Reduced pressure distillation device for benzylamine preparation

Abstract

The utility model discloses a reduced pressure distillation device for preparing benzylamine, which is characterized in that a vacuum pump is arranged on a reduced pressure distillation device body, the upper surface of the reduced pressure distillation device body is fixedly connected with a fan, the input end of the fan is fixedly connected with a suction pipe, and one end, far away from the fan, of the suction pipe is fixedly connected with a suction nozzle; the upper surface of the reduced pressure distiller body is fixedly connected with a purifier, the inner bottom surface of the reduced pressure distiller body is provided with a storage tank, the storage tank is internally and fixedly connected with a motor, the output end of the motor is fixedly connected with an auger, and the inner bottom surface of the reduced pressure distiller body is rotatably connected with a rotating shaft. According to the distiller, residual gas in the distiller can be absorbed, negative influence on product quality is avoided, leakage of the residual gas can be avoided, the risk of injury to operators is reduced, harmful gas is prevented from being discharged into the atmosphere, the surrounding environment is protected, and pollution influence on the surrounding ecological environment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of distillation devices, and particularly relates to a vacuum distillation device for preparing benzylamine. Background Art

[0002] Benzylamine is a chemical raw material, which is widely used in industries such as medicine, pesticides, and dyes. The boiling point of a liquid refers to the temperature at which its vapor pressure is equal to the external pressure. Therefore, the boiling point of a liquid changes with the change of the external pressure. If the pressure inside the system is reduced by means of a vacuum pump, the boiling point of the liquid can be reduced, which is the theoretical basis for vacuum distillation operation. Benzylamine is usually prepared by the reduction reaction of dibenzylamine or benzaldehyde. Distillation is the key step for separating and purifying the reaction products. Using vacuum can reduce the boiling point and thus improve the separation efficiency. However, when the existing devices are in use, the residual gas may cause harm to the health of the staff or cause pollution. For example, China has published "a vacuum distillation device for preparing benzylamine", and its application number is: "CN202122016912.6". Through the cooperation of the connecting rod and the scraper, it can scrape the inner wall of the distillation tank to prevent materials from adhering and accumulating on the inner wall of the tank. However, it cannot absorb the residual gas in the distiller to avoid the negative impact on the product quality, cannot reduce the risk of harm to the operators, and cannot reduce the pollution impact on the surrounding ecological environment. It cannot better discharge the residual substances inside the equipment, such as impurities and sediments, quickly. Summary of the Utility Model

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a vacuum distillation device for preparing benzylamine. Through the cooperation of the fan, the suction pipe and the suction nozzle, the residual gas in the distiller can be absorbed, avoiding the negative impact on the product quality, preventing the leakage of the residual gas, reducing the risk of harm to the operators, preventing harmful gases from being discharged into the atmosphere, protecting the surrounding environment, and reducing the pollution impact on the surrounding ecological environment; through the cooperation of the motor, the auger and the storage tank, the residual substances inside the equipment, such as impurities and sediments, can be discharged quickly, reducing the accumulation of residues inside the equipment and improving the cleanliness of the equipment.

[0004] The present utility model also provides a vacuum distillation device for preparing benzylamine with the above-mentioned structure, including: a vacuum distillation apparatus body, a vacuum pump is arranged on the vacuum distillation apparatus body, a blower is fixedly connected to the upper surface of the vacuum distillation apparatus body, an input end of the blower is fixedly connected with a suction pipe, one end of the suction pipe away from the blower is fixedly connected with a suction nozzle, a purifier is fixedly connected to the upper surface of the vacuum distillation apparatus body, an accumulation tank is arranged on the inner bottom surface of the vacuum distillation apparatus body, a motor is fixedly connected inside the accumulation tank, an output end of the motor is fixedly connected with an auger, a rotating shaft is rotatably connected to the inner bottom surface of the vacuum distillation apparatus body, and a scraper is fixedly connected to an outer surface of the rotating shaft. Through the cooperation of the blower, the suction pipe and the suction nozzle, the residual gas in the distiller can be absorbed, avoiding negative impacts on the product quality, preventing the leakage of the residual gas, reducing the risk of harm to the operators, preventing the emission of harmful gases into the atmosphere, protecting the surrounding environment and reducing the pollution impact on the surrounding ecological environment; through the cooperation of the motor, the auger and the accumulation tank, the residues such as impurities and precipitates inside the equipment can be discharged quickly, reducing the accumulation of residues inside the equipment and improving the cleanliness of the equipment.

[0005] For a vacuum distillation device for preparing benzylamine according to the present utility model, the suction pipe is fixedly connected to the vacuum distillation apparatus body, and the suction nozzle is fixedly connected to the vacuum distillation apparatus body, which can improve the connection stability between the devices.

