CN220346139U - Ore dressing system for gold ore with gold-bearing mineral being fine-fraction pyrite - Google Patents
Ore dressing system for gold ore with gold-bearing mineral being fine-fraction pyrite Download PDFInfo
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- CN220346139U CN220346139U CN202321736451.2U CN202321736451U CN220346139U CN 220346139 U CN220346139 U CN 220346139U CN 202321736451 U CN202321736451 U CN 202321736451U CN 220346139 U CN220346139 U CN 220346139U
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- discharge port
- gold
- flotation machine
- port
- stirring barrel
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 239000010931 gold Substances 0.000 title claims abstract description 38
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 38
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 28
- 239000011707 mineral Substances 0.000 title claims abstract description 28
- 229910052683 pyrite Inorganic materials 0.000 title claims abstract description 22
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 title claims abstract description 22
- 239000011028 pyrite Substances 0.000 title claims abstract description 22
- 238000005188 flotation Methods 0.000 claims abstract description 83
- 230000002000 scavenging effect Effects 0.000 claims abstract description 42
- 239000002002 slurry Substances 0.000 claims abstract description 26
- 239000012141 concentrate Substances 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims description 41
- 239000002516 radical scavenger Substances 0.000 claims description 11
- 239000004576 sand Substances 0.000 claims description 6
- 238000005456 ore beneficiation Methods 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 7
- 238000000926 separation method Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 2
- 238000004513 sizing Methods 0.000 abstract 2
- 238000010494 dissociation reaction Methods 0.000 description 3
- 230000005593 dissociations Effects 0.000 description 3
- 239000000470 constituent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Classifications
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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
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model discloses a mineral separation system for gold ore with gold-bearing mineral as fine-fraction pyrite, wherein gold ore slurry with gold-bearing mineral as fine-fraction pyrite enters a roughing flotation machine, roughing concentrate is subjected to concentration, roughing tailings are classified by a classifying cyclone after pulp mixing, classified overflow is subjected to primary scavenging, and classified underflow is subjected to pulp mixing and regrinding by an vertical ball mill. The flotation tailings are subjected to sizing mixing and grading treatment, sizing mixing is carried out on grading underflow and grading underflow of the roughing tailings, then a vertical mill is used for regrinding treatment, and grading overflow is used as final tailings to be discharged. According to the utility model, through twice grading of the roughing tailings and the scavenging tailings, the separation efficiency of the coarse fraction minerals is improved, and more coarse fraction minerals enter a regrinding treatment process. The problem of insufficient ore grinding treatment of partial coarse fraction minerals is solved well, and the flotation recovery rate index is higher.
Description
Technical Field
The utility model relates to a mineral separation system which is mainly used for treating gold ore of which gold-bearing mineral is fine-grained pyrite, and aims to improve flotation recovery rate.
Background
Gold ore includes a variety of minerals, of which pyrite is a common constituent mineral. For gold ore with gold-bearing mineral mainly being pyrite, the target ore of flotation operation mainly is pyrite, so that the degree of dissociation of the pyrite monomer in the gold ore and whether the gold ore is ground to proper granularity are very important for subsequent flotation operation, and are important factors influencing the flotation recovery rate.
For gold ore with gold-bearing mineral being fine-fraction pyrite, the flotation recovery rate is improved as the prior art
The mineral separation system of the technology generally increases the dissociation degree of fine-fraction pyrite by increasing the grinding fineness. The main measure for improving the grinding fineness is to prolong the grinding time of raw ore or increase the number of grinding sections. By adopting the measures to realize fine grinding of the gold ore, the grinding cost is greatly increased, the degree of ore sliming is increased, the subsequent flotation index is deteriorated, and the flotation recovery rate of the gold ore is difficult to effectively improve.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a mineral separation system for gold ore with gold-bearing mineral being fine-fraction pyrite, which is used for treating gold ore with gold-bearing mineral being fine-fraction pyrite, improving the recovery rate of flotation gold and increasing the economic benefit of enterprises.
