Extraction equipment and extraction method of vegetable extract

Abstract

The invention discloses extraction equipment and an extraction method of a vegetable extract, and relates to the technical field of extract concentration. The extraction tank comprises a main tank body which is a cuboid; a feed port is formed in the upper end of the extraction tank, a discharge port and a liquid outlet are formed in the lower end of the extraction tank, and a heating assembly is mounted in the extraction tank; side pressure composition plates which are symmetrically distributed are mounted at the bottom of the bearing plate, and filter screens are mounted on the side pressure composition plates; the bottom of the side pressure composition plate is rotationally connected with the bottom of the extraction tank; an extension column is mounted on the side pressure composition plate and extends out of the extraction tank, and a steering part is mounted outside the extension column; a circulation pipeline; the end part of the circulating pipeline is communicated with the liquid outlet of the extraction tank, and the other end of the circulating pipeline is pumped back to the feeding hole by mounting the circulating pump; a condenser; a liquid storage tank; a separator; a double-effect concentrator; a finished product tank; the technical problems that internal components are easily damaged by high-speed rotating crushing, a large amount of raw material juice cannot be squeezed out, and the concentration of single extraction cannot be increased are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of extract concentration, and in particular to an extraction device and an extraction method for vegetable extract. Background Art

[0002] Vegetable extract concentration technology is the process of separating and enriching active ingredients from vegetables through physical, chemical or biological methods. Its core value lies in maximizing the retention of natural nutrients and bioactive substances.

[0003] Common extracts include: vitamins A to E, beta-carotene, cellulose and other nutrients.

[0004] Existing reference: CN200810214381.8 Preparation method of fruit or vegetable extract and extract prepared by the method, which is extracted by enzymatic hydrolysis, centrifugation, EDAE chromatography and other processes. This method is conventional enzymatic hydrolysis assisted processing, followed by centrifugation and chromatography extraction.

[0005] Other methods, such as reflux extraction, involve a tank, where conventional extraction involves dissolving and heating a solvent to produce an extract. A stirring mechanism is typically not included, and the solvent is heated before the extract is pumped back and forth to increase its concentration.

[0006] First, there is a lack of stirring and squeezing of vegetable raw materials, especially the squeezing function. High-speed rotation and crushing easily destroy internal components, and it is impossible to squeeze out a large amount of raw juice to increase the concentration of a single extraction. In order to achieve the concentration standard, a large amount of energy is required, which wastes energy and solvents. Summary of the Invention

[0007] The present invention provides an extraction device and an extraction method for vegetable extracts to solve the technical problems that high-speed rotation crushing easily destroys internal components and cannot squeeze out a large amount of raw material juice to improve the concentration of a single extraction.

[0008] The present invention specifically includes an extraction device for vegetable extracts, comprising:

[0009] The extraction tank includes a main tank body, which is a rectangular parallelepiped; a stirring main rod is installed in the main tank body, and a stirring low-speed motor is installed on the top; a supporting plate is installed at the bottom of the stirring main rod, and the supporting plate is fixed to the inner wall of the main tank body; the stirring main rod and the supporting plate rotate relative to each other; a downward-bent broken line stirring blade is installed on the stirring main rod; a feed port is provided at the upper end of the extraction tank, and a discharge port and a liquid outlet are provided at the lower end, and a heating component is installed inside; symmetrically distributed side pressure combination plates are installed at the bottom of the supporting plate, and a filter is installed on the side pressure combination plate; the bottom of the side pressure combination plate is rotatably connected to the extraction tank; an extension column is installed on the side pressure combination plate, and the extension column extends outside the extraction tank, and a steering member is installed outside the extension column, and the steering member is used to drive the side pressure combination plate to rotate and squeeze the vegetable raw materials; the extraction tank is used to heat the raw materials, and the heating temperature does not exceed the limit temperature that destroys the corresponding extract, for example, the vitamin extraction temperature is about 40-100°C.

[0010] A circulation pipeline is provided with a retention body in the middle of the circulation pipeline, and a concentration detector is installed in the retention body; the end of the circulation pipeline is connected to the liquid outlet of the extraction tank, and the other end is pumped back to the feed port through the installation of a circulation pump;

[0011] The condenser is provided with a steam circulation inlet and a steam circulation outlet on the top tank body of the extraction tank, and is connected to the condenser through two sets of high-temperature pipes to condense the steam on the top of the extraction tank back to the extraction tank;

[0012] The liquid storage tank, the extraction tank and the liquid storage tank are switched and connected via a circulation pipeline;

[0013] A separator, which separates the solid and liquid of the concentrate;

[0014] Double-effect concentrator, the outlet of the liquid storage tank is pumped to the feed port of the double-effect concentrator through the installation of a delivery pump;

[0015] The finished product tank and the liquid outlet of the double-effect concentrator are connected to the finished product tank by installing a delivery pipe and a delivery pump.

