Agricultural soybean drying treatment device

Abstract

The application discloses an agricultural soybean drying treatment equipment, and relates to the technical field of agricultural soybean drying equipment, which comprises an inner cylinder, a supporting block, air guide rods and an auxiliary air blowing assembly. The inner cylinder is vertically placed. The supporting block is coaxial with the inner cylinder and is vertically and slidingly connected to the inner cylinder. The supporting block is used for supporting soybeans to be dried. The air guide rods are arranged in an array around the axis of the inner cylinder. The sidewalls of the air guide rods are provided with a plurality of air injection holes. All the air guide rods are vertically arranged in the supporting block, and the bottom end of each air guide rod is used for connecting an air source. The auxiliary air blowing assembly is located below the supporting block and can blow air upward. The supporting block is provided with an opening and closing assembly near the edge position. The opening and closing assembly can be intermittently opened when the supporting block is raised, so that the soybeans on the supporting block can fall. The application has the effect of improving the drying efficiency of soybeans.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of agricultural soybean drying equipment, and in particular to agricultural soybean drying treatment equipment. BACKGROUND

[0002] In the field of agriculture, soybean is one of the important agricultural product trade commodities in the world, and is an important food crop and economic crop. The protein content of soybean is as high as about 40%, and contains various amino acids, especially the essential amino acid composition that cannot be synthesized by the human body is relatively balanced; soybean meal is also a high-quality feed raw material, which is widely used in animal husbandry to provide protein for animals; in the industry, soybean can also be used to produce biodiesel, plastic, fiber and other industrial products.

[0003] The water content of freshly harvested soybeans is usually about 20%-25% due to factors such as the harvesting period, weather conditions and soybean varieties, and the water content needs to be reduced to below 13% if the soybeans need to be stored for a long time. Therefore, the soybeans need to be dried before storage to ensure that the water content of the soybeans meets the storage requirements.

[0004] The conventional methods for drying soybeans mainly include natural drying and artificial drying. The natural drying utilizes sunlight and wind power in the natural environment to gradually evaporate the water in the soybeans to reduce the water content. This method is greatly affected by weather conditions, has a slow drying speed, and is easily contaminated by dust and impurities. The artificial drying utilizes mechanical equipment or heat sources to accelerate the evaporation of water in the soybeans through heating and ventilation. However, the soybeans are usually stacked together during drying, and the conventional drying equipment cannot fully dry the soybeans stacked in the inner layer, which affects the overall drying effect of the soybeans. SUMMARY

[0005] In order to improve the situation that the conventional drying equipment cannot fully dry the soybeans stacked in the inner layer, which affects the overall drying effect of the soybeans, the application provides agricultural soybean drying treatment equipment.

[0006] The application provides agricultural soybean drying treatment equipment, which adopts the following technical scheme:

[0007] The agricultural soybean drying treatment equipment comprises

[0008] An inner cylinder is vertically placed, and a side wall of the upper part of the inner cylinder is provided with an air outlet through hole. An inlet is arranged at the top of the inner cylinder.

[0009] A supporting block is coaxial with the inner cylinder and is vertically and slidingly connected to the inner part of the inner cylinder. The side wall of the supporting block is tightly attached to the inner wall of the inner cylinder, and is used for supporting the soybeans to be dried.

[0010] The air guide rods are arranged around the inner cylinder axis and have side walls with a plurality of air injection holes, and all the air guide rods are vertically arranged in the supporting block and have one end connected to an air source;

[0011] The auxiliary air blowing assembly is arranged below the supporting block and blows air upward.

[0012] The opening and closing assembly is arranged near the edge of the supporting block and can be intermittently opened when the supporting block is raised to allow the soybeans on the supporting block to fall.

[0013] Optionally, the supporting block comprises 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 tightly attached to the inner wall of the inner cylinder, the top surface of the inner ring layer is a conical surface protruding upward and is provided with spiral ribs, the spiral ribs are arranged around the inner cylinder axis, and the inner ring layer is vertically provided with a through hole.

[0014] Optionally, the driving assembly comprises a central guide rod, the central guide rod penetrates 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 slidingly connected to the spiral groove, the side wall of the central guide rod is provided with an air injection hole, and one end of the bottom is connected to an air source.

