Drying device with uniform drying function
By introducing hollow shafts, spiral blades, and heat recovery components into the drying device, the problems of uneven material drying and energy waste are solved, achieving a highly efficient and energy-saving material drying process.
Patent Information
- Application Number
- CN202520016339.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-01-06
AI Technical Summary
Existing drying equipment has shortcomings in material uniformity, efficiency, energy utilization efficiency, and discharge process, resulting in problems such as uneven drying quality, energy waste, and material residue.
The design incorporates a drying cylinder, hollow shaft, spiral blades, hot and cold air fan, heat recovery components, and dehumidification box. The spiral blades enable uniform material conveying and heating, hot air recovery and dehumidification, ensuring thorough material drying and reducing energy consumption.
It achieves uniform drying of materials, improves drying efficiency, reduces energy consumption, and ensures the continuity of drying effect and smooth discharge through heat recovery and dehumidification measures.
Smart Images
Figure CN223769211U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to material drying technical field especially relates to a drying device of even drying. BACKGROUND
[0002] In the field of material drying, the uniformity, efficiency and energy utilization efficiency of material drying have always been the focus, and the traditional drying device often has many deficiencies in the drying process.
[0003] Firstly, in terms of material conveying and drying time control, most drying devices are simple in structure, and the material stays in the drying cavity for a limited time and is difficult to effectively extend, if you want to increase the drying time, you usually need to increase the size of the drying cylinder, which not only increases the equipment cost and floor area, but also is not practical for some enterprises with limited production space, which may result in insufficient drying of the material and affect the product quality.
[0004] Secondly, in terms of drying effect, the heating method of the traditional drying device is not reasonable enough to achieve uniform heating of the material, mainly in that the hot air and the material do not contact sufficiently and uniformly, resulting in inconsistent drying degree of different parts of the material, which may cause local over-drying and other parts still wet, reducing the overall drying quality.
[0005] Thirdly, energy consumption is a key problem in the drying process, and the traditional drying device lacks effective heat recovery mechanism, the hot air involved in drying is directly discharged after completing a drying process, a large amount of heat energy is wasted, which not only increases the production cost, but also does not meet the development requirements of modern industry energy saving, and from the drying environment point of view, the moisture content in the air has an important influence on the drying effect, the traditional device has no corresponding dehumidification measures, when the hot air contains more moisture, it will reduce the drying efficiency, and even may cause the material to reabsorb moisture, affecting the continuity and final effect of drying.
[0006] In addition, if there is no suitable auxiliary discharging structure for the material after drying, the material may be left at the bottom of the drying cylinder, which not only affects the next drying operation, but also may cause waste of material and pollution of equipment.
[0007] In summary, these problems of the existing drying device urgently need a new type of uniform drying device to solve, in order to improve the drying efficiency, ensure the drying quality, reduce the energy consumption and realize the smooth discharging.
[0008] The information disclosed in this BACKGROUND section is only intended to increase an understanding of the general background of the present utility model and is not intended to be a recognition or any form of suggestion that this information forms a prior art that is already known to those of ordinary skill in the art. CONTENT OF THE UTILITY MODEL
[0009] The purpose of this invention is to provide a drying device for uniform drying, which can achieve uniform drying of materials and improve drying efficiency, and achieve energy saving and emission reduction through heat recovery and dehumidification operations.
[0010] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a uniform drying device, comprising a drying cylinder, a hot and cold air blower, a conveying pipe, a hollow shaft, a drive assembly, a conveying assembly, a cleaning component, a heat recovery assembly, an inlet pipe, and an outlet pipe;
[0011] The hollow shaft is rotatably installed inside the drying cylinder, and multiple through holes are provided on the hollow shaft. The feed pipe is fixedly installed at the bottom of the drying cylinder, and the discharge pipe is fixedly installed at the bottom outer side of the drying cylinder and connected to the drying cylinder. The drive assembly is located at the bottom of the drying cylinder and connected to the hollow shaft. The conveying assembly is located inside the drying cylinder and connected to the hollow shaft. The cleaning component is located on the conveying assembly and contacts the bottom inner wall of the drying cylinder. The hot and cold air fan is fixedly installed at the bottom of the drying cylinder. The air outlet of the hot and cold air fan is fixedly installed with a conveying pipe that is rotatably and sealingly connected to the bottom end of the hollow shaft. The heat recovery assembly is located on the drying cylinder and connected to the air inlet of the hot and cold air fan.
