CN219943180U - Deironing device and lithium battery dry powder feeding mechanism - Google Patents

Abstract

The utility model discloses an iron removing device and a lithium battery dry powder feeding mechanism, which have the advantage of being convenient for cleaning iron particles. Wherein, deironing device includes bearing structure, many sleeves and many magnetic bars, and many sleeves are installed in bearing structure, and the magnetic bar is detachably and packs into in the sleeve, seals between magnetic bar and the sleeve.

Description

Deironing device and lithium battery dry powder feeding mechanism

Technical Field

The utility model relates to the field of lithium battery production, in particular to an iron removing device and a lithium battery dry powder feeding mechanism.

Background

In the production process of the lithium battery, the steps of powder input, mixing proportion, stirring uniformity and the like are required to be carried out on each raw material to form lithium battery slurry, and then the lithium battery slurry is matched with a lithium battery structure to form the lithium battery.

When iron particles are contained in lithium battery slurry, the influence on the product performance of a lithium battery is large, so that the iron remover is specially equipped in the links of powder input, slurry mixing and the like, wherein the iron remover is the most widely applied magnetic rod type iron remover, and the removal of the iron particles on a magnetic rod is difficult after the magnetic rod type iron remover adsorbs the iron particles.

Therefore, there is a need for an iron removal device and lithium battery dry powder feeding mechanism that facilitate cleaning of iron particles to overcome the above-mentioned drawbacks.

Disclosure of Invention

The utility model aims to provide an iron removing device which is convenient for cleaning iron particles.

The utility model further aims to provide a lithium battery dry powder feeding mechanism which is convenient for cleaning iron particles.

In order to achieve the purpose, the iron removing device is used for removing iron from lithium battery dry powder or slurry. The iron removing device comprises a supporting structure, a plurality of sleeves and a plurality of magnetic rods, wherein the sleeves are arranged on the supporting structure, the magnetic rods are detachably arranged in the sleeves, and the magnetic rods are sealed with the sleeves.

Preferably, the sleeves are arranged at intervals.

Preferably, the lengths of the sleeves are gradually shortened from the middle to the two sides.

Preferably, the support structure is a frame structure.

Preferably, the support structure is a square frame through which the sleeve passes.

Preferably, one end of the sleeve is arranged in a closed mode, the other end of the sleeve is arranged in an open mode, and the magnetic rod penetrates into the sleeve through the open end of the sleeve.

Preferably, the magnetic rod and the open end of the sleeve are sealed by a sealing ring or by a protective cover.

Preferably, the sleeve is a non-magnetic metal cylinder or a plastic cylinder.

In order to achieve the other purpose, the lithium battery dry powder feeding mechanism comprises a feeding hopper and the iron removing device. The feeding hopper is provided with a feeding cavity, the iron removing device is arranged in the feeding cavity, the top of the feeding hopper is provided with a feeding port communicated with the feeding cavity, and the bottom of the feeding hopper is provided with a discharging port communicated with the feeding cavity.

Preferably, the lithium battery dry powder feeding mechanism further comprises a cover body, wherein the cover body is detachably covered on the feeding hopper, and the feeding cavity forms a negative pressure environment when the cover body is covered on the feeding hopper.

When iron particles adsorbed by the iron removing device need to be cleaned, the magnetic rod is pulled out of the sleeve, the iron particles originally adsorbed on the outer side surface of the sleeve lose the attraction of magnetic attraction and naturally fall down, and the magnetic rod does not adsorb the iron particles, so that the magnetic rod does not need to be cleaned, the cleaning difficulty is greatly reduced, and the cleaning process is simple and convenient and labor-saving.

It is understood that, because the lithium battery dry powder feeding mechanism is provided with the iron removing device, when iron particles need to be cleaned, the iron particles adsorbed by the iron removing device can be removed according to the method after the iron removing device is taken out from the feeding cavity, so that the cleaning operation is simple and convenient.

Drawings

Fig. 1 is a perspective view of a lithium battery dry powder charging mechanism of the present utility model when a cover is opened.

Fig. 2 is a top view of the lithium battery dry powder charging mechanism of the present utility model.

Fig. 3 is a top view of the lithium battery dry powder charging mechanism shown in fig. 2 after hiding the cover.

Fig. 4 is a cross-sectional view taken along line A-A in fig. 2.

Fig. 5 is a perspective view of the iron removing device of the present utility model.

