A high-quality medicinal soybean oil refining process

Abstract

The application provides a high-quality medicinal soybean oil refining process and relates to the technical field of soybean oil production. The high-quality medicinal soybean oil refining process comprises the following steps: step one: crude soybean oil is heated to about 65 DEG C in an oil refining tank, phosphoric acid is added, and after acidification treatment, the alkali tank outlet valve is opened, suitable concentration alkali is added into the oil refining tank for neutralization reaction, finally, the hot water tank outlet valve is opened, and appropriate hot water is added into the oil refining tank for water washing; the driving part drives the stirring blade to adjust the contact area of the stirring blade with the oil during rotation, so that the stirring of the oil is accelerated, the load of the driving source during oil static state is effectively reduced, and the service life of the driving source is prolonged; when the first stirring part rotates, the connecting part can work, the connecting part can drive the scraper to ascend and descend, so that the crystals on the inner wall of the crystallization tank body are scraped off, and the processing efficiency of the soybean oil is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of soybean oil production technology, specifically a refining process for high-quality medicinal soybean oil. Background Technology

[0002] Soybean oil, extracted from soybean seeds, is the world's most produced oil and a highly nutritious edible oil. It contains linoleic acid and unsaturated fatty acids, which help lower blood lipids and cholesterol, offering some protection against cardiovascular and cerebrovascular diseases. The phospholipids it contains are beneficial for the development and growth of the brain, nerves, and blood vessels. Soybean oil also contains palmitic acid, linoleic acid, linolenic acid, vitamin E, vitamin D, vitamin A, carotene, calcium, iron, phosphorus, lecithin, and other nutrients, giving it high nutritional value and health benefits. Furthermore, the vitamin K in soybean oil can alleviate symptoms of Alzheimer's disease, has antioxidant properties that prevent free radical damage, and promotes bone growth and development. Soybean oil has multiple uses, both for food and medicine. Medicinally, it is used as a nutritional supplement, pharmaceutical excipient, energy supplement, in the preparation of fat emulsion injections, and as a solvent for fat-soluble drugs. Soybean oil is easily digested by the human body, with a digestion and absorption rate as high as 98%. Therefore, research on soybean oil, especially medicinal soybean oil, is of great importance.

[0003] When soybean oil is processed in a crystallization tank, it needs to be crystallized at a low temperature (3°C) for 48 hours before adding perlite filter aid to remove impurities. Therefore, a stirring mechanism needs to be installed in the crystallization tank to stir the oil and perlite filter aid to ensure they are fully mixed, which facilitates the cleaning of the soybean oil. However, at the beginning of stirring, the oil is stationary and the stirring blades and shaft need to withstand a large resistance, and the drive source needs to withstand a large load, which greatly affects the service life of the drive source. Moreover, crystals easily adhere to the inner wall of the crystallization tank during use, and the inner wall of the tank needs to be scraped off later, which greatly affects the efficiency of soybean oil processing. Summary of the Invention

[0004] The purpose of this invention is to provide a high-quality pharmaceutical soybean oil refining process, aiming to solve the problems in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: the high-quality pharmaceutical soybean oil refining process includes the following steps: Step 1: Heat the crude soybean oil in the refining tank to about 65°C and add phosphoric acid. After acidification, open the alkali outlet valve of the alkali tank and add an appropriate concentration of alkali solution to the refining tank for neutralization reaction. Finally, open the outlet valve of the hot water tank and add an appropriate amount of hot water to the refining tank for washing. Step 2: The washed soybean oil is drawn into the drying and decolorizing tank by a water-vapor series jet pump under vacuum. Inside the drying and decolorizing tank, it is heated to 110°C and dehydrated and decolorized under vacuum (-92KPa). Step 3: After the waste white clay is filtered out by the plate and frame filter press through the decolorizing oil pump, it is temporarily stored in the decolorizing oil tank. Step 4: The decolorized oil is then finely filtered through a bag filter to remove any remaining bleaching clay. Step 5: The oil is pumped to the physical deacidification and deodorization tank. Under high vacuum (-99.94KPa), the free fatty acids, aldehydes, ketones and other small molecule odor substances in the oil are removed from the oil by the action of saturated steam stripping. Under high temperature (240℃), the heat-sensitive pigments are removed by the principle of thermal decolorization. Step Six: After passing the test, the finished oil is pumped to the cooler and cooled to below 40°C by indirect heat exchange with cooling water. Then it is pumped to the crystallization tank for crystallization. Step 7: After crystallizing at a low temperature (3°C) for 48 hours, add perlite filter aid and stir until the perlite and oil are evenly mixed; Step 8: The oil is then pumped through a filter pump to a plate and frame filter press to remove small amounts of high-melting-point waxes and greases. Step 9: The filtered oil is temporarily stored in the finished oil tank, and the dewaxed and degreased oil is pumped to the filling tank by the finished oil pump for final filling.

