A sesame oil separating apparatus

Abstract

The present application relates to the technical field of oil separation, and discloses a sesame oil separation device, which comprises a shell, an inverted conical rotor, a driving mechanism, an annular intercepting baffle and a multistage groove structure. The conical surface of the inverted conical rotor is sequentially divided into a smooth spreading area, a coarse deep groove area, a fine middle groove area and a fine shallow micro groove area along the generatrix direction. The annular intercepting baffle is fixed at the end of the smooth spreading area and is provided with a drainage gap. Annular scrapers and residue collecting grooves are arranged at the ends of the respective areas. The present application realizes efficient separation of oil residue and water through the series connection of the four functional areas, and solves the technical problems of water film covering the grooves and separation failure of wide particle size residue.

Description

Technical Field

[0001] This invention relates to the field of oil separation technology, and more specifically, to a sesame oil separation device. Background Technology

[0002] In the production of edible oils such as sesame oil, crude oil typically contains a large amount of water and impurities with a wide range of particle sizes, including heat-denatured protein clots, medium-sized particles, and submicron-sized protein aggregates. Existing technologies usually employ rotating conical thin-film separators for oil-water separation, utilizing centrifugal force to spread the material into a thin film on a rotating conical surface, thus achieving separation.

[0003] Existing rotary conical separators incorporate grooves on the conical surface to capture slag particles. However, this technology suffers from several drawbacks: First, the aqueous phase in high-water-content crude oil has a higher density than the oil phase. Under centrifugal force, the water film adheres to the conical surface, filling and covering the grooves, rendering them ineffective at capturing slag particles. Second, when using uniformly sized microgrooves to separate slag particles across a wide size range, large-diameter agglomerates clog the microgrooves, while the microgrooves have insufficient interception probability for submicron-sized particles, resulting in polarization failure. These problems lead to unsatisfactory separation results for high-water-content crude oil with a wide particle size range, impacting the final oil quality. Summary of the Invention

[0004] This invention provides a rotating conical thin film separation device, which solves the technical problems in related technologies such as water film coating of the conical surface filling and covering the downstream grooves and the polarization failure of uniform microgrooves with wide particle size.

[0005] This invention discloses a rotating conical thin-film separation device for separating oil residue and water in crude oil with high water content and wide particle size. The device includes: a sealed container (shell 1); an inverted conical rotor 2 vertically disposed inside the shell, with the cone apex facing the top of the shell and the large end facing the bottom; and a drive mechanism connected to the inverted conical rotor to drive it to rotate around its vertical axis. The conical surface of the inverted conical rotor is divided along its generatrix from the cone apex to the large end into four sections: a first smooth distribution area, a second coarse separation deep groove area, a third fine separation medium groove area, and a fourth fine separation shallow and dense micro-groove area. The cone surface of the sliding distribution area is a smooth surface; the cone surface of the second coarse deep groove area is provided with a spiral deep groove 8; the cone surface of the third fine medium groove area is provided with a spiral medium groove 9; the cone surface of the fourth fine shallow and dense micro groove area is provided with a shallow and dense micro groove 10; the cross-sectional dimension of the spiral deep groove is larger than the cross-sectional dimension of the spiral medium groove, and the cross-sectional dimension of the spiral medium groove is larger than the cross-sectional dimension of the shallow and dense micro groove; the annular intercepting baffle 6 is fixed at the end of the first smooth distribution area, and extends continuously along the circumference of the cone surface to form an annular protrusion, and multiple drainage gaps 7 are evenly distributed along the circumference on the side of the annular intercepting baffle near the cone top.

[0006] Furthermore, the bottom surface of the drainage notch is flush with the surface of the cone.

