CN218865778U - Anode material dispersion device and anode material vibration sieve device - Google Patents

Abstract

The utility model relates to the field of anode material preparation devices, and provides an anode material dispersion device and an anode material vibrating screen device, wherein the anode material dispersion device comprises an upper dispersion plate and a lower dispersion ring which are coaxially arranged and mutually connected; the projection of the upper dispersion plate in the plane of the lower dispersion ring is positioned in the ring of the lower dispersion ring; one side of the lower dispersion ring close to the upper dispersion plate is provided with a graphene oxide chitosan composite membrane having an adsorption effect on copper. The positive electrode material vibrating screen device comprises a vibrating screen and a positive electrode material dispersing device which is arranged right below a feed inlet of the vibrating screen and is provided with any one of the previous embodiments. The utility model provides a dispersion devices and sieve device that shakes can be arranged in the supplementary impurity metal that detects positive electrode material, and can not cause positive electrode material's waste.

Description

Anode material dispersion device and anode material vibration sieve device

Technical Field

The utility model relates to an anodal material manufacturing installation field particularly, relates to an anodal material dispersion devices and anodal material sieving mechanism that shakes.

Background

When metal impurities such as iron (Fe), copper (Cu), chromium (Cr), nickel (Ni), zinc (Zn), silver (Ag) and the like exist in the anode material, after the voltage of the battery formation stage reaches the oxidation-reduction potential of the metal elements, the metals are firstly oxidized at the anode and then reduced at the cathode, and when the metal simple substance at the cathode is accumulated to a certain degree, the hard edge of the deposited metal pierces through the diaphragm, so that the battery self-discharges. Self-discharge can cause fatal influence to the lithium ion battery, and the production process of the anode material needs to prevent the introduction, the generation and the outflow of metal foreign matters.

The magnetic metal foreign matters can be directly or indirectly magnetized, so that the magnetic metal foreign matters are adsorbed and removed by a permanent magnet iron remover and an electromagnetic iron remover of a production line. The Cu/Zn impurities are non-magnetic and difficult to remove at the later stage of production, and more, the Cu/Zn impurities can only be controlled by controlling an introduction source in the production process. At present, two modes are mainly adopted for monitoring Cu/Zn impurities in a production line, wherein one mode is qualitative detection, and the other mode is quantitative detection. The current copper test method is qualitative: 1kg of the positive electrode material is sampled for wet filtration each time, or 100kg of the positive electrode material is sampled for sieving by a large-mesh sieve. And carrying out color reaction on the filter screen material or the oversize material. Quantification: several grams of the positive electrode material were sampled each time and the copper content of the material was tested using ICP.

The wet filtering method in the qualitative detection is a destructive test, and the material is scrapped after the material is tested. According to the sieving method of the screen with the large mesh, materials need to be separately received and sieved, the time consumption of sample treatment is long, the sieving speed of the materials is slow, the abrasion probability of the screen is increased, magnetic foreign matters are additionally introduced, the materials need to be reworked again, the finished product production is increased, and the test result cannot be fed back to the current real state of a production line. In quantitative determination, the amount of the sampled material is less, the ICP testing period is longer, the sampling process is influenced by personnel, environment, sampling tools and the like, and the sample representativeness is not strong.

In view of this, the present application is specifically proposed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anodal material dispersion devices and anodal material sieve device that shakes aims at improving at least a problem that the background art mentioned.

The embodiment of the utility model is realized like this:

in a first aspect, the utility model provides a positive electrode material dispersing device, which comprises an upper dispersing plate and a lower dispersing ring which are coaxially arranged and mutually connected;

the projection of the upper dispersion plate in the plane of the lower dispersion ring is positioned in the ring of the lower dispersion ring; one side of the lower dispersion ring, which is close to the upper dispersion plate, is provided with a graphene oxide chitosan composite film having an adsorption effect on copper.

In an alternative embodiment, a plurality of through holes in millimeter level are provided on the upper dispersion impeller.

