A nut screening apparatus
By using a combination structure of ventilation plate and separator cylinder in the nut screening equipment, combined with a vibrating feeder, the problem of poor screening caused by narrow airflow channels in the existing technology is solved, achieving efficient separation and orderly conveying of nuts and impurities, and improving the screening effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGXI CHUNHAOGUO TECHNOLOGY CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-02
AI Technical Summary
In existing nut screening devices, the narrow airflow channel leads to poor impurity removal. The effect is poor when the airflow is weak, and when the airflow is strong, it is easy to blow away nuts and impurities together, and it is easy to generate dust, making it impossible to screen effectively.
Design a nut screening device that uses a ventilation plate and a vertical cylinder to blow air through a large area of nuts, separates impurities using a separator cylinder, and transports nuts in an orderly manner using a vibrating feeding component to achieve multiple screenings.
It increases the contact area between the nuts and the airflow, effectively separates impurities, ensures the orderly movement of the nuts, improves the screening effect and efficiency, and prevents impurities from entering the discharge cylinder.
Smart Images
Figure CN224308982U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nut processing technology, specifically a nut screening device. Background Technology
[0002] Nuts are a type of plant fruit or seed with a hard shell, and they are usually rich in nutrients. Nuts generally have a relatively hard shell, and the kernel inside is the main edible part. Therefore, currently available nuts are generally divided into shelled nuts and shelled nuts.
[0003] The outer shell of shelled nuts contains a large amount of impurities, and the kernel cannot be directly observed, making it impossible to determine whether the kernel is damaged. Shelled nuts generate a large amount of debris and impurities during the shelling process; therefore, both shelled and shelled nuts require sieving. (Chinese Patent Publication No. CN 215031159) U discloses a nut screening device, including a box body. The upper end of the box body is provided with a first screening device, and the lower end of the first screening device is provided with a second screening device. The first screening device includes a feed inlet, an inclined vibrating plate, and a blowing device. The vibrating plate and the top of the inner wall of the box body form a first screening channel. The bottom of the vibrating plate is provided with a vibrating motor. One end of the first screening channel is provided with a first discharge channel. The bottom of the vibrating plate is provided with a support plate. The blowing device is provided on the support plate. The bottom of the vibrating plate is provided with a guide plate. The guide plate, the support plate, and the vibrating plate form a blowing channel. The blowing channel extends upward and forms a first separation channel. The second screening device includes a plurality of guide plates provided on the side wall of the box body. The guide plates and the side wall of the box body and the support plate form a second screening channel.
[0004] The aforementioned nut screening device uses airflow generated by a fan to blow away impurities mixed in with the nuts. However, the airflow channel of the aforementioned nut screening device is relatively narrow, and the nuts pass through the channel for a very short time. When the airflow is weak, the effect of removing impurities is poor. When the airflow is strong, it will not only blow away the nuts and impurities together, but also allow the strong airflow to enter the collection box and then enter the box body through the separation port, causing the impurities in the box to form dust, which will not achieve a normal screening effect. Utility Model Content
[0005] The purpose of this utility model is to provide a nut screening device in which the airflow generated by the fan blows the nuts through the ventilation plate, blowing away the impurities mixed in with the nuts. The size of the ventilation plate is the same as the size of the vertical cylinder, so that the airflow can blow the nuts over a wide area, thereby solving the technical problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A nut screening device includes a screening component, the bottom of which is fixedly connected to a blower; a vibrating feeding component is provided on one side of the screening component, and a hopper is provided on the top of the vibrating feeding component;
[0008] The screening assembly includes a vertical cylinder, the bottom of which is fixedly connected to the air outlet of the blower; the top of which is fixedly connected to the separator; a feed cylinder is fixedly connected to the side of the vertical cylinder near the vibrating feed assembly, and a discharge cylinder is fixedly connected to the side of the vertical cylinder away from the vibrating feed assembly; a ventilation plate is fixedly connected inside the vertical cylinder.
