Capsaicin continuous multistage crystallization self-cleaning production device

By using sealing rings and guide plates in a multi-stage crystallizer, the problem of poor adhesion between the scraper and the vessel wall was solved, achieving efficient cleaning of the capsaicin crystallizer and smooth discharge of crystals.

CN224485007UActive Publication Date: 2026-07-14YUNNAN VARITASTE FLAVORING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN VARITASTE FLAVORING CO LTD
Filing Date
2025-08-18
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In the production of capsaicin, existing multi-stage crystallizers have poor adhesion between the scraper and the inner wall of the reactor, resulting in unsatisfactory cleaning effect, and crystals tend to adhere to the springs, affecting their elasticity.

Method used

A sealing ring is used to fill the gap between the connecting column and the receiving cavity port. Combined with the design of the guide plate and spring, it ensures that the scraper fits in close contact with the vessel wall, and the sealing ring prevents raw materials from entering the receiving cavity while maintaining the spring force.

Benefits of technology

It effectively prevents crystals from adhering to the spring, ensuring the cleaning effect of the scraper on the reactor wall, and the spiral blades prevent material blockage, thus improving cleaning efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a continuous multistage crystallization self-cleaning production device of capsicum alkaloid belongs to crystallization kettle technical field, continuous multistage crystallization self-cleaning production device of capsicum alkaloid, including crystallization kettle, the reduction motor of the crystallization kettle top through support installation, install the disc cover of the crystallization kettle outside, set up the crystallization export of the crystallization kettle bottom and install control valve on the crystallization export, the inside rotation of crystallization kettle is connected with drive shaft, and the top of drive shaft is connected with the power output shaft of reduction motor through the joint, fixedly connected with the stirring rod on drive shaft, it fills the clearance of the joint part of storage cavity port with connecting column by sealing rubber ring, thereby can effectively prevent raw materials to enter the inside of storage cavity, and then prevent crystalline body from adhering on spring, can effectively guarantee the elasticity of spring, guarantee the effect that the scraper is cleaned to the inner wall of crystallization kettle.
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Description

Technical Field

[0001] This utility model relates to the field of crystallization reactor technology, and more specifically, to a self-cleaning production device for continuous multi-stage crystallization of capsaicin. Background Technology

[0002] A multi-stage crystallizer refers to a crystallization column with inlets and outlets for the crystallizing liquid at its upper and lower ends, respectively. A jacket is installed outside the crystallization column, with inlets and outlets for hot and cold media at its upper and lower ends. The key feature is that the crystallization column and jacket are repeatedly arranged in two or more stages, with each stage connected by a sealed connection. Multi-stage crystallizers are required in the production of capsaicin.

[0003] In existing multi-stage crystallizers for capsaicin production, scrapers are typically installed on the stirring shaft in conjunction with springs. The scrapers are brought into contact with the inner wall of the clean vessel for cleaning. However, the springs are exposed on the inside of the crystallization vessel, causing some crystals to adhere to them, which affects the spring's elasticity. This results in poor adhesion between the scraper and the inner wall of the vessel, thus affecting the cleaning effect. Therefore, we propose a continuous multi-stage crystallization self-cleaning production device for capsaicin to solve the above-mentioned problems. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a self-cleaning production device for continuous multi-stage crystallization of capsaicin. It utilizes a sealing rubber ring to fill the gap at the junction of the connecting column and the receiving cavity port, thereby effectively preventing raw materials from entering the inner side of the receiving cavity and preventing crystals from adhering to the spring. This effectively ensures the elasticity of the spring and guarantees the cleaning effect of the scraper on the inner wall of the crystallization vessel.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A continuous multi-stage crystallization self-cleaning production device for capsaicin includes a crystallization kettle, a geared motor mounted on the top of the crystallization kettle via a bracket, a disc sleeve mounted on the outside of the crystallization kettle, a crystallization outlet located at the bottom of the crystallization kettle, and a control valve mounted on the crystallization outlet. A drive shaft is rotatably connected to the inner side of the crystallization kettle, and the top end of the drive shaft is connected to the power output shaft of the geared motor via a coupling.

[0009] A stirring rod is fixedly connected to the drive shaft;

[0010] A connecting rod is provided on one side of the stirring rod, and its root is fixedly connected to the drive shaft. The end of the connecting rod has a storage cavity with a convex structure. A sealing ring is embedded inside the port of the storage cavity, and a spring is installed inside the storage cavity.

[0011] The outer side of the receiving cavity is provided with a scraper that abuts against the inner wall of the crystallization vessel. A connecting column extending to the inner side of the receiving cavity is connected to the scraper, and the end of the connecting column is connected to a guide plate located inside the receiving cavity.

[0012] Furthermore, a spiral blade extending to the inner side of the crystallization outlet is welded to the bottom end of the drive shaft, and the outer diameter of the spiral blade is adapted to the inner diameter of the crystallization outlet.

[0013] Furthermore, one end of the spring is connected to the end wall of the receiving cavity, and the other end of the spring is connected to the guide plate.

[0014] Furthermore, the outer wall of the connecting column is in contact with the sealing ring.

