Airflow blowing and drying device for millet production

Abstract

The invention belongs to the technical field of airflow screening, and particularly provides a millet production airflow drying device which comprises a screening box, an air blowing assembly, a constant-speed blanking assembly, a first conveying belt and a drying assembly, a first blanking channel and a second blanking channel are formed in the screening box, an air inlet is formed in the side wall of the first blanking channel, and an air outlet is formed in the side wall of the second blanking channel; the air blowing assembly blows air into the screen box through the air inlet. The constant-speed discharging assembly is used for scattering millet materials into the first discharging channel at a constant speed, and light impurities can be blown to the position above the second discharging channel by airflow, fall down along the second discharging channel and are discharged through a second discharging port. And the heavier millet materials continue to fall down along the first blanking channel, fall to the first conveying belt below through the first discharge port, and are conveyed to a specified position by the first conveying belt. According to the constant-speed blanking device, constant-speed blanking of millet materials is achieved through the constant-speed blanking assembly, the screening quality can be guaranteed, the number of times of follow-up repeated screening is reduced, time and workload are saved, and the screening efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of air flow screening devices, and particularly relates to an air flow blowing and drying device for millet production. Background Art

[0002] After millet is harvested from the field, it needs to be screened to remove straws, stones, chaff, etc. contained therein to obtain qualified products. Common screening devices include vibrating screens and air flow screens. These two screening devices each have their own characteristics and applicable usage scenarios, and are usually used in combination. Specifically, first, a vibrating screen is used for rough screening to remove impurities with a large particle size difference from millet grains, and then an air flow screen is used for fine screening to remove impurities with a mass larger or smaller than that of millet, and finally a relatively pure millet product is obtained.

[0003] When the air flow screen is working, millet needs to be lifted to a high place, and a blowing device such as a blower is used to blow air from the side of the falling path of millet. Under the action of wind force, millet and other impurities will fall at different positions, thus realizing the screening of millet. The factors determining the screening effect of the air flow screen mainly include two points. The first point is the uniformity of wind force, and the second point is the uniformity of the spreading of millet when it falls. Among them, the first factor is relatively easy to control, and the wind force can be made uniform by selecting a blower with a relatively stable wind speed. However, the second factor is more difficult to control. Since in the prior art, methods such as manual material spreading and conveyor transportation are used for the falling of millet, the millet cannot be evenly scattered, resulting in a poor screening effect, and it often needs to be screened repeatedly many times to screen out the impurities. Summary of the Invention

[0004] The present invention provides an air flow blowing and drying device for millet production, aiming to solve the problem that when removing impurities from millet by air screening in the prior art, the millet cannot be evenly scattered, resulting in a poor screening effect, and it often needs to be screened repeatedly many times to screen out the impurities.

[0005] To achieve the above object, the technical solution adopted by the present invention is: to provide an air flow blowing and drying device for millet production, including: A screening box with a material falling cavity inside. A vertical first partition is provided in the material falling cavity. The first partition divides the material falling cavity into a first material falling channel and a second material falling channel. The upper parts of the first material falling channel and the second material falling channel are communicated with each other and penetrate through the top of the screening box to form a feed inlet. The bottom of the first material falling channel penetrates through the bottom of the screening box to form a first discharge outlet. The bottom of the second material falling channel penetrates through the bottom of the screening box to form a second discharge outlet. The first material falling channel is provided with an air inlet on the side far from the second material falling channel; A blowing assembly is arranged on one side of the screening box for blowing air into the air inlet; The uniform blanking component includes a bracket, a material box, and a first driving member. The bracket is provided at the top of the screening box. The material box has a material accommodating cavity, and the cross-section of the material accommodating cavity is fan-shaped. The central axis of the material accommodating cavity extends horizontally and is perpendicular to the air outlet direction of the air blowing component. The first driving member is used to drive the material box to rotate around the central axis of the material accommodating cavity; The first conveyor belt is provided below the screening box. The feeding end of the first conveyor belt is located below the first discharge port, and the discharging end of the first conveyor belt extends in a direction away from the screening box; and The drying and sunning component is provided above the first conveyor belt and has a heating surface facing the first conveyor belt.

