Rapeseed oil refining equipment and refining process thereof

Abstract

The application discloses rapeseed oil refining equipment and a refining process thereof, and relates to the technical field of extraction and refining, which comprises a refining tank, supporting legs are fixedly connected to the bottom of the refining tank, a base is fixedly connected to the bottom of the supporting legs, a feeding inlet is threadedly connected to the top of the refining tank, a driving device is fixedly connected to the top of the refining tank, a refining stirring mechanism is arranged on the inner wall of the refining tank, the oil material can maintain a suitable temperature environment in the stirring process through the refining stirring mechanism, the precipitation and condensation of phospholipids are accelerated, the influence of low temperature on the condensation effect of phospholipids is prevented, the deterioration of oil caused by high temperature is avoided, the inside of the refining tank is uniformly heated at different positions through synchronous stirring, compared with the uneven heating of a single position of a traditional heating rod, the circulating flow heat conduction liquid is matched with the rotary stirring mode of the driving rod, so that the temperature control of the whole degumming process is more uniform and stable.

Description

Technical Field

[0001] This invention relates to the field of extraction and refining technology, specifically to a rapeseed oil refining equipment and its refining process. Background Technology

[0002] Refined vegetable oils are a general term for vegetable oils processed through physical or chemical processes. Currently, there is no clear definition or unified industrial standard. The processing steps include degumming, deacidification, decolorization, and deodorization, primarily used to remove impurities and odors and improve oil stability. Patent application CN110616109A describes a rapeseed oil refining device and method, comprising a refining tank and a distillation tank. A main pipeline extends from the bottom of the refining tank and connects to the distillation tank. An oil pump is installed on the main pipeline to draw rapeseed oil from the refining tank into the distillation tank. The distillation tank has an oil collection port for collecting the refined rapeseed oil. A feed inlet is located at the top of the refining tank, and a first sliding rod is located below the feed inlet. In traditional degumming processes, the oilseeds to be degummed are typically placed in a refining tank, a certain proportion of warm water is added, and then the oil is stirred using a stirring device to promote phospholipid coagulation. Afterward, the mixture is allowed to settle and the bottom gum is discharged. However, existing stirring devices are relatively simple, only capable of mechanically stirring the oilseeds and unable to effectively control the temperature during the stirring process. Temperature is one of the key factors affecting the coagulation effect of phospholipids. If the temperature is too low, the coagulation rate is slow, making it difficult to achieve the desired degumming effect, prolonging the production cycle and reducing production efficiency; if the temperature is too high, it will cause the oil to deteriorate, producing harmful substances and seriously affecting the quality and safety of edible oils. Meanwhile, traditional heating methods often use heating rods, which are typically fixed at a specific location within the refining tank. This method has significant limitations, leading to large temperature differences and highly uneven heating across different areas of the tank. Areas near the heating rod may be too hot, while areas further away may be too cold, failing to provide a stable and suitable temperature environment for phospholipid coagulation. This, in turn, affects the stability and consistency of the entire degumming process, resulting in inconsistent degumming effects and compromising the quality stability of the edible oil. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a rapeseed oil refining equipment and refining process, thereby solving the aforementioned problems.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: a rapeseed oil refining device, including a refining tank, a support leg fixedly connected to the bottom of the refining tank, a base fixedly connected to the bottom of the support leg, a feed inlet threadedly connected to the top of the refining tank, a drive device fixedly connected to the top of the refining tank, and a refining stirring mechanism provided on the inner wall of the refining tank. The refining and stirring mechanism includes: A liquid circulation heater is fixedly connected to the bottom of the refining tank. A rotating shaft is fixedly connected to the output end of the drive device. A rotating sleeve is fixedly connected to the bottom end of the rotating shaft. A connecting block is provided on the outer wall of the rotating sleeve. A toggle lever, which is cylindrical in shape, is rotatably connected to a connecting block at one end near the rotating sleeve, and is fixedly connected to the outer wall of the rotating sleeve at the other end of the connecting block away from the toggle lever.

