Supercritical extraction equipment for plant active ingredients

Abstract

The invention relates to plant active ingredient supercritical extraction equipment applied to the technical field of supercritical extraction, and the plant active ingredient supercritical extraction equipment comprises an extraction tank body, a sealing gland, a material storage pipe, an end plug and a plug flow sinking plug. The retaining effect of plant active ingredients is effectively improved, the plug-flow sinking plug is transferred to the position above the extraction tank body by turning the extraction tank body up and down, the plug-flow sinking plug sinks to push an extraction medium to enter the material retaining pipe and penetrate through the extraction material, the extraction tank body is repeatedly turned up and down, and the extraction efficiency is improved. By improving the repeated flowing effect of the extraction medium, violent disturbance to the extraction material is effectively reduced, interference to the extraction environment in the material storage pipe is effectively reduced, the extraction efficiency of plant components is effectively improved, and the activity effect of the extraction components is effectively improved.

Description

Technical Field

[0001] The invention relates to a supercritical extraction device, in particular to a supercritical extraction device for plant active ingredients applied in the technical field of supercritical extraction. Background Art

[0002] Supercritical extraction is a technique that uses supercritical fluid as an extraction medium to separate different components in a mixture. Supercritical fluid refers to a fluid state above its critical temperature and critical pressure. In this state, the fluid has unique solubility and diffusion properties, making it an effective medium in the extraction process. Supercritical extraction is the best way to extract plant active ingredients.

[0003] The specification of Chinese invention patent CN202111035440.7 discloses "A supercritical extraction method for active substances in fruits and vegetables". The deformation airbag is deformed by pressure, causing the magnetically-insulated powders that were originally in contact with each other in its inner cavity to gradually separate due to the influence of the deformation, so that the magnet block emits magnetism to the outside world, causing multiple separation beads between the inner walls of the groove to rotate in a circular motion under the influence of the annular magnetic field, thereby decomposing the fruits and vegetables placed therein, and gradually decomposing and reducing the larger particles of fruit and vegetable raw materials due to rotational friction, so that the decomposed fruit and vegetable raw materials fall into the screening holes for preliminary screening, thereby improving the extraction recovery rate. At the same time, the extraction speed is increased due to the reduction in the particle size of the raw materials.

[0004] Since some plant active ingredients are highly sensitive, even a slight external interference can inactivate the plant ingredients. Therefore, a relatively stable and closed environment is required for the extraction of this type of plant active ingredients. However, existing extraction equipment lacks a relatively stable extraction structure. In order to improve the extraction efficiency, existing extraction equipment will stir and grind the extraction materials. However, for highly sensitive plant active ingredients, although the severe extraction interference of the extraction materials can improve the extraction efficiency, it also causes relatively higher damage to the activity of the plant ingredients, resulting in relatively low activity of the extracted ingredients. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the extraction of plant active ingredients requires a relatively stable and closed environment. For highly sensitive plant active ingredients, although the severe extraction interference of the extraction materials can improve the extraction efficiency, the activity destruction of the plant ingredients is also relatively higher, resulting in relatively low activity of the extracted ingredients.

[0006] In order to solve the above problems, the present invention provides a supercritical extraction device for plant active ingredients, comprising a tank support and an extraction tank body rotatably connected in the middle of the tank support, a closed gland is inserted on the top of the extraction tank body, a material retention tube is fixedly connected in the middle of the closed gland, an end plug is fixedly connected at the bottom of the material retention tube, an upper flow opening and a lower flow opening are respectively provided at the connection between the closed gland and the end plug and the material retention tube, a plug flow sinking plug is sleeved on the outside of the material retention tube, and the top and bottom ends of the plug flow sinking plug correspond to the closed gland and the end plug respectively;

[0007] The left and right ends of the extraction tank body are fixedly connected with a flip shaft, and the flip shaft is rotatably connected to the tank body bracket. The top and bottom ends of the extraction tank body are respectively provided with an input port and an output port, which respectively correspond to the top and bottom of the plug-flow sinking plug, and a delivery pipeline is fixedly connected between the input port and the output port and the middle part of the flip shaft.

