CN116764800A - Tailing treatment system, tailing treatment method and ore treatment system - Google Patents
Tailing treatment system, tailing treatment method and ore treatment system Download PDFInfo
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- CN116764800A CN116764800A CN202310655128.0A CN202310655128A CN116764800A CN 116764800 A CN116764800 A CN 116764800A CN 202310655128 A CN202310655128 A CN 202310655128A CN 116764800 A CN116764800 A CN 116764800A
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- 238000000034 method Methods 0.000 title claims description 17
- 239000004576 sand Substances 0.000 claims abstract description 115
- 238000012545 processing Methods 0.000 claims abstract description 22
- 239000006148 magnetic separator Substances 0.000 claims description 23
- 239000002002 slurry Substances 0.000 claims description 20
- 239000002699 waste material Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 17
- 238000007885 magnetic separation Methods 0.000 claims description 17
- 239000012141 concentrate Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 26
- 238000003672 processing method Methods 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 description 13
- 238000005065 mining Methods 0.000 description 9
- 239000002562 thickening agent Substances 0.000 description 9
- 239000004575 stone Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 238000005086 pumping Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000010878 waste rock Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/30—Combinations with other devices, not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The application discloses a tailing processing system, a tailing processing method and an ore processing system, wherein the tailing processing system comprises a tailing concentrator, a first line, a second line, a third line and a fourth line for conveying tailings; the first circuit and the second circuit are arranged in parallel between a coarse tailings source and a feed inlet of the tailings concentrator, and the third circuit and the fourth circuit are arranged in parallel between a discharge outlet of the tailings concentrator and an underground filling system; a first valve is arranged on the first circuit; a second valve and a first sand dredger are arranged on the second line; a third valve and a second sand dredger are arranged on the third line; and a fourth valve is arranged on the fourth line. According to the technical scheme, the tailings produced by the concentrating mill are stably regulated and controlled along with the change of the properties of the extracted ores and the demand of filling the tailings in the pit, so that the tailings are matched, and the production balance of the extracting and selecting is ensured.
Description
Technical Field
The present application relates toMineral engineering mineral separationThe technical field especially relates to a tailing processing system, a tailing processing method and an ore processing system, in particular to a balancing method for filling quantity of mountain tailings and tailing production quantity in underground mining.
Background
The surface ecology is damaged by the mining operation in the mining industry; meanwhile, a large amount of tailings can be generated in mine beneficiation operation, and the tailings are generally treated in a mode of piling up a tailings pond. But the stockpiling of the tailing pond can cause great influence on the ecological environment and has great potential safety hazard. With the development of society, the requirements of people on environmental protection are more stringent. Because of this, newly built mines generally adopt underground mining mode, and the tailings that the ore dressing produces are processed by adopting the underground filling mode, do not build the tailing pond, reduce the influence to the environment.
However, due to different properties of underground ores and large differences of the ore properties in different areas, the amount of the tailings after dressing greatly fluctuates along with the property change of the ores in production, and the amount of the tailings required for filling is relatively fixed, which often causes mismatch between the required amount of tailings filling and the generated amount of the tailings. When the production amount of tailings is large, the tailings are subjected to floor discharge, so that the environment is polluted; when the production amount of tailings is small, the required tailings amount for filling is insufficient, and the underground mine room cannot complete filling in time, so that normal mining of mining operation can be influenced, and mine production is restricted.
Disclosure of Invention
The present application has been made in view of the above problems, and has as its object to provide a tailings treatment system, a method and an ore treatment system which overcome or at least partially solve the above problems, and which can stabilize the amount of tailings produced by beneficiation, balance the tailings filling amount and the tailings production amount with the change in the properties of the mined ore and the demand for filling tailings.
In a first aspect, there is provided a tailings treatment system comprising: comprising the following steps: the tailings concentrator comprises a tailings concentrator, a first line, a second line, a third line and a fourth line for conveying tailings;
the first circuit and the second circuit are arranged in parallel between a coarse tailings source and a feed inlet of the tailings concentrator, and the third circuit and the fourth circuit are arranged in parallel between a discharge outlet of the tailings concentrator and an underground filling system;
a first valve is arranged on the first circuit;
a second valve and a first sand dredger are arranged on the second line;
a third valve and a second sand dredger are arranged on the third line;
and a fourth valve is arranged on the fourth line.
