Efficient energy-saving drying device

Abstract

The invention relates to the technical field of drying machines, and particularly discloses an efficient energy-saving drying device which comprises a tank shell, a feeding part is arranged at the top of the tank shell, a discharging opening and an air inlet pipe are arranged at the bottom of the tank shell, a first partition plate and a second partition plate are arranged on the inner wall of the tank shell, and a first heating device and a second heating device are arranged on the tank shell. The first partition plate and the second partition plate are each fixedly provided with two ventilation pipes, and the first partition plate and the second partition plate are each fixedly provided with two first spiral guide plates. According to the efficient and energy-saving drying device, grains added into the upper drying chamber can move along the guide of the first spiral guide plate in the upper drying chamber, then enter the lower drying chamber through the first material leaking hole, continue to move along the guide of the first spiral guide plate in the lower drying chamber, and then enter the cooling chamber through the second material leaking hole to be cooled, so that the grains can be fully combined with air flow; and the grain drying uniformity is improved, the function of adding and discharging the grains at the same time is achieved, the breakage rate of the grains is reduced, and the quality of the grains is improved.

Description

Technical Field

[0001] The invention relates to the technical field of drying machines, and in particular to a high-efficiency and energy-saving drying device. Background Art

[0002] After grain is harvested, in order to facilitate storage and processing, excess moisture needs to be removed. The traditional way to remove moisture is to dry it in the sun, which is not only greatly affected by weather factors, but also time-consuming and inefficient. Existing technology usually uses grain dryers to remove moisture from grains, using hot air to heat and remove moisture from the grains.

[0003] A Chinese patent document with the announcement number CN212325288U discloses a grain drying box for grain storage, including a dryer and an air duct, and also a grain stirring and turning mechanism, one side of the dryer is fixedly installed with an air duct, and the end of the air duct away from the dryer is fixedly connected with the grain stirring and turning mechanism, and the grain stirring and turning mechanism includes a grain loading frame, a reduction motor, an output shaft, a sealing ring, an auxiliary bearing, a turning blade, a ventilation mesh plate, a grain loading port and a grain receiving port, and the central through hole on one side of the grain loading frame is connected with a reduction motor through the output shaft, and the central through hole on one side of the reduction motor is movably connected with the output shaft. This patent allows the grain to be dried in a stirring and turning state, ensures the uniformity of the grain being exposed to the wind, and avoids the situation where the wind force is difficult to penetrate into the grain pile and the drying efficiency is slow.

[0004] However, the above technical solution still has the following defects: The above-mentioned grain drying box adopts a grain loading frame to hold the grain at one time, and stirs the grain by rotating the turning blades. The dryer introduces hot air through the air duct to dry the grain. However, this method still causes the grains to pile up on each other, and the combination of grain and wind is not sufficient. Moreover, if the grain is added at one time, it needs to be discharged together after all the grains are dried, which is inconvenient to use and affects the drying efficiency. In addition, when the turning blades turn the grain, the grain is squeezed and damaged at a high rate, which reduces the quality of the grain. Summary of the invention

[0005] The present invention provides a high-efficiency and energy-saving drying device, aiming to solve the problems in the related art that grains are piled up in a grain drying box, grains are not fully combined with wind, and grains added at one time need to be discharged all at once after being dried, which is inconvenient to use; in addition, when the blades are turned over to turn the grains, the grains are squeezed and damaged at a high rate.

[0006] The high-efficiency and energy-saving drying device of the present invention comprises a tank shell, wherein the top of the tank shell is provided with a feeding portion, the bottom of the tank shell is provided with a discharge port and an air inlet pipe, the inner wall of the tank shell is provided with a partition plate 1 and a partition plate 2, the partition plate 1 and the partition plate 2 divide the tank shell into an upper drying chamber, a lower drying chamber and a cooling chamber, the partition plate 1 is provided with an air vent 1 and a material leakage hole 1, the partition plate 2 is provided with an air vent 2 and a material leakage hole 2, the tank shell is provided with a heating device 1 and a heating device 2, the heating device 1 The air inlet end and the air outlet end are respectively connected to the lower drying chamber and the air duct one, the air inlet end and the air outlet end of the heating device two are respectively connected to the cooling chamber and the air duct two, the partition one and the partition two are respectively fixed with two air pipes, and the two air pipes are respectively connected to the air duct one and the air duct two, each of the air pipes is provided with an air outlet hole, the partition one and the partition two are respectively fixed with two spiral guide plates one, and the two spiral guide plates one are respectively wound around the outside of the two air pipes.

