Rapeseed oil decolorizing device

Abstract

The invention relates to the technical field of rapeseed oil processing, in particular to a rapeseed oil decoloring device which comprises a frame, a tank penetrates through and is embedded in the top end of the frame, a supporting frame is installed on the edge of the other side of the top end of the frame, a reciprocating air cylinder is embedded in the top end of the supporting frame, and a lifting disc is fixedly connected to the output end of the reciprocating air cylinder. A plurality of lifting rods are fixedly connected to the bottom ends of the lifting discs, circular rings are fixedly connected to the bottom ends of the lifting rods, spiral rods arranged in a spiral line shape are fixedly connected to the inner ends of the circular rings, expansion air bags are embedded in the upper ends of the interiors of the spiral rods, and air guide pipes are embedded in the top ends of the expansion air bags; the output end of the first pump body is connected with the air guide pipe, the top end of the collecting tank is provided with a second pump body, the output end of the second pump body is fixedly connected with a liquid guide pipe, the device can accurately descend to the rapeseed oil liquid level through the spiral spiral rod with the conical section design in cooperation with lifting adjustment driven by a reciprocating air cylinder, and uniform adsorption and efficient cleaning of liquid level foam are achieved.

Description

Technical Field

[0001] This invention relates to the field of rapeseed oil processing technology, specifically to a rapeseed oil decolorization device. Background Technology

[0002] Rapeseed oil decolorization refers to a refining process that removes pigments (such as carotenoids and chlorophyll), colloids, trace impurities, and off-flavors from rapeseed oil through physical adsorption and filtration. The core principle is to improve the color and purity of the oil while preserving its nutritional components. It is widely used in the edible oil processing industry, suitable for both large-scale production and small-scale refining, and can produce clear, bright refined rapeseed oil that meets food hygiene standards, satisfying the quality requirements of catering, food processing, and industrial oils. The main process is as follows: pretreatment (impurity removal and dehydration) → heating and temperature adjustment → adsorbent addition and stirring reaction → separation of oil residue after decolorization → collection of refined oil. Temperature and reaction time must be controlled throughout the process to ensure decolorization effectiveness and oil quality. In the decolorization and storage process of rapeseed oil processing, traditional equipment has two major pain points: First, foam is easily generated on the surface of the oil after decolorization. Existing treatment methods mostly rely on adding defoamers or manual cleaning, which not only easily causes chemical pollution of the oil, but also has the problems of uneven cleaning and low efficiency, affecting the natural quality of the oil. Secondly, after the oil is left to stand, impurities settle at the bottom. When the oil is extracted, the impurities are easily mixed in due to agitation. Traditional filtration devices have insufficient filtration accuracy and are prone to clogging, requiring additional filtration processes. This not only extends the production cycle but also increases energy consumption and maintenance costs, making it difficult to meet the high-efficiency and clean requirements of food-grade oil processing. Therefore, it is necessary to propose a rapeseed oil decolorization device. Summary of the Invention

[0003] To address the problems in the prior art, the present invention provides a rapeseed oil decolorization device.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a rapeseed oil decolorization device, including a frame, a tank is embedded through the top of the frame, and a collection tank is installed at one edge of the top of the frame; A support frame is installed on the other side edge of the top of the frame. A reciprocating cylinder is embedded in the top of the support frame. A lifting plate is fixedly connected to the output end of the reciprocating cylinder. Several lifting rods are fixedly connected to the bottom of the lifting plate. A ring is fixedly connected to the bottom of each lifting rod. A spiral rod is fixedly connected to the inner end of each ring. An expansion airbag is embedded in the upper end of the spiral rod. A gas guide pipe is embedded in the top of the expansion airbag. A pump body one is installed at the top edge of the lifting plate. The output end of the pump body one is connected to the gas guide pipe. A pump body two is installed at the top of the collection tank. A liquid guide pipe is fixedly connected to the output end of the pump body two.

