Polyacrylamide polymerization device
Through the dual design of external and internal heat dissipation components, the problem of low stirring and heat dissipation efficiency in the polyacrylamide emulsion polymerization device is solved, and uniform cooling inside and outside the tank is achieved, ensuring product quality and production efficiency.
Patent Information
- Application Number
- CN202422459399.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-11
AI Technical Summary
The existing polyacrylamide emulsion polymerization devices have low efficiency and unevenness in stirring and heat dissipation, resulting in unqualified product quality.
The dual design of external heat dissipation components and internal heat dissipation components is adopted. The external heat dissipation components cool the outer wall of the reaction tank through the cooling liquid circulation, and the internal heat dissipation components directly cool the raw materials through the hollow agitation shaft and the stirring blades, achieving simultaneous cooling between inside and outside the tank.
It improves cooling efficiency, ensures temperature uniformity and product quality during polymerization, and is suitable for large-scale production.
Smart Images
Figure CN223170923U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of polyacrylamide production, in particular to a polyacrylamide polymerization device. Background Art
[0002] Polyacrylamide flocculants are widely used in oil production, water treatment, papermaking, mining and metallurgy, textiles, building materials, agriculture, food and medicine. They are usually divided into four categories: aqueous solution, dry powder, emulsion and water dispersion. Among them, emulsion polyacrylamide can be quickly dissolved and used, and has become the preferred flocculant for many enterprises and units.
[0003] Polyacrylamide emulsion polymerization needs to overcome the problem of unqualified synthetic materials caused by excessively high temperatures. Existing polyacrylamide emulsion polymerization devices stir the polymerization process through the rotation of a stirring structure and the current ultrasonic mixing method. Heat dissipation requires the addition of a water injection layer outside the outer tank, which increases the difficulty of tank processing and has a good cooling effect only on the peripheral materials inside the tank. The heat dissipation is uneven, making it difficult to ensure product quality. Utility Model Content
[0004] The purpose of the utility model is to provide a polyacrylamide polymerization device to solve the above problems existing in the current polyacrylamide polymerization.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] A polyacrylamide polymerization device comprises a reaction tank body, an external heat dissipation component and an internal heat dissipation component, wherein the reaction tank body is provided with a feed port at the top and a discharge port at the bottom, the external heat dissipation component comprises a first cooling liquid inlet and a first cooling liquid outlet respectively provided on the outer wall of the reaction tank body, and a cooling cavity provided inside the reaction tank body, wherein the first cooling liquid inlet and the first cooling liquid outlet are both connected to the cooling cavity, and the internal heat dissipation component comprises a hollow stirring shaft and a stirring blade, wherein the hollow stirring shaft is rotatably provided on the reaction tank body, and the two ends of the hollow stirring shaft respectively have a second cooling liquid inlet and a second cooling liquid outlet, and the side wall of the hollow stirring shaft is connected to the stirring blade, wherein the stirring blade has a third cooling liquid inlet and a third cooling liquid outlet, and the cooling liquid passes through the second cooling liquid inlet, the third cooling liquid inlet and the third cooling liquid outlet in sequence and is output through the second cooling liquid outlet to cool the polyacrylamide raw material in the reaction tank body.
[0007] Furthermore, the stirring blade is serpentine-shaped and hollow, the two ends of the stirring blade are spaced apart and are connected to the side wall of the hollow stirring shaft, the third coolant inlet is located at one end of the stirring blade, and the third coolant outlet is located at the other end of the stirring blade.
[0008] Further, a plurality of arc portions are provided on the stirring blade, and each of the arc portions is connected to the side wall of the hollow stirring shaft to fix the stirring blade.
[0009] Further, a plurality of groups of stirring blades are provided, and the stirring blades of each group are circumferentially connected to the side wall of the hollow stirring shaft at intervals.
[0010] Further, both the first coolant inlet and the first coolant outlet are located outside the tank body, and 360-degree rotary joints are provided on both the first coolant inlet and the first coolant outlet.
[0011] Further, a driving gear is provided on the hollow stirring shaft, and the hollow stirring shaft is driven to rotate through the driving gear to mix the polyacrylamide raw materials in the tank body.
