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lected from the ball mill feed conveyor in the Phosphate. Hill Beneficiation Plant during a grinding circuit survey. The ore is locally known as ''soft ore'' with a Bond ball mill Work Index of 14.3kWh/t, and the breakage char acteristic parameter A = 63.9 and b = 0.93 determined with a drop weight tester (NapierMunn et al.,

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that simultaneously returns comminution datasets suitable for a Bond Work Index based method JK Tech (JK SimMet with drop weight test) . Ball Mill Test. Bond WiBM at 100#. Abrasion Test. "Bond" Ai. Figure 4. Riffle. The two work index samples are riffled to a sample size needed for conducting each test and then.

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Apr 4, 2017 There is also a JKTech Bond Ball Mill Work Index Light. Basically only does the BBMWI to 3 cycles instead of the steady state. Requires less material ie 3kg, costs less even if you do duplies. Apparently based on their data base data they have an average error of 4% compared to 3.5% for the full BBMWI.

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Apr 13, 2010 been calibrated and validated with data from quartz, an iron ore and a copper ore with very good agreement. . which, in turn, is used to estimate the Bond ball mill work index. The paper The Bond work index is attractive for the assessment of the energy requirements of comminution because a single.

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data. Specifically, the issues associated with the bond crushing (impact) and rod work indices measurement, the various SAG mill specific energy tests, and the interpretation of the resulting . JKTech conducts a regular program of testing for each of the . and the feed mass (10 kg) allows a ball mill work index test to be.

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The former is equipped with a reverseconfigured ball mill closed grinding circuit, while the latter is equipped with ball mills under a direct closed circuit. From the operational data, it was possible to calculate the Operating Work Index and specific energy consumption per amount of material finer than the grind size

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Apr 26, 2016 different comminution circuits (i.e., jaw crusher + HPGR mill + ball mill, jaw crusher + ball mill, and. SAG mill + . A grinding mill (305 mm ˆ 305 mm) was used for the Bond ball mill work index test [18–21]. Comparison between the Eastern Hebei magnetite ore and JKTech ore characteristic database.

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In conjunction with the Bond ball mill work index they can be used to accurately predict the overall specific energy requirements of circuits containing: • AG and SAG mills. • Ball mills These values can be used to simulate crushing and grinding circuits using JKTech's simulator – JKSimMet. Figure 1 – Measured vs

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Table 3 Cadia grinding circuit data input for Ausgrind calculations Ore JK or SMC parameters (A×b) SG DWi Bond crusher work index Bond rod mill work index Bond ball mill work index Value 36 2. the SAG mill specific energy equals to the total grinding circuit specific energy.7 7.72 30 70 Unit m m % % % m m % % The

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and procedures. Validation done by reanalysing database results shows results within 4.1% agreement on average. Improved methodusing less mass compared to the BBMWi Test. Development and Initial Validation. Use of Work Index. Since its introduction in the 1960s the Bond Ball Mill Work. Index (BBMWi) parameter

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Key Words: Comminution Tests, Bond Work Indices, JKTech, Grinding Mill Design, Database,. Ore Hardness Ball Mill Work Index tests using crushed feed, and Standard Autogenous Grinding Design. (SAGDesign) Database for all tests done to date for SAG Pinion Energy (to T80 1.7 mm) and Bond Work Index on SAG

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Key Words: Comminution Tests, Bond Work Indices, JKTech, Grinding Mill Design, Database,. Ore Hardness Ball Mill Work Index tests using crushed feed, and Standard Autogenous Grinding Design. (SAGDesign) Database for all tests done to date for SAG Pinion Energy (to T80 1.7 mm) and Bond Work Index on SAG

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Apr 26, 2016 different comminution circuits (i.e., jaw crusher + HPGR mill + ball mill, jaw crusher + ball mill, and. SAG mill + . A grinding mill (305 mm ˆ 305 mm) was used for the Bond ball mill work index test [18–21]. Comparison between the Eastern Hebei magnetite ore and JKTech ore characteristic database.

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Jul 3, 2014 out by ALS Metallurgy (Perth) and JK Tech (Brisbane) between April and June 2014 on 500 kilograms .. size of 1,180µm, while the Bond Ball Mill Work Index tests were carried out with a closing screen size of 180µm No grinding data was determined, but it would be safe to conclude the oxide ore is soft.

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the MLA business from JKTech. . Figure 5—Extract of data summarizing the magnetic response for a number of minerals (Rosenblum and Brownfield, 2013) . consumed in breaking each particle is recorded. Bond Work Index. This procedure was developed to assess the energy required to mill particles from a top size of

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Jul 3, 2014 out by ALS Metallurgy (Perth) and JK Tech (Brisbane) between April and June 2014 on 500 kilograms .. size of 1,180µm, while the Bond Ball Mill Work Index tests were carried out with a closing screen size of 180µm No grinding data was determined, but it would be safe to conclude the oxide ore is soft.

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operating data (through plant survey). Services includes: gathering of data. BENCH SCALE COMMINUTION. TEST WORK q Bond Work Index Testing. Bond Ball Work Index. Bond Rod Work Index. Bond Crushability Work Index. Bond Abrasion Work Index q JK Tech Testing. JK Drop weight Test. SAG Milling Comminution

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Aug 18, 2016 Bond Work Index. Ws. Specific energy correction for size distribution (kWh/t). WiBM. Bond Ball Mill Test Work Index (kWh/t). 3. KEYWORDS .. (JKTech, 2011). The raw data from breakage at these ener gies are processed by SMC Testing Pty Ltd. via JKTech and generate the ore hardness parameters,

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MMPT Database. Figure 2. PLI vs JK Drop Weight Test result for Batu Hijau Ore and MMPT database. Using the Point Load Index to "map" ore body hardness is an efficient approach for throughput modelling and . 2 WiC = Bond Crusher Work Index, Wibm = Bond Ball Mill Index and Wirm = Bond Rod Mill Index. 9

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Jan 31, 2013 Mr. Stefan Nadolski and Mr. Zorigtkhuu Davaanyam assisted with the HPGR testing and provided a summary for HPGR operating data. It was reported in much of the available literature that microcracks result in a reduction in the Bond ball mill work index of 10~25%, compared to a tertiary cone crusher

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