[0015] Optionally, the bottom of the air guide rod is provided with a rotating disc, the bottom of the rotating disc is coaxially connected to a sealing base, a sealed heating cavity is formed between the rotating disc and the sealing base, a heating element is arranged in the heating cavity, the inner space of all the air guide rods is connected to the heating cavity, and the heating cavity is connected to an air source.

[0016] Optionally, the opening and closing assembly comprises a blocking block, a restoring member, a first magnet and a second magnet, the blocking block is provided with at least one pair, each pair of blocking blocks is symmetrically arranged with respect to the inner cylinder axis, the blocking block is slidingly connected to the inner ring layer in the radial direction of the inner cylinder, the outer ring layer is vertically provided with a material falling port corresponding to the position of the blocking block, the first magnet is one-to-one corresponding to the blocking block and is fixed to the outer wall of the blocking block, the second magnet is corresponding to the first magnet and is embedded in the outer side wall of the inner ring layer, the first magnet and the second magnet are oppositely arranged with different magnetic poles, when the second magnet moves close to the first magnet, the blocking block opens the material falling port, and the restoring member is used to restore the position of the blocking block to block the material falling port.

[0017] Optionally, the inner cylinder is provided with an outer cylinder coaxially arranged outside the inner cylinder, the inner diameter of the outer cylinder is larger than the outer diameter of the inner cylinder, the inner part of the outer cylinder is provided with heat exchange pipes, the heat exchange pipes are spirally arranged outside the inner cylinder, one end of the heat exchange pipes is connected with a wind source, the other end is connected with the heating cavity, the diameter of the heat exchange pipes gradually increases from top to bottom, and the heat exchange pipes are arranged between the air outlet holes on the inner cylinder and the auxiliary air blowing assembly.

[0018] Optionally, the auxiliary air blowing assembly comprises an inclined receiving plate, the receiving plate is arranged inside the inner cylinder, a gap is formed between the lower end of the receiving plate and the inner cylinder, and the receiving plate is provided with an air guide pipe at the bottom for connecting with the wind source, the air guide pipe is provided with a plurality of upward air outlets, the air outlets of the air guide pipe are arranged at intervals and pass through the receiving plate upward.

[0019] Optionally, the inner cylinder is provided with air inlet holes on the side wall below the receiving plate, the inner part of the inner cylinder is provided with a plurality of cooling plates, the cooling plates are arranged below the receiving plate, the cooling plates are arranged at intervals and inclined, the adjacent two cooling plates are arranged in opposite directions, a gap is formed between the lower end of each cooling plate and the inner wall of the inner cylinder, and the cooling plates are provided with through holes.

[0020] Optionally, the inner cylinder is provided with a limiting block on the inner wall below the air outlet holes, the outer ring layer can abut against the limiting block, the bottom of the limiting block is provided with a jacking member for driving the supporting block to vertically slide, and the top surface of the limiting block is provided with a contact switch, the jacking member drives the supporting block to rise when the bottom surface of the outer ring layer contacts with the contact switch.

[0021] In summary, the present application has at least one of the following beneficial effects:

[0022] 1. By arranging the central guide rod and a plurality of vertical air guide rods inside the inner cylinder, when the inner cylinder is poured with the soybeans to be dried, the supporting block is pressed down to the bottom by the soybeans, at this time, the central guide rod and all the air guide rods are inserted into the soybeans to be dried, the length of the air guide rods inserted into the soybeans corresponds to the thickness of the soybean accumulation, after the air guide rods are connected with the wind source, the air guide rods can guide the hot air to be sprayed from the air outlets on the sidewalls of the air guide rods and the central guide rod, so that the hot air flow can dry the soybeans from the inside of the accumulated soybeans, and the air guide rods are uniformly distributed in the accumulated soybeans, so that the hot air flow can uniformly dry all the soybeans; and when the supporting block rises, the inner ring layer in the supporting block can rotate along the central guide rod, the rotation of the inner ring layer can drive all the air guide rods to rotate synchronously, the rotating air guide rods can continuously stir the accumulated soybeans, so that the accumulated soybeans can continuously adjust their positions, and the air guide rods can continuously dry the soybeans while stirring the soybeans, so that the hot air flow can uniformly dry the soybeans from all directions, further improving the drying effect of the soybeans;

[0023] 2. In the process of gradually rising, the inner ring layer inside the supporting block rotates synchronously, and the top surface of the inner ring layer is a conical surface. Since the soybeans at the center position are dried by the hot air flow in the center guide rod and the air guide rod at the same time, the soybeans at the center position are dried faster. The conical top surface of the inner ring layer is more conducive to the soybeans at the center position falling to the outer ring. In addition, the inner ring layer top surface is provided with a spiral rib, which rotates synchronously with the inner ring layer. The rotating spiral rib further pushes the soybeans at the center position to the outer ring position, improving the transfer efficiency of the bottom soybeans.

