Reaction kettle for synthesizing diiodomethane and use method of reaction kettle

Abstract

The invention discloses a reaction kettle for synthesizing diiodomethane and a use method of the reaction kettle, and particularly relates to the technical field of synthesis of diiodomethane. The reaction kettle comprises a kettle body, a reaction inner container is arranged in the kettle body, a kettle cover is arranged above the kettle body, a supporting frame is arranged below the outside of the kettle body, connecting rods are arranged on the two sides of the kettle body, a gear is arranged on one side of the supporting frame, a mounting seat is arranged below the gear, and a tooth row is arranged above the mounting seat. A mounting groove is formed in the upper end of the mounting seat, a hydraulic cylinder is arranged in the mounting groove, a temperature control structure is arranged outside the reaction liner, and the temperature control structure comprises a heating assembly and a cooling assembly. According to the reaction kettle, the tooth row, the mounting base and the gear are matched with one another, the reaction kettle can be driven to swing, the stirring effect is better in cooperation with the built-in stirring paddle, the heating assembly and the cooling assembly which are crossed are arranged in the reaction kettle, the reaction kettle is rapidly heated or cooled, the temperature of the reaction kettle is accurately controlled, and the using effect of the reaction kettle is improved.

Description

Technical Field

[0001] The invention relates to the technical field of diiodomethane synthesis, in particular to a reaction kettle for diiodomethane synthesis and a use method thereof. Background Art

[0002] Diiodomethane is a colorless, clear to light yellow heavy liquid, used as an analytical reagent, and widely used in organic synthesis, separation and analysis of minerals. The synthesis of diiodomethane adopts the process route of reducing iodoform with frost. The synthesis of diiodomethane requires the use of a reactor for reaction. The reactor is a container for physical or chemical reactions. The stirring shaft is driven by a motor to stir the reactants to make them react fully to obtain the required substances. It is widely used in production users such as petroleum, chemical, rubber, pesticide, dye, medicine, food, and various scientific research experimental projects.

[0003] Most of the existing reactors are equipped with an agitator in the reactor body. The agitator is driven by a rotating motor installed at the bottom of the reactor body. The stirring effect can be improved by stirring at the bottom. The bottom stirring structure is simple, occupies little space, is easy to maintain, and has little mechanical loss. By adding a static mixer, a first mixing mechanism and a second mixing mechanism are arranged inside the static mixer. The materials entering the static mixer can be efficiently mixed multiple times, which can greatly improve the mixing effect.

[0004] However, the stirring structure of the existing reactor is generally a single-helix static mixer, which produces a vortex effect on the material through the mixer to promote the mixing of the raw materials. The static mixer has a simple structure and a limited mixing effect on the materials. In addition, the temperature control efficiency of the reactor is poor, which can easily lead to an excessively high polymerization reaction temperature, reduce the use effect of the reactor, and cannot meet the use requirements. Summary of the invention

[0005] Technical problem: In view of the prior art, the stirring structure of the reactor is generally a single-helix static mixer, which produces a vortex effect on the material to promote the mixing of the raw materials. However, the static mixer has a simple structure and a limited mixing effect on the materials. In addition, the temperature control efficiency of the reactor is poor, which can easily lead to an excessively high polymerization reaction temperature, reduce the use effect of the reactor, and fail to meet the use requirements. The present invention proposes a reactor for diiodomethane synthesis and a method for using the same.

[0006] Technical solution: A reaction kettle for diiodomethane synthesis, comprising a kettle body, a reaction liner is arranged inside the kettle body, and the reaction liner is fixedly connected to the kettle body, a kettle cover is arranged above the kettle body, a support frame is arranged below the outside of the kettle body, connecting rods are arranged on both sides of the kettle body, and one end of the connecting rod is fixedly connected to the kettle body, the connecting rod is rotatably connected to the support frame, a gear is arranged on one side of the support frame, and the gear is connected to the other end of the connecting rod, a mounting seat is arranged below the gear, and the mounting seat is fixedly connected to the support frame, a tooth row is arranged above the mounting seat, a mounting groove is arranged at the upper end of the mounting seat, a slider is arranged inside the mounting groove, and the slider slides with the mounting seat, the slider is arranged below the tooth row, and the slider is fixedly connected to the tooth row, the cross-sections of the mounting groove and the slider are both T-shaped, a hydraulic cylinder is arranged inside the mounting groove, and the hydraulic cylinder is arranged on one side of the slider, and the hydraulic cylinder is fixedly connected to the mounting seat and the slider;

