Air energy multilayer mesh belt dryer

Abstract

The utility model relates to the technical field of drying machine, in particular to air energy multilayer mesh belt drying machine, its utilize the upper surface and lower surface of mesh belt one convey material, the drying path of material is doubled to prolong, improves material drying efficiency, including drying box, air energy system and air supply system, still include a plurality of mesh belt components, a plurality of mesh belt components are arranged in the drying chamber of drying box up and down, mesh belt components include conveying roller one, conveying roller two, mesh belt one, a plurality of intermediate strip one and a plurality of elastic intermediate strip one, mesh belt one is assembled on conveying roller one and conveying roller two, mesh belt one sets up the mesh of rectangle, the lower end surface of a plurality of intermediate strip one and the upper surface of the upper layer of mesh belt one slide contact, a plurality of intermediate strip one are located in the right part of mesh belt one and are located in a plurality of mesh central parts respectively, the lower end surface of a plurality of elastic intermediate strip one and the upper surface of the lower layer of mesh belt one slide contact, a plurality of elastic intermediate strip one are located in the left part of mesh belt one and are located in a plurality of mesh central parts respectively.

Description

Technical Field

[0001] This utility model relates to the technical field of dryers, and in particular to an air-source multi-layer mesh belt dryer. Background Technology

[0002] Multi-layer mesh belt dryers are commonly used material drying devices, with multiple heat sources, including electric heating and air source heat pumps. Existing Chinese utility model patent CN212431667U discloses an air source dryer and drying system, which includes a dehumidifying heat pump unit and a hot air circulation system. Existing Chinese utility model patent CN219069331U discloses a mesh belt continuous air source heat pump fruit and vegetable dryer, which discloses the arrangement and installation method of the air source heat pump.

[0003] However, the existing multi-layer mesh belt dryers only use the upper surface of the mesh belt to transport materials, resulting in a short drying path for the materials and low drying efficiency. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an air-source multi-layer mesh belt dryer that utilizes the upper and lower surfaces of the mesh belt to transport materials, thereby extending the drying path of the materials and improving the drying efficiency.

[0005] This utility model discloses an air-source multi-layer mesh belt dryer, comprising a drying box, an air-source system, and an air supply system. The drying box contains a drying chamber, and an inlet communicating with the drying chamber is located on the drying box. The air supply system is installed on the drying box, with its outlet and inlet located at the bottom and top of the drying chamber, respectively. The air-source system is used to dehumidify and heat the air supplied by the air supply system. The dryer also includes multiple mesh belt assemblies arranged vertically within the drying chamber. Each mesh belt assembly includes a first conveyor roller, a second conveyor roller, a first mesh belt, multiple first intermediate strips, and multiple first elastic intermediate strips. The first and second conveyor rollers are rotatably mounted on the drying chamber. In the left and right parts of the drying chamber, conveyor roller 2 is located below the feed inlet of the drying box. Mesh belt 1 is fitted onto conveyor rollers 1 and 2. Mesh belt 1 has rectangular mesh openings, with the long sides of the mesh openings arranged parallel to conveyor roller 1. Multiple intermediate strips 1 and multiple elastic intermediate strips 1 are installed in the drying chamber of the drying box. The lower end faces of the multiple intermediate strips 1 are in sliding contact with the upper surface of the upper layer of mesh belt 1. The multiple intermediate strips 1 are located on the right side of mesh belt 1 and are respectively located in the center of multiple mesh openings. The lower end faces of the multiple elastic intermediate strips 1 are in sliding contact with the upper surface of the lower layer of mesh belt 1. The multiple elastic intermediate strips 1 are located on the left side of mesh belt 1 and are respectively located in the center of multiple mesh openings. The multiple intermediate strips 1 are connected to the uppermost mesh belt. The upper layer of the mesh belt 1, when engaged with the lower layer of the top mesh belt 1, forms a dense mesh 1 on the right side. Multiple elastic intermediate strips 1 engage with the lower layer of the top mesh belt 1, forming a dense mesh 2 on the left side of the lower layer of the mesh belt 1. During operation, the air-powered system absorbs heat from the outside air to heat the air supplied by the air supply system and removes water vapor. Multiple conveyor rollers 1 and 2 synchronously drive multiple mesh belts 1 to rotate, causing the upper layers of multiple mesh belts 1 to move to the left and the lower layers to move to the right. Material is added to the drying chamber of the drying box through the feed inlet and falls onto the right side of the top mesh belt 1, forming a dense mesh 2 on the upper layer of the mesh belt 1. The material is caught, and when the material on the upper layer of the mesh belt moves out of the multiple intermediate strips, the material falls into the interior of the mesh belt through the rectangular mesh holes and is caught by the left side of the lower layer of the mesh belt. This allows the dense mesh holes of the lower layer of the mesh belt to catch the material. When the material on the lower layer of the mesh belt moves out of the multiple elastic intermediate strips, the material falls into the upper layer of the second mesh belt through the rectangular mesh holes. The above operation is repeated so that the material moves sequentially between the upper and lower layers of multiple mesh belts. During the movement, the material comes into contact with hot air and is dried. Compared with the existing technology, using the upper and lower surfaces of the mesh belt to transport the material significantly extends the drying path of the material and improves the drying efficiency.

