Hot air circulating oven

Abstract

The utility model provides a hot air circulating oven, which relates to the technical field of drying devices, comprises a heat preservation box body, and a cabinet door is connected to the front side of the heat preservation box body through a hinge, and is characterized in that drying mechanisms are mounted at the top and the bottom of the heat preservation box body, and each drying mechanism comprises a loading shell; the loading shell is installed at the top and the bottom of the heat preservation box body, a fan a is installed at the top in the loading shell, a heating metal wire is installed below the fan a and located in the loading shell, and a ventilation filter screen corresponding to the fan a is installed below the heating metal wire and located in the loading shell; an air guide assembly is installed on the portion, located below the ventilation filter screen, of the heat preservation box body, meanwhile, uniform hot air circulation is formed in the heat preservation box body, the drying speed of the materials is increased, and meanwhile the materials are dried more uniformly.

Description

Technical Field

[0001] This utility model relates to the field of drying equipment technology, and in particular to a hot air circulating drying oven. Background Technology

[0002] Hot air circulating ovens are widely used in various fields of daily life as a drying equipment. They are commonly used in industries such as pharmaceuticals, chemicals, food, agricultural and sideline products, aquatic products, and light industry for heating, curing, drying, and dehydration of materials. Existing hot air circulating ovens generally need to dry a large amount of materials, so many layers of trays are installed inside the oven to load the materials to be dried. Since the materials at the top are closer to the hot air vents and the materials at the bottom are farther away, it is easy for the materials in the upper and lower layers to dry to different degrees at the same time, making it difficult to control the drying time and resulting in uneven drying. Therefore, we propose a hot air circulating oven. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies. Existing hot air circulating ovens generally need to dry a large amount of material, so many layers of trays are installed inside the oven to hold the material to be dried. Since the material at the top is closer to the hot air vent and the material at the bottom is farther away from the hot air vent, it is easy for the material in the upper and lower layers to dry to different degrees at the same time, making it difficult to control the drying time and resulting in uneven drying.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A hot air circulating oven includes an insulated box body, with a cabinet door connected to the front hinge of the insulated box body, characterized in that: a drying mechanism is installed at the top and bottom of the insulated box body;

[0006] The drying mechanism includes a loading shell, which is installed at the top and bottom of the insulated box. A fan a is installed at the top inside the loading shell. A heating wire is installed below the fan a inside the loading shell. A ventilation filter is installed below the heating wire inside the loading shell corresponding to the fan a. An air guide assembly is installed below the ventilation filter inside the insulated box.

[0007] Furthermore, the air guiding assembly includes a heat guiding plate, which is installed at the upper and lower ends of the insulation box. Ventilation holes are provided at both ends of the heat guiding plate. Air guiding chambers are provided at both ends of the middle chamber below the ventilation holes. An isolation net is installed on the side of the air guiding chamber facing the insulation box.

[0008] Furthermore, the heat-conducting plate divides the space inside the insulation box into three chambers: the upper and lower chambers are air storage chambers, and the middle chamber is the drying area.

[0009] Furthermore, an air guide plate is installed in the middle of the drying area inside the insulation box. The air guide plate extends through the air guide cavity to the outside of the insulation box, dividing the air guide cavity into an upper air guide cavity and a lower air guide cavity. L-shaped air outlets are installed at both ends of the air guide plate outside the insulation box.

[0010] Furthermore, air outlet holes are provided on both sides of the air guide plate within the drying area, and fans b are installed at both ends inside the air guide plate.

[0011] Furthermore, tray guide rails are installed on both sides of the insulation box, located on the side walls at both ends of the isolation net, and the tray guide rails are installed at the upper and lower ends of the air guide plate respectively.

[0012] Furthermore, lifting columns are installed at the four corners of the bottom of the insulated box, and stable bases are installed at the bottom of the lifting columns.

