Double-air-system heat circulation drying oven

Abstract

The utility model relates to the field of heat circulation drying ovens, in particular to a double-air-system heat circulation drying oven which comprises a heat circulation drying oven body, an air inlet is formed in one side of the heat circulation drying oven body, one side of the air inlet is connected with a filtering box body, one side of the filtering box body is connected with a first fan, and the filtering box body comprises a fixed box body. An air inlet pipe is arranged on one side of the fixed box body, and an air outlet pipe is arranged on the other side of the fixed box body. According to the utility model, particles and powder mixed in hot air entering the first fan are filtered through the first filtering mechanism and the second filtering mechanism, so that materials brought in by circulating air are prevented from forming carbides through long-time high temperature, and the carbides are accumulated in a pipeline to cause blockage; and the first filtering mechanism and the second filtering mechanism are convenient to disassemble, clean or replace after being used for a period of time.

Description

Technical Field

[0001] This utility model relates to the field of thermal circulation oven technology, and in particular to a dual-air system thermal circulation oven. Background Technology

[0002] The outer shell of the oven is generally made of thin steel plate with a baked paint finish. The working chamber is made of high-quality structural steel plate. The space between the outer shell and the working chamber is filled with aluminum silicate fiber. The heater is installed at the bottom, but can also be placed on the top or sides. The temperature control instrument is a digital display smart meter.

[0003] The structure of the dual-air system heat circulation oven can be referenced from the authorization announcement number "CN 214307947". The utility model of "U" discloses "a dual-air system heat circulation oven". It is equipped with a first fan, a first air inlet pipe, a first air outlet pipe, and a mounting box. When in use, the first fan is activated, and the first air inlet pipe introduces hot air from the oven body into the mounting box through the first air outlet pipe. A dehumidifying plate is installed to absorb moisture from the hot air. A second fan, a second air inlet pipe, a second air outlet pipe, a diffuser pipe, and a heating wire are also included. Activating the second fan introduces air from the mounting box into the diffuser pipe through the second air inlet and outlet pipes. Then, the heating wire is energized to further heat the air, increasing the temperature inside the oven body and improving the drying effect. A handle and a sealing ring are included. The sealing ring prevents air from escaping from the mounting box, and the handle allows for easy removal and replacement of the dehumidifying plate. The entire device achieves heat circulation and moisture absorption, solving the problems of ovens lacking heat circulation and moisture absorption.

[0004] However, currently, hot air circulating ovens are widely used in the food, pharmaceutical, and chemical industries. Apart from block and strip materials, most of the materials being dried are granules and powders. During the hot air circulation process, a small amount of particles or powders are inevitably carried into the circulating air duct by the hot air. After being exposed to high temperatures for a long time, the materials carried in by the circulating air form carbon deposits that easily accumulate in the corners of the circulating air duct. Furthermore, the carbon deposits formed by the materials carried in by the circulating air after being exposed to high temperatures for a long time are carried into the new materials by the circulating air, which can easily cause cross-contamination when changing batches or varieties. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a dual-air system thermal circulation oven.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A double-wind system heat cycle oven, comprising a heat cycle oven body, one side of the heat cycle oven body is provided with an air inlet, one side of the air inlet is connected with a filter box, one side of the filter box is connected with a first fan, the filter box comprises a fixed box, one side of the fixed box is provided with an air inlet pipe, the other side of the fixed box is provided with an air outlet pipe, and two grooves are equidistantly arranged on the top of the fixed box, a first filter mechanism and a second filter mechanism are clamped on one side in the grooves, and a sealing plate and a limiting top plate are sequentially arranged in the grooves on the first filter mechanism and the second filter mechanism, a plurality of limiting mechanisms are equidistantly arranged on the top end of the fixed box, and an auxiliary limiting plug plate is inserted between the plurality of limiting mechanisms.

[0008] In addition, preferably, the first filter mechanism is internally provided with a first filter plate, and the second filter mechanism is internally provided with a second filter plate.

[0009] In addition, preferably, the limiting mechanism comprises a placing frame, a limiting pressing plate is arranged in the placing frame, a plurality of fixed screws are equidistantly arranged on the top of the limiting pressing plate, and one end of the fixed screw penetrates through the placing frame and is adapted to be connected with a fixed nut.

[0010] In addition, preferably, the first filter mechanism and the second filter mechanism each comprise a filter frame, a plurality of through holes are equidistantly arranged on the two sides of the filter frame, and a through hole is formed in the front end face of the filter frame.

