Multi-stage extraction equipment and process for plant extraction

Abstract

The invention discloses multi-stage extraction equipment and process for plant extraction, and relates to the technical field of plant extraction.The multi-stage extraction equipment for plant extraction comprises a material crushing box, two material crushing rollers are symmetrically and rotationally installed in the material crushing box, and two driving motors are installed on the material crushing box; the two driving motors are connected with the ends of the two crushing rollers on the same side respectively, a filter screen is obliquely installed in the crushing box, a conveying pump is installed on the crushing box, the conveying pump is connected with the crushing box through a liquid suction pipe, the conveying pump is connected with a first extraction kettle through a liquid conveying pipe, and through mutual meshing of the two crushing rollers, the first extraction kettle is connected with a second extraction kettle through a liquid conveying pipe; the crushing teeth on the outer surface of the crushing roller can crush plants to form a plant extracting solution, impurities in the extracting solution and crushed raw materials can be intercepted through the filter screen below, and the purity of the plant extracting solution can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of plant extraction, in particular to a multi-stage extraction device and process for plant extraction. Background Art

[0002] Plant juice extraction is the extraction of the essence from plant juice. Plant essence is the extraction of plant-specific aromatic substances, which are taken from the flowers, leaves, roots, bark, fruits, seeds, resins, etc. of herbal plants and extracted by distillation, pressing, etc. These aromatic substances concentrate certain active molecules hundreds of times. Due to their powerful and varied ingredients and effects, they have a variety of uses, and the juice extract of each plant is of certain importance to the human body or other scientific development directions to varying degrees.

[0003] When the existing plant extraction equipment extracts plant extracts, the crushing box crushes the plants and the resulting plant extracts are directly transported to the extraction kettle, but the plant extracts are not filtered, which easily leads to more impurities in the plant extracts, thereby affecting the extraction quality of the plants. Summary of the invention

[0004] The object of the present invention is to provide a multi-stage extraction device and process for plant extraction to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: the multi-stage extraction equipment for plant extraction comprises a crushing box, a heater, a first extraction kettle, a suction pump, a second extraction kettle, a condenser, an oil-liquid separator and a pipeline, two crushing rollers are symmetrically installed in the crushing box for rotation, and two driving motors are installed on the crushing box, and the two driving motors are respectively connected to the ends of the two crushing rollers on the same side, a filter is obliquely installed in the crushing box, a delivery pump is installed on the crushing box, the delivery pump is connected to the crushing box through a suction pipe, and the delivery pump is connected to the first extraction kettle through a liquid infusion pipe, the first extraction kettle is placed in the heater, a suction pump is installed on the top of the first extraction kettle, the suction pump is connected to the second extraction kettle through a pipeline, the second extraction kettle is connected to the condenser through a pipeline, and the condenser is connected to the oil-liquid separator through a pipe. The two rollers are connected with each other, and a pipeline is installed on the output end of the oil-liquid separator. When it is necessary to extract the plant, the plant raw material is transported to the crushing box. Through the mutual engagement of the two crushing rollers, the crushing teeth on the outer surface of the crushing rollers can crush the plant to form a plant extract. The impurities and the crushed raw materials in the extract can be intercepted by the filter below, which can improve the purity of the plant extract. The plant extract can be transported to the first extraction kettle driven by the delivery pump. At this time, the heater is started to form a plant essence under the action of heating in the extract in the first extraction kettle. The plant essence enters the second extraction kettle through the suction pump for re-extraction, thereby realizing multi-stage extraction of the plant extract. Finally, the plant essence in the second extraction kettle is transported to the condenser through the pipeline. After condensation, the plant essence is transported to the oil-liquid separator through the pipeline, thereby separating the plant essence.

[0006] As a preferred technical solution, the scrap box is provided with a scrap removal component and a scrap utilization component, and the rotation of the scrap roller is used to provide operating driving force for the scrap removal component and the scrap utilization component, and realize the coordinated operation of the scrap removal component and the scrap utilization component.

[0007] As a preferred technical solution, the debris removal assembly includes a transmission wheel, a first connecting shaft, a push-pull rod, a linkage block, a second connecting shaft, a ring rail, a rotating column, a transmission block, a push-pull plate, a toothed plate, a rotating shaft and a transmission gear; The ends of the two crushing rollers away from the driving motor are both equipped with a driving wheel disc, a first connecting shaft is eccentrically installed on the driving wheel disc, a push-pull rod is installed on the first connecting shaft, a linkage block is installed on the other end of the push-pull rod, a second connecting shaft is symmetrically installed on the linkage block, the second connecting shaft is connected to the first connecting shaft through the push-pull rod, a push-pull plate is installed at the bottom of the linkage block, a transmission block is installed at the bottom of the push-pull plate, a rotating column is rotatably installed on the transmission block, a ring rail is provided on the side of the crushing box close to the driving wheel disc, the rotating column is inserted in the ring rail, a toothed plate is installed on the transmission block, and the crushing A rotating shaft is rotatably installed on one side of the box close to the ring track, and the rotating shaft is at the center of the ring track. A transmission gear is installed on the end of the rotating shaft close to the tooth plate, and the tooth plate is meshed with the transmission gear. When the crushing roller rotates, the crushing roller can drive the linkage block to move back and forth longitudinally through the transmission member composed of the first connecting shaft, the second connecting shaft and the push-pull rod. The reciprocating movement of the linkage block can be used to drive the rotating column to move periodically counterclockwise along the ring track through the driving member composed of the linkage block, the push-pull plate and the transmission block, so that the linkage block can drive the transmission gear to rotate counterclockwise through the tooth plate during the movement.

