CN112030007A - Electrochemical desorption method salt lake lithium extraction is with desorption groove cell body structure - Google Patents
Electrochemical desorption method salt lake lithium extraction is with desorption groove cell body structure Download PDFInfo
- Publication number
- CN112030007A CN112030007A CN202010936233.8A CN202010936233A CN112030007A CN 112030007 A CN112030007 A CN 112030007A CN 202010936233 A CN202010936233 A CN 202010936233A CN 112030007 A CN112030007 A CN 112030007A
- Authority
- CN
- China
- Prior art keywords
- frame body
- water distribution
- tank
- deintercalation
- anode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
- C22B26/10—Obtaining alkali metals
- C22B26/12—Obtaining lithium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention relates to a de-intercalation tank body structure for extracting lithium from a salt lake by an electrochemical de-intercalation method, which is formed by extruding two end plates and a plurality of negative and positive de-intercalation tank units by pressure, wherein the negative and positive de-intercalation tank units are positioned between the two end plates, and one of the two end plates is provided with a plurality of liquid through holes allowing liquid to pass through. The desorption groove body structure for extracting lithium from the salt lake by the electrochemical desorption method is simple to install, and ensures that liquid can respectively enter different cavities from the pipelines formed by overlapping the frame bodies after the pressure is exerted by overlapping a plurality of negative and positive desorption groove units, so that the pipelines can be reduced, the installation is quick, the liquid is discharged cleanly and quickly, the liquid flows uniformly in the cavity of the groove body unit, the liquid concentration is uniform, and the industrialization is realized efficiently.
Description
Technical Field
The invention belongs to the technical field of electrochemistry, and particularly relates to a desorption groove body structure for extracting lithium from a salt lake by an electrochemical desorption method.
Background
With the consumption of non-renewable energy, the development and utilization of new energy is a necessary trend. The new energy automobile, as a typical representative of the development and utilization of new energy, has been rapidly developed in recent years, and will eventually surpass the market share of the conventional fuel automobile, and gradually complete the replacement of the fuel automobile. The market demand of lithium as an essential energy metal for a new energy automobile power system will also increase rapidly, and the efficient, clean and low-cost exploitation of lithium resources is crucial to the sustainable development of the new energy automobile industry.
The lithium resource exists in nature mainly in the form of ore and brine, wherein most of the lithium resource exists in the brine, particularly salt lake brine, and the reserve accounts for more than 80% of the total reserve of the lithium resource. Along with the exploitation of high-quality lithium ore resources, the requirements of the current process that the high-grade ores are less and the cost for extracting lithium from the ores is higher are met. Compared with the extraction of lithium from ore, the lithium in brine has rich lithium resource reserves, and lithium exists in an ion form, so that the lithium extraction cost has natural advantages. However, besides lithium, brine usually contains symbiotic cations such as sodium, potassium, magnesium, calcium and the like, and only a few salt lake brine has a low magnesium-lithium ratio (6.4 in the case of the salt lake of chile atacama), and most of the salt lake brine has a magnesium-lithium ratio of more than 20, even up to 1825 (the khar salt lake). Mg (magnesium)2+With Li+The lithium-ion-containing bittern is positioned at the diagonal position of the periodic table of elements, the chemical properties of the bittern are very similar as known by the diagonal rule, and the efficient separation is difficult, so that the development and utilization of lithium resources in the bittern are severely restricted, and the extraction of lithium from the bittern with high magnesium-lithium ratio is a worldwide problem. Researchers adopt technologies such as a precipitation method, a carbonization method, a calcination method, a solvent extraction method and the like to extract lithium resources in brine, but most of the methods have complex processes, high production cost, higher requirements on equipment, low purity of final products and are not beneficial to large-scale production.
In order to solve the problem that salt lake brine with high magnesium-lithium ratio is difficult to economically and efficiently extract cleanly, CN 102382984A provides a new technology for extracting lithium from the salt lake by an electrochemical de-intercalation method, namely, the working principle of an aqueous lithium battery is utilized, a de-lithiated battery anode material having a memory effect on lithium ions is taken as an electrode material, salt lake brine is taken as a cathode electrolyte, a magnesium-free supporting electrolyte is taken as an anode electrolyte, and thus an electrochemical de-intercalation system is formed to realize lithium extraction. In order to solve the problem of industrial production, a groove body, called as a desorption groove, needs to be provided, brine is discharged or lithium-containing solution and lithium-enriched solution are recycled, and the process of extracting lithium from a salt lake by an electrochemical desorption method is completed.
The present invention has been made in view of the above circumstances.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a desorption groove body structure for extracting lithium from a salt lake by an electrochemical desorption method.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an electrochemistry is taken off and is inlayed method salt lake lithium extraction with taking off and inlay groove cell body structure, take off and inlay the groove cell body structure and form through the pressure extrusion by two end plates and a plurality of negative and positive take off and inlay the groove unit, a plurality of negative and positive take off and inlay the groove unit and be located between two end plates, two end plates in be provided with a plurality of logical liquid holes that allow liquid to pass through on one end plate.
