Device for removing metal dust from steel shell of lithium / sodium ion battery

Abstract

The utility model provides a device for removing metal dust from a lithium / sodium ion battery steel shell. The device specifically comprises a sealed cabin, a telescopic rod, a feeding frame, a porous tray, an electric heater and an ion fan, the sealed cabin is provided with a feeding cabin door, a platform is arranged in the sealed cabin, the platform is partially sunken to form a water tank device, and the water tank device is provided with a water inlet and a water outlet; the ion fan is fixed on the platform and is positioned above the horizontal position of the water tank; the electric heater is located in the sealed cabin and fixed to the top of the sealed cabin. The telescopic rod is fixed to the top in the sealed cabin and fixedly connected with the feeding frame. The hole-shaped tray can be completely arranged in the feeding frame and is movably connected with the feeding frame. When the device disclosed by the utility model is used for removing dust, metal dust or other dust on the surface of the steel shell can be cleaned up, so that a battery cell produced in the later use process of the steel shell is safer, and the performance is better guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of battery steel shell dust removal, concretely relates to a lithium / sodium ion battery steel shell metal dust removal device. BACKGROUND

[0002] The cylindrical metal steel shell is an important assembly component in the lithium / sodium ion cell production process and is the outermost sealing protective shell of the cell. The main production process of the steel shell is cutting after forming by stamping and drawing, and metal dust is inevitably generated in the cutting process. In the lithium / sodium ion cell production process, metal dust entering the inside of the cell may cause self-discharge of the cell to be large or even internal short circuit to cause the cell to catch fire and explode, so metal dust is the most strictly controlled pollution source of all cell production enterprises. Although the steel shell manufacturer has carried out dust removal treatment before leaving the factory, it is still difficult to completely eliminate, so most lithium / sodium cell production enterprises increase or additionally increase the process of metal dust treatment of the steel shell before assembly on the automatic equipment during production, and the dust removal mode mainly adopts vacuum negative pressure dust collection. However, the vacuum dust collection mode can effectively remove the metal dust on the inner wall or surface of the steel shell, but cannot achieve the most ideal degree, and some dust adhered relatively firmly cannot be completely cleaned. SUMMARY

[0003] The utility model aims at providing a lithium / sodium ion battery steel shell metal dust removal device, which is applied to the removal of metal dust from incoming steel shells in the cell production and assembly process to ensure that lithium / sodium ion cells will not mix with metal dust in the production process, thereby causing performance or safety hazards in the later use process of the cells.

[0004] The utility model realizes the following technical scheme:

[0005] A lithium / sodium ion battery steel shell metal dust removal device, characterized by comprising a sealed cabin, an extension rod, a feeding frame, a hole-shaped tray, an electric heater and an ion fan.

[0006] The sealed cabin is provided with an inlet cabin door, the inside of the sealed cabin is provided with a platform, the platform is partially concave to form a water tank, the water tank is provided with a water inlet and a water outlet, and the water inlet and the water outlet are connected with the outside of the sealed cabin.

[0007] The ion fan is fixed on the platform and is above the horizontal position of the water tank.

[0008] The electric heater is located in the sealed cabin and is fixed on the top of the sealed cabin.

[0009] The telescopic rod is fixed to the top of the sealed cabin and is fixedly connected with the feeding frame; the hole-shaped tray can be completely placed in the feeding frame and is movably connected with the feeding frame.

[0010] Preferably, the telescopic rod can make the feeding frame completely immerse in the water tank when being elongated and make the feeding frame completely leave the water tank when being contracted.

[0011] Preferably, the feeding frame is in the shape of "Fang" and the height can accommodate the hole-shaped tray and the battery steel shell.

[0012] Preferably, the water inlet is located above the water tank and the water outlet is located at the central position of the bottom of the water tank.

[0013] Preferably, the bottom of the water tank is inclined, facilitating the water to be discharged from the water outlet.

[0014] Preferably, the water inlet and the water outlet are connected with the outside of the sealed cabin through valves.

[0015] Compared with the prior art, the progress effect of the utility model is that the utility model can be applied to the process of removing metal dust from raw material steel shell before cylindrical lithium / sodium electric assembly, can effectively remove residual metal dust in the steel shell and avoid the metal dust from entering the inside of the electric core to cause safety hidden trouble. The device has simple structure, changes the existing vacuum dust collection into the main dust removal technical mode and increases the water washing, static electricity removing and drying steps. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed to be used in the embodiment description will be briefly described below. Obviously, the described drawings are only a part of the embodiments of the utility model, not all the embodiments, and the person skilled in the art can obtain other design schemes and drawings according to these drawings without paying creative labor.

[0017] Figure 1 It is a schematic view of the device of the utility model.

[0018] Among them, the signs are as follows: 1-sealed cabin; 101-feeding cabin door; 2-telescopic rod; 3-feeding frame; 4-electric heater; 5-ion fan; 6-platform; 601-water tank; 701-water inlet; 702-water outlet; 801, 802-valve; 9-hole-shaped tray; 10-battery steel shell. DETAILED DESCRIPTION

[0019] The utility model will be further described in combination with the drawings and specific embodiments. According to the following description, the advantages and characteristics of the utility model will be more clear.

