CN210528635U - Processing apparatus who contains lithium slag field - Google Patents
Processing apparatus who contains lithium slag field Download PDFInfo
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- CN210528635U CN210528635U CN201921017400.8U CN201921017400U CN210528635U CN 210528635 U CN210528635 U CN 210528635U CN 201921017400 U CN201921017400 U CN 201921017400U CN 210528635 U CN210528635 U CN 210528635U
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Abstract
The utility model discloses a processing device of a lithium-containing slag field, which comprises a stone cement retaining wall, an impermeable layer, a percolate pipe, a percolate collecting ditch, and a percolate collecting pool, a pH adjusting pool, a slow mixing pool, an inclined tube sedimentation pool and a clean water pool which are arranged in sequence; the stone cement retaining wall is arranged around the lithium-containing slag field and extends into the ground level; the anti-seepage layer is arranged on the upper surface of the lithium-containing slag field; the plurality of percolate pipes are arranged on the overground part of the stone cement retaining wall at intervals; the percolate collecting ditch is arranged below the percolate pipe; the percolate collecting tank is used for collecting the slag yard percolate flowing from the percolate collecting ditch and sending the percolate into the pH adjusting tank; the slow mixing tank is used for flocculating the slag field percolate treated by the pH adjusting tank; the inclined tube sedimentation tank is used for settling the slag field percolate treated by the slow mixing tank. The utility model discloses reach control, solidification and contain lithium slag field, do not let the pollutant diffusion, carry out the processing up to standard to its filtration liquid and discharge.
Description
Technical Field
The utility model belongs to the technical field of soil pollution administers, concretely relates to solidify, prevent seepage to containing lithium slag field and handle, reach the device that handles to filtration liquid.
Background
Lithium and its compound are new materials required by modern scientific and technological development, will become one of the future energy sources of human beings, and lithium hydroxide is one of the most important lithium compounds, and has wide application in the fields of chemical industry, national defense, batteries, automobiles, and the like. The lithium hydroxide is often prepared industrially by limestone roasting, which mainly comprises the steps of mixing lepidolite with limestone, adding water, mixing, roasting, leaching, washing slag, concentrating, purifying, crystallizing and the like. And simultaneously, a large amount of slurry tailings, namely lithium-containing slag, is generated. Because production and economy are pursued before, and no proper technology is used for disposing the slag yard, a plurality of slag yards which are not disposed exist, the surrounding environment is seriously polluted, and the concept of environmental protection and scientific development advocated by the current state is not met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome not enough and the defect mentioned in the above background art, provide a processing apparatus who contains lithium slag field, solidify, the prevention of seepage is handled containing lithium slag field to pollution abatement.
In order to solve the technical problem, the utility model provides a technical scheme does:
a processing device for a lithium-containing slag field comprises a stone cement retaining wall, an impermeable layer, a percolate pipe, a percolate collecting ditch, and a percolate collecting pool, a pH adjusting pool, a slow mixing pool, an inclined tube sedimentation pool and a clean water pool which are sequentially arranged;
the stone cement retaining wall is arranged around the lithium-containing slag field and extends into the ground level; the anti-seepage layer is arranged on the upper surface of the lithium-containing slag field;
the plurality of percolate pipes are arranged on the overground part of the stone cement retaining wall at intervals; the percolate collecting ditch is arranged below the percolate pipe and used for collecting the slag field percolate flowing out of the percolate pipe; the percolate collecting tank is used for collecting the slag yard percolate flowing from the percolate collecting ditch and sending the percolate into the pH adjusting tank;
the pH adjusting tank is used for adjusting the pH value of the slag yard percolate sent from the percolate collecting tank; the slow mixing tank is used for flocculating the slag field percolate treated by the pH adjusting tank; the inclined tube sedimentation tank is used for settling the slag field leachate treated by the slow mixing tank; and the clean water tank is used for discharging the slag field percolate treated by the inclined tube sedimentation tank.
Furthermore, the impermeable layer sequentially consists of a clay layer, a non-woven geotextile, an HDPE film, a non-woven geotextile and an HSPE composite geotechnical drainage grid from bottom to top.
