A device and method for the global stereoscopic extraction of edible oils
By employing dynamic disturbance and self-cleaning design in the edible oil three-dimensional extraction device, the problem of poor mass transfer uniformity in traditional solvent leaching processes is solved, thereby improving the oil extraction recovery rate and equipment efficiency.
Patent Information
- Application Number
- CN202611344203.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-09-01
- Publication Date
- 2026-11-06
AI Technical Summary
In traditional solvent leaching processes, static stacking of the raw material bed leads to poor mass transfer uniformity, making it difficult to fully dissolve deep oils, resulting in high residual oil rates and limited oil extraction and recovery rates.
The device employs a three-dimensional extraction system for edible oils. Through the coordinated design of the inner and outer extraction cylinders and dynamic disturbance components, it achieves three-dimensional disturbance of the raw material and uniform solvent penetration. Combined with the linkage slider structure on the inner wall of the inner cylinder, it achieves self-cleaning.
It improves the oil extraction recovery rate and batch extraction quality consistency, simplifies equipment configuration, and reduces operation and maintenance costs.
Smart Images
Figure CN123042769A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of edible oil processing technology, specifically to a three-dimensional extraction device and method for edible oil. Background Technology
[0002] Solvent extraction is currently the mainstream process for the industrial production of vegetable oils. The production process is based on a continuous series of steps including pretreatment, solid-liquid mass transfer extraction, and mixed oil separation and purification, achieving large-scale and efficient oil extraction. The oilseeds undergo impurity removal, crushing, rolling, and conditioning to break down the dense cellular structure and improve solvent penetration and mass transfer performance, creating favorable conditions for subsequent solvent-based oil extraction. The pretreated material is then fed into the extraction equipment. Based on the principle of "like dissolves like," the oil continuously diffuses and precipitates from within the oilseeds, resulting in two products after solid-liquid separation: a mixed oil and a wet meal. The resulting mixed oil then undergoes a multi-stage process involving precision impurity removal, negative pressure evaporation, and stripping to achieve solvent recovery and reuse, as well as oil separation and purification, completing the entire continuous oil extraction process.
[0003] In traditional leaching processes, the feedstock bed remains statically packed, with no relative movement of material particles and a fixed solid-liquid interface. Upon contact with the feedstock surface, the solvent rapidly reaches oil saturation, forming a saturated liquid film. This causes a rapid decay of the interfacial concentration gradient and a continuous decrease in mass transfer driving force. Because there is no mechanism for dynamic disturbance to break the film and renew the contact interface, the saturated liquid film remains attached to the feedstock surface for a long time, hindering the penetration of fresh solvent into the feedstock's internal pores and inhibiting the outward diffusion and migration of oil from within the feedstock. These defects result in poor leaching uniformity during the extraction process, making it difficult to fully dissolve oil from deeper feedstock layers. Ultimately, this leads to a high residual oil content in the meal, limiting oil extraction recovery and resource utilization. Summary of the Invention
[0004] The purpose of this invention is to provide a three-dimensional extraction device and method for edible oils. In the prior art, the raw material bed is statically stacked and lacks dynamic disturbance, and a saturated liquid film easily forms on the surface of the raw material, which hinders the mass transfer process. The invention proposes a solution that can optimize the mass transfer conditions to form a uniform raw material leaching effect and improve the oil extraction and recovery rate.
[0005] This invention is achieved through the following technical solution: A three-dimensional extraction device for edible oil includes: a support frame; an extraction outer cylinder mounted on the support frame, with a liquid inlet cap detachably mounted at the top and a liquid outlet cap detachably mounted at the bottom; an extraction inner cylinder extending through the extraction outer cylinder, rotating in conjunction with it, with multiple permeation holes on the inner wall of the inner cylinder within the outer cylinder, a feeding cap detachably mounted at one end and a discharge cap detachably mounted at the other end; and a drive assembly that drives the inner cylinder to rotate, causing dynamic tumbling and disturbance of the material inside the inner cylinder.
[0006] Furthermore, in this invention, a sliding guide shaft is radially mounted inside the extraction inner cylinder, and a sliding bushing is slidably fitted on the sliding guide shaft; supports are arranged on both sides of the extraction inner cylinder, and a disturbance component is mounted on each support. The disturbance component passes through the extraction inner cylinder at least partially and is connected to the sliding bushing; wherein, when the extraction inner cylinder rotates, it can drive the sliding bushing to slide back and forth along the sliding guide shaft, thereby causing the disturbance component to dynamically disturb the material.
