Separation device for fish oil production

Abstract

The utility model discloses a separation device for fish oil production, belongs to the technical field of fish oil extraction equipment, and solves the problem that the existing fish oil extraction process is tedious. The device specifically comprises a water phase kettle, an oil phase kettle and a filter, an oil-phase kettle is arranged at the top of the water-phase kettle, and inner cavities of the oil-phase kettle and the water-phase kettle are communicated; the oil phase kettle is connected with the filter through a material conveying pipe; and a stirring mechanism is arranged in the oil phase kettle. According to the utility model, a fish oil mixture is injected into the water phase kettle, and the upper oil phase enters the oil phase kettle along with the rising of the liquid level of the fish oil mixture; by adopting the design that the water phase kettle is communicated with the oil phase kettle, an oil phase automatically enters the oil phase kettle during liquid separation, manual liquid separation is not needed, the oil phase or the water phase does not need to be separated into other kettles, and the operation is efficient and simple; a stirring mechanism is arranged in the oil phase kettle, and stirring can be directly started during adsorption or stirring, so that the fish oil is fully mixed; the fish oil extraction process is simplified, and the fish oil extraction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fish oil extraction equipment, in particular to a separation device used for fish oil production. Background Art

[0002] Fish oil is a kind of oil extracted from the fat tissue of fish, rich in long-chain polyunsaturated fatty acids and docosahexaenoic acid (DHA). These Omega-3 fatty acids cannot be fully synthesized in the human body, so they mainly rely on dietary supplements. Although fish oil has many benefits, the extraction of fish oil is a cumbersome process. When preparing fish oil, the raw materials for producing fish oil are first pretreated; the fresh fish body is processed into fish meal suitable for extracting fish oil through steps such as washing, deboning, and crushing; then most of the water is removed by separation, centrifugation, pressing or cooking; after removing the water, it enters the extraction stage. The most commonly used extraction method is to use organic solvents (such as hexane) for extraction, and the fish oil is fully contacted with the solvent through a mixing kettle to dissolve the fatty acids and fish oil therein; finally, the extracted mixed liquid is separated; finally, some adsorbents are added to adsorb the solid impurities in the fish oil, and the adsorbents are filtered out to obtain pure fish oil. In the prior art, during the separation and purification of fish oil, two kettles need to work together when the liquid is left to stand and separate, and the water phase needs to be separated into another kettle; when filtering after adsorption, the fish oil needs to be transferred to a centrifuge or a filter press; when performing the extraction process, the phase layer without fish oil needs to be separated into another kettle. Therefore, the existing fish oil purification process is carried out in multiple kettles, and the fish oil needs to be transferred multiple times during the purification process, resulting in a large number of kettles used, a complicated fish oil extraction process, and low fish oil extraction efficiency.

[0003] Therefore, the utility model provides a separation device which can simplify the fish oil purification process. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a separation device for fish oil production to solve the problem that the existing fish oil extraction process is complicated.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A separation device for fish oil production comprises a water phase kettle, an oil phase kettle and a filter; the oil phase kettle is arranged on the top of the water phase kettle, and the inner cavities of the oil phase kettle and the water phase kettle are connected; the oil phase kettle is connected to the filter through a feed pipe; and a stirring mechanism is arranged inside the oil phase kettle.

[0007] In this scheme, the unseparated fish oil mixture is transported to the water phase kettle, and the fish oil mixture is stratified inside the water phase kettle; as the liquid level of the fish oil mixture rises, the upper layer of the fish oil mixture enters the oil phase kettle to complete the liquid separation, and can be adsorbed or extracted after the liquid separation; the water phase kettle and the oil phase kettle are connected, and the layered oil phase automatically enters the oil phase kettle during liquid separation, without manual liquid separation, and there is no need to separate the oil phase or the water phase to other kettles, so the operation is efficient and simple; a stirring mechanism is set in the oil phase kettle, and the stirring can be directly started during adsorption or stirring to fully mix the fish oil; the impurities in the fish oil are adsorbed by the adsorbent and then transported to the filter, and the fish oil with higher purity is obtained by filtering; the fish oil extraction process is simplified and the fish oil extraction efficiency is improved.

