Efficient drying device convenient for grain seed test
By using a roller with convection holes and sensor-controlled rolling turning technology in the grain drying device, the problem of uneven temperature and humidity was solved, enabling efficient and low-cost drying of multiple batches of samples and improving the accuracy of the test data.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 上杭县畜牧技术推广站
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-01
AI Technical Summary
In existing technologies, there are problems of uneven temperature and humidity during the grain drying process, resulting in the outer grains being dry while the inside remains wet. Furthermore, traditional equipment is difficult to process multiple samples simultaneously, which is time-consuming and energy-intensive, affecting the accuracy of the test data.
The system uses a roller with convection holes, which is driven by a drive mechanism to rotate and turn the material. The drying process is controlled in real time by temperature and humidity sensors. A solenoid valve is used to automatically discharge moisture, ensuring uniformity of temperature and humidity, and enabling simultaneous drying of multiple batches of samples.
It achieves uniform drying of grains, reduces energy consumption and labor costs, improves drying efficiency and automation, and ensures the accuracy of test data.
Smart Images
Figure CN224188884U_ABST
Abstract
Description
High-efficiency drying device for easy grain seed testing Technical Field
[0001] This utility model belongs to the field of drying equipment, and more specifically it relates to a high-efficiency drying device that facilitates the testing of grain seeds. Background Technology
[0002] Cereals are important food crops, mainly including the seeds of grasses such as rice, corn, wheat, and sorghum, as well as legumes such as soybeans and mung beans. They are rich in carbohydrates, protein, and dietary fiber, forming the basis of global diets and feed, and are widely used in staple foods, brewing, milling, and industrial processing, playing a vital role in ensuring food security.
[0003] Grain variety testing involves evaluating variety characteristics and selecting high-yielding, stress-resistant, and high-quality varieties through field trials and data analysis.
[0004] During the grain testing process, the grains need to be baked. The core purpose of baking is to control the moisture content of the grains. Freshly harvested grains, especially the grains of experimental crops, have a high moisture content. If stored directly, they are prone to mold due to microbial growth or germination due to the temperature rise caused by respiration.
[0005] Traditional natural sun-drying can reduce the moisture content of grains through sunlight and wind, but it is heavily dependent on weather conditions, especially in rainy and humid areas. The drying process is lengthy, requires frequent turning, and the grains in contact with the ground are prone to mold growth due to uneven ventilation. To overcome these limitations, mechanized grain drying technology has gradually developed.
[0006] Modern grain drying primarily uses the principle of hot air convection. Grains are placed inside an oven for drying, but since the grains remain stationary, the surface grains are quickly dried by the hot air, while the inner grains, being surrounded by moisture, are not easily dried by the hot air and remain damp. Furthermore, because the heat and moisture cannot dissipate, the inner grains are actually "cooked" by the hot air in this high-moisture environment.
[0007] Furthermore, routine scientific research experiments typically involve at least three trials and control groups, and sometimes more than ten, with each trial and control group having three to four replicates. This results in a large number of plots in each research field, and a significant number of plants (grains) after harvest. Traditional drying equipment can only process 1-2 samples at a time, making it extremely time-consuming, energy-intensive, and increasing manual labor costs by over 200%, making it difficult to complete the seed evaluation task in a short period. Traditional natural sun-drying is not only time-consuming, but also prone to mold and spoilage, especially during periods of continuous rain. If grain samples are not dried or manually collected promptly, they are highly susceptible to mold and decay, affecting the accuracy of the seed evaluation data.
[0008] Therefore, there is an urgent need for a high-efficiency drying device for grain seed testing that is not affected by time or weather and can dry multiple samples at once. It needs to be highly practical and operable. Currently, there is no such high-efficiency drying device for grain seed testing on the market. Summary of the Invention
[0009] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an efficient drying device for grain seed testing, which can avoid the problems of uneven drying temperature and grains being dry on the outside but overcooked on the inside.
[0010] To achieve the above objectives, the present invention provides the following technical solution:
[0011] An efficient drying device for facilitating grain seed testing includes a drying oven, a frame inside the drying oven, and at least one roller movably mounted on the frame, the roller being driven by a drive mechanism;
[0012] The surface of the roller has several convection holes, and at least one end of the roller is open and a cover plate is detachably connected to the open end.
