Summary: ????????? ???? ??? ??????? ?????? ? ????????? ?? ?? ?????? ???? ?????. ????? ????????? ??????? ??? ????? ? ?????? ?????? ??? ????? ?????? ???? ????? ???....
????? ??????????? ?? ??????? ?????? ???? ?????? ??? ?? ?????????? ???????? ?? ?? ?? ????? ?????? ?? ??? ???: Which beneficiation method should I use—froth flotation or gravity separation?
????? ???? ??? ??????? ?????? ? ?????? ????? ???? ??? ?? ???? ??????? ???? ????? ????? ???. ??????? ?????? ?? ???? ????? ??? ??? ???? ????? ???? ??? ???? ????? ???? ????? ???? ???????? ??????? ???????? ?? ???? ?? ???? ?????? ??????? ???????. ?? ?????? ?????? ????? ???? ??? ?? ?????? ???? ??? ??? ?? ?? ???? ??????? ???? ??????? ???? ????? ??????? ?? ???????? ??? ??????? ??????? ?? ????? ????? ?? ????? ???? ? ???????? ????.
????? ?????? ?????? ???? ?? ?????? ????? ?????? ??? ??????? ???? ???. ??? ??? ?????? ??????? ????????? ??????? ????? (OpEx) ? ????? ?????? ?????????? ???? ? ?? ?? ???? ???? ???? ????? ???? ??? ? ?????? ??????? ???????.
????????? ???? ???? ?? ????? ???? ???? ??????? ???. ??? ??? ?? ????? ???? ? ???? ??????? ????????? ???? ????? ??? ???? ??? ???? ???? ???? ??????? ?????????? ??????? ???????? ?????? ? ??????? (????? ??? ??? ? ???) ???.
??? ????? ???? ???? ??? ??? ?? ?????? ????. ?????????? ??????????? ???? ?? ???? ??????? ??????? ???????? ????? ??????? ?????? ?? ???? ??????? ????? ???? ????? ???? ?? ??? ????????? ? ??? ?? ?????? ????? ???? ???? ???????? ?????????????? ??????? ??????? ???????.
?? ????? ?????? ?????? ???? ??? ?? ?????? ?????? ???? ????? ???? ?? ???? ????? ??? ???.
???? ?????? ??????? ?????? ? ??????? ?????????
???? ????? ?????? ??? ????????? ??? ?? ??? ?? ??? ?? ?????? ???? ???? ??????? ?? ????? ????? ????? ? ???? ?? ??????? ???????.
1.1 ???????? ?????? ????? ??? ???????
????? ???? ?? ?????? ??? ???? (SG) ??? ???????? ??????? ????? ? ????????????? ?????? ???? ??????.
????? ??? ?? ???: ???? ??? ???? ?????? ???? ?? ???? ???? ???? (?? ??????? ????? ?? ???) ??????? ???? ???????? ??????? ??????? ??????? ? ?? ????? ????? ?? ?????? ???????? ?? ???? ?? ???? ???? ????? ?????? ???? ??? ? ???? ???????.
???: ???? ????? ??? ??? ?????? ???? ??? ???? ?? ????? ????? ?????????? ???? ???. ??? ????? ????? ?????? ? ??? ????? ??????? ?????? ?????? ??????? ?????? ?????? ????? ??.
??????? ???? ???????: ??????? ?????? ?????? ??????????? ???????? ??????????? ???? ?? ???? (???? ??? ???)
??????? ????: ???? ???????? ?? ?????? ??????? ???????? ?? ???? ?? ?? ???? ?????? ?????? ?? ??????.
1.2 ????????? ?? ????? ??? ???????
????????? ?? ?????? ???? ????? ?? ?????? ??????? ? ?? ???? ???? ????? ??????. ??? ??? ???? ??????? ????????? ????? ??? ?? ???? ??? ????? ?? ?? ??? ??? ?????? ???? ?? ?????? ?? ????? ?????? ????? ?? ?? ?? ????? ???.
