High-efficiency grain drying device for biomass energy

Abstract

The present application relates to drying equipment technical field, especially in kind of biomass energy's high -efficient grain drying device, contain the following characteristics: heating shell and bottom plate fixed connection; The air drying shell is arranged at the top of the bottom plate; The drying shell is arranged at the top of the heating shell and communicates with the inner chamber of the heating shell; The transmission shell is arranged on the drying shell and the air drying shell and communicates with the inner chamber of the drying shell, the air drying shell; The roller rotation is arranged on the inner wall of the drying shell; The drying module is arranged on the drying shell and is connected with the roller; The heating module is arranged in the inner chamber of the drying shell and the heating shell; The air drying module is arranged in the inner chamber of the air drying shell and the transmission shell and is connected with the heating module; The grain transport module connects the roller and the air drying module, and is used for transferring the grain in the roller to the air drying module. The present application reduces the harm caused by the tail gas generated in the biomass fuel combustion process to the environment and personal health, and has the characteristics of high drying efficiency.

Description

Technical Field

[0001] This invention relates to the field of drying equipment technology, and in particular to a high-efficiency grain drying device based on biomass energy. Background Technology

[0002] Biomass fuel refers to fuel made by burning biomass materials, generally referring to agricultural and forestry waste such as straw, sawdust, sugarcane bagasse, and rice husks.

[0003] Traditional grain drying equipment mostly uses coal-fired furnaces for heating and employs natural ventilation under the grate to output hot air. During operation, exhaust gases are generated, which harm human health and pollute the environment. Summary of the Invention

[0004] In view of the defects of existing grain drying devices that pollute the environment and endanger human health, the present invention provides a high-efficiency grain drying device based on biomass energy, comprising: a drying shell, a heating shell, a transmission shell, an air drying shell, a bottom plate, a drying module, a drum, several first air holes, a grain conveying module, a heating module, and an air drying module.

[0005] The heating housing is located on one side of the base plate and is fixedly connected to the base plate;

[0006] The air-drying shell is located on top of the base plate;

[0007] The drying shell is located on top of the heating shell, and the inner cavity of the drying shell is connected to the inner cavity of the heating shell. The inner cavity of the drying shell is cylindrical.

[0008] The transmission housing is installed on the drying housing and the air-drying housing, and the inner cavity of the transmission housing is connected to the inner cavities of the drying housing and the air-drying housing.

[0009] The drum is mounted on the inner wall of the drying shell. The shape of the drum matches the inner cavity of the drying shell. The inner cavity of the drum is cylindrical and is used to support the grain.

[0010] Several first air holes are opened on the four sides of the drum, and the diameter of the first air hole is smaller than the outer diameter of any grain.

[0011] The drying module is installed on the drying shell and is connected to the drum to dry the grain in the drum.

[0012] The heating module is installed in the inner cavity of the drying shell and the heating shell, and is used to dry the grain in the inner cavity of the drum;

[0013] The drying module is located inside the drying shell and the transmission shell. The drying module is connected to the heating module and is used to dry grains.

[0014] The grain conveying module connects the drum and the drying module, and is used to transfer the grain in the drum to the drying module.

[0015] Furthermore, the drying module includes: a first motor, a first feeding port, a second feeding port, a first feeding cover, a second feeding cover, and several partition components;

[0016] The first motor is fixedly mounted on the outer wall of the drying shell. The actuator of the first motor passes through the outer wall of the drying shell and is connected to the drum to drive the drum to rotate.

[0017] The first feeding port is located on the outer wall of the drying shell and is connected to the inner cavity of the drying shell;

[0018] The second feeding port is located on the outer wall of the drum and is connected to the inner cavity of the drum. When the drum is stationary, the first feeding port and the second feeding port are connected to convey grain into the inner cavity of the drum.

[0019] The first feeding cover is installed at the first feeding port, and the first feeding cover is threadedly connected to the first feeding port;

[0020] The second feeding cover is installed at the second feeding port, and the second feeding cover is threadedly connected to the second feeding port.

[0021] Several baffle components are arranged in the inner cavity of the drum, with the distance between adjacent baffle components being greater than zero, to separate the grain in the inner cavity of the drum.

[0022] Furthermore, the partition assembly includes: a pair of hinge seats, a hinge shaft, and a baffle;

[0023] A pair of hinged seats are fixedly installed on the four side walls of the inner cavity of the drum;

[0024] The hinge shaft is rotatably connected to a pair of hinge seats;

[0025] The head end of the baffle is rotatably connected to the hinge shaft, the slit between the tail end of the baffle and the inner wall of the drum is greater than zero, and the length of the baffle is greater than half the inner diameter of the drum, used to separate the grain in the drum.

[0026] Furthermore, the heating module includes: a pair of first partitions, a second partition, a first air inlet, a second air inlet, a radiation component, a pair of water tanks, an air inlet, a fan, and a return interface;

[0027] A pair of first partitions are arranged in parallel in the inner cavity of the heating shell. The pair of first partitions divide the inner cavity of the heating shell into a combustion chamber, a water heating chamber and a remaining chamber. The combustion chamber is located on the lower side of the pair of first partitions, the water heating chamber is located between the pair of first partitions, and the remaining chamber is located on the upper side of the pair of first partitions. The water heating chamber is pre-stored with an aqueous solution.

[0028] The second partition is disposed in the inner cavity of the heating shell. The second partition is arranged in parallel with any of the first partitions. The second partition divides the remaining cavity into an air heating cavity and a drying cavity. The air heating cavity is located between a pair of first partitions and second partitions. The drying cavity is located on the upper side of the second partition and is connected to the inner cavity of the drying shell.

[0029] The first air inlet is located on the second partition and is used to connect the air heating chamber and the drying chamber.

[0030] The second air intake opening is located on the first partition, and the second air intake opening connects the air heating chamber and the water heating chamber.

[0031] A pair of water tanks are installed on the outer wall of the heating shell, and the inner cavities of the pair of water tanks are respectively connected to the water heating chamber;

[0032] The radiant assembly is installed inside the heating shell and the drying shell, and is connected to a pair of water tanks;

[0033] The air inlet is located on the outer wall of the heating shell and is connected to the combustion chamber.

[0034] The fan is located at the air inlet and is used to blow air into the combustion chamber;

[0035] The reflux interface is located on the outer wall of the heating housing. The input end of the reflux interface is connected to the air drying module, and the output end of the reflux interface passes through the outer wall of the heating housing and is connected to the air heating chamber.

[0036] Furthermore, the radiation assembly includes: a plurality of first guide pipes, a first collector pipe, a first cooler, a plurality of second guide pipes, a second collector pipe, and a second cooler;

[0037] The first collector pipe is installed in the inner cavity of the drying shell, and the output end of the first collector pipe passes through the inner wall of the drying shell and the outer wall of any water tank in sequence, connecting to the inner cavity of any water tank.

[0038] Several first guide tubes are arranged in the inner cavities of the heating shell and the drying shell. The input end of any first guide tube is connected to the combustion chamber, and the output end of any first guide tube passes through a pair of first partitions and a second partition in sequence and is connected to the input end of the first collector tube. The first guide tubes are arranged in a serpentine pattern in the inner cavity of the heating shell and in a ring in the inner cavity of the drying shell. The first guide tubes located in the inner cavity of the drying shell surround the drum inside the first guide tube and are used to dry the grain in the inner cavity of the drum.

