Energy-saving hot air circulating device of grain dryer

Abstract

The utility model relates to the field of grain drying, and discloses an energy-saving hot air circulation device of a grain dryer, which comprises a supporting seat, a supporting shell and a heat preservation shell are arranged at the upper part of the supporting seat, the inner wall of the supporting shell is rotatably connected with a circulation assembly, and a driving assembly is arranged at the lower part of the supporting seat; the circulating assembly comprises two sets of heat preservation pipes arranged on the inner wall of the upper portion of the supporting base in a penetrating mode, a filter cylinder is arranged on the outer side of the heat preservation pipe on the right side, a heating device fixed to the upper portion of the supporting shell is connected to the outer sides of the heat preservation pipes, and an air blower is arranged on the left side of the heating device. According to the drying device, the driving motor and the circulating assembly are used in cooperation, the drying cylinder rotates to drive the stirring block to extrude the swing part, the swing part periodically collides with the filter cylinder under the action of the torsional spring, impurities on the surface of the filter cylinder can be shaken off, and therefore the filter cylinder can keep good filtering performance all the time, and the drying efficiency is maintained.

Description

Technical Field

[0001] This utility model relates to the field of grain drying, and in particular to an energy-saving hot air circulation device for a grain dryer. Background Technology

[0002] In modern agricultural production systems, grain drying is a crucial step in ensuring post-harvest quality and reducing storage losses. With the development of large-scale and modern agriculture, the demand for efficient and energy-saving grain drying equipment is becoming increasingly urgent.

[0003] While conventional hot air drying equipment can solve the drying efficiency problem to some extent, it generally suffers from high energy consumption and high operating costs, which does not conform to the current concept of green and sustainable agricultural development.

[0004] In existing hot air circulation devices, impurities in grains tend to accumulate on the surface of the filter components during the drying process, which not only reduces the filtration effect but also hinders the flow of hot air, thus affecting the drying efficiency. To address this issue, an energy-saving hot air circulation device for grain dryers is proposed. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an energy-saving hot air circulation device for a grain dryer, which aims to improve the problem in the prior art that "impurities easily accumulate on the surface of the filter components, affecting drying efficiency".

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an energy-saving hot air circulation device for a grain dryer, comprising a support base, a support shell and an insulation shell being provided on the upper part of the support base, a circulation component being rotatably connected to the inner wall of the support shell, and a drive component being provided on the lower part of the support base;

[0007] The circulation assembly includes two sets of heat-insulating pipes that penetrate the inner wall of the upper part of the support base. A filter cylinder is installed on the outer side of the right set of heat-insulating pipes. A heating device fixed to the upper part of the support shell is connected to the outer side of the heat-insulating pipe. A blower is installed on the left side of the heating device. The left set of heat-insulating pipes is fixedly connected to the blower. A drying cylinder is rotatably connected to the inner wall of the support shell. A toggle block is fixedly connected to the outer side of the drying cylinder. A fixing rod is fixedly connected to the inner wall of the support base. A swinging component is rotatably connected to the outer side of the fixing rod. The swinging component is elastically connected to the fixing rod through a torsion spring.

[0008] As a further description of the above technical solution:

[0009] The support shell is connected to the inner wall of the support base, and the front and rear sides of the drying cylinder are both fixed with closed covers by snap fasteners.

[0010] As a further description of the above technical solution:

[0011] The drive assembly includes a gear ring disposed on the outside of the drying cylinder, a drive motor is fixedly connected to the lower part of the support base, and a gear is fixedly connected to the front side of the output shaft of the drive motor, the gear meshing with the gear ring.

[0012] As a further description of the above technical solution:

[0013] A buffer pad is provided on the outside of the swinging component.

[0014] As a further description of the above technical solution:

[0015] The actuating blocks are provided in multiple sets, and the multiple sets of actuating blocks are arranged around the outside of the drying cylinder.

[0016] As a further description of the above technical solution:

[0017] The toggle block is set to be inclined in the clockwise direction.

[0018] As a further description of the above technical solution:

[0019] The filter cartridge has a smooth outer surface near the oscillating component.

[0020] As a further description of the above technical solution:

[0021] A cleaning assembly is provided near the lower side of the filter cartridge on the support base. The cleaning assembly includes a collection box that is slidably connected to the inner wall of the support base. The collection box and the support base are fixedly installed by a connector.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by using the drive motor and the circulation component together, the rotation of the drying cylinder drives the agitator to press the oscillating component. The oscillating component periodically impacts the filter cylinder under the action of the torsion spring, which can shake off the impurities on the surface of the filter cylinder, thereby ensuring that the filter cylinder always maintains good filtration performance and maintains drying efficiency.

