Plant extraction equipment with solvent residue cleaning function

Abstract

The invention discloses plant extraction equipment with a solvent residue cleaning function, and relates to the technical field of plant extraction.The plant extraction equipment comprises an extraction assembly and an extraction tank, a treatment part is arranged on the outer side of the extraction tank, and a driving part is installed at the top of the extraction tank; the stirring assembly is arranged in the extraction tank and comprises a movable rod rotationally connected into the extraction tank, stirring blades are fixed to the outer ring of the movable rod, a positioning rod is rotationally connected into the movable rod, and the positioning rod is sleeved with a first cleaning frame. The cleaning device has the beneficial effects that through the arrangement of the stirring assembly and the integrated part, a cleaning reagent can be fed in through back flushing, the cleaning effect is guaranteed, meanwhile, the extraction assembly is linked to conduct locking operation in the back flushing process, manual operation is not needed, when the cleaning reagent is not fed any more, the extraction assembly can also be automatically unlocked, and waste liquid is gradually discharged; the manual intervention rate is greatly reduced, and the overall operation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of plant extraction, in particular to plant extraction equipment with a solvent residue cleaning function. Background Art

[0002] Plant extraction is the process of separating and enriching active ingredients from plants using physical, chemical or biological techniques. It is widely used in the fields of medicine, food, cosmetics and environmental protection. Among solvent extraction equipment, the extraction tank is a commonly used device, which is equipped with a stirring structure to ensure processing efficiency.

[0003] During the processing of plant extraction equipment in the prior art, in order to avoid solvent residue affecting the quality of subsequent product processing, the equipment is flushed with special reagents. However, the simple spray cleaning treatment can only remove the light solvent on the surface of the components, and cannot scrape the impurities attached to the inner wall of the equipment. At the same time, manual operation is required to lock-clean-unlock, inject, mix and then discharge the detergent. The overall operation is relatively cumbersome, affecting the overall processing efficiency. Summary of the Invention

[0004] In view of the above problems existing in the existing plant extraction equipment with solvent residue cleaning function, the present invention is proposed.

[0005] Therefore, the problem to be solved by the present invention is that the simple spray cleaning treatment in the plant extraction equipment in the prior art can only remove the light solvent on the surface of the parts, and cannot scrape the impurities attached to the inner wall of the equipment. At the same time, manual operation is required to lock-clean-unlock, and the overall operation is relatively cumbersome, affecting the overall processing efficiency.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a plant extraction device with a solvent residue cleaning function, comprising:

[0007] An extraction assembly includes an extraction tank, a processing member is provided on the outside of the extraction tank, and a driving member is installed on the top of the extraction tank; and

[0008] A stirring assembly is provided in the extraction tank, comprising a movable rod rotatably connected to the extraction tank, a stirring blade being fixed to the outer ring of the movable rod, a positioning rod being rotatably connected to the inner side of the movable rod, a first cleaning frame being sleeved on the positioning rod, an impeller being fixed to the bottom of the positioning rod, a filter being fixed to the bottom of the inner cavity of the extraction tank, and an auxiliary cylinder being fixed to the bottom of the stirring blade;

[0009] An integrated component is arranged at the bottom of the extraction tank, including a collecting bucket located at the bottom of the extraction tank, a plunger valve is fixed to the bottom of the collecting bucket, a first valve stem is slidably connected to the plunger valve, a connecting rod is fixed to the other end of the first valve stem, a reflux pipe is rotatably connected to the bottom of the inner cavity of the auxiliary cylinder, a pressure relief valve is fixed to the bottom of the reflux pipe, a second valve stem is slidably connected to the pressure relief valve, a connecting seat is fixed to the other end of the second valve stem, and a rotating plate is arranged between the connecting seat and the connecting rod.

[0010] As a preferred solution of the plant extraction equipment with solvent residue cleaning function of the present invention, the outer ring of the movable rod is provided with microholes, and the movable rod is vertically provided with a displacement groove, which is slidably matched with the first cleaning frame.

