Polymerizing kettle capable of efficiently stirring

Abstract

The utility model discloses a polymeric kettle capable of efficiently stirring, which relates to the technical field of polymeric kettles and comprises a polymeric kettle main body consisting of a kettle main body, a powder feed port, a liquid feed port and a discharge port, a uniform blanking and mixing component and a scraping component, the uniform discharging and mixing assembly is used for achieving uniform discharging of powder raw materials and uniform mixing of the powder raw materials and solution raw materials. The uniform discharging and mixing assembly comprises a conical discharging hopper, a connecting arm, a primary mixing platform, a suction barrel, a lower conveying spiral blade and an upper conveying spiral blade; the scraping assembly is used for scraping the inner wall of the conical discharging hopper. By arranging the uniform discharging and mixing assembly, uniform discharging of powder and primary uniform mixing of the powder and liquid raw materials can be achieved, powder caking can be effectively avoided, efficient mixing of the raw materials can be achieved, meanwhile, by arranging the scraping assembly, powder residues can be avoided, and sufficient discharging of the powder is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of polymerization kettles, in particular to a polymerization kettle capable of efficient stirring. Background Art

[0002] A polymerization kettle is a device used for polymerization reactions, widely used in the research and production of polymer chemistry and high-molecular materials. It generally consists of a kettle body, a kettle cover, a jacket, an agitator, a transmission device, a shaft seal device, and a support. Polymerization kettles are usually made of acid-, alkali-, and high-temperature-resistant stainless steel. They are corrosion-resistant and have high-temperature tolerance, making them suitable for a variety of polymerization reactions. Polymerization kettles can also be heated or cooled with steam or cold water to control the reaction temperature. Some polymerization kettles are also equipped with temperature control systems, which can achieve constant temperature heating and cooling.

[0003] During the polymerization reaction, if there is powder in the raw materials, if the powder is directly added to the solution raw materials in large quantities, it will cause the powder to agglomerate, and it will take a long time to complete the powder breaking up and mixing, which greatly affects the polymerization reaction efficiency. Based on this, a polymerization kettle capable of efficient stirring is provided. Utility Model Content

[0004] The purpose of the utility model is to provide a polymerization kettle capable of efficient stirring in order to solve the above-mentioned background problems.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a polymerization kettle capable of efficient stirring, comprising a polymerization kettle body consisting of a kettle body, a powder feed port, a liquid feed port, and a discharge port, wherein the powder feed port and the liquid feed port are fixed on the top of the kettle body body and are communicated with the inner cavity of the kettle body body, the discharge port is fixed at a position near the bottom of the outer side of the kettle body body and is communicated with the inner cavity of the kettle body body, a stirring assembly is arranged on the top and inside of the kettle body body, and the stirring assembly includes a driving motor, a stirring shaft, and a stirring rod; the driving motor is installed in the middle of the top of the kettle body body, the stirring shaft is connected to the bottom of the output end of the driving motor and passes through the interior of the kettle body body, the stirring rod is fixed to the bottom outside the stirring shaft, and the stirring rod is driven by the driving motor to run in a circular motion to realize the raw material stirring operation; a uniform feeding and mixing assembly is arranged between the interior of the kettle body body and the outer side of the stirring shaft, and the uniform feeding and mixing assembly is used to realize uniform feeding of powder raw materials and uniform mixing of powder raw materials and solution raw materials.

[0006] As a further solution of the present invention: the uniform feeding and mixing assembly includes a conical lower hopper, a connecting arm, a primary mixing platform, a suction cylinder, a lower conveying spiral blade, and an upper conveying spiral blade; the conical lower hopper is fixed to the top of the inner wall of the kettle body and is located below the powder feeding port, the connecting arms are provided in plurality, and the plurality of connecting arms are circumferentially distributed and fixed to the outside of the conical lower hopper, the primary mixing platform is fixed to the inner side of the bottom ends of the plurality of connecting arms, the lower conveying spiral blade is fixed to the bottom of the primary mixing platform, and the vertical center line of the lower conveying spiral blade and the conical lower hopper is vertical to the stirring shaft. The center lines coincide; the lower conveying spiral blades and the upper conveying spiral blades are vertically distributed and fixed on the outside of the stirring shaft, and the lower conveying spiral blades are distributed on the inside of the conical lower hopper and extend to the bottom of the conical lower hopper, and the upper conveying spiral blades are distributed on the inside of the suction cylinder and extend and protrude to the upper and lower ends of the suction cylinder; the stirring shaft drives the lower conveying spiral blades and the upper conveying spiral blades to rotate, and the rotating lower conveying spiral blades are used to drive the powder inside the conical lower hopper to be discharged evenly, and the rotating upper conveying spiral blades cooperate with the suction cylinder to transport the liquid raw materials at the bottom of the kettle body upward and contact and mix with the powder.