[0005] Preferably, the bottom of the refining tank is fixedly connected to a discharge port for discharging the colloid, and the liquid circulation heater is provided with a heat-conducting liquid.

[0006] Preferably, the interior of the liquid circulation heater is connected to the interior of the fixed block, the interior of the fixed block is connected to the interior of the rotating sleeve, and the interior of the rotating sleeve is connected to the interior of the actuating rod through a connecting block.

[0007] Preferably, a connecting tube is fixedly connected to the outer wall of the actuating rod, the interior of the connecting tube is connected to the interior of the actuating rod, and a rolling column is fixedly connected to the end of the actuating rod away from the rotating sleeve.

[0008] Preferably, the outer wall of the actuating lever is provided with four heat-conducting grooves, which are distributed equidistantly in a ring on the outside of the actuating lever.

[0009] Preferably, a fixing ring is fixedly connected to the inner wall of the refining tank. The fixing ring has a circular structure, and the top of the fixing ring contacts the bottom of the rolling column.

[0010] Preferably, the number of support legs is four, and the four support legs are distributed equidistantly in a ring between the refining tank and the base. The rolling column has a cylindrical structure, and the connecting actuating tube is made of soft and elastic material.

[0011] Preferably, the actuating rods are distributed equidistantly in a ring around the outside of the rotating sleeve, and the refining and stirring mechanism consists of two sets arranged vertically, with each set containing three actuating rods.

[0012] Preferably, the number of connecting blocks in a set of refining and stirring mechanisms is three, and the three connecting blocks are respectively connected to the three actuating rods. The actuating rods and connecting blocks in each set of refining and stirring mechanisms are distributed in concentric circles to ensure that the oil is heated and flows evenly during the refining process.

[0013] A preferred rapeseed oil refining process includes the following steps: S1. Add rapeseed oil raw material into the liquid circulation heater, and add 5% of the oil volume of warm water into the refining tank. The oil is heated at a constant temperature through the circulation of the heat-conducting liquid inside the liquid circulation heater to keep the oil temperature at 60-80℃ and remove some moisture and impurities. S2. Start the fixed block to deliver the heated oil into the rotating sleeve. The oil is evenly distributed and flows continuously through the connection between the connecting block and the actuating rod. S3. After the degumming process is completed inside the lever, the oil is introduced into the next refining stage through the rolling column, while the heat conduction tank helps to remove the gum impurities.

