM overflow SAG mill closed with a cyclone and a flash float cell with a re-circulating load of ...