[0006] In a possible implementation manner, a magnetic suction plate is further provided on the inner wall of the first blanking channel. The magnetic suction plate is provided on the inner wall of the first blanking channel on the side away from the second blanking channel.

[0007] In a possible implementation manner, the air inlet is strip-shaped, and the length direction of the air inlet extends parallel to the extending direction of the central axis of the material accommodating cavity; The air blowing component includes a plurality of first fans, and the plurality of first fans are arranged at intervals along the length direction of the air inlet in the air inlet.

[0008] In a possible implementation manner, the opening direction of the air inlet in the first blanking channel is inclined upward.

[0009] In a possible implementation manner, the millet production air blowing and sunning device further includes a feeding conveyor for conveying millet materials into the material box.

[0010] In a possible implementation manner, the feeding conveyor is a screw conveyor. The screw conveyor is inclined in the vertical direction. The lower end of the screw conveyor has a feeding hopper, and the top end of the screw conveyor is provided with a downward discharging port, and the discharging port is located above the material box.

[0011] In a possible implementation manner, the bracket is slidably provided on the screening box, and the sliding direction of the bracket is parallel to the spacing direction between the first blanking channel and the second blanking channel; there are two material boxes, and the two material boxes are arranged at intervals along the sliding direction of the bracket, and there are two first driving members corresponding to the material boxes; The air blowing component further includes a translation driving mechanism provided on the screening box for driving the bracket to slide so that the two material boxes are alternately located above the first blanking channel.

[0012] In a possible implementation, the uniform blanking assembly further includes a material guiding mechanism, and the material guiding mechanism includes: A material guiding plate is disposed below the blanking port and is rotatably engaged with the support. The rotation axis of the material guiding plate is parallel to the central axis of the material box. Two telescopic plates are respectively disposed at both ends of the material guiding plate. Two telescopic rods are respectively disposed on the lower surface of the material guiding plate and are correspondingly connected to the two telescopic plates one by one. The telescopic rods are used to drive the corresponding telescopic plates to extend or retract from the ends of the material guiding plate; and A second driving member is disposed on the support and is used to drive the material guiding plate to rotate.

[0013] In a possible implementation, the uniform blanking assembly further includes two material leveling mechanisms. The two material leveling mechanisms correspond to the two material boxes one by one. The material leveling mechanism is disposed below the corresponding material box. The material leveling mechanism has a vibrating end that can move up and down. The vibrating end abuts against the material box. The vibrating end is used to drive the corresponding material box to vibrate up and down when the screw conveyor conveys millet materials into the material box.

[0014] In a possible implementation, a second partition plate is further disposed in the sieve box. The second partition plate is disposed in the first blanking channel. The second partition plate is parallel to the first partition plate. An air blowing pipe facing the second partition plate is disposed on the second partition plate. The air inlet end of the air blowing pipe is communicated with a second fan. The second fan is disposed in the sieve box.

[0015] Compared with the prior art, the beneficial effects of a millet production air blowing and drying device provided by the present invention are: A millet production air blowing and drying device provided by the present invention includes a sieve box, a blowing assembly, a uniform blanking assembly, a first conveyor belt, and a drying and baking assembly. A first blanking channel and a second blanking channel are formed inside the sieve box. An air inlet is opened on the side wall of the first blanking channel. The blowing assembly blows air into the sieve box through the air inlet. The uniform blanking assembly is used to uniformly scatter millet materials into the first blanking channel. During the process of the millet materials falling along the first blanking channel, lighter impurities (such as chaff, dust, etc.) will be blown by the air flow to the upper part of the second blanking channel and fall along the second blanking channel, and are discharged through the second discharge port. The heavier millet materials continue to fall along the first blanking channel, fall onto the first conveyor belt below through the first discharge port, and are conveyed to a designated position by the first conveyor belt. A drying and baking assembly is disposed above the first conveyor belt, which can dry and bake the screened millet to avoid mildew during the later storage process due to moisture.