[0013] The top of the oven is equipped with an air vent, and a solenoid valve is installed inside the air vent. The oven is equipped with a temperature sensor and a humidity sensor, and the solenoid valve is electrically connected to the temperature sensor and the humidity sensor through a controller.
[0014] The advantages of this scheme are at least as follows: Grains are placed inside the drum, and after the cover is closed, the drum can be placed on a stand inside the drying oven. Because the drum surface has convection holes, even turning, drying, and moisture removal are achieved during drum rotation, avoiding uneven drying temperatures and the problem of grains being dry on the outside but overcooked on the inside. Furthermore, temperature and humidity sensors can monitor the temperature and humidity inside the drying oven in real time. When the humidity is too high, the solenoid valve at the top of the oven opens, and moisture is automatically discharged through the top vent. When the temperature is too high or too low, the controller adjusts the temperature inside the oven, effectively drying the grains. This not only allows for the simultaneous drying of multiple batches of samples but also requires only one person to operate, significantly improving automation and operability. Moreover, because this technology can dry multiple batches simultaneously in one dryer, it effectively improves heat conversion efficiency and reduces energy consumption and drying costs.
[0015] The present invention is further configured such that: the driving mechanism includes a plurality of transmission rollers located obliquely below the drum and connected to the drum drive, and at least one of the transmission rollers is driven by a motor.
[0016] The advantages of this scheme are at least as follows: the motor drives the transmission roller to rotate, and since the transmission roller is tangent to the drum, it drives the drum to rotate, thereby realizing the turning of the material inside the drum.
[0017] The present invention is further configured such that at least one drive roller diagonally below the adjacent roller is driven by a belt.
[0018] The advantage of this scheme is at least that it enables the synchronous rotation of multiple rollers.
[0019] The present invention is further configured such that the inner wall of the roller is provided with a wire mesh layer.
[0020] The advantage of this scheme is at least that: since the ends of grains are easily stuck in the convection holes, adding a wire mesh can effectively control the size and density of the mesh, thereby avoiding the problem of grains getting stuck in the convection holes.
[0021] The present invention is further configured such that a clamping ring is fixed at the end of the roller and inside the wire mesh layer.
[0022] The advantage of this scheme is at least that the clamping ring can clamp the wire mesh layer onto the inner wall of the roller, thereby fixing the wire mesh layer.
[0023] The present invention is further configured such that: a screw is fixed to the inner wall of the clamping ring, one end of the screw passes through the cover plate and a nut is provided at the protruding end.
[0024] The advantages of this scheme are at least as follows: the cover plate and the roller can be separated and relatively fixed by rotating the nut, which is simple and convenient to operate.
[0025] The present invention is further configured such that the nut is a wing nut.
[0026] The advantage of this solution is at least that the wing nut is easy to operate.
[0027] The present invention is further configured such that: the wire mesh layer and the clamping ring are both made of metal materials, and the wire mesh layer is butt-welded to the clamping ring and the roller.
[0028] The advantages of this scheme are at least as follows: butt welding is an existing technology that can stably fix the wire mesh layer together with the clamping ring and roller.
[0029] The present invention is further configured such that the middle part of the cover plate is mesh-like.
[0030] The advantage of this design is at least that the mesh structure enhances the air permeability of the grain inside the drum.
[0031] In summary, this utility model has at least the following advantages:
[0032] 1. By placing a drum with convection holes on a stand and driving it to roll, grains are placed inside the drum. After covering it with a cover plate, the drum can be placed on a stand inside the drying oven. Because the drum surface has convection holes, uniform turning, drying, and moisture discharge can be achieved during the drum rolling process, avoiding uneven drying temperature and the problem of the grains being dry on the outside but overcooked on the inside.
[0033] In addition, the rollers are placed inside an oven with an air vent, and temperature and humidity sensors are installed to control the temperature and humidity (moisture). The temperature and humidity sensors can monitor the temperature and humidity (moisture) inside the oven in real time. When the humidity (moisture) is too high, the solenoid valve at the top of the oven opens, and the moisture is automatically discharged to the air vent at the top. When the temperature is too high or too low, the controller will adjust the temperature inside the oven to effectively dry the grains.
