An extraction device for perilla oil and an extraction method thereof

Abstract

This application relates to the technical field of crude oil extraction, and particularly relates to an extraction device and an extraction method for perilla oil, including a water washing tank, a mixing component, a sliding component, and a transmission component. A cover plate is installed on the upper side of the water washing tank, and an oil inlet pipe and an infusion pipe are fixedly connected to the cover plate. An oil outlet pipe is fixedly connected to the side wall of the water washing tank. The mixing component includes a driving motor, a rotating shaft, a sliding rod, and a plurality of stirring blades. The driving motor is fixedly connected to the cover plate. The rotating shaft is arranged in the water washing tank. The sliding rod is slidably connected to the rotating shaft along the axial direction of the rotating shaft. The stirring blades are all fixedly connected to the sliding rod, and the inclination angles of adjacent stirring blades are opposite. The sliding component drives the sliding rod to reciprocate along the length direction of the rotating shaft. The transmission component is installed between the rotating shaft and the sliding component. This application has the effect of making the degumming degree of crude oil in different depth layers consistent.

Description

Technical Field

[0001] The present application relates to the technical field of crude oil extraction, and in particular, to an extraction device and an extraction method for perilla oil. Background Art

[0002] Perilla oil is an edible oil extracted from perilla seeds. Perilla oil contains 40%-65% of α-linolenic acid, which is the highest among known vegetable oils. After low-temperature pressing of perilla seeds, crude oil is obtained. The crude oil contains a lot of impurities, such as fat-soluble impurities. The thermal and oxygen stability of fat-soluble impurities is poor, resulting in easy oxidation and deterioration of the crude oil, which is not suitable for long-term storage and cannot meet people's usage requirements.

[0003] In the process of removing fat-soluble impurities, a certain amount of lye is usually added to the crude oil under stirring, and the lye reacts with the free fatty acids in the crude oil to form soap. Then, some flocculants or coagulants are added to make the precipitate coagulate into larger particles and be separated and removed.

[0004] Currently, a refined oil equipment with the publication number of CN215404107U includes a deacidification and dehydration tank. A stirring mechanism is fixedly installed on the top of the deacidification and dehydration tank. The stirring mechanism includes a stirring motor, a stirring shaft and stirring rods. The stirring motor is fixedly installed on the top of the deacidification and dehydration tank. The output shaft end of the stirring motor penetrates through the top of the deacidification and dehydration tank and is fixedly connected with the stirring shaft. The stirring rods are equidistantly distributed on the stirring shaft. Starting the stirring motor can drive the stirring shaft and the stirring rods to rotate. By injecting the lye and the crude oil into the deacidification and dehydration tank, and then using the stirring motor to drive the stirring rods located in the deacidification and dehydration tank to rotate, the lye and the crude oil are mixed.

[0005] In view of the above related technologies, during the process of mixing the lye and the crude oil in the deacidification and dehydration tank by using the stirring rods, the mixing method is single, and only the lye and the crude oil in the same layer can be fully mixed. It is difficult to mix the lye and the crude oil with a large depth difference in the deacidification and dehydration tank, which easily causes the mixing ratio of the lye and the crude oil in different depth layers of the deacidification and dehydration tank to be different, resulting in different deacidification degrees of the crude oil in different depth layers and affecting the subsequent crude oil extraction quality. Summary of the Invention

[0006] In order to make the deacidification degree of the crude oil in different depth layers of the lye and the crude oil consistent, the present application provides an extraction device and an extraction method for perilla oil.

[0007] The extraction device for perilla oil provided by the present application adopts the following technical solutions:

[0008] An extraction device for perilla oil, comprising:

[0009] Water washing tank, a cover plate is installed on the upper side of the water washing tank, an oil inlet pipe and an infusion pipe are fixedly connected to the cover plate, an oil outlet pipe is fixedly connected to the side wall of the water washing tank, and the oil inlet pipe, the infusion pipe and the oil outlet pipe are all communicated into the water washing tank;

[0010] Mixing assembly, including a driving motor, a rotating shaft, a sliding rod and a plurality of stirring blades, the driving motor is fixedly connected to the cover plate, the rotating shaft is arranged in the water washing tank, and the rotating shaft is fixedly connected to the output shaft of the driving motor, the sliding rod is slidably connected to the rotating shaft along the axis direction of the rotating shaft, the stirring blades are all fixedly connected to the sliding rod, and the inclination angles of adjacent stirring blades are opposite;

[0011] Sliding assembly, installed in the water washing tank, and the sliding assembly is connected to the sliding rod, the sliding assembly is used to drive the sliding rod to reciprocate along the length direction of the rotating shaft; and

[0012] Transmission assembly, installed between the rotating shaft and the sliding assembly, so that when the rotating shaft rotates, it drives the sliding assembly to drive the sliding rod to reciprocate.

[0013] By adopting the above technical solutions, crude oil is injected into the water washing tank from the oil inlet pipe, and at the same time, lye is also injected into the infusion tank. Then start the driving motor, the driving motor drives the rotating shaft to rotate, the rotating shaft drives the sliding rod to rotate, and the sliding rod rotates to drive two adjacent stirring blades with opposite inclination angles to rotate. When the two adjacent stirring blades rotate, they drive the solution in the water washing tank to flow between the two adjacent stirring blades, so that the crude oil and the lye are impact-mixed.

