Multi-layer air supply drying equipment

Abstract

The present application relates to the technical field of drying machines, and discloses a multi-layer air supply drying device, including a drying box, wherein an isolation plate is arranged inside the drying box, and the circumferential side of the isolation plate abuts against the inner wall of the drying box, and the isolation plate divides the interior of the drying box and forms a drying chamber and a distribution channel; a bracket is fixed to the inner wall of the drying chamber, and a multi-layer conveying platform is arranged inside the drying chamber, and the adjacent conveying platforms are staggered, and the conveying platforms are fixed to the bracket; a plurality of heat pumps are arranged on one side of the drying box, and a plurality of return air ducts are connected to the top of the drying box, and the end of the return air duct away from the drying box is connected to the air inlet of the heat pump, and the air outlet of the heat pump is connected to the distribution channel; a plurality of layer-by-layer air supply ducts are arranged on both sides of the drying box; and a dehumidification component is arranged at the top of the drying box. The present application now concentrates the hot air through the distribution channel to mix the hot air evenly, and then conveys the hot air to each layer of the conveying platform through the layer-by-layer air supply duct, so that each layer of the material is heated evenly, and the hot air is returned to the heat pump through the return air duct to reduce energy consumption.

Description

Technical Field

[0001] The present application relates to the technical field of drying machines, and in particular to multi-layer air supply drying equipment. Background Art

[0002] Drying equipment refers to a combination of a series of mechanical equipment that uses certain technical means to dry the moisture or other liquids on the surface of an object. The popular drying technologies are mainly ultraviolet drying, infrared drying, electromagnetic drying and hot air drying. They have their own characteristics and are widely used in drying various mechanical equipment and food.

[0003] There are many forms of automatic circulating hot air drying systems, which are divided into dynamic drying and static drying according to the circulation of the drying medium (air). The specific application needs to be determined in combination with the type of drying material.

[0004] The existing drying equipment currently has uneven air supply and low utilization rate of heat source, resulting in poor drying effect. Summary of the invention

[0005] In order to improve the problem of uneven air supply and low utilization rate of heat source in existing drying equipment, which leads to poor drying effect, the present application provides a multi-layer air supply drying equipment.

[0006] The multi-layer air supply drying equipment provided in this application adopts the following technical solution:

[0007] The multi-layer air supply drying device comprises a drying box, wherein an isolation plate is arranged in the drying box, wherein the peripheral side of the isolation plate abuts against the inner wall of the drying box, wherein the isolation plate divides the interior of the drying box and forms a drying chamber and a collecting and distributing channel; wherein a bracket is fixed to the inner wall of the drying chamber, wherein a multi-layer conveying platform is arranged in the drying chamber, wherein adjacent conveying platforms are staggered, and wherein the conveying platform is fixed to the bracket;

[0008] A plurality of heat pumps are arranged on one side of the drying box, and a plurality of return air ducts are connected to the top of the drying box, and the plurality of return air ducts correspond to the heat pumps one by one, and one end of the return air duct away from the drying box is connected to the air inlet of the heat pump, and the air outlet of the heat pump is connected to the collecting and distributing channel;

[0009] A plurality of layer-by-layer air supply pipes are arranged on both sides of the drying box, and the layer-by-layer air supply pipes on both sides of the drying box are arranged in opposite staggered positions, and the bottom ends of the layer-by-layer air supply pipes are connected to the collecting and distributing channel, and the ends of the layer-by-layer air supply pipes away from the collecting and distributing channel are provided with a plurality of layer-by-layer air supply ports corresponding to the multi-layer conveying platforms, and the layer-by-layer air supply ports are provided with air control components for adjusting the air volume, and a blower is installed in the layer-by-layer air supply pipes;

[0010] The drying top end is provided with a moisture removal component.