[0016] In the present invention, the uniform feeding component includes a bracket, a material box and a first driving member. The material box has a material accommodating cavity for storing millet materials. Since the radial cross-section of the material accommodating cavity is fan-shaped and the rotation axis of the material box is the center of the fan. One side of the material box adjacent to its own rotation axis is the discharging side. When the material box is turned over to pour the materials, only by controlling the material box to rotate uniformly through the first driving member, the millet materials can be poured into the feeding port uniformly and in a measured amount, and a relatively thin feeding layer can be formed during the feeding process, so that the air flow blown out from the air inlet can separate the millet and impurities more efficiently. The present invention realizes the uniform feeding of millet materials through the uniform feeding component, which helps to ensure the screening quality, thereby reducing the number of subsequent repeated screenings, saving time and workload, and improving the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings herein are incorporated into and constitute a part of this specification, showing embodiments consistent with the present application and, together with the specification, are used to explain the principles of the present application.

[0018] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] One or more embodiments are exemplarily illustrated by the pictures in the corresponding accompanying drawings. These exemplary illustrations do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, unless otherwise stated, and the drawings in the drawings do not constitute a proportional limitation.

[0020] Figure 1 A three-dimensional schematic diagram of a millet production air blowing and drying device provided by an embodiment of the present application; Figure 2 A front view of a millet production air blowing and drying device provided by an embodiment of the present application; Figure 3 For Figure 2 A cross-sectional view in the A-A direction of Figure 4 A three-dimensional schematic diagram of the millet production air blowing and drying device provided by an embodiment of the present application with the screw conveyor omitted; Figure 5 A three-dimensional schematic diagram of the uniform feeding component in the embodiment of the present application; Figure 6 An internal cross-sectional view of the uniform feeding component in the embodiment of the present application.

[0021] Description of the reference numerals in the drawings: 10. Sieve box; 11. Feed inlet; 12. First partition board; 13. First blanking channel; 14. Second blanking channel; 15. Air inlet; 16. Magnetic suction plate; 17. Second partition board; 18. Blowing pipe; 19. Air outlet; 20. Blowing assembly; 21. First fan; 22. Second fan; 30. Uniform blanking assembly; 31. Support; 32. Material box; 33. First driving member; 34. Translation driving mechanism; 35. Material guiding mechanism; 351. Material guiding plate; 352. Telescopic plate; 353. Telescopic rod; 36. Material leveling mechanism; 361. Vibration end; 40. First conveyor belt; 50. Drying and sunning assembly; 60. Screw conveyor; 61. Feeding hopper; 62. Blanking port; 70. Second conveyor belt. Detailed implementation manners

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0023] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0024] For ease of description, spatial relative relationship terms may be used in the text to describe the relative position relationship or movement of one element or feature shown in the figure relative to another element or feature. These relative relationship terms are, for example, "inside", "outside", "inner side", "outer side", "below", "beneath", "above", "over", "front", "rear", etc. Such spatial relative relationship terms are intended to include different orientations of the device during use or operation other than the orientations depicted in the figure. For example, if the device in the figure undergoes a position flip, attitude change, or motion state change, then these directional indications will change accordingly. For example, an element described as "below other elements or features" or "beneath other elements or features" will subsequently be oriented as "above other elements or features" or "over other elements or features". Therefore, the exemplary term "below" can include both the upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions), and the spatial relative relationship descriptors used in the text are interpreted accordingly.

[0025] Please refer to Figures 1 to 6 together, and a millet production air blowing and drying device provided by an embodiment of the present application will be described below.

[0026] In order to solve the technical problem that in the prior art, when an air screening device is used to screen and remove impurities from millet, the millet cannot be evenly scattered, resulting in poor screening effect, and it is often necessary to repeat the screening multiple times to screen out the impurities, the present application provides a millet production air blowing and drying device, which can achieve the uniform scattering of millet materials, enable better separation of millet and impurities under the action of air flow, and can improve the screening effect and efficiency. And it can also perform heat drying on the screened millet to prevent the millet from deteriorating during later storage due to moisture.

[0027] Specifically, please refer to Figures 1 to 3 , a millet production air blowing and drying device provided by an embodiment of the present invention includes a screening box 10, a blowing assembly 20, a uniform feeding assembly 30, a first conveyor belt 40, and a drying and baking assembly 50.

[0028] The interior of the screening box 10 has a blanking cavity, and a vertical first partition 12 is provided in the blanking cavity. The first partition 12 divides the blanking cavity into a first blanking channel 13 and a second blanking channel 14. The upper parts of the first blanking channel 13 and the second blanking channel 14 communicate with each other and penetrate through the top of the screening box 10 to form a feed inlet 11. The bottom of the first blanking channel 13 penetrates through the bottom of the screening box 10 to form a first discharge port, and the bottom of the second blanking channel 14 penetrates through the bottom of the screening box 10 to form a second discharge port. An air inlet 15 is provided on one side of the first blanking channel 13 away from the second blanking channel 14; a blowing assembly 20 is arranged on one side of the screening box 10 for blowing air into the air inlet 15; the uniform blanking assembly 30 includes a bracket 31, a material box 32 and a first driving member 33. The bracket 31 is arranged on the top of the screening box 10. The material box 32 has a material containing cavity, and the cross-section of the material containing cavity is fan-shaped. The central axis of the material containing cavity extends horizontally and is perpendicular to the air outlet direction of the blowing assembly 20. The first driving member 33 is used to drive the material box 32 to rotate around the central axis of the material containing cavity; a first conveyor belt 40 is arranged below the screening box 10, and the feeding end of the first conveyor belt 40 is located below the first discharge port. The discharging end of the first conveyor belt 40 extends in a direction away from the screening box 10; a drying and sunning assembly 50 is arranged above the first conveyor belt 40 and has a heating surface facing the first conveyor belt 40.

[0029] Compared with the prior art, the beneficial effects of a millet production air blowing and sunning device provided by an embodiment of the present invention are as follows: A millet production air blowing and sunning device provided by an embodiment of the present invention includes a screening box 10, a blowing assembly 20, a uniform blanking assembly 30, a first conveyor belt 40 and a drying and sunning assembly 50. A first blanking channel 13 and a second blanking channel 14 are formed inside the screening box 10. An air inlet 15 is provided on the side wall of the first blanking channel 13, and the blowing assembly 20 blows air into the screening box 10 through the air inlet 15. The uniform blanking assembly 30 is used to uniformly scatter millet materials into the first blanking channel 13. During the process of the millet materials falling along the first blanking channel 13, lighter materials (such as chaff, dust, etc.) will be blown by the air flow to the upper part of the second blanking channel 14 and fall along the second blanking channel 14 and are discharged through the second discharge port. The heavier millet materials continue to fall along the first blanking channel 13, fall onto the first conveyor belt 40 below through the first discharge port, and are conveyed to a designated position by the first conveyor belt 40. A drying and sunning assembly 50 is arranged above the first conveyor belt 40, which can dry and sun the screened millet to avoid mildew during the later storage process due to dampness.

