Fish oil mixing and filtering device with spiral heating pipe

Abstract

The utility model discloses a fish oil mixing filter device with spiral heating pipe. Including heating assembly, stirring subassembly, filter component and feeding assembly. Heating assembly has open heating bucket and spiral heating pipe, stirring subassembly contains mixing cavity, hollow oil pipe, rotating electrical machine, rotating shaft and stirring blade, filter component is constituted by filter bucket, lifting platform and filter baffle, and the first oil inlet pipe and second oil inlet pipe of feeding assembly are connected with crude oil tank and lye pool respectively. The device integrates multiple component functions, heats up quickly and evenly, the spiral heating pipe increases the heat exchange area, solves the traditional heating malady, the mixing and filtering are integrated, the transfer link is saved, the oxidation risk and the viscosity increase problem are reduced, the filter and the maintenance are optimized, the convex design and the liftable platform can separate, replace and clean the filter material, the oil inlet pipe is beneficial to the accurate proportioning and initial mixing. The device is suitable for refining fish oil and other materials, has multiple advantages, effectively integrates the function and has remarkable benefits.

Description

Technical Field

[0001] This utility model relates to the technical field of aquatic feed processing equipment, and in particular to a fish oil mixing and filtration device with a spiral heating tube. Background Technology

[0002] Fish oil, as an important nutritional supplement and food additive rich in Omega-3 polyunsaturated fatty acids (such as EPA and DHA), requires careful attention to the mixing and filtration processes during its production. In the refining stage, fish oil is typically thoroughly mixed with decolorizing agents (such as activated clay), antioxidants, or other additives, and maintained at a specific temperature for a certain period to achieve decolorization, deodorization, and stabilization. Subsequently, efficient filtration is necessary to remove solid impurities from the mixture (such as waste decolorizing agents, trace amounts of colloids, and mechanical impurities) to obtain a pure and clear finished fish oil product.

[0003] Currently, mixing and filtration equipment in fish oil production lines are typically separate. The mixing process usually takes place in a jacketed heating tank with an agitator, where the material inside the tank is indirectly heated by a heat transfer medium (such as hot water or steam) within the jacket. However, this heating method has significant drawbacks: First, the heat transfer efficiency is low and uneven, with the material near the tank wall at a higher temperature, while the material in the central area may be colder, resulting in a large temperature difference within the mixing system, affecting mixing uniformity and reaction / adsorption effects; second, the heating rate is slow, especially when processing large batches of material, leading to high energy consumption and limited production efficiency; third, for fish oil with high viscosity, the uniformity of jacket heating is even worse, easily leading to localized overheating and accelerating the oxidation and deterioration of the fish oil.

[0004] To address the aforementioned issues, the industry urgently needs a new type of fish oil processing device that can effectively integrate mixing and filtration functions, and significantly improve heating efficiency, uniformity, and ease of temperature control, thereby reducing energy consumption, increasing production efficiency, ensuring fish oil quality, and simplifying operating procedures. Utility Model Content

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a fish oil mixing and filtering device with a spiral heating tube.

[0006] A fish oil mixing and filtering device with a spiral heating tube according to a first aspect embodiment of the present invention is characterized in that it comprises: The heating assembly includes a heating barrel with an open bottom and a spiral heating tube surrounding the outer wall of the heating barrel; The stirring assembly includes a mixing chamber disposed above the heating tank, a hollow oil pipe connecting the mixing chamber to the heating tank, a rotary motor mounted on the upper part of the mixing chamber, a rotating shaft connected to the output end of the rotary motor, one end of the rotating shaft connected to the rotary motor, and the other end extending through the hollow oil pipe into the interior of the heating tank, and a plurality of stirring blades disposed on the rotating shaft; The filter assembly includes a filter barrel disposed at the bottom of the heating barrel, a liftable lifting platform installed on the upper part of the filter barrel, a filter baffle detachably installed in the middle of the lifting platform, and the bottom of the heating barrel being convex and detachably embedded in the lifting platform. The feeding assembly includes a first oil inlet pipe and a second oil inlet pipe disposed on the mixing chamber. The first oil inlet pipe is connected to a crude oil tank, and the second oil inlet pipe is connected to an alkali solution tank via a water pump.

