Drying device with high drying efficiency

By introducing a dual-axis motor-driven drying mechanism and preheating components into the drying equipment, extending the air residence time, increasing the heating temperature, and using a cleaning brush to clean the filter, the problems of low drying efficiency and easy clogging of the filter in existing equipment are solved, achieving a high-efficiency and energy-saving drying effect.

CN223319499UActive Publication Date: 2025-09-09JIANGSU WODON WEAR RESISTANT NEW MATERIAL CO LTD
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Patent Information

Application Number
CN202422125533.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-30
Publication Date
2025-09-09
Estimated Expiration
2034-08-30

AI Technical Summary

Technical Problem

The drying efficiency of existing drying equipment is low, the filter is easily clogged and inconvenient to disassemble and clean, which affects the production efficiency of flux-cored welding wire.

Method used

The drying mechanism is driven by a dual-axis motor. The reflux groove and guide plate extend the air residence time and increase the heating temperature. A cleaning brush is provided to clean the filter. The preheating component is combined with waste heat for pre-drying. The connecting component facilitates the removal and replacement of the filter.

Benefits of technology

It improves drying efficiency, prolongs air heating time, avoids filter clogging, saves energy, and enhances the practicality of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a drying device with high drying efficiency, and particularly relates to the technical field of drying equipment, the drying device comprises a machine base, a conveying belt is arranged on the inner side of the machine base, and a plurality of through holes are formed in the outer wall of the conveying belt. Air flowing between the first partition plate and the second partition plate is impacted by air passing through the backflow groove, the speed of the air is reduced, the residence time of the air is prolonged, the heating time of the air is longer, the temperature of the air is higher, the drying effect and efficiency are improved, waste heat in the U-shaped shell can be recycled, meanwhile, the cleaning brush can be driven to rotate to sweep the filter screen, and the cleaning effect is improved. A connecting assembly is matched, so that the air guide cover and the air duct can be conveniently disassembled, the use and the second filter screen can be conveniently disassembled, cleaned or replaced, and the practicability is higher; and through the preheating assembly, heat in sucked waste heat air can be used for conducting pre-drying treatment on the welding wires, energy consumption is reduced, and the drying efficiency is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of drying equipment, in particular to a drying device with high drying efficiency. Background Art

[0002] Flux-cored welding wire is also called powder-cored welding wire or tubular welding wire. It is divided into two categories: gas-entrained and non-gas-entrained. The surface of flux-cored welding wire is the same as that of solid welding wire. It is made of low-carbon steel or low-alloy steel with good plasticity. Its manufacturing method is to first roll the steel strip into a U-shaped cross-section, then add the welding powder prepared according to the dosage to the U-shaped steel strip, and finally roll it tightly with a rolling mill. Finally, it is drawn into flux-cored welding wire of different specifications. During the production and processing of flux-cored welding wire, drying equipment is required to be used for its drying.

[0003] At present, most drying equipment used for the production and processing of flux-cored welding wire usually adopts a hot air blower or a blower in conjunction with an electric heating wire / heating rod to heat the air, and then blows it to the surface of the flux-cored welding wire to dry it. However, the contact time between the air and the electric heating wire or heating rod is short, which easily leads to a low temperature of the air heating, thereby affecting the drying effect and making its drying efficiency for the flux-cored welding wire relatively low. In addition, the blower is usually equipped with a filter to filter dust and other particles in the transported air. However, the filter is prone to clogging after long-term use, so workers need to regularly disassemble, clean or replace it. The existing filter in this regard is usually fixed by bolts, which makes it inconvenient to disassemble, replace and clean the filter, and is easy to use, but relatively poor in practicality. Utility Model Content

[0004] The purpose of the present invention is to provide a drying device with high drying efficiency to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a drying device with high drying efficiency, including a machine base, a conveyor belt is provided on the inner side of the machine base, and a plurality of through holes are opened on the outer wall of the conveyor belt, a drying box is fixedly installed on the top of the machine base, a feed port and a discharge port are respectively opened at symmetrical positions on the side walls of the drying box, and door curtains are provided in the feed port and the discharge port, a drying mechanism is provided on the top of the drying box, a preheating component connected to the drying mechanism is provided on the right side of the machine base, the drying mechanism includes an air duct, a double-shaft motor is fixedly installed on one side of the air duct, and the double-shaft The output end on the left side of the motor is connected to a fan blade, one end of the air duct is connected to duct one and duct two respectively through a three-way valve, a lower end of the duct is connected to a blow hood in the drying box, a U-shaped shell is fixedly installed on the inner side of the machine base and the inner side of the conveyor belt, a plurality of blow pipes with blow heads are fixedly installed in the U-shaped shell, one end of the blow pipe is connected to duct two, the bottom of the U-shaped shell is connected to the preheating component through connecting pipe one, one end of the preheating component is connected to an air guide cover through connecting pipe two, and filter screen two and filter screen one are movably embedded and installed at the air guide cover and the air duct opening respectively.

