Microwave drying machine with material turning device

Abstract

The microwave drying machine comprises a drying chamber, a conveying belt, a rotating shaft and rake teeth, the conveying belt penetrates through the drying chamber, the rotating shaft is transversely arranged on the conveying belt, three rows of rake teeth are arranged on the rotating shaft in a radial mode, each row of rake teeth is arranged in the length direction of the rotating shaft, and the rake teeth are arranged in the drying chamber. And the angles formed between two adjacent rows of rake teeth are the same. When one row of rake teeth pushes away the materials, gaps between the materials are created, so that water at the bottom can be exposed to microwaves and is rapidly evaporated, the rear row of rake teeth act again to push the following materials to the position where the materials are just pushed away, and the materials are turned over and covered again. The circulating and repeated process not only ensures that the materials are uniformly irradiated by microwaves, but also ensures that moisture on the conveying belt is comprehensively evaporated, so that the drying efficiency is greatly improved, and the problem of non-uniform drying caused by the fact that the materials at the bottom cannot be turned over in a traditional tunnel type microwave drying machine is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of dryer equipment, and particularly relates to a microwave dryer with a material turning device. Background Art

[0002] In the field of microwave drying technology, tunnel microwave dryers are widely used in the drying process of various materials. This equipment uses microwave energy to directly act on the water molecules inside the material, generating heat to evaporate the water, so as to achieve the effect of rapid drying. However, traditional tunnel microwave dryers have certain limitations, especially in terms of material turning. Most traditional tunnel microwave dryers lack an effective material turning device, or the designed turning device cannot fully turn the materials in the drying chamber, especially for the materials stacked at the bottom of the drying chamber. Due to these materials being in long-term contact with the bottom of the drying chamber, lacking sufficient turning and ventilation, it is difficult for their moisture to be effectively evaporated. As a result, the bottom materials show the phenomena of not being dry or sticking to the bottom, affecting the drying quality and efficiency, and may lead to waste of products and difficulties in subsequent processing.

[0003] It can be seen that the existing technology still needs to be improved. Summary of the Utility Model

[0004] In view of the deficiencies of the above-mentioned existing technology, the purpose of the utility model is to provide a microwave dryer with a material turning device, which is used to solve the problem of difficult material turning in the existing dryer.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions: A microwave dryer with a material turning device includes a drying chamber, a conveyor belt, a rotating shaft and rake teeth: The conveyor belt runs through the drying chamber, the rotating shaft is horizontally arranged on the conveyor belt, three rows of rake teeth are radially arranged on the rotating shaft, and each row of rake teeth is arranged along the length direction of the rotating shaft, and the angle formed between adjacent two rows of rake teeth is the same.

[0006] In an embodiment of the utility model, a controller is further included, and the controller is fixed on the front side of the drying chamber.

[0007] The beneficial effect of the above embodiment is that through the controller fixed on the front side of the drying chamber, the operator can more conveniently adjust the working parameters of the machine, such as microwave power, conveyor belt speed and turning frequency, etc., to meet the drying requirements of different materials.

[0008] In an embodiment of the utility model, the drying chamber includes a drying platform, a machine cover and heat dissipation holes, the machine cover is covered on the drying platform, and the heat dissipation holes are opened on the side wall of the machine cover.

[0009] The beneficial effects of the above embodiments are as follows: The drying platform and the heat dissipation holes on the hood provide good heat dissipation performance for the microwave dryer, which not only protects the internal microwave emission components and the conveyor belt, but also allows the hot air to be discharged in time through the heat dissipation holes, thus maintaining the normal operating temperature of the equipment.

[0010] In an embodiment of the present invention, it further includes a heat dissipation fan fixed to the inner side of the hood, and the heat dissipation fan is located below the heat dissipation holes.

[0011] The beneficial effects of the above embodiments are as follows: The heat dissipation fan fixed to the inner side of the hood is located below the heat dissipation holes, which can force convective heat transfer, accelerate the discharge of heat, further reduce the equipment failures that may be caused by high temperature, and ensure the performance stability and safety during continuous operation.

[0012] In an embodiment of the present invention, it further includes a main frame and adjusting feet pads. The drying chamber is fixed on the main frame, and the adjusting feet pads are fixedly connected to the main frame by threads.

[0013] The beneficial effects of the above embodiments are as follows: The adjusting feet pads are threadedly connected to the main frame. During installation, the levelness can be adjusted to eliminate the influence caused by uneven ground. At the same time, the stability of the equipment is increased, the vibration during operation is reduced, which is beneficial to maintaining the long-term accurate operation of the equipment.

[0014] As described above, the microwave dryer with a material turning device of the present invention has the following beneficial effects: When one row of rake teeth pushes the material away, gaps are created between the materials, so that the moisture at the bottom can be exposed to the microwave and evaporate quickly. The rear rake teeth act again to push the materials behind to the position of the just-pushed materials, realizing the re-turning and covering of the materials. The repeated process not only ensures that the materials are evenly irradiated by the microwave, but also ensures that the moisture on the conveyor belt is fully evaporated, greatly improving the drying efficiency and solving the problem of uneven drying caused by the inability to turn the bottom materials in the traditional tunnel-type microwave dryer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 It is a schematic structural diagram of the microwave dryer with a material turning device provided by the present invention;

[0017] Figure 2Partial structural schematic diagram of the microwave dryer with a material turnover device provided by the present utility model;

[0018] Figure 3 Another structural schematic diagram of the microwave dryer with a material turnover device provided by the present utility model.

