Batching kettle for producing polyacrylamide thickening agent
By introducing a cylinder-driven rotating shaft and a threaded scraper into the mixing tank, the problem of uneven mixing at the bottom was solved, achieving uniform mixing of the thickener and cleaning of the inner wall, thus improving production efficiency and product quality.
Patent Information
- Application Number
- CN202423241180.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-27
AI Technical Summary
In existing mixing tanks, uneven stirring of polyacrylamide thickener, especially at the bottom, results in thickener residue remaining on the inner wall, affecting production efficiency and quality.
A batching vessel comprising a tank body, a drive assembly, and a stirring assembly was designed. A cylinder drives a rotating shaft to move a connecting block along a threaded groove, thereby rotating the shaft and causing the stirring blades to push downwards to the bottom. At the same time, a threaded scraper scrapes the inner wall to ensure uniform mixing.
It effectively solves the problem of blind spots in bottom stirring, achieves uniform mixing of thickener and cleaning of the inner wall, avoids residue, and improves production efficiency and product quality.
Smart Images

Figure CN223641756U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polyacrylamide thickener production technology, and in particular to a batching tank for producing polyacrylamide thickener. Background Technology
[0002] The mixing tank used in the production of polyacrylamide thickener is a specialized industrial device for polymerization reactions. It is typically made of stainless steel and possesses high-temperature and corrosion-resistant properties. This tank contains an internal stirrer for uniformly mixing various raw materials during the polymerization process.
[0003] In some existing batching tanks, the polyacrylamide thickener needs to be stirred and blended during actual use. However, since the PAM molecular chain is a random coil in the solution, it is easy for them to entangle and cross-link. Therefore, when dissolving and diluting PAM, it is necessary to reduce the stirring time and intensity to avoid molecular chain breakage and degradation, which would affect performance. However, in traditional batching tanks, the conical bottom is used for discharge, which means that the stirring blades cannot effectively and synchronously stir and mix the thickener at the bottom when stirring and mixing the polyacrylamide thickener.
[0004] Therefore, this utility model provides a batching kettle for the production of polyacrylamide thickener. Utility Model Content
[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a batching kettle for the production of polyacrylamide thickener.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a batching kettle for producing polyacrylamide thickener, comprising;
[0007] Tank assembly; the tank assembly includes an outer tank, a top cover is fixedly connected to the top of the outer tank, and an inner tank is fixedly connected to the bottom of the top cover;
[0008] A drive assembly; the drive assembly includes a mounting base fixedly connected to the top cover, a cylinder mounted on the top of the mounting base, a sealing shaft fixedly connected to the top of the tank assembly, a transmission column fixedly connected to the top of the sealing shaft, and a threaded groove opened inside the transmission column.
[0009] A stirring assembly; the stirring assembly includes a rotating shaft rotatably connected to a cylinder, a connecting block fixedly connected to the outer side of the rotating shaft, and a stirring blade fixedly connected to the bottom outer side of the rotating shaft.
[0010] In a preferred embodiment, a connecting rod is fixedly connected to the outer side of the rotating shaft, and a threaded scraper is fixedly connected to the outer side of the connecting rod.
[0011] In a preferred embodiment, a discharge pipe is fixedly connected to the bottom of the inner wall of the outer tank and the inner tank, and a feed pipe is fixedly connected to the outer side of the outer tank and the inner tank.
[0012] In a preferred embodiment, the outer side of the threaded scraper is movably connected to the inner wall of the inner tank.
[0013] In a preferred embodiment, the outer side of the rotating shaft is movably connected to the inside of the sealing shaft.
[0014] In a preferred embodiment, the drive end of the cylinder is movably connected to the inner wall of the transmission column.
[0015] In a preferred embodiment, the outer side of the connecting block is slidably connected to the threaded groove.