Fig. 6 is a perspective view of the iron removing device shown in fig. 5, in which one magnetic rod is detached from the sleeve.

Fig. 7 is a perspective view of the iron removing device shown in fig. 5 with the magnetic bars removed entirely.

Detailed Description

In order to describe the technical content and constructional features of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.

As shown in fig. 1 to 4, the lithium battery dry powder charging mechanism 100 of the present utility model includes a charging hopper 10 and an iron removing device 20. The electrode active material, the conductive agent, the binder, the dispersant, and the like are charged into the slurry mixer through the charging hopper 10. Since some iron particles are difficult to avoid in the powder, the iron particles in the powder need to be removed, so that the performance of the lithium battery is not affected. In this regard, the feeding hopper 10 of the present utility model has a feeding chamber 11, and the iron removing device 20 is disposed in the feeding chamber 11. The top of the feeding hopper 10 is provided with a feeding port 12 communicated with the feeding cavity 11, and the bottom of the feeding hopper 10 is provided with a discharging port 13 communicated with the feeding cavity 11. After the powder is put into the hopper 10, when the powder passes through the iron removing device 20, iron particles in the powder are adsorbed by the iron removing device 20, the iron particles in the powder are removed, and finally the powder is discharged from the discharge hole 13.

Because the powder is put into the lithium battery dry powder feeding mechanism 100, in order to avoid dust emission, the lithium battery dry powder feeding mechanism 100 further comprises a cover body 30. The cover 30 is detachably covered on the feeding hopper 10, and the feeding cavity 11 forms a negative pressure environment when the cover 30 is covered on the feeding hopper 10. After the feeding cavity 11 forms a negative pressure environment, dust can be greatly inhibited from drifting out of the feeding port 12. The negative pressure environment of the feeding cavity 11 is realized by vacuumizing. Notably, the discharge hole 13 is connected with the slurry mixing machine, and powder flowing out of the discharge hole 13 finally falls into the slurry mixing machine for mixing.

As shown in fig. 4 to 6, in the embodiment provided by the present utility model, the iron removing device 20 is used for removing iron from lithium battery dry powder, but according to practical application needs, the iron removing device 20 may also be used for removing iron from lithium battery slurry.

Wherein, deironing device 20 includes bearing structure 21, a plurality of sleeves 22 and a plurality of bar magnets 23. A plurality of sleeves 22 are mounted on the supporting structure 21, magnetic rods 23 are detachably arranged in the sleeves 22, and the magnetic rods 23 are sealed with the sleeves 22. The support structure 21 provides support for the sleeve 22, and when powder passes through the sleeve 22, the iron particles are attracted by the magnetic attraction force of the magnetic rod 23 and adsorbed on the outer side surface of the sleeve 22, so that the iron particles of the powder are removed. When iron particles need to be cleaned, the iron removing device 20 is taken out from the feeding cavity 11, then the magnetic rod 23 is pulled out from the sleeve 22, the iron particles which are originally adsorbed on the outer side surface of the sleeve 22 lose the attraction of the magnetic attraction and naturally fall down, and the magnetic rod 23 does not adsorb the iron particles, so that the magnetic rod 23 is not required to be cleaned, the cleaning difficulty is greatly reduced, and the cleaning process is simple and convenient and labor-saving.

As shown in fig. 3 to 7, the plurality of sleeves 22 are disposed at intervals from each other. After the powder is thrown, the powder flows along the direction indicated by the black arrow in fig. 4, the powder passes between the two sleeves 22, the powder is scattered by the sleeves 22, and iron particles in the powder can be better adsorbed.

Further, the lengths of the sleeves 22 are gradually shortened from the middle to the two sides, most of powder flows through the middle of the feeding cavity 11, less powder flows through the two sides, the middle sleeve 22 is longer, the coverage area is larger, iron particles in the powder can be adsorbed better, the sleeves 22 on the two sides are smaller in the coverage area, and the iron particles can be adsorbed effectively enough, so that the design is also beneficial to saving materials.

Preferably, the sleeve 22 is a non-magnetic metallic cylinder, such as a stainless steel cylinder, which is structurally stable, not easily rusted, and easily magnetically attracted to the iron particles. Of course, according to practical needs, the sleeve 22 can also be a plastic cylinder, the plastic cylinder does not have iron, so that powder is prevented from falling into scrap iron due to impact abrasion, and the plastic cylinder can be made of hard plastic so as to strengthen the structural rigidity of the plastic cylinder.

