Stepped double-layer vibration peanut impurity removal bed
By combining stepped sieve plates and a suction device, the problem of incomplete separation of impurities in peanut raw materials is solved, achieving efficient impurity removal and stable equipment operation, thereby improving production efficiency and food safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-06
- Publication Date
- 2026-03-17
AI Technical Summary
Existing technologies are insufficient to effectively remove impurities such as soil clods and lightweight straw of similar size from peanut raw materials, resulting in incomplete impurity removal and affecting food safety and production efficiency.
The No. 1 and No. 2 screen plates are arranged in a stepped manner. Combined with the vibration motor and suction device, peanuts are separated from impurities by the difference in the size of the screen holes. The filter screen is automatically cleaned by electric push rods and push plates to ensure stable operation of the equipment.
It achieves efficient separation of peanut raw materials from various impurities, ensuring food safety, improving production efficiency, and reducing the need for manual maintenance.
Smart Images

Figure CN223996640U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of grain processing and food production equipment, and in particular to a stepped double-layer vibrating peanut cleaning bed. Background Technology
[0002] After harvesting and initial processing, raw peanuts often contain impurities of varying weights and sizes, such as clods of soil, stones, broken pods, and straw. If these impurities are mixed into the finished peanut products, they not only affect the taste but also pose food safety risks. This has become a bottleneck restricting the improvement of product quality and the large-scale, automated production of related products. Therefore, it is necessary to improve peanut impurity removal equipment.
[0003] The prior art CN201921212423.4 discloses a peanut kernel screening device. This screening device is easy to move, has high screening efficiency, good dust and impurity removal effect, and can also effectively distinguish peanut kernels according to different kernel sizes.
[0004] The prior art CN202322170032.3 discloses a peanut impurity removal machine. Through the coordinated design of various structures, it can remove solid particulate impurities such as small pebbles and peanut fragments mixed in peanuts, as well as light impurities such as peanut skins. The impurities can be removed cleanly in one operation, which is simple and efficient.
[0005] In the aforementioned prior art, vibration can achieve the corresponding impurity treatment, but the particle size of the impurities it can treat is limited. The removal effect on soil clods similar in size to peanuts and lightweight straw is limited, resulting in incomplete impurity removal. Utility Model Content
[0006] The core of this invention lies in the use of a stepped arrangement of two sieve plates (number one and number two) and a vibrating motor to shake them, thereby efficiently separating peanut raw materials from various impurities and solving the problem of incomplete impurity removal in existing technologies. Simultaneously, the cooperation of an electric actuator, push rod, movable baffle, and impurity collection frame ensures stable and continuous operation of the suction box.
[0007] To solve the above problems, the present invention adopts the following technical solution.
[0008] A stepped double-layer vibrating peanut impurity removal bed includes a first screen plate with internal sieve holes and a second screen plate located below one end of the first screen plate. A first storage trough and a second storage trough are respectively installed at the bottom of the first and second screen plates. Spring telescopic columns are connected to the bottom of both the first and second storage troughs. A frame is connected to the bottom of each spring telescopic column, and a shock-absorbing pad is installed at the bottom of each frame. A baffle is fixedly connected to the surface of the frame, and a vibrating motor is installed on the top surface of the baffle. A [missing information - likely a device or mechanism] is installed on the outer side of the first and second screen plates. A dustproof frame is provided, with its inner wall surface connected to the end surface of the baffle. A suction box is installed on the top of the dustproof frame, and a suction channel with an L-shaped cross-section extending into the dustproof frame is installed through the surface of the suction box. Impurity collection frame 2 and material collection frame are installed at the bottom of storage tank 1 and storage tank 2, respectively. A sieve plate 3 is installed inside the material collection frame. Impurity collection frame 1 is arranged below the side of sieve plate 2 away from sieve plate 1. A feed frame is installed through one inner wall of the dustproof frame, and the outlet of the feed frame is located above sieve plate 1.
[0009] Furthermore, both the No. 1 sieve plate and the No. 2 sieve plate are arranged at a downward angle, and the diameter of the sieve holes inside the No. 1 sieve plate is smaller than the diameter of the sieve holes inside the No. 2 sieve plate.
