| 摘要 |
<p>A method of producing cement clinker and electricity comprises feeding cement raw meal constituents in crushed form and coal in a circulating fluidized bed boiler furnace (1), calcining the cement constituents therein and producing steam with the flue gases, discharging calcined material in a rotary kiln (16) and clinkering it therein. The gas and the solids out of the fluidized bed (1) enter a separating cyclone system (8). The gas and the fly ash escaping the cyclone system are passed to a conventional boiler back pass (34). At the inlet of the boiler backpass the lime-rich fly ash is separated from the flue gas in an inverted secondary cyclone (35) and then forwarded directly to the kiln (16) through a solids transfer channel (92).</p> |
