Mobile grain rapid dehumidifier

Abstract

The invention relates to the technical field of agricultural machinery, in particular to a movable grain rapid dehumidifier which comprises a movable frame and a drying box, the movable frame is composed of a frame base and wheels below the frame base, the dehumidifier is installed on the frame base, and a grain conveying device is connected with a grain inlet in the top of the drying box. And the ventilating pipeline is used for lifting to-be-dried grains into the drying box and is connected with the hot air bin. The equipment can be flexibly moved to the field edge to directly dry grains, the vertical drying box and the hot air circulating system are adopted, the hot air utilization rate is increased, energy consumption is reduced, it is ensured that the grains are evenly heated in the drying process through the stirring device, local overheating is avoided, and the operation process is simplified through the automatic design of the grain unloading device and the opening and closing mechanism; the environment pollution is reduced through the closed design, the operation cost is reduced due to the adaptability of various fuels, the device is suitable for farms of different scales and various grain types, and the diversified drying requirements are met.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and particularly relates to a mobile rapid grain dehumidifier. Background Art

[0002] After grains are harvested, they usually need to be dried to extend their storage time. Especially in continuous rainy weather, in traditional methods, the drying of grains is usually natural sun-drying, which is greatly affected by the weather. When encountering continuous rainy days, the grains cannot be dried in time. In the Henan region of China, in recent years, due to the erratic weather, continuous rainy weather may be encountered during grain harvesting, which will result in a very high moisture content of the harvested grains, and the grains harvested in continuous rainy weather cannot be dried by traditional drying methods. Therefore, developing a grain dryer that can rapidly dehumidify grains after harvesting is an issue that we need to focus on. In the drying towers currently used for grain drying, most of the angled boxes are integrally structured and fixedly installed inside the drying tower, and only a gap space remains between the bottom of the angled box and the flowing grain layer. Therefore, the hot air can only be dispersed through the bottom of the angled box and incorporated into the grain layer. The contact area between the hot air and the grain layer is relatively small, resulting in relatively less hot air flowing into the grain layer. A large amount of hot air is discharged before having time to exchange heat with the grains, and the utilization rate of the heat in the hot air is relatively low, resulting in poor drying efficiency and high energy consumption. At the same time, drying towers generally have large sizes, are not convenient to move, and have a slow drying speed, which is not conducive to the rapid dehumidification requirements of high-moisture grains.

[0003] Therefore, in order to be more convenient, mobile grain dryers have emerged. In order to facilitate movement, most mobile grain dryers are arranged on a trailer frame and are driven by a trailer to move to the production site; the outer cylinder, which is the main drying body, is mostly designed with a mesh structure, and its top is also an open structure to ensure that the input high-temperature hot air can be quickly dispersed. However, such a drying device is easily interfered by the external environment during production and storage. External rain, dust, and birds are all likely to contaminate the outer cylinder, and it is troublesome to maintain later and cannot be stored outdoors. At the same time, during production, dust and impurities in the grains will also float out to the outside, affecting the production environment. Existing horizontal dryers still have certain defects during use. During the process of drying agricultural crops, since the harvested agricultural crops will be mixed with dust, impurities, and the epidermis or shell of the agricultural crops, a large amount of dust will often be generated during the drying process, which is likely to form dust particles in the air. Secondly, the dust on the agricultural crops falls on the drying drum. On the one hand, it will cause a large amount of dirt to appear on the surface of the drying drum, and on the other hand, it will also reduce the cooling efficiency of the drying drum, and there is a risk that the grains inside it will be overheated and charred. Summary of the Invention

[0004] The present invention provides a mobile rapid grain dehumidifier, aiming to solve the problems of low efficiency, high energy consumption, and environmental pollution in traditional drying methods, and at the same time overcome the disadvantage of inconvenient movement of fixed heat pump dryers, so as to provide a new technical solution for grain drying. Through the innovative design and technical integration of the main components such as the overall machine structure design, heating system, air supply and exhaust system, automatic feeding and discharging system, mobile chassis, and grain unloading device, this rapid dehumidifier adopts a vertical structure, and the heat source can be supplied by fuels such as coal, natural gas, and fuel oil. Combined with the mobile design, it can directly carry out rapid grain dehumidification in the fields, improving the dehumidification efficiency, reducing energy consumption, being environmentally friendly, suitable for farms of various scales, and at the same time avoiding the risk of grain being scorched due to overheating, and being suitable for farms in various situations.

