A hot air type segmented drying tower for chickpeas

Abstract

The utility model relates to the technical field of dry bean drying tower, concretely relates to a dry bean hot -blast type subsection drying tower, including drying tower body, the inside of drying tower body is provided with inner drying chamber, and the top and bottom of inner drying chamber all are linked with outside, and the bottom of drying tower body is detachably installed with bottom plugging cover, and the cavity wall of inner drying chamber is fixedly installed with a plurality of mesh hole hoppers from top to bottom, the bottom of mesh hole hopper is fixedly installed with unloading pipe, and unloading valve is fixedly installed on unloading pipe, and the bottom cylinder of drying tower body is provided with the air outlet ring for drying operation of air inlet, and the air outlet ring is covered on the mesh hole hopper located the lowermost, and a plurality of air outlet holes are arranged on the bottom surface and the inner annular side surface of air outlet ring, and the air inlet end of air outlet ring passes through the fan air inlet, and the air inlet end of air outlet ring passes through temperature control electric heater heating. The utility model is convenient for subsection drying operation, has good drying and unloading effect, and is convenient to use.

Description

Technical Field

[0001] This utility model relates to the field of broad bean drying tower technology, specifically to a hot air segmented drying tower for broad beans. Background Technology

[0002] Broad beans, as an important economic crop, are rich in protein, dietary fiber and other nutrients, and are widely used in food processing, feed production and other fields. Drying is an essential and crucial step in the processing of broad beans, and the drying effect directly affects the quality, shelf life and subsequent processing performance of broad beans.

[0003] Currently, broad bean drying mainly employs traditional methods such as natural sun-drying and ordinary hot air drying. Natural sun-drying relies on favorable weather conditions, is greatly limited by season and region, has a long drying cycle, low production efficiency, and is susceptible to contamination from dust and insects during the drying process, making it difficult to guarantee the hygienic quality of the broad beans. While ordinary hot air drying equipment improves drying efficiency to some extent, it typically uses hot air at a single temperature and wind speed, making it impossible to precisely control the drying process based on the moisture changes of the broad beans at different stages. In the initial stage of drying, if the hot air temperature and wind speed are too high, the surface of the broad beans can easily lose water and form a crust, hindering the migration of internal moisture and creating a "false dryness" phenomenon. In the later stages of drying, if high-temperature drying is continued, the broad beans will suffer severe loss of nutrients, darken in color, and may even become scorched, reducing product quality.

[0004] Patent CN103211278A discloses a segmented peanut drying tower, relating to the field of peanut drying technology. The tower includes a feeding device, a drying tower, and a discharging device. The device comprises a funnel and a hoist. The drying tower includes a funnel, a motor, a fan, a filter, and an insulation wall. The discharging device includes a conveyor belt and a V-belt. The feeding device is connected to the upper funnel of the drying tower, and the drying tower outlet is connected to the discharging device. The filter includes a conical body, a perforated mesh, and eight supporting triangular tubes. The conical body of the separating device has several mesh holes of a specific size. The perforated mesh is fixed to the insulation wall, and its lower end is connected to the outlet. With this structure, the drying tower allows hot air to pass evenly through the peanut layer, solving the problem of uneven roasting in traditional drying towers. This tower structure ensures that peanuts are heated evenly from the bottom layer, eliminating the need for bottom material in traditional drying towers, simplifying the process, and saving energy.

[0005] Although this technical solution has advantages such as simplified process and energy saving, most current hot air segmented drying towers still have some drawbacks. For example, the use of flat perforated plates to hold materials and perform drying operations makes it difficult to unload directly from the bottom. Furthermore, while some hot air segmented drying towers do introduce air from the bottom, the airflow is not uniform, affecting the hot air drying effect on multiple layers of broad beans from bottom to top. Therefore, we propose a hot air segmented drying tower for broad beans. Utility Model Content

