Drying device for extracting resveratrol from polygonum cuspidatum

Abstract

The drying device comprises a drying cylinder and fixing plates, the fixing plates are symmetrically arranged at the two ends of the drying cylinder, rotating shafts are symmetrically and fixedly installed on the drying cylinder, the rotating shafts are movably installed in the fixing plates, a first driving mechanism is arranged on the side wall of the fixing plate at one end, and a second driving mechanism is arranged on the side wall of the fixing plate at the other end. According to the resveratrol extraction device, the drying cylinder is arranged, before resveratrol is extracted, fresh polygonum cuspidatum needs to be dried until the water content is lower than 25%, then the polygonum cuspidatum is smashed into raw material powder with the particle size of 180-200 meshes in the smashing machine, the polygonum cuspidatum raw material is dried through the drying cylinder, and the resveratrol extraction device can be used for extracting resveratrol. The first driving motor can be controlled through the control equipment, the drying cylinder can be made to rotate, the polygonum cuspidatum raw materials in the drying cylinder can be rolled, the polygonum cuspidatum raw materials at the bottom can also be fully dried, and the polygonum cuspidatum drying device has the advantages of being high in practicability and good in drying effect.

Description

Technical Field

[0001] The utility model relates to the technical field of resveratrol extraction, in particular to a drying device for extracting resveratrol from polygonum cuspidatum. Background Art

[0002] Resveratrol is a non-flavonoid polyphenol organic compound. It is an antitoxin produced by many plants when stimulated. It also has antioxidant, anti-inflammatory, anti-cancer and cardiovascular protection effects. In the process of producing resveratrol with Polygonum cuspidatum, in order to ensure the best fermentation effect, the raw materials must be crushed to less than 10 mesh and the amount of water added must reach more than 70%. However, in the extraction process, the excessive water content of the plant extract will dilute the solvent, making it difficult to extract the effective ingredients. Generally, the water content of the plant extract is required to be less than 30%. At present, domestic factories all use natural air drying after fermentation or adding water-absorbing substances during extraction. However, there are defects. The natural air drying method requires a large site, and the air drying speed is too slow, making it difficult to achieve large-scale production. At the same time, the effects of oxygen and ultraviolet light in the air drying process increase the degradation of the effective ingredients in the raw materials, and the addition of water-absorbing substances can easily affect the quality of the product due to the addition of other unknown impurities during extraction. Currently, in the industrial production process, a vacuum dryer is required to dry the raw materials. During the operation of the existing vacuum dryer, the raw materials are easily hardened during the drying process, and the drying effect is poor, so it is very necessary to design a drying device for extracting resveratrol from Polygonum cuspidatum that is highly practical and has a good drying effect. Utility Model Content

[0003] The utility model aims to provide a drying device for extracting resveratrol from Polygonum cuspidatum to solve the problems raised in the above-mentioned background technology.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: A drying device for extracting resveratrol from Polygonum cuspidatum, comprising a drying cylinder and a fixed plate, the fixed plates are symmetrically arranged at both ends of the drying cylinder, the drying cylinder is symmetrically fixedly installed with a rotating shaft and the rotating shaft is movably installed in the fixed plate, a first driving mechanism is provided on the side wall of the fixed plate at one end, a hollow heating rod is movably installed in the drying cylinder, a hollow heat-conducting rod is symmetrically fixedly installed on the hollow heating rod, the hollow heat-conducting rod is symmetrically provided with exhaust holes, a filter is fixedly installed in the exhaust hole, one end of the hollow heating rod passes through the corresponding fixed plate and is movably provided with a connecting pipe, a vacuum pump is provided on the connecting pipe, a second driving mechanism is provided on the side wall of the fixed plate at the other end, the drying cylinder is symmetrically penetrated with openings and an arc-shaped sealing plate is provided in the opening, a handle groove is provided on the outer arc surface of the arc-shaped sealing plate, and a pressure gauge is fixedly installed through the side wall of the drying cylinder.

[0005] According to the above technical solution, the first driving mechanism includes a first driving motor fixedly mounted on the side wall of the fixed plate at one end, a first gear is fixedly mounted on the output end of the first driving motor, one end of the rotating shaft adjacent to the first driving motor passes through the corresponding fixed plate and is fixedly mounted with a second gear, the second gear is meshed with the first gear, and a first protective cover is fixedly mounted on the side wall of the fixed plate at one end and the first driving motor is located in the first protective cover.

