CN212582705U - Tailing pond duty-saving and efficiency-increasing system before closing - Google Patents
Tailing pond duty-saving and efficiency-increasing system before closing Download PDFInfo
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- CN212582705U CN212582705U CN202020656886.6U CN202020656886U CN212582705U CN 212582705 U CN212582705 U CN 212582705U CN 202020656886 U CN202020656886 U CN 202020656886U CN 212582705 U CN212582705 U CN 212582705U
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Abstract
The utility model discloses a tailing storehouse is taken a duty to increase efficiency system before closing storehouse belongs to the tailing storehouse field, and tailing storehouse is taken a duty to increase efficiency system before closing the storehouse includes: a tailing pond, wherein a dry beach surface is formed in the tailing pond; the mine base sub-dike is built on the dry beach surface, so that an ore drawing area is formed in the space between the mine base sub-dike and a tailing dam of the tailing base in the tailing base, and a drainage area is formed in the space between the mine base sub-dike and a tailing end of the tailing base, the ore drawing area is used for storing tailings, and the drainage area is used for storing water. The utility model discloses a tailing storehouse is taken duty to increase efficiency system before closing storehouse can fully occupy the empty storehouse of dry beach top in the tailing storehouse and hold, realizes the maximize that tailing storehouse capacity utilized to can create favourable topographic conditions for closing storehouse engineering.
Description
Technical Field
The utility model relates to a tailing storehouse field especially relates to a tailing storehouse is taken a duty to increase efficiency system before closing storehouse.
Background
The tailing pond is a place which is formed by building a dam to intercept a valley opening or enclosing the ground and is used for piling metal or nonmetal mines and discharging tailings or other industrial waste residues after ore sorting.
The method is characterized in that the method comprises the steps that ten thousands of tailing ponds are arranged in China, at present, more tailing ponds are served to the middle and later stages, and the pond closing engineering is required according to the requirements of relevant national laws and regulations. The conventional closed tailing pond engineering is used for earthing and greening according to the existing topographic conditions of the tailing pond, and flood discharge systems such as a flood spillway are usually arranged for discharging flood.
In order to maintain the continuous development of mine enterprises, after the existing tailing pond is closed, a new tailing pond is required to be built for piling tailings generated in subsequent production. And in the later period of part of mines, the ore surplus is not large, the amount of correspondingly generated tailings is not large, if a newly-built tailing pond stores tailings, land acquisition is necessary, necessary newly-built engineering procedures are performed, the period is 2-3 years more, and the engineering investment is large.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a tailing storehouse is taken a percentage to increase efficiency before closing storehouse through providing a system, the technical problem that the storage capacity utilization of tailing storehouse among the prior art need be newly-built by closing the storehouse inadequately fully promptly, realized serving the latent capacity expansion that digs to later stage tailing storehouse, can satisfy the pile up of later stage tailing, can avoid the land acquisition, construction, the time limit for a project problem that newly-built tailing storehouse brought to the mine that is in the later stage and the ore surplus is little, also can create favourable topographic conditions for closing storehouse engineering simultaneously.
The embodiment of the application provides a tailing storehouse is makeed efficiency increase system before closing the storehouse, tailing storehouse is makeed efficiency increase system before closing the storehouse includes: a tailing pond, wherein a dry beach surface is formed in the tailing pond; the mine base sub-dike is built on the dry beach surface, so that an ore drawing area is formed in the space between the mine base sub-dike and a tailing dam of the tailing base in the tailing base, and a drainage area is formed in the space between the mine base sub-dike and a tailing end of the tailing base, the ore drawing area is used for storing tailings, and the drainage area is used for storing water.
In some embodiments, the draw area communicates with the drainage area.
In some embodiments, a tailing discharge water channel is arranged on the inner sub-dike of the reservoir; the ore drawing area is communicated with the drainage area through the tailing discharging water channel.
In some embodiments, the tailings drainage water channel is formed between at least one end of the inner sub-bank of the tailings pond and the inner side of the tailings pond.
In some embodiments, the width of the tailings drainage water channel is 1m-3 m.
In some embodiments, the in-reservoir sub-dike is constructed by at least one of membrane bag stacking, soil sub-dam stacking, and dry tailings stacking.
In some embodiments, the drainage area is in communication with an in-store flood drainage system of the tailings pond.
