CN219003347U - Gold mine cyclone sand setting comprehensive utilization process system - Google Patents
Gold mine cyclone sand setting comprehensive utilization process system Download PDFInfo
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- CN219003347U CN219003347U CN202320085076.3U CN202320085076U CN219003347U CN 219003347 U CN219003347 U CN 219003347U CN 202320085076 U CN202320085076 U CN 202320085076U CN 219003347 U CN219003347 U CN 219003347U
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- cyclone
- screen
- tailing
- ball mill
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
Abstract
The utility model discloses a gold mine cyclone sand setting comprehensive utilization process system, wherein a ball mill is sequentially connected with a cylinder screen and a section of cyclone. The first section of cyclone is respectively connected with the ball mill and the pre-screening vibrating screen, and the pre-screening vibrating screen is respectively connected with the ball mill and the flash flotation machine. The flash flotation machine is sequentially connected with a linear vibrating screen and a two-stage cyclone, the two-stage cyclone is connected with a thickener, and a sand settling port is connected with a ball mill. The linear vibrating screen is also sequentially connected with a heavy medium stirring tank and a heavy medium cyclone. The bottom flow port of the heavy medium cyclone is sequentially connected with a concentrate medium removing sieve and a concentrate cleaning sieve. The overflow port of the heavy medium cyclone is sequentially connected with a tailing vibrating screen and a tailing cleaning screen. The concentrate medium removing sieve and the tailing vibrating sieve are connected with a heavy medium stirring tank. The concentrate cleaning sieve and the tailing cleaning sieve are connected with the magnetic separator. The magnetic separator is respectively connected with the thickener and the heavy medium stirring tank. The comprehensive utilization of the cyclone sand setting is realized by the process of combining flash flotation and heavy medium separation.
Description
Technical Field
The utility model relates to a gold mine cyclone sand setting comprehensive utilization process system.
Background
The grinding classification closed circuit of most gold mine factories in China adopts the equipment combination of a ball mill and a cyclone, and by combining flash flotation with dense medium separation, the comprehensive utilization of the cyclone sand setting is realized, the overgrinding problem in the grinding classification closed circuit grinding process is solved while the advanced waste throwing and tailing reduction are realized, and the mineral dressing processing capacity and the comprehensive recovery rate of ore resources are improved.
As an intermediate product of a ball mill and a cyclone ore grinding and classifying system in the gold mine cyclone sand setting comprehensive utilization process system in the prior art, the cyclone sand setting is directly returned to an ore feeding end of the ball mill for regrinding. There are few mines in which a flash flotation process is added at the cyclone sand setting position, but because the concentration of the cyclone sand setting ore pulp (more than 70 percent) and the concentration of the flash flotation proper flotation ore pulp (60-65 percent) have large differences, water balance can be affected, and both advanced tailing discarding and overgrinding are difficult to realize.
In the gold mine cyclone sand setting process system as the prior art, the heavy medium separation process uses the product before ore grinding as the raw material for separation, and no data is mentioned for developing the heavy medium separation process aiming at cyclone sand setting.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the gold mine cyclone sand setting comprehensive utilization process system is characterized in that the cyclone sand setting comprehensive utilization is realized through a process combining flash flotation and heavy medium separation; and solves the overgrinding problem of the ore grinding grading system and the imbalance problem of the system water system.