Optionally, the tailings concentrating machine further comprises a fifth line, wherein the fifth line is arranged between the magnetic separation tailings source and the feed inlet of the tailings concentrating machine.
Optionally, the sand dredger further comprises a first slurry pump, wherein the first slurry pump is arranged on the third line and is positioned between the second valve and a feed inlet of the first sand dredger.
Optionally, the sand dredger further comprises a second slurry pump, wherein the second slurry pump is arranged on the third line and is positioned between the third valve and a feed inlet of the second sand dredger.
Optionally, the first sand dredger is a coarse sand dredger, and the second sand dredger is a fine sand dredger.
Optionally, the downhole filling system is provided with a level gauge.
In a second aspect, a method of tailings treatment using the tailings treatment system of the first aspect, comprising:
when the tailings amount is smaller than the filling demand amount, closing the second valve and the third valve, opening the first valve and the fourth valve, and sending the concentrated tailings obtained by the tailings concentrator to the underground filling system through the fourth line for tailings filling;
when the tailings amount is larger than the filling demand amount, closing the first valve and the third valve, opening the second valve and the fourth valve, sending the coarse tailings to the first sand dredger to scoop building sand, sending the obtained tailings to the tailings concentrator for concentration, and then sending the tailings to the underground filling system for tailings filling through the fourth line;
or when the tailing amount is larger than the filling demand amount, opening the first valve and the third valve, closing the second valve and the fourth valve, sending the concentrated tailings to the second sand dredger to scoop building sand, and sending the obtained tailings to the underground filling system through the fourth line for tailing filling;
or when the tailings amount is larger than the filling demand amount, closing the first valve and the fourth valve, opening the second valve and the third valve, sending coarse tailings into the first sand dredger to scoop building sand once, sending the obtained tailings into the tailings concentrator to concentrate, and then sending the obtained tailings into the second sand dredger to scoop building sand twice, and sending the obtained tailings into the underground filling system to fill tailings.
Optionally, the method further comprises: and judging the size relation between the tailing amount and the filling demand amount through the liquid level amount of the underground filling system.
In a third aspect, an ore processing system is provided, which comprises a dry separator, a first magnetic separator and a tailing processing system, wherein a discharge port of the dry separator is connected with a feed port of the first magnetic separator; the waste outlet of the first magnetic separator forms a coarse tailings source;
the tailing treatment system comprises a tailing concentrator, a first line, a second line, a third line and a fourth line for conveying tailings; the first circuit and the second circuit are arranged in parallel between the coarse tailings source and the feed inlet of the tailings concentrator, and the third circuit and the fourth circuit are arranged in parallel between the discharge outlet of the tailings concentrator and the underground filling system; a first valve is arranged on the first circuit; a second valve and a first sand dredger are arranged on the second line; a third valve and a second sand dredger are arranged on the third line; and a fourth valve is arranged on the fourth line.
Optionally, the device also comprises a ball mill, a cyclone and a second magnetic separator; the feed inlet of the ball mill is connected with the screening material outlet of the first magnetic separator; the feeding pipe of the cyclone is connected with the discharge port of the ball mill, and the bottom flow pipe of the cyclone is connected with the feed port of the ball mill; the feed inlet of the second magnetic separator is connected with the flash pipe of the cyclone, the waste outlet of the second magnetic separator forms a magnetic separation tailing source, and a fifth line is arranged between the magnetic separation tailing source and the feed inlet of the tailing concentrator.
The technical scheme provided by the embodiment of the application has at least the following technical effects or advantages:
according to the tailings treatment system, the tailings treatment method and the ore treatment system provided by the embodiment of the application, the tailings concentrator is matched with the first circuit, the second circuit, the third circuit and the fourth circuit, so that the tailings produced by the concentrating mill are stably regulated and controlled along with the change of the properties of the extracted ores and the requirement of the underground tailings filling, the tailings produced by the concentrating mill are matched, the production balance of the extraction is ensured, the whole underground tailings filling is finally realized, a tailings warehouse is not required to be built, the tailings are not discharged, and the environment-friendly requirement is met.