[0007] Among them, a temperature control structure is arranged on the outside of the reaction liner, and three groups of temperature control structures are arranged, and the three groups of temperature control structures are evenly arranged on the outer wall of the reaction liner. The temperature control structure includes a heating component and a cooling component. There are four heating components and cooling components in each group of temperature control structures. Each group of heating components and cooling components are arranged in parallel, and the heating components and cooling components are arranged equidistantly from top to bottom on the outside of the reaction liner. The heating component adopts an electric heating plate, and the cooling component adopts a semiconductor cooling plate, and the cold end of the semiconductor cooling plate is in contact with the reaction liner. Heat dissipation holes are arranged on the kettle body, and the heat dissipation holes are arranged on one side of the cooling component.

[0008] Preferably, a connecting lifting ring is provided above the kettle cover, four connecting lifting rings are provided, and the connecting lifting rings are threadedly connected to the kettle body and the reaction liner, a sealing ring is provided at the lower end of the kettle cover, and the sealing ring is connected to the kettle cover as a whole, and the sealing ring is arranged along the edge of the kettle cover.

[0009] Preferably, a feeding pipe is arranged above the kettle cover, and the feeding pipe is connected to the kettle cover as an integral whole, a piston cover is arranged at the upper end of the feeding pipe, and the piston cover is threadedly connected to the feeding pipe, a discharge port is arranged at the lower end of the reaction liner, a discharge valve pipe is arranged below the discharge port, and the discharge valve pipe is connected to the reaction liner as an integral whole, and an observation window is arranged at the upper end of the kettle cover, and the observation window and the kettle cover are arranged as an integral whole.

[0010] Preferably, a motor is provided above the kettle cover, and the motor is connected to the kettle cover by screws, a stirring paddle is provided inside the reaction liner, and one end of the stirring paddle is connected to the output end of the motor, a dynamic seal is provided at the contact point between the stirring paddle and the kettle cover, and the dynamic seal is fixedly connected to the kettle cover, the dynamic seal is provided outside the stirring paddle, and the dynamic seal is rotatably connected to the stirring paddle, a support seat is provided inside the discharge port, and the support seat is fixedly connected to the reaction liner, the support seat is provided below the stirring paddle, and the stirring paddle is rotatably connected to the support seat.

[0011] Preferably, a scraper is provided outside the stirring paddle, and the scraper is fixedly connected to the stirring paddle, the scraper fits against the inner wall of the reaction liner, and the end face of the scraper is arranged in an arc shape.

[0012] Preferably, a pressure sensor is provided on the top of the kettle cover, and the pressure sensor is connected to the kettle cover as an integral whole, a pressure relief valve tube is provided at the upper end of the kettle cover, and the pressure relief valve tube is connected to the kettle cover as an integral whole, a filter membrane is provided on the top of the kettle cover, and the filter membrane is fixedly connected to the kettle cover, and the filter membrane is provided below the pressure relief valve tube.

[0013] Preferably, a temperature sensor is provided on one side of the kettle body, four temperature sensors are provided, and the temperature sensor is connected to the reaction liner as a whole, and the four temperature sensors are equidistantly arranged from top to bottom along the kettle body.

[0014] Preferably, a connecting plate is provided between the kettle body and the reaction liner, eight connecting plates are provided, and the connecting plates are equidistantly arranged outside the reaction liner, the connecting plates are fixedly connected to the kettle body and the reaction liner, and the connecting plates are arranged between the heating component and the cooling component.

