A batch cycle dryer with double drying layers
By introducing a double drying layer and an optimized drying method into the batch circulating dryer, the problem of slow drying rate in the existing technology has been solved, and a highly efficient and uniform grain drying effect has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI JINXI MECHANICAL TECH
- Filing Date
- 2025-08-07
- Publication Date
- 2026-06-26
AI Technical Summary
Existing batch circulating grain dryers only use one drying layer, resulting in a slow drying rate that cannot meet the demand for efficient and uniform drying.
The design incorporates a batch circulating dryer with dual drying layers, including an upper drying layer and a lower drying layer. It employs a combination of cross-flow and mixed-flow drying methods and optimizes the control of hot and cold air through air inlet components, dehumidification components, and air control components.
It improved drying efficiency, enhanced drying uniformity, reduced breakage rate, and achieved intelligent control.
Smart Images
Figure CN224415570U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dryer technology, specifically a batch circulating dryer with a double drying layer. Background Technology
[0002] Batch-type circulating grain dryers are agricultural machines that achieve efficient and uniform drying of grains through batch-circulating operations. They are widely used in the post-harvest processing of grains such as rice, wheat, and corn. Their core advantages lie in high drying uniformity, low breakage rate, and intelligent control, making them suitable for large-scale grain growers, grain processing enterprises, and post-harvest service centers.
[0003] Existing batch circulating grain dryers generally use only one drying layer, and their drying processes are either cross-flow or mixed-flow, resulting in a slow drying rate. Therefore, there is a need to provide a batch circulating dryer with two drying layers. Utility Model Content
[0004] The purpose of this invention is to provide a batch circulating dryer with a double drying layer to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A batch circulating dryer with a double drying layer includes:
[0007] A drying oven, comprising an upper drying layer, a tempering layer and a lower drying layer from top to bottom, wherein an angular box is provided in the upper drying layer, and a leak-proof groove is provided on the top of the angular box, and an air jet is provided in the leak-proof groove;
[0008] An air inlet assembly includes a lower air inlet hood disposed on the lower drying layer, an upper air inlet hood disposed on the upper drying layer, an air supply pipe disposed on the lower air inlet hood, and a blower disposed on the air supply pipe and connected to the upper air inlet hood. The lower air inlet hood is used to introduce hot air into the lower drying layer, and the blower draws hot air from the lower air inlet hood and supplies it into the corner box, which then sends it into the upper drying layer from the bottom of the corner box and the air jet.
[0009] A dehumidification assembly is disposed at the lower drying layer and on the opposite side of the upper air inlet hood, and the dehumidification assembly is used to extract moisture from the drying chamber;
[0010] An air control component is disposed on the air inlet hood and is used to control the intake volume of hot and cold air.
[0011] Preferably, the upper drying layer is provided with staggered support rods.
[0012] Preferably, the thaw layer is provided with a middle guide plate and side guide plates;
[0013] The intermediate guide plate includes a triangular guide tube, a protective plate disposed on the top of the triangular guide tube, an inner connecting plate disposed at both ends of the triangular guide tube and connected to the inner wall of the quenching layer, a pressure rod inserted into the inner wall of the quenching layer, and a pressure plate disposed on the pressure rod and clamped on the protective plate.
[0014] The side guide plate is provided with a side connecting plate that is connected to the inner wall of the thaw layer.
[0015] Preferably, the lower drying layer is provided with a mesh partition, and the mesh partitions are connected by a bracket to divide the lower drying layer into a hot air channel and a grain channel. The triangular guide pipe and the side guide plate are arranged above the hot air channel to guide the grain into the grain channel.
[0016] Preferably, the dehumidification assembly includes a rear air outlet hood disposed on the lower drying layer and opposite to the upper air inlet hood, a dehumidification fan disposed on the rear air outlet hood, an air outlet pipe disposed on the dehumidification fan, and a support frame.
[0017] Preferably, the dehumidifying fan is used to extract the humid hot air from the hot air duct.
[0018] Preferably, the air control assembly includes an air control duct and a cold air control mechanism disposed on the lower air inlet hood, and a hot air control mechanism disposed on the air control duct.
[0019] Preferably, the hot air control mechanism includes rotating blades disposed on the air control duct, a lever disposed on the rotating blades, and a hot air master lever disposed on the lever.
[0020] Preferably, the cold air control mechanism includes a cold air inlet disposed on the lower air inlet shroud, a rotating baffle disposed at the cold air inlet, an alignment opening opened on the rotating baffle, and a cold air master lever disposed on the rotating baffle.
