Agricultural soybean drying treatment equipment

Abstract

The invention discloses agricultural soybean drying treatment equipment, and relates to the technical field of agricultural soybean drying equipment, the agricultural soybean drying treatment equipment comprises an inner cylinder, a bearing block, an air guide rod and an auxiliary air blowing assembly, and the inner cylinder is vertically placed; the bearing block is coaxial with the inner cylinder, is vertically connected to the interior of the inner cylinder in a sliding manner and is used for bearing to-be-dried soybeans; the multiple air guide rods are distributed around the axis of the inner cylinder in an array mode, multiple air spraying holes are formed in the side walls of the air guide rods, all the air guide rods vertically penetrate through the bearing block, and one end of the bottom of each air guide rod is used for being externally connected with an air source; the auxiliary blowing assemblies are located below the bearing block at intervals and can blow air upwards. An opening and closing assembly is arranged at the position, close to the edge, of the bearing block and can be discontinuously opened when the bearing block ascends so that the soybeans on the bearing block can fall. The soybean drying device has the effect of improving the soybean drying efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of agricultural soybean drying equipment, and in particular to agricultural soybean drying processing equipment. Background Art

[0002] In the agricultural field, soybeans are one of the most important agricultural products traded in the world and are an important food crop and cash crop. The protein content of soybeans is as high as about 40%, and they contain a variety of amino acids, especially the essential amino acids that cannot be synthesized by the human body, which are relatively balanced; soybean meal is also a high-quality feed raw material, widely used in animal husbandry to provide protein for animals; in industry, soybeans can also be used to produce industrial products such as biodiesel, plastics, and fibers.

[0003] The moisture content of newly harvested soybeans is usually around 20%-25%, depending on factors such as the harvest period, weather conditions and soybean variety. If the soybeans need to be stored for a long time, their moisture content needs to be reduced to below 13%. Therefore, the soybeans need to be dried before storage to ensure that the moisture content of the soybeans can meet the storage requirements.

[0004] There are two common ways to dry soybeans: natural drying and artificial drying. Natural drying uses sunlight, wind and other conditions in the natural environment to gradually evaporate the moisture in the soybeans to reduce the moisture content. This method is greatly affected by weather conditions, has a slow drying speed, and is easily contaminated by dust and impurities. Artificial drying uses mechanical equipment or heat sources to accelerate the evaporation of moisture in soybeans through heating, ventilation and other methods. Soybeans are usually piled together when drying. Conventional drying equipment cannot fully dry the soybeans piled in the inner layer, making the overall drying effect of the soybeans unsatisfactory. Summary of the invention

[0005] In order to improve the situation where conventional drying equipment cannot fully dry the soybeans piled in the inner layer, thus affecting the overall drying effect of the soybeans, the present application provides an agricultural soybean drying processing equipment.

[0006] The present application provides an agricultural soybean drying and processing equipment, which adopts the following technical solution: An agricultural soybean drying and processing equipment, comprising The inner cylinder is placed vertically, and a gas outlet hole is opened on the side wall of the upper part of the inner cylinder, and a feed port is arranged on the top of the inner cylinder; A supporting block is coaxial with the inner cylinder and vertically slidably connected to the inner cylinder, and the side wall of the supporting block is in close contact with the inner wall of the inner cylinder, and is used for supporting the soybeans to be dried; There are multiple air guide rods, which are arranged in an array around the axis of the inner cylinder, and the side walls are provided with multiple air injection holes. All the air guide rods are vertically penetrated through the supporting block, and one end of the bottom is used for connecting to an external wind source; An auxiliary blowing assembly is spaced below the supporting block and is capable of blowing air upwards; An opening and closing component is provided near the edge of the supporting block, and the opening and closing component can be opened intermittently when the supporting block rises, so as to allow the soybeans on the supporting block to fall.

[0007] Optionally, the supporting block includes an outer ring layer and an inner ring layer, the inner ring layer is coaxially connected to the inside of the outer ring layer, the outer wall of the outer ring layer is in close contact with the inner wall of the inner tube, the top surface of the inner ring layer is an upwardly protruding conical surface, and is provided with spiral ribs, the spiral ribs are spirally arranged around the axis of the inner tube, the inner ring layer is vertically penetrated by a through hole, and a driving assembly is arranged inside the inner tube, and when the supporting block rises as a whole, the driving assembly drives the inner ring layer to rotate.