The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 is a schematic diagram of a tailings treatment system in accordance with an embodiment of the present application;
FIG. 2 is a flow chart of a tailings treatment process in accordance with an embodiment of the present application;
FIG. 3 is a schematic diagram of a mineral processing system in accordance with an embodiment of the present application;
fig. 4 is a schematic diagram of a mineral processing system according to an embodiment of the application.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.
Various structural schematic diagrams according to embodiments of the present disclosure are shown in the drawings. The figures are not drawn to scale, wherein certain details are exaggerated for clarity of presentation and may have been omitted. The shapes of the various regions, layers and relative sizes, positional relationships between them shown in the drawings are merely exemplary, may in practice deviate due to manufacturing tolerances or technical limitations, and one skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions as actually required.
In order to better understand the above technical solutions, the following detailed description will be made with reference to specific embodiments, and it should be understood that the embodiments of the present disclosure and specific features in the embodiments are detailed descriptions of the technical solutions of the present disclosure, and not limiting the technical solutions of the present disclosure, and the technical features in the embodiments and embodiments of the present disclosure may be combined with each other without conflict.
The application provides a tailing processing system, please refer to fig. 1, fig. 1 is a schematic diagram of the tailing processing system in the embodiment of the application, which includes: the tailings concentrator comprises a tailings concentrator, a first line, a second line, a third line and a fourth line for conveying tailings;
the first circuit and the second circuit are arranged in parallel between a coarse tailings source and a feed inlet of the tailings concentrator, and the third circuit and the fourth circuit are arranged in parallel between a discharge outlet of the tailings concentrator and an underground filling system;
a first valve is arranged on the first circuit;
a second valve and a first sand dredger are arranged on the second line;
a third valve and a second sand dredger are arranged on the third line;
and a fourth valve is arranged on the fourth line.
Based on the same inventive concept, the embodiment of the application also provides a tailing processing method, as shown in fig. 2, fig. 2 is a flow chart of the tailing processing method in the embodiment of the application, which comprises the following steps:
when the tailings amount is smaller than the filling demand amount, closing the second valve and the third valve, opening the first valve and the fourth valve, and sending the concentrated tailings obtained by the tailings concentrator to the underground filling system through the fourth line for tailings filling;
when the tailings amount is larger than the filling demand amount, closing the first valve and the third valve, opening the second valve and the fourth valve, sending the coarse tailings to the first sand dredger to scoop building sand, sending the obtained tailings to the tailings concentrator for concentration, and then sending the tailings to the underground filling system for tailings filling through the fourth line;
or when the tailing amount is larger than the filling demand amount, opening the first valve and the third valve, closing the second valve and the fourth valve, sending the concentrated tailings to the second sand dredger to scoop building sand, and sending the obtained tailings to the underground filling system through the fourth line for tailing filling;
or when the tailings amount is larger than the filling demand amount, closing the first valve and the fourth valve, opening the second valve and the third valve, sending coarse tailings into the first sand dredger to scoop building sand once, sending the obtained tailings into the tailings concentrator to concentrate, and then sending the obtained tailings into the second sand dredger to scoop building sand twice, and sending the obtained tailings into the underground filling system to fill tailings. When the tailing amount is larger than the filling demand amount, the first sand dredger and the second sand dredger are selected to be used preferentially, and if the tailing amount is found to be still larger than the filling demand amount after sand dredger, the first sand dredger and the second sand dredger are selected to be used simultaneously, so that the sand dredger is increased, and the tailing amount is reduced.
As an alternative embodiment, the tailings treatment system further comprises a fifth line disposed between the magnetic tailings source and the feed inlet of the tailings concentrator. The raw ore is crushed, dry separated, high-pressure roller ground and pre-magnetically separated to obtain waste material, and the waste material obtained after pre-magnetic separation is ground, classified and magnetically separated to obtain coarse-grained tailings source magnetic separation tailings source. The coarse grain tailings source has large tailings particles, so that the first sand dredger can adopt the coarse sand dredger, when coarse sand dredged by the coarse sand dredger is used as building sand, the use is wide, the income is high, when the tailings amount is larger than the filling demand amount, the coarse sand dredger is preferably selected to be used for first dredging coarse sand, the coarse sand dredger is large in dredged amount, the tailings amount is reduced to a great extent, and if the coarse sand dredged by the coarse sand dredger is too large, the second sand dredger is started at the same time. The second sand dredger can adopt the fine sand dredger, and the fine sand dredger can be used for dredging the fine sand as the building sand, and the application is less wide than that of the coarse sand, but the second sand dredger still has certain application requirements and benefits. After the tailings are treated by the sand dredger, the tailings amount of the tailings filling by the underground filling system is reduced, so that the production balance of the mining and separation is ensured, and finally, the whole underground filling of the tailings is realized, a tailings reservoir is not required to be built, and the tailings are not discharged.
