Image analysis – Applications – Manufacturing or product inspection
Patent
1995-08-30
1997-12-02
Boudreau, Leo
Image analysis
Applications
Manufacturing or product inspection
348 83, 75387, 266100, G06K 900, C21C 104, C21B 724, H04N 718
Patent
active
056944802
ABSTRACT:
Vortex melting furnace facilities picks up an image of molten slag flow in a direction traverse to the molten slag flow discharged from the furnace, calculates a molten slag flow rate by brilliance discrimination of the image pick-up signal and controls a water feed rate of a molten slag wet granulation and granulated slag dewatering apparatus and a flow rate of the molten slag in the vortex melting furnace. A video camera is arranged such that a direction of image pick-up traverses to a direction of the molten slag flow and the resulting image is brilliance discriminated by a high brilliance area for the molten slag and a low brilliance area for a molten slag conduit, and the high brilliance area is converted to the fusion flow rate from a liquid level of the molten slag in the fusion conduit. In the molten slag wet granulation and granulated slag dewatering apparatus, when the molten slag flow rate exceeds a predetermined level as detected from the measurement of the flow rate, the normal water flow rate is increased to a predetermined level. In the vortex melting furnace, the flow rate of the molten slag at an exit of the melting furnace is fed back to the pitcher to control the flow rate of the molten slag.
REFERENCES:
patent: 4315771 (1982-02-01), Bobillon
patent: 5139412 (1992-08-01), Kychakoff et al.
patent: 5162906 (1992-11-01), Yorita et al.
patent: 5505435 (1996-04-01), Laszlo
"Development of Blast Furnace Slag Flow Rate Meter and its Application to Granulated Slag Sand Making Process", K. Sano et al., pp. 2581-2586, IFAC Control Science and Technology, Kyoto, Japan, 1981.
Abstract of Japanese Patent Publ. No. 58-172514, dated Oct. 11, 1983.
Boudreau Leo
Mehta Bhavesh
Tsukishima Kikai Co., Ltd.
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