CN109621592B - Dust suppression liquid for tailing pond and dust suppression construction method - Google Patents
Dust suppression liquid for tailing pond and dust suppression construction method Download PDFInfo
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- CN109621592B CN109621592B CN201811546965.5A CN201811546965A CN109621592B CN 109621592 B CN109621592 B CN 109621592B CN 201811546965 A CN201811546965 A CN 201811546965A CN 109621592 B CN109621592 B CN 109621592B
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Abstract
The invention relates to the technical field of mine tailing pond management, in particular to dust suppression liquid for a tailing pond. The biomass fiber composite material comprises a tailing liquid, sand grains and a biomass fiber material, wherein the weight ratio of the tailing liquid to the sand grains to the biomass fiber material is 100: (3-10):(1-10). The biomass fiber material is hay or straw. A dust suppression construction method for a tailing pond comprises a movable spraying device and comprises the following steps: 1) preparing 80-200 meshes of sand grains and 10-50 mm of fiber short sections according to the weight ratio of 100: (3-10) adding the mixture into a stirring tank according to the proportion of (1-10) and uniformly stirring; 2) pressurizing the mixed liquid in a stirring state through a mud pump, and spraying the mixed liquid to a dry beach area through a nozzle connected with the mud pump; 3) rolling the sprayed beach surface by a round roller. The invention has the beneficial effects that: materials are convenient to obtain, and the mixed liquid can increase the specific gravity of the materials on the surface of the dry beach and reduce the floatability along with wind; the material is environment-friendly, and the price is low, and compared with the traditional viscose spraying, the dust fall cost can be greatly reduced.
Description
Technical Field
The invention relates to the technical field of mine tailing pond management, in particular to dust suppression liquid for a tailing pond and a dust suppression construction method.
Background
The main functions of the gold mine tailing pond are to store tailing slag discharged in the production process of a metal mine and to recycle circulating water through natural filtration for recycling by an option factory, the tailing pond comprises a dam body, a dry beach and a catchment area, wherein the dry beach is formed by natural precipitation of tailings of the option factory, and the dust pollution problem can be formed in dry seasons or wind seasons, and the mature dust suppression method is to spray a dust suppressant to solidify the surface of the dry beach and spray water to suppress dust. The dust suppressant is sprayed to have a good dust suppression effect, but the area of a dry beach is large, the ore is dynamically drawn, and the ore is drawn again after the dust suppressant is solidified and fails, so that the dust suppressant is suitable for a closed tailing pond, the cost of the dust suppressant is high, and the dust suppressant is not environment-friendly relative to soil after the tailing is closed, so that a cheap material for solidifying the surface of the dry beach needs to be found. The defects of the water sprinkling and dust suppression method are that the sprinkling area is large, the early-stage investment cost is large, the later maintenance cost is large, the dam face is continuously increased, the sprinkling pipeline is required to be raised regularly, the method is suitable for storing water in the warehouse in a large amount, the water return quantity in the warehouse is influenced, and the method is also large in water waste.
In addition, the area of the dry beach of the tailing pond is large, firstly, because the dry beach in the dam is high in part of the terrain close to the dam body and low in dry beach terrain close to a catchment area, ore pulp flows along the terrain after ore drawing to form a deep groove, the area of covered dry beach is very small, more than 85% of the dry beach cannot be covered by the ore pulp, and dust on the dry beach in the dam is serious. Secondly, the part of the dry beach covered by the ore pulp is covered, and the ore pulp stays for a short time, so that water permeates to the shallow part below the surface layer of the dry beach, so that the dust is dried and dusted again after ore drawing, and the dust is dusted again after the dry beach is aired for about 2 days after general ore drawing in spring, autumn and other arid seasons. Therefore, if a proper area can be selected for spraying, avoiding repetition is also an effective measure for saving spraying materials and manpower.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the dust suppression liquid which is convenient to obtain materials, low in price and convenient to construct.