[0015] Preferably, an anti-skid shock-absorbing leg is provided at the lower end of the support frame, and the anti-skid shock-absorbing leg is fixedly connected to the support frame, a fixing clamp is provided above the support frame, and the fixing clamp is connected to the support frame by screws, a bearing is provided at the contact point between the connecting rod, the support frame and the fixing clamp, and the bearing is clamped with the support frame and the connecting rod, and the bearing is provided on the outside of the connecting rod.

[0016] A method for using a reaction kettle for diiodomethane synthesis comprises the following steps:

[0017] Step 1: Open the piston cover and add the synthetic raw materials from the feeding tube into the reaction tank, turn on the motor to drive the stirring paddle to rotate clockwise, and the rotating stirring paddle stirs the raw materials in the reaction tank;

[0018] Step 2: Drive the hydraulic cylinder to drive the slider to slide in the installation groove. As the slider slides, the gear row moves along the installation groove. The gear row is meshed with the gear. As the gear row moves, the connecting rod rotates. The reactor is rotated with the help of the connecting rod. The reactor is driven to reciprocate by changing the moving direction of the gear row, so that the reactor swings.

[0019] Step 3: The temperature sensor measures the temperature of the reactants. There are multiple temperature sensors that can reflect the temperature of different parts of the reactor. The heating component or the cooling component is turned on according to the measured reaction temperature. The heating component heats the reaction liner, and the cooling component cools the reaction liner to accurately control the reaction temperature.

[0020] Step 4: The pressure sensor measures the internal pressure of the reactor. When the internal pressure of the reactor is too high, the pressure relief valve pipe is opened to discharge the over-pressure gas through the pressure relief valve pipe;

[0021] Step 5: After the reaction is completed, open the discharge valve pipe to discharge the material, turn on the motor to drive the stirring paddle to rotate counterclockwise, and the rotating stirring paddle drives the scraper to rotate along the inner wall of the reaction liner, and the material attached to the reaction liner is dropped off by the scraper.

[0022] Beneficial effects: Compared with the prior art, the present invention has the following notable features:

[0023] 1. The device of the invention is provided with a motor, a stirring paddle, a scraper, a tooth row, a gear, a mounting seat, a hydraulic cylinder, a slider and a connecting rod. The motor drives the stirring paddle to rotate clockwise, and the rotating stirring paddle stirs the raw materials in the reaction liner to better mix the added raw materials. When unloading, the motor is turned on to drive the stirring paddle to rotate counterclockwise, and the rotating stirring paddle drives the scraper to rotate along the inner wall of the reaction liner, and the material attached to the reaction liner is dropped by the scraper; at the same time, when stirring, the hydraulic cylinder can be driven to drive the slider to slide in the mounting groove, and the tooth row is driven to move along the mounting groove as the slider slides, and the tooth row is meshed and connected with the gear. As the tooth row moves, the connecting rod is driven to rotate, and the reactor is driven to rotate with the help of the connecting rod. The reactor is driven to rotate back and forth by changing the moving direction of the tooth row, so that the reactor swings.

[0024] 2. The device of the invention is provided with a temperature sensor, a heating component and a cooling component. The temperature sensor measures the temperature of the reactant, and turns on the heating component or the cooling component according to the measured reaction temperature. The heating component heats the reaction liner, and the cooling component cools the reaction liner, so as to accurately control the reaction temperature.

[0025] 3. The device of the invention is equipped with a pressure sensor, a pressure relief valve tube and a filter membrane. The pressure sensor measures the internal pressure of the reactor. When the internal pressure of the reactor is too high, the pressure relief valve tube is opened to discharge the over-pressure gas through the pressure relief valve tube. The filter membrane filters the discharged gas to prevent the particles and dust raw materials in the reactor from escaping. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 is a side view of the present invention;

[0028] Figure 3 It is a connection relationship diagram of the motor, the feeding pipe and the pressure relief valve pipe and the kettle cover of the present invention;

[0029] Figure 4 It is a cross-sectional view of the kettle body of the present invention;

[0030] Figure 5 For the present invention Figure 4 A partial enlarged view of area A;

[0031] Figure 6 It is a cross-sectional view of the kettle body of the present invention;

[0032] Figure 7 A diagram showing the connection relationship between the connecting rod and the supporting frame of the present invention;

[0033] Figure 8 This is a structural diagram of the connection between the temperature control structure and the reaction liner of the present invention;

[0034] Fig. 9 For the present invention Figure 2 A partial enlarged view of area B.

