Sodium 5-sulfonate reactor for efficient sulfonation reaction

Abstract

The utility model relates to the technical field of chemical reaction equipment, and discloses a sodium 5-sulfonate reactor for efficient sulfonation reaction, which comprises a reactor body, a plurality of lugs are fixedly mounted on the outer side of the reactor body, a heating coil is further fixedly mounted on the reactor body, and two ends of the heating coil are respectively connected with an external heating medium circulating pump. A plurality of feeding pipes are fixedly mounted on the reactor body. A plurality of turbulent flow mechanisms are arranged on the inner side of a reactor body, each turbulent flow mechanism is composed of a longitudinal baffle, two transverse baffles on one side of the longitudinal baffle, a first connecting base, a second connecting base and the like, and a first U-shaped flow guide groove, a second U-shaped flow guide groove and a linear flow guide groove are formed in the longitudinal baffle and the two transverse baffles; therefore, the first connecting base, the first flow guide plate, the second connecting base and the second flow guide plate are matched, so that part of the heating medium in the heating coil flows through the first U-shaped flow guide groove, the second U-shaped flow guide groove and the linear flow guide groove.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical reaction equipment, in particular to a 5-sulfonate reactor for efficient sulfonation reaction. Background Art

[0002] The sulfonation reaction of 5-aminobenzenesulfonic acid uses benzene as the starting material. First, nitrobenzene is prepared through a nitration reaction. Nitrobenzene undergoes a reduction reaction under the action of iron and hydrochloric acid to generate aniline. Then, aniline reacts with concentrated sulfuric acid to undergo a sulfonation reaction to generate 5-aminobenzenesulfonic acid;

[0003] In industrial production, the sulfonation reaction of 5-sulfonate is usually carried out in a reactor, and a reaction kettle with a stirring device, a heating and temperature control system is mostly used. However, on the one hand, the existing reaction equipment is heated from the outside of the reaction kettle, resulting in uneven temperature distribution inside the reaction kettle. In this heating mode, heat needs to be conducted through the wall of the reaction kettle to reach the internal reactants, and there is a large energy loss in the heat transfer process. Moreover, due to the large internal space of the reaction kettle, it is difficult to evenly disperse the heat during the transfer process, making the reactants in different internal regions unevenly heated. The reactants near the wall of the reaction kettle may undergo side reactions due to excessive heating, while some reactants far from the wall of the reaction kettle react slowly due to insufficient heating, and the overall heating efficiency is low, seriously affecting the production efficiency and product quality of 5-sulfonate. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a 5-sulfonate reactor for efficient sulfonation reaction, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A 5-sulfonate reactor for efficient sulfonation reaction includes a reactor body. A plurality of ear seats are fixedly installed on the outer side of the reactor body. The reactor body is also fixedly installed with a heating coil, and both ends of the heating coil are respectively connected to an external heating medium circulation pump. A plurality of feed pipes are fixedly installed on the reactor body. A motor is fixedly installed at the middle position of the reactor body, and the motor is electrically connected to an external main controller through a cable. An isolation fluid pressure tank is fixedly installed near the motor on the reactor body. A plurality of flow disturbance mechanisms are fixedly installed inside the reactor body. The flow disturbance mechanism includes a longitudinal baffle. A plurality of transverse baffles are fixedly installed on one side of the longitudinal baffle. A first connection seat and a second connection seat are respectively fixedly installed on the front side and the rear side of the longitudinal baffle.

[0007] As a further preferred embodiment of the present utility model, a stirring shaft is fixedly installed at the output end of the motor, and one end of the stirring shaft away from the motor extends into the reactor body and is fixedly installed with a plurality of stirring blades. The motor drives the stirring blades to rotate in the reactor body through the stirring shaft, which can improve the reaction efficiency of the reactants and the sulfonating agent.

[0008] As a further preferred embodiment of the present utility model, first U-shaped diversion channels are respectively opened at the upper and lower parts inside the longitudinal baffle, and a linear diversion channel is opened inside the longitudinal baffle between the two transverse baffles. A first liquid inlet is opened at the rear side of one of the first U-shaped diversion channels, and a first liquid outlet is opened at the front side inside the other first U-shaped diversion channel.

