Efficient wheat cleaning and screening device

Abstract

This utility model relates to the field of wheat processing technology and discloses a high-efficiency wheat washing and screening device, including a casing. An impurity discharge hole is provided on one side of the casing. A third fixing plate is fixedly connected to the upper outer side of the casing. A screening mechanism is provided on the top of the third fixing plate. An air duct box is provided on the side of the casing away from the impurity discharge hole. A first optical axis is provided inside the air duct box. An isolation plate is rotatably connected to the outer wall of the first optical axis. A second optical axis is rotatably connected to the side of the isolation plate away from the air duct box. An adjusting strip is rotatably connected to the outer wall of the second optical axis. In this utility model, airflow is generated by a blower mechanism and transported into the casing through the air duct box. The adjusting strip allows for upward adjustment, thus solving the problems of poor purification effect and increased raw material loss in traditional wheat washing and screening devices.

Description

Technical Field

[0001] This utility model relates to the field of wheat processing technology, and in particular to a high-efficiency wheat washing and screening device. Background Technology

[0002] Wheat is an important global food crop, which can be processed into flour to make staple foods such as bread, noodles, and steamed buns. It can also be used to extract starch, brew beer, and its bran can be used as animal feed. Rich in carbohydrates, protein, and vitamins, wheat provides energy and nutrition for humans and is widely used in the food industry and animal husbandry, playing a vital role in ensuring food security and dietary structure.

[0003] Traditional wheat washing and screening devices mostly adopt a fixed wind speed design. Since the wind speed cannot be adjusted according to the type of impurities and the humidity of the wheat, when dealing with wet wheat, the wind speed is insufficient, resulting in incomplete removal of light impurities. When processing dry wheat, the wind speed is too strong, causing wheat grains to be blown away by mistake. This results in poor screening effect and increased raw material loss. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a high-efficiency wheat washing and screening device, which aims to improve the problem that most traditional wheat washing and screening devices adopt a fixed wind speed design. Since the wind speed cannot be adjusted according to the type of impurities and the humidity of the wheat, when dealing with wet wheat, the wind speed is insufficient, resulting in incomplete removal of light impurities. When processing dry wheat, the wind speed is too strong, causing wheat grains to be blown away by mistake, resulting in poor purification effect and increased raw material loss.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency wheat washing and screening device, comprising a casing, an impurity discharge hole on one side of the casing, a third fixing plate fixedly connected to the upper outer side of the casing, a screening mechanism on the top of the third fixing plate, an air duct box on the side of the casing away from the impurity discharge hole, a first optical axis inside the air duct box, an isolation plate rotatably connected to the outer wall of the first optical axis, a second optical axis rotatably connected to the side of the isolation plate away from the air duct box, an adjusting strip rotatably connected to the outer wall of the second optical axis, a blower mechanism on the side of the isolation plate away from the casing, a second baffle fixedly connected to the bottom of the casing, and a washing mechanism at the bottom of the second baffle.

[0006] By adopting the above technical solution, airflow is generated by the blower mechanism and transported into the machine through the air duct box. With the adjustment bar adjusted upwards, the isolation plate rotates around the center point of the first optical axis cross-section to increase the wind resistance area and reduce the airflow intensity inside the machine. When the adjustment bar is adjusted downwards, the isolation plate rotates around the center point of the first optical axis cross-section to reduce the wind resistance area, thereby increasing the airflow intensity inside the machine. This enables the removal of light impurities mixed in wheat through air separation. This solves the problem that most traditional wheat washing and screening devices adopt a fixed wind speed design. Since the wind speed cannot be adjusted according to the type of impurities and the humidity of the wheat, the wind speed is insufficient when dealing with wet wheat, resulting in incomplete removal of light impurities. When processing dry wheat, the wind speed is too strong, causing wheat grains to be blown away by mistake, resulting in poor purification effect and increased raw material loss.

[0007] Preferably, the screening mechanism includes a filter housing, the bottom of which is fixedly connected to the top of the third fixing plate, a filter plate is provided inside the filter housing, a filter hole is provided on the upper part of the filter plate, and a first baffle is fixedly connected to the outer wall of the filter housing.

[0008] Preferably, the blower mechanism includes a housing, a fan blade is disposed inside the housing, a first motor is fixedly connected to the bottom of the housing, a second output shaft is rotatably disposed at the output end of the first motor, the second output shaft is fixedly connected to the center position of the fan blade, and a support mechanism is fixedly connected to the bottom of the housing.

[0009] Preferably, the washing mechanism includes a first fixed plate, which is fixedly connected to the outer wall of the machine box. A second motor is fixedly connected to the bottom surface of the first fixed plate. A first output shaft is rotatably provided at the output end of the second motor. An agitator is fixedly connected to the lower outer side of the first output shaft. A washing chamber is fixedly connected to the bottom of the second baffle, and the agitator is inside the washing chamber.

[0010] Preferably, a circular tube is fixedly connected to the bottom of the filter housing, and a filter collection chamber is provided at the bottom of the circular tube, with the filter collection chamber located directly below the circular tube.

[0011] Preferably, the support mechanism includes a second fixed plate, a support column is fixedly connected to the bottom surface of the second fixed plate, an installation opening is provided in the middle of the second fixed plate, and the first motor is disposed inside the installation opening.

[0012] Preferably, the cleaning chamber is internally fixedly connected to a support bar, and a second filter screen is fixedly connected to the top of the support bar.

[0013] Preferably, a drain pipe is provided on the lower outer side of the cleaning chamber, and a cover is provided on the outer wall of the drain pipe.

[0014] This utility model has the following beneficial effects: 1. In this utility model, airflow is generated by a blower mechanism and transported into the machine casing through the air duct box. With the adjustment bar adjusted upwards, the isolation plate rotates around the center point of the cross-section of the first optical axis to increase the wind resistance area and reduce the airflow intensity inside the machine casing. When the adjustment bar is adjusted downwards, the isolation plate rotates around the center point of the cross-section of the first optical axis to reduce the wind resistance area, thereby increasing the airflow intensity inside the machine casing. This enables the removal of light impurities mixed in wheat through air separation, thus solving the problem that traditional wheat washing and screening devices mostly adopt a fixed wind speed design. Since the wind speed cannot be adjusted according to the type of impurities and the humidity of the wheat, the wind speed is insufficient when dealing with wet wheat, resulting in incomplete removal of light impurities. When processing dry wheat, the wind speed is too strong, causing wheat grains to be blown away by mistake, resulting in poor purification effect and increased raw material loss.

[0015] 2. In this utility model, filter holes are provided on the upper part of the filter plate, and the filter plate is at a certain angle to the ground. Since the size of the filter holes is smaller than the volume of wheat grains, when wheat and impurities enter from the top of the filter shell, the wheat will slide down the inclined filter plate into the machine box by gravity, while the small impurities smaller than wheat grains will fall into the lower part of the filter plate through the filter holes, thereby achieving the initial screening of small impurities in wheat. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a high-efficiency wheat washing and screening device proposed in this utility model; Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram; Figure 3 This is a cross-sectional structural diagram of the filter shell and the washing chamber in a high-efficiency wheat washing and screening device proposed in this utility model. Figure 4 This is a rear three-dimensional structural diagram of a high-efficiency wheat washing and screening device proposed in this utility model. Figure 5 This is a front view structural diagram of a high-efficiency wheat washing and screening device proposed in this utility model.

[0017] Legend: 1. Chassis; 2. First fixing plate; 3. Drain pipe; 4. First output shaft; 5. Agitator blade; 6. Cleaning chamber; 7. Support column; 8. Second fixing plate; 9. Second output shaft; 10. Housing; 11. Fan blade; 12. Air duct box; 13. Round tube; 14. Third fixing plate; 15. Filter plate; 16. Filter housing; 17. First baffle; 18. Impurity discharge hole; 19. Filter hole; 20. Isolation plate; 21. Adjusting bar; 22. First motor; 23. Second motor; 24. Second baffle; 25. Filter collection chamber; 26. Cover; 27. Second filter screen; 28. First optical axis; 29. ​​Second optical axis. Detailed Implementation

[0018] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] Reference Figures 1-4 An embodiment of this utility model provides: a high-efficiency wheat washing and screening device, including a housing 1, an impurity discharge hole 18 on one side of the housing 1, a third fixing plate 14 fixedly connected to the upper outer side of the housing 1, a screening mechanism on the top of the third fixing plate 14, an air duct box 12 on the side of the housing 1 away from the impurity discharge hole 18, a first optical axis 28 inside the air duct box 12, an isolation plate 20 rotatably connected to the outer wall of the first optical axis 28, a second optical axis 29 rotatably connected to the side of the isolation plate 20 away from the air duct box 12, an adjusting strip 21 rotatably connected to the outer wall of the second optical axis 29, a blower mechanism on the side of the isolation plate 20 away from the housing 1, a second baffle 24 fixedly connected to the bottom of the housing 1, and a washing mechanism at the bottom of the second baffle 24.

[0020] Specifically, the chassis 1 supports the air duct box 12; the impurity discharge hole 18 discharges light impurities that fall from the surface of the screening mechanism; the third fixing plate 14, fixedly connected to the chassis 1, supports the screening mechanism; the first optical axis 28, located inside the air duct box 12, supports the first optical axis 28; the first optical axis 28 is rotatably connected to the isolation plate 20, allowing the isolation plate 20 to rotate around the cross-section of the first optical axis 28; the isolation plate 20 blocks the airflow; and the second optical axis... The second optical axis 29 serves to rotatably connect the isolation plate 20. Simultaneously, the rotatable connection between the second optical axis 29 and the adjusting strip 21 allows the isolation plate 20 to rotate via the movement of the adjusting strip 21. A damping pad is provided at the connection point between the adjusting strip 21 and the isolation plate 20. The elastic deformation of the damping pad generates frictional resistance, allowing the adjusting strip 21 and the isolation plate 20 to rotate to any angle and remain suspended without being affected by airflow. Rotating the section of the adjusting strip 21 furthest from the chassis 1 upwards increases the obstruction of airflow, while moving it downwards reduces the obstruction. The second baffle 24 supports the casing 1 and allows the wind-screened wheat to fall onto the sliding surface of the second baffle 24, sliding into the washing mechanism. The blower mechanism generates airflow, and the washing mechanism cleans the wheat. By employing the above technical solution, the blower generates airflow, which is then transported into the casing 1 through the air duct box 12. With the upward adjustment of the adjusting strip 21, the isolation plate 20 rotates around the center point of the first optical axis 28's cross-section to increase the wind resistance area and reduce the airflow intensity inside the casing 1. When the adjusting bar 21 is adjusted downwards, the isolation plate 20 rotates around the center point of the cross-section of the first optical axis 28 to reduce the wind resistance area, thereby increasing the airflow intensity inside the casing 1. This enables the removal of light impurities mixed in the wheat by air separation, thus solving the problem that most traditional wheat washing and screening devices adopt a fixed wind speed design. Since the wind force cannot be adjusted according to the type of impurities and the humidity of the wheat, the light impurities are easily not completely removed when facing wet wheat due to insufficient wind force, and the wheat grains are accidentally blown away due to excessive wind force when processing dry wheat, resulting in poor purification effect and increased raw material loss.

[0021] Reference Figures 1-3 The screening mechanism includes a filter housing 16, the bottom of which is fixedly connected to the top of the third fixing plate 14. A filter plate 15 is provided inside the filter housing 16, and a filter hole 19 is provided on the upper part of the filter plate 15. A first baffle 17 is fixedly connected to the outer wall of the filter housing 16.

[0022] Specifically, the filter plate 15 inside the filter housing 16 serves to support the filter plate 15; the filter plate 15 has filter holes 19 on its upper part, and the filter plate 15 is at a certain angle to the horizontal plane, allowing wheat to slide into the machine housing 1, thereby achieving the functions of screening and conveying; the filter holes 19 are smaller than the volume of wheat, allowing impurities smaller than wheat to fall into the lower part of the filter plate 15; the first baffle 17 changes the direction of wheat movement, and the first baffle 17 is located directly above the machine housing 1, changing the direction of wheat under the action of the first baffle 17, allowing it to fall into the machine housing 1 by gravity.

[0023] Reference Figure 1 The blower mechanism includes a housing 10, inside which a fan blade 11 is provided. A first motor 22 is fixedly connected to the bottom of the housing 10. A second output shaft 9 is rotatably provided at the output end of the first motor 22. The second output shaft 9 is fixedly connected to the center position of the fan blade 11. A support mechanism is fixedly connected to the bottom of the housing 10.

[0024] Specifically, the housing 10 protects workers from injury caused by the high-speed rotating fan blades 11; the first motor 22 generates rotational power; the second output shaft 9 is fixedly connected to the fan blades 11, transmitting the rotational power from the output of the first motor 22 to the fan blades 11; the high-speed rotation of the fan blades 11, in conjunction with the housing 10, generates negative pressure airflow in the middle of the fan blades 11, which is discharged through the output end of the fan blades 11 near the regulating bar 21; and the support mechanism supports the housing 10.

[0025] Reference Figure 1 The washing mechanism includes a first fixed plate 2, which is fixedly connected to the outer wall of the housing 1. A second motor 23 is fixedly connected to the bottom surface of the first fixed plate 2. A first output shaft 4 is rotatably provided at the output end of the second motor 23. An agitator 5 is fixedly connected to the lower outer side of the first output shaft 4. A washing chamber 6 is fixedly connected to the bottom of the second baffle 24. The agitator 5 is inside the washing chamber 6.

[0026] Specifically, the first fixing plate 2 can fix and connect the second motor 23; the second motor 23 can generate rotational power; the first output shaft 4 can transmit the power output of the second motor 23 to the stirring blade 5; the stirring blade 5 can stir, and the spiral shape of the stirring blade 5 can turn the wheat upward. Inside the washing chamber 6, the wheat and water are stirred to separate the wheat from impurities. The washing chamber 6 can store the wheat and water.

[0027] Reference Figures 3-4A round tube 13 is fixedly connected to the bottom of the filter housing 16. A filter collection chamber 25 is provided at the bottom of the round tube 13, and the filter collection chamber 25 is directly below the round tube 13.

[0028] Specifically, the circular tube 13 allows impurities filtered by the filter plate 15 to fall out easily through the circular tube 13; the filter collection chamber 25 serves to store impurities, which fall from the inside of the circular tube 13 after being filtered by the filter plate 15 and are collected inside the filter collection chamber 25.

[0029] Reference Figure 5 The support mechanism includes a second fixed plate 8, a support column 7 is fixedly connected to the bottom surface of the second fixed plate 8, and an installation port is opened in the middle of the second fixed plate 8. The first motor 22 is installed inside the installation port.

[0030] Specifically, the second fixing plate 8 can fix the housing 10, and the mounting hole in the middle of the second fixing plate 8 can be used to place the first motor 22; the support column 7 can support the housing 10, so that the height of the housing 10 is level with the height of the adjusting bar 21, thereby allowing the airflow at the output end to be blown into the air duct box 12 for wind sieving of wheat.

[0031] Reference Figure 3 The cleaning chamber 6 has an internal fixed support bar, and a second filter screen 27 is fixedly connected to the top of the support bar.

[0032] Specifically, the second filter 27 can prevent wheat from falling to the bottom of the washing chamber 6, and can also separate impurities, so that the impurities settle to the bottom of the washing chamber 6; the spacer strip can support the second filter 27.

[0033] Reference Figure 3 A drain pipe 3 is provided on the lower outer side of the cleaning chamber 6, and a cover 26 is provided on the outer wall of the drain pipe 3.

[0034] Specifically, the drain pipe 3 can discharge sewage. The drain pipe 3 is located between the second filter screen 27 and the bottom of the cleaning chamber 6. At the same time, it can discharge the impurities that have settled at the bottom of the cleaning chamber 6 through the drain pipe 3. The cover 26 and the outer wall of the drain pipe 3 are sealed by friction, and the cover 26 can also seal and prevent leakage.

