Low-temperature extraction device for bioactive components of tea leaves

Abstract

The invention discloses a tea bioactive component low-temperature extraction device which comprises a base, a mounting seat fixed on the right side of the base, an extraction tank fixed on the mounting seat, a cooling plate sleeved on the outer wall of the extraction tank, a water inlet pipeline fixed on the front side of the upper part of the extraction tank, and a feeding pipeline fixed on the left side of the upper part of the extraction tank, a discharge pipeline is fixed on the front side of the lower part of the extraction tank. The first spiral auger rotates to continuously convey mixed liquid at the bottom of the extraction tank to the first isolation cover along the isolation barrel, the mixed liquid flows out from the isolation net in the middle of the first isolation cover and then flows to the bottom of the extraction tank from the isolation net in the middle of the second isolation cover, and the mixed liquid is continuously in contact with tea materials on the isolation nets in the flowing process; the tea materials are continuously washed, the fusion efficiency is improved, the reciprocating lead screw rotates to drive the sliding frame, the first isolation hood, the isolation barrel and the second isolation hood to vertically ascend and descend in a reciprocating mode, and the tea materials on the first isolation hood and the second isolation hood are continuously mixed with the solvent during ascending and descending.

Description

Technical Field

[0001] The invention relates to the technical field of tea component extraction, in particular to a low-temperature extraction device for biologically active components of tea. Background Art

[0002] Traditional extraction of tea bioactive ingredients usually uses high temperature or organic solvent extraction methods, which may cause degradation or loss of some active ingredients. They also have problems such as high energy consumption, complex operation and great impact on the environment. Low-temperature extraction can avoid the degradation or loss of active ingredients that may be caused by traditional thermal dissolution processes. However, in the ultrasonic-assisted low-temperature extraction in the prior art, the propagation of ultrasound in liquid has certain attenuation and reflection phenomena, and the ultrasonic energy cannot be evenly transmitted to the tea leaves, and consistency cannot be maintained during the entire extraction process. The extraction device cannot thoroughly clean the tea residues after the extraction is completed. Therefore, it is necessary to provide a low-temperature extraction device for the biologically active components of tea leaves. Summary of the invention

[0003] The purpose of the present invention is to solve the problems in the prior art that ultrasonic waves propagate in liquids and there is a certain attenuation and reflection phenomenon, the ultrasonic energy cannot be evenly transmitted to the tea leaves, and consistency cannot be maintained during the entire extraction process, and the extraction device cannot thoroughly clean the tea residues after the extraction is completed. Therefore, a low-temperature extraction device for the biologically active components of tea leaves is proposed.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a base, a mounting seat is fixed on the right side of the base, an extraction tank is fixed on the mounting seat, a cooling plate is sleeved on the outer wall of the extraction tank, a water inlet pipe is fixed on the front side of the upper part of the extraction tank, a feed pipe is fixed on the left side of the upper part of the extraction tank, a discharge pipe is fixed on the front side of the lower part of the extraction tank, a first mounting frame is fixed on the right side of the bottom of the extraction tank, a rotatable sealing plate is provided on the first mounting frame, a second mounting frame is fixed on the right side of the middle part of the extraction tank, a rotatable first hydraulic rod is provided on the second mounting frame, the telescopic end of the first hydraulic rod is hinged to one end of the sealing plate, a drainage pipe is provided at the bottom of the sealing plate, a solenoid valve is provided on the drainage pipe, an ultrasonic oscillator is fixed symmetrically on the extraction tank, a first double-axis motor is fixed on the top of the extraction tank, a connecting shaft is nested and fixed at the power output end of the lower part of the first double-axis motor, a first spiral auger is nested and fixed on the connecting shaft, a reciprocating screw is nested and fixed at the power output end of the upper part of the first double-axis motor, a slidable sliding frame is provided on the reciprocating screw, and one end of the sliding frame is fixedly connected to the upper part of the first isolation cover.

[0005] Further preferably, the bottom of the first isolation cover is fixedly connected to an isolation cylinder, the bottom of the isolation cylinder is fixedly connected to a second isolation cover, the bottom of the extraction tank is in the shape of a flat-topped cone, the first isolation cover and the second isolation cover are both in the shape of a flat-topped cone, and the middle parts of the first isolation cover and the second isolation cover are isolation nets for passing the solvent and tea residue mixture, the first spiral auger is located in the middle of the isolation cylinder and the first spiral auger is close to the middle inner wall of the isolation cylinder, the top diameter of the second isolation cover is consistent with the diameter of the top of the flat-topped cone of the extraction tank, the bottom diameter of the second isolation cover is smaller than the diameter of the bottom of the flat-topped cone of the extraction tank, and the tea material is located between the outer wall of the second isolation cover and the inner wall of the flat-topped cone of the extraction tank.

