Summary: ?????? ????? ??? ????? ????? ????????? ?????? ???????. ??? ?? ????????, ???????, ?????? ?? ????? ?????, ????? ????? ?? ???? ?????? ?????? ??????? ???...
????????? ???? ????? ???????, ??? ??????? ???????? ????? ??????? ???? ???: Which beneficiation method should I use—froth flotation or gravity separation?
????? ?????? ??? ????? ??????? ??? ?????? ???? ???? ??? ???? ????? ????????? ??????? ????. ????? ??????? ??? ?????? ?????? ?? ????? ????? ??? ??????? ??? ????? ?????; ??????? ????? ???? ??????, ???? ???? ???? ???? ?????? ???? ???. ????? ???, ???? ??? ??? ????? ????? ?? ??? ???? ?????? ?????? ???? ??? ????? ???????? ????? ?????? ????? ?????, ??? ??? ??? ???? ????? ????? ????.
????? ????? ????? ?? ??? ?? ????? ??????? ?????? ??? ???????. ??? ????? ????? ?????? ??????? ?????? ??????? (OpEx) ??????? ?????, ?? ????? ???? ???????? ???? ????? ????, ????, ??? ?????????.
??? ?????? ????? ?? ????? ?????? ??? ???? ?? ???????. ??? ???? ?????? ????? ??????? ?????? ?????, ?? ??? ????? ?????? ??????? ?????? ???? ????? ????, ??????? ???????? (??? ?????, ?????, ??????).
??? ?? ???? ???? ????? ?? ???. ???? ????????? ???????? ????? ??????? ? ???? ???????, ?????? ????? ??????? ??? ?????? ?????? ??? ????? ??????? ???? ????, ???? ?? ???????? ??? ???? ?? ?????? ????????? ?????? ???????.
??? ??????? ??????? ??????? ??? ??? ??????????? ???????? ?????? ??????? ?????.
??????? ????? ?? ????? ????? ????? ?????
??? ????? ???? ???? ?????? ???? ?? ?????? ????? ????? ?? ?????, ???? ????? ???? ?? ?????? ?????? ??????.
??? ????? ?????gravitation???
????? ????? ?????? ?? ????? ????? ??????? (SG) ??? ??????? ????? ?????? ????? ????? ??? ????.
??? ?? ????: ???? ???? ???? ?????? ????? ???? ???? ????? ???? (?? ?????? ??? ???? ????), ???????? ?????? ?????? ??? ???? ???????? ???? ????, ???? ??????? ????? ????? ?????? ????????.
?????: ?? ???? ???? ?????? ??????? ??? ????? ???????. ?? ?????? ????? ????? ????? ?????? ???? ????? ?????, ?????? ??????? ???? ?????.
???? ???????? ??: ?????, ??????? ??????, ????? ??????, ????? ????? ?????? (??? ??)
????? ???????: ??????? ????? ???? ???????? ???? ??? ??????? ???? ???? ?????? ?? ?????? ????? ????.
1.2 ??? ????? ????? ?????????
????? ??? ????? ?? ??????? ????? ??? ??????? ?????? ?? ??? ????. ??? ?????? ??? ?????? ??????? ????? ??? ?? ????? ??? ????? ??? ??????? ????? ???? ??????.
??? ?? ????: ?????? ??????? ????? ???? ???????? ????? ???? ???????? ?????? ???????? (?????? ???????) ???? ??? ??????. ???????? ??? ?????? ????? ??????? ?????? ??? ????, ??????? ?? ????? ????????? (???? ???). ???? ???? ????? ???? ????, ?????? ?????? ???????????? ??????? ?? ????? ?????? ??????? ?????? ???? ????, ?????? ??? ???? ???????? ????? ?????. ???? ?????? ???????????? (????? ???) ?????? ??????.
???? ???????? ??: ???? ????? (????? ?? pneumatic), ????? ?????, ????? ?????? ??????, ?????? ??????? ??????
??? ????: ?????? ?????? ?????? ???????? ???? ??? ?????? ??????? ????? ?????? ???? ????.