[0039] The first cooler is located at the output end of the first manifold and is used to cool the fluid flowing through the first manifold.

[0040] The second manifold is installed in the inner cavity of the drying shell, and the output end of the second manifold passes through the inner wall of the drying shell and the outer wall of the other water tank in sequence, connecting to the inner cavity of the other water tank.

[0041] Several second guide tubes are arranged in the inner cavities of the heating shell and the drying shell. The input end of any second guide tube is connected to the water heating chamber, and the output end of any second guide tube passes through the first partition and the second partition located between the air heating chamber and the water heating chamber in sequence and is connected to the input end of the second collector tube. The second guide tubes are arranged in a serpentine pattern in the inner cavity of the heating shell and in a ring in the inner cavity of the drying shell. The second guide tubes located in the inner cavity of the drying shell surround the drum inside the second guide tubes and are used to dry the grain in the inner cavity of the drum.

[0042] The second cooler is located at the output end of the second manifold and is used to cool the fluid flowing through the second manifold.

[0043] Furthermore, the radiation assembly also includes: several guide plates disposed within the air heating chamber to divide the air heating chamber into air channels, the air channels being arranged in a serpentine pattern within the air heating chamber, the input end of the air channels being located at the bottom of the air heating chamber and communicating with the output end of the return port and the second air inlet opening, and the output end of the air channels being located at the top of the air heating chamber and communicating with the first air inlet opening.

[0044] Furthermore, the air-drying module includes: a support plate, a connecting plate, a feeding channel, a feeding motor, a screw rod, two sets of grain storage components, a transmission motor, a mounting housing, a return channel, a return pipe, and a ventilation component;

[0045] The support plate is vertically installed in the inner cavity of the drying shell. The distance between the bottom of the support plate and the inner wall of the bottom of the drying shell is greater than zero. The two side walls of the support plate in the Y-axis direction are in close contact with the inner wall of the drying shell, and the two side walls of the support plate in the X-axis direction are equidistant from the inner wall of the drying shell.

[0046] The connecting plate is set on the side wall of the bearing plate and is connected to the inner wall of the drying shell. The connecting plate and the bearing plate separate the inner cavity of the drying shell into a U-shaped flow channel. The input end of the U-shaped flow channel is connected to the inner cavity of the transmission shell.

[0047] The feeding channel is located inside the bearing plate and is arranged along the axial direction of the bearing plate. The bottom end of the feeding channel is connected to the grain conveying module.

[0048] The screw is rotatably installed in the feeding channel, and the screw is arranged along the axial direction of the feeding channel;

[0049] The feeding motor is fixedly mounted on the top of the support plate. The actuator of the feeding motor passes through the outer wall of the support plate and is connected to the screw rod to drive the screw rod to rotate.

[0050] Two sets of grain storage components are symmetrically arranged on the two side walls of the bearing plate, and the two sets of grain storage components are located between the inner wall of the connecting plate and the bottom of the inner cavity of the drying shell;

[0051] The mounting housing is fixedly installed on the outer wall of the air-drying housing;

[0052] The reflux channel is located inside the connecting plate. The input end of the reflux channel is exposed on the bottom surface of the connecting plate, and the output end of the reflux channel is exposed on the outer surface of the connecting plate and communicates with the output end of the U-shaped flow channel.

[0053] The inlet of the reflux pipe passes through the outer wall of the drying shell and is fixedly connected to the outlet of the reflux channel; the outlet of the reflux pipe is connected to the heating module.

[0054] The drive motor is fixedly mounted on the outer wall of the mounting housing. The actuator of the drive motor passes through the outer wall of the mounting housing and protrudes from the inner surface of the mounting housing. The actuator of the drive motor is connected to two sets of grain storage components.

[0055] The ventilation assembly is mounted on the transmission housing and is connected to the roller.

[0056] Furthermore, the ventilation assembly includes: a first drive shaft, a ventilation duct, a first gear, an acceleration gear, a second gear, a second drive shaft, and fan blades;

[0057] The first drive shaft is fixedly mounted on the drum. The first drive shaft is aligned with the axis of the drum. The output end of the first drive shaft passes through the inner wall of the drying shell and the outer wall of the drive shell, protruding from the inner surface of the drive shell.

[0058] The ventilation pipe is installed inside the drum, and the output end of the ventilation pipe passes through the inner wall of the drum, the inner wall of the drying shell, and the outer wall of the transmission shell in sequence, communicating with the inner cavity of the transmission shell.

[0059] The first gear is fixedly mounted at the output end of the first transmission shaft, and the first gear is aligned with the axis of the first transmission shaft.

[0060] The second drive shaft is rotatably mounted on the inner wall of the transmission housing. The input end of the second drive shaft is located in the inner cavity of the transmission housing, and the output end of the second drive shaft passes through the inner wall of the transmission housing and the outer wall of the drying housing in sequence, protruding from the inner surface of the drying housing.

[0061] The second gear is located at the input end of the second drive shaft. The second gear has the same axis as the second drive shaft and is used to drive the second drive shaft to rotate.

[0062] The accelerator gear is mounted on the inner wall of the transmission housing. The input end of the accelerator gear meshes with the first gear, and the output end of the accelerator gear meshes with the second gear.

[0063] The fan blades are located at the output end of the second drive shaft.

[0064] Furthermore, the grain storage assembly includes: several grain storage troughs, several sets of second air holes, several screws, several push plates, several screw holes, several sets of short rods, several first transmission belts, second transmission belts and grain outlets;

[0065] Several grain storage troughs are centrally located on any side wall of the support plate. The width of any grain storage trough is equal to the distance between the side wall of the support plate and the inner wall of the drying shell in the X-axis direction of the support plate. Any grain storage trough is parallel to the bottom of the drying shell. Several grain storage troughs are equidistantly distributed along the Z-axis direction of the support plate. The length of several grain storage troughs increases sequentially from the top to the bottom of the support plate.

[0066] Several sets of second air holes are respectively set at the bottom of several grain storage tanks, and any one of the second air holes penetrates the outer wall of the grain storage tank and communicates with the inner cavity of the grain storage tank.

[0067] Several push plates are respectively and movable at the openings of several grain storage troughs;

[0068] Several screw holes are respectively set on several push plates;

[0069] Several screws are rotatably mounted on the inner wall of the drying housing. The driving ends of several screws penetrate the inner wall of the drying housing and protrude from the inner surface of the mounting housing. The actuating ends of several screws are inserted into several screw holes, and the actuating ends of the screws are threadedly connected to the screw holes.

[0070] Several sets of short rods are respectively set at the bottom of several push plates, and the bottom of any short rod abuts against the inner surface of the corresponding grain storage trough;

[0071] Several first transmission belts are mounted on several screws, and the two ends of any one first transmission belt are respectively connected to the driving ends of any pair of adjacent screws to drive the several screws to rotate synchronously.