[0006] A further technical solution of the present invention includes a crystallizer body; a first stirring part: disposed within the crystallizer body, the first stirring part being rotatable to stir and mix the finished oil and perlite filter aid; the first stirring part includes a rotating cylinder rotatably connected within the crystallizer body, which can rotate when connected to an external power source, and two symmetrical fixed frames fixedly connected to the surface of the rotating cylinder, each fixed frame having a connecting rod slidably connected within it; at least two stirring blades are disposed within the crystallizer body, and the two stirring blades are arranged in a circumferential array around the rotating cylinder; the left and right ends of the two connecting rods are respectively hinged to the two stirring blades, and when the rotating cylinder rotates, the stirring blades can be driven to rotate through the fixed frames and connecting rods; a driving part: disposed within the first stirring part, the driving part being capable of stirring the first... The stirring section is adjusted to regulate the resistance between the stirring blades and the finished oil when stirring it. The second stirring section, located within the crystallization tank, rotates simultaneously with the first stirring section, further agitating the finished oil. Simultaneously, the rotation of the second stirring section drives the drive unit, which adjusts the stirring blades. A scraper, also located within the crystallization tank, has its outer ring in contact with the inner wall of the tank. The scraper can move up and down along the height of the tank to remove crystals adhering to its inner wall. A connecting section, also located within the crystallization tank, drives the scraper's movement. Rotation of the first stirring section activates the connecting section, which in turn drives the scraper's movement.

[0007] A further technical solution of the present invention is that the driving part includes a bidirectional threaded rod rotatably connected to the rotating cylinder, and the axis of the bidirectional threaded rod is perpendicular to the axis of the rotating cylinder. A gear is fixedly connected to the surface of the bidirectional threaded rod, and a rack is provided inside the rotating cylinder, and the rack meshes with the gear. Two connecting plates are threadedly connected to the surface of the bidirectional threaded rod, and the two connecting plates are fixedly connected to two connecting rods respectively.

[0008] A further technical solution of the present invention is that the second stirring part includes two stirring plates arranged in a circumferential array around the rotating cylinder. Two symmetrical grooves are opened inside the rotating cylinder. Slider blocks are slidably connected in both grooves. Connecting shafts are fixedly connected in the two sliders. The two ends of the connecting shafts are fixedly connected to the two stirring plates respectively. A fixing ring is fixedly connected to the surface of the connecting shaft. The fixing ring is located inside the rotating cylinder. A connecting member is fixedly connected to the fixing ring. The other end of the connecting member is fixedly connected to the rack.

[0009] A further technical solution of the present invention is that the stirring plate is inclined. When the stirring plate rotates around the rotating cylinder, it will move downward under the resistance between it and the finished oil. Conversely, when the stirring plate rotates clockwise around the rotating cylinder, it will move upward under the resistance between it and the finished oil.

[0010] A further technical solution of the present invention is that a partition is fixedly connected inside the crystallization tank body, and the partition divides the crystallization tank body into two cavities.

[0011] A further technical solution of the present invention is that the connecting part includes two threaded plates fixedly connected to the inner ring of the scraper, and each of the two threaded plates is threaded with a lead screw, the bottom end of which extends to the bottom of the partition plate. The bottom ends of the two lead screws are fixedly connected with small sprockets, and the small sprockets are rotatably connected to the inner bottom wall of the crystallizing tank body. A large sprocket is fixedly connected to the surface of the rotating cylinder, and the large sprocket is located below the partition plate. The large sprocket and the two small sprockets are connected by chain drive.