[0024] 2. In this utility model, the cleaning component consists of a slidingly connected collection box and a connector, which facilitates the collection of shaken-off impurities. Users only need to periodically remove the collection box for cleaning, which reduces the workload and difficulty of equipment maintenance and improves the ease of use and operational stability of the equipment. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the overall device in this utility model;

[0026] Figure 2 This is a three-dimensional structural diagram of the disassembled integral device in this utility model;

[0027] Figure 3 This is a schematic cross-sectional view of the upper three-dimensional structure of the support base in this utility model;

[0028] Figure 4 This is a three-dimensional structural diagram of the drying cylinder and the actuating block in this utility model;

[0029] Figure 5 This is a three-dimensional structural diagram of the swing component and torsion spring in this utility model;

[0030] Figure 6 This is a three-dimensional structural diagram of the collection box and connector in this utility model.

[0031] Legend:

[0032] 1. Support base; 2. Support shell; 3. Insulation shell; 4. Circulation assembly; 41. Insulation pipe; 42. Heating device; 43. Blower; 44. Drying drum; 45. Actuating block; 46. Fixing rod; 47. Swinging component; 48. Filter cartridge; 49. Torsion spring; 5. Cleaning assembly; 51. Collection box; 52. Connector; 6. Drive assembly; 61. Gear ring; 62. Drive motor; 63. Gear; 7. Sealing cover. Detailed Implementation

[0033] 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.

[0034] Reference Figures 1-3 This utility model provides an embodiment of an energy-saving hot air circulation device for a grain dryer, including a support base 1, which serves as the basic support structure for the entire device. The upper part of the support base 1 is provided with a support shell 2 and a heat insulation shell 3. The support shell 2 is connected to the inner wall of the support base 1, providing installation space and protection for components such as the circulation component 4 and the drying cylinder 44, so that the hot air circulation and grain drying process can be carried out in a relatively closed environment, reducing heat loss and external interference. The heat insulation shell 3 mainly plays a heat preservation role, reducing the heat loss from the device to the external environment and improving energy utilization efficiency. The circulation component 4 is rotatably connected to the inner wall of the support shell 2, and a drive component 6 is provided at the lower part of the support base 1.

[0035] Reference Figures 1-3The circulation component 4 includes two sets of heat-insulating pipes 41 that penetrate the upper inner wall of the support base 1. The two sets of heat-insulating pipes 41 are used to connect the support base 1, the heating device 42, and the blower 43 to realize hot air circulation. A filter cylinder 48 is provided on the outer side of the right set of heat-insulating pipes 41 to filter the absorbed airflow and prevent impurities in the grain from entering. The outer side of the filter cylinder 48 near the swing member 47 is smooth to increase the stability when in contact with the swing member 47. The heating device 42, which is fixed to the upper part of the support shell 2, is connected to the outer side of the heat-insulating pipes 41 and is heated by infrared heating tubes, etc. The component heats the airflow, which is existing technology, so it will not be described in detail. A blower 43 is provided on the left side of the heating device 42 to realize the air flow in the device. A set of heat preservation pipes 41 on the left side is fixedly connected to the blower 43. A drying cylinder 44 is rotatably connected to the inner wall of the support shell 2 to place the grains to be dried. It can continuously turn the grains so that the grains are heated more evenly. The front and rear sides of the drying cylinder 44 are fixedly installed with sealing covers 7 by buckles to seal the sides of the drying cylinder 44. The inner wall of the drying cylinder 44 is spirally provided with conveying blades to realize the discharge of grains.

[0036] Reference Figures 3-5 A toggle block 45 is fixedly connected to the outside of the drying cylinder 44. The toggle block 45 is set with an inclined surface in the clockwise direction. Multiple sets of toggle blocks 45 are arranged around the outside of the drying cylinder 44. When the drying cylinder 44 rotates, the inclined surface of the toggle block 45 presses the left side of the swing member 47. A fixed rod 46 is fixedly connected to the inner wall of the support base 1 to support the swing member 47. The swing member 47 is rotatably connected to the outside of the fixed rod 46. A buffer pad is provided on the outside of the swing member 47. The swing member 47 is elastically connected to the fixed rod 46 through a torsion spring 49. The swing member 47 and the torsion spring 49 work together. After the swing member 47 is pressed, it can hit the filter cylinder 48 through the buffer pad on the swing member 47, causing impurities on the surface of the filter cylinder 48 to fall off, thus maintaining the drying efficiency.

[0037] Reference Figure 1 , Figure 3 and Figure 6 The drive assembly 6 includes a gear ring 61 disposed on the outside of the drying cylinder 44. A drive motor 62 is fixedly connected to the lower part of the support base 1 as a power source, which is existing technology and will not be described in detail. A gear 63 is fixedly connected to the front side of the output shaft of the drive motor 62. The gear 63 meshes with the gear ring 61 and can transmit the power of the drive motor 62 to the gear ring 61, thereby driving the drying cylinder 44 to rotate, realizing the tumbling and drying of grains in the drying cylinder 44, and improving the drying efficiency. A cleaning assembly 5 is disposed on the lower side of the support base 1 near the filter cylinder 48. The cleaning assembly 5 includes a collection box 51 slidably connected to the inner wall of the support base 1, which is used to collect impurities shaken off from the filter cylinder 48, making it convenient for users to regularly remove and clean it. The collection box 51 is fixedly installed to the support base 1 through a connector 52, which facilitates the disassembly and installation of the collection box 51.

