A plant active ingredient extraction device

Abstract

The present invention relates to the technical field of separation devices, and in particular to a plant active ingredient extraction device. A plant active ingredient extraction device comprises a centrifugal shell and a centrifugal mechanism, and the centrifugal mechanism comprises a centrifugal cylinder, a top cover and a filter cylinder. The centrifugal cylinder is conical, and the radius of the upper end of the centrifugal cylinder is greater than the radius of the lower end of the centrifugal cylinder, so that the thickness of the heavy phase liquid at the upper end of the centrifugal cylinder is larger. At the same time, since the radial distance between the liquid storage cavity connected to the light phase liquid channel and the heavy phase liquid channel is large, the heavy phase liquid adhering to the light phase liquid is not easy to enter the heavy phase liquid channel, and the light phase liquid adhering to the heavy phase liquid is not easy to enter the liquid storage cavity, so that the separation effect of the heavy phase liquid and the light phase liquid is better. The present invention provides a plant active ingredient extraction device to solve the problem that the existing centrifuge, when collecting the heavy phase liquid and the light phase liquid, the discharged heavy phase liquid is easy to contain the light phase liquid, and the initially extracted plant liquid contains fine impurities, and the separation effect is poor.

Description

Technical Field

[0001] The invention relates to the technical field of separation devices, and in particular to a plant effective component extraction device. Background Art

[0002] Centrifugal extraction technology is a practical technology that uses centrifugal force fields to achieve liquid-liquid contact mass transfer and phase separation. It is a new type of efficient separation technology that combines liquid-liquid extraction and centrifugal technology. Compared with other extraction technologies, it has the characteristics of short contact time between the two phases, fast phase separation speed, small retention in the equipment, and wide operating range. This technology has been applied by a large number of scientific researchers in many fields such as hydrometallurgy, pharmaceuticals, wastewater treatment, nuclear energy, petrochemicals, and fine chemicals. The realization of centrifugal extraction technology is mostly achieved with the help of centrifugal extractors. Its working principle is as follows: the mixed liquid formed by the mixing of the heavy phase and the light phase enters the drum. Driven by the drum, the mixed liquid and the drum rotate synchronously at high speed to generate centrifugal force. Under the action of centrifugal force, the heavy phase with higher density gradually moves away from the center of the drum and approaches the drum wall during the upward flow process. The light phase with lower density gradually moves away from the drum wall and approaches the center. Finally, the two-phase liquid is thrown into the collection chamber through their respective channels, and the two phases flow out from their respective collection chambers, thereby completing the two-phase separation process. When extracting active ingredients from plants, the primary plant extract and the extraction liquid need to be mixed and sent to a centrifuge to obtain a heavy phase liquid and a light phase liquid after centrifugation.

[0003] For example, the utility model patent with announcement number CN220736306U provides an extraction machine for biochemical engineering, which achieves mixing of the liquid inside the extraction barrel through the rotation and swing of the extraction barrel itself, and the liquid will vibrate during the swing, which has a better mixing effect. When the liquid is subsequently discharged, the existence of the stirring rod is avoided to disturb the stratified solution, which is convenient for better collection of the liquid. However, when collecting the heavy phase liquid and the light phase liquid, the discharged heavy phase liquid is prone to contain the light phase liquid, and the light phase liquid contains the heavy phase liquid, and the initially extracted plant liquid will contain fine impurities, which will affect the effect of extraction and separation. Summary of the invention

[0004] The invention provides a plant active ingredient extraction device to solve the problem that in the existing centrifuge, when collecting heavy phase liquid and light phase liquid, the discharged heavy phase liquid is easy to contain light phase liquid, and the initially extracted plant liquid contains fine impurities, resulting in poor separation effect.

[0005] The plant active ingredient extraction device of the present invention adopts the following technical scheme: the plant active ingredient extraction device comprises a centrifugal shell and a centrifugal mechanism. The centrifugal mechanism comprises a centrifugal cylinder, a top cover and a filter cylinder. The centrifugal cylinder is arranged in the centrifugal shell, the axis of the centrifugal cylinder is arranged vertically, the centrifugal cylinder can rotate around its own axis, the centrifugal cylinder is conical, and the radius of the upper end of the centrifugal cylinder is greater than the radius of the lower end of the centrifugal cylinder.