[0007] As a further solution of the present invention: the spiral directions of the lower conveying spiral blade and the upper conveying spiral blade are opposite, the outer diameters of the lower conveying spiral blade and the upper conveying spiral blade respectively match the inner diameter of the cylinder at the bottom end of the conical lower hopper and the inner diameter of the suction cylinder, and the outer diameter of the upper conveying spiral blade is larger than the outer diameter of the lower conveying spiral blade.

[0008] As a further solution of the present invention: an arc-shaped scraper is fixedly connected to the outside of the stirring shaft between the conical lower hopper and the suction cylinder. The bottom end of the arc-shaped scraper is attached to the top of the primary mixing platform, and the rotating arc-shaped scraper is used to scrape the wall of the top of the primary mixing platform.

[0009] As a further solution of the present invention: a scraper assembly is also provided on the inner side of the conical lower hopper inside the kettle body, and the scraper assembly is used to scrape the inner wall of the conical lower hopper; the scraper assembly includes a fixed gear, a transmission gear, a driven gear ring, and a T-shaped scraper; the fixed gear is fixed to the outside of the stirring shaft near the top of the inner wall of the kettle body, and the transmission gear and the driven gear ring are rotatably connected to the top of the inner wall of the kettle body, the transmission gear is distributed between the driven gear ring and the fixed gear, and the transmission gear is synchronously meshed with the fixed gear and the driven gear ring, the T-shaped scraper is fixed to the bottom outside the driven gear ring and the bottom scraper of the T-shaped scraper is in contact with the inner wall of the conical lower hopper; when the stirring shaft rotates, it drives the T-shaped scraper to rotate at a low speed, which is used to realize the scraping operation of the inner wall of the conical lower hopper.

[0010] As a further solution of the present invention: the powder feed port is close to the middle of the kettle body, the liquid feed port is close to the outer edge of the kettle body, and the conical lower hopper and the liquid feed port are staggered.

[0011] As a further solution of the present invention: there are multiple stirring rods, and the multiple stirring rods are evenly distributed in a circle with the stirring shaft as the center, and a single stirring rod includes multiple vertical stirring rods, and the two vertical stirring rods distributed on the outermost and innermost sides are respectively fitted with the inner wall of the kettle body and the outer wall of the suction cylinder.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] By setting up a uniform feeding and mixing component, uniform feeding of powder and preliminary uniform mixing of powder and liquid raw materials can be achieved, which can effectively avoid powder agglomeration and achieve efficient mixing of raw materials. At the same time, by setting up a scraping component, powder residue can be avoided and sufficient feeding of powder can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the kettle body of the present utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the uniform feeding and mixing component of the present utility model;

[0017] Figure 4 For the utility model Figure 3 A magnified view of the position in the middle;

[0018] Figure 5 This is a schematic diagram of the disassembled structure of the stirring rod, stirring shaft, driving motor and kettle body of the present invention;

[0019] Figure 6 This is a schematic diagram of the split structure of the driven gear ring and the kettle body of the present invention.

[0020] In the figure: 1. Polymerization kettle body; 101. Kettle body; 102. Powder feed port; 103. Liquid feed port; 104. Discharge port; 2. Stirring assembly; 201. Drive motor; 202. Stirring shaft; 203. Stirring rod; 3. Uniform feeding and mixing assembly; 301. Conical feeding hopper; 302. Connecting arm; 303. Primary mixing platform; 304. Suction cylinder; 305. Lower conveying spiral blade; 306. Arc scraper; 307. Upper conveying spiral blade; 4. Scraper assembly; 401. Fixed gear; 402. Transmission gear; 403. Driven gear ring; 404. T-type scraper. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1 to 6 In an embodiment of the present invention, a polymerization kettle capable of efficient stirring includes a polymerization kettle main body 1 consisting of a kettle main body 101, a powder feed port 102, a liquid feed port 103, and a discharge port 104. The powder feed port 102 and the liquid feed port 103 are fixed on the top of the kettle main body 101 and are communicated with the inner cavity of the kettle main body 101. The discharge port 104 is fixed on the outer side of the kettle main body 101 near the bottom and is communicated with the inner cavity of the kettle main body 101. A stirring component 2 is provided on the top and inside of the kettle main body 101. The stirring component 2 includes a driving motor 201, a stirring shaft 202, and a stirring rod 203.