[0021] Preferably, the hot air master lever is moved to rotate the rotating blades and control the hot air intake volume, and the cold air master lever is moved to adjust the alignment area of the cold air inlet and the alignment port and control the cold air intake volume.
[0022] Compared with the prior art, the beneficial effects of this utility model are:
[0023] This invention improves drying efficiency by using an upper drying layer and a lower drying layer, allowing two drying methods to be performed simultaneously. The anti-leakage groove and air jet, combined with the opening at the bottom of the angular box, enhance the mixed-flow drying efficiency. The air control component allows for convenient adjustment of the hot air temperature, preventing excessively high or low temperatures and controlling the airflow. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the structure of this utility model;
[0025] Figure 2 This is a schematic diagram of the exploded structure of this utility model;
[0026] Figure 3 This is a schematic diagram of the internal structure of the upper drying layer and the tempering layer of this utility model;
[0027] Figure 4 This is a schematic diagram of the structure of the upper drying layer of this utility model;
[0028] Figure 5 This is a schematic diagram of the structure of the lower air inlet hood and the cold air control mechanism of this utility model;
[0029] Figure 6 This is a schematic diagram of the structure of the lower air inlet shroud of this utility model;
[0030] Figure 7 This is a schematic diagram of the structure of the cooling air control mechanism of this utility model;
[0031] Figure 8 This is a schematic diagram of the air control duct of this utility model;
[0032] Figure 9 This is a schematic diagram of the internal structure of the thawing layer of this utility model;
[0033] Figure 10 This is a schematic diagram of the structure of the intermediate guide plate of this utility model;
[0034] Figure 11 This is a cross-sectional view of the lower drying layer of this utility model;
[0035] Figure 12 This is a schematic diagram of the corner box of this utility model;
[0036] Figure 13 This is a structural schematic diagram of the angular box of this utility model from another perspective.
[0037] In the diagram: 1. Upper drying layer; 2. Tempering layer; 3. Lower drying layer; 4. Corner box; 5. Leak-proof groove; 6. Air jet nozzle; 7. Lower air inlet hood; 8. Upper air inlet hood; 9. Air supply duct; 10. Blower; 11. Support rod; 12. Side guide plate; 13. Triangular guide pipe; 14. Protective plate; 15. Inner connecting plate; 16. Pressure rod; 17. Pressure plate; 18. Side connecting plate; 19. Mesh partition; 20. Bracket; 21. Hot air passage; 22. Grain passage; 23. Rear air outlet hood; 24. Dehumidifying fan; 25. Air outlet duct; 26. Support frame; 27. Air control duct; 28. Rotating blade; 29. Toggle lever; 30. Hot air main lever; 31. Cold air inlet; 32. Rotating baffle; 33. Alignment port; 34. Cold air main lever. Detailed Implementation
[0038] 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.
[0039] Please see Figures 1 to 13 This utility model provides a technical solution:
[0040] A batch circulating dryer with a double drying layer includes:
[0041] The drying chamber comprises, from top to bottom, an upper drying layer 1, a tempering layer 2, and a lower drying layer 3. An angled box 4 is installed inside the upper drying layer 1, and is fixedly connected to the inner wall of the upper drying layer 1 by bolts or other means. One end and the bottom of the angled box 4 have openings. The end opening of the angled box 4 communicates with the outside of the drying chamber, allowing hot air to enter from the end opening and be fed into the upper drying layer 1 from the bottom opening. A leak-proof groove 5 is provided on the top of the angled box 4, extending along the thickness of the inclined surface at the top of the angled box 4. An air jet 6 is installed within the leak-proof groove 5, located at the highest point of the leak-proof groove 5 to prevent grain from leaking out through the air jet 6. The upper drying layer 1 is provided with staggered support rods 11, which are fixedly connected to the inner wall of the upper drying layer 1 by means of bolts, etc., to improve the structural strength of the upper drying layer 1. The lower drying layer 3 is provided with mesh partitions 19, which are connected to each other by brackets 20 and are also connected to the inner wall of the lower drying layer 3 by means of bolts, etc. The brackets 20 are fixedly connected to the inner wall of the lower drying layer 3 by means of bolts, etc., dividing the lower drying layer 3 into a hot air channel 21 and a grain channel 22, which are spaced apart.
