Cupola furnace system
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United States of America Patent
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-
Jan 25, 1983
Grant Date -
N/A
app pub date -
Nov 10, 1980
filing date -
Jun 25, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cupola system for production of gray iron employs otherwise wasted heat to preheat fuel, pig iron, flux and compressed air fed into a melting furnace, by diversion of melting furnace exhaust-gases through a preheating furnace containing feeding conduits for the fuel, pig iron and flux, and for the compressed air; the preheating furnace is laterally inclined downwardly from a point of exhaust to a chimney, to the melting furnace; the diverting means includes a closed, downwardly concave reflecting top over the melting furnace, and the preheating furnace has a concave roof; an important provision of the invention is employment of a maximum number of conventional size and shape tuyeres in a radial array in the melting furnace.
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