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tonnage capacity knowing ball mill work index

  • tonnage capacity knowing ball mill work index

    Ball Mill Design/Power Calculation 911 Metallurgist. 2015-6-19 The basic parameters used in ball mill design (power calculations), rod mill or any tumbling mill sizing are; material to be ground, characteristics, Bond Work Index, bulk density, specific density, desired mill tonnage capacity DTPH, operating % solids or

  • Ball Mill Design/Power Calculation 911 Metallurgist

    Jun 19, 2015· The basic parameters used in ball mill design (power calculations), rod mill or any tumbling mill sizing are; material 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 of circuit open/closed

  • Ball Mill Throughput Capacity karishmasteel

    Ball Mill Throughput Capacity. ball mill throughput calculator,ball mill design/power calculation. the basic parameters used in ball mill design (power calculations), rod mill or any tumbling mill sizing are; material 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

  • Ball Mill Design/Power Calculation LinkedIn

    Dec 12, 2016· Ball Mill Power Calculation Example. A wet grinding ball mill in closed circuit is to be fed 100 TPH of a material with a work index of 15 and a size distribution of 80% passing ¼ inch (6350

  • Calculate a Mill's Operating Work Index 911 Metallurgist

    Mar 14, 2015· Calculate a Mill’s Operating Work Index. Use this online formula to calculate a Ball Mill, Rod Mill or SAG Mill Operating Work Index. Based on Fred Bond’s work you can estimate the energy used into your grinding circuit. This is the most accurate and informative method, but much of the data necessary for its application is not yet available.

  • Bond Work Index an overview ScienceDirect Topics

    The ball mill work index laboratory test is conducted by grinding an ore sample prepared to 100% 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

  • 「wet ball mill capacity calculations」

    Nov 18, 2008 The description of wet ball mill Fig.5 Wet ball mill description 4. Equations of the design By knowing the capacity quot;Cquot; {ton} of the feed; we can get approximately the length quot;Lquot; {mm} and diameter quot;Dquot; {mm} of the batch ball mill, form **D = 124.2*C + 485.7 **L= 85.71*C + 1854 Volume of mill = ^2 The bulk volume

  • how can i calculate capacity of a wet ball mill

    how can i calculate capacity of a wet ball mill. In grinding, selecting calculate the correct or optimum ball size that allows for the best and optimumideal or target grind size to be achieved by your ball mill is an important thing for a mineral processing engineer aka metallurgist to do often, the ball used in ball mills is oversize just in case well, this safety factor can cost you much in

  • Application of Operating Work Indices in Autogenous

    Ball Mill Wio, BWio 8.6 Circuit Wio, OWio 14.6 Bond Ball Mill Work Index, BWi, kWh/t 13.4 Bond Rod Mill Work Index, RWi, kWh/t 18.1 Table 1. Example of AG/SAG Ball Mill Circuit Wio Calculations [1] [2] ABstrAct Optimum use of power in grinding, both in terms of grinding efficiency and use of installed capital, can have a large effect on

  • Ball Mills an overview ScienceDirect Topics

    8.3.2.2 Ball mills. The ball mill is a tumbling mill that uses steel balls as the grinding media. The length of the cylindrical shell is usually 1–1.5 times the shell diameter ( Figure 8.11). The feed can be dry, with less than 3% moisture to minimize ball coating, or slurry containing 20–40% water by weight.

