Efficient cod liver oil separation and purification integrated device and process

Abstract

The invention relates to an efficient cod liver oil separation and purification integrated device and process, and relates to the technical field of cod liver oil purification. Comprising a bottom plate, a treatment tank, a distillation tank and a purification unit are sequentially arranged on the bottom plate in the length direction of the bottom plate, and the purification unit comprises a reaction tank and a filtering tank which are arranged from top to bottom in the height direction of the bottom plate. According to the present invention, the following problems in the cod liver oil purification process in the prior art can be solved: by arranging the treatment tank, the distillation tank and the purification unit which are communicated, the fish liver is subjected to distillation extraction and low-temperature purification after pretreatment, such that the sealing state is ensured in the whole process, the oxidation due to the contact with the air is prevented, and the purification effect of the cod liver oil is improved; by combining a distillation extraction method and a low-temperature crystallization method, the cod liver oil can be effectively extracted, saturated fatty acid and part of monounsaturated fatty acid can be separated, liquid polyunsaturated fatty acid is reserved, and the method is suitable for wide health requirements.

Description

Technical Field

[0001] The invention relates to the technical field of cod liver oil purification, and in particular to an integrated device and process for efficient separation and purification of cod liver oil. Background Art

[0002] Cod liver oil is a fatty oil extracted from the livers of sharks, cod, etc. It is a nutritious oil substance that contains many ingredients that are very important to human health. These fish usually live in deep sea environments, and their livers can accumulate a large amount of fat-soluble nutrients.

[0003] As a natural nutritional health product, cod liver oil is rich in important ingredients such as vitamin A and D, and has a variety of health benefits, such as enhancing immunity, improving vision, and promoting bone development. However, since cod liver oil contains a variety of ingredients, including fatty acids, phenols, pigments, etc., it needs to be efficiently separated and purified to fully exert its effects.

[0004] For example, a Chinese patent with publication number CN109762659A discloses a fish oil purification tank; it discloses a fish oil purification tank, the heating component of the prior art does not need to be arranged along the surface of the tank body in a large area, the manufacturing cost is low, and the unpurified part of the bottom of the fish oil is continuously sent to the upper part of the fish oil to accelerate the vaporization rate of the fish oil. After the fish oil at the upper part is vaporized, it moves a short distance and is condensed and recovered by the condensation component, the condensation efficiency is high, and the liquid level of the fish oil is continuously raised by the lifting component, so that the upper part of the fish oil is always in contact with the heating component, avoiding the occurrence of coking on the surface of the tank body.

[0005] However, the above device still has some shortcomings in actual use: 1. The above-mentioned device extracts fish oil by heating and vaporizing. It is difficult to effectively separate the different components in the fish oil during the extraction process, resulting in a high impurity content in the final extracted fish oil, and the purity is not ideal. There are obvious limitations, and it is difficult to obtain high-purity fish oil and fish liver.

[0006] 2. There is a lack of equipment for processing cod liver oil raw materials. Only the extracted cod liver oil can be purified, which has a small scope of application. In this case, the cod liver needs to be processed before adding it to the purification tank. During the transfer process, the fish liver may be oxidized due to contact with air, affecting the subsequent production quality of the cod liver oil.

[0007] Therefore, under the above-stated viewpoints, it is of great significance to improve and perfect the purification tank of cod liver oil, improve the situation that the purity of fish oil is not high due to a single extraction method, and be able to process the raw materials before extracting the fish oil. Summary of the invention

[0008] In order to solve the above problems, the present invention provides an integrated device and process for efficient separation and purification of cod liver oil.

[0009] On the one hand, an integrated device for efficient separation and purification of cod liver oil comprises a base plate, on which a processing tank, a distillation tank and a purification unit are arranged in sequence along its length direction, wherein the purification unit comprises a reaction tank and a filtering tank arranged from top to bottom along the height direction of the base plate.

[0010] A feed port is provided at the top of the treatment tank, a delivery pipe 1 is provided between the treatment tank and the distillation tank, the delivery pipe 1 is respectively connected to the bottom of the treatment tank and the inside of the distillation tank, a delivery pipe 2 is provided between the distillation tank and the reaction tank, the delivery pipe 2 is respectively connected to the top of the distillation tank and the top of the reaction tank, and a delivery pipe 3 is provided between the reaction tank and the filtration tank.

