CN110747865A - Device and method for quickly forming beach by fine tailings - Google Patents
Device and method for quickly forming beach by fine tailings Download PDFInfo
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- CN110747865A CN110747865A CN201911059221.5A CN201911059221A CN110747865A CN 110747865 A CN110747865 A CN 110747865A CN 201911059221 A CN201911059221 A CN 201911059221A CN 110747865 A CN110747865 A CN 110747865A
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- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/18—Making embankments, e.g. dikes, dams
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Abstract
The invention provides a device and a method for forming a beach quickly by fine tailings, which relate to the field of damming, and comprise the following steps: the device comprises a sub-dam, a main ore drawing pipeline and a multi-stage branch pipe; the ore drawing main pipeline is fixed on the sub-dam, the multi-stage branch pipes are arranged at intervals along the length direction of the ore drawing main pipeline respectively, and the multi-stage branch pipes are connected with the ore drawing main pipeline respectively; the lengths of the multi-stage branch pipes are sequentially increased in an increasing mode, so that the ports of the multi-stage branch pipes form multi-stage tailing slurry outflow positions with different distances from the ore drawing main pipe. Because the ports of the multi-stage branch pipes form multi-stage tailing slurry outflow positions, and the multi-stage branch pipes can respectively perform subsection ore drawing and filling aiming at the positions corresponding to the ports of the multi-stage branch pipes, compared with the tailings dry beach length formed by a conventional hydraulic flushing and accumulating ore drawing method of fine-grained tailing slurry, the device for quickly forming the beach of the fine tailings provided by the invention can quickly prolong the dry beach length of a tailings dam by means of subsection ore drawing and filling of the multi-stage branch pipes, so that the flood control capability and the dam body stability of the tailings reservoir are improved.
Description
Technical Field
The invention relates to the technical field of damming, in particular to a device and a method for quickly forming a beach by fine tailings.
Background
With the continuous development and progress of science and technology, the granularity of tailings discharged from most ore dressing plants of mine enterprises is increasingly fine, and particularly, the warehousing of fine-grained tailings becomes a normal state in some areas in recent years. Fine tailings are generally referred to as having an average particle size of no more than 0.03mm, with tailings content of less than 0.019mm typically being greater than 50%. Since particles smaller than 0.019mm are not easy to deposit, when the concentration of the suspension is 5% -10%, the undercurrent speed exceeds 10cm/s, the density flow can occur.
The device that fine tailings became the beach among the prior art generally includes sub-dam, ore drawing trunk line and a plurality of ore drawing branch pipes, and wherein, the ore drawing trunk line generally lays on the sub-dam top, and a plurality of ore drawing branch pipes set up along the length direction interval of ore drawing trunk line respectively, and a plurality of ore drawing branch pipes are connected with the ore drawing trunk line respectively. The ore pulp conveying pump is connected with the main ore drawing pipeline, and the ore pulp conveying pump conveys fine-grained tailing pulp to the main ore drawing pipeline, then the fine-grained tailing pulp flows out through ports of the ore drawing branch pipes and is solidified and deposited on one side of the sub-dam to form a tailing beach surface.
The fine-grained tailings have poor consolidation and deposition, and the length of a dry beach formed in front of a sub dam is generally short, so that the flood control capability and the stability of a dam body of the tailings dam are poor.
Disclosure of Invention
The invention aims to provide a device and a method for quickly forming a beach by fine tailings, which aim to solve the technical problems of poor flood control capability and dam body stability of a tailing dam caused by poor consolidation and deposition of fine-grained tailings and short dry beach length formed in front of a sub-dam in the prior art.
The invention provides a device for forming a beach quickly by fine tailings, which comprises: the device comprises a sub-dam, a main ore drawing pipeline and a multi-stage branch pipe;
the ore drawing main pipeline is fixed on the sub-dam, the multi-stage branch pipes are arranged at intervals along the length direction of the ore drawing main pipeline respectively, and the multi-stage branch pipes are connected with the ore drawing main pipeline respectively;
the lengths of the multi-stage branch pipes are sequentially increased in an increasing mode, so that the ports of the multi-stage branch pipes form multi-stage tailing slurry outflow positions with different distances from the ore drawing main pipe.