[0023] The driving motor 201 is installed in the middle of the top of the kettle body 101, the stirring shaft 202 is connected to the bottom of the output end of the driving motor 201 and passes through the inside of the kettle body 101, and the stirring rod 203 is fixed to the bottom outside the stirring shaft 202. The driving motor 201 drives the stirring rod 203 to run in a circular motion to realize the raw material stirring operation.

[0024] A uniform feeding and mixing assembly 3 is provided between the interior of the kettle body 101 and the outside of the stirring shaft 202 . The uniform feeding and mixing assembly 3 is used to achieve uniform feeding of the powder raw materials and uniform mixing of the powder raw materials and the solution raw materials.

[0025] The uniform feeding and mixing assembly 3 includes a conical feeding hopper 301 , a connecting arm 302 , a primary mixing platform 303 , a suction cylinder 304 , a lower conveying spiral blade 305 , and an upper conveying spiral blade 307 .

[0026] The conical lower hopper 301 is fixed to the top of the inner wall of the kettle body 101 and is located below the powder feed port 102. A plurality of connecting arms 302 are provided, and the plurality of connecting arms 302 are circumferentially distributed and fixed to the outside of the conical lower hopper 301. The primary mixing platform 303 is fixed to the inner side of the bottom ends of the plurality of connecting arms 302. The lower conveying spiral blade 305 is fixed to the bottom of the primary mixing platform 303, and the vertical center line of the lower conveying spiral blade 305 and the conical lower hopper 301 coincides with the vertical center line of the stirring shaft 202.

[0027] The lower conveying spiral blade 305 and the upper conveying spiral blade 307 are vertically distributed and fixed on the outside of the stirring shaft 202, and the lower conveying spiral blade 305 is distributed on the inside of the conical lower hopper 301 and extends to the bottom of the conical lower hopper 301, and the upper conveying spiral blade 307 is distributed on the inside of the suction cylinder 304 and extends to the upper and lower ends of the suction cylinder 304.

[0028] The stirring shaft 202 drives the lower conveying spiral blade 305 and the upper conveying spiral blade 307 to rotate. The rotating lower conveying spiral blade 305 is used to drive the powder inside the conical discharge hopper 301 to be discharged evenly. The rotating upper conveying spiral blade 307 cooperates with the suction cylinder 304 to transport the liquid raw material at the bottom of the kettle body 101 upward and contact and mix with the powder.

[0029] An arc-shaped scraper 306 is fixedly connected to the outside of the stirring shaft 202 between the conical lower hopper 301 and the suction cylinder 304. The bottom end of the arc-shaped scraper 306 is attached to the top of the primary mixing platform 303. The rotating arc-shaped scraper 306 is used to scrape the top of the primary mixing platform 303.

[0030] In this embodiment, when the polymerization kettle is used, the operating steps are as follows:

[0031] The liquid raw material is added into the interior of the kettle body 101 through the liquid feed port 103, and then the powder is transported to the powder feed port 102, and the powder falls into the conical lower hopper 301 through the powder feed port 102. At the same time, the drive motor 201 is started to run, and the drive motor 201 drives the lower conveying spiral blade 305, the arc scraper 306, the upper conveying spiral blade 307, and the stirring rod 203 to rotate synchronously through the stirring shaft 202.

[0032] Among them, the rotating lower conveying spiral blade 305 can drive the powder inside the conical discharge hopper 301 to be conveyed downward, thereby achieving uniform discharge of the powder, and the powder can fall onto the primary mixing platform 303. At the same time, the rotating upper conveying spiral blade 307 cooperates with the suction cylinder 304 to form a suction effect on the liquid raw material at the bottom of the kettle body 101, and can convey the liquid raw material upward to the primary mixing platform 303. At this time, the liquid raw material and the evenly falling powder are initially contacted and mixed, and then flow downward from the edge of the primary mixing platform 303 (it should be noted that: the liquid level inside the kettle body 101 is lower than the horizontal height of the primary mixing platform 303. Therefore, the primary mixed liquid flowing down from the primary mixing platform 303 and the liquid raw material merge to achieve a secondary mixing effect).