[0007] Furthermore, in this invention, the aforementioned disturbance component includes: a supporting rotating shaft, which is rotatably mounted on a support and passes through the end of the extraction outer cylinder; an eccentric swing arm, one end of which is rotatably fitted onto the supporting rotating shaft, and the other end of which has a ball socket; a ball head, which is hingedly fitted inside the ball socket; a compensating swing shaft, one end of which is connected to the ball head, and the other end of which is connected to a sliding bushing; and multiple disturbance wing plates, which are respectively mounted on the compensating swing shaft. The rotation of the extraction inner cylinder drives the sliding bushing to rotate synchronously, and the eccentric swing arm transmits constraints through the compensating swing shaft, driving the sliding bushing to reciprocate and compensate along the sliding guide shaft.
[0008] Furthermore, in this invention, the inner wall of the extraction inner cylinder is provided with an annular groove along the circumferential direction; both ends of the sliding guide shaft are respectively equipped with linkage slide bodies, and the linkage slide bodies are at least partially slidably embedded in the annular groove. Linkage liner wings are respectively provided on both sides of the exposed part of the linkage slide body in the annular groove; a disengagement assembly is installed in the annular groove; wherein, under disturbance conditions, the extraction inner cylinder rotates in the forward direction, the disengagement assembly abuts against the linkage slide body, and the disengagement assembly pushes the sliding guide shaft to rotate synchronously; under cleaning conditions, the extraction inner cylinder rotates in the reverse direction, the disengagement assembly disengages from the linkage slide body, and the extraction inner cylinder rotates relative to the linkage liner wings.
[0009] Furthermore, in this invention, the aforementioned engagement / disengagement assembly includes: a sliding channel disposed on the inner wall of an annular sliding groove; an engagement / disengagement slider, at least partially slidably assembled inside the sliding channel, with a guide slope on one side and a pressure-bearing plane on the other side; and a first elastic element disposed within the sliding channel, one end of which is connected to the inner wall of the sliding channel, and the other end of which is connected to the engagement / disengagement slider; wherein, when the extraction inner cylinder rotates forward, the pressure-bearing plane pushes the linkage slide body to transmit rotational torque; when the extraction inner cylinder rotates in the reverse direction, the linkage slide body squeezes the guide slope, causing the engagement / disengagement slider to retract and avoid the collision.
[0010] Furthermore, in this invention, the outer wall of the aforementioned linkage liner is covered with an elastic pad layer.
[0011] Furthermore, in this invention, the aforementioned driving assembly includes: a driven gear ring, which is fixedly fitted onto the end of the extraction inner cylinder; a driving gear, which meshes with the driven gear ring for transmission; and a driving motor, the output shaft of which is connected to the driving gear.
[0012] Secondly, a method for three-dimensional extraction of edible oil includes the following steps: filling the raw material into the inner extraction cylinder, introducing extraction solvent into the interlayer cavity between the outer extraction cylinder and the inner extraction cylinder, and allowing the extraction solvent to permeate into the raw material through a permeation hole; controlling the inner extraction cylinder to rotate in the forward direction, with the inner extraction cylinder and the linkage liner forming a transmission engagement, and the linkage liner continuously agitating the raw material inside the inner extraction cylinder to achieve three-dimensional extraction; after the extraction operation is completed, controlling the inner extraction cylinder to rotate in the reverse direction, disengaging the transmission engagement between the inner extraction cylinder and the linkage liner and generating relative rotation, and the linkage liner cleaning the inner wall of the inner extraction cylinder.
[0013] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. This invention, by setting up a sandwich cavity formed by the outer extraction cylinder and the inner extraction cylinder, and cooperating with the liquid distribution structure with densely distributed permeation holes on the inner extraction cylinder wall, allows the extraction solvent to uniformly penetrate and wet the material from the outside to the inside. Combined with the internal dynamic disturbance mechanism to continuously update the solid-liquid contact interface, it effectively solves the technical problems of solidification of the mass transfer boundary layer of the material bed, poor leaching uniformity, and high residual oil content in the meal in the existing static leaching process, and significantly improves the oil extraction recovery rate and batch extraction quality consistency.