[0042] The air inlet assembly includes a lower air inlet hood 7, an upper air inlet hood 8, an air supply duct 9, and a blower 10. The lower air inlet hood 7 is installed on the lower drying layer 3 and is fixedly connected to the inner wall of the lower drying layer 3 by means of bolts and gaskets. The upper air inlet hood 8 is installed on the upper drying layer 1 and is fixedly connected to the inner wall of the upper drying layer 1 by means of bolts and gaskets. The air supply duct 9 is installed on the lower air inlet hood 7 and is fixedly connected to the top wall of the lower air inlet hood 7 by means of bolts. The blower 10 is installed on the air supply duct. The upper air inlet hood 8 is connected to the upper air inlet hood 9. The blower 10 is fixedly connected to the air inlet hood 9 by means of bolts, etc. The lower air inlet hood 7 is used to guide hot air into the hot air channel 21 of the lower drying layer 3. The hot air flow direction in the hot air channel 21 is perpendicular to the flow direction in the grain channel 22 for cross-flow drying. The blower 10 draws hot air from the lower air inlet hood 7 and supplies it into the corner box 4. It is sent into the upper drying layer 1 from the bottom of the corner box 4 and the jet vent 6 to perform mixed flow drying on the grain in the upper drying layer 1.
[0043] The dehumidification assembly is located at the lower drying layer 3, opposite to the upper air inlet hood 8. There are two sets of dehumidification assemblies. The dehumidification assembly includes a rear air outlet hood 23, a dehumidification fan 24, an air outlet duct 25, and a support frame 26. The rear air outlet hood 23 is located at the lower drying layer 3, opposite to the upper air inlet hood 8, and is fixedly connected to the outer wall of the lower drying layer 3 by bolts or other means. The dehumidification fan 24 is mounted on the rear air outlet hood 23 and is fixedly connected to the rear air outlet hood 23 by bolts or other means. The air outlet duct 25 is mounted on the dehumidification fan 24 and is fixedly connected to the dehumidification fan 24 by bolts or other means. The support frame 26 is mounted on the dehumidification fan 24 and is fixedly connected to the dehumidification fan 24 by bolts or other means. The dehumidification fan 24 is used to extract the hot air containing moisture from the hot air channel 21.
[0044] The easing layer 2 is equipped with a central guide plate and side guide plates 12. The central guide plate includes a triangular guide tube 13, a protective plate 14, an inner connecting plate 15, a pressure rod 16, and a pressure plate 17. The protective plate 14 is located at the top of the triangular guide tube 13, and the inner connecting plate 15 is located at both ends of the triangular guide tube 13 and connected to the inner wall of the easing layer 2. The inner connecting plate 15 is fixedly connected to the inner wall of the easing layer 2 by means of bolts, etc. The two ends of the triangular guide tube 13 are snapped onto the inner connecting plate 15. The pressure rod 16 is inserted into the inner wall of the easing layer 2 and is fixedly connected to the inner wall of the easing layer 2 by means of bolts, etc. The pressure rod 16 is equipped with... There is a metal plate for connection. The pressure plate 17 is set on the pressure rod 16 and is clamped on the guard plate 14. The pressure plate 17 is fixedly connected to the metal plate on the pressure rod 16 by means of bolts or the like. The pressure plate 17 is clamped to the guard plate 14 by a groove that matches the shape of the guard plate 14, thus restricting the position of the guard plate 14. The side guide plate 12 is provided with a side connecting plate 18 that connects to the inner wall of the tempering layer 2. The side connecting plate 18 is fixedly connected to the side guide plate 12 and the inner wall of the tempering layer 2 by means of bolts or the like. The triangular guide tube 13 and the side guide plate 12 are set above the hot air channel 21 to guide the grain into the grain channel 22.
[0045] The air control assembly is installed on the air inlet hood. The air control assembly includes an air control pipe 27 and a cold air control mechanism installed on the lower air inlet hood 7, and a hot air control mechanism installed on the air control pipe 27. The air control pipe 27 is fixedly connected to the lower air inlet hood 7 by means of bolts or other means.
[0046] The hot air control mechanism includes a rotating blade 28, a lever 29, and a hot air master lever 30. The rotating blade 28 is mounted on the air control pipe 27 and is rotatably connected to the air control pipe 27 with a certain damping. The lever 29 is mounted on the rotating blade 28 and is threadedly connected to the rotating blade 28. The hot air master lever 30 is mounted on the lever 29 and is rotatably connected to the lever 29.
[0047] The cold air control mechanism includes a cold air inlet 31, a rotating baffle 32, an alignment port 33, and a cold air master lever 34. The cold air inlet 31 is located on the lower air inlet hood 7 and is arranged in a circular pattern. The rotating baffle 32 is located at the cold air inlet 31 and is rotatably connected to the cold air inlet 31 via a rotating shaft. The alignment port 33 is located on the rotating baffle 32 and is also arranged in a circular pattern. The cold air master lever 34 is located on the rotating baffle 32 and is rotatably connected to the rotating baffle 32. Moving the hot air master lever 30 causes the rotating blades 28 to rotate, controlling the hot air intake. Moving the cold air master lever 34 adjusts the alignment area of the cold air inlet 31 and the alignment port 33, controlling the cold air intake.