????? ??? ?? ???: ??? ????? ???? ??? ?? ????? ?? ? ???? ??????? ??? (????????????? ? ????????) ?? ?? ???? ?? ??? ??????. ??? ???? ??????? ?? ??? ??????? ?? ???? ????? ??????? ???????? ? ?? ?? ???????? (???? ??) ???????. ????? ?? ??? ?? ???? ???? ????? ??????? ???? ???? ????? ???????? ?? ???????? ??? ?? ?? ??? ???? ???? ????? ???????? ? ?? ??? ???????? ? ?? ???? ???? ????? ??? ???????? ?? ?? ??? ???????? ??????. ??????? ???? ???????? (??????? ??) ?? ??? ????? ??? ???????.
??????? ???? ???????: ???????? ????? (??????? ?? ?????????)? ????? ??????????? ??????? ??????????? ???? ???????? ????????????? ? ??????? ???? ????????
????????? ????: ???? ??????? ???? ??????? ???? ????? ??????? ?? ???????? ???? ?????? ? ?? ??? ??????.
2. ????????? ???? ??? ????? ?????? ? ?????? ????????? ??
| ????? | ????? ?????? | ????????? ???? |
|---|---|---|
| ??? ??????? | ??????? ???? (????? ??????) | ???? ??? (????????) |
| ?????? ????? ????? | ?? ???? ?? ??? (??? ???????? ?? ?.?? ????????) | ?????????? ??? (??? ???????? ?? ???? ????????) |
| ?????? ??????? (OpEx) | ????? ?? (???? ?? ?????? ?? ? ???? ?????) | ???? (??????? ???? ??????? ????????? ? ?? ??? ?? ????? ????) |
| ??????? ?????????? | ????? (????? ????????? ????? ?????? ?? ???? ???????) | ???? (????????????? ???? ???? ??????? ????? ? ???? ?? ?????? ???? ?? ?????) |
| ???? ????? ??? | ??? ?????/??? ????? ??? ???? ???? ???? ??????? ???? ?????? ????? | ??????? ????? ?????? (??? ???? ???? ????)? ???? ????? |
?. ????? ???? ??? ????????? ???? ??????? ???? ? ?????????
3.1 ????? ?? ??????? ???? ?????? ????? ???
| ??? ?????? | ???? ????? ??? | ??? ????? ??? ?????? |
|---|---|---|
| ???? ????? | ??? ???????? | ????? ????? ???? ???? ?? ???? ? ??????? |
| ???? ??? ??? (????) | ??? ???????? | ?????? ????? ??????? ?? ??????? ??????? ?????? ??????? ??????? ???????. |
| ??? | ???????? | Very high density (6.8–7.1 g/cm³) |
| ?????? | ??????? ?????????? | ???????? ?? ????? ???? |
| ?????? ????? | ????????? ?????? ????? | ??????? ????? ???? ?? ???? ????? |
| ?????? | ?????? | ?????? ????? ?? ???? ???? ???????? |
| ??? ??? (????) | ??????? ?????? | ???????? ??? ?????? |
| ???? ??? | ???? ??? | ?????? ????? ???? ?? ??? ???? ?????? |
????? ?????: ??? ????? ????? ?????? ??? ????? ??? ?????? ????? ??? ???? ????? ?? ??? ?????? ????? ??????? ???? ???? ????? ?????? ??? ????.
3.2 ????? ?? ????????? ?? ?????? ?????? ???
| ??? ?????? | ???? ????? ??? | ??? ????????? ??? ?????? |
|---|---|---|
| ??????? ????? ?? | ???????????? ???????? ???????? | ???????? ??????? ?? ???? ?? ????????? ???? ???????. |
| ?????????? ???-??? | ????? ???????? | ???? ?????? ???? |
| ??? (???? ???? ??????) | ??? ????? ????? | ??? ???? ?? ???????? ???? ?? ????????? ???? |
| ??????? ???? ???? | ???????? | ????? ?????? |
| ??????? | ????????? | ??????? ???? ????? ??? |
| ????? ?????????? ?????? | ????????? ????? | ???????? ?? ??? ??????? ????? ???. |
| ?????????? ??????? | ?? ????? ?????? ?? ?.? ???????? | ????? ?? ??? ????? ???? ???? |
| ??????? ?????? (????) | ???????? ?????? | ?? ????? ???? ?? ???????? ????? ???? ?????? |
????? ?????: ??? ??? ????? ??????? ??? (???? ?? ?.? ????????) ?? ???? ???????? ?????? ???? ???????? ??? ???? ???? ?????? ????? ?????? ????????? ???.