[0011] Preferably, the middle section and the bottom of the processing tank are provided with grooves, and gate assemblies are arranged in the grooves. The processing tank is divided into a crushing chamber, a stirring chamber and a conveying chamber through the gate assembly. A main shaft penetrating the bottom of the processing tank is arranged inside the processing tank and rotates along its axis, and a crushing part is arranged inside the crushing chamber.

[0012] Preferably, the crushing element includes a mounting ring, which is slidably sleeved on the main shaft, a mounting block is rotatably sleeved on the outer side of the mounting ring, a plurality of drive shafts are equidistantly arranged on the mounting block along the axis of the main shaft, a plurality of blades are arranged on the drive shaft along its axis, a drive gear is installed at one end of the drive shaft away from the mounting block, a drive gear ring meshing with the drive gear is slidably arranged inside the processing tank, and the drive gear ring is connected to the mounting ring through a connecting rod.

[0013] Preferably, a ring is rotatably provided on a section of the main shaft located at the bottom of the stirring chamber, and the ring passes through the bottom of the processing tank, and a plurality of driving rods are equidistantly provided on the ring along the axis of the main shaft, and the driving rods are connected to the bottom of the mounting block, wherein the driving rods are a multi-stage telescopic structure.

[0014] Preferably, a spiral groove is provided on the main shaft, a matching rod is provided inside the mounting ring, the matching rod is an elastic telescopic structure, the spiral groove is arranged as a one-way thread inside the crushing chamber, and is arranged as a reciprocating thread inside the stirring chamber.

[0015] Preferably, a section of the main shaft located in the crushing chamber is provided with a mounting groove, a guide block is provided inside the mounting groove, a spiral guide groove corresponding to the spiral groove is provided on the guide block, and the matching rod is movably matched with the guide groove.

[0016] Preferably, a conveying member for conveying fish liver is also arranged inside the conveying tube 1, and the conveying member includes a conveying auger rotatably arranged inside the conveying tube 1.

[0017] Preferably, a stirring shaft is arranged inside the reaction tank and passes through the top of the reaction tank, and a plurality of stirring blades are installed on the stirring shaft at equal intervals.

[0018] On the other hand, the integrated process for efficient separation and purification of cod liver oil is as follows: S1. Fish liver processing: The fish liver is crushed by a crushing element inside the processing tank, and then mixed with water by the crushing element, and then the mixture of fish liver and water is transported to the distillation tank through a transport pipe 1; S2, distillation extraction: The water in the mixture is distilled off by high-pressure distillation inside the distillation tank, and then the cod liver oil is gasified by distillation, and the gasified cod liver oil enters the reaction tank through the second delivery pipe; S3, low temperature reaction: in a reaction tank, the vaporized cod liver oil is cooled to a low temperature, a solvent is added to the reaction tank, and then the mixture is fully mixed by a stirring blade to drive the saturated fatty acids and some monounsaturated fatty acids to crystallize and precipitate; S4. Filtering crystals: The mixed cod liver oil enters the filter tank through the delivery pipe three, and the crystals are filtered out to retain the liquid polyunsaturated fatty acids.

[0019] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present invention provides a connected processing tank, a distillation tank and a purification unit to pre-treat the fish liver and then perform distillation extraction and low-temperature purification. No extra equipment is needed for transportation during the process, and a sealed state is guaranteed throughout the process, which can effectively prevent oxidation caused by contact with air and improve the purification effect of cod liver oil.

[0020] 2. The present invention combines the distillation extraction method with the low-temperature crystallization method, which can not only effectively extract cod liver oil, but also separate saturated fatty acids and part of monounsaturated fatty acids, retaining liquid polyunsaturated fatty acids, and is suitable for a wide range of health needs.

