CN219239318U - Suction and desorption device for extracting lithium from shale gas produced water - Google Patents
Suction and desorption device for extracting lithium from shale gas produced water Download PDFInfo
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- CN219239318U CN219239318U CN202320858000.XU CN202320858000U CN219239318U CN 219239318 U CN219239318 U CN 219239318U CN 202320858000 U CN202320858000 U CN 202320858000U CN 219239318 U CN219239318 U CN 219239318U
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Abstract
The utility model discloses an absorbing and desorbing device for extracting lithium from shale gas produced water, belongs to the technical field of lithium ion absorbing devices, and solves the problem of low utilization rate of an absorbent in the existing lithium ion absorbing device; the shale gas treatment device comprises an adsorption tower, wherein a plurality of adsorption layers are arranged in the adsorption tower, adsorbents are filled in the adsorption layers, a spraying assembly positioned above the adsorption layers is arranged in the adsorption tower, and a water inlet pipe of the spraying assembly penetrates through the inner wall of the adsorption tower to be communicated with a waste pipe of shale gas; an acid inlet pipeline is arranged at the bottom of the adsorption tower, one end of the acid inlet pipeline is communicated with an external acid supply assembly, and the other end of the acid inlet pipeline sequentially passes through the middle parts of the adsorption layers to be communicated with a spray irrigation assembly; the bottom of the inner wall of the adsorption tower is provided with an adsorption water outlet pipeline and a desorption liquid outlet pipeline in opposite directions. The utility model utilizes the spraying device and the sprinkling device to uniformly spray the wastewater and the acid liquor on the adsorption layer respectively, so that the wastewater and the acid liquor are fully contacted with the adsorbent, and the utilization rate of the adsorbent is improved.
Description
Technical Field
The utility model relates to the technical field of lithium ion adsorption and desorption devices, in particular to an adsorption and desorption device for extracting lithium from shale gas produced water.
Background
Lithium is used as an important metal substance in new energy battery materials, and is widely used in the fields of communication, aerospace, new energy automobiles and the like. With the continuous development of new energy technology, the strategic status of lithium is increasing, and the demand of various countries in the world for lithium is increasing year by year. At present, the sources of lithium mainly comprise lithium ores, salt lakes and seawater brine, but due to the rapid increase of lithium demand in recent years, the market demands of the lithium extraction from ores and salt lakes are difficult to meet.
In the shale gas exploitation process, a large amount of produced water is generated, the quality and the components of the produced water are complex, and besides a large amount of chloride ions, calcium ions and magnesium ions, the produced water is also rich in lithium, and if the produced water is directly discharged or recycled after reaching standards, the produced water not only wastes lithium resources, but also has the risk of environmental pollution. The lithium is extracted from shale gas produced water, so that the problem of wastewater pollution can be solved, the market supply quantity of lithium products can be increased, the lithium source is enlarged, and the win-win effect of environmental protection benefit and economic benefit is realized.
In the prior art, the lithium extraction from wastewater resources mainly depends on the adsorption effect of an adsorbent, the lithium in water is firstly adsorbed on the adsorbent, and then the adsorbent is subjected to desorption treatment through desorption liquid, so that the lithium is obtained. At present, the structure of the existing adsorption device is generally simpler, only the adsorbent is used for selectively adsorbing lithium ions, and the device has high selectivity and can be recycled, but the utilization rate of the adsorbent is very low, and the lithium extraction benefit is low.
Disclosure of Invention
Aiming at the problems in the prior art, the utility model provides a device for extracting lithium from shale gas produced water, which solves the problem of low utilization rate of an adsorbent in the existing lithium ion adsorption device.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a shale gas produced water draws device that takes off of lithium, including internally mounted has the adsorption tower of a plurality of adsorbed layers, is filled with the adsorbent in the adsorbed layer, and the inside of adsorption tower is equipped with the spray assembly that is located the adsorbed layer top, and the inlet tube of spray assembly passes the inner wall of adsorption tower and communicates with the waste pipe of shale gas; an acid inlet pipeline is arranged at the bottom of the adsorption tower, one end of the acid inlet pipeline is communicated with an external acid supply assembly, and the other end of the acid inlet pipeline sequentially passes through the middle parts of the adsorption layers to be communicated with a spray irrigation assembly; the bottom of the inner wall of the adsorption tower is provided with an adsorption water outlet pipeline and a desorption liquid outlet pipeline in opposite directions.
In this scheme, adopt spray the subassembly can evenly spray the waste water of shale gas to the adsorbed layer in the adsorption tower on, make waste water and adsorbent can fully adsorb, improve the utilization ratio of adsorbent to utilize the sprinkling irrigation subassembly to spray the acidizing fluid that advances sour pipeline and carry on the adsorbed layer and desorb the waste water and put forward lithium ion and turn into desorption liquid, desorption liquid is discharged from desorption liquid outlet pipeline.