4. ????? ?????? ???? ???? ??????? ?????? ?? ????? ????????? ?? ??
?????? ???? ???? ???? ??????????? ??? ??????? ?????? ? ????????? ???.
| ????????? ?????? ???? | ????? ?????? | ????????? ???? |
|---|---|---|
| ???? (>? ????????) | ? ???? | ? Poor – particles too heavy for bubbles |
| Medium (0.1–2 mm) | ? ????? ???? ???? ????? ?????? | ? ??? ?? ????? ???? ????? |
| Fine (0.01–0.1 mm) | ?? ????? ?? ???? | ? ???? |
| ??????? (<0.01 ????????) | ???? ???? ???? | ?? ?? ??? ?? ???? (??????? ??????????????? ?????) |
??? ?????:
- ??? ??? ???? ??? ????? ??? ?? ?.? ???????? ???? ??????? ??????? ?? ???? ????? ???? ???????? ???????????? ???.
- ??? ??????? ??????? ????? ???? ??? ??? ???????? ????? ?????? ????????? ?????? ???? ?????? ???? ???.
5. ?????? ????????? ?????? ? ???????????
5.1 ???????????? ?? ?????? (??????? ????? ??? ?? ?? ????)
| ???? ????? | ??????? ?????? | ??????? ?????? |
|---|---|---|
| ???? ??????? | $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.
????? ??????? ?? ???? ?? ??: ??????? ?????? ?? ????? ?????? ????????? ??
| ?QUESTION: "Cost Component" in Persian is ??? | ??????? ?????? | ??????? ?????? |
|---|---|---|
| ???? | $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. ????? ??????? ? ??????????
????? ????? ?? ???? ?????? ??????? ???????? ????? ?? ??? ??????? ???? ???????. ????????? ????? ?? ??? ???? ??????????? ?????? ????? ???.
?????? ?????? (????????? ?????)
????????? ?????? ?? ??? ?? ????????? ?? ???????? ???? ???? ????? ??? (???? ???? ?? ?? ??????) ?? ???? ??????? ??????? ?? ???? ??????? ?????? ???? ????. ??? ??? ??????? ????????? ???????? ???? ? ?????? ????? ???. ??????? ???? ???? ???????? ???? ?? ???? ????? ??????? ?? ?????? ??? ? ?????? ??????? ????? ???? ???? ???? ????? ?? ???? ??????.
???? ???? ?????????? ? ????????
?? ?????? ?? ???????? ????? ?? ????? ??????? ?????? ??????? ????? ? ?????? ????? ???? ?????????? ???? ?? ??????? ????????? ???? ??? ????? ??? ??? ????. ???? ?????? ????????? ?? ???? ???? ??????????? ??????? ? ????????? ??????? ?????? ???? ???? ?????????? ???? ??? ????? ? ??????? ????? ??????? ????? ?????? ??? ? ????? ???? ???? ????? ????????. ??????? ?? ???? ????? ???? ?? ?? ??????? ??????? ?? ??? ???? ?? ???? ?????????? ?? ??? ??? ? ?? ?????? ?? ??? ??????? ?????? ?? ???? ?????? ???????? ?????????? ?? ????? ??????? ? ???????? ????? ????.
???? ?????? ?????-????????? ???? ?????? ??????? ??? ? ????? ????
?? ?????? ????? ????? ?????????? ?????? ?? ???? ?? ?? ??? ???? ???? ??????? ??? ????? ????? ????? ???????????? ?? ?????????? ????. ?????????? ???????? ???? ??????? ????? ????? ??? ? ????? ????? ???? ??????? ????? + ????????? ???.
??? ?? ????? ?????? ?? ??? ???? ???? ? ?? ??? ??? ????? ???? ???????? ??????? ????? ????? ???? ?? ??? ?? ???? ???? ????? ?? ??? ? ?????? ???? ???? ???????? ??? ???? ???? ??????? ???. ????? ?? ???? ???? ??? ???? ???? ???? ????? ????? ?? ?? ???????? ????? ?? ??? ??? ???? ? ?? ???????? ?? ??? ???????.
