CN218531334U - Flotation and heap leaching combined gold extraction system - Google Patents
Flotation and heap leaching combined gold extraction system Download PDFInfo
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- CN218531334U CN218531334U CN202222848131.8U CN202222848131U CN218531334U CN 218531334 U CN218531334 U CN 218531334U CN 202222848131 U CN202222848131 U CN 202222848131U CN 218531334 U CN218531334 U CN 218531334U
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- flotation
- extraction system
- heap leaching
- gold extraction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The utility model discloses a flotation and heap leaching combined gold extraction system, which comprises a flotation gold extraction system and a heap leaching gold extraction system; a spiral chute is arranged between a tailing discharge port of a flotation machine of the flotation gold extraction system and a tailing pond, and a gravity tailing discharge port of the spiral chute is communicated with the tailing pond; a gravity concentrate discharge hole of the spiral chute is communicated with a feed inlet of a gravity concentrate bin; and the discharge hole of the gravity concentrate bin is communicated with the feed inlet of a heap leaching crusher of the heap leaching gold extraction system. Has the advantages that: the part of minerals which cannot float upwards and have large specific gravity and are wrapped by limonite in the traditional flotation process are recovered in a heap leaching mode after gravity separation and enrichment through the spiral chute, so that the minerals are not discharged into a tailing pond, the effect of comprehensively utilizing resources is achieved, the grade of tailings is reduced as far as possible, and the mineral separation recovery rate is improved.
Description
The technical field is as follows:
the utility model relates to a mineral processing system especially relates to a gold system is jointly carried with heap leaching to flotation.
Background art:
gold exists in a single-preparation mode in nature, but generally exists in a compact symbiotic way with sulfide, light oxidized ore which is not oxidized or has the oxidation rate lower than 30% in a sulfide ore deposit is called sulfide ore, while oxidized ore with the oxidation rate higher than 30% is called oxidized ore, natural gold and sulfide ore belong to easily floating minerals and are easily collected by xanthate collectors, and gold is extracted by adopting a flotation process; the surface of gold particles in the oxidized ore is often polluted or covered by iron oxides, the floatability is poor, and the low-grade oxidized gold ore is recovered by adopting a heap leaching process.
The utility model has the following contents:
an object of the utility model is to provide an improve flotation and heap leaching of gold rate of recovery and jointly carry gold system.
The utility model discloses by following technical scheme implement: a flotation and heap leaching combined gold extraction system comprises a flotation gold extraction system and a heap leaching gold extraction system; a spiral chute is arranged between a tailing discharge port of a flotation machine of the flotation gold extraction system and a tailing pond, and a gravity tailing discharge port of the spiral chute is communicated with the tailing pond; a gravity concentrate discharge hole of the spiral chute is communicated with a feed inlet of a gravity concentrate bin; and a discharge hole of the gravity concentrate bin is communicated with a feed inlet of a heap leaching crusher of the heap leaching gold extraction system.
Preferably, the flotation gold extraction system comprises a flotation crusher, a vibrating screen, a ball mill, a classifier and the flotation machine which are sequentially connected, wherein a concentrate discharge port of the flotation machine is communicated with a concentrate pond, and a tailing discharge port of the flotation machine is communicated with the tailing pond.
Preferably, the heap leaching gold extraction system comprises a heap leaching crusher, a heap mine site, a rich liquor pool, a carbon adsorption device, a barren liquor pool and a spraying system.
Preferably, a mineral powder dryer is arranged at a feed inlet of the gravity concentrate bin.
The utility model has the advantages that: with can only pass through the foam come-up with the intergrowth metal of sulphide wherein, and those heavy minerals of oxidation do not have the sulphide as the carrier, most loss in the traditional flotation process in tailing storehouse compares, the utility model discloses a through the spiral chute with traditional flotation process in by this part of mineral that limonite parcel can't come-up and proportion is bigger than normal, through the mode of heap leaching with it retrieve after gravity concentration, and be unlikely to arrange into the tailing storehouse in order to reach the effect of resource comprehensive utilization, reduce the tailing grade as far as, improve the ore dressing rate of recovery.
Description of the drawings:
fig. 1 is an overall schematic view of embodiment 1.
Fig. 2 is an overall schematic view of embodiment 2.
