A high purity extraction apparatus for amino pyridines

Abstract

The utility model relates to amino pyridine production technical field, and disclose a kind of high-purity extraction device of amino pyridine, including water bath cylinder, the inside center of water bath cylinder is provided with extraction tank, extraction tank bottom and both sides are all distance water bath cylinder bottom and cylinder wall 15 centimeter, extraction tank center is provided with one upper and lower through central perforation, water bath cylinder inside fills water body also fills central perforation inside, the inside of extraction tank is provided with annular purification cavity around central perforation, the top right side of purification tank is equipped with water vapor export pipe, the bottom center of water bath cylinder is equipped with liquid equalizing turbine. The amino pyridine high-purity extraction device is through rational structural design, realizes the effective control to temperature, position, stirring liquid equalizing and purification liquid extraction etc. Key link in extraction process. Temperature control aspect, the unique heat exchange structure and electric heating tube setting ensure stable and suitable extraction temperature environment;Positioning design guarantees the stability of extraction tank in water bath cylinder.

Description

Technical Field

[0001] This utility model relates to the field of aminopyridine production technology, specifically to a high-purity extraction device for aminopyridine. Background Technology

[0002] Aminopyridines are an important class of organic compounds with wide applications in medicine, pesticides, and other fields. High-purity extraction is one of the key steps in their processing.

[0003] Currently, existing aminopyridine purification equipment has many shortcomings. Traditional purification methods often struggle to precisely control temperature conditions during extraction, which can lead to decomposition or other side reactions of aminopyridine, thus affecting the purity and quality of the product. Furthermore, the temperature distribution inside the water bath of existing equipment is uneven, with localized overheating or undercooling being common. This not only reduces extraction efficiency but may also adversely affect the structure and properties of aminopyridine. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a high-purity extraction device for aminopyridine, which solves the problems of uneven temperature distribution inside the water bath of the existing devices, local overheating or undercooling, which leads to reduced extraction efficiency and adverse effects on the structure and properties of aminopyridine.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-purity extraction device for aminopyridine, comprising a water bath, a purification tank disposed at the center of the water bath, the bottom and sides of the purification tank being 15 cm away from the bottom and wall of the water bath, a central through-hole being opened in the center of the purification tank, the water bath being filled with water and also filling the central through-hole, an annular purification cavity surrounding the central through-hole being disposed inside the purification tank, a steam outlet pipe being installed on the right side of the top of the purification tank, and a liquid equalization turbine being installed at the center of the bottom of the water bath.

[0008] As a preferred technical solution of this utility model, the top of the purification tank is sealed.

[0009] As a preferred technical solution of this utility model, an electric heating tube is installed inside the wall of the water bath.

[0010] As a preferred technical solution of this utility model, connecting blocks for positioning the purification tank are installed at the front, rear, left and right positions of the upper port of the water bath cylinder.

[0011] As a preferred technical solution of this utility model, a feed valve pipe is installed at the top of the purification tank.

[0012] As a preferred technical solution of this utility model, a rotating drive component for driving the liquid equalization turbine is installed at the bottom of the water bath.

[0013] As a preferred technical solution of this utility model, the rotary drive component includes a drive motor, a drive gear, a transmission gear, and a drive shaft. The drive motor is installed at the bottom of the water bath, the drive gear is connected to the output end of the drive motor, the transmission gear meshes with the drive gear, the drive shaft is connected to the center of the transmission gear, and the top end of the drive shaft is connected to the center of the liquid equalization turbine.

[0014] As a preferred technical solution of this utility model, a purification liquid extraction mechanism adapted to the purification tank is provided on the left side of the outside of the water bath. The purification liquid extraction mechanism includes a liquid pump, a liquid guide tube, and a liquid extraction tube. The liquid pump is located on the left side outside the water bath. The liquid guide tube is connected to the liquid extraction end of the liquid pump. There are four liquid extraction tubes distributed inside the central perforation. All four liquid guide tubes are L-shaped. The bent ends of the four liquid guide tubes lead to the bottom of the annular purification chamber in the four directions of front, back, left, and right. The top ends of the four liquid guide tubes are connected to the liquid guide tube.

