Flow laminar microwave drying equipment

Abstract

A laminar microwave drying device includes a base and a microwave unit. Two positions on the outer sides of adjacent bases define an inlet area and an outlet area for at least one food unit to enter the inlet area and exit the outlet area. The microwave unit includes a support section, a conveying section, and at least two energy waveguides. The support section is located on the base between the inlet and outlet areas to support the at least two energy waveguides. The conveying section is located on the base between the support section and the base, and is used to receive the food unit through the at least two energy waveguides. The opening of each energy waveguide has a cross-sectional shape with a major axis and a minor axis, which are arranged alternately, so that the microwave unit has uniform irradiation energy corresponding to the food unit in the conveying section in terms of energy distribution.

Claims

1. A laminar microwave drying apparatus, comprising at least: a base having a corresponding upper side, a lower side, and a peripheral side located between the upper side and the lower side, wherein two positions adjacent to the outer side of the base define an inlet area and an outlet area for at least one food unit to be input into the inlet area and output from the outlet area; a microwave unit comprising at least a first support portion, a first conveying portion, and at least two energy waveguide devices; the first support portion being disposed on the base and located between the inlet area and the outlet area; the first conveying portion being disposed on the base and located between the support portion and the base, the first conveying portion having a first end and a second end, the first end of the first conveying portion corresponding to the inlet area for receiving the food unit from the first end to the second end, the second end of the first conveying portion corresponding to the outlet area, and the direction from the first end to the second end being defined as a conveying direction; Each of these energy wave guiding devices has an energy wave generator on one side to generate an energy wave, and a guiding channel on the other side to guide and disperse the energy wave. The cross-sectional area of ​​the guiding channel gradually increases in the direction of an opening, forming a rectangular or elliptical cross-sectional shape with a major axis and a minor axis, defined as the major axis direction and the minor axis direction, respectively. Each of the energy wave guiding devices is arranged alternately or in a periodic alternating arrangement, and one end of the guiding channel is connected to the energy wave, while the other end of the guiding channel is an open end corresponding to the conveying part, so that the energy wave can be transmitted to the food unit.

2. The laminar microwave drying apparatus as described in claim 1, wherein, The first conveying unit includes at least a drive motor, two rotatable rods fixed to the base, two chains respectively spanning the two toothed ends of the two rotatable rods, and at least one receiving part with its two ends respectively spanning the two chains.

3. The laminar microwave drying apparatus as described in claim 2, wherein, The receiving part can be configured as a series of trays arranged in a row at the middle section of a rod.

4. The laminar microwave drying apparatus as described in claim 1, wherein, The microwave unit further includes a second carrier section, a second transmission section, and at least two energy waveguide devices.

5. The laminar microwave drying apparatus as described in claim 4, wherein, The second support portion is located below the first support portion of the base and between the inlet area and the outlet area.

6. The laminar microwave drying apparatus as described in claim 4, wherein, The second conveying section is disposed on the base and located between the second bearing section and the base. The second conveying section also has a first end and a second end. The first end of the second conveying section is connected to the first conveying section and conveys from the first end to the second end. The second end of the second conveying section corresponds to the outlet area. The direction from the first end to the second end is defined as a conveying direction.

7. The laminar microwave drying apparatus as described in claim 1, wherein, The first support unit is equipped with an extraction pipe for extracting the gas generated by the food unit during the drying process.

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