[0006] Further preferably, a connecting frame is fixed on the top of the extraction tank, a placing tank is fixed on the right side of the connecting frame, a sealing screw cap is provided on the top of the placing tank, an input pipe is connected to the bottom of the placing tank, one end of the input pipe passes through and is introduced into the extraction tank, a connecting slot frame is fixed on the top of the isolation cylinder, a guide groove is opened on the top of the connecting slot frame, a rotatable rotating disk is provided on the right inner wall of the extraction tank, a discharge hole is opened on the right side of the rotating disk, a protruding column is provided on the right side of the rotating disk, and the protruding column passes through the guide groove on the connecting slot frame.

[0007] Further preferably, a plurality of guide frames are fixed in a ring shape with the extraction tank as the center at the bottom of the extraction tank, a slidable clamping block is provided on the guide frame, the front end of the clamping block is a slope, the rear end of the clamping block is connected to a connecting groove rod, the connecting groove rod has a guide groove, and a second hydraulic cylinder is fixed to the left side of the middle part of the extraction tank, the telescopic end of the second hydraulic cylinder is fixedly connected to a lower pressure ring, and the lower pressure ring passes through the guide groove on the connecting groove rod.

[0008] Further preferably, a guide shaft is nested and fixed on the connecting shaft, and a slidable connecting ring is provided on the guide shaft. The connecting ring is located below the sliding frame and contacts with the bottom of the sliding frame. The connecting ring is provided with a scraper distributed in a ring with the axis of the connecting shaft as the center of the circle, and the scraper is spiral and tightly attached to the inner wall of the first isolation cover.

[0009] Further preferably, an import frame is fixed on the left side of the base, a feeding pipe is fixed at the bottom of the import frame, a second double-axis motor is fixed at one end of the feeding pipe, the right side of the feeding pipe is connected to the feed pipe, and a second spiral auger is nested and fixed at the power output end on the top of the second double-axis motor.

[0010] Further preferably, a universal joint is nested and fixed at the power output end at the bottom of the second dual-axis motor, a fixed frame is fixed to the left side of the import frame, a rotatable universal joint is provided on the right side of the fixed frame, the two universal joints are connected to each other, a transmission assembly is provided on the left side of the fixed frame, and rotatable rolling rollers are symmetrically provided on the import frame front and back, the transmission assembly includes two transmission wheels and belts, transmission wheels are nested and fixed at one end of the rolling rollers on the left and rear sides of the fixed frame, a belt is wound between the two transmission wheels, a transmission gear is nested and fixed on the left side of the rolling roller, the two transmission gears are meshed with each other, and the two rolling rollers rotate in opposite directions.

[0011] Further preferably, the shape of the sealing plate matches the shape of the bottom of the extraction tank, and a sealing ring is provided on the sealing plate.

[0012] Further preferably, the lower end of the drainage pipe is a retractable hose.

[0013] The beneficial effects of the present invention are as follows: the rotation of the first spiral auger can continuously transport the mixed liquid at the bottom of the extraction tank along the isolation cylinder to the first isolation cover, the mixed liquid flows out from the isolation net in the middle of the first isolation cover, and then flows to the bottom of the extraction tank from the isolation net in the middle of the second isolation cover, and continuously contacts the tea material on the isolation net during the flow process, continuously flushes the tea material, and accelerates the fusion efficiency, and the reciprocating screw rod rotates to drive the sliding frame, the first isolation cover, the isolation cylinder and the second isolation cover to perform reciprocating vertical lifting, so that the tea material on the first isolation cover and the second isolation cover is continuously mixed with the solvent during the lifting, and at the same time The connecting slot frame is lifted and lowered together with the first isolation cover. When the connecting slot frame is lowered, the guide slot on it contacts the raised column on the right side of the rotating disk, driving the rotating disk to rotate 90 degrees. After the rotation, the discharge hole on the rotating disk coincides with the pipe mouth of the input pipeline, so that the solvent inside the placement tank flows into the extraction tank along the input pipeline, and the solvent is added evenly in small amounts and multiple times, so that the mixing effect is better, the consistency in the extraction process is stronger, the mixing effect of the tea material is enhanced, the attenuation of ultrasonic energy is reduced, and the mixed liquid can be evenly contacted with the ultrasonic oscillator, so that the ultrasonic energy can be evenly transmitted to the mixed liquid; Since the top diameter of the second isolation cover is consistent with the diameter of the top of the flat-top cone of the extraction tank, and the bottom diameter of the second isolation cover is smaller than the diameter of the bottom of the flat-top cone of the extraction tank, the tea material is located between the outer wall of the second isolation cover and the inner wall of the flat-top cone at the bottom of the extraction tank. Therefore, when rising and falling, the second isolation cover will continuously squeeze the tea material at the bottom of the extraction tank, promote the tea material to further release active ingredients, and the squeezed mixed liquid flows out from the isolation net in the middle of the second isolation cover. During the mixing process, under the action of the isolation net in the middle of the first isolation cover and the second isolation cover, the tea material and the mixed liquid are always separated, which is convenient for the discharge of the extract and tea residues. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a schematic diagram of the first overall structure of the present invention; Figure 2 It is a second overall structural schematic diagram of the present invention; Figure 3 It is a structural schematic diagram of the extraction tank of the present invention; Figure 4 It is a structural plan view of the isolation cylinder of the present invention; Figure 5 It is a structural schematic diagram of the isolation cylinder of the present invention; Figure 6 It is a structural schematic diagram of the rotating disk of the present invention; Figure 7 It is a structural schematic diagram of the lower pressure ring of the present invention; Figure 8 It is a schematic structural diagram of the second spiral auger of the present invention; Fig. 9 It is a schematic structural diagram of the rolling roller of the present invention.