Furthermore, the number of the branch pipes of each stage is multiple, and the multiple branch pipes are respectively connected with the main ore drawing pipeline;
each branch pipe is kept away from the one end of ore drawing trunk line is connected with the pipe of permeating water, it has seted up a plurality of overflow holes on the pipe to permeate water.
Further, the water permeable pipe is T-shaped;
the water permeable pipe comprises a transverse pipe and a vertical pipe, the transverse pipe is perpendicular to the vertical pipe, and the vertical pipe is connected with the middle part of the transverse pipe;
the overflow holes are formed in the transverse pipe, and one end, far away from the transverse pipe, of the vertical pipe is connected with the branch pipe.
Further, one end, far away from the transverse pipe, of the vertical pipe is detachably connected with the branch pipe.
Further, a plurality of overflow holes are evenly and alternately distributed on the pipe wall of the transverse pipe.
Furthermore, in the multi-stage branch pipes, the length of each stage of branch pipe is the same;
all the multi-stage branch pipes are divided into a plurality of groups, and the plurality of groups of branch pipes are arranged at intervals along the length direction of the main ore drawing pipeline;
each group comprises one branch pipe of each stage, a plurality of branch pipes in each group are sequentially arranged on the main ore drawing pipeline from short to long, and the arrangement sequence of the branch pipes in the multiple groups is consistent.
Further, the inner diameter of the transverse pipe is 80mm-120 mm.
Furthermore, the aperture of the overflow holes is 15mm-25mm, and the pitch between the overflow holes is 0.1m-0.2 m.
Furthermore, one end of the main ore drawing pipeline is connected with an ore pulp delivery pump, and one end, close to the ore pulp delivery pump, of the main ore drawing pipeline is provided with a main pipe valve;
and branch pipes are respectively arranged on the multiple stages of branch pipes.
When the device for quickly forming the fine tailings into the beach is used, the ore pulp delivery pump is connected with one end of the main ore drawing pipeline, so that the ore pulp delivery pump delivers fine-grained tailing suspension to the main ore drawing pipeline, and then the fine-grained tailing suspension flows out through the ports of the multi-stage branch pipes.
Because the ports of the multistage branch pipes form multistage tailing slurry outflow positions, the multistage branch pipes can respectively perform subsection ore drawing filling aiming at the positions corresponding to the ports of the multistage branch pipes, and therefore compared with the tailings dry beach length formed by a conventional hydraulic flushing and accumulating ore drawing method of fine-grained tailing slurry in the prior art, the device for quickly forming the fine tailings into the beach provided by the invention performs subsection ore drawing filling by means of the multistage branch pipes, the dry beach length of a tailings dam can be quickly prolonged, and the flood control capacity and the dam body stability of the tailings reservoir are improved.
The invention also provides a method for quickly forming a beach by the fine tailings, which comprises the following steps:
stacking sub-dams, paving a main ore drawing pipeline on the sub-dams, and arranging multi-stage branch pipes on the main ore drawing pipeline at intervals along the length direction of the main ore drawing pipeline;
and conveying tailing slurry to the main ore drawing pipeline to enable the slurry to be filled in a subsection mode under the action of the multi-stage branch pipes.
The advantages of the method for forming the fine tailings are the same as the advantages of the device for forming the fine tailings in the prior art, and the detailed description is omitted here.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a top view of a device for rapidly forming a beach from fine tailings provided by an embodiment of the invention;
fig. 2 is a top view of a fast settling device for fine tailings provided by another embodiment of the invention;
fig. 3 is a top view of a fast settling device for fine tailings provided by another embodiment of the present invention;
fig. 4 is a side view of a device for rapid consolidation of fine tailings provided by an embodiment of the invention;
fig. 5 is a side view of a fast-settling apparatus for fine tailings provided by another embodiment of the present invention;
fig. 6 is a side view of a fast settling device for fine tailings according to another embodiment of the present invention.
