| 摘要 |
In an incinerator having a fluid bed for combustion of combustible material being fed into the furnace, where fluidising in a medium therefor is caused by means of air let in from the lower part of the fluid bed, the combustion may be controlled in the following way: the rate of combustion for the material to be incinerated in the furnace is determined by means of devices suitable therefor, and when the combustion rate exceeds a predetermined value, the amount of air let in from the lower part of the fluid bed is reduced, and at the same time the amount is increased of air blown into a zone over the fluid bed for control and maintaining of the combustion rate in the furnace at a predetermined level and for suppressing fluctuations in the amount of combustion air, the amount of discharge air, the amount of unburnt gas, or similar. This method for combustion control may also be used in an incinerator having a fluid bed and constructed in such a way that it comprises an array of air chambers at the lower part of the fluid bed, through which chambers air is led into the incinerator, and the rate of combustion of the combustible material by regulating the amount of air led in from the air chamber situated at the part of the furnace where material is thrown in. <IMAGE>
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