Reaction kettle for preventing cobalt hydroxide from agglomerating
By introducing a dual stirring assembly and a multi-layer stirring structure into the reactor, the agglomeration problem of cobalt hydroxide during the preparation process was solved, achieving thorough stirring, preventing agglomeration, and improving preparation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-06
- Publication Date
- 2026-04-14
AI Technical Summary
Existing reactors are prone to agglomeration during the preparation of cobalt hydroxide, resulting in insufficient stirring.
The design employs a dual-stirring assembly, comprising a first stirring assembly and a second stirring assembly. The first stirring assembly uses a stirring paddle and a hollow shaft, while the second stirring assembly uses a propeller. Combined with guide components, auger blades, a shear cage, and support legs, the design achieves multi-level stirring and prevents cobalt hydroxide from agglomerating.
This method achieves thorough stirring of the cobalt hydroxide preparation solution, effectively preventing agglomeration and improving preparation efficiency.
Smart Images
Figure CN224113976U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of reaction vessels, and more particularly to a reaction vessel made of steel plate to prevent cobalt hydroxide agglomeration. Background Technology
[0002] A reaction vessel is a piece of equipment used for chemical reactions, physicochemical processes, and laboratory research. It is typically made of steel plates of a certain thickness, possessing high corrosion resistance and the ability to withstand high temperatures and pressures. It is widely used in pharmaceuticals, chemicals, food processing, and other fields to meet the needs of different processes. Depending on different process requirements, it can be classified into atmospheric pressure reaction vessels, high-pressure reaction vessels, vacuum reaction vessels, etc.
[0003] Cobalt hydroxide is an important cobalt-based compound, possessing both chemical stability and unique physicochemical properties, and has wide applications in batteries, catalysis, and pigments. A common method for preparing cobalt hydroxide involves a metathesis reaction between a soluble cobalt salt and an alkaline source in the liquid phase, producing a cobalt hydroxide precipitate. The core reaction is: Co… 2+ +2OH - →Co(OH)₂↓. The preparation of cobalt hydroxide typically involves an atmospheric pressure reactor equipped with a stirrer to agitate the reaction mixture. Due to the high specific surface area and surface energy of cobalt hydroxide, according to thermodynamic principles, the system will reduce its surface energy through interparticle interactions, leading to the spontaneous aggregation of small particles into larger agglomerates. Utility Model Content
[0004] In view of this, the present invention provides a reaction vessel for preventing cobalt hydroxide agglomeration, which solves the technical problem of cobalt hydroxide agglomeration in existing reaction vessels.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0006] A reaction vessel for preventing cobalt hydroxide agglomeration, the reaction vessel includes a vessel body, a first stirring assembly and a second stirring assembly, the vessel body includes a detachably connected upper cover and a main body, the upper cover can be fastened to the main body and together with the main body to form a sealed space capable of containing a cobalt hydroxide preparation liquid;
[0007] The first stirring assembly passes through the upper cover. The first stirring assembly includes a first driving member and a stirring paddle. The first driving member is installed on the upper cover. The driving part of the first driving member passes through the upper cover and is connected to the stirring paddle. The shaft of the stirring paddle is a hollow shaft, and a through hole is provided on the side wall of the hollow shaft.
[0008] The second stirring assembly is disposed within the body. The second stirring assembly includes a second driving member and a propeller. The second driving member is mounted on the body. The driving part of the second driving member passes through the body and is connected to the propeller. The rotation of the propeller can drive the cobalt hydroxide preparation liquid into the hollow shaft and out through the through hole.
[0009] In some embodiments of the cobalt hydroxide reactor, the reactor further includes a guide member located between the stirring paddle and the propeller and fixedly connected to the hollow shaft. The guide member is a hollow structural component and communicates with the hollow shaft. The diameter of the guide member decreases sequentially along the flow direction driven by the propeller.
[0010] In some embodiments of the cobalt hydroxide reactor, the guide is fixedly connected to the end of the hollow shaft near the propeller.
[0011] In some embodiments of the cobalt hydroxide reactor, the guide is fixedly connected to the inner wall of the hollow shaft.
[0012] In some embodiments of the cobalt hydroxide reactor, the first stirring assembly further includes auger blades, which are housed in the hollow shaft and fixedly connected to the inner wall of the hollow shaft.
