A sorting device for wheat processing

Abstract

The utility model discloses a sorting device for wheat processing, including sorting box, feed hopper, upper guide plate, lower guide plate, sorting fan, dust collection mechanism and screening mechanism, through setting up upper guide plate and lower guide plate, can guide the wheat that feed hopper falls down and disperses and slides, make the wheat distribution more evenly in the sorting process, make subsequent sorting fan and dust collection mechanism better play the role, improve the overall nature and accuracy of sorting and impurity removal, two groups of symmetrical sorting fan and dust collection mechanism intercoordination, the airflow of sorting fan blows the wheat that disperses and slides and makes the impurity and wheat separate, and dust collection mechanism then in time will separate out the impurity and inhale, the design of dust collection cover, dust collection shell and protective grating has effectively expanded the dust collection range, and the protective grating can prevent the wheat from being inhaled, ensures the smooth progress of the dust collection process, and greatly improves the efficiency of sorting and impurity removal.

Description

Technical Field

[0001] This utility model relates to the field of wheat processing technology, specifically to a sorting device for wheat processing. Background Technology

[0002] In wheat production, harvested wheat contains a large amount of impurities such as mud, weeds, and stones. Therefore, people often need a variety of equipment to remove impurities and sort the harvested wheat to obtain clean wheat without impurities. The wheat is then sieved to remove the shriveled wheat.

[0003] For example, patent document CN213316219U discloses a wheat processing and sorting device, including a sorting seat. The sorting seat includes a horizontal support part and vertical parts located at the front and rear ends of the horizontal support part. A C-shaped plate is fixedly connected to the center of the right side wall of the horizontal support part, and a feeding hopper is assembled on the top of the C-shaped plate. The feeding hopper is fixedly connected to the top left side of the C-shaped plate by two support rods spaced apart at the front and rear. An air separation component is assembled on the top right side of the C-shaped plate, and the air separation component blows air to screen the material. A sieving component that cooperates with the air separation component is slidably connected between the vertical parts. The sieving component includes a screen frame slidably connected between the vertical parts. The left end of the C-shaped plate is located above the screen frame. A screen mesh is fixedly connected to the bottom of the screen frame. The sieving component also includes a driving component for driving the screen frame.

[0004] Based on the search of the aforementioned patents and the findings of existing equipment, it is discovered that when air-separating impurities from wheat materials, the aforementioned equipment cannot allow the wheat to fall freely in a single-layer waterfall pattern. This results in the high-speed airflow during air separation not evenly covering all the wheat materials, causing some wheat materials to be blown into the impurities by the high-speed airflow, while other wheat materials cannot be thoroughly blown by the high-speed airflow, making it impossible to remove the impurities mixed in. Furthermore, the wheat materials are not sieved again after air separation, resulting in the inability to remove impurities such as stones and soil, leading to poor separation effect. Therefore, we need to propose a sorting device for wheat processing. Utility Model Content

[0005] The purpose of this utility model is to provide a sorting device for wheat processing. By cooperating with a sorting fan and a dust collection mechanism, wheat that has been guided and dispersed by the upper and lower guide plates can be sorted to remove impurities such as grass leaves, straw fragments and dust mixed in with the wheat. The wheat is then screened by a screening mechanism to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A wheat sorting device includes a sorting box, a feeding hopper, an upper guide plate, a lower guide plate, a sorting fan, a dust collection mechanism, and a screening mechanism. The feeding hopper is fixedly installed at the top center of the sorting box. The upper guide plate and the lower guide plate are fixedly installed on the inner wall of the sorting box to guide the wheat falling from the feeding hopper to disperse and slide down.

[0008] The sorting fans are arranged in two symmetrical sets, and the two sets of sorting fans are fixedly installed on one side wall of the sorting box. The dust collection mechanism is set on the other side wall of the sorting box and is used to cooperate with the sorting fans to sort and remove impurities from the scattered and falling wheat. The screening mechanism is set below the lower guide plate to facilitate screening of the sorted and impurity-removed wheat.

[0009] Preferably, the dust collection mechanism includes a dust collection box, which is fixedly installed on the top of the sorting box. The air inlet of the dust collection box is fixedly connected to a dust collection hood through a pipe, and the air outlet of the dust collection box is fixedly connected to a suction shell. A dust collection fan is fixedly installed on one side of the suction shell, and a filter screen is fixedly installed at the air inlet of the suction shell.

