A seed drying apparatus

Abstract

The utility model relates to agricultural machinery technical field, concretely discloses a kind of for seed drying equipment, including box, the first conveying unit and the second conveying unit of opposite conveying direction are arranged longitudinally staggered in the box, the first conveying unit and the second conveying unit number are at least two;The feed inlet of the first conveying unit is close to the left side wall of box, and the first blanking gap is formed between discharge end and right side wall;The feed inlet of the second conveying unit is close to the right side wall of box, and the second blanking gap is formed between discharge end and left side wall;The deflector is inclinedly arranged below the first blanking gap and the second blanking gap, and the high end portion of the deflector is fixedly connected to the inner wall of box;The seed drying equipment is matched by reasonable structure design and component, can improve drying efficiency, guarantee seed quality, realize energy saving and environmental protection, reduce equipment vibration and noise, and compact and reasonable structure is suitable for different scale agricultural production.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and specifically discloses a seed drying device. Background Technology

[0002] In agricultural production, seed drying is a crucial step in ensuring seed storage quality and improving germination rates. However, some traditional drying equipment suffers from flawed airflow design. For example, hot air in the drying chamber blows from only one direction, causing uneven heating of different parts of the seed. Seeds near the air vent tend to over-dry, while those further away are under-dried. Furthermore, a single airflow direction cannot effectively remove moisture from the seeds, resulting in uneven humidity distribution within the drying chamber. This further hinders the drying process, increases drying time and energy consumption, and fails to guarantee uniform drying. In addition, existing drying equipment has deficiencies in seed turning and conveying. Some equipment lacks an effective seed turning mechanism, failing to promote relative movement of seeds during the drying process and hindering the resolution of uneven seed heating.

[0003] Therefore, there is an urgent need for a high-efficiency, low-damage, energy-saving and environmentally friendly seed drying equipment. Utility Model Content

[0004] This invention proposes a seed drying equipment that, through the coordinated operation of an alternating reverse conveying unit and a oscillating cloth-spreading mechanism, combined with a flexible protective spiral conveyor, achieves uniform seed spreading, efficient turning, controllable drying, and low-damage collection, significantly improving drying uniformity and seed quality.

[0005] This invention is implemented as follows: a seed drying device includes a housing. Inside the housing, first and second conveying units with opposite conveying directions are arranged longitudinally and alternately, with at least two of each. The inlet of the first conveying unit is near the left side wall of the housing, and a first discharge gap is formed between its outlet and the right side wall. The inlet of the second conveying unit is near the right side wall of the housing, and a second discharge gap is formed between its outlet and the left side wall. Guide plates are inclinedly arranged below both the first and second discharge gaps, with their high ends fixed to the inner wall of the housing. A swinging feeding mechanism is provided on the top left side of the housing for uniformly conveying seeds into the housing.

[0006] Above the first conveying unit and the second conveying unit, air distribution plates are arranged in parallel. The air distribution plates have air distribution chambers inside and air distribution holes at the bottom. A heating device and a fan are installed outside the box. The heating device includes a shell and multiple sets of electric heating tubes. The air outlet of the fan is connected to the bottom of the shell. The top of the shell is connected to each air distribution chamber through a diversion pipe, and a control valve is installed on the diversion pipe. A V-shaped material collection trough is provided at the bottom of the box. A screw conveyor is installed in the material collection trough. The lower left side of the box is connected to the discharge pipe.

[0007] As a preferred embodiment of this utility model for seed drying equipment, the oscillating feeding mechanism includes a connecting cavity communicating with the housing, a conveyor horizontally arranged in the connecting cavity, a rotating seat fixed to the bottom of the conveyor, a bearing seat, and a drive motor. The top of the connecting cavity is provided with a feeding port, the feeding end of the conveyor is located below the feeding port, and the discharging end extends to above the feeding end of the uppermost first conveying unit. The bearing seat is fixed to the bottom of the connecting cavity and is rotatably connected to the rotating seat through a bearing. The drive motor is located at the bottom of the connecting cavity, and the output shaft of the drive motor is coaxially and fixedly connected to the rotating seat.