[0008] Optionally, the driving assembly includes a center guide rod, which passes through the inner ring layer and is coaxially fixed with the inner cylinder. The outer wall of the center guide rod is provided with a spiral groove, the inner side wall of the inner ring layer is slidably connected in the spiral groove, the side wall of the center guide rod is provided with an air jet hole, and one end of the bottom is used for an external wind source.

[0009] Optionally, a rotating disk is provided at the bottom of the air guide rod, and a sealing base is coaxially connected to the bottom of the rotating disk. A sealed heating cavity is formed between the rotating disk and the sealing base, and a heating element is provided in the heating cavity. All internal spaces of the air guide rod are connected to the heating cavity, and the heating cavity is used to connect to an external air source.

[0010] Optionally, the opening and closing assembly includes a sealing block, a return piece, a first magnet and a second magnet, at least one pair of sealing blocks is provided, each pair of sealing blocks is symmetrically distributed relative to the axis of the inner cylinder, the sealing blocks are horizontally slidably connected to the outer ring layer along the radial direction of the inner cylinder, and a blanking opening is vertically penetrated through the outer ring layer corresponding to the position of the sealing block, the first magnet corresponds to the sealing block one by one and is fixed to the outer wall of the sealing block, the second magnet corresponds to the first magnet and is embedded in the outer wall of the inner ring layer, the first magnet and the second magnet have opposite magnetic poles arranged opposite to each other, when the second magnet moves close to the first magnet, the sealing block opens the blanking opening, and the return piece is used to restore the position of the sealing block to seal the blanking opening.

[0011] Optionally, an outer cylinder is provided on the coaxial cover outside the inner cylinder, the inner diameter of the outer cylinder is larger than the outer diameter of the inner cylinder, a heat exchange tube is provided inside the outer cylinder, the heat exchange tube is spirally wound on the outside of the inner cylinder, one end of the heat exchange tube is connected to an external air source, and the other end is connected to the heating cavity, the diameter of the heat exchange tube gradually increases from top to bottom, and the heat exchange tube is used to be distributed between the air outlet hole on the inner cylinder and the auxiliary blowing assembly.

[0012] Optionally, the auxiliary blowing assembly includes an inclined receiving plate, which is placed inside the inner tube and has a gap between the lower end of the receiving plate and the inner tube. An air duct is provided at the bottom of the receiving plate for connecting to an external air source. The air duct is provided with a plurality of vertically upward air outlets. The air outlets of the air duct are spaced apart and all pass upward through the receiving plate.

[0013] Optionally, an air intake hole is opened on the side wall below the inner cylinder corresponding to the receiving plate, and a plurality of cooling plates are arranged inside the inner cylinder, and the cooling plates are all placed below the receiving plate. The plurality of cooling plates are spaced apart and tilted up and down, and the tilt directions of two adjacent cooling plates are opposite, and a gap is left between the lower end of each cooling plate and the inner wall of the inner cylinder, and all cooling plates are penetrated by through holes.

[0014] Optionally, a limit block is provided on the inner wall of the inner cylinder corresponding to the bottom of the air outlet hole, and the outer ring layer can be against the limit block. A lifting piece is provided at the bottom of the limit block to drive the supporting block to slide vertically. A contact switch is provided on the top surface of the limit block. When the bottom surface of the outer ring layer contacts the contact switch, the lifting piece drives the supporting block to rise.

