Flash type continuous microwave extraction device

Abstract

The utility model discloses a flash type continuous microwave extraction device, which relates to the technical field of natural product active ingredient extraction, and comprises a flash type extraction mechanism, an extraction container and a microwave source, the flash type extraction mechanism comprises a base, a lifting assembly and a crushing assembly, the extraction container is arranged on the base, the extraction container is used for containing materials to be extracted and a solvent, and the microwave source is arranged on the base. The lifting assembly is arranged on the base close to the extraction container; the crushing assembly comprises a crushing motor and a crushing tool bit, the crushing motor is arranged on the lifting assembly, the output end of the crushing motor is vertically arranged downwards and connected with the crushing tool bit, the lifting assembly can drive the crushing motor and the crushing tool bit to move up and down, and the crushing motor can drive the crushing tool bit to rotate. The crushing device is used for crushing to-be-extracted materials in the extraction container; the microwave source is arranged on the extraction container and is used for performing microwave extraction on the to-be-extracted material in the extraction container.

Description

Technical Field

[0001] The utility model relates to the technical field of extraction of effective components of natural products, in particular to a flash-type continuous microwave extraction device. Background Art

[0002] Natural products contain highly complex chemical compositions, and extracting the desired active ingredients is crucial for natural product research. Traditional methods for extracting active ingredients from natural products, such as decoction, reflux, and maceration, while each possess their own advantages, often suffer from drawbacks such as long separation times, low extraction yields, and cumbersome procedures. The recent development of modern extraction and separation technologies, such as enzymatic extraction, flash extraction, and membrane separation, has provided new avenues for the rapid and efficient extraction and separation of active ingredients from natural products.

[0003] Prior art, such as Chinese patent publication CN212236073U, discloses a flash extractor with heating functionality. The extractor includes a support base, an up / down adjustment mechanism, a support arm, a first drive motor, a crushing blade, a bottom heating device, and sidewall heating devices. The bottom heating device includes a second drive motor, a conductive slip ring, a circular plate, and a first heating wire; the sidewall heating device includes a support frame, a curved plate, and a second heating wire. Using these devices, the material can be preheated directly within the flash extractor, seamlessly integrating preheating and extraction, improving the efficiency of extracting the material components.

[0004] However, the method of simply preheating the material and then extracting the components has a limited effect on improving the extraction efficiency. As the extraction and separation technology of the active ingredients of natural products continues to develop and improve, how to use multiple extraction and separation processes in combination to obtain the active ingredients of natural products to the greatest extent is a problem that needs to be solved urgently. Utility Model Content

[0005] The purpose of the utility model is to provide a flash continuous microwave extraction device to solve the problems existing in the above-mentioned prior art. By combining the flash extraction process with the microwave extraction process, the effective components of natural products can be efficiently extracted, and the extracted effective components are of high purity.

[0006] To achieve the above purpose, the present invention provides the following solutions:

[0007] The utility model provides a flash-type continuous microwave extraction device, comprising a flash-type extraction mechanism, an extraction container and a microwave source, wherein the flash-type extraction mechanism comprises a base, a lifting assembly and a crushing assembly, the extraction container is arranged on the base, the extraction container is used to hold materials to be extracted and a solvent, the lifting assembly is arranged on the base at a position close to the extraction container; the crushing assembly comprises a crushing motor and a crushing cutter head, the crushing motor is arranged on the lifting assembly, and the output end of the crushing motor is arranged vertically downward and connected to the crushing cutter head, the lifting assembly can drive the crushing motor and the crushing cutter head to move up and down, and the crushing motor can drive the crushing cutter head to rotate to crush the materials to be extracted in the extraction container; the microwave source is arranged on the extraction container, and the microwave source is used to perform microwave extraction on the materials to be extracted in the extraction container.

[0008] Preferably, the extraction container is a double-layer shell structure, the inner shell of the extraction container is used to accommodate the material to be extracted and the solvent; the microwave source is arranged between the inner shell and the outer shell of the extraction container, and the inner shell of the extraction container can allow microwaves emitted by the microwave source to penetrate, and the outer shell of the extraction container can block and reflect the microwaves emitted by the microwave source.