Furthermore, the negative and positive pole disengagement and engagement groove unit is formed by oppositely installing and placing a negative pole disengagement and engagement groove frame body and a positive pole disengagement and engagement groove frame body, the negative pole disengagement and engagement groove frame body has the same structure with the positive pole disengagement and engagement groove frame body, an ionic membrane is placed between the negative pole disengagement and engagement groove frame body and the positive pole disengagement and engagement groove frame body, the negative pole disengagement and engagement groove frame body or the positive pole disengagement and engagement groove frame body is internally provided with a groove body unit cavity, and the negative pole disengagement and engagement groove frame body or the positive pole disengagement and engagement groove frame body is communicated with the groove body unit cavity through a pipeline.
The length and the width of the ionic membrane are both larger than those of the cathode de-intercalation tank frame body or the anode de-intercalation tank frame body, so that liquid can be ensured to pass through the ionic membrane.
Furthermore, the cathode de-intercalation tank frame body or the anode de-intercalation tank frame body is of a rectangular structure or a square structure.
Furthermore, the cathode de-embedding groove frame body or the anode de-embedding groove frame body is composed of two transverse frames and two vertical frames.
The thickness of each cathode de-embedding groove frame body or the thickness of the transverse frame and the vertical frame of the anode de-embedding groove frame body are both less than or equal to 2-5cm, and the size of the internal space of the cavity is 600-1500 mm.
Furthermore, each corner of the cathode de-embedding groove frame body or the anode de-embedding groove frame body is respectively provided with a hole.
Furthermore, two holes on the transverse frame of the cathode de-embedding groove frame body or the anode de-embedding groove frame body are positioned on the same horizontal line, and two holes on the vertical frame are respectively positioned on the same vertical line.
The plurality of male and female disengagement and embedding groove units are overlapped to apply pressure, so that liquid can respectively enter different cavities from the pipelines formed by overlapping the frame bodies, the pipelines can be reduced, and the installation is quick.
Furthermore, the cavity of the groove body unit is formed by hot pressing of elastic PVC materials.
It is ensured that under a certain pressure, no gasket is used for sealing between each cavity, and no liquid leaks from the cavity.
Furthermore, the top of the cavity of the tank body unit is provided with a vent hole, and the diameter of the vent hole is 10-20 mm.
The purpose of adopting above-mentioned air vent is, can make air discharge when liquid gets into, and when putting liquid, air gets into, does not form the vacuum.
Furthermore, a support leg for fixing the polar plate is fixedly arranged on one side of the cathode de-embedding groove frame body or the side of the anode de-embedding groove frame body connected with the groove body unit cavity.
Furthermore, the shape of the supporting foot is semicircular, trapezoidal or rectangular.
Furthermore, two support legs are arranged on each vertical frame, and the support legs are symmetrically arranged with the center line of the cathode de-embedding groove frame body or the anode de-embedding groove frame body.
The width of the support leg is 10-1200mm, and the height of the support leg is 10-20 mm.
And semi-circular, trapezoidal and rectangular grooves and the like are reserved at a small half position in the thickness direction of the inner sides of the frame bodies at two sides in each cathode de-embedding groove frame body or anode de-embedding groove frame body and are used for fixing electrodes, cover plates are made to cover the electrode on the electrode, the side frames are guaranteed to be flat and free of defects integrally, and the coated electrodes are fixed and guaranteed to be positioned at the center position.
Furthermore, a water distribution pipe is arranged on the liquid inlet side of the cavity of the trough body unit, and a water collecting pipe is arranged on the liquid outlet side.
Furthermore, the water distribution pipe is provided with a plurality of openings with the aperture gradually increasing from the near water side to the far water side or a plurality of openings with the same aperture and the distribution density gradually increasing from small to large, and the water collection pipe is provided with a plurality of openings with the aperture gradually decreasing from the near water side to the far water side or a plurality of openings with the same aperture and the distribution density gradually decreasing from large to small.
Further, the shape of the opening is a circular hole, an elliptical hole or a rectangular hole.
Furthermore, the cathode de-intercalation tank frame body or the anode de-intercalation tank frame body is connected with a plate electrode through a bolt, the plate electrode is fixedly connected with a water distribution system, and the water distribution system is positioned between the plate electrode and the ionic membrane.
The water distribution system of the invention is of a frame structure, can realize relatively uniform cavity space, firstly ensures uniform electric field and good reaction consistency, and in addition, ensures small stress and stretching of the ionic membrane and prolongs the service life.
The water distribution system is of a frame structure consisting of a plurality of water distribution transverse strips and a plurality of water distribution vertical strips, adjacent water distribution vertical strips are spliced to form the water distribution system, and two ends of one water distribution transverse strip are respectively spliced on the two water distribution vertical strips.
Furthermore, one end of each vertical water distribution strip is provided with a plug connector, and the other end of each vertical water distribution strip is correspondingly provided with a plug hole matched with the plug connector, so that the adjacent vertical water distribution strips are plugged.