[0048] Working principle: When in use, hot air is introduced into the air control pipe 27, and the hot air master lever 30 is turned to make the rotating blade 28 rotate, thereby controlling the hot air intake. The cold air master lever 34 is turned to adjust the alignment area of the cold air inlet 31 and the alignment port 33, thereby controlling the cold air intake and adjusting the hot air temperature. The lower air inlet hood 7 guides the hot air into the lower drying layer 3. The blower 10 draws the hot air from the lower air inlet hood 7 and supplies it into the corner box 4. The hot air is then sent into the upper drying layer 1 from the bottom of the corner box 4 and the jet nozzle 6. The dehumidifying fan 24 extracts the hot air containing moisture from the hot air channel 21.
[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A batch circulating dryer with a double drying layer, characterized in that, include: A drying oven, comprising an upper drying layer, a tempering layer and a lower drying layer from top to bottom, wherein an angular box is provided in the upper drying layer, and a leak-proof groove is provided on the top of the angular box, and an air jet is provided in the leak-proof groove; An air inlet assembly includes a lower air inlet hood disposed on the lower drying layer, an upper air inlet hood disposed on the upper drying layer, an air supply pipe disposed on the lower air inlet hood, and a blower disposed on the air supply pipe and connected to the upper air inlet hood. The lower air inlet hood is used to introduce hot air into the lower drying layer, and the blower draws hot air from the lower air inlet hood and supplies it into the corner box, which then sends it into the upper drying layer from the bottom of the corner box and the air jet. A dehumidification assembly is disposed at the lower drying layer and on the opposite side of the upper air inlet hood, and the dehumidification assembly is used to extract moisture from the drying chamber; An air control component is disposed on the air inlet hood and is used to control the intake volume of hot and cold air.
2. The batch circulating dryer with a double drying layer according to claim 1, characterized in that: The upper drying layer is provided with staggered support rods.
3. A batch circulating dryer with a double drying layer according to claim 1, characterized in that: The thaw layer is provided with a middle guide plate and side guide plates; The intermediate guide plate includes a triangular guide tube, a protective plate disposed on the top of the triangular guide tube, an inner connecting plate disposed at both ends of the triangular guide tube and connected to the inner wall of the quenching layer, a pressure rod inserted into the inner wall of the quenching layer, and a pressure plate disposed on the pressure rod and clamped on the protective plate. The side guide plate is provided with a side connecting plate that is connected to the inner wall of the thaw layer.
4. A batch circulating dryer with a double drying layer according to claim 3, characterized in that: The lower drying layer is provided with a mesh partition, which is connected by a bracket to divide the lower drying layer into a hot air channel and a grain channel. The triangular guide pipe and the side guide plate are arranged above the hot air channel to guide the grain into the grain channel.
5. A batch circulating dryer with a double drying layer according to claim 4, characterized in that: The dehumidification assembly includes a rear air outlet hood located on the lower drying layer and opposite to the upper air inlet hood, a dehumidification fan mounted on the rear air outlet hood, an air outlet pipe mounted on the dehumidification fan, and a support frame.
6. A batch circulating dryer with a double drying layer according to claim 5, characterized in that: The dehumidification fan is used to extract the humid hot air from the hot air duct.
7. A batch circulating dryer with a double drying layer according to claim 6, characterized in that: The air control assembly includes an air control duct and a cold air control mechanism disposed on the lower air inlet hood, and a hot air control mechanism disposed on the air control duct.
8. A batch circulating dryer with a double drying layer according to claim 7, characterized in that: The hot air control mechanism includes rotating blades mounted on the air control duct, levers mounted on the rotating blades, and a main hot air lever mounted on the levers.
9. A batch circulating dryer with a double drying layer according to claim 8, characterized in that: The cold air control mechanism includes a cold air inlet on the lower air inlet hood, a rotating baffle at the cold air inlet, an alignment opening on the rotating baffle, and a cold air master lever on the rotating baffle.
10. A batch circulating dryer with a double drying layer according to claim 9, characterized in that: Move the hot air master lever to rotate the rotating blades and control the hot air intake. Move the cold air master lever to adjust the alignment area of the cold air inlet and the alignment port and control the cold air intake.