[0008] As a preferred technical solution, both ends of the push-pull rod are provided with through holes, the first connecting shaft and the second connecting shaft both pass through the through holes and are rotatably matched, and both ends of the push-pull plate are hinged to the linkage block and the transmission block respectively.

[0009] As a preferred technical solution, the debris removal assembly also includes a driven gear, a rotating gear, a transmission chain, a connecting column, a linkage plate, a connecting rod, a wiper plate and a discharge port; A driven gear is installed at the other end of the rotating shaft, and two groups of rotating gears are symmetrically installed in the crusher box. A transmission chain is sleeved on the two rotating gears in the same group, and the transmission chain close to the rotating shaft is meshed with the driven gear. Connecting columns are installed on the opposite surfaces of the two transmission chains, and linkage plates are rotatably installed on the two connecting columns. A connecting rod is installed at the bottom of the linkage plate, and a wiping plate is installed at the bottom of the connecting rod. A discharge port is opened on one side of the crusher box, and the discharge port is at the lowest point of the filter screen. The transmission chain drives the connecting column to move in a flat key path during rotation, and the transmission chain is parallel to the filter screen. When the connecting column is in the lower path of the flat key, the wiping plate and the filter screen are The upper surfaces are in contact with each other. When the transmission gear rotates, the transmission gear can drive the driven gear to rotate synchronously through the rotating shaft. Through the meshing action of the driven gear and the transmission chain, the transmission chain can be driven to rotate on the rotating gear. By utilizing the rotation of the transmission chain, the wiping plate can be driven to move along the flat key path through the connecting column and the linkage plate. When the connecting column is in the lower track of the flat key path, the wiping plate can clean the crushed plant raw materials on the surface of the filter screen during the movement, thereby facilitating the discharge of the plant raw materials from the discharge port. When the connecting column is in the upper track of the flat key path, the wiping plate can be lifted during the resetting process, thereby avoiding the reverse accumulation of the crushed plant raw materials.

[0010] As an optimal technical solution, a working box is installed at the lower part of one side of the crusher box close to the discharge port, and a feeding port is provided at the upper part of the working box close to the side of the crusher box. The discharge port and the feeding port are connected through a discharge pipe, and an electric telescopic rod is provided on the top of the discharge pipe. A baffle is installed on the electric telescopic rod, and the baffle is in the feed port, and the baffle and the feed port have the same size. The electric telescopic rod is electrically connected to the driving motor. When the driving motor is running, the electric telescopic rod can control the baffle to move out from the feed port, so that the crushed plant raw materials dropped at the discharge port can enter the working box through the discharge pipe. When all the crushed plant raw materials on the filter screen enter the working box, the baffle is controlled by the electric telescopic rod to extend into the feed port to form a seal for the working box.

[0011] As a preferred technical solution, the crushed material utilization assembly includes a transmission turntable, a first transmission shaft, a fixed plate, a slideway, a slider, a second transmission shaft, a traction plate, a connecting plate, a connecting rod, a transmission plate, a liquid seepage plate, a sliding rod, a sliding hole, a liquid outlet, a liquid collecting pipe and a negative pressure pipe; The transmission gear is provided with a transmission turntable, and the transmission turntable is eccentrically provided with a first transmission shaft, and two fixed plates are symmetrically installed on one side of the crushing box close to the working box, and a slide track is provided on the fixed plate, and a slider is slidably installed in the slide track, and the slider is connected by a connecting plate, and a second transmission shaft is installed on the slider close to the transmission turntable, and the first transmission shaft and the second transmission shaft are connected through a traction plate, and the traction plate has connecting holes at both ends, and the first transmission shaft and the second transmission shaft both penetrate the connecting holes and are rotatably matched, and a connecting rod is installed at the bottom of the connecting plate, and a transmission plate is installed on the connecting rod, a seepage plate is slidably installed in the working box, and a sliding rod is installed on the seepage plate, and a sliding hole is provided on the side of the working box away from the crushing box, and the sliding rod penetrates the sliding hole and is connected to the transmission plate, and a liquid outlet is provided on the side of the bottom of the working box close to the transmission plate, and a liquid collecting pipe is installed on the liquid outlet, and the liquid collecting pipe is connected to the suction pipe The liquid pipe is connected by a negative pressure pipe, and when the transmission gear rotates, the transmission gear can drive the transmission turntable to rotate synchronously, and the transmission turntable drives the first transmission shaft to move in a circular trajectory during the rotation process, and can drive the slider to move laterally back and forth in the slideway under the traction member composed of the first transmission shaft, the second transmission shaft and the traction plate. When the slider moves laterally, the slider can drive the transmission plate to move through the connecting plate and the connecting rod, so that the transmission plate can drive the infiltration plate to move synchronously through the sliding rod, which is beneficial for the infiltration plate to vibrate and squeeze the crushed plant raw materials in the working box again, so that the extracted extract from the crushed plant raw materials can flow out through the infiltration plate, and when the infiltration plate is reset synchronously with the reset of the slider, the infiltration plate can push the plant extract into the liquid collecting pipe at the liquid outlet, and the plant extract can be transported to the first extraction kettle by the suction effect of the suction pipe on the liquid collecting pipe through the negative pressure pipe, thereby improving the utilization rate of the plant raw materials.