[0006] The top cover is arranged in the centrifugal cylinder, and the top cover is at the upper end of the centrifugal cylinder, and the top cover and the centrifugal cylinder rotate synchronously. A plurality of heavy phase liquid channels are provided on the peripheral wall of the top cover, each of which is arranged along the up and down direction, and the heavy phase liquid channel is connected to the inside of the centrifugal cylinder. A liquid storage cavity is provided in the middle of the top cover, and the liquid storage cavity is connected to the inside of the centrifugal cylinder. A plurality of light phase liquid channels are provided on the top cover, each of which is arranged along the radial direction of the centrifugal cylinder, and the light phase liquid channel is connected to the liquid storage cavity.

[0007] The filter cartridge is fixedly arranged in the centrifugal cartridge, and the filter cartridge and the centrifugal cartridge are arranged concentrically. The filter cartridge is conical, the radius of the upper end of the filter cartridge is larger than the radius of the lower end of the filter cartridge, and a plurality of first filter holes are opened on the filter cartridge.

[0008] Furthermore, a plurality of through holes are provided on the peripheral wall of the centrifugal cylinder, and each through hole is connected to a light phase liquid channel. A first chamber, a second chamber, and a third chamber are provided in the centrifugal shell from top to bottom. The first chamber includes a light phase liquid storage chamber and a heavy phase liquid storage chamber, and the centrifugal cylinder is rotatably arranged in the first chamber and the second chamber. The heavy phase liquid storage chamber is connected to the heavy phase liquid channel, and a heavy phase liquid outlet is provided on the side wall of the heavy phase liquid storage chamber. The light phase liquid channel, the through hole, and the light phase liquid storage chamber are connected, and a light phase liquid outlet is provided on the side wall of the light phase liquid storage chamber.

[0009] Furthermore, a connecting pipe is fixedly arranged at the lower end of the centrifuge cylinder, the connecting pipe and the centrifuge cylinder are arranged concentrically, and the connecting pipe is located in the third chamber, and a baffle is arranged on the connecting pipe. The side wall of the third chamber is provided with a plant extract inlet, an extraction liquid inlet and a waste liquid outlet.

[0010] Furthermore, a connecting rod is fixedly provided on the top cover, the connecting rod is vertically provided, and the connecting rod is located in the filter cartridge, and a baffle plate is fixedly provided at the lower end of the connecting rod, and the baffle plate is located directly above the connecting pipe.

[0011] Furthermore, a first limiting ring groove and a second limiting ring groove are sequentially arranged on the outer peripheral wall of the centrifugal cylinder from top to bottom. A first ring plate is arranged between the first chamber and the second chamber, and a second ring plate is arranged between the second chamber and the third chamber. The first ring plate and the second ring plate are both fixedly connected to the centrifugal housing, and the first ring plate is rotatably arranged in the first limiting ring groove, and the second ring plate is rotatably arranged in the second limiting ring groove.

[0012] Furthermore, a connecting shaft is fixedly arranged on the top cover, and the connecting shaft and the centrifugal cylinder are arranged concentrically. The plant active ingredient extraction device also includes a driving mechanism, which includes a motor and a coupling. The motor is fixedly arranged on the centrifugal housing, the coupling is arranged on the connecting shaft, and the output shaft of the motor is connected to the coupling.

[0013] Furthermore, the outer peripheral wall of the top cover abuts against the inner peripheral wall of the centrifugal cylinder, and a plurality of stop blocks are fixedly arranged on the outer peripheral wall of the top cover, and the plurality of stop blocks are arranged along the circumference of the centrifugal cylinder. A plurality of stop grooves are opened on the inner peripheral wall of the centrifugal cylinder, and the plurality of stop grooves are arranged along the circumference of the centrifugal cylinder, and each stop block is arranged in a stop groove.

[0014] Furthermore, a plurality of matching holes are provided on the upper end surface of the centrifugal cylinder, and the plurality of matching holes are distributed along the circumference of the centrifugal cylinder. The centrifugal mechanism also includes a limiting ring plate, which is concentrically arranged with the centrifugal cylinder, and the limiting ring plate is arranged at the upper end of the centrifugal cylinder, and the limiting ring plate and the upper end surface of the centrifugal cylinder and the upper side surface of the top cover are abutted. A plurality of matching blocks are arranged on the limiting ring plate, and the plurality of matching blocks are distributed along the circumference of the limiting ring plate, and each matching block is arranged in a matching hole.

[0015] Furthermore, a plurality of second filter holes are provided on the lower side wall of the top cover, and the second filter holes connect the liquid storage cavity and the interior of the centrifugal cylinder.

[0016] Furthermore, the plant active ingredient extraction device also includes a support frame, and the centrifugal shell is fixedly arranged on the support frame.

[0017] The beneficial effects of the present invention are as follows: the plant active ingredient extraction device of the present invention rotates the centrifugal cylinder, and the mixed liquid of the plant primary extract and the extract is passed into the filter cylinder from the lower end of the centrifugal cylinder. The rotation of the centrifugal cylinder separates the mixed liquid under the action of centrifugation, the heavy phase liquid is separated to the outside of the centrifugal cylinder, and the light phase liquid is on the inside of the centrifugal cylinder, and then the heavy phase liquid enters the heavy phase liquid channel, the light phase liquid enters the liquid storage cavity, and enters the light phase liquid channel, and the heavy phase liquid and the light phase liquid are collected separately.

[0018] In the process of gradual separation, the thickness of the heavy phase liquid at the inner wall of the centrifuge cylinder gradually increases along the radial direction of the centrifuge cylinder from bottom to top. As the mixed liquid in the centrifuge cylinder moves upward, the liquid in the centrifuge cylinder will be disturbed, resulting in a mixture of the heavy phase liquid and the light phase liquid at the junction.

[0019] Since the centrifuge cylinder is conical and the radius of the upper end of the centrifuge cylinder is greater than the radius of the lower end of the centrifuge cylinder, firstly, in the process of gradual separation, along the direction from bottom to top, the thickness of the heavy phase liquid at the inner circumferential wall of the centrifuge cylinder gradually increases along the radial direction of the centrifuge cylinder, and the radius of the upper end of the centrifuge cylinder is larger, so that the thickness of the heavy phase liquid at the upper end of the centrifuge cylinder is larger, and at the same time, since the radial distance between the liquid storage chamber connected to the light phase liquid channel and the heavy phase liquid channel is large, the junction of the heavy phase liquid and the light phase liquid is far away from the heavy phase liquid channel and the liquid storage chamber, thereby making it difficult for the heavy phase liquid adhering to the light phase liquid to enter the heavy phase liquid channel, and the light phase liquid adhering to the heavy phase liquid is difficult to enter the liquid storage chamber, thereby making the separation effect of the heavy phase liquid and the light phase liquid better, and the purity of the liquid output better. Secondly, along the direction from bottom to top, the radius of the centrifuge cylinder gradually increases, and the centrifugal force on the mixed liquid gradually increases, so that the separation effect of the heavy phase liquid and the light phase liquid is better.

[0020] The filter cartridge can filter out impurities in the mixed liquid, and the impurities remain on the inner wall of the filter cartridge. Since the filter cartridge is conical, during the upward movement of the mixed liquid, the mixed liquid pushes the impurities to move upward along the inner wall of the filter cartridge, thereby concentrating the impurities at the upper end of the filter cartridge. The centrifugal force at the upper end of the filter cartridge is greater, which can more strongly flush the impurities, resulting in less effective substances attached to the impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 A schematic diagram of the structure of a plant active ingredient extraction device provided in an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of a partial structure of a plant active ingredient extraction device provided by an embodiment of the present invention;

[0024] Figure 3 A cross-sectional view of a partial structure of a plant active ingredient extraction device provided by an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of the structure of a centrifugal mechanism of a plant active ingredient extraction device provided in an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of a partial structure of a centrifugal mechanism of a plant active ingredient extraction device provided by an embodiment of the present invention;

[0027] Figure 6 A front view of a partial structure of a centrifugal mechanism of a plant active ingredient extraction device provided by an embodiment of the present invention;

[0028] Figure 7 for Figure 6 Sectional view at AA in the middle;

[0029] Figure 8 for Figure 6 Sectional view at the middle BB;

[0030] Fig. 9 A schematic structural diagram of a top cover of a centrifugal mechanism of a plant active ingredient extraction device provided by an embodiment of the present invention;

[0031] Fig.10 A bottom view of a centrifugal cylinder of a plant active ingredient extraction device provided in an embodiment of the present invention.

[0032] In the figure: 100, support frame; 101, motor; 108, coupling; 200, centrifugal housing; 201, cover plate; 203, light phase liquid outlet; 204, heavy phase liquid outlet; 205, plant extract inlet; 206, extract inlet; 207, waste liquid outlet; 210, centrifugal cylinder; 211, first limiting ring groove; 212, second limiting ring groove; 213, through hole; 214, matching hole; 215, limiting groove; 216, connecting pipe; 2 17. Baffle; 220. Top cover; 221. Connecting shaft; 222. Heavy phase liquid channel; 223. Light phase liquid channel; 224. Connecting rod; 225. Second filter hole; 226. Limit block; 227. Liquid storage chamber; 228. Baffle plate; 230. Limit ring plate; 241. Second chamber; 242. Third chamber; 243. First ring plate; 244. Second ring plate; 250. Light phase liquid storage chamber; 251. Heavy phase liquid storage chamber; 300. Filter cartridge. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Reference Figures 1 to 102 , a plant active ingredient extraction device provided by an embodiment of the present invention comprises a centrifugal housing 200 and a centrifugal mechanism. The centrifugal mechanism comprises a centrifugal cylinder 210, a top cover 220 and a filter cylinder 300. The centrifugal cylinder 210 is arranged in the centrifugal housing 200, the axis of the centrifugal cylinder 210 is arranged vertically, the centrifugal cylinder 210 can rotate around its own axis, the centrifugal cylinder 210 is conical, and the radius of the upper end of the centrifugal cylinder 210 is greater than the radius of the lower end of the centrifugal cylinder 210.

[0035] The top cover 220 is disposed in the centrifugal cylinder 210, and the top cover 220 is at the upper end of the centrifugal cylinder 210, and the top cover 220 and the centrifugal cylinder 210 rotate synchronously. A plurality of heavy phase liquid channels 222 are provided on the peripheral wall of the top cover 220, and the plurality of heavy phase liquid channels 222 are distributed along the circumference of the top cover 220, and each heavy phase liquid channel 222 is arranged along the up-down direction, and the heavy phase liquid channel 222 is connected to the inside of the centrifugal cylinder 210.

[0036] A liquid storage cavity 227 is provided in the middle of the top cover 220, and the liquid storage cavity 227 is communicated with the inside of the centrifuge cylinder 210. A plurality of light phase liquid channels 223 are provided on the top cover 220, and the plurality of light phase liquid channels 223 are distributed along the circumference of the centrifuge cylinder 210, each light phase liquid channel 223 is arranged along the radial direction of the centrifuge cylinder 210, and the light phase liquid channel 223 is communicated with the liquid storage cavity 227.

[0037] The filter cartridge 300 is fixedly disposed in the centrifugal cartridge 210, and the filter cartridge 300 and the centrifugal cartridge 210 are disposed concentrically. The filter cartridge 300 is conical, and the radius of the upper end of the filter cartridge 300 is greater than the radius of the lower end of the filter cartridge 300. The filter cartridge 300 is provided with a plurality of first filter holes.

[0038] The centrifuge 210 rotates, and the mixed solution of the primary plant extract and the extract is passed into the centrifuge 210 from the lower end of the centrifuge 210. The rotation of the centrifuge 210 causes the mixed solution to separate under the action of centrifugation, the heavy phase liquid is separated to the outside of the centrifuge 210, and the light phase liquid is on the inside of the centrifuge 210, and then the heavy phase liquid enters the heavy phase liquid channel 222. The light phase liquid enters the liquid storage chamber 227 and enters the light phase liquid channel 223, and the heavy phase liquid and the light phase liquid are collected separately.

[0039] In the process of gradual separation, from bottom to top, the thickness of the heavy phase liquid at the inner wall of the centrifuge barrel 210 along the radial direction of the centrifuge barrel 210 gradually increases. As the mixed liquid in the centrifuge barrel 210 moves upward, the liquid in the centrifuge barrel 210 will be disturbed, resulting in a mixture of the heavy phase liquid and the light phase liquid at the junction.

[0040] Since the centrifuge barrel 210 is conical and the radius of the upper end of the centrifuge barrel 210 is larger than the radius of the lower end of the centrifuge barrel 210, first, in the process of gradual separation, along the direction from bottom to top, the thickness of the heavy phase liquid at the inner circumferential wall of the centrifuge barrel 210 gradually increases along the radial direction of the centrifuge barrel 210, and the radius of the upper end of the centrifuge barrel 210 is larger, so that the thickness of the heavy phase liquid at the upper end of the centrifuge barrel 210 is larger. At the same time, since the radial distance between the liquid storage chamber 227 and the heavy phase liquid channel 222 connected to the light phase liquid channel 223 is large, the junction of the heavy phase liquid and the light phase liquid is far away from the heavy phase liquid channel 222 and the liquid storage chamber 227, so that the heavy phase liquid adhering to the light phase liquid is not easy to enter the heavy phase liquid channel 222, and the light phase liquid adhering to the heavy phase liquid is not easy to enter the liquid storage chamber 227, so that the separation effect of the heavy phase liquid and the light phase liquid is better, and the purity of the liquid output is better. Secondly, as the radius of the centrifugal cylinder 210 increases from bottom to top, the centrifugal force on the mixed liquid increases gradually, so that the separation effect of the heavy phase liquid and the light phase liquid is better.

[0041] The filter cartridge 300 can filter impurities in the mixed liquid, and the impurities remain on the inner wall of the filter cartridge 300. Since the filter cartridge 300 is conical, during the upward movement of the mixed liquid, the mixed liquid pushes the impurities to move upward along the inner wall of the filter cartridge 300, thereby concentrating the impurities at the upper end of the filter cartridge 300. The centrifugal force at the upper end of the filter cartridge 300 is relatively large, which can more strongly flush the impurities, resulting in fewer effective substances attached to the impurities.

[0042] In this embodiment, a plurality of through holes 213 are provided on the peripheral wall of the centrifugal cylinder 210, and each through hole 213 is connected to a light phase liquid channel 223. A first chamber, a second chamber 241, and a third chamber 242 are provided in the centrifugal housing 200 from top to bottom. The first chamber includes a light phase liquid storage chamber 250 and a heavy phase liquid storage chamber 251, and the heavy phase liquid storage chamber 251 is located on the upper side of the light phase liquid storage chamber 250. The centrifugal cylinder 210 is rotatably arranged in the first chamber and the second chamber 241. The heavy phase liquid storage chamber 251 is connected to the heavy phase liquid channel 222, and a heavy phase liquid outlet 204 is provided on the side wall of the heavy phase liquid storage chamber 251. The light phase liquid channel 223, the through hole 213, and the light phase liquid storage chamber 250 are connected, and a light phase liquid outlet 203 is provided on the side wall of the light phase liquid storage chamber 250.

[0043] The heavy phase liquid enters the heavy phase liquid storage chamber 251 from the heavy phase liquid channel 222 and flows out from the heavy phase liquid outlet 204. The light phase liquid enters the liquid storage chamber 227 after being filtered through the second filter hole 225, and enters the light phase liquid channel 223, then flows into the light phase liquid storage chamber 250 from the through hole 213, and finally flows out from the light phase liquid outlet 203.

[0044] In this embodiment, a connecting pipe 216 is fixedly provided at the lower end of the centrifugal cylinder 210. The connecting pipe 216 and the centrifugal cylinder 210 are concentrically arranged, and the connecting pipe 216 is in the third chamber 242. A baffle 217 is arranged on the connecting pipe 216. A plant extract inlet 205, an extract inlet 206 and a waste liquid outlet 207 are provided on the side wall of the third chamber 242. The primary plant extract is continuously introduced into the third chamber 242 from the plant extract inlet 205, and the extract is continuously introduced into the third chamber 242 from the extract inlet 206. When the baffle 217 rotates, the primary plant extract and the extract are mixed. Then, the mixed liquid enters the filter cylinder 300 through the connecting pipe 216.

[0045] In this embodiment, a connecting rod 224 is fixedly provided on the top cover 220, the connecting rod 224 is vertically provided, and the connecting rod 224 is located in the filter cartridge 300, and a baffle plate 228 is fixedly provided at the lower end of the connecting rod 224, and the baffle plate 228 is located directly above the connecting tube 216. The baffle plate 228 blocks the mixed liquid gushing out of the connecting tube 216, so that the mixed liquid moves toward the peripheral wall of the lower part of the centrifugal cartridge 210, and prevents the mixed liquid from directly moving to the upper part of the centrifugal cartridge 210, thereby affecting the centrifugal effect.

[0046] In this embodiment, the outer peripheral wall of the centrifugal cylinder 210 is provided with a first limiting ring groove 211 and a second limiting ring groove 212 in sequence from top to bottom. A first ring plate 243 is provided between the first chamber and the second chamber 241, and a second ring plate 244 is provided between the second chamber 241 and the third chamber 242. The first ring plate 243 and the second ring plate 244 are both fixedly connected to the centrifugal housing 200, and the first ring plate 243 is rotatably provided in the first limiting ring groove 211, and the second ring plate 244 is rotatably provided in the second limiting ring groove 212. The first ring plate 243 and the second ring plate 244 are used to limit the centrifugal cylinder 210.

[0047] In this embodiment, a connecting shaft 221 is fixedly provided on the top cover 220, and the connecting shaft 221 and the centrifugal cylinder 210 are arranged concentrically. A detachable cover plate 201 is arranged on the upper end of the centrifugal cylinder 210. The plant active ingredient extraction device also includes a driving mechanism, which includes a motor 101 and a coupling 108. The motor 101 is fixedly provided on the cover plate 201, and the coupling 108 is provided on the connecting shaft 221. The output shaft of the motor 101 is connected to the coupling 108. The motor 101 is started, and the motor 101 drives the top cover 220 to rotate through the connecting shaft 221.

[0048] In this embodiment, the outer peripheral wall of the top cover 220 and the inner peripheral wall of the centrifugal cylinder 210 are against each other, and a plurality of stop blocks 226 are fixedly arranged on the outer peripheral wall of the top cover 220, and the plurality of stop blocks 226 are arranged along the circumference of the centrifugal cylinder 210. A plurality of stop grooves 215 are provided on the inner peripheral wall of the centrifugal cylinder 210, and the plurality of stop grooves 215 are arranged along the circumference of the centrifugal cylinder 210, and each stop block 226 is arranged in a stop groove 215, so that when the top cover 220 rotates, the centrifugal cylinder 210 is driven to rotate synchronously, and the top cover 220 can be disassembled.

[0049] In this embodiment, a plurality of matching holes 214 are provided on the upper end surface of the centrifugal cylinder 210, and the plurality of matching holes 214 are distributed along the circumference of the centrifugal cylinder 210. The centrifugal mechanism also includes a limiting ring plate 230, which is concentrically arranged with the centrifugal cylinder 210, and the limiting ring plate 230 is arranged at the upper end of the centrifugal cylinder 210, and the limiting ring plate 230 and the upper end surface of the centrifugal cylinder 210 and the upper side surface of the top cover 220 are against each other. A plurality of matching blocks are provided on the limiting ring plate 230, and the plurality of matching blocks are distributed along the circumference of the limiting ring plate 230, and each matching block is arranged in a matching hole 214. The limiting ring plate 230 prevents the top cover 220 from being separated from the centrifugal cylinder 210.

[0050] In this embodiment, a plurality of second filter holes 225 are formed on the lower side wall of the top cover 220 , and the second filter holes 225 connect the liquid storage chamber 227 with the interior of the centrifugal cylinder 210 . The second filter holes 225 filter the light phase liquid entering the liquid storage chamber 227 .

[0051] In this embodiment, a plant active ingredient extraction device further includes a support frame 100 , and a centrifugal housing 200 is fixedly disposed on the support frame 100 .

[0052] Working process: start the motor 101, the motor 101 drives the top cover 220 to rotate through the connecting shaft 221, the top cover 220 drives the centrifugal cylinder 210 to rotate synchronously, and the centrifugal cylinder 210 drives the connecting pipe 216 and the baffle 217 to rotate synchronously.

[0053] The primary plant extract is continuously introduced into the third chamber 242 from the plant extract inlet 205, and the extract is continuously introduced into the third chamber 242 from the extract inlet 206. When the baffle 217 rotates, the primary plant extract and the extract are mixed. Then, the mixed solution enters the filter cartridge 300 through the connecting tube 216, and enters the centrifugal cartridge 210 through the filter cartridge 300.

[0054] The rotation of the centrifugal cylinder 210 causes the mixed liquid to separate under the action of centrifugation, the heavy phase liquid is separated to the outside of the centrifugal cylinder 210, and the light phase liquid is on the inside of the centrifugal cylinder 210, and then the heavy phase liquid enters the heavy phase liquid storage chamber 251 from the heavy phase liquid channel 222, and flows out from the heavy phase liquid outlet 204. The light phase liquid enters the liquid storage chamber 227 after being filtered through the second filter hole 225, and enters the light phase liquid channel 223, and then flows into the light phase liquid storage chamber 250 from the through hole 213, and finally flows out from the light phase liquid outlet 203.