The technical scheme for solving the technical problems is as follows: the dust suppression liquid for the tailing pond is characterized by comprising tailing liquid, sand grains and a biomass fiber material, wherein the weight ratio of the tailing liquid to the sand grains to the biomass fiber material is 100: (3-10):(1-10). And physically mixing and stirring uniformly to form the dust suppression liquid.
The invention has the beneficial effects that: the tail mineral liquid, a small amount of sand grains and biomass fiber materials are very convenient to obtain, and the specific gravity of the materials on the surface of the dry beach can be properly increased due to the addition of the sand grains, so that the floatability along with wind is reduced; the biomass fibers increase the cohesiveness and the hardening capacity of the surface, the comprehensive utilization can obviously improve the wind resistance of the dry beach, and the material is easy to process and low in price, so that the dust settling cost can be greatly reduced compared with the traditional viscose spraying.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the biomass fiber material is a fiber short section formed by cutting hay or straws, and the length of the short section is 20-50 mm.
Further, the grain size of the sand grains is 80-200 mesh.
Further, the straw is wheat straw or rice straw.
The beneficial effect of adopting above-mentioned further scheme is, select the reasonable particle diameter of sand grain, and the reasonable length of fibre material, can rationally compromise in the aspect of improving dry beach surface hardening ability and convenient pump and spray.
In addition, the wheat straws or the rice straws are preferably selected, and the cutting processing is adopted, so that the cylindrical characteristic of the straws can be ensured, but the integrity of the hollow straws cannot be ensured by the common crushing processing. During stirring, slurry and sand can enter the straw cylinder to form a whole, so that the straw is prevented from being fused due to too small specific gravity.
The invention also discloses a dust suppression construction method for the tailing pond, which comprises the following steps of moving the spraying device:
1) preparing 80-200 meshes of sand grains and 10-50 mm of fiber short sections according to the weight ratio of 100: (3-10) adding the tailing liquid, the sand grains and the short fiber sections into a stirring tank according to the proportion of (1-10) and uniformly stirring;
2) pressurizing the mixed liquid in a stirring state through a mud pump, and spraying the mixed liquid to a dry beach area through a nozzle connected with the mud pump;
3) rolling the sprayed beach surface by a round roller.
The method has the beneficial effects that: firstly, a movable spraying device is adopted, and the defects that the spraying area is large, the early-stage investment cost is large, the later-stage maintenance cost is large, the dam surface is continuously increased, and a spraying pipeline needs to be raised regularly are overcome; secondly, spraying during stirring is beneficial to the full fusion of the mixed liquid; and compared with a dust suppressant, the dust suppression cost is reduced, and the two foreign biomass fibers are more environment-friendly.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the system also comprises a defined spraying area, in particular to the spraying of the area around the pulp tank formed after the pulp is discharged every time.
The beneficial effect who adopts above-mentioned further scheme is that, it forms depression or puddle at central authorities to put tailing thick liquid at every turn, and the periphery is then slowly anhydrated and is formed dry beach, and the rational planning region can be along with the accumulation in tailing storehouse, once only to dry beach surface solidification processing, avoids blind repeated spraying.
Furthermore, shown removal sprinkler includes the flatbed and locates agitator tank, slush pump, power device, nozzle branch, pipeline and nozzle on the flatbed, the pipeline is in proper order with agitator tank, slush pump and nozzle connection, the nozzle is located nozzle branch upper end, nozzle branch is scalable arm, locates through rotatable chassis on the flatbed.
Drawings
FIG. 1 is a schematic view of the area planning in dust suppression construction according to the present invention;
FIG. 2 is a schematic view of a mobile spraying device according to the present invention;
in fig. 1, 01, puddle area; 02. a dry beach area; 03. a tailings river;
04. a dam;
in fig. 2, 1, nozzle; 2. a nozzle strut; 3. a pipeline; 4. a slurry pump; 5. a return port; 6. a blender; 7. an upper cover; 8. a stirring tank; 9. an annular jet pipe; 10. flatbed vehicle; 11. an outflow port; 12. a power plant; 13. the chassis is rotated.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Example 1
A dust suppression liquid for a tailing pond comprises tailing liquid, sand grains and a biomass fiber material, wherein 100 kg of the tailing liquid is taken, the water content of the tailing liquid is 45% -70%, 3 kg of the sand grains with the grain size of 80-200 meshes and 10-50 mm of wheat straws or rice straws are cut, and 10 kg of the sand grains or the rice straws are taken. Adding the mixture into a stirring tank for stirring, and physically mixing and uniformly stirring to form the dust suppression liquid.