[0007] When in use, the grain is added into the upper drying chamber through the feeding part, and air is supplied into the air inlet pipe at the same time, and the heating device 1 and the heating device 2 are started at the same time, so that the gas flows along the air inlet pipe, the cooling chamber, the heating device 2, the air duct 2, the air duct in the lower drying chamber, the lower drying chamber, the heating device 1, the air duct 1, the air duct in the upper drying chamber, the upper drying chamber and the feeding part in sequence. The grain entering the upper drying chamber falls onto the spiral guide plate 1 in the upper drying chamber and moves along the guide thereof, and finally enters the lower drying chamber through the leakage hole 1. The grain entering the lower drying chamber falls onto the spiral guide plate 1 in the lower drying chamber and moves along the guide thereof, and finally enters the cooling chamber through the leakage hole 2 for cooling, and is finally discharged from the discharge port, so that the grain can be fully combined with the airflow; during this period, the gas sucked into the cooling chamber through the air inlet pipe can cool the cooling chamber The grain in the drying chamber is fully air-cooled to reduce the temperature of the grain. The heating device 2 can extract and heat the gas in the cooling chamber, and the heated gas is then blown into the lower drying chamber through the ventilation duct 2 from the ventilation pipe in the lower drying chamber, so as to fully dry the grain entering the lower drying chamber. The heating device 1 can extract and reheat the gas in the lower drying chamber, and then blow it into the upper drying chamber through the ventilation duct 1 from the ventilation pipe in the upper drying chamber, so as to strengthen the drying treatment of the grain entering the upper drying chamber, effectively improving the uniformity of grain drying, and realizing the function of adding and discharging grain at the same time, improving the convenience of use, and then improving the drying efficiency. In addition, during the entire drying process, the grain is not squeezed by the components of the device, reducing the squeezing breakage rate of the grain, thereby improving the quality of the grain.

[0008] Preferably, each of the spiral guide plates is provided with a sieve hole.

[0009] The sieve holes can let out grains smaller than the sieve hole size. When the grains move along the guide of the spiral guide plate 1, the grains smaller than the sieve hole size can directly leak out from the sieve holes to reduce the movement stroke of a portion of the grains smaller than the sieve hole size, thereby avoiding excessive drying of the grains smaller than the sieve hole size and causing waste of heat energy.

[0010] Preferably, the spiral guide plate 1 is elastic and can be compressed and restored, and a driving mechanism for compressing the spiral guide plate 1 is provided on the ventilation pipe.

[0011] Preferably, the driving mechanism includes a rotating shaft and a guide plate, the rotating shaft is rotatably arranged on the inner wall of the ventilation pipe, a notched gear and an impeller are arranged on the rotating shaft, the guide plate is arranged on the inner wall of the ventilation pipe, the airflow through the ventilation pipe can be guided along the guide plate to one side of the impeller to blow the impeller to rotate in one direction, the teeth of the notched gear are meshed with a rack, a connecting rod is arranged on the rack, and the connecting rod is connected to the top of the spiral guide plate.

[0012] The gas introduced into the ventilation pipe will blow the impeller to rotate, and the impeller will drive the rotating shaft to rotate, and the rotation of the rotating shaft will drive the notched gear to rotate. The rotation of the notched gear drives the rack downward through its meshing with the rack, and the downward movement of the rack drives the top of the spiral guide plate 1 to move downward through the connecting rod to compress the spiral guide plate 1. When the notch part of the notched gear rotates to the tooth matching position of the rack, the teeth of the notched gear disengage from the teeth of the rack, and under the elastic force of the spiral guide plate 1, the spiral guide plate 1 is reset and the rack is reset through the connecting rod, thereby realizing the compression and release of the spiral guide plate 1, causing the spiral guide plate 1 to have a shaking effect to accelerate the movement of grain on the spiral guide plate 1.

[0013] Preferably, the high-efficiency energy-saving drying device further comprises a second auxiliary mechanism, wherein the second auxiliary mechanism is arranged in the cooling chamber, and the second auxiliary mechanism comprises a column arranged on a second partition, and a second spiral guide plate is arranged on the outer surface of the column.

[0014] The grain entering the cooling chamber from the leakage hole 2 can move along the spiral guide plate 2 and finally be discharged from the discharge port. The spiral guide plate 2 can increase the downward movement of the grain, thereby slowing down the downward movement speed of the grain. The cold air entering the cooling chamber can be fully combined with the grain entering the cooling chamber to increase the cooling time of the grain, thereby improving the cooling effect of the grain.

