METHOD AND APPARATUS FOR REDUCING THE NOX EMISSIONS IN A ROTARY KILN |
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| 申请号 | US15758191 | 申请日 | 2016-08-30 | 公开(公告)号 | US20180252473A1 | 公开(公告)日 | 2018-09-06 |
| 申请人 | HOLCIM TECHNOLOGY LTD; | 发明人 | Irwin GAFNER; | ||||
| 摘要 | In a method for reducing the NOx emissions of a rotary kiln of a clinker production plant, fuel supplied through a burner of the rotary kiln is burned along with primary air fed through the burner, wherein the primary air has a lower oxygen content and the primary air has an oxygen content reduced relative to that of the ambient air and a temperature increased relative to that of the ambient air, and the primary air is obtained by mixing ambient air with exhaust gas from the rotary kiln or from a heat exchanger connected to the rotary kiln and used for preheating raw meal. The primary air is further obtained by mixing with hot air, in particular waste air from a clinker cooler. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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