A slurry iron removal device

Abstract

The present invention relates to a slurry iron removal device, comprising a pipeline, a magnetic column is arranged inside the pipeline, an impeller blade is arranged on the magnetic column, and a fixedly arranged rotating fulcrum is also included, the end of the magnetic column is connected to the rotating fulcrum, and the magnetic column can rotate so that the rotating impeller blade can stir the slurry and change the flow direction of at least part of the slurry. The present invention can provide a horizontal force for the slurry, drive the slurry close to the pipeline wall to move toward the magnetic rod, and enhance the slurry iron removal effect.

Description

Technical Field

[0001] The invention relates to the technical field of new energy vehicles, and in particular to a slurry iron removal technology in a homogenization process during a manufacturing process. Background Art

[0002] Homogenization is the core process in the battery preparation process. In the process of mixing the positive (negative) electrode materials with various additives, the active substances and additives in the slurry will collide and rub against the inner wall of the reactor. The homogenization reactor is almost made of iron. Some of the magnetic substances that are rubbed off will fall into the reactor and pollute the slurry. If the iron content in the slurry exceeds the standard, it will cause abnormal K value of the battery cell and large voltage difference of the module, affecting the mileage of the car. In severe cases, the battery cell will short-circuit and catch fire, seriously threatening the life safety of the driver. Therefore, the slurry iron removal process in the battery preparation process is an indispensable link.

[0003] At present, the commonly used methods for slurry iron removal are: 1. Cavity-type magnetic rod iron removal: multiple iron removal magnetic rods are placed in a container, and the slurry flows through the gaps between the magnetic rods, and the magnetic material of the slurry is removed during the flow; the slurry in this method can only flow in one horizontal direction. The larger the slurry flow rate, the less contact time between the slurry and the magnetic rod, and the worse the demagnetization effect. The iron removal effect can only be achieved by increasing the iron removal container or adding magnetic rods, which has the disadvantages of large floor space and low iron removal efficiency; 2. Pipeline series magnetic rod iron removal: a magnetic rod is placed in a pipeline, and the slurry flows through the gap between the magnetic rod and the pipeline. The purpose of slurry iron removal is achieved by connecting a plurality of identical devices in series; when the slurry flow rate is too large, due to the limited gap between the magnetic rod and the pipeline, it is easy to cause slurry blockage and poor iron removal efficiency; if the gap between the magnetic rod and the pipeline is too large, the iron removal effect becomes worse, and a better iron removal effect can only be achieved by connecting more iron removal equipment in series, which increases the floor space occupied by the iron removal equipment and increases the cost of slurry iron removal. Summary of the invention

[0004] The object of the present invention is to provide a slurry iron removal device to solve the problem in the prior art that the slurry can only flow in one horizontal direction resulting in low iron removal efficiency.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] A slurry iron removal device includes a pipeline, a magnetic column is provided inside the pipeline, an impeller is provided on the magnetic column, and also includes a fixedly arranged rotating fulcrum, the end of the magnetic column is connected to the rotating fulcrum, and the magnetic column is rotatable so that the rotating impeller can stir the slurry and change the flow direction of at least part of the slurry.

[0007] According to the above technical means, when the magnetic column rotates, the slurry is stirred by the impeller blades, causing the flow direction of the slurry to change. The rotating impeller blades can provide a horizontal force for the slurry, driving the slurry close to the pipe wall to move toward the magnetic column, thereby enhancing the iron removal effect of the slurry.

[0008] Furthermore, the magnetic column includes a connecting rod and a plurality of annular magnetic blocks, the connecting rod passes through all the annular magnetic blocks, so that the annular magnetic blocks are distributed in sequence along the axial direction of the connecting rod, and the annular magnetic blocks are clamped on the connecting rod.

[0009] According to the above technical means, the magnetic uniformity of the magnetic column is improved. At the same time, the annular magnetic blocks are connected to the impeller ring through a connecting rod, which is not only convenient for disassembly, but also the magnetic strength can be adjusted by changing the number of annular magnetic blocks according to actual needs.

[0010] Furthermore, the magnetic poles of two opposite surfaces of two adjacent annular magnetic blocks are the same.