[0005] The solution adopted by the present invention to solve its technical problems is: a mobile rapid grain dehumidifier, including a mobile vehicle frame and a drying box. The mobile vehicle frame is composed of a frame base and wheels below the frame base, and the dehumidifier is installed on the frame base. It also includes a hot air chamber, a ventilation duct, a fan, a gas circulation duct, and a grain conveying device. The grain conveying device is connected to the grain inlet at the top of the drying box and is used to lift and send the grain to be dried into the drying box. The ventilation duct is connected to the hot air chamber, and a fan is installed on the frame base. The input end and output end of the fan are respectively connected to the outlet of the ventilation duct and the inlet of the gas circulation duct, and the gas circulation duct is connected to the drying box; The drying box is composed of a vertical grain bin. A ventilation bin plate is horizontally arranged in the grain bin. The ventilation bin plate divides the inside of the grain bin into an upper bin and a lower bin up and down. The upper bin is used to store grain, and a stirring device is arranged in the upper bin. An unloading port is opened on the ventilation bin plate. An unloading device is arranged in the lower bin. The unloading device corresponds to the unloading port in position, and a baffle is arranged between the two. Air inlets are arranged in both the upper bin and the lower bin. The gas circulation duct has two outlets, and the two outlets are respectively connected to the air inlets of the upper bin and the lower bin. An air path adjustment mechanism is arranged in the gas circulation duct. The air path adjustment mechanism is used to adjust the air direction of the gas circulation duct and control the hot air to enter the upper bin and / or the lower bin of the drying box.

[0006] Furthermore, the air path adjustment mechanism includes a rotating shaft rotatably sleeved in the gas circulation duct. A ventilation baffle is installed on the rotating shaft. An adjustment motor is installed outside the gas circulation duct. The adjustment motor is connected to the rotating shaft and is used to control the rotation of the rotating shaft and the ventilation baffle. The ventilation baffle is used to adjust the flow direction of the hot air in the gas circulation duct, and the hot air is controlled to enter the upper bin and / or the lower bin of the drying box by adjusting the angular position of the ventilation baffle.

[0007] Further, the grain conveying device includes a hoist housing. At the bottom on one side of the hoist housing facing away from the drying box, a grain inlet is provided, and at the top on the side facing the drying box, a grain outlet is provided, and the position of the grain outlet corresponds to the grain inlet of the drying box. Inside the hoist housing, a hoist conveyor shaft is rotatably sleeved up and down. On the two hoist conveyor shafts, a hoist belt is arranged in a matching manner. On the outer side of the hoist belt, a plurality of hoist buckets are evenly arranged. The hoist buckets are used to hold and lift the grain upward. A hoist motor is installed on the outer side of the hoist housing, and the hoist motor is connected to one of the hoist conveyor shafts to control the operation of the grain conveying device.

[0008] Further, the stirring device includes a stirring motor and a stirring shaft. The stirring motor is installed at the center position on the top of the drying box. The output end of the stirring motor is fixedly sleeved with a stirring shaft. Bearing seats are provided at both the top and the bottom of the upper bin. The stirring shaft is longitudinally rotatably sleeved inside the upper bin through the bearing seats, and stirring rods are arranged on the stirring shaft.

[0009] Further, the grain unloading device includes a auger housing penetrating through the lower bin of the drying box. At the top of the auger housing, an inlet corresponding to the grain unloading port is provided. A baffle is slidably installed between the inlet and the grain unloading port of the auger housing. Inside the auger housing, a guiding auger is rotatably sleeved. A discharging motor is installed on the frame base, and the discharging motor is in transmission connection with the guiding auger to control the guiding auger to rotate and guide the material.

[0010] Further, two sliding grooves are horizontally opened on the bottom surface of the ventilation bin plate. Two sliding blocks matching the sliding grooves are arranged on the baffle. The baffle is directionally slidably sleeved in the lower sliding grooves of the ventilation bin plate through the sliding blocks. The opening and closing of the grain unloading port are realized by the left and right movement of the baffle. An opening and closing mechanism for controlling the automatic opening and closing of the baffle is arranged in the lower bin.

