Anti-deposition anode nickel strap slurry hopper

Abstract

The utility model relates to the technical field of battery sizing equipment, in particular to an anti-deposition anode nickel strap slurry hopper which comprises a hopper body, a slurry inlet main pipe is arranged at the bottom of the hopper body, and a plurality of branch pipes are distributed between the slurry inlet main pipe and the hopper body according to a preset sequence; wherein the plurality of branch pipes comprise a central pipe. The structure improvement of a slurry hopper bottom feeding mode is adopted, the slurry feeding mode is optimized, it is ensured that the slurry coating process is even and efficient, slurry enters from the two ends of the slurry inlet main pipe at the bottom of the hopper body and then is divided through the seven branch pipes, the sum of the sectional areas of the seven branch pipes does not exceed the sectional area of the slurry inlet main pipe, and the slurry coating efficiency is improved. The slurry hopper is arranged at the bottom of the hopper body according to a preset mode, so that the slurry can uniformly enter the slurry hopper and is prevented from being deposited at the bottom of the hopper body, the slurry coating process is more uniform, and the slurry coating quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery sizing equipment, in particular to an anti-deposition positive electrode nickel slurry hopper. Background Art

[0002] The slurry production of nickel-metal hydride batteries is a key step in the battery manufacturing process, which involves uniformly coating the slurry mixed with active materials, conductive agents and binders on the battery's current collector. This process is crucial to the performance and life of the battery, because the uniformity and quality of the coating directly affect the electrochemical performance of the battery.

[0003] In the slurry production of nickel-hydrogen batteries, the traditional slurrying method is usually to inject the slurry from the top of the slurry hopper, and then use a slurry pulling machine to evenly bring the slurry on it. For example, Chinese patent announcement No. "CN205248378U" discloses a nickel-hydrogen battery positive electrode slurry pulling mold, which includes a slurry hopper, a slurry rolling device and an automatic scraping device; the slurry rolling device includes an active roller driven by a power device and two driven rollers, and the automatic scraping device includes two silicone soft scrapers.

[0004] The key to the sizing process is the uniformity of the various components of the slurry. The key to ensuring the uniformity of the various components of the slurry is that the slurry does not settle in the hopper. The previous sizing process was that the slurry entered the hopper from the top of the hopper. Due to the effect of gravity, the slurry would naturally settle at the bottom of the hopper, affecting the sizing quality. Summary of the invention

[0005] The utility model aims to solve the shortcomings of the original top slurrying method in the prior art, such as the slurry will naturally settle at the bottom of the slurry bucket due to gravity, and proposes an anti-deposition positive nickel strip slurry bucket.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A deposition-resistant positive nickel strip slurry hopper is designed, comprising a hopper body, a slurry inlet main pipe is arranged at the bottom of the hopper body, and a plurality of branch pipes are distributed between the slurry inlet main pipe and the hopper body in a predetermined order;

[0008] The plurality of branch pipes include a central pipe, with a first pipe, a second pipe and a third pipe symmetrically arranged on both sides of the central pipe, and the diameters of the first pipe, the second pipe and the third pipe decrease in sequence.

[0009] Furthermore, a guide is provided inside the slurry inlet main pipe and below the axis of the central pipe, and the guide is used to guide the slurry entering from both ends of the slurry inlet main pipe into the central pipe.

[0010] Furthermore, the guide member has triangular seats with guiding arc surfaces on both sides, and the two guiding arc surfaces are symmetrically distributed on both sides of the axis of the central tube.

[0011] Furthermore, it also includes a shielding component arranged inside each branch pipe, and the shielding component is used to shield the upper pipe opening of the branch pipe.

[0012] Furthermore, the shielding component includes a support ring fixedly installed inside the branch pipe, and a blocking ball is fixedly installed on the top of the support ring through a spring, and the blocking ball blocks the upper pipe opening of the branch pipe.

[0013] Furthermore, the sum of the cross-sectional areas of the plurality of branch pipes is not greater than the cross-sectional area of ​​the slurry inlet main pipe.

