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isamill vs ball mill regrind

Comparison of energy efficiency between ball mills

2009-6-1  Note: Ball Mill is a 5.6 m (D) × 6.4 m (L) at 2.6 MW. Tower mill is a 2.5 m (D) × 2.5 m (L) at 520 kW. IsaMill is an M3000 mill, 1.1 MW motor with 3 m 3 grinding shell. The comparison illustrates that the power intensity for stirred mill is an order of magnitude higher than that of tower mill.

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IsaMill Technology Used in Effecient Grinding Circuits

2017-12-21  In March 2006, shortly after the IsaMill™ was installed for fine grind duty, the ball mill was relined for a 4 week campaign, and the IsaMill™ feed was coarsened from 20 um to 150um. However during the relining of the ball mill, a much finer ball charge was actually used in the IsaMill™ than used during the testwork, while the IsaMill™ was also operated with a non optimized feed density and rotor

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Regrind Mills: Challenges of Scaleup Abstract

2016-6-3  As a result, regrind mill suppliers have developed their own scale-up methodologies. Yet in recent experience these different scaleup methods - result in 300-400% variations in estimated energy for the same duty. In several recent cases, estimates for the same mill from different manufacturers have varied by over 100%.

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High Intensity - IsaMill™ Advantages Isamill

2021-7-6  Mill Diameter (m) Mill Length (m) Installed Power (kW) Mill Volume (m 3) Power Intensity (kW/m 3) Autogenous Mill: 10: 4.5: 6400: 353: 18: Ball Mill: 5: 6.4: 2600: 126: 21: Regrind Ball Mill: 3.2: 4.8: 740: 39: 19: Tower Mill: 2.5: 2.5: 520: 12: 4: IsaMill™ 2.0: 4.7:

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Energy efficiency - IsaMill™ Advantages Isamill

2021-6-29  The large scale of the IsaMill™ makes that efficiency available to mainstream grinding. The high energy efficiency of stirred mills compared to ball mills is well understood. The use of tower mills as an energy efficient alternative to secondary and regrind ball milling became a common inclusion in the latter part of the previous century.

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From base metals and back – IsaMills and their

2013-8-20  range of applications and industries, particularly in copper and lead zinc concentrate regrind duties. IsaMill principles of operation Grinding mechanism The IsaMill™, as shown in Figure 1, is a horizontally stirred mill consisting of a series of 7-8 rotating grinding discs ... μm would take 28 kWh/t in the IsaMillTM, but 90 kWh/t in a ball ...

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The development of ultra-fine grinding at Anglo Platinum

2009-8-26  It was also realized that regrind mills of ~ 3 - 5 MW (ball mill equivalent) capacity could be used for both mainstream and concentrate regrind applications in these plants without having to use multiples of small units. The opportunity to demonstrate and develop an M 10 000 IsaMill fitted the WLTR project objectives. It was a relatively

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The development of ultra-fine grinding at Anglo Platinum

2009-8-26  It was also realized that regrind mills of ~ 3 - 5 MW, (ball mill equivalent) capacity could be used for both mainstream and concentrate regrind applications in these plants without having to use multiples of small units. The opportunity to demonstrate and develop an M 10 000 IsaMill fitted the WLTR project objectives. It was a

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IsaMill™ Advantages - IsaMill™ Advantages Isamill

2021-7-5  Simply energy efficiency is about media size. Smaller media has more surface area and higher media / particle collision frequency making it more efficient. The high intensity in the IsaMill™ means small media can break coarse particles. The large scale of the IsaMill™ makes that efficiency available to mainstream grinding.

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Sizing a Regrind Mill for Fine Grinding - Grinding ...

2021-6-28  The idea of assessing a grinding equipment efficiency using Operating BWi is to compare what mill is CURRENTLY doing (OBWi) against CURRENT ore or feed grind-ability characteristic ( or BWi or SE derived from lab tests) on page 11 of the paper they have calculated CURRENT OBWi which is alright so far but have compared it with what mill was sized based on years ago as they say "This

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Comparison of energy efficiency between ball mills

2009-6-1  Open circuit batch ball mill compared with laboratory IsaMill to grind a feed of top size around 1 mm to a product P 80 less than 100 μm (Burns, 2007). • Full scale regrind ball mill in closed circuit compared with full scale IsaMill in open circuit to grind a feed of top size around 150 μm to a product P 80 less than 65 μm (Pease et al ...

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Comparison of energy efficiency between ball mills

Four different laboratory ball mills and stirred mills have been tested to grind seven ore samples with feed sizes ranging from 3.35 mm to 150 μm. A case study on full scale operations of a 2.6 MW IsaMill replacing the existing 4 MW regrind ball mill at Kumtor Gold Mine in Kyrgyzstan is also included.

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EVOLUTION OF THE ISAMILL™

2018-2-20  using a single stage ball mill vs a single stage IsaMill™ vs two stage ball and IsaMilling to achieve 34 µm product. • When compared against a traditional single stage ball mill circuit the flowsheet designed for this circuit has resulted in grinding power savings of nearly 50% (56 MW) and $60 million annual savings in grinding media.

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The development of ultra-fine grinding at Anglo Platinum

2009-8-26  It was also realized that regrind mills of ~ 3 - 5 MW (ball mill equivalent) capacity could be used for both mainstream and concentrate regrind applications in these plants without having to use multiples of small units. The opportunity to demonstrate and develop an M 10 000 IsaMill fitted the WLTR project objectives. It was a relatively

More

From base metals and back – IsaMills and their

2013-8-20  range of applications and industries, particularly in copper and lead zinc concentrate regrind duties. IsaMill principles of operation Grinding mechanism The IsaMill™, as shown in Figure 1, is a horizontally stirred mill consisting of a series of 7-8 rotating grinding discs ... μm would take 28 kWh/t in the IsaMillTM, but 90 kWh/t in a ball ...