Furthermore, a plurality of fixing holes are uniformly formed in the vertical water distribution strip, fixing columns are arranged at two ends of the transverse water distribution strip, and the fixing columns are inserted into the fixing holes so that the vertical water distribution strip is inserted into the transverse water distribution strip.
Furthermore, a bolt hole is arranged on the vertical water distribution strip so that the water distribution system is fixedly connected to the electrode plate.
Furthermore, the fixing holes are hexagonal holes, and two ends of the water distribution transverse bar are hexagonal prisms.
Furthermore, one side surface of the water distribution vertical bar connected with the electrode plate is of a plane structure, and the other opposite side surface is in arc-shaped wave shape and is contacted with the ionic membrane.
Furthermore, a plurality of holes allowing liquid to flow through are arranged on the water distribution cross bars, and the holes allowing liquid to flow through are square holes or round holes.
Furthermore, the water distribution horizontal strips are flat along the width direction, the edges of the water distribution horizontal strips have certain radian, and the water distribution horizontal strips can rotate on the water distribution vertical strips at different angles.
The water distribution and the supporting structure can ensure that the volume of each groove unit cavity is balanced, the liquid is smooth and uniform, and the liquid concentration is uniform.
Furthermore, one corner of the cathode de-embedding groove frame body or the anode de-embedding groove frame body is communicated with an external pipeline through a pipeline, and the other corner diagonally opposite to the corner is communicated with the external pipeline through a pipeline, and the external pipeline is communicated with the adjacent cathode de-embedding groove frame body or the adjacent anode de-embedding groove frame body.
In the invention, the adjacent cathode de-intercalation tank frame bodies and the anode de-intercalation tank frame bodies are respectively communicated with the corresponding cathode de-intercalation tank frame bodies and the anode de-intercalation tank frame bodies through external pipelines, and liquid enters each cathode de-intercalation tank frame body or each anode de-intercalation tank frame body through the pipeline.
Furthermore, the cathode de-embedding groove frame body or the transverse frame at the upper end or the lower end of the anode de-embedding groove frame body is fixedly provided with a lead-out wiring electrode.
The electrode is arranged on one side of the cathode de-embedding groove frame body or the inside of the anode de-embedding groove frame body and is used for being connected with the electrode plate conductive cut-off body to lead out current, the outside of the electrode is used for being connected with a power supply to provide power for a polar plate power supply, and the electrode is placed between the cathode de-embedding groove and the anode de-embedding groove to apply direct current voltage.
Furthermore, the cathode de-intercalation tank frame body or the transverse frame surface at the lower end of the anode de-intercalation tank frame body is arranged at an angle alpha from the water inlet side to the water outlet side.
Further, the angle alpha is 1-10 degrees.
When the alpha angle is adopted for facilitating liquid exchange, the solution can be quickly discharged completely by means of liquid difference.
Furthermore, the lowest position of the middle position of the transverse frame at the lower end of the cathode de-embedding groove frame body or the anode de-embedding groove frame body is provided with a discharge hole, so that the two opposite sides form an obtuse angle, and the solution can be discharged thoroughly.
Compared with the prior art, the invention has the beneficial effects that:
the desorption groove body structure for extracting lithium from the salt lake by the electrochemical desorption method is simple to install, and ensures that liquid can respectively enter different cavities from the pipelines formed by overlapping the frame bodies after the pressure is exerted by overlapping a plurality of negative and positive desorption groove units, so that the pipelines can be reduced, the installation is quick, the liquid is discharged cleanly and quickly, the liquid flows uniformly in the cavity of the groove body unit, the liquid concentration is uniform, and the industrialization is realized efficiently.
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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is an assembly diagram of a groove body structure of a desorption groove for extracting lithium from a salt lake by an electrochemical desorption method according to the invention;
FIG. 2 is a schematic structural diagram of a male-female disengagement and insertion groove unit according to the present invention;
FIG. 3 is a schematic structural view of a cathode de-intercalation tank frame or an anode de-intercalation tank frame according to the present invention;
FIG. 4 is a schematic structural view of a cathode de-intercalation tank frame or an anode de-intercalation tank frame according to another embodiment of the present invention;
FIG. 5 is a schematic structural view of a cathode de-intercalation tank frame or an anode de-intercalation tank frame according to another embodiment of the present invention;
FIG. 6 is a cross-sectional view taken at A-A in FIG. 5;
FIG. 7 is a schematic view of a water distributor according to the present invention;
FIG. 8 is a schematic view showing another structure of a water distribution pipe according to the present invention;
FIG. 9 is a schematic structural view of a water collecting pipe according to the present invention;
FIG. 10 is a schematic view of another water collecting pipe according to the present invention;
FIG. 11 is an assembly view of the water distribution system of the present invention;
FIG. 12 is a front view of the water distribution vertical bar in the present invention;
FIG. 13 is a plan view of the vertical water distribution strips of the present invention;
FIG. 14 is a front view of the water distribution horizontal bar in the present invention;
fig. 15 is a left or right view of the water distribution horizontal bar in the present invention.
