Vacuum apparatus for reducing anisidine values in processing of vegetable oils
By introducing a rotary acceleration reaction component and a steam jet pump condenser into the vacuum device, the problem of small contact area in traditional devices is solved, achieving efficient removal of oxidation products, improving the efficiency of reducing anisidine value, and meeting the processing requirements of high-quality vegetable oils.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI JIAFENG PLANT OILS
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional vacuum equipment lacks targeted stirring or reaction-accelerating structures in vegetable oil processing, resulting in a small and uneven contact area between vegetable oil and steam or heating environment. Oxidation products are difficult to volatilize quickly, the reaction cycle is long, and the reduction in anisidine value is limited, making it difficult to meet the requirements of high-quality processing.
A vacuum device including a rotary acceleration reaction component was designed. The plant oil is stirred by a rotating vertical rod and a spiral rotating ring driven by a rotary motor, which enhances the contact with steam and the heating environment. Combined with a steam jet pump and a vacuum condenser, the removal of oxidation products is achieved efficiently.
It significantly improves the volatilization rate of oxidation products, enhances the efficiency of reducing anisidine value, ensures the stability of the vacuum environment and the sealing of the equipment, and reduces material waste and environmental pollution.
Smart Images

Figure CN224548359U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vacuum device technology, and in particular to a vacuum device for reducing the anisidine value in vegetable oil processing. Background Technology
[0002] Traditional vacuum equipment refers to a type of equipment used in vegetable oil processing to create a vacuum environment to assist in processes such as deodorization and reduction of anisidine value. These devices typically consist of basic components such as a vacuum tank, a vacuum pump, heating components, and inlet / outlet structures. The core principle is to use a vacuum pump to extract air from the tank, creating a vacuum environment that lowers the boiling point of volatile substances in the vegetable oil. Combined with heating, these substances are then volatilized, thereby achieving the purpose of deodorization and reduction of anisidine value.
[0003] Traditional vacuum devices lack targeted stirring or reaction acceleration structures. Vegetable oils in deodorization devices are mostly in a static or simple flow state, with small and uneven contact areas with steam and heating environment. This makes it difficult for oxidation products in vegetable oils, such as aldehydes and ketones, which affect the anisidine value, to volatilize quickly. The reaction cycle is long, and the final reduction in anisidine value is limited, making it difficult to meet the processing requirements of high-quality vegetable oils.
[0004] Therefore, in order to address the problem that the traditional vacuum devices mentioned above lack targeted stirring or reaction acceleration structures in vegetable oil processing, resulting in small and uneven contact areas between vegetable oil and steam and heating environment, making it difficult for oxidation products to volatilize quickly, long reaction cycles, and limited reduction in anisidine value, which makes it difficult to meet the requirements of high-quality processing, it is necessary to design a vacuum device to reduce the anisidine value in vegetable oil processing. Utility Model Content
[0005] In order to overcome the problems of existing vacuum devices in vegetable oil processing, such as the lack of targeted stirring or reaction acceleration structures, resulting in small and uneven contact area between vegetable oil and steam or heating environment, making it difficult for oxidation products to volatilize quickly, long reaction cycle, and limited reduction in anisidine value.
[0006] The technical solution is as follows: A vacuum device for reducing the anisidine value in vegetable oil processing includes a device support base plate; a support outer frame plate is installed at the upper end of the device support base plate, a vacuum tank is installed inside the support outer frame plate, a rotary acceleration reaction component is installed at the top of the vacuum tank for agitating the vegetable oil in the deodorization device, increasing the contact area between the vegetable oil and steam and the heating environment, accelerating the removal of oxidation products, and reducing the anisidine value; a deodorization device is installed inside the vacuum tank, a heating jacket is installed outside the deodorization device, a steam jet pump is installed at the vacuum outlet of the deodorization device, a vacuum condenser is installed at the outlet of the steam jet pump, a steam distribution device is installed at the bottom of the deodorization device, and the rotary acceleration reaction component includes a sealing cover plate installed at the top of the vacuum tank, a mounting support plate is installed at the upper end of the sealing cover plate, and a rotary motor is installed at the upper end of the mounting support plate.
[0007] Furthermore, a rotating vertical rod is installed at the output end of the rotary motor, and a rotating through hole is opened inside the sealing cover plate. The lower end of the rotating vertical rod extends to the lower end of the sealing cover plate through the rotating through hole.
[0008] Furthermore, a rotating plate is installed at the lower end of the rotating vertical rod, and a rotating upper plate is installed on the outside of the rotating vertical rod. A limit rotating block is installed at the lower end of the rotating upper plate.
