| 摘要 |
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 calcine d in a calciner (4) subject to simultaneous supply of fuel and combustion ai r 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 p lant are peculiar in that the combustion air supplied to the calciner (4) do es not contain alkali or chloride, and in that the temperature of the exhaus t gases used to generate electricity is at least 500° C. Hereby is obtained that coating formations formed on the boiler tubes due to the condensation o f alkali and chloride vapours can be avoided, while, at the same time, the e fficiency with which thermal energy can be converted into electrical energy can be increased.
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