Raw material winnowing screening equipment and screening method for peanut oil preparation

Abstract

The invention relates to the technical field of peanut oil preparation, in particular to raw material winnowing and screening equipment for peanut oil preparation and a screening method.The raw material winnowing and screening equipment comprises a conveying frame and a conveying side frame, the top end of the conveying side frame is fixedly connected with a discharging seat, and one end of the discharging seat is fixedly connected with a storage frame; a first driving motor is arranged at the top of the discharging base, and one end of the first driving motor is fixedly connected with a rotating base. According to the peanut oil raw material screening device, through the arrangement of the conveying frame, the second driving motor, the conveying belt, the separation through frame and the Z-shaped through frame, efficient and stable air screening operation on peanut oil raw materials can be achieved, and in the actual using process, a worker firstly places the peanut raw materials needing to be screened into a storage frame; and then the raw materials enter the conveying frame along the discharging base and the conveying side frame, at the moment, a conveying belt in the conveying frame is started through a second driving motor to drive the raw materials to be conveyed, and the raw materials are subjected to coat breaking operation in the conveying process.

Description

Technical Field

[0001] This invention relates to the field of peanut oil preparation technology, specifically to a raw material air separation and screening device and method for peanut oil preparation. Background Technology

[0002] Peanut oil is composed of 20% saturated fatty acids and 80% unsaturated fatty acids, primarily oleic acid, linoleic acid, and palmitic acid. It is a drying oil, pale yellow and transparent with a pleasant aroma, and is a high-quality cooking oil. Peanut oil can be classified into solvent-extracted peanut oil and pressed peanut oil according to its production process. Solvent-extracted peanut oil is obtained through solvent extraction, while pressed peanut oil is obtained through pressing. Pressing is a method of edible oil production that uses physical pressure to directly separate the oil from the oilseeds. The entire process involves no chemical additives, ensuring the product's safety, hygiene, and lack of pollution, while preserving its natural nutrients. Pressing is a method of extracting oil by squeezing it from the oilseeds using mechanical force. Based on the depth of pressing and the pressure applied to the material during pressing, pressed oil can be divided into single-pressing and pre-pressing, which combines solvent extraction and pressing. Compared with other oil extraction methods, pressing has advantages such as simple process, fewer supporting equipment, strong adaptability to oilseed varieties, flexible production, and good oil quality, light color, and pure flavor. However, the residual oil content in the cake after pressing is high, power consumption is large, and parts are easily worn out. This method can be used to extract oil from seeds or nuts such as cocoa beans, coconuts, peanuts, palm kernels, soybeans, and rapeseed. In addition, another important use of pressing is to make juice, such as apple, citrus, and tomato juice. Currently, there are two methods for producing edible oil: pressing (physical) and solvent extraction (chemical). Solvent extraction uses a chemical substance to extract the oil, and the oil yield is higher than that of pressing. However, solvent extraction is used, which cannot maintain the original flavor of the vegetable oil and also poses safety hazards. Peanut oil usually needs to be air-sieved before preparation to ensure the cleanliness of the raw materials.

[0003] For example, patent document CN 215997558 U discloses a wind-classifying screening machine for peanut oil preparation raw materials, including a screening machine body. A feed cylinder is fixedly embedded in the upper surface of the screening machine body, and a baffle is movably installed inside the feed cylinder. An air intake fan is movably installed on one side of the screening machine body, and an exhaust pipe is fixedly embedded in the other side of the screening machine body. An exhaust fan is movably installed inside the exhaust pipe. A filter plate is movably embedded in the front surface of the screening machine body, and a filter screen is movably embedded inside the exhaust pipe. A cover plate is movably embedded in the front surface of the screening machine body, and a hinge is fixedly embedded near the upper end of the cover plate. This wind-classifying screening machine for peanut oil preparation raw materials can separate dust and debris from the raw materials, improving screening quality, reducing dust pollution caused by screening raw materials, controlling the discharge speed of the feed cylinder to prevent clogging, and facilitating disassembly and cleaning of the screening machine.