[0015] In the figure: base 1, mounting seat 2, extraction tank 3, cooling plate 301, water inlet pipe 302, feed pipe 303, discharge pipe 304, first mounting frame 4, sealing plate 5, second mounting frame 6, first hydraulic rod 7, discharge pipe 8, solenoid valve 9, ultrasonic oscillator 10, first dual-axis motor 11, connecting shaft 12, first spiral auger 13, reciprocating screw rod 14, sliding frame 15, isolation cylinder 16, isolation cylinder 1601, second isolation cover 1602, connecting frame 17 , placement tank 18, sealing screw cap 1801, input pipe 19, connecting slot frame 20, rotating disk 21, discharge hole 2101, guide frame 22, clamping block 23, connecting slot rod 24, second hydraulic cylinder 25, lower pressure ring 26, guide shaft 27, connecting ring 28, scraper 2801, import frame 29, feeding pipe 30, second double-axis motor 31, second spiral auger 32, universal joint 33, fixed frame 34, transmission assembly 35, transmission gear 36, rolling roller 37. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] Reference Figures 1 to 9A low-temperature extraction device for biologically active components of tea leaves comprises a base 1, a mounting seat 2 is fixed on the right side of the base 1, an extraction tank 3 is fixed on the mounting seat 2, a cooling plate 301 is sleeved on the outer wall of the extraction tank 3, a water inlet pipe 302 is fixed on the front side of the upper part of the extraction tank 3, a feed pipe 303 is fixed on the left side of the upper part of the extraction tank 3, a discharge pipe 304 is fixed on the front side of the lower part of the extraction tank 3, a first mounting frame 4 is fixed on the right side of the bottom of the extraction tank 3, a rotatable sealing plate 5 is arranged on the first mounting frame 4, a second mounting frame 6 is fixed on the right side of the middle part of the extraction tank 3, a rotatable first hydraulic rod 7 is arranged on the second mounting frame 6, and the first hydraulic rod 7 is fixed on the second mounting frame 6. The telescopic end of the pressure rod 7 is hinged to one end of the sealing plate 5, a drainage pipe 8 is provided at the bottom of the sealing plate 5, and a solenoid valve 9 is provided on the drainage pipe 8. An ultrasonic oscillator 10 is symmetrically fixed on the extraction tank 3, and a first double-axis motor 11 is fixed on the top of the extraction tank 3. A connecting shaft 12 is nested and fixed at the power output end of the lower part of the first double-axis motor 11, and a first spiral auger 13 is nested and fixed on the connecting shaft 12. A reciprocating screw rod 14 is nested and fixed at the power output end of the upper part of the first double-axis motor 11, and a slidable sliding frame 15 is provided on the reciprocating screw rod 14, and one end of the sliding frame 15 is fixedly connected to the upper part of the first isolation cover 16.

