Supercritical extraction device

Abstract

The utility model discloses a supercritical extraction device which comprises an extraction kettle and a fixing support, a liquid discharge hole is formed in the bottom wall of the extraction kettle, a liquid inlet hole is formed in the top wall of the extraction kettle, a bearing plate is fixed to the inner side wall of the extraction kettle, a material frame is placed on the bearing plate, and a stirring motor is installed on the outer top wall of the extraction kettle. A cavity is formed in the rotating column, the bottom end of the rotating shaft penetrates through the top wall of the cavity to enter the cavity, the bottom end of the rotating shaft is connected with a sliding block, the sliding block is arranged on the inner wall of the cavity in a sliding mode, the rotating column is rotationally sleeved with an annular plate, a lifting device is arranged on the inner top wall of the extraction kettle, and an output shaft of the lifting device is connected with the annular plate; a through hole is formed in the left wall of the extraction kettle, a plugging block is connected to the left wall of the material frame, a plugging plate is connected to the left wall of the plugging block, a cylinder is mounted on the fixed bracket, and an output shaft of the cylinder is connected with the plugging plate; the device can facilitate feeding and discharging of materials, and can improve the extraction efficiency; the device can facilitate feeding and discharging of materials, and can improve the extraction efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of extraction devices, in particular to a supercritical extraction device. Background Art

[0002] Supercritical fluid is a fluid above the critical temperature and critical pressure. It has no obvious gas-liquid boundary and is neither liquid nor gas. It is very sensitive to changes in temperature and pressure. Supercritical fluid has a density similar to that of liquid, and has a viscosity and high diffusion coefficient similar to that of gas. It has strong fluidity, solubility and transfer properties, and is an ideal extractant.

[0003] At present, supercritical extraction devices basically use material frames to hold materials. Before the supercritical extraction process, the materials are first loaded into the material frame, and the material frame with the materials is hoisted into the extraction kettle together, and then supercritical fluid is added to the extraction kettle. The supercritical fluid contacts the materials to extract the substances. In this way of extracting materials, loading and unloading are both loaded and unloaded from the top of the extraction kettle. The setting of the material frame cannot design a stirring device in the kettle, resulting in low extraction efficiency. Utility Model Content

[0004] In view of the defects in the prior art, the utility model provides a supercritical extraction device, which can facilitate the entry and exit of materials and improve the extraction efficiency.

[0005] A supercritical extraction device comprises an extraction kettle and a fixed bracket, wherein the inner bottom wall of the extraction kettle is a concave arc surface, a drainage hole is opened on the bottom wall of the extraction kettle, a drainage valve is arranged at the drainage hole, a liquid inlet hole is arranged on the top wall of the extraction kettle, a liquid inlet valve is arranged at the liquid inlet hole,

[0006] A carrying plate is fixed on the inner wall of the extraction kettle, and a plurality of through holes are opened on the carrying plate. A material frame is placed on the carrying plate, and the top of the material frame is open, and a plurality of filter holes are provided on the bottom wall of the material frame.

[0007] A stirring motor is installed on the outer top wall of the extraction kettle, and a rotating shaft is connected to the output shaft of the stirring motor. A rotating column is provided in the material frame, and a cavity is provided in the rotating column. The bottom end of the rotating shaft passes through the top wall of the cavity and enters the cavity. The bottom end of the rotating shaft is connected to a slider, and the slider is slidably arranged on the inner wall of the cavity. An annular plate is rotatably sleeved on the rotating column. A lifting device is provided on the inner top wall of the extraction kettle, and the output shaft of the lifting device is connected to the annular plate.

[0008] A through hole is opened on the left wall of the extraction kettle, and the left wall of the material frame is connected to a blocking block, which closes the through hole. The left wall of the blocking block is connected to a blocking plate, and a cylinder is installed on the fixed bracket. The output shaft of the cylinder is connected to the blocking plate. The cylinder can drive the blocking plate, the blocking block and the material frame to move to the left, and the material frame can move through the through hole to the outside of the extraction kettle.

[0009] Preferably, a fixing plate is provided on the fixing bracket, and the cylinder is mounted on the fixing plate.

[0010] Preferably, two cylinders are installed on the fixing plate.

[0011] Preferably, a side plate of the material frame is detachably connected to the material frame.

[0012] Preferably, an annular groove is formed on the inner circumferential wall of the annular plate, an annular slider is connected to the rotating column, and the annular slider is embedded in the annular groove.

[0013] Preferably, a plurality of stirring blades are arranged on the rotating column.

[0014] Preferably, a slide groove is provided on the inner wall of the cavity, and the sliding block is slidably connected to the slide groove.

[0015] Preferably, the extraction kettle is fixed by a plurality of supporting legs.