[0034] This technology not only enables simultaneous baking of multiple batches of samples, but also requires only one operator, significantly improving automation and operability. Furthermore, because it allows for simultaneous drying of multiple batches within a single dryer, it effectively enhances heat conversion efficiency and reduces energy consumption and baking costs.
[0035] 2. By setting up a wire mesh layer, since the ends of grains are easily stuck in the convection holes, adding a wire mesh can effectively control the size and density of the mesh, thereby avoiding the problem of grains getting stuck in the convection holes. Attached Figure Description
[0036] Figure 1 is a schematic diagram of a preferred embodiment of the present invention;
[0037] Figure 2 is a schematic diagram of a preferred embodiment of the internal structure of the oven in this utility model;
[0038] Figure 3 is an exploded view of a preferred embodiment of the roller in this utility model.
[0039] Reference numerals: 1. Oven; 2. Stand; 3. Roller; 31. Convection hole; 4. Drive mechanism; 41. Transmission roller; 42. Belt; 5. Cover plate; 6. Air inlet; 61. Solenoid valve; 7. Wire mesh layer; 8. Clamping ring; 9. Screw; 10. Nut. Detailed Implementation
[0040] The present invention will be further described in detail below with reference to the accompanying drawings.
[0041] An efficient drying device for facilitating grain seed testing, as shown in Figures 1 and 2, includes an oven 1 with a door on the side, a support frame 2 inside the oven 1, and a heating wire (or heating plate, heating rod, or any other heating mechanism) inside the support frame 2 or the oven 1 to generate heat. At least one temperature sensor is also installed inside the oven 1. The heating wire is electrically connected to the temperature sensor through a controller. When the temperature is too high or too low, the controller will adjust the temperature inside the oven 1 to effectively dry the grain seeds.
[0042] As shown in Figures 1 and 2, the top of the oven 1 is equipped with an air vent 6, and an electromagnetic valve 61 is installed inside the air vent 6. At least one humidity sensor is also installed inside the oven 1. The electromagnetic valve 61 is electrically connected to the humidity sensor through a controller. When the humidity (moisture) is too high, the electromagnetic valve 61 at the top of the oven 1 will be opened, and the moisture will automatically be discharged into the top air vent 6.
[0043] In some embodiments, as shown in Figures 2 and 3, at least one roller 3 is movably mounted on the stand 2, and the roller 3 is driven to rotate by a drive mechanism 4. A plurality of convection holes 31 are penetrating the surface of the roller 3, and at least one end of the roller 3 is open and a cover plate 5 is detachably connected to the open end. Grains are placed inside the roller 3, and after the cover plate 5 is closed, the roller 3 is placed on the stand 2 inside the drying oven 1. Because the surface of the roller 3 has convection holes 31, uniform turning, drying, and moisture discharge can be achieved during the rolling of the roller 3, avoiding the problems of uneven drying temperature and grains that are dry on the outside but overcooked on the inside.
[0044] In some embodiments, as shown in Figures 2 and 3, the drive mechanism 4 includes a plurality of drive rollers 41 disposed obliquely below and driven to the drum 3. At least one drive roller 41 is driven to rotate by a motor (not shown). During operation, the motor drives the drive rollers 41 to rotate. Since the drive rollers 41 are driven to the drum 3, they drive the drum 3 to rotate, thereby turning the material inside the drum 3. In some preferred embodiments, the engagement structure between the drive rollers 41 and the drum 3 can be tangential or gear meshing. In tangential engagement, to ensure that the drive rollers 41 can drive the drum 3 to rotate, a frictional material (such as rubber) can be provided on the surface of the drive rollers 41 and / or the surface of the drum 3. In addition, to slow down the rotation speed of the drum 3, in some embodiments, a speed-changing structure (such as a gearbox, reducer, etc.) can be provided between the motor, the drive rollers 41 and the drum 3. In order to achieve synchronous rotation of multiple drums 3, in some embodiments, at least one drive roller 41 obliquely below adjacent drums 3 can be driven by a belt 42.
