Salt lake lithium extraction device with multi-tab structure

Abstract

The utility model relates to the field of salt lake electric de-embedding lithium extraction equipment, and discloses a salt lake lithium extraction device with a multi-tab structure, which comprises a frame, a plurality of screw rods are respectively arranged on the front side and the rear side of the frame in a linear array, a plurality of positive and negative electrode frames are arranged on the inner side wall of the frame in a linear array, and the positive and negative electrode frames comprise electrode frames. Polar plates are fixedly connected to the middles of the inner side walls of the pole frames, common-point tabs are fixedly connected to the front ends of the connecting tabs, power supply connecting holes are fixedly connected to the bottom ends of the common-point tabs, and the top ends of the pole frames are fixedly connected with the top end of the inner side wall of the frame. According to the utility model, a plurality of positive and negative electrode frames are respectively arranged in the framework in a linear array, a plurality of groups of connecting tabs are connected by using the common-point tabs, the adsorption efficiency and the utilization rate of the ionic membrane are improved, and the power supply connecting holes are formed in the bottom ends of the common-point tabs, so that the power supply interface design is simplified; and the current distribution uniformity is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to salt lake electrically deintercalating lithium equipment field especially, and relates to a kind of salt lake lithium extraction devices of multi-pole structure. BACKGROUND

[0002] Lithium and its compounds have wide application prospect, and the demand for lithium resources is increasing. Liquid lithium resources represented by salt lake brine have abundant reserves and low cost, and have broad development market. Among many lithium separation technologies, electrically deintercalating lithium realizes efficient enrichment of lithium through lithium ion intercalation / deintercalation reaction of electrode materials. By periodically switching the polarity of power supply and the flow direction of brine / lithium-rich liquid, continuous enrichment of lithium is realized, which promotes the gradual increase of lithium-rich liquid concentration. In addition, by precisely controlling the electrode potential, only lithium ions are allowed to intercalate / deintercalate within a specific voltage window, and other metal ions are excluded due to mismatched redox potentials, to realize high-selectivity separation of target ions at low concentration.

[0003] However, the current device for realizing electrically deintercalation mainly uses an ion membrane arranged in the box to separate the positive and negative electrode slurries. In this structure, each of the positive and negative electrode frames is provided with a pole, and when ion exchange is performed by electrifying the pole, the edge contact area between the ion membrane and the slurry cannot be effectively utilized, and the adsorption efficiency cannot be further improved, which is prone to dead zones. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art, and provides a salt lake lithium extraction device with a multi-pole structure. The positive and negative electrode frames are arranged in linear array inside the frame, the common-point pole is used to connect the connection poles of multiple groups, the adsorption efficiency and the utilization rate of the ion membrane are improved, and the power connection hole is arranged at the bottom end of the common-point pole to simplify the design of the power interface and improve the uniformity of current distribution.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a salt lake lithium extraction device with a multi-pole structure, comprising a frame, a plurality of screws are arranged in linear array on the front side and the rear side of the frame, a plurality of positive and negative electrode frames are arranged in linear array on the inner side wall of the frame, the positive and negative electrode frames comprise a pole frame, a pole plate is fixedly connected to the middle part of the inner side wall of the pole frame, an ion membrane is fixedly connected to the rear end of the pole plate, a plurality of connection poles are arranged in linear array on one side of the pole frame, a common-point pole is fixedly connected to the front end of the plurality of connection poles, a power connection hole is fixedly connected to the bottom end of the common-point pole, and the top end of the plurality of pole frames is fixedly connected to the top end of the inner side wall of the frame.

[0006] By the above technical scheme, by arranging the connection tabs on the positive and negative electrode frames on the same side, the dead zone can be avoided, and the contact area of the slurry and the ion membrane is increased, and the adsorption efficiency and the utilization rate of the ion membrane are improved.

[0007] Further, the plurality of common-point tabs are one or more of graphene, copper material and graphene copper-based composite material.

[0008] By the above technical scheme, the graphene copper-based composite material has ultra-high electrical conductivity and thermal conductivity, and performs well in high-temperature environment. The light and thin characteristics and excellent strength and rigidity make it widely used in the electronic field.

[0009] Further, the plurality of screws respectively penetrate the two sides of the frame.

[0010] By the above technical scheme, the stability of the device as a whole is effectively improved, and the positive and negative electrode frames are fixed and compressed.

[0011] Further, two through holes are respectively formed at the front ends of the plurality of connection tabs.

[0012] By the above technical scheme, the common-point tabs are conveniently installed.

[0013] Further, the plurality of common-point tabs are L-shaped strip structures.

[0014] By the above technical scheme, the power interface design is simplified, and the uniformity of current distribution is improved.

[0015] Further, the ion membrane and the inner wall of the electrode frame are mutually adapted.

[0016] By the above technical scheme, the ion membrane is effectively installed.

[0017] Further, the plurality of common-point tabs are arranged in high and low positions in the interior of the frame.

[0018] By the above technical scheme, a wide range can be covered to avoid dead zones and increase the contact area of the slurry and the ion membrane.

[0019] Further, the plurality of positive and negative electrode frames are located on the same side or different sides in the interior of the frame.

[0020] By the above technical scheme, the application range of the device is effectively improved

[0021] The utility model has the following beneficial effects:

[0022] 1. The utility model discloses a plurality of positive and negative pole frame is arranged in the frame inside respectively in linear array, and the connecting lug on the positive and negative pole frame is arranged in the same side and is arranged and assembled, can cover a wide range, to avoid the dead zone and then improve the contact area of slurry and ion exchange membrane, improve the adsorption efficiency and the utilization rate of ion exchange membrane.

