Summary: ???? ?????????? ??????? ?????? ????? ?????? ??????????? ????? ??????. ???????, ????????, ????????? ??????? ????? ????? ??????? ?????? ???? ???????? ?????????? ????????????? ??????????? ???? ????????....
???? ???????? ???????? ?????????, ???? ???????? ?????? ?????? ????????????? ????????: Which beneficiation method should I use—froth flotation or gravity separation?
???????? ?????? ????? ?????? ????????? ?????? ???????? ?????????? ????? ??? ??????????????? ???. ???????? ?????? ?????? ???? ????????? ???? ??????????????? ??????????? ???????????; ?????? ????? ????? ????? ????????????, ???? ?????? ????? ????? ?????????. ?? ???????????, ?????? ????????? ???? ?????? ???????????? ?????? ?????????????????, ??????????????? ????????? ???????? ?????????? ?????????????? ???????????????? ?????????, ????????? ?????? ?????????? ??????????????.
???????? ?????????? ?????? ?????? ????? ??? ????????? ???? ????? ??????????????????. ??? ????? ?????????? ???????? (OpEx) ????? ????? ???????????????? ??????????? ?????????? ???????, ???? ?????? ?????, ??????, ???? ????? ????????????? ???????????.
?????? ????????? ?????? ?????? ?????????????? ??????????????? ???? ???????????. ?????? ??????? ?????????? ?????????? ?????? ???????? ???????? ?????????, ???? ??? ???? ????????, ????????? ????? ????????? ????? ??? ??????? (?????, ???????, ????? ?????)?????? ?????????? ???? ????????????? ???????????.
????? ?????????????? ???? ???? ??????? ????? ????? ????????????????. ?????? ??????? ?????? ????????? ?????? ????? ??? (???????? ?????????) ????? ?????????: ????????? ?? ?????????? ????? ?????????? ????????? ????????????? ??????????? ???? ????, ???? ???? ?????????? ??????????? ????????? ???? ??????????????.
??? ??????? ???? ?????? ?????????? ???? ???????? ???????????? ?????? ???????? ???????????? ??????.
?? ??? ??????????? ??? ??? ????? ???ウト? ?????????
? ???? ???????? ???????? ??????? ??????????? ??????????? ????????? ??????????????????, ?????? ?????????? ????? ?????????????????? ???? ??????????????????????? ?????????????????.
1.1 ???????? ?????? ???? ????????????????????
??? ?????? ?????????? (???????????) ?????? ??????? ????? ??????? ????? ??????? ??????? ??????? ???????? ?????????.
??? ???? ???????????????????: ??????????? ????????? ???????????? ???? ?????????? (?????? ??????) ?????????, ?????? ????? ??????? ??????????? ????? ????? ??????? ????????????????; ??????? ??????? ????? ???????????????.
?? ??????: ??? ????????? ??????????????? ??????? ???????? ???????? ?????????. ???????? ???? ????? ??????? ??????? ????? ??????????? ???????????, ??? ?????? ??????????? ?????????????.
????? ????????: ????????, ??????? ?????????, ??????? ?????????? ????????, ?????????????? ?????????? ???????? (??????? ???????????)
??????? ??????: ?????? ?????? ??????????? ??????????? ????? ???? ??????? ?????? ?????????? ?????? ???????????.
1.2 ?????? ????????? ???? ???? ??????????
?????? ????????? ????????? ??????????? ??????????? ?????? ?????????????? ???? ?????????????????. ??? ??????????????? ???? ????????? ??????? ????? ?????????????? ???? ???? ?????????? ?????? ??????????? ?????????? ?????????? ??????????????????.
??? ???? ???????????????????: ??????????? ???? ?????? ????????? ??????? ???????????? ??????????? ???? ????????? ???????? ????????????? (?????????? ????? ?????????) ?????? ?????? ??????????. ? ??????????? ????????? ???????? ????????? ???? ?????? ???????????? (??????? ???????????) ??? ?????????. ????????? ????????? ???? ???????, ???????????? ????? ????? ?????????? ??????????????? ????????? ???????? ????????? ????? ?????????? ?????? (?????) ?????????????, ?????? ?????? ?????? ???? ????????????????????. ??????? (??????? ?????????) ??????? ???? ?????? ???????????.
????? ????????: ????????? ???????? (???????? ???? ????????????), ?????????? ???????????, ???????? ?????? ???????, ??????????????? ???????????? ???????? ????? ???????????
?????? ?????????: ???????? ??????????? ???????? ?????????? ????? ?????????? ?????? ???????? ???????????.
