Non-frying air tunnel furnace

Abstract

The utility model relates to a non-frying air tunnel furnace, which comprises a box body, an air tunnel furnace, a conveying assembly, a fan and a microwave generator, a microwave driving power supply is fixedly arranged on the top of the inner wall of the box body, an adjustable auxiliary humidity control fan is fixedly arranged on one side of the top of the box body, and the conveying assembly comprises an upper-layer conveying piece and a lower-layer conveying piece. The upper-layer conveying part comprises upper-layer synchronous heat preservation and humidity control cloth, a supporting frame and a pressing roller, the environment in a frying state can be completely simulated to make non-fried food, the puffing effect is guaranteed, meanwhile, oil-free and continuous and rapid production can be achieved, and therefore the requirements for health and energy saving are met; part of humidity control is achieved through the added upper-layer synchronous heat preservation humidity control cloth, the adjustable auxiliary humidity control draught fan adjusts the air draft through the switching value of a humidity discharging opening in the upper portion of the box body, auxiliary humidity control is achieved, and the problem that the amount of humidity in a cavity is not accurate due to breach distribution control and humidity discharging air volume control is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of air tunnel furnaces, in particular to a non-frying air tunnel furnace. Background Art

[0002] Because people now pay attention to healthy eating, most of the existing puffed foods on the market are fried foods. Many customers want to mass-produce non-fried foods, and have used existing equipment for repeated tests, including the existing equipment of peers, but the results are not ideal. The main problem is that the puffing effect and taste of the fried state cannot be achieved. For example, taking pork skin strips, customers do not want to use the original fryer for frying and puffing because the fat content exceeds the standard and the taste is greasy. They have to make technical reforms and consider non-fried equipment, but the existing equipment on the market cannot make food that is the same as the fried state.

[0003] Because pig skin itself has a fishy smell, if the puffing degree and temperature are not reached, the fishy smell cannot be removed. The pig skin made by the existing equipment on the market has a hard texture, a strong fishy smell, and does not have the flowery shape after frying. Currently, there is no equipment on the market that can truly achieve mass production of non-fried food. The reason lies in the control of the rupture and the control of the moisture removal air volume, and the amount of moisture removed from the cavity is inaccurate. Utility Model Content

[0004] In view of the existing patents, there is no equipment on the market that can truly realize the mass production of non-fried food. The reason lies in the technical problems of the layout of the breach and the control of the moisture removal air volume, and the inaccurate amount of humidity in the cavity. The utility model provides a non-fried air tunnel furnace.

[0005] The technical scheme adopted by the utility model is: a non-frying air tunnel furnace, comprising a box body, an air tunnel furnace, a conveying assembly, a fan and a microwave generator, a microwave driving power supply is fixedly installed on the top of the inner wall of the box body, an adjustable auxiliary humidity control fan is fixedly installed on one side of the top of the box body, the conveying assembly comprises an upper conveying member and a lower conveying member, the upper conveying member comprises an upper synchronous heat-insulating and humidity-controlling cloth, a support frame and a pressure roller, the lower conveying member comprises a support table and a lower synchronous conveyor belt, a plurality of cavity breaches corresponding to the microwave generator are opened at the connection between the box body and the air tunnel furnace, the driving power supply generates a high voltage of 4200V, drives the microwave generator to generate microwaves, and the electromagnetic wave of the microwave generator enters the interior of the air tunnel furnace through the cavity breach to act on the material.

[0006] Furthermore, the upper layer of synchronous thermal insulation and moisture control cloth is installed on the inner side of the support frame. Two support frames are provided, which are symmetrically arranged on the support platform front and back. The upper layer of synchronous thermal insulation and moisture control cloth is installed on the support frame through a support shaft. Because if the moisture dissipates too quickly during the primary puffing process of the material, it will lead to incomplete puffing, so an upper layer of synchronous thermal insulation and moisture control cloth is provided to achieve a partial moisture control effect.

[0007] Furthermore, the pressing roller is rotatably installed on one side of the air tunnel furnace through a supporting sheet, and the pressing roller is located above the upper layer of synchronous thermal insulation and moisture control cloth. The pressing roller presses the upper layer of synchronous thermal insulation and moisture control cloth to the height of the front end feed port of the air tunnel furnace, so that the upper layer of synchronous thermal insulation and moisture control cloth can pass through the air tunnel furnace in parallel.