[0008] In the above-mentioned supercritical extraction equipment for active ingredients in plants, the extraction material is concentrated in the material retention tube to provide a stable extraction environment for the extraction material, and then the extraction tank is turned upside down and the plug-flow sinking plug is used to sink the extraction medium into the material retention tube and through the extraction material, so that the extraction medium repeatedly passes through the extraction material, thereby effectively improving the extraction effect of the plant ingredients.

[0009] As a further improvement of the present application, the interior of the plug-flow sinking plug is hollow and filled with water. A water injection and pumping port is provided at one end of the top of the plug-flow sinking plug. By adjusting the total amount of water injected into the plug-flow sinking plug, the total mass of the plug-flow sinking plug can be adjusted to adjust the sinking effect of the plug-flow sinking plug. The water injection and pumping port facilitates the water injection and pumping operations of the plug-flow sinking plug.

[0010] As a further improvement of the present application, the top end of the material retention tube passes through the closed pressure cover, and a tube plug is inserted into the top end of the material retention tube, and the tube plug is fixedly connected to the closed pressure cover with bolts. By opening the tube plug and turning the extraction tank body to an inverted state, the extracted material in the material retention tube is easily dumped and discharged.

[0011] As a further improvement of the present application, the inner end of the tube plug is fixedly connected with an upper blocking net, which is sleeved with the material retention tube and is lower than the upper flow port. The upper blocking net is used to block the top of the material retention tube, thereby effectively preventing the extraction material from leaking from the upper flow port.

[0012] As another improvement of the present application, a lower blocking net is fixedly connected to the bottom of the material retention tube, and the lower blocking net is higher than the lower flow port. The lower blocking net is used to block the bottom end of the material retention tube, thereby effectively preventing the extracted material from leaking from the lower flow port.

[0013] As another improvement supplement of the present application, an anchor line is fixedly connected to the middle part of the lower blocking net, and a swing rod is fixedly connected to the top of the anchor line. The swing rod is sleeved inside the material retention tube. When the extraction tank body is flipped up and down, the extraction material inside the material retention tube also sinks. The swing of the swing rod is utilized to prevent the extraction material from sinking in a concentrated manner, thereby achieving scattered sinking of the extraction material, facilitating full contact with the rising extraction medium, and effectively improving the extraction effect of the plant active ingredients.

[0014] As another improved supplement of the present application, the top and bottom ends of the swing rod are fixedly connected with floating balls, and the outer surface of the swing rod is fixedly connected with a bumper ring, which contacts the inner wall of the material retention tube. The floating balls are used to increase the buoyancy effect of the swing rod, thereby effectively improving the floating and swinging ability of the swing rod, and the bumper ring is used to effectively improve the shaking effect of the extracted material.

[0015] As another improvement of the present application, the collision ring is fixed tangent to the rocking rod, and the diameter of the collision ring is smaller than the inner diameter of the material retention tube. The collision ring is made of spring steel wire. The small diameter collision ring reduces the occupation of the internal space of the material retention tube, thereby effectively increasing the rocking amplitude of the rocking rod.

[0016] As another improvement supplement of the present application, the contact end of the collision ring and the inner wall of the material retention tube is fixedly connected with a magnetic ball, and the inner ring of the plug-flow sinking plug is fixedly inlaid with a magnetic ring. The magnetic ring corresponds to the magnetic ball, and the collision ring is arranged in a spiral shape with respect to the rocking rod. When the plug-flow sinking plug sinks, the induction of the magnetic ring and the magnetic ball is utilized to guide the swing of the rocking rod, thereby further improving the shaking effect of the rocking rod on the sinking extraction material.

