Filtered oil recovery device for rice crust processing
By introducing a limiting mechanism that allows the scraper to move in contact with the inner wall of the drum in the rice crust processing oil filtration and recovery device, the problems of easy breakage and difficult cleaning of rice crust after oil removal are solved, achieving efficient and stable rice crust removal and equipment cleaning, and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI HARI FOOD TECH CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-19
AI Technical Summary
In the current rice crust processing process, the rice crust is easily broken after degreasing, which affects the product quality and appearance. Manual operation is inefficient, and the equipment is difficult to thoroughly clean the rice crust residue on the inner wall of the drum, resulting in product contamination and unstable equipment operation.
Design a rice crust processing oil filtration and recovery device, including a centrifuge, a protective cover, a servo motor, a rotating drum, a scraper, and a limiting mechanism. The scraper moves in close contact with the inner wall of the rotating drum to accurately fix and scrape the rice crust, avoiding squeezing and damage, and achieves orderly accumulation and centralized collection during the unloading process.
This effectively prevents the rice crust from breaking during the removal process, improves unloading efficiency, keeps the drum clean, prevents product contamination, ensures a smooth production process, and reduces production costs.
Smart Images

Figure CN224253086U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rice crust processing technology, and in particular to a rice crust processing oil filtration and recovery device. Background Technology
[0002] Oil filtration and recovery devices for rice crust processing play a crucial role in the food processing industry. Through technologies such as oil removal and filtration, they effectively separate and recycle the oil used in the frying process, reducing production costs, resource waste, and environmental pollution. They are widely used in rice crust production enterprises. In practical applications, oil filtration and recovery devices for rice crust processing typically require the following structure:
[0003] 1. The degreasing drum is the core component for separating the rice crust from the grease. It generates centrifugal force through high-speed rotation to fling the grease off the surface of the rice crust.
[0004] 2. The oil collection device is used to collect the oil separated from the degreasing drum for subsequent filtration and recovery;
[0005] 3. The filtration system purifies the collected grease, removing impurities and residues to improve the quality and reusability of the grease.
[0006] 4. The control system is responsible for monitoring and regulating the entire oil filtration and recovery process to ensure stable equipment operation and guarantee the oil removal and filtration effect.
[0007] Currently, manufacturers have adopted various equipment and methods to achieve efficient oil removal and effective oil recovery for rice crackers. Some manufacturers use three-legged centrifugal oil removers, which remove oil from rice crackers through centrifugal force. Other manufacturers use fried rice cracker oil filtration and recycling devices, which use filtration and shaking mechanisms to remove oil and filter residue. Some manufacturers use oil-water separation fryers, which remove oil and purify grease based on the principle of different oil and water specific gravities.
[0008] However, the above-mentioned implementation methods still have the following problems. In the process of removing the rice crust after degreasing, most of them are handled manually or by simple unloading. This method makes the rice crust easily broken after degreasing, affecting the product quality and appearance. Moreover, manual operation is inefficient and increases production costs. Although some equipment is equipped with unloading devices, it is difficult to completely clean the rice crust on the inner wall of the drum. The residual rice crust will not only contaminate the next batch of products, but also affect the normal operation of the equipment and the degreasing effect. In view of this problem, this application proposes a solution: designing a rice crust processing oil filtration and recovery device with a limit mechanism that can be fixed at any time when the scraper moves. This device can accurately fix the scraper in a position that is convenient for rice crust to be removed, avoiding the rice crust from being squeezed and damaged during the removal process, while improving the unloading efficiency and ensuring the smoothness of the production process. Utility Model Content
[0009] To address the shortcomings of existing technologies, this utility model provides a rice crust processing oil filtration and recovery device. This solves the problem that in the process of removing rice crusts after oil removal, most methods rely on manual grabbing or simple unloading. These methods make the rice crusts prone to breakage after oil removal, affecting product quality and appearance. Furthermore, manual operation is inefficient and increases production costs. Although some equipment is equipped with unloading devices, it is difficult to completely clean the rice crusts from the inner wall of the drum. Residual rice crusts not only contaminate the next batch of products but also affect the normal operation of the equipment and the oil removal effect.