[0011] As a preferred solution of the plant extraction equipment with solvent residue cleaning function described in the present invention, a spiral groove is provided on the positioning rod, and a round ball is fitted in the inner circle gap of the first cleaning frame and slides in the spiral groove.

[0012] As a preferred solution of the plant extraction equipment with solvent residue cleaning function described in the present invention, a spiral blade is fixed at the bottom of the outer ring of the positioning rod, the spiral blade is located in the auxiliary tube, a drainage hole is opened through the outer ring of the auxiliary tube, and a second cleaning rack is fixed to the outer ring of the auxiliary tube.

[0013] As a preferred solution of the plant extraction equipment with solvent residue cleaning function described in the present invention, the reflux pipe passes through the collecting bucket and is fixedly connected to the collecting bucket, a fixing frame is fixed to the bottom of the reflux pipe, the rotating plate is rotatably connected to the fixing frame, and a through groove is provided on the rotating plate.

[0014] As a preferred solution of the plant extraction equipment with solvent residue cleaning function described in the present invention, wherein: a first positioning head is fixed on the connecting rod, and a second positioning head is fixed on the connecting seat, and the first positioning head and the second positioning head both extend into the through groove and are slidably connected to the through groove.

[0015] As a preferred solution of the plant extraction equipment with solvent residue cleaning function described in the present invention, a feeding valve is fixed on the top of the extraction tank, a discharge valve is fixed on the bottom of the outer ring of the extraction tank, a drainage head is opened at the center of the bottom of the extraction tank, and the collecting hopper is fixed in the drainage head.

[0016] As a preferred solution of the plant extraction equipment with solvent residue cleaning function described in the present invention, wherein: a first bracket is fixed to the outside of the extraction tank, a pressure gauge is installed on the extraction tank, a second bracket is fixed to the top of the extraction tank, the driving member is fixed on the second bracket, and a control box is fixed on the second bracket.

[0017] As a preferred solution of the plant extraction equipment with solvent residue cleaning function described in the present invention, the processing part includes a transmission cylinder fixed on the second bracket, a heat exchange tube is fixed in the transmission cylinder, the top of the transmission cylinder is connected to an injection pipe, and the bottom of the injection pipe is connected to a three-way valve.

[0018] As a preferred solution of the plant extraction equipment with solvent residue cleaning function described in the present invention, the end of the injection pipe away from the transmission cylinder is connected to the external material pump, and both ends of the heat exchange pipe pass through the outside of the transmission cylinder.

[0019] The beneficial effects of the present invention are as follows: through the arrangement of the stirring assembly and the integrated parts, the integrated parts can meet the demand for the introduction of cleaning reagents, achieve the purpose of backflushing cleaning, and ensure the cleaning effect. At the same time, during the backflushing process, the extraction assembly is linked to perform a locking operation without manual operation. When the cleaning is completed and the reagent is no longer introduced, the extraction assembly will automatically unlock and gradually discharge the waste liquid, greatly reducing the human intervention rate, not only improving the overall operating efficiency, but also enhancing the operational safety by reducing the risk of human contact with corrosive reagents. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 This is a structural diagram of plant extraction equipment with solvent residue cleaning function.

[0022] Figure 2 A cross-sectional view of a plant extraction device with a solvent residue cleaning function.

[0023] Figure 3 A half-section view of the extraction tank of a plant extraction device with a solvent residue cleaning function.

[0024] Figure 4 This is a structural diagram of the stirring component of plant extraction equipment with solvent residue cleaning function.

[0025] Figure 5 This is a separation diagram of the stirring component of plant extraction equipment with solvent residue cleaning function.

[0026] Figure 6 For plant extraction equipment with solvent residue cleaning function Figure 5 Enlarged view of point A in the middle.