[0004] However, in practical use, this structure typically only allows for direct shelling of peanuts followed by simultaneous air screening. This easily leads to peanut skins being mixed with other impurities in the peanuts, making efficient and stable air screening impossible. Furthermore, uneven size distribution of peanut skins during peeling makes it difficult for the equipment to efficiently screen peanut skins of different sizes, affecting the final processing effect. Additionally, the equipment as a whole cannot perform uniform peeling and air screening of peanut raw materials, resulting in uneven peanut density during each air screening operation, ultimately impacting the quality of the screening and hindering daily use. Therefore, there is an urgent need to design a raw material air classification and screening device and method for peanut oil preparation to solve these problems. Summary of the Invention

[0005] The purpose of this invention is to provide a raw material air separation and screening device and method for peanut oil preparation, to solve the problems mentioned in the background art. In practical use, existing structures typically only allow for direct peeling of peanuts followed by simultaneous air sieving, which easily leads to peanut skins being mixed with other impurities, making efficient and stable air sieving impossible. Furthermore, uneven size distribution of peanut skins during peeling prevents the equipment from efficiently processing peanut skins of different sizes, affecting the final processing effect. Additionally, the equipment as a whole cannot perform uniform peeling and air sieving of peanut raw materials, resulting in uneven peanut density during each air sieving operation, ultimately affecting the quality of the air sieving and hindering daily use.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a raw material air separation and screening device for peanut oil preparation, comprising a conveyor frame, a feeding side frame fixedly connected to the side of the conveyor frame, a feeding seat fixedly connected to the top of the feeding side frame, a storage rack fixedly connected to one end of the feeding seat, a first drive motor provided at the top of the feeding seat, a rotating seat fixedly connected to one end of the first drive motor, a bearing ring provided at the bottom of the rotating seat, a conical feeding frame movably connected to the bottom of the rotating seat through the bearing ring, a second drive motor provided on the side of the right end of the conveyor frame, a conveyor belt provided at one end of the second drive motor, a fixed connection between the left end of the bottom of the conveyor frame and the top of the separating passage frame, and a fixed connection between the right end of the bottom of the conveyor frame and the top of the Z-shaped passage frame.

[0007] Preferably, the Z-shaped through frame is provided with a bearing seat on its side, the bottom end of the separating through frame is fixedly connected to a base frame, and the surface of the base frame is provided with a waste chip rack.

[0008] Preferably, a first collection rack is movably connected inside the base frame, and a second collection rack is movably connected inside the waste rack. A connecting strip is fixedly connected between the first collection rack and the second collection rack, and collection grooves are provided on the surfaces of both the first collection rack and the second collection rack.

[0009] Preferably, the surface of the waste rack is provided with a ventilation mesh, the bottom of the base frame is fixedly connected to a support seat, the side of the bearing seat is provided with a rotating roller, and the four sides of the side of the rotating roller are fixedly connected with blades.

[0010] Preferably, a fan frame is fixedly connected to the back of the separating frame, an L-shaped ventilation frame is fixedly connected to the top of the fan frame, a retractable frame is fixedly connected to one end of the L-shaped ventilation frame, an electric push rod is provided on the surface of the retractable frame, a lower pressure frame is fixedly connected to the bottom end of the electric push rod, and a top pressure pad is fixedly connected to the bottom end of the lower pressure frame.

[0011] Preferably, the inner wall of the fan frame is provided with a ventilation fan, and a wind deflector is fixedly connected to the center of the inner wall of the fan frame.

[0012] Preferably, the surface of the conveyor belt is provided with a first dust removal net, the two sides of the conveyor belt are fixedly connected with limit strips, the surface of the conveyor belt is uniformly fixedly connected with an arc-shaped frame, and the inner wall of the arc-shaped frame is provided with a second dustproof net.

[0013] Preferably, a feeding groove is provided at one end of the feeding side frame, a feeding hole is provided at the top of the feeding side frame, a feeding groove is provided on the side of the rotating seat, and a sealing ring is provided on the inner wall of the feeding groove.

[0014] A method for air-separation screening of raw materials for peanut oil preparation: S: Start the first drive motor on the top of the feeding seat, so that it drives the entire rotating seat to rotate slowly inside the feeding seat. When the feeding chute of the rotating seat connects with the storage rack, the peanut raw material can be quickly fed out. Then the rotating seat rotates again, so that the peanut raw material inside the rotating seat can be evenly fed out from the bearing ring and the conical feeding rack in sequence. The fed peanut raw material flows into the interior of the conveying rack through the feeding hole and feeding chute of the conveying side frame, and then falls steadily onto the arc frame of the conveyor belt. The limiting strips on both sides of the conveyor belt perform a stable limiting operation. At this time, the second drive motor drives the conveyor belt to cooperate with the feeding of the rotating seat to perform intermittent rotation operation, so that the peanut raw material can be evenly and neatly arranged on the arc frame. S: Start the ventilation fan inside the fan frame. The airflow generated by the ventilation fan is divided into two streams by the air distribution plate. One stream enters the conveyor frame through the L-shaped ventilation frame and quickly blows away the debris and broken peanut skins on the surface of the peanut raw material inside the conveyor frame. It is then quickly blown out along the first dust net of the conveyor belt and falls into the Z-shaped ventilation frame, and then is conveyed into the waste rack along the Z-shaped ventilation frame. At the same time, the other airflow from the ventilation fan continuously blows at the separation frame. When the peanut raw material falls into the separation frame from one end of the conveyor frame, the peanut fruit is separated from the relatively intact peanut skin.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This raw material air-separation screening equipment and method for peanut oil preparation, through a set of conveyor frame, second drive motor, conveyor belt, separating frame, Z-shaped frame, base frame, waste rack, first collection frame, second collection frame, fan frame, L-shaped ventilation frame, shrink frame, and ventilation fan, can achieve efficient and stable air-separation of peanut oil raw materials. In actual use, the operator first puts the peanut raw materials to be screened into the storage rack, and then the raw materials enter the conveyor frame through the feeding seat and conveying side frame. At this time, the second drive motor starts the conveyor belt inside the conveyor frame, which drives the raw materials to move and convey them. During the conveying process, the raw materials are broken apart. Then, the ventilation fan inside the fan frame is started. The airflow generated by the ventilation fan is divided into two streams by the air distribution plate. One stream enters the conveyor frame through the L-shaped ventilation frame, and the airflow inside the conveyor frame is further separated. The peanut raw material is rapidly blown away by a blowing operation, removing surface debris and broken peanut skins. This debris is quickly blown out along the first dust screen of the conveyor belt and falls into the Z-shaped frame, then is conveyed to the waste chip rack. Simultaneously, another airflow from the ventilation fan continuously blows through the separation frame. When the peanut raw material falls from one end of the conveyor frame into the separation frame, the peanut kernels are separated from the relatively intact peanut skins. The peanut kernels flow down the bottom frame into the first collection rack, while the peanut skins are blown into the Z-shaped frame to mix with the debris, and then both enter the second collection rack for unified collection. Finally, the first and second collection racks, connected by a connecting strip, are pulled out of the equipment together. This process effectively separates and collects the raw material from the impurities, significantly improving the air screening effect of the peanut raw material and demonstrating the practicality of the equipment design.

