Fish oil winterization filtering device

Abstract

The invention relates to the field of fish oil filtering, in particular to a fish oil winterization filtering device which comprises a tank body, a feeding pipe is installed at the top of the tank body, the bottom of the tank body is in an arc shape, a stirring driving cylinder is fixedly installed in the middle of the tank body in a penetrating mode, and a discharging pipe is installed on the side face of the stirring driving cylinder in a penetrating mode. A stirring driving rod is rotatably mounted in the middle of the stirring driving barrel, the top end of the stirring driving rod extends into the tank body and is provided with a scraper stirring mechanism, a filtering outer barrel is fixedly mounted in the middle of the top surface of the tank body, and a net barrel through hole penetrates through the part between the filtering outer barrel and the interior of the tank body; a filter screen cylinder is mounted in the filter outer cylinder in an up-down moving manner, and a fish oil extraction assembly is mounted in the filter screen cylinder. The scraping plate stirring mechanism slowly rotates in the tank body to stir fish oil, the fish oil is prevented from being attached to the inner wall of the tank body, the filter screen cylinder can intermittently move downwards for filtering for multiple times, liquid oil is extracted, and the liquid oil in the fish oil is fully extracted.

Description

Technical Field

[0001] This invention relates to the field of fish oil filtration technology, specifically to a fish oil winterization filtration device. Background Technology

[0002] Winterization is a process that separates high-melting-point components from oils using cooling fractionation technology. It is mainly used to remove solid lipids such as stearic acid and wax from fish oil. Its core steps include: 1. Slow cooling: The fish oil is kept at 4-6℃ for about 24 hours to promote the crystallization of high-melting-point glycerides; 2. Filtration separation: The crystallized solid fats are removed by physical filtration to obtain a liquid oil that remains clear at low temperatures.

[0003] However, in existing winterization devices, crystalline solids condense on the inner wall of the chamber during the formation process, and some of the crystalline solids remain on the inner wall, making cleaning difficult. During filtration, the fish oil is filtered through the filter components. For example, patent CN215050013U discloses a fish oil winterization filtration device, which visually pulls the filter screen to filter and intercept the crystals that precipitate during the winterization process of the fish oil above the filter screen, and the fish oil is discharged from the oil outlet below. However, when the filter screen moves upward to filter, the crystalline solids above the filter screen gradually increase, causing the mesh of the filter screen to gradually become blocked. Therefore, the fish oil in the upper layer cannot be filtered, making it difficult to achieve a more thorough filtration.

[0004] In summary, the present invention provides a fish oil winterization filtration device to solve the above-mentioned problems. Summary of the Invention

[0005] In view of the above situation and to overcome the defects of the prior art, the present invention provides a fish oil winterization filtration device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A fish oil winterization filtration device includes a tank. A feed pipe is installed at the top of the tank. The bottom of the tank is arc-shaped, and a stirring drive cylinder is fixedly installed through and in the middle. A discharge pipe is installed through and in the side of the stirring drive cylinder. A stirring drive rod is rotatably installed in the middle of the stirring drive cylinder. The top end of the stirring drive rod extends into the tank and is equipped with a scraper stirring mechanism. A filter outer cylinder is fixedly installed in the middle of the top surface of the tank. A mesh cylinder through hole is formed between the filter outer cylinder and the inside of the tank. A filter mesh cylinder is installed inside the filter outer cylinder, which moves up and down. A fish oil extraction component is installed inside the filter mesh cylinder.

[0008] Preferably, the scraper stirring mechanism includes a scraper turntable, a bottom arc scraper, a tank wall scraper, an outer stirring arc plate, a vertical rod, and an inner stirring arc plate;

[0009] A scraper turntable is coaxially fixedly installed at the top of the stirring drive rod. Multiple tank bottom arc-shaped scrapers are fixedly installed on the outer circumference of the scraper turntable. The tank bottom arc-shaped scrapers are in contact with the inner wall of the tank bottom. A vertical tank wall scraper is fixedly installed at the end of each tank bottom arc-shaped scraper away from the scraper turntable. The tank wall scraper is in contact with the inner wall of the tank. An outer stirring arc plate is fixedly installed on the side of each tank wall scraper facing the center of the tank. A vertical rod is fixedly installed on the top of the end of each tank bottom arc-shaped scraper near the scraper turntable. An inner stirring arc plate is fixedly installed on the side of each vertical rod facing the inner wall of the tank.