In an alternative embodiment, the surface of the upper dispersion plate has a tungsten carbide coating.

In an alternative embodiment, the edge of the upper dispersion disc is connected to the inner edge of the lower dispersion ring by a plurality of connecting rods.

In an alternative embodiment, the lower dispersion ring is formed by detachably splicing a plurality of sector ring pieces.

In an alternative embodiment, the number of ring sectors is at least 3, the number of connecting rods is the same as the number of ring sectors, and each ring sector is connected to the upper dispersion plate by a connecting rod connected to its inner edge.

In an optional embodiment, a plurality of fasteners are uniformly arranged at the inner edge or the outer edge of the lower dispersion ring, and the fasteners are used for detachably arranging the graphene oxide chitosan composite film on the dispersion ring.

In an optional embodiment, each fastener comprises a pressing part and a limiting part, the longitudinal section of the pressing part is in a hook shape facing the lower dispersing ring, the edge of one side of the pressing part is hinged to the edge of the lower dispersing ring, the limiting part is arranged close to the pressing part, one end of the limiting part is connected with the edge of the lower dispersing ring, the other end of the limiting part is provided with a limiting head, the limiting head extends towards the pressing part, and the pressing part rotates to compress the graphene oxide chitosan composite film and then is limited by the limiting head.

In a second aspect, the present invention provides a cathode material vibrating screen device, which comprises a vibrating screen and a cathode material dispersing device arranged under a feeding port of the vibrating screen as in any one of the foregoing embodiments.

In an alternative embodiment, the upper dispersion plate is arranged 4-6 cm below the feed inlet.

The embodiment of the utility model provides a beneficial effect is:

the application provides an install in the feed inlet department of sieve that shakes during the use of cathode material dispersion devices, get into the cathode material who shakes the sieve from the feed inlet and reach the dispersion impeller earlier, on the dispersion effect of last dispersion impeller cathode material from the edge of last dispersion impeller fell the arrival dispersion ring down, metal impurities in the cathode material was adsorbed by oxidized graphene chitosan complex film. After a certain amount of material is fed, when the vibrating screen is cleaned, the graphene oxide chitosan composite membrane can be wiped by non-woven fabric soaked with a color developing agent, whether the cathode material contains impurity metal or not is judged by observing whether a color development reaction occurs or not, so that the qualitative detection of the metal impurity element in the cathode material is realized, if the cathode material is not wiped, the impurity metal simple substance of the production line is well controlled, and if the cathode material is wiped, the materials in each process of the production line are isolated, detected and processed in a color development manner; the test is more representative for the sample adsorbed by the composite membrane. Adopt the supplementary metal impurities who detects among the cathode material of cathode material dispersion devices that this application provided, detect back cathode material and can also continue to use, can not cause the cathode material waste that is used for the test.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a positive electrode material vibrating screen device provided by an embodiment of the present invention;

FIG. 2 is a schematic structural view of the fastener in an unfastened state;

FIG. 3 is a schematic view of the fastened state of the fastener.

100-positive electrode material dispersion device; 110-upper dispersion plate; 111-vias; 120-lower dispersing ring; a 121-graphene oxide chitosan composite membrane; 122-sector ring blocks; 123-a fastener; 124-pressing piece; 125-a limiter; 126-a limit head; 130-a connecting rod; 10-positive electrode material vibrating screen device; 11-vibrating and screening; 12-the feed inlet.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are usually placed when used, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 as a specific case by those skilled in the art.

As shown in fig. 1, an embodiment of the present application provides a positive electrode material dispersion apparatus 100, including an upper dispersion disk 110 and a lower dispersion ring 120 that are coaxially disposed and connected to each other;

the projection of the upper dispersion plate 110 in the plane of the lower dispersion ring 120 is located within the ring of the lower dispersion ring 120; one surface of the lower dispersion ring 120 close to the upper dispersion plate 110 is provided with a graphene oxide chitosan composite membrane 121 having an adsorption effect on copper.

