A low-temperature extraction device for wheat germ oil

By pre-treating wheat germ and designing a device for easy filter replacement, the problems of poor extraction effect and filter clogging are solved, achieving efficient and pure oil extraction.

CN224450609UActive Publication Date: 2026-07-03SHANDONG FU SHIKANG BIOTECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG FU SHIKANG BIOTECHNOLOGY CO LTD
Filing Date
2025-07-15
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing low-temperature extraction equipment for wheat germ oil does not pre-treat the raw materials, resulting in poor extraction effect and easy clogging of the filter screen, which affects extraction efficiency and increases maintenance costs.

Method used

The stirring rod and blades grind wheat germ into powder to enhance extraction efficiency, and the filter screen can be easily replaced through a pin, spring and buckle structure to prevent clogging.

Benefits of technology

It significantly improves oil extraction efficiency, ensures oil purity, reduces equipment failures, extends equipment life, and increases production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of oil extraction and discloses a low-temperature extraction device for wheat germ oil. The device includes a base plate, a support fixedly connected to the top of the base plate, an annular support fixedly connected to the top of the support, an extraction chamber fixedly connected to the inner side of the annular support, a protective shell fixedly connected to the top center of the extraction chamber, a motor fixedly connected inside the protective shell, a connecting rod fixedly connected to the output end of the motor, a connecting rod fixedly connected to the bottom center of the connecting rod, multiple blades fixedly connected to the outer side of the connecting rod, stirring rods fixedly connected to the left and right sides of the bottom of the connecting rod, and a funnel fixedly connected to the bottom of the extraction chamber. In this utility model, the structure uses a combination of blades and stirring rods for stirring, combined with funnel-guided filtration, to achieve efficient mixing and separation of materials. Simultaneously, the annular support provides stable support, improving the stability and efficiency of the extraction operation.
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Description

Technical Field

[0001] This utility model relates to the field of oil extraction, and in particular to a low-temperature extraction device for wheat germ oil. Background Technology

[0002] Currently, low-temperature extraction equipment for wheat germ oil is widely used in the field of oil extraction. Through extraction technology under low-temperature conditions, it effectively preserves the nutrients in wheat germ oil and avoids the damage to oil quality caused by high temperatures. This technology plays an important role in oil production in the food and health product industries, becoming a key means to ensure the high-quality production of wheat germ oil.

[0003] The main structure of existing low-temperature extraction equipment for wheat germ oil mainly includes an extraction vessel, a refrigeration system, a solvent delivery system, and a filtration and separation system. The extraction vessel, as the core component, provides the reaction space for the extraction process; the refrigeration system maintains a low-temperature environment to ensure that extraction takes place at a suitable temperature; the solvent delivery system is responsible for transporting the extraction solvent to the extraction vessel; and the filtration and separation system is used to separate the extracted oil phase from the residue.

[0004] However, such devices still have significant problems. First, traditional extraction directly processes wheat germ without pretreatment, resulting in suboptimal extraction and waste of raw materials. Second, during the long filtration process, the filter screen accumulates a large amount of impurities, leading to blockage, reduced extraction efficiency, increased equipment maintenance costs, and impact on production progress. To address these issues, a low-temperature extraction device for wheat germ oil is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a low-temperature extraction device for wheat germ oil, which aims to improve the existing technology. Traditional extraction lacks fine pretreatment of wheat germ raw materials, making it difficult for the extraction solvent to play its full role, resulting in low oil extraction rate, resource waste and reduced economic benefits. The filter screen of the filtration and separation system is easily blocked by impurities after long-term operation, which reduces the extraction efficiency, increases maintenance costs and interferes with the production process.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A low-temperature extraction device for wheat germ oil includes a base plate, a support fixedly connected to the top of the base plate, an annular support fixedly connected to the top of the support, an extraction tank fixedly connected to the inner side of the annular support, a protective shell fixedly connected to the top center of the extraction tank, a motor fixedly connected inside the protective shell, a connecting rod fixedly connected to the output end of the motor, a connecting rod fixedly connected to the bottom center of the connecting rod, multiple blades fixedly connected to the outer side of the connecting rod, stirring rods fixedly connected to the left and right sides of the bottom of the connecting rod, a funnel fixedly connected to the bottom of the extraction tank, a filter box fixedly connected to the bottom of the funnel, a valve three fixedly connected to the bottom of the filter box, and an oil collection tank provided at the bottom of the valve three.

