Device for treating p-trifluoromethylaniline rectifying still residues

Abstract

The utility model discloses a p-trifluoromethylaniline rectifying still residue treatment device, which belongs to the technical field of rectifying still residue treatment devices and comprises a fixed base, a heating barrel fixedly mounted at the top end of the fixed base, a reaction barrel fixedly mounted in the heating barrel, and a plurality of fixed square blocks fixedly mounted at the top end of the reaction barrel. A fixed top plate is slidably mounted at the top end of the reaction barrel, a rotating disc is rotatably mounted at the top end of the fixed top plate, a plurality of fixed connecting rods are slidably mounted on the rotating disc, buckles are fixedly mounted at the bottom ends of the fixed connecting rods, fixed springs are fixedly mounted on one sides of the buckles, and the fixed springs are fixedly mounted in the fixed top plate; the fixing square block is provided with a limiting clamping groove matched with the buckle. The fixed top plate is connected with the reaction barrel through the matching of the rotating disc, the fixed connecting rod and the buckle, so that the fixed top plate is more convenient to disassemble and assemble, residues after reaction cleaning can be better cleaned, and the pollution to the environment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of a device for treating a distillation still residue, in particular to a device for treating a distillation still residue of trifluoromethylaniline. Background Art

[0002] A device for treating trifluoromethylaniline distillation still residues relates to the technical field of chemical raw material processing, in particular to the synthesis and distillation process of trifluoromethylaniline, which is an important chemical raw material and is widely used in the pharmaceutical and pesticide industries. Its synthesis is usually obtained by a series of chemical reactions using parachlorotrifluorotoluene as a raw material. During the synthesis process, due to the heat sensitivity and easy polymerization characteristics of trifluoromethylaniline, the distillation process is complicated and challenging. In the traditional production process, the distillation of trifluoromethylaniline will produce a large amount of still residues, which contain incompletely reacted trifluoromethylaniline and by-products such as trifluoromethylphenol. If it is discharged directly, it will not only cause waste of resources, but also increase the amount of solid waste and pollute the environment. The existing treatment methods include using inorganic alkali and inhibitors for vacuum distillation, but these methods often have problems such as low treatment efficiency and complicated operation. The background technology of a device for treating trifluoromethylaniline distillation still residues is to solve the problems existing in the prior art, by improving the treatment process, realizing efficient recovery and utilization of resources, and reducing the environmental impact in the production process.

[0003] Most of the existing methods for treating the residue in the distillation kettle of trifluoromethylaniline mainly involve chemical reaction and separation technology. By controlling the temperature and adding different chemical reagents to allow the chemical reaction to proceed, a certain amount of residue will remain on the reaction distillation kettle after the reaction is completed, which may cause certain environmental pollution. Therefore, we propose a device for treating the residue in the distillation kettle of trifluoromethylaniline to solve this problem. Utility Model Content

[0004] The utility model aims to provide a device for treating trifluoromethylaniline distillation still residue to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A device for treating trifluoromethylaniline distillation still residue comprises: a fixed base, a heating barrel is fixedly installed on the top of the fixed base, a reaction barrel is fixedly installed in the heating barrel, a plurality of fixed blocks are fixedly installed on the top of the reaction barrel, a fixed top plate is slidably installed on the top of the reaction barrel, a rotating disc is rotatably installed on the top of the fixed top plate, a plurality of fixed connecting rods are slidably installed on the rotating disc, buckles are fixedly installed on the bottom ends of the plurality of fixed connecting rods, a fixed spring is fixedly installed on one side of the buckle, the fixed spring is fixedly installed in the fixed top plate, and a limiting slot matching the buckle is provided on the fixed block.

[0007] Preferably, a second feed pipe is fixedly installed on the bottom end of the reaction barrel, a check valve is fixedly installed on the bottom end of the second feed pipe, a first feed pipe is fixedly installed on one side of the check valve, a second control valve is fixedly installed on one side of the first feed pipe, a heating pipe is fixedly installed on the bottom end of the fixed base, and the first feed pipe is fixedly installed in the heating pipe.

