Air distribution uniform grain drying tower

Abstract

The utility model relates to the technical field of grain drying tower, and disclose a kind of grain drying tower of air distribution uniformity, utilize the hot air guide of multiple groups of air guide connecting pipe of setting in air guide side seat side part, air guide connecting pipe is along longitudinal equal-interval distribution and can realize the segmented uniformity of hot air in drying cylinder seat guide, guarantee the uniformity of hot air in drying cylinder seat circulation, avoid the problem that grain drying is not uniform due to local heating, drying ball cage is effectively increased with the drying contact area of grain material, beneficial to the promotion of grain drying efficiency, drying ball cage and air guide connecting pipe work communication, utilize the inner cavity diffusion of drying ball cage can be convenient hot air circulation diffusion, guarantee the drying uniformity of grain material, drying ball cage increases in diameter from top to bottom in turn, can be sequentially supported and guided to the grain material falling in the initial stage of grain lifting and drying, extend the residence time of grain in drying zone, can realize the efficient drying of grain material in initial stage, beneficial to the promotion of device work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of grain drying tower technology, specifically a grain drying tower with uniform air distribution. Background Technology

[0002] Grains refer to cereals used by humans for food, including wheat, rice, corn, oats, barley, buckwheat, sorghum, etc. In the process of grain production and storage, in order to extend the shelf life of grains and prevent problems such as mold and pests, it is often necessary to dry the harvested grains. Grain drying towers are important grain drying equipment. Grain drying towers are equipped with hot air supply ducts. The high temperature energy generated by the hot air furnace is blown into the air supply duct by a blower, and then sent into the drying tower to dry the grains inside the drying tower.

[0003] In terms of structure, existing grain drying towers mostly adopt a straight cylinder or single spherical cage-type drying air guide structure. Due to the limited air guide contact area and uneven air delivery, there is a problem of uneven air distribution, resulting in inconsistent drying degrees in different parts of the grain. The area near the air inlet is over-dried due to the large air volume, and may even scorch. On the other hand, the area far from the air inlet has insufficient air volume, and the moisture evaporates slowly, failing to achieve the ideal drying effect. Therefore, a grain drying tower with uniform air distribution is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a grain drying tower with uniform air distribution to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grain drying tower with uniform air distribution, comprising a drying cylinder, a bottom support, and a drying mechanism, wherein the drying cylinder is supported and installed on the upper part of the bottom support, and a discharge end pipe is provided on the lower side of the drying cylinder; The drying mechanism includes an air guide assembly and a material conveying assembly. The material conveying assembly includes a drive motor, a lifting conveying cylinder, and a spiral conveying rod. The lifting conveying cylinder is installed in the middle of the inner cavity of the drying cylinder. The spiral conveying rod is driven to rotate and installed inside the lifting conveying cylinder by the drive motor. Open slots are provided on both the upper and lower sides of the lifting conveying cylinder. The air guide assembly includes an air guide side seat, an air guide connecting pipe, and a drying cylinder seat. The drying cylinder seat is installed outside the lifting conveyor cylinder. Drying ball cages are installed at equal intervals on the upper part of the drying cylinder seat. The air guide side seat is connected to the drying ball cages through the air guide connecting pipe.

[0006] Preferably, the lower part of the drying cylinder is inverted conical, and a support ring seat is fixed to the upper part of the bottom support. The support ring seat is fixedly installed to the lower part of the drying cylinder by bolts.

[0007] Preferably, the drying cylinder has a drying cavity in the middle, and the discharge end pipe is fixedly installed at the lower side of the drying cylinder in an inclined shape, and the discharge end pipe is connected to the drying cavity.

[0008] Preferably, the lower part of the lifting conveyor cylinder is fixedly installed to the mounting base provided in the lower part of the drying inner cavity by bolts, and a support end seat is fixedly installed on the upper part of the drying cylinder body. The upper end of the lifting conveyor cylinder is fixedly installed to the support part in the middle of the support end seat by bolts.