[0033] The rotating curved scraper 306 can scrape the surface of the primary mixing platform 303 to prevent powder residue on the surface of the primary mixing platform 303, while the rotating stirring rod 203 stirs and mixes the mixed liquid as a whole. Through the cooperation of the above multiple parts, the powder can be effectively prevented from agglomerating and an efficient stirring operation can be achieved.

[0034] Please focus on Figures 2 to 6 , the spiral direction of the lower conveying spiral blade 305 and the upper conveying spiral blade 307 is in an opposite state, the outer diameter of the lower conveying spiral blade 305 and the upper conveying spiral blade 307 respectively matches the inner diameter of the conical hopper 301 bottom cylinder and the inner diameter of the suction cylinder 304, and the outer diameter of the upper conveying spiral blade 307 is greater than that of the lower conveying spiral blade 305.

[0035] In this embodiment: by the outer diameter of the upper conveying spiral blade 307 being greater than that of the lower conveying spiral blade 305, the upward conveying liquid raw material flow is greater than the powder discharging flow, so as to better form flushing and initial mixing of the powder.

[0036] Please focus on Figures 1 to 4 , the kettle body 101 inside is provided with a scraping assembly 4 inside the conical hopper 301, which is used for wall scraping operation on the inner wall of the conical hopper 301.

[0037] The scraping assembly 4 comprises a fixed gear 401, a transmission gear 402, a driven gear ring 403 and a T-shaped scraper 404.

[0038] The fixed gear 401 is fixed to the outside of the stirring shaft 202 close to the top of the inner wall of the kettle body 101, the transmission gear 402 and the driven gear ring 403 are rotatably connected to the top of the inner wall of the kettle body 101, the transmission gear 402 is distributed between the driven gear ring 403 and the fixed gear 401, and the transmission gear 402 is synchronously engaged with the fixed gear 401 and the driven gear ring 403, and the T-shaped scraper 404 is fixed to the bottom of the outside of the driven gear ring 403, and the bottom of the T-shaped scraper 404 is scraped against the inner wall of the conical hopper 301.

[0039] When the stirring shaft 202 rotates, the T-shaped scraper 404 rotates at low speed, which is used for realizing the wall scraping operation on the inner wall of the conical hopper 301.

[0040] In this embodiment: when the driving motor 201 drives the stirring shaft 202 to rotate, the stirring shaft 202 drives the transmission gear 402 to rotate through the fixed gear 401, the transmission gear 402 drives the driven gear ring 403 to rotate, the driven gear ring 403 drives the T-shaped scraper 404 to rotate at low speed, and the rotating T-shaped scraper 404 forms wall scraping on the inner wall of the conical hopper 301, thereby avoiding the phenomenon of powder residue on the inner wall of the conical hopper 301.

[0041] Please focus on Figures 1 to 6 , the powder feeding port 102 is close to the middle part of the kettle body 101, the liquid feeding port 103 is close to the outer edge of the kettle body 101, and the conical hopper 301 is distributed in a staggered manner with the liquid feeding port 103.

[0042] In this embodiment: this structure can prevent the feeding of liquid raw materials and the feeding of powder materials from interfering with each other.

[0043] Please refer to Figures 1 to 4 There are multiple stirring rods 203, and the multiple stirring rods 203 are evenly distributed in a circle with the stirring shaft 202 as the center, and a single stirring rod 203 includes multiple vertical stirring rods, and the two vertical stirring rods distributed on the outermost and innermost sides are respectively fitted with the inner wall of the kettle body 101 and the outer wall of the suction cylinder 304.

[0044] In this embodiment, this structure allows the stirring rod 203 to perform circular motion, stirring and mixing the raw materials while scraping the inner wall of the kettle body 101 and the inner wall of the suction cylinder 304 .

