Title: Development of caster slag detection system through imaging technique

Authors: Biswajit Chakraborty; Billol Kumar Sinha

Addresses: Research & Development Division, MECON Limited, Ranchi 834002, Jharkhand, India. ' Research & Development Division, MECON Limited, Ranchi 834002, Jharkhand, India

Abstract: Detection and removal of slag from the molten metal is an important aspect of steel making process. The application of infrared imaging, spectroscopic method and other contact type slag detection methods are inappropriate as far as caster slag detection is concerned. The detection of vibration due to slag flow has a major shortcoming. In the present article, a simple imaging technique is presented for caster slag detection. The imaging technique is based on the detection of sudden increase in the light intensity by a CCD camera as the slag floats immediately as it enters the tundish through the shroud in a casting operation. The camera is connected to a computer. As the detected light exceeds the predetermined limit, the system generates the indication of the onset of slag.

Keywords: caster slag detection; steel making; digital image processing; molten metal; casting.

DOI: 10.1504/IJIT.2011.043599

International Journal of Instrumentation Technology, 2011 Vol.1 No.1, pp.84 - 91

Received: 05 Nov 2010
Accepted: 08 Apr 2011

Published online: 28 Oct 2011 *

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