Nitration reaction device

Abstract

The utility model belongs to the technical field of nitration reaction equipment, and particularly relates to a nitration reaction device which comprises a tank body, a heat energy conversion mechanism is arranged at the top end of a base, a driving disc is rotationally arranged on one side of a fixed block through a rotating rod, a V-shaped groove is formed in the circumferential surface of the driving disc, and a fixed block is arranged in the V-shaped groove. Two sets of supporting plates are fixedly arranged at the top end of the base in a mirror image mode, rotating shafts are arranged at the tops of the supporting plates in a rotating and penetrating mode through bearings, driven discs are fixedly arranged on the opposite faces of the two sets of rotating shafts, V-shaped grooves are formed in the circumferential faces of the driven discs, and a direct-current generator is fixedly arranged on one side of each supporting plate through a fixing frame. The two driving discs and the two driven discs are sleeved with nickel-titanium alloy coils in a transmission mode, heat generated by cooling water with the temperature increased after use is converted into kinetic energy and then converted into electric energy through cooperation of the heat energy conversion mechanism, the energy consumption of equipment is reduced, and meanwhile the cost of a production enterprise is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of nitration reaction equipment, in particular to a nitration reaction device. Background Art

[0002] The nitration reaction is a reaction process of introducing nitro groups into organic molecules. It is usually carried out in a kettle reactor. The mixed acid process and the nitration process in the nitration process are both highly exothermic reactions. The heat release is concentrated and the heating rate is fast. The cooling device is an important component of it. It can cool the reactor to quickly take away the heat released by the reaction.

[0003] A Chinese patent with publication number CN218854268U discloses a nitration reaction device, including a reactor, the reactor including a reactor body and a reactor cover detachably connected to the reactor body; a cooling jacket is provided on the outside of the reactor body, and a cold medium inlet and a cold medium outlet are respectively provided on the cooling jacket; a motor is provided on the reactor cover, a stirring shaft is provided in the reactor, and the output shaft of the motor extends into the reactor and is connected to the stirring shaft; a cooling component is provided at the middle position of the stirring shaft; stirring blades are provided on the upper and lower sides of the cooling component on the stirring shaft; an acid liquid dripping pipe and a material inlet pipe connected to the reactor body are provided on the reactor cover, and a material outlet pipe is provided at the bottom of the reactor body. Not only is a cooling jacket provided on the outer wall of the reactor body, but a cooling component is also provided in the reactor body, so that not only the material close to the outer wall of the reactor body can be cooled, but also the material inside the reactor body can be cooled, so as to quickly take away the heat of the nitration reaction of the material.

[0004] The above-mentioned nitration reaction device still has some problems in use. The nitration reaction releases a large amount of heat. The device cannot utilize the heat generated by the nitration reaction, but only cools the generated heat, which has poor practicality. The above-mentioned nitration reaction device does not effectively solve these problems; therefore, a nitration reaction device is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the shortcomings of the existing nitrification reaction device, a nitrification reaction device is proposed to solve the problem that the nitrification reaction releases a large amount of heat, the device cannot utilize the heat generated by the nitrification reaction, and only cools the generated heat, resulting in poor practicality.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: a nitration reaction device described in the utility model comprises a tank body, a spiral cooling channel is opened in the shell of the tank body, a liquid inlet pipe is fixedly arranged on one side of the top of the outer wall circumference of the tank body, one end of the liquid inlet pipe passes through the spiral cooling channel, a water pump is arranged on one side of the bottom end of the tank body, the other end of the liquid inlet pipe is fixedly connected to the water outlet position of the water pump, a base is arranged on one side of the tank body, a hot water tank is fixedly arranged on one side of the top end of the base, a liquid outlet pipe is fixedly arranged on one side of the bottom of the outer wall circumference of the tank body, one end of the liquid outlet pipe passes through the spiral cooling channel, the other end of the liquid outlet pipe is fixed and passed through on one side of the hot water tank, a cold water tank is fixedly arranged on one side of the top end of the base, and the cold water tank and the hot water tank are connected through a connecting pipe;