[0015] In summary, the present application includes at least one of the following beneficial effects: 1. By arranging a central guide rod and a plurality of vertical air guide rods inside the inner cylinder, when the soybeans to be dried are poured into the inner cylinder, the support block is pressed down to the bottom by the soybeans, and the central guide rod and all the air guide rods are inserted into the soybeans to be dried. The length of the air guide rod inserted into the soybeans corresponds to the thickness of the soybean accumulation. After the air guide rod is connected to an external wind source, the air guide rod can guide the hot air to be ejected from each air jet hole on the side wall of the air guide rod and the central guide rod, so that the hot air flow can start from the inside of the accumulated soybeans to dry the soybeans, and each air guide rod is evenly distributed. Inside the piled soybeans, the hot air flow can blow and dry all the soybeans more evenly; and when the support block rises, the inner circle layer inside it can rotate along the central guide rod, and when the inner circle layer rotates, it can drive all the air guide rods to rotate synchronously. The rotating air guide rods can continuously stir the piled soybeans, so that the piled soybeans can continuously adjust their positions, and the air guide rods are constantly blowing and drying the soybeans while stirring the soybeans, so that the hot air flow can dry the soybeans evenly from all directions, further improving the soybean drying effect; 2. As the supporting block gradually rises, the inner ring layer inside it will rotate synchronously. The top surface of the inner ring layer is a conical surface. Since the soybeans at the center are dried by the hot air flow in the air guide rod and the center guide rod at the same time, the soybeans at the center are dried faster. The inner ring layer with a conical top surface is more conducive to the soybeans at the center falling to the outer ring, and the top surface of the inner ring layer is provided with spiral ribs, which will rotate synchronously with the inner ring layer. The rotating spiral ribs will further push the soybeans at the center to the outer ring position, thereby improving the transfer efficiency of the soybeans at the bottom; 3. When the inner circle rotates, the second magnet on the outer wall of the inner circle will rotate with it. When the second magnet gradually approaches the first magnet during the rotation, the first magnet will be attracted to the second magnet due to the attraction between opposite poles. The first magnet will drive the blocking block to move synchronously toward the inner circle. During the movement of the blocking block, the drop opening will be opened. At this time, the soybeans in the outermost circle will fall from the drop opening. The soybeans after falling are in the opposite direction of the air flow blown out of the induced draft pipe, so that the hot air flow can sweep the soybeans from bottom to top, which has a better drying effect on the soybeans; spray upwards The hot air flow outward can cushion the falling soybeans, effectively reducing the impact of the soybeans after falling, and preventing the soybeans from being damaged by the impact; the hot air flow sprayed upward can also reduce the falling speed of the soybeans, prolonging the falling time of the soybeans, thereby prolonging the time for the hot air flow to dry the soybeans; because the drop port is opened at intervals, only a small part of the soybeans located in the outer circle can successfully fall out of the drop port when the drop port is opened, so that the soybeans can fall in batches and one by one, and the soybeans are concentratedly dried by the hot air flow again during the falling process, so that the soybeans are dried more thoroughly; 4. By arranging a heat exchange tube on the outer ring of the inner cylinder, the hot air flow after drying the soybeans inside the inner cylinder will enter the interlayer between the outer cylinder and the inner cylinder from the air outlet hole and move downward. The hot air flow will contact the outer wall of the heat exchange tube during the downward movement. At this time, the hot air flow can first preheat the air flow inside the heat exchange tube, thereby reducing energy consumption; and there is also a cooling plate at the bottom of the inner cylinder. The temperature of the hot air flow will gradually decrease after contacting the heat exchange tube. The air flow after the temperature drops moves downward and re-enters the bottom of the inner cylinder from the air inlet hole. The cooled air flow can cool the dried soybeans, so that the dried soybeans can be cooled to room temperature quickly, which is convenient for subsequent processing of the soybeans. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram showing the overall appearance of the outer cylinder in an embodiment of the present application; Figure 2 It is a partial schematic diagram showing the internal structure of the outer cylinder and the inner cylinder in the embodiment of the present application; Figure 3 is a schematic diagram showing the structure of the supporting block in an embodiment of the present application; Figure 4 is a schematic diagram showing the structure of the sealing cover and the sealing base in an embodiment of the present application; Figure 5 is a partial cross-sectional schematic diagram showing a supporting block according to an embodiment of the present application; Figure 6 yes Figure 5 An enlarged schematic diagram at A; Figure 7 is a cross-sectional schematic diagram showing the internal structure of the drying processing equipment according to the embodiment of the present application; Figure 8 It is a schematic diagram showing the structure of the heat exchange tube according to an embodiment of the present application.

[0017] Explanation of the reference numerals: 1. Inner cylinder; 11. Feed port; 12. Limit block; 121. Lifting member; 122. Contact switch; 13. Air guide rod; 131. Jet hole; 132. Rotating disk; 14. Air outlet hole; 15. Receiving plate; 16. Air duct; 161. Air outlet; 17. Air inlet hole; 18. Cooling plate; 2. Outer cylinder; 21. Sealing cover; 3. Support block; 31. Outer ring layer; 311. Feed port; 32. Inner ring layer; 4. Center guide rod; 41. Spiral groove; 5. Sealing base; 51. Heating cavity; 52. Heating member; 6. Opening and closing assembly; 61. Sealing block; 62. Return member; 63. First magnet; 64. Second magnet; 7. Heat exchange channel; 71. Heat exchange tube; 8. Receiving box. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1-8 This application is described in further detail.