[0015] Preferably, the feeding part has a material storage part and an access part connected to the material storage part.

[0016] Preferably, the present high-efficiency and energy-saving drying device also includes a material control mechanism arranged on the tank shell, the material control mechanism includes a bottom plate arranged in the access portion, the bottom plate can be moved downward to the upper drying chamber, the bottom plate is fixed on a connecting rod, a connecting column is fixedly provided on the upper surface of the bottom plate, a top plate is fixedly provided on the connecting column, the top plate is located in the material storage portion, the top plate can be moved downward to be placed inside the access portion, and a feeding space is formed between the top plate and the bottom plate.

[0017] The grain in the storage part can enter the feeding space along the gap between the storage part and the top plate. When the spiral guide plate is compressed, the connecting rod moves downward and drives the material control mechanism to move downward synchronously. The top plate and the bottom plate are both placed in the access part. A certain amount of grain is obtained in the feeding space. As the material control mechanism continues to move downward, the bottom plate moves downward and enters the upper drying chamber. A gap is generated between the bottom plate and the upper drying chamber. The grain in the feeding space falls into the upper drying chamber along the gap generated between the bottom plate and the upper drying chamber. When the spiral guide plate is reset, the connecting rod moves upward and drives the material control mechanism to move upward synchronously. The bottom plate moves up and enters the access part. The top plate is reset and enters the storage part again. The grain in the storage part is then injected into the feeding space along the gap between the storage part and the top plate to achieve quantitative addition of grain and avoid grain accumulation caused by continuous entry of grain into the upper drying chamber.

[0018] Preferably, the distance between the top plate and the bottom plate is smaller than the height of the access portion.

[0019] Preferably, an exhaust hole is provided on the inlet portion, and the size of the exhaust hole is smaller than the size of the grain particles. A third induced draft fan is also provided on the outside of the tank shell, and the air inlet end of the third induced draft fan is connected to the exhaust hole.

[0020] Preferably, the heating device 1 includes a first natural gas furnace and a first induced draft fan, the air inlet end of the first induced draft fan is connected to the lower drying chamber, the air outlet end of the first induced draft fan is connected to the air duct 1 and a first heating pipe is arranged, and the heating end of the first natural gas furnace is connected to the first heating pipe.

[0021] The beneficial effects of the present invention are as follows: when in use, grains are added into the upper drying chamber through the feeding part, and air is supplied into the air inlet pipe at the same time, so that the gas flows in sequence along the air inlet pipe, the cooling chamber, the second heating device, the second air duct, the air duct in the lower drying chamber, the lower drying chamber, the first heating device, the first air duct, the air duct in the upper drying chamber, the upper drying chamber and the feeding part; the grains entering the upper drying chamber fall onto the first spiral guide plate in the upper drying chamber and move along the guide thereof, and finally enter the lower drying chamber through the first leakage hole; the grains entering the lower drying chamber fall onto the first spiral guide plate in the lower drying chamber and move along the guide thereof, and finally enter the cooling chamber through the second leakage hole for cooling, and finally are discharged from the discharge port, so that the grains can be fully combined with the air flow; during this period, the gas sucked into the cooling chamber through the air inlet pipe can The grain is fully air-cooled to reduce the temperature of the grain. The heating device 2 can extract the gas in the cooling chamber and heat it. The heated gas is then blown into the lower drying chamber from the ventilation pipe in the lower drying chamber through the air duct 2, so as to fully dry the grain entering the lower drying chamber. The heating device 1 can extract the gas in the lower drying chamber and reheat it. The gas is then blown into the upper drying chamber from the ventilation pipe in the upper drying chamber through the air duct 1, so as to strengthen the drying treatment of the grain entering the upper drying chamber, effectively improving the uniformity of grain drying, and realizing the function of adding and discharging grain at the same time, improving the convenience of use, and then improving the drying efficiency. In addition, during the entire drying process, the grain is not squeezed by the components of the device, reducing the breakage rate of the grain, thereby improving the quality of the grain. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a specific embodiment of the present invention.

[0023] Figure 2 It is a three-dimensional cross-sectional view of a specific embodiment of the present invention.

[0024] Figure 3 It is a three-dimensional cross-sectional view of a tank shell and a vent pipe according to a specific embodiment of the present invention.

[0025] Figure 4 It is a structural schematic diagram of a vent pipe and a spiral guide plate in a specific embodiment of the present invention.

