Pulverized coal burner for oxyfuel combustion boiler
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United States of America Patent
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Nov 7, 2017
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app pub date -
Mar 6, 2008
filing date -
Mar 6, 2008
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Abstract
A pulverized coal burner for an oxyfuel combustion boiler which attains uniform combustion from a pulverized coal burner and which constrains a temperature rise of an oxygen injection nozzle is provided. The burner includes burner inner and outer cylinders arranged to penetrate a wind box and come close to a throat portion. A pulverized coal feed passage is provided between the burner inner and outer cylinders. A plurality of oxygen injection devices are arranged outwardly of the burner outer cylinder so as to directly feed oxygen ahead of the burner outer cylinder.
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