Supercritical extraction apparatus

Abstract

The utility model relates to extraction pharmaceutical technical field discloses a kind of supercritical extraction devices, including extraction component, extraction component is used to extract material, extraction component includes jar body, filter cartridge, mounting ring and rotating ring, mounting ring is fixedly connected with the top of jar body, transmission connection is between rotating ring and mounting ring, and rotating ring is connected with the inner wall of jar body, filter cartridge is clamped between rotating ring, the top of jar body is connected with cover plate by fastener, the bottom of jar body is fixedly connected with valve, lamella drives rotating ring to rotate, by the insertion between connecting plate and mounting block and mounting column, filter cartridge is loaded in jar body at the same time, filter cartridge is connected between rotating ring, and high-pressure supercritical fluid enters jar body by the flow pipe of rotating ring bottom, in the delivery of high-pressure supercritical fluid, the synchronous drive of rotating ring and filter cartridge and other components is realized, without the aid of motor driving, reduce kinetic energy cost in extraction.

Description

Technical Field

[0001] This utility model belongs to the field of extraction pharmaceutical technology, specifically, it relates to a supercritical extraction device. Background Technology

[0002] Supercritical fluids are a state of matter that is neither gaseous nor liquid, existing only when their temperature and pressure exceed a critical point. Supercritical fluids have a high density, similar to liquids, while their viscosity is closer to that of gases. Therefore, supercritical fluids are an ideal extractant and are widely used in the field of pharmaceutical technology.

[0003] The principle of supercritical carbon dioxide extraction and separation process is to utilize the special solubility of supercritical carbon dioxide for certain special natural products. In the supercritical state, supercritical carbon dioxide is brought into contact with the substance to be separated, so that it selectively extracts components with different polarities, boiling points and molecular weights in sequence. Then, by means of depressurization and heating, the supercritical fluid is turned into ordinary gas, and the extracted substances are completely or basically precipitated, thereby achieving the purpose of separation and purification.

[0004] A document with publication number CN222092566U discloses a supercritical extraction device for pharmaceuticals, including a mounting frame. A drive motor is mounted on the surface of the mounting frame. An upper material tank is mounted at the bottom of the mounting frame, an extraction tank is mounted at the bottom of the upper material tank, and a lower material tank is mounted at the bottom of the extraction tank. A first arc-shaped cover is mounted on one side of the upper material tank, and a second arc-shaped cover is mounted on the other side of the upper material tank. Bottom slide rails are mounted at the bottom ends of the first and second arc-shaped covers. The above device, through the mounting frame, drive motor, upper material tank, extraction tank, lower material tank, first arc-shaped cover, second arc-shaped cover, bottom slide rail, limiting groove, sliding block, electric push rod, and adjusting seat, enables the equipment to perform more efficient supercritical extraction operations. In actual use, the operator can put the pharmaceutical raw materials to be supercritically extracted into the upper and lower material tanks respectively.

[0005] The aforementioned device uses a single screw to stir the internal materials, improving mixing efficiency. However, the device relies on a single stirring device and motor drive, which requires additional power to drive the stirring device, thus increasing energy costs during extraction.

[0006] In view of this, this utility model is hereby proposed. Utility Model Content

[0007] To solve the technical problem of material mixing, the basic concept of the technical solution adopted by this utility model is as follows:

[0008] A supercritical extraction device includes an extraction assembly for extracting materials. The extraction assembly includes a tank, a filter cartridge, a mounting ring, and a rotating ring. The mounting ring is fixedly connected to the top of the tank, the rotating ring is drivenly connected to the mounting ring, and the rotating ring is connected to the inner wall of the tank. The filter cartridge is snapped into the rotating ring. A cover plate is connected to the top of the tank by fasteners, and a valve is fixedly connected to the bottom of the tank.

[0009] In a preferred embodiment of this utility model, the mounting ring is symmetrically provided with connecting rings, each connecting ring is fixedly connected to the mounting ring, and the rotating ring is slidably connected to the corresponding connecting ring.

[0010] In a preferred embodiment of this utility model, an air jet is arranged around the mounting ring, each air jet is fixedly connected to the mounting ring, and each air jet is connected to a supercritical fluid delivery pipeline.

[0011] In a preferred embodiment of the present invention, a blade is arranged around the rotating ring, each blade is inclined and each blade is fixedly connected to the rotating ring.

[0012] In a preferred embodiment of the present invention, each of the jet nozzles is opposite to the space between the blades, and a fluid delivery pipe is arranged around the rotating ring, with each fluid delivery pipe fixedly connected to the rotating ring.