[0009] Both sides of the separator are fixedly connected to air diffusers; a partition is fixedly connected inside the end of the separator away from the vertical cylinder; the end of the separator away from the vertical cylinder is provided with a slag discharge port and a recovery port, wherein the slag discharge port is fixedly connected to the slag discharge cylinder, the recovery port is fixedly connected to the circulation cylinder, and the end of the circulation cylinder away from the recovery port is fixedly connected to the vertical cylinder.
[0010] As a further technical solution of this utility model, the feed cylinder, discharge cylinder and ventilation plate are all inclined and have the same inclination angle; the sides of the ventilation plate are all in contact with the inner wall of the vertical cylinder, and the height of the ventilation plate is the same as the height of the bottom inner wall of the feed cylinder and the discharge cylinder; the feed cylinder and the discharge cylinder are both connected to the vertical cylinder.
[0011] As a further technical solution of this utility model, the separating cylinder is arc-shaped, and the partition is also arc-shaped, dividing the end of the separating cylinder away from the vertical cylinder into an outer cavity and an inner cavity; the slag discharge port is connected to the outer cavity, and the recovery port is connected to the inner cavity.
[0012] As a further technical solution of this utility model, the circulating cylinder is located above the discharge cylinder and the ventilation plate, and the circulating cylinder is connected to the vertical cylinder; both the circulating cylinder and the slag discharge cylinder are inclined; the lower outer side of the vertical cylinder and both sides of the slag discharge cylinder are fixedly connected to the support frame.
[0013] As a further technical solution of this utility model, the vibrating feeder is located above the feed cylinder, and both the vibrating feeder and the hopper are fixedly connected to the upright frame.
[0014] As a further technical solution of this utility model, the vibrating feeding assembly includes a conveyor frame, which is inclined and corresponds to the position of the discharge port of the hopper, and a plurality of conveyor plates for transferring nuts are uniformly fixedly connected to the inner side of the conveyor frame.
[0015] As a further technical solution of this utility model, the two sides of the conveyor frame and the end away from the feed cylinder are all fixedly connected to the connecting frame 1. The bottom of the multiple connecting frames 1 is fixedly connected to multiple springs. The bottom of the multiple springs is fixedly connected to the top of the multiple connecting frames 2 respectively, and the bottom of the multiple connecting frames 2 is fixedly connected to the upright frame.
[0016] As a further technical solution of this utility model, the bottom of the conveyor frame is rotatably connected to a connecting shaft, both ends of which are fixedly connected to counterweights, and one end of the connecting shaft is connected to a speed reducer, which is connected to a motor; both the motor and the speed reducer are fixedly connected to the upright frame.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. In this utility model, the airflow generated by the blower is blown into the vertical cylinder through the ventilation plate, and blows the nuts passing through the ventilation plate, blowing the shells and other impurities in the nuts upward along the vertical cylinder into the separator cylinder. The nuts then continue to move to the discharge cylinder and enter the nut collection device through the discharge cylinder. The ventilation plate is inclined and located in the vertical cylinder, so its area for airflow is large, which can increase the contact area between the nuts and the airflow and improve the screening effect.
[0019] 2. In this utility model, impurities and lighter nuts blown into the separator by airflow are separated by a partition. The lightest impurities, such as dust and shells, move along the top of the separator and enter the outer cavity. The lighter nuts, being heavier than the dust and shells, enter the inner cavity and then re-enter the vertical cylinder along the circulation cylinder for secondary screening, further improving the screening effect.
[0020] 3. In this utility model, the nuts in the hopper fall onto the conveyor plate, which continuously vibrates and lowers the nuts to the feed cylinder, allowing the nuts to move in an orderly manner without piling up. This ensures the blowing effect of the airflow and prevents impurities from entering the discharge cylinder directly without contacting the airflow, thus ensuring the normal operation of the screening process. Attached Figure Description
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0022] Figure 2 This is a schematic diagram showing the connection between the blower and the screening component of this utility model.