[0019] The present application embodiment discloses an agricultural soybean drying and processing equipment, referring to Figure 1 and Figure 2 The agricultural soybean drying and processing equipment comprises an inner cylinder 1 and an outer cylinder 2, wherein the inner cylinder 1 and the outer cylinder 2 are coaxially arranged, wherein the inner cylinder 1 is placed vertically, the outer cylinder 2 is covered outside the inner cylinder 1, and the inner diameter of the outer cylinder 2 is larger than the outer diameter of the inner cylinder 1, so that a space is left between the inner cylinder 1 and the outer cylinder 2. The top wall of the outer cylinder 2 is fixedly connected to the top wall of the inner cylinder 1 as a whole, and a feed port 11 is provided on the top surface of the outer cylinder 2, and the feed port 11 vertically penetrates the outer cylinder 2 and the inner cylinder 1 at the same time, so that the feed port 11 is connected to the inside of the inner cylinder 1, and the soybeans to be dried can be input into the inner cylinder 1 from the feed port 11. The outer cylinder 2 is hinged with a sealing cover 21 that can be opened and closed at the feed port 11, and the sealing cover 21 can seal the inner cylinder 1 and the outer cylinder 2 when drying the soybeans. A leg (not shown) can be provided at the bottom of the outer cylinder 2 to support the outer cylinder 2.

[0020] Reference Figure 2 and Figure 3A support block 3 is coaxially arranged inside the inner cylinder 1. The support block 3 is vertically slidably connected to the inner cylinder 1. A limit block 12 is fixed on the inner side wall of the inner cylinder 1. Two limit blocks 12 may be provided, and the two limit blocks 12 are symmetrically distributed relative to the axis of the inner cylinder 1. The top surface of the limit block 12 may abut against the bottom surface of the support block 3, so that the limit block 12 can support the support block 3 and prevent the support block 3 from sliding further downward, so that the support block 3 can always remain above the limit block 12. After the support block 3 is restricted from sliding downward by the limit block 12, the support block 3 can play the role of supporting the soybeans to be dried.

[0021] A vertical and hollow air guide rod 13 is also provided inside the inner cylinder 1. There are multiple air guide rods 13. In the embodiment of the present application, there are six air guide rods 13. The six air guide rods 13 are distributed in a circular array around the axis of the inner cylinder 1, and a plurality of air jet holes 131 are provided on the side wall of each air guide rod 13. The air jet holes 131 extend along the length direction of the air guide rod 13. All air guide rods 13 are vertically penetrated in the support block 3, and one end of the bottom of all air guide rods 13 is used for external hot air source. The number, diameter or distribution position of the air guide rods 13 can be adjusted according to the actual situation, so that the airflow ejected from the air guide rods 13 can completely cover all the accumulated soybeans.

[0022] The air guide rod 13 can guide the hot air flow into itself, and then the hot air flow moves upward along the air guide rod 13, and finally sprays out from the air jet hole 131 on the side wall of the air guide rod 13, so as to blow the hot air flow to the surface of the soybeans to be dried. An air outlet hole 14 is opened on the side wall of the inner cylinder 1 above the corresponding limit block 12. After drying the soybeans, the hot air flow sprayed from the air guide rod 13 will enter the interlayer space between the outer cylinder 2 and the inner cylinder 1 through the air outlet hole 14.

[0023] The soybeans to be dried are poured into the internal space of the inner cylinder 1 from the feed port 11 at the top, which will press the supporting block 3 down to the bottom and against the limit block 12, and the soybeans are gradually accumulated in the inner cylinder 1. At this time, all the air guide rods 13 are inserted into the soybeans to be dried, and the air guide rods 13 are evenly distributed inside the soybeans. The length of the air guide rods 13 inserted into the soybeans corresponds to the thickness of the accumulated soybeans. After the air guide rods 13 are connected to an external wind source, since all the air guide rods 13 are inserted into the soybeans, the hot air flow can start to dry the soybeans from the inside of the accumulated soybeans, and each air guide rod 13 is evenly distributed inside the accumulated soybeans, so that the hot air flow can blow and dry all the soybeans more evenly, thereby improving the soybean drying effect.

[0024] Furthermore, all the air guide rods 13 are slidably connected to the support block 3, and a lifting member 121 is fixed under each of the two limit blocks 12. The lifting member 121 can be an electric cylinder or a hydraulic cylinder. The output shaft of the lifting member 121 vertically passes through the limit block 12 and abuts against the bottom surface of the support block 3, so that the lifting member 121 can drive the support block 3 to rise vertically, and at the same time, the lifting member 121 can drive the support block 3 to slowly descend. A contact switch 122 is fixed on the top surface of the limit block 12. The contact switch 122 can be externally connected to a control unit. When the bottom surface of the support block 3 contacts the contact switch 122, the contact switch 122 sends a positioning signal to the external control unit, and then the external control unit sends a lifting signal to the lifting member 121. At this time, the lifting member 121 drives the support block 3 to rise.