[0027] Figure 7A half-section view of the auxiliary barrel of a plant extraction device with a solvent residue cleaning function.

[0028] Figure 8 This is a front view of an integrated component of a plant extraction device with a solvent residue cleaning function.

[0029] In the figure: 1. Extraction component; 11. Extraction tank; 11-1. Feeding valve; 11-2. Discharge valve; 11-3. Discharge head; 12. Processing unit; 12-1. Transmission cylinder; 12-2. Heat exchange tube; 12-3. Injection pipe; 12-4. Three-way valve; 13. Driving unit; 14. First bracket; 15. Pressure gauge; 16. Second bracket; 17. Control box; 2. Stirring component; 21. Movable rod; 21-1. Micropore; 21-2. Displacement groove; 22. Stirring blade; 23. First cleaning rack; 23-1. Ball ;24. Filter screen;25. Auxiliary cylinder;25-1. Drain hole;26. Second cleaning rack;27. Positioning rod;27-1. Spiral groove;28. Spiral blade;29. Impeller;3. Integrated component;31. Collecting bucket;32. Plunger valve;32-1. First valve stem;32-2. Connecting rod;32-21. First positioning head;33. Backflow pipe;34. Pressure relief valve;34-1. Second valve stem;34-2. Connecting seat;34-21. Second positioning head;35. Fixed rack;36. Turn plate;36-1. Through groove. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive of other embodiments.

[0033] Example 1

[0034] Reference Figure 1 and Figure 2, which is the first embodiment of the present invention, provides a plant extraction equipment with a solvent residue cleaning function. The plant extraction equipment with a solvent residue cleaning function includes an extraction component 1, a stirring component 2 and an integrated component 3. Through the arrangement of the stirring component 2 and the integrated component 3, the integrated component 3 can perform backflushing cleaning to ensure the cleaning effect. At the same time, during the backflushing process, the extraction component 1 is linked to perform a locking operation without manual operation. When the cleaning is completed and the reagent is no longer introduced, the extraction component 1 will automatically unlock and gradually discharge the waste liquid, greatly reducing the human intervention rate, not only improving the overall operating efficiency, but also enhancing the operating safety by reducing the risk of human contact with corrosive reagents.

[0035] Specifically, the extraction assembly 1 includes an extraction tank 11 , a processing component 12 is provided on the outside of the extraction tank 11 , and a driving component 13 is installed on the top of the extraction tank 11 .

[0036] The driving member 13 is composed of a motor fixed on the second bracket 16 and a reducer fixed on the second bracket 16, wherein the output end of the motor is installed in the input end of the reducer, and the top of the stirring component 2 is installed in the input end of the reducer. This design can well ensure the rotational stability of the stirring component 2. The working principle of this part is all existing technology, which can be clearly understood by those skilled in the art and will not be elaborated here.

[0037] Specifically, the stirring assembly 2 is arranged in the extraction tank 11, and includes a movable rod 21 rotatably connected to the extraction tank 11, a stirring blade 22 is fixed to the outer ring of the movable rod 21, a positioning rod 27 is rotatably connected to the movable rod 21, a first cleaning frame 23 is sleeved on the positioning rod 27, an impeller 29 is fixed to the bottom of the positioning rod 27, a filter screen 24 is fixed to the bottom of the inner cavity of the extraction tank 11, and an auxiliary cylinder 25 is fixed to the bottom of the stirring blade 22.

[0038] The filter 24 is made of 316L stainless steel, with a mesh size of 0.2mm×0.2mm, a filtration efficiency ≥90%, and a temperature resistance ≤120°C. The filter 24 can filter the materials in the plant extraction process to achieve the purpose of separation and meet the subsequent further purification and processing needs.

[0039] The movable rod 21 is hollow in design to provide installation space for the positioning rod 27 .

