Extraction device and extraction method of perilla oil

Abstract

The invention relates to the technical field of crude oil extraction, in particular to a perilla oil extraction device and method, and the perilla oil extraction device comprises a washing tank, a mixing assembly, a sliding assembly and a transmission assembly. A cover plate is installed on the upper side of the washing tank, an oil inlet pipe and an infusion pipe are fixedly connected to the cover plate, and an oil outlet pipe is fixedly connected to the side wall of the washing tank. The mixing assembly comprises 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 washing tank in a penetrating mode, the sliding rod is slidably connected to the rotating shaft in the axis direction of the rotating shaft, the stirring blades are fixedly connected to the sliding rod, and the inclination angles of the adjacent stirring blades are opposite; the sliding assembly drives the sliding rod to reciprocate in the length direction of the rotating shaft, and the transmission assembly is installed between the rotating shaft and the sliding assembly. The method has the effect of enabling the deacidification degrees of the crude oil in different depth layers to be consistent.

Description

Technical Field

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

[0002] Perilla oil is an edible oil extracted from perilla seeds. Perilla oil contains 40%-65% α-linolenic acid, the highest content among known vegetable oils. Perilla seeds are pressed at low temperatures to obtain crude oil, which contains many impurities, such as fat-soluble impurities. The heat and oxygen stability of fat-soluble impurities are poor, which makes the crude oil easy to oxidize and deteriorate. It is not suitable for long-term storage and cannot meet people's needs.

[0003] In the process of removing fat-soluble impurities, a certain amount of alkali solution is usually added to the crude oil under stirring, and the alkali solution and free fatty acids in the crude oil are neutralized to form soap. Some coagulants or flocculants are then added to make the precipitate condense into larger particles and separate and remove.

[0004] At present, a refined oil equipment with publication number 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 a stirring rod, the stirring motor is fixedly installed on the top of the deacidification and dehydration tank, the output shaft end of the stirring motor passes through the top of the deacidification and dehydration tank and is fixedly connected to the stirring shaft, the stirring rods are equidistantly distributed on the stirring shaft, and starting the stirring motor can drive the stirring shaft and the stirring rod to rotate. The alkali solution and the crude oil are mixed by injecting alkali solution and crude oil into the deacidification and dehydration tank, and then using the stirring motor to drive the stirring rod in the deacidification and dehydration tank to rotate.

[0005] With regard to the above-mentioned related technologies, in the process of mixing the alkali solution and the crude oil in the deacidification and dehydration tank by using a stirring rod, the mixing method is single, and only the alkali solution and the crude oil in the same layer can be fully mixed. It is difficult to mix the alkali solution and the crude oil with large depth differences in the deacidification and dehydration tank, which easily makes the mixing ratio of the alkali solution and the crude oil in different depth layers of the deacidification and dehydration tank different, resulting in different deacidification degrees of the crude oil in different depth layers, affecting the subsequent crude oil extraction quality. Summary of the invention

[0006] In order to make the deacidification degree of alkali solution and crude oil at different depth layers consistent, the present application provides a perilla oil extraction device and an extraction method thereof.

[0007] The present application provides a perilla oil extraction device that adopts the following technical solution: A device for extracting perilla oil, comprising: A water washing tank, wherein a cover plate is installed on the upper side of the water washing tank, an oil inlet pipe and a liquid delivery 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 liquid delivery pipe and the oil outlet pipe are all connected to the water washing tank; A mixing assembly, comprising a driving motor, a rotating shaft, a sliding rod and a plurality of stirring blades, wherein the driving motor is fixedly connected to the cover plate, the rotating shaft is disposed in the 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 fixedly connected to the sliding rod, and the inclination angles of adjacent stirring blades are opposite; a sliding assembly installed in the washing tank and connected to the sliding rod, and used for driving the sliding rod to reciprocate along the length direction of the rotating shaft; and The transmission assembly is installed between the rotating shaft and the sliding assembly so that when the rotating shaft rotates, the sliding assembly drives the sliding rod to move back and forth.

[0008] By adopting the above technical solution, crude oil is injected into the water washing tank from the oil inlet pipe, and alkali solution is also injected into the infusion tank. Then the driving motor is started, the driving motor drives the rotating shaft to rotate, the rotating shaft drives the sliding rod to rotate, the sliding rod rotates to drive two adjacent stirring blades with opposite inclination angles to rotate, when the two adjacent stirring blades rotate, the solution in the water washing tank is driven to flow between the two adjacent stirring blades, so that the crude oil and the alkali solution are impact mixed.

[0009] 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 move back and forth, so that the stirring blade can fully mix the crude oil and alkali solution at different depths in the washing tank, so that the deacidification degree of the crude oil at different depths is consistent, thereby improving the quality of subsequent crude oil extraction.