[0007] A heat energy conversion mechanism is arranged at the top of the base, and the heat energy conversion mechanism includes two groups of fixed blocks, which are respectively fixedly arranged at the center tops of the opposite surfaces of the outer walls of the hot water tank and the cold water tank. An active disk is arranged on one side of the fixed block through a rotating rod, and a V-shaped groove is provided on the circumferential surface of the active disk. Two groups of support plates are fixedly arranged at the top of the base in a mirror-image manner. The top of the support plate rotates through a bearing and is penetrated by a rotating shaft. A driven disk is fixedly arranged on the opposite surfaces of the two groups of rotating shafts, and a V-shaped groove is provided on the circumferential surface of the driven disk. A DC generator is fixedly arranged on one side of the support plate through a fixed frame. The transmission sleeves on the two groups of active disks and the two groups of driven disks are equipped with nickel-titanium alloy coils. The water suction port position of the water pump is connected with the cold water tank through a water suction pipe. An array of refrigeration pipes is fixedly assembled between the bottoms of the opposite surfaces of the inner walls of the cold water tank. Through the cooperation of the heat energy conversion mechanism, the heat generated by the cooling water with a temperature increase after use is converted into kinetic energy and then converted into electrical energy, thereby reducing the energy consumption of the equipment and the cost of the production enterprise.

[0008] Preferably, a battery is fixedly provided on one side of the top of the base, and the input end of the battery is electrically connected to the output ends of the two groups of DC generators through wires. Through the cooperation of the battery and the DC generator, the converted electric energy is stored for use by the equipment.

[0009] Preferably, a baffle is fixedly provided at a position slightly lower than the inner bottom end of the tank body, a first stirring shaft and a second stirring shaft are rotatably provided at the inner bottom end of the tank body in a mirror-image manner through bearings, and both are rotatably provided through the bearings and penetrate the baffle, a first spiral stirring blade and a second spiral stirring blade are fixedly provided on the circumferential surfaces of the first stirring shaft and the second stirring shaft, a driving motor is fixedly provided on one side of the bottom end of the tank body through a fixing frame, the first stirring shaft rotates and penetrates the outer bottom end of the tank body, an output end of the driving motor is fixedly connected to the bottom end of the first stirring shaft through a coupling, a driving gear and a driven gear are fixedly provided on the circumferential surfaces of the first stirring shaft and the second stirring shaft located between the bottom end of the baffle and the inner bottom end of the tank body, and the teeth of the two are meshed, through the cooperation of the driving gear, the driven gear, the first spiral stirring blade and the second spiral stirring blade, the first stirring shaft and the second stirring shaft respectively drive the first spiral stirring blade and the second spiral stirring blade to rotate, and the rotation directions of the two are opposite, so that the material and nitric acid in the tank body are tumbled up and down, thereby improving the stirring and mixing effect.

[0010] Preferably, a hollow disk is fixedly provided at the inner top of the tank body, and an array of leakage holes are opened at the bottom end of the hollow disk in a circular array. A material adding tube is fixedly provided at the center of the top end of the tank body, and the bottom end of the material adding tube passes through the inner arrangement of the tank body. A nitric acid adding tube is fixedly provided on one side of the top end of the tank body, and the bottom end of the nitric acid adding tube is connected with the hollow disk. Through the coordination of the hollow disk, the leakage holes and the nitric acid adding tube, the nitric acid liquid is distributed more evenly.

[0011] Preferably, a discharge pipe is fixedly provided on one side of the bottom end of the tank body, the discharge pipe passes through to the top of the baffle, and a valve is fixedly assembled on the discharge pipe, and the reaction mixed material is discharged through the cooperation of the discharge pipe and the valve.

[0012] Preferably, three groups of supporting legs are fixedly provided in a circular array at the bottom end of the tank body, and the overall stability of the tank body is ensured through the cooperation of the supporting legs.

[0013] Beneficial effects of the utility model:

[0014] The utility model provides a nitration reaction device. In order to recover a large amount of heat generated by the nitration reaction device, firstly, during the mixing and stirring process, a water pump is started to pump cooling water in a cold water tank into a liquid inlet pipe through a water suction pipe, and then the cooling water flows into a spiral cooling channel to absorb and take away the heat of a tank shell, and then the cooling water with a higher temperature enters a hot water tank through a liquid outlet pipe, and the cooling water with a higher temperature contacts a nickel-titanium alloy coil on an active disk above the hot water tank. Since the nickel-titanium alloy coil belongs to a shape memory alloy, its initial state is a straight line, and it is rapidly deformed and restored to a straight line state after contacting the hot cooling water. Since the nickel-titanium alloy coil is sleeved on two sets of active disks and two sets of driven disks, it cannot be restored to a straight line. state, and at the same time, a torque is generated to drive the active disk to rotate, and at the same time, it drives the two sets of driven disks and the active disk above the other cold water tank to rotate, and the refrigeration pipe is opened to cool the cooling water in the cold water tank. The nickel-titanium alloy coil rotating on the active disk above the cold water tank contacts the cooling water after refrigeration, so that the nickel-titanium alloy coil is cooled. Under the action of temperature difference, the nickel-titanium alloy coil continuously drives the active disk and the driven disk to rotate, and at the same time, the driven disk drives the rotating shaft to rotate, so that the DC generator generates electricity and stores the generated DC electricity in the battery. Through the cooperation of the thermal energy conversion mechanism, the heat generated by the cooling water with a higher temperature after use is converted into kinetic energy and then into electrical energy, thereby reducing the energy consumption of the equipment and the cost of the production enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 It is a three-dimensional picture of the whole;

[0017] Figure 2 It is a cross-sectional view of the tank;

[0018] Figure 3 It is a three-dimensional enlarged diagram of the structure of the heat energy conversion mechanism;

[0019] Figure 4 It is a sectional top view of the tank bottom;

[0020] Legend:

[0021] 1. Tank body; 3. Spiral cooling channel; 4. Liquid inlet pipe; 5. Water pump; 6. Base; 7. Hot water tank; 8. Liquid outlet pipe; 9. Cold water tank; 10. Connecting pipe; 11. Fixed block; 12. Active disk; 13. Support plate; 14. Rotating shaft; 15. Driven disk; 16. DC generator; 17. Nitinol coil; 18. Water suction pipe; 19. Refrigeration pipe; 20. Battery; 21. Baffle; 22. First stirring shaft; 23. Second stirring shaft; 24. First spiral stirring blade; 25. Second spiral stirring blade; 26. Driving motor; 27. Active gear; 28. Driven gear; 29. ​​Hollow disk; 30. Leakage hole; 31. Material adding pipe; 32. Discharge pipe; 33. Valve; 34. Support leg; 35. Nitric acid adding pipe; A. Thermal energy conversion mechanism. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Specific examples are given below.

[0024] See also Figure 1-Figure 4 The utility model discloses a nitration reaction device, comprising a tank body 1, a spiral cooling channel 3 is provided in the shell of the tank body 1, a liquid inlet pipe 4 is fixedly provided on one side of the top of the outer wall circumference of the tank body 1, one end of the liquid inlet pipe 4 passes through the spiral cooling channel 3, a water pump 5 is provided on one side of the bottom end of the tank body 1, and the other end of the liquid inlet pipe 4 is fixedly connected to the water outlet position of the water pump 5, a base 6 is provided on one side of the tank body 1, a hot water tank 7 is fixedly provided on one side of the top end of the base 6, a liquid outlet pipe 8 is fixedly provided on one side of the bottom of the outer wall circumference of the tank body 1, one end of the liquid outlet pipe 8 passes through the spiral cooling channel 3, and the other end of the liquid outlet pipe 8 is fixed and passed through on one side of the hot water tank 7, a cold water tank 9 is fixedly provided on one side of the top end of the base 6, and the cold water tank 9 is connected to the hot water tank 7 through a connecting pipe 10;

