A mechanism for cleaning the inner wall of a fish oil decolorizing device
By designing an inner wall cleaning mechanism in the fish oil decolorization device, the scraper is driven to rotate synchronously with the inner wall of the decolorization tank by an equilateral spindle and is rinsed by high-pressure water flow. This solves the problem of difficult-to-clean residue from the brush roots, achieving thorough cleaning of the inner wall of the decolorization tank and improving the quality of the fish oil.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI XINZHOU MARINE BIOLOGICAL PROD CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-21
AI Technical Summary
In existing fish oil decolorization devices, it is difficult to completely clean the residue at the base of the brush, which affects the decolorization effect in the next cycle.
An internal wall cleaning mechanism was designed, comprising an equilateral spindle, a retaining ring, a cross arm, a scraping arm, a scraper, and a nozzle. The equilateral spindle drives the scraper to rotate synchronously with the inner wall of the decolorization tank, and high-pressure water flow is used to rinse away the residue, ensuring that the residue is completely removed.
It achieves thorough cleaning of the inner wall of the decolorization tank, avoids residue residue, improves the decolorization effect, extends the service life of the equipment, and enhances the quality of fish oil.
Smart Images

Figure CN224530880U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fish oil production technology, and in particular to an inner wall cleaning mechanism for a refined fish oil decolorization device. Background Technology
[0002] To improve the color and quality of fish oil, it is necessary to decolorize it during the production and processing. This involves placing a decolorizing agent in a decolorizing tank and stirring at a constant temperature to ensure full contact between the fish oil and the decolorizing agent, allowing the agent to adsorb pigments and impurities from the fish oil. However, after a single decolorization cycle, existing fish oil decolorizing tanks often leave some impurities and decolorizing agent residue on the inner wall, affecting the effectiveness of subsequent decolorization cycles.
[0003] To address the aforementioned technical problems, existing patent 202323146510.3 discloses a fish oil decolorizing device that is easy to clean. This device uses a rotating main shaft to drive a high-pressure nozzle to rotate synchronously, thus thoroughly rinsing the inner wall of the mixing drum. Combined with a brush mounted on the stirring rod near the inner wall of the mixing drum, the inner wall remains clean, preventing any impact on the decolorization effect in subsequent cycles. In the aforementioned prior art, because the brush is used to remove loosened residue from the high-pressure water flow, residue can easily adhere to the base of the brush and be difficult to clean, thus affecting the decolorization effect in subsequent cycles. Utility Model Content
[0004] In view of this, the purpose of this utility model is to propose an inner wall cleaning mechanism for a refined fish oil decolorization device, so as to solve the problem that some residues that are difficult to clean are left at the base of the brush, which affects the decolorization effect of the next fish oil.
[0005] Based on the above objectives, this utility model provides an inner wall cleaning mechanism for a refined fish oil decolorization device, including an equilateral main shaft coaxially rotatably disposed inside the decolorization tank and a drive unit disposed at the bottom of the decolorization tank for driving the equilateral main shaft to rotate.
[0006] A conveying cavity coaxially located at the bottom of an equilateral spindle;
[0007] Two cleaning mechanisms are detachably mounted on an equilateral spindle, each comprising two retaining rings radially sleeved at the top and bottom ends of the equilateral spindle.
[0008] The horizontal support arm is fixed to one of the retaining rings;
[0009] The scraping arm is fixed between another retaining ring and the cross arm;
[0010] The scraper is fixed to the outside of the scraping arm, with one side of it contacting the inner wall of the decolorizing tank.
[0011] Several nozzles are arranged side by side on the outside of the scraping arm, with their water outlets facing the part where the scraper blade contacts the inner wall of the decolorizing tank;
[0012] The delivery pipe is located between the horizontal support arm and the scraping arm, and it is connected in series with several nozzles.
[0013] Water pipe fittings used to connect the delivery pipe and the delivery chamber.
[0014] Preferably, the bottom of the conveying chamber is provided with a rotary joint, which is used to connect to an external water source.
[0015] Preferably, the top and bottom ends of the equilateral spindle are both cylindrical, and the cross-sectional shape between the top and bottom ends of the equilateral spindle is an equilateral polygon.