[0010] To achieve the above objectives, this utility model provides the following technical solution:
[0011] A rice crust processing oil filtration and recovery device includes a centrifuge and a protective cover. A servo motor is fixedly installed on the lower surface of the centrifuge. An oil outlet is provided on the left side of the centrifuge. A drum is rotatably connected inside the centrifuge. A fixed rod is fixedly connected inside the drum. A scraper is provided inside the drum. A connecting sleeve is fixedly connected to the upper surface of the scraper. A groove is formed in the inner wall of the connecting sleeve. A limit block is movably engaged in the groove. A return spring is fixedly connected to the right surface of the limit block. Two retaining strips are fixedly connected to the inner wall of the connecting sleeve. Both retaining strips are movably connected to the fixed rod.
[0012] Preferably, the reset spring is fixedly connected to the groove, a connecting rod is fixedly connected to the right surface of the limiting block, the connecting rod is movably sleeved with the reset spring, and a push block is fixedly connected to the upper surface of the connecting rod.
[0013] Preferably, the connecting sleeve has two handles fixedly connected to its annular side, the fixing rod has a set of slots on its annular side, and each set of slots is movably engaged with the limiting block. The connecting sleeve has a positioning rod fixedly connected to its annular side, and the positioning rod is movably engaged with the connecting rod.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] 1. After the degreasing process is complete, remove the protective cover. Then, by holding the two handles, move the fixed connecting sleeve together. The movement of the connecting sleeve will move the fixed scraper. The scraper will fit against the inner wall of the drum. As it moves, it will remove the rice crust attached to the inner wall of the drum. The scraper can scrape off as much rice crust as possible, reducing the residue in the drum. This helps to keep the inside of the drum clean and prevents the residue from contaminating or affecting the next degreasing process.
[0016] 2. When there is too much rice crust, as the scraper moves upward, it releases the push block when it reaches a position where the rice crust can be easily removed. The spring force of the return spring drives the limit block to reset, so that the connecting sleeve is in a limited and fixed state relative to the fixed rod. When the scraper rises to a certain position and is fixed, the scraped rice crust can form a relatively concentrated and orderly accumulation on the scraper, preventing the rice crust from scattering randomly inside the drum or blocking the drum outlet. This is beneficial for subsequent cleaning and collection work and ensures the smooth operation of the production process. Attached Figure Description
[0017] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0018] Figure 1 This is an overall structural diagram of the present invention;
[0019] Figure 2 This is a structural diagram of the rotating drum of this utility model;
[0020] Figure 3 This is a structural diagram of the scraper of this utility model;
[0021] Figure 4 This is a structural diagram of the connecting sleeve of this utility model.
[0022] Legend: 1. Centrifuge; 2. Protective cover; 3. Servo motor; 4. Oil outlet; 5. Drum; 6. Fixing rod; 7. Connecting sleeve; 8. Scraper; 9. Handle; 10. Locking bar; 11. Locking slot; 12. Push block; 13. Connecting rod; 14. Return spring; 15. Limiting block; 16. Positioning rod. Detailed Implementation
[0023] This application provides a rice crust processing oil filtration and recovery device, which effectively solves the problem that most rice crust removal processes after oil removal rely on manual grabbing or simple unloading methods. These methods make the rice crust easily breakable after oil removal, affecting product quality and appearance. Furthermore, manual operation is inefficient and increases production costs. Although some equipment is equipped with unloading devices, it is difficult to completely clean the rice crust on the inner wall of the drum. Residual rice crust not only contaminates the next batch of products but also affects the normal operation of the equipment and the oil removal effect. This application designs a rice crust processing oil filtration and recovery device with a limit mechanism that can be fixed at any time when the scraper moves. This device can accurately fix the scraper in a position that is convenient for rice crust removal, avoiding squeezing and damage to the rice crust during the removal process, while improving unloading efficiency and ensuring a smooth production process.