[0014] When the driving motor drives the rotating shaft, the rotating shaft drives the sliding assembly to move through the transmission assembly, and the sliding assembly drives the sliding rod to reciprocate, so that the stirring blades can fully mix the crude oil and the lye at different depth layers in the water washing tank, so that the degreasing degree of the crude oil at different depth layers is consistent, and further improve the quality of subsequent crude oil extraction.

[0015] Optionally, the sliding assembly includes a mounting seat, a reciprocating screw rod, a guide rod and a sliding rod, the mounting seat is fixedly connected to the inner side wall of the water washing tank, the reciprocating screw rod is rotatably connected to the mounting seat, and the axis of the reciprocating screw rod is parallel to the axis of the sliding rod, one end of the reciprocating screw rod passes through the water washing tank and is connected to the transmission assembly; the axis of the guide rod is fixedly connected to the mounting seat parallel to the axis direction of the reciprocating screw rod, the sliding rod is threadedly connected to the reciprocating screw rod, and the sliding rod is sleeved on the guide rod, a ring groove is formed on the sliding rod, and one end of the sliding rod is inserted into the ring groove.

[0016] By adopting the above technical solution, the transmission component drives the reciprocating lead screw to rotate, and the rotation of the reciprocating lead screw drives the sliding rod to reciprocate along the length direction of the guiding rod, thereby driving the sliding rod to reciprocate along its own axis direction.

[0017] Optionally, the transmission member includes a driving gear and a transmission gear. The driving gear is coaxially and fixedly connected to the rotating shaft, the transmission gear is coaxially and fixedly connected to the reciprocating lead screw, and the driving gear meshes with the transmission gear.

[0018] By adopting the above technical solution, when the rotating shaft rotates, it drives the driving gear to rotate. The rotation of the driving gear drives the transmission gear, and the rotation of the transmission gear drives the reciprocating lead screw to rotate, so that the reciprocating lead screw drives the sliding rod to drive the sliding rod to reciprocate.

[0019] Optionally, there are two stirring blades, and the liquid outlets of the two stirring blades are located on one side close to each other. Two drainage sleeves are fixedly connected to the sliding rod, and the two drainage sleeves are respectively sleeved on the sides of the stirring blades away from each other.

[0020] By adopting the above technical solution, the arrangement of the drainage sleeve separates the flow direction of the solution in the water washing tank, so that the solution inside the drainage sleeve flows towards the middle of the two stirring blades, while the solution outside the drainage sleeve flows away from the middle of the two stirring blades, so that the flow range of the solution in the water washing tank covers more different depth levels, and further improves the mixing effect of the solution in the water washing tank.

[0021] Optionally, a filter element is fixedly connected to the drainage sleeve away from the stirring blade. The filter element abuts against the inner side wall of the water washing tank to divide the internal space of the water washing tank into a mixing area and a filtering area. The solution in the filtering area enters the mixing area after being filtered by the filter element, and the oil outlet pipe is communicated with the mixing area.

[0022] By adopting the above technical solution, the arrangement of the filter element enables the precipitate generated by the mixing of the crude oil and the lye to flow from the mixing area outside the drainage sleeve to the filtering area, and then the solution passes through the filter element and then flows from the inside of the drainage sleeve to the mixing area. At this time, the precipitate generated by the mixing of the crude oil and the lye is filtered by the filter element in the filtering area, and the filter element is used to collect the precipitate generated by the mixing of the crude oil and the lye, so as to avoid the precipitate generated by the mixing of the crude oil and the lye from entering the subsequent refining process and affecting the quality of the subsequent crude oil.

[0023] Optionally, the filter element includes a filter plate and a filter screen. The filter plate is fixedly connected to the drainage sleeve, the filter screen is installed on the filter plate, and the filter screen is located at the opening of the drainage sleeve. The filter plate is provided with a liquid inlet on the outer side of the drainage sleeve, and a movable plug is installed on the filter plate. The movable plug is used to prevent the solution in the filtration area from flowing through the liquid inlet into the mixing area.

[0024] By adopting the above technical solution, with the cooperation of the filter plate, the filter screen, the drainage sleeve, the liquid inlet and the movable plug, the mixed solution in the mixing area of the water washing tank continuously flows from the liquid inlet into the filtration area under the drive of the stirring blade, and then the stirring blade also simultaneously filters the mixed solution in the filtration area through the filter screen and flows into the mixing area, so as to collect the precipitate generated by the mixing of crude oil and lye by using the filter screen.

[0025] The function of the movable plug is to prevent the mixed solution in the filtration area from flowing through the liquid inlet into the mixing area during the reciprocating movement of the filter plate and the filter screen along the sliding rod with the drainage sleeve, so as to avoid the precipitate generated by the mixing of crude oil and lye from flowing into the mixing area again.

[0026] Optionally, the side of the filter screen facing the filtration area bulges, and a partition screen is fixedly connected to one end of the filter screen close to the filter plate. The partition screen is inclined towards the filter plate, and there is a gap between the partition screen and the filter plate.

[0027] By adopting the above technical solution, during the reciprocating movement of the filter screen with the drainage sleeve, the precipitate intercepted by the filter screen can be gradually moved towards the filter plate, and the setting of the partition screen can intercept the precipitate close to the filter plate, thereby reducing the blockage of the filter screen by the precipitate close to the filter plate again and improving the smoothness of the filter screen during the filtration process.

[0028] Optionally, a movable rod is fixedly connected to the side of the filter plate facing the filtration area, the movable plug is slidably connected to the movable rod, and the side of the movable plug facing the liquid inlet is tapered.

[0029] By adopting the above technical solution, when the mixed solution in the mixing area flows from the liquid inlet into the filtration area, the mixed solution impacts on the movable plug, causing the movable plug to move away from the filter plate on the movable rod, so that the movable plug releases the blockage of the liquid inlet, and then the mixed solution in the mixing area can smoothly flow from the liquid inlet into the filtration area.

[0030] When the mixed solution in the filtration area is to flow from the liquid inlet into the mixing area, the mixed solution impacts on the movable plug, causing the movable plug to abut against the filter plate on the movable rod, so that the movable plug blocks the liquid inlet, and then the mixed solution in the filtration area cannot flow from the liquid inlet into the mixing area.

[0031] Optionally, a locking seat is fixedly connected to one side of the filter net close to the filter plate, a plurality of convex plates are fixedly connected to the edge of the locking seat, a locking groove is formed on the convex plate, a mounting groove is formed on the filter plate, a plurality of limit blocks are fixedly connected to the opening of the mounting groove, and a locking protrusion is fixedly connected to the limit block close to the inside of the mounting groove, and when the locking seat is installed in the mounting groove, the convex plate abuts against the limit block, and the locking protrusion abuts against the locking groove.

[0032] By adopting the above technical solution, the locking seat is inserted into the mounting groove by utilizing the cooperation of the locking seat, the convex plate, the locking groove, the mounting groove, the limit block and the locking protrusion, and the locking seat is rotated so that the convex plate abuts against the limit block, and the locking protrusion is inserted into the locking groove, thereby completing the locking of the filter net and facilitating the disassembly of the filter net.

[0033] A method for extracting perilla oil, comprising:

[0034] S1. Material preparation: providing crude perilla oil, heating the crude perilla oil, controlling the initial temperature of the crude perilla oil at 30-35° C., providing alkali solution, controlling the concentration of the alkali solution at 12.59%-14.24%, and providing a coagulant;

[0035] S2, crude oil input, the perilla crude oil with an initial temperature of 30-35°C is transported to the washing tank through the oil inlet pipe;

[0036] S3, alkali solution input, the alkali solution with a concentration of 12.59% to 14.24% is transported to the water washing tank through the infusion pipe, and the coagulant is transported to the water washing tank through the infusion pipe;

[0037] S4, mixing and filtering, starting the driving motor, and using the driving motor to drive the stirring blade to rotate, so that the mixture of alkali solution and crude oil continuously collides and mixes in the washing tank;

[0038] S5. Remove the crude oil, stop driving the motor, and discharge the solution in the washing tank through the oil outlet pipe.

[0039] By adopting the above technical scheme, the deacidification of crude oil is completed by utilizing the steps of S1, material preparation → S2, crude oil input → S3, alkali solution input → S4, mixed filtration → S5, crude oil removal.

[0040] First, provide perilla crude oil, lye, and flocculant. Heat the perilla crude oil and control the initial temperature of the perilla crude oil at 30 - 35 °C, while controlling the lye concentration at 12.59% - 14.24%. Transport the perilla crude oil with an initial temperature of 30 - 35 °C to the water washing tank through the inlet pipe, and at the same time, transport the lye with a concentration of 12.59% - 14.24% to the water washing tank through the infusion pipe. Then, transport the flocculant to the water washing tank through the infusion pipe. Next, start the driving motor and use the driving motor to drive the stirring blades to rotate, so that the mixture of lye and crude oil continuously collides and mixes in the water washing tank. Finally, stop the driving motor and discharge the solution in the water washing tank through the outlet pipe.

[0041] In summary, the present application includes at least one of the following beneficial technical effects:

[0042] Through the cooperation of the water washing tank, cover plate, inlet pipe, infusion pipe, outlet pipe, driving motor, rotating shaft, sliding rod, several stirring blades, sliding component, and transmission component, two adjacent stirring blades with opposite inclination angles rotate, driving the solution in the water washing tank to impact and mix between the two adjacent stirring blades. At the same time, the sliding component drives the stirring blades on the sliding rod to move reciprocally, enabling the stirring blades to fully mix the crude oil and lye at different depth layers in the water washing tank, so that the degreasing degree of the crude oil at different depth layers is consistent, thereby improving the quality of subsequent crude oil extraction.

[0043] Through the cooperation of two stirring blades and two drainage sleeves, the flow direction of the solution in the water washing tank is separated, extending the path of the unidirectional solution flow in the water washing tank, so that the flow range of the solution in the water washing tank covers more different depth levels, and thus the mixing effect of the solution in the water washing tank is better.

[0044] Through the cooperation of the filter plate, filter net, partition net, sliding component, and transmission component, when driving the stirring blades to rotate, the stirring blades, filter plate, filter net, and partition net are simultaneously driven to move reciprocally. Not only when fully mixing the crude oil and lye at different depth layers in the water washing tank, the filter net is used to collect the sediment generated by the mixing of the crude oil and lye, but also the reciprocating movement of the filter plate and filter net can gradually move the sediment intercepted by the filter net towards the filter plate, so that the partition net can intercept the sediment close to the filter plate, thereby reducing the blockage of the filter net by the sediment close to the filter plate again and improving the smoothness of the filter net during the filtering process. Description of the Drawings

[0045] Figure 1 is a schematic structural diagram of an extraction device for perilla oil in an embodiment of the present application.

[0046] Figure 2 is Figure 1 the cross-sectional view taken along line A - A in

[0047] Figure 3 It is a schematic internal structure diagram of an extraction device for perilla oil in an embodiment of the present application.

[0048] Figure 4 It is a schematic structural diagram of a filter plate in an embodiment of the present application.

[0049] Figure 5 It is a schematic structural diagram of a filter net in an embodiment of the present application.

[0050] Figure 6 It is a schematic flow chart of a method for extracting perilla oil in an embodiment of the present application.

[0051] Explanation of reference numerals:

[0052] 1. Water washing tank; 11. Cover plate; 12. Oil inlet pipe; 13. Liquid infusion pipe; 14. Oil outlet pipe; 15. Mixing area; 16. Filtering area; 2. Mixing assembly; 21. Driving motor; 22. Rotating shaft; 23. Sliding rod; 24. Stirring blade; 25. Ring groove; 3. Sliding assembly; 31. Mounting seat; 32. Reciprocating lead screw; 33. Guide rod; 34. Sliding rod; 4. Transmission assembly; 41. Driving gear; 42. Driven gear; 5. Drainage sleeve; 6. Filter element; 61. Filter plate; 611. Liquid inlet; 612. Movable rod; 613. Movable plug; 614. Installation groove; 615. Limiting block; 616. Locking convex block; 62. Filter net; 621. Locking seat; 622. Convex plate; 623. Locking groove; 63. Partition net. Detailed implementation manners

[0053] The following further elaborates on the present application in conjunction with the attached Figures 1-6 for a more detailed description.

[0054] An embodiment of the present application discloses an extraction device for perilla oil.

[0055] Refer to Figure 1 and Figure 2, The extraction device of perilla oil includes a water washing tank 1, a mixing component 2, a sliding component 3 and a transmission component 4. A cover plate 11 is installed on the upper side of the water washing tank 1, an oil inlet pipe 12 and an infusion pipe 13 are fixedly connected to the cover plate 11, an oil outlet pipe 14 is fixedly connected to the side wall of the water washing tank 1, and the oil inlet pipe 12, the infusion pipe 13 and the oil outlet pipe 14 are all communicated into the water washing tank 1. The mixing component 2 includes a driving motor 21, a rotating shaft 22, a sliding rod 23 and a number of stirring blades 24. The driving motor 21 is fixedly connected to the cover plate 11, the rotating shaft 22 is arranged in the water washing tank 1, and the rotating shaft 22 is fixedly connected to the output shaft of the driving motor 21. The sliding rod 23 is slidably connected to the rotating shaft 22 along the axis direction of the rotating shaft 22. The stirring blades 24 are all fixedly connected to the sliding rod 23, and the inclination angles of adjacent stirring blades 24 are opposite. The sliding component 3 is installed in the water washing tank 1 to drive the sliding rod 23 to reciprocate along the length direction of the rotating shaft 22. The transmission component 4 is installed between the rotating shaft 22 and the sliding component 3, so that when the rotating shaft 22 rotates, it drives the sliding component 3 to drive the sliding rod 23 to reciprocate. The sliding rod 23 rotates to drive the two stirring blades 24 with opposite inclination angles to rotate. When the two stirring blades 24 rotate, they drive the solution in the water washing tank 1 to flow towards the space between the two stirring blades 24. At the same time, the sliding component 3 drives the sliding rod 23 and the stirring blades 24 to reciprocate, so that the stirring blades 24 can fully mix the crude oil and lye at different depth layers in the water washing tank 1, so that the degreasing degree of the crude oil at different depth layers is consistent, and then improve the quality of subsequent crude oil extraction.

[0056] Referring to Figure 3 , in order to enable the sliding component 3 to drive the sliding rod 23 to reciprocate more stably along the length direction of the rotating shaft 22, 3 groups of sliding components 3 are provided in the sliding component 3 of this embodiment, and the 3 groups of sliding components 3 are evenly distributed around the sliding rod 23. In other embodiments, the sliding component 3 can also be set to 2 groups, 4 groups, 5 groups, etc. Using 3 groups of sliding components 3 to jointly drive the sliding rod 23 to move makes the movement of the sliding rod 23 more stable.

[0057] Referring to Figure 2 and Figure 3 , the sliding component 3 in this embodiment includes a mounting seat 31, a reciprocating lead screw 32, a guide rod 33 and a sliding rod 34. The mounting seat 31 is fixedly connected to the inner side wall of the water washing tank 1, the reciprocating lead screw 32 is rotatably connected to the mounting seat 31, and the axis of the reciprocating lead screw 32 is parallel to the axis of the sliding rod 23. One end of the reciprocating lead screw 32 passes through the water washing tank 1 and is connected to the transmission component 4. When the rotating shaft 22 rotates, the reciprocating lead screw 32 can be driven to rotate through the transmission component 4.