The technical scheme of the utility model is as follows:
a mineral separation system for gold ore with gold-bearing mineral as fine-fraction pyrite comprises a roughing flotation machine, a first grading cyclone and an vertical ball mill, wherein a floatation tailing discharge port of the roughing flotation machine is connected with a second stirring barrel; the discharge port of the second stirring barrel is connected with the feed port of the first classification cyclone through a slurry pump; a sand settling port of the first grading cyclone is connected with a first stirring barrel; the discharge port of the first stirring barrel is connected with the feed port of the vertical ball mill through a slurry pump; and the ore discharge port of the vertical ball mill is connected with the feed port of the second stirring barrel.
Preferably, the beneficiation system further comprises a primary scavenger flotation machine, a secondary scavenger flotation machine and a second classification cyclone; the overflow port of the first classification cyclone is connected with the feed port of the primary scavenging flotation machine; the tailing discharge port of the primary scavenging flotation machine is connected with the feed port of the secondary scavenging flotation machine; a flotation concentrate product discharge port of the primary scavenging flotation machine and a flotation concentrate product discharge port of the secondary scavenging flotation machine are respectively connected with a scavenging pump pool; a tailing discharge port of the secondary scavenging flotation machine is connected with a third stirring barrel; the discharge port of the third stirring barrel is connected with the feed port of the second classification cyclone through a slurry pump; the sand settling port of the second classification cyclone is connected with the feed inlet of the first stirring barrel; the scavenging pump pool is connected with the ore pulp feed inlet of the rougher flotation machine through a slurry pump.
Preferably, the positions of the flotation tailing discharge port of the rougher flotation machine and the ore discharge port of the vertical ball mill are higher than the positions of the feed port of the second stirring barrel.
Preferably, the positions of the flotation tailing discharge port of the rougher flotation machine, the tailing discharge port of the primary scavenger flotation machine and the tailing discharge port of the secondary scavenger flotation machine are sequentially reduced.
The utility model has the positive effects that:
aiming at gold ore with gold-bearing ore as fine-fraction pyrite, the utility model provides a stage grading grinding flotation treatment system, which is used for grading, regrinding and recleaning the roughing tailings and the scavenging tailings, and purposefully carrying out secondary dissociation on coarse-fraction gold-containing particles in the roughing tailings and the scavenging tailings, so that the fine-fraction pyrite can be dissociated and exposed in flotation ore pulp to the greatest extent, and enters flotation foam, and the loss rate of the fine-fraction pyrite is effectively reduced.
According to the utility model, through twice grading of the roughing tailings and the scavenging tailings, the separation efficiency of the coarse fraction minerals is improved, and more coarse fraction minerals enter a regrinding treatment process. The problem of insufficient ore grinding treatment of partial coarse fraction minerals is solved well, and the flotation recovery rate index is higher.
Drawings
Fig. 1 is a schematic diagram of the structure and operation principle of an embodiment of the present utility model.
In the figure, 1-1, a first classification cyclone, 1-2, a second classification cyclone, 2, an attritor mill, 3-1, a roughing flotation machine, 3-2, a primary scavenging flotation machine, 3-3, a secondary scavenging flotation machine, 4-1, a first stirring barrel, 4-2, a second stirring barrel, 4-3, a third stirring barrel, 5-1, a first slurry pump, 5-2, a second slurry pump, 5-3, a third slurry pump, 5-4, a fourth slurry pump, and 6, a sweeping and polishing pump pool.
Detailed Description
The utility model is further described below with reference to the drawings and examples.
Referring to fig. 1, an embodiment of the beneficiation system of the present utility model comprises a first classification cyclone 1-1, a second classification cyclone 1-2, an attritor 2, a roughing flotation machine 3-1, a primary scavenger flotation machine 3-2, a secondary scavenger flotation machine 3-3, a first stirring tank 4-1, a second stirring tank 4-2, a third stirring tank 4-3, a first slurry pump 5-1, a second slurry pump 5-2, a third slurry pump 5-3, a fourth slurry pump 5-4 and a scavenger pump tank 6.