The technical scheme of the utility model is as follows:
the utility model provides a gold mine swirler sand setting comprehensive utilization process system, includes ball mill, cylinder screen, one section swirler, flash flotation machine, two sections swirler, thickener, dense medium stirred tank, dense medium swirler and magnet separator, its characterized in that: the ore discharging end of the ball mill is connected with a cylindrical screen, a discharge port of the cylindrical screen is connected with a section of cyclone through a pump box and a pump, a sand setting port of the section of cyclone is connected with an ore feeding end of the ball mill, the sand setting port is also connected with a pre-screening vibrating screen, a product discharge end on the screen of the pre-screening vibrating screen is connected with the ball mill, a product outlet under the screen is connected with a flash flotation machine, a tailing discharge port of the flash flotation machine is connected with a linear vibrating screen, a product discharge end under the screen of the linear vibrating screen is connected with a second section of cyclone through a pump box and a pump, an overflow end of the second section of cyclone is connected with a thickener, and a sand setting port of the second section of cyclone is connected with the ball mill; the discharge end of the oversize product of the linear vibrating screen is connected with a heavy medium stirring tank; the heavy medium stirring tank is connected with the heavy medium cyclone through a pump and a pipeline; the bottom flow port of the heavy medium cyclone is connected with a concentrate medium removing sieve, the discharge port of the concentrate medium removing sieve is connected with a concentrate cleaning sieve, and the discharge port of the concentrate cleaning sieve is connected with a ball mill; the overflow port of the heavy medium cyclone is connected with a tailing vibrating screen, and the discharge port of the tailing vibrating screen is connected with a tailing cleaning screen; the product discharge ports under the concentrate medium removing sieve and the tailing vibrating sieve are respectively connected with a heavy medium stirring tank; the undersize product discharge ports of the concentrate cleaning sieve and the tailing cleaning sieve are respectively connected with the magnetic separator; the magnetic separation tailing discharge outlet of the magnetic separator is connected with the thickener through a pump box and a pump, and the magnetic separation concentrate discharge end of the magnetic separator is connected with the heavy medium stirring tank.
Preferably, the gold mine cyclone sand setting comprehensive utilization process system further comprises a conveying belt for conveying products on the screen of the cylinder screen to the ore feeding end of the ball mill.
Preferably, the gold mine cyclone sand setting comprehensive utilization process system further comprises a pipeline for conveying overflow products of the first-stage cyclone to the main flotation operation system.
Preferably, the overflow end of the thickener is connected with a circulating water pipeline.
Preferably, the gold mine cyclone sand setting comprehensive utilization process system further comprises a pipeline for conveying the underflow product of the thickener to a main flotation operation system.
The utility model has the positive effects that:
according to the utility model, the cyclone sand setting of the ore grinding classification closed circuit system is subjected to particle size classification by fully utilizing the good dissociation effect of pyrite and gold minerals in the cyclone sand setting, the close embedding relationship of the pyrite and the gold minerals, the specific gravity difference between pyrite and gangue minerals, the easy floating property of pyrite and the like, and the treatment processes of ores with different particle sizes are reasonably designed by means of combining closed circuit screening, dense medium separation and flash flotation, so that the effects of coarse-particle cyclone sand setting return grinding, fine-particle cyclone sand setting tailing discarding, pre-enrichment and the like are realized. The system not only can realize the high-efficiency separation between main useful minerals and gangue minerals in gold mines and obviously reduce the amount of ores entering a flotation process and save the cost, but also can float out the useful minerals of monomer dissociation in a grinding classification closed circuit in advance, thereby avoiding the influence of overgrinding on Au recovery rate caused by continuous cyclic accumulation of the minerals in the cyclone classification process due to great specific gravity.
The utility model adopts the organic combination of the two-stage cyclone and the thickener to realize the material balance and water balance, and solves the problem of unbalance of the system water caused by factors such as flash flotation concentration, heavy medium separation and slurry mixing, screening flushing water and the like.
Drawings
Fig. 1 is a schematic overall structure of an embodiment of the present utility model.
In the figure, 1, a ball mill, 2, a cylindrical screen, 3, a first pump box, 4, a first pump, 5, a first-stage cyclone, 6, a pre-screening vibrating screen, 7, a flash flotation machine, 8, a linear vibrating screen, 9, a second pump box, 10, a second pump, 11, a second-stage cyclone, 12, a thickener, 13, a heavy medium stirring tank, 14, a third pump, 15, a heavy medium cyclone, 16, a concentrate medium removing screen, 17, a concentrate cleaning screen, 18, a tailing vibrating screen, 19, a tailing cleaning screen, 20, a magnetic separator, 21, a third pump box, 22 and a fourth pump.