[0010] Preferably, the bottom surface of the outer stirring arc plate is higher than the top surface of the inner stirring arc plate. One end of the outer stirring arc plate is fixedly installed on the side of the tank wall scraper, and the other end extends clockwise away from the tank wall scraper. One end of the inner stirring arc plate is fixedly installed on the side of the vertical rod, and the other end extends counterclockwise away from the vertical rod.

[0011] Preferably, an auxiliary auger for discharging material is installed on the outside of the stirring drive rod and located inside the stirring drive cylinder. The auxiliary auger for discharging material abuts against the inner wall of the stirring drive cylinder. A stirring motor connected to the stirring drive rod is fixedly installed at the bottom of the stirring drive cylinder.

[0012] Preferably, the bottom of the filter cylinder is arc-shaped, and drilling spiral blades are evenly distributed on its outer surface.

[0013] Preferably, the top of the filter cylinder is closed, and a drilling drive gear ring is coaxially fixedly installed on its top edge. A drilling threaded hole and a guide hole are passed through the top of the filter outer cylinder and its interior. A drilling drive screw is threadedly installed in the drilling threaded hole, and a guide rod is axially slidably installed in the guide hole. A drive ring is coaxially rotatably installed on the top surface of the filter cylinder. The bottom of the drilling drive screw is rotatably installed on the top surface of the drive ring. The bottom end of the guide rod is fixedly installed on the top surface of the drive ring. A drilling drive gear that meshes with the drilling drive gear ring is coaxially fixedly installed on the outer side of the bottom end of the drilling drive screw.

[0014] Preferably, a drilling drive ring coaxially corresponding to the drilling thread hole is rotatably mounted on the top of the filter outer cylinder. A drilling drive groove is formed along its axial direction on the outer side of the drilling drive screw. A drilling drive block located inside the drilling drive groove is fixedly mounted on the inner side of the drilling drive ring. A drilling bevel gear is coaxially fixedly mounted on the outer side of the drilling drive ring. A motor bracket is fixedly mounted on the outer side of the filter outer cylinder. A drilling drive motor is mounted on the motor bracket. A drive bevel gear meshing with the drilling bevel gear is coaxially fixedly mounted on the rotating shaft of the drilling drive motor.

[0015] Preferably, the fish oil extraction assembly includes an oil suction tube, an oil suction hole, a hose through hole, an oil suction hose, and a hose return spring;

[0016] An oil suction pipe is fixedly installed inside the top center of the filter cylinder. The bottom end of the oil suction pipe is located at the lowest point inside the filter cylinder. The bottom end of the oil suction pipe is closed, and an oil suction hole is passed through the inner and outer circumferential surfaces of the bottom end. A flexible hose through hole is passed through the top center of the outer filter cylinder. The top end of the oil suction pipe is open and coaxially rotatably connected to an oil suction hose. The other end of the oil suction hose passes through the flexible hose through hole and is connected to an oil suction pump. A flexible hose return spring is sleeved on the outside of the oil suction hose. One end of the flexible hose return spring is fixedly connected to the outer side of the oil suction hose, and the other end abuts against the top surface of the outer filter cylinder.

[0017] Preferably, a piston disc is coaxially rotatably mounted on the top surface inside the outer filter cylinder, and two piston support rods penetrating into the filter cylinder are fixedly mounted on the bottom surface of the piston disc. A backflush piston ring flush with the top of the tank is fixedly mounted at the bottom end of the two piston support rods. The outer side of the backflush piston ring is sealed and fitted with the inner wall of the filter cylinder, and its inner side is sealed and fitted with the outer wall of the oil suction pipe.