[0009] Preferably, the microwave source includes a plurality of microwave generators, and all of the microwave generators are evenly arranged around the inner shell of the extraction container.

[0010] Preferably, the inner shell of the extraction container is a polytetrafluoroethylene shell; and the outer shell of the extraction container is a stainless steel shell.

[0011] Preferably, the lifting assembly includes a mounting tube, a lifting motor, a screw rod, a moving block and a connecting rod, the mounting tube is vertically fixed on the base, and a rectangular through groove is provided on the side of the mounting tube close to the extraction container, and the rectangular through groove extends along the axial direction of the mounting tube; the lifting motor is arranged at the top of the mounting tube, and the output end of the lifting motor extends vertically downward into the mounting tube and is connected to the screw rod, the moving block is slidably arranged in the mounting tube and is threadedly connected to one end of the screw rod away from the lifting motor; one end of the connecting rod passes through the rectangular through groove on the mounting tube and is fixedly connected to the moving block, and the other end is fixedly connected to the crushing motor through a fixing ring; the lifting motor can drive the screw rod to rotate, so as to drive the moving block to move up and down in the mounting tube, thereby causing the crushing motor and the crushing cutter head to move up and down.

[0012] Preferably, the lifting assembly further comprises a fixing rod, one end of which is fixedly connected to the lower portion of the mounting tube, and the other end of which can clamp the extraction container via a fixing clamp.

[0013] Preferably, the connecting rod and the fixing rod are both telescopic rods.

[0014] Preferably, the flash extraction mechanism further includes a controller, the crushing motor and the lifting motor are both electrically connected to the controller, and the controller is used to adjust the rotation speed and height of the crushing cutter head.

[0015] Compared with the prior art, the utility model has achieved the following technical effects:

[0016] The utility model provides a flash continuous microwave extraction device, comprising a flash extraction mechanism, an extraction container and a microwave source. The flash extraction mechanism comprises a base, a lifting assembly and a crushing assembly. The microwave source is arranged on the extraction container. When in use, the material to be extracted and the solvent are placed in the extraction container, the lifting assembly is used to make the crushing cutter head be located at an appropriate position in the extraction container, the crushing cutter head is driven to rotate by a crushing motor to crush the material to be extracted in the extraction container, and at the same time, microwave extraction is performed by the microwave source, thereby realizing efficient dual extraction with the simultaneous action of flash extraction and microwave extraction, and the purity of the extracted effective components is relatively high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. 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 any creative work.

[0018] Figure 1 This is a schematic diagram of a flash continuous microwave extraction device provided in an embodiment of the present invention.

[0019] Figure 1 Middle: 1-extraction container, 2-microwave source, 3-base, 4-crushing motor, 5-crushing cutter head, 6-mounting tube, 7-connecting rod, 8-fixing rod, 9-fixing clamp, 10-controller, 11-control line, 12-power input line.

[0020] Figure 2 Schematic diagram of the existing continuous microwave extraction line.

[0021] Figure 2 Middle: 01-extraction section, 02-draining section, 03-feeding port, 04-extraction liquid outlet, 05-solvent inlet, 06-extraction line microwave source, 07-screw propeller, 08-blade hole, 09-presser, 010-slag outlet. DETAILED DESCRIPTION

[0022] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0023] The purpose of the utility model is to provide a flash continuous microwave extraction device to solve the problems existing in the prior art. By combining the flash extraction process with the microwave extraction process, the effective components of natural products can be efficiently extracted, and the extracted effective components are of high purity.