[0007] According to an embodiment of the present invention, a fish oil mixing and filtration device with a spiral heating tube has at least the following beneficial effects: The fish oil mixing and filtration device with a spiral heating tube provided by the present invention significantly improves the efficiency and quality of the fish oil mixing and filtration process through the integrated design of the heating component, stirring component, filtration component, and feeding component. Its beneficial effects are mainly reflected in: 1) High-efficiency and uniform heating: The spiral heating tube arranged around the outer wall of the heating tank greatly increases the heat exchange area, enabling the fish oil in the heating tank to heat up quickly and uniformly. This effectively solves the problems of low efficiency and uneven temperature in traditional jacket heating or simple coil heating, ensuring the sufficiency and consistency of the mixing reaction (such as decolorization), while avoiding fish oil oxidation caused by local overheating; 2) Integrated mixing and filtration: The mixing chamber is connected to the heating tank via a hollow oil pipe. The bottom of the heating tank is directly and detachably embedded in the filter tank, which has a liftable platform and a removable filter baffle. This allows mixing and filtration to be completed continuously within the same closed system, completely eliminating the step of transferring fish oil to an independent filter after mixing. This not only significantly shortens the production cycle and improves efficiency, but also significantly reduces the risk of oxidation of fish oil during the transfer process and avoids the problem of increased viscosity caused by temperature drop during transfer; 3) Optimized filtration and maintenance: The convex design at the bottom of the heating tank fits closely with the liftable platform of the filter tank. Combined with the removable filter baffle, the heating tank and filter tank can be easily separated after the filtration operation is completed. The filter media can be easily removed and replaced / cleaned, solving the problems of difficult cleaning and dead corners in traditional built-in complex heating tubes or separate equipment. Maintenance is simple and efficient; 4) Precise control and flexibility: The first and second oil inlet pipes are connected to the crude oil tank and the alkali tank (or other additives) respectively, facilitating precise proportioning and initial mixing of fish oil and additives (such as decolorizing agents and alkali deacidification agents) within the mixing chamber, thus improving the accuracy of process control. In summary, this invention effectively integrates mixing, heating, and filtration functions, offering significant advantages such as rapid and uniform heating, low energy consumption, high production efficiency, stable fish oil quality (reduced oxidation), smooth filtration (maintaining suitable temperature and reducing viscosity), simple operation, and easy cleaning and maintenance. It is particularly suitable for refining heat-sensitive, easily oxidized materials such as fish oil, where viscosity varies greatly with temperature.

[0008] According to some embodiments of the present invention, the spiral heating tube includes an electric heating tube or a hot water tube.

[0009] According to some embodiments of the present invention, the lifting platform includes a guide column disposed on the inner wall of the filter barrel, and an annular lifting plate slidably sleeved on the guide column. A tension spring is connected between the annular lifting plate and the filter barrel. An annular boss is provided on the annular lifting plate, and a flow guiding slope is provided on the inner side of the annular boss. A concave groove that mates with the annular boss is provided at the bottom of the heating barrel. The heating barrel is embedded in the annular boss through the concave groove and abuts against the annular lifting plate.

[0010] According to some embodiments of the present invention, a stirring blade is provided at one end of the rotating shaft located in the mixing chamber.

[0011] According to some embodiments of the present invention, an oil drain pipe is installed at the bottom of the filter barrel, and a regulating valve is provided on the oil drain pipe.

[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the internal structure of an embodiment of the present utility model.

[0014] 100. Heating assembly; 110. Heating tank; 111. Concave groove; 120. Spiral heating tube; 200. Stirring assembly; 210. Mixing chamber; 220. Hollow oil pipe; 230. Rotary motor; 240. Rotating shaft; 250. Stirring blade; 300. Filter assembly; 310. Filter tank; 311. Oil drain pipe; 320. Lifting platform; 321. Guide column; 322. Annular lifting plate; 323. Tension spring; 324. Annular boss; 325. Guide slope; 330. Filter baffle; 400. Feeding assembly; 410. First oil inlet pipe; 420. Second oil inlet pipe; 450. Crude oil tank; 460. Alkali tank. Detailed Implementation

[0015] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0016] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0017] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0018] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0019] Reference Figure 1 A fish oil mixing and filtering device with a spiral heating tube 120 according to a first aspect embodiment of the present invention is characterized in that it comprises: The heating assembly 100 includes a heating barrel 110 with an open bottom and a spiral heating tube 120 surrounding the outer wall of the heating barrel 110; The stirring assembly 200 includes a mixing chamber 210 disposed above the heating tank 110. A hollow oil pipe 220 is connected between the mixing chamber 210 and the heating tank 110. A rotary motor 230 is installed on the upper part of the mixing chamber 210. A rotary shaft 240 is connected to the output end of the rotary motor 230. One end of the rotary shaft 240 is connected to the rotary motor 230, and the other end extends through the hollow oil pipe 220 into the interior of the heating tank 110. A plurality of stirring blades 250 are disposed on the rotary shaft 240. The filter assembly 300 includes a filter barrel 310 disposed at the bottom of the heating barrel 110, a liftable lifting platform 320 installed on the upper part of the filter barrel 310, a filter baffle 330 detachably installed in the middle of the lifting platform 320, and the bottom of the heating barrel 110 is convex and detachably embedded in the lifting platform 320. The feeding assembly 400 includes a first oil inlet pipe 410 and a second oil inlet pipe 420 disposed on the mixing chamber 210. The first oil inlet pipe 410 is connected to a crude oil tank 450, and the second oil inlet pipe 420 is connected to an alkali tank 460 via a water pump.

[0020] According to an embodiment of the present invention, a fish oil mixing and filtration device with a spiral heating tube 120 has at least the following beneficial effects: The fish oil mixing and filtration device with a spiral heating tube 120 provided by the present invention, through the integrated design of the heating component 100, the stirring component 200, the filtration component 300, and the feeding component 400, significantly improves the efficiency and quality of the fish oil mixing and filtration process. Its beneficial effects are mainly reflected in: 1) High-efficiency and uniform heating: The spiral heating tube 120 arranged around the outer wall of the heating tank 110 greatly increases the heat exchange area, enabling the fish oil in the heating tank 110 to heat up quickly and uniformly, effectively solving the problems of low efficiency and uneven temperature of traditional jacket heating or simple coil heating, ensuring the sufficiency and consistency of the mixing reaction (such as decolorization), while avoiding fish oil oxidation caused by local overheating; 2) Integrated mixing and filtration: The mixing chamber 210 is connected to the heating tank 110 via a hollow oil pipe 220. The bottom of the heating tank 110 is directly and detachably embedded in the filter tank 310, which has a lifting platform 320 and a detachable filter baffle 330. This allows mixing and filtration to be completed continuously within the same closed system, completely eliminating the step of transferring fish oil to an independent filter after mixing. This not only significantly shortens the production cycle and improves efficiency, but also significantly reduces the risk of oxidation of fish oil during the transfer process and avoids the problem of increased viscosity caused by temperature drop during transfer. 3) Optimized filtration and maintenance: The convex design at the bottom of the heating tank 110 fits tightly with the lifting platform 320 of the filter tank 310. Combined with the detachable filter baffle 330, the heating tank 110 and the filter tank 310 can be easily separated after the filtration operation is completed. The filter media can be easily removed and replaced / cleaned, solving the problems of difficult cleaning and dead corners in traditional built-in complex heating tubes or separate equipment. Maintenance is simple and efficient. 4) Precise control and flexibility: The first oil inlet pipe 410 and the second oil inlet pipe 420 are respectively connected to the crude oil tank 450 and the alkali tank 460 (or other additives), which facilitates the precise proportioning and initial mixing of fish oil and additives (such as decolorizing agents, alkali deacidification, etc.) in the mixing chamber 210, improving the accuracy of process control. In summary, this utility model effectively integrates mixing, heating, and filtration functions, and has significant advantages such as rapid and uniform heating, low energy consumption, high production efficiency, stable fish oil quality (reduced oxidation), smooth filtration (maintaining suitable temperature and reducing viscosity), simple operation, and easy cleaning and maintenance. It is particularly suitable for the refining process of heat-sensitive, easily oxidized materials such as fish oil, whose viscosity changes greatly with temperature.

[0021] According to some embodiments of this utility model, the spiral heating tube 120 includes an electric heating tube or a hot water tube. The spiral heating tube 120 (which can be either an electric heating tube or a hot water tube) surrounding the outer wall of the heating tank 110 greatly increases the heat exchange area, enabling the fish oil inside the heating tank 110 to heat up quickly and evenly. The electric heating tube solution offers rapid response and precise temperature control, while the hot water tube solution has low operating costs and is energy-efficient and environmentally friendly. Users can flexibly choose the optimal heating method according to specific process requirements and factory conditions, effectively solving the problems of low efficiency and uneven temperature in traditional heating methods, ensuring the sufficiency and consistency of the mixing reaction.

[0022] According to some embodiments of this utility model, the lifting platform 320 includes a guide post 321 disposed on the inner wall of the filter barrel 310, and an annular lifting plate 322 slidably sleeved on the guide post 321. A tension spring 323 connects the annular lifting plate 322 and the filter barrel 310. An annular boss 324 is disposed on the annular lifting plate 322, and a guide slope 325 is disposed on the inner side of the annular boss 324. A concave groove 111 that mates with the annular boss 324 is disposed at the bottom of the heating barrel 110. The heating barrel 110 is embedded in the annular boss 324 through the concave groove 111 and abuts against the annular lifting plate 322. Through the guiding of the guide post 321, the reset of the tension spring 323, and the cooperation design of the annular boss 324 and the concave groove 111, the rapid and accurate positioning and connection of the heating barrel 110 and the lifting platform 320 of the filter barrel 310 are achieved. When the heating tank 110 is lifted, the tension spring 323 automatically pulls the lifting platform 320 (including the filter baffle 330) carrying filter cake back to its high position, greatly simplifying the disassembly process and making filter media replacement and residue cleaning exceptionally convenient and efficient, significantly reducing equipment maintenance downtime. The tight fit between the concave groove 111 at the bottom of the heating tank 110 and the annular boss 324 of the lifting platform 320 provides a good mechanical seal, effectively preventing fish oil leakage. In particular, the guide slope 325 design on the inner side of the annular boss 324 ensures that the fish oil flowing out of the heating tank 110 is smoothly and centrally guided to the central area of ​​the filter baffle 330, completely avoiding liquid accumulation or dead zones at the joint. This not only improves filtration efficiency but also reduces the risk of material residue and cross-contamination, further ensuring fish oil quality and equipment cleanliness.

[0023] According to some embodiments of this utility model, a stirring blade 250 is provided at one end of the rotating shaft 240 located in the mixing chamber 210. By adding the stirring blade 250 within the mixing chamber 210, near the oil inlet of the rotating shaft 240, the crude oil and additives (such as decolorizing agents and alkali solutions) can achieve rapid and thorough preliminary mixing within the mixing chamber 210 before entering the heating tank 110. This effectively prevents the agglomeration and sedimentation of powdered additives or excessively high local concentrations of liquid additives, ensuring that the materials flow into the heating tank 110 in a more uniform state for primary mixing and heating reactions.

