Temperature control reaction kettle for azodiisobutyronitrile production

Abstract

The utility model discloses a temperature control reaction kettle for azodiisobutyronitrile production. The temperature control reaction kettle comprises a bottom plate, the top of the bottom plate is fixedly connected with a heating box, the top of the heating box is fixedly connected with a stirring box, the top of the stirring box is fixedly connected with a connecting box, and the lower end of an inner cavity of the heating box is fixedly provided with a heating resistance wire. The stirring rod and the stirring blades are driven by the driving motor to rotate for full stirring, the temperature is monitored through the temperature monitor, when the temperature is too low, the second electromagnetic valve is started to convey raw materials to the inner cavity of the heating box under the cooperation of the connecting pipe, and the heating resistance wire is used for heating; after heating is completed, hot air is conveyed back to the inner cavity of the stirring box through the water pump under cooperation of the conveying pipe and the output pipe, when the temperature is too high, hot air in the inner cavity of the stirring box is discharged through cooperation of the fan in the second pipeline and the first pipeline, the real-time temperature control function is achieved, the mixing result cannot be affected, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical production equipment, in particular to a temperature-controlled reaction kettle for producing azobisisobutyronitrile. Background Art

[0002] Azobisisobutyronitrile is also called butyronitrile, referred to as AIBN. It is soluble in organic solvents such as methanol, ethanol, ether, acetone, petroleum ether and aniline. When azobisisobutyronitrile and chemical liquid need to be mixed and reacted, a reactor is required;

[0003] At present, when azobisisobutyronitrile and chemical liquid are mixed and reacted, a driving device drives a stirring device to stir azobisisobutyronitrile and the chemical liquid to achieve sufficient mixing. However, in actual use, the temperature during mixing cannot be controlled. Too high or too low temperature will affect the result of mixing azobisisobutyronitrile and chemical liquid, resulting in the mixed raw materials being unusable, further increasing the cost required for the production of azobisisobutyronitrile. Therefore, we provide a temperature-controlled reactor for the production of azobisisobutyronitrile. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a temperature-controlled reactor for the production of azobisisobutyronitrile, which drives a stirring rod and a stirring blade to rotate through a driving motor to fully stir, and monitors the temperature through a temperature monitor. When the temperature is too low, the second electromagnetic valve is started to transport the raw materials to the inner cavity of a heating box with the cooperation of a connecting pipe, and the raw materials are heated by a heating resistance wire. After the heating is completed, the raw materials are transported back to the inner cavity of the stirring box through a water pump with the cooperation of a conveying pipe and an output pipe. When the temperature is too high, the hot air in the inner cavity of the stirring box is discharged through the cooperation of a second pipe and a first pipe by a fan, so as to realize the function of real-time temperature control, will not affect the mixing result, reduce the cost required for production, and solve the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a temperature-controlled reactor for the production of azobisisobutyronitrile adopts the following technical scheme: comprising a bottom plate, a heating box is fixedly connected to the top of the bottom plate, a stirring box is fixedly connected to the top of the heating box, a connecting box is fixedly connected to the top of the stirring box, a heating resistance wire is fixedly installed at the lower end of the inner cavity of the heating box, fans are fixedly installed on both sides of the bottom of the inner cavity of the connecting box, the output end of the fan is fixedly connected to a first pipeline, and the input end of the fan and the inner cavity of the stirring box is fixedly connected to a second pipeline A driving motor is fixedly installed at the center of the bottom of the inner cavity of the connecting box, a stirring rod is fixedly connected to the output end of the driving motor, stirring blades are fixedly connected to both sides of the stirring rod, a temperature monitor is fixedly installed on the left side of the bottom of the inner cavity of the stirring box, a PLC controller is fixedly installed on the back of the connecting box, a connecting pipe is fixedly connected to the bottom of the back of the stirring box, a second electromagnetic valve is arranged on the top of the connecting pipe, a water pump is fixedly installed on the back of the heating box, an output pipe is fixedly connected to the output end of the water pump, and a delivery pipe is fixedly connected to the input end of the water pump.

[0008] As a preferred solution, a first filter plate is fixedly connected to the upper end of the inner cavity of the connection box, and a second filter plate is fixedly connected to the center of the inner cavity of the connection box.

[0009] Optionally, the hot air is delivered to the inner cavity of the connection box when discharged. In the process of the hot air rising, it first contacts the second filter plate, and the toxic gas in the hot air is filtered once by the second filter plate, and the toxic gas in the hot air is filtered twice by the first filter plate, thereby realizing the function of multiple filtration. It will not cause harm to the user's body after inhalation.