[0055] In the process of gradual separation, from bottom to top, the thickness of the heavy phase liquid at the inner wall of the centrifuge barrel 210 along the radial direction of the centrifuge barrel 210 gradually increases. As the mixed liquid in the centrifuge barrel 210 moves upward, the liquid in the centrifuge barrel 210 will be disturbed, resulting in a mixture of the heavy phase liquid and the light phase liquid at the junction.

[0056] Since the centrifuge barrel 210 is conical and the radius of the upper end of the centrifuge barrel 210 is larger than the radius of the lower end of the centrifuge barrel 210, first, in the process of gradual separation, along the direction from bottom to top, the thickness of the heavy phase liquid at the inner circumferential wall of the centrifuge barrel 210 gradually increases along the radial direction of the centrifuge barrel 210, and the radius of the upper end of the centrifuge barrel 210 is larger, so that the thickness of the heavy phase liquid at the upper end of the centrifuge barrel 210 is larger. At the same time, since the radial distance between the liquid storage chamber 227 and the heavy phase liquid channel 222 connected to the light phase liquid channel 223 is large, the junction of the heavy phase liquid and the light phase liquid is far away from the heavy phase liquid channel 222 and the liquid storage chamber 227, so that the heavy phase liquid adhering to the light phase liquid is not easy to enter the heavy phase liquid channel 222, and the light phase liquid adhering to the heavy phase liquid is not easy to enter the liquid storage chamber 227, so that the separation effect of the heavy phase liquid and the light phase liquid is better, and the purity of the liquid output is better.

[0057] Secondly, as the radius of the centrifugal cylinder 210 increases from bottom to top, the centrifugal force on the mixed liquid increases gradually, so that the separation effect of the heavy phase liquid and the light phase liquid is better.

[0058] The filter cartridge 300 can filter impurities in the mixed liquid, and the impurities remain on the inner wall of the filter cartridge 300. Since the filter cartridge 300 is conical, during the upward movement of the mixed liquid, the mixed liquid pushes the impurities to move upward along the inner wall of the filter cartridge 300, thereby concentrating the impurities at the upper end of the filter cartridge 300. The centrifugal force at the upper end of the filter cartridge 300 is relatively large, which can more strongly flush the impurities, resulting in fewer effective substances attached to the impurities.

[0059] After the extraction is completed, if there is residual raw liquid, the waste liquid outlet 207 is opened to release the residual raw liquid. Then the cover plate 201 and the limiting ring plate 230 are removed, the top cover 220 and the filter cartridge 300 are taken out, and the impurities on the filter cartridge 300 are cleaned to end the extraction process.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A plant active ingredient extraction device, characterized in that: The centrifugal machine comprises a centrifugal housing and a centrifugal mechanism; the centrifugal mechanism comprises a centrifugal cylinder, a top cover and a filter cylinder; the centrifugal cylinder is arranged in the centrifugal housing, the axis of the centrifugal cylinder is arranged vertically, the centrifugal cylinder can rotate around its own axis, the centrifugal cylinder is conical, and the radius of the upper end of the centrifugal cylinder is greater than the radius of the lower end of the centrifugal cylinder; The top cover is arranged in the centrifugal cylinder, and the top cover is at the upper end of the centrifugal cylinder, and the top cover and the centrifugal cylinder rotate synchronously; the outer peripheral wall of the top cover and the inner peripheral wall of the centrifugal cylinder are abutted against each other, and a plurality of heavy phase liquid channels are provided on the peripheral wall of the top cover, each heavy phase liquid channel is provided along the up and down direction, and the heavy phase liquid channel is connected with the inside of the centrifugal cylinder; a liquid storage cavity is provided in the middle of the top cover, and the liquid storage cavity is connected with the inside of the centrifugal cylinder; a plurality of light phase liquid channels are provided on the top cover, and the plurality of light phase liquid channels are distributed along the circumference of the centrifugal cylinder, each light phase liquid channel is provided along the radial direction of the centrifugal cylinder, and the light phase liquid channel is connected with the liquid storage cavity; The filter cartridge is fixedly arranged in the centrifugal cartridge, and the filter cartridge and the centrifugal cartridge are arranged concentrically; the filter cartridge is conical, the radius of the upper end of the filter cartridge is larger than the radius of the lower end of the filter cartridge, a plurality of first filter holes are provided on the filter cartridge, a plurality of through holes are provided on the peripheral wall of the centrifugal cartridge, and each through hole is connected with a light phase liquid channel; a first chamber, a second chamber and a third chamber are provided in the centrifugal shell from top to bottom; the first chamber includes a light phase liquid storage chamber and a heavy phase liquid storage chamber, and the centrifugal cartridge is rotatably arranged in the first chamber and the second chamber; the heavy phase liquid storage chamber is connected with the heavy phase liquid channel, and a heavy phase liquid outlet is provided on the side wall of the heavy phase liquid storage chamber; the light phase liquid channel, the through holes and The light phase liquid storage chamber is connected, and a light phase liquid outlet is provided on the side wall of the light phase liquid storage chamber. A connecting pipe is fixedly arranged at the lower end of the centrifuge cylinder, the connecting pipe and the centrifuge cylinder are arranged concentrically, and the connecting pipe is located in the third chamber, and a baffle is provided on the connecting pipe; a plant extract inlet, an extraction liquid inlet and a waste liquid outlet are provided on the side wall of the third chamber. In the process of gradual separation, the thickness of the heavy phase liquid at the inner circumferential wall of the centrifuge cylinder gradually increases along the radial direction of the centrifuge cylinder from bottom to top, and the radius of the upper end of the centrifuge cylinder is larger than the radius of the lower end of the centrifuge cylinder, so that the thickness of the heavy phase liquid at the upper end of the centrifuge cylinder is larger than the thickness of the heavy phase liquid at the lower end of the centrifuge cylinder.