[0011] According to the above technical means, under the effect of like-charge repulsion, a gap will be generated between two adjacent annular magnetic blocks, so a magnetic field ranging from level N to level S will be generated outside each annular magnetic block. Therefore, the magnetic field strength of the magnetic column is equivalent to the superposition of the magnetic field strengths of all the annular magnetic blocks, and the magnetic field strength of the magnetic column is higher.

[0012] Furthermore, there are multiple impeller blades distributed along the circumference of the magnetic column, so that when the liquid flows in the pipeline, the pressure of the liquid on the impeller blades can drive the magnetic column to rotate.

[0013] According to the above technical means, the frequency of the impeller stirring the slurry can be increased, so that more slurry close to the pipe wall moves toward the magnetic column, further enhancing the iron removal effect of the slurry.

[0014] Furthermore, an impeller ring is provided between each two adjacent annular magnetic blocks, the connecting rod passes through the impeller ring, the impeller ring is clamped on the connecting rod, and each impeller ring is connected to a plurality of impeller blades, which are circumferentially arranged on the corresponding impeller ring.

[0015] According to the above technical means, the iron removal effect of slurry is further enhanced.

[0016] Furthermore, the rotation fulcrum is connected to the output shaft of the motor, so that the motor can drive the magnetic column to rotate.

[0017] Furthermore, a feed pump is provided at the inlet end of the pipeline.

[0018] According to the above technical means, the flow rate of the slurry can be adjusted, and then the rotation speed of the magnetic column can be adjusted.

[0019] Furthermore, a tachometer is provided on the rotating fulcrum, and the tachometer is used to obtain and display the rotation speed of the magnetic column.

[0020] Furthermore, the tachometer and the feed pump are both connected to a control terminal, so that the control terminal can adjust the rotation speed of the magnetic column by controlling the pump speed of the feed pump.

[0021] According to the above technical means, the rotation speed of the magnetic rod is monitored in real time, which can provide feedback to the feeding system, adjust the feed flow rate, and ensure the stability of the iron removal effect.

[0022] Furthermore, the tachometer and the motor are both connected to a control terminal, so that the control terminal can adjust the speed output by the motor through the speed of the magnetic column obtained by the tachometer.

[0023] According to the above technical means, the rotation speed of the magnetic rod is monitored in real time, and then the rotation speed of the motor is adjusted to ensure the stability of the iron removal effect.

[0024] Furthermore, the rotation fulcrum is a rotator, the connecting rod is connected to the rotator through a connector, and the connecting rod is fixed on the connector.

[0025] Beneficial effects of the present invention:

[0026] The present invention can provide a horizontal stirring force for the slurry, drive the slurry close to the pipe wall to move toward the magnetic rod, and strengthen the slurry iron removal effect; after the slurry flow rate increases, the impeller rotation speed is accelerated, the contact between the slurry and the magnetic rod is strengthened, the slurry residence time is reduced, and the influence on the demagnetization effect is reduced, which can meet the slurry iron removal under high flow rate; the magnetic uniformity is good, and the magnetic rings can be arranged in the same polarity (SNNS) or opposite polarity (SNSN) according to actual needs to increase the magnetic uniformity of the iron removal system; the annular magnetic block is connected to the impeller ring through a connecting rod, which is not only convenient to disassemble, but also can adjust the magnetic strength by changing the number of magnetic rings according to actual needs; it is easy to clean, the magnetic force of the magnetic ring after disassembly is rapidly reduced, and the cleaning work is very convenient; the iron removal stability is strong, the rotation speed of the magnetic column is monitored in real time, and the feeding system can be fed back to adjust the feeding flow rate to ensure the stability of the iron removal effect; BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural schematic diagram of Example 1;

[0028] Figure 2 Schematic diagrams of the magnetic column structure of Example 1, wherein (a) is a schematic diagram of the magnetic column structure without an impeller blade; (b) is a schematic diagram of the magnetic column structure with an impeller blade;

[0029] Figure 3Schematic diagram of the impeller blade structure and position relationship of Example 1, wherein (a) is a schematic diagram of the assembly structure of the impeller ring and the impeller; (b) is a schematic diagram of the position relationship between the annular magnetic block and the impeller ring;

[0030] Figure 4 Schematic diagram of the position relationship of the annular magnetic blocks, wherein (a) is the case where the magnetic poles of the opposite faces of adjacent annular magnetic blocks are the same; (b) is the case where the magnetic poles of the opposite faces of adjacent annular magnetic blocks are different;

[0031] Figure 5 This is a schematic diagram of the structure of Example 2;

[0032] Figure 6 Schematic diagram of the structure and position relationship of the impeller blades in Example 2, wherein (a) is a schematic diagram of the assembly structure of the impeller ring and the impeller; (b) is a schematic diagram of the position relationship between the annular magnetic block and the impeller ring;

[0033] Figure 7 This is a schematic diagram of the magnetic column structure of Example 2.