[0058] The axis of the guiding rod 33 is fixedly connected to the mounting seat 31 in a direction parallel to the axis of the reciprocating lead screw 32. The sliding rod 34 is threadedly connected to the reciprocating lead screw 32, and the sliding rod 34 is sleeved on the guiding rod 33. By guiding the sliding rod 34 with the guiding rod 33 and simultaneously using the threaded connection between the reciprocating lead screw 32 and the sliding rod 34, the sliding rod 34 can reciprocate along the length direction of the reciprocating lead screw 32 when the reciprocating lead screw 32 rotates threadedly.

[0059] A ring groove 25 is formed on the sliding rod 23. One end of the sliding rod 34 is inserted into the ring groove 25. By abutting the sliding rod 23 with 3 sliding rods 34, the sliding rod 23 is driven to reciprocate when the sliding rod 34 reciprocates.

[0060] In an alternative embodiment, the end of the sliding rod 34 abuts against the bottom wall of the ring groove 25 to make the sliding rod 23 more stable during rotation by abutting the sliding rod 23 with 3 sliding rods 34. At the same time, a sliding wheel can be provided at the end of the sliding rod 34 to reduce the friction between the sliding rod 34 and the sliding rod 23.

[0061] The transmission assembly 4 is used to drive the reciprocating lead screw 32 to rotate. The rotation of the reciprocating lead screw 32 drives the sliding rod 34 to reciprocate along the length direction of the guiding rod 33, thereby driving the sliding rod 23 to reciprocate along its own axis direction.

[0062] The transmission parts include a driving gear 41 and transmission gears 42. The driving gear 41 is coaxially and fixedly connected to the rotating shaft 22. There are 3 transmission gears 42. The 3 transmission gears 42 are coaxially and fixedly connected to 3 reciprocating lead screws 32 respectively, and the 3 transmission gears 42 are all meshed with the driving gear 41. The oil inlet pipe 12 and the liquid infusion pipe 13 are respectively arranged in the gaps between adjacent transmission gears 42. When the rotating shaft 22 rotates to drive the driving gear 41 to rotate, the driving gear 41 rotates to drive the transmission gears 42, and the rotating gears rotate to drive the reciprocating lead screws 32 to rotate, so that the reciprocating lead screws 32 drive the sliding rods 34 to drive the sliding rod 23 to reciprocate.

[0063] There are two stirring blades 24 in this embodiment, and the liquid outlets of the two stirring blades 24 are located on one side close to each other. Two drainage sleeves 5 are fixedly connected to the sliding rod 34, and the two drainage sleeves 5 are respectively sleeved on the sides of the stirring blades 24 away from each other. The drainage sleeves 5 are provided to separate the solution, thereby extending the circulation length of the solution in the water washing tank 1, so that the solution inside the drainage sleeve 5 flows towards the middle of the two stirring blades 24, while the solution outside the drainage sleeve 5 flows away from the middle of the two stirring blades 24.

[0064] The drainage sleeve 5 is used to extend the flow direction of the solution in the water washing tank 1, so that the flow range of the solution in the water washing tank 1 covers more different depth levels, enabling the solution at different depth levels to be mixed, and thus making the mixing effect of the solution in the water washing tank 1 better.

[0065] Since sediment will continuously be generated during the mixing process of crude oil and lye, the sediment in the mixed solution not only affects the deacidification effect but also affects the subsequent quality of crude oil extraction. Therefore, a filter element 6 is fixedly connected to the drainage sleeve 5 away from the stirring blade 24, and the filter element 6 abuts against the inner side wall of the water washing tank 1 to divide the internal space of the water washing tank 1 into a mixing area 15 and a filtering area 16. The solution in the filtering area 16 enters the mixing area 15 after being filtered by the filter element 6, and the oil outlet pipe 14 communicates with the mixing area 15 (combined Figure 1 ), so that the solution finally discharged from the oil outlet pipe 14 in the mixing area 15 is filtered by the filter element 6.

[0066] The filter element 6 is used to make the sediment generated by the mixing of crude oil and lye flow from the mixing area 15 outside the drainage sleeve 5 to the filtering area 16, and then the solution flows from the inner side of the drainage sleeve 5 to the mixing area 15 after being filtered by the filter element 6. At this time, the sediment generated by the mixing of crude oil and lye is filtered by the filter element 6 in the filtering area 16. The filter element 6 is used to collect the sediment generated by the mixing of crude oil and lye, which not only reduces the influence of the sediment in the mixed solution on the deacidification effect but also prevents the sediment generated by the mixing of crude oil and lye from entering the subsequent refining process and affecting the quality of the subsequent crude oil.

[0067] In this embodiment, the filter element 6 includes a filter plate 61 and a filter net 62. The filter plate 61 is fixedly connected to the drainage sleeve 5, the filter net 62 is installed on the filter plate 61, and the filter net 62 is located at the opening of the drainage sleeve 5. The filter plate 61 is provided with a liquid inlet 611 on the outer side of the drainage sleeve 5. A movable rod 612 is fixedly connected to the side of the filter plate 61 facing the filtering area 16, and a movable plug 613 is slidably connected to the movable rod 612. The side of the movable plug 613 facing the liquid inlet 611 is tapered. The movable plug 613 is provided to prevent the mixed solution in the filtering area 16 from flowing into the mixing area 15 through the liquid inlet 611 during the reciprocating movement of the drainage sleeve 5 along the sliding rod 23 with the filter plate 61 and the filter net 62, so as to avoid the sediment generated by the mixing of crude oil and lye from flowing into the mixing area 15 again.