[0006] The purpose of this invention is to provide a hot air segmented drying tower for broad beans to solve the defects mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A segmented hot air drying tower for broad beans includes a drying tower body with an inner drying chamber inside. The top and bottom of the inner drying chamber are connected to the outside. A bottom sealing cover is detachably installed on the bottom of the drying tower body. Multiple mesh hoppers are fixedly installed from top to bottom on the wall of the inner drying chamber. A discharge pipe is fixedly installed at the bottom of each mesh hopper, and a discharge valve is fixedly installed on the discharge pipe. An air outlet ring for air intake and drying operation is provided in the bottom cylinder of the drying tower body. The air outlet ring is fitted onto the bottom mesh hopper. Multiple air outlet holes are provided on the bottom surface and inner annular side surface of the air outlet ring. Air is introduced into the air outlet ring by a fan, and the air inlet of the air outlet ring is heated by a temperature-controlled electric heater.

[0009] Preferably, the bottom sealing cover is detachably connected to the drying tower body by multiple fastening bolts, and the number of mesh hoppers is between 3 and 6.

[0010] Preferably, the mesh hopper has a mesh funnel-shaped structure, and the plane containing the inner wall of the mesh hopper is inclined downward at 45°~60°.

[0011] Preferably, a plurality of support legs are fixedly installed on the bottom cylinder of the drying tower, and a fixed base is fixedly installed at the bottom end of the support legs.

[0012] Preferably, a conveying pipe that extends out of the drying tower body is fixedly installed on the annular side of the air outlet ring, and an air inlet hood is fixedly installed at the air inlet end of the conveying pipe.

[0013] Preferably, both the fan and the temperature-controlled electric heater are fixedly installed inside the air inlet shroud, and a filter screen is detachably installed at the air inlet end of the air inlet shroud;

[0014] Preferably, a fixing ring is fixedly installed on the annular side of the filter screen, and the fixing ring is detachably connected to the air inlet shroud by a plurality of fastening bolts;

[0015] The above two settings facilitate filtration using a filter screen, and also facilitate the removal and replacement of the filter screen.

[0016] Preferably, the drying tower body has multiple inspection holes on its cylinder, the inspection holes being located on one side of the corresponding unloading valve, and a sealing cover plate being detachably installed on the outer side of the drying tower body by multiple fastening screws, the sealing cover plate sealing the corresponding inspection hole, and a rubber sealing gasket being provided on the inner side of the sealing cover plate, the rubber sealing gasket being pressed against the outer surface of the drying tower body;

[0017] This feature facilitates opening the sealing cover for corresponding maintenance operations, making it convenient to use.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This utility model enables the broad beans to be discharged directly from the bottom after drying by setting a mesh funnel-shaped hopper, a bottom discharge pipe, and a discharge valve, without the need for additional material transfer, thus simplifying the discharge process. At the same time, the inclined inner wall of the mesh hopper makes it easier for the material to concentrate in the discharge pipe, achieving the effect of efficient discharge and improved production efficiency.

[0020] 2. This utility model achieves uniform upward delivery of hot air from the bottom to cover all layers of broad beans by setting an air outlet ring with air outlet holes on the bottom surface and inner annular side surface at the bottom of the drying tower, and the air inlet is controlled by a fan and a temperature-controlled electric heater. This avoids the problem of uneven drying in some areas and effectively ensures that all layers of broad beans from bottom to top receive good hot air drying, thereby improving the drying quality of broad beans and ensuring the consistency of drying effect.

[0021] 3. This utility model achieves the filtration of impurities in the hot air entering the drying tower by installing a detachable filter screen at the air inlet end of the air inlet hood, ensuring the cleanliness of the hot air and preventing foreign objects from affecting the quality of broad beans; the inspection holes and sealing covers with rubber gaskets on the drying tower body facilitate the maintenance of components such as the unloading valve by the staff. The combination of these two features ensures stable operation of the equipment and extends its service life. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the air outlet ring of this utility model;

[0024] Figure 3This is a schematic diagram of the structure of the mesh hopper of this utility model;

[0025] Figure 4 This is one of the partial structural schematic diagrams of this utility model;

