Grain drying device

Abstract

The utility model relates to a grain drying device which comprises a drying box, a dust collecting mechanism and a heat exchange mechanism, a hot air piece is arranged on one side of the drying box and used for conveying hot air flow into the drying box to dry grain, an exhaust port is formed in the top of a barrel, and one end of a dust collecting barrel coaxially penetrates into the barrel. A dust collecting cavity and a reverse blowing cavity located above the dust collecting cavity are formed in the dust collecting barrel, a plurality of cloth bag barrels communicated with the reverse blowing cavity are arranged in the dust collecting cavity, a plurality of guide pipes are arranged in the barrel body in the height direction of the barrel body and communicated with the reverse blowing cavity, and the dust collecting cavity is communicated with the drying box through an air exhaust part; the cylinder is provided with an air inlet end and an air outlet end which are communicated with the heat exchange piece, and the air outlet end is communicated with the drying box through the air draft piece. The problems that hot air flow in the drying device is directly discharged after drying grains, dust in the hot air flow influences the environment, and heat in the hot air flow cannot be repeatedly used are solved.

Description

Technical Field

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

[0002] In traditional grain processing plants, grain harvested by combine harvesters is transported back to grain processing plants.

[0003] Food storage warehouse, in order to facilitate the storage of grain, the factory will directly use drying equipment to dry the grain.

[0004] For example, in the patent document with the existing patent application number 202120782873.8, a grain dryer with high drying efficiency is disclosed, and specifically disclosed to include a bottom plate, a drying box is welded and installed on the top of the bottom plate, a top cover is fixedly installed on the top of the drying box, a slide is fixedly installed inside the drying box, a discharge end is opened on one side wall of the drying box, a receiving box is placed on the right side of the drying box on the top of the bottom plate, a heating mesh is welded and installed on the inner walls on both sides of the drying box, and a storage box is placed on the left side of the drying box on the top of the bottom plate; the grain is dried by the above scheme, and the hot air flow heated by the heating mesh is directly discharged after drying the grain. The dust in the hot air flow will not only affect the environment, but the heat in the hot air flow cannot be reused, which may easily cause waste of resources. Utility Model Content

[0005] The purpose of the utility model is to overcome the above technical deficiencies and provide a grain drying device to solve the problem in the prior art that the hot air flow in the drying device directly discharges the grain after drying, the dust in the hot air flow not only affects the environment, but also the heat in the hot air flow cannot be reused.

[0006] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a grain drying device, comprising a drying box, a dust collecting mechanism and a heat exchanging mechanism, a hot air component is provided on one side of the drying box, the hot air component is used to convey a hot air flow into the drying box to dry the grain, the dust collecting mechanism comprises a cylinder, a dust collecting cylinder and a duct, the top of the cylinder is provided with an exhaust port, one end of the dust collecting cylinder is coaxially penetrated in the cylinder, the interior of the dust collecting cylinder is provided with a dust collecting chamber and a back-blowing chamber located above the dust collecting chamber, a plurality of bag cylinders connected with the back-blowing chamber are provided in the dust collecting chamber, a plurality of ducts are provided in the cylinder along the height direction of the cylinder and are connected with the back-blowing chamber, the dust collecting chamber is connected with the drying box via an exhaust component, the heat exchanging mechanism comprises a heat exchanging component provided in the cylinder, an air inlet end and an air outlet end respectively connected with the heat exchanging component are provided on the cylinder, and the air outlet end is connected with the drying box via an exhaust component.

[0008] In some embodiments, a first conveyor is provided in the drying box, and a plurality of second conveyors are stacked and staggered above the first conveyor in the drying box, and one end of the first conveyor is connected to a discharge port on one side of the drying box, and the second conveyor is connected to a feed port at the top of the drying box.

[0009] In some embodiments, the hot air component includes a partition fixed in the drying box and located below the first transmitter, the partition divides the interior of the drying box into a drying chamber and a heating chamber, and the heating chamber is connected to the drying chamber via multiple air holes on the partition, the first transmitter and multiple second transmitters are all located in the drying chamber, a heating core is provided in the heating chamber, and the heating chamber is connected to the fan.

[0010] In some embodiments, a plurality of dust hoods are spaced apart on the top of the drying box, and the plurality of dust hoods are connected to the dust collecting chamber via an exhaust member.