[0025] A central guide rod 4 is passed through and slidably connected to the central axis of the supporting block 3. The top of the central guide rod 4 is coaxially fixed to the top wall of the inner tube 1. A spiral groove 41 is arranged on the outer wall of the central guide rod 4 in the vertical direction. The inner side wall of the supporting block 3 is slidably connected to the spiral groove 41. The interior of the central guide rod 4 is also hollow. At the same time, an air jet hole 131 is also opened on the side wall of the central guide rod 4. The central guide rod 4 can also introduce a hot air flow from the bottom and then blow it out from the air outlet hole 14 to dry the soybeans.

[0026] Specifically, refer to Figures 2 to 4 , a rotating disk 132 is fixed at the bottom of the air guide rod 13, and the rotating disk 132 is coaxially arranged with the inner tube 1. In the embodiment of the present application, the rotating disk 132 has an annular appearance, and the bottom of the rotating disk 132 is coaxially rotatably connected with a sealing base 5, the rotating disk 132 is sealedly connected to the sealing base 5, and a sealed heating cavity 51 is formed between the rotating disk 132 and the sealing base 5, and the bottom end of the central guide rod 4 penetrates into the heating cavity 51, and a heating element 52 is fixed in the heating cavity 51, and the heating element 52 can be an electric heating wire. The internal space of all air guide rods 13 is connected to the heating cavity 51, and the internal space of the central guide rod 4 is also connected to the heating cavity 51. The heating cavity 51 can be connected to an external wind source. After the airflow is introduced into the heating cavity 51, the heating element 52 can heat the airflow to form a hot airflow.

[0027] When the lifting member 121 drives the supporting block 3 to rise, the supporting block 3 will slide along the spiral groove 41, so that the supporting block 3 will rotate while rising. When the supporting block 3 rotates, it will drive all the air guide rods 13 to rotate together. The rotating air guide rods 13 can continuously stir the accumulated soybeans, so that the accumulated soybeans can be continuously turned over to adjust their own positions. In addition, the air guide rods 13 are also continuously blowing air to dry the soybeans while stirring the soybeans, so that the hot air flow can dry the soybeans evenly from all directions, further improving the soybean drying effect.

[0028] Further, see Figure 3 and Figure 5The supporting block 3 includes an outer ring layer 31 and an inner ring layer 32, the inner ring layer 32 is coaxially connected to the inner ring layer 31, and the bottom surface of the outer ring layer 31 supports the inner ring layer 32. The outer wall of the outer ring layer 31 is in close contact with the inner wall of the inner tube 1, the output shaft of the lifting member 121 is against or fixed to the bottom surface of the outer ring layer 31, the lifting member 121 can drive the inner ring layer 32 to rise synchronously through the outer ring layer 31, and all the air guide rods 13 are upwardly penetrated in the inner ring layer 32.

[0029] The top surface of the inner circle layer 32 is an upwardly protruding conical surface, that is, the outer diameter of the inner circle layer 32 gradually increases from top to bottom, and the top surface of the outer circle layer 31 can be flush with the top surface of the inner circle layer 32. The inner circle layer 32 with an inclined top surface is more conducive to the soybeans sliding onto the top surface of the outer circle layer 31. The top surface of the inner circle layer 32 can be fixed with spiral ribs (not shown), which protrude upward from the surface of the inner circle layer 32, and the spiral ribs are spirally distributed around the axis of the inner cylinder 1, and the spiral ribs gradually extend outward from the axis of the inner circle layer 32 to the outermost circle position of the inner circle layer 32, and a plurality of through holes are vertically penetrated through the inner circle layer 32.

[0030] Further, see Figures 3 to 6 An opening and closing assembly 6 is arranged between the outer ring layer 31 and the inner ring layer 32, and the opening and closing assembly 6 includes a sealing block 61, a return member 62, a first magnet 63 and a second magnet 64. At least one pair of sealing blocks 61 is arranged. In the embodiment of the present application, a pair of sealing blocks 61 is arranged, and this pair of sealing blocks 61 is symmetrically distributed relative to the axis of the inner tube 1, and the position of the sealing block 61 is staggered with the position of the limit block 12.

