Summary: ??? ?????????? ???? ???? ???? ?????? ??? ????? ?????????? ?????? ???????. ?????????, ????, ?????? ??????? ???? ???? ??? ????? ????????? ???? ????? ????????? ?????? ???? ???? ???? ???? ?? ????....
?? ?????????? ?????????? ????? ???? ????, ??? ?? ???? ?????????? ?????? ??? ?? ??: Which beneficiation method should I use—froth flotation or gravity separation?
???????? ??????? ??? ????? ???????? ??????? ????? ????? nende ?????? ????????????????? ??. ???????? ??????? ??????? ????? ????? ?? ???? ???? ?? ???? ?????? ???; ???? ?? ???? ???? ??? ??, ?????? ???? ??? ?????? ?? ??? ??. ???? ???, ????? ???????? ?? ????? ???????????? ?????? ????????? ?? ?? ???????? ????? ????? ???????? ??????? ????? ????? ???? ?????? ??, ???? ??? ????? ??? ??? ??????? ??? ????.
???????? ????? ? ??????? ????? ?????? ????? ?? ?????????? ?????? ??. ?? ???? ???????? ???? (OpEx) ??? ?????????? ???? ???? ????????? ?????? ??, ?? ???? ???? ????? ????? ???, ?????, ??? ??? ??????? ???? ?????? ????? ??.
????? ???????? ?????????? ????? ????????????? ?????? ???????? ?? ???? ???? ??. ????? ????? ??? ????? ???????? ????????????? ???? ??? ??, ????? ?? ??????? ???????? ?????? ?? ???????-??????,????, ??? ??????? ???????? ?????? ???????????? ???? (??? ?? ??????, ????, ??? ???).
????? ?????? ????? ?? ? ???? ???? ????? ???. ???? ??????? ?????? ???????? ???????? ???????? ????? ??? ?? — ???????? ????????????? ?????? ?????? ???? ???? ????? ???? ???????????? ??????? ??? ?? ??? ???????? ???????? ?????? ???? ????? ???-??????? ?????? ????? ??????? ??? ??.
???? ??????? ?? ???? ??????? ???? ????????? ??????????? ??????? ???????? ???????????? ????? ??.
?????????? ?????? ??? ????? ?????????? ??? Prototype ?????
? ? ????????? ???? ???? ??? ??? ??? ?? ?? ????? ????, ???? ???????????? ??? ?????????????? ??? ???? ???? ????? ??? ?? ?? ?????? ????? ??.
1.1 ??????? ????? ??????? ???? ???? ????? ??? ???
???????? ??????? ?????? ???????? ???? ??? ???? ???? ????? ??????? ??????? ????? (SG) ??????? ??? ?? ??.
???? ???? ??? ??? ??: ?????? ??????? ????? ????? ???????? ??????? ????????? (??????: ???? ?????? ???????) ??? ??????? ??? ??, ?????? ???? ??? ???? ???? ??? ?? ??? ?????? ???????? ???????? ??? ??, ????? ???? ????? ????? ??????? ??? ??.
? ???: ? ??????? ???? ????? ???? ???? ???????? ????????? ????? ????? ??. ?? ???????? ???? ??? ???? ???????? ??? ?????? ???? ??? ?? ????????????? ?????? ?????? ?????? ?? ???.
??????? ????: ?????, ???? ??????, ??????? ??????????????, ????????????? ?????????????? (????? ????? ????)
????????????? ??????: ???? ??? ????????? ???? ??? ??, ?????? ???? ???? ????????? ?????? ????? ??? ?? ??? ??.
1.2 ????? ???????? ???? ???? ????? ??? ???
????? ???????? ??????????? ?????? ????? ??? ?? ??? ????? ????????????? ?? ????? ????????? ??? ??. ?? ??????? ??? ???? ???? ?????????? ?? ?? ??? ????? ???? ????????? ???? ????? ??? ?? ??? ?????? ????? ????.
???? ???? ??? ??? ??: ????? ?????? ????? ?????? ???? ????? ???? ??? ????? ???????? ???????????? (????????? ??? ????????) ???? ??????? ??????? ??? ??. ? ?????? ???????? ???? ???? ?????????? ????? ??? ?? ??? ???? ??-????????? (????????????) ????? ??? ??. ?????? ???????? ??? ??? ??????? ??? ??, ?????? ???????????? ???? ??? ???? ????? ????? ???? ??????? ????? ?? ????? ???? ?? ??? ????-?????? ????? ??? ??? ?? ???? ????? ???? ???? ??????? ??? ??. ??????? (????????????) ????? ????? ????? ???? ??? ??.
