A device for removing volatile components, such as chlorine, alkali and sulfur, from a cement making plant

摘要

Described is a method as well as an apparatus for removing volatile components, such as chloride, alkali and sulphur, from a cement manufacturing plant, which plant comprises a preheater (1) for preheating cement raw materials, a kiln (5) for burning cement clinker, and a transition zone (3) between the preheater (1) and the kiln (5). The method and apparatus is peculiar in that a condensation body (9) having a temperature which is lower than the condensation temperature of the volatile components is introduced into the exhaust gases at a location where the temperature of the exhaust gases exceeds the mentioned condensation temperature so that volatile components when brought into contact with the condensation body are cooled to a level below their condensation temperature and are thereby condensed and deposited on the condensation body (9), and in that the condensation body (9) is subsequently taken out from the exhaust gases and cleaned of deposited condensation products.