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] like Figure 1 As shown, this embodiment provides a flash continuous microwave extraction device, including a flash extraction mechanism, an extraction container 1 and a microwave source 2. The flash extraction mechanism includes a base 3, a lifting assembly and a crushing assembly. The extraction container 1 is arranged on the base 3. The extraction container 1 is used to hold the material to be extracted and the solvent. The lifting assembly is arranged on the base 3 near the extraction container 1; the crushing assembly includes a crushing motor 4 and a crushing cutter head 5. The crushing motor 4 is arranged on the lifting assembly, and the output end of the crushing motor 4 is arranged vertically downward and connected to the crushing cutter head 5. The lifting assembly can drive the crushing motor 4 and the crushing cutter head 5 to move up and down, and the crushing motor 4 can drive the crushing cutter head 5 to rotate to crush the material to be extracted in the extraction container 1; the microwave source 2 is arranged on the extraction container 1, and the microwave source 2 is used to perform microwave extraction on the material to be extracted in the extraction container 1.

[0026] It should be noted that flash extraction is a process used to break down plant soft and hard tissues. It relies on high-speed mechanical shear and ultra-dynamic molecular percolation to break down plant roots, stems, leaves, flowers, and fruits into fine particles within seconds at room temperature in the presence of a solvent. This allows the active ingredients to quickly reach equilibrium within and outside the tissue, where they are then extracted through filtration. Existing flash extractors retain the active ingredients of natural products, require minimal solvent, have a short extraction time, are highly efficient, and feature wear-resistant cutting tools, a compact structure, and are safe and reliable.

[0027] It should be noted that microwave-assisted extraction, also known as microwave extraction, is an extraction process that combines microwaves with traditional solvent extraction. The principle of microwave extraction is that high-frequency electromagnetic waves reach the internal vascular bundles and glandular cell systems of natural products. After the cells absorb the microwave energy, the internal temperature rises rapidly, causing the internal pressure of the cells to increase, leading to cell rupture, and the effective ingredients in the cells flow out freely and dissolve into the extraction medium. Existing continuous microwave extraction lines such as Figure 2 As shown, it includes an extraction section 01 and a draining section 02, wherein the feed end of the extraction section 01 is provided with a feed port 03 and an extract outlet 04, the discharge end of the extraction section 01 is provided with a solvent inlet 05, and a plurality of extraction line microwave sources 06 are provided at the bottom of the extraction section 01. A screw propeller 07 is also provided in the extraction section 01 and the draining section 02, and a blade hole 08 is provided on the screw propeller 07. The draining section 02 is inclined upward, and the discharge end of the draining section 02 is provided with a press 09 and a slag outlet 010. When in use, the powdered material and the solvent are mixed in a storage tank and pumped into the extraction section 01. When the material and the solvent flow through the extraction section 01, they are directly heated and extracted by microwaves, so that the effective ingredients are transferred, and the extraction is completed and sent to another storage tank. The microwave extraction process has the characteristics of simple equipment, wide applicability, high extraction efficiency, good reproducibility, time saving, solvent saving, low pollution, low overall production line cost and low operating cost. It is one of the commonly used methods for extracting active ingredients from natural products.

[0028] On this basis, the present device forms a simultaneous extraction process of flash extraction and microwave extraction by fixing the microwave source 2 on the extraction container 1 and setting the extraction container 1 in a flash extraction mechanism, thereby improving the extraction efficiency and the purity of the extracted effective ingredients. It has the advantages of scientific design, reasonable structure, high production efficiency, easy use and thorough extraction.

[0029] In this embodiment, the extraction container 1 has a double-layer shell structure, and the inner shell of the extraction container 1 is used to accommodate the material to be extracted and the solvent; the microwave source 2 is arranged between the inner shell and the outer shell of the extraction container 1, and the inner shell of the extraction container 1 can allow the microwaves emitted by the microwave source 2 to penetrate, and the outer shell of the extraction container 1 can block and reflect the microwaves emitted by the microwave source 2.

[0030] Furthermore, the microwave source 2 includes a plurality of microwave generators, and all the microwave generators are evenly arranged around the inner shell of the extraction container 1 .