[0007] Furthermore, it also includes an annular water slag collection tank 11, which is fixed to the inner wall of the shell by an annular mounting flange. The annular water slag collection tank is an annular groove extending circumferentially along the inner wall of the shell. The groove opening of the annular water slag collection tank faces the axial direction of the inverted conical rotor. The setting height of the annular water slag collection tank corresponds to the height position of the annular intercepting baffle. A through hole penetrating the shell wall is opened at the bottom of the annular water slag collection tank. The water slag discharge pipe 21 is connected to the through hole and extends to the outside of the shell.

[0008] Furthermore, it also includes a first annular scraper 12 and a first annular slag collection trough 13. The first annular scraper is fixed to the inner wall of the shell by a radially extending bracket. The cutting edge of the first annular scraper extends radially into the bottom of the spiral deep groove at the end of the second coarse dividing deep groove section. The first annular scraper and the rotating conical surface form a circumferential relative sliding. The first annular slag collection trough is fixed to the inner wall of the shell by an annular mounting flange. The opening of the first annular slag collection trough faces the axial direction of the inverted conical rotor. The setting height of the first annular slag collection trough corresponds to the height position of the end of the second coarse dividing deep groove section. The bottom of the first annular slag collection trough is connected to a first slag discharge pipe 22, which extends outward through the shell wall.

[0009] Furthermore, it also includes a second annular scraper 14 and a second annular slag collection trough 15. The second annular scraper is fixed to the inner wall of the shell by a radially extending bracket. The cutting edge of the second annular scraper extends radially into the bottom of the spiral trough at the end of the third subdivision trough area. The second annular scraper and the rotating conical surface form a circumferential relative sliding. The second annular slag collection trough is fixed to the inner wall of the shell by an annular mounting flange. The setting height of the second annular slag collection trough corresponds to the height position of the end of the third subdivision trough area. The bottom of the second annular slag collection trough is connected to a second slag discharge pipe 23, which extends outward through the shell wall.

[0010] Furthermore, it also includes a third annular scraper 16 and a third annular slag collection trough 17. The third annular scraper is fixed to the inner wall of the shell by a radially extending bracket. The cutting edge of the third annular scraper extends radially into the bottom of the shallow and dense micro-groove at the end of the fourth fine-separation shallow and dense micro-groove area. The third annular scraper and the rotating conical surface form a circumferential relative sliding. The third annular slag collection trough is fixed to the inner wall of the shell by an annular mounting flange. The setting height of the third annular slag collection trough corresponds to the height position of the end of the fourth fine-separation shallow and dense micro-groove area. The bottom of the third annular slag collection trough is connected to a third slag discharge pipe 24, which extends outward through the shell wall.

[0011] Furthermore, an oil collecting chamber 18 is provided at the bottom of the housing. The oil collecting chamber is located below the large end of the inverted conical rotor. The oil collecting chamber is connected to the inner wall of the housing. An oil outlet pipe 20 is connected to the bottom of the oil collecting chamber and extends outward through the bottom wall of the housing.

[0012] Furthermore, a feed inlet 19 is provided at the top of the housing, and the outlet end of the feed inlet faces the cone apex of the inverted cone rotor.

[0013] Furthermore, the driving mechanism is a drive motor. The motor output shaft of the drive motor is coaxially and fixedly connected to the inverted conical rotor through the rotor shaft 3. The rotor shaft is vertically arranged. The upper end of the rotor shaft is rotatably supported on the top of the housing through the upper bearing 4, and the lower end of the rotor shaft is rotatably supported on the support structure inside the housing through the lower bearing 5.

[0014] Furthermore, the spiral direction of the deep spiral groove, the medium spiral groove, and the shallow dense micro groove is matched with the rotation direction of the inverted conical rotor, so that the slag particles embedded in the groove are pushed towards the larger end along the spiral direction.