[0005] Specifically, the tank body is detachable, and the tank body is connected to the connection ports by flange bolts. A liquid inlet pipe is embedded on one side of the top of the tank body, a discharge pipe is embedded at the bottom of the tank body, and a liquid outlet pipe is embedded on the lower conical outer wall of the tank body.

[0006] Specifically, the top of the tank is fitted with several sliding sealing sleeves, and several lifting rods are slidably engaged in the sliding sealing sleeves.

[0007] Specifically, a heating jacket is fitted onto the outer wall of the tank, and a temperature controller is electrically connected to the outer end of the heating jacket.

[0008] Specifically, a drain pipe with a valve is embedded at the lower end of the outer wall of the collection tank.

[0009] Specifically, both the gas guide tube and the liquid guide tube pass through the ring and the lifting rod and extend to the upper end of the lifting plate.

[0010] Specifically, the cross-section of each of the rotating rods is conical, and each of the expansion airbags is fixedly connected to a sealing ring within the groove of the rotating rod. Both the expansion airbags and the sealing rings are made of either nitrile rubber or fluororubber.

[0011] The first beneficial effect of this invention is that the device, through a spiral rotating rod with a conical cross-section and a reciprocating cylinder-driven lifting adjustment, can precisely descend to the surface of the rapeseed oil, achieving uniform adsorption and efficient cleaning of surface foam. Compared to traditional foam treatment methods, this structure eliminates the need for additional defoamers, avoiding chemical contamination of the oil. Simultaneously, the spiral layout expands the foam contact area, improving cleaning efficiency. Combined with the sealing protection of the sliding sealing sleeve and the neat pipeline design, it ensures no oil leakage or secondary contamination during foam cleaning, effectively protecting the natural quality and edible safety of the rapeseed oil, and meeting the stringent requirements of food-grade oil processing. The second beneficial effect of this invention is that the device utilizes a linkage structure between the expansion airbag and the pump body. After inflation, it can quickly form a dense filter-like barrier layer. Combined with the reciprocating cylinder, it precisely positions itself to the top of the settled impurities, effectively preventing the mixing of impurities from the bottom during oil extraction. The sealing ring enhances the airbag's sealing performance, and the oil- and corrosion-resistant material extends its service life, avoiding the problems of easy clogging and frequent replacement of traditional filter devices. This design achieves simultaneous impurity blocking and oil extraction, eliminating the need for additional filtration procedures. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the structure of a rapeseed oil decolorization device provided by the present invention; Figure 2This is a schematic cross-sectional view of the rapeseed oil decolorization device provided by the present invention. Figure 3 A schematic diagram showing the disassembled structure of a rapeseed oil decolorization device provided by the present invention; Figure 4 This invention provides a rapeseed oil decolorization device. Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 A schematic diagram of the lifting plate structure of a rapeseed oil decolorization device provided by the present invention; Figure 6 A schematic diagram of the axial cross-sectional planar structure of the rotating rod of the rapeseed oil decolorization device provided by the present invention; Figure 7 This is a side view of the rotating rod structure of a rapeseed oil decolorization device provided by the present invention.

[0014] In the diagram: 1. Frame; 2. Tank body; 3. Collection tank; 11. Support frame; 12. Reciprocating cylinder; 13. Lifting plate; 14. Lifting rod; 15. Ring; 16. Rotating rod; 17. Expansion airbag; 18. Air guide pipe; 19. Pump body one; 31. Pump body two; 32. Liquid guide pipe; 21. Liquid inlet pipe; 22. Discharge pipe; 23. Liquid outlet pipe; 210. Sliding sealing sleeve; 20. Heating jacket; 34. Drain pipe; 160. Sealing ring. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0016] like Figures 1-7 As shown, the present invention provides the following technical solution: Example 1: A rapeseed oil decolorization device includes a frame 1, a tank 2 is embedded through the top of the frame 1, a collection tank 3 is installed on one side edge of the top of the frame 1, the tank 2 is detachable, and the tank 2 is connected to the connection port by flange bolts, an inlet pipe 21 is embedded on one side of the top of the tank 2, a discharge pipe 22 is embedded at the bottom of the tank 2, a discharge pipe 23 is embedded on the lower conical outer wall of the tank 2, a heating jacket 20 is sleeved on the outer wall of the tank 2, and a temperature controller is electrically connected to the outer end of the heating jacket 20.