[0006] Preferably, the device further includes multiple inclined annular grooves and multiple vertical rods. The outer surface of each of the multiple conveying rollers is provided with multiple inclined annular grooves. One end of each of the multiple vertical rods is connected to multiple elastic intermediate strips, and the other end of each of the multiple vertical rods is slidably installed in the multiple inclined annular grooves. When the conveying rollers rotate, the multiple vertical rods are moved back and forth by the multiple inclined annular grooves, causing the multiple vertical rods to drive the multiple elastic intermediate strips to swing back and forth on the multiple rectangular mesh holes of the mesh belt. This causes the multiple elastic intermediate strips to agitate the conveyed material, making the material come into more full contact with the hot air and improving the drying efficiency.

[0007] Preferably, it also includes multiple balls, with balls installed at the ends of multiple vertical rods, and the multiple balls are slidably installed in multiple oblique annular grooves; the multiple vertical rods are slidably connected to the multiple oblique annular grooves through the multiple balls, reducing wear and improving reliability.

[0008] Preferably, it also includes a grading mesh belt assembly, which is installed below multiple mesh belt assemblies and is used to grade materials. The grading mesh belt assembly includes conveyor roller three, conveyor roller four, mesh belt two, multiple intermediate strips two, multiple intermediate strips three, discharge chute one, and discharge chute two. Conveyor roller three and conveyor roller four are rotatably installed on the left and right sides of the drying chamber of the drying box. Mesh belt two is fitted onto conveyor roller three and conveyor roller four, and rectangular mesh holes two are provided on mesh belt two, with the long sides of the multiple mesh holes two being parallel to conveyor roller three. Multiple intermediate strips (two and three) are installed in the drying chamber of the drying oven. The lower end face of the multiple intermediate strips (two) slides in contact with the upper surface of the upper layer of the mesh belt (two). The multiple intermediate strips (two) are located on the right side of the mesh belt (two) and are respectively located in the middle of the multiple mesh openings (two). The lower end face of the multiple intermediate strips (three) slides in contact with the upper surface of the lower layer of the mesh belt (two). The multiple intermediate strips (three) are located on the left side of the mesh belt (two) and are respectively located in the middle of the multiple mesh openings (two). Discharge chute one and discharge chute two are installed on the left and right sides of the drying oven, respectively. The input end of discharge chute one... The left end of the second mesh belt is connected to the left end of the second discharge chute, and the input end of the second discharge chute is connected to the lower right side of the second mesh belt. Multiple intermediate strips 2 cooperate with the upper layer of the second mesh belt, forming a dense mesh 3 on the right side of the upper layer. Multiple intermediate strips 3 cooperate with the lower layer of the second mesh belt, forming a dense mesh 4 on the left side of the lower layer. The rotation of conveyor rollers 3 and 4 causes the upper layer of the second mesh belt to move to the left and the lower layer to move to the right. Multiple mesh belt assemblies feed the dried material onto the upper right side of the second mesh belt, and the upper layer of the second mesh belt then feeds the material towards... Left conveying: After the material leaves the multiple intermediate bars 2, particles smaller than mesh 2 fall into the middle of mesh belt 2 through multiple mesh 2, while particles larger than mesh 2 are fed into discharge chute 1 through the left end of mesh belt 2 and discharged from the drying chamber through discharge chute 1. Dense mesh 4 catches the material falling into mesh belt 2. The lower layer of mesh belt 2 conveys the material to the right. After the material leaves the multiple intermediate bars 3, it falls into discharge chute 2 through multiple mesh 2 and is discharged from the outside of the drying chamber through discharge chute 2, thus achieving material grading and screening.