[0024] 3. When the inner ring layer rotates, the second magnet on the outer sidewall of the inner ring layer rotates. When the second magnet gradually approaches the first magnet during rotation, the first magnet is attracted to the second magnet due to the attraction between magnets of different natures. The first magnet moves synchronously towards the inner ring layer, and the blocking block moves towards the inner ring layer during the movement of the blocking block, which opens the material falling port. At this time, the soybeans at the outermost ring will fall from the material falling port. The movement direction of the air flow blown out by the air guide pipe is opposite to that of the fallen soybeans, so that the hot air flow can blow from bottom to top to dry the soybeans. The drying effect of the soybeans is better. The upwardly sprayed hot air flow cushions the falling soybeans, effectively reducing the impact of the falling soybeans, avoiding damage to the soybeans caused by the impact, and reducing the speed of the falling soybeans. The time of the soybeans falling is prolonged, and the time of the hot air flow drying the soybeans is prolonged. Since the material falling port is opened intermittently, only a small part of the soybeans at the outer ring can successfully fall out of the material falling port when the material falling port is opened. The soybeans can be batched and dropped one by one, and the soybeans are dried again by the hot air flow during the falling process, so that the soybeans are dried more thoroughly.

[0025] 4. By arranging the heat exchange pipe outside the inner cylinder, the hot air flow after drying the soybeans in the inner cylinder enters the interlayer between the outer cylinder and the inner cylinder through the air outlet hole, and moves downward. The hot air flow contacts the outer wall of the heat exchange pipe during downward movement, and the hot air flow can preheat the air flow in the heat exchange pipe at this time, thereby reducing energy consumption. There is also a cooling plate at the bottom of the inner cylinder. The temperature of the hot air flow gradually decreases after contacting the heat exchange pipe. The cooled air flow moves downward and reenters the bottom of the inner cylinder through 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, facilitating subsequent processing procedures of the soybeans. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a structural schematic diagram of the overall appearance of the outer cylinder according to the embodiment of the present application;

[0027] Figure 2 is a partial schematic diagram of the internal structure of the outer cylinder and the inner cylinder according to the embodiment of the present application;

[0028] Figure 3 is a structural schematic diagram of a bearing block according to an embodiment of the present application;

[0029] Figure 4 is a structural schematic diagram of a sealing cover and a sealing base according to an embodiment of the present application;

[0030] Figure 5 is a partial sectional view of a bearing block according to an embodiment of the present application;

[0031] Figure 6 is Figure 5 an enlarged schematic view at A;

[0032] Figure 7 is a sectional view of an internal structure of a drying treatment device according to an embodiment of the present application;

[0033] Figure 8 is a structural schematic diagram of a heat exchange pipe according to an embodiment of the present application.

[0034] BRIEF DESCRIPTION OF THE DRAWINGS 1, inner cylinder; 11, feeding port; 12, limiting block; 121, jacking piece; 122, contact switch; 13, air guide rod; 131, air injection hole; 132, rotating disc; 14, air outlet through hole; 15, bearing plate; 16, air duct; 161, air outlet; 17, air inlet through hole; 18, cooling plate; 2, outer cylinder; 21, sealing cover; 3, bearing block; 31, outer ring layer; 311, blanking port; 32, inner ring layer; 4, center guide rod; 41, helical groove; 5, sealing base; 51, heating cavity; 52, heating piece; 6, opening and closing assembly; 61, plugging block; 62, restoring piece; 63, first magnet; 64, second magnet; 7, heat exchange channel; 71, heat exchange pipe; 8, material receiving box. DETAILED DESCRIPTION

[0035] The following will be described in detail with reference to the accompanying drawings. Figures 1-8 The present application will be further described in detail.