[0015] This invention solves the technical problems of water film covering grooves and polarization failure in the separation of wide-particle-size crude oil in high-water-content, wide-particle-size crude oil by arranging four functional sections in series along the generatrix on the conical surface of an inverted conical rotor. The first section, a smooth distribution area, combined with an annular intercepting baffle and drainage notch, achieves pre-discharge of water and slag, eliminating the problem of water film covering and filling grooves on the conical surface. The second to fourth sections adopt a three-level gradient groove structure with decreasing depth and spacing to achieve graded capture of large-particle-size lumps, medium-particle-size slag particles, and fine particles, avoiding blockage by large lumps and leakage of fine particles. Each section is independently equipped with a scraper and slag collection trough at the end to achieve segmented discharge of slag particles of different sizes, completing the entire purification process of dehydration, removal of large slag, removal of medium slag, and removal of fine slag, and achieving the technical effect of improving the efficiency of oil-slag-water separation and the quality of clarified oil. Attached Figure Description

[0016] Figure 1 This is a front view of the rotating conical thin film separation device of the present invention; Figure 2 This is a longitudinal full sectional view of the rotating conical thin film separation device of the present invention; Figure 3 This is a cross-sectional view of the rotor conical groove of the rotating conical thin film separation device of the present invention; Figure 4 This is a top view of the annular flow-cutting baffle of the rotating conical thin film separation device of the present invention; Figure 5 This is a cross-sectional view of the scraper and the bottom of the tank in the rotating conical thin film separation device of the present invention; Figure 6 This is an isometric view of the rotating conical thin film separation device of the present invention.

[0017] In the diagram: 1. Shell - 1; 2. Inverted conical rotor - 2; 3. Rotor shaft - 3; 4. Upper bearing - 4; 5. Lower bearing - 5; 6. Annular intercepting baffle - 6; 7. Drainage notch - 7; 8. Spiral deep groove - 8; 9. Spiral middle groove - 9; 10. Shallow and dense micro-grooves - 10; 11. Annular water slag collection trough - 11; 12. First annular scraper - 12; 13. First annular slag collection trough - 13; 14. Second annular scraper - 14; 15. Second annular slag collection trough - 15; 16. Third annular scraper - 16; 17. Third annular slag collection trough - 17; 18. Oil collection chamber - 18; 19. Inlet - 19; 20. Oil outlet pipe - 20; 21. Water slag discharge pipe - 21; 22. First slag discharge pipe - 23; 24. Third slag discharge pipe - 25. Detailed Implementation

[0018] According to an embodiment of this invention, a rotating conical thin-film separation device is used for oil-sludge-water separation of crude oil with high water content and wide particle size. It includes at least a housing 1, an inverted conical rotor 2, a drive mechanism, an annular baffle 6, and a multi-stage grooved structure. The housing 1 is a sealed container providing space for the separation operation. The inverted conical rotor 2 is vertically disposed inside the housing 1, with its apex facing the top of the housing 1 and its large end facing the bottom of the housing 1. The drive mechanism is connected to the inverted conical rotor 2 and drives it to rotate around its vertical axis. The conical surface of the inverted conical rotor 2 is divided sequentially along its generatrix from the apex to the large end into a first smooth distribution area, a second coarse separation deep groove area, a third fine separation medium groove area, and a fourth fine separation shallow and dense micro-groove area. The conical surface of the first smooth distribution area is machined to a smooth surface without any grooves. The annular baffle 6 is fixed to the end of the first smooth distribution area and extends continuously along the circumference of the conical surface to form an annular protrusion. The annular baffle 6 has multiple drainage notches 7 evenly distributed circumferentially on one side near the cone apex, with the bottom surface of each drainage notch 7 flush with the cone surface. The second section, the coarse-divided deep groove zone, has spiral deep grooves 8 machined along the generatrix direction on the cone surface. The third section, the fine-divided medium groove zone, has spiral medium grooves 9 machined along the generatrix direction on the cone surface. The fourth section, the fine-divided shallow and dense micro-groove zone, has shallow and dense micro-grooves 10 machined along the generatrix direction on the cone surface. The cross-sectional dimension of the spiral deep groove 8 is larger than that of the spiral medium groove 9, and the cross-sectional dimension of the spiral medium groove 9 is larger than that of the shallow and dense micro-groove 10.