[0012] A further feature of this invention is that the drive assembly includes a motor, a first bevel gear, and a second bevel gear. The motor is fixedly installed at the bottom of the drying cylinder, and the first bevel gear and the second bevel gear are respectively fixedly sleeved on the output shaft and the hollow shaft of the motor, and the first bevel gear and the second bevel gear mesh with each other.
[0013] By adopting the above technical solution, driving force can be provided for the hollow shaft.
[0014] The present invention is further configured such that: the conveying assembly includes a first spiral blade, a second spiral blade, and an outer mesh cylinder; the first spiral blade is fixedly installed on the outer side of the hollow shaft; the outer mesh cylinder is fixedly installed on the side of the first spiral blade away from the hollow shaft; the second spiral blade is fixedly installed on the outer side of the outer mesh cylinder; the second spiral blade is in contact with the inner wall of the drying cylinder; and the spiral directions of the first spiral blade and the second spiral blade are opposite.
[0015] By adopting the above technical solution, the material to be dried can be conveyed as the hollow shaft rotates, and the spiral blades 2 and 1 can be controlled to convey the material upward and downward respectively.
[0016] A further feature of this invention is that the cleaning component is an I-shaped scraper, and an I-shaped scraper is fixedly installed on the bottom side of the spiral blade, with the bottom side of the scraper in contact with the bottom inner wall of the drying cylinder.
[0017] By adopting the above technical solution, the material on the inner wall of the bottom of the drying cylinder can be scraped as the spiral blades move along with the hollow shaft, thus facilitating the discharge of the dried material through the discharge pipe.
[0018] A further feature of this invention is that the heat recovery assembly includes a return pipe, an annular pipe, and multiple branch pipes. The air inlet of the hot and cold air blower is connected to the return pipe. Multiple branch pipes connected to the drying cylinder are fixedly installed on the top of the drying cylinder. The top of the multiple branch pipes is fixedly installed with the same annular pipe. The top of the return pipe is connected to the annular pipe.
[0019] By adopting the above technical solution, air that still has a certain temperature after the material is dried can be extracted from the top of the drying cylinder and returned to the air inlet of the hot and cold air blower for reuse, thereby achieving the recovery and utilization of heat.
[0020] A further feature of this invention is that a filter plate is fixedly installed on the top inner wall of the drying cylinder, and the bottom ends of multiple branch pipes are all located above the filter plate.
[0021] By adopting the above technical solution, it is possible to prevent materials from being sucked into the branch pipe.
[0022] A further feature of this invention is that the heat recovery assembly also includes a dehumidification box filled with dehumidifying filter material, and a return pipe passes through the dehumidification box and remains in communication with it.
[0023] By adopting the above technical solution, it is possible to dehumidify the air with a certain amount of heat drawn from the drying cylinder.
[0024] A further feature of this invention is that a support ring is fixedly installed on the outer side of the drying cylinder, and multiple support legs are fixedly installed on the bottom side of the support ring. The feed pipe, discharge pipe, and return pipe are all fixedly connected to the corresponding support legs.
[0025] By adopting the above technical solution, stable support can be provided for the drying cylinder, feed pipe, discharge pipe and return pipe.
[0026] A further feature of this invention is that a feed hopper is fixedly installed at the bottom end of the feed pipe.
[0027] By adopting the above technical solution, it is convenient to add the material to be dried into the drying cylinder through the feed pipe.
[0028] A further feature of this invention is that an inner mesh cylinder is fixedly installed on the inner wall of the hollow shaft.
[0029] By adopting the above technical solution, it is possible to prevent materials from entering the hollow shaft through the through holes during the drying and conveying process.
