| 摘要 |
<p>Described is a method as well as a plant for the simultaneous production of electricity and cement clinker by which method cement raw meal is calcined in a calciner (4) subject to simultaneous supply of fuel and combustion air and subsequently burned into cement clinker in a kiln (5), and where some of the heat contained in the exhaust gases from the calciner (4) is utilized to generate electricity by means of a boiler section (18). The method and plant are peculiar in that the combustion air supplied to the calciner (4) does not contain alkali or chloride, and in that the temperature of the exhaust gases used to generate electricity is at least 500° C. Coating formations formed on the boiler tubes due to the condensation of alkali and chloride vapours can be avoided, while, at the same time, the efficiency with which thermal energy can be converted into electrical energy can be increased.</p> |