[0023] 2. The utility model discloses a plurality of connecting lug is connected through the common point lug, and the power connection hole is arranged at one end of the common point lug, reaches the power interface design of simplification, promotes the current distribution uniformity, and the common point lug adopts one or more of graphene, copper material and graphene copper base composite material, and it has super high conductivity and thermal conductivity, and shows outstanding in high temperature environment, and its light and thin characteristics and excellent strength and rigidity make it have wide application in the electronic field. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a perspective view of a salt lake lithium extraction device with a multi-tab structure provided by the utility model;

[0025] Figure 2 It is a front view of a salt lake lithium extraction device with a multi-tab structure provided by the utility model;

[0026] Figure 3 It is a perspective view of a positive and negative pole frame of a salt lake lithium extraction device with a multi-tab structure provided by the utility model;

[0027] Figure 4 It is another perspective view of a positive and negative pole frame of a salt lake lithium extraction device with a multi-tab structure provided by the utility model.

[0028] LEGEND:

[0029] 1, frame;2, positive and negative pole frame;201, pole frame;202, pole plate;203, ion exchange membrane;204, common point lug;205, connecting lug;206, power connection hole;3, screw rod. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0031] REFERENCE Figures 1-4The utility model provides a kind of lithium extraction device of salt lake of multiple pole lug structure, including frame 1, frame 1 two sides are linear array and have several screw rods 3 in front side and rear side, frame 1 inner side wall is linear array and has several positive and negative pole frame 2, positive and negative pole frame 2 includes pole frame 201, pole plate 202 is fixedly connected in the middle of the inner side wall of pole frame 201, ion membrane 203 is fixedly connected in the rear end of pole plate 202, several connecting pole lug 205 are linear array in the side of pole frame 201, several connecting pole lug 205 front end is fixedly connected with common point pole lug 204, common point pole lug 204 bottom end is fixedly connected with power connection hole 206, several pole frame 201 top end is fixedly connected with the inner side wall top end of frame 1, by linear array setting several positive and negative pole frame 2 in the inside of frame 1, connecting pole lug 205 on positive and negative pole frame 2 is arranged in the same side, can cover in a large range, to avoid generating dead zone to improve the contact area of slurry and ion membrane 203, improve adsorption efficiency and the utilization of ion membrane 203.

[0032] Several common point pole lugs 204 are one or more in graphene, copper material and graphene copper base composite material, several screw rods 3 are respectively through the two sides of frame 1, two through holes are respectively set in the front end of several connecting pole lugs 205, several common point pole lugs 204 are all L-shaped strip structure, ion membrane 203 and the inner side wall of pole frame 201 are mutually adapted, several common point pole lugs 204 are respectively arranged in the inside of frame 1, several positive and negative pole frame 2 are located in the same side or different side in the inside of frame 1, use common point pole lug 204 to connect multiple groups of connecting pole lug 205, and power connection hole 206 is arranged in the one end of common point pole lug 204, reach the design of simplifying power supply interface, improve the uniformity of current distribution, simultaneously, common point pole lug 204 is one or more in graphene, copper material and graphene copper base composite material, it has super high conductivity and thermal conductivity, and it is excellent in high temperature environment. Its light and thin characteristics and excellent strength and rigidity make it have wide application in electronic field.

[0033] Working principle: by linear array setting several positive and negative pole frame 2 in the inside of frame 1, connecting pole lug 205 on positive and negative pole frame 2 is arranged in the same side, can cover in a large range, to avoid generating dead zone to improve the contact area of slurry and ion membrane 203, improve adsorption efficiency and the utilization of ion membrane 203, use common point pole lug 204 to connect multiple groups of connecting pole lug 205, and power connection hole 206 is arranged in the one end of common point pole lug 204, reach the design of simplifying power supply interface, improve the uniformity of current distribution, simultaneously, common point pole lug 204 uses graphene, it has super high conductivity and thermal conductivity, and it is excellent in high temperature environment. Its light and thin characteristics and excellent strength and rigidity make it have wide application in electronic field.

[0034] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A lithium extraction device for salt lakes with a multi-electrode structure, comprising a frame (1), characterized in that: The frame (1) has several screws (3) arranged in a linear array on the front and rear sides of its two sides. The inner wall of the frame (1) has several positive and negative electrode frames (2) arranged in a linear array. The positive and negative electrode frames (2) include an electrode frame (201). An electrode plate (202) is fixedly connected to the middle of the inner wall of the electrode frame (201). An ion membrane (203) is fixedly connected to the rear end of the electrode plate (202). The electrode frame (201) has several connecting tabs (205) arranged in a linear array on one side. A common point tab (204) is fixedly connected to the front end of the connecting tabs (205). A power connection hole (206) is fixedly connected to the bottom end of the common point tab (204). The top of the electrode frames (201) is fixedly connected to the top of the inner wall of the frame (1).

2. The lithium extraction device for salt lakes with a multi-electrode structure according to claim 1, characterized in that: Several of the aforementioned screws (3) pass through both sides of the frame (1).

3. The lithium extraction device for salt lakes with a multi-electrode structure according to claim 1, characterized in that: Each of the aforementioned connecting tabs (205) has two through holes at its front end.

4. The lithium extraction device for salt lakes with a multi-electrode structure according to claim 1, characterized in that: Several of the aforementioned common tabs (204) are L-shaped strip structures.

5. The lithium extraction device for salt lakes with a multi-electrode structure according to claim 1, characterized in that: The ion membrane (203) is adapted to the inner wall of the pole frame (201).

6. The lithium extraction device for salt lakes with a multi-electrode structure according to claim 1, characterized in that: Several common pole tabs (204) are arranged at different heights inside the frame (1).

7. The lithium extraction device for salt lakes with a multi-electrode structure according to claim 1, characterized in that: Several of the positive and negative pole frames (2) are located on the same side or different sides inside the frame (1).

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