Hot air circulation oven

Abstract

The utility model relates to the technical field of ovens, in particular to a hot air circulation oven which comprises a supporting mechanism and a heating mechanism used for heating workpieces, and the heating mechanism is fixed above the supporting mechanism. By arranging the heating mechanism, when the device is used, a workpiece needing to be heated is placed on the placing net, the furnace door is closed and the heater and the fan are started after the workpiece is placed, the heater operates to generate high temperature, air in the furnace body and the workpiece are heated together, and harmful gas can be generated in the workpiece heating process; high-temperature air carrying harmful gas enters the fixing cylinder under the action of the fan, the harmful gas in the high-temperature air is adsorbed by the adsorption particles, the purified high-temperature air penetrates through the ventilation net to enter the first pipeline, and the high-temperature air in the first pipeline returns to the interior of the furnace body again through the second pipeline. By the adoption of the mode, hot air circulation is achieved, and meanwhile harmful gas generated by workpiece heating can be purified.

Description

Technical Field

[0001] The utility model relates to the technical field of baking ovens, in particular to a hot air circulation baking oven. Background Art

[0002] A baking oven is a device specifically used for drying, heating or calcining materials, usually composed of a furnace body, a heating device, a transmission device, a control system, etc. The baking oven can provide different temperatures, humidities and atmospheres according to different process requirements to complete various process procedures. In processes such as brick making, sintering, and clinker production, a baking oven is required for sintering and drying. The sintering and drying oven is mainly used in industries such as ceramics, building materials, and glass, and can ensure the homogeneity and stability of products. In the smelting process, baking ovens and magnesium sintering furnaces are often used. The baking oven can be used for drying, preheating and melting various raw materials, while the magnesium sintering furnace is mainly used for sintering metal and alloy materials.

[0003] Harmful gases may be generated during workpiece heating, and the existing baking ovens cannot handle harmful gases, which will affect the physical health of workers and need to be improved. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a hot air circulation baking oven to solve the above problems.

[0005] The utility model realizes the above purpose through the following technical solutions:

[0006] A hot air circulation baking oven includes a support mechanism, and further includes a heating mechanism for heating the workpiece, and the heating mechanism is fixed above the support mechanism;

[0007] The heating mechanism includes a furnace body, a furnace door is installed at the front of the furnace body, a connecting rod is fixed inside the furnace body, a frame is fixed at the front of the connecting rod, a placing net is fixed inside the frame, heaters are arranged on both sides of the frame, a hot air circulation component is installed on the side of the furnace body, the hot air circulation component includes a fixing plate, a fan is installed above the fixing plate, a fixing box is installed at the air outlet end of the fan, a fixing ring is installed inside the fixing box, a fixing cylinder is arranged below the fixing ring, adsorption particles are arranged inside the fixing cylinder, a breathable net is arranged below the adsorption particles, a fixing rod is installed below the fixing cylinder, a sealing plug is installed below the fixing rod, a first pipe is installed at the front and rear of the fixing box, and a second pipe is fixed at the end of the first pipe far from the fixing box.

[0008] Preferably, the support mechanism includes a bottom plate, and support rods are fixed above the bottom plate.

[0009] Preferably, a sealing mechanism is installed on the heating mechanism, and the sealing mechanism includes a cylinder, an arc plate is fixed at the telescopic end of the cylinder, and a sealing gasket is fixed on the side of the arc plate away from the cylinder.

[0010] Preferably, the support rod is welded to the bottom plate, and the support rod is made of stainless steel.

[0011] Preferably, the adsorption particles are made of activated alumina, and the sealing plug is threadedly connected to the fixed box.