Reference numerals
1-a first end plate, 2-a second end plate, 21-a liquid through hole, 3-an ionic membrane, 31-an ionic membrane hole, 4-a cathode de-embedding groove frame body, 41-a first transverse frame, 42-a second transverse frame, 43-a first vertical frame, 44-a second vertical frame, 45-a groove body unit cavity, 46-a support leg, 47-a pipeline, 48-an external pipeline, 49-a leading-out wiring electrode, 401-a first hole, 402-a second hole, 403-a third hole, 404-a fourth hole, 5-an anode de-embedding groove frame body, 6-an opening hole, 7-a water distribution vertical bar, 71-a bolt hole, 72-a fixed hole, 73 plug, 74-a plug hole, 8-a water distribution transverse bar, 81-a hole allowing liquid to flow through, and 82-a fixed column.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
As shown in fig. 1 to 15, the invention discloses a de-intercalation groove body structure for extracting lithium from a salt lake by an electrochemical de-intercalation method, which is formed by two end plates and a plurality of negative and positive de-intercalation groove units through pressure extrusion, wherein the negative and positive de-intercalation groove units are positioned between the two end plates, one of the two end plates is provided with a plurality of liquid through holes 21 allowing liquid to pass through, wherein the two end plates are respectively a first end plate 1 and a second end plate 2, and the four corners of the second end plate 2 are provided with the liquid through holes 21.
Example 1
As shown in fig. 1, the cathode and anode disengagement and engagement groove units in this embodiment are explained by 2, and different numbers of cathode and anode disengagement and engagement groove units can be set according to actual electrolysis requirements, the cathode and anode disengagement and engagement groove unit is formed by oppositely installing and placing a cathode disengagement and engagement groove frame 4 and an anode disengagement and engagement groove frame 5, the cathode disengagement and engagement groove frame 4 and the anode disengagement and engagement groove frame 5 have the same structure, an ionic membrane 3 is placed between the cathode disengagement and engagement groove frame 4 and the anode disengagement and engagement groove frame 5, a groove unit cavity 45 is arranged inside the cathode disengagement and engagement groove frame 4 or the anode disengagement and engagement groove frame 5, and the cathode disengagement and engagement groove frame 4 or the anode disengagement and engagement groove frame 5 is connected with the groove unit cavity 45 through a pipeline 47. The cathode extracting frame 4, the anode extracting frame and the tank unit cavity 45 are all hollow structures, and liquid is allowed to flow in the tank unit cavity.
In a further scheme, the length and the width of the ionic membrane 3 are both larger than those of the cathode de-intercalation tank frame body 4 or the anode de-intercalation tank frame body 5, so that liquid can be ensured to pass through the ionic membrane 3. As shown in fig. 2 and 3, the cathode de-embedding groove frame 4 and the anode de-embedding groove frame 5 are rectangular structures, the cathode de-embedding groove frame 4 and the anode de-embedding groove frame 5 are composed of two transverse frames and two vertical frames, the two transverse frames are a first transverse frame 41 and a second transverse frame 42, the two vertical frames are a first vertical frame 43 and a second vertical frame 44, the thickness of the transverse frame and the vertical frame of each of the cathode de-embedding groove frame 4 and the anode de-embedding groove frame 5 is less than or equal to 2-5cm, and the size of the internal space of the cavity is 600-1500 mm.
Further, as shown in fig. 3, each corner of the cathode de-intercalation tank frame 4 and the anode de-intercalation tank frame 5 is respectively provided with a hole, which is a first hole 401, a second hole 402, a third hole 403 and a fourth hole 404, the cathode-anode de-intercalation tank unit is formed by oppositely installing and placing a cathode de-intercalation tank frame 4 and an anode de-intercalation tank frame 5, because the cathode de-intercalation tank frame 4 and the anode de-intercalation tank frame 5 have the same structure, the opposite installation specifically means that one frame is turned 180 ° and is overlapped and pressed with another frame, specifically, the first hole 401, the second hole 402, the third hole 403 and the fourth hole 404 of one frame are respectively overlapped with the second hole 402, the first hole 401, the fourth hole 404 and the third hole 403 of another frame, the first hole 401 and the second hole 402 of the cathode de-intercalation tank frame 4 or the anode de-intercalation tank frame 5 are on the same horizontal line, the third hole 403 and the fourth hole 404 are also simultaneously on the same horizontal line, the first hole 401 and the fourth hole 404 are also on the same vertical line, and the second hole 402 and the third hole 403 are also on the same vertical line. Four through-liquid holes 21 and four holes of first hole 401, second hole 402, third hole 403 and fourth hole 404 on the second end plate 2 in this embodiment are in one-to-one correspondence, negative pole take off the caulking groove framework 4 or positive pole take off the caulking groove framework 5 pass through pipeline 47 with cell body unit cavity 45 communicate, be provided with on the ionic membrane 3 with four ionic membrane holes 31 that correspond with first hole 401, second hole 402, third hole 403 and fourth hole 404, thereby a plurality of negative and positive take off the caulking groove unit in this embodiment and overlap and apply pressure after guaranteeing that liquid can get into different cavitys respectively from the pipeline that the framework overlaps the formation, can reduce the pipeline like this, the installation is quick.
