Sufficient-reaction stirring kettle for producing SN272

Abstract

A stirring kettle for producing SN272 with sufficient reaction relates to a stirring kettle and is characterized in that a reaction tank is obliquely arranged, a rotating shaft A (12) arranged on a motor A (8) extends to the center of the spherical surface of a hemispherical bottom (21) along a through hole A (23) formed in the center of the spherical surface of a hemispherical cover (2), and a stirring paddle (5) is arranged at the lower end of the rotating shaft A (12); when the two arc-shaped scraping nets (3) are driven by the rotating shaft B (17) to rotate into the hemispherical cavity B (22), the outer arc surfaces of the two arc-shaped scraping nets (3) can be attached to the inner wall of the hemispherical bottom (21); the reaction tank is obliquely arranged, the leftmost side of the reaction tank is provided with the motor B for driving the arc-shaped scraping nets to vertically rotate, and the two arc-shaped scraping nets can scrape the lowest point of the hemispherical cavity B when rotating, so that solid reaction raw materials at the bottom of the hemispherical cavity B can be effectively raised; the purposes of accelerating the reaction speed and avoiding slight hardening of the solid reaction raw materials are achieved.

Description

Technical Field

[0001] The invention relates to a stirring kettle, in particular to a stirring kettle for producing SN272 with sufficient reaction. Background Art

[0002] Di(2,4,4-trimethylpentyl)phosphinic acid is commonly known as SN272. It can be completely dissolved in aromatic and aliphatic diluents and is very stable under heating, acid and alkali conditions. It has good extraction and separation performance for cobalt in sulfate medium and chloride medium. The reaction process of its preparation is: the raw materials monohydrate sodium hypophosphite (crystal), acetic anhydride (liquid), olefin (liquid) are stirred under the catalysis of catalyst tert-butyl peroxyisooctanoate (liquid) → water washing → alkali washing → water washing twice → acidification → water washing three times → distillation to generate the finished product. A stirring kettle is generally used for stirring reaction. The broad understanding of a stirring kettle is a container for physical or chemical reactions. Through the structural design and parameter configuration of the container, the heating, evaporation, cooling and low-speed mixing functions required by the process are realized.

[0003] The stirring intensity and stirring effect of the mixing kettle mainly depend on the stirring structure. The current stirring structure will cause slight compaction of solid particles when there are solid particles in the internal raw materials. The stirring paddle cannot scrape the solid particles at the bottom of the mixing kettle, resulting in insufficient reaction, making the mixing not delicate enough. There is still room for improvement in its stirring efficiency. Summary of the invention

[0004] In order to overcome the shortcomings in the background technology, the present invention discloses a stirring kettle for producing SN272 with sufficient reaction. The reaction tank is tilted and a motor B for driving an arc scraper to rotate vertically is arranged on the leftmost side of the reaction tank. The two arc scrapers can scrape the lowest point of the hemispherical cavity B when rotating, and can effectively lift the solid reaction raw materials at the bottom of the hemispherical cavity B, thereby accelerating the reaction speed and avoiding slight compaction of the solid reaction raw materials.

[0005] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical scheme: A stirring kettle for producing SN272 with sufficient reaction, comprising a reaction tank, the reaction tank is tilted, the tilt angle of the top of the reaction tank to the right is 20-30 degrees, the reaction tank comprises a tank body, the tank body is a cylindrical structure, a cavity is arranged in the tank body, a hemispherical cover is arranged on the top of the tank body, a hemispherical cavity A penetrating the cavity is arranged in the hemispherical cover, a hemispherical bottom is arranged at the bottom of the tank body, a hemispherical cavity B penetrating the cavity is arranged in the hemispherical bottom, a motor A perpendicular to the outer wall of the hemispherical cover is arranged on the top of the hemispherical cover, a rotating shaft A provided on the motor A extends into the hemispherical cavity A along the through hole A provided at the center position of the spherical surface of the hemispherical cover and extends to the center position of the spherical surface of the hemispherical bottom, the lower end of the rotating shaft A is located in the hemispherical cavity B, the rotating shaft A and the reaction tank have the same tilt angle, a stirring paddle perpendicular to the rotating shaft A is arranged at the lower end of the rotating shaft A, a motor B perpendicular to the outer wall of the hemispherical bottom is arranged at the leftmost end of the reaction tank, and the motor The rotating shaft B provided in B is horizontally arranged, and the rotating shaft B extends into the hemispherical cavity B along the through hole B provided on the outer wall of the leftmost end of the reaction tank and is located at the inner mouth of the through hole B provided in the hemispherical cavity B. The end of the rotating shaft B is connected to the middle part of the outer arc surface of the "C"-shaped support rod, and the length of the "C"-shaped support rod is slightly less than half of the circumference of the hemispherical cavity B. Arc-shaped scraping nets are provided at both ends of the "C"-shaped support rod, and the arc-shaped scraping nets are densely covered with mesh holes. The length of the "C"-shaped support rod plus the two arc-shaped scraping nets is slightly greater than half of the circumference of the hemispherical cavity B. When the two arc-shaped scraping nets are rotated into the hemispherical cavity B driven by the rotating shaft B, the outer arc surfaces of the two arc-shaped scraping nets can fit with the inner wall of the hemispherical bottom, and the connecting line between the middle parts of the outer arc surfaces of the two arc-shaped scraping nets is equal to the diameter of the hemispherical cavity B. When one of the arc-shaped scraping nets rotates to the lowest point, it is just located at the lowest point of the hemispherical cavity B, and a discharge pipe is provided at the lowest point of the reaction tank.