In some embodiments, a closed reservoir flood discharge system is built on the tailings reservoir.
In some embodiments, at least one of ore drawing and dry tailing drawing is deposited in the draw area by wet discharge.
In some embodiments, the in-reservoir sub-dike is disposed proximate to a tailings reservoir of the tailings reservoir such that the draw area is larger than the drainage area.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
1. the embodiment of the application provides a duty enhancement system for a tailing pond before closing the pond, which is characterized in that a sub-dam in the pond is built on a dry beach surface formed in the tailing pond serving at the middle and later stages, so that an ore discharge area is formed in a space between the sub-dam in the pond and a tailing dam of the tailing pond, and a drainage area is formed in a space between the sub-dam in the pond and a tailing end of the tailing pond, the dry beach surface of the tailing pond is inclined downwards to form a slope surface from the dam top of the tailing dam to the tailing end of the tailing pond, tailing water flows to the direction of the lower tailing dam end from the direction of the tailing dam, the sub-dam in the pond is built to form interception, the formed ore discharge area can be continuously used for storing tailings, the formed drainage area can be used for storing tailing water and is used as a space enough for regulating flood and draining flood in the pond, so that empty pond capacity above the dry beach surface in the tailing pond is fully utilized, and the maximization of the utilization of the capacity of the tailings pond is realized. The mining and submerging capacity expansion of the tailings pond serving at the middle and later stages is realized, the stockpiling of the tailings at the later stages can be met, and the problems of land acquisition, construction and construction period caused by newly-built tailings ponds can be avoided for mines at the later stages with small ore allowance. Therefore, the duty increase system for the tailing pond before the tailing pond is closed provided by the embodiment of the application fully occupies the empty pond capacity above the dry beach surface in the tailing pond before the tailing pond is closed, the utilization rate of the pond capacity is improved, the situation that a new tailing pond is needed for a mine in a later period and with small ore allowance is avoided, and the duty increase of the tailing pond before the tailing pond is closed is realized.
2. After continuous ore drawing in the ore drawing area, the dam crest of the secondary dike and the tailing dam in the reservoir can be finally formed to be horizontal, or the slope of the top of the secondary dike in the reservoir is about 1% -3% of the dry beach surface when the reservoir is closed to the dam crest of the tailing dam, namely the tailing reservoir finally forms a water-dispersing slope surface with the lower dam crest of the tailing dam and the slightly higher dam crest of the secondary dike in the reservoir, the topography can be fully utilized to close the reservoir, smooth drainage and flood discharge can be realized, simultaneously, water and soil conservation is considered, and favorable terrain conditions are created for reservoir closing engineering.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
In the drawings:
fig. 1 is a schematic structural diagram of a tailing pond space occupation synergistic system before closing a pond according to an embodiment of the present application;
fig. 2 is a schematic sectional structure diagram of a tailing pond space occupation enhancement system before closing the pond according to an embodiment of the application.
In the figure:
100. a tailing pond duty synergistic system before closing the pond; 10. a tailings pond; 20. a small dike is stored in the reservoir; 11. dry beach surface; 12. a tailing dam; 13. a tail of the warehouse; 101. an ore drawing area; 102. a drainage area; 201. a tailing water discharge channel; 110. and (5) drying the beach surface when the warehouse is closed.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
In the present invention, unless otherwise specified, the use of directional words such as "upper and lower" is generally in reference to the orientation shown in the drawings, or to the vertical, perpendicular or gravitational orientation; likewise, for ease of understanding and description, "left and right" are generally to the left and right as shown in the drawings; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself, but the above directional terms are not intended to limit the present invention.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
And after the tailing pond is served to the middle and later stages, the closed pond engineering is required to be carried out. However, tailings are discharged when the mine still runs, a newly-built tailing pond is required to pile tailings generated in subsequent production, the ore surplus is not large when part of the mine reaches the later stage, the corresponding amount of the generated tailings is not large, land acquisition is required if the newly-built tailing pond stores the tailings, necessary newly-built engineering procedures are carried out, the period is 2-3 years more, and the engineering investment is large. The utilization rate of the storage capacity of the tailing pond which is served to the later stage and needs to be closed is about 75-85 percent, namely, the utilization of the storage capacity is not sufficient, and for the tailing pond which is served to the later stage and needs to be closed, if ore is continuously put into the tailing pond, the problem that the artificial low-lying area close to the tail of the tailing pond is occupied by tailing particles, sufficient flood regulating and discharging space is not available and the like is caused, so that accidents are easily caused, and the storage capacity of the tailing pond cannot be fully utilized.