[0072] The two ends of the second transmission belt are respectively connected to either of the screws and the actuator of the transmission motor, and are used to drive either screw to rotate;

[0073] The grain outlet is located on the side wall of the support plate. The input end of the grain outlet passes through the outer wall of the support plate and connects to the top of the feeding channel. The output end of the grain outlet is connected to the grain storage tank located on the top layer.

[0074] Furthermore, the grain conveying module includes: a discharge port, a grain conveying channel, a cylinder, and a gate;

[0075] The discharge port is located on the outer wall of the drum and is connected to the inner cavity of the drum.

[0076] The input end of the grain conveying channel penetrates the outer wall of the drying shell and is exposed on the inner surface of the drying shell. The output end of the grain conveying channel is connected to the air drying module. When the drum is stationary, the input end of the grain conveying channel is connected to the discharge port. The input end of the grain conveying channel is located at the bottom of the inner cavity of the drying shell.

[0077] The cylinder is fixedly mounted on the outer wall of the drum, and the cylinder is located on one side of the discharge port;

[0078] The gate is slidably mounted on the outer wall of the drum, and the position of the gate matches the discharge port to control the opening and closing of the discharge port.

[0079] The efficient grain drying device for biomass energy according to the embodiments of the present invention has the following beneficial effects: the device uses the heating module and the air drying module to perform internal airflow circulation, which reduces the pollution of the environment caused by the exhaust gas generated during the combustion of biomass fuel and the harm to the health of users, and has the characteristics of high drying efficiency.

[0080] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0081] Figure 1 This is a perspective view from the right side according to an embodiment of the present invention;

[0082] Figure 2 This is a perspective view from the left side according to an embodiment of the present invention;

[0083] Figure 3 This is an exploded view of the structure according to an embodiment of the present invention;

[0084] Figure 4 This is a schematic diagram of the assembly of the heating module and the drying module according to an embodiment of the present invention;

[0085] Figure 5 This is an exploded view of the structure of the partition assembly according to an embodiment of the present invention;

[0086] Figure 6 This is a schematic diagram of the internal structure of the heating housing according to an embodiment of the present invention;

[0087] Figure 7 This is a schematic diagram of the assembly of the first guide pipe, the first collector pipe, and the first cooler according to an embodiment of the present invention;

[0088] Figure 8 This is a schematic diagram of the assembly of the second guide pipe, the second collector pipe, and the second cooler according to an embodiment of the present invention;

[0089] Figure 9 This is a schematic diagram of the assembly of the guide plate according to an embodiment of the present invention;

[0090] Figure 10 This is a perspective view from the right side of an embodiment of the present invention (the air-drying housing and the transmission housing are rendered with a perspective effect).

[0091] Figure 11 This is an assembly diagram of the air-drying module according to an embodiment of the present invention (the ventilation component, grain storage component, and return pipe are hidden).

[0092] Figure 12 for Figure 11 A magnified view of a portion of region B in the middle;

[0093] Figure 13 for Figure 10 A magnified view of a portion of region A in the middle;

[0094] Figure 14 This is a perspective view from the left side according to an embodiment of the present invention (the transmission housing and the air-drying housing are rendered with transparency, and the side walls of the drying housing and the drum are hidden).

[0095] Figure 15 for Figure 14 A magnified view of a portion of region E in the middle;

[0096] Figure 16 This is an exploded view of the structure of a grain storage component according to an embodiment of the present invention;

[0097] Figure 17 for Figure 16 A magnified view of a portion of region D in the middle;

[0098] Figure 18 for Figure 16 A magnified view of a portion of region C in the middle;

[0099] Figure 19 This is a schematic diagram of the assembly of the grain storage tank and the supporting plate according to an embodiment of the present invention;

[0100] Figure 20 This is an exploded view of the grain transport module according to an embodiment of the present invention. Detailed Implementation

[0101] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.

[0102] First, combine Figures 1-20 This invention describes a high-efficiency grain drying device for biomass energy, which is used for drying grains and has a wide range of applications.

[0103] like Figures 1-3 As shown in Figure 5, the high-efficiency grain drying device for biomass energy in this embodiment of the invention includes: a drying shell 1, a heating shell 2, a transmission shell 3, an air-drying shell 4, a bottom plate 5, a drying module, a drum 6, several first air holes 7, a grain conveying module, a heating module, and an air-drying module.

[0104] Specifically, such as Figures 1-3 As shown in Figure 5, the heating shell 2 is located on one side of the base plate 5 and is fixedly connected to the base plate 5; the air-drying shell 4 is located on the top of the base plate 5; the drying shell 1 is located on the top of the heating shell 2 and is connected to the inner cavity of the heating shell 2. The inner cavity of the drying shell 1 is cylindrical and is not sealed to ensure the internal and external air pressure balance of the device; the transmission shell 3 is located on the drying shell 1 and the air-drying shell 4, and the inner cavity of the transmission shell 3 is connected to the inner cavities of the drying shell 1 and the air-drying shell 4; the drum 6 is rotatably located on the inner wall of the drying shell 1, and the shape of the drum 6 matches the inner cavity of the drying shell 1. The inner cavity of the drum 6 is cylindrical and is used to hold the grain; several first air holes 7 are opened on the four sides of the drum 6. The diameter of the first air holes 7 is smaller than the outer diameter of any grain, which increases the contact area between the grain and the air in the drum 6 and improves the drying efficiency of the grain in the drum 6; the drying module is located on the drying shell 1 and is connected to the drum 6 for drying the grain in the drum 6.

[0105] Furthermore, such as Figures 1-4 As shown, the drying module includes: a first motor 81, a first feeding port 82, a second feeding port 83, a first feeding cover 84, a second feeding cover 85, and several partition components; the first motor 81 is fixedly mounted on the outer wall of the drying housing 1, and the actuator of the first motor 81 penetrates through the outer wall of the drying housing 1 and is connected to the drum 6 to drive the drum 6 to rotate; the first feeding port 82 is opened on the outer wall of the drying housing 1 and communicates with the inner cavity of the drying housing 1; the second feeding port 83 is opened on the outer wall of the drum 6 and communicates with the inner cavity of the drying housing 1. The inner cavity of the drum 6 is interconnected. When the drum 6 is stationary, the first feeding port 82 is connected to the second feeding port 83 to convey grain into the inner cavity of the drum 6. The first feeding cover 84 is installed at the first feeding port 82 and is threadedly connected to the first feeding port 82. The second feeding cover 85 is installed at the second feeding port 83 and is threadedly connected to the second feeding port 83. Several baffle components are installed in the inner cavity of the drum 6, and the distance between adjacent baffle components is greater than zero to baffle the grain in the inner cavity of the drum 6.

[0106] Before the equipment is started, the drum 6 is stationary. Users can add the grain to be dried into the inner cavity of the drum 6 by opening the first feeding cover 84 and the second feeding cover 85 and the first feeding port 82 and the second feeding port 83.

[0107] When the equipment is running, the first motor 81 drives the drum 6 to rotate in the inner cavity of the drying shell 1. During the rotation, the drum 6 causes the grain stored in the inner cavity of the drum 6 to tumble.

