11
List of Figures
Details of Figure
Figure 2.1
Schematic diagram of particle settling by (A) free (B) hindered
settling conditions
Figure 2.2
Classifier Tree
Figure 2.3
The schematic diagram of the mechanical classifier
Figure 2.4
Schematic diagram of a typical non-mechanical classifier
Figure 2.5
Schematic diagram of a typical Hydrocyclone
Figure 2.6
Schematic diagram of particle classification in hydraulic classifier
Figure 2.7
Schematic diagram of teeter bed separator.
Figure 2.8
Different zones in the floatex density separator.
Figure 2.9
Schematic diagram of cross flow separator
Figure 2.10
Schematic diagram of reflux classifier
Figure 2.11
Schematic diagram of particle separation in reflux classifier
Figure 2.12
Sectional view of All flux classifier
Figure 3.1
The flow diagram of the Magnetite beneficiation
Figure.3.2
Experimental set up of Floatex Density Separator
Figure 3.3
Size distribution curve of iron ore fines
Figure 3.4
Diffractogram of the head sample
Figure 3.5
Diffractogram of the sample
Figure 3.6
SEM photomicrograph iron ore fines sample
Figure 3.7
Size distribution curve of COB plant tailings
12
Figure 3.8
Photo micrographs of sieve classified sample depicting interlocking
of chromite with different types of silicate gangues
Figure 3.9
Photo micrographs of sieve classified sample under reflected light
Figure 4. 1
Partition curves obtained at different teeter water flow rates at a feed
rate of 0.1 tph
Figure 4.2
Partition curves obtained at different teeter water flow rates at a feed
rate of 0.5 tph
Figure 4.3
Effect of Bed pressure on partition curve at a feed rate of 0.1 tph
Figure 4.4
Effect of Bed pressure on partition curve at a feed rate of 0.5 tph
Figure 4.5
Interaction between TW and BP at low level of PD and FFR
Figure 4.6
Interaction between TW and BP at higher PD and FFR
Figure 4.7
Interaction between TW and FFR at low levels of PD and BP
Figure 4.8
Interaction between TW and FFR at higher levels of PD and BP
Figure 4.9
Interaction between BP and FR at lower level of TW flow rate and
PD
Figure 4.10
Interaction between BP and FR at higher level of TW flow rate and
PD
Figure 4.11
Interaction between FFR and PD at low levels of TW and BP
Figure 4.12
Interaction between BP and FFR at higher levels of TW and PD
Figure 4.13
Plot generated for estimation of interstitial TW velocity (Vt)
Figure 4.14(a)
Comparison of predicted product size distribution with the actual
data (For Exp No 7)
13
Figure 4.14 (b)
Comparison of predicted product size distribution with the actual
data (For Exp No 16)
Figure 4.15 (a)
Comparison of predicted product size distribution with the actual
data (For Exp No 13)
Figure 4.15 (b)
Comparison of predicted product size distribution with the actual
data (For Exp No 14)
Figure 4.16 (a)
Comparison of predicted product size distribution with the actual
data (For Exp No 9)
Figure 4.16(b)
Comparison of predicted product size distribution with the actual
data (For Exp No 2)
Figure 4.17
Extent of influence of variables and their interactional effect on
classification performance
Figure 4.18
Effect of process variables on (%) yield to underflow
Figure 4.19
Effect of process variables on Cut Size (D50)
Figure 4.20
Effect of process variables on Ep value
Figure 4.21
Effect of BP on partition curve at lower TW, lower PD and lower
FFR
Figure 4.22
Effect of BP on partition curve at higher TW, higher PD and higher
FFR
Figure 4.23
Effect of PD on Partition curve at lower BP, lower PD and lower
TW
Figure 4.24
Effect of TW flowrate and BP on yield to underflow
Figure 4.25
Effect of TW flowrate and FFR on yield to underflow
Figure 4.26
Effect of TW flowrate and PD on yield to underflow
Figure 4.27
Effect of BP and FFR on yield to underflow
Figure 4.28
Effect of BP and PD and on yield to underflow
Figure 4.29
Effect of FFR and PD and on yield to underflow
14
Figure 4.30
Effect of TW flowrate and BP on Cut size
Figure 4.31
Effect of TW flowrate and FFR on Cut size
Figure 4.32
Effect of TW flowrate and PD on Cut size
Figure 4.33
Effect of BP and FFR on Cut size
Figure 4.34
Effect of BP and PD on Cut size
Figure 4.35
Effect of FFR and PD on Cut size
Figure 4.36
Effect of TW flowrate and BP on efficiency
Figure 4.37
Effect of TW flowrate and FFR on efficiency
Figure 4.38
Effect of TW flowrate and PD on efficiency
Figure 4.39
Effect of BP and FFR on efficiency
Figure 4.40
Effect of BP and PD on efficiency
Figure 4.41
Effect of FFR and PD on efficiency.
Figure 4.42
The effect of BP on size separation at lower FR, TW and low PD
Figure 4.43
The effect of BP on size separation at higher FR, TW and low PD
Figure 4.44
The effect of FFR on size separation at lower, BP, TW and PD
Figure 4.45
Effect of TW flowrate and BP on yield to underflow
Figure 4.46
Effect of TW flowrate and FFR on yield to underflow
Figure 4.47
Effect of TW flowrate and PD and on yield to underflow
Figure 4.48
Effect of BP and FFR on yield to underflow
Figure 4.49
Effect of BP and PD and on yield to underflow
Figure 4.50
Effect of FFR and PD and on yield to underflow
Figure 4.51
Effect of TW flowrate and BP on Cut size
15
Figure 4.52
Effect of TW flowrate and FFR on Cut size
Figure 4.53
Effect of TW flowrate and PD on Cut size
Figure 4.54
Effect of BP and FFR on Cut size
Figure 4.55
Effect of BP and PD on Cut size
Figure 4.56
Effect of FFR and PD on Cut size
Figure 4.57
Effect of TW flowrate and BP on efficiency
Figure 4.58
Effect of TW flowrate and FFR on efficiency
Figure 4.59
Effect of BP and FFR on efficiency
Figure 4.60
Effect of TW flowrate and PD on efficiency
Figure 4.61
Effect of BP and PD on efficiency
Figure 4.62
Effect of FFR and PD on efficiency.
Figure 4.63
Characteristic step curve for Synthetic mixture (Test 1)
Figure 4.64
Partition curve of individual minerals and composite mixture
Figure 4.65
Effect of teeter water on Cut size
Figure 4.66
Effect of teeter water on Cr2O3 recovery
Figure 4.67
Iron recovery, Silica rejection and alumina
Figure 4.68
Actual and predicted partition values to underflow for Coal
Figure 4.69
Actual and predicted partition values to underflow for Silica
Figure 4.70
Actual and predicted partition values for the magnetite
Figure 4.71
Actual and predicted partition values for the synthetic mixture