[0016] The beneficial effects of the utility model are embodied in the following: in the technical scheme, through the cooperation of various components, during extraction, the material frame is filled with material, the stirring motor is started, the output shaft of the stirring motor drives the rotating shaft to rotate, the rotation of the rotating shaft drives the rotating column to rotate, the rotating column rotates to stir the material, and at the same time, the supercritical fluid enters from the liquid inlet hole to extract the material, and the material is stirred by the rotating column, so that the supercritical fluid and the material can be fully contacted, thereby improving the extraction efficiency. After the extraction is completed, the drain valve is opened to discharge the supercritical fluid through the drain hole, the lifting device is started to drive the annular plate to move upward, the annular plate drives the rotating column to move upward, the rotating column moves to the top of the material frame, the cylinder is started, the cylinder drives the blocking plate, the blocking block and the material frame to move to the left, the material frame moves to the outside of the extraction kettle, and the waste after extraction is discharged. In this way, the device can facilitate the entry and exit of materials while improving the extraction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0018] Figure 1 It is a front cross-sectional view of the utility model.

[0019] In the accompanying drawings, 1-extraction kettle, 2-supporting legs, 3-drainage hole, 4-carrying plate, 5-material frame, 6-stirring motor, 7-rotating shaft, 8-rotating column, 9-cavity, 10-slider, 11-stirring blade, 12-annular plate, 13-lifting device, 14-sealing block, 15-sealing plate, 16-fixed bracket, 17-cylinder, 18-fixed plate. DETAILED DESCRIPTION

[0020] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0021] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0022] Example 1

[0023] like Figure 1 As shown, in this embodiment, a supercritical extraction device is provided, including an extraction kettle 1 and a fixed bracket 16, wherein the inner bottom wall of the extraction kettle 1 is a concave arc surface, a drainage hole 3 is opened on the bottom wall of the extraction kettle 1, a drainage valve is arranged at the drainage hole 3, a liquid inlet hole is arranged on the top wall of the extraction kettle 1, and a liquid inlet valve is arranged at the liquid inlet hole,

[0024] A carrying plate 4 is fixed to the inner wall of the extraction kettle 1. The carrying plate 4 has a plurality of through holes. A material frame 5 is placed on the carrying plate 4. The top of the material frame 5 is open, and the bottom wall of the material frame 5 has a plurality of filter holes.

[0025] A stirring motor 6 is installed on the outer top wall of the extraction kettle 1, and a rotating shaft 7 is connected to the output shaft of the stirring motor 6. A rotating column 8 is provided in the material frame 5, and a cavity 9 is provided in the rotating column 8. The bottom end of the rotating shaft 7 passes through the top wall of the cavity 9 and enters the cavity 9. The bottom end of the rotating shaft 7 is connected to a slider 10, and the slider 10 is slidably arranged on the inner wall of the cavity 9. An annular plate 12 is rotatably sleeved on the rotating column 8. A lifting device 13 is provided on the inner top wall of the extraction kettle 1, and the output shaft of the lifting device 13 is connected to the annular plate 12.

[0026] A through hole is opened on the left wall of the extraction kettle 1, and the left wall of the material frame 5 is connected to the blocking block 14, which closes the through hole. The left wall of the blocking block 14 is connected to the blocking plate 15, and a cylinder 17 is installed on the fixed bracket 16. The output shaft of the cylinder 17 is connected to the blocking plate 15. The cylinder 17 can drive the blocking plate 15, the blocking block 14 and the material frame 5 to move to the left, and the material frame 5 can move through the through hole to the outside of the extraction kettle 1.

[0027] In this embodiment, through the cooperation of various components, during extraction, the material frame 5 is filled with material, the stirring motor 6 is started, the output shaft of the stirring motor 6 drives the rotating shaft 7 to rotate, the rotating shaft 7 drives the rotating column 8 to rotate, the rotating column 8 rotates to stir the material, and at the same time, the supercritical fluid enters from the liquid inlet hole to extract the material, and the material is stirred by the rotating column 8, so that the supercritical fluid and the material can be fully contacted, thereby improving the extraction efficiency. After the extraction is completed, the drain valve is opened to discharge the supercritical fluid through the drain hole 3, the stirring motor 6 is stopped, the lifting device 13 is started to drive the annular plate 12 to move upward, the annular plate 12 drives the rotating column 8 to move upward, and the rotating column 8 moves to the top of the material frame 5, and then the cylinder 17 is started, the cylinder 17 drives the blocking plate 15, the blocking block 14 and the material frame 5 to move to the left, and the material frame 5 moves to the outside of the extraction kettle 1 to discharge the extracted waste. In this way, the device can facilitate the entry and exit of materials while improving the extraction efficiency.