[0036] An agricultural soybean drying treatment device is disclosed according to an embodiment of the present application, which refers to Figure 1 and Figure 2The agricultural soybean drying treatment equipment comprises an inner cylinder 1 and an outer cylinder 2, the inner cylinder 1 and the outer cylinder 2 are coaxially arranged, wherein the inner cylinder 1 is vertically placed, the outer cylinder 2 is arranged outside the inner cylinder 1, and the inner diameter of the outer cylinder 2 is greater 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 with the top wall of the inner cylinder 1 as a whole, a feeding port 11 is formed in the top surface of the outer cylinder 2, the feeding port 11 vertically penetrates the outer cylinder 2 and the inner cylinder 1, the feeding port 11 is connected with the inside of the inner cylinder 1, and the soybeans to be dried can be input into the inner cylinder 1 through the feeding port 11. The outer cylinder 2 is hingedly connected with a seal cover 21 capable of being opened and closed at the feeding port 11, and the seal cover 21 can close the inner cylinder 1 and the outer cylinder 2 when the soybeans are dried. The outer cylinder 2 can be provided with supporting legs (not shown) at the bottom to support the outer cylinder 2.

[0037] Referring to Figure 2 and Figure 3 , the inner cylinder 1 is coaxially provided with a supporting block 3 inside, the supporting block 3 is vertically and slidingly connected to the inner cylinder 1, the inner side wall of the inner cylinder 1 is fixedly provided with a limiting block 12, the limiting block 12 can be provided with two, and the two limiting blocks 12 are symmetrically distributed with respect to the axis of the inner cylinder 1, the top surface of the limiting block 12 can abut against the bottom surface of the supporting block 3, so that the limiting block 12 can support the supporting block 3, avoid the supporting block 3 from continuously sliding downward, and make the supporting block 3 always remain above the limiting block 12. After the supporting block 3 is limited to slide downward by the limiting block 12, the supporting block 3 can support the soybeans to be dried.

[0038] The inner cylinder 1 is further provided with vertical and hollow air guide rods 13, and the air guide rods 13 are provided with a plurality of air guide rods 13. In the embodiment of the application, the air guide rods 13 are provided with six air guide rods 13. The six air guide rods 13 are arranged in a circumferential array around the axis of the inner cylinder 1, and a plurality of air injection holes 131 are formed in the side wall of each air guide rod 13, the air injection holes 131 are formed along the length direction of the air guide rod 13, all the air guide rods 13 are vertically and penetratingly arranged in the supporting block 3, and the bottom end of all the air guide rods 13 is used to connect with a hot air source. The number, diameter or distribution position of the air guide rods 13 can be adjusted according to actual conditions, so that the air flow injected from the air guide rods 13 can completely cover all the piled soybeans.

[0039] The air guide rods 13 can introduce hot air flow into the inside of the air guide rods 13, then the hot air flow moves upward along the air guide rods 13, and finally the hot air flow is injected from the air injection holes 131 in the side wall of the air guide rods 13, so as to blow the hot air flow to the surface of the soybeans to be dried. The side wall of the inner cylinder 1 corresponding to the position above the limiting block 12 is provided with an air outlet hole 14, and the hot air flow injected from the air guide rods 13 enters the interlayer space between the outer cylinder 2 and the inner cylinder 1 through the air outlet hole 14 after drying the soybeans.

[0040] The soybeans to be dried are poured into the inner space of the inner cylinder 1 from the top inlet 11, which presses the supporting block 3 to the bottom and abuts against the limiting 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 uniformly distributed in the soybeans, the length of the air guide rods 13 inserted into the soybeans corresponds to the thickness of the soybean accumulation, and after the air guide rods 13 are connected with the air source, the hot air flow can start to dry the soybeans from the inside of the accumulated soybeans, and the uniform distribution of the air guide rods 13 in the accumulated soybeans enables the hot air flow to more evenly blow and dry all the soybeans, thereby improving the drying effect of the soybeans.