[0018] Preferably, the bottom of the first isolation cover 16 is fixedly connected to an isolation cylinder 1601, the bottom of the isolation cylinder 1601 is fixedly connected to a second isolation cover 1602, the bottom of the extraction tank 3 is in the shape of a flat-topped cone, the first isolation cover 16 and the second isolation cover 1602 are both in the shape of a flat-topped cone, and the middle of the first isolation cover 16 and the second isolation cover 1602 are isolation nets for the passage of the solvent and the tea residue mixture, the first spiral auger 13 is located in the middle of the isolation cylinder 16 and the first spiral auger 13 is close to the middle inner wall of the isolation cylinder 1601, the top diameter of the second isolation cover 1602 is consistent with the diameter of the top of the flat-topped cone of the extraction tank 3, the bottom diameter of the second isolation cover 1602 is smaller than the diameter of the bottom of the flat-topped cone of the extraction tank 3, and the tea material is located between the outer wall of the second isolation cover 1602 and the inner wall of the flat-topped cone of the extraction tank 3; During the specific implementation, the first spiral auger 13 at the power output end at the bottom of the first double-axis motor 11 rotates clockwise to mix the tea material and the solvent. The first spiral auger 13 is located in the middle of the isolation cylinder 1601. The rotation of the first spiral auger 13 can continuously transport the mixed liquid at the bottom of the extraction tank 3 along the isolation cylinder 1601 to the isolation net in the middle of the first isolation cover 16, so as to realize the internal circulation of the mixed liquid up and down. The mixed liquid flows out from the isolation net in the middle of the first isolation cover 16 and the second isolation cover 1602 and continuously contacts the tea material on the isolation net, continuously flushes the tea material, and accelerates the efficiency of fusion. The power output section end at the top of the first double-axis motor 11 drives the reciprocating screw rod 14 to rotate. The reciprocating screw rod 14 rotates to drive the sliding frame 15, the first isolation cover 16, the isolation cylinder 1601 and the second isolation cover 1602 to perform reciprocating vertical lifting, so that the liquid falling on the first isolation cover 1 6 The tea material on the isolation net in the middle of the second isolation cover 1602 is continuously mixed with the solvent, which enhances the mixing effect of the tea material and reduces the attenuation of ultrasonic energy. The mixed liquid can be evenly contacted with the ultrasonic oscillator 10, so that the ultrasonic energy can be evenly transmitted to the mixed liquid. Since the top diameter of the second isolation cover 1602 is consistent with the diameter of the top of the flat-topped cone of the extraction tank 3, and the bottom diameter of the second isolation cover 1602 is smaller than the diameter of the bottom of the flat-topped cone at the bottom of the extraction tank 3, the tea material is located between the outer wall of the second isolation cover 1602 and the inner wall of the flat-topped cone of the extraction tank 3. Therefore, when lifting, the second isolation cover 1602 will continuously squeeze the tea material at the bottom of the extraction tank 3 to promote the tea material to further release active ingredients. In this process, under the action of the isolation net in the middle of the first isolation cover 16 and the second isolation cover 1602, the tea material and the mixed liquid are always separated.

[0019] Preferably, a connecting frame 17 is fixed on the top of the extraction tank 3, a placing tank 18 is fixed on the right side of the connecting frame 17, a sealing screw cap 1801 is provided on the top of the placing tank 18, an input pipe 19 is connected to the bottom of the placing tank 18, one end of the input pipe 19 passes through and enters the extraction tank 3, a connecting slot frame 20 is fixed on the top of the isolation cylinder 16, a guide groove is opened on the top of the connecting slot frame 20, a rotatable rotating disk 21 is provided on the inner wall of the right part of the extraction tank 3, a discharge hole 2101 is opened on the right side of the rotating disk 21, a protruding column is provided on the right side of the rotating disk 21, and the protruding column passes through the guide groove on the connecting slot frame 20; During specific implementation, when the isolation cylinder 16 is raised or lowered, the connecting slot frame 20 is raised or lowered together. A rotatable rotating disk 21 is provided on the inner wall of the right part of the extraction tank 3. A discharge hole 2101 is provided on the right side of the rotating disk 21. When the connecting slot frame 20 is raised or lowered, the guide groove on the connecting slot frame 20 contacts the raised column on the right side of the rotating disk 21, driving the rotating disk 21 to rotate 90 degrees. After rotation, the discharge hole 2101 on the rotating disk 21 coincides with the pipe mouth of the input pipe 19, so that the solvent inside the placement tank 18 flows into the extraction tank 3 along the input pipe 19 and is mixed with the tea material. The solvent can be added evenly in small amounts and multiple times, so that the mixing effect is better and the consistency during the extraction process is stronger.

