Multi-stage air guide type grain drying cabin

Abstract

The utility model discloses a multistage air guide formula grain drying cabin relates to grain drying technical field, and the utility model discloses a cabin body is equipped with drying mechanism in the middle part of cabin body for the quick conveying air drying of grain, and drying mechanism includes: conveying component includes a plurality of conveyors that set up in the middle part of cabin body, and a plurality of conveyors are equal interval and staggered distribution, and one side of a plurality of conveyors is fixedly installed with seal plate, and the staggered conveyor belt of a plurality of groups equal interval and reverse rotation of the application makes grain from top to bottom gradually stable falling when constantly turning, avoids the accumulation, and simultaneously, the seal plate is staggered and is attached to the bulkhead, and the forced hot air presents "S" shape curve and rises, and the contact path and time of hot air and grain are prolonged, make the hot air fully penetrate every layer of grain layer, cooperate the hot air circulation that dehumidifier and conveying pipe form, and recycle the waste heat and supplement heat, improve drying uniformity and efficiency, and reduce energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of grain drying technology, specifically a multi-stage air-guided grain drying chamber. Background Technology

[0002] In the field of grain processing and storage, grain drying is a key step in ensuring grain quality and preventing mold growth. Especially during the harvest season when facing rainy weather or high humidity, efficient drying equipment can directly reduce grain loss.

[0003] Currently, most common grain drying equipment adopts a tower or box structure, which usually has multiple conveying devices to transport grain and uses hot air for drying. However, the flow path of hot air in the drying chamber of traditional equipment is mostly linear upward, resulting in short contact time with the grain and insufficient heat exchange, leading to low thermal energy utilization and high energy consumption. Secondly, there is often a lack of effective sealing measures at the feed and discharge ports of the equipment, causing a large amount of heat energy to be lost as the material enters and exits. This not only increases energy consumption but also affects the stability of the thermal environment inside the chamber. Furthermore, the high humidity and low temperature exhaust gas generated during the drying process is usually directly discharged, and the waste heat it carries is not recovered and utilized, resulting in energy waste.

[0004] Therefore, this utility model provides a multi-stage air-guided grain drying chamber. Utility Model Content

[0005] To address the issues of heat loss due to the short, straight flow path of hot air and insufficient sealing of the inlet and outlet in traditional grain drying equipment, as well as the direct discharge of waste heat from high-humidity exhaust gases, this invention aims to provide a multi-stage air-guided grain drying chamber.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage air-guided grain drying chamber, comprising a chamber body, wherein a drying mechanism is provided in the middle of the chamber body for rapidly conveying and drying grain, the drying mechanism comprising: The conveying assembly includes multiple conveyor belts located in the middle of the cabin. The multiple conveyor belts are evenly spaced and staggered. A sealing plate is fixedly installed on one side of each of the multiple conveyor belts, and the sealing plates on the sides of adjacent conveyor belts are staggered. Two symmetrically distributed drying fans are rotatably installed at the bottom of the cabin. A feeding pipe is fixedly installed on one side of the top of the cabin, and a discharging pipe is fixedly installed on one side of the bottom of the cabin. The loading and unloading assembly is located on one side of the loading and unloading pipes and is used to uniformly transport grain.

[0007] Preferably, the loading and unloading assembly includes a loading frame rotatably mounted at the lower part of the loading pipe, a unloading frame rotatably mounted at the upper part of the unloading pipe, and a driving assembly provided on one side of the unloading frame.

[0008] Preferably, the conveying assembly further includes a conveying pipe fixedly installed on one side of the cabin, and a dehumidifier is fixedly installed in the middle of one side of the cabin. The conveying pipe is connected to the input and output ends of the dehumidifier via flanges.

[0009] Preferably, the drive assembly includes a drive motor fixedly installed on one side of the lower part of the cabin, one end of the unloading rack is fixedly installed on the drive end of the drive motor, and the unloading rack and the loading rack are connected by a transmission belt.

[0010] Preferably, a baffle is fixedly installed on the lower part of the cabin, and a plurality of evenly distributed ventilation holes are opened in the middle of the baffle.

[0011] Preferably, a frame is fixedly installed on the lower part of the cabin, and the four corners of the lower part of the frame are fixed to the fixed base by bolts.

[0012] Beneficial effects This invention provides a multi-stage air-guided grain drying chamber. Compared with the prior art, it has the following advantages: 1. This application uses multiple sets of staggered conveyor belts with equal spacing and opposite rotation to make the grain continuously turn over as it falls smoothly from top to bottom, avoiding accumulation. At the same time, the sealing plates are staggered and attached to the cabin wall, forcing the hot air to rise in an "S" shaped curve, extending the contact path and time between the hot air and the grain, allowing the hot air to fully penetrate each layer of grain. Combined with the hot air circulation formed by the dehumidifier and conveyor pipe, waste heat is recovered and supplemented, which not only improves the uniformity and efficiency of drying, but also reduces energy consumption.