The application provides an install in the feed inlet 12 department of sieve 11 that shakes during positive pole material dispersion devices 100 uses, get into the positive pole material of sieve 11 that shakes from feed inlet 12 and reach dispersion impeller 110 earlier, on positive pole material fell from the edge of last dispersion impeller 110 and arrives dispersion ring 120 down under the dispersion effect of last dispersion impeller 110, metallic impurity in the positive pole material was adsorbed by oxidized graphene chitosan complex film 121. After a certain amount of material is fed, when the vibrating screen is cleaned, the graphene oxide chitosan composite membrane 121 can be wiped by non-woven fabric soaked with a color developing agent, whether the cathode material contains impurity metal or not is judged by observing whether color development reaction occurs or not, so that qualitative detection of metal impurity elements in the cathode material is realized, if the non-color development reaction is not observed, the impurity metal simple substance of the production line is well controlled, and if the color development reaction is observed after wiping, the impurity metal of the production line is not well controlled, materials in all working procedures of the production line can be isolated, detected and treated in time; the test is more representative for the sample adsorbed by the composite membrane. Adopt the supplementary metal impurities who detects among the cathode material of cathode material dispersion devices 100 that this application provided, detect back cathode material and can also continue to use, can not cause the cathode material waste that is used for the test.

The metallic impurity elements mentioned in the application mainly refer to copper and zinc, the color developing agent refers to a substance which can be selected when meeting copper or zinc, taking copper as an example, the main body of the copper color developing agent is dicyclohexanoneoxalyl dihydrazone, the coordination agents are sodium acetate and ammonium acetate, and the color developing agent can mainly qualitatively analyze a copper simple substance.

Preferably, the upper dispersion impeller 110 is provided with a plurality of through holes 111 of a millimeter level.

The through holes 111 arranged on the upper dispersion plate 110 are used for eliminating material stress and scouring force of material conveying between floors, and can ensure that the anode material can be more uniformly dispersed on the lower dispersion ring 120.

Preferably, the surface of the upper dispersion plate 110 has a tungsten carbide coating.

Tungsten carbide coating has very high hardness and wearability, because the positive pole material granule can have certain impact force to last dispersion impeller 110 after the feeding, sets up tungsten carbide coating and can avoid going up dispersion impeller 110 wearing and tearing, avoids going up dispersion impeller 110 material and drops and pollute positive pole material.

Preferably, to ensure the strength, the main body of the upper dispersion plate 110 is made of stainless steel, and the main body is covered with a tungsten carbide coating to prevent the foreign metals in the stainless steel from falling off.

Preferably, the edge of the upper dispersion plate 110 is connected to the inner edge of the lower dispersion ring 120 by a plurality of connection rods 130.

Further, the lower dispersion ring 120 is formed by detachably splicing a plurality of sector ring blocks 122.

This arrangement of the lower dispersion ring 120 formed by a plurality of segmented ring segments 122 facilitates installation and removal.

Specifically, the number of the sector ring blocks 122 is at least 3, the number of the connecting rods 130 is the same as the number of the sector ring blocks 122, and each sector ring block 122 is connected to the upper dispersion plate 110 through one connecting rod 130 connected to the inner edge thereof.

Further, in the manner provided in the drawings of the present application, the number of the sector ring blocks 122 is 4, and the width of each sector ring block 122 is 5-10 cm (for example, may be 5cm, 7cm, 8cm or 10 cm).

In some preferred embodiments, the connection between adjacent ring segments 122 is adjustable, such that the area of the lower dispersion ring 120 is smaller when there is overlap between adjacent ring segments 122, and the area of the lower dispersion ring 120 is larger when there is no overlap or a gap between adjacent ring segments 122. Adjustment of the size of the lower dispersion ring 120 is accomplished by adjusting the degree of overlap between adjacent sector ring blocks 122 so that the lower dispersion ring 120 can contact the majority of the material dispersed by the upper dispersion plate 110.