[0041] Further, all the air guide rods 13 are slidingly connected to the supporting block 3, and each of the two limiting blocks 12 is fixed with a jacking member 121, which can be an electric cylinder or a hydraulic cylinder, the output shaft of the jacking member 121 vertically penetrates the limiting block 12 and abuts against the bottom surface of the supporting block 3, so that the jacking member 121 can drive the supporting block 3 to vertically rise, and the jacking member 121 can also drive the supporting block 3 to slowly descend. The top surface of the limiting block 12 is fixed with a contact switch 122, which can be connected with an external control unit, when the bottom surface of the supporting block 3 contacts the contact switch 122, the contact switch 122 sends a position signal to the external control unit, and then the external control unit sends a jacking signal to the jacking member 121, at this time, the jacking member 121 drives the supporting block 3 to rise.

[0042] The center guide rod 4 is provided at the center axis of the supporting block 3 and is slidingly connected, the top end of the center guide rod 4 is coaxially fixed with the top wall of the inner cylinder 1, the outer wall of the center guide rod 4 is provided with a spiral groove 41 in the vertical direction, the inner side wall of the supporting block 3 is slidingly connected in the spiral groove 41, and the inside of the center guide rod 4 is also hollow, and the side wall of the center guide rod 4 is also provided with a gas injection hole 131, the center guide rod 4 can also introduce the hot air flow from the bottom and blow it out from the gas outlet through hole 14 to dry the soybeans.

[0043] Specifically, referring to Figures 2 to 4 , the bottom of the air guide rod 13 is fixed with a rotating disc 132, and the rotating disc 132 is coaxially arranged with the inner cylinder 1. In the embodiment of the application, the rotating disc 132 has a ring shape, and the bottom of the rotating disc 132 is coaxially and rotatably connected with the sealing base 5. The rotating disc 132 is sealingly connected with the sealing base 5, and a sealed heating cavity 51 is formed between the rotating disc 132 and the sealing base 5. The bottom end of the center guide rod 4 penetrates into the inside of the heating cavity 51, and a heating member 52 is fixed in the heating cavity 51. The heating member 52 can be an electric heating wire. The inner space of all the air guide rods 13 is connected with the heating cavity 51, and the inner space of the center guide rod 4 is also connected with the heating cavity 51. The heating cavity 51 can be connected with an air source. After the air flow is introduced into the heating cavity 51, the heating member 52 can heat the air flow to form a hot air flow.

[0044] In the process of lifting the supporting block 3 by the jacking member 121, the supporting block 3 will slide along the spiral groove 41, so that the supporting block 3 rotates while being lifted, and the rotation of the supporting block 3 will drive all the air guide rods 13 to rotate together. The rotating air guide rods 13 can continuously stir the stacked soybeans, so that the stacked soybeans can be continuously turned to adjust their positions, and the air guide rods 13 can continuously blow dry the soybeans while stirring the soybeans, so that the hot air flow can uniformly dry the soybeans from all directions, further improving the drying effect of the soybeans.

[0045] Further, referring to Figure 3 and Figure 5 , the supporting block 3 includes an outer ring layer 31 and an inner ring layer 32, the inner ring layer 32 is coaxially connected inside the outer 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 cylinder 1, and the output shaft of the jacking member 121 is in abutment or fixed with the bottom surface of the outer ring layer 31. The jacking 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 arranged in the inner ring layer 32.

[0046] The top surface of the inner ring layer 32 is a conical surface protruding upward, that is, the outer diameter of the inner ring layer 32 gradually increases from top to bottom, and the top surface of the outer ring layer 31 can be flush with the top surface of the inner ring layer 32. The inner ring layer 32 with an inclined top surface is more conducive to the sliding of the soybeans to the top surface of the outer ring layer 31. The inner ring layer 32 can be fixed with spiral ribs (not shown), the spiral ribs protrude upward from the surface of the inner ring layer 32, 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 ring layer 32 to the outermost position of the inner ring layer 32, and the inner ring layer 32 is vertically provided with a plurality of through holes.

[0047] Further, referring to Figures 3 to 6 , the 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 blocking block 61, a restoring member 62, a first magnet 63 and a second magnet 64. The blocking block 61 is provided with at least one pair, in the embodiment of the application, the blocking block 61 is provided with one pair, and the pair of blocking blocks 61 are symmetrically distributed with respect to the axis of the inner cylinder 1. The position of the blocking block 61 is staggered with the position of the limiting block 12.

