Reaction apparatus and production system
By installing weighing and volume detection components inside the reaction vessel, the quality of the liquid material can be controlled in real time, solving the problem of slurry delivery error and realizing precise proportioning and efficient production in the lithium battery material preparation process.
Patent Information
- Application Number
- CN202522467118.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-20
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-20
AI Technical Summary
In the wet chemical preparation process of lithium battery materials, fluctuations in the solid content and particle distribution of the reaction slurry lead to large delivery errors by metering pumps, affecting the performance of the finished product. Existing technologies rely on manual inspection, which increases costs and delays production efficiency.
By installing weighing and volume detection components inside the reaction vessel, the slurry quality and volume can be detected in real time. Combined with the controller to control the liquid quality, precise proportioning can be achieved, avoiding errors caused by slurry sedimentation and non-uniformity.
It improved the accuracy of material feeding, reduced manual intervention, shortened the testing time, increased production efficiency, and reduced costs.
Smart Images
Figure CN224926110U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of lithium battery material preparation technology, and in particular to a reaction device and production system. Background Technology
[0002] In some chemical preparation processes, such as the wet chemical preparation process of lithium battery materials, it is necessary to transfer the reaction slurry generated in the previous stage to the reaction vessel of the next stage for further reaction.
[0003] In related technologies, the reaction slurry is mainly delivered to the reactor in a quantitative manner by controlling the flow rate of a metering pump. However, the solid content and particle distribution of the reaction slurry fluctuate due to factors such as raw material batches and reaction conditions, and the reaction slurry is prone to sedimentation during transportation. This leads to a large deviation between the actual amount of solid material delivered by the metering pump and the target value, resulting in an imbalance in the element ratio during the reaction and affecting the performance of the finished product. Utility Model Content
[0004] This application provides a reaction apparatus and production system to ensure the performance of the finished product, reduce costs, and improve production efficiency.
[0005] In a first aspect, the reaction apparatus proposed in the embodiments of this application includes:
[0006] A reaction vessel having a receiving cavity;
[0007] A first transmission component has a first channel communicating with the receiving cavity;
[0008] A second transmission component having a second channel communicating with the receiving cavity; and
[0009] The metering device includes a weighing component, a volume detection component, and a controller. The weighing component is configured to support the reaction vessel, and the controller is signal-connected to the weighing component, the volume detection component, and the second transmission component.
[0010] The first transmission component is used to deliver the reaction slurry to the containment cavity. The controller is configured to obtain the slurry mass of the reaction slurry in the containment cavity through the weighing component and the slurry volume of the reaction slurry in the containment cavity through the volume detection component. Based on the slurry mass and the slurry volume, the controller controls the second transmission component to deliver the reaction liquid mass to the containment cavity.
[0011] In one embodiment, the second transmission component includes:
[0012] Liquid feed tube, having the second channel; and
[0013] A flow meter, connected to the liquid pipe and signal-connected to the controller, is used to detect the flow rate of the reaction liquid in the liquid pipe. The controller determines the mass of the liquid based on the flow rate.
[0014] In one embodiment, the volume detection component includes a level gauge, the controller obtains the liquid level height of the reaction slurry in the containment cavity through the level gauge, and the controller is configured to determine the slurry volume based on the liquid level height.
[0015] In one embodiment, the volume detection component includes a plurality of level gauges, all of which are signal-connected to the controller, and the projections of the plurality of level gauges on the horizontal plane at the installation position of the reaction vessel are spaced apart.
[0016] The controller determines the liquid level height based on the average of the measurements from multiple level gauges.
[0017] In one embodiment, the controller includes:
[0018] Storage unit, used to store a first correspondence between the liquid level height and the slurry volume; and
[0019] The determining unit is used to retrieve the first correspondence relationship, determine the slurry volume based on the liquid level height and the first correspondence relationship, and determine the liquid mass based on the slurry mass and the slurry volume.