[0009] Preferably, the aforementioned spiral conveyor rod is mounted inside the lifting conveyor cylinder by means of a fixed-axis support column, the support part of the drive motor is fixedly installed to the lower part of the drying cylinder by bolts, the drive shaft end of the drive motor is fixedly installed to the lower shaft end of the spiral conveyor rod, and the two sets of open slots are respectively opened through the upper and lower sides of the lifting conveyor cylinder.

[0010] Preferably, the aforementioned air guide side seat is fixedly installed on the outer side of the drying cylinder, and multiple air guide connecting pipes are provided. Several air guide connecting pipes are evenly and uniformly fixedly connected and installed on the inner side of the air guide side seat at equal intervals. A hot air connecting pipe is fixedly connected and installed at the lower part of the air guide side seat.

[0011] Preferably, the aforementioned drying cylinder seat is fitted onto the outside of the lifting conveyor cylinder. Both the upper and lower ends of the drying cylinder seat are fixed with docking end seats, which are fixedly supported and installed to the cylinder wall side of the lifting conveyor cylinder by bolts. An arc-shaped material guide seat is fixedly installed on the upper part of the drying cylinder seat.

[0012] Preferably, the drying ball cage is a spherical enclosure, and the drying ball cage is fixedly installed in the middle of the drying cylinder base at equal intervals. The diameter of the drying ball cage increases from top to bottom. The end of the air guide pipe is fixedly connected to the side of the drying ball cage. Drying air holes are evenly opened through the circumference of the drying cylinder base and the drying ball cage.

[0013] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects: 1. This grain drying tower adopts a multi-point air supply drying working structure. It uses multiple sets of air guide pipes set on the side of the air guide seat to guide hot air. The air guide pipes are evenly distributed in the longitudinal direction to achieve segmented and uniform delivery of hot air in the drying cylinder, ensuring uniform circulation of hot air in the drying cylinder and avoiding the problem of uneven grain drying caused by local heating. This is conducive to improving the uniformity and stability of grain drying.

[0014] 2. Multiple sets of drying ball cages are installed at the upper part of the drying cylinder. The spherical design of the drying ball cages effectively increases the drying contact area with the grain material, which is beneficial to improving the drying efficiency. The drying ball cages are connected to the air guide pipes, and the internal cavity of the drying ball cages facilitates the circulation and diffusion of hot air, ensuring the uniformity of grain drying. The diameter of the drying ball cages increases from top to bottom. In the initial stage of grain lifting and drying, the falling grain material can be supported and guided sequentially, extending the residence time of the grain in the drying zone. This can achieve efficient drying of the grain material in the initial stage, which is beneficial to improving the working efficiency of the device. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall installation upper structure of this utility model; Figure 2 This is a schematic diagram of the overall installation lower structure of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the drying cylinder of this utility model. Figure 4 This is a schematic diagram of the working installation structure of the lifting conveyor cylinder and the drying cylinder seat of this utility model. Figure 5 This is a schematic diagram of the working installation structure of the air guide side seat and the drying cylinder seat of this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. Drying cylinder; 2. Bottom support; 3. Discharge end pipe; 4. Drive motor; 5. Lifting conveyor cylinder; 6. Screw conveyor rod; 7. Support end seat; 8. Open slot; 9. Air guide side seat; 10. Air guide connecting pipe; 11. Drying cylinder seat; 12. Hot air connecting pipe; 13. Drying ball cage; 14. Arc-shaped material guide seat. Detailed Implementation

[0018] 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.

[0019] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0020] Example

[0021] Please see Figures 1-5 This utility model provides a technical solution: a grain drying tower with uniform air distribution, comprising a drying cylinder 1, a bottom support 2, and a drying mechanism, as shown in the attached figure. Figure 1 As shown, the lower part of the drying cylinder 1 is set in an inverted cone shape. The drying cylinder 1 is supported and installed on the upper part of the bottom support 2. Specifically, in order to facilitate the support and installation of the drying cylinder 1, a support ring seat is fixed on the upper part of the bottom support 2. The support ring seat is fixedly installed on the lower part of the drying cylinder 1 by bolts. In order to facilitate the drying and storage of grain, a drying inner cavity is set in the middle of the drying cylinder 1. In order to facilitate the discharge of dried material, a discharge end pipe 3 is set on the lower side of the drying cylinder 1. The discharge end pipe 3 is fixedly installed on the lower side of the drying cylinder 1 in an inclined shape. The discharge end pipe 3 is connected to the drying inner cavity. In order to realize the on / off control of the discharge end pipe 3, a sealing end cap is set at the end of the discharge end pipe 3.