[0012] As a preferred technical solution, the negative pressure tube is a one-way tube, and a plurality of needle punctures are installed on the side of the seepage plate away from the slide rod. The setting of the needle punctures is conducive to the wall breaking treatment when the seepage plate vibrates the crushed raw materials.

[0013] The present invention provides an extraction process of a multi-stage extraction device for plant extraction, the steps of which are as follows: S1, feeding the plant raw materials into a crushing box, and causing the crushing roller to crush the plant raw materials to form a plant extract; S2, filtering the plant extract through a filter; S3, start the delivery pump to deliver the plant extract to the first extraction kettle; S4, start the heater, so that the plant essence steam formed in the first extraction kettle can enter the second extraction kettle through the pipeline under the action of the suction pump; S5, forming a multi-stage extraction through a second extraction kettle; S6. After the steam is condensed by the condenser, the plant juice can be separated by the oil-liquid separator.

[0014] Compared with the prior art, the present invention has the following beneficial effects: When it is necessary to extract the plants, the plant raw materials are conveyed to the crushing box. Through the mutual engagement of the two crushing rollers, the crushing teeth on the outer surface of the crushing rollers can crush the plants to form plant extract. The impurities and crushed raw materials in the extract can be intercepted by the filter below, which can improve the purity of the plant extract. The plant extract can be conveyed to the first extraction kettle driven by the conveying pump. At this time, the heater is started to form plant essence under the action of heating the extract in the first extraction kettle. The plant essence enters the second extraction kettle through the suction pump for re-extraction, thereby realizing multi-stage extraction of the plant extract.

[0015] Through the provision of a debris removal component, the present application can utilize the rotation of the debris roller to achieve periodic cleaning of the crushed plant material on the surface of the scraper filter, thereby facilitating the discharge of the plant material from the discharge port, and can lift the scraper during the resetting process to avoid the reverse accumulation of the crushed plant material.

[0016] The present application uses a crushed material utilization component to utilize a rotating driving force to enable the infiltration plate to vibrate and squeeze the crushed plant material in the working box again, so as to facilitate the extraction liquid in the crushed plant material to be transported to the first extraction kettle through the negative pressure pipe, thereby improving the utilization rate of the plant material. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall process structure of the present invention; Figure 2 This is a schematic structural diagram of the crushing box of the present invention from a first viewing angle; Figure 3 It is a schematic diagram of the first cutaway structure of the crushing box of the present invention; Figure 4 It is a schematic diagram of the second cutaway structure of the crushing box of the present invention; Figure 5 It is a schematic diagram of the third cutaway structure of the crushing box of the present invention; Figure 6 yes Figure 3 A is an enlarged structural diagram; Figure 7 yes Figure 5 The enlarged structural diagram at B in FIG. Figure 8 yes Figure 4 The enlarged structural diagram at C in FIG. Fig. 9 yes Figure 4 The enlarged structural diagram at D in the figure.