[0010] Furthermore, the front of the dustproof frame has two inspection windows with glass viewing windows, and both inspection windows are equipped with handles.
[0011] Furthermore, a fan and a filter screen located above the fan are installed on the inner wall of the suction box, and brackets are installed on both sides of the filter screen, with the surface of the brackets fixedly connected to the inner wall surface of the suction box.
[0012] Furthermore, a rectangular groove is provided on the rear wall of the suction box, and a shaft is installed on the inner wall of the rectangular groove near the top. A movable baffle is installed on the surface of the shaft. An impurity collection frame is installed on one side of the outer wall of the suction box. The cross-sectional length of the rectangular groove and the filter screen are the same.
[0013] Optionally, an electric actuator is installed through the inner wall of the suction box, and the power end of the electric actuator is connected to a push plate with a cross-sectional height not greater than the cross-sectional height of the rectangular groove.
[0014] Furthermore, the top of the filter screen is located above the bottom wall of the rectangular trough, and a slope plate is installed on the inner wall of the impurity collection frame three, with the top of the slope plate flush with the bottom wall of the rectangular trough.
[0015] Furthermore, the push plate is made of permanent magnet, and an electromagnetic block that attracts the push plate is installed on the top wall of the suction box near the electric push rod. The push plate and the power end of the electric push rod are slidably connected.
[0016] Compared with existing technologies, the advantages of this utility model are:
[0017] (1) In this application, the No. 1 and No. 2 screen plates are arranged in a stepped manner, and the vibration motor is used to shake the two screen plates to achieve efficient separation of peanut raw materials and various impurities. The screen holes in the No. 1 screen plate are small to remove small impurities such as sand and soil. The screen holes in the No. 2 screen plate are large so that peanuts can pass through the screen and be collected. The No. 3 screen plate can be used to separate the peanuts entering the collection box and the broken soil clods, so as to achieve high-quality screening. Large impurities slide into the impurity collection box at the end. In addition, the blower continuously sucks up light floating impurities. Combined with the slope design, the material flows smoothly, so as to achieve graded removal of peanuts and various impurities.
[0018] (2) By adding an electric push rod and a push plate, the light impurities accumulated on the surface of the filter screen can be cleaned automatically on a regular basis to prevent the filter screen from clogging and ensure the continuous suction of light impurities. The electric push rod pushes the push plate to push the impurities to the movable baffle and then into the impurity collection frame 3. The slope plate assists the impurities to slide off, maintains the suction efficiency of the fan, reduces manual maintenance, and improves the stability of continuous operation of the equipment. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the internal structure of the dustproof frame of this utility model;
[0021] Figure 3 This is a schematic diagram of the No. 3 sieve plate and the material collection frame of this utility model;
[0022] Figure 4 This is a structural schematic diagram of the three impurity collection frames and the dustproof frame of this utility model;
[0023] Figure 5 This is a schematic diagram of the internal structure of the suction box of this utility model;
[0024] Figure 6 This is a schematic diagram of the slope plate of this utility model;
[0025] Figure 7 This is a diagram showing the state of lightweight impurities on the filter screen surface entering the impurity collection frame 3 of this utility model.
[0026] Figure 8 This is a cross-sectional view of the suction box of this utility model;
[0027] Figure 9 This is a top view of the push plate and the power end of the electric actuator of this utility model.
[0028] Figure 10 This is a schematic diagram showing how the push plate of this utility model moves upward when it moves to the electromagnetic block area during the retraction and reset of the electric push rod, so as to avoid the accumulation of impurities and the formation of dead corners.
[0029] Explanation of the labels in the diagram:
[0030] 1. Frame; 2. Shock-absorbing pad; 3. Dustproof frame; 31. Inspection window; 4. Feed frame; 5. Suction box; 51. Suction channel; 52. Fan; 53. Support; 54. Filter screen; 6. Impurity collection frame one; 7. Spring telescopic column; 8. Vibration motor; 9. Impurity collection frame two; 10. Storage tank one; 11. Screen plate one; 12. Screen plate two; 13. Storage tank two; 14. Collection frame; 15. Impurity collection frame three; 16. Electric actuator; 17. Push plate; 18. Movable baffle; 19. Slope plate; 20. Baffle; 21. Screen plate three; 22. Electromagnetic block. Detailed Implementation
[0031] The technical solution will now be clearly and completely described with reference to the accompanying drawings in the embodiments of this utility model.