Icon: 1-sub dam; 2-a main ore drawing pipeline; 21-a main pipe valve; 3-branch pipe; 31-a water permeable tube; 32-a manifold valve; 4-dry beach.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a top view of a device for rapidly forming a beach from fine tailings provided by an embodiment of the invention; fig. 2 is a top view of a fast settling device for fine tailings provided by another embodiment of the invention; fig. 3 is a top view of a fast settling device for fine tailings provided by another embodiment of the present invention; fig. 4 is a side view of the device for rapid consolidation of fine tailings provided by the embodiment of the invention.
The device that fine tailings were put into a beach fast that this embodiment provided includes: the device comprises a sub-dam 1, a main ore drawing pipeline 2 and a multi-stage branch pipe 3; the ore drawing main pipeline 2 is fixed on the sub-dam 1, the multi-stage branch pipes 3 are respectively arranged at intervals along the length direction of the ore drawing main pipeline 2, and the multi-stage branch pipes 3 are respectively connected with the ore drawing main pipeline 2; the lengths of the multi-stage branch pipes 3 are sequentially increased in an increasing mode, so that the ports of the multi-stage branch pipes 3 form multi-stage tailing slurry outflow positions with different distances from the ore drawing main pipe 2.
The sub-dam 1 can be formed by stacking and rolling tailing sand, and can also be made of waste stone, soil-stone mixture or mountain skin soil and other materials.
The sub-dam 1 is of a long strip-shaped structure, and the section of the sub-dam 1 is trapezoidal.
The sub-dam 1 is mainly used for fixing the main ore drawing pipeline 2.
Preferably, the length direction of the main ore drawing pipeline 2 is parallel to the length direction of the sub-dam 1, and the main ore drawing pipeline 2 is fixed on the top surface of the sub-dam 1.
The branch pipe 3 is arranged on one side of the sub dam 1, and the branch pipe 3 is vertical to the length direction of the main ore drawing pipeline 2. The branch pipe 3 may be parallel to the top surface of the sub-dam 1, or the length direction of the branch pipe 3 forms an acute angle with the top surface of the sub-dam 1, and the branch pipe 3 is located above the top surface of the sub-dam 1.
When the device for quickly forming fine tailings into a beach provided by the embodiment is used, the ore pulp delivery pump is connected with one end of the main ore drawing pipeline 2, so that the ore pulp delivery pump delivers fine-grained tailings suspension to the main ore drawing pipeline 2, and then the fine-grained tailings suspension flows out from the port of the multi-stage branch pipe 3.
Because the port of multistage branch pipe 3 forms multistage tailing thick liquid position of effluenting, consequently, multistage branch pipe 3 can carry out subregion section ore drawing to the position that its port corresponds respectively and fill, consequently, compare with the tailing dry beach 4 length that leans on conventional water conservancy of fine fraction tailing thick liquid to wash long-pending ore drawing method to form among the prior art, the device that the fast becomes the beach of fine tailing that this embodiment provided relies on multistage branch pipe 3 to carry out subregion section ore drawing and fills, can prolong the dry beach 4 length of tailing dam fast to improve the flood control ability and the dam body stability of tailing storehouse.
Further, in order to enable the device for quickly beaching the fine tailings to quickly form a tailings dam with a longer dry beach length of 4 so that the tailings dam has better flood control capability and dam body stability, in the device for quickly beaching the fine tailings provided by the embodiment, as shown in fig. 2 to 3, the number of the branch pipes 3 at each stage is multiple, and the multiple branch pipes 3 are respectively connected with the main ore drawing pipe 2; one end of each branch pipe 3, which is far away from the main ore drawing pipeline 2, is connected with a water permeable pipe 31, and a plurality of overflow holes are formed in the water permeable pipe 31.