[0018] In the figure: 1, crushing box; 2, crushing roller; 3, driving motor; 4, filter screen; 5, delivery pump; 6, suction pipe; 7, infusion pipe; 8, heater; 9, first extraction kettle; 10, suction pump; 11, second extraction kettle; 12, condenser; 13, oil-liquid separator; 14, pipeline; 15. Debris removal assembly; 1501. Drive wheel; 1502. First connecting shaft; 1503. Push-pull rod; 1504. Linkage block; 1505. Second connecting shaft; 1506. Ring rail; 1507. Rotating column; 1508. Drive block; 1509. Push-pull plate; 1510. Tooth plate; 1511. Rotating shaft; 1512. Drive gear; 1513. Driven gear; 1514. Rotating gear; 1515. Drive chain; 1516. Connecting column; 1517. Linkage plate; 1518. Connecting rod; 1519. Wiping plate; 1520. Discharge port; 1521. Working box; 1522. Feed port; 1523. Feeding pipe; 1524. Electric telescopic rod; 1525. Baffle; 16. Crushed material utilization assembly; 1601. Transmission turntable; 1602. First transmission shaft; 1603. Fixed plate; 1604. Slideway; 1605. Sliding block; 1606. Second transmission shaft; 1607. Traction plate; 1608. Connecting plate; 1609. Connecting rod; 1610. Transmission plate; 1611. Liquid seepage plate; 1612. Sliding rod; 1613. Sliding hole; 1614. Liquid outlet; 1615. Liquid collecting pipe; 1616. Negative pressure pipe. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example: Figure 1-Figure 5As shown, the present invention provides a multi-stage extraction equipment and process technology scheme for plant extraction, characterized in that: the multi-stage extraction equipment for plant extraction comprises a crushing box 1, a heater 8, a first extraction kettle 9, a suction pump 10, a second extraction kettle 11, a condenser 12, an oil-liquid separator 13 and a pipeline 14, two crushing rollers 2 are symmetrically installed in the crushing box 1 for rotation, and two driving motors 3 are installed on the crushing box 1, and the two driving motors 3 are respectively connected to the ends of the two crushing rollers 2 on the same side, a filter screen 4 is obliquely installed in the crushing box 1, a delivery pump 5 is installed on the crushing box 1, the delivery pump 5 is connected to the crushing box 1 through a suction pipe 6, and the delivery pump 5 is connected to the first extraction kettle 9 through a liquid infusion pipe 7, the first extraction kettle 9 is placed in the heater 8, a suction pump 10 is installed on the top of the first extraction kettle 9, the suction pump 10 is connected to the second extraction kettle 11 through a pipeline 14, and the second extraction kettle 11 is connected to the condenser 12 through the pipeline 14 The condenser 12 is connected to the oil-liquid separator 13 through a pipeline 14. The output end of the oil-liquid separator 13 is equipped with a pipeline 14. When it is necessary to extract the plant, the plant raw material is transported to the crushing box 1. Through the mutual engagement of the two crushing rollers 2, the crushing teeth on the outer surface of the crushing roller 2 can crush the plant to form a plant extract. The impurities and crushed raw materials in the extract can be intercepted by the filter 4 below, which can improve the purity of the plant extract. The plant extract can be transported to the first extraction kettle 9 driven by the delivery pump 5. At this time, the heater 8 is started to form a plant essence in the extract in the first extraction kettle 9 under the action of heating. The plant essence enters the second extraction kettle 11 through the suction pump 10 for re-extraction, thereby realizing multi-stage extraction of the plant extract. Finally, the plant essence in the second extraction kettle 11 is transported to the condenser 12 through the pipeline 14. After condensation, the plant essence is transported to the oil-liquid separator 13 through the pipeline 14, thereby separating the plant essence.

[0021] The scrap box 1 is provided with a scrap removal assembly 15 and a scrap utilization assembly 16. The rotation of the scrap roller 2 is used to provide driving force for the scrap removal assembly 15 and the scrap utilization assembly 16, and the scrap removal assembly 15 and the scrap utilization assembly 16 are coordinated to operate.

[0022] like Figure 1-Figure 9 As shown, the debris removal assembly 15 includes a transmission wheel 1501, a first connecting shaft 1502, a push-pull rod 1503, a linkage block 1504, a second connecting shaft 1505, a ring rail 1506, a rotating column 1507, a transmission block 1508, a push-pull plate 1509, a tooth plate 1510, a rotating shaft 1511 and a transmission gear 1512; The ends of the two crushing rollers 2 away from the driving motor 3 are both equipped with a driving wheel 1501, and a first connecting shaft 1502 is eccentrically installed on the driving wheel 1501, and a push-pull rod 1503 is installed on the first connecting shaft 1502, and a linkage block 1504 is installed on the other end of the push-pull rod 1503, and a second connecting shaft 1505 is symmetrically installed on the linkage block 1504, and the second connecting shaft 1505 is connected to the first connecting shaft 1502 through the push-pull rod 1503, and a push-pull plate 1509 is installed at the bottom of the linkage block 1504, and a transmission block 1508 is installed at the bottom of the push-pull plate 1509, and a rotating column 1507 is rotatably installed on the transmission block 1508, and a ring rail 1506 is provided on the side of the crushing box 1 close to the driving wheel 1501. The column 1507 is inserted into the ring rail 1506, and a tooth plate 1510 is installed on the transmission block 1508. A rotating shaft 1511 is rotatably installed on one side of the crushing box 1 close to the ring rail 1506. The rotating shaft 1511 is located at the center of the ring rail 1506. A transmission gear 1512 is installed at the end of the rotating shaft 1511 close to the tooth plate 1510. The tooth plate 1510 is meshed with the transmission gear 1512. When the crushing roller 2 rotates, the crushing roller 2 can drive the linkage block 1504 to move back and forth longitudinally through the transmission member composed of the first connecting shaft 1502, the second connecting shaft 1505 and the push-pull rod 1503. The reciprocating movement of the linkage block 1504 can be used through the driving member composed of the linkage block 1504, the push-pull plate 1509 and the transmission block 1508 to attach Figure 3 Taking the main viewing angle as a reference, the transmission block 1508 can drive the rotating column 1507 to move periodically in the counterclockwise direction along the ring track 1506, so that the linkage block 1504 can drive the transmission gear 1512 to rotate in the counterclockwise direction through the tooth plate 1510 during the movement.

[0023] Both ends of the push-pull rod 1503 are provided with through holes, the first connecting shaft 1502 and the second connecting shaft 1505 both pass through the through holes and are rotatably matched, and both ends of the push-pull plate 1509 are hinged to the linkage block 1504 and the transmission block 1508 respectively.