[0024] Example
[0025] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this application embodiment effectively solves the problem of the removal process after the rice crust has been degreased. Most methods involve manual grabbing or simple unloading, which makes the rice crust easily breakable, affecting product quality and appearance. Furthermore, manual operation is inefficient and increases production costs. Although some equipment is equipped with unloading devices, it is difficult to completely clean the rice crust from the inner wall of the drum. Residual rice crust not only contaminates the next batch of products but also affects the normal operation of the equipment and the degreasing effect. The overall approach is as follows:
[0026] To address the problems existing in the prior art, this utility model provides a rice crust processing oil filtration and recovery device, including a centrifuge 1 and a protective cover 2. A servo motor 3 is fixedly installed on the lower surface of the centrifuge 1. An oil outlet 4 is provided on the left side of the centrifuge 1. A drum 5 is rotatably connected inside the centrifuge 1. A fixing rod 6 is fixedly connected inside the drum 5. A scraper 8 is provided inside the drum 5. A connecting sleeve 7 is fixedly connected to the upper surface of the scraper 8. A groove is opened on the inner wall of the connecting sleeve 7. A limit block 15 is movably engaged in the groove. A return spring 14 is fixedly connected to the right surface of the limit block 15. Two retaining strips 10 are fixedly connected to the inner wall of the connecting sleeve 7. Both retaining strips 10 are movably connected to the fixing rod 6. During use, the fried rice crusts are evenly placed into the drum 5 inside the centrifuge 1. The drum 5 has many small holes around its perimeter and an oil drain hole at the bottom. By starting the servo motor 3, the oil can be discharged. The motor 3 drives the drum 5 to rotate. Under the centrifugal force generated by the high-speed rotation, the rice crust and oil are subjected to different forces. Since the oil is less dense than the rice crust, the oil is thrown to the outside of the drum 5, flows down its inner wall, and finally flows out through the oil outlet 4 into a special oil collection device. After the degreasing is completed, the protective cover 2 is removed. At this time, by holding the two handles 9, the fixed connecting sleeve 7 is moved together. The movement of the connecting sleeve 7 will drive the fixed scraper 8 to move. The scraper 8 is in contact with the inner wall of the drum 5. As it moves, it will remove the rice crust attached to the inner wall of the drum 5. The scraper 8 can scrape off as much rice crust as possible, reducing the residue of rice crust in the drum 5. This helps to keep the inside of the drum 5 clean and avoids the residue of rice crust from contaminating or affecting the next degreasing operation.
[0027] The reset spring 14 is fixedly connected to the groove. A connecting rod 13 is fixedly connected to the right surface of the limiting block 15. The connecting rod 13 is movably sleeved with the reset spring 14. A push block 12 is fixedly connected to the upper surface of the connecting rod 13. Two handles 9 are fixedly connected to the annular side of the connecting sleeve 7. A set of slots 11 is opened on the annular side of the fixing rod 6. All slots 11 are movably engaged with the limiting block 15. A positioning rod 16 is fixedly connected to the annular side of the connecting sleeve 7. The positioning rod 16 is movably sleeved with the connecting rod 13. When there is too much rice crust, the scraper 8 cannot be removed all at once when it moves upward. Before removal, the push block 12 needs to be pulled to move the fixed connecting rod 13 together. The positioning rod 16 ensures the stability of the movement of the connecting rod 13. 3. During the movement, the fixed limiting block 15 will move together, compressing the return spring 14. At this time, the limiting block 15 will disengage from the slot 11 on the fixed rod 6 and open the limit. When there is too much rice crust, as the scraper 8 moves upward, when it moves to a position where the rice crust can be easily removed, the push block 12 is released. The elastic force of the return spring 14 drives the limiting block 15 to reset, so that the connecting sleeve 7 is in a limited and fixed state relative to the fixed rod 6. When the scraper 8 rises to a certain position and is fixed, the scraped rice crust can form a relatively concentrated and orderly accumulation on the scraper 8, avoiding the rice crust from falling randomly in the drum 5 or blocking the outlet of the drum 5. This is conducive to subsequent cleaning and collection work and ensures the smooth operation of the production process.