[0028] In this embodiment, a fixing plate 18 is provided on the fixing bracket 16, and the cylinder 17 is installed on the fixing plate 18. In this embodiment, a fixing plate 18 is provided on the fixing bracket 16, and the cylinder 17 is installed on the fixing plate 18, so as to realize the installation of the cylinder 17.

[0029] In the present embodiment, two cylinders 17 are installed on the fixed plate 18. In the present embodiment, two cylinders 17 are installed, and the power to pull the material frame 5 to move is stronger.

[0030] In this embodiment, a side plate of the material frame 5 is detachably connected to the material frame 5. In this embodiment, a side plate of the material frame 5 is detachably connected. After the material extraction is completed, the side plate is removed to facilitate the discharge of waste from the material frame 5.

[0031] In this embodiment, the inner circumferential wall of the annular plate 12 is provided with an annular groove, and the rotating column 8 is connected with an annular slider, which is embedded in the annular groove. In this embodiment, the annular groove cooperates with the annular slider to realize the rotation setting of the annular plate 12.

[0032] In this embodiment, a plurality of stirring blades 11 are arranged on the rotating column 8. In this embodiment, the stirring blades 11 are arranged to stir the material and improve the extraction efficiency.

[0033] In this embodiment, the inner wall of the cavity 9 is provided with a slide groove, and the slider 10 is slidably connected to the slide groove. In this embodiment, the sliding arrangement of the slider 10 is achieved through the cooperation of the slide groove and the slider 10.

[0034] The extraction kettle 1 in this embodiment is fixed by a plurality of supporting legs 2. In this embodiment, a plurality of supporting legs 2 are provided to support the extraction kettle 1.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A supercritical extraction device, characterized in that: The invention comprises an extraction kettle (1) and a fixed bracket (16), wherein the inner bottom wall of the extraction kettle (1) is a concave arc surface, a drainage hole (3) is provided on the bottom wall of the extraction kettle (1), a drainage valve is provided at the drainage hole (3), a liquid inlet hole is provided on the top wall of the extraction kettle (1), and a liquid inlet valve is provided at the liquid inlet hole. A carrying plate (4) is fixed to the inner wall of the extraction kettle (1), the carrying plate (4) is provided with a plurality of through holes, a material frame (5) is placed on the carrying plate (4), the top of the material frame (5) is open, and the bottom wall of the material frame (5) has a plurality of filter holes. A stirring motor (6) is installed on the outer top wall of the extraction kettle (1), and a rotating shaft (7) is connected to the output shaft of the stirring motor (6). A rotating column (8) is provided in the material frame (5), and a cavity (9) is provided in the rotating column (8). The bottom end of the rotating shaft (7) passes through the top wall of the cavity (9) and enters the cavity (9). The bottom end of the rotating shaft (7) is connected to a slider (10), and the slider (10) is slidably arranged on the inner wall of the cavity (9). An annular plate (12) is rotatably sleeved on the rotating column (8). A lifting device (13) is provided on the inner top wall of the extraction kettle (1), and the output shaft of the lifting device (13) is connected to the annular plate (12). The left wall of the extraction kettle (1) is provided with a through hole, the left wall of the material frame (5) is connected to a blocking block (14), the blocking block (14) blocks the through hole, the left wall of the blocking block (14) is connected to a blocking plate (15), a cylinder (17) is installed on a fixed bracket (16), the output shaft of the cylinder (17) is connected to the blocking plate (15), the cylinder (17) can drive the blocking plate (15), the blocking block (14) and the material frame (5) to move to the left, and the material frame (5) can pass through the through hole and move to the outside of the extraction kettle (1).

2. A supercritical extraction device according to claim 1, characterized in that: The fixing bracket (16) is provided with a fixing plate (18), and the cylinder (17) is mounted on the fixing plate (18).

3. A supercritical extraction device according to claim 2, characterized in that: Two cylinders (17) are mounted on the fixing plate (18).

4. A supercritical extraction device according to claim 1, characterized in that: A side plate of the material frame (5) is detachably connected to the material frame (5).

5. A supercritical extraction device according to claim 1, characterized in that: An annular sliding groove is formed on the inner circumferential wall of the annular plate (12), and an annular sliding block is connected to the rotating column (8), and the annular sliding block is embedded in the annular sliding groove.

6. A supercritical extraction device according to claim 1, characterized in that: A plurality of stirring blades (11) are arranged on the rotating column (8).

7. A supercritical extraction device according to claim 1, characterized in that: The inner wall of the cavity (9) is provided with a sliding groove, and the sliding block (10) is slidably connected to the sliding groove.

8. A supercritical extraction device according to claim 1, characterized in that: The extraction kettle (1) is fixed by a plurality of supporting legs (2).

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