A rice seed storage and drying device

Abstract

The present invention provides a rice seed storage and drying device, which relates to the technical field of dryers. The present invention includes a vehicle frame, and further includes a heating module, a drying module, a circulation module and a conveying module that are detachably installed on the vehicle frame. The conveying module blows the hot air generated by the heating module into the drying module, and uses the hot air entering the drying module to dry the rice seeds. The circulation module conveys the rice seeds at the bottom of the drying module to the upper part for circulating drying. Since the circulation module is arranged inside the drying cylinder, the present invention can convey the rice seeds at the bottom upwards, and then drop the rice seeds from a high place so that they freely fall into the drying cylinder. The rice seeds are more dispersed during the falling process and can better contact with the hot air, thereby improving the drying efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of dryers, and particularly to a rice seed storage and drying device. Background Art

[0002] In the processing of rice seeds, in order to improve the processing efficiency of rice seeds and the safety of rice seed storage, it is necessary to sun-dry or dry the rice seeds. Failure to dry the rice seeds will cause the rice seeds to mildew or germinate, affecting later planting.

[0003] The prior art such as the utility model patent with the authorization announcement number CN221685066U discloses a rice seed drying device, which includes a drying box body, a cover plate is hinged at the upper side opening thereof, a support seat is fixedly arranged in the middle of the inner bottom side of the drying box body, a rotating insertion rod is rotatably inserted in the middle of the upper side of the support seat, a rotating motor is arranged in the support seat corresponding to the rotating insertion rod, the driving end of the rotating motor is drivingly connected with the rotating insertion rod, a circular drying groove is arranged on the rotating insertion rod, the middle of the circular drying groove is rotatably inserted on the rotating insertion rod, an electric telescopic rod is fixedly arranged at the bottom of the support seat corresponding to the circular drying groove, a stirring structure is also movably arranged on the rotating insertion rod, a ventilation and heating assembly is arranged on the side wall of the drying box body, and a ventilation opening is arranged on the side wall of the drying box body corresponding to the ventilation and heating assembly; the rotating motor drives the rotating insertion rod to rotate, so as to drive the stirring plate to rotate and stir the rice seeds in the circular drying groove, and cooperate with the ventilation and heating assembly to perform rapid drying work, with low drying cost and high practicability.

[0004] The above prior art has at least the following disadvantages: Although the stirring method is adopted to improve the seed drying efficiency, since the rice seeds are in contact and stacked with each other, it is still difficult to dry the contact parts even with stirring, and there is still the problem of incomplete drying. Summary of the Invention

[0005] The purpose of the present invention is to solve the disadvantages existing in the prior art, and to propose a rice seed storage and drying device.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A rice seed storage and drying device includes a vehicle frame, and further includes a heating module, a drying module, a circulation module and a conveying module detachably installed on the vehicle frame. The conveying module blows the hot air generated by the heating module into the drying module, and uses the hot air entering the drying module to dry the rice seeds. The circulation module conveys the rice seeds at the bottom of the drying module to the upper part for circulating drying; The drying module includes a drying cylinder installed on the vehicle frame. A buffer is arranged inside the drying cylinder. The rice seeds conveyed by the circulation module fall onto the buffer under the action of gravity. The falling rice is blocked and buffered by the buffer to reduce the falling speed. A stir-frying member is arranged below the buffer. The rice passing through the buffer falls onto the stir-frying member for bumping and stir-frying to be evenly dried.

[0007] Preferably, the buffer includes a buffer cone hopper. The buffer cone hopper is provided with a first buffer angle steel, a buffer column and a second buffer angle steel. The first buffer angle steel, the buffer column and the second buffer angle steel are all arranged in a circumferential array at the upper end of the buffer cone hopper. The horizontal positions of the uppermost ends of the first buffer angle steel, the buffer column and the second buffer angle steel are in a stepped shape from low to high.

[0008] Preferably, the stir-frying member includes a stir-frying hopper with an upward opening. The edge of the stir-frying hopper is fixed to the drying cylinder. The surface of the stir-frying hopper is evenly provided with storage holes. Elastic cloth pockets are installed on the inner walls of the storage holes. It also includes a sliding cone that can slide vertically in the inner cavity of the drying cylinder. The upper end of the sliding cone is fixedly connected with a push rod, and the push rod is located directly below the cloth pocket.

[0009] Preferably, a vertical pushing member is arranged below the sliding cone. The vertical pushing member includes a diversion cavity and an impeller member. The diversion cavity spirals upward on the inner wall of the drying cylinder. The bottom end of the diversion cavity is communicated with the conveying module. The top end of the diversion cavity is sealed. The hot air sent by the conveying module is discharged from the side air holes of the diversion cavity. The discharged hot air blows the impeller member to rotate. The rotating impeller member can drive the sliding cone to move up and down by using the protrusions at the upper end to cooperate with the grooves below the sliding cone;

[0010] The impeller member includes an impeller plate. The impeller plate rotates on the surface of a circular tube. The surface of the impeller plate is evenly provided with impeller fan blades. The air holes of the diversion cavity are aligned with the impeller fan blades. The sliding cone slides up and down on the surface of the circular tube (only slides vertically and cannot rotate). An arc-shaped groove is opened below the sliding cone. A top bar corresponding to the arc-shaped groove is fixedly installed at the upper end of the impeller plate.

[0011] Preferably, the circulation module includes a circular tube. The circular tube passes through and is fixed to the bottom wall of the drying cylinder. The bottom end of the circular tube is sealed. An outlet is formed on the surface of the circular tube located outside the drying cylinder. A blocking piece is clamped on the surface of the outlet. A screw conveyor is rotatably connected inside the circular tube. A motor is fixedly installed at the bottom of the circular tube to drive the screw conveyor to rotate. An inlet is formed on the surface of the circular tube near the inner bottom wall of the drying cylinder. The rice seeds enter the inside of the circular tube along the inlet and are conveyed upward by the rotating screw conveyor. The upper end of the circular tube is rotatably sleeved with a sleeve with a sealed upper end. Two discharge grooves are formed at the upper end of the circular tube. A discharge cavity is arranged at the position of the sleeve corresponding to the discharge grooves. When the discharge cavity is aligned with the discharge grooves, the rice seeds conveyed by the screw conveyor enter the discharge cavity from the discharge grooves and then freely fall from below the discharge cavity. A discharge pipe is also communicated with the side of the sleeve. The free end of the discharge pipe extends obliquely downward out of the drying cylinder.