[0006] Furthermore, the drying mechanism also includes a partition 1, two of which are provided, and the partition 1 is fixedly installed on the side of the fan blade away from the dual-axis motor in the air duct, and a partition 2 is provided on the left side of the partition 1 away from the fan blade. The side walls of the partition 1 and the partition 2 are both provided with openings, and a plurality of reflow grooves are equidistantly provided on one side of the two partition 1s. A guide plate is provided on one side of the partition 1 between adjacent reflow grooves, and a plurality of heating rods are equidistantly provided between the two partition 1s and between the partition 2 and the partition 1, and the heating rods and the guide plates are staggered. A wind collecting hood connected to the upper opening of the right partition 1 is provided on one side of the air duct, and the filter 1 is slidably sleeved on the outside of the output end on the right side of the dual-axis motor. A fixing ring is provided between the filter 1 and the filter 2, and a fixing ring is symmetrically provided on one side of the fixing ring. The support rod has two ends which are respectively inserted into the jacks provided in the side walls of filter one and filter two. A limit ring is rotatably embedded in the inner wall of the fixing ring, and a cleaning brush is fixedly installed on the inner wall of the limit ring. A docking post is fixedly installed on one side of the cleaning brush, and one end of the docking post is inserted into the docking groove provided at the right output end of the dual-axis motor. The outer side of the air guide cover is connected to the air duct through a connecting component. The setting of the drying mechanism can synchronously blow hot air symmetrically to the upper and lower parts of the flux-cored welding wire for drying, and at the same time can prolong the residence time of the air in the air duct, thereby prolonging the heating time of the air, making the blown air temperature higher, improving the drying effect and efficiency, and can drive the cleaning brush to rotate to clean filter one and filter two to avoid some dust covering their surfaces clogging filter one and filter two and affecting their filtering effect.

[0007] Furthermore, the connecting assembly includes a fixing rod, and the fixing rod is symmetrically arranged on both sides of the air guide cover, a fixing shell is symmetrically provided on the outer wall of one end of the air duct, and a through groove adapted to the fixing rod is opened on the side wall of the fixing shell, a gear is rotatably installed in the fixing shell, a plurality of tooth grooves meshing with the gear are opened on the outer wall of the fixing rod, a block meshing with the gear is rotatably installed in the fixing shell, one end of the connecting shaft of the block is connected to a handle outside the fixing shell, and a torsion spring is symmetrically provided on the outer wall of the connecting shaft of the block, and the torsion springs are distributed on both sides of the block, and the two ends of the torsion spring are respectively fixedly connected to the inner wall of the fixing shell and the block. The setting of the connecting assembly can facilitate the connection between the air guide cover and the air duct, facilitate the fixation of filter screen 1 and filter screen 2, and also facilitate their disassembly, cleaning or replacement.

[0008] Furthermore, the preheating assembly includes a preheating box, and the preheating box is fixedly installed on the right side of the machine base. A mesh cylinder is fixedly installed in the preheating box. A heat conduction pipe is provided on the outside of the mesh cylinder, and one end of the heat conduction pipe is connected to connecting pipe one, and the other end of the heat conduction pipe is connected to connecting pipe two. The heat conduction pipes are distributed in a spiral form. The setting of the preheating assembly can utilize the waste heat air dispersed in the U-shaped shell to flow through the heat conduction pipe, thereby pre-drying the flux-cored welding wire passing through the mesh cylinder, improving the drying effect, and improving the utilization of waste heat, saving resources.

[0009] Furthermore, the openings on the partition one and the partition two are staggered in an upper and lower distribution, the guide plate is tilted, and the docking column is a hexagonal prism structure to form a tortuous curve channel to extend the residence time of the air.

