A multi-stage extraction apparatus and process for plant extraction

Abstract

The application discloses a multistage extraction device and process for plant extraction, and relates to the technical field of plant extraction.The multistage extraction device for plant extraction comprises a crushing box, two crushing rollers are symmetrically and rotatably installed in the crushing box, two driving motors are installed on the crushing box, the two driving motors are respectively connected with the end portions of the two crushing rollers on the same side, 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, and the conveying pump is connected with a first extraction kettle through a liquid conveying pipe.The mutually meshed two crushing rollers can crush plants by means of the crushing teeth on the outer surfaces of the crushing rollers to form plant extraction liquid, the filter screen under the crushing box can intercept impurities and crushed raw materials in the extraction liquid, and the purity of the plant extraction liquid can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plant extraction, and particularly relates to a multistage extraction equipment and process for plant extraction. BACKGROUND

[0002] Plant juice extraction is to extract the essence in plant juice, and the plant essence is a special aromatic substance of plants, which is extracted from flowers, leaves, roots, barks, fruits, seeds and resins of herbal plants by distillation and pressing, etc. The aromatic substance concentrates some active molecules by hundreds of times. Due to the strong and changeable components and effects, the plant juice extract has various uses, and the juice extract of each plant has certain significance for the human body or other scientific development directions in different degrees.

[0003] In the prior art, when the plant extraction equipment extracts plant extraction liquid, the plant extraction liquid formed by the crushing box during the crushing of the plant is directly delivered to the extraction kettle, but the plant extraction liquid is not filtered, so that many impurities exist in the plant extraction liquid, thereby affecting the extraction quality of the plant. SUMMARY

[0004] The present application aims to provide a multistage extraction equipment and process for plant extraction to solve the problems in the prior art.

[0005] To achieve the above object, the application 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 and rotatably arranged in the crushing box, two driving motors are arranged on the crushing box, the two driving motors are connected with the end portions of the two crushing rollers on the same side respectively, a filter screen is obliquely arranged in the crushing box, a conveying pump is arranged on the crushing box, the conveying pump is connected with the crushing box through a suction tube, the conveying pump is connected with the first extraction kettle through a liquid delivery tube, the first extraction kettle is arranged in the heater, a suction pump is arranged on the top of the first extraction kettle, the suction pump is connected with the second extraction kettle through the pipeline, the second extraction kettle is connected with the condenser through the pipeline, the condenser is connected with the oil-liquid separator through the pipeline, and the pipeline is arranged on the output end of the oil-liquid separator.When plant extraction is needed, plant raw materials are conveyed into the crushing box, the crushing rollers are meshed with each other, the crushing teeth on the outer surface of the crushing rollers can crush the plants to form plant extraction liquid, the filter screen below can intercept impurities and crushed raw materials in the extraction liquid, the purity of the plant extraction liquid can be improved, the plant extraction liquid can be conveyed into the first extraction kettle under the action of the conveying pump, at this time, the heater is started, the extraction liquid in the first extraction kettle is formed into plant essence under the action of heating, the plant essence is introduced into the second extraction kettle through the suction pump for re-extraction, multi-stage extraction of the plant extraction liquid is realized, finally, the plant essence in the second extraction kettle is conveyed into the condenser through the pipeline, the plant essence is conveyed into the oil-liquid separator through the pipeline after condensation, and the plant essence is separated.

[0006] As a preferred technical scheme, the crushing box is provided with a crushing removing assembly and a crushing utilizing assembly, the rotation of the crushing rollers provides driving force for the operation of the crushing removing assembly and the crushing utilizing assembly, and the crushing removing assembly and the crushing utilizing assembly are cooperatively operated.

[0007] As a preferred technical scheme, the crushing removing assembly comprises a transmission disc, 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.

[0008] Two said end of the drive motor away from the roll are mounted with transmission wheel, the transmission wheel is eccentrically mounted with first connecting shaft, the first connecting shaft is mounted with push-pull rod, the other end of the push-pull rod is mounted with linkage block, the linkage block is symmetrically mounted with second connecting shaft, the second connecting shaft is connected with the first connecting shaft through the push-pull rod, the bottom of the linkage block is mounted with push-pull plate, the bottom of the push-pull plate is mounted with transmission block, the transmission block is rotatably mounted with rotating column, the side of the material box close to the transmission wheel is provided with ring rail, the rotating column is inserted in the ring rail, the transmission block is mounted with toothed plate, the side of the material box close to the ring rail is rotatably mounted with rotating shaft, the rotating shaft is at the center of the ring rail, the end of the rotating shaft close to the toothed plate is mounted with transmission gear, the toothed plate is engaged with the transmission gear, when the roll is rotated, the transmission composed of the first connecting shaft, the second connecting shaft and the push-pull rod can drive the linkage block to move longitudinally, the reciprocating movement of the linkage block can drive the rotating column to move periodically in counterclockwise direction along the ring rail through the drive composed of the linkage block, the push-pull plate and the transmission block, so that the linkage block can rotate in counterclockwise direction through the toothed plate driving the transmission gear during the movement.

