Hot air circulating oven with filtering structure

Abstract

The utility model relates to the field of hot air circulating ovens, in particular to a hot air circulating oven with a filter structure, which comprises a hot air circulating oven body, an exhaust pipe arranged on the top of the hot air circulating oven body, and a filter box body arranged on one side of the exhaust pipe on the top of the hot air circulating oven body. The filtering box body and the exhaust pipe are connected through a connecting pipe, and a first filtering assembly and a second filtering assembly are obliquely inserted into the filtering box body at equal intervals. According to the utility model, dust and particulate matters in the gas discharged by the thermal cycle oven are intercepted through the first filter assembly and the second filter assembly which are arranged in an inclined manner and are detachable, and meanwhile, the particulate matters or dust automatically slide into the first collection frame body and the second collection frame body to be collected in a centralized manner by utilizing gravity, so that the blockage phenomenon is reduced; and after the filter is used for a period of time, the first filter assembly and the second filter assembly can be detached to be cleaned or replaced.

Description

Technical Field

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

[0002] A hot air circulating oven is a device that utilizes hot air circulation to achieve efficient and uniform drying. Its working principle primarily relies on a fan-driven circulating air supply system. An electric heater inside the oven converts electrical energy into heat energy, heating the air to form hot air. Then, the fan starts, driving the impeller to rotate and evenly deliver the heated air into the oven chamber through the air ducts, where it exchanges heat with the material to be dried. After absorbing heat, the moisture inside the material begins to evaporate and is discharged from the oven with the hot air. Simultaneously, the used air is drawn back into the air ducts by the fan, reheated by the heater, and then continues to circulate.

[0003] Most existing hot air circulating ovens do not have filter components at the exhaust port. However, some hot air circulating ovens dry powdery and granular materials. During the drying process, the materials are easily broken into fine dust by the hot air and discharged directly into the external environment along the exhaust port, which can easily cause pollution. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a hot air circulating oven with a filtration structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A hot air circulating oven with a filtration structure includes a hot air circulating oven body, an exhaust pipe at the top of the hot air circulating oven body, a filter box at the top of the hot air circulating oven body on one side of the exhaust pipe, the filter box and the exhaust pipe being connected by a connecting pipe, a first filter assembly and a second filter assembly being inserted at equal intervals and inclined inside the filter box, and a first collection frame and a second collection frame being inserted at the bottom of the filter box between the connecting pipe and the first filter assembly, and between the first filter assembly and the second filter assembly, respectively.

[0007] In addition, a preferred structure is that a first sliding groove is provided on one side of the hot air circulating oven body at both the first filter component and the second filter component, and a limiting sealing plate is inserted into the first sliding groove, and a limiting insert is inserted into the hot air circulating oven body on the side of the limiting sealing plate.

[0008] In addition, a preferred structure is that a second sliding groove is provided on the other side of the hot air circulating oven body at the first collection frame and the second collection frame, and a sealing plug is inserted into the second sliding groove on the other side of the hot air circulating oven body.

[0009] Furthermore, in a preferred configuration, the first filter assembly and the second filter assembly each include a fixed frame, with a first filter body placed inside the fixed frame of the first filter assembly and a second filter body placed inside the fixed frame of the second filter assembly.

[0010] In addition, in a preferred structure, the top of the fixed frame is provided with a third sliding groove at both the second filter body and the first filter body, and a sealing block is inserted into the third sliding groove of the fixed frame, and auxiliary grooves are provided in the middle of both sides of the top of the fixed frame.

[0011] Furthermore, in a preferred configuration, the angle between the first filter assembly, the second filter assembly, and the bottom of the filter housing is 60°.

[0012] In addition, a preferred structure is that a slot is provided in the filter box at the limiting insert plate.

[0013] The beneficial effects of this utility model are as follows:

[0014] In this invention, the detachable first and second filter components are tilted to intercept dust and particulate matter in the gas discharged from the hot circulating oven. At the same time, gravity allows the particulate matter or dust to automatically slide into the first and second collection frames for centralized collection, reducing clogging. After a period of use, the first and second filter components can be disassembled for cleaning or replacement. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a hot air circulating oven with a filtration structure proposed in this utility model;

[0016] Figure 2 A structural diagram showing the disassembled filter housing, first filter assembly, second filter assembly, limiting sealing plate, and limiting insert plate;

[0017] Figure 3 This is a structural schematic diagram showing the cross-sections of the filter housing, the first filter assembly, and the second filter assembly.

[0018] In the figure: 1. Hot air circulating oven body; 11. Exhaust pipe; 2. Connecting pipe; 3. Filter box; 4. Limiting sealing plate; 5. Limiting insert plate; 6-1. First filter assembly; 6-2. Second filter assembly; 7-1. First collection frame; 7-2. Second collection frame; 8. Sealing plug. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-3 A hot air circulating oven with a filtration structure includes a hot air circulating oven body 1, an exhaust pipe 11 on the top of the hot air circulating oven body 1, a filter box 3 on the top of the hot air circulating oven body 1 located on one side of the exhaust pipe 11, the filter box 3 and the exhaust pipe 11 being connected by a connecting pipe 2, a first filter component 6-1 and a second filter component 6-2 being inserted at equal intervals and inclined inside the filter box 3, and a first collection frame 7-1 and a second collection frame 7-2 being inserted at the bottom of the filter box 3 between the connecting pipe, the first filter component 6-1, and between the first filter component 6-1 and the second filter component 6-2, respectively. The specific structure, connection method and working principle of the hot air circulating oven body 1 are all existing technologies that are currently publicly available on the market and are not the main technical problems to be solved in this utility model. Therefore, this utility model will not elaborate further.