[0023] Figure 3 This utility model Figure 2 Top view.
[0024] Figure 4 This utility model Figure 3AA sectional view.
[0025] Figure 5 This utility model Figure 2 A schematic diagram of the internal structure.
[0026] Figure 6 This utility model Figure 1 A partial structural diagram.
[0027] Figure 7 This utility model Figure 6 Side view.
[0028] Figure 8 This utility model Figure 6 A magnified view of a portion of the image.
[0029] In the diagram: 1-Blower, 2-Screening assembly, 3-Support frame, 4-Vibrating feeder assembly, 5-Hopper, 6-Upright frame;
[0030] 21-Vertical cylinder, 22-Feeding cylinder, 23-Discharge cylinder, 24-Divider cylinder, 25-Air diffuser plate, 26-Slag discharge cylinder, 27-Circulation cylinder, 28-Ventilation plate, 29-Baffle plate, 20-Slag discharge port, 210-Recovery port, 41-Motor, 42-Reducer, 43-Connecting shaft, 44-Counterweight block, 45-Conveyor frame, 46-Connecting frame one, 47-Connecting frame two, 48-Spring, 49-Conveyor plate. Detailed Implementation
[0031] 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.
[0032] Please see Figure 1-8 In this embodiment of the present invention, a nut screening device includes a screening component 2, the bottom of which is fixedly connected to a blower 1; a vibrating feeding component 4 is provided on one side of the screening component 2, and a hopper 5 is provided on the top of the vibrating feeding component 4;
[0033] The screening assembly 2 includes a vertical cylinder 21, the bottom of which is fixedly connected to the air outlet of the blower 1; the top of the vertical cylinder 21 is fixedly connected to the separator 24; a feed cylinder 22 is fixedly connected to the side of the vertical cylinder 21 near the vibrating feed assembly 4, and a discharge cylinder 23 is fixedly connected to the side of the vertical cylinder 21 away from the vibrating feed assembly 4; a ventilation plate 28 is fixedly connected inside the vertical cylinder 21.
[0034] Both sides of the dividing cylinder 24 are fixedly connected to the air diffuser plate 25; the end of the dividing cylinder 24 away from the vertical cylinder 21 is fixedly connected to the partition plate 29; the end of the dividing cylinder 24 away from the vertical cylinder 21 is provided with a slag discharge port 20 and a recovery port 210, wherein the slag discharge port 20 is fixedly connected to the slag discharge cylinder 26, the recovery port 210 is fixedly connected to the circulation cylinder 27, and the end of the circulation cylinder 27 away from the recovery port 210 is fixedly connected to the vertical cylinder 21.
[0035] The feed cylinder 22, discharge cylinder 23 and ventilation plate 28 are all inclined and have the same inclination angle; the sides of the ventilation plate 28 are all in contact with the inner wall of the vertical cylinder 21, and the height of the ventilation plate 28 is the same as the height of the bottom inner wall of the feed cylinder 22 and the discharge cylinder 23; the feed cylinder 22 and the discharge cylinder 23 are both connected to the vertical cylinder 21.
[0036] By adopting the above technical solution, the airflow generated by the blower 1 is blown into the vertical cylinder 21 through the ventilation plate 28, and blows the nuts passing through the ventilation plate 28, blowing the shells and other impurities in the nuts upward along the vertical cylinder 21 into the separator cylinder 24. The nuts then continue to move to the discharge cylinder 23 and enter the nut collection device through the discharge cylinder 23. The ventilation plate 28 is inclined and located in the vertical cylinder 21, so its area for airflow is large, which can increase the contact area between the nuts and the airflow and improve the screening effect.
[0037] In this embodiment, the separator 24 is arc-shaped, and the partition 29 is also arc-shaped, dividing the interior of the separator 24 away from the vertical cylinder 21 into an outer cavity and an inner cavity; the slag discharge port 20 is connected to the outer cavity, and the recovery port 210 is connected to the inner cavity.