[0010] Preferably, one side of the dust collection hood is fixedly connected to a dust collection shell, and one side of the dust collection shell passes through the sorting box and is fixedly installed with a protective grille.

[0011] Preferably, a slot is provided on one side of the collection box, and a discharge box is inserted into the slot.

[0012] Preferably, the screening mechanism includes an upper mounting frame, which is fixedly installed at an angle on the inner wall of the sorting box. A small screening screen for screening impurities smaller than wheat is fixedly installed inside the upper mounting frame. A sliding plate for guiding impurities is fixedly installed at one bottom end of the upper mounting frame. A channel for wheat to slide down is reserved between the side of the sliding plate connected to the upper mounting frame and the inner wall of the sorting box.

[0013] Preferably, the screening mechanism further includes a lower mounting frame, which is fixedly installed at an incline on the inner wall of the sorting box. A large screening screen for screening impurities larger than wheat volume is fixedly installed inside the lower mounting frame, and a vibration motor is fixedly installed at the bottom of the inclined upper and lower mounting frames.

[0014] Preferably, two sets of waste discharge channels are fixedly installed on one side of the sorting box. One set of waste discharge channels is located at the inclined lower end of the lower slide plate, and the other set of waste discharge channels is located at the inclined lower end of the lower mounting frame. A sealing plate is inserted into the top of the waste discharge channels.

[0015] Preferably, the bottom of the sorting box is provided with a pull-out receiving box, and the side wall of the sorting box is provided with a discharge groove for inserting the receiving box.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model, by setting up upper and lower guide plates, can guide the wheat falling from the hopper to disperse and slide down, making the wheat more evenly distributed during the sorting process. This facilitates the subsequent sorting fans and dust collection mechanism to play a better role, improving the comprehensiveness and accuracy of sorting and impurity removal. The two sets of symmetrically arranged sorting fans and dust collection mechanism work together. The airflow generated by the sorting fans blows the dispersed wheat, separating impurities from the wheat, while the dust collection mechanism promptly sucks away the separated impurities. The design of the dust collection hood, impurity collection shell, and protective grille effectively expands the dust collection range, while the protective grille prevents wheat from being sucked in, ensuring the smooth progress of the dust collection process and greatly improving the efficiency of sorting and impurity removal.

[0018] 2. The small and large screening screens in the screening mechanism screen impurities smaller and larger than the wheat volume respectively, achieving comprehensive cleaning of impurities of different sizes in the wheat and improving the purity of the wheat. The upper and lower mounting frames are installed at an angle, which facilitates the natural sliding of impurities and wheat after screening under the action of gravity. At the same time, the setting of the vibration motor can provide additional vibration power to accelerate the screening process, prevent impurities and wheat from accumulating on the screening screen, and improve screening efficiency. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention viewed from the front;

[0020] Figure 2 This is a side view of the three-dimensional structure of the present invention;

[0021] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0022] Figure 4 This is a schematic diagram of the screening mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram of the dust collection mechanism of this utility model.

[0024] In the diagram: 1. Sorting box; 2. Feed hopper; 3. Upper guide plate; 4. Lower guide plate; 5. Sorting fan; 6. Dust collection mechanism; 61. Collection box; 62. Dust hood; 63. Suction shell; 64. Dust collection fan; 65. Filter screen; 66. Discharge box; 67. Suction shell; 68. Protective grille; 7. Screening mechanism; 71. Upper mounting frame; 72. Small screening screen; 73. Lower sliding plate; 74. Lower mounting frame; 75. Large screening screen; 76. Vibrating motor; 8. Discharge channel; 9. Enclosure plate; 10. Receiving box. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-5 This utility model provides a technical solution:

[0027] A wheat sorting device includes a sorting box 1, a feeding hopper 2, an upper guide plate 3, a lower guide plate 4, a sorting fan 5, a dust collection mechanism 6, and a screening mechanism 7. The feeding hopper 2 is fixedly installed at the top center of the sorting box 1. The upper guide plate 3 and the lower guide plate 4 are fixedly installed on the inner wall of the sorting box 1 in a corresponding manner to guide the wheat falling from the feeding hopper 2 to disperse and slide down.