[0025] A heat energy conversion mechanism A is arranged at the top of the base 6, and the heat energy conversion mechanism A includes two groups of fixed blocks 11, and the two groups of fixed blocks 11 are respectively fixedly arranged at the center tops of the opposite surfaces of the outer walls of the hot water tank 7 and the cold water tank 9, and an active disk 12 is arranged on one side of the fixed block 11 through a rotating rod, and a V-shaped groove is provided on the circumferential surface of the active disk 12. Two groups of support plates 13 are fixedly arranged on the top of the base 6 in a mirror-image manner, and the top of the support plate 13 is rotated through a bearing and a rotating shaft 14 is provided through it. Driven disks 15 are fixedly arranged on the opposite surfaces of the two groups of rotating shafts 14, and a V-shaped groove is provided on the circumferential surface of the driven disk 15. One side of the support plate 13 is fixedly arranged A DC generator 16 is fixedly arranged on the fixed frame, and a nickel-titanium alloy coil 17 is installed on the transmission sleeves of the two groups of active disks 12 and the two groups of driven disks 15. The water suction port position of the water pump 5 is connected with the cold water tank 9 through the water suction pipe 18. An array of refrigeration pipes 19 is fixedly installed between the bottom of the opposite inner wall of the cold water tank 9. A battery 20 is fixedly arranged on one side of the top of the base 6. The input end of the battery 20 is electrically connected to the output end of the two groups of DC generators 16 through wires. When working, in order to recover the large amount of heat generated by the nitration reaction device, the water pump 5 is first started during the mixing and stirring process to pump the cooling water in the cold water tank 9 into the liquid inlet pipe 4 through the water suction pipe 18, and then The cooling water flows into the spiral cooling channel 3, absorbing the heat of the tank body 1 shell and taking it away. The cooling water with increased temperature then enters the hot water tank 7 through the liquid outlet pipe 8. The cooling water with higher temperature contacts the nickel-titanium alloy coil 17 on the active disk 12 above the hot water tank 7. Since the nickel-titanium alloy coil 17 is a shape memory alloy, its initial state is a straight line. After it contacts the hot cooling water, it quickly deforms and recovers to the straight line state. Since the nickel-titanium alloy coil 17 is sleeved on two sets of active disks 12 and two sets of driven disks 15, it cannot recover to the straight line state. At the same time, a torque is generated to drive the active disk 12 to rotate, and at the same time, the two sets of driven disks 15 and the active disk above another cold water tank 9 are driven. The disk 12 rotates, and the refrigeration pipe 19 is opened to cool the cooling water in the cold water tank 9. The nickel-titanium alloy coil 17 rotating on the active disk 12 above the cold water tank 9 contacts the cooling water after refrigeration, so that the nickel-titanium alloy coil 17 is cooled. Under the action of the temperature difference, the nickel-titanium alloy coil 17 continuously drives the active disk 12 and the driven disk 15 to rotate, and at the same time, the driven disk 15 drives the rotating shaft 14 to rotate, so that the DC generator 16 generates electricity and stores the generated DC electricity in the battery 20. Through the cooperation of the heat energy conversion mechanism A, the heat generated by the cooling water with a higher temperature after use is converted into kinetic energy and then converted into electrical energy, thereby reducing the energy consumption of the equipment and reducing the cost of the production enterprise.

[0026] Furthermore, a baffle 21 is fixedly provided at the bottom end of the inner part of the tank body 1, and a first stirring shaft 22 and a second stirring shaft 23 are rotatably provided at the inner bottom end of the tank body 1 in a mirror-image manner through bearings, and both are rotatably provided through the baffle 21 through bearings, and a first spiral stirring blade 24 and a second spiral stirring blade 25 are fixedly provided on the circumferential surfaces of the first stirring shaft 22 and the second stirring shaft 23, respectively, and a driving motor 26 is fixedly provided on one side of the bottom end of the tank body 1 through a fixing frame, and the first stirring shaft 22 rotates and penetrates to the outer bottom end of the tank body 1, and the output end of the driving motor 26 is fixedly connected to the bottom end of the first stirring shaft 22 through a coupling, and a driving gear 27 and a driven gear 28 are fixedly provided on the circumferential surfaces of the first stirring shaft 22 and the second stirring shaft 23 located between the bottom end of the baffle 21 and the inner bottom end of the tank body 1, and the teeth of the two are meshed with each other;