[0016] This raw material air-separation screening equipment and method for peanut oil preparation improves the overall performance of the equipment through the following components: a conveying side frame, a feeding seat, a storage rack, a first drive motor, a rotating seat, a bearing ring, a conical feeding rack, a bearing seat, a rotating roller, blades, a shrinking frame, an electric push rod, a lower pressure frame, a top pressure pad, a first dust removal net, an arc-shaped frame, and a second dustproof net. During daily use, when peanut raw materials are poured into the storage rack, the first drive motor on top of the feeding seat is activated, causing the rotating seat to slowly rotate inside. When the feed chute of the rotating seat aligns with the storage rack, the peanut raw materials are quickly and forcefully fed out. The rotating seat then rotates again, allowing the peanut raw materials inside to be evenly fed down from the bearing ring and the conical feeding rack. The fed peanut raw materials flow along the feeding holes and feed chute of the conveying side frame to the conveying frame. Inside the peanut shells, the peanuts fall steadily onto the arc-shaped frame of the conveyor belt. The limiting strips on both sides of the conveyor belt provide stable positioning. At this time, the second drive motor drives the conveyor belt to rotate intermittently in coordination with the material feeding of the rotating seat, so that the peanut raw materials can be evenly and neatly arranged on the arc-shaped frame. When the conveyor belt moves the arc-shaped frame under the shrinking frame, the electric push rod is activated to drive the lower pressure frame and the top pressure pad to perform a balanced pressing and peeling operation on the surface of the arc-shaped frame, ensuring a more uniform peeling quality. At the same time, when the whole peanut shells, broken peanut shells, and peanut scraps gather from the separating frame and the Z-shaped frame to the waste scrap frame, the rotating rollers and blades connected to the bearing seat can slowly rotate and pat under the airflow of the fan frame, quickly mixing the two and avoiding the accumulation of waste scraps, improving the overall processing effect and demonstrating the comprehensiveness of the equipment design. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the structure of the present invention; Figure 2 This is an overall schematic diagram of the second drive motor structure of the present invention; Figure 3 This is an overall schematic diagram of the material conveying side frame and unloading seat structure of the present invention; Figure 4 This is an overall schematic diagram of the first drive motor structure of the present invention; Figure 5 This is an overall schematic diagram of the retractable frame structure of the present invention; Figure 6 This is an overall schematic diagram of the bearing housing structure of the present invention; Figure 7 This is an overall schematic diagram of the first and second collection rack structures of the present invention; Figure 8 This is a schematic diagram of the overall structure of the wind turbine frame of the present invention.

[0018] In the diagram: 1. Conveyor frame; 2. Conveying side frame; 3. Discharge seat; 4. Storage rack; 5. First drive motor; 6. Rotating seat; 7. Bearing ring; 8. Conical discharge rack; 9. Second drive motor; 10. Conveyor belt; 11. Separating through rack; 12. Z-shaped through rack; 13. Bearing seat; 14. Base frame; 15. Waste rack; 16. First collection rack; 17. Second collection rack; 18. Connecting bar; 19. Collection trough; 20. Through 21. Air mesh fabric; 22. Support base; 23. Rotating roller; 24. Blade; 25. Fan frame; 26. L-shaped ventilation frame; 27. Retractable frame; 28. Electric push rod; 29. ​​Lower pressure frame; 30. Top pressure pad; 31. Ventilation fan; 32. Air distribution plate; 33. First dust filter; 34. Limiting edge strip; 35. Arc-shaped frame; 36. Second dustproof net; 37. Discharge chute; 38. Discharge hole; 39. Feed chute; 30. Sealing ring. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1-8 One embodiment provided by the present invention: A raw material air separation screening device for peanut oil preparation. The first drive motor 5, second drive motor 9, bearing housing 13, electric push rod 27, ventilation fan 30, and sealing ring 39 used in this application are commercially available products. Their principles and connection methods are existing technologies well-known to those skilled in the art. The device includes a conveyor frame 1, a material conveying side frame 2 fixedly connected to the side of the conveyor frame 1, a material discharge seat 3 fixedly connected to the top of the material conveying side frame 2, a material storage rack 4 fixedly connected to one end of the material discharge seat 3, a first drive motor 5 mounted on the top of the material discharge seat 3, a rotating seat 6 fixedly connected to one end of the first drive motor 5, a bearing ring 7 mounted on the bottom of the rotating seat 6, and a conical material discharge frame 8 movably connected to the bottom of the rotating seat 6 via the bearing ring 7. A second drive motor 9 is mounted on the side of the right end of the conveyor frame 1, a conveyor belt 10 is mounted on one end of the second drive motor 9, and a separation ventilation frame 11 is fixedly mounted on the back. A fan frame 24 is fixedly connected to the top of the fan frame 24. An L-shaped ventilation frame 25 is fixedly connected to the top of the fan frame 24. A shrink frame 26 is fixedly connected to one end of the L-shaped ventilation frame 25. An electric push rod 27 is provided on the surface of the shrink frame 26. A pressure frame 28 is fixedly connected to the bottom end of the electric push rod 27. A pressure pad 29 is fixedly connected to the bottom end of the pressure frame 28. A ventilation fan 30 is provided on the inner wall of the fan frame 24. A wind deflector 31 is fixedly connected to the center of the inner wall of the fan frame 24. A first dust net 32 ​​is provided on the surface of the conveyor belt 10. Limiting strips 33 are fixedly connected to both sides of the conveyor belt 10. An arc frame 34 is evenly fixedly connected to the surface of the conveyor belt 10. A second dust net 35 is provided on the inner wall of the arc frame 34. A feeding trough 36 is opened at one end of the feeding side frame 2. A feeding hole 37 is opened at the top of the feeding side frame 2. A feeding trough 38 is opened on the side of the rotating seat 6. A sealing ring 39 is provided on the inner wall of the feeding trough 38.