[0034] Among them, 1-feed port, 2-feed pump, 3-feed adapter, 4-annular magnetic block, 5-impeller blade, 6-connecting rod; 61-locking screw, 62-locking screw, 7-connector, 8-tachometer, 9-rotator, 10-discharge adapter, 11-discharge port, 12-control terminal, 13-impeller ring, 14-pipeline; 15-magnetic column. DETAILED DESCRIPTION

[0035] The following will refer to the accompanying drawings and preferred embodiments to illustrate the implementation of the technical solution of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the scope of protection of the present invention.

[0036] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0037] Example 1

[0038] This embodiment proposes a slurry iron removal device, such as Figure 1As shown, it includes a pipeline 14, and the pipeline 14 has a feed port 1 and a discharge port 11. The slurry flows in from the feed port 1 and flows out from the discharge port 11. A feed pump 2 is arranged at the position of the feed port 1 to adjust the pressure of the slurry entering the pipeline 14. In this embodiment, the feed pump 2 is connected to the pipeline 14 through a feed adapter 3.

[0039] A magnetic column 15 with magnetism is arranged inside the pipe 14. A plurality of impeller blades 5 are arranged circumferentially on the magnetic column 15. One end of the impeller blade 5 is connected to the magnetic column 15, and the other end extends toward the outside of the magnetic column 15. The device is also provided with a rotating fulcrum, and the magnetic column 15 is installed on the rotating fulcrum. Under the action of the feed pump 2, when the pressurized slurry flows through the magnetic column 15, the pressure of the slurry will act on the circumferentially arranged impeller blades 5, thereby driving the magnetic column 15 to rotate. After the magnetic column 15 rotates, the slurry can be stirred through the impeller blades 5, and a horizontal force is applied to the flowing slurry, thereby driving the slurry close to the pipe wall to move toward the magnetic rod, thereby enhancing the slurry iron removal effect.

[0040] In this embodiment, in order to increase the rotation speed of the magnetic column 15, an impeller ring 13 is arranged between each two adjacent annular magnetic blocks 4, and the connecting rod 6 passes through the impeller ring 13, and the impeller ring 13 is clamped on the connecting rod 6. Each impeller ring 13 is connected to a plurality of impeller blades 5, and the impeller blades 5 are circumferentially arranged on the corresponding impeller ring 13.

[0041] like Figure 2-Figure 4 As shown, the magnetic column 15 in this embodiment includes a connecting rod 6 and a plurality of annular magnetic blocks 4, the connecting rod 6 passes through all the annular magnetic blocks 4, the annular magnetic blocks 4 are clamped on the connecting rod 6, the annular magnetic blocks 4 are arranged in sequence along the axial direction of the connecting rod 6, an impeller ring 13 is arranged between adjacent annular magnetic blocks 4, the impeller blades 5 are arranged circumferentially along the impeller ring 13, and the connecting rod 6 also passes through the impeller ring 13, and the impeller ring 13 is clamped on the connecting rod 6. In this embodiment, an impeller ring 13 is arranged between every two annular magnetic blocks 4.

[0042] In this embodiment, the polarities of the two opposite surfaces between two adjacent annular magnetic blocks 4 are the same or opposite. When they are the same, due to the effect of like charges repelling each other, a gap will be generated between the two adjacent annular magnetic blocks 4, even if there is an impeller ring 13 between the two. However, during the assembly process, the impeller ring 13 cannot completely fill this gap. Therefore, a magnetic field from level N to level S will be generated outside each annular magnetic block 4. Therefore, the magnetic field strength of the magnetic column 15 is equivalent to the superposition of the magnetic field strengths of all the annular magnetic blocks 4, and the magnetic field strength of the magnetic column 15 is higher.