[0014] Furthermore, the plurality of branch pipes are connected to the slurry inlet main pipe by welding.

[0015] The utility model proposes an anti-deposition positive nickel strip slurry hopper, which has the beneficial effect that: the utility model adopts a structural improvement on the bottom feeding method of the slurry hopper, aiming to optimize the slurry feeding method and ensure that the slurry coating process is uniform and efficient, by allowing the slurry to enter from both ends of the slurry inlet main pipe at the bottom of the hopper body, and then being diverted through seven branch pipes, the sum of the cross-sectional areas of the seven branch pipes will not exceed the cross-sectional area of ​​the slurry inlet main pipe, and they are arranged in a predetermined manner at the bottom of the hopper body, such a design can ensure that the slurry enters the slurry hopper uniformly, avoids deposition at the bottom of the hopper body, thereby making the slurry coating process more uniform and improving the slurrying quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the central tube structure of the utility model;

[0018] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of area A.

[0019] In the figure: 1, bucket body; 2, slurry inlet main pipe; 3, branch pipe; 31, center pipe; 32, first pipe; 33, second pipe; 34, third pipe; 4, guide member; 41, guide arc surface; 5, shielding member; 51, support ring; 52, spring; 53, blocking ball. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-3 An embodiment of the utility model discloses a deposit-proof positive nickel strip slurry hopper, comprising a hopper body 1, a slurry inlet main pipe 2 is arranged at the bottom of the hopper body 1, and a plurality of branch pipes 3 are distributed between the slurry inlet main pipe 2 and the hopper body 1 in a predetermined order. Of course, those skilled in the art know that a plurality of slurry inlet main pipes 2 can be arranged side by side and a plurality of branch pipes 3 can be configured according to the size of the hopper body 1 to enhance the deposit-proof effect;

[0022] Among them, the multiple branch pipes 3 include a central pipe 31, and the first pipe 32, the second pipe 33 and the third pipe 34 are symmetrically arranged on both sides of the central pipe 31 axially. The diameters of the first pipe 32, the second pipe 33 and the third pipe 34 are reduced successively, that is, the branch pipes 3 described in this embodiment are provided with seven, specifically including a central pipe 31 and two first pipes 32, the second pipe 33 and the third pipe 34 respectively. The slurry is fed from the inlets at both ends of the slurry main pipe 2 at the bottom of the slurry hopper, and is diverted from the bottom to the bucket body 1 through the seven branch pipes 3.

[0023] Specifically, in the present embodiment, the plurality of branch pipes 3 are welded and connected to the slurry inlet main pipe 2. Secondly, the sum of the cross-sectional areas of the plurality of branch pipes 3 is not greater than the cross-sectional area of ​​the slurry inlet main pipe 2. The purpose of designing a small cross-sectional area is to avoid the problem of insufficient pressure supply to the slurry inlet main pipe 2 due to an excessively large flow channel opening.

[0024] In some embodiments, in the utility model, a guide member 4 is provided inside the slurry inlet main pipe 2 and below the axis of the central pipe 31, and the guide member 4 is used to guide the slurry entering from both ends of the slurry inlet main pipe 2 into the central pipe 31. Considering that the slurry inlet main pipe 2 adopts a two-end feeding method, the slurry at both ends will merge and impact at the center of the slurry inlet main pipe 2. In order to reduce the impact force and smoothly guide the slurry into the central pipe 31, the guide member 4 is designed in the utility model to ensure that the slurry on the two flow paths can eventually enter the central pipe 31 at the same time and surge upward.

[0025] Specifically, Figure 2 and Figure 3 As shown, in this embodiment, the guide member 4 has triangular seats with guiding arc surfaces 41 on both sides, and the two guiding arc surfaces 41 are symmetrically distributed on both sides of the axis of the central tube 31, that is, in this embodiment, the slurry is guided by the design of two guiding arc surfaces 41 to avoid the decompression problem caused by the collision of two slurries. It should be pointed out that in this embodiment, the slurry inlet main pipe 2 can be welded by two pipes. During the specific assembly, the above-mentioned triangular seat can be welded in one pipe first, and then the other pipe can be welded to complete the assembly.