[0013] 2. This application uses a transmission belt to synchronously drive the loading and unloading racks to rotate. The loading rack evenly spreads the grain from the pipe to the top conveyor belt to prevent local overload, while the unloading rack assists the grain to smoothly enter the unloading pipe from the bottom. The rotating frame can also block hot air from escaping from the unloading and unloading pipes, reducing heat loss and thus ensuring continuous and stable operation of the equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0016] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0017] Figure 4 This is a schematic diagram of the conveyor belt structure of this utility model.

[0018] Figure 5 This is another cross-sectional structural diagram of the present invention.

[0019] In the diagram: 1. Cabin; 2. Drying mechanism; 21. Conveying assembly; 211. Conveyor belt; 212. Sealing plate; 213. Conveying pipe; 214. Dehumidifier; 215. Drying fan; 2151. Baffle; 216. Frame; 217. Discharge pipe; 218. Loading pipe; 22. Loading / unloading assembly; 221. Drive motor; 222. Discharge rack; 223. Loading rack. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-5 This utility model provides a technical solution: a multi-stage air-guided grain drying chamber, including a chamber body 1, which adopts a double-layer insulated steel plate structure, with the inner layer being 304 stainless steel and the outer layer being galvanized steel plate, and 50mm thick aluminum silicate insulation cotton filling between the two layers to effectively reduce heat loss. A drying mechanism 2 is provided in the middle of the chamber body 1 for rapid conveying and air drying of grain. The drying mechanism 2 includes: The conveying assembly 21 includes multiple conveyor belts 211 disposed in the middle of the cabin 1. The multiple conveyor belts 211 are evenly spaced and staggered. The vertical distance between adjacent conveyor belts 211 is 300-400 mm, and the horizontal stagger distance is 150-200 mm. The conveyor belts 211 between two adjacent conveyor belts rotate in opposite directions, thereby ensuring that the grain can fall smoothly and fully contact the hot air. A sealing plate 212 is fixedly installed on one side of each of the multiple conveyor belts 211. The sealing plate 212 is made of heat-resistant rubber. The material is tightly fitted to the inner wall of the chamber 1, and the sealing plates 212 on the side adjacent to the conveyor belt 211 are staggered to guide the hot air, so that the hot air moves upward in an S-shaped curve, fully contacting the grain on the conveyor belt 211 to dry it. Two symmetrically distributed drying fans 215 are rotatably installed at the lower part of the chamber 1. A feeding pipe 218 is fixedly installed on one side of the top of the chamber 1, and a discharging pipe 217 is fixedly installed on one side of the lower part of the chamber 1. The discharging pipe 217 is inclined at an angle of 75° to ensure that the grain is discharged smoothly. The loading and unloading assembly 22 is located on one side of the loading pipe 218 and the unloading pipe 217, and is used to uniformly transport grain.

[0022] The loading and unloading assembly 22 includes a loading frame 223 rotatably mounted on the lower part of the loading pipe 218 and a unloading frame 222 rotatably mounted on the upper part of the unloading pipe 217. A drive assembly is provided on one side of the unloading frame 222. By rotating the loading frame 223 and the unloading frame 222, the grain can be loaded and discharged evenly, while preventing hot air from being discharged through the loading pipe 218 or the unloading pipe 217.

[0023] The conveying assembly 21 also includes a conveying pipe 213 fixedly installed on one side of the cabin 1. A dehumidifier 214 is fixedly installed in the middle of one side of the cabin 1. The inlet and outlet ends of the conveying pipe 213 and the dehumidifier 214 are connected by flanges. The dehumidifier 214 can dry the discharged humid hot air, turning it into dry hot air that re-enters the lower part of the cabin 1. The grain is then dried again by the heating and blowing of the drying fan 215, thereby recovering waste heat and reducing energy consumption. The dehumidifier 214 also has a one-way check function, which ensures that the conveying pipe 213 can only convey humid air from the top to the bottom and cannot reverse into the conveying pipe 213 under the action of the drying fan 215.

[0024] The drive assembly includes a drive motor 221 fixedly installed on one side of the lower part of the cabin 1. One end of the unloading rack 222 is fixedly installed on the drive end of the drive motor 221. The unloading rack 222 and the loading rack 223 are connected by a transmission belt. The drive motor 221 is model IM35ET020, which has high torque output characteristics. Under its drive, it can drive the lower unloading rack 222 to rotate, so that under the transmission of its transmission belt, the upper loading rack 223 rotates synchronously.