[0006] According to the above technical solution, the second driving mechanism includes a second driving motor fixedly mounted on the side wall of the fixed plate at the other end, a third gear is fixedly mounted on the output end of the second driving motor, a fourth gear is fixedly mounted on the hollow heating rod, the fourth gear is meshed with the third gear, a second protective cover is fixedly mounted on the side wall of the fixed plate at the other end and the second driving motor is located in the second protective cover, and the vacuum pump is fixedly mounted on the side wall of the second protective cover.

[0007] According to the above technical solution, the drying cylinder is symmetrically provided with placement grooves, a spring is fixedly installed in the placement groove at one end away from the arc-shaped sealing plate, a movable plate is fixedly installed at the telescopic end of the spring, an insertion rod is fixedly installed at one end of the movable plate adjacent to the arc-shaped sealing plate, the arc-shaped sealing plate is symmetrically provided with slots, the insertion rod is movably installed in the corresponding slots, a pull rod is fixedly installed at one end of the movable plate away from the arc-shaped sealing plate, one end of the pull rod passes through the drying cylinder and is fixedly provided with a pull ring.

[0008] According to the above technical solution, a limiting ring is symmetrically fixedly installed in the drying cylinder, and the inner arc surface of the arc-shaped sealing plate is in contact with the outer wall surface of the limiting ring.

[0009] According to the above technical solution, a sealing gasket is provided between the limiting ring and the arc-shaped sealing plate.

[0010] According to the above technical solution, the hollow heat-conducting rods are arranged in sequence on the hollow heating rods.

[0011] Compared with the prior art, the beneficial effects achieved by the utility model are as follows: the utility model is provided with a drying cylinder, and before resveratrol is extracted, fresh knotweed needs to be dried to a water content of less than 25%, and then ground into raw material powder with a particle size of 180-200 mesh in a pulverizer, and the knotweed raw material is dried by the drying cylinder, and the first driving motor can be controlled by a control device, so that the drying cylinder can be rotated, and the knotweed raw material inside is rolled, so that the knotweed raw material at the bottom can also be fully dried, and at the same time, the knotweed is prevented from adhering to the inner wall of the drying cylinder, so that the knotweed raw material is fully dried, and the second driving motor can be controlled by the control device, and then the third gear, the fourth gear, the hollow heating rod and the hollow heat conducting rod can be driven to rotate in sequence, and the internal knotweed raw material is uniformly stirred and heated, and the heat conducting area can be increased by the staggered arrangement of the hollow heat conducting rods, so as to improve the drying efficiency of the knotweed raw material, so that the knotweed raw material is fully dried, and the drying effect is good, which is convenient for the later resveratrol. Extraction is carried out, the rotation directions of the drying cylinder and the hollow heating rod are opposite, and the internal air and moisture are extracted through the vacuum pump. The filter screen blocks the knotweed in the drying cylinder, and the internal pressure of the drying cylinder can be monitored by the pressure gauge. The elastic force of the spring can fix the plug rod in the corresponding slot, and the arc sealing plate is fixed, so that the drying cylinder can operate stably, which is convenient for people to take and put the knotweed raw materials. By pulling the pull rod, the plug rod can be driven to leave the corresponding slot, and the arc sealing plate can be disassembled. The arc sealing plate is symmetrically arranged, and a single piece can be disassembled to take and put the knotweed raw materials, and it is convenient for people to clean the drying cylinder and the arc sealing plate. The arc sealing plate can be limited by the limiting ring, so that it can be stably fitted with the drying cylinder. The sealing gasket can increase the sealing between the limiting ring and the arc sealing plate to prevent poor sealing, causing external air and impurities to enter the interior, affecting the drying process of the knotweed raw materials, and keeping the air pressure inside the drying cylinder stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a schematic diagram of the main cross-sectional view of the utility model;

[0014] Figure 2 This utility model Figure 1 The enlarged schematic diagram of point A in the middle;

[0015] Figure 3 It is a three-dimensional schematic diagram of the drying cylinder of the utility model;