[0011] In addition, preferably, a limiting groove is formed in the side of the filter frame close to the through hole, an auxiliary limiting plug plate is inserted in the limiting groove, and a clamping groove is formed below the clamping groove in the filter frame.

[0012] In addition, preferably, a limiting plate is arranged on the top of the filter frame, and a through hole is formed in the middle of the limiting plate.

[0013] In addition, preferably, a sealing ring is arranged on the outside of the bottom end of the limiting top plate, and a handle is arranged on the top end of the limiting top plate.

[0014] The beneficial effects of the present application are as follows:

[0015] In the present application, the first filter mechanism and the second filter mechanism filter the particles and powder mixed in the hot air entering the first fan, so that the carbonization of the material brought by the circulating air and accumulated in the pipeline for a long time is avoided, and the first filter mechanism and the second filter mechanism are convenient to disassemble, clean or replace after being used for a period of time. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 The present application provides a structure diagram of a double-wind system heat cycle oven.

[0017] Fig. 2 The structural schematic view of the filter box body provided by the utility model;

[0018] Fig. 3 The structural schematic view of the first filter mechanism and the second filter mechanism provided by the utility model.

[0019] In the figure: 1, thermal cycle oven body; 11, air inlet; 2, filter box body; 21, fixed box body; 22, air inlet pipe; 23, air outlet pipe; 24-1, first filter mechanism; 24-2, second filter mechanism; 241, filter frame body; 242, limiting plate; 243, limiting plug-in plate; 244, through hole; 25, sealing plate; 26, limiting top plate; 27, sealing ring pad; 28, auxiliary limiting plug-in plate; 29, placing frame body; 291, limiting pressure plate; 292, fixed screw; 3-1, first filter plate; 3-2, second filter plate; 4, dehumidifier body. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0021] Referring to Figs. 1-3 A double air system thermal cycle oven, comprising a thermal cycle oven body 1, the thermal cycle oven body 1 is provided with an air inlet 11 on one side, the air inlet 11 is connected with a filter box body 2 on one side, the filter box body 2 is connected with a No. 1 fan on one side, the filter box body 2 comprises a fixed box body 21, the fixed box body 21 is provided with an air inlet pipe 22 on one side, the fixed box body 21 is provided with an air outlet pipe 23 on the other side, and two grooves are equidistantly arranged on the top of the fixed box body 21, a first filter mechanism 24-1 and a second filter mechanism 24-2 are clamped in the grooves, and a sealing plate 25 and a limiting top plate 26 are sequentially arranged in the grooves on the first filter mechanism 24-1 and the second filter mechanism 24-2, and a plurality of limiting mechanisms are equidistantly installed on the top end of the fixed box body 21, and an auxiliary limiting plug-in plate 28 is inserted and arranged between the plurality of limiting mechanisms, wherein, it is worth noting that the specific structure, connection mode and working mode of the No. 1 fan are prior art, and do not belong to the main technical problems solved in the present technical solution, so they are not described in detail in the present technical solution.

[0022] And the input end of the first fan is connected with the filter box 2, the output end of the first fan is connected with the dehumidifier body 4, one end of the dehumidifier body 4 is connected with the transition pipeline, the other end of the transition pipeline is connected with the mounting box, and the specific structure and working principle of the heat cycle oven body 1, the air inlet 11 and the mounting box can be referred to the utility model disclosed in the authorized announcement No. "CN 214307947 U" of "a double air system heat cycle oven", so the specific structure and working mode of the dehumidifier body 4 are not described in detail.

[0023] Meanwhile, the first filter mechanism 24-1 is internally provided with the first filter plate 3-1, and the second filter mechanism 24-2 is internally provided with the second filter plate 3-2.

[0024] Meanwhile, the limiting mechanism comprises a placing frame 29, a limiting pressing plate 291 is arranged in the placing frame 29, a plurality of fixed screws 292 are installed at equal distances on the top of the limiting pressing plate 291, and one end of the fixed screw 292 penetrates through the placing frame 29 and is adaptively connected with a fixed nut.

[0025] Meanwhile, the first filter mechanism 24-1 and the second filter mechanism 24-2 both comprise a filter frame 241, a plurality of through holes are arranged at equal distances on the two sides of the filter frame 241, and a through hole is formed in the front end face of the filter frame 241.

[0026] And the side of the filter frame 241 close to the through hole is provided with a limiting slot, a limiting plug 243 is inserted into the limiting slot, and a clamping groove is formed below the clamping groove in the filter frame 241.

[0027] And the top of the filter frame 241 is provided with a limiting plate 242, and a through hole is formed in the middle of the limiting plate 242.