[0026] Figure 5 It is a three-dimensional cross-sectional view of a ventilation tube according to a specific embodiment of the present invention.

[0027] Figure 6 It is a specific embodiment of the present invention Figure 5 Schematic diagram of the structure enlarged at point A in the middle.

[0028] Figure 7 It is a schematic diagram of the structure of the driving mechanism of a specific embodiment of the present invention.

[0029] Figure 8 It is a structural schematic diagram of auxiliary mechanism 2 in a specific embodiment of the present invention.

[0030] Fig. 9 It is a cross-sectional view of a material control mechanism according to a specific embodiment of the present invention.

[0031] Fig.10 It is a structural schematic diagram of a state in which the bottom plate of a specific embodiment of the present invention moves downward to the upper drying chamber.

[0032] Reference numerals: 10. Stand; 20. Processing tank; 21. Tank shell; 211. Feeding part; 2111. Storage part; 2112. Inlet part; 21121. Exhaust hole; 212. Discharge port; 22. Inlet pipe; 23. Partition 1; 231. Ventilation channel 1; 232. Leakage hole 1; 24. Partition 2; 241. Ventilation channel 2; 242. Leakage hole 2; 25. Upper drying chamber; 26. Lower drying chamber; 27. Cooling chamber; 28. Heating device 1; 29. ​​Add Thermal device 2; 30, auxiliary mechanism 1; 31, ventilation pipe; 311, air outlet; 32, spiral guide plate 1; 321, sieve hole; 33, driving mechanism; 331, rotating shaft; 332, guide plate; 333, notched gear; 334, impeller; 335, rack; 336, connecting rod; 40, auxiliary mechanism 2; 41, column; 42, spiral guide plate 2; 50, material control mechanism; 51, bottom plate; 52, connecting column; 53, top plate; 54, feeding space. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0034] like Figures 1 to 10 As shown, the high-efficiency energy-saving drying device of the present invention includes a frame 10, to which a processing tank 20 is fixedly connected, and an upper drying chamber 25, a lower drying chamber 26 and a cooling chamber 27 which are interconnected are arranged in sequence from top to bottom in the processing tank 20. The grain can be dried with hot air when passing through the upper drying chamber 25 and the lower drying chamber 26 in sequence, and can be air-cooled when passing through the cooling chamber 27. Auxiliary mechanisms 1 30 are arranged in the upper drying chamber 25 and the lower drying chamber 26, which can fully combine the grain with hot air. Auxiliary mechanisms 2 40 are arranged in the cooling chamber 27, which can fully combine the grain with cool air. A material control mechanism 50 is arranged in the processing tank 20, which can control the amount of grain added to the processing tank 20.

[0035] refer to Figures 1 to 3As shown, the processing tank 20 includes a tank shell 21, a feeding portion 211 is provided on the top of the tank shell 21 for feeding grain into the tank shell 21, a storage portion 2111 and a through-portion 2112 connected to the storage portion 2111 are provided on the feeding portion 2111, the storage portion 2111 is in the shape of a funnel with a large top and a small bottom, a discharge port 212 is provided at the bottom of the tank shell 21, and the dried grain can be discharged from the discharge port 212, and the bottom of the tank shell 21 is fixed The tank shell 21 is fixedly connected with an air inlet pipe 22, which is connected to an external blower for introducing gas. The bottom of the tank shell 21 is in the shape of a funnel with a larger top and a smaller bottom to facilitate the discharge of the dried grain. The inner wall of the tank shell 21 is fixedly connected with a partition 1 23 and a partition 2 24. The partition 1 23 is located directly above the partition 24. The partition 1 23 and the partition 2 24 divide the inner cavity of the tank shell 21 into an upper drying chamber 25, a lower drying chamber 26 and a cooling chamber 27.

