A vacuum concentration device for producing L-selenium-methylselenocysteine

Abstract

The utility model relates to the field of concentration equipment, concretely relates to a vacuum concentration device for L-selenium-methyl selenocysteine production, including the concentration jar, the outside of concentration jar is equipped with the heating jacket, and the concentration jar is connected with vacuum pump and condenser, and the inner wall of concentration jar is inclined, and the upper end of concentration jar is provided with drive assembly, and drive assembly includes the telescopic transmission shaft of vertical extension, and the upper end of concentration jar is provided with the limiting pipe of the sleeve in the outside of telescopic transmission shaft, and the inside of limiting pipe is provided with the lifting ring of the rotation connection with telescopic transmission shaft, and the upper end of lifting ring is fixedly provided with the piston of the sealed connection with limiting pipe and telescopic transmission shaft, and the lower extreme of limiting pipe is provided with the compression elastic part of the connection with lifting ring, and the lower extreme of telescopic transmission shaft is connected with the scraper of the shape adaptation with the inner wall of concentration jar. The utility model has the effect of cleaning the inner wall of concentration jar.

Description

Technical Field

[0001] This utility model relates to the field of concentration equipment, specifically to a vacuum concentration device for the production of L-selenium-methylselenocysteine. Background Technology

[0002] L-Selenium-methylselenocysteine, or L-selenium for short, is an organoselenium compound used in fields such as nutritional fortification and health care. In the production process of L-selenium-methylselenocysteine, the concentration step is a key process step, which is necessary for the following reasons: improving product purity and yield, optimizing reaction conditions and stability, reducing subsequent processing costs, and meeting safety and environmental protection requirements.

[0003] Vacuum concentrators are widely used in the concentration process. The working principle of a vacuum concentrator is based on the boiling point reduction effect and the evaporation and condensation cycle. In order to ensure the efficient operation of the vacuum concentrator, it is necessary to clean the inside of the vacuum concentrator regularly. The cleaning of the concentration tank is particularly important. Therefore, it is necessary to design a vacuum concentrator that can clean the inside of the concentration tank. Summary of the Invention

[0004] The purpose of this invention is to provide a vacuum concentration device for the production of L-seleno-methylselenocysteine, which has the advantage of being able to clean the inside of the concentration tank.

[0005] The technical solution adopted is as follows:

[0006] A vacuum concentration device for the production of L-seleno-methylselenocysteine ​​includes a concentration tank, an external heating jacket, a vacuum pump and a condenser connected to the tank, an inclined inner wall, a drive assembly at the upper end of the tank, the drive assembly including a vertically extending telescopic drive shaft, a limiting tube sleeved on the outside of the telescopic drive shaft at the upper end of the tank, a lifting ring rotatably connected to the telescopic drive shaft inside the limiting tube, a piston fixedly mounted at the upper end of the lifting ring and sealed to both the limiting tube and the telescopic drive shaft, a compression elastic element connected to the lifting ring at the lower end of the limiting tube, and a scraper adapted to the shape of the inner wall of the concentration tank connected to the lower end of the telescopic drive shaft.

[0007] Preferably, the outer wall of the concentration tank is provided with multiple heat exchange fins, all of which are located inside the heating jacket.

[0008] Preferably, the lower end of the limiting tube is provided with an installation ring, the installation ring is vertically provided with multiple guide holes, and a guide shaft is vertically slidably arranged in the guide holes, and the guide shaft is fixedly connected to the lifting ring.

[0009] Preferably, the concentration tank is equipped with a pressure sensor and a temperature sensor.

[0010] Preferably, the upper end face of the concentration tank is provided with an observation window.

[0011] Preferably, the compression elastic element is a compression spring.

[0012] Compared to existing technologies, the advantages are:

[0013] This invention regulates the air pressure inside the concentration tank using a vacuum pump, adjusts the position of the piston, and thus adjusts the position of the lifting ring and the lower end of the telescopic transmission shaft. Ultimately, this allows for the adjustment of the scraper height. The scraper descends and contacts the inner wall of the concentration tank, and the drive assembly uses the telescopic transmission shaft to drive the scraper to rotate and clean the inside of the concentration tank. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of a vacuum concentration device for the production of L-seleno-methylselenocysteine ​​according to this utility model.

[0015] Figure 2 yes Figure 1 A schematic diagram of the structure at point A in the middle.

[0016] Figure 3 This is a front view schematic diagram of a vacuum concentration device for the production of L-seleno-methylselenocysteine ​​according to this utility model.

