Powder material temperature control device
By installing a jacket on the outside of the powder material silo and using a heat exchange medium for heat exchange, the problem of insufficient temperature control of lithium iron phosphate black powder was solved, and effective temperature regulation and improved recovery rate were achieved.
Patent Information
- Application Number
- CN202422678360.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-04
AI Technical Summary
The lack of effective devices in the existing technology to regulate and control the temperature of lithium iron phosphate black powder results in low recovery rate and the inability to proceed smoothly in the next process.
A jacket is installed on the outside of the powder material silo, and heat exchange is carried out between the powder material and the heat exchange medium inside the jacket through a heat exchange system to achieve temperature control of the powder material. The temperature is regulated by electric heating or circulating cooling water.
It achieves effective temperature regulation of powder materials, improves recovery rate and feasibility of subsequent processes, and features simple structure and convenient operation.
Smart Images
Figure CN223539144U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of temperature control equipment for powder materials, and specifically to a temperature control device for powder materials. Background Technology
[0002] Currently, when separating components in powder materials containing multiple elements, temperature control is often required for effective separation. For example, waste lithium iron phosphate (LFP) black powder is obtained after decommissioned LFP lithium iron phosphate has undergone a series of pretreatments, including crushing, sorting, and pyrolysis, resulting in a powder containing elements such as phosphorus, iron, lithium, nickel, cobalt, manganese, carbon, and aluminum. Existing technologies typically employ wet and pyrometallurgical processes to recover valuable metals from the black powder, both of which require specific temperature conditions to achieve high recovery rates. Furthermore, the processed LFP black powder mixture needs to be cooled before proceeding to the next step. Currently, there is no effective device for regulating and controlling the temperature of LFP black powder. Therefore, this application provides a simple and effective temperature control device for powder materials. Summary of the Invention
[0003] This application discloses a powder material temperature control device. The device uses a jacket connected to a heat exchange system on the outside of the silo to exchange heat with the powder material inside the silo through the heat exchange medium inside the jacket, thereby achieving effective temperature control of the powder material inside the silo and providing temperature assurance for subsequent processes of the powder material.
[0004] This application provides a powder material temperature control device, including:
[0005] The silo is used to store and transport powder materials. The top of the silo has a feed inlet and the bottom has a discharge outlet.
[0006] The mixing mechanism is rotatably installed inside the silo and is used to mix the powder materials inside the silo.
[0007] The driving component is connected to the stirring mechanism and is used to drive the stirring mechanism to rotate.
[0008] At least one jacket, each jacket being located on the outside of the compartment;
[0009] The heat exchange system has its outlet end connected to the bottom of the jacket and its inlet end connected to the top of the jacket. It is used to transport the heat exchange medium into the jacket and exchange heat with the powder material inside the chamber.
[0010] In some embodiments, the stirring mechanism is a ribbon agitator matched with the hopper body, and the ribbon agitator is either a single ribbon agitator or a double ribbon agitator.
[0011] In some embodiments, each of the jackets is connected to a plurality of partitions, one end of each partition is fixedly connected to one side of the inner wall of the corresponding jacket, and the other end of each partition is provided with a predetermined gap from the other side of the inner wall of the corresponding jacket, and the gaps between two adjacent partitions and the jacket are respectively located on both sides of the jacket.
[0012] In some embodiments, each of the partitions is bolted to the inner wall of the corresponding jacket.
[0013] In some embodiments, the heat exchange system and the inlet end of each jacket are provided with regulating valves for controlling the flow rate of the heat exchange medium.
[0014] In some embodiments, the drive end of the drive unit passes through the top of the chamber and is connected to the stirring mechanism at that end.
[0015] In some embodiments, a bearing is connected to the top of the hopper, and the drive end of the drive component is rotatably connected to the hopper via the bearing.
[0016] In some embodiments, each of the jackets is welded to the outside of the compartment.
[0017] This application provides a powder material temperature control device. The device has a jacket connected to a heat exchange system on the outside of the silo. When it is necessary to heat the powder material inside the silo, external electric heating is used to heat the heat exchange medium in the heat exchange system. The heat exchange medium is then transported to the jacket to exchange heat with the powder material inside the silo, thus achieving heating. When it is necessary to cool the powder material inside the silo, external circulating cooling water is used to cool the heat exchange medium in the heat exchange system. The heat exchange medium is then transported to the jacket to exchange heat with the powder material inside the silo, thus achieving cooling. Therefore, this device can effectively regulate and control the temperature of powder materials and has the characteristics of simple structure and convenient operation. Attached Figure Description
[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the embodiments described below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0019] Figure 1 A schematic diagram of a powder material temperature control device provided in some embodiments of this application is shown;
[0020] Figure 2 A schematic diagram of the structure of the jacket provided in some embodiments of this application is shown.