[0018] Preferably, both the tank body and the outer filter cylinder are equipped with vent valves, and an annular scraper that fits against the outer surface of the filter cylinder is coaxially installed below the through hole of the mesh cylinder.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. Fish oil to be winterized and filtered can be added into the tank through the feed pipe. The outer shell of the tank is equipped with a cooling mechanism, which can lower the temperature inside the tank to the required temperature, so that the fish oil can begin to winterize and crystallize. The stirring drive rod drives the scraper stirring mechanism to slowly rotate inside the tank, thereby slowly stirring the fish oil, so that the fish oil can fully winterize and crystallize. Moreover, the stirring process will not break large crystals into small pieces. In addition, the rotation can also prevent fish oil or crystalline solid fats from adhering to the inner wall of the tank.

[0021] 2. The filter cylinder moves downwards to enter the fish oil, allowing the liquid oil in the fish oil to be filtered into the interior of the filter cylinder. At the same time, as the filter cylinder is pressed downwards into the fish oil, it forces the liquid oil to enter quickly. Then, the liquid oil is extracted and stored by the fish oil extraction component. During the winterization and crystallization process of the fish oil, the filter cylinder can intermittently move downwards multiple times to filter and extract the liquid oil, thereby ensuring that the liquid oil in the fish oil is fully extracted.

[0022] 3. When multiple outer stirring arc plates move clockwise around the circumference, they can stir the fish oil located in the upper layer inside the tank, and at the same time, they can push the fish oil near the inner wall of the tank towards the center of the tank; when multiple inner stirring arc plates move clockwise around the circumference, they can stir the fish oil located in the lower layer inside the tank, and at the same time, they can push the fish oil near the center of the tank towards the center of the inner wall of the tank, so that the fish oil is fully tumbled and stirred, improving the winterization efficiency. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0024] Figure 2 This is the left view of the present invention.

[0025] Figure 3 This is a front view of the present invention.

[0026] Figure 4 For the present invention Figure 2 A three-dimensional cross-sectional view of point AA in the middle.

[0027] Figure 5 For the present invention Figure 3 Cross-sectional view at point BB.

[0028] Figure 6 For the present invention Figure 4 Enlarged view of point C in the middle.

[0029] Figure 7 For the present invention Figure 4 Enlarged view of point D in the middle.

[0030] Figure 8 For the present invention Figure 7 Enlarged view of point E in the middle.

[0031] Figure 9 This is a cross-sectional view of the filter cylinder of the present invention moving downwards.

[0032] Figure 10 This is a cross-sectional view of the filter screen cylinder of the present invention moving to the bottom of the tank.

[0033] Figure 11 For the present invention Figure 10 Enlarged view of point F in the middle.

[0034] In the diagram: 1. Tank body; 2. Feed pipe; 3. Stirring drive cylinder; 4. Discharge pipe; 5. Stirring drive rod; 6. Scraper stirring mechanism; 7. Filter outer cylinder; 8. Mesh cylinder through hole; 9. Filter mesh cylinder; 10. Fish oil extraction component; 11. Scraper turntable; 12. Tank bottom arc scraper; 13. Tank wall scraper; 14. Outer stirring arc plate; 15. Vertical rod; 16. Inner stirring arc plate; 17. Discharge auxiliary auger; 18. Stirring motor; 19. Drilling spiral blade; 20. Drilling drive gear ring; 21. Drilling threaded hole; 22. Guide hole; 23. Drilling drive screw; 24. Guide rod; 25. Drive ring; 26. Drilling drive gear; 27. Drilling drive ring; 28. Drilling drive slot; 29. ​​Drilling drive block; 30. Drilling bevel gear; 31. Motor bracket; 32. Drilling drive motor; 33. Drive bevel gear; 34. Suction pipe; 35. Suction hole; 36. Hose through hole; 37. Suction hose; 38. Hose return spring; 39. Piston disc; 40. Piston support rod; 41. Backflush piston ring; 42. Vent valve; 43. Annular scraper. Detailed Implementation

[0035] The following will refer to the appendix. Figures 1-11 The description provides a detailed description of various embodiments of the present invention.