[0011] By adopting the above technical scheme, using multi-layer conveying platforms, the residence time of materials is increased, and the occupied space of equipment is reduced. When the materials fall from the upper conveying platform to the lower conveying platform, the materials are turned over, which is beneficial to the drying of the materials. The drying box is separated into a drying chamber and a collecting and distributing channel by an isolation plate, and hot air is transported to the collecting and distributing channel by multiple heat pumps, so that the hot air in the collecting and distributing channel is evenly mixed, and then the hot air in the collecting and distributing channel is transported to the conveying platform of each layer by a layer-by-layer air supply device, so that the hot air of each conveying platform is evenly transported, and the drying efficiency is improved. At the same time, the collecting and distributing channel plays a role in heat preservation for the drying chamber, so that the temperature in the drying chamber is stable; the air supply pipes are staggered on each layer to reduce the consumption of hedging heat energy, and the hot air is returned to the heat pump through the return air pipe for heat exchange, so as to realize waste heat recovery and improve the utilization rate of heat energy; at the same time, the size of the air outlet of the air supply pipes on each layer is adjusted by adjusting the assembly, and the air volume is adjusted to be suitable for drying different materials; the excess moisture in the drying box is discharged by the dehumidification assembly to ensure the constant humidity in the drying box and improve the drying efficiency.

[0012] Optionally, the wind control component includes a wind shield plate arranged at each layer-by-layer air supply outlet, and a driving component for driving the wind shield plate to rotate, a connecting shaft is fixed to one side of the wind shield plate, both ends of the connecting shaft pass through and are rotatably connected to the side walls of the layer-by-layer air supply duct, the driving component includes a first motor fixed to the outer wall of the layer-by-layer air supply duct, the output end of the first motor is connected to a driving pulley, one end of the connecting shaft is connected to a driven pulley, a synchronous belt is arranged between the driving pulley and the outermost driven pulley, and adjacent driven pulleys are connected by a synchronous belt.

[0013] By adopting the above technical solution, the first motor drives the active pulley to rotate, and the synchronous belt drives the driven pulley to rotate, thereby driving the wind shield to rotate, so as to adjust the air volume of the air outlet layer by layer, which is suitable for drying different materials, improves energy utilization and reduces energy consumption.

[0014] Optionally, the conveying platform includes a conveyor mesh belt and a driving member for driving the conveyor mesh belt, chains are connected to both sides of the conveyor mesh belt, the driving member includes a second motor fixed on a bracket, and transmission rollers slidably connected to both ends of the bracket, sprockets cooperating with the chain are arranged at both ends of the transmission roller, the output end of the second motor rotates with the transmission roller, and the conveyor mesh belt is wound around the transmission rollers located at both ends of the bracket; the transmission roller and the bracket are provided with adjustment components for adjusting the installation position of the transmission roller.

[0015] By adopting the above technical solution, during installation, the position of the driving roller is adjusted by adjusting the component, so that the conveyor mesh belt wrapped around the driving roller is in a tensioned state, and the driving member drives the conveyor mesh belt to rotate to realize the transportation of materials.

[0016] Optionally, the adjustment assembly includes a fixed plate rotatably connected to both ends of the transmission roller, and sliding grooves are provided at both ends of the fixed plate. The bracket is provided with a guide rail that cooperates with the sliding grooves. One end of the fixed plate is connected to an adjustment rod, and the end of the adjustment rod away from the fixed plate is threadedly connected to the bracket.

[0017] By adopting the above technical solution, the adjusting rod is rotated to make the fixing plate slide along the guide rail, and the position of the fixing plate is adjusted, thereby facilitating the adjustment of the position of the driving roller.

[0018] Optionally, the drying box is a spliced ​​structure, comprising a plurality of middle boxes spliced ​​together, and a head box and a tail box located at both ends; connecting components are provided between the head box and the tail box and the middle box, as well as between adjacent middle boxes, and the connecting components include mutually cooperating card slots and card blocks, and the card slots and card blocks are provided in the head box, the tail box or the middle box, and locking parts are provided at the connection between the head box and the tail box and the middle box, as well as at the connection between adjacent middle boxes.