[0021] 3. The present invention sets delivery pipe 1, delivery pipe 2, delivery pipe 3 and delivery pipe 4. The entire process flow realizes continuous production through delivery pipe 1, delivery pipe 2, delivery pipe 3 and electronic valves, reduces the manual operation links, improves production efficiency, and delivery pipe 4 between the distillation tank and the treatment tank realizes the recycling of water, saving water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2It is a schematic diagram of the cross-sectional structure inside the present invention.

[0025] Figure 3 It is a schematic diagram of the structure inside the processing tank of the present invention.

[0026] Figure 4 It is a structural schematic diagram of the gate assembly of the present invention.

[0027] Figure 5 It is a structural schematic diagram of the main shaft of the present invention.

[0028] Figure 6 It is a schematic diagram of the structure of the mounting ring and the guide block of the present invention.

[0029] Figure 7 It is a structural schematic diagram of the crushing piece of the present invention.

[0030] Figure 8 It is a schematic diagram of the structure of the present invention driving the mounting block to rotate.

[0031] Fig. 9 It is a schematic diagram of the structure inside the purification unit of the present invention.

[0032] In the figure, 1, bottom plate; 10, treatment tank; 11, distillation tank; 12, purification unit; 13, mounting ring; 140, collar; 141, driving rod; 15, spiral groove; 16, matching rod; 17, guide block; 18, guide groove; 120, reaction tank; 121, filter tank; 130, delivery pipe 1; 131, delivery pipe 2; 132, delivery pipe 3; 133, delivery pipe 4; 2, gate assembly; 20, driving ring 1; 21, driving ring 2; 22. Matching groove; 23. Arc-shaped driving groove; 24. Triangular plate; 25. Connecting shaft; 26. Matching gear; 100. Crushing chamber; 101. Stirring chamber; 102. Conveying chamber; 14. Main shaft; 3. Crushing part; 30. Mounting block; 31. Blade; 32. Driving gear; 33. Driving gear ring; 5. Conveying part; 50. Conveying auger; 60. Stirring shaft; 61. Stirring blade; 62. Filter plate; 8. Flipping part; 80. Flipping auger. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-Figure 9 Embodiments of the present invention are described in detail.

[0034] The embodiment of the present application discloses an integrated device and process for efficient separation and purification of cod liver oil, which illustrates that the present invention is mainly used in the process of cod liver oil purification, and can avoid the problem of low purity of cod liver oil and loss of nutrients caused by a single extraction method in terms of technical effect; in particular, before the cod liver oil is separated and purified, the raw materials can be crushed to enhance the extraction efficiency of the cod liver oil.

[0035] Embodiment 1: Reference Figure 1 and Figure 2 As shown, it includes a base plate 1, on which a processing tank 10, a distillation tank 11 and a purification unit 12 are arranged in sequence along its length direction, wherein the purification unit 12 includes a reaction tank 120 and a filtering tank 121 which are arranged from top to bottom in the opposite direction along the height of the base plate 1.

[0036] The frozen and thawed fish liver is placed in the processing tank 10, crushed and mixed with water, and then the mixture of fish liver and water is transported to the distillation tank 11, and the water in the mixture is distilled off by high-pressure distillation in the distillation tank 11, and then the cod liver oil is gasified by distillation. The gasified cod liver oil will enter the reaction tank 120, and the cod liver oil is cooled to a low temperature. A solvent is added to the reaction tank 120 to drive the saturated fatty acids and part of the monounsaturated fatty acids to crystallize and precipitate, and then the crystals are filtered out in the filter tank 121 to retain the liquid polyunsaturated fatty acids, so that the cod liver oil becomes an important nutritional supplement suitable for a wide range of health needs.

[0037] A feed port is provided at the top of the processing tank 10 for placing the fish liver into the processing tank 10; a delivery pipe 130 is provided between the processing tank 10 and the distillation tank 11; both ends of the delivery pipe 130 are respectively connected to the bottom of the processing tank 10 and the inside of the distillation tank 11; a delivery pipe 2 131 is provided between the distillation tank 11 and the reaction tank 120; the delivery pipe 2 131 is respectively connected to the top of the distillation tank 11 and the top of the reaction tank 120; a delivery pipe 3 132 is provided between the reaction tank 120 and the filtration tank 121.