[0038] Working principle: Before starting the energy-saving hot air circulation device of the grain dryer, put the grain to be dried into the drying cylinder 44 and close the sealing cover 7. After starting the device, the drive motor 62 starts to work. The gear 63 on the front side of the output shaft of the drive motor 62 meshes with the gear ring 61 on the outer side of the drying cylinder 44. The power generated by the drive motor 62 is transmitted to the gear ring 61 through the gear 63, thereby driving the drying cylinder 44 to rotate in the support shell 2.

[0039] At the same time, the heating device 42 and the blower 43 are started. The heating device 42 uses heating components such as infrared heating tubes to heat the air. The blower 43 blows the heated air into the drying cylinder 44 through a set of heat-insulating pipes 41 on the left side. The hot air comes into full contact with the grain in the drying cylinder 44 and removes the moisture from the grain.

[0040] Subsequently, air containing moisture and impurities exits from the drying cylinder 44, passes through a set of heat-insulating pipes 41 on the right side, and is filtered through the filter cylinder 48. The filtered air then returns to the heating device 42 to be heated. This cycle repeats continuously, forming a hot air circulation system that continuously provides heat for grain drying, achieving the goal of energy-saving drying.

[0041] During the rotation of the drying cylinder 44, multiple sets of clockwise inclined actuating blocks 45 on its outer side rotate accordingly. When the actuating blocks 45 rotate, the inclined surface periodically presses the left side of the swing member 47. The swing member 47 is mounted on the fixed rod 46 and is elastically connected to the fixed rod 46 through a torsion spring 49. When compressed, the swing member 47 rotates around the fixed rod 46 and compresses the torsion spring 49. When the actuating blocks 45 leave, the torsion spring 49 releases its elastic force, causing the swing member 47 to return to its original position. This causes the buffer pad on the outer side of the swing member 47 to periodically impact the filter cylinder 48, effectively shaking off the impurities adsorbed on the surface of the filter cylinder 48 during the filtration process.

[0042] The shaken-off impurities will fall into the collection box 51. The operator can rotate the connector 52 to release the lock on the collection box 51, thereby cleaning the impurities, keeping the inside of the device clean, and ensuring the normal operation of the device.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A grain dryer energy-saving hot air circulation device, comprising a support seat (1), characterized in that: The upper part of the support base (1) is provided with a support shell (2) and a heat preservation shell (3), the inner wall of the support shell (2) is rotatably connected with a circulating assembly (4), and the lower part of the support base (1) is provided with a driving assembly (6); The circulating assembly (4) comprises two groups of heat preservation pipes (41) penetratingly arranged in the inner wall of the upper part of the support base (1), the outer side of the right group of heat preservation pipes (41) is provided with a filter cartridge (48), the outer side of the heat preservation pipe (41) is connected with a heating device (42) fixed on the upper part of the support shell (2), the left side of the heating device (42) is provided with a blower (43), the left group of heat preservation pipes (41) is fixedly connected with the blower (43), the inner wall of the support shell (2) is rotatably connected with a drying cartridge (44), the outer side of the drying cartridge (44) is fixedly connected with a poking block (45), the inner wall of the support base (1) is fixedly connected with a fixed rod (46), the outer side of the fixed rod (46) is rotatably connected with an oscillating piece (47), and the oscillating piece (47) is elastically connected with the fixed rod (46) through a torsional spring (49).

2. The energy saving type hot air circulating device for a grain dryer according to claim 1, characterized by: The support shell (2) is in communication with the inner wall of the support base (1), and the drying cartridge (44) is fixedly installed with a closure cover (7) through buckles on the front and rear sides.

3. The energy efficient hot air circulating device for grain dryer as claimed in claim 1 wherein: The driving assembly (6) comprises a gear ring (61) arranged on the outer side of the drying cartridge (44), the lower part of the support base (1) is fixedly connected with a driving motor (62), the output shaft of the driving motor (62) is fixedly connected with a gear (63), and the gear (63) and the gear ring (61) are in meshing engagement.

4. The grain dryer energy efficient air circulation device of claim 1, wherein: The outer side of the oscillating piece (47) is provided with a buffer pad.

5. The grain dryer energy efficient hot air circulation device of claim 1, wherein: The poking block (45) is provided with a plurality of groups, and the plurality of groups of poking blocks (45) are circumferentially arranged on the outer side of the drying cartridge (44).

6. The grain dryer energy efficient air circulation device of claim 1, wherein: The poking block (45) is arranged as an inclined surface in the clockwise direction.

7. The energy efficient hot air circulating device for grain dryer as claimed in claim 1 wherein: The outer side of the filter cartridge (48) close to the oscillating piece (47) is smooth.

8. The energy efficient hot air circulating device for grain dryer as claimed in claim 1 wherein: The support base (1) is provided with a cleaning assembly (5) close to the lower side of the filter cartridge (48), the cleaning assembly (5) comprises a collection box (51) slidably connected to the inner wall of the support base (1), and the collection box (51) and the support base (1) are fixedly installed through a connecting piece (52).

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