[0012] Preferably, the heating module includes a heat energy component and a heat source component. The heat energy component includes a heating chamber. The heat source component includes a heat source chamber arranged above the heating chamber. A first water tank is installed in the inner cavity of the heating chamber. The upper end of the first water tank is communicated with a heat source straight pipe. The heat source straight pipe extends into the heat source chamber. The port of the heat source straight pipe is communicated with a plurality of heat source bent pipes. Heat dissipation fins are uniformly arranged on the surface of the heat source bent pipes. The heat source bent pipes are bent downward. The port of the heat source bent pipe is communicated with a collecting pipe. The collecting pipe discharges the steam through a circulation component. A trachea is arranged at the upper end of the heat source chamber. The heat source chamber is communicated with the drying cylinder through a conveying module.

[0013] An isolation rack is arranged in the heating chamber. Solid fuel can be placed on the isolation rack and burned by igniting the solid fuel for heating. The area below the isolation rack is an ash storage area. A maintenance hatch is arranged on the side of the heating chamber. The heating chamber can be maintained by opening the maintenance hatch. A feeding hatch is arranged on the side of the heating chamber. Solid materials are added by using the feeding hatch. An ash discharging hatch is arranged on the side of the heating chamber. The opening degree of the ash discharging hatch is controlled according to the combustion state to control the air intake and adjust the combustion degree. A water filling port is arranged on the side of the first water tank. A liquid level gauge is also arranged on the side of the first water tank. Whether the first water tank needs to be replenished with water is judged by observing the liquid level gauge.

[0014] Preferably, a recovery component is arranged inside the heat source chamber. The recovery component includes a second water tank arranged inside the heat source chamber and a smoke exhaust pipe. The smoke exhaust pipe penetrates through the second water tank to communicate the heating chamber with the outside. Heat exchange fins are uniformly arranged on the surface of the smoke exhaust pipe located inside the second water tank. A steam pipe is communicated with the side of the second water tank. The other end of the steam pipe is inserted into the first water tank and submerged in water. A water filling port is arranged on the side of the second water tank. A liquid level gauge is also arranged on the side of the second water tank. Whether the first water tank needs to be replenished with water is judged by observing the liquid level gauge.

[0015] Preferably, the port of the steam pipe is sealed, and a stirring member is arranged on the surface of the steam pipe. The stirring member includes a rotating ring rotatably sleeved on the surface of the steam pipe. Stirring fins are uniformly arranged on the surface of the rotating ring, and inclined holes are formed in the surface of the steam pipe.

[0016] Preferably, the circulation member includes a first circulation air pipe, a switching member, a second circulation air pipe and a spraying pipe. The first circulation air pipe is communicated with the collecting pipe. The switching member communicates the first circulation air pipe and the second circulation air pipe. The spraying pipe is inserted into the smoke exhaust pipe, and the spraying pipe is communicated with the second circulation air pipe.

[0017] Preferably, a heating member is arranged at the port of the smoke exhaust pipe. The heating member includes a smoke outlet hood communicated with the port of the smoke exhaust pipe. A conical pipe is communicated with the port of the spraying pipe. A plug cone is arranged in the inner cavity of the conical pipe with a gap. A shaft rod is rotatably connected to the port of the plug cone, and the shaft rod is fixed in the smoke outlet hood. Exhaust windows are formed on the side surface of the smoke outlet hood.

[0018] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0019] 1. In the present invention, since a circulation module is arranged inside the drying cylinder, the rice seeds at the bottom can be conveyed upward, and then the rice seeds are dropped from a high place to fall freely into the drying cylinder. The rice seeds are more dispersed during the falling process and can better contact with the hot air, thereby improving the drying efficiency.

[0020] 2. In the present invention, the rice grains falling from the buffer member onto the stir-frying member are turned over by the vibration and bumping of the stir-frying member to contact with the hot air, further improving the drying efficiency.

[0021] 3. In the present invention, since heat exchange is carried out with water vapor, the air temperature is lower than the temperature directly heated by combustion, avoiding the rice grains from contacting too high a temperature and causing carbonization and inactivation.

[0022] 4. In the present invention, the steam enters the first water tank from the steam pipe, and the steam sprays out from the first water tank to promote the water circulation in the first water tank, accelerating the boiling of the water in the first water tank to generate steam, improving the steam generation efficiency of the first water tank, and further improving the efficiency of heating and drying the air for the rice seeds. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic three-dimensional structure diagram of a rice seed storage and drying device proposed by the present invention;

[0024] Figure 2 is a partial structure diagram of the heating module in the present invention;

[0025] Figure 3 is in the present invention Figure 2Schematic diagram of the internal structure;

[0026] Figure 4 Internal schematic diagram of the recovery component in the present invention;

[0027] Figure 5 Partial structural schematic diagram of the heating component in the present invention;

[0028] Figure 6 Cross-sectional schematic diagram of the scraping ring in the present invention;

[0029] Figure 7 Partial schematic diagram of the steam pipe in the present invention;

[0030] Figure 8 Partial schematic diagram of the stirring member in the present invention;

[0031] Figure 9 Partial schematic diagram of the buffer member in the present invention;

[0032] Figure 10 Partial schematic diagram of the stir-frying member in the present invention;

[0033] Figure 11 Partial schematic diagram of the vertical pushing member in the present invention;

[0034] Figure 12 Internal schematic diagram of the circulation module in the present invention.