[0013] In some embodiments of the cobalt hydroxide reactor, the reactor further includes a shear cage and a plurality of connecting rods. One end of each connecting rod is detachably and fixedly connected to the inner wall of the body or the top cover, and the other end is fixedly connected to the shear cage. When the top cover and the body are fastened together, the shear cage is fitted onto the hollow shaft and corresponds to the position of the through hole. The shear cage includes a cage mesh and a cutting blade, and the cutting blade is fixedly installed on the inner wall of the cage mesh.
[0014] In some embodiments of the cobalt hydroxide reactor, each of the connecting rods is internally fitted with a copper plate, one end of which contacts the inner wall of the reactor and the other end of which contacts the shear cage, which is made of stainless steel, and the reactor body is grounded.
[0015] In some embodiments of the cobalt hydroxide reactor, the reactor further includes multiple legs, each of which is fixedly connected to the body and used to support the body.
[0016] Implementing the embodiments of this utility model will have at least the following beneficial effects:
[0017] The aforementioned cobalt hydroxide reactor has the technical effect of thorough stirring. Specifically, the reactor of this invention includes a reactor body, a first stirring component, and a second stirring component. Both the first and second stirring components can stir the cobalt hydroxide preparation liquid. When the propeller in the second stirring component stirs, it can drive the cobalt hydroxide preparation liquid into the hollow shaft of the stirring paddle in the first stirring component, and then flow out from the through hole on the hollow shaft. This forms thorough stirring of the cobalt hydroxide preparation liquid, prevents agglomeration, and thus solves the technical problem of agglomeration in the preparation of cobalt hydroxide in existing reactors. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the reactor structure in one embodiment;
[0020] Figure 2 for Figure 1 The top view of the reactor shown;
[0021] Figure 3 for Figure 2 Cross-sectional view of section AA in the middle;
[0022] Figure 4 for Figure 2 The cross-sectional structure of the vessel body in the AA section view;
[0023] Figure 5 for Figure 4 A magnified structural diagram of part B in the middle section;
[0024] Figure 6 This is a schematic diagram of the structure of the first stirring component in one embodiment.
[0025] in:
[0026] 1. Vessel body; 11. Top cover; 12. Main body; 2. First stirring assembly; 21. First driving component; 22. Stirring paddle; 221. Hollow shaft; 2211. Through hole; 222. Screwdriver blade; 3. Second stirring assembly; 31. Second driving component; 32. Propeller; 4. Guide component; 5. Shear cage; 51. Cage mesh; 52. Blade; 6. Connecting rod; 7. Support leg. Detailed Implementation
[0027] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many other different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0028] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0030] It should be emphasized and explained that the various connection methods involved in this utility model can be arbitrary unless otherwise specified. For example, fixed connection can be achieved by bolts and nuts for detachable fixing, welding or integral molding, etc. Sliding connection can be achieved by groove-like or guide rail-like structures of various shapes, and rotating connection can be achieved by hinges, shafts, etc. Any existing method that can achieve the corresponding connection relationship is acceptable.
[0031] The following is combined Figure 1-6 The reaction vessel involved in this utility model will be further explained and described.
[0032] In an embodiment of a reaction vessel for preventing cobalt hydroxide agglomeration, the reaction vessel includes a vessel body 1, a first stirring assembly 2, and a second stirring assembly 3. The vessel body 1 includes a detachably connected upper cover 11 and a body 12. The upper cover 11 can be fastened to the body 12 and together with the body 12 form a sealed space capable of containing the cobalt hydroxide preparation liquid. The first stirring assembly 2 passes through the upper cover 11 and includes a first driving component 21 and a stirring paddle 22. The first driving component 21 is mounted on the upper cover 11, and the first driving component 21 drives... The part passes through the upper cover 11 and is connected to the stirring paddle 22. The shaft of the stirring paddle 22 is a hollow shaft 221, and a through hole 2211 is provided on the side wall of the hollow shaft 221. The second stirring assembly 3 passes through the body 12. The second stirring assembly 3 includes a second driving member 31 and a propeller 32. The second driving member 31 is installed on the body 12. The driving part of the second driving member 31 passes through the body 12 and is connected to the propeller 32. The rotation of the propeller 32 can drive the cobalt hydroxide preparation liquid into the hollow shaft 221 and out through the through hole 2211.
