Grain dryer capable of uniform drying

Abstract

The utility model relates to the technical field of grain drying, and disclose a kind of grain dryer that can be dried evenly, including drying bin, the side outer wall of drying bin is fixedly installed with air duct, the sidewall of drying bin is perforated with multiple ventilation slots, and the inside of drying bin and air duct is communicated, the outer wall of drying bin is fixedly installed feed cylinder above air duct, and the bottom surface of drying bin is fixedly installed with discharge cylinder.In the utility model, by setting the discharging plate of multiple layers staggered in drying bin, and by eccentric wheel swing of discharging plate driven by rotation, the movable end of discharging plate is periodically lifted or put down by the rotation of eccentric wheel, so that each layer of discharging plate produces regular swing, and the movement path and residence time of grain in drying bin are greatly extended when discharging plate swings, so that different positions of grain can obtain sufficient and relatively equal hot air drying treatment, and finally reach uniform drying state when discharging from the lowermost layer of discharging plate through discharge cylinder.

Description

Technical Field

[0001] This utility model relates to the field of grain drying technology, and in particular to a grain dryer that can dry grains evenly. Background Technology

[0002] Grain drying is a crucial step in ensuring grain quality and reducing post-harvest losses. However, traditional grain drying equipment often faces the problem of poor drying uniformity in practical applications. On the one hand, static or simply moving grain layers easily lead to uneven hot air penetration, with the surface grain becoming overly dry or even scorched, while the grain in the interior or bottom layers retains moisture due to poor ventilation and insufficient heating time, affecting the overall drying effect and storage safety. On the other hand, during the drying process, grain is prone to accumulating or clumping due to its own gravity or airflow, hindering hot air circulation and further exacerbating uneven drying.

[0003] Furthermore, complex transmission mechanisms are often required to move or turn grain within the drying chamber. These mechanisms, exposed to harsh environments, are susceptible to dust, moisture corrosion, or foreign object contamination, leading to unstable operation or even malfunctions, thus affecting the reliability of continuous operation and the consistent guarantee of drying uniformity. Therefore, we propose a grain dryer capable of uniform drying. Utility Model Content

[0004] The present invention aims to solve the technical problems existing in the prior art and provide a grain dryer that can dry grains evenly.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a grain dryer capable of uniform drying, comprising a drying chamber, an air duct fixedly installed on one side of the outer wall of the drying chamber, multiple ventilation slots penetrating through the side wall of the drying chamber to connect the interior of the drying chamber and the air duct, a feeding cylinder fixedly installed above the air duct on the outer wall of the drying chamber, a discharging cylinder fixedly installed on the bottom surface of the drying chamber, multiple feeding plates arranged inside the drying chamber, the multiple feeding plates being divided into two groups, the two groups of feeding plates being staggered on both sides of the interior of the drying chamber, and eccentric wheels rotatably installed on the bottom surface of the movable ends of the multiple feeding plates inside the drying chamber, the eccentric wheels driving the movable ends of the feeding plates to swing when rotating.

[0006] Preferably, a second rotating shaft is rotatably installed inside the drying chamber at a position corresponding to multiple eccentric wheels. The eccentric wheels are located at both ends of the second rotating shaft. One end of the second rotating shaft passes through the corresponding position on the drying chamber and extends to the outer wall of the drying chamber. A gear is rotatably installed on the outer wall of the drying chamber. The gear is fixedly connected to the end of the second rotating shaft. A sliding rod is also slidably installed on the outer wall of the drying chamber. Multiple tooth blocks that mesh with the gear are fixedly installed on the outer wall of the sliding rod near the gear. An electric telescopic rod is fixedly installed on the outer wall of the drying chamber at the lower end of the sliding rod. The output end of the electric telescopic rod is fixedly connected to the lower end of the sliding rod.

[0007] Preferably, a protective cover is fixedly installed on the outer wall of the drying chamber, and the gear and sliding rod are both located inside the protective cover.

[0008] Preferably, a dryer is fixedly installed on the bottom surface of the air duct, and the output end of the dryer extends into the interior of the air duct.