[0017] In summary, the present invention provides a stable extraction environment for the extraction material by concentrating the extraction material in the material retention tube, effectively improving the retention effect of plant active ingredients, and effectively avoiding the destruction of sensitive plant components in the extraction material. Then, by turning the extraction tank body upside down, the plug flow sinking plug is transferred to the top of the extraction tank body, and the plug flow sinking plug is used to sink and push the extraction medium into the material retention tube and pass through the extraction material. Subsequently, the extraction medium overflows the material retention tube and fills the top of the plug flow sinking plug. The extraction tank body is repeatedly turned upside down, thereby achieving the extraction medium repeatedly passing through the extraction material. By improving the repeated flow effect of the extraction medium, the violent disturbance of the extraction material is effectively reduced, the interference with the extraction environment inside the material retention tube is effectively reduced, the extraction efficiency of the plant components is effectively improved, and the activity effect of the extraction components is effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional structural diagram of the first embodiment of the present application;

[0019] Figure 2This is a cross-sectional three-dimensional structural diagram of the extraction tank body according to the first embodiment of the present application;

[0020] Figure 3 This is a demonstration diagram of the sinking movement of the push-flow sinking plug in the first embodiment of the present application;

[0021] Figure 4 This is a three-dimensional structural diagram of the material retention tube and the plug-flow sinking plug in the first embodiment of the present application;

[0022] Figure 5 This is a demonstration diagram of water injection into the push-flow sinking plug according to the first embodiment of the present application;

[0023] Figure 6 This is a sectional three-dimensional structural diagram of a material retention tube according to the first embodiment of the present application;

[0024] Figure 7 This is a cross-sectional view of a material retention tube according to a second embodiment of the present application;

[0025] Figure 8 This is a demonstration diagram of the swing change of the swing rod in the second embodiment of the present application;

[0026] Fig. 9 This is a three-dimensional structural diagram of a rocking rod according to a second embodiment of the present application;

[0027] Fig.10 This is a three-dimensional structural diagram of the magnetic coil according to the second embodiment of the present application.

[0028] Description of the numbers in the figure:

[0029] 1. Extraction tank; 101. Tank support; 102. Closing gland; 103. Flip shaft; 104. Input port; 105. Output port; 106. Conveying pipeline; 2. Material retention pipe; 201. End plug; 202. Upflow port; 203. Downflow port; 204. Plug flow sinking plug; 205. Water injection and pumping port; 206. Pipe plug; 207. Upper plugging net; 208. Lower plugging net; 3. Swinging rod; 301. Anchor line; 302. Floating ball; 303. Bumping circle; 304. Magnetic ball; 305. Magnetic circle. DETAILED DESCRIPTION

[0030] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0031] The first implementation method:

[0032] Figures 1 to 5The invention shows a supercritical extraction device for plant active ingredients, comprising a tank support 101 and an extraction tank body 1 rotatably connected to the middle of the tank support 101, a sealing gland 102 is inserted on the top of the extraction tank body 1, a material storage tube 2 is fixedly connected to the middle of the sealing gland 102, an end plug 201 is fixedly connected to the bottom of the material storage tube 2, an upper flow port 202 and a lower flow port 203 are respectively provided at the connection between the sealing gland 102 and the end plug 201 and the material storage tube 2, and a plug flow sinking plug 201 is sleeved on the outside of the material storage tube 2. 4. The top and bottom ends of the plug-flow sinking plug 204 correspond to the closed gland 102 and the end plug 201 respectively. The interior of the plug-flow sinking plug 204 is hollow and filled with water. A water injection and pumping port 205 is provided at one end of the top of the plug-flow sinking plug 204. By adjusting the total amount of water injected into the plug-flow sinking plug 204, the total mass of the plug-flow sinking plug 204 is adjusted to adjust the sinking effect of the plug-flow sinking plug 204. The water injection and pumping port 205 facilitates the water injection and pumping operations of the plug-flow sinking plug 204.