In this embodiment, as shown in fig. 2 and 3, the cathode detachment groove frame 4 or the anode detachment groove frame 5 is internally provided with a groove unit cavity 45, the cathode detachment groove frame 4 or the anode detachment groove frame 5 is communicated with the groove unit cavity 45 through a pipeline 47, liquid passes through four holes on the cathode detachment groove frame 4 or the anode detachment groove frame 5 and enters the groove unit cavity 45 through the pipeline 47, the groove unit cavity 45 is formed by hot pressing of an elastic PVC material, and it can be ensured that under a certain pressure, no gasket is used for sealing between each cavity, and no liquid leaks from between the cavities. The top of the tank body unit cavity 45 is provided with an air vent, the diameter of the air vent is 10-20mm, the air vent is arranged to discharge air when liquid enters the tank body unit cavity 45, and vacuum is not formed if air enters the tank body unit cavity during liquid discharge.
Example 2
As shown in fig. 5 and 6, the structure of the cathode de-intercalation tank frame 4 or the anode de-intercalation tank frame 5 in this embodiment is that one corner of the cathode de-intercalation tank frame 4 or the anode de-intercalation tank frame 5 is communicated with an external pipeline 48 through a pipeline 47, and the other corner diagonally opposite to the corner is communicated with the external pipeline 48 through a pipeline 47, wherein the pipeline 47 is communicated with the tank unit cavity 45, so that the liquid of a required electrode enters the tank unit cavity 45 through the external pipeline 48 through the pipeline 47 for reaction, the external pipeline 48 is communicated with the adjacent cathode de-intercalation tank frame 4 or the anode de-intercalation tank frame 5, and the liquid treated by each frame finally flows into the buffer tank of the respective solution through the external pipeline 48 for continuous circulation.
In a further scheme, the cathode de-embedding groove frame body 4 or the anode de-embedding groove frame body 5 is fixedly provided with support legs 46 for fixing the pole plate at one side connected with the groove body unit cavity 45, two support legs 46 are arranged on each vertical frame, the support legs 46 are symmetrically arranged with the center line of the cathode de-embedding groove frame body 4 or the anode de-embedding groove frame body 5, as shown in fig. 6, the support legs are also rectangular in shape and can also be semicircular or trapezoidal. The width of the support leg is 10-1200mm, and the height of the support leg is 10-20 mm. Semi-circle, trapezoid and rectangular grooves are reserved on the inner sides of the frame bodies on two sides in the thickness direction of each cathode de-embedding groove frame body 4 or the anode de-embedding groove frame body 5 in a small half of the thickness direction, and are used for fixing electrodes and covering a cover plate to ensure that the side frames are flat and free of defects integrally, and the coated electrodes are fixed and are ensured to be in the central position.
In a further scheme, a lead-out wiring electrode 49 is fixedly arranged on a transverse frame at the upper end or the lower end of the cathode de-embedding groove frame body 4 or the anode de-embedding groove frame body 5. The leading-out wiring electrode 49 is positioned at one side inside the cathode de-embedding groove frame body 4 or the anode de-embedding groove frame body 5 and is used for being connected with the electrode plate conductive cut-off body to lead out current, the outside of the electrode is used for being connected with a polar plate power supply to provide power supply, and the electrode is placed between the de-embedding groove body of the cathode and the anode to apply direct current voltage.
Example 3
As shown in fig. 4, the horizontal frame surface of the lower end of the cathode de-intercalation tank frame body 4 or the anode de-intercalation tank frame body 5 is arranged along the water inlet side to the water outlet side at an angle α, and the angle α is 1 to 10 °. When the alpha angle is adopted for facilitating liquid exchange, the solution can be quickly discharged by means of liquid difference.
In a further scheme, as shown in fig. 7-10, a water distribution pipe is arranged on the liquid inlet side of the tank unit cavity 45, and a water collecting pipe is arranged on the liquid outlet side. The purpose of this arrangement is that the liquid in the cavity 45 of the trough body unit flows from the liquid inlet side to the liquid outlet side in an even distribution and orderly from top to bottom, and finally flows out of the pipeline 47, the water distribution pipe is provided with a plurality of openings 6 (as shown in fig. 7) with gradually increasing pore diameters or a plurality of openings 6 (as shown in fig. 8) with the same pore diameters and gradually decreasing distribution densities from small to large from the near water side to the far water side, and the water collection pipe is provided with a plurality of openings 6 (as shown in fig. 9) with the same pore diameters and gradually decreasing distribution densities from large to small from the near water side to the far water side (as shown in fig. 10). The opening 6 in this embodiment is a circular hole or a rectangular hole, and may be an opening of another shape.