[0019] In some embodiments, the drive mechanism is a drive motor, and the motor output shaft of the drive motor is coaxially and fixedly connected to the inverted conical rotor 2 via a rotor shaft 3. The rotor shaft 3 is vertically arranged, and its upper end is rotatably supported on the top of the housing 1 via an upper bearing 4, while its lower end is rotatably supported on a support structure inside the housing 1 via a lower bearing 5. The inverted conical rotor 2 is fixed to the rotor shaft 3 via a key connection or flange bolt connection.

[0020] In some embodiments, the spiral deep groove 8 has a depth of two to three millimeters, a width of three to five millimeters, and a groove spacing of eight to twelve millimeters. The spiral medium groove 9 has a depth of 0.5 to one millimeter and a width of one to two millimeters. The shallow dense microgrooves 10 have a depth of 0.1 to 0.3 millimeters, a width of 0.2 to 0.5 millimeters, and a groove spacing of one to two millimeters.

[0021] In some embodiments, the height of the annular intercepting baffle 6 is one to two millimeters. The drainage notch 7 is a rectangular notch or an arc-shaped notch, with four, six, or eight notches evenly distributed circumferentially.

[0022] In some embodiments, the annular choke edge 6 is integrally formed with the conical surface of the inverted conical rotor 2, or the annular choke edge 6 is fixed to the conical surface by welding.

[0023] Furthermore, to collect and discharge the water-slag mixture discharged from the first smooth distribution zone, an annular water-slag collection trough 11 is fixedly installed on the inner wall of the shell 1 via an annular mounting flange. The annular water-slag collection trough 11 is an annular groove extending circumferentially along the inner wall of the shell 1. The opening of the annular water-slag collection trough 11 faces the axial direction of the inverted conical rotor 2, and the installation height of the annular water-slag collection trough 11 corresponds to the height position of the annular intercepting baffle 6. A through hole penetrating the wall of the shell 1 is opened at the bottom of the annular water-slag collection trough 11, and the water-slag discharge pipe 21 is connected to the through hole via a flange and extends to the outside of the shell 1.

[0024] Furthermore, to scrape off and collect the large-diameter agglomerates accumulated in the second coarse separation deep groove zone, the rotating conical film separator also includes a first annular scraper 12 and a first annular slag collection trough 13. The first annular scraper 12 is fixed to the inner wall of the housing 1 by a radially extending bracket. One end of the radially extending bracket is fixedly connected to the inner wall of the housing 1 by bolts, and the other end of the radially extending bracket supports the first annular scraper 12. The cutting edge of the first annular scraper 12 extends radially into the bottom of the spiral deep groove 8 at the end of the second coarse separation deep groove zone, maintaining a gap of 0.1 to 0.3 mm between the cutting edge and the bottom of the groove. The first annular scraper 12 forms a circumferential relative sliding with the rotating conical surface. The first annular slag collection trough 13 is fixed to the inner wall of the housing 1 by an annular mounting flange. The opening of the first annular slag collection trough 13 faces the axial direction of the inverted conical rotor 2, and the setting height of the first annular slag collection trough 13 corresponds to the height position of the end of the second coarse separation deep groove zone. The bottom of the first annular slag collection tank 13 is connected to the first slag discharge pipe 22, which extends outward through the wall of the shell 1.

[0025] Furthermore, to scrape off and collect the medium-sized slag particles accumulated in the third-stage subdivision medium tank area, the rotating conical film separator also includes a second annular scraper 14 and a second annular slag collection trough 15. The second annular scraper 14 is fixed to the inner wall of the housing 1 by a radially extending bracket. One end of the radially extending bracket is bolted to the inner wall of the housing 1, and the other end supports the second annular scraper 14. The cutting edge of the second annular scraper 14 extends radially into the bottom of the spiral medium tank 9 at the end of the third-stage subdivision medium tank area, maintaining a gap of 0.1 to 0.3 mm between the cutting edge and the bottom of the tank. The second annular scraper 14 slides circumferentially relative to the rotating conical surface. The second annular slag collection trough 15 is fixed to the inner wall of the housing 1 by an annular mounting flange. The height of the second annular slag collection trough 15 corresponds to the height position at the end of the third-stage subdivision medium tank area. A second slag discharge pipe 23 is connected to the bottom of the second annular slag collection trough 15, extending outwards through the wall of the housing 1.

