CN218654893U - Gold ore gravity separation system - Google Patents
Gold ore gravity separation system Download PDFInfo
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- CN218654893U CN218654893U CN202222876802.1U CN202222876802U CN218654893U CN 218654893 U CN218654893 U CN 218654893U CN 202222876802 U CN202222876802 U CN 202222876802U CN 218654893 U CN218654893 U CN 218654893U
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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
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Abstract
The utility model belongs to the technical field of gold ore dressing and discloses a gold ore gravity separation system, which comprises a vibrating feeder, a belt conveyor, a ball mill, a high-frequency fine screen, a first-stage Nielsen ore separator, a hydraulic cyclone and a second-stage Nielsen ore separator; wherein, the vibrating feeder is connected with the ball mill through a belt conveyor; the feeding end of the high-frequency fine screen is connected with the ball mill, and the undersize is connected with a Nielsen concentrator; the feeding port of the hydrocyclone is connected with the ore discharge port of the first-stage Nielsen concentrator, and the overflow port of the hydrocyclone is connected with the ore feeding port of the second-stage Nielsen concentrator; the sand settling port of the hydrocyclone is connected with a ball mill. The utility model discloses process flow is simple, and ore grinding, gravity separation equipment all are mine production conventional equipment, replace two sections very big reduction equipment investment expenses of ore grinding with one section ore grinding, have reduced the shared area of two sections ore grinding of ore grinding workshop tradition of selection factory simultaneously, have saved capital construction investment expense, are applicable to middle-size and small-size gold mine system.
Description
Technical Field
The utility model belongs to the technical field of the gold mine ore dressing, in particular to gold mine gravity concentration system.
Background
The gold belongs to precious metals, the production scale of mine construction is small, the traditional gold ore separation method mainly comprises single separation processes such as flotation, leaching and gravity separation (gravity separation) or combined separation processes, the current application is mostly gravity separation, and the gold ore separation method has the characteristics of no environmental pollution, wide potential application range and the like.
The working principle of reselection is as follows: under the condition of the same particle size, sorting is carried out due to the specific gravity difference of the gold-bearing ore and the waste rock. Therefore, in the actual production process, the narrower the size fraction is, the higher the sorting precision is, and on the contrary, if the size fraction range is large, the better sorting effect is difficult to achieve under the condition of centrifugal force determination in the sorting process. At present, a gold ore reselection process is mature, for example, the invention patent with the publication number of CN108380381A discloses a quartz-vein-type pure gold ore reselection device and a method, the invention adopts a linear vibrating screen to carry out primary classification, a Nielsen concentrator with the granularity less than or equal to 1.7mm is used for reselection, the screening efficiency is low, the control grain size cannot be too fine, a shaking table is used for scavenging, the gold ore reselection device is suitable for inlaying gold ores with fine granularity, and the gold ore reselection device cannot achieve precise classification for coarse grains of bare gold and semi-bare gold, so that the recovery rate of the gold ore is low.
Therefore, the existing gold ore reselection system still has room for improvement and perfection, and based on this, there is an urgent need in the art to improve the gold ore reselection system so as to solve the problem that the gold ore reselection system cannot achieve accurate separation, which results in low gold ore recovery rate.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gold mine gravity concentration system mainly solves the gold mine gravity concentration system and can not reach accurate selection and do not, leads to the lower problem of gold mine rate of recovery.
The utility model provides a technical scheme that its technical problem adopted is:
a gold ore gravity separation system comprises a vibrating feeder, a belt conveyor, a ball mill, a high-frequency fine screen, a first-stage Nielsen concentrator, a hydrocyclone and a second-stage Nielsen concentrator;
wherein the vibrating feeder is connected with the ball mill through a belt conveyor;
the feeding end of the high-frequency fine screen is connected with the ball mill, and the undersize is connected with a Nielsen concentrator;
the feeding port of the hydrocyclone is connected with the ore discharge port of the first-stage Nielsen concentrator, and the overflow port of the hydrocyclone is connected with the ore feeding port of the second-stage Nielsen concentrator; the sand settling port of the hydraulic cyclone is connected with the ball mill.