[0048] The blocking block 61 is horizontally slidably connected in the radial direction of the inner cylinder 1 in the outer ring layer 31, and the outer ring layer 31 is vertically penetrated by a material falling port 311 corresponding to the position of the blocking block 61, and the blocking block 61 can block or open the material falling port 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, and the second magnet 64 corresponds to the first magnet 63, and the second magnet 64 is embedded on the outer side wall of the inner ring layer 32. The first magnet 63 and the second magnet 64 are oppositely arranged with opposite magnetic poles, so that when the second magnet 64 moves close to the first magnet 63, the first magnet 63 and the second magnet 64 can be attracted together. The restoring member 62 can be a tension spring, and the restoring member 62 is horizontally placed below the blocking block 61, and one end of the restoring 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.

[0049] In the process of gradually rising, the inner ring layer 32 in the supporting block 3 rotates synchronously, and the top surface of the inner ring layer 32 is a conical surface. Since the soybeans at the bottom and in the center are dried by the hot air flow in the center guide rod 4 and the air guide rod 13, the soybeans at the bottom and in the center are dried faster. The conical top surface of the inner ring layer 32 is more conducive to the soybeans in the center falling to the outer ring, and the spiral ribs on the top surface of the inner ring layer 32 rotate synchronously with the inner ring layer 32. The rotating spiral ribs further push the soybeans at the bottom and in the center to the top surface of the outer ring layer 31, improving the transfer efficiency of the bottom soybeans.

[0050] When the soybeans are pushed to the top surface of the outer ring layer 31, since the second magnet 64 rotates with the inner ring layer 32 when the inner ring layer 32 rotates, and the outer ring layer 31 does not rotate, when the second magnet 64 gradually approaches the first magnet 63 during rotation, the first magnet 63 is attracted to the second magnet 64 due to the attraction of opposite magnetic poles. The first magnet 63 moves the blocking block 61 synchronously to the inner ring layer 32, and the blocking block 61 opens the material falling port 311 during movement. At this time, the soybeans at the outermost circle will fall from the material falling port 311. As the inner ring layer 32 continues to rotate, the second magnet 64 gradually moves away from the first magnet 63. At this time, the restoring force generated by the restoring member 62 pushes the blocking block 61 to move and block the material falling port 311, so that the dried soybeans are divided into multiple batches and gradually fall.

[0051] Further, with reference to Figure 7 and Figure 8The inner cylinder 1 is further provided with an inclined receiving plate 15 fixed below the sealing base 5 and spaced a distance from the sealing base 5. The lower end of the receiving plate 15 is spaced from the inner wall of the inner cylinder 1 to form a gap for the soybeans to fall. The bottom of the receiving plate 15 is fixed with an air duct 16 which can also be connected to a hot air source. The air duct 16 is provided with a plurality of upward air outlets 161 which are spaced and all penetrate the receiving plate 15 so that the air duct 16 can spray hot air upward through the air outlets 161.

[0052] The hot air blown from the air duct 16 is downward, and the falling soybeans move in the opposite direction of the air flow, so that the hot air can blow the soybeans from bottom to top, which is better for drying the soybeans. The upwardly sprayed hot air can also buffer the falling soybeans, reduce the falling speed of the soybeans, effectively reduce the impact of the falling soybeans, avoid damage to the soybeans, and thus maintain the integrity of the soybeans. The upwardly sprayed hot air can also reduce the falling speed of the soybeans, prolong the falling time of the soybeans, and thus prolong the drying time of the soybeans. Since the material falling port 311 is opened intermittently, only a small part of the soybeans in the outer circle can successfully fall out of the material falling port 311 when the material falling port 311 is opened, so that the soybeans can be batched and dropped one by one, and the soybeans can be dried again by the hot air during the falling process, so that the soybeans can be dried more thoroughly, and the drying effect of the soybeans can be greatly improved.