[0038] An electronic valve (not shown in the figure) is provided at the connection between the reaction tank 120 and the delivery pipe 3 132 . Before the cod liver oil and the solvent in the reaction tank 120 are completely mixed, the electronic valve is always in a closed state.

[0039] There is no need to transport the cod liver and cod liver oil throughout the entire process, ensuring that they are always in a sealed state to prevent oxidation during the distillation or low-temperature crystallization process, which would affect the extraction quality of the cod liver oil.

[0040] A delivery pipe 133 is also provided between the distillation tank 11 and the processing tank 10. The delivery pipe 133 is connected to the stirring chamber 101 in the processing tank 10 to transport the water vapor in the distillation tank 11 back to the processing tank 10 to achieve water recycling.

[0041] It should be noted that electronic valves are also provided at the connection points between the delivery pipe 2 131 and the delivery pipe 4 133 and the distillation tank 11. Since the vaporization temperature of cod liver oil is higher than the vaporization temperature of water, when heated to a certain temperature, the water will be vaporized first. At this time, the electronic valve at the connection point between the delivery pipe 4 133 and the distillation tank 11 is opened. When the water is vaporized, the temperature is continuously increased to allow the cod liver oil to begin to vaporize. At this time, the electronic valve at the connection point between the delivery pipe 2 131 and the distillation tank 11 is opened, and the electronic valve at the connection point between the delivery pipe 4 133 and the distillation tank 11 is closed. The vaporized cod liver oil enters the reaction tank 120 through the delivery pipe 2 131.

[0042] Reference Figure 2 and Figure 3 As shown, it is a schematic diagram of the structure for pre-processing fish liver; specifically, the middle section and the bottom of the processing tank 10 are both provided with grooves, and gate assemblies 2 are provided in the grooves. The processing tank 10 is divided into a crushing chamber 100, a stirring chamber 101 and a conveying chamber 102 through the gate assembly 2.

[0043] A main shaft 14 penetrating the bottom of the processing tank 10 is arranged inside the processing tank 10 and rotates along its axis. A crushing piece 3 is arranged inside the crushing chamber 100 on the main shaft 14. The fish liver entering the processing tank 10 is crushed by the crushing piece 3 inside the crushing chamber 100. At this time, the two groups of gate assemblies 2 are closed. After the processing is completed, the upper gate assembly 2 is opened, and the fish liver falls onto the lower gate assembly 2. Then, the crushed fish liver is mixed with water by the crushing piece 3 in the stirring chamber 101. The water interacts with the oil in the fish liver, which can promote the dissolution and separation of the oil during subsequent distillation.

[0044] Reference Figure 3 and Figure 4 As shown, that is, a schematic diagram of the structure of the gate assembly 2; specifically, the gate assembly 2 includes a drive ring 20, which is arranged in a slot along the axis of the processing tank 10, and a drive ring 21 is rotatably arranged above the drive ring 20 inside the slot, a plurality of matching grooves 22 are opened on the drive ring 20, and a plurality of arc-shaped drive grooves 23 corresponding to the matching grooves 22 are opened on the drive ring 21, and a plurality of triangular plates 24 are arranged between the drive ring 1 20 and the drive ring 21 along the axis of the main shaft 14, and a connecting shaft 25 is installed at one end of the triangular plate 24, and both ends of the connecting shaft 25 are slidably connected with the matching grooves 22 and the arc-shaped drive grooves 23, and matching gears 26 are rotatably arranged on the bottom plate 1 and the outer wall of the processing tank 10, and the two matching gears 26 are respectively meshed with the corresponding drive ring 21.

[0045] By driving the driving ring 21 to rotate through the matching gear 26, the connecting shaft 25 can be driven to slide inside the arc-shaped driving groove 23. At this time, the connecting shaft 25 will drive the triangular plate 24 away from the main shaft 14. Since the arc-shaped driving groove 23 is inclined, the triangular plate 24 can be driven to rotate during the movement. During the movement, the other end of the connecting shaft 25 always slides inside the matching groove 22. At this time, the triangular plate 24 rotates uniformly to open the partition of the processing tank 10.