[0030] The beneficial effects of this utility model are:
[0031] The conveying assembly, motor, and hollow shaft work together to transport materials entering the drying cylinder through the feed pipe. Because the spiral blades (first and second) in the conveying assembly rotate in opposite directions, materials near the inner wall of the drying cylinder are conveyed upwards and then guided to the hollow shaft at the highest point before being conveyed downwards. This increases the drying time without increasing the cylinder's size. Simultaneously, a hot and cold air fan continuously injects hot air into the hollow shaft, which is then blown through the through-holes onto the material being conveyed, significantly improving drying efficiency. The material drying effect and rate are improved, and the heat recovery component can recover and reuse the hot air involved in the drying process, thereby reducing energy consumption during the material drying process. The dehumidification box can dehumidify the recovered air with a certain amount of heat, thus ensuring that the air blown onto the material through the through hole remains dry, thereby further improving the material drying effect. As the hollow shaft continues to rotate, the spiral blades in the conveying component drive the cleaning component to scrape the dried material that has been conveyed to the bottom inner wall of the drying cylinder, so that it can be directly discharged from the drying cylinder through the discharge pipe. Attached Figure Description
[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0033] Figure 1 This is a three-dimensional structural diagram of a drying device for uniform drying proposed in this utility model;
[0034] Figure 2 This is a cross-sectional structural schematic diagram of a drying device for uniform drying proposed in this utility model;
[0035] Figure 3 This is a partial three-dimensional structural diagram of a drying device for uniform drying proposed in this utility model;
[0036] Figure 4 This is a schematic diagram of part A in a uniform drying device proposed in this utility model;
[0037] Figure 5 This is a cross-sectional structural diagram of the hollow shaft, through hole, and inner mesh cylinder proposed in this utility model.
[0038] In the diagram, 1. Drying cylinder; 11. Support ring; 12. Support leg; 2. Feed pipe; 21. Feed hopper; 3. Discharge pipe; 4. Hollow shaft; 401. Through hole; 402. Inner mesh cylinder; 41. Spiral blade one; 42. Outer mesh cylinder; 43. Spiral blade two; 44. Scraper; 5. Motor; 51. Bevel gear one; 52. Bevel gear two; 6. Hot and cold air blower; 61. Conveying pipe; 62. Return pipe; 621. Dehumidification box; 63. Circular pipe; 64. Branch pipe; 65. Filter plate. Detailed Implementation
[0039] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0040] Reference Figures 1-5A uniform drying device includes a drying cylinder 1, a hot and cold air fan 6, a conveying pipe 61, a hollow shaft 4, a feed pipe 2, and a discharge pipe 3. The hollow shaft 4 is rotatably installed inside the drying cylinder 1 and has multiple through holes 401. The feed pipe 2 is fixedly installed at the bottom of the drying cylinder 1, and the discharge pipe 3 is fixedly installed at the bottom outer side of the drying cylinder 1 and communicates with the drying cylinder 1. A motor 5 is fixedly installed at the bottom of the drying cylinder 1. A bevel gear 1 51 and a bevel gear 2 52 are respectively fixedly sleeved on the output shaft of the motor 5 and the hollow shaft 4. The bevel gear 1 51 and the bevel gear 2 52 are connected to each other. The meshing mechanism provides driving force to the hollow shaft 4. A spiral blade 41 is fixedly mounted on the outer side of the hollow shaft 4. An outer mesh cylinder 42 is fixedly mounted on the side of the spiral blade 41 away from the hollow shaft 4. A spiral blade 43 is fixedly mounted on the outer side of the outer mesh cylinder 42. The spiral blade 43 contacts the inner wall of the drying cylinder 1, and the spiral directions of the spiral blades 41 and 43 are opposite. This allows for the conveying of the material to be dried as the hollow shaft 4 rotates. Simultaneously, it enables control of the spiral blades 43 and 41 to respectively convey the material upwards and downwards. The material is conveyed downwards. An I-shaped scraper 44 is fixedly installed on the bottom side of the spiral blade 41. The bottom side of the scraper 44 contacts the inner wall of the bottom of the drying cylinder 1. As the spiral blade 41 moves with the hollow shaft 4, it scrapes the material on the inner wall of the bottom of the drying cylinder 1, facilitating the discharge of the dried material through the discharge pipe 3. A hot and cold air blower 6 is fixedly installed at the bottom of the drying cylinder 1. A conveying pipe 61, which is rotatably and sealingly connected to the bottom end of the hollow shaft 4, is fixedly installed at the outlet of the hot and cold air blower 6. A return pipe 62 is connected to the inlet of the hot and cold air blower 6. The top of the drying cylinder 1... The unit is fixedly installed with multiple branch pipes 64 connected to the drying cylinder 1. The top of the multiple branch pipes 64 is fixedly installed with the same annular pipe 63. The top of the return pipe 62 is connected to the annular pipe 63. It can draw air with a certain temperature after the material is dried from the top position in the drying cylinder 1 and return it to the air inlet of the hot and cold air fan 6 for reuse, thereby achieving heat recovery and utilization. The return pipe 62 passes through the dehumidification box 621 and is connected to the dehumidification box 621, and can perform dehumidification operation on the air with a certain amount of heat drawn from the drying cylinder 1.
[0041] Specifically, to prevent material from being sucked into the branch pipes 64, a filter plate 65 is fixedly installed on the top inner wall of the drying cylinder 1, and the bottom ends of the multiple branch pipes 64 are all located above the filter plate 65.
[0042] Specifically, in order to provide stable support for the drying cylinder 1, the feed pipe 2, the discharge pipe 3, and the return pipe 62, a support ring 11 is fixedly installed on the outside of the drying cylinder 1, and multiple support legs 12 are fixedly installed on the bottom side of the support ring 11. The feed pipe 2, the discharge pipe 3, and the return pipe 62 are all fixedly connected to the corresponding support legs 12.
[0043] Specifically, in order to facilitate the addition of the material to be dried into the drying cylinder 1 through the feed pipe 2, a feed hopper 21 is fixedly installed at the bottom end of the feed pipe 2.
[0044] Specifically, in order to prevent materials from entering the hollow shaft 4 through the through hole 401 during the drying and conveying process, an inner mesh cylinder 402 is fixedly installed on the inner wall of the hollow shaft 4.
[0045] The circuits, heating and cooling fans, motors, and dehumidifying filter media filled in the dehumidifying box all employ existing technologies, which can be fully implemented by those skilled in the art and need not be elaborated upon. The content protected by this application does not involve any improvement to the software, circuits, or methods.
[0046] Working principle: First, the power is turned on and the motor 5 and the hot and cold air fan 6 are started. Then, the material to be dried is conveyed to the position of the spiral blade 43 inside the drying cylinder 1 through the feed hopper 21 and the feed pipe 2. As the motor 5 works, the hollow shaft 4 can be rotated through the bevel gear 51 and the bevel gear 52, thereby controlling the coaxial rotation of the recording studio 1, the outer mesh cylinder 42, and the spiral blade 43. The spiral blade 43 then conveys the material near the inner wall of the drying cylinder 1 upwards. Since the spiral directions of the spiral blades 41 and 43 are opposite, the material enters the position of the spiral blade 41 after being conveyed to the highest point, and then is conveyed downwards under the action of the spiral blade 41. During the material conveying process, the hot and cold air fan 6 delivers hot air into the hollow shaft 4 through the conveying pipe 61 and through the air supply pipe 62. The hot air is blown through multiple through holes 401 onto the material being conveyed. Since an outer mesh cylinder 42 is fixed between the first spiral blade 41 and the second spiral blade 43, the material on the first spiral blade 41 and the second spiral blade 43 can be separated without affecting the passage of hot air, thus achieving efficient and uniform material drying. As the first spiral blade 41 moves, it can drive the scraper 44 to scrape the material that has been dried at the bottom inner wall of the drying cylinder 1, so that it can be discharged through the discharge pipe 3. At the same time, when the hot and cold air blower 6 is working, it draws hot air from the top of the drying cylinder 1 through the cooperation of the return pipe 62, the annular pipe 63 and the branch pipe 64 and reuses it. This hot air will be dehumidified in the dehumidification box 621 before entering the hot and cold air blower 6, thus ensuring the drying effect of the material.