[0010] Optionally, the sliding assembly includes a mounting seat, a reciprocating screw, a guide rod and a sliding rod, the mounting seat is fixedly connected to the inner wall of the washing tank, the reciprocating screw is rotatably connected to the mounting seat, and the axis of the reciprocating screw is parallel to the axis of the sliding rod, one end of the reciprocating screw passes through the washing tank and is connected to the transmission assembly; the axis of the guide rod is parallel to the axis of the reciprocating screw and is fixedly connected to the mounting seat, the sliding rod is threadedly connected to the reciprocating screw, and the sliding rod is sleeved on the guide rod, the sliding rod is provided with an annular groove, and one end of the sliding rod is inserted in the annular groove.

[0011] By adopting the above technical solution, the transmission assembly is used to drive the reciprocating screw to rotate, and the rotation of the reciprocating screw drives the sliding rod to reciprocate along the length direction of the guide rod, thereby driving the sliding rod to reciprocate along its own axis direction.

[0012] Optionally, the transmission member includes a driving gear and a transmission gear, the driving gear is coaxially fixedly connected to the rotating shaft, the transmission gear is coaxially fixedly connected to the reciprocating screw, and the driving gear is meshed with the transmission gear.

[0013] By adopting the above technical solution, when the rotating shaft rotates, it drives the driving gear to rotate, the driving gear rotates to drive the transmission gear, and the rotating gear rotates to drive the reciprocating screw to rotate, so that the reciprocating screw drives the sliding rod to drive the sliding rod to reciprocate.

[0014] Optionally, two stirring blades are provided, and the liquid outlets of the two stirring blades are located on the side close to each other, and two drainage sleeves are fixedly connected to the sliding rod, and the two drainage sleeves are correspondingly arranged on the side of the stirring blades away from each other.

[0015] By adopting the above technical solution, the setting 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 toward the middle of the two stirring blades, while the solution outside the drainage sleeve flows away from the middle of the two stirring blades, thereby making the flow range of the solution in the water washing tank cover more different depth levels, thereby achieving a better mixing effect of the solution in the water washing tank.

[0016] Optionally, the drainage sleeve is fixedly connected to a filter element away from the stirring blade, and the filter element abuts against the inner wall of the water washing tank to separate the internal space of the water washing tank into a mixing zone and a filtering zone. The solution in the filtering zone enters the mixing zone after being filtered by the filter element, and the oil outlet pipe is connected to the mixing zone.

[0017] By adopting the above technical solution, the filter element is arranged so that the precipitate produced by the mixture of the crude oil and the alkali solution flows from the mixing zone outside the drainage sleeve to the filtering zone, and then the solution is filtered by the filter element and then flows from the inside of the drainage sleeve to the mixing zone. At this time, the precipitate produced by the mixture of the crude oil and the alkali solution is filtered by the filter element in the filtering zone, and the precipitate produced by the mixture of the crude oil and the alkali solution is collected by the filter element, so as to prevent the precipitate produced by the mixture of the crude oil and the alkali solution from entering the subsequent refining process and affecting the subsequent crude oil quality.

[0018] Optionally, the filter element includes a filter plate and a filter net, the filter plate is fixedly connected to the drainage sleeve, the filter net is installed on the filter plate, and the filter net is located at the opening of the drainage sleeve, the filter plate is located on the outside of the drainage sleeve and has a liquid inlet, and a movable plug is installed on the filter plate, and the movable plug is used to prevent the solution in the filtration zone from flowing into the mixing zone through the liquid inlet.

[0019] By adopting the above technical scheme, the filter plate, the filter screen, the drainage sleeve, the liquid inlet and the movable plug are coordinated, so that the mixed solution in the mixing zone in the washing tank continuously flows from the liquid inlet into the filtering zone under the drive of the stirring blade, and then the stirring blade also simultaneously filters the mixed solution in the filtering zone through the filter screen and then flows into the mixing zone, so that the precipitate produced by the mixing of crude oil and alkali solution is collected by the filter screen.

[0020] The movable plug prevents the mixed solution in the filtration zone from flowing into the mixing zone through the liquid inlet when the filter plate and the filter screen reciprocate along the sliding rod as the drainage sleeve moves back and forth, thereby preventing the precipitate generated by the mixing of crude oil and alkali solution from flowing into the mixing zone again.

[0021] Optionally, the filter screen protrudes toward one side of the filter area, and a spacer is fixedly connected to one end of the filter screen close to the filter plate. The spacer is inclined toward the filter plate, and there is a gap between the spacer and the filter plate.