In a further scheme, the lowest position of the middle position of the second transverse frame 42 at the lower end of the cathode de-embedding groove frame body 4 or the anode de-embedding groove frame body 5 is provided with a discharge hole, so that the two opposite sides form an obtuse angle, and the solution can be discharged thoroughly.
Example 4
As shown in fig. 11-15, the cathode de-intercalation tank frame 4 or the anode de-intercalation tank frame 5 is connected with an electrode plate through a bolt, the electrode plate is arranged inside the tank unit cavity 45 (not marked in the figures), the electrode plate is fixedly connected with a water distribution system, and the water distribution system is positioned between the electrode plate and the ionic membrane 3, so that the support of the space in the tank unit cavity 45 and the favorable influence of the liquid flow in the cavity are realized.
The water distribution system of the invention is of a frame structure, can realize relatively uniform cavity space, firstly ensures uniform electric field and good reaction consistency, and in addition, ensures small stress and tension of the ionic membrane 3 and prolongs the service life. The vertical water distribution strips 7 and the horizontal water distribution strips 8 in the embodiment are both made of PP materials, and the solution does not corrode the vertical water distribution strips and the horizontal water distribution strips and has certain strength and elasticity.
In a further scheme, the water distribution system is composed of a plurality of water distribution transverse strips 8 and a plurality of water distribution vertical strips 7, the adjacent water distribution vertical strips 7 are spliced to form the water distribution system, and two ends of one water distribution transverse strip 8 are respectively spliced on the two water distribution vertical strips 7. One end of the vertical water distribution strips 7 is provided with a plug connector 73, and the other end is correspondingly provided with a plug hole 74 matched with the plug connector 73, so that the adjacent vertical water distribution strips 7 are plugged. The design is convenient for the connection between the adjacent vertical frames, the stability of the whole structure is enhanced, a plurality of fixing holes 72 are uniformly arranged on the vertical water distribution strip 7, the two ends of the horizontal water distribution strip 8 are fixing columns 82, and the fixing columns 82 are inserted into the fixing holes 72, so that the vertical water distribution strip 7 is inserted into the horizontal water distribution strip 8.
The fixing posts 82 in this embodiment are hexagonal prisms, the fixing holes 72 are hexagonal holes, and the vertical water distribution bar 7 is provided with a bolt hole 71 to fixedly connect the water distribution system to the electrode plate. The bolt holes 71 are provided with threads, the water distribution vertical bars 7 are simultaneously arranged at the same positions on the two sides of the electrode plate and are fixed by penetrating through the fixing holes by nylon or other corrosion-resistant screw holes, so that a stable frame structure integrally consisting of the transverse frame and the vertical frame is ensured.
One side surface of the water distribution vertical bar 7 connected with the electrode plate is of a plane structure, and the other opposite side surface is in arc-shaped wave shape and is contacted with the ionic membrane 3. The plane structure ensures that the water distribution vertical bars 7 are reliably fixed with the electrode plate, the arc-shaped wave design avoids influencing the reaction contact of the electrode plate and liquid due to large contact area with a fixed object, ensures that the liquid can have larger contact area with the ionic membrane 3, and the liquid can flow through gaps between the liquid and the ionic membrane, plays a supporting role, does not damage the ionic membrane, reduces the probability of damaging the electrode plate, and realizes the flow and exchange of the liquid at two sides of the adjacent vertical frames locally by the aid of the hexagonal hole arc surface design without the water distribution horizontal bars 8, so that a flow field is further uniform. The water distribution horizontal strips 8 are provided with a plurality of holes 81 allowing liquid to flow through, the holes 81 allowing liquid to flow through are square holes or round holes, or holes with other shapes, in this embodiment, the explanation is given by rectangular holes, the water distribution horizontal strips 8 are flat along the width direction, the edges of the water distribution horizontal strips have certain radian, and the water distribution horizontal strips 8 can rotate on the water distribution vertical strips 7 at different angles. The water distribution horizontal strips 8 can be inserted at different positions of the water distribution horizontal strips 7 to form a stable frame, the water distribution horizontal strips 8 are adjusted in quantity and different angles, the water distribution vertical strips 7 are matched to control water flow, the water flow is enabled to flow from bottom to top, the water flow is continuously disturbed by the horizontal strips at different angles, turbulence is formed, holes 81 allowing liquid to flow through and the flow direction of the liquid have different angles through rotation, the liquid is disturbed, the uniformity of a flow field is further realized, the liquid can be locally adjusted to be changed into turbulence from laminar flow, and the distribution of concentration and the flow field is changed.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (12)
1. The utility model provides an electrochemistry is taken off and is inlayed method salt lake lithium with taking off groove cell body structure, its characterized in that, taking off groove cell body structure by two end plates and a plurality of negative and positive take off and inlay the groove unit and form through pressure extrusion, a plurality of negative and positive take off and inlay the groove unit and be located between two end plates, two end plates in be provided with a plurality of logical liquid holes that allow liquid to pass through on having an end plate.