[0019] By adopting the above technical solution, the drying box has a spliced ​​structure. The length of the drying box can be increased or decreased according to the material to be dried, thereby increasing the scope of application of the drying box. At the same time, it is convenient for the production and processing of the drying box. The connection between the front box body, the rear box body and the middle box body is fixed by a connecting assembly, which increases the stability of the drying box and facilitates disassembly and assembly.

[0020] Optionally, a control terminal is included, and a temperature sensor and a humidity sensor are arranged in the drying box, and both the temperature sensor and the humidity sensor are electrically connected to the control terminal. The control terminal is used to regulate the heat pump, dehumidification component, air blower and wind control component according to the detected temperature and humidity.

[0021] By adopting the above technical scheme, the temperature and humidity in the drying box are detected by temperature sensors and humidity sensors, and the heat pump, moisture exhaust component, wind control component and air blower are regulated by the control terminal; when the temperature is low, the output power of the heat pump is increased, the air control component is adjusted, the air volume of the air outlet at each layer is increased, the power of the air blower is increased, the air supply is increased, and vice versa; when the humidity is high, the moisture exhaust fan is turned on to discharge the moisture in the drying chamber, reduce the humidity in the drying chamber, facilitate drying, and improve drying efficiency.

[0022] Optionally, the dehumidification assembly includes a dehumidification fan fixed to the top of the drying box, and a dust cover is fixed at the outlet of the dehumidification fan.

[0023] By adopting the above technical solution, when the humidity in the drying box is too high, the hot and humid air in the drying box is discharged through the dehumidification fan to ensure the stability of the humidity in the drying box, which is beneficial to improving the drying efficiency; by arranging a dust cover on the dehumidification fan, dust can be reduced from entering the drying box to affect the quality of the material.

[0024] Optionally, a plurality of inspection doors are provided on a side of the drying box far from the heat pump.

[0025] By adopting the above technical solution and providing an inspection door, it is convenient to repair the equipment inside the drying box and to clean the equipment.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. First, the hot air is concentrated and mixed through the collecting and distributing channel. On the one hand, the collecting and distributing channel makes the hot air uniform in the collecting and distributing channel, and on the other hand, it can keep the drying chamber warm. The hot air in the collecting and distributing channel is evenly transported to each conveying platform through the air supply pipe layer by layer, ensuring that the hot air is evenly transported to each conveying platform, thereby improving the drying efficiency.

[0028] 2. The air supply ducts are staggered on each floor to reduce the consumption of counter-heat energy. The hot air is returned to the heat pump through the return air duct for heat exchange, thereby recovering waste heat and improving the utilization rate of thermal energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a front view of the multi-layer air supply and drying equipment of the present application.

[0030] Figure 2 It is a rear view of the multi-layer air supply and drying equipment of the present application.

[0031] Figure 3 It is a cross-sectional view of the multi-layer air supply and drying equipment of the present application.

[0032] Figure 4 It is a structural schematic diagram of the layer-by-layer air supply duct of the present application.

[0033] Figure 5 It is a cross-sectional view of the layer-by-layer air supply duct of the present application.

[0034] Figure 6 It is a cross-sectional view of the layer-by-layer air supply duct of the present application.

[0035] Figure 7 It is a structural schematic diagram of the conveying platform of this application.

[0036] Figure 8 It is a structural schematic diagram of the adjustment component of this application.

[0037] Fig. 9 It is a structural diagram of the connection components of this application.

[0038] Reference numerals: 1, drying box; 11, isolation plate; 12, drying chamber; 13, collecting and distributing channel; 14, bracket; 141, guide rail; 15, middle box; 16, front box; 17, rear box; 18, inspection door; 2, heat pump; 3, air supply pipe layer by layer; 31, air supply port layer by layer; 32, air blower; 4, conveying platform; 41, conveying mesh belt; 42, chain; 43, driving member; 431, second motor; 432, transmission roller; 433, sprocket; 4 4. Baffle; 5. Wind control assembly; 51. Wind baffle; 511. Connecting shaft; 52. Driving assembly; 521. First motor; 522. Driving pulley; 523. Driven pulley; 524. Synchronous belt; 6. Return air duct; 7. Dehumidification assembly; 71. Dehumidification fan; 72. Dust cover; 8. Adjustment assembly; 81. Fixed plate; 811. Slide; 82. Adjustment rod; 9. Connecting assembly; 91. Slot; 92. Block; 93. Locking member; 10. Control terminal. DETAILED DESCRIPTION

[0039] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings.

