| 摘要 |
<p>The method comprises preheating raw material up to at least 450 DEG C and then dividing the flow into at least two component streams, of which one steam is burnt or roasted to form cement clinker in a kiln (2) and the other stream is branched off and used to produce a lightly burnt hydraulic binding agent. The branched stream consisting of gas and solids is taken from the part of the plant, operating in the temperature range between 450 DEG C and 950 DEG C, and is separated into solids and gas and the solids are cooled and further processed to form hydraulic binding agents (31). In the apparatus utilised, gas and solids are branched off in a conduit (5) which leads to a separator (6), the solids from which are supplied to a suspension-type cooler (8) and then pass to a slaking and mixing unit (18) where they are mixed with water and other substances to form the hydraulic binding agents. <IMAGE></p> |