[0026] Figure 5 This is the second partial structural schematic diagram of the present utility model;

[0027] The meanings of the labels in the diagram are as follows:

[0028] 1. Drying tower body; 10. Inner drying chamber; 11. Mesh hopper; 12. Discharge pipe; 121. Discharge valve; 13. Bottom sealing cover; 14. Support leg; 141. Fixed base;

[0029] 2. Air inlet hood; 20. Temperature-controlled electric heater; 21. Fan; 22. Filter screen; 221. Fixing ring; 23. Conveying pipe; 24. Air outlet ring; 241. Air outlet hole;

[0030] 3. Inspection hole; 30. Sealing cover; 31. Rubber sealing gasket. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0032] Please see Figures 1-5 This utility model provides a technical solution: a hot air segmented drying tower for broad beans, including a drying tower body 1, an inner drying chamber 10 is provided inside the drying tower body 1, the top and bottom of the inner drying chamber 10 are connected to the outside, the top is used for moisture discharge, and a bottom sealing cover 13 is detachably installed at the bottom of the drying tower body 1. The bottom sealing cover 13 is detachably connected to the drying tower body 1 by multiple fastening bolts, which is convenient for installation and removal, and after removal, it is convenient to perform corresponding cleaning operations from the bottom of the drying tower body 1.

[0033] like Figure 1 and Figure 3 As shown, multiple mesh hoppers 11 are fixedly installed on the wall of the inner drying chamber 10 from top to bottom. Broad beans are blocked above the mesh hoppers 11. A discharge pipe 12 is fixedly installed at the bottom of the mesh hopper 11, and a discharge valve 121 is fixedly installed on the discharge pipe 12. The number of mesh hoppers 11 is between 3 and 6, so that the dried broad beans can be directly discharged from the bottom through the discharge pipe 12 and the discharge valve 121 is opened, without the need for complicated pouring operations, thus simplifying the unloading process.

[0034] like Figure 1 and Figure 2 As shown, the bottom cylinder of the drying tower 1 is equipped with an air outlet ring 24 for air intake and drying operation. The air outlet ring 24 is fitted onto the bottom mesh hopper 11. Multiple air outlet holes 241 are provided on the bottom surface and inner annular side surface of the air outlet ring 24. Air is discharged from the air outlet holes 241 and blown towards the bottom sealing cover 13. Under the obstruction of the bottom sealing cover 13, the air is blown upward and the broad beans are dried more thoroughly. The air inlet end of the air outlet ring 24 is fed by a fan 21 and heated by a temperature-controlled electric heater 20, so that the hot air can be delivered from the bottom in an all-round and uniform manner to each layer of mesh hopper 11, avoiding uneven local temperature. The temperature-controlled electric heater 20 can adjust the temperature according to the drying requirements to ensure precise temperature control during the broad bean drying process and improve the drying quality.

[0035] like Figure 3 As shown, the mesh hopper 11 has a mesh funnel-shaped structure. The inner wall of the mesh hopper 11 is inclined downward at 45°~60°, which allows the broad beans to concentrate towards the discharge pipe 12 due to their own gravity during the drying process, avoiding material residue. At the same time, the mesh structure ensures that the hot air can fully penetrate and make uniform contact with the broad beans, achieving efficient drying and improving drying efficiency and smooth discharge.

[0036] like Figure 1 As shown, multiple support legs 14 are fixedly installed on the bottom cylinder of the drying tower 1. A fixed base 141 is fixedly installed at the bottom end of the support legs 14, so that the drying tower 1 can be placed stably on the ground, which enhances the overall stability of the equipment and avoids the drying process and the drying effect of broad beans due to equipment shaking.