[0008] As a further description of the above technical solution:

[0009] The filter box is equipped with a filter screen. The filter screen is fixedly connected to two buckles at both ends of its front side. The filter box is fixedly connected to two ends of its front side with a pin housing. A pin is slidably connected inside the pin housing. A spring is sleeved on the outside of the pin. A baffle plate is fixedly connected to the bottom end of the spring.

[0010] As a further description of the above technical solution:

[0011] The inner wall of the oil collection tank is fixedly connected with an electric heating wire;

[0012] As a further description of the above technical solution:

[0013] A compression tank is fixedly connected to the top of the base plate, an infusion pipe is fixedly connected to the left side of the compression tank, a valve four is sleeved on the outside of the infusion pipe, and the infusion pipe is fixedly connected to the right side of the extraction tank.

[0014] As a further description of the above technical solution:

[0015] The bottom plate is fixedly connected to the top of the exhaust gas box, the exhaust gas box is fixedly connected to the top of the exhaust gas pipe, the exhaust gas pipe is fitted with a second valve, and the exhaust gas pipe is fixedly connected to the top of the oil collection tank.

[0016] As a further description of the above technical solution:

[0017] The top of the extraction tank is fixedly connected to a feed inlet, and the bottom of the feed inlet is fixedly connected to a valve.

[0018] As a further description of the above technical solution:

[0019] The baffle plate is slidably connected to the inner wall of the pin housing, and the baffle plate is fixedly connected to the outer wall of the pin.

[0020] As a further description of the above technical solution:

[0021] A partition is fixedly connected to the bottom of the pin housing, and the pin passes through and slides inside the partition.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the stirring rod and blades driven by the motor are used to grind the wheat germ into powder, which greatly increases the contact area between the wheat germ and the solvent and significantly improves the oil extraction efficiency. The filter screen filters the extracted oil, which can effectively intercept residues and other impurities, ensuring that the oil flowing into the oil collection tank has high purity.

[0024] 2. In this utility model, the filter screen structure of the device, with the help of the cooperation of pins, springs and buckles, allows the filter screen to be quickly disassembled without tools, thereby cleaning the clogged filter screen in time, effectively avoiding equipment failure caused by the accumulation of impurities, extending the service life of the device, and ensuring uninterrupted wheat germ oil extraction by quickly replacing the filter screen, thus improving production efficiency. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a low-temperature extraction device for wheat germ oil proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of the extraction chamber of a low-temperature extraction device for wheat germ oil proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the internal structure of the pin housing of a low-temperature extraction device for wheat germ oil proposed in this utility model.

[0028] Figure 4 This is a schematic diagram of the internal structure of the oil receiving tank of a low-temperature extraction device for wheat germ oil proposed in this utility model.

[0029] Figure 5 This is a schematic diagram of the internal structure of the filter box of a low-temperature extraction device for wheat germ oil proposed in this utility model.

[0030] Legend:

[0031] 1. Base plate; 2. Waste gas box; 3. Gas guide pipe; 4. Compression tank; 5. Infusion pipe; 6. Protective shell; 7. Feed inlet; 8. Valve 1; 9. Extraction box; 10. Annular support; 11. Funnel; 12. Support; 13. Valve 2; 14. Oil collection tank; 15. Stirring rod; 16. Connecting rod; 17. Motor; 18. Connecting rod; 19. Blade; 20. Filter box; 21. Valve 3; 22. Pin; 23. Pin shell; 24. Partition; 25. Buckle; 26. Baffle plate; 27. Spring; 28. Filter screen; 29. ​​Heating wire; 30. Valve 4. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 , Figure 2 and Figure 5 This utility model provides an embodiment of a low-temperature extraction device for wheat germ oil, comprising a base plate 1, a support 12 fixedly connected to the top of the base plate 1, an annular support 10 fixedly connected to the top of the support 12, an extraction chamber 9 fixedly connected to the inner side of the annular support 10, a protective shell 6 fixedly connected to the top center of the extraction chamber 9, a motor 17 fixedly connected inside the protective shell 6, a connecting rod 16 fixedly connected to the output end of the motor 17, a connecting rod 18 fixedly connected to the bottom center of the connecting rod 16, multiple blades 19 fixedly connected to the outer side of the connecting rod 18, stirring rods 15 fixedly connected to the left and right sides of the bottom of the connecting rod 16, and a funnel 11 fixedly connected to the bottom of the extraction chamber 9. The device is fixedly connected to a filter box 20, and a valve 21 is fixedly connected to the bottom of the filter box 20. An oil collection tank 14 is set at the bottom of the valve 21. Before processing wheat germ, the device needs to pre-treat it. The extraction box 9 has a refrigeration system. The motor 17 drives the connecting rod 16 to rotate, which drives the stirring rod 15 and the blade 19 to rotate, so as to grind the wheat germ into powder, thereby enhancing the extraction rate of wheat germ oil. After grinding, the powder will enter the funnel 11 and begin extraction under the action of liquefied solvent. The oil obtained after extraction is released by opening the valve 21 and falling onto the filter screen 28 and then into the oil collection tank 14. At the same time, the filter screen 28 will filter the oil.