[0006] The stirring kettle for producing SN272 with sufficient reaction is provided with a reducer A between the motor A and the rotating shaft A, and a bracket A is provided between the reducer A and the outer wall of the hemispherical cover.

[0007] The stirring kettle for producing SN272 with sufficient reaction is provided with a connecting rod between the stirring paddle and the rotating shaft A.

[0008] The stirring kettle for producing SN272 with sufficient reaction is provided with a plurality of legs at the bottom of the reaction tank.

[0009] The stirred tank for producing SN272 with sufficient reaction is provided with a feed pipe at the highest point of the reaction tank.

[0010] The stirred kettle for producing SN272 with sufficient reaction is provided with valves on the feed pipe and the discharge pipe.

[0011] The stirring kettle for producing SN272 with sufficient reaction is provided with a reducer B between the rotating shaft B and the motor B, and a bracket B is provided between the reducer B and the outer wall of the hemispherical bottom.

[0012] In the stirred kettle for producing SN272 with sufficient reaction, the diameter of the hemispherical cavity A and the diameter of the hemispherical cavity B are respectively the same as the diameter of the cavity.

[0013] Due to the adoption of the above technical solution, the present invention has the following beneficial effects: The stirring kettle for producing SN272 with sufficient reaction described in the present invention is arranged by tilting the reaction tank, and arranging a motor B for driving an arc scraper to rotate vertically on the leftmost side of the reaction tank. The two arc scrapers can scrape the lowest point of the hemispherical cavity B when rotating, and can effectively lift the solid reaction raw materials located at the bottom of the hemispherical cavity B, thereby achieving the purpose of accelerating the reaction speed and avoiding slight hardening of the solid reaction raw materials. The present invention has a simple and practical structure and a reasonable design, solves the disadvantage that the traditional stirring kettle cannot lift the solid materials at the bottom of the tank, and has promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the reaction tank of the present invention; Figure 3 It is a schematic diagram of the structure of the cooperation between the "C"-shaped support rod and the motor B of the present invention.

[0015] In the figure: 1. bracket A; 2. hemispherical cover; 3. arc scraper; 4. connecting rod; 5. stirring paddle; 6. support leg; 7. discharge pipe; 8. motor A; 9. reducer A; 10. feed pipe; 11. hemispherical cavity A; 12. rotating shaft A; 13. mesh; 14. "C" shaped support rod; 15. tank body; 16. bracket B; 17. rotating shaft B; 18. motor B; 19. reducer B; 20. cavity; 21. hemispherical bottom; 22. hemispherical cavity B; 23. perforation A; 24. perforation B. DETAILED DESCRIPTION