[0006] For a vacuum distillation device for preparing benzylamine according to the present utility model, a groove is arranged on the inner surface of the vacuum distillation apparatus body, and the suction nozzle is located inside the groove, which can reduce the space occupation.

[0007] For a vacuum distillation device for preparing benzylamine according to the present utility model, an output end of the blower is fixedly connected with a delivery pipe, and one end of the delivery pipe away from the blower is fixedly connected with the purifier, which can transport the absorbed gas to the purifier for purification.

[0008] For a vacuum distillation device for preparing benzylamine according to the present utility model, the scraper is movably connected to the vacuum distillation apparatus body, and a silica gel sleeve is fixedly connected to an outer surface of the scraper, which can prevent damage to the equipment.

[0009] For a vacuum distillation device for preparing benzylamine according to the present utility model, a discharge valve is fixedly connected to an outer surface of the vacuum distillation apparatus body, and the auger is movably connected to the discharge valve, which can discharge the material quickly and has a sealing effect.

[0010] For a vacuum distillation device for preparing benzylamine according to the present utility model, the auger is connected to the accumulation tank, and the scraper is movably connected to the accumulation tank, which can quickly discharge the impurities inside the equipment from the accumulation tank.

[0011] A vacuum distillation device for preparing benzylamine according to the present utility model, the lower surface of the vacuum distillation apparatus body is fixedly connected with a base, which can ensure the stability of the entire device.

[0012] Advantageous effects

[0013] 1. Compared with the prior art, the novel vacuum distillation device for preparing benzylamine can absorb the residual gas in the distiller through the cooperation of the fan, the suction pipe and the suction nozzle, avoiding the negative impact on the product quality, preventing the leakage of the residual gas, reducing the risk of harm to the operator, preventing the emission of harmful gases into the atmosphere, protecting the surrounding environment and reducing the pollution impact on the surrounding ecological environment.

[0014] 2. Compared with the prior art, the novel vacuum distillation device for preparing benzylamine can better discharge the substances remaining inside the device, such as impurities and sediments, quickly through the cooperation of the motor, the auger and the storage tank, reducing the accumulation of residues inside the device and improving the cleanliness of the device. Description of the drawings

[0015] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0016] Figure 1 is a three-dimensional structure diagram of the vacuum distillation apparatus body of the vacuum distillation device for preparing benzylamine of the present utility model;

[0017] Figure 2 is an internal structure diagram of the vacuum distillation apparatus body of the vacuum distillation device for preparing benzylamine of the present utility model;

[0018] Figure 3 is a top plate structure diagram of the vacuum distillation apparatus body of the vacuum distillation device for preparing benzylamine of the present utility model;

[0019] Figure 4 is a bottom plate structure diagram of the vacuum distillation apparatus body of the vacuum distillation device for preparing benzylamine of the present utility model.

[0020] Legend:

[0021] 1. Vacuum distillation apparatus body; 2. Vacuum pump; 3. Fan; 4. Suction pipe; 5. Suction nozzle; 6. Delivery pipe; 7. Purifier; 8. Storage tank; 9. Motor; 10. Auger; 11. Discharge valve; 12. Rotating shaft; 13. Scraper. Detailed implementation manners

[0022] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to visually and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be construed as a limitation on the protection scope of the present utility model.

[0023] Referring to Figures 1-4 , in an embodiment of the present utility model, a vacuum distillation device for the preparation of benzylamine includes: a vacuum distillation apparatus body 1 for supporting the entire device. A vacuum pump 2 is provided on the vacuum distillation apparatus body 1. By starting the vacuum pump 2, the pressure of the vacuum distillation apparatus body 1 is gradually reduced to reduce the boiling point of benzylamine. A blower 3 is fixedly connected to the upper surface of the vacuum distillation apparatus body 1 for providing suction. An intake pipe 4 is fixedly connected to the input end of the blower 3 for conveying gas. One end of the intake pipe 4 away from the blower 3 is fixedly connected to a suction nozzle 5 for absorbing the gas inside the vacuum distillation apparatus body 1. A purifier 7 is fixedly connected to the upper surface of the vacuum distillation apparatus body 1 for purifying harmful gases. An accumulation tank 8 is provided on the inner bottom surface of the vacuum distillation apparatus body 1 for accumulating impurities. A motor 9 is fixedly connected inside the accumulation tank 8 for providing power to the auger 10. The output end of the motor 9 is fixedly connected to the auger 10 for transporting the impurities inside the vacuum distillation apparatus body 1. A rotating shaft 12 is rotatably connected to the inner bottom surface of the vacuum distillation apparatus body 1 for rotating a scraper 13. A scraper 13 is fixedly connected to the outer surface of the rotating shaft 12 for scraping the impurities at the bottom of the vacuum distillation apparatus body 1 into the accumulation tank 8.