[0008] Furthermore, the support frame is fixed to the top of the support platform by bolts. The support platform is provided with two groups, which are respectively fixed on both sides of the air tunnel furnace and symmetrically arranged. The support frames, pressure rollers and support shafts for installing the upper layer of synchronous temperature insulation and moisture control cloth on the top of the two support platforms are also symmetrically arranged above them.

[0009] Furthermore, the lower synchronous conveyor belt is installed on the inner side of the support platform, and the upper and lower double belts of the upper synchronous thermal insulation and moisture control cloth and the lower synchronous conveyor belt can hold the material well between the two belts to simulate the closed and high-temperature environment under the frying state to the greatest extent, and the upper synchronous thermal insulation and moisture control cloth is a Teflon mesh belt, which plays a role in ventilation of the material, and the lower synchronous conveyor belt is a Teflon flat belt, which plays a role in keeping the material warm.

[0010] Furthermore, the upper synchronous thermal insulation and moisture control cloth and the lower synchronous conveyor belt are both installed throughout the interior of the air tunnel furnace, and the box is fixedly installed on the top of the air tunnel furnace. The material passes between the upper synchronous thermal insulation and moisture control cloth and the lower synchronous conveyor belt and enters the air tunnel furnace.

[0011] Furthermore, the fan is fixedly mounted on the top of the box, and the microwave generator is mounted inside the box. The fans are evenly arranged on the top of the box, and the microwave generators are densely arranged at the front end of the air tunnel furnace.

[0012] The beneficial effects of the utility model are as follows: compared with the prior art, the utility model:

[0013] 1. It can completely simulate the frying environment to make non-fried food. While ensuring the puffing effect, it can also achieve oil-free and continuous and rapid production, thus achieving the requirements of health and energy saving.

[0014] 2. A partial humidity control is achieved by adding an upper synchronous thermal insulation and moisture control cloth. The adjustable auxiliary humidity control fan uses the switch amount of the moisture discharge port above the box to adjust the exhaust size to achieve auxiliary humidity control, solve the problem of inaccurate humidity quantity in the cavity by controlling the rupture and the moisture discharge air volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view of the utility model;

[0016] Figure 2 It is a top view of the utility model;

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 4 It is an entrance view of the air tunnel furnace in the utility model.

[0019] The markings in the figure are: 1. Box body; 2. Air tunnel furnace; 3. Conveying assembly; 301. Upper conveying member; 3011. Upper synchronous heat preservation and moisture control cloth; 3012. Support frame; 3013. Pressing roller; 302. Lower conveying member; 3021. Support table; 3022. Lower synchronous conveyor belt; 4. Fan; 5. Microwave generator; 6. Microwave driving power supply; 7. Adjustable auxiliary humidity control fan. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] The following is combined with Figure 1-4 The utility model is further described.

[0023] In order to solve the problems existing in the background technology, the present application proposes the following technical solution: non-frying air tunnel oven.

[0024] The specific technical scheme includes a box body 1, an air tunnel furnace 2, a conveying component 3, a fan 4 and a microwave generator 5. A microwave driving power supply 6 is fixedly installed on the top of the inner wall of the box body 1, and an adjustable auxiliary humidity control fan 7 is fixedly installed on one side of the top of the box body 1. The conveying component 3 includes an upper conveying member 301 and a lower conveying member 302. The upper conveying member 301 includes an upper synchronous heat preservation and moisture control cloth 3011, a support frame 3012 and a pressure roller 3013. The lower conveying member 302 includes a support platform 3021 and a lower synchronous conveyor belt 3022.

[0025] The material to be puffed is fed into the air tunnel furnace 2 by means of vibration feeding by utilizing the principle of microwave penetration and instantaneous temperature increase without preheating. The material is subjected to instantaneous high temperature and rapidly generates heat from the inside to expand and bubble, presenting a flower shape after frying, just like the high temperature of a hot oil pan causes the material to expand and bubble instantly when put into the pan. Different from ordinary microwave drying equipment, ventilation is required during the drying process to achieve the purpose of drying. The conveying component 3 with an upper and lower double-belt design can hold the material well between the upper synchronous temperature-insulating and moisture-controlling cloth 3011 and the lower synchronous conveyor belt 3022 to simulate the closed and high-temperature environment of the frying state to the greatest extent.

