Model:Bond/Barratt SAB Model - Revision history

Alex Doll: /* Model defaults */

2025-07-18T14:48:30Z

Model defaults

Alex Doll: /* Optional parameters */

2023-08-30T14:57:52Z

Optional parameters

Alex Doll at 15:31, 3 August 2023

2023-08-03T15:31:00Z

Alex Doll: /* Discussions */

2023-08-02T15:53:55Z

Discussions

Alex Doll: /* Bond/Barratt Specific Energy SAB Consumption Model */

2022-03-06T18:35:05Z

Bond/Barratt Specific Energy SAB Consumption Model

Alex Doll at 17:47, 22 March 2020

2020-03-22T17:47:17Z

Alex Doll: Alex Doll moved page Model:BondModelSAB to Model:Bond/Barratt SAB Model

2015-04-26T17:21:06Z

Alex Doll moved page Model:BondModelSAB to Model:Bond/Barratt SAB Model

Alex Doll at 17:20, 26 April 2015

2015-04-26T17:20:44Z

Alex Doll: /* Model defaults */

2013-12-06T00:50:18Z

Model defaults

Alex Doll: /* Formulae */

2013-12-05T21:31:41Z

Formulae

@@ Line 51: / Line 51: @@
 * P<sub>C</sub> for Easag= 18850
 * P<sub>R</sub>= 2100
-* CF = 0.15
+* CF = 1.15

@@ Line 23: / Line 23: @@
 ===Optional parameters===
 * '''Description''' and '''Comment''' are optional text fields
-* '''Maximum t/h limit''' is a t/h throughput above which a warning message is displayed (but does not actually limit the throughput).
+* '''Maximum t/h limit''' is a t/h throughput limit above which the mills will turn down by, for example, grinding out.
 * '''T<sub>80</sub> min''' and '''T<sub>80</sub> min''' override the transfer size restrictions built into the model
 * [[Ball mill work index adjustment]] used to adjust Wi<sub>BM</sub> for different P<sub>80</sub> sizes.
 ** '''coefficient (a)''', the fitted Hukki coefficient to the adjustment equation (enter as a positive number)
 * '''Essbm calibration factor''', model tuning factor for E<sub>total</sub>
 ===Formulae===

@@ Line 3: / Line 3: @@
 [[Category: Bond/Barratt Model]]
 [[Category: P80 adjustment]]
 == Bond/Barratt Specific Energy SAB Consumption Model ==

@@ Line 43: / Line 43: @@
 ===Discussions===
-Refer to the discussions in the [[Model:BondModel|Bond/Barratt SABC circuit model]] for background on the transfer size and the use of the Rowland efficiency factors (EF4 &amp; EF5).
+Refer to the discussions in the [[Model:Bond/Barratt_SABC_Models|Bond/Barratt SABC circuit model]] for background on the transfer size and the use of the Rowland efficiency factors (EF4 &amp; EF5).
 === Model defaults ===

@@ Line 2: / Line 2: @@
 [[Category:Specific Energy Models]]
 [[Category: Bond/Barratt Model]]
 == Bond/Barratt Specific Energy SAB Consumption Model ==

@@ Line 12: / Line 12: @@
 * [[Testwork: Bond rod mill work index|Bond rod mill work index]]
 * [[Testwork: Bond crushing work index|Bond crushing (low-energy impact) work index]]
 ===Formulae===

@@ Line 30: / Line 30: @@
 === Model defaults ===
-* Maximum T<sub>80</sub>, &micro;m = 6000
+* Maximum T<sub>80</sub>, &micro;m = 5000
 * Minimum T<sub>80</sub>, &micro;m = 400
 * P<sub>C</sub> for Essbm= 9400

@@ Line 14: / Line 14: @@
 ===Formulae===
-<math> E_{ssbm} = Wi_{C} \times \left ( \frac {10}{\sqrt{ 9400 }} - \frac {10}{\sqrt{ F_{80} }} \right ) + Wi_{RM} \times \left ( \frac {10}{\sqrt{ 2100 }} - \frac {10}{\sqrt{ 9400 }} \right )\times EF_4^{RM} + Wi_{BM} \times \left ( \frac {10}{\sqrt{ P_{80} }} - \frac {10}{\sqrt{ 2100 }} \right ) \times EF_4^{BM} \times EF_5</math>
+<math> E_{ssbm} = Wi_{C} \times \left ( \tfrac {10}{\sqrt{ 9400 }} - \tfrac {10}{\sqrt{ F_{80} }} \right ) + Wi_{RM} \times \left ( \tfrac {10}{\sqrt{ 2100 }} - \tfrac {10}{\sqrt{ 9400 }} \right )\times EF_4^{RM} + Wi_{BM} \times \left ( \tfrac {10}{\sqrt{ P_{80} }} - \tfrac {10}{\sqrt{ 2100 }} \right ) \times EF_4^{BM} \times EF_5</math>
 <math>E_{total} = E_{ssbm} \times (1+CF)</math>
-<math>E_{SAG} = \left [ \left (
+<math>\begin{align}
-Wi_{C}   \times \left ( \tfrac {10}{\sqrt{ P_{C}  }} - \tfrac {10}{\sqrt{ F_{80}  }} \right ) +
+E_{SAG} = \Big[ & Wi_{C}   \times \left ( \tfrac {10}{\sqrt{ P_{C}  }} - \tfrac {10}{\sqrt{ F_{80}  }} \right ) +  Wi_{RM} \times \left ( \tfrac {10}{\sqrt{ P_{R}  }} - \tfrac {10}{\sqrt{ P_{C}  }} \right ) \times EF_4^{RM} \\
-Wi_{RM} \times \left ( \tfrac {10}{\sqrt{ P_{R}  }} - \tfrac {10}{\sqrt{ P_{C}  }} \right ) \times EF_4^{RM} +
+ & + Wi_{BM} \times \left ( \tfrac {10}{\sqrt{110} } - \tfrac {10}{\sqrt{ P_{R}  }} \right ) \times EF_4^{BM} \Big] \times 1.25 - Wi_{BM} \times \left ( \tfrac {10}{\sqrt{ {110} }} - \tfrac {10}{\sqrt{ T_{80} }} \right )
 <math>E_{bm} = E_{total} - E_{asag}</math>