The permeable pipe 31 and the branch pipe 3 can be connected by welding, bolt connection and the like, and the permeable pipe 31 and the branch pipe 3 can be integrally formed.
Preferably, the branch pipe 3 has the same inner diameter as that of the water permeable pipe 31.
Because the overflow hole is much smaller than the port of the ore drawing branch pipe 3 in the prior art, the ore drawing speed of the device for quickly forming the fine tailings into the beach becomes smaller, the sedimentation speed of the fine tailings is faster, the consolidation and the sedimentation performance of the fine tailings are improved, the dry beach 4 formed in front of the sub-dam 1 is longer, and the flood control capability and the dam body stability of the tailings reservoir are improved.
Further, in order to enable the device for quickly forming the beach by the fine tailings to form the beach surface in a wider range, in the device for quickly forming the beach by the fine tailings provided by the embodiment, as shown in fig. 1 to 3, the water permeable pipe 31 is in a T shape; the water permeable pipe 31 comprises a transverse pipe and a vertical pipe, the transverse pipe is perpendicular to the vertical pipe, and the vertical pipe is connected with the middle part of the transverse pipe; the overflow holes are arranged on the transverse pipes, and one ends of the vertical pipes, which are far away from the transverse pipes, are connected with the branch pipes 3.
The pipe 31 that permeates water of a plurality of branch pipes 3 all is the T type, and set up the overflow hole on horizontal pipe, can make the device that the fine tailings is fast into the beach draw the scope of filling bigger, because the overflow hole is little more than the port of branch pipe 3, consequently, make the draw speed of the device that the fine tailings is fast into the beach diminish, consequently, the sedimentation rate of fine grit level tailings is faster, thereby improve the consolidation and the sedimentary nature of fine grit level tailings, 4 length of dry beach that form before the sub-dam 1 are longer, thereby improve the flood control ability and the dam body stability in tailings pond.
Further, in order to save the manufacturing cost of the device for quickly forming a beach by fine tailings, in the device for quickly forming a beach by fine tailings provided by the embodiment, as shown in fig. 3, one end of the vertical pipe, which is far away from the horizontal pipe, is detachably connected with the branch pipe 3.
Because the vertical pipe is kept away from can dismantling between the one end of horizontal pipe and the branch pipe 3 and be connected, consequently, in the multistage branch pipe 3, can be through the multistage pipeline grafting back, it can with T type pervious pipe 31 and branch pipe 3 keep away from the one end of ore drawing trunk line 2 to be connected at last.
So, accomplish first district section ore drawing and fill the back, tear the pipe 31 of permeating water on the branch pipe 3 down, then keep away from another body of one end grafting of ore drawing trunk line 2 on branch pipe 3, then the one end grafting T type of keeping away from branch pipe 3 at another body pipe permeates water pipe 31, so, need not the branch pipe 3 that once only connects the difference of multiple length on ore drawing trunk line 2 to can save the manufacturing cost of the device that fine tailings become the beach fast.
Further, in order to make the device for quickly pooling the fine tailings capable of quickly extending the beach surface of the tailings dam, in the device for quickly pooling the fine tailings provided by the embodiment, as shown in fig. 4 to 6, a plurality of overflow holes are uniformly and alternately distributed on the pipe wall of the transverse pipe.
Therefore, the tailing suspension overflowing from the overflow holes can be quickly consolidated and deposited on the existing beach surface, and a new beach surface can be quickly extended).
Further, in order to uniformly lift the beach surface of the tailings, in the device for quickly forming the beach by the fine tailings provided by the embodiment, in the multi-stage branch pipes 3, the length of each stage of branch pipes 3 is the same; all the multi-stage branch pipes 3 are divided into a plurality of groups, and the plurality of groups of branch pipes 3 are arranged at intervals along the length direction of the main ore drawing pipe 2; each group comprises one branch pipe 3 of each stage, a plurality of branch pipes 3 in each group are sequentially arranged on the main ore drawing pipeline 2 from short to long, and the arrangement sequence of the branch pipes 3 in the multiple groups is consistent.