[0021] The conveyor frame 11 and the Z-shaped conveyor frame 12 are separated. The left end of the bottom of the conveyor frame 1 is fixedly connected to the top of the separating conveyor frame 11, and the right end of the bottom of the conveyor frame 1 is fixedly connected to the top of the Z-shaped conveyor frame 12. The side of the Z-shaped conveyor frame 12 is provided with a bearing seat 13. The bottom end of the separating conveyor frame 11 is fixedly connected with a base frame 14. The surface of the base frame 14 is provided with a waste rack 15. The inside of the base frame 14 is movably connected with a first collection rack 16. The inside of the waste rack 15 is movably connected with a second collection rack 17. A connecting strip 18 is fixedly connected between the first collection rack 16 and the second collection rack 17. The surfaces of the first collection rack 16 and the second collection rack 17 are both provided with collection grooves 19. The surface of the waste rack 15 is provided with a ventilation mesh 20. The bottom of the base frame 14 is fixedly connected with a support seat 21. The side of the bearing seat 13 is provided with a rotating roller 22. The four sides of the side of the rotating roller 22 are fixedly connected with blades 23.

[0022] A method for air-separation screening of raw materials for peanut oil preparation: S1: Start the first drive motor 5 at the top of the feeding seat 3, so that it drives the rotating seat 6 to rotate slowly inside the feeding seat 3. When the feeding groove 38 of the rotating seat 6 is connected with the storage rack 4, the peanut raw material can be quickly fed out. Then the rotating seat 6 rotates again, so that the peanut raw material inside the rotating seat 6 can be evenly fed out from the bearing ring 7 and the conical feeding rack 8. The fed peanut raw material flows into the interior of the conveying rack 1 through the feeding hole 37 and feeding groove 38 of the conveying side rack 2, and then falls steadily onto the arc frame 34 of the conveyor belt 10. The limiting strips 33 on both sides of the conveyor belt 10 perform a stable limiting operation. At this time, the second drive motor 9 drives the conveyor belt 10 to rotate intermittently in coordination with the feeding of the rotating seat 6, so that the peanut raw material can be evenly and neatly arranged on the arc frame 34. S2: Start the ventilation fan 30 inside the fan frame 24. The airflow generated by the ventilation fan 30 is divided into two streams by the air distribution plate 31. One stream enters the interior of the conveyor frame 1 along the L-shaped ventilation frame 25. It blows the debris on the surface of the peanut raw material inside the conveyor frame 1 and the remaining peanut skin mixed with broken skin quickly. It blows the debris out quickly along the first dust net 32 ​​of the conveyor belt 10 and then into the interior of the Z-shaped ventilation frame 12. It is then conveyed into the waste chip rack 15 along the Z-shaped ventilation frame 12. At the same time, the other airflow from the ventilation fan 30 continuously blows the separation frame 11. When the peanut raw material falls into the separation frame 11 from one end of the conveyor frame 1, the peanut fruit is separated from the relatively intact peanut skin.