[0021] The reference numerals in the detailed embodiments are as follows:
[0022] 1 compartment
[0023] 2 feed inlets
[0024] 3 discharge port
[0025] 4-Pack
[0026] 41 partitions
[0027] 42 gap
[0028] 5. Stirring mechanism
[0029] 6 drive components
[0030] 7. Heat exchange system. Detailed Implementation
[0031] In the description of this application, it should be understood that the use of terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" to indicate orientation or positional relationship, unless otherwise specified, is understood to be based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description, and does not 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 application.
[0032] Furthermore, features specified with "first" or "second" for descriptive purposes only should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Features specified with "first" or "second" may explicitly or implicitly include at least one of the specified features. The description of "multiple" generally means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0033] In this application, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can be a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0034] In the description of this specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0035] It should be noted that the powder material selected in the embodiments of this application is waste lithium iron phosphate black powder, which includes the electrode powder scrapped during the production of lithium iron phosphate batteries and the battery powder after dismantling waste lithium iron phosphate batteries.
[0036] Please see Figures 1-2 As shown in the figure, an embodiment of this application provides a powder material temperature control device, comprising:
[0037] The silo body 1 is used to store and transport powder materials. The top of the silo body 1 is provided with a feed inlet 2 and the bottom of the silo body 1 is provided with a discharge outlet 3.
[0038] The stirring mechanism 5 is rotatably installed inside the silo 1 and is used to stir the powder material inside the silo 1.
[0039] Drive component 6 is connected to stirring mechanism 5 and is used to drive stirring mechanism 5 to rotate;
[0040] At least one jacket 4, each jacket 4 is located on the outside of the compartment 1;
[0041] The heat exchange system 7 has its outlet end connected to the bottom of the jacket 4 and its inlet end connected to the top of the jacket 4. It is used to transport the heat exchange medium into the jacket 4 and exchange heat with the powder material in the chamber 1.
[0042] In some embodiments of this application, by setting at least one jacket 4 outside the silo 1, the heat exchange medium in the heat exchange system 7 is transported to the jacket 4 to exchange heat with the powder material in the silo 1, thereby achieving effective temperature regulation and control of the powder material. Specifically, when it is necessary to heat the powder material in the silo 1, the heat exchange medium in the heat exchange system 7 is heated by external electric heating. After the heat exchange medium is transported to the jacket 4, it can exchange heat with the powder material in the silo 1, thus achieving heating of the powder material. When it is necessary to cool the powder material in the silo 1, the heat exchange medium in the heat exchange system 7 is cooled by external circulating cooling water. After the heat exchange medium is transported to the jacket 4, it can exchange heat with the powder material in the silo 1, thus achieving cooling of the powder material. Therefore, this device can effectively regulate and control the temperature of powder materials and has the characteristics of simple structure and convenient operation.
[0043] In the above embodiments, multiple jackets 4 are arranged vertically side by side on the outside of the chamber 1. By setting multiple jackets 4, the heat exchange efficiency between the heat exchange medium and the powder material inside the chamber 1 can be effectively improved to a certain extent.
[0044] In some embodiments, the stirring mechanism 5 is a ribbon agitator matched with the chamber 1, and the ribbon agitator is either a single ribbon agitator or a double ribbon agitator.
[0045] In the above embodiment, the stirring mechanism 5 is selected as a ribbon agitator. In actual application, a single ribbon agitator or a double ribbon agitator with different powder material conveying capacity can be selected in real time according to the material quantity in the silo 1, the specific temperature adjustment situation and the heat exchange efficiency of the heat exchange medium in the jacket 4.
[0046] In some embodiments, each of the jackets 4 is connected to a plurality of partitions 41. One end of each partition 41 is fixedly connected to one side of the inner wall of the corresponding jacket 4. The other end of each partition 41 is provided with a gap 42 of a preset distance between it and the other side of the inner wall of the corresponding jacket 4. The gap 42 between two adjacent partitions 41 and the jacket 4 is located on both sides of the jacket 4.
[0047] In the above embodiment, by setting multiple baffles 41 and gaps 42, the heat exchange medium flows in a serpentine manner in each jacket 4, which to a certain extent increases the heat exchange time between the heat exchange medium and the powder material in the chamber 1, thereby effectively improving the heat exchange efficiency.