[0036] refer to Figure 2 and Figure 3 As shown, the partition 1 23 is provided with an air duct 1 231 and a material leakage hole 1 232, and the material leakage hole 1 232 is in the shape of a strip to connect the upper drying chamber 25 and the lower drying chamber 26, and the food in the upper drying chamber 25 can enter the lower drying chamber 26 through the material leakage hole 1 232, and the partition 24 is provided with an air duct 241 and a material leakage hole 242, and the material leakage hole 242 is in the shape of a strip to connect the lower drying chamber 26 and the cooling chamber 27, and the food in the lower drying chamber 26 can enter the lower drying chamber 26 through the material leakage hole The first heating device 242 enters the interior of the cooling chamber 27, and the tank shell 21 is fixedly installed with a heating device 28 and a heating device 29. The air inlet end of the heating device 28 passes through the lower drying chamber 26, and the air outlet end of the heating device 28 is connected to the air duct 231. In this embodiment, the heating device 28 includes a first natural gas furnace and a first induced draft fan. The air inlet end of the first induced draft fan is connected to the lower drying chamber 26, and the air outlet end of the first induced draft fan is connected to the air duct 231 through the first heating pipe. 1 is connected, the heating end of the first natural gas furnace is connected to the first heating pipe, so that the first induced draft fan draws out the gas in the lower drying chamber 26 and then transports it to the air duct 1 231 through the first heating pipe. During this period, the first natural gas furnace heats the gas passing through the first heating pipe by heating the first heating pipe. The air inlet end of the heating device 29 penetrates into the cooling chamber 27, and the air outlet end of the heating device 29 is connected to the air duct 241. In this embodiment, the heating device 29 includes a second natural gas furnace and a second induced draft fan. The air inlet end of the second induced draft fan is connected to the cooling chamber 27, and the air outlet end of the second induced draft fan is connected to the air duct 241 through the second heating pipe. The heating end of the second natural gas furnace is connected to the second heating pipe, so that the second induced draft fan draws out the gas in the cooling chamber 27 and then transports it to the air duct 2 241 through the second heating pipe. During this period, the second natural gas furnace heats the gas passing through the second heating pipe by heating the second heating pipe.

[0037] The grain is added into the storage part 2111 on the feeding part 211, and the grain in the storage part 2111 can flow into the upper drying chamber 25 through the inlet part 2112 for drying, and then the grain in the upper drying chamber 25 enters the lower drying chamber 26 through the leakage hole 1 232 for further drying, and the grain in the lower drying chamber 26 enters the cooling chamber 27 through the leakage hole 242 for cooling, and finally discharged from the discharge port 212; during this period, the external blower can suck the external air into the cooling chamber 27 through the air inlet pipe 22. , which can realize air cooling on the grain entering the cooling chamber 27 to reduce the temperature of the grain. The heating device 29 can extract and heat the gas in the cooling chamber 27, and the heated gas is then blown into the lower drying chamber 26 through the air duct 241 to dry the grain entering the lower drying chamber 26. The heating device 28 can extract and reheat the gas in the lower drying chamber 26, and then blow it into the upper drying chamber 25 through the air duct 231 to dry the grain entering the upper drying chamber 25.

[0038] refer to Figures 2 to 7 As shown, the auxiliary mechanism 30 includes a vent pipe 31 and a spiral guide plate 32, and the spiral guide plate 32 is wound around the outside of the vent pipe 31, and the grain can move along the guide of the spiral guide plate 32 to increase the downward movement of the grain, thereby slowing down the downward movement speed of the grain and increasing the drying time. The spiral guide plate 32 is made of elastic material and has elasticity. It can be compressed and restored along the vent pipe 31 to achieve the up and down shaking function. The vent pipe 31 is evenly provided with air outlet holes 311, and the hot air passing through the vent pipe 31 can be discharged from the air outlet holes 311. 1 is dispersed to combine the grains, a driving mechanism 33 for driving the spiral guide plate 32 to vibrate is arranged on the ventilation pipe 31, a sieve hole 321 is opened on the spiral guide plate 32, the sieve hole 321 can leak out the grains smaller than the size of the sieve hole 321, when the grains move along the guide of the spiral guide plate 32, the grains smaller than the size of the sieve hole 321 can directly leak out from the sieve hole 321, so as to reduce the movement stroke of a part of the grains smaller than the size of the sieve hole 321, and avoid excessive drying of the grains smaller than the size of the sieve hole 321 to cause waste of heat energy.

[0039] It should be noted that the two ventilation pipes 31 are fixedly arranged at the center of the partition 1 23 and the partition 2 24, and the two ventilation pipes 31 are respectively connected with the ventilation channel 1 231 and the ventilation channel 2 241. The hot air entering the ventilation channel 1 231 and the ventilation channel 2 241 can be respectively passed into the two ventilation pipes 31, and finally dispersed from the air outlet 311 on the ventilation pipe 31 to blow dry the grain. The bottoms of the two spiral guide plates 32 are respectively fixedly arranged on the upper surfaces of the partition 1 23 and the partition 2 24.