[0009] As a further preferred embodiment of the present utility model, second U-shaped diversion channels are respectively opened inside the two transverse baffles, and the two second U-shaped diversion channels are communicated through the linear diversion channel. One end of each of the two second U-shaped diversion channels away from the linear diversion channel is also respectively communicated with one of the first U-shaped diversion channels. Two transverse baffles are arranged on one side of the longitudinal baffle, and first U-shaped diversion channels, second U-shaped diversion channels and linear diversion channels are opened inside the longitudinal baffle and the transverse baffles, which can enable the heating medium to flow directionally inside the longitudinal baffle and the transverse baffles, and improve the heating efficiency of the reactants in the reactor body by the longitudinal baffle and the transverse baffles.

[0010] As a further preferred embodiment of the present utility model, a plurality of contact grooves are opened on the front side of the longitudinal baffle and the transverse baffle. By arranging a plurality of contact grooves on the surface of the longitudinal baffle facing the reactants, the fluid path can be refined, the contact area between the reactants and the longitudinal baffle and the transverse baffle can be increased, and the mass transfer and heat transfer effects can be enhanced.

[0011] As a further preferred embodiment of the present utility model, a first diversion plate is fixedly installed on one side of the first connecting seat, a second liquid outlet is opened on the other side of the first connecting seat, and the inner cavity of the first connecting seat is communicated with the cavity of one of the first U-shaped diversion channels through the second liquid outlet and the first liquid outlet. The side of the first connecting seat where the first diversion plate is fixedly installed is fixedly installed in the reactor body and is communicated with the inner cavity of the heating coil through a through groove on one side of the reactor body. The cooperation of the first connecting seat and the first diversion plate can enable the heating medium flowing through the longitudinal baffle and the transverse baffle to re-enter the heating coil. Moreover, the arrangement of the first diversion plate can prevent the heating medium in the heating coil from entering the first connecting seat, and can accelerate the outflow of the heating medium in the first connecting seat by means of the flow rate of the heating medium in the heating coil.

[0012] As a further preferred embodiment of the present utility model, a second flow guide plate is fixedly installed on one side of the second connection seat, a second liquid inlet is provided on the other side of the second connection seat, and the inner cavity of the second connection seat is communicated with the inner cavity of one of the first U-shaped flow guide grooves through the second liquid inlet and the first liquid inlet. The side of the second connection seat where the second flow guide plate is fixedly installed is fixedly installed inside the reactor body and is communicated with the inner cavity of the heating coil through a through groove on one side of the reactor body. The arrangement of the second connection seat and the second flow guide plate can enable a part of the heating medium flowing in the heating coil to be guided into the second connection seat through the second flow guide plate, and enter the first U-shaped flow guide groove through the second liquid inlet and the first liquid inlet, so that the first U-shaped flow guide groove, the second U-shaped flow guide groove, and the linear flow guide groove in the longitudinal baffle and the transverse baffle have heating medium flowing through, thereby accelerating the heating process of the reactants at the middle position inside the reactor body.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] In the present utility model, a plurality of flow disturbing mechanisms are arranged inside the reactor body, and the flow disturbing mechanism is composed of a longitudinal baffle, two transverse baffles on one side of the longitudinal baffle, a first connection seat, a second connection seat and other structures. The longitudinal baffle and the two transverse baffles are provided with a first U-shaped flow guide groove, a second U-shaped flow guide groove and a linear flow guide groove. Thus, in cooperation with the first connection seat, the first flow guide plate, the second connection seat and the second flow guide plate, a part of the heating medium in the heating coil flows through the first U-shaped flow guide groove, the second U-shaped flow guide groove and the linear flow guide groove, so as to improve the heating effect on the reactants at the middle position inside the reactor body, thereby improving the reaction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the main structure of the present utility model;

[0016] Figure 2 is a rear view of the flow disturbing mechanism of the present utility model;

[0017] Figure 3 is a front view of the flow disturbing mechanism of the present utility model;

[0018] Figure 4 is a first cross-sectional view of the longitudinal baffle and the transverse baffle of the present utility model;

[0019] Figure 5 is a second cross-sectional view of the longitudinal baffle and the transverse baffle of the present utility model;

[0020] Figure 6 is a cross-sectional view of the first connection seat of the present utility model;

[0021] Figure 7 is a cross-sectional view of the second connection seat of the present utility model.