[0022] The drying mechanism includes an air guide assembly and a material conveying assembly. The material conveying assembly is used to lift and transport the grain inside the drying cylinder 1. The material conveying assembly includes a drive motor 4, a lifting conveying cylinder 5, and a screw conveyor 6. The lifting conveying cylinder 5 is installed in the middle of the inner cavity of the drying cylinder 1. Specifically, see attached... Figure 3 As shown, the lower part of the lifting conveyor cylinder 5 is fixedly installed to the mounting base set in the lower part of the drying inner cavity by bolts. In order to achieve the support limit of the upper part of the lifting conveyor cylinder 5, a support end seat 7 is fixedly installed on the upper part of the drying cylinder 1. The upper end of the lifting conveyor cylinder 5 is fixedly installed to the support part in the middle of the support end seat 7 by bolts. The spiral conveyor rod 6 is driven to rotate by the drive motor 4 and is installed inside the lifting conveyor cylinder 5. Specifically, see the attached figure. Figure 4As shown, the screw conveyor 6 is mounted inside the lifting conveyor cylinder 5 with a fixed axis supported by a shaft column. The support of the drive motor 4 is fixedly installed to the lower part of the drying cylinder 1 by bolts. The drive shaft end of the drive motor 4 is fixedly installed to the lower shaft end of the screw conveyor 6. The vertical lifting and conveying of grain materials can be realized by driving the screw conveyor 6 through the drive motor 4. In order to facilitate the conveying and connection of grain materials, open slots 8 are provided on the upper and lower sides of the lifting conveyor cylinder 5. The open slots 8 are distributed in a circumferential shape. The two sets of open slots 8 are respectively opened through the upper and lower sides of the lifting conveyor cylinder 5, which can facilitate the entry and exit of grain materials during conveying.

[0023] The air guide assembly is used to guide and convey hot air. The air guide assembly includes an air guide side seat 9, an air guide connecting pipe 10, and a drying cylinder seat 11, as shown in the attached diagram. Figure 1 As shown, the air guide seat 9 is fixedly installed on the outer side of the drying cylinder 1. To facilitate connection with external hot air supply equipment, a hot air connecting pipe 12 is fixedly installed at the lower part of the air guide seat 9. The air guide connecting pipe 12 is used for hot air diversion and delivery, as shown in the attached figure. Figure 3 As shown, three air guide pipes 10 are provided. The three air guide pipes 10 are evenly and uniformly fixed and connected to the inner side of the air guide seat 9. The drying working structure adopts a multi-point air supply. The hot air is guided by multiple sets of air guide pipes 10 set on the side of the air guide seat 9. The air guide pipes 10 are evenly distributed in the longitudinal direction to realize the segmented and uniform delivery of hot air in the drying cylinder seat 11. This ensures that the hot air flows evenly in the drying cylinder seat 11, avoids the problem of uneven grain drying caused by local heating, and is conducive to improving the uniformity and stability of grain drying.