[0037] like Figure 1 As shown, a conveying pipe 23 that passes through the drying tower body 1 is fixedly installed on the annular side of the air outlet ring 24. An air inlet hood 2 is fixedly installed at the air inlet end of the conveying pipe 23. The fan 21 and the temperature-controlled electric heater 20 are both fixedly installed inside the air inlet hood 2, providing installation space for the fan 21 and the temperature-controlled electric heater 20, making the hot air conveying path more regular and facilitating the installation and maintenance of the equipment; at the same time, the air inlet structure is reasonably arranged to ensure a stable input of hot air.

[0038] like Figure 1 and Figure 4 As shown, a filter screen 22 is detachably installed at the air inlet end of the air inlet hood 2. A fixing ring 221 is fixedly installed on the annular side of the filter screen 22. The fixing ring 221 is detachably connected to the air inlet hood 2 by multiple fastening bolts, so that the hot air entering the drying tower can be filtered to block dust, impurities and other foreign objects from entering the inner drying chamber 10 and prevent foreign objects from contaminating the broad beans. The detachable design makes it easy to clean or replace the filter screen 22 regularly, ensuring the filtration effect and smooth ventilation of the equipment.

[0039] like Figure 5 As shown, the drying tower body 1 has multiple inspection holes 3 on its cylinder. The inspection holes 3 are located on one side of the corresponding unloading valve 121. A sealing cover plate 30 is detachably installed on the outer side of the drying tower body 1 by multiple fastening screws. The sealing cover plate 30 seals the corresponding inspection hole 3. A rubber sealing gasket 31 is provided on the inner side of the sealing cover plate 30. The rubber sealing gasket 31 is pressed against the outer surface of the drying tower body 1, so that the sealing cover plate 30 can be opened for quick maintenance when needed. The rubber sealing gasket 31 ensures the sealing of the drying tower when not under maintenance, which facilitates equipment maintenance and does not affect the normal operation of the drying tower.

[0040] It is worth noting that the bottom discharge pipe 12 extends out from the bottom of the installed bottom sealing cover 13. The bottom sealing cover 13 has a through hole at its center for the discharge pipe 12 to pass through. During normal installation, the bottom sealing cover 13 is fitted onto the bottom discharge pipe 12, and the size of the bottom discharge pipe 12 matches the through hole at the center of the bottom sealing cover 13. The through hole at the center of the bottom sealing cover 13 can also be sealed with a sealing ring to ensure a normal sealing effect and prevent leakage.

[0041] Finally, it should be noted that the discharge valve 121 can be an electric valve, allowing the opening and closing of the discharge valve 121 to be controlled by a switch outside the drying tower body 1. Furthermore, the temperature-controlled electric heater 20, fan 21, discharge valve 121, corresponding control system, and external power supply components involved in this utility model are all general standard parts or components known to those skilled in the art. Their structures and principles are known to those skilled in the art through technical manuals or conventional experimental methods. In the idle spaces of this device, all the aforementioned electrical components (referring to power elements, electrical components, and compatible controllers and power supplies) are connected by wires. Specific connection methods should refer to the working principle of this utility model. The electrical connections between the various electrical components are completed according to their sequential operation. The detailed connection methods are all technologies known in the art.

[0042] When using the hot air segmented drying tower for broad beans of this utility model, firstly, the bottom sealing cover 13 is installed by fastening the bolts between the bottom sealing cover 13 and the drying tower body 1 to ensure that the bottom of the drying tower body 1 is sealed. Then, the broad beans to be dried are placed in the multiple mesh hoppers 11 in the inner drying chamber 10. The funnel-shaped structure and inclined inner wall of the mesh hopper 11 make the broad beans automatically concentrate towards the discharge pipe 12.

[0043] Next, the blower 21 and the temperature-controlled electric heater 20 are started. After the air is filtered by the filter screen 22 at the air inlet hood 2, it is sent by the blower 21 into the temperature-controlled electric heater 20 for heating. The hot air enters the air outlet ring 24 through the conveying pipe 23 and is blown out from the air outlet holes 241 on the bottom surface and inner ring side of the air outlet ring 24. Under the obstruction of the bottom sealing cover 13, the hot air passes evenly upward through each layer of mesh hopper 11 to dry the broad beans. The moisture is discharged from the top of the inner drying chamber 10.