[0032] Example 1:
[0033] Please see Figures 1-3 A stepped double-layer vibrating peanut impurity removal bed includes a first screen plate 11, both with internal sieve holes, and a second screen plate 12 located below one end of the first screen plate 11. A first storage trough 10 and a second storage trough 13 are respectively installed at the bottom of the first screen plate 11 and the second screen plate 12. Spring telescopic columns 7 are connected to the bottom of both the first storage trough 10 and the second storage trough 13. A frame 1 is connected to the bottom of each spring telescopic column 7, and a shock-absorbing pad 2 is installed at the bottom of each frame 1. A baffle 20 is fixedly connected to the surface of the frame 1, and a vibrating motor 8 is installed on the top surface of the baffle 20. A vibration motor 8 is installed on the outer side of the first screen plate 11 and the second screen plate 12. The dustproof frame 3 is equipped with a dustproof frame 3, and the inner wall surface of the dustproof frame 3 is connected to the end surface of the baffle 20. A suction box 5 is installed on the top of the dustproof frame 3, and a suction channel 51 with an L-shaped cross section and the tail end extending into the interior of the dustproof frame 3 is installed through the surface of the suction box 5. Impurity collection frame 2 9 and material collection frame 14 are installed at the bottom of the first storage tank 10 and the second storage tank 13, respectively. A third sieve plate 21 is installed inside the material collection frame 14. An impurity collection frame 1 6 is arranged below the side of the second sieve plate 12 away from the first sieve plate 11. A feed frame 4 is installed through one side of the inner wall of the dustproof frame 3, and the outlet of the feed frame 4 is located above the first sieve plate 11.
[0034] Please see Figure 2 Both the No. 1 sieve plate 11 and the No. 2 sieve plate 12 are arranged at a downward inclination, and the diameter of the sieve holes inside the No. 1 sieve plate 11 is smaller than the diameter of the sieve holes inside the No. 2 sieve plate 12.
[0035] Please see Figure 1The dustproof frame 3 has two inspection windows 31 with glass windows on the front (which can be opened for internal inspection and maintenance), and both inspection windows 31 are equipped with handles.
[0036] Please see Figures 5-6 The inner wall of the suction box 5 is equipped with a fan 52 and a filter screen 54 located above the fan 52. Both sides of the filter screen 54 are equipped with brackets 53, and the surface of the brackets 53 is fixedly connected to the inner wall surface of the suction box 5.
[0037] Please see Figures 4-6 The rear wall of the suction box 5 has a rectangular groove, and a shaft is installed on the inner wall of the rectangular groove near the top. A movable baffle 18 is installed on the surface of the shaft. An impurity collection frame 3 15 is installed on one side of the outer wall of the suction box 5. The rectangular groove and the filter screen 54 have the same cross-sectional length.
[0038] Specifically, in this application, the first sieve plate 11 is inclined at about 7 degrees, and the diameter of the sieve holes on it is 3 mm; the second sieve plate 12 is inclined at about 4 degrees and is located about 150 mm below the first sieve plate 11, forming a stepped drop, and the diameter of the sieve holes on it is 11 mm.