[0016] In the figure: 1-drying cylinder, 2-fixed plate, 3-rotating shaft, 4-hollow heating rod, 5-hollow heat conducting rod, 6-exhaust hole, 7-filter, 8-connecting pipe, 9-vacuum pump, 10-arc sealing plate, 11-handle groove, 12-pressure gauge, 13-pressure gauge, 14-first gear, 15-second gear, 16-first protective cover, 17-second drive motor, 18-third gear, 19-fourth gear, 20-second protective cover, 21-placement groove, 22-spring, 23-movable plate, 24-insertion rod, 25-slot, 26-pull rod, 27-pull ring, 28-limiting ring, 29-sealing pad. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-3The utility model provides a technical solution: a drying device for extracting resveratrol from Polygonum cuspidatum, comprising a drying cylinder 1 and a fixed plate 2, the fixed plates 2 are symmetrically arranged at both ends of the drying cylinder 1, the drying cylinder 1 is symmetrically fixedly installed with a rotating shaft 3, and the rotating shaft 3 is movably installed in the fixed plate 2, a first driving mechanism is provided on the side wall of the fixed plate 2 at one end, a hollow heating rod 4 is movably installed in the drying cylinder 1, a hollow heat-conducting rod 5 is symmetrically fixedly installed on the hollow heating rod 4, the hollow heat-conducting rod 5 is symmetrically provided with an exhaust hole 6, a filter screen 7 is fixedly installed in the exhaust hole 6, one end of the hollow heating rod 4 passes through the corresponding fixed plate 2 and is movably installed with a connecting pipe 8, a vacuum pump 9 is provided on the connecting pipe 8, a second driving mechanism is provided on the side wall of the fixed plate 2 at the other end, the drying cylinder 1 is symmetrically penetrated with an opening, and an arc-shaped sealing plate 10 is provided in the opening, a handle groove 11 is provided on the outer arc surface of the arc-shaped sealing plate 10, the drying cylinder 1 A pressure gauge 12 is fixedly installed through the side wall. When the utility model is used, before extracting resveratrol, fresh knotweed needs to be dried to a water content of less than 25%, and then crushed into a raw material powder with a particle size of 180-200 mesh in a pulverizer, and the knotweed raw material is dried by the drying cylinder 1. The first driving mechanism drives the drying cylinder 1 to rotate, and the knotweed raw material inside is rolled, so that the knotweed raw material at the bottom can also be fully dried, and at the same time, the knotweed is prevented from adhering to the inner wall of the drying cylinder 1, so that the knotweed raw material is fully dried. At the same time, the hollow heating rod 4 and the hollow heat conducting rod 5 are driven to rotate by the second driving mechanism, and the internal knotweed raw material is uniformly stirred and heated, so that the knotweed raw material is fully dried, and the drying effect is good. The rotation directions of the drying cylinder 1 and the hollow heating rod 4 are opposite, and the internal air and moisture are extracted by the vacuum pump 9, and the filter screen 7 blocks the knotweed in the drying cylinder 1, and the internal pressure of the drying cylinder 1 can be monitored by the pressure gauge 12;

[0019] Specifically, the first driving mechanism includes a first driving motor 13 fixedly mounted on the side wall of the fixed plate 2 at one end, a first gear 14 fixedly mounted on the output end of the first driving motor 13, one end of the rotating shaft 3 adjacent to the first driving motor 13 passes through the corresponding fixed plate 2 and is fixedly mounted with a second gear 15, the second gear 15 is meshed with the first gear 14, a first protective cover 16 is fixedly mounted on the side wall of the fixed plate 2 at one end and the first driving motor 13 is located in the first protective cover 16, the first driving motor 13 can be controlled by the control device, and then the first gear 14, the second gear 15 and the rotating shaft 3 can be driven to rotate in turn, and then the drying cylinder 1 can be rotated to roll the knotweed raw materials inside, so that the knotweed raw materials at the bottom can also be fully dried, so that the knotweed raw materials are fully dried;

[0020] Specifically, the second driving mechanism includes a second driving motor 17 fixedly mounted on the side wall of the fixed plate 2 at the other end, a third gear 18 fixedly mounted on the output end of the second driving motor 17, a fourth gear 19 fixedly mounted on the hollow heating rod 4, the fourth gear 19 meshing with the third gear 18, a second protective cover 20 fixedly mounted on the side wall of the fixed plate 2 at the other end and the second driving motor 17 is located in the second protective cover 20, the vacuum pump 9 fixedly mounted on the side wall of the second protective cover 20, the second driving motor 17 can be controlled by the control device, and then the third gear 18 and the fourth gear 19 and the hollow heating rod 4 can be driven to rotate in turn, the internal knotweed raw material is evenly stirred and heated, so that the knotweed raw material is fully dried;