[0108] Furthermore, such as Figures 1-5 As shown, the partition assembly includes: a pair of hinge seats 851, a hinge shaft 852, and a baffle 853; the pair of hinge seats 851 are fixedly disposed on the four sides of the inner cavity of the drum 6; the hinge shaft 852 is rotatably connected to the pair of hinge seats 851; the head end of the baffle 853 is rotatably connected to the hinge shaft 852, the slit between the tail end of the baffle 853 and the inner wall of the drum 6 is greater than zero, and the length of the baffle 853 is greater than half the inner diameter of the drum 6, for partitioning the grain in the drum 6.

[0109] During the tumbling process of the grain stored in the inner cavity of the drum 6, the baffle 853 swings under the pressure of the grain, and the grain rolls on the baffle 853 of the multiple sets of baffle components. By setting multiple sets of baffle components, the baffle 853 in each set of baffle components blocks part of the grain stored in the inner cavity of the drum 6, so that the grain stored in the inner cavity of the drum 6 can be separated by the baffle 853 in layers during the rotation of the drum 6, thereby increasing the contact area between the grain stored in the inner cavity of the drum 6 and the air, and improving the drying efficiency of the device.

[0110] Specifically, such as Figures 1-4 As shown, the heating module is installed in the inner cavity of the drying shell 1 and the heating shell 2, and is used to dry the grain in the inner cavity of the drum 6.

[0111] Furthermore, such as Figure 3 , 4As shown in Figure 6, the heating module includes: a pair of first partitions 91, a second partition 92, a first air inlet 93, a second air inlet 94, a radiation component, a pair of water tanks 95, an air inlet 96, a fan 97, and a return port 98; the pair of first partitions 91 are arranged in parallel in the inner cavity of the heating housing 2, dividing the inner cavity of the heating housing 2 into a combustion chamber 21, a water heating chamber 22, and a remaining cavity. The combustion chamber 21 is located below the pair of first partitions 91, and the water heating chamber 22 is located below the pair of first partitions 91. Between them, the remaining cavity is located above a pair of first partitions 91, and the water heating cavity 22 is pre-stored with an aqueous solution; the second partition 92 is disposed in the inner cavity of the heating shell 2, and the second partition 92 is arranged parallel to any of the first partitions 91. The second partition 92 divides the remaining cavity into an air heating cavity 23 and a drying cavity 24. The air heating cavity 23 is located between the pair of first partitions 91 and the second partition 92, and the drying cavity 24 is located above the second partition 92 and communicates with the inner cavity of the drying shell 1; the first air inlet 93 A second partition 92 is provided to connect the air heating chamber 23 and the drying chamber 24; a second air inlet 94 is provided on the first partition 91, connecting the air heating chamber 23 and the water heating chamber 22; a pair of water tanks 95 are provided on the outer wall of the heating housing 2, and the inner cavities of the pair of water tanks 95 are respectively connected to the water heating chamber 22; a radiation assembly is provided in the inner cavities of the heating housing 2 and the drying housing 1, and the radiation assembly is connected to the pair of water tanks 95; an air inlet 96 is provided on the outer wall of the heating housing 2, and the air inlet 96 is connected to the... Combustion chamber 21 is connected; fan 97 is set at air inlet 96 to blow air into combustion chamber 21. This device improves the combustion efficiency of biomass fuel by sending fresh air into the combustion chamber through air inlet 96 and fan 97, thereby improving the drying efficiency of the device; return port 98 is set on the outer wall of heating shell 2. The input end of return port 98 is connected to the output end of return pipe 109 in air drying module, and the output end of return port 98 passes through the outer wall of heating shell 2 and is connected to air heating chamber 23.

[0112] Furthermore, such as Figure 4 , 6As shown in Figure 8, the radiation assembly includes: several first guide pipes 991, a first collector pipe 992, a first cooler 993, several second guide pipes 994, a second collector pipe 995, and a second cooler 996; the first collector pipe 992 is disposed in the inner cavity of the drying shell 1, and the output end of the first collector pipe 992 passes through the inner wall of the drying shell 1 and the outer wall of any water tank 95 in sequence, connecting to the inner cavity of any water tank 95; the several first guide pipes 991 are disposed in the inner cavities of the heating shell 2 and the drying shell 1, the input end of any first guide pipe 991 is connected to the combustion chamber 21, and the output end of any first guide pipe 991 passes through a pair of first partitions 91 and a second partition in sequence. 92 is connected to the input end of the first manifold 992. The first guide pipe 991 is arranged in a serpentine pattern in the inner cavity of the heating shell 2 and in a ring pattern in the inner cavity of the drying shell 1. The first guide pipe located in the inner cavity of the drying shell 1 surrounds the inner side of the roller 6. The first cooler 993 is located at the output end of the first manifold 992 and is used to cool the fluid flowing through the first manifold 992. The second manifold 995 is located in the inner cavity of the drying shell 1. The output end of the second manifold 995 passes through the inner wall of the drying shell 1 and the outer wall of another water tank 95, connecting to the inner cavity of the other water tank 95. Several second guide pipes 994 are arranged in the heating shell 2. In the inner cavities of housing 2 and drying housing 1, the input end of any second guide pipe 994 is connected to the water heating chamber 22, and the output end of any second guide pipe 994 sequentially passes through the first partition 91 and the second partition 92 located between the air heating chamber 23 and the water heating chamber 22 and is connected to the input end of the second collector pipe 995. The second guide pipes 994 are arranged in a serpentine pattern in the inner cavity of heating housing 2 and in a ring in the inner cavity of drying housing 1. The second guide pipes 994 located in the inner cavity of drying housing 1 surround the inner side of the drum 6 for drying the grain in the inner cavity of the drum 6; the second cooler 996 is located at the output of the second collector pipe 995. The first flow guide pipe 991 and the second flow guide pipe 994 in the inner cavity of the heating shell 2 are designed in a serpentine arrangement, which increases the heat exchange area of ​​the first flow guide pipe 991 and the second flow guide pipe 994 in the inner cavity of the heating shell 2, improves the heating rate of the inner cavity of the heating shell 2, and thus improves the drying efficiency of the device. The second flow guide pipe 991 and the second flow guide pipe 994 in the inner cavity of the drying shell 1 are designed in a ring shape, and the drum 6 is surrounded on the inner side of the first flow guide pipe 991 and the second flow guide pipe 994, thereby increasing the heating area of ​​the grain in the drum 6 and improving the drying efficiency of the device.

[0113] Furthermore, such as Figure 4 , 6As shown in Figure 9, the radiation assembly also includes: several guide plates 997, which are disposed in the air heating chamber 23 to divide the air heating chamber 23 into air channels 231. The air channels 231 are arranged in a serpentine pattern in the air heating chamber 23. The input end of the air channel 231 is located at the bottom of the air heating chamber 23 and is connected to the output end of the return port 98 and the second air inlet opening. The output end of the air channel 231 is located at the top of the air heating chamber 23 and is connected to the first air inlet opening 93. This device increases the residence time of the gas flowing through the air heating chamber 23 through the air channels 231, thereby achieving sufficient heating of the gas flowing through the air heating chamber 23.