2. The deintercalation groove body structure for extracting lithium from the salt lake by the electrochemical deintercalation method according to claim 1, it is characterized in that the cathode and anode de-intercalation tank unit is formed by oppositely arranging a cathode de-intercalation tank frame body and an anode de-intercalation tank frame body, the cathode de-intercalation tank frame body and the anode de-intercalation tank frame body have the same structure, and an ionic membrane is arranged between the cathode de-intercalation tank frame body and the anode de-intercalation tank frame body, a groove unit cavity is arranged in the cathode de-intercalation groove frame body or the anode de-intercalation groove frame body, the cathode de-intercalation tank frame body or the anode de-intercalation tank frame body is communicated with the tank body unit cavity through a pipeline, preferably, the cathode de-intercalation tank frame body or the anode de-intercalation tank frame body is of a rectangular structure or a square structure, more preferably, the cathode de-embedding groove frame body or the anode de-embedding groove frame body is composed of two transverse frames and two vertical frames.
3. The deintercalation tank body structure for extracting lithium from salt lake by electrochemical deintercalation method according to claim 2, wherein each corner of the cathode deintercalation tank frame body or the anode deintercalation tank frame body is provided with a hole, preferably, two holes on the transverse frame of the cathode deintercalation tank frame body or the anode deintercalation tank frame body are on the same horizontal line, and two holes on the vertical frame are on the same vertical line.
4. The deintercalation tank body structure for extracting lithium from salt lake by electrochemical deintercalation method according to claim 2 or 3, wherein the cavity of the tank body unit is formed by hot pressing of PVC material with elasticity, preferably, the top of the cavity of the tank body unit is provided with a vent hole, and the diameter of the vent hole is 10-20 mm.
5. The desorption groove body structure for extracting lithium from the salt lake by the electrochemical desorption method according to claim 4, wherein a support leg for fixing the polar plate is fixedly arranged on one side of the cathode desorption groove frame body or the anode desorption groove frame body connected with the groove body unit cavity, preferably, the support leg is in a shape of a semicircle, a trapezoid or a rectangle, more preferably, the support leg has a width of 10-1200mm and a height of 10-20 mm.
6. The deintercalation tank body structure for extracting lithium from a salt lake by an electrochemical deintercalation method according to claim 4, wherein a water distribution pipe is arranged on the liquid inlet side of the cavity of the tank body unit, a water collection pipe is arranged on the liquid outlet side, preferably, a plurality of open pores with gradually increasing pore diameters or a plurality of open pores with the same pore diameter and distribution density from small to large are arranged on the water distribution pipe from the near water side to the far water side, a plurality of open pores with gradually decreasing pore diameters or a plurality of open pores with the same pore diameter and distribution density from large to small are arranged on the water collection pipe from the near water side to the far water side, and more preferably, the open pores are circular pores, elliptical pores or rectangular pores.
7. The deintercalation tank body structure for extracting lithium from the salt lake by the electrochemical deintercalation method according to claim 2, wherein a cathode deintercalation tank frame body or an anode deintercalation tank frame body is connected with an electrode plate through a bolt, a water distribution system is fixedly connected to the electrode plate, and the water distribution system is positioned between the electrode plate and an ionic membrane.
8. The deintercalation tank body structure for extracting lithium from the salt lake by the electrochemical deintercalation method according to claim 7, wherein the water distribution system is of a frame structure consisting of a plurality of water distribution transverse bars and a plurality of water distribution vertical bars, adjacent water distribution vertical bars are spliced to form the deintercalation tank body structure, and two ends of each water distribution transverse bar are respectively spliced to two water distribution vertical bars.
9. The deintercalation groove body structure for lithium extraction in the salt lake by the electrochemical deintercalation method according to claim 8, wherein one end of the water distribution vertical bar is provided with a plug connector, and the other end of the water distribution vertical bar is correspondingly provided with a plug hole matched with the plug connector so as to enable the adjacent water distribution vertical bars to be plugged, preferably, the water distribution vertical bar is uniformly provided with a plurality of fixing holes, two ends of the water distribution cross bar are fixing columns, the fixing columns are plugged into the fixing holes so as to enable the water distribution vertical bar to be plugged with the water distribution cross bar, preferably, the water distribution vertical bar is provided with a bolt hole so as to enable a water distribution system to be fixedly connected to the electrode plate, more preferably, the fixing holes are hexagonal holes, and two ends of the water distribution cross bar are hexagonal prisms.
10. The lithium extraction and desorption groove body structure of the electrochemical desorption and desorption method salt lake according to any one of claims 7 to 9, characterized in that one side surface of the water distribution vertical bar connected with the electrode plate is a plane structure, the other opposite side surface is an arc wave shape and is contacted with the ionic membrane, preferably, a plurality of holes allowing liquid to flow are arranged on the water distribution horizontal bar, the holes allowing liquid to flow are square holes or round holes, more preferably, the water distribution horizontal bar is flat along the width direction, the edge has a certain radian, and more preferably, the water distribution horizontal bar can rotate on the water distribution vertical bar at different angles.
