Cooling and demagnetizing device for slurry

Abstract

The utility model relates to the technical field of electromagnetic slurry processing, and provides a cooling and demagnetizing device for slurry, which comprises a main body, the first material pipe is inserted into the main body; the second material pipe is inserted into the first material pipe, the first material pipe is isolated from the second material pipe, and slurry flows between the first material pipe and the second material pipe; the cooling channel surrounds the outer side of the first material pipe and is used for allowing cooling liquid to flow; the adsorption part is inserted into the second material pipe and is used for adsorbing magnetic impurities in the slurry; the cooling liquid flows in the cooling channel, wraps the outer side of the first material pipe and is used for cooling the slurry; when the slurry is demagnetized, direct physical contact does not exist between the adsorption part and the slurry, but magnetic impurities in the slurry are adsorbed under the action of the magnetic induction lines, so that any pollution possibly caused by the material of the adsorption part to the slurry is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of battery slurry processing technology, specifically relating to a cooling and demagnetizing device for slurry. Background Technology

[0002] During the preparation of battery slurry, trace amounts of magnetic metal impurities are inevitably generated. If these impurities are not removed in time and directly mixed into the slurry, and if the magnetic content exceeds the specified standard, it can lead to a slight decrease in the material's capacity and energy density, and in severe cases, even cause short circuits, fires, or explosions, affecting the battery's safety performance. Therefore, to prevent these problems, the battery industry uses slurry demagnetizers to reduce magnetic impurities in the slurry. One commonly used demagnetizing device in the industry is the permanent magnet rod; however, the operating temperature also affects the rate at which the permanent magnet rod weakens its magnetism, with higher operating temperatures accelerating this process. Therefore, to maintain the magnetic properties of the permanent magnet rod, the slurry temperature should be kept within an appropriate range.

[0003] To address this issue, a publicly disclosed Chinese utility model patent, application publication number CN209476439 U, discloses a cooling and iron removal device suitable for ball milling dispersion processes. The device includes a housing and a seal. The top of the housing has an opening, and a cover plate is positioned above the opening. The cover plate is placed on top of the housing, and an iron removal device is symmetrically fixed to the cover plate. The iron removal device comprises a magnetic rod, a limiting plate, a clamping plate, a clamping shaft, a support block, a baffle, and a clamping spring. The top of the cover plate has symmetrical through holes, in which the magnetic rod is slidably inserted. The limiting plate and the clamping plate are both located above the cover plate, and are symmetrically distributed on the outside of the magnetic rod. The bottom of the limiting plate is fixed to the cover plate, and the side of the clamping plate away from the magnetic rod is fixed to the support block. One end of the shaft is fixed, the bottom of the support block is fixed to the cover plate, and there are two support blocks. The clamping shaft slides through the two support blocks. The baffle and the clamping spring are both located between the two support blocks, and the baffle and the clamping spring are both sleeved on the outside of the clamping shaft. The baffle is fixed to the clamping shaft, and the baffle is located at the end of the clamping spring near the magnetic rod. The inside of the housing is equipped with a cooling pipe. The two ends of the cooling pipe pass through the housing and are connected to an external cold water device. The two ends of the cooling pipe are fixed to the housing through seals. There are two pipe interfaces fixed on the outside of the housing. The housing is connected to the slurry circulation pipeline through the two pipe interfaces.

[0004] In this invention, the magnetic rod is inserted into the housing through a through hole at the top of the cover plate, and the slurry is connected to the housing via two pipe interfaces. During the demagnetization process, the magnetic rod is in direct contact with the slurry. Although this method can effectively remove magnetic impurities from the slurry, it also poses certain risks: the material of the magnetic rod itself (such as particles generated by coating wear) may detach and mix into the slurry, thereby introducing new contaminants and affecting the purity and consistency of the product. Utility Model Content

[0005] To address the aforementioned shortcomings of existing technologies, the technical problem to be solved by this utility model is as follows: A cooling and demagnetizing device for slurry is proposed. This device comprises a second material pipe, a first material pipe, and a cooling channel within a main body. The slurry flows between the second and first material pipes, while an adsorbent is inserted into the second material pipe. The cooling channel surrounds the outside of the first material pipe for supplying coolant. During demagnetization of the slurry, the adsorbent does not have direct physical contact with the slurry; instead, it uses magnetic induction lines to adsorb magnetic impurities in the slurry, thus avoiding any contamination that the material of the adsorbent itself might cause to the slurry. Furthermore, during the demagnetization process, coolant flows within the cooling channel and surrounds the outside of the first material pipe to cool the slurry.

