Grain drying tower with good turnover effect

Abstract

This utility model provides a grain drying tower with good turning effect, belonging to the technical field of grain drying towers. It includes a tower body with a feed inlet at the top and a discharge outlet at the bottom. Several air inlet and outlet channels are respectively opened on opposite sides of the tower body, staggered vertically. Several air inlet pipes and air outlet pipes are fixed to the inner wall of the tower body, with the air inlet pipes connected to the air inlet channels and the air outlet pipes connected to the air outlet channels. This utility model uses a turning plate. Grain falling from the feed inlet falls onto the turning plate and is turned over to below the air outlet pipe. During this process, the grain can be turned over, creating a more complex flow path, thus preventing the grain from sticking together and increasing the contact area with the high-temperature gas, thereby improving the drying effect. Furthermore, the grain turned over to below the air outlet pipe can fully contact the high-temperature gas, further improving the drying effect.

Description

Technical Field

[0001] This utility model relates to the field of grain drying tower technology, and in particular to a grain drying tower with good turning effect. Background Technology

[0002] A grain drying tower is a large vertical piece of equipment used for grain drying. It mainly consists of a heating system, a ventilation system, a conveying system, and a control system. By introducing hot air into the tower and allowing it to fully contact the grain to be dried, the moisture in the grain is removed, reducing the grain's moisture content and meeting the requirements for safe storage, transportation, and subsequent processing. It is widely used in the post-harvest processing of various grains such as wheat, corn, and rice. The grain drying tower has symmetrically arranged air inlet and outlet channels. An air inlet pipe is installed at the air inlet channel, and an air outlet pipe is installed at the air outlet channel. The heated high-temperature gas enters the grain drying tower through the air inlet pipe and exits from the bottom of the air inlet pipe. After exiting, it comes into contact with the grain. During the grain drying process, the water vapor generated enters the bottom of the air outlet pipe and is then discharged from the air outlet channel.

[0003] When grain enters the grain drying tower from the feed inlet, it is diverted only through a triangular air inlet or outlet pipe. The diverted grain then continues to fall downwards, where it is dried. During this process, the grain's flow path is relatively simple, and there is a possibility that the contact with the high-temperature gas is insufficient, thus affecting the drying effect. Therefore, this application provides a grain drying tower with good tumbling effect to meet the requirements. Utility Model Content

[0004] This invention provides a grain drying tower with good tumbling effect to solve the problem that the grain has a relatively simple flow path and may not have sufficient contact with high-temperature gas, thus affecting the drying effect.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A grain drying tower with good turning effect includes a tower body, a feed inlet at the top of the tower body, a discharge outlet at the bottom of the tower body, and several air inlet channels and air outlet channels on opposite sides of the tower body, the air inlet channels and air outlet channels being staggered vertically. Several air inlet pipes and air outlet pipes are fixed to the inner wall of the tower body, the air inlet pipes being connected to the air inlet channels, and the air outlet pipes being connected to the air outlet channels. The tower also includes: The flipping mechanism includes two flipping plates symmetrically installed above the air outlet pipe, with the two flipping plates located on both sides of the air inlet pipe; The grain that falls from the feed inlet falls onto the flipping plate and flips over to the bottom of the air outlet pipe.

[0006] Preferably, the bottom of the flipping plate is fixed with a hollow mounting base, which is fixed to the side of the air outlet pipe. The side of the mounting base is provided with several through holes, so that the grain falling from below the air inlet pipe slides along the surface of the air outlet pipe and is discharged from the through holes.

[0007] Preferably, the inner wall of the through hole is provided with a guide surface, which is used to guide the grain through the through hole.

[0008] Preferably, the top of the flip plate is provided with an air inlet, which is connected to the internal cavity of the mounting base. The top of the inner wall of the through hole is provided with an air outlet, through which part of the high-temperature gas discharged from the air inlet pipe enters the air inlet and is discharged from the air outlet.

[0009] Preferably, a filter screen is fixed to the inner wall of the air inlet, and the filter screen is used to prevent grain from entering the air inlet.

[0010] Preferably, the mounting base has a second vent hole on the side away from the guide surface, and part of the high-temperature gas entering the mounting base is discharged from the second vent hole.

