A layered grain dryer
Patent Information
- Application Number
- CN202522033993.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-22
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-09-22
AI Technical Summary
[0003]现有的谷物烘干设备，都是只设置有一个缓苏仓，当谷物在烘干室内烘干后，将谷物放入缓苏仓内进行缓苏使谷物堆内部水分保持均衡，但是由于谷物在缓苏仓内的缓苏时间要比干燥时间长很多，干燥仓需要等到缓苏完成才能开始干燥下一批谷物，不能连续进行谷物干燥，降低谷物干燥效率
该烘干机中设置了三层缓苏仓，且三层缓苏仓之间设置有互相连通的开口，并在开口上设置用于控制物料流通的开合机构，当第一批谷物在第一烘干仓内通过干燥机构进行第一次烘干后，将谷物排入最上层的缓苏仓内，当排完后，谷堆在缓苏仓内进行缓苏，第一烘干仓立即装入第二批谷物开始烘干，第二批谷物烘干完成后，第一批谷物从第一层缓苏仓内流入下一层缓苏仓内继续缓苏，循环往复，实现连续烘干，提升烘干效率。该烘干机构还通过在缓苏仓底板设置第二烘干仓，对缓苏后的谷物进行二次烘干，避免水分残留，提升烘干质量。
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Figure CN224838244U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grain production technology, and more specifically, to a layered grain dryer. Background Technology
[0002] During grain production, after harvesting, a large amount of grain is wasted because it is not dried or its internal moisture is not removed in time during threshing, drying, storage, transportation, processing, and consumption. Therefore, it is essential to dry the grain promptly after harvesting. In the grain drying process, the grain is first dried and then placed in a tempering bin to allow the internal moisture to migrate to the surface of the pile, making the moisture content more uniform and reducing the breakage rate during subsequent drying.
[0003] Existing grain drying equipment typically only has one tempering chamber. After the grain is dried in the drying chamber, it is placed in the tempering chamber to temper it and maintain a uniform moisture content within the grain pile. However, since the tempering time in the tempering chamber is much longer than the drying time, the drying chamber must wait until tempering is complete before it can begin drying the next batch of grain. This prevents continuous grain drying and reduces grain drying efficiency. Utility Model Content
[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a layered grain dryer that can continuously dry grains.
[0005] To solve the above problems, the present invention adopts the following technical solution.
[0006] A tiered grain dryer includes: The first drying chamber is used to hold grains; a discharge port is opened at the bottom of the first drying chamber. The second drying chamber is located below the first drying chamber and is used to hold grains; A tempering box is disposed between the first drying chamber and the second drying chamber; the tempering box includes three tempering chambers and three bottom plates; the three bottom plates are disposed at an angle to the bottom of the three tempering chambers; the lowest point of each of the three bottom plates is provided with an opening for guiding material; the top of the tempering box is connected to the discharge port for introducing grains into the first drying chamber; Drying mechanisms, installed on the inner walls of the first drying chamber and the second drying chamber, are used for drying grains; and Four opening and closing mechanisms are installed one-to-one on the discharge port of the first drying chamber and on the openings of the three-layer bottom plate to control the flow of grain.
[0007] The technical solutions described above in this application have at least the following technical effects: This dryer features three layers of tempering chambers, interconnected by openings with mechanisms to control material flow. After the first batch of grain undergoes initial drying in the first drying chamber, it is discharged into the top tempering chamber. Once discharged, the grain undergoes tempering within the tempering chamber. Immediately afterward, the first drying chamber is filled with the second batch of grain for drying. After the second batch is dried, the first batch flows from the first tempering chamber into the next, continuing the cycle for continuous drying and improved efficiency. Furthermore, a second drying chamber is installed at the bottom of the tempering chambers for secondary drying, preventing moisture residue and enhancing drying quality.
[0008] In some embodiments, the first drying chamber further includes a feed pipe disposed at the top of the first drying chamber for introducing grains.
[0009] In some embodiments, the three layers of the slow-release chamber bottom plate are arranged symmetrically.