So, can make every grade of branch pipe 3 all evenly distributed on ore drawing trunk line 2 for not only do beach 4 length longer for the tailing dam that the device built of the fast beach of becoming of thin tailing, and the tailing beach face that forms is more even.
Further, in order to make the device for fast forming a beach of fine tailings capable of forming a tailing dam with a longer dry beach 4, the present embodiment provides the device for fast forming a beach of fine tailings, wherein the inner diameter of the transverse pipe is 80mm-120 mm.
Preferably, the internal diameter of the vertical pipes and the branch pipes 3 is equal to the internal diameter of the transverse pipes.
Therefore, the tailing suspension can be orderly and smoothly sprayed out after passing through the branch pipes 3, the vertical pipes and the transverse pipes, and a tailing dam with a longer length of the dry beach 4 is quickly formed.
Further, in order to make the overflow holes distributed on the transverse pipe as many as possible and achieve the effect of quickly forming the tailing dam with the longer length of the dry beach 4, in the device for quickly forming the fine tailings into the beach provided by the embodiment, the aperture of the overflow holes is 15mm to 25mm, and the hole distance between the overflow holes is 0.1m to 0.2 m.
So, can make the overflow hole that distributes on the horizontal pipe more, and because the overflow hole distributes on the horizontal pipe more even, can reach the effect that forms the longer tailing dam of dry beach 4 length fast.
Further, in order to facilitate the control of the drawing sequence of the multistage branch pipes 3 in the device for rapidly forming fine tailings into a beach by the staff, in the device for rapidly forming fine tailings into a beach provided by the present embodiment, as shown in fig. 1 to 3, one end of the main drawing pipe 2 is connected with an ore pulp delivery pump, and one end of the main drawing pipe 2, which is close to the ore pulp delivery pump, is provided with a main pipe valve 21; the multi-stage branch pipes 3 are respectively provided with branch pipe valves 32.
The opening, closing and flow rate of the passage of the main ore drawing pipeline 2 are controlled by a main pipeline valve 21, and the opening, closing and flow rate of the passage of the multi-stage branch pipeline 3 are controlled by a branch pipeline valve 32.
The workers can adopt ore drawing and filling in different sections and different sections, and can also adopt ore drawing and filling in different sections and different sections simultaneously.
Further, in order to enable workers to form a tailing dam with a longer dry beach 4 length according to the method for quickly forming a beach by using the fine tailings, so that the flood control capability and the stability of the dam body of the tailing dam are stronger, the method for quickly forming a beach by using the fine tailings comprises the following steps: stacking sub-dams 1, installing a main ore drawing pipeline 2 on the sub-dams 1, and arranging multi-stage branch pipes 3 on the main ore drawing pipeline 2 at intervals along the length direction of the main ore drawing pipeline 2; and conveying tailing slurry to the main ore drawing pipeline 2 to ensure that the tailing slurry is filled in a sectional mode under the action of the multistage branch pipes 3.
When the dry beach is formed by the method for quickly forming the fine tailings, firstly, the ore pulp delivery pump is connected with one end of the main ore drawing pipeline 2, so that the ore pulp delivery pump delivers the fine-grained tailings suspension to the main ore drawing pipeline 2, and then the fine-grained tailings suspension flows out from the port of the multi-stage branch pipe 3.
Because the ports of the multistage branch pipes 3 form the multistage tailing slurry outflow positions, the multistage branch pipes 3 can respectively perform subsection ore drawing filling on positions corresponding to the ports, and therefore, compared with the length of a tailing dry beach 4 formed by a conventional hydraulic flushing and ore drawing method of fine-grained tailing slurry in the prior art, the method for quickly forming the fine tailing beach provided by the embodiment depends on the multistage branch pipes 3 to perform subsection ore drawing filling, the length of the dry beach 4 of a tailing dam can be quickly prolonged, and therefore the flood control capacity and the dam body stability of a tailing pond are improved.