[0016] In a further technical solution, the supporting plate includes a circular portion and two side rods, one end of the two side rods is fixedly connected to two sides of the circular portion, and the other end is fixedly connected to the inner wall of the extraction tank;

[0017] The circular portion is connected to the stirring main rod by installing a connecting bearing; the bottom height of the folded stirring blade is not higher than the height of the supporting plate;

[0018] A tank cover is provided on the top of the extraction tank, and a steam circulation inlet, a steam circulation outlet, a feed port and a liquid adding port are respectively provided on the tank cover; a liquid adding pipe and a valve are installed outside the liquid adding port; and a switch valve is installed at the feed port.

[0019] In a further technical solution, the side pressure composite plate includes a plate body 1 and a plate body 2, two layers of filter screens are respectively provided on the plate body 2, and a layer of filter screen is provided inside the plate body 1; the length of the plate body 2 is less than the height of the two side rods;

[0020] The first plate body includes an outer frame plate, and sliding grooves are provided on both sides of the outer frame plate. Slide bars are provided on both sides of the second plate body, and the sliding grooves are adapted to the slide bars.

[0021] A transfer ear is installed at the bottom of the second plate. The bottom of the extraction tank is provided with a downwardly extending mounting cavity. A rotating shaft is installed in the mounting cavity. The second plate is sleeved on the second rotating shaft. A protective elastic cover is installed on the mounting cavity between the rotating shaft and the second plate to prevent the vegetable raw materials from being immersed and getting stuck.

[0022] In a further technical solution, guide strips are installed at the bottom of the two side rods and the circular portion, and guide grooves are provided at the bottom of the guide strips. A sliding column is installed at the top of the first plate, and the sliding column is installed in the guide groove and is used to slide along the guide groove.

[0023] An oblique plate is also installed on the plate body 1 or the plate body 2, and an oblique groove is provided on the oblique plate; one end of the extension column is connected to the oblique groove.

[0024] In a further technical solution, the oblique plate is installed on the side of plate body one; an adjustment groove is opened on the tank body of the extraction tank, the extension column passes through the adjustment groove, and sealing members are installed on both sides of the adjustment groove; a sealing ring is provided on the outside of the seal, and a flexible sealing plate is installed inside; the size of the flexible sealing plate is larger than the size of the adjustment groove.

[0025] In a further technical solution, the steering member includes a lower fixed plate, which is fixedly connected to the outer wall of the extraction tank; a vertical screw is installed on the lower fixed plate, and a rotating disk is threadedly installed on the vertical screw; the rotating disk includes an inner ring and an outer ring, and the inner ring and the outer ring are connected by a bearing; the inner ring is threadedly connected to the vertical screw; hinged rods are installed on both sides of the outer ring, and the hinged rods are socketed with the extension column.

[0026] In a further technical solution, the adjustment groove is an arc-shaped groove, and the center of the circle is located on the central axis of the rotating shaft; a steering motor is installed at the bottom of the lower fixed plate, and the output end of the steering motor is coaxially connected to the vertical screw rod to drive the vertical screw rod to rotate;

[0027] An upper fixing plate is also installed outside the extraction tank, and the upper fixing plate is connected to the top of the vertical screw through a mounting bearing;

[0028] A side plate is installed at the bottom of the rotating disk. A lateral notch is provided on the side plate. The lateral notch is used to limit the rotation of the hinged rod.

[0029] In a further technical solution, two groups of inclined plates are provided and are respectively installed on the top of plate body one and arranged in the direction of rotation; the steering member includes a pulling cylinder, the output end of the pulling cylinder is arranged outward and is installed with a connecting plate, and the connecting plate is detachably connected to the extension column.

[0030] In a further technical solution, the separator includes a disc separator, which includes a top feed port, a rotating drum, a shell and a separation motor, and the top feed port and the discharge pipe are connected by installing a drive pump;

[0031] A rotating drum is installed in the housing, a centripetal pump is installed on the top of the rotating drum, and the rotating drum and the centripetal pump are connected; a liquid inlet cavity is provided in the middle of the rotating drum, and a concentric shaft is installed at the bottom; a first pulley is installed at the bottom of the concentric shaft, and a second pulley is installed on the output end of the separation motor downward; a belt is installed between the first pulley and the second pulley;

[0032] A detachable sedimentation cover is installed on the centripetal pump, and a top feed port is installed on the top of the sedimentation cover, which leads into the sedimentation cover; a funnel plate is installed in the sedimentation cover, and a small-diameter hole is provided on the funnel plate, and a downward-bending annular curved edge is provided inside;

[0033] The funnel plates are arranged in multiple groups, and their diameters increase from top to bottom.

[0034] A method for extracting vegetable extracts, comprising the following steps:

[0035] Step 1: Place the vegetable raw materials into the extraction tank through the feed port according to the measurement, and add the solvent through the liquid adding port until the measurement meets the standard; turn on the heating component to heat;

[0036] Step 2: After heating for 0.5-1h, the concentration detector in the body starts to wait for a period of time to detect the concentration of the liquid in the circulation pipe;

[0037] When the concentration does not meet the requirements, the solenoid valve in the retention body remains open, and the circulation pump on one side pumps the water back into the extraction tank.