11. The desorption groove body structure for extracting lithium from the salt lake by the electrochemical desorption method according to claim 2, wherein one corner of the cathode desorption groove frame body or the anode desorption groove frame body is communicated with an external pipeline through a pipeline, and the other corner diagonally opposite to the corner is communicated with the external pipeline through a pipeline, the external pipeline is communicated with the adjacent cathode desorption groove frame body or the anode desorption groove frame body, and preferably, a transverse frame at the upper end or the lower end of the cathode desorption groove frame body or the anode desorption groove frame body is fixedly provided with a lead-out wiring electrode.
12. The deintercalation tank body structure for extracting lithium from salt lake by electrochemical deintercalation method as claimed in claim 2, wherein the transverse frame surface of the lower end of the cathode deintercalation tank frame body or the anode deintercalation tank frame body is arranged along the water inlet side to the water outlet side at an angle α, preferably, the angle α is 1-10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010936233.8A CN112030007A (en) | 2020-09-08 | 2020-09-08 | Electrochemical desorption method salt lake lithium extraction is with desorption groove cell body structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010936233.8A CN112030007A (en) | 2020-09-08 | 2020-09-08 | Electrochemical desorption method salt lake lithium extraction is with desorption groove cell body structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112030007A true CN112030007A (en) | 2020-12-04 |
Family
ID=73584992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010936233.8A Pending CN112030007A (en) | 2020-09-08 | 2020-09-08 | Electrochemical desorption method salt lake lithium extraction is with desorption groove cell body structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112030007A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114636888A (en) * | 2022-05-20 | 2022-06-17 | 石家庄嘉硕电子技术有限公司 | Method and device for detecting state of de-embedded electrode plate |
| CN115772609A (en) * | 2023-02-13 | 2023-03-10 | 石家庄嘉硕电子技术有限公司 | Electrochemical lithium extraction method and electrochemical lithium extraction system |
-
2020
- 2020-09-08 CN CN202010936233.8A patent/CN112030007A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114636888A (en) * | 2022-05-20 | 2022-06-17 | 石家庄嘉硕电子技术有限公司 | Method and device for detecting state of de-embedded electrode plate |
| CN114636888B (en) * | 2022-05-20 | 2022-07-29 | 石家庄嘉硕电子技术有限公司 | Method and device for detecting state of de-embedded electrode plate |
| CN115772609A (en) * | 2023-02-13 | 2023-03-10 | 石家庄嘉硕电子技术有限公司 | Electrochemical lithium extraction method and electrochemical lithium extraction system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112030007A (en) | Electrochemical desorption method salt lake lithium extraction is with desorption groove cell body structure | |
| CN108796538B (en) | Electrode sealing frame for electrolytic tank | |
| CN212426149U (en) | Electrochemical desorption method salt lake lithium extraction is with desorption groove cell body structure | |
| US20230203687A1 (en) | Membrane-stacked electrolytic bath for lithium extraction from salt lakes by electrochemical intercalation/deintercalation | |
| CN202107778U (en) | Membrane type electrolytic cell | |
| CN214694319U (en) | Cell for lithium extraction cell | |
| CN103620090A (en) | Electrochemical cell having a frame seal for alternative sealing against marginal leakages of the electrolyte | |
| CN206126922U (en) | Electric capacity removes ion device | |
| CN205700165U (en) | A kind of fluid pressure type bipolar membrane electrodialysis device | |
| CN203653710U (en) | Bipolar membrane pole distance electrolytic cell with circulating pipe | |
| CN214655163U (en) | Metal ion continuous conversion device | |
| CN206768256U (en) | A kind of nickel plating apparatus | |
| CN100557085C (en) | The tandem type electrolytic tank that no lead connects | |
| CN209098825U (en) | A kind of electrolytic cell that obturation effect is good | |
| CN210886252U (en) | Novel INEOS membrane polar distance electrolytic cell | |
| CN206680226U (en) | Acidic oxidized electric potential water produces electrolytic cell | |
| CN202284227U (en) | Energy-saving series connection electrolysis device with electrolyte flowing into and out of separation groove in circulation mode | |
| CN201128760Y (en) | Film electrode distance type multi-pole natural-circulating electrolytic tank with ion-exchange film | |
| CN219615287U (en) | Concentration and extraction equipment for ions in solution system | |
| CN217809691U (en) | Spring piece for membrane polar distance ion membrane electrolytic cell | |
| CN206308425U (en) | A kind of utilization Electro Sorb processes the device of brine waste | |
| CN200964444Y (en) | Permanent nickel button negative plate | |
| CN205934058U (en) | Hydrometallurgy amberplex electrolysis trough | |
| CN206204439U (en) | Split type pole plate bridging arrangement and the electrolytic cell with the structure | |
| CN106611863A (en) | Structure for preventing bipolar plate from being corroded in electric stack of redox flow battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |