Grain winnowing machine
By designing a grain air picker with a simple and compact structure, using the combination of air picking chamber and feeding device, the efficient separation of heavy and light mixed food is achieved, and the problems of large space, high cost and poor wind selection effect of existing equipment are solved, which is suitable for industrial production applications.
Patent Information
- Application Number
- CN202420924081.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-29
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-04-29
AI Technical Summary
The existing grain wind selection equipment has problems such as complex structure, large space, high cost and poor wind selection effect, which is difficult to meet the needs of industrial production.
A grain air selector with a simple and compact structure is designed, including an air selection chamber and a feeding device. The air selection chamber is equipped with a horizontally spaced air inlet and air outlet, and the air input and output are realized through the air supply device or the exhaust device. The bottom is equipped with a heavy and miscellaneous outlet, a grain outlet and a light and miscellaneous outlet. Combined with the discharge adjustment component and a locking mechanism, an efficient air selection of grain is achieved.
It realizes separate separation of heavy and light grains, especially easy to deal with rice insects and packaging bag thread heads, good wind selection effect, small equipment space, and meets the needs of industrial production.
Smart Images
Figure CN222625370U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of grain processing equipment, in particular to a grain winnowing machine. Background Art
[0002] In the industrial production of rice, wheat and other grains, it is an important link to use wind separation equipment to remove impurities such as small stones, crushed grains, rice weevils, husks, and packaging bag threads from grains. Wind separation equipment is usually a component of large-scale grain processing equipment, and there are many types of existing grain wind separation equipment. Among them, the grain wind separation machine based on the principle of traditional rural grain windmills is widely used because of its simple structure and low cost, but this wind separation mode is usually only suitable for small batches and single-unit applications. At the same time, the assembly line wind separation equipment commonly used in grain processing plants needs to be equipped with multiple transmission equipment such as feeding, discharging, and removing debris, which occupies a large design space, resulting in the entire device being too large in size, requiring a large one-time investment, and affecting the subsequent technical upgrade of the production line. At the same time, the grain wind separation machine based on the principle of traditional rural grain windmills also has the problems of poor adaptability, difficulty in meeting the needs of industrial production applications, and poor wind separation effect. Utility Model Content
[0003] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a grain air separator with simple and compact structure, small equipment volume, good air separation effect and conformity to industrial production application.
[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0005] A grain air separator comprises an air separator chamber and a feeding device, wherein the air separator chamber is provided with an air inlet and an air outlet arranged horizontally at intervals, the air inlet is connected to an air supply device or the air outlet is connected to an air exhaust device, a feeding port connected to the feeding device is provided between the air inlet and the air outlet, and the bottom of the air separator chamber is also provided with a heavy impurity outlet, a grain outlet and a light impurity outlet arranged in sequence from the air inlet to the air outlet.
[0006] As a further improvement of the above technical solution:
[0007] A discharge adjustment component is provided between the heavy impurity outlet and the grain outlet and / or between the grain outlet and the light impurity outlet. The discharge adjustment component includes a baffle plate extending upward from the bottom surface of the air separation chamber, and a gap is provided between the baffle plate and the top surface of the air separation chamber. The baffle plate is installed in the air separation chamber in a manner that the height of the extended end can be adjusted.
[0008] The baffle plate is hingedly installed in the air selection chamber and can swing around the hinge axis to adjust the height of the extension end. The baffle plate is provided with a first locking mechanism for fixing the baffle plate.
[0009] The first locking mechanism includes a locking screw and a slot plate arranged on the grain winnowing machine. The slot plate is provided with an arc-shaped slot. The locking screw passes through the arc-shaped slot and is threadedly connected to the baffle plate and can lock and loosen the baffle plate by twisting.
[0010] The air supply device comprises a chamber communicated with an air inlet, a rotary blade installed in the chamber, and a motor driving the rotary blade to rotate.
[0011] The air inlet and the air outlet are respectively arranged at the opposite ends of the air selection chamber.
[0012] A feed adjustment plate extending downward from the top of the air selection chamber is provided on the side opposite to the feed port and the air inlet. The feed adjustment plate is hingedly installed in the air selection chamber and can swing around the hinge axis to adjust the height of the lower end of the feed adjustment plate. The feed adjustment plate is provided with a second locking mechanism for fixing the feed adjustment plate.
[0013] A material blocking plate extending downward from the top of the air selection chamber is arranged between the material feed port and the air inlet. The upper part of the material blocking plate is hingedly installed in the air selection chamber and can swing freely around the hinge axis.