[0038] When the concentration meets the standard, the solenoid valve in the retention body switches to connect the transmission pump to the disc separator;

[0039] Step 3, simultaneously with step 2, high-temperature heating is performed to evaporate the liquid in the extraction tank, which flows upward from the steam circulation inlet to the condenser and then flows back into the extraction tank through the steam circulation outlet; the diameter of the high-temperature pipe installed on the steam circulation inlet is larger than the diameter of the high-temperature pipe installed on the steam circulation outlet;

[0040] Step 4, synchronously with step 2, when the concentration does not meet the requirements, the steering member drives the side plate to rotate in the extraction tank to squeeze the vegetable raw materials, and the squeezing reciprocation in a single time period is at least more than 4 times;

[0041] Step 5: pour out the vegetable raw materials from the bottom of the extraction tank and rinse with water;

[0042] Step 6: The vegetable extract enters the top feed port of the disc separator and first passes through the multi-layer funnel plate in the sedimentation cover for downward sedimentation and filtration; then flows into the liquid inlet chamber and enters the rotary drum downward;

[0043] The separation motor starts slowly and drives the concentric shaft via the belt;

[0044] The side water injection of the disc separator enables the bottom floating plug to move upward, thus floating up and blocking the side slag discharge channel;

[0045] High-speed centrifugal separation, the liquid material is discharged upward to the mixing tank through the centripetal pump, and the solid material moves to the discharge port of the slag discharge channel; pressure relief water is injected, and the small piston opens; the sealing water is discharged from the small piston, and the bottom float disk descends, opening the slag discharge channel;

[0046] After completing a single slag discharge, the bottom floating plug plate moves upward to block the lateral slag discharge channel again;

[0047] Step 7: The liquid in the storage tank is pumped to a double-effect concentrator through a delivery pump, and is concentrated by high-temperature steam heating.

[0048] Step 8: The double-effect concentrator is transported to the finished product tank through the delivery pump 2 to complete the extraction of the vegetable extract.

[0049] Compared with the existing known technologies, the technical solution provided by the present invention has the following significant effects:

[0050] The present invention realizes lateral extrusion of vegetable raw materials by setting two symmetrical groups of side pressure combination plates, and the bottom rotates along the rotating shaft. Since a square tank is adopted, the two groups of side pressure combination plates can achieve bottom coverage. The top is driven by a low-speed stirring motor to drive the broken line stirring blades on the stirring main rod to achieve low-speed stirring, which increases the disorder of the vegetable raw materials but does not destroy the nutritional components. Then, through the top of the two groups of side pressure combination plates, the side pressure combination plates are divided into plate body one and plate body two by sliding in the guide groove. Plate body one and plate body two can be extended and retracted, thereby realizing the rotation of the side pressure combination plates without colliding with the supporting plate. The oblique plates installed on the side or top of the side pressure combination plates, combined with the extension column, can be moved to the outside of the extract tank for traction, driving the steering of the side pressure combination plates.

[0051] The present invention enables the rotating disk on the outer side of the steering member to move forward and backward along the vertical screw rod, driving the hinged rod to push or retract the extension column, thereby realizing the rotation of the externally controlled side pressure combination plate and achieving a convenient adjustment effect.

[0052] The pulling cylinder of the present invention directly drives the end of the extension column to slide in the inclined plate through linear motion, thereby driving the first plate to be inserted downward into the second plate. The overall bottom rotation is achieved due to the rotating shaft and the adapter ear at the bottom, thereby achieving traction and steering movement, and completing the extrusion of the vegetable raw materials by the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 is a schematic structural diagram of the vegetable extract of the present invention;

[0054] Figure 2 It is a structural schematic diagram of the extraction tank, circulation pipeline and condenser of the present invention;

[0055] Figure 3 for Figure 2 A magnified view of part A;

[0056] Figure 4 It is a structural schematic diagram of the rotating disk and the side plate of the present invention;

[0057] Figure 5 It is a front view schematic diagram of the extraction tank of the present invention (the steering member is not shown);

[0058] Figure 6 is a cross-sectional view of an extraction tank of the present invention;

[0059] Figure 7 A vertical cross-sectional view of the adjustment tank of the present invention;

[0060] Figure 8 It is a structural schematic diagram of the carrying plate of the present invention;

[0061] Figure 9 A cross-sectional view of the center line of the guide strip of the present invention;

[0062] Figure 10 It is a structural schematic diagram of the side pressure composite plate of the present invention;

[0063] Figure 11 Schematic diagram of the structure of the plate body 1 of the present invention;

[0064] Figure 12 is a cross-sectional schematic diagram of the plate body 2 of the present invention;

[0065] Figure 13 It is a front schematic diagram of another extraction tank of the present invention;

[0066] Figure 14 It is a structural schematic diagram of another side pressure composite plate of the present invention;

[0067] Figure 15 It is a cross-sectional schematic diagram of the disc separator of the present invention;

[0068] Figure 16 for Figure 15 Enlarged view of part B.