[0008] Furthermore, the bottom of the oil phase kettle is a conical structure, and a bottom kettle port is arranged in the center of the conical structure; the top of the water phase kettle is an inverted conical structure, and a top kettle port is arranged in the center of the inverted conical structure; the bottom kettle port and the top kettle port are connected by a ball valve; and a liquid inlet is arranged at the bottom of the water phase kettle.

[0009] In this scheme, as the fish oil mixture is injected, the liquid level of the fish oil mixture in the water phase kettle rises, and the upper oil phase enters the oil phase kettle. However, during the injection process, the fish oil mixture at the bottom of the water phase kettle moves violently, and the oil phase and the water phase are mixed more seriously. The design of the conical structure at the bottom of the oil phase kettle can reduce the movement of the fish oil in the oil phase kettle caused by the water phase at the bottom of the water phase kettle; and the fish oil mixture is introduced from the bottom of the water phase kettle. Under the action of the gravity of the fish oil mixture, the movement degree of the upper oil phase is small and relatively stable, which ensures that the oil phase is in a static state during the liquid separation process and improves the liquid separation effect; the ball valve is designed, and when the oil phase is separated to a certain height, the ball valve is closed, and the next step can be directly performed in the oil phase kettle.

[0010] Furthermore, a liquid level observation tube is connected between the water phase kettle and the oil phase kettle.

[0011] In this solution, a liquid level observation tube is designed to facilitate observation of the height of the interface between the oil phase and the water phase during the liquid separation process so as to select the appropriate time to close the ball valve.

[0012] Furthermore, a filter screen is provided on the top of the water phase kettle.

[0013] In this solution, a filter is designed to prevent floating impurities in the fish oil mixture from following the oil phase into the oil phase kettle during liquid separation.

[0014] Furthermore, the stirring mechanism includes a stirring shaft and stirring blades. The stirring shaft is movably connected to the top of the oil phase kettle. The top of the oil phase kettle is provided with a stirring motor. The stirring motor and the stirring shaft are connected through a coupling. A plurality of stirring blades are distributed on the stirring shaft.

[0015] In this scheme, after the separation is completed, an adsorbent such as activated carbon is added to the oil phase kettle to adsorb impurities in the fish oil. During the adsorption, stirring can be performed by a stirring mechanism to improve the adsorption efficiency; or when performing an extraction operation, an extractant is added to the oil phase kettle, and stirring is turned on to accelerate the mixing of the fish oil and the extractant to improve the extraction efficiency.

[0016] Furthermore, a scraper is connected below the stirring shaft, and the scraper abuts against the bottom of the oil phase kettle.

[0017] In this scheme, when the fish oil is transported to the filter, the fish oil and some adsorbed substances will adhere to the bottom of the oil phase kettle. The stirring motor is turned on and rotated slowly to drive the scraper to rotate, which can scrape off the surface material of the bottom of the kettle.

[0018] Furthermore, the filter includes a fish oil tank, a filter cylinder net is transversely arranged inside the fish oil tank, an auger shaft is transversely arranged on the filter cylinder net, and two ends of the auger shaft are rotatably connected to two sides of the fish oil tank respectively; a filter motor is arranged on one side of the auger shaft; and an auger blade is wound around the auger shaft;

[0019] One end of the feed pipe away from the oil phase kettle is connected to the filter cylinder net.

[0020] In this scheme, after the fish oil is injected into the filter cartridge from one end of the filter cartridge, the auger shaft drives the auger blades to rotate and transport the fish oil to the other end of the filter cartridge; during the transportation process, the pure fish oil flows out of the filter cartridge and flows into the fish oil tank; the adsorbent carried in the fish oil is filtered in the filter cartridge and transported to the end of the filter cartridge by the auger blades for easy recycling; the filter cartridge has a large filtration area and high filtration efficiency.