[0022] In the figure: 1. Reactor body; 2. Ear seat; 3. Feed pipe; 4. Motor; 5. Isolation fluid pressure tank; 6. Stirring shaft; 7. Stirring paddle; 8. Heating coil; 9. Turbulence mechanism; 10. Longitudinal baffle; 11. Transverse baffle; 12. First connecting seat; 13. Second connecting seat; 14. Reinforcing rib; 15. First U-shaped diversion groove; 16. Second U-shaped diversion groove; 17. First liquid inlet; 18. Contact groove; 19. First liquid outlet; 20. First deflector; 21. Second liquid outlet; 22. Second deflector; 23. Second liquid inlet; 24. Linear diversion groove. Specific embodiments

[0023] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] As Figures 1-7 shown, a 5-sulfonate reactor for efficient sulfonation reaction provided by the present utility model includes a reactor body 1. A plurality of ear seats 2 are fixedly installed on the outer side of the reactor body 1. A heating coil 8 is also fixedly installed on the reactor body 1, and both ends of the heating coil 8 are respectively connected to an external heating medium circulation pump. A plurality of feed pipes 3 are fixedly installed on the reactor body 1. A motor 4 is also fixedly installed at the middle position on the reactor body 1, and the motor 4 is electrically connected to an external main controller through a cable. An isolation fluid pressure tank 5 is also fixedly installed near the motor 4 on the reactor body 1. A plurality of turbulence mechanisms 9 are fixedly installed inside the reactor body 1. The turbulence mechanism 9 includes a longitudinal baffle 10. A plurality of transverse baffles 11 are fixedly installed on one side of the longitudinal baffle 10. A first connecting seat 12 and a second connecting seat 13 are respectively fixedly installed on the front side and the rear side of the longitudinal baffle 10.

[0025] As Figure 1 The output end of the motor 4 is fixedly installed with a stirring shaft 6, and one end of the stirring shaft 6 away from the motor 4 extends into the reactor body 1 and is fixedly installed with a plurality of stirring paddles 7. The motor 4 drives the stirring paddles 7 to rotate inside the reactor body 1 through the stirring shaft 6, which can improve the reaction efficiency of the reactants and the sulfonating agent.