[0028] And the bottom end of the limiting top plate 26 is externally provided with a sealing ring 27, and the top end of the limiting top plate 26 is provided with a handle part at the limiting mechanism.

[0029] In the embodiment, the air inlet pipe 22 of the filter box 2 is connected with the air inlet 11, the air outlet pipe 23 of the filter box 2 is connected with the first fan, the first filter mechanism 24-1 and the second filter mechanism 24-2 are sequentially inserted into corresponding grooves, the sealing plate 25 and the limiting top plate 26 are sequentially installed, then the auxiliary limiting plug plate 28 sequentially passes through the limiting mechanism and the handle part of the limiting top plate 26, so that the installation of the first filter mechanism 24-1 and the second filter mechanism 24-2 is completed, and the sealing property of the first filter mechanism 24-1 and the second filter mechanism 24-2 after installation is ensured through the sealing ring pad 27, the limiting mechanism and the sealing plate 25.

[0030] Then, the hot air entering the first fan is filtered through the first filter mechanism 24-1 and the second filter mechanism 24-2, the particles and powder mixed in the hot air are filtered, the material brought by the circulating air is prevented from being accumulated in the pipeline to cause blockage after long time high temperature, and the first filter mechanism 24-1 and the second filter mechanism 24-2 are convenient to disassemble, clean or replace after being used for a period of time.

[0031] In the embodiment, the air inlet pipe 22 of the filter box 2 is connected with the air inlet 11, the air outlet pipe 23 of the filter box 2 is connected with the first fan, the first filter mechanism 24-1 and the second filter mechanism 24-2 are sequentially inserted into corresponding grooves, the sealing plate 25 and the limiting top plate 26 are sequentially installed, then the auxiliary limiting plug plate 28 sequentially passes through the limiting mechanism and the handle part of the limiting top plate 26, so that the installation of the first filter mechanism 24-1 and the second filter mechanism 24-2 is completed, and the sealing property of the first filter mechanism 24-1 and the second filter mechanism 24-2 after installation is ensured through the sealing ring pad 27, the limiting mechanism and the sealing plate 25.

[0032] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A dual-air system heat circulation oven, comprising a heat circulation oven body (1), characterized in that, The main body (1) of the heat circulation oven is provided with an air inlet (11) on one side, and a filter box (2) is connected to one side of the air inlet (11). One side of the filter box (2) is connected to the No. 1 fan. The filter box (2) includes a fixed box (21). An air inlet pipe (22) is provided on one side of the fixed box (21), and an air outlet pipe (23) is provided on the other side of the fixed box (21). The top of the fixed box (21) has two grooves at equal intervals. A first filter mechanism (24-1) and a second filter mechanism (24-2) are installed on one side of the groove. A sealing plate (25) and a limiting top plate (26) are sequentially arranged in the groove between the first filter mechanism (24-1) and the second filter mechanism (24-2). Multiple limiting mechanisms are installed at equal intervals on the top of the fixed box (21). An auxiliary limiting plate (28) is inserted through the multiple limiting mechanisms.

2. The dual-air system heat circulation oven according to claim 1, characterized in that, The first filtration mechanism (24-1) is provided with a first filter plate (3-1) inside, and the second filtration mechanism (24-2) is provided with a second filter plate (3-2) inside.

3. The dual-air system heat circulation oven according to claim 1, characterized in that, The limiting mechanism includes a placement frame (29), a limiting pressure plate (291) is provided inside the placement frame (29), and multiple fixing screws (292) are installed at equal intervals on the top of the limiting pressure plate (291). One end of the fixing screw (292) passes through the placement frame (29) to be fitted with a fixing nut.

4. The dual-air system heat circulation oven according to claim 1, characterized in that, Both the first filter mechanism (24-1) and the second filter mechanism (24-2) include a filter frame (241). Multiple through holes are provided at equal intervals on both sides of the filter frame (241), and a through hole is provided on the front end face of the filter frame (241).

5. A dual-air system heat circulation oven according to claim 4, characterized in that, The filter frame (241) has a limiting groove on the side near the through hole, and a limiting plate (243) is inserted in the limiting groove. A card slot is provided in the filter frame (241) below the card slot.

6. A dual-air system heat circulation oven according to claim 5, characterized in that, The top of the filter frame (241) is fitted with a limiting plate (242), and a through hole is provided in the middle of the limiting plate (242).

7. A dual-air system heat circulation oven according to claim 1, characterized in that, A sealing ring gasket (27) is installed on the outside of the bottom end of the limiting top plate (26), and a handle is installed at the top of the limiting top plate (26) at the limiting mechanism.

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