A hydrogenation device for producing p-aminophenol

Abstract

The utility model discloses a hydrogenation device for producing p-aminophenol, which relates to the technical field of aminophenol production and comprises a reactor; an injection pipe is fixedly connected to the top of the reactor; a motor is installed on the top of the reactor; a connecting rod is fixedly connected to the output end of the motor, a conveying cavity is provided inside the connecting rod; a rotating rod is fixedly connected to the bottom end of the connecting rod; the connecting rod is rotated by the motor, the rotation of the rotating rod causes a rotating plate to rotate, the rotation of the rotating plate causes a swing plate to rotate to stir the aminophenol inside the reactor, hydrogen can be transported to an injection pipe through the conveying cavity inside the connecting rod, the hydrogen is discharged from the injection pipe to mix with the aminophenol, the swing plate can stir the aminophenol, the aminophenol can be stirred while the hydrogen discharged from the reactor in coordination with the injection pipe is reacted with the aminophenol, thereby improving the uniformity of the mixing of hydrogen and aminophenol, and also improving the reaction effect of the aminophenol and hydrogen.

Description

Technical Field

[0001] The utility model relates to the technical field of aminophenol production, in particular to a hydrogenation device for producing p-aminophenol. Background Art

[0002] Aminophenol is an organic compound and a derivative of aniline and phenol. It is a white crystalline solid with the properties of aniline and phenol and is soluble in water and alcohol solvents. Aminophenol is often used as an intermediate in the fields of medicine, dyes, rubber and plastics.

[0003] A Chinese patent with authorization announcement number CN218502057U discloses a neutralization tower for the production of m-aminophenol, comprising a shell, a mixing box is fixedly connected to the middle of the top of the shell, and the outer walls on both sides of the mixing box are respectively provided with an acid delivery hopper and an alkali delivery hopper, and the bottom end of the mixing box is provided with a liquid adding hole connected to the shell, and a stirring rod is provided inside the shell and the mixing box for rotation together, and a motor is fixedly connected to the top of the mixing box, and one end of the output shaft of the motor is fixedly connected to the top of the stirring rod; the acid and alkali solutions are added from the acid delivery hopper and the alkali delivery hopper to the mixing box to preliminarily mix the solutions, and then after entering the shell, the motor drives the stirring rod to rotate, and under its transmission action, the stirring blade and the blade can rotate at the same time, and the stirring blade stirs the liquid in the shell, thereby fully mixing the solution and improving the rate of the neutralization reaction.

[0004] The disadvantages of the above-mentioned prior art solutions are that: although the above-mentioned solution can add the acid and alkali solutions from the acid and alkali feeding buckets into the mixing box to preliminarily mix the solutions, and the motor drives the stirring rod to rotate, thereby fully mixing the solutions and improving the rate of the neutralization reaction, it cannot be hydrogenated in the production of p-aminophenol, and the traditional hydrogenation method cannot be fully mixed with aminophenol. Here, we provide a hydrogenation device for the production of p-aminophenol. Utility Model Content

[0005] The utility model aims to provide a hydrogenation device for producing p-aminophenol, so as to solve the technical problems that the p-aminophenol cannot be hydrogenated in the production of p-aminophenol in the prior art and the traditional hydrogenation method cannot be fully mixed with aminophenol.

[0006] The technical problem to be solved by the utility model can be achieved through the following technical solutions:

[0007] A hydrogenation device for producing p-aminophenol comprises a reactor; an injection pipe is fixedly connected to the top of the reactor; a motor is installed on the top of the reactor; a connecting rod is fixedly connected to the output end of the motor, and a conveying cavity is opened inside the connecting rod; a rotating rod is fixedly connected to the bottom end of the connecting rod; a rotating plate is fixedly connected to the bottom end of the rotating rod; a plurality of groups of injection pipes are fixedly connected to the bottom end of the rotating plate, and the injection pipes are connected to the conveying cavity; a swing plate is fixedly connected to one side of the injection pipe at the bottom end of the rotating plate; and a discharge pipe is fixedly connected to the bottom end of the reactor.

[0008] As a further solution of the utility model: a stirring rod is fixedly connected to the outer side wall of the rotating rod; a plurality of groups of uniform air pipes are fixedly connected to the outer side wall of the stirring rod, and the uniform air pipes are connected to the conveying cavity.