[0044] After drying, due to the uneven drying degree of each layer, the bottom discharge valve 121 is opened, and the dried broad beans at the bottom are discharged from the bottom through the discharge pipe 12. At this time, the upper discharge valves 121 are opened in sequence, so that the upper broad beans fall into the lower mesh hopper 11 in sequence to continue the drying operation, ensuring that they are fully dried. If the equipment needs to be cleaned or repaired, the fastening bolts of the bottom sealing cover 13 can be unscrewed for cleaning; the sealing cover plate 30 at the inspection hole 3 can also be opened to inspect the discharge valve 121 and other components. After the inspection is completed, the sealing cover plate 30 is reinstalled, and the rubber sealing gasket 31 is used to ensure the sealing of the drying tower.

[0045] 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 preferred examples and are not intended to limit the 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hot air segmented drying tower for broad beans, comprising a drying tower body (1), characterized in that: The drying tower body (1) is provided with an inner drying chamber (10). The top and bottom of the inner drying chamber (10) are connected to the outside. The bottom of the drying tower body (1) is detachably fitted with a bottom sealing cover (13). Multiple mesh hoppers (11) are fixedly installed on the cavity wall of the inner drying chamber (10) from top to bottom. A discharge pipe (12) is fixedly installed at the bottom end of the mesh hopper (11). A discharge valve is fixedly installed on the discharge pipe (12). (121) The bottom cylinder of the drying tower (1) is provided with an air outlet ring (24) for air intake and drying operation. The air outlet ring (24) is sleeved on the mesh hopper (11) located at the bottom. Multiple air outlet holes (241) are provided on the bottom surface and the inner annular side surface of the air outlet ring (24). The air inlet end of the air outlet ring (24) is supplied with air by a fan (21), and the air inlet end of the air outlet ring (24) is heated by a temperature-controlled electric heater (20).

2. The broad bean hot air segmented drying tower according to claim 1, characterized in that: The bottom sealing cap (13) is detachably connected to the drying tower body (1) by multiple fastening bolts, and the number of mesh hoppers (11) is between 3 and 6.

3. The broad bean hot air segmented drying tower according to claim 1, characterized in that: The mesh hopper (11) has a mesh funnel-shaped structure, and the plane of the inner wall of the mesh hopper (11) is inclined downward at 45°~60°.

4. The broad bean hot air segmented drying tower according to claim 1, characterized in that: Multiple support legs (14) are fixedly installed on the bottom cylinder of the drying tower (1), and a fixed base (141) is fixedly installed at the bottom end of the support legs (14).

5. The broad bean hot air segmented drying tower according to claim 1, characterized in that: A conveying pipe (23) that passes through the drying tower body (1) is fixedly installed on the annular side of the air outlet ring (24), and an air inlet cover (2) is fixedly installed at the air inlet end of the conveying pipe (23).

6. The broad bean hot air segmented drying tower according to claim 5, characterized in that: The fan (21) and the temperature-controlled electric heater (20) are both fixedly installed inside the air inlet hood (2), and the air inlet end of the air inlet hood (2) is detachably equipped with a filter screen (22).

7. The broad bean hot air segmented drying tower according to claim 6, characterized in that: A fixing ring (221) is fixedly installed on the annular side of the filter screen (22), and the fixing ring (221) is detachably connected to the air inlet cover (2) by a plurality of fastening bolts.

8. The broad bean hot air segmented drying tower according to claim 1, characterized in that: The drying tower body (1) has multiple inspection holes (3) on its cylinder. The inspection holes (3) are located on one side of the corresponding unloading valve (121). A sealing cover plate (30) is detachably installed on the outer side of the drying tower body (1) by multiple fastening screws. The sealing cover plate (30) seals the corresponding inspection hole (3). A rubber sealing gasket (31) is provided on the inner side of the sealing cover plate (30). The rubber sealing gasket (31) is pressed against the outer surface of the drying tower body (1).

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