Soybean seed drying device

Abstract

The utility model relates to a soybean seed drying device, in particular to the technical field of seed production equipment. The soybean seed drying device comprises the drying furnace, the conveying belt, the preheating mechanism, the heating lamp, the moisture exhaust port, the moisture exhaust fan, the air return pipe, the induced draft fan, the air outlet cover and the fan, the soybean seeds in the first batch are pre-dried by arranging the preheating mechanism, and the situation that the surfaces of the seeds are hardened due to the fact that capillary structures in the seeds are damaged when the seeds are directly dried at high temperature is avoided. The dried soybean seeds enter a spreading and cooling area to be cooled, so that the seed volume is expanded or the endosperm becomes loose and soft, and the seed vigor is lost; and hot air in the cooling process is discharged under the action of the dehumidifying fan, is dried by the drying layer, enters the air return pipe and is discharged into the preheating cylinder under the action of the induced draft fan, so that the next batch of soybean seeds are preheated before being dried, normal proceeding of subsequent procedures can be ensured, heat recycling is realized, and energy conservation and emission reduction are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of seed production equipment, in particular to a soybean seed drying device. Background Art

[0002] In the production process of soybean seeds, it is necessary to dry the soybean seeds. The existing drying device does not pre-dry the seeds during the drying process but directly performs high-temperature drying on the seeds. If high-temperature rapid one-time drying is adopted, the capillary structure in the seeds will be destroyed, causing the seed surface to harden, and the internal moisture cannot evaporate to the surface through the capillaries. In this case, the seeds continue to be in high temperature, which will cause the seed volume to expand or the endosperm to become soft, and the seed vitality will be lost. In addition, the soybean seeds cannot be cooled in time after drying, which affects the subsequent process. Utility Model Content

[0003] (1) Technical solution

[0004] In order to solve the above technical problems, the utility model provides a soybean seed drying device, including a drying furnace, a conveyor belt, a preheating mechanism, a heating lamp, a dehumidification port, a dehumidification fan, a return air duct, an induced draft fan, an air outlet hood, and a fan. The drying furnace is divided into a preheating zone, a drying zone, and a cooling zone from one end to the other end. The conveyor belt runs through the preheating zone, the drying zone, and the cooling zone transversely and divides the preheating zone, the drying zone, and the cooling zone into two parts respectively. The preheating mechanism is provided in the preheating zone above the conveyor belt. The heating lamps are provided in the drying areas above and below the conveyor belt, the cooling area above the conveyor belt is provided with more than two dehumidification ports, the dehumidification ports are provided with dehumidification fans, the upper ends of the dehumidification ports are communicated with the return air duct, the return air duct is connected to one end of the induced draft fan, the other end of the induced draft fan is connected to the preheating mechanism through a pipeline, the air outlet hood is provided in the cooling area below the conveyor belt, the air outlet of the air outlet hood is arranged upward, and the fan is connected to the air inlet of the air outlet hood through an air inlet pipe.

[0005] Preferably, the preheating mechanism includes a preheating cylinder, an air-distributing fan, and a drying channel. The preheating cylinder is arranged in the preheating zone, and the drying channel is spirally wound on the outer wall of the preheating cylinder in the vertical direction. One end of the drying channel is a feed port, and the other end of the drying channel is a discharge port. The feed port extends to the outside of the drying furnace, and the discharge port is located above the feed end of the conveyor belt. The air-distributing fan and the heating tube are installed at intervals from top to bottom in the preheating cylinder, and air outlet holes are evenly distributed on the outer wall of the preheating cylinder. The upper end of the preheating cylinder is connected to the other end of the induced draft fan through a pipe.

[0006] Preferably, there are more than two air-distributing fans, which are evenly distributed along the vertical direction of the preheating cylinder.

[0007] Preferably, an air distribution plate is provided at the air outlet of the air outlet cover.

[0008] Preferably, the air balancing plate is provided with evenly distributed air balancing holes.

[0009] Preferably, a drying layer is provided in the moisture discharge port.