[0009] Preferably, the air source heat pump system includes heat exchanger one, heat exchanger two, and a heat pump body. Heat exchanger one is connected to heat exchanger two through the heat pump body. Heat exchanger one is used to absorb heat from the air, and the heat from the air is transferred to heat exchanger two through the heat pump body. Heat exchanger two releases the heat into the air supply system. The heat pump body is equipped with a matching compressor, pipelines, and a matching controller. The operation of the corresponding equipment inside the heat pump body enables heat exchanger one to absorb heat from the air and transfer the heat to heat exchanger two through the corresponding pipelines and the medium in the pipelines, thereby realizing air source heat pump heating. This technology is mature and energy-saving.

[0010] Preferably, the air supply system includes an air inlet hood, a first heat exchange chamber, a second heat exchange chamber, and an air outlet. The air inlet hood is installed on the top of the drying chamber, and its air inlet is located at the top of the drying chamber. The first and second heat exchange chambers are installed outside the drying chamber, and the air outlet is installed at the bottom of the drying chamber. The air inlet hood and the first heat exchange chamber are connected by a first pipe, the first and second heat exchange chambers are connected by a second pipe, and the second heat exchange chamber and the air outlet are connected by a third pipe. One heat absorption end of the first heat exchange chamber is located inside the first heat exchanger, and the heat dissipation end of the second heat exchange chamber is located inside the heat pump body. The humid and hot air at the top of the drying chamber of the drying oven is introduced into heat exchange chamber one through the air inlet hood and pipe one. One heat-absorbing end of heat exchanger one absorbs heat from the air inside heat exchange chamber one, thereby condensing the moisture in the humid and hot air and expelling it, thus drying the air. The dried air is introduced into heat exchange chamber two through pipe two. The heat pump body dissipates heat into heat exchange chamber two, thereby heating the dry air inside heat exchange chamber two. The dry and hot air is introduced into the bottom of the drying chamber of the drying oven through pipe three and air outlet, so that the dry and hot air circulates and dries the material, which is very practical.

[0011] Preferably, it also includes a fan, which is installed in the air inlet hood; the operation of the fan transports the hot and humid air from the top of the drying chamber of the drying box to the air inlet hood, thereby improving the efficiency of hot and humid air exhaust.

[0012] Preferably, it also includes a heater, which is installed in the air outlet; the heater provides auxiliary heating to the air output from the air outlet, making the hot air temperature more stable.

[0013] Compared with the prior art, the beneficial effects of this utility model are: by using the upper and lower surfaces of the mesh belt to transport materials, the drying path of the materials is extended many times over, thereby improving the drying efficiency of the materials. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a side sectional view of the present invention;

[0016] Figure 3 This is a front sectional view of the present invention;

[0017] Figure 4 This is a schematic diagram of the isometric structure of this utility model;

[0018] Figure 5 This is a structural diagram of components such as mesh belts;

[0019] Figure 6 This is a structural diagram of the conveyor roller, the elastic intermediate strip, the inclined annular groove, the vertical rod, and the ball bearings.

[0020] Figure 7 It is a structural diagram of an air source heat pump system and a ventilation system.

