Decoloring device for serinol production

Abstract

The utility model discloses a serinol production decolorizing device, including pre-decolorizing tank and decolorizing tank, the decolorizing tank is installed at the bottom of pre-decolorizing tank, the middle of pre-decolorizing tank and the middle of decolorizing tank are connected into a whole through a connecting block, the top of pre-decolorizing tank is provided with a motor, a coupling, a liquid inlet and a decolorizing agent inlet, the motor is connected with the top of a stirring shaft through the coupling, and the motor is connected with the top of the stirring shaft through the coupling. The bottom end of the stirring shaft penetrates through the connecting block and extends into the decoloring tank, a concave bottom groove is formed in the bottom of the pre-decoloring tank and the outer side of the connecting block, a liquid discharging pipe connected with the decoloring tank is arranged at the bottom of the bottom groove, and a liquid outlet and an ultrasonic transducer are arranged at the bottom of the decoloring tank; a spiral blade and a bottom scraping blade are arranged on the stirring shaft; according to the utility model, the pre-decolorizing tank and the decolorizing tank are combined into the decolorizing device, serinol and a decolorizing agent are preliminarily mixed and stirred in the pre-decolorizing tank, after the preliminary reaction is finished, the serinol and the decolorizing agent enter the decolorizing tank to be subjected to decolorizing reaction again, and the reactions in the pre-decolorizing tank and the decolorizing tank are mutually independent and do not influence each other.

Description

Technical Field

[0001] The utility model relates to the technical field of serinol production devices, and particularly relates to a serinol production decolorization device. Background Art

[0002] Serinol (chemical name: 2-amino-1,3-propanediol) is a pharmaceutical intermediate and the main raw material for synthesizing iopamidol (medical name: iodixanol). Iopamidol is a non-ionic contrast agent and is widely used as a diagnostic reagent for the blood system, lymphatic system, urinary system, and nervous system in developed foreign countries. In the preparation process of serinol, there is a decolorization treatment process, and before the decolorization treatment process, the serinol to be decolorized needs to be pretreated, that is, mixed with a decolorizing agent, to ensure the efficiency of subsequent processes. Existing decolorization devices generally adopt, for example, a decolorization auxiliary device for serinol for contrast agents with the patent number 2020207948345, which can only decolorize serinol in batches. After each batch of decolorization is completed, the machine needs to be stopped for the next batch of decolorization, and continuous decolorization treatment cannot be achieved. In view of the above problems, this application provides a solution. Content of the Utility Model

[0003] The purpose of the utility model is to provide a serinol production decolorization device.

[0004] The above technical purpose of the utility model is achieved through the following technical solutions:

[0005] A serinol production decolorization device includes a pre-decolorization tank and a decolorization tank. The decolorization tank is installed at the bottom of the pre-decolorization tank, and the two are connected into one body through a connecting block. The top of the pre-decolorization tank is provided with a motor, a coupling, a liquid inlet, and a decolorizing agent inlet. The motor is connected to the top of the stirring shaft through the coupling. The bottom end of the stirring shaft passes through the connecting block and extends into the decolorization tank. The bottom of the pre-decolorization tank and the outside of the connecting block are provided with a concave bottom groove. The bottom of the bottom groove is provided with a liquid discharge pipe connected to the decolorization tank. A solenoid valve I is installed on the liquid discharge pipe. The bottom of the decolorization tank is provided with a liquid outlet and an ultrasonic transducer. A solenoid valve II is installed on the liquid outlet; the stirring shaft is provided with a spiral blade and a bottom scraping blade. The bottom scraping blade is an inclined rectangular blade, and the bottom of the bottom scraping blade is arranged in contact with the bottom of the bottom groove.

[0006] Further, the bottom of the decolorization tank is set to be conical, and the bottom end of the stirring shaft is provided with a corresponding conical stirring blade.

[0007] Further, the number of the liquid discharge pipes is multiple, and the multiple liquid discharge pipes are evenly distributed at the bottom of the bottom groove.