[0026] The upper synchronous thermal insulation and moisture control cloth 3011 is installed on the inner side of the support frame 3012, the pressure roller 3013 is rotatably installed on one side of the air tunnel furnace 2 through the support sheet, and the pressure roller 3013 is located above the upper synchronous thermal insulation and moisture control cloth 3011, the support frame 3012 is fixedly installed on the top of the support platform 3021 by bolts, the lower synchronous conveyor belt 3022 is installed on the inner side of the support platform 3021, and the upper synchronous thermal insulation and moisture control cloth 3011 and the lower synchronous conveyor belt 3022 are both installed through the interior of the air tunnel furnace 2, the box 1 is fixedly installed on the top of the air tunnel furnace 2, the fan 4 is fixedly installed on the top of the box 1, and the microwave generator 5 is installed inside the box 1, the front end of the air tunnel furnace 2 concentrates heat to ensure that the explosion point of expansion is reached, the magnetrons are arranged in a concentrated and large number, and the rear end of the air tunnel furnace 2 assists the material to discharge a small amount of moisture for shaping, and the magnetrons are arranged in a dispersed and small number.

[0027] In order for those skilled in the art to fully understand the technical solution, this application makes the following overall summary:

[0028] When in use, the material falls between the upper synchronous heat preservation and moisture control cloth 3011 and the lower synchronous conveyor belt 3022 by means of vibration feeding, and is fed into the air tunnel furnace 2 by the conveying component 3. Based on the original tunnel microwave equipment, the distance of the energy feed inlet is adjusted, and the energy feed inlet at the material entry end is correspondingly increased by one third to one and a half, so that the material can quickly achieve water molecule friction after entering the air tunnel furnace 2, so that the internal moisture is quickly discharged from the inside to the outside. During the water discharge process, pressure will be generated from the inside to the outside, so that the material will expand, achieving the purpose of puffing. In order to prevent the moisture from dissipating too quickly during the secondary puffing process, which will cause the material to not be fully puffed, the upper synchronous thermal insulation and moisture control cloth 3011 which is a Teflon mesh belt plays a role in ventilation of the material, and the lower synchronous conveyor belt 3022 which is a Teflon flat belt plays a role in keeping the material warm. A part of the moisture control is achieved by adding the upper synchronous thermal insulation and moisture control cloth 3011, and the adjustable auxiliary moisture control fan 7 is for auxiliary moisture control. The switch amount of the moisture discharge port above the box 1 is used to adjust the exhaust size, so as to achieve auxiliary moisture control. Through the mutual cooperation of the above checkpoints, the material can be puffed to the optimal state.

[0029] The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0030] Although the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A non-frying air tunnel oven, comprising a box (1), an air tunnel oven (2), a conveying assembly (3), a fan (4) and a microwave generator (5), characterized in that: A microwave driving power source (6) is fixedly mounted on the top of the inner wall of the box body (1); an adjustable auxiliary humidity control fan (7) is fixedly mounted on one side of the top of the box body (1); the conveying assembly (3) comprises an upper conveying member (301) and a lower conveying member (302); the upper conveying member (301) comprises an upper synchronous heat preservation and humidity control cloth (3011), a support frame (3012) and a pressure roller (3013); and the lower conveying member (302) comprises a support platform (3021) and a lower synchronous conveyor belt (3022).

2. The non-frying air tunnel oven according to claim 1, characterized in that: The upper synchronous temperature-insulating and moisture-controlling cloth (3011) is installed on the inner side of the supporting frame (3012).

3. The non-frying air tunnel oven according to claim 1, characterized in that: The pressing roller (3013) is rotatably mounted on one side of the air tunnel furnace (2) via a supporting sheet, and the pressing roller (3013) is located above the upper synchronous temperature-insulating and moisture-controlling cloth (3011).

4. The non-frying air tunnel oven according to claim 1, characterized in that: The support frame (3012) is fixedly mounted on the top of the support platform (3021) by means of bolts.

5. The non-frying air tunnel oven according to claim 1, characterized in that: The lower synchronous conveyor belt (3022) is installed on the inner side of the support platform (3021).

6. The non-frying air tunnel oven according to claim 5, characterized in that: Furthermore, the upper synchronous temperature-insulating and moisture-controlling cloth (3011) and the lower synchronous conveyor belt (3022) are both installed through the interior of the air tunnel furnace (2), and the box body (1) is fixedly installed on the top of the air tunnel furnace (2).

7. The non-frying air tunnel oven according to claim 1, characterized in that: The fan (4) is fixedly mounted on the top of the box (1), and the microwave generator (5) is mounted inside the box (1).

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