Raw grain cleaning and impurity removing device

Abstract

The utility model provides an unprocessed grain cleaning and impurity removing device, which belongs to the technical field of grain processing equipment and is characterized in that a motor and an intelligent controller are mounted on the upper surface of a top plate, a crushing box is arranged on the lower surface of the top plate, and a rotating shaft is arranged in the crushing box and penetrates through the top of the crushing box and the top plate to be connected with the output end of the motor; blades are longitudinally mounted on the rotating shaft at equal intervals; a first discharging pipe is arranged at the bottom of the smashing box, an impurity removing box is installed on the upper surface of the bottom plate, and the bottom end of the first discharging pipe penetrates through the top of the impurity removing box and communicates with the impurity removing box. An air supply assembly is installed on the outer surface of the left side wall of the impurity removal box, a hollowed-out cover is installed on the outer surface of the right side wall of the impurity removal box, and the impurity removal box communicates with the hollowed-out cover through an impurity removal opening. A vibrating screen is fixedly installed in the impurity removing box and located below the impurity removing opening. The utility model can effectively solve the problems that the screen is not easy to clean and is easy to block in the cleaning and impurity removing process of unprocessed grains.

Description

Technical Field

[0001] This utility model belongs to the technical field of grain processing equipment, specifically relating to a raw grain cleaning and impurity removal device. Background Technology

[0002] Raw grains, also known as natural grains, generally refer to unprocessed grains, encompassing various cereals such as rice, wheat, corn, soybeans, sorghum, millet, broad beans, and peas. During raw grain processing, to ensure the quality of the final product and processing efficiency, impurity removal devices must be used to thoroughly remove impurities from the raw grains, effectively separating them from straw and other impurities. Existing impurity removal devices often suffer from screen clogging by impurities in the raw grains, such as soil, dust, and fine straw fragments. These accumulate in the screen mesh, reducing its permeability and thus affecting the impurity removal effect. Furthermore, screen clogging not only reduces removal efficiency but can also lead to equipment malfunctions and increased maintenance costs.

[0003] Therefore, it is particularly important to develop a cleaning and impurity removal device that is easy to clean and does not easily cause screen blockage during the process of cleaning and removing impurities from raw grains. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a raw grain cleaning and impurity removal device, which effectively solves the problem that the screen is not easy to clean and is easy to clog during the current raw grain cleaning and impurity removal process.

[0005] The technical solution provided by this utility model is as follows:

[0006] A grain cleaning and impurity removal device includes a fixed frame with a top plate and a bottom plate. A left side plate and a right side plate are fixedly disposed between the top and bottom plates. The front and back of the fixed frame are hollow. A motor and an intelligent controller are fixedly mounted on the upper surface of the top plate, with the motor located in the center of the top plate and the intelligent controller located to the left of the motor. A crushing box is fixedly disposed on the lower surface of the top plate. A feed inlet is provided at the top of the crushing box, penetrating the top plate and communicating with the outside, and the feed inlet is located to the right of the motor. A rotating shaft is disposed inside the crushing box, penetrating the top of the crushing box and the top plate respectively, and connecting to the output end of the motor. Blades are installed longitudinally at equal intervals on the rotating shaft; a first discharge pipe is fixedly installed at the center of the bottom of the crushing box, and a switch control valve is installed on the first discharge pipe; a cleaning box is fixedly installed on the upper surface of the base plate, and the bottom end of the first discharge pipe passes through the top of the cleaning box and communicates with the cleaning box; an air supply assembly is fixedly installed on the outer surface of the left side wall of the cleaning box, and a perforated cover is fixedly installed on the outer surface of the right side wall of the cleaning box, and the cleaning box and the perforated cover are connected through a cleaning port; a vibrating screen is fixedly installed inside the cleaning box, and the vibrating screen is located below the cleaning port; the motor, the switch control valve, and the vibrating screen are all connected to the intelligent controller through electrical wires.

[0007] Furthermore, the crushing box has a cylindrical structure, and the bottom of the crushing box is set as an inverted conical structure; a support rod is fixedly installed between the crushing box and the left and right side plates.