[0006] The technical solution adopted by this utility model to solve its technical problem is to propose a cooling and demagnetizing device for slurry, comprising:

[0007] main body;

[0008] The first feed pipe is disposed within the main body;

[0009] The second feed tube has one end inserted into the first feed tube and the other end exposed outside the first feed tube. The first feed tube is isolated from the second feed tube, and the slurry flows between the inner wall of the first feed tube and the outer wall of the second feed tube.

[0010] A cooling channel surrounds the outside of the first feed pipe for supplying coolant flow;

[0011] An adsorption element is inserted into the second feed tube and is used to adsorb magnetic impurities in the slurry.

[0012] The coolant flows within the cooling channel and surrounds the outside of the first feed pipe to cool the slurry.

[0013] In the above-mentioned cooling and demagnetizing device for slurry, a guide plate is provided inside the main body. The guide plate is sleeved on the outside of the first material pipe to form the cooling channel. The coolant flows spirally around the cooling channel from the end to the beginning of the slurry flow direction.

[0014] In the above-mentioned cooling and demagnetizing device for slurry, the main body is provided with an upper cover, one side of the second material pipe is fixed on the upper cover, and the upper cover is detachably connected to the main body.

[0015] In the above-described cooling and demagnetizing device for slurry, the adsorption element is detachably connected to the end of the second feed tube exposed outside the first feed tube.

[0016] In the above-mentioned cooling and demagnetizing device for slurry, the main body is provided with a first feed inlet, which is connected to the first feed pipe for the slurry to enter the main body.

[0017] In the above-mentioned cooling and demagnetizing device for slurry, a lower cover is also provided on the upper part of the main body. The lower cover is detachably connected to the main body. A cavity is provided inside the lower cover. The first material pipe is connected to the cavity. The cavity is used to receive the slurry.

[0018] In the above-mentioned cooling and demagnetizing device for slurry, the bottom end of the lower cover is also provided with a first discharge port, which is connected to the cavity and is used to allow the slurry in the cavity to flow out.

[0019] In the above-mentioned cooling and demagnetizing device for slurry, a second feed inlet is provided on the main body, which is located on the side of the main body near the lower cover and communicates with the cooling channel, for the coolant to enter the cooling channel.

[0020] In the above-mentioned cooling and demagnetizing device for slurry, the main body is further provided with a second discharge port, which is located above the second inlet port, for the cooling liquid to flow out.

[0021] In the above-mentioned cooling and demagnetizing device for slurry, a first sealing element is provided between the upper cover and the main body, the first sealing element being used to provide a seal between the main body and the upper cover; a second sealing element is provided between the lower cover and the main body, the second sealing element being used to provide a seal between the main body and the lower cover.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) The slurry flows in the annular space between the inner wall of the first feed tube and the outer wall of the second feed tube. The adsorption element is inserted in the second feed tube. The adsorption element does not have direct physical contact with the slurry. Instead, it uses the magnetic induction line to adsorb magnetic impurities in the slurry, thus avoiding any contamination of the slurry by the material of the adsorption element itself.

[0024] (2) The guide plate is set inside the main body and sleeved on the outside of the first material pipe, and together with the inner wall of the main body, it forms a spiral cooling channel. The coolant flows spirally around the cooling channel from the end of the slurry flow direction to the beginning. By making the coolant and slurry flow in opposite directions, countercurrent heat exchange is achieved. Countercurrent heat exchange can provide more efficient heat exchange than cocurrent heat exchange because it makes the temperature difference between the coolant and the slurry greater, thereby improving the heat exchange efficiency and ensuring that the slurry maintains the ideal temperature throughout the process. The spiral design makes the coolant contact the surface of the first material pipe more fully and evenly, avoiding local overcooling or overheating, and helping to maintain the consistency of the slurry temperature.

[0025] (3) The top cover is detachably connected to the main body. One side of the second material tube is fixed on the top cover, while one side of the adsorption element is detachably connected to the end of the second material tube exposed outside the first material tube. This connection design facilitates the disassembly, cleaning and maintenance of the second material tube and the adsorption element, further ensuring the effective operation of the adsorption element, and thus ensuring the quality of the slurry. Attached Figure Description

[0026] Figure 1 This is a 3D view of the proposed solution;

[0027] Figure 2 This is the floor plan of this project;

[0028] Figure 3 yes Figure 2 Sectional view of AA.