[0010] In some embodiments, the three-layer soothing chamber further includes an exhaust port disposed on the inner wall of the three-layer soothing chamber for discharging gas.
[0011] In some embodiments, the opening and closing mechanism includes: A cover plate is disposed over the opening; and A telescopic actuator is installed on the bottom plate of the slow-release chamber, and its output end is connected to the cover plate, for controlling the opening and closing of the cover plate and the discharge port.
[0012] In some embodiments, the drying mechanism includes: Heating elements, disposed on the inner walls of the first drying chamber and the second drying chamber, are used to heat and dry grains; and The air blower is installed on the inner wall of the first drying chamber and the inner wall of the second drying chamber to accelerate airflow.
[0013] In some embodiments, the layered grain dryer further includes a stirring mechanism disposed within the first drying chamber and the second drying chamber.
[0014] In some embodiments, the stirring mechanism includes: A rotating shaft is installed inside the first drying chamber and the second drying chamber; A driver, disposed on the first drying chamber and the second drying chamber, with its output end connected to the rotating shaft, is used to rotate and drive the rotating shaft; and A stirring rod, mounted on the rotating shaft, is used to agitate the grains.
[0015] In some embodiments, the layered grain dryer further includes a discharge component disposed on one side of the second drying chamber and connected to the interior of the second drying chamber for discharging grain from the second drying chamber. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of a layered grain dryer according to the present invention; Figure 2 This is a cross-sectional view of the internal structure of this utility model; Figure 3 This is a half-sectional view of the internal structure of this utility model; Figure 4 This is a schematic diagram of the opening and closing mechanism of this utility model.
[0017] The following are the labels in the diagram: 10. First drying chamber; 11. Discharge port; 12. Feed pipe; 20. Second drying chamber; 30. Tempering box; 31. Tempering chamber; 311. Exhaust vent; 32. Opening; 33. Bottom plate; 40. Drying mechanism; 41. Heating element; 42. Blower; 50. Opening and closing mechanism; 51. Cover plate; 52. Telescopic actuator; 60. Stirring mechanism; 61. Rotating shaft; 62. Actuator; 63. Stirring rod; 70. Discharge component. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figure 2 and Figure 3 This application provides a layered grain dryer, comprising: a first drying chamber 10 for holding grain. The first drying chamber 10 has a discharge port 11 at its bottom. A second drying chamber 20, located below the first drying chamber 10, is also used for holding grain. A tempering box 30 is located between the first drying chamber 10 and the second drying chamber 20. The tempering box 30 includes three tempering chambers 31 and three bottom plates 33. The three bottom plates 33 are inclinedly arranged at the bottom of the three tempering chambers 31. Each of the three bottom plates 33 has an opening 32 at its lowest point for guiding material. The top of the tempering box 30 is connected to the discharge port 11 for introducing grain into the first drying chamber 10. A drying mechanism 40 is located on the inner sidewall of the first drying chamber 10 and the inner sidewall of the second drying chamber 20 for drying the grain. Four opening and closing mechanisms 50 are correspondingly arranged on the discharge port 11 of the first drying chamber 10 and the openings 32 of the three bottom plates 33 for controlling the flow of grain.