[0008] Furthermore, the air supply assembly includes an air pump, one end of which is provided with an air inlet and the other end is connected to an air outlet pipe. The air outlet pipe passes through the left side wall of the impurity removal box and communicates with the air chamber. The air chamber is fixedly installed on the left inner wall of the impurity removal box, and multiple air outlets are evenly arranged on the air chamber.

[0009] Furthermore, the air pump is connected to the intelligent controller via electrical wires.

[0010] Furthermore, the vibrating screen is fixedly installed in the impurity removal box with its left side lower than its right side, and the vibrating screen forms a 30° angle with the horizontal direction.

[0011] Furthermore, a second discharge pipe is provided on the lower part of the left side wall of the impurity removal box near the vibrating screen, and a switch valve is provided on the second discharge pipe.

[0012] Furthermore, the bottom of the impurity removal box is provided with an inclined bottom plate, which is located below the vibrating screen.

[0013] Furthermore, the inclined base plate has a sloping structure that is higher on the left and lower on the right, and the sloping surface of the inclined base plate forms a 15° angle with the horizontal direction.

[0014] Furthermore, a third discharge pipe is provided on the lower part of the right side wall of the impurity removal box near the inclined bottom plate, and a switch valve is provided on the third discharge pipe.

[0015] Furthermore, the front of the cleaning box is provided with a box door, and the inside of the box door is provided with a sealing strip.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) When using this utility model, the raw grain mixed with straw and other impurities is added into the crushing box through the feed inlet. The motor is started and the motor drives the rotating shaft to rotate, which in turn drives the blades located on the rotating shaft to rotate. The blades are designed with wide and blunt edges, which can provide enough force to cut the straw while avoiding excessive impact on the raw grain, ensuring that the raw grain is not damaged. After crushing, the straw mixed in with the raw grain is effectively broken up, and then enters the impurity removal box through the first discharge pipe. At the same time as the raw grain enters the impurity removal box, the air supply assembly (including air pump outlet pipe, air chamber, and air outlet) and the vibrating screen are activated. The vibrating screen moves up and down under electric drive, causing the raw grain mixed with crushed straw and other impurities to continuously turn over on the screen. At this time, the airflow generated by the air pump is sent into the air chamber through the air outlet pipe, and then introduced into the impurity removal box through the air outlet on the air chamber. The crushed straw and other light material impurities are blown into the perforated cover under the action of the airflow, realizing the effective separation and cleaning of the raw grain from the straw and other light material impurities. The thoroughly cleaned raw grain falls onto the inclined bottom plate through the screen and is collected and stored through the third discharge pipe. The raw grain that is not thoroughly cleaned will remain on the vibrating screen, be collected through the second discharge pipe, and be returned to the cleaning and impurity removal device for reprocessing to ensure that all raw grains are thoroughly cleaned. Furthermore, the front of the impurity removal box is equipped with a door, which makes it easy for operators to clean and maintain the vibrating screen, prevent blockages, and ensure the long-term stable operation of the equipment.

[0018] (2) This utility model adopts a combination of vibrating screen and airflow, which can efficiently separate light impurities (such as crushed straw) in the raw grain, thus improving the impurity removal efficiency. For raw grain that is not thoroughly cleaned, it is collected through the second discharge pipe and returned to the cleaning and impurity removal device for further processing, ensuring that all raw grain is thoroughly cleaned, avoiding waste and improving resource utilization. In addition, the entire process is uniformly controlled by an intelligent controller, realizing automated operation from feeding, crushing, impurity removal to discharge, reducing manual intervention and improving production efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the appearance of a grain cleaning and impurity removal device according to the present invention;

[0020] Figure 2This is a schematic diagram of the overall structure of a novel grain cleaning and impurity removal device according to this utility model;

[0021] Figure 3 This utility model Figure 2 A magnified view of part A in the diagram.

[0022] In the diagram: 1 Fixed frame, 2 Motor, 3 Intelligent controller, 4 Crushing box, 41 Rotating shaft, 42 Blade, 43 First discharge pipe, 44 Switch control valve, 45 Feed inlet, 5 Support rod, 6 Impurity removal box, 61 Air supply assembly, 611 Air pump, 612 Air inlet, 613 Air outlet pipe, 614 Air chamber, 615 Air outlet, 62 Hollowed-out cover, 63 Impurity removal port, 64 Vibrating screen, 65 Second discharge pipe, 66 Third discharge pipe, 67 Inclined bottom plate, 68 Box door. Detailed Implementation

[0023] 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.

[0024] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The circuits, electronic components, and modules involved in this utility model are all prior art, and those skilled in the art can fully implement them.

[0026] This utility model provides a device for cleaning and removing impurities from raw grains. The technical solution of this utility model will be further described below with reference to the accompanying drawings:

[0027] See Figure 1 and Figure 2 It is known that a raw grain cleaning and impurity removal device includes a fixed frame 1, which is provided with a top plate 11 and a bottom plate 12. A left side plate 13 and a right side plate 14 are fixedly arranged between the top plate 11 and the bottom plate 12. The front and back of the fixed frame 11 are hollow structures. A motor 2 and an intelligent controller 3 are fixedly installed on the upper surface of the top plate 11. The motor 2 is located in the center of the top plate 11, and the intelligent controller 3 is located to the left of the motor 2. A crushing box 4 is fixedly arranged on the lower surface of the top plate 11. A feed inlet 45 is provided at the top of the crushing box 4. The feed inlet 45 passes through the top plate 11 and communicates with the outside. The feed inlet 45 is located to the right of the motor 2. A rotating shaft 41 is provided inside the crushing box 4. The rotating shaft 41 passes through the top of the crushing box 4 and the top plate 11 and is connected to the output end of the motor 2. The rotating shaft 41 is equipped with blades 42 at equal intervals along its length; a first discharge pipe 43 is fixedly installed at the center of the bottom of the crushing box 4, and a switch control valve 44 is installed on the first discharge pipe 43; a cleaning box 6 is fixedly installed on the upper surface of the bottom plate 12, and the bottom end of the first discharge pipe 43 passes through the top of the cleaning box 6 and is connected to the cleaning box 6; an air supply assembly 61 is fixedly installed on the outer surface of the left side wall of the cleaning box 6, and a perforated cover 62 is fixedly installed on the outer surface of the right side wall of the cleaning box 6, and the cleaning box 6 and the perforated cover 62 are connected through a cleaning port 63; a vibrating screen 64 is fixedly installed inside the cleaning box 6, and the vibrating screen 64 is located below the cleaning port 63; the motor 2, the switch control valve 44 and the vibrating screen 64 are all connected to the intelligent controller 3 through electrical wires.

[0028] In the above embodiment, the crushing box 4 has a cylindrical structure, and the bottom of the crushing box 4 is set with an inverted conical structure, which is conducive to the smooth flow of materials through the first discharge pipe 42; a support rod 5 is fixedly installed between the crushing box 4 and the left side plate 13 and the right side plate 14 to ensure the stability of the crushing box 4 during operation.

[0029] See Figure 2 and Figure 3 As can be seen, in the above embodiment, the air supply assembly 61 includes an air pump 611, one end of which is provided with an air inlet 612 and the other end is connected to an air outlet pipe 613. The air outlet pipe 613 passes through the left side wall of the impurity removal box 6 and communicates with the air chamber 614. The air chamber 614 is fixedly installed on the left inner wall of the impurity removal box 6, and multiple air outlets 615 are evenly arranged on the air chamber 614. The air pump 611 is connected to the intelligent controller 3 through an electrical wire.

[0030] It is worth noting that the air pump 611 is the core component of the air supply assembly 61, used to generate airflow. One end of the air pump 611 is equipped with an air inlet 612 for drawing in outside air, and the other end is connected to an air outlet pipe 613. The air outlet pipe 613 delivers the high-pressure airflow generated by the air pump 611 to the air chamber 614, and through multiple air outlets 615 on the air chamber 614, the airflow is evenly distributed inside the impurity removal box 6, thus covering the entire vibrating screen 64 area. This design not only improves the coverage of the airflow, but also ensures that light impurities can be effectively blown away from the surface of the raw grain and discharged into the perforated cover 62 through the impurity removal port 63.

