Electric resistance heating devices – Heating devices – Combined with nonelectric heating means
Patent
1998-12-30
1999-10-19
Walberg, Teresa
Electric resistance heating devices
Heating devices
Combined with nonelectric heating means
219400, 99478, F24C 100, A23B 403
Patent
active
059702095
ABSTRACT:
Disclosed is a roasting apparatus allowing automation of a roasting process including steps of charging a raw material, roasting it, and carrying a roasted product. A carrying-in port is opened in the bottom of a quantitative tank 1 for storing a raw material to be roasted, and a lid 34 is provided at an edge portion of the carrying-in port. A motor-driven cylinder 33 for opening/closing the lid 34 on the basis of an electric signal is provided to the lid 34. A roasting kiln 40 is disposed under the quantitative tank 1. An opening 63 is provided in the roasting kiln 40 and lids 42 are provided at edge portions of the opening 63. A kiln opening/closing link and a motor-driven cylinder 58 for opening/closing the lids 42 are provided outside the roasting kiln 40. A carrying passage 120 is provided under the roasting kiln 40. Burners 41 are disposed near the carrying passage 120 and electric heaters 71 are disposed around the rotational shaft 52. The outer surface of the electric heater 71 is covered with a far infrared radiation material. Slip rings 73 are provided around portions, positioned outside the roasting kiln, of the rotational shaft 52.
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Patel Vinod D.
Walberg Teresa
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