The rougher flotation machine 3-1 is provided with an ore pulp feeding hole and a rougher concentrate discharging hole. The flotation tailing discharge port of the rougher flotation machine 3-1 is connected with the feed inlet of the second stirring barrel 4-2 through a pipeline. The discharge port of the second stirring barrel 4-2 is connected with the feed port of the second slurry pump 5-2 through a pipeline, and the discharge port of the second slurry pump 5-2 is connected with the feed port of the first classification cyclone 1-1 through a pipeline. The sand settling port of the first classification cyclone 1-1 is connected with the feed inlet of the first stirring barrel 4-1 through a pipeline. The discharge port of the first stirring barrel 4-1 is connected with the feed port of the first slurry pump 5-1 through a pipeline, the discharge port of the first slurry pump 5-1 is connected with the feed port of the vertical ball mill 2 through a pipeline, and the ore discharge port of the vertical ball mill 2 is connected with the feed port of the second stirring barrel 4-2 through a pipeline.
The overflow port of the first grading cyclone 1-1 is connected with the feed port of the primary scavenging flotation machine 3-2 through a pipeline, and the tailing discharge port of the primary scavenging flotation machine 3-2 is connected with the feed port of the secondary scavenging flotation machine 3-3 through a pipeline. The flotation concentrate product discharge port of the primary scavenging flotation machine 3-2 and the flotation concentrate product discharge port of the secondary scavenging flotation machine 3-3 are respectively connected with the scavenging pump pool 6 through pipelines. The tailing discharge port of the secondary scavenging flotation machine 3-3 is connected with the feed inlet of the third stirring barrel 4-3 through a pipeline, the discharge port of the third stirring barrel 4-3 is connected with the feed inlet of the third slurry pump 5-3 through a pipeline, and the discharge port of the third slurry pump 5-3 is connected with the feed inlet of the second classification cyclone 1-2 through a pipeline. The sand settling port of the second classification cyclone 1-2 is connected with the feed port of the first stirring barrel 4-1 through a pipeline, and the second classification cyclone 1-2 is provided with an overflow port. The scavenging pump pool 6 is connected with a feed inlet of a fourth slurry pump 5-4 through a pipeline, and a discharge outlet of the fourth slurry pump 5-4 is connected with a slurry feed inlet of the rougher flotation machine 3-1 through a pipeline.
Further, in order to realize self-flow of ore pulp, the positions of a flotation tailing discharge port of the rougher flotation machine 3-1 and a discharge port of the vertical ball mill 2 are higher than the positions of a feed port of the second stirring barrel 4-2.
Further, in order to reduce the ore pulp conveying power, the positions of the flotation tailing discharge port of the rougher flotation machine 3-1, the tailing discharge port of the primary scavenger flotation machine 3-2 and the tailing discharge port of the secondary scavenger flotation machine 3-3 are sequentially reduced.
The workflow of the present utility model is illustrated below in conjunction with fig. 1.
The gold-carrying mineral is gold ore of fine-grained pyrite, and is prepared into raw ore pulp after grinding and grading to proper fineness. The raw ore pulp enters a rougher flotation machine 3-1 for roughing, rougher concentrate is subjected to concentration removing operation, and rougher tailings automatically flow into a second stirring barrel 4-2. After the pulp is mixed in the second stirring barrel 4-2, the pulp is pumped into the first classification cyclone 1-1 by the second pulp pump 5-2 for classification. The classified underflow automatically flows into a first stirring barrel 4-1, pulp is stirred in the first stirring barrel 4-1, and then pulp is pumped into an attritor 2 by a first pulp pump 5-1 to be subjected to regrinding treatment. And the ore pulp automatically flows into a second stirring barrel 4-2 for classification treatment after regrinding, so that a roughing tailing classification ore grinding closed circuit system is formed.
