发明授权
- 专利标题: Recovery boiler
- 专利标题(中): 回收锅炉
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申请号: US750880申请日: 1996-12-17
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公开(公告)号: US5771817A公开(公告)日: 1998-06-30
- 发明人: Lars Olausson , Jan Bergman , Sven-Erik Jansson , Agneta Larsson
- 申请人: Lars Olausson , Jan Bergman , Sven-Erik Jansson , Agneta Larsson
- 申请人地址: SEX
- 专利权人: Kvaerner Pulping AB
- 当前专利权人: Kvaerner Pulping AB
- 当前专利权人地址: SEX
- 优先权: SEX9402152-4 19940620
- 主分类号: D21C11/12
- IPC分类号: D21C11/12 ; F23G7/04 ; F23L9/02
摘要:
A recovery boiler for combusting spent liquor from cellulose cooking while at the same time recovering chemicals. The recovery boiler is constructed for so-called "rotafire" combustion and the speed of rotation of the secondary air has been increased by a constriction of the boiler being arranged at the tertiary air level. The invention also includes a process for using the boiler which is based on certain ports through which the secondary air is blown in being provided with air which is at a higher pressure than that at the other ports on the same level, thereby achieving a higher inflow velocity than from the other ports.