[0008] Preferably, a plurality of limiting slide grooves are provided in the fixed top plate, the fixed spring is fixedly installed in the limiting slide groove, the buckle is slidably installed in the limiting slide groove, a T-shaped ring is integrally formed at the bottom end of the rotating disc, and a rotating T-ring groove matching the T-shaped ring is provided on the fixed top plate.

[0009] Preferably, a fixed motor is fixedly mounted on the top of the fixed top plate, a connecting rod is fixedly mounted on the output end of the fixed motor, and two stirring rods are fixedly mounted on the connecting rod.

[0010] Preferably, circular mounting holes are provided on both sides of the heating barrel, a water inlet pipe is fixedly installed in one of the circular mounting holes, a water outlet pipe is fixedly installed in the other circular mounting hole, and a sliding hole matching the fixed connecting rod is provided on the fixed top plate.

[0011] Preferably, a plurality of first control valves are fixedly mounted on the top of the fixed top plate, a water injection nozzle is integrally formed on one side of the reaction barrel, and a sealing cover is threadedly connected to the water injection nozzle.

[0012] Preferably, a plurality of support columns are fixedly mounted on the bottom end of the fixed base, and a fixing groove matching the check valve is formed at the bottom end of the fixed base.

[0013] In the utility model, the device for treating trifluoromethylaniline distillation still residue injects hot water into the heating barrel through a water inlet pipe to heat the heating barrel, thereby keeping the reaction barrel at a temperature suitable for the reaction, and then connects the reagent pipeline required for the reaction with the first control valve, controls different reagents to enter the reaction barrel through the first control valve, and facilitates the reaction, and after the reaction is completed, discharges the reactants in the reaction barrel through the second discharge pipe and the first discharge pipe, and simultaneously starts the heating pipe to prevent other reactions of trifluoromethylaniline from occurring during the discharge;

[0014] In the utility model, the device for treating the residue of the distillation kettle of trifluoromethylaniline injects clean water into the reaction barrel through the water injection nozzle, so as to clean the inside of the reaction barrel for the second time, so that it can be cleaned more cleanly, and then the rotating disc is rotated to drive the fixed connecting rod to move, and the fixed connecting rod drives the buckle to move, so that the buckle is recovered into the limiting slide groove, so as to facilitate the separation of the fixed top plate from the reaction barrel, and remove the fixed top plate, so as to facilitate the cleaning of the inside of the reaction barrel again and prevent the residue inside;

[0015] The utility model has a reasonable structural design. The fixed top plate is connected to the reaction barrel through the cooperation of the rotating disk, the fixed connecting rod and the buckle, which makes it more convenient to disassemble and install the fixed top plate, and can better clean the residue after reaction cleaning, thereby reducing pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a device for treating trifluoromethylaniline distillation still residues proposed by the utility model;

[0017] Figure 2 This is a schematic cross-sectional view of a device for treating trifluoromethylaniline distillation still residues proposed by the utility model;

[0018] Figure 3 It is a partial structural cross-sectional schematic diagram of a device for treating trifluoromethylaniline distillation still residue proposed by the utility model;

[0019] Figure 4 for Figure 3 A partial enlarged view of part A.