[0021] The attached diagram is labeled as follows: 1. Drying oven; 2. Air source heat pump system; 3. Air supply system; 4. Conveyor roller 1; 5. Conveyor roller 2; 6. Mesh belt 1; 7. Intermediate strip 1; 8. Elastic intermediate strip 1; 9. Inclined annular chute; 10. Vertical rod; 11. Ball bearing; 12. Conveyor roller 3; 13. Conveyor roller 4; 14. Mesh belt 2; 15. Intermediate strip 2; 16. Intermediate strip 3; 17. Discharge chute 1; 18. Discharge chute 2; 19. Heat exchanger 1; 20. Heat exchanger 2; 21. Heat pump body; 22. Air inlet hood; 23. Heat exchange chamber 1; 24. Heat exchange chamber 2; 25. Air outlet; 26. Fan; 27. Heater. Detailed Implementation

[0022] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, an air-source multi-layer mesh belt dryer includes a drying chamber 1, an air-source system 2, and an air supply system 3. The drying chamber 1 has a drying chamber inside, and a feed inlet communicating with the drying chamber is provided on the drying chamber 1. The air supply system 3 is installed on the drying chamber 1, with its outlet and inlet located at the bottom and top of the drying chamber 1, respectively. The air-source system 2 is used to dehumidify and heat the air supplied by the air supply system 3. The dryer also includes multiple mesh belt assemblies arranged vertically within the drying chamber 1. Each mesh belt assembly includes a first conveyor roller 4, a second conveyor roller 5, a mesh belt 6, multiple intermediate strips 7, and multiple elastic intermediate strips 8. The first conveyor roller 4 and the second conveyor roller 5 are rotatably mounted. In the left and right parts of the drying chamber of the drying box 1, the second conveyor roller 5 is located below the feed inlet of the drying box 1. The mesh belt 6 is fitted on the first conveyor roller 4 and the second conveyor roller 5. The mesh belt 6 is provided with rectangular mesh holes, and the long side of the mesh holes is arranged parallel to the first conveyor roller 4. Multiple intermediate strips 7 and multiple elastic intermediate strips 8 are installed in the drying chamber of the drying box 1. The lower end face of the multiple intermediate strips 7 is in sliding contact with the upper surface of the upper layer of the mesh belt 6. The multiple intermediate strips 7 are located on the right side of the mesh belt 6 and are respectively located in the middle of multiple mesh holes. The lower end face of the multiple elastic intermediate strips 8 is in sliding contact with the upper surface of the lower layer of the mesh belt 6. The multiple elastic intermediate strips 8 are located on the left side of the mesh belt 6 and are respectively located in the middle of multiple mesh holes.

[0024] Multiple intermediate strips 7 cooperate with the upper layer of the topmost mesh belt 6, forming a dense mesh on the right side of the upper layer of mesh belt 6. Multiple elastic intermediate strips 8 cooperate with the lower layer of the topmost mesh belt 6, forming a dense mesh on the left side of the lower layer of mesh belt 6. During operation, the air energy system 2 absorbs heat from the outside air to heat the air supplied by the air supply system 3 and removes water vapor from the air supply system 3. Multiple conveyor rollers 4 and 5 synchronously drive multiple mesh belts 6 to rotate, causing the upper layer of multiple mesh belts 6 to move to the left and the lower layer of multiple mesh belts 6 to move to the right. The material is added into the drying chamber of the drying box 1 through the feed inlet and falls onto the right side of the topmost mesh belt 6, causing the mesh belt to... The dense mesh on the upper layer of mesh belt 6 catches the material. When the material on the upper layer of mesh belt 6 moves out of multiple intermediate strips 7, the material falls into the interior of mesh belt 6 through the rectangular mesh and is caught by the left side of the lower layer of mesh belt 6, so that the dense mesh on the lower layer of mesh belt 6 catches the material. When the material on the lower layer of mesh belt 6 moves out of multiple elastic intermediate strips 8, the material falls into the upper layer of the second mesh belt 6 through the rectangular mesh. The above operation is repeated so that the material moves sequentially between the upper and lower layers of multiple mesh belts 6. During the movement, the material comes into contact with hot air and is dried. Compared with the existing technology, using the upper and lower surfaces of mesh belt 6 to transport materials extends the drying path of the material many times over and improves the drying efficiency of the material.