[0014] This invention provides a rapeseed oil refining equipment and refining process, which has the following beneficial effects: 1. This invention, by setting up a refining stirring mechanism, maintains a suitable temperature environment for the oil during the stirring process, accelerates the precipitation and coagulation of phospholipids, prevents the temperature from being too low and affecting the coagulation effect of phospholipids, and avoids the temperature from being too high and causing the oil to deteriorate. It achieves uniform heating of different positions inside the refining tank during stirring. Compared with the uneven heating caused by the single-position placement of traditional heating rods, this circulating heat transfer fluid combined with the rotating stirring method of the lever makes the temperature control of the entire degumming process more uniform and stable. 2. By setting up a refining stirring mechanism, while the agitator stirs the oil, the protruding connecting agitator tubes work together to separate the oil. At the same time, the heat dissipation area of ​​several connecting agitator tubes extends into more parts of the oil inside the refining tank, achieving a more uniform heat conduction effect on the oil and further improving the degumming efficiency and quality. Meanwhile, the heat transfer fluid is circulated and then flows back to the fixed block, where it is heated again by the heating device of the fixed block to maintain a constant temperature of the heat transfer fluid in the entire system. 3. By setting up a refining and stirring mechanism, when the lever rotates, the multi-layered fixing rings on the inner wall of the refining tank block splashing oil droplets at the outermost ring of the oil stirring, thereby preventing the formation of vortices on the surface of the liquid oil during stirring. Some oil droplets are thrown to the inner wall of the support leg or the air contact surface, which increases the contact area between the oil and oxygen, accelerates oxidation and rancidity. At the same time, the splashed oil droplets carry the colloids back into the liquid, causing secondary pollution. 4. By setting up a refining and stirring mechanism, the agitator can rotate to ensure more uniform heat conduction in the oil. In addition, the heat conduction grooves on its surface evenly transfer heat to the oil. At the same time, it drives the protruding connecting agitator tube to rotate and swing, so that the heat can be quickly spread to the entire processing area. Furthermore, the design of the heat conduction grooves not only enhances the heat exchange efficiency between the agitator and the oil, but also increases the micro-circulation flow inside the oil during stirring through its surface texture. This makes it easier for phospholipids and other colloidal components to aggregate and precipitate, ensuring a uniform temperature field distribution during stirring, avoiding the formation of local overheating or cold zones, and optimizing the degumming effect. 5. By setting up a lifting and circulating mechanism, when the lever rotates, it synchronously drives the lever plate to rotate. The rotating shaft drives the rotating sleeve to rotate in the clockwise direction as shown in the top view. Therefore, the rolling column rolls in the clockwise direction on the fixed ring. At this time, the lever plate pushes the oil upward and downward through the concave arc surface formed on its surface, thereby forming a three-dimensional stirring effect. This makes the oil continuously tumble and disperse during the processing, avoiding uneven temperature and the accumulation of gum. The groove plays a role in separating and dispersing the oil. 6. By setting up a lifting and circulating mechanism, the oil in the outer ring is circulated to the central area. This circulation not only enhances the overall uniformity of the oil, but also continuously lifts and pushes the oil in the outer ring from bottom to top through the reciprocating lifting and circulating motion of the lifting ring, forming a circulation path for the oil in the central area to flow downwards. This avoids the problems of temperature differences and uneven distribution of gum components in different areas of the oil, while improving the heat transfer efficiency and material uniformity during the degumming process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic cross-sectional view of the refining tank of the present invention. Figure 1 ; Figure 3 This is a schematic cross-sectional view of the refining tank of the present invention. Figure 2 ; Figure 4 This is a schematic diagram of the refining stirring mechanism of the present invention. Figure 1 ; Figure 5 This is a schematic diagram of the refining stirring mechanism of the present invention. Figure 2 ; Figure 6 This is a schematic diagram of the lifting and circulating mechanism of the present invention. Figure 1 ; Figure 7 This is a schematic diagram of the lifting and circulating mechanism of the present invention. Figure 2 ; Figure 8 For the present invention Figure 4Enlarged view of point A.

[0016] In the diagram: 1. Support leg; 2. Refining tank; 3. Refining stirring mechanism; 301. Liquid circulation heater; 302. Fixing block; 303. Surface bearing; 304. Rotating sleeve; 305. Rotating shaft; 307. Connecting block; 308. Actuating rod; 309. Rolling column; 310. Fixing ring; 311. Connecting actuating tube; 312. Heat conduction groove; 4. Lifting and circulating mechanism; 401. Actuating plate; 402. Groove; 403. Flow limiting groove; 404. Push plate; 405. Lifting ring; 406. Inclined surface; 5. Base; 6. Drive device; 7. Inlet; 9. Outlet. Detailed Implementation

[0017] Example 1: Please refer to Figure 1-3 The present invention provides a technical solution: a rapeseed oil refining equipment, including a refining tank 2, a support leg 1 fixedly connected to the bottom of the refining tank 2, a base 5 fixedly connected to the bottom of the support leg 1, a feed inlet 7 threadedly connected to the top of the refining tank 2, a drive device 6 fixedly connected to the top of the refining tank 2, and a refining stirring mechanism 3 provided on the inner wall of the refining tank 2. The refining stirring mechanism 3 includes: Liquid circulation heater 301 is fixedly connected to the bottom of refining tank 2. A rotating shaft 305 is fixedly connected to the output end of drive device 6. A rotating sleeve 304 is fixedly connected to the bottom end of rotating shaft 305. A connecting block 307 is provided on the outer wall of rotating sleeve 304. The lever 308 is a cylindrical structure. The end of the lever 308 near the rotating sleeve 304 is rotatably connected to the connecting block 307, and the end of the connecting block 307 away from the lever 308 is fixedly connected to the outer wall of the rotating sleeve 304.

