| 摘要 |
PROBLEM TO BE SOLVED: To obtain a measuring method in which a layer height level can be measured by a method wherein a plurality of stages of transmitting-receiving antennas of microwaves are installed so as to face the furnace-body side face of a waste gasification melting furnace and an irregularity in the intensity of a signal which is transmitted and propagated inside the furnace is found. SOLUTION: A filling layer by coke as a lump-shaped carbon substance and by wastes is formed in a melting furnace body, the high-temperature air is supplied into the coke filling layer via a main tuyere and a subtuyere, the wastes which is put into the melting furnace body are gasified and burned, and incombustibles are melted. At this time, the upper part of the filling layer is set to a fluidic state. Then, a plurality of stages of transmitting-receiving antennas of microwaves are installed so as to face the side face of the furnace body. In this manner, the transmission intensity of the microwaves between the plurality of faced antennas is changed continuously or meandered periodically. Thereby, the arrival position of the layer height level of the filling layer is discriminated and measured. |