[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0017] This invention utilizes a cylinder-driven shaft that moves downwards, simultaneously causing a connecting block to slide along a threaded groove on a transmission column. This rotation of the shaft, driven by the cylinder, generates a downward pushing force on the stirring blades connected to the shaft, effectively stirring the polyacrylamide thickener at the bottom of the inner tank. Furthermore, a threaded scraper connected to the shaft via a connecting rod causes the scraper to scrape the inner wall of the tank during rotation, achieving both cleaning of the inner wall and uniform stirring of the thickener. Finally, the uniformly stirred polyacrylamide thickener is discharged through a discharge pipe. This design not only ensures uniform mixing of the thickener within the inner tank but also effectively stirs the thickener at the bottom, avoiding the stirring blind spots of traditional batching kettles with their conical bottoms. Moreover, the threaded scraper's real-time scraping of the inner tank's wall further enhances the uniform stirring, preventing thickener residue from remaining on the inner wall and effectively solving the problem of insufficient stirring at the bottom in traditional batching kettles. Attached Figure Description
[0018] Figure 1 A perspective view of a mixing tank for producing polyacrylamide thickener provided by this utility model;
[0019] Figure 2 A schematic diagram of the synchronous drive component structure of a batching kettle for producing polyacrylamide thickener provided by this utility model;
[0020] Figure 3 A schematic diagram of the stirring assembly structure of a batching tank for producing polyacrylamide thickener provided by this utility model;
[0021] Figure 4 This utility model provides a schematic diagram of the transmission column structure of a batching kettle for producing polyacrylamide thickener.
[0022] Legend:
[0023] 1. Tank assembly; 11. Outer tank; 12. Top cover; 13. Inner tank; 14. Discharge pipe; 15. Inlet pipe;
[0024] 2. Drive assembly; 21. Mounting base; 22. Cylinder; 23. Connecting block; 24. Sealing shaft; 25. Transmission column; 26. Threaded groove;
[0025] 3. Stirring assembly; 31. Rotating shaft; 32. Connecting rod; 33. Threaded scraper; 34. Stirring blade. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] like Figure 1 - Figure 2 As shown, this embodiment provides a technical solution: a mixing tank for producing polyacrylamide thickener, comprising;
[0028] Tank assembly 1; Tank assembly 1 includes an outer tank 11, an upper cover 12 is fixedly connected to the top of the outer tank 11, an inner tank 13 is fixedly connected to the bottom of the upper cover 12, a discharge pipe 14 is fixedly connected to the bottom of the inner walls of the outer tank 11 and the inner tank 13, and a feed pipe 15 is fixedly connected to the outer side of the outer tank 11 and the inner tank 13.
[0029] The outer tank 11 serves as the external container of the mixing tank, providing a robust outer shell to protect the internal structure. The top cover 12 is fixedly connected to the top of the outer tank 11 to seal the tank, preventing raw material leakage and external contamination, while also facilitating the operator's feeding and observation of the tank's internal conditions. The inner tank 13 is fixedly connected to the bottom of the top cover 12 and located inside the outer tank 11. It is used to directly store and process polyacrylamide raw materials. The presence of the inner tank 13 provides an additional protective layer, reduces heat loss, and improves production efficiency. The discharge pipe 14 is fixedly connected to the bottom of the inner walls of the outer tank 11 and the inner tank 13 to discharge the processed polyacrylamide raw materials from the mixing tank, facilitating subsequent processing or storage. The feed pipe 15 is fixedly connected to the outside of the outer tank 11 and the inner tank 13 to add polyacrylamide raw materials or other auxiliary materials to the mixing tank, serving as the main channel for raw materials to enter the tank.
[0030] like Figure 1 - Figure 4As shown, drive assembly 2; drive assembly 2 includes a mounting base 21 fixedly connected to the upper cover 12, a cylinder 22 mounted on the top of the mounting base 21, a sealing shaft 24 fixedly connected to the top of the tank assembly 1, a transmission column 25 fixedly connected to the top of the sealing shaft 24, the drive end of the cylinder 22 being movably connected to the inner wall of the transmission column 25, and a threaded groove 26 being provided inside the transmission column 25.
[0031] Mounting base 21 is fixedly connected to the upper cover 12, serving as the mounting base for cylinder 22 and providing a stable support platform for cylinder 22. Cylinder 22 is mounted on the top of mounting base 21 and generates linear motion through pneumatic drive to achieve stirring action inside the mixing tank. Sealing shaft 24 is fixedly connected to the top of tank assembly 1 and connected to transmission column 25, serving as a connection and sealing function to ensure that the cylinder 22 can maintain a sealing effect when driving rotating shaft 31, preventing leakage during transmission. The transmission column 25, through the threaded groove 26, enables the piston rod of cylinder 22 to drive the stirring assembly 3 to rotate during extension and retraction, achieving synchronous movement of rotation and extension.