[0029] Figure 4 yes Figure 1 Three-dimensional view of the middle section structure.

[0030] In the diagram, 1. Main body; 2. First feed pipe; 3. Second feed pipe; 4. Cooling channel; 5. Adsorption component; 6. Guide plate; 7. Top cover; 8. Flange clamp; 9. First feed inlet; 10. Bottom cover; 11. Cavity; 12. First discharge outlet; 13. Second feed inlet; 14. Second discharge outlet; 15. First sealing component; 16. Second sealing component; 17. Support frame. Detailed Implementation

[0031] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indicator will also change accordingly.

[0033] like Figure 1 As shown, this utility model discloses a cooling and demagnetizing device for slurry, which is used in the slurry mixing process to magnetize and cool the slurry.

[0034] like Figures 1 to 4 As shown, this utility model discloses a cooling and demagnetizing device for slurry, comprising:

[0035] The system comprises: a main body 1; a first feed pipe 2, which is disposed within the main body 1; a second feed pipe 3, one end of which is inserted into the first feed pipe 2 and the other end is exposed outside the first feed pipe 2, and the second feed pipe 3 is isolated from the first feed pipe 2; the slurry flows between the inner wall of the first feed pipe 2 and the outer wall of the second feed pipe 3; a cooling channel 4, which surrounds the outside of the first feed pipe 2 for supplying coolant flow; an adsorption element 5, which is inserted into the second feed pipe 3 for adsorbing magnetic impurities in the slurry; and coolant flowing in the cooling channel 4 and surrounding the outside of the first feed pipe 2 for cooling the slurry.

[0036] During operation, the slurry flows in the annular space between the inner wall of the first feed pipe 2 and the outer wall of the second feed pipe 3. The adsorbent 5, inserted into the second feed pipe 3, uses magnetic induction lines to adsorb magnetic impurities in the slurry. At the same time, the coolant in the cooling channel 4 surrounds the outside of the first feed pipe 2, cooling the slurry to maintain an ideal temperature and prevent changes in material properties or chemical reactions caused by high temperatures. Throughout the process, the adsorbent 5 has no direct physical contact with the slurry. This non-contact design has multiple advantages: First, it avoids the potential damage to the slurry caused by the material of the adsorbent 5 itself. First, it prevents any contamination; second, since there is no mechanical friction, no additional particulate matter or other contaminants will be mixed into the slurry; finally, it also protects the integrity of the adsorbent 5 itself, extends the service life of the equipment, and reduces maintenance requirements; the adsorbent 5 is preferably a magnetic rod with a working field strength of 12000GS, the material of the second feed tube 3 is preferably sanitary grade SUS304, when the adsorbent 5 is inserted into the second feed tube 3, the distance between the outer wall of the adsorbent 5 and the inner wall of the second feed tube 3 is 0.2 to 0.5 mm, and the thickness of the second feed tube 3 is 0.2 to 0.5 mm.

[0037] More preferably, a guide plate 6 is provided inside the main body 1. The guide plate 6 is fan-shaped and distributed in a staggered manner inside the main body 1. The guide plate 6 is sleeved on the outside of the first feed pipe 2 and together with the inner wall of the main body 1, forms a spiral cooling channel 4. The coolant flows in the opposite direction along the spiral path in the cooling channel 4, that is, from the end of the slurry flow to the beginning. This counter-current heat exchange method is more efficient than the co-current heat exchange method because it makes the temperature difference between the coolant and the slurry larger, thereby improving the heat exchange efficiency. The spiral design makes the contact between the coolant and the surface of the first feed pipe 2 more sufficient and uniform, avoiding local overcooling or overheating, and helping to maintain the consistency of the slurry temperature, which is crucial to ensuring the quality of the slurry. In addition, the guide plate 6 not only guides the flow path of the coolant, but also ensures that the coolant is evenly distributed in the entire cooling channel 4 through its unique structural design, optimizing the flow distribution and improving the stability and reliability of the system.

[0038] More preferably, the main body 1 is provided with an upper cover 7, and one side of the second material tube 3 is fixed on the upper cover 7. The upper cover 7 is detachably connected to the main body 1. The detachable connection between the upper cover 7 and the main body 1 is preferably a bolt connection. The bolt connection ensures the stability of the device and is also convenient for disassembly and maintenance. The second material tube 3 and the upper cover 7 can be an integrally formed structure or can be fixed by interference fit.