[0020] Preferably, a plurality of guide frames 22 are fixed in a ring shape with the extraction tank 3 as the center at the bottom of the extraction tank 3, a slidable clamping block 23 is provided on the guide frame 22, the front end of the clamping block 23 is an inclined surface, the rear end of the clamping block 23 is connected to a connecting slot rod 24, and a guide slot is provided on the connecting slot rod 24, a second hydraulic cylinder 25 is fixed to the left side of the middle of the extraction tank 3, and a lower pressure ring 26 is fixedly connected to the telescopic end of the second hydraulic cylinder 25, and the lower pressure ring 26 passes through the guide slot provided on the connecting slot rod 24; During specific implementation, before extraction, the first hydraulic rod 7 is started for resetting, the telescopic end of the first hydraulic rod 7 is hinged to one end of the sealing plate 5, the sealing plate 5 rotates to seal the bottom of the extraction tank 3, and the second hydraulic cylinder 25 is started. The telescopic end of the second hydraulic cylinder 25 is fixed with a lower pressure ring 26, and the lower pressure ring 26 passes through the guide groove opened on the connecting groove rod 24. When the lower pressure ring 26 descends, it contacts the guide groove on the connecting groove rod 24, driving the clamping block 23 to slide along the guide frame 22 toward the center of the sealing plate 5. The front end of the clamping block 23 is an inclined surface, which contacts the sealing plate 5 during the sliding process to lock the sealing plate 5. A sealing ring is provided on the sealing plate 5 to enhance the sealing of the extraction tank 3.

[0021] Preferably, a guide shaft 27 is nested and fixed on the connecting shaft 12, and a slidable connecting ring 28 is provided on the guiding shaft 27. The connecting ring 28 is located below the sliding frame 15 and contacts the bottom of the sliding frame 15. The connecting ring 28 is provided with a scraper 2801 distributed in an annular shape with the axis of the connecting shaft 12 as the center. The scraper 2801 is spiral and closely adheres to the inner wall of the first isolation cover 1601. During specific implementation, when the scraper 2801 rotates clockwise, the tea material continuously moves along the isolation net in the middle of the first isolation cover 16, which can prevent the tea material from blocking the isolation net in the middle of the first isolation cover 16 and affecting the mixing efficiency. When the scraper 2801 rotates counterclockwise, the tea material attached to the first isolation cover 16 can be slid downward along the first isolation cover 16 and the isolation cylinder 1601 to the bottom of the extraction tank 3.

[0022] Preferably, an introduction frame 29 is fixed on the left side of the base 1, a feeding pipe 30 is fixed at the bottom of the introduction frame 29, a second double-axis motor 31 is fixed at one end of the feeding pipe 30, the right side of the feeding pipe 30 is connected to the feed pipe 303, and a second spiral auger 32 is nested and fixed at the power output end of the top of the second double-axis motor 31; During specific implementation, the tea material to be processed is put into the introduction frame 29, the material enters the feeding pipe 30 along the introduction frame 29, and the second double-axis motor 31 is started. The power output end at the top of the second double-axis motor 31 drives the second spiral auger 32 to rotate in the feeding pipe 30 to transport the tea material to be processed from the bottom. The right side of the feeding pipe 30 is connected to the feeding pipe 303, and the tea material to be processed enters the interior of the extraction tank 3 through the feeding pipe 303, so that the tea material is evenly transported.

[0023] Preferably, a universal joint 33 is nested and fixed at the power output end at the bottom of the second dual-axis motor 31, a fixed frame 34 is fixed on the left side of the introduction frame 29, a rotatable universal joint 33 is provided on the right side of the fixed frame 34, the two universal joints 33 are connected to each other, a transmission assembly 35 is provided on the left side of the fixed frame 34, and a rotatable rolling roller 37 is symmetrically provided on the front and rear sides of the introduction frame 29, the transmission assembly 35 includes two transmission wheels and a belt, a transmission wheel is nested and fixed at one end of the left side and rear side rolling roller 37 of the fixed frame 34, a belt is wound between the two transmission wheels, a transmission gear 36 is nested and fixed on the left side of the rolling roller 37, the two transmission gears 36 are meshed with each other, and the two rolling rollers 37 rotate in opposite directions; During specific implementation, the power output end at the bottom of the second dual-axis motor 31 drives the universal joint 33 on the fixed frame 34 to rotate, and the transmission gear 36 rotates under the action of the transmission assembly 35, so that the rolling roller 37 can achieve counter-rotation, and the tea material entering the introduction frame 29 is rolled to prevent the tea material from piling up and agglomerating, so that the feed is looser and mixed with the solvent faster.

[0024] The shape of the sealing plate 5 matches the shape of the bottom of the extraction tank 3 , and a sealing ring is provided on the sealing plate 5 .

[0025] Wherein, the lower end of the drainage pipe 8 is a retractable hose.