[0033] In this embodiment, both the first stirring component 2 and the second stirring component 3 can stir the cobalt hydroxide preparation liquid. When the propeller 32 in the second stirring component 3 stirs, it can drive the cobalt hydroxide preparation liquid into the hollow shaft 221 of the stirring paddle 22 in the first stirring component 2, and then flow out from the through hole 2211 on the hollow shaft 221. This forms sufficient stirring of the cobalt hydroxide preparation liquid, prevents agglomeration, and thus solves the technical problem of agglomeration in the preparation of cobalt hydroxide in existing reaction vessels.
[0034] Preferably, the axes of the stirring paddle 22 and the propeller 32 are collinear. Specifically, both the first driving component 21 and the second driving component 31 are electric motors.
[0035] Additionally, it should be noted that the cobalt hydroxide preparation solution refers to a mixture of soluble cobalt salt and an alkali source in the liquid phase. Both the first drive component 21 and the second drive component 31 are electric motors.
[0036] In one embodiment of a reactor for preventing cobalt hydroxide agglomeration, the reactor further includes a guide 4 located between the agitator 22 and the propeller 32 and fixedly connected to the hollow shaft 221. The guide 4 is a hollow structural component and communicates with the hollow shaft 221. The diameter of the guide 4 decreases sequentially along the flow direction driven by the propeller 32.
[0037] In this embodiment, combined with Figure 6 As shown, the guide 4 has a flared structure, which can play a guiding role. The flared structure is also tapered, which can increase the flow rate of the cobalt hydroxide preparation liquid into the hollow shaft 221, thereby facilitating the circulation of the cobalt hydroxide preparation liquid and achieving a better stirring effect.
[0038] In one embodiment of a reactor designed to prevent cobalt hydroxide agglomeration, the guide 4 is fixedly connected to the end of the hollow shaft 221 near the propeller 32.
[0039] In the previous embodiment, the guide 4 can be fixedly connected to the outer wall of the hollow shaft 221. However, its flared structure design creates a space between it and the hollow shaft 221, which can cause the cobalt hydroxide preparation liquid to accumulate. In this embodiment, by fixing the guide 4 to the end of the hollow shaft 221 to form a docking of the two ports, a better docking effect can be achieved, avoiding dead angles between the guide 4 and the hollow shaft 221.
[0040] In one embodiment of a reactor designed to prevent cobalt hydroxide agglomeration, the guide 4 is fixedly connected to the inner wall of the hollow shaft 221.
[0041] In the previous embodiment, the guide 4 could be fixedly connected to the outer wall of the hollow shaft 221. However, its flared structure would create a space between it and the hollow shaft 221, causing the cobalt hydroxide preparation liquid to accumulate. In this embodiment, the guide 4 is fixedly connected to the inner wall of the hollow shaft 221. That is, a part of the guide 4 can extend into the hollow shaft 221 to be fixed to the inner wall of the hollow shaft 221. This allows the cobalt hydroxide preparation liquid passing through the guide 4 to be better guided into the hollow shaft 221.
[0042] In one embodiment of a reactor designed to prevent cobalt hydroxide agglomeration, the first stirring assembly 2 further includes an auger blade 222, which is housed in a hollow shaft 221 and fixedly connected to the inner wall of the hollow shaft 221.
[0043] In this embodiment, the auger blades 222 and the hollow shaft 221 are combined to form an auger structure, so that they can rotate together under the drive of the first drive member 21. The rotation of the auger structure can cooperate with the propeller 32 to make the cobalt hydroxide preparation liquid flow better and more smoothly, and the rotation of the auger structure can share part of the driving pressure of the propeller 32.
[0044] In one embodiment of a reactor for preventing cobalt hydroxide agglomeration, the reactor further includes a shear cage 5 and multiple connecting rods 6. One end of each connecting rod 6 is detachably and fixedly connected to the inner wall of the body 12 or the top cover 11, and the other end is fixedly connected to the shear cage 5. When the top cover 11 and the body 12 are fastened together, the shear cage 5 is fitted onto the hollow shaft 221 and corresponds to the position of the through hole 2211. The shear cage 5 includes a cage mesh 51 and a cutting blade 52. The cutting blade 52 is fixedly installed on the inner wall of the cage mesh 51.
[0045] In this embodiment, by setting a shear cage 5, the cobalt hydroxide preparation liquid flowing out of the through hole 2211 can be sheared to prevent agglomeration. The shear cage 5 is annular and sleeve-shaped, and is suspended by multiple connecting rods 6, so that it can be sleeved outside the hollow shaft 221.