[0016] Preferably, the shape and size of the inner part of the retaining ring match the shape and size of the outer circumferential half of the equilateral spindle, and the retaining ring is located between the top and bottom ends of the equilateral spindle.
[0017] Preferably, the top of the conveying cavity is close to the horizontal support arm, and the top of the inside of the conveying cavity is connected to the water pipe joint.
[0018] Preferably, the shape of the scraping arm matches the edge shape of the vertical cross-section of the decolorizing tank, and the scraping arm is located below the horizontal support arm.
[0019] Preferably, the angle between the scraper and the inner wall of the decolorization tank is greater than ° and less than °, and the scraper is an elastic metal sheet.
[0020] Preferably, one section of the delivery pipe is located on the side of the scraping arm away from the scraper, and the other section of the delivery pipe is located at the bottom of the cross arm.
[0021] The beneficial effects of this utility model are:
[0022] This invention connects an external pipe to the bottom of an equilateral spindle via a rotary joint. A detachable cleaning mechanism is then installed on the equilateral spindle and connected to the cleaning fluid flow path. This allows for the complete removal of residue from the arc-shaped inner wall and bottom of the decolorizing tank. Simultaneously, water flows over the area where the scraper contacts the inner wall of the decolorizing tank, flushing away all scraped residue and mixing it with the cleaning fluid. Finally, the wastewater is drained and the cleaning mechanism is removed, improving the internal cleaning effect of the decolorizing tank and preventing residue residue from affecting the next fish oil decolorization process. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a three-dimensional illustration of the present invention. Figure 1 ;
[0025] Figure 2 This is a three-dimensional illustration of the present invention. Figure 2 ;
[0026] Figure 3 This is a three-dimensional illustration of the present invention. Figure 3 ;
[0027] Figure 4 This is a three-dimensional illustration of the present invention. Figure 4 ;
[0028] Figure 5 This is a three-dimensional illustration of the present invention. Figure 5 .
[0029] The diagram is marked as follows:
[0030] 1. Equilateral spindle; 2. Cleaning mechanism; 21. Horizontal support arm; 22. Snap ring; 23. Scraper arm; 24. Conveying pipe; 25. Scraper blade; 26. Nozzle; 27. Water pipe connector; 3. Conveying chamber; 4. Top support. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.
[0032] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0033] like Figures 1 to 4As shown, an inner wall cleaning mechanism for a refined fish oil decolorization device includes an equilateral main shaft 1 coaxially rotatably disposed inside a decolorization tank and a drive unit disposed at the bottom of the decolorization tank for driving the equilateral main shaft 1 to rotate. The top and bottom ends of the equilateral main shaft 1 are both cylindrical, and the cross-sectional shape between the top and bottom ends of the equilateral main shaft 1 is an equilateral polygon. A top support 4 is horizontally fixed at the top inside the decolorization tank. The top end of the equilateral main shaft 1 is rotatably disposed at the midpoint of the top support 4. The bottom end of the equilateral main shaft 1 passes downward through the bottom of the decolorization tank, and a sealing ring is provided at the overlapping part of the bottom end of the equilateral main shaft 1 and the bottom of the decolorization tank. The drive unit includes a drive motor fixed to the bottom of the decolorization tank and two spur gears fixed to the output end of the drive motor and the bottom end of the equilateral main shaft 1, respectively. The teeth of the two spur gears mesh to facilitate the drive motor driving the equilateral main shaft 1 to rotate. A stirring rod is provided on the equilateral main shaft 1 for stirring the fish oil during decolorization.
[0034] The conveying chamber 3 is coaxially located at the bottom of the equilateral main shaft 1. The bottom of the conveying chamber 3 is equipped with a rotary joint. The rotary joint is used to connect to an external water source. The external water source includes a liquid storage container and a water pump located in the liquid storage container. A water delivery pipe is connected between the output end of the water pump and the rotary joint.
[0035] Two cleaning mechanisms 2 are detachably mounted on the equilateral spindle 1, each including two retaining rings 22 radially sleeved on the top and bottom ends of the equilateral spindle 1. The shape and size of the inside of the retaining rings 22 match the shape and size of the circumferential half of the outside of the equilateral spindle 1, and the retaining rings 22 are located between the top and bottom ends of the equilateral spindle 1.