[0031] In this embodiment, the inner shell of the extraction container 1 is a polytetrafluoroethylene shell; the outer shell of the extraction container 1 is a stainless steel shell; when in use, the microwaves emitted by the microwave generator located between the polytetrafluoroethylene shell and the stainless steel shell can penetrate the polytetrafluoroethylene shell to perform microwave extraction on the material therein, while the microwaves that do not enter the polytetrafluoroethylene shell are reflected by the stainless steel shell and then enter the polytetrafluoroethylene shell to be absorbed by the material, which not only improves the microwave energy absorption efficiency but also achieves the effect of preventing microwave leakage.

[0032] In this embodiment, the lifting assembly includes a mounting tube 6, a lifting motor, a screw, a moving block and a connecting rod 7. The mounting tube 6 is vertically fixed to the base 3, and a rectangular through-groove is provided on the side of the mounting tube 6 close to the extraction container 1, and the rectangular through-groove extends along the axial direction of the mounting tube 6; the lifting motor is arranged at the top of the mounting tube 6, and the output end of the lifting motor extends vertically downward into the mounting tube 6 and is connected to the screw; the moving block is slidably arranged in the mounting tube 6 and is threadedly connected to one end of the screw away from the lifting motor; one end of the connecting rod 7 passes through the rectangular through-groove on the mounting tube 6 and is fixedly connected to the moving block, and the other end It is fixedly connected to the crushing motor 4 through a fixed ring; the lifting motor can drive the screw to rotate, so as to drive the moving block to move up and down in the mounting tube 6, thereby causing the crushing motor 4 and the crushing cutter head 5 to move up and down; when in use, the crushing cutter head 5 is located at an appropriate position in the extraction container 1 through the lifting assembly, and the crushing cutter head 5 is driven to rotate by the crushing motor 4 to crush the natural product into fine particles within seconds. At the same time, by achieving the best combination of the three factors of high-speed stirring, vibration, and negative pressure filtration, the effective ingredients can quickly reach a balance inside and outside the tissue, and ultimately achieve the purpose of fully improving the extraction efficiency through subsequent filtration.

[0033] It should be noted that the crushing cutter head 5 can generate vibrations equivalent to 1 / 60 of ultrasonic waves during high-speed rotation. Under the action of this vibration, it plays a strong role in promoting the dissolution balance of chemical components inside and outside the particles of the crushed material.

[0034] It should be noted that the crushing cutter head 5 in this embodiment has a double-edged structure. During high-speed rotation, not only does the material shearing effect occur between the inner and outer blades, but also a vortex negative pressure is generated by the rotation of the inner blade and the fixation of the outer blade. Under the action of this negative pressure, molecular penetration occurs inside and outside the outer blade window, that is, the material molecules (extracted components) that have been fully exposed through the shearing surface are surrounded, dissociated, and replaced by solvent molecules under the action of negative pressure, and finally separate from the material to be extracted and enter the solvent, thereby achieving the purpose of extraction.

[0035] It should be noted that the design of the crushing head 5 should take into account that while the natural product reaches an appropriate particle size to facilitate the balance inside and outside the tissue, the particles are not too fine to affect downstream filtration. Generally, the crushed particle range is controlled to be 40 mesh to 60 mesh.

[0036] In this embodiment, the lifting assembly further includes a fixing rod 8 , one end of which is fixedly connected to the lower portion of the mounting tube 6 , and the other end of which can clamp the extraction container 1 via a fixing clamp 9 .

[0037] In this embodiment, the connecting rod 7 and the fixing rod 8 are both telescopic rods, which facilitate adjustment of the relative position of the crushing cutter head 5 and the extraction container 1 .

[0038] In this embodiment, the flash extraction mechanism also includes a controller 10, and the crushing motor 4 and the lifting motor are electrically connected to the controller 10. The controller 10 is used to adjust the speed and height of the crushing head 5; specifically, the controller 10 in this embodiment is electrically connected to the crushing motor 4 and the lifting motor through a control line 11, and is electrically connected to an external 220V power supply through a power input line 12. The controller 10 is also provided with conventional components such as a power switch, a speed adjustment button, an up button, a down button, and a voltmeter.

