Title:
AUTOMATIC CONTROLLER OF MOLTEN STEEL OUTFLOW AND ITS SIGNAL DISCRIMINATING DEVICE
Document Type and Number:
Japanese Patent JPS5362734
Kind Code:
A
Abstract:
A molten steel outflow automatically controlling device comprising an infrared ray camera for detecting infrared rays emitted by a molten steel stream and slag flowing down out of a molten steel vessel such as a ladle or converter, a color monitor for converting the infrared rays emitted by the molten steel and slag into video signals with such infrared ray camera and for developing monitor picture images by color-printing the signals in two kinds, a signal discriminating device for making the two kinds of color picture images discriminating signals by the ratio of areas and a nozzle closing device for closing a nozzle for the outflow of molten steel of the molten steel vessel by such discriminating signal as is mentioned above, whereby, when the remaining amount of the molten steel in the molten steel vessel becomes small, the outflow of the slag will be detected and the nozzle for the outflow of the molten steel will be automatically closed to stop the pouring and to prevent the slag from mixing into the molten steel.
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Inventors:
SAKASHITA TSUTOMU
YAMAZAKI ISAO
YAMAZAKI ISAO
Application Number:
JP13869276A
Publication Date:
June 05, 1978
Filing Date:
November 17, 1976
Export Citation:
Assignee:
SUMITOMO METAL IND
International Classes:
B22D2/00; B22D11/16; B22D11/18; B22D37/00; C21C5/46; (IPC1-7): B22D11/16; B22D39/00; C21C5/46