[0012] Preferably, the gasket is bonded to the arc plate, and the gasket is made of rubber.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] By providing a heating mechanism, when using the device, place the workpiece to be heated on the placement net. After the workpiece is placed, close the furnace door and turn on the heater and the blower. The heater operates to generate high temperature, and the air inside the furnace body and the workpiece are heated together. Harmful gases may be generated during the heating process of the workpiece. The high-temperature air carrying the harmful gases enters the fixed cylinder under the action of the blower, and the adsorption particles adsorb the harmful gases in the high-temperature air. The purified high-temperature air passes through the air-permeable net and enters the first pipeline, and the high-temperature air in the first pipeline returns to the furnace body through the second pipeline. By adopting the above method, while realizing the hot air circulation, it is also possible to purify the harmful gases generated by heating the workpiece, so as to ensure that the health of the staff is not affected. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 1 is a schematic structural diagram of a hot air circulation drying furnace according to the present utility model;

[0017] Figure 2 is a front view of a hot air circulation drying furnace according to the present utility model;

[0018] Figure 3 is a cross-sectional view of the furnace body in a hot air circulation drying furnace according to the present utility model;

[0019] Figure 4 is an enlarged cross-sectional view of the fixed box in a hot air circulation drying furnace according to the present utility model;

[0020] Figure 5 is an enlarged schematic structural diagram of the sealing mechanism in a hot air circulation drying furnace according to the present utility model.

[0021] The description of the reference numerals is as follows:

[0022] 1. Support mechanism; 101. Base plate; 102. Support rod; 2. Heating mechanism; 201. Furnace body; 202. Furnace door; 203. Connecting rod; 204. Frame; 205. Placing net; 206. Heater; 207. Fixed plate; 208. Fan; 209. Fixed box; 210. Fixed ring; 211. Fixed cylinder; 212. Adsorption particles; 213. Breathable net; 214. Fixed rod; 215. Sealing plug; 216. First pipeline; 217. Second pipeline; 3. Sealing mechanism; 301. Cylinder; 302. Arc plate; 303. Sealing gasket. Detailed implementation manners

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0025] The present utility model will be further described below with reference to the drawings:

[0026] As Figures 1 - 5 shown, a hot air circulation baking oven includes a support mechanism 1, and further includes a heating mechanism 2 for heating workpieces, and the heating mechanism 2 is fixed above the support mechanism 1.

[0027] In the present utility model, the support mechanism 1 includes a bottom plate 101 and a support rod 102. The support rod 102 is fixed above the bottom plate 101. The support rod 102 is welded to the bottom plate 101, and the material of the support rod 102 is stainless steel. The bottom plate 101 and the support rod 102 cooperate to support the upper equipment.

[0028] In the present utility model, the heating mechanism 2 includes a furnace body 201, a furnace door 202, a connecting rod 203, a frame 204, a placement net 205, a heater 206, a fixing plate 207, a blower 208, a fixing box 209, a fixing ring 210, a fixing cylinder 211, adsorption particles 212, a breathable net 213, a fixing rod 214, a sealing plug 215, a first pipe 216, and a second pipe 217. The furnace door 202 is installed at the front of the furnace body 201. The connecting rod 203 is fixed inside the furnace body 201. The frame 204 is fixed at the front of the connecting rod 203. The placement net 205 is fixed inside the frame 204. The heater 206 is arranged on both sides of the frame 204. The fixing plate 207 is installed on the side of the furnace body 201. The blower 208 is installed above the fixing plate 207. The fixing box 209 is installed at the air outlet end of the blower 208. The fixing ring 210 is installed inside the fixing box 209. The fixing cylinder 211 is arranged below the fixing ring 210. The adsorption particles 212 are arranged inside the fixing cylinder 211. The breathable net 213 is arranged below the adsorption particles 212. The fixing rod 214 is installed below the fixing cylinder 211. The sealing plug 215 is installed below the fixing rod 214. The first pipe 216 is installed at the front and rear of the fixing box 209. The second pipe 217 is fixed at one end of the first pipe 216 away from the fixing box 209. The material of the adsorption particles 212 is activated alumina. The sealing plug 215 is threadedly connected to the fixing box 209. When using the device, place the workpiece to be heated on the placement net 205. After the workpiece is placed, close the furnace door 202 and turn on the heater 206 and the blower 208. The heater 206 operates to generate high temperature. The air inside the furnace body 201 and the workpiece are heated together. Harmful gases may be generated during the heating process of the workpiece. The high-temperature air carrying the harmful gases enters the fixing cylinder 211 under the action of the blower 208. The adsorption particles 212 adsorb the harmful gases in the high-temperature air. The purified high-temperature air passes through the breathable net 213 and enters the first pipe 216. The high-temperature air in the first pipe 216 returns to the inside of the furnace body 201 through the second pipe 217. By adopting the above method, while realizing the hot air circulation, it is also possible to purify the harmful gases generated by heating the workpiece, so as to ensure that the health of the staff is not affected.