[0068] Driven by the stirring blade 24, the mixed solution in the mixing area 15 of the water washing tank 1 continuously flows into the filtering area 16 from the liquid inlet 611. The mixed solution impacts the movable plug 613, causing the movable plug 613 to move away from the filter plate 61 on the movable rod 612, thereby releasing the blockage of the liquid inlet 611 by the movable plug 613, and further enabling the mixed solution in the mixing area 15 to smoothly flow into the filtering area 16 through the liquid inlet 611.

[0069] When the mixed solution in the filtering area 16 is to flow into the mixing area 15 from the liquid inlet 611, the mixed solution impacts the movable plug 613, causing the movable plug 613 to be pressed tightly against the filter plate 61 on the movable rod 612, thereby enabling the movable plug 613 to block the liquid inlet 611, and further preventing the mixed solution in the filtering area 16 from flowing into the mixing area 15 from the liquid inlet 611.

[0070] Furthermore, the mixed solution in the filtering area 16 can only flow into the mixing area 15 after being filtered by the filter net 62. Therefore, the sediment generated by the mixing of crude oil and lye can be collected by the filter net 62. The influence of the sediment in the mixed solution on the deacidification effect is reduced, and at the same time, the sediment generated by the mixing of crude oil and lye is prevented from entering the subsequent refining process and affecting the quality of the subsequent crude oil.

[0071] Refer to Figure 4 and Figure 5 As shown in, a locking seat 621 is fixedly connected to the side of the filter net 62 close to the filter plate 61. A plurality of convex plates 622 are fixedly connected to the edge of the locking seat 621. In this embodiment, 3 convex plates 622 are provided. In other embodiments, it can also be set to 2, 4, 5, etc. according to design requirements. A locking groove 623 is formed on the convex plate 622. An installation groove 614 is formed on the filter plate 61. Three limiting blocks 615 corresponding to the convex plates 622 are fixedly connected to the opening of the installation groove 614. A locking convex block 616 is fixedly connected to the limiting block 615 close to the inside of the installation groove 614. The locking convex block 616 abuts against the locking groove 623 on the convex plate 622.

[0072] When the filter net 62 needs to be installed, the locking seat 621 is inserted into the installation groove 614, and the locking seat 621 is rotated so that the convex plate 622 abuts against the limiting block 615. At the same time, the locking convex block 616 is inserted into the locking groove 623 to complete the locking of the filter net 62.

[0073] When the filter net 62 needs to be disassembled, the locking seat 621 is rotated so that the locking convex block 616 disengages from the locking groove 623. Then the locking seat 621 is rotated so that the convex plate 622 is misaligned with the limiting block 615, and the locking seat 621 can be disengaged from the installation groove 614.

[0074] In an alternative embodiment, the filter screen 62 bulges towards the filtration area 16. One end of the filter screen 62 close to the filter plate 61 is fixedly connected with a partition screen 63. The partition screen 63 is inclined towards the filter plate 61, and there is a gap between the partition screen 63 and the filter plate 61. When the filter screen 62 reciprocates with the drainage sleeve 5, the sediment intercepted by the filter screen 62 can be gradually moved towards the filter plate 61. The setting of the partition screen 63 can intercept the sediment close to the filter plate 61, thereby reducing the sediment close to the filter plate 61 from blocking the filter screen 62 again and improving the smoothness of the filter screen 62 during the filtration process.

[0075] The implementation principle of the perilla oil extraction device according to the embodiment of the present application is as follows: The crude oil is injected into the water washing tank 1 from the oil inlet pipe 12, and at the same time, the lye is also injected into the infusion tank. Then, the driving motor 21 is started, and the driving motor 21 drives the rotating shaft 22 to rotate. The rotating shaft 22 drives the sliding rod 23 to rotate, and the sliding rod 23 rotates to drive the two stirring blades 24 with opposite inclination angles to rotate. When the two stirring blades 24 rotate, they drive the solution in the water washing tank 1 to flow towards the space between the two stirring blades 24, so that the crude oil and the lye are impact-mixed.

[0076] When the driving motor 21 drives the rotating shaft 22, the rotating shaft 22 drives the reciprocating screw rod 32 to rotate through the transmission of the driving gear 41 and the transmission gear 42. The reciprocating screw rod 32 rotates to drive the sliding rod 34 to drive the sliding rod 23 to reciprocate. The reciprocating movement of the sliding rod 23 drives the stirring blade 24 to reciprocate at different depths in the water washing tank 1, driving the mixed solution at different depths in the water washing tank 1 to flow towards the middle of the stirring blade 24. At the same time, the drainage sleeve 5 is used to cover the stirring blade 24, so that the solution inside the drainage sleeve 5 flows towards the middle of the two stirring blades 24, while the solution outside the drainage sleeve 5 flows away from the middle of the two stirring blades 24. The drainage sleeve 5 is used to separate the mixed solution flowing towards the middle of the two stirring blades 24 and flowing away from the middle of the two stirring blades 24 in the water washing tank 1, so that the mixed solution in the water washing tank 1 needs to flow around the drainage sleeve 5 when flowing. The drainage sleeve 5 is used to extend the length of the solution circulation in the water washing tank 1, so that the flow range of the solution in the water washing tank 1 covers more different depth levels, and then the stirring blade 24 can fully mix the crude oil and the lye at different depth layers in the water washing tank 1.