??????? ????: ???????? ??? (???????? ???? ???????????), ????????? ???????, ??????? ????, ????? ??? ??????? ???? ????????
????? ????????: ???????? ??????? ???????? ??????? ??? ????? ???? ??????? ??? ????? ?? ???? ?? ??.
2. ??? ?????? ??? ????? ???????? ???????? ????? ????
| ????? | ???????? ????? | ????? ???????? |
|---|---|---|
| ?????? ???????? | ??????? ????? (????? ????) | ??? ????????????? (??????????????) |
| ?????? ???????? ????? ?? | ?????? ????? (150 ???? ?? 0.05 ????) | ?????????? (0.1 mm ?? 0.01 mm) |
| ?????? ???? (OpEx) | ??? ? ????? (?????????????, ???? ??? ??? ???????? ?? ?????? ??) | ???? (????? ????????? ??? ????-????????? ?????? ????) |
| ?????????? ??? | ??????? (???????? ???? ????????? ?????? ??????? ??? ??) | ???? (??????????? ???????? ????????? ??? ??, ?? ??? ??? ???????????? ???????? ????? ??) |
| ?????? ????? | ??????/????? ?????, ???????? ????, ?????, ???????, ???, ???? ???? | ??????? ???? (??????, ????, ????, ????), ??????????? ????? |
3. ????????????? ?????? ?????? ??? ???????? ???? ???? ???????? ???????
3.1 ?????? ????????????? ?????? ??????? ?????? ???
| ??????? ?????? | ?????? ????? | ????????????? ??? ??? ??? ?? |
|---|---|---|
| ?????? ????? | ????????? ????? | ????/???? ???? ??????? ???? ????? |
| ???? ???????? ????? (???? ???) | ????????? ????? | ???? ?????黃????????? ???????? ???? ???? ???????????? ??? ?? |
| ??? | ????????? | Very high density (6.8–7.1 g/cm³) |
| ??????? | ??????, ???????????? | ???? ???? ?????? ????? |
| ???? ???? | ?????????, ?????, ?????? | ?????? ?????? ?? ???? ????? |
| ???????? | ???????? | ??????? ???? ???? ?????? ????? |
| ?????? ???? (???? ???) | ????????, ?????????? | ?? ??????? ???????? |
| ???? | ?????? ????? | ??? ?????? ????? ?????? ?????? ????? |
????? ????: ?? ????? ???????? ?????? ??????? ???? ???? ????? ?????? ??? 1.5 ??? ????? ??? ?? ????????????? ?????? ?????? ????? ????? ?????? ???? ????.
3.2 ?????? ????? ???????? ??????? ?????? ???
| ??????? ?????? | ?????? ????? | ???????? ??? ????? ??? ?? |
|---|---|---|
| ??????? ???? | ?????????????, ????????, ?????????? | ??????? ????? ???????? ???? ???? ???? ???????? ??? ??. |
| ????-?????? ???? | ??????, ?????????? | ???????? ???? ??????????? |
| ????? (???????, ???????-??????) | ???? ?????, ??????? | ????????????? ??????? ????? ?????????? ???? ?? |
| ??????? ????? | ????????????? | ??????? ???????? |
| ?????????? | ???????????? | ?????? ???? ???? ???? |
| ???? ??????????? ???? | ???? ????????? | ?????? ???? ????? ??? ????. |
| ??????? ?????? | 0.1 ?????? ???? ????? ???? | ? ????? ????????????? ??????? ???. |
| ??????? ????? (???????) | ????????, ???????? | ???? ?????????? ??????? ??????????? ???????? ???. |
????? ????: ?? ????? ???? ??? ??????? ?????? ??? (0.1 mm ?? ????) ???? ??????? ????? ?????, ?? ???????? ???? ???? ????? ?????? ????.
4. ??????? ?? ???? ????? ?? ???? ?????? ?????? ??????? ????? ????????