[0038] The circulating cylinder 27 is located above the discharge cylinder 23 and the ventilation plate 28, and the circulating cylinder 27 is connected to the vertical cylinder 21; both the circulating cylinder 27 and the slag discharge cylinder 26 are inclined; the lower outer side of the vertical cylinder 21 and both sides of the slag discharge cylinder 26 are fixedly connected to the support frame 3.
[0039] By adopting the above technical solution, impurities and lighter nuts blown into the separator 24 by the airflow will be separated by the partition 29. The lightest impurities, such as dust and shells, will move along the top of the separator 24 and enter the outer cavity. The lighter nuts, because they are heavier than dust and shells, will enter the inner cavity and re-enter the vertical cylinder 21 along the circulation cylinder 27 for secondary screening, further improving the screening effect.
[0040] In this embodiment, the vibrating feeder 4 is located above the feed cylinder 22, and both the vibrating feeder 4 and the hopper 5 are fixedly connected to the upright frame 6.
[0041] The vibrating feeding assembly 4 includes a conveyor frame 45, which is inclined and corresponds to the position of the discharge port of the hopper 5, and a plurality of conveyor plates 49 for transferring nuts are uniformly fixedly connected to the inner side of the conveyor frame 45.
[0042] The conveyor frame 45 is fixedly connected to both sides and one end away from the feed cylinder 22 by a connecting frame 46. The bottom of the connecting frame 46 is fixedly connected to a spring 48. The bottom of the spring 48 is fixedly connected to the top of the connecting frame 47, and the bottom of the connecting frame 47 is fixedly connected to the upright frame 6.
[0043] The bottom of the conveyor frame 45 is rotatably connected to a connecting shaft 43. Both ends of the connecting shaft 43 are fixedly connected to counterweights 44, and one end of the connecting shaft 43 is driven by a reducer 42. The reducer 42 is driven by a motor 41. Both the motor 41 and the reducer 42 are fixedly connected to the upright frame 6.
[0044] By adopting the above technical solution, the nuts in the hopper 5 fall onto the conveyor plate 49, and the conveyor plate 49 continuously vibrates and lowers the nuts to the feed cylinder 22, allowing the nuts to move in an orderly manner without clogging, ensuring the blowing effect of the airflow, preventing impurities from entering the discharge cylinder 23 directly without contacting the airflow, and ensuring the normal operation of the screening work.
[0045] The working principle of this utility model is as follows: the airflow generated by the blower 1 is blown into the vertical cylinder 21 through the ventilation plate 28, and blows the nuts passing through the ventilation plate 28, blowing the shells and other impurities in the nuts upward along the vertical cylinder 21 into the separator cylinder 24. The nuts then continue to move to the discharge cylinder 23 and enter the nut collection device through the discharge cylinder 23. The ventilation plate 28 is inclined and located in the vertical cylinder 21, so its area for airflow is large, which can increase the contact area between the nuts and the airflow and improve the screening effect.
[0046] Impurities and lighter nuts blown into the separator 24 by the airflow will be separated by the partition 29. The lightest impurities, such as dust and shells, will move along the top of the separator 24 and enter the outer cavity. The lighter nuts, because they are heavier than dust and shells, will enter the inner cavity and re-enter the vertical cylinder 21 along the circulation cylinder 27 for secondary screening, further improving the screening effect.
[0047] Nuts in hopper 5 fall onto conveyor plate 49, which vibrates continuously to transfer the nuts to feed cylinder 22, allowing the nuts to move in an orderly manner without clogging, ensuring the blowing effect of the airflow, and preventing impurities from entering the discharge cylinder 23 directly without contacting the airflow, thus ensuring the normal operation of the screening process.