[0027] A hollow disk 29 is fixedly provided at the top of the inner part of the tank body 1, and an array of leakage holes 30 are opened at the bottom end of the hollow disk 29 in a circular array. A material adding pipe 31 is fixedly provided at the center of the top end of the tank body 1, and the bottom end of the material adding pipe 31 passes through the internal setting of the tank body 1. A nitric acid adding pipe 35 is fixedly provided on one side of the top end of the tank body 1, and the bottom end of the nitric acid adding pipe 35 is connected through the hollow disk 29. A discharge pipe 32 is fixedly provided on one side of the bottom end of the tank body 1, and the discharge pipe 32 passes through the top end of the baffle 21. A valve 33 is fixedly assembled on the discharge pipe 32. Three groups of supporting legs 34 are fixedly provided at the bottom end of the tank body 1 in a circular array. When working, the staff first adds the material into the tank body 1 through the material adding pipe 31, and then adds the nitric acid The liquid is added into the hollow disk 29 through the nitric acid adding tube 35, and then the nitric acid liquid drips into the tank body 1 through the array leakage hole 30 to react with the material. At the same time, the staff starts the driving motor 26, and the first stirring shaft 22 drives the first spiral stirring blade 24 to rotate. At the same time, the first stirring shaft 22 drives the driving gear 27 to rotate, so that the driven gear 28 rotates, and the driven gear 28 drives the second stirring shaft 23 and the second spiral stirring blade 25 to rotate, and the first spiral stirring blade 24 and the second spiral stirring blade 25 rotate in opposite directions. The two continuously stir and mix the material in the tank body 1 with the nitric acid liquid, so that it moves upward and downward at the same time, thereby improving the mixing and stirring effect. After the reaction is completed, the staff opens the valve 33 to discharge the material through the discharge pipe 32 to the outside for centralized collection.

[0028] Working principle: First, the staff adds the material into the tank body 1 through the material adding tube 31, and then adds the nitric acid liquid into the hollow disk 29 through the nitric acid adding tube 35. The nitric acid liquid then drips into the tank body 1 through the array leakage holes 30 to react with the material. At the same time, the staff starts the driving motor 26, and the first stirring shaft 22 drives the first spiral stirring blade 24 to rotate. At the same time, the first stirring shaft 22 drives the driving gear 27 to rotate, so that the driven gear 28 rotates, and the driven gear 28 drives the second stirring shaft 23 and the second spiral stirring blade 25 to rotate, and the first spiral stirring blade 24 and the second spiral stirring blade The rotation directions of 25 are opposite, and the two continuously stir and mix the material in the tank body 1 with the nitric acid liquid, so that it moves upward and downward at the same time, thereby improving the mixing and stirring effect. After the reaction is completed, the staff opens the valve 33 to discharge the material through the discharge pipe 32 to the outside for centralized collection; in order to recover the large amount of heat generated by the nitration reaction device, firstly, during the mixing and stirring process, the water pump 5 is started to pump the cooling water in the cold water tank 9 into the liquid inlet pipe 4 through the water suction pipe 18, and then the cooling water enters the spiral cooling channel 3 to flow, absorbs the heat of the shell of the tank body 1 and takes it away, and then the cooling water with increased temperature enters through the liquid outlet pipe 8 When the hot water enters the hot water tank 7, the cooling water with a higher temperature contacts the nickel-titanium alloy coil 17 on the active disk 12 above the hot water tank 7. Since the nickel-titanium alloy coil 17 is a shape memory alloy, its initial state is a straight line. After it contacts the hot cooling water, it quickly deforms and recovers to a straight line state. Since the nickel-titanium alloy coil 17 is sleeved on two sets of active disks 12 and two sets of driven disks 15, it cannot recover to a straight line state. At the same time, a torque is generated to drive the active disk 12 to rotate, and at the same time, the two sets of driven disks 15 and the active disk 12 above the other cold water tank 9 are driven to rotate, and the refrigeration pipe 19 is opened to allow the cooling water in the cold water tank 9 to enter. The nickel-titanium alloy coil 17 rotating on the active disk 12 above the cold water tank 9 contacts the cooling water after refrigeration, so that the nickel-titanium alloy coil 17 is cooled. Under the action of the temperature difference, the nickel-titanium alloy coil 17 continuously drives the active disk 12 and the driven disk 15 to rotate, and the driven disk 15 drives the rotating shaft 14 to rotate, so that the DC generator 16 generates electricity and stores the generated DC electricity in the battery 20. Through the cooperation of the heat energy conversion mechanism A, the heat generated by the cooling water with a higher temperature after use is converted into kinetic energy and then into electrical energy, thereby reducing the energy consumption of the equipment and reducing the cost of the production enterprise.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A nitration reaction device, characterized in that: The invention comprises a tank body (1), wherein a spiral cooling channel (3) is provided in the shell of the tank body (1), a liquid inlet pipe (4) is fixedly provided on one side of the top of the circumferential surface of the outer wall of the tank body (1), one end of the liquid inlet pipe (4) passes through the spiral cooling channel (3), a water pump (5) is provided on one side of the bottom end of the tank body (1), the other end of the liquid inlet pipe (4) is fixedly connected to the water outlet of the water pump (5), and a base (6) is provided on one side of the tank body (1), the base A hot water tank (7) is fixedly arranged on one side of the top end of the base (6); a liquid outlet pipe (8) is fixedly arranged on one side of the bottom of the outer circumferential surface of the tank body (1); one end of the liquid outlet pipe (8) passes through the spiral cooling channel (3); the other end of the liquid outlet pipe (8) is fixedly arranged and passes through one side of the hot water tank (7); a cold water tank (9) is fixedly arranged on one side of the top end of the base (6); the cold water tank (9) and the hot water tank (7) are connected through a connecting pipe (10); A heat energy conversion mechanism (A) is arranged at the top of the base (6), and the heat energy conversion mechanism (A) comprises two groups of fixed blocks (11), and the two groups of fixed blocks (11) are respectively fixedly arranged at the top of the center of the opposite surfaces of the outer walls of the hot water tank (7) and the cold water tank (9), and an active disk (12) is rotatably arranged on one side of the fixed block (11) through a rotating rod, and a V-shaped groove is provided on the circumferential surface of the active disk (12), and two groups of support plates (13) are fixedly arranged at the top of the base (6) in a mirror-image manner, and the top of the support plate (13) is rotated through a bearing and is penetrated by a rotating shaft. A shaft (14), a driven disk (15) is fixedly arranged on the opposite surfaces of the two sets of rotating shafts (14), a V-shaped groove is opened on the circumferential surface of the driven disk (15), a DC generator (16) is fixedly arranged on one side of the support plate (13) through a fixing frame, a nickel-titanium alloy coil (17) is installed on the transmission sleeves of the two sets of active disks (12) and the two sets of driven disks (15), the water suction port position of the water pump (5) is connected to the cold water tank (9) through a water suction pipe (18), and a plurality of refrigeration pipes (19) are fixedly installed between the bottoms of the opposite surfaces of the inner wall of the cold water tank (9).