[0010] As a preferred solution, a feed pipe is fixedly connected to the top of the right side of the mixing box, and a sealing cover is movably connected to the top of the feed pipe.

[0011] Optionally, the provision of a feed pipe facilitates the user to pour azobisisobutyronitrile and chemical liquid into the inner cavity of the mixing box.

[0012] As a preferred solution, an exhaust port is provided on the top of the connection box, and a dustproof net is provided on the surface of the exhaust port.

[0013] Optionally, the air can be discharged smoothly by setting the exhaust port.

[0014] As a preferred solution, a discharge pipe is fixedly connected to the bottom of the right side of the heating box, and a first electromagnetic valve is arranged on the top of the discharge pipe.

[0015] Optionally, the first electromagnetic valve and the discharge pipe are provided to facilitate the user to discharge the mixed azobisisobutyronitrile and chemical liquid.

[0016] As a preferred solution, support columns are fixedly connected to the four sides of the bottom of the base plate, and support blocks are fixedly connected to the bottoms of the support columns.

[0017] Optionally, the entire device is effectively supported by providing support columns and support blocks.

[0018] As a preferred solution, a bearing is fixedly connected to the center of the bottom of the inner cavity of the stirring box, and the bottom of the stirring rod is fixedly connected to the inner ring of the stirring blade.

[0019] Optionally, the stirring blades are provided to reduce the wear of the stirring rod during rotation.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the utility model provides a temperature-controlled reactor for producing azobisisobutyronitrile, which has the following beneficial effects.

[0022] 1. The utility model drives the stirring rod and the stirring blade to rotate through the driving motor to fully stir, and monitors the temperature through the temperature monitor. When the temperature is too low, the second electromagnetic valve is started to transport the raw materials to the inner cavity of the heating box with the cooperation of the connecting pipe, and the raw materials are heated by the heating resistance wire. After the heating is completed, the raw materials are transported back to the inner cavity of the mixing box through the water pump with the cooperation of the conveying pipe and the output pipe. When the temperature is too high, the hot air in the inner cavity of the mixing box is discharged through the cooperation of the second pipe and the first pipe by the fan, so as to realize the function of real-time temperature control, will not affect the mixing result, and reduce the cost required for production.

[0023] 2. When discharged, the hot air is transported to the inner cavity of the connection box. In the process of the hot air rising, it first contacts the second filter plate, and the toxic gas in the hot air is filtered once through the second filter plate, and the toxic gas in the hot air is filtered twice through the first filter plate, realizing the function of multiple filtration, which will not cause harm to the user after inhalation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 This is a back view of the mixing box of the utility model;

[0026] Figure 3 This is a cross-sectional view of a mixing box of the present utility model.

[0027] In the figure: 1. dust screen; 2. exhaust port; 3. connecting box; 4. mixing box; 5. bottom plate; 6. support column; 7. support block; 8. sealing cover; 9. feed pipe; 10. heating box; 11. first electromagnetic valve; 12. discharge pipe; 13. output pipe; 14. delivery pipe; 15. water pump; 16. PLC controller; 17. second electromagnetic valve; 18. connecting pipe; 19. first filter plate; 20. second filter plate; 21. driving motor; 22. first pipeline; 23. fan; 24. second pipeline; 25. stirring rod; 26. stirring blade; 27. bearing; 28. temperature monitor; 29. ​​heating resistor wire. DETAILED DESCRIPTION

[0028] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0029] See also Figure 1-3 , the embodiments of the utility model will be further described below in conjunction with the accompanying drawings.

[0030] Example

[0031] A technical solution adopted by a temperature-controlled reactor for the production of azobisisobutyronitrile is as follows: comprising a bottom plate 5, a heating box 10 is fixedly connected to the top of the bottom plate 5, a stirring box 4 is fixedly connected to the top of the heating box 10, a connecting box 3 is fixedly connected to the top of the stirring box 4, a heating resistor 29 is fixedly installed at the lower end of the inner cavity of the heating box 10, fans 23 are fixedly installed on both sides of the bottom of the inner cavity of the connecting box 3, the output end of the fan 23 is fixedly connected to a first pipe 22, the input end of the fan 23 and the inner cavity of the stirring box 4 is fixedly connected to a second pipe 24, and the center of the bottom of the inner cavity of the connecting box 3 is fixedly connected to the second pipe 25. A driving motor 21 is fixedly installed, and a stirring rod 25 is fixedly connected to the output end of the driving motor 21, and stirring blades 26 are fixedly connected to both sides of the stirring rod 25. A temperature monitor 28 is fixedly installed on the left side of the bottom of the inner cavity of the stirring box 4, and a PLC controller 16 is fixedly installed on the back of the connecting box 3. A connecting pipe 18 is fixedly connected to the bottom of the back of the stirring box 4, and a second electromagnetic valve 17 is arranged on the top of the connecting pipe 18. A water pump 15 is fixedly installed on the back of the heating box 10, and an output end of the water pump 15 is fixedly connected to an output pipe 13, and an input end of the water pump 15 is fixedly connected to a delivery pipe 14.