[0009] Furthermore, the upper surface of the sealing cover plate is provided with a limiting groove that cooperates with the limiting rotating block, and a servo motor is installed at the upper end of the rotating plate, with an output shaft installed at the output end of the servo motor.
[0010] Furthermore, a movable groove is provided inside the sealing cover for the output shaft to pass through and rotate. The inner diameter of the movable groove is larger than the outer diameter of the output shaft, and a drive wheel is installed at the lower end of the output shaft.
[0011] Furthermore, a belt is connected to the outer side of the driving wheel, and a driven wheel is connected to the outer side of the belt. Both the driving wheel and the driven wheel have linkage rods installed at their lower ends.
[0012] Furthermore, a transverse rotating rod is installed on the outside of the linkage rotating rod, and a spiral rotating ring is installed on the outside of the transverse rotating rod. The spiral rotating ring is used to stir the vegetable oil in the deodorization device, so that the material can fully contact the steam and heating environment, and accelerate the volatilization of oxidation products.
[0013] Furthermore, a discharge pipe is installed at the lower end of the vacuum tank, and multiple sets of equidistantly distributed steam nozzles are installed at the upper end of the steam distribution device. The steam nozzles are connected to the internal cavity of the deodorization device.
[0014] The beneficial effects are as follows: This invention utilizes a rotary acceleration reaction assembly to agitate the vegetable oil within the deodorizing device. By increasing the contact area between the vegetable oil and the steam and heating environment, the removal of oxidation products is accelerated, thereby effectively reducing the anisidine value. The sealing cover ensures the airtightness of the top of the vacuum tank, preventing vacuum leakage and ensuring a stable vacuum environment within the tank. The mounting support plate provides a stable mounting position for the rotary motor, ensuring its stable operation. The rotary motor, as a power source, provides power for the entire rotary acceleration reaction assembly, driving subsequent rotating vertical rods and other components to agitate the vegetable oil. The deodorizing device is the core reaction area for deodorizing and reducing the anisidine value of the vegetable oil, facilitating the volatilization of oxidation products. The steam jet pump, connected to the vacuum outlet of the deodorization unit, effectively extracts gas from the unit, helping to create and maintain a high vacuum, accelerating the volatilization of oxidation products, and improving the efficiency of reducing anisidine value. A vacuum condenser, installed at the steam jet pump outlet, condenses the gas discharged from the pump, recovering useful components while reducing environmental pollution and preventing impurities in the gas from affecting the operation of subsequent equipment. A steam distribution device, installed at the bottom of the deodorization unit, evenly distributes steam into the vegetable oil within, ensuring full contact between the steam and oil, enhancing the carrying and removal of oxidation products, and further reducing anisidine value. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the vacuum device for reducing the anisidine value in vegetable oil processing according to the present invention.
[0016] Figure 2 This is a cross-sectional three-dimensional structural diagram of the vacuum tank body of this utility model;
[0017] Figure 3 This is a three-dimensional structural diagram of the sealing cover plate of this utility model;
[0018] Figure 4 This is a three-dimensional structural diagram of the spiral rotating ring of this utility model.
[0019] In the attached drawings, the following are the reference numerals: 1. Device support base plate; 2. Support outer frame plate; 3. Vacuum tank; 5. Deodorization device; 6. Heating jacket; 7. Steam jet pump; 8. Vacuum condenser; 9. Steam distribution device; 10. Discharge pipe; 401. Sealing cover plate; 402. Mounting support plate; 403. Rotary motor; 404. Rotating vertical rod; 405. Rotating through hole; 406. Rotating plate; 407. Rotating upper plate; 408. Limiting rotating block; 409. Limiting rotating groove; 410. Servo motor; 411. Output shaft; 412. Moving groove; 413. Driving wheel; 414. Belt; 415. Driven wheel; 416. Linkage rotating rod; 417. Horizontal rotating rod; 418. Spiral rotating ring; 901. Steam nozzle. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] Please see Figures 1-4 This utility model provides an embodiment: a vacuum device for reducing the anisidine value in vegetable oil processing, comprising a device support base plate 1; a support outer frame plate 2 is installed on the upper end of the device support base plate 1, a vacuum tank 3 is installed inside the support outer frame plate 2, a rotating acceleration reaction component is installed on the top of the vacuum tank 3 for agitating the vegetable oil in the deodorizing device 5, increasing the contact area between the vegetable oil and steam and the heating environment, accelerating the removal of oxidation products, and reducing the anisidine value; the deodorizing device 5 is installed inside the vacuum tank 3, a heating jacket 6 is installed on the outside of the deodorizing device 5, and a steam jet pump 7 is installed at the vacuum outlet of the deodorizing device 5. A vacuum condenser 8 is installed at the outlet, and a steam distribution device 9 is installed at the bottom of the deodorization device 5. The rotary acceleration reaction assembly includes a sealing cover plate 401 installed on the top of the vacuum tank 3. A mounting support plate 402 is installed on the upper end of the sealing cover plate 401, and a rotary motor 403 is installed on the upper end of the mounting support plate 402. The steam jet pump 7 is the key equipment for obtaining a high vacuum. It uses the negative pressure generated by the high-speed jet of steam to quickly extract the gas in the deodorization device 5. With the vacuum condenser 8 installed at the outlet of the steam jet pump 7, the condensable components in the extracted gas can be condensed and recovered, which reduces material waste and environmental pollution.
