Tunnel type dish microwave drying equipment

Abstract

The utility model relates to tunnel type dish microwave drying equipment which comprises a drying tunnel, a feeding port is formed in one side of the drying tunnel, a discharging port is formed in the other side of the drying tunnel, conveying devices are arranged in the feeding port and the discharging port, a first partition plate is arranged in the upper portion of the drying tunnel, and a second partition plate is arranged in the lower portion of the drying tunnel. A plurality of drying elements and ventilation elements are arranged on the surface of the first partition plate, one end of each ventilation element is connected with an air exhaust assembly, and a filtering element is arranged at the other end of each ventilation element; after products in the drying tunnel are subjected to microwave drying, steam in the drying tunnel can be exhausted to the outside through the air exhaust assembly, some small vegetable foods are not prone to being adsorbed into the circular channel under blocking of the filtering element in the exhaust process, the vegetable foods are not prone to being accumulated in the circular channel during long-term production, mildewing is avoided, and the service life of the food is prolonged. And the food safety during production is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of food processing, in particular to tunnel type microwave drying equipment for dishes. Background Art

[0002] With the improvement of people's living standards, people pay more and more attention to the quality of food drying products and put forward higher requirements for food quality. The drying process has a great influence on the quality of agricultural products and food products, and sometimes even plays a decisive role. At present, expensive methods and equipment are often required to obtain high-quality dried products, such as freeze drying. There is still a great contradiction between the economy of drying and product quality. How to obtain high-quality dehydrated and dried products with low energy consumption and low cost is one of the biggest challenges in the research and development of drying technology.

[0003] The authorization announcement number is CN207865898U, which discloses a tunnel-type microwave drying machine for medicinal materials. Combined with its specification and drawings, the water contained in the medicinal materials in its scheme evaporates, and at the same time, the moisture generated during the drying process of the medicinal materials inside the drying tunnel is discharged through the exhaust duct and the exhaust fan. However, there is a certain probability that smaller medicinal materials will be discharged through the exhaust duct during exhaust. Over time, the medicinal materials accumulated in the exhaust duct at the back are prone to mold, affecting food safety and bringing inconvenience to production. Summary of the invention

[0004] The utility model mainly aims at the problems existing in the operation of the above-mentioned microwave drying equipment and invents a tunnel type microwave drying equipment for vegetables. After the products in the drying tunnel are microwave dried, the exhaust fan will discharge the steam inside the drying tunnel to the outside through the trapezoidal channel, the circular channel and the exhaust duct in sequence. During the exhaust process, due to the mesh structure of the filter element, some small vegetable foods are not easily adsorbed to the inside of the circular channel. During long-term production, it is not easy for vegetable foods to accumulate in the circular channel, thus avoiding mold and effectively ensuring food safety during production.

[0005] The invention objective of the utility model is achieved through the following technical scheme: a tunnel-type microwave drying equipment for food, comprising a drying tunnel, a material inlet is provided on one side of the drying tunnel, a material outlet is provided on the other side of the drying tunnel, a conveying device is provided inside the material inlet and the material outlet, a first partition is provided inside the upper part of the drying tunnel, a plurality of drying elements and a plurality of ventilation elements are provided on the surface of the first partition, one end of the ventilation element is connected to an exhaust assembly, and the other end of the ventilation element is provided with a filter element.

[0006] Preferably, each of the drying elements is a magnetron, and microwaves emitted by the magnetron act on the interior of the drying tunnel.

[0007] Preferably, each of the ventilation elements includes a trapezoidal channel and a circular channel, one end of the trapezoidal channel passes through the interior of the first partition, and the other end of the trapezoidal channel is connected to the circular channel, and the filter element is arranged at the junction of the trapezoidal channel and the circular channel.

[0008] Preferably, the filter element is in the shape of a mesh structure, and the filter element protrudes toward one side of the drying tunnel.

[0009] Preferably, the conveying device includes a conveyor belt, a driving rod, a guide rod, a plurality of first support blocks, a plurality of second support blocks and a support frame, the surface of the support frame is provided with a plurality of first support blocks, the side of the support frame facing the bottom is provided with a plurality of second support blocks, a driving rod is rotatably connected between every two of the first support blocks, a guide rod is rotatably connected between every two of the second support blocks, the surfaces of the guide rod and the driving rod are transmission-connected with the conveyor belt, and the driving rod is connected to an external driving motor.

[0010] Preferably, the exhaust assembly includes an exhaust fan and an exhaust duct, and a second partition and a third partition are provided inside the upper part of the drying tunnel. The exhaust fan is arranged on the surface of the second partition, and one end of the exhaust fan is connected to the interior of the circular channel. A third partition is provided at the top of the drying tunnel, and the circular channel passes through the second partition and the third partition and is connected to the exhaust duct.

