A water-based ceramic slurry iron removal filtration system

Abstract

The utility model discloses a water-based ceramic slurry iron removal filtration system, comprising a feeding device, a filtering device and an iron removal device; the filtering device and the iron removal device are connected through a guide pipe; the feeding device includes a feeding valve and a delivery pipe, which are used to deliver slurry to the filtering device and the iron removal device, adjust the slurry coating amount and provide the power for the slurry circulation flow; the filtering device is used to separate the gel particles in the ceramic slurry; the iron removal device is used to adsorb and remove impurities such as iron, cobalt, and nickel in the slurry. The device system greatly improves the safety performance of the coating diaphragm during use under the premise of ensuring the slurry coating requirements. After a period of use, the utility model can take out the filter by a handle to clean the impurities on the electromagnetic filter net. It is easy to use and replace, saving production costs and workers' labor.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium batteries, in particular to a water-based ceramic slurry iron removal and filtering system. Background Art

[0002] The existing lithium battery separator iron removal filtration system uses aqueous ceramic slurry. Its principle is to mix the slurry on the stirring device and pass it through a small demagnetization tank for demagnetization. The system cannot effectively remove other impurity elements and larger particles in the aqueous ceramic slurry during output, and thus cannot ensure the safety of lithium battery separators in the use of lithium batteries. The aqueous slurry contains some impurities, among which the presence of iron impurities affects the performance of the separator in the battery to a certain extent. In view of this, this utility model application is specially filed. Utility Model Content

[0003] In order to solve the technical problems existing in the background technology, the utility model proposes a water-based ceramic slurry iron removal filtration system.

[0004] The utility model proposes a water-based ceramic slurry iron removal and filtration system, comprising a feeding device, a filtering device and an iron removal device;

[0005] The filtering device and the iron removal device are connected via a flow guide pipe;

[0006] The feeding device includes a feeding valve and a delivery pipe, which are used to deliver slurry to the filtering device and the iron removal device, adjust the amount of slurry coating and provide power for the circulation of slurry;

[0007] The filtering device is used to separate gel particles in the ceramic slurry;

[0008] The iron removal device is used to remove impurities such as iron, cobalt, nickel, etc. in the slurry by adsorption.

[0009] Preferably, the filtering device comprises a carrying plate and a filter screen, and the filter screen is movably installed in the middle of the carrying plate.

[0010] Preferably, the pore size of the filter is 100 mesh.

[0011] Preferably, a handle is provided at one end of the carrying plate and a lock is installed on the handle.

[0012] Preferably, the iron removal device comprises an electromagnetic net and a circular pad, the electric coil on the electromagnetic net is connected in series to the circular pad, and the circular pad is used to output current to the electromagnetic net to form a magnetic field to absorb magnetic impurities in the slurry.

[0013] Preferably, the electromagnetic net has two layers in the vertical direction, the mesh size of the electromagnetic net is 10mm×10mm, the mesh diameter of the first layer of the electromagnetic net is larger than the mesh diameter of the second layer, and the first and second layers of the electromagnetic net are both circular.

[0014] Preferably, a diaphragm pump is installed on the flow guide pipe.

[0015] In the utility model, a diaphragm slurry iron removal filtration system is proposed, including a diaphragm pump, a filter screen, an electromagnetic net, a carrier plate, a circular pad, a guide tube, etc., wherein the filter screen is installed in the middle of the carrier plate, and the iron removal device is installed on one side of the filter device. This design realizes the function of rapid filtration and adsorption of impurities and iron impurities in the ceramic slurry. The system combines the iron removal device and the filter device, and can adsorb and remove impurities such as iron, cobalt, and nickel in the slurry while separating the gel particles in the ceramic slurry. Under the premise of ensuring the slurry coating requirements, the device system greatly improves the safety performance of the coating diaphragm during use. After a period of use, the utility model can take out the filter by the handle and clean the impurities on the electromagnetic filter screen. It is easy to use and replace, saving production costs and workers' labor.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the iron removal device in the utility model.

[0019] Figure 3 It is a structural schematic diagram of the filtering device in the utility model.

[0020] Explanation of the numbers in the figure: 1. Electromagnetic net; 2. Circular pad; 3. Flow guide tube; 4. Diaphragm pump; 5. Air pressure regulating valve; 6. Carrying plate; 7. Electric coil; 8. Delivery pipe; 9. Filter net. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0022] like Figure 1-Figure 3A water-based ceramic slurry iron removal and filtration system is shown, comprising a feeding device, a filtration device and an iron removal device;

[0023] The filtering device and the iron removal device are connected via a flow guide pipe 3;

[0024] The feeding device includes a feeding valve and a delivery pipe 8, which are used to deliver slurry to the filtering device and the iron removal device, adjust the amount of slurry coating and provide power for the circulation of slurry;

[0025] The filtering device is used to separate gel particles in the ceramic slurry;

[0026] The iron removal device is used to remove impurities such as iron, cobalt, nickel, etc. in the slurry by adsorption.

