发明公开
EP0047346A1 Disposal of oxides of nitrogen and heat recovery in a single self-contained structure
失效
在einer kombinierten Vorrichtung的Entfernung von Stickoxiden undWärmeerzeugung。
- 专利标题： Disposal of oxides of nitrogen and heat recovery in a single self-contained structure
- 专利标题（中）： 在einer kombinierten Vorrichtung的Entfernung von Stickoxiden undWärmeerzeugung。
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申请号： EP80303035.2申请日： 1980-09-01
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公开(公告)号： EP0047346A1公开(公告)日： 1982-03-17
- 发明人: Hart, Wallace F. , Watts, David O. , Reed, Robert D.
- 申请人： JOHN ZINK COMPANY
- 申请人地址： 4401, South Peoria Tulsa, Oklahoma 74103 US
- 专利权人： JOHN ZINK COMPANY
- 当前专利权人： JOHN ZINK COMPANY
- 当前专利权人地址： 4401, South Peoria Tulsa, Oklahoma 74103 US
- 代理机构： Kerr, Simonne June
- 主分类号： B01D53/34
- IPC分类号： B01D53/34
摘要：
A self-contained single structure for NOx disposal and heat recovery, comprising a burner means (112), including means to supply NOx (oxides of nitrogen) gases (146) to be reduced, primary air (130) in less-than-stoichiometric flow rate, and gaseous fuel (128) at selected flow rate. The gases flow into a first reducing section (114), in which the fuel is burned in a reducing atmosphere, and the NOx gases are reduced. Fire tubes (124) carrying water or steam are positioned to receive heat from the burning gases. At the outlet of the reducing section precooled stack gases (135) are injected (137) into the flame so as to cool the hot products of combustion. The direction of flow of hot gases is turned 90° (164) in a second section. At the end of the second section the direction of flow is turned 90° so as to be counter to the first direction in a third or oxidizing section (182) to which secondary air is added (172) and a fourth or boiler section (124) accepts the hot gases from the oxidizing section to recover the waste heat.
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