[0040] Specifically, the integrated component 3 is arranged at the bottom of the extraction tank 11, including a collecting bucket 31 located at the bottom of the extraction tank 11, a plunger valve 32 is fixed to the bottom of the collecting bucket 31, a first valve stem 32-1 is slidably connected to the plunger valve 32, a connecting rod 32-2 is fixed to the other end of the first valve stem 32-1, a reflux pipe 33 is rotatably connected to the bottom of the inner cavity of the auxiliary cylinder 25, a pressure relief valve 34 is fixed to the bottom of the reflux pipe 33, a second valve stem 34-1 is slidably connected to the pressure relief valve 34, a connecting seat 34-2 is fixed to the other end of the second valve stem 34-1, and a rotating plate 36 is provided between the connecting seat 34-2 and the connecting rod 32-2.

[0041] The shape of the collecting bucket 31 is as shown in the accompanying drawings of the specification. Figure 8 As shown, its top end is matched with the bottom end of the extraction tank 11, and the bottom bucket design thereof can be used to centrally drain the liquid and discharge it through the plunger valve 32.

[0042] The shape of the reflux pipe 33 is as shown in the accompanying drawings. Figure 8 As shown, its top end is adapted to the bottom end of the auxiliary cylinder 25 , and is used to back-flush the cleaning reagent into the auxiliary cylinder 25 after it is transferred through the pressure relief valve 34 and the backflow pipe 33 .

[0043] The reflux tube 33 is connected to the auxiliary cylinder 25 through a sealed bearing, which not only meets the flexible rotation requirement of the auxiliary cylinder 25 but also prevents the reagent from leaking randomly.

[0044] Example 2

[0045] Reference Figures 2 to 8 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0046] Specifically, a micro hole 21 - 1 is formed on the outer ring of the movable rod 21 , and a displacement groove 21 - 2 is vertically formed on the movable rod 21 and is slidably matched with the first cleaning frame 23 .

[0047] There are several micro holes 21 - 1 evenly distributed on the movable rod 21 and connected to the inner cavity of the movable rod 21 . Meanwhile, the micro holes 21 - 1 and the displacement grooves 21 - 2 are staggered to avoid mutual influence between them.

[0048] The first cleaning frame 23 can be guided to move up and down by the displacement groove 21 - 2 . When the movable rod 21 rotates, the first cleaning frame 23 also rotates, thereby effectively cleaning the inner wall of the extraction tank 11 .

[0049] A spiral groove 27 - 1 is formed on the positioning rod 27 , and a round ball 23 - 1 is fitted in the inner circle of the first cleaning frame 23 and is slidably fitted in the spiral groove 27 - 1 .

[0050] The cooperation between the ball 23 - 1 and the spiral groove 27 - 1 can guide the first cleaning frame 23 to move up and down when the positioning rod 27 actively rotates, so that the first cleaning frame 23 cleans the inner wall of the extraction tank 11 .

[0051] A spiral blade 28 is fixed to the bottom of the outer ring of the positioning rod 27. The spiral blade 28 is located in the auxiliary tube 25. A drainage hole 25-1 is opened through the outer ring of the auxiliary tube 25. A second cleaning frame 26 is fixed to the outer ring of the auxiliary tube 25.

[0052] The spiral blade 28 can assist in the upward flow of the cleaning agent during forward rotation, and assist in the downward transmission and discharge of the agent during reverse rotation.

[0053] The drainage hole 25-1 is located at a lower position of the outer ring of the auxiliary tube 25 and is designed to be higher than the impeller 29. It is used to connect the space inside the auxiliary tube 25 with the space inside the extraction tank 11 to avoid solvent retention in the auxiliary tube 25. At the same time, the position design will not affect the operation of the impeller 29.

[0054] The reflux pipe 33 passes through the collecting bucket 31 and is fixedly connected to the collecting bucket 31 . A fixing frame 35 is fixed to the bottom of the reflux pipe 33 . A rotating plate 36 is rotatably connected to the fixing frame 35 . A through slot 36 - 1 is formed on the rotating plate 36 .