????????????? ?????? ?????? ??? ???????? ??????? ?????? ?????? ???? ?? ?? ?????? ??? ??.
| ?? ?? ?????? | ???????? ????? | ????? ???????? |
|---|---|---|
| ???? ???? (>2 ????) | ? ??? ????? | ? Poor – particles too heavy for bubbles |
| Medium (0.1–2 mm) | ? ?? ???? ???? ????? | ? ????? ???? ??? ?? ????? |
| Fine (0.01–0.1 mm) | ?? ???????? ????? | ? ??? ????? |
| ?????????? (<0.01 ????) | ? ??? ? ???? | ?? ??????????? ???? (??????? ??????????? ???? ??) |
???????????? ??????:
- ?? ?????? ???? 0.1 ???? ???? ???? ??? ????? ???, ?? ????????????? ?????? ?????? ??????? ???? ???? ????-?????????? ?????? ??? ??.
- ?? ????????? ???? 0.1 ?????? ???? ??????? ???? ??? ?? ???????? ??????? ???? ??????? ?????????? ???? ??? ??.
5. ??? ??? ????????? ??????? ???????
5.1 ???? ????? (??????? 100 ??????? ???????)
| ???? ???? | ???????? ??????? | ???????? ??????? |
|---|---|---|
| ????? ????? | $150,000 – 300,000 | $300,000 – 600,000 |
| ???????????/????? ??? | $50,000 – 100,000 | $100,000 – 200,000 |
| ????????? ????? | ?????? ??? | $50,000 – 100,000 |
| ???? ?????? ??????/??????????? | ??????? | $100,000 – 250,000 |
| ??? ???? | $200,000 – 400,000 | $550,000 – 1,150,000 |
Gravity separation typically costs 2-3× less in capital investment.
5.2 ????? ?? ???????? ????: ????????????? ?????? ???? ????? ????????
| ???? ???? | ???????? ??????? | ???????? ??????? |
|---|---|---|
| ????? | $0.15 – 0.30 | $0.30 – 0.60 |
| ??????????????? ??????? | $0 – 0.10 (water only) | $0.50 – 2.00 |
| ????? ???? | $0.05 – 0.15 | $0.10 – 0.30 |
| ???? | $0.10 – 0.20 | $0.15 – 0.30 |
| ???? ????????? | $0.02 – 0.05 | $0.10 – 0.30 |
| ??? ???????? ???? | $0.32 – 0.80 | $1.15 – 3.50 |
Gravity separation operating costs are typically 2-4× lower than flotation.
6. ?????? ??? ?????????нд???? ?????
??????? ?????? ???? ????, ????????? ????? ???????????? ???? ?????? ??? ?????. ???? ???????? ???????? ????? ?????? ????? ???????? ????????? ??? ??.
??????? ??????? (????? ????)
???????? ???? ??????? ?????? ??????? ???? ??????? ???? ?????? ??? ?? (???? 75 ?????????? ????), ???? ??????? ??????? ?????? ????? ???? ?????? ???. ? ???? ?????, ?????-???? ??? ?????? ???? ??? ??. ????????????? ?????? ?????? ?????? ??? ???? ?????? ????????? ????????? ??? ??? ??, ?? ??????? ??????????? ????????? ????? ??? ??.
?????????? ?????? ??? ????????
?????? ???????, ????? ??????? ??? ??????? ???? ????????????????? ???????? ??????? ???? ?????????? ??????? ????????? ????? ???? ??? ??. ???????? ??????? ?????????, ?????????? ??? ???????? ?? ?????? ??? ??, ???? ????? ??????? ?????? ???? ??? ?? ??? ???? ???? ??? ???? ??????????? ??? ???????? ?????? ?????? ???? ??? ??. ?????? ???????? ??????? ????? ?????? ????? ??? ??, ?????? ?????? ???????? ???? ????????? ????? ??? ???? ??? ??, ??? ?????????? ??????? ???? ???? ???? ??? ????? ??? ??? ??.
???????? ?????? ???? ??????? ????????-???????? ?????? ????? ??? ??? ???? ??????
?????? ???? ?????????????, ?????? ??????? ?????? ??????? ?????? ?? ? ????? ????? ????? ??????? ??????? ????? ??. ????? ??? ??? ?????? ???? ???? ???? ???? ?????? ?????? ???????? + ???????? ????????????? ??.
?? ???? ????????? ???? ???? "????? ?????" ??? ???????? ??????? ??? ?????? ?????????? ?????? ????? ???, ?? ????? ???????? ???????? ??????????? ???? ????? ???????? ??????????? ?????? ????? ??. ??????, ???? ?????? ??? ?????? ???????? ??? ?????? ?????? ?? ??? ???? ??? ? ???? ??? ?? ??? ?? ??????????? ??? ?? ??? ??.