[0011] Preferably, the side wall of the drying tunnel is provided with a plurality of observation square grooves, and an observation window is provided inside the surface of each observation square groove.

[0012] Compared with the prior art, the utility model has the following beneficial effects: 1. After the products in the drying tunnel are microwave dried, the exhaust fan will discharge the steam inside the drying tunnel to the outside through the trapezoidal channel, the circular channel and the exhaust duct in sequence. During the exhaust process, due to the mesh structure of the filter element, some small vegetable foods are not easily adsorbed to the inside of the circular channel. During long-term production, the circular channel is not easy to accumulate vegetable foods, which avoids mold and effectively ensures food safety during production. 2. The side wall of the drying tunnel is provided with an observation window, which makes it easy to observe the production situation of the products inside the drying tunnel and improves the inspection efficiency during production. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the utility model;

[0014] Figure 2 This is a three-dimensional diagram of the utility model after the second partition and the third partition are removed;

[0015] Figure 3 It is a partial stereogram of the utility model;

[0016] Figure 4 It is a three-dimensional diagram of the utility model;

[0017] Figure 5 It is a partial enlarged view of the utility model;

[0018] Figure 6 This is a three-dimensional diagram of the utility model after the third partition is removed.

[0019] Markings in the figure: 1. Drying tunnel; 11. Feed inlet; 12. Discharge outlet; 13. First partition; 14. Second partition; 15. Third partition; 16. Observation square trough; 17. Observation window; 2. Conveying device; 21. Conveyor belt; 22. Driving rod; 23. Guide rod; 24. First support block; 25. Second support block; 26. Support frame; 3. Drying element; 4. Ventilation element; 41. Trapezoidal channel; 42. Circular channel; 5. Exhaust assembly; 51. Exhaust fan; 52. Exhaust duct; 6. Filter element. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0021] As shown in the figure, a tunnel-type microwave drying device for dishes comprises a drying tunnel 1, wherein a material inlet 11 is arranged on one side of the drying tunnel 1, and a material outlet 12 is arranged on the other side of the drying tunnel 1, and a conveying device 2 is arranged inside the material inlet 11 and the material outlet 12. Specifically, the conveying device 2 comprises a conveyor belt 21, a driving rod 22, a guide rod 23, four first support blocks 24, four second support blocks 25 and a support frame 26, wherein the surface of the support frame 26 is provided with four first support blocks 24, and the side of the support frame 26 facing the bottom is provided with four second support blocks 25, a driving rod 22 is rotatably connected between every two of the first support blocks 24, and a guide rod 23 is rotatably connected between every two of the second support blocks 25, and a conveyor belt 21 is transmission-connected to the surface of the guide rod 23 and the driving rod 22, and the driving rod 22 is connected to an external driving motor. After such arrangement, when the driving rod 22 rotates, it will drive the conveyor belt 21, and the guide rod 23 plays a supporting and guiding role during the movement of the conveyor belt 21.

[0022] In this embodiment, a first baffle 13 is provided inside the upper part of the drying tunnel 1, and a plurality of drying elements 3 and a plurality of ventilation elements 4 are provided on the surface of the first baffle 13. Each of the drying elements 3 is a magnetron, and the microwaves emitted by the magnetron act on the interior of the drying tunnel 1. Each of the ventilation elements 4 includes a trapezoidal channel 41 and a circular channel 42. One end of the trapezoidal channel 41 passes through the interior of the first baffle 13, and the other end of the trapezoidal channel 41 is connected to the circular channel 42. The filter element 6 is arranged at the junction of the trapezoidal channel 41 and the circular channel 42. The filter element 6 is in the shape of a mesh structure, and the filter element 6 protrudes toward one side of the drying tunnel 1. One end of the ventilation element 4 is connected to an exhaust component 5. Specifically, the exhaust component 5 includes an exhaust fan 51 and an exhaust pipe 52. A second partition 14 and a third partition 15 are also provided in the drying tunnel 1. The exhaust fan 51 is provided on the surface of the second partition 14. One end of the exhaust fan 51 is connected to the inside of the circular channel 42. A third partition 15 is provided on the top of the drying tunnel 1. The circular channel 42 passes through the second partition 14 and the third partition 15 and is connected to the exhaust duct 52. After this arrangement, the drying element 3 emits microwaves, and the microwave energy directly acts on the medium molecules to convert into heat energy. After the vegetable food absorbs the microwave energy and converts it into heat, the temperature of the food rises, and the moisture contained in the food evaporates and dries. At the same time, the exhaust fan 51 will work to discharge the steam inside the drying tunnel 1 to the outside through the trapezoidal channel 41, the circular channel 42 and the exhaust duct 52 in sequence. At the same time, due to the mesh structure of the filter element 6 during the exhaust process, some small dishes will not be adsorbed to the inside of the circular channel 42.