[0013] Furthermore, an observation window is installed on the side of the cabinet door facing the outside of the insulated box.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Fan A draws in outside air into the loading chamber, while heating wires heat the air. The air then passes through a ventilation filter into the air storage chamber, then through ventilation holes into the air guide chamber, and finally through a mesh screen onto the material to be dried on the tray. Finally, the air enters the air guide plate through the exhaust vent, and fan B is activated to discharge the hot air from the L-shaped exhaust port. This creates a uniform hot air circulation within the insulated chamber, accelerating the drying rate of the material and ensuring more even drying. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of a hot air circulating oven provided by this utility model;

[0017] Figure 2 A schematic diagram of the drying mechanism of a hot air circulating oven provided by this utility model;

[0018] Figure 3 A schematic diagram of the internal structure of the insulated box of a hot air circulating oven provided by this utility model;

[0019] Figure 4 A schematic diagram of the internal structure of the air guide plate of a hot air circulating oven provided by this utility model.

[0020] Legend: 1. Insulated box; 2. Cabinet door; 3. Drying mechanism; 4. Air guide plate; 5. L-shaped air outlet; 6. Air outlet hole; 7. Fan b; 8. Tray guide rail; 9. Lifting column; 10. Stable base; 11. Observation window; 31. Carrier shell; 32. Fan a; 33. Heating wire; 34. Ventilation filter; 35. Air guide assembly; 351. Heat conduction plate; 352. Ventilation hole; 353. Air guide cavity; 354. Isolation net. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0022] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0024] Unless otherwise defined, 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 limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Example 1

[0025] like Figure 1-4 As shown, this utility model provides a technical solution: a hot air circulating oven, including an insulated box body 1 for loading drying equipment, a cabinet door 2 connected to the front hinge of the insulated box body 1, the cabinet door 2 effectively seals the internal space of the insulated box body 1 to ensure that the internal temperature does not get out, and a drying mechanism 3 is installed on the top and bottom of the insulated box body 1 for uniformly drying the material to be dried.

[0026] The drying mechanism 3 includes a loading shell 31, which is installed at the top and bottom of the insulated box 1. A fan a32 is installed at the top inside the loading shell 31. A protective mesh cover is installed on the top of the shell 31 corresponding to the fan a32 to protect the fan a32 and prevent foreign objects from entering and damaging it. A heating wire 33 is installed below the fan a32 inside the loading shell 31 to heat the air drawn into the loading shell 31 by the fan a32, forming a hot airflow. A ventilation filter 34 is installed below the heating wire 33 inside the loading shell 31 corresponding to the fan a32 to filter out impurities in the drawn-in air and prevent them from entering the insulated box 1 and affecting the quality of the dried material. An air guide assembly 35 is installed below the ventilation filter 34 inside the insulated box 1 to guide the hot air into the interior of the insulated box 1 for drying the material to be dried. Example 2

[0027] like Figure 1-4 As shown, the air guiding assembly 35 includes a heat-conducting plate 351, which is installed at the upper and lower ends inside the insulation box 1. The heat-conducting plate 351 divides the space inside the insulation box 1 into three chambers. The upper and lower chambers are air storage chambers, and the middle chamber is the drying area. Ventilation holes 352 are provided at both ends of the heat-conducting plate 351. Hot air will enter the air guiding chamber 353 through the ventilation holes 352. The air guiding chamber 353 is located at both ends of the middle chamber below the ventilation holes 352. An isolation net 354 is installed on the side of the air guiding chamber 353 facing the inside of the insulation box 1. The air guiding chamber 353 will guide the hot air to all corners inside the insulation box 1 to dry the material in all directions.

[0028] An air guide plate 4 is installed in the middle of the drying area inside the insulated box 1. The air guide plate 4 extends through the air guide cavity 353 to the outside of the insulated box 1, dividing the air guide cavity 353 into an upper air guide cavity 353 and a lower air guide cavity 353. L-shaped air outlets 5 are installed at both ends of the air guide plate 4 outside the insulated box 1. Air outlet holes 6 are opened on both sides of the air guide plate 4 within the drying area. Fans b7 are installed at both ends inside the air guide plate 4. When the fans b7 operate, they draw hot air from inside the insulated box into the air guide plate 4 through the air outlet holes 6, and then discharge it into the insulated box 1 through the L-shaped air outlets 5, forming a hot air circulation inside the insulated box 1, which accelerates the drying rate of the materials inside.