[0040] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0041] The present application embodiment discloses a multi-layer air supply drying device, referring to Figure 1 , Figure 2 and Figure 3 , including a drying box 1, an isolation plate 11 is arranged inside the drying box 1, and the circumferential side of the isolation plate 11 abuts against the inner wall of the drying box 1, the isolation plate 11 divides the interior of the drying box 1 and forms a drying chamber 12 and a collecting and distributing channel 13; a bracket 14 is fixed to the inner wall of the drying chamber 12, and a multi-layer conveying platform 4 is arranged in the drying chamber 12, and adjacent conveying platforms 4 are staggered, and the conveying platform 4 is fixed to the bracket 14.

[0042] Multiple heat pumps 2 are arranged on one side of the drying box 1, and multiple return air ducts 6 are connected to the top of the drying box 1. The multiple return air ducts 6 correspond to the heat pumps 2 one by one. The end of the return air duct 6 away from the drying box 1 is connected to the air inlet of the heat pump 2, and the air outlet of the heat pump 2 is connected to the collecting and distributing channel 13.

[0043] A plurality of layer-by-layer air supply ducts 3 are arranged on both sides of the drying box 1. The layer-by-layer air supply ducts 3 on both sides of the drying box 1 are staggered in opposite directions. The bottom ends of the layer-by-layer air supply ducts 3 are connected to the collecting and distributing channel 13. The ends of the layer-by-layer air ducts away from the collecting and distributing channel 13 are provided with a plurality of layer-by-layer air supply outlets 31 corresponding to the multi-layer conveying platforms 4. The layer-by-layer air supply outlets 31 are provided with air control components 5 for adjusting the air output, and air blowers 32 are installed in the layer-by-layer air supply ducts 3.

[0044] A moisture removal component 7 is provided at the top of the drying unit.

[0045] The multi-layer conveying platform 4 is used to increase the residence time of the materials and reduce the space occupied by the equipment. When the materials fall from the upper conveying platform 4 to the lower conveying platform 4, the materials are turned over, which is beneficial to the drying of the materials. The drying box 1 is separated into a drying chamber 12 and a collecting and distributing channel 13 by an isolation plate 11. The hot air is transported to the collecting and distributing channel 13 by multiple heat pumps 2, so that the hot air in the collecting and distributing channel 13 is evenly mixed. The hot air in the collecting and distributing channel 13 is then transported to the conveying platform 4 of each layer by a layer-by-layer air supply device, ensuring that the hot air is evenly transported to the conveying platform 4 of each layer. , improving the drying efficiency, and at the same time, the collecting and distributing channel 13 plays a role in heat preservation for the drying chamber 12, so that the temperature in the drying chamber 12 is stable; the air supply pipes 3 are arranged in opposite directions to reduce the consumption of counter-heating energy, and the hot air is returned to the heat pump 2 through the return air pipe 6 for heat exchange, so as to realize waste heat recovery and improve the utilization rate of thermal energy; at the same time, the size of the air outlet of the air supply pipe 3 layer by layer is adjusted by the adjusting component 8, and the air outlet is adjusted to be suitable for drying different materials; the excess moisture in the drying box 1 is discharged through the dehumidification component 7 to ensure the constant humidity in the drying box 1 and improve the drying efficiency.

[0046] It includes a control terminal 10, and a temperature sensor and a humidity sensor are arranged in the drying box 1. The temperature sensor and the humidity sensor are electrically connected to the control terminal 10. The control terminal 10 is used to adjust the heat pump 2, the dehumidification component 7, the air blower 32 and the wind control component 5 according to the detected temperature and humidity.