[0023] Working Principle: During operation, the user first places the peanut raw material to be screened into the storage rack 4. The material then flows along the feed seat 3 and the conveying side frame 2 into the conveyor rack 1. At this time, the second drive motor 9 starts the conveyor belt 10 inside the conveyor rack 1, causing it to transport the raw material. During transport, the peanut skin is broken. Then, the ventilation fan 30 inside the blower frame 24 is started. The airflow generated by the ventilation fan 30 is divided into two streams by the air distribution plate 31. One stream flows along the L-shaped ventilation frame 25 into the conveyor rack 1, rapidly blowing away debris and residual peanut skins mixed with broken skins from the surface of the peanut raw material inside the conveyor rack 1. This debris is then carried along the first dust screen 32 of the conveyor belt 10. The peanuts are quickly blown out and fall into the Z-shaped frame 12, then conveyed to the waste rack 15. Simultaneously, the ventilation fan 30 continuously blows air onto the separating frame 11. When the peanut material falls from one end of the conveyor frame 1 into the separating frame 11, the peanut kernels are separated from the relatively intact peanut skins. The peanut kernels flow down the base frame 14 into the first collection rack 16, while the peanut skins are blown into the Z-shaped frame 12 to mix with the waste, and then both enter the second collection rack 17 for unified collection. Finally, the first collection rack 16 and the second collection rack 17, connected by the connecting strip 18, are pulled out of the equipment together to separate and collect the raw materials and impurities. During the process, when the peanut raw material is poured into the storage rack 4, the first drive motor 5 at the top of the feeding seat 3 is started, causing the rotating seat 6 to slowly rotate inside the feeding seat 3. When the feeding chute 38 of the rotating seat 6 aligns with the storage rack 4, the peanut raw material can be quickly fed out. Then the rotating seat 6 rotates again, allowing the peanut raw material inside the rotating seat 6 to be evenly fed down from the bearing ring 7 and the conical feeding rack 8. The fed peanut raw material flows along the feeding hole 37 and feeding chute 38 of the conveying side frame 2 into the interior of the conveying frame 1, and then falls steadily onto the arc frame 34 of the conveyor belt 10. The limiting strips 33 on both sides of the conveyor belt 10 provide stable limiting. At this time, the second drive motor... 9 drives the conveyor belt 10 to work in conjunction with the rotating seat 6 to perform intermittent rotation operations, so that the peanut raw materials can be evenly and neatly arranged on the arc frame 34. When the conveyor belt 10 moves the arc frame 34 to below the shrinking frame 26, the electric push rod 27 is activated to drive the lower pressing frame 28 and the top pressing pad 29 to perform a balanced downward pressing and peeling operation on the surface of the peanut raw materials of the arc frame 34, ensuring that the peeling quality is more uniform. At the same time, when the whole peanut shells, broken peanut shells and peanut scraps are collected from the separating frame 11 and the Z-shaped frame 12 to the waste scrap frame 15, the rotating roller 22 and blade 23 connected to the bearing seat 13 can slowly rotate and pat under the airflow of the fan frame 24, quickly mixing the two.To avoid the accumulation of waste, the above describes the entire working principle of this invention.

[0024] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A raw material air separation and screening device for peanut oil preparation, comprising a conveyor frame (1), characterized in that: The conveying frame (1) is fixedly connected to a material conveying side frame (2) on its side. The top of the material conveying side frame (2) is fixedly connected to a material feeding seat (3). One end of the material feeding seat (3) is fixedly connected to a storage rack (4). The top of the material feeding seat (3) is provided with a first drive motor (5). One end of the first drive motor (5) is fixedly connected to a rotating seat (6). The bottom of the rotating seat (6) is provided with a bearing ring (7). The bottom of the rotating seat (6) is movably connected to a conical material feeding frame (8) through the rotating seat (6). The side of the right end of the conveying frame (1) is provided with a second drive motor (9). One end of the second drive motor (9) is provided with a conveyor belt (10). The left end of the bottom of the conveying frame (1) is fixedly connected to the top of the separation through frame (11). The right end of the bottom of the conveying frame (1) is fixedly connected to the top of the Z-shaped through frame (12).

2. The air-separation screening device for raw materials in peanut oil preparation according to claim 1, characterized in that: The side of the Z-shaped through frame (12) is provided with a bearing seat (13), the bottom end of the separation through frame (11) is fixedly connected with a base frame (14), and the surface of the base frame (14) is provided with a waste chip rack (15).