[0036] A fish oil winterization filtration device, as shown in the attached Figure 1-11 As shown, the tank includes a tank body 1. A feed pipe 2 is installed on the top of the tank body 1. The bottom of the tank body 1 is arc-shaped, and a stirring drive cylinder 3 is fixedly installed through the middle. A discharge pipe 4 is installed through the side of the stirring drive cylinder 3. A stirring drive rod 5 is rotatably installed in the middle of the stirring drive cylinder 3. The top of the stirring drive rod 5 extends into the tank body 1 and is equipped with a scraper stirring mechanism 6. Fish oil to be winterized and filtered can be added into the tank body 1 through the feed pipe 2. The outer shell of the tank body 1 is equipped with a cooling mechanism, which can lower the temperature inside the tank body 1 to the required temperature, so that the fish oil begins to winterize and crystallize. The stirring drive rod 5 drives the scraper stirring mechanism 6 to rotate slowly inside the tank body 1, thereby slowly stirring the fish oil, so that the fish oil can fully winterize and crystallize. Moreover, during the stirring process, large crystals will not be broken into small pieces. In addition, the rotation can also prevent fish oil or crystalline solid fats from adhering to the inner wall of the tank body 1.

[0037] A filter outer cylinder 7 is fixedly installed in the middle of the top surface of the tank 1. A mesh tube through hole 8 is provided between the filter outer cylinder 7 and the interior of the tank 1. A filter mesh tube 9 is installed inside the filter outer cylinder 7, moving up and down. A fish oil extraction component 10 is installed inside the filter mesh tube 9. The filter mesh tube 9 can enter the fish oil by moving downwards, and the liquid oil in the fish oil can be filtered into the interior of the filter mesh tube 9. At the same time, as the filter mesh tube 9 is pressed downwards into the fish oil, the liquid oil can be forced to enter quickly. Then, the liquid oil is extracted and stored by the fish oil extraction component 10. During the winterization and crystallization process of fish oil, the filter mesh tube 9 can move downwards intermittently multiple times to filter and extract the liquid oil, so that the liquid oil in the fish oil is fully extracted.

[0038] As attached Figure 4 , Figure 5 , Figure 9 , Figure 10 As shown, the scraper stirring mechanism 6 includes a scraper turntable 11, a bottom arc scraper 12, a tank wall scraper 13, an outer stirring arc plate 14, a vertical rod 15, and an inner stirring arc plate 16.

[0039] A scraper turntable 11 is coaxially fixedly installed at the top end of the stirring drive rod 5. Multiple tank bottom arc-shaped scrapers 12 are fixedly installed on the outer circumference of the scraper turntable 11. The tank bottom arc-shaped scrapers 12 are in contact with the inner wall of the bottom of the tank body 1. A vertical tank wall scraper 13 is fixedly installed at the end of each tank bottom arc-shaped scraper 12 away from the scraper turntable 11. The tank wall scraper 13 is in contact with the inner wall of the tank body 1. An outer stirring arc plate 14 is fixedly installed on the side of each tank wall scraper 13 facing the center of the tank body 1. A vertical rod 15 is fixedly installed at the top of the end of each tank bottom arc-shaped scraper 12 near the scraper turntable 11. An inner stirring arc plate 16 is fixedly installed on the side of each vertical rod 15 facing the inner wall of the tank body 1.

[0040] As attached Figure 5 As shown, the stirring drive rod 5 rotates slowly clockwise, thereby driving the scraper turntable 11 to rotate clockwise. Multiple bottom arc scrapers 12, tank wall scrapers 13, and vertical rods 15 move in a clockwise circular motion. During the circular motion of multiple bottom arc scrapers 12 and tank wall scrapers 13, fish oil or crystalline solid fats adhering to the bottom and side walls of the tank 1 can be scraped off, avoiding incomplete winterization of the fish oil. When multiple tank wall scrapers 13 and vertical rods 15 move in a clockwise circular motion, they can drive multiple outer stirring arc plates 14 and inner stirring arc plates 16 to rotate in a clockwise circular motion, thereby slowly stirring the fish oil.