[0013] In a preferred embodiment of this utility model, a mounting block is fixedly connected inside the rotating ring, and multiple mounting columns are fixedly connected to the mounting block. A connecting plate is inserted into the mounting column, and the connecting plate is fixedly connected to the filter cartridge.

[0014] In a preferred embodiment of the present invention, a connecting plate is rotatably connected to the bottom of the tank, and the connecting plate and the filter cylinder are connected by a snap-fit ​​between a protrusion and a groove.

[0015] In a preferred embodiment of the present invention, a plurality of stirring columns are fixedly connected inside the filter cylinder, and each stirring column is symmetrically and fixedly connected with a stirring block, and a plurality of stirring rods are fixedly connected to each stirring column.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] 1. This supercritical extraction device uses a blade plate to drive a rotating ring. By connecting the filter cartridge to the tank through the insertion of the connecting plate, mounting block, and mounting column, the filter cartridge is loaded into the tank and connected to the rotating ring. High-pressure supercritical fluid enters the tank through the fluid delivery pipe at the bottom of the rotating ring. In the delivery of high-pressure supercritical fluid, the rotating ring and filter cartridge are driven synchronously, eliminating the need for a motor and reducing the kinetic energy cost in the extraction process.

[0018] 2. In this supercritical extraction device, the filter cartridge is supported at the bottom of the tank, bearing the weight of the filter cartridge itself and the material inside; ensuring that the filter cartridge rotates around the central axis of the tank; and the locking structure can transmit the torque required for the rotation of the filter cartridge.

[0019] 3. In this supercritical extraction device, stirring blocks are symmetrically fixedly connected to each stirring column to apply a large impact force to the fluid or material during rotation, promoting macroscopic mixing or breaking up agglomerates; multiple stirring rods are fixedly connected to each stirring column; the stirring blocks and stirring rods are slender rods distributed at different heights and angles of the stirring columns; the stirring rods are used to generate shear force to promote microscopic mixing and dispersion, or to prevent material from depositing on the inner wall of the filter cartridge.

[0020] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0021] In the attached diagram:

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

[0023] Figure 2 This is a schematic diagram of the structure on the mounting ring of this utility model;

[0024] Figure 3 This is a schematic diagram showing the structural breakdown between the mounting ring and the rotating ring of this utility model;

[0025] Figure 4 This is a schematic diagram of the filter cartridge structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the structure on the stirring column of this utility model.

[0027] In the diagram: 1. Tank body; 11. Cover plate; 12. Valve; 2. Filter cartridge; 21. Connecting plate; 3. Mounting ring; 31. Connecting ring; 32. Jet nozzle; 4. Rotating ring; 41. Fluid delivery pipe; 42. Blade; 5. Mounting block; 51. Mounting column; 52. Connecting plate; 6. Stirring column; 61. Stirring block; 62. Stirring rod. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0029] Please see Figure 1-5A supercritical fluid extraction device includes an extraction assembly for extracting materials. The extraction assembly includes a tank 1, a filter cartridge 2, a mounting ring 3, and a rotating ring 4. The mounting ring 3 is fixedly connected to the top of the tank 1, and the rotating ring 4 is drivenly connected to the mounting ring 3 and connected to the inner wall of the tank 1. The filter cartridge 2 is snapped into the rotating ring 4. A cover plate 11 is fastened to the top of the tank 1, and a valve 12 is fixedly connected to the bottom of the tank 1. Materials are manually placed into the filter cartridge 2, and the cover plate 11 is fastened to the tank 1 using fasteners. The space between the tank body 1 and the cover plate 11 is sealed. The blade 42 drives the rotating ring 4 to rotate. Through the insertion between the connecting plate 52 and the mounting block 5 and the mounting column 51, the filter cartridge 2 is loaded into the tank body 1, and the filter cartridge 2 is connected to the rotating ring 4. The high-pressure supercritical fluid enters the tank body 1 through the fluid delivery pipe 41 at the bottom of the rotating ring 4. In the transportation of high-pressure supercritical fluid, the rotating ring 4 and the filter cartridge 2 are driven synchronously without the need for a motor, which reduces the kinetic energy cost in the extraction process. Fasteners include, but are not limited to, bolts.