[0009] As a preferred technical scheme, the two ends of the push-pull rod are provided with through holes, the first connecting shaft and the second connecting shaft are penetrated through the through holes and are rotatably matched, and the two ends of the push-pull plate are hingedly connected with the linkage block and the transmission block respectively.

[0010] As a preferred technical scheme, the material removing assembly further comprises a driven gear, a rotating gear, a transmission chain, a connecting column, a linkage plate, a connecting rod, a wiping plate and a discharge port.

[0011] The other end of the rotating shaft is provided with a driven gear, two groups of rotating gears are symmetrically arranged in the crushing box, a transmission chain is arranged on the two rotating gears of the same group, the transmission chain close to the rotating shaft is engaged with the driven gear, connecting columns are arranged on the opposite surfaces of the two transmission chains, linkage plates are rotatably arranged on the connecting columns, connecting rods are arranged at the bottom of the linkage plates, and wiper plates are arranged at the bottom of the connecting rods.

[0012] As a preferred technical solution, the lower side of the crushing box close to the discharge port is provided with a working box, the upper part of the working box is provided with a feeding port on the side of the crushing box, the discharge port and the feeding port are connected through a discharge pipe, the top of the discharge pipe is provided with an electric telescopic rod, a baffle is arranged on the electric telescopic rod, the baffle is arranged in the feeding port, and the baffle has the same size as the feeding port, the electric telescopic rod is electrically connected with the driving motor, when the driving motor operates, the electric telescopic rod can control the baffle to move out of the feeding port, so that the crushed plant raw materials falling from the discharge port can enter the working box through the discharge pipe, and when all the crushed plant raw materials on the filter screen enter the working box, the baffle is controlled to extend into the feeding port through the electric telescopic rod, so as to seal the working box.

[0013] As a preferred technical solution, the crushing assembly comprises a transmission turntable, a first transmission shaft, a fixed plate, a slide, a sliding block, a second transmission shaft, a traction plate, a connecting plate, a connecting rod, a transmission plate, a liquid permeation plate, a slide rod, a slide hole, a liquid outlet, a liquid collecting pipe and a negative pressure pipe.

[0014] The transmission gear is provided with a transmission rotating disc, the first transmission shaft is eccentrically arranged on the transmission rotating disc, two fixed plates are symmetrically arranged on the side of the crushing box close to the working box, a slide is formed in the fixed plate, a sliding block is slidably arranged in the slide, the sliding blocks are connected through a connecting plate, a second transmission shaft is arranged on the sliding block close to the transmission rotating disc, the first transmission shaft and the second transmission shaft are connected through a traction plate, a connecting hole is formed in the two ends of the traction plate, the first transmission shaft and the second transmission shaft penetrate through the connecting hole and are rotationally connected, a connecting rod is arranged at the bottom of the connecting plate, a transmission plate is arranged on the connecting rod, a liquid permeation plate is slidably arranged in the working box, a sliding rod is arranged on the liquid permeation plate, a sliding hole is formed in the side of the working box away from the crushing box, the sliding rod penetrates through the sliding hole and is connected with the transmission plate, a liquid outlet is formed in the side of the bottom of the working box close to the transmission plate, a liquid collecting pipe is arranged on the liquid outlet, and the liquid collecting pipe is connected with the liquid suction pipe through a negative pressure pipe; when the transmission gear rotates, the transmission gear can drive the transmission rotating disc to rotate synchronously, the first transmission shaft moves along a circular track under the action of the transmission rotating disc during rotation, the sliding block moves transversely and reciprocally in the slide under the action of the traction member composed of the first transmission shaft, the second transmission shaft and the traction plate, when the sliding block moves transversely, the sliding block drives the transmission plate to move through the connecting plate and the connecting rod, the transmission plate drives the liquid permeation plate to move synchronously through the sliding rod, which is beneficial to the vibration and extrusion of the liquid permeation plate on the crushed plant raw materials in the working box, the extracted liquid in the crushed plant raw materials can flow out through the liquid permeation plate, when the liquid permeation plate is reset synchronously with the resetting of the sliding block, the liquid permeation plate pushes the plant extract into the liquid collecting pipe of the liquid outlet, the plant extract can be transported into the first extraction kettle through the suction of the liquid suction pipe through the negative pressure pipe, and the utilization rate of the plant raw materials can be improved.