[0053] Further, the inner diameter of the outer cylinder 2 is greater than the outer diameter of the inner cylinder 1, so that an annular heat exchange channel 7 is formed between the outer cylinder 2 and the inner cylinder 1. The heat exchange channel 7 is provided with heat exchange pipes 71 made of metal materials with good heat conductivity, such as iron or aluminum. The bottom of the heat exchange channel 7 is connected to the outside, so that the dried air flow can be discharged. The heat exchange pipes 71 are spirally arranged outside the inner cylinder 1 between the air outlet holes 14 and the receiving plate 15. One end of the heat exchange pipes 71 is connected to an air source such as an air duct, and the other end of the heat exchange pipes 71 is connected to the heating cavity 51. The heat exchange pipes 71 can introduce external air flow into the heating cavity 51. The heat exchange pipes 71 are spirally arranged from top to bottom with gradually increasing diameters. The hot air flow after drying the soybeans enters the heat exchange channel 7 from the air outlet holes 14 and moves downward. The hot air flow contacts the outer wall of the heat exchange pipes 71 during the downward movement, and the hot air flow can preheat the fresh air flow in the heat exchange pipes 71 to increase the temperature of the fresh air flow, thereby reducing energy consumption. In other embodiments of the present application, the length of the heat exchange pipes 71 can be increased or decreased according to actual conditions, and heat exchange fins can be further provided on the outer surface of the heat exchange pipes 71 to further improve the heat exchange efficiency.

[0054] Further, the inner cylinder 1 is provided with an air inlet hole 17 on the side wall below the receiving plate 15, and a plurality of cooling plates 18 are fixed in the inner cylinder 1. In the embodiment, three cooling plates 18 are provided. All the cooling plates 18 are arranged below the receiving plate 15, and the three cooling plates 18 are arranged in an inclined manner with a gap therebetween. The adjacent two cooling plates 18 are arranged in opposite directions, and the lower end of each cooling plate 18 is spaced from the inner wall of the inner cylinder 1. The cooling plates 18 are provided with through holes. The soybeans falling from the receiving plate will continue to fall along the inclined cooling plates 18, and the lowermost cooling plate 18 is provided with a receiving box 8 for receiving the dried soybeans. The receiving box 8 is slidingly connected to the inner cylinder 1 and the outer cylinder 2, so that the receiving box 8 can be pulled out when full to be replaced or discharged.

[0055] The hot air flow will contact the heat exchange pipe 71 during downward movement. Since the heat exchange pipe 71 is internally connected to the new air with a lower temperature, the hot air flow with a higher temperature and the new air with a lower temperature will complete heat exchange through the heat exchange pipe 71, so that the temperature of the hot air flow will gradually decrease. The air flow after temperature drop moves downward and reenters the bottom of the inner cylinder 1 from the air inlet hole 17. Since the temperature of the dried soybeans will rise, the air flow after temperature drop can cool the dried soybeans when the soybeans fall along the cooling plates 18, so that the dried soybeans can be cooled to room temperature to facilitate subsequent processing of the soybeans.

[0056] The implementation principle of the agricultural soybean drying treatment equipment in the embodiment is that the center guide rod 4 and the plurality of air guide rods 13 are inserted into the stacked soybeans to dry the soybeans in the stacked soybeans, so that the soybeans in the interior are not dried completely. The air guide rods 13 rotate with the inner ring layer 32, and the rotating air guide rods 13 can continuously stir the stacked soybeans, so that the hot air flow can uniformly dry the soybeans from all directions, further improving the drying effect of the soybeans. The blocking block 61 intermittently opens the discharge port 311 during rotation of the inner ring layer 32, so that the dried soybeans are discharged in batches. The fallen soybeans are dried again by the hot air flow blown upward by the air inlet pipe 16, thereby improving the drying effect of the soybeans.

[0057] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application. Any equivalent changes made according to the structure, shape and principle of the present application should be covered by the protection scope of the present application.

Claims

1. An agricultural soybean drying treatment apparatus, characterized by: Comprising The inner cylinder is vertically placed, and the side wall of the upper part of the inner cylinder is provided with an air outlet through hole, and the top of the inner cylinder is provided with a feeding port; The supporting block is coaxial with the inner cylinder and is vertically and slidingly connected to the inner part of the inner cylinder, the side wall of the supporting block is tightly attached to the inner wall of the inner cylinder, and the supporting block is used for supporting the soybeans to be dried; The air guide rod is provided with a plurality of air guide rods, the air guide rods are arrayed around the axis of the inner cylinder, the side wall of each air guide rod is provided with a plurality of air injection holes, all the air guide rods are vertically and penetratingly arranged in the supporting block, and one end of the bottom of each air guide rod is used for connecting an external air source; The auxiliary air blowing assembly is located below the supporting block and can blow air upward; The supporting block is provided with an opening and closing assembly near the edge position, the opening and closing assembly can be intermittently opened when the supporting block rises, so as to allow the soybeans on the supporting block to fall; The supporting block comprises an outer ring layer and an inner ring layer, the inner ring layer is coaxially and rotatingly 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 cylinder, the top surface of the inner ring layer is a conical surface protruding upward, and is provided with a spiral rib, the spiral rib is spirally arranged around the axis of the inner cylinder, the inner ring layer is vertically and penetratingly provided with a through hole, and the inner part of the inner cylinder is provided with a driving assembly, when the supporting block rises as a whole, the driving assembly drives the inner ring layer to rotate.