[0030] The mounting ring 3 is symmetrically equipped with connecting rings 31, each of which is fixedly connected to the mounting ring 3. The rotating ring 4 is slidably connected to the corresponding connecting ring 31. Air jets 32 are arranged around the mounting ring 3, each of which is fixedly connected to the mounting ring 3 and connected to a supercritical fluid delivery pipe. Blades 42 are arranged around the rotating ring 4, each of which is inclined and fixedly connected to the rotating ring 4. The space between each air jet 32 ​​and the blade 42 is... The rotating ring 4 is surrounded by fluid delivery pipes 41, each of which is fixedly connected to the rotating ring 4. A mounting block 5 is fixedly connected inside the rotating ring 4, and multiple mounting posts 51 are fixedly connected to the mounting block 5. Connecting plates 52 are inserted into the mounting posts 51 and fixedly connected to the filter cartridge 2. Air nozzles 32 are fixedly arranged around the inner ring of the mounting ring 3, facing the center. Each air nozzle 32 is independently connected to one or more supercritical fluid delivery pipes; these pipes are responsible for delivering externally supplied high-pressure supercritical fluid. The fluid is delivered to nozzle 32; the supercritical fluid is ejected at high speed from nozzle 32; the outlet position of nozzle 32 is designed to face the space between blades 42 on the inner wall of the rotating ring 4; that is, the ejected fluid jet will directly impact a specific side of the inclined blades 42; the high-speed fluid impacts the inclined blades 42, generating a force on the blade surface; since the blades are inclined, the force of the fluid acting on the blade surface can be decomposed into two components: one component causes radial force on the blade, and the other component generates a force driving the rotating ring 4. The torque of rotation around the central axis, the simultaneous fluid impact on multiple blades 42, and the resulting resultant torque continuously drive the entire rotating ring 4 to rotate. The blades 42 drive the rotating ring 4 to rotate. Through the insertion between the connecting plate 52 and the mounting block 5 and the mounting column 51, the filter cartridge 2 is loaded into the tank 1, and the filter cartridge 2 is connected to the rotating ring 4. The high-pressure supercritical fluid enters the tank 1 through the fluid delivery pipe 41 at the bottom of the rotating ring 4. In the transportation of high-pressure supercritical fluid, the synchronous drive of the rotating ring 4 and the filter cartridge 2 and other components is realized.

[0031] The tank body 1 is rotatably connected to a connecting plate 21 at its bottom. The connecting plate 21 is connected to the filter cylinder 2 by a snap-fit ​​connection between a protrusion and a groove. Multiple stirring columns 6 are fixedly connected inside the filter cylinder 2. Each stirring column 6 is symmetrically and fixedly connected to a stirring block 61, and each stirring column 6 is fixedly connected to multiple stirring rods 62. When the top of the filter cylinder 2 is driven to rotate, its bottom transmits the rotational motion to the connecting plate 21 through the snap-fit ​​connection, causing the connecting plate 21 to rotate synchronously. The support point of the filter cylinder 2 at the bottom of the tank body 1 is the main load-bearing point, supporting the weight of the filter cylinder itself and the material inside. This ensures that the filter cylinder 2 rotates around the central axis of the tank body 1. The snap-fit ​​structure can transmit the rotational force required for the filter cylinder. The torque; compared with the top plug-in connection mounting column 51 and connecting plate 52, this connection design mainly bears a larger vertical load, while the top connection mainly provides positioning and torque transmission, and sometimes also bears part of the load. The stirring block 61 is symmetrically fixedly connected to each stirring column 6 to apply a large impact force to the fluid or material during rotation, promoting macro-mixing or breaking up agglomerates; multiple stirring rods 62 are fixedly connected to each stirring column 6; the stirring block 61 and stirring rod 62 are slender rods, distributed at different heights and angles of the stirring column 6; the stirring rod 62 is used to generate shear force to promote micro-mixing, dispersion, or prevent material from depositing on the inner wall of the filter cartridge.

[0032] It is worth noting that valve 12 is connected to a separation device, which is a well-known technology in the field and therefore is not disclosed in detail in this article. Furthermore, this optimization scheme is aimed at eliminating the need for additional power to drive the internal components to rotate during extraction, and will not be elaborated here.