[0009] As a further solution of the utility model: a connecting ring is fixedly connected to the top of the reactor; a hydrogen delivery pipe is fixedly connected to the side end of the connecting ring; an air hole is opened inside the connecting rod, and the air hole is connected to the connecting ring.

[0010] As a further solution of the utility model: a hinge shaft is fixedly connected to the inner side wall of the rotating rod, a torsion spring is installed inside the hinge shaft; and a baffle is rotatably connected to the hinge shaft.

[0011] As a further solution of the utility model: a rubber plate is fixedly connected to the bottom end of the swing plate, and the rubber plate is rotatably connected to the inner wall of the reaction kettle.

[0012] As a further solution of the utility model: a sealing ring is fixedly connected inside the connecting ring, and a connecting rod is rotatably connected to one side of the sealing ring.

[0013] The beneficial effects of the utility model are as follows: hydrogen is transported to the interior of the reactor through the injection pipe, the connecting rod is rotated by the motor, the rotation of the connecting rod then rotates the rotating rod, the rotation of the rotating rod causes the rotating plate to rotate, the rotation of the rotating plate causes the swing plate to rotate to stir the aminophenol inside the reactor, hydrogen can be transported to the jet pipe through the transport cavity inside the connecting rod, the hydrogen is discharged from the jet pipe and mixed with the aminophenol, the swing plate can stir the aminophenol, the aminophenol can be stirred while the reactor cooperates with the hydrogen discharged from the jet pipe to mix with the aminophenol, thereby improving the uniformity of the mixing of hydrogen and aminophenol, and also improving the reaction effect of aminophenol and hydrogen. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0018] In the figure: 1. Reactor; 2. Injection pipe; 3. Motor; 4. Rotating rod; 5. Rotating plate; 6. Jet pipe; 7. Discharge pipe; 8. Swing plate; 9. Rubber plate; 10. Stirring rod; 11. Even gas pipe; 12. Connecting rod; 13. Connecting ring; 14. Hydrogen delivery pipe; 15. Air hole; 16. Sealing ring; 17. Baffle; 18. Articulated shaft. DETAILED DESCRIPTION

[0019] 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.

[0020] like Figure 1-Figure 3 As shown, a hydrogenation device for producing p-aminophenol comprises a reactor 1; an injection pipe 2 is fixedly connected to the top of the reactor 1; a motor 3 is installed on the top of the reactor 1; a connecting rod 12 is fixedly connected to the output end of the motor 3, and a conveying cavity is opened inside the connecting rod 12; a rotating rod 4 is fixedly connected to the bottom end of the connecting rod 12; a rotating plate 5 is fixedly connected to the bottom end of the rotating rod 4; a plurality of groups of injection pipes 6 are fixedly connected to the bottom end of the rotating plate 5, and the injection pipes 6 are connected to the conveying cavity; a swing plate 8 is fixedly connected to one side of the injection pipe 6 at the bottom end of the rotating plate 5; a discharge pipe 7 is fixedly connected to the bottom end of the reactor 1;

[0021] During operation, aminophenol is transported to the interior of the reactor 1 through the injection pipe 2, and the connecting rod 12 is rotated by the motor 3. The rotation of the connecting rod 12 then rotates the rotating rod 4, and the rotation of the rotating rod 4 rotates the rotating plate 5. The rotation of the rotating plate 5 rotates the swing plate 8 to stir the aminophenol inside the reactor 1. Hydrogen can be transported to the jet pipe 6 through the transport cavity inside the connecting rod 12, and the hydrogen is discharged from the jet pipe 6 to mix with the aminophenol. The swing plate 8 can stir the aminophenol, and the aminophenol can be stirred while the hydrogen discharged from the reactor 1 in cooperation with the jet pipe 6 is mixed with the aminophenol, thereby improving the uniformity of the mixing of hydrogen and aminophenol, and the processed aminophenol can be discharged from the discharge pipe 7.

[0022] The outer wall of the rotating rod 4 is fixedly connected with a stirring rod 10 ; the outer wall of the stirring rod 10 is fixedly connected with a plurality of uniform air pipes 11 , and the uniform air pipes 11 are connected with the conveying cavity.