[0015] As a preferred technical solution, the negative pressure pipe is a one-way pipe, and a plurality of needles are arranged on the side of the liquid permeation plate away from the sliding rod, which is beneficial to the wall breaking treatment of the liquid permeation plate on the crushed raw materials during vibration.

[0016] The extraction process of the multi-stage extraction equipment for plant extraction provided by the application comprises the following steps:

[0017] S1, plant raw materials are sent into a crushing box, and a crushing roller crushes the plant raw materials to form plant extract;

[0018] S2, the plant extract is filtered through a filter screen;

[0019] S3, a conveying pump is started to convey the plant extract into a first extraction kettle;

[0020] 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;

[0021] S5, form multi-stage extraction through the second extraction kettle;

[0022] S6, after the condenser condenses the steam, the oil-liquid separator can separate the plant juice.

[0023] Compared with the prior art, the beneficial effects of the present application are:

[0024] When plant extraction is needed, the plant raw materials are transported into the crushing box, the crushing teeth on the outer surface of the crushing roller can crush the plants through the mutual engagement of the two crushing rollers, forming plant extraction liquid, which can intercept impurities and crushed raw materials in the extraction liquid through the lower filter screen, improving the purity of the plant extraction liquid, which can be transported into the first extraction kettle under the driving of the delivery pump. At this time, the heater is started, so that the extraction liquid in the first extraction kettle forms plant essence under the action of heating, and the plant essence enters the second extraction kettle for re-extraction through the suction pump, realizing multi-stage extraction of the plant extraction liquid.

[0025] The present application can periodically clean the surface of the rubbing plate filter screen with the crushed plant raw materials through the rotation of the crushing roller, so that the plant raw materials can be easily discharged from the discharge port, and the rubbing plate can be lifted during the resetting process to avoid the accumulation of crushed plant raw materials in the opposite direction.

[0026] The present application can use the crushing component to realize the re-vibration and extrusion of the crushed plant raw materials in the working box by the rotating driving force, so that the extraction liquid in the crushed plant raw materials can be easily transported into the first extraction kettle through the negative pressure pipe, and the utilization rate of the plant raw materials can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a general flow structure schematic diagram of the present application;

[0028] Figure 2 It is a first perspective structure schematic diagram of the crushing box of the present application;

[0029] Figure 3 It is a first cut structure schematic diagram of the crushing box of the present application;

[0030] Figure 4 It is a second cut structure schematic diagram of the crushing box of the present application;

[0031] Figure 5 It is a third cut structure schematic diagram of the crushing box of the present application;

[0032] Figure 6 is Figure 3 an enlarged structural schematic view of A in FIG. 1;

[0033] Figure 7 is Figure 5 an enlarged structural schematic view of B in FIG. 1;

[0034] Figure 8 is Figure 4 an enlarged structural schematic view of C in FIG. 1;

[0035] Figure 9 is Figure 4 an enlarged structural schematic view of D in FIG. 1.

[0036] In the figure: 1, a broken material box; 2, a broken material roller; 3, a driving motor; 4, a filter screen; 5, a conveying pump; 6, a liquid suction pipe; 7, a liquid conveying pipe; 8, a heater; 9, a first extraction kettle; 10, a suction pump; 11, a second extraction kettle; 12, a condenser; 13, an oil-liquid separator; 14, a pipeline;

[0037] 15, a broken material removal assembly; 1501, a transmission wheel disc; 1502, a first connecting shaft; 1503, a push-pull rod; 1504, a linkage block; 1505, a second connecting shaft; 1506, a ring rail; 1507, a rotating column; 1508, a transmission block; 1509, a push-pull plate; 1510, a toothed plate; 1511, a rotating shaft; 1512, a transmission gear; 1513, a driven gear; 1514, a rotating gear; 1515, a transmission chain; 1516, a connecting column; 1517, a linkage plate; 1518, a connecting rod; 1519, a wiping plate; 1520, a discharge port; 1521, a working box; 1522, a feeding port; 1523, a discharging pipe; 1524, an electric telescopic rod; 1525, a baffle;