[0030] The uniform material dropping component 30 in the present invention includes a bracket 31, a material box 32 and a first driving member 33. The material box 32 has a material holding cavity for storing millet material. Since the radial cross-section of the material holding cavity is fan-shaped, and the rotation axis of the material box 32 is the center of the fan-shaped circle. The side of the material box 32 adjacent to its own rotation axis is the discharge side. When the material box 32 flips and dumps the material, it only needs to control the uniform rotation of the material box 32 through the first driving member 33, so that the millet material can be poured into the feed port 11 at a uniform speed and in a uniform amount, and a thinner material dropping layer can be formed during the material dropping process, so that the airflow blown out from the air inlet 15 can more efficiently separate the millet and impurities. The present invention realizes the uniform material dropping of the millet material through the uniform material dropping component 30, which helps to ensure the screening quality, thereby reducing the number of subsequent repeated screenings, saving time and workload, and improving screening efficiency.

[0031] The screen box 10 may be a metal shell structure, with a hollow interior to form a material-dropping cavity, and a first partition plate 12 is disposed in the material-dropping cavity to separate the first material-dropping channel 13 and the second material-dropping channel 14. When the millet material falls, the air inlet 15 blows out airflow, and the millet falls from the first material-dropping channel 13 onto the first conveyor belt 40, and the impurities fall from the second material-dropping channel 14 onto the second conveyor belt 70, so that the millet and the impurities are separated. Common impurities include husks, straw residues, dust, and the like. The screen box 10 is provided with an air outlet 19 on the side away from the air inlet 15, and the air outlet 19 can be connected to a dust collector to prevent dust. Common dust collectors include bag dust collectors, cyclone dust collectors, and the like.

[0032] The blowing component 20 is arranged at the position of the air inlet 15. The blowing component 20 can adopt an existing blower without limitation on its specific specifications and models, as long as it can generate an airflow with a suitable wind speed as required.

[0033] The uniform material dropping assembly 30 includes a bracket 31, a material box 32 and a first driving member 33. The bracket 31 is arranged on the top of the screen box 10. The material box 32 is in the shape of a quarter cylinder placed upside down. The material box 32 has a material receiving cavity with a fan-shaped cross section. The top of the material receiving cavity is open for easy filling of millet material. Before work, the millet material to be screened is conveyed into the material box 32 by a feeding conveyor to fill the material box 32.

[0034] The rotation axis of the material box 32 is located at the position of its own central axis. The first driving member 33 can be a mechanical device such as a motor that can output rotational motion. The first driving member 33 drives the material box 32 to rotate at a constant speed through gear transmission, belt transmission, etc. The cross-section of the material accommodating cavity of the material box 32 is fan-shaped, and the discharge side of the material box 32 is located on the side of the material box 32 adjacent to the rotating shaft. The length of the discharge side of the material box 32 is the same as the axial length of the material accommodating cavity. During the process of the material box 32 rotating and pouring the millet material at a constant speed, the amount of millet material poured can be kept constant, so as to achieve uniform speed and uniform amount of material falling. A relatively thin material falling layer can be formed during the material falling period, which is convenient for the air flow to blow the millet and impurities apart.

[0035] The first conveyor belt 40 and the second conveyor belt 70 are respectively used to convey millet and impurities. A drying component 50 is arranged above the first conveyor belt 40, which uses an electric heating tube to generate heat to provide heat, and dries the millet during the conveying process to ensure that the millet is dry.

[0036] Please refer to Figure 3 In some possible embodiments, a magnetic suction plate 16 is further provided on the inner wall of the first material falling channel 13. The magnetic suction plate 16 is arranged on the inner wall of the first material falling channel 13 on the side far from the second material falling channel 14. The magnetic suction plate 16 is used to adsorb the iron impurities that may be contained during the falling process of the millet. The magnetic suction plate 16 can adopt a permanent magnet, an electromagnet, etc. The magnetic suction plate 16 is detachably installed, which is convenient for removing the adsorbed impurities for cleaning.

[0037] Please refer to Figure 1 、 Figure 3 and Figure 4 In some possible embodiments, the air inlet 15 is strip-shaped, and the length direction of the air inlet 15 extends parallel to the extending direction of the central axis of the material accommodating cavity; the blowing component 20 includes a plurality of first fans 21, and the plurality of first fans 21 are arranged at intervals along the length direction of the air inlet 15.