[0015] Furthermore, the outer wall of the guide plate abuts against the inner wall of the receiving cavity.

[0016] Furthermore, multiple sets of stirring rods are equidistantly arranged at the axial position of the drive shaft, and two stirring rods are symmetrically arranged at the radial position of the drive shaft in each set.

[0017] Furthermore, multiple sets of connecting rods are equidistantly arranged at the axial position of the transmission shaft, and two connecting rods are symmetrically arranged at the radial position of the transmission shaft in each set.

[0018] 3. Beneficial effects

[0019] Compared with existing technologies, the advantages of this utility model are:

[0020] (1) In this scheme, the transmission shaft is continuously rotated by the geared motor, which in turn drives the connecting rod to rotate synchronously. The spring located inside the receiving cavity abuts against the guide plate, so that the scraper connected at the connecting column is always in contact with the inner wall of the crystallizer. At the same time, the gap between the connecting column and the receiving cavity port is filled by the sealing rubber ring, which can effectively prevent the raw material from entering the inner side of the receiving cavity, thereby preventing the crystals from adhering to the spring. This can effectively ensure the elasticity of the spring and ensure the cleaning effect of the scraper on the inner wall of the crystallizer.

[0021] (2) In this scheme, after the capsaicin crystals are prepared in the crystallization kettle, the control valve on the crystallization outlet is opened, and the spiral blades located at the bottom of the transmission shaft are driven by the reduction motor to rotate, so that the capsaicin crystals can be effectively discharged through the crystallization outlet, which can effectively prevent material blockage. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a side view of the crystallization vessel of this utility model;

[0024] Figure 3 This is a cross-sectional schematic diagram of part AA of the crystallization vessel of this utility model;

[0025] Figure 4 This is an enlarged schematic diagram of part A of the present invention.

[0026] Explanation of the labels in the diagram:

[0027] 1. Crystallizer; 2. Gear motor; 3. Disc sleeve; 4. Crystallization outlet; 5. Control valve; 6. Drive shaft; 7. Stirring rod; 8. Connecting rod; 9. Storage cavity; 10. Sealing ring; 11. Scraper; 12. Connecting column; 13. Guide plate; 14. Spring; 15. Spiral blade. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] Example:

[0030] Please see Figures 1-4 A continuous multi-stage crystallization self-cleaning production device for capsaicin includes a crystallization kettle 1, a geared motor 2 mounted on the top of the crystallization kettle 1 via a bracket, a disc sleeve 3 mounted on the outside of the crystallization kettle 1, a crystallization outlet 4 located at the bottom of the crystallization kettle 1, and a control valve 5 mounted on the crystallization outlet 4. A drive shaft 6 is rotatably connected to the inner side of the crystallization kettle 1, and the top end of the drive shaft 6 is connected to the power output shaft of the geared motor 2 via a coupling.

[0031] A stirring rod 7 is fixedly connected to the drive shaft 6;

[0032] A connecting rod 8 is provided on one side of the stirring rod 7 and is fixedly connected to the drive shaft 6 at its root. A receiving cavity 9 with a convex structure is provided at the end of the connecting rod 8. A sealing ring 10 is embedded inside the port of the receiving cavity 9, and a spring 14 is installed inside the receiving cavity 9.

[0033] A scraper 11 is provided on the outside of the receiving cavity 9 to abut against the inner wall of the crystallization vessel 1. A connecting post 12 extending to the inside of the receiving cavity 9 is connected to the scraper 11. A guide plate 13 located inside the receiving cavity 9 is connected to the end of the connecting post 12.

[0034] It should be noted that when using this capsaicin continuous multi-stage crystallization self-cleaning production device, after the crystallization vessel 1 completes the capsaicin crystallization process, the control valve 5 is opened to allow the capsaicin crystals to be discharged through the crystallization outlet 4. Then, the geared motor 2 drives the transmission shaft 6 to rotate continuously, thereby driving the connecting rod 8 to rotate synchronously. The spring 14 located inside the receiving cavity 9 abuts against the guide plate 13, so that the scraper 11 connected at the connecting column 12 is always in contact with the inner wall of the crystallization vessel 1. At the same time, the sealing ring 10 fills the gap at the joint between the connecting column 12 and the port of the receiving cavity 9, thereby effectively preventing raw materials from entering the inner side of the receiving cavity 9, and thus preventing crystals from adhering to the spring 14. This effectively ensures the elasticity of the spring 14 and guarantees the cleaning effect of the scraper 11 on the inner wall of the crystallization vessel 1.

[0035] like Figure 3 As shown, a spiral blade 15 extending to the inside of the crystallization outlet 4 is welded to the bottom end of the drive shaft 6, and the outer diameter of the spiral blade 15 is matched with the inner diameter of the crystallization outlet 4.

[0036] It should be noted that after the capsaicin crystals are prepared in the crystallization kettle 1, the control valve 5 on the crystallization outlet 4 is opened, and the spiral blade 15 located at the bottom of the transmission shaft 6 is driven to rotate by the reduction motor 2, so that the capsaicin crystals can be effectively discharged through the crystallization outlet 4, which can effectively prevent material blockage.