[0011] Further, the opening and closing mechanism includes racks symmetrically arranged on the bottom surface of the baffle. Inside the lower bin, a transmission shaft is rotatably sleeved. A gear is fixedly sleeved on the transmission shaft, and the gear meshes with the rack. A driving motor connected to the transmission shaft and used to drive its rotation is installed outside the drying box.

[0012] Further, a grain scraping rod is fixedly sleeved at the bottom of the stirring shaft, and the grain scraping rod contacts the upper surface of the ventilation bin plate.

[0013] Advantages of the present invention: Mobility convenience: Through the design of the moving frame, the dehumidifier can be flexibly moved to the fields and directly dehumidify the grain at the harvesting site, avoiding losses and pollution during the grain transportation process and improving the operation efficiency; High-efficiency dehumidification: By adopting a drying box with a vertical structure and combining a hot air bin, a ventilation duct, a fan and a gas circulation duct, efficient recycling of hot air can be realized, the dehumidification efficiency can be improved, and the energy consumption can be reduced; Hot air recycling: Through the gas circulation pipeline and the air path adjustment mechanism, the hot air entering the upper bin and / or lower bin of the drying chamber can be flexibly controlled, realizing the multi-directional flow of hot air, improving the utilization rate of hot air and reducing heat loss; Uniform drying: The design of the stirring device enables the grains to be evenly heated during the dehumidification process, avoiding local overheating that may cause the grains to scorch and ensuring the quality of the grains; Automated operation: The automated design of the grain conveying device, the grain discharging device and the opening and closing mechanism makes the feeding and discharging processes of the grains more convenient, reducing the intensity and time of manual operation; Environmental protection and energy saving: The equipment adopts a closed design, avoiding the leakage of dust and impurities, reducing environmental pollution. At the same time, the heat source can be provided by various fuels such as coal, natural gas and fuel oil, adapting to the energy conditions in different regions and reducing the operating cost; Strong applicability: It is applicable to farms of various scales and different types of grains, and can meet diverse drying requirements. Brief Description of the Drawings

[0014] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the front sectional structural schematic diagram of the present invention; Figure 3 is one of the internal structural schematic diagrams of the drying chamber of the present invention; Figure 4 is the other internal structural schematic diagram of the drying chamber of the present invention; Figure 5 is Figure 4 the enlarged structural schematic diagram at A in Figure 6 is the structural schematic diagram of the grain discharging device of the present invention; Figure 7 is the structural schematic diagram of the ventilation pipeline and the gas circulation pipeline of the present invention; Figure 8 is one of the structural schematic diagrams of the grain conveying device of the present invention; Figure 9 is the other structural schematic diagram of the grain conveying device of the present invention.

[0015] In the figure: 1, hot air bin; 2, ventilation pipeline; 3, grain conveying device; 4, drying chamber; 5, frame; 6, fan; 7, gas circulation pipeline; 8, stirring device; 9, grain discharging device; 10, air path adjustment mechanism; 11, frame base; 12, wheel; 13, baffle; 14, opening and closing mechanism; 301, elevator housing; 302, grain outlet; 303, grain inlet; 304, elevator transmission shaft; 305, lifting belt; 306, lifting bucket; 307, lifting motor; 401, Grain bin; 402, Ventilation bin board; 403, Grain discharge opening; 404, Air inlet; 405, Grain inlet; a, Upper bin; b, Lower bin; 801, Stirring motor; 802, Stirring shaft; 803, Stirring rod; 804, Grain scraping rod; 901, Auger housing; 902, Feeding auger; 903, Pulley; 904, Discharging motor; 905, Belt; 1001, Adjusting motor; 1002, Rotating shaft; 1003, Air change baffle; 1401, Rack; 1402, Chute; 1403, Transmission shaft; 1404, Gear; 1405, Driving motor. Detailed implementation mode