[0026] When the present invention is used, the first hydraulic rod 7 is started to reset, the telescopic end of the first hydraulic rod 7 is hinged with one end of the sealing plate 5, the sealing plate 5 rotates to seal the bottom of the extraction tank 3, and the second hydraulic cylinder 25 is started. The telescopic end of the second hydraulic cylinder 25 is fixed with a lower pressure ring 26, and the lower pressure ring 26 passes through the guide groove provided on the connecting groove rod 24. When the lower pressure ring 26 descends, it contacts with the guide groove on the connecting groove rod 24, driving the clamping block 23 to slide along the guide frame 22 toward the center of the sealing plate 5. The front end of the clamping block 23 is an inclined surface, which contacts with the sealing plate 5 during the sliding process to lock the sealing plate 5. A sealing ring is provided on the sealing plate 5 to enhance the sealing performance of the extraction tank 3. The tea material to be processed is put into the introduction frame 29, and the material enters the feeding pipe 3 along the introduction frame 29. 0, start the second double-axis motor 31, the power output end at the top of the second double-axis motor 31 drives the second spiral auger 32 to rotate in the feeding pipe 30 to transport the tea material to be processed from the bottom, the right side of the feeding pipe 30 is connected with the feeding pipe 303, the tea material to be processed enters the interior of the extraction tank 3 through the feeding pipe 303, and the tea material is evenly transported. During the transportation of the tea material to be processed, the power output end at the bottom of the second double-axis motor 31 drives the universal joint 33 on the fixed frame 34 to rotate, and the transmission gear 36 rotates under the action of the transmission assembly 35, so that the rolling roller 37 can realize counter-rotation, and the tea material entering the introduction frame 29 is rolled to prevent the tea material from piling up and agglomerating, so that the feed is looser and mixed with the solvent faster; When extracting, a mixed solvent is generally used for extraction. A mixture of multiple solvents can improve the extraction efficiency or expand the extraction range. Commonly used solvents include a mixed solvent of water and ethanol. After the tea material to be treated enters the extraction tank 3, the cooling plate 301 is started to cool the extraction tank 3. The water inlet pipe 302 is connected to the external pipe to start inputting an appropriate amount of water. The ultrasonic oscillator 10 is started to break the cell structure of the tea leaves through ultrasonic oscillation to promote the release and extraction of active ingredients in the tea leaves. The tea material to be treated and the water solvent fall on the first isolation cover 16 and slide along the isolation cylinder 1601 and the second isolation cover 1602 to the bottom of the extraction tank 3. The first dual-axis motor 11 is started, and the power output end at the bottom of the first dual-axis motor 11 drives the connecting shaft 12 and the first The spiral auger 13 rotates clockwise to mix the tea material and the solvent. The first spiral auger 13 is located in the middle of the isolation cylinder 1601. The rotation of the first spiral auger 13 can continuously transport the mixed liquid at the bottom of the extraction tank 3 along the isolation cylinder 1601 to the isolation net in the middle of the first isolation cover 16, so as to realize the internal circulation of the mixed liquid up and down. The mixed liquid flows out from the isolation net in the middle of the first isolation cover 16 and the second isolation cover 1602 and continuously contacts the tea material on the isolation net, continuously flushes the tea material, and accelerates the efficiency of fusion. The power output section end at the top of the first dual-axis motor 11 drives the reciprocating screw rod 14 to rotate, and the reciprocating screw rod 14 rotates to drive the sliding frame 15, the first isolation cover 16, the isolation cylinder 1601 and the second isolation cover 1602 to perform reciprocating vertical lifting, so that The tea material falling on the isolation net in the middle of the first isolation cover 1602 and the second isolation cover 1602 is continuously mixed with the solvent, thereby enhancing the mixing effect of the tea material and reducing the attenuation of ultrasonic energy. Under continuous mixing and flushing, the mixed liquid can be evenly contacted with the ultrasonic oscillator 10, so that the ultrasonic energy can be evenly transmitted to the mixed liquid. Since the top diameter of the second isolation cover 1602 is consistent with the top diameter of the flat-topped cone of the extraction tank 3, and the bottom diameter of the second isolation cover 1602 is smaller than the bottom diameter of the flat-topped cone at the bottom of the extraction tank 3, the tea material is located between the outer wall of the second isolation cover 1602 and the inner wall of the flat-topped cone of the extraction tank 3, so the second isolation cover 1602 will continuously squeeze