As an optional implementation manner, the tailings treatment system further comprises a first slurry pump, wherein the first slurry pump is arranged on the third line and is positioned between the second valve and the feed inlet of the first sand dredger, and the first slurry pump guides the ore liquid of the coarse tailings into the first sand dredger. Likewise, the tailing treatment system further comprises a second slurry pump, wherein the second slurry pump is arranged on the third line and is positioned between the third valve and the feed inlet of the second sand dredger. And the second slurry pump is used for guiding the tailing liquid concentrated by the tailing thickener into the second sand dredger.
As an alternative implementation mode, a liquid level meter is arranged in the underground filling system, and the size relation between the tailing amount and the filling demand amount is judged through the liquid level amount of the underground filling system. Specifically, a liquid level meter is arranged at the point positions of a deep cone thickener and the like of the underground tailing filling system, and the tailing amount generated by ore dressing is reflected to be larger than or smaller than the filling demand amount according to liquid level data acquired by the liquid level meter.
The tailing processing system and method of this embodiment will be described in detail with reference to the following examples, and magnetite is taken as an example for explanation:
in order to balance the filling amount of the mountain tailings in the ground mining and the production amount of tailings, the raw magnetite ores are subjected to crushing, dry separation, high-pressure roller grinding, pre-magnetic separation, ore grinding, classification and separation to respectively obtain large-granularity dry separation waste stones, coarse tailings, magnetic separation concentrate and magnetic separation tailings, wherein the large-granularity dry separation waste stones are fed into a waste stone bin for further deep processing, the coarse tailings are fed into a building sand and sand-pumping integrated machine through a slurry pump to scoop building sand, the residual tailings after the coarse tailings are scooped into the building sand and the magnetic separation tailings are combined and then fed into a tailings concentrator, the concentrated underflow pump is fed into a dry sand-discharging and sand-pumping integrated machine to scoop dry sand discharge, and the residual tailings after the dry sand discharge are scooped into a downhole tailings filling system.
The coarse tailing slurry pump is connected with a building sand bailing integrated machine, and is also provided with a pipeline and a valve, so that coarse tailings can be directly fed into a tailings concentrating machine without the bailing integrated machine;
the concentrated underflow pump is connected with the dry sand discharging and sand dragging integrated machine, and is also provided with a pipeline and a valve, so that concentrated tailings can be directly fed into the underground tailings filling system without the sand dragging integrated machine.
During normal production, coarse tailings and magnetic tailings are all fed into a tailings concentrator, and after concentration, tailings are fed into an underground filling system through an underflow pump of the concentrator.
When the tailings production amount of the concentrating mill is smaller than the underground tailings filling amount of the stope, the operation parameters of the dry separator are adjusted, the production amount of dry separation waste stones is reduced, part of waste stone products enter the subsequent flow, the production amounts of coarse tailings and magnetic tailings are increased, and the defects of the filling tailings amount are overcome.
When the production amount of tailings in a concentrating mill is larger than the filling amount of tailings in a stope, coarse tailings are pumped to a building sand and sand bailing integrated machine through slurry pump, building sand is bailed for sale, and part of tailings are reduced; when the yield of the residual tailings is still larger than the filling amount of the tailings in the pit after the building sand is fished, the tailings concentration underflow (namely, the tailings obtained by combining the residual tailings after the building sand is fished by coarse tailings and the tailings obtained by combining the magnetic tailings) is sent into a dry sand discharge and bailing integrated machine, the dry sand discharge is fished for sale, and part of the tailings are reduced again.
Meanwhile, when small fluctuation occurs between the tailing generation amount of the ore selection factory and the underground tailing filling amount, the sand-bailing yield of the building sand-bailing integrated machine and the dry sand-discharging sand-bailing integrated machine can be increased or reduced by adjusting the operating frequency, the ore pulp concentration and other parameters of the slag pulp pump and the thickener underflow pump, so that the balance between the ore dressing production tailing amount and the underground tailing filling demand amount is achieved.