[0036] The horizontal support arm 21 is fixed to one of the retaining rings 22.
[0037] The scraping arm 23 is fixed between another retaining ring 22 and the horizontal support arm 21. The shape of the scraping arm 23 matches the edge shape of the vertical section of the decolorizing tank, and the scraping arm 23 is located below the horizontal support arm 21. In this way, the mutual limiting effect between the retaining ring 22 and the outer wall of the equilateral main shaft 1, and the lateral support of the horizontal support arm 21 and the scraping arm 23 on the retaining ring 22, jointly constrain the circumferential degree of freedom of the retaining ring 22, and prevent the horizontal support arm 21 and the scraping arm 23 from rotating synchronously and stably when the drive unit drives the equilateral main shaft 1 to rotate.
[0038] The scraper 25 is fixed to the outside of the scraping arm 23, with one side of it abutting against the inner wall of the decolorizing tank. The included angle between the scraper 25 and the inner wall of the decolorizing tank is greater than 0° and less than 90°. The scraper 25 is an elastic metal sheet. This allows the scraper 25 to always maintain close contact with the inner wall of the decolorizing tank when the equilateral spindle 1 drives the scraping arm 23 and the scraper 25 to rotate synchronously and stably. This makes it easy for the scraper 25 to thoroughly scrape up the residue attached to the arc-shaped inner wall and bottom of the decolorizing tank.
[0039] Several nozzles 26 are arranged side by side on the outside of the scraping arm 23, with their water outlets facing the part where the scraper 25 contacts the inner wall of the decolorizing tank. This allows the high-pressure water jet from the nozzles 26 to promptly wash away the residue scraped up by the scraper 25, improving the cleaning effect on the inner wall of the decolorizing tank and preventing residue from remaining on the scraper 25 and the inner wall of the decolorizing tank. Furthermore, after the scraping arm 23 is disassembled, there is no need to clean the scraper, reducing the amount of cleaning work.
[0040] The delivery pipe 24 is located between the horizontal support arm 21 and the scraping arm 23, and is connected in series with several nozzles 26. One section of the delivery pipe 24 is located on the scraping arm 23 on the side away from the scraper 25, and the other section of the delivery pipe 24 is located at the bottom of the horizontal support arm 21.
[0041] Water pipe connector 27 connects the delivery pipe 24 and the delivery chamber 3. The top of the delivery chamber 3 is close to the horizontal support arm 21, and the top of the interior of the delivery chamber 3 is connected to the water pipe connector 27. The water pump can deliver the cleaning liquid in the storage container into the delivery pipe 24 through the rotary joint, the delivery chamber 3, and the water pipe connector 27. Finally, the cleaning liquid is sprayed out from several nozzles 26 and directly sprayed onto the contact area between the scraper 25 and the inner wall of the decolorizing tank. In this way, the scraper 25 can clean the arc-shaped inner wall and bottom of the decolorizing tank. The attached residue is scraped off and washed away with high-pressure water to prevent residue from adhering to the scraper 25. After the residue on the inner wall is scraped and cleaned, the wastewater in the decolorization tank is extracted using a water suction machine, which completes the cleaning of the inner wall of the decolorization tank. Finally, the retaining ring 22 on the horizontal support arm 21 is separated from the equilateral main shaft 1 and the horizontal support arm 21 is pulled up. Then, it is removed together with the scraping arm 23 to prevent residue from remaining on the inner wall of the decolorization tank and the scraper 25, which would affect the decolorization effect of the next fish oil.