[0026] Furthermore, to scrape off and collect the fine slag particles accumulated in the fourth-stage shallow and dense micro-groove zone, the rotating conical membrane separation device also includes a third annular scraper 16 and a third annular slag collection trough 17. The third annular scraper 16 is fixed to the inner wall of the housing 1 by a radially extending bracket. One end of the radially extending bracket is bolted to the inner wall of the housing 1, and the other end supports the third annular scraper 16. The cutting edge of the third annular scraper 16 extends radially into the bottom of the shallow and dense micro-groove 10 at the end of the fourth-stage shallow and dense micro-groove zone, maintaining a gap of 0.1 to 0.3 mm between the cutting edge and the bottom of the groove. The third annular scraper 16 slides circumferentially relative to the rotating conical surface. The third annular slag collection trough 17 is fixed to the inner wall of the housing 1 by an annular mounting flange, and its height corresponds to the height position of the end of the fourth-stage shallow and dense micro-groove zone. The bottom of the third annular slag collection tank 17 is connected to the third slag discharge pipe 24, which extends outward through the wall of the shell 1.

[0027] Furthermore, to collect and discharge the clarified oil ejected from the edge of the large end of the cone, an oil collecting chamber 18 is provided at the bottom of the housing 1. The oil collecting chamber 18 is located below the large end of the inverted conical rotor 2, and is connected to the inner wall of the housing 1. The oil ejected from the edge of the large end of the cone by centrifugal force flows downward along the inner wall of the housing 1 and converges in the oil collecting chamber 18. An oil outlet pipe 20 is connected to the bottom of the oil collecting chamber 18, and the oil outlet pipe 20 extends outward through the bottom wall of the housing 1.

[0028] Furthermore, in order to introduce the high water content and wide particle size crude oil to the cone apex, a feed inlet 19 is provided at the top of the housing 1. The outlet end of the feed inlet 19 faces the cone apex of the inverted cone rotor 2, and the high water content and wide particle size crude oil falls directly onto the cone apex surface after falling into the feed inlet 19.

[0029] In some embodiments, the cone angle of the inverted conical rotor 2 is 10 to 25 degrees, and the driving mechanism drives the inverted conical rotor 2 to rotate at a speed of 200 to 600 revolutions per minute.

[0030] In some embodiments, the spiral direction of the deep spiral groove 8, the medium spiral groove 9, and the shallow dense micro groove 10 is matched with the rotation direction of the inverted conical rotor 2, so that the slag particles embedded in the groove are pushed towards the larger end along the spiral direction.

[0031] In some embodiments, an adjusting bolt is provided on the radially extending bracket, which can be used to adjust the gap between the scraper blade and the corresponding groove bottom.

[0032] The rotating conical thin film separation apparatus of this embodiment performs the following separation steps.

[0033] The drive mechanism is activated, driving the inverted conical rotor 2 to rotate around its vertical axis.

[0034] High-moisture, wide-particle-size crude oil slag particles fall into the feed inlet 19 at the top of the shell 1 and onto the cone-top surface of the rotating inverted conical rotor 2.

[0035] Under centrifugal force, crude oil with high water content and wide particle size slag particles spreads into a thin film along the conical surface, entering the first smooth spreading zone. Because the conical surface of the first smooth spreading zone is smooth, the three-phase film of oil, water, and slag undergoes spreading, thinning, and density stratification within this zone. The water phase has a higher density than the oil phase, so it adheres closely to the conical surface under centrifugal force. The oil phase is located on the outer layer of the film, and the slag particles are distributed between the water phase and the conical surface, settling to the bottom of the water layer.