[0014] 2. This invention, by setting up a one-way force transmission clutch structure with an elastic clutch slider and a linkage slider built into the annular groove on the inner wall of the extraction cylinder, automatically completes the engagement and disengagement of torque transmission by switching the forward and reverse directions of the extraction cylinder. This allows the extraction disturbance and the self-cleaning process of the inner wall of the extraction cylinder to share the same drive system, effectively solving the problem that the cleaning function of existing extraction equipment requires an additional power unit and the overall structure is complex, simplifying the equipment configuration and reducing operation and maintenance costs.
[0015] 3. By setting up a multi-stage linkage transmission structure for the disturbance component, the present invention transforms the single circumferential rotational motion of the extraction inner cylinder into a composite disturbance action of the reciprocating sliding of the disturbance wing plate, effectively solving the defects of traditional rotary extraction that relies solely on material turning and has a single disturbance dimension, thereby achieving three-dimensional disturbance of the entire material billet and significantly enhancing mass transfer efficiency.
[0016] 4. This invention provides a receiving trough inside the annular chute. During the extraction operation, the linkage slide body is fully fitted inside the receiving trough, and the second elastic element is in a completely unloaded and relaxed state, avoiding long-term pressure fatigue deformation. When switching to the cleaning operation, the linkage slide body disengages from the receiving trough and compresses the second elastic element. The elastic thrust is used to drive the linkage liner to adhere to the inner wall of the extraction cylinder for slag scraping and cleaning, effectively solving the technical problem of continuous pressure throughout the process in traditional elastic wall-adhering structures. Attached Figure Description
[0017] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and form part of this application, do not constitute a limitation thereof. In the drawings: Figure 1 A schematic diagram from a first-person perspective of an edible oil three-dimensional extraction device; Figure 2 A schematic diagram from a second perspective of an edible oil three-dimensional extraction device; Figure 3 This is a schematic diagram of the internal structure of the extraction cylinder; Figure 4 for Figure 3 A magnified view of a portion of point A in the diagram; Figure 5 This is a cross-sectional view of the inner extraction cylinder penetrating the outer extraction cylinder; Figure 6 This is a schematic diagram of the disturbance component; Figure 7 This is the main structural view of the extraction inner cylinder; Figure 8 This is a sectional view of the main structure of the extraction inner cylinder; Figure 9 for Figure 8 A magnified view of a portion of point B in the middle; Figure 10 A schematic diagram showing the connection of the clutch slider to the first elastic element; Figure 11 This is a flowchart of a three-dimensional extraction method for edible oils.
[0018] The attached diagram shows the markings and corresponding component names: 1-Support frame, 2-Extraction outer cylinder, 3-Liquid inlet port, 4-Liquid inlet cap, 5-Liquid outlet port, 6-Liquid outlet cap, 7-Feeding port, 8-Feeding cap, 9-Discharge port, 10-Discharge cap, 11-Support, 12-Support shaft, 13-Driven gear ring, 14-Drive gear, 15-Drive motor, 16-Extraction inner cylinder, 17-Percolation through hole, 18-Disturbance component, 19-Annular ring 20-Slide rail, 21-Sliding guide shaft, 22-Sliding liner, 23-Closing / disconnecting slider, 24-Sliding bushing, 25-Compensating swing shaft, 26-Disturbance wing plate, 27-Eccentric swing arm, 28-Spherical socket, 29-Spherical head, 30-Telescopic channel, 31-Second elastic element, 32-Receiving slot, 33-Sliding channel, 34-First elastic element, 35-Guide slope, 36-Pressure bearing plane. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention. Example
[0020] Please refer to Figures 1 to 5 In a first aspect, embodiments of the present invention provide a three-dimensional extraction device for edible oil. A support frame 1 serves as the base for the entire machine, and an extraction outer cylinder 2 is mounted on the support frame 1. An inlet port 3 is provided at the top of the extraction outer cylinder 2, and an inlet seal 4 is detachably mounted at the inlet port 3; an outlet port 5 is provided at the bottom of the extraction outer cylinder 2, and an outlet seal 6 is detachably mounted at the outlet port 5.