Detailed Description
The utility model is further described below with reference to the drawings and the detailed description.
Referring to fig. 1, the embodiment of the utility model relates to a gold mine cyclone sand setting comprehensive utilization process system, which comprises a ball mill 1, a cylindrical screen 2, a first pump box 3, a first pump 4, a first-stage cyclone 5, a pre-screening vibrating screen 6, a flash flotation machine 7, a linear vibrating screen 8, a second pump box 9, a second pump 10, a second-stage cyclone 11, a thickener 12, a heavy medium stirring tank 13, a third pump 14, a heavy medium cyclone 15, a concentrate removing screen 16, a concentrate cleaning screen 17, a tailing vibrating screen 18, a tailing cleaning screen 19, a magnetic separator 20, a third pump box 21 and a fourth pump 22.
The ore discharging end of the ball mill 1 is connected with the ore feeding end of the cylindrical screen 2, the feeding port of the first pump box 3 is arranged below the discharging port of the cylindrical screen 2, the discharging end of the first pump box 3 is connected with the feeding end of the first pump 4 through a pipeline, and the discharging end of the first pump 4 is connected with the feeding end of the first section of cyclone 5 through a pipeline. The sand setting port of the first-stage cyclone 5 is respectively connected with the ore feeding end of the ball mill 1 and the ore feeding end of the pre-screening vibrating screen 6 through pipelines. The discharge end of the product on the screen of the pre-screening vibrating screen 6 is connected with the ore feeding end of the ball mill 1 through a pipeline, the product outlet under the screen of the pre-screening vibrating screen 6 is connected with the feed end of the flash flotation machine 7 through a pipeline, and the feed port of the linear vibrating screen 8 is arranged below the tailing discharge port of the flash flotation machine 7. The undersize product discharge end of the linear vibrating screen 8 is connected with the feeding end of the second pump box 9 through a pipeline, the discharging end of the second pump box 9 is connected with the feeding end of the second pump 10 through a pipeline, and the discharging end of the second pump 10 is connected with the feeding end of the second-stage cyclone 11 through a pipeline. The overflow end of the second-stage cyclone 11 is connected with the feeding end of the thickener 12 through a pipeline, and the sand settling port of the second-stage cyclone 11 is connected with the ore feeding end of the ball mill 1 through a pipeline.
The discharge end of the product on the screen of the linear vibrating screen 8 is connected with the feeding end of the heavy medium stirring tank 13 through a pipeline, the discharge end of the heavy medium stirring tank 13 is connected with the feeding end of the third pump 14 through a pipeline, and the discharge end of the third pump 14 is connected with the feeding end of the heavy medium cyclone 15 through a pipeline. The feed inlet of concentrate demercuration screen 16 sets up in heavy medium swirler 15 underflow mouth below, and the feed inlet of concentrate cleaning screen 17 sets up in concentrate demercuration screen 16's bin outlet below, and concentrate cleaning screen 17 bin outlet passes through the feed end of pipeline connection ball mill 1. The feed port of the tailing vibrating screen 18 is arranged below the overflow port of the heavy medium cyclone 15, and the feed port of the tailing cleaning screen 19 is arranged below the discharge port of the tailing vibrating screen 18. The undersize product discharge outlet of the concentrate removing medium screen 16 and the undersize product discharge outlet of the tailing vibrating screen 18 are respectively connected with the feeding end of the heavy medium stirring tank 13 through pipelines. The undersize product discharge ports of the concentrate cleaning screen 17 and the tailings cleaning screen 19 are connected to the feed end of the magnetic separator 20 through pipes, respectively. The magnetic concentrate discharge end of the magnetic separator 20 is connected with the feeding end of the heavy medium stirring tank 13 through a pipeline. The feed inlet of the third pump box 21 is positioned below the magnetic separation tailing discharge outlet of the magnetic separator 20, the discharge end of the third pump box 21 is connected with the feed end of the fourth pump 22 through a pipeline, and the discharge end of the fourth pump 22 is connected with the feed end of the thickener 12 through a pipeline.