[0035] In the figure: 1. kettle body; 2. support frame; 3. anti-skid shock-absorbing legs; 4. kettle cover; 5. motor; 6. observation window; 7. feeding pipe; 8. piston cover; 9. pressure sensor; 10. pressure relief valve pipe; 11. connecting lifting ring; 12. temperature sensor; 13. gear; 14. mounting seat; 15. gear row; 16. discharge valve pipe; 17. mounting groove; 18. filter membrane; 19. dynamic seal; 20. sealing ring; 21. reaction liner; 22. discharge port; 23. support seat; 24. heating component; 25. stirring paddle; 26. scraper; 27. connecting rod; 28. bearing; 29. ​​fixing clamp; 30. connecting plate; 31. cooling component; 32. temperature control structure; 33. hydraulic cylinder; 34. slider; 35. heat dissipation hole. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0037] like Figure 1-9 As shown, the present invention provides a reaction kettle for diiodomethane synthesis, comprising a kettle body 1, a reaction liner 21 is arranged inside the kettle body 1, and the reaction liner 21 is fixedly connected to the kettle body 1, a kettle cover 4 is arranged above the kettle body 1, a support frame 2 is arranged below the outside of the kettle body 1, connecting rods 27 are arranged on both sides of the kettle body 1, and one end of the connecting rod 27 is fixedly connected to the kettle body 1, and the connecting rod 27 is rotatably connected to the support frame 2, a gear 13 is arranged on one side of the support frame 2, and the gear 13 is connected to the other end of the connecting rod 27, and a mounting seat 14 is arranged below the gear 13, and the mounting seat 14 is fixedly connected to the support frame 2 A tooth row 15 is arranged above the mounting seat 14, a mounting groove 17 is arranged at the upper end of the mounting seat 14, a slider 34 is arranged inside the mounting groove 17, and the slider 34 slides with the mounting seat 14, the slider 34 is arranged below the tooth row 15, and the slider 34 is fixedly connected to the tooth row 15, the cross-sections of the mounting groove 17 and the slider 34 are both T-shaped, a hydraulic cylinder 33 is arranged inside the mounting groove 17, and the hydraulic cylinder 33 is arranged on one side of the slider 34, and the hydraulic cylinder 33 is fixedly connected to the mounting seat 14 and the slider 34, and a temperature control structure 32 is arranged outside the reaction liner 21, and the temperature control structure 32 is arranged in three groups, and the three The temperature control structure 32 is arranged equidistantly from top to bottom, and the temperature control structure 32 includes a heating component 24 and a cooling component 31. Four heating components 24 and cooling components 31 are provided, and the heating components 24 and cooling components 31 are arranged equidistantly outside the reaction liner 21. The heating component 24 and the cooling component 31 are arranged crosswise. The heating component 24 adopts an electric heating plate, and the cooling component 31 adopts a semiconductor cooling plate, and the cold end of the semiconductor cooling plate is in contact with the reaction liner 21. The kettle body 1 is provided with a heat dissipation hole 35, and the heat dissipation hole 35 is arranged on one side of the cooling component 31. A feeding pipe 7 is provided above the kettle cover 4, and the feeding pipe 7 is provided. The feed pipe 7 is connected to the kettle cover 4 as a whole, a piston cover 8 is provided at the upper end of the feed pipe 7, and the piston cover 8 is threadedly connected to the feed pipe 7, a discharge port 22 is provided at the lower end of the reaction liner 21, a discharge valve pipe 16 is provided below the discharge port 22, and the discharge valve pipe 16 is connected to the reaction liner 21 as a whole, an observation window 6 is provided at the upper end of the kettle cover 4, and the observation window 6 is provided as a whole with the kettle cover 4, a temperature sensor 12 is provided on one side of the kettle body 1, four temperature sensors 12 are provided, and the temperature sensors 12 are connected to the reaction liner 21 as a whole, and the four temperature sensors 12 are equidistantly arranged from top to bottom along the kettle body 1.