[0021] An inner extraction cylinder 16 is axially inserted through an outer extraction cylinder 2, with both ends extending outside the outer extraction cylinder 2. A mechanical seal is installed at the insertion points of the inner extraction cylinder 16 and the outer extraction cylinder 2 to achieve airtight isolation of the extraction chamber. Multiple percolation holes 17 are formed in the inner wall of the inner extraction cylinder 16 within the outer extraction cylinder 2. A feeding port 7 is located at one end of the inner extraction cylinder 16, with a detachable feeding cap 8. A discharge port 9 is located at the other end of the inner extraction cylinder 16, with a detachable discharge cap 10. The inner extraction cylinder 16 is arranged at an axial angle, and a drive assembly is engaged with the inner extraction cylinder 16 to drive it to rotate around its own axis.
[0022] Before extraction, the oilseed is pretreated: the moisture content and internal pore structure of the material are adjusted through cleaning, conditioning, rolling, and steaming / roasting processes to improve the efficiency of subsequent solvent penetration. During formal extraction, the feeding cap 8 is opened, and the pretreated material is filled into the inner extraction cylinder 16. All caps are then closed to form a sealed extraction environment. The extraction solvent is introduced into the inner cavity of the outer extraction cylinder 2 through the liquid inlet port 3. The extraction solvent enters the inner extraction cylinder 16 through the permeation hole 17 and comes into full contact with the material.
[0023] The drive assembly continuously rotates the extraction inner cylinder 16, causing continuous tumbling and disturbance of the material billet. This prevents the formation of a stable saturated liquid film on the surface of the billet, reduces mass transfer resistance, enhances the oil extraction effect, and achieves full-area three-dimensional leaching. After extraction, the extraction inner cylinder 16 continues to rotate, and the liquid outlet seal 6 is opened to discharge the mixed oil containing dissolved oil, which is then sent to the subsequent refining process. After the mixed oil is completely drained, the discharge seal 10 is opened. Utilizing the inclined arrangement and continuous rotation of the extraction inner cylinder 16, the billet residue is axially conveyed to the discharge port 9 and discharged, completing a single extraction cycle.
[0024] Please refer to Figures 6 to 8 In some embodiments of this application, a sliding guide shaft 21 is radially arranged inside the extraction inner cylinder 16, and a sliding bushing 24 is slidably sleeved on the outer wall of the sliding guide shaft 21. Supports 11 are respectively arranged on the outer sides of both axial ends of the extraction inner cylinder 16, and each support 11 is correspondingly equipped with a disturbance component 18. The movable end of the disturbance component 18 passes through the interior of the extraction inner cylinder 16 and is connected to the sliding bushing 24.
[0025] During the rotation of the extraction inner cylinder 16, the sliding guide shaft 21 rotates synchronously in the circumferential direction, and the sliding guide shaft 21 pulls the sliding sleeve 24 to make a circular motion together. In the circular motion state, the sliding sleeve 24 is constrained and limited by the disturbance component 18, and makes radial reciprocating sliding along the axis of the sliding guide shaft 21, which synchronously drives the action end of the disturbance component 18 to generate a reciprocating swinging motion, forming a multi-dimensional dynamic disturbance to the material blank inside the extraction inner cylinder 16.
[0026] Please refer to Figure 6 Specifically, the disturbance assembly 18 includes a support shaft 12, an eccentric swing arm 27, a ball head 29, a compensating swing shaft 25, and multiple disturbance wing plates 26. The support shaft 12 is rotatably mounted on the support 11 and passes through the end wall of the extraction outer cylinder 2. A mechanical seal is provided at the penetration joint between the support shaft 12 and the extraction outer cylinder 2. One end of the eccentric swing arm 27 is rotatably sleeved on the support shaft 12, and the other end of the eccentric swing arm 27 has a ball socket 28. The ball head 29 is hinged inside the ball socket 28 and is connected to one end of the compensating swing shaft 25. The other end of the compensating swing shaft 25 is connected to the sliding bushing 24. The disturbance wing plates 26 are arranged sequentially along the axial direction of the compensating swing shaft 25.
[0027] During the rotation of the inner extraction cylinder 16, the sliding guide shaft 21 rotates synchronously, pulling the sliding bushing 24 to perform a circular motion; the sliding bushing 24 drives the compensating swing shaft 25 to move synchronously. To adapt to the fixed length of the compensating swing shaft 25, the sliding bushing 24 slides radially back and forth along the sliding guide shaft 21 to compensate for the displacement. At the same time, the ball head 29 swings spherically within the ball socket 28, and the eccentric swing arm 27 rotates around the supporting shaft 12. Through multi-degree-of-freedom coordination to eliminate motion interference, the compensating swing shaft 25 ultimately drives each disturbance wing plate 26 to form a compound disturbance action. The entire mechanism can simultaneously achieve the overall material turning of the inner extraction cylinder 16 and the multi-dimensional disturbance of the internal disturbance wing plates 26 through only a single rotation input of the inner extraction cylinder 16, forming a multi-level linkage effect.