[0020] In the figure: 1. Fixed base; 2. Heating barrel; 3. Reaction barrel; 4. Fixed top plate; 5. Rotating disc; 6. Fixed motor; 7. First control valve; 8. Water inlet pipe; 9. Second control valve; 10. First discharge pipe; 11. Support column; 12. Water outlet pipe; 13. Sealing cover; 14. Stirring rod; 15. Second discharge pipe; 16. Check valve; 17. Heating pipe; 18. Connecting rod; 19. Fixed block; 20. T-shaped ring; 21. Fixed spring; 22. Buckle; 23. Fixed connecting rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-4 A device for treating trifluoromethylaniline distillation still residues comprises: a fixed base 1, a heating barrel 2 is fixedly installed on the top of the fixed base 1, a reaction barrel 3 is fixedly installed in the heating barrel 2, a plurality of fixed blocks 19 are fixedly installed on the top of the reaction barrel 3, a fixed top plate 4 is slidably installed on the top of the reaction barrel 3, a rotating disc 5 is rotatably installed on the top of the fixed top plate 4, a plurality of fixed connecting rods 23 are slidably installed on the rotating disc 5, a plurality of fixed connecting rods 23 are fixedly installed on the bottom ends of the plurality of fixed connecting rods 23, a fixed spring 21 is fixedly installed on one side of the clip 22, the fixed spring 21 is fixedly installed in the fixed top plate 4, a limiting slot matching the clip 22 is provided on the fixed block 19, so as to better slide and facilitate limiting.

[0023] In this embodiment, a second discharge pipe 15 is fixedly installed at the bottom of the reaction barrel 3, a check valve 16 is fixedly installed at the bottom of the second discharge pipe 15, a first discharge pipe 10 is fixedly installed on one side of the check valve 16, a second control valve 9 is fixedly installed on one side of the first discharge pipe 10, a heating pipe 17 is fixedly installed at the bottom of the fixed base 1, and the first discharge pipe 10 is fixedly installed in the heating pipe 17 for better installation.

[0024] In this embodiment, a plurality of limiting grooves are provided in the fixed top plate 4, the fixed spring 21 is fixedly installed in the limiting grooves, the buckle 22 is slidably installed in the limiting grooves, a T-shaped ring 20 is integrally formed at the bottom end of the rotating disk 5, and a rotating T-ring groove matching the T-shaped ring 20 is provided on the fixed top plate 4, which makes rotation more convenient.

[0025] In this embodiment, a fixed motor 6 is fixedly installed on the top of the fixed top plate 4, a connecting rod 18 is fixedly installed on the output end of the fixed motor 6, and two stirring rods 14 are fixedly installed on the connecting rod 18 to better assist the reaction. Installation circular holes are provided on both sides of the heating barrel 2, one of the installation circular holes is fixedly installed with a water inlet pipe 8, and the other installation circular hole is fixedly installed with a water outlet pipe 12. A sliding hole matching the fixed connecting rod 23 is provided on the fixed top plate 4 to make it more securely installed.

[0026] In this embodiment, a plurality of first control valves 7 are fixedly installed on the top of the fixed top plate 4, a water injection nozzle is integrally formed on one side of the reaction barrel 3, and a sealing cover 13 is threadedly connected to the water injection nozzle for better connection, and a plurality of support columns 11 are fixedly installed on the bottom end of the fixed base 1, and a fixed groove matching the check valve 16 is provided at the bottom end of the fixed base 1 for better installation.

[0027] In this embodiment, when in use, hot water is injected into the heating barrel 2 through the water inlet pipe 8 to heat it, so that the reaction barrel 3 is maintained at a temperature suitable for the reaction, and then the reagent pipeline required for the reaction is connected to the first control valve 7, and different reagents are controlled to enter the reaction barrel 3 through the first control valve 7 to facilitate the reaction. After the reaction is completed, the reactants in the reaction barrel 3 are discharged through the second discharge pipe 15 and the first discharge pipe 10, and the heating pipe 17 is started at the same time to prevent other reactions of trifluoromethylaniline during the discharge. After the discharge is completed, the sealing cover 13 is rotated and removed from the reaction barrel 3, and the upper layer of reactants after the reaction is discharged, and clean water is injected into the reaction barrel 3 through the water injection nozzle to perform a second cleaning of the inside of the reaction barrel 3 to clean it. The reagent pipeline connected to the first control valve 7 is then separated, and the rotating disk 5 installed on the top of the fixed top plate 4 is rotated to drive the fixed connecting rod 23 to move during rotation. At the same time, the fixed connecting rod 23 drives the buckle 22 fixedly connected at its bottom end to move, so that the buckle 22 squeezes the fixed spring 21, and the buckle 22 is recovered into the limiting slide groove provided on the fixed top plate 4. At the same time, the buckle 22 is disengaged from the limiting groove provided on the fixed block 19 to facilitate the separation of the fixed top plate 4 from the reaction barrel 3, and the fixed top plate 4 drives the fixed motor 6, the first control valve 7, the stirring rod 14 and the connecting rod 18 to move, so as to facilitate the third cleaning of the inside of the reaction barrel 3 and the stirring rod 14 and the connecting rod 18 to prevent internal residue.