[0012] Advantages of the utility model:
[0013] Through the dual design of the external heat dissipation component and the internal heat dissipation component, the utility model realizes the simultaneous cooling of the inside and outside of the reaction tank body. The external heat dissipation component cools the outer wall of the reaction tank through the coolant circulation, and the internal heat dissipation component directly introduces the coolant into the internal reaction system through the hollow design of the hollow stirring shaft and the stirring blade to directly cool the polyacrylamide raw materials, thereby greatly improving the cooling efficiency and effectively solving the problem of excessive temperature during the polymerization process. Description of the drawings
[0014] Figure 1 is a schematic structural diagram of the polyacrylamide polymerization device of the utility model;
[0015] Figure 2 is a schematic sectional view of the polyacrylamide polymerization device of the utility model;
[0016] Figure 3 is a schematic structural diagram of the internal heat dissipation component in the polyacrylamide polymerization device of the utility model;
[0017] Figure 4 is a schematic structural diagram of the stirring blade in the polyacrylamide polymerization device of the utility model.
[0018] The names corresponding to the marks in the figure:
[0019] 1. Reaction tank body, 11. Feed inlet, 12. Discharge outlet, 13. 360-degree rotary joint,
[0020] 2. External heat dissipation component, 21. First coolant inlet, 22. First coolant outlet, 23. Cooling cavity,
[0021] 3. Internal heat dissipation component, 31. Hollow stirring shaft, 311. Second coolant inlet, 312. Second coolant outlet, 313. Driving gear, 32. Stirring blade, 321. Third coolant inlet, 322. Third coolant outlet, 323. Arc part. Detailed implementation mode
[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.
[0023] As Figures 1 to 4 shown, a polyacrylamide polymerization device includes a reaction tank body 1, an external heat dissipation component 2 and an internal heat dissipation component 3.
[0024] A feed inlet 11 is provided at the top of the reaction tank body 1 for adding polyacrylamide raw materials and other necessary additives; a discharge outlet 12 is provided at the bottom for discharging the polymerized product. The design of the reaction tank body 1 facilitates the addition of raw materials and the discharge of products, and at the same time ensures the sealing performance during the reaction process.
[0025] The external heat dissipation component 2 includes a first coolant inlet 21 and a first coolant outlet 22 respectively provided on the outer wall of the reaction tank body 1, and a cooling cavity 23 provided inside the reaction tank body 1. The first coolant inlet 21 and the first coolant outlet 22 are both communicated with the cooling cavity 23 to form a closed coolant circulation loop for cooling the outer wall of the reaction tank body 1 to prevent the temperature from being too high during the polymerization process.
[0026] The internal heat dissipation component 3 includes a hollow stirring shaft 31 and a stirring blade 32. The hollow stirring shaft 31 is rotatably arranged on the reaction tank body 1, and its two ends respectively have a second coolant inlet 311 and a second coolant outlet 312 for the input and output of the coolant. The side wall of the hollow stirring shaft 31 is connected with the stirring blade 32. The stirring blade 32 is arranged in a serpentine bend and is hollow-designed to increase the contact area with the coolant and improve the cooling efficiency. The two ends of the stirring blade 32 are arranged at intervals and are both communicated with the side wall of the hollow stirring shaft 31 to form a coolant flow channel. The stirring blade 32 has a third coolant inlet 321 and a third coolant outlet 322. The third coolant inlet 321 is located at one end of the stirring blade 32, and the third coolant outlet 322 is located at the other end of the stirring blade 32. After the coolant passes through the second coolant inlet 311, the third coolant inlet 321, and the third coolant outlet 322 in sequence, it is output through the second coolant outlet 312 to cool the polyacrylamide raw materials in the reaction tank body 1.
[0027] As Figure 3 and Figure 4As shown, the stirring blade 32 has a plurality of arc-shaped portions 323, and each arc-shaped portion 323 is connected to the side wall of the hollow stirring shaft 31 to fix the stirring blade 32, enhance the structural strength of the stirring blade 32, and at the same time ensure the smooth flow of the coolant within the stirring blade 32.