[0034] Reference Figures 2-5 The filter box 20 contains a filter screen 28. Both ends of the front side of the filter screen 28 are fixedly connected to buckles 25. Both ends of the front side of the filter box 20 are fixedly connected to pin housings 23. A pin 22 is slidably connected inside the pin housings 23. A spring 27 is sleeved on the outside of the pin 22. A baffle plate 26 is fixedly connected to the bottom of the spring 27. Long-term filtration of oil will cause the filter screen 28 to become clogged, thus affecting the subsequent filtration work and the extraction efficiency of wheat germ oil. When the filter screen 28 needs to be replaced, pull the pin 22. The baffle plate 26 fixedly connected to it will compress the spring 27 upward, and the pin 22 will disengage from the buckles 25. At this time, the filter screen 28 can be pulled out for replacement and cleaning. Then, put the replaced filter screen 28 back into the filter box 20, release the pin 22, and the compressed spring 27 will, under the force, lock the pin 22 back into the buckles 25, and fix the filter screen 28.

[0035] Reference Figure 1 , Figure 2 and Figure 4 The inner wall of the oil collection tank 14 is fixedly connected with an electric heating wire 29. The oil in the oil collection tank 14 also contains liquefied solvent, so the electric heating wire 29 is needed to heat the oil collection tank 14 to re-vaporize the liquefied solvent and collect it into the waste gas box 2.

[0036] Reference Figure 1 A compression tank 4 is fixedly connected to the top of the base plate 1. A delivery pipe 5 is fixedly connected to the left side of the compression tank 4. A valve 30 is sleeved on the outside of the delivery pipe 5. The delivery pipe 5 is fixedly connected to the right side of the extraction tank 9. The compression tank 4 compresses the gas into a liquefied solvent and delivers it to the extraction tank 9 for wheat germ oil extraction. This structure controls the entry and exit of the liquefied solvent through the valve 30, and then delivers it into the extraction tank 9 through the delivery pipe 5.

[0037] Reference Figure 1 The top of the base plate 1 is fixedly connected to the exhaust gas box 2, and the top of the exhaust gas box 2 is fixedly connected to the gas guide pipe 3. The outer side of the gas guide pipe 3 is fitted with valve 2 13. The gas guide pipe 3 is fixedly connected to the top of the oil collection tank 14. The wheat germ oil in the oil collection tank 14 still contains liquefied solvent, so the heating wire 29 is needed to heat the oil collection tank 14 to re-vaporize the liquefied solvent and transport it into the exhaust gas box 2 through the gas guide pipe 3. The transportation process is controlled by valve 2 13.

[0038] Reference Figure 1 and Figure 2 The top of the extraction box 9 is fixedly connected to the feed inlet 7, and the bottom of the feed inlet 7 is fixedly connected to the valve 8. The device controls the entry and exit of wheat germ through the valve 8. The wheat germ is put into the feed inlet 7 and the valve 8 is opened to allow it to enter the extraction box 9.

[0039] Reference Figure 2 and Figure 3 The blocking plate 26 is slidably connected to the inner wall of the pin housing 23 and fixedly connected to the outer wall of the pin 22. The blocking plate 26 is connected to the pin 22. When the pin 22 is pulled, the blocking plate 26 is moved, and the spring 27 is compressed at the same time, causing it to disengage from the groove of the buckle 25.

[0040] Reference Figure 2 and Figure 3 A partition 24 is fixedly connected to the bottom of the pin housing 23. The pin 22 passes through and slides inside the partition 24. The partition 24 protects the internal structure of the pin housing 23. Pulling the pin 22 causes it to disengage from the groove of the buckle 25.