[0114] When the equipment is running, the user burns biomass fuel in the combustion chamber 21 to generate heat. The heat released by the combustion of biomass fuel heats the aqueous solution stored in the water heating chamber 22. The smoke generated during the combustion of biomass fuel enters the first guide pipe 991 along with the hot air and flows from the input end to the output end of the first guide pipe 991. During this process, the first guide pipe 991 releases heat in the water heating chamber 22, the air heating chamber 23, the drying chamber 24, and the inner cavity of the drying shell 1, accelerating the temperature rise of the aqueous solution in the water heating chamber 22 and the air in the air heating chamber 23, thus drying the grain in the drum 6. The gas mixture in the first guide pipe 991 passes through the first... A stream flows into the water tank 95 through a manifold 992 and ultimately into the aqueous solution within the water heating chamber 22. The aqueous solution pre-stored in the water heating chamber 22 accelerates the settling of smoke particles in the gas mixture output through the first guide pipe 991. Gas from the gas mixture escapes from the aqueous solution and mixes with the air in the water heating chamber 22, purifying the exhaust gas produced by biomass combustion. During the flow of the gas mixture output from the first guide pipe 991 through the first manifold 992, the first cooler 993 cools it down to prevent the drying temperature of the device from becoming too high. Part of the steam generated by the heated aqueous solution in the water heating space enters the second guide pipe 994 along with the hot air in the water heating chamber 22, and is then transported by the second guide pipe... The gas flows from the input end of the flow pipe 994 to the output end of the second flow pipe 994. During this process, the second flow pipe 994 releases heat in the inner cavities of the air heating chamber 23, the drying chamber 24, and the drying shell 1, accelerating the temperature rise of the inner cavities of the air heating chamber 23, the drying chamber 24, and the drying shell 1, thus drying the grain in the drum 6. The gas mixture output from the second flow pipe 994 flows into the water tank 95 through the second collection pipe 995 and finally into the aqueous solution in the water heating chamber 22. Another part of the steam flows into the input end of the air flow channel 231 inside the air heating chamber 23 along with the hot air through the second air inlet opening 94, accelerating the temperature rise of the internal environment of the air heating chamber 23. The gas flows along the airflow channel 231 from the input end to the output end of the airflow channel 231, until it flows into the drying chamber 24 through the first air inlet 93, and finally enters the inner cavity of the drying shell 1 through the drying chamber 24 to dry the grain in the drum 6. This device achieves the circulation filtration of the exhaust gas generated by the combustion of biomass fuel by assembling the first guide pipe 991, the second guide pipe 994, the first collector pipe 992 and the second collector pipe 995, which minimizes the pollution of the exhaust gas generated by the combustion of biomass fuel to the environment and the harm to the health of users, and also minimizes the pollution of the grain caused by the exhaust gas generated by the combustion of biomass fuel.

[0115] Specifically, such as Figure 10As shown, the drying module is installed in the inner cavity of the drying shell 4 and the transmission shell 3. The drying module is connected to the heating module and is used to dry grains. This device uses the cooperation of the drying module and the heating module to achieve internal air circulation, which further reduces the pollution of the environment caused by the exhaust gas generated by the combustion of biomass fuel and the harm to the health of users.

[0116] Furthermore, such as Figures 10-12 As shown in Figures 14, 16, and 18, the air-drying module includes: a support plate 101, a connecting plate 102, a feeding channel 103, a feeding motor 104, a screw rod 105, two sets of grain storage components, a transmission motor 106, a mounting housing 107, a return channel 108, a return pipe 109, and a ventilation component; the support plate 101 is vertically arranged in the inner cavity of the air-drying housing 4, and the distance between the bottom of the support plate 101 and the inner wall of the bottom of the air-drying housing 4 is greater than zero. The two side walls of the support plate 101 in the Y-axis direction are in close contact with the inner wall of the air-drying housing 4, and the side walls of the support plate 101 in the X-axis direction are in close contact with the inner wall of the air-drying housing 4. The distance between the two side walls of plate 101 and the inner wall of the drying shell 4 is equal; the connecting plate 102 is disposed on the side wall of the bearing plate 101, and the connecting plate 102 is connected to the inner wall of the drying shell 4. The connecting plate 102 and the bearing plate 101 divide the inner cavity of the drying shell 4 into a U-shaped flow channel 41, and the input end of the U-shaped flow channel 41 is connected to the inner cavity of the transmission shell 3; the feeding channel 103 is disposed inside the bearing plate 101, and the feeding channel 103 is arranged along the axial direction of the bearing plate 101. The bottom end of the feeding channel 103 is connected to the grain conveying module; the screw rod 105 is rotatably disposed in the feeding channel 103, and the screw rod 105 is arranged along the axial direction of the bearing plate 101. The feeding channel 103 is axially arranged; the feeding motor 104 is fixedly mounted on the top of the support plate 101, and the actuator of the feeding motor 104 passes through the outer wall of the support plate 101 and is connected to the screw rod 105 to drive the screw rod 105 to rotate; two sets of grain storage components are symmetrically arranged on the two side walls of the support plate 101, and the two sets of grain storage components are located between the connecting plate 102 and the inner wall of the bottom of the inner cavity of the drying shell 4; the mounting shell 107 is fixedly mounted on the outer wall of the drying shell 4; the return channel 108 is located inside the connecting plate 102, and the input end of the return channel 108 is exposed on the bottom surface of the connecting plate 102. The output end of the reflux channel 108 is exposed on the outer surface of the connecting plate 102 and communicates with the output end of the U-shaped flow channel 41; the input end of the reflux pipe 109 penetrates the outer wall of the drying housing 4 and is fixedly connected to the output end of the reflux channel 108, and the output end of the reflux pipe 109 is connected to the heating module; the drive motor 106 is fixedly mounted on the outer wall of the mounting housing 107, the actuating end of the drive motor 106 penetrates the outer wall of the mounting housing 107 and protrudes from the inner surface of the mounting housing 107, and the actuating end of the drive motor 106 is connected to two sets of grain storage components; the ventilation component is mounted on the drive housing 3 and is connected to the drum 6.

[0117] Furthermore, such as Figure 10 , 13 As shown in Figure 15, the ventilation assembly includes: a first drive shaft 1010, a ventilation pipe 1011, a first gear 1012, an acceleration gear 1013, a second gear 1014, a second drive shaft 1015, and a fan blade 1016; the first drive shaft 1010 is fixedly mounted on the drum 6, and the first drive shaft 1010 and the drum 6 have the same axis; the output end of the first drive shaft 1010 passes through the inner wall of the drying housing 1 and the outer wall of the transmission housing 3, protruding from the inner surface of the transmission housing 3; the ventilation pipe 1011 is disposed inside the drum 6, and the output end of the ventilation pipe 1011 passes through the inner wall of the drum 6, the inner wall of the drying housing 1, and the outer wall of the transmission housing 3, communicating with the inner cavity of the transmission housing 3; the first gear 1012 is fixedly mounted on the output end of the first drive shaft 1010, and the first gear 1012 and the first gear 1013 are connected to the first drive shaft 1014. The drive shafts 1010 and 1015 are rotatably mounted on the inner wall of the drive housing 3. The input end of the second drive shaft 1015 is located in the inner cavity of the drive housing 3, and the output end of the second drive shaft 1015 passes through the inner wall of the drive housing 3 and the outer wall of the drying housing 4, protruding from the inner surface of the drying housing 4. The second gear 1014 is mounted on the input end of the second drive shaft 1015. The second gear 1014 is rotatably mounted on the inner wall of the drive housing 3. The input end of the acceleration gear 1013 meshes with the first gear 1012, and the output end of the acceleration gear 1013 meshes with the second gear 1014. The fan blade 1016 is mounted on the output end of the second drive shaft 1015.