[0026] In some embodiments, the utility model further comprises a shielding component 5 arranged inside each branch pipe 3 , and the shielding component 5 is used for the upper pipe opening of the branch pipe 3 .

[0027] Based on the above embodiments, Figure 3 As shown, the shielding component 5 in this embodiment includes a support ring 51 fixedly installed inside the branch pipe 3, and a baffle ball 53 is fixedly installed on the top of the support ring 51 by a spring 52. The baffle ball 53 blocks the upper pipe opening of the branch pipe 3, that is, in this embodiment, when slurry is applied, the slurry will resist the baffle ball 53 and move upward. When the slurry flows outward along the bottom of the baffle ball 53, firstly, the area of ​​outward flow can be increased to enhance the anti-deposition effect of the bucket body 1. Secondly, the gap formed by the baffle ball 53 and the mouth of the branch pipe 3 can also increase the outflow pressure of the slurry. After the slurrying is completed, the baffle ball 53 is reset, and the slurry can be prevented from being deposited in the slurry inlet main pipe 2, which greatly optimizes the anti-deposition and ease of use.

[0028] In summary, the utility model adopts a structural improvement on the bottom feeding of the slurry hopper, aiming to optimize the slurry feeding method and ensure that the slurry coating process is uniform and efficient. The slurry enters from both ends of the slurry inlet main pipe 2 at the bottom of the hopper body 1 and then is diverted through seven branch pipes 3. The sum of the cross-sectional areas of the seven branch pipes 3 will not exceed the cross-sectional area of ​​the slurry inlet main pipe 2, and they are arranged in a predetermined manner at the bottom of the hopper body 1. Such a design can ensure that the slurry enters the slurry hopper uniformly and avoids deposition at the bottom of the hopper body 1, thereby making the slurry coating process more uniform and improving the quality of slurry coating.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A deposition-resistant positive nickel slurry hopper, comprising a hopper body (1), characterized in that: A slurry inlet main pipe (2) is arranged at the bottom of the bucket body (1), and a plurality of branch pipes (3) are distributed in a predetermined order between the slurry inlet main pipe (2) and the bucket body (1); The plurality of branch pipes (3) include a central pipe (31), with a first pipe (32), a second pipe (33) and a third pipe (34) being symmetrically arranged on both sides of the central pipe (31) in sequence, and the diameters of the first pipe (32), the second pipe (33) and the third pipe (34) are successively reduced.

2. The anti-deposition positive nickel slurry hopper according to claim 1, characterized in that: A guide member (4) is provided inside the slurry inlet main pipe (2) and below the axis of the central pipe (31). The guide member (4) is used to guide the slurry entering from both ends of the slurry inlet main pipe (2) into the central pipe (31).

3. The anti-deposition positive nickel slurry hopper according to claim 2, characterized in that: The guide member (4) has triangular seats with guide arc surfaces (41) on both sides, and the two guide arc surfaces (41) are symmetrically distributed on both sides of the axis of the central tube (31).

4. The anti-deposition positive nickel slurry hopper according to claim 1, characterized in that: It also comprises a shielding component (5) arranged inside each branch pipe (3), wherein the shielding component (5) is used to shield the upper pipe opening of the branch pipe (3).

5. The anti-deposition positive nickel slurry hopper according to claim 4, characterized in that: The shielding component (5) comprises a support ring (51) fixedly mounted inside the branch pipe (3), a blocking ball (53) fixedly mounted on the top of the support ring (51) via a spring (52), and the blocking ball (53) shields the upper pipe opening of the branch pipe (3).

6. The anti-deposition positive nickel slurry hopper according to claim 1, characterized in that: The sum of the cross-sectional areas of the plurality of branch pipes (3) is no greater than the cross-sectional area of ​​the slurry inlet main pipe (2).

7. The anti-deposition positive nickel slurry hopper according to any one of claims 1 to 6, characterized in that: The plurality of branch pipes (3) are connected to the slurry inlet main pipe (2) by welding.

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