[0022] By adopting the above technical solution, the filter net can gradually move the sediment intercepted by the filter net toward the filter plate as the drainage sleeve moves back and forth, and the setting of the partition net can intercept the sediment close to the filter plate, thereby reducing the sediment close to the filter plate from blocking the filter net again, thereby improving the patency of the filter net during the filtration process.

[0023] Optionally, a movable rod is fixedly connected to a side of the filter plate facing the filter area, the movable plug is slidably connected to the movable rod, and a side of the movable plug facing the liquid inlet is arranged in a conical shape.

[0024] By adopting the above technical solution, when the mixed solution in the mixing zone flows from the liquid inlet into the filtering zone, the mixed solution impacts the movable plug, causing the movable plug to move away from the filter plate on the movable rod, thereby releasing the blockage of the liquid inlet by the movable plug, thereby allowing the mixed solution in the mixing zone to flow smoothly from the liquid inlet into the filtering zone.

[0025] When the mixed solution in the filtration zone is about to flow into the mixing zone from the liquid inlet, the mixed solution impacts the movable plug, causing the movable plug to press against the filter plate on the movable rod, thereby blocking the liquid inlet and preventing the mixed solution in the filtration zone from flowing into the mixing zone from the liquid inlet.

[0026] 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.

[0027] 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.

[0028] A method for extracting perilla oil, comprising: 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; 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; 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; 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; S5. Remove the crude oil, stop driving the motor, and discharge the solution in the washing tank through the oil outlet pipe.

[0029] By adopting the above technical scheme, the deacidification of crude oil is completed by using the steps of S1, material preparation → S2, crude oil input → S3, alkali solution input → S4, mixed filtration → S5, crude oil removal.

[0030] First, provide perilla crude oil, alkali solution and coagulant, heat the perilla crude oil, control the initial temperature of the perilla crude oil at 30-35°C, and control the concentration of the alkali solution 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 oil inlet pipe, and transport the alkali solution with a concentration of 12.59%-14.24% to the water washing tank through the infusion pipe, and then transport the coagulant to the water washing tank through the infusion pipe. Then start the drive motor, use the drive motor to drive the stirring blade to rotate, so that the mixture of the alkali solution and the crude oil continuously collides and mixes in the water washing tank, and finally stop the drive motor, and discharge the solution in the water washing tank through the oil outlet pipe.

[0031] In summary, the present application includes at least one of the following beneficial technical effects: Through the cooperation of the water washing tank, the cover plate, the oil inlet pipe, the liquid delivery pipe, the oil outlet pipe, the driving motor, the rotating shaft, the sliding rod, the plurality of stirring blades, the sliding assembly and the transmission assembly, two adjacent stirring blades with opposite inclination angles are rotated, driving the solution in the water washing tank toward between the two adjacent stirring blades for impact mixing, and at the same time, the sliding assembly drives the stirring blades on the sliding rod to move back and forth, so that the stirring blades can fully mix the crude oil and alkali solution at different depths in the water washing tank, so that the deacidification degree of the crude oil at different depths is consistent, thereby improving the quality of subsequent crude oil extraction; Through the cooperation of two stirring blades and two drainage sleeves, the flow direction of the solution in the water washing tank is separated, and the path of the unidirectional solution flow in the water washing tank is extended, so that the flow range of the solution in the water washing tank covers more different depth levels, thereby achieving a better mixing effect of the solution in the water washing tank; Through the cooperation of the filter plate, filter screen, spacer screen, sliding assembly and transmission assembly, when the stirring blade is driven to rotate, the stirring blade, filter plate, filter screen and spacer screen are also driven to reciprocate. Not only can the filter screen be used to collect the precipitate produced by the mixture of the crude oil and alkali solution when the crude oil and alkali solution at different depths in the washing tank are fully mixed, but the reciprocating motion of the filter plate and filter screen can also gradually move the precipitate intercepted by the filter screen toward the filter plate, so that the spacer screen can intercept the precipitate close to the filter plate, thereby reducing the precipitate close to the filter plate from blocking the filter screen again, thereby improving the patency of the filter screen during the filtration process. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of a perilla oil extraction device in an embodiment of the present application.

[0033] Figure 2 yes Figure 1 Cross-sectional view at AA in the middle.

[0034] Figure 3 It is a schematic diagram of the internal structure of a perilla oil extraction device in an embodiment of the present application.

[0035] Figure 4 It is a schematic diagram of the structure of the filter plate in the embodiment of the present application.

[0036] Figure 5 It is a schematic diagram of the structure of the filter screen in the embodiment of the present application.

[0037] Figure 6 It is a schematic flow chart of a method for extracting perilla oil in an embodiment of the present application.