[0042] Working principle: First, align the horizontal support arm 21 radially with the water pipe connector 27. Then, insert the retaining ring 22 at the end of the scraping arm 23 into the decolorizing tank, and radially sleeve the retaining ring 22 onto the bottom end of the equilateral main shaft 1. Next, insert the horizontal support arm 21 into the decolorizing tank and adjust the horizontal support arm 21 to a radially horizontal state. At this time, the retaining ring 22 at one end of the horizontal support arm 21 is radially sleeved onto the top end of the equilateral main shaft 1. Then, connect the water pipe connector 27 to one end of the delivery pipe 24. Start the drive unit and water pump. The drive unit drives the equilateral main shaft 1 to rotate and drives the horizontal support arm 21, scraping arm 23, scraper blade 25, nozzle 26, and delivery pipe 24 through the retaining ring 22. The delivery pipe 24 rotates synchronously and stably. During this process, the scraper 25 scrapes up and removes the residue from the arc-shaped inner wall and bottom of the decolorization tank. At the same time, the high-pressure water jet from the nozzle 26 washes the scraped residue off the scraper 25, so that the residue mixes with the cleaning liquid. This makes it easier to use a water pump to suck up the sewage in the decolorization tank later. Finally, the water pipe connector 27 is disassembled from the delivery pipe 24, and the horizontal support arm 21, scraper arm 23 and two retaining rings 22 are removed. This prevents the scraper 25 from remaining in the decolorization tank and aggravating wear due to long-term friction during stirring, which would affect its service life. It also prevents impurities caused by wear from affecting the quality of the fish oil.
[0043] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0044] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An inner wall cleaning mechanism for a refined fish oil decolorization device, comprising an equilateral main shaft (1) coaxially rotatably disposed within a decolorization tank and a drive unit disposed at the bottom of the decolorization tank for driving the equilateral main shaft (1) to rotate, characterized in that: The conveying cavity (3) is coaxially located at the bottom of the equilateral spindle (1); Two cleaning mechanisms (2) are detachably mounted on the equilateral spindle (1), each comprising two retaining rings (22) radially sleeved on the top and bottom ends of the equilateral spindle (1). The horizontal support arm (21) is fixed to one of the retaining rings (22); The scraping arm (23) is fixed between another retaining ring (22) and the cross arm (21); The scraper (25) is fixed to the outside of the scraping arm (23), with one side of it abutting against the inner wall of the decolorizing tank; Several nozzles (26) are arranged side by side outside the scraping arm (23), with their water outlets facing the part where the scraper (25) contacts the inner wall of the decolorizing tank; The delivery pipe (24) is located between the horizontal support arm (21) and the scraping arm (23), and is connected in series with several nozzles (26). Water pipe fitting (27) for connecting the delivery pipe (24) and the delivery chamber (3).
2. The inner wall cleaning mechanism of the refined fish oil decolorization device according to claim 1, characterized in that, The bottom of the conveying chamber (3) is provided with a rotary joint, which is used to connect to an external water source.
3. The inner wall cleaning mechanism of the refined fish oil decolorization device according to claim 1, characterized in that, The top and bottom of the equilateral main shaft (1) are both cylindrical, and the cross-sectional shape between the top and bottom of the equilateral main shaft (1) is an equilateral polygon.
4. The inner wall cleaning mechanism of the refined fish oil decolorization device according to claim 3, characterized in that, The shape and size of the inner part of the retaining ring (22) match the shape and size of the outer circumferential half of the equilateral spindle (1), and the retaining ring (22) is located between the top and bottom ends of the equilateral spindle (1).
5. The inner wall cleaning mechanism of the refined fish oil decolorization device according to claim 1, characterized in that, The top of the delivery chamber (3) is close to the horizontal support arm (21), and the top of the inside of the delivery chamber (3) is connected to the water pipe connector (27).
6. The inner wall cleaning mechanism of the refined fish oil decolorization device according to claim 1, characterized in that, The shape of the scraping arm (23) matches the edge shape of the vertical section of the decolorizing tank, and the scraping arm (23) is located below the horizontal support arm (21).
7. The inner wall cleaning mechanism of the refined fish oil decolorization device according to claim 1, characterized in that, The angle between the scraper (25) and the inner wall of the decolorization tank is greater than 0° and less than 90°, and the scraper (25) is an elastic metal sheet.
8. The inner wall cleaning mechanism of the refined fish oil decolorization device according to claim 1, characterized in that, One section of the delivery pipe (24) is located on the side of the scraping arm (23) away from the scraper (25), and the other section of the delivery pipe (24) is located at the bottom of the cross arm (21).
Citation Information
Patent Citations
Fish oil decoloring device convenient to clean
CN221854517U