[0035] Legend: 1. Frame; 2. Heating module; 21. Heat energy component; 211. Heating chamber; 212. Isolation frame; 22. Heat source component; 221. Heat source chamber; 222. First water tank; 223. Heat source straight pipe; 224. Heat source elbow pipe; 225. Heat dissipation fin; 226. Collection pipe; 227. Air pipe; 23. Recovery component; 231. Second water tank; 232. Smoke exhaust pipe; 233. Heat exchange fin; 234. Steam pipe; 235. Stirring part; 2351. Rotating ring; 2352. Stirring fin; 2353. Oblique hole; 24. Circulation component; 241. First circulation air pipe; 242. First circulation water pipe; 243. Switching part; 2431. Housing; 2432. Operation cavity; 2433. Rotating shaft; 2434. Sealing blade; 2435. Switching blade; 244. Second circulation air pipe; 245. Second circulation water pipe; 246. Spray pipe; 25. Heating component; 251. Smoke outlet hood; 252. Conical pipe; 253. Plug cone; 254. Shaft rod; 255. Exhaust window; 256. Scraping ring; 3. Drying module; 31. Drying cylinder; 32. Buffer part; 321. First buffer angle steel; 322. Buffer column; 323. Second buffer angle steel; 324. Buffer hopper; 33. Stir-frying part; 331. Stir-frying hopper; 332. Storage hole; 333. Sliding cone; 334. Push rod; 34. Vertical pushing part; 341. Diversion cavity; 342. Impeller component; 3421. Impeller fan blade; 3422. Impeller plate; 3423. Top bar; 4. Circulation module; 41. Circular tube; 42. Screw conveyor; 43. Discharge chute; 44. Sleeve; 45. Discharge cavity; 46. Discharge pipe; 5. Conveyor module. Detailed implementation mode

[0036] Example 1, as Figure 1 and Figure 9As shown in the figure, a rice seed storage and drying device includes a vehicle frame 1, and further includes a heating module 2, a drying module 3, a circulation module 4, and a conveying module 5 that are detachably installed on the vehicle frame 1. The conveying module 5 blows the hot air generated by the heating module 2 into the drying module 3, and uses the hot air entering the drying module 3 to dry the rice seeds. The circulation module 4 conveys the rice seeds at the bottom of the drying module 3 to the upper part for circulating drying; the drying module 3 includes a drying cylinder 31 installed on the vehicle frame 1. A buffer member 32 is provided inside the drying cylinder 31. The rice seeds conveyed by the circulation module 4 fall onto the buffer member 32 under the action of gravity. The falling rice grains are blocked and buffered by the buffer member 32 to reduce the falling speed. A stir-frying member 33 is provided below the buffer member 32. The rice grains passing through the buffer member 32 fall onto the stir-frying member 33 for jolting and stir-frying to be evenly dried. When rice seeds need to be stored for a long time, it is necessary to reduce their moisture content to avoid mildew or germination during long-term stacking storage. The rice seeds to be dried are poured into the drying cylinder 31 (it can be manually poured into the drying cylinder 31 using a ladder or conveyed to the drying cylinder 31 through a belt conveyor). The heating module 2 generates high-temperature gas by heating (electric heating, gaseous fuel combustion heating, or solid fuel combustion heating can be used). The conveying module 5 sends the high-temperature gas generated by the heating module 2 into the drying cylinder 31 (the conveying module 5 can use a combination of a blower and a duct to draw the high-temperature gas in the heating module 2 into the drying cylinder 31). The high-pressure and high-temperature hot air entering the drying cylinder 31 dries the rice seeds; since a circulation module 4 is provided inside the drying cylinder 31, it can convey the rice seeds at the bottom upward, and then drop the rice seeds from a high place so that they fall freely into the drying cylinder 31. The rice seeds are more dispersed during the falling process and can better contact with the hot air, thereby improving the drying efficiency; the rice grains falling from the buffer member 32 fall onto the stir-frying member 33, and the stir-frying member 33 vibrates and jolts to turn the rice grains over to further improve the drying efficiency.

[0037] Refer to Figures 9 to 11As shown in the figure, the buffer member 32 includes a buffer hopper 324. A first buffer angle steel 321, a buffer column 322, and a second buffer angle steel 323 are provided on the buffer hopper 324. The first buffer angle steel 321, the buffer column 322, and the second buffer angle steel 323 are all arranged in a circumferential array at the upper end of the buffer hopper 324. The horizontal positions of the uppermost ends of the first buffer angle steel 321, the buffer column 322, and the second buffer angle steel 323 are stepped from low to high. The paddy rice conveyed from the circulation module 4 falls onto the buffer hopper. The paddy rice slides down along the buffer hopper. The sliding paddy rice hits the first buffer angle steel 321 and is diverted by the first buffer angle steel 321. When the paddy rice slides on the surface of the first buffer angle steel 321, its speed is further reduced. The continuously sliding paddy rice hits the buffer column 322 and is blocked and diverted to decelerate. The decelerated paddy rice hits the second buffer angle steel 323 and is diverted by the second buffer angle steel 323. When the paddy rice slides on the surface of the second buffer angle steel 323, its speed is further reduced. Finally, the paddy rice falls from the gap between the buffer hopper 324 and the drying cylinder 31. The circumferential arrangement of the stepped first buffer angle steel 321, the buffer column 322, and the second buffer angle steel 323 into a bowl-shaped structure can gather the paddy rice as much as possible.

[0038] The stir-frying member 33 includes a stir-frying hopper 331 with an upward opening. The edge of the stir-frying hopper 331 is fixed to the drying cylinder 31. Storage holes 332 are evenly opened on the surface of the stir-frying hopper 331. Elastic cloth bags are installed on the inner walls of the storage holes 332. It also includes a sliding cone 333 that can slide vertically in the inner cavity of the drying cylinder 31. A push rod 334 is fixedly connected to the upper end of the sliding cone 333. The push rod 334 is located directly below the cloth bag. The paddy rice falling from the gap between the buffer hopper 324 and the drying cylinder 31 lands on the stir-frying hopper 331. Under the action of gravity, the paddy rice slides along the stir-frying hopper 331. The paddy rice slides into the elastic cloth bags in the storage holes 332 for storage. By driving the sliding cone 333 to move up and down, the push rod 334 stabs the elastic cloth bags to lift the paddy rice in the elastic cloth bags, thereby achieving the effect of stir-frying. The vibration stir-frying of the paddy rice increases the contact area with the hot air, avoids uneven heating caused by paddy rice accumulation, and also increases the time of the paddy rice in the air to improve the drying efficiency.