[0039] In summary, this device utilizes flash extraction technology and microwave extraction technology, combines shear, vacuum, penetration, fluid dynamics, electromagnetic microwave and other principles, and through the combination of the processes, produces crushing and microwave energy action on the extracted materials, thereby realizing efficient dual extraction with the simultaneous action of flash extraction and microwave extraction, maximally extracting the target substances in natural products, avoiding the decomposition and loss of effective ingredients, and minimizing the extraction of ineffective or even harmful components. It has the advantages of high extract purity, simple method, high efficiency and energy saving, wide application, low cost, etc., which not only improves the utilization rate of natural products, but also creates favorable conditions for the research and development of new drugs.

[0040] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A flash continuous microwave extraction device, characterized in that: The invention comprises a flash extraction mechanism, an extraction container and a microwave source, wherein the flash extraction mechanism comprises a base, a lifting assembly and a crushing assembly, wherein the extraction container is arranged on the base, the extraction container is used to hold the material to be extracted and a solvent, and the lifting assembly is arranged on the base near the extraction container; the crushing assembly comprises a crushing motor and a crushing cutter head, the crushing motor is arranged on the lifting assembly, and the output end of the crushing motor is arranged vertically downward and connected to the crushing cutter head, the lifting assembly can drive the crushing motor and the crushing cutter head to move up and down, and the crushing motor can drive the crushing cutter head to rotate to crush the material to be extracted in the extraction container; the microwave source is arranged on the extraction container, and the microwave source is used to perform microwave extraction on the material to be extracted in the extraction container; the microwave source and the crushing assembly operate synchronously; The extraction container has a double-layer shell structure, the inner shell of the extraction container is used to accommodate the material to be extracted and the solvent; the microwave source is arranged between the inner shell and the outer shell of the extraction container, and the inner shell of the extraction container can allow microwaves emitted by the microwave source to penetrate, and the outer shell of the extraction container can block and reflect the microwaves emitted by the microwave source.

2. The flash continuous microwave extraction device according to claim 1, characterized in that: The microwave source includes a plurality of microwave generators, and all of the microwave generators are evenly arranged around the inner shell of the extraction container.

3. The flash continuous microwave extraction device according to claim 1, characterized in that: The inner shell of the extraction container is a polytetrafluoroethylene shell; the outer shell of the extraction container is a stainless steel shell.

4. The flash continuous microwave extraction device according to claim 1, characterized in that: The lifting assembly includes a mounting tube, a lifting motor, a screw rod, a moving block and a connecting rod, the mounting tube is vertically fixed on the base, and a rectangular through slot is provided on the side of the mounting tube close to the extraction container, and the rectangular through slot extends along the axial direction of the mounting tube; the lifting motor is arranged at the top of the mounting tube, and the output end of the lifting motor extends vertically downward into the mounting tube and is connected to the screw rod, the moving block is slidably arranged in the mounting tube and is threadedly connected to one end of the screw rod away from the lifting motor; one end of the connecting rod passes through the rectangular through slot on the mounting tube and is fixedly connected to the moving block, and the other end is fixedly connected to the crushing motor through a fixing ring; the lifting motor can drive the screw rod to rotate, so as to drive the moving block to move up and down in the mounting tube, thereby causing the crushing motor and the crushing cutter head to move up and down.

5. The flash continuous microwave extraction device according to claim 4, characterized in that: The lifting assembly further comprises a fixing rod, one end of which is fixedly connected to the lower portion of the mounting tube, and the other end of which is capable of clamping the extraction container via a fixing clamp.

6. The flash continuous microwave extraction device according to claim 5, characterized in that: The connecting rod and the fixing rod are both telescopic rods.

7. The flash continuous microwave extraction device according to claim 4, characterized in that: The flash extraction mechanism further includes a controller, and the crushing motor and the lifting motor are both electrically connected to the controller, and the controller is used to adjust the rotation speed and height of the crushing cutter head.

Images