[0014] Compared with the prior art, the advantages of the utility model are:
[0015] When the grain winnowing machine of the utility model is working, the grain to be winnowed is fed into the winnowing chamber from the feeding port through the feeding device, and the wind of a certain speed is input into the winnowing chamber from the air outlet by the air supply device, so that the grain can be winnowed, heavy impurities such as small stones are dropped from the heavy impurity outlet, solid grain is dropped from the grain outlet, and light impurities such as melted and broken grains, rice weevils, husks and packaging bag thread ends are dropped from the light impurity outlet, and clean wind is discharged from the air outlet, so that the heavy impurities and the light impurities can be effectively separated from the grain separately, and it is especially convenient to separate the rice weevils and packaging bag thread ends in the grain separately for centralized treatment, and the clean wind is discharged separately from the air outlet and centralized treatment, so that the rice weevils and packaging bag thread ends are avoided to be discharged together with the wind and are not convenient to be collected and blown to the workshop environment, which is more in line with industrial production application, has the advantages of simple and compact structure, low cost and good winnowing effect, can greatly reduce the space occupied by the grain winnowing machine, and facilitate the optimization of the production plant layout required for the grain processing device. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is the main structural principle diagram of the grain air separator in Example 1.
[0017] Figure 2 for Figure 1 Enlarged structural diagram at A in the middle.
[0018] Figure 3 This is a top view structural principle diagram of the grain air separator in Example 1.
[0019] Figure 4 This is a side view structural principle diagram of the grain air separator in Example 1.
[0020] Figure 5 This is a structural principle diagram of the first locking mechanism in Example 1.
[0021] Figure 6 This is the main structural principle diagram of the grain air separator in Example 2.
[0022] Figure 7 This is the right view structural principle diagram of the grain air separator in Example 2.
[0023] Figure 8 This is the left-side structural principle diagram of the grain air separator in Example 2.
[0024] Legend:
[0025] 1. Air selection chamber; 11. Air inlet; 12. Air outlet; 13. Feed inlet; 14. Heavy impurity outlet; 15. Grain outlet; 16. Light impurity outlet; 2. Feeding device; 31. Air supply device; 32. Exhaust device; 4. Material baffle plate; 5. Locking screw; 6. Slot plate; 61. Arc groove; 7. Feed adjusting plate; 8. Material blocking plate; 9. Adjusting valve. DETAILED DESCRIPTION
[0026] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0027] Embodiment 1:
[0028] like Figures 1 to 4As shown, the grain air separator of this embodiment includes an air separation chamber 1 and a feeding device 2. The air separation chamber 1 is provided with an air inlet 11 and an air outlet 12 arranged horizontally at intervals. The air inlet 11 is connected to the air supply device 31 or the air outlet 12 is connected to the exhaust device 32. A feeding port 13 connected to the feeding device 2 is provided between the air inlet 11 and the air outlet 12. A heavy impurity outlet 14, a grain outlet 15 and a light impurity outlet 16 are also provided at the bottom of the air separation chamber 1, which are arranged in sequence from the air inlet 11 to the air outlet 12. When the grain winnowing machine is working, the grain to be winnowed is fed into the winnowing chamber 1 from the feed port 13 by the feed device 2, and the wind of a certain speed is input into the winnowing chamber 1 from the air outlet 12 by the air supply device 31, so that the winnowing of the grain can be realized, and heavy impurities such as small stones are dropped from the heavy impurity outlet 14, and strong grains are dropped from the grain outlet 15, and light impurities such as melted and broken rice weevils, husks and packaging bag thread ends are dropped from the light impurity outlet 16, and clean wind is discharged from the air outlet 12, so that the heavy impurities and the light impurities can be effectively separated from the grain separately, and it is especially convenient to separate the rice weevils and packaging bag thread ends in the grain separately for centralized treatment, and the clean wind is discharged and centralized from the air outlet 12 separately, so that the rice weevils and packaging bag thread ends are avoided to be discharged together with the wind and are not convenient to be collected and blown to the workshop environment, which is more in line with industrial production application, and has the advantages of simple and compact structure, low cost and good winnowing effect, and the space occupied by the grain winnowing machine can be greatly reduced, and the optimization of the production plant layout required for the grain processing device is convenient.