  • Ball Mill Throughput Capacity karishmasteel

    Ball Mill Throughput Capacity. ball mill throughput calculator,ball mill design/power calculation. the basic parameters used in ball mill design (power calculations), rod mill or any tumbling mill sizing are; material 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

  • ball mill 20 tons per hour capacity india

    With a capacity of 1 ton, Small Oil Press G-10 is a cost-effective solution for those who have moderate crushing capacity.Ball Mill Design/Power Calculation Mineral Processing .The basic parameters used in ball mill design (power calculations), rod mill or any tumbling mill sizing are; material to be ground, characteristics, Bond Work Index

  • Low Ball Charge, Coarse Grind Grinding & Classification

    The grind is currently at 40-45% -75um. The CIL Tanks are sanded up. (i.e. 6 Tanks 3 online/3 offline) Please provide any suggestions? The tonnage is 105-110 tph. The Mill Dimensions are as follows: Primary Mill: 5,79m IS x 7,35m EGL Motor size: 2,35 MW Currently using a 100mm ball. The Bond Ball Mill work index is: 18,7kWh/t (hard rock blend)

  • Ball Mill Basic Calculation Formulas For Cement Ball Mill

    Ball mill designpower calculation.The basic parameters used in ball mill design power calculations, rod mill or any tumbling mill sizing are material 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

  • calculations for design of ball mills for cementgrinding

    Ball Mill Design/Power Calculation 911 Metallurgist. 19/06/2015 Ball Mill Design/Power Calculation. The basic parameters used in ball mill design (power calculations), rod mill or any tumbling mill sizing are; material 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

  • Correlations for the Grindability of the Ball Mill As a

    Ball mills usually operate at 65% to 75% of the critical speed. The critical speed is calculated as under [5]. R r g 2 1 n c (2) 2.1.3 Work Index: Work index is defined as the gross energy required in kilowatt-hours per ton of feed needed to reduce a very large feed to such a size that 80% of the undersize passes through 100-µm screen [5].

  • Hardgrove grindability index and approximate work index of

    characterized as sodium feldspar. The Hardgrove grindability test used a ball-race test mill. The Hardgrove grindability indices of these feldspar samples had an average of 46.25. Knowing the average Hardgrove index, a calculated work index of 12.88 kW/STPH

  • ball mill calculation xls for cement plant in cyprus

    ball mill calculation xls for cement plant in cyprus. Ball Mill DesignPower Calculation,The basic parameters used in ball mill design power calculations rod mill or any tumbling mill sizing are material 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

  • Operating and Troubleshooting a Grinding Circuit

    Aug 06, 2015· The work index and the size of the cyclone feed will determine the ratio of ore that is returned to the ball mill for further grinding. A ball mill operates more with the grinding surface action of the balls than the impact form of grinding that the rod mill uses. Taking this into account you can see that if the rod mill doesn’t reduce the

  • COMMINUTION Fred Bond low res International Mining

    capacity ball mills were installed from the late 1970s (5.5 m diameter and larger) it was found that throughput predictions for large mills with high feed rates of coarser particles were greater than those achieved. Correction factors based on the new data were required. SAG mill-ball mill circuits using large diameter mills

  • Grinding Circuit an overview ScienceDirect Topics

    The high unit capacity SAG mill/ball mill circuit is dominant today and has contributed toward substantial savings in capital and operating costs, which has in turn made many low-grade, high-tonnage operations such as copper and gold ores feasible. Future circuits may see increasing use of high pressure grinding rolls (Rosas et al., 2012).

  • calculation of capacity of cement ball mill Solutions

    Home>Solutions > calculation of capacity of cement ball mill 150tph andesite crushing and reshaping production line. Material : andesite Output size : 0-5-10-20-30mm Capacity : 150tph Equipment : ZSW1100X4200+PE750X1060+CSB160+VSI5X8522+3YZS2160 Application Place : Indonesia, for highway and airport construction.