[0011] Preferably, a connecting rod is fixed to the surface of the flip plate, and the end of the connecting rod is fixed to the surface of the air intake pipe.

[0012] Preferably, the connecting rod is curved.

[0013] Compared with the prior art, this utility model has at least the following beneficial effects: In the above scheme, by setting up a flipping plate, some of the grain falling from the feed inlet falls onto the flipping plate and flips along the flipping plate to below the air outlet pipe. During this process, the grain can be flipped, and the flow path is more complex, thereby avoiding the grain from sticking together and increasing the contact area with the high-temperature gas, thus improving the drying effect. Secondly, the grain flipped to below the air outlet pipe can fully contact the high-temperature gas, thereby further improving the drying effect of the grain.

[0014] By setting a mounting base, a through hole, and a guide surface, the mounting base is used to fix the flipping plate, the through hole is used for grain to pass through the mounting base, and the guide surface is used to prevent grain from accumulating at the through hole of the mounting base.

[0015] By setting up an air inlet, a filter, and an air outlet, some of the high-temperature gas discharged from the air inlet pipe enters the air inlet and exits through the air outlet. The high-temperature gas discharged from the air outlet can come into contact with the grain at the through hole again, achieving a second drying of the grain. Secondly, the high-temperature gas blowing on the surface of the air outlet pipe can increase the temperature of the air outlet pipe and prevent water vapor from condensing on the inner wall of the air outlet pipe due to the large temperature difference between the air outlet pipe and water vapor during the grain drying process, thereby preventing the condensed dripping water vapor from affecting the drying effect.

[0016] By setting vent two, part of the high-temperature gas entering the mounting base is discharged from vent one, and part is discharged from vent two. The high-temperature gas discharged from vent two blows onto the vent pipe, which can heat the vent pipe more fully and prevent water vapor from condensing. Secondly, the vent two allows the high-temperature gas to flow at the bottom of the mounting base, increasing the surface temperature of the mounting base and transferring it to the vent pipe through heat transfer, thereby reheating the vent pipe. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the tower body structure of this utility model; Figure 3 This is a schematic diagram of the flipping mechanism of this utility model; Figure 4 This is a schematic diagram of the air intake pipe structure of this utility model; Figure 5 This is a schematic diagram of the mounting base structure of this utility model.

[0018] In the diagram: 1. Tower body; 2. Inlet pipe; 3. Outlet pipe; 4. Tilting mechanism; 5. Tilting plate; 6. Mounting base; 7. Through hole; 8. Guide surface; 9. Inlet hole; 10. Outlet hole one; 11. Outlet hole two; 12. Connecting rod; 13. Filter screen. Detailed Implementation

[0019] The following is a detailed description of a grain drying tower with good turning effect provided by this utility model, in conjunction with the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0020] like Figures 1-5 As shown, an embodiment of this utility model provides a grain drying tower with good turning effect, including a tower body 1. The top of the tower body 1 has a feed inlet, and the bottom of the tower body 1 has a discharge outlet. Several air inlet channels and air outlet channels are respectively opened on opposite sides of the tower body 1, and the air inlet channels and air outlet channels are staggered vertically. Several air inlet pipes 2 and air outlet pipes 3 are fixed to the inner wall of the tower body 1. The air inlet pipes 2 are connected to the air inlet channels, and the air outlet pipes 3 are connected to the air outlet channels. The tower body 1 also includes: The flipping mechanism 4 includes two flipping plates 5 symmetrically installed above the air outlet pipe 3. The two flipping plates 5 are located on both sides of the air inlet pipe 2, and the flipping plates 5 are made of metal. Grain falling from the feed inlet falls onto the flipping plate 5 and flips along the plate to below the exhaust pipe 3. The air inlet channel allows high-temperature gas to enter, and the exhaust channel allows water vapor to exit. The staggered arrangement of the plates increases the efficiency of gas-grain contact. The air inlet pipe 2 evenly delivers high-temperature gas into the tower body 1, and the exhaust pipe 3 is used to discharge water vapor. The flipping plate 5 receives part of the falling grain and guides it to flip to below the exhaust pipe 3, increasing the grain flipping frequency and flow path complexity, preventing grain from sticking together, increasing the contact area with high-temperature gas, improving the drying effect, and ensuring that the flipped grain fully contacts the high-temperature gas, further improving the drying uniformity.