[0038] In this embodiment, the plurality of first fans 21 adopt products of the same model and specification. The plurality of first fans 21 are arranged along the length direction of the air inlet 15, which is suitable for the scenario when the axial length of the material box 32 is relatively long, and can generate an air flow with uniform wind force. In order to further improve the uniformity of the air flow, a flow equalizing plate can be arranged at the air inlet 15. The flow equalizing plate is composed of a plurality of parallel grid bars, and the inclination angle of the grid bars can be adjusted to guide the air flow.

[0039] Please refer to Figure 3 and Figure 4, in some possible embodiments, the opening direction of the air inlet 15 in the first blanking channel 13 is inclined upward, for example, it can be inclined at an angle of 45°, 60°, etc. with the horizontal plane. With such a setting, an upwardly inclined air flow can be formed, which helps to blow the impurities to a farther position, making the separation of impurities and millet more thorough.

[0040] Please refer to Figure 1 and Figure 2 , in some possible embodiments, a millet production air blowing and drying device further includes a feeding conveyor for conveying millet materials into the material box 32. The feeding conveyor can be a common belt conveyor, screw conveyor 60, etc.

[0041] Please refer to Figure 1 and Figure 2 , in some possible embodiments, the feeding conveyor is a screw conveyor 60. The screw conveyor 60 is inclined in the up and down direction. The lower end of the screw conveyor 60 has a feeding hopper 61, and the top end of the screw conveyor 60 is provided with a downward blanking port 62, and the blanking port 62 is located above the material box 32. The millet materials to be screened are put in from the feeding hopper 61 at the lower end, discharged from the blanking port 62 at the top end, and enter the material box 32.

[0042] Please refer to Figure 1 , Figure 4 , Figure 5 and Figure 6 , in some possible embodiments, the bracket 31 is slidably arranged in the screening box 10, and the sliding direction of the bracket 31 is parallel to the spacing direction of the first blanking channel 13 and the second blanking channel 14; there are two material boxes 32, and the two material boxes 32 are arranged at intervals along the sliding direction of the bracket 31, and two first driving members 33 are correspondingly arranged for the material boxes 32; the blowing assembly 20 further includes a translation driving mechanism 34 arranged in the screening box 10 for driving the bracket 31 to slide so that the two material boxes 32 are alternately located above the first blanking channel 13.

[0043] In this embodiment, there are two material boxes 32 on the bracket 31. When one material box 32 is dumping materials, the other material box 32 can be loaded, so that the downtime waiting time can be reduced and the efficiency can be improved. The translation driving mechanism 34 and the bracket 31 drive the two material boxes 32 to alternately be in the material dumping position and the material loading position. The translation driving mechanism 34 can be a telescopic electric rod, a telescopic hydraulic cylinder, etc.

[0044] Please refer to Figures 3 to 6, in some possible embodiments, the uniform feeding assembly 30 further includes a material guiding mechanism 35. The material guiding mechanism 35 includes a material guiding plate 351, two telescopic plates 352, two telescopic rods 353, and a second driving member. The material guiding plate 351 is disposed below the material discharging opening 62 and is rotationally engaged with the bracket 31. The rotation axis of the material guiding plate 351 is parallel to the central axis of the material box 32; the two telescopic plates 352 are respectively disposed at both ends of the material guiding plate 351; the two telescopic rods 353 are respectively disposed on the lower surface of the material guiding plate 351 and are connected to the two telescopic plates 352 in a one-to-one correspondence. The telescopic rod 353 is used to drive the corresponding telescopic plate 352 to extend or retract from the end of the material guiding plate 351; the second driving member is disposed on the bracket 31 and is used to drive the material guiding plate 351 to rotate.