[0008] As a preferred embodiment of the present invention for seed drying equipment, the spiral blades of the spiral conveyor are covered with a flexible protective layer, and the outer surface of the flexible protective layer is a smooth arc-shaped surface.

[0009] As a preferred embodiment of the seed drying equipment of this utility model, both the first conveying unit and the second conveying unit include a driving wheel, a driven wheel, and a conveyor belt that are rotatably connected to the housing; the surface of the conveyor belt is uniformly provided with air vents, the diameter of which is smaller than the minimum particle size of the seeds to be dried; the surface of the conveyor belt is provided with hemispherical protrusions.

[0010] As a preferred embodiment of the present invention for seed drying equipment, a spring vibration damper is fixedly connected to the bottom of the box body. The spring vibration damper includes a base, a guide column vertically fixed to the base, a spring element sleeved on the outer periphery of the guide column, and a guide seat slidably connected to the outer wall of the guide column. The guide seat is fixedly connected to the box body. A vibration motor is installed at the bottom of the box body.

[0011] As a preferred embodiment of the present invention for seed drying equipment, a temperature sensor is provided inside the chamber, and a controller is provided outside the chamber. The temperature sensor is electrically connected to the controller, and the output terminal of the controller is connected to an electric heating tube and a fan.

[0012] As a preferred embodiment of this invention for seed drying equipment, the width of the connecting cavity is equal to the width of the box body, and the width of the conveyor is 1 / 3 of the width of the connecting cavity.

[0013] As a preferred embodiment of the seed drying equipment of this utility model, the air inlet of the fan is equipped with a filter cover.

[0014] The beneficial effects of this utility model are:

[0015] 1. Multi-layer staggered conveying extends the contact time between seeds and hot air, while oscillating fabric and breathable conveyor belts ensure even heating of seeds and reduce drying dead zones.

[0016] 2. The spiral blades of the flexible protective layer, the raised point design of the conveyor belt, and the vibration assistance reduce mechanical damage to the seeds during transportation and mixing.

[0017] 3. The temperature control system automatically adjusts the drying parameters, and the oscillating fabric and spiral conveyor reduce manual intervention and labor intensity.

[0018] 4. The air volume of each layer can be adjusted by the control valve, which can be adapted to different types and humidity of seeds, making it widely applicable; the spring vibration damper reduces the impact of vibration on the equipment, and the filter cover ensures a clean drying environment and extends the service life of the equipment. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a cross-sectional structural diagram of the box body of this utility model.

[0022] Figure 3 This is a cross-sectional view of the swing fabric mechanism of this utility model.

[0023] Figure 4 This is a schematic diagram of the structure of the first conveying unit of this utility model.

[0024] Figure 5 This is a cross-sectional view of the air distribution cavity of this utility model.

[0025] The markings in the diagram are as follows: 1. Box body; 2. First conveying unit; 3. Second conveying unit; 4. Guide plate; 5. Swinging fabric distribution mechanism; 6. Air distribution plate; 7. Air distribution chamber; 8. Air distribution hole; 9. Heating device; 10. Fan; 11. Shell; 12. Electric heating tube; 13. Diverter pipe; 14. Control valve; 15. Collection trough; 16. Screw conveyor; 17. Discharge pipe; 18. Connecting cavity; 19. Conveyor; 20. Rotary seat; 21. Bearing seat; 22. Drive motor; 23. Feed port; 24. Conveyor belt; 25. Vent hole; 26. Protrusion; 27. Spring vibration damper; 28. Base; 29. ​​Guide column; 30. Spring component; 31. Guide seat; 32. Vibration motor; 33. Temperature sensor; 34. Controller; 35. Filter cover. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0027] Please see Figure 1-5 A seed drying device includes a housing 1. Inside the housing 1, first conveying units 2 and second conveying units 3 are arranged longitudinally in opposite directions, with at least two of each. The inlet end of the first conveying unit 2 is close to the left side wall of the housing 1, and a first discharge gap is formed between its outlet end and the right side wall. The inlet end of the second conveying unit 3 is close to the right side wall of the housing 1, and a second discharge gap is formed between its outlet end and the left side wall. Guide plates 4 are inclinedly arranged below both the first and second discharge gaps, with their high ends fixed to the inner wall of the housing 1. A swinging feeding mechanism 5 is provided on the top left side of the housing 1, used to evenly feed seeds into the housing 1.