[0118] When the equipment is running, as the drum 6 rotates, the drum 6 drives the first gear 1012 to rotate via the first drive shaft 1010. The first gear 1012 drives the second gear 1014 to rotate via the meshing transmission of the acceleration gear 1013. The second gear 1014 drives the fan blade 1016 to rotate via the second drive shaft 1015. As the fan blade 1016 rotates, it draws the gas out of the inner cavity of the drum 6 through the ventilation pipe 1011 and blows it into the inner cavity of the drying housing 4, forming a drying airflow. After entering the inner cavity of the drying housing 4, the drying airflow flows from the input end of the U-shaped flow channel 41 to the output end of the U-shaped flow channel 41. Finally, the airflow enters the return pipe 109 through the return channel 108, and then flows into the air flow channel 231 in the air heating chamber 23 through the return interface 98, completing the internal circulation of the airflow. During the process of the air-drying airflow flowing through the U-shaped flow channel 41, the air-drying airflow first flows through several grain storage tanks 1011 located on one side of the input end of the U-shaped flow channel 41, and then flows through the gap between the bottom of the support plate 101 and the inner wall of the air-drying shell 4 to the output end of the U-shaped flow channel 41. Finally, it flows through several grain storage tanks 1011 located on one side of the output end of the U-shaped flow channel 41 and enters the input end of the return channel 108 to air-dry the grain stored in the grain storage tanks 1011.

[0119] Furthermore, such as Figure 16 , 17As shown in Figure 19, the grain storage assembly includes: several grain storage troughs 1011, several sets of second air holes 1012, several screws 1013, several push plates 1014, several screw holes 1015, several sets of short rods 1016, several first transmission belts 1017, a second transmission belt 1018, and a grain outlet 1019; the several grain storage troughs 1011 are centrally located on any side wall of the support plate 101, and the width of any grain storage trough 1011 is equal to the distance between the side wall of the support plate 101 in the X-axis direction and the inner wall of the drying shell 4, and any grain storage trough 1011 is flat. Located at the bottom of the drying shell 4, several grain storage troughs 1011 are equidistantly distributed along the Z-axis direction of the support plate 101, with the length of the grain storage troughs 1011 increasing sequentially from the top to the bottom of the support plate 101; several sets of second air holes 1012 are respectively disposed at the bottom of the grain storage troughs 1011, with any one of the second air holes 1012 penetrating through the outer wall of the grain storage trough 1011 and communicating with the inner cavity of the grain storage trough 1011; several push plates 1014 are respectively movably disposed at the openings of the grain storage troughs 1011; several screw holes 1015 are respectively disposed on the push plates 1011. 14. Several screws 1013 are rotatably mounted on the inner wall of the drying housing 4. The driving ends of the screws 1013 protrude through the inner wall of the drying housing 4 and extend out of the inner surface of the mounting housing 107. The actuating ends of the screws 1013 are inserted into several screw holes 1015 and are threadedly connected to the screw holes 1015. Several sets of short rods 1016 are respectively mounted on the bottom of several push plates 1014, and the bottom of any short rod 1016 abuts against the inner surface of the corresponding grain storage trough 1011. Several first transmission belts 1017 are mounted on the screws 1013 and 1014. On 013, the two ends of any one of the first transmission belts 1017 are respectively connected to the driving ends of any pair of adjacent screws 1013, for driving several screws 1013 to rotate synchronously; the two ends of the second transmission belt 1018 are respectively connected to any one screw 1013 and the execution end of the transmission motor 106, for driving any one screw 1013 to rotate; the grain outlet 1019 is set on the side wall of the bearing plate 101, the input end of the grain outlet 1019 penetrates through the outer wall of the bearing plate 101 and communicates with the top of the feeding channel 103, and the output end of the grain outlet 1019 is connected to the grain storage trough 1011 located on the top layer.

[0120] When the equipment is running, the feeding motor 104 starts, driving the screw rod 105 to rotate within the feeding channel 103. The screw rod 105 conveys the grain in the feeding channel 103 from the bottom to the top, allowing it to be output through the grain outlet 1019 into the grain storage trough 1011 located at the top. Simultaneously, the drive motor 106 starts, driving several screw rods 1013 to rotate synchronously via the second drive belt 1018 and several first drive belts 1017. The screw rods 1013 rotate through screw holes 1015. The meshing transmission drives the push plate 1014 to reciprocate along the guide of the screw 1013, causing it to move back and forth along the length of the grain storage trough 1011. The short rod 1016 located at the bottom of the push plate 1014 moves with the push plate 1014, evenly distributing the grain in the grain storage trough 1011. When the grain storage trough 1011 at the top layer is full, the grain in the top grain storage trough 1011 overflows as the push plate 1014 moves, falling into the next layer of grain storage trough 1011, and so on, until several grain storage troughs 1011 are full of grain.

[0121] Specifically, such as Figure 10 , 11 As shown in Figure 20, the grain conveying module connects the drum 6 and the drying module, and is used to transfer the grain in the drum 6 to the drying module.

[0122] Furthermore, such as Figure 20 As shown, the grain conveying module includes: a discharge port 111, a grain conveying channel 112, a cylinder 113, and a gate 114; the discharge port 111 is located on the outer wall of the drum 6 and communicates with the inner cavity of the drum 6; the input end of the grain conveying channel 112 penetrates the outer wall of the drying shell 1 and is exposed on the inner surface of the drying shell 1, and the output end of the grain conveying channel 112 is connected to the air drying module. When the drum 6 is stationary, the input end of the grain conveying channel 112 is connected to the discharge port 111, and the input end of the grain conveying channel 112 is located at the bottom of the inner cavity of the drying shell 1; the cylinder 113 is fixedly installed on the outer wall of the drum 6 and is located on one side of the discharge port 111; the gate 114 is slidably installed on the outer wall of the drum 6, and the position of the gate 114 matches that of the discharge port 111, and is used to control the opening and closing of the discharge port 111.

[0123] The process by which the user transfers the grain in the drum 6 to the feeding channel 103 is as follows: the first motor 81 stops running, the drum 6 stops rotating, the cylinder 113 drives the gate 114 to slide upward, the discharge port 111 opens, and the grain in the drum 6 flows into the input end of the grain conveying channel 112 through the discharge port 111. Under the influence of gravity, the grain in the grain conveying channel 112 slides along the guide of the grain conveying channel 112 to the output end of the grain conveying channel 112, and finally falls into the bottom of the feeding channel 103.