[0046] Reference Figure 3 , Figure 5 and Figure 7 As shown, it is a schematic diagram of the structure for crushing fish liver and adding water for stirring; specifically, the crushing member 3 includes a mounting ring 13, which is slidably sleeved on the main shaft 14, and a mounting block 30 is rotatably sleeved on the outer side of the mounting ring 13, and the mounting block 30 is sleeved on the outer side of the main shaft 14, and a plurality of drive shafts are equidistantly arranged on the mounting block 30 along the axis of the main shaft 14, and a plurality of blades 31 are arranged on the drive shaft along its axis, and a drive gear 32 is installed at one end of the drive shaft away from the mounting block 30, and a drive gear ring 33 meshing with the drive gear 32 is slidably arranged inside the processing tank 10, and the drive gear ring 33 is connected to the mounting ring 13 by a connecting rod, and the drive gear ring 33 slides up and down inside the processing tank 10 through the mounting ring 13.

[0047] The main shaft 14 is rotatably provided with a sleeve 140 at a section located at the bottom of the stirring chamber 101, and the sleeve 140 passes through the bottom of the processing tank 10. A plurality of driving rods 141 are equidistantly provided on the sleeve 140 along the axis of the main shaft 14, and the driving rods 141 are connected to the bottom of the mounting block 30, wherein the driving rods 141 are of a multi-stage telescopic structure, and can be extended and retracted following the lifting and lowering of the mounting ring 13.

[0048] Before the gate assembly 2 at the bottom of the crushing chamber 100 is opened, the collar 140 is rotated by an external drive. When the collar 140 rotates, the rotation of the collar 140 causes the driving rod 141 on the collar 140 to rotate with the mounting block 30. When the mounting block 30 rotates, the driving shaft on the mounting block 30 rotates along the axis of the main shaft 14. During the movement, the driving gear 32 on the driving shaft engages with the driving gear ring 33, causing the driving gear 32 to rotate. At this time, the blade 31 on the driving shaft can crush the fish liver until the fish liver is completely crushed.

[0049] Reference Figure 5 and Figure 6 As shown, specifically, a spiral groove 15 is opened on the main shaft 14, a matching rod 16 is arranged inside the mounting ring 13, the matching rod 16 is an elastic telescopic structure, the spiral groove 15 is arranged as a one-way thread inside the crushing chamber 100, and is arranged as a reciprocating thread inside the stirring chamber 101.

[0050] The main shaft 14 is rotated by external drive. During the rotation of the main shaft 14, the matching rod 16 on the mounting ring 13 will cooperate with the spiral groove 15 to drive the mounting ring 13 to rise and fall inside the processing tank 10 along the main shaft 14. When the fish liver inside the crushing chamber 100 is completely crushed, the gate assembly 2 at the bottom of the crushing chamber 100 opens, driving the fish liver inside the crushing chamber 100 to fall into the stirring chamber 101, and then water is injected into the stirring chamber 101 through the external water pipe. After the mounting ring 13 brings the mounting block 30 into the stirring chamber 101, since the spiral groove 15 inside the stirring chamber 101 is a reciprocating thread, the rotation of the main shaft 14 will drive the mounting ring 13 to rise and fall inside the stirring chamber 101, and after the fish liver inside the crushing chamber 100 completely falls into the stirring chamber 101, the gate assembly 2 will be closed. Due to the limiting of the gate assembly 2, it is ensured that the matching rod 16 on the mounting ring 13 always slides inside a section of the reciprocating thread of the spiral groove 15.

[0051] By lifting and lowering the mounting ring 13, the blade 31 on the mounting block 30 is driven to lift and lower inside the stirring chamber 101. At the same time, the driving gear ring 33 also follows the mounting block 30 to lift and lower inside the stirring chamber 101 through the connecting rod, ensuring that the driving gear 32 is always engaged with the driving gear ring 33. During the lifting and lowering of the mounting block 30, the sleeve ring 140 rotates synchronously, and synchronously drives the driving gear 32 to rotate along the main shaft 14, and drives the blade 31 to rotate along the driving shaft, ensuring that the water and the fish liver are fully integrated. In this process, water can be used as a heat transfer medium during the distillation process to help evenly transfer heat to the fish liver, thereby improving the distillation efficiency. It can also help to better release the oil in the fish liver and improve the oil extraction rate.