[0017] The heating jacket 20 includes a jacket body fitted on the outer wall of the tank 2, a built-in heating element, and a temperature controller electrically connected to the heating element, which can accurately adjust and maintain the temperature required for storing rapeseed oil in the tank.

[0018] In use, decolorized rapeseed oil is injected through the inlet pipe 21 at the top of tank 2. The heating jacket 20, in conjunction with a temperature controller, adjusts the oil temperature to a suitable decolorization temperature for storage. After a period of settling, impurities settle. After settling, a large amount of impurities will settle to the conical area at the bottom of tank 2. At this point, the outlet pipe 23 on the lower conical outer wall of tank 2 is opened to discharge the clarified refined rapeseed oil from the upper layer to the next process pipeline. After the oil has been discharged, the sedimented impurities at the bottom are discharged through the outlet pipe 22 at the bottom of tank 2. Tank 2 features a detachable design with flange bolt connections, facilitating subsequent disassembly and cleaning and ensuring equipment cleanliness.

[0019] Example 2: The technical solution of this example, which differs from Example 1, includes: a support frame 11 is installed on the other side edge of the top of the frame 1; a reciprocating cylinder 12 is embedded at the top of the support frame 11; a lifting plate 13 is fixedly connected to the output end of the reciprocating cylinder 12; several lifting rods 14 are fixedly connected to the bottom of the lifting plate 13; a ring 15 is fixedly connected to the bottom of each lifting rod 14; a spiral rod 16 is fixedly connected to the inner end of each ring 15; an expansion airbag 17 is embedded in the upper end of the spiral rod 16; an air guide tube 18 is embedded at the top of the expansion airbag 17; and a pump body 19 is installed at the top edge of the lifting plate 13, and the pump body 19 outputs... The outlet is connected to the air guide pipe 18. The top of the collection tank 3 is equipped with a pump body 31. The output end of the pump body 31 is fixedly connected to the liquid guide pipe 32. The top of the tank body 2 is equipped with several sliding sealing sleeves 210, and several lifting rods 14 are respectively slidably engaged in the sliding sealing sleeves 210. The air guide pipe 18 and the liquid guide pipe 32 pass through the ring 15 and the lifting rods 14 and extend to the upper end of the lifting plate 13. The cross-section of the rotating rod 16 is set in a conical shape. The expansion airbag 17 is fixedly connected to the groove of the rotating rod 16 with a sealing ring 160. The expansion airbag 17 and the sealing ring 160 are both made of either nitrile rubber or fluororubber.

[0020] Among them, the reciprocating cylinder 12 is connected to an external power source via a controller; The sliding sealing sleeve 210 and the lifting rod 14 are slidably engaged, which not only provides guidance for the up and down reciprocating movement of the lifting rod 14 to ensure smooth movement, but also seals the through hole at the top of the tank 2 to prevent rapeseed oil from leaking during stirring and extraction. The air guide tube 18 and the liquid guide tube 32 pass through the ring 15 and the lifting rod 14 and extend to the upper end of the lifting plate 13 to achieve a neat arrangement of the pipeline and avoid the pipeline from getting tangled and affecting the movement of the lifting rod 14. The tapered design of the spiral rod 16 facilitates the uniform adsorption of foam on the liquid surface; the sealing ring 160 enhances the sealing between the expansion bladder 17 and the groove of the spiral rod 16, preventing air leakage after inflation; the nitrile rubber or fluororubber material is oil- and corrosion-resistant, suitable for rapeseed oil contact scenarios, extending the service life of the expansion bladder 17 and the sealing ring 160, ensuring the stable formation of the filter mesh structure, and when there is too much foam liquid in the collection tank 3, the drain pipe 34 will be opened to drain it.