[0045] In this embodiment, the function of the material guiding mechanism 35 is to guide the material conveyed by the screw conveyor 60 to the corresponding material box 32 through the inclined material guiding plate 351. In order to take into account the feeding of the two material boxes 32, the material guiding mechanism 35 inevitably needs to be designed to be relatively long. Since the material guiding plate 351 needs to be flipped during operation, in order to avoid interference between the material guiding plate 351 and other structures during the flipping process, telescopic rods 353 and telescopic plates 352 are provided at both ends of the material guiding plate 351 for extending the ends of the material guiding plate 351. The second driving member can be a motor, which drives the material guiding plate 351 to rotate through methods such as gear transmission and belt transmission, and guides the millet material into the corresponding material box 32.

[0046] Please refer to Figures 3 to 6 , in some possible embodiments, the uniform feeding assembly 30 further includes two material leveling mechanisms 36. The two material leveling mechanisms 36 correspond to the two material boxes 32 one by one. The material leveling mechanism 36 is disposed below the corresponding material box 32. The material leveling mechanism 36 has a vibrating end 361 that can move up and down, and the vibrating end 361 abuts against the material box 32.

[0047] The vibrating end 361 is used to drive the corresponding material box 32 to vibrate up and down when the screw conveyor 60 conveys the millet material into the material box 32. The material leveling mechanism 36 can be a vibrating motor, a telescopic electric rod that can be telescoped up and down, etc. Its function is to make the millet material in the material box 32 evenly distributed by applying an up and down vibrating force to the material box 32. With such a setting, when pouring the millet material into the feeding port 11, the millet material can be more evenly dispersed, which helps to ensure uniform and constant feeding.

[0048] Please refer to Figure 3, in some possible embodiments, a second partition 17 is further provided in the screening box 10. The second partition 17 is arranged in the first blanking channel 13. The second partition 17 is parallel to the first partition 12. An air blowing pipe 18 facing the second partition 17 is provided on the second partition 17. The air blowing pipe 18 can be installed on the second partition 17 by means of bolts, welding, etc. The air inlet end of the air blowing pipe 18 is communicated with a second fan 22. The second fan 22 is arranged in the screening box 10. By blowing air through the second fan 22 and the air blowing pipe 18, impurities with a weight close to that of millet can be blown into the second blanking channel 14, making the impurity separation more thorough.

[0049] In the above embodiments, the descriptions of the various embodiments have their own focuses. For parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0050] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, provided that these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these changes and modifications.

[0051] The above is the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should be covered by the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An air-blowing and sun-drying device for millet production, characterized in that, Comprising: A sieve box (10) with a blanking cavity inside. A vertical first partition plate (12) is provided in the blanking cavity. The first partition plate (12) divides the blanking cavity into a first blanking channel (13) and a second blanking channel (14). The upper parts of the first blanking channel (13) and the second blanking channel (14) communicate with each other and penetrate through the top of the sieve box (10) to form a feed inlet (11). The bottom of the first blanking channel (13) penetrates through the bottom of the sieve box (10) to form a first discharge outlet. The bottom of the second blanking channel (14) penetrates through the bottom of the sieve box (10) to form a second discharge outlet. An air inlet (15) is provided on one side of the first blanking channel (13) away from the second blanking channel (14). A blowing assembly (20) is provided on one side of the sieve box (10) for blowing air into the air inlet (15). A uniform blanking assembly (30) includes a bracket (31), a material box (32), and a first driving member (33). The bracket (31) is provided on the top of the sieve box (10). The material box (32) has a material containing cavity. The cross-section of the material containing cavity is fan-shaped. The central axis of the material containing cavity extends horizontally and is perpendicular to the air outlet direction of the blowing assembly (20). The first driving member (33) is used to drive the material box (32) to rotate around the central axis of the material containing cavity. A first conveyor belt (40) is provided below the sieve box (10). The feeding end of the first conveyor belt (40) is located below the first discharge outlet. The discharging end of the first conveyor belt (40) extends in a direction away from the sieve box (10). And A drying and sunning assembly (50) is provided above the first conveyor belt (40) and has a heating surface facing the first conveyor belt (40).