[0055] A first positioning head 32-21 is fixed on the connecting rod 32-2, and a second positioning head 34-21 is fixed on the connecting seat 34-2. The first positioning head 32-21 and the second positioning head 34-21 both extend into the through slot 36-1 and are slidably connected to the through slot 36-1.

[0056] Through the design of the second valve stem 34-1, the connecting seat 34-2, the first valve stem 32-1, the connecting rod 32-2, the rotating plate 36 and the through slot 36-1, when the pressure relief valve 34 is in a pressure relief operation, the second valve stem 34-1 can produce a linear displacement, driving the connecting seat 34-2 to move, and the inclination angle of the rotating plate 36 is adjusted by the second positioning head 34-21 and the through slot 36-1. Then, with the cooperation of the first positioning head 32-21 and another through slot 36-1, the connecting rod 32-2 pulls the first valve stem 32-1 outward to achieve the closure of the plunger valve 32.

[0057] Similarly, when no cleaning agent flows into the pressure relief valve 34, the pressure relief valve 34 is automatically closed, the second valve stem 34-1 is reset, and after a series of transmissions, the first valve stem 32-1 is moved inward and reset, and the plunger valve 32 is in an open state.

[0058] The opening pressure of the pressure relief valve 34 is 0.5 MPa. When it is opened, the second valve stem 34 - 1 is displaced by 15 mm, and the plunger valve 32 is closed through the rotation plate 36 , and the closing time is ≤ 1 s.

[0059] A feeding valve 11 - 1 is fixed on the top of the extraction tank 11 , a discharge valve 11 - 2 is fixed on the bottom of the outer ring of the extraction tank 11 , a drainage head 11 - 3 is opened at the center of the bottom of the extraction tank 11 , and a collecting hopper 31 is fixed in the drainage head 11 - 3 .

[0060] A first bracket 14 is fixed outside the extraction tank 11 , a pressure gauge 15 is installed on the extraction tank 11 , a second bracket 16 is fixed on the top of the extraction tank 11 , the driving member 13 is fixed on the second bracket 16 , and a control box 17 is fixed on the second bracket 16 .

[0061] The processing unit 12 includes a transmission cylinder 12-1 fixed on the second bracket 16. A heat exchange tube 12-2 is fixed in the transmission cylinder 12-1. The top of the transmission cylinder 12-1 is connected to an injection pipe 12-3. The bottom of the injection pipe 12-3 is connected to a three-way valve 12-4.

[0062] The end of the liquid injection pipe 12-3 away from the transmission cylinder 12-1 is connected to the external material pump, and both ends of the heat exchange pipe 12-2 pass through the outside of the transmission cylinder 12-1.

[0063] The processing element 12 is configured to cooperate with an external pump and a cold source or a heat source to perform heat exchange treatment on the material introduced into the transmission cylinder 12-1 through the injection pipe 12-3, thereby achieving the purpose of pre-cooling or pre-heating.

[0064] During use, the material is added through the feeding valve 11-1, and the solvent is processed by the processing component 12 and then injected into the feeding valve 11-1. At the same time, the inert gas is injected into the extraction tank 11 from the integrated component 3 and enters the solution in the extraction tank 11 to accelerate the reaction. Then the driving component 13 is controlled to work, driving the stirring component 2 to rotate to complete the stirring process, and then the high pressure state is stopped to finally discharge the reagent after the extraction reaction is completed.

[0065] In the above process, when the gas phase is introduced into the extraction tank 11 through the pressure relief valve 34, the reflux pipe 33, the auxiliary cylinder 25 and the movable rod 21, the first valve stem 32-1 is in an outward state, the plunger valve 32 is in a closed state, and the gas phase and the liquid phase material are combined to form bubbles. The movable rod 21, the stirring blade 22 and the second cleaning rack 26 are driven by the driving member 13 to rotate continuously, and the overall reaction rate is better. At the same time, some inert gas is directly sprayed on the inner wall of the extraction tank 11 to reduce the amount of solvent adhesion.