[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A nut screening device, characterized in that: It includes a screening component (2), the bottom of which is fixedly connected to a blower (1); a vibrating feeder (4) is provided on one side of the screening component (2), and a hopper (5) is provided on the top of the vibrating feeder (4); The screening assembly (2) includes a vertical cylinder (21), the bottom of which is fixedly connected to the air outlet of the blower (1); the top of the vertical cylinder (21) is fixedly connected to the separator cylinder (24); a feed cylinder (22) is fixedly connected to the side of the vertical cylinder (21) near the vibrating feed assembly (4), and a discharge cylinder (23) is fixedly connected to the side of the vertical cylinder (21) away from the vibrating feed assembly (4); a ventilation plate (28) is fixedly connected inside the vertical cylinder (21). Both sides of the partition cylinder (24) are fixedly connected to the air diffuser plate (25); the partition cylinder (24) is fixedly connected to the interior of the end away from the vertical cylinder (21); the partition cylinder (24) is provided with a slag discharge port (20) and a recovery port (210) at the end away from the vertical cylinder (21), wherein the slag discharge port (20) is fixedly connected to the slag discharge cylinder (26), the recovery port (210) is fixedly connected to the circulation cylinder (27), and the end of the circulation cylinder (27) away from the recovery port (210) is fixedly connected to the vertical cylinder (21).
2. The nut screening equipment according to claim 1, characterized in that: The feed cylinder (22), discharge cylinder (23) and ventilation plate (28) are all inclined and have the same inclination angle; the side of the ventilation plate (28) is in contact with the inner wall of the vertical cylinder (21), and the height of the ventilation plate (28) is the same as the height of the bottom inner wall of the feed cylinder (22) and discharge cylinder (23); the feed cylinder (22) and discharge cylinder (23) are both connected to the vertical cylinder (21).
3. The nut screening equipment according to claim 1, characterized in that: The separator (24) is arc-shaped, and the partition (29) is also arc-shaped, dividing the interior of the separator (24) away from the vertical cylinder (21) into an outer cavity and an inner cavity; the slag discharge port (20) is connected to the outer cavity, and the recovery port (210) is connected to the inner cavity.
4. The nut screening equipment according to claim 1, characterized in that: The circulating cylinder (27) is located above the discharge cylinder (23) and the ventilation plate (28), and the circulating cylinder (27) is connected to the vertical cylinder (21); the circulating cylinder (27) and the slag discharge cylinder (26) are both inclined; the lower outer side of the vertical cylinder (21) and both sides of the slag discharge cylinder (26) are fixedly connected to the support frame (3).
5. The nut screening equipment according to claim 1, characterized in that: The vibrating feed assembly (4) is located above the feed cylinder (22), and both the vibrating feed assembly (4) and the hopper (5) are fixedly connected to the upright frame (6).
6. The nut screening equipment according to claim 5, characterized in that: The vibrating feeder assembly (4) includes a conveyor frame (45), which is inclined and corresponds to the position of the discharge port of the hopper (5), and a plurality of conveyor plates (49) for transferring nuts are uniformly fixedly connected to the inner side of the conveyor frame (45).
7. The nut screening equipment according to claim 6, characterized in that: The conveyor frame (45) is fixedly connected to two sides and one end away from the feed cylinder (22) by a connecting frame (46). Multiple springs (48) are fixedly connected to the bottom of multiple connecting frames (46). The bottom of multiple springs (48) is fixedly connected to the top of multiple connecting frames (47), and the bottom of multiple connecting frames (47) is fixedly connected to the upright frame (6).
8. The nut screening equipment according to claim 6, characterized in that: The bottom of the conveyor frame (45) is rotatably connected to a connecting shaft (43), and both ends of the connecting shaft (43) are fixedly connected to counterweights (44). One end of the connecting shaft (43) is connected to a reducer (42) for transmission, and the reducer (42) is connected to a motor (41) for transmission. Both the motor (41) and the reducer (42) are fixedly connected to the upright frame (6).