Circulating water cooling device for continuous nitration reactor

Abstract

The utility model discloses a circulating water cooling device for a continuous nitration reactor. The circulating water cooling device comprises a reactor, a rotating rod and a longitudinal stirring rod, a water tank is arranged at the bottom of the reactor; a motor A is arranged at the top of the reactor; the rotating rod is arranged in the reactor and is positioned at the output end of the motor A; the continuous cooling of the reactor is realized through the circulating water pump, the water inlet pipe, the circulating cooling water pipe and the water outlet pipe of the water-cooling circulating mechanism, the nitration reaction temperature can be effectively controlled, and the phenomenon that the reaction is out of control or the product quality is influenced due to overhigh temperature is avoided; the motor A drives the rotating rod, the supporting rod, the longitudinal stirring rod and the transverse stirring rod to cooperatively work, so that three-dimensional stirring of materials in the reactor is realized, the materials are mixed more uniformly, the rate and the fullness of nitration reaction are remarkably improved, and the product quality and the production efficiency are favorably improved; and automatic discharging of the materials is achieved through cooperation of a motor B, a driving rod and a spiral blade of the discharging mechanism.

Description

Technical Field

[0001] This utility model relates to the field of continuous nitrification reactor technology, specifically a circulating water cooling device for a continuous nitrification reactor. Background Technology

[0002] Nitration is a reaction in which a nitro group is introduced into an organic compound molecule. The nitro group can bond with a carbon atom in an organic compound to form a nitro compound; it can also bond with an oxygen atom to form a nitro ester; or it can bond with a nitrogen atom to form nitrosamines, etc.

[0003] In existing technologies, most continuous nitration reactors use simple air cooling or single-use water cooling for cooling. Air cooling has low heat dissipation efficiency and cannot quickly remove large amounts of reaction heat. For vigorous and exothermic nitration reactions, it is difficult to control the temperature within a suitable range. Single-use water cooling results in the direct discharge of water after use, leading to serious waste of water resources. Furthermore, the cooling is uneven, with significant temperature differences in different parts of the reactor. This often causes excessively high and fluctuating temperatures during the nitration process, which can easily lead to runaway reactions. This not only results in inconsistent product quality but also poses significant safety hazards, seriously affecting the continuity and stability of production and increasing production costs and risks.

[0004] In view of this, we introduce a circulating water cooling device for continuous nitrification reactors. Utility Model Content

[0005] The purpose of this invention is to provide a circulating water cooling device for a continuous nitrification reactor to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a circulating water cooling device for a continuous nitrification reactor, comprising: a reactor, a rotating rod, and a longitudinal stirring rod;

[0007] A water tank is installed at the bottom of the reactor, and a motor A is installed at the top of the reactor. The motor A is bolted to the top of the reactor.

[0008] The rotating rod is installed inside the reactor and located at the output end of motor A. Support rods are evenly spaced on the surface of the rotating rod, and the support rods are fixedly connected to the rotating rod.

[0009] The longitudinal stirring rod is disposed on one side of the surface of the support rod and is fixedly disposed therebetween. A transverse stirring rod is disposed on the surface of the support rod on one side of the longitudinal stirring rod and is fixedly disposed therebetween.

[0010] A water-cooling circulation mechanism is provided between the reactor and the water tank. The circulating water pump, inlet pipe and circulating cooling water pipe of the water-cooling circulation mechanism are used in combination to cool the reactor.

[0011] Preferably, the water-cooling circulation mechanism includes an outlet pipe connected to one end of a circulating cooling water pipe, a circulating water pump connected to one side of the water tank, an inlet pipe connected to the outlet end of the circulating water pump, and the circulating cooling water pipe connected inside the reactor. The circulating cooling water pipe facilitates the cooling of the heat generated during reactor operation, thereby keeping the reactor at a normal operating temperature. One end of the circulating cooling water pipe is connected to the inlet pipe, and one end of the outlet pipe extends into the interior of the water tank, allowing water to enter the interior of the water tank and form a circulation.