[0039] Below the sliding cone 333, there is a vertical pusher 34. The vertical pusher 34 includes a diversion cavity 341 and an impeller component 342. The diversion cavity 341 spirals upward on the inner wall of the drying cylinder 31. The bottom end of the diversion cavity 341 communicates with the conveying module 5, and the top end of the diversion cavity 341 is sealed. The hot air sent by the conveying module 5 is discharged from the air outlet holes on the side of the diversion cavity 341. The discharged hot air blows the impeller component 342 to rotate. The rotating impeller component 342 can drive the sliding cone 333 to move up and down by using the protrusion at the upper end to cooperate with the groove below the sliding cone 333. The impeller component 342 includes an impeller plate 3422. The impeller plate 3422 rotates on the surface of the circular tube 41. The surface of the impeller plate 3422 is evenly provided with impeller blades 3421. The air outlet holes of the diversion cavity 341 are aligned with the impeller blades 3421. The sliding cone 333 slides up and down on the surface of the circular tube 41 (only slides vertically and cannot rotate). An arc-shaped groove is opened below the sliding cone 333. A top bar 3423 corresponding to the arc-shaped groove is fixedly installed at the upper end of the impeller plate 3422. The conveying module 5 blows hot air into the diversion cavity 341 in the drying cylinder 31. The spiral upward of the diversion cavity 341 enables the entering air flow to also spiral upward. Since the upper end of the diversion cavity 341 is sealed, the spiral upward air flow is ejected from the air outlet holes on the side of the diversion cavity 341 to blow the impeller blades 3421. The impeller blades 3421 drive the impeller plate 3422 to rotate on the surface of the circular tube 41. During the rotation of the impeller plate 3422, the top bar 3423 continuously alternates to enter and exit the arc-shaped groove. Therefore, the sliding cone 333 continuously moves up and down, and the push rod 334 at the upper end of the sliding cone 333 also moves up and down to lift the elastic cloth sleeve.

[0040] Refer to Figure 1 and Figure 9 as well as Figure 12As shown, the circulation module 4 includes a circular tube 41, where the circular tube 41 passes through and is fixed to the bottom wall of the drying cylinder 31. The bottom end of the circular tube 41 is sealed. An outlet is provided on the surface of the circular tube 41 located outside the drying cylinder 31, and a blocking piece is clamped on the surface of the outlet. A screw conveyor 42 is rotatably connected inside the circular tube 41. A motor is fixedly installed at the bottom of the circular tube 41, and the motor drives the screw conveyor 42 to rotate. An inlet is provided on the surface of the circular tube 41 near the inner bottom wall of the drying cylinder 31. The rice seeds enter the inside of the circular tube 41 along the inlet and are conveyed upward by the rotating screw conveyor 42. A sleeve 44 with a sealed upper end is rotatably sleeved on the upper end of the circular tube 41. Two discharge slots 43 are provided at the upper end of the circular tube 41. A discharge chamber 45 is provided at the position of the sleeve 44 corresponding to the discharge slots 43. When the discharge chamber 45 is aligned with the discharge slots 43, the rice seeds conveyed upward by the screw conveyor 42 enter the discharge chamber 45 from the discharge slots 43 and then freely fall from below the discharge chamber 45. A discharge pipe 46 is also communicated with the side of the sleeve 44. The free end of the discharge pipe 46 extends obliquely downward out of the drying cylinder 31. The rice at the bottom of the drying cylinder 31 enters the circular tube 41 along the inlet of the circular tube 41, and the rice is conveyed upward by the rotation of the screw conveyor 42. The upwardly conveyed rice enters the discharge chamber 45 from the discharge slots 43 and then freely falls from below the discharge chamber 45. After the rice is dried, the discharge pipe 46 can be toggled (it can be toggled with a bamboo pole or with the help of a ladder) to drive the sleeve 44 to rotate on the surface of the circular tube 41, and then align the discharge pipe 46 with the discharge slots 43, so that the upwardly conveyed rice enters the discharge pipe 46 and is discharged.

[0041] Referring to Figure 2 and Figure 3 As shown, the heating module 2 includes a heat energy component 21 and a heat source component 22. The heat energy component 21 includes a heating chamber 211, and the heat source component 22 includes a heat source chamber 221 provided above the heating chamber 211. A first water tank 222 is installed in the inner cavity of the heating chamber 211. The upper end of the first water tank 222 is communicated with a heat source straight pipe 223, and the heat source straight pipe 223 extends into the heat source chamber 221. The port of the heat source straight pipe 223 is communicated with a plurality of heat source bent pipes 224. Heat dissipation fins 225 are evenly arranged on the surface of the heat source bent pipes 224. The heat source bent pipes 224 are bent downward, and the port of the heat source bent pipe 224 is communicated with a collecting pipe 226. The collecting pipe 226 discharges the steam through a circulation component 24. An air pipe 227 is provided at the upper end of the heat source chamber 221. The heat source chamber 221 is communicated with the drying cylinder 31 through a conveying module 5;

[0042] Inside the heating chamber 211, there is a partition rack 212. Solid fuel can be placed on the partition rack 212 and burned by igniting the solid fuel for heating. Below the partition rack 212 is an ash storage area. On the side of the heating chamber 211, there is a maintenance hatch. The heating chamber 211 can be maintained by opening the maintenance hatch. On the side of the heating chamber 211, there is a feeding hatch, through which solid materials are added. On the side of the heating chamber 211, there is an ash discharge hatch. By using the ash discharge hatch to take out the combustion residues and controlling the opening degree of the ash discharge hatch, the intake air volume is controlled to adjust the combustion degree. On the side of the first water tank 222, there is a water filling port. On the side of the first water tank 222, there is also a liquid level gauge. By observing the liquid level gauge, it is judged whether the first water tank 222 needs to be refilled. The fuel combustion in the heating chamber 211 heats the first water tank 222. The water in the first water tank 222 is heated to generate high-temperature steam. The high-temperature steam enters the heat source elbow 224 along the heat source straight pipe 223. The heat dissipation fins 225 on the surface of the heat source elbow 224 can quickly exchange heat with the air. In the conveying module 5, the fan sucks outside air from the air pipe 227 into the heat source chamber 221. The air is heated in the heat source chamber 221 (since it is a heat exchange with water vapor, the air temperature is less than the temperature directly heated by combustion to avoid the paddy contacting too high temperature and causing carbonization and inactivation). The steam after heat exchange enters the cold area of the collecting pipe 226 from the heat source elbow 224. The cooled steam-water mixture is discharged through the circulation component 24. The setting of the heat source elbow 224 can increase the contact area between the air and the steam.