[0029] Tray rails 8 are installed on both sides of the inner side wall of the insulation box 1, located at both ends of the isolation net 354. The tray rails 8 are installed at the upper and lower ends of the air guide plate 4 respectively. The tray rails 8 are used to place the material tray and push the material into the insulation box 1 through the material tray. Lifting columns 9 are installed at the four corners of the bottom of the insulation box 1 to raise the bottom of the insulation box 1, which is convenient for installing the bottom drying mechanism 3. A stable base 10 is installed at the bottom of the lifting column 9 to improve the stability of the entire device. An observation window 11 is installed on the side of the cabinet door 2 facing the outside of the insulation box 1 for real-time observation of the drying status of the material inside.

[0030] The working process of this utility model is as follows: When using a hot air circulating oven, first open the cabinet door 2 using the handle on the door 2, place the material to be dried on the drying tray, and send it into the insulated box 1 through the tray guide rail 8. Then close the cabinet door 2 to keep the internal space of the box closed, and start the fan a32. The fan a32 draws outside air into the loading shell 31, and at the same time, the heating wire 33 heats the drawn air. The air enters the air storage chamber through the ventilation filter 34, then enters the air guide chamber 353 through the ventilation hole 352, and finally passes through the isolation net 354 to the material to be dried on the tray. Finally, it enters the air guide plate 4 through the air outlet 6. At the same time, the fan b is started to discharge the hot air from the L-shaped air outlet, forming a uniform hot air circulation in the insulated box 1, drying the material from all directions and accelerating the drying rate. After the material is dried, pull out the tray and take out the dried material to complete the drying task.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot air circulating oven, comprising an insulated box body (1), wherein a cabinet door (2) is connected to the front hinge of the insulated box body (1), characterized in that: The top and bottom of the insulated box (1) are equipped with drying mechanisms (3); The drying mechanism (3) includes a loading shell (31), which is installed at the top and bottom of the heat preservation box (1). A fan a (32) is installed at the top inside the loading shell (31). A heating wire (33) is installed below the fan a (32) inside the loading shell (31). A ventilation filter (34) is installed below the heating wire (33) inside the loading shell (31) corresponding to the fan a (32). A wind guide assembly (35) is installed below the ventilation filter (34) inside the heat preservation box (1).

2. The hot air circulating oven according to claim 1, characterized in that: The air guide assembly (35) includes a heat-conducting plate (351), which is installed at the upper and lower ends inside the heat-insulating box (1). Ventilation holes (352) are provided at both ends of the heat-conducting plate (351). Air guide chambers (353) are provided at both ends of the middle chamber below the ventilation holes (352). An isolation net (354) is installed on the side of the air guide chamber (353) facing the inside of the heat-insulating box (1).

3. A hot air circulating oven according to claim 2, characterized in that: The heat-conducting plate (351) divides the space inside the heat-insulating box (1) into three chambers: the upper and lower chambers are air storage chambers, and the middle chamber is the drying area.

4. A hot air circulating oven according to claim 3, characterized in that: An air guide plate (4) is installed in the middle of the drying area inside the heat preservation box (1). The air guide plate (4) extends through the air guide cavity (353) to the outside of the heat preservation box (1), dividing the air guide cavity (353) into an upper air guide cavity and a lower air guide cavity. L-shaped air outlets (5) are installed at both ends of the air guide plate (4) outside the heat preservation box (1).

5. A hot air circulating oven according to claim 4, characterized in that: The air guide plate (4) has air outlet holes (6) on both sides in the drying area, and fans b (7) are installed at both ends inside the air guide plate (4).

6. A hot air circulating oven according to claim 1, characterized in that: The heat preservation box (1) has tray rails (8) installed on the side walls of the isolation net (354) on both sides. The tray rails (8) are installed at the upper and lower ends of the air guide plate (4).

7. A hot air circulating oven according to claim 1, characterized in that: Lifting columns (9) are installed at the four corners of the bottom of the insulated box (1), and a stable base (10) is installed at the bottom of the lifting column (9).

8. A hot air circulating oven according to claim 1, characterized in that: The cabinet door (2) has an observation window (11) installed on the side facing the outside of the insulated box (1).

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