[0012] The beneficial effects of this invention are: The first stirring unit is connected to an external drive source. The first stirring unit rotates to agitate the oil. When the first stirring unit rotates, the second stirring unit also rotates simultaneously, agitating the oil. The rotation of the second stirring unit drives the drive unit to work, which in turn drives the stirring blades to adjust, increasing the contact area between the blades and the oil during rotation, thus accelerating the agitation of the oil. This effectively reduces the load on the drive source when the oil is stationary, extending the service life of the drive source. When the first stirring unit rotates, it drives the connecting part to work, which in turn drives the scraper to rise and fall, thereby scraping away the crystals on the inner wall of the crystallization tank, greatly improving the processing efficiency of soybean oil. Attached Figure Description

[0013] Figure 1 This is a partial structural cross-sectional view taken from the front in a specific embodiment of the present invention.

[0014] Figure 2 This is a three-dimensional schematic diagram of the first stirring part, the driving part, and the second stirring part in a specific embodiment of the present invention.

[0015] Figure 3 This is a schematic diagram of the internal structure of the rotating cylinder in a specific embodiment of the present invention.

[0016] Figure 4 This is a specific embodiment of the present invention. Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0017] In the diagram: 1. Crystallizer body; 2. First stirring section; 21. Rotating cylinder; 22. Fixed frame; 23. Connecting rod; 24. Stirring blade; 3. Drive section; 31. Bidirectional threaded rod; 32. Gear; 33. Rack; 34. Connecting plate; 4. Second stirring section; 41. Stirring plate; 42. Connecting shaft; 43. Slide groove; 44. Sliding block; 45. Fixed ring; 46. Connecting piece; 5. Connecting section; 52. Threaded plate; 53. Lead screw; 54. Large sprocket; 55. Small sprocket; 6. Partition plate; 7. Scraper. Detailed Implementation

[0018] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0019] A high-quality pharmaceutical soybean oil refining process includes the following steps: Step 1: Heat the crude soybean oil in the refining tank to about 65°C and add phosphoric acid. After acidification, open the alkali outlet valve of the alkali tank and add an appropriate concentration of alkali solution to the refining tank for neutralization reaction. Finally, open the outlet valve of the hot water tank and add an appropriate amount of hot water to the refining tank for washing. Step 2: The washed soybean oil is drawn into the drying and decolorizing tank by a water-vapor series jet pump under vacuum. Inside the drying and decolorizing tank, it is heated to 110°C and dehydrated and decolorized under vacuum (-92KPa). Step 3: After the waste white clay is filtered out by the plate and frame filter press through the decolorizing oil pump, it is temporarily stored in the decolorizing oil tank. Step 4: The decolorized oil is then finely filtered through a bag filter to remove any remaining bleaching clay. Step 5: The oil is pumped to the physical deacidification and deodorization tank. Under high vacuum (-99.94KPa), the free fatty acids, aldehydes, ketones and other small molecule odor substances in the oil are removed from the oil by the action of saturated steam stripping. Under high temperature (240℃), the heat-sensitive pigments are removed by the principle of thermal decolorization. Step Six: After passing the test, the finished oil is pumped to the cooler and cooled to below 40°C by indirect heat exchange with cooling water. Then it is pumped to the crystallization tank for crystallization. Step 7: After crystallizing at a low temperature (3°C) for 48 hours, add perlite filter aid and stir until the perlite and oil are evenly mixed; Step 8: The oil is then pumped through a filter pump to a plate and frame filter press to remove small amounts of high-melting-point waxes and greases. Step Nine: The filtered oil is temporarily stored in the finished oil tank, while the dewaxed and degreased oil is pumped to the filling tank for final filling. like Figure 1-4As shown, the system includes a crystallization tank body 1. After the tested and qualified finished oil is pumped to a cooler and cooled to below 40°C via indirect heat exchange with cooling water, it is then pumped into the crystallization tank body 1 for crystallization. After crystallization at 3°C ​​for 48 hours, perlite filter aid is added. The crystallization tank body 1 is equipped with a first stirring section 2. When the first stirring section 2 is connected to an external power source, it can rotate. When the perlite filter aid is added to the crystallization tank body 1, the rotation of the first stirring section 2 can stir and mix the finished oil and the perlite filter aid. The first stirring section 2 is equipped with a drive section 3, which can adjust the stirring section 2 so that the stirring blades 24 can adjust the resistance between the stirring blades 24 and the finished oil when stirring, making it easier for the stirring blades 24 to stir the finished oil. The finished oil is stirred. A second stirring part 4 is provided inside the crystallization tank body 1. When the first stirring part 2 rotates, it can simultaneously drive the second stirring part 4 to rotate, stirring the finished oil and further improving the stirring efficiency. When the second stirring part 4 rotates, it can drive the drive part 3 to work, thereby allowing the drive part 3 to adjust the stirring blade 24. A scraper 7 is provided inside the crystallization tank body 1. The outer ring of the scraper 7 contacts the inner wall of the crystallization tank body 1. The scraper 7 can move up and down along the height direction of the crystallization tank body 1 to scrape off the crystals adhering to the inner wall of the crystallization tank body 1. A connecting part 5 is provided inside the crystallization tank body 1 to drive the scraper 7 to move up and down. When the first stirring part 2 rotates, it can drive the connecting part 5 to work, thereby allowing the connecting part 5 to drive the scraper 7 to move up and down.

