Uniform material distribution device for a dryer
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 安徽金谷机械科技有限公司
- Filing Date
- 2025-08-06
- Publication Date
- 2026-06-23
AI Technical Summary
Uneven grain feeding in existing dryers causes grain to accumulate in some areas, affecting the drying effect.
It adopts a combination structure of conical material bin, fixed cylinder and conveying screw, combined with the opening and closing mechanism of sliding groove and arc slider. Uniform material distribution is achieved by controlling the opening and closing of through hole, and the feeding amount and speed are adjusted by drive motor and electric telescopic rod.
This achieves uniform distribution of grain in the dryer, avoids accumulation, and improves drying efficiency.
Smart Images

Figure CN224398265U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dryer technology, and in particular to a dryer uniform material distribution device. Background Technology
[0002] After harvesting, grains need to be dried for preservation and transportation.
[0003] Currently, grain drying is usually done using a dryer. Generally, grain is poured directly from a grain truck onto a belt conveyor, which then transports the grain to be dried into the dryer. However, since the grain truck can only pour grain one truck at a time, and the pouring speed varies depending on the amount of grain on the truck and the different operations of the truck, the amount of grain on the conveyor is uneven. This makes it difficult to ensure uniform feeding into the dryer, and it can easily lead to problems such as grain piling up in some places, making it difficult to dry. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a uniform material distribution device for a dryer.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A uniform material distribution device for a dryer is provided, which is applied to a dryer and includes a conical material bin. A material cover is fixedly installed at the top of the conical material bin. Three dryers are fixedly installed outside the conical material bin. A vertically installed fixed cylinder is fixedly connected to the center of the material cover. The top of the fixed cylinder has three through holes. Each through hole is connected to a downwardly inclined material distribution pipe. A material conveying screw is rotatably connected inside the fixed cylinder. The inner wall of the fixed cylinder is provided with three sets of opening and closing mechanisms including sliding grooves and arc-shaped sliders.
[0007] The top inner wall of the fixed cylinder has three sliding grooves corresponding to three through holes, and an arc-shaped slider is slidably connected in the sliding grooves through a vertical sliding groove.
[0008] Preferably, the top of the material cover is provided with a feed inlet, which is connected to an external grain conveyor.
[0009] Preferably, the dryer has a conical opening at the top, and the bottom outlets of the three fabric tubes correspond to the three conical openings respectively.
[0010] Preferably, the fixed cylinder sidewall inside the conical material silo has several staggered rectangular openings, with the bottom of the rectangular openings being flush with the bottom of the inner wall of the conical material silo.
[0011] Preferably, the top and bottom of the conveying screw are rotatably connected to the top and bottom of the fixed cylinder, respectively, and a drive motor is fixedly installed at the top of the fixed cylinder, with the output shaft of the drive motor fixedly connected to the top of the conveying screw.
[0012] Preferably, the height of the sliding groove is greater than the height of the arc-shaped slider, and the diameter of the through hole is smaller than the height of the arc-shaped slider.
[0013] Preferably, the bottom of the sliding groove is provided with a sloping bottom, and the bottom ends of the telescopic rods of the electric telescopic rods are fixedly connected to both sides of the top of the arc-shaped slider. The bottom ends of the fixed ends of the electric telescopic rods are fixedly installed on the top of the fixed cylinder.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This invention features a fixed cylinder and a conveying screw. The fixed cylinder, through the conveying screw, lifts the grain from the conical material bin to the top of the fixed cylinder, where it flows into three dryers via three through holes and three distribution pipes. Compared to the traditional method of directly dumping grain from grain trucks onto a conveyor and transporting it into the dryers, this method effectively improves the uniformity of material distribution and prevents uneven distribution caused by differences in the unloading speed of grain trucks and the intervals between unloading from one truck to another. It also reduces the problem of insufficient drying effect caused by grain accumulation in the dryers.
[0016] This utility model features an opening and closing mechanism that works in conjunction with three feeding tubes. By controlling the opening and closing of the three through holes, the feed amount and feed speed of each dryer can be easily controlled, thus effectively regulating the operation of the dryers. The arc-shaped slider is used to close the through holes. When one or two dryers are not feeding or the feed speed is being adjusted, the arc-shaped slider can be used to close or partially close the through holes to stop feeding or reduce the feed. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of a uniform material distribution device for a dryer proposed in this utility model;
[0018] Figure 2 This is a schematic diagram of the conveying spiral structure of a uniform material distribution device for a dryer proposed in this utility model;
[0019] Figure 3 This is a schematic diagram of the fixed cylinder structure of a uniform material distribution device for a dryer proposed in this utility model;
[0020] Figure 4 This is a schematic diagram of the sliding groove structure of a uniform material distribution device for a dryer proposed in this utility model;
[0021] Figure 5This is a schematic diagram of the opening and closing mechanism of a uniform material distribution device for a dryer proposed in this utility model.