[0012] Preferably, a water storage pipe is connected to one side of the water tank. The water storage pipe can replenish the water source when the water in the water tank is insufficient, ensuring the continuous and stable operation of the water cooling circulation system. It can also drain the water in the water tank and replace it with a new water source.

[0013] Preferably, a discharge pipe is connected to one side of the bottom of the reactor, and a valve is connected to the surface of the discharge pipe to control the opening and closing of the discharge pipe.

[0014] Preferably, the reactor is equipped with a discharge mechanism. The motor B of the discharge mechanism drives the drive rod and the spiral blade to rotate, so that the spiral blade carries the material out of the discharge pipe.

[0015] Preferably, the discharge mechanism includes a protective cover connected to the surface of motor B. The protective cover can protect motor B from material corrosion and external impact, and extend the service life of motor B. One side of the protective cover is connected to the bottom of the reactor. The drive rod is connected to the output end of motor B. The spiral blade is connected to the surface of the drive rod. The drive rod and the spiral blade are integrally formed.

[0016] Preferably, a feed pipe is connected to one side of the top of the reactor, and a threaded cap is connected to the surface of the feed pipe. The threaded cap and the feed pipe are connected by a thread, which facilitates installation and removal.

[0017] Preferably, the inlet end of the circulating water pump is connected to a suction pipe, and the suction pipe is connected inside the water tank. The suction pipe allows the circulating water pump to draw water from inside the water tank when it starts working.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] (1) The reactor is continuously cooled and cooled by the circulating water pump, inlet pipe, circulating cooling water pipe and outlet pipe of the water cooling circulation mechanism. This can effectively control the nitration reaction temperature, ensure that the reaction is carried out under suitable temperature conditions, avoid the reaction from getting out of control or affecting product quality due to excessive temperature, and improve the safety and stability of equipment operation.

[0020] (2) By using motor A to drive the rotating rod, support rod, longitudinal stirring rod and transverse stirring rod to work together, the material in the reactor is stirred in three dimensions, making the material mix more uniform, significantly improving the rate and degree of nitration reaction, and helping to improve product quality and production efficiency.

[0021] (3) The addition of materials is facilitated by the setting of the feed pipe and the threaded cover, and the threaded cover can effectively prevent material leakage and impurities from entering; the discharge mechanism realizes the automatic discharge of materials through the cooperation of motor B, drive rod and spiral blade, which is simple and convenient to operate, improves the automation level of the production process and reduces the tediousness of manual operation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the water outlet pipe, longitudinal stirring rod, and transverse stirring rod of this utility model.

[0024] Figure 3 This is a schematic diagram of the circulating cooling water pipe of this utility model;

[0025] Figure 4 This is a schematic diagram of the material discharge mechanism of this utility model.

[0026] In the diagram: 1. Reactor; 2. Motor A; 3. Feed pipe; 4. Threaded cap; 5. Rotating rod; 6. Support rod; 7. Circulating cooling water pipe; 8. Water inlet pipe; 9. Circulating water pump; 11. Water tank; 12. Water storage pipe; 13. Discharge pipe; 14. Valve; 15. Water outlet pipe; 16. Longitudinal stirring rod; 17. Transverse stirring rod; 18. Motor B; 19. Protective cover; 20. Spiral blade; 21. Drive rod; 22. Suction pipe. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-4 This utility model provides a technical solution: a circulating water cooling device for a continuous nitrification reactor, comprising: a reactor 1, a water tank 11 at the bottom of the reactor 1, and a motor A2 at the top of the reactor 1;

[0029] Rotating rod 5 is installed inside reactor 1 and located at the output end of motor A2. Support rods 6 are evenly spaced on the surface of rotating rod 5.

[0030] A longitudinal stirring rod 16 is disposed on one side of the surface of a support rod 6, and a transverse stirring rod 17 is disposed on the surface of the support rod 6 on one side of the longitudinal stirring rod 16.

[0031] A water-cooling circulation mechanism is provided between the reactor 1 and the water tank 11. The circulating water pump 9, the inlet pipe 8 and the circulating cooling water pipe 7 of the water-cooling circulation mechanism are used in combination to cool the reactor 1.