[0052] When the stirring is completed, it is necessary to drive the mounting ring 13 back into the crushing chamber 100. At this time, the gate assembly 2 at the bottom of the crushing chamber 100 is opened, the mounting ring 13 loses the limit of the gate assembly 2, and the main shaft 14 rotates in the opposite direction. The matching rod 16 inside the mounting ring 13 will enter a section of the one-way thread of the thread groove during the rising process, thereby driving the mounting ring 13 into the crushing chamber 100 for the next crushing operation.

[0053] Reference Figure 2 As shown, it is a schematic diagram of the structure for conveying the mixed fish liver; specifically, a conveying member 5 for conveying the fish liver is also arranged inside the conveying tube 130, and the conveying member 5 includes a conveying auger 50 rotatably arranged inside the conveying tube 130, and one end of the output shaft of the conveying auger 50 passes through the conveying tube 130 and is connected to the main shaft 14 through a universal joint.

[0054] After the fish liver and water are mixed, the gate assembly 2 inside the stirring chamber 101 is opened, and the mixture of the fish liver and water will fall into the inside of the conveying pipe 1 130, and then be conveyed to the distillation tank 11 through the conveying auger 50.

[0055] It should be noted that the universal joint on the output shaft of the conveying auger 50 is installed on the output shaft through the ratchet gear, ensuring that during the synchronous operation of the conveying auger 50 and the main shaft 14, only the mixture of fish liver and water can be conveyed toward the distillation tank 11.

[0056] Reference Fig. 9 As shown, it is a schematic diagram of the structure of cooling the cod liver oil and adding solvent; specifically, the reaction tank 120 is provided with a stirring shaft 60 passing through the top of the reaction tank 120, and a plurality of stirring blades 61 are equidistantly installed on the stirring shaft 60. A proper amount of solvent is added to the reaction tank 120, and the stirring shaft 60 rotates with the stirring blades to promote the full mixing of the solvent and the cod liver oil and ensure the rapid cooling of the cod liver oil. The stirring shaft 60 is connected to the main shaft 14 through a belt drive to ensure the consistency of the work of each link in the process of cod liver oil purification, and can achieve uninterrupted work.

[0057] Among them, the solvent is preferably an existing single solvent or a composite solvent to determine the optimal solvent ratio and crystallization conditions, thereby effectively improving the enrichment effect of polyunsaturated fatty acids.

[0058] A plurality of cooling plates (not shown in the figure) are arranged on the inner wall of the reaction tank 120 to cool the cod liver oil that enters the reaction tank 120 after vaporization, so as to condense it into a liquid state for easy collection and purification.

[0059] Reference Figure 6 and Figure 7 As shown, it is a schematic structural diagram of filtering the cod liver oil after the reaction; specifically, a filter plate 62 is arranged inside the filter tank 121, and the filter plate 62 is used to filter out the crystals in the cod liver oil.

[0060] Embodiment 2: On the basis of the first embodiment, in order to further improve the working efficiency of the mounting ring 13, a guide block is also proposed, which is conducive to facilitating the movement of the matching rod 16 on the mounting ring 13 inside the spiral groove 15, and when the mounting ring 13 returns to the inside of the crushing chamber, it is convenient for the matching rod 16 to smoothly enter a section of the one-way thread of the spiral groove 15.

[0061] Reference Figure 3 , Figure 6 and Figure 7As shown, it is a schematic diagram of the structure for driving the mounting ring 13 back into the crushing chamber 100. Specifically, a mounting groove is provided inside a section of the main shaft 14 located in the crushing chamber 100, a guide block 17 is provided inside the mounting groove, a spiral guide groove 18 corresponding to the spiral groove 15 is provided on the guide block 17, and the matching rod 16 is movably matched with the guide groove 18.

[0062] Due to the effect of gravity, the mounting ring 13 may return to a section of the reciprocating thread of the spiral groove 15 again during the rising process, and will not return to a section of the unidirectional thread, which will cause the mounting ring 13 to be unable to return to the crushing chamber 100. By setting the guide block 17, when the gate assembly 2 at the bottom of the crushing chamber 100 is opened, when the matching rod 16 inside the mounting ring 13 contacts the guide groove 18 on the guide block 17, the matching rod 16 extends and enters the guide groove 18. The guide block 17 is rotated by the main shaft 14, and the guide groove 18 on the guide block 17 cooperates with the matching rod 16 to drive the mounting ring 13 to move upward and return to the inside of the crushing chamber 100.

[0063] Embodiment three: On the basis of the first embodiment, in order to further improve the effect of cod liver distillation and ensure the sufficient vaporization of cod liver oil, a turning piece 8 is also proposed, which is conducive to turning the cod liver inside the distillation tank 11.

[0064] Reference Figure 2 As shown, that is, a schematic diagram of the structure for turning the fish liver; specifically, the turning member 8 includes a turning auger 80, and the turning auger 80 is rotatably arranged at the bottom of the distillation tank 11. During the distillation of the fish liver, the fish liver at the bottom of the distillation tank 11 can be turned upward by rotating the turning auger 80 to prevent the fish liver from accumulating at the bottom and affecting the oil yield.

[0065] During operation: the first step is to put the fish liver into the processing tank 10 through the feed port, and then drive the ring 140 to rotate. During the rotation, the driving gear 32 on the driving shaft engages with the driving gear ring 33, driving the driving shaft to rotate in the reverse direction. At this time, the blade 31 on the driving shaft can crush the fish liver until the fish liver is completely crushed.

[0066] Step 2: Cooperate with the gear 26 to drive the gate assembly 2 at the bottom of the crushing chamber 100 to open, and the crushed fish liver will fall into the stirring chamber 101. Water is injected into the stirring chamber 101 through an external water pipe. At this time, the main shaft 14 rotates, and the main shaft 14 and the mounting ring 13 cooperate to drive the mounting block 30 to move to the inside of the stirring chamber 101, and reciprocate in the stirring chamber 101. While moving, the blade 31 on the mounting block 30 will also rotate under the action of the driving gear ring 33 to fully blend the water and the fish liver.

[0067] Step 3: The driving gear 32 drives the gate assembly 2 at the bottom of the stirring chamber 101 to open, and the mixture of cod liver and water will fall into the inside of the delivery pipe 130, and then be transported to the distillation tank 11 through the delivery auger 50 to distill and extract the cod liver oil. After the cod liver oil begins to vaporize, the electronic valve at the connection point of the delivery pipe 2 131 and the distillation tank 11 opens, and the vaporized cod liver oil enters the reaction tank 120 through the delivery pipe 2 131.

[0068] Step 4: Add a proper amount of solvent into the reaction tank 120, and rotate the stirring shaft 60 with the stirring blades to ensure that the saturated fatty acids and part of the monounsaturated fatty acids are crystallized and precipitated.

[0069] Step 5: After the mixing is completed, the cod liver oil enters the filter tank 121 through the delivery pipe 3 132, and the crystals in the cod liver oil are screened out by the filter plate 62.

[0070] It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive.

[0071] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An integrated device for efficient separation and purification of cod liver oil, comprising a bottom plate (1), characterized in that: The bottom plate (1) is provided with a processing tank (10), a distillation tank (11) and a purification unit (12) in sequence along its length direction, wherein the purification unit (12) comprises a reaction tank (120) and a filtering tank (121) which are arranged from top to bottom along the height direction of the bottom plate (1); A feed port is provided at the top of the treatment tank (10); a delivery pipe 1 (130) is provided between the treatment tank (10) and the distillation tank (11); the delivery pipe 1 (130) is connected to the bottom of the treatment tank (10) and the interior of the distillation tank (11), respectively; a delivery pipe 2 (131) is provided between the distillation tank (11) and the reaction tank (120); the delivery pipe 2 (131) is connected to the top of the distillation tank (11) and the top of the reaction tank (120), respectively; and a delivery pipe 3 (132) is provided between the reaction tank (120) and the filtration tank (121).