[0032] like Figure 1 - Figure 3 As shown, the stirring assembly 3 includes a rotating shaft 31 rotatably connected to the cylinder 22, the outer side of the rotating shaft 31 being movably connected to the inside of the sealing shaft 24, a connecting block 23 being fixedly connected to the outer side of the rotating shaft 31, the outer side of the connecting block 23 being slidably connected to the threaded groove 26, a connecting rod 32 being fixedly connected to the outer side of the rotating shaft 31, a threaded scraper 33 being fixedly connected to the outer side of the connecting rod 32, the outer side of the threaded scraper 33 being movably connected to the inner wall of the inner tank 13, and a stirring blade 34 being fixedly connected to the bottom outer side of the rotating shaft 31.
[0033] The rotating shaft 31 is responsible for converting the linear motion generated by the cylinder 22 into a rotary thrust motion, thereby driving the entire stirring assembly 3 to work. The main function of the connecting block 23 is to effectively transmit the rotational motion of the rotating shaft 31 to the threaded scraper 33, and to allow the threaded scraper 33 to slide smoothly on the inner wall of the inner tank 13. This achieves both the stirring function and the task of scraping the wall. The connecting rod 32 connects the rotating shaft 31 and the threaded scraper 33 to ensure the smooth transmission of power. During the stirring process, the threaded scraper 33 can scrape off the material on the wall of the inner tank 13, effectively preventing the material from adhering and accumulating, while ensuring the uniformity of the stirring process. The stirring blade 34 directly participates in the stirring of the material, ensuring that the material can be fully mixed. When the rotating shaft 31 rotates under the precision transmission design of the connecting block 23 and the threaded groove 26, it will produce an upward or downward movement, further enhancing the stirring effect.
[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A mixing tank for producing polyacrylamide thickener, characterized in that, include; Tank assembly (1); the tank assembly (1) includes an outer tank (11), the top of the outer tank (11) is fixedly connected to a top cover (12), and the bottom of the top cover (12) is fixedly connected to an inner tank (13). Drive assembly (2); The drive assembly (2) includes a mounting base (21) fixedly connected to the top cover (12), a cylinder (22) is mounted on the top of the mounting base (21), a sealing shaft (24) is fixedly connected to the top of the tank assembly (1), a transmission column (25) is fixedly connected to the top of the sealing shaft (24), and a threaded groove (26) is opened inside the transmission column (25). A stirring assembly (3); the stirring assembly (3) includes a rotating shaft (31) rotatably connected to a cylinder (22), a connecting block (23) fixedly connected to the outer side of the rotating shaft (31), and a stirring blade (34) fixedly connected to the bottom outer side of the rotating shaft (31).
2. The batching kettle for producing polyacrylamide thickener according to claim 1, characterized in that: A connecting rod (32) is fixedly connected to the outside of the rotating shaft (31), and a threaded scraper (33) is fixedly connected to the outside of the connecting rod (32).
3. The batching kettle for producing polyacrylamide thickener according to claim 1, characterized in that: The outer tank (11) and the inner tank (13) are fixedly connected to the bottom of the inner wall of the outer tank (14) and the inner tank (13) are fixedly connected to the outer side of the outer tank (11) and the inner tank (13) of the inner side of the inner side of the outer tank (15).
4. The batching kettle for producing polyacrylamide thickener according to claim 2, characterized in that: The outer side of the threaded scraper (33) is movably connected to the inner wall of the inner tank (13).
5. The mixing tank for producing polyacrylamide thickener according to claim 1, characterized in that: The outer side of the rotating shaft (31) is movably connected to the inside of the sealing shaft (24).
6. The mixing tank for producing polyacrylamide thickener according to claim 1, characterized in that: The drive end of the cylinder (22) is movably connected to the inner wall of the transmission column (25).
7. The batching kettle for producing polyacrylamide thickener according to claim 1, characterized in that: The outer side of the connecting block (23) is slidably connected to the threaded groove (26).