2. A nitration reaction device according to claim 1, characterized in that: A storage battery (20) is fixedly arranged on one side of the top end of the base (6), and the input end of the storage battery (20) is electrically connected to the output ends of the two sets of DC generators (16) via wires.

3. A nitration reaction device according to claim 1, characterized in that: A baffle (21) is fixedly arranged at a position closer to the bottom end of the tank body (1). A first stirring shaft (22) and a second stirring shaft (23) are rotatably arranged at the bottom end of the tank body (1) in a mirror-image manner through bearings, and both are rotatably arranged through the baffle (21) through bearings. A first spiral stirring blade (24) and a second spiral stirring blade (25) are fixedly arranged on the circumferential surfaces of the first stirring shaft (22) and the second stirring shaft (23). One side of the bottom end of the tank body (1) is A driving motor (26) is fixedly arranged on the fixed frame, the first stirring shaft (22) rotates and penetrates the outer bottom end of the tank body (1), the output end of the driving motor (26) is fixedly connected to the bottom end of the first stirring shaft (22) through a coupling, and a driving gear (27) and a driven gear (28) are fixedly arranged on the circumferential surface of the first stirring shaft (22) and the second stirring shaft (23) located between the bottom end of the baffle (21) and the inner bottom end of the tank body (1), respectively, and the teeth of the two gears are meshed with each other.

4. A nitration reaction device according to claim 1, characterized in that: A hollow disk (29) is fixedly arranged at the top of the interior of the tank body (1), and a plurality of leakage holes (30) are provided at the bottom of the hollow disk (29) in a circular array. A material addition pipe (31) is fixedly arranged at the center of the top of the tank body (1), and the bottom end of the material addition pipe (31) passes through the interior of the tank body (1). A nitric acid addition pipe (35) is fixedly arranged at one side of the top of the tank body (1), and the bottom end of the nitric acid addition pipe (35) is connected to the hollow disk (29).

5. A nitration reaction device according to claim 1, characterized in that: A discharge pipe (32) is fixedly provided on one side of the bottom end of the tank body (1), the discharge pipe (32) passes through to the top end of the baffle (21), and a valve (33) is fixedly mounted on the discharge pipe (32).

6. A nitration reaction device according to claim 1, characterized in that: Three groups of supporting legs (34) are fixedly arranged in a circular array at the bottom end of the tank body (1).

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