[0069] In the picture:

[0070] 1. Extraction tank; 11. Main tank body; 12. Main stirring rod; 13. Low-speed stirring motor; 14. Carrying plate; 15. Broken-line stirring blade; 16. Heating assembly; 17. Steam circulation inlet; 18. Steam circulation outlet; 19. Tank cover;

[0071] 110, feed port; 111, liquid adding port; 112, rotating shaft; 113, adjusting groove; 114, sealing ring; 115, flexible sealing plate;

[0072] 141. Circular portion; 142. Two side rods; 143. Guide groove; 144. Guide strip;

[0073] 2. Side pressure assembly plate; 21. Filter screen; 22. Extension column; 23. Plate body 1; 24. Plate body 2; 231. Outer frame plate; 232. Sliding groove; 233. Sliding column; 241. Sliding bar; 242. Adapter ear; 25. Oblique plate;

[0074] 3. Steering member; 31. Lower fixed plate; 32. Vertical screw; 33. Rotating plate; 331. Inner ring; 332. Outer ring; 34. Articulated rod; 35. Steering motor; 36. Upper fixed plate; 37. Side plate; 371. Lateral notch; 38. Pull cylinder; 39. Connecting plate;

[0075] 4. Circulation pipeline; 41. Retention body; 42. Concentration detector; 43. Circulation pump;

[0076] 5. Condenser;

[0077] 6. Liquid storage tank;

[0078] 7. Separator; 71. Top feed port; 72. Drum; 73. Housing; 74. Separation motor; 75. Drive pump; 76. Centripetal pump; 77. Concentric shaft; 78. Belt; 79. Sedimentation hood; 710. Funnel plate; 711. Annular curved edge; 712. Bottom float disc;

[0079] 8. Double-effect concentrator; 81. Delivery pump 1;

[0080] 9. Finished product tank; 91. Delivery pump 2. DETAILED DESCRIPTION

[0081] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0082] Example 1

[0083] like Figure 1-12 FIG. 1 is an embodiment of the present invention, which is an extraction device for vegetable extracts, comprising:

[0084] like Figure 6 As shown, the extraction tank 1 includes a main tank body 11, which is a rectangular parallelepiped; a stirring main rod 12 is installed in the main tank body 11, and a stirring low-speed motor 13 is installed on the top; a supporting plate 14 is installed at the bottom of the stirring main rod 12, and the supporting plate 14 is fixed to the inner wall of the main tank body 11; the stirring main rod 12 and the supporting plate 14 rotate relative to each other; a downward-bent broken line stirring blade 15 is installed on the stirring main rod 12; a feed port 110 is provided at the upper end of the extraction tank 1, and a stirring port 110 is provided at the lower end. The end is provided with a material outlet and a liquid outlet, and a heating component 16 is installed inside; a symmetrically distributed side pressure combination plate 2 is installed at the bottom of the carrier plate 14, and a filter screen 21 is installed on the side pressure combination plate 2; the bottom of the side pressure combination plate 2 is rotatably connected to the extraction tank 1; an extension column 22 is installed on the side pressure combination plate 2, and the extension column 22 extends to the outside of the extraction tank 1. A steering member 3 is installed outside the extension column 22, and the steering member 3 is used to drive the side pressure combination plate 2 to rotate and squeeze the vegetable raw materials;

[0085] like Figure 2 As shown, a circulation pipe 4 is provided in the middle of the circulation pipe 4 with a retention body 41, and a concentration detector 42 is installed in the retention body 41; the end of the circulation pipe 4 is connected to the liquid outlet of the extraction tank 1, and the other end is pumped back to the feed port 110 by installing a circulation pump 43;

[0086] The condenser 5 is provided with a steam circulation inlet 17 and a steam circulation outlet 18 on the top of the extraction tank 1, and is connected to the condenser 5 through two sets of high-temperature pipes to condense the steam from the top of the extraction tank 1 back to the extraction tank 1;

[0087] The liquid storage tank 6 is switched and connected with the extraction tank 1 through a circulation pipe 4;

[0088] Separator 7, which performs solid-liquid separation of the concentrated liquid;

[0089] The outlet of the double-effect concentrator 8 and the liquid storage tank 6 are pumped to the feed port 110 of the double-effect concentrator 8 by installing a delivery pump 81;

[0090] The finished product tank 9 and the liquid outlet of the double-effect concentrator 8 are connected to the finished product tank 9 by installing a delivery pipe and a delivery pump 2 91 .

[0091] like Figure 8 As shown, the supporting plate 14 includes a circular portion 141 and two side rods 142, one end of the two side rods 142 is fixedly connected to the two sides of the circular portion 141, and the other end is fixedly connected to the inner wall of the extraction tank 1;

[0092] The circular portion 141 is connected to the stirring main rod 12 by installing a connecting bearing; the bottom height of the broken line stirring blade 15 is not higher than the height of the supporting plate 14; guide bars 144 are installed at the bottom of the two side rods 142 and the circular portion 141, and a guide groove 143 is opened at the bottom of the guide bar 144. A sliding column 233 is installed on the top of the plate body 23, and the sliding column 233 is installed in the guide groove 143 and is used to slide along the guide groove 143.

[0093] A tank cover 19 is provided on the top of the extraction tank 1, and a steam circulation inlet 17, a steam circulation outlet 18, a feed port 110 and a liquid adding port 111 are respectively opened on the tank cover 19; a liquid adding pipe and a valve are installed outside the liquid adding port 111; and a switch valve is installed at the feed port 110.