Furthermore, planting soil is laid on the impermeable layer, a green grassland is arranged on the planting soil, and a rainwater collection ditch for collecting and discharging rainwater is arranged.
Furthermore, the pipe wall of the part of the percolate pipe, which is deep into the lithium slag, is provided with an opening.
Furthermore, the leachate collecting tank is provided with a lift pump for pumping leachate into the pH adjusting tank.
Further, a sulfuric acid medicine tank and a sulfuric acid pump for adding sulfuric acid to the pH adjusting tank are also arranged.
Further, still be equipped with PAM medicine groove and be used for adding the PAM pump that mixes the pond slowly with the PAM medicament.
Further, a pH adjusting tank and a slow mixing tank are provided with stirring devices.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses from fixed, the filtration liquid drainage of slag yard and handle, aspects such as the prevention of seepage of slag yard top layer prevent weathering, reach control, solidification and contain lithium slag yard, do not let the pollutant diffusion, carry out treatment up to standard to its filtration liquid and discharge, have extensive environmental protection, economy, social value, have extensive spreading value in the aspect of dealing with leaving over lithium tailing, stock dump.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a treatment apparatus according to the present invention;
fig. 2 is a schematic view of the barrier layer structure.
Wherein: 1. a percolate collecting ditch; 2. a stone cement retaining wall; 3. a percolate tube; 4. a rainwater collection ditch; 5. greening grasslands; 6. planting soil; 7. an impermeable layer; 71. a clay layer; 72. non-woven geotextile; 73. a HDPE film; 74. HSPE composite geotechnical drainage grid; 8. a lithium-containing slag field; 9. a leachate conduit; 10. a percolate collecting tank; 11. lifting a pump water pipe; 12. a sulfuric acid medicine tank; 13. a lift pump; 14. a pH adjusting tank; 15. a slow mixing tank; 16. an inclined tube sedimentation tank; 17. sulfuric acid pumps and pipelines; 18. PAM medicine groove; 19. PAM pump and pipeline; 20. a chute assembly; 21. a clean water tank; 22. and a discharge port.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the following specific embodiments.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.
As shown in fig. 1, the utility model discloses a processing apparatus who contains lithium slag field of embodiment, including filtration liquid collection ditch 1, stone cement barricade 2, rainwater collection ditch 4, afforestation meadow 5, planting soil 6, barrier layer 7, filtration liquid collecting pit 10, sulphuric acid medicine groove 12, pH adjusting tank 14, slow pond 15, pipe chute sedimentation tank 16, PAM medicine groove 18, clean water basin 21 slowly.
And the stone cement retaining wall 2 is built around the lithium-containing slag field 8, the stone cement retaining wall 2 extends into the ground level, and preferably, the stone cement retaining wall extends into the ground for at least 4m to prevent the stone cement retaining wall from being transferred by slag and being washed by rainwater. The part of the wall body below the ground can be made into a step type, so that the anti-overturning stability of the wall body is improved.
The upper surface of the lithium-containing slag field 8 is provided with an impermeable layer 7, so that excessive leachate caused by rainwater washing is prevented from polluting the surrounding environment. Preferably, as shown in fig. 2, the impermeable layer 7 is composed of a clay layer 71, a non-woven geotextile 72, an HDPE film 73, a non-woven geotextile 72, and an HSPE composite geotechnical drainage grid 74 from bottom to top, and the grid can prevent penetration and water leakage of gravel, glass, and hard sundries to the impermeable layer, so as to ensure the impermeable effect. Preferably, the clay layer thickness is not less than 50 cm. Certain thickness planting soil 6 is laid on the barrier layer 7, and a green grassland 5 is arranged on the planting soil 6 to prevent soil weathering. A rainwater collecting ditch 4 is formed in the greening part of the slag yard and used for collecting and discharging rainwater, so that the rainwater does not enter the slag yard and the water amount of leachate in the slag yard is not increased.