[0024] The debris removal assembly 15 also includes a driven gear 1513, a rotating gear 1514, a transmission chain 1515, a connecting column 1516, a linkage plate 1517, a connecting rod 1518, a wiper plate 1519 and a discharge port 1520; A driven gear 1513 is installed at the other end of the rotating shaft 1511, and two groups of rotating gears 1514 are symmetrically installed in the crushing box 1. A transmission chain 1515 is sleeved on the two rotating gears 1514 of the same group. The transmission chain 1515 close to the rotating shaft 1511 is meshed with the driven gear 1513. Connecting columns 1516 are installed on the opposite surfaces of the two transmission chains 1515. Linkage plates 1517 are rotatably installed on the two connecting columns 1516. A connecting rod 1518 is installed at the bottom of the linkage plate 1517, and a wiping plate 1519 is installed at the bottom of the connecting rod 1518. A discharge port 1520 is opened on one side of the crushing box 1, and the discharge port 1520 is located at the lowest point of the filter screen 4. During the rotation process, the transmission chain 1515 drives the connecting column 1516 to move in a parallel key path, and the transmission chain 1515 is parallel to the filter screen 4. When the connecting column 1516 is in the lower path of the parallel key, , the wiping plate 1519 is in contact with the upper surface of the filter screen 4. When the transmission gear 1512 rotates, the transmission gear 1512 can drive the driven gear 1513 to rotate synchronously through the rotating shaft 1511. Through the meshing action of the driven gear 1513 and the transmission chain 1515, the transmission chain 1515 can be driven to rotate on the rotating gear 1514. By utilizing the rotation of the transmission chain 1515, the wiping plate 1519 can be driven to move along the flat key path through the connecting column 1516 and the linkage plate 1517. When the connecting column 1516 is in the lower track of the flat key path, the wiping plate 1519 can clean the crushed plant material on the surface of the filter screen 4 during the movement, thereby facilitating the discharge of the plant material from the discharge port 1520. When the connecting column 1516 is in the upper track of the flat key path, the wiping plate 1519 can be lifted during the resetting process, thereby avoiding the reverse accumulation of the crushed plant material.

[0025] A working box 1521 is installed at the lower part of one side of the crushing box 1 close to the discharge port 1520, and a feeding port 1522 is provided at the upper part of the working box 1521 close to the crushing box 1. The discharge port 1520 and the feeding port 1522 are connected through a discharge pipe 1523, and an electric telescopic rod 1524 is provided on the top of the discharge pipe 1523. A baffle 1525 is installed on the electric telescopic rod 1524, and the baffle 1525 is located in the feeding port 1522, and the baffle 1525 is the same size as the feeding port 1522. The electric telescopic rod 1524 is connected to the driving The motor 3 is electrically connected. When the driving motor 3 is running, the electric telescopic rod 1524 can control the baffle 1525 to move out from the feed port 1522, so that the crushed plant materials dropped from the discharge port 1520 can enter the working box 1521 through the discharge pipe 1523. When all the crushed plant materials on the filter 4 enter the working box 1521, the baffle 1525 is controlled by the electric telescopic rod 1524 to extend into the feed port 1522 to form a seal for the working box 1521. In addition, after the extraction work is completed in the working box 1521, the residue in the box can be cleaned manually.

[0026] like Figure 1-Figure 5 and Fig. 9 As shown, the crushed material utilization assembly 16 includes a transmission turntable 1601, a first transmission shaft 1602, a fixing plate 1603, a slideway 1604, a slider 1605, a second transmission shaft 1606, a traction plate 1607, a connecting plate 1608, a connecting rod 1609, a transmission plate 1610, a liquid seepage plate 1611, a sliding rod 1612, a sliding hole 1613, a liquid outlet 1614, a liquid collecting pipe 1615 and a negative pressure pipe 1616; The transmission gear 1512 is provided with a transmission turntable 1601, on which a first transmission shaft 1602 is eccentrically provided, two fixed plates 1603 are symmetrically provided on one side of the crushing box 1 close to the working box 1521, a slideway 1604 is provided on the fixed plate 1603, a slider 1605 is slidably provided in the slideway 1604, and the slider 1605 is connected through a connecting plate 1608, a second transmission shaft 1606 is provided on the slider close to the transmission turntable 1601, the first transmission shaft 1602 and the second transmission shaft 1606 are connected through a traction plate 1607, and both ends of the traction plate 1607 are provided with connecting plates. The first transmission shaft 1602 and the second transmission shaft 1606 both penetrate the connection hole and are rotatably matched. A connecting rod 1609 is installed at the bottom of the connecting plate 1608, and a transmission plate 1610 is installed on the connecting rod 1609. A liquid seepage plate 1611 is slidably installed in the working box 1521, and a sliding rod 1612 is installed on the liquid seepage plate 1611. A sliding hole 1613 is opened on the side of the working box 1521 away from the crushed material box 1, and the sliding rod 1612 penetrates the sliding hole 1613 and is connected to the transmission plate 1610. A liquid outlet 1614 is opened on the side of the bottom of the working box 1521 close to the transmission plate 1610, and a liquid outlet 1614 is installed on the liquid outlet 1614. The liquid collecting pipe 1615 is connected to the liquid suction pipe 6 through the negative pressure pipe 1616. When the transmission gear 1512 rotates, the transmission gear 1512 can drive the transmission turntable 1601 to rotate synchronously. The first transmission shaft 1602 is driven to move in a circular trajectory during the rotation of the transmission turntable 1601, and the slider 1605 can be driven to move back and forth in the slideway 1604 under the traction member composed of the first transmission shaft 1602, the second transmission shaft 1606 and the traction plate 1607. When the slider 1605 moves horizontally, the slider 1605 can drive the transmission plate 1610 to move through the connecting plate 1608 and the connecting rod 1609. The transmission plate 1610 can drive the infiltration plate 1611 to move synchronously through the sliding rod 1612, which is beneficial for the infiltration plate 1611 to vibrate and squeeze the crushed plant material in the working box 1521 again, so that the extracted extract from the crushed plant material can flow out through the infiltration plate 1611. When the infiltration plate 1611 is reset synchronously with the reset of the slider 1605, the infiltration plate 1611 can push the plant extract into the collecting pipe 1615 at the liquid outlet 1614, and the plant extract can be transported to the first extraction kettle 9 by using the suction effect of the suction pipe 6 on the collecting pipe 1615 through the negative pressure pipe 1616, which can improve the utilization rate of the plant material.