[0038] Description of reference numerals: 1. Washing tank; 11. Cover plate; 12. Oil inlet pipe; 13. Liquid infusion pipe; 14. Oil outlet pipe; 15. Mixing zone; 16. Filtering zone; 2. Mixing assembly; 21. Drive motor; 22. Rotating shaft; 23. Sliding rod; 24. Stirring blade; 25. Annular groove; 3. Sliding assembly; 31. Mounting seat; 32. Reciprocating screw rod; 33. Guide rod; 34. Sliding rod; 4. Transmission assembly; 41. Drive gear; 42. Transmission gear; 5. Drainage sleeve; 6. Filter element; 61. Filter plate; 611. Liquid inlet; 612. Movable rod; 613. Movable plug; 614. Mounting groove; 615. Limit block; 616. Locking convex block; 62. Filter net; 621. Locking seat; 622. Convex plate; 623. Locking groove; 63. Partition net. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-6 This application is described in further detail.

[0040] The embodiment of the present application discloses a device for extracting perilla oil.

[0041] Reference Figure 1 and Figure 2The 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, and an oil inlet pipe 12 and a liquid delivery 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. The oil inlet pipe 12, the liquid delivery pipe 13 and the oil outlet pipe 14 are all connected to the water washing tank 1. The mixing component 2 includes 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 penetrated 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 axial direction of the rotating shaft 22, and 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 assembly 3 is installed in the washing tank 1 to drive the sliding rod 23 to reciprocate along the length direction of the rotating shaft 22. The transmission assembly 4 is installed between the rotating shaft 22 and the sliding assembly 3, so that when the rotating shaft 22 rotates, the sliding assembly 3 drives the sliding rod 23 to reciprocate. The sliding rod 23 rotates to drive two stirring blades 24 with opposite inclination angles to rotate. When the two stirring blades 24 rotate, the solution in the washing tank 1 flows toward between the two stirring blades 24. At the same time, the sliding assembly 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 alkali solution at different depths in the washing tank 1, so that the deacidification degree of the crude oil at different depths is consistent, thereby improving the quality of subsequent crude oil extraction.

[0042] Reference Figure 3 In order to make the sliding assembly 3 more stably drive the sliding rod 23 to reciprocate along the length direction of the rotating shaft 22, the sliding assembly 3 in this embodiment is provided with 3 groups, and the 3 groups of sliding assemblies 3 are evenly distributed around the sliding rod 23. In other embodiments, the sliding assembly 3 can also be provided with 2 groups, 4 groups, 5 groups, etc., and the 3 groups of sliding assemblies 3 are used to jointly drive the sliding rod 23 to move, so that the movement of the sliding rod 23 is more stable.

[0043] Reference Figure 2 and Figure 3 The sliding assembly 3 in this embodiment includes a mounting seat 31, a reciprocating screw rod 32, a guide rod 33 and a sliding rod 34. The mounting seat 31 is fixedly connected to the inner wall of the washing tank 1, and the reciprocating screw rod 32 is rotatably connected to the mounting seat 31. The axis of the reciprocating screw rod 32 is parallel to the axis of the sliding rod 23. One end of the reciprocating screw rod 32 passes through the washing tank 1 and is connected to the transmission assembly 4. When the rotating shaft 22 rotates, the reciprocating screw rod 32 can be driven to rotate through the transmission assembly 4.

[0044] The axis of the guide rod 33 is parallel to the axis of the reciprocating screw rod 32 and is fixedly connected to the mounting seat 31. The sliding rod 34 is threadedly connected to the reciprocating screw rod 32, and the sliding rod 34 is sleeved on the guide rod 33. The guide rod 33 guides the sliding rod 34, and the thread of the reciprocating screw rod 32 is connected to the thread of the sliding rod 34, so that the sliding rod 34 can reciprocate along the length direction of the reciprocating screw rod 32 when the thread of the reciprocating screw rod 32 rotates.

[0045] An annular groove 25 is formed on the sliding rod 23 , and one end of the sliding rod 34 is inserted into the annular groove 25 . The three sliding rods 34 abut against the sliding rod 23 , so that the reciprocating motion of the sliding rod 34 drives the sliding rod 23 to reciprocate.

[0046] In an optional embodiment, the end of the sliding rod 34 abuts against the bottom wall of the annular groove 25, so that the three sliding rods 34 abut against the sliding rod 23, making the sliding rod 23 more stable during rotation. At the same time, a sliding wheel can be set at the end of the sliding rod 34 to reduce the friction between the sliding rod 34 and the sliding rod 23.

[0047] The transmission assembly 4 is used to drive the reciprocating screw rod 32 to rotate, and the rotation of the reciprocating screw rod 32 drives the sliding rod 34 to reciprocate along the length direction of the guide rod 33, thereby driving the sliding rod 23 to reciprocate along its own axis direction.