The aboveground part of the stone cement retaining wall 2 is provided with a percolation liquid pipe 3 according to a certain distance and a slope-releasing angle. Preferably, a percolate tube 3 is arranged at an interval of not less than 1.5m, the slope of the percolate tube 3 is 3% -4%, and the diameter is 10cm to 15 cm. The percolation liquid pipe 3 goes deep into the lithium slag part, holes are formed in the pipe wall, the percolation effect is enhanced, and the pipe opening part is blocked by aggregate to prevent the blockage by the lithium slag.
A percolate collecting ditch 1 is arranged below the percolate pipe 3 so as to collect and discharge percolate. The slag yard percolate flows into the percolate collecting ditch 1 through the percolate pipe 3 and enters the percolate collecting pool 10 through the percolate guide pipe 9.
The leachate containing the lithium slag field has strong corrosion to peripheral water and soil due to high pH value, needs to be treated, adjusts the pH value of the wastewater to a normal range, and then reaches the discharge standard.
The percolate collecting tank 10 is provided with a lifting pump 13, and percolate is sequentially pumped into a pH adjusting tank 14, a slow mixing tank 15, an inclined tube sedimentation tank 16 and a clean water tank 21 through a lifting pump water pipe 11 and then is discharged outside through a discharge port 22.
The sulfuric acid drug tank 12 is provided with a sulfuric acid pump and a pipeline 17, and can send sulfuric acid to the pH adjusting tank 14, and the dosage of the pharmaceutical agent is controlled by a pH meter and automatically controlled. The pH adjusting tank 14 is provided with a stirrer and a pH meter.
The tube settler 16 is equipped with a tube assembly 20.
In one embodiment, the lithium-containing slag field is treated as follows:
1. investigating a slag field to obtain information such as forming reason, time, quantity, field size, side slope, landfill depth, percolate flow and pH, pollution condition to the periphery and the like;
2. the stone cement retaining wall 2 extends into the ground for 4m, so that the protection of the slag field is ensured, the diffusion is prevented, and the overall stability of the slag field is improved; the top width of the wall body is not less than 50cm, and the bottom width is 1/3 about the height of the wall; the part under the ground is made into a step type. Inserting a percolation liquid pipe 3 every 1.5m on the overground part of the wall surface; the length of the pipe is not shorter than 1.5m, and the pipe diameter is not smaller than 10cm and not larger than 15 cm; the percolation liquid pipe 3 extends out of the stone cement retaining wall part by no less than 30cm and penetrates into the lithium slag part, the pipe wall is provided with holes, the aperture is not more than 10mm and not less than 5mm, the pipe orifice part is plugged by aggregate with the particle size of not less than 20mm and not more than 40mm, and the length is not less than 20 cm; a percolate collecting ditch 1 is arranged below the percolate pipe 3, the height of the collecting ditch is not less than 40cm, and the width of the collecting ditch is not less than 50 cm;
3. the upper surface of the lithium slag field is properly flattened, so that obvious protruding parts are reduced, and the construction of the impermeable layer 7 is facilitated; the impermeable layer consists of a clay layer 71, a non-woven geotextile 72, an HDPE film 73, a non-woven geotextile 72 and an HSPE composite geotechnical drainage grid 74, wherein the thickness of the clay layer is not less than 50 cm; planting soil 6 with a certain thickness is paved on the impermeable layer 7, and the thickness is not less than 40 cm; greening such as grassland is arranged on the planting soil 6; the greening part of the slag yard is provided with a rainwater collecting ditch 4, the height of the collecting ditch is not less than 40cm, the width of the collecting ditch is not less than 50cm, so that the rainwater can be collected, discharged and shunted, thereby blocking the rainwater from carrying out the slag yard and reducing the percolate of the slag yard;
4. the slag yard percolate is collected and enters a pH adjusting tank 14, and the pH adjusting tank 14 adjusts the water quality and the water quantity of the percolate. Through a wastewater treatment system, the pH value of water is controlled to be 6-9 to reach the discharge standard. Starting a lift pump 13, pumping the percolate to a pH adjusting tank 14, starting a stirrer, starting a sulfuric acid pump, automatically controlling the sulfuric acid pump according to a pH detection result, and setting a high point and a low point; the pH is higher than 8.0, the sulfuric acid pump is started and is lower than 6.5, and the sulfuric acid pump is stopped. The wastewater with the adjusted pH passes through a slow mixing tank 15, a PAM solution is added into the slow mixing tank through a PAM pump, and the dosage of the medicament is adjusted according to the flocculation effect. The wastewater is discharged out of the clean water tank 21 after being precipitated in the inclined tube precipitation tank 16.