[0026] As Figures 1-7As shown, first U-shaped diversion grooves 15 are provided both above and below the inner part of the longitudinal baffle 10. A linear diversion groove 24 is provided inside the longitudinal baffle 10 between the two transverse baffles 11. A first liquid inlet 17 is provided at the rear side of one of the first U-shaped diversion grooves 15, and a first liquid outlet 19 is provided at the front side inside the other first U-shaped diversion groove 15. Second U-shaped diversion grooves 16 are respectively provided inside the two transverse baffles 11, and the two second U-shaped diversion grooves 16 are communicated through the linear diversion groove 24. One ends of the two second U-shaped diversion grooves 16 far away from the linear diversion groove 24 are respectively communicated with one of the first U-shaped diversion grooves 15. Two transverse baffles 11 are provided on one side of the longitudinal baffle 10, and first U-shaped diversion grooves 15, second U-shaped diversion grooves 16 and linear diversion groove 24 are provided inside the longitudinal baffle 10 and the transverse baffles 11, which can enable the heating medium to flow in a guided manner inside the longitudinal baffle 10 and the transverse baffles 11, improving the heating efficiency of the longitudinal baffle 10 and the transverse baffles 11 for the reactants inside the reactor body 1. A plurality of contact grooves 18 are provided on the front sides of the longitudinal baffle 10 and the transverse baffles 11. A plurality of contact grooves 18 are provided on the side of the longitudinal baffle 10 facing the reactants, which can refine the fluid path, increase the contact area between the reactants and the longitudinal baffle 10 and the transverse baffles 11, and strengthen the mass transfer and heat transfer effects. A first guide plate 20 is fixedly installed on one side of the first connection seat 12. A second liquid outlet 21 is provided on the other side of the first connection seat 12. The inner cavity of the first connection seat 12 is communicated with the cavity of one of the first U-shaped diversion grooves 15 through the second liquid outlet 21 and the first liquid outlet 19. The side of the first connection seat 12 where the first guide plate 20 is fixedly installed is fixedly installed inside the reactor body 1 and is communicated with the inner cavity of the heating coil 8 through a through groove on one side of the reactor body 1. The cooperation of the first connection seat 12 and the first guide plate 20 can enable the heating medium flowing inside the longitudinal baffle 10 and the transverse baffles 11 to re-enter the heating coil 8. The setting of the first guide plate 20 can prevent the heating medium inside the heating coil 8 from entering the first connection seat 12, and can accelerate the outflow of the heating medium inside the first connection seat 12 by means of the flow rate of the heating medium inside the heating coil 8. A second guide plate 22 is fixedly installed on one side of the second connection seat 13. A second liquid inlet 23 is provided on the other side of the second connection seat 13. The inner cavity of the second connection seat 13 is communicated with the inner cavity of one of the first U-shaped diversion grooves 15 through the second liquid inlet 23 and the first liquid inlet 17. The side of the second connection seat 13 where the second guide plate 22 is fixedly installed is fixedly installed inside the reactor body 1 and is communicated with the inner cavity of the heating coil 8 through a through groove on one side of the reactor body 1. The setting of the second connection seat 13 in cooperation with the second guide plate 22 can enable a part of the heating medium flowing inside the heating coil 8 to be guided into the second connection seat 13 through the second guide plate 22, and enter the first U-shaped diversion groove 15 through the second liquid inlet 23 and the first liquid inlet 17.As a result, the first U-shaped diversion channels 15, the second U-shaped diversion channels 16, and the linear diversion channels 24 in the longitudinal baffle 10 and the transverse baffle 11 have heating medium flowing through them, thereby accelerating the heating process of the reactants at the middle position inside the reactor body 1.

[0027] It should be noted that the present utility model is a 5-sulfonate reactor for efficient sulfonation reaction. Before the reaction starts, the reactants and the sulfonating agent are added into the reactor body 1 in proportion through the feed pipe 3. The external main controller is started, and the motor 4 is energized to operate. The output end thereof drives the stirring shaft 6 to rotate, and the stirring blades 7 on the stirring shaft 6 rotate in the reactor body 1 accordingly, so that the reactants and the sulfonating agent are fully mixed, and the reaction rate is accelerated;

[0028] Then, the external heating medium circulation pump is started to drive the heating medium to circulate in the heating coil 8. Part of the heating medium passes through the through groove on one side of the reactor body 1, is guided by the second diversion plate 22 on the second connecting seat 13, and enters the second liquid inlet 23 of the second connecting seat 13. Then, it sequentially enters the first U-shaped diversion channel 15 above the longitudinal baffle 10 through the first liquid inlet 17. Thus, the heating medium in the upper first U-shaped diversion channel 15 enters the second U-shaped diversion channel 16 in one of the transverse baffles 11, and then enters the second U-shaped diversion channel 16 in the other transverse baffle 11 through the linear diversion channel 24, and then flows into the first U-shaped diversion channel 15 below the longitudinal baffle 10. Then, the heating medium can heat the reactants at the middle position inside the reactor body 1, flows out from the first liquid outlet 19, enters the first connecting seat 12 through the second liquid outlet 21 of the first connecting seat 12, and returns to the heating coil 8 again under the action of the first diversion plate 20, so as to heat the reactants at the middle position inside the reactor body 1;

[0029] The reinforcing ribs 14 connecting the rear sides of the longitudinal baffle 10 and the transverse baffle 11 are also connected to the inner side of the reactor body 1, so that the structural stability of the longitudinal baffle 10 and the transverse baffle 11 after being impacted by the reactants can be improved.