[0020] It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clearly illustrate the purpose of the embodiments of this utility model. Please refer to the accompanying drawings to make the purpose, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and purposes achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] In this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0023] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] like Figure 1As shown in the figure, the components of a device for removing metal dust from the steel shell of a lithium / sodium ion battery proposed in this embodiment include: a sealed chamber 1, a feed chamber door 101, a telescopic rod 2, a loading frame 3, an electric heater 4, an ion blower 5, a platform 6, a water tank 601, a water inlet 701, a water outlet 702, and switches 801 and 802. A feed chamber door 101 is provided on the side of the sealed chamber 1. Inside the sealed chamber 1, there is a platform 6. Part of the platform 6 is recessed to form a water tank 601. The water tank 601 is provided with a water inlet 701 and a water outlet 702. The water inlet 701 and the water outlet 702 are connected to the outside of the sealed chamber through valves 801 and 802. The ion blower 5 is fixed on the platform and is above the horizontal position of the water tank 601. The electric heater 4 is located inside the sealed chamber 1 and is fixed to the top of the sealed chamber 1. The telescopic rod 2 is fixed to the inner top of the sealed chamber 1 and is fixedly connected to the loading frame 3.

[0025] In this application, when the telescopic rod 2 extends, the loading frame 3 can be completely immersed in the water tank 601, and when it contracts, the loading frame 3 can be completely removed from the water tank 601. The telescopic rod can run repeatedly, allowing the steel shell to be fixed and immersed in and taken out of the water multiple times. At the same time, when the steel shell is immersed in the water, it can be cleaned comprehensively.

[0026] In this application, the loading frame 3 is in a "C" shape and has a height that can accommodate the porous tray 9 and the battery steel shell 10.

[0027] In this application, the water inlet 701 is located above the water tank 601, and the water outlet 702 is located at the central position of the bottom of the water tank 601. The bottom of the water tank 601 is inclined to facilitate the discharge of water from the water outlet 702. The water inlet and the water outlet can be continuously opened to maintain the initial flowing water state in the water tank, and the washed metal dust can be quickly carried away.

[0028] In this application, an electric heater 4 and an ion blower 5 are arranged in the sealed chamber. There is no need to connect pipes, reducing the air volume loss caused by long pipes, and the installation is more convenient. Using the electric heating method, similar to the way of a conventional electric oven, it also reduces the heat loss caused by the air duct. The ion blower can play the role of electrostatic dust removal, causing the dust to fall off and be removed.

[0029] The following steps are followed when using this utility model: ① Place the battery steel shell 10 upside down on the perforated tray 9, open the feed chamber door 101, and place the battery steel shell 10 together with the perforated tray 9 into the loading frame 3; ② Open the inlet valve 801, wait for the water level in the tank to rise to a suitable height, open the outlet valve 802, control the outlet valve 802 to maintain the same water flow as the inlet valve 801, and close the feed chamber door 101; ③ Control the telescopic rod 2 to descend so that the loading frame 3 is completely submerged in the water. Minutes later, control the telescopic rod 2 to return to the origin, causing the feeding frame 3 to detach from the water surface. The telescopic rod 2 drives the feeding frame 3 to clean back and forth 3 times before returning to the origin; ④ Close the inlet valve 801 and open the outlet valve 802. After the water tank is emptied, close the outlet valve 802 and turn on the electric heater 4 and ion fan 5 for drying at 60℃ for 30 minutes; ⑤ Turn off the electric heater 4 and ion fan 5, put on high-temperature resistant gloves, open the feeding chamber door and take out the perforated tray 9 and the battery steel shell 10.

[0030] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for removing metal dust from the steel casing of a lithium / sodium ion battery, characterized in that, It includes a sealed chamber, a telescopic rod, a loading frame, a perforated tray, an electric heater and an ion blower; The sealed chamber is provided with a feed hatch. Inside the sealed chamber, there is a platform. Part of the platform is recessed to form a water tank. The water tank is provided with a water inlet and a water outlet, and the water inlet and the water outlet are connected to the outside of the sealed chamber; The ion blower is fixed on the platform and is above the horizontal position of the water tank; The electric heater is located inside the sealed chamber and is fixed to the top of the sealed chamber; The telescopic rod is fixed to the inner top of the sealed chamber and is fixedly connected to the loading frame; the perforated tray can be completely placed inside the loading frame and is movably connected to the loading frame.

2. The device for removing metal dust from the steel casing of a lithium / sodium ion battery according to claim 1, characterized in that, When the telescopic rod extends, the loading frame can be completely immersed in the water tank, and when it contracts, the loading frame can be completely lifted out of the water tank.

3. The device for removing metal dust from the steel casing of a lithium / sodium ion battery according to claim 2, characterized in that, The loading frame is in an "L" shape and its height is such that it can accommodate the perforated tray and the battery steel shell.

4. The device for removing metal dust from the steel casing of a lithium / sodium ion battery according to claim 3, characterized in that, The water inlet is located above the water tank, and the water outlet is located at the central position of the bottom of the water tank.

5. The device for removing metal dust from the steel casing of a lithium / sodium ion battery according to claim 4, characterized in that, The bottom of the water tank is inclined to facilitate the discharge of water from the water outlet.

6. The device for removing metal dust from the steel casing of a lithium / sodium ion battery according to claim 5, characterized in that, The water inlet and the water outlet are connected to the outside of the sealed chamber through valves.

Images