A copolymer roughing vacuum reactor

Abstract

The utility model discloses a kind of copolymer rough processing vacuum reaction pools in the field of vacuum reaction equipment, including reaction pool shell body.The vertical stirring motor is equipped in the top of reaction pool shell body, and the output shaft end of stirring motor is coaxially fixed with stirring shaft.Stirring shaft is equipped with stirring assembly and side wall scraping assembly.Stirring assembly includes first stirring vane, second stirring vane, first stirring vane is fixed on the upper end of stirring shaft, first stirring vane end is fixed with vertical rod, mounting hole is opened in vertical rod, connecting rod is slidably inserted in mounting hole, and the end of connecting rod is fixed with side wall scraping assembly.Side wall scraping assembly includes scraper, and the side of scraper towards reaction pool shell body side wall is spaced apart with protruding block and bristle, and protruding block is hemispherical.The utility model improves stirring effect, effectively removes inner wall adherend by side wall scraping assembly, reduces cleaning cost, and prolongs equipment life.

Description

Technical Field

[0001] This utility model relates to the field of vacuum reaction equipment, and in particular to a vacuum reaction tank for rough processing of copolymers. Background Technology

[0002] In the rough processing of copolymers, existing reaction tanks present several technical challenges that urgently need to be addressed. Firstly, insufficient agitation leads to inadequate copolymer mixing, affecting reaction efficiency and product quality. Common agitators often employ a single-blade structure, which cannot effectively accommodate material mixing at different levels and locations. Secondly, scaling easily forms on the inner walls of the reaction tank. During the reaction, copolymers readily adhere to these walls, and the resulting scale is difficult to clean. This not only reduces the tank's volumetric efficiency but can also lead to localized overheating, equipment corrosion, and other problems, impacting equipment lifespan and production efficiency, and increasing maintenance and production costs. Utility Model Content

[0003] The main objective of this invention is to provide a vacuum reaction chamber for the rough processing of copolymers, which addresses the problems mentioned in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A vacuum reaction tank for rough processing of copolymers includes a reaction tank shell, which is a vertical cylindrical structure with a conical bottom. A vertical stirring motor is centrally located at the top of the reaction tank shell. The output shaft of the stirring motor rotates downwards and enters the reaction tank shell, with a stirring shaft coaxially fixed to its end. The stirring shaft is equipped with a stirring assembly and a sidewall scraping assembly. The stirring assembly includes a first stirring blade and a second stirring blade. The first stirring blade is fixed to the upper end of the stirring shaft, and a vertical rod is fixed to its end. A mounting hole is provided on the vertical rod, into which a connecting rod is slidably inserted. The end of the connecting rod is fixed to the sidewall scraping assembly. The sidewall scraping assembly includes a scraper, with protrusions and bristles spaced apart on the side of the scraper facing the sidewall of the reaction tank shell. The protrusions are hemispherical.

[0006] Furthermore, a compression spring is installed on the connecting rod between the vertical rod and the scraper.

[0007] Furthermore, the first stirring blade is a long strip-shaped blade, and the second stirring blade is a spiral blade, with the second stirring blade located at the lower end of the stirring shaft.

[0008] Furthermore, a feed pipe and a vacuum pump are connected to the top of the reaction tank shell, and a sealing cap is provided at the inlet of the feed pipe.

[0009] Furthermore, the scraper is a polytetrafluoroethylene scraper.

[0010] Furthermore, a discharge pipe is connected to the bottom of the reaction tank shell, and a discharge valve is installed on the discharge pipe.

[0011] This invention also includes other components that enable the vacuum reaction chamber for the rough processing of the copolymer to function properly. These devices or components all employ conventional techniques in the art. Furthermore, devices and components not specifically defined in this invention all employ conventional techniques in the art, such as the vacuum pump and stirring motor mentioned in this application. In specific implementation, appropriate equipment or component models can be selected according to the specific working scenario.

[0012] The working principle of this invention is as follows: During the rough processing of the copolymer, the raw material is added to the reaction tank shell through the feed pipe. The stirring motor is turned on, and the stirring motor drives the stirring shaft to rotate, thereby driving the stirring assembly and the side wall scraping assembly to work. The first stirring blade and the second stirring blade use different stirring methods to fully mix the raw material and achieve uniform stirring.

[0013] Simultaneously, the scraper of the sidewall scraping assembly rotates close to the inner wall of the reaction tank shell under centrifugal force. The protrusions and bristles on the scraper scrape the inner wall, preventing the copolymer from scaling. A compression spring installed on the connecting rod between the vertical rod and the scraper provides cushioning during the scraping process, adapting to the shape of the reaction tank shell and the condition of its inner wall. The scraper is made of polytetrafluoroethylene (PTFE), which has good wear resistance and corrosion resistance, extending its service life. After the reaction is complete, the discharge valve is opened, and the product is discharged through the discharge pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. Improved mixing effect: The first and second mixing blades work together to fully mix the raw materials, improve the uniformity of mixing, and ensure the reaction effect.

[0016] 2. Prevents internal scaling and reduces maintenance costs: The side wall scraping component effectively removes deposits from the internal wall, reducing cleaning costs, extending equipment life, and maintaining a stable reaction environment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 for Figure 1 Enlarged view of section A.