[0029] In the present utility model, a sealing mechanism 3 is installed on the heating mechanism 2. The sealing mechanism 3 includes a cylinder 301, an arc plate 302, and a sealing gasket 303. The arc plate 302 is fixed to the telescopic end of the cylinder 301, and the sealing gasket 303 is fixed to the side of the arc plate 302 away from the cylinder 301; the sealing gasket 303 is bonded to the arc plate 302, and the material of the sealing gasket 303 is rubber; the setting of the sealing gasket 303 effectively improves the sealing effect between the fixing ring 210 and the fixing cylinder 211.

[0030] In the above structure: when using the device, place the workpiece to be heated on the placement mesh 205. After the workpiece is placed, close the furnace door 202 and turn on the heater 206 and the blower 208. The heater 206 operates to generate high temperature, and the air inside the furnace body 201 and the workpiece are heated together. Harmful gases may be generated during the heating process of the workpiece. The hot air carrying the harmful gases enters the fixing cylinder 211 under the action of the blower 208. The adsorption particles 212 adsorb the harmful gases in the hot air. The purified hot air passes through the breathable mesh 213 and enters the first pipe 216. The hot air in the first pipe 216 returns to the inside of the furnace body 201 through the second pipe 217. After the workpiece is heated, turn off the heater 206 and the blower 208, and then the furnace door 202 can be opened to take out the workpiece. When the adsorption particles 212 need to be replaced, start the cylinder 301. The cylinder 301 operates to drive the arc plate 302 and the sealing gasket 303 to move. The sealing gasket 303 moves away from the fixing ring 210 and the fixing cylinder 211. Then rotate the sealing plug 215 to separate it from the fixing box 209. Finally, remove the fixing cylinder 211 from the fixing box 209 to replace the adsorption particles 212.

[0031] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A hot air circulation oven, comprising a supporting mechanism (1), characterized in that: It also includes a heating mechanism (2) for heating the workpiece, wherein the heating mechanism (2) is fixed above the supporting mechanism (1); The heating mechanism (2) comprises a furnace body (201), a furnace door (202) is installed at the front of the furnace body (201), a connecting rod (203) is fixed inside the furnace body (201), a frame (204) is fixed at the front of the connecting rod (203), a placement net (205) is fixed inside the frame (204), a heater (206) is arranged on both sides of the frame (204), a hot air circulation component is installed on the side of the furnace body (201), the hot air circulation component comprises a fixing plate (207), a fan (208) is installed above the fixing plate (207), and a fixing box (209) is installed on the fan (208) At the air outlet end, a fixing ring (210) is installed inside the fixing box (209), a fixing tube (211) is arranged below the fixing ring (210), adsorption particles (212) are arranged inside the fixing tube (211), a breathable net (213) is arranged below the adsorption particles (212), a fixing rod (214) is installed below the fixing tube (211), a sealing plug (215) is installed below the fixing rod (214), a first pipe (216) is installed at the front and rear of the fixing box (209), and a second pipe (217) is fixed to an end of the first pipe (216) away from the fixing box (209).

2. A hot air circulation oven according to claim 1, characterized in that: The support mechanism (1) comprises a base plate (101), and a support rod (102) is fixed above the base plate (101).

3. A hot air circulation oven according to claim 2, characterized in that: A sealing mechanism (3) is installed on the heating mechanism (2), and the sealing mechanism (3) comprises a cylinder (301), a circular arc plate (302) fixed to the telescopic end of the cylinder (301), and a sealing gasket (303) fixed to a side of the circular arc plate (302) away from the cylinder (301).

4. A hot air circulation oven according to claim 2, characterized in that: The support rod (102) is welded to the bottom plate (101), and the support rod (102) is made of stainless steel.

5. The hot air circulation oven according to claim 1, characterized in that: The material of the adsorption particles (212) is activated alumina, and the sealing plug (215) is connected to the fixing box (209) via threads.

6. The hot air circulation oven according to claim 3, characterized in that: The sealing gasket (303) is bonded to the arc plate (302), and the sealing gasket (303) is made of rubber.

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