[0038] 16, a broken material utilization assembly; 1601, a transmission rotating disc; 1602, a first transmission shaft; 1603, a fixed plate; 1604, a slide way; 1605, a sliding block; 1606, a second transmission shaft; 1607, a traction plate; 1608, a connecting plate; 1609, a connecting rod; 1610, a transmission plate; 1611, a liquid permeation plate; 1612, a sliding rod; 1613, a sliding hole; 1614, a liquid outlet; 1615, a liquid collecting pipe; 1616, a negative pressure pipe. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0040] Embodiment: As shown in Figures 1-5 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 installed in the crushing box 1, and two driving motors 3 are installed on the crushing box 1. The two driving motors 3 are respectively connected with the end portions of the two crushing rollers 2 on the same side. A filter screen 4 is obliquely installed in the crushing box 1. A conveying pump 5 is installed on the crushing box 1. The conveying pump 5 is connected with the crushing box 1 through a liquid suction pipe 6, and connected with the first extraction kettle 9 through a liquid conveying pipe 7. The first extraction kettle 9 is placed in the heater 8. The top of the first extraction kettle 9 is provided with the suction pump 10. The suction pump 10 is connected with the second extraction kettle 11 through the pipeline 14. The second extraction kettle 11 is connected with the condenser 12 through the pipeline 14. The condenser 12 is connected with the oil-liquid separator 13 through the pipeline 14. The output end of the oil-liquid separator 13 is provided with the pipeline 14. When plant extraction is needed, plant raw materials are conveyed into the crushing box 1. The crushing rollers 2 are meshed with each other, so that the crushing teeth on the outer surface of the crushing rollers 2 can crush the plants to form plant extraction liquid. The filter screen 4 below can intercept impurities and crushed raw materials in the extraction liquid, so as to improve the purity of the plant extraction liquid. The plant extraction liquid can be conveyed into the first extraction kettle 9 under the driving of the conveying pump 5. At this time, the heater 8 is started, so that the extraction liquid in the first extraction kettle 9 forms plant essence under the action of heating. The plant essence enters the second extraction kettle 11 through the suction pump 10 for re-extraction, so as to realize multi-stage extraction of the plant extraction liquid. Finally, the plant essence in the second extraction kettle 11 is conveyed into the condenser 12 through the pipeline 14. After condensation, the plant essence is conveyed into the oil-liquid separator 13 through the pipeline 14, so as to separate the plant essence.

[0041] The crushing box 1 is provided with a crushing removal assembly 15 and a crushing utilization assembly 16. The rotation of the crushing rollers 2 provides driving force for the operation of the crushing removal assembly 15 and the crushing utilization assembly 16, and realizes the cooperative operation of the crushing removal assembly 15 and the crushing utilization assembly 16.

[0042] As shown in Figures 1-9 The crushing removal assembly 15 comprises a transmission wheel disc 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.

[0043] Two said end of the drive motor 3 away from the material roll 2 are provided with transmission disc 1501, the transmission disc 1501 is eccentricly provided with first connecting shaft 1502, the first connecting shaft 1502 is provided with push-pull rod 1503, the other end of the push-pull rod 1503 is provided with linkage block 1504, the linkage block 1504 is symmetrically provided with second connecting shaft 1505, the second connecting shaft 1505 is connected with the first connecting shaft 1502 through the push-pull rod 1503, the bottom of the linkage block 1504 is provided with push-pull plate 1509, the bottom of the push-pull plate 1509 is provided with transmission block 1508, the transmission block 1508 is rotatably provided with rotating column 1507, the side of the material box 1 close to the transmission disc 1501 is provided with ring rail 1506, the rotating column 1507 is inserted in the ring rail 1506, the transmission block 1508 is provided with gear plate 1510, the side of the material box 1 close to the ring rail 1506 is rotatably provided with rotating shaft 1511, the rotating shaft 1511 is located at the center of the ring rail 1506, the end of the rotating shaft 1511 close to the gear plate 1510 is provided with transmission gear 1512, the gear plate 1510 is engaged with the transmission gear 1512, when the material roll 2 rotates, the transmission part composed of the first connecting shaft 1502, the second connecting shaft 1505 and the push-pull rod 1503 can drive the linkage block 1504 to move longitudinally and reciprocally, by the reciprocating movement of the linkage block 1504, the driving part 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 along the ring rail 1506 in the counterclockwise direction, so that the linkage block 1504 can drive the transmission gear 1512 to rotate in the counterclockwise direction through the gear plate 1510 during the movement. Figure 3 With the front view as the reference, the transmission block 1508 can drive the rotating column 1507 to move periodically along the ring rail 1506 in the counterclockwise direction, so that the linkage block 1504 can drive the transmission gear 1512 to rotate in the counterclockwise direction through the gear plate 1510 during the movement.