[0033] When extracting plant active ingredients, the extraction materials are placed in the material storage tube 2 for centralized storage. The storage environment of the extraction materials is relatively stable, thereby effectively improving the retention effect of plant active ingredients. The extraction tank body 1 is turned upside down, and the plug-flow sinking plug 204 originally located at the bottom of the extraction tank body 1 is transferred to the top of the extraction tank body 1, and then the plug-flow sinking plug 204 sinks. The plug-flow sinking plug 204 is used to push the extraction medium into the material storage tube 2 and pass through the extraction material. The subsequent extraction medium overflows the material storage tube 2 and fills the top of the plug-flow sinking plug 204. When the plug-flow sinking plug 204 sinks to the bottom of the extraction tank body 1, the extraction medium flows from the bottom The extraction medium flows into the material storage tube 2 through the upper flow port 203, and the extraction medium overflows from the upper flow port 202. On the contrary, when the push flow sinking plug 204 sinks toward the closed pressure cover 102, the extraction medium enters the material storage tube 2 from the upper flow port 202, and the extraction medium overflows from the lower flow port 203. The extraction tank body 1 is repeatedly turned upside down, so that the extraction medium repeatedly passes through the extraction material. By improving the repeated flow effect of the extraction medium, the extraction medium repeatedly flows through the extraction material, and the disturbance to the extraction material is relatively small compared with the traditional rotary stirring method, which effectively reduces the damage to the plant active ingredients in the extraction material, and effectively improves the extraction efficiency of the plant ingredients and the activity effect of the extraction ingredients.

[0034] Figures 2 to 3As shown, both left and right ends of the extraction tank body 1 are fixedly connected with a flip shaft 103, and the flip shaft 103 is rotatably connected to the tank body bracket 101. The flip shaft 103 is used to effectively improve the flipping effect of the extraction tank body 1. The top and bottom ends of the extraction tank body 1 are respectively provided with an input port 104 and an output port 105, which correspond to the top and bottom of the plug flow sinking plug 204, respectively, and a delivery pipeline 106 is fixedly connected between the input port 104 and the output port 105 and the middle part of the flip shaft 103, and the delivery pipeline 106 passes through the flip shaft 103, so that the delivery pipeline 106 can be connected to the input port 104 and the output port 105;

[0035] When the extraction tank body 1 is used to extract plant active ingredients, the extraction medium is fed into the extraction tank body 1 from the input port 104, and the extraction medium is discharged from the extraction tank body 1 from the output port 105. When the extraction tank body 1 is repeatedly turned over and the plug-flow sinking plug 204 sinks to the bottom of the extraction tank body 1, the extraction medium in the extraction tank body 1 enters the material retention tube 2 from the lower flow port 203, and part of the extraction medium is discharged from the output port 105, and part of the extraction medium is replenished into the extraction tank body 1 from the input port 104. The plug-flow sinking plug 204 is used to separate the input port 104 and the output port 105, thereby effectively preventing the extraction medium from circulating between the input port 104 and the output port 105, thereby effectively increasing the extraction medium time between the extraction medium and the extraction material, and effectively improving the extraction effect of the plant ingredients.

[0036] Figures 1 to 3 As shown, the top of the material retention tube 2 passes through the closed gland 102, and a pipe plug 206 is inserted into the top of the material retention tube 2, and the pipe plug 206 is fixedly connected to the closed gland 102 with bolts. By opening the pipe plug 206 and turning the extraction tank body 1 to an inverted state, it is convenient to pour out the extracted material in the material retention tube 2. The inner end of the pipe plug 206 is fixedly connected with an upper blocking net 207, and the upper blocking net 207 is sleeved with the material retention tube 2, and the upper blocking net 207 is lower than the upper flow port 202. The upper blocking net 207 is used to block the top of the material retention tube 2, so as to effectively prevent the extracted material from leaking from the upper flow port 202. The bottom of the material retention tube 2 is fixedly connected with a lower blocking net 208, and the lower blocking net 208 is higher than the lower flow port 203. The lower blocking net 208 is used to block the bottom end of the material retention tube 2, so as to effectively prevent the extracted material from leaking from the lower flow port 203.