[0040] Continue to refer Figures 5 to 7As shown, the driving mechanism 33 includes a rotating shaft 331 and a guide plate 332. The rotating shaft 331 is rotatably set on the inner wall of the ventilation pipe 31 through a bearing. The rotating shaft 331 is fixedly connected with a notched gear 333 and an impeller 334. The guide plate 332 is fixedly set on the inner wall of the ventilation pipe 31. The airflow in the ventilation pipe 31 can be guided along the guide plate 332 to one side of the impeller 334 to blow the impeller 334 to rotate in one direction. The teeth of the notched gear 333 are meshed with a rack 335. A connecting rod 336 is welded to the rack 335. The connecting rod 336 is welded to the top of the spiral guide plate 32.

[0041] The gas introduced into the ventilation pipe 31 will blow the impeller 334 to rotate, and the impeller 334 drives the rotating shaft 331 to rotate. The rotation of the rotating shaft 331 drives the notched gear 333 to rotate. The notched gear 333 rotates and drives the rack 335 to move downward through its meshing with the rack 335. The rack 335 moves downward and drives the top of the spiral guide plate 32 to move downward through the connecting rod 336 to compress the spiral guide plate 32. When the notched part of the notched gear 333 rotates to the tooth matching position of the rack 335, the teeth of the notched gear 333 disengage from the meshing with the teeth of the rack 335. Under the elastic force of the spiral guide plate 32, the spiral guide plate 32 is reset and the rack 335 is reset through the connecting rod 336, thereby realizing the compression and release of the spiral guide plate 32, causing the spiral guide plate 32 to produce a shaking effect to accelerate the movement of food on the spiral guide plate 32.

[0042] refer to Figure 2 , Figure 3 and Figure 8 As shown, the auxiliary mechanism 40 includes a column 41 fixedly arranged on the lower surface of the partition 24, and the outer surface of the column 41 is fixedly connected with a spiral guide plate 42. The grain entering the cooling chamber 27 through the leakage hole 242 can move along the spiral guide plate 42 and finally be discharged from the discharge port 212. The spiral guide plate 42 can increase the downward movement of the grain, thereby slowing down the downward movement speed of the grain. The cold air entering the cooling chamber 27 can be fully combined with the grain entering the cooling chamber 27 to increase the cooling time of the grain, thereby improving the cooling effect of the grain.

[0043] refer to Figures 1 to 3 as well as Fig. 9 and Fig.10As shown, the material control mechanism 50 includes a bottom plate 51 arranged inside the inlet portion 2112, and a gap is provided between the bottom plate 51 and the inlet portion 2112 for air flow to pass through, and the width of the gap is smaller than the size of the grain particles to prevent the grain from leaking out. The bottom plate 51 can move downward to be separated from the inlet portion 2112 and move into the upper drying chamber 25, and the bottom plate 51 is fixedly connected to the connecting rod 336, and a connecting column 52 is fixedly connected to the upper surface of the bottom plate 51, and a top plate 53 is fixedly connected to the connecting column 52, and the top plate 53 Placed in the storage section 2111, the top plate 53 can be moved down to be placed inside the access section 2112, and the distance between the top plate 53 and the bottom plate 51 is smaller than the height of the access section 2112, a feed space 54 is formed between the top plate 53 and the bottom plate 51, and an exhaust hole 21121 is opened on the access section 2112, the size of the exhaust hole 21121 is smaller than the size of the grain particles, and a third induced draft fan is also provided on the outside of the processing tank 20, and the air inlet end of the third induced draft fan is connected to the exhaust hole 21121.

[0044] The grain in the storage part 2111 can enter the feeding space 54 along the gap between the storage part 2111 and the top plate 53. When the spiral guide plate 32 is compressed, the connecting rod 336 moves downward and drives the material control mechanism 50 to move downward synchronously. The top plate 53 and the bottom plate 51 are both placed in the access part 2112. The feeding space 54 obtains a certain amount of grain. As the material control mechanism 50 continues to move downward, the bottom plate 51 moves downward into the upper drying chamber 25. A gap is generated between the bottom plate 51 and the upper drying chamber 25. The grain in the feeding space 54 falls into the upper drying chamber 25 along the gap between the bottom plate 51 and the upper drying chamber 25. 5, at the same time, the gas in the upper drying chamber 25 passes through the feeding space 54 and is discharged from the exhaust hole 21121, and the dust in the grain is blown out together; when the spiral guide plate 32 is reset, the connecting rod 336 moves up and drives the material control mechanism 50 to move up synchronously, the bottom plate 51 moves up and enters the passage portion 2112, the top plate 53 is reset and then enters the storage portion 2111, and the grain in the storage portion 2111 is then injected into the feeding space 54 along the gap between the storage portion 2111 and the top plate 53, so as to realize the quantitative addition of grain and avoid the continuous entry of grain into the upper drying chamber 25 to cause grain accumulation.