[0022] In the diagram: 1. Material cover; 2. Conical material hopper; 3. Feed inlet; 4. Dryer; 5. Conical opening; 6. Fixed cylinder; 7. Rectangular opening; 8. Through hole; 9. Material distribution pipe; 10. Conveying screw; 11. Drive motor; 12. Opening and closing mechanism; 13. Sliding groove; 14. Sloping bottom; 15. Vertical sliding groove; 16. Arc-shaped slider; 17. Electric telescopic rod. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Reference Figure 1-5 A uniform material distribution device for a dryer is applied to a dryer 4. It includes a conical material bin 2, a material cover 1 fixedly installed at the top of the conical material bin 2, three dryers 4 fixedly installed outside the conical material bin 2, a vertically arranged fixed cylinder 6 fixedly connected to the center of the material cover 1, three through holes 8 opened at the top of the fixed cylinder 6, each through hole 8 being connected to an inclined downward material distribution pipe 9, a material conveying screw 10 rotatably connected inside the fixed cylinder 6, and three sets of opening and closing mechanisms 12 including sliding grooves 13 and arc-shaped sliders 16 provided on the inner wall of the fixed cylinder 6.
[0025] The top inner wall of the fixed cylinder 6 has three sliding grooves 13 corresponding to the three through holes 8. An arc-shaped slider 16 is slidably connected to the sliding grooves 13 via a vertical sliding groove 15. The three dryers 4 can operate simultaneously, or batch feeding or stopping feeding can be achieved through the adjustment of the opening and closing mechanism 12. The fixed cylinder 6 uses a conveying screw 10 to lift the grain from the conical material bin 2 to the top of the fixed cylinder 6, which then flows into the three dryers 4 through the three through holes 8 and three distribution pipes 9 for drying. Compared to the traditional method of directly dumping grain transported from grain trucks onto a conveyor and conveying it into the dryers 4, this method effectively improves the uniformity of material distribution, preventing uneven distribution caused by differences in the unloading speed of grain trucks and the intervals between unloading. It also reduces the problem of insufficient drying effect due to grain accumulation in the dryers 4. The opening and closing mechanism 12 works in conjunction with the three distribution pipes 9. By controlling the opening and closing of the three through holes 8, the feeding amount and feeding speed of each dryer 4 can be easily controlled, allowing for effective adjustment of the dryer 4's operation.
[0026] As a technical optimization of this utility model, the top of the material cover 1 is provided with a feed inlet 3, which is connected to an external grain conveyor. The grain conveyed by the external grain conveyor flows into the conical material bin 2 through the feed inlet 3.
[0027] As a technical optimization of this utility model, the dryer 4 is provided with a conical inlet 5 at the top, and the bottom outlets of the three feeding pipes 9 correspond to the three conical inlets 5 respectively. The grain flows into the dryer 4 through the feeding pipes 9 and the conical inlets 5 for drying.
[0028] As a technical optimization of this utility model, the side wall of the fixed cylinder 6 inside the conical material bin 2 is provided with several staggered rectangular openings 7, and the bottom of the rectangular openings 7 is flush with the bottom of the inner wall of the conical material bin 2. The rectangular openings 7 facilitate the flow of grain from inside the conical material bin 2 into the fixed cylinder 6 for lifting. At the same time, due to the conical structure of the conical material bin 2 and the continuous replenishment of grain by the feed inlet 3, the grain can naturally flow into the rectangular openings 7 under the action of gravity.
[0029] As a technical optimization of this utility model, the top and bottom of the conveying screw 10 are rotatably connected to the top and bottom of the fixed cylinder 6, respectively. A drive motor 11 is fixedly installed at the top of the fixed cylinder 6, and the output shaft of the drive motor 11 is fixedly connected to the top of the conveying screw 10. The drive motor 11 drives the conveying screw 10 to rotate, thereby lifting the grain in the fixed cylinder 6. The drive motor 11 has a stable rotation speed, which makes the grain lifting speed uniform and facilitates uniform material distribution.
[0030] As a technical optimization of this utility model, the height of the sliding groove 13 is greater than the height of the arc-shaped slider 16, and the diameter of the through hole 8 is smaller than the height of the arc-shaped slider 16. The arc-shaped slider 16 is used to close the through hole 8. When one or two dryers 4 are not feeding or the feeding speed is adjusted, the arc-shaped slider 16 can be used to close or partially close the through hole 8 to stop feeding or reduce feeding.
