An improved method using less mass compared to the Bond Ball Mill Work Index test. The JK Bond Ball Mill JKBBM test, is a locked cycle grindability test conducted using a standard laboratory Bond Ball Mill with the same steel ball charge and material feed size 100 passing 3.35 mm as the Bond Ball Mill Work Index test.
Get PriceFor every Bond Ball Mill Work Index test carried out at JKTech, a standard report is issued. The report details the Bond test procedure method, and presents the results including F80, P80, Grindability and Work Index. Further interpretation of the results is available if required. Frequently Asked Questions Bond Ball Mill Work Index
Bond Ball M Van Iseghem Armand. Bond Ball M Jktech laboratory services bond ball mill index test brmwi a bond ball mill index test bbmwi is a standard test for determining the ball mill work index of a sample of ore the bbmwi is a measure of the resistance of the material to crushing and grinding it
An improved method using less mass compared to the Bond Ball Mill Work Index test. The JK Bond Ball Mill JKBBM test, is a locked cycle grindability test conducted using a standard laboratory Bond Ball Mill with the same steel ball charge and material feed size 100 passing 3.35 mm as the Bond Ball Mill Work Index test.
on this test globally for design and optimisation. Comparative testing program for the original Bond Ball Mill Test, showing range of results against ususal range of BBMWi values measured The JKBBM test requires less material compared to the original test. JKTech recommends 5 kg for test work, compared to 10 kg for the original test. Similarly, the
A total of 221 variability samples from the Lac Otelnuk deposit were submitted for a grindability characterization study which involved the SPI and the modified Bond ball mill grindability Mod Bond tests. Standard Bond ball mill grindability test and SPT were conducted on a limited amount of samples up to 20.
Bond F. C., Crushing Tests by Pressure and Impact, Trans AIME, Vol 169, 1947, pp 5866. Bond Rod Mill Grindability Test. The test determines the Bond Rod Mill Work Index which is used with Bonds Third Theory of Comminution to calculate net power requirements when sizing ball mills. Various correction factors may have to be applied.
It is a 39locked cycle39 test conducted in closed circuit with a laboratory screen. Sample Requirements A minimum of 20 kg of material crushed to nominally minus 19 mm is preferred. JKTech would stage crush the sample to minus 12.5 mm, as required for the Bond Rod Mill Work Index test feed.
JK Bond Ball Mill Test JKTech. 20171123 Comparative testing program for the original Bond Ball Mill Test, showing range of results against ususal range of BBMWi values measured The JKBBM test requires less material compared to the original test. JKTech recommends 5 kg for test work, compared to 10 kg for the original test. Similarly, the
A Bond Ball Mill Work Index may also be used in the simulation and optimisation of existing mills and the associated grinding circuits. Sample Requirements A minimum of 8 kg of material crushed to nominally minus 10 mm is preferred. JKTech would stage crush the sample to minus 3.35 mm, as required for the Bond Ball Mill Work Index test feed.
JKTech can provide the comprehensive ore breakage data required to design and optimise comminution circuits. JKTech offers comprehensive testing to produce all the breakage parameters required by JKTechs comminution and classification circuit simulation software JKSimMet, a global industry standard for circuit design and optimisation.
This Grindability Test or Bond Ball Mill Work Index Procedure is used to determine the Bond Work Index of minus six mesh or finer feed ore samples. These equation application methods are used to process lt12 ore samples in a Ball Mill using a standard ball charge.. Below describes in general terms the Bond Work Index Procedure used by a Professional Metallurgical Testing Laboratory.
Bond Ball Mill Index Test JKTech. A Bond Ball Mill Work Index may also be used in the simulation and optimisation of existing mills and the associated grinding circuits. Sample Requirements A minimum of 8 kg of material crushed to nominally minus 10 mm is preferred. JKTech would stage crush the sample to minus 3.35 mm as required for the
Bond F. C., Crushing Tests by Pressure and Impact, Trans AIME, Vol 169, 1947, pp 5866. Bond Rod Mill Grindability Test. The test determines the Bond Rod Mill Work Index which is used with Bonds Third Theory of Comminution to calculate net power requirements when sizing ball mills. Various correction factors may have to be applied.
Bond Ball Mill Index Test JKTech. 20191114 A Bond Ball Mill Work Index may also be used in the simulation and optimisation of existing mills and the associated grinding circuits. Sample Requirements A minimum of 10 kg of material crushed to nominally minus 10 mm is preferred.
BALL MILLS, ROD MILLS amp BOND INDEX MILLS Essa Labtech Essa Labtech Essa Pty Ltd 8 Yelland Way, Bassendean Western Australia 6054, Australia Phone61 08 93773677 Fax 61 08 93773420
Table 2 Summary of Specific Gravity Tests Specific Gravity Method Tested Avg of 6 By 12 3456 Average of 2 pycnometer methods Hazen 2.93 2.91 2.74 2.85 2.86 2.75 2.84 Average of 3 ASTM Method D 854 ATT 2.86 2.82 2.68 2.78 2.81 2.71 2.78 SAGDesign Water displacement Dawson 2.76 2.82 2.54 2.81 2.75 2.82 2.75 Phillips Enterprises Wax coated Phillips 2.76 2.18 2.25 2.33 2.26 2.36
Here is the old AllisChalmers 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 1000cc 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
Energy requirements for crushing and HPGR options can now be determined in addition to AGSAG mills, and with Mic, ball mills. The results from conducting the SMC Test are used to determine the socalled dropweight index DWi which is a measure of the strength of the rock.
Bond Ball Mill Index JKTech. A Bond Ball Mill Index Test BBMWI is a standard test for determining the Ball Mill Work The closing screen size is selected so that the product P80 from the.
Bond Ball Mill Index Test JKTech. Measuring ore grindability in balls mills. The Bond Ball Mill Work Index is a measure of the resistance of the material to grinding in a ball mill.