[0021] like Figure 4 and Figure 5 As shown in this embodiment, a hollow mounting base 6 is fixed to the bottom of the flipping plate 5. The mounting base 6 is fixed to the side of the air outlet pipe 3. Several through holes 7 are opened on the side of the mounting base 6. Grain falling from below the air inlet pipe 2 slides along the surface of the air outlet pipe 3 and is discharged through the through holes 7. The mounting base 6 realizes the fixed connection between the flipping plate 5 and the air outlet pipe 3, provides stable support for the flipping plate 5, and ensures that the flipping plate 5 does not shake when receiving grain. The through holes 7 provide a discharge channel for the grain sliding along the air outlet pipe 3, avoids the grain from accumulating in the mounting base 6, and allows grain falling from different paths to flow smoothly downwards, ensuring the continuity of the drying process. The mounting base 6 is made of metal.

[0022] like Figure 4 and Figure 5 As shown in this embodiment, a guide surface 8 is provided on the inner wall of the through hole 7. The guide surface 8 is used to guide the grain through the through hole 7. The guide surface 8 plays a guiding role for the grain passing through the through hole 7, reducing the flow resistance of the grain at the through hole 7, avoiding the grain from accumulating on the inner wall of the through hole 7 due to jamming, ensuring that the grain passes through the through hole 7 quickly and smoothly, and preventing uneven drying or blockage caused by accumulation.

[0023] like Figure 4 and Figure 5 As shown in this embodiment, the top of the flipping plate 5 is provided with an air inlet 9, which is connected to the internal cavity of the mounting base 6. The top of the inner wall of the through hole 7 is provided with an air outlet 10. The high-temperature gas discharged from the air inlet pipe 2 enters the air inlet 9 and is discharged from the air outlet 10. The air inlet 9 allows part of the high-temperature gas discharged from the air outlet pipe 3 to enter the interior of the mounting base 6. The air outlet 10 guides the high-temperature gas to the grain at the through hole 7, thereby achieving secondary drying of this part of the grain and improving the drying effect. At the same time, when the high-temperature gas flows through the mounting base 6, it heats the air outlet pipe 3, reduces the temperature difference between the air outlet pipe 3 and the water vapor, prevents the water vapor from condensing on the inner wall of the air outlet pipe 3, and avoids the condensed water droplets falling back into the grain and affecting the drying quality.

[0024] like Figure 4 and Figure 5As shown in this embodiment, a filter screen 13 is fixed to the inner wall of the air inlet 9. The filter screen 13 is used to prevent grain from entering the air inlet 9. The filter screen 13 blocks grain particles from entering the air inlet 9, thus preventing the air inlet 9, the internal cavity of the mounting base 6 and the air outlet 10 from being blocked by grain, and ensuring the smooth flow of high-temperature gas.

[0025] like Figure 4 As shown in this embodiment, an air outlet 11 is provided on the side of the mounting base 6 away from the guide surface 8. Some of the high-temperature gas entering the mounting base 6 is discharged from the air outlet 11. The air outlet 11 allows some of the high-temperature gas in the mounting base 6 to be directly blown onto the surface of the air outlet pipe 3, enhancing the heating effect on the air outlet pipe 3 and further preventing water vapor condensation. At the same time, the high-temperature gas flows at the bottom of the mounting base 6, heating the surface of the mounting base 6, and reheating the air outlet pipe 3 through heat transfer, improving the anti-condensation effect, avoiding excessive pressure in the mounting base 6 from affecting gas flow, and ensuring the overall airflow stability.

[0026] like Figure 4 and Figure 5 As shown in this embodiment, a connecting rod 12 is fixed to the surface of the flipping plate 5. The end of the connecting rod 12 is fixed to the surface of the air inlet pipe 2. The connecting rod 12 connects the flipping plate 5 and the air inlet pipe 2, providing additional support for the flipping plate 5 and enhancing the structural stability of the flipping plate 5 when it receives grain.

[0027] like Figure 4 and Figure 5 As shown in this embodiment, the connecting rod 12 is curved. The curved connecting rod 12 has better elastic deformation capability. When the turning plate 5 receives grain and is impacted, the connecting rod 12 can buffer the impact force through slight deformation, avoiding the impact force from being directly transmitted to the air inlet pipe 2 or the connection of the turning plate 5, which would cause damage to the components and extend the service life of the equipment.