[0011] In some embodiments, the dust collecting mechanism also includes a back-blowing component, which includes a high-pressure gas storage tank, a ventilation pipe and a high-pressure nozzle fixed to the outside of the cylinder body, one end of the ventilation pipe is connected to the air outlet of the pressure gas storage tank via a pulse valve, and the other end of the ventilation pipe extends into the back-blowing chamber, and the ventilation pipe is provided with a high-pressure nozzle corresponding to each of the bag tubes.

[0012] In some embodiments, the heat exchange component includes two annular blocks and heat exchange tubes. The two annular blocks are fixedly arranged in the cylinder at intervals, and an annular space is formed between the annular blocks and the inner wall of the cylinder. The two annular spaces are connected via multiple heat exchange tubes, and the air inlet end and the air outlet end are respectively connected to the two annular spaces.

[0013] In some embodiments, the outer wall of the cylinder is provided with a thermal insulation cotton layer.

[0014] In some embodiments, the other end of the dust collecting cylinder is provided with a dust discharge port connected to the dust collecting cavity.

[0015] In some embodiments, the length of the first transmitter is greater than the length of the second transmitter.

[0016] In some embodiments, a plurality of temperature sensors are disposed in the drying box.

[0017] Compared with the prior art, the utility model provides a grain drying device, in which an exhaust port is provided through the top of a cylinder, one end of a dust collecting cylinder is coaxially penetrated in the cylinder, a dust collecting chamber and a back-blowing chamber located above the dust collecting chamber are provided inside the dust collecting cylinder, a plurality of bag tubes connected with the back-blowing chamber are provided in the dust collecting chamber, a plurality of ducts are provided in the cylinder along the height direction of the cylinder and are connected with the back-blowing chamber, the dust collecting chamber is connected with a drying box via an exhaust member, the bag tubes can effectively absorb dust in the hot air flow, and at the same time, a heat exchange member is provided in the cylinder, an air inlet end and an air outlet end respectively connected with the heat exchange member are provided on the cylinder, and the air outlet end is connected with the drying box via an exhaust member, and the external air flow enters the heat exchange member to perform heat exchange with the hot air flow, the heat exchange member can effectively recycle part of the heat in the hot air flow, thereby saving energy and reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a grain drying device provided by the utility model;

[0019] Figure 2 It is a schematic diagram of the connection between the dust collecting mechanism and the heat exchanging mechanism of the utility model;

[0020] Figure 3 yes Figure 2 A is an enlarged schematic diagram;

[0021] Figure 4 It is a structural schematic diagram of the heat exchange component of the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] See also Figures 1 to 4 The utility model provides a grain drying device. The grain drying device dries grains through hot air flow, absorbs dust in the hot air flow, and recycles heat discharged from the hot air flow, thereby saving energy and reducing energy consumption.

[0024] In this specific embodiment, a grain drying device includes a drying box 1, a dust collecting mechanism 2 and a heat exchange mechanism 3. A hot air component 10 is provided on one side of the drying box 1. The hot air component 10 is used to transport a hot air flow into the drying box 1 to dry the grain. The dust collecting mechanism 2 includes a cylinder 21, a dust collecting cylinder 22 and a conduit 23. An exhaust port 211 is provided on the top of the cylinder 21. One end of the dust collecting cylinder 22 is coaxially penetrated in the cylinder 21. A dust collecting chamber 221 and a back-blowing chamber 22 located above the dust collecting chamber 221 are provided inside the dust collecting cylinder 22. 2. A plurality of bag tubes 223 communicating with the back-blowing chamber 222 are provided in the dust collecting chamber 221. A plurality of the conduits 23 are provided in the cylinder 21 along the height direction of the cylinder 21 and are communicated with the back-blowing chamber 222. The dust collecting chamber 221 is communicated with the drying box 1 via an exhaust member. The heat exchange mechanism 3 includes a heat exchange member 31 provided in the cylinder 21. An air inlet end 212 and an air outlet end 213 respectively communicated with the heat exchange member 31 are provided on the cylinder 21, and the air outlet end 213 is communicated with the drying box 1 via an exhaust member.

[0025] In actual use, the grain is transported to the drying box 1 for heating and drying. At the same time, the vacuum element draws the hot air flow in the drying box 1 into the dust collecting chamber 221. The multiple bag tubes 223 can effectively absorb the dust in the hot air flow. The hot air flow is transported to the cylinder 21 through the duct 23, and the external air flow enters the heat exchange element 31 from the air inlet end 212 through the vacuum element. The hot air flow can exchange heat with the external air flow in the heat exchange element 31, and the heated external air flow is transported to the drying box 1 for recycling, which can reduce heat consumption.