The specific implementation mode is as follows:
example 1: as shown in figure 1, a flotation and heap leaching combined gold extraction system comprises a flotation gold extraction system 1 and a heap leaching gold extraction system 2; the flotation gold extraction system 1 comprises a flotation crusher 11, a vibrating screen 12, a ball mill 13, a grader 14 and a flotation machine 15 which are connected in sequence, wherein a concentrate discharge port of the flotation machine 15 is communicated with a concentrate pond 16, and a tailing discharge port of the flotation machine 15 is communicated with a tailing pond 17; the heap leaching gold extraction system 2 comprises a heap leaching crusher 21, a heap mine site 22, a rich liquor pool 23, a carbon adsorption device 24, a lean liquor pool 25 and a spraying system 26, wherein the heap leaching crusher 21 is connected with the heap mine site 22, the heap mine site 22 is communicated with the rich liquor pool 23, the rich liquor pool 23 is communicated with a liquid inlet of the carbon adsorption device 24, a liquid outlet of the carbon adsorption device 24 is communicated with the lean liquor pool 25, and a liquid inlet of a spraying pump in the spraying system 26 is communicated with the lean liquor pool 25; a spiral chute 3 is arranged between a tailing discharge port of a flotation machine 15 of the flotation gold extraction system and a tailing pond 17, and a gravity tailing discharge port of the spiral chute 3 is communicated with the tailing pond 17; a gravity concentrate discharge hole of the spiral chute 3 is communicated with a feed inlet of a gravity concentrate bin 4; the discharge hole of the gravity concentrate bin 4 is communicated with the feed inlet of a heap leaching crusher 21 of a heap leaching gold extraction system.
The working process comprises the following steps: and (3) reselecting and enriching tailings subjected to gold extraction by the flotation gold extraction system 1 through a spiral chute 3, naturally airing and drying the reselected tailings reselected and enriched by the spiral chute 3 in a reselected concentrate bin 4, crushing the reselected tailings and the raw materials of the heap leaching gold extraction system 2 uniformly, and performing heap leaching gold extraction.
Example 2: as shown in fig. 2, the gold extracting system combining flotation and heap leaching comprises a flotation gold extracting system 1 and a heap leaching gold extracting system 2; the whole structure of the gravity separation type ore concentrate drying device is the same as that of the embodiment 1, except that an ore powder drying machine 5 is arranged at a feeding hole of a gravity separation concentrate bin 4, and gravity separation tailings which are gravity separated and enriched through the spiral chute 3 are dried by the ore powder drying machine 5, so that the production period is shortened.
The working principle is as follows: because the floatability of the limonite formed by oxidizing the pyrite is poor, part of the wrapped gold can not be enriched and recovered through a flotation process, and the limonite with larger specific gravity is subjected to gravity concentration after gravity concentration through the spiral chute 3. The grade of the gold after enrichment reaches more than 0.8g/t, the yield of gravity concentrate reaches about 10%, the leaching rate of a laboratory for gravity concentrate heap leaching test reaches 50%, the recoverable metal amount of heavy sand heap leaching after gravity recovery is 0.8g/t 50% 10% =0.04g, and the beneficiation recovery rate can be improved by about 3% according to the calculation of the original ore gold grade of 1.2 g/t.
Claims (4)
1. A flotation and heap leaching combined gold extraction system comprises a flotation gold extraction system and a heap leaching gold extraction system; the method is characterized in that a spiral chute is arranged between a tailing discharge port of a flotation machine of the flotation gold extraction system and a tailing pond, and a gravity tailing discharge port of the spiral chute is communicated with the tailing pond; a gravity concentrate discharge hole of the spiral chute is communicated with a feed inlet of a gravity concentrate bin; and a discharge hole of the gravity concentrate bin is communicated with a feed inlet of a heap leaching crusher of the heap leaching gold extraction system.
2. The flotation and heap leaching combined gold extraction system according to claim 1, wherein the flotation gold extraction system comprises a flotation crusher, a vibrating screen, a ball mill, a classifier and the flotation machine which are connected in sequence, a concentrate discharge port of the flotation machine is communicated with a concentrate pond, and a tailing discharge port of the flotation machine is communicated with the tailing pond.
3. The flotation and heap leaching combined gold extraction system according to claim 1, wherein the heap leaching gold extraction system comprises a heap leaching crusher, a heap mine site, a pregnant solution tank, a carbon adsorption device, a barren solution tank and a spraying system.
4. The system of claim 1, wherein a mineral powder dryer is provided at the feed inlet of the gravity concentrate bin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222848131.8U CN218531334U (en) | 2022-10-25 | 2022-10-25 | Flotation and heap leaching combined gold extraction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222848131.8U CN218531334U (en) | 2022-10-25 | 2022-10-25 | Flotation and heap leaching combined gold extraction system |
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| CN218531334U true CN218531334U (en) | 2023-02-28 |
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| CN202222848131.8U Active CN218531334U (en) | 2022-10-25 | 2022-10-25 | Flotation and heap leaching combined gold extraction system |
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| CN (1) | CN218531334U (en) |
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2022
- 2022-10-25 CN CN202222848131.8U patent/CN218531334U/en active Active
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