CN210394477U

CN210394477U - Extraction device for recovering cobalt and nickel from waste ternary batteries

Info

Publication number: CN210394477U
Application number: CN201822274058.1U
Authority: CN
Inventors: 王海军; 徐宇池
Original assignee: Qidong Beixin Inorganic Chemical Co ltd
Current assignee: Nantong beixinneng Technology Co.,Ltd.
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2020-04-24
Anticipated expiration: 2028-12-29

Abstract

The utility model discloses an extraction device for recovering cobalt and nickel from waste ternary batteries, which belongs to the field of waste battery extraction, and comprises an extraction device shell, wherein the upper end and the lower end of the extraction device shell are respectively connected with a feed inlet and a discharge outlet, the middle part of the upper end of the extraction device shell is provided with a rotary hole, a stirring device is inserted in the rotary hole, the upper side of the extraction device shell is provided with a motor, the rotary end of the motor is fixedly connected with the stirring device, the upper end of the motor is connected with a support plate, an electric push rod is connected between the support plate and the extraction device shell, the upper end of the extraction device shell is provided with a pair of slide holes, the slide holes are respectively positioned at the two sides of the rotary hole, a movable plate is inserted in the slide holes, and the cobalt and nickel mixture bonded on the stirring plate can be easily scraped before standing and separating, the extraction rate of cobalt and nickel elements is improved, time and labor are saved, and waste is not easy to cause.

Description

Extraction device for recovering cobalt and nickel from waste ternary batteries

Technical Field

The utility model relates to a waste battery extracts the field, and more specifically says, relates to a retrieve cobalt nickel's extraction device in follow waste ternary battery.

Background

The ternary polymer lithium battery is a lithium battery with a positive electrode material made of a nickel cobalt lithium manganate (Li (NiCoMn) O2) ternary positive electrode material, and a precursor product of the ternary composite positive electrode material is prepared by taking nickel salt, cobalt salt and manganese salt as raw materials, wherein the proportion of nickel, cobalt and manganese in the lithium battery can be adjusted according to actual needs. If the substances in the waste lithium ion batteries enter the ecology, heavy metal nickel and cobalt pollution (including arsenic), fluorine pollution, organic matter pollution, dust and acid-base pollution can be caused. Electrolytes and conversion products of waste lithium ion batteries, such as LiPF6, LiAsF6, LiCF3SO3, HF, P2O5 and the like, and solvents and decomposition and hydrolysis products thereof, such as DME, methanol, formic acid and the like, are toxic and harmful substances, and can cause personal injury and even death. Therefore, the cobalt, nickel and other elements in the waste ternary batteries need to be recycled.

At present, the resource recovery process comprises two stages of pretreatment and subsequent treatment: the pretreatment is to place the waste lithium battery into salt solution for discharging, remove the external package of the battery, remove the metal steel shell to obtain the inner battery core, wherein the battery core consists of a negative electrode, a positive electrode, a diaphragm and electrolyte, the negative electrode is attached to the surface of copper foil, the positive electrode is attached to the surface of aluminum foil, and the diaphragm is organic polymer; the electrolyte is attached to the surfaces of the positive electrode and the negative electrode and is an organic carbonate solution of LiPF 6; the subsequent treatment links are to recover high-value components in various disassembled wastes and carry out battery material reconstruction or repair, and the technical methods can be divided into three categories: dry recovery technology, wet recovery technology and biological recovery technology. The wet recovery technology has the highest recovery rate, and is characterized in that various acid-base solutions are used as transfer media to transfer metal ions from electrode materials into leachate, and then the metal ions are extracted from the leachate in the forms of salts, oxides and the like by means of ion exchange, precipitation, adsorption and the like, and the recovery method mainly comprises three methods, namely hydrometallurgy, chemical extraction, ion exchange and the like.

However, when cobalt and nickel elements are extracted in the existing wet recovery, in order to improve the extraction rate, the extracting agent and the extracting material are mixed more uniformly and sufficiently, and generally the extracting agent and the extracting material are stirred before standing and separating, and because the extracting material and the like have high viscosity, the material is generally adhered to a stirring plate, in the existing life, people need to wait for the material to slide down under the action of gravity, so that the extraction time is increased, and partial waste is caused.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

To the problem that exists among the prior art, the utility model aims to provide a retrieve extraction device of cobalt nickel from old and useless ternary battery, it can realize easily scraping the cobalt nickel mixture that bonds on the stirring board before the separation that stews, improves cobalt nickel element's extraction rate, both labour saving and time saving, is difficult for causing the waste again.

2. Technical scheme

In order to solve the above problems, the utility model adopts the following technical proposal.