In order to solve the technical problem that in the prior art, a tailing pond needs to be newly built due to the fact that the tailing pond is closed only when the storage capacity of the tailing pond is not sufficiently utilized, the embodiment of the application provides a tailing pond duty-increase system before the tailing pond is closed.
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, the embodiment of the present application provides a duty enhancement system for a tailing pond before closing the pond, and the duty enhancement system 100 for the tailing pond before closing the pond comprises a tailing pond 10, a sub-bank 20 in the pond, and an ore drawing area 101 and a water draining area 102 formed between the sub-bank 20 and the tailing pond 10.
The tailings pond 10 is a tailings pond which is served to the middle and later stages, namely a tailings pond which needs to be closed or closed after a short time of service. A dry beach face 11 (namely the dry beach face before closing the mine) is formed in the tailing pond 10, the dry beach face 11 is the tailing dam 12 of the tailing pond 10 from the top to the tailing deposit beach face of the water side line in the pond, tailings are discharged in front of the tailing dam 12, large particles are deposited in front of the dam, tailing water flows to the tail end of the lower pond, hydraulic classification is continuously deposited, and the dry beach face is formed in front of the tailing dam 12 of the tailing pond 10. The dry beach 11 of the tailing pond 10 is generally inclined downwards to form a slope from the top of the tailing dam 12 to the tail of the tailing pond 10, and the tailing water flows from the direction of the tailing dam 12 to the direction of the lower tail.
The secondary dike 20 in the tailings pond 10 is built on the dry beach surface 11, so that an ore drawing area 101 is formed in the space between the secondary dike 20 in the tailings pond 10 and the tailings dam 12 of the tailings pond 10, and a drainage area 102 is formed in the space between the secondary dike 20 in the tailings pond and the tailings 13 of the tailings pond 10, the ore drawing area 101 is used for storing tailings, and the drainage area 102 is used for storing water. The drainage area 102 is primarily an artificial depression, typically at least 1m below the crest of the tailings dam 12 or tailings dump dam.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
according to the filling and efficiency increasing system for the tailings pond before closing the pond, for the tailings pond 10 which serves to the middle and later stages, the inner sub-dike 20 of the pond is built on the dry beach face 11 formed in the tailing pond 10, so that the space between the inner sub-dike 20 of the pond and the tailing dam 12 of the tailing pond 10 forms the ore discharge area 101, and the space between the inner sub-dike 20 of the pond and the tailing tail 13 of the tailing pond 10 forms the drainage area, the dry beach face 11 of the tailing pond 10 generally inclines downwards from the top of the tailing dam 12 to the tail of the tailing pond 10 to form a slope, tailing water generally flows from the direction of the tailing dam 12 to the direction of the lower tail of the pond, the built inner sub-dike 20 of the pond in the embodiment forms interception, the formed ore discharge area 101 can be used for storing tailings, tailing particles are all stored in the interception ore discharge area 101, the formed drainage area 102 can store the tailing water and reserve a space which is enough for regulating and draining floodwater in the pond, therefore, the empty reservoir capacity above the dry beach surface 11 in the tailing reservoir 10 is fully occupied under the condition of ensuring the safety performance of the tailing reservoir, the maximization of the utilization of the reservoir capacity of the tailing reservoir is realized, and the utilization rate of the reservoir capacity of the tailing reservoir can reach 95-98%. The mining and submerging capacity expansion of the tailings pond served to the middle and later periods is realized, the stockpiling of the tailings in the later period can be met, the problems of land acquisition, construction and construction period caused by a newly-built tailings pond can be avoided for the mine in the later period with small ore allowance, and the duty increase of the tailings pond before the tailing pond is closed is realized. Meanwhile, after continuous ore drawing in the ore drawing area 101, tailings are deposited in the ore drawing area 101, and finally a dry beach face 110 when the dam is closed, wherein the dam tops of the sub-dikes 20 and the tailing dam 12 in the reservoir are horizontal, or the top of the sub-dike 20 in the reservoir inclines to about 1% -3% of the dam top of the tailing dam 12 (the dam top of the tailing dam is also called the beach top), is formed finally in the tailing reservoir 10, namely a water dispersion slope surface with the low dam top of the tailing dam 12 and the slightly high dam top of the sub-dike 20 in the reservoir is formed, so that the reservoir can be closed by fully utilizing the terrain, smooth drainage and flood discharge can be realized, water and soil conservation can be considered, and favorable terrain conditions are created for the reservoir closing engineering.