[0021] In use, first follow the procedure in Example 1, allowing the liquid to stand until impurities settle and foam appears on the surface. Start the reciprocating cylinder 12 on the support frame 11, adjust the height of the lifting plate 13, and lower the spiral rod 16, driven by the ring 15, to the liquid surface. The conical spiral rod 16 evenly absorbs the foam on the liquid surface, completing the foam removal. When the oil needs to be transported to the next process, connect the outlet pipe 23 to the pipeline of the next process, and start the cylinder again to drive the spiral rod 16 down to the top of the settled impurities. Then start the pump body 19, inflating the expansion bladder 17 through the air guide pipe 18, causing it to expand and form a dense filter structure with the sealing ring 160, blocking impurities at the bottom. Finally, start the extraction pump on the outlet pipe 23 to smoothly extract the upper refined oil, effectively preventing settled impurities from being stirred and mixed into the oil, ensuring the purity of the feed to the next process.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rapeseed oil decolorization device, comprising a frame (1), wherein a tank (2) is embedded through the top of the frame (1), and a collection tank (3) is installed at one edge of the top of the frame (1). Its features are, A support frame (11) is installed on the other side edge of the top of the frame (1). A reciprocating cylinder (12) is embedded at the top of the support frame (11). A lifting plate (13) is fixedly connected to the output end of the reciprocating cylinder (12). Several lifting rods (14) are fixedly connected to the bottom of the lifting plate (13). A ring (15) is fixedly connected to the bottom of the lifting rod (14). A spiral rod (16) is fixedly connected to the inner end of the ring (15). An expansion airbag (17) is embedded in the upper end of the spiral rod (16). A gas guide pipe (18) is embedded at the top of the expansion airbag (17). A pump body one (19) is installed at the top edge of the lifting plate (13). The output end of the pump body one (19) is connected to the gas guide pipe (18). A pump body two (31) is installed at the top of the collection tank (3). A liquid guide pipe (32) is fixedly connected to the output end of the pump body two (31).

2. The rapeseed oil decolorization device according to claim 1, characterized in that: The tank (2) is detachable, and the tank (2) is connected to the connection port by flange bolts. The top side of the tank (2) is provided with an inlet pipe (21), the bottom end of the tank (2) is provided with a discharge pipe (22), and the lower conical outer wall of the tank (2) is provided with a discharge pipe (23).

3. The rapeseed oil decolorization device according to claim 1, characterized in that: The top of the tank (2) is provided with several sliding sealing sleeves (210), and several lifting rods (14) are respectively slidably engaged in the sliding sealing sleeves (210).

4. The rapeseed oil decolorization device according to claim 1, characterized in that: The outer wall of the tank (2) is fitted with a heating jacket (20), and the outer end of the heating jacket (20) is electrically connected to a temperature controller.

5. The rapeseed oil decolorization device according to claim 1, characterized in that: The lower end of the outer wall of the collection tank (3) is fitted with a drain pipe (34) with a valve.

6. The rapeseed oil decolorization device according to claim 1, characterized in that: The air guide tube (18) and the liquid guide tube (32) both pass through the ring (15) and the lifting rod (14) and extend to the upper end of the lifting plate (13).

7. The rapeseed oil decolorization device according to claim 1, characterized in that: The cross-section of the spiral rod (16) is conical, and the expansion airbag (17) is fixedly connected to the groove of the spiral rod (16) with a sealing ring (160). The expansion airbag (17) and the sealing ring (160) are both made of either nitrile rubber or fluororubber.

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