[0032] Specifically, when it is necessary to mix azobisisobutyronitrile and chemical liquid, the user starts the driving motor 21 and the temperature monitor 28 through the PLC controller 16 to work simultaneously, the driving motor 21 drives the stirring rod 25 to rotate in the clockwise direction, and the stirring rod 25 drives the stirring blade 26 to rotate, so as to fully stir the azobisisobutyronitrile and the chemical liquid. During the stirring process, the temperature is monitored by the temperature monitor 28. When the monitored temperature is lower than the range set by the user, the temperature monitor 28 feeds back the data to the PLC controller 16, and the second electromagnetic valve 17 and the heating resistor 29 are started by the PLC controller 16 to work, and the second electromagnetic valve 17 is connected to the connecting pipe 1 through the second electromagnetic valve 17. 8, the raw materials are transported to the inner cavity of the heating box 10, and are heated by the heating resistor 29. After the heating is completed, the water pump 15 is started to work by the PLC controller 16, and the heated raw liquid is transported back to the inner cavity of the mixing box 4 by the water pump 15 in cooperation with the delivery pipe 14 and the output pipe 13. After the monitored temperature is higher than the range set by the user, the data is fed back to the PLC controller 16 through the temperature monitor 28, and the fan 23 is started to work by the PLC controller 16. The hot air in the inner cavity of the mixing box 4 is discharged by the fan 23 in cooperation with the second pipe 24 and the first pipe 22, thereby realizing the function of real-time temperature control, which will not affect the mixing result and reduce the cost required for production.

[0033] A first filter plate 19 is fixedly connected to the upper end of the inner cavity of the connecting box 3, a second filter plate 20 is fixedly connected to the center of the inner cavity of the connecting box 3, a feed pipe 9 is fixedly connected to the top of the right side of the mixing box 4, a sealing cover 8 is movably connected to the top of the feed pipe 9, an exhaust port 2 is opened at the top of the connecting box 3, a dustproof net 1 is arranged on the surface of the exhaust port 2, a discharge pipe 12 is fixedly connected to the bottom of the right side of the heating box 10, a first solenoid valve 11 is arranged on the top of the discharge pipe 12, support columns 6 are fixedly connected to the four sides of the bottom of the bottom plate 5, a support block 7 is fixedly connected to the bottom of the support column 6, a bearing 27 is fixedly connected to the center of the bottom of the inner cavity of the mixing box 4, and the bottom of the stirring rod 25 is fixedly connected to the inner ring of the stirring blade 26.

[0034] Specifically, the hot air is delivered to the inner cavity of the connection box 3 when being discharged. In the process of the hot air rising, it first contacts with the second filter plate 20, and the toxic gas in the hot air is filtered once by the second filter plate 20, and the toxic gas in the hot air is filtered twice by the first filter plate 19, thereby realizing the function of multiple filtration, which will not cause harm to the user after inhalation. The setting of the feed pipe 9 facilitates the user to pour azobisisobutyronitrile and chemical liquid into the inner cavity of the mixing box 4. The setting of the sealing cover 8 prevents external dust from entering the inner cavity of the mixing box 4, thereby further improving the cleanliness of the inner cavity of the mixing box 4. The setting of the exhaust port 2 , so that the air can be discharged smoothly. The dustproof net 1 is provided to prevent external dust from entering the inner cavity of the connection box 3, further improving the cleanliness of the inner cavity of the connection box 3. The first electromagnetic valve 11 and the discharge pipe 12 are provided to facilitate the user to discharge the mixed azobisisobutyronitrile and chemical liquid. The support column 6 and the support block 7 are provided to effectively support the entire device, and at the same time, the anti-slip function is achieved, which greatly improves the overall stability of the device. The stirring blade 26 is provided to reduce the wear of the stirring rod 25 during rotation, reduce the loss of the stirring rod 25 during rotation, and further improve the service life of the stirring rod 25.