[0021] Specifically, the drying cylinder 1 is symmetrically provided with a placement groove 21, a spring 22 is fixedly installed at one end of the placement groove 21 away from the arc-shaped sealing plate 10, a movable plate 23 is fixedly installed at the telescopic end of the spring 22, an insertion rod 24 is fixedly installed at one end of the movable plate 23 adjacent to the arc-shaped sealing plate 10, the arc-shaped sealing plate 10 is symmetrically provided with a slot 25, the insertion rod 24 is movably installed in the corresponding slot 25, the movable plate 23 is fixedly provided with a pull rod 26 at one end away from the arc-shaped sealing plate 10, and the pull rod 26 is fixedly installed at one end of the movable plate 23 The end passes through the drying cylinder 1 and is fixedly installed with a pull ring 27. The elastic force of the spring 22 can fix the insertion rod 24 in the corresponding slot 25, fix the arc-shaped sealing plate 10, and make the drying cylinder 1 run stably, which is convenient for people to take and put the knotweed raw materials. By pulling the pull rod 26, the insertion rod 24 can be driven to leave the corresponding slot 25, and the arc-shaped sealing plate 10 can be disassembled. The arc-shaped sealing plate 10 is symmetrically arranged, and a single piece can be disassembled to take and put the knotweed raw materials, which is convenient for people to clean the drying cylinder 1 and the arc-shaped sealing plate 10;

[0022] Specifically, a limiting ring 28 is symmetrically fixedly installed in the drying cylinder 1, and the inner arc surface of the arc-shaped sealing plate 10 is in contact with the outer wall surface of the limiting ring 28. The limiting ring 28 can limit the arc-shaped sealing plate 10, so that it can be stably fitted with the drying cylinder 1.

[0023] Specifically, a sealing gasket 29 is provided between the limiting ring 28 and the arc-shaped sealing plate 10, and the sealing gasket 29 can increase the sealing between the limiting ring 28 and the arc-shaped sealing plate 10 to prevent poor sealing, which causes external air and impurities to enter the interior and affect the drying process of the knotweed raw material, while maintaining the air pressure inside the drying cylinder 1 stable;

[0024] Specifically, the hollow heat-conducting rods 5 are arranged in a staggered manner on the hollow heating rods 4. The staggered arrangement of the hollow heat-conducting rods 5 can increase the heat-conducting area and improve the drying efficiency of the knotweed raw material.

[0025] Working principle: When the utility model is used, before extracting resveratrol, fresh knotweed needs to be dried to a moisture content of less than 25%, and then crushed into raw material powder with a particle size of 180-200 meshes in a pulverizer, and the knotweed raw material is dried by a drying cylinder 1. A control device is provided outside, and the first drive motor 13 can be controlled by the control device, and then the first gear 14, the second gear 15 and the rotating shaft 3 can be driven to rotate in turn, so that the drying cylinder 1 can be rotated, and the knotweed raw material inside is rolled, so that the knotweed raw material at the bottom is also The knotweed raw material can be fully dried, and the knotweed is prevented from adhering to the inner wall of the drying cylinder 1, so that the knotweed raw material is fully dried. The second driving motor 17 can be controlled by the control device, and then the third gear 18, the fourth gear 19, the hollow heating rod 4 and the hollow heat-conducting rod 5 can be driven to rotate in sequence, and the knotweed raw material inside can be uniformly stirred and heated. The staggered arrangement of the hollow heat-conducting rods 5 can increase the heat-conducting area, improve the drying efficiency of the knotweed raw material, make the knotweed raw material fully dried, and have a good drying effect, which is convenient for the later extraction of resveratrol. The drying cylinder 1 and the hollow heating rod 4 rotate in opposite directions, and the air and moisture inside are extracted by the vacuum pump 9. The filter screen 7 blocks the knotweed in the drying cylinder 1. The pressure inside the drying cylinder 1 can be monitored by the pressure gauge 12. The elastic force of the spring 22 can fix the plug 24 in the corresponding slot 25, fix the arc sealing plate 10, and make the drying cylinder 1 run stably, which is convenient for people to take and put the knotweed raw materials. By pulling the pull rod 26, the plug 24 can be driven to leave the corresponding slot 25, and the arc sealing plate 10 can be moved. The arc-shaped sealing plate 10 is symmetrically arranged, and a single piece can be disassembled to take and put the knotweed raw material. At the same time, it is convenient for people to clean the drying cylinder 1 and the arc-shaped sealing plate 10. The arc-shaped sealing plate 10 can be limited by the limiting ring 28, so that it can be stably fitted with the drying cylinder 1. The sealing gasket 29 can increase the sealing between the limiting ring 28 and the arc-shaped sealing plate 10 to prevent poor sealing, which will cause external air and impurities to enter the interior and affect the drying process of the knotweed raw material, while keeping the air pressure inside the drying cylinder 1 stable.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A drying device for extracting resveratrol from Polygonum cuspidatum, comprising a drying cylinder (1) and a fixing plate (2), characterized in that: The fixing plate (2) is symmetrically arranged at both ends of the drying cylinder (1); the drying cylinder (1) is symmetrically fixedly provided with a rotating shaft (3) and the rotating shaft (3) is movably installed in the fixing plate (2); a first driving mechanism is provided on a side wall of the fixing plate (2) at one end; a hollow heating rod (4) is movably installed in the drying cylinder (1); a hollow heat conducting rod (5) is symmetrically fixedly installed on the hollow heating rod (4); the hollow heat conducting rod (5) is symmetrically provided with an exhaust hole (6) and a fixed exhaust hole (6) is provided in the exhaust hole (6) A filter screen (7) is installed, one end of the hollow heating rod (4) passes through the corresponding fixed plate (2) and is movably installed with a connecting pipe (8), a vacuum pump (9) is provided on the connecting pipe (8), and a second driving mechanism is provided on the side wall of the fixed plate (2) at the other end, the drying cylinder (1) is symmetrically penetrated with openings and an arc-shaped sealing plate (10) is provided in the opening, the outer arc surface of the arc-shaped sealing plate (10) is provided with a handle groove (11), and a pressure gauge (12) is fixedly installed through the side wall of the drying cylinder (1).