[0008] Further, the number of the ultrasonic transducers is multiple, and the multiple ultrasonic transducers are all installed at the bottom of the decolorization tank.

[0009] Further, a jacket is installed on the outer wall of the decolorization tank.

[0010] Further, lifting lugs are provided on the outer walls of the pre-decolorization tank and the decolorization tank, and the pre-decolorization tank and the decolorization tank are hoisted on the mounting frame through the lifting lugs.

[0011] In summary, the present utility model has the following beneficial effects: The present utility model combines the pre-decolorization tank and the decolorization tank into a decolorization device. First, serinol and the decolorizing agent are initially mixed and stirred in the pre-decolorization tank. After the initial reaction ends, it enters the decolorization tank for further decolorization reaction. The reactions in the pre-decolorization tank and the decolorization tank are independent of each other and do not affect each other. Description of the Drawings

[0012] Figure 1 is the overall structural schematic diagram of the present utility model;

[0013] Figure 2 is the structural schematic diagram of the decolorization tank of the present utility model.

[0014] In the figure, 1, pre-decolorization tank; 2, decolorization tank; 3, motor; 4, coupling; 5, liquid inlet; 6, decolorizing agent inlet; 7, stirring shaft; 8, spiral blade; 9, bottom scraping blade; 10, bottom tank; 11, lower liquid pipe; 12, solenoid valve 1; 13, connecting block; 14, conical stirring blade; 15, liquid outlet; 16, solenoid valve 2; 17, ultrasonic transducer; 18, jacket; 19, lifting lug. Detailed Embodiments

[0015] The following further describes the present utility model in detail with reference to the drawings. The technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0016] Such as Figure 1 and Figure 2As shown in the figure, a decolorization device for serine alcohol production includes a pre-decolorization tank 1 and a decolorization tank 2. The decolorization tank 2 is installed at the bottom of the pre-decolorization tank 1, and the two are connected into one body through a connecting block 13. At the top of the pre-decolorization tank 1, there are a motor 3, a coupling 4, a liquid inlet 5 and a decolorizing agent inlet 6. The motor 3 is connected to the top of the stirring shaft 7 through the coupling 4. The bottom end of the stirring shaft 4 passes through the connecting block 13 and extends into the decolorization tank 2. At the bottom of the pre-decolorization tank 1 and on the outside of the connecting block 13, there is a concave bottom groove 10. At the bottom of the bottom groove 10, there is a downward liquid pipe 11 connected to the decolorization tank 2. A solenoid valve 12 is installed on the downward liquid pipe 11. At the bottom of the decolorization tank 2, there is a liquid outlet 15 and an ultrasonic transducer 17. A solenoid valve 16 is installed on the liquid outlet 15; on the stirring shaft 7, there are a spiral blade 8 and a bottom scraping blade 9. The bottom scraping blade 9 is an inclined rectangular blade, and the bottom of the bottom scraping blade 9 is arranged in contact with the bottom of the bottom groove 10 to prevent the material from settling at the bottom.

[0017] Furthermore, the bottom of the decolorization tank 2 is set to be conical, and at the bottom end of the stirring shaft 7, there is a corresponding conical stirring blade 14. With the above settings, the stirring and mixing effect is ensured.

[0018] Furthermore, the number of the downward liquid pipes 11 is multiple, and the multiple downward liquid pipes 11 are evenly distributed at the bottom of the bottom groove 10, which can prevent the blockage of a certain downward liquid pipe and affect the production.

[0019] Furthermore, the number of the ultrasonic transducers 17 is multiple, and the multiple ultrasonic transducers 17 are all installed at the bottom of the decolorization tank 2. By providing vibration through the ultrasonic transducers 17, the mixing reaction between serine alcohol and the decolorizing agent is accelerated.

[0020] Furthermore, a jacket 18 is installed on the outer wall of the decolorization tank 2. By introducing hot water or cold water into the jacket 18, the internal temperature of the decolorization tank 2 is controlled to ensure the reaction temperature.