[0010] Furthermore, the clamping block is arc-shaped, and a blocking rod is fixedly installed in the fixing shell on a side of the clamping block close to the fixing rod to limit the clamping block and improve the limiting and fixing effect of the clamping block on the fixing rod.

[0011] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0012] 1. The utility model uses a drying mechanism and can utilize the structural arrangement of the reflux groove and the guide plate so that the air passing through the reflux groove will flow back and impact the air flowing between the two partition plates 1 and the partition plates 1 and 2, slowing down the air, thereby extending its retention time, making it heated for a longer time and at a higher temperature, thereby improving the drying effect and efficiency. It can also induce the outside air and the waste heat in the U-shaped shell to be reused, and at the same time drive the cleaning brush to rotate and clean the filter to prevent it from being blocked and affecting the filtering effect. With the help of the connecting assembly, the air guide cover and the air duct can be easily separated, so that the filter and the filter can be disassembled for use, cleaning or replacement, which is more practical.

[0013] 2. The utility model can reuse the heat in the sucked waste hot air through the preheating component to pre-dry the flux-cored welding wire, saving energy consumption and improving drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0015] Figure 1 It is a schematic structural diagram of the utility model as a whole;

[0016] Figure 2 It is a rear view structural diagram of the utility model;

[0017] Figure 3 This utility model Figure 1 Schematic diagram of the enlarged structure of A;

[0018] Figure 4 This utility model Figure 1 Schematic diagram of the enlarged structure of B;

[0019] Figure 5 It is a schematic diagram of the structure between the fixing ring and the cleaning brush of the utility model;

[0020] Figure 6 This is a schematic diagram of the structure between the preheating box and the heat pipe of the utility model;