[0044] The both ends of the push-pull rod 1503 are provided with through holes, the first connecting shaft 1502 and the second connecting shaft 1505 penetrate the through holes and are rotatably connected, the both ends of the push-pull plate 1509 are hingedly connected with the linkage block 1504 and the transmission block 1508 respectively.

[0045] The material removing assembly 15 further comprises driven gear 1513, rotating gear 1514, transmission chain 1515, connecting column 1516, linkage plate 1517, connecting rod 1518, wiping plate 1519 and discharge port 1520.

[0046] The other end of the rotating shaft 1511 is provided with a driven gear 1513, 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 in the same group, the transmission chain 1515 close to the rotating shaft 1511 is engaged with the driven gear 1513, the opposite surfaces of the two transmission chains 1515 are provided with connecting columns 1516, the connecting columns 1516 are rotatably installed on the linkage plates 1517, the linkage plates 1517 are provided with connecting rods 1518 at the bottom, the connecting rods 1518 are provided with the wiping plates 1519 at the bottom, the crushing box 1 is provided with a discharge port 1520 on one side, the discharge port 1520 is at the lowest position of the filter screen 4, the transmission chain 1515 drives the connecting column 1516 to move along the flat key path during rotation, and the transmission chain 1515 is parallel to the filter screen 4, when the connecting column 1516 is at the lower path of the flat 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, the driven gear 1513 and the transmission chain 1515 can drive the transmission chain 1515 to rotate on the rotating gear 1514 through the meshing effect, the transmission chain 1515 can drive the wiping plate 1519 to move along the flat key path through the connecting column 1516 and the linkage plate 1517, when the connecting column 1516 is at the lower trajectory of the flat key path, the wiping plate 1519 can clean the crushed plant raw materials on the surface of the filter screen 4 during movement, so as to facilitate the discharge of the plant raw materials from the discharge port 1520, when the connecting column 1516 is at the upper trajectory of the flat key path, the wiping plate 1519 can be lifted during resetting, thereby avoiding the accumulation of the crushed plant raw materials in the opposite direction.

[0047] The working box 1521 is arranged at the lower part of the one side of the crushing box 1 close to the discharging port 1520, the upper part of the working box 1521 is provided with the feeding port 1522 through the side of the crushing box 1, the discharging port 1520 and the feeding port 1522 are connected through the downcomer 1523, the top of the downcomer 1523 is provided with the electric telescopic rod 1524, the electric telescopic rod 1524 is arranged with the baffle 1525, the baffle 1525 is in the feeding port 1522, and the baffle 1525 is the same size as the feeding port 1522, the electric telescopic rod 1524 is electrically connected with the driving motor 3, when the driving motor 3 operates, the electric telescopic rod 1524 can control the baffle 1525 to move out of the feeding port 1522, so that the crushed plant raw materials falling from the discharging port 1520 can enter the working box 1521 through the downcomer 1523, when the crushed plant raw materials on the filter screen 4 all enter the working box 1521, the baffle 1525 is controlled to extend into the feeding port 1522 through the electric telescopic rod 1524, so that the working box 1521 is sealed, and after the extraction work in the working box 1521 is completed, the residues in the box can be cleaned by manual.

[0048] As shown in Figures 1-5 and Figure 9 The crushing assembly 16 includes a transmission turntable 1601, a first transmission shaft 1602, a fixed plate 1603, a slide 1604, a sliding block 1605, a second transmission shaft 1606, a traction plate 1607, a connecting plate 1608, a connecting rod 1609, a transmission plate 1610, a liquid permeation 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.