3. The air-separation screening device for raw materials in peanut oil preparation according to claim 2, characterized in that: The base frame (14) is internally connected to a first collection rack (16), and the waste rack (15) is internally connected to a second collection rack (17). A connecting strip (18) is fixedly connected between the first collection rack (16) and the second collection rack (17). Collection grooves (19) are provided on the surfaces of the first collection rack (16) and the second collection rack (17).

4. The air-separation screening device for raw materials in peanut oil preparation according to claim 2, characterized in that: The surface of the waste rack (15) is provided with a ventilation mesh (20), the bottom of the base frame (14) is fixedly connected with a support seat (21), the side of the bearing seat (13) is provided with a rotating roller (22), and the four sides of the side of the rotating roller (22) are fixedly connected with blades (23).

5. The air-separation screening device for raw material preparation of peanut oil according to claim 1, characterized in that: A fan frame (24) is fixedly connected to the back of the separation frame (11). An L-shaped ventilation frame (25) is fixedly connected to the top of the fan frame (24). A retractable frame (26) is fixedly connected to one end of the L-shaped ventilation frame (25). An electric push rod (27) is provided on the surface of the retractable frame (26). A pressure frame (28) is fixedly connected to the bottom end of the electric push rod (27). A pressure pad (29) is fixedly connected to the bottom end of the pressure frame (28).

6. The air-separation screening device for raw material preparation of peanut oil according to claim 5, characterized in that: The inner wall of the fan frame (24) is provided with a ventilation fan (30), and a wind distribution plate (31) is fixedly connected to the center of the inner wall of the fan frame (24).

7. The air-separation screening device for raw material preparation of peanut oil according to claim 1, characterized in that: The surface of the conveyor belt (10) is provided with a first dust removal net (32), the two sides of the conveyor belt (10) are fixedly connected with limit strips (33), the surface of the conveyor belt (10) is uniformly fixedly connected with an arc frame (34), and the inner wall of the arc frame (34) is provided with a second dustproof net (35).

8. The air-separation screening device for raw material preparation of peanut oil according to claim 1, characterized in that: The material conveying side frame (2) has a feeding groove (36) at one end, a feeding hole (37) at the top of the material conveying side frame (2), a feeding groove (38) on the side of the rotating seat (6), and a sealing ring (39) on the inner wall of the feeding groove (38).

9. A method for air-separation screening of raw materials for peanut oil preparation, characterized in that: S1: Start the first drive motor (5) on the top of the feeding seat (3) to drive the rotating seat (6) to rotate slowly inside the feeding seat (3). When the feeding groove (38) of the rotating seat (6) connects with the storage rack (4), the peanut raw material can be quickly fed out. Then the rotating seat (6) rotates again, so that the peanut raw material inside the rotating seat (6) can be evenly fed out from the bearing ring (7) and the conical feeding rack (8) in sequence. Peanut raw materials flow into the interior of the conveyor frame (1) through the feeding hole (37) and feeding trough (38) of the conveyor side frame (2), and then fall steadily onto the arc frame (34) of the conveyor belt (10). The limiting strips (33) on both sides of the conveyor belt (10) perform stable limiting operations. At this time, the second drive motor (9) drives the conveyor belt (10) to cooperate with the feeding of the rotating seat (6) to perform intermittent rotation operations, so that the peanut raw materials can be evenly and neatly arranged on the arc frame (34). S2: Start the ventilation fan (30) inside the fan frame (24). The airflow generated by the ventilation fan (30) is divided into two streams by the air distribution plate (31). One stream enters the interior of the conveyor frame (1) along the L-shaped ventilation frame (25). It blows the debris on the surface of the peanut raw material inside the conveyor frame (1) and the broken peanut skin mixed with broken skin quickly. It blows the debris out quickly along the first dust net (32) of the conveyor belt (10). Then it falls into the interior of the Z-shaped ventilation frame (12) and is conveyed into the waste rack (15) along the Z-shaped ventilation frame (12). At the same time, the other airflow of the ventilation fan (30) blows continuously at the separation rack (11). When the peanut raw material falls into the interior of the separation rack (11) from one end of the conveyor frame (1), the peanut fruit is separated from the relatively intact peanut skin.

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