power requirement of sag mill for 15tonshr concentrator

SAG Mill Grinding Circuit Design - 911metallurgist

2016-6-6  The unit power requirement for SAG milling (both individually and as a fraction of the total circuit power) is worthy of comment. ... conducting SAG mill maintenance shuts down an entire concentrator

More

Evolution of SAG Mill Process Control at the Xstrata ...

2021-4-20  445 PAPER 28 Evolution of SAG Mill Process Control at the Xstrata Nickel Raglan Operation Erik Bartsch1, Chief Engineer Guy Comeau2, Senior Metallurgist Colin Hardie3, Former Chief Metallurgist 1 Process Control Group, Xstrata Process Support 6 Edison Rd, Falconbridge, Ontario

More

Recent International Concentrator Start-ups Do and

2018-2-20  SAG MILL BALL MILLS MILL DESIGN DATA. These projects involved SAG mills from 26 to 36 ft in diameter, with installed power in the range 9.7 to 16.8 MW using single, twin pinion, and gearless technology for drives over 16 MW. The ball mills used varied from 13.5 to 25

More

THE COMMINUTION CIRCUIT DESIGN FOR THE

2018-2-20  The Bond ball mill work index (BWI) data were used to determine the ball mill power requirement. Table 1 summarises the 75th percentile values for the various comminution parameters used to determine plant throughput and mill power draw. A more complete list of comminution data is provided in Appendix 1.

More

Publications - SMC Testing

2021-8-14  Copper Concentrator Autogenous Grinding Practices At Mount Isa Mines Limited Dem Validation For A Scale Model SAG Mill The Modelling Of Autogenous And Semiautogenous Mills Design Of The 40 Foot SAG Mill Installed At The Cadia Gold Copper Mine The Prediction Of Power Draw In Comminution Machines Developments In AG/SAG Mill Modelling

More

Energy Use of Fine Grinding in Mineral Processing

2013-4-25  compared to the power used by a semi-autogenous mill and a ball mill in a primary grinding circuit; a ball mill can have an installed power of up to 15 MW, while installed power for a SAG mill can go up to 25 MW. However, the energy used for fine grinding is still significant. Moreover, as this paper seeks to demon-

More

Optimization of hydrocyclone classification by on-line ...

2018-5-29  fine material, which increases electrical power requirements ... At an example concentrator the typical target grind size for flotation feed is aP 80 (point or particle size that is 80% finer in the overflow) in the +150 to +250 micron (100 to 60 mesh) ... • Degradation or failure of SAG mill pebble removal system

More

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

2019-11-26  The biggest characteristic of the sag mill is that the crushing ratio is large. The particle size of the materials to be ground is 300 ~ 400mm, sometimes even larger, and the minimum particle size of the materials to be discharged can reach 0.1 mm. The calculation shows that the crushing ratio can reach 3000 ~ 4000, while the ball mill’s ...

More

A method for predicting the specific energy requirement of ...

2008-2-1  The ball mill circuit specific energy will be dictated by the AG/SAG mill circuit product size (so-called transfer size), the final grind size and ore hardness and its value may also be very different to W b. However, it is expected that the sum of the AG/SAG mill circuit specific energy and the ball mill

More

(PDF) Power-based comminution calculations using Ausgrind

In contrast Ausgrind uses a Bond-style power model to estimate total specific energy and an empirical model to estimate the SAG mill Ecs as a function of DWI (or other comminution

More

Evolution of SAG Mill Process Control at the Xstrata ...

2021-4-20  445 PAPER 28 Evolution of SAG Mill Process Control at the Xstrata Nickel Raglan Operation Erik Bartsch1, Chief Engineer Guy Comeau2, Senior Metallurgist Colin Hardie3, Former Chief Metallurgist 1 Process Control Group, Xstrata Process Support 6 Edison Rd, Falconbridge, Ontario

More

SIMINE Gearless mill drives - assets.new.siemens

2021-7-31  Whether you’re talking about SAG or a ball mill, space is a delicate issue, especially in the concentrator. That’s why we always design our Gearless mill drives drives to combine maximum performance with limited space requirements. Suitable foundation and adequate ground conditions Since our solutions have a low motor weight, this notice-

More

A method for predicting the specific energy requirement of ...

2008-2-1  The ball mill circuit specific energy will be dictated by the AG/SAG mill circuit product size (so-called transfer size), the final grind size and ore hardness and its value may also be very different to W b. However, it is expected that the sum of the AG/SAG mill circuit specific energy and the ball mill

More

Energy Use of Fine Grinding in Mineral Processing

2013-4-25  compared to the power used by a semi-autogenous mill and a ball mill in a primary grinding circuit; a ball mill can have an installed power of up to 15 MW, while installed power for a SAG mill can go up to 25 MW. However, the energy used for fine grinding is still significant. Moreover, as this paper seeks to demon-

More

Gearless mill drives - ABB

2021-2-16  • 28 MW GMD for a 40' SAG mill • 28 MW GMD for 42' SAG mill Whether it is size or an installation at the highest altitude (4600 m.a.s.l.), ABB’s GMDs are well positioned to contribute to the building of larger and ever more powerful mills. — Leading the gearless mill drive evolution The ABB gearless mill drive (GMD) is

More

Optimization of hydrocyclone classification by on-line ...