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Please refer to Figure 1-9 , the present invention provides a technical solution for a mobile rapid grain dehumidifier. Through the innovative design and technical integration of the whole machine structure, heating system, air supply and exhaust system, automatic feeding and discharging system, mobile chassis, grain discharging device and other main components, the rapid dehumidifier adopts a vertical structure, and the heat source can be heated by fuels such as coal, natural gas and fuel oil. Combined with the mobile design, it can directly carry out rapid grain dehumidification in the fields, improve the dehumidification efficiency, reduce the energy consumption, and is environmentally friendly. It is suitable for farms of various scales, and at the same time avoids the risk of grain scorching due to overheating, and is suitable for farms in various situations. Embodiment

[0018] According to Figure 1 and Figure 2 shown, a mobile rapid grain dehumidifier mainly includes a mobile vehicle frame, a hot air bin 1, a ventilation duct 2, a grain conveying device 3, a drying box 4, a fan 6, a gas circulation duct 7, a stirring device 8 and a grain discharging device 9 and other structures. The mobile vehicle frame is composed of a vehicle frame base 11 and wheels 12 under the vehicle frame base 11. The main equipment of the dehumidifier is installed on the vehicle frame base 11. Through the mobile vehicle frame, the dehumidifier can be pulled to move flexibly in the fields, improving the flexibility of the dehumidifier movement and different use sites.

[0019] On the frame base 11, there are successively arranged a hot air bin 1, a ventilation duct 2, a gas circulation duct 7, a drying box 4, and a grain conveying device 3. The grain conveying device 3 is connected to the grain inlet 405 at the top of the drying box 4. The grain conveying device 3 is used to lift the grains to be dried in the field and send them into the drying box 4 for drying. The ventilation duct 2 is connected to the hot air bin 1, and the ventilation duct 2 is also connected to the gas circulation duct 7 through a fan 6. The fan 6 is supported and installed on the frame base 11 through a frame 5. The input end and the output end of the fan 6 are respectively connected to the outlet of the ventilation duct 2 and the inlet of the gas circulation duct 7. Through the fan 6, the hot air in the hot air bin 1 can be drawn into the gas circulation duct 7 through the ventilation duct 2. The gas circulation duct 7 is also connected to the drying box 4, and finally the hot air enters the drying box 4 to perform hot air drying and dehumidification on the grains inside.

[0020] As Figure 3 and Figure 4 shown, the drying box 4 is composed of a vertical dome-shaped granary 401. Inside the granary 401, a ventilation bin plate 402 is horizontally arranged. The ventilation bin plate 402 divides the inside of the granary 401 into two spaces up and down, namely the upper bin a and the lower bin b. The upper bin a is used to store grains. The hot air enters the upper bin a through the gas circulation duct 7 to dry the grains inside. A stirring device 8 for stirring the grains is also arranged in the upper bin a. A grain discharging device 9 is arranged in the lower bin b. A grain discharging port 403 is opened on the ventilation bin plate 402, and a baffle plate 13 is arranged at the grain discharging port 403. After the grains in the upper bin a are dried, the baffle plate 13 is opened, and the dried grains fall into the grain discharging device 9 and are discharged outward through the grain discharging device 9. An air vent is arranged at the top of the drying box 4.

[0021] As Figure 8 and Figure 9 shown, the grain conveying device 3 includes a hoist housing 301. On the bottom of the side of the hoist housing 301 facing away from the drying box 4, a grain inlet 303 is arranged, and on the top of the side facing the drying box 4, a grain outlet 302 is arranged. The position of the grain outlet 302 corresponds to the position of the grain inlet 405 of the drying box 4. A hoist transmission shaft 304 is rotatably sleeved at the center of the upper and lower parts inside the hoist housing 301, and hoist belts 305 are arranged in a matching manner on the upper and lower two hoist transmission shafts 304. The two hoist transmission shafts 304 are connected by the hoist belts 305 in a transmission manner, and a plurality of hoist buckets 306 are uniformly arranged on the outer side of the hoist belts 305. The hoist buckets 306 are used to hold the grains entering the hoist housing 301 through the grain inlet 303 and lift the grains upward following the transmission of the hoist belts 305. A hoist motor 307 is installed on the outer side of the hoist housing 301, and the output end of the hoist motor 307 is connected to one of the hoist transmission shafts 304 to control the operation of the grain conveying device 3.