An extraction device for recovering cobalt and nickel from waste ternary batteries comprises an extraction device shell, wherein the upper end and the lower end of the extraction device shell are respectively connected with a feed inlet and a discharge outlet, a rotating hole is formed in the middle of the upper end of the extraction device shell, a stirring device is inserted into the rotating hole, a motor is arranged on the upper side of the extraction device shell, the rotating end of the motor is fixedly connected with the stirring device, a support plate is connected to the upper end of the motor, an electric push rod is connected between the support plate and the extraction device shell, a pair of sliding holes are formed in the upper end of the extraction device shell and respectively located on two sides of the rotating hole, a movable plate is inserted into the sliding holes, a scraper plate is fixedly connected to the lower end of the movable plate and located on one side close to the stirring device, and a compression spring is connected to one side, far away from the motor, and a pair of compression springs are respectively connected with the feeding hole and the electric push rod, so that the cobalt-nickel mixture bonded on the stirring plate can be easily scraped before standing and separating, the extraction rate of cobalt-nickel elements is improved, time and labor are saved, and waste is not easily caused.

Further, agitating unit is including last stirring board, well stirring board and lower stirring board, go up and all be connected with extension spring and a pair of stirring extension board group between stirring board and the well stirring board and stir down between the board, stirring extension board group comprises two stirring extension boards that the rotation is connected each other, through multi-direction stirring, makes between extractant and the material mix more fully evenly, makes the extraction effect better, and cobalt nickel element's extraction rate is higher.

Further, the front end of extraction device shell is dug there is the rectangular hole, install the transparent plate in the rectangular hole, the transparent plate wraps up all around has the sealing washer, easily observes the extraction device shell internal conditions through the transparent plate.

Further, the one end fixedly connected with rubber pad that the scraper blade is close to agitating unit, be connected with the coarse layer on the rubber pad, increase the friction between scraper blade and the agitating unit, make the effect of scraping off to the last mixed liquid that bonds of agitating unit better.

Furthermore, one end of the moving plate, which is close to the motor, is provided with an inclined plane, so that the pair of moving plates can be conveniently ejected to two sides through the motor.

Furthermore, the outside of extension spring cup joints flexible protective sheath, reduces the bonding of mixed liquid on extension spring, protects extension spring simultaneously, prolongs extension spring's life.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

(1) this scheme can realize easily scraping the cobalt nickel mixture that bonds on the stirring board before the separation that stews, improves cobalt nickel element's extraction rate, both labour saving and time saving is difficult for causing the waste again.

(2) Agitating unit includes and stirs board, well stirring board and lower stirring board, goes up and stirs between the board and well stirring board and stir down and all be connected with extension spring and a pair of stirring extension board group down between the board, stirs two stirring extension boards that the extension board group is connected by the rotation each other and forms, through multi-direction stirring, makes to mix more fully evenly between extractant and the material, makes the extraction effect better, and cobalt nickel element's extraction rate is higher.

(3) The front end of extraction device shell is dug there is the rectangular hole, installs the transparent plate in the rectangular hole, and the transparent plate wraps up all around has the sealing washer, easily observes the inside condition of extraction device shell through the transparent plate.

(4) The one end fixedly connected with rubber pad that the scraper blade is close to agitating unit is connected with rough layer on the rubber pad, increases the friction between scraper blade and the agitating unit, makes the effect of scraping off to the last mixed liquid that bonds of agitating unit better.

(5) One end of the moving plate close to the motor is provided with an inclined plane, so that the pair of moving plates can be conveniently ejected to two sides through the motor.

(6) The outside of extension spring cup joints flexible telescopic protective sheath, reduces the bonding of mixed liquid on extension spring, protects extension spring simultaneously, extension spring's life.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the stirring support plate assembly of the present invention;

FIG. 3 is a front view of the structure of the present invention;

fig. 4 is a schematic structural view of the utility model when scraping the mixed liquid.

The reference numbers in the figures illustrate:

1 extraction device shell, 11 feed inlet, 12 discharge outlet, 2 stirring device, 21 upper stirring plate, 22 middle stirring plate, 23 lower stirring plate, 24 stirring support plate group, 25 extension spring, 3 motor, 4 support plate, 5 electric push rod, 6 moving plate, 61 scraper and 62 compression spring.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-4, an extraction apparatus for recovering cobalt and nickel from waste and old ternary batteries comprises an extraction apparatus housing 1, the upper end and the lower end of the extraction apparatus housing 1 are respectively connected with a feed inlet 11 and a discharge outlet 12, the middle part of the upper end of the extraction apparatus housing 1 is provided with a rotary hole, a stirring device 2 is inserted in the rotary hole, the upper side of the extraction apparatus housing 1 is provided with a motor 3, the rotary end of the motor 3 is fixedly connected with the stirring device 2, the upper end of the motor 3 is connected with a support plate 4, an electric push rod 5 is connected between the support plate 4 and the extraction apparatus housing 1, the motor 3 is driven to move up and down by the electric push rod 5, a technician in the field can select the motor 3 and the electric push rod 5 with proper models for use, the upper end of the extraction apparatus housing 1 is provided with a pair of slide holes, the pair of slide holes, the lower end of the moving plate 6 is fixedly connected with a scraper 61, the scraper 61 is positioned on one side close to the stirring device 2, one side of the upper end of the moving plate 6 far away from the motor 3 is connected with a compression spring 62, and the pair of compression springs 62 are respectively connected with the feed port 11 and the electric push rod 5.