[0021] In the figure: 1. Machine base; 2. Conveyor belt; 3. Drying box; 4. Preheating box; 5. Air duct; 6. Blowing hood; 7. Blowing pipe; 8. U-shaped shell; 9. Dual-axis motor; 10. Fan blades; 11. Filter one; 12. Filter two; 13. Partition one; 14. Partition two; 15. Recirculation trough; 16. Guide plate; 17. Heating rod; 18. Air guide hood; 19. Support rod; 20. Fixed ring; 21. Limiting ring; 22. Cleaning brush; 23. Docking column; 24. Fixed rod; 25. Fixed shell; 26. Gear; 27. Block; 28. Torsion spring; 29. ​​Stop rod; 30. Heat pipe; 31. Mesh tube. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] like Figure 1 - Figure 6The drying device with high drying efficiency shown in the figure includes a base 1, a conveyor belt 2 is provided on the inner side of the base 1, and a plurality of through holes are opened on the outer wall of the conveyor belt 2, a drying box 3 is fixedly installed on the top of the base 1, and a feed port and a discharge port are respectively opened at symmetrical positions on the side walls of the drying box 3, and door curtains are provided in the feed port and the discharge port, a drying mechanism is provided on the top of the drying box 3, a preheating component connected to the drying mechanism is provided on the right side of the base 1, and the drying mechanism includes an air duct 5, a dual-axis motor 9 is fixedly installed on one side of the air duct 5, and a fan blade 1 is connected to the output end on the left side of the dual-axis motor 9 0, one end of the air duct 5 is connected to the conduit 1 and the conduit 2 respectively through the three-way valve, the lower end of the conduit is connected to the blowing hood 6 in the drying box 3, a U-shaped shell 8 is fixedly installed on the inner side of the machine base 1 and the inner side of the conveyor belt 2, a plurality of blowing pipes 7 with blowing heads are fixedly installed in the U-shaped shell 8, one end of the blowing pipe 7 is connected to the conduit 2, the bottom of the U-shaped shell 8 is connected to the preheating component through the connecting pipe 1, and one end of the preheating component is connected to the air guide cover 18 through the connecting pipe 2, and the air guide cover 18 and the opening of the air duct 5 are respectively movably embedded with the filter screen 2 12 and the filter screen 11. In this example, the drying mechanism also includes a partition 13, two partitions 13 are provided, and the partition 13 is fixedly installed on the side of the fan blade 10 away from the dual-axis motor 9 in the air duct 5, and a partition 2 14 is provided on the left side of the partition 13 away from the fan blade 10. The side walls of the partition 13 and the partition 2 14 are both provided with openings. A plurality of reflow grooves 15 are equidistantly provided on one side of the two partitions 13. A guide plate 16 is provided on one side of the partition 13 between adjacent reflow grooves 15. A plurality of heating rods 17 are equidistantly provided between the two partitions 13 and between the partition 2 14 and the partition 13, and the heating rods 17 and the guide plates 16 are staggered. A wind collecting hood connected to the opening on the right partition 13 is provided on one side of the air duct 5. The filter 11 is slidably sleeved on the outside of the output end on the right side of the dual-axis motor 9. A fixing ring 20 is provided between the filter 11 and the filter 2 12, and a symmetrical through-hole is provided on one side of the fixing ring 20. The support rod 19 of the fixing ring 20, and the two ends of the support rod 19 are respectively inserted into the jacks opened on the side walls of the filter 11 and the filter 2 12, the inner wall of the fixing ring 20 is rotatably embedded with a limit ring 21, and the inner wall of the limit ring 21 is fixedly installed with a cleaning brush 22, and a docking post 23 is fixedly installed on one side of the cleaning brush 22, and one end of the docking post 23 is inserted into the docking groove opened at the right output end of the dual-axis motor 9. The outer side of the air guide cover 18 is connected to the air duct 5 through a connecting component. The setting of the drying mechanism can synchronously blow hot air symmetrically to the upper and lower sides of the flux-cored welding wire for drying, and at the same time can prolong the residence time of the air in the air duct 5, thereby prolonging the heating time of the air, making the blown air temperature higher, improving the drying effect and efficiency, and can drive the cleaning brush 22 to rotate to clean the filter 11 and the filter 2 12 to prevent some dust on their surface from clogging the filter 11 and the filter 2 12 and affecting their filtering effect.In this example, the connecting assembly includes a fixing rod 24, and the fixing rod 24 is symmetrically arranged on both sides of the air guide cover 18. A fixing shell 25 is symmetrically provided on the outer wall of one end of the air duct 5, and the side wall of the fixing shell 25 is provided with a through groove adapted to the fixing rod 24. A gear 26 is rotatably installed in the fixing shell 25, and a plurality of tooth grooves are provided on the outer wall of the fixing rod 24 to engage with the gear 26. A block 27 is rotatably installed in the fixing shell 25 to engage with the gear 26. One end of the connecting shaft of the block 27 is connected to a handle outside the fixing shell 25, and the outer wall of the connecting shaft of the block 27 is symmetrically provided with a torsion spring 28, and the torsion spring 28 is distributed on both sides of the block 27. The two ends of the torsion spring 28 are respectively fixedly connected to the inner wall of the fixing shell 25 and the block 27. The setting of the connecting assembly can facilitate the connection between the air guide cover 18 and the air duct 5, facilitate the fixation of the filter 11 and the filter 2, and facilitate their disassembly, cleaning or replacement. In this example, the preheating assembly includes a preheating box 4, and the preheating box 4 is fixedly installed on the right side of the machine base 1. A mesh tube 31 is fixedly installed in the preheating box 4. A heat conduction pipe 30 is sleeved on the outside of the mesh tube 31, and one end of the heat conduction pipe 30 is connected to the connecting pipe 1, and the other end of the heat conduction pipe 30 is connected to the connecting pipe 2. The heat conduction pipe 30 is distributed in the form of a spiral line. The setting of the preheating assembly can utilize the waste heat air dispersed in the U-shaped shell 8 to flow through the heat conduction pipe 30, thereby pre-drying the flux-cored welding wire passing through the mesh tube 31, improving the drying effect, and improving the utilization of waste heat, saving resources.

[0024] In this example, the openings on partitions 13 and 14 are staggered vertically, the guide plate 16 is tilted, and the docking post 23 is a hexagonal prism structure, forming a circuitous curved channel and extending air retention time. In this example, the clamping block 27 is arc-shaped, and a stopper 29 is fixedly mounted within the fixed housing 25 on the side of the clamping block 27 near the fixed rod 24 to limit the position of the clamping block 27 and enhance the clamping block 27's ability to retain the fixed rod 24.