[0017] In the diagram: 1. Concentrator; 2. Heating jacket; 3. Heat exchange fins; 4. Vacuum pump; 5. Condenser; 6. Pressure sensor; 7. Temperature sensor; 8. Drive assembly; 9. Telescopic drive shaft; 10. Limiting tube; 11. Lifting ring; 12. Piston; 13. Compression elastic element; 14. Scraper; 15. Mounting ring; 16. Guide shaft; 17. Observation window. Detailed Implementation

[0018] The present invention will be further described below with reference to specific embodiments, such as... Figures 1 to 3 As shown:

[0019] Example 1: A vacuum concentration device for the production of L-seleno-methylselenocysteine ​​includes a concentration tank 1, and a heating jacket 2 is provided on the outside of the concentration tank 1. The heating jacket 2 is prior art and will not be described in detail here. The heating jacket 2 heats the raw material in the concentration tank 1. The heating jacket 2 is connected to a heat source. The concentration tank 1 is connected to a vacuum pump 4 and a condenser 5. The vacuum pump 4 draws a low-pressure environment into the concentration tank 1 to lower the boiling point inside the concentration tank 1. After boiling, the material enters the condenser 5 for condensation and collection. The upper and lower ends of the concentration tank 1 are respectively provided with a feed valve and a discharge valve.

[0020] The inner wall of the concentration tank 1 is inclined, and the interior of the concentration tank 1 has a shape with a large inner diameter at the upper end and a small inner diameter at the lower end. A drive assembly 8 is provided at the upper end of the concentration tank 1. The drive assembly 8 includes a vertically extending telescopic transmission shaft 9. The telescopic transmission shaft 9 is existing technology and will not be described in detail here. The drive assembly 8 is provided with a power cord that is connected to an external power source.

[0021] The upper end of the concentration tank 1 is provided with a limiting tube 10 sleeved on the outside of the telescopic drive shaft 9. The upper end of the limiting tube 10 is closed and the lower end is open. The drive assembly 8 is installed above the limiting tube 10. Inside the limiting tube 10, there is a lifting ring 11 that is rotatably connected to the telescopic drive shaft 9. A bearing seat is provided on the lifting ring 11. The telescopic drive shaft 9 is installed in the bearing seat. A piston 12 is fixedly provided at the upper end of the lifting ring 11 and is sealed to both the limiting tube 10 and the telescopic drive shaft 9.

[0022] The lower end of the limiting tube 10 is provided with a compression elastic element 13 connected to the lifting ring 11, and the lower end of the telescopic transmission shaft 9 is connected with a scraper 14 adapted to the shape of the inner wall of the concentration tank 1. Under the elastic force of the compression elastic element 13, the lifting plate pushes the piston 12 to rise, and the scraper 14 disengages from the interior of the concentration tank 1. When it is necessary to clean the inner wall of the concentration tank 1, the vacuum pump 4 is used to adjust the air pressure in the concentration tank 1 to a lower pressure state. Under the action of air pressure, the piston 12 descends and compresses the lifting ring 11 and the telescopic transmission shaft 9 to extend. The scraper 14 descends and contacts the inner wall of the concentration tank 1. The drive assembly 8 uses the telescopic transmission shaft 9 to drive the scraper 14 to rotate and clean the interior of the concentration tank 1.

[0023] Example 2: A vacuum concentration device for the production of L-seleno-methylselenocysteine ​​includes a concentration tank 1, and a heating jacket 2 is provided on the outside of the concentration tank 1. The heating jacket 2 is prior art and will not be described in detail here. The heating jacket 2 heats the raw material in the concentration tank 1. The heating jacket 2 is connected to a heat source. Multiple heat exchange fins 3 are provided on the outer wall of the concentration tank 1. The heat exchange fins 3 are all located inside the heating jacket 2. The heat exchange fins 3 increase the heat exchange area and improve the heat exchange efficiency.

[0024] The concentration tank 1 is connected to a vacuum pump 4 and a condenser 5. The vacuum pump 4 creates a low-pressure environment inside the concentration tank 1, which lowers the boiling point inside the concentration tank 1. After boiling, the material enters the condenser 5 for condensation and collection. The concentration tank 1 is equipped with a pressure sensor 6 and a temperature sensor 7 to monitor the pressure and temperature inside the concentration tank 1. The upper and lower ends of the concentration tank 1 are respectively equipped with a feed valve and a discharge valve.

[0025] The inner wall of the concentration tank 1 is inclined, and the interior of the concentration tank 1 has a shape with a large inner diameter at the upper end and a small inner diameter at the lower end. A drive assembly 8 is provided at the upper end of the concentration tank 1. The drive assembly 8 includes a vertically extending telescopic transmission shaft 9. The telescopic transmission shaft 9 is existing technology and will not be described in detail here. The drive assembly 8 is provided with a power cord that is connected to an external power source.