[0022] The stirring device 8 includes a stirring motor 801 and a stirring shaft 802. The stirring motor 801 is installed at the center position on the top of the drying box 4. The output end of the stirring motor 801 is fixedly sleeved with the stirring shaft 802. Bearing seats are arranged at both the top and the bottom of the upper bin a. The stirring shaft 802 is longitudinally rotatably sleeved in the upper bin a through the bearing seats, and stirring rods 803 are arranged up and down on the stirring shaft 802.

[0023] As Figure 4 and Figure 6 shown, the grain unloading device 9 includes a auger housing 901 penetrating through the lower bin b of the drying box 4. An inlet is arranged at the top of the auger housing 901, and the inlet corresponds to the grain unloading port 403. The baffle plate 13 is slidably installed between the inlet of the auger housing 901 and the grain unloading port 403. An auger transmission shaft is rotatably sleeved in the auger housing 901. Auger blades are arranged on the auger transmission shaft. The auger blades and the auger transmission shaft are combined to form a guiding auger 902. A discharging motor 904 is fixedly installed on the vehicle frame base 11 through a motor bracket 5. Belt wheels 903 are fixedly sleeved on the output end of the discharging motor 904 and the output end of the auger transmission shaft. A belt 905 is arranged in a matching manner on the belt wheels 903. After the baffle plate 13 is opened, the dried grain in the upper bin a can enter the auger housing 901. When the discharging motor 904 is started, the guiding auger 902 is rotated through the transmission of the belt 905 to guide and convey the grain outwards.

[0024] During specific use, a mobile grain rapid dehumidifier of the present invention adopts a vertical structure. Grains are poured into the dehumidifier from the feeding port at the rear of the dehumidifier, and the grains are sent from the grain outlet 302 of the grain conveying device 3 into the upper bin a of the drying box 4 through the grain conveying device 3 for dehumidification. Heat is supplied by fuels such as coal, natural gas and fuel oil. The hot air generated by the combustion of fuels such as coal, natural gas and fuel oil enters the hot air bin 1 through the air inlet, and then enters the fan 6 device through the ventilation duct 2. The fan 6 evenly sends the hot air into the gas circulation duct 7 at a high speed. The gas circulation duct 7 guides the hot air into the drying box 4 to dry and dehumidify the grains. During the dehumidification process, the stirring device 8 continuously stirs, and the upper and lower stirring blades make the grains heat more evenly during the dehumidification process. The drying box 4 is divided into two layers. The upper layer is used for grain dehumidification, and the lower layer is provided with a grain unloading device 9. After the dehumidification is completed, the lower baffle plate 13 is opened, and the grains fall into the auger housing 901 of the grain unloading device 9. The guiding auger 902 is rotated by the drive of the discharging motor 904, and the grains are unloaded outwards by the guiding auger 902. The whole device is installed on a mobile vehicle frame and moves through the wheels 12, which is convenient for grain drying operations at different locations. This design not only improves the drying efficiency, reduces the energy consumption, but also reduces the impact on the environment, and is suitable for use on farms of various scales. Embodiment

[0025] Based on Embodiment 1, the same parts as those in Embodiment 1 will not be described in detail, and the differences are as follows: As Figure 3 and Figure 4 shown, an air inlet 404 is provided in both the upper bin a and the lower bin b. The gas circulation pipeline 7 is of a U-shaped structure, which has one inlet and two outlets. The inlet is connected to the output end of the fan 6, and the two outlets are respectively connected to the air inlets 404 of the upper bin a and the lower bin b. The hot air in the gas circulation pipeline 7 can flow into the upper bin a or the lower bin b respectively. An air path adjustment mechanism 10 is provided in the gas circulation pipeline 7. Through the air path adjustment mechanism 10, the air direction of the gas circulation pipeline 7 can be adjusted to control the hot air to only enter the upper bin a, so that the hot air directly contacts the grains in the upper bin a to dry the grains; or control the hot air to only enter the lower bin b, so that the hot air flows upward through the ventilation bin plate 402 from the bottom of the grains to dry the grains; or control the hot air to enter both the upper bin a and the lower bin b at the same time, so that the hot air directly contacts the grains or enters from the bottom of the grains, and the hot air flows in the grains to dry.