[0031] See Figure 2 As can be seen, in the above embodiment, the vibrating screen 64 is fixedly installed in the impurity removal box 6 with the left side lower and the right side higher, and the vibrating screen 64 forms a 30° angle with the horizontal direction; a second discharge pipe 65 is provided on the lower part of the left side wall of the impurity removal box 6 near the vibrating screen 64, and a switch valve is provided on the second discharge pipe 65.

[0032] It is worth noting that the left side of the vibrating screen 64 is lower and the right side is higher, which facilitates the separation and discharge of raw grains and impurities. This design not only improves screening efficiency but also reduces material accumulation on the screen surface, ensuring the continuity and stability of the screening process. The second discharge pipe 65 is used to collect raw grains that are not thoroughly cleaned. These raw grains will be returned to the crushing box 4 through this pipe for further processing until they are completely cleaned and impurities are removed.

[0033] See Figure 2 As can be seen, in the above embodiment, the bottom of the impurity removal box 6 is provided with an inclined bottom plate 67, which is located below the vibrating screen 64; the inclined bottom plate 67 has a slope structure that is higher on the left and lower on the right, and the slope of the inclined bottom plate 67 forms a 15° angle with the horizontal direction; a third discharge pipe 66 is provided on the lower part of the right side wall of the impurity removal box 6 near the inclined bottom plate 67, and a switch valve is provided on the third discharge pipe 66.

[0034] It is worth noting that the inclined bottom plate 67 is located below the vibrating screen 64, ensuring that the raw grain that has been thoroughly cleaned and impurities removed after screening can fall smoothly onto the inclined bottom plate. The inclined bottom plate 67 has a slope structure that is higher on the left and lower on the right, allowing the raw grain to slide smoothly to the right along the slope under the influence of gravity and be discharged and collected through the third discharge pipe 66.

[0035] See Figure 1 As can be seen, in the above embodiment, the front of the impurity removal box 6 is provided with a box door 68, and the inside of the box door 68 is provided with a sealing strip.

[0036] It is worth noting that the design of the housing door 68 allows operators to easily clean and maintain key components such as the vibrating screen 64 and the air chamber 614 inside the impurity removal box 6, avoiding long-term downtime due to internal blockage or malfunction, and improving the reliability and working efficiency of the equipment; the inner side of the housing door 68 is equipped with a sealing strip to ensure a good sealing effect when the housing door 68 is closed.

[0037] The working principle of this utility model is as follows: When in use, an external power source is connected, and the raw grain mixed with straw and other impurities is added to the crushing box 4 through the feed inlet 45. The intelligent controller 3 starts the motor 2, which drives the rotating shaft 41 to rotate, thereby driving the blades 42 located on the rotating shaft 41 to rotate. The blades 42 are designed with wide and blunt edges, providing sufficient force to cut the straw while ensuring that the raw grain is not damaged. After crushing, the straw mixed in the raw grain is effectively broken. The intelligent controller 3 opens the switch control valve 44, and then the grain enters the impurity removal box 6 through the first discharge pipe 43. Simultaneously, the intelligent controller 3 starts the air pump 611 and the vibrating screen 64. The vibrating screen 64 vibrates up and down under electric drive, causing the raw grain mixed with crushed straw and other impurities to continuously jump and tumble on the screen. At this time, the air pump 611 draws in outside air through the air inlet 612, compresses it to generate a high-pressure airflow, and delivers this airflow to the air chamber 614 through the air outlet pipe 613. Multiple air outlets 615 disperse the airflow into the impurity removal box 6. The airflow acts on the material on the vibrating screen 64, blowing light impurities (such as crushed straw) through the impurity removal port 63 into the perforated cover 62, thus achieving effective separation and cleaning of the raw grain from light impurities such as straw. The thoroughly cleaned raw grain falls onto the inclined bottom plate 67 through the screen of the vibrating screen 64 and is collected and stored through the third discharge pipe 66. The raw grain that is not thoroughly cleaned will remain on the vibrating screen 64, be collected through the second discharge pipe 65, and be returned to the cleaning and impurity removal device for further processing to ensure that all raw grains are thoroughly cleaned.