[0023] In this embodiment, a plurality of observation square grooves 16 are provided on the side wall of the drying tunnel 1 , and an observation window 17 is provided inside the surface of each observation square groove 16 . This arrangement is for the purpose of facilitating observation of the product production situation inside the drying tunnel 1 .

[0024] Working principle and usage of this utility model:

[0025] During production, the vegetables to be dried are first placed on the surface of the conveyor belt 21, and then the driving rod 22 rotates to drive the conveyor belt 21. During the movement of the conveyor belt 21, the guide rod 23 plays a supporting and guiding role, so that the vegetable food will pass through the feeding port 11 and move to the inside of the drying tunnel 1. When moving to the inside of the drying tunnel 1, the drying element 3 emits microwaves, and the microwave energy directly acts on the medium molecules to convert into thermal energy. After the vegetable food absorbs the microwave energy and converts it into heat, the temperature of the vegetable food rises, and the moisture contained in the vegetable food evaporates and dries. At the same time, the exhaust fan 51 will work to discharge the steam inside the drying tunnel 1 to the outside through the trapezoidal channel 41, the circular channel 42 and the exhaust duct 52 in turn. At the same time, during the exhaust process, due to the mesh structure of the filter element 6, some small vegetables will not be adsorbed to the inside of the circular channel 42. The entire vegetable food will be transported to the outside from the discharge port 12 after passing through the drying tunnel 1.

[0026] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A tunnel-type food microwave drying device, comprising a drying tunnel (1), characterized in that: A material inlet (11) is provided on one side of the drying tunnel (1), and a material outlet (12) is provided on the other side of the drying tunnel (1); a conveying device (2) is provided inside the material inlet (11) and the material outlet (12); a first partition (13) is provided inside the upper part of the drying tunnel (1); a plurality of drying elements (3) and a plurality of ventilation elements (4) are provided on the surface of the first partition (13); one end of the ventilation element (4) is connected to an exhaust assembly (5); and the other end of the ventilation element (4) is provided with a filter element (6).

2. The tunnel type food microwave drying equipment according to claim 1, characterized in that: Each of the drying elements (3) is a magnetron, and microwaves emitted by the magnetron act on the interior of the drying tunnel (1).

3. The tunnel type food microwave drying equipment according to claim 2, characterized in that: Each of the ventilation elements (4) comprises a trapezoidal channel (41) and a circular channel (42); one end of the trapezoidal channel (41) passes through the interior of the first partition plate (13); the other end of the trapezoidal channel (41) is connected to the circular channel (42); and the filter element (6) is arranged at the junction of the trapezoidal channel (41) and the circular channel (42).

4. The tunnel type food microwave drying equipment according to claim 3, characterized in that: The filter element (6) is in the shape of a mesh structure, and the filter element (6) protrudes toward one side of the drying tunnel (1).

5. The tunnel type microwave drying equipment for food according to claim 4, characterized in that: The conveying device (2) comprises a conveyor belt (21), a driving rod (22), a guide rod (23), a plurality of first support blocks (24), a plurality of second support blocks (25) and a support frame (26); the surface of the support frame (26) is provided with a plurality of first support blocks (24); a side of the support frame (26) facing the bottom is provided with a plurality of second support blocks (25); a driving rod (22) is rotatably connected between every two of the first support blocks (24); a guide rod (23) is rotatably connected between every two of the second support blocks (25); the surfaces of the guide rod (23) and the driving rod (22) are drivingly connected with the conveyor belt (21); and the driving rod (22) is connected to an external driving motor.

6. The tunnel type microwave drying equipment for food according to claim 5, characterized in that: The exhaust assembly (5) comprises an exhaust fan (51) and an exhaust duct (52). A second partition (14) and a third partition (15) are further provided inside the upper part of the drying tunnel (1). The exhaust fan (51) is arranged on the surface of the second partition (14). One end of the exhaust fan (51) is connected to the inside of the circular channel (42). A third partition (15) is provided at the top of the upper part of the drying tunnel (1). The circular channel (42) passes through the second partition (14) and the third partition (15) and is connected to the exhaust duct (52).

7. The tunnel type microwave drying equipment for food according to any one of claims 1 to 6, characterized in that: The side wall of the drying tunnel (1) is provided with a plurality of observation square grooves (16), and an observation window (17) is provided inside the surface of each observation square groove (16).

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