METHOD FOR DISCRIMINATING POSITION WHERE BATCH PILE EXISTS IN MELTING FURNACE FOR GLASS

摘要

PURPOSE:To detect quickly and easily the actual disposition state by obtaining position versus luminance characteristic curve obtd. by scanning the liquefied glass level in a furnace and viewing the same in the scanning direction and discriminating the presence of a batch pile therefrom. CONSTITUTION:The inside of a melting furnace 1 is scanned and taken wire an ITV4 and the image pickup signal thereof is digitized by an A-D converter 5 and is stored as a position versus luminance characteristic curve together with the signal for position in a memory 6. The presence of a trough is first confirmed on the basis of such characteristic curve, and the region between the position where the lower top level of the crests before and behind the trough when viewed from the trough bottom side is attained and the position on the opposite side thereof where the same level or the higher level is attained is picked up. The transverse width of the picked up region is compared with the max. value which is beforehand determined as the size conceivable of a lumped batch pipe. The presence of the batch pile in said region is discriminated only when the transverse size is smaller than said value.