[0022] The lower end of the vacuum tank 3 is equipped with a discharge pipe 10, and the upper end of the steam distribution device 9 is equipped with multiple sets of equidistantly distributed steam nozzles 901. The steam nozzles 901 are connected to the internal cavity of the deodorizing device 5, so that the steam can directly contact the vegetable oil. On the one hand, this provides the power for the volatilization of oxidation products, and on the other hand, it can also play a certain role in stirring the vegetable oil, further enhancing the deodorization effect.
[0023] Please see Figures 3-4 In this embodiment, a rotating vertical rod 404 is installed at the output end of the rotary motor 403, and a rotating through hole 405 is provided inside the sealing cover plate 401. The lower end of the rotating vertical rod 404 extends to the lower end of the sealing cover plate 401 through the rotating through hole 405, so that the rotating vertical rod 404 can directly act on the vegetable oil in the deodorizing device 5, preparing for the subsequent stirring work.
[0024] A rotating plate 406 is installed at the lower end of the rotating vertical rod 404, and a rotating upper plate 407 is installed on the outside of the rotating vertical rod 404. A limiting rotating block 408 is installed at the lower end of the rotating upper plate 407. When the rotating vertical rod 404 drives it to rotate, it can generate a strong stirring effect on the vegetable oil at the bottom of the deodorizing device 5, breaking the static state of the vegetable oil and allowing the vegetable oil at the bottom to turn upward and fully contact the steam and heat above. When the rotating upper plate 407 rotates, the limiting rotating block 408 slides in the limiting rotating groove 409, which can not only provide support for the rotating upper plate 407 and prevent it from sinking due to gravity, but also limit the radial displacement of the rotating upper plate 407, ensuring that the rotating upper plate 407 always rotates stably around the axis of the rotating vertical rod 404.
[0025] The upper surface of the sealing cover plate 401 is provided with a limiting rotation groove 409 that cooperates with the limiting rotation block 408. A servo motor 410 is installed on the upper end of the rotating upper plate 407. An output shaft 411 is installed on the output end of the servo motor 410. The output shaft 411 is made of high-strength alloy material, which has good rigidity and wear resistance, ensuring that it will not bend or break when rotating at high speed.
[0026] The sealing cover plate 401 has a through-hole for the output shaft 411 to pass through and rotate. The inner diameter of the through-hole 412 is larger than the outer diameter of the output shaft 411. The lower end of the output shaft 411 is equipped with a drive wheel 413. The drive wheel 413 and the output shaft 411 are fixed by a key connection or interference fit to ensure that the drive wheel 413 can rotate synchronously with the output shaft 411 and that there is no slippage when transmitting power.
[0027] A belt 414 is connected to the outer side of the drive wheel 413, and a driven wheel 415 is connected to the outer side of the belt 414. A linkage rod 416 is installed at the lower end of both the drive wheel 413 and the driven wheel 415. The belt 414 is made of high-strength rubber material, which has good elasticity and wear resistance, and can stably transmit power between the drive wheel 413 and the driven wheel 415.
[0028] A transverse rotating rod 417 is installed on the outer side of the linkage rotating rod 416, and a spiral rotating ring 418 is installed on the outer side of the transverse rotating rod 417. The spiral rotating ring 418 is used to stir the vegetable oil in the deodorization device 5, so that the material can fully contact the steam and heating environment, and accelerate the volatilization of oxidation products. The spiral rotating ring 418 installed on the outer side of the transverse rotating rod 417 is spiral-shaped, and its pitch and diameter have been optimized. When the spiral rotating ring 418 rotates with the transverse rotating rod 417, it can generate axial and radial stirring forces on the vegetable oil in the deodorization device 5, continuously lifting the vegetable oil upward and spreading it in all directions, so that the material can fully contact the steam and heating environment. This stirring method can effectively break the laminar flow state of the vegetable oil, making it easier for oxidation products to separate from the vegetable oil and be carried away by the steam, thereby accelerating the volatilization of oxidation products and significantly improving the efficiency of reducing the anisidine value.