[0041] As attached Figure 9 As shown, the bottom surface of the outer stirring arc plate 14 is higher than the top surface of the inner stirring arc plate 16, as illustrated in the attached diagram. Figure 5As shown, one end of the outer stirring arc plate 14 is fixedly installed on the side of the tank wall scraper 13, and the other end extends clockwise away from the tank wall scraper 13. One end of the inner stirring arc plate 16 is fixedly installed on the side of the vertical rod 15, and the other end extends counterclockwise away from the vertical rod 15.

[0042] When the multiple external stirring arc plates 14 move clockwise in a circumferential direction, they can stir the fish oil located in the upper layer inside the tank 1, and at the same time, they can push the fish oil near the inner wall of the tank 1 towards the center of the tank 1.

[0043] When the multiple internal stirring arc plates 16 move clockwise in a circumferential direction, they can stir the fish oil located in the lower layer inside the tank 1, and at the same time, they can push the fish oil near the center of the tank 1 towards the center of the inner wall of the tank 1, so that the fish oil can be fully tumbled and stirred, thereby improving the winterization efficiency.

[0044] As attached Figure 9 As shown, an auxiliary auger 17 for discharging is installed on the outside of the stirring drive rod 5 and located inside the stirring drive cylinder 3. The auxiliary auger 17 for discharging abuts against the inner wall of the stirring drive cylinder 3. A stirring motor 18 connected to the stirring drive rod 5 is fixedly installed at the bottom of the stirring drive cylinder 3. The stirring motor 18 is connected to a power source and can drive the stirring drive rod 5 to rotate when started. After filtration is completed, the discharge pipe 4 is opened and the filtered fish oil can be discharged through the discharge pipe 4. When the auxiliary auger 17 for discharging rotates, it can promote the discharge of fish oil, and its contact with the inner wall of the stirring drive cylinder 3 can prevent fish oil from remaining on the inner wall of the stirring drive cylinder 3.

[0045] As attached Figure 9 As shown, the bottom of the filter cylinder 9 is arc-shaped, and drilling spiral blades 19 are evenly distributed on its outer surface. When the filter cylinder 9 moves downward, it rotates under the drive of the subsequent structure, thereby driving the multiple drilling spiral blades 19 to rotate circumferentially, so that the filter cylinder 9 drills into the fish oil. Especially when a part of the liquid oil is extracted, most of the remaining part in the tank 1 is a mixture of fish oil and a large amount of crystalline solid fat. The filter cylinder 9 drills into the fish oil through the drilling spiral blades 19, thereby reducing the resistance when entering the fish oil.

[0046] As attached Figure 7 , Figure 8 , Figure 11As shown, the top of the filter cylinder 9 is closed, and a drilling drive gear ring 20 is coaxially fixedly installed on its top edge. The drilling drive gear ring 20 can rotate synchronously with the filter cylinder 9. A drilling threaded hole 21 and a guide hole 22 are passed through the top of the filter outer cylinder 7 and its interior. A drilling drive screw 23 is installed in the internal thread of the drilling threaded hole 21. A guide rod 24 is axially slidably installed in the guide hole 22. A drive ring 25 is coaxially rotatably installed on the top surface of the filter cylinder 9. The bottom of the drilling drive screw 23 is rotatably installed on the top surface of the drive ring 25. The bottom end of the guide rod 24 is fixedly installed on the top surface of the drive ring 25. Since the two are fixedly connected, and the guide rod 24 can only move axially, the drive ring 25 itself cannot rotate. The filter cylinder 9 can rotate below the drive ring 25. A drilling drive gear 26 that meshes with the drilling drive gear ring 20 is coaxially fixedly installed on the outer side of the bottom end of the drilling drive screw 23.

[0047] When the drilling drive screw 23 rotates, it engages with the drilling threaded hole 21 via threaded transmission, allowing the drilling drive screw 23 to move downwards. Simultaneously, the rotation of the drilling drive screw 23 drives the drilling drive gear 26 to rotate synchronously. When the drilling drive gear 26 rotates, it engages with the drilling drive gear ring 20, causing the drilling drive gear ring 20 to rotate. This, in turn, drives the filter screen cylinder 9 to rotate below the drive ring 25, thus achieving the effect of the filter screen cylinder 9 rotating while simultaneously drilling downwards into the fish oil.