[0024] The drying cylinder base 11 is installed on the outside of the lifting conveyor cylinder 5, as shown in the attached figure. Figure 4 As shown, the drying cylinder seat 11 is fitted onto the outside of the lifting conveyor cylinder 5. To support the installation of the drying cylinder seat 11, docking end seats are fixed at both the upper and lower ends of the drying cylinder seat 11. The docking end seats are fixedly supported and installed to the cylinder wall side of the lifting conveyor cylinder 5 by bolts. To improve the dispersion and smoothness of the falling grain material, an arc-shaped guide seat 14 is fixedly installed on the upper part of the drying cylinder seat 11, as shown in the attached figure. Figure 5As shown, drying ball cages 13 are installed at equal intervals on the upper part of the drying cylinder base 11. Both the drying cylinder base 11 and the drying ball cages 13 can be made of stainless steel. The drying ball cages 13 are spherical enclosures and are fixedly installed at equal intervals in the middle of the drying cylinder base 11. Multiple sets of drying ball cages 13 are arranged on the upper part of the drying cylinder base 11. The spherical enclosure design of the drying ball cages 13 can effectively increase the drying contact area with the grain material, which is beneficial to improving the grain drying efficiency. The air guide side seat 9 is connected to the drying ball cages 13 through the air guide connecting pipe 10. Specifically, the air guide connecting pipe 10... The end of 0 is fixedly connected to the side of the drying ball cage 13. To facilitate the flow of hot air, drying air holes are evenly opened through the periphery of the drying cylinder base 11 and the drying ball cage 13. The diffusion of hot air through the inner cavity of the drying ball cage 13 can facilitate the flow and diffusion of hot air, which can ensure the uniformity of drying of grain materials. The diameter of the drying ball cage 13 increases from top to bottom. In the initial stage of grain lifting and drying, it can support and guide the falling grain materials in sequence, prolong the residence time of grain in the drying zone, and achieve efficient drying of grain materials in the initial stage, which is conducive to improving the working efficiency of the device.

[0025] Working principle or structural principle: During operation, the grain material is fed into the drying cylinder 1 from above by a belt conveyor. Simultaneously, hot air enters the air guide seat 9 through the hot air connecting pipe 12. The air guide seat 9 then distributes the hot air to the inner sides of three sets of drying spherical cages 13 via three sets of connecting pipes 10. The connecting pipes 10 are evenly spaced longitudinally, ensuring segmented and uniform hot air delivery within the drying cylinder 11. This prevents uneven drying caused by localized heating. The hot air diffuses through the inner cavity of the drying spherical cages 13 and exits through the drying vents at the top, thus drying the grain material. During this process, the screw conveyor 6 is driven by the drive motor 4 to rotate at a constant speed. When the grain material enters the lower part of the drying cylinder 1, it enters through the open slot 8 at the bottom of the lifting conveyor cylinder 5 and is lifted and conveyed to the upper part of the lifting conveyor cylinder 5 by the screw conveyor 6. The lifted grain material is discharged from the open slot 8 at the top of the lifting conveyor cylinder 5 and is guided to fall naturally by the arc-shaped guide seat 14. The diameter of the drying ball cage 13 increases from top to bottom. In the initial stage of grain lifting and drying, the falling grain material can be supported and guided in sequence to prolong the residence time of the grain in the drying zone, which can achieve efficient drying of the grain material in the initial stage. This cycle is repeated to complete the drying work of the grain material. After drying is completed, the discharge end pipe 3 at the bottom of the drying cylinder 1 is opened to discharge the material in the drying cylinder 1, thus completing the grain drying process.

[0026] In summary, this grain drying tower adopts a multi-point air supply drying structure. Multiple sets of air guide pipes 10, located at the edge of the air guide seat 9, are used to guide hot air. The air guide pipes 10 are evenly distributed longitudinally, enabling segmented and uniform hot air delivery within the drying cylinder 11. This ensures uniform hot air circulation within the drying cylinder 11, avoiding uneven grain drying caused by localized heating, and improving the uniformity and stability of grain drying. Multiple sets of drying spherical cages 13 are installed at the upper part of the drying cylinder 11. Each drying spherical cage 13 is a spherical enclosure. It can effectively increase the drying contact area with grain materials, which is conducive to improving the grain drying efficiency. Furthermore, the drying ball cage 13 is connected to the air guide pipe 10. The diffusion of the inner cavity of the drying ball cage 13 can facilitate the circulation and diffusion of hot air, which can ensure the uniformity of grain drying. The diameter of the drying ball cage 13 increases from top to bottom. In the initial stage of grain lifting and drying, it can support and guide the falling grain materials in sequence, prolonging the residence time of the grain in the drying zone, which can achieve efficient drying of grain materials in the initial stage and improve the working efficiency of the device.