[0028] Two sets of disturbance components 18 are symmetrically arranged on both sides of the sliding sleeve 24. During the rotation of the extraction inner cylinder 16, the eccentric swing arms 27 on both sides rotate in opposite directions and move in synchronized phases. The two compensating swing shafts 25 synchronously apply radial driving force to the sliding sleeve 24, ensuring that the sliding sleeve 24 slides back and forth along the sliding guide shaft 21. The disturbance wing plates 26 on the two compensating swing shafts 25 form staggered disturbance areas with the swing and sliding movements, realizing full-area three-dimensional disturbance of the material blank in the inner cavity of the extraction inner cylinder 16.
[0029] In some embodiments of this application, an annular groove 19 is provided circumferentially on the inner wall of the extraction inner cylinder 16. Linkage slide bodies 20 are respectively mounted at both ends of the sliding guide shaft 21. The linkage slide bodies 20 are at least partially embedded inside the annular groove 19 and can slide relative to each other circumferentially along the annular groove 19. Linkage liner wings 22 are respectively provided on both sides of the portion of the linkage slide body 20 exposed outside the annular groove 19. A clutch assembly is installed inside the annular groove 19. The clutch assembly rotates synchronously with the extraction inner cylinder 16 and is used to cooperate with the linkage slide body 20 to achieve clutch switching for torque transmission.
[0030] Under disturbance conditions, the extraction inner cylinder 16 rotates in the forward direction, and the clutch assembly rotates synchronously with the extraction inner cylinder 16 to abut against the linkage slide body 20. The rotational torque is transmitted through circumferential pushing, which drives the linkage slide body 20 and the sliding guide shaft 21 to rotate synchronously with the extraction inner cylinder 16. The linkage liner 22 on both sides of the linkage slide body 20 participates in the tumbling disturbance of the material inside the extraction inner cylinder 16, and forms a synergistic effect with the internal disturbance component 18 to enhance the extraction mass transfer effect.
[0031] During the cleaning process, the extraction inner cylinder 16 rotates in the opposite direction, and the clutch assembly rotates in the opposite direction with the extraction inner cylinder 16. After the clutch assembly contacts the linkage slide body 20, it automatically retracts to avoid contact, disengaging the torque transmission engagement with the linkage slide body 20, so that the extraction inner cylinder 16 rotates independently relative to the linkage slide body 20 and the linkage liner 22. The linkage liner 22 slides against the inner wall of the extraction inner cylinder 16, and the linkage liner 22 scrapes off the residue attached to the inner wall of the extraction inner cylinder 16, thus achieving self-cleaning of the extraction inner cylinder 16.
[0032] Please refer to Figure 9 and Figure 10 Specifically, the clutch assembly includes a sliding channel 33, a clutch slider 23, and a first elastic element 34. The sliding channel 33 is formed inside the side wall of the annular groove 19. The clutch slider 23 is slidably embedded inside the sliding channel 33. The side of the clutch slider 23 facing the annular groove 19 is respectively machined with a guide slope 35 and a pressure bearing plane 36. The first elastic element 34 is housed inside the sliding channel 33. The two ends of the first elastic element 34 are respectively connected to the bottom wall of the sliding channel 33 and the end face of the clutch slider 23.
[0033] In its natural state, the reset thrust of the first elastic element 34 (reset spring) drives the disengagement slider 23 to extend out of the sliding channel 33 into the annular slide groove 19, and is in a working position that can form a circumferential fit with the linkage slider 20.
[0034] When the inner extraction cylinder 16 rotates in the forward direction, the disengaging slider 23 rotates synchronously in the forward direction with the inner extraction cylinder 16. The pressure-bearing plane 36 forms a surface contact with the circumferential end face of the linkage slider 20, transmitting the rotational torque and pushing the linkage slider 20 to slide synchronously in the forward direction along the annular slide groove 19, thereby realizing the synchronous linkage between the sliding guide shaft 21 and the inner extraction cylinder 16.
