2015-12-16 · The operating work index concept can be applied overall to AG/SAG circuits, but can be misleading when applied to individual sections (the SAG section or ball mill section). As an example, Table 1 presents AG/SAG pilot plant data for an oxide gold ore. Although the overall Wio is close to the BWi, the calculated figures would suggest that the ...

Ball Mill Design/Power CalculationThe basic parameters used in ball mill design (power calculations), rod mill or any tumbling mill sizing arematerial to be ground, characteristics, Bond Work Index, bulk density, specific density, desired mill tonnage capacity DTPH, operating % solids or pulp density, feed size as F80 and maximum chunk size, product size as P80 and maximum and finally the type ...

2015-6-19 · Example Calculation. A motor with around 1400 Horse Power is calculated needed for the designed task. Now we much select a Ball Mill that will draw this power.. The ball mill motor power requirement calculated above as 1400 HP is the power that must be applied at the mill …

The present work initially studies the kinetics of microwave-assisted grinding and flotation in a porphyry copper deposit. The kinetics tests were carried out on the untreated and microwave ...

A Bond Ball Mill Work Index test may be required for the design of a new mineral ... 2013 High quality ball mill design calculation / gold ball mill ball mill / liners… » Learn More work index of attrition ball mill

2013-8-2 · Mill Type Ball Mill Engineering Design Number of Trains 2 Engineering Design Number of Mills 4 Calculations Mill Size Dia mm x EGL mm 7,600 x 11,960 TBC by Suppliers Drive kW 14,000 TBC by Suppliers Bond Work Index - Ball Mill (Design) kWh/t 16.0 Testwork/Engineering Design Average Tonnage Rate (Each) t/h 1441 Calculations

screw conveyor power calculation xls – Gold Ore Crusher. Screw Conveyor Calculation – Free download as PDF File (.pdf), Excel Spreadsheet (.xls), … on a extensive EXCEL-Spreadsheet calculation …

The ball mill work index laboratory test is conducted by grinding an ore sample prepared to passing 3.36 mm (6 mesh) to product size in the range of 45-150 µm (325-100 mesh), thus determining the ball mill work index (Wi B or BWi). The work index calculations across a narrow size range are conducted using the appropriate laboratory work ...

2015-5-15 · The parameter Wi, known as the work index of the ore, is obtained from batch bench tests first devised by Bond (1961). The power calculated on using equation 1, (Bond, 1961; Rowland and Kjos, 1978), relates to: 1) Rod milling – a rod mill with a …

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If you value your time and the quality of your estimates our equipment data is for you. Get budgetary capital costs for over 3,000 pieces of mining and milling equipment and a …

2021-5-2 · This Table of Ball Mill Bond Work Index of Minerals is a summary as tested on ''around the world sample''. You can find the SG of each mineral samples on the other table.

Ball Mill Design Calculation Pdf Krosline. Ball Mill Design Calculation Pdf. Ball mill design calculation pdf ball mill designpower calculationun 19, 2015 ball mill powerdesign calculation example 2 in example noit was determined that a 1400 hp wet grinding ball mill was required to grind 100 tph of material with a bond work index of 15 guess ...

2017-10-25 · coal hammer mill sizing calculation – CathayPhillips Mining. Find the Right and the Top Conical Ball Mill Size And Capacity for your coal … ball mill efficiency calculations … mobile jaw crushing plant;. Click & Chat Now

1989-1-1 · Calculation of energy required for grinding in a ball mill. Int. J. Miner. Process., 25: 41-46. The Bond work index, Wi, as an indicator of the grindability of raw materials is not a material constant but rather it changes with change of size of the grinding product.

picture showing the copper ball mill calculation pdfs in zambian mines. Ball mills ball mills designed for long life and minimum maintenance overflow ball mill sizes range from ft x ft with hp to x and as much as hp larger ball mills are available with dual pinion or ring motor drives our mills incorporate many of the qualities which have made the marcy name famous since get price

Grinding Media Cement Ball Mill Process Calculation. Calculation of grinding media charging ball mill of cement how to calculate grinding media in a ball mill in cement cement grinding vertical roller mills versus ball mills cement industry the ball mill was really an epochmaking breakthrough as for almost years it was the predominant mill for grinding of raw materials and coal and still today ...

Cement Ball Mill -China Henan Zhengzhou Mining Machinery. The Product size is adjustable in the range of 80-425 mesh cement ball mill price is possible to produce 30-80 mesh coarse powder through special device in the machine if necessary Cement ball mill is mainly consisting of feeding device, big gear, discharge device, cylinder, diaphragm plate, hollow shaft, liner, drive device and other ...

2016-7-8 · The Work Index values listed in Table I and II apply directly to a wet grinding overflow type rod mill 7.5 feet in diameter in open circuit; and to a wet grinding overflow type ball mill 7.5 feet in diameter in closed circuit with a rake classifier at 250% …

2018-2-20 · ball mill work index was averaging only 11.6 kWh/t, which is not hard. A rod mill work index ﬁ gure was not found but was thought to be in the 16 kWh/t to 18 kWh/t range. The Xstrata Zinc 22 ft ID × 40 ft EGL over ow ball mill ﬂ was installed at Mt Isa in 2009. This mill was put into single

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