[0027] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A grain drying tower with uniform air distribution, comprising a drying cylinder (1), a bottom support (2) and a drying mechanism, characterized in that, The drying cylinder (1) is supported and installed on the upper part of the bottom bracket (2), and the lower side of the drying cylinder (1) is provided with a discharge end pipe (3). The drying mechanism includes an air guide assembly and a material conveying assembly. The material conveying assembly includes a drive motor (4), a lifting conveying cylinder (5), and a spiral conveying rod (6). The lifting conveying cylinder (5) is installed in the middle of the inner cavity of the drying cylinder (1). The spiral conveying rod (6) is driven to rotate inside the lifting conveying cylinder (5) by the drive motor (4). The upper and lower sides of the lifting conveying cylinder (5) are provided with open slots (8). The air guide assembly includes an air guide side seat (9), an air guide connecting pipe (10), and a drying cylinder seat (11). The drying cylinder seat (11) is installed outside the lifting conveying cylinder (5). A drying ball cage (13) is installed at equal intervals on the upper part of the drying cylinder seat (11). The air guide side seat (9) is connected to the drying ball cage (13) through the air guide connecting pipe (10).

2. The uniform air distribution grain drying column according to claim 1, wherein, The lower part of the drying cylinder (1) is set in an inverted cone shape, and the upper part of the bottom bracket (2) is fixed with a support ring seat. The support ring seat is fixedly installed to the lower part of the drying cylinder (1) by bolts.

3. A grain drying tower with uniform air distribution according to claim 2, characterized in that, The drying cylinder (1) has a drying inner cavity in the middle. The discharge end pipe (3) is fixedly installed at the lower side of the drying cylinder (1) in an inclined shape. The discharge end pipe (3) is connected to the drying inner cavity.

4. The uniform air distribution grain drying column of claim 3, wherein, The lower part of the lifting conveyor cylinder (5) is fixedly installed to the mounting base set in the lower part of the drying inner cavity by bolts. The upper part of the drying cylinder (1) is fixedly installed with a support end seat (7). The upper end of the lifting conveyor cylinder (5) is fixedly installed to the support part in the middle of the support end seat (7) by bolts.

5. The uniform air distribution grain drying column of claim 4, wherein, The spiral conveyor rod (6) is mounted inside the lifting conveyor cylinder (5) by means of a shaft column for fixed rotation. The support part of the drive motor (4) is fixedly installed to the lower part of the drying cylinder (1) by bolts. The drive shaft end of the drive motor (4) is fixedly installed to the lower shaft end of the spiral conveyor rod (6). The two sets of open slots (8) are respectively opened through the upper and lower sides of the lifting conveyor cylinder (5).

6. The uniform air distribution grain drying column of claim 1, wherein, The air guide side seat (9) is fixedly installed on the outer side of the drying cylinder (1). Multiple air guide pipes (10) are provided. Several air guide pipes (10) are evenly fixedly connected and installed on the inner side of the air guide side seat (9) at equal intervals. A hot air connecting pipe (12) is fixedly connected and installed on the lower part of the air guide side seat (9).

7. The uniform air distribution grain drying column of claim 6, wherein, The drying cylinder seat (11) is fitted onto the outside of the lifting conveyor cylinder (5). Both the upper and lower ends of the drying cylinder seat (11) are fixed with docking end seats. The docking end seats are fixedly supported and installed on the cylinder wall side of the lifting conveyor cylinder (5) by bolts. An arc-shaped guide seat (14) is fixedly installed on the upper part of the drying cylinder seat (11).

8. A grain drying tower with uniform air distribution according to claim 7, characterized in that, The drying ball cage (13) is a spherical enclosure. The drying ball cage (13) is fixedly installed in the middle of the drying cylinder seat (11) at equal intervals. The diameter of the drying ball cage (13) increases from top to bottom. The end of the air guide pipe (10) is fixedly connected to the side of the drying ball cage (13). Drying air holes are evenly opened through the periphery of the drying cylinder seat (11) and the drying ball cage (13).

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