[0066] After the reaction is completed, the inert gas is no longer introduced, the pressure relief valve 34 closes naturally, the second valve stem 34 - 1 is reset to reset the plunger valve 32, and the plunger valve 32 is open. The reacted material is filtered through the filter screen 24, collected in the collecting hopper 31, and discharged from the plunger valve 32.

[0067] When backflushing cleaning is required, it is only necessary to connect the centrifugal pump to the pressure relief valve 34, and continuously introduce the cleaning agent through the pressure relief valve 34. After being transmitted through the backflow pipe 33, it is placed in the auxiliary cylinder 25. With the cooperation of the impeller 29, the positioning rod 27 and the spiral blade 28 are driven to rotate. The rotating positioning rod 27 uses its own spiral groove 27-1 to cooperate with the ball 23-1, so that the first cleaning frame 23 can move up and down in the displacement groove 21-2. At this time, the synchronous control drive member 13 works, so that the first cleaning frame 23 can move in a circular motion while moving up and down, so that the inner wall of the extraction tank 11 can be well cleaned, and the cleaning agent is sprayed out through the drainage hole 25-1, the micropore 21-1 and the displacement groove 21-2 to ensure cleaning uniformity.

[0068] After cleaning is completed, the solvent is no longer injected through the pressure relief valve 34, and the plunger valve 32 opens automatically to drain the waste liquid, which greatly simplifies manual operation, better meets the actual efficient processing needs, and meets the efficient processing needs of plant extraction.

[0069] Example 3

[0070] Reference Figures 2 to 8 , which is the third embodiment of the present invention, is based on the first two embodiments.

[0071] Specifically, the first cleaning rack 23 includes an outer shell made of polytetrafluoroethylene and a built-in counterweight. The material design of the outer shell has extremely strong chemical stability: it is resistant to strong acids, strong alkalis, strong oxidants and organic solvents, and is almost unreactive, and is well suited for the plant extraction processing needs in the extraction tank 11; it is resistant to high and low temperatures: it can be used for a long time at -200℃~260℃, does not decompose at high temperatures, and does not become brittle at low temperatures, meeting the heating environment requirements during plant extraction; it has super non-stickiness: the surface friction coefficient is extremely low, and it almost does not adhere to any substance, which can prevent the first cleaning rack 23 from being contaminated with solvents or impurities during the cleaning process.

[0072] The internal counterweight design of the first cleaning frame 23 allows the first cleaning frame 23 to naturally fall back to its original position when there is no reagent backwash and the processed material in the extraction tank 11 is discharged. In addition, due to the cooperation between the ball 23-1 and the spiral groove 27-1, the positioning rod 27 will gradually reverse, which is conducive to the discharge of the cleaning reagent in conjunction with the spiral blade 28.

[0073] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A plant extraction device with a solvent residue cleaning function, characterized in that: include, An extraction assembly (1) comprises an extraction tank (11), a processing member (12) is provided on the outside of the extraction tank (11), and a driving member (13) is installed on the top of the extraction tank (11); and A stirring assembly (2) is arranged in the extraction tank (11), comprising a movable rod (21) rotatably connected to the extraction tank (11), a stirring blade (22) being fixed to the outer ring of the movable rod (21), a positioning rod (27) being rotatably connected to the inside of the movable rod (21), a first cleaning frame (23) being sleeved on the positioning rod (27), an impeller (29) being fixed to the bottom of the positioning rod (27), a filter screen (24) being fixed to the bottom of the inner cavity of the extraction tank (11), and an auxiliary cylinder (25) being fixed to the bottom of the stirring blade (22); The integrated component (3) is arranged at the bottom of the extraction tank (11), and includes a collecting bucket (31) located at the bottom of the extraction tank (11), a plunger valve (32) is fixed at the bottom of the collecting bucket (31), a first valve stem (32-1) is slidably connected to the plunger valve (32), a connecting rod (32-2) is fixed to the other end of the first valve stem (32-1), a reflux pipe (33) is rotatably connected to the bottom of the inner cavity of the auxiliary cylinder (25), a pressure relief valve (34) is fixed to the bottom of the reflux pipe (33), a second valve stem (34-1) is slidably connected to the pressure relief valve (34), a connecting seat (34-2) is fixed to the other end of the second valve stem (34-1), and a rotating plate (36) is provided between the connecting seat (34-2) and the connecting rod (32-2).