[0094] like Figure 10 As shown, the side pressure composite plate 2 includes a plate body 1 23 and a plate body 24, and two layers of filter screens 21 are respectively provided on the plate body 24. Figure 12 As shown. A layer of filter screen 21 is provided in the plate body 1 23; the length of the plate body 24 is less than the height of the rods 142 on both sides; the plate body 1 23 includes an outer frame plate 231, and sliding grooves 232 are provided on both sides of the outer frame plate 231, and slide bars 241 are provided on both sides of the plate body 24, and the sliding grooves 232 are adapted to the slide bars 241; a transfer ear 242 is installed at the bottom of the plate body 24, and a downwardly extending installation cavity is provided at the bottom of the extraction tank 1, and a rotating shaft 112 is installed in the installation cavity, and the plate body 24 is sleeved on the rotating shaft 112. An oblique plate 25 is also installed on the plate body 1 23 or the plate body 2 24, and an oblique groove is provided on the oblique plate 25; one end of the extension column 22 is connected to the oblique groove. As shown Figure 10 As shown, the oblique plate 25 is installed on the side of the plate body 23;

[0095] Combine Figure 5 and 7 As shown, the extraction tank 1 has an adjustment slot 113 formed on its body. The extension column 22 extends through the adjustment slot 113. Seals are installed on both sides of the adjustment slot 113. A sealing ring 114 is provided on the outside of the seal, and a flexible sealing plate 115 is installed inside the seal. The flexible sealing plate 115 is larger than the adjustment slot 113. The flexible sealing plate can be a foldable plate to enable the extension column to move along the adjustment slot.

[0096] like Figure 3 As shown, the steering member 3 includes a lower fixed plate 31, which is fixedly connected to the outer wall of the extraction tank 1; a vertical screw 32 is installed on the lower fixed plate 31, and a rotating disk 33 is threadedly installed on the vertical screw 32; the rotating disk 33 includes an inner ring 331 and an outer ring 332, as shown in FIG. Figure 4 As shown, the inner ring 331 and outer ring 332 are connected by a bearing; the inner ring 331 is threadedly connected to the vertical screw 32; and hinge rods 34 are mounted on both sides of the outer ring 332, which are socketed with the extension column 22. A side plate 37 is mounted on the bottom of the rotating disk 33, and the side plate 37 is provided with a lateral notch 371, which is used to limit the rotation of the hinge rod 34.

[0097] like Figure 5 As shown, the adjustment groove 113 is an arc-shaped groove, and the center of the circle is located on the central axis of the rotating shaft 112; a steering motor 35 is installed at the bottom of the lower fixed plate 31, and the output end of the steering motor 35 is coaxially connected to the vertical screw 32 for driving the vertical screw 32 to rotate;

[0098] An upper fixing plate 36 is also installed outside the extraction tank 1 , and the upper fixing plate 36 is connected to the top of the vertical screw rod 32 via a mounting bearing.

[0099] This embodiment realizes lateral extrusion of the vegetable raw materials by setting two symmetrical groups of side pressure combination plates, and the bottom rotates along the rotating shaft. Since a square tank is used, the two groups of side pressure combination plates can achieve bottom coverage. The top is driven by a low-speed stirring motor to drive the broken line stirring blades on the stirring main rod to achieve low-speed stirring, which increases the disorder of the vegetable raw materials but does not destroy the nutritional components. Then, through the top of the two groups of side pressure combination plates, the side pressure combination plates are divided into plate body one and plate body two by sliding in the guide groove. Plate body one and plate body two can be extended and retracted, thereby realizing the rotation of the side pressure combination plates without colliding with the supporting plate. The oblique plates installed on the side or top of the side pressure combination plates, combined with the extension column, can be moved to the outside of the extract tank for traction, driving the steering of the side pressure combination plates.

[0100] In this embodiment, the rotating disk on the outer side of the steering member moves forward and backward along the vertical screw rod, driving the hinge rod to push sideways or retract the extension column, thereby driving the rotation of the side pressure combination plate.

[0101] Example 2

[0102] like Figure 13 and 14 As shown, another embodiment of the present invention is shown, based on Example 1, Figure 13 In the embodiment, two groups of inclined plates 25 are provided and respectively installed on the top of the two groups of plate bodies 23. Figure 14 As shown, the installation position is set towards the rotation direction; Figure 13As shown, the steering member 3 includes a pulling cylinder 38, the output end of which is arranged outward and is equipped with a connecting plate 39. The connecting plate 39 is detachably connected to the extension column 22. The pulling cylinder directly drives the end of the extension column to slide within the inclined plate for linear motion, thereby driving the first plate to be inserted downward into the second plate. The whole body rotates at the bottom due to the rotating shaft and the adapter ear, thereby achieving traction and steering movement, completing the squeezing of the vegetable raw materials by the filter.