[0035] Working principle: During the wheat washing and screening process, the first motor 22 is started, causing the fan blades 11 to rotate at high speed through the rotational force transmitted by the second output shaft 9, thereby generating airflow at the output end and blowing it towards the isolation plate 20. When the upward adjustment bar 21 is adjusted, the adjustment bar 21 drives the second optical axis 29 to move, and the second optical axis 29 drives the isolation plate 20 to rotate upward about the center point of the cross-section of the first optical axis 28, so that the isolation plate 20 is horizontal in the direction of the airflow, and then the airflow enters the interior of the casing 1 through the air duct box 12. Wheat seeds and impurities are poured in from the top of the filter shell 16. Due to gravity and the slope of the filter plate 15, the seeds roll into the interior of the casing 1, while the fine impurities are screened by the filter holes 19 to the lower part of the filter plate 15. The impurities fall into the interior of the filter collection chamber 25 through the round tube 13 for collection. The wheat that falls into the casing 1 through the filter plate 15 will be screened by the airflow. By adjusting the downward adjustment bar 21, the adjustment bar 21 moves and drives the second optical axis 29. The second optical axis 29 moves, causing the isolation plate 20 to rotate around the center point of the cross-section of the first optical axis 28. This increases the contact area between the isolation plate 20 and the airflow, thereby reducing the airflow. This allows lighter impurities, except for wheat, to be blown away by the airflow. When the wheat is freshly harvested, it is relatively damp. Damp wheat that has not been dried is heavier. The upward adjustment bar 21 can reduce the contact area between the isolation plate 20 and the airflow, thereby reducing the obstruction of the airflow and allowing the damp wheat to be air-separated. The air-separated wheat falls into the washing chamber 6 through the second baffle 24. Clean water is added to the washing chamber 6 for washing. The second motor 23 is started, causing the first output shaft 4 at the output end to rotate, which drives the stirring blade 5 to rotate. The rotation of the stirring blade 5 drives the wheat and clean water, thereby washing the wheat. After the wheat is washed, the cover 26 is removed to discharge the sewage from the drain pipe 3. At this time, the second filter screen 27 isolates the wheat to prevent it from being carried away by the water.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency wheat washing and screening device, comprising a casing (1), characterized in that: The machine casing (1) has an impurity discharge hole (18) on one side. A third fixing plate (14) is fixedly connected to the upper outer side of the machine casing (1). A screening mechanism is provided on the top of the third fixing plate (14). A duct box (12) is provided on the side of the machine casing (1) away from the impurity discharge hole (18). A first optical axis (28) is provided inside the duct box (12). An isolation plate (20) is rotatably connected to the outer wall of the first optical axis (28). A second optical axis (29) is rotatably connected to the side of the isolation plate (20) away from the duct box (12). An adjusting strip (21) is rotatably connected to the outer wall of the second optical axis (29). A blower mechanism is provided on the side of the isolation plate (20) away from the machine casing (1). A second baffle (24) is fixedly connected to the bottom of the machine casing (1). A washing mechanism is provided at the bottom of the second baffle (24).

2. The high-efficiency wheat washing and screening device according to claim 1, characterized in that: The screening mechanism includes a filter housing (16), the bottom of which is fixedly connected to the top of the third fixing plate (14). A filter plate (15) is provided inside the filter housing (16), and a filter hole (19) is provided on the upper part of the filter plate (15). A first baffle (17) is fixedly connected to the outer wall of the filter housing (16).

3. The high-efficiency wheat washing and screening device according to claim 1, characterized in that: The blower mechanism includes a housing (10), inside which a fan blade (11) is provided. A first motor (22) is fixedly connected to the bottom of the housing (10). A second output shaft (9) is rotatably provided at the output end of the first motor (22). The second output shaft (9) is fixedly connected to the center of the fan blade (11). A support mechanism is fixedly connected to the bottom of the housing (10).

4. The high-efficiency wheat washing and screening device according to claim 1, characterized in that: The washing mechanism includes a first fixed plate (2), which is fixedly connected to the outer wall of the casing (1). A second motor (23) is fixedly connected to the bottom surface of the first fixed plate (2). A first output shaft (4) is rotatably provided at the output end of the second motor (23). A stirring blade (5) is fixedly connected to the lower outer side of the first output shaft (4). A washing chamber (6) is fixedly connected to the bottom of the second baffle (24). The stirring blade (5) is inside the washing chamber (6).

5. The high-efficiency wheat washing and screening device according to claim 2, characterized in that: The bottom of the filter housing (16) is fixedly connected to a round tube (13), and a filter collection chamber (25) is provided at the bottom of the round tube (13), which is directly below the round tube (13).

6. The high-efficiency wheat washing and screening device according to claim 3, characterized in that: The support mechanism includes a second fixed plate (8), on the bottom surface of which a support column (7) is fixedly connected. An installation port is provided in the middle of the second fixed plate (8), and the first motor (22) is installed inside the installation port.

7. The high-efficiency wheat washing and screening device according to claim 4, characterized in that: The cleaning chamber (6) is internally fixedly connected to a support bar, and a second filter screen (27) is fixedly connected to the top of the support bar.

8. The high-efficiency wheat washing and screening device according to claim 4, characterized in that: A drain pipe (3) is provided on the lower outer side of the cleaning chamber (6), and a cover (26) is provided on the outer wall of the drain pipe (3).

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