[0045] When in use, add grain into the storage part 2111 on the feeding part 211, start the external blower to blow air into the air inlet pipe 22, and start the external third induced draft fan to exhaust air from the exhaust hole 21121. At the same time, start the heating device 1 28 and the heating device 2 29, so that the gas flows along the air inlet pipe 22, the cooling chamber 27, the heating device 29, the air duct 241, the air duct 31 in the lower drying chamber 26, the lower drying chamber 26, the heating device 1 28, the air duct 1 231, the air duct 31 in the upper drying chamber 25, the upper drying chamber 25, the entry part 2112 and the exhaust hole 21121 in sequence, and the grain in the storage part 2111 can enter the feeding space 54 along the gap between the storage part 2111 and the top plate 53. The gas in the air duct 31 will blow the impeller 334 to rotate, and the impeller 334 will drive the rotating shaft 331 to rotate. The rotation of shaft 331 drives the notched gear 333 to rotate. The rotation of notched gear 333 drives the rack 335 to move downward through its meshing with rack 335. The rack 335 moves downward and drives the top of spiral guide plate 32 to move downward through connecting rod 336 to compress spiral guide plate 32. At the same time, connecting rod 336 moves downward and drives the material control mechanism 50 to move downward synchronously. The top plate 53 and the bottom plate 51 are both placed in the access portion 2112. The feeding space 54 obtains a certain amount of grain. As the material control mechanism 50 continues to move downward, the bottom plate 51 moves downward into the upper drying chamber 25. A gap is generated between the bottom plate 51 and the upper drying chamber 25. The grain in the feeding space 54 falls into the upper drying chamber 25 along the gap between the bottom plate 51 and the upper drying chamber 25. At the same time, the exhaust gas in the upper drying chamber 25 passes through the feeding space 54 and is discharged from the exhaust hole 21121, and the dust in the grain is blown out together.

[0046] When the notch of the notch gear 333 rotates to the tooth matching position of the rack 335, the teeth of the notch gear 333 disengage from the meshing with the teeth of the rack 335, and under the elastic force of the spiral guide plate 32, the spiral guide plate 32 is reset, and the rack 335 is driven to reset through the connecting rod 336. At this time, the connecting rod 336 moves up and drives the material control mechanism 50 to move up synchronously, the bottom plate 51 moves up and enters the access portion 2112, the top plate 53 resets and then enters the storage portion 2111, and the food in the storage portion 2111 is then injected into the feeding space 54 along the gap between the storage portion 2111 and the top plate 53, so as to continuously add food into the upper drying chamber 25.

[0047] The grain entering the upper drying chamber 25 falls onto the spiral guide plate 32 in the upper drying chamber 25 and moves along the guide, and finally enters the lower drying chamber 26 through the leakage hole 232. The grain entering the lower drying chamber 26 falls onto the spiral guide plate 32 in the lower drying chamber 26 and moves along the guide, and finally enters the cooling chamber 27 through the leakage hole 242. At the same time, the compression and release of the spiral guide plate 32 cause the spiral guide plate 32 to produce a shaking effect to accelerate the movement of the grain on the spiral guide plate 32. The grain entering the cooling chamber 27 moves along the guide of the spiral guide plate 242 and is finally discharged from the discharge port 212.

[0048] During this period, the external blower can suck the external air into the cooling chamber 27 through the air inlet pipe 22 to cool the grain in the cooling chamber 27, so as to reduce the temperature of the grain. The heating device 29 can extract and heat the gas in the cooling chamber 27, and the heated gas is then blown into the lower drying chamber 26 through the air duct 241 to dry the grain entering the lower drying chamber 26. The heating device 28 can extract and reheat the gas in the lower drying chamber 26, and then blow it into the upper drying chamber 25 through the air duct 231 to enhance the drying process of the grain entering the upper drying chamber 25.