[0019] In the diagram: 1. Reaction tank shell; 2. Stirring motor; 3. Stirring shaft; 4. First stirring blade; 5. Vertical rod; 6. Connecting rod; 7. Scraper; 8. Second stirring blade; 9. Discharge pipe; 10. Discharge valve; 11. Inlet pipe; 12. Sealing cover; 13. Vacuum pump; 14. Mounting hole; 15. Compression spring; 16. Protrusion; 17. Brush bristles. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] Example:

[0022] like Figures 1-2 As shown, a copolymer roughing vacuum reaction tank includes a reaction tank shell 1, which is a vertical cylindrical structure with a conical bottom. A vertical stirring motor 2 is centrally located at the top of the reaction tank shell 1. The output shaft of the stirring motor 2 rotates downwards and enters the reaction tank shell 1, with a stirring shaft 3 coaxially fixed to its end. The stirring shaft 3 is equipped with a stirring assembly and a sidewall scraping assembly. The stirring assembly includes a first stirring blade 4 and a second stirring blade 8. The first stirring blade 4 is fixed to the upper end of the stirring shaft 3, and a vertical rod 5 is fixed to its end. A mounting hole 14 is provided on the vertical rod 5, and a connecting rod 6 is slidably inserted into the mounting hole 14. The end of the connecting rod 6 is fixed to the sidewall scraping assembly. The sidewall scraping assembly includes a scraper 7, with protrusions 16 and bristles 17 spaced apart on the side of the scraper 7 facing the sidewall of the reaction tank shell 1. The protrusions 16 are hemispherical.

[0023] Specifically, the scraper 7 is a polytetrafluoroethylene scraper. The first stirring blade 4 is a long strip blade, and the second stirring blade 8 is a spiral blade, which is located at the lower end of the stirring shaft 3.

[0024] Additionally, a compression spring 15 is installed on the connecting rod 6 between the vertical rod 5 and the scraper 7. The top of the reaction tank shell 1 is connected to a feed pipe 11 and a vacuum pump 13, and a sealing cap 12 is provided at the inlet of the feed pipe 11. The bottom of the reaction tank shell 1 is connected to a discharge pipe 9, and a discharge valve 10 is provided on the discharge pipe 9.

[0025] The working principle of this invention, a vacuum reaction tank for rough processing of copolymers, is as follows: During the rough processing of copolymers, the raw materials are added to the reaction tank shell 1 through the feed pipe 11. The stirring motor 2 is turned on, and the stirring motor 2 drives the stirring shaft 3 to rotate, thereby driving the stirring assembly and the side wall scraping assembly to work. The first stirring blade 4 and the second stirring blade 8 use different stirring methods to fully mix the raw materials and achieve uniform stirring.

[0026] Simultaneously, the scraper 7 of the side wall scraping assembly rotates tightly against the inner wall of the reaction tank shell 1 under centrifugal force. The protrusions 16 and bristles 17 on the scraper 7 scrape the inner wall to prevent the copolymer from scaling. The compression spring 15 installed on the connecting rod 6 between the vertical rod 5 and the scraper 7 provides a certain degree of cushioning during the scraping process, adapting to the shape and inner wall condition of the reaction tank shell 1. The scraper 7 is made of polytetrafluoroethylene, which has good wear resistance and corrosion resistance, extending its service life. After the reaction is completed, the discharge valve 10 is opened, and the product is discharged through the discharge pipe 9.

[0027] The above embodiments are merely descriptions of preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope of the present utility model.

Claims

1. A vacuum reaction tank for rough processing of copolymers, comprising a reaction tank shell (1), wherein the reaction tank shell (1) is a vertical cylindrical structure with a conical bottom design, characterized in that: The top of the reaction tank shell (1) is centrally located with a vertical stirring motor (2). The output shaft of the stirring motor (2) rotates downward and enters the reaction tank shell (1). The end of the output shaft is coaxially fixed to a stirring shaft (3). The stirring shaft (3) is provided with a stirring assembly and a side wall scraping assembly. The stirring assembly includes a first stirring blade (4) and a second stirring blade (8). The first stirring blade (4) is fixed to the upper end of the stirring shaft (3). The end of the first stirring blade (4) is fixed to a vertical rod (5). The vertical rod (5) is provided with a mounting hole (14). A connecting rod (6) is slidably inserted into the mounting hole (14). The end of the connecting rod (6) is fixed to a side wall scraping assembly. The side wall scraping assembly includes a scraper (7). The scraper (7) is provided with protrusions (16) and bristles (17) at intervals on the side facing the side wall of the reaction tank shell (1). The protrusions (16) are hemispherical.

2. The copolymer roughing vacuum reaction tank according to claim 1, characterized in that: A compression spring (15) is installed on the connecting rod (6) between the vertical rod (5) and the scraper (7).

3. The copolymer roughing vacuum reaction tank according to claim 1, characterized in that: The first stirring blade (4) is a long strip blade, and the second stirring blade (8) is a spiral blade. The second stirring blade (8) is located at the lower end of the stirring shaft (3).

4. The copolymer roughing vacuum reaction tank according to claim 1, characterized in that: The top of the reaction tank shell (1) is connected to a feed pipe (11) and a vacuum pump (13), and the inlet of the feed pipe (11) is provided with a sealing cap (12).

5. The copolymer roughing vacuum reaction tank according to claim 1, characterized in that: The scraper (7) is a polytetrafluoroethylene scraper.

6. The copolymer roughing vacuum reaction tank according to claim 1, characterized in that: The bottom of the reaction tank shell (1) is connected to a discharge pipe (9), and a discharge valve (10) is provided on the discharge pipe (9).

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