[0023] The conveying cavity inside the connecting rod 12 is connected to the uniform gas pipe 11, and the hydrogen inside the conveying cavity can be discharged from the uniform gas pipe 11. The rotating rod 4 rotates to rotate the stirring rod 10, and the rotation of the stirring rod 10 can stir the aminophenol inside the reactor 1. The stirring rod 10 stirs the aminophenol while coordinating with the hydrogen discharged from the uniform gas pipe 11, so that the aminophenol is stirred and mixed with the hydrogen at the same time, thereby improving the mixing effect of the hydrogen and the aminophenol.

[0024] A connecting ring 13 is fixedly connected to the top of the reactor 1 ; a hydrogen delivery pipe 14 is fixedly connected to the side end of the connecting ring 13 ; an air hole 15 is opened inside the connecting rod 12 , and the air hole 15 is connected to the connecting ring 13 .

[0025] Before work, install the connecting ring 13 to the outer wall of the connecting rod 12. Hydrogen can be transported through the hydrogen transport pipe 14. The hydrogen transport pipe 14 is connected to the connecting ring 13. The hydrogen in the hydrogen transport pipe 14 enters the interior of the connecting ring 13 and enters the interior of the connecting rod 12 through the air hole 15. The rotation of the connecting rod 12 will not affect the entry of hydrogen into the interior of the connecting rod 12. The hydrogen inside the hydrogen transport pipe 14 can be transported into the interior of the connecting rod 12 through the connecting ring 13.

[0026] The inner side wall of the rotating rod 4 is fixedly connected with a hinge shaft 18 , and a torsion spring is installed inside the hinge shaft 18 ; a baffle 17 is rotatably connected to the hinge shaft 18 .

[0027] After hydrogen enters the delivery chamber inside the connecting rod 12, it will be transported downward. The pressure of the hydrogen will cause the baffle 17 to rotate. The baffle 17 can rotate on the hinge shaft 18. The torsion spring elasticity of the hinge shaft 18 can reset the baffle 17. When the hydrogen stops being transported, the elasticity of the torsion spring inside the hinge shaft 18 can reset the baffle 17 and close it, thereby reducing the internal gas leakage upward from the connecting rod 12.

[0028] A rubber plate 9 is fixedly connected to the bottom end of the swing plate 8 , and the rubber plate 9 is rotatably connected to the inner wall of the reaction kettle 1 .

[0029] The rotation of the rotating plate 5 causes the swing plate 8 to rotate, and the rotation of the swing plate 8 causes the rubber plate 9 to rotate. The rubber plate 9 is made of rubber material, and the rubber plate 9 can be deformed to avoid friction loss with the inner wall of the bottom end of the reactor 1. The rotation of the rubber plate 9 cooperates with the swing plate 8 to stir the aminophenol.

[0030] A sealing ring 16 is fixedly connected inside the connecting ring 13 , and a connecting rod 12 is rotatably connected to one side of the sealing ring 16 .

[0031] The motor 3 rotates the connecting rod 12, and hydrogen enters the interior of the connecting rod 12 through the connecting ring 13. The inner wall of the connecting ring 13 is provided with a sealing ring 16, which is in contact with the outer wall of the connecting rod 12 through the sealing ring 16. The sealing ring 16 is made of rubber material and has good sealing performance. The sealing ring 16 can improve the sealing performance between the connecting ring 13 and the connecting rod 12 and reduce the leakage of hydrogen.

