# Ball Mill Bond Work Index Fdp

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 m 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 index determination for the material size of interest,

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• ### 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 m 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 index determination for the material size of interest,

• ### Procedure For Determination Of Ball Bond Work Index In The

The Bond work index W i is widely used in the mineral industry for comparing the resistance of different ores to ball milling and can be used to estimate the energy required for grinding, which...

• ### Bond Work Index Report Matrix House

The work index was calculated to be 14.61144..6614.6 KWhKWhKWhtttt using the following equation 9 44.5 . ABC .D E 10 F D G 10 FHD I Where F80 is the size in microns at which 80 percent of the new feed to ball mill passes P80 is the size in microns at which 80 percent of the last cycle sieve undersize product passes

• ### Bond Grindability Index Test Ball Mill 911Metallurgist

Bond Grindability Index Test Ball Mill. A Bond Ball Mill, 12 x 12 of fabricated construction comes with electric motor and gear reducer drive, digital counter, jogging button to provide positioning of drum for loading and unloading, emergency stop button, 44 lb ball charge, stand and receiving pan.

• ### Investigation Into The Applicability Of Bond Work Index

Oct 15, 2015 The Bond Work Index BWI or Wi is defined as the calculated specific energy kW ht applied in reducing material of infinite particle size to 80 passing 100 m. The higher the value for Wi, the more energy is required to grind a material in a ball mill,.

• ### Ball Mill Designpower Calculation Linkedin

Dec 12, 2016 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 inch 6350 microns. The required product size...

• ### 20150505 Bond Efficiencygmgicev1r04 Determining

WiBM Bond Ball Mill Test Work Index kWht Wic Bond Impact Crushing Test Work Index kWht WioACT Actual Operating Bond Work Index determined from measurements on the circuit kWht WiRM Bond Rod Mill Test Work Index kWht WiSTD Standard Circuit Bond Work Index expected or designed used for circuit design. Specific energy requirement at the drive pinions. 3.KEYWORDS Work Index, Work Index Efficiency, Bond Work Index

• ### P80 Of Bond Ball Mill Work Index Tests

Dec 04, 2020 The laboratory procedure for running a Bond ball mill work index test requires that the operator choose a closing screen sieve size. The instruction is to choose a sieve size that results in the...

• ### Correction Of Bond Ball Mill Work Index Test For

The test work program was carried out on those five ore samples obtained from the copper-porphyry orebodies. Total of 38 Bond work index tests, including duplicates, were done. Standard Bond ball mill test procedure were carried out on crushed -3.35 mm 6 mesh material at different

• ### Ball Mill Work Index Adjustment

Calculate the Bond specific energy of each ball mill test, E ball 10 Wi P80-0.5 - F80-0.5. If you are going to use Morrell equations, then also calculate the Morrell specific energy for each ball mill test, E ball 4 Mib P80-0.295-P80 10-6 - F80-0.295-F80 10-6. Fit the specific energy results for all BM tests, E ball K P 80-a.

• ### Ball Mill For Bond Index

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 45150 181m 325100 mesh, thus determining the ball mill work index Wi B or BWi.

• ### Correlation Between Bond Work Index And

ball mill grindability. The test mesh used was 100 mesh P 14-16 . The Bond work index W i was calculated from Equation 2 W i 44.5P 1 0.23 X Gbp 0.82 10P 80 0,5 0.5 10F 80 2 Where F 80 is the size in m, at which 80 percent of the new feed to ball mill passes,

• ### Investigation Into The Applicability Of Bond Work Index

Oct 15, 2015 The Bond Work Index BWI or Wi is defined as the calculated specific energy kW ht applied in reducing material of infinite particle size to 80 passing 100 m. The higher the value for Wi, the more energy is required to grind a material in a ball mill,.

• ### Ball Mill Designpower Calculation Linkedin

Dec 12, 2016 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 inch 6350 microns. The required product size...

• ### Standard Bond Ball Mill Grindability Test Methodprocedure

Here is the old Allis-Chalmers Bond Work Index Grindability Test Procedure. The standard feed is prepared by stage crushing to all passing a 6 mesh sieve, but finer feed can be used when necessary. It is screen analyzed and packed by shaking in a 1000-cc graduated cylinder, and the weight of 700 cc is placed in the mill and ground dry at 250 per cent circulating load. The mill is 12 in. x 12 ...

• ### Application Of Operating Work Indices In Autogenous

Ball Mill Wio, BWio 8.6 Circuit Wio, OWio 14.6 Bond Ball Mill Work Index, BWi, kWht 13.4 Bond Rod Mill Work Index, RWi, kWht 18.1 Table 1. Example of AGSAG 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 ...

• ### Quick Method For Bond Work

grinding cycles. The Bond Work Index is calculated using the formula 1,1 44,5 0,23,8210 80 10 80 1 where W i Bond work index kWht P c test sieve mesh size m G weight of the test sieve fresh undersize per mill revolution grev F 80 sieve mesh size passing 80 of the feed before grinding m P 80

• ### A Method Of C Alculating Autogenous Semi

rod mill work index has not been de ned as yet. The ball mill work index is con rmed at 16 kWht. The operating work index, though, is in the range of 21 kWht to 25 kWht showing high inef ciency. This raises the point that, in some cases, the Bond EF4 oversize factor calculation is

• ### Pdf A Comparison Of Wear Rates Of Ball Mill Grinding Media

The Ball Mill Abrasion BMA test was developed by the University of Queensland Materials Performance group to simulate the high stress abrasion conditions experienced in production ball mills.

• ### Simulating The Bond Rod Mill Grindability Test Request Pdf

The Work Index is used when determining the size of the mill and grinding power required to produce the required ore throughput in a ball mill Bond 1961.

• ### Sustainability Free Fulltext Life Cycle Assessment

W i is the Bond ball mill work index kWht short ... process including transport, with percentages definitely above 50, whereas for six impact indicators GWP, FDP, ODP, MDP, TAP and PMFP some detailing is necessary. In the case of the indicator global warming potential GWP the major contribution is represented instead by heat ...

• ### Operating Work Index Is Not The Specific Energy Consumption

The work index can either be measured in the laboratory the Bond ball mill work index determination is a common example or it can be calculated from the operating performance of a milling ...

• ### Using The Smc Test174 To Predict Comminution

can be determined using the data generated by a conventional Bond ball mill work index test M. ib. is NOT the Bond ball work index. M. ic. and M. ih. values are also provided as a standard output from a SMC Test Morrell, 2009. The general size reduction equation is as follows Morrell, 2004. b f x f x 2. 1 i i. 4 2 W M x x. 1 1 where ...