[0015] Compared with the prior art, this utility model provides a high-purity extraction device for aminopyridine, which has the following beneficial effects: This high-purity aminopyridine extraction device, through its rational structural design, effectively controls key aspects of the extraction process, including temperature, position, stirring and homogenization, and extraction of the purified solution. In terms of temperature control, a unique heat exchange structure and electric heating element ensure a stable and suitable extraction temperature environment; the positioning design guarantees the stability of the purification tank within the water bath; the stirring and homogenization mechanism ensures uniform water temperature, which is beneficial for improving extraction efficiency and quality; and the purified solution extraction mechanism facilitates subsequent purification operations, effectively extracting the purified solution from the annular purification chamber for further processing. These designs work together to enable the device to efficiently and stably extract high-purity aminopyridine, providing reliable technical support for related production processes, helping to improve product quality and production efficiency, and meeting market demand for high-purity aminopyridine. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the half-section structure of this utility model; Figure 3 This is a schematic diagram of the purified liquid extraction mechanism of this utility model; Figure 4 This is a schematic diagram of the structure of the rotary drive component of this utility model.

[0017] The components include: 1. Water bath; 2. Purification tank; 3. Purification liquid extraction mechanism; 4. Equalization turbine; 5. Rotary drive component; 6. Steam outlet pipe. 11. Electric heating element; 12. Connecting block; 21. Central perforation; 22. Annular purification chamber; 23. Feed valve pipe; 31. Liquid pump; 32. Liquid delivery pipe; 33. Liquid extraction pipe; 51. Drive motor; 52. Drive gear; 53. Transmission gear; 54. Drive shaft. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the utility model, and not all of them. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the utility model without creative effort are within the scope of protection of the utility model.

[0019] It should be noted that if the utility model embodiment involves directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0020] Furthermore, "multiple" refers to two or more. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the utility model.

[0021] Please see Figure 1-4 A high-purity extraction device for aminopyridine: The extraction device mainly consists of a water bath 1, a purification tank 2, a purification liquid extraction mechanism 3, a rotary drive 5, and a steam outlet pipe 6.

[0022] The water bath 1 is a cylindrical body with a purification tank 2 located at its center. The bottom and sides of the purification tank 2 are 15 cm away from the bottom and wall of the water bath 1. This arrangement allows the purification tank 2 to fully exchange heat with the water inside the water bath 1, ensuring that the extraction process takes place at a suitable temperature. The interior of the water bath 1 is filled with water, which also fills the central perforation 21 of the purification tank 2, allowing the purification tank 2 to be completely surrounded by water for better heating.

[0023] The purification tank 2 has a central through-hole 21 running vertically through its center, and an annular purification cavity 22 surrounding the central through-hole 21 is arranged inside it. The top of the purification tank 2 is closed, and a water vapor outlet pipe 6 is installed on the right side of the top to export the water vapor generated during the extraction process.

[0024] An electric heating tube 11 is installed inside the wall of the water bath 1. By adjusting the power and heating time of the electric heating tube 11, the water temperature can be controlled within the required extraction temperature range, ensuring that the extraction process is carried out in a stable thermal environment, which is conducive to the effective extraction of aminopyridine.

[0025] Connecting blocks 12 are installed at the front, back, left and right sides of the upper port of the water bath 1 to position the purification tank 2 and ensure that the purification tank 2 is stable inside the water bath 1.

[0026] The top of the purification tank 2 is equipped with a feed valve pipe 23, which facilitates the addition of the raw material to be extracted into the purification tank 2.

[0027] A rotary drive component 5 is installed at the bottom of the water bath 1. The rotary drive component 5 includes a drive motor 51, a drive gear 52, a transmission gear 53, and a drive shaft 54. The drive motor 51 is installed at the bottom of the water bath 1. The drive gear 52 is connected to the output end of the drive motor 51. The transmission gear 53 meshes with the drive gear 52. The drive shaft 54 ​​is connected to the center of the transmission gear 53 and is opposite to it. The top end of the drive shaft 54 ​​is opposite to the center of the liquid equalization turbine 4. The drive motor 51 drives the drive gear 52 to rotate, which in turn drives the liquid equalization turbine 4 to rotate through the transmission gear 53 and the drive shaft 54, thereby achieving the stirring and equalization of the water in the water bath 1, ensuring that the temperature is kept constant throughout the water bath 1.