[0028] Above the first conveying unit 2 and the second conveying unit 3, air distribution plates 6 are arranged in parallel. The air distribution plates 6 have air distribution chambers 7 inside and air distribution holes 8 at the bottom. The outer side of the box body 1 is equipped with a heating device 9 and a fan 10. The heating device 9 includes a housing 11 and multiple sets of electric heating tubes 12. The air outlet of the fan 10 is connected to the bottom of the housing 11. The top of the housing 11 is connected to each air distribution chamber 7 through a diversion pipe 13, and a control valve 14 is provided on the diversion pipe 13. The bottom of the box body 1 is equipped with a V-shaped material collection trough 15. A screw conveyor 16 is installed in the material collection trough 15. The lower left side of the box body 1 is connected to the discharge pipe 17.

[0029] In this embodiment: the seeds enter through the feeding port 23 of the oscillating fabric distribution mechanism 5. Under the conveyor 19, the drive motor 22 drives the rotating seat 20 to rotate, causing the conveyor 19 to oscillate, thus evenly distributing the seeds to the feeding end of the uppermost first conveying unit 2. The first conveying unit 2 and the second conveying unit 3 are longitudinally intersecting and in opposite directions. The seeds move forward under the drive of the conveyor belt 24. During this process, the fan 10 sends outside air into the heating device 9. The hot air, heated by the electric heating tube 12, enters the air distribution chamber 7 of the air distribution plate 6 through the diverter pipe 13, and is then evenly blown out from the air distribution holes 8 to dry the seeds on the lower conveyor belt 24. When the seeds reach the discharge end of the first conveying unit 2, they fall through the first drop gap and are guided by the guide plate 4 to the next layer of the second conveying unit 3. The seeds continue to be conveyed and dried on the second conveying unit 3, then fall through the second dropping gap and are guided by the guide plate 4 to the next layer of the first conveying unit 2, and so on. The dried seeds finally fall into the collection trough 15 at the bottom of the box 1, and are discharged from the equipment through the discharge pipe 17 under the action of the screw conveyor 16. Throughout the process, the temperature sensor 33 monitors the temperature inside the box 1 in real time and transmits the signal to the controller 34. The controller 34 controls the heating power of the electric heating tube 12 and the speed of the fan 10 according to the preset temperature value to maintain a stable and suitable drying temperature inside the box 1. At the same time, the vibration generated by the vibrating motor 32 assists the movement of the seeds on the conveyor belt 24, prevents the seeds from accumulating, and improves the uniformity of heating. The spring vibration damper 27 reduces the impact of the equipment's operating vibration on the surrounding environment.

[0030] The swinging fabric mechanism 5 has a swing angle of 30°-60°.

[0031] As a technical optimization of this utility model, the swing fabric feeding mechanism 5 includes a connecting cavity 18 communicating with the housing 1, a conveyor 19 horizontally arranged in the connecting cavity 18, a rotating seat 20 fixed to the bottom of the conveyor 19, a bearing seat 21, and a drive motor 22. The top of the connecting cavity 18 is provided with a feeding port 23, the feeding end of the conveyor 19 is located below the feeding port 23, and the discharging end extends to the top of the feeding end of the first conveying unit 2. The bearing seat 21 is fixed to the bottom of the connecting cavity 18, and the bearing seat 21 is rotatably connected to the rotating seat 20 through a bearing. The drive motor 22 is located at the bottom of the connecting cavity 18, and the output shaft of the drive motor 22 is coaxially fixedly connected to the rotating seat 20.

[0032] In this embodiment: the drive motor 22 drives the rotating seat 20 to rotate through the output shaft, which in turn drives the conveyor 19 to swing around the rotating seat 20 as the center, so as to realize the function of uniformly conveying seeds into the box 1, avoiding local accumulation of seeds in the box 1, and ensuring the uniformity of drying.

[0033] As a technical optimization of this utility model, the outer edge of the spiral blades of the spiral conveyor 16 is covered with a flexible protective layer, and the outer surface of the flexible protective layer is an arc-shaped smooth curved surface.