Further, the present embodiment further comprises a conveyor belt for conveying the oversize product of the cylindrical screen 2 to the feed end of the ball mill 1, which conveyor belt is omitted from fig. 1.
Further, the present embodiment also comprises a conduit for conveying overflow products of the length of cyclone 5 to the main flotation operation system.
Further, a circulating water pipeline is connected to the overflow end of the thickener 12.
Further, the present embodiment also includes a conduit for delivering the underflow product of the thickener 12 to the primary flotation process system.
The necessary control valves of the system are of conventional design and omitted in this embodiment.
The following is a specific working process example of an embodiment of the gold mine cyclone sand setting comprehensive utilization process system.
Grinding raw ore by a ball mill 1, feeding the raw ore into a cylindrical screen 2 for screening, returning products on the screen of the cylindrical screen 2 to the ball mill 1 for regrinding, and returning the products by the following mode: either by conveyor belts or by manual transport. The product under the screen of the cylinder screen 2 automatically flows to the first pump box 3, and is conveyed to the first-stage cyclone 5 for classification through the first pump 4. The overflow of the first-stage cyclone 5 enters the main flotation operation through a pipeline, 70-80% of the settled sand of the first-stage cyclone 5 flows back to the ore feeding end of the ball mill 1 through the pipeline, the settled sand of the rest 20-30% (different in flow-dividing proportion according to different circulating loads) of the cyclone flows back to the pre-screening vibrating screen 6 (with 5mm of sieve pore size) through the pipeline, the product on the screen of the pre-screening vibrating screen 6 flows back to the ore feeding end of the ball mill 1 through the pipeline, the product under the screen of the pre-screening vibrating screen 6 enters the flash flotation machine 7, the flash flotation concentrate can be sold as the product, the flash flotation tailings flows back to the linear vibrating screen 8 (with 0.5mm of sieve pore size), the product under the screen of the linear vibrating screen 8 flows back to the second pump box 9, and then is conveyed to the second-stage cyclone 11 through the second pump 10 for classification. The two-stage cyclone 11 overflows in stages and enters a thickener 12, and the classified sand setting returns to the ore feeding end of the ball mill 1. The products on the screen of the linear vibrating screen 8 enter a heavy medium stirring tank 13 to carry out heavy medium sorting operation.
The heavy medium (ferrosilicon powder) is evenly mixed with the products on the screen of the linear vibrating screen 8 in a heavy medium stirring tank 13 through a feed bin and a screw feeder (the feed bin and the screw feeder are omitted in fig. 1), and is sent into a heavy medium cyclone 15 through a third pump 14 to carry out heavy medium separation, so that heavy medium separation concentrate and heavy medium separation tailings are respectively produced.
The heavy medium separated concentrate is discharged from the underflow of the heavy medium cyclone 15, is screened and demetallized by the concentrate demetallizing screen 16 and is cleaned by the concentrate cleaning screen 17 in sequence, and is fed into the ball mill 1 by a belt.
The heavy medium separation tailings are discharged from the overflow end of the heavy medium cyclone 15, are screened and medium removed by a tailings vibrating screen 18 in sequence, and are cleaned by a tailings cleaning screen 19 to be thrown out as final tailings.
The undersize product of the concentrate dewatering screen 16 and the undersize product of the tailing vibrating screen 18 are returned to the heavy medium stirring tank 13. The undersize products of the concentrate cleaning sieve 17 and the tailing cleaning sieve 19 enter magnetic separation operation, the magnetic separation concentrate flows into a heavy medium stirring tank 13 for recycling, and the magnetic separation tailings automatically flow to a third pump box 21 and are conveyed to the thickener 12 through a fourth pump 22.