[0010] (3) Beneficial effects

[0011] The utility model provides a soybean seed drying device. Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The preheating mechanism is provided to pre-dry the first batch of soybean seeds, thus avoiding direct high-temperature drying of the seeds, which will destroy the capillary structure in the seeds, cause the seed surface to harden, expand the seed volume or make the endosperm soft, and lose the seed vitality.

[0013] 2. The dried soybean seeds enter the cooling area, and the fan is started to generate wind that is blown out evenly from the air outlet hood to cool the soybean seeds. The hot air in the cooling process is discharged from the dehumidification fan and enters the return air duct after drying in the drying layer and is discharged into the preheating cylinder under the action of the induced draft fan to preheat the next batch of soybean seeds before drying. This can not only ensure the normal progress of subsequent processes, but also realize heat recovery and utilization, saving energy and reducing emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 It is a structural schematic diagram of the preheating mechanism of the utility model.

[0016] The accompanying drawings are marked as: 1-drying furnace, 2-conveyor belt, 3-preheating zone, 4-drying zone, 5-cooling zone, 7-heating lamp, 6-preheating mechanism, 61-preheating cylinder, 611-air outlet, 62-air uniformity fan, 63-drying channel, 631-feeding port, 632-discharging port, 64-heating pipe, 8-dehumidification port, 81-drying layer, 9-dehumidification fan, 10-return air duct, 11-induced draft fan, 12-air outlet hood, 121-air uniformity plate, 13-air inlet duct, 14-fan. DETAILED DESCRIPTION

[0017] The utility model is further described in conjunction with the accompanying drawings and embodiments.

[0018] like Figure 1 , 2As shown, a soybean seed drying device described in the utility model comprises a drying furnace 1, a conveyor belt 2, a preheating mechanism 6, a heating lamp 7, a dehumidification port 8, a dehumidification fan 9, a return air duct 10, an induced draft fan 11, an air outlet hood 12, and a fan 14. The drying furnace 1 is divided into a preheating zone 3, a drying zone 4, and a cooling zone 5 from one end to the other end. The conveyor belt 2 transversely penetrates the preheating zone 3, the drying zone 4, and the cooling zone 5 and divides the preheating zone 3, the drying zone 4, and the cooling zone 5 into two parts. The preheating mechanism 6 is arranged in the preheating zone 3 above the conveyor belt 2. The heating lamp 7 is provided in the drying area 4 above and below the conveyor belt 2, more than two dehumidification ports 8 are provided in the cooling area 5 above the conveyor belt 2, and the dehumidification fan 9 is provided in the dehumidification port 8. The upper end of the dehumidification port 8 is communicated with the return air duct 10, and the return air duct 10 is connected to one end of the induced draft fan 11, and the other end of the induced draft fan 11 is connected to the preheating mechanism 6 through a pipeline. The air outlet hood 12 is provided in the cooling area 5 below the conveyor belt 2, and the air outlet of the air outlet hood 12 is arranged upward, and the fan 14 is connected to the air inlet of the air outlet hood 12 through the air inlet pipe 13.

[0019] The preheating mechanism 6 includes a preheating cylinder 61, an air-distributing fan 62, and a drying channel 63. The preheating zone 3 is provided with the preheating cylinder 61. The outer wall of the preheating cylinder 61 is spirally wound with the drying channel 63 in the vertical direction. One end of the drying channel 63 is an inlet 631, and the other end of the drying channel 63 is an outlet 632. The inlet 631 extends to the outside of the drying furnace 1, and the outlet 632 is located above the inlet end of the conveyor belt 2. The air-distributing fan 62 and the heating tube 64 are installed in the preheating cylinder 61 from top to bottom. The outer wall of the preheating cylinder 61 is evenly distributed with air outlet holes 131. The upper end of the preheating cylinder 61 is connected to the other end of the induced draft fan 11 through a pipeline. There are more than two air-distributing fans 62 and they are evenly distributed along the vertical direction of the preheating cylinder 61.

[0020] An air distribution plate 121 is provided at the air outlet of the air outlet cover 12 , and air distribution holes are evenly distributed on the air distribution plate 121 . A drying layer 81 is provided in the moisture removal port 8 .