[0048] The transmission member includes a driving gear 41 and a transmission gear 42. The driving gear 41 is coaxially fixedly connected to the rotating shaft 22. There are three transmission gears 42. The three transmission gears 42 are coaxially fixedly connected to the three reciprocating screw rods 32 in a one-to-one correspondence, and the three transmission gears 42 are all meshed with the driving gear 41. The oil inlet pipe 12 and the liquid infusion pipe 13 are respectively inserted 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 gear 42, and the rotating gear rotates to drive the reciprocating screw rod 32 to rotate, so that the reciprocating screw rod 32 drives the sliding rod 34 to drive the sliding rod 23 to reciprocate.

[0049] In this embodiment, two stirring blades 24 are provided, and the liquid outlets of the two stirring blades 24 are located on the side close to each other. Two drainage sleeves 5 are fixedly connected to the sliding rod 34, and the two drainage sleeves 5 are sleeved on the side away from each other of the stirring blades 24 in a one-to-one correspondence. The drainage sleeves 5 are provided to separate the solution, thereby extending the solution circulation length in the washing tank 1, so that the solution inside the drainage sleeves 5 flows toward the middle of the two stirring blades 24, and the solution outside the drainage sleeves 5 flows away from the middle of the two stirring blades 24.

[0050] The drainage sleeve 5 is used to extend the flow direction of the solution in the washing tank 1, so that the flow range of the solution in the washing tank 1 covers more different depth levels, so that solutions at different depth levels are mixed, thereby achieving a better mixing effect of the solution in the washing tank 1.

[0051] Since the crude oil and the alkali solution will continuously produce precipitates during the mixing process, the precipitates in the mixed solution will not only affect the deacidification effect, but also affect the subsequent crude oil extraction quality. Therefore, the drainage sleeve 5 is fixedly connected with a filter 6 away from the stirring blade 24, and the filter 6 is abutted against the inner 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 is filtered by the filter 6 and enters the mixing area 15, and the oil outlet pipe 14 is connected to the mixing area 15 (combined with the oil outlet pipe 14). Figure 1 ), so that the solution in the mixing zone 15 finally discharged from the oil outlet pipe 14 is filtered by the filter element 6.

[0052] The filter element 6 is used to make the precipitate generated by the mixture of the crude oil and the alkali solution flow from the mixing zone 15 outside the drainage sleeve 5 to the filtering zone 16, and then the solution is filtered by the filter element 6 and then flows from the inside of the drainage sleeve 5 to the mixing zone 15. At this time, the precipitate generated by the mixture of the crude oil and the alkali solution is filtered by the filter element 6 in the filtering zone 16. The precipitate generated by the mixture of the crude oil and the alkali solution is collected by the filter element 6, which not only reduces the influence of the precipitate in the mixed solution on the deacidification effect, but also prevents the precipitate generated by the mixture of the crude oil and the alkali solution from entering the subsequent refining process to affect the subsequent crude oil quality.

[0053] In this embodiment, the filter element 6 includes a filter plate 61 and a filter screen 62. The filter plate 61 is fixedly connected to the drainage sleeve 5, and the filter screen 62 is installed on the filter plate 61, and the filter screen 62 is located at the opening of the drainage sleeve 5. The filter plate 61 is located on the outside of the drainage sleeve 5 and is provided with a liquid inlet 611. The filter plate 61 is fixedly connected to a movable rod 612 on the side of the filter plate 61 facing the filter area 16, and a movable plug 613 is slidably connected to the movable rod 612. The movable plug 613 is set in a conical shape on the side facing the liquid inlet 611. The movable plug 613 is set to prevent the mixed solution in the filter area 16 from flowing into the mixing area 15 through the liquid inlet 611 during the reciprocating movement of the filter plate 61 and the filter screen 62 along the sliding rod 23 with the drainage sleeve 5, thereby preventing the precipitate generated by the mixture of crude oil and alkali solution from flowing into the mixing area 15 again.

[0054] Driven by the stirring blade 24, the mixed solution in the mixing zone 15 in the washing tank 1 continuously flows from the liquid inlet 611 into the filtering zone 16, and 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, so that the movable plug 613 releases the blockage of the liquid inlet 611, thereby allowing the mixed solution in the mixing zone 15 to smoothly flow from the liquid inlet 611 into the filtering zone 16.

[0055] When the mixed solution in the filtration zone 16 is about to flow into the mixing zone 15 from the liquid inlet 611, the mixed solution impacts the movable plug 613, causing the movable plug 613 to press against the filter plate 61 on the movable rod 612, thereby causing the movable plug 613 to block the liquid inlet 611, thereby preventing the mixed solution in the filtration zone 16 from flowing into the mixing zone 15 from the liquid inlet 611.