[0049] The transmission gear 1512 is provided with a transmission turntable 1601, the first transmission shaft 1602 is eccentrically arranged on the transmission turntable 1601, two fixed plates 1603 are symmetrically arranged on one side of the work tank 1521 close to the crushing tank 1, the slide 1604 is arranged on the fixed plate 1603, the sliding block 1605 is slidably arranged in the slide 1604, the sliding blocks 1605 are connected through the connecting plate 1608, the second transmission shaft 1606 is arranged on the sliding block close to the transmission turntable 1601, the first transmission shaft 1602 and the second transmission shaft 1606 are connected through the traction plate 1607, the connecting holes are arranged at both ends of the traction plate 1607, the first transmission shaft 1602 and the second transmission shaft 1606 penetrate the connecting holes and are rotationally connected, the connecting plate 1608 is provided with the connecting rod 1609, the transmission plate 1610 is arranged on the connecting rod 1609, the liquid permeation plate 1611 is slidably arranged in the work tank 1521, the sliding rod 1612 is arranged on the liquid permeation plate 1611, the sliding hole 1613 is arranged on the side of the work tank 1521 away from the crushing tank 1, the sliding rod 1612 penetrates the sliding hole 1613 and is connected with the transmission plate 1610, the liquid outlet 1614 is arranged on the side of the work tank 1521 close to the transmission plate 1610, the liquid collecting pipe 1615 is arranged on the liquid outlet 1614, the liquid collecting pipe 1615 is connected with 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 moves along the circular track through the transmission turntable 1601 during rotation, the sliding block 1605 moves horizontally and reciprocally in the slide 1604 under the traction of the traction plate 1607 composed of the first transmission shaft 1602, the second transmission shaft 1606 and the traction plate 1607, when the sliding block 1605 moves horizontally, the sliding block 1605 drives the transmission plate 1610 to move through the connecting plate 1608 and the connecting rod 1609, so that the transmission plate 1610 drives the liquid permeation plate 1611 to move synchronously through the sliding rod 1612, which is beneficial to the vibration and extrusion of the crushed plant raw materials in the work tank 1521 by the liquid permeation plate 1611, and facilitates the flow of the extracted liquid from the crushed plant raw materials through the liquid permeation plate 1611, when the liquid permeation plate 1611 resets synchronously with the resetting of the sliding block 1605, the liquid permeation plate 1611 pushes the plant extract into the liquid collecting pipe 1615 of the liquid outlet 1614, the plant extract is transported into the first extraction kettle 9 through the negative pressure pipe 1616 by the suction of the liquid collecting pipe 1615 by the liquid suction pipe 6, and the utilization rate of the plant raw materials is improved.

[0050] The negative pressure pipe 1616 is a one-way pipe, and a plurality of needles are arranged on the side of the liquid-permeating plate 1611 away from the slide rod 1612, so that the liquid-permeating plate 1611 can break the wall of the crushed raw material when vibrating the crushed raw material.

[0051] The extraction process of the multi-stage extraction equipment for plant extraction provided by the application comprises the following steps:

[0052] S1, plant raw materials are fed into the crushing box 1, and the crushing roller 2 is used to crush the plant raw materials to form plant extraction liquid;

[0053] S2, the plant extraction liquid is filtered by the filter screen 4;

[0054] S3, the delivery pump 5 is started to deliver the plant extraction liquid to the first extraction kettle 9;

[0055] S4, the heater 8 is started to make the plant essence vapor formed in the first extraction kettle 9 enter the second extraction kettle 11 through the pipeline 14 under the action of the suction pump 10;

[0056] S5, multi-stage extraction is formed by the second extraction kettle 11;

[0057] S6, after the condenser 12 is used to condense the vapor, the oil-liquid separator 13 is used to separate the plant juice.

[0058] The working principle of the application is as follows:

[0059] When plant extraction is needed, plant raw materials are fed into the crushing box 1, and the crushing roller 2 is used to crush the plant raw materials to form plant extraction liquid. The filter screen 4 below is used to intercept impurities and crushed raw materials in the extraction liquid, so that the purity of the plant extraction liquid can be improved. The plant extraction liquid can be delivered to the first extraction kettle 9 under the action of the delivery pump 5. At this time, the heater 8 is started to make the extraction liquid in the first extraction kettle 9 form plant essence under the action of heating. The plant essence enters the second extraction kettle 11 through the suction pump 10 to be extracted again, so that multi-stage extraction of the plant extraction liquid is realized. Finally, the plant essence in the second extraction kettle 11 is delivered to the condenser 12 through the pipeline 14, and then delivered to the oil-liquid separator 13 through the pipeline 14 after condensation, so that the plant essence is separated.

[0060] When the crushing roller 2 rotates, the transmission composed of the first connecting shaft 1502, the second connecting shaft 1505 and the push-pull rod 1503 can drive the linkage block 1504 to move longitudinally and reciprocally, and the reciprocating movement of the linkage block 1504 can drive the rotating column 1507 to move periodically in the counterclockwise direction along the ring rail 1506 through the driving member composed of the linkage block 1504, the push-pull plate 1509 and the transmission block 1508, so that the linkage block 1504 can drive the transmission gear 1512 to rotate counterclockwise through the gear plate 1510 during the movement, and when the transmission gear 1512 rotates, the transmission gear 1512 can drive the driven gear 1513 to rotate synchronously through the rotating shaft 1511, and 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, and through 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 raw materials on the surface of the filter screen 4 during the movement, so as to facilitate the discharge of the plant raw materials from the discharge port 1520, and 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 formation of crushed plant raw materials in the reverse orientation.