[0020] like Figure 1-3 As shown, the first stirring unit 2 includes a rotating cylinder 21 rotatably connected inside the crystallization tank body 1. When the rotating cylinder 21 is connected to an external power source, the rotating cylinder 21 can rotate. Two symmetrical fixed frames 22 are fixedly connected to the surface of the rotating cylinder 21. Connecting rods 23 are slidably connected inside the two fixed frames 22. At least two stirring blades 24 are provided inside the crystallization tank body 1, and the two stirring blades 24 are arranged in a circumferential array around the rotating cylinder 21. The left and right ends of the two connecting rods 23 are respectively hinged to the two stirring blades 24. When the rotating cylinder 21 rotates, it can drive the stirring blades 24 to rotate through the fixed frames 22 and connecting rods 23, and stir the finished oil and perlite filter aid to make them fully integrated.

[0021] like Figure 2 and Figure 3As shown, the drive unit 3 includes a bidirectional threaded rod 31 rotatably connected to the rotating cylinder 21, with the axis of the bidirectional threaded rod 31 perpendicular to the axis of the rotating cylinder 21. A gear 32 is fixedly connected to the surface of the bidirectional threaded rod 31. A rack 33 is provided inside the rotating cylinder 21, and the rack 33 meshes with the gear 32. Two connecting plates 34 are threadedly connected to the surface of the bidirectional threaded rod 31, and the two connecting plates 34 are fixedly connected to two connecting rods 23 respectively. When the rack 33 rises and falls, it can drive the gear 32 to rotate. When the gear 32 rotates, it can drive the bidirectional threaded rod 31 to rotate. When the bidirectional threaded rod 31 rotates, it can drive the two connecting plates 34 to move towards or away from each other. When the connecting plates 34 move, they can drive the connecting rods 23 to move. Then, the movement of the connecting rods 23 can adjust the stirring blades 24, so that when the stirring blades 24 rotate, the resistance between the stirring blades 24 and the finished oil can be increased, making it easier for the stirring blades 24 to stir.

[0022] like Figure 1-4 As shown, the second stirring unit 4 includes two stirring plates 41 arranged in a circular array around the rotating cylinder 21. When the rotating cylinder 21 rotates, it can drive the stirring plates 41 to rotate. The stirring plates 41 are inclined. When the stirring plates 41 rotate around the rotating cylinder 21, they will move downward under the resistance between them and the finished oil. Conversely, when the stirring plates 41 rotate clockwise around the rotating cylinder 21, they will move upward under the resistance between them and the finished oil. Two symmetrical sliding grooves 43 are opened in the rotating cylinder 21. Sliding blocks 44 are slidably connected in both sliding grooves 43. Connecting shafts 42 are fixedly connected in both sliding blocks 44. The two ends of the connecting shafts 42 are fixedly connected to the two stirring plates 41 respectively. When the stirring plates 41 move, the stirring plates 41 can be effectively limited, so that the stirring plates 41 can be raised and lowered more conveniently. A fixing ring 45 is fixedly connected to the surface of the connecting shaft 42, and the fixing ring 45 is located inside the rotating cylinder 21. A connecting piece 46 is fixedly connected to the fixing ring 45, and the other end of the connecting piece 46 is fixedly connected to the rack 33. When the connecting shaft 42 is raised or lowered, it can drive the rack 33 to be raised or lowered, so that the stirring blade 24 can be driven to be adjusted while the rotating cylinder 21 is rotating.