During stirring, slurry and sand can enter the straw cylinder to form a whole, so that the straw is prevented from being fused due to too small specific gravity.
Example 2
A dust suppression liquid for a tailing pond comprises tailing liquid, sand grains and a biomass fiber material, wherein 100 kg of the tailing liquid is taken, the water content of the tailing liquid is 45% -70%, 9 kg of the sand grains with the grain size of 80-200 meshes and the length of wheat straws or rice straws is 10-50 mm after cutting, and 3 kg of the wheat straws or rice straws are taken. Adding the mixture into a stirring tank for stirring, and physically mixing and uniformly stirring to form the dust suppression liquid.
Example 3
A dust suppression liquid for a tailing pond comprises tailing liquid, sand grains and a biomass fiber material, wherein 100 kg of the tailing liquid is taken, the water content of the tailing liquid is 45% -70%, 9 kg of the sand grains with the grain size of 80-200 meshes and the length of wheat straws or rice straws is 10-50 mm after cutting, and 9 kg of the wheat straws or rice straws are taken. Adding the mixture into a stirring tank for stirring, and physically mixing and uniformly stirring to form the dust suppression liquid.
The invention also discloses a dust suppression construction method for the tailing pond, which comprises the following steps of moving the spraying device:
1) preparing 80-200 meshes of sand grains and 10-50 mm of fiber short sections according to the weight ratio of 100: (3-10) adding the tailing liquid, the sand grains and the short fiber sections into a stirring tank according to the proportion of (1-10) and uniformly stirring;
2) pressurizing the mixed liquid in a stirring state through a mud pump, and spraying the mixed liquid to the surface of the dry beach through a nozzle connected with the mud pump;
3) rolling the sprayed beach surface by a round roller.
Fig. 1 is a schematic structural view of a mobile spraying device according to the present invention. In a tailing pond, except for a relatively-lasting dry beach area formed in succession, a dry beach area 02 is formed around a puddle area 01 about 30-48 hours after each slurry discharge to become a dust raising area, which is difficult to be considered by the conventional fixed spraying system. The method also comprises the step of defining a spraying area, in particular to the spraying of a dry beach area 02 around the pulp pool formed after the pulp is discharged every time. The beneficial effects are that, it forms depression or puddle area 01 at the center to put tailing thick liquid along tailing river course 03 every time, and the periphery is then slowly anhydrated and is formed dry beach area 02, and reasonable planning area can be along with the accumulation in tailing storehouse, once only to dry beach surface solidification treatment, avoids blind repeated spraying. Typically, the tailings watercourse is located opposite the dam 04.
As shown in fig. 2, the method also relates to a mobile spraying device, which comprises a flat car 10, and a stirring tank 8, a slurry pump 4, a power device 12, a nozzle support rod 2, a pipeline 3 and a nozzle 1 which are arranged on the flat car, wherein the pipeline sequentially connects the stirring tank 8, the slurry pump 4 and the nozzle 1, the nozzle 1 is arranged at the upper end of the nozzle support rod 2, and the nozzle support rod 2 is a telescopic arm and is arranged on the flat car 10 through a rotatable chassis 13. An annular jet flow pipe 9 is further arranged in the stirring tank 8, and the annular jet flow pipe 9 is connected with the outlet of the slurry pump through the confluence opening 5.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (3)
1. A dust suppression construction method for a tailing pond comprises a movable spraying device and is characterized by comprising the following steps:
1) preparing 80-200 meshes of sand grains and 10-50 mm of fiber short sections according to the weight ratio of 100: (3-10) adding the tailing liquid, the sand grains and the short fiber sections into a stirring tank according to the proportion of (1-10) and uniformly stirring;
2) pressurizing the mixed liquid in a stirring state through a mud pump, and spraying the mixed liquid to a dry beach area through a nozzle connected with the mud pump;
3) rolling the sprayed beach surface by using a round roller;
the short fiber section is preferably made of wheat straws or rice straws, and is cut, so that the cylindrical characteristic of the straws can be ensured;
the dry beach area is a defined spraying area, and particularly is sprayed in the peripheral area of a pulp pool formed after pulp is discharged every time.