[0027] The negative pressure tube 1616 is a one-way tube, and a plurality of needles are installed on the side of the seepage plate 1611 away from the slide bar 1612. The setting of the needles is conducive to the wall breaking process when the seepage plate 1611 vibrates the crushed raw materials.

[0028] The present invention provides an extraction process of a multi-stage extraction device for plant extraction, the steps of which are as follows: S1, feeding the plant raw material into the crushing box 1, and causing the crushing roller 2 to crush the plant raw material to form a plant extract; S2, filtering the plant extract through the filter 4; S3, start the delivery pump 5 to deliver the plant extract to the first extraction kettle 9; S4, start the heater 8, so that the plant essence steam formed in the first extraction kettle 9 can enter the second extraction kettle 11 through the pipeline 14 under the action of the suction pump 10; S5, forming a multi-stage extraction through the second extraction kettle 11; S6. After the steam is condensed by the condenser 12, the plant juice can be separated by the oil-liquid separator 13.

[0029] Working principle of the present invention: When it is necessary to extract the plants, the plant raw materials are conveyed into the crushing box 1. Through the mutual meshing of the two crushing rollers 2, the crushing teeth on the outer surface of the crushing rollers 2 can crush the plants to form a plant extract. The impurities and crushed raw materials in the extract can be intercepted by the filter screen 4 below, which can improve the purity of the plant extract. The plant extract can be conveyed to the first extraction kettle 9 driven by the conveying pump 5. At this time, the heater 8 is started to form a plant essence under the action of heating in the extract in the first extraction kettle 9. The plant essence enters the second extraction kettle 11 through the suction pump 10 for re-extraction, thereby realizing multi-stage extraction of the plant extract. Finally, the plant essence in the second extraction kettle 11 is conveyed to the condenser 12 through the pipeline 14. After condensation, the plant essence is conveyed to the oil-liquid separator 13 through the pipeline 14, thereby separating the plant essence.

[0030] When the crushing roller 2 rotates, the crushing roller 2 can drive the linkage block 1504 to move back and forth longitudinally through the transmission member composed of the first connecting shaft 1502, the second connecting shaft 1505 and the push-pull rod 1503. By utilizing the reciprocating movement of the linkage block 1504, the driving member composed of the linkage block 1504, the push-pull plate 1509 and the transmission block 1508 can drive the rotating column 1507 to move periodically in the counterclockwise direction along the ring track 1506, so that the linkage block 1504 can drive the transmission gear 1512 to rotate counterclockwise through the tooth plate 1510 during the movement. When the transmission gear 1512 rotates, the transmission gear 1512 can drive the driven gear 1513 to rotate in the counterclockwise direction through the rotating shaft 1511. Synchronous rotation, through the meshing action of the driven gear 1513 and the transmission chain 1515, can drive the transmission chain 1515 to rotate on the rotating gear 1514, and by utilizing the rotation of the transmission chain 1515, the wiping plate 1519 can be driven to move along the flat key path through the connecting column 1516 and the linkage plate 1517. When the connecting column 1516 is in the lower track of the flat key path, the wiping plate 1519 can clean the crushed plant material on the surface of the filter 4 during the movement, thereby facilitating the discharge of the plant material from the discharge port 1520. When the connecting column 1516 is in the upper track of the flat key path, the wiping plate 1519 can be lifted during the resetting process, thereby avoiding the reverse accumulation of the crushed plant material.

[0031] When the driving motor 3 is running, the electric telescopic rod 1524 can control the baffle 1525 to move out from the feed port 1522, so that the crushed plant materials dropped from the discharge port 1520 can enter the working box 1521 through the discharge pipe 1523. When all the crushed plant materials on the filter screen 4 enter the working box 1521, the baffle 1525 is controlled by the electric telescopic rod 1524 to extend into the feed port 1522, thereby forming a seal for the working box 1521.