[0025] The working principle of the present utility model is as follows: when in use, the flux-cored welding wire is passed through the mesh tube 31 and then conveyed to the drying box 3 by the conveyor belt 2 for drying. During drying, the dual-axis motor 9 is started so that the left output end drives the fan blade 10 to rotate, thereby sucking the outside air into the air duct 5, and the heating rod 17 is started at the same time. The air entering the air duct 5 will flow through the channel between the two partitions 13 and between the partition 13 and the partition 2 14, and some air will flow through the reflow groove 15. The air flowing through the reflow groove 15 will impact the air flowing between the partitions 13, thereby reducing its flow rate, thereby extending the residence time of the air, thereby extending the heating time of the air, and increasing the air temperature at the blowing point, so that it can better dry the flux-cored welding wire. The drying process is carried out by blowing hot air from the top and bottom simultaneously, thereby improving the drying efficiency. At the same time, the waste heat in the U-shaped shell 8 is moved to the wind guide cover 18, so that the air containing the waste heat is returned to the air duct 5 for reheating, thereby improving the heating efficiency and reducing energy consumption. The reflux heat will flow through the heat conduction pipe 30, thereby utilizing the waste heat in the air to perform preliminary pre-drying treatment on the flux-cored welding wire passing through the mesh tube 31, thereby improving the drying effect and improving the utilization of energy. When the dual-axis motor 9 is working, the output end on the right side will cooperate with the docking column 23 to drive the cleaning brush 22, and the cleaning brush 22 rotates synchronously under the support of the fixing ring 20 and the limit ring 21, so that the cleaning brush 22 cleans the filter 11 and the filter 2 12 The cleaning process is carried out to prevent the filter 11 and the filter 2 12 from being blocked and affecting the filtering effect. When the filter 11 and the filter 2 12 need to be disassembled for cleaning or replacement, the handle can be twisted to drive the connecting shaft of the clamping block 27 to rotate, thereby driving the clamping block 27 to rotate and separate from the gear 26. At the same time, the clamping block 27 will also twist the torsion spring 28, and then the air guide cover 18 can be pulled to drive the fixing rod 24 to move out of the fixing shell 25. Then the support rod 19 can be separated from the filter 11 and the filter 2 12. After that, the used set filter 2 12 can be disassembled for cleaning or replacement. When installing the filter 11 and the filter 2 12, the filter 11 is set on the outside of the output end on the right side of the dual-axis motor 9 and embedded in the corresponding position at one end of the air duct 5, and then one end of the support rod 19 is inserted into The filter screen 11 is inserted into the corresponding socket on the filter screen 11, and then the filter screen 2 12 is embedded and installed in the corresponding position on one side of the air guide cover 18. After that, the fixing rod 24 passes through the fixing shell 25 and engages with the gear 26, so that the tooth groove on the fixing rod 24 drives the gear 26 to rotate, and the teeth of the gear 26 will squeeze and push the card block 27 to flip. When the teeth on the gear 26 that squeeze and push the card block 27 to move are misaligned with it, the card block 27 will reset and rotate under the torsion of the torsion spring 28, so that the card block 27 is engaged with the gear 26 again, and so on. At the same time, when the air guide cover 18 moves to the appropriate position, one end of the support rod 19 is inserted into the socket at one end of the filter screen 2 12, so that the air guide cover 18 is connected to the air duct 5, and the support rod 19 is used to fix the position of the filter screen 2 12 and the filter screen 1 11.It is convenient to fix and disassemble the filter 11 and the filter 2 12, and to clean or replace them. It is easy to use and more practical.

[0026] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A drying device with high drying efficiency, comprising a base (1), a conveyor belt (2) provided on the inner side of the base (1), and a plurality of through holes provided on the outer wall of the conveyor belt (2), a drying box (3) fixedly mounted on the top of the base (1), a feed port and a discharge port provided at symmetrical positions on the side walls of the drying box (3), and door curtains provided in the feed port and the discharge port, characterized in that: The top of the drying box (3) is provided with a drying mechanism, the right side of the machine base (1) is provided with a preheating assembly connected to the drying mechanism, the drying mechanism includes an air duct (5), a double-shaft motor (9) is fixedly installed on one side of the air duct (5), and the output end of the left side of the double-shaft motor (9) is connected to a fan blade (10), one end of the air duct (5) is connected to a conduit 1 and a conduit 2 respectively through a three-way valve, and the lower end of the conduit is connected to a blow hood (6) in the drying box (3), the machine base (1 ) is fixedly installed on the inner side of the conveyor belt (2), and a plurality of blowing pipes (7) with blowing heads are fixedly installed in the U-shaped shell (8), one end of the blowing pipe (7) is connected to the second conduit, the bottom of the U-shaped shell (8) is connected to the preheating component through the first connecting pipe, and one end of the preheating component is connected to the air guide cover (18) through the second connecting pipe, and the air guide cover (18) and the opening of the air duct (5) are respectively movably embedded with the second filter screen (12) and the first filter screen (11).

