Outotec has expanded its grindingmill product family and now offers Outotec highintensity grinding mill (Outotec HIGmill) for fine, ultrafine and regrind milling applications. This grinding technology has been developed and utilized for more than 30 years. Today there are more than 260 installed units around the world, with installed mill ...
Outotec® High Intensity Grinding Mill Outotec has expanded its Grinding mill product family and now offers Outotec® High Intensity Grinding Mill (Outotec® HIGmill) for fine, ultra fine and regrind milling applications.
The Hicom mill is a highintensity tumbling mill which uses a nutating action to generate acceleration fields 40 to 50 times stronger than gravity, producing rapid and intense breakage of ores and other materials. It can be used either autogenously or with steel or ceramic grinding media.
Metso Outotec HIGmillTM is an advanced and energyeficient fine and ultrafine grinding solution that relies on proven technology. The mill takes advantage of gravitational forces and GrindForceTM rotor technology to produce a finer grind for mineral liberation.
Unlike traditional ball mills, collisional energy in stirred mills is not lost by highintensity impacts between the grinding media and the equipment internal walls (Hoyer, 1984; Jankovic Morrel ...
Table 1: Power Intensity of Different Grinding Devices Ball Mill is a D x L Tower Mill is a D x L 520KW Table 2: Mill Comparison of Media Size, Power Intensity, number of grinding media The ability to use smaller media is probably the dominant impact on grinding efficiency. It dramatically increases the grinding ...
The new design means that the required millandaccess footprints of equivalently specified IsaMill and highintensity grinding (HIG) mills are the same, while the IsaMill is roughly a third of the height of the HIG mill. Mike Hourn, technology lead at Glencore Technology, said the new M7500 was a significant win for operations needing 1,600 ...
The Hicom 120 mill is a high intensity, compact, grinding mill of novel design. This technology has been under evaluation by the De Beers Group for a number of years. Based on positive results from pilot plant testwork, an industrial evaluation programme was embarked upon at Venetia Mine from August 1999 to November 1999.
The High Intensity Grinding (HIG) mill has been designed specifically to manage these types of complex, finegrained ore bodies that are rapidly becoming more economically viable.
IsaMill™ is highest intensity grinding device with nearly three times the kW/m 3 of its closest competitor, the SMD. With a tip speed of 22 m/s it has at least three times the kinetic energy in impacts. 500kW M1000 IsaMill™, Oceanagold, Macraes Gold Mine, New Zealand 500kW M1000 IsaMill™, Oceanagold, Macraes Gold Mine, New Zealand
Stirred mills can be classified into two categories gravity induced (VERTIMILL® Grinding Mill and Tower Mill) and fluidized mills (IsaMill™, VXP mill, SMD™ and HIG mill). Besides size reduction, the high power intensity in the stirred mills (see Table 1 ) causes intense mechanical stressing on particles that leads to rupture of the ...
The Metso HIGmill™ is an advanced, energyefficient fine and ultrafine grinding solution that utilizes proven technology. With the tall, narrow, vertical body arrangement, grinding media is evenly distributed and mineral particles remain in constant contact, significantly increasing grinding efficiency.
Grinding mills typically include a grinding chamber to which the 20 particulate material is added. An outer shell of the grinding chamber may be rotated, or an internal mechanism in the grinding chamber may be rotated (or both). ... high intensity grinding mills and to obtain a nonultrafine product size distribution. Figure 7 shows a flowsheet ...
HIGMill technology is one of the recent machines having vertical orientation and is in use for wet fine grinding applications. Since the technology is new, understanding its operation regarding to the comminution performance and product specification is of importance for both the academia and industry.
High Intensity Grinding mill (HIGMill™) inspection packages Package 1 Package 2 Customized Location Component Task Mill status Visuals and Vitals Mechanical Verification Comprehensive General Control room data Collect basic operating data (tonnage, power draw, speed, etc.) Operating or stopped • • • Operation and maintenance staff
It is normally carried out in high intensity grinding mills such as oscillating mills, planetary mills, vibration mills, attrition mills, and jet mills. Besides size reduction, severe and intense mechanical action on the solid surface during the fine grinding process are known to lead to physical and chemical changes (termed as physicochemical ...
The Outotec HIGmill comprises a mill body, a shaft with grinding discs, shellmounted counter rings, and a gearbox and drive. Grinding beads fill approximately 70% of the grinding chamber, with rotating discs stirring the charge and grinding taking place between the beads by attrition. Depending on the application, there can be up to 30 discs ...
At the target grind size of 40µm, the required Specific Grinding Energy for flat discs is kWh/t and for GrindForce rotors it is kWh/t, a 28% energy saving. Recently Outotec has conducted rotor design optimisation work at the same site and achieved a further 5% decrease in energy use. Further RD testwork was conducted to compare the ...
The demand for fine and ultrafine grinding associated with the processing of more challenging, finer grained orebodies and the global driver of minimising energy consumption has been an increased focus in our industry. Outotec's stirred milling technology, the high intensity grinding mill (HIGmill), was launched in 2012 in response to this industry need. First Quantum Minerals Ltd selected ...
A highintensity blasting/twostage HPGR/Vertimill circuit was testified for energy savings over 45 % compared with a conventional blasting/SABC ... B., Nadolski, S., Bamber, A., 2011. A Pilotscale examination of a high pressure grinding roll/stirred mill comminution circuit. In: Autogenous and Semiautogenous Grinding Technology Conference ...
The Hicom 120 mill is a high intensity, compact, grinding mill of novel design. This technology has been under evaluation by the De Beers Group for a number of years. Based on positive results from pilot plant testwork, an industrial evaluation programme was embarked upon at Venetia Mine from August 1999 to November 1999.
The modern high intensity stirred mills (such as the IsaMill) further extend the energy benefits of this technology by using higher agitation speeds and smaller media particles [1]. Media selection has a major influence on mill parameters such as energy efficiency, internal wear and operating costs.
The HICOM mill is a high intensity fine grinding mill which has unusual transport and discharge characteristics arising from multiple discharge ports around the mill. Its usual operation involves discharge of both grinding media and dry product powder. The earliest modelling of this mill was by Hoyer and Boyes (1990).
The company's scope of delivery consists of the main process equipment for grinding, flotation and dewatering and includes HIGmill® highintensity grinding mills, TankCell® flotation cells in different sizes in the 30 to 630 cubic meter range, Larox® PF pressure filters, HRT HighRate Thickeners, an online sampling and analysing system, as well...
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