[0032] The water-cooling circulation mechanism includes a circulating cooling water pipe 7 with one end connected to an outlet pipe 15, a circulating water pump 9 connected to one side of a water tank 11, an inlet pipe 8 connected to the outlet end of the circulating water pump 9, and the circulating cooling water pipe 7 connected to the inside of the reactor 1. The circulating cooling water pipe 7 facilitates the cooling of the heat generated by the reactor 1 during operation, thereby keeping the reactor 1 at a normal operating temperature. One end of the circulating cooling water pipe 7 is connected to the inlet pipe 8, and one end of the outlet pipe 15 extends into the inside of the water tank 11, allowing water to enter the inside of the water tank 11 and form a circulation.

[0033] A water storage pipe 12 is connected to one side of the water tank 11. The water storage pipe 12 can replenish water when the water in the water tank 11 is insufficient, ensuring the continuous and stable operation of the water cooling circulation system. It can also drain the water in the water tank 11 and replace it with a new water source.

[0034] A discharge pipe 13 is connected to one side of the bottom of the reactor 1, and a valve 14 is connected to the surface of the discharge pipe 13. The valve 14 is used to control the opening and closing of the discharge pipe 13.

[0035] The reactor 1 is equipped with a discharge mechanism. The motor B18 of the discharge mechanism drives the drive rod 21 and the spiral blade 20 to rotate, so that the spiral blade 20 carries the material out of the discharge pipe 13.

[0036] The discharge mechanism includes a protective cover 19 connected to the surface of the motor B18. The protective cover 19 can protect the motor B18 from material corrosion and external collisions, and extend the service life of the motor B18. One side of the protective cover 19 is connected to the bottom of the reactor 1. The drive rod 21 is connected to the output end of the motor B18. The spiral blade 20 is connected to the surface of the drive rod 21. The drive rod 21 and the spiral blade 20 are integrally formed.

[0037] The top side of the reactor 1 is connected to a feed pipe 3, and a threaded cap 4 is connected to the surface of the feed pipe 3. The threaded cap 4 and the feed pipe 3 are connected by threads, which facilitates installation and removal.

[0038] The inlet end of the circulating water pump 9 is connected to a suction pipe 22, which is connected inside the water tank 11. The suction pipe 22 allows the circulating water pump 9 to draw water from inside the water tank 11 when it starts working.

[0039] Specifically, when using it, open the threaded cap 4 on the feed pipe 3 at the top of the reactor 1, and pour the material participating in the nitration reaction into the reactor 1 through the feed pipe 3. The threaded cap 4 is designed to close the feed pipe 3 after feeding to prevent material leakage and external impurities from entering the reactor 1, thus ensuring the stability of the reaction environment.

[0040] The motor A2 at the top of reactor 1 is started. The output shaft of motor A2 drives the rotating rod 5 to rotate, and the support rods 6, which are evenly spaced on the surface of the rotating rod 5, rotate accordingly. The longitudinal stirring rod 16 and the transverse stirring rod 17, which are installed on the surface of the support rods 6, also rotate synchronously. The longitudinal stirring rod 16 and the transverse stirring rod 17 work together. During the rotation, the longitudinal stirring rod 16 tumbles the material longitudinally, causing the material at the bottom to move upward and the material at the top to move downward. The transverse stirring rod 17 stirs the material horizontally, promoting thorough mixing of the material in reactor 1. Through this three-dimensional stirring method, the various materials participating in the nitration reaction can be evenly distributed, increasing the contact area between the materials and improving the reaction rate and the degree of reaction.