[0045] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A polymerization kettle capable of high-efficiency stirring, comprising a polymerization kettle body (1) consisting of a kettle body (101), a powder feed port (102), a liquid feed port (103), and a discharge port (104), wherein the powder feed port (102) and the liquid feed port (103) are fixed to the top of the kettle body (101) and are in communication with the inner cavity of the kettle body (101), and the discharge port (104) is fixed to the outer side of the kettle body (101) near the bottom and is in communication with the inner cavity of the kettle body (101), characterized in that: A stirring assembly (2) is provided at the top and inside of the kettle body (101), and the stirring assembly (2) comprises a driving motor (201), a stirring shaft (202), and a stirring rod (203); the driving motor (201) is installed at the middle of the top of the kettle body (101), the stirring shaft (202) is connected to the bottom of the output end of the driving motor (201) and passes through the inside of the kettle body (101), and the stirring rod (203) is fixed to the bottom outside of the stirring shaft (202); a uniform feeding and mixing assembly (3) is provided between the inside of the kettle body (101) and the outside of the stirring shaft (202).

2. A highly efficient stirring polymerization kettle according to claim 1, characterized in that: The uniform feeding and mixing assembly (3) comprises a conical feeding hopper (301), a connecting arm (302), a primary mixing platform (303), a suction cylinder (304), a lower conveying spiral blade (305), and an upper conveying spiral blade (307); The conical lower hopper (301) is fixed to the top of the inner wall of the kettle body (101) and is located below the powder feed port (102). A plurality of connecting arms (302) are provided, and the plurality of connecting arms (302) are circumferentially distributed and fixed to the outside of the conical lower hopper (301). The primary mixing platform (303) is fixed to the inner side of the bottom ends of the plurality of connecting arms (302). The lower conveying spiral blade (305) is fixed to the bottom of the primary mixing platform (303), and the vertical center line of the lower conveying spiral blade (305) and the conical lower hopper (301) coincides with the vertical center line of the stirring shaft (202). The lower conveying spiral blade (305) and the upper conveying spiral blade (307) are vertically distributed and fixed on the outside of the stirring shaft (202), and the lower conveying spiral blade (305) is distributed on the inside of the conical lower hopper (301) and extends to the bottom of the conical lower hopper (301), and the upper conveying spiral blade (307) is distributed on the inside of the suction cylinder (304) and extends and protrudes to the upper and lower ends of the suction cylinder (304).

3. A highly efficient stirring polymerization kettle according to claim 2, characterized in that: The spiral directions of the lower conveying spiral blade (305) and the upper conveying spiral blade (307) are opposite to each other. The outer diameters of the lower conveying spiral blade (305) and the upper conveying spiral blade (307) respectively match the inner diameter of the cylinder at the bottom end of the conical lower hopper (301) and the inner diameter of the suction cylinder (304). The outer diameter of the upper conveying spiral blade (307) is larger than the outer diameter of the lower conveying spiral blade (305).

4. A polymerizer capable of efficient stirring according to claim 3, characterized in that: An arc-shaped scraper (306) is fixedly connected to the outside of the stirring shaft (202) between the conical lower hopper (301) and the suction cylinder (304), and the bottom end of the arc-shaped scraper (306) is attached to the top of the primary mixing platform (303).

5. A highly efficient stirring polymerization kettle according to claim 2, characterized in that: A scraper assembly (4) is further provided inside the conical lower hopper (301) inside the kettle body (101), and the scraper assembly (4) comprises a fixed gear (401), a transmission gear (402), a driven gear ring (403), and a T-shaped scraper (404); The fixed gear (401) is fixed to the outside of the stirring shaft (202) near the top of the inner wall of the kettle body (101); the transmission gear (402) and the driven gear ring (403) are rotatably connected to the top of the inner wall of the kettle body (101); the transmission gear (402) is distributed between the driven gear ring (403) and the fixed gear (401); and the transmission gear (402) is synchronously meshed with the fixed gear (401) and the driven gear ring (403); the T-shaped scraper (404) is fixed to the bottom outside of the driven gear ring (403), and the bottom scraping wall of the T-shaped scraper (404) is in contact with the inner wall of the conical lower hopper (301).

6. A highly efficient stirring polymerization kettle according to claim 2, characterized in that: The powder feed port (102) is close to the middle of the kettle body (101), the liquid feed port (103) is close to the outer edge of the kettle body (101), and the conical lower hopper (301) and the liquid feed port (103) are staggered.

7. A polymerizer capable of efficient stirring according to claim 2, characterized in that: There are multiple stirring rods (203), and the multiple stirring rods (203) are evenly distributed in a circle with the stirring shaft (202) as the center. A single stirring rod (203) includes multiple vertical stirring rods, and the two vertical stirring rods distributed on the outermost and innermost sides are respectively in contact with the inner wall of the kettle body (101) and the outer wall of the suction cylinder (304).

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