The utility model provides an equipment is current equipment, specifically in the course of the work, wherein, vibrating feeder sets up under the powder ore storehouse, vibrating feeder unloading to belt conveyor, and send to the ball mill through belt conveyor and carry out one section ore grinding, the mill product gets into the high frequency fine screen and carries out the classification operation, the material returns to the ball mill and reground on the screen, the material gets into one section nielsen concentrator under the screen and reselects and retrieve gold, reselect the back concentrate and be the aurin concentrate, reselect the back tailing and get into hydrocyclone classification, hydrocyclone heavy sand flows automatically to the ball mill and reground, hydrocyclone overflow two-stage nielsen concentrator carries out the second grade and reselects, the second grade reselects the concentrate and merges into the aurin concentrate with one section gravity concentrate.
The utility model discloses a centrifugal force of one section nielsen concentrator is great in the system, can retrieve coarse grain gold as early as possible, and the fine fraction ore that carries out ore grinding back through hydrocyclone overflow reaches accurate other effect under the effect of the less centrifugal force of two-stage nielsen concentrator, and gold mine rate of recovery is high.
Further, a slurry pump I is arranged between the ball mill and the high-frequency fine screen; a slurry pump II is arranged between the high-frequency fine screen and the Nielsen concentrator; a slurry pump III is arranged between the first-stage Nielsen concentrator and the hydrocyclone; a slurry pump IV is arranged between the hydrocyclone and the Nielsen concentrator.
Further, the system also comprises a gold concentrate bin and a tailing pond, wherein the first-stage Nielsen concentrator and the second-stage Nielsen concentrator are connected with the gold concentrate bin and the tailing pond.
Further, the mesh size of the high-frequency fine sieve is 0.5mm.
Further, the ball mill is a lattice type ball mill.
Further, still include the powder ore storehouse, the discharge gate in powder ore storehouse links to each other with the vibrating feeder.
The beneficial effects of the utility model reside in that:
1. the utility model discloses an in the system, one section nielsen concentrator centrifugal force is great, can retrieve coarse grain gold as early as possible, and the fine fraction ore through hydrocyclone overflow after grinding down reaches accurate other effect of selecting under the effect of the less centrifugal force of two-stage nielsen concentrator, and gold ore recovery rate is high.
2. The utility model discloses from the angle of design energy-conservation, use a mill to grind the ore, carry out the classification with the cooperation of high frequency fine screen and hydrocyclone to divide two sections nielsen ore separators of different size grades to reselect "thick" and "thin" two kinds of different size grades, improve gold ore resource recovery rate, reduce the ore grinding energy consumption, improve the gold concentrate recovery rate of middle-size and small-size mine greatly, thereby improve the mine enterprise benefit; just the utility model discloses according to the size fraction difference, can receive the gold mine just early receipts, avoid the phenomenon such as cross grinding, argillization, further improve the rate of recovery of gold mine.
3. The system of the utility model has the advantages of simple structure, good grading effect, capital investment saving, ore grinding energy consumption reduction, convenient equipment maintenance and the like, well solves the problem that the prior art is particularly suitable for small and medium-sized enterprises aiming at the gold ore grinding and selecting process; just the utility model discloses process flow is simple, and ore grinding, gravity equipment all are mine production conventional equipment, replace two sections very big reduction equipment investment expenses of ore grinding with one section ore grinding, have reduced the shared area of two sections ore grinding of mill ore grinding workshop tradition of selection simultaneously, have saved capital construction investment expense.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work according to the drawings:
fig. 1 is a schematic diagram of the connection relationship of the devices of the present invention.
Fig. 2 is a process flow diagram of the present invention.