[0061] When the driving motor 3 operates, the electric telescopic rod 1524 can control the baffle 1525 to move out of the feed port 1522, so that the crushed plant raw materials falling from the discharge port 1520 can enter the working tank 1521 through the discharge pipe 1523, and when all the crushed plant raw materials on the filter screen 4 enter the working tank 1521, the electric telescopic rod 1524 controls the baffle 1525 to extend into the feed port 1522, thereby sealing the working tank 1521.

[0062] When the transmission gear 1512 rotates, the transmission gear 1512 can drive the transmission turntable 1601 to rotate synchronously, and through the transmission turntable 1601, the first transmission shaft 1602 is driven to move in a circular trajectory during rotation, so that the slider 1605 can be driven to move laterally and reciprocally in the slide 1604 under the traction of the traction piece composed of the first transmission shaft 1602, the second transmission shaft 1606 and the traction plate 1607. When the slider 1605 moves laterally, 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 drive the liquid permeation plate 1611 to move synchronously through the slide rod 1612, which is conducive to the liquid permeation plate 1611 to vibrate and extrude the crushed plant raw materials in the working tank 1521 again, so that the extracted liquid squeezed from the crushed plant raw materials can flow out through the liquid permeation plate 1611. When the liquid permeation plate 1611 is reset synchronously with the reset of the slider 1605, the liquid permeation plate 1611 can push the plant extract into the liquid collecting pipe 1615 of the liquid outlet 1614. The plant extract can be transported into the first extraction kettle 9 by the suction of the liquid collecting pipe 1615 through the negative pressure pipe 1616, so as to improve the utilization rate of the plant raw materials.