Based on the same inventive concept, the embodiment of the application also provides an ore processing system, as shown in fig. 3, fig. 3 is a schematic diagram of the ore processing system in the embodiment of the application, including a dry separator, a first magnetic separator and a tailing processing system, wherein a discharge port of the dry separator is connected with a feed port of the first magnetic separator; the waste outlet of the first magnetic separator forms a coarse tailings source;
the tailing treatment system comprises a tailing concentrator, a first line, a second line, a third line and a fourth line for conveying tailings; the first circuit and the second circuit are arranged in parallel between the coarse tailings source and the feed inlet of the tailings concentrator, and the third circuit and the fourth circuit are arranged in parallel between the discharge outlet of the tailings concentrator and the underground filling system; a first valve is arranged on the first circuit; a second valve and a first sand dredger are arranged on the second line; a third valve and a second sand dredger are arranged on the third line; and a fourth valve is arranged on the fourth line.
Specifically, the ore processing system further comprises a ball mill, a cyclone, and a second magnetic separator; the feed inlet of the ball mill is connected with the screening material outlet of the first magnetic separator; the feeding pipe of the cyclone is connected with the discharge port of the ball mill, and the bottom flow pipe of the cyclone is connected with the feed port of the ball mill; the feed inlet of the second magnetic separator is connected with the flash pipe of the cyclone, the waste outlet of the second magnetic separator forms a magnetic separation tailing source, and a fifth line is arranged between the magnetic separation tailing source and the feed inlet of the tailing concentrator.
The ore processing system of this embodiment is described in detail below with reference to the example, as shown in fig. 4, fig. 4 is a schematic diagram of a second ore processing system in the embodiment of the present application, and the balancing method of the filling amount of tailings in the underground mining of the present application includes crushing, grinding, classifying and sorting of magnetite raw ore by a crusher 1, a dry separator 2, a high-pressure roller mill 3, a pre-selection magnetic separator 4, a ball mill 5, a cyclone 6 and a magnetic separator 7, respectively obtaining dry separation waste stone, coarse tailings, magnetic separation concentrate and magnetic separation tailings, wherein the dry separation waste stone is fed into a waste stone bin for sale, the coarse tailings and the magnetic separation tailings are combined and then fed into a tailings concentrator 11, and the tailings concentrator 11 is fed into the underground tailings filling system by a thickener underflow pump 8-2.
The coarse tailings are connected to a tailings concentrator 11 and a slurry pump 8-1 through pipelines, valves 12-1 and 12-2 are respectively arranged on the pipelines in two directions, the trend of the coarse tailings is controlled through the valves, and the slurry pump 8-1 is connected to a building sand and sand-pumping integrated machine 9 and is used for pumping building sand from the coarse tailings. The bottom flow pump of the thickener is connected to the underground filling system and the dry sand discharge and bailing integrated machine 10 through pipelines, valves 13-1 and 13-2 are respectively arranged on the pipelines in two directions, the bottom flow trend of the thickener is controlled through the valves, and the dry sand discharge and bailing integrated machine is used for bailing dry sand discharge from summarized tailings.
During normal production, valves 12-1 and 13-2 are opened, valves 12-2 and 13-1 are closed, coarse tailings and magnetic tailings are all fed into a tailings concentrator 11, and tailings are fed into a downhole filling system through a thickener underflow pump 8-2 after concentration.
When the tailings production amount of the concentrating mill is smaller than the underground tailings filling amount of the stope, the operation parameters of the dry separator 2 are adjusted, the production amount of dry separation waste rocks is reduced, part of waste rocks products enter the subsequent process, the production amounts of coarse tailings and magnetic tailings are increased, and the defects of the filling tailings amount are overcome.
When the production amount of tailings in a dressing plant is larger than the filling amount of tailings in a stope, closing a valve 12-1, opening a valve 12-2, and conveying coarse tailings to a building sand and sand-bailing integrated machine 9 through a slurry pump 8-1, bailing building sand for sale, and reducing part of tailings; when the yield of the residual tailings is still larger than the filling amount of the tailings in the pit after the building sand is fished, closing the valve 13-2, opening the valve 13-1, and sending the tailings concentrating underflow (i.e. the tailings after the coarse tailings are fished for the building sand and the tailings after the magnetic tailings are combined) into the dry sand discharge and bailing integrated machine 10, bailing the dry sand discharge for sale, and reducing part of the tailings again.