2. ??????? ?????? ?????? ????? ?????? ????????? ?????? ?????? ???????????
| ????? | ???????? ?????????? | ?????? ????????? |
|---|---|---|
| ??????? ???? | ???????? ???? (????? ????) | ?????? ???????????? (??????????) |
| ???????? ???? ????? | ???????? ???????????? (150 ???????? 0.05 ?????????) | ?????????? (0.1 ???? ???? 0.01 ????) |
| ????? ????? (OpEx) | ?????? ????? (??????????????, ???? ????? ????? ???????? ?????????? ?????????????) | ????? (????? ??????? ????????????? ????? ??????? ?????? ???????? ?????????) |
| ????? ?????? | ?????? (???????????? ???????????? ??????????? ??????????????) | ?lev (????????? ???????? ????????????? ???????????, ???????????? ???????? ????????????? ???????????????) |
| ???? ??????? | ???????/????? ?????, ?????? ????, ?????, ?????????, ????, ???? ??????? | ??????? ??????????? (?????, ???, ?????, ??????), ????????? ????? |
3. ????? ???????? ??????? ?????? ????? ???????????? ???????
3.1 ????? ?????????????? ?????????? ????????? ????? ????????
| ????? ?????? | ???? ??????? | ???????? ??? ??????????????????? |
|---|---|---|
| ??????? ?????? | ???????? ????? | ????/????? ????????????? ??????? ????? ???????? |
| ???? ????? ????? (????? ???) | ???????? ????? | ????????? ???????? ?????????? ??????? ????????? ???????? ????????????????. |
| ???? | ???????????? | Very high density (6.8–7.1 g/cm³) |
| ????????? | ??????, ???????????? | ????? ????????? ??????? |
| ???? ??????? | ??????????, ????????, ?????? | ?????? ????????? ??????? ???? ??????? |
| ???????? | ???????? | ???????? ?????????????? ????? ??????? |
| ??? ???? (??????) | ?????????, ????????? | ???? ??????? ??????????? |
| ???? | ????? ?????? | ?????? ???????? ??????????? ????? ???????? |
????? ????: ????? ???????? ????? ??????? ???? (specific gravity) ????? ??????????? ?????? 1.5 ??? ?????? ??????, ????????? ?????????????????? ????? ????? ???????????.
3.2 ?????? ????????? ????????? ??????????????
| ????? ?????? | ???? ??????? | ???????? ??? ??????????????????? |
|---|---|---|
| ???r? ??????? | ???????????, ????????, ????????? | ??????? ??????? ??????????? ????? ?????????????????? |
| ????-????? ??????? | ????????, ?????????? | ????????????? ????????? ??????????? |
| ????? (???????, ???????-??????) | ???? ?????????, ?????? | ?????????????? ???? ??????? ????????? ????????? ?????????. |
| ????? ??????? | ?????????????? | ??????? ????????? |
| ??????????? | ???????????? | ????????????? ?????? |
| ??????? ???????? ??????? | ?????? ??????????? | ??????????????????? ?????????????? |
| ??????? ????? ??????? | 0.1 ?????????? ????? ???? ?????? ???? | ? ?????????? ?????????????? ?????????????????????. |
| ??????? ??????? (?????) | ???????, ???????? | ???????????? ?????? ??????????????? ?????????????????? |
????? ????: ????? ???? ?<|vq_image_6172|><|vq_image_14099|><|vq_image_8244|><|vq_image_2301|><|vq_image_2301|><|vq_image_652|><|vq_image_652|><|vq_image_652|><|vq_image_652|><|vq_image_2301|><|vq_image_2301|><|vq_image_2301|><|vq_image_8244|><|vq_image_8244|><|vq_image_8244|><|vq_image_11020|><|image_border_129|><|vq_image_5132|><|vq_image_2301|><|vq_image_2301|><|vq_image_652|><|vq_image_652|><|vq_image_652|><|vq_image_652|><|vq_image_7681|><|vq_image_10893|><|vq_image_4887|><|vq_image_12983|><|vq_image_7784|> rivals???? ??????????????? (0.1 ???? ??????) ???? ????????? ?????????? ????????????, ????????? ?????? ???????????????.
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. ?????? ????? ?????? ???????
???? ??????? ??????? ??????? ????????????? ??? ???? ?????? ??????? ????? ???? ??????????. ?????????? ?????? ????? ???????? ?????? ????? ?????????? ??????????????.
????????????? ????? (????? ????????)
????????? ????? ?????????? ??????? ??????? ??????? (???????? 75 ??????????????) ?????????????????????, ?????? ?????????? ???? ????????????? ?????????????. ???????? ????, energia-?????Ball mill ??? ??????????????. ????????????? ?????????????? ??????????? ???? ??????????? ???????????????????, ?????? ???? ????? ?????? ?????????? ???????????.