[0031] As a technical optimization of this utility model, the bottom of the sliding groove 13 is provided with a sloping bottom 14, and the bottom ends of the telescopic ends of the electric telescopic rod 17 are fixedly connected to both sides of the top of the arc-shaped slider 16. The bottom ends of the fixed ends of the electric telescopic rod 17 are fixedly installed on the top of the fixed cylinder 6. The position of the arc-shaped slider 16 is controlled by controlling the extension and retraction of the electric telescopic rod 17. When the arc-shaped slider 16 rises, the grain lifted by the conveying screw 10 will naturally flow down through the sloping bottom 14 when passing through the sliding groove 13, without blocking the sliding groove 13 and affecting the reset of the arc-shaped slider 16.
[0032] In use, the grain truck dumps the grain onto an external grain conveyor, which then transports the grain through the inlet 3 to the conical material bin 2 for storage. Once the conical material bin 2 is full, the grain is poured into the bottom of the fixed cylinder 6 through the rectangular openings 7. The drive motor 11 is started to rotate the conveying screw 10, causing the conveying screw 10 to move the grain at the bottom of the fixed cylinder 6 upwards. As the grain moves upwards, the grain in the conical material bin 2 continues to be poured into the bottom of the fixed cylinder 6 through the rectangular openings 7 due to gravity. At the same time, the external grain conveyor continues to transport grain to the inlet 3 to replenish the conical material bin 2. The grain lifted by the conveying screw 10 finally flows evenly into the three distribution pipes 9 through the three through holes 8, and finally flows evenly into the three dryers 4 through the conical openings 5 for drying.
[0033] When one or both dryers 4 are not in use or the feeding speed is adjusted, the electric telescopic rod 17 can be activated, causing the telescopic end of the electric telescopic rod 17 to retract and drive the arc-shaped slider 16 to slide upward along the vertical slide groove 15 and the sliding groove 13, and finally close or partially close the through hole 8. At this time, the grain cannot pass through the through hole 8 or the amount of grain passing through is reduced, so that the grain can be evenly conveyed to the remaining two or one dryers 4 for drying. After the arc-shaped slider 16 rises, the grain lifted by the conveying screw 10 will naturally flow down through the bottom of the slope 14 when passing through the sliding groove 13, without blocking the sliding groove 13 and affecting the reset of the arc-shaped slider 16.
[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A uniform material distribution device for a dryer, applied to a dryer (4), comprising a conical material hopper (2), characterized in that: The conical material bin (2) is fixedly equipped with a material cover (1) at the top. Three dryers (4) are fixedly installed outside the conical material bin (2). A vertically installed fixed cylinder (6) is fixedly connected to the center of the material cover (1). Three through holes (8) are opened at the top of the fixed cylinder (6). Each through hole (8) is connected to a downwardly inclined material distribution pipe (9). A conveying screw (10) is rotatably connected inside the fixed cylinder (6). Three sets of opening and closing mechanisms (12) including sliding grooves (13) and arc-shaped sliders (16) are provided on the inner wall of the fixed cylinder (6). The top inner wall of the fixed cylinder (6) is provided with three sliding grooves (13) corresponding to the three through holes (8) respectively. An arc-shaped slider (16) is slidably connected in the sliding groove (13) through a vertical sliding groove (15).
2. The uniform material distribution device for a dryer according to claim 1, characterized in that: The material cover (1) is provided with a feed inlet (3) at the top, and the feed inlet (3) is connected to an external grain conveyor.
3. The uniform material distribution device for a dryer according to claim 1, characterized in that: The dryer (4) has a conical opening (5) at the top, and the bottom outlets of the three cloth pipes (9) correspond to the three conical openings (5) respectively.
4. The uniform material distribution device for a dryer according to claim 1, characterized in that: The fixed cylinder (6) inside the conical material silo (2) has several staggered rectangular openings (7) on its side wall, and the bottom of the rectangular opening (7) is flush with the bottom of the inner wall of the conical material silo (2).
5. The uniform material distribution device for a dryer according to claim 1, characterized in that: The top and bottom of the conveying screw (10) are rotatably connected to the top and bottom of the fixed cylinder (6), respectively. A drive motor (11) is fixedly installed at the top of the fixed cylinder (6), and the output shaft of the drive motor (11) is fixedly connected to the top of the conveying screw (10).
6. The uniform material distribution device for a dryer according to claim 1, characterized in that: The height of the sliding groove (13) is greater than the height of the arc-shaped slider (16), and the diameter of the through hole (8) is smaller than the height of the arc-shaped slider (16).
7. The uniform material distribution device for a dryer according to claim 1, characterized in that: The bottom of the sliding groove (13) is provided with a sloping bottom (14), and the top sides of the arc-shaped slider (16) are fixedly connected to the bottom ends of the telescopic ends of the electric telescopic rod (17), and the bottom ends of the fixed ends of the electric telescopic rod (17) are fixedly installed on the top of the fixed cylinder (6).