[0041] Working principle: After the wheat germ enters the device, the motor 17 starts, driving the connecting rod 16 to rotate. The stirring rod 15 and blades 19 connected to it rotate accordingly, grinding the wheat germ into powder, increasing the contact area between the oil and the solvent, and improving the extraction rate. After grinding, the powder enters the extraction zone through the funnel 11. At the same time, valve 30 is opened, and liquefied n-butane is transported into the extraction tank 9 through the infusion pipe 5 to mix with the powder. Afterwards, valve 21 is opened, and the mixed liquid flows to filter screen 28. Filter screen 28 intercepts residues, and the grease passes through and falls into oil collection tank 14, completing the entire process from wheat germ to oil extraction. However, the grease in oil collection tank 14 is still a mixture of grease and liquefied n-butane, which needs to be separated. At this time, heating wire 29 heats oil collection tank 14. Because n-butane is easily vaporized when heated, the vaporized n-butane is drawn into waste gas tank 2 through gas pipe 3. After the gas extraction is completed, valve 13 is closed, and pure grease is obtained. Filter screen 28 is prone to clogging with long-term use, affecting efficiency. When replacing it, simply pull the pin 22, which drives the baffle plate 26 to compress the spring 27, causing the pin 22 to disengage from the clip 25, allowing the filter screen 28 to be removed for cleaning or replacement. After the new filter screen 28 is placed in the filter box 20, the pin 22 is released, the spring 27 returns to its original position, and the pin 22 is re-clamped into the clip 25, ensuring the filter screen 28 is securely fixed and the device operates continuously and stably.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A low-temperature extraction device for wheat germ oil, comprising a base plate (1), characterized in that: The bottom plate (1) is fixedly connected to the top of the bracket (12), the bracket (12) is fixedly connected to the top of the ring bracket (10), the ring bracket (10) is fixedly connected to the inner side of the extraction box (9), the extraction box (9) is fixedly connected to the middle of the top of the protective shell (6), the protective shell (6) is fixedly connected to the inside of the motor (17), the output end of the motor (17) is fixedly connected to the connecting rod (16), the bottom middle of the connecting rod (16) is fixedly connected to the connecting rod (18), the connecting rod (18) is fixedly connected to the outer side of the connecting rod (18) and the left and right sides of the bottom of the connecting rod (16) are fixedly connected to the stirring rod (15), the bottom of the extraction box (9) is fixedly connected to the funnel (11), the bottom of the funnel (11) is fixedly connected to the filter box (20), the bottom of the filter box (20) is fixedly connected to the valve three (21), and the bottom of the valve three (21) is provided with an oil collection tank (14).

2. A wheat germ oil low temperature extraction apparatus as claimed in claim 1, wherein: The filter box (20) is equipped with a filter screen (28). Both ends of the front side of the filter screen (28) are fixedly connected with buckles (25). Both ends of the front side of the filter box (20) are fixedly connected with pin housings (23). A pin (22) is slidably connected inside the pin housing (23). A spring (27) is sleeved on the outside of the pin (22). A baffle plate (26) is fixedly connected to the bottom end of the spring (27).

3. The wheat germ oil low temperature extraction device according to claim 1, characterized in that: The inner wall of the oil collection tank (14) is fixedly connected with an electric heating wire (29).

4. The wheat germ oil low temperature extraction apparatus of claim 1, wherein: A compression tank (4) is fixedly connected to the top of the base plate (1), and an infusion pipe (5) is fixedly connected to the left side of the compression tank (4). A valve four (30) is sleeved on the outside of the infusion pipe (5), and the infusion pipe (5) is fixedly connected to the right side of the extraction tank (9).

5. The wheat germ oil low temperature extraction apparatus of claim 1, wherein: The bottom plate (1) is fixedly connected to the top of the exhaust gas box (2), the exhaust gas box (2) is fixedly connected to the top of the exhaust gas box (2), the exhaust gas pipe (3) is fitted with a valve (13) on the outside of the exhaust gas pipe (3), and the exhaust gas pipe (3) is fixedly connected to the top of the oil receiving tank (14).

6. A wheat germ oil low temperature extraction apparatus as claimed in claim 1, wherein: The top of the extraction box (9) is fixedly connected to a feed inlet (7), and the bottom of the feed inlet (7) is fixedly connected to a valve (8).

7. A wheat germ oil low temperature extraction apparatus as claimed in claim 2, wherein: The baffle plate (26) is slidably connected to the inner wall of the pin housing (23), and the baffle plate (26) is fixedly connected to the outer wall of the pin (22).

8. The low-temperature extraction apparatus for wheat germ oil according to claim 2, characterized in that: The bottom of the pin housing (23) is fixedly connected to a partition plate (24), and the pin (22) passes through and is slidably connected inside the partition plate (24).