[0035] When the inner extraction cylinder 16 rotates in the reverse direction, the guide slope 35 first contacts the circumferential end face of the linkage slide body 20. The reaction force of the linkage slide body 20 on the guide slope 35 is decomposed into a radial component force, which pushes the clutch slider 23 to compress the first elastic element 34 and retract into the sliding channel 33 to avoid it, until it completely disengages from the circumferential contact with the linkage slide body 20. Then the inner extraction cylinder 16 can rotate independently relative to the linkage slide body 20, completing the automatic clutch switching between the two working conditions.
[0036] It should be noted that when the inner extraction cylinder 16 rotates in the reverse direction, the guide slope 35 contacts the linkage slide body 20, and the contact pressure is decomposed into circumferential and radial components. The circumferential component tends to cause the clutch slider 23 to drive the linkage slide body 20 to rotate synchronously, while the radial component tends to cause the linkage slide body 20 to push the clutch slider 23 to retract. When the matching design parameters are met, the radial component dominates, and the linkage slide body 20 pushes the clutch slider 23 to retract into the sliding channel 33.
[0037] For example, the linkage slide body 20 has a telescopic channel 30 inside, and the end of the sliding guide shaft 21 is slidably fitted into the telescopic channel 30, allowing the linkage slide body 20 and the sliding guide shaft 21 to slide relative to each other. A second elastic element 31 is installed inside the telescopic channel 30, with one end connected to the inner wall of the bottom of the telescopic channel 30 and the other end connected to the end face of the sliding guide shaft 21. The second elastic element 31 continuously outputs radial elastic force, driving the linkage slide body 20 to maintain a tendency away from the sliding guide shaft 21, thereby causing the linkage liner 22 to adhere to the inner wall of the extraction inner cylinder 16, maintaining a stable scraping contact pressure, and enhancing the cleaning effect of the inner wall.
[0038] Please refer to Figure 9 The annular groove 19 has a receiving groove 32 at the position corresponding to the pressure plane 36 of the sliding block 23. Both sides of the receiving groove 32 are provided with guide slopes to guide the linkage slide body 20 to smoothly complete the sliding in and out movements.
[0039] The forward rotation of the extraction inner cylinder 16 corresponds to the main disturbance operation process, which runs continuously for a long time. At this time, the linkage slide 20 slides into the receiving tank 32 along the guide slope. The second elastic element 31 does not need to maintain compression deformation, which can effectively avoid fatigue failure caused by long-term pressure. At the same time, after the linkage slide 20 is in place, the linkage liner 22 is attached to the inner wall of the extraction inner cylinder 16. The deformation of the rubber elastic layer on the surface of the linkage liner 22 is within a reasonable range and will not be damaged due to excessive deformation. The pressure-bearing plane 36 of the disengagement slider 23 abuts against the linkage slide 20 in the receiving tank 32 to transmit force, driving the linkage slide 20 to perform the material disturbance operation.
[0040] When switching to the cleaning process, the extraction inner cylinder 16 rotates in the reverse direction, and the linkage slide 20 slides out of the receiving groove 32 under the guidance of the guide slope. The second elastic element 31 undergoes compression deformation, providing radial wall-adhering pressure to the linkage liner 22, keeping the linkage liner 22 in contact with the inner wall of the extraction inner cylinder 16. Since the cleaning process is a non-mainstream process with a short continuous operation time, the second elastic element 31 will not suffer fatigue damage due to being in a compressed state for a short period of time, and there is no need to consider its lifespan loss.
[0041] In some embodiments of this application, the outer wall of the linkage liner 22 is covered with an elastic pad. The elastic pad can compensate for the assembly gap through elastic deformation, ensuring that the linkage liner 22 fits snugly against the inner wall of the extraction inner cylinder 16 and enhancing the cleaning effect; at the same time, it can buffer radial contact stress and avoid rigid interference between the linkage liner 22 and the inner wall of the extraction inner cylinder 16.
[0042] Please refer to Figure 1 and Figure 2In some embodiments of this application, the drive assembly includes a driven gear ring 13, a driving gear 14, and a drive motor 15. The driven gear ring 13 is fixedly sleeved on the outer periphery of the end of the extraction inner cylinder 16. The driving gear 14 meshes with the driven gear ring 13, and the output shaft of the drive motor 15 is coaxially and fixedly connected to the driving gear 14. The rotational torque output by the drive motor 15 is transmitted to the driven gear ring 13 through gear meshing, and the driven gear ring 13 drives the extraction inner cylinder 16 to rotate synchronously around its own axis.