In the figure: 1. a vibratory feeder; 2. a belt conveyor; 3. a ball mill; 4. high-frequency fine screening; 5. a Nielsen concentrator; 6. a hydrocyclone; 7. a second-stage nielsen concentrator; 8. a slurry pump I; 9. a slurry pump II; 10. a slurry pump III; 11. a slurry pump IV; 12. a gold concentrate bin; 13. a tailings pond; 14. and (4) a fine ore bin.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following description will be made clearly and completely in conjunction with the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the gold ore gravity separation system comprises a vibrating feeder 1, a belt conveyor 2, a ball mill 3, a high-frequency fine screen 4, a first-stage nielsen concentrator 5, a hydrocyclone 6 and a second-stage nielsen concentrator 7;
wherein, the vibrating feeder 1 is connected with the ball mill 3 through the belt conveyor 2;
the feeding end of the high-frequency fine screen 4 is connected with the ball mill 3, and the undersize is connected with a Nielsen concentrator 5;
a feeding port of the hydrocyclone 6 is connected with a mine discharge port of the first-stage Nielsen concentrator 5, and an overflow port of the hydrocyclone 6 is connected with a mine feeding port of the second-stage Nielsen concentrator 7; the sand settling port of the hydrocyclone 6 is connected with the ball mill 3.
The utility model provides an equipment is current equipment, specifically in the course of the work, wherein, vibrating feeder 1 sets up in the export of powder ore storehouse 14, ore after the breakage exists temporarily in powder ore storehouse 14, through vibrating feeder 1 unloading to belt conveyor 2, and send to ball mill 3 through belt conveyor 2 and carry out one section ball-milling, the mill product gets into high frequency fine screen 4 and carries out the classification operation, the material returns to ball mill 3 and reground on sieving, the undersize material gets into one section nielsen concentrator 5 and reselects and retrieve the gold, reselect the back concentrate and be the aurin concentrate, reselect back tailing and get into 6 grades of hydrocyclone, 6 heavy sands of hydrocyclone gravity flow to ball mill 3 and regrind, 6 overflow two-stage nielsen concentrator 7 of hydrocyclone reselect and carry out the second stage, the two stage section reselects concentrate and merges with one section reselects the concentrate and be the aurin concentrate. The utility model discloses a system simple structure easily realizes, grinds the ore deposit and reselects the conventional equipment of equipment in all being the mine production, just the utility model discloses a one section ore deposit that grinds replaces two sections extremely big reductions equipment investment expenses of ore deposit, has reduced the shared area of two sections ore deposits of mill ore deposit workshop tradition of selecting simultaneously, has saved capital construction investment expense, is fit for being applied to middle-size and small-size gold mine. The centrifugal force of the first-stage Nielsen concentrator 5 in the system is large, coarse-grained gold can be recycled as early as possible, fine-grained ore overflowing through the hydrocyclone 6 after grinding achieves the effect of precise separation under the action of the small centrifugal force of the second-stage Nielsen concentrator 7, and the gold ore recovery rate is high. Therefore, adopt the utility model discloses a system equipment is few, and the investment is less relatively, and gold concentrate rate of recovery is high. In the above process, the tailings of the primary and secondary nielsen separators 5, 7 are floated or otherwise passed into a tailings pond 13.
The utility model discloses in, each equipment is existing equipment, and specific model as follows: a vibrating feeder 1: XZG84 table, belt conveyor 2: b =800, ball mill 3: MQG3245, high-frequency fine sieve 4: DGS-4, a nielsen concentrator 5: KC-QS40, hydrocyclone 6: FX500 × 4, two-stage nielsen concentrator 7: KC-QS40.
Further, a slurry pump I8 is arranged between the ball mill 3 and the high-frequency fine screen 4; a slurry pump II 9 is arranged between the high-frequency fine screen 4 and the Nielsen concentrator 5; a slurry pump III 10 is arranged between the first-stage Nielsen concentrator 5 and the hydrocyclone 6; a slurry pump IV 11 is arranged between the hydrocyclone 6 and the Nielsen concentrator 5.