As shown in fig. 3 to 7, the supporting structure 21 is a frame structure, which is simple in structure and saves materials. Further, the supporting structure 21 is a square frame, the sleeve 22 penetrates through the square frame, and the square frame provides enough support for the sleeve 22, so that materials are saved, and the weight is reduced. The square frame can be penetrated by the sleeve 22 in a perforating way, and after the sleeve 22 is penetrated, the sleeve 22 can be fixed on the square frame in a welding way and the like, but the sleeve 22 and the square frame are not fixed together.

As shown in fig. 5 to 7, one end of the sleeve 22 is arranged in a closed manner, the other end of the sleeve 22 is arranged in an open manner, and the magnetic rod 23 penetrates into the sleeve 22 through the open end of the sleeve 22. The iron particles cannot enter the sleeve 22 from the closed end of the sleeve 22, so that the sealing of the open end of the sleeve 22 is only needed to be finished, and the tightness is ensured.

Specifically, the magnetic rod 23 and the open end of the sleeve 22 are sealed by a seal ring (not shown). For example, the sealing ring is sleeved on the magnetic rod 23, when the magnetic rod 23 penetrates into the sleeve 22, the sealing ring is propped against the inner side wall of the opening end of the sleeve 22, the sealing ring is extruded, the sealing between the magnetic rod 23 and the sleeve 22 is realized, and iron particles are prevented from entering the inner cavity of the sleeve 22. Of course, according to practical needs, the open ends of the magnetic rod 23 and the sleeve 22 may be sealed by means of a protective cover (not shown), i.e. after the magnetic rod 23 penetrates into the sleeve 22, the protective cover is used to cover the exposed portion of the magnetic rod 23, and the protective cover is screwed/clamped/buckled to the open end of the sleeve 22, so that the protective cover plays a role of blocking at this time, and sealing between the magnetic rod 23 and the open end of the sleeve 22 is achieved.

In use, the discharge port 13 of the hopper 10 is engaged with the pulper. The cover body 30 is opened, powder is put into the feeding cavity 11, when the powder passes through the iron removing device 20, the powder passes through the two sleeves 22, iron particles in the powder are adsorbed on the outer side surfaces of the sleeves 22 due to the magnetic attraction effect of the magnetic rods 23, and finally the powder flows out of the discharge hole 13 and flows into the slurry mixing machine.

The foregoing disclosure is only illustrative of the preferred embodiments of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.

Claims (10)

1. The iron removing device is used for removing iron from lithium battery dry powder or slurry and is characterized by comprising a supporting structure, a plurality of sleeves and a plurality of magnetic rods, wherein the sleeves are arranged on the supporting structure, the magnetic rods are detachably arranged in the sleeves, and the magnetic rods are sealed with the sleeves.

2. The iron removing apparatus as set forth in claim 1, wherein a plurality of said sleeves are disposed at intervals from each other.

3. The iron removing device according to claim 1, wherein the length of the plurality of sleeves is gradually shortened from the middle to the two sides.

4. The iron removal device of claim 1, wherein the support structure is a frame structure.

5. The iron removal device of claim 1, wherein the support structure is a square frame through which the sleeve passes.

6. The iron removing device according to claim 1, wherein one end of the sleeve is arranged in a closed manner, the other end of the sleeve is arranged in an open manner, and the magnetic rod penetrates into the sleeve through the open end of the sleeve.

7. The iron removing apparatus as set forth in claim 6, wherein said magnetic rod and said open end of said sleeve are sealed by a seal ring or by a protective cover.

8. The iron removal device of claim 1, wherein the sleeve is a non-magnetic metal cylinder or a plastic cylinder.

9. Lithium battery dry powder feeding mechanism, characterized by, including going into hopper and the deironing device of any one of claims 1-8, go into the hopper and have a pan feeding chamber, deironing device locates in the pan feeding chamber, the top of going into the hopper is formed with the feed inlet with pan feeding chamber intercommunication, the bottom of going into the hopper is formed with the discharge gate of pan feeding chamber intercommunication.

10. The lithium battery dry powder charging mechanism of claim 9, further comprising a cover detachably covering the charging hopper, wherein the charging cavity forms a negative pressure environment when the cover is covering the charging hopper.