[0028] The above is a detailed introduction to a device for treating trifluoromethylaniline distillation still residue provided by the utility model. Specific embodiments are used in this article to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A device for treating trifluoromethylaniline distillation still residue, characterized in that: include: A fixed base (1) is provided, wherein a heating barrel (2) is fixedly mounted on the top of the fixed base (1), a reaction barrel (3) is fixedly mounted in the heating barrel (2), a plurality of fixed blocks (19) are fixedly mounted on the top of the reaction barrel (3), a fixed top plate (4) is slidably mounted on the top of the reaction barrel (3), a rotating disc (5) is rotatably mounted on the top of the fixed top plate (4), a plurality of fixed connecting rods (23) are slidably mounted on the rotating disc (5), a buckle (22) is fixedly mounted on the bottom of the plurality of fixed connecting rods (23), a fixed spring (21) is fixedly mounted on one side of the buckle (22), the fixed spring (21) is fixedly mounted in the fixed top plate (4), and a limiting slot matching the buckle (22) is provided on the fixed block (19).

2. A device for treating trifluoromethylaniline distillation still residue according to claim 1, characterized in that: A second feed pipe (15) is fixedly mounted on the bottom end of the reaction barrel (3), a check valve (16) is fixedly mounted on the bottom end of the second feed pipe (15), a first feed pipe (10) is fixedly mounted on one side of the check valve (16), a second control valve (9) is fixedly mounted on one side of the first feed pipe (10), a heating pipe (17) is fixedly mounted on the bottom end of the fixed base (1), and the first feed pipe (10) is fixedly mounted in the heating pipe (17).

3. A device for treating trifluoromethylaniline distillation still residue according to claim 1, characterized in that: A plurality of limiting slide grooves are provided in the fixed top plate (4), the fixed spring (21) is fixedly installed in the limiting slide grooves, the buckle (22) is slidably installed in the limiting slide grooves, a T-shaped circular ring (20) is integrally formed at the bottom end of the rotating disk (5), and a rotating T-ring groove matching the T-shaped circular ring (20) is provided on the fixed top plate (4).

4. A device for treating trifluoromethylaniline distillation still residue according to claim 1, characterized in that: A fixed motor (6) is fixedly mounted on the top of the fixed top plate (4), a connecting rod (18) is fixedly mounted on the output end of the fixed motor (6), and two stirring rods (14) are fixedly mounted on the connecting rod (18).

5. A device for treating trifluoromethylaniline distillation still residue according to claim 1, characterized in that: The heating barrel (2) is provided with mounting circular holes on both sides, a water inlet pipe (8) is fixedly installed in one of the mounting circular holes, and a water outlet pipe (12) is fixedly installed in the other mounting circular hole, and a sliding hole matching the fixed connecting rod (23) is provided on the fixed top plate (4).

6. A device for treating trifluoromethylaniline distillation still residue according to claim 1, characterized in that: A plurality of first control valves (7) are fixedly mounted on the top of the fixed top plate (4), and a water injection nozzle is integrally formed on one side of the reaction barrel (3), and a sealing cover (13) is threadedly connected to the water injection nozzle.

7. A device for treating trifluoromethylaniline distillation still residue according to claim 1, characterized in that: A plurality of support columns (11) are fixedly mounted on the bottom end of the fixed base (1), and a fixing groove matching the check valve (16) is provided on the bottom end of the fixed base (1).

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