[0032] The working principle of the utility model is as follows: before working, the connecting ring 13 is installed to the outer wall of the connecting rod 12, hydrogen can be transported through the hydrogen transport pipe 14, the hydrogen transport pipe 14 is connected to the connecting ring 13, hydrogen enters the interior of the connecting ring 13 through the air hole 15 and enters the interior of the connecting rod 12, the rotation of the connecting rod 12 will not affect the hydrogen entering the interior of the connecting rod 12, the hydrogen inside the hydrogen transport pipe 14 can be transported into the interior of the connecting rod 12 through the connecting ring 13; during working, aminophenol is transported to the interior of the reactor 1 through the injection pipe 2, and the connecting rod 12 is rotated by the motor 3. The rotation of the connecting rod 12 causes the rotating rod 4 to rotate, and the rotation of the rotating rod 4 causes the rotating plate 5 to rotate. The rotation of the rotating plate 5 causes the swing plate 8 to rotate to stir the aminophenol inside the reactor 1. The hydrogen can be transported to the jet pipe 6 through the transport cavity inside the connecting rod 12. The hydrogen is discharged from the jet pipe 6 and mixed with the aminophenol. The swing plate 8 can stir the aminophenol, so that the aminophenol can be stirred while the hydrogen discharged from the reactor 1 and the jet pipe 6 are mixed with the aminophenol, thereby improving the uniformity of the mixing of hydrogen and aminophenol. The processed aminophenol can be discharged from the discharge pipe 7; the motor 3 The connecting rod 12 is rotated, and hydrogen enters the interior of the connecting rod 12 through the connecting ring 13. The inner wall of the connecting ring 13 is provided with a sealing ring 16, which is in contact with the outer wall of the connecting rod 12 through the sealing ring 16. The sealing ring 16 is made of rubber material and has good sealing performance. The sealing ring 16 can improve the sealing performance between the connecting ring 13 and the connecting rod 12 and reduce the leakage of hydrogen. After the hydrogen enters the conveying cavity inside the connecting rod 12, it will be conveyed downward. The pressure of the hydrogen will cause the baffle 17 to rotate. The baffle 17 can rotate on the hinge shaft 18. The torsion spring elasticity of the hinge shaft 18 can reset the baffle 17. When the hydrogen stops being transported, the elasticity of the torsion spring inside the hinge shaft 18 can make the baffle 17 reset and close, reducing the internal gas leakage from the connecting rod 12 upward; the internal transport cavity of the connecting rod 12 is connected to the uniform gas pipe 11, and the hydrogen inside the transport cavity can be discharged from the uniform gas pipe 11. The rotating rod 4 rotates to rotate the stirring rod 10, and the rotation of the stirring rod 10 can stir the aminophenol inside the reactor 1. The stirring rod 10 stirs the aminophenol and cooperates with the hydrogen discharged from the uniform gas pipe 11, so that the aminophenol is stirred and mixed with the hydrogen at the same time, thereby improving the mixing effect of hydrogen and aminophenol.

[0033] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A hydrogenation device for the production of p-aminophenol, characterized in that: The invention comprises a reactor (1); an injection pipe (2) is fixedly connected to the top of the reactor (1); a motor (3) is installed at the top of the reactor (1); a connecting rod (12) is fixedly connected to the output end of the motor (3), and a conveying cavity is provided inside the connecting rod (12); a rotating rod (4) is fixedly connected to the bottom end of the connecting rod (12); a rotating plate (5) is fixedly connected to the bottom end of the rotating rod (4); a plurality of jet pipes (6) are fixedly connected to the bottom end of the rotating plate (5), and the jet pipes (6) are connected to the conveying cavity; a swing plate (8) is fixedly connected to one side of the jet pipe (6) at the bottom end of the rotating plate (5); and a discharge pipe (7) is fixedly connected to the bottom end of the reactor (1).

2. A hydrogenation device for producing p-aminophenol according to claim 1, characterized in that: The outer wall of the rotating rod (4) is fixedly connected to a stirring rod (10); the outer wall of the stirring rod (10) is fixedly connected to a plurality of groups of uniform air pipes (11), and the uniform air pipes (11) are connected to the conveying cavity.

3. A hydrogenation device for producing p-aminophenol according to claim 1, characterized in that: A connecting ring (13) is fixedly connected to the top end of the reaction kettle (1); a hydrogen delivery pipe (14) is fixedly connected to the side end of the connecting ring (13); and an air hole (15) is provided inside the connecting rod (12), and the air hole (15) is connected to the connecting ring (13).

4. A hydrogenation device for producing p-aminophenol according to claim 1, characterized in that: The inner side wall of the rotating rod (4) is fixedly connected with a hinge shaft (18), and a torsion spring is installed inside the hinge shaft (18); a baffle (17) is rotatably connected to the hinge shaft (18).

5. A hydrogenation device for producing p-aminophenol according to claim 1, characterized in that: A rubber plate (9) is fixedly connected to the bottom end of the swing plate (8), and the rubber plate (9) is rotatably connected to the inner wall of the reaction kettle (1).

6. A hydrogenation device for producing p-aminophenol according to claim 3, characterized in that: A sealing ring (16) is fixedly connected inside the connecting ring (13), and a connecting rod (12) is rotatably connected to one side of the sealing ring (16).

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