[0026] As Figure 2 and Figure 7 shown, the air path adjustment mechanism 10 includes an adjustment motor 1001, a rotating shaft 1002 and an air change baffle 1003. The rotating shaft 1002 is rotatably sleeved in the middle position of the gas circulation pipeline 7. The air change baffle 1003 is installed on the rotating shaft 1002. The adjustment motor 1001 is installed outside the gas circulation pipeline 7. The output end of the adjustment motor 1001 is connected to the rotating shaft 1002 for controlling the rotation of the rotating shaft 1002 and the air change baffle 1003. Two protruding step parts are arranged up and down at the inlet of the gas circulation pipeline 7, and the air change baffle 1003 is blocked by the step parts after rotation; when the air change baffle 1003 rotates upward and inclines, the hot air in the gas circulation pipeline 7 can only enter the lower bin b. When the air change baffle 1003 rotates downward and inclines, the hot air in the gas circulation pipeline 7 can only enter the upper bin a. When the air change baffle 1003 is in a horizontal state, the hot air can flow into both the upper bin a and the lower bin b at the same time. By adjusting the angular position of the air change baffle 1003 in the circulating gas circulation pipeline 7, it is possible to select to send the hot air into the drying box 4 from above or below, so as to realize the adjustment of the hot air drying mode of the grains. Embodiment

[0027] Based on Embodiment 1, as Figure 4 shown, two sliding grooves 1402 are horizontally opened on the bottom surface of the ventilation bin plate 402. Two sliding blocks matching the sliding grooves 1402 are arranged on the baffle plate 13. The baffle plate 13 is directionally slidably sleeved in the lower sliding grooves 1402 of the ventilation bin plate 402 through the sliding blocks. The left and right movement of the baffle plate 13 can realize the opening and closing of the grain discharge port 403. An opening and closing mechanism 14 for controlling the automatic opening and closing of the baffle plate 13 is also provided in the lower bin b.

[0028] The opening and closing mechanism 14 is as follows Figure 5 shown, including racks 1401 symmetrically arranged on the bottom surface of the material baffle 13. A transmission shaft 1403 is rotatably sleeved in the lower bin b. A gear 1404 is fixedly sleeved on the transmission shaft 1403, and the gear 1404 meshes with the rack 1401. An external part of the drying box 4 is provided with a driving motor 1405 connected to the transmission shaft 1403 and used to drive its rotation.

[0029] During specific use, when it is necessary to open the grain discharging port 403 for discharging, the driving motor 1405 drives the gear 1404 to rotate. Under the meshing of the gear 1404 and the rack 1401, the material baffle 13 is controlled to move leftward to open the grain discharging port 403, so that the grain in the upper bin a can smoothly fall into the grain discharging device 9 and be conveyed outward. Embodiment

[0030] On the basis of the first embodiment, as follows Figure 3 shown, a grain scraping rod 804 is fixedly sleeved at the bottom of the stirring shaft 802. The grain scraping rod 804 contacts the upper surface of the ventilation bin plate 402. When the grain discharging device 9 is discharging grain, the stirring shaft 802 drives the grain scraping rod 804 to rotate, which can scrape the remaining grain in the upper bin a to the position of the grain discharging port 403, so that all the grain can fall into the grain discharging device 9 and be conveyed outward.

[0031] The above are only the preferred embodiments of the present invention and do not limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A mobile rapid grain dehumidifier, comprising a mobile vehicle frame and a drying box. The mobile vehicle frame consists of a frame base and wheels under the frame base, and the dehumidifier is installed on the frame base. It is characterized in that, It further includes a hot air bin, a ventilation duct, a fan, a gas circulation duct and a grain conveying device. The grain conveying device is connected to the grain inlet at the top of the drying box and is used to lift and convey the grain to be dried into the drying box. The ventilation duct is connected to the hot air bin, and a fan is installed on the frame base. The input end and the output end of the fan are respectively connected to the outlet of the ventilation duct and the inlet of the gas circulation duct, and the gas circulation duct is connected to the drying box; The drying box is composed of a vertical grain bin. A ventilation bin plate is horizontally arranged in the grain bin. The ventilation bin plate divides the inside of the grain bin into an upper bin and a lower bin up and down. The upper bin is used for storing grain, and a stirring device is arranged in the upper bin. A grain discharging port is opened on the ventilation bin plate. A grain discharging device is arranged in the lower bin. The grain discharging device corresponds to the grain discharging port in position, and a baffle plate is arranged between the two. Air inlets are arranged in both the upper bin and the lower bin. The gas circulation duct has two outlets, and the two outlets are respectively connected to the air inlets of the upper bin and the lower bin. An air path adjusting mechanism is arranged in the gas circulation duct. The air path adjusting mechanism is used to adjust the air direction of the gas circulation duct and control the hot air to enter the upper bin and / or the lower bin of the drying box.