[0047] The temperature and humidity in the drying box 1 are detected by a temperature sensor and a humidity sensor, and the heat pump 2, the dehumidification component 7, the wind control component 5 and the air blower 32 are regulated by the control terminal 10; when the temperature is low, the output power of the heat pump 2 is increased, the wind control component 5 is adjusted, the air volume of the air outlet 31 at each layer is increased, the power of the air blower 32 is increased, and the air supply is increased, and vice versa; when the humidity is high, the dehumidification fan 71 is turned on to discharge the moisture in the drying chamber 12, reduce the humidity in the drying chamber 12, which is beneficial to drying and improves the drying efficiency.

[0048] The dehumidification assembly 7 comprises a dehumidification fan 71 fixed on the top of the drying box 1 , and a dust cover 72 is fixed at the outlet of the dehumidification fan 71 .

[0049] When the humidity in the drying box 1 is too high, the hot and humid air in the drying box 1 is discharged through the dehumidification fan 71 to ensure the stability of the humidity in the drying box 1, which is beneficial to improving the drying efficiency; by arranging a dust cover 72 on the dehumidification fan 71, dust is reduced from entering the drying box 1 to affect the quality of the material.

[0050] A plurality of inspection doors 18 are provided on one side of the drying box 1 away from the heat pump 2 .

[0051] The inspection door 18 is provided to facilitate maintenance of the equipment inside the drying box 1 and cleaning of the equipment.

[0052] Reference Figure 4 , Figure 5 and Figure 6 The wind control component 5 includes a wind shield plate 51 arranged at each layer-by-layer air supply outlet 31, and a driving component 52 for driving the wind shield plate 51 to rotate, a connecting shaft 511 is fixed to one side of the wind shield plate 51, both ends of the connecting shaft 511 pass through and are rotatably connected to the side walls of the layer-by-layer air supply pipe 3, the driving component 52 includes a first motor 521 fixed to the outer wall of the layer-by-layer air supply pipe 3, the output end of the first motor 521 is connected to a driving pulley 522, one end of the connecting shaft 511 is connected to a driven pulley 523, a synchronous belt 524 is arranged between the driving pulley 522 and the outermost driven pulley 523, and adjacent driven pulleys 523 are connected by the synchronous belt 524.

[0053] The driving pulley 522 is driven to rotate by the first motor 521, and the driven pulley 523 is driven to rotate by the synchronous belt 524, thereby driving the wind shield plate 51 to rotate, so as to adjust the air volume of the air supply port 31 layer by layer, which is suitable for drying different materials, improves energy utilization and reduces energy consumption.

[0054] Reference Figure 3 , Figure 7 and Figure 8 The conveying platform 4 includes a conveying mesh belt 41 and a driving member 43 for driving the conveying mesh belt 41 . Chains 42 are connected to both sides of the conveying mesh belt 41 . Baffles 44 are fixed to both sides of the conveying mesh belt 41 and inside the chains 42 .

[0055] The driving member 43 includes a second motor 431 fixed on the bracket 14, and a transmission roller 432 slidably connected to the two ends of the bracket 14, and sprockets 433 cooperating with the chain 42 are arranged at both ends of the transmission roller 432. The output end of the second motor 431 rotates with the transmission roller 432, and the conveyor belt 41 is wound around the transmission roller 432 located at the two ends of the bracket 14; the transmission roller 432 and the bracket 14 are provided with an adjustment component 8 for adjusting the installation position of the transmission roller 432.

[0056] During installation, the position of the transmission roller 432 is adjusted by adjusting the component 8 so that the conveyor mesh belt 41 wound around the transmission roller 432 is in a tensioned state, and the driving member 43 drives the conveyor mesh belt 41 to rotate, thereby realizing the transportation of materials.

[0057] The adjustment assembly 8 includes a fixed plate 81 rotatably connected to the two ends of the transmission roller 432, and a slide groove 811 is provided at both ends of the fixed plate 81. A guide rail 141 that cooperates with the slide groove 811 is provided on the bracket 14. One end of the fixed plate 81 is connected to an adjustment rod 82, and the end of the adjustment rod 82 away from the fixed plate 81 is threadedly connected to the bracket 14.