[0046] It is understandable that the body 12 and the top cover 11 can be detachably connected without rotation. When the connecting rod 6 is fixedly connected to the inner wall of the body 12, the hollow shaft 221 can be inserted into the shear cage 5 during the process of fastening the top cover 11 to the body 12. When the connecting rod 6 is fixedly connected to the inner wall of the top cover 11, the hollow shaft 221 can be inserted into the shear cage 5 during the process of installing the top cover 11. In the subsequent opening and closing of the cover, there is no need for alignment.
[0047] In one embodiment of a reactor designed to prevent cobalt hydroxide agglomeration, each connecting rod 6 has a copper plate embedded inside it. One end of each copper plate contacts the inner wall of the reactor body 1, and the other end contacts the shear cage 5, which is made of stainless steel. The reactor body 1 is grounded.
[0048] In this embodiment, specifically, the outer wrapping material of the copper plate in the connecting rod 6 can be tetrafluoroethylene. By setting the copper plate inside the connecting rod 6, in conjunction with the stainless steel shear cage 5, the static electricity in the cobalt hydroxide preparation solution can be conducted to the reaction vessel. Reducing static electricity can further improve the effect of preventing the cobalt hydroxide preparation solution from agglomerating.
[0049] In one embodiment of a reactor designed to prevent cobalt hydroxide agglomeration, the reactor further includes multiple legs 7, each of which is fixedly connected to the body 12 and used to support the body 12.
[0050] In this embodiment, by setting multiple support legs 7, the main body 12 can be supported, thereby making it convenient to place the second driving component 31 at the bottom of the main body 12 and to place the reaction vessel vertically.
[0051] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0052] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A reaction vessel for preventing cobalt hydroxide agglomeration, characterized in that, The reactor includes a vessel body, a first stirring assembly, and a second stirring assembly. The vessel body includes a detachably connected upper cover and a main body. The upper cover can be fastened to the main body and together with the main body to form a sealed space capable of containing the cobalt hydroxide preparation solution. The first stirring assembly passes through the upper cover. The first stirring assembly includes a first driving member and a stirring paddle. The first driving member is installed on the upper cover. The driving part of the first driving member passes through the upper cover and is connected to the stirring paddle. The shaft of the stirring paddle is a hollow shaft, and a through hole is provided on the side wall of the hollow shaft. The second stirring assembly is disposed within the body. The second stirring assembly includes a second driving member and a propeller. The second driving member is mounted on the body. The driving part of the second driving member passes through the body and is connected to the propeller. The rotation of the propeller can drive the cobalt hydroxide preparation liquid into the hollow shaft and out through the through hole.
2. The reaction vessel as described in claim 1, characterized in that, The reactor also includes a guide member located between the stirring paddle and the propeller and fixedly connected to the hollow shaft. The guide member is a hollow structural component and communicates with the hollow shaft. The diameter of the guide member decreases sequentially along the flow direction driven by the propeller.
3. The reaction vessel as described in claim 2, characterized in that, The guide component is fixedly connected to the end of the hollow shaft near the propeller.
4. The reaction vessel as described in claim 2, characterized in that, The guide component is fixedly connected to the inner wall of the hollow shaft.
5. The reaction vessel as described in claim 1, characterized in that, The first stirring assembly further includes auger blades, which are housed in the hollow shaft and fixedly connected to the inner wall of the hollow shaft.
6. The reaction vessel as described in claim 1, characterized in that, The reactor also includes a shear cage and multiple connecting rods. One end of each connecting rod is detachably and fixedly connected to the inner wall of the main body or the upper cover, and the other end is fixedly connected to the shear cage. When the upper cover and the main body are fastened together, the shear cage is fitted onto the hollow shaft and corresponds to the position of the through hole. The shear cage includes a cage mesh and a cutting blade. The cutting blade is fixedly installed on the inner wall of the cage mesh.
7. The reaction vessel as described in claim 6, characterized in that, Each of the connecting rods has a copper plate embedded inside. One end of each copper plate contacts the inner wall of the vessel and the other end contacts the shear cage. The shear cage is made of stainless steel and the vessel is grounded.
8. The reaction vessel as described in claim 1, characterized in that, The reactor also includes multiple legs, each of which is fixedly connected to the main body and used to support the main body.