[0043] Please refer to Figure 11 Secondly, embodiments of the present invention provide a method for three-dimensional extraction of edible oil, comprising the following steps: S1: The material blank is filled into the inner extraction cylinder 16, and the extraction solvent is introduced into the interlayer cavity between the outer extraction cylinder 2 and the inner extraction cylinder 16. The extraction solvent permeates into the material blank through the permeation hole 17. The raw material is filled into the internal chamber of the extraction inner cylinder 16, where it is contained and restrained to prevent diffusion into the jacketed cavity. The extraction solvent is introduced into the jacketed cavity formed by the extraction outer cylinder 2 and the extraction inner cylinder 16. The solvent-wetting environment created within the cavity allows the solvent to permeate into the inner cylinder 16 through the permeation holes 17 distributed on its wall, ensuring full contact with the raw material and completing the leaching process. After extraction, the leached raw material and the mixed oil containing the target components are discharged through their respective outlet channels.
[0044] S2: Control the extraction inner cylinder 16 to rotate in the forward direction. The extraction inner cylinder 16 and the linkage liner 22 form a transmission cooperation. The linkage liner 22 continuously disturbs the material in the extraction inner cylinder 16 to realize the full-area three-dimensional extraction operation. Controlling the extraction inner cylinder 16 to rotate in the forward direction can drive the linkage liner 22 to rotate synchronously with the extraction inner cylinder 16; during the circumferential movement, the linkage liner 22 continuously disturbs the material inside the extraction inner cylinder 16, enhances the uniformity of contact between the material and the extraction solvent, eliminates local leaching dead zones, and realizes full-area three-dimensional extraction operation.
[0045] S2: After the extraction operation is completed, control the inner extraction cylinder 16 to rotate in the opposite direction. The inner extraction cylinder 16 and the linkage liner 22 are disengaged from the transmission and rotate relative to each other. The linkage liner 22 cleans the inner wall of the inner extraction cylinder 16. After the extraction operation is completed, the extraction inner cylinder 16 is controlled to rotate in the opposite direction, and the extraction inner cylinder 16 and the linkage liner 22 form a circumferential relative rotation; the linkage liner 22 remains in contact with the inner wall of the extraction inner cylinder 16, and scrapes off the material residue and accumulated impurities attached to the inner wall of the extraction inner cylinder 16 through relative circumferential movement, thus completing the cleaning operation of the inner wall of the extraction inner cylinder 16.
[0046] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. A three-dimensional extraction device for edible oil, characterized in that, include: Support frame (1); Extraction outer cylinder (2), the extraction outer cylinder (2) is mounted on the support frame (1), the top of the extraction outer cylinder (2) is detachably fitted with a liquid inlet cap (4), and the bottom of the extraction outer cylinder (2) is detachably fitted with a liquid outlet cap (6). An extraction inner cylinder (16) is arranged through the extraction outer cylinder (2). The extraction inner cylinder (16) and the extraction outer cylinder (2) are rotated together. The inner cylinder (16) is provided with multiple permeation holes (17) on the inner wall of the extraction outer cylinder (2). One end of the extraction inner cylinder (16) is detachably fitted with a feeding cap (8), and the other end of the extraction inner cylinder (16) is detachably fitted with a discharge cap (10). The driving component is in transmission cooperation with the extraction inner cylinder (16). The driving component can drive the extraction inner cylinder (16) to rotate, thereby causing the material inside the extraction inner cylinder (16) to dynamically tumble and disturb.
2. The edible oil three-dimensional extraction device according to claim 1, characterized in that, The inner extraction cylinder (16) is radially fitted with a sliding guide shaft (21), and a sliding bushing (24) is slidably fitted on the sliding guide shaft (21). Supports (11) are arranged on both sides of the extraction inner cylinder (16), and a disturbance component (18) is mounted on each support (11). The disturbance component (18) passes through the extraction inner cylinder (16) at least partially and is connected to the sliding bushing (24). When the extraction inner cylinder (16) rotates, it can drive the sliding bushing (24) to slide back and forth along the sliding guide shaft (21), thereby driving the disturbance component (18) to form a dynamic disturbance on the billet.
