| 摘要 |
An operation control method and apparatus are provided for a melting furnace 1 having a supply opening 2 for incineration ash 6, a discharge opening 3 for molten slag 7, and a heat source 9 for applying an amount of heat to the supplied incineration ash. The method includes the steps of imaging the vicinity of the surface of molten slag 7 heated by an amount of heat transferred from the heat source with a television camera 5 to obtain an electronic image, differentiating a high-temperature region in the electronic image that is not lower than a predetermined temperature (1,300° C.) from a low-temperature region in the electronic image that is lower than the predetermined temperature, and controlling the amount of heat applied to the incineration ash from the heat source so that the size of the differentiated high-temperature region reaches a predetermined value. The television camera 5 has a relay lens 4 and is placed so that the surface portion of the molten slag 7, to which an amount of heat is transferred from the heat source 9, lies approximately in the center of the image.
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