2. A plant active ingredient extraction device according to claim 1, characterized in that: A connecting rod is fixedly arranged on the top cover, the connecting rod is vertically arranged, and the connecting rod is located in the filter cartridge. A baffle plate is fixedly arranged at the lower end of the connecting rod, and the baffle plate is located directly above the connecting pipe.

3. A plant active ingredient extraction device according to claim 1, characterized in that: A first limiting ring groove and a second limiting ring groove are sequentially arranged on the outer peripheral wall of the centrifugal cylinder from top to bottom; a first ring plate is arranged between the first chamber and the second chamber, and a second ring plate is arranged between the second chamber and the third chamber. The first ring plate and the second ring plate are both fixedly connected to the centrifugal outer shell, and the first ring plate is rotatably arranged in the first limiting ring groove, and the second ring plate is rotatably arranged in the second limiting ring groove.

4. A plant active ingredient extraction device according to claim 1, characterized in that: A connecting shaft is fixedly arranged on the top cover, and the connecting shaft and the centrifugal cylinder are arranged concentrically; the plant active ingredient extraction device also includes a driving mechanism, which includes a motor and a coupling. The motor is fixedly arranged on the centrifugal housing, the coupling is arranged on the connecting shaft, and the output shaft of the motor is connected to the coupling.

5. A plant active ingredient extraction device according to claim 1, characterized in that: A plurality of limit blocks are fixedly arranged on the outer peripheral wall of the top cover, and the plurality of limit blocks are arranged along the circumference of the centrifuge cylinder; a plurality of limit grooves are opened on the inner peripheral wall of the centrifuge cylinder, and the plurality of limit grooves are arranged along the circumference of the centrifuge cylinder, and each limit block is arranged in a limit groove.

6. A plant active ingredient extraction device according to claim 1, characterized in that: A plurality of matching holes are provided on the upper end surface of the centrifugal cylinder, and the plurality of matching holes are distributed along the circumference of the centrifugal cylinder; the centrifugal mechanism also includes a limiting ring plate, which is concentrically arranged with the centrifugal cylinder, and the limiting ring plate is arranged at the upper end of the centrifugal cylinder, and the limiting ring plate and the upper end surface of the centrifugal cylinder and the upper side surface of the top cover are abutted against each other; a plurality of matching blocks are provided on the limiting ring plate, and the plurality of matching blocks are distributed along the circumference of the limiting ring plate, and each matching block is arranged in a matching hole.

7. A plant active ingredient extraction device according to claim 1, characterized in that: A plurality of second filter holes are provided on the lower side wall of the top cover, and the second filter holes enable the liquid storage cavity to communicate with the interior of the centrifugal cylinder.

8. A plant active ingredient extraction device according to claim 1, characterized in that: It also includes a support frame, on which the centrifugal shell is fixedly arranged.

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