Patent ID: 6279494
Filing Date: 2001-08-28
Classification: C03B,F27B,Y02P

Abstract:
An operation control method for a melting furnace having a supply opening for incineration ash, a discharge opening for molten slag, and a heat source for applying an amount of heat to supplied incineration ash, said operation control method comprising:imaging a vicinity of a surface of molten slag heated by an amount of heat transferred from the heat source with imaging means to obtain an image;differentiating a high-temperature region in said image that is not lower than a predetermined temperature from a low-temperature region in said image that is lower than the predetermined temperature; andcontrolling the amount of heat applied to the incineration ash from the heat source so that a size of said differentiated high-temperature region reaches a predetermined value;wherein said controlling the amount of heat applied to the incineration ash from the heat source includes supplying a reduced amount of heat to the incineration ash from the heat source when the size of said high-temperature region is not smaller than a predetermined size, and supplying an increased amount of heat to the incineration ash from the heat source when the size of said high-temperature region is smaller than the predetermined size, and said predetermined temperature is about 1,300.degree. C.