[0032] When the transmission gear 1512 rotates, the transmission gear 1512 can drive the transmission turntable 1601 to rotate synchronously, and the transmission turntable 1601 drives the first transmission shaft 1602 to move in a circular trajectory during the rotation process, and can drive the slider 1605 to move horizontally back and forth in the slideway 1604 under the traction member composed of the first transmission shaft 1602, the second transmission shaft 1606 and the traction plate 1607. When the slider 1605 moves horizontally, the slider 1605 can drive the transmission plate 1610 to move through the connecting plate 1608 and the connecting rod 1609, so that the transmission plate 1610 can move horizontally through the sliding rod 1608. 1612 drives the infiltration plate 1611 to move synchronously, which is beneficial for the infiltration plate 1611 to vibrate and squeeze the crushed plant material in the working box 1521 again, so that the extracted extract from the crushed plant material can flow out through the infiltration plate 1611. When the infiltration plate 1611 is reset synchronously with the reset of the slider 1605, the infiltration plate 1611 can push the plant extract into the collecting pipe 1615 at the liquid outlet 1614. By using the suction effect of the suction pipe 6 on the collecting pipe 1615 through the negative pressure pipe 1616, the plant extract can be transported to the first extraction kettle 9, which can improve the utilization rate of the plant material.

[0033] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A multi-stage extraction device for plant extraction, characterized in that: The multi-stage extraction device for plant extraction comprises a crushing box (1), a heater (8), a first extraction kettle (9), a suction pump (10), a second extraction kettle (11), a condenser (12), an oil-liquid separator (13) and a pipeline (14). Two crushing rollers (2) are symmetrically mounted in the crushing box (1) for rotation, and two drive motors (3) are mounted on the crushing box (1). The two drive motors (3) are respectively connected to the ends of two crushing rollers (2) on the same side. A filter screen (4) is obliquely mounted in the crushing box (1). A delivery pump (5) is mounted on the crushing box (1). The delivery pump (5) is connected to the crushing box (1). The crushing box (1) is connected via a liquid suction pipe (6), and the delivery pump (5) is connected to the first extraction kettle (9) via a liquid delivery pipe (7). The first extraction kettle (9) is placed in a heater (8). A suction pump (10) is installed on the top of the first extraction kettle (9). The suction pump (10) is connected to the second extraction kettle (11) via a pipeline (14). The second extraction kettle (11) is connected to a condenser (12) via a pipeline (14). The condenser (12) is connected to an oil-liquid separator (13) via a pipeline (14). The output end of the oil-liquid separator (13) is equipped with a pipeline (14).

2. The multi-stage extraction device for plant extraction according to claim 1, characterized in that: The scrap box (1) is provided with a scrap removal component (15) and a scrap utilization component (16), and the rotation of the scrap roller (2) is utilized to provide operating driving force for the scrap removal component (15) and the scrap utilization component (16), thereby achieving coordinated operation of the scrap removal component (15) and the scrap utilization component (16).

3. The multi-stage extraction device for plant extraction according to claim 2, characterized in that: The debris removal assembly (15) comprises a transmission wheel (1501), a first connecting shaft (1502), a push-pull rod (1503), a linkage block (1504), a second connecting shaft (1505), a ring rail (1506), a rotating column (1507), a transmission block (1508), a push-pull plate (1509), a toothed plate (1510), a rotating shaft (1511) and a transmission gear (1512); The ends of the two crushing rollers (2) away from the driving motor (3) are both equipped with a driving wheel disc (1501), a first connecting shaft (1502) is eccentrically installed on the driving wheel disc (1501), a push-pull rod (1503) is installed on the first connecting shaft (1502), a linkage block (1504) is installed on the other end of the push-pull rod (1503), a second connecting shaft (1505) is symmetrically installed on the linkage block (1504), the second connecting shaft (1505) is connected to the first connecting shaft (1502) via the push-pull rod (1503), a push-pull plate (1509) is installed at the bottom of the linkage block (1504), and a driving A block (1508) is provided with a rotating column (1507) rotatably mounted on the transmission block (1508); a circular track (1506) is provided on a side of the crushed material box (1) close to the transmission wheel disc (1501); the rotating column (1507) is inserted into the circular track (1506); a tooth plate (1510) is provided on the transmission block (1508); a rotating shaft (1511) is rotatably mounted on a side of the crushed material box (1) close to the circular track (1506); the rotating shaft (1511) is located at the center of the circular track (1506); a transmission gear (1512) is provided on an end of the rotating shaft (1511) close to the tooth plate (1510); the tooth plate (1510) is meshed with the transmission gear (1512).

4. The multi-stage extraction device for plant extraction according to claim 3, characterized in that: Through holes are provided at both ends of the push-pull rod (1503), and the first connecting shaft (1502) and the second connecting shaft (1505) both pass through the through holes and are rotatably matched. The two ends of the push-pull plate (1509) are respectively hinged to the linkage block (1504) and the transmission block (1508).