  • Comminution Circuits Featured Projects DJB Consultants

    Comminution Circuits Featured Projects ANTAPACCAY. Southern Peru, 2009-2013 (108,000 tpd 80,000 tpd) Predictions of mill throughput from a porphyry copper open pit based on comminution test results of 22 composites and the available motor power of a “Standard” SAG Mill/Ball Mill circuit consisting of one 40 ft dia. x 22 ft EGL SAG Mill rated at 24 MW GMD and two Ball Mills, each 26

  • what is a ball mill for clay

    35+years Ball Mill Manufacturer,Clay Mill For Milling . clay mill for milling machinery Ball mill is the key equipment for recrushing the materials after they are primarily crushed. It is widely used for the dry type or wet type grinding of all kinds of ores and other grindable materials in

  • 1. Feed and product size distribution of a ball mill

    1. Feed and product size distribution of a ball mill are given in the following table, Work index (Wi) of the ore ground is 12 kWh per ton, Calculate the energy required for this size reduction, if the capacity of the mill is 150 t/h, what would be the power consumption in the mill? (20 pnts) Mill Product Mill Feed Size fractions (um) Wt.

  • Equipment Sizing: Crusher or Grinding Mill

    Jul 08, 2016· 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% circulating load, and with 80% or

  • ball mill capacity t fh BrasilienInfo

    ball mill design/powercalculation . Apr 08, 2018 · The basic parameters used in ball mill design (power calculations), rod mill or any tumbling mill sizing are; material 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

  • Hardgrove grindability index and approximate work index of

    characterized as sodium feldspar. The Hardgrove grindability test used a ball-race test mill. The Hardgrove grindability indices of these feldspar samples had an average of 46.25. Knowing the average Hardgrove index, a calculated work index of 12.88 kW/STPH

  • JME

    ball mills in producing the final product (particles finer than 74 µm) was 55.38% and 44.62% respectively. That is, the SAG mill produces about 10.76% more than the ball mill in the final product. The average consumed energy at SAG and ball mills to produce one ton of final product was 23.16 kWh/t and 36.05 kWh/t respectively.

  • Ball Mill Basic Calculation Formulas For Cement Ball Mill

    Ball mill designpower calculation.The basic parameters used in ball mill design power calculations, rod mill or any tumbling mill sizing are material 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

  • Recent International Concentrator Start-ups Do and Don’ts

    Lower tonnage on hard ore. 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 ft in diameter, with installed power in the range 1.85

  • (PDF) Understanding the effects of liner wear on SAG mill

    The capacity of the sample cutter and Bond ball mill work index geometallurgical model and tonnage treated 2. incorporating reline variability by generating a double exponential distribution

  • how to select the best comminution circuit Grinding

    I want know if you have an idea about the best comminution circuit selection basing on Ore hardness and competency (SABC, AG, ROMBALL MILL) we have two type of ore compétent and hard (AxB=24, ball work index = 18) and moderate and soft (AxB=40, work index 9,5 ) the final size 100 microns the mine start with moderate and soft ore

  • High pressure grinding rolls (HPGR) applications in the

    Feb 01, 2006· The Bond work index of the HPGR discharge was determined as 9.88 kWh/ton, whereas for the ball mill total fresh feed was found to be 16.34 kWh/ton with the added trass. Download : Download full-size image; Fig. 2. The measured and calculated size distributions around the circuit in

  • how does a wet ball mill work worldcrushers

    May 20, 2013· How does wet ball mill grinding carefully-FAQs. Grinding strip plays an important role in fine grinding, while impact effect is rarely. Wet ball mill

  • ball mill calculation xls for cement plant in cyprus

    ball mill calculation xls for cement plant in cyprus. Ball Mill DesignPower Calculation,The basic parameters used in ball mill design power calculations rod mill or any tumbling mill sizing are material 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

  • calculation of ball mill design

    ball mill,Ball Mill Calculation Pdf Design For Kg Feed. Ball mills are predominantly used machines for grinding in the cement industry. Although ball mills The separation air at separator measured as 1.22 Kg materialm 3 at circulating load of 2.52, High variations in the mill feed size on 25 mm sieve observed, which shall result in variation in the mill.

  • PDC & Mass Balance Flotation + CIL Rev A 2012 June 20

    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 max. tonnage rate mtph 1729 CAL/ENGINEERING DESIGN Solids/Pulp Density % 72 Engineering Design Feed Size, F80 µm 2,000