[0036] When the thin film flows to the end of the first smooth spreading area, a thin layer of aqueous phase close to the conical surface accumulates on the inner side of the annular intercepting baffle 6. When the liquid level of the accumulated water layer exceeds the bottom surface of the drainage gap 7, the aqueous phase carries the slag particles that have settled to the bottom of the water layer and discharges them through the drainage gap 7. The discharged water-slag mixture flies out along the outer wall of the annular intercepting baffle 6 under the action of centrifugal force, impacts the inner wall of the shell 1, and enters the annular water-slag collection tank 11, and is discharged from the shell 1 through the water-slag discharge pipe 21.

[0037] In some embodiments, since the bottom surface of the drainage gap 7 is flush with the surface of the cone, the water phase will overflow and be discharged only when the water level is higher than the cone surface. The oil phase is located on the outer layer of the film due to its lower density, and the oil phase crosses the top of the annular intercepting baffle 6 to enter the next section.

[0038] After pre-discharge of water and slag, the oil phase film overturns the annular intercepting baffle 6 and enters the second coarse separation deep groove zone. The remaining large-particle-size thermally denatured protein clumps are thrown into the spiral deep groove 8 under centrifugal force. These large-particle-size thermally denatured protein clumps are pushed along the spiral direction of the spiral deep groove 8 to the end of the second coarse separation deep groove zone. The cutting edge of the first annular scraper 12 extends into the bottom of the spiral deep groove 8, scraping out the large-particle-size thermally denatured protein clumps accumulated within the spiral deep groove 8. The scraped-out large-particle-size thermally denatured protein clumps fly out into the first annular slag collection trough 13 under centrifugal force and are discharged through the first slag discharge pipe 22.

[0039] The oil phase film continues to flow into the third subdivision medium tank zone. Under the action of centrifugal force, medium-sized slag particles are embedded in the spiral medium tank 9 and pushed along the spiral direction to the end of the third subdivision medium tank zone. They are then scraped out by the second annular scraper 14 to the second annular slag collection tank 15 and discharged through the second slag discharge pipe 23.

[0040] The oil phase film flows into the fourth-stage fine separation shallow and dense microchannel zone. Fine slag particles and submicron-sized protein aggregates migrate to the conical surface within the extremely thin film due to centrifugal force. The densely arranged shallow and dense microchannels 10 intercept the aggregated fine particles with extremely small inter-channel ridge widths. The fine particles are pushed along the shallow and dense microchannels 10 to the end of the fourth-stage fine separation shallow and dense microchannel zone, where they are scraped out by the third annular scraper 16 to the third annular slag collection tank 17, and then discharged through the third slag discharge pipe 24.

[0041] The clarified oil is thrown out by centrifugal force from the edge of the large end of the inverted conical rotor 2, hits the inner wall of the housing 1 and flows down along the inner wall of the housing 1, and gathers in the oil collection chamber 18 at the bottom of the housing 1, and is discharged through the oil outlet pipe 20.

[0042] The rotating conical thin-film separation device of this embodiment solves two technical problems in the separation of crude oil with high water content and wide particle size by setting four functional sections in series on the conical surface of the inverted conical rotor 2 along the generatrix direction.

[0043] Regarding the first technical problem, since the conical surface of the first smooth spreading zone is smooth and without any grooves, the three-phase thin film of oil, water, and slag can be fully spread and thinned within this zone, and density stratification occurs. The denser water phase adheres to the conical surface under centrifugal force, while the slag particles sink to the bottom of the water layer. Because the annular intercepting baffle 6 extends continuously along the circumference of the conical surface to form an annular protrusion, and the bottom surface of the drainage gap 7 is flush with the surface of the conical surface, the thin layer of water phase accumulated inside the annular intercepting baffle 6 can be preferentially discharged through the drainage gap 7 along with the slag particles that have sunk to the bottom of the water layer, and then collected and discharged from the shell 1 through an independent annular water-slag collection tank 11. Therefore, the problem of water film adhering to the conical surface and filling / covering the downstream grooves is eliminated at its source.