[0018] The bottom of the refining tank 2 is fixedly connected to the discharge port 9, which is used to discharge the colloid. The liquid circulation heater 301 is equipped with a heat-conducting liquid. When in use, the oil that needs to be degummed is put into the refining tank 2 through the feed port 7, and 5% warm water of oil ratio is added into the refining tank 2. The drive device 6 is started to drive the rotating shaft 305 and the rotating sleeve 304 below to rotate. The oil is stirred by the connecting block 307 and the agitator 308. The rapid stirring causes the phospholipids to coagulate. After settling, the bottom gum is discharged through the discharge port 9 and enters the next process. When the oil is added into the refining tank 2, the fixed block 302 is simultaneously activated to continuously heat and circulate the heat-conducting liquid inside and in the rotating sleeve 304. Thus, the heat-conducting liquid inside the fixed block 302 continuously enters the connecting block 307 and the agitator 308 through the rotating sleeve 304, maintaining the continuous temperature of the agitator 308. Through the heat conduction of the outer wall of the agitator 308 and the stirring action of the agitator 308 itself, the oil maintains a suitable temperature environment during the stirring process, accelerating the precipitation and coagulation of phospholipids, preventing the temperature from being too low and affecting the coagulation effect of phospholipids, and avoiding the temperature from being too high and causing the oil to deteriorate. At the same time, the oil is uniformly heated in different positions inside the refining tank 2 while stirring. Compared with the uneven heating caused by the single-position placement of traditional heating rods, the circulating heat-conducting liquid combined with the rotational stirring method of the agitator 308 makes the temperature control of the entire degumming process more uniform and stable. Example 2: Please refer to Figure 1-5 Based on Embodiment 1, this invention provides a technical solution: In terms of stirring, the existing stirring structure of equipment is usually relatively simple, mostly consisting of a single rotating stirring rod or blade. During this stirring process, the oil easily forms vortices on the surface of the tank, causing some oil droplets to splash onto the outer wall of the tank or come into large-area contact with air, accelerating the oxidation and rancidity of the oil. Moreover, the splashed oil droplets may carry incompletely removed gum back into the oil, causing secondary pollution and further affecting the degumming effect and oil quality. In addition, traditional stirring structures cannot achieve effective micro-circulation flow inside the oil, making it difficult for phospholipids and other gum components to fully aggregate and precipitate, reducing degumming efficiency. Therefore, the liquid circulation heater 301 is connected to the fixed block 302, the fixed block 302 is connected to the rotating sleeve 304, and the rotating sleeve 304 is connected to the actuating rod 308 via the connecting block 307.

[0019] A connecting tube 311 is fixedly connected to the outer wall of the actuating lever 308. The interior of the connecting tube 311 is connected to the interior of the actuating lever 308. A rolling column 309 is fixedly connected to the end of the actuating lever 308 away from the rotating sleeve 304.

[0020] The outer wall of the lever 308 has four heat-conducting grooves 312, which are distributed in a ring at equal intervals on the outside of the lever 308.

[0021] A fixing ring 310 is fixedly connected to the inner wall of the refining tank 2. The fixing ring 310 has a circular structure, and the top of the fixing ring 310 contacts the bottom of the rolling column 309.

[0022] There are four support legs 1, which are distributed in a ring at equal intervals between the refining tank 2 and the base 5. The rolling column 309 is a cylindrical structure, and the connecting actuation tube 311 is made of soft and elastic material.

[0023] The actuating rods 308 are distributed in a ring at equal intervals on the outside of the rotating sleeve 304. The refining and stirring mechanism 3 consists of two sets arranged vertically, with three actuating rods 308 in each set of the refining and stirring mechanism 3.