[0056] Furthermore, the mixed solution in the filtering area 16 can only be filtered through the filter screen 62 before flowing into the mixing area 15, so the precipitate produced by the mixture of crude oil and alkali solution can be collected by the filter screen 62. This reduces the influence of the precipitate in the mixed solution on the deacidification effect, and also prevents the precipitate produced by the mixture of crude oil and alkali solution from entering the subsequent refining process and affecting the subsequent crude oil quality.

[0057] Reference Figure 4 and Figure 5 A locking seat 621 is fixedly connected to one side of the filter screen 62 close to the filter plate 61, and a plurality of convex plates 622 are fixedly connected to the edge of the locking seat 621. In the present embodiment, three convex plates 622 are provided, and in other embodiments, two, four, or five convex plates may be provided according to design requirements. A locking groove 623 is provided on the convex plate 622, and a mounting groove 614 is provided on the filter plate 61. Three limiting blocks 615 corresponding to the convex plates 622 are fixedly connected at the opening of the mounting groove 614. A locking protrusion 616 is fixedly connected to the limiting block 615 close to the inside of the mounting groove 614, and the locking protrusion 616 abuts against the locking groove 623 on the convex plate 622.

[0058] When the filter 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 protruding plate 622 abuts against the limiting block 615 and the locking protrusion 616 is inserted into the locking groove 623 to complete the locking of the filter 62.

[0059] When the filter 62 needs to be disassembled, the locking seat 621 is rotated to disengage the locking protrusion 616 from the locking groove 623 , and then the locking seat 621 is rotated to dislocate the convex plate 622 and the limiting block 615 , so that the locking seat 621 can be disengaged from the installation groove 614 .

[0060] In an optional embodiment, the filter screen 62 protrudes toward one side of the filter area 16, and a partition screen 63 is fixedly connected to one end of the filter screen 62 near the filter plate 61. The partition screen 63 is arranged obliquely toward the filter plate 61, and there is a gap between the partition screen 63 and the filter plate 61. In the process of the filter screen 62 moving back and forth with the drainage sleeve 5, the sediment intercepted by the filter screen 62 can be gradually moved toward the filter plate 61, and the setting of the partition screen 63 can intercept the sediment near the filter plate 61, thereby reducing the sediment near the filter plate 61 from blocking the filter screen 62 again, and improving the patency of the filter screen 62 during the filtration process.

[0061] The implementation principle of the perilla oil extraction device of the embodiment of the present application is as follows: crude oil is injected into the water washing tank 1 from the oil inlet pipe 12, and alkali solution is also injected into the infusion tank. Then the driving motor 21 is started, the driving motor 21 drives the rotating shaft 22 to rotate, the rotating shaft 22 drives the sliding rod 23 to rotate, the sliding rod 23 rotates to drive two stirring blades 24 with opposite inclination angles to rotate, when the two stirring blades 24 rotate, the solution in the water washing tank 1 is driven to flow toward between the two stirring blades 24, so that the crude oil and the alkali solution are impact mixed.

[0062] When the driving motor 21 drives the rotating shaft 22, the rotating shaft 22 drives the reciprocating screw 32 to rotate through the transmission of the driving gear 41 and the transmission gear 42. The rotation of the reciprocating screw 32 drives the sliding rod 34 to drive the sliding rod 23 to reciprocate. The reciprocating motion of the sliding rod 23 drives the stirring blade 24 to reciprocate at different depths of the washing tank 1, driving the mixed solution at different depths in the washing tank 1 to flow toward the middle of the stirring blade 24. At the same time, the stirring blade 24 is covered with the drainage sleeve 5, so that the solution inside the drainage sleeve 5 flows toward the middle of the two stirring blades 24. The solution on the outside of the drainage sleeve 5 flows away from the middle of the two stirring blades 24, and the drainage sleeve 5 is used to separate the mixed solution in the water washing tank 1 that flows toward the middle of the two stirring blades 24 and that flows away from the middle of the two stirring blades 24, so that the mixed solution in the water washing tank 1 needs to bypass the drainage sleeve 5 when flowing, and 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 blades 24 can fully mix the crude oil and alkali solution at different depth layers in the water washing tank 1.

[0063] During the mixing process of the crude oil and the alkali solution, the filter screen 62 filters the precipitate produced by the mixing of the crude oil and the alkali solution. During the reciprocating motion of the filter screen 62 along with the sliding rod 34 and the sliding rod 23, the intercepted precipitate reciprocates together, thereby reducing the blocking of the filter screen 62 by the precipitate. At the same time, the precipitate intercepted by the filter screen 62 gradually moves toward the filter plate 61 with the reciprocating motion, and the partition screen 63 intercepts the precipitate close to the filter plate 61, thereby reducing the precipitate close to the filter plate 61 from blocking the filter screen 62 again, thereby improving the patency of the filter screen 62 during the filtration process.