[0020] In one embodiment, the storage unit is further configured to store a second correspondence between the slurry density and the slurry solid content of the reaction slurry within the containment cavity;
[0021] The determining unit determines the slurry density based on the slurry mass and the slurry volume, and determines the slurry solid content based on the slurry density and the second correspondence, and the determining unit determines the liquid mass based on the slurry solid content.
[0022] In one embodiment, the reaction vessel is provided with a plurality of lugs spaced circumferentially, and the weighing assembly includes:
[0023] Multiple weights are supported under the multiple lugs, one for each of them.
[0024] In one embodiment, the receiving cavity has an inlet, and the first channel and the second channel communicate with the receiving cavity through the inlet;
[0025] The bottom wall of the receiving cavity is constructed as an arc surface that arches away from the inlet.
[0026] In one embodiment, the reaction apparatus further includes:
[0027] A stirring device includes a driver and a stirring rod. The driver is connected to one end of the reaction vessel near the inlet, and the stirring rod extends from the inlet into the receiving cavity along the central axis of the reaction vessel.
[0028] Secondly, the production system includes:
[0029] The reaction apparatus as described in any of the above;
[0030] Slurry equipment, connected to the first transfer assembly, for conveying reaction slurry to the reaction vessel through the first channel; and
[0031] A liquid feed device, connected to the second transfer component, is used to deliver reaction liquid to the reaction vessel through the second channel.
[0032] The reaction equipment and production system provided in this application embodiment detect the mass and volume of the reaction slurry by directly installing weighing and volume detection components in the reaction vessel. This facilitates the calculation of the actual parameters of the reaction slurry and avoids feeding errors caused by sedimentation and non-uniformity of the reaction slurry during transportation. Furthermore, this technical solution controls the mass of the added reaction liquid by using the mass and volume of the reaction slurry in the reaction vessel, ensuring accurate proportioning of reactants and improving feeding precision.
[0033] Furthermore, the technical solution of this application, while ensuring the accuracy of material feeding, avoids the process of manual calculation, reduces human intervention, thereby reducing labor costs, and can also reduce sampling and testing time and waiting time, avoiding affecting the production cycle and improving production efficiency. Attached Figure Description
[0034] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.
[0035] Figure 1 This is a schematic diagram of the reaction apparatus provided in this application;
[0036] Figure 2 A schematic diagram of the controller provided in this application.
[0037] 100-Reaction equipment; 10-Reaction vessel; 11-Containing cavity; 12-Inlet; 13-Support; 20-First transfer assembly; 30-Second transfer assembly; 40-Weighing assembly; 41-Weight gauge; 50-Volume detection assembly; 51-Level gauge; 60-Controller; 61-Storage unit; 62-Determination unit; 70-Stirring device; 71-Driver; 72-Stirring rod.
[0038] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation
[0039] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.
[0040] In continuous, high-volume production scenarios, some chemical preparation processes require transferring reactants from the previous stage to the reactor of the next stage for further reaction. Some processes necessitate strict control over the proportions of reactants to ensure the accuracy of the element ratios in the final product. For example, in the wet chemical preparation of lithium-ion battery materials, there are instances where the slurry from the previous stage is transferred to the next stage's reaction vessel for further reaction.
[0041] In related technologies, slurry transfer and metering mainly rely on metering pumps capable of flow statistics for quantitative delivery. However, due to fluctuations in the solid content and particle distribution of the slurry caused by factors such as raw material batches and reaction conditions, and the tendency for the slurry to settle during transport, the actual amount of solid material delivered by the metering pump deviates significantly from the target value. Furthermore, the non-uniformity of the slurry further exacerbates the metering error, ultimately leading to an imbalance in elemental proportions and affecting the performance of the finished product.
[0042] Furthermore, to reduce errors, some processes involve manually sampling and testing the slurry density and calculating the solid content before adjusting the feed rate. This increases labor input and costs, and the long testing cycle can also delay production and affect efficiency.