???? ???? ???????:
- ???? ?????: ??? ???? ????? ??? ????? ?? ?? ?????????? ?????? ???? ?? ???? ?? ?? ??? ????? ???? ???? ??????. ??? ????? ???? ???? ? ????? ???? ???? (???? ?? ??-??? ?? ????? ?????? ??? ?? ????? ???????) ?? ?? ?? ???????.
- ????????? ?????????: The remaining tailings—which now only contain the microscopic, hard-to-catch gold—are sent to the flotation cells.
?? ??? ???? ????? ? ??? ?? ?????? ????? ???? ??????? ???? ???? ?? ????? ???? ?? ?? ??? ?????????? ???? ???????? ?? ??? ??? ???????? ???? ????? ?? ???? ??? ??????? ??????? ??????? ??????? ? ????? ???? ???? ?? ????? ??????? ?? ???? ???? ????? ???????.
?????? ???? ?? ???? ??????? ?????? ? ?????? ?????? ????? ???? ??
???? ?: ????? ?????? ???????? ?? ????????? ????
A: Yes. Gravity separation typically has 2-4× lower capital and operating costs than flotation. No reagents, simpler equipment, and less energy consumption.
???? ?: ??? ?????? ??????? ???????? ??????? ??????? ???? ????
A: ???? ???? ????? ???? ? ??????? ????? ????. ?????? ?????? ????????? ???? ??????? ?? ?.? ?? ?.? ???????? ?? ?????? ???? ??????? ???. ????? ???? ???? ??? ???? ???? ???? ????? ????? ???? ???.
???? ?: ??? ??????? ???? ???????? ????????? ?? ??????? ????
???: ???? ??????? ????? ???????? ?? ???????? ??????? ????? ????. ??????? ?????? ?? ??? ?.? ???????? ???????? ??????? ?? ???? ?? ????????? ?? ??? ???? ????? ????.
???? ?: ???? ??? ????? ???????? ????????? ????
???: ??????? ??????. ?? ???? ??????? ??????? ??????? ? ?????????? ?????? ????? ??????. ?????? ????? ?? ??? ??????? ???? ?? ???? ??????? ???? ? ?????? ????? ?????? ?? ???? ????? ???.
????? ??? ??????? ?????? ? ??????? ?? ?? ???? ??? ??? ???? ??? ?????? ????
?????? ??? ????????? ?? ?? ? ??????? ???? ??? ???? ?? ???? ?????? ???? ???? ??? ??? ?? ???? ??? ?? ?????? ??? ??????? ????? ?? ????.
????? ?? ??????? ????? ?? ?????? ???????:
- ???? ????? ??????? ??? ??? ????? ?????? ???? (???? ???? ??????? ??????)
- ???????? ?? ?????????? ??????? (>?.? ????????) ????? ???????
- ??? ?? ??????? ????????? ???? ? ??????? ???? ???? ???? ?????
- ??? ????? ???? ?? ?????? ?????
?????? ?????? ????? ????????? ????? ??? ??:
- ???? ??? ??????? ??? (
- ???? ????? ??? ??? ???????? (??? ???? ???? ????) ?????
- ???? ??? ???? ????? ???? ???? ?? ???????????? ???? ?????
- ??? ????? ????????? ? ??????? ???? ?? ???? ????????? ?????
?? ??? ????? ?? ???? ?????? ????? ???:
- ??? ???? ??? ???? ?? ?? ??? ???? ????? ???? ???? ? ???????? ????? ??? ??? (?? ?? ??????? ???? ???? ???)
- ??? ????????? ??????? ??? ?? ?????? ???? (???? ???+).
????? ?????: 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? ?? ?????????? ???? ?????? ?????? ?? ???? ??????? ??????? ? ????? froth ?? ????? ???????. ??????? ?? ????????? ?? ??? ??? ????:
- ??? ???? ??? ?? ????? ????
- ???? ?????? ????? ?? ????? ????
- ????? ???????? ??????? ???? ???????
- ?????? ????????? ????????? ? ???????
???? ????? ?? ?? ???? ??????. ???? ?? ??????? ????????? ??? ??????.
?????? ??????
????? ????