[0028] Centrifuge 1 is the core part of the whole device. It is used to house the drum 5 and separate the rice crust from the oil through rotation. It works with other components to complete the oil filtration and recovery, providing a basic environment for rice crust degreasing and oil collection.
[0029] The protective cover 2 mainly serves a protective function, preventing foreign objects from entering when the centrifuge 1 is working, ensuring the safe operation of the equipment. It can be removed after the oil removal is completed, making it easier to operate the scraper 8 to remove the rice crust.
[0030] Servo motor 3 provides power for the operation of centrifuge 1, driving drum 5 to rotate at high speed, so that rice crust and oil are separated under centrifugal force, and is the power source for realizing the oil removal operation;
[0031] Oil outlet 4 is used to discharge the grease separated from the drum 5. The separated oil flows down the inner wall of the drum 5 and enters the oil collection device through oil outlet 4 to realize grease recovery.
[0032] The rotating drum 5 is a key component for removing oil from rice crusts. It rotates inside the centrifuge 1, and its peripheral holes and bottom oil drain holes work together with centrifugal force to separate the oil from the rice crusts, while providing working space for the scraper plate 8 to scrape the rice crusts.
[0033] The fixing rod 6 is used to fix and support the connecting sleeve 7. By cooperating with the locking strip 10, the locking groove 11 and the limiting block 15, it restricts the movement of the connecting sleeve 7 and the scraper 8, ensuring the stability of the unloading process.
[0034] The connecting sleeve 7 connects the scraper 8 and the handle 9. When moving, it drives the scraper 8. At the same time, its internal structure cooperates with the parts on the fixing rod 6 to adjust and fix the position of the scraper 8, making it easy to remove the rice crust.
[0035] The scraper 8 fits against the inner wall of the drum 5. After the oil removal is completed, the scraper 8 can be moved to scrape off the rice crust attached to the inner wall of the drum 5, reducing rice crust residue, facilitating unloading and keeping the drum 5 clean.
[0036] The handle 9 is easy for operators to hold, and by holding the handle 9, the connecting sleeve 7 and scraper 8 can be moved, which facilitates manual operation, improves unloading efficiency, and makes the process of removing rice crust more convenient.
[0037] The clip 10 is installed on the inner wall of the connecting sleeve 7 and is movably connected to the fixing rod 6. It guides the connecting sleeve 7 to move along the fixing rod 6, ensuring the stability of the scraper 8 and preventing it from shaking or shifting.
[0038] The slot 11 is opened on the annular side of the fixing rod 6 and is movably engaged with the limiting block 15. It is used to limit the position of the connecting sleeve 7 and the scraper 8 and to fix the scraper 8 when it moves to the appropriate position, so that the rice crust can be easily removed.
[0039] The push block 12 is for manual operation. Pulling the push block 12 can drive the connecting rod 13 and the limit block 15 to move, release the limit block 15 from the slot 11, and make it easy to adjust the position of the scraper 8 to adapt to different unloading requirements.
[0040] The connecting rod 13 connects the push block 12 and the limiting block 15. Under the action of the push block 12, it drives the limiting block 15 to move. At the same time, it cooperates with the positioning rod 16 to ensure the stability of the movement process and ensure the accurate movement of the limiting block 15.
[0041] When the limit block 15 moves, the reset spring 14 is compressed. After the push block 12 is released, the spring force is used to reset the limit block 15 and re-engage it with the slot 11 to fix the position of the scraper 8 and ensure stable unloading.
[0042] The limiting block 15 engages with the slot 11, restricting the movement of the connecting sleeve 7 and the scraper 8. When the position needs to be adjusted, the restriction can be released by moving the limiting block 15, thus achieving flexible control of the position of the scraper 8.
[0043] The positioning rod 16 is movably connected to the connecting rod 13, and plays a positioning and stabilizing role when the connecting rod 13 moves, ensuring that the moving direction of the connecting rod 13 is accurate, so that the limiting block 15 can accurately cooperate with the slot 11.
