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Document ID (ISN)47683
CIS number 87-599
ISSN - Serial title 0024-449X - Litejnoe proizvodstvo
Year 1986
Convention or series no.
Author(s) Balev A.I., Kul'pa L.S., Jančuk V.F.
Title Development of a two-zone exhaust system for removing gases from low-capacity arc furnaces
Original title Razrabotka processa dvuhzonnogo gazootbora dugovyh pečej maloj vmestimosti [in Russian]
Bibliographic information July 1986, No.7, p.24.
Abstract When one metric ton of steel is refined in an electric arc furnace, 80-90kg of carbon monoxide, approx. 10kg fine dust, as well as sulfur monoxide, nitrogen and other substances are set free. The effectiveness of exhaust hoods rarely exceeds 70%. Description of a two-zone system which enables an effectiveness of 93-95% to be attained by exhausting 16,000-18,000m3/h (t=80░C): In the first zone, the gases are drawn from the charging door, and in the second, through the openings in the roof round the electrodes, from where the gases pass into a telescopic and articulated duct allowing the furnace to be tilted. While the gases are exhausted, air penetrates into the furnace and helps to burn part of the carbon monoxide.
Descriptors (primary) local exhaust; carbon monoxide; steelworks; foundries; electric arc furnaces
Descriptors (secondary) exhaust devices; description of equipment
Document type D - Periodical articles
Subject(s) Metal production and metalworking
Broad subject area(s) Chemical safety
Browse category(ies) Ventilation
Inorganic substances
Carbon monoxide
Foundries, metalcasting and forging operations
Iron and steel industry