[0043] Refer to Figure 2 and Figure 3 As shown, inside the heat source chamber 221, there is a recovery component 23. The recovery component 23 includes a second water tank 231 arranged inside the heat source chamber 221, and also includes a smoke exhaust pipe 232. The smoke exhaust pipe 232 penetrates through the second water tank 231 to connect the heating chamber 211 with the outside. On the surface of the smoke exhaust pipe 232 located inside the second water tank 231, heat exchange fins 233 are evenly arranged. The side of the second water tank 231 is connected to a steam pipe 234. The other end of the steam pipe 234 is inserted into the first water tank 222 and is submerged in water. On the side of the second water tank 231, there is a water filling port. On the side of the second water tank 231, there is also a liquid level gauge. By observing the liquid level gauge, it is judged whether the first water tank 222 needs to be refilled. The soot generated by combustion in the heating chamber 211 is discharged from the smoke exhaust pipe 232. The heat exchange fins 233 on the surface of the smoke exhaust pipe 232 increase the contact area with the second water tank 231 and improve the heat exchange efficiency of the high-temperature gas in the smoke exhaust pipe 232. The water in the second water tank 231 is heated to generate steam. The steam enters the first water tank 222 from the steam pipe 234. The steam ejected from the first water tank 222 promotes the water circulation in the first water tank 222 and accelerates the boiling of the water in the first water tank 222 to generate steam, improving the steam generation efficiency of the first water tank 222.

[0044] Refer to Figure 7 andFigure 8 As shown, the port of the steam pipe 234 is sealed, and a stirring member 235 is provided on the surface of the steam pipe 234. The stirring member 235 includes a rotating ring 2351 rotatably sleeved on the surface of the steam pipe 234. Stirring fins 2352 are evenly arranged on the surface of the rotating ring 2351. Oblique holes 2353 are formed on the surface of the steam pipe 234. Since the steam pipe 234 is sealed, the steam can only be discharged from the oblique holes 2353. The oblique holes 2353 are aligned with the stirring fins 2352. When the steam is discharged from the oblique holes 2353, on the one hand, it can stir the water body in the first water tank 222 to make it evenly heated and accelerate boiling. On the other hand, the discharged steam can drive the stirring fins 2352 to rotate. During the rotation of the stirring fins 2352, the water in the first water tank 222 is stirred to quickly generate steam. At the same time, it can also reduce the speed of the steam spraying out of the water surface of the first water tank 222, increase the contact time between the steam and the water in the first water tank 222, and improve the heat exchange efficiency.

[0045] Refer to Figure 3 and Figure 4 As shown, the circulation member 24 includes a first circulation air pipe 241, a switching member 243, a second circulation air pipe 244 and a spraying pipe 246. The first circulation air pipe 241 is communicated with the collecting pipe 226. The switching member 243 communicates the first circulation air pipe 241 and the second circulation air pipe 244. The spraying pipe 246 is inserted into the smoke exhaust pipe 232, and the spraying pipe 246 is communicated with the second circulation air pipe 244. The cooled steam-water mixture is sprayed out of the smoke exhaust pipe 232 through the first circulation air pipe 241, the switching member 243, the second circulation air pipe 244 and the spraying pipe 246. Since the high-speed ejected steam is discharged from the smoke exhaust pipe 232, the high-speed gas flow reduces the air pressure at the smoke exhaust pipe 232, and then makes the external air pressure of the smoke exhaust pipe 232 less than the internal air pressure. Under the action of the air pressure difference, the smoke exhaust efficiency of the smoke exhaust pipe 232 is accelerated. Therefore, the combustion progress in the heating chamber 211 is improved, thereby accelerating the generation of steam. The steam generation speed is increased, and the discharge speed of the steam in the smoke exhaust pipe 232 is increased, so the combustion speed is continuously increased in this cycle.

[0046] Refer to Figure 3As shown, a heating component 25 is provided at the port of the smoke exhaust pipe 232, and the heating component 25 includes a smoke hood 251 connected to the port of the smoke exhaust pipe 232, and a conical tube 252 is connected to the port of the ejection pipe 246, and a plug cone 253 is provided in the inner cavity gap of the conical tube 252, and a shaft rod 254 is rotatably connected to the port of the plug cone 253, wherein the shaft rod 254 is fixed in the smoke exhaust hood 251, and an exhaust window 255 is provided on the side of the smoke exhaust hood 251, and steam is ejected from between the conical tube 252 and the plug cone 253 to form a conical spray structure, and the conical spray structure is combined with the dust discharged from the smoke exhaust pipe 232 to form water droplets, thereby reducing the pollution of large-particle smoke caused by combustion. At the same time, the plug cone 253 may have spiral grooves on its surface, which can drive the plug cone 253 to rotate when steam is ejected. The spiral grooves on the rotating plug cone 253 guide the steam, so that a thicker spray jet is mixed in the steam cone spray. The thicker spray jet rotates and ejects to wash away the dust adhered to the inside of the smoke hood 251. A scraper ring 256 is provided on the surface of the shaft 254, wherein the scraper ring 256 is an arc-shaped structure that can guide the ejected steam to the exhaust window 255 for discharge.