[0077] During the process of mixing crude oil and lye, the filter screen 62 filters the sediment generated by the mixing of crude oil and lye. During the reciprocating movement of the filter screen 62 along with the sliding rod 34 and the sliding bar 23, the intercepted sediment moves reciprocally, reducing the blockage of the sediment on the filter screen 62. At the same time, the sediment intercepted by the filter screen 62 gradually moves towards the filter plate 61 during the reciprocating movement, and the partition net 63 intercepts the sediment close to the filter plate 61, thereby reducing the sediment close to the filter plate 61 from blocking the filter screen 62 again and improving the smoothness of the filter screen 62 during the filtering process.

[0078] By using the cooperation of the mixing component 2, the sliding component 3, the transmission component 4 and the drainage sleeve 5, the stirring blades 24 can make the mixed solution at different depths flow towards the middle of the two stirring blades 24. The sliding component 3 controls the movement of the stirring blades 24 in the mixed solution at different depths, and the drainage sleeve 5 separates the mixed solution flowing towards the middle of the two stirring blades 24 and flowing away from the middle of the two stirring blades 24 in the water washing tank 1, so that the mixed solution in the water washing tank 1 needs to flow around the drainage sleeve 5 when flowing. By using the drainage sleeve 5 to extend the length of the solution circulation in the water washing tank 1, the flow range of the solution in the water washing tank 1 covers more different depth levels, and then the crude oil and lye at different depth layers in the water washing tank 1 are fully mixed, so that the degumming degree of the crude oil at different depth layers is consistent.

[0079] At the same time, the filter element 6 collects the sediment generated by the mixing of crude oil and lye, which not only reduces the influence of the sediment in the mixed solution on the degumming effect, but also avoids the influence caused by the sediment generated by the mixing of crude oil and lye entering the subsequent refining process, thereby further improving the quality of the subsequent crude oil extraction.

[0080] The embodiment of the present application also discloses a method for extracting perilla oil.

[0081] Refer to Figure 6 , the method for extracting perilla oil includes steps of S1, material preparation → S2, crude oil input → S3, lye input → S4, mixing and filtering → S5, crude oil discharge to complete the degumming of crude oil.

[0082] S1. Material preparation, specifically;

[0083] Provide perilla crude oil, heat the perilla crude oil, control the initial temperature of the perilla crude oil at 30 - 35 °C, provide lye, control the lye concentration at 12.59% - 14.24%, and provide a flocculant;

[0084] S2. Crude oil input, specifically;

[0085] Transport the perilla crude oil with an initial temperature of 30 - 35 °C to the water washing tank 1 through the oil inlet pipe 12;

[0086] S3. Lye input, specifically:

[0087] The lye with a concentration of 12.59% - 14.24% is transported to the water washing tank 1 through the infusion pipe 13.

[0088] S4. Mixing and filtration, specifically:

[0089] Start the drive motor 21, and use the drive motor 21 to drive the stirring blade 24 to rotate, so that the mixture of lye and crude oil continuously collides and mixes in the water washing tank 1.

[0090] S5. Crude oil discharge, specifically:

[0091] Stop the drive motor 21, and discharge the solution in the water washing tank 1 through the oil outlet pipe 14.

[0092] First, provide perilla crude oil, lye, and flocculant. Heat the perilla crude oil and control the initial temperature of the perilla crude oil at 30 - 35°C. At the same time, control the lye concentration at 12.59% - 14.24%. Transport the perilla crude oil with an initial temperature of 30 - 35°C to the water washing tank 1 through the inlet pipe 12. At the same time, transport the lye with a concentration of 12.59% - 14.24% to the water washing tank 1 through the infusion pipe 13. Then transport the flocculant to the water washing tank 1 through the infusion pipe 13.

[0093] Start the drive motor 21, and use the drive motor 21 to drive the stirring blade 24 to rotate, so that the mixture of lye and crude oil continuously collides and mixes in the water washing tank 1. Finally, stop the drive motor 21, and discharge the solution in the water washing tank 1 through the oil outlet pipe 14.