[0028] A purification liquid extraction mechanism 3, adapted to the purification tank 2, is installed on the left side of the water bath 1. The purification liquid extraction mechanism 3 includes a pump 31, a guide pipe 32, and a suction pipe 33. The pump 31 is located on the left side of the water bath 1. The guide pipe 32 is connected to the suction end of the pump 31. Four suction pipes 33 are correspondingly distributed inside the central perforation 21, and all four guide pipes 32 are L-shaped. The bent ends of the four guide pipes 32 lead to the bottom, front, back, left, and right sides of the annular purification chamber 22, respectively. The top ends of the four guide pipes 32 are connected to the guide pipe 32. The purification liquid in the annular purification chamber 22 can be extracted by the pump 31 for subsequent processing.

[0029] In operation, the raw material to be extracted is added to the purification tank 2 through the feed valve pipe 23. Then, the water in the water bath 1 is heated by the electric heating pipe 11, raising the water temperature and allowing the raw material to be extracted within the purification tank 2. Simultaneously, the drive motor 51 rotates the homogenizing turbine 4 to stir and homogenize the water, ensuring uniform heating. Water vapor generated during extraction is discharged through the water vapor outlet pipe 6. After extraction, the liquid extraction pump 31 is started, and the purified liquid is extracted from the annular purification chamber 22 through the liquid guide pipe 32 and the liquid extraction pipe 33 for further processing.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-purity extraction device for aminopyridine, comprising a water bath (1), characterized in that: A purification tank (2) is provided in the center of the water bath (1). The bottom and sides of the purification tank (2) are 15 cm away from the bottom and wall of the water bath (1). A central through hole (21) is opened in the center of the purification tank (2). The water bath (1) is filled with water and also fills the central through hole (21). An annular purification cavity (22) is provided in the purification tank (2) surrounding the central through hole (21). A steam outlet pipe (6) is installed on the right side of the top of the purification tank (2). A liquid equalization turbine (4) is installed in the center of the bottom of the water bath (1).

2. The high-purity extraction device for aminopyridine according to claim 1, characterized in that: The top of the purification tank (2) is closed.

3. The high-purity extraction device for aminopyridine according to claim 1, characterized in that: An electric heating tube (11) is installed inside the wall of the water bath (1).

4. The high-purity extraction device for aminopyridine according to claim 1, characterized in that: Connecting blocks (12) for positioning the purification tank (2) are installed at the front, back, left and right sides of the upper port of the water bath (1).

5. The high-purity extraction device for aminopyridine according to claim 1, characterized in that: The purification tank (2) is equipped with a feed valve pipe (23) at the top.

6. The high-purity extraction apparatus for aminopyridine according to claim 1, characterized in that: The bottom of the water bath (1) is equipped with a rotating drive (5) that drives the liquid equalization turbine (4).

7. The high-purity extraction apparatus for aminopyridine according to claim 6, characterized in that: The rotary drive component (5) includes a drive motor (51), a drive gear (52), a transmission gear (53), and a drive shaft (54). The drive motor (51) is mounted on the bottom of the water bath (1). The drive gear (52) is connected to the output end of the drive motor (51). The transmission gear (53) meshes with the drive gear (52). The drive shaft (54) is connected to the center of the transmission gear (53). The top end of the drive shaft (54) is connected to the center of the liquid equalization turbine (4).

8. The high-purity extraction apparatus for aminopyridine according to claim 1, characterized in that: A purification liquid extraction mechanism (3) adapted to the purification tank (2) is provided on the left side of the outside of the water bath (1). The purification liquid extraction mechanism (3) includes a liquid pump (31), a liquid guide tube (32) and a liquid extraction tube (33). The liquid pump (31) is located on the left side outside the water bath (1). The liquid guide tube (32) is connected to the liquid extraction end of the liquid pump (31). There are four liquid extraction tubes (33) distributed inside the central perforation (21). All four liquid guide tubes (32) are L-shaped. The bent ends of the four liquid guide tubes (32) are respectively connected to the bottom of the annular purification chamber (22) in the four directions of front, back, left and right. The top ends of the four liquid guide tubes (32) are connected to the liquid guide tube (32).

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