[0023] like Figure 1 As shown, a partition 6 is fixedly connected inside the crystallization tank body 1. The partition 6 divides the crystallization tank body 1 into two cavities, which can prevent finished oil from entering below the partition 6 and protect some parts.

[0024] like Figure 1As shown, the connecting part 5 includes two threaded plates 52 fixedly connected to the inner ring of the scraper 7. Each of the two threaded plates 52 is threaded with a lead screw 53, and the bottom end of the lead screw 53 extends to the bottom of the partition 6. The bottom ends of the two lead screws 53 are fixedly connected to small sprockets 55, and the small sprockets 55 are rotatably connected to the inner bottom wall of the crystallization tank body 1. A large sprocket 54 is fixedly connected to the surface of the rotating cylinder 21, and the large sprocket 54 is located below the partition 6. The large sprocket 54 and the two small sprockets 55 are connected by a chain drive. When the rotating cylinder 21 rotates, it can drive the large sprocket 54 to rotate. Then, the rotation of the large sprocket 54 can drive the two small sprockets 55 to rotate through the chain. Then, the rotation of the small sprockets 55 will drive the threaded plates 52 to rotate, so that the threaded plates 52 drive the scraper 7 to rise and fall, clean the inner wall of the crystallization tank body 1, and scrape off the crystals adhering to the inner wall of the crystallization tank body 1.