2. ??????? ???????? ??? ????? ?????? ?????? ???
| ????? | ????? ????? | ??? ?????? |
|---|---|---|
| ????? ?????? | ?????? ?????? (?????? ?????) | ????? ?? ??? ???? (???????????) |
| ???? ????? ????????? | ?? ?? ???? (150 ?"? ?? 0.05 ?"?) | ?? ???? (0.1 ?"? ?? 0.01 ?"?) |
| ?????? ????? (OpEx) | ???? ???? (????? ?? ?????, ???, ????? ????) | ???? (???? ??????? ????? ?????? ?????? ?????) |
| ????? ??????? | ??????? (???? ???? ????? ????? ???? ????????) | ???? (?????? ?????? ??????? ??????, ?????? ????? ?????? ?????) |
| ??????? ??? | ??? ?????/????, ??? ????, ???, ???????, ???, ??? ?????? | ????? ??? ( ?????, ?????, ???, ????), ??? ???? |
3. ????? ??? ???? ?????? ?????? ????? ??????? ?"? ?????
3.1 ??? ????? ????? ?????? ??? ?????? ????? ?????
| ??? ???? | ??????? ??? | ???? ??? ?????? ???? |
|---|---|---|
| ??? ???? | ??? ???? | ???? ?????? ???? ?? ???/??? ?????? |
| ??? ??? ??? (??) | ??? ???? | ??? ????? ?? ????? ???? ?????? ????? |
| ???? | ??????? | Very high density (6.8–7.1 g/cm³) |
| ?????? | ??????, ????????? | ??????? ???? ?????? ????? |
| ??? ?????? | ???????, ??????, ????? | ??????? ????? ?????? ???? ????? |
| ??????? | ??????? | ???? ?????? ?? ??????? ???? |
| ???? ???? (???) | ???????, ?????? | ??????? ???? ?????? |
| ??? | ?????? ???? ??? | ???? ??????? ?? ??? ????? ??? |
??? ?????: ?? ?????? ???? ??? ?? ????? ??????? ???? ?-1.5 ?????? ????? ?????, ?????? ??????? ??? ????? should ????? ?????? ?????? ???.
3.2 ??? ?????? ?? ??? ??? ??? ?????? ????? ?????
| ??? ???? | ??????? ??? | ???? ????? ?????? |
|---|---|---|
| ?рыг?? ????? | ?????????, ??????, ??????? | ?????? ?????? ?????? ??? ??????? ????? ??????? ????? ??????. |
| ???? ????? ?????-???? | ????, ???????? | ????? ???? ?????? |
| ??? (????, ?????? ??????) | ??? ?????, ????? | ??? ???? ?????? ???????? ???? ????? ?????? |
| ????? ???? | ???????? | ????? ?????? ?? ?????? |
| ?????? | ????????? | ?????? ????? ???? |
| ?????? ????? ??????? | ???????? ?????? | ???? ????????? ????????????? |
| ????? ??????? ?????? | ?? ????? ??? ?-0.1 ?"? | ??avity ???? ???? ????? ?? |
| ??????? ??????? (??? ???) | ?????, ?????? | ???? ?? ????? ?? ?????? ??????? |
??? ?????: ?? ???? ?????? ??? ??? (???? ?-0.1 ?"?) ?? ????? ??????? ?? ????????, ???? ?????? ?????? ??? ????? ??????.
???? ???? ??????? ?????? ????? ????? ????? ?????Fingerprint
???? ??????? ??? ?????? ????? ?????? ??? ????? ????? ??? ?????? ?????? ?????? ???.
| ???????? ???? ??????? | ????? ????? | ??? ?????? |
|---|---|---|
| ?? (>2 ?"?) | ? ????? | ? Poor – particles too heavy for bubbles |
| Medium (0.1–2 mm) | ????? ???????? ?????? | ? ??? ?? ????? ????? |
| Fine (0.01–0.1 mm) | ?? ???? ?? ???? | ? ????? |
| ?????? ???? (<0.01 ?"?) | ? ???? ???? | ?? ???? ?? ???? (???? ?????? ?????? ???????) |
?????? ???????:
- ?? ???? ??? ????? ??? 0.1 ?"?, ????? ????? ??? ?????? ??? ???? ??????? ?????? ????? ?????? ??????.
- ?? ?????? ???? ????? ???? ?-0.1 ?"?, ???? ??? ????? ??? ?????? ????? ?????.
?????? ???? ??? ??????
????? ????? (???? ?????? ???? 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.
???? ????? ?????: ????? ??????? ??? ????? ????? ????? ???? ????
| ???? ???? | ???? ?????? | ???? ????? ????? |
|---|---|---|
| ??? | $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. ?????? ??????? ?????????
???? ?????? ????, ?????? ?????? ???????? ???? ?????? ?????? ????. ??????? ???????? ?? ?? ???? ?????? ?????? ??????? ?? ?????? ??????.
????? ?????? (?????? ???????)