[0024] The intake pipe 4 is fixedly connected to the vacuum distillation apparatus body 1 for fixing the intake pipe 4. The suction nozzle 5 is fixedly connected to the vacuum distillation apparatus body 1 for fixing the suction nozzle 5. A groove is provided on the inner surface of the vacuum distillation apparatus body 1, and the suction nozzle 5 is located inside the groove. An outlet pipe 6 is fixedly connected to the output end of the blower 3. One end of the outlet pipe 6 away from the blower 3 is fixedly connected to the purifier 7 for transporting the absorbed gas to the purifier 7. The scraper 13 is movably connected to the vacuum distillation apparatus body 1. A silica gel sleeve is fixedly connected to the outer surface of the scraper 13 for preventing damage to the equipment. An outlet valve 11 is fixedly connected to the outer surface of the vacuum distillation apparatus body 1 for discharging the remaining impurities. The auger 10 is movably connected to the outlet valve 11, and the auger 10 is connected to the accumulation tank 8 for the rotation of the auger 10. The scraper 13 is movably connected to the accumulation tank 8 for scraping the impurities at the bottom of the vacuum distillation apparatus body 1 into the accumulation tank 8. A base is fixedly connected to the lower surface of the vacuum distillation apparatus body 1.

[0025] Working principle: When in use, the system pressure is gradually reduced by the vacuum pump 2 to reduce the boiling point of benzylamine. Then, after the processing is completed, the blower 3 absorbs the residual gas inside the vacuum distillation apparatus body 1 through the intake pipe 4 and the suction nozzle 5, and then transports it to the purifier 7 through the outlet pipe 6 for purification. When cleaning the vacuum distillation apparatus body 1, the rotating shaft 12 rotates the scraper 13 to scrape the impurities at the bottom of the vacuum distillation apparatus body 1 into the accumulation tank 8, and then the motor 9 rotates the auger 10, and the auger 10 discharges the impurities through the outlet valve 11.

[0026] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those of ordinary skill in the art to which it pertains.

Claims

1. A vacuum distillation apparatus for preparing benzylamine, characterized in that: include: A vacuum distiller body (1) is provided with a vacuum pump (2), a fan (3) is fixedly connected to the upper surface of the vacuum distiller body (1), a suction pipe (4) is fixedly connected to the input end of the fan (3), a suction nozzle (5) is fixedly connected to the end of the suction pipe (4) away from the fan (3), a purifier (7) is fixedly connected to the upper surface of the vacuum distiller body (1), a collection tank (8) is provided on the inner bottom surface of the vacuum distiller body (1), a motor (9) is fixedly connected in the collection tank (8), an auger (10) is fixedly connected to the output end of the motor (9), a rotating shaft (12) is rotatably connected to the inner bottom surface of the vacuum distiller body (1), and a scraper (13) is fixedly connected to the outer surface of the rotating shaft (12).

2. A vacuum distillation apparatus for preparing benzylamine according to claim 1, characterized in that: The suction pipe (4) is fixedly connected to the vacuum distiller body (1), and the suction nozzle (5) is fixedly connected to the vacuum distiller body (1).

3. A vacuum distillation apparatus for preparing benzylamine according to claim 1, characterized in that: The inner surface of the vacuum distiller body (1) is provided with a groove, and the suction nozzle (5) is located in the groove.

4. A vacuum distillation apparatus for preparing benzylamine according to claim 1, characterized in that: The output end of the fan (3) is fixedly connected to a delivery pipe (6), and the end of the delivery pipe (6) away from the fan (3) is fixedly connected to a purifier (7).

5. A vacuum distillation apparatus for preparing benzylamine according to claim 1, characterized in that: The scraper (13) is movably connected to the vacuum distiller body (1), and a silicone sleeve is fixedly connected to the outer surface of the scraper (13).

6. A vacuum distillation apparatus for preparing benzylamine according to claim 1, characterized in that: A discharge valve (11) is fixedly connected to the outer surface of the vacuum distiller body (1), and the auger (10) is movably connected to the discharge valve (11).

7. A vacuum distillation apparatus for preparing benzylamine according to claim 1, characterized in that: The auger (10) is connected to the collection tank (8), and the scraper (13) is movably connected to the collection tank (8).

8. A vacuum distillation apparatus for preparing benzylamine according to claim 1, characterized in that: The lower surface of the vacuum distiller body (1) is fixedly connected to a base.

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