[0024] There are three connecting blocks 307 in a set of refining and stirring mechanisms 3. The three connecting blocks 307 are respectively connected to three actuating rods 308. The actuating rods 308 and connecting blocks 307 in each set of refining and stirring mechanisms 3 are arranged in concentric circles to ensure that the oil is heated and flows evenly during the refining process.

[0025] A rapeseed oil refining process includes the following steps: S1. Add rapeseed oil raw material into the liquid circulation heater 301, and add 5% of the oil volume of warm water into the refining tank 2. The oil is heated at a constant temperature through the circulation of the heat-conducting liquid inside the liquid circulation heater 301 to keep the oil temperature at 60-80℃ and remove some moisture and impurities. S2. Start the fixed block 302 to transport the heated oil into the rotating sleeve 304. The oil is evenly distributed and flows continuously through the connection between the connecting block 307 and the actuating rod 308. S3. After the degumming process is completed inside the lever 308, the oil is introduced into the next refining stage through the rolling column 309, while the heat conduction groove 312 assists in the discharge of gum impurities. The rotating shaft 305 drives the rotating sleeve 304 to rotate. The rotating sleeve 304 is rotatably connected to the fixed block 302 via the plane bearing 303. Simultaneously, the connecting hole inside the fixed block 302 connects with the connecting hole inside the rotating sleeve 304, ensuring continuous circulation of the heat transfer fluid while they rotate. The heat transfer fluid inside the rotating sleeve 304 enters the actuating rod 308 through the connecting block 307. During circulation in the actuating rod 308, a portion is diverted through the connecting actuating pipe 311. This diversion effect of the connecting actuating pipe 311 allows the heat transfer fluid to circulate more freely. The oil is evenly introduced into different connecting agitator pipes 311, so that while the agitator rod 308 stirs the oil, the protruding connecting agitator pipes 311 work together to separate the oil. At the same time, the heat dissipation area of ​​several connecting agitator pipes 311 extends into more parts of the oil inside the refining tank 2, achieving a more uniform heat conduction effect on the oil and further improving the degumming efficiency and quality. Meanwhile, the heat transfer fluid is circulated and then returned to the fixed block 302, where it is heated again by the heating device of the fixed block 302 to maintain a constant temperature of the heat transfer fluid in the entire system. Furthermore, when the lever 308 rotates, the multi-layer fixing rings 310 on the inner wall of the refining tank 2 block the splashing oil droplets at the outermost ring of the oil stirring, thereby preventing the oil liquid from forming a vortex on the surface during stirring. Some oil droplets are thrown to the inner wall of the support leg 1 or the air contact surface, which increases the contact area between the oil and oxygen, accelerates oxidation and rancidity. At the same time, the splashing oil droplets carry the colloids back into the liquid, causing secondary pollution. When the connecting block 307 drives the actuating rod 308 and the rolling column 309 to rotate and stir, the rolling column 309 is driven to roll by the friction between its outer wall and the fixed ring 310. Simultaneously, the rolling column 309 rotates, driving the actuating rod 308 to rotate. The actuating rod 308 rotates on the rotating sleeve 304 via the connecting block 307, allowing it to rotate and ensure more uniform heat conduction to the oil. Furthermore, the heat-conducting grooves 312 on its surface evenly transfer heat to the oil. Simultaneously, it drives the protruding connecting actuating tube 311 to rotate and swing. The heated liquid circulating inside the connecting actuating tube 311 continuously stirs the oil through the rotation of the actuating rod 308, thus heating the oil. The amount of heat rapidly spreads to the entire processing area. In addition, the design of the heat-conducting groove 312 not only enhances the heat exchange efficiency between the actuating rod 308 and the oil, but also increases the micro-circulation flow inside the oil during stirring through its surface texture, making it easier for phospholipids and other colloidal components to aggregate and precipitate. This structure, combined with the multi-point distributed heating method of the connecting actuating tube 311, ensures the uniform distribution of the temperature field during stirring, avoids the formation of local overheating or cold zones, and optimizes the degumming effect. At the same time, the entire system achieves a high degree of coordination between the heat-conducting liquid circulation and the stirring action through the power linkage between the rotating shaft 305 and the rotating sleeve 304, so that the degumming process maintains a stable and efficient operating state during continuous operation. Example 3: Please refer to Figure 1-8 Based on Embodiment 1 and Embodiment 2, the present invention provides a technical solution: Most existing degumming equipment uses traditional stirring structures, such as a single rotating stirring rod or paddle. This stirring method can only stir the oil in the horizontal direction and cannot effectively tumble and disperse the oil in the vertical direction. During the stirring process, the oil is prone to stratification, and the temperature and composition of the upper and lower layers of oil are different, resulting in localized excessively high or low temperatures, which affects the coagulation and precipitation of phospholipids and other colloidal components. Therefore, a lifting and circulating mechanism 4 is provided on the outer wall of the actuating rod 308. The lifting and circulating mechanism 4 includes an actuating plate 401, one side of which is fixedly connected to the outer wall of the actuating rod 308, and a groove 402 is provided on the inner wall of the actuating plate 401. A flow-limiting groove 403 is provided at the bottom of the fixed ring 310 to suppress liquid flow. A push plate 404 is in contact with the top of the fixed ring 310, and the push plate 404 is inclined. There are six push plates 404, which are equidistantly distributed in a ring on the top of the fixed ring 310. A lifting ring 405 is fixedly connected to the top of the push plate 404, and the bottom of the lifting ring 405 forms an inclined surface 406. When the lever 308 rotates, it synchronously drives the lever plate 401 to rotate. The rotating shaft 305 drives the rotating sleeve 304 to rotate in the clockwise direction as shown in the top view. Therefore, the rolling column 309 rolls clockwise on the fixed ring 310. At this time, the lever plate 401 pushes the oil upward and downward through the concave arc surface formed on its surface, thereby forming a three-dimensional stirring effect. This makes the oil continuously tumble and disperse during the processing, avoiding uneven temperature and the accumulation of gum. The groove 402 plays a role in separating and dispersing the oil. As the rolling column 309 rolls on the fixed ring 310, it continuously touches each push plate 404. The push plate 404 has an inclined plate structure. When the inclined surface of the push plate 404 is pushed by the clockwise rotating rolling column 309, the lifting ring 405 is vertically limited and slid by the inner wall of the refining tank 2. Therefore, the push plate 404 generates an upward lifting force, which causes the push plate 404 and the lifting ring 405 to slide vertically upward on the inner wall of the refining tank 2. The inclined surface 406 formed at the top of the lifting ring 405 pushes the liquid at the outer ring upward as a whole. When the rolling column 309 disengages from the push plate 404, the lifting ring 405 and the push plate 404... As the oil falls due to gravity, the inclined surface at the bottom of the lifting ring 405 prevents it from pushing the oil downwards during descent. Instead, it applies a pushing force towards the center area, thus achieving a circulating flow of oil from the outer ring to the center. This circulation not only enhances the overall uniformity of the oil but also, through the reciprocating lifting and lowering of the lifting ring 405, continuously lifts and pushes the oil from the bottom up, forming a circulating path for the oil in the center to flow downwards. This avoids temperature differences and uneven distribution of gum components in different areas of the oil, while also improving the heat transfer efficiency and material uniformity during the degumming process.