[0016] The present invention can be explained in more detail by the following examples, the present invention is not limited to the following examples, and the purpose of disclosing the present invention is to protect all changes and improvements within the scope of the present invention; In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0017] Combined with Figures 1 to 3The stirring kettle for producing SN272 with sufficient reaction comprises a reaction tank, which is tilted, and the tilt angle of the top of the reaction tank to the right is 20-30 degrees. The reaction tank comprises a tank body 15, and the tank body 15 is a cylindrical structure. A cavity 20 is arranged in the tank body 15, and a hemispherical cover 2 is arranged on the top of the tank body 15. A hemispherical cavity A11 penetrating the cavity 20 is arranged in the hemispherical cover 2, and a hemispherical bottom 21 is arranged at the bottom of the tank body 15. A hemispherical cavity B22 penetrating the cavity 20 is arranged in the hemispherical bottom 21, and the diameter of the hemispherical cavity A11 and the diameter of the hemispherical cavity B22 are respectively the same as the diameter of the cavity 20, and a hemispherical bottom 21 is arranged at the top of the hemispherical cover 2 perpendicular to the outer wall of the hemispherical cover 2. The motor A8 is provided with a rotating shaft A12 which extends into the hemispherical cavity A11 along the through hole A23 provided at the center position of the spherical surface of the hemispherical cover 2 and extends to the spherical center position of the hemispherical bottom 21. A reducer A9 is provided between the motor A8 and the rotating shaft A12. A bracket A1 is provided between the reducer A9 and the outer wall of the hemispherical cover 2. The lower end of the rotating shaft A12 is located in the hemispherical cavity B22. The rotating shaft A12 and the reaction tank have the same inclination angle. A stirring paddle 5 perpendicular to the rotating shaft A12 is provided at the lower end of the rotating shaft A12. A connecting rod 4 is provided between the stirring paddle 5 and the rotating shaft A12. A motor B18 perpendicular to the outer wall of the hemispherical bottom 21 is provided at the leftmost end of the reaction tank. The rotating shaft B17 provided on the motor B18 is arranged horizontally, a reducer B19 is provided between the rotating shaft B17 and the motor B18, a bracket B16 is provided between the reducer B19 and the outer wall of the hemispherical bottom 21, the rotating shaft B17 extends into the hemispherical cavity B22 along the through hole B24 provided on the outer wall of the leftmost end of the reaction tank and is located at the inner mouth of the through hole B24 provided on the hemispherical cavity B22, the end of the rotating shaft B17 is connected to the middle part of the outer arc surface of the "C"-shaped support rod 14, the length of the "C"-shaped support rod 14 is slightly smaller than half of the circumference of the hemispherical cavity B22, and arc-shaped scraping nets 3 are provided at both ends of the "C"-shaped support rod 14, and mesh holes 13 are densely distributed on the arc-shaped scraping net 3. The length of the "-shaped support rod 14 plus the two arc-shaped scraping nets 3 is slightly larger than half of the circumference of the hemispherical cavity B22. When the two arc-shaped scraping nets 3 are driven by the rotating shaft B17 to rotate into the hemispherical cavity B22, the outer arc surfaces of the two arc-shaped scraping nets 3 can fit the inner wall of the hemispherical bottom 21. The connecting line between the middle parts of the outer arc surfaces of the two arc-shaped scraping nets 3 is equal to the diameter of the hemispherical cavity B22. When one of the arc-shaped scraping nets 3 rotates to the lowest point, it is exactly located at the lowest point of the hemispherical cavity B22. A discharge pipe 7 is provided at the lowest point of the reaction tank, a plurality of legs 6 are provided at the bottom of the reaction tank, a feed pipe 10 is provided at the highest point of the reaction tank, and valves are provided on the feed pipe 10 and the discharge pipe 7.

[0018] The stirring kettle for producing SN272 with sufficient reaction described in the present invention is implemented. The motor A8 and the motor B18 are connected to the switch and the power supply respectively. The valve on the feed pipe 10 is opened and the valve on the discharge pipe 7 is closed. The reaction raw materials are injected into the reaction tank. The motor A8 and the motor B18 are turned on. The motor A8 drives the stirring paddle 5 to stir the reaction raw materials in the reaction tank. The motor B18 drives the two arc scrapers 3 to continuously lift the solid particles in the reaction raw materials. The vertical rotation of the two arc scrapers 3 can effectively lift the reaction raw materials located at the bottom of the hemispherical cavity B22. The setting of the mesh 13 enables the solid particles in the reaction raw materials to be better adsorbed on the two arc scrapers 3. The tilting setting of the reaction tank provides space and possibility for the vertical rotation of the two arc scrapers 3. The tilting setting of the rotating shaft A12 cooperates with the setting of the hemispherical cavity B22 and will not affect the normal stirring effect of the reaction raw materials. After the reaction is completed, the valve on the discharge pipe 7 is opened to output the liquid finished product, which has the purpose of accelerating the reaction speed and avoiding slight hardening of the solid reaction raw materials.