[0038] During use: open the piston cover 8 to add the synthetic raw materials from the feeding pipe 7 to the reaction liner 21, drive the hydraulic cylinder 33 to drive the slider 34 to slide in the installation groove 17, and as the slider 34 slides, the gear row 15 is driven to move along the installation groove 17, and the gear row 15 is meshed and connected with the gear 13. As the gear row 15 moves, the connecting rod 27 is driven to rotate, and the reactor is driven to rotate with the help of the connecting rod 27. The reactor is driven to rotate back and forth by changing the moving direction of the gear row 15, so as to achieve the swing of the reactor and mix the raw materials in the reactor. The temperature sensor 12 measures the temperature of the reactants, and the heating component 24 or the cooling component 31 is turned on according to the measured reaction temperature. The heating component 24 heats the reaction liner 21, and the cooling component 31 cools the reaction liner 21, so as to accurately control the reaction temperature. After the reaction is completed, the discharge valve pipe 16 is opened for discharge.

[0039] like Figure 1 and Figure 3 As shown, a connecting lifting ring 11 is arranged above the kettle cover 4, and four connecting lifting rings 11 are arranged. The connecting lifting rings 11 are threadedly connected to the kettle body 1 and the reaction liner 21. A sealing ring 20 is arranged at the lower end of the kettle cover 4, and the sealing ring 20 is connected to the kettle cover 4 as a whole. The sealing ring 20 is arranged along the edge of the kettle cover 4. The connecting lifting ring 11 acts as a connecting bolt to connect the kettle cover 4 with the reaction liner 21. With the help of the connecting lifting ring 11, the reactor can be lifted as a whole.

[0040] like Figure 1 , Figure 3 and Figure 4 As shown, a motor 5 is arranged above the kettle cover 4, and the motor 5 is connected to the kettle cover 4 by screws, a stirring paddle 25 is arranged inside the reaction liner 21, and one end of the stirring paddle 25 is connected to the output end of the motor 5, a dynamic seal 19 is arranged at the contact point between the stirring paddle 25 and the kettle cover 4, and the dynamic seal 19 is fixedly connected to the kettle cover 4, the dynamic seal 19 is arranged outside the stirring paddle 25, and the dynamic seal 19 is rotatably connected to the stirring paddle 25, a support seat 23 is arranged inside the discharge port 22, and the support seat 23 is fixedly connected to the reaction liner 21, the support seat 23 is arranged below the stirring paddle 25, and the stirring paddle 25 The stirring paddle 25 is rotatably connected to the support seat 23, and a scraper bar 26 is arranged on the outside of the stirring paddle 25, and the scraper bar 26 is fixedly connected to the stirring paddle 25, the scraper bar 26 is in contact with the inner wall of the reaction liner 21, and the end face of the scraper bar 26 is arranged in an arc shape, the motor 5 drives the stirring paddle 25 to rotate clockwise, the rotating stirring paddle 25 stirs the raw materials in the reaction liner 21, and the added raw materials are mixed and reacted better, and the motor 5 is turned on to drive the stirring paddle 25 to rotate counterclockwise during unloading, and the rotating stirring paddle 25 drives the scraper bar 26 to rotate in contact with the inner wall of the reaction liner 21, and the materials attached to the reaction liner 21 are hung down by the scraper bar 26.