[0026] The upper end of the concentration tank 1 is provided with a limiting tube 10 sleeved on the outside of the telescopic drive shaft 9. The upper end of the limiting tube 10 is closed and the lower end is open. The drive assembly 8 is installed above the limiting tube 10. Inside the limiting tube 10, there is a lifting ring 11 that is rotatably connected to the telescopic drive shaft 9. A bearing seat is provided on the lifting ring 11. The telescopic drive shaft 9 is installed in the bearing seat. A piston 12 is fixedly provided at the upper end of the lifting ring 11 and is sealed to both the limiting tube 10 and the telescopic drive shaft 9.

[0027] The lower end of the limiting tube 10 is provided with a compression elastic element 13 connected to the lifting ring 11. The compression elastic element 13 is a compression spring. The lower end of the telescopic transmission shaft 9 is connected with a scraper 14 adapted to the shape of the inner wall of the concentration tank 1. Under the elastic force of the compression elastic element 13, the lifting plate pushes the piston 12 to rise, and the scraper 14 disengages from the interior of the concentration tank 1. The lower end of the limiting tube 10 is provided with an installation ring 15. The installation ring 15 has multiple guide holes vertically opened. A guide shaft 16 is vertically slidably arranged in the guide holes. The guide shaft 16 is fixedly connected to the lifting ring 11 to make the lifting of the lifting plate more stable. The upper end face of the concentration tank 1 is provided with an observation window 17. The observation window 17 is used to observe the positional relationship between the scraper 14 and the inner wall of the concentration tank 1.

[0028] The working principle is as follows:

[0029] During normal vacuum concentration operations, the vacuum pump 4 regulates the gas pressure in the concentration tank 1 to a low-pressure state, reducing the boiling point of the raw material in the concentration tank 1. The heating jacket 2 heats the raw material, and the raw material that reaches the boiling point enters the condenser 5 for condensation and collection. When the inner wall of the concentration tank 1 needs to be cleaned after a period of use, the vacuum pump 4 regulates the gas pressure in the concentration tank 1 to an even lower pressure state. Under the action of the gas pressure, the piston 12 descends and compresses the lifting ring 11 and the telescopic drive shaft 9 to extend. The scraper 14 descends and contacts the inner wall of the concentration tank 1. The drive assembly 8 uses the telescopic drive shaft 9 to drive the scraper 14 to rotate and clean the inside of the concentration tank 1.

[0030] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A vacuum concentration apparatus for the production of L-seleno-methylselenocysteine, characterized in that: The system includes a concentration tank (1), which is fitted with a heating jacket (2). The concentration tank (1) is connected to a vacuum pump (4) and a condenser (5). The inner wall of the concentration tank (1) is inclined. A drive assembly (8) is provided at the upper end of the concentration tank (1). The drive assembly (8) includes a vertically extending telescopic drive shaft (9). A limiting tube (10) is provided at the upper end of the concentration tank (1) and fitted outside the telescopic drive shaft (9). A lifting ring (11) is provided inside the limiting tube (10) and rotatably connected to the telescopic drive shaft (9). A piston (12) is fixedly provided at the upper end of the lifting ring (11) and sealed to both the limiting tube (10) and the telescopic drive shaft (9). A compression elastic element (13) connected to the lifting ring (11) is provided at the lower end of the limiting tube (10). A scraper (14) adapted to the shape of the inner wall of the concentration tank (1) is connected to the lower end of the telescopic drive shaft (9).

2. The vacuum concentration apparatus for producing L-seleno-methylselenocysteine ​​as described in claim 1, characterized in that: The outer wall of the concentration tank (1) is provided with multiple heat exchange fins (3), and the heat exchange fins (3) are all located inside the heating jacket (2).

3. The vacuum concentration apparatus for producing L-seleno-methylselenocysteine ​​as described in claim 1, characterized in that: The lower end of the limiting tube (10) is provided with an installation ring (15), the installation ring (15) has multiple guide holes vertically, and a guide shaft (16) is vertically slidably arranged in the guide hole. The guide shaft (16) is fixedly connected to the lifting ring (11).

4. The vacuum concentration apparatus for producing L-seleno-methylselenocysteine ​​as described in claim 1, characterized in that: The concentration tank (1) is equipped with a pressure sensor (6) and a temperature sensor (7).

5. The vacuum concentration apparatus for producing L-seleno-methylselenocysteine ​​as described in claim 1, characterized in that: An observation window (17) is provided on the upper end face of the concentration tank (1).

6. The vacuum concentration apparatus for producing L-seleno-methylselenocysteine ​​as described in claim 1, characterized in that: The compression elastic element (13) is a compression spring.

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