Further, the adsorption tower is a hollow cylinder, and the outside of the adsorption tower is sleeved with an insulating layer, so that heat loss of the adsorption tower can be reduced by adopting the insulating layer, and energy is saved.
Further, the acid inlet pipeline outside the adsorption tower passes through the heating device to be communicated with the acid supply assembly outside, the heating device is used for heating the acid liquid in the acid inlet pipeline, and the acid inlet pipeline passing through the adsorption layers can respectively transfer heat to each adsorption layer, so that the energy loss of the acid liquid is smaller when the acid liquid is desorbed in the adsorption layers.
Further, the adsorption water outlet pipeline and the desorption liquid water outlet pipeline are respectively provided with an adsorption control valve and a desorption liquid control valve, and the adsorption control valve and the desorption liquid control valve are adopted to conveniently control the flow of the adsorption water outlet pipeline and the desorption liquid water outlet pipeline.
Further, the spray assembly is a shower head, and the shower head is in a horn cone bucket shape.
Further, the spray irrigation component is an atomization spray nozzle, acid liquor can be converted into acid mist by the aid of the atomization spray nozzle, the acid mist drops are fine and uniform, the acid consumption is saved by 30% compared with the method of directly relying on gravity to flood irrigation and desorption, the consumption of the acid liquor is greatly reduced, the utilization rate of the acid liquor is improved, and the cost is reduced.
Further, the adsorption layer comprises two permeable partition plates fixed in the adsorption tower, an adsorbent is filled between the two permeable partition plates, the permeable partition plates are in a reverse conical shape, and a through hole matched with the acid inlet pipeline is formed at the conical top point; the adsorption layer is arranged into an inverted cone shape, so that the peripheral adsorbent can be contacted with acid mist more quickly, and the contact area between the adsorption layer with the same volume and acid can be increased, thereby improving the utilization rate of the adsorbent.
Further, a temperature sensor is arranged on the inner wall of the adsorption tower, the temperature sensor is positioned between two adjacent adsorption layers, and a probe of the temperature sensor passes through the inner wall of the adsorption tower to enter the adsorption tower; the temperature sensor is adopted to detect the temperature of the adsorption layer, so that the heating temperature of the heating device can be conveniently adjusted.
Further, the adsorbent is spherical or granular, and the particle size of the adsorbent is 1mm-5mm.
The utility model discloses a device for extracting lithium from shale gas produced water, which has the beneficial effects that:
1. the utility model utilizes the spraying device and the sprinkling device to uniformly spray the wastewater and the acid liquor on the adsorption layer respectively, so that the wastewater and the acid liquor are fully contacted with the adsorbent, and the utilization rate of the adsorbent is improved.
2. According to the utility model, the atomization nozzle is adopted to convert acid liquor into acid mist, and the acid mist is fine and uniform in liquid drops, so that the acid consumption is reduced greatly, the utilization rate of the acid liquor is improved, and the cost is reduced compared with the method of directly relying on gravity to flood irrigation and desorption to absorb energy, and the acid consumption is saved by 30%.
3. According to the utility model, the adsorption layer cavity is in an inverted cone shape, so that the peripheral adsorbent can be contacted with acid mist more quickly, and the contact area of the adsorption layer with the same volume and acid can be increased, thereby improving the utilization rate of the adsorbent.
Drawings
FIG. 1 is a schematic structural view of a shale gas produced water lithium extraction device;
FIG. 2 is a cross-sectional top view of a shale gas produced water lithium extraction device;
wherein: 1. an adsorption tower; 2. a spray assembly; 3. a spray irrigation assembly; 4. a heating device; 5. a temperature sensor; 6. an adsorption control valve; 7. a desorption liquid control valve; 8. a heat preservation layer; 9. an acid inlet pipeline; 10. adsorbing a water outlet pipeline; 11. a desorption liquid outlet pipeline; 12. an adsorption layer; 121. an adsorbent.
Detailed Description
The following description of the embodiments of the present utility model is provided to facilitate understanding of the present utility model by those skilled in the art, but it should be understood that the present utility model is not limited to the scope of the embodiments, and all the utility models which make use of the inventive concept are protected by the spirit and scope of the present utility model as defined and defined in the appended claims to those skilled in the art.
Example 1
The embodiment provides an absorbing and desorbing device for extracting lithium from shale gas produced water, which aims to solve the problem of low utilization rate of an adsorbent in the existing lithium ion adsorption device, and each component of the absorbing and desorbing device is shown in detail below.
The utility model provides a shale gas produced water draws device that takes off lithium, includes adsorption tower 1, spray subassembly 2, spray subassembly 3, heating device 4 and temperature sensor 5.