[0028] As Figure 3 shown, multiple sets of stirring blades 32 are provided, and each set of stirring blades 32 is circumferentially connected to the side wall of the hollow stirring shaft 31 at intervals to improve the stirring efficiency and cooling effect, and ensure the uniform mixing and effective cooling of the polyacrylamide raw material within the reaction tank 1.
[0029] As Figure 1 shown, both the first coolant inlet 21 and the first coolant outlet 22 are located outside the reaction tank 1, facilitating the access and discharge of the coolant. 360-degree rotary joints 13 are provided on both the first coolant inlet 21 and the first coolant outlet 22, facilitating the connection to the external coolant circulation system, and at the same time ensuring that the circulation of the coolant is not affected by the rotation of the stirring shaft during the stirring process.
[0030] As Figure 3 shown, a driving gear 313 is provided on the hollow stirring shaft 31, and the hollow stirring shaft 31 is driven to rotate through the driving gear 313 to mix the polyacrylamide raw material in the reaction tank 1. The driving gear 313 can be connected to an external power source (such as a motor) to realize the automatic rotation of the stirring shaft, improving the production efficiency and operation convenience.
[0031] In summary, the polyacrylamide polymerization device of the present utility model effectively solves the problem of excessive temperature during the polymerization process through the dual cooling design of the external heat dissipation component and the internal heat dissipation component, ensuring the product quality. At the same time, by optimizing the design of the stirring blade and providing multiple sets of stirring blades, the stirring efficiency and cooling effect are improved, which is applicable to large-scale polyacrylamide emulsion polymerization production.
[0032] Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model fall within the scope of protection of the present utility model.
Claims
1. A polyacrylamide polymerization device, characterized in that: It includes a reaction tank body, an external heat dissipation component and an internal heat dissipation component. A feed inlet is arranged at the top of the reaction tank body, and a discharge outlet is arranged at the bottom. The external heat dissipation component includes a first coolant inlet and a first coolant outlet respectively arranged on the outer wall of the reaction tank body, and a cooling cavity arranged inside the reaction tank body. The first coolant inlet and the first coolant outlet are both communicated with the cooling cavity. The internal heat dissipation component includes a hollow stirring shaft and stirring blades. The hollow stirring shaft is rotatably arranged on the reaction tank body. Both ends of the hollow stirring shaft are respectively provided with a second coolant inlet and a second coolant outlet. Stirring blades are connected to the side wall of the hollow stirring shaft. Among them, the stirring blades have a third coolant inlet and a third coolant outlet. The coolant sequentially passes through the second coolant inlet, the third coolant inlet, the third coolant outlet and then is output through the second coolant outlet to cool the polyacrylamide raw material in the reaction tank body.
2. The polyacrylamide polymerization apparatus according to claim 1, wherein: The stirring blades are arranged in a serpentine bend and are hollow. The two ends of the stirring blades are arranged at intervals and are both communicated with the side wall of the hollow stirring shaft. The third coolant inlet is located at one end of the stirring blade, and the third coolant outlet is located at the other end of the stirring blade.
3. The polyacrylamide polymerization device according to claim 2, wherein: The stirring blades are provided with a plurality of arc-shaped parts, and each of the arc-shaped parts is connected to the side wall of the hollow stirring shaft to fix the stirring blades.
4. The polyacrylamide polymerization device according to claim 3, wherein: Multiple groups of the stirring blades are provided, and each group of the stirring blades is connected to the side wall of the hollow stirring shaft at intervals in the circumferential direction.
5. The polyacrylamide polymerization apparatus according to any one of claims 1-4, characterized in that: Both the first coolant inlet and the first coolant outlet are located outside the tank body, and 360-degree rotary joints are arranged on both the first coolant inlet and the first coolant outlet.
6. The polyacrylamide polymerization device according to claim 5, wherein: A driving gear is arranged on the hollow stirring shaft, and the hollow stirring shaft is driven to rotate through the driving gear to mix the polyacrylamide raw material in the tank body.