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Energy Use of Fine Grinding in Mineral Processing

2013-4-25  AG or SAG mill, intermediate grinding to a ball mill or tower mill, and fine grinding to a stirred mill such as an Isamill or Stirred Media Detritor (SMD). Of course, various exceptions to these typical values can be found. In fine grinding, a material with an F80 of less than 100 lm is comminuted to a P80 of 7 to 30 lm. (P80s of

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Regrind Ball Mining - lane-yoga

Regrind Ball Crusher. Regrind Ball Crusher. Isamill Vs Ball Mill Regrind Ilvicoletto1563. Best suitable sie of grinding media for regrind mill. grinding mill mining machine auxiliary equipment mobile primary jaw crusher. mobile primary jaw crusher exchange system pre

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Energy Use of Fine Grinding in Mineral Processing ...

2013-12-18  Fine grinding, to P80 sizes as low as 7 μm, is becoming increasingly important as mines treat ores with smaller liberation sizes. This grinding is typically done using stirred mills such as the Isamill or Stirred Media Detritor. While fine grinding consumes less energy than primary grinding, it can still account for a substantial part of a mill

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isamill for sale Prominer (Shanghai) Mining

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Selecting a Regrind Mill - Grinding Classification ...

2021-7-3  Were able to accept the fact that regrinding mill and mill or grinding Media affect downstream performance or not. The system will contain a lot of circulation loads, and as you know if you have more circulation loads, your impact and abrasion performance in SAG and BALL MILL will not be effective, and your pulp too will be affected.

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EVOLUTION OF THE ISAMILL™

2018-2-20  using a single stage ball mill vs a single stage IsaMill™ vs two stage ball and IsaMilling to achieve 34 µm product. • When compared against a traditional single stage ball mill circuit the flowsheet designed for this circuit has resulted in grinding power savings of nearly 50% (56 MW) and $60 million annual savings in grinding media.

More

Comparison of energy efficiency between ball mills

Four different laboratory ball mills and stirred mills have been tested to grind seven ore samples with feed sizes ranging from 3.35 mm to 150 μm. A case study on full scale operations of a 2.6 MW IsaMill replacing the existing 4 MW regrind ball mill at Kumtor Gold Mine in Kyrgyzstan is also included.

More

From base metals and back – IsaMills and their

2013-8-20  range of applications and industries, particularly in copper and lead zinc concentrate regrind duties. IsaMill principles of operation Grinding mechanism The IsaMill™, as shown in Figure 1, is a horizontally stirred mill consisting of a series of 7-8 rotating grinding discs ... μm would take 28 kWh/t in the IsaMillTM, but 90 kWh/t in a ball ...

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Regrinding sulphide minerals — Breakage

2010-11-10  Regrinding was carried out in a tumbling mill (Magotteaux Mill ®) or a stirred mill (the IsaMill) at pH 9.0 with size reduction from d 80 80 µm in the regrind feed to 60 µm, 40 µm, 20 µm and 10 µm regrind product in separate experiments. The pH was maintained with sodium hydroxide (NaOH) titration throughout the regrinding process.

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Energy Use of Fine Grinding in Mineral Processing

2013-4-25  AG or SAG mill, intermediate grinding to a ball mill or tower mill, and fine grinding to a stirred mill such as an Isamill or Stirred Media Detritor (SMD). Of course, various exceptions to these typical values can be found. In fine grinding, a material with an F80 of less than 100 lm is comminuted to a P80 of 7 to 30 lm. (P80s of

More

About IsaMill - Labris

2017-3-18  The IsaMill is a horizontal high speed stirred mill that operates with very high power intensities (up to 350 kW/m3). In comparison, the power intensity of a ball mill is about 20 kW/m3. The high power intensity enables the IsaMill to process fine particles at a high throughput that is essential for the economics of the minerals industry.

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Energy Use of Fine Grinding in Mineral Processing ...

2013-12-18  Fine grinding, to P80 sizes as low as 7 μm, is becoming increasingly important as mines treat ores with smaller liberation sizes. This grinding is typically done using stirred mills such as the Isamill or Stirred Media Detritor. While fine grinding consumes less energy than primary grinding, it can still account for a substantial part of a mill

More

Improving IsaMill™ energy efficiency through shaft

2019-3-1  At full scale, by varying the IsaMill™ throughput (at standard operating mill speed) it was demonstrated that a reduction in specific energy was observed of approximately 13% at a P 80 target grind of 22 µm increasing to 17% at a P 80 target of 18 µm. There was an accompanying decrease of about 22% in drawn mill power.

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An IsaMill™ Soft Sensor based on Random Forests and ...

2017-7-1  The mill discharge is split between the discharge hopper and Proceedings of the 20th World Congress The International Federation of Automatic Control Toulouse, France, July 9-14, 2017 Copy ight © 2017 IFAC 1198 An IsaMill TM Soft Sensor based on Random Forests and Principal Component Analysis Lara F. A. Napier* and Chris Aldrich** ï ...

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Selecting a Regrind Mill - Grinding Classification ...

2021-7-3  Were able to accept the fact that regrinding mill and mill or grinding Media affect downstream performance or not. The system will contain a lot of circulation loads, and as you know if you have more circulation loads, your impact and abrasion performance in SAG and BALL MILL will not be effective, and your pulp too will be affected.

More