[0039] During the peanut impurity removal operation, the peanut raw material is poured into the feed frame 4, and two vibrating motors 8 are started simultaneously (in this application, the two vibrating motors 8 are respectively installed below the first screen plate 11 and the second screen plate 12, causing the first screen plate 11 and the second screen plate 12 to shake, and the model of the vibrating motor 8 is YZS-20-6, but other models can also be selected, and it is not fixed. During operation, its working status is controlled by the control button), so that the peanuts mixed with impurities fall onto the surface of the first screen plate 11. During this process, small impurities such as sand in the impurities enter the interior of the first storage tank 10 through the screen holes on the surface of the first screen plate 11, and then enter the second impurity collection frame 9. Then the peanut kernels and larger impurities are shaken. The peanuts move forward and fall from the end of the first screen plate 11 to the surface of the second screen plate 12. This falling process helps to further disperse the material. Then, the peanuts pass through the sieve holes on the surface of the second screen plate 12 and fall into the collection frame 14 below. In order to prevent the soil clods from breaking apart due to shaking while moving along the surface of the second screen plate 12 and falling into the collection frame 14 with the help of the third screen plate 21, the peanuts and broken soil clods in the collection frame 14 can be separated. Since large impurities such as soil clods cannot pass through the sieve and their weight is slightly greater than that of peanuts, they slide along the second screen plate 12 to the end of the second screen plate 12 and are collected by the impurity collection frame 6 below. The peanuts in the collection frame 14 are lifted by the bucket elevator (not shown in the figure) and transported to the discharge end and poured into the multi-head packaging scale to complete the quantitative packaging.
[0040] Throughout the process, the suction fan 52 works continuously, sucking away light impurities, which are then drawn into the suction box 5 through the suction channel 51 and intercepted by the filter screen 54, thereby achieving the removal of various impurities from the peanut raw material.
[0041] In addition, in this application, both the No. 1 storage tank 10 and the No. 2 storage tank 13 are made of stainless steel and have a certain slope at the bottom, which facilitates the smooth entry of the materials in the No. 1 storage tank 10 and the No. 2 storage tank 13 into the interior of the impurity collection frame 2 9 and the material collection frame 14.
[0042] Example 2:
[0043] Please see Figures 5-7 An electric push rod 16 is installed through the inner wall of the suction box 5, and the power end of the electric push rod 16 is connected to a push plate 17 with a cross-sectional height value not greater than the cross-sectional height value of the rectangular groove.
[0044] Please see Figure 8 The top of the filter screen 54 is located above the bottom wall of the rectangular trough. The inner wall of the impurity collection frame 15 is equipped with a slope plate 19, and the top of the slope plate 19 is flush with the bottom wall of the rectangular trough.
[0045] Specifically, to prevent light impurities accumulating on the surface of filter screen 54 from clogging it and affecting the subsequent suction and cleaning capacity of fan 52, electric push rod 16 (model JPT-37 or other models, not fixed; electric push rod 16 is equipped with a control button, which is manually controlled to operate the extension and retraction of electric push rod 16) can be activated periodically. When it extends, it can push the light impurities on the surface of filter screen 54 towards the movable baffle 18, and then drive the movable baffle 18 to deflect towards the impurity collection frame 3 15, so that the light impurities can enter the interior of impurity collection frame 3 15 through the rectangular groove, and fall to the bottom of impurity collection frame 3 15 under the action of slope plate 19.
[0046] Please see Figures 8-9 The push plate 17 is made of permanent magnet, and an electromagnetic block 22 that attracts the push plate 17 is installed on the top wall of the suction box 5 near the electric push rod 16. The push plate 17 and the power end of the electric push rod 16 are slidably connected.
[0047] Specifically, when the push plate 17 moves towards the movable baffle 18 and pushes to clean the surface of the filter screen 54, the suction box 5 works normally. Therefore, during the reset process of the push plate 17, newly accumulated light impurities will be pushed and gathered to the surface of the filter screen 54 near the electric push rod 16. When it moves back towards the movable baffle 18 for cleaning in the future, it will create dead corners, which is not conducive to achieving a comprehensive cleaning of the surface of the filter screen 54.
[0048] To improve this problem, please refer to [link / reference] in this application. Figure 10When the push plate 17 moves to the area near the surface of the filter screen 54 and close to the electric push rod 16 (that is, when it is within the effective projection area of the electromagnetic block 22), the electromagnetic block 22 is activated, causing the push plate 17 to move upward until the top of the push plate 17 contacts the bottom of the electromagnetic block 22. After a gap is formed between the push plate 17 and the top surface of the filter screen 54, the push plate 17 continues to move away from the movable baffle 18 under the action of the electric push rod 16 until the surface of the push plate 17 contacts the inner wall surface of the suction box 5 where the electric push rod 16 is installed. Then the electromagnetic block 22 closes, the push plate 17 moves downward to contact the surface of the filter screen 54, and waits for the next round of pushing and cleaning operation, which can avoid cleaning residue.