[0037] like Figure 4 As shown, one end of the spring 14 is connected to the end wall of the storage cavity 9, and the other end of the spring 14 is connected to the guide plate 13. The outer wall of the connecting post 12 is in contact with the sealing ring 10, and the outer wall of the guide plate 13 is in contact with the inner wall of the storage cavity 9.

[0038] It should be noted that by using the sealing ring 10 to fill the gap between the connecting post 12 and the port of the receiving cavity 9, the raw material can be effectively prevented from entering the inside of the receiving cavity 9, thereby preventing the crystals from adhering to the spring 14 and effectively ensuring the elasticity of the spring 14. At the same time, the guide plate 13 guides the connecting post 12, ensuring the stability of the scraper 11 during radial movement.

[0039] like Figure 3 As shown, multiple sets of stirring rods 7 are equidistantly arranged in the axial position of the drive shaft 6, and two stirring rods 7 are symmetrically arranged in the radial position of each set of the drive shaft 6.

[0040] It should be noted that uniform stirring of the raw material solution was ensured.

[0041] like Figure 3 As shown, multiple sets of connecting rods 8 are equidistantly arranged in the axial position of the transmission shaft 6, and two connecting rods 8 are symmetrically arranged in the radial position of the transmission shaft 6 in each set.

[0042] It should be noted that the two scrapers 11 are symmetrically connected by the connecting rod 8, which can effectively improve the cleaning efficiency.

[0043] In use: After the crystallization of capsaicin is completed in the crystallization vessel 1, the control valve 5 is opened to allow the capsaicin crystals to be discharged through the crystallization outlet 4. Then, the geared motor 2 drives the transmission shaft 6 to rotate continuously, thereby driving the connecting rod 8 to rotate synchronously. The spring 14 located inside the receiving cavity 9 abuts against the guide plate 13, so that the scraper 11 connected to the connecting column 12 is always in contact with the inner wall of the crystallization vessel 1. At the same time, the sealing ring 10 fills the gap at the joint between the connecting column 12 and the port of the receiving cavity 9, thereby effectively preventing the raw material from entering the inner side of the receiving cavity 9, and thus preventing the crystals from adhering to the spring 14. This effectively ensures the elasticity of the spring 14 and ensures the cleaning effect of the scraper 11 on the inner wall of the crystallization vessel 1.

[0044] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A continuous multi-stage crystallization self-cleaning production device for capsaicin, comprising a crystallization vessel (1), a reduction motor (2) mounted on the top of the crystallization vessel (1) via a bracket, a disc sleeve (3) mounted on the outside of the crystallization vessel (1), a crystallization outlet (4) located at the bottom of the crystallization vessel (1), and a control valve (5) mounted on the crystallization outlet (4), characterized in that: The inner side of the crystallization vessel (1) is rotatably connected to a drive shaft (6), and the top end of the drive shaft (6) is connected to the power output shaft of the geared motor (2) through a coupling. A stirring rod (7) is fixedly connected to the drive shaft (6); A connecting rod (8) is provided on one side of the stirring rod (7) and its root is fixedly connected to the drive shaft (6). The end of the connecting rod (8) is provided with a storage cavity (9) with a convex structure. A sealing ring (10) is embedded in the inner side of the port of the storage cavity (9). A spring (14) is installed in the inner side of the storage cavity (9). The outer side of the receiving cavity (9) is provided with a scraper (11) that abuts against the inner wall of the crystallizing vessel (1). A connecting post (12) extending to the inner side of the receiving cavity (9) is connected to the scraper (11). The end of the connecting post (12) is connected to a guide plate (13) located inside the receiving cavity (9).

2. The capsaicin continuous multi-stage crystallization self-cleaning production device according to claim 1, characterized in that: The bottom end of the drive shaft (6) is welded with a spiral blade (15) extending to the inside of the crystallization outlet (4), and the outer diameter of the spiral blade (15) is adapted to the inner diameter of the crystallization outlet (4).

3. The capsaicin continuous multi-stage crystallization self-cleaning production device according to claim 1, characterized in that: One end of the spring (14) is connected to the end wall of the receiving cavity (9), and the other end of the spring (14) is connected to the guide plate (13).

4. The capsaicin continuous multi-stage crystallization self-cleaning production device according to claim 1, characterized in that: The outer wall of the connecting column (12) is in contact with the sealing ring (10).

5. The capsaicin continuous multi-stage crystallization self-cleaning production device according to claim 1, characterized in that: The outer wall of the guide plate (13) abuts against the inner wall of the receiving cavity (9).

6. The capsaicin continuous multi-stage crystallization self-cleaning production device according to claim 1, characterized in that: The stirring rods (7) are arranged in multiple sets at equal intervals in the axial position of the transmission shaft (6), and each set of stirring rods (7) has two symmetrically arranged in the radial position of the transmission shaft (6).

7. The capsaicin continuous multi-stage crystallization self-cleaning production device according to claim 1, characterized in that: The connecting rods (8) are arranged in multiple sets at equal intervals in the axial position of the transmission shaft (6), and each set of the connecting rods (8) is arranged symmetrically in two places in the radial position of the transmission shaft (6).