??????? ???????????:
- ????? ????????: ??????? ???? ????? ?????????????? ????????? ???????????? ???? ?????? ???????? ???? ??? ??. ? ??? ? ???? ??? ??????? ?????, ???? ????? ?????? (?????? 40-60% ???? ????? ?????? ??????????) ?????? ??? ??.
- ?????????? ????????: The remaining tailings—which now only contain the microscopic, hard-to-catch gold—are sent to the flotation cells.
?????? ???? ??? ???? ????? ??????? ??? ?????, ??? ????? ???????? ????? ??????? ??????????? ?????? ??? ? ??? ??? ??, ???? ????? ??? ???? ????? ??? ???? ? ????? ???? ??????????? ????????? ?????? ??, ??? ???? ????? ???????? ????????????????? ??? ??????? ?????? ??????? ??? ??.
???????????? ?????? ??? ????? ???????? ?????? ???? ??????? ???????
?????? 1: ??? ????????????? ?????? ?????? (gravity separation) ?????????? ???????? ????? ???
A: Yes. Gravity separation typically has 2-4× lower capital and operating costs than flotation. No reagents, simpler equipment, and less energy consumption.
???: ??? ???????? ???????? ???????? ???? ????
A: ???? ??? ?? ???? ???? ????. ???????? 0.2-0.3 ???? ???? ???? ????? ??????? ???? ??????? ??? ????? ???. ???? ???? ???? ???? ????????????? ? ??????? ????????? ?????? ??.
Q3: ??? ????????????? ?????? ?????? ?????????? ?????? ?? ??? ???
A: ???????-???? ?????? ????????????? ???? ??????? ???? ???? ????. 0.1 ?????? ???? ??? ???? ??????? ?????? ?????? ?????????? ??? ??? ??, ?????? ? ???????? ???????? ????? ???????? ??? ??.
?????? 4: ?? ?????? ???????? ???? ??? ?????? ???
?: Graviti ??????. ?? ?????? ??????????? ????? ???? ??? ??? ???-???? ???????? ??????? ??? ??. ???????? ???? ?????????? ???? ??? ?? ??? ?? ?????? ?????? ??? ????????? ???? ???? ??? ?? ???? ?????? ???? ??? ??.
????? ?????? ?????? ???? ???????? ??????? ??? ????? ???????? ????? ???? ???? ???? ????
????? ???????? ??? ???????? ?????? ????? ?????? ???? ? ?? ?????? ?????? ???? ?? ?? ???? ???. ? ???? ?? ?? ?? ?????? ????? ?? ???? ???? ????? ??.
????????????? ?????? ??? ?????? ???? ??? ??????:
- ????? ?????? ???? ??? ???? ??????? ??? (?????, ????, ???????, ????????)
- ?????? ???? ????? ??? ?? (>0.1 mm)
- ???? ??? ???????, ??? ??? ?????????????? ????????? ???? ??.
- ?????? ???? ??????? ????? ??.
?????? ????? ???????? ???? ???:
- ????? ??? ???? ????????? ?? (<0.1 ????)
- ????? ?????? ????? ????????? ?? (??????, ?????, ????, ????)
- ???? ??? ?????? ??? ???? ???? ???? ???? ???????????? ????? ??.
- ????? ???? ??? ???? ?????? ?????? ????? ??? ?????? ??????? ???? ??.
?????? ??????? ?????? ??? ?????? ???????? ??:
- ????? ??????? ???? ????? ???? ??? ??????? ???? ?????? ???? ???? ?? (?????? ???????? ???????).
- ??? ?????? ?????? (?? ?? 95%+) ???????? ???? ??? ???
??????? ??????? Start with thorough ore characterization. Test for mineralogy, liberation size, and density differences. Then select the method—or combination—that optimizes recovery, cost, and environmental performance for your specific deposit.
????? ??????? ?????? ???? ???? ???? ?????? ???? ???
?? ??????, ??? ??????? ???? ????????? ????? ?????? ???? ???, ????? ???????? ??? ???????? ?????????? ?????? ??? ??. ????? ?????? ????? ??? ??? ??? ??:
- ????? ??????? ????? ???.
- ????????? ?????????? ??????? ????? ???
- ?? ???????? ???? ??????? ????? ?????? ???
- ????? ??? ???? ?????? ????? ?????
??? ????? ???? ?????? ???. ??? ?????????? ?????? ????.
?????? ?????
??????? ?????