[0041] During the nitration reaction, the temperature inside reactor 1 rises due to the exothermic reaction. At this time, the water cooling circulation mechanism starts working, and the circulating water pump 9 on one side of the water tank 11 starts. The circulating water pump 9 draws water from the water tank 11 through the suction pipe 22. After being pressurized by the circulating water pump 9, the water enters the circulating cooling water pipe 7 through the inlet pipe 8. The circulating cooling water pipe 7 is installed inside the reactor 1. The water flows in the circulating cooling water pipe 7, absorbing the heat generated by the reaction in the reactor 1, thereby reducing the temperature inside the reactor 1 and ensuring that the nitration reaction takes place within a suitable temperature range. The hot water after absorbing heat flows back to the water tank 11 from the other end of the circulating cooling water pipe 7 through the outlet pipe 15, completing one water cooling cycle. The water storage pipe 12 connected to one side of the water tank 11 can replenish the water source when the water in the water tank 11 is insufficient, ensuring the continuous and stable operation of the water cooling circulation system.

[0042] After the nitration reaction is completed, the discharge mechanism is started. The motor B18 in the discharge mechanism at the bottom of reactor 1 starts. The output end of motor B18 drives the drive rod 21 to rotate. The spiral blades 20 on the surface of the drive rod 21 rotate accordingly. During the rotation, the spiral blades 20 push the material at the bottom of reactor 1 along the discharge pipe 13 and open the valve 14 on the surface of the discharge pipe 13. The material is discharged from reactor 1 through the discharge pipe 13 under the push of the spiral blades 20. The protective cover 19 connected to the surface of motor B18 can protect motor B18 from material corrosion and external collisions, and extend the service life of motor B18.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A circulating water cooling device for a continuous nitration reactor, characterized by, include: A reactor (1) is provided with a water tank (11) at the bottom and a motor A (2) is provided at the top of the reactor (1). Rotary rod (5), the rotating rod (5) is set inside the reactor (1) and located at the output end of motor A (2), and the surface of the rotating rod (5) is provided with support rods (6) at equal intervals; A longitudinal stirring rod (16) is provided on one side of the surface of a support rod (6), and a transverse stirring rod (17) is provided on one side of the surface of the support rod (6) located on the longitudinal stirring rod (16). A water cooling circulation mechanism is provided between the reactor (1) and the water tank (11). The circulating water pump (9), the inlet pipe (8) and the circulating cooling water pipe (7) of the water cooling circulation mechanism are used in combination to cool the reactor (1).

2. A circulating water cooling device for a continuous nitration reactor according to claim 1, characterized in that, The water cooling circulation mechanism includes a circulating cooling water pipe (7) with one end connected to an outlet pipe (15), a circulating water pump (9) connected to one side of a water tank (11), an inlet pipe (8) connected to the outlet end of the circulating water pump (9), the circulating cooling water pipe (7) connected to the inside of the reactor (1), one end of the circulating cooling water pipe (7) connected to the inlet pipe (8), and one end of the outlet pipe (15) extending into the inside of the water tank (11).

3. A circulating water cooling device for a continuous nitration reactor according to claim 2, characterized in that, A water storage pipe (12) is connected to one side of the water tank (11).

4. A circulating water cooling device for a continuous nitration reactor according to claim 1, characterized in that, The bottom side of the reactor (1) is connected to a discharge pipe (13), and a valve (14) is connected to the surface of the discharge pipe (13).

5. A circulating water cooling device for a continuous nitration reactor according to claim 1, characterized in that, The reactor (1) is equipped with a discharge mechanism. The motor B (18) of the discharge mechanism drives the drive rod (21) and the spiral blade (20) to rotate, so that the spiral blade (20) drives the material to be discharged from the discharge pipe (13).

6. A water cooling device for a continuous nitration reactor according to claim 5, wherein The discharge mechanism includes a protective cover (19) connected to the surface of the motor B (18), one side of the protective cover (19) being connected to the bottom of the reactor (1), the drive rod (21) being connected to the output end of the motor B (18), and the spiral blade (20) being connected to the surface of the drive rod (21).

7. A circulating water cooling device for a continuous nitration reactor according to claim 1, characterized in that, A feed pipe (3) is connected to the top side of the reactor (1), and a threaded cap (4) is connected to the surface of the feed pipe (3).

8. A circulating water cooling device for a continuous nitration reactor according to claim 2, characterized in that, The inlet end of the circulating water pump (9) is connected to a suction pipe (22), and the suction pipe (22) is connected inside the water tank (11).

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