[0037] By opening the tube plug 206, the extraction material can be directly placed into the material retention tube 2 through the closed pressure cover 102, and when the extraction material needs to be taken out, the extraction tank body 1 is directly inverted to dump the extraction material in the material retention tube 2, thereby effectively improving the efficiency of taking and placing the extraction material. After the extraction material is placed in the material retention tube 2, the tube plug 206 is used again to seal the material retention tube 2, and the upper blocking net 207 is used to block the top of the material retention tube 2, thereby effectively preventing the extraction material from leaking from the upper flow port 202, and the lower blocking net 208 is used to block the bottom end of the material retention tube 2, thereby effectively preventing the extraction material from leaking from the lower flow port 203, thereby effectively improving the effect of the extraction medium entering and exiting the material retention tube 2.

[0038] The second implementation method:

[0039] Compared with the first embodiment, this embodiment mainly adds a rocking rod 3, and the specific newly added structure is as follows. The remaining structures are consistent with the first embodiment.

[0040] Figures 6 to 9 As shown, the middle of the lower blocking net 208 is fixedly connected with an anchor line 301, and the top of the anchor line 301 is fixedly connected with a swing rod 3, and the swing rod 3 is sleeved with the inside of the material retention tube 2. When the extraction tank body 1 is turned upside down, the extraction material inside the material retention tube 2 also sinks. The swing of the swing rod 3 is used to prevent the extraction material from sinking in a concentrated manner, so that the extraction material can be scattered and sunk, which is convenient for full contact with the rising extraction medium, and effectively improves the extraction effect of the plant active ingredients. The top and bottom ends of the swing rod 3 are fixedly connected with floating balls 302, and the outer surface of the swing rod 3 is fixedly A bumper ring 303 is fixedly connected, and the bumper ring 303 contacts the inner wall of the material storage tube 2. The floating ball 302 is used to improve the buoyancy effect of the swing rod 3, thereby effectively improving the floating and swinging ability of the swing rod 3. The bumper ring 303 is used to effectively improve the shaking effect of the extracted material. The bumper ring 303 is tangentially fixed to the swing rod 3, and the diameter of the bumper ring 303 is smaller than the inner diameter of the material storage tube 2. The bumper ring 303 is made of spring steel wire. The small diameter of the bumper ring 303 reduces the occupation of the internal space of the material storage tube 2, thereby effectively improving the swing amplitude of the swing rod 3.

[0041] When the extraction tank body 1 is flipped up and down, the extraction material inside the material retention tube 2 also sinks, and the sinking extraction material collides with the swing rod 3. At the same time, the swing rod 3 cooperates with the floating ball 302 to achieve floating swing, and the collision circle 303 is used to effectively improve the shaking effect of the extraction material, so that the scattered extraction material can fully contact with the rising extraction medium, effectively improving the extraction effect of the plant components in the extraction material.

[0042] Figures 8 to 10As shown, the contact end of the collision ring 303 and the inner wall of the material storage tube 2 is fixedly connected with a magnetic ball 304, and the inner ring of the plug flow sinking plug 204 is fixedly inlaid with a magnetic ring 305, the magnetic ring 305 corresponds to the magnetic ball 304, and the collision ring 303 is spirally arranged with respect to the swing rod 3. When the plug flow sinking plug 204 sinks, the induction of the magnetic ring 305 and the magnetic ball 304 is used to guide the swing of the swing rod 3, thereby further improving the shaking effect of the swing rod 3 on the sinking extraction material;

[0043] When the plug-flow sinking plug 204 sinks, the magnetic coil 305 on the plug-flow sinking plug 204 is inductively coupled to the magnetic ball 304, and when the magnetic coil 305 and the magnetic ball 304 are magnetically attracted to each other, the collision circle 303 approaches the inner wall of the material retention tube 2, thereby guiding the swing rod 3 to swing in that direction. The spirally arranged collision circle 303 enables the swing rod 3 to swing in a circle, thereby further improving the shaking effect of the swing rod 3 on the sinking extraction material.