2018-5-29  fine material, which increases electrical power requirements ... At an example concentrator the typical target grind size for flotation feed is aP 80 (point or particle size that is 80% finer in the overflow) in the +150 to +250 micron (100 to 60 mesh) ... • Degradation or failure of SAG mill pebble removal system

More

Estimated Water Requirements for the Conventional ...

2012-5-3  water usage. The crushed ore is transferred to a semiautogenous (SAG) mill or ball mill where the ore is further reduced in size. Water is added to the ball mill, in which a slurry that usually contains from about 20 to 55 percent solids is produced (Singh, 2010; International Mining, 2011) (see fig. 2). The

More

Publications - SMC Testing

2021-8-14  Copper Concentrator Autogenous Grinding Practices At Mount Isa Mines Limited Dem Validation For A Scale Model SAG Mill The Modelling Of Autogenous And Semiautogenous Mills Design Of The 40 Foot SAG Mill Installed At The Cadia Gold Copper Mine The Prediction Of Power Draw In Comminution Machines Developments In AG/SAG Mill Modelling

More

SAG Mill for Small Operation - Grinding Classification ...

2021-8-16  Is it advisable to use a SAG mill for small, say 2000 TPD concentrator operations? The processing, in this case, is a complex zinc/tin mineral and we are afraid a SAG would P80 produces too much fines (since the tin is to soft brittles) (tin cassiterite).The mineral is marmatite and casiteritre

More

HG finish the production of SAG Mill Liner for gold ...

Failure analysis of the old SAG mill shell liners. Since the commissioning of φ 9.15 × 5.03 semi-autogenous mill in Baima concentrator, the operation rate is only about 55% due to the irregular damage and replacement of mill liners, which seriously affects the economic benefits. The

More

SIMINE Gearless mill drives - assets.new.siemens

2021-7-31  Whether you’re talking about SAG or a ball mill, space is a delicate issue, especially in the concentrator. That’s why we always design our Gearless mill drives drives to combine maximum performance with limited space requirements. Suitable foundation and adequate ground conditions Since our solutions have a low motor weight, this notice-

More

Energy Use of Fine Grinding in Mineral Processing

2013-4-25  compared to the power used by a semi-autogenous mill and a ball mill in a primary grinding circuit; a ball mill can have an installed power of up to 15 MW, while installed power for a SAG mill can go up to 25 MW. However, the energy used for fine grinding is still significant. Moreover, as this paper seeks to demon-

More

Gearless mill drives - ABB

2021-2-16  • 28 MW GMD for a 40' SAG mill • 28 MW GMD for 42' SAG mill Whether it is size or an installation at the highest altitude (4600 m.a.s.l.), ABB’s GMDs are well positioned to contribute to the building of larger and ever more powerful mills. — Leading the gearless mill drive evolution The ABB gearless mill drive (GMD) is

More

to Design and Supply the World’s Largest SAG Mill in ...

2010-10-5  “Concentrator plants keep getting larger and larger,” he says. “This new mill will be a significant development for the future.” He goes on to explain that “a single line grinding circuit with a 42ft (12.8m) SAG mill allows for much higher concentrator throughputs, as compared to using a dual line grinding circuit using two SAG mills.

More

Optimization of hydrocyclone classification by on-line ...

2018-5-29  fine material, which increases electrical power requirements ... At an example concentrator the typical target grind size for flotation feed is aP 80 (point or particle size that is 80% finer in the overflow) in the +150 to +250 micron (100 to 60 mesh) ... • Degradation or failure of SAG mill pebble removal system

More

The influence of mill speed and pulp density on the ...

2009-8-26  The absorbed power is calculated by multiplying the torque on the driving shaft with the shaft speed (rad/sec) and hence excludes any losses associated with the gearbox and motor. The pulp weight in the mill is obtained by subtracting the mill weight during the test from the empty mill weight, including the ball charge, at the start of the test ...

More

Estimated Water Requirements for the Conventional ...

2012-5-3  water usage. The crushed ore is transferred to a semiautogenous (SAG) mill or ball mill where the ore is further reduced in size. Water is added to the ball mill, in which a slurry that usually contains from about 20 to 55 percent solids is produced (Singh, 2010; International Mining, 2011) (see fig. 2). The

More

Toromocho – A giant in high-altitude mining

2021-2-16  The three gearless mill drive (GMD) systems are the ABB most powerful ever made. The GMD for the 40-foot SAG mill has a power rating of 28 megawatts (MW), and the GMDs for the two 28-foot ball mills have a power rating of 22 MW. They are the largest diameter and most powerful SAG and ball mills drive systems at the highest altitude installed to ...

More

SAG Mill for Small Operation - Grinding Classification ...

2021-8-16  Is it advisable to use a SAG mill for small, say 2000 TPD concentrator operations? The processing, in this case, is a complex zinc/tin mineral and we are afraid a SAG would P80 produces too much fines (since the tin is to soft brittles) (tin cassiterite).The mineral is marmatite and casiteritre

More

美卓球磨机.ppt - book118

2017-8-31  The 38’ SAG Mill at Freeport Indonesia has already proven discharge capacity at new feed rates of over 6,000 mtph. The largest mill line offered to date (2004) includes a 33,000 HP (24.6MW) SAG Mill and two 25,000 HP (18.6MW) Ball Mills for a total installed power of 83,000 HP/61.8MW. This list speaks for itself.

More

Copyright © 2020.Company name All rights reserved.SiteMap