[0029] In this embodiment, a discharge adjustment component is provided between the heavy impurity outlet 14 and the grain outlet 15 and / or between the grain outlet 15 and the light impurity outlet 16. The discharge adjustment component includes a baffle plate 4 extending upward from the bottom surface of the air selection chamber 1, and there is a gap between the baffle plate 4 and the top surface of the air selection chamber 1. The baffle plate 4 is installed in the air selection chamber 1 in a manner that the height of the extended end can be adjusted. The height of the extended end of the baffle plate 4 is adjustable, that is, the size of the gap between the baffle plate 4 and the top surface of the air selection chamber 1 is adjustable. By adjusting the size of the pores, it can be adjusted to ensure that the heavy impurities, light impurities and grains are output from the corresponding outlets respectively, and by adjusting the size of the pores, it can also be adapted to the air selection of different grains, which is also convenient for debugging and production when targeting different grains. In other embodiments, the discharge adjustment component can also be provided only between the heavy impurity outlet 14 and the grain outlet 15, or only between the grain outlet 15 and the light impurity outlet 16 as needed.
[0030] In this embodiment, the baffle plate 4 is hingedly installed in the air selection chamber 1 and can swing around the hinge axis to adjust the height of the extension end. The baffle plate 4 is provided with a first locking mechanism for fixing the baffle plate 4. This installation structure of the baffle plate 4 has the advantages of simple structure, low cost, and easy installation and adjustment. The baffle plate 4 can be arranged in an inclined manner to reduce the air intake of the heavy impurity outlet 14, the grain outlet 15, and the light impurity outlet 16, and greatly reduce the adverse effects of wind entering the heavy impurity outlet 14, the grain outlet 15, and the light impurity outlet 16. At the same time, the baffle plate 4 adopts a hinged installation form to adjust the height of the extension end, which is not only convenient for manufacturing and maintenance, but also easy to adjust.
[0031] In this embodiment, Figure 5 As shown, the first locking mechanism includes a locking screw 5 and a slot plate 6 provided on the grain air separator. The slot plate 6 is provided with an arc groove 61. The locking screw 5 passes through the arc groove 61 and is threadedly connected to the baffle plate 4 and can lock and loosen the baffle plate 4 by screwing. When the locking screw 5 is loosened, the locking effect on the baffle plate 4 is released, and the baffle plate 4 can swing to adjust the angle. When the baffle plate 4 swings, it moves along the arc groove 61 with the locking screw 5. After the baffle plate 4 adjusts the angle, the locking screw 5 can be tightened to lock and fix the baffle plate 4 and the slot plate 6. The first locking mechanism has the advantages of simple structure, low cost, and easy adjustment. The above-mentioned first locking mechanism can also adopt other existing technologies, as long as the baffle plate 4 can be fixed at any angle within its adjustable range.
[0032] In this embodiment, the air supply device 31 includes a chamber connected to the air inlet 11, a rotary blade installed in the chamber, and a motor driving the rotary blade to rotate. The motor drives the rotary blade to rotate, so that wind can be generated in the chamber and blown into the air selection chamber 1 from the air inlet 11.
[0033] In this embodiment, the air inlet 11 and the air outlet 12 are respectively disposed at opposite ends of the air selection chamber 1, which is beneficial to improving the compactness of the structure while ensuring the air selection effect.
[0034] In this embodiment, a feed adjustment plate 7 extending downward from the top of the air selection chamber 1 is provided on the side of the feed port 13 facing away from the air inlet 11. The feed adjustment plate 7 is hingedly installed in the air selection chamber 1 and can swing around the hinge axis to adjust the height of the lower end of the feed adjustment plate 7. The feed adjustment plate 7 is provided with a second locking mechanism for fixing the feed adjustment plate 7. By adjusting the height of the lower end of the feed adjustment plate 7, the starting height of the grain being blown to the air outlet 12 after entering the air selection chamber 1 can be adjusted, so that the movement path can be adjusted for different grains, ensuring the independent separation of heavy impurities, light impurities and grains, and ensuring the separation effect. The above-mentioned second locking mechanism can adopt existing technology, for example, it can be set with reference to the above-mentioned first locking mechanism.
[0035] In this embodiment, a material blocking plate 8 extending downward from the top of the air selection chamber 1 is provided between the feed port 13 and the air inlet 11, and the upper portion of the material blocking plate 8 is hingedly installed in the air selection chamber 1 and can swing freely around the hinge axis, so as to prevent grain from entering the air supply device 31 from the air inlet 11 and affecting its normal operation.