[0044] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A supercritical extraction device for plant active ingredients, characterized in that: The invention comprises a tank support (101) and an extraction tank body (1) rotatably connected to the middle of the tank support (101); a sealing gland (102) is inserted at the top of the extraction tank body (1); a material storage tube (2) is fixedly connected to the middle of the sealing gland (102); an end plug (201) is fixedly connected to the bottom of the material storage tube (2); an upper flow opening (202) and a lower flow opening (203) are respectively provided at the connection parts between the sealing gland (102) and the end plug (201) and the material storage tube (2); a plug flow sinking plug (204) is sleeved on the outside of the material storage tube (2); the top and bottom ends of the plug flow sinking plug (204) correspond to the sealing gland (102) and the end plug (201) respectively; The left and right ends of the extraction tank body (1) are both fixedly connected with a turning shaft (103), and the turning shaft (103) is rotatably connected to the tank body bracket (101). The top and bottom ends of the extraction tank body (1) are respectively provided with an input port (104) and an output port (105), and the input port (104) and the output port (105) respectively correspond to the top and the bottom of the plug-flow sinking plug (204), and a delivery pipeline (106) is fixedly connected between the input port (104) and the output port (105) and the middle part of the turning shaft (103).

2. The supercritical extraction equipment for plant active ingredients according to claim 1, characterized in that: The interior of the plug-flow sinking plug (204) is hollow and filled with water. A water injection and extraction port (205) is provided at one end of the top of the plug-flow sinking plug (204).

3. The supercritical extraction equipment for plant active ingredients according to claim 1, characterized in that: The top end of the material storage tube (2) passes through the closed gland (102), and a pipe plug (206) is inserted into the top end of the material storage tube (2), and the pipe plug (206) is fixedly connected to the closed gland (102) by bolts.

4. The supercritical extraction equipment for plant active ingredients according to claim 3, characterized in that: The inner end of the pipe plug (206) is fixedly connected to an upper blocking net (207), the upper blocking net (207) is sleeved with the material retention pipe (2), and the upper blocking net (207) is lower than the upper flow port (202).

5. The supercritical extraction equipment for plant active ingredients according to claim 1, characterized in that: A lower blocking net (208) is fixedly connected to the bottom of the material retention pipe (2), and the lower blocking net (208) is higher than the lower flow opening (203).

6. The supercritical extraction equipment for plant active ingredients according to claim 5, characterized in that: The middle of the lower blocking net (208) is fixedly connected to an anchor line (301), the top of the anchor line (301) is fixedly connected to a rocking rod (3), and the rocking rod (3) is sleeved inside the material retention tube (2).

7. The supercritical extraction equipment for plant active ingredients according to claim 6, characterized in that: The top and bottom ends of the swing rod (3) are fixedly connected to floating balls (302), and the outer surface of the swing rod (3) is fixedly connected to a collision ring (303), and the collision ring (303) is in contact with the inner wall of the material storage tube (2).

8. The supercritical extraction equipment for plant active ingredients according to claim 7, characterized in that: The collision ring (303) is tangentially fixed to the rocking rod (3), and the diameter of the collision ring (303) is smaller than the inner diameter of the material storage tube (2). The collision ring (303) is made of spring steel wire.

9. The supercritical extraction equipment for plant active ingredients according to claim 7, characterized in that: The contact end of the collision ring (303) and the inner wall of the material storage tube (2) is fixedly connected with a magnetic ball (304), and the inner ring of the push flow sinking plug (204) is fixedly inlaid with a magnetic ring (305), and the magnetic ring (305) corresponds to the magnetic ball (304), and the collision ring (303) is arranged in a spiral shape with respect to the rocking rod (3).

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