The overflow of the thickener 12 is used as circulating water of the system, and the underflow of the thickener 12 enters the main flotation operation.
Claims (5)
1. The utility model provides a gold mine swirler sand setting comprehensive utilization process system, includes ball mill (1), cylinder screen (2), one section swirler (5), flash flotation machine (7), two sections swirler (11), thickener (12), dense medium stirred tank (13), dense medium swirler (15) and magnet separator (20), its characterized in that: the ore discharging end of the ball mill (1) is connected with the cylindrical screen (2), the material discharging end of the cylindrical screen (2) is connected with a section of cyclone (5) through a pump box and a pump, the sand setting opening of the section of cyclone (5) is connected with the ore feeding end of the ball mill (1), the sand setting opening is also connected with a pre-screening vibrating screen (6), the on-screen product discharging end of the pre-screening vibrating screen (6) is connected with the ball mill (1), the under-screen product outlet is connected with a flash flotation machine (7), the tailing discharging outlet of the flash flotation machine (7) is connected with a linear vibrating screen (8), the under-screen product discharging end of the linear vibrating screen (8) is connected with a second section of cyclone (11) through the pump box and the pump, the overflow end of the second section of cyclone (11) is connected with a thickener (12), and the sand setting opening of the second section of cyclone (11) is connected with the ball mill (1); the discharge end of the oversize product of the linear vibrating screen (8) is connected with a heavy medium stirring tank (13); the heavy medium stirring tank (13) is connected with the heavy medium cyclone (15) through a pump and a pipeline; a bottom flow port of the heavy medium cyclone (15) is connected with a concentrate removing screen (16), a discharge port of the concentrate removing screen (16) is connected with a concentrate cleaning screen (17), and a discharge port of the concentrate cleaning screen (17) is connected with the ball mill (1); the overflow port of the heavy medium cyclone (15) is connected with a tailing vibrating screen (18), and the discharge port of the tailing vibrating screen (18) is connected with a tailing cleaning screen (19); the discharge ports of the undersize products of the concentrate medium removing sieve (16) and the tailing vibrating sieve (18) are respectively connected with a heavy medium stirring tank (13); the undersize product discharge ports of the concentrate cleaning sieve (17) and the tailing cleaning sieve (19) are respectively connected with a magnetic separator (20); the magnetic separation tailing discharge outlet of the magnetic separator (20) is connected with the thickener (12) through a pump box and a pump, and the magnetic separation concentrate discharge end of the magnetic separator (20) is connected with the heavy medium stirring tank (13).
2. The gold mine cyclone sand setting comprehensive utilization process system as claimed in claim 1, further comprising a conveying belt for conveying the oversize products of the cylindrical screen (2) to the ore feeding end of the ball mill (1).
3. A gold mine cyclone sand setting integrated utilization process system as claimed in claim 1, further comprising a pipeline for conveying overflow products of a stage of cyclone (5) to the main flotation operation system.
4. The gold mine cyclone sand setting comprehensive utilization process system according to claim 1, wherein an overflow end of the thickener (12) is connected with a circulating water pipeline.
5. A gold mine cyclone grit composite utilization process system according to claim 1, characterized in that it further comprises a conduit for conveying the underflow product of said thickener (12) to a main flotation operation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320085076.3U CN219003347U (en) | 2023-01-29 | 2023-01-29 | Gold mine cyclone sand setting comprehensive utilization process system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320085076.3U CN219003347U (en) | 2023-01-29 | 2023-01-29 | Gold mine cyclone sand setting comprehensive utilization process system |
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| CN219003347U true CN219003347U (en) | 2023-05-12 |
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| CN202320085076.3U Active CN219003347U (en) | 2023-01-29 | 2023-01-29 | Gold mine cyclone sand setting comprehensive utilization process system |
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- 2023-01-29 CN CN202320085076.3U patent/CN219003347U/en active Active
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