[0028] The sorting box 1 serves as the core load-bearing structure and adopts a sealed design to prevent dust from spilling out. The feed hopper 2 is located at the top center position to ensure that wheat falls evenly into the sorting area. Its flared opening can reduce material impact and avoid blockage. The sealed structure reduces dust, meets environmental protection requirements, and reduces material loss.

[0029] The upper guide plate 3 and the lower guide plate 4 are installed at an angle in an alternating manner to form a multi-layer sliding channel, which fully disperses the wheat during the sliding process. A wear-resistant coating can be added to the surface of the guide plate to extend its service life.

[0030] Two sets of sorting fans 5 are arranged symmetrically. The two sets of sorting fans 5 are fixedly installed on one side wall of the sorting box 1. The dust collection mechanism 6 is set on the other side wall of the sorting box 1 and is used to cooperate with the sorting fans 5 to sort and remove impurities from the scattered wheat. The screening mechanism 7 is set below the lower guide plate 4 to facilitate screening of the wheat after sorting and removing impurities.

[0031] The sorting fan 5, model: YWF4D-400 (AC centrifugal fan), power: 0.75~1.5 kW (adjustable), air volume: 800~1500 m³ / h, air pressure: 800~1200 Pa, multi-layer guide plates extend the falling path of wheat, increase the action time of the sorting fan 5 and the dust collection mechanism 6, the dispersed design avoids wheat accumulation, and improves the separation accuracy of impurities. The sorting fan 5 is set at an angle, which is convenient to cooperate with the lower guide plate 4 to sort the wheat on its surface. The sorting fan 5 is symmetrically arranged to generate horizontal airflow, which blows light impurities (such as wheat husks and dust) toward the dust collection mechanism 6, and the wheat sinks due to its own weight.

[0032] Furthermore, the dust collection mechanism 6 includes a dust collection box 61, which is fixedly installed on the top of the sorting box 1. The air inlet of the dust collection box 61 is fixedly connected to a dust collection hood 62 through a pipe, and the air outlet of the dust collection box 61 is fixedly connected to a suction shell 63. A dust collection fan 64 is fixedly installed on one side of the suction shell 63, and a filter screen 65 is fixedly installed at the air inlet of the suction shell 63.

[0033] The vacuum cleaner fan 64, model CX-75A (industrial vacuum cleaner fan), has a power of 2.2 kW, an air volume of 2000 m³ / h, and a negative pressure of -2000 Pa. The vacuum cleaner fan 64 generates negative pressure, drawing impurities into the collection box 61. The filter screen 65 blocks impurities from entering the suction housing 63, protecting the fan and maintaining stable airflow. The filter screen 65 is made of removable stainless steel mesh for easy cleaning and prevents impurities from flowing back, ensuring cleaning efficiency. The vacuum cleaner fan 64 uses frequency conversion control, allowing for adjustable airflow to accommodate different impurity contents. This adjustable airflow design improves energy efficiency and reduces operating costs.

[0034] Specifically, a dust collection hood 62 is fixedly connected to a dust collection shell 67 on one side, and a protective grille 68 is fixedly installed on one side of the dust collection shell 67 through the sorting box 1.

[0035] The dust collection mechanism 6 uses a dust collection hood 62, a dust collection shell 67, and a protective grille 68 to adsorb impurities in the airflow. The protective grille 68 prevents large particles of impurities from entering the dust collection pipe.

[0036] Specifically, a slot is provided on one side of the collection box 61, and a discharge box 66 is inserted into the slot.

[0037] The modular discharge box 66 is easy to maintain. The removed impurities are temporarily stored in the discharge box 66 of the collection box 61, which is easy to remove and clean periodically.

[0038] Furthermore, the screening mechanism 7 includes an upper mounting frame 71, which is fixedly installed at an angle on the inner wall of the sorting box 1. A small screening screen 72 for screening impurities smaller than wheat is fixedly installed inside the upper mounting frame 71. A sliding plate 73 for guiding impurities is fixedly installed at the bottom of one end of the upper mounting frame 71. A channel for wheat to slide down is reserved between the side of the connection between the sliding plate 73 and the upper mounting frame 71 and the inner wall of the sorting box 1.