[0047] Reference Figure 3 and Figure 4 As shown, the switching assembly includes a shell 2431 installed in the heat source chamber 221, wherein an operating chamber 2432 is arranged inside the shell 2431, and a rotating shaft 2433 is rotatably arranged in the operating chamber 2432, wherein one side of the rotating shaft 2433 is fixedly connected with two blocking blades 2434, and the other side of the rotating shaft 2433 is provided with two switching blades 2435, the blocking blades 2434 are divided into an upper blocking piece and a lower blocking piece according to their positions, and the switching blades 2435 are divided into an upper switching piece and a lower switching piece according to their positions, and the rotation of the rotating shaft 2433 is controlled by a servo motor. When the upper blocking piece blocks the inlet of the first circulating air pipe 241 in the operating chamber 2432, the upper switching piece also blocks the outlet of the second circulating air pipe 244 in the operating chamber 2432, and at this time, the lower blocking piece does not block the first circulating water pipe 242 in the operating chamber 24 32, and the upper switching piece does not block the outlet of the second circulating air pipe 244 in the operating chamber 2432. The high-pressure steam sends the condensed water in the collection pipe 226 along the first circulating water pipe 242, the operating chamber 2432, and the second circulating water pipe 245 into the second water tank 231 for reuse. When the upper sealing piece does not block the entrance of the first circulating air pipe 241 in the operating chamber 2432, the upper switching piece does not block the outlet of the second circulating air pipe 244 in the operating chamber 2432. At this time, the lower sealing piece blocks the entrance of the first circulating water pipe 242 in the operating chamber 2432, and the upper switching piece also blocks the outlet of the second circulating air pipe 244 in the operating chamber 2432. The high-pressure steam will be sent from the collection pipe 226 along the first circulating air pipe 241, the operating chamber 2432, and the second circulating air pipe 244 into the smoke exhaust pipe 232 to increase the smoke exhaust rate.

[0048] Working principle: When rice seeds need to be stored for a long time, it is necessary to reduce their moisture content to avoid mildew or germination during long-term stacking storage. The rice seeds to be dried are poured into the drying cylinder 31 (it can be manually poured into the drying cylinder 31 using a ladder or conveyed to the drying cylinder 31 through a belt conveyor). The heating module 2 generates high-temperature gas (wherein electric heating, gaseous fuel combustion heating, or solid fuel combustion heating can be used for heat generation). The conveying module 5 sends the high-temperature gas generated by the heating module 2 into the drying cylinder 31 (wherein the conveying module 5 can use a combination of an exhaust fan and an air duct to draw the high-temperature gas in the heating module 2 into the drying cylinder 31). The high-pressure and high-temperature hot gas entering the drying cylinder 31 dries the rice seeds;

[0049] Since a circulation module 4 is provided inside the drying cylinder 31, it can convey the rice seeds at the bottom upward, and then drop the rice seeds from a high place so that they fall freely into the drying cylinder 31. The rice seeds are more dispersed during the falling process and can better contact with the hot gas, thereby improving the drying efficiency; The paddy rice conveyed from the circulation module 4 falls onto the buffer hopper, and the paddy rice slides downward along the buffer hopper. The sliding paddy rice hits the first buffer angle steel 321 and is diverted by the first buffer angle steel 321. Among them, the paddy rice further decelerates when sliding on the surface of the first buffer angle steel 321. The continuously sliding paddy rice hits the buffer column 322 and is blocked and diverted to decelerate. The decelerated paddy rice hits the second buffer angle steel 323 and is diverted by the second buffer angle steel 323. Among them, the paddy rice further decelerates when sliding on the surface of the second buffer angle steel 323. Finally, the paddy rice falls from the gap between the buffer cone hopper 324 and the drying cylinder 31. The first buffer angle steel 321, buffer column 322, and second buffer angle steel 323 arranged in a stepped manner in a circumferential direction form a bowl-shaped structure that can gather the paddy rice as much as possible;

[0050] The paddy rice that falls through the gap between the buffer hopper 324 and the drying cylinder 31 lands on the stirring hopper 331. Under the action of gravity, the paddy rice slides along the stirring hopper 331 and slides into the elastic cloth pocket in the storage hole 332 for storage. By driving the sliding cone 333 to move up and down, the push rod 334 then pokes the elastic cloth pocket to make the paddy rice in the elastic cloth pocket be lifted up, thus achieving the effect of stirring. The paddy rice is vibrated and stirred to increase the contact area with the hot air, avoiding uneven heating due to paddy rice accumulation. It also increases the time of the paddy rice in the air to improve the drying efficiency. The conveying module 5 blows hot air into the diversion cavity 341 in the drying cylinder 31. The diversion cavity 341 spirals upward, enabling the incoming air flow to also spiral upward. Since the upper end of the diversion cavity 341 is sealed, the spiral upward air flow sprays out from the air outlet holes on the side of the diversion cavity 341 to blow the impeller blades 3421. The impeller blades 3421 drive the impeller plate 3422 to rotate on the surface of the circular tube 41. During the rotation of the impeller plate 3422, the top bars 3423 continuously alternate in and out of the arc-shaped grooves. Therefore, the sliding cone 333 continuously moves up and down, and the push rod 334 at the upper end of the sliding cone 333 also moves up and down to lift the elastic cloth sleeve. The paddy rice at the bottom of the drying cylinder 31 enters the circular tube 41 through the feed port of the circular tube 41 and is conveyed upward by the rotation of the auger 42. The paddy rice conveyed upward enters the discharge chute 43 from the discharge cavity 45 and then freely falls from below the discharge cavity 45. When the paddy rice is dried, the discharge pipe 46 can be toggled (it can be toggled with a bamboo pole or with the help of a ladder) to drive the sleeve 44 to rotate on the surface of the circular tube 41, and then align the discharge pipe 46 with the discharge chute 43, so that the paddy rice conveyed upward enters the discharge pipe 46 from the discharge chute 43 and is discharged.