[0044] Regarding the second technical problem, after pre-discharge of water and slag, the water and slag content of the oil phase film entering the second coarse-segmentation deep channel zone and the fourth fine-segmentation shallow-dense micro-channel zone is significantly reduced. Furthermore, the cross-sectional dimensions of the spiral deep channel 8 are larger than those of the spiral medium channel 9, and the cross-sectional dimensions of the spiral medium channel 9 are larger than those of the shallow-dense micro-channel 10, forming a three-tiered gradient channel system to classify and capture residual wide-sized thermally denatured protein particles. In the second coarse-segmentation deep channel zone, the spiral deep channel 8, with its cross-sectional size matching that of large agglomerates, preferentially captures large-sized insoluble agglomerates, eliminating the blockage of subsequent spiral medium channel 9 and shallow-dense micro-channel 10 by large agglomerates. In the third fine-segmentation medium channel zone, the spiral medium channel 9 captures medium-sized slag particles. In the fourth fine-segmentation shallow-dense micro-channel zone, the shallow-dense micro-channel 10, with its high-density arrangement and extremely small inter-channel ridge width, achieves high-probability interception of submicron-sized protein aggregates. Therefore, the problem of polarized failure of uniformly sized micro-channels in capturing wide-sized particles is solved.

[0045] In addition, since each section is independently equipped with scrapers and slag collection troughs, slag particles of different sizes are discharged independently in their respective sections. As the material flows along the conical surface, it completes the entire process of purification, including dewatering, removal of large slag, removal of medium slag, and removal of micro slag, thus avoiding cross-contamination and mixed discharge of slag particles of different sizes.

[0046] The embodiments of the present invention have been described above. However, the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make more equivalent embodiments under the guidance of the present embodiments, and all of them are within the protection scope of the present embodiments.

Claims

1. A sesame oil separation device for separating oil residue and water from crude oil with high water content and wide particle size, characterized in that, include: The shell (1) is a closed container; An inverted conical rotor (2) is vertically installed inside the housing, with the cone apex facing the top of the housing and the large end facing the bottom of the housing; a drive mechanism is connected to the inverted conical rotor and drives the inverted conical rotor to rotate around its vertical axis; wherein, the conical surface of the inverted conical rotor is divided into a first smooth distribution area, a second coarse deep groove area, a third fine medium groove area and a fourth fine shallow and dense micro groove area along the generatrix direction from the cone apex to the large end; the conical surface of the first smooth distribution area is a smooth surface; the conical surface of the second coarse deep groove area is provided with a spiral deep groove (8); the conical surface of the third fine medium groove area is provided with a spiral medium groove (9); the conical surface of the fourth fine shallow and dense micro groove area is provided with a shallow and dense micro groove (10); the cross-sectional size of the spiral deep groove is larger than the cross-sectional size of the spiral medium groove, and the cross-sectional size of the spiral medium groove is larger than the cross-sectional size of the shallow and dense micro groove; The annular intercepting baffle (6) is fixed at the end of the first smooth distribution area and extends continuously along the circumference of the cone to form an annular protrusion. Multiple drainage gaps (7) are evenly distributed along the circumference on the side of the annular intercepting baffle near the top of the cone.

2. The sesame oil separation device according to claim 1, characterized in that, The bottom surface of the drainage notch is flush with the surface of the cone.