[0021] Furthermore, lifting lugs 19 are provided on the outer walls of both the pre-decolorization tank 1 and the decolorization tank 2. The pre-decolorization tank 1 and the decolorization tank 2 are hoisted on the mounting rack through the lifting lugs 19.

[0022] Working principle: The serine alcohol material is added into the pre-decolorization tank 1 from the liquid inlet 5, and the decolorizing agent is added from the decolorizing agent inlet 6. Then, the motor 3 drives the stirring shaft 7 to rotate for preliminary mixing. After the preliminary reaction between the serine alcohol material and the decolorizing agent in the pre-decolorization tank 1 is completed, the solenoid valve 12 is opened, and the material in the pre-decolorization tank 1 enters the decolorization tank 2 through the downward liquid pipe 11 for mixing reaction. After the pre-decolorization tank 1 is emptied, new material can be added for pre-decolorization, while the material in the decolorization tank 2 undergoes a decolorization reaction. After the decolorization is completed, the solenoid valve 16 is opened again to convey the decolorized serine alcohol to the next process step. After the decolorization tank 2 is emptied, the solenoid valve 12 can be opened to add the material in the pre-decolorization tank 1, and so on in a cycle.

[0023] This specific embodiment is only an interpretation of the present utility model, and it is not a limitation to the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment that do not contribute creatively as needed, but as long as it is within the scope of the claims of the present utility model, it is protected by the patent law.

Claims

1. A decolorization device for producing serinol, characterized in that: The invention comprises a pre-decolorizing tank (1) and a decolorizing tank (2), wherein the decolorizing tank (2) is installed at the bottom of the pre-decolorizing tank (1), and the two are connected to form a whole through a connecting block (13). The top of the pre-decolorizing tank (1) is provided with a motor (3), a coupling (4), a liquid inlet (5) and a decolorizing agent inlet (6). The motor (3) is connected to the top of a stirring shaft (7) through the coupling (4), and the bottom end of the stirring shaft (7) passes through the connecting block (13) and extends into the stirring shaft (7). In the decolorizing tank (2), a concave bottom groove (10) is provided at the bottom of the pre-decolorizing tank (1) and the outer side of the connecting block (13); a lower liquid pipe (11) connected to the decolorizing tank (2) is provided at the bottom of the bottom groove (10); a solenoid valve 1 (12) is installed on the lower liquid pipe (11); a liquid outlet (15) and an ultrasonic transducer (17) are provided at the bottom of the decolorizing tank (2); and a solenoid valve 2 (16) is installed on the liquid outlet (15); The stirring shaft (7) is provided with a spiral blade (8) and a bottom scraping blade (9); the bottom scraping blade (9) is an inclined rectangular blade, and the bottom of the bottom scraping blade (9) is arranged to fit the bottom of the bottom groove (10).

2. A serinol production and decolorization device according to claim 1, characterized in that: The bottom of the decolorizing tank (2) is arranged in a conical shape, and the bottom end of the stirring shaft (7) is provided with a corresponding conical stirring blade (14).

3. A serinol production and decolorization device according to claim 2, characterized in that: There are a plurality of downpipes (11), and the plurality of downpipes (11) are evenly distributed at the bottom of the bottom tank (10).

4. A serinol production and decolorization device according to claim 3, characterized in that: There are multiple ultrasonic transducers (17), and the multiple ultrasonic transducers (17) are all installed at the bottom of the decolorizing tank (2).

5. A serinol production and decolorization device according to claim 4, characterized in that: The outer wall of the decolorizing tank (2) is provided with a jacket (18).

6. A serinol production and decolorization device according to claim 5, characterized in that: The outer walls of the pre-decolorizing tank (1) and the decolorizing tank (2) are both provided with lifting ears (19), and the pre-decolorizing tank (1) and the decolorizing tank (2) are hoisted on the mounting frame via the lifting ears (19).

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