[0035] The working principle of the utility model is as follows: when it is necessary to mix azobisisobutyronitrile and chemical liquid, the user starts the driving motor 21 and the temperature monitor 28 through the PLC controller 16 to work at the same time, the driving motor 21 drives the stirring rod 25 to rotate in the clockwise direction, and the stirring rod 25 drives the stirring blade 26 to rotate, so as to fully stir the azobisisobutyronitrile and the chemical liquid. During the stirring process, the temperature is monitored by the temperature monitor 28. After the monitored temperature is lower than the range set by the user, the data is fed back to the PLC controller 16 through the temperature monitor 28, and the second electromagnetic valve 17 and the heating resistor 29 are started by the PLC controller 16 to work. The raw materials are transported to the inner cavity of the heating box 10 through the second electromagnetic valve 17 in cooperation with the connecting pipe 18, and are heated by the heating resistor 29. After the heating is completed, the water is started by the PLC controller 16. The pump 15 works, and the heated stock solution is transported back to the inner cavity of the mixing box 4 through the water pump 15 in cooperation with the delivery pipe 14 and the output pipe 13. After the monitored temperature is higher than the range set by the user, the data is fed back to the PLC controller 16 through the temperature monitor 28, and the fan 23 is started by the PLC controller 16 to work. The hot air in the inner cavity of the mixing box 4 is discharged through the cooperation of the second pipe 24 and the first pipe 22 by the fan 23, so as to realize the function of real-time temperature control, will not affect the mixing result, and reduce the cost required for production. The hot air is transported to the inner cavity of the connecting box 3 when discharged. In the process of the hot air rising, it first contacts with the second filter plate 20, and the toxic gas in the hot air is filtered once by the second filter plate 20, and the toxic gas in the hot air is filtered twice by the first filter plate 19, so as to realize the function of multiple filtering, and the user will not cause harm to the body after inhalation.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A temperature-controlled reactor for producing azobisisobutyronitrile, comprising a bottom plate (5), characterized in that: The top of the bottom plate (5) is fixedly connected to a heating box (10), the top of the heating box (10) is fixedly connected to a stirring box (4), the top of the stirring box (4) is fixedly connected to a connecting box (3), the lower end of the inner cavity of the heating box (10) is fixedly installed with a heating resistance wire (29), both sides of the bottom of the inner cavity of the connecting box (3) are fixedly installed with fans (23), the output end of the fan (23) is fixedly connected to a first pipe (22), the input end of the fan (23) and passing through the inner cavity of the stirring box (4) is fixedly connected to a second pipe (24), and a driving motor (21) is fixedly installed at the center of the bottom of the inner cavity of the connecting box (3), and the driving motor (21) The output end of the heating box (10) is fixedly connected to a stirring rod (25), and stirring blades (26) are fixedly connected to both sides of the stirring rod (25). A temperature monitor (28) is fixedly installed on the left side of the bottom of the inner cavity of the stirring box (4). A PLC controller (16) is fixedly installed on the back of the connecting box (3). A connecting pipe (18) is fixedly connected to the bottom of the back of the stirring box (4), and a second electromagnetic valve (17) is arranged on the top of the connecting pipe (18). A water pump (15) is fixedly installed on the back of the heating box (10), and the output end of the water pump (15) is fixedly connected to the output pipe (13), and the input end of the water pump (15) is fixedly connected to the delivery pipe (14).

2. A temperature-controlled reactor for producing azobisisobutyronitrile according to claim 1, characterized in that: A first filter plate (19) is fixedly connected to the upper end of the inner cavity of the connection box (3), and a second filter plate (20) is fixedly connected to the center of the inner cavity of the connection box (3).

3. A temperature-controlled reactor for producing azobisisobutyronitrile according to claim 1, characterized in that: A feed pipe (9) is fixedly connected to the top of the right side of the mixing box (4), and a sealing cover (8) is movably connected to the top of the feed pipe (9).

4. A temperature-controlled reactor for producing azobisisobutyronitrile according to claim 1, characterized in that: An exhaust port (2) is provided on the top of the connection box (3), and a dustproof net (1) is provided on the surface of the exhaust port (2).

5. A temperature-controlled reactor for producing azobisisobutyronitrile according to claim 1, characterized in that: A discharge pipe (12) is fixedly connected to the bottom of the right side of the heating box (10), and a first electromagnetic valve (11) is arranged on the top of the discharge pipe (12).

6. A temperature-controlled reactor for producing azobisisobutyronitrile according to claim 1, characterized in that: The bottom of the base plate (5) is fixedly connected to support columns (6) on all four sides, and the bottom of the support columns (6) is fixedly connected to support blocks (7).

7. A temperature-controlled reactor for producing azobisisobutyronitrile according to claim 1, characterized in that: A bearing (27) is fixedly connected at the center of the bottom of the inner cavity of the stirring box (4), and the bottom of the stirring rod (25) is fixedly connected to the inner ring of the stirring blade (26).

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