[0124] Above, refer to Figures 1-20 A high-efficiency grain drying device for biomass energy according to an embodiment of the present invention is described, with the following beneficial effects: This device uses the cooperation of a heating module and a drying module to achieve internal airflow circulation, which reduces the pollution of the environment caused by exhaust gas generated during the combustion of biomass fuel and the harm to the health of users, and has the characteristics of high drying efficiency.

[0125] It should be noted that, in this specification, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0126] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above description. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A high-efficiency grain drying device for biomass energy, characterized in that, Includes: drying shell, heating shell, transmission shell, air drying shell, bottom plate, drying module, drum, several first air holes, grain conveying module, heating module and air drying module; The heating housing is disposed on one side of the base plate, and the heating housing is fixedly connected to the base plate; The air-drying shell is disposed on top of the base plate; The drying shell is disposed on top of the heating shell, and the drying shell communicates with the inner cavity of the heating shell. The inner cavity of the drying shell is cylindrical. The transmission housing is disposed on the drying housing and the air-drying housing, and the inner cavity of the transmission housing is in communication with the inner cavities of the drying housing and the air-drying housing; The drum is rotatably mounted on the inner wall of the drying shell. The shape of the drum matches the inner cavity of the drying shell. The inner cavity of the drum is cylindrical and is used to support the grain. The plurality of first air holes are formed on the four sides of the drum, and the diameter of the first air holes is smaller than the outer diameter of any grain. The drying module is mounted on the drying shell and is connected to the drum for drying the grain in the drum. The heating module is disposed in the inner cavity of the drying shell and the heating shell, and is used to dry the grain in the inner cavity of the drum; The air-drying module is disposed in the inner cavity of the air-drying shell and the transmission shell, and the air-drying module is connected to the heating module for air-drying the grain; The grain conveying module connects the drum and the drying module, and is used to transfer the grain in the drum to the drying module. The heating module includes: a pair of first partitions, a second partition, a first air inlet, a second air inlet, a radiation component, a pair of water tanks, an air inlet, a fan, and a return interface; The pair of first partitions are arranged in parallel in the inner cavity of the heating shell. The pair of first partitions divide the inner cavity of the heating shell into a combustion chamber, a water heating chamber and a remaining chamber. The combustion chamber is located on the lower side of the pair of first partitions, the water heating chamber is located between the pair of first partitions, and the remaining chamber is located on the upper side of the pair of first partitions. The water heating chamber is pre-stored with an aqueous solution. The second partition is disposed in the inner cavity of the heating shell. The second partition is arranged in parallel with any of the first partitions. The second partition divides the remaining cavity into an air heating cavity and a drying cavity. The air heating cavity is located between the pair of first partitions and the second partition. The drying cavity is located on the upper side of the second partition and communicates with the inner cavity of the drying shell. The first air inlet is disposed on the second partition and is used to connect the air heating chamber and the drying chamber; The second air inlet is disposed on the first partition, and the second air inlet connects the air heating chamber and the water heating chamber; The pair of water tanks are disposed on the outer wall of the heating shell, and the inner cavities of the pair of water tanks are respectively connected to the water heating cavity; The radiation assembly is disposed in the inner cavity of the heating shell and the drying shell, and the radiation assembly is connected to the pair of water tanks; The air inlet is located on the outer wall of the heating housing and is connected to the combustion chamber; The fan is located at the air inlet and is used to blow air into the combustion chamber; The reflux interface is located on the outer wall of the heating housing. The input end of the reflux interface is connected to the air drying module, and the output end of the reflux interface passes through the outer wall of the heating housing and communicates with the air heating chamber.

2. The high-efficiency grain drying device for biomass energy as described in claim 1, characterized in that, The drying module includes: a first motor, a first feeding port, a second feeding port, a first feeding cover, a second feeding cover, and several partition components; The first motor is fixedly mounted on the outer wall of the drying shell, and the actuator of the first motor passes through the outer wall of the drying shell and is connected to the drum to drive the drum to rotate. The first feeding port is located on the outer wall of the drying shell and communicates with the inner cavity of the drying shell; The second feeding port is opened on the outer wall of the drum and communicates with the inner cavity of the drum. When the drum is stationary, the first feeding port and the second feeding port are connected to convey the grain into the inner cavity of the drum. The first feeding cover is disposed at the first feeding port, and the first feeding cover is threadedly connected to the first feeding port; The second feeding cover is disposed at the second feeding port, and the second feeding cover is threadedly connected to the second feeding port; The plurality of baffle components are disposed in the inner cavity of the drum, and the distance between adjacent baffle components is greater than zero, for the purpose of baffle the grain in the inner cavity of the drum.

3. The high-efficiency grain drying device for biomass energy as described in claim 2, characterized in that, The partition assembly includes: a pair of hinge seats, a hinge shaft, and a baffle; The pair of hinged seats are fixedly disposed on the four side walls of the inner cavity of the drum; The hinge shaft is rotatably connected to the pair of hinge seats; The head end of the baffle is rotatably connected to the hinge shaft, the slit between the tail end of the baffle and the inner wall of the drum is greater than zero, and the length of the baffle is greater than half of the inner diameter of the drum, which is used to separate the grain in the drum.

4. The high-efficiency grain drying device for biomass energy as described in claim 1, characterized in that, The radiation assembly includes: a plurality of first guide pipes, a first collector pipe, a first cooler, a plurality of second guide pipes, a second collector pipe, and a second cooler; The first collecting pipe is disposed in the inner cavity of the drying shell, and the output end of the first collecting pipe passes through the inner wall of the drying shell and the outer wall of any of the water tanks in sequence, connecting to the inner cavity of any of the water tanks. The plurality of first guide tubes are disposed in the inner cavities of the heating shell and the drying shell. The input end of any one of the first guide tubes is connected to the combustion chamber, and the output end of any one of the first guide tubes passes through the pair of first partitions and the second partition in sequence and is connected to the input end of the first collector tube. The first guide tubes are arranged in a serpentine pattern in the inner cavity of the heating shell and in a ring in the inner cavity of the drying shell. The first guide tubes located in the inner cavity of the drying shell surround the drum inside the first guide tube and are used to dry the grain in the inner cavity of the drum. The first cooler is located at the output end of the first manifold and is used to cool the fluid flowing through the first manifold. The second manifold is disposed in the inner cavity of the drying shell, and the output end of the second manifold passes through the inner wall of the drying shell and the outer wall of the other water tank in sequence, connecting to the inner cavity of the other water tank. The plurality of second guide pipes are disposed in the inner cavities of the heating shell and the drying shell. The input end of any second guide pipe is connected to the water heating chamber, and the output end of any second guide pipe passes through the first partition located between the air heating chamber and the water heating chamber and the second partition is connected to the input end of the second collector pipe. The second guide pipes are arranged in a serpentine pattern in the inner cavity of the heating shell and in a ring in the inner cavity of the drying shell. The second guide pipes located in the inner cavity of the drying shell surround the drum inside the second guide pipe for drying the grain in the inner cavity of the drum. The second cooler is located at the output end of the second manifold and is used to cool the fluid flowing through the second manifold.