[0034] In this embodiment: the flexible protective layer reduces mechanical damage to the seeds during spiral conveying, and the curved surface prevents seeds from getting stuck, thus protecting the integrity of the seeds.

[0035] As a technical optimization of this utility model, the first conveying unit 2 and the second conveying unit 3 both include a driving wheel, a driven wheel and a conveyor belt 24 that are rotatably connected to the box body 1; the surface of the conveyor belt 24 is evenly provided with ventilation holes 25, the diameter of the ventilation holes 25 is smaller than the minimum particle size of the seeds to be dried; the surface of the conveyor belt 24 is provided with hemispherical protrusions 26.

[0036] In this embodiment: the vent 25 ensures that hot air penetrates the conveyor belt 24 and contacts the seeds, and the protrusions 26 increase the gap between the seeds and the conveyor belt 24, reduce adhesion, and improve drying efficiency.

[0037] As a technical optimization of this utility model, a spring damper 27 is fixedly connected to the bottom of the box 1. The spring damper 27 includes a base 28, a guide post 29 vertically fixed to the base 28, a spring member 30 sleeved on the outer periphery of the guide post 29, and a guide seat 31 slidably connected to the outer wall of the guide post 29. The guide seat 31 is fixedly connected to the box 1. A vibration motor 32 is installed at the bottom of the box 1.

[0038] In this embodiment: the vibration motor 32 is started to assist in seed dispersion, and the spring damper 27 reduces the impact of equipment vibration, thus balancing dispersion effect and equipment stability;

[0039] The vibration motor 32 is electrically connected to the controller 34. The controller 34 sets the vibration frequency and amplitude according to the seed type. It is recommended that the vibration frequency be 10-50Hz (adjustable) and that the YZU series vibration motor be used.

[0040] As a technical optimization of this utility model, a temperature sensor 33 is provided inside the box 1, and a controller 34 is provided outside the box 1. The temperature sensor 33 is electrically connected to the controller 34, and the output end of the controller 34 is connected to the electric heating tube 12 and the fan 10.

[0041] In this embodiment, the temperature sensor 33 and the controller 34 work together to achieve automated temperature monitoring and adjustment, avoid human error, and ensure that the drying temperature is accurate and controllable.

[0042] As a technical optimization of this utility model, the width of the connecting cavity 18 is equal to the width of the box body 1, and the width of the conveyor 19 is 1 / 3 of the width of the connecting cavity 18.

[0043] In this embodiment: by limiting the width ratio between the connecting cavity 18 and the conveyor 19, it is ensured that the seeds can evenly cover the width of the conveying unit when the conveyor 19 swings, thus optimizing the fabric coverage.

[0044] As a technical optimization of this utility model, a filter cover 35 is installed at the air inlet of the fan 10.

[0045] In this embodiment: the filter cover 35 filters impurities in the air to avoid contaminating the seeds and ensure a clean drying environment.

[0046] Working principle and usage process of this utility model:

[0047] Seeds enter the connecting cavity 18 of the oscillating cloth-spreading mechanism 5 through the feeding port 23. The conveyor 19 transports the seeds to the discharge end, while the drive motor 22 drives the rotating seat 20 to rotate, causing the conveyor 19 to oscillate left and right, evenly spreading the seeds on the feeding end of the uppermost first conveying unit 2. The seeds are conveyed to the right with the first conveying unit 2, and hot air is blown out by the upper air distribution plate 6 for drying. The seeds fall from the first drop gap and are guided by the guide plate 4 to the lower second conveying unit 3, which then transports them to the left. The upper air distribution plate 6 continues to blow hot air for drying. The above process is repeated, and the seeds fall alternately between multiple conveying units, gradually drying them. The dried seeds finally fall into the V-shaped collection trough 15 at the bottom of the box 1. The screw conveyor 16 pushes the seeds to the left and discharges them through the discharge pipe 17. The temperature sensor 33 monitors the temperature inside the box in real time, and the controller 34 adjusts the power of the electric heating tube 12 and the air volume of the fan 10 according to the set value. The control valve 14 on the diversion pipe 13 can adjust the amount of hot air in each layer of the air distribution cavity 7 individually.