5. The multi-stage extraction device for plant extraction according to claim 4, characterized in that: The debris removal assembly (15) further comprises a driven gear (1513), a rotating gear (1514), a transmission chain (1515), a connecting column (1516), a linkage plate (1517), a connecting rod (1518), a wiper plate (1519) and a discharge port (1520); A driven gear (1513) is mounted on the other end of the rotating shaft (1511). Two groups of rotating gears (1514) are symmetrically mounted in the crushing box (1). A transmission chain (1515) is sleeved on the two rotating gears (1514) in the same group. The transmission chain (1515) close to the rotating shaft (1511) is meshed with the driven gear (1513). Connecting columns (1516) are mounted on opposite surfaces of the two transmission chains (1515). Linkage plates (1517) are rotatably mounted on the two connecting columns (1516). The linkage plates (1517) are rotatably mounted on the two connecting columns (1516). 7) is provided with a connecting rod (1518) at the bottom, and a wiping plate (1519) is provided at the bottom of the connecting rod (1518). A discharge port (1520) is provided on one side of the crushing box (1), and the discharge port (1520) is located at the lowest point of the filter screen (4). During the rotation process, the transmission chain (1515) drives the connecting column (1516) to move along a flat key path, and the transmission chain (1515) is parallel to the filter screen (4). When the connecting column (1516) is in the lower path of the flat key, the wiping plate (1519) contacts the upper surface of the filter screen (4).

6. The multi-stage extraction device for plant extraction according to claim 5, characterized in that: A working box (1521) is installed at the lower part of one side of the crushing box (1) close to the discharge port (1520), and a feeding port (1522) is provided at the upper part of the working box (1521) close to the side of the crushing box (1). The discharge port (1520) and the feeding port (1522) are connected via a discharge pipe (1523), and an electric telescopic rod (1524) is provided at the top of the discharge pipe (1523). A baffle (1525) is installed on the electric telescopic rod (1524), and the baffle (1525) is located in the feeding port (1522), and the baffle (1525) and the feeding port (1522) are the same size.

7. The multi-stage extraction device for plant extraction according to claim 6, characterized in that: The scrap material utilization component (16) comprises a transmission turntable (1601), a first transmission shaft (1602), a fixing plate (1603), a slideway (1604), a slider (1605), a second transmission shaft (1606), a traction plate (1607), a connecting plate (1608), a connecting rod (1609), a transmission plate (1610), a liquid seepage plate (1611), a sliding rod (1612), a sliding hole (1613), a liquid outlet (1614), a liquid collecting pipe (1615) and a negative pressure pipe (1616); A transmission rotating disk (1601) is mounted on the transmission gear (1512), and a first transmission shaft (1602) is eccentrically mounted on the transmission rotating disk (1601). Two fixed plates (1603) are symmetrically mounted on one side of the crushing box (1) close to the working box (1521). A slideway (1604) is provided on the fixed plate (1603), and a slider (1605) is slidably mounted in the slideway (1604). The slider (1605) is connected via a connecting plate (1608). A second transmission shaft (1606) is mounted on the slider (1605) close to the transmission rotating disk (1601). The first transmission shaft (1602) and the second transmission shaft (1606) are connected via a traction plate (1607). Both ends of the traction plate (1607) are provided with connecting holes. The first transmission shaft (1602) and the second transmission shaft (1606) are connected via a traction plate (1607). The movable shafts (1606) all pass through the connecting holes and are rotatably matched. A connecting rod (1609) is installed at the bottom of the connecting plate (1608), and a transmission plate (1610) is installed on the connecting rod (1609). A liquid seepage plate (1611) is slidably installed in the working box (1521), and a sliding rod (1612) is installed on the liquid seepage plate (1611). A sliding hole (1613) is provided on a side of the working box (1521) away from the crushed material box (1), and the sliding rod (1612) passes through the sliding hole (1613) and is connected to the transmission plate (1610). A liquid outlet (1614) is provided on a side of the bottom of the working box (1521) close to the transmission plate (1610), and a liquid collecting pipe (1615) is installed on the liquid outlet (1614), and the liquid collecting pipe (1615) is connected to the liquid suction pipe (6) through a negative pressure pipe (1616).

8. The multi-stage extraction device for plant extraction according to claim 7, characterized in that: The negative pressure tube (1616) is a one-way tube, and a plurality of needles are installed on the side of the liquid seepage plate (1611) away from the sliding rod (1612).

9. An extraction process of a multi-stage extraction device for plant extraction, applicable to a multi-stage extraction device for plant extraction as claimed in any one of claims 1 to 8, characterized in that: The process includes the following steps: S1, feeding the plant raw material into a crushing box (1), causing a crushing roller (2) to crush the plant raw material to form a plant extract; S2, filtering the plant extract through a filter (4); S3, starting the delivery pump (5) to deliver the plant extract to the first extraction kettle (9); S4, starting the heater (8) so that the plant essence steam formed in the first extraction kettle (9) can enter the second extraction kettle (11) through the pipeline (14) under the action of the suction pump (10); S5, forming a multi-stage extraction by a second extraction kettle (11); S6. After the steam is condensed by the condenser (12), the plant juice can be separated by the oil-liquid separator (13).

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