[0039] Small sieve mesh 72 (e.g., 20 mesh) removes small impurities such as sand and gravel, while large sieve mesh 75 (e.g., 8 mesh) separates large impurities such as straw. The two-stage sieve process achieves simultaneous removal of impurities of multiple particle sizes, improving the purity of the finished wheat product.

[0040] Furthermore, the screening mechanism 7 also includes a lower mounting frame 74, which is fixedly installed at an incline on the inner wall of the sorting box 1. A large screening screen 75 for screening impurities larger than wheat volume is fixedly installed inside the lower mounting frame 74, and a vibration motor 76 is fixedly installed at the bottom of the inclined upper mounting frame 71 and the lower mounting frame 74.

[0041] Vibration motor model 76: YZU-10-6 (horizontal vibration motor), power: 0.12 kW×2 (two units, one for the upper and one for the lower screen), vibration frequency: 1500 times / minute, excitation force: 10 kN. The vibration motor 76 prevents screen clogging through high-frequency micro-amplitude vibration. The inclined design utilizes gravity to assist in material discharge. The vibration motor 76 significantly improves screening efficiency and is especially suitable for high-moisture materials.

[0042] Specifically, two sets of waste discharge channels 8 are fixedly installed on one side of the sorting box 1. One set of waste discharge channels 8 is located at the inclined lower end of the lower slide plate 73, and the other set of waste discharge channels 8 is located at the inclined lower end of the lower mounting frame 74. A sealing plate 9 is inserted into the top of the waste discharge channels 8.

[0043] The waste removal channels 8 correspond to small impurities (outlet of lower slide plate 73) and large impurities (outlet of lower mounting frame 74). The sealing plate 9 is made of transparent material, which makes it easy to observe the accumulation of impurities and clean them in time. Classified waste removal avoids secondary pollution. The transparent sealing plate 9 simplifies the maintenance process. The inclined channel design utilizes gravity for self-drainage, reducing manual intervention.

[0044] Specifically, the bottom of the sorting box 1 is provided with a pull-out receiving box 10, and the side wall of the sorting box 1 is provided with a discharge groove for inserting the receiving box 10.

[0045] The bottom of the receiving box 10 is equipped with pulleys, which can be quickly pulled out through the discharge chute on the side wall of the sorting box 1. A moisture-proof liner can be added inside the box to ensure the quality of wheat storage. The pull-out design facilitates the centralized collection and transfer of finished wheat, and the moisture-proof design extends the storage time, making it suitable for continuous production scenarios.

[0046] Working principle: When this utility model is used, wheat is put into the sorting box 1 through the feeding hopper 2. The upper guide plate 3 and the lower guide plate 4 are fixed at a certain angle to the inner wall of the sorting box 1 to form a double-layer guide channel. After being guided by the guide plates, the wheat slides down in a dispersed manner under the action of gravity to avoid accumulation and ensure the subsequent sorting effect. Two sets of symmetrically distributed sorting fans 5 are started to form a directional airflow in the sorting box 1. The sliding wheat is affected by the airflow, and light impurities (such as straw and dust) are blown towards the dust suction mechanism 6. The wheat sinks due to its own weight.

[0047] The dust collection mechanism 6 adsorbs impurities in the airflow through the dust collection hood 62, the dust collection shell 67 and the protective grille 68. The dust collection fan 64 generates negative pressure to suck the impurities into the dust collection box 61. The filter screen 65 blocks the impurities from entering the suction shell 63, protects the fan and maintains stable airflow. The suctioned impurities are temporarily stored in the dust discharge box 66 of the dust collection box 61 and are periodically removed and cleaned.

[0048] After sorting, the wheat falls onto the surface of the small screening screen 72 inside the upper mounting frame 71. The vibrating motor 76 drives the small screening screen 72 to vibrate. Impurities smaller than the wheat (such as gravel and debris) pass through the screen and slide down the lower slide plate 73 to the corresponding waste discharge channel 8. The wheat after preliminary screening falls onto the surface of the large screening screen 75 inside the lower mounting frame 74. The vibrating motor 76 drives the large screening screen 75 to vibrate. Impurities larger than the wheat (such as stones and straw clumps) are intercepted and slide down the lower mounting frame 74 to the corresponding waste discharge channel 8. The screened wheat falls through the screen into the bottom of the sorting box 1 and is collected by the pull-out collection box 10.