[0063] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments but can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the application being defined by the appended claims rather than by the above description, and it is intended that all changes which come within the meaning and range of equivalency of the claims are embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A multi-stage extraction device for plant extraction, characterized in that: The multi-stage extraction equipment for plant extraction includes a crushing bin (1), a heater (8), a first extraction vessel (9), a suction pump (10), a second extraction vessel (11), a condenser (12), an oil separator (13), and pipes (14). Two crushing rollers (2) are symmetrically rotated inside the crushing bin (1), and two drive motors (3) are installed on the crushing bin (1). The two drive motors (3) are respectively connected to the ends of the two crushing rollers (2) on the same side. A filter screen (4) is installed obliquely inside the crushing bin (1), and a conveying pump (5) is installed on the crushing bin (1). The conveying pump (5) is connected to... The crushing bin (1) is connected to the suction pipe (6), and the delivery pump (5) is connected to the first extraction vessel (9) through the delivery pipe (7). The first extraction vessel (9) is placed in the heater (8). A suction pump (10) is installed on the top of the first extraction vessel (9). The suction pump (10) is connected to the second extraction vessel (11) through the pipe (14). The second extraction vessel (11) is connected to the condenser (12) through the pipe (14). The condenser (12) is connected to the oil separator (13) through the pipe (14). A pipe (14) is installed on the output end of the oil separator (13). The shredder (1) is provided with a shredder removal assembly (15) and a shredder utilization assembly (16). The rotation of the shredder roller (2) provides the driving force for the shredder removal assembly (15) and the shredder utilization assembly (16), and realizes the coordinated operation of the shredder removal assembly (15) and the shredder utilization assembly (16). 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 toothed plate (1510), a rotating shaft (1511), and a transmission gear (1512). Both of the two crushing rollers (2) are equipped with transmission wheel discs (1501) at their ends away from the drive motor (3). A first connecting shaft (1502) is eccentrically mounted on the transmission wheel disc (1501). A push-pull rod (1503) is mounted on the first connecting shaft (1502). A linkage block (1504) is mounted on the other end of the push-pull rod (1503). A second connecting shaft (1505) is symmetrically mounted on the linkage block (1504). The second connecting shaft (1505) is connected to the first connecting shaft (1502) through the push-pull rod (1503). A push-pull plate (1509) is mounted on the bottom of the linkage block (1504). A transmission wheel is mounted on the bottom of the push-pull plate (1509). The transmission block (1508) has a rotating column (1507) rotatably mounted on it. The crushing box (1) has a ring rail (1506) on the side near the transmission wheel (1501). The rotating column (1507) is inserted into the ring rail (1506). The transmission block (1508) has a toothed plate (1510) mounted on it. The crushing box (1) has a rotating shaft (1511) rotatably mounted on the side near the ring rail (1506). The rotating shaft (1511) is located at the center of the ring rail (1506). The end of the rotating shaft (1511) near the toothed plate (1510) is equipped with a transmission gear (1512). The toothed plate (1510) meshes with the transmission gear (1512). 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 wiping plate (1519), and a discharge port (1520). A driven gear (1513) is installed at the other end of the rotating shaft (1511). Two sets of rotating gears (1514) are symmetrically installed in the crushing bin (1). A transmission chain (1515) is sleeved on the two rotating gears (1514) in the same set. The transmission chain (1515) near the rotating shaft (1511) meshes with the driven gear (1513). A connecting column (1516) is installed on the opposite surface of the two transmission chains (1515). A linkage plate (1517) is rotatably installed on the two connecting columns (1516). 7) is equipped with a connecting rod (1518) at the bottom, 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). The discharge port (1520) is located at the lowest point of the filter screen (4). During the rotation of the transmission chain (1515), it drives the connecting column (1516) to move along the keyway. The transmission chain (1515) is parallel to the filter screen (4). When the connecting column (1516) is in the lower path of the keyway, the wiping plate (1519) contacts the upper surface of the filter screen (4). The lower part of the crushing bin (1) near the discharge port (1520) is equipped with a working box (1521). The upper part of the working box (1521) is provided with a feed port (1522) on the side of the crushing bin (1). The discharge port (1520) and the feed port (1522) are connected by a discharge pipe (1523). The top of the discharge pipe (1523) is provided with an electric telescopic rod (1524). A baffle (1525) is installed on the electric telescopic rod (1524). The baffle (1525) is located inside the feed port (1522), and the baffle (1525) is the same size as the feed port (1522). The material utilization component (16) includes a transmission turntable (1601), a first transmission shaft (1602), a fixed plate (1603), a slide rail (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 seepage plate (1611), a slide rod (1612), a sliding hole (1613), a liquid outlet (1614), a liquid collection pipe (1615), and a negative pressure pipe (1616). A transmission turntable (1601) is mounted on the transmission gear (1512). A first transmission shaft (1602) is eccentrically mounted on the transmission turntable (1601). Two fixing plates (1603) are symmetrically mounted on the side of the crushing bin (1) near the working box (1521). A slide rail (1604) is provided on the fixing plate (1603). A slider (1605) is slidably mounted in the slide rail (1604). The slider (1605) is connected by a connecting plate (1608). A second transmission shaft (1606) is mounted on the slider (1605) near the transmission turntable (1601). The first transmission shaft (1602) and the second transmission shaft (1606) are connected by 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 by a traction plate (1607). All the moving shafts (1606) pass through the connecting holes and are rotatably fitted. A connecting rod (1609) is installed at the bottom of the connecting plate (1608). A transmission plate (1610) is installed on the connecting rod (1609). A seepage plate (1611) is slidably installed inside the working box (1521). A sliding rod (1612) is installed on the seepage plate (1611). A sliding hole (1613) is opened on the side of the working box (1521) away from the crushed material box (1). The sliding rod (1612) passes through the sliding hole (1613) and is connected to the transmission plate (1610). A liquid outlet (1614) is opened on the bottom of the working box (1521) near the transmission plate (1610). A liquid collection pipe (1615) is installed on the liquid outlet (1614). The liquid collection pipe (1615) is connected to the suction pipe (6) through a negative pressure pipe (1616). The negative pressure pipe (1616) is a one-way pipe, and multiple needles are installed on the side of the seepage plate (1611) away from the slide bar (1612).

2. The multi-stage extraction device for plant extraction according to claim 1, characterized in that: Both ends of the push-pull rod (1503) are provided with through holes. The first connecting shaft (1502) and the second connecting shaft (1505) pass through the through holes and are rotatably coupled. Both ends of the push-pull plate (1509) are respectively hinged to the linkage block (1504) and the transmission block (1508).

3. An extraction process for a multi-stage extraction device for plant extraction, applicable to the multi-stage extraction device for plant extraction as described in any one of claims 1-2, characterized in that, The process includes the following steps: S1. Feed the plant raw materials into the crushing box (1) and crush the plant raw materials with the crushing roller (2) to form plant extract; S2. The plant extract is filtered through a filter screen (4); S3. Start the delivery pump (5) to deliver the plant extract to the first extraction vessel (9); S4. Start the heater (8) so that the plant essence vapor formed in the first extraction vessel (9) can enter the second extraction vessel (11) through the pipe (14) under the action of the suction pump (10); S5. Multi-stage extraction is formed through the second extraction vessel (11); S6. After the steam is condensed by the condenser (12), the plant juice can be separated by the oil separator (13).

Images