[0026] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A rapeseed oil refining device, comprising a refining tank (2), wherein a support leg (1) is fixedly connected to the bottom of the refining tank (2), a base (5) is fixedly connected to the bottom of the support leg (1), a feed inlet (7) is threadedly connected to the top of the refining tank (2), and a driving device (6) is fixedly connected to the top of the refining tank (2), characterized in that: The inner wall of the refining tank (2) is provided with a refining stirring mechanism (3); The refining stirring mechanism (3) includes: A liquid circulation heater (301) is fixedly connected to the bottom of the refining tank (2). A rotating shaft (305) is fixedly connected to the output end of the drive device (6). A rotating sleeve (304) is fixedly connected to the bottom end of the rotating shaft (305). A connecting block (307) is provided on the outer wall of the rotating sleeve (304). A lever (308) is cylindrical in shape. The end of the lever (308) near the rotating sleeve (304) is rotatably connected to the connecting block (307). The end of the connecting block (307) away from the lever (308) is fixedly connected to the outer wall of the rotating sleeve (304). A rolling column (309) is fixedly connected to the end of the lever (308) away from the rotating sleeve (304). A fixing ring (310) is fixedly connected to the inner wall of the refining tank (2). The fixing ring (310) is circular in shape. The top of the fixing ring (310) contacts the bottom of the rolling column (309). The outer wall of the lever (308) is provided with a lifting and circulating mechanism (4). The lifting and circulating mechanism (4) includes a lever plate (401). One side of the lever plate (401) is fixedly connected to the outer wall of the lever (308). The inner wall of the lever plate (401) is provided with a groove (402). The bottom of the fixed ring (310) is provided with a flow-limiting groove (403). The top of the fixed ring (310) is in contact with a push plate (404). The push plate (404) is inclined. There are 6 push plates (404) and they are distributed in a ring at equal intervals. The top of the push plate (404) is fixedly connected with a lifting ring (405). The bottom of the lifting ring (405) forms an inclined surface (406).