????? ?????? ????? ?????????
????? ???????, ???????? ??????? ????? ??????? ???? ?????? ???????????? ????????? ???????? ????? ?????? ?????? ??????? ??????????. ????????? ???????? ?????????? (collectors), ?????????? (depressants) ????? ??????????? (frothers) ???? ???????????????, ??????? ??????????? ??????? ??????? ?????? ??????????????????, ???????????? ??????? ??????????? ??????????????????. ????????????? ?????? ?????? ????? ??????? ??????????? ??????????? ???????????? ?????????????? ????? ????? ??????????, ?????????? ????? ???????????? ???????? ??????? ????? ????? ?????????? ?????????????.
7. ?????? ????? ????? ???? ????? ???????????????? ??????? ????????-????????? ?????????
?????? ???? ?????????????????, ????? ????????? ??????? ??????, ?????? ??????????? ??????????? ???? ?????? ???? ????? ??????????????. ?????? ????? ???? ???????? ??????????? ?????? ??????? ??????????? ????????? ???????? ????? ????????? ?????? ???????? ?????????.
???? ??? ???????? ???? "?????? ?????" ????? ??? ???? ??????? ????? ??????? ?????????? ????????????????????, ??????? ??????????? ????????? ????????? ??????? ????????? ???????? ??????? ??????????????????. ????????????, ???? ????? ?????? ??????????? ????????? ???? ???? ??????? ???????? ???????????, ???????? ?????????? ??????? ???.
????? ???????????:
- ?????? ??????????????: ???? ????? ??????????? ????? ?????????????? ???????? ?????????????? ???? ???? ???? ???? ??????????????. ??? ??????? ???? ?????? ????? ???? ?????? ???????? ??????????? (??????????? ????? ?????? ??????? 40–60% ?????).
- ?????????? ?????????: The remaining tailings—which now only contain the microscopic, hard-to-catch gold—are sent to the flotation cells.
??????????? ????, ?????? ???????????? ?????????????, ????? ????????? ??????? ???????? ?????????? ???????? ?????? ??????????????, ?????? ??????? ?????? ???????? ???????? ?????????? ?????????? ??????????, ????? ??????? ???????? ???????? ????????????????? ?????? ???? ????? ?????????????????.
??????? ?????? ????? ?????? ????????? ????? ?????? ??????? ??????????
Q1: ???????? ?????? ?????????????? ????? ??????????
A: Yes. Gravity separation typically has 2-4× lower capital and operating costs than flotation. No reagents, simpler equipment, and less energy consumption.
Q2: ????????? ??????? ?????? ??????????? ?????????????
?????: ???? ???? ????? (????) ????????? ??? ???????????????. ????????? 0.2–0.3 ?????????? ????? ???????? ?????????????? ????????? ??????????. ???? ???? ??????????? ???????? ??????? ???? ????????? ??????????? ???????.
Q3: ????????????? ?????? ????????? ????? ?????????????
?????: ??????? ????? ????????? ???? ??????? ????????? ??? ??????????????. ?????????? (gravity separation) 0.1 ???? ???? ????? ????????? ?????????????????????, ? ????????????? ????????? ????? ???????????????????.
Q4: ??? ??????? ????????? ?????? ???????
A: ????????? ???????????. ??? ?????? ???????? ???????????? ??????????? ????? ??????? ??????????? ?????????????. ???????????? ??????????? ???????????, ??? ???????? ??????? ??? ???? ??????? ?????????????.
????? ???? ???????? ?????? ?????????? ????? ?????? ????????? ????? ???? ????? ????????
?????? ????????? ????? ???????? ??????? ????? ????????????? ?????? '?????' ?????? ????? ????. ??? ??? ??????? ????? ???????? ????????? ???????????????? ?????????????.
?????????????? ?????? ????? ????? ????????????:
- ????? ?????? ????? ??????? ????? ???????? (?????, ????, ?????????, ????????)
- ??????????? ???? ????????????? (>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.
????? ???? ????????? ?????????? ????? ????? ???? ?????
?????????????, ???? ??????? ???? ????????? ???????????? ????????????,grav??? ????? ????????? ??????????????? ????????. ???? ???????????? ????? ???? ????????:
- ????? ???????? ?????? ????
- ????????? ????????? ?????????? ??????? ????
- ??????????????? ???????? ???????????? ??????? ????
- ?????? ????? ????? ??????????? ????????
???? ???????? ????????? ???? ???????? ?????????????
??????? ???????
????? ???????