[0103] Example 3

[0104] like Figure 15 and 16 As shown, another embodiment of the present invention is shown, based on Example 2, as Figure 15 As shown, the separator 7 includes a disc separator 7, and the disc separator 70 includes a top feed port 71, a rotating drum 72, a housing 73 and a separation motor 74. The top feed port 71 is connected to the discharge pipe 41 by installing a drive pump 75;

[0105] A rotating drum 72 is mounted within the housing 73. A centripetal pump 76 is mounted on the top of the rotating drum 72. The rotating drum 72 and the centripetal pump 76 are in communication. A liquid inlet chamber is provided in the middle of the rotating drum 72, and a concentric shaft 77 is mounted on the bottom. A first pulley is mounted on the bottom of the concentric shaft 77. The output end of the separation motor 74 is downwardly disposed and mounted with a second pulley. A belt 78 is mounted between the first pulley and the second pulley.

[0106] A detachable sedimentation cover 79 is mounted on the centripetal pump 76. A top feed port 71 is mounted on the top of the sedimentation cover 79 and leads into the sedimentation cover 79. A funnel plate 710 is mounted in the sedimentation cover 79. The funnel plate 710 has a small diameter hole and a downwardly bent annular curved edge 711.

[0107] The funnel plates 710 are provided in multiple groups, and their diameters increase from top to bottom.

[0108] In this embodiment, a disc separator is used to reduce the solid content in the extract to ensure that the liquid content in the subsequent concentration meets the standard.

[0109] A method for extracting vegetable extracts, comprising the following steps:

[0110] Step 1: Place the vegetable raw materials into the extraction tank 1 through the feed port 110 according to the measurement, and add the solvent through the liquid adding port 111. Stop adding liquid after the measurement meets the standard; turn on the heating component 16 to heat;

[0111] Step 2: After a heating time of 0.5-1h, the concentration detector 42 in the retentate 41 starts to wait for a period of time to detect the concentration of the liquid in the circulation pipe 4;

[0112] When the concentration does not meet the requirements, the electromagnetic valve in the retentate 41 remains open and is pumped back to the extraction tank 1 by the circulation pump 43 on one side; the electromagnetic valve may be an electromagnetic three-way valve.

[0113] When the concentration meets the standard, the solenoid valve in the retentate 41 is switched to connect the transfer pump to the disc separator 7; Figure 2 As shown, the bottom of the circulation pump 43 is a transmission pump, and the transmission pump is downwardly connected to the disc separator.

[0114] Step 3, simultaneously with step 2, high-temperature heating is performed to evaporate the liquid in the extraction tank 1, which flows upward from the steam circulation inlet 17 to the condenser 5, and then flows back into the extraction tank 1 through the steam circulation outlet 18; the diameter of the high-temperature pipe installed on the steam circulation inlet 17 is larger than the diameter of the high-temperature pipe installed on the steam circulation outlet 18;

[0115] Step 4, synchronously with step 2, when the concentration does not meet the requirements, the steering member 3 drives the side plate to rotate in the extraction tank 1 to squeeze the vegetable raw materials, and the squeezing reciprocation in a single time period is at least more than 4 times;

[0116] Step 5: pour out the vegetable raw materials from the bottom of the extraction tank 1 and rinse with water;

[0117] Step 6: The vegetable extract enters the top feed port 71 of the disc separator 7, first passes through the multi-layer funnel plate 710 in the sedimentation cover 79, and is then filtered downward. Then, the extract flows into the liquid inlet chamber and enters the drum 72 downward.

[0118] The separation motor 74 starts slowly and drives the concentric shaft 77 via the belt 78;

[0119] The lateral water injection of the disc separator 70 enables the bottom floating plug disc 712 to float upward, thereby blocking the lateral slag discharge channel;

[0120] After high-speed centrifugal separation, the liquid material is discharged upward to the mixing tank 60 through the centripetal pump 76, and the solid material moves to the discharge port of the slag discharge channel; pressure relief water is injected, and the small piston opens; the sealing water is discharged from the small piston, and the bottom float disk 712 descends, opening the slag discharge channel;

[0121] After completing a single slag discharge, the bottom floating plug disc 712 moves upward to block the lateral slag discharge channel again;

[0122] Step 7: The liquid in the storage tank 6 is discharged to the double-effect concentrator 8 through the delivery pump 81, and the liquid is heated at high temperature by steam for concentration treatment;

[0123] In step 8, the double-effect concentrator 8 is transported to the finished product tank 9 through the second delivery pump 91 to complete the extraction of the vegetable extract.

[0124] The above description is merely a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any modification or equivalent variation based on the technical essence of the present invention shall still fall within the scope of protection claimed by the present invention.