[0043] To address the aforementioned technical problems, the reaction equipment in this application embodiment detects the mass of the reaction slurry within the reaction vessel using a weighing component and the volume of the reaction slurry within the reaction vessel using a volume detection component. Then, a controller controls the amount of reaction liquid to be added based on the slurry mass and volume. This improves the accuracy of material addition, ensures the precision of the finished product, avoids manual inspection, reduces costs, and increases production efficiency.
[0044] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0045] This application provides a production system, optionally used for producing finished lithium battery materials. The production system includes a slurry preparation unit, a liquid preparation unit, and a reaction unit. The slurry preparation unit is used to produce or temporarily store the reaction slurry for use in the reaction, while the liquid preparation unit is used to produce or temporarily store the reaction liquid for use in the reaction. The reaction slurry and reaction liquid undergo the next stage of reaction operation in the reaction unit.
[0046] Please refer to the reference. Figure 1 The reaction apparatus 100 proposed in this application includes a reaction vessel 10, a first transfer assembly 20, a second transfer assembly 30, and a metering device. The reaction vessel 10 has a receiving cavity 11. The first transfer assembly 20 connects the slurry equipment and the reaction vessel 10 and is used to deliver reaction slurry into the receiving cavity 11. The second transfer assembly 30 connects the liquid equipment and the reaction vessel 10 and is used to deliver reaction liquid into the receiving cavity 11. The metering device is used to weigh the mass of the reaction slurry in the receiving cavity 11 and obtain the volume of the reaction slurry in the receiving cavity 11, thereby controlling the mass of reaction liquid delivered to the receiving cavity 11 by the second transfer assembly 30.
[0047] The shape of the reaction vessel 10 can be a cylindrical body, a prismatic body, or other structures, and is not limited thereto.
[0048] The first transfer assembly 20 is provided with a first channel communicating with the receiving cavity 11. Exemplarily, the first transfer assembly 20 includes a slurry pipe having the first channel. One end of the slurry pipe is connected to a slurry equipment, and the other end is connected to the reaction vessel 10.
[0049] The second transfer assembly 30 is provided with a second channel, which communicates with the receiving cavity 11. Exemplarily, the second transfer assembly 30 includes a liquid pipe with the second channel. One end of the liquid pipe is connected to a liquid handling device, and the other two ends are connected to the reaction vessel 10.
[0050] The metering device includes a weighing component 40, a volume detection component 50, and a controller 60.
[0051] The weighing component 40 is configured to support the reaction vessel 10. Optionally, after adding slurry or liquid to the reaction vessel 10, the weight of the reaction vessel 10 increases, and the weighing component 40 can calculate the mass of the material based on the increase in weight. Thus, after adding reaction slurry to the reaction vessel 10, the weighing component 40 can measure the mass of the reaction slurry.
[0052] The volume detection component 50 is used to detect the volume of the material in the receiving cavity 11. Optionally, the volume detection component 50 can directly measure or indirectly calculate the material volume. After the reaction slurry is added into the reaction vessel 10, the volume detection component 50 can measure the volume of the reaction slurry.
[0053] The controller 60 is signal-connected to the weighing component 40, the volume detection component 50, and the second transmission component 30. The controller 60 is configured to control the second transmission component 30 to deliver the reaction liquid to the receiving cavity 11 based on the slurry mass and slurry volume.
[0054] It should be noted that the controller 60 can be directly connected to the weighing component 40, the volume detection component 50, and the second transmission component 30 via wires, or can also be connected wirelessly via Bluetooth or other means.
[0055] Compared to existing technologies that use metering pumps or similar methods to control the input of reactants at the slurry input side, the technical solution of this application directly detects the mass and volume of the reaction slurry by setting a weighing component 40 and a volume detection component 50 in the reaction vessel 10. This facilitates the calculation of the actual parameters of the reaction slurry and avoids feeding errors caused by sedimentation and non-uniformity of the reaction slurry during transportation. Furthermore, this technical solution uses the mass and volume of the reaction slurry in the reaction vessel 10 to control the mass of the added reaction liquid, ensuring accurate proportioning of reactants and improving feeding precision.