Further, the material of the lower dispersion ring 120 is nylon.

Preferably, a plurality of fasteners 123 are further uniformly arranged at the inner edge or the outer edge of the lower dispersion ring 120, and the plurality of fasteners 123 are used for detachably arranging the graphene oxide chitosan composite film 121 on the dispersion ring.

The graphene oxide chitosan composite membrane 121 has a rich and developed cavity structure and a multiple network structure, the material has good resilience and structural strength, and the composite membrane is not easy to damage and can be used for multiple times. After the non-woven fabric is used for wiping the test each time, the graphene oxide chitosan composite membrane 121 can be cleaned by ultrasonic cleaning equipment to remove adsorbed materials, and the composite membrane can be reused for many times.

The graphene oxide chitosan composite membrane 121 can be disassembled by arranging the fasteners 123, and after the graphene oxide chitosan composite membrane 121 is cleaned once, the graphene oxide chitosan composite membrane 121 can be disassembled, cleaned by ultrasonic cleaning and the like, and then repeatedly used on the lower dispersion ring 120.

Further, as shown in fig. 2 and 3, each fastening member 123 includes a pressing member 124 and a limiting member 125, a longitudinal section of the pressing member 124 is in a hook shape facing the lower dispersing ring 120, one side edge of the pressing member 124 is hinged to an edge of the lower dispersing ring 120, the limiting member 125 is disposed near the pressing member 124, one end of the limiting member 125 is connected to an edge of the lower dispersing ring 120, the other end of the limiting member 125 has a limiting head 126, the limiting head 126 extends toward the pressing member 124, and the pressing member 124 rotates to press the graphene oxide chitosan composite film 121 and then is limited by the limiting head 126.

The above-mentioned specific structure of the fastener 123 is only one embodiment shown in the drawings of the present application, and in other embodiments of the present application, the specific structure of the fastener 123 is not limited to the above-mentioned embodiment. The limiting member 125 has certain elasticity, and after the graphene oxide chitosan composite film 121 is arranged on the lower dispersing ring 120, the pressing member 124 is pressed down towards the upper surface of the lower dispersing ring 120, so that the pressing member 124 is buckled below the limiting head 126, and the lower side of the limiting head 126 abuts against the back surface of the pressing member 124 to realize the buckling of the graphene oxide chitosan composite film 121; when the graphene oxide chitosan composite film 121 needs to be detached, the pressing member 124 is pulled up in a direction away from the lower dispersion ring 120, and the pressing member 124 is released from the limit head 126, so that the graphene oxide chitosan composite film 121 can be detached.

The embodiment of the application further provides a positive electrode material vibrating screen device 10, which comprises a vibrating screen 11 and the positive electrode material dispersing device 100 arranged right below the feeding hole 12 of the vibrating screen 11.

The upper dispersion disc 110 is positioned 4 to 6cm (e.g. 4cm, 5cm or 6 cm) below the feed inlet 12.

The positive electrode material entering the positive electrode material vibrating screen device 10 from the feed inlet 12 first reaches the upper dispersion plate 110, falls into the lower dispersion ring 120 after being dispersed by the upper dispersion plate 110, is further dispersed on the lower dispersion ring 120, and impurities such as copper, zinc, chromium, lead and the like contained in the positive electrode material are adsorbed, and the positive electrode material dispersed by the lower dispersion ring 120 falls onto a screen mesh and is screened by an ultrasonic vibrating screen.

The vibrating screen 11 referred to in this application is an ultrasonic vibrating screen having a double-layer screen mesh, which is prior art. In practical applications, the top cover, the connecting rods, and the upper dispersion plate 110 of the vibrating screen may be integrally cast or welded to facilitate installation and use.