[0025] It also includes multiple inclined annular grooves 9 and multiple vertical rods 10. Multiple inclined annular grooves 9 are provided on the outer surface of multiple conveying rollers 4. One end of multiple vertical rods 10 is connected to multiple elastic intermediate strips 8 respectively, and the other end of multiple vertical rods 10 is slidably installed in multiple inclined annular grooves 9 respectively. It also includes multiple balls 11. Balls 11 are installed at the ends of multiple vertical rods 10, and multiple balls 11 are slidably installed in multiple inclined annular grooves 9 respectively.

[0026] When the conveyor roller 4 rotates, multiple vertical rods 10 are moved back and forth by multiple inclined annular grooves 9, causing multiple vertical rods 10 to drive multiple elastic intermediate strips 8 to swing back and forth on multiple rectangular mesh holes of the mesh belt 6. This causes the multiple elastic intermediate strips 8 to agitate the conveyed material, making the material more fully contacted with the hot air and improving the drying efficiency. The multiple vertical rods 10 are slidably connected to the multiple inclined annular grooves 9 through multiple balls 11, reducing wear and improving reliability.

[0027] It also includes a grading mesh belt assembly, which is installed below multiple mesh belt assemblies and is used to grade materials. The grading mesh belt assembly includes conveyor roller three 12, conveyor roller four 13, mesh belt two 14, multiple intermediate strips two 15, multiple intermediate strips three 16, discharge chute one 17, and discharge chute two 18. Conveyor roller three 12 and conveyor roller four 13 are rotatably installed on the left and right sides of the drying chamber of drying box 1. Mesh belt two 14 is fitted on conveyor roller three 12 and conveyor roller four 13. Mesh belt two 14 is provided with rectangular mesh holes two, the long sides of multiple mesh holes two are parallel to conveyor roller three 12, and multiple intermediate strips two 15 and multiple intermediate strips three 16 are... Installed in the drying chamber of drying box 1, the lower end faces of multiple intermediate strips 15 slide in contact with the upper surface of the upper layer of mesh belt 14. The multiple intermediate strips 15 are located on the right side of mesh belt 14 and are respectively located in the middle of multiple mesh holes 2. The lower end faces of multiple intermediate strips 16 slide in contact with the upper surface of the lower layer of mesh belt 14. The multiple intermediate strips 16 are located on the left side of mesh belt 14 and are respectively located in the middle of multiple mesh holes 2. Discharge trough 17 and discharge trough 28 are respectively installed on the left and right sides of drying box 1. The input end of discharge trough 17 is connected to the left end of mesh belt 14, and the input end of discharge trough 28 is connected to the lower right side of mesh belt 14.

[0028] Multiple intermediate strips 15 cooperate with the upper layer of mesh belt 14, forming a dense mesh 3 on the right side of the upper layer of mesh belt 14. Multiple intermediate strips 16 cooperate with the lower layer of mesh belt 14, forming a dense mesh 4 on the left side of the lower layer of mesh belt 14. The rotation of conveyor rollers 12 and 13 causes the upper layer of mesh belt 14 to move to the left and the lower layer of mesh belt 14 to move to the right. Multiple mesh belt assemblies feed the dried material onto the upper right side of mesh belt 14, and the upper layer of mesh belt 14 conveys the material to the left. When the material leaves the multiple intermediate strips... After mesh 15, materials smaller than mesh 2 fall into the middle of mesh belt 2 14 through multiple mesh 2 openings. Materials larger than mesh 2 are fed into discharge chute 17 through the left end of mesh belt 2 14 and discharged from drying chamber 1 through discharge chute 17. Dense mesh 4 catches the materials falling into mesh belt 2 14. The lower layer of mesh belt 2 14 conveys the materials to the right. When the materials detach from multiple intermediate bars 3 16, they fall into discharge chute 2 18 through multiple mesh 2 openings and are discharged from the outside of drying chamber 1 through discharge chute 2 18, thus achieving material grading and screening. Example 2