In this embodiment, the ore drawing area 101 is communicated with the drainage area 102, so that the tailing water can flow into the drainage area 102 after the ore drawing of the ore drawing area 101, and the tailing particles are deposited in the ore drawing area 101, so as to fully utilize the space of the ore drawing area 101. Of course, the adjustment can be made according to the actual application, and the ore drawing area 101 and the water draining area 102 may not be communicated with each other.
A tailing discharge water passage 201 may be provided in the reservoir sub-dike 20 so that the ore drawing region 101 communicates with the water discharge region 102 through the tailing discharge water passage 201. The tailings drainage water channel 201 may be formed between at least one end of the inner bank 20 and the inner side of the tailings pond 10. The inside of the reservoir sub-dike 20 can be directly provided with a tailing discharge water channel without limitation. The width of the tailing water passage 201 may be 1m to 3 m.
The sub-dike 20 in the reservoir can be constructed by at least one of film bag stacking, soil sub-dam stacking and dry tailing stacking. Of course, the sub-base 20 may be constructed in other ways, and those skilled in the art will appreciate that sub-bases constructed in other ways are within the scope of the present application.
The drainage area 102 may be in communication with an in-reservoir drainage system of the tailings pond 10, which is the originally constructed tailings pond drainage system of the tailings pond 10. Or a closed-reservoir drainage system such as a spillway can be built before the tailing reservoir 10 is lifted up to facilitate drainage, and the closed-reservoir drainage system is a drainage system built when the reservoir is closed. By adopting the arrangement, the requirement of the drainage area 102 on the capacity of the tailings pond flood control reservoir can be reduced, and the area of the drainage area 102 is reduced, so that the area of the ore drawing area 101 can be increased, and the purpose of more fully utilizing the capacity of the tailings pond is achieved.
The ore drawing may be performed by at least one of wet-discharge alluvial ore and dry-discharge tailing in the ore drawing area 101.
The sub-dike 20 in the reservoir may be located close to the tailing end of the tailings reservoir 10 so that the draw area 101 is larger than the drainage area 102. Thereby further make full use of tailing storehouse volume to store more tailings.
The construction and operation of the duty cycle enhancement system for the tailings pond before closing the pond provided by the embodiment of the application are introduced as follows:
s100: firstly, building a secondary dike 20 in the tailings pond 10 in a certain range on a dry beach surface 11 before closing the pond, so that an ore drawing area 101 and a drainage area 102 are formed in the tailings pond 10. The sub-dike in the reservoir can be formed by piling up the dry beach on the premise of meeting the design flood discharge requirement. The secondary dike 20 in the reservoir can be constructed by membrane bag piling, soil dam piling, dry tailings piling and the like, and tailing discharge water channels 201 with the width of 1-3m are reserved at two ends of the secondary dike 20 in the reservoir.
S200: and (3) carrying out deposit-impacting drawing or dry tailing discharging in the drawing area 101, and fully occupying the area where the dry beach surface 11 does not reach the final stacking elevation before the tailing pond 10 is closed. The ore drawing area 101 is an area enclosed by the dam top of the tailing dam 12 to the inner dike 20 of the tailings pond and the terrain on two sides of the tailings pond 10.
S300: the tailings water flows from the draw area 101 to the drainage area 102. The drainage region 102 is a space reserved in the tailing pond and enough for regulating flood and draining flood, the drainage region 102 is communicated with a flood draining system in the tailing pond, and a closed-pond flood draining system such as a spillway can be built in advance, so that the requirement on the capacity of the tailing pond for regulating flood is reduced, the area of the drainage region 102 is reduced, the range of the ore drawing region 101 can be enlarged, and the purpose of more fully utilizing the capacity of the tailing pond is achieved.