2. The air-blowing and sun-drying device for millet production according to claim 1, characterized in that, A magnetic suction plate (16) is further provided on the inner wall of the first blanking channel (13). The magnetic suction plate (16) is provided on the inner wall of the first blanking channel (13) on the side away from the second blanking channel (14).

3. The air-blowing and sun-drying device for millet production according to claim 1, characterized in that, The air inlet (15) is strip-shaped, and the length direction of the air inlet (15) extends parallel to the extending direction of the central axis of the material containing cavity. The blowing assembly (20) includes a plurality of first fans (21). The plurality of first fans (21) are spaced along the length direction of the air inlet (15) and are provided at the air inlet (15).

4. The air-blowing and sun-drying device for millet production according to claim 1, characterized in that, The opening direction of the air inlet (15) is inclined upward.

5. The air-blowing and sun-drying device for millet production according to claim 1, characterized in that, The millet production air blowing and sunning device further includes a feeding conveyor for conveying millet materials into the material box (32).

6. The air-blowing and sun-drying device for millet production according to claim 5, characterized in that The feeding conveyor is a screw conveyor (60). The screw conveyor (60) is inclined in the up and down direction. The lower end of the screw conveyor (60) has a feeding hopper (61). The top end of the screw conveyor (60) is provided with a downward discharging port (62). The discharging port (62) is located above the material box (32).

7. The air-blowing and sun-drying device for millet production according to claim 6, characterized in that, The bracket (31) is slidably arranged on the sieve box (10), and the sliding direction of the bracket (31) is parallel to the spacing direction between the first blanking channel (13) and the second blanking channel (14); there are two material boxes (32), and the two material boxes (32) are arranged at intervals along the sliding direction of the bracket (31), and there are two first driving members (33) corresponding to the material boxes (32); The blowing assembly (20) further includes a translation driving mechanism (34), and the translation driving mechanism (34) is arranged on the sieve box (10) and is used to drive the bracket (31) to slide so that the two material boxes (32) are alternately located above the first blanking channel (13).

8. The air-blowing and sun-drying device for millet production according to claim 7, characterized in that, The uniform blanking assembly (30) further includes a material guiding mechanism (35), and the material guiding mechanism (35) includes: A material guiding plate (351) is arranged below the blanking port (62) and is rotationally matched with the bracket (31), and the rotation axis of the material guiding plate (351) is parallel to the central axis of the material box (32); Two telescopic plates (352) are respectively arranged at both ends of the material guiding plate (351); Two telescopic rods (353) are respectively arranged on the lower surface of the material guiding plate (351) and are correspondingly connected to the two telescopic plates (352), and the telescopic rods (353) are used to drive the corresponding telescopic plates (352) to extend or retract from the ends of the material guiding plate (351); and A second driving member is arranged on the bracket (31) and is used to drive the material guiding plate (351) to rotate.

9. The air-blowing and sun-drying device for millet production according to claim 7, characterized in that, The uniform blanking assembly (30) further includes two material leveling mechanisms (36), and the two material leveling mechanisms (36) correspond to the two material boxes (32) one by one. The material leveling mechanism (36) is arranged below the corresponding material box (32), and the material leveling mechanism (36) has a vibration end (361) that can move up and down. The vibration end (361) abuts against the material box (32), and the vibration end (361) is used to drive the corresponding material box (32) to vibrate up and down when the screw conveyor (60) conveys millet materials into the material box (32).

10. The air-blowing and sun-drying device for millet production according to claim 1, characterized in that, A second partition plate (17) is further arranged in the sieve box (10), and the second partition plate (17) is arranged in the first blanking channel (13). The second partition plate (17) is parallel to the first partition plate (12). An air blowing pipe (18) facing the second partition plate (17) is arranged on the second partition plate (17), and the air inlet end of the air blowing pipe (18) is communicated with a second fan (22), and the second fan (22) is arranged in the sieve box (10).

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