[0031] The blocking block 61 is horizontally slidably connected to the outer ring layer 31 along the radial direction of the inner tube 1. A blanking opening 311 is vertically penetrated and opened at the position of the outer ring layer 31 corresponding to the blocking block 61. The blocking block 61 can block or open the blanking opening 311 after sliding. The first magnet 63 corresponds to the blocking block 61 one by one, and the first magnet 63 is fixed on the outer wall of the blocking block 61 close to the inner ring layer 32. The second magnet 64 corresponds to the first magnet 63, and the second magnet 64 is embedded on the outer wall of the inner ring layer 32. The magnetic poles of opposite sex on the first magnet 63 and the second magnet 64 are arranged opposite to each other. In this way, when the second magnet 64 moves close to the first magnet 63, the first magnet 63 and the second magnet 64 can attract each other. The return member 62 may be a tension spring, which is horizontally placed below the blocking block 61 , and one end of the return member 62 is fixed to the inner wall of the outer ring layer 31 , and the other end is fixed to the side wall of the blocking block 61 .

[0032] As the support block 3 gradually rises, the inner ring layer 32 inside it will rotate synchronously. The top surface of the inner ring layer 32 is a conical surface. Since the soybeans at the bottom and in the center will be dried by the hot air flow in the air guide rod 13 and the center guide rod 4 at the same time, the soybeans at the bottom and in the center will dry faster. The inner ring layer 32 with a conical top surface is more conducive to the soybeans at the center position falling to the outer ring, and the spiral ribs on the top surface of the inner ring layer 32 will rotate synchronously with the inner ring layer 32. The rotating spiral ribs will further push the soybeans at the bottom and in the center to the top surface of the outer ring layer 31, thereby improving the transfer efficiency of the bottom soybeans.

[0033] When the soybeans are pushed to the top surface of the outer ring layer 31, the inner ring layer 32 will drive the second magnet 64 to rotate with it when it rotates, while the outer ring layer 31 does not rotate. When the second magnet 64 gradually approaches the first magnet 63 during the rotation, due to the attraction between opposite poles of magnets, the first magnet 63 will be attracted by the second magnet 64, and the first magnet 63 will drive the blocking block 61 to move toward the inner ring layer 32 synchronously. During the movement of the blocking block 61, the drop port 311 will be opened. At this time, the soybeans in the outermost circle will fall from the drop port 311. As the inner ring layer 32 continues to rotate, the second magnet 64 will gradually move away from the first magnet 63. At this time, the restoring force generated by the restoring member 62 will push the blocking block 61 to move and block the drop port 311, so that the dried soybeans are divided into multiple batches and gradually fall.

[0034] Further, see Figure 7 and Figure 8 , an inclined receiving plate 15 is also provided inside the inner tube 1. The receiving plate 15 is fixed below the sealing base 5 and is separated from the sealing base 5 by a certain distance. A gap is left between the lower end of the receiving plate 15 and the inner wall of the inner tube 1 for the soybeans to fall. An air duct 16 is fixed at the bottom of the receiving plate 15. The air duct 16 can also be connected to an external hot air source. At the same time, the air duct 16 is provided with a plurality of vertical upward air outlets 161. The air outlets 161 of the air duct 16 are distributed at intervals, and all the air outlets 161 pass through the receiving plate 15 upward, so that the air duct 16 can spray hot air upward through the air outlets 161.

[0035] After the soybeans fall from the drop port 311, since the hot air blown out from the induced draft pipe 16 is from bottom to top, the soybeans after falling are opposite to the air flow blown out from the induced draft pipe 16, so that the hot air flow can sweep the soybeans from bottom to top, which has a better drying effect on the soybeans. The hot air flow sprayed upward can also buffer the falling soybeans, which can reduce the falling rate of the soybeans, effectively reduce the impact of the soybeans on the soybeans after falling, and avoid the soybeans from being damaged by the impact, thereby maintaining the integrity of the soybeans. The hot air flow sprayed upward can also reduce the falling speed of the soybeans, so that the time for the soybeans to fall is extended, and then the time for the hot air flow to dry the soybeans is extended. Since the drop port 311 is opened at intervals, only a small part of the soybeans located in the outer circle can successfully fall out of the drop port 311 when the drop port 311 is opened, so that the soybeans can fall in batches and one by one, and the soybeans are concentratedly dried by the hot air flow again during the falling process, so that the soybeans are dried more thoroughly, greatly improving the effect of soybean drying.