[0026] It should be noted that the drying box 1 is not limited to a specific structure, as long as it can dry the grain through hot air flow, no further details are given here. In this specific embodiment, a first conveyor 11 is provided in the drying box 1, and a plurality of second conveyors 12 are stacked and staggered above the first conveyor 11 in the drying box 1, and one end of the first conveyor 11 is connected to a discharge port 13 on one side of the drying box 1, and the second conveyor 12 is connected to a feed port 14 at the top of the drying box 1.

[0027] Specifically, the multiple second conveyors 12 and the first conveyor 11 are all belt conveyors, and the conveying directions of two adjacent second conveyors 12 are opposite, the conveying directions of the first conveyor 11 and the second conveyor 12 closest to the top are opposite, and the conveying directions of the multiple second conveyors 12 and the first conveyor 11 are parallel to the horizontal ground.

[0028] It should be noted that the length of the first conveyor 11 is greater than the length of the second conveyor 12 , ensuring that the first conveyor 11 can unload the grain when conveying it to the discharge port 13 , so that the grain can be conveyed to the outside of the drying box 1 through the discharge port 13 .

[0029] In this specific embodiment, the hot air component 10 includes a partition 101 fixed in the drying box 1 and located below the first transmitter 11, the partition 101 divides the interior of the drying box 1 into a drying chamber and a heating chamber, and the heating chamber is connected to the drying chamber via multiple air holes on the partition 101, the first transmitter 11 and multiple second transmitters 12 are all located in the drying chamber, a heating cell 102 is provided in the heating chamber, and the heating chamber is connected to a fan 103.

[0030] It should be noted that the airflow is transported to the heating chamber by the fan 103, the heating cell 102 can heat the airflow in the heating chamber, and the heated airflow can be evenly dispersed into the drying chamber through multiple air vents, which has a better drying effect on the grain.

[0031] In this specific embodiment, a plurality of dust hoods 15 are arranged at intervals on the top of the drying box 1, and the plurality of dust hoods 15 are connected to the dust collecting chamber 221 via an exhaust member. The hot air flow in the drying box 1 is sucked into the dust collecting chamber 221 through the dust hood 15.

[0032] In this specific embodiment, the dust collecting mechanism 2 also includes a back-blowing component 24, which includes a high-pressure gas storage tank 241 fixedly mounted on the outside of the cylinder 21, a ventilation pipe 242 and a high-pressure nozzle 243, one end of the ventilation pipe 242 is connected to the gas outlet of the high-pressure gas storage tank 241 via a pulse valve, and the other end of the ventilation pipe 242 extends into the back-blowing chamber 222, and the ventilation pipe 242 is provided with a high-pressure nozzle 243 corresponding to each of the bag tubes 223.

[0033] It should be noted that by opening the pulse valve, the high-pressure gas in the high-pressure gas storage tank 241 can be output through multiple high-pressure nozzles 243, and the high-pressure gas can shake off the dust adsorbed on the bag tube 223. Specifically, the other end of the dust collecting tube 22 is provided with an ash discharge port 220 connected to the dust collecting chamber 221, and the ash discharge port 220 is provided with a cover plate for opening the ash discharge port 220, and the dust at the bottom of the dust collecting tube 22 can be discharged by opening the cover plate.

[0034] In this specific embodiment, the heat exchange component 31 includes two annular blocks 311 and a heat exchange tube 312. The two annular blocks 311 are fixedly arranged in the cylinder 21 at intervals, and an annular space is formed between the annular blocks 311 and the inner wall of the cylinder 21. The two annular spaces are connected via multiple heat exchange tubes 312, and the air inlet end 212 and the air outlet end 213 are respectively connected to the two annular spaces.

[0035] In other embodiments, a plurality of heat exchange fins are arranged at intervals along the length direction of the heat exchange tube 312. The heat exchange fins can be arranged to increase the contact area between the heat exchange tube 312 and the hot air flow, and the heat exchange effect is better. In one embodiment, in order to prevent the heat in the hot air flow from dissipating quickly, specifically, the outer wall of the cylinder 21 is provided with a heat insulation cotton layer.

[0036] Based on the above solution, a plurality of temperature sensors 4 are arranged in the drying box 1. The temperature sensor 4 can detect the temperature of the hot air flow in the drying box 1 to prevent the hot air flow from being too high in temperature, steaming the grain and reducing the drying effect of the grain.