3. The sesame oil separation device according to claim 1, characterized in that, It also includes an annular water slag collection tank (11), which is fixed to the inner wall of the shell by an annular mounting flange. The annular water slag collection tank is an annular groove extending circumferentially along the inner wall of the shell. The groove opening of the annular water slag collection tank faces the axial direction of the inverted conical rotor. The setting height of the annular water slag collection tank corresponds to the height position of the annular intercepting baffle. A through hole penetrating the shell wall is opened at the bottom of the annular water slag collection tank. The water slag discharge pipe (21) is connected to the through hole and extends to the outside of the shell.

4. The sesame oil separation device according to claim 1, characterized in that, It also includes a first annular scraper (12) and a first annular slag collection trough (13). The first annular scraper is fixed to the inner wall of the shell by a radially extending bracket. The cutting edge of the first annular scraper extends radially into the bottom of the spiral deep groove at the end of the second coarse dividing deep groove area. The first annular scraper and the rotating conical surface form a circumferential relative sliding. The first annular slag collection trough is fixed to the inner wall of the shell by an annular mounting flange. The groove of the first annular slag collection trough opens towards the axis of the inverted conical rotor. The setting height of the first annular slag collection trough corresponds to the height position of the end of the second coarse dividing deep groove area. The bottom of the first annular slag collection trough is connected to a first slag discharge pipe (22). The first slag discharge pipe extends outward through the shell wall.

5. The sesame oil separation device according to claim 4, characterized in that, It also includes a second annular scraper (14) and a second annular slag collection trough (15). The second annular scraper is fixed to the inner wall of the shell by a radially extending bracket. The cutting edge of the second annular scraper extends radially into the bottom of the spiral trough at the end of the third subdivision trough area. The second annular scraper and the rotating conical surface form a circumferential relative sliding. The second annular slag collection trough is fixed to the inner wall of the shell by an annular mounting flange. The setting height of the second annular slag collection trough corresponds to the height position of the end of the third subdivision trough area. The bottom of the second annular slag collection trough is connected to a second slag discharge pipe (23). The second slag discharge pipe extends outward through the shell wall.

6. The sesame oil separation device according to claim 5, characterized in that, It also includes a third annular scraper (16) and a third annular slag collection trough (17). The third annular scraper is fixed to the inner wall of the shell by a radially extending bracket. The cutting edge of the third annular scraper extends radially into the bottom of the shallow and dense micro-groove at the end of the fourth section of the finely divided shallow and dense micro-groove area. The third annular scraper and the rotating conical surface form a circumferential relative sliding. The third annular slag collection trough is fixed to the inner wall of the shell by an annular mounting flange. The setting height of the third annular slag collection trough corresponds to the height position of the end of the fourth section of the finely divided shallow and dense micro-groove area. The bottom of the third annular slag collection trough is connected to a third slag discharge pipe (24). The third slag discharge pipe extends outward through the shell wall.

7. The sesame oil separation device according to claim 1, characterized in that, An oil collecting chamber (18) is provided at the bottom of the housing. The oil collecting chamber is located below the large end of the inverted conical rotor. The oil collecting chamber is connected to the inner wall of the housing. An oil outlet pipe (20) is connected to the bottom of the oil collecting chamber. The oil outlet pipe extends outward through the bottom wall of the housing.

8. The sesame oil separation device according to claim 1, characterized in that, The top of the housing has a feed inlet (19), and the outlet end of the feed inlet faces the cone apex of the inverted cone rotor.

9. The sesame oil separation device according to claim 1, characterized in that, The driving mechanism is a drive motor. The motor output shaft of the drive motor is coaxially and fixedly connected to the inverted conical rotor through the rotor shaft (3). The rotor shaft is set vertically. The upper end of the rotor shaft is rotatably supported on the top of the housing through the upper bearing (4), and the lower end of the rotor shaft is rotatably supported on the support structure inside the housing through the lower bearing (5).

10. The sesame oil separation device according to claim 1, characterized in that, The spiral direction of the deep spiral groove, the medium spiral groove, and the shallow dense micro groove is matched with the rotation direction of the inverted conical rotor, so that the slag particles embedded in the groove are pushed towards the larger end along the spiral direction.

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