[0041] like Figure 1 and Figure 3 As shown, a pressure sensor 9 is provided on the top of the kettle cover 4, and the pressure sensor 9 is connected to the kettle cover 4 as a whole. A pressure relief valve pipe 10 is provided on the upper end of the kettle cover 4, and the pressure relief valve pipe 10 is connected to the kettle cover 4 as a whole. A filter membrane 18 is provided on the top of the kettle cover 4, and the filter membrane 18 is fixedly connected to the kettle cover 4. The filter membrane 18 is arranged below the pressure relief valve pipe 10. The pressure sensor 9 measures the internal pressure of the reactor. When the internal pressure of the reactor is too large, the pressure relief valve pipe 10 is opened to discharge the overpressure gas through the pressure relief valve pipe 10. The filter membrane 18 filters the discharged gas to prevent the particles and dust raw materials in the reactor from escaping.

[0042] like Figure 1 , Figure 6 and Figure 7 As shown, a connecting plate 30 is arranged between the kettle body 1 and the reaction liner 21, and eight connecting plates 30 are arranged, and the connecting plates 30 are arranged equidistantly on the outside of the reaction liner 21. The connecting plate 30 is fixedly connected to both the kettle body 1 and the reaction liner 21, and the connecting plate 30 is arranged between the heating component 24 and the cooling component 31. The lower end of the support frame 2 is provided with an anti-skid shock-absorbing leg 3, and the anti-skid shock-absorbing leg 3 is fixedly connected to the support frame 2. A fixing clamp 29 is arranged above the support frame 2, and the fixing clamp 29 is connected to the support frame 2 by screws. A bearing 28 is arranged at the contact between the connecting rod 27 and the support frame 2 and the fixing clamp 29, and the bearing 28 is clamped with the support frame 2 and the connecting rod 27, and the bearing 28 is arranged on the outside of the connecting rod 27.

[0043] A method for using a reaction kettle for diiodomethane synthesis comprises the following steps:

[0044] Step 1: Open the piston cover 8 to add the synthetic raw materials from the feeding tube 7 into the reaction liner 21, turn on the motor 5 to drive the stirring paddle 25 to rotate clockwise, and the rotating stirring paddle 25 stirs the raw materials in the reaction liner 21;

[0045] Step 2: Drive the hydraulic cylinder 33 to drive the slider 34 to slide in the installation groove 17. As the slider 34 slides, the gear row 15 moves along the installation groove 17. The gear row 15 is meshed and connected with the gear 13. As the gear row 15 moves, the connecting rod 27 is rotated. The reactor is rotated by means of the connecting rod 27. By changing the moving direction of the gear row 15, the reactor is driven to reciprocate, thereby realizing the swing of the reactor.

[0046] Step 3: The temperature sensor 12 measures the temperature of the reactants. There are multiple temperature sensors 12, which can reflect the temperature of different parts of the reactor. The heating component 24 or the cooling component 31 is turned on according to the measured reaction temperature. The heating component 24 heats the reaction liner 21, and the cooling component 31 cools the reaction liner 21, so as to accurately control the reaction temperature.

[0047] Step 4: The pressure sensor 9 measures the internal pressure of the reactor. When the internal pressure of the reactor is too high, the pressure relief valve pipe 10 is opened to discharge the over-pressure gas through the pressure relief valve pipe 10;

[0048] Step 5: After the reaction is completed, open the discharge valve pipe 16 to discharge the material, turn on the motor 5 to drive the stirring paddle 25 to rotate counterclockwise, and the rotating stirring paddle 25 drives the scraper 26 to rotate along the inner wall of the reaction liner 21, and the material attached to the reaction liner 21 is dropped by the scraper 26.