[0030] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A 5-sodium sulfonate reactor for efficient sulfonation reaction, characterized in that: It includes a reactor body (1), multiple ear seats (2) are fixedly installed on the outer side of the reactor body (1), a heating coil (8) is also fixedly installed on the reactor body (1), and both ends of the heating coil (8) are respectively connected to an external heating medium circulation pump. Multiple feed pipes (3) are fixedly installed on the reactor body (1), a motor (4) is fixedly installed at the middle position on the reactor body (1), and the motor (4) is electrically connected to an external main controller through a cable. A separated fluid pressure tank (5) is also fixedly installed on the reactor body (1) near the motor (4). Multiple flow disturbing mechanisms (9) are fixedly installed inside the reactor body (1). The flow disturbing mechanism (9) includes a longitudinal baffle (10), and multiple transverse baffles (11) are fixedly installed on one side of the longitudinal baffle (10). A first connecting seat (12) and a second connecting seat (13) are respectively fixedly installed on the front side and the rear side of the longitudinal baffle (10).

2. The 5-sulfonate reactor for an efficient sulfonation reaction according to claim 1, characterized in that: The output end of the motor (4) is fixedly installed with a stirring shaft (6), and one end of the stirring shaft (6) far from the motor (4) extends into the reactor body (1) and is fixedly installed with multiple stirring blades (7).

3. The 5-sulfonate reactor for an efficient sulfonation reaction according to claim 1, characterized in that: First U-shaped diversion grooves (15) are respectively opened at the upper and lower positions inside the longitudinal baffle (10). A linear diversion groove (24) is opened inside the longitudinal baffle (10) between the two transverse baffles (11). A first liquid inlet (17) is opened at the rear side of one of the first U-shaped diversion grooves (15), and a first liquid outlet (19) is opened at the front side inside the other first U-shaped diversion groove (15).

4. The 5-sulfonate reactor for an efficient sulfonation reaction according to claim 3, characterized in that: Second U-shaped diversion grooves (16) are respectively opened inside the two transverse baffles (11), and the two second U-shaped diversion grooves (16) are communicated through the linear diversion groove (24). The ends of the two second U-shaped diversion grooves (16) far from the linear diversion groove (24) are respectively communicated with one of the first U-shaped diversion grooves (15).

5. A 5-sulfonate reactor for an efficient sulfonation reaction according to claim 1, characterized in that: Multiple contact grooves (18) are opened on the front sides of the longitudinal baffle (10) and the transverse baffles (11).

6. The 5-sulfonate reactor for efficient sulfonation reaction according to claim 4, characterized in that: A first diversion plate (20) is fixedly installed on one side of the first connecting seat (12), a second liquid outlet (21) is opened on the other side of the first connecting seat (12), and the inner cavity of the first connecting seat (12) is communicated with the cavity of one of the first U-shaped diversion grooves (15) through the second liquid outlet (21) and the first liquid outlet (19). The side of the first connecting seat (12) where the first diversion plate (20) is fixedly installed is fixedly installed inside the reactor body (1) and is communicated with the inner cavity of the heating coil (8) through a through groove on one side of the reactor body (1).

7. The 5-sulfonate reactor for an efficient sulfonation reaction according to claim 4, characterized in that: A second flow guide plate (22) is fixedly installed on one side of the second connection seat (13). A second liquid inlet (23) is formed on the other side of the second connection seat (13). The inner cavity of the second connection seat (13) is communicated with the inner cavity of one of the first U-shaped flow guide grooves (15) through the second liquid inlet (23) and the first liquid inlet (17). The side of the second connection seat (13) where the second flow guide plate (22) is fixedly installed is fixedly installed in the reactor body (1) and is communicated with the inner cavity of the heating coil (8) through a through groove on one side of the reactor body (1).

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