The foregoing is illustrative of the preferred embodiment of the present invention and is not to be construed as limiting the invention in any way. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.
Claims (8)
1. A processing device of a lithium-containing slag field is characterized by comprising a stone cement retaining wall (2), an impermeable layer (7), a percolate pipe (3), a percolate collecting ditch (1), and a percolate collecting pool (10), a pH adjusting pool (14), a slow mixing pool (15), an inclined tube sedimentation pool (16) and a clean water pool (21) which are sequentially arranged;
the stone cement retaining wall (2) is arranged around the lithium-containing slag field and extends into the ground level; the impermeable layer (7) is arranged on the upper surface of the lithium-containing slag field;
the plurality of percolate pipes (3) are arranged on the overground part of the stone cement retaining wall (2) at intervals; the percolate collecting ditch (1) is arranged below the percolate pipe (3) and is used for collecting the slag field percolate flowing out of the percolate pipe (3); the percolate collecting tank (10) is used for collecting the slag field percolate flowing in from the percolate collecting ditch (1) and sending the percolate into the pH adjusting tank (14);
the pH adjusting tank (14) is used for adjusting the pH value of the slag yard percolate sent from the percolate collecting tank (10); the slow mixing tank (15) is used for flocculating the slag field percolate treated by the pH adjusting tank (14); the inclined tube sedimentation tank (16) is used for settling the slag field percolate treated by the slow mixing tank (15); the clean water tank (21) is used for discharging the slag field percolate treated by the inclined tube sedimentation tank (16).
2. The lithium-containing slag field treatment device according to claim 1, characterized in that the impermeable layer (7) consists of a clay layer (71), a non-woven geotextile (72), an HDPE film (73), a non-woven geotextile (72) and an HSPE composite geotextile drainage grid (74) in sequence from bottom to top.
3. The processing device of the lithium-containing slag field according to claim 1 or 2, characterized in that planting soil (6) is laid on the impermeable layer (7), a green grass land (5) is arranged on the planting soil (6), and a rainwater collecting ditch (4) for collecting and discharging rainwater is arranged.
4. The processing plant containing lithium slag field according to claim 1, characterized in that the wall of the percolation pipe (3) is provided with openings in the part where it penetrates into the lithium slag.
5. The processing plant for lithium-containing slag fields according to claim 1, characterized in that the percolate collection tank (10) is fitted with a lift pump (13) for pumping the percolate into a pH regulating tank (14).
6. The processing plant for lithium-containing slag fields according to claim 1, characterized in that a sulphuric acid tank (12) and a sulphuric acid pump for feeding sulphuric acid to the pH adjusting tank (14) are also provided.
7. The processing plant for lithium-containing slag fields according to claim 1, characterized in that a PAM tank (18) and a PAM pump for adding a PAM agent to the slow mixing tank (15) are also provided.
8. The processing plant for lithium-containing slag fields according to claim 1, characterized in that the pH adjusting tank (14) and the slow mixing tank (15) are provided with stirring means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921017400.8U CN210528635U (en) | 2019-07-02 | 2019-07-02 | Processing apparatus who contains lithium slag field |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921017400.8U CN210528635U (en) | 2019-07-02 | 2019-07-02 | Processing apparatus who contains lithium slag field |
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| CN210528635U true CN210528635U (en) | 2020-05-15 |
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| CN201921017400.8U Active CN210528635U (en) | 2019-07-02 | 2019-07-02 | Processing apparatus who contains lithium slag field |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110372123A (en) * | 2019-07-02 | 2019-10-25 | 深圳粤鹏环保技术股份有限公司 | A kind of processing unit of the cinder field containing lithium |
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2019
- 2019-07-02 CN CN201921017400.8U patent/CN210528635U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110372123A (en) * | 2019-07-02 | 2019-10-25 | 深圳粤鹏环保技术股份有限公司 | A kind of processing unit of the cinder field containing lithium |
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