the tea material at the bottom of the extraction tank 3 when lifting and lowering, promoting the tea material. The active ingredients are further released, and in this process, under the action of the isolation net in the middle of the first isolation cover 16 and the second isolation cover 1602, the tea material and the mixed liquid are always separated. When the isolation cylinder 16 is raised or lowered, the connecting slot frame 20 is raised or lowered together. A rotatable rotating disk 21 is provided on the inner wall of the right part of the extraction tank 3. A discharge hole 2101 is provided on the right side of the rotating disk 21. When the connecting slot frame 20 is raised or lowered, the guide groove on the connecting slot frame 20 contacts the raised column on the right side of the rotating disk 21, driving the rotating disk 21 to rotate 90 degrees. After the rotation, the discharge hole 2101 on the rotating disk 21 coincides with the pipe mouth of the input pipe 19, so that the solvent inside the placement tank 18 flows into the extraction tank 3 along the input pipe 19 and mixes with the tea material. The solvent can be added evenly in small amounts and multiple times.The mixing effect is better and the consistency in the extraction process is stronger. A guide shaft 27 is fixed on the connecting shaft 12. A slidable connecting ring 28 is provided on the guiding shaft 27. The connecting ring 28 contacts the bottom of the sliding frame 15. The scraper 2801 is spiral and closely attached to the inner wall of the first isolation cover 1601. When the first isolation cover 16 is lifted or lowered, the connecting ring 28 is lifted or lowered along the guiding shaft 27. When the connecting shaft 12 rotates clockwise, the scraper 2801 rotates together. When the scraper 2801 rotates, the tea material continuously moves along the isolation net in the middle of the first isolation cover 16, which can prevent the tea material from blocking the isolation net in the middle of the first isolation cover 16 and affecting the mixing efficiency. After the extraction is completed, the discharge pipe 304 is connected to the external pipe. When the extract in the extraction tank 3 is discharged, the tea material attached to the first isolation cover 16 slides downward along the first isolation cover 16 and the isolation cylinder 1601 to the bottom of the extraction tank 3 under the cooperation of the counterclockwise rotation of the first spiral auger 13 and the scraper 2801 and the outflow of the extract, so that the remaining tea material gathers on the top of the sealing plate 5. After the extract is discharged, the solenoid valve 9 is opened. After standing for a period of time, the mixed liquid that has not flowed out of the remaining tea material is discharged along the discharge pipe 8. The lower end of the discharge pipe 8 is a retractable hose. After being connected to the external pipe, the remaining mixed liquid in the tea material is completely discharged. The first hydraulic rod 7 is started to reset. The retractable end of the first hydraulic rod 7 is hinged to one end of the sealing plate 5. The sealing plate 5 rotates and no longer seals the bottom of the extraction tank 3. The remaining tea material is discharged from the bottom of the extraction tank 3, and the extraction is completed.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A low-temperature extraction device for biologically active components of tea leaves, comprising a base (1), a mounting base (2) fixed on the right side of the base (1), an extraction tank (3) fixed on the mounting base (2), a cooling plate (301) sleeved on the outer wall of the extraction tank (3), a water inlet pipe (302) fixed on the front side of the upper part of the extraction tank (3), a feed pipe (303) fixed on the left side of the upper part of the extraction tank (3), a discharge pipe (304) fixed on the front side of the lower part of the extraction tank (3), a first mounting frame (4) fixed on the right side of the bottom of the extraction tank (3), a rotatable sealing plate (5) provided on the first mounting frame (4), a second mounting frame (6) fixed on the right side of the middle part of the extraction tank (3), a rotatable first hydraulic rod (7) provided on the second mounting frame (6), the telescopic end of the first hydraulic rod (7) being hinged to one end of the sealing plate (5), a drainage pipe (8) provided on the bottom of the sealing plate (5), a solenoid valve (9) provided on the drainage pipe (8), an ultrasonic oscillator (10) symmetrically fixed on the extraction tank (3), characterized in that: A first double-shaft motor (11) is fixed on the top of the extraction tank (3); a connecting shaft (12) is nested and fixed on the power output end of the lower part of the first double-shaft motor (11); a first spiral auger (13) is nested and fixed on the connecting shaft (12); a reciprocating screw rod (14) is nested and fixed on the power output end of the upper part of the first double-shaft motor (11); a slidable sliding frame (15) is provided on the reciprocating screw rod (14); one end of the sliding frame (15) is fixedly connected to the upper part of the first isolation cover (16).