[0048] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0049] However, the above are merely specific embodiments of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A seed drying device, comprising a housing (1), characterized in that: The box (1) is longitudinally staggered with a first conveying unit (2) and a second conveying unit (3) with opposite conveying directions. There are at least two first conveying units (2) and two second conveying units (3). The feeding end of the first conveying unit (2) is close to the left side wall of the box (1), and the discharge end forms a first material drop gap with the right side wall. The feeding end of the second conveying unit (3) is close to the right side wall of the box (1), and the discharge end forms a second material drop gap with the left side wall. A guide plate (4) is inclinedly arranged below both the first and second material drop gaps. The high end of the guide plate (4) is fixed to the inner wall of the box (1). A swinging material distribution mechanism (5) is provided on the top left side of the box (1). The swinging material distribution mechanism (5) is used to uniformly convey seeds into the box (1). Above the first conveying unit (2) and the second conveying unit (3), air distribution plates (6) are arranged in parallel. The air distribution plate (6) has an air distribution cavity (7) inside and an air distribution hole (8) at the bottom. The box body (1) is equipped with a heating device (9) and a fan (10). The heating device (9) includes a housing (11) and multiple sets of electric heating tubes (12). The air outlet of the fan (10) is connected to the bottom of the housing (11). The top of the housing (11) is connected to each air distribution cavity (7) through a diversion pipe (13). A control valve (14) is provided on the diversion pipe (13). The bottom of the box body (1) is equipped with a V-shaped material collection trough (15). A screw conveyor (16) is installed in the material collection trough (15). The lower left side of the box body (1) is connected to the discharge pipe (17).

2. The seed drying equipment according to claim 1, characterized in that: The swing fabric feeding mechanism (5) includes a connecting cavity (18) communicating with the housing (1), a conveyor (19) horizontally arranged in the connecting cavity (18), a rotating seat (20) fixed to the bottom of the conveyor (19), a bearing seat (21), and a drive motor (22). The top of the connecting cavity (18) is provided with a feeding port (23). The feeding end of the conveyor (19) is located below the feeding port (23), and the discharging end extends to the feeding end above the uppermost first conveying unit (2). The bearing seat (21) is fixed to the bottom of the connecting cavity (18), and the bearing seat (21) is rotatably connected to the rotating seat (20) through a bearing. The drive motor (22) is located at the bottom of the connecting cavity (18), and the output shaft of the drive motor (22) is coaxially fixedly connected to the rotating seat (20).

3. The seed drying equipment according to claim 1, characterized in that: The spiral blades of the spiral conveyor (16) are covered with a flexible protective layer, and the outer surface of the flexible protective layer is a smooth arc surface.

4. A seed drying device according to claim 1, characterized in that: The first conveying unit (2) and the second conveying unit (3) both include a drive wheel, a driven wheel and a conveyor belt (24) that are rotatably connected to the box body (1); the surface of the conveyor belt (24) is evenly provided with ventilation holes (25), the diameter of the ventilation holes (25) is smaller than the minimum particle size of the seeds to be dried; the surface of the conveyor belt (24) is provided with hemispherical protrusions (26).

5. A seed drying device according to claim 1, characterized in that: The bottom of the housing (1) is fixedly connected to a spring damper (27). The spring damper (27) includes a base (28), a guide post (29) vertically fixed to the base (28), a spring element (30) sleeved on the outer periphery of the guide post (29), and a guide seat (31) slidably connected to the outer wall of the guide post (29). The guide seat (31) is fixedly connected to the housing (1). A vibration motor (32) is installed at the bottom of the housing (1).

6. A seed drying device according to claim 1, characterized in that: The housing (1) is equipped with a temperature sensor (33) inside and a controller (34) is provided outside the housing (1). The temperature sensor (33) is electrically connected to the controller (34), and the output end of the controller (34) is connected to the electric heating tube (12) and the fan (10).

7. A seed drying device according to claim 2, characterized in that: The width of the connecting cavity (18) is equal to the width of the box (1), and the width of the conveyor (19) is 1 / 3 of the width of the connecting cavity (18).

8. A seed drying device according to claim 1, characterized in that: The air inlet of the fan (10) is equipped with a filter cover (35).

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