The first grading cyclone 1-1 grading overflow automatically flows into the primary scavenging flotation machine 3-2 for scavenging treatment. The tailings of the primary scavenging flotation machine 3-2 automatically flow into the secondary scavenging flotation machine 3-3, the tailings of the secondary scavenging flotation machine 3-3 automatically flow into the third stirring barrel 4-3, after pulp is mixed in the third stirring barrel 4-3, pulp is pumped into the second classification cyclone 1-2 by the third pulp pump 5-3 for classification, classification underflow and classification underflow of the first classification cyclone 1-1 enter the first stirring barrel 4-1 together, regrinding treatment is carried out subsequently, and classification overflow is discharged as final tailings. The scavenging concentrates of the primary scavenging flotation machine 3-2 and the secondary scavenging flotation machine 3-3 flow into the scavenging pump pool 6 automatically, and then are pumped into the roughing flotation machine 3-1 through the fourth slurry pump 5-4 for flotation treatment again.
Claims (4)
1. The utility model provides a carry gold ore beneficiation system that gold mineral is fine fraction pyrite, it includes roughing flotation machine (3-1), first classifying cyclone (1-1) and vertical ball mill (2), its characterized in that: a floatation tailing discharge port of the rougher floatation machine (3-1) is connected with a second stirring barrel (4-2); the discharge port of the second stirring barrel (4-2) is connected with the feed port of the first grading cyclone (1-1) through a slurry pump; the sand settling port of the first grading cyclone (1-1) is connected with a first stirring barrel (4-1); the discharge port of the first stirring barrel (4-1) is connected with the feed port of the vertical ball mill (2) through a slurry pump; the ore discharge port of the vertical ball mill (2) is connected with the feed port of the second stirring barrel (4-2).
2. The beneficiation system for gold ore in which the gold-bearing mineral is fine-grade pyrite according to claim 1, wherein: the beneficiation system further comprises a primary scavenging flotation machine (3-2), a secondary scavenging flotation machine (3-3) and a second classification cyclone (1-2); the overflow port of the first grading cyclone (1-1) is connected with the feed port of the primary scavenging flotation machine (3-2); the tailing discharge port of the primary scavenging flotation machine (3-2) is connected with the feed port of the secondary scavenging flotation machine (3-3); a flotation concentrate product discharge port of the primary scavenging flotation machine (3-2) and a flotation concentrate product discharge port of the secondary scavenging flotation machine (3-3) are respectively connected with a scavenging pump pool (6); a tailing discharge port of the secondary scavenging flotation machine (3-3) is connected with a third stirring barrel (4-3); the discharge port of the third stirring barrel (4-3) is connected with the feed port of the second classification cyclone (1-2) through a slurry pump; the sand settling port of the second classification cyclone (1-2) is connected with the feed inlet of the first stirring barrel (4-1); the scavenging pump pool (6) is connected with a pulp feeding port of the rougher flotation machine (3-1) through a pulp pump.
3. The beneficiation system for gold ore in which the gold-bearing mineral is fine-grade pyrite according to claim 1, wherein: the positions of a floatation tailing discharge port of the roughing floatation machine (3-1) and a discharge port of the vertical ball mill (2) are higher than the position of a feed port of the second stirring barrel (4-2).
4. The beneficiation system for gold ore in which the gold-bearing mineral is fine-grade pyrite according to claim 1, wherein: the positions of a flotation tailing discharge port of the rougher flotation machine (3-1), a tailing discharge port of the primary scavenger flotation machine (3-2) and a tailing discharge port of the secondary scavenger flotation machine (3-3) are sequentially reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321736451.2U CN220346139U (en) | 2023-07-04 | 2023-07-04 | Ore dressing system for gold ore with gold-bearing mineral being fine-fraction pyrite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321736451.2U CN220346139U (en) | 2023-07-04 | 2023-07-04 | Ore dressing system for gold ore with gold-bearing mineral being fine-fraction pyrite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220346139U true CN220346139U (en) | 2024-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321736451.2U Active CN220346139U (en) | 2023-07-04 | 2023-07-04 | Ore dressing system for gold ore with gold-bearing mineral being fine-fraction pyrite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220346139U (en) |
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2023
- 2023-07-04 CN CN202321736451.2U patent/CN220346139U/en active Active
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