[0048] In some embodiments, each of the partitions 41 is bolted to the inner wall of the corresponding jacket 4.
[0049] In the above embodiments, the partitions 41 are all fixed to the inner wall of the jacket 4 by bolts. Therefore, when the partitions 41 are worn or otherwise abnormal, they can be removed from the inner wall of the jacket 4 for replacement. In other embodiments, the partitions 41 can also be fixed to the inner wall of the jacket 4 by welding or other methods.
[0050] In some embodiments, the heat exchange system 7 and the inlet end of each jacket 4 are provided with regulating valves for controlling the flow rate of the heat exchange medium.
[0051] In the above embodiment, by setting a regulating valve to adjust the flow rate of the heat exchange medium delivered to the jacket 4, the heat exchange efficiency between the heat exchange medium in each jacket 4 and the powder material in the silo 1 can be controlled. When it is necessary to reduce the heat exchange efficiency, it can be achieved by reducing or shutting off the heat exchange medium in one or more jackets 4; when it is necessary to increase the heat exchange efficiency, it can be achieved by increasing the flow rate of the heat exchange medium in one or more jackets 4, thereby diversifying the control methods and realizing the redundancy of the device.
[0052] In some embodiments, the drive end of the drive member 6 passes through the top of the chamber 1 and is connected to the stirring mechanism 5 at that end.
[0053] In the above embodiment, by passing the driving end of the driving component 6 through the top of the chamber 1 and rotatably connecting it to the top of the chamber 1, and then fixing the driving end of the driving component 6 to the stirring mechanism 5, the stirring mechanism 5 can be driven to rotate to achieve the stirring and conveying of powder materials in the chamber 1.
[0054] In some embodiments, a bearing is connected to the top of the chamber 1, and the drive end of the drive component 6 is rotatably connected to the chamber 1 through the bearing.
[0055] In the above embodiment, the driving end of the driving component 6 is rotatably connected to the top of the chamber 1 through a bearing, which effectively reduces the friction between the driving end of the driving component 6 and the top of the chamber 1, and extends the service life of the component to a certain extent.
[0056] In some embodiments, each of the jackets 4 is welded to the outside of the housing 1.
[0057] In the above embodiment, the jacket 4 is fixed to the outside of the chamber 1 by welding, ensuring the reliability of the connection between the jacket 4 and the chamber 1. In other embodiments, bolts can also be used to fix the jacket 4 to the outside of the chamber 1.
[0058] The above provides a detailed description of a powder material temperature control device. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments are merely for the purpose of helping to understand the core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this application.
Claims
1. A temperature control device for powder materials, characterized in that, include: The silo is used to store and transport powder materials. The top of the silo has a feed inlet and the bottom has a discharge outlet. The mixing mechanism is rotatably installed inside the silo and is used to mix the powder materials inside the silo. The driving component is connected to the stirring mechanism and is used to drive the stirring mechanism to rotate. At least one jacket, each jacket being located on the outside of the compartment; The heat exchange system has its outlet end connected to the bottom of the jacket and its inlet end connected to the top of the jacket. It is used to transport the heat exchange medium into the jacket and exchange heat with the powder material inside the chamber.
2. The powder material temperature control device as described in claim 1, characterized in that, The stirring mechanism is a ribbon agitator that matches the container body. The ribbon agitator can be either a single ribbon agitator or a double ribbon agitator.
3. The powder material temperature control device as described in claim 2, characterized in that, Each of the jackets is connected to multiple partitions. One end of each partition is fixedly connected to the inner wall of one side of the corresponding jacket. The other end of each partition is provided with a predetermined gap from the inner wall of the other side of the corresponding jacket. The gaps between two adjacent partitions and the jacket are located on both sides of the jacket.
4. The powder material temperature control device as described in claim 3, characterized in that, Each of the partitions is fixed to the inner wall of the corresponding jacket by bolts.
5. The powder material temperature control device as described in claim 3, characterized in that, The heat exchange system and each jacket are equipped with a regulating valve at the inlet end for controlling the flow rate of the heat exchange medium.
6. The powder material temperature control device as described in claim 1, characterized in that, The drive end of the drive unit passes through the top of the chamber and is connected to the stirring mechanism at that end.
7. The powder material temperature control device as described in claim 4, characterized in that, The top of the hopper is connected to a bearing, and the drive end of the drive component is rotatably connected to the hopper via the bearing.
8. The powder material temperature control device as described in claim 1, characterized in that, Each of the jackets is welded to the outside of the compartment.