The slurry pump mainly used is used for conveying a mixture of solid particles containing dregs and water, the main working components of the slurry pump are an impeller and a casing, and an impeller device in the casing is positioned on a shaft and is connected with a prime motor to form a whole. The specific working process is as follows: when the prime mover rotates the impeller, the blades in the impeller force the fluid to rotate, i.e., the blades apply work to the fluid in its direction of motion, thereby forcing the fluid to increase in pressure potential energy and kinetic energy. Meanwhile, the fluid flows from the center to the edge of the impeller under the action of inertia force, flows out of the impeller at a high speed, enters the extrusion chamber and is discharged through the diffusion pipe, and the process is called a water pressing process. Meanwhile, since the fluid in the center of the impeller flows to the edge, a low pressure region is formed in the center of the impeller, and when it has a sufficient vacuum, the fluid enters the impeller through the suction chamber under the action of the atmospheric pressure at the suction end, which is called a water suction process. Due to the continuous rotation of the impeller, the fluid is continuously discharged and sucked, and continuous work is formed. In an embodiment of the utility model, the sediment stuff pump I8, the sediment stuff pump II 9, the sediment stuff pump III 10 and the sediment stuff pump IV 11 are current frequency conversion sediment stuff pump, and specific model is 100ZBD-400.
In this embodiment, the specific connection relationship of each device is as follows:
the vibrating feeder 1 is connected with a lattice type ball mill 3 through a belt conveyor 2;
the lattice type ball mill 3 is connected with the high-frequency fine screen 4 through a slurry pump I8 and a conveyor in sequence, wherein the conveyor is a feeding belt conveyor of the type of the ball mill 3;
the screen of the high-frequency fine screen 4 is connected with an ore feeding belt conveyor of the ball mill 3, and the screen hopper of the high-frequency fine screen 4 is connected with a slurry pump II 9;
the slurry pump II 9 is connected with a feeding port of the first-stage Nielsen concentrator 5, and a tailing discharge port of the first-stage Nielsen concentrator 5 is connected with a feeding port of the hydrocyclone 6 through a slurry pump III 10;
the sand settling port of the hydraulic cyclone 6 is connected with the lattice type ball mill 3, and the overflow port of the hydraulic cyclone 6 is connected with the feeding port of a two-stage Nielsen concentrator 7 through a slurry pump IV 11.
In the actual working process, powder ore in a gold ore dressing plant is fed to a belt conveyor 2 from a vibrating feeder 1 of a powder ore bin 14 and is sent to a lattice type ball mill 3 through the belt conveyor 2 for primary ball milling, a mill product enters a pump pool and is sent to a high-frequency fine screen 4 through a slurry pump I8 for classification operation, oversize materials are returned to the lattice type ball mill 3 for regrinding, undersize materials enter the pump pool and are fed into a primary Nielsen dressing machine 5 through a slurry pump II 9 for gravity separation and recovery of gold, concentrate after gravity separation is gold concentrate, tailings enter the pump pool and are fed into a hydrocyclone 6 through a slurry pump III 10, settled sand automatically flows to the lattice type ball mill 3 for regrinding, the overflow of the hydrocyclone enters the pump pool and is fed into a secondary Nielson dressing machine 7 through a slurry pump IV 11 for secondary gravity separation, the concentrate discharge ports of the primary Nielson dressing machine 5 and the secondary Nielson dressing machine 7 are combined into gold concentrate, and the tailings of the primary Nielson dressing machine 5 and the secondary Nielson dressing machine 7 are subjected to secondary flotation or enter a tailing bin 13.
Further, a gold concentrate bin 12 and a tailings pond 13 are included, wherein the primary nielsen concentrator 5 and the secondary nielsen concentrator 7 are connected to the gold concentrate bin 12 and the tailings pond 13.
The purpose of the concentrate bin 12 and tailings pond 13 is to facilitate the collection of the different materials that are removed by the first and second nielsen separators 5, 7.
Further, the mesh size of the high-frequency fine sieve 4 is 0.5mm.
The high-frequency fine screen 4 with the screening size of 0.5mm can pump the material with the granularity less than or equal to 0.5mm to a Nielsen concentrator of a section of gravity equipment. In one embodiment of the invention, the hydrocyclone 6 delivers a slurry overflow containing 60% of the-200 mesh fraction to a two-stage nielsen concentrator for scavenging. The utility model discloses carry out the classification with the cooperation of high frequency fine screen 4 and hydrocyclone 6 to it carries out two sections nielsen concentrator reselections of different size grades to divide two kinds of different size grades of "thick", "thin", improves gold ore resource recovery rate, reduces the ore grinding energy consumption, improves the gold concentrate rate of recovery of middle-size and small-size mine greatly, thereby improves mine performance of enterprises. A process flow of the present invention is specifically shown in fig. 2.