[0029] like Figures 1 to 7 As shown, based on Embodiment 1, the air source system 2 includes a heat exchanger 19, a heat exchanger 20, and a heat pump body 21. The heat exchanger 19 is connected to the heat exchanger 20 via the heat pump body 21. The heat exchanger 19 absorbs heat from the air, and the heat from the air is transferred to the heat exchanger 20 via the heat pump body 21. The heat exchanger 20 releases the heat into the air supply system 3. The air supply system 3 includes an air inlet hood 22, a heat exchange chamber 23, a heat exchange chamber 24, and an air outlet 25. The air inlet hood 22 is installed on the top of the drying chamber 1, and the air inlet of the air inlet hood 22 is located at the top of the drying chamber of the drying chamber 1. Heat exchange chamber 1 23 and heat exchange chamber 24 are installed outside the drying oven 1. Air outlet 25 is installed at the bottom of the drying chamber of the drying oven 1. Air inlet hood 22 and heat exchange chamber 1 23 are connected by pipe 1. Heat exchange chamber 1 23 and heat exchange chamber 24 are connected by pipe 2. Heat exchange chamber 24 and air outlet 25 are connected by pipe 3. One heat absorption end of heat exchange chamber 1 23 is located inside heat exchanger 19. The heat dissipation end of heat exchange chamber 24 is located in heat pump body 21. It also includes a fan 26, which is installed in air inlet hood 22. It also includes a heater 27, which is installed in air outlet 25.

[0030] The compressor, piping, and controller inside the heat pump body 21 are all existing technologies and will not be described in detail here. The operation of the corresponding equipment inside the heat pump body 21 causes heat exchanger 19 to absorb heat from the air and transfer the heat through the corresponding piping and the medium within the piping to heat exchanger 20 for release, thus achieving air source heat pump heating. The fan 26 operates to transport the hot, humid air from the top of the drying chamber of the drying box 1 to the air inlet hood 22. The hot, humid air from the top of the drying chamber of the drying box 1 is then input into heat exchange chamber 23 through the air inlet hood 22 and piping 1. In the process, one heat-absorbing end of heat exchanger 19 absorbs heat from the air inside heat exchange chamber 23, causing the moisture in the humid air to condense and be discharged, thus drying the air. The dried air is then input into heat exchange chamber 24 through pipe 2, and heat pump body 21 dissipates heat into heat exchange chamber 24, thus heating the dry air inside heat exchange chamber 24. The dry and hot air is then input into the bottom of the drying chamber of drying box 1 through pipe 3 and air outlet 25, allowing the dry and hot air to circulate and dry the material. This process is highly practical. Heater 27 provides auxiliary heating to the air output from air outlet 25, making the hot air temperature more stable.

[0031] like Figures 1 to 7As shown, this utility model discloses an air-source multi-layer mesh belt dryer. During operation, the humid, hot air from the top of the drying chamber 1 is first introduced into the heat exchange chamber 23 through the air inlet hood 22 and pipe 1. One heat-absorbing end of the heat exchanger 19 absorbs heat from the air inside the heat exchange chamber 23, causing the moisture in the humid, hot air to condense and be discharged, thus drying the air. The dried air is then introduced into the heat exchange chamber 24 through pipe 2. The heat pump body 21 dissipates heat into the heat exchange chamber 24, heating the dry air inside. The dried, hot air then passes through... Pipeline 3 and air outlet 25 input into the bottom of the drying chamber of drying box 1, allowing hot dry air to circulate and dry the material. Then, multiple conveyor rollers 4 and 5 synchronously drive multiple mesh belts 6 to rotate, causing the upper layer of mesh belts 6 to move to the left and the lower layer to move to the right. The material is added into the drying chamber of drying box 1 through the feed inlet and falls onto the right side of the uppermost mesh belt 6, where the dense mesh of the upper layer of mesh belt 6 catches the material. When the material on the upper layer of mesh belt 6 moves out of the multiple intermediate strips 7, the material passes through... The rectangular mesh of mesh belt 6 allows material to fall into its interior and onto the lower left side of the lower layer of mesh belt 6. This allows the dense mesh of the lower layer of mesh belt 6 to catch the material. When the material in the lower layer of mesh belt 6 moves out of the multiple elastic intermediate strips 8, it falls through the rectangular mesh of mesh belt 6 onto the upper layer of the second mesh belt 6. This process is repeated, causing the material to move sequentially between the upper and lower layers of multiple mesh belts 6. During this movement, the material comes into contact with hot air and is dried. The dried material is then placed onto the upper right side of mesh belt 14, where the upper layer of mesh belt 14 receives the material. The material is conveyed to the left. After the material leaves the multiple intermediate bars 15, the particles smaller than the mesh size fall into the middle of the mesh belt 14 through the mesh size. The particles larger than the mesh size are fed into the discharge chute 17 through the left end of the mesh belt 14 and discharged from the drying chamber 1 through the discharge chute 17. The dense mesh size catches the material falling into the mesh belt 14. Finally, the lower layer of the mesh belt 14 conveys the material to the right. After the material leaves the multiple intermediate bars 16, it falls into the discharge chute 18 through the mesh size and is discharged from the outside of the drying chamber 1 through the discharge chute 18.