[0064] By means of the cooperation of the mixing component 2, the sliding component 3, the transmission component 4 and the drainage sleeve 5, the stirring blade 24 can make the mixed solution of different depths flow toward the middle of the two stirring blades 24, the sliding component 3 controls the stirring blade 24 to move in the mixed solution of different depths, and the drainage sleeve 5 separates the mixed solution flowing toward the middle of the two stirring blades 24 and the mixed solution flowing away from the middle of the two stirring blades 24 in the washing tank 1, so that the mixed solution in the washing tank 1 needs to bypass the drainage sleeve 5 when flowing, and the drainage sleeve 5 is used to extend the length of the solution circulation in the washing tank 1, so that the flow range of the solution in the washing tank 1 covers more different depth levels, and then the crude oil and alkali solution at different depth levels in the washing tank 1 are fully mixed, so that the deacidification degree of the crude oil at different depth levels is consistent.

[0065] At the same time, the filter element 6 collects the precipitate produced by the mixture of crude oil and alkali solution, which not only reduces the influence of the precipitate in the mixed solution on the deacidification effect, but also prevents the precipitate produced by the mixture of crude oil and alkali solution from entering the subsequent refining process, thereby further improving the quality of subsequent crude oil extraction.

[0066] The present application also discloses a method for extracting perilla oil.

[0067] Reference Figure 6 The extraction method of perilla oil includes the steps of S1, material preparation→S2, crude oil input→S3, alkali solution input→S4, mixed filtration→S5, crude oil exclusion to complete the deacidification of the crude oil.

[0068] S1. Material preparation, specifically; 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; S2, crude oil input, specifically: The crude perilla oil with an initial temperature of 30-35°C is transported to the washing tank 1 through the oil inlet pipe 12; S3, alkali solution input, specifically: Alkali solution with a concentration of 12.59% to 14.24% is transported to the washing tank 1 through the infusion pipe 13; S4, mixed filtration, specifically: The driving motor 21 is started, and the stirring blade 24 is driven by the driving motor 21 to rotate, so that the mixture of the alkali solution and the crude oil is continuously collided and mixed in the washing tank 1; S5, crude oil removal, specifically: The driving motor 21 is stopped, and the solution in the water washing tank 1 is discharged through the oil outlet pipe 14 .

[0069] First, provide perilla crude oil, alkali solution and coagulant, heat the perilla crude oil, control the initial temperature of the perilla crude oil at 30-35°C, and control the concentration of the alkali solution 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 oil inlet pipe 12, and transport the alkali solution with a concentration of 12.59%-14.24% to the water washing tank 1 through the liquid inlet pipe 13, and then transport the coagulant to the water washing tank 1 through the liquid inlet pipe 13.

[0070] The driving motor 21 is started, and the stirring blade 24 is driven by the driving motor 21 to rotate, so that the mixture of the alkali solution and the crude oil continuously collides and mixes in the washing tank 1 , and finally the driving motor 21 is stopped, and the solution in the washing tank 1 is discharged through the oil outlet pipe 14 .

[0071] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A device for extracting perilla oil, characterized in that: include: A water washing tank (1), wherein a cover plate (11) is installed on the upper side of the water washing tank (1), an oil inlet pipe (12) and a liquid delivery 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 liquid delivery pipe (13) and the oil outlet pipe (14) are all connected to the water washing tank (1); A mixing assembly (2), comprising a driving motor (21), a rotating shaft (22), a sliding rod (23) and a plurality of stirring blades (24), wherein the driving motor (21) is fixedly connected to the cover plate (11), the rotating shaft (22) is disposed in the 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 axial direction of the rotating shaft (22), the stirring blades (24) are fixedly connected to the sliding rod (23), and the inclination angles of adjacent stirring blades (24) are opposite; a sliding assembly (3), installed in the washing tank (1), and connected to the sliding rod (23), and used to drive the sliding rod (23) to reciprocate along the length direction of the rotating shaft (22); and The transmission assembly (4) is installed between the rotating shaft (22) and the sliding assembly (3) so that when the rotating shaft (22) rotates, the sliding assembly (3) drives the sliding rod (23) to move back and forth.