Further, the ball mill 3 is a lattice type ball mill 3.
The effect of lattice type ball mill 3 is mainly to grind the material, just the utility model provides a ball mill 3 is the equipment in the existing design, and 3 models of lattice type ball mill are MQG3245. The lattice type ball mill 3 has excellent performance, can fully grind materials, the ground materials can reach 300 meshes, the materials can be fully ground, the granularity of the materials can be adjusted, the ball mill has the advantages of small power consumption, low consumption and energy conservation in operation, continuous and uninterrupted production can be realized, and the working efficiency is greatly improved.
Further, the powder ore feeding device also comprises a powder ore bin 14, and the output end of the powder ore bin 14 is connected with the vibrating feeder 1. The powder ore bin 14 mainly plays a storage role, and in the actual production process, the crushed ore temporarily exists in the powder ore bin 14, and is fed to the belt conveyor 2 through the vibrating feeder 1 when the feeding is needed, and then the next processing work is carried out according to the flow of the system.
The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above description is only for the specific implementation method of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements and improvements made within the spirit of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A gold ore gravity separation system is characterized by comprising a vibrating feeder (1), a belt conveyor (2), a ball mill (3), a high-frequency fine screen (4), a first-stage Nielsen concentrator (5), a hydrocyclone (6) and a second-stage Nielsen concentrator (7);
wherein the vibrating feeder (1) is connected with the ball mill (3) through a belt conveyor (2);
the feeding end of the high-frequency fine sieve (4) is connected with the ball mill (3), and the sieve bottom is connected with a Nielsen concentrator (5);
the feeding port of the hydrocyclone (6) is connected with the ore discharge port of the first-stage Nielsen concentrator (5), and the overflow port of the hydrocyclone (6) is connected with the ore feeding port of the second-stage Nielsen concentrator (7); the sand settling port of the hydrocyclone (6) is connected with the ball mill (3).
2. The gold ore gravity separation system according to claim 1, characterized in that a slurry pump I (8) is arranged between the ball mill (3) and the high-frequency fine screen (4); a slurry pump II (9) is arranged between the high-frequency fine screen (4) and the Nielsen concentrator (5); a slurry pump III (10) is arranged between the first-stage Nielsen concentrator (5) and the hydrocyclone (6); a slurry pump IV (11) is arranged between the hydrocyclone (6) and the Nielsen concentrator (5).
3. A gold reselection system according to claim 1 or 2 further comprising a gold concentrate bin (12) and a tailings pond (13), wherein the first and second nielsen separators (5, 7) are each connected to the gold concentrate bin (12) and the tailings pond (13).
4. A gold ore reselection system according to claim 1 or 2, characterized in that the mesh size of the high-frequency fine screen (4) is 0.5mm.
5. A gold ore gravity separation system according to claim 3, characterized in that the screening size of the high frequency fine screen (4) is 0.5mm.
6. A gold ore gravity separation system according to claim 1, 2 or 5, characterized in that the ball mill (3) is a lattice type ball mill (3).
7. A gold ore gravity separation system according to claim 3, characterized in that the ball mill (3) is a lattice type ball mill (3).
8. The gold ore gravity separation system according to claim 4, characterized in that the ball mill (3) is a lattice type ball mill (3).
9. A gold ore gravity separation system according to claim 1, 2, 5, 7 or 8, characterized by further comprising a fine ore bin (14), the output end of the fine ore bin (14) being connected to the vibratory feeder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222876802.1U CN218654893U (en) | 2022-10-31 | 2022-10-31 | Gold ore gravity separation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222876802.1U CN218654893U (en) | 2022-10-31 | 2022-10-31 | Gold ore gravity separation system |
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| CN218654893U true CN218654893U (en) | 2023-03-21 |
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| CN202222876802.1U Active CN218654893U (en) | 2022-10-31 | 2022-10-31 | Gold ore gravity separation system |
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