[0009] Preferably, a grid plate is fixedly installed inside each of the multiple ventilation slots, and an air guide plate is fixedly installed on the inner wall of the air duct at the corresponding position of the multiple ventilation slots.

[0010] Preferably, a baffle plate is fixedly installed at the uppermost part of the interior of the air duct, and the baffle plate is inclined.

[0011] Preferably, a guide block is fixedly installed on the bottom surface of the feed cylinder, and the upper surface of the guide block is inclined. Beneficial effects

[0012] This utility model provides a grain dryer that can dry grains evenly. It has the following beneficial effects:

[0013] (1) The grain dryer that can dry evenly has multiple layers of staggered feeding plates in the drying chamber and the feeding plates are driven to swing by the rotation of the eccentric wheel. When the eccentric wheel rotates, its outer edge periodically lifts or lowers the movable end of the feeding plate, so that each layer of feeding plate swings regularly. When the feeding plate swings, on the one hand, it continuously shakes the grain layer on the feeding plate, effectively breaking the grain accumulation and clumping tendency, increasing the gap between grain particles, and creating a more uniform and unobstructed penetration channel for hot air, ensuring that the grain particles come into contact with hot air in all directions; on the other hand, when the feeding plate swings to the downward tilting state, the grain slides down to the adjacent feeding plate below in the shaking, which greatly prolongs the movement path and residence time of the grain in the drying chamber, so that the grain in different positions can be fully and relatively evenly dried by hot air, and finally achieves a uniform drying state when discharged from the bottom feeding plate through the discharge cylinder. Attached Figure Description

[0014] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0015] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the drying chamber of this utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the drying chamber and air duct structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the air duct of this utility model;

[0020] Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0021] Figure 6 This is a schematic diagram of the inclined state of the feeding plate of this utility model.

[0022] Legend: 1. Drying chamber; 2. Protective cover; 3. Air duct; 4. Dryer; 5. Feed cylinder; 6. Discharge cylinder; 7. Discharge plate; 8. First rotating shaft; 9. Eccentric wheel; 10. Second rotating shaft; 11. Gear; 12. Sliding rod; 13. Tooth block; 14. Electric telescopic rod; 15. Baffle plate; 16. Mesh plate; 17. Guide block; 18. Air guide plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 1-6As shown, a grain dryer 4 capable of uniformly drying grain includes a drying chamber 1. An air duct 3 is fixedly installed on one outer wall of the drying chamber 1. Multiple ventilation slots are formed through the side wall of the drying chamber 1, connecting the interior of the drying chamber 1 and the air duct 3. A feed cylinder 5 is fixedly installed above the air duct 3 on the outer wall of the drying chamber 1. A discharge cylinder 6 is fixedly installed on the bottom surface of the drying chamber 1. Multiple discharge plates 7 are arranged inside the drying chamber 1, divided into two groups. The two groups of discharge plates 7 are staggered on both sides of the interior of the drying chamber 1. Eccentric wheels 9 are rotatably installed on the bottom surface of the movable ends of the multiple discharge plates 7 inside the drying chamber 1. When the eccentric wheels 9 rotate, they drive the movable ends of the discharge plates 7 to swing; discharging... During the swinging process, the grain on the upper surface of the feeding plate 7 can be shaken, which increases the gap between the grains and facilitates the drying of the grains by hot air. On the other hand, when the feeding plate 7 swings to a downward tilted state, the grain on the upper surface of the feeding plate 7 can be guided to the upper surface of another feeding plate 7 during the shaking process. The multiple feeding plates 7 are distributed in layers and staggered inside the drying chamber 1, which can prolong the time that the grains stay inside the drying chamber 1, ensuring that the hot air output from the dryer 4 dries the grains evenly. When the grains fall from the end of the feeding plate 7 located at the bottom inside the drying chamber 1, they can be discharged outward through the inside of the discharge cylinder 6. At this time, the discharged grains are in a dried state.