[0037] The effective effects are:

[0038] Compared with the prior art, the utility model provides a grain drying device, in which an exhaust port is provided through the top of a cylinder, one end of a dust collecting cylinder is coaxially penetrated in the cylinder, a dust collecting chamber and a back-blowing chamber located above the dust collecting chamber are provided inside the dust collecting cylinder, a plurality of bag tubes connected with the back-blowing chamber are provided in the dust collecting chamber, a plurality of ducts are provided in the cylinder along the height direction of the cylinder and are connected with the back-blowing chamber, the dust collecting chamber is connected with a drying box via an exhaust member, the bag tubes can effectively absorb dust in the hot air flow, and at the same time, a heat exchange member is provided in the cylinder, an air inlet end and an air outlet end respectively connected with the heat exchange member are provided on the cylinder, and the air outlet end is connected with the drying box via an exhaust member, and the external air flow enters the heat exchange member to perform heat exchange with the hot air flow, the heat exchange member can effectively recycle part of the heat in the hot air flow, thereby saving energy and reducing energy consumption.

[0039] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A grain drying device, comprising a drying box, a dust collecting mechanism and a heat exchange mechanism, wherein a hot air component is provided on one side of the drying box, and the hot air component is used to convey a hot air flow into the drying box to dry the grain, the dust collecting mechanism comprises a cylinder, a dust collecting cylinder and a conduit, the top of the cylinder is provided with an exhaust port, and one end of the dust collecting cylinder is coaxially penetrated in the cylinder, characterized in that: A dust collecting chamber and a back-blowing chamber located above the dust collecting chamber are provided inside the dust collecting chamber, a plurality of bag tubes connected to the back-blowing chamber are provided in the dust collecting chamber, a plurality of ducts are provided in the cylinder along the height direction of the cylinder and are connected to the back-blowing chamber, the dust collecting chamber is connected to the drying box via an exhaust member, the heat exchange mechanism includes a heat exchange member provided in the cylinder, an air inlet end and an air outlet end respectively connected to the heat exchange member are provided on the cylinder, and the air outlet end is connected to the drying box via an exhaust member.

2. A grain drying device according to claim 1, characterized in that: A first conveyor is provided in the drying box, and a plurality of second conveyors are stacked and staggered above the first conveyor in the drying box, and one end of the first conveyor is connected to a discharge port on one side of the drying box, and the second conveyor is connected to a feed port at the top of the drying box.

3. A grain drying device according to claim 2, characterized in that: The hot air component includes a partition fixedly arranged in the drying box and located below the first conveyor, The partition divides the interior of the drying box into a drying chamber and a heating chamber, and the heating chamber is connected to the drying chamber via multiple ventilation holes on the partition. The first transmitter and multiple second transmitters are all located in the drying chamber. A heating core is provided in the heating chamber, and the heating chamber is connected to a fan.

4. A grain drying device according to claim 1, characterized in that: A plurality of dust hoods are arranged at intervals on the top of the drying box, and the plurality of dust hoods are connected with the dust collecting chamber via an exhaust member.

5. A grain drying device according to claim 1, characterized in that: The dust collecting mechanism also includes a back-blowing component, which includes a high-pressure gas storage tank, a ventilation pipe and a high-pressure nozzle fixedly mounted on the outside of the cylinder body. One end of the ventilation pipe is connected to the gas outlet of the high-pressure gas storage tank via a pulse valve, and the other end of the ventilation pipe extends into the back-blowing chamber, and the ventilation pipe is provided with a high-pressure nozzle corresponding to each of the bag tubes.

6. A grain drying device according to claim 1, characterized in that: The heat exchange component includes two annular blocks and heat exchange tubes. The two annular blocks are fixedly arranged in the cylinder at intervals, and an annular space is formed between the annular blocks and the inner wall of the cylinder. The two annular spaces are connected via multiple heat exchange tubes, and the air inlet end and the air outlet end are respectively connected to the two annular spaces.

7. A grain drying device according to claim 1, characterized in that: The outer wall of the cylinder is provided with a heat-insulating cotton layer.

8. A grain drying device according to claim 1, characterized in that: The other end of the dust collecting cylinder is provided with a dust discharge port communicated with the dust collecting cavity.

9. A grain drying device according to claim 2, characterized in that: The length of the first transmitter is greater than the length of the second transmitter.

10. A grain drying device according to claim 1, characterized in that: A plurality of temperature sensors are arranged in the drying box.

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