Combustion device for melting furnace and melting furnace
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United States of America Patent
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Aug 18, 2015
Grant Date -
May 30, 2013
app pub date -
Sep 7, 2010
filing date -
Oct 23, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A combustion device for a melting furnace, capable of heating a melting target object and the ceiling portion of the furnace with the radiant heat of the flame, including a combustion space above the location of the melting target object, including a fuel injection nozzle having a plurality of fuel injecting portions, which portions include orifices disposed side by side horizontally relative to the direction of fuel injection, and formed side by side vertically relative to the same. The orifices are formed radially side by side as seen laterally, with a direction along a middle angle in the angular range between the fuel injection direction of the uppermost fuel injection orifice and the fuel injection direction of the lowermost fuel injection orifice being directed obliquely upwards. The fuel injection orifices of the upper fuel injecting portion are formed radially side by side as seen in the plane view.
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