[0021] In actual work, the first batch of soybean seeds to be dried falls into the drying channel 63 through the feed port 631, generates heat through the heating tube 64, and the wind generated by the rotation of the uniform air fan 14 absorbs the heat generated by the heating tube 64 and converts it into hot air, which is then uniformly discharged from the air outlet 611 to achieve pre-drying of the first batch of soybean seeds. The first batch of pre-dried soybean seeds falls onto the conveyor belt 2, and then the drive motor is started to drive the conveyor belt 2 to achieve conveying movement, and the drying is achieved through the heating lamp 7 in the drying area 4. The dried soybean seeds enter the cooling area 5, and the fan 14 is started to generate wind that is uniformly blown out from the air outlet hood 12 to achieve cooling of the soybean seeds. The hot air in the cooling process is discharged from the exhaust fan 9 and dried through the drying layer 81, and then enters the return air duct 10 and is discharged to the preheating cylinder 61 under the action of the induced draft fan 11 to achieve preheating before drying the next batch of soybean seeds. The contents not described in detail in this specification belong to the prior art known to professionals in this field.

[0022] The above-mentioned embodiments only express the preferred implementation of the utility model, and the description is relatively specific and detailed, but the utility model is not limited to these embodiments. It should be pointed out that for ordinary technicians in this field. Under the premise of not departing from the purpose of the utility model, any improvement made shall fall within the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A soybean seed drying device, characterized in that: The invention comprises a drying furnace (1), a conveyor belt (2), a preheating mechanism (6), a heating lamp (7), a dehumidification port (8), a dehumidification fan (9), a return air duct (10), an induced draft fan (11), an air outlet hood (12), and a fan (14). The drying furnace (1) is divided into a preheating zone (3), a drying zone (4), and a cooling zone (5) from one end to the other. The conveyor belt (2) transversely penetrates the preheating zone (3), the drying zone (4), and the cooling zone (5) and divides the preheating zone (3), the drying zone (4), and the cooling zone (5) into two parts. The preheating mechanism (6) is provided in the preheating zone (3) above the conveyor belt (2). The conveyor belt (2) is provided with a preheating mechanism (6) above and below the conveyor belt (2). The heating lamp (7) is provided in each of the drying areas (4); the cooling area (5) above the conveyor belt (2) is provided with more than two dehumidification ports (8); the dehumidification port (8) is provided with a dehumidification fan (9); the upper end of the dehumidification port (8) is connected to the return air duct (10); the return air duct (10) is connected to one end of the induced draft fan (11); the other end of the induced draft fan (11) is connected to the preheating mechanism (6) through a pipeline; the air outlet hood (12) is provided in the cooling area (5) below the conveyor belt (2); the air outlet of the air outlet hood (12) is arranged upward; and the fan (14) is connected to the air inlet of the air outlet hood (12) through an air inlet duct (13).

2. A soybean seed drying device according to claim 1, characterized in that: The preheating mechanism (6) comprises a preheating cylinder (61), an air distribution fan (62), and a drying channel (63). The preheating zone (3) is provided with the preheating cylinder (61). The outer wall of the preheating cylinder (61) is spirally wound with the drying channel (63) in a vertical direction. One end of the drying channel (63) is an inlet (631), and the other end of the drying channel (63) is an outlet (632). The inlet (631) extends to the outside of the drying furnace (1), and the outlet (632) is located above the inlet end of the conveyor belt (2). The air distribution fan (62) and the heating pipe (64) are installed in the preheating cylinder (61) at intervals from top to bottom. The outer wall of the preheating cylinder (61) is evenly distributed with air outlet holes (131). The upper end of the preheating cylinder (61) is connected to the other end of the induced draft fan (11) through a pipeline.

3. A soybean seed drying device according to claim 2, characterized in that: There are more than two air-distributing fans (62) which are equidistantly distributed along the vertical direction of the preheating cylinder (61).

4. A soybean seed drying device according to claim 1, characterized in that: An air distribution plate (121) is provided at the air outlet of the air outlet cover (12).

5. A soybean seed drying device according to claim 4, characterized in that: The air balancing plate (121) is provided with air balancing holes evenly distributed thereon.

6. The soybean seed drying device according to claim 1, characterized in that: A drying layer (81) is provided in the moisture discharge port (8).

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