3. The edible oil three-dimensional extraction device according to claim 2, characterized in that, The disturbance component (18) includes: A support shaft (12) is rotatably mounted on the support (11) and passes through the end of the extraction outer cylinder (2); An eccentric swing arm (27) is provided. One end of the eccentric swing arm (27) is rotatably mounted on the support shaft (12), and the other end of the eccentric swing arm (27) is provided with a ball socket (28). Ball head (29), which is hingedly fitted inside the ball socket (28); Compensating pendulum shaft (25), one end of which is connected to the ball head (29), and the other end of which is connected to the sliding bushing (24); Multiple disturbance wing plates (26) are respectively mounted on the compensation swing shaft (25); The inner extraction cylinder (16) rotates, causing the sliding bushing (24) to rotate synchronously. The eccentric swing arm (27) transmits constraints through the compensation swing shaft (25), driving the sliding bushing (24) to reciprocate and compensate along the sliding guide shaft (21).
4. The edible oil three-dimensional extraction device according to claim 3, characterized in that, The inner wall of the extraction inner cylinder (16) is provided with an annular groove (19) along the circumferential direction. The sliding guide shaft (21) is equipped with a linkage slide body (20) at both ends. The linkage slide body (20) is at least partially slidably embedded in the annular groove (19). Linkage liner wings (22) are respectively provided on both sides of the exposed part of the linkage slide body (20) in the annular groove (19). The annular groove (19) is equipped with a clutch assembly; Under disturbance conditions, the extraction inner cylinder (16) rotates in the forward direction, the separation assembly abuts against the linkage slide body (20), and the separation assembly pushes the sliding guide shaft (21) to rotate synchronously. During the cleaning process, the extraction inner cylinder (16) rotates in the opposite direction, the separation component disengages from the linkage slide (20), and the extraction inner cylinder (16) rotates relative to the linkage liner (22).
5. The edible oil three-dimensional extraction device according to claim 4, characterized in that, The separation assembly includes: Sliding channel (33), the sliding channel (33) is provided on the inner wall of the annular sliding channel (19); The clutch slider (23) is at least partially slidably assembled inside the sliding channel (33). One side of the clutch slider (23) is provided with a guide slope (35), and the other side of the clutch slider (23) is provided with a pressure bearing surface (36). The first elastic element (34) is disposed in the sliding channel (33), one end of the first elastic element (34) is connected to the inner wall of the sliding channel (33), and the other end of the first elastic element (34) is connected to the engagement / disengagement slider (23). When the extraction inner cylinder (16) rotates in the forward direction, the pressure-bearing plane (36) pushes the linkage slide body (20) to transmit rotational torque; When the extraction inner cylinder (16) rotates in the opposite direction, the linkage slide (20) squeezes the guide slope (35), causing the separation slider (23) to retract and avoid.
6. The edible oil three-dimensional extraction device according to claim 4 or 5, characterized in that, The outer wall of the linkage liner (22) is covered with an elastic pad.
7. The edible oil three-dimensional extraction apparatus according to any one of claims 1 to 5, characterized in that, The driving component includes: Driven gear ring (13), the driven gear ring (13) is fixedly fitted to the end of the extraction inner cylinder (16); The driving gear (14) meshes with the driven gear ring (13) for transmission; A drive motor (15) is provided, the output shaft of which is connected to the drive gear (14).
8. A method for three-dimensional extraction of edible oil, characterized in that, The edible oil three-dimensional extraction apparatus according to any one of claims 1 to 7 includes the following steps: The blank is filled into the inner extraction cylinder (16), and the extraction solvent is introduced into the interlayer cavity between the outer extraction cylinder (2) and the inner extraction cylinder (16). The extraction solvent permeates into the blank through the permeation hole (17). Control the extraction inner cylinder (16) to rotate in the forward direction. The extraction inner cylinder (16) and the linkage liner (22) form a transmission cooperation. The linkage liner (22) continuously disturbs the material in the extraction inner cylinder (16) to realize the full-area three-dimensional extraction operation. After the extraction operation is completed, the extraction inner cylinder (16) is controlled to rotate in the opposite direction. The extraction inner cylinder (16) and the linkage liner (22) are disengaged and rotate relative to each other. The linkage liner (22) cleans the inner wall of the extraction inner cylinder (16).