[0025] like Figure 5 As shown, inside the drying chamber 1, a second rotating shaft 10 is rotatably mounted at a position corresponding to multiple eccentric wheels 9. The eccentric wheels 9 are located at both ends of the second rotating shaft 10. One end of the second rotating shaft 10 passes through the corresponding position on the drying chamber 1 and extends to the outer wall of the drying chamber 1. A gear 11 is rotatably mounted on the outer wall of the drying chamber 1. The gear 11 is fixedly connected to the end of the second rotating shaft 10. A sliding rod 12 is also slidably mounted on the outer wall of the drying chamber 1. Multiple tooth blocks 13 that mesh with the gear 11 are fixedly mounted on the outer wall of the sliding rod 12 near the gear 11. The lower end of the sliding rod 12 is fixedly mounted on the outer wall of the drying chamber 1. The device is equipped with an electric telescopic rod 14, the output end of which is fixedly connected to the lower end of the sliding rod 12. The electric telescopic rod 14 drives the sliding rod 12 to slide up and down. Multiple toothed blocks 13 fixedly installed on the outer wall of the sliding rod 12 are simultaneously meshed with multiple gears 11. When the protective cover 2 slides up and down, it can drive multiple gears 11 to rotate simultaneously. In turn, the second rotating shaft 10 fixedly connected to the gears 11 drives multiple eccentric wheels 9 to rotate simultaneously. When the eccentric wheels 9 rotate, different positions on their outer walls contact the bottom surface of the movable end of the feeding plate 7, which allows the movable end of the feeding plate 7 to move up and down.

[0026] like Figure 1As shown, a protective cover 2 is fixedly installed on the outer wall of the drying chamber 1, and the gear 11 and the sliding rod 12 are both located inside the protective cover 2. The protective cover 2 can protect the gear 11 and the sliding rod 12, and can prevent foreign objects from getting stuck at the connection between the gear 11 and the sliding rod 12, thus affecting the meshing between them.

[0027] like Figure 3 As shown, a dryer 4 is fixedly installed on the bottom surface of the air duct 3, and the output end of the dryer 4 extends into the interior of the air duct 3. The dryer 4 is existing technology and will not be described in detail here. The output end of the dryer 4 can output hot air into the interior of the air duct 3, and then enter the interior of the drying chamber 1 through the ventilation slot to dry the grain.

[0028] like Figure 4 As shown, a grid plate 16 is fixedly installed inside each of the multiple ventilation slots, and an air guide plate 18 is fixedly installed on the inner wall of the air duct 3 at the corresponding positions of the multiple ventilation slots. The multiple air guide plates 18 can guide the hot air generated by the dryer 4, so that the hot air can enter the interior of the drying chamber 1 through different ventilation slots, so that the hot air can evenly contact the grain at different heights inside the drying chamber 1. The grid plate 16 can prevent the grain from falling from the ventilation slot into the interior of the air duct 3.

[0029] like Figure 3 As shown, a baffle plate 15 is fixedly installed at the uppermost part of the air duct 3. The baffle plate 15 is inclined. The periphery of the baffle plate 15 is fixedly connected to the inner wall of the air duct 3. The upper end of the air duct 3 can be blocked by the baffle plate 15. At the same time, the inclined baffle plate 15 can guide the hot air output from the dryer 4 to the ventilation slot.

[0030] like Figure 3 As shown, a guide block 17 is fixedly installed on the bottom surface of the feed cylinder 5, and the upper surface of the guide block 17 is inclined. The inclined upper surface of the guide block 17 can assist the grain in the feed cylinder 5 to enter the interior of the drying chamber 1, and avoid some grain being left in the feed cylinder 5 and wasting it.

