发明名称 |
Pulverized coal combustion burner |
摘要 |
A pulverized coal combustion burner includes a pulverized coal nozzle, and secondary and tertiary air nozzles provided in concentric relation to the pulverized coal nozzle. A flame stabilizing ring is provided at an outlet end of the pulverized coal nozzle. A separation wall is provided within the pulverized coal nozzle to divide a passage in this nozzle into two passages. A pulverized coal/air mixture flows straight through the two passages, so that recirculation flows of the pulverized coal/air mixture are formed in proximity to the outlet end of the pulverized coal nozzle. As a result, the ignitability of the pulverized coal, as well as a combustion rate, is enhanced, thereby reducing the amount of discharge of NOx.
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申请公布号 |
US5685242(A) |
申请公布日期 |
1997.11.11 |
申请号 |
US19950406029 |
申请日期 |
1995.03.17 |
申请人 |
HITACHI, LTD.;BABCOCK-HITACHI KABUSHIKI KAISHA |
发明人 |
NARATO, KIYOSHI;KOBAYASHI, HIRONOBU;TANIGUCHI, MASAYUKI;KOHNO, TSUYOSHI;OKAZAKI, HIROFUMI;ITO, KAZUYUKI;MORITA, SHIGEKI;BABA, AKIRA |
分类号 |
F23C6/04;F23C9/00;F23C99/00;F23D1/00;F23K3/02;(IPC1-7):F23C1/10 |
主分类号 |
F23C6/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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