[0036] Furthermore, since the inner diameter of the outer tube 2 is larger than the outer diameter of the inner tube 1, an annular heat exchange channel 7 is formed between the outer tube 2 and the inner tube 1. A heat exchange tube 71 is arranged in the heat exchange channel 7. The heat exchange tube 71 can be made of a metal material with good thermal conductivity, such as iron or aluminum. The bottom of the heat exchange channel 7 can be connected to the outside so that the airflow after drying can be discharged. The heat exchange tube 71 is distributed in the area between the air outlet hole 14 and the receiving plate 15 on the inner tube 1. The heat exchange tube 71 is spirally wound on the outside of the inner tube 1. One end of the heat exchange tube 71 can be connected to an air source such as an induced draft fan. The other end of the heat exchange tube 71 is connected to the heating cavity 51. The heat exchange tube 71 can introduce the external airflow into the heating cavity 51. The winding diameter of the heat exchange tube 71 gradually increases from top to bottom. The hot air flow after drying the soybeans will enter the heat exchange channel 7 from the air outlet hole 14 and move downward. The hot air flow will contact the outer wall of the heat exchange tube 71 during the downward movement. At this time, the hot air flow can first preheat the fresh air flow inside the heat exchange tube 71 to increase the temperature of the fresh air flow, thereby reducing energy consumption. In other embodiments of the present application, the spiral winding length of the heat exchange tube 71 can be increased or decreased according to actual conditions, and heat exchange fins can also be provided on the outer surface of the heat exchange tube 71 to further improve the heat exchange efficiency.

[0037] Furthermore, an air inlet hole 17 is provided on the side wall of the inner tube 1 corresponding to the bottom of the receiving plate 15, and a plurality of cooling plates 18 are fixed inside the inner tube 1. In the embodiment of the present application, three cooling plates 18 are provided. All cooling plates 18 are placed below the receiving plate 15, and the three cooling plates 18 are spaced apart from each other and are tilted. The tilt directions of the two adjacent cooling plates 18 are opposite, and a gap is left between the lower end of each cooling plate 18 and the inner wall of the inner tube 1, and all cooling plates 18 are penetrated with through holes. The soybeans falling from the supporting plate will continue to fall gradually along the tilted cooling plates 18, and a material receiving box 8 is provided below the bottom cooling plate 18. The material receiving box 8 is used to receive the dried soybeans, and the material receiving box 8 is horizontally slidably connected to the inner tube 1 and the outer tube 2, so that the material receiving box 8 can be pulled out for replacement or unloading when it is full.

[0038] The hot air flow will contact the heat exchange tube 71 during its downward movement. Since fresh air with a lower temperature will be introduced into the heat exchange tube 71, the hot air flow with a higher temperature will complete heat exchange with the fresh air with a lower temperature through the heat exchange tube 71, so that the temperature of the hot air flow will gradually decrease. The air flow after the temperature drops will move downward and re-enter the bottom of the inner tube 1 from the air inlet hole 17. Since the temperature of the dried soybeans will rise, the cooled air flow can cool the dried soybeans when the soybeans fall along the cooling plate 18, so that the dried soybeans can be cooled to room temperature faster, which is convenient for subsequent processing of the soybeans.

[0039] The implementation principle of an agricultural soybean drying and processing equipment in an embodiment of the present application is as follows: a central guide rod 4 and a plurality of air guide rods 13 are inserted into the interior of the piled soybeans to dry the soybeans from the inside of the piled soybeans to avoid incomplete drying of the soybeans inside; the air guide rods 13 rotate with the inner ring layer 32; the rotating air guide rods 13 can continuously stir the piled soybeans so that the hot air flow can dry the soybeans uniformly from all directions, further improving the soybean drying effect; the sealing block 61 intermittently opens the drop port 311 during the rotation of the inner ring layer 32, so that the dried soybeans fall in batches one by one, and the soybeans after falling will be dried again by the hot air flow blown upward by the inner air duct 16, thereby improving the soybean drying effect.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An agricultural soybean drying and processing equipment, characterized in that: include The inner cylinder is placed vertically, and a gas outlet hole is opened on the side wall of the upper part of the inner cylinder, and a feed port is arranged on the top of the inner cylinder; A supporting block is coaxial with the inner cylinder and vertically slidably connected to the inner cylinder, and the side wall of the supporting block is in close contact with the inner wall of the inner cylinder, and is used for supporting the soybeans to be dried; There are multiple air guide rods, which are arranged in an array around the axis of the inner cylinder, and the side walls are provided with multiple air injection holes. All the air guide rods are vertically penetrated through the supporting block, and one end of the bottom is used for connecting to an external wind source; An auxiliary blowing assembly is spaced below the supporting block and is capable of blowing air upwards; An opening and closing component is provided near the edge of the supporting block, and the opening and closing component can be opened intermittently when the supporting block rises, so as to allow the soybeans on the supporting block to fall.