In order to effectively control and regulate the tailings amount in mineral dressing production, the application adopts the following measures:
and installing liquid level meters at the same point positions of a deep cone thickener of the underground tailing filling system, and reflecting whether the tailing amount generated by mineral separation is larger or smaller than the filling demand amount according to liquid level data acquired by the liquid level meters.
When the liquid level change amplitude is large, the large fluctuation between the tailing yield of the concentrating mill and the underground tailing filling amount is shown.
If the liquid level rises, the tailing filling amount requirement is smaller than the tailing generation amount of the concentrating mill, and the tailing generation amount of the concentrating mill needs to be reduced. At the moment, the belt rotating speed and the distributing plate parameters of the dry separator 2 are firstly considered and adjusted, the yield of waste rock in dry separation is increased, and the production of tailings is reduced; secondly, considering that the valve 12-1 is closed, the valve 12-2 is opened, coarse tailings are sent to the building sand and sand bailing integrated machine 9 through the slurry pump 8-1, and building sand can be bailed; if the liquid level still has an upward trend, finally, the valve 13-2 is closed, the valve 13-1 is opened, and the tailing concentration underflow (i.e. the tailing obtained by combining the residual tailings after the building sand is fished by coarse tailings and the tailings obtained by the magnetic separation tailings) is sent to the dry sand discharge and bailing integrated machine 10, and the dry sand discharge is bailed for sale.
If the liquid level is reduced, the tailing filling amount needs to be larger than the tailing generation amount of the concentrating mill, and the tailing generation amount of the concentrating mill needs to be increased. Firstly, closing a valve 13-1, opening a valve 13-2, cancelling the dry sand discharge of the salvaging, and directly conveying the tailing concentrated underflow (namely, the residual tailings after the building sand is fished by coarse tailings and the tailings after the magnetic tailings are combined) into a downhole filling system; secondly, considering that the valve 12-2 is closed, the valve 12-1 is opened, building sand is not fished out, and coarse tailings are directly sent to the tailings concentrator 11; finally, the belt rotating speed and the distributing plate parameters of the dry separator 2 are considered to be adjusted, the yield of waste rock in dry separation is reduced, and the tailing yield is increased.
The small fluctuation of the liquid level change range indicates that small fluctuation occurs between the tailings production amount of the concentrating mill and the underground tailings filling amount, and the sand-bailing yield of the building sand-bailing integrated machine 9 and the dry sand-discharging-bailing integrated machine 10 can be increased or reduced by small amplitude by adjusting the operating frequency, the ore pulp concentration and other parameters of the slurry pump 8-1 and the thickener underflow pump 8-2, so that balance is achieved between the tailings amount of the concentrating mill and the underground tailings filling demand amount.
The technical scheme provided by the embodiment of the application has at least the following technical effects or advantages:
according to the tailings treatment system, the tailings treatment method and the ore treatment system provided by the embodiment of the application, the tailings concentrator is matched with the first circuit, the second circuit, the third circuit and the fourth circuit, so that the tailings produced by the concentrating mill are stably regulated and controlled along with the change of the properties of the extracted ores and the requirement of the underground tailings filling, the tailings produced by the concentrating mill are matched, the production balance of the extraction is ensured, the whole underground tailings filling is finally realized, a tailings warehouse is not required to be built, the tailings are not discharged, and the environment-friendly requirement is met.
In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the application may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the application, various features of the application are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be construed as reflecting the intention that: i.e., the claimed application requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this application.
It should be noted that the above-mentioned embodiments illustrate rather than limit the application, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third, etc. do not denote any order. These words may be interpreted as names.
Claims (10)
1. A tailings treatment system, comprising: the tailings concentrator comprises a tailings concentrator, a first line, a second line, a third line and a fourth line for conveying tailings;
the first circuit and the second circuit are arranged in parallel between a coarse tailings source and a feed inlet of the tailings concentrator, and the third circuit and the fourth circuit are arranged in parallel between a discharge outlet of the tailings concentrator and an underground filling system;
a first valve is arranged on the first circuit;
a second valve and a first sand dredger are arranged on the second line;
a third valve and a second sand dredger are arranged on the third line;
and a fourth valve is arranged on the fourth line.