2. The drying device with high drying efficiency according to claim 1, characterized in that: The drying mechanism further comprises a partition plate (13), two of which are provided, and the partition plate (13) is fixedly installed on the side of the fan blade (10) away from the dual-axis motor (9) in the air duct (5), and a partition plate (14) is provided on the left side of the partition plate (13) away from the fan blade (10), and the side walls of the partition plate (13) and the partition plate (14) are both provided with openings, and a plurality of reflow grooves (15) are equidistantly provided on one side of the two partition plates (13), and a guide plate (16) is provided on one side of the partition plate (13) between adjacent reflow grooves (15), and a plurality of heating rods (17) are equidistantly provided between the two partition plates (13) and between the partition plate (14) and the partition plate (13), and the heating rods (17) and the guide plate (16) are staggered and distributed, and a partition plate (16) is provided on one side of the air duct (5) and on the right side thereof. (13) An air collecting hood connected to the upper opening, the filter screen 1 (11) is slidably sleeved on the outer side of the output end of the right side of the dual-axis motor (9), a fixing ring (20) is provided between the filter screen 1 (11) and the filter screen 2 (12), a support rod (19) penetrating the fixing ring (20) is symmetrically provided on one side of the fixing ring (20), and the two ends of the support rod (19) are respectively inserted into the jacks opened on the side walls of the filter screen 1 (11) and the filter screen 2 (12), a limit ring (21) is rotatably embedded in the inner wall of the fixing ring (20), a cleaning brush (22) is fixedly installed on the inner wall of the limit ring (21), a docking column (23) is fixedly installed on one side of the cleaning brush (22), and one end of the docking column (23) is inserted into the docking groove opened on the right side of the output end of the dual-axis motor (9), and the outer side of the air guide hood (18) is connected to the air duct (5) through a connecting component.

3. The drying device with high drying efficiency according to claim 2, characterized in that: The connecting assembly includes a fixing rod (24), and the fixing rod (24) is symmetrically arranged on both sides of the wind guide cover (18); a fixing shell (25) is symmetrically provided on the outer wall of one end of the air duct (5), and a through groove adapted to the fixing rod (24) is provided on the side wall of the fixing shell (25); a gear (26) is rotatably installed in the fixing shell (25); a plurality of tooth grooves meshing with the gear (26) are provided on the outer wall of the fixing rod (24); a clamping block (27) meshing with the gear (26) is rotatably installed in the fixing shell (25); one end of the connecting shaft of the clamping block (27) is connected to a handle outside the fixing shell (25); a torsion spring (28) is symmetrically provided on the outer wall of the connecting shaft of the clamping block (27), and the torsion spring (28) is distributed on both sides of the clamping block (27); and the two ends of the torsion spring (28) are respectively fixedly connected to the inner wall of the fixing shell (25) and the clamping block (27).

4. The drying device with high drying efficiency according to claim 1, characterized in that: The preheating assembly comprises a preheating box (4), and the preheating box (4) is fixedly installed on the right side of the machine base (1); a mesh tube (31) is fixedly installed in the preheating box (4); a heat conducting pipe (30) is sleeved on the outer side of the mesh tube (31); one end of the heat conducting pipe (30) is connected to a first connecting pipe, and the other end of the heat conducting pipe (30) is connected to a second connecting pipe; the heat conducting pipe (30) is distributed in a spiral form.

5. The drying device with high drying efficiency according to claim 2, characterized in that: The openings on the partition plate 1 (13) and the partition plate 2 (14) are arranged in an up-down staggered distribution, the guide plate (16) is arranged in an inclined manner, and the docking column (23) is a hexagonal prism structure.

6. The drying device with high drying efficiency according to claim 3, characterized in that: The clamping block (27) is arc-shaped, and a blocking rod (29) is fixedly installed on a side of the clamping block (27) close to the fixing rod (24) in the fixing shell (25).