[0025] Working principle: First, the first stirring part 2 is connected to an external drive source. Driven by the external drive source, the first stirring part 2 will rotate to stir the oil. Then, when the first stirring part 2 rotates, the second stirring part 4 will also rotate at the same time, which can not only stir the oil, but also drive the drive part 3 to work. The drive part 3 will then drive the stirring blade 24 to adjust, increasing the contact area between the stirring blade 24 and the oil when rotating, thereby accelerating the stirring of the oil. This can effectively reduce the load on the drive source when the oil is stationary and improve the service life of the drive source. When the first stirring part 2 rotates, it can drive the connecting part 5 to work. Then, the connecting part 5 can drive the scraper 7 to rise and fall, thereby scraping off the crystals on the inner wall of the crystallization tank body 1, which greatly improves the processing efficiency of soybean oil.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-quality pharmaceutical soybean oil refining process, characterized by: Includes the following steps: Step 1: Heat the crude soybean oil in the refining tank to 65°C, add phosphoric acid, and after acidification, open the alkali outlet valve of the alkali tank and add an appropriate concentration of alkali solution to the refining tank for neutralization reaction. Finally, open the outlet valve of the hot water tank and add an appropriate amount of hot water to the refining tank for washing. Step 2: The washed soybean oil is drawn into the drying and decolorizing tank by a water-vapor series jet pump under vacuum. The oil is then heated to 110℃ and -92KPa in the drying and decolorizing tank for dehydration and decolorization. Step 3: After the waste white clay is filtered out by the plate and frame filter press through the decolorizing oil pump, it is temporarily stored in the decolorizing oil tank. Step 4: The decolorized oil is then finely filtered through a bag filter to remove any remaining bleaching clay. Step 5: The oil is pumped to the physical deacidification and deodorization tank. Under -99.94KPa conditions, the free fatty acids, aldehydes and ketones, and small molecule odor substances in the oil are removed by the action of saturated steam stripping. At 240℃, the heat-sensitive pigments are removed by the principle of thermal decolorization. Step Six: After passing the test, the finished oil is pumped to the cooler and cooled to below 40°C by indirect heat exchange with cooling water. Then it is pumped to the crystallization tank for crystallization. Step 7: After crystallizing at 3°C ​​for 48 hours, add perlite filter aid and stir until the perlite and oil are evenly mixed. Step 8: The oil is then pumped through a filter pump to a plate and frame filter press to remove small amounts of high-melting-point waxes and greases. Step 9: The filtered oil is temporarily stored in the finished oil tank, and the dewaxed and degreased oil is pumped to the filling tank for final filling. The crystallization tank includes a crystallization tank body (1); First stirring part (2): Set inside the crystallization tank body (1), the first stirring part (2) can rotate to stir and mix the finished oil and perlite filter aid; The first stirring part (2) includes a rotating cylinder (21) rotatably connected to the crystallizing tank body (1). When the rotating cylinder (21) is connected to an external power source, the rotating cylinder (21) can rotate. Two symmetrical fixed frames (22) are fixedly connected to the surface of the rotating cylinder (21). A connecting rod (23) is slidably connected in both fixed frames (22). At least two stirring blades (24) are provided in the crystallizing tank body (1). The two stirring blades (24) are arranged in a circular array around the rotating cylinder (21). The left and right ends of the two connecting rods (23) are respectively hinged to the two stirring blades (24). When the rotating cylinder (21) rotates, it can drive the stirring blades (24) to rotate through the fixed frames (22) and the connecting rods (23). Drive unit (3): It is installed in the first stirring unit (2). The drive unit (3) can adjust the first stirring unit (2) so that when the stirring blade (24) stirs the finished oil, it can adjust the resistance between the stirring blade (24) and the finished oil. Second stirring part (4): It is set inside the crystallization tank body (1). When the first stirring part (2) rotates, it can simultaneously drive the second stirring part (4) to rotate and stir the finished oil. When the second stirring part (4) rotates, it can drive the drive part (3) to work, so that the drive part (3) can adjust the stirring blade (24). Scraper (7): Set inside the crystallization tank body (1), the outer ring of the scraper (7) is in contact with the inner wall of the crystallization tank body (1), and the scraper (7) can move up and down along the height direction of the crystallization tank body (1) to scrape off the crystals adhering to the inner wall of the crystallization tank body (1). Connecting part (5): It is set inside the crystallizer body (1) and is used to drive the scraper (7) to move up and down. When the first stirring part (2) rotates, it can drive the connecting part (5) to work, so that the connecting part (5) drives the scraper (7) to move up and down. The drive unit (3) includes a bidirectional threaded rod (31) rotatably connected to the rotating cylinder (21), and the axis of the bidirectional threaded rod (31) is perpendicular to the axis of the rotating cylinder (21). A gear (32) is fixedly connected to the surface of the bidirectional threaded rod (31). A rack (33) is provided inside the rotating cylinder (21), and the rack (33) meshes with the gear (32). Two connecting plates (34) are threadedly connected to the surface of the bidirectional threaded rod (31), and the two connecting plates (34) are fixedly connected to the two connecting rods (23) respectively. The second stirring part (4) includes two stirring plates (41) arranged in a circular array around the rotating cylinder (21). Two symmetrical grooves (43) are opened in the rotating cylinder (21). Sliding blocks (44) are slidably connected in both grooves (43). Connecting shafts (42) are fixedly connected in the two sliding blocks (44). Both ends of the connecting shafts (42) are fixedly connected to the two stirring plates (41) respectively. A fixing ring (45) is fixedly connected to the surface of the connecting shafts (42). The fixing rings (45) are located in the rotating cylinder (21). A connecting piece (46) is fixedly connected to the fixing rings (45). The other end of the connecting piece (46) is fixedly connected to the rack (33).

2. The high-quality pharmaceutical soybean oil refining process according to claim 1, characterized in that, The stirring plate (41) is inclined. When the stirring plate (41) rotates around the rotating cylinder (21), it will move downward under the resistance between it and the finished oil. Conversely, when the stirring plate (41) rotates clockwise around the rotating cylinder (21), it will move upward under the resistance between it and the finished oil.

3. The high-quality pharmaceutical soybean oil refining process according to claim 1, characterized in that, A partition (6) is fixedly connected inside the crystallizer body (1), which divides the crystallizer body (1) into two cavities.

4. The high-quality pharmaceutical soybean oil refining process according to claim 1, characterized in that, The connecting part (5) includes two threaded plates (52) fixedly connected to the inner ring of the scraper (7). Both threaded plates (52) are threaded with screws (53), and the bottom end of the screws (53) extends to the bottom of the partition (6). The bottom end of both screws (53) is fixedly connected with small sprockets (55), and the small sprockets (55) are rotatably connected to the inner bottom wall of the crystallizer body (1). The surface of the rotating cylinder (21) is fixedly connected with a large sprocket (54), and the large sprocket (54) is located below the partition (6). The large sprocket (54) and the two small sprockets (55) are connected by chain drive.

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