[0056] Furthermore, the technical solution of this application, while ensuring the accuracy of material feeding, avoids the process of manual calculation, reduces human intervention, thereby reducing labor costs, and can also reduce sampling and testing time and waiting time, avoiding affecting the production cycle and improving production efficiency.
[0057] Combination Figure 1 and Figure 2 In one embodiment, the reaction vessel 10 includes a vessel body and lugs 13. The vessel body is generally cylindrical, and a receiving cavity 11 is formed inside the vessel body. There are multiple lugs 13, which are arranged at intervals along the circumference of the vessel body. The weighing assembly 40 includes multiple weighing gauges 41, which are supported one-to-one below the multiple lugs 13. Optionally, the weighing gauge 41 includes an upwardly elastically extending probe, and the lugs 13 abut against the probe.
[0058] For example, the reaction vessel 10 may be provided with three lugs 13, with a 120° interval between two adjacent lugs 13, or the reaction vessel 10 may be provided with four lugs 13, with a 90° interval between two adjacent lugs 13. Providing multiple lugs 13 in conjunction with multiple weighing gauges 41 for weighing not only helps stabilize the reaction vessel 10, but also facilitates accurate weighing.
[0059] like Figure 1 and Figure 2 As shown, in one embodiment, the volume detection component 50 includes a level gauge 51, which is signal-connected to the controller 60. Optionally, the level gauge 51 can be a radar level gauge, suspended above the reaction slurry in the containment cavity 11. It transmits microwave pulses to the liquid surface in the containment cavity 11 via an antenna and receives the echoes. The liquid level height in the containment cavity 11 is determined by calculating the round-trip time of the beam. The controller 60 determines the slurry volume based on the liquid level height.
[0060] Furthermore, the volume detection component 50 may include multiple level gauges 51, all of which are signal-connected to the controller 60. The level gauges 51 are radar level gauges, and all are suspended above the reaction slurry within the containment cavity 11. The projections of the multiple level gauges 51 onto the horizontal plane at their installation location on the reaction vessel 10 are spaced apart. After the reaction slurry enters the containment cavity 11, the surface of the reaction slurry is approximately parallel to the horizontal plane. That is, the multiple level gauges 51 are spaced apart above multiple points on the surface of the reaction slurry. The controller 60 determines the liquid level height of the reaction slurry within the containment cavity 11 based on the average of the measurements from the multiple level gauges 51. Thus, by measuring the liquid level height at multiple points on the surface of the reaction slurry and using the average of the measurements as the liquid level height, errors caused by uneven liquid surfaces can be reduced, and measurement accuracy can be improved.
[0061] To further improve accuracy, the controller 60 can perform multiple measurements and determine the liquid level height based on the average of these measurements. Notably, the controller 60 can measure the liquid level height after the reaction slurry has been allowed to stand in the receiving cavity 11 for a period of time, thus maintaining the stability of the slurry's surface. For example, the controller 60 can perform the measurement after the reaction slurry has stood for 5-8 minutes.
[0062] Of course, in other embodiments, the level gauge 51 may also take other forms, such as an ultrasonic level gauge 51, etc., without limitation.
[0063] In this embodiment, the controller 60 includes a storage unit 61 and a determination unit 62, which are communicatively connected. The storage unit 61 stores a first correspondence between the liquid level and the slurry volume. The determination unit 62 retrieves the first correspondence, determines the slurry volume based on the liquid level and the first correspondence, and determines the liquid mass based on the slurry mass and the slurry volume.
[0064] Understandably, the first correspondence can be a logical calculation formula about the liquid level and the slurry volume, so that a unique slurry volume can be obtained when the liquid level is input. Alternatively, the first correspondence can be a data file that records a one-to-one mapping relationship between the liquid level and the slurry volume. These data files can be obtained in advance through experiments and stored in the storage unit 61.
[0065] Thus, the controller 60 of this application embodiment can dynamically compensate for volume errors caused by slurry settling and uneven distribution by combining the preset first correspondence with the measurement results of the level gauge 51, providing high-precision volume data for the next step of calculation.