2. The agricultural soybean drying and processing equipment according to claim 1, characterized in that: The supporting block includes an outer ring layer and an inner ring layer. The inner ring layer is coaxially connected to the inner part of the outer ring layer. The outer wall of the outer ring layer is tightly attached to the inner wall of the inner tube. The top surface of the inner ring layer is an upwardly protruding conical surface and is provided with spiral ribs. The spiral ribs are spirally arranged around the axis of the inner tube. A through hole is vertically penetrated through the inner ring layer. A driving assembly is arranged inside the inner tube. When the supporting block rises as a whole, the driving assembly drives the inner ring layer to rotate.

3. The agricultural soybean drying and processing equipment according to claim 2, characterized in that: The driving assembly includes a central guide rod, which passes through the inner ring layer and is coaxially fixed to the inner cylinder. The outer wall of the central guide rod is provided with a spiral groove, the inner side wall of the inner ring layer is slidably connected to the spiral groove, the side wall of the central guide rod is provided with an air jet hole, and one end of the bottom is used for an external wind source.

4. The agricultural soybean drying and processing equipment according to claim 3, characterized in that: A rotating disk is provided at the bottom of the air guide rod, and a sealing base is coaxially connected to the bottom of the rotating disk. A sealed heating cavity is formed between the rotating disk and the sealing base, and a heating element is provided in the heating cavity. All internal spaces of the air guide rod are connected to the heating cavity, and the heating cavity is used to connect to an external air source.

5. The agricultural soybean drying and processing equipment according to claim 4, characterized in that: The opening and closing assembly includes a sealing block, a return piece, a first magnet and a second magnet. There is at least one pair of sealing blocks, each pair of sealing blocks is symmetrically distributed relative to the axis of the inner cylinder, the sealing blocks are horizontally slidably connected to the outer ring layer along the radial direction of the inner cylinder, and a blanking opening is vertically penetrated through the outer ring layer corresponding to the position of the sealing block. The first magnet corresponds to the sealing block one by one and is fixed to the outer wall of the sealing block. The second magnet corresponds to the first magnet and is embedded in the outer wall of the inner ring layer. The first magnet and the second magnet have opposite magnetic poles arranged opposite to each other. When the second magnet moves close to the first magnet, the sealing block opens the blanking opening, and the return piece is used to restore the position of the sealing block to seal the blanking opening.

6. The agricultural soybean drying and processing equipment according to claim 5, characterized in that: An outer cylinder is coaxially covered outside the inner cylinder, and the inner diameter of the outer cylinder is larger than the outer diameter of the inner cylinder. A heat exchange tube is arranged inside the outer cylinder, and the heat exchange tube is spirally wound outside the inner cylinder. One end of the heat exchange tube is connected to an external air source, and the other end is connected to the heating cavity. The diameter of the heat exchange tube increases gradually from top to bottom, and the heat exchange tube is used to be distributed between the air outlet hole on the inner cylinder and the auxiliary blowing assembly.

7. The agricultural soybean drying and processing equipment according to claim 6, characterized in that: The auxiliary blowing assembly includes an inclined receiving plate, which is placed inside the inner tube, and a gap is left between the lower end of the receiving plate and the inner tube. An air duct is provided at the bottom of the receiving plate for connecting to an external air source. The air duct is provided with a plurality of vertically upward air outlets, and the air outlets of the air duct are distributed at intervals and all pass upward through the receiving plate.

8. The agricultural soybean drying and processing equipment according to claim 7, characterized in that: An air intake hole is provided on the side wall of the inner cylinder corresponding to the receiving plate below, and a plurality of cooling plates are arranged inside the inner cylinder, and the cooling plates are all placed below the receiving plate. The plurality of cooling plates are spaced apart and tilted up and down, and the tilt directions of two adjacent cooling plates are opposite, and a gap is left between the lower end of each cooling plate and the inner wall of the inner cylinder, and all cooling plates are penetrated by through holes.

9. The agricultural soybean drying and processing equipment according to claim 2, characterized in that: A limit block is arranged on the inner wall of the inner cylinder corresponding to the lower part of the air outlet hole, and the outer ring layer can abut against the limit block. A lifting piece is arranged at the bottom of the limit block to drive the supporting block to slide vertically. A contact switch is arranged on the top surface of the limit block. When the bottom surface of the outer ring layer contacts the contact switch, the lifting piece drives the supporting block to rise.

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