[0025] A baffle 2151 is fixedly installed on the lower part of the cabin 1. Multiple evenly distributed ventilation holes are opened in the middle of the baffle 2151. The baffle 2151 can isolate part of the space in the lower part of the cabin 1, so that when the preheated hot air is blown into the lower cavity by the conveying pipe 213, it can be blown out through the ventilation holes after being heated by the drying fan 215.

[0026] A frame 216 is fixedly installed on the lower part of the cabin 1. The four lower corners of the frame 216 are fixed to a fixed base with bolts. The base is fixed in the factory area or processing environment. The cabin 1 is then fixed to the base with bolts to ensure a secure installation and prevent the equipment from shifting due to mechanical vibration during operation. Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0027] During operation, the grain to be dried enters the chamber 1 through the feeding pipe 218. Driven by the drive motor 221, the feeding rack 223 rotates at a constant speed, evenly and continuously scattering the grain onto the uppermost conveyor belt 211, thus avoiding grain accumulation. The grain is transported from top to bottom on the multi-layer conveyor belts 211. When the grain falls from the end of the upper conveyor belt 211, it will naturally fall to the beginning of the next layer of conveyor belt 211 directly below it and in the opposite direction of rotation, ensuring that the grain can fall smoothly and steadily step by step, and continuously tumble and mix during the falling process. At the same time, hot air is generated from the bottom of the chamber 1. Under the guidance of the sealing plate 212, the hot air cannot rise in a straight line. Instead, it is forced to move upward in an "S"-shaped curve along the channel formed by the staggered conveyor belts 211. This prolongs the contact path and time between the hot air and the grain in the chamber. The hot air must repeatedly penetrate the grain layer on each conveyor belt 211 laterally to fully and efficiently exchange heat with the grain, remove moisture, and achieve the drying operation. Moist, hot air carrying a large amount of moisture and with a reduced temperature rises to the top of the chamber 1. The dehumidifier 214 extracts this moist air from the top through the conveyor pipe 213, dehumidifies and heats it to restore it to dry hot air. The dry hot air is then sent back to the bottom of the chamber 1, accelerated and reheated by the drying fan 215, and then blown evenly upwards through the ventilation holes on the baffle 2151 to participate in the drying process again. After being dried in multiple layers, the grain finally falls to the bottom conveyor belt 211 and is transported to the discharge pipe 217. The discharge pipe 217, with an inclination angle of 75°, ensures that the grain can be discharged smoothly and quickly by gravity.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] 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 multi-stage air-guided grain drying chamber, comprising a chamber body (1), characterized in that: The middle part of the cabin (1) is provided with a drying mechanism (2) for rapidly conveying and drying grain. The drying mechanism (2) includes: The conveying assembly (21) includes multiple conveyor belts (211) arranged in the middle of the chamber (1). The multiple conveyor belts (211) are evenly spaced and staggered. A sealing plate (212) is fixedly installed on one side of each of the multiple conveyor belts (211), and the sealing plates (212) on the side of adjacent conveyor belts (211) are staggered. Two symmetrically distributed drying fans (215) are rotatably installed on the lower part of the chamber (1). A feeding pipe (218) is fixedly installed on one side of the top of the chamber (1), and a discharging pipe (217) is fixedly installed on one side of the lower part of the chamber (1). The loading and unloading assembly (22) is located on one side of the loading pipe (218) and the unloading pipe (217) and is used to uniformly transport grain.

2. The multi-stage air-guided grain drying chamber according to claim 1, characterized in that: The loading and unloading assembly (22) includes a loading rack (223) rotatably installed at the lower part of the loading pipe (218), a unloading rack (222) rotatably installed at the upper part of the unloading pipe (217), and a drive assembly provided on one side of the unloading rack (222).

3. The multi-stage air-guided grain drying chamber according to claim 1, characterized in that: The conveying assembly (21) also includes a conveying pipe (213) fixedly installed on one side of the cabin (1), and a dehumidifier (214) fixedly installed in the middle of one side of the cabin (1). The conveying pipe (213) and the input and output ends of the dehumidifier (214) are connected by flanges.

4. The multi-stage air-guided grain drying chamber according to claim 2, characterized in that: The drive assembly includes a drive motor (221) fixedly installed on one side of the lower part of the cabin (1), and one end of the unloading rack (222) fixedly installed on the drive end of the drive motor (221). The unloading rack (222) and the loading rack (223) are connected by a transmission belt.

5. A multi-stage air-guided grain drying chamber according to claim 1, characterized in that: A baffle (2151) is fixedly installed on the lower part of the cabin (1), and a number of evenly distributed ventilation holes are opened in the middle of the baffle (2151).

6. The multi-stage air-guided grain drying chamber according to claim 1, characterized in that: The lower part of the cabin (1) is fixedly installed with a frame (216), and the four corners of the lower part of the frame (216) are fixed to the fixed base by bolts.

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