[0031] The working principle of this utility model is as follows: During use, the grain to be dried is continuously fed into the drying chamber 1 from the feed cylinder 5. After entering the drying chamber 1, the grain is placed on the uppermost discharge plate 7. Multiple circular holes are drilled through the discharge plate 7. Each of the multiple discharge plates 7 located inside the drying chamber 1 has a continuously rotating eccentric wheel 9 on its movable bottom surface. As the eccentric wheel 9 rotates, it continuously acts on the movable bottom surface of the discharge plate 7, causing the discharge plate 7 to swing around the first rotating shaft 8. During this process, the hot air generated by the dryer 4 is input into the drying chamber 1 through the air duct 3 and the ventilation slots on the drying chamber 1. The discharge plate 7 swings during this process. The grain on the upper surface of the feeding plate 7 can be shaken, which increases the gap between the grains and facilitates the drying of the grains by hot air. On the other hand, when the feeding plate 7 swings to a downward tilted state, the grain on the upper surface of the feeding plate 7 can be guided to the upper surface of another feeding plate 7 during the shaking process. The multiple feeding plates 7 are distributed in layers and staggered inside the drying chamber 1, which can prolong the time that the grain stays in the drying chamber 1, ensuring that the hot air output from the dryer 4 dries the grain evenly. When the grain falls from the end of the feeding plate 7 located at the bottom inside the drying chamber 1, it can be discharged outward through the inside of the discharge cylinder 6. At this time, the discharged grain is in a dried state.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A grain dryer capable of uniformly drying grains, comprising a drying chamber (1), characterized in that: A duct (3) is fixedly installed on one side of the drying chamber (1). Multiple ventilation slots are opened through the side wall of the drying chamber (1) to connect the interior of the drying chamber (1) and the duct (3). A feed cylinder (5) is fixedly installed on the outer wall of the drying chamber (1) above the duct (3). A discharge cylinder (6) is fixedly installed on the bottom surface of the drying chamber (1). Multiple discharge plates (7) are set inside the drying chamber (1). The multiple discharge plates (7) are divided into two groups. The two groups of discharge plates (7) are respectively located on both sides of the interior of the drying chamber (1) and are staggered. An eccentric wheel (9) is rotatably installed on the bottom surface of the movable end of the multiple discharge plates (7) inside the drying chamber (1). When the eccentric wheel (9) rotates, it drives the movable end of the discharge plate (7) to swing.

2. The grain dryer capable of uniform drying according to claim 1, characterized in that: The drying chamber (1) is equipped with a second rotating shaft (10) at a position corresponding to multiple eccentric wheels (9). The eccentric wheels (9) are located at both ends of the second rotating shaft (10). One end of the second rotating shaft (10) passes through the corresponding position on the drying chamber (1) and extends to the outer wall of the drying chamber (1). A gear (11) is rotatably installed on the outer wall of the drying chamber (1). The gear (11) is fixedly connected to the end of the second rotating shaft (10). A sliding rod (12) is also slidably installed on the outer wall of the drying chamber (1). Multiple tooth blocks (13) that mesh with the gear (11) are fixedly installed on the outer wall of the sliding rod (12) near the gear (11). An electric telescopic rod (14) is fixedly installed on the lower end of the sliding rod (12) on the outer wall of the drying chamber (1). The output end of the electric telescopic rod (14) is fixedly connected to the lower end of the sliding rod (12).

3. A grain dryer capable of uniformly drying grain according to claim 2, characterized in that: The outer wall of the drying chamber (1) is fixedly equipped with a protective cover (2), and the gear (11) and sliding rod (12) are both located inside the protective cover (2).

4. A grain dryer capable of uniformly drying grain according to claim 3, characterized in that: A dryer (4) is fixedly installed on the bottom surface of the air duct (3), and the output end of the dryer (4) extends into the interior of the air duct (3).

5. A grain dryer capable of uniformly drying grain according to claim 4, characterized in that: A grid plate (16) is fixedly installed inside each of the ventilation slots, and a guide plate (18) is fixedly installed on the inner wall of the air duct (3) at the corresponding position of the ventilation slots.

6. A grain dryer capable of uniformly drying grain according to claim 5, characterized in that: A baffle plate (15) is fixedly installed at the uppermost part of the interior of the air duct (3), and the baffle plate (15) is inclined.

7. A grain dryer capable of uniform drying according to claim 6, characterized in that: The bottom surface of the feed cylinder (5) is fixedly installed with a guide block (17), and the upper surface of the guide block (17) is inclined.

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