5. The high-efficiency grain drying device for biomass energy as described in claim 4, characterized in that, The radiation assembly further includes: a plurality of guide plates disposed within the air heating chamber for dividing the air heating chamber into air channels, the air channels being arranged in a serpentine pattern within the air heating chamber, the input end of the air channels being located at the bottom of the air heating chamber and communicating with the output end of the return port and the second air inlet opening, and the output end of the air channels being located at the top of the air heating chamber and communicating with the first air inlet opening.

6. The high-efficiency grain drying device for biomass energy as described in claim 1, characterized in that, The air-drying module includes: a support plate, a connecting plate, a feeding channel, a feeding motor, a screw rod, two sets of grain storage components, a transmission motor, a mounting housing, a return channel, a return pipe, and a ventilation component; The support plate is vertically arranged in the inner cavity of the air-drying shell. The distance between the bottom of the support plate and the inner wall of the bottom of the air-drying shell is greater than zero. The two side walls of the support plate in the Y-axis direction are in close contact with the inner wall of the air-drying shell. The distance between the two side walls of the support plate in the X-axis direction and the inner wall of the air-drying shell is equal. The connecting plate is disposed on the side wall of the bearing plate and is connected to the inner wall of the drying shell. The connecting plate and the bearing plate divide the inner cavity of the drying shell into a U-shaped flow channel, and the input end of the U-shaped flow channel is connected to the inner cavity of the transmission shell. The feeding channel is located inside the bearing plate and is arranged along the axial direction of the bearing plate. The bottom end of the feeding channel is connected to the grain conveying module. The screw rod is rotatably disposed in the feeding channel, and the screw rod is disposed along the axial direction of the feeding channel; The feeding motor is fixedly mounted on the top of the support plate, and the actuator of the feeding motor passes through the outer wall of the support plate and is connected to the screw rod to drive the screw rod to rotate. The two sets of grain storage components are symmetrically arranged on the two side walls of the bearing plate, and the two sets of grain storage components are located between the connecting plate and the inner wall of the bottom of the inner cavity of the drying shell. The mounting housing is fixedly mounted on the outer wall of the air-drying housing; The return channel is disposed inside the connecting plate, the input end of the return channel is exposed on the bottom surface of the connecting plate, and the output end of the return channel is exposed on the outer surface of the connecting plate and communicates with the output end of the U-shaped flow channel. The input end of the reflux pipe passes through the outer wall of the drying shell and is fixedly connected to the output end of the reflux channel; the output end of the reflux pipe is connected to the heating module. The drive motor is fixedly mounted on the outer wall of the mounting housing. The actuator of the drive motor passes through the outer wall of the mounting housing and protrudes from the inner surface of the mounting housing. The actuator of the drive motor is connected to the two sets of grain storage components. The ventilation assembly is mounted on the transmission housing and is connected to the roller.

7. The high-efficiency grain drying device for biomass energy as described in claim 6, characterized in that, The ventilation assembly includes: a first drive shaft, a ventilation duct, a first gear, an acceleration gear, a second gear, a second drive shaft, and fan blades; The first drive shaft is fixedly mounted on the drum. The first drive shaft has the same axis as the drum. The output end of the first drive shaft passes through the inner wall of the drying shell and the outer wall of the drive shell in sequence, and protrudes from the inner surface of the drive shell. The ventilation pipe is disposed inside the drum, and the output end of the ventilation pipe passes through the inner wall of the drum, the inner wall of the drying shell, and the outer wall of the transmission shell in sequence, communicating with the inner cavity of the transmission shell. The first gear is fixedly mounted at the output end of the first transmission shaft, and the first gear is aligned with the axis of the first transmission shaft. The second drive shaft is rotatably mounted on the inner wall of the transmission housing. The input end of the second drive shaft is located in the inner cavity of the transmission housing, and the output end of the second drive shaft passes through the inner wall of the transmission housing and the outer wall of the drying housing in sequence, protruding from the inner surface of the drying housing. The second gear is located at the input end of the second transmission shaft. The second gear has the same axis as the second transmission shaft and is used to drive the second transmission shaft to rotate. The acceleration gear is rotatably mounted on the inner wall of the transmission housing. The input end of the acceleration gear meshes with the first gear, and the output end of the acceleration gear meshes with the second gear. The fan blades are located at the output end of the second drive shaft.

8. The high-efficiency grain drying device for biomass energy as described in claim 6, characterized in that, The grain storage assembly includes: several grain storage troughs, several sets of second air holes, several screws, several push plates, several screw holes, several sets of short rods, several first transmission belts, second transmission belts and grain outlets; The plurality of grain storage troughs are centrally located on any side wall of the support plate. The width of any grain storage trough is equal to the distance between the side wall of the support plate and the inner wall of the drying shell along the X-axis of the support plate. Any grain storage trough is parallel to the bottom of the drying shell. The plurality of grain storage troughs are equidistantly distributed along the Z-axis of the support plate. The length of the plurality of grain storage troughs increases sequentially from the top to the bottom of the support plate. The plurality of sets of second air holes are respectively disposed at the bottom of the plurality of grain storage troughs, and any one of the second air holes penetrates the outer wall of the grain storage trough and communicates with the inner cavity of the grain storage trough. The plurality of push plates are respectively movably disposed at the openings of the plurality of grain storage troughs; The plurality of screw holes are respectively provided on the plurality of push plates; The plurality of screws are rotatably mounted on the inner wall of the air-drying housing. The driving ends of the plurality of screws respectively penetrate the inner wall of the air-drying housing and protrude from the inner surface of the mounting housing. The actuating ends of the plurality of screws are respectively inserted into the plurality of screw holes, and the actuating ends of the screws are threadedly connected to the screw holes. The several sets of short rods are respectively set at the bottom of the several push plates, and the bottom of any one of the short rods abuts against the inner surface of the corresponding grain storage trough. The plurality of first transmission belts are disposed on the plurality of screws, and the two ends of any one of the first transmission belts are respectively connected to the driving ends of any pair of adjacent screws, for driving the plurality of screws to rotate synchronously; The two ends of the second transmission belt are respectively connected to either of the screws and the actuator of the transmission motor, for driving either of the screws to rotate; The grain outlet is located on the side wall of the support plate. The input end of the grain outlet passes through the outer wall of the support plate and communicates with the top of the feeding channel. The output end of the grain outlet is connected to the grain storage tank located on the top layer.

9. The high-efficiency grain drying device for biomass energy as described in claim 1, characterized in that, The grain conveying module includes: a discharge port, a grain conveying channel, a cylinder, and a gate. The discharge port is located on the outer wall of the drum and communicates with the inner cavity of the drum. The input end of the grain conveying channel penetrates the outer wall of the drying shell and is exposed on the inner surface of the drying shell. The output end of the grain conveying channel is connected to the air drying module. When the drum is stationary, the input end of the grain conveying channel is connected to the discharge port. The input end of the grain conveying channel is located at the bottom of the inner cavity of the drying shell. The cylinder is fixedly mounted on the outer wall of the drum, and the cylinder is located on one side of the discharge port; The gate is slidably disposed on the outer wall of the drum, and the position of the gate is matched with that of the discharge port to control the opening and closing of the discharge port.

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