[0049] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0050] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A high-efficiency energy-saving drying device, comprising a tank shell (21), wherein a feeding portion (211) is provided at the top of the tank shell (21), and a discharge port (212) and an air inlet pipe (22) are provided at the bottom of the tank shell (21), characterized in that: The inner wall of the tank shell (21) is provided with a partition plate 1 (23) and a partition plate 2 (24), the partition plate 1 (23) and the partition plate 2 (24) dividing the tank shell (21) into an upper drying chamber (25), a lower drying chamber (26) and a cooling chamber (27), the partition plate 1 (23) is provided with an air vent 1 (231) and a material leakage hole 1 (232), the partition plate 2 (24) is provided with an air vent 2 (241) and a material leakage hole 2 (242), the tank shell (21) is provided with a heating device 1 (28) and a heating device 2 (29), the air inlet end and the air outlet end of the heating device 1 (28) are connected to the lower drying chamber (26) and the air vent 1 (231) and the cooling chamber (27), respectively. The air inlet end and the air outlet end of the heating device 2 (29) are respectively connected to the cooling chamber (27) and the air duct 2 (241); the partition 1 (23) and the partition 2 (24) are respectively provided with two air ducts (31), and the two air ducts (31) are respectively connected to the air duct 1 (231) and the air duct 2 (241); each of the air ducts (31) is provided with an air outlet hole (311); the partition 1 (23) and the partition 2 (24) are respectively provided with two spiral guide plates 1 (32), and the two spiral guide plates 1 (32) are respectively wound around the outside of the two air ducts (31).

2. The high-efficiency energy-saving drying device according to claim 1, characterized in that: Each of the spiral guide plates (32) is provided with a sieve hole (321).

3. The high-efficiency energy-saving drying device according to claim 1, characterized in that: The spiral guide plate 1 (32) is elastic and can be compressed and restored, and a driving mechanism (33) for compressing the spiral guide plate 1 (32) is provided on the ventilation pipe (31).

4. The high-efficiency energy-saving drying device according to claim 3, characterized in that: The driving mechanism (33) comprises a rotating shaft (331) and a guide plate (332); the rotating shaft (331) is rotatably arranged on the inner wall of the ventilation pipe (31); a notched gear (333) and an impeller (334) are arranged on the rotating shaft (331); the guide plate (332) is arranged on the inner wall of the ventilation pipe (31); the airflow in the ventilation pipe (31) can be guided along the guide plate (332) to one side of the impeller (334) to blow the impeller (334) to rotate in one direction; the teeth of the notched gear (333) are meshed with a rack (335); a connecting rod (336) is arranged on the rack (335); and the connecting rod (336) is connected to the top of the spiral guide plate 1 (32).

5. The high-efficiency energy-saving drying device according to claim 1, characterized in that: It also includes an auxiliary mechanism 2 (40), the auxiliary mechanism 2 (40) being arranged in the cooling chamber (27), the auxiliary mechanism 2 (40) comprising a column (41) arranged on the partition 2 (24), and the outer surface of the column (41) being provided with a spiral guide plate 2 (42).

6. The high-efficiency energy-saving drying device according to claim 4, characterized in that: The feeding portion (211) is provided with a material storage portion (2111) and an inlet portion (2112) connected to the material storage portion (2111).

7. The high-efficiency energy-saving drying device according to claim 6, characterized in that: The tank shell (21) further comprises a material control mechanism (50) arranged on the tank shell (21), the material control mechanism (50) comprising a bottom plate (51) arranged in the access portion (2112), the bottom plate (51) being able to move downward into the upper drying chamber (25), the bottom plate (51) being fixedly arranged on the connecting rod (336), a connecting column (52) being fixedly arranged on the upper surface of the bottom plate (51), a top plate (53) being fixedly arranged on the connecting column (52), the top plate (53) being located in the material storage portion (2111), the top plate (53) being able to move downward into the interior of the access portion (2112), and a material feeding space (54) being formed between the top plate (53) and the bottom plate (51).

8. The high-efficiency energy-saving drying device according to claim 7, characterized in that: The distance between the top plate (53) and the bottom plate (51) is smaller than the height of the access portion (2112).

9. The high-efficiency energy-saving drying device according to claim 7, characterized in that: An exhaust hole (21121) is provided on the inlet portion (2112), the size of the exhaust hole (21121) being smaller than the size of grain particles, and a third induced draft fan is further provided outside the tank shell (21), the air inlet end of the third induced draft fan being in communication with the exhaust hole (21121).

10. The high-efficiency energy-saving drying device according to any one of claims 1 to 9, characterized in that: The heating device 1 (28) comprises a first natural gas furnace and a first induced draft fan, the air inlet end of the first induced draft fan is connected to the lower drying chamber (26), the air outlet end of the first induced draft fan is connected to the air duct 1 (231) and a first heating pipe is arranged therebetween, and the heating end of the first natural gas furnace is connected to the first heating pipe.

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