[0032] The main functions achieved by this utility model are:

[0033] 1. By using the upper and lower surfaces of the mesh belt 6 to convey materials, the drying path of the materials is extended several times, thereby improving the drying efficiency of the materials.

[0034] 2. The conveyed material is agitated to ensure more thorough contact between the material and the hot air, thereby improving drying efficiency;

[0035] 3. It can classify and screen dried materials.

[0036] This utility model discloses an air-source multi-layer mesh belt dryer. Its installation, connection, and setup methods are all common mechanical methods, and any method that achieves the desired beneficial effects can be implemented. The drying box 1, air-source system 2, air supply system 3, conveyor roller 1 4, conveyor roller 2 5, mesh belt 1 6, intermediate strip 1 7, elastic intermediate strip 1 8, oblique annular groove 9, ball bearings 11, conveyor roller 3 12, conveyor roller 4 13, mesh belt 2 14, intermediate strip 2 15, intermediate strip 3 16, heat exchanger 1 19, heat exchanger 2 20, heat pump body 21, air inlet hood 22, heat exchange chamber 1 23, heat exchange chamber 2 24, air outlet 25, fan 26, and heater 27 of this utility model are commercially available. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative effort from those skilled in the art.

[0037] All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0038] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An air-source multi-layer mesh belt dryer, comprising a drying chamber (1), an air-source system (2), and an air supply system (3), wherein the drying chamber (1) is provided with a drying chamber inside, and the drying chamber (1) is provided with a feed inlet communicating with the drying chamber; the air supply system (3) is installed on the drying chamber (1), and the air outlet and air inlet of the air supply system (3) are respectively located at the bottom and top of the drying chamber of the drying chamber (1); the air-source system (2) is used for dehumidifying and heating the air transported in the air supply system (3); characterized in that, It also includes multiple mesh belt assemblies, which are arranged vertically in the drying chamber of the drying box (1). The mesh belt assembly includes conveyor roller 1 (4), conveyor roller 2 (5), mesh belt 1 (6), multiple intermediate strips 1 (7) and multiple elastic intermediate strips 1 (8). Conveyor roller 1 (4) and conveyor roller 2 (5) are respectively rotatably installed on the left and right sides of the drying chamber of the drying box (1). Conveyor roller 2 (5) is located below the feed inlet of the drying box (1). Mesh belt 1 (6) is fitted on conveyor roller 1 (4) and conveyor roller 2 (5). Mesh belt 1 (6) is provided with rectangular mesh holes. The long side of the mesh is arranged parallel to the conveyor roller (4). Multiple intermediate strips (7) and multiple elastic intermediate strips (8) are installed in the drying chamber of the drying box (1). The lower end face of the multiple intermediate strips (7) slides in contact with the upper surface of the upper layer of the mesh belt (6). The multiple intermediate strips (7) are located on the right side of the mesh belt (6) and are respectively located in the middle of multiple mesh holes. The lower end face of the multiple elastic intermediate strips (8) slides in contact with the upper surface of the lower layer of the mesh belt (6). The multiple elastic intermediate strips (8) are located on the left side of the mesh belt (6) and are respectively located in the middle of multiple mesh holes.