[0029] Step 1: Preparation Phase
[0030] Check whether the device support base plate 1 is placed stably, and ensure that the support outer frame plate 2 is firmly connected to the device support base plate 1 to ensure the stability of the entire device; at the same time, check whether the vacuum tank 3, deodorization device 5 and other components are clean and free of impurities, and whether the discharge pipe 10 is unobstructed.
[0031] Step 2: Feeding Operation
[0032] Add the vegetable oil to be treated into the deodorization device 5 inside the vacuum tank 3. Be careful to control the amount of feed to avoid too much or too little affecting the treatment effect.
[0033] Step 3: Seal Inspection
[0034] Cover the sealing cover 401 installed on the top of the vacuum tank 3 to ensure a good seal between the sealing cover 401 and the vacuum tank 3, and prevent subsequent vacuum environment leakage; check whether there are foreign objects in the rotating through hole 405 and the moving groove 412 inside the sealing cover 401, and ensure that the rotating vertical rod 404 and the output shaft rod 411 can rotate smoothly.
[0035] Step 4: Start heating
[0036] Turn on the heating jacket 6 outside the deodorization device 5 to heat the vegetable oil inside the deodorization device 5, thereby raising the temperature of the vegetable oil and creating conditions for the volatilization of oxidation products.
[0037] Step 5: Steam Preparation
[0038] Turn on the steam supply of the steam distribution device 9, and the steam enters the deodorization device 5 through multiple sets of equally spaced steam nozzles 901 at the upper end of the steam distribution device 9, and comes into contact with the vegetable oil.
[0039] Step Six: Start the Vacuum System
[0040] Start the steam jet pump 7 at the vacuum outlet of the deodorization device 5. The steam jet pump 7 starts working and extracts the gas in the deodorization device 5. At the same time, the vacuum condenser 8 at the outlet of the steam jet pump 7 starts to operate and condenses the discharged gas, gradually forming and maintaining a certain vacuum in the deodorization device 5 and the vacuum tank 3.
[0041] Step 7: Start the rotational acceleration reaction assembly
[0042] The rotary motor 403 installed on the upper end of the mounting support plate 402 is started. The output end of the rotary motor 403 drives the rotating vertical rod 404 to rotate. The rotating vertical rod 404 extends to the lower end of the sealing cover plate 401 through the rotating through hole 405 inside the sealing cover plate 401, thereby driving the rotating plate 406 at the lower end of the rotating vertical rod 404 to rotate, thus agitating the vegetable oil in the deodorizing device 5.
[0043] The rotating upper plate 407 on the outside of the rotating vertical rod 404 rotates with the rotating vertical rod 404. The limiting rotating block 408 at the lower end of the rotating upper plate 407 rotates in the limiting rotating groove 409 opened on the upper surface of the sealing cover plate 401 to ensure the stability of the rotation of the rotating upper plate 407.
[0044] Start the servo motor 410 at the top of the rotating upper plate 407. The output end of the servo motor 410 drives the output shaft 411 to rotate. The output shaft 411 rotates in the moving groove 412 that is opened through the sealing cover plate 401.
[0045] The drive wheel 413 at the lower end of the output shaft 411 rotates with the output shaft 411. The drive wheel 413 drives the driven wheel 415 to rotate through the belt 414 connected to the outer side. The linkage rod 416 at the lower end of the drive wheel 413 and the driven wheel 415 rotates accordingly.
[0046] The horizontal rotating rod 417 outside the linkage rotating rod 416 rotates, which in turn drives the spiral rotating ring 418 outside the horizontal rotating rod 417 to rotate. The spiral rotating ring 418 stirs the vegetable oil in the deodorization device 5, so that the material is in full contact with the steam and heating environment, and accelerates the volatilization of oxidation products.
[0047] Step 8: Monitoring the reaction process
[0048] During the operation of the device, closely monitor parameters such as the heating temperature of the heating jacket 6, the vacuum level maintained by the steam jet pump 7 and the vacuum condenser 8, and the steam supply of the steam distribution device 9 to ensure that all parameters are within a suitable range and that the oxidation products can be effectively volatilized.