[0058] By rotating the adjusting rod 82 , the fixing plate 81 is slid along the guide rail 141 , and the position of the fixing plate 81 is adjusted, thereby facilitating the adjustment of the position of the driving roller 432 .

[0059] Reference Figure 1 and Fig. 9 The drying box 1 is a spliced ​​structure, and the drying box 1 includes a plurality of mutually spliced ​​middle boxes 15, and a head box 16 and a tail box located at both ends; a connecting component 9 is provided between the head box 16 and the tail box 17 and the middle box 15, and between adjacent middle boxes 15, and the connecting component 9 includes a card slot 91 and a card block 92 that cooperate with each other, and the card slot 91 and the card block 92 are arranged in the head box 16, the tail box 17 or the middle box 15, and a locking member 93 is provided at the connection between the head box 16 and the tail box 17 and the middle box 15, and at the connection between adjacent middle boxes 15.

[0060] According to the material to be dried, the length of the drying box 1 can be increased or decreased to increase the applicable scope of the drying box 1; at the same time, it is convenient for the production and processing of the drying box 1; the connection between the head box 16, the tail box 17 and the middle box 15 is fixed by the connecting component 9, which increases the stability of the drying box 1 and is convenient for disassembly and assembly.

[0061] The implementation principle of the multi-layer air supply drying equipment of the embodiment of the present application is: first, drying boxes 1 of different lengths are assembled according to the products, and several middle boxes 15 are spliced ​​together through the connecting components 9, and are spliced ​​with the head box 16 and the tail box 17. A heat pump 2 is installed on one side of each middle box 15, and the air inlet end of the heat pump 2 is connected with the return port on the top of the middle box 15 through the return air duct 6, and the air outlet end of the heat pump 2 is connected with the distribution channel 13. The air supply ducts 3 are installed layer by layer in opposite directions on both sides of the drying box 1 to reduce the heat energy consumed by hot air hedging.

[0062] When in use, the heat pump 2 is used to transport the hot air to the collecting and distributing channel 13, and the hot air is concentrated and mixed. The air supply pipes 3 are installed on both sides of the drying box 1 in an opposite and staggered manner. Under the action of the air supply fan 32, the hot air in the collecting and distributing channel 13 is transported to each layer of the conveying platform 4 to dry the material. The multi-layer conveying platform 4 can increase the residence time of the material, thereby increasing the drying time; the upper conveying platform 4 transports the material to the lower conveying platform 4, and the material can be turned over, which is beneficial to improve the drying efficiency; the hot air is transported back to the heat pump 2 through the return air pipe 6 for reheating, thereby reducing energy consumption.

[0063] A portion of the hot and humid air in the drying chamber 12 is discharged through the moisture discharge channel, thereby ensuring the humidity in the drying chamber 12, which is beneficial to improving the drying efficiency.