[0066] After obtaining the slurry volume and mass, the determining unit 62 can calculate the average density of the reactive slurry within the receiving cavity 11 based on the slurry volume and mass. In one embodiment, the storage unit 61 is also used to store a second correspondence between the slurry density and the slurry solid content of the reactive slurry within the receiving cavity 11. Understandably, the second correspondence can be a logical calculation formula regarding the slurry density and slurry solid content, where a uniquely determined slurry solid content can be obtained by inputting the slurry density. Alternatively, the second correspondence can also be a data file recording a one-to-one mapping relationship between slurry density and slurry solid content, which can be obtained experimentally beforehand and stored in the storage unit 61.
[0067] The solid content of the slurry refers to the mass of solid particles in the slurry. The determining unit 62 can determine the solid content of the slurry based on the slurry density and the corresponding relationship between the two. The amount of solid content in the slurry determines the mass of the reaction liquid to be delivered into the reaction vessel 10; therefore, the determining unit 62 determines the liquid mass based on the solid content of the slurry. Thus, through real-time feedback control by the controller 60, the dynamic adjustment of the liquid mass of the reaction liquid is achieved, ensuring the accurate ratio of the reaction slurry and the reaction liquid.
[0068] In some embodiments, the second transmission component 30 further includes a flow meter connected to the liquid pipe for detecting the volume of the liquid flowing through the reaction liquid. The flow meter can be an ultrasonic flow meter, a volumetric flow meter, etc., and is not limited thereto. By detecting the flow rate of the reaction liquid flowing through the second channel, the volume of the reaction liquid can be obtained. Since the reaction liquid is a solution with a stable density, the controller 60 can determine the liquid mass based on the liquid volume and density to achieve precise feeding and ensure accurate proportions of the reaction slurry and the reaction liquid.
[0069] Furthermore, the second transfer assembly 30 also includes a liquid pump, which is signal-connected to the controller 60 and connected to a liquid pipe. The controller 60 controls the liquid pump to open to deliver the reaction liquid into the receiving cavity 11, and when it detects that the second transfer assembly 30 has delivered the required mass of reaction liquid, the controller 60 shuts off the liquid pump.
[0070] Furthermore, in one embodiment, the flow meter and the liquid pump can be integrated into one unit, simultaneously measuring the flow rate of the reaction liquid flowing through the second channel and initiating and ending the delivery of the reaction liquid into the receiving cavity 11. This improves structural integration, reduces the number of parts, and increases installation efficiency.
[0071] For ease of explanation, let's assume... Figure 1 The vertical direction. Along Figure 1 As shown in the vertical direction, the reaction vessel 10 has an inlet 12 at its top, which connects to the receiving cavity 11. The inlet 12 can be used to add reaction slurry and reaction liquid. The first channel and the second channel are connected to the receiving cavity 11 through the inlet 12. The reaction slurry and reaction liquid can be added through the same inlet 12 or through different inlets 12.
[0072] In one embodiment, the reaction apparatus 100 further includes a stirring device 70. The stirring device 70 includes a driver 71 and a stirring rod 72. The driver 71 is connected to one end of the reaction vessel 10 near the inlet 12, and the stirring rod 72 extends into the receiving cavity 11 along the central axis of the reaction vessel 10 from the inlet 12. The driver 71 can be a motor. The driver 71 can be fixed outside the inlet 12 of the reaction vessel 10 to reduce its space occupation in the receiving cavity 11. One end of the stirring rod 72 is connected to the output shaft of the driver 71, and the other end extends into the receiving cavity 11. The end of the stirring rod 72 extending into the receiving cavity 11 has blades. When the driving component drives the stirring to rotate, the blades agitate the materials in the receiving cavity 11, ensuring thorough mixing of the reaction slurry and reaction liquid, making the reaction more complete, and guaranteeing the quality of the reaction products.
