3482 XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3
be stacked or hydraulically transported using positive dis-
placement pumps.
This flowsheet option is well-suited to handle any CPR
or Coarse Particle Flotation (CPF) products. An indicative
mass balance is given in Table 5.
Cavex ® DE hydrocyclone combined with reclassification
of sands.
In applications where the provided feed for classification
contains elevated percentages of fine particles (75 µm),
single stage cycloning does not suffice to produce a highly
permeable sand. The flowsheet for such cases is presented
in Figure 6, incorporating an additional second stage of
cycloning. This additional stage facilitates further reduc-
tion in fines in the final product. The overflow from both
4 Fresh
Tailings
Water 8
6
2
7 3
1
5
Water
Figure 5. Proposed flowsheet using Cavex® DE hydrocyclone with a centrifuge decanter and dewatering screens
Table 5. Operational data balance of Cavex® DE hydrocyclone with a centrifuge decanter
Tailings Flowsheet
Option N°2
1
Fresh
Tailings
2
Cavex® DE
Hydrocyclone
Feed
3
Cavex® DE
Hydrocyclone
U/F
4
Cavex® DE
Hydrocyclone
O/F
5
U/S
6
O/S
7
Centrifuge
Discharge
8
Supernate
Solid Flow t/h 1,000 1,135 511 624 153 358 618 6
Solid Flow m3/h 370 420 189 231 57 132 229 2
Liquid Flow t/h 1,857 1,977 199 1,779 120 78 333 1,446
Liquid Flow m3/h 1,857 1,977 199 1,779 120 78 333 1,446
Slurry Flow t/h 2,857 3,112 709 2,403 273 436 951 1,452
Slurry Flow m3/h 2,228 2,398 388 2,010 177 211 562 1,448
Cw [%]35.0 36.5% 72.0 26.0 56.1 82.0 65.0 0.4
Cv [%]16.6 17.5% 48.8 11.5 32.1 62.8 40.8 0.2
S.G. Solid t/m3 2.70 2.70 2.70 2.70 2.70 2.70 2.70 2.70
Liquid Density t/m3 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Slurry Density t/m3 1.28 1.30 1.83 1.20 1.55 2.07 1.69 1.00
Make-Up m3/t 0.41
Water Recovery [%]78%
be stacked or hydraulically transported using positive dis-
placement pumps.
This flowsheet option is well-suited to handle any CPR
or Coarse Particle Flotation (CPF) products. An indicative
mass balance is given in Table 5.
Cavex ® DE hydrocyclone combined with reclassification
of sands.
In applications where the provided feed for classification
contains elevated percentages of fine particles (75 µm),
single stage cycloning does not suffice to produce a highly
permeable sand. The flowsheet for such cases is presented
in Figure 6, incorporating an additional second stage of
cycloning. This additional stage facilitates further reduc-
tion in fines in the final product. The overflow from both
4 Fresh
Tailings
Water 8
6
2
7 3
1
5
Water
Figure 5. Proposed flowsheet using Cavex® DE hydrocyclone with a centrifuge decanter and dewatering screens
Table 5. Operational data balance of Cavex® DE hydrocyclone with a centrifuge decanter
Tailings Flowsheet
Option N°2
1
Fresh
Tailings
2
Cavex® DE
Hydrocyclone
Feed
3
Cavex® DE
Hydrocyclone
U/F
4
Cavex® DE
Hydrocyclone
O/F
5
U/S
6
O/S
7
Centrifuge
Discharge
8
Supernate
Solid Flow t/h 1,000 1,135 511 624 153 358 618 6
Solid Flow m3/h 370 420 189 231 57 132 229 2
Liquid Flow t/h 1,857 1,977 199 1,779 120 78 333 1,446
Liquid Flow m3/h 1,857 1,977 199 1,779 120 78 333 1,446
Slurry Flow t/h 2,857 3,112 709 2,403 273 436 951 1,452
Slurry Flow m3/h 2,228 2,398 388 2,010 177 211 562 1,448
Cw [%]35.0 36.5% 72.0 26.0 56.1 82.0 65.0 0.4
Cv [%]16.6 17.5% 48.8 11.5 32.1 62.8 40.8 0.2
S.G. Solid t/m3 2.70 2.70 2.70 2.70 2.70 2.70 2.70 2.70
Liquid Density t/m3 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Slurry Density t/m3 1.28 1.30 1.83 1.20 1.55 2.07 1.69 1.00
Make-Up m3/t 0.41
Water Recovery [%]78%