[0064] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. Multi-layer air supply drying equipment, characterized in that: The drying box (1) comprises a drying box (1), wherein an isolation plate (11) is arranged inside the drying box (1), the circumferential side of the isolation plate (11) abuts against the inner wall of the drying box (1), and the isolation plate (11) divides the interior of the drying box (1) to form a drying chamber (12) and a collecting and distributing channel (13); a bracket (14) is fixed to the inner wall of the drying chamber (12), and a multi-layer conveying platform (4) is arranged inside the drying chamber (12), and adjacent conveying platforms (4) are staggered, and the conveying platform (4) is fixed to the bracket (14); A plurality of heat pumps (2) are arranged on one side of the drying box (1); a plurality of return air ducts (6) are connected to the top of the drying box (1); the plurality of return air ducts (6) correspond to the heat pumps (2) one by one; an end of the return air duct (6) away from the drying box (1) is connected to an air inlet of the heat pump (2); and an air outlet of the heat pump (2) is connected to a collecting and distributing channel (13); A plurality of layer-by-layer air supply pipes (3) are arranged on both sides of the drying box (1), and the layer-by-layer air supply pipes (3) on both sides of the drying box (1) are arranged in a staggered manner. The bottom ends of the layer-by-layer air supply pipes (3) are connected to the collecting and distributing channel (13), and a plurality of layer-by-layer air supply ports (31) corresponding to the multi-layer conveying platforms (4) are opened at one end of the layer-by-layer air supply pipe away from the collecting and distributing channel (13). The layer-by-layer air supply ports (31) are provided with air control components (5) for adjusting the air output, and a blower (32) is installed in the layer-by-layer air supply pipe (3); The drying top end is provided with a moisture removal component (7); The wind control component (5) comprises a wind shield (51) arranged at each layer-by-layer air supply outlet (31), and a driving component (52) for driving the wind shield (51) to rotate, a connecting shaft (511) is fixed on one side of the wind shield (51), both ends of the connecting shaft (511) penetrate through and are rotatably connected to the side wall of the layer-by-layer air supply pipe (3), the driving component (52) comprises a first motor (521) fixed to the outer wall of the layer-by-layer air supply pipe (3), the output end of the first motor (521) is connected to a driving pulley (522), one end of the connecting shaft (511) is connected to a driven pulley (523), a synchronous belt (524) is arranged between the driving pulley (522) and the outermost driven pulley (523), and adjacent driven pulleys (523) are connected via the synchronous belt (524).

2. The multi-layer air supply drying equipment according to claim 1, characterized in that: The conveying platform (4) comprises a conveying mesh belt (41) and a driving member (43) for driving the conveying mesh belt (41), the two sides of the conveying mesh belt (41) are connected with a chain (42), the driving member (43) comprises a second motor (431) fixed on a bracket (14), and a transmission roller (432) slidably connected to the two ends of the bracket (14), the two ends of the transmission roller (432) are provided with a sprocket (433) matched with the chain (42), the output end of the second motor (431) rotates with the transmission roller (432), and the conveying mesh belt (41) is wound around the transmission roller (432) located at the two ends of the bracket (14); the transmission roller (432) and the bracket (14) are provided with an adjustment component (8) for adjusting the installation position of the transmission roller (432).

3. The multi-layer air supply drying equipment according to claim 2, characterized in that: The adjustment assembly (8) comprises a fixed plate (81) rotatably connected to both ends of the driving roller (432), a slide groove (811) is provided at both ends of the fixed plate (81), a guide rail (141) cooperating with the slide groove (811) is provided on the bracket (14), one end of the fixed plate (81) is connected to an adjustment rod (82), and one end of the adjustment rod (82) away from the fixed plate (81) is threadedly connected to the bracket (14).

4. The multi-layer air supply drying equipment according to claim 1, characterized in that: The drying box (1) is a spliced ​​structure, comprising a plurality of mutually spliced ​​middle boxes (15), and a head box (16) and a tail box (17) located at both ends; a connecting assembly (9) is arranged between the head box (16) and the tail box (17) and the middle box (15), and between adjacent middle boxes (15); the connecting assembly (9) comprises a card slot (91) and a card block (92) that cooperate with each other; the card slot (91) and the card block (92) are arranged on the head box (16), the tail box (17) or the middle box (15); a locking member (93) is arranged at the connection between the head box (16) and the tail box (17) and the middle box (15), and at the connection between the adjacent middle boxes (15).

5. The multi-layer air supply drying equipment according to claim 1, characterized in that: The drying box (1) further comprises a control terminal (10). A temperature sensor and a humidity sensor are arranged in the drying box (1). Both the temperature sensor and the humidity sensor are electrically connected to the control terminal (10). The control terminal (10) is used to control the heat pump (2), the dehumidification component (7), the air blower (32) and the air control component (5) according to the detected temperature and humidity.

6. The multi-layer air supply drying equipment according to claim 1, characterized in that: The dehumidification component (7) comprises a dehumidification fan (71) fixed on the top of the drying box (1), and a dust cover (72) is fixed at the outlet of the dehumidification fan (71).

7. The multi-layer air supply drying equipment according to claim 1, characterized in that: The drying box (1) is provided with a plurality of inspection doors (18) on one side away from the heat pump (2).

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