[0038] The above provides a detailed description of the raw grain cleaning and impurity removal device provided by this utility model. The above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A grain cleaning and impurity removal device, comprising a fixed frame (1), wherein the fixed frame (1) is provided with a top plate (11) and a bottom plate (12), and a left side plate (13) and a right side plate (14) are fixedly arranged between the top plate (11) and the bottom plate (12), wherein the front and back of the fixed frame (1) are hollow structures, characterized in that, A motor (2) and an intelligent controller (3) are fixedly installed on the upper surface of the top plate (11). The motor (2) is located in the center of the top plate (11), and the intelligent controller (3) is located to the left of the motor (2). A crushing box (4) is fixedly installed on the lower surface of the top plate (11). A feed inlet (45) is provided on the top of the crushing box (4). The feed inlet (45) passes through the top plate (11) and communicates with the outside. The feed inlet (45) is located to the right of the motor (2). A rotating shaft (41) is provided inside the crushing box (4). The rotating shaft (41) passes through the top of the crushing box (4) and the top plate (11) and is connected to the output end of the motor (2). Blades (42) are installed longitudinally at equal intervals on the rotating shaft (41). A first discharge point is fixedly installed at the center of the bottom of the crushing box (4). The first discharge pipe (43) is equipped with a switch control valve (44); a cleaning box (6) is fixedly installed on the upper surface of the base plate (12), the bottom end of the first discharge pipe (43) passes through the top of the cleaning box (6) and is connected to the cleaning box (6); an air supply assembly (61) is fixedly installed on the outer surface of the left side wall of the cleaning box (6), a perforated cover (62) is fixedly installed on the outer surface of the right side wall of the cleaning box (6), and the cleaning box (6) and the perforated cover (62) are connected through a cleaning port (63); a vibrating screen (64) is fixedly installed inside the cleaning box (6), and the vibrating screen (64) is located below the cleaning port (63); the motor (2), the switch control valve (44) and the vibrating screen (64) are all connected to the intelligent controller (3) through electrical wires.

2. The grain cleaning and impurity removal device according to claim 1, characterized in that, The crushing box (4) has a cylindrical structure, and the bottom of the crushing box (4) is set as an inverted cone structure; a support rod (5) is fixedly installed between the crushing box (4) and the left side plate (13) and the right side plate (14).

3. The grain cleaning and impurity removal device according to claim 1, characterized in that, The air supply assembly (61) includes an air pump (611), one end of which is provided with an air inlet (612) and the other end is connected to an air outlet pipe (613). The air outlet pipe (613) passes through the left side wall of the impurity removal box (6) and communicates with the air chamber (614). The air chamber (614) is fixedly installed on the left inner wall of the impurity removal box (6), and multiple air outlets (615) are evenly arranged on the air chamber (614).

4. The grain cleaning and impurity removal device according to claim 3, characterized in that, The air pump (611) is connected to the intelligent controller (3) via an electrical wire.

5. The raw grain cleaning and impurity removal device according to claim 1, characterized in that, The vibrating screen (64) is fixedly installed in the impurity removal box (6) with the left side lower and the right side higher, and the vibrating screen (64) forms a 30° angle with the horizontal direction.

6. The raw grain cleaning and impurity removal device according to claim 5, characterized in that, A second discharge pipe (65) is provided on the lower left side wall of the impurity removal box (6) near the vibrating screen (64), and a switch valve is provided on the second discharge pipe (65).

7. The grain cleaning and impurity removal device according to claim 6, characterized in that, The bottom of the impurity removal box (6) is provided with an inclined bottom plate (67), which is located below the vibrating screen (64).

8. The raw grain cleaning and impurity removal device according to claim 7, characterized in that, The inclined base plate (67) has a sloping structure with the left side higher than the right side, and the sloping surface of the inclined base plate (67) forms a 15° angle with the horizontal direction.

9. A grain cleaning and impurity removal device according to claim 8, characterized in that, A third discharge pipe (66) is provided on the lower part of the right side wall of the impurity removal box (6) near the inclined bottom plate (67), and a switch valve is provided on the third discharge pipe (66).

10. The raw grain cleaning and impurity removal device according to claim 1, characterized in that, The cleaning box (6) has a box door (68) on the front, and a sealing strip is provided on the inside of the box door (68).

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