[0020] Understandably, the first drying chamber 10 and the second drying chamber 20 are containers for holding moist grains. They can be, for example, round or square, but are not limited to these forms. The second drying chamber 20 is connected to the bottommost tempering chamber 31 of the tempering box 30, and holds the grain introduced through the bottom tempering chamber 31. Therefore, the second drying box can be an open-top container connected to the bottom of the tempering box 30 with screws, or it can be a container integrally formed with the tempering box 30, but is not limited to these forms. The tempering box 30 is a hollow cavity used to settle the grains and ensure even moisture distribution within them. It can be a single settling cavity or multiple settling cavities, but is not limited to these forms. The top of the tempering box 30 is connected to the discharge port 11 and receives the grain introduced through the discharge port 11. For example, the tempering box 11 can be an open box with an open top, or the top of the tempering box 30 can be equipped with a conduit connecting the discharge port 11 and the tempering box 30, with the grain introduced through the conduit, etc., but not limited to these methods. The interior of the tempering box 30 is divided into multiple sealed compartments to ensure that multiple batches of rice can be stored and tempered simultaneously. For example, it can be divided into multiple compartments horizontally, with the upper and lower compartments interconnected and equipped with openable and closable sealed doors, or it can be divided into multiple rows of compartments vertically, with the bottom plate 33 of each row of compartments equipped with openable and closable sealed doors connecting to the second drying compartment 20, etc., but not limited to these methods. The drying mechanism 40 is a component that removes excess moisture from the grain pile. For example, it can be a spin-drying mechanism 40, or a heating drying mechanism 40, etc., but not limited to these methods. The opening and closing mechanism 50 is a component that controls the opening and closing state of the discharge port 11 and the opening 32. For example, it can be a rotary opening and closing mechanism 50 or a push-pull opening and closing mechanism 50, but it is not limited to these.
[0021] As described above, the dryer is equipped with three layers of tempering chambers 31, and the three layers of tempering chambers 31 are interconnected by openings 32. Opening and closing mechanisms 50 for controlling material flow are installed on the openings 32. After the first batch of grain undergoes its first drying in the first drying chamber 10 via the drying mechanism 40, the grain is discharged into the uppermost tempering chamber 31. After discharge, the grain pile undergoes tempering in the tempering chamber 31. The first drying chamber 10 is then immediately loaded with the second batch of grain to begin drying. After the second batch of grain is dried, the first batch of grain flows from the first tempering chamber 31 into the next tempering chamber 31 for further tempering, repeating the cycle to achieve continuous drying and improve drying efficiency. The drying mechanism also includes a second drying chamber 20 installed on the bottom plate 33 of the tempering chamber 31 for secondary drying of the tempered grain, preventing moisture residue and improving drying quality.
[0022] Optionally, in some embodiments, please refer to Figure 1 and Figure 2The first drying chamber 10 also includes a feed pipe 12 disposed at the top of the first drying chamber 10 for introducing grains.
[0023] It is understandable that the wet grains are poured into the first drying chamber 10 through the feed pipe 12, which can be a fixed straight pipe or a telescopic hose, but is not limited to this.
[0024] Optionally, in some embodiments, please refer to Figure 2 The bottom plate 33 of the three-layer slow-release compartment 31 is set in a diagonal Z-shape.
[0025] Understandably, the bottom plate 33 of the three-layer tempering bin 31 is arranged in a zigzag shape to guide the grain to the opening 32 at the lowest point of the bottom plate 33. For example, it can be an inclined arrangement with the left side higher than the right side, or an inclined arrangement with the middle lower than the two sides, etc., but not limited to these. The inclination angles between the layers of tempering bins 31 are set opposite, so that when the grain from the higher-layer tempering bin 31 falls to the lower-layer tempering bin 31, the grain falls to the highest point of the first-layer tempering bin 31. For example, the bottom plate 33 of the first-layer tempering bin 31 can be set with the left side higher than the right side, and the bottom plate 33 of the next-layer tempering bin 31 can be set with the left side lower than the right side, and so on. Alternatively, a guide pipe can be set on the opening 32 of each layer to guide the grain flowing out of the opening 32 to the highest point of the bottom plate 33 of the lower-layer tempering bin 31, etc., but not limited to these.
[0026] With this configuration, the bottom plate 33 of the tempering bin 31 is inclined, and the opening 32 is located at the lowest point. When the opening and closing mechanism 50 is opened, the grain automatically falls along the inclined surface to the opening 32 and is discharged into the next tempering bin 31 through the opening 32. Automatic discharge is achieved without an arrangement mechanism, saving energy. At the same time, the inclination angles of each layer of tempering bins 31 are set relatively, so that when the grain falls, it lands at the highest point of the bottom plate 33 and is guided into the bottom plate 33 of the tempering bin 31 through the inclined bottom plate 33. This prevents uneven distribution of grain in the tempering bin 31 and improves the utilization rate of the tempering bin 31.