[0021] Furthermore, a recovery port is provided on one side of the filter cylinder net away from the feed pipe; and a fish oil collection port is provided at the bottom of the fish oil tank.

[0022] In this solution, the recovery port is used to recover the adsorbed material; and the fish oil collection port is used to collect fish oil.

[0023] The beneficial effects of the utility model are:

[0024] In the separation device for fish oil production provided by the utility model, a method of injecting the fish oil mixture under pressure from the bottom of the water phase kettle is adopted. When the fish oil mixture is injected in this method, the density of the oil phase is small and the speed of rising with the liquid surface is fast, while the density of the water phase is large and the speed of rising with the liquid surface is slow, so liquid separation can be achieved quickly; and the fish oil mixture is injected from the bottom of the water phase kettle, and the liquid surface at the top of the fish oil mixture moves smoothly during the injection process, that is, the oil phase state is stable, which is conducive to rapid stratification. The contraction-shaped design of the bottom of the oil phase kettle and the top of the water phase kettle can further ensure the stability of the fish oil in the oil phase kettle and provide a static environment for the stratification of the upper fish oil; and the design is also convenient for installing a ball valve to control the on and off of the oil phase kettle and the water phase kettle. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The utility model is a schematic diagram of the cross-sectional structure of a separation device for fish oil production.

[0026] Reference numerals:

[0027] 1. Water phase kettle; 11. Top kettle port; 12. Ball valve; 13. Filter screen; 2. Oil phase kettle; 21. Bottom kettle port; 3. Filter; 31. Filter cartridge net; 311. Recovery port; 32. Fish oil tank; 321. Fish oil collection port; 33. Auger blade; 34. Filter motor; 4. Liquid level observation tube; 5. Stirring mechanism; 51. Stirring motor; 52. Scraper; DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. The specific implementation of the utility model is described below to facilitate the understanding of the utility model by those skilled in the art, but it should be clear that the utility model is not limited to the scope of the specific implementation. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the utility model defined and determined by the attached claims, these changes are obvious, and all inventions and creations conceived using the utility model are protected.

[0029] like Figure 1 As shown, this embodiment provides a separation device for fish oil production, which is used for the separation and purification of fish oil; the separation device can quickly realize the liquid separation process of fish oil, and does not require the use of multiple kettles in the liquid separation, which simplifies the separation steps of fish oil and improves the separation efficiency of fish oil; it specifically includes:

[0030] Water phase kettle 1, oil phase kettle 2, filter 3 and liquid level observation tube 4;

[0031] Among them, an oil phase kettle 2 is arranged on the top of the water phase kettle 1, and the inner cavities of the oil phase kettle 2 and the water phase kettle 1 are connected. When separating the liquid, the unseparated fish oil mixture is injected into the water phase kettle 1, and the fish oil mixture is layered inside the water phase kettle 1; as the liquid level of the fish oil mixture rises, the upper layer of the fish oil mixture enters the oil phase kettle 2 to complete the liquid separation; a liquid level observation tube 4 is also connected between the water phase kettle 1 and the oil phase kettle 2 to facilitate the observation of the height of the interface between the oil phase and the water phase during the liquid separation process; a stirring mechanism 5 is arranged inside the oil phase kettle 2 to stir the fish oil inside the oil phase kettle 2; the oil phase kettle 2 is connected to the filter 3 through a feed pipe.