[0019] Explanation of component numbers

[0020] 1 Drying chamber 6 Machine cover

[0021] 2 Conveyor belt 7 Heat dissipation holes

[0022] 3 Rotating shaft 8 Main frame

[0023] 4 Rake teeth 9 Adjusting foot pads

[0024] 5 Controller Specific implementation manner

[0025] The present utility model provides a microwave dryer with a material turnover device. To make the purpose, technical solution and effects of the present utility model clearer and more definite, the following takes examples with reference to the accompanying drawings and further elaborates on the present utility model in detail.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "up and down, left and right" is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, and cannot be construed as a limitation to the present utility model; in addition, terms such as "installation" and "connection" should be understood in a broad sense. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0027] Please refer to Figures 1 to 3 , the present utility model provides a microwave dryer with a material turnover device, including a drying chamber 1, a conveyor belt 2, a rotating shaft 3 and rake teeth 4. The conveyor belt 2 runs through the entire drying chamber 1, and the rotating shaft 3 is arranged across the conveyor belt 2. There are three groups of rake teeth 4 radially distributed on the rotating shaft 3. Each group of rake teeth 4 is arranged along the length direction of the rotating shaft 3, and the angle between adjacent two groups of rake teeth 4 is kept consistent.

[0028] It can be understood that when one row of rake teeth 4 pushes the material away, creating gaps between the materials, so that the moisture at the bottom can be exposed to the microwave and quickly evaporate. The rear row of rake teeth 4 acts again, pushing the materials behind to the position where the materials were just pushed away, realizing the re-turning and covering of the materials. The repeated process not only ensures that the materials are evenly irradiated by the microwave.

[0029] In this embodiment, there is also a controller 5 which is fixed to the front side of the drying chamber 1. The significant advantage is that the operator can more conveniently adjust the operating parameters of the device, such as microwave power, the speed of the conveyor belt 2, and the frequency of material turning, etc., through the controller 5 located on the front side of the drying chamber 1 to meet the drying requirements of different materials.

[0030] Optionally, the drying chamber 1 is composed of a drying platform, a hood 6, and heat dissipation holes 7. The hood 6 covers the drying platform, and heat dissipation holes 7 are provided on the side of the hood 6. The benefit is that the drying platform and the heat dissipation holes 7 on the hood 6 together provide excellent heat dissipation capacity for the microwave dryer, which not only protects the internal microwave emitting components and the conveyor belt 2, but also allows the hot air to be discharged in time through the heat dissipation holes 7 to maintain the normal operating temperature of the device.

[0031] Furthermore, a heat dissipation fan is fixed inside the hood 6 and is located below the heat dissipation holes 7. The heat dissipation fan can force convective heat transfer to accelerate heat emission, thereby reducing the risk of equipment failure caused by high temperature, ensuring the performance stability and safety during continuous operation.

[0032] Please refer to Figure 3 , it also includes a main frame 8 and adjusting feet 9. The drying chamber 1 is fixed on the main frame 8, and the adjusting feet 9 are connected to the main frame 8 by threads, so that the levelness of the device can be adjusted during installation, eliminating the adverse effects caused by uneven ground, enhancing the stability of the device at the same time, reducing the vibration during operation, and being beneficial to maintaining the long-term accurate operation of the device.

[0033] In summary, for the microwave dryer with a material turner of the present utility model, when one row of rake teeth 4 pushes the material away, creating gaps between the materials, so that the moisture at the bottom can be exposed to the microwave and evaporate quickly. Then the rear row of rake teeth 4 acts again to push the material behind to the position of the just-pushed material, realizing the re-turning and covering of the material. This cyclic process not only ensures that the material is evenly irradiated by the microwave, but also ensures that the moisture on the conveyor belt 2 is fully evaporated, greatly improving the drying efficiency and solving the problem of uneven drying caused by the inability to turn the bottom material in the traditional tunnel-type microwave dryer. Therefore, the present utility model effectively overcomes various disadvantages in the prior art and has high industrial utilization value.

[0034] It can be understood that for those of ordinary skill in the art, equivalent substitutions or changes can be made according to the technical solution and the inventive concept of the present utility model, and all such changes or substitutions should fall within the protection scope of the present utility model.

Claims

1. A microwave dryer with a material turner, characterized in that: It includes a drying chamber, a conveyor belt, a rotating shaft and rake teeth: the conveyor belt runs through the drying chamber, the rotating shaft is horizontally arranged on the conveyor belt, three rows of rake teeth are radially arranged on the rotating shaft, each row of rake teeth is arranged along the length direction of the rotating shaft, and the angles between two adjacent rows of rake teeth are the same.

2. The microwave dryer with a material turner according to claim 1, characterized in that: The device also includes a controller, which is fixed to the front side of the drying chamber.

3. The microwave dryer with a material turner according to claim 1, characterized in that: The drying chamber comprises a drying platform, a machine cover and heat dissipation holes. The machine cover is arranged on the drying platform, and the heat dissipation holes are opened on the side wall of the machine cover.

4. The microwave dryer with a material turner according to claim 3, characterized in that: It also includes a heat dissipation fan fixed on the inner side of the hood, and the heat dissipation fan is located below the heat dissipation hole.

5. The microwave dryer with a material turner according to claim 1, characterized in that: It also includes a main frame and an adjusting foot pad, the drying chamber is fixed on the main frame, and the adjusting foot pad is threadedly connected and fixed to the main frame.

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