Claims

1. An extraction device for vegetable extracts, characterized in that: include: The extraction tank (1) comprises a main tank body (11), which is a rectangular parallelepiped; a stirring main rod (12) is installed in the main tank body (11), and a stirring low-speed motor (13) is installed on the top; a supporting plate (14) is installed at the bottom of the stirring main rod (12), and the supporting plate (14) is fixed to the inner wall of the main tank body (11); the stirring main rod (12) and the supporting plate (14) rotate relative to each other; a downward-bent broken line stirring blade (15) is installed on the stirring main rod (12); a feed port (110) is provided at the upper end of the extraction tank (1), A material outlet and a liquid outlet are provided at the lower end, and a heating assembly (16) is installed inside; symmetrically distributed side pressure combination plates (2) are installed at the bottom of the carrier plate (14), and a filter screen (21) is installed on the side pressure combination plate (2); the bottom of the side pressure combination plate (2) is rotatably connected to the extraction tank (1); an extension column (22) is installed on the side pressure combination plate (2), the extension column (22) extends outside the extraction tank (1), and a steering member (3) is installed outside the extension column (22), and the steering member (3) is used to drive the side pressure combination plate (2) to rotate and squeeze the vegetable raw materials; A circulation pipe (4), wherein a retention body (41) is provided in the middle of the circulation pipe (4), and a concentration detector (42) is installed in the retention body (41); an end of the circulation pipe (4) is connected to the liquid outlet of the extraction tank (1), and the other end is pumped back to the feed port (110) by installing a circulation pump (43); A condenser (5) is provided with a steam circulation inlet (17) and a steam circulation outlet (18) on the top tank body of the extraction tank (1), and is connected to the condenser (5) through two sets of high-temperature pipes to condense the steam at the top of the extraction tank (1) back into the extraction tank (1); The liquid storage tank (6) is connected to the extraction tank (1) via a circulation pipe (4); A separator (7), the separator (7) performs solid-liquid separation of the concentrated liquid; The outlet of the double-effect concentrator (8) and the liquid storage tank (6) are pumped to the feed port (110) of the double-effect concentrator (8) by installing a delivery pump (81); The finished product tank (9) and the liquid outlet of the double-effect concentrator (8) are connected to the finished product tank (9) by installing a delivery pipe and a second delivery pump (91).

2. The vegetable extract extraction device according to claim 1, characterized in that: The supporting plate (14) comprises a circular portion (141) and two side rods (142), one end of each side rod (142) is fixedly connected to two sides of the circular portion (141), and the other end of each side rod (142) is fixedly connected to the inner wall of the extraction tank (1); The circular portion (141) is connected to the stirring main rod (12) by installing a connecting bearing; the bottom height of the folded stirring blade (15) is not higher than the height of the supporting plate (14); A tank cover (19) is provided on the top of the extraction tank (1), and a steam circulation inlet (17), a steam circulation outlet (18), a feed port (110), and a liquid adding port (111) are respectively provided on the tank cover (19); a liquid adding pipe and a valve are installed outside the liquid adding port (111); and an on-off valve is installed at the feed port (110).

3. The vegetable extract extraction device according to claim 2, characterized in that: The side pressure composite plate (2) includes a plate body 1 (23) and a plate body 2 (24), two layers of filter screens (21) are respectively provided on the plate body 2 (24), and a layer of filter screen (21) is provided inside the plate body 1 (23); the length of the plate body 2 (24) is less than the height of the two side rods (142); The first plate (23) includes an outer frame plate (231), and sliding grooves (232) are provided on both sides of the outer frame plate (231). Slide bars (241) are provided on both sides of the second plate (24), and the sliding grooves (232) are adapted to the slide bars (241); A transfer ear (242) is installed at the bottom of the second plate body (24), and a downwardly extending installation cavity is provided at the bottom of the extraction tank (1). A rotating shaft (112) is installed in the installation cavity, and the second plate body (24) is sleeved on the second rotating shaft (112).

4. The vegetable extract extraction device according to claim 3, characterized in that: A guide bar (144) is installed at the bottom of the two side rods (142) and the circular portion (141), and a guide groove (143) is provided at the bottom of the guide bar (144). A sliding column (233) is installed at the top of the plate body (23), and the sliding column (233) is installed in the guide groove (143) and is used to slide along the guide groove (143); An oblique plate (25) is also installed on the plate body 1 (23) or the plate body 2 (24), and an oblique groove is provided on the oblique plate (25); one end of the extension column (22) is connected to the oblique groove.

5. The extraction equipment for vegetable extract according to claim 4, characterized in that: The oblique plate (25) is installed on the side of the plate body (23); an adjustment groove (113) is provided on the tank body of the extraction tank (1); the extension column (22) passes through the adjustment groove (113), and sealing members are respectively installed on both sides of the adjustment groove (113); a sealing ring (114) is provided on the outer side of the sealing member, and a flexible sealing plate (115) is installed inside the sealing member; the size of the flexible sealing plate (115) is larger than the size of the adjustment groove (113).

6. The vegetable extract extraction device according to claim 4, characterized in that: The steering member (3) comprises a lower fixed plate (31), which is fixedly connected to the outer wall of the extraction tank (1); a vertical screw (32) is mounted on the lower fixed plate (31), and a rotating disk (33) is threadedly mounted on the vertical screw (32); the rotating disk (33) comprises an inner ring (331) and an outer ring (332), and the inner ring (331) and the outer ring (332) are connected via a bearing; the inner ring (331) is threadedly connected to the vertical screw (32); hinged rods (34) are mounted on both sides of the outer ring (332), and the hinged rods (34) are sleeved with the extension column (22).