[0048] As attached Figures 7-8 As shown, a drilling drive ring 27 coaxially corresponding to the drilling threaded hole 21 is rotatably mounted on the top of the filter outer cylinder 7. The inner side of the drilling drive ring 27 does not contact the drilling threaded hole 21. A drilling drive long groove 28 is formed along its axial direction on the outer side of the drilling drive screw 23. A drilling drive block 29 located inside the drilling drive long groove 28 is fixedly mounted on the inner side of the drilling drive ring 27. When the drilling drive ring 27 rotates, the drilling drive screw 23 can be driven to rotate through the cooperation of the drilling drive block 29 and the drilling drive long groove 28. When the drilling drive screw 23 moves up and down, the drilling drive block 29 and the drilling drive long groove 28 slide relative to each other.

[0049] A drilling bevel gear 30 is coaxially fixed on the outer side of the drilling drive ring 27. The drilling bevel gear 30 can rotate synchronously with the drilling drive ring 27. A motor bracket 31 is fixedly installed on the outer side of the filter outer cylinder 7. A drilling drive motor 32 is installed on the motor bracket 31. A drive bevel gear 33 that meshes with the drilling bevel gear 30 is coaxially fixed on the rotating shaft of the drilling drive motor 32. When the drilling drive motor 32 starts, it can drive the drilling bevel gear 30 to rotate through the drive bevel gear 33, thereby achieving the effect of the filter cylinder 9 drilling into the fish oil.

[0050] As attached Figures 6-8 , Figures 10-11 As shown, the fish oil extraction assembly 10 includes an oil suction tube 34, an oil suction hole 35, a hose through hole 36, an oil suction hose 37, and a hose return spring 38.

[0051] An oil suction pipe 34 is fixedly installed inside the top center of the filter cylinder 9. The bottom end of the oil suction pipe 34 is located at the lowest point inside the filter cylinder 9. The bottom end of the oil suction pipe 34 is closed, and an oil suction hole 35 is passed through the inner and outer circumferential surfaces of its bottom end. A hose through hole 36 is passed through the top center of the filter outer cylinder 7. The top end of the oil suction pipe 34 is open and coaxially rotatably connected to an oil suction hose 37. The other end of the oil suction hose 37 passes through the hose through hole 36 and is connected to an oil suction pump. A hose return spring 38 is sleeved on the outside of the oil suction hose 37. One end of the hose return spring 38 is fixedly connected to the outer side of the oil suction hose 37, and the other end abuts against the top surface of the filter outer cylinder 7.

[0052] When the filter cylinder 9 moves downward into the fish oil, it drives the oil suction hose 37 to move downward within the hose through-hole 36, simultaneously compressing the hose return spring 38. After the liquid oil enters the interior of the filter cylinder 9, the oil suction pump can be turned on, and the liquid oil can be drawn out from the oil suction hole 35 into the external storage container. When the filter cylinder 9 moves upward to reset, the oil suction hose 37 moves upward to reset within the hose through-hole 36 under the elastic force of the hose return spring 38.

[0053] As attached Figures 6-8 , Figure 11 As shown, a piston disc 39 is coaxially rotatably mounted on the top surface inside the filter outer cylinder 7. Two piston support rods 40 that penetrate into the filter screen cylinder 9 are fixedly mounted on the bottom surface of the piston disc 39. Since the piston disc 39 is rotatably mounted, when the filter screen cylinder 9 rotates, it can drive the two piston support rods 40 to move circumferentially. When the filter screen cylinder 9 moves up and down, the two piston support rods 40 can move relative to the through hole. A backflush piston ring 41 that is flush with the top of the tank body 1 is fixedly mounted at the bottom end of the two piston support rods 40. The outer side of the backflush piston ring 41 is sealed and fitted with the inner wall of the filter screen cylinder 9, and its inner side is sealed and fitted with the outer wall of the oil suction pipe 34.