Every 3 tons of materials that sieve of shale shaker are cleared up, inspect graphene oxide chitosan complex film 121 during the clearance, and whether the inspection complex film damages, and the piece of damage is cleared up on the upper screen, does not get into the rear end equipment. The material adsorbed by the graphene oxide/chitosan composite film 121 is wiped with a nonwoven fabric (a nonwoven fabric impregnated with a color-developing agent). The non-woven fabric is developed to show that the metal impurity simple substance exists in the material.

To sum up, when the positive electrode material dispersing device 100 and the positive electrode material vibrating screen device 10 provided in the embodiment of the present application are used, the positive electrode material entering the vibrating screen 11 from the feed inlet 12 first reaches the upper dispersion plate 110, the positive electrode material falls from the edge of the upper dispersion plate 110 to the lower dispersion ring 120 under the dispersing action of the upper dispersion plate 110, and the metal impurities in the positive electrode material are adsorbed by the graphene oxide-chitosan composite film 121. After a certain amount of material is fed, when the vibrating screen is cleaned, the graphene oxide chitosan composite membrane 121 can be wiped by non-woven fabric soaked with a color developing agent, whether the impurity metal exists in the anode material or not is judged by observing whether a color development reaction occurs or not, so that the qualitative detection of the metal impurity element in the anode material is realized, if the impurity metal element is not well controlled by wiping, the impurity metal element in the production line is well controlled, and if the impurity metal element is not well controlled by wiping, the materials in each process of the production line are isolated, detected and treated by color development after wiping; the test is more representative for the sample adsorbed by the composite membrane. Adopt the anodal material dispersion devices 100 that this application provided to assist in detecting the metal impurities in the anodal material, detect back anodal material and can also continue to use, can not cause the anodal material waste that is used for the test.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A positive electrode material dispersing device is characterized by comprising an upper dispersing plate and a lower dispersing ring which are coaxially arranged and connected with each other;

the projection of the upper dispersion plate in the plane of the lower dispersion ring is positioned in the ring of the lower dispersion ring; one side of the lower dispersion ring, which is close to the upper dispersion plate, is provided with a graphene oxide chitosan composite membrane having an adsorption effect on copper.

2. The cathode material dispersion device according to claim 1, wherein a plurality of through holes in the order of millimeters are provided in the upper dispersion impeller.

3. The cathode material dispersion device according to claim 1, wherein a surface of the upper dispersion impeller has a tungsten carbide coating layer.

4. The cathode material dispersion apparatus according to claim 1, wherein an edge of the upper dispersion disk is connected to an inner edge of the lower dispersion ring by a plurality of connection rods.

5. The cathode material dispersion apparatus according to claim 4, wherein the lower dispersion ring is formed by detachably splicing a plurality of segment rings.

6. The cathode material dispersion apparatus according to claim 5, wherein the number of the segment rings is at least 3, the number of the connection rods is the same as the number of the segment rings, and each of the segment rings is connected to the upper dispersion plate by one of the connection rods connected to an inner edge thereof.

7. The cathode material dispersing device according to claim 1, wherein a plurality of fasteners are uniformly arranged at an inner edge or an outer edge of the lower dispersing ring, and the fasteners are used for detachably arranging the graphene oxide chitosan composite film on the dispersing ring.

8. The cathode material dispersion apparatus according to claim 7, wherein each of the fastening members includes a pressing member having a hook shape in a longitudinal section facing the lower dispersion ring, one side edge of the pressing member being hinged to an edge of the lower dispersion ring, and a stopper provided near the pressing member, one end of the stopper being connected to the edge of the lower dispersion ring, the other end of the stopper having a stopper extending toward the pressing member, the pressing member being rotated to press the graphene oxide/chitosan composite film and then being stopped by the stopper.

9. A positive electrode material vibrating screen device, which is characterized by comprising a vibrating screen and the positive electrode material dispersing device as claimed in any one of claims 1 to 8 arranged right below a feed inlet of the vibrating screen.

10. The anode material vibrating screen device according to claim 9, wherein the upper dispersion plate is arranged 4-6 cm below the feed inlet.

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