2. The integrated device for efficient separation and purification of cod liver oil according to claim 1, characterized in that: The processing tank (10) is provided with slots in the middle section and the bottom, and gate assemblies (2) are provided in the slots. The processing tank (10) is provided with a crushing chamber (100), a stirring chamber (101) and a conveying chamber (102) through the gate assembly (2). A main shaft (14) penetrating the bottom of the processing tank (10) is provided in the processing tank (10) and rotatably arranged along its axis, and a crushing element (3) is provided inside the crushing chamber (100).

3. The integrated device for efficient separation and purification of cod liver oil according to claim 2, characterized in that: The crushing member (3) comprises a mounting ring (13), the mounting ring (13) being slidably sleeved on the main shaft (14), a mounting block (30) being rotatably sleeved on the outer side of the mounting ring (13), a plurality of drive shafts being equidistantly arranged on the mounting block (30) along the axis of the main shaft (14), a plurality of blades (31) being arranged on the drive shaft along its axis, a drive gear (32) being mounted on one end of the drive shaft away from the mounting block (30), a drive gear ring (33) being slidably arranged inside the processing tank (10) and meshing with the drive gear (32), and the drive gear ring (33) being connected to the mounting ring (13) via a connecting rod.

4. The integrated device for efficient separation and purification of cod liver oil according to claim 3, characterized in that: The main shaft (14) is rotatably provided with a collar (140) at a section located at the bottom of the stirring chamber (101), and the collar (140) penetrates the bottom of the processing tank (10). A plurality of driving rods (141) are equidistantly provided on the collar (140) along the axis of the main shaft (14), and the driving rods (141) are connected to the bottom of the mounting block (30), wherein the driving rods (141) are of a multi-stage telescopic structure.

5. The integrated device for efficient separation and purification of cod liver oil according to claim 4, characterized in that: The main shaft (14) is provided with a spiral groove (15), a matching rod (16) is provided inside the mounting ring (13), the matching rod (16) is an elastic telescopic structure, the spiral groove (15) is provided as a one-way thread inside the crushing chamber (100), and is provided as a reciprocating thread inside the stirring chamber (101).

6. The integrated device for efficient separation and purification of cod liver oil according to claim 5, characterized in that: A mounting groove is provided in a section of the main shaft (14) located in the crushing chamber (100), a guide block (17) is provided in the mounting groove, a spiral guide groove (18) corresponding to the spiral groove (15) is provided on the guide block (17), and the matching rod (16) is movably matched with the guide groove (18).

7. The integrated device for efficient separation and purification of cod liver oil according to claim 6, characterized in that: A conveying member (5) for conveying fish liver is also arranged inside the conveying tube one (130), and the conveying member (5) comprises a conveying auger (50) rotatably arranged inside the conveying tube one (130).

8. The integrated device for efficient separation and purification of cod liver oil according to claim 1, characterized in that: A stirring shaft (60) is arranged inside the reaction tank (120) and passes through the top of the reaction tank (120). A plurality of stirring blades (61) are equidistantly mounted on the stirring shaft (60).

9. An integrated process for efficient separation and purification of cod liver oil, comprising the integrated device for efficient separation and purification of cod liver oil according to any one of claims 1 to 8, characterized in that: The integrated process of efficient separation and purification of cod liver oil is as follows: S1. Fish liver processing: The fish liver is crushed by a crushing element (3) inside the processing tank (10), and then water is added to the crushing element (3) for mixing, and then the mixture of fish liver and water is transported to the distillation tank (11) through a transport pipe (130); S2, distillation extraction: removing water from the mixture by high-pressure distillation inside the distillation tank (11), and then driving the cod liver oil to gasify by distillation. The gasified cod liver oil will enter the reaction tank (120) through the second delivery pipe (131); S3, low temperature reaction: in a reaction tank (120), the vaporized cod liver oil is cooled to a low temperature, a solvent is added to the reaction tank (120), and then the mixture is fully mixed by a stirring blade (61), so as to drive the saturated fatty acids and some monounsaturated fatty acids to crystallize and precipitate; S4, filtering crystals: the mixed cod liver oil enters the filtering tank (121) through the delivery pipe three (132), and the crystals are filtered out to retain the liquid polyunsaturated fatty acids.

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