[0024] This two-stage design, consisting of "preliminary mixing in the mixing chamber 210 + main mixing in the heating tank 110," works synergistically to significantly shorten the total time required to achieve the target mixing uniformity and improve the homogeneity of the final mixture. This lays a better foundation for subsequent decolorization, deacidification, and other reactions or adsorption processes, and is conducive to improving the efficiency of fish oil refining and the stability of product quality.

[0025] According to some embodiments of this utility model, an oil drain pipe 311 is installed at the bottom of the filter bucket 310, and a regulating valve is provided on the oil drain pipe 311. By adjusting the opening of the regulating valve, the operator can flexibly and precisely control the discharge flow rate of the filtered fish oil. This is crucial in the filtration process: at the beginning of filtration, a stable filter cake layer has not yet formed on the surface of the filter media (filter cloth / filter paper), or the fish oil may contain a lot of fine impurities. At this time, appropriately closing the valve to reduce the flow rate helps to form a uniform and effective filter cake layer, prevents impurities from penetrating, and ensures filtration accuracy. After the filter cake layer has been stably formed, the flow rate can be adjusted to the optimal level according to the viscosity of the fish oil, temperature, filter media permeability, and system pressure to maximize filtration efficiency while ensuring filtration quality. When filtration is nearing completion, the valve is opened wider to accelerate the emptying speed and reduce residue at the bottom of the bucket.

[0026] The embodiments described above with reference to the accompanying drawings have been described in detail. However, the embodiments are not limited to those described above. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the invention.

Claims

1. A fish oil mixing and filtering device with a spiral heating tube, characterized in that, include: The heating assembly (100) includes a heating barrel (110) with an open bottom and a spiral heating tube (120) surrounding the outer wall of the heating barrel (110); The stirring assembly (200) includes a mixing chamber (210) disposed above the heating tank (110), a hollow oil pipe (220) connecting the mixing chamber (210) and the heating tank (110), a rotary motor (230) mounted on the upper part of the mixing chamber (210), a rotating shaft (240) connected to the output end of the rotary motor (230), one end of the rotating shaft (240) connected to the rotary motor (230), and the other end extending through the hollow oil pipe (220) into the interior of the heating tank (110), and a plurality of stirring blades (250) disposed on the rotating shaft (240); The filter assembly (300) includes a filter barrel (310) disposed at the bottom of the heating barrel (110), a liftable lifting platform (320) is installed on the upper part of the filter barrel (310), a filter baffle (330) is detachably installed in the middle of the lifting platform (320), and the bottom of the heating barrel (110) is convex and is detachably embedded in the lifting platform (320). The feeding assembly (400) includes a first oil inlet pipe (410) and a second oil inlet pipe (420) disposed on the mixing chamber (210). The first oil inlet pipe (410) is connected to a crude oil tank (450), and the second oil inlet pipe (420) is connected to an alkali tank (460) via a water pump.

2. The fish oil mixing and filtering device with a spiral heating tube according to claim 1, characterized in that: The spiral heating element (120) includes an electric heating element or a hot water element.

3. The fish oil mixing and filtering device with a spiral heating tube according to claim 1, characterized in that: The lifting platform (320) includes a guide post (321) disposed on the inner wall of the filter barrel (310) and an annular lifting plate (322) slidably sleeved on the guide post (321). A tension spring (323) is connected between the annular lifting plate (322) and the filter barrel (310). An annular boss (324) is provided on the annular lifting plate (322). A guide slope (325) is provided on the inner side of the annular boss (324). A concave groove (111) that cooperates with the annular boss (324) is provided at the bottom of the heating barrel (110). The heating barrel (110) is embedded in the annular boss (324) through the concave groove (111) and abuts against the annular lifting plate (322).

4. The fish oil mixing and filtering device with a spiral heating tube according to claim 1, characterized in that: The rotating shaft (240) is provided with stirring blades (250) at one end of the mixing chamber (210).

5. A fish oil mixing and filtering device with a spiral heating tube according to claim 1, characterized in that: The bottom of the filter barrel (310) is equipped with an oil drain pipe (311), and a regulating valve is provided on the oil drain pipe (311).

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