Of course, the operator may adopt ore drawing and filling in different sections and different sections, or adopt ore drawing and filling in different sections and different sections simultaneously.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A device for forming a beach fast by fine tailings is characterized by comprising: the device comprises a sub-dam, a main ore drawing pipeline and a multi-stage branch pipe;
the ore drawing main pipeline is fixed on the sub-dam, the multi-stage branch pipes are arranged at intervals along the length direction of the ore drawing main pipeline respectively, and the multi-stage branch pipes are connected with the ore drawing main pipeline respectively;
the lengths of the multi-stage branch pipes are sequentially increased in an increasing mode, so that the ports of the multi-stage branch pipes form multi-stage tailing slurry outflow positions with different distances from the ore drawing main pipe.
2. The apparatus for rapid beach formation of the fine tailings of claim 1, wherein the number of the branch pipes of each stage is plural, and the plural branch pipes are respectively connected with the main ore drawing pipeline;
each branch pipe is kept away from the one end of ore drawing trunk line is connected with the pipe of permeating water, it has seted up a plurality of overflow holes on the pipe to permeate water.
3. The apparatus for rapid beach formation of the fine tailings of claim 2 wherein the permeable pipe is T-shaped;
the water permeable pipe comprises a transverse pipe and a vertical pipe, the transverse pipe is perpendicular to the vertical pipe, and the vertical pipe is connected with the middle part of the transverse pipe;
the overflow holes are formed in the transverse pipe, and one end, far away from the transverse pipe, of the vertical pipe is connected with the branch pipe.
4. The apparatus for rapid beach formation of the fine tailings of claim 3 wherein the end of the vertical pipe remote from the transverse pipe is removably connected to the branch pipe.
5. The apparatus of claim 3, wherein the plurality of overflow holes are evenly and spaced on the wall of the transverse pipe.
6. The apparatus for rapid beach formation of the fine tailings of claim 2 wherein the length of each of the branch pipes in the plurality of stages is the same;
all the multi-stage branch pipes are divided into a plurality of groups, and the plurality of groups of branch pipes are arranged at intervals along the length direction of the main ore drawing pipeline;
each group comprises one branch pipe of each stage, a plurality of branch pipes in each group are sequentially arranged on the main ore drawing pipeline from short to long, and the arrangement sequence of the branch pipes in the multiple groups is consistent.
7. The apparatus of claim 3, wherein the transverse pipe has an inner diameter of 80mm to 120 mm.
8. The apparatus for rapid pooling of fine tailings of claim 3, wherein the aperture of the overflow holes is 15mm-25mm, and the pitch between the overflow holes is 0.1m-0.2 m.
9. The apparatus for rapid beach formation of the fine tailings of claim 1, wherein a pulp delivery pump is connected to one end of the main ore drawing pipeline, and a main pipe valve is arranged at one end of the main ore drawing pipeline, which is close to the pulp delivery pump;
and branch pipes are respectively arranged on the multiple stages of branch pipes.
10. A method for forming a beach fast by fine tailings, which is characterized by comprising the following steps:
stacking sub-dams, paving a main ore drawing pipeline on the sub-dams, and arranging multi-stage branch pipes on the main ore drawing pipeline at intervals along the length direction of the main ore drawing pipeline;
and conveying tailing slurry to the main ore drawing pipeline to enable the tailing slurry to be filled in a subsection mode under the action of the multi-stage branch pipes.
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| CN114046176A (en) * | 2021-11-10 | 2022-02-15 | 长沙矿山研究院有限责任公司 | Access stope filling and roof connecting device and method |
| CN114682376A (en) * | 2022-04-20 | 2022-07-01 | 嵩县山金矿业有限公司 | Tailing backward type ore drawing device |
| CN114682376B (en) * | 2022-04-20 | 2024-04-30 | 嵩县山金矿业有限公司 | Tailing reversing type ore drawing device |
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