7. The extraction equipment for vegetable extract according to claim 5, characterized in that: The adjusting groove (113) is an arc-shaped groove, and the center of the circle is located on the central axis of the rotating shaft (112); a steering motor (35) is installed at the bottom of the lower fixed plate (31), and the output end of the steering motor (35) is coaxially connected to the vertical screw (32) for driving the vertical screw (32) to rotate; An upper fixing plate (36) is also installed outside the extraction tank (1), and the upper fixing plate (36) is connected to the top of the vertical screw (32) via a mounting bearing; A side plate (37) is installed at the bottom of the rotating disk (33), and a lateral notch (371) is provided on the side plate (37). The lateral notch (371) is used to limit the rotation of the hinged rod (34).

8. The extraction equipment for vegetable extract according to claim 5, characterized in that: The oblique plates (25) are provided in two groups and are respectively mounted on the top of the first plate body (23) and arranged in the direction of rotation; the steering member (3) includes a pulling cylinder (38), the output end of the pulling cylinder (38) is arranged outward and is installed with a connecting plate (39), and the connecting plate (39) is detachably connected to the extension column (22).

9. The vegetable extract extraction device according to claim 5, characterized in that: The separator (7) includes a disc separator (7), and the disc separator (70) includes a top feed port (71), a rotating drum (72), a housing (73), and a separation motor (74). The top feed port (71) is connected to the discharge pipe (41) by installing a driving pump (75); A drum (72) is installed in the housing (73), a centripetal pump (76) is installed on the top of the drum (72), and the drum (72) and the centripetal pump (76) are connected; a liquid inlet cavity is provided in the middle of the drum (72), and a concentric shaft (77) is installed at the bottom; a pulley 1 is installed at the bottom of the concentric shaft (77), and the output end of the separation motor (74) is arranged downward and is installed with a pulley 2; a belt (78) is installed between the pulley 1 and the pulley 2; A detachable sedimentation cover (79) is installed on the centripetal pump (76), and a top feed port (71) is installed on the top of the sedimentation cover (79) and leads into the sedimentation cover (79); a funnel plate (710) is installed in the sedimentation cover (79), and a small-diameter hole is provided on the funnel plate (710), and a downwardly bent annular curved edge (711) is provided therein; The funnel plates (710) are provided in multiple groups, and their diameters increase from top to bottom.

10. A method for extracting vegetable extracts, characterized in that: The extraction device of the vegetable extract according to any one of claims 1 to 9 further comprises the following steps: Step 1: Place the vegetable raw materials into the extraction tank (1) through the feed port (110) according to the measurement, and add the solvent through the liquid addition port (111), and stop adding liquid after the measurement meets the standard; turn on the heating component (16) to heat; Step 2: After a heating time of 0.5-1h, the concentration detector (42) in the retentate (41) starts to wait for a period of time to detect the concentration of the liquid in the circulation pipe (4); When the concentration does not meet the requirements, the electromagnetic valve in the retentate (41) remains open, and the circulating pump (43) on one side is pumped back to the extraction tank (1); When the concentration meets the standard, the solenoid valve in the retentate (41) is switched to connect the transfer pump to the disc separator (7); Step 3, in parallel with step 2, high-temperature heating is performed to evaporate the liquid in the extraction tank (1), which flows upward from the steam circulation inlet (17) to the condenser (5), and then flows back into the extraction tank (1) through the steam circulation outlet (18); the diameter of the high-temperature pipe installed on the steam circulation inlet (17) is larger than the diameter of the high-temperature pipe installed on the steam circulation outlet (18); Step 4, synchronous with step 2, when the concentration does not meet the requirements, the steering member (3) drives the side plate to rotate in the extraction tank (1), squeezing the vegetable raw materials, and the squeezing reciprocation in a single time period is at least more than 4 times; Step 5, pouring out the vegetable raw materials from the bottom of the extraction tank (1) and rinsing them with water; Step 6: The vegetable extract enters the top feed port (71) of the disc separator (7), first passes through the multi-layer funnel plate (710) in the sedimentation cover (79), and is subjected to downward sedimentation filtration; then flows into the liquid inlet chamber and enters the rotary drum (72); The separation motor (74) starts slowly and drives the concentric shaft (77) via the belt (78); The lateral water injection of the disc separator (70) enables the bottom floating plug disc (712) to move upward, thereby floating up and blocking the lateral slag discharge channel; High-speed centrifugal separation, the liquid material is discharged upward to the mixing tank (60) through the centripetal pump (76), and the solid material moves to the discharge port of the slag discharge channel; pressure relief water is injected, and the small piston is opened; the sealing water is discharged from the small piston, and the bottom float disk (712) descends, opening the slag discharge channel; After completing a single slag discharge, the bottom floating plug disc (712) moves upward to block the lateral slag discharge channel again; Step 7: The liquid in the storage tank (6) is discharged to the double-effect concentrator (8) via a delivery pump (81), and is heated by steam at high temperature for concentration treatment; In step 8, the double-effect concentrator (8) is transported to the finished product tank (9) through the second delivery pump (91), thereby completing the extraction of the vegetable extract.

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