2. The tailings treatment system of claim 1, further comprising a fifth line disposed between a source of magnetic tailings and a feed inlet of the tailings concentrator.
3. The tailings treatment system of claim 1, further comprising a first slurry pump disposed on the third line and positioned between the second valve and the feed inlet of the first bailer.
4. The tailings treatment system of claim 1, further comprising a second slurry pump disposed on the third line and positioned between the third valve and a feed inlet of the second bailer.
5. The tailings treatment system of claim 1, wherein the first sand dredger is a coarse sand dredger and the second sand dredger is a fine sand dredger.
6. The tailings treatment system of claim 1, wherein the downhole packing system is provided with a level gauge.
7. A method of tailings treatment using the tailings treatment system of any one of claims 1 to 6, comprising:
when the tailings amount is smaller than the filling demand amount, closing the second valve and the third valve, opening the first valve and the fourth valve, and sending the concentrated tailings obtained by the tailings concentrator to the underground filling system through the fourth line for tailings filling;
when the tailings amount is larger than the filling demand amount, closing the first valve and the third valve, opening the second valve and the fourth valve, sending the coarse tailings to the first sand dredger to scoop building sand, sending the obtained tailings to the tailings concentrator for concentration, and then sending the tailings to the underground filling system for tailings filling through the fourth line;
or when the tailing amount is larger than the filling demand amount, opening the first valve and the third valve, closing the second valve and the fourth valve, sending the concentrated tailings to the second sand dredger to scoop building sand, and sending the obtained tailings to the underground filling system through the fourth line for tailing filling;
or when the tailings amount is larger than the filling demand amount, closing the first valve and the fourth valve, opening the second valve and the third valve, sending coarse tailings into the first sand dredger to scoop building sand once, sending the obtained tailings into the tailings concentrator to concentrate, and then sending the obtained tailings into the second sand dredger to scoop building sand twice, and sending the obtained tailings into the underground filling system to fill tailings.
8. The method as recited in claim 7, further comprising: and judging the size relation between the tailing amount and the filling demand amount through the liquid level amount of the underground filling system.
9. The ore processing system is characterized by comprising a dry separator, a first magnetic separator and a tailing processing system, wherein a discharge port of the dry separator is connected with a feed port of the first magnetic separator; the waste outlet of the first magnetic separator forms a coarse tailings source;
the tailing treatment system comprises a tailing concentrator, a first line, a second line, a third line and a fourth line for conveying tailings; the first circuit and the second circuit are arranged in parallel between the coarse tailings source and the feed inlet of the tailings concentrator, and the third circuit and the fourth circuit are arranged in parallel between the discharge outlet of the tailings concentrator and the underground filling system; a first valve is arranged on the first circuit; a second valve and a first sand dredger are arranged on the second line; a third valve and a second sand dredger are arranged on the third line; and a fourth valve is arranged on the fourth line.
10. The ore processing system of claim 9, further comprising a ball mill, a cyclone, a second magnetic separator; the feed inlet of the ball mill is connected with the screening material outlet of the first magnetic separator; the feeding pipe of the cyclone is connected with the discharge port of the ball mill, and the bottom flow pipe of the cyclone is connected with the feed port of the ball mill; the feed inlet of the second magnetic separator is connected with the flash pipe of the cyclone, the waste outlet of the second magnetic separator forms a magnetic separation tailing source, and a fifth line is arranged between the magnetic separation tailing source and the feed inlet of the tailing concentrator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310655128.0A CN116764800A (en) | 2023-06-05 | 2023-06-05 | Tailing treatment system, tailing treatment method and ore treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310655128.0A CN116764800A (en) | 2023-06-05 | 2023-06-05 | Tailing treatment system, tailing treatment method and ore treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116764800A true CN116764800A (en) | 2023-09-19 |
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ID=87995617
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310655128.0A Pending CN116764800A (en) | 2023-06-05 | 2023-06-05 | Tailing treatment system, tailing treatment method and ore treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116764800A (en) |
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2023
- 2023-06-05 CN CN202310655128.0A patent/CN116764800A/en active Pending
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