The adsorption tower 1 is hollow cylinder, and its outside cover has heat preservation 8, and heat preservation 8 of this embodiment prefers the heat preservation asbestos, adopts heat preservation 8 can reduce adsorption tower 1 heat dissipation, practices thrift the energy.
A plurality of adsorption layers 12 are uniformly arranged in the adsorption tower 1, a temperature sensor 5 is arranged on the inner wall of the adsorption tower 1, the temperature sensor 5 is positioned between two adjacent adsorption layers 12, and a probe of the temperature sensor 5 passes through the inner wall of the adsorption tower 1 to enter the adsorption tower 1; the temperature sensor 5 is used to detect the temperature of the adsorption layer 12, thereby facilitating the adjustment of the heating temperature of the heating device 4.
The type of the temperature sensor 5 of the present embodiment is, but not limited to, WZPB-230, the type of the heating device 4 is, but not limited to, PRTGD, and both the temperature sensor 5 and the heating device 4 are connected to a power source.
The spray assembly 2 is arranged in the adsorption tower 1 and is positioned above the plurality of adsorption layers 12, and a water inlet pipe of the spray assembly 2 penetrates through the inner wall of the adsorption tower 1 to be communicated with a waste pipe of shale gas.
The spray assembly 2 of this embodiment includes but is not limited to the shower head and the gondola water faucet that are commonly used, and this embodiment prefers the gondola water faucet head, and the gondola water faucet head is loudspeaker cone bucket-shaped, and the gondola water faucet head can evenly spray waste water to the adsorbed layer 12 in the adsorption tower 1, makes waste water and adsorbent 121 can fully adsorb, improves the utilization ratio of adsorbent 121.
The acid inlet pipeline 9 is arranged at the bottom of the auxiliary tower, one end of the acid inlet pipeline 9 is communicated with an external acid supply assembly, and the other end of the acid inlet pipeline 9 sequentially passes through the middle parts of the adsorption layers 12 and is communicated with the spray irrigation assembly 3.
The acid supply assembly can be a conventional acid liquor bucket with a pump, and the acid supply assembly is not protected in this embodiment, so specific connection and structure thereof will not be described in detail.
The acid inlet pipeline 9 positioned outside the adsorption tower 1 passes through the heating device 4 to be communicated with an external acid supply component, the heating device 4 is used for heating the acid liquid in the acid inlet pipeline 9, and the acid inlet pipeline 9 passing through the adsorption layers 12 can respectively transfer heat to each adsorption layer 12, so that the energy loss of the acid liquid is smaller when the acid liquid desorbs the wastewater in the adsorption layers 12.
The spray irrigation assembly 3 sprays acid liquor conveyed by the acid inlet pipeline 9 on the adsorption layer 12 to desorb and extract lithium ions from the wastewater, and the lithium ions are converted into desorption liquid, and the desorption liquid is discharged from the desorption liquid outlet pipeline 11.
The spray irrigation assembly 3 of this embodiment is the atomizer, adopts the atomizer to convert acidizing fluid into acid mist, and the tiny homogeneity of acid mist liquid drop is compared and directly relies on gravity to flood irrigation to be solved the energy-conserving 30% and use the sour volume, greatly reduces the consumption of acid, improves the utilization ratio of acidizing fluid, reduce cost.
The adsorption water outlet pipeline 10 and the desorption liquid water outlet pipeline 11 are respectively and oppositely arranged at the bottom on the inner wall of the adsorption tower 1, and the adsorption water outlet pipeline 10 and the desorption liquid water outlet pipeline 11 are respectively used for discharging the adsorbed wastewater and the desorption liquid.
The adsorption water outlet pipeline 10 and the desorption liquid water outlet pipeline 11 are respectively provided with an adsorption control valve 6 and a desorption liquid control valve 7, and the adsorption control valve 6 and the desorption liquid control valve 7 are adopted to facilitate the control of the flow of the adsorption water outlet pipeline 10 and the desorption liquid water outlet pipeline 11; the adsorption control valve 6 and the desorption liquid control valve 7 of the present embodiment include, but are not limited to, D343W-16P.
The working principle of the embodiment is as follows:
opening an adsorption control valve 6, closing a desorption liquid control valve 7, discharging the wastewater of the shale gas from the spraying assembly 2, and uniformly spraying the wastewater onto an adsorption layer 12 in the adsorption tower 1 by the spraying assembly 2 to fully adsorb the wastewater and the adsorbent 121; the wastewater flows through the adsorption layer 12 and is discharged from the adsorption outlet pipe 10.
After adsorption for a certain time, the spray assembly 2 stops spraying the wastewater, the heating device 4 is opened, the adsorption control valve 6 is closed, the desorption liquid control valve 7 is opened, the spray assembly 3 sprays the heated acid liquid to the surface of the adsorption layer 12 in a mist form, the temperature of the temperature sensor 5 is monitored, the temperature of the heating device 4 is adjusted, the acid liquid contacts with the wastewater in the adsorption layer 12 to desorb lithium ions, the desorption liquid is converted into desorption liquid, and the desorption liquid is discharged from the desorption liquid outlet pipeline 11.