[0019] Parts of the present invention not described in detail are prior art.

Claims

1. A stirred tank for producing SN272 with sufficient reaction, including a reaction tank, characterized by: The reaction tank is tilted, and the tilt angle of the top of the reaction tank to the right is 20-30 degrees. The reaction tank comprises a tank body (15), the tank body (15) is a cylindrical structure, a cavity (20) is arranged in the tank body (15), a hemispherical cover (2) is arranged on the top of the tank body (15), a hemispherical cavity A (11) penetrating the cavity (20) is arranged in the hemispherical cover (2), a hemispherical bottom (21) is arranged at the bottom of the tank body (15), a hemispherical cavity B (22) penetrating the cavity (20) is arranged in the hemispherical bottom (21), and a hemispherical cavity (22) perpendicular to the outer wall of the hemispherical cover (2) is arranged on the top of the hemispherical cover (2). The motor A (8) is provided with a rotating shaft A (12) extending into the hemispherical cavity A (11) along a through hole A (23) provided at the center position of the spherical surface of the hemispherical cover (2) and extending toward the center position of the spherical surface of the hemispherical bottom (21); the lower end of the rotating shaft A (12) is located in the hemispherical cavity B (22); the rotating shaft A (12) and the reaction tank have the same inclination angle; a stirring paddle (5) perpendicular to the rotating shaft A (12) is provided at the lower end of the rotating shaft A (12); a motor B (18) perpendicular to the outer wall of the hemispherical bottom (21) is provided at the leftmost end of the reaction tank; the motor B (18) is provided with The rotating shaft B (17) is arranged horizontally, and the rotating shaft B (17) extends into the hemispherical cavity B (22) along the through hole B (24) provided on the outer wall of the leftmost end of the reaction tank and is located at the inner mouth of the through hole B (24) provided in the hemispherical cavity B (22). The end of the rotating shaft B (17) is connected to the middle part of the outer arc surface of the "C"-shaped support rod (14). The length of the "C"-shaped support rod (14) is slightly less than half of the circumference of the hemispherical cavity B (22). An arc scraper net (3) is provided at both ends of the "C"-shaped support rod (14). The arc scraper net (3) is densely covered with mesh holes (13). The "C"-shaped The length of the support rod (14) plus the two arc-shaped scraping nets (3) is slightly greater than half of the circumference of the hemispherical cavity B (22). When the two arc-shaped scraping nets (3) are driven by the rotating shaft B (17) to rotate into the hemispherical cavity B (22), the outer arc surfaces of the two arc-shaped scraping nets (3) can fit the inner wall of the hemispherical bottom (21). The line between the middle parts of the outer arc surfaces of the two arc-shaped scraping nets (3) is equal to the diameter of the hemispherical cavity B (22). When one of the arc-shaped scraping nets (3) rotates to the lowest point, it is exactly located at the lowest point of the hemispherical cavity B (22). A discharge pipe (7) is provided at the lowest point of the reaction tank.

2. The stirred tank for producing SN272 according to claim 1 is characterized in that: A reducer A (9) is provided between the motor A (8) and the rotating shaft A (12), and a bracket A (1) is provided between the reducer A (9) and the outer wall of the hemispherical cover (2).

3. The stirred tank for producing SN272 according to claim 1 is characterized in that: A connecting rod (4) is provided between the stirring paddle (5) and the rotating shaft A (12).

4. The stirred tank for producing SN272 according to claim 1 is characterized in that: A plurality of supporting legs (6) are provided at the bottom of the reaction tank.

5. The stirred tank for producing SN272 with sufficient reaction according to claim 1 is characterized in that: A feed pipe (10) is provided at the highest point of the reaction tank.

6. The stirred tank for producing SN272 according to claim 5 is characterized in that: Valves are provided on both the feed pipe (10) and the discharge pipe (7).

7. The stirred tank for producing SN272 with sufficient reaction according to claim 1 is characterized in that: A reducer B (19) is provided between the rotating shaft B (17) and the motor B (18), and a bracket B (16) is provided between the reducer B (19) and the outer wall of the hemispherical bottom (21).

8. The stirred tank for producing SN272 with sufficient reaction according to claim 1 is characterized in that: The diameter of the hemispherical cavity A (11) and the diameter of the hemispherical cavity B (22) are respectively the same as the diameter of the cavity body (20).

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