2. The air-source multi-layer mesh belt dryer as described in claim 1, characterized in that, It also includes multiple inclined annular grooves (9) and multiple vertical rods (10). Multiple inclined annular grooves (9) are provided on the outer surface of multiple conveying rollers (4). One end of multiple vertical rods (10) is connected to multiple elastic intermediate strips (8) respectively, and the other end of multiple vertical rods (10) is slidably installed in multiple inclined annular grooves (9).

3. The air-source multi-layer mesh belt dryer as described in claim 2, characterized in that, It also includes multiple balls (11), and the ends of multiple vertical rods (10) are all equipped with balls (11), and the multiple balls (11) are slidably installed in multiple oblique annular grooves (9).

4. The air-source multi-layer mesh belt dryer as described in claim 1, characterized in that, It also includes a grading mesh belt assembly, which is installed below multiple mesh belt assemblies. The grading mesh belt assembly is used to grade materials. The grading mesh belt assembly includes conveyor roller three (12), conveyor roller four (13), mesh belt two (14), multiple intermediate strips two (15), multiple intermediate strips three (16), discharge chute one (17) and discharge chute two (18). Conveyor roller three (12) and conveyor roller four (13) are rotatably installed on the left and right sides of the drying chamber of the drying box (1). Mesh belt two (14) is fitted on conveyor roller three (12) and conveyor roller four (13). Rectangular mesh holes two are provided on mesh belt two (14). The long side of multiple mesh holes two is parallel to conveyor roller three (12). Multiple intermediate strips two (15) and multiple intermediate strips three (16) are also included. All are installed in the drying chamber of the drying box (1). The lower end face of multiple intermediate strips 2 (15) slides in contact with the upper surface of the upper layer of mesh belt 2 (14). Multiple intermediate strips 2 (15) are located on the right side of mesh belt 2 (14) and are respectively located in the middle of multiple mesh holes 2. The lower end face of multiple intermediate strips 3 (16) slides in contact with the upper surface of the lower layer of mesh belt 2 (14). Multiple intermediate strips 3 (16) are located on the left side of mesh belt 2 (14) and are respectively located in the middle of multiple mesh holes 2. Discharge trough 1 (17) and discharge trough 2 (18) are respectively installed on the left and right sides of the drying box (1). The input end of discharge trough 1 (17) is connected to the left end of mesh belt 2 (14), and the input end of discharge trough 2 (18) is connected to the lower right side of mesh belt 2 (14).

5. The air-source multi-layer mesh belt dryer as described in claim 1, characterized in that, The air source system (2) includes heat exchanger one (19), heat exchanger two (20) and heat pump body (21). Heat exchanger one (19) is connected to heat exchanger two (20) through heat pump body (21). Heat exchanger one (19) is used to absorb heat from the air. The heat from the air is transported to heat exchanger two (20) through heat pump body (21). Heat exchanger two (20) releases heat into the air supply system (3).

6. The air-source multi-layer mesh belt dryer as described in claim 5, characterized in that, The air supply system (3) includes an air inlet hood (22), a heat exchange chamber one (23), a heat exchange chamber two (24), and an air outlet (25). The air inlet hood (22) is installed on the top of the drying box (1). The air inlet of the air inlet hood (22) is located at the top of the drying chamber of the drying box (1). The heat exchange chamber one (23) and the heat exchange chamber two (24) are installed outside the drying box (1). The air outlet (25) is installed at the bottom of the drying chamber of the drying box (1). The air inlet hood (22) and the heat exchange chamber one (23) are connected by a pipe one. The heat exchange chamber one (23) and the heat exchange chamber two (24) are connected by a pipe two. The heat exchange chamber two (24) and the air outlet (25) are connected by a pipe three. One heat absorption end of the heat exchange chamber one (23) is located inside the heat exchanger one (19). The heat dissipation end of the heat exchange chamber two (24) is located in the heat pump body (21).

7. The air-source multi-layer mesh belt dryer as described in claim 6, characterized in that, It also includes a fan (26), which is installed in the air inlet shroud (22).

8. An air-source multi-layer mesh belt dryer as described in claim 6, characterized in that, It also includes a heater (27), which is installed in the air outlet (25).

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