[0036] Embodiment 2:
[0037] like Figures 6 to 8 As shown, the grain air separator of this embodiment is basically the same as that of embodiment 1, the main difference being that, in this embodiment, the air inlet 11 is not connected to the air supply device 31, but the air outlet 12 is connected to the exhaust device 32, and the exhaust device 32 can be a fan connected to the air outlet 12 through a pipeline, and negative pressure air is extracted from the air outlet 12 through the exhaust device 32, and wind flowing from the air inlet 11 to the air outlet 12 can also be generated in the air separation chamber 1, thereby achieving the air separation of grain. The grain air separator of this embodiment also has the advantages of simple and compact structure, low cost, and good air separation effect, so that clean air is discharged from the air outlet 12 alone and processed centrally, which is in line with industrial production applications. The above-mentioned exhaust device 32 can be an exhaust fan.
[0038] In this embodiment, preferably, the air outlet 12 is provided with a regulating valve 9 for adjusting the size of the air outlet 12, so as to adjust the flow rate of the air in the air selection chamber 1, and to facilitate control to ensure the air selection effect.
[0039] The space occupied by the grain winnowing machine of this embodiment is greatly reduced. For example, the size of the grain winnowing machine with a processing capacity of 20 tons / hour can be less than 2800*1000*1600 meters in length, width and height, and a large space is left under the feeding device, and other equipment or components can be arranged crosswise, which can facilitate the optimized layout of the production plant of the grain winnowing machine and grain processing device.
[0040] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, improvements and changes obtained without departing from the technical concept of the present invention should also be regarded as the protection scope of the present invention.
Claims
1. A grain winnowing machine, characterized in that: The invention comprises an air selection chamber (1) and a feeding device (2), wherein the air selection chamber (1) is provided with an air inlet (11) and an air outlet (12) arranged horizontally at intervals, the air inlet (11) is connected to an air supply device (31) or the air outlet (12) is connected to an air exhaust device (32), a feeding port (13) connected to the feeding device (2) is provided between the air inlet (11) and the air outlet (12), and the bottom of the air selection chamber (1) is also provided with a heavy impurity outlet (14), a grain outlet (15) and a light impurity outlet (16) arranged in sequence from the air inlet (11) to the air outlet (12); A discharge adjustment component is provided between the heavy impurity outlet (14) and the grain outlet (15) and / or between the grain outlet (15) and the light impurity outlet (16), the discharge adjustment component comprising a baffle plate (4) extending upward from the bottom surface of the air separation chamber (1), a gap being provided between the baffle plate (4) and the top surface of the air separation chamber (1), and the baffle plate (4) being installed in the air separation chamber (1) in such a way that the height of the extension end can be adjusted; The baffle plate (4) is hingedly mounted in the air separation chamber (1) and can swing around the hinge axis to adjust the height of the extended end; the baffle plate (4) is provided with a first locking mechanism for fixing the baffle plate (4); The first locking mechanism comprises a locking screw (5) and a slot plate (6) provided on the grain winnowing machine, the slot plate (6) being provided with an arcuate slot (61), the locking screw (5) passing through the arcuate slot (61) and being threadably connected to the baffle plate (4) and being able to lock and loosen the baffle plate (4) by screwing.
2. The grain winnowing machine according to claim 1, characterized in that: The air supply device (31) comprises a chamber connected to the air inlet (11), a rotary blade installed in the chamber, and a motor driving the rotary blade to rotate.
3. The grain winnowing machine according to claim 1, characterized in that: The air inlet (11) and the air outlet (12) are respectively arranged at opposite ends of the air selection chamber (1).
4. The grain winnowing machine according to any one of claims 1 to 3, characterized in that: A feed adjustment plate (7) extending downward from the top of the air selection chamber (1) is provided on the side of the feed port (13) facing away from the air inlet (11); the feed adjustment plate (7) is hingedly mounted in the air selection chamber (1) and can swing around a hinge axis to adjust the height of the lower end of the feed adjustment plate (7); and the feed adjustment plate (7) is provided with a second locking mechanism for fixing the feed adjustment plate (7).
5. The grain winnowing machine according to any one of claims 1 to 3, characterized in that: A material blocking plate (8) extending downward from the top of the air selection chamber (1) is provided between the material feed port (13) and the air inlet port (11); the upper portion of the material blocking plate (8) is hingedly mounted in the air selection chamber (1) and can swing freely around a hinge axis.