[0033] Working principle: Material is placed manually into the filter cartridge 2, and the cover plate 11 is installed between the cartridge and the tank body 1 using fasteners, maintaining a seal between the tank body 1 and the cover plate 11. The jet nozzles 32 are fixedly arranged around the inner ring of the mounting ring 3, facing the center. Each jet nozzle 32 is independently connected to one or more supercritical fluid delivery pipes; these pipes are responsible for delivering high-pressure supercritical fluid supplied externally to the jet nozzle 32. The supercritical fluid is ejected at high speed from the jet nozzle 32. The outlet position of the jet nozzle 32 is designed to face the space between the blades 42 on the inner wall of the rotating ring 4; that is, the ejected fluid stream will... The fluid directly impacts a specific side of the inclined blade 42; the high-speed fluid strikes the inclined blade 42, generating a force on the blade surface; since the blade is inclined, the force of the fluid acting on the blade surface can be decomposed into two components: one component causes radial force on the blade, and the other component generates a torque that drives the rotating ring 4 to rotate around the central axis. Multiple blades 42 are simultaneously subjected to this fluid impact, and the resulting torque continuously drives the entire rotating ring 4 to rotate. The blades 42 drive the rotating ring 4 to rotate, and through the insertion between the connecting plate 52 and the mounting block 5 and mounting column 51, the filter cartridge 2 is loaded into the tank 1. Simultaneously, the filter cartridge 2 is connected to the rotating ring 4, and the high-pressure supercritical fluid enters the tank 1 through the fluid delivery pipe 41 at the bottom of the rotating ring 4. During the delivery of the high-pressure supercritical fluid, the rotating ring 4 and filter cartridge 2 are driven synchronously. When the top of the filter cartridge 2 is driven to rotate, its bottom transmits the rotational motion to the connecting plate 21 through a locking mechanism, causing the connecting plate 21 to rotate synchronously. This is the main support point of the filter cartridge 2 at the bottom of the tank 1, bearing the weight of the filter cartridge itself and the material inside. This ensures that the filter cartridge 2 rotates around the central axis of the tank 1. The locking structure can transmit the torque required for the rotation of the filter cartridge. Compared to the top plug-in connection... The connecting column 51 and connecting plate 52 are designed to withstand large vertical loads. The top connection mainly provides positioning and torque transmission, and sometimes also bears part of the load. The stirring blocks 61 are symmetrically fixed to each stirring column 6 to apply a large impact force to the fluid or material during rotation, promoting macro-mixing or breaking up agglomerates. Multiple stirring rods 62 are fixedly connected to each stirring column 6. The stirring blocks 61 and stirring rods 62 are slender rods distributed at different heights and angles of the stirring columns 6. The stirring rods 62 generate shear force to promote micro-mixing and dispersion, or to prevent material from depositing on the inner wall of the filter cartridge.

[0034] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A supercritical extraction apparatus, characterized in that, include: The extraction assembly is used to extract materials. The extraction assembly includes a tank (1), a filter cartridge (2), a mounting ring (3) and a rotating ring (4). The mounting ring (3) is fixedly connected to the top of the tank (1). The rotating ring (4) is connected to the mounting ring (3) by transmission. The rotating ring (4) is connected to the inner wall of the tank (1). The filter cartridge (2) is snapped to the rotating ring (4). The top of the tank (1) is connected to a cover plate (11) by fasteners. The bottom of the tank (1) is fixedly connected to a valve (12).

2. The supercritical extraction apparatus according to claim 1, characterized in that, The mounting ring (3) is symmetrically provided with connecting rings (31), each connecting ring (31) is fixedly connected to the mounting ring (3), and the rotating ring (4) is slidably connected to the corresponding connecting ring (31).

3. The supercritical extraction apparatus according to claim 1, characterized in that, The mounting ring (3) is surrounded by air jets (32), each air jet (32) is fixedly connected to the mounting ring (3), and each air jet (32) is connected to a supercritical fluid transport pipeline.

4. The supercritical extraction apparatus according to claim 1, characterized in that, The rotating ring (4) is surrounded by blades (42), each blade (42) is inclined, and each blade (42) is fixedly connected to the rotating ring (4).

5. The supercritical extraction apparatus according to claim 3, characterized in that, Each of the jet nozzles (32) is opposite to the space between the blades (42), and a fluid delivery pipe (41) is arranged around the rotating ring (4), with each fluid delivery pipe (41) fixedly connected to the rotating ring (4).

6. The supercritical extraction apparatus according to claim 1, characterized in that, An installation block (5) is fixedly connected inside the rotating ring (4). Multiple installation columns (51) are fixedly connected on the installation block (5). A connecting plate (52) is inserted into the installation column (51). The connecting plate (52) is fixedly connected to the filter cartridge (2).

7. The supercritical extraction apparatus according to claim 1, characterized in that, The bottom of the tank (1) is rotatably connected to a connecting plate (21), and the connecting plate (21) and the filter cylinder (2) are connected by a snap-fit ​​between a protrusion and a groove.

8. The supercritical extraction apparatus according to claim 1, characterized in that, The filter cylinder (2) is fixedly connected with multiple stirring columns (6), each stirring column (6) is symmetrically and fixedly connected with stirring blocks (61), and each stirring column (6) is fixedly connected with multiple stirring rods (62).

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