发明名称 |
Arrangement for burning fuels in a fluidized bed with an augmented solids circulation in a combustion chamber of a steam generator |
摘要 |
A steam generator and a method of burning fuels therein. A combustion chamber of gas-tight pipe walls has a fluidized bed. Above the bed is a free space with an incrementally lower solids density that accommodates heat-convection surfaces. Coarse-particle precipitators communicate with the top of the combustion chamber with their solids-extraction outlet communicating with the fluidized bed through a feedback system. The combustion chamber, its heat-convection surfaces, the coarse-particle precipitators, and the feedback system are surrounded by pressurized vessel. The fuel is burned in the fluidized bed under pressure. Densities of 0.5 to 5 kg of solids per kg of flue gas are maintained in the free space (4) above the bed by means of fluidizing rates of 1 to 5 m/sec. The temperature of and load on the fluidized bed are regulated by the amount of solids returned to the bed.
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申请公布号 |
US4790267(A) |
申请公布日期 |
1988.12.13 |
申请号 |
US19870136833 |
申请日期 |
1987.12.22 |
申请人 |
DEUTSCHE BABCOCK WERKE AKTIENGESELLSCHAFT |
发明人 |
MOELLENHOFF, HORST;REHWINKEL, HEIKO;BUNTHOFF, DIRK |
分类号 |
F23C10/16;F22B31/00;F23J3/06;(IPC1-7):F23C11/02 |
主分类号 |
F23C10/16 |
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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