[0054] When the filter cylinder 9 enters the fish oil for filtration, the crystalline solid fat in the fish oil will gradually accumulate on the outside of the filter cylinder 9. The rotating vertical rods 15 can push away the crystalline solid fat on the outside of the filter cylinder 9 to prevent the filter cylinder 9 from clogging. When the filter cylinder 9 moves upward to reset, the space between the bottom surface of the backflush piston ring 41 and the inside of the filter cylinder 9 gradually decreases. Therefore, the air inside the filter cylinder 9 will be compressed and pass through the filter holes of the filter cylinder 9 from the inside to the outside, squeezing out the crystalline solid fat that is blocking the filter holes, thereby achieving reverse unblocking of the filter cylinder 9.

[0055] As attached Figure 1 , Figure 3 , Figure 6 As shown, both the tank body 1 and the outer filter cylinder 7 are equipped with vent valves 42. The vent valves can balance the air pressure inside the tank body 1 and the outer filter cylinder 7. An annular scraper 43 is coaxially installed below the through hole 8 of the mesh cylinder and fits against the outer side of the filter mesh cylinder 9. When the filter mesh cylinder 9 is reset upward, the annular scraper 43 can scrape off the fish oil or crystalline solid grease adhering to its outer side.

[0056] It should be noted that in the description of this invention, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0057] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0058] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A fish oil winterization filtration device, comprising a tank (1), characterized in that, The top of the tank (1) is equipped with a feed pipe (2). The bottom of the tank (1) is arc-shaped and a stirring drive cylinder (3) is fixedly installed through the middle. A discharge pipe (4) is installed through the side of the stirring drive cylinder (3). A stirring drive rod (5) is rotatably installed in the middle of the stirring drive cylinder (3). The top of the stirring drive rod (5) extends into the tank (1) and is equipped with a scraper stirring mechanism (6). A filter outer cylinder (7) is fixedly installed in the middle of the top surface of the tank (1). A mesh tube through hole (8) is passed between the filter outer cylinder (7) and the inside of the tank (1). A filter mesh cylinder (9) is installed inside the filter outer cylinder (7) and moves up and down. A fish oil extraction component (10) is installed inside the filter mesh cylinder (9).

2. The fish oil winterization filtration device according to claim 1, characterized in that, The scraper stirring mechanism (6) includes a scraper turntable (11), a bottom arc scraper (12), a tank wall scraper (13), an outer stirring arc plate (14), a vertical rod (15), and an inner stirring arc plate (16). A scraper turntable (11) is coaxially fixedly installed at the top of the stirring drive rod (5). Multiple tank bottom arc scrapers (12) are fixedly installed on the outer circumference of the scraper turntable (11). The tank bottom arc scrapers (12) are in contact with the inner wall of the bottom of the tank body (1). A vertical tank wall scraper (13) is fixedly installed at the end of each tank bottom arc scraper (12) away from the scraper turntable (11). The tank wall scraper (13) is in contact with the inner wall of the tank body (1). An outer stirring arc plate (14) is fixedly installed on the side of each tank wall scraper (13) facing the center of the tank body (1). A vertical rod (15) is fixedly installed at the top of the end of each tank bottom arc scraper (12) near the scraper turntable (11). An inner stirring arc plate (16) is fixedly installed on the side of each vertical rod (15) facing the inner wall of the tank body (1).

3. The fish oil winterization filtration device according to claim 2, characterized in that, The bottom surface of the outer stirring arc plate (14) is higher than the top surface of the inner stirring arc plate (16). One end of the outer stirring arc plate (14) is fixedly installed on the side of the tank wall scraper (13), and the other end extends clockwise away from the tank wall scraper (13). One end of the inner stirring arc plate (16) is fixedly installed on the side of the vertical rod (15), and the other end extends counterclockwise away from the vertical rod (15).