S400: and finally, drawing ore to form a closed-reservoir dry beach surface 110 with the horizontal inner embankment 20 and the horizontal top of the tailing dam 12, or a closed-reservoir dry beach surface 110 with the top of the inner embankment 20 sloping to about 1% -3% of the top of the tailing dam 12, so that more effective reservoir capacity between the closed-reservoir dry beach surface 110 and the dry beach surface 11 before closing the reservoir can be obtained.
The inventor of the application simulates the duty cycle synergistic system of the tailings pond before closing the pond, the original tailings pond adopts an upstream tailing dam piling process, the dam is built on multiple surfaces, and the total storage capacity is about 1300 multiplied by 104m3Effective storage capacity of about 950X 104m3By applying the bookThe technical scheme of the duty cycle enhancement system for the tailings pond before the closing of the pond provided by the embodiment is applied to ore drawing and capacity expansion, and the effective storage capacity can be obtained by about 200 multiplied by 104m3The method can find a way for the residual tailings in the later period of the enterprise, can create favorable terrain conditions for closed warehouses, and creates great benefits for the enterprise.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (10)
1. The duty cycle efficiency enhancement system for the tailings pond before the closing of the pond is characterized by comprising:
a tailing pond, wherein a dry beach surface is formed in the tailing pond;
the mine base sub-dike is built on the dry beach surface, so that an ore drawing area is formed in the space between the mine base sub-dike and a tailing dam of the tailing base in the tailing base, and a drainage area is formed in the space between the mine base sub-dike and a tailing end of the tailing base, the ore drawing area is used for storing tailings, and the drainage area is used for storing water.
2. The duty cycle enhancement system for the tailings pond before the closing of the pond according to claim 1, wherein:
the ore drawing area is communicated with the water drainage area.
3. The duty cycle enhancement system for the tailings pond before the closing of the pond according to claim 1, wherein:
a tailing discharge water channel is arranged on the inner dike of the reservoir;
the ore drawing area is communicated with the drainage area through the tailing discharging water channel.
4. The fill and efficiency enhancement system for the tailings pond before the pond is closed is characterized in that:
and the tailing discharging water channel is formed between at least one end of the inner secondary dike and the inner side of the tailing pond.
5. The fill and efficiency enhancement system for the tailings pond before the pond is closed is characterized in that:
the width of the tailing discharging water channel is 1m-3 m.
6. The duty cycle enhancement system for the tailings pond before the closing of the pond according to claim 1, wherein:
the secondary dike in the reservoir is constructed by at least one of membrane bag stacking, soil dam stacking and dry tailing stacking.
7. The duty cycle enhancement system for the tailings pond before the closing of the pond according to claim 1, wherein:
and the drainage area is communicated with a flood drainage system in the tailings pond.
8. The duty cycle enhancement system for the tailings pond before the closing of the pond according to claim 1, wherein:
and a closed-reservoir flood drainage system is built on the tailing reservoir.
9. The duty cycle enhancement system for the tailings pond before the closing of the pond according to claim 1, wherein:
and at least one of ore drawing and dry tailing discharging is accumulated in the ore drawing area through wet discharging.
10. The duty cycle enhancement system for the tailings pond before the closing of the pond according to any one of claims 1 to 9, wherein:
the inner sublevel is arranged close to the tail of the tailing pond, so that the ore drawing area is larger than the drainage area.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020656886.6U CN212582705U (en) | 2020-04-26 | 2020-04-26 | Tailing pond duty-saving and efficiency-increasing system before closing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020656886.6U CN212582705U (en) | 2020-04-26 | 2020-04-26 | Tailing pond duty-saving and efficiency-increasing system before closing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115492131A (en) * | 2022-08-23 | 2022-12-20 | 攀钢集团矿业有限公司 | Embankment type soil covering method and device for tailing pond closed tail weak beach face |
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2020
- 2020-04-26 CN CN202020656886.6U patent/CN212582705U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115492131A (en) * | 2022-08-23 | 2022-12-20 | 攀钢集团矿业有限公司 | Embankment type soil covering method and device for tailing pond closed tail weak beach face |
| CN115492131B (en) * | 2022-08-23 | 2023-06-13 | 攀钢集团矿业有限公司 | Weak beach embankment earth covering method and device for tail part of tailing pond |
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