[0049] The above description is merely a preferred embodiment of this utility model; it encompasses all the protection scope of this utility model. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be covered within the protection scope of this utility model.
Claims
1. A stepped double-layer vibration peanut impurity removal bed, comprising a No. 1 sieve plate (11) and a No. 2 sieve plate (12) located below one end of the No. 1 sieve plate (11), wherein the No. 1 sieve plate (11) and the No. 2 sieve plate (12) are both provided with sieve holes. The bottom of the first sieve plate (11) and the second sieve plate (12) is respectively provided with a first storage tank (10) and a second storage tank (13), the bottom of the first storage tank (10) and the second storage tank (13) is connected with a spring telescopic column (7), the bottom of each spring telescopic column (7) is connected with a rack (1), the bottom of each rack (1) is provided with a damping pad (2), the surface of the rack (1) is fixedly connected with a baffle (20), the top surface of the baffle (20) is provided with a vibration motor (8), the outer side of the first sieve plate (11) and the second sieve plate (12) is provided with a dustproof frame (3), the inner wall surface of the dustproof frame (3) is connected with the end surface of the baffle (20), the top of the dustproof frame (3) is provided with a suction box (5), the surface of the suction box (5) is provided with a suction channel (51) with an L-shaped cross section and an extended tail end inside the dustproof frame (3), the bottom of the first storage tank (10) and the second storage tank (13) is respectively provided with a second impurity collecting frame (9) and a material collecting frame (14), the inside of the material collecting frame (14) is provided with a third sieve plate (21), the lower side of the second sieve plate (12) away from the first sieve plate (11) is provided with a first impurity collecting frame (6), the inner wall of one side of the dustproof frame (3) is provided with a feeding frame (4), and the outlet of the feeding frame (4) is located above the first sieve plate (11).
2. The stepped double-decker vibrated peanut impurity removing bed according to claim 1, characterized in that: The first sieve plate (11) and the second sieve plate (12) are both arranged downwardly inclined, and the diameter of the sieve hole in the first sieve plate (11) is smaller than that of the sieve hole in the second sieve plate (12).
3. The stepped double deck vibratory peanut cleaning bed of claim 1, wherein: The front surface of the dustproof frame (3) is provided with two maintenance windows (31) with glass windows, and the surface of each maintenance window (31) is provided with a handle.
4. The stepped double deck vibratory peanut cleaner of claim 1, wherein: The inner wall of the suction box (5) is provided with a fan (52) and a filter screen (54) above the fan (52), the surface of each side of the filter screen (54) is provided with a support (53), and the surface of the support (53) is fixedly connected with the inner wall surface of the suction box (5).
5. The stepped double deck vibratory peanut cleaner of claim 4, wherein: The rear wall of the suction box (5) is provided with a rectangular groove, and the inner wall of the rectangular groove is provided with a shaft rod near the top end, the surface of the shaft rod is provided with a movable baffle (18), one side of the suction box (5) is provided with a third impurity collecting frame (15), and the cross-sectional length of the rectangular groove and the filter screen (54) is the same.
6. The stepped double deck vibratory peanut cleaner of claim 5, wherein: The inner wall of the suction box (5) is provided with an electric push rod (16), and the power end of the electric push rod (16) is connected with a push plate (17) with a cross-sectional height not greater than that of the rectangular groove.
7. The stepped double deck vibratory peanut cleaner of claim 5, wherein: The top of the filter screen (54) is above the bottom wall of the rectangular groove, the inner wall of the third impurity collecting frame (15) is provided with a slope plate (19), and the top of the slope plate (19) is flush with the bottom wall of the rectangular groove.
8. The stepped double deck vibratory peanut cleaner of claim 6, wherein: The push plate (17) is made of a permanent magnet, and the inner top wall of the suction box (5) is provided with an electromagnetic block (22) near the position of the electric push rod (16), which is attracted to the push plate (17), and the power end of the push plate (17) and the electric push rod (16) are in sliding connection.
Citation Information
Patent Citations
Peanut kernel screening device
CN210304571U
Peanut impurity removing machine
CN220697489U