| 摘要 |
<p>Secondary raw materials for cement consisting of residues from combustion on the fluidized bed principle, which are extracted as "bed ash" behind the fluidized bed or as fine dust behind a cyclone separator or behind a filter, are ground (either without the admixture of other residues of the fluidized bed firing, or mixed dry jointly or in pairs to form a single residue) jointly with a cement raw material to form cement raw meal or jointly with the burnt cement clinker, after the burning of the raw meal, to form cement.</p> |