[0043] When it is opposite, under the condition of opposite charges attracting each other, it is beneficial to assemble the annular magnetic block 4 and the impeller ring 13, but the direction of the external magnetic field is from one end of the magnetic column 15 to the other end.

[0044] In this embodiment, the aforementioned rotation fulcrum is a rotator 9, which is fixedly arranged. A retaining screw 61 and a retaining screw 62 are respectively provided at the upper and lower positions of the connecting rod 6 to prevent the annular magnetic block 4 from falling off.

[0045] In this embodiment, the connecting rod 6 is installed on the rotator 9 through the connector 7. A tachometer 8 is also provided on the rotator 9. The tachometer 8 is used to count and display the rotation speed of the connecting rod 6 and the magnetic column 15. In this embodiment, a control terminal 12 is also provided. The tachometer 8 and the feed pump 2 are electrically connected to the control terminal 12. The tachometer 8 displays the rotation speed of the connecting rod 6 in real time and transmits the rotation speed of the connecting rod 6 to the control terminal 12. The system compares the real-time speed data, automatically monitors and adjusts the flow rate of the feed pump 2, and improves the stability of the iron removal system; the slurry after iron removal passes through the discharge transfer interface 10, and then is transferred to the subsequent process through the outflow port 11.

[0046] The control terminal 12 can then control the pumping speed of the feed pump 2 via the rotational speed of the connecting rod 6 .

[0047] Example 2

[0048] This embodiment proposes a slurry iron removal device, such as Figure 5-Figure 7 As shown, the magnetic column 15 is connected to the connector 7, and the connector 7 is connected to the output shaft of the motor. When the motor is started, the magnetic column 15 can be driven to rotate through the connector 7. The position, shape and arrangement of the impeller blade 5 in this embodiment are shown in FIG. Figure 5 and 6 As shown, in this embodiment, an impeller ring 13 is arranged between two pairs of adjacent annular magnetic blocks 4, and the impeller ring 13 is sleeved on the connecting rod 6. Each impeller ring 13 is circumferentially arranged with 3 and impeller blades 5. The rest of the structure is the same as that of embodiment 1, and will not be repeated here.

[0049] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or change made by a person skilled in the art based on the present invention is within the protection scope of the present invention.

Claims

1. A slurry iron removal device, characterized in that: The invention comprises a pipeline, a magnetic column is arranged inside the pipeline, an impeller blade is arranged on the magnetic column, and a fixedly arranged rotating fulcrum is also included, the end of the magnetic column is connected to the rotating fulcrum, and the magnetic column is rotatable, so that the rotating impeller blade can stir the slurry and change the flow direction of at least part of the slurry; The magnetic column comprises a connecting rod and a plurality of annular magnetic blocks, wherein the connecting rod passes through all the annular magnetic blocks, so that the annular magnetic blocks are distributed in sequence along the axis direction of the connecting rod; The magnetic poles of the two opposite surfaces of two adjacent annular magnetic blocks are the same; An impeller ring is provided between each two adjacent annular magnetic blocks, and the impeller ring is sleeved on the connecting rod. Each impeller ring is connected to a plurality of impeller blades, and the impeller blades are circumferentially arranged on the corresponding impeller ring, so that when the slurry flows in the pipeline, the pressure of the slurry on the impeller blades can drive the magnetic column to rotate; after the magnetic column rotates, the slurry can be stirred by the impeller blades, and a horizontal force is applied to the flowing slurry, thereby driving the slurry close to the pipeline wall to move toward the magnetic rod, thereby enhancing the slurry iron removal effect; A tachometer is provided on the rotating fulcrum, and the tachometer is used to obtain and display the rotation speed of the magnetic column; The tachometer and the feed pump are both connected to a control terminal, so that the control terminal can control the pump speed of the feed pump through the rotation speed of the magnetic column.

2. The device according to claim 1, characterized in that: The annular magnetic block is clamped on the connecting rod.

3. The device according to claim 1, characterized in that: The rotation fulcrum is connected to the output shaft of the motor, so that the motor can drive the magnetic column to rotate.

4. The device according to claim 1, characterized in that: A feed pump is provided at the inlet end of the pipeline.

5. The device according to claim 1, characterized in that: The rotation fulcrum is a rotator, the connecting rod is connected to the rotator through a connector, and the connecting rod is fixed on the connector.

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