2. The perilla oil extraction device according to claim 1, characterized in that: The sliding assembly (3) comprises a mounting seat (31), a reciprocating screw rod (32), a guide rod (33) and a sliding rod (34); the mounting seat (31) is fixedly connected to the inner side wall of the washing tank (1); the reciprocating screw rod (32) is rotatably connected to the mounting seat (31); the axis of the reciprocating screw rod (32) is parallel to the axis of the sliding rod (23); one end of the reciprocating screw rod (32) passes through the washing tank (1) and is connected to the transmission assembly (4); the axis of the guide rod (33) is parallel to the axis of the reciprocating screw rod (32) and is fixedly connected to the mounting seat (31); the sliding rod (34) is threadedly connected to the reciprocating screw rod (32); the sliding rod (34) is sleeved on the guide rod (33); an annular groove (25) is provided on the sliding rod (23); one end of the sliding rod (34) is inserted into the annular groove (25).

3. The extraction device of perilla oil according to claim 2, characterized in that: The transmission member comprises a driving gear (41) and a transmission gear (42); the driving gear (41) is coaxially fixedly connected to the rotating shaft (22); the transmission gear (42) is coaxially fixedly connected to the reciprocating screw rod (32); and the driving gear (41) is meshed with the transmission gear (42).

4. The extraction device for perilla oil according to claim 2, characterized in that: Two stirring blades (24) are provided, and the liquid outlets of the two stirring blades (24) are located on a side close to each other. Two drainage sleeves (5) are fixedly connected to the sliding rod (34), and the two drainage sleeves (5) are sleeved one by one on a side of the stirring blades (24) away from each other.

5. The extraction device for perilla oil according to claim 4, characterized in that: A filter element (6) is fixedly connected to the drainage sleeve (5) away from the stirring blade (24); the filter element (6) abuts against the inner wall of the water washing tank (1) to divide the internal space of the water washing tank (1) into a mixing zone (15) and a filtering zone (16); the solution in the filtering zone (16) enters the mixing zone (15) after being filtered by the filter element (6), and the oil outlet pipe (14) is connected to the mixing zone (15).

6. The extraction device for perilla oil according to claim 5, characterized in that: The filter element (6) comprises a filter plate (61) and a filter screen (62); the filter plate (61) is fixedly connected to the drainage sleeve (5); the filter screen (62) is mounted on the filter plate (61), and the filter screen (62) is located at the opening of the drainage sleeve (5); the filter plate (61) is located on the outer side of the drainage sleeve (5) and is provided with a liquid inlet (611); a movable plug (613) is mounted on the filter plate (61); the movable plug (613) is used to prevent the solution in the filtration zone (16) from flowing into the mixing zone (15) through the liquid inlet (611).

7. The extraction device of perilla oil according to claim 6, characterized in that: The filter screen (62) protrudes toward one side of the filter area (16); one end of the filter screen (62) close to the filter plate (61) is fixedly connected to a partition screen (63); the partition screen (63) is arranged obliquely toward the filter plate (61), and a gap is provided between the partition screen (63) and the filter plate (61).

8. The perilla oil extraction device according to claim 6, characterized in that: A movable rod (612) is fixedly connected to the side of the filter plate (61) facing the filter area (16), the movable plug (613) is slidably connected to the movable rod (612), and the movable plug (613) is arranged in a conical shape on the side facing the liquid inlet (611).

9. The perilla oil extraction device according to claim 1, characterized in that: A locking seat (621) is fixedly connected to one side of the filter screen (62) close to the filter plate (61); a plurality of convex plates (622) are fixedly connected to the edge of the locking seat (621); a locking groove (623) is provided on the convex plate (622); a mounting groove (614) is provided on the filter plate (61); a plurality of limiting blocks (615) are fixedly connected to the opening of the mounting groove (614); a locking protrusion (616) is fixedly connected to the limiting block (615) close to the inside of the mounting groove (614); when the locking seat (621) is installed in the mounting groove (614), the convex plate (622) abuts against the limiting block (615), and the locking protrusion (616) abuts against the locking groove (623).

10. A method for extracting perilla oil, applied to the perilla oil extraction device according to any one of claims 1 to 9, characterized in that: 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; S2, crude oil input, the perilla crude oil with an initial temperature of 30-35° C. is transported to the water washing tank (1) through the oil inlet pipe (12); S3, alkali solution input, the alkali solution with a concentration of 12.59% to 14.24% is transported into the water washing tank (1) through the liquid infusion pipe (13), and the coagulant is transported into the water washing tank (1) through the liquid infusion pipe (13); S4, mixing and filtering, starting the driving motor (21), and using the driving motor (21) to drive the stirring blade (24) to rotate, so that the mixture of the alkali solution and the crude oil continuously collides and mixes in the washing tank (1); S5, crude oil discharge, stop driving the motor (21), and discharge the solution in the water washing tank (1) through the oil outlet pipe (14).

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