MICROWAVE CONVECTIVE CONTINUOUS FLOW HOP DRYER WITH TIERED RESONATORS OF DIFFERENT CONFIGURATIONS Russian patent published in 2023 - IPC C12C3/02 

FIELD: agriculture.

SUBSTANCE: invention can be used in hop farms for drying freshly harvested hops. Microwave convective hop dryer contains tiered hemispherical 4, cylindrical 10 and truncated conical 15 non-ferromagnetic resonators. They are joined together by bases 6, 12 of equal diameter. Along the perimeter of resonators 4, 10, 15, waveguides with air-cooled magnetrons 26, 24, 22 are installed with a shift of 120 degrees, the emitters of which are directed into the corresponding resonators. In each non-ferromagnetic resonator 4, 10, 15, dielectric perforated cellular electric drums 5, 9, 16 are installed coaxially vertically with a height equal to the height of the corresponding resonator and a diameter equal to the diameter of the small base 17 of the truncated conical resonator 15. On the hemispherical resonator 4, where the segment 2 is cut out corresponding to the size of the cross section of the drum cell 5, a non-ferromagnetic loading tank 1 is installed. On all bases 6, 12, 17 of the resonators at the level of the cells of the dielectric drums 5, 9, 16, radial segments are cut corresponding to the radius of the drum. The segment chord size is not more than two wave penetration depths. The electric drive 3 of the cellular drum 5 of the first tier is located on the surface of the hemispherical resonator 4. The second cellular drum 9 is set in motion due to the engagement of the toothed dielectric gear and the dielectric ring 11 on the drum 9. The electric drive 19 of the third cellular drum is located outside the truncated conical resonator 15. Under the open segment 18, on a small base 17 of a truncated conical resonator 15, there is a non-ferromagnetic receiving capacitance 20. Air outlets 27, 7, 13 and air ducts 25, 23, 21 from heat guns are attached to the side surfaces of all resonators 4, 10, 15 from opposite sides, directed from bottom to top, against the movement of raw materials in the cells of the drums in height.

EFFECT: use of the invention improves the quality of hop processing.

1 cl, 8 dwg