[0027] Optionally, in some embodiments, please refer to Figure 3 The three-layer refrigeration chamber 31 also includes an exhaust port 311 disposed on the inner wall of the three-layer refrigeration chamber 31 for discharging gas.
[0028] Understandably, the vent is the vent 311 of the slow-release bin 31, which is used to expel excess heat and exhaust gas from the grain pile. For example, it can be a filter vent or a pressure-controlled vent, but it is not limited to these.
[0029] With this setup, the exhaust gas generated by heating the water in the grain pile is discharged through the vent, ensuring that the pressure in the tempering chamber 31 is equal to that in the outside, preventing the pressure inside the tempering chamber 31 from being too high, which would cause uneven distribution of moisture inside the grain pile and affect the tempering effect.
[0030] Optionally, in some embodiments, please refer to Figure 4 The opening and closing mechanism 50 includes: a cover plate 51, which is disposed on the opening 32; and a telescopic actuator 52, which is disposed on the bottom plate 33 of the slow-release chamber 31 and whose output end is connected to the cover plate 51, for controlling the cover plate 51 to open and close the opening 32 and the discharge port 11.
[0031] Understandably, the cover plate 51 is a component that closes the opening 32 and thus controls the flow of grain. For example, it can be a sliding cover plate 51, or a hinge plate, but it is not limited to these. The telescopic actuator 52 is a component that controls the movement of the cover plate 51. For example, it can be a pressure-type telescopic actuator 52, or an electric telescopic actuator 52, but it is not limited to these.
[0032] With this setup, the flow and exchange of grains can be controlled in real time via the cover plate 51 and the telescopic drive 52, allowing for a more flexible arrangement of the drying process.
[0033] Optionally, in some embodiments, please refer to Figure 3 The drying mechanism 40 includes: a heating element 41, disposed on the inner wall of the first drying chamber 10 and the inner wall of the second drying chamber 20, for heating and drying the grains; and a blowing element 42, disposed on the inner wall of the first drying chamber 10 and the inner wall of the second drying chamber 20, for accelerating airflow.
[0034] Understandably, the heating element 41 is a component that heats the air inside the first drying chamber 10 and the second drying chamber 20. For example, it can be a resistance heating tube or an electromagnetic heating coil, but it is not limited to these. The blowing element 42 is a component that rapidly disperses the hot air heated by the heating element 41 throughout the drying chamber. For example, it can be a centrifugal fan or an axial fan, but it is not limited to these.
[0035] With this configuration, the heating element 41 heats the air, while the blowing element 42 accelerates the internal airflow, allowing the hot air to quickly fill the first drying chamber 10 and the second drying chamber 20, thereby improving drying efficiency, ensuring uniform heating of the grains, and preventing grain clumping.
[0036] Optionally, in some embodiments, please refer to Figure 2 A layered grain dryer also includes a stirring mechanism 60 disposed in the first drying chamber 10 and the second drying chamber 20.
[0037] Understandably, the stirring mechanism 60 is a component that agitates the grains in the first drying chamber 10 and the second drying chamber 20. For example, it can be a spiral stirring mechanism 60 or a scraper-type stirring mechanism 60, but it is not limited to these.
[0038] With this setup, during the drying process, the stirring mechanism 60 turns the grain pile over, ensuring that the grain is evenly exposed to the hot air, preventing localized overheating or overdrying of the grain pile, which could lead to grain clumping or sticking to the walls.
[0039] Optionally, in some embodiments, please refer to Figure 2 The stirring mechanism 60 includes: a rotating shaft 61 disposed inside the first drying chamber 10 and the second drying chamber 20; a driver 62 disposed on the first drying chamber 10 and the second drying chamber 20, with its output end connected to the rotating shaft 61, for rotating and driving the rotating shaft 61; and a stirring rod 63 disposed on the rotating shaft 61 for turning the grains.