[0094] The above are all the preferred embodiments of this application. It does not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. An extraction device for perilla oil, characterized in that, Including: A water-washing tank (1), a cover plate (11) is installed on the upper side of the water-washing tank (1), an oil inlet pipe (12) and an infusion pipe (13) are fixedly connected to the cover plate (11), an oil outlet pipe (14) is fixedly connected to the side wall of the water-washing tank (1), and the oil inlet pipe (12), the infusion pipe (13) and the oil outlet pipe (14) are all communicated to the inside of the water-washing tank (1); A mixing assembly (2), including a driving motor (21), a rotating shaft (22), a sliding rod (23) and a plurality of stirring blades (24), the driving motor (21) is fixedly connected to the cover plate (11), the rotating shaft (22) is arranged in the water-washing tank (1), and the rotating shaft (22) is fixedly connected to the output shaft of the driving motor (21), the sliding rod (23) is slidably connected to the rotating shaft (22) along the axis direction of the rotating shaft (22), the stirring blades (24) are all fixedly connected to the sliding rod (23), and the inclination angles of adjacent stirring blades (24) are opposite; A sliding assembly (3) is installed in the water-washing tank (1), and the sliding assembly (3) is connected to the sliding rod (23), and the sliding assembly (3) is used to drive the sliding rod (23) to reciprocate along the length direction of the rotating shaft (22); and A transmission assembly (4) is installed between the rotating shaft (22) and the sliding assembly (3), so that when the rotating shaft (22) rotates, it drives the sliding assembly (3) to drive the sliding rod (23) to reciprocate; The sliding assembly (3) includes a mounting seat (31), a reciprocating lead screw (32), a guide rod (33) and a sliding rod (34), the mounting seat (31) is fixedly connected to the inner side wall of the water-washing tank (1), the reciprocating lead screw (32) is rotatably connected to the mounting seat (31), and the axis of the reciprocating lead screw (32) is parallel to the axis of the sliding rod (23), one end of the reciprocating lead screw (32) passes through the water-washing tank (1) and is connected to the transmission assembly (4); the axis of the guide rod (33) is fixedly connected to the mounting seat (31) parallel to the axis direction of the reciprocating lead screw (32), the sliding rod (34) is threadedly connected to the reciprocating lead screw (32), and the sliding rod (34) is sleeved on the guide rod (33), a ring groove (25) is formed on the sliding rod (23), and one end of the sliding rod (34) is inserted into the ring groove (25); There are two stirring blades (24), and the liquid outlets of the two stirring blades (24) are located on the side close to each other, and two drainage sleeves (5) are fixedly connected to the sliding rod (34), and the two drainage sleeves (5) are respectively sleeved on the sides of the stirring blades (24) away from each other; A filter member (6) is fixedly connected to the drainage sleeve (5) away from the stirring blade (24). The filter member (6) abuts against the inner side wall of the water washing tank (1) to divide the inner space of the water washing tank (1) into a mixing area (15) and a filtering area (16). The solution in the filtering area (16) enters the mixing area (15) after being filtered by the filter member (6), and the oil outlet pipe (14) communicates with the mixing area (15). The filter member (6) includes a filter plate (61) and a filter net (62). The filter plate (61) is fixedly connected to the drainage sleeve (5). The filter net (62) is installed on the filter plate (61), and the filter net (62) is located at the opening of the drainage sleeve (5). The filter plate (61) is provided with a liquid inlet (611) on the outer side of the drainage sleeve (5). A movable plug (613) is installed on the filter plate (61), and the movable plug (613) is used to prevent the solution in the filtering area (16) from flowing into the mixing area (15) through the liquid inlet (611).

2. The extraction device for perilla oil according to claim 1, wherein: The transmission assembly (4) includes a driving gear (41) and a transmission gear (42). The driving gear (41) is coaxially and fixedly connected to the rotating shaft (22), the transmission gear (42) is coaxially and fixedly connected to the reciprocating lead screw (32), and the driving gear (41) meshes with the transmission gear (42).

3. The extraction device for perilla oil according to claim 2, characterized in that: The side of the filter net (62) facing the filtering area (16) bulges. One end of the filter net (62) close to the filter plate (61) is fixedly connected with a partition net (63). The partition net (63) is inclined towards the filter plate (61), and there is a gap between the partition net (63) and the filter plate (61).

4. The extraction device of perilla oil according to claim 3, wherein: A movable rod (612) is fixedly connected to the side of the filter plate (61) facing the filtering area (16). The movable plug (613) is slidably connected to the movable rod (612), and the side of the movable plug (613) facing the liquid inlet (611) is tapered.

5. The extraction device of perilla oil according to claim 1, characterized in that: A locking seat (621) is fixedly connected to the side of the filter net (62) close to the filter plate (61). A plurality of convex plates (622) are fixedly connected to the edge of the locking seat (621). Locking grooves (623) are formed in the convex plates (622). An installation groove (614) is formed in the filter plate (61). A plurality of limiting blocks (615) are fixedly connected to the opening of the installation groove (614). A locking convex block (616) is fixedly connected to the limiting block (615) close to the inside of the installation groove (614). When the locking seat (621) is installed in the installation groove (614), the convex plates (622) abut against the limiting blocks (615), and the locking convex block (616) abuts against the locking groove (623).

6. A method for extracting perilla oil, which is applied to the perilla oil extraction device according to any one of claims 1-5, and is characterized in that: S1. Material preparation: Provide crude perilla oil, heat the crude perilla oil, control the initial temperature of the crude perilla oil at 30 - 35 °C, provide lye, control the lye concentration at 12.59% - 14.24%, and provide a flocculant. S2. Input of crude oil: Transport the crude perilla oil with an initial temperature of 30 - 35 °C to the water - washing tank (1) through the oil inlet pipe (12). S3. Input of lye: Transport the lye with a concentration of 12.59% - 14.24% to the water - washing tank (1) through the liquid - conveying pipe (13), and transport the flocculant to the water - washing tank (1) through the liquid - conveying pipe (13). S4. Mixing and filtration: Start the drive motor (21), use the drive motor (21) to drive the stirring blade (24) to rotate, so that the mixture of lye and crude oil continuously collides and mixes in the water - washing tank (1). S5. Discharge of crude oil: Stop the drive motor (21), and discharge the solution in the water - washing tank (1) through the oil outlet pipe (14).

Images