[0073] Optionally, the bottom wall of the receiving cavity 11 is constructed as an arched surface that rises away from the inlet 12. The bottom wall of the receiving cavity 11 is the wall surface inside the receiving cavity 11 opposite to the inlet 12. Setting the bottom wall of the receiving cavity 11 as an arched surface allows the bottom of the receiving cavity 11 to better match the end of the stirring rod 72, significantly reducing the formation of dead zones at the bottom, effectively preventing sedimentation and agglomeration, and enabling faster and more uniform mixing of the reaction slurry and reaction liquid.
[0074] It should be noted that the division of units is merely a logical functional division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.
[0075] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0076] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.
[0077] Finally, it should be noted that other embodiments of this application will readily conceive of by those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and alterations may be made without departing from its scope. The scope of this application is limited only by the appended claims.
Claims
1. A reaction apparatus, characterized in that, include: A reaction vessel having a receiving cavity; A first transmission component has a first channel communicating with the receiving cavity; The second transmission component has a second channel communicating with the receiving cavity; as well as The metering device includes a weighing component, a volume detection component, and a controller. The weighing component is configured to support the reaction vessel, and the controller is signal-connected to the weighing component, the volume detection component, and the second transmission component. The first transmission component is used to deliver the reaction slurry to the containment cavity. The controller is configured to obtain the slurry mass of the reaction slurry in the containment cavity through the weighing component and the slurry volume of the reaction slurry in the containment cavity through the volume detection component. Based on the slurry mass and the slurry volume, the controller controls the second transmission component to deliver the reaction liquid mass to the containment cavity.
2. The reaction apparatus according to claim 1, characterized in that, The second transmission component includes: Liquid feed tube, having the second channel; and A flow meter, connected to the liquid pipe and signal-connected to the controller, is used to detect the flow rate of the reaction liquid in the liquid pipe. The controller determines the mass of the liquid based on the flow rate.
3. The reaction apparatus according to claim 1, characterized in that, The volume detection component includes a level gauge, and the controller obtains the liquid level height of the reaction slurry in the containment cavity through the level gauge. The controller is configured to determine the volume of the slurry based on the liquid level height.
4. The reaction apparatus according to claim 3, characterized in that, The volume detection component includes multiple liquid level gauges, each of which is connected to the controller signal, and the projections of the multiple liquid level gauges on the horizontal plane at the installation position of the reaction vessel are spaced apart. The controller determines the liquid level height based on the average of the measurements from multiple level gauges.
5. The reaction apparatus according to claim 3, characterized in that, The controller includes: Storage unit, used to store a first correspondence between the liquid level height and the slurry volume; and The determining unit is used to retrieve the first correspondence relationship, determine the slurry volume based on the liquid level height and the first correspondence relationship, and determine the liquid mass based on the slurry mass and the slurry volume.
6. The reaction apparatus according to claim 5, characterized in that, The storage unit is also used to store a second correspondence between the slurry density and the slurry solid content of the reaction slurry in the containment cavity; The determining unit determines the slurry density based on the slurry mass and the slurry volume, and determines the slurry solid content based on the slurry density and the second correspondence, and the determining unit determines the liquid mass based on the slurry solid content.
7. The reaction apparatus according to claim 1, characterized in that, The reaction vessel is provided with multiple lugs spaced circumferentially, and the weighing assembly includes: Multiple weights are supported under the multiple lugs, one for each of them.
8. The reaction apparatus according to any one of claims 1 to 7, characterized in that, The receiving cavity has an inlet, and the first channel and the second channel are connected to the receiving cavity through the inlet; The bottom wall of the receiving cavity is constructed as an arc surface that arches away from the inlet.
9. The reaction apparatus according to claim 8, characterized in that, Also includes: A stirring device includes a driver and a stirring rod. The driver is connected to one end of the reaction vessel near the inlet, and the stirring rod extends from the inlet into the receiving cavity along the central axis of the reaction vessel.
10. A production system, characterized in that, include: The reaction apparatus as described in any one of claims 1 to 9; A slurry equipment, connected to the first transfer component, is used to deliver reaction slurry to the reaction vessel through the first channel; as well as A liquid feed device, connected to the second transfer component, is used to deliver reaction liquid to the reaction vessel through the second channel.