Scraper blade 61 is close to agitating unit 2's one end fixedly connected with rubber pad, be connected with rough layer on the rubber pad, increase the friction between scraper blade 61 and the agitating unit 2, it is better to make the mixed liquid's that bonds on agitating unit 2 strike off the effect, the one end that moving plate 6 is close to motor 3 is equipped with the inclined plane, be convenient for push off a pair of moving plate 6 to both sides through motor 3, elastic flexible protective sheath is cup jointed in extension spring 25's the outside, reduce the bonding of mixed liquid on extension spring 25, protect extension spring 25 simultaneously, extension spring 25's life.

Referring to fig. 2, the stirring device 2 includes an upper stirring plate 21, a middle stirring plate 22 and a lower stirring plate 23, the extension springs 25 and a pair of stirring support plate groups 24 are connected between the upper stirring plate 21 and the middle stirring plate 22 and between the middle stirring plate 22 and the lower stirring plate 23, and the stirring support plate groups 24 are composed of two stirring support plates which are rotatably connected with each other, referring to fig. 4, the stirring support plate groups 24 can be moved to the vertical direction by extending the extension springs 25, and the extractant and the material can be more sufficiently and uniformly mixed by multi-directional stirring, so that the extraction effect is better, and the extraction rate of cobalt and nickel elements is higher.

Referring to fig. 3, a rectangular hole is cut in the front end of the casing 1 of the extraction device, a transparent plate is installed in the rectangular hole, a sealing ring is wrapped around the transparent plate, and the internal condition of the casing 1 of the extraction device can be easily observed through the transparent plate.

The extraction material and the extractant containing cobalt and nickel are injected into the shell 1 of the extraction device through the feed port 11, the switch of the motor 3 is started, the motor 3 drives the stirring device 2 to rotate and stir, so that the extractant and the material are mixed more fully and uniformly, the extraction rate is improved, a user can control the electric push rod 5 to extend after stirring and before standing and separating, the motor 3 is driven to move upwards, the blocking effect of the motor 3 is avoided, the pair of moving plates 6 are drawn close to the middle, the scraper 61 is contacted with the stirring device 2, when the stirring device 2 moves upwards under the effect of the electric push rod 5, the viscosity of the extraction material containing cobalt and nickel is higher, more materials can be bonded on the stirring device 2, waste is caused, the bonding material on the stirring device 2 falls due to gravity, the time is wasted, and at the moment, the scraper 61 can scrape the mixed liquid bonded on the outer surface of the stirring device 2, not only saves time and labor, but also is not easy to cause waste, and improves the extraction rate of cobalt and nickel.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a retrieve extraction element of cobalt nickel from old and useless ternary battery, includes extraction device shell (1), the upper end and the lower extreme of extraction device shell (1) are connected with feed inlet (11) and discharge gate (12) respectively, its characterized in that: the middle part of the upper end of the extraction device shell (1) is provided with a rotary hole, a stirring device (2) is inserted into the rotary hole, a motor (3) is arranged on the upper side of the extraction device shell (1), the rotary end of the motor (3) is fixedly connected with the stirring device (2), the upper end of the motor (3) is connected with a support plate (4), an electric push rod (5) is connected between the support plate (4) and the extraction device shell (1), the upper end of the extraction device shell (1) is provided with a pair of slide holes, the pair of slide holes are respectively positioned on two sides of the rotary hole, a movable plate (6) is inserted into the slide holes, the lower end of the movable plate (6) is fixedly connected with a scraper (61), the scraper (61) is positioned on one side close to the stirring device (2), one side of the upper end of the movable plate (6) far away from the motor (3) is, and a pair of compression springs (62) are respectively connected with the feed inlet (11) and the electric push rod (5).

2. The extraction device for recovering cobalt and nickel from waste ternary batteries according to claim 1, characterized in that: the stirring device (2) comprises an upper stirring plate (21), a middle stirring plate (22) and a lower stirring plate (23), and an extension spring (25) and a pair of stirring supporting plate groups (24) are connected between the upper stirring plate (21) and the middle stirring plate (22) and between the middle stirring plate (22) and the lower stirring plate (23).

3. The extraction device for recovering cobalt and nickel from waste ternary batteries according to claim 1, characterized in that: the front end of extraction device shell (1) is dug there is the rectangular hole, install the transparent plate in the rectangular hole, the transparent plate parcel has the sealing washer all around.

4. The extraction device for recovering cobalt and nickel from waste ternary batteries according to claim 1, characterized in that: one end of the scraper (61) close to the stirring device (2) is fixedly connected with a rubber pad, and a rough layer is connected onto the rubber pad.

5. The extraction device for recovering cobalt and nickel from waste ternary batteries according to claim 1, characterized in that: an inclined plane is arranged at one end of the moving plate (6) close to the motor (3).

6. The extraction device for recovering cobalt and nickel from waste ternary batteries according to claim 2 is characterized in that: and an elastic telescopic protective sleeve is sleeved on the outer side of the extension spring (25).