????? ????? ?????? ????? ????? ???? ?????? (?????? ?????? ???? ?-75 ??????) ??? ?????????? ????? ????? ???? ???? ?? ????????. ?? ???? ????? ??????? ?????? ??????? ???? ??????. ????? ??????? ????? ?????? ???? ?????? ???? ???? Significant ????, ?? ?????? ????? ????? ?? ??????? ?????? ?????.
????? ?????? ?????
????? ???? ??????? ????? ??????, ?????? ??????? ???????, ???? ?????? ?????? ????? ? flotation ????? ???? ????. ?????? ???????? ?????? ?? ????? ????????, ?????? ??????, ?????? ??????? ??? ????? ?????? ????? ??????? ???????? ??????. ????? ?????? ?????? ?? ????, ??????? ??????? ??? ????? ???? ????? ???? ??????, ?? ????? ?? ??????? ????????? ??????? ?????? ???? ????.
???? ????? ????? ?? ????-???? ????? ?????? ?? ??? ?????? ???????
?????? ?????? ?? ???????, ??????? ????? ???? ??? ???? ??????? ?? ???? ??? ???? ?? ??? ?????? ???? ????? ??????. ????????? ??????? ????? ???? ????? ??? ??? ?????? ??????? ??? ???? ??????? ?? ????? + ?????.
?? ??? ?? ????? ???? ?? "??? ?????" ??? ??? ??? ????? ???? ?? inside ?????? ????????, ????? ?? ???? ??? ???? ?? ????? ??? ????? ?? ????????. ?????, ????? ???? ????? ???? ??? ????? ??? ??? ????? ???? ????? ????? ?????? ??????? ??????.
????? ????? ???????:
- ???? ????????: ????? ??????? ????? ????? ??? ????? ????? ??????? ?? ?'?? ???????. ?? ???? ??? ?? ??????? ??????? ??????? ?? ??? ????? (?????? ?? ?-40-60% ??????? ?????? ?? ????).
- ????? ???? ?? ???? The remaining tailings—which now only contain the microscopic, hard-to-catch gold—are sent to the flotation cells.
?? ??? ???? ??????? ?????? ?????? ????, ??? ????? ????? ????? ?? ???? ????? ????????? ??????? ????? ????, ???? ?????? ????? ????? ?????? ???? ??? ??????? ???? ?????? ??????, ?????? ????? ??????? ????? ?????? ????? ????? ?? ??????????? ??????.
????? ?????? ?? ????? ?????? ??????? ????? ?????? ????
???? 1: ??? ????? ?????? ???? ???? ???????
A: Yes. Gravity separation typically has 2-4× lower capital and operating costs than flotation. No reagents, simpler equipment, and less energy consumption.
????? 2: ??? ????? ????? ?????? ????? ????????
?: ?? ???? ??????? ?????? ?????. ????? ????? ?? ????? ????? ??????? ??????? ?????? ?-0.2-0.3 ?"?. ?????? ???? ????? ????? ?????? ?????? ???? ??????? ????? ?????? ?????.
????? ?????: ??? ????? ?? ??? ??? ?????? ????? ?????? ????????????
A: ?? ????? ??????? ?????? ?? ??????? ????????. ?????? ?????? ????? ?? ????? ???? ?-0.1 ?"?, ???? ??????? ????? ???????? ?????? ????? ??.
????? 4: ???? ???? ??? ???????? ???? ???????
?: ????? ???????. ??? ???? ?????? ??????? ?????? ??????? ????? ?? ?????. ???????? ????? ?????? ?????? ??????? ????? ??? ????? ????? ???.
??? ????? ??? ????? ??????? ?????? ????? ??? ????? ???
????? ??? ???? ?????? ?????? ?????? ?? ??? ??? ?????? ???? ????? ?? "??? ????." ?? ????? ?? ????? ??????? ????? ???? ???.
??? ?????? ????? ????:
- ?????? ???? ??? ??? ???? ????? ???? (???, ???, ???????, ??????)
- ?????? ????? ??????? ???? (>0.1 ?"?)
- ??? ???? ?????? ???, ???? ???????? ??????
- ?? ?? ????? ??? ?? ??????
??? ????? ??? ????:
- ???? ??? ??-?????? (<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.
???? ????? ?????? ???? ?????? ????
?-麻豆社, ??? ?????? ??????? ????? ??????? ??????, ???? ????? ????? ?????. ???????? ?????? ????? ???:
- ????? ?? ????? ???
- ??? ?? ????? ?????? ?????????
- ??? ????? ???? ?????? ?????
- ???? ?????? ??? ??????? ?????
??? ??? ????? ???? ?????? ?????? ????? ????.
??? ?????
??? ?????