2. A rapeseed oil refining apparatus according to claim 1, characterised in that: The bottom of the refining tank (2) is fixedly connected to a discharge port (9), which is used to discharge the colloid. The liquid circulation heater (301) is equipped with a heat-conducting liquid.

3. A rapeseed oil refining apparatus according to claim 2, characterised in that: The liquid circulation heater (301) is connected to the inside of the fixed block (302), the inside of the fixed block (302) is connected to the inside of the rotating sleeve (304), and the inside of the rotating sleeve (304) is connected to the inside of the toggle rod (308) through the connecting block (307).

4. A rapeseed oil refining apparatus according to claim 3, characterised in that: The outer wall of the lever (308) is fixedly connected to a connecting lever tube (311), and the interior of the connecting lever tube (311) is connected to the interior of the lever (308).

5. A rapeseed oil refining apparatus according to claim 4, characterised in that: The outer wall of the actuating lever (308) is provided with four heat-conducting grooves (312), which are distributed in a ring at equal intervals on the outside of the actuating lever (308).

6. A rapeseed oil refining apparatus according to claim 5, characterised in that: The number of the support legs (1) is four, and the four support legs (1) are distributed in a ring at equal intervals between the refining tank (2) and the base (5). The rolling column (309) is a cylindrical structure, and the connecting actuation tube (311) is made of soft elastic material.

7. A vegetable oil refining plant according to claim 6, characterised in that: The actuating rods (308) are distributed equidistantly in a ring on the outside of the rotating sleeve (304). The refining and stirring mechanism (3) consists of two sets arranged vertically. Each set of the refining and stirring mechanism (3) has three actuating rods (308).

8. A rapeseed oil refining apparatus according to claim 7, characterised in that: The refining stirring mechanism (3) has three connecting blocks (307), and the three connecting blocks (307) are respectively connected to the three actuating rods (308). The actuating rods (308) and connecting blocks (307) in each refining stirring mechanism (3) are arranged in concentric circles to ensure that the oil is heated and flows evenly during the refining process.

9. A rapeseed oil refining process applied to a rapeseed oil refining apparatus according to any one of claims 5 to 8, characterized in that: Includes the following steps: S1. Add rapeseed oil raw material into the liquid circulation heater (301) and add 5% of the oil volume of warm water into the refining tank (2). The oil is heated at a constant temperature through the heat-conducting liquid circulation inside the liquid circulation heater (301) to keep the oil temperature at 60-80℃ and remove some moisture and impurities. S2. Start the fixed block (302) to transport the heated oil to the inside of the rotating sleeve (304). The oil is evenly distributed and flows continuously through the connection between the connecting block (307) and the actuating rod (308). S3. After the degumming process is completed inside the actuating rod (308), the oil is introduced into the next refining stage through the rolling column (309). At the same time, the heat conduction groove (312) assists in the discharge of gum impurities.

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