[0021] Furthermore, a first sliding groove is provided on one side of the hot air circulating oven body 1 at the first filter assembly 6-1 and the second filter assembly 6-2, and a limiting sealing plate 4 is inserted into the first sliding groove. A limiting insert plate 5 is inserted into the hot air circulating oven body 1 on one side of the limiting sealing plate 4.

[0022] Meanwhile, a second sliding groove is provided on the other side of the hot air circulating oven body 1 at the first collection frame 7-1 and the second collection frame 7-2, and a sealing plug 8 is inserted into the second sliding groove on the other side of the hot air circulating oven body 1.

[0023] Furthermore, the first filter assembly 6-1 and the second filter assembly 6-2 include a fixed frame. The first filter body is placed in the fixed frame of the first filter assembly 6-1, and the second filter body is placed in the fixed frame of the second filter assembly 6-2. The diameter of the filter mesh of the first filter body is larger than the diameter of the mesh of the second filter body. The specific structure of the first filter body and the second filter body is the existing technology that has been disclosed in the market and is not the main technical problem to be solved in this utility model. Therefore, it will not be described in detail in this utility model.

[0024] Furthermore, a third sliding groove is provided at the top of the fixed frame at both the second filter body and the first filter body, and a sealing block is inserted into the third sliding groove of the fixed frame. An auxiliary groove is provided at the middle of both sides of the top of the fixed frame.

[0025] Furthermore, the angle between the first filter assembly 6-1, the second filter assembly 6-2 and the bottom of the filter box is 60°.

[0026] Meanwhile, a slot is provided inside the filter box 3 at the limiting insert plate 5, and an exhaust port is provided on the side of the filter box 3 away from the connecting pipe. Through the setting of the limiting sealing plate 4 and the sealing plug 8, the sealing performance of the first filter assembly 6-1, the second filter assembly 6-2, the first collection frame 7-1, and the second collection frame 7-2 after installation is ensured, and gas is prevented from being discharged from the first slide groove and the second slide groove.

[0027] In this embodiment, the present invention uses a tilted arrangement of detachable first filter assembly 6-1 and second filter assembly 6-2 to intercept dust and particulate matter in the gas discharged from the hot circulating oven. At the same time, gravity is used to allow the particulate matter or dust to automatically slide into the first collection frame 7-1 and second collection frame 7-2 for centralized collection, reducing clogging. After a period of use, the first filter assembly 6-1 and second filter assembly 6-2 can be disassembled for cleaning or replacement.

[0028] When it is necessary to disassemble, clean or replace the first filter assembly 6-1 and the second filter assembly 6-2, remove the limiting insert plate 5 and the limiting sealing plate 4, then the first filter assembly 6-1 and the second filter assembly 6-2 can be removed. After removing the sealing block, the first filter body and the second filter body can be removed for cleaning or replacement.

[0029] Meanwhile, by removing the sealing plug 8, the first collection frame 7-1 and the second collection frame 7-2 can be removed and cleaned.

[0030] In this invention, the detachable first filter assembly 6-1 and second filter assembly 6-2 are tilted to intercept dust and particulate matter in the gas discharged from the hot circulating oven. At the same time, gravity allows the particulate matter or dust to automatically slide into the first collection frame 7-1 and the second collection frame 7-2 for centralized collection, reducing clogging. After a period of use, the first filter assembly 6-1 and the second filter assembly 6-2 can be disassembled for cleaning or replacement.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hot air circulating oven with a filtration structure, comprising a hot air circulating oven body (1), characterized in that, The hot air circulating oven body (1) is provided with an exhaust pipe (11) at the top. A filter box (3) is provided on the top of the hot air circulating oven body (1) on one side of the exhaust pipe (11). The filter box (3) and the exhaust pipe (11) are connected by a connecting pipe (2). The first filter assembly (6-1) and the second filter assembly (6-2) are inserted at equal distances inside the filter box (3). The first collection frame (7-1) and the second collection frame (7-2) are respectively inserted at the bottom of the filter box (3) between the connecting pipe, the first filter assembly (6-1), and between the first filter assembly (6-1) and the second filter assembly (6-2).

2. A hot air circulating oven with a filter structure according to claim 1, characterized in that, The hot air circulating oven body (1) has a first sliding groove on one side at the first filter assembly (6-1) and the second filter assembly (6-2), and a limiting sealing plate (4) is inserted into the first sliding groove. A limiting insert plate (5) is inserted into the hot air circulating oven body (1) on one side of the limiting sealing plate (4).

3. A hot air circulating oven with a filter structure according to claim 1, characterized in that, The hot air circulating oven body (1) has a second sliding groove on the other side at the first collection frame (7-1) and the second collection frame (7-2), and a sealing plug (8) is inserted into the second sliding groove on the other side of the hot air circulating oven body (1).

4. A hot air circulating oven with a filter structure according to claim 1, characterized in that, The first filter assembly (6-1) and the second filter assembly (6-2) include a fixed frame. The first filter body is placed in the fixed frame of the first filter assembly (6-1), and the second filter body is placed in the fixed frame of the second filter assembly (6-2).

5. A hot air circulating oven with a filter structure according to claim 4, characterized in that, The top of the fixed frame is provided with a third sliding groove at both the second filter body and the first filter body, and a sealing block is inserted into the third sliding groove of the fixed frame. Auxiliary grooves are provided in the middle of both sides of the top of the fixed frame.

6. A hot air circulating oven with a filter structure according to claim 1, characterized in that, The angle between the first filter assembly (6-1), the second filter assembly (6-2), and the bottom of the filter box is 60°.

7. A hot air circulating oven with a filter structure according to claim 1, characterized in that, The filter box (3) has a slot located at the limiting plate (5).

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