MICROWAVE HEATING DENITRATING METHOD AND DEVICE

A nitrate solution which is a substance to be treated is heated and denitrated using microwaves, by introducing the substance directly into a cylindrical oven to which microwaves are applied, horizontally rotating the oven about a vertical axis, detecting the amount of reflected waves of the applied...

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Bibliographische Detailangaben
Hauptverfasser:	KAWATO YOSHIMI, ARISHIGE TATSUSHI, TAMAI HIDEAKI, MINE SHIZUO, HAYANO NORIYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	COLORIMETRY DECONTAMINATION ARRANGEMENTS THEREFOR ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING NUCLEAR ENGINEERING NUCLEAR PHYSICS NUCLEAR REACTORS PHYSICS PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT RADIATION PYROMETRY TESTING TREATING RADIOACTIVELY CONTAMINATED MATERIAL
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Beschreibung
Zusammenfassung:	A nitrate solution which is a substance to be treated is heated and denitrated using microwaves, by introducing the substance directly into a cylindrical oven to which microwaves are applied, horizontally rotating the oven about a vertical axis, detecting the amount of reflected waves of the applied microwaves with time to observe the heating condition of the substance, and controlling microwave power to be applied according to the detected amount of the reflected waves and the change in the amount of reflected waves with time. The cylindrical oven preferably has a construction capable of being separated into a stationary upper part and a horizontally rotatable lower part constituting a closed-bottom vessel. These two parts are combined through a choke coupling mechanism to form the oven. According to the detected values of the reflected waves, the precise control of the microwave power applied to the substance to be treated can be conducted at a suitable time.