2. The plant extraction device with solvent residue cleaning function according to claim 1, characterized in that: The outer ring of the movable rod (21) is provided with a micro hole (21-1), and the movable rod (21) is vertically provided with a displacement groove (21-2) which is slidably matched with the first cleaning frame (23).

3. The plant extraction device with solvent residue cleaning function according to claim 2, characterized in that: A spiral groove (27-1) is provided on the positioning rod (27), and a round ball (23-1) is fitted in the inner circle gap of the first cleaning frame (23) and is slidably fitted with the spiral groove (27-1).

4. The plant extraction device with solvent residue cleaning function according to claim 3, characterized in that: A spiral blade (28) is fixed at the bottom of the outer ring of the positioning rod (27), and the spiral blade (28) is located in the auxiliary tube (25). A drainage hole (25-1) is opened through the outer ring of the auxiliary tube (25), and a second cleaning frame (26) is fixed to the outer ring of the auxiliary tube (25).

5. The plant extraction device with solvent residue cleaning function according to claim 4, characterized in that: The reflux pipe (33) passes through the collecting bucket (31) and is fixedly connected to the collecting bucket (31). A fixing frame (35) is fixed to the bottom of the reflux pipe (33). The rotating plate (36) is rotatably connected to the fixing frame (35). A through slot (36-1) is provided on the rotating plate (36).

6. The plant extraction device with solvent residue cleaning function according to claim 5, characterized in that: A first positioning head (32-21) is fixed on the connecting rod (32-2), and a second positioning head (34-21) is fixed on the connecting seat (34-2). Both the first positioning head (32-21) and the second positioning head (34-21) extend into the through slot (36-1) and are slidably connected to the through slot (36-1).

7. The plant extraction device with solvent residue cleaning function according to claim 6, characterized in that: A feeding valve (11-1) is fixed on the top of the extraction tank (11), a discharge valve (11-2) is fixed on the bottom of the outer ring of the extraction tank (11), a liquid discharge head (11-3) is provided at the center of the bottom of the extraction tank (11), and the collecting hopper (31) is fixed in the liquid discharge head (11-3).

8. The plant extraction device with solvent residue cleaning function according to claim 7, characterized in that: A first bracket (14) is fixed outside the extraction tank (11), a pressure gauge (15) is installed on the extraction tank (11), a second bracket (16) is fixed on the top of the extraction tank (11), the driving member (13) is fixed on the second bracket (16), and a control box (17) is fixed on the second bracket (16).

9. The plant extraction device with solvent residue cleaning function according to claim 8, characterized in that: The processing unit (12) comprises a transmission cylinder (12-1) fixed on a second bracket (16), a heat exchange tube (12-2) being fixed in the transmission cylinder (12-1), a liquid injection tube (12-3) being connected at the top of the transmission cylinder (12-1), and a three-way valve (12-4) being connected at the bottom of the liquid injection tube (12-3).

10. The plant extraction equipment with solvent residue cleaning function according to claim 9, characterized in that: One end of the liquid injection pipe (12-3) away from the transmission cylinder (12-1) is connected to an external material pump, and both ends of the heat exchange pipe (12-2) pass through the outside of the transmission cylinder (12-1).

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