[0047] The above provides a detailed description of the uniform drying apparatus provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of these embodiments are merely for the purpose of helping to understand the method and core idea of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A uniform drying drying apparatus, characterized by, The device comprises a drying cylinder (1), a cold and warm air blower (6), a conveying pipe (61), a hollow shaft (4), a driving assembly, a conveying assembly, a cleaning piece, a heat recovery assembly, a feeding pipe (2) and a discharging pipe (3). The hollow shaft (4) is rotatably installed in the drying cylinder (1), and a plurality of through holes (401) are formed in the hollow shaft (4). The feeding pipe (2) is fixedly installed at the bottom of the drying cylinder (1), the discharging pipe (3) is fixedly installed at the bottom outside of the drying cylinder (1) and is in communication with the drying cylinder (1), the driving assembly is arranged at the bottom of the drying cylinder (1) and is connected with the hollow shaft (4), the conveying assembly is arranged in the drying cylinder (1) and is connected with the hollow shaft (4), and the cleaning piece is arranged on the conveying assembly and is in contact with the inner wall of the bottom of the drying cylinder (1). The cold and warm air blower (6) is fixedly installed at the bottom of the drying cylinder (1), and the outlet of the cold and warm air blower (6) is fixedly installed with the conveying pipe (61) which is in sealing and rotating connection with the bottom end of the hollow shaft (4). The heat recovery assembly is arranged on the drying cylinder (1) and is connected with the air inlet of the cold and warm air blower (6).
2. A uniform drying drying apparatus as claimed in claim 1, characterized in that: The driving assembly comprises a motor (5), a bevel gear one (51) and a bevel gear two (52). The motor (5) is fixedly installed at the bottom of the drying cylinder (1), and the output shaft of the motor (5) and the hollow shaft (4) are respectively fixedly sleeved with the bevel gear one (51) and the bevel gear two (52). The bevel gear one (51) and the bevel gear two (52) are in engagement.
3. A uniform drying drying apparatus as claimed in claim 1, wherein: The conveying assembly comprises a spiral blade one (41), a spiral blade two (43) and an outer meshing cylinder (42). The outer side of the hollow shaft (4) is fixedly installed with the spiral blade one (41), the side, away from the hollow shaft (4), of the spiral blade one (41) is fixedly installed with the outer meshing cylinder (42), the outer side of the outer meshing cylinder (42) is fixedly installed with the spiral blade two (43), the spiral blade two (43) is in contact with the inner wall of the drying cylinder (1), and the spiral directions of the spiral blade one (41) and the spiral blade two (43) are opposite.
4. A uniform drying drying apparatus as claimed in claim 3, wherein: The cleaning piece is a scraper (44) arranged in a character shape. The bottom side of the spiral blade one (41) is fixedly installed with the scraper (44) arranged in a character shape. The bottom side of the scraper (44) is in contact with the inner wall of the bottom of the drying cylinder (1).
5. The uniform drying drying apparatus of claim 1, wherein: The heat recovery assembly comprises a return pipe (62), an annular pipe (63) and a plurality of branch pipes (64). The air inlet of the cold and warm air blower (6) is connected with the return pipe (62). The top of the drying cylinder (1) is fixedly installed with a plurality of branch pipes (64) in communication with the drying cylinder (1). The top ends of the plurality of branch pipes (64) are fixedly installed with the same annular pipe (63). The top end of the return pipe (62) is in communication with the annular pipe (63).
6. A uniform drying drying apparatus as claimed in claim 5, characterized in that: A filter plate (65) is fixedly installed on the inner wall of the top of the drying cylinder (1). The bottom ends of the plurality of branch pipes (64) are located above the filter plate (65).
7. A uniform drying drying apparatus as claimed in claim 5, wherein: The heat recovery assembly further comprises a dehumidification box (621) filled with dehumidification filter material. The return pipe (62) penetrates through the dehumidification box (621) and keeps in communication with the dehumidification box (621).
8. A uniform drying drying apparatus as claimed in claim 5, wherein: The outer side of the drying cylinder (1) is fixedly provided with a supporting ring (11), and the bottom side of the supporting ring (11) is fixedly provided with a plurality of supporting legs (12); the feeding pipe (2), the discharging pipe (3) and the reflux pipe (62) are fixedly connected with corresponding supporting legs (12).
9. The uniform drying drying apparatus of claim 1, wherein: The bottom end of the feeding pipe (2) is fixedly provided with a feeding hopper (21).
10. The uniform drying drying apparatus of claim 1, wherein: The inner wall of the hollow shaft (4) is fixedly provided with an inner mesh cylinder (402).