[0044] Working principle:
[0045] During use, the fried rice crusts are evenly placed into the rotating drum 5 inside the centrifuge 1. The rotating drum 5 has many small holes around its perimeter and an oil drain hole at its bottom. The servo motor 3 is activated to rotate the drum 5. Under the centrifugal force generated by the high-speed rotation, the rice crusts and oil experience different forces. Because the oil is less dense than the rice crusts, the oil is thrown to the outside of the drum 5, flows down its inner wall, and finally flows out through the oil outlet 4 into a special oil collection device. After the oil removal is complete, the protective cover 2 is removed. Then, by holding the two handles 9, the fixed connecting sleeve 7 is moved. The movement of the connecting sleeve 7 moves the fixed scraper 8, which adheres to the inner wall of the drum 5. As it moves, the scraper removes the rice crusts adhering to the inner wall of the drum 5. The scraper 8 can scrape off as much rice crust as possible, reducing residue inside the drum 5 and helping to keep the inside of the drum clean, preventing residual rice crusts from affecting the next oil removal process. When there is too much burnt rice, the scraper 8 cannot remove it all at once when it moves upward. Before removal, the push block 12 needs to be pulled to move the fixed connecting rod 13 together. The positioning rod 16 ensures the stability of the moving connecting rod 13. During the movement of the connecting rod 13, the fixed limiting block 15 will move together, compressing the return spring 14. At this time, the limiting block 15 will disengage from the slot 11 on the fixed rod 6 and open the limit. When there is too much burnt rice, as the scraper 8 moves upward, the push block 12 is released when it reaches a position where it is easy to remove the burnt rice. The elasticity of the return spring 14 drives the limiting block 15 to return to its original position, so that the connecting sleeve 7 is in a limited and fixed state relative to the fixed rod 6. When the scraper 8 rises to a certain position and is fixed, the scraped burnt rice can form a relatively concentrated and orderly accumulation on the scraper 8, avoiding the burnt rice from scattering randomly in the drum 5 or blocking the outlet of the drum 5. This is conducive to subsequent cleaning and collection work and ensures the smooth operation of the production process.
[0046] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A rice crust processing oil filtration and recovery device, comprising a centrifuge (1) and a protective cover (2), wherein a servo motor (3) is fixedly installed on the lower surface of the centrifuge (1), and an oil outlet (4) is provided on the left side of the centrifuge (1), characterized in that, The centrifuge (1) is rotatably connected to a drum (5), a fixed rod (6) is fixedly connected to the drum (5), and a scraper (8) is provided inside the drum (5). The scraper (8) is fixedly connected to a connecting sleeve (7) on its upper surface. The inner wall of the connecting sleeve (7) is provided with a groove, and a limit block (15) is movably engaged in the groove. A reset spring (14) is fixedly connected to the right surface of the limit block (15).
2. The rice crust processing oil filtration and recovery device as described in claim 1, characterized in that: The inner wall of the connecting sleeve (7) is fixedly connected to two retaining strips (10); Both of the card strips (10) are movably connected to the fixing rod (6).
3. The rice crust processing oil filtration and recovery device as described in claim 1, characterized in that: The reset spring (14) is fixedly connected to the groove.
4. The rice crust processing oil filtration and recovery device as described in claim 1, characterized in that: A connecting rod (13) is fixedly connected to the right surface of the limiting block (15); The connecting rod (13) is movably connected to the reset spring (14).
5. The rice crust processing oil filtration and recovery device as described in claim 4, characterized in that: A push block (12) is fixedly connected to the upper surface of the connecting rod (13).
6. The rice crust processing oil filtration and recovery device as described in claim 1, characterized in that: The connecting sleeve (7) has two handles (9) fixedly connected to its annular side.
7. The rice crust processing oil filtration and recovery device as described in claim 1, characterized in that: The fixed rod (6) has a set of slots (11) on its annular side. In this group, all of the card slots (11) are movably engaged with the limiting block (15).
8. The rice crust processing oil filtration and recovery device as described in claim 1, characterized in that: The connecting sleeve (7) has a positioning rod (16) fixedly connected to its annular side. The positioning rod (16) is movably connected to the connecting rod (13).