[0028] Working principle: Grain is fed into the feed port at the top of the tower body 1. During the falling process, some grain falls onto the flipping plate 5 of the flipping mechanism 4 and flips along the flipping plate 5 to the area below the air outlet pipe 3. The other part of the grain falls directly from the area below the air inlet pipe 2. High-temperature gas enters the air inlet pipe 2 through the air inlet channel of tower body 1 and is discharged from the air inlet pipe 2 to dry the falling grain; The grain falling from below the air inlet pipe 2 slides along the surface of the air outlet pipe 3, enters the hollow mounting base 6 at the bottom of the flipping plate 5, is guided by the guide surface 8 on the inner wall of the through hole 7, and is discharged from the through hole 7. Part of the high-temperature gas discharged from the exhaust pipe 3 enters the internal cavity of the mounting base 6 through the air inlet 9 at the top of the flipping plate 5. Part of it is discharged from the exhaust hole 10 at the top of the inner wall of the through hole 7, and comes into contact with the grain at the through hole 7 to dry it again. The other part is discharged from the exhaust hole 211 on the side of the mounting base 6 away from the guide surface 8, and blows onto the exhaust pipe 3 to heat it. The dried grain continues to fall and is eventually discharged from the outlet at the bottom of the tower 1. During the process, the grain that is not caught by the turning plate 5 continues to dry in contact with the high-temperature gas discharged from the air inlet pipe 2 and the air outlet pipe 3.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A grain drying tower with good turning effect, comprising a tower body (1), wherein a feed inlet is provided at the top of the tower body (1), a discharge outlet is provided at the bottom of the tower body (1), and a plurality of air inlet channels and air outlet channels are respectively provided on opposite sides of the tower body (1), the air inlet channels and air outlet channels are staggered vertically, and a plurality of air inlet pipes (2) and air outlet pipes (3) are fixed on the inner wall of the tower body (1), the air inlet pipes (2) are connected to the air inlet channels, and the air outlet pipes (3) are connected to the air outlet channels, characterized in that, Also includes: The flipping mechanism (4) includes two flipping plates (5) symmetrically installed above the air outlet pipe (3), and the two flipping plates (5) are located on both sides of the air inlet pipe (2); The grain that falls from the feed inlet falls onto the flipping plate (5) and flips along the flipping plate (5) to the bottom of the air outlet (3).

2. The grain drying tower with good turning effect according to claim 1, characterized in that, The bottom of the flipping plate (5) is fixed with a hollow mounting base (6). The mounting base (6) is fixed on the side of the air outlet pipe (3). Several through holes (7) are opened on the side of the mounting base (6). Grain falling from below the air inlet pipe (2) slides along the surface of the air outlet pipe (3) and is discharged from the through holes (7).

3. The grain drying tower with good turning effect according to claim 2, characterized in that, The inner wall of the through hole (7) is provided with a guide surface (8), which is used to guide the grain through the through hole (7).

4. The grain drying tower with good turning effect according to claim 2, characterized in that, The top of the flip plate (5) is provided with an air inlet (9), which is connected to the internal cavity of the mounting base (6). The top of the inner wall of the through hole (7) is provided with an air outlet (10). The high-temperature gas discharged from the air inlet pipe (2) partially enters the air inlet (9) and is discharged from the air outlet (10).

5. The grain drying tower with good turning effect according to claim 4, characterized in that, A filter screen (13) is fixed to the inner wall of the air inlet (9). The filter screen (13) is used to prevent grain from entering the air inlet (9).

6. The grain drying tower with good turning effect according to claim 4, characterized in that, The mounting base (6) has an air outlet (11) on the side away from the guide surface (8), and part of the high-temperature gas entering the mounting base (6) is discharged from the air outlet (11).

7. The grain drying tower with good turning effect according to claim 1, characterized in that, A connecting rod (12) is fixed to the surface of the flip plate (5), and the end of the connecting rod (12) is fixed to the surface of the air intake pipe (2).

8. The grain drying tower with good turning effect according to claim 7, characterized in that, The connecting rod (12) is curved.

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