[0032] The bottom of the oil phase kettle 2 is a conical structure, and a bottom kettle port 21 is provided at the center of the conical structure; the top of the water phase kettle 1 is an inverted conical structure, and a top kettle port 11 is provided at the center of the inverted conical structure; the bottom kettle port 21 and the top kettle port 11 are connected by a ball valve 12; a liquid inlet is provided at the bottom of the water phase kettle 1; as the fish oil mixture is injected, the liquid level of the fish oil mixture in the water phase kettle 1 rises, and the upper oil phase enters the oil phase kettle 2, but the fish oil mixture at the bottom of the water phase kettle 1 moves violently during the injection process, and the oil phase and the water phase are mixed more seriously. The design of the conical structure at the bottom of the oil phase kettle 2 can reduce the movement of the fish oil in the oil phase kettle 2 caused by the water phase at the bottom of the water phase kettle 1; and the fish oil mixture is introduced from the bottom of the water phase kettle 1. Under the action of the gravity of the fish oil mixture, the movement degree of the upper oil phase is small and relatively stable, which ensures that the oil phase is in a static state during the liquid separation process and improves the liquid separation effect; the ball valve 12 is designed, and when the oil phase is separated to a certain height, the ball valve 12 is closed, and the next step can be directly performed in the oil phase kettle 2. As a preferred embodiment of this embodiment, the ball valve can be a conventional stainless steel manual valve.

[0033] A filter screen 13 is provided on the top of the water phase kettle 1 to prevent floating impurities in the fish oil mixture from following the oil phase into the oil phase kettle 2 during liquid separation.

[0034] The stirring mechanism 5 includes a stirring shaft and stirring blades. The stirring shaft is movably connected to the top of the oil phase kettle 2. A stirring motor 51 is provided on the top of the oil phase kettle 2. The stirring motor 51 and the stirring shaft are connected through a coupling. A plurality of stirring blades are distributed on the stirring shaft. After the liquid separation is completed, an adsorbent such as activated carbon is added to the oil phase kettle 2 to adsorb impurities in the fish oil. During the adsorption, the stirring mechanism 5 can be used for stirring to improve the adsorption efficiency. Alternatively, when performing the extraction operation, an extractant is added to the oil phase kettle 2, and stirring is started to accelerate the mixing of the fish oil and the extractant to improve the extraction efficiency.

[0035] A scraper 52 is connected below the stirring shaft and abuts against the bottom of the oil phase kettle 2. When the fish oil is transported to the filter 3, the fish oil and some adsorbed substances will adhere to the bottom of the oil phase kettle 2. The stirring motor 51 is turned on and rotated slowly to drive the scraper 52 to rotate, thereby scraping off the surface substances on the bottom of the kettle.

[0036] The filter 3 comprises a fish oil tank 32, a filter cylinder net 31 and a filter motor 34; a filter cylinder net 31 is transversely arranged inside the fish oil tank 32, and an auger shaft is transversely arranged on the filter cylinder net 31, and two ends of the auger shaft are rotatably connected to the two sides of the fish oil tank 32 respectively; a filter motor 34 is arranged on one side of the auger shaft; an auger blade 33 is wound around the auger shaft; the end of the feed pipe away from the oil phase kettle 2 is connected to the filter cylinder net 31; when filtering, the fish oil is injected into the filter cylinder net 31 from one end of the filter cylinder net 31 through the feed pipe, and the auger shaft drives the auger blade 33 to rotate to transport the fish oil to the other end of the filter cylinder net 31; during the transportation process, the pure fish oil flows out of the filter cylinder net 31 and flows into the fish oil tank 32; the adsorbent carried in the fish oil is filtered in the filter cylinder net 31, and is transported to the end of the filter cylinder net 31 by the auger blade 33 for easy recycling; the filter cylinder net 31 has a large filtering area and a high filtering efficiency.

[0037] A recovery port 311 is provided on one side of the filter cylinder net 31 away from the feed pipe; a fish oil collection port 321 is provided at the bottom of the fish oil tank 32; the recovery port 311 is used to recover the adsorbed material; and the fish oil collection port 321 is used to collect fish oil.