[0051] In the heating chamber 211, the fuel burns to heat the first water tank 222. The water in the first water tank 222 is heated to generate high-temperature steam. The high-temperature steam enters the heat source elbow 224 along the heat source straight pipe 223. The heat dissipation fins 225 on the surface of the heat source elbow 224 can quickly exchange heat with the air. The fan in the conveying module 5 sucks the outside air from the air pipe 227 into the heat source chamber 221. The air is heated in the heat source chamber 221 (since it exchanges heat with the water vapor, the air temperature is less than the temperature directly heated by combustion to avoid the rice grains contacting too high a temperature and causing carbonization and inactivation). The steam after heat exchange enters the cold zone of the collection pipe 226 from the heat source elbow 224. The cooled steam and water mixture is discharged through the circulation component 24. The setting of the heat source elbow 224 can increase the contact area between the air and the steam. The soot generated by the combustion in the heating chamber 211 is discharged from the exhaust pipe 232. The heat exchange fins 233 on the surface of the exhaust pipe 232 accelerate the contact area with the second water tank 231 to improve the heat exchange efficiency of the high-temperature gas in the exhaust pipe 232. The water in the second water tank 231 is heated to generate steam. The steam enters the first water tank 222 from the steam pipe 234. The steam ejected from the first water tank 222 promotes the water circulation in the first water tank 222, accelerates the boiling of the water in the first water tank 222 to generate steam, and improves the steam generation efficiency of the first water tank 222. The steam pipe 234 is sealed, so the steam can only be discharged from the inclined holes 2353. The inclined holes 2353 are aligned with the stirring fins 2352. When the steam is discharged from the inclined holes 2353, on the one hand, it can stir the water body in the first water tank 222 to make it evenly heated and accelerate boiling. On the other hand, the discharged steam can drive the stirring fins 2352 to rotate. During the rotation of the stirring fins 2352, the water in the first water tank 222 is stirred to quickly generate steam. At the same time, it can also reduce the speed of the steam ejected from the water surface of the first water tank 222, increase the contact time between the steam and the water in the first water tank 222 to improve the heat exchange efficiency. The cooled steam and water mixture is ejected from the exhaust pipe 232 through the first circulation air pipe 241, the switching part 243, the second circulation air pipe 244 and the ejection pipe 246. Since the high-speed ejected steam is discharged from the exhaust pipe 232, the high-speed gas flow reduces the air pressure at the exhaust pipe 232. As a result, the external air pressure of the exhaust pipe 232 is less than the internal air pressure, and under the action of the pressure difference, the exhaust efficiency of the exhaust pipe 232 is accelerated. Therefore, the combustion progress in the heating chamber 211 is improved, thereby accelerating the generation of steam. The steam generation speed is increased, and the discharge speed of the steam in the exhaust pipe 232 is increased, so the combustion speed is continuously increased in this cycle; the steam is ejected from between the conical pipe 252 and the plug cone 253 to form a conical spray structure. The conical spray structure is combined with the dust discharged from the exhaust pipe 232 to form water droplets, thereby reducing the pollution of large particle soot during combustion.At the same time, the plug cone 253 may have a spiral groove on its surface, and when steam is ejected, the plug cone 253 can be driven to rotate. The spiral groove on the surface of the rotating plug cone 253 guides the steam, so that a thicker spray jet is mixed in the steam cone spray, and the thicker spray jet rotates and ejects to wash out the dust adhered to the inside of the smoke hood 251. The switching component includes a shell 2431 installed in the heat source chamber 221, wherein an operating chamber 2432 is arranged inside the shell 2431, and a rotating shaft 2433 is rotatably arranged in the operating chamber 2432, wherein two blocking blades 2434 are fixedly connected to one side of the rotating shaft 2433, and two switching blades 2435 are arranged on the other side of the rotating shaft 2433, and the blocking blades 2434 are divided into an upper blocking blade and a lower blocking blade according to their positions, and the switching blades 2435 are divided into an upper switching blade and a lower switching blade according to their positions. The rotating shaft 2433 is controlled to rotate by a servo motor. When the upper blocking blade blocks the entrance of the first circulating air pipe 241 in the operating chamber 2432, The upper switching piece also blocks the outlet of the second circulating air pipe 244 in the operating chamber 2432. At this time, the lower blocking piece does not block the inlet of the first circulating water pipe 242 in the operating chamber 2432, and the upper switching piece does not block the outlet of the second circulating air pipe 244 in the operating chamber 2432. The high-pressure steam sends the condensed water in the collection pipe 226 along the first circulating water pipe 242, the operating chamber 2432, and the second circulating water pipe 245 into the second water tank 231 for reuse. When the upper blocking piece does not block the first circulating water pipe When the tube 241 enters the operating chamber 2432, the upper switching piece does not block the outlet of the second circulating air pipe 244 in the operating chamber 2432. At this time, the lower sealing piece blocks the entrance of the first circulating water pipe 242 in the operating chamber 2432, and the upper switching piece also blocks the outlet of the second circulating air pipe 244 in the operating chamber 2432. High-pressure steam will be sent from the collecting pipe 226 along the first circulating air pipe 241, the operating chamber 2432, and the second circulating air pipe 244 into the smoke exhaust pipe 232 to increase the smoke exhaust rate.