[0040] Understandably, the driver 62 is a component that provides the power to rotate the stirring rod. For example, it can be a pneumatic driver 62 or an electric driver 62, but it is not limited to these. The stirring rod is a component that stirs the grains by motion to prevent them from clumping. For example, it can be a straight plate stirring rod or a blade stirring rod, but it is not limited to these.
[0041] Optionally, in some embodiments, please refer to Figure 2 The layered grain dryer also includes a discharge component 70 disposed on one side of the second drying chamber 20 and connected to the inside of the second drying chamber 20 for discharging the grain inside the second drying chamber 20.
[0042] Understandably, the discharge component 70 is a part that sends the dried grain out of the dryer. For example, it can be a negative pressure airflow discharge device or a spiral discharge device, but it is not limited to these.
[0043] With this setup, the dried grains are discharged through the discharge component 70, eliminating the need for manual operation and reducing the labor intensity of workers.
[0044] As can be seen from the above, after the first batch of grain is introduced into the first drying chamber 10 and the drying mechanism 40 is started to dry the grain, the first batch of grain is introduced into the first layer tempering chamber 31 through the discharge port 11 for tempering. At the same time, the second batch of grain is introduced into the first drying chamber 10 for drying. When the second batch of grain is dried, the opening and closing mechanism 50 is opened, the first batch of grain is introduced into the second layer tempering chamber 31, and the second batch of grain enters the first layer tempering chamber 31. This cycle is repeated, and finally the grain enters the second drying chamber 20 to dry the residual moisture and is then discharged.
[0045] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. A layered grain dryer, characterized in that, include: The first drying chamber is used to store grains; The first drying chamber has a discharge port at the bottom; The second drying chamber is located below the first drying chamber and is used to hold grains; A tempering box is disposed between the first drying chamber and the second drying chamber, and its top is connected to the discharge port; the tempering box includes three tempering chambers and three bottom plates; the three bottom plates are disposed at an angle to the bottom of the three tempering chambers; and the lowest point of each of the three bottom plates is provided with an opening for guiding material. Two drying mechanisms are respectively installed on the inner wall of the first drying chamber and the inner wall of the second drying chamber for drying grains; as well as Four opening and closing mechanisms are installed one-to-one on the discharge port of the first drying chamber and on the openings of the three-layer bottom plate to control the flow of grain.
2. A layered grain dryer as described in claim 1, characterized in that, The first drying chamber also includes a feed pipe disposed at the top of the first drying chamber for introducing grains.
3. A layered grain dryer as described in claim 1, characterized in that, The bottom plate of the three-layer slow-release compartment is set in a diagonal Z-shape.
4. A layered grain dryer as described in claim 1, characterized in that, The third-layer soothing chamber also includes an exhaust port disposed on the inner wall of the third-layer soothing chamber for discharging gas.
5. A layered grain dryer as described in claim 1, characterized in that, The opening and closing mechanism includes: A cover plate is disposed on the discharge port and the opening; and A telescopic actuator is installed on the bottom plate of the slow-release chamber, and its output end is connected to the cover plate, for controlling the opening and closing of the cover plate and the discharge port.
6. A layered grain dryer as described in claim 1, characterized in that, The drying mechanism includes: Heating elements, disposed on the inner walls of the first drying chamber and the second drying chamber, are used to heat and dry grains; and The air blower is installed on the inner wall of the first drying chamber and the inner wall of the second drying chamber to accelerate airflow.
7. A layered grain dryer as described in claim 1, characterized in that, The layered grain dryer also includes a stirring mechanism disposed in the first drying chamber and the second drying chamber.
8. A layered grain dryer as described in claim 7, characterized in that, The stirring mechanism includes: A rotating shaft is installed inside the first drying chamber and the second drying chamber; A driver, disposed on the first drying chamber and the second drying chamber, with its output end connected to the rotating shaft, is used to rotate and drive the rotating shaft; and A stirring rod, mounted on the rotating shaft, is used to agitate the grains.
9. A layered grain dryer as described in claim 1, characterized in that, The layered grain dryer also includes a discharge component disposed on one side of the second drying chamber and connected to the interior of the second drying chamber for discharging the grain from the second drying chamber.