2. The mobile rapid grain dehumidifier according to claim 1, characterized in that, The air path adjusting mechanism includes a rotating shaft rotatably sleeved in the gas circulation duct. A ventilation baffle is installed on the rotating shaft. An adjusting motor is installed outside the gas circulation duct. The adjusting motor is connected to the rotating shaft and is used to control the rotation of the rotating shaft and the ventilation baffle. The ventilation baffle is used to adjust the flow direction of the hot air in the gas circulation duct, and the flow direction of the hot air entering the upper bin and / or the lower bin of the drying box is controlled by adjusting the angular position of the ventilation baffle.

3. A mobile rapid grain dehumidifier according to claim 1, characterized in that, The grain conveying device includes a hoist housing. A grain inlet is arranged at the bottom on the side of the hoist housing facing away from the drying box, and a grain outlet is arranged at the top on the side facing the drying box. The grain outlet corresponds to the grain inlet of the drying box in position. A hoist conveyor shaft is rotatably sleeved up and down in the hoist housing. Hoist belts are arranged in a matching manner on the two hoist conveyor shafts. A plurality of hoist buckets are evenly arranged on the outer side of the hoist belt. The hoist buckets are used to hold and lift the grain upward. A hoist motor is installed outside the hoist housing. The hoist motor is connected to one of the hoist conveyor shafts to control the operation of the grain conveying device.

4. A mobile rapid grain dehumidifier according to claim 1, characterized in that, The stirring device includes a stirring motor and a stirring shaft. The stirring motor is installed at the center position of the top of the drying box. The output end of the stirring motor is fixedly sleeved with the stirring shaft. Bearing seats are arranged at both the top and the bottom of the upper bin. The stirring shaft is longitudinally rotatably sleeved in the upper bin through the bearing seats, and stirring rods are arranged on the stirring shaft.

5. A mobile rapid grain dehumidifier according to claim 1, characterized in that, The grain discharging device includes an auger housing penetrating through the lower bin of the drying box. An inlet corresponding to the grain discharging port is arranged at the top of the auger housing. The baffle plate is slidably installed between the inlet of the auger housing and the grain discharging port. A feeding auger is rotatably sleeved in the auger housing. A discharging motor is installed on the frame base. The discharging motor is in transmission connection with the feeding auger and is used to control the rotation of the feeding auger for feeding.

6. A mobile rapid grain dehumidifier according to claim 1, characterized in that, The bottom surface of the ventilation bin plate is horizontally provided with two sliding grooves, and two sliding blocks matching the sliding grooves are arranged on the material baffle. The material baffle is directionally slidably sleeved in the lower sliding groove of the ventilation bin plate through the sliding blocks. The opening and closing of the grain unloading port are realized by the left and right movement of the material baffle, and an opening and closing mechanism for controlling the automatic opening and closing of the material baffle is arranged in the lower bin.

7. The mobile rapid grain dehumidifier according to claim 6, characterized in that, The opening and closing mechanism includes racks symmetrically arranged on the bottom surface of the material baffle. A transmission shaft is rotatably sleeved in the lower bin, and a gear is fixedly sleeved on the transmission shaft, and the gear meshes with the rack. An external drive motor connected to the transmission shaft and used to drive its rotation is installed on the drying box.

8. A mobile rapid grain dehumidifier according to claim 4, characterized in that, A grain scraping rod is fixedly sleeved at the bottom of the stirring shaft, and the grain scraping rod contacts the upper surface of the ventilation bin plate.

Images