[0049] Small impurity discharge: The impurity discharge channel 8 at the end of the sliding plate 73 collects the impurities screened out by the small screening screen 72.

[0050] Large impurity discharge: The impurity discharge channel 8 at the end of the lower mounting frame 74 collects the impurities intercepted by the large screening screen 75.

[0051] Channel control: The top sealing plate 9 of the impurity discharge channel 8 can be opened or closed flexibly to prevent impurities from overflowing.

[0052] The control method of the sorting fan, dust extraction fan and vibration motor in this application is to automatically control them through a controller. The control circuit of the controller can be implemented by a person skilled in the art through simple programming, which is common knowledge in the field. Furthermore, this application is mainly used to protect the structure, shape and their combination, so the control method and circuit connection will not be explained in detail in this application.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sorting device for wheat processing, characterized in that, It includes a sorting box (1), a feeding hopper (2), an upper guide plate (3), a lower guide plate (4), a sorting fan (5), a dust collection mechanism (6), and a screening mechanism (7). The feeding hopper (2) is fixedly installed at the top center of the sorting box (1). The upper guide plate (3) and the lower guide plate (4) are fixedly installed on the inner wall of the sorting box (1) to guide the wheat falling from the feeding hopper (2) to disperse and slide down. The sorting blowers (5) are arranged in two symmetrical groups. The two groups of sorting blowers (5) are fixedly installed on one side wall of the sorting box (1). The dust collection mechanism (6) is set on the other side wall of the sorting box (1) and is used to cooperate with the sorting blowers (5) to sort and remove impurities from the scattered wheat. The screening mechanism (7) is set below the lower guide plate (4) to facilitate screening of the wheat after sorting and removing impurities.

2. The wheat processing sorting device according to claim 1, characterized in that: The dust collection mechanism (6) includes a dust collection box (61), which is fixedly installed on the top of the sorting box (1). The air inlet of the dust collection box (61) is fixedly connected to a dust collection hood (62) through a pipe. The air outlet of the dust collection box (61) is fixedly connected to a suction shell (63). A dust collection fan (64) is fixedly installed on one side of the suction shell (63), and a filter screen (65) is fixedly installed at the air inlet of the suction shell (63).

3. A wheat sorting device according to claim 2, characterized in that: The dust hood (62) is fixedly connected to a dust collection shell (67) on one side, and a protective grille (68) is fixedly installed on one side of the dust collection shell (67) through the sorting box (1).

4. A wheat sorting device according to claim 2, characterized in that: The collection box (61) has a slot on one side, and a discharge box (66) is inserted into the slot.

5. A wheat sorting device according to claim 1, characterized in that: The screening mechanism (7) includes an upper mounting frame (71), which is fixedly installed at an angle on the inner wall of the sorting box (1). A small screening screen (72) for screening impurities smaller than wheat volume is fixedly installed inside the upper mounting frame (71). A sliding plate (73) for guiding impurities is fixedly installed at the bottom of one end of the upper mounting frame (71). A channel for wheat to slide down is reserved between the side of the connection between the sliding plate (73) and the upper mounting frame (71) and the inner wall of the sorting box (1).

6. A wheat sorting device according to claim 5, characterized in that: The screening mechanism (7) also includes a lower mounting frame (74), which is fixedly installed on the inner wall of the sorting box (1) at an incline. A large screening screen (75) for screening impurities larger than wheat volume is fixedly installed inside the lower mounting frame (74), and a vibration motor (76) is fixedly installed at the bottom of the inclined upper mounting frame (71) and the lower mounting frame (74).

7. A wheat sorting device according to claim 6, characterized in that: Two sets of waste discharge channels (8) are fixedly installed on one side of the sorting box (1). One set of waste discharge channels (8) is located at the inclined lower end of the lower slide plate (73), and the other set of waste discharge channels (8) is located at the inclined lower end of the lower mounting frame (74). A sealing plate (9) is inserted into the top of the waste discharge channel (8).

8. A wheat sorting device according to claim 1, characterized in that: The bottom of the sorting box (1) is provided with a pull-out receiving box (10), and the side wall of the sorting box (1) is provided with a discharge groove for the receiving box (10) to be inserted.

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