2. A drying device for extracting resveratrol from Polygonum cuspidatum according to claim 1, characterized in that: The first driving mechanism comprises a first driving motor (13) fixedly mounted on a side wall of the fixing plate (2) at one end, a first gear (14) fixedly mounted on an output end of the first driving motor (13), one end of a rotating shaft (3) adjacent to the first driving motor (13) passes through the corresponding fixing plate (2) and is fixedly mounted with a second gear (15), the second gear (15) and the first gear (14) are meshed, and a first protective cover (16) is fixedly mounted on a side wall of the fixing plate (2) at one end, and the first driving motor (13) is located in the first protective cover (16).

3. A drying device for extracting resveratrol from Polygonum cuspidatum according to claim 2, characterized in that: The second driving mechanism comprises a second driving motor (17) fixedly mounted on the side wall of the fixing plate (2) at the other end, a third gear (18) fixedly mounted on the output end of the second driving motor (17), a fourth gear (19) fixedly mounted on the hollow heating rod (4), the fourth gear (19) meshing with the third gear (18), a second protective cover (20) fixedly mounted on the side wall of the fixing plate (2) at the other end and the second driving motor (17) is located in the second protective cover (20), and the vacuum pump (9) fixedly mounted on the side wall of the second protective cover (20).

4. A drying device for extracting resveratrol from Polygonum cuspidatum according to claim 3, characterized in that: The drying cylinder (1) is symmetrically provided with placement grooves (21), a spring (22) is fixedly installed at one end of the placement groove (21) away from the arc-shaped sealing plate (10), a movable plate (23) is fixedly installed at the telescopic end of the spring (22), an insertion rod (24) is fixedly installed at one end of the movable plate (23) adjacent to the arc-shaped sealing plate (10), the arc-shaped sealing plate (10) is symmetrically provided with slots (25), the insertion rod (24) is movably installed in the corresponding slots (25), a pull rod (26) is fixedly installed at one end of the movable plate (23) away from the arc-shaped sealing plate (10), one end of the pull rod (26) passes through the drying cylinder (1) and is fixedly provided with a pull ring (27).

5. A drying device for extracting resveratrol from Polygonum cuspidatum according to claim 4, characterized in that: A limiting ring (28) is symmetrically fixedly installed inside the drying cylinder (1), and the inner arc surface of the arc-shaped sealing plate (10) is in contact with the outer wall surface of the limiting ring (28).

6. A drying device for extracting resveratrol from Polygonum cuspidatum according to claim 5, characterized in that: A sealing gasket (29) is provided between the limiting ring (28) and the arc-shaped sealing plate (10).

7. A drying device for extracting resveratrol from Polygonum cuspidatum according to claim 6, characterized in that: The hollow heat-conducting rods (5) are arranged in sequence and in a staggered manner on the hollow heating rods (4).

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