[0052] The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed technical content to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A rice seed storage and drying device, comprising a frame (1), characterized in that: The vehicle also comprises a heating module (2), a drying module (3), a circulation module (4) and a conveying module (5) which are detachably mounted on the vehicle frame (1); the conveying module (5) blows hot air generated by the heating module (2) into the drying module (3), and uses the hot air to enter the drying module (3) to dry the rice seeds; the circulation module (4) conveys the rice seeds at the bottom of the drying module (3) to the upper part for circulation drying; the drying module (3) comprises a drying cylinder (31) mounted on the vehicle frame (1); a buffer (32) is arranged inside the drying cylinder (31); the rice seeds conveyed by the circulation module (4) fall onto the buffer (32) under the action of gravity, and the falling rice grains are blocked and buffered by the buffer (32) to reduce the falling speed, so that A stir-frying member (33) is arranged below the buffer member (32), and the rice that passes through the buffer member (32) falls onto the stir-frying member (33) to be shaken, stir-fried, and evenly dried; the heating module (2) comprises a thermal energy component (21) and a heat source component (22), wherein the thermal energy component (21) comprises a heating chamber (211), and the heat source component (22) comprises a heat source chamber (221) arranged above the heating chamber (211), and the inner cavity of the heating chamber (211) is provided with a first water tank (222), and the upper end of the first water tank (222) is connected to a heat source straight pipe (223), and the heat source straight pipe (223) extends into the interior of the heat source chamber (221), and the port of the heat source straight pipe (223) is connected to a plurality of heat source curved pipes (224), The surface of the heat source bent pipe (224) is evenly provided with heat dissipation fins (225), wherein the heat source bent pipe (224) is bent downward, and a port of the heat source bent pipe (224) is connected to a collecting pipe (226), and the collecting pipe (226) discharges steam through a circulation component (24); an air pipe (227) is provided at the upper end of the heat source chamber (221), wherein the heat source chamber (221) is connected to a drying cylinder (31) through a conveying module (5); a recovery component (23) is provided inside the heat source chamber (221), and the recovery component (23) includes a second water tank (231) provided inside the heat source chamber (221), and also includes a smoke exhaust pipe (232), wherein the smoke exhaust pipe (232) passes through the second water tank (231). The heating chamber (211) is connected to the outside, and the surface of the smoke exhaust pipe (232) located inside the second water tank (231) is evenly provided with heat exchange fins (233). The side of the second water tank (231) is connected with a steam pipe (234), wherein the other end of the steam pipe (234) is inserted into the first water tank (222) and immersed in water; the port of the steam pipe (234) is sealed, and the surface of the steam pipe (234) is provided with an agitator (235), wherein the agitator (235) includes a rotating ring (2351) rotatably sleeved on the surface of the steam pipe (234), and the surface of the rotating ring (2351) is evenly provided with stirring fins (2352), and the surface of the steam pipe (234) is provided with an inclined hole (2353).

2. The rice seed storage and drying device according to claim 1, characterized in that: The buffer member (32) comprises a buffer cone bucket (324), on which a first buffer angle steel (321), a buffer column (322) and a second buffer angle steel (323) are arranged, wherein the first buffer angle steel (321), the buffer column (322) and the second buffer angle steel (323) are arranged in a circular array at the upper end of the buffer cone bucket (324), and the uppermost horizontal positions of the first buffer angle steel (321), the buffer column (322) and the second buffer angle steel (323) are stepped from low to high.

3. The rice seed storage and drying device according to claim 2, characterized in that: The stir-frying part (33) comprises a stir-frying bucket (331) with an opening facing upward, wherein the edge of the stir-frying bucket (331) is fixed to the drying cylinder (31), the surface of the stir-frying bucket (331) is evenly provided with storage holes (332), the inner wall of the storage hole (332) is installed with an elastic cloth bag, and also comprises a sliding cone (333) that can slide in the vertical direction of the inner cavity of the drying cylinder (31), the upper end of the sliding cone (333) is fixedly connected with a push rod (334), and the push rod (334) is located directly below the cloth bag.

4. The rice seed storage and drying device according to claim 3, characterized in that: A vertical push piece (34) is arranged below the sliding cone (333), and the vertical push piece (34) includes a guide chamber (341) and an impeller component (342). The guide chamber (341) spirals upward on the inner wall of the drying cylinder (31), wherein the bottom end of the guide chamber (341) is connected to the conveying module (5), and the top end of the guide chamber (341) is sealed. The hot air delivered by the conveying module (5) is discharged from the side air outlet of the guide chamber (341), and the discharged hot air blows the impeller component (342) to rotate. The rotating impeller component (342) can drive the sliding cone (333) to move up and down by using the upper end protrusion to cooperate with the groove below the sliding cone (333).

5. The rice seed storage and drying device according to claim 1, characterized in that: The circulation module (4) comprises a circular tube (41), wherein the circular tube (41) passes through the bottom wall of the drying cylinder (31) and is fixed, the bottom end of the circular tube (41) is sealed, a discharge port is provided on the surface of the circular tube (41) located outside the drying cylinder (31), a blocking sheet is clamped on the surface of the discharge port, an auger (42) is rotatably connected inside the circular tube (41), wherein a motor is fixedly installed at the bottom of the circular tube (41), the motor drives the auger (42) to rotate, and a feed port is provided on the surface of the circular tube (41) near the bottom wall of the drying cylinder (31), the rice seeds enter the circular tube (41) along the feed port and are augered by the rotating auger The auger (42) is used to transport the rice seeds upward. The upper end of the circular tube (41) is rotatably covered with a sleeve (44) with a sealed upper end. The upper end of the circular tube (41) is provided with two discharge grooves (43). The sleeve (44) is provided with a discharge cavity (45) at a position relative to the discharge groove (43). When the discharge cavity (45) is aligned with the position of the discharge groove (43), the rice seeds transported by the auger (42) enter the discharge cavity (45) from the discharge groove (43) and then fall freely from the bottom of the discharge cavity (45). The side of the sleeve (44) is also connected with a discharge pipe (46), wherein the free end of the discharge pipe (46) is inclined downward and extends out of the drying cylinder (31).

6. The rice seed storage and drying device according to claim 1, characterized in that: The circulation component (24) includes a first circulation air pipe (241), a switching member (243), a second circulation air pipe (244), and an ejection pipe (246), wherein the first circulation air pipe (241) is connected to the collecting pipe (226), the switching member (243) connects the first circulation air pipe (241) and the second circulation air pipe (244), the ejection pipe (246) is inserted into the smoke exhaust pipe (232), and the ejection pipe (246) and the second circulation air pipe (244) are connected.

7. The rice seed storage and drying device according to claim 6, characterized in that: The port of the smoke exhaust pipe (232) is provided with a heating component (25), and the heating component (25) includes a smoke outlet hood (251) connected to the port of the smoke exhaust pipe (232). The port of the ejection pipe (246) is connected to a conical tube (252), and a plug cone (253) is provided in the inner cavity gap of the conical tube (252). The port of the plug cone (253) is rotatably connected to a shaft rod (254), wherein the shaft rod (254) is fixed in the smoke outlet hood (251), and an exhaust window (255) is provided on the side of the smoke outlet hood (251).

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