2. The dust suppression construction method for the tailings pond according to claim 1, wherein the mobile spraying device comprises a flat car, and an agitator tank, a slurry pump, a power device, a nozzle support rod, a pipeline and a nozzle which are arranged on the flat car, wherein the pipeline sequentially connects the agitator tank, the slurry pump and the nozzle, the nozzle is arranged at the upper end of the nozzle support rod, and the nozzle support rod is a telescopic arm and is arranged on the flat car through a rotatable chassis.
3. The dust suppression construction method for the tailings pond of claim 2, wherein the power device is a generator or an oil gas engine, and the power device is used for supplying power to a mud pump and a stirrer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811546965.5A CN109621592B (en) | 2018-12-18 | 2018-12-18 | Dust suppression liquid for tailing pond and dust suppression construction method |
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| CN201811546965.5A CN109621592B (en) | 2018-12-18 | 2018-12-18 | Dust suppression liquid for tailing pond and dust suppression construction method |
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| CN109621592A CN109621592A (en) | 2019-04-16 |
| CN109621592B true CN109621592B (en) | 2021-12-17 |
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| CN112275069B (en) * | 2020-10-14 | 2022-03-11 | 河南城建学院 | Dust removal spray set for construction safety engineering |
| EP4308318A2 (en) * | 2021-11-22 | 2024-01-24 | Carboniferous Inc. | Carbon sequestration in anoxic zones |
| CN114703920A (en) * | 2022-03-28 | 2022-07-05 | 自然资源部第三海洋研究所 | Coastal sandstorm prevention and control system and control method thereof |
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| CN101948274A (en) * | 2010-09-06 | 2011-01-19 | 李洪彬 | Resource comprehensive utilization type coal field covering agent, using method and special equipment thereof |
| CN108650915A (en) * | 2018-04-13 | 2018-10-16 | 江苏绿之源生态建设有限公司 | Nonferrous metal mine barren rock stockyard ecological environment treatment method |
| CN108755550A (en) * | 2018-08-22 | 2018-11-06 | 唐山睿强科技有限公司 | Railway dust suppression side oblique type locomotive |
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| US20070231117A1 (en) * | 2006-04-03 | 2007-10-04 | Alexander Gokhman | Two-way generation tidal power plant with one-way turbines |
| CN104384166B (en) * | 2014-11-13 | 2017-01-25 | 赵立虎 | Ash storage field for coal-fired power plant and dust suppression process and device for industrial tailings |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101948274A (en) * | 2010-09-06 | 2011-01-19 | 李洪彬 | Resource comprehensive utilization type coal field covering agent, using method and special equipment thereof |
| CN108650915A (en) * | 2018-04-13 | 2018-10-16 | 江苏绿之源生态建设有限公司 | Nonferrous metal mine barren rock stockyard ecological environment treatment method |
| CN108755550A (en) * | 2018-08-22 | 2018-11-06 | 唐山睿强科技有限公司 | Railway dust suppression side oblique type locomotive |
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Inventor after: Wang Laijun Inventor after: Zhang Peimin Inventor after: Wang Shufeng Inventor after: Li Han Inventor after: Yang Yandong Inventor after: Ai Chunqi Inventor before: Wang Laijun Inventor before: Zhang Peimin Inventor before: Wang Shufeng Inventor before: Li Han Inventor before: Yang Yandong Inventor before: Ai Chunqi |