Claims

1. A reaction kettle for diiodomethane synthesis, comprising a kettle body (1), characterized in that: A reaction liner (21) is arranged inside the kettle body (1), and the reaction liner (21) is fixedly connected to the kettle body (1); a kettle cover (4) is arranged above the kettle body (1); a support frame (2) is arranged below the outside of the kettle body (1); connecting rods (27) are arranged on both sides of the kettle body (1), and one end of the connecting rod (27) is fixedly connected to the kettle body (1); the connecting rod (27) is rotatably connected to the support frame (2); a gear (13) is arranged on one side of the support frame (2), and the gear (13) is connected to the other end of the connecting rod (27); a mounting seat (14) is arranged below the gear (13), and the mounting seat (14) is connected to the support frame (2). The mounting seat (14) is fixedly connected, a tooth row (15) is arranged above the mounting seat (14), a mounting groove (17) is arranged at the upper end of the mounting seat (14), a slider (34) is arranged inside the mounting groove (17), and the slider (34) slides with the mounting seat (14), the slider (34) is arranged below the tooth row (15), and the slider (34) is fixedly connected with the tooth row (15), the cross sections of the mounting groove (17) and the slider (34) are both T-shaped, a hydraulic cylinder (33) is arranged inside the mounting groove (17), and the hydraulic cylinder (33) is arranged on one side of the slider (34), and the hydraulic cylinder (33) is fixedly connected with the mounting seat (14) and the slider (34); The reaction liner (21) is provided with a temperature control structure (32) on the outside. The temperature control structure (32) is provided with three groups, and the three groups of temperature control structures (32) are evenly arranged on the outer wall of the reaction liner (21). The temperature control structure (32) includes a heating component (24) and a cooling component (31). Each group of temperature control structures (32) has four heating components (24) and cooling components (31). Each group of heating components (24) and cooling components (31) are arranged in parallel, and the heating components (24) and cooling components (31) are arranged equidistantly from top to bottom on the outside of the reaction liner (21). The heating component (24) adopts an electric heating plate, and the cooling component (31) adopts a semiconductor cooling plate, and the cold end of the semiconductor cooling plate is in contact with the reaction liner (21). The kettle body (1) is provided with a heat dissipation hole (35), and the heat dissipation hole (35) is arranged on one side of the cooling component (31).

2. A reaction kettle for diiodomethane synthesis according to claim 1, characterized in that: A connecting hanging ring (11) is arranged above the kettle cover (4), four connecting hanging rings (11) are arranged, and the connecting hanging rings (11) are threadedly connected to the kettle body (1) and the reaction liner (21); a sealing ring (20) is arranged at the lower end of the kettle cover (4), and the sealing ring (20) is connected to the kettle cover (4) as a whole, and the sealing ring (20) is arranged along the edge of the kettle cover (4).

3. A reaction kettle for diiodomethane synthesis according to claim 2, characterized in that: A feeding pipe (7) is arranged above the kettle cover (4), and the feeding pipe (7) is connected to the kettle cover (4) as a whole; a piston cover (8) is arranged at the upper end of the feeding pipe (7), and the piston cover (8) is threadedly connected to the feeding pipe (7); a discharge port (22) is arranged at the lower end of the reaction vessel (21); a discharge valve pipe (16) is arranged below the discharge port (22), and the discharge valve pipe (16) is connected to the reaction vessel (21) as a whole; an observation window (6) is arranged at the upper end of the kettle cover (4), and the observation window (6) is arranged as a whole with the kettle cover (4).

4. A reaction kettle for diiodomethane synthesis according to claim 3, characterized in that: A motor (5) is arranged above the kettle cover (4), and the motor (5) is connected to the kettle cover (4) by screws; a stirring paddle (25) is arranged inside the reaction liner (21), and one end of the stirring paddle (25) is connected to the output end of the motor (5); a dynamic seal (19) is arranged at the contact point between the stirring paddle (25) and the kettle cover (4), and the dynamic seal (19) is fixedly connected to the kettle cover (4); the dynamic seal (19) is arranged outside the stirring paddle (25), and the dynamic seal (19) is rotatably connected to the stirring paddle (25); a support seat (23) is arranged inside the discharge port (22), and the support seat (23) is fixedly connected to the reaction liner (21); the support seat (23) is arranged below the stirring paddle (25), and the stirring paddle (25) is rotatably connected to the support seat (23).