Example 2
The present embodiment provides a specific mechanism for the adsorbent layer 12, which aims to increase the contact area of the waste water with the acid solution.
The adsorption layer 12 of this embodiment includes two water permeable partitions fixed inside the adsorption tower 1, the adsorbent 121 is filled between the two water permeable partitions, the adsorbent 121 is spherical or granular, and the particle size of the adsorbent 121 is 1mm-5mm.
The permeable partition plate is in a reverse conical shape, and is arranged in a reverse conical shape, so that the adsorbent 121 in the permeable partition plate can be contacted with acid mist more quickly, the contact area between the adsorption layer 12 with the same volume and acid can be increased, and the utilization rate of the adsorbent 121 is improved.
The conical top of the water permeable partition plate is provided with a through hole, so that the acid inlet pipeline 9 can conveniently pass through the plurality of water permeable partition plates through the through hole.
Although specific embodiments of the utility model have been described in detail with reference to the accompanying drawings, it should not be construed as limiting the scope of protection of the present patent. Various modifications and variations which may be made by those skilled in the art without the creative effort are within the scope of the patent described in the claims.
Claims (9)
1. The utility model provides a shale gas is produced water and is carried device that takes off lithium which characterized in that: the shale gas treatment device comprises an adsorption tower (1) internally provided with a plurality of adsorption layers (12), wherein the adsorption layers (12) are filled with adsorbents (121), a spraying assembly (2) positioned above the adsorption layers (12) is arranged in the adsorption tower (1), and a water inlet pipe of the spraying assembly (2) penetrates through the inner wall of the adsorption tower (1) to be communicated with a waste pipe of shale gas; an acid inlet pipeline (9) is arranged at the bottom of the adsorption tower (1), one end of the acid inlet pipeline (9) is communicated with an external acid supply assembly, and the other end of the acid inlet pipeline (9) sequentially passes through the middle parts of a plurality of adsorption layers (12) to be communicated with a spray irrigation assembly (3); the bottom of the inner wall of the adsorption tower (1) is provided with an adsorption water outlet pipeline (10) and a desorption liquid outlet pipeline (11) in opposite directions.
2. The shale gas production water lithium extraction device according to claim 1, wherein: the adsorption tower (1) is a hollow cylinder, and an insulating layer (8) is sleeved on the outer side of the adsorption tower.
3. The shale gas production water lithium extraction device according to claim 1, wherein: the acid inlet pipeline (9) positioned outside the adsorption tower (1) passes through the heating device (4) to be communicated with an external acid supply component.
4. The shale gas production water lithium extraction device according to claim 1, wherein: and an adsorption control valve (6) and a desorption liquid control valve (7) are respectively arranged on the adsorption water outlet pipeline (10) and the desorption liquid outlet pipeline (11).
5. The shale gas production water lithium extraction device according to claim 1, wherein: the spray assembly (2) is a shower head, and the shower head is in a horn cone bucket shape.
6. The shale gas production water lithium extraction device according to claim 1, wherein: the spray irrigation component (3) is an atomization spray nozzle.
7. The shale gas production water lithium extraction device according to claim 1, wherein: the adsorption layer (12) comprises two permeable partition plates fixed inside the adsorption tower (1), the adsorbent (121) is filled between the two permeable partition plates, the permeable partition plates are in a reverse conical shape, and through holes matched with the acid inlet pipeline (9) are formed in the conical top points.
8. The shale gas production water lithium extraction and desorption device according to claim 7, wherein: install temperature sensor (5) on the inner wall of adsorption tower (1), temperature sensor (5) are located two adjacent between adsorption layer (12), the probe of temperature sensor (5) passes the inner wall of adsorption tower (1) gets into in adsorption tower (1).
9. The shale gas production water lithium extraction and desorption device according to claim 7, wherein: the adsorbent (121) is spherical or granular, and the particle size of the adsorbent (121) is 1-5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320858000.XU CN219239318U (en) | 2023-04-17 | 2023-04-17 | Suction and desorption device for extracting lithium from shale gas produced water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320858000.XU CN219239318U (en) | 2023-04-17 | 2023-04-17 | Suction and desorption device for extracting lithium from shale gas produced water |
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| Publication Number | Publication Date |
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| CN219239318U true CN219239318U (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320858000.XU Active CN219239318U (en) | 2023-04-17 | 2023-04-17 | Suction and desorption device for extracting lithium from shale gas produced water |
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| CN (1) | CN219239318U (en) |
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- 2023-04-17 CN CN202320858000.XU patent/CN219239318U/en active Active
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