[0027] Preferably, the filtering device comprises a carrier plate 6 and a filter screen 9 , and the filter screen 9 is movably installed in the middle of the carrier plate 6 .

[0028] Preferably, the pore size of the filter screen 9 is 100 mesh.

[0029] Preferably, a handle is provided at one end of the carrying plate 6 and a lock is installed on the handle to facilitate subsequent disassembly, cleaning and installation by personnel.

[0030] Preferably, the iron removal device comprises an electromagnetic net 1 and a circular pad 2, wherein the electric coil 7 on the electromagnetic net 1 is connected in series to the circular pad 2, and the circular pad 2 is used to output current to the electromagnetic net 1 to form a magnetic field to absorb magnetic impurities in the slurry.

[0031] Preferably, the electromagnetic net 1 has two layers in the vertical direction, the mesh size of the electromagnetic net 1 is 10mm×10mm, the mesh diameter of the first layer of the electromagnetic net 1 is larger than the mesh diameter of the second layer, and the first and second layers of the electromagnetic net 1 are both circular.

[0032] Preferably, a diaphragm pump 4 is installed on the flow guide pipe 3 .

[0033] In the working process of this embodiment: Figure 1 As shown, when the slurry is transported to the upper and lower electromagnetic nets 1 through the conveying pipe 8 on the platform and a certain voltage is transmitted to the upper and lower electromagnetic nets 1 through the electric coil 7, the magnetic impurities contained in the ceramic slurry can be effectively adsorbed in the electromagnetic nets 1, wherein the circular pad 2 is used to fix and clean the upper and lower electromagnetic nets 1, wherein the distance between the two electromagnetic nets 1 is 10 cm, which can better play the role of demagnetization.

[0034] After the delivery pipe 8 is connected to the electromagnetic net 1 and the circular pad 2, it is connected to the guide pipe 3 and the diaphragm pump 4 so that the slurry can be delivered to the carrier plate 6;

[0035] The demagnetized slurry is transported to the filter screen 9 in the carrier plate 6, which can effectively filter out large particles and impurities in the slurry, thereby ensuring that the impact of the slurry on the battery during the subsequent coating is minimized. The air pressure regulating valve 5 on the discharge port at the other end is connected, so that the air pressure regulating valve 5 can be used to control the amount of slurry transported to the coating station.

[0036] During operation, the flow rate of the slurry is controlled by the air pressure regulating valve 5 on the feeding device. Generally, the air pressure on the regulating valve is maintained between 0.2 MPa and 0.3 MPa. If the air pressure is too high or too low, the slurry cannot flow normally. When the slurry flows through the above-mentioned device, the safety of the slurry coating in lithium batteries can be guaranteed.

[0037] In order to better illustrate the actual application effect of this device, the detection results of magnetic foreign matter before and after treatment of a certain ceramic slurry are listed in the following table. Through data analysis, it can be seen that this device has an excellent treatment effect on magnetic foreign matter in ceramic slurry and has a high promotion value.

[0038]

[0039] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] 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 water-based ceramic slurry iron removal filtration system, characterized in that: It includes a feeding device, a filtering device and an iron removal device; The filtering device and the iron removal device are connected via a flow guide pipe (3); The feeding device comprises a feeding valve and a delivery pipe (8) for delivering slurry to the filtering device and the iron removal device, adjusting the amount of slurry coating and providing power for the circulation of the slurry; The filtering device is used to separate gel particles in the ceramic slurry; The filtering device comprises a carrier plate (6) and a filter screen (9), wherein the filter screen (9) is movably mounted in the middle of the carrier plate (6); The iron removal device comprises an electromagnetic net (1) and a circular pad (2); the electromagnetic net (1) has an electric coil (7) connected in series to the circular pad (2); the circular pad (2) is used to output current to the electromagnetic net (1) to form a magnetic field to absorb magnetic impurities in the slurry.

2. The water-based ceramic slurry iron removal filtration system according to claim 1, characterized in that: The pore size of the filter screen (9) is 100 meshes.

3. The water-based ceramic slurry iron removal filtration system according to claim 1, characterized in that: A handle is provided at one end of the carrying plate (6) and a lock buckle is installed on the handle.

4. The water-based ceramic slurry iron removal filtration system according to claim 1, characterized in that: The electromagnetic net (1) is provided with two layers in the vertical direction, the mesh size of the electromagnetic net (1) is 10 mm×10 mm, and the mesh diameter of the first layer of the electromagnetic net (1) is larger than the mesh diameter of the second layer.

5. The water-based ceramic slurry iron removal filtration system according to claim 1, characterized in that: A diaphragm pump (4) is installed on the flow guide pipe (3).

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