[0038] The working principle of this embodiment is:

[0039] When the separation device provided in this embodiment is used, the fish oil mixture is injected into the water phase kettle 1 through the liquid inlet. After the injection, the water phase and the oil phase in the fish oil mixture are separated due to their own density relationship; as the liquid level of the fish oil mixture in the water phase kettle 1 rises, the upper oil phase slowly enters the oil phase kettle 2; when the oil phase fills the oil phase kettle 2, or when the separation level of the oil phase and the water phase rises to close to the ball valve 125-10cm, the ball valve 12 is closed to complete the liquid separation. After the liquid separation, an adsorbent is added to the oil phase to adsorb the impurities therein, and the stirring mechanism 5 can be turned on during the adsorption to stir slowly; after the adsorption, the oil phase containing the adsorbent is transported to the filter cylinder net 31 for filtration, and the pure fish oil enters the fish oil tank 32, and the adsorbent is transported to the recovery port 311 by the auger blade 33 for recovery.

[0040] If there are oily substances other than fish oil in the oil phase after separation, extraction can be performed by using an extraction process. Hexane can be used as the extractant for extraction and separation. Stirring can also be started during the extraction process to accelerate mixing. After separation, open the ball valve 12 to separate the impure oil phase into the water phase kettle 1.

[0041] Those skilled in the art will appreciate that the embodiments herein are intended to help readers understand the principles of the present invention, and should be understood that the protection scope of the present invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific variations and combinations based on the technical inspiration disclosed in the present invention without departing from the essence of the present invention, and these variations and combinations are still within the protection scope of the present invention.

Claims

1. A separation device for fish oil production, characterized in that: The invention comprises a water phase kettle (1), an oil phase kettle (2) and a filter (3); the oil phase kettle (2) is arranged on the top of the water phase kettle (1), and the inner cavities of the oil phase kettle (2) and the water phase kettle (1) are communicated; the oil phase kettle (2) is connected to the filter (3) via a feed pipe; and a stirring mechanism (5) is arranged inside the oil phase kettle (2).

2. The separation device for fish oil production according to claim 1, characterized in that: The bottom of the oil phase kettle (2) is a conical structure, and a bottom kettle opening (21) is provided at the center of the conical structure; the top of the water phase kettle (1) is an inverted conical structure, and a top kettle opening (11) is provided at the center of the inverted conical structure; the bottom kettle opening (21) and the top kettle opening (11) are connected via a ball valve (12); and a liquid inlet is provided at the bottom of the water phase kettle (1).

3. The separation device for fish oil production according to claim 2, characterized in that: A liquid level observation tube (4) is also connected between the water phase kettle (1) and the oil phase kettle (2).

4. The separation device for fish oil production according to claim 3, characterized in that: A filter screen (13) is provided on the top of the water phase kettle (1).

5. The separation device for fish oil production according to claim 4, characterized in that: The stirring mechanism (5) comprises a stirring shaft and stirring blades. The stirring shaft is movably connected to the top of the oil phase kettle (2). The top of the oil phase kettle (2) is provided with a stirring motor (51). The stirring motor (51) and the stirring shaft are connected via a coupling. A plurality of stirring blades are distributed on the stirring shaft.

6. The separation device for fish oil production according to claim 5, characterized in that: A scraper (52) is connected below the stirring shaft, and the scraper (52) abuts against the bottom of the oil phase kettle (2).

7. The separation device for fish oil production according to claim 1, characterized in that: The filter (3) comprises a fish oil tank (32), a filter cylinder net (31) is transversely arranged inside the fish oil tank (32), an auger shaft is transversely arranged on the filter cylinder net (31), and two ends of the auger shaft are rotatably connected to two sides of the fish oil tank (32) respectively; a filter motor (34) is arranged on one side of the auger shaft; and an auger blade (33) is wound around the auger shaft; One end of the feed pipe away from the oil phase kettle (2) is connected to the filter cylinder net (31).

8. The separation device for fish oil production according to claim 7, characterized in that: A recovery port (311) is provided on the side of the filter cylinder net (31) away from the feed pipe; and a fish oil collection port (321) is provided at the bottom of the fish oil tank (32).

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