5. A reaction kettle for diiodomethane synthesis according to claim 4, characterized in that: A scraper (26) is arranged outside the stirring paddle (25), and the scraper (26) is fixedly connected to the stirring paddle (25). The scraper (26) is in contact with the inner wall of the reaction liner (21), and the end face of the scraper (26) is arranged in an arc shape.

6. A reaction kettle for diiodomethane synthesis according to claim 1, characterized in that: A pressure sensor (9) is arranged on the top of the kettle cover (4), and the pressure sensor (9) is connected to the kettle cover (4) as a whole; a pressure relief valve pipe (10) is arranged on the upper end of the kettle cover (4), and the pressure relief valve pipe (10) is connected to the kettle cover (4) as a whole; a filter membrane (18) is arranged on the top of the kettle cover (4), and the filter membrane (18) is fixedly connected to the kettle cover (4); the filter membrane (18) is arranged below the pressure relief valve pipe (10).

7. A reaction kettle for diiodomethane synthesis according to claim 1, characterized in that: A temperature sensor (12) is arranged on one side of the kettle body (1), four temperature sensors (12) are arranged, and the temperature sensor (12) is connected to the reaction liner (21) as a whole. The four temperature sensors (12) are arranged equidistantly from top to bottom along the kettle body (1).

8. A reaction kettle for diiodomethane synthesis according to claim 1, characterized in that: A connecting plate (30) is provided between the kettle body (1) and the reaction liner (21), eight connecting plates (30) are provided, and the connecting plates (30) are arranged equidistantly outside the reaction liner (21), the connecting plates (30) are fixedly connected to the kettle body (1) and the reaction liner (21), and the connecting plates (30) are arranged between the heating component (24) and the cooling component (31).

9. A reaction kettle for diiodomethane synthesis according to claim 1, characterized in that: The lower end of the support frame (2) is provided with an anti-skid shock-absorbing leg (3), and the anti-skid shock-absorbing leg (3) is fixedly connected to the support frame (2); a fixing clamp (29) is provided above the support frame (2), and the fixing clamp (29) is connected to the support frame (2) by screws; a bearing (28) is provided at the contact point between the connecting rod (27) and the support frame (2) and the fixing clamp (29), and the bearing (28) is clamped with the support frame (2) and the connecting rod (27); and the bearing (28) is provided outside the connecting rod (27).

10. The method for using a diiodomethane synthesis reactor according to claim 7, characterized in that: The following steps are involved: Step 1: Open the piston cover (8) and add the synthetic raw materials from the feeding tube (7) into the reaction vessel (21), turn on the motor (5) to drive the stirring paddle (25) to rotate clockwise, and the rotating stirring paddle (25) stirs the raw materials in the reaction vessel (21); Step 2: driving the hydraulic cylinder (33) to drive the slider (34) to slide in the installation groove (17), and as the slider (34) slides, the gear row (15) is driven to move along the installation groove (17), and the gear row (15) is meshed and connected with the gear (13), and as the gear row (15) moves, the connecting rod (27) is driven to rotate, and the reactor is driven to rotate by means of the connecting rod (27), and the reactor is driven to reciprocate by changing the moving direction of the gear row (15), so as to realize the swinging of the reactor; Step 3: The temperature sensor (12) measures the temperature of the reactants. A plurality of temperature sensors (12) are provided to measure the temperature of different parts of the reactor. The heating component (24) or the cooling component (31) is turned on according to the measured reaction temperature. The heating component (24) heats the reaction liner (21), and the cooling component (31) cools the reaction liner (21), so as to accurately control the reaction temperature. Step 4: The pressure sensor (9) measures the internal pressure of the reactor. When the internal pressure of the reactor is too high, the pressure relief valve pipe (10) is opened to discharge the over-pressure gas through the pressure relief valve pipe (10); Step 5: After the reaction is completed, the discharge valve pipe (16) is opened to discharge the material, and the motor (5) is turned on to drive the stirring paddle (25) to rotate counterclockwise. The rotating stirring paddle (25) drives the scraper (26) to rotate along the inner wall of the reaction liner (21), and the material attached to the reaction liner (21) is dropped off by the scraper (26).

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