[0045] As shown in Figures 2 and 3, since the ends of the grains are easily stuck in the convection holes 31, in some embodiments, a wire mesh layer 7 can be provided on the inner wall of the roller 3. A clamping ring 8 is fixed at the end of the roller 3 and inside the wire mesh layer 7. The wire mesh layer 7 and the clamping ring 8 are preferably made of metal, especially stainless steel. The clamping ring 8 is fixed to the roller 3 by welding points. Adding a wire mesh can effectively control the size and density of the mesh openings. For example, the mesh count of the wire mesh can be set to 80 mesh or 100 mesh or a mesh count smaller than the grain diameter (transverse diameter), thereby avoiding the problem of grains getting stuck in the convection holes 31.
[0046] Furthermore, in some embodiments, as shown in Figures 2 and 3, a screw 9 is spot-welded to the inner wall of the clamping ring 8. One end of the screw 9 passes through the cover plate 5 and a nut 10 is provided at the protruding end. The nut 10 is preferably a wing nut 10. Rotating the nut 10 can separate and relatively fix the cover plate 5 from the roller 3, thereby allowing the grain seeds to be placed into and removed from the roller 3. To enhance the air permeability of the grains inside the roller 3, the middle part of the cover plate 5 can be made into a mesh (not shown).
[0047] The working process and beneficial effects of this utility model are as follows: Grains are placed inside the drum 3, and after the cover plate 5 is closed, the drum 3 can be placed on the stand 2 inside the drying oven 1. Since the surface of the drum 3 has convection holes 31, uniform turning, drying, and moisture discharge can be achieved during the rolling process of the drum 3, avoiding the problems of uneven drying temperature and grains that are dry on the outside but overcooked on the inside. In addition, temperature and humidity sensors can monitor the internal temperature and humidity (moisture) of the drying oven 1 in real time. When the humidity (moisture) is too high, the solenoid valve 61 at the top of the drying oven 1 opens, and the moisture (moisture) will automatically be discharged to the top air vent 6. When the temperature is too high or too low, the controller will adjust the temperature inside the drying oven 1 to effectively dry the grains.
[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A high-efficiency drying device for facilitating grain seed testing, comprising a drying oven (1), characterized in that: The oven (1) is provided with a stand (2), and at least one roller (3) is movably mounted on the stand (2). The roller (3) is driven by a drive mechanism (4). The surface of the roller (3) is perforated with several convection holes (31). At least one end of the roller (3) is open and a cover plate (5) is detachably connected to the open end. The top of the oven (1) is provided with an air inlet (6), and an electromagnetic valve (61) is provided inside the air inlet (6). The oven (1) is provided with a temperature sensor and a humidity sensor. The electromagnetic valve (61) is electrically connected to the temperature sensor and the humidity sensor through a controller.
2. The efficient drying device for facilitating grain seed testing according to claim 1, characterized in that: The drive mechanism (4) includes a plurality of drive rollers (41) located obliquely below the roller (3) and connected to the roller (3) in a drive mechanism, and at least one of the drive rollers (41) is driven by a motor.
3. The efficient drying device for facilitating grain seed testing according to claim 2, characterized in that: At least one drive roller (41) diagonally below the adjacent roller (3) is driven by a belt (42).
4. The efficient drying device for facilitating grain seed testing according to claim 1, characterized in that: The inner wall of the roller (3) is provided with a wire mesh layer (7).
5. The efficient drying device for facilitating grain seed testing according to claim 4, characterized in that: A clamping ring (8) is fixed at the end of the roller (3) and inside the wire mesh layer (7).
6. The efficient drying device for facilitating grain seed testing according to claim 5, characterized in that: The inner wall of the clamping ring (8) is fixed with a screw (9), one end of which passes through the cover plate (5) and a nut (10) is provided at the protruding end.
7. The efficient drying device for facilitating grain seed testing according to claim 6, characterized in that: The nut (10) is a wing nut (10).
8. The efficient drying device for facilitating grain seed testing according to claim 5, characterized in that: The wire mesh layer (7) and the clamping ring (8) are both made of metal materials, and the wire mesh layer (7) is welded to the clamping ring (8) and the roller (3).
9. The efficient drying device for facilitating grain seed testing according to claim 8, characterized in that: The middle part of the cover plate (5) is mesh-like.