[0049] Step 9: Reaction complete
[0050] Once the anisidine value of the vegetable oil in the deodorizing device 5 has decreased to the required level, the servo motor 410 and the rotary motor 403 are turned off in sequence to stop the operation of the rotation acceleration reaction component; the heating jacket 6 is turned off to stop heating; the steam supply of the steam distribution device 9 is turned off to stop steam input; and the steam jet pump 7 and the vacuum condenser 8 are turned off to gradually release the vacuum state in the vacuum tank 3 and the deodorizing device 5.
[0051] Step 10: Discharge
[0052] After the pressure inside the vacuum tank 3 and the deodorization device 5 returns to normal pressure, the discharge pipe 10 at the lower end of the vacuum tank 3 is opened, and the processed vegetable oil is discharged through the discharge pipe 10, completing the entire processing process.
[0053] Step 11: Cleaning and Maintenance
[0054] After processing, clean each component and check whether rotating parts such as rotating vertical rod 404 and linkage rotating rod 416 are flexible, whether belt 414 is loose or worn, and whether limit rotating block 408 and limit rotating groove 409 are worn. Perform maintenance and replacement in a timely manner to ensure that the device can be used normally next time.
Claims
1. A vacuum device for reducing the anisidine value in vegetable oil processing, characterized in that, The device includes a support base plate (1); a support outer frame plate (2) is installed on the upper end of the support base plate (1), and a vacuum tank (3) is installed inside the support outer frame plate (2). A rotating acceleration reaction component for stirring the vegetable oil in the deodorizing device (5) is installed on the top of the vacuum tank (3) to increase the contact area between the vegetable oil and the steam and heating environment, accelerate the removal of oxidation products, and reduce the anisidine value. The deodorizing device (5) is installed inside the vacuum tank (3), and a rotating acceleration reaction component for stirring the vegetable oil in the deodorizing device (5) is installed on the outside of the deodorizing device (5). The device is equipped with a heating jacket (6), a steam jet pump (7) is installed at the vacuum outlet of the deodorization device (5), a vacuum condenser (8) is installed at the outlet of the steam jet pump (7), a steam distribution device (9) is installed at the bottom of the deodorization device (5), and the rotary acceleration reaction assembly includes a sealing cover plate (401) installed on the top of the vacuum tank (3), a mounting support plate (402) is installed on the upper end of the sealing cover plate (401), and a rotary motor (403) is installed on the upper end of the mounting support plate (402).
2. The vacuum device for reducing the anisidine value in vegetable oil processing according to claim 1, characterized in that, A rotating vertical rod (404) is installed at the output end of the rotary motor (403), and a rotating through hole (405) is opened inside the sealing cover plate (401). The lower end of the rotating vertical rod (404) extends to the lower end of the sealing cover plate (401) through the rotating through hole (405).
3. The vacuum device for reducing the anisidine value in vegetable oil processing according to claim 2, characterized in that, A rotating plate (406) is installed at the lower end of the rotating vertical rod (404), a rotating upper plate (407) is installed on the outside of the rotating vertical rod (404), and a limit rotating block (408) is installed at the lower end of the rotating upper plate (407).
4. The vacuum device for reducing the anisidine value in vegetable oil processing according to claim 3, characterized in that, The upper surface of the sealing cover (401) is provided with a limiting rotating groove (409) that cooperates with the limiting rotating block (408). A servo motor (410) is installed on the upper end of the rotating upper plate (407), and an output shaft (411) is installed on the output end of the servo motor (410).
5. A vacuum device for reducing the anisidine value in vegetable oil processing according to claim 4, characterized in that, The sealing cover (401) has a through-hole for the output shaft (411) to pass through and rotate. The inner diameter of the through-hole (412) is larger than the outer diameter of the output shaft (411). The lower end of the output shaft (411) is equipped with a drive wheel (413).
6. The vacuum device for reducing the anisidine value in vegetable oil processing according to claim 5, characterized in that, A belt (414) is connected to the outside of the drive wheel (413), and a driven wheel (415) is connected to the outside of the belt (414). A linkage rod (416) is installed at the lower end of both the drive wheel (413) and the driven wheel (415).
7. A vacuum device for reducing the anisidine value in vegetable oil processing according to claim 6, characterized in that, A transverse rotating rod (417) is installed on the outside of the linkage rotating rod (416), and a spiral rotating ring (418) is installed on the outside of the transverse rotating rod (417). The spiral rotating ring (418) is used to stir the vegetable oil in the deodorizing device (5).
8. The vacuum device for reducing the anisidine value in vegetable oil processing according to claim 1, characterized in that, The lower end of the vacuum tank (3) is equipped with a discharge pipe (10), and the upper end of the steam distribution device (9) is equipped with multiple sets of equally spaced steam nozzles (901). The steam nozzles (901) are connected to the internal cavity of the deodorization device (5).