[0039] More preferably, one side of the adsorption element 5 is detachably connected to the end of the second material tube 3 exposed outside the first material tube 2. The adsorption element 5 and the second material tube 3 are preferably connected by a flange clamp 8, and there is a sealing ring between the flanges. This design not only ensures the safe fixation of the adsorption element 5, but also facilitates replacement and maintenance.

[0040] A flange clamp is a mechanical device used to connect or secure two flange interfaces, typically used at the connection points of pipes, valves, or other fluid handling equipment. It uses fasteners (such as bolts and nuts) to tightly bind the two flanges together, ensuring a tight seal and stability at the connection. The main function of the flange clamp is to provide a quick, simple, and reliable flange connection method, suitable for situations requiring frequent disassembly and assembly or where traditional bolted connections are inconvenient in certain environments.

[0041] During operation, the adsorbent 5 is inserted into the second feed tube 3. The magnetic induction lines generated by the adsorbent 5 act on the magnetic impurities in the slurry flowing between the inner wall of the first feed tube 2 and the outer wall of the second feed tube 3. These magnetic impurities are pressed against the outer wall of the second feed tube 3 by the magnetic induction lines of the adsorbent 5. As the adsorbed magnetic impurities gradually increase, when a certain amount is reached, the second feed tube 3 can be removed from the main body 1 by loosening the bolt connection between the top cover 7 and the main body 1 to clean the magnetic impurities pressed against it, ensuring that the adsorption effect is not affected. In addition, by loosening the flange clamp 8 between the adsorbent 5 and the second feed tube 3, the adsorbent 5 can be easily removed from the second feed tube 3 for replacement or maintenance. This ensures the effective operation of the adsorbent 5 and thus ensures the quality of the slurry.

[0042] More preferably, the main body 1 is provided with a first feed inlet 9, which is connected to the first feed pipe 2 for supplying slurry into the main body 1.

[0043] More preferably, the main body 1 is also provided with a lower cover 10, which is detachably connected to the main body 1. The lower cover 10 is provided with a cavity 11, and the bottom end of the second material channel is connected to the cavity 11. The cavity 11 is used to receive slurry. The lower cover 10 and the main body 1 are preferably connected by bolts.

[0044] More preferably, the bottom end of the lower cover 10 is also provided with a first discharge port 12, which is connected to the cavity 11 and is used to allow the slurry in the cavity 11 to flow out.

[0045] During operation, the slurry is made from Figure 3 The first feed inlet 9, indicated by the left arrow, enters the main body 1 and then flows into the first feed pipe 1. Since one end of the second feed pipe 3 is inserted into the first feed pipe 2 and the two are kept isolated, the slurry will flow in the annular space between the inner wall of the first feed pipe 2 and the outer wall of the second feed pipe 3. Due to the gravity of the slurry itself, it will flow downward along this annular space and finally flow into the cavity 11 in the lower cover 10. This design ensures that the slurry is uniformly treated throughout the entire process and avoids cross-contamination between different media.

[0046] When the slurry flows through the annular space between the inner wall of the first feed pipe 2 and the outer wall of the second feed pipe 3, the adsorption element 5 located inside the second feed pipe 3 acts on the magnetic impurities in the slurry through the magnetic induction lines it generates. Although the adsorption element 5 does not directly contact the slurry, the magnetic induction lines can penetrate the second feed pipe 3 and adsorb the magnetic impurities onto the outer wall of the second feed pipe 3. At the same time, the cooling channel 4 surrounds the outside of the first feed pipe 2, and the coolant circulates within the cooling channel 4. The flow direction and speed of the coolant are optimized to ensure that it can effectively envelop the first feed pipe 2 and adsorb the magnetic impurities onto the inner wall of the first feed pipe 2 and the outer wall of the second feed pipe 3. The slurry flowing between the outer walls of the feed pipe 3 undergoes uniform and effective cooling. This process not only helps maintain the ideal temperature of the slurry but also prevents chemical changes or alterations in physical properties caused by high temperatures, thereby protecting the quality of the slurry. Finally, after impurity removal and cooling, the slurry continues to flow along the annular space between the first feed pipe 2 and the second feed pipe 3 until it flows into the cavity 11 inside the lower cover 10. Subsequently, the processed slurry flows out through the first outlet 12, completing the entire processing. This step ensures that the slurry maintains high quality and high purity throughout the entire processing, meeting the requirements of subsequent processes.