2. The agricultural soybean drying processing apparatus of claim 1, wherein: The driving assembly comprises a center guide rod, the center guide rod penetrates through the inner ring layer and is fixed coaxially 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 slidingly connected to the spiral groove, the side wall of the center guide rod is provided with an air injection hole, and one end of the bottom of the center guide rod is used for connecting an external air source.

3. The agricultural soybean drying processing apparatus of claim 2, wherein: The bottom of the air guide rod is provided with a rotating disc, the bottom of the rotating disc is coaxially and rotatingly connected with a sealing base, a sealed heating cavity is formed between the rotating disc and the sealing base, a heating element is arranged in the heating cavity, the internal space of all the air guide rods is in communication with the heating cavity, and the heating cavity is used for connecting an external air source.

4. The agricultural soybean drying processing apparatus of claim 3, wherein: The opening and closing assembly comprises a plugging block, a restoring member, a first magnet and a second magnet, the plugging block is provided with at least one pair, each pair of plugging blocks is symmetrically distributed with respect to the axis of the inner cylinder, the plugging block is horizontally and slidingly connected to the inner ring layer in the radial direction of the inner cylinder, the position of the outer ring layer corresponding to the plugging block is vertically and penetratingly provided with a material falling port, the first magnet is corresponding to the plugging block and is fixed to the outer wall of the plugging block, the second magnet is corresponding to the first magnet and is embedded in the outer side wall of the inner ring layer, the first magnet and the second magnet are oppositely arranged with magnetic poles of different polarities, when the second magnet moves close to the first magnet, the plugging block opens the material falling port, and the restoring member is used for restoring the position of the plugging block to block the material falling port.

5. The agricultural soybean drying processing apparatus of claim 4, wherein: The outer part of the inner cylinder is coaxially covered with an outer cylinder, the inner diameter of the outer cylinder is greater than the outer diameter of the inner cylinder, the inner part of the outer cylinder is provided with a heat exchange pipe, the heat exchange pipe is spirally arranged outside the inner cylinder, one end of the heat exchange pipe is connected with an external air source, the other end of the heat exchange pipe is in communication with the heating cavity, the diameter of the heat exchange pipe gradually increases from top to bottom, and the heat exchange pipe is used for being distributed between the air outlet through hole of the inner cylinder and the auxiliary air blowing assembly.

6. The agricultural soybean drying processing apparatus of claim 5, wherein: The auxiliary air blowing assembly comprises an inclined supporting plate, the supporting plate is arranged in the inner part of the inner cylinder, a gap is left between the lower end of the supporting plate and the inner cylinder, the bottom of the supporting plate is provided with an air guide pipe for connecting an external air source, the air guide pipe is provided with a plurality of vertically upward air outlets, the air outlets of the air guide pipe are spaced apart and all pass through the supporting plate upward.

7. The agricultural soybean drying processing apparatus of claim 6, wherein: The inner cylinder is provided with air inlet through holes on the side wall below the receiving plate, and a plurality of cooling plates are arranged in the inner cylinder, each of which is arranged below the receiving plate, and the plurality of cooling plates are arranged in an up-down interval and in an inclined manner, the inclination directions of two adjacent cooling plates are opposite, and the lower end of each cooling plate is spaced from the inner wall of the inner cylinder, and all the cooling plates are provided with through holes.

8. The agricultural soybean drying processing apparatus of claim 1, wherein: The inner wall of the inner cylinder below the air outlet through hole is provided with a limiting block, the outer ring layer can abut against the limiting block, the bottom of the limiting block is provided with a jacking piece for driving the supporting block to vertically slide, and the top surface of the limiting block is provided with a contact switch, when the bottom surface of the outer ring layer contacts the contact switch, the jacking piece drives the supporting block to rise.

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