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Patent Searching and Data


Title:
A METHOD AND A SYSTEM FOR DETERMINATION OF REFRACTORY WEAR PROFILE IN A BLAST FURNACE
Document Type and Number:
WIPO Patent Application WO/2014/030118
Kind Code:
A3
Abstract:
The life of a Blast Furnace is determined by the condition of the Hearth. Numerous thermocouples are embedded in the refractory lining and the temperature readings are monitored for sudden temperature increases. These provide warnings about the approach of the hot metal body to the periphery of the Blast Furnace presaging refractory wear leading to failure. Because of the fatal nature of the consequences, the temperature readings have to be interpreted correctly. This invention describes a method whereby the left out refractory lining profile is estimated as well as the thickness of the protective skull. It serves as a guide to continue operation of the furnace, to direct repair work to the critical areas, as well as to suggest replacement of faulty sensors. In the effect, this method serves to increase the working life of Blast Furnaces.

Inventors:
GHOSH DEBIPRASAD (IN)
SENGUPTA BHASKAR (IN)
MAITRA SHYAM (IN)
Application Number:
PCT/IB2013/056752
Publication Date:
April 17, 2014
Filing Date:
August 20, 2013
Export Citation:
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Assignee:
LARSEN & TOUBRO LTD (IN)
International Classes:
G01B21/08; C21B7/00; G01N25/00
Foreign References:
JP3347462B22002-11-20
CN101457268A2009-06-17
US5961214A1999-10-05
US5975754A1999-11-02
Attorney, Agent or Firm:
MAJUMDAR, Subhatosh et al. (5, Harish Mukherjee Road, Kolkata 5, IN)
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