[0047] More preferably, the main body 1 is provided with a second feed port 13, which is located on the side of the main body 1 near the lower cover 10 and communicates with the cooling channel 4, for supplying coolant into the cooling channel 4.

[0048] More preferably, the main body 1 is also provided with a second discharge port 14, which is located above the second inlet port 13, for supplying coolant to flow out.

[0049] During operation, the slurry enters the main body 1 through the first inlet 9 and flows downwards due to gravity in the annular space between the inner wall of the first feed pipe 2 and the outer wall of the second feed pipe 3. The coolant enters the cooling channel 4 through the second inlet 13 and flows upwards along the inner wall of the cooling channel 4, finally exiting from the second outlet 14 located above the second inlet 13. In this way, the coolant and the slurry flow in opposite directions, ensuring that the coolant and the slurry always have a large temperature difference throughout the heat exchange process, thereby improving the heat exchange efficiency. The cooling channel 4 consists of staggered fan-shaped guide plates 6 and the main body. The inner wall of the cooling channel 4 forms a spiral channel in which the coolant flows around the outer wall of the first feed tube 2 along a spiral path. This spiral design not only makes the contact between the coolant and the outer wall of the first feed tube 2 more sufficient and uniform, avoiding local overcooling or overheating, but also extends the residence time of the coolant in the cooling channel 4, thereby further improving the heat exchange efficiency. This design not only ensures that the coolant forms a complete circulation path in the cooling channel 4, but also ensures that the temperature of the slurry is effectively controlled during the processing, thereby ensuring the quality and purity of the slurry.

[0050] To improve the sealing effect, a first sealing element 15 is provided between the upper cover 7 and the main body 1 to provide a seal between the upper cover 7 and the main body 1; at the same time, a second sealing element 16 is provided between the lower cover 10 and the main body 1 to provide a seal between the main body 1 and the lower cover 10. The first sealing element 15 and the second sealing element 16 are preferably annular sealing rings.

[0051] To provide stable support for the main body 1, a support frame 17 is provided at the bottom of the lower cover 10. The support frame 17 and the lower cover 10 can be integrally formed or fixed by assembly. The design of the support frame 17 not only provides physical support, but also creates valuable collection space for collecting the slurry flowing out of the first outlet 12. Specifically, the space under the support frame 17 can be fully utilized as a slurry collection area. This design optimizes space utilization and makes the placement of collection items more convenient and safe. Operators can easily place various types of collection items, such as collection buckets or collection boxes, under the lower cover 10 to receive the slurry flowing out of the first outlet 12. The setting of the support frame 17 not only meets the needs of physical support, but also provides convenience for slurry collection.

[0052] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly represent at least one of those features. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0053] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0054] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A cooling demagnetization device for slurry, characterized by, The application relates to a slurry cooling device, which comprises a main body, a first pipe arranged in the main body, a second pipe arranged in the first pipe, a cooling channel arranged outside the first pipe, and a suction member arranged in the second pipe. The main body is provided with a guide plate arranged outside the first pipe to form the cooling channel. The second pipe is detachably connected to one side of the upper cover. The main body is provided with a first feeding port in communication with the first pipe. The main body is further provided with a lower cover detachably connected to the main body. The lower cover is provided with a cavity in communication with the first pipe. The lower cover is further provided with a first discharging port in communication with the cavity.

2. The device for cooling and demagnetizing slurry according to claim 1, wherein The main body is provided with a second feeding port in communication with the cooling channel.

3. The device for cooling and demagnetizing slurry according to claim 1, wherein The main body is further provided with a second discharging port above the second feeding port.

4. The apparatus for cooling and demagnetizing slurry as claimed in claim 1, wherein The upper cover and the main body are provided with a first sealing member.

5. The apparatus for cooling and demagnetizing slurry as claimed in claim 1, wherein The lower cover and the main body are provided with a second sealing member.

6. The device for cooling and demagnetizing slurry as claimed in claim 3, wherein ​ 7. A device for cooling and demagnetizing slurry as claimed in claim 6, wherein, ​ 8. A device for cooling and demagnetizing slurry as claimed in claim 6 wherein, ​ 9. A device for cooling and demagnetizing slurry as claimed in claim 8, wherein, ​ 10. The device for cooling and demagnetizing slurry as claimed in claim 6, wherein ​

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