2. The low-temperature extraction device for biologically active components of tea leaves according to claim 1, characterized in that: The bottom of the first isolation cover (16) is fixedly connected to an isolation cylinder (1601), and the bottom of the isolation cylinder (1601) is fixedly connected to a second isolation cover (1602); the bottom of the extraction tank (3) is in the shape of a flat-topped cone; the first isolation cover (16) and the second isolation cover (1602) are both in the shape of a flat-topped cone; and the middle of the first isolation cover (16) and the second isolation cover (1602) are isolation nets for allowing a mixture of solvent and tea residue to pass through; the first spiral auger (13) is located in the middle of the isolation cylinder (16) and the first spiral auger (13) is closely attached to the middle inner wall of the isolation cylinder (1601); the top diameter of the second isolation cover (1602) is consistent with the top diameter of the flat-topped cone of the extraction tank (3); the bottom diameter of the second isolation cover (1602) is smaller than the bottom diameter of the flat-topped cone of the extraction tank (3); and the tea material is located between the outer wall of the second isolation cover (1602) and the inner wall of the flat-topped cone of the extraction tank (3).

3. The low-temperature extraction device for biologically active components of tea leaves according to claim 2, characterized in that: A connecting frame (17) is fixed on the top of the extraction tank (3), a placing tank (18) is fixed on the right side of the connecting frame (17), a sealing screw cap (1801) is provided on the top of the placing tank (18), an input pipe (19) is connected to the bottom of the placing tank (18), one end of the input pipe (19) passes through and enters the extraction tank (3), a connecting slot frame (20) is fixed on the top of the isolation cylinder (16), a guide slot is provided on the top of the connecting slot frame (20), a rotatable rotating disk (21) is provided on the inner wall of the right part of the extraction tank (3), a discharge hole (2101) is provided on the right side of the rotating disk (21), and a protruding column is provided on the right side of the rotating disk (21), and the protruding column passes through the guide slot on the connecting slot frame (20).

4. The low-temperature extraction device for biologically active components of tea leaves according to claim 1, characterized in that: A plurality of guide frames (22) are fixed in an annular shape at the bottom of the extraction tank (3) with the extraction tank (3) as the center of the circle. A slidable clamping block (23) is provided on the guide frame (22). The front end of the clamping block (23) is an inclined surface. The rear end of the clamping block (23) is connected to a connecting groove rod (24). The connecting groove rod (24) is provided with a guide groove. A second hydraulic cylinder (25) is fixed to the left side of the middle of the extraction tank (3). The telescopic end of the second hydraulic cylinder (25) is fixedly connected to a lower pressure ring (26). The lower pressure ring (26) passes through the guide groove provided on the connecting groove rod (24).

5. The low-temperature extraction device for biologically active components of tea leaves according to claim 2, characterized in that: A guide shaft (27) is nested and fixed on the connecting shaft (12), and a slidable connecting ring (28) is provided on the guiding shaft (27). The connecting ring (28) is located below the sliding frame (15) and is in contact with the bottom of the sliding frame (15). The connecting ring (28) is provided with a scraper (2801) distributed in an annular shape with the axis of the connecting shaft (12) as the center of the circle, and the scraper (2801) is spiral and closely attached to the inner wall of the first isolation cover (1601).

6. The low-temperature extraction device for biologically active components of tea leaves according to claim 1, characterized in that: An introduction frame (29) is fixed on the left side of the base (1), a feeding pipe (30) is fixed on the bottom of the introduction frame (29), a second double-axis motor (31) is fixed to one end of the feeding pipe (30), the right side of the feeding pipe (30) is connected to the feed pipe (303), and a second spiral auger (32) is nested and fixed at the power output end of the top of the second double-axis motor (31).

7. The low-temperature extraction device for biologically active components of tea leaves according to claim 6, characterized in that: A universal joint (33) is embedded and fixed at the power output end at the bottom of the second dual-axis motor (31), a fixed frame (34) is fixed on the left side of the introduction frame (29), a rotatable universal joint (33) is provided on the right side of the fixed frame (34), the two universal joints (33) are connected to each other, a transmission assembly (35) is provided on the left side of the fixed frame (34), and a rotatable rolling roller (37) is symmetrically provided on the introduction frame (29) in the front and rear directions, the transmission assembly (35) includes two transmission wheels and a belt, a transmission wheel is embedded and fixed at one end of the rolling roller (37) on the left side and the rear side of the fixed frame (34), a belt is wound between the two transmission wheels, a transmission gear (36) is embedded and fixed on the left side of the rolling roller (37), the two transmission gears (36) are meshed with each other, and the two rolling rollers (37) rotate in opposite directions.

8. The low-temperature extraction device for biologically active components of tea leaves according to claim 1, characterized in that: The shape of the sealing plate (5) matches the shape of the bottom of the extraction tank (3), and a sealing ring is provided on the sealing plate (5).

9. The low-temperature extraction device for biologically active components of tea leaves according to claim 1, characterized in that: The lower end of the drainage pipe (8) is a retractable hose.

Images