4. The fish oil winterization filtration device according to claim 2, characterized in that, An auxiliary auger (17) for discharging material is installed on the outside of the stirring drive rod (5) and located inside the stirring drive cylinder (3). The auxiliary auger (17) for discharging material abuts against the inner wall of the stirring drive cylinder (3). A stirring motor (18) connected to the stirring drive rod (5) is fixedly installed at the bottom of the stirring drive cylinder (3).

5. The fish oil winterization filtration device according to claim 1, characterized in that, The bottom of the filter cylinder (9) is arc-shaped, and drilling spiral blades (19) are evenly distributed on its outer surface.

6. The fish oil winterization filtration device according to claim 5, characterized in that, The top of the filter cylinder (9) is closed, and a drilling drive gear ring (20) is coaxially fixedly installed on its top edge. A drilling threaded hole (21) and a guide hole (22) are passed through the top of the filter outer cylinder (7) and its interior. A drilling drive screw (23) is threadedly installed in the drilling threaded hole (21). A guide rod (24) is axially slidably installed in the guide hole (22). A drive ring (25) is coaxially rotatably installed on the top surface of the filter cylinder (9). The bottom of the drilling drive screw (23) is rotatably installed on the top surface of the drive ring (25). The bottom end of the guide rod (24) is fixedly installed on the top surface of the drive ring (25). A drilling drive gear (26) that meshes with the drilling drive gear ring (20) is coaxially fixedly installed on the outer side of the bottom end of the drilling drive screw (23).

7. A fish oil winterization filtration device according to claim 6, characterized in that, The top of the filter outer cylinder (7) is rotatably mounted with a drilling drive ring (27) coaxially corresponding to the drilling thread hole (21). The outer side of the drilling drive screw (23) is provided with a drilling drive long groove (28) along its axial direction. The inner side of the drilling drive ring (27) is fixedly mounted with a drilling drive block (29) located inside the drilling drive long groove (28). The outer side of the drilling drive ring (27) is coaxially fixedly mounted with a drilling bevel gear (30). The outer side of the filter outer cylinder (7) is fixedly mounted with a motor bracket (31). The motor bracket (31) is mounted with a drilling drive motor (32). The rotating shaft of the drilling drive motor (32) is coaxially fixedly mounted with a drive bevel gear (33) meshing with the drilling bevel gear (30).

8. A fish oil winterization filtration device according to claim 6, characterized in that, The fish oil extraction assembly (10) includes an oil suction tube (34), an oil suction hole (35), a hose through hole (36), an oil suction hose (37), and a hose return spring (38). An oil suction pipe (34) is fixedly installed inside the top center of the filter cylinder (9). The bottom end of the oil suction pipe (34) is located at the lowest point inside the filter cylinder (9). The bottom end of the oil suction pipe (34) is closed, and an oil suction hole (35) is passed through the inner and outer circumferential surfaces of its bottom end. A hose through hole (36) is passed through the top center of the filter outer cylinder (7). The top end of the oil suction pipe (34) is open and is coaxially rotatably connected to an oil suction hose (37). The other end of the oil suction hose (37) passes through the hose through hole (36) and is connected to the oil suction pump. A hose return spring (38) is sleeved on the outside of the oil suction hose (37). One end of the hose return spring (38) is fixedly connected to the outer side of the oil suction hose (37), and the other end abuts against the top surface of the filter outer cylinder (7).

9. A fish oil winterization filtration device according to claim 8, characterized in that, A piston disc (39) is coaxially mounted on the top surface inside the filter outer cylinder (7). Two piston support rods (40) that penetrate into the filter screen cylinder (9) are fixedly mounted on the bottom surface of the piston disc (39). A backflush piston ring (41) that is flush with the top of the tank body (1) is fixedly mounted on the bottom end of the two piston support rods (40). The outer side of the backflush piston ring (41) is sealed and fitted with the inner wall of the filter screen cylinder (9), and its inner side is sealed and fitted with the outer wall of the oil suction pipe (